diff options
Diffstat (limited to 'hicn-plugin/src')
90 files changed, 24358 insertions, 0 deletions
diff --git a/hicn-plugin/src/cache_policies/cs_lru.c b/hicn-plugin/src/cache_policies/cs_lru.c new file mode 100755 index 000000000..f35bee3c9 --- /dev/null +++ b/hicn-plugin/src/cache_policies/cs_lru.c @@ -0,0 +1,213 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "../hashtb.h" +#include "../strategy_dpo_manager.h" +#include "../error.h" +#include "cs_lru.h" +#include "cs_policy.h" + +hicn_cs_policy_vft_t hicn_cs_lru = { + .hicn_cs_insert = &hicn_cs_lru_insert, + .hicn_cs_update = &hicn_cs_lru_update_head, + .hicn_cs_dequeue = &hicn_cs_lru_dequeue, + .hicn_cs_delete_get = &hicn_cs_lru_delete_get, + .hicn_cs_trim = &hicn_cs_lru_trim, +}; + +/* + * Insert a new CS element at the head of the CS LRU + */ +void +hicn_cs_lru_insert (hicn_pit_cs_t * p, hicn_hash_node_t * node, + hicn_pcs_entry_t * pcs, hicn_cs_policy_t * policy_state) +{ + hicn_hash_node_t *lrunode; + hicn_pcs_entry_t *lrupcs; + u32 idx; + + idx = hicn_hashtb_node_idx_from_node (p->pcs_table, node); + + if (policy_state->head != 0) + { + lrunode = hicn_hashtb_node_from_idx (p->pcs_table, policy_state->head); + lrupcs = hicn_pit_get_data (lrunode); + + ASSERT (lrupcs->u.cs.cs_lru_prev == 0); + lrupcs->u.cs.cs_lru_prev = idx; + + pcs->u.cs.cs_lru_prev = 0; + pcs->u.cs.cs_lru_next = policy_state->head; + + policy_state->head = idx; + } + else + { + ASSERT (policy_state->tail == 0); /* We think the list is + * empty */ + + policy_state->head = policy_state->tail = idx; + + pcs->u.cs.cs_lru_next = pcs->u.cs.cs_lru_prev = 0; + } + + policy_state->count++; +} + +void +hicn_cs_lru_delete_get (hicn_pit_cs_t * p, hicn_cs_policy_t * policy_state, + hicn_hash_node_t ** nodep, + hicn_pcs_entry_t ** pcs_entry, + hicn_hash_entry_t ** hash_entry) +{ + *nodep = hicn_hashtb_node_from_idx (p->pcs_table, policy_state->tail); + *pcs_entry = hicn_pit_get_data (*nodep); + + *hash_entry = hicn_hashtb_get_entry (p->pcs_table, (*nodep)->entry_idx, + (*nodep)->bucket_id, + (*nodep)->hn_flags & + HICN_HASH_NODE_OVERFLOW_BUCKET); +} + +/* + * Dequeue an LRU element, for example when it has expired. + */ +void +hicn_cs_lru_dequeue (hicn_pit_cs_t * pit, hicn_hash_node_t * pnode, + hicn_pcs_entry_t * pcs, hicn_cs_policy_t * lru) +{ + hicn_hash_node_t *lrunode; + hicn_pcs_entry_t *lrupcs; + + if (pcs->u.cs.cs_lru_prev != 0) + { + /* Not already on the head of the LRU */ + lrunode = hicn_hashtb_node_from_idx (pit->pcs_table, + pcs->u.cs.cs_lru_prev); + lrupcs = hicn_pit_get_data (lrunode); + + lrupcs->u.cs.cs_lru_next = pcs->u.cs.cs_lru_next; + } + else + { + ASSERT (lru->head == + hicn_hashtb_node_idx_from_node (pit->pcs_table, pnode)); + lru->head = pcs->u.cs.cs_lru_next; + } + + if (pcs->u.cs.cs_lru_next != 0) + { + /* Not already the end of the LRU */ + lrunode = hicn_hashtb_node_from_idx (pit->pcs_table, + pcs->u.cs.cs_lru_next); + lrupcs = hicn_pit_get_data (lrunode); + + lrupcs->u.cs.cs_lru_prev = pcs->u.cs.cs_lru_prev; + } + else + { + /* This was the last LRU element */ + ASSERT (lru->tail == + hicn_hashtb_node_idx_from_node (pit->pcs_table, pnode)); + lru->tail = pcs->u.cs.cs_lru_prev; + } + + pcs->u.cs.cs_lru_next = pcs->u.cs.cs_lru_prev = 0; + lru->count--; +} + +/* + * Move a CS LRU element to the head, probably after it's been used. + */ +void +hicn_cs_lru_update_head (hicn_pit_cs_t * pit, hicn_hash_node_t * pnode, + hicn_pcs_entry_t * pcs, hicn_cs_policy_t * lru) +{ + if (pcs->u.cs.cs_lru_prev != 0) + { + /* + * Not already on the head of the LRU, detach it from its + * current position + */ + hicn_cs_lru_dequeue (pit, pnode, pcs, lru); + + /* Now detached from the list; attach at head */ + hicn_cs_lru_insert (pit, pnode, pcs, lru); + + } + else + { + ASSERT (lru->head == + hicn_hashtb_node_idx_from_node (pit->pcs_table, pnode)); + } +} + +/* + * Remove a batch of nodes from the CS LRU, copying their node indexes into + * the caller's array. We expect this is done when the LRU size exceeds the + * CS's limit. Return the number of removed nodes. + */ +int +hicn_cs_lru_trim (hicn_pit_cs_t * pit, u32 * node_list, int sz, + hicn_cs_policy_t * lru) +{ + hicn_hash_node_t *lrunode; + hicn_pcs_entry_t *lrupcs; + u32 idx; + int i; + + idx = lru->tail; + + for (i = 0; i < sz; i++) + { + + if (idx == 0) + { + break; + } + lrunode = hicn_hashtb_node_from_idx (pit->pcs_table, idx); + lrupcs = hicn_pit_get_data (lrunode); + + node_list[i] = idx; + + idx = lrupcs->u.cs.cs_lru_prev; + lrupcs->u.cs.cs_lru_prev = 0; + lrupcs->u.cs.cs_lru_next = 0; + } + + lru->count -= i; + + lru->tail = idx; + if (idx != 0) + { + lrunode = hicn_hashtb_node_from_idx (pit->pcs_table, idx); + lrupcs = hicn_pit_get_data (lrunode); + + lrupcs->u.cs.cs_lru_next = 0; + } + else + { + /* If the tail is empty, the whole lru is empty */ + lru->head = 0; + } + + return (i); +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/cache_policies/cs_lru.h b/hicn-plugin/src/cache_policies/cs_lru.h new file mode 100755 index 000000000..94320f7f9 --- /dev/null +++ b/hicn-plugin/src/cache_policies/cs_lru.h @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __LRU_H__ +#define __LRU_H__ + +#include "../pcs.h" +#include "../hashtb.h" +#include "cs_policy.h" + +extern hicn_cs_policy_vft_t hicn_cs_lru; + +/* + * Insert a new CS element at the head of the CS LRU + */ +void +hicn_cs_lru_insert (hicn_pit_cs_t * pcs, hicn_hash_node_t * pnode, + hicn_pcs_entry_t * entry, hicn_cs_policy_t * lru); + + +/* + * Dequeue an LRU element, for example when it has expired. + */ +void +hicn_cs_lru_dequeue (hicn_pit_cs_t * pcs, hicn_hash_node_t * pnode, + hicn_pcs_entry_t * entry, hicn_cs_policy_t * lru); + +/* + * Move a CS LRU element to the head, probably after it's been used. + */ +void +hicn_cs_lru_update_head (hicn_pit_cs_t * pcs, hicn_hash_node_t * pnode, + hicn_pcs_entry_t * entry, hicn_cs_policy_t * lru); + +void +hicn_cs_lru_delete_get (hicn_pit_cs_t * p, hicn_cs_policy_t * policy, + hicn_hash_node_t ** node, hicn_pcs_entry_t ** pcs, + hicn_hash_entry_t ** hash_entry); + +/* + * Remove a batch of nodes from the CS LRU, copying their node indexes into + * the caller's array. We expect this is done when the LRU size exceeds the + * CS's limit. Return the number of removed nodes. + */ +int hicn_cs_lru_trim (hicn_pit_cs_t * pcs, u32 * node_list, int sz, + hicn_cs_policy_t * lru); + + +#endif /* // __LRU_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/cache_policies/cs_policy.h b/hicn-plugin/src/cache_policies/cs_policy.h new file mode 100755 index 000000000..08817de18 --- /dev/null +++ b/hicn-plugin/src/cache_policies/cs_policy.h @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_CS_POLICY_H__ +#define __HICN_CS_POLICY_H__ + +#include "../hashtb.h" + +/* + * Structure + */ +typedef struct hicn_cs_policy_s +{ + u32 max; + u32 count; + + /* Indexes to hashtable nodes forming CS LRU */ + u32 head; + u32 tail; + +} hicn_cs_policy_t; + +/* Forward declaration */ +struct hicn_pit_cs_s; +struct hicn_hash_node_s; +struct hicn_pcs_entry_s; +struct hicn_cs_policy_s; + +/** + * @brief Definition of the virtual functin table for a cache policy. + * + * A cache policy must implement three functions: insert, update, delete, trim. + */ +typedef struct hicn_cs_policy_vft_s +{ + void (*hicn_cs_insert) (struct hicn_pit_cs_s * p, + struct hicn_hash_node_s * node, + struct hicn_pcs_entry_s * pcs, + hicn_cs_policy_t * policy); + + void (*hicn_cs_update) (struct hicn_pit_cs_s * p, + struct hicn_hash_node_s * node, + struct hicn_pcs_entry_s * pcs, + hicn_cs_policy_t * policy); + + void (*hicn_cs_dequeue) (struct hicn_pit_cs_s * p, + struct hicn_hash_node_s * node, + struct hicn_pcs_entry_s * pcs, + hicn_cs_policy_t * policy); + + void (*hicn_cs_delete_get) (struct hicn_pit_cs_s * p, + hicn_cs_policy_t * policy, + struct hicn_hash_node_s ** node, + struct hicn_pcs_entry_s ** pcs, + struct hicn_hash_entry_s ** hash_entry); + + int (*hicn_cs_trim) (struct hicn_pit_cs_s * p, u32 * node_list, int sz, + hicn_cs_policy_t * policy); +} hicn_cs_policy_vft_t; + + + +#endif /* // __HICN_POLICY_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/cli.c b/hicn-plugin/src/cli.c new file mode 100755 index 000000000..c8c0be4ff --- /dev/null +++ b/hicn-plugin/src/cli.c @@ -0,0 +1,1247 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> +#include <vppinfra/error.h> +#include <vlibapi/api.h> +#include <vlibmemory/api.h> + +#include <vnet/udp/udp.h> // port registration +#include <vnet/ip/ip6_packet.h> // ip46_address_t +#include <vnet/ip/format.h> + +#include "hicn.h" +#include "infra.h" +#include "parser.h" +#include "mgmt.h" +#include "strategy_dpo_manager.h" +#include "strategy.h" +#include "pg.h" +#include "error.h" +#include "faces/face.h" +#include "route.h" +#include "punt.h" +#include "hicn_api.h" +#include "mapme.h" + +extern ip_version_t ipv4; +extern ip_version_t ipv6; + +static vl_api_hicn_api_node_params_set_t node_ctl_params = { + .pit_max_size = -1, + .pit_dflt_lifetime_sec = -1.0f, + .pit_min_lifetime_sec = -1.0f, + .pit_max_lifetime_sec = -1.0f, + .cs_max_size = -1, + .cs_reserved_app = -1, +}; + +typedef enum +{ + IP, + ETHERNET, +} interface_type_t; + +/* + * Supporting function that return if the interface is IP or ethernet + */ +static interface_type_t +hicn_cli_is_ip_interface (vlib_main_t * vm, + vnet_main_t * vnm, u32 sw_if_index) +{ + + vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, sw_if_index); + + vnet_device_class_t *dev_class = + vnet_get_device_class (vnm, hi->dev_class_index); + if (!strcmp (dev_class->name, "Loopback")) + { + return IP; + } + return ETHERNET; + +} + +/* + * cli handler for 'control start' + */ +static clib_error_t * +hicn_cli_node_ctl_start_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + int ret; + + ret = hicn_infra_plugin_enable_disable (1 /* enable */ , + node_ctl_params.pit_max_size, + node_ctl_params.pit_dflt_lifetime_sec, + node_ctl_params.pit_min_lifetime_sec, + node_ctl_params.pit_max_lifetime_sec, + node_ctl_params.cs_max_size, + node_ctl_params.cs_reserved_app); + + vlib_cli_output (vm, "hicn: fwdr initialize => %s\n", + get_error_string (ret)); + + return (ret == HICN_ERROR_NONE) ? 0 : clib_error_return (0, + get_error_string + (ret)); +} + +/* + * cli handler for 'control stop' + */ +static clib_error_t * +hicn_cli_node_ctl_stop_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + int ret; + + /* + * Catch unexpected extra arguments on this line. See comment on + * hicn_cli_node_ctrl_start_set_command_fn + */ + if (main_input->index > 0 && + main_input->buffer[main_input->index - 1] != '\n') + { + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return (0); + } + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + return clib_error_return (0, "%s '%U'", + get_error_string (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + ret = hicn_infra_plugin_enable_disable (0 /* !enable */ , + node_ctl_params.pit_max_size, + node_ctl_params.pit_dflt_lifetime_sec, + node_ctl_params.pit_min_lifetime_sec, + node_ctl_params.pit_max_lifetime_sec, + node_ctl_params.cs_max_size, + node_ctl_params.cs_reserved_app); + + return (ret == HICN_ERROR_NONE) ? 0 : clib_error_return (0, + get_error_string + (ret)); +} + +#define DFLTD_RANGE_OK(val, min, max) \ +({ \ + __typeof__ (val) _val = (val); \ + __typeof__ (min) _min = (min); \ + __typeof__ (max) _max = (max); \ + (_val == -1) || \ + (_val >= _min && _val <= _max); \ +}) + +/* + * cli handler for 'control param' + */ +static clib_error_t * +hicn_cli_node_ctl_param_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + int rv = 0; + + int table_size; + f64 lifetime; + int cs_reserved_app; + + if (hicn_main.is_enabled) + { + return (clib_error_return + (0, "params cannot be altered once hicn started")); + } + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return clib_error_return (0, + get_error_string + (HICN_ERROR_FWD_ALREADY_ENABLED)); + } + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "pit")) + { + if (unformat (line_input, "size %d", &table_size)) + { + if (!DFLTD_RANGE_OK (table_size, HICN_PARAM_PIT_ENTRIES_MIN, + HICN_PARAM_PIT_ENTRIES_MAX)) + { + rv = HICN_ERROR_PIT_CONFIG_SIZE_OOB; + break; + } + node_ctl_params.pit_max_size = table_size; + } + else if (unformat (line_input, "dfltlife %f", &lifetime)) + { + if (!DFLTD_RANGE_OK + (lifetime, HICN_PARAM_PIT_LIFETIME_BOUND_MIN_SEC, + HICN_PARAM_PIT_LIFETIME_BOUND_MAX_SEC)) + { + rv = HICN_ERROR_PIT_CONFIG_DFTLT_OOB; + break; + } + node_ctl_params.pit_dflt_lifetime_sec = lifetime; + } + else if (unformat (line_input, "minlife %f", &lifetime)) + { + if (!DFLTD_RANGE_OK + (lifetime, HICN_PARAM_PIT_LIFETIME_BOUND_MIN_SEC, + HICN_PARAM_PIT_LIFETIME_BOUND_MAX_SEC)) + { + rv = HICN_ERROR_PIT_CONFIG_MINLT_OOB; + break; + } + node_ctl_params.pit_min_lifetime_sec = lifetime; + } + else if (unformat (line_input, "maxlife %f", &lifetime)) + { + if (!DFLTD_RANGE_OK + (lifetime, HICN_PARAM_PIT_LIFETIME_BOUND_MIN_SEC, + HICN_PARAM_PIT_LIFETIME_BOUND_MAX_SEC)) + { + rv = HICN_ERROR_PIT_CONFIG_MAXLT_OOB; + break; + } + node_ctl_params.pit_max_lifetime_sec = lifetime; + } + else + { + rv = HICN_ERROR_CLI_INVAL; + break; + } + } + else if (unformat (line_input, "cs")) + { + if (unformat (line_input, "size %d", &table_size)) + { + if (!DFLTD_RANGE_OK (table_size, HICN_PARAM_CS_ENTRIES_MIN, + HICN_PARAM_CS_ENTRIES_MAX)) + { + rv = HICN_ERROR_CS_CONFIG_SIZE_OOB; + break; + } + node_ctl_params.cs_max_size = table_size; + } + else if (unformat (line_input, "app %d", &cs_reserved_app)) + { + if (!DFLTD_RANGE_OK (cs_reserved_app, 0, 100)) + { + rv = HICN_ERROR_CS_CONFIG_SIZE_OOB; + break; + } + node_ctl_params.cs_reserved_app = cs_reserved_app; + } + else + { + rv = HICN_ERROR_CLI_INVAL; + break; + } + } + else + { + rv = HICN_ERROR_CLI_INVAL; + break; + } + } + + if (node_ctl_params.cs_max_size == 0) + vlib_cli_output (vm, + "CS size set to 0. Consider disable CS at compilation time for better performances\n"); + + return (rv == HICN_ERROR_NONE) ? 0 : clib_error_return (0, "%s '%U'", + get_error_string + (rv), + format_unformat_error, + line_input); +} + +/* + * cli handler for 'hicn show' + */ +static clib_error_t * +hicn_cli_show_command_fn (vlib_main_t * vm, unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + int face_p = 0, fib_p = 0, all_p, internal_p = 0, strategies_p = 0, ret = + HICN_ERROR_NONE; + + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (unformat_user (main_input, unformat_line_input, line_input)) + { + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "face all")) + { + face_p = 1; + } + else if (unformat (line_input, "internal")) + { + /* + * We consider 'internal' a superset, so + * include 'detail' too + */ + internal_p = 1; + } + else if (unformat (line_input, "strategies")) + { + /* + * We consider 'internal' a superset, so + * include 'detail' too + */ + strategies_p = 1; + } + else + { + ret = HICN_ERROR_CLI_INVAL; + goto done; + } + } + } + /* If nothing specified, show everything */ + if ((face_p == 0) && (fib_p == 0) && (strategies_p == 0)) + { + all_p = 1; + } + if (!hicn_main.is_enabled) + { + if (node_ctl_params.pit_max_size == -1 && + node_ctl_params.pit_dflt_lifetime_sec == -1 && + node_ctl_params.pit_min_lifetime_sec == -1 && + node_ctl_params.pit_max_lifetime_sec == -1 && + node_ctl_params.cs_max_size == -1 && + node_ctl_params.cs_reserved_app == -1) + { + ret = HICN_ERROR_FWD_NOT_ENABLED; + goto done; + } + vlib_cli_output (vm, "Forwarder: %sabled\nPreconfiguration:\n", + hicn_main.is_enabled ? "en" : "dis"); + + if (node_ctl_params.pit_max_size != -1) + { + vlib_cli_output (vm, " PIT:: max entries:%d\n", + node_ctl_params.pit_max_size); + } + if (node_ctl_params.pit_dflt_lifetime_sec != -1) + { + vlib_cli_output (vm, " PIT:: dflt lifetime: %05.3f seconds\n", + node_ctl_params.pit_dflt_lifetime_sec); + } + if (node_ctl_params.pit_min_lifetime_sec != -1) + { + vlib_cli_output (vm, " PIT:: min lifetime: %05.3f seconds\n", + node_ctl_params.pit_min_lifetime_sec); + } + if (node_ctl_params.pit_max_lifetime_sec != -1) + { + vlib_cli_output (vm, " PIT:: max lifetime: %05.3f seconds\n", + node_ctl_params.pit_max_lifetime_sec); + } + if (node_ctl_params.cs_max_size != -1) + { + vlib_cli_output (vm, " CS:: max entries:%d\n", + node_ctl_params.cs_max_size); + } + if (node_ctl_params.cs_reserved_app != -1) + { + vlib_cli_output (vm, " CS:: reserved to app:%d\n", + node_ctl_params.cs_reserved_app); + } + goto done; + } + /* Globals */ + vlib_cli_output (vm, + "Forwarder: %sabled\n" + " PIT:: max entries:%d," + " lifetime default: %05.3f sec (min:%05.3f, max:%05.3f)\n" + " CS:: max entries:%d, network entries:%d, app entries:%d (allocated %d, free %d)\n", + hicn_main.is_enabled ? "en" : "dis", + hicn_infra_pit_size, + ((f64) hicn_main.pit_lifetime_dflt_ms) / SEC_MS, + ((f64) hicn_main.pit_lifetime_min_ms) / SEC_MS, + ((f64) hicn_main.pit_lifetime_max_ms) / SEC_MS, + hicn_infra_cs_size, + hicn_infra_cs_size - hicn_main.pitcs.pcs_app_max, + hicn_main.pitcs.pcs_app_max, + hicn_main.pitcs.pcs_app_count, + hicn_main.pitcs.pcs_app_max - + hicn_main.pitcs.pcs_app_count); + + vl_api_hicn_api_node_stats_get_reply_t rm = { 0, } + , *rmp = &rm; + if (hicn_mgmt_node_stats_get (&rm) == HICN_ERROR_NONE) + { + vlib_cli_output (vm, //compare vl_api_hicn_api_node_stats_get_reply_t_handler block + " PIT entries (now): %d\n" + " CS total entries (now): %d, network entries (now): %d\n" + " Forwarding statistics:\n" + " pkts_processed: %d\n" + " pkts_interest_count: %d\n" + " pkts_data_count: %d\n" + " pkts_from_cache_count: %d\n" + " interests_aggregated: %d\n" + " interests_retransmitted: %d\n", + clib_net_to_host_u64 (rmp->pit_entries_count), + clib_net_to_host_u64 (rmp->cs_entries_count), + clib_net_to_host_u64 (rmp->cs_entries_ntw_count), + clib_net_to_host_u64 (rmp->pkts_processed), + clib_net_to_host_u64 (rmp->pkts_interest_count), + clib_net_to_host_u64 (rmp->pkts_data_count), + clib_net_to_host_u64 (rmp->pkts_from_cache_count), + clib_net_to_host_u64 (rmp->interests_aggregated), + clib_net_to_host_u64 (rmp->interests_retx)); + } + if (face_p || all_p) + { + u8 *strbuf = NULL; + + strbuf = format_hicn_face_all (strbuf, 1, 0); + vlib_cli_output (vm, "%s", strbuf); + + } + if (strategies_p || all_p) + { + u8 *strbuf = NULL; + + strbuf = format_hicn_strategy_list (strbuf, 1, 0); + vlib_cli_output (vm, (char *) strbuf); + } +done: + if (all_p && internal_p && ret == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Plugin features: cs:%d\n", HICN_FEATURE_CS); + vlib_cli_output (vm, + "Removed CS entries (and freed vlib buffers) %d, Removed PIT entries %d", + hicn_main.pitcs.pcs_cs_dealloc, + hicn_main.pitcs.pcs_pit_dealloc); + + } + return (ret == HICN_ERROR_NONE) ? 0 : clib_error_return (0, "%s\n", + get_error_string + (ret)); +} + +/* + * cli handler for 'fib' + */ +static clib_error_t * +hicn_cli_fib_set_command_fn (vlib_main_t * vm, unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + clib_error_t *cl_err = 0; + + int rv = HICN_ERROR_NONE; + int addpfx = -1; + ip46_address_t prefix; + hicn_face_id_t faceid = HICN_FACE_NULL; + u32 strategy_id; + u8 plen = 0; + + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return (0); + } + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (addpfx == -1 && unformat (line_input, "add")) + { + addpfx = 1; + } + else if (addpfx == -1 && unformat (line_input, "delete")) + { + addpfx = 0; + } + else if (unformat (line_input, "set strategy %d", &strategy_id)) + { + addpfx = 2; + } + else if (addpfx != -1 + && unformat (line_input, "prefix %U/%d", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &plen)) + {; + } + else if (addpfx <= 1 && unformat (line_input, "face %u", &faceid)) + {; + } + else + { + cl_err = clib_error_return (0, "%s '%U'", + get_error_string (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + goto done; + } + } + + /* Check parse */ + if (addpfx <= 1 + && ((ip46_address_is_zero (&prefix)) || faceid == HICN_FACE_NULL)) + { + cl_err = + clib_error_return (0, "Please specify prefix and a valid faceid..."); + goto done; + } + /* Check parse */ + if ((ip46_address_is_zero (&prefix)) + || (addpfx == 2 && hicn_dpo_strategy_id_is_valid (strategy_id))) + { + cl_err = clib_error_return (0, + "Please specify prefix and strategy_id..."); + goto done; + } + if (addpfx == 0) + { + if (ip46_address_is_zero (&prefix)) + { + cl_err = clib_error_return (0, "Please specify prefix"); + goto done; + } + if (faceid == HICN_FACE_NULL) + { + rv = hicn_route_del (&prefix, plen); + } + else + { + rv = hicn_route_del_nhop (&prefix, plen, faceid); + } + cl_err = + (rv == HICN_ERROR_NONE) ? NULL : clib_error_return (0, + get_error_string + (rv)); + + } + else if (addpfx == 1) + { + rv = hicn_route_add (&faceid, 1, &prefix, plen); + if (rv == HICN_ERROR_ROUTE_ALREADY_EXISTS) + { + rv = hicn_route_add_nhops (&faceid, 1, &prefix, plen); + } + cl_err = + (rv == HICN_ERROR_NONE) ? NULL : clib_error_return (0, + get_error_string + (rv)); + } + else if (addpfx == 2) + { + rv = hicn_route_set_strategy (&prefix, plen, strategy_id); + cl_err = + (rv == HICN_ERROR_NONE) ? NULL : clib_error_return (0, + get_error_string + (rv)); + } +done: + + return (cl_err); +} + +static clib_error_t * +hicn_cli_punting_command_fn (vlib_main_t * vm, unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + hicn_mgmt_punting_op_e punting_op = HICN_MGMT_PUNTING_OP_NONE; + unsigned int subnet_mask = 0; + ip46_address_t prefix; + u32 sw_if_index = ~0; + int ret = 0; + vnet_main_t *vnm = NULL; + u8 type = HICN_PUNT_IP_TYPE; + u32 src_port = 0, dst_port = 0; + vnm = vnet_get_main (); + + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return (0); + } + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "add")) + { + punting_op = HICN_MGMT_PUNTING_OP_CREATE; + } + else if (unformat (line_input, "delete")) + { + punting_op = HICN_MGMT_PUNTING_OP_DELETE; + } + else if (unformat (line_input, "intfc %U", + unformat_vnet_sw_interface, vnm, &sw_if_index)) + {; + } + else if (unformat + (line_input, "prefix %U/%d", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &subnet_mask)) + {; + } + else if (unformat (line_input, "type ip")) + { + type = HICN_PUNT_IP_TYPE; + } + else if (unformat (line_input, "type")) + { + if (unformat (line_input, "udp4")) + { + type = HICN_PUNT_UDP4_TYPE; + } + else if (unformat (line_input, "udp6")) + { + type = HICN_PUNT_UDP6_TYPE; + } + + if (unformat (line_input, "src_port %u", &src_port)) + ; + if (unformat (line_input, "dst_port %u", &dst_port)) + ; + } + else + { + return (clib_error_return (0, "invalid option")); + } + } + + if (punting_op == HICN_MGMT_PUNTING_OP_CREATE + && (ip46_address_is_zero (&prefix) || sw_if_index == ~0)) + { + return (clib_error_return + (0, "Please specify valid prefix and interface")); + } + else if ((punting_op == HICN_MGMT_PUNTING_OP_DELETE) && + ip46_address_is_zero (&prefix)) + { + return (clib_error_return + (0, "Please specify valid prefix and optionally an interface")); + } + else if (punting_op == HICN_MGMT_PUNTING_OP_NONE) + { + return (clib_error_return + (0, "Please specify valid operation, add or delete")); + } + switch (punting_op) + { + case HICN_MGMT_PUNTING_OP_CREATE: + { + if (type == HICN_PUNT_UDP4_TYPE || type == HICN_PUNT_UDP6_TYPE) + { + if (src_port != 0 && dst_port != 0) + ret = + hicn_punt_interest_data_for_udp (vm, &prefix, subnet_mask, + sw_if_index, type, + clib_host_to_net_u16 + (src_port), + clib_host_to_net_u16 + (dst_port)); + else + return (clib_error_return + (0, + "Please specify valid source and destination udp port")); + } + else + { + ret = + hicn_punt_interest_data_for_ethernet (vm, &prefix, subnet_mask, + sw_if_index, type); + } + } + break; + case HICN_MGMT_PUNTING_OP_DELETE: + { + if (sw_if_index != ~0) + { + ip46_address_is_ip4 (&prefix) ? + hicn_punt_enable_disable_vnet_ip4_table_on_intf (vm, + sw_if_index, + 0) : + hicn_punt_enable_disable_vnet_ip6_table_on_intf (vm, + sw_if_index, + 0); + } + else if (!(ip46_address_is_zero (&prefix))) + { + ret = ip46_address_is_ip4 (&prefix) ? + hicn_punt_remove_ip4_address (vm, &(prefix.ip4), subnet_mask, 1, + sw_if_index, + 0) : + hicn_punt_remove_ip6_address (vm, (ip6_address_t *) & prefix, + subnet_mask, 1, sw_if_index, 0); + } + } + break; + default: + break; + } + + return (ret == HICN_ERROR_NONE) ? 0 : clib_error_return (0, + get_error_string + (ret)); +} + +static clib_error_t * +hicn_cli_mapme_command_fn (vlib_main_t * vm, unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + hicn_mgmt_mapme_op_e mapme_op = HICN_MGMT_MAPME_OP_NONE; + unsigned int subnet_mask = 0; + ip46_address_t prefix; + u32 sw_if_index = ~0; + int ret = 0; + vnet_main_t *vnm = NULL; + + vnm = vnet_get_main (); + + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return (0); + } + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "add")) + { + mapme_op = HICN_MGMT_MAPME_OP_CREATE; + } + else if (unformat (line_input, "delete")) + { + mapme_op = HICN_MGMT_MAPME_OP_DELETE; + } + else if (unformat (line_input, "intfc %U", + unformat_vnet_sw_interface, vnm, &sw_if_index)) + {; + } + else if (unformat + (line_input, "prefix %U/%d", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &subnet_mask)) + {; + } + else + { + return (clib_error_return (0, "invalid option")); + } + } + + if (mapme_op == HICN_MGMT_MAPME_OP_CREATE + && (ip46_address_is_zero (&prefix) || sw_if_index == ~0)) + { + return (clib_error_return + (0, "Please specify valid prefix and interface")); + } + else if ((mapme_op == HICN_MGMT_MAPME_OP_DELETE) && + ip46_address_is_zero (&prefix)) + { + return (clib_error_return + (0, "Please specify valid prefix and optionally an interface")); + } + else if (mapme_op == HICN_MGMT_MAPME_OP_NONE) + { + return (clib_error_return + (0, "Please specify valid operation, add or delete")); + } + return (ret == HICN_ERROR_NONE) ? clib_error_return (0, "Punting %s", + get_error_string (ret)) + : clib_error_return (0, get_error_string (ret)); +} + +/* + * cli handler for 'pgen' + */ +static clib_error_t * +hicn_cli_pgen_client_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + hicn_main_t *sm = &hicn_main; + hicnpg_main_t *hpgm = &hicnpg_main; + ip46_address_t src_addr, hicn_name; + vnet_main_t *vnm = vnet_get_main (); + u32 sw_if_index = ~0; + u16 lifetime = 4000; + int rv = VNET_API_ERROR_UNIMPLEMENTED; + u32 max_seq = ~0; + u32 n_flows = ~0; + u32 mask = 0; + u32 n_ifaces = 1; + u32 hicn_underneath = ~0; + + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (unformat_user (main_input, unformat_line_input, line_input)) + { + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "fwd")) + { + if (unformat (line_input, "ip")) + hicn_underneath = 0; + else if (unformat (line_input, "hicn")) + hicn_underneath = 1; + } + if (unformat + (line_input, "intfc %U", unformat_vnet_sw_interface, vnm, + &sw_if_index)) + { + ; + } + else if (unformat (line_input, "src %U", + unformat_ip46_address, &src_addr)) + { + ; + } + else if (unformat (line_input, "n_ifaces %d", &n_ifaces)) + { + ; + } + else if (unformat (line_input, "name %U/%d", + unformat_ip46_address, &hicn_name, IP46_TYPE_ANY, + &mask)) + { + ; + } + else if (unformat (line_input, "lifetime %d", &lifetime)) + { + ; + } + else if (unformat (line_input, "max_seq %d", &max_seq)) + { + ; + } + else if (unformat (line_input, "n_flows %d", &n_flows)) + { + ; + } + else + { + return (clib_error_return + (0, "Unknown input '%U'", format_unformat_error, + line_input)); + break; + } + } + } + hpgm->interest_lifetime = lifetime; + + if (sw_if_index == ~0) + { + return (clib_error_return (0, "Packet generator interface missing")); + } + if (hicn_underneath == ~0) + { + return (clib_error_return + (0, "Choose the underlying forwarder type ip|hicn")); + } + else if (hicn_underneath && !sm->is_enabled) + { + return (clib_error_return (0, "hICN not enabled in VPP")); + } + else if (!hicn_underneath && sm->is_enabled) + { + return (clib_error_return (0, "hICN enabled in VPP")); + } + + int skip = 1; + int base_offset = ETH_L2; + u8 use_current_data = HICN_CLASSIFY_NO_CURRENT_DATA_FLAG; + + if (hicn_cli_is_ip_interface (vm, vnm, sw_if_index) == IP) + { + skip = 0; + base_offset = NO_L2; + use_current_data = HICN_CLASSIFY_CURRENT_DATA_FLAG; + } + /* + * Register punting on src address generated by pg and data punting + * on the name + */ + if (ip46_address_is_ip4 (&src_addr) && ip46_address_is_ip4 (&hicn_name)) + { + /* Add data node to the vpp graph */ + u32 next_hit_node = vlib_node_add_next (vm, + hicn_punt_glb. + hicn_node_info.ip4_inacl_node_index, + hicn_pg_data_node.index); + + /* Add pgen_client node to the vpp graph */ + vlib_node_add_next (vm, + pg_input_node.index, hicn_pg_interest_node.index); + + /* Create the punting table if it does not exist */ + hicn_punt_add_vnettbl (&ipv4, &ipv4_src, mask, ~0, sw_if_index, + base_offset, use_current_data); + hicn_punt_add_vnettbl (&ipv4, &ipv4_dst, mask, + hicn_punt_glb.ip4_vnet_tbl_idx[sw_if_index][skip] + [HICN_PUNT_SRC][mask], sw_if_index, base_offset, + use_current_data); + + /* Add a session to the table */ + hicn_punt_add_vnetssn (&ipv4, &ipv4_src, + &hicn_name, mask, + next_hit_node, sw_if_index, base_offset); + + hicn_punt_add_vnetssn (&ipv4, &ipv4_src, + &hicn_name, mask, + next_hit_node, sw_if_index, base_offset); + + hicn_punt_enable_disable_vnet_ip4_table_on_intf (vm, sw_if_index, + OP_ENABLE); + + pg_node_t *pn; + pn = pg_get_node (hicn_pg_interest_node.index); + pn->unformat_edit = unformat_pg_ip4_header; + + } + else if (!ip46_address_is_ip4 (&src_addr) + && !ip46_address_is_ip4 (&hicn_name)) + { + /* Add node to the vpp graph */ + u32 next_hit_node = vlib_node_add_next (vm, + hicn_punt_glb.hicn_node_info. + ip6_inacl_node_index, + hicn_pg_data_node.index); + + /* Add pgen_client node to the vpp graph */ + vlib_node_add_next (vm, pg_input_node.index, + hicn_pg_interest_node.index); + + /* Create the punting table if it does not exist */ + hicn_punt_add_vnettbl (&ipv6, &ipv6_src, mask, ~0, sw_if_index, + base_offset, use_current_data); + hicn_punt_add_vnettbl (&ipv6, &ipv6_dst, mask, + hicn_punt_glb.ip6_vnet_tbl_idx[sw_if_index][skip] + [HICN_PUNT_SRC][mask], sw_if_index, base_offset, + use_current_data); + + /* Add a session to the table */ + hicn_punt_add_vnetssn (&ipv6, &ipv6_src, + &hicn_name, mask, + next_hit_node, sw_if_index, base_offset); + + hicn_punt_add_vnetssn (&ipv6, &ipv6_src, + &hicn_name, mask, + next_hit_node, sw_if_index, base_offset); + + hicn_punt_enable_disable_vnet_ip6_table_on_intf (vm, sw_if_index, + OP_ENABLE); + + pg_node_t *pn; + pn = pg_get_node (hicn_pg_interest_node.index); + pn->unformat_edit = unformat_pg_ip6_header; + } + else + { + return (clib_error_return + (0, + "pg interface source address, source address and hicn name must be of the same type IPv4 or IPv6")); + } + + + hpgm->pgen_clt_src_addr = src_addr; + hpgm->pgen_clt_hicn_name = hicn_name; + hpgm->max_seq_number = max_seq; + hpgm->n_flows = n_flows; + hpgm->n_ifaces = n_ifaces; + hpgm->hicn_underneath = hicn_underneath; + vlib_cli_output (vm, "ifaces %d", hpgm->n_ifaces); + rv = 0; + + switch (rv) + { + case 0: + break; + + case VNET_API_ERROR_UNIMPLEMENTED: + return clib_error_return (0, "Unimplemented, NYI"); + break; + + default: + return clib_error_return (0, "hicn enable_disable returned %d", rv); + } + + return 0; +} + +/* + * cli handler for 'pgen' + */ +static clib_error_t * +hicn_cli_pgen_server_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + clib_error_t *cl_err; + int rv = HICN_ERROR_NONE; + hicnpg_server_main_t *pg_main = &hicnpg_server_main; + hicn_main_t *sm = &hicn_main; + ip46_address_t hicn_name; + u32 subnet_mask; + int payload_size = 0; + u32 sw_if_index = ~0; + vnet_main_t *vnm = vnet_get_main (); + u32 hicn_underneath = ~0; + + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (unformat_user (main_input, unformat_line_input, line_input)) + { + /* Parse the arguments */ + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "fwd")) + { + if (unformat (line_input, "ip")) + hicn_underneath = 0; + else if (unformat (line_input, "hicn")) + hicn_underneath = 1; + } + if (unformat (line_input, "name %U/%d", + unformat_ip46_address, &hicn_name, IP46_TYPE_ANY, + &subnet_mask)) + {; + } + else if (unformat (line_input, "size %d", &payload_size)) + { + if (payload_size > 1440) + { + return (clib_error_return (0, + "Payload size must be <= 1440 bytes...")); + } + } + else + if (unformat + (line_input, "intfc %U", unformat_vnet_sw_interface, vnm, + &sw_if_index)) + { + ; + } + else + { + return (clib_error_return + (0, "Unknown input '%U'", format_unformat_error, + line_input)); + break; + } + } + } + /* Attach our packet-gen node for ip4 udp local traffic */ + if (payload_size == 0 || sw_if_index == ~0) + { + return clib_error_return (0, + "Error: must supply local port, payload size and incoming interface"); + } + if (hicn_underneath == ~0) + { + return (clib_error_return + (0, "Choose the underlying forwarder type ip|hicn")); + } + else if (hicn_underneath && !sm->is_enabled) + { + return (clib_error_return (0, "hICN not enabled in VPP")); + } + else if (!hicn_underneath && sm->is_enabled) + { + return (clib_error_return (0, "hICN enabled in VPP")); + } + pg_main->hicn_underneath = hicn_underneath; + + /* Allocate the buffer with the actual content payload TLV */ + vlib_buffer_alloc (vm, &pg_main->pgen_svr_buffer_idx, 1); + vlib_buffer_t *rb = NULL; + rb = vlib_get_buffer (vm, pg_main->pgen_svr_buffer_idx); + + /* Initialize the buffer data with zeros */ + memset (rb->data, 0, payload_size); + rb->current_length = payload_size; + + int skip = 2; + int base_offset = ETH_L2; + u8 use_current_data = HICN_CLASSIFY_NO_CURRENT_DATA_FLAG; + + if (hicn_cli_is_ip_interface (vm, vnm, sw_if_index) == IP) + { + skip = 1; + base_offset = NO_L2; + use_current_data = HICN_CLASSIFY_CURRENT_DATA_FLAG; + } + if (ip46_address_is_ip4 (&hicn_name)) + { + /* Add node to the vpp graph */ + u32 next_hit_node = vlib_node_add_next (vm, + hicn_punt_glb. + hicn_node_info.ip4_inacl_node_index, + hicn_pg_server_node.index); + + /* Create the punting table if it does not exist */ + hicn_punt_add_vnettbl (&ipv4, &ipv4_src, subnet_mask, ~0, sw_if_index, + base_offset, use_current_data); + hicn_punt_add_vnettbl (&ipv4, &ipv4_dst, subnet_mask, + hicn_punt_glb.ip4_vnet_tbl_idx[sw_if_index][skip] + [HICN_PUNT_SRC][subnet_mask - 1], sw_if_index, + base_offset, use_current_data); + + + /* Add a session to the table */ + hicn_punt_add_vnetssn (&ipv4, &ipv4_dst, + (ip46_address_t *) & (hicn_name.ip4), + subnet_mask, next_hit_node, sw_if_index, + base_offset); + + hicn_punt_enable_disable_vnet_ip4_table_on_intf (vm, sw_if_index, + OP_ENABLE); + + } + else + { + /* Add node to the vpp graph */ + u32 next_hit_node = vlib_node_add_next (vm, + hicn_punt_glb.hicn_node_info. + ip6_inacl_node_index, + hicn_pg_server_node.index); + + /* Create the punting table if it does not exist */ + hicn_punt_add_vnettbl (&ipv6, &ipv6_src, subnet_mask, ~0, sw_if_index, + base_offset, use_current_data); + hicn_punt_add_vnettbl (&ipv6, &ipv6_dst, subnet_mask, + hicn_punt_glb.ip6_vnet_tbl_idx[sw_if_index][skip] + [HICN_PUNT_SRC][subnet_mask - 1], sw_if_index, + base_offset, use_current_data); + + + /* Add a session to the table */ + hicn_punt_add_vnetssn (&ipv6, &ipv6_dst, + (ip46_address_t *) & (hicn_name.ip6), + subnet_mask, next_hit_node, sw_if_index, + base_offset); + + hicn_punt_enable_disable_vnet_ip6_table_on_intf (vm, sw_if_index, + OP_ENABLE); + } + + switch (rv) + { + case 0: + cl_err = 0; + break; + + case VNET_API_ERROR_UNIMPLEMENTED: + cl_err = clib_error_return (0, "Unimplemented, NYI"); + break; + + default: + cl_err = clib_error_return (0, "hicn pgen server returned %d", rv); + } + + return cl_err; +} + +/* cli declaration for 'control start' */ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND(hicn_cli_node_ctl_start_set_command, static)= +{ + .path = "hicn control start", + .short_help = "hicn control start", + .function = hicn_cli_node_ctl_start_set_command_fn, +}; + + +/* cli declaration for 'control stop' */ +VLIB_CLI_COMMAND(hicn_cli_node_ctl_stop_set_command, static)= +{ + .path = "hicn control stop", + .short_help = "hicn control stop", + .function = hicn_cli_node_ctl_stop_set_command_fn, +}; + + +/* cli declaration for 'control param' */ +VLIB_CLI_COMMAND(hicn_cli_node_ctl_param_set_command, static)= +{ + .path = "hicn control param", + .short_help = "hicn control param { pit { size <entries> | { dfltlife | minlife | maxlife } <seconds> } | fib size <entries> | cs {size <entries> | app <portion to reserved to app>} }\n", + .function = hicn_cli_node_ctl_param_set_command_fn, +}; + +/* cli declaration for 'control' (root path of multiple commands, for help) */ +VLIB_CLI_COMMAND(hicn_cli_node_ctl_command, static)= +{ + .path = "hicn control", + .short_help = "hicn control" +}; + +/* cli declaration for 'fib' */ +VLIB_CLI_COMMAND(hicn_cli_fib_set_command, static)= +{ + .path = "hicn fib", + .short_help = "hicn fib {{add | delete } prefix <prefix> face <faceid> }" + " | set strategy <strategy_id> prefix <prefix>", + .function = hicn_cli_fib_set_command_fn, +}; + +/* cli declaration for 'show' */ +VLIB_CLI_COMMAND(hicn_cli_show_command, static)= +{ + .path = "hicn show", + .short_help = "hicn show " + "[detail] [internal]" + "[strategies]", + .function = hicn_cli_show_command_fn, +}; + +/* cli declaration for 'punting' */ +VLIB_CLI_COMMAND(hicn_cli_punting_command, static)= +{ + .path = "hicn punting", + .short_help = "hicn punting {add|delete} prefix <ip_address/mask> intfc <interface> type <ip/udp>", + .function = hicn_cli_punting_command_fn, +}; + +VLIB_CLI_COMMAND(hicn_cli_mapme_command, static)= +{ + .path = "hicn mapme", + .short_help = "hicn mapme {enable|disable|set <param> <value>}", + .function = hicn_cli_mapme_command_fn, +}; + +/* cli declaration for 'hicn pgen client' */ +VLIB_CLI_COMMAND(hicn_cli_pgen_client_set_command, static)= +{ + .path = "hicn pgen client", + .short_help = "hicn pgen client fwd <ip|hicn> src <addr> n_ifaces <n_ifaces> name <addr/subnet> lifetime <interest-lifetime> intfc <data in-interface> max_seq <max sequence number> n_flows <number of flows>", + .long_help = "Run hicn in packet-gen client mode\n", + .function = hicn_cli_pgen_client_set_command_fn, +}; + +/* cli declaration for 'hicn pgen client' */ +VLIB_CLI_COMMAND(hicn_cli_pgen_server_set_command, static)= +{ + .path = "hicn pgen server", + .short_help = "hicn pgen server fwd <ip|hicn> name <addr/subnet> intfc <interest in-interface> size <payload_size>", + .long_help = "Run hicn in packet-gen server mode\n", + .function = hicn_cli_pgen_server_set_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/data_fwd.h b/hicn-plugin/src/data_fwd.h new file mode 100755 index 000000000..7390382ef --- /dev/null +++ b/hicn-plugin/src/data_fwd.h @@ -0,0 +1,209 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_DATA_FWD_H__ +#define __HICN_DATA_FWD_H__ + +#include <vlib/buffer.h> + +#include "pcs.h" + +/* + * Node context data; we think this is per-thread/instance + */ +typedef struct hicn_data_fwd_runtime_s +{ + vlib_combined_counter_main_t repm_counters; + + /* per-cpu vector of cloned packets */ + u32 **clones; +} hicn_data_fwd_runtime_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; + u8 packet_data[64]; +} hicn_data_fwd_trace_t; + +typedef enum +{ + HICN_DATA_FWD_NEXT_V4_LOOKUP, + HICN_DATA_FWD_NEXT_V6_LOOKUP, + HICN_DATA_FWD_NEXT_ERROR_DROP, + HICN_DATA_FWD_N_NEXT, +} hicn_data_fwd_next_t; + +/** + *@brief Create a maximum of 256 clones of buffer and store them + * in the supplied array. Unlike the original function in the vlib + * library, we don't prevent cloning if n_buffer==1 and if + * s->current_length <= head_end_offset + CLIB_CACHE_LINE_BYTES * 2. + * + * @param vm - (vlib_main_t *) vlib main data structure pointer + * @param src_buffer - (u32) source buffer index + * @param buffers - (u32 * ) buffer index array + * @param n_buffers - (u16) number of buffer clones requested (<=256) + * @param head_end_offset - (u16) offset relative to current position + * where packet head ends + * @return - (u16) number of buffers actually cloned, may be + * less than the number requested or zero + */ +always_inline u16 +vlib_buffer_clone_256_2 (vlib_main_t * vm, u32 src_buffer, u32 * buffers, + u16 n_buffers, u16 head_end_offset) +{ + u16 i; + vlib_buffer_t *s = vlib_get_buffer (vm, src_buffer); + + ASSERT (n_buffers); + ASSERT (n_buffers <= 256); + + if (s->current_length <= CLIB_CACHE_LINE_BYTES * 2) + { + for (i = 0; i < n_buffers; i++) + { + vlib_buffer_t *d; + d = vlib_buffer_copy (vm, s); + clib_memcpy (d->opaque2, s->opaque2, sizeof (s->opaque2)); + if (d == 0) + return i; + buffers[i] = vlib_get_buffer_index (vm, d); + } + s->current_data += head_end_offset; + s->current_length -= head_end_offset; + return n_buffers; + } + n_buffers = vlib_buffer_alloc_from_free_list (vm, buffers, n_buffers, + vlib_buffer_get_free_list_index + (s)); + + for (i = 0; i < n_buffers; i++) + { + vlib_buffer_t *d = vlib_get_buffer (vm, buffers[i]); + d->current_data = s->current_data; + d->current_length = head_end_offset; + d->trace_index = s->trace_index; + vlib_buffer_set_free_list_index (d, + vlib_buffer_get_free_list_index (s)); + + d->total_length_not_including_first_buffer = s->current_length - + head_end_offset; + if (PREDICT_FALSE (s->flags & VLIB_BUFFER_NEXT_PRESENT)) + { + d->total_length_not_including_first_buffer += + s->total_length_not_including_first_buffer; + } + d->flags = s->flags | VLIB_BUFFER_NEXT_PRESENT; + d->flags &= ~VLIB_BUFFER_EXT_HDR_VALID; + clib_memcpy (d->opaque, s->opaque, sizeof (s->opaque)); + clib_memcpy (d->opaque2, s->opaque2, sizeof (s->opaque2)); + clib_memcpy (vlib_buffer_get_current (d), vlib_buffer_get_current (s), + head_end_offset); + d->next_buffer = src_buffer; + } + vlib_buffer_advance (s, head_end_offset); + s->n_add_refs = n_buffers - 1; + while (s->flags & VLIB_BUFFER_NEXT_PRESENT) + { + s = vlib_get_buffer (vm, s->next_buffer); + s->n_add_refs = n_buffers - 1; + } + + return n_buffers; +} + +/** + * @brief Create multiple clones of buffer and store them + * in the supplied array. Unlike the function in the vlib library, + * we allow src_buffer to have n_add_refs != 0. + * + * @param vm - (vlib_main_t *) vlib main data structure pointer + * @param src_buffer - (u32) source buffer index + * @param buffers - (u32 * ) buffer index array + * @param n_buffers - (u16) number of buffer clones requested (<=256) + * @param head_end_offset - (u16) offset relative to current position + * where packet head ends + * @return - (u16) number of buffers actually cloned, may be + * less than the number requested or zero + */ +always_inline u16 +vlib_buffer_clone2 (vlib_main_t * vm, u32 src_buffer, u32 * buffers, + u16 n_buffers, u16 head_end_offset) +{ + ASSERT (head_end_offset >= VLIB_BUFFER_MIN_CHAIN_SEG_SIZE); + + vlib_buffer_t *s = vlib_get_buffer (vm, src_buffer); + + /* + * total_length_not_including_first_buffer is not initialized to 0 + * when a buffer is used. + */ + if (PREDICT_TRUE (s->next_buffer == 0)) + s->total_length_not_including_first_buffer = 0; + + u16 n_cloned = 0; + u8 n_clone_src = 255 - s->n_add_refs; + + /* + * We need to copy src for all the clones that cannot be chained in + * the src_buffer + */ + /* MAX(n_add_refs) = 256 */ + if (n_buffers > n_clone_src) + { + vlib_buffer_t *copy; + /* Ok to call the original vlib_buffer_copy. */ + copy = vlib_buffer_copy (vm, s); + n_cloned += vlib_buffer_clone (vm, + vlib_get_buffer_index (vm, copy), + buffers, + n_buffers - n_clone_src, + head_end_offset); + n_buffers -= n_cloned; + } + /* + * vlib_buffer_clone_256 check if n_add_refs is 0. We force it to be + * 0 before calling the function and we retore it to the right value + * after the function has been called + */ + u8 tmp_n_add_refs = s->n_add_refs; + + s->n_add_refs = 0; + /* + * The regular vlib_buffer_clone_256 does copy if we need to clone + * only one packet. While this is not a problem per se, it adds + * complexity to the code, especially because we need to add 1 to + * n_add_refs when the packet is cloned. + */ + n_cloned += vlib_buffer_clone_256_2 (vm, + src_buffer, + (buffers + n_cloned), + n_buffers, head_end_offset); + + s->n_add_refs += tmp_n_add_refs; + + return n_cloned; +} + +#endif /* //__HICN_DATA_FWD_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/data_fwd_node.c b/hicn-plugin/src/data_fwd_node.c new file mode 100755 index 000000000..088683fe0 --- /dev/null +++ b/hicn-plugin/src/data_fwd_node.c @@ -0,0 +1,541 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/dpo/dpo.h> + +#include "data_fwd.h" +#include "mgmt.h" +#include "parser.h" +#include "infra.h" +#include "strategy.h" +#include "strategy_dpo_manager.h" +#include "state.h" +#include "error.h" + +/* Stats string values */ +static char *hicn_data_fwd_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* Declarations */ +always_inline void +drop_packet (vlib_main_t * vm, u32 bi0, + u32 * n_left_to_next, u32 * next0, u32 ** to_next, + u32 * next_index, vlib_node_runtime_t * node); + +always_inline int +hicn_satisfy_faces (vlib_main_t * vm, u32 b0, + hicn_pcs_entry_t * pitp, u32 * n_left_to_next, + u32 ** to_next, u32 * next_index, + vlib_node_runtime_t * node, u8 isv6, + vl_api_hicn_api_node_stats_get_reply_t * stats); + +always_inline void +clone_data_to_cs (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * pitp, hicn_header_t * hicn0, f64 tnow, + hicn_hash_node_t * nodep, vlib_buffer_t * b0, + hicn_hash_entry_t * hash_entry, u64 name_hash, + hicn_buffer_t * hicnb, const hicn_dpo_vft_t * dpo_vft, + dpo_id_t * hicn_dpo_id); + + +/* packet trace format function */ +always_inline u8 *hicn_data_fwd_format_trace (u8 * s, va_list * args); + +vlib_node_registration_t hicn_data_fwd_node; + +/* + * ICN forwarder node for interests: handling of Data delivered based on ACL. + * - 1 packet at a time - ipv4/tcp ipv6/tcp + */ +static uword +hicn_data_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + + u32 n_left_from, *from, *to_next; + hicn_data_fwd_next_t next_index; + hicn_pit_cs_t *pitcs = &hicn_main.pitcs; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + f64 tnow; + u32 data_received = 1; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + /* Capture time in vpp terms */ + tnow = vlib_time_now (vm); + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + vlib_buffer_t *b0; + u8 isv6; + u8 *nameptr; + u16 namelen; + u32 bi0; + u32 next0 = HICN_DATA_FWD_NEXT_ERROR_DROP; + hicn_name_t name; + hicn_header_t *hicn0; + hicn_buffer_t *hicnb0; + hicn_hash_node_t *node0; + const hicn_strategy_vft_t *strategy_vft0; + const hicn_dpo_vft_t *dpo_vft0; + u8 dpo_ctx_id0; + hicn_pcs_entry_t *pitp; + hicn_hash_entry_t *hash_entry0; + int ret = HICN_ERROR_NONE; + + /* Prefetch for next iteration. */ + if (n_left_from > 1) + { + vlib_buffer_t *b1; + b1 = vlib_get_buffer (vm, from[1]); + CLIB_PREFETCH (b1, 2 * CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, STORE); + + /* HICN PREFETCH */ + hicn_buffer_t *hicnb1 = hicn_get_buffer (b1); + hicn_prefetch_pcs_entry (hicnb1, pitcs); + } + /* Dequeue a packet buffer */ + /* + * Do not copy the index in the next buffer, we'll do + * it later. The packet might be cloned, so the buffer to move + * to next must be the cloned one + */ + bi0 = from[0]; + from += 1; + n_left_from -= 1; + + b0 = vlib_get_buffer (vm, bi0); + + /* Get hicn buffer and state */ + hicnb0 = hicn_get_buffer (b0); + hicn_get_internal_state (hicnb0, pitcs, &node0, &strategy_vft0, + &dpo_vft0, &dpo_ctx_id0, &hash_entry0); + + ret = hicn_data_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); + pitp = hicn_pit_get_data (node0); + nameptr = (u8 *) (&name); + + if (PREDICT_FALSE + (ret != HICN_ERROR_NONE + || !hicn_node_compare (nameptr, namelen, node0) + || (hash_entry0->he_flags & HICN_HASH_ENTRY_FLAG_CS_ENTRY))) + { + /* + * Remove the lock acquired from + * data_pcslookup node + */ + dpo_id_t hicn_dpo_id0 = { dpo_vft0->hicn_dpo_get_type (), 0, 0, + dpo_ctx_id0 + }; + hicn_pcs_remove_lock (pitcs, &pitp, &node0, vm, + hash_entry0, dpo_vft0, &hicn_dpo_id0); + + drop_packet (vm, bi0, &n_left_to_next, &next0, &to_next, + &next_index, node); + + goto end_processing; + } + /* + * Check if the hit is instead a collision in the + * hash table. Unlikely to happen. + */ + /* + * there is no guarantee that the type of entry has + * not changed from the lookup. + */ + + if (tnow > pitp->shared.expire_time) + { + dpo_id_t hicn_dpo_id0 = + { dpo_vft0->hicn_dpo_get_type (), 0, 0, dpo_ctx_id0 }; + hicn_pcs_delete (pitcs, &pitp, &node0, vm, hash_entry0, + dpo_vft0, &hicn_dpo_id0); + + drop_packet (vm, bi0, &n_left_to_next, &next0, &to_next, + &next_index, node); + stats.pit_expired_count++; + } + else + { + ASSERT ((hash_entry0->he_flags & HICN_HASH_ENTRY_FLAG_DELETED) + == 0); + + data_received++; + /* + * We do not check if the data is coming from + * the outgoing interest face. + */ + + /* Prepare the buffer for the cloning */ + ret = hicn_satisfy_faces (vm, bi0, pitp, &n_left_to_next, + &to_next, &next_index, node, + isv6, &stats); + + dpo_id_t hicn_dpo_id0 = { dpo_vft0->hicn_dpo_get_type (), 0, 0, + dpo_ctx_id0 + }; + + if (PREDICT_FALSE (ret != HICN_ERROR_NONE)) + { + hicn_pcs_pit_delete (pitcs, &pitp, &node0, vm, + hash_entry0, dpo_vft0, &hicn_dpo_id0); + continue; + } + /* + * Call the strategy callback since the + * interest has been satisfied + */ + strategy_vft0->hicn_receive_data (dpo_ctx_id0, + pitp->u.pit.pe_txnh); + +#if HICN_FEATURE_CS + /* + * Clone data packet in the content store and + * convert the PIT entry into a CS entry + */ + clone_data_to_cs (vm, pitcs, pitp, hicn0, tnow, node0, + b0, hash_entry0, hicnb0->name_hash, hicnb0, + dpo_vft0, &hicn_dpo_id0); + + hicn_pcs_remove_lock (pitcs, &pitp, &node0, vm, + hash_entry0, NULL, NULL); +#else + ASSERT (pitp == hicn_pit_get_data (node0)); + /* + * Remove one reference as the buffer is no + * longer in any frame + */ + b0->n_add_refs--; + /* If not enabled, delete the PIT entry */ + hicn_pcs_pit_delete (pitcs, &pitp, &node0, vm, + hash_entry0, dpo_vft0, &hicn_dpo_id0); +#endif + } + end_processing: + + /* Incr packet counter */ + stats.pkts_processed += 1; + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + u32 pit_int_count = hicn_pit_get_int_count (pitcs); + u32 pit_cs_count = hicn_pit_get_cs_count (pitcs); + + vlib_node_increment_counter (vm, hicn_data_fwd_node.index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + + update_node_counter (vm, hicn_data_fwd_node.index, + HICNFWD_ERROR_INT_COUNT, pit_int_count); + update_node_counter (vm, hicn_data_fwd_node.index, + HICNFWD_ERROR_CS_COUNT, pit_cs_count); + update_node_counter (vm, hicn_data_fwd_node.index, + HICNFWD_ERROR_INTEREST_AGG_ENTRY, + stats.pkts_data_count / data_received); + + return (frame->n_vectors); +} + +always_inline void +drop_packet (vlib_main_t * vm, u32 bi0, + u32 * n_left_to_next, u32 * next0, u32 ** to_next, + u32 * next_index, vlib_node_runtime_t * node) +{ + *next0 = HICN_DATA_FWD_NEXT_ERROR_DROP; + + (*to_next)[0] = bi0; + *to_next += 1; + *n_left_to_next -= 1; + + vlib_validate_buffer_enqueue_x1 (vm, node, *next_index, + *to_next, *n_left_to_next, bi0, *next0); +} + +always_inline int +hicn_satisfy_faces (vlib_main_t * vm, u32 bi0, + hicn_pcs_entry_t * pitp, u32 * n_left_to_next, + u32 ** to_next, u32 * next_index, + vlib_node_runtime_t * node, u8 isv6, + vl_api_hicn_api_node_stats_get_reply_t * stats) +{ + int found = 0; + int ret = HICN_ERROR_NONE; + u32 *clones = NULL, *header = NULL; + u32 n_left_from = 0; + u32 next0 = HICN_DATA_FWD_NEXT_ERROR_DROP, next1 = + HICN_DATA_FWD_NEXT_ERROR_DROP; + + /* + * We have a hard limit on the number of vlib_buffer that we can + * chain (no more than 256) + */ + /* + * The first group of vlib_buffer can be directly cloned from b0. We + * need to be careful to clone it only 254 times as the buffer + * already has n_add_reds=1. + */ + vec_alloc (clones, pitp->u.pit.faces.n_faces); + header = clones; + + /* Clone bi0 */ + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); + + /* Add one reference to maintain the buffer in the CS */ + b0->n_add_refs++; + found = n_left_from = + vlib_buffer_clone2 (vm, bi0, clones, pitp->u.pit.faces.n_faces, + VLIB_BUFFER_MIN_CHAIN_SEG_SIZE); + + ASSERT (n_left_from == pitp->u.pit.faces.n_faces); + + /* Index to iterate over the faces */ + int i = 0; + + while (n_left_from > 0) + { + + //Dual loop, X2 + while (n_left_from >= 4 && *n_left_to_next >= 2) + { + vlib_buffer_t *h0, *h1; + u32 hi0, hi1; + dpo_id_t *face0, *face1; + + /* Prefetch for next iteration. */ + { + vlib_buffer_t *h2, *h3; + h2 = vlib_get_buffer (vm, clones[2]); + h3 = vlib_get_buffer (vm, clones[3]); + CLIB_PREFETCH (h2, 2 * CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (h3, 2 * CLIB_CACHE_LINE_BYTES, STORE); + } + + face0 = hicn_face_db_get_dpo_face (i++, &pitp->u.pit.faces); + face1 = hicn_face_db_get_dpo_face (i++, &pitp->u.pit.faces); + + h0 = vlib_get_buffer (vm, clones[0]); + h1 = vlib_get_buffer (vm, clones[1]); + + (*to_next)[0] = hi0 = clones[0]; + (*to_next)[1] = hi1 = clones[1]; + *to_next += 2; + *n_left_to_next -= 2; + n_left_from -= 2; + clones += 2; + + next0 = face0->dpoi_next_node; + next1 = face1->dpoi_next_node; + vnet_buffer (h0)->ip.adj_index[VLIB_TX] = face0->dpoi_index; + vnet_buffer (h1)->ip.adj_index[VLIB_TX] = face1->dpoi_index; + + stats->pkts_data_count += 2; + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (h0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_data_fwd_trace_t *t = + vlib_add_trace (vm, node, h0, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_CONTENT; + t->sw_if_index = vnet_buffer (h0)->sw_if_index[VLIB_RX]; + t->next_index = next0; + clib_memcpy (t->packet_data, + vlib_buffer_get_current (h0), + sizeof (t->packet_data)); + } + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (h1->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_data_fwd_trace_t *t = + vlib_add_trace (vm, node, h1, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_CONTENT; + t->sw_if_index = vnet_buffer (h1)->sw_if_index[VLIB_RX]; + t->next_index = next1; + clib_memcpy (t->packet_data, + vlib_buffer_get_current (h1), + sizeof (t->packet_data)); + } + vlib_validate_buffer_enqueue_x2 (vm, node, *next_index, + *to_next, *n_left_to_next, + hi0, hi1, next0, next1); + } + + + while (n_left_from > 0 && *n_left_to_next > 0) + { + vlib_buffer_t *h0; + u32 hi0; + dpo_id_t *face0; + + face0 = hicn_face_db_get_dpo_face (i++, &pitp->u.pit.faces); + + h0 = vlib_get_buffer (vm, clones[0]); + + (*to_next)[0] = hi0 = clones[0]; + *to_next += 1; + *n_left_to_next -= 1; + n_left_from -= 1; + clones += 1; + next0 = face0->dpoi_next_node; + vnet_buffer (h0)->ip.adj_index[VLIB_TX] = face0->dpoi_index; + + stats->pkts_data_count++; + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (h0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_data_fwd_trace_t *t = + vlib_add_trace (vm, node, h0, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_CONTENT; + t->sw_if_index = vnet_buffer (h0)->sw_if_index[VLIB_RX]; + t->next_index = next0; + clib_memcpy (t->packet_data, + vlib_buffer_get_current (h0), + sizeof (t->packet_data)); + } + /* + * Verify speculative enqueue, maybe switch current + * next frame + */ + /* + * Fix in case of a wrong speculation. Needed to + * clone the data in the right frame + */ + vlib_validate_buffer_enqueue_x1 (vm, node, *next_index, + *to_next, *n_left_to_next, + hi0, next0); + + } + + /* Ensure that there is space for the next clone (if any) */ + if (PREDICT_FALSE (*n_left_to_next == 0)) + { + vlib_put_next_frame (vm, node, *next_index, *n_left_to_next); + + vlib_get_next_frame (vm, node, *next_index, *to_next, + *n_left_to_next); + } + } + + + vec_free (header); + + if (PREDICT_FALSE (!found)) + { + ASSERT (0); + drop_packet (vm, bi0, n_left_to_next, &next0, to_next, next_index, + node); + ret = HICN_ERROR_FACE_NOT_FOUND; + } + return ret; +} + +always_inline void +clone_data_to_cs (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * pitp, hicn_header_t * hicn0, f64 tnow, + hicn_hash_node_t * nodep, vlib_buffer_t * b0, + hicn_hash_entry_t * hash_entry, u64 name_hash, + hicn_buffer_t * hicnb, const hicn_dpo_vft_t * dpo_vft, + dpo_id_t * hicn_dpo_id) +{ + hicn_lifetime_t dmsg_lifetime; + /* + * At this point we think we're safe to proceed. Store the CS buf in + * the PIT/CS hashtable entry + */ + + /* + * Start turning the PIT into a CS. Note that we may be stepping on + * the PIT part of the union as we update the CS part, so don't + * expect the PIT part to be valid after this point. + */ + hicn_buffer_t *hicnb0 = hicn_get_buffer (b0); + hicn_pit_to_cs (vm, pitcs, pitp, hash_entry, nodep, dpo_vft, hicn_dpo_id, + &hicnb->face_dpo_id, hicnb0->is_appface); + + pitp->shared.create_time = tnow; + + hicn_type_t type = hicnb0->type; + hicn_ops_vft[type.l1]->get_lifetime (type, &hicn0->protocol, + &dmsg_lifetime); + + if (dmsg_lifetime < HICN_PARAM_CS_LIFETIME_MIN + || dmsg_lifetime > HICN_PARAM_CS_LIFETIME_MAX) + { + dmsg_lifetime = HICN_PARAM_CS_LIFETIME_DFLT; + } + pitp->shared.expire_time = hicn_pcs_get_exp_time (tnow, dmsg_lifetime); + + /* Store the original packet buffer in the CS node */ + pitp->u.cs.cs_pkt_buf = vlib_get_buffer_index (vm, b0); +} + +/* packet trace format function */ +always_inline u8 * +hicn_data_fwd_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_data_fwd_trace_t *t = va_arg (*args, hicn_data_fwd_trace_t *); + u32 indent = format_get_indent (s); + + s = format (s, "DATAFWD: pkt: %d, sw_if_index %d, next index %d\n", + (int) t->pkt_type, t->sw_if_index, t->next_index); + + s = format (s, "%U%U", format_white_space, indent, + format_ip6_header, t->packet_data, sizeof (t->packet_data)); + return (s); +} + +/* + * Node registration for the data forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_data_fwd_node) = +{ + .function = hicn_data_node_fn, + .name = "hicn-data-fwd", + .vector_size = sizeof(u32), + .runtime_data_bytes = sizeof(hicn_data_fwd_runtime_t), + .format_trace = hicn_data_fwd_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_data_fwd_error_strings), + .error_strings = hicn_data_fwd_error_strings, + .n_next_nodes = HICN_DATA_FWD_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = { + [HICN_DATA_FWD_NEXT_V4_LOOKUP] = "ip4-lookup", + [HICN_DATA_FWD_NEXT_V6_LOOKUP] = "ip6-lookup", + [HICN_DATA_FWD_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/data_pcslookup.h b/hicn-plugin/src/data_pcslookup.h new file mode 100755 index 000000000..fa75c3ac3 --- /dev/null +++ b/hicn-plugin/src/data_pcslookup.h @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_DATA_PCSLOOKUP_H__ +#define __HICN_DATA_PCSLOOKUP_H__ + +#include "pcs.h" + +/* + * Node context data; we think this is per-thread/instance + */ +typedef struct hicn_data_pcslookup_runtime_s +{ + int id; + hicn_pit_cs_t *pitcs; +} hicn_data_pcslookup_runtime_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_data_pcslookup_trace_t; + +typedef enum +{ + HICN_DATA_PCSLOOKUP_NEXT_V4_LOOKUP, + HICN_DATA_PCSLOOKUP_NEXT_V6_LOOKUP, + HICN_DATA_PCSLOOKUP_NEXT_STORE_DATA, + HICN_DATA_PCSLOOKUP_NEXT_DATA_FWD, /* This must be one position + * before the error drop!! */ + HICN_DATA_PCSLOOKUP_NEXT_ERROR_DROP, + HICN_DATA_PCSLOOKUP_N_NEXT, +} hicn_data_pcslookup_next_t; + +#endif /* //__HICN_DATA_PCSLOOKUP_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/data_pcslookup_node.c b/hicn-plugin/src/data_pcslookup_node.c new file mode 100755 index 000000000..222545106 --- /dev/null +++ b/hicn-plugin/src/data_pcslookup_node.c @@ -0,0 +1,246 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "data_pcslookup.h" +#include "mgmt.h" +#include "parser.h" +#include "infra.h" +#include "strategy.h" +#include "strategy_dpo_manager.h" +#include "state.h" + +/* Stats string values */ +static char *hicn_data_pcslookup_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* packet trace format function */ +always_inline u8 *hicn_data_pcslookup_format_trace (u8 * s, va_list * args); + +vlib_node_registration_t hicn_data_pcslookup_node; + +/* + * hICN node for handling data. It performs a lookup in the PIT. + */ +static uword +hicn_data_pcslookup_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + + u32 n_left_from, *from, *to_next; + hicn_data_pcslookup_next_t next_index; + hicn_data_pcslookup_runtime_t *rt; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + rt = vlib_node_get_runtime_data (vm, node->node_index); + + if (PREDICT_FALSE (rt->pitcs == NULL)) + { + rt->pitcs = &hicn_main.pitcs; + } + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + vlib_buffer_t *b0; + hicn_buffer_t *hb0; + u8 isv6; + u8 *nameptr; + u16 namelen; + u32 bi0; + u32 next0 = HICN_DATA_PCSLOOKUP_NEXT_ERROR_DROP; + u64 name_hash = 0; + hicn_name_t name; + hicn_header_t *hicn0; + u32 node_id0 = 0; + u8 dpo_ctx_id0 = 0; + int ret0; + u8 vft_id0; + u8 is_cs0; + u8 hash_entry_id = 0; + u8 bucket_is_overflown = 0; + u32 bucket_id = ~0; + + /* Prefetch for next iteration. */ + if (n_left_from > 1) + { + vlib_buffer_t *b1; + b1 = vlib_get_buffer (vm, from[1]); + //Prefetch one cache line-- 64 byte-- so that we load the hicn_buffer_t as well + CLIB_PREFETCH (b1, 2 * CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, LOAD); + } + /* Dequeue a packet buffer */ + bi0 = from[0]; + from += 1; + n_left_from -= 1; + to_next[0] = bi0; + to_next += 1; + n_left_to_next -= 1; + + + b0 = vlib_get_buffer (vm, bi0); + hb0 = hicn_get_buffer (b0); + + /* Incr packet counter */ + stats.pkts_processed += 1; + + ret0 = hicn_data_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); + + if (PREDICT_TRUE (ret0 == HICN_ERROR_NONE)) + { + next0 = + isv6 ? HICN_DATA_PCSLOOKUP_NEXT_V6_LOOKUP : + HICN_DATA_PCSLOOKUP_NEXT_V4_LOOKUP; + } + nameptr = (u8 *) (&name); + if (PREDICT_FALSE + (ret0 != HICN_ERROR_NONE + || hicn_hashtb_fullhash (nameptr, namelen, + &name_hash) != HICN_ERROR_NONE)) + { + next0 = HICN_DATA_PCSLOOKUP_NEXT_ERROR_DROP; + } + else + { + int res = + hicn_hashtb_lookup_node (rt->pitcs->pcs_table, nameptr, + namelen, name_hash, + !(hb0->is_appface) /* take lock */ , + &node_id0, &dpo_ctx_id0, &vft_id0, + &is_cs0, + &hash_entry_id, &bucket_id, + &bucket_is_overflown); + + stats.pkts_data_count += 1; + + if ((res == HICN_ERROR_HASHTB_HASH_NOT_FOUND + || (res == HICN_ERROR_NONE && is_cs0)) + && (hb0->is_appface)) + { + next0 = HICN_DATA_PCSLOOKUP_NEXT_STORE_DATA; + } + else if (res == HICN_ERROR_NONE) + { + /* + * In case the result of the lookup + * is a CS entry, the packet is + * dropped + */ + next0 = HICN_DATA_PCSLOOKUP_NEXT_DATA_FWD + is_cs0; + } + } + + hicn_store_internal_state (b0, name_hash, node_id0, dpo_ctx_id0, + vft_id0, hash_entry_id, bucket_id, + bucket_is_overflown); + + /* + * Verify speculative enqueue, maybe switch current + * next frame + */ + /* + * Fix in case of a wrong speculation. Needed to + * clone the data in the right frame + */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + + /* Maybe trace */ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_data_pcslookup_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_CONTENT; + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + t->next_index = next0; + } + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + /* Check the CS LRU, and trim if necessary. */ + u32 pit_int_count = hicn_pit_get_int_count (rt->pitcs); + u32 pit_cs_count = hicn_pit_get_cs_count (rt->pitcs); + + vlib_node_increment_counter (vm, hicn_data_pcslookup_node.index, + HICNFWD_ERROR_PROCESSED, stats.pkts_processed); + + vlib_node_increment_counter (vm, hicn_data_pcslookup_node.index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + update_node_counter (vm, hicn_data_pcslookup_node.index, + HICNFWD_ERROR_INT_COUNT, pit_int_count); + update_node_counter (vm, hicn_data_pcslookup_node.index, + HICNFWD_ERROR_CS_COUNT, pit_cs_count); + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_data_pcslookup_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_data_pcslookup_trace_t *t = + va_arg (*args, hicn_data_pcslookup_trace_t *); + + s = format (s, "DATA-PCSLOOKUP: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + + +/* + * Node registration for the data forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_data_pcslookup_node) = +{ + .function = hicn_data_pcslookup_node_fn, + .name = "hicn-data-pcslookup", + .vector_size = sizeof (u32), + .runtime_data_bytes = sizeof (hicn_data_pcslookup_runtime_t), + .format_trace = hicn_data_pcslookup_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_data_pcslookup_error_strings), + .error_strings = hicn_data_pcslookup_error_strings, + .n_next_nodes = HICN_DATA_PCSLOOKUP_N_NEXT, + .next_nodes = + { + [HICN_DATA_PCSLOOKUP_NEXT_V4_LOOKUP] = "ip4-lookup", + [HICN_DATA_PCSLOOKUP_NEXT_V6_LOOKUP] = "ip6-lookup", + [HICN_DATA_PCSLOOKUP_NEXT_STORE_DATA] = "hicn-data-push", + [HICN_DATA_PCSLOOKUP_NEXT_DATA_FWD] = "hicn-data-fwd", + [HICN_DATA_PCSLOOKUP_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/data_push_node.c b/hicn-plugin/src/data_push_node.c new file mode 100755 index 000000000..a4a25e29b --- /dev/null +++ b/hicn-plugin/src/data_push_node.c @@ -0,0 +1,349 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "hicn.h" +#include "parser.h" +#include "strategy_dpo_ctx.h" +#include "infra.h" +#include "mgmt.h" +#include "pcs.h" + +/* + * Node context data (to be used in all the strategy nodes); we think this is + * per-thread/instance + */ +typedef struct hicn_data_push_runtime_s +{ + int id; + hicn_pit_cs_t *pitcs; +} hicn_data_push_runtime_t; + +/* Stats string values */ +static char *hicn_data_push_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +typedef enum +{ + HICN_DATA_PUSH_NEXT_ERROR_DROP, + HICN_DATA_PUSH_N_NEXT, +} hicn_data_push_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; + u8 packet_data[40]; +} hicn_data_push_trace_t; + +vlib_node_registration_t hicn_data_push_node; + +always_inline void +prep_buffer_for_cs (vlib_main_t * vm, vlib_buffer_t * b0, u8 isv6) +{ + if (isv6) + { + /* Advance the vlib buffer to the beginning of the TCP header */ + vlib_buffer_advance (b0, sizeof (ip6_header_t) + sizeof (tcp_header_t)); + b0->total_length_not_including_first_buffer = 0; + } + else + { + /* Advance the vlib buffer to the beginning of the TCP header */ + vlib_buffer_advance (b0, sizeof (ip4_header_t) + sizeof (tcp_header_t)); + b0->total_length_not_including_first_buffer = 0; + } +} + +always_inline int +hicn_new_data (vlib_main_t * vm, hicn_data_push_runtime_t * rt, + vlib_buffer_t * b0, u32 * next, f64 tnow, u8 * nameptr, + u16 namelen, u8 isv6) +{ + int ret; + hicn_hash_node_t *nodep; + hicn_pcs_entry_t *pitp; + hicn_header_t *hicn0; + hicn_buffer_t *hicnb0 = hicn_get_buffer (b0); + u32 node_id0 = 0; + u8 dpo_ctx_id0 = 0; + u8 vft_id0 = 0; + u8 is_cs0 = 0; + u8 hash_entry_id = 0; + u32 bucket_id = ~0; + u8 bucket_is_overflow = 0; + hicn_lifetime_t dmsg_lifetime; + + /* Create PIT node and init PIT entry */ + nodep = hicn_hashtb_alloc_node (rt->pitcs->pcs_table); + if (PREDICT_FALSE (nodep == NULL)) + { + /* Nothing we can do - no mem */ + *next = HICN_DATA_PUSH_NEXT_ERROR_DROP; + return HICN_ERROR_HASHTB_NOMEM; + } + pitp = hicn_pit_get_data (nodep); + hicn_pit_init_data (pitp); + pitp->shared.create_time = tnow; + + hicn0 = vlib_buffer_get_current (b0); + + hicn_type_t type = hicnb0->type; + hicn_ops_vft[type.l1]->get_lifetime (type, &hicn0->protocol, + &dmsg_lifetime); + + if (dmsg_lifetime < HICN_PARAM_CS_LIFETIME_MIN + || dmsg_lifetime > HICN_PARAM_CS_LIFETIME_MAX) + { + dmsg_lifetime = HICN_PARAM_CS_LIFETIME_DFLT; + } + pitp->shared.expire_time = hicn_pcs_get_exp_time (tnow, dmsg_lifetime); + prep_buffer_for_cs (vm, b0, isv6); + + /* Store the original packet buffer in the CS node */ + pitp->u.cs.cs_pkt_buf = vlib_get_buffer_index (vm, b0); + + pitp->u.cs.cs_rxface = hicnb0->face_dpo_id; + + /* Set up the hash node and insert it */ + hicn_hashtb_init_node (rt->pitcs->pcs_table, nodep, nameptr, namelen); + + + nodep->hn_flags |= HICN_HASH_NODE_CS_FLAGS; + pitp->shared.entry_flags |= HICN_PCS_ENTRY_CS_FLAG; + + hicn_hash_entry_t *hash_entry; + ret = + hicn_pcs_cs_insert_update (vm, rt->pitcs, pitp, nodep, &hash_entry, + hicnb0->name_hash, &node_id0, &dpo_ctx_id0, + &vft_id0, &is_cs0, &hash_entry_id, &bucket_id, + &bucket_is_overflow); + + hash_entry->he_flags |= HICN_HASH_ENTRY_FLAG_CS_ENTRY; + if (ret != HICN_ERROR_NONE) + { + hicn_hashtb_free_node (rt->pitcs->pcs_table, nodep); + } + return (ret); + +} + +/* + * ICN strategy later node for interests: - 1 packet at a time - ipv4/tcp + * ipv6/tcp + */ +uword +hicn_data_push_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + + u32 n_left_from, *from, *to_next, n_left_to_next; + hicn_data_push_next_t next_index; + hicn_data_push_runtime_t *rt; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + f64 tnow; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = (hicn_data_push_next_t) node->cached_next_index; + rt = vlib_node_get_runtime_data (vm, hicn_data_push_node.index); + rt->pitcs = &hicn_main.pitcs; + /* Capture time in vpp terms */ + tnow = vlib_time_now (vm); + + while (n_left_from > 0) + { + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + u8 isv6_0, isv6_1; + u8 *nameptr0, *nameptr1; + u16 namelen0, namelen1; + hicn_name_t name0, name1; + hicn_header_t *hicn0, *hicn1; + vlib_buffer_t *b0, *b1; + u32 bi0, bi1; + u32 next0 = next_index, next1 = next_index; + int ret0, ret1; + + /* Prefetch for next iteration. */ + { + vlib_buffer_t *b2, *b3; + b2 = vlib_get_buffer (vm, from[2]); + b3 = vlib_get_buffer (vm, from[3]); + CLIB_PREFETCH (b2, 2 * CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (b3, 2 * CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES, STORE); + } + + /* Dequeue a packet buffer */ + bi0 = from[0]; + bi1 = from[1]; + from += 2; + n_left_from -= 2; + /* to_next[0] = bi0; */ + /* to_next[1] = bi1; */ + /* to_next += 2; */ + /* n_left_to_next -= 2; */ + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + next0 = next1 = HICN_DATA_PUSH_NEXT_ERROR_DROP; + + ret0 = hicn_data_parse_pkt (b0, &name0, &namelen0, &hicn0, &isv6_0); + ret1 = hicn_data_parse_pkt (b1, &name1, &namelen1, &hicn1, &isv6_1); + + nameptr0 = (u8 *) (&name0); + nameptr1 = (u8 *) (&name1); + if (PREDICT_TRUE (ret0 == HICN_ERROR_NONE)) + hicn_new_data (vm, rt, b0, &next0, tnow, nameptr0, namelen0, + isv6_0); + + if (PREDICT_TRUE (ret1 == HICN_ERROR_NONE)) + hicn_new_data (vm, rt, b1, &next1, tnow, nameptr1, namelen1, + isv6_1); + stats.pkts_data_count += 2; + + /* Maybe trace */ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_data_push_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_CONTENT; + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];; + t->next_index = next0; + } + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (b1->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_data_push_trace_t *t = + vlib_add_trace (vm, node, b1, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_CONTENT; + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX];; + t->next_index = next0; + } + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + u8 isv6; + u8 *nameptr; + u16 namelen; + hicn_name_t name; + hicn_header_t *hicn0; + vlib_buffer_t *b0; + u32 bi0; + u32 next0 = next_index; + int ret0; + + /* Prefetch for next iteration. */ + if (n_left_from > 1) + { + vlib_buffer_t *b1; + //hicn_buffer_t * hicnb1; + b1 = vlib_get_buffer (vm, from[1]); + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, STORE); + } + /* Dequeue a packet buffer */ + bi0 = from[0]; + from += 1; + n_left_from -= 1; + + b0 = vlib_get_buffer (vm, bi0); + next0 = HICN_DATA_PUSH_NEXT_ERROR_DROP; + + ret0 = hicn_data_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); + nameptr = (u8 *) (&name); + + if (PREDICT_TRUE (ret0 == HICN_ERROR_NONE)) + hicn_new_data (vm, rt, b0, &next0, tnow, nameptr, namelen, isv6); + stats.pkts_data_count++; + + /* Maybe trace */ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_data_push_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_CONTENT; + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];; + t->next_index = next0; + } + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, hicn_data_push_node.index, + HICNFWD_ERROR_CACHED, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +always_inline u8 * +hicn_data_push_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_data_push_trace_t *t = va_arg (*args, hicn_data_push_trace_t *); + + s = format (s, "DATA-STORE: pkt: %d, sw_if_index %d, next index %d\n", + (int) t->pkt_type, t->sw_if_index, t->next_index); + + return (s); +} + + +/* + * Node registration for the data forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_data_push_node) = +{ + .function = hicn_data_push_fn, + .name = "hicn-data-push", + .vector_size = sizeof(u32), + .runtime_data_bytes = sizeof(hicn_data_push_runtime_t), + .format_trace = hicn_data_push_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_data_push_error_strings), + .error_strings = hicn_data_push_error_strings, + .n_next_nodes = HICN_DATA_PUSH_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = { + [HICN_DATA_PUSH_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/error.c b/hicn-plugin/src/error.c new file mode 100755 index 000000000..588ae2398 --- /dev/null +++ b/hicn-plugin/src/error.c @@ -0,0 +1,28 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "error.h" + +const char *HICN_ERROR_STRING[] = { +#define _(a,b,c) c, + foreach_hicn_error +#undef _ +}; + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/error.h b/hicn-plugin/src/error.h new file mode 100755 index 000000000..978c7f2ca --- /dev/null +++ b/hicn-plugin/src/error.h @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_ERROR_H__ +#define __HICN_ERROR_H__ + +#define foreach_hicn_error \ + _(NONE, 0, "Ok") \ + _(UNSPECIFIED, -128, "Unspecified Error") \ + _(FACE_NOT_FOUND, -129, "Face not found in Face table") \ + _(FACE_NULL, -130, "Face null") \ + _(FACE_IP_ADJ_NOT_FOUND, -131, "Ip adjacecny for face not found") \ + _(FACE_HW_INT_NOT_FOUND, -132, "Hardware interface not found") \ + _(FACE_NOMEM, -133, "Face table is full") \ + _(FACE_NO_GLOBAL_IP, -134, "No global ip address for face") \ + _(FACE_NOT_FOUND_IN_ENTRY, -135, "Face not found in entry") \ + _(FACE_ALREADY_DELETED, -136, "Face alredy deleted") \ + _(FACE_ALREADY_CREATED, -137, "Face alredy created") \ + _(FWD_NOT_ENABLED, -138, "hICN forwarder not enabled") \ + _(FWD_ALREADY_ENABLED, -139, "hICN forwarder alredy enabled") \ + _(PARSER_UNSUPPORTED_PROTO, -140, "Unsupported protocol") \ + _(PARSER_PKT_INVAL, -141, "Packet null") \ + _(PIT_CONFIG_MINLT_OOB, -142, "Min lifetime ouf of bounds") \ + _(PIT_CONFIG_MAXLT_OOB, -143, "Max lifetime ouf of bounds") \ + _(PIT_CONFIG_MINMAXLT, -144, "Min lifetime grater than max lifetime") \ + _(PIT_CONFIG_DFTLT_OOB, -145, "Default lifetime ouf of bounds") \ + _(PIT_CONFIG_SIZE_OOB, -146, "Pit size ouf of bounds") \ + _(CS_CONFIG_SIZE_OOB, -147, "CS size ouf of bounds") \ + _(CS_CONFIG_RESERVED_OOB, -148, "Reseved CS must be between 0 and 100 (excluded)") \ + _(DPO_CTX_NHOPS_NS, -149, "No space for additional next hop") \ + _(DPO_CTX_NHOPS_EXISTS, -150, "Next hop already in the route") \ + _(DPO_CTX_NOT_FOUND, -151, "Dpo context not found") \ + _(DPO_MGR_ID_NOT_VALID, -152, "Dpo id for strategy and context not valid") \ + _(HASHTB_HASH_NOT_FOUND, -153, "Hash not found in hash table") \ + _(HASHTB_HASH_INVAL, -154, "Error while calculating the hash") \ + _(HASHTB_NOMEM, -155, "Unable to allocate new buckets or nodes") \ + _(HASHTB_INVAL, -156, "Invalid argument") \ + _(HASHTB_KEY_INVAL, -157, "Invalid hashtb key") \ + _(HASHTB_EXIST, -158, "Hash already in hashtable") \ + _(ROUTE_INVAL, -159, "Invalid face id and weight") \ + _(ROUTE_NO_LD, -160, "Expected load balance dpo") \ + _(ROUTE_MLT_LD, -161, "Unexpected mulitple buckets in load balance dpo") \ + _(ROUTE_NO_INSERT, -162, "Unable to insert a new FIB entry") \ + _(ROUTE_DPO_NO_HICN, -163, "Dpo is not of type hICN") \ + _(ROUTE_NOT_FOUND, -164, "Route not found in FIB") \ + _(ROUTE_NOT_UPDATED, -165, "Unable to update route") \ + _(ROUTE_ALREADY_EXISTS, -166, "Route already in FIB") \ + _(CLI_INVAL, -167, "Invalid input") \ + _(PUNT_INVAL, -168, "Invalid prefix or subnet or interface") \ + _(PUNT_TBL_NOT_FOUND, -169, "Vnet table not found") \ + _(PUNT_TBL_EXIST, -170, "Vnet table already created") \ + _(PUNT_SSN_NOT_FOUND, -171, "Vnet session not found") \ + _(PUNT_SSN_EXIST, -172, "Vnet session already created") \ + _(PUNT_SKIP_NOT_SUPPORTED, -173, "Skip size not supported. Skip must be <= 1") \ + _(PUNT_NOMEM, -174, "Unable to allocate skip_mask") \ + _(IPS_ADDR_TYPE_NONUNIFORM, -175, "Src and dst addr have different ip types") \ + _(FACE_TYPE_EXISTS, -176, "Face type already registered") \ + _(NO_BUFFERS, -177, "No vlib_buffer available for packet cloning.") \ + _(NOT_IMPLEMENTED, -178, "Function not yet implemented") \ + _(IFACE_IP_ADJ_NOT_FOUND, -179, "IP adjacency on incomplete face not available") \ + _(APPFACE_ALREADY_ENABLED, -180, "Application face already enabled on interface") \ + _(APPFACE_FEATURE, -181, "Error while enabling app face feature") \ + _(APPFACE_NOT_FOUND, -182, "Application face not found") \ + _(APPFACE_PROD_PREFIX_NULL, -183, "Prefix must not be null for producer face") \ + _(MW_STRATEGY_NH_NOT_FOUND, -184, "Next hop not found") \ + _(MW_STRATEGY_SET, -185, "Error while setting weight for next hop") \ + _(STRATEGY_NOT_FOUND, -186, "Strategy not found") + + +typedef enum +{ +#define _(a,b,c) HICN_ERROR_##a = (b), + foreach_hicn_error +#undef _ + HICN_N_ERROR, +} hicn_error_t; + +extern const char *HICN_ERROR_STRING[]; + +#define get_error_string(errno) (char *)(errno ? HICN_ERROR_STRING[(-errno) - 127] : HICN_ERROR_STRING[errno]) + +#endif /* //__HICN_ERROR_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/face_db.h b/hicn-plugin/src/face_db.h new file mode 100755 index 000000000..7b8a08879 --- /dev/null +++ b/hicn-plugin/src/face_db.h @@ -0,0 +1,153 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_FACE_DB_H__ +#define __HICN_FACE_DB_H__ + +#include <vnet/dpo/dpo.h> +#include "faces/face.h" + +/** + * @File + * + * Define a face db that is store in every pit entry. A face db containes a list + * of incoming faces for interest packets that are used to forward data packets + * on the interests' reverse path + */ + +/* Must be power of two */ +#define HICN_FACE_DB_INLINE_FACES 4 + +#define HICN_PIT_N_HOP_BITMAP_SIZE HICN_PARAM_PIT_ENTRY_PHOPS_MAX + +#define HICN_PIT_N_HOP_BUCKET (HICN_PARAM_PIT_ENTRY_PHOPS_MAX - HICN_FACE_DB_INLINE_FACES) + +STATIC_ASSERT ((HICN_PIT_N_HOP_BUCKET & (HICN_PIT_N_HOP_BUCKET - 1)) == 0, + "HICN_PARAM_PIT_ENTRY_PHOP_MAX must be a power of 2 + 4"); + +/* Takes 2 cache lines */ +typedef struct __attribute__ ((packed)) hicn_face_bucket_s +{ + /* Array of indexes of virtual faces */ + dpo_id_t faces[HICN_PIT_N_HOP_BUCKET]; + + CLIB_CACHE_LINE_ALIGN_MARK (cache_line1); + + /* Used to check if interests are retransmission */ + u8 bitmap[HICN_PIT_N_HOP_BITMAP_SIZE]; + +} hicn_face_bucket_t; + +extern hicn_face_bucket_t *hicn_face_bucket_pool; + +typedef struct __attribute__ ((packed)) hicn_face_db_s +{ + /* 19B + 1B = 20B */ + /* Equal to one or zero */ + u8 is_overflow; + + /* Number of faces in the last bucket */ + /* Or next availabe entry for storing a dpo_id_t */ + /* 20B + 4B = 24B */ + u32 n_faces; + + /* 24B + 32B (8*4) = 56B */ + /* Array of indexes of virtual faces */ + dpo_id_t inline_faces[HICN_FACE_DB_INLINE_FACES]; + + /* 56B + 4B = 60B */ + u32 next_bucket; + + /* 60B + 4B = 64B */ + u32 align; + //align back to 64 + +} hicn_face_db_t; + +always_inline dpo_id_t * +hicn_face_db_get_dpo_face (u32 index, hicn_face_db_t * face_db) +{ + ASSERT (index < face_db->n_faces); + + return index < HICN_FACE_DB_INLINE_FACES ? &(face_db->inline_faces[index]) : + &(pool_elt_at_index (hicn_face_bucket_pool, face_db->next_bucket)->faces + [(index - HICN_FACE_DB_INLINE_FACES) & (HICN_PIT_N_HOP_BUCKET - 1)]); +} + +always_inline void +hicn_face_db_init (int max_element) +{ + pool_init_fixed (hicn_face_bucket_pool, max_element); +} + +always_inline hicn_face_bucket_t * +hicn_face_db_get_bucket (u32 bucket_index) +{ + return pool_elt_at_index (hicn_face_bucket_pool, bucket_index); +} + +always_inline void +hicn_face_db_add_face_dpo (dpo_id_t * dpo, hicn_face_db_t * face_db) +{ + ASSERT (dpo->dpoi_index != ~0); + + hicn_face_bucket_t *faces_bkt = + pool_elt_at_index (hicn_face_bucket_pool, face_db->next_bucket); + + dpo_id_t *face = + face_db->n_faces < + HICN_FACE_DB_INLINE_FACES ? &(face_db->inline_faces[face_db->n_faces]) : + &(faces_bkt->faces + [(face_db->n_faces - + HICN_FACE_DB_INLINE_FACES) & (HICN_PIT_N_HOP_BUCKET - 1)]); + + clib_memcpy (face, dpo, sizeof (dpo_id_t)); + + /* This access the dpoi to increase the lock */ + dpo_lock (dpo); + + u32 bitmap_index = dpo->dpoi_index % HICN_PIT_N_HOP_BITMAP_SIZE; + faces_bkt->bitmap[bitmap_index] |= 0x01; + face_db->n_faces++; +} + +always_inline u8 +hicn_face_search (dpo_id_t * dpo, hicn_face_db_t * face_db) +{ + hicn_face_bucket_t *faces_bkt = + pool_elt_at_index (hicn_face_bucket_pool, face_db->next_bucket); + u32 bitmap_index = dpo->dpoi_index % HICN_PIT_N_HOP_BITMAP_SIZE; + + return faces_bkt->bitmap[bitmap_index] & 0x01; +} + +always_inline void +hicn_faces_flush (hicn_face_db_t * face_db) +{ + hicn_face_bucket_t *faces_bkt = + pool_elt_at_index (hicn_face_bucket_pool, face_db->next_bucket); + clib_memset_u64 (&(faces_bkt->bitmap), 0, HICN_PIT_N_HOP_BITMAP_SIZE / 8); + face_db->n_faces = 0; + pool_put_index (hicn_face_bucket_pool, face_db->next_bucket); +} + + +#endif /* // __HICN_FACE_DB_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/address_mgr.c b/hicn-plugin/src/faces/app/address_mgr.c new file mode 100755 index 000000000..76a7e0f6d --- /dev/null +++ b/hicn-plugin/src/faces/app/address_mgr.c @@ -0,0 +1,243 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * Copyright (c) 2017-2019 by cisco systems inc. All rights reserved. + * + */ + +#include <dlfcn.h> + +#include <vlib/vlib.h> +#include <vnet/ip/ip6_packet.h> +#include <vnet/ip/ip4.h> //ip4_add_del_ip_address +#include <vnet/ip/ip6.h> //ip6_add_del_ip_address +#include <vnet/fib/fib_types.h> //FIB_PROTOCOL_IP4/6, FIB_NODE_INDEX_INVALID +#include <vnet/fib/fib_entry.h> //FIB_SOURCE_PLUGIN_HI +#include <vnet/fib/fib_table.h> +#include <vppinfra/format.h> +#include <vnet/interface.h> //appif_flags +#include <vnet/interface_funcs.h> //vnet_sw_interface_set_flags + +#include "address_mgr.h" +#include "../../hicn.h" +#include "../../infra.h" +#include "../../error.h" +#include "../face.h" +#include "../ip/face_ip.h" +#include "../../strategy_dpo_ctx.h" +#include "../../route.h" + +typedef struct address_mgr_main_s +{ + ip4_address_t next_ip4_local_addr; + ip6_address_t next_ip6_local_addr; +} address_mgr_main_t; + +address_mgr_main_t address_mgr_main; + +static void +increment_v4_address (ip4_address_t * a, u32 val) +{ + u32 v; + + v = clib_net_to_host_u32 (a->as_u32) + val; + a->as_u32 = clib_host_to_net_u32 (v); +} + +static void +increment_v6_address (ip6_address_t * a, u64 val) +{ + u64 v; + + v = clib_net_to_host_u64 (a->as_u64[1]) + val; + a->as_u64[1] = clib_host_to_net_u64 (v); +} + +void +get_two_ip4_addresses (ip4_address_t * appif_addr, ip4_address_t * nh_addr) +{ + /* We want two consecutives address that fall into a /31 mask */ + if (address_mgr_main.next_ip4_local_addr.as_u8[3] & 0x01) + increment_v4_address (&(address_mgr_main.next_ip4_local_addr), 1); + + *appif_addr = address_mgr_main.next_ip4_local_addr; + increment_v4_address (&(address_mgr_main.next_ip4_local_addr), 1); + *nh_addr = address_mgr_main.next_ip4_local_addr; + fib_prefix_t fib_pfx; + fib_node_index_t fib_entry_index = FIB_NODE_INDEX_INVALID; + u32 fib_index; + + fib_pfx.fp_proto = FIB_PROTOCOL_IP4; + fib_pfx.fp_len = ADDR_MGR_IP4_LEN; + /* At this point the face exists in the face table */ + do + { + /* Check if the route already exist in the fib */ + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 0, appif_addr->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + if (fib_entry_index != FIB_NODE_INDEX_INVALID) + { + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 0, nh_addr->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = + fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, + FIB_SOURCE_PLUGIN_HI); + } + if (fib_entry_index != FIB_NODE_INDEX_INVALID) + { + increment_v4_address (appif_addr, 2); + increment_v4_address (nh_addr, 2); + } + } + while (fib_entry_index != FIB_NODE_INDEX_INVALID); + + address_mgr_main.next_ip4_local_addr = *nh_addr; + increment_v4_address (&(address_mgr_main.next_ip4_local_addr), 1); +} + +void +get_two_ip6_addresses (ip6_address_t * appif_addr, ip6_address_t * nh_addr) +{ + + /* We want two consecutives address that fall into a /127 mask */ + if (address_mgr_main.next_ip6_local_addr.as_u8[15] & 0x01) + increment_v6_address (&(address_mgr_main.next_ip6_local_addr), 1); + + *appif_addr = address_mgr_main.next_ip6_local_addr; + increment_v6_address (&(address_mgr_main.next_ip6_local_addr), 1); + *nh_addr = address_mgr_main.next_ip6_local_addr; + + + fib_prefix_t fib_pfx; + fib_node_index_t fib_entry_index = FIB_NODE_INDEX_INVALID; + u32 fib_index; + + fib_pfx.fp_proto = FIB_PROTOCOL_IP6; + fib_pfx.fp_len = ADDR_MGR_IP6_LEN; + /* At this point the face exists in the face table */ + do + { + /* Check if the route already exist in the fib */ + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 1, appif_addr->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + if (fib_entry_index != FIB_NODE_INDEX_INVALID) + { + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 0, nh_addr->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = + fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, + FIB_SOURCE_PLUGIN_HI); + } + if (fib_entry_index != FIB_NODE_INDEX_INVALID) + { + increment_v6_address (appif_addr, 2); + increment_v6_address (nh_addr, 2); + } + } + while (fib_entry_index != FIB_NODE_INDEX_INVALID); + + address_mgr_main.next_ip6_local_addr = *nh_addr; + increment_v6_address (&(address_mgr_main.next_ip6_local_addr), 1); +} + +ip4_address_t +get_ip4_address () +{ + ip4_address_t *prefix = &address_mgr_main.next_ip4_local_addr; + fib_prefix_t fib_pfx; + fib_node_index_t fib_entry_index = FIB_NODE_INDEX_INVALID; + u32 fib_index; + + fib_pfx.fp_proto = FIB_PROTOCOL_IP4; + fib_pfx.fp_len = ADDR_MGR_IP4_LEN; + /* At this point the face exists in the face table */ + do + { + /* Check if the route already exist in the fib */ + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 0, prefix->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + increment_v4_address (prefix, 1); + } + while (fib_entry_index != FIB_NODE_INDEX_INVALID); + + return fib_pfx.fp_addr.ip4; +} + +ip6_address_t +get_ip6_address () +{ + ip6_address_t *prefix = &address_mgr_main.next_ip6_local_addr; + fib_prefix_t fib_pfx; + fib_node_index_t fib_entry_index = FIB_NODE_INDEX_INVALID; + u32 fib_index; + + fib_pfx.fp_proto = FIB_PROTOCOL_IP6; + fib_pfx.fp_len = ADDR_MGR_IP6_LEN; + /* At this point the face exists in the face table */ + do + { + /* Check if the route already exist in the fib */ + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 1, prefix->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + increment_v6_address (prefix, 1); + } + while (fib_entry_index != FIB_NODE_INDEX_INVALID); + + return fib_pfx.fp_addr.ip6; +} + +void +address_mgr_init () +{ + + address_mgr_main.next_ip4_local_addr.as_u8[0] = 169; + address_mgr_main.next_ip4_local_addr.as_u8[1] = 254; + address_mgr_main.next_ip4_local_addr.as_u8[2] = 1; + address_mgr_main.next_ip4_local_addr.as_u8[3] = 1; + + ip6_address_set_zero (&address_mgr_main.next_ip6_local_addr); + address_mgr_main.next_ip6_local_addr.as_u16[0] = + clib_host_to_net_u16 (0xfc00); + address_mgr_main.next_ip6_local_addr.as_u8[15] = 1; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/address_mgr.h b/hicn-plugin/src/faces/app/address_mgr.h new file mode 100755 index 000000000..99450dcdd --- /dev/null +++ b/hicn-plugin/src/faces/app/address_mgr.h @@ -0,0 +1,76 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef _ADDRESS_MGR_H_ +#define _ADDRESS_MGR_H_ + +/** + * @file + * + * @brief Address manager. + * + * Address manager that maintains a pool of ip4 and ip6 addresses to assign to + * an interface. + */ + +#define ADDR_MGR_IP4_LEN 32 +#define ADDR_MGR_IP4_CONS_LEN 31 +#define ADDR_MGR_IP6_LEN 128 +#define ADDR_MGR_IP6_CONS_LEN 127 + +/** + * @brief Get two consecutive IP v4 addresses from the same /31 subnet + * + * @param addr1 first ip address with the least significant bit set to 0 + * @param addr2 second ip address with the least significant bit set to 1 + */ +void get_two_ip4_addresses (ip4_address_t * addr1, ip4_address_t * addr2); + +/** + * @brief Get two consecutive IP v6 addresses from the same /126 subnet + * + * @param addr1 first ip address with the least significant bit set to 0 + * @param addr2 second ip address with the least significant bit set to 1 + */ +void get_two_ip6_addresses (ip6_address_t * addr1, ip6_address_t * addr2); + +/** + * @brief Get one IP v4 address + * + * @return ip address + */ +ip4_address_t get_ip4_address (void); + +/** + * @brief Get one IP v6 address + * + * @return ip address + */ +ip6_address_t get_ip6_address (void); + +/** + * @brief Init the address manager + */ +void address_mgr_init (void); + +#endif /* _ADDRESS_MGR_ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/app/face_app_cli.c b/hicn-plugin/src/faces/app/face_app_cli.c new file mode 100755 index 000000000..d55e990de --- /dev/null +++ b/hicn-plugin/src/faces/app/face_app_cli.c @@ -0,0 +1,203 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/vnet.h> +#include <vnet/dpo/dpo.h> +#include <vlib/vlib.h> +#include <vnet/ip/ip6_packet.h> + +#include "../ip/face_ip.h" +#include "../ip/dpo_ip.h" +#include "../face.h" +#include "face_prod.h" +#include "face_cons.h" + +#define HICN_FACE_NONE 0 +#define HICN_FACE_DELETE 1 +#define HICN_FACE_ADD 2 + +static clib_error_t * +hicn_face_app_cli_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + vnet_main_t *vnm = vnet_get_main (); + ip46_address_t prefix; + hicn_face_id_t face_id = HICN_FACE_NULL; + u32 cs_reserved = HICN_PARAM_FACE_DFT_CS_RESERVED; + int ret = HICN_ERROR_NONE; + int sw_if; + int face_op = HICN_FACE_NONE; + int prod = 0; + int len; + + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return (0); + } + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "del")) + { + face_op = HICN_FACE_DELETE; + } + else if (face_op == HICN_FACE_DELETE + && unformat (line_input, "id %d", &face_id)) + ; + else if (unformat (line_input, "add")) + { + face_op = HICN_FACE_ADD; + } + else if (face_op == HICN_FACE_ADD) + { + if (unformat (line_input, "intfc %U", + unformat_vnet_sw_interface, vnm, &sw_if)) + ; + else + if (unformat + (line_input, "prod prefix %U/%d", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &len)) + { + prod = 1; + } + else if (prod && unformat (line_input, "cs_size %d", &cs_reserved)) + ; + else if (unformat (line_input, "cons")) + ; + else + { + return clib_error_return (0, "%s '%U'", + get_error_string + (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + else + { + return clib_error_return (0, "%s '%U'", + get_error_string (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + + if (face_id != HICN_FACE_NULL) + { + + if (!hicn_dpoi_idx_is_valid (face_id)) + { + return clib_error_return (0, "%s, face_id %d not valid", + get_error_string (ret), face_id); + } + } + + int rv; + switch (face_op) + { + case HICN_FACE_ADD: + { + ip46_address_t prod_addr; + ip4_address_t cons_addr4; + ip6_address_t cons_addr6; + + hicn_prefix_t name_prefix = { + .name = prefix, + .len = len, + }; + if (prod) + { + rv = + hicn_face_prod_add (&name_prefix, sw_if, &cs_reserved, + &prod_addr, &face_id); + if (rv == HICN_ERROR_NONE) + { + u8 *sbuf = NULL; + sbuf = + format (sbuf, "Face id: %d, producer address %U", face_id, + format_ip46_address, &prod_addr, + 0 /*IP46_ANY_TYPE */ ); + vlib_cli_output (vm, "%s", sbuf); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + } + else + { + rv = + hicn_face_cons_add (&cons_addr4, &cons_addr6, sw_if, &face_id); + if (rv == HICN_ERROR_NONE) + { + u8 *sbuf = NULL; + sbuf = + format (sbuf, "Face id: %d, consumer addresses v4 %U v6 %U", + face_id, format_ip4_address, &cons_addr4, + format_ip6_address, &cons_addr6); + vlib_cli_output (vm, "%s", sbuf); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + } + break; + } + case HICN_FACE_DELETE: + { + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS) + rv = hicn_face_cons_del (face_id); + else + rv = hicn_face_prod_del (face_id); + if (rv == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Face %d deleted", face_id); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + break; + } + default: + return clib_error_return (0, "Operation (%d) not implemented", face_op); + break; + } + return (rv == HICN_ERROR_NONE) ? 0 : clib_error_return (0, "%s\n", + get_error_string + (rv)); +} + +/* cli declaration for 'cfg face' */ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (hicn_face_app_cli_set_command, static) = +{ + .path = "hicn face app", + .short_help = "hicn face app {add intfc <sw_if> { prod prefix <hicn_prefix> cs_size <size_in_packets>} {cons} | {del <face_id>}", + .function = hicn_face_app_cli_set_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/app/face_cons.c b/hicn-plugin/src/faces/app/face_cons.c new file mode 100755 index 000000000..8278b6ab3 --- /dev/null +++ b/hicn-plugin/src/faces/app/face_cons.c @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/ip/ip6_packet.h> +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "face_cons.h" +#include "address_mgr.h" +#include "../../infra.h" + +int +hicn_face_cons_add (ip4_address_t * nh_addr4, ip6_address_t * nh_addr6, + u32 swif, hicn_face_id_t * faceid) +{ + /* Create the corresponding appif if */ + /* Retrieve a valid local ip address to assign to the appif */ + /* Set the ip address and create the face in the face db */ + + vlib_main_t *vm = vlib_get_main (); + vnet_main_t *vnm = vnet_get_main (); + + hicn_main_t *hm = &hicn_main; + + ip46_address_t if_ip; + ip46_address_reset (&if_ip); + nh_addr4->as_u32 = 0; + nh_addr6->as_u64[0] = 0; + nh_addr6->as_u64[1] = 0; + u32 if_flags = 0; + + if (!hm->is_enabled) + { + return HICN_ERROR_FWD_NOT_ENABLED; + } + if_flags |= VNET_SW_INTERFACE_FLAG_ADMIN_UP; + vnet_sw_interface_set_flags (vnm, swif, if_flags); + + get_two_ip4_addresses (&(if_ip.ip4), nh_addr4); + ip4_add_del_interface_address (vm, + swif, + &(if_ip.ip4), + ADDR_MGR_IP4_CONS_LEN, 0 /* is_del */ ); + + ip46_address_t nh_addr = to_ip46 (0, (u8 *) nh_addr4); + + hicn_iface_ip_add (&if_ip, &nh_addr, swif, faceid); + + hicn_face_t *face = hicn_dpoi_get_from_idx (*faceid); + face->shared.flags |= HICN_FACE_FLAGS_APPFACE_CONS; + + get_two_ip6_addresses (&(if_ip.ip6), nh_addr6); + ip6_add_del_interface_address (vm, + swif, + &(if_ip.ip6), + ADDR_MGR_IP6_CONS_LEN, 0 /* is_del */ ); + + hicn_iface_ip_add (&if_ip, (ip46_address_t *) nh_addr6, swif, faceid); + + face = hicn_dpoi_get_from_idx (*faceid); + face->shared.flags |= HICN_FACE_FLAGS_APPFACE_CONS; + + return vnet_feature_enable_disable ("ip6-unicast", + "hicn-iface-ip6-input", swif, 1, 0, + 0) == + 0 ? HICN_ERROR_NONE : HICN_ERROR_APPFACE_FEATURE; +} + +int +hicn_face_cons_del (hicn_face_id_t face_id) +{ + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS) + { + int ret = hicn_face_ip_del (face_id); + + return ret == + HICN_ERROR_NONE + ? (vnet_feature_enable_disable + ("ip6-unicast", "hicn-iface-ip6-input", face->shared.sw_if, 0, + 0, 0) == 0 ? HICN_ERROR_NONE : HICN_ERROR_APPFACE_FEATURE) : ret; + } + else + { + return HICN_ERROR_APPFACE_NOT_FOUND; + } +} + +u8 * +format_hicn_face_cons (u8 * s, va_list * args) +{ + CLIB_UNUSED (index_t index) = va_arg (*args, index_t); + CLIB_UNUSED (u32 indent) = va_arg (*args, u32); + + s = format (s, " (consumer face)"); + + return s; +} + +/* *INDENT-OFF* */ +VNET_FEATURE_INIT(hicn_cons_app, static)= +{ + .arc_name = "ip6-unicast", + .node_name = "hicn-iface-ip6-input", + .runs_before = VNET_FEATURES("ip6-inacl"), +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/face_cons.h b/hicn-plugin/src/faces/app/face_cons.h new file mode 100755 index 000000000..067b45a1f --- /dev/null +++ b/hicn-plugin/src/faces/app/face_cons.h @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef _FACE_CONSUMER_H_ +#define _FACE_CONSUMER_H_ + +#include <vnet/vnet.h> +#include "../face.h" + +/** + * @file + * + * @brief Consumer application face. + * + * A consumer application face is built upon an ip face and identify a local + * consumer application (co-located with the forwarder) that acts as a + * consumer. The interface used by the consumer application face is + * assumed to be reserved only for hICN traffic (e.g., dedicated memif that + * connects the applictation to the forwarder). Only one application face can be + * assigned to an interface. + * + * In the vlib graph a consumer application face directly connect the + * device-input node to the hicn-vface-ip node. + */ + +/** + * @brief Add a new consumer application face + * + * The method creates the internal ip face and set the ip address to the interface. + * @param nh_addr4 ipv4 address to assign to interface used by the application to + * send interest to the consumer face + * @param nh_addr6 ipv6 address to assign to interface used by the application to + * send interest to the consumer face + * @param swif interface associated to the face + */ +int +hicn_face_cons_add (ip4_address_t * nh_addr4, ip6_address_t * nh_addr6, + u32 swif, hicn_face_id_t * faceid); + +/** + * @brief Delete an existing consumer application face + * + * @param face_id Id of the consumer application face + */ +int hicn_face_cons_del (hicn_face_id_t face_id); + +/** + * @brief Format an application consumer face + * + * @param s Pointer to a previous string. If null it will be initialize + * @param args Array storing input values. Expected u32 face_id and u32 indent + * @return String with the formatted face + */ +u8 *format_hicn_face_cons (u8 * s, va_list * args); + + +#endif /* _FACE_CONSUMER_H_ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/face_prod.c b/hicn-plugin/src/faces/app/face_prod.c new file mode 100755 index 000000000..d06fe2ff3 --- /dev/null +++ b/hicn-plugin/src/faces/app/face_prod.c @@ -0,0 +1,375 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/ip/ip6_packet.h> +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "face_prod.h" +#include "address_mgr.h" +#include "../../infra.h" +#include "../../route.h" +#include "../../cache_policies/cs_lru.h" + +hicn_face_prod_state_t *face_state_vec; + +/* used to check if an interface is already in the vector */ +u32 *face_state_pool; + +static int +hicn_app_state_create (u32 swif, hicn_prefix_t * prefix) +{ + /* Make sure that the pool is not empty */ + pool_validate_index (face_state_pool, 0); + + u32 *swif_app; + u8 found = 0; + /* *INDENT-OFF* */ + pool_foreach (swif_app, face_state_pool,{ + if (*swif_app == swif) + { + found = 1; + } + } + ); + /* *INDENT-ON* */ + + + if (found) + return HICN_ERROR_APPFACE_ALREADY_ENABLED; + + + /* Create the appif and store in the vector */ + vec_validate (face_state_vec, swif); + clib_memcpy (&(face_state_vec[swif].prefix), prefix, + sizeof (hicn_prefix_t)); + + /* Set as busy the element in the vector */ + pool_get (face_state_pool, swif_app); + *swif_app = swif; + + int ret = HICN_ERROR_NONE; + if (ip46_address_is_ip4 (&(prefix->name))) + { + ret = + vnet_feature_enable_disable ("ip4-unicast", "hicn-face-prod-input", + swif, 1, 0, 0); + } + else + { + ret = + vnet_feature_enable_disable ("ip6-unicast", "hicn-face-prod-input", + swif, 1, 0, 0); + } + + return ret == 0 ? HICN_ERROR_NONE : HICN_ERROR_APPFACE_FEATURE; +} + +static int +hicn_app_state_del (u32 swif) +{ + /* Make sure that the pool is not empty */ + pool_validate_index (face_state_pool, 0); + + u32 *temp; + u32 *swif_app = NULL; + u8 found = 0; + ip46_address_t *prefix_addr; + /* *INDENT-OFF* */ + pool_foreach (temp, face_state_pool,{ + if (*temp == swif) + { + found = 1; + swif_app = temp; + } + } + ); + /* *INDENT-ON* */ + + prefix_addr = &(face_state_vec[swif].prefix.name); + if (!found) + return HICN_ERROR_APPFACE_NOT_FOUND; + + int ret = HICN_ERROR_NONE; + if (ip46_address_is_ip4 (prefix_addr)) + { + ret = + vnet_feature_enable_disable ("ip4-unicast", "hicn-face-prod-input", + swif, 0, 0, 0); + } + else + { + ret = + vnet_feature_enable_disable ("ip6-unicast", "hicn-face-prod-input", + swif, 0, 0, 0); + } + + pool_put (face_state_pool, swif_app); + memset (&face_state_vec[swif], 0, sizeof (hicn_face_prod_state_t)); + + return ret == 0 ? HICN_ERROR_NONE : HICN_ERROR_APPFACE_FEATURE; +} + +int +hicn_face_prod_add (hicn_prefix_t * prefix, u32 sw_if, u32 * cs_reserved, + ip46_address_t * prod_addr, hicn_face_id_t * faceid) +{ + vlib_main_t *vm = vlib_get_main (); + vnet_main_t *vnm = vnet_get_main (); + + hicn_main_t *hm = &hicn_main; + + ip46_address_t app_ip; + u32 if_flags = 0; + + if (!hm->is_enabled) + { + return HICN_ERROR_FWD_NOT_ENABLED; + } + int ret = HICN_ERROR_NONE; + hicn_face_t *face = NULL; + + if_flags |= VNET_SW_INTERFACE_FLAG_ADMIN_UP; + vnet_sw_interface_set_flags (vnm, sw_if, if_flags); + + if (ip46_address_is_zero (&prefix->name)) + { + return HICN_ERROR_APPFACE_PROD_PREFIX_NULL; + } + /* + * Check if a producer face is already existing for the same prefix + * and sw_if + */ + if (ip46_address_is_ip4 (&prefix->name)) + { + face = + hicn_face_ip4_get (&(prefix->name.ip4), sw_if, + &hicn_face_ip_remote_hashtb); + } + else + { + face = + hicn_face_ip6_get (&(prefix->name.ip6), sw_if, + &hicn_face_ip_remote_hashtb); + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + } + + if (face != NULL) + { + if (!(face->shared.flags & HICN_FACE_FLAGS_DELETED)) + return HICN_ERROR_FACE_ALREADY_CREATED; + + /* + * Something went worng, a consumer face exists for the + * producer's prefix. + */ + /* It should never happens, this is a safety check. */ + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS) + return HICN_ERROR_FACE_ALREADY_CREATED; + + /* If the face exists but is marked as deleted, undelete it */ + if (face->shared.flags & HICN_FACE_FLAGS_DELETED) + { + /* + * remove the deleted flag and retrieve the face + * local addr + */ + face->shared.flags &= HICN_FACE_FLAGS_DELETED; + hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data; + app_ip = prod_face->ip_face.local_addr; + } + } + else + { + /* Otherwise create the face */ + if (ip46_address_is_ip4 (&prefix->name)) + { + /* + * Otherwise retrieve an ip address to assign as a + * local ip addr. + */ + ip4_address_t app_ip4 = get_ip4_address (); + ip4_add_del_interface_address (vm, + sw_if, + &app_ip4, + ADDR_MGR_IP4_CONS_LEN, + 0 /* is_del */ ); + app_ip = to_ip46 ( /* isv6 */ 0, app_ip4.as_u8); + } + else + { + ip6_address_t app_ip6 = get_ip6_address (); + ip6_add_del_interface_address (vm, + sw_if, + &app_ip6, + ADDR_MGR_IP6_CONS_LEN, + 0 /* is_del */ ); + app_ip = to_ip46 ( /* isv6 */ 1, app_ip6.as_u8); + } + + /* + * Special case: the nh_addr in the face is the appif ip + * address + */ + ret = hicn_face_ip_add (&app_ip, &(prefix->name), sw_if, faceid); + + face = hicn_dpoi_get_from_idx (*faceid); + + face->shared.flags |= HICN_FACE_FLAGS_APPFACE_PROD; + + hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data; + + /* + * For the moment we keep them here although it would be good + * to create a different face for appface + */ + prod_face->policy_vft.hicn_cs_insert = hicn_cs_lru.hicn_cs_insert; + prod_face->policy_vft.hicn_cs_update = hicn_cs_lru.hicn_cs_update; + prod_face->policy_vft.hicn_cs_dequeue = hicn_cs_lru.hicn_cs_dequeue; + prod_face->policy_vft.hicn_cs_delete_get = + hicn_cs_lru.hicn_cs_delete_get; + prod_face->policy_vft.hicn_cs_trim = hicn_cs_lru.hicn_cs_trim; + + } + + if (ret == HICN_ERROR_NONE + && hicn_face_prod_set_lru_max (*faceid, cs_reserved) == HICN_ERROR_NONE) + { + hicn_app_state_create (sw_if, prefix); + ret = hicn_route_add (faceid, 1, &(prefix->name), prefix->len); + } + + *prod_addr = app_ip; + + /* Cleanup in case of something went wrong. */ + if (ret) + { + hicn_app_state_del (sw_if); + + if (*faceid != HICN_FACE_NULL) + hicn_face_ip_del (*faceid); + } + return ret; +} + +int +hicn_face_prod_del (hicn_face_id_t face_id) +{ + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD) + { + hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data; + /* Free the CS reserved for the face */ + hicn_main.pitcs.pcs_app_max += prod_face->policy.max; + hicn_main.pitcs.pcs_app_count -= prod_face->policy.max; + prod_face->policy.max = 0; + + /* Remove the face from the fib */ + hicn_route_del_nhop (&(face_state_vec[face->shared.sw_if].prefix.name), + (face_state_vec[face->shared.sw_if].prefix.len), + face_id); + + int ret = hicn_face_ip_del (face_id); + return ret == + HICN_ERROR_NONE ? hicn_app_state_del (face->shared.sw_if) : ret; + } + else + { + return HICN_ERROR_APPFACE_NOT_FOUND; + } +} + +int +hicn_face_prod_set_lru_max (hicn_face_id_t face_id, u32 * requested_size) +{ + int ret = HICN_ERROR_NONE; + vlib_main_t *vm = vlib_get_main (); + hicn_face_t *face; + hicn_face_prod_t *face_prod; + + if (!hicn_infra_fwdr_initialized) + { + ret = HICN_ERROR_FWD_NOT_ENABLED; + vlib_cli_output (vm, "hicn: %s\n", get_error_string (ret)); + return ret; + } + face = hicn_dpoi_get_from_idx (face_id); + face_prod = (hicn_face_prod_t *) face->data; + + if (face == NULL) + return HICN_ERROR_FACE_NOT_FOUND; + + if (*requested_size > HICN_PARAM_FACE_MAX_CS_RESERVED) + *requested_size = HICN_PARAM_FACE_MAX_CS_RESERVED; + + uint32_t available = + hicn_main.pitcs.pcs_app_max - hicn_main.pitcs.pcs_app_count; + + if (*requested_size > available) + *requested_size = available; + + face_prod->policy.max = *requested_size; + face_prod->policy.count = 0; + face_prod->policy.head = face_prod->policy.tail = 0; + + hicn_main.pitcs.pcs_app_count += *requested_size; + + return ret; +} + +u8 * +format_hicn_face_prod (u8 * s, va_list * args) +{ + index_t index = va_arg (*args, index_t); + CLIB_UNUSED (u32 indent) = va_arg (*args, u32); + hicn_face_t *face; + hicn_face_prod_t *prod_face; + + face = hicn_dpoi_get_from_idx (index); + prod_face = (hicn_face_prod_t *) face->data; + + s = + format (s, " (producer face: CS size %d, data cached %d)", + prod_face->policy.max, prod_face->policy.count); + + return s; +} + +/* *INDENT-OFF* */ +VNET_FEATURE_INIT(hicn_prod_app_input_ip6, static)= +{ + .arc_name = "ip6-unicast", + .node_name = "hicn-face-prod-input", + .runs_before = VNET_FEATURES("ip6-inacl"), +}; +/* *INDENT-ON* */ + +/* *INDENT-OFF* */ +VNET_FEATURE_INIT(hicn_prod_app_input_ip4, static)= +{ + .arc_name = "ip4-unicast", + .node_name = "hicn-face-prod-input", + .runs_before = VNET_FEATURES("ip4-inacl"), +}; +/* *INDENT-ON* */ + + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/face_prod.h b/hicn-plugin/src/faces/app/face_prod.h new file mode 100755 index 000000000..89b74680b --- /dev/null +++ b/hicn-plugin/src/faces/app/face_prod.h @@ -0,0 +1,113 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef _FACE_PRODUCER_H_ +#define _FACE_PRODUCER_H_ + +#include "../../cache_policies/cs_policy.h" +#include "../ip/face_ip.h" + +/** + * @file + * + * @brief Producer application face. + * + * A producer application face is built upon an ip face and identify a local + * producer application (co-located with the forwarder) that acts as a producer. In the + * current design an application face is either a face towards a consumer face + * or towards a producer. The interface used by the producer application face is + * assumed to be reserved only for hICN traffic (e.g., dedicated memif that + * connects the applictation to the forwarder). Only one application face can be + * assigned to an interface. + * + * To each producer application face it is assigned a portion of the CS. Every + * data arriving to a producer application will be stored in the portion of the + * CS assigned to the face. The eviction policy is defined in the + * face. Available eviction faces are list in the /cache_policy folder. + * + * In the vlib graph a producer application face is directly connected to the + * device-input node (with the node hicn-face-prod-input) and passes every packet to + * the hicn-face-ip node. + */ + +/** + * @brief Producer application face state that refer to the hICN producer socket + * created by the application. + * + */ +typedef struct +{ + hicn_prefix_t prefix; +} hicn_face_prod_state_t; + +extern hicn_face_prod_state_t *face_state_vec; + +typedef struct __attribute__ ((packed)) hicn_face_prod_t_ +{ + hicn_face_ip_t ip_face; + + hicn_cs_policy_t policy; + hicn_cs_policy_vft_t policy_vft; + +} hicn_face_prod_t; + +/** + * @brief Add a new producer application face + * + * The method creates the internal ip face and the state specific to the + * producer application face. This method setups a route in the FIB for the + * producer's prefix. + * @param prefix hicn prefix name assigned to the producer face + * @param len length of the prefix + * @param swif interface associated to the face + * @param cs_reserved return the amount of cs assigned to the face + * @param prod_addr address to assign to interface used by the appliction to + * send data to the producer face + */ +int +hicn_face_prod_add (hicn_prefix_t * prefix, u32 swif, u32 * cs_reserved, + ip46_address_t * prod_addr, hicn_face_id_t * faceid); + +/** + * @brief Delete an existing application face + * + * @param faceid id of the face to remove + */ +int hicn_face_prod_del (hicn_face_id_t faceid); + +/** + * @brief Set lru queue size for an app face + * + * @param face_id Id of the producer application face + */ +int hicn_face_prod_set_lru_max (hicn_face_id_t face_id, u32 * requested_size); + +/** + * @brief Format an application producer face + * + * @param s Pointer to a previous string. If null it will be initialize + * @param args Array storing input values. Expected u32 face_id and u32 indent + * @return String with the formatted face + */ +u8 *format_hicn_face_prod (u8 * s, va_list * args); + + +#endif /* _FACE_PROD_H_ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/face_prod_node.c b/hicn-plugin/src/faces/app/face_prod_node.c new file mode 100755 index 000000000..2e746a703 --- /dev/null +++ b/hicn-plugin/src/faces/app/face_prod_node.c @@ -0,0 +1,341 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/** + * @file + * + * @brief Application interface node + * + * This node runs after the device-input node and perfoms some safety checks in + * order to avoid unespected interest and data (i.e., hICN packets whose name do + * not contain the prefix associated to the application face) + */ + +#include "face_prod.h" +#include "../../hicn_api.h" +#include "../../mgmt.h" + +#define foreach_face_prod_input_error \ + _(NOT_SOCK_PREFIX, "name not in the socket prefix") + +typedef enum +{ +#define _(f,s) FACE_PROD_INPUT_ERROR_##f, + foreach_face_prod_input_error +#undef _ + FACE_PROD_INPUT_N_ERROR, +} face_prod_input_error_t; + +static __clib_unused char *face_prod_input_error_strings[] = { +#define _(n,s) s, + foreach_face_prod_input_error +#undef _ +}; + +/* Node context data */ +typedef struct hicn_face_prod_runtime_s +{ + int id; +} hicn_face_prod_runtime_t; + +typedef struct +{ + u32 next_index; + u32 sw_if_index; +} hicn_face_prod_input_trace_t; + +typedef enum +{ + HICN_FACE_PROD_NEXT_DATA_IP4, + HICN_FACE_PROD_NEXT_DATA_IP6, + HICN_FACE_PROD_NEXT_ERROR_DROP, + HICN_FACE_PROD_N_NEXT, +} hicn_face_prod_next_t; + +vlib_node_registration_t hicn_face_prod_input_node; + +static __clib_unused u8 * +format_face_prod_input_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_face_prod_input_trace_t *t = + va_arg (*args, hicn_face_prod_input_trace_t *); + CLIB_UNUSED (u32 indent) = format_get_indent (s); + + s = format (s, "prod-face: sw_if_index %d next-index %d", + t->sw_if_index, t->next_index); + return s; +} + +static_always_inline int +match_ip4_name (u32 * name, hicn_prefix_t * prefix) +{ + u32 xor = 0; + + xor = *name & prefix->name.ip4.data_u32; + + return xor == prefix->name.ip4.data_u32; +} + +static_always_inline int +match_ip6_name (u32x4 * name, hicn_prefix_t * prefix) +{ + union + { + u32x4 as_u32x4; + u64 as_u64[2]; + u32 as_u32[4]; + } xor_sum __attribute__ ((aligned (sizeof (u32x4)))); + +#ifdef CLIB_HAVE_VEC128 + if (U32X4_ALIGNED (name)) + { //SSE can't handle unaligned data + xor_sum.as_u32x4 = *((u32x4 *) name) & + UNION_CAST (prefix->name.ip6.as_u64[0], u32x4); + } + else +#endif /* CLIB_HAVE_VEC128 */ + { + xor_sum.as_u64[0] = ((u64 *) name)[0] & prefix->name.ip6.as_u64[0]; + xor_sum.as_u64[1] = ((u64 *) name)[1] & prefix->name.ip6.as_u64[1]; + } + + return (xor_sum.as_u64[0] == prefix->name.ip6.as_u64[0]) && + (xor_sum.as_u64[1] == prefix->name.ip6.as_u64[1]); +} + +static_always_inline u32 +hicn_face_prod_next_from_data_hdr (vlib_node_runtime_t * node, + vlib_buffer_t * b, hicn_prefix_t * prefix) +{ + u8 *ptr = vlib_buffer_get_current (b); + u8 v = *ptr & 0xf0; + int match_res = 1; + + if (PREDICT_TRUE (v == 0x40 && ip46_address_is_ip4 (&prefix->name))) + { + match_res = match_ip4_name ((u32 *) & (ptr[12]), prefix); + } + else if (PREDICT_TRUE (v == 0x60 && !ip46_address_is_ip4 (&prefix->name))) + { + match_res = match_ip6_name ((u32x4 *) & (ptr[8]), prefix); + } + + b->error = 0*(1-match_res) + match_res*(node->errors[FACE_PROD_INPUT_ERROR_NOT_SOCK_PREFIX]); + + return match_res ? HICN_FACE_PROD_NEXT_DATA_IP4 + (v == + 0x60) : + HICN_FACE_PROD_NEXT_ERROR_DROP; +} + +static_always_inline void +hicn_face_prod_trace_buffer (vlib_main_t * vm, vlib_node_runtime_t * node, + u32 swif, vlib_buffer_t * b, u32 next) +{ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (b->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_face_prod_input_trace_t *t = + vlib_add_trace (vm, node, b, sizeof (*t)); + t->next_index = next; + t->sw_if_index = swif; + } +} + +static uword +hicn_face_prod_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next; + hicn_face_prod_next_t next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from >= 8 && n_left_to_next >= 4) + { + vlib_buffer_t *b0, *b1, *b2, *b3; + u32 bi0, bi1, bi2, bi3; + hicn_face_prod_state_t *prod_face0 = NULL; + hicn_face_prod_state_t *prod_face1 = NULL; + hicn_face_prod_state_t *prod_face2 = NULL; + hicn_face_prod_state_t *prod_face3 = NULL; + u32 next0, next1, next2, next3; + + { + vlib_buffer_t *b4, *b5, *b6, *b7; + b4 = vlib_get_buffer (vm, from[4]); + b5 = vlib_get_buffer (vm, from[5]); + b6 = vlib_get_buffer (vm, from[6]); + b7 = vlib_get_buffer (vm, from[7]); + CLIB_PREFETCH (b4, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b5, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b6, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b7, CLIB_CACHE_LINE_BYTES, STORE); + } + + bi0 = from[0]; + bi1 = from[1]; + bi2 = from[2]; + bi3 = from[3]; + + from += 4; + n_left_from -= 4; + to_next[0] = bi0; + to_next[1] = bi1; + to_next[2] = bi2; + to_next[3] = bi3; + + to_next += 4; + n_left_to_next -= 4; + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + b2 = vlib_get_buffer (vm, bi2); + b3 = vlib_get_buffer (vm, bi3); + + prod_face0 = + &face_state_vec[vnet_buffer (b0)->sw_if_index[VLIB_RX]]; + prod_face1 = + &face_state_vec[vnet_buffer (b1)->sw_if_index[VLIB_RX]]; + prod_face2 = + &face_state_vec[vnet_buffer (b2)->sw_if_index[VLIB_RX]]; + prod_face3 = + &face_state_vec[vnet_buffer (b3)->sw_if_index[VLIB_RX]]; + + next0 = + hicn_face_prod_next_from_data_hdr (node, b0, &prod_face0->prefix); + next1 = + hicn_face_prod_next_from_data_hdr (node, b1, &prod_face1->prefix); + next2 = + hicn_face_prod_next_from_data_hdr (node, b2, &prod_face2->prefix); + next3 = + hicn_face_prod_next_from_data_hdr (node, b3, &prod_face3->prefix); + stats.pkts_data_count += 4; + + /* trace */ + hicn_face_prod_trace_buffer (vm, node, + vnet_buffer (b0)->sw_if_index[VLIB_RX], + b0, next0); + hicn_face_prod_trace_buffer (vm, node, + vnet_buffer (b1)->sw_if_index[VLIB_RX], + b1, next1); + hicn_face_prod_trace_buffer (vm, node, + vnet_buffer (b2)->sw_if_index[VLIB_RX], + b2, next2); + hicn_face_prod_trace_buffer (vm, node, + vnet_buffer (b3)->sw_if_index[VLIB_RX], + b3, next3); + + /* enqueue */ + vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next, + n_left_to_next, bi0, bi1, bi2, bi3, + next0, next1, next2, next3); + + stats.pkts_processed += 4; + + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + vlib_buffer_t *b0; + u32 bi0, swif; + hicn_face_prod_state_t *prod_face = NULL; + u32 next0; + + if (n_left_from > 1) + { + vlib_buffer_t *b1; + b1 = vlib_get_buffer (vm, from[1]); + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); + } + + bi0 = from[0]; + from += 1; + n_left_from -= 1; + to_next[0] = bi0; + to_next += 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + swif = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + prod_face = &face_state_vec[swif]; + + next0 = + hicn_face_prod_next_from_data_hdr (node, b0, &prod_face->prefix); + stats.pkts_data_count++; + + /* trace */ + hicn_face_prod_trace_buffer (vm, node, + vnet_buffer (b0)->sw_if_index[VLIB_RX], + b0, next0); + + /* enqueue */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, bi0, next0); + + stats.pkts_processed += 1; + + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_PROCESSED, stats.pkts_processed); + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + vlib_node_increment_counter (vm, node->node_index, HICNFWD_ERROR_DATAS, + stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_face_prod_input_node) = +{ + .function = hicn_face_prod_input_node_fn, + .name = "hicn-face-prod-input", + .vector_size = sizeof(u32), + .format_trace = format_face_prod_input_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(face_prod_input_error_strings), + .error_strings = face_prod_input_error_strings, + .n_next_nodes = HICN_FACE_PROD_N_NEXT, + .next_nodes = + { + [HICN_FACE_PROD_NEXT_DATA_IP4] = "hicn-face-ip4-input", + [HICN_FACE_PROD_NEXT_DATA_IP6] = "hicn-face-ip6-input", + [HICN_FACE_PROD_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/face.c b/hicn-plugin/src/faces/face.c new file mode 100755 index 000000000..f0559bb98 --- /dev/null +++ b/hicn-plugin/src/faces/face.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "face.h" +#include "ip/face_ip.h" +#include "ip/face_ip_node.h" +#include "ip/iface_ip_node.h" +#include "ip/dpo_ip.h" +#include "udp/face_udp.h" +#include "udp/face_udp_node.h" +#include "udp/iface_udp_node.h" +#include "udp/dpo_udp.h" + +dpo_id_t *face_dpo_vec; +hicn_face_vft_t *face_vft_vec; +char **face_type_names_vec; + +hicn_face_t *hicn_dpoi_face_pool; + +dpo_type_t first_type = DPO_FIRST; + +u8 * +face_show (u8 * s, int face_id, u32 indent) +{ + s = format (s, "Faces:\n", indent); + indent += 4; + int i; + vec_foreach_index (i, face_dpo_vec) + { + s = + format (s, "%U", face_vft_vec[i].format_face, + face_dpo_vec[face_id].dpoi_index, indent); + } + + return (s); + +} + +void +register_face_type (hicn_face_type_t face_type, hicn_face_vft_t * vft, + char *name) +{ + if (first_type == DPO_FIRST) + first_type = face_type; + + int idx = face_type - first_type; + ASSERT (idx >= 0); + vec_validate (face_vft_vec, idx); + vec_validate (face_type_names_vec, idx); + + /* Copy the null char as well */ + char *name_str = (char *) malloc ((strlen (name) + 1) * sizeof (char)); + strcpy (name_str, name); + face_vft_vec[idx] = *vft; + face_type_names_vec[idx] = name_str; +} + +// Make this more flexible for future types face +void +hicn_face_module_init (vlib_main_t * vm) +{ + pool_validate (hicn_dpoi_face_pool); + + hicn_face_ip_init (vm); + hicn_iface_ip_init (vm); + hicn_face_udp_init (vm); + hicn_iface_udp_init (vm); +} + +u8 * +format_hicn_face_all (u8 * s, int n, ...) +{ + va_list ap; + va_start (ap, n); + u32 indent = va_arg (ap, u32); + + s = format (s, "Faces: %d\n", indent); + + hicn_face_t *face; + + /* *INDENT-OFF* */ + pool_foreach ( face, hicn_dpoi_face_pool, + { + hicn_face_vft_t * vft = hicn_face_get_vft(face->shared.face_type); + hicn_face_id_t face_id = hicn_dpoi_get_index(face); + s = format(s, "%U\n", vft->format_face, face_id, indent); + }); + /* *INDENT-ON* */ + + return s; +} + +hicn_face_vft_t * +hicn_face_get_vft (hicn_face_type_t face_type) +{ + int idx = face_type - first_type; + if (idx >= 0) + return &face_vft_vec[idx]; + else + return NULL; + +} + +int +hicn_face_del (hicn_face_id_t face_id) +{ + int ret = HICN_ERROR_NONE; + + if (pool_len (hicn_dpoi_face_pool) > face_id) + { + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + if (face->shared.locks == 0) + pool_put_index (hicn_dpoi_face_pool, face_id); + else + face->shared.flags |= HICN_FACE_FLAGS_DELETED; + } + else + ret = HICN_ERROR_FACE_NOT_FOUND; + + return ret; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/face.h b/hicn-plugin/src/faces/face.h new file mode 100755 index 000000000..2774d9a2e --- /dev/null +++ b/hicn-plugin/src/faces/face.h @@ -0,0 +1,240 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_FACE_H__ +#define __HICN_FACE_H__ + +#include <vnet/vnet.h> +#include <vlib/vlib.h> +#include <vnet/dpo/dpo.h> +#include <vnet/adj/adj_types.h> + +typedef u8 hicn_face_flags_t; +typedef index_t hicn_face_id_t; +typedef dpo_type_t hicn_face_type_t; + +/** + * @file + * + * @brief Face + * + * This file implements a general face type. A face is carried through nodes as a + * dpo. The face state (hicn_face_t) is the object pointed by the + * dpoi_index in the dpo_id_t (see + * https://docs.fd.io/vpp/18.07/d0/d37/dpo_8h_source.html). + * A face state that does not contain the indication of the l2 adjacency is an + * incomplete face (iface), otherwise it is considered to be complete. Each face type + * provide specific node for processing packets in input or output of complete + * and incomplete faces. + */ + +/** + * @brief Fields shared among all the different types of faces + */ +typedef struct __attribute__ ((packed)) hicn_face_shared_s +{ + /* Flags to idenfity if the face is incomplete (iface), complete (face) */ + /* And a network or application face (1B) */ + hicn_face_flags_t flags; + + /* Path label (2B) */ + u16 pl_id; + + /* Number of dpo holding a reference to the dpoi (4B) */ + u32 locks; + + /* Adjacency for the neighbor (4B) */ + adj_index_t adj; + + /* local interface for the local ip address */ + u32 sw_if; + + /* Face id corresponding to the global face pool (4B) */ + union + { + hicn_face_type_t face_type; + u32 int_face_type; //To forse the face_type_t to be 4B + }; + +} hicn_face_shared_t; + +/** + * @brief Structure holding the face state. It containes the fields shared among + * all the types of faces as well it leaves some space for storing additional + * information specific to each type. + */ +typedef struct __attribute__ ((packed)) hicn_face_s +{ + /* Additional space to fill with face_type specific information */ + u8 data[2 * CLIB_CACHE_LINE_BYTES - sizeof (hicn_face_shared_t)]; + hicn_face_shared_t shared; + +} + +hicn_face_t; + +/* Pool of faces */ +extern hicn_face_t *hicn_dpoi_face_pool; + +/* Flags */ +/* A face is complete and it stores all the information. A iface lacks of the + adj index, therefore sending a packet through a iface require a lookup in + the FIB. */ +#define HICN_FACE_FLAGS_DEFAULT 0x00 +#define HICN_FACE_FLAGS_FACE 0x01 +#define HICN_FACE_FLAGS_IFACE 0x02 +#define HICN_FACE_FLAGS_APPFACE_PROD 0x04 /* Currently only IP face can be appface */ +#define HICN_FACE_FLAGS_APPFACE_CONS 0x08 /* Currently only IP face can be appface */ +#define HICN_FACE_FLAGS_DELETED 0x10 + +#define HICN_FACE_NULL (hicn_face_id_t) ~0 + +/** + * @brief Definition of the virtual functin table for an hICN FACE DPO. + * + * An hICN dpo is a combination of a dpo context (hicn_dpo_ctx or struct that + * extends a hicn_dpo_ctx) and a strategy node. The following virtual function table + * template that glues together the fuction to interact with the context and the + * creating the dpo + */ +typedef struct hicn_face_vft_s +{ + u8 *(*format_face) (u8 * s, va_list * args); + /**< Format an hICN face dpo*/ + int (*hicn_face_del) (hicn_face_id_t face_id); + void (*hicn_face_get_dpo) (hicn_face_t * face, dpo_id_t * dpo); +} hicn_face_vft_t; + + +/* Vector maintaining a dpo per face */ +extern dpo_id_t *face_dpo_vec; +extern hicn_face_vft_t *face_vft_vec; + +/* Vector holding the set of face names */ +extern char **face_type_names_vec; + +/* First face type registered in the sytem.*/ +extern dpo_type_t first_type; + +/** + * @brief Return the face id from the face state + * + * @param Pointer to the face state + * @return face id + */ +always_inline hicn_face_id_t +hicn_dpoi_get_index (hicn_face_t * face_dpoi) +{ + return face_dpoi - hicn_dpoi_face_pool; +} + +/** + * @brief Return the face from the face id. Face id must be valid. + * + * @param dpoi_index Face identifier + * @return Pointer to the face + */ +always_inline hicn_face_t * +hicn_dpoi_get_from_idx (hicn_face_id_t dpoi_index) +{ + return (hicn_face_t *) pool_elt_at_index (hicn_dpoi_face_pool, dpoi_index); +} + +/** + * @brief Return true if the face id belongs to an existing face + */ +always_inline int +hicn_dpoi_idx_is_valid (hicn_face_id_t face_id) +{ + return pool_len (hicn_dpoi_face_pool) > face_id + && !pool_is_free_index (hicn_dpoi_face_pool, face_id); +} + +/** + * @brief Add a lock to the face dpo + * + * @param dpo Pointer to the face dpo + */ +always_inline void +hicn_face_lock (dpo_id_t * dpo) +{ + hicn_face_t *face; + face = hicn_dpoi_get_from_idx (dpo->dpoi_index); + face->shared.locks++; +} + +/** + * @brief Remove a lock to the face dpo. Deallocate the face id locks == 0 + * + * @param dpo Pointer to the face dpo + */ +always_inline void +hicn_face_unlock (dpo_id_t * dpo) +{ + hicn_face_t *face; + face = hicn_dpoi_get_from_idx (dpo->dpoi_index); + face->shared.locks--; +} + +/** + * @brief Init the internal structures of the face module + * + * Must be called before processing any packet + */ +void hicn_face_module_init (vlib_main_t * vm); + +/** + * @brief Format all the existing faces + * + * @param s Pointer to a previous string. If null it will be initialize + * @param n Number of input parameters + * @return String with the faces formatted + */ +u8 *format_hicn_face_all (u8 * s, int n, ...); + +/** + * @brief Delete a face + * + * @param face_id Id of the face to delete + * @return HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise + * HICN_ERROR_NONE + */ +int hicn_face_del (hicn_face_id_t face_id); + +/** + * @brief Return the virtual function table corresponding to the face type + * + * @param face_type Type of the face + * @return NULL if the face type does not exist + */ +hicn_face_vft_t *hicn_face_get_vft (hicn_face_type_t face_type); + +/** + * @brief Register a new face type + * + * @param face_type Type of the face + * @param vft Virtual Function table for the new face type + */ +void register_face_type (hicn_face_type_t face_type, hicn_face_vft_t * vft, + char *name); +#endif // __HICN_FACE_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/face_cli.c b/hicn-plugin/src/faces/face_cli.c new file mode 100755 index 000000000..3ddf96beb --- /dev/null +++ b/hicn-plugin/src/faces/face_cli.c @@ -0,0 +1,131 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> +#include <vppinfra/error.h> +#include "face.h" +#include "../error.h" + +static clib_error_t * +hicn_face_cli_show_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + + hicn_face_id_t face_id = HICN_FACE_NULL; + char *face_type_name = NULL; + int found = ~0; + int deleted = 0; + + + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (unformat_user (main_input, unformat_line_input, line_input)) + { + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "%u", &face_id)) + ; + else if (unformat (line_input, "type %s", &face_type_name)) + ; + else if (unformat (line_input, "deleted")) + deleted = 1; + else + { + return clib_error_return (0, "%s", + get_error_string + (HICN_ERROR_CLI_INVAL)); + } + } + + if (face_type_name != NULL) + { + int idx = 0; + vec_foreach_index (idx, face_type_names_vec) + { + if (!strcmp (face_type_names_vec[idx], face_type_name)) + found = idx; + } + if (found == ~0) + return (clib_error_return (0, "Face type unknown")); + } + + } + + if (face_id != HICN_FACE_NULL) + { + if (!hicn_dpoi_idx_is_valid (face_id)) + return clib_error_return (0, "%s", + get_error_string + (HICN_ERROR_FACE_NOT_FOUND)); + + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + hicn_face_vft_t *vft = hicn_face_get_vft (face->shared.face_type); + vlib_cli_output (vm, "%U\n", vft->format_face, face_id, 0 /*indent */ ); + } + else + { + if (found != ~0) + { + hicn_face_t *face; + dpo_type_t type = (dpo_type_t) (found + first_type); + hicn_face_vft_t *vft = hicn_face_get_vft (type); + /* *INDENT-OFF* */ + pool_foreach(face, hicn_dpoi_face_pool, + { + if (!((face->shared.flags & HICN_FACE_FLAGS_DELETED) && !deleted)) + { + if ((face->shared.face_type == type) && (face->shared.flags)) + vlib_cli_output(vm, "%U\n", vft->format_face, hicn_dpoi_get_index(face), 0); + } + }); + /* *INDENT-ON* */ + } + else + { + hicn_face_t *face; + /* *INDENT-OFF* */ + pool_foreach(face, hicn_dpoi_face_pool, + { + if (!((face->shared.flags & HICN_FACE_FLAGS_DELETED) && !deleted)) + { + hicn_face_vft_t * vft = hicn_face_get_vft(face->shared.face_type); + vlib_cli_output(vm, "%U\n", vft->format_face, hicn_dpoi_get_index(face), 0); + } + }); + /* *INDENT-ON* */ + } + } + + return 0; +} + +/* cli declaration for 'show faces' */ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (hicn_face_cli_show_command, static) = +{ + .path = "hicn face show", + .short_help = "hicn face show [<face_id>| type <ip/udp>]", + .function = hicn_face_cli_show_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/dpo_ip.c b/hicn-plugin/src/faces/ip/dpo_ip.c new file mode 100755 index 000000000..1b2dbcff9 --- /dev/null +++ b/hicn-plugin/src/faces/ip/dpo_ip.c @@ -0,0 +1,187 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "dpo_ip.h" + +mhash_t hicn_face_ip_local_hashtb; +mhash_t hicn_face_ip_remote_hashtb; +dpo_type_t hicn_face_ip_type; + +const static char *const hicn_face_ip4dpoi_nodes[] = { + "hicn-face-ip4-input", + "hicn-face-ip4-output", + "hicn-iface-ip4-input", + "hicn-iface-ip4-output", + NULL, +}; + +const static char *const hicn_face_ip6dpoi_nodes[] = { + "hicn-face-ip6-input", + "hicn-face-ip6-output", + "hicn-iface-ip6-input", + "hicn-iface-ip6-output", + NULL, +}; + +const static char *const *const hicn_ip_nodes[DPO_PROTO_NUM] = { + [DPO_PROTO_IP4] = hicn_face_ip4dpoi_nodes, + [DPO_PROTO_IP6] = hicn_face_ip6dpoi_nodes +}; + +const static dpo_vft_t hicn_face_ip_vft = { + .dv_lock = hicn_face_lock, + .dv_unlock = hicn_face_unlock, + .dv_format = format_hicn_face_ip, +}; + +/* Must be executed after all the strategy nodes are created */ +void +hicn_dpo_ip_module_init (void) +{ + mhash_init (&hicn_face_ip_local_hashtb, + sizeof (hicn_face_id_t) /* value */ , + sizeof (hicn_face_ip_key_t) /* key */ ); + mhash_init (&hicn_face_ip_remote_hashtb, + sizeof (hicn_face_id_t) /* value */ , + sizeof (hicn_face_ip_key_t) /* key */ ); + + /* + * How much useful is the following registration? + * So far it seems that we need it only for setting the dpo_type. + */ + hicn_face_ip_type = + dpo_register_new_type (&hicn_face_ip_vft, hicn_ip_nodes); +} + + +int +hicn_dpo_ip4_create (dpo_id_t * dpo, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id) +{ + /* If local matches the dpoi is a face */ + hicn_face_t *face = + hicn_face_ip4_get (local_addr, sw_if, &hicn_face_ip_local_hashtb); + u8 is_appface; + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + face = hicn_face_ip4_get (remote_addr, sw_if, &hicn_face_ip_remote_hashtb); + + if (face == NULL) + { + hicn_dpo_ip4_add_and_lock_from_remote (dpo, &is_appface, local_addr, + remote_addr, sw_if, node_index); + *face_id = (hicn_face_id_t) dpo->dpoi_index; + face = hicn_dpoi_get_from_idx (*face_id); + } + else + { + *face_id = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, *face_id); + dpo->dpoi_next_node = node_index; + } + + + hicn_face_ip_key_t key; + hicn_face_ip4_get_key (local_addr, sw_if, &key); + + mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) face_id, 0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + ip46_address_set_ip4 (&ip_face->local_addr, local_addr); + ip46_address_set_ip4 (&ip_face->remote_addr, remote_addr); + face->shared.flags = flags; + face->shared.adj = adj; + + return HICN_ERROR_NONE; +} + +int +hicn_dpo_ip6_create (dpo_id_t * dpo, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id) +{ + /* If local matches the dpoi is a face */ + hicn_face_t *face = + hicn_face_ip6_get (local_addr, sw_if, &hicn_face_ip_local_hashtb); + + u8 is_appface; + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + face = hicn_face_ip6_get (remote_addr, sw_if, &hicn_face_ip_remote_hashtb); + + /* If remote matches the dpoi is a iface */ + if (face == NULL) + { + hicn_dpo_ip6_add_and_lock_from_remote (dpo, &is_appface, local_addr, + remote_addr, sw_if, node_index); + *face_id = (hicn_face_id_t) dpo->dpoi_index; + face = hicn_dpoi_get_from_idx (*face_id); + } + else + { + *face_id = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP6, *face_id); + dpo->dpoi_next_node = node_index; + } + + hicn_face_ip_key_t key; + hicn_face_ip6_get_key (local_addr, sw_if, &key); + + mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) face_id, 0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + clib_memcpy (&ip_face->local_addr, local_addr, sizeof (ip6_address_t)); + clib_memcpy (&ip_face->remote_addr, remote_addr, sizeof (ip6_address_t)); + face->shared.sw_if = sw_if; + face->shared.flags = flags; + face->shared.adj = adj; + + + return HICN_ERROR_NONE; +} + +void +hicn_dpo_ip_create_from_face (hicn_face_t * face, dpo_id_t * dpo, + u16 dpoi_next_node) +{ + hicn_face_id_t face_dpoi_id = hicn_dpoi_get_index (face); + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + dpo_set (dpo, face->shared.face_type, + ip46_address_is_ip4 (&ip_face-> + local_addr) ? DPO_PROTO_IP4 : DPO_PROTO_IP6, + face_dpoi_id); + dpo->dpoi_next_node = dpoi_next_node; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/dpo_ip.h b/hicn-plugin/src/faces/ip/dpo_ip.h new file mode 100755 index 000000000..675443277 --- /dev/null +++ b/hicn-plugin/src/faces/ip/dpo_ip.h @@ -0,0 +1,255 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_DPO_IP_H__ +#define __HICN_DPO_IP_H__ + +#include <vnet/vnet.h> +#include <vnet/ip/ip4_packet.h> + +#include "face_ip.h" +#include "../face.h" + +/** + * @brief Initialize the internal structures of the dpo ip face module. + */ +void hicn_dpo_ip_module_init (void); + + +/** + * @brief Retrieve a face from the ip4 local address and returns its dpo. This + * method adds a lock on the face state. + * + * @param dpo: Result of the lookup. If the face doesn't exist dpo = NULL + * @param is_appface: Boolean that indicates whether the face is an application + * face or not + * @param local_addr: Ip v4 local address of the face + * @param sw_if: software interface id of the face + * + * @result HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise HICN_ERROR_NONE. + */ +always_inline int +hicn_dpo_ip4_lock_from_local (dpo_id_t * dpo, + u8 * is_appface, + const ip4_address_t * local_addr, u32 sw_if) +{ + hicn_face_t *face = + hicn_face_ip4_get (local_addr, sw_if, &hicn_face_ip_local_hashtb); + + if (PREDICT_FALSE (face == NULL)) + return HICN_ERROR_FACE_NOT_FOUND; + + *is_appface = face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = ~0; + dpo_lock (dpo); + + return HICN_ERROR_NONE; +} + +/** + * @brief Retrieve a face from the ip6 local address and returns its dpo. This + * method adds a lock on the face state. + * + * @param dpo: Result of the lookup. If the face doesn't exist dpo = NULL + * @param is_appface: Boolean that indicates whether the face is an application + * face or not + * @param local_addr: Ip v6 local address of the face + * @param sw_if: software interface id of the face + * + * @result HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise HICN_ERROR_NONE. + */ +always_inline int +hicn_dpo_ip6_lock_from_local (dpo_id_t * dpo, + u8 * is_appface, + const ip6_address_t * local_addr, u32 sw_if) +{ + hicn_face_t *face = + hicn_face_ip6_get (local_addr, sw_if, &hicn_face_ip_local_hashtb); + + if (PREDICT_FALSE (face == NULL)) + return HICN_ERROR_FACE_NOT_FOUND; + + *is_appface = face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP6, dpoi_index); + dpo->dpoi_next_node = ~0; + dpo_lock (dpo); + + return HICN_ERROR_NONE; +} + + +/** + * @brief Retrieve, or create if it doesn't exist, a face from the ip6 local + * address and returns its dpo. This method adds a lock on the face state. + * + * @param dpo: Result of the lookup + * @param is_appface: Boolean that indicates whether the face is an application + * face or not + * @param local_addr: Ip v4 local address of the face + * @param remote_addr: Ip v4 remote address of the face + * @param sw_if: software interface id of the face + * @param node_index: vlib edge index to use in the packet processing + */ +always_inline void +hicn_dpo_ip4_add_and_lock_from_remote (dpo_id_t * dpo, + u8 * is_appface, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u32 sw_if, u32 node_index) +{ + /*All (complete) faces are indexed by remote addess as well */ + hicn_face_t *face = + hicn_face_ip4_get (remote_addr, sw_if, &hicn_face_ip_remote_hashtb); + + if (face == NULL) + { + hicn_face_id_t dpoi_index; + ip46_address_t local_addr46 = to_ip46 (0, (u8 *) local_addr); + ip46_address_t remote_addr46 = to_ip46 (0, (u8 *) remote_addr); + hicn_iface_ip_add (&local_addr46, &remote_addr46, sw_if, &dpoi_index); + + *is_appface = 0; + + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); + + return; + } + + /* Code replicated on purpose */ + *is_appface = face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); +} + +/** + * @brief Retrieve, or create if it doesn't exist, a face from the ip6 local + * address and returns its dpo. This method adds a lock on the face state. + * + * @param dpo: Result of the lookup + * @param is_appface: Boolean that indicates whether the face is an application + * face or not + * @param local_addr: Ip v6 local address of the face + * @param remote_addr: Ip v6 remote address of the face + * @param sw_if: software interface id of the face + * @param node_index: vlib edge index to use in the packet processing + */ +always_inline void +hicn_dpo_ip6_add_and_lock_from_remote (dpo_id_t * dpo, + u8 * is_appface, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u32 sw_if, u32 node_index) +{ + /*All (complete) faces are indexed by remote addess as well */ + hicn_face_t *face = + hicn_face_ip6_get (remote_addr, sw_if, &hicn_face_ip_remote_hashtb); + + if (face == NULL) + { + hicn_face_id_t dpoi_index; + hicn_iface_ip_add ((ip46_address_t *) local_addr, + (ip46_address_t *) remote_addr, sw_if, &dpoi_index); + + *is_appface = 0; + + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); + + return; + } + /* Code replicated on purpose */ + *is_appface = face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD; + + index_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP6, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); +} + + +/** + * @brief Create an ip face and its corresponding dpo. Meant to be used for the + * control plane. + * + * @param dpo: Data plane object that point to the face created. + * @param local_addr: Ip v4 local address of the face + * @param remote_addr: Ip v4 remote address of the face + * @param sw_if: software interface id of the face + * @param adj: Ip adjacency corresponding to the remote address in the face + * @param node_index: vlib edge index to use in the packet processing + * @param flags: Flags of the face + * @param face_id: Identifier for the face (dpoi_index) + * @return HICN_ERROR_FACE_ALREADY_CREATED if the face exists, otherwise HICN_ERROR_NONE + */ +int hicn_dpo_ip4_create (dpo_id_t * dpo, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id); + +/** + * @brief Create an ip face and its corresponding dpo. Meant to be used for the + * control plane. + * + * @param dpo: Data plane object that point to the face created. + * @param local_addr: Ip v6 local address of the face + * @param remote_addr: Ip v6 remote address of the face + * @param sw_if: software interface id of the face + * @param adj: Ip adjacency corresponding to the remote address in the face + * @param node_index: vlib edge index to use in the packet processing + * @param flags: Flags of the face + * @param face_id: Identifier for the face (dpoi_index) + * @return HICN_ERROR_FACE_ALREADY_CREATED if the face exists, otherwise HICN_ERROR_NONE + */ +int hicn_dpo_ip6_create (dpo_id_t * dpo, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id); + +/** + * @brief Create a dpo from an ip face + * + * @param face Face from which to create the dpo + * @param dpoi_next_node Edge index that connects a node to the iface or face nodes + * @return the dpo + */ +void hicn_dpo_ip_create_from_face (hicn_face_t * face, dpo_id_t * dpo, + u16 dpoi_next_node); + +#endif // __HICN_DPO_IP_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/face_ip.c b/hicn-plugin/src/faces/ip/face_ip.c new file mode 100755 index 000000000..c7f6a1ba1 --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip.c @@ -0,0 +1,326 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "face_ip.h" +#include "face_ip_node.h" +#include "dpo_ip.h" +#include "../../strategy_dpo_manager.h" +#include "../face.h" +#include "../../cache_policies/cs_lru.h" +#include "../../infra.h" +#include "../../hicn.h" +#include "../app/face_prod.h" +#include "../app/face_cons.h" + +#include "../../mapme.h" // HICN_MAPME_EVENT_* +#include "../../mapme_eventmgr.h" // hicn_mapme_eventmgr_process_node + +extern vlib_node_registration_t hicn_mapme_eventmgr_process_node; + +u32 strategy_face_ip4_vlib_edge; +u32 strategy_face_ip6_vlib_edge; + +void +hicn_face_ip_init (vlib_main_t * vm) +{ + int strategy_nodes_n = hicn_strategy_get_all_available (); + + /* Default Strategy has index 0 and it always exists */ + strategy_face_ip4_vlib_edge = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft + (default_dpo. + hicn_dpo_get_type ())-> + get_strategy_node_index + (), + hicn_face_ip4_output_node. + index); + + strategy_face_ip6_vlib_edge = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft + (default_dpo. + hicn_dpo_get_type ())-> + get_strategy_node_index + (), + hicn_face_ip6_output_node. + index); + /* + * Create and edge between al the other strategy nodes + * and the ip_encap nodes. + */ + for (int i = 1; i < strategy_nodes_n; i++) + { + u32 temp_index4 = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft_from_id + (i)->get_strategy_node_index (), + hicn_face_ip4_output_node.index); + u32 temp_index6 = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft_from_id + (i)->get_strategy_node_index (), + hicn_face_ip6_output_node.index); + ASSERT (temp_index4 == strategy_face_ip4_vlib_edge); + ASSERT (temp_index6 == strategy_face_ip6_vlib_edge); + } + + hicn_dpo_ip_module_init (); + + register_face_type (hicn_face_ip_type, &ip_vft, "ip"); +} + +int +hicn_face_ip_del (hicn_face_id_t face_id) +{ + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + hicn_face_ip_t *face_ip = (hicn_face_ip_t *) face->data; + hicn_face_ip_key_t key; + hicn_face_ip_key_t old_key; + + if (ip46_address_is_ip4 (&face_ip->local_addr)) + { + hicn_face_ip4_get_key (&(face_ip->local_addr.ip4), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_local_hashtb, &key, (uword *) & old_key); + hicn_face_ip4_get_key (&(face_ip->remote_addr.ip4), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_remote_hashtb, &key, (uword *) & old_key); + } + else + { + hicn_face_ip6_get_key (&(face_ip->local_addr.ip6), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_local_hashtb, &key, (uword *) & old_key); + hicn_face_ip6_get_key (&(face_ip->remote_addr.ip6), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_remote_hashtb, &key, (uword *) & old_key); + } + return hicn_face_del (face_id); +} + + +/* + * Utility that adds a new face cache entry. For the moment we assume that the + * ip_adjacency has already been set up. + */ +int +hicn_face_ip_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, + int sw_if, hicn_face_id_t * pfaceid) +{ + fib_protocol_t fib_type; + vnet_link_t link_type; + adj_index_t adj; + dpo_proto_t dpo_proto; + + /* Check if we found at least one ip address */ + if (ip46_address_is_zero (local_addr) || ip46_address_is_zero (remote_addr)) + return HICN_ERROR_FACE_NO_GLOBAL_IP; + + if (ip46_address_is_ip4 (local_addr) && ip46_address_is_ip4 (remote_addr)) + { + link_type = VNET_LINK_IP4; + fib_type = FIB_PROTOCOL_IP4; + } + else + { + link_type = VNET_LINK_IP6; + fib_type = FIB_PROTOCOL_IP6; + } + + + adj = adj_nbr_add_or_lock (fib_type, link_type, remote_addr, sw_if); + + hicn_face_flags_t flags = (hicn_face_flags_t) 0; + flags |= HICN_FACE_FLAGS_FACE; + + hicn_face_t *face; + if (ip46_address_is_ip4 (local_addr)) + { + face = + hicn_face_ip4_get (&(local_addr->ip4), sw_if, + &hicn_face_ip_local_hashtb); + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + face = + hicn_face_ip4_get (&(remote_addr->ip4), sw_if, + &hicn_face_ip_remote_hashtb); + + /* If remote matches the face is a iface */ + if (face == NULL) + { + hicn_iface_ip_add (local_addr, remote_addr, sw_if, pfaceid); + face = hicn_dpoi_get_from_idx (*pfaceid); + } + else + { + *pfaceid = hicn_dpoi_get_index (face); + } + + hicn_face_ip_key_t key; + hicn_face_ip4_get_key (&(local_addr->ip4), sw_if, &key); + + mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) pfaceid, 0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + clib_memcpy (&ip_face->local_addr, local_addr, sizeof (ip4_address_t)); + clib_memcpy (&ip_face->remote_addr, remote_addr, + sizeof (ip4_address_t)); + face->shared.sw_if = sw_if; + face->shared.flags = flags; + face->shared.adj = adj; + + dpo_proto = DPO_PROTO_IP4; + } + else + { + face = + hicn_face_ip6_get (&(local_addr->ip6), sw_if, + &hicn_face_ip_local_hashtb); + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + face = + hicn_face_ip6_get (&(remote_addr->ip6), sw_if, + &hicn_face_ip_remote_hashtb); + + /* If remote matches the face is a iface */ + if (face == NULL) + { + hicn_iface_ip_add (local_addr, remote_addr, sw_if, pfaceid); + face = hicn_dpoi_get_from_idx (*pfaceid); + } + else + { + *pfaceid = hicn_dpoi_get_index (face); + } + + hicn_face_ip_key_t key; + hicn_face_ip6_get_key (&(local_addr->ip6), sw_if, &key); + + mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) pfaceid, 0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + clib_memcpy (&ip_face->local_addr, local_addr, sizeof (ip6_address_t)); + clib_memcpy (&ip_face->remote_addr, remote_addr, + sizeof (ip6_address_t)); + face->shared.sw_if = sw_if; + face->shared.flags = flags; + face->shared.adj = adj; + + dpo_proto = DPO_PROTO_IP6; + } + + retx_t *retx = vlib_process_signal_event_data (vlib_get_main (), + hicn_mapme_eventmgr_process_node. + index, + HICN_MAPME_EVENT_FACE_ADD, 1, + sizeof (retx_t)); + *retx = (retx_t) + { + .prefix = 0,.dpo = (dpo_id_t) + { + .dpoi_type = hicn_face_ip_type,.dpoi_proto = dpo_proto,.dpoi_next_node = + 0,.dpoi_index = *pfaceid,} + }; + + return HICN_ERROR_NONE; +} + +u8 * +format_hicn_face_ip (u8 * s, va_list * args) +{ + index_t index = va_arg (*args, index_t); + CLIB_UNUSED (u32 indent) = va_arg (*args, u32); + hicn_face_t *face; + hicn_face_ip_t *ip_face; + ip_adjacency_t *adj; + vnet_main_t *vnm = vnet_get_main (); + + face = hicn_dpoi_get_from_idx (index); + ip_face = (hicn_face_ip_t *) face->data; + + if (face->shared.flags & HICN_FACE_FLAGS_FACE) + { + ASSERT (face->shared.adj != (adj_index_t) ~ 0); + adj = adj_get (face->shared.adj); + + hicn_face_id_t face_id = hicn_dpoi_get_index (face); + s = format (s, "%U Face %d: ", format_white_space, indent, face_id); + s = format (s, "type IP local %U ", + format_ip46_address, &ip_face->local_addr, IP46_TYPE_ANY); + s = + format (s, "remote %U ", format_ip46_address, &ip_face->remote_addr, + IP46_TYPE_ANY); + s = format (s, "%U", format_vnet_link, adj->ia_link); + s = format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + + if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD)) + s = format (s, " %U", format_hicn_face_prod, face_id, 0); + else if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS)) + s = format (s, " %U", format_hicn_face_cons, face_id, 0); + + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + else + { + hicn_face_id_t face_id = hicn_dpoi_get_index (face); + s = format (s, "%U iFace %d: ", format_white_space, indent, face_id); + s = format (s, "type IP local %U remote %U", + format_ip46_address, &ip_face->local_addr, IP46_TYPE_ANY, + format_ip46_address, &ip_face->remote_addr, IP46_TYPE_ANY); + s = + format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + + if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD)) + s = format (s, " %U", format_hicn_face_prod, face_id, 0); + else if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS)) + s = format (s, " %U", format_hicn_face_cons, face_id, 0); + + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + + return s; +} + +void +hicn_face_ip_get_dpo (hicn_face_t * face, dpo_id_t * dpo) +{ + + hicn_face_ip_t *face_ip = (hicn_face_ip_t *) face->data; + return hicn_dpo_ip_create_from_face (face, dpo, + ip46_address_is_ip4 (&face_ip-> + remote_addr) ? + strategy_face_ip4_vlib_edge : + strategy_face_ip6_vlib_edge); +} + +hicn_face_vft_t ip_vft = { + .format_face = format_hicn_face_ip, + .hicn_face_del = hicn_face_ip_del, + .hicn_face_get_dpo = hicn_face_ip_get_dpo, +}; + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/face_ip.h b/hicn-plugin/src/faces/ip/face_ip.h new file mode 100755 index 000000000..8c31f6dd3 --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip.h @@ -0,0 +1,241 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_FACE_IP_H__ +#define __HICN_FACE_IP_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include "../face.h" +#include "../../cache_policies/cs_policy.h" + +/** + * @file + * + * @brief IP face + * + * A face is carried through nodes as a dpo. The face state is the object + * pointed by the dpoi_index in the dpo_id_t (see + * https://docs.fd.io/vpp/18.07/d0/d37/dpo_8h_source.html) + */ +typedef struct hicn_ip_face_t_ +{ + /** + * The headers to paint, in packet painting order + */ + /* Local address of the interface sw_if */ + ip46_address_t local_addr; + + /* Remote address of neighbor */ + ip46_address_t remote_addr; + +} hicn_face_ip_t; + + +/** + * Hash tables that indexes a face by local address. For fast lookup when an + * data arrives. + */ +extern mhash_t hicn_face_ip_local_hashtb; + +/** + * Hash tables that indexes a face by remote address. For fast lookup when an + * interest arrives. + */ +extern mhash_t hicn_face_ip_remote_hashtb; + +/** + * Key definition for the mhash table. An ip face is uniquely identified by ip + * address and the interface id. The ip address can correspond to the remote ip + * address of the next hicn hop, or to the local address of the receiving + * interface. The former is used to retrieve the incoming face when an interest + * is received, the latter when the arring packet is a data. + */ +typedef struct hicn_face_ip_key_s +{ + ip46_address_t addr; + u32 sw_if; +} hicn_face_ip_key_t; + + +extern hicn_face_type_t hicn_face_ip_type; +extern hicn_face_vft_t ip_vft; + +/** + * @brief Create the key object for the mhash. Fill in the key object with the + * expected values. + * + * @param addr Local or remote ip v6 address of the face + * @param sw_if interface associated to the face + * @param key Pointer to an allocated hicn_face_ip_key_t object + */ +always_inline void +hicn_face_ip6_get_key (const ip6_address_t * addr, + u32 sw_if, hicn_face_ip_key_t * key) +{ + key->addr.ip6 = *addr; + key->sw_if = sw_if; +} + + +/** + * @brief Create the key object for the mhash. Fill in the key object with the + * expected values. + * + * @param addr Local or remote ip v4 address of the face + * @param sw_if interface associated to the face + * @param key Pointer to an allocated hicn_face_ip_key_t object + */ +always_inline void +hicn_face_ip4_get_key (const ip4_address_t * addr, + u32 sw_if, hicn_face_ip_key_t * key) +{ + ip46_address_set_ip4 (&(key->addr), addr); + key->sw_if = sw_if; +} + +/** + * @brief Get the dpoi from the ip v4 address. Does not add any lock. + * + * @param addr Ip v4 address used to create the key for the hash table. + * @param sw_if Software interface id used to create the key for the hash table. + * @param hashtb Hash table (remote or local) where to perform the lookup. + * + * @result Pointer to the face. + */ +always_inline hicn_face_t * +hicn_face_ip4_get (const ip4_address_t * addr, u32 sw_if, mhash_t * hashtb) +{ + hicn_face_ip_key_t key; + + hicn_face_ip4_get_key (addr, sw_if, &key); + + hicn_face_id_t *dpoi_index = (hicn_face_id_t *) mhash_get (hashtb, + &key); + + return dpoi_index == NULL ? NULL : hicn_dpoi_get_from_idx (*dpoi_index); +} + +/** + * @brief Get the dpoi from the ip v6 address. Does not add any lock. + * + * @param addr Ip v6 address used to create the key for the hash table. + * @param sw_if Software interface id used to create the key for the hash table. + * @param hashtb Hash table (remote or local) where to perform the lookup. + * + * @result Pointer to the face. + */ +always_inline hicn_face_t * +hicn_face_ip6_get (const ip6_address_t * addr, u32 sw_if, mhash_t * hashtb) +{ + hicn_face_ip_key_t key; + + hicn_face_ip6_get_key (addr, sw_if, &key); + + hicn_face_id_t *dpoi_index = (hicn_face_id_t *) mhash_get (hashtb, + &key); + + return dpoi_index == NULL ? NULL : hicn_dpoi_get_from_idx (*dpoi_index); +} + +/** + * @brief Create a new face ip. API for other modules (e.g., routing) + * + * @param local_addr Local ip v4 or v6 address of the face + * @param remote_addr Remote ip v4 or v6 address of the face + * @param sw_if interface associated to the face + * @param is_app_face Boolean to set the face as an application face + * @param pfaceid Pointer to return the face id + * @return HICN_ERROR_FACE_NO_GLOBAL_IP if the face does not have a globally + * reachable ip address, otherwise HICN_ERROR_NONE + */ +int hicn_face_ip_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, + int swif, hicn_face_id_t * pfaceid); + +/** + * @brief Create a new incomplete face ip. (Meant to be used by the data plane) + * + * @param local_addr Local ip v4 or v6 address of the face + * @param remote_addr Remote ip v4 or v6 address of the face + * @param sw_if interface associated to the face + * @param pfaceid Pointer to return the face id + * @return HICN_ERROR_FACE_NO_GLOBAL_IP if the face does not have a globally + * reachable ip address, otherwise HICN_ERROR_NONE + */ +always_inline void +hicn_iface_ip_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, + int sw_if, hicn_face_id_t * pfaceid) +{ + hicn_face_t *face; + pool_get (hicn_dpoi_face_pool, face); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) (face->data); + + clib_memcpy (&(ip_face->local_addr.ip6), local_addr, + sizeof (ip6_address_t)); + clib_memcpy (&(ip_face->remote_addr.ip6), remote_addr, + sizeof (ip6_address_t)); + face->shared.sw_if = sw_if; + + face->shared.adj = ADJ_INDEX_INVALID; + face->shared.pl_id = (u16) 0; + face->shared.face_type = hicn_face_ip_type; + face->shared.flags = HICN_FACE_FLAGS_IFACE; + face->shared.locks = 0; + + hicn_face_ip_key_t key; + hicn_face_ip6_get_key (&(remote_addr->ip6), sw_if, &key); + *pfaceid = hicn_dpoi_get_index (face); + + mhash_set_mem (&hicn_face_ip_remote_hashtb, &key, (uword *) pfaceid, 0); +} + +/** + * @brief Delete an ip face + * + * @param face_id Id of the face to delete + * @return HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise + * HICN_ERROR_NONE + */ +int hicn_face_ip_del (hicn_face_id_t face_id); + +/** + * @brief Format a IP face + * + * @param s Pointer to a previous string. If null it will be initialize + * @param args Array storing input values. Expected u32 face_id and u32 indent + * @return String with the formatted face + */ +u8 *format_hicn_face_ip (u8 * s, va_list * args); + +/** + * @brief Create a dpo from an ip face + * + * @param face Face from which to create the dpo + * @return the dpo + */ +void hicn_face_ip_get_dpo (hicn_face_t * face, dpo_id_t * dpo); + +#endif // __HICN_FACE_IP_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/face_ip_cli.c b/hicn-plugin/src/faces/ip/face_ip_cli.c new file mode 100755 index 000000000..1558c82cb --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip_cli.c @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/vnet.h> +#include <vnet/dpo/dpo.h> +#include <vlib/vlib.h> + +#include "face_ip.h" +#include "dpo_ip.h" +#include "../face.h" + +#define HICN_FACE_NONE 0 +#define HICN_FACE_DELETE 1 +#define HICN_FACE_ADD 2 + +static clib_error_t * +hicn_face_ip_cli_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + vnet_main_t *vnm = vnet_get_main (); + ip46_address_t local_addr; + ip46_address_t remote_addr; + hicn_face_id_t face_id = HICN_FACE_NULL; + int app_face = 0; + u32 cs_reserved = HICN_PARAM_FACE_DFT_CS_RESERVED; + int ret = HICN_ERROR_NONE; + int sw_if; + int face_op = HICN_FACE_NONE; + + ip46_address_reset (&local_addr); + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return (0); + } + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "del")) + { + if (unformat (line_input, "id %d", &face_id)) + face_op = HICN_FACE_DELETE; + else + { + return clib_error_return (0, "missing face id"); + } + } + else if (unformat (line_input, "add")) + { + face_op = HICN_FACE_ADD; + if (unformat (line_input, "local %U remote %U intfc %U", + unformat_ip46_address, &local_addr, IP46_TYPE_ANY, + unformat_ip46_address, &remote_addr, IP46_TYPE_ANY, + unformat_vnet_sw_interface, vnm, &sw_if)); + else + { + return clib_error_return (0, "%s '%U'", + get_error_string + (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + else if (unformat (line_input, "app_face %d", &app_face)) + { + if (unformat (line_input, "cs_size %d", &cs_reserved)); + } + else + { + return clib_error_return (0, "%s '%U'", + get_error_string (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + + if (face_id != HICN_FACE_NULL) + { + + if (!hicn_dpoi_idx_is_valid (face_id)) + { + return clib_error_return (0, "%s, face_id %d not valid", + get_error_string (ret), face_id); + } + } + + int rv; + switch (face_op) + { + case HICN_FACE_ADD: + + /* Check for presence of next hop address */ + if ((remote_addr.as_u64[0] == (u64) 0) + && (remote_addr.as_u64[1] == (u64) 0)) + { + return clib_error_return (0, "next hop address not specified"); + } + + rv = hicn_face_ip_add (&local_addr, &remote_addr, sw_if, &face_id); + + if (rv == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Face id: %d", face_id); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + break; + case HICN_FACE_DELETE: + rv = hicn_face_ip_del (face_id); + if (rv == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Face %d deleted", face_id); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + break; + default: + return clib_error_return (0, "Operation (%d) not implemented", face_op); + break; + } + return (rv == HICN_ERROR_NONE) ? 0 : clib_error_return (0, "%s\n", + get_error_string + (rv)); +} + +/* cli declaration for 'cfg face' */ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (hicn_face_ip_cli_set_command, static) = +{ + .path = "hicn face ip", + .short_help = "hicn face ip {add local <local_address> remote <remote_address> intfc <sw_if>} {app_face <0/1>} {cs_size <size_in_packets>} | {del id <face_id>}", + .function = hicn_face_ip_cli_set_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/face_ip_node.c b/hicn-plugin/src/faces/ip/face_ip_node.c new file mode 100755 index 000000000..6081e4737 --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip_node.c @@ -0,0 +1,761 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/adj/adj.h> + +#include "face_ip.h" +#include "face_ip_node.h" +#include "dpo_ip.h" +#include "../../strategy_dpo_manager.h" +#include "../face.h" +#include "../../cache_policies/cs_lru.h" +#include "../../infra.h" +#include "../../hicn.h" + +/** + * @File + * + * Definition of the nodes for ip incomplete faces. + */ + +vlib_node_registration_t hicn_face_ip4_input_node; +vlib_node_registration_t hicn_face_ip4_output_node; +vlib_node_registration_t hicn_face_ip6_input_node; +vlib_node_registration_t hicn_face_ip6_output_node; + +#define ip_v4 4 +#define ip_v6 6 + +static char *hicn_face_ip4_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_face_ip6_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_ip4_input_trace_t; + +typedef enum +{ + HICN_FACE_IP4_INPUT_NEXT_DATA, + HICN_FACE_IP4_INPUT_NEXT_MAPME, + HICN_FACE_IP4_INPUT_NEXT_ERROR_DROP, + HICN_FACE_IP4_INPUT_N_NEXT, +} hicn_face_ip4_input_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_ip6_input_trace_t; + +typedef enum +{ + HICN_FACE_IP6_INPUT_NEXT_DATA, + HICN_FACE_IP6_INPUT_NEXT_MAPME, + HICN_FACE_IP6_INPUT_NEXT_ERROR_DROP, + HICN_FACE_IP6_INPUT_N_NEXT, +} hicn_face_ip6_input_next_t; + +#define NEXT_MAPME_IP4 HICN_FACE_IP4_INPUT_NEXT_MAPME +#define NEXT_MAPME_IP6 HICN_FACE_IP6_INPUT_NEXT_MAPME +#define NEXT_DATA_IP4 HICN_FACE_IP4_INPUT_NEXT_DATA +#define NEXT_DATA_IP6 HICN_FACE_IP6_INPUT_NEXT_DATA + +#define NEXT_ERROR_DROP_IP4 HICN_FACE_IP4_INPUT_NEXT_ERROR_DROP +#define NEXT_ERROR_DROP_IP6 HICN_FACE_IP6_INPUT_NEXT_ERROR_DROP + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define LOCK_FROM_LOCAL_IP4 hicn_dpo_ip4_lock_from_local +#define LOCK_FROM_LOCAL_IP6 hicn_dpo_ip6_lock_from_local + +#define TRACE_INPUT_PKT_IP4 hicn_face_ip4_input_trace_t +#define TRACE_INPUT_PKT_IP6 hicn_face_ip6_input_trace_t + +/* + * NOTE: Both hicn_face_ip4_input_node_fn and hicn_face_ip6_input_node_fn + * present a similar codebase. Macro are hard to debug, although the + * followind code is pretty straighforward and most of the complexity is in + * functions that can be easily debug. + */ +#define face_input_x1(ipv) \ + do{ \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = NEXT_ERROR_DROP_IP##ipv; \ + IP_HEADER_##ipv * ip_hdr = NULL; \ + hicn_buffer_t * hicnb0; \ + int ret; \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + hicnb0 = hicn_get_buffer(b0); \ + ip_hdr = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + \ + u8 is_icmp = ip_hdr->protocol == IPPROTO_ICMPV##ipv; \ + \ + next0 = is_icmp*NEXT_MAPME_IP##ipv + \ + (1-is_icmp)*NEXT_DATA_IP##ipv; \ + \ + ret = LOCK_FROM_LOCAL_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &hicnb0->is_appface, \ + &(ip_hdr->dst_address), \ + vnet_buffer (b0)->sw_if_index[VLIB_RX]); \ + \ + if ( PREDICT_FALSE(ret != HICN_ERROR_NONE) ) \ + next0 = NEXT_ERROR_DROP_IP##ipv; \ + else \ + stats.pkts_data_count += 1; \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, next0); \ + }while(0) + + +#define face_input_x2(ipv) \ + do{ \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = NEXT_ERROR_DROP_IP##ipv; \ + u32 next1 = NEXT_ERROR_DROP_IP##ipv; \ + IP_HEADER_##ipv * ip_hdr0 = NULL; \ + IP_HEADER_##ipv * ip_hdr1 = NULL; \ + hicn_buffer_t * hicnb0; \ + hicn_buffer_t * hicnb1; \ + int ret0, ret1; \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + hicnb0 = hicn_get_buffer(b0); \ + hicnb1 = hicn_get_buffer(b1); \ + ip_hdr0 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + ip_hdr1 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b1); \ + \ + u8 is_icmp0 = ip_hdr0->protocol == IPPROTO_ICMPV##ipv; \ + u8 is_icmp1 = ip_hdr1->protocol == IPPROTO_ICMPV##ipv; \ + \ + next0 = is_icmp0*NEXT_MAPME_IP##ipv + \ + (1-is_icmp0)*NEXT_DATA_IP##ipv; \ + \ + next1 = is_icmp1*NEXT_MAPME_IP##ipv + \ + (1-is_icmp1)*NEXT_DATA_IP##ipv; \ + \ + \ + ret0 = LOCK_FROM_LOCAL_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &hicnb0->is_appface, \ + &(ip_hdr0->dst_address), \ + vnet_buffer (b0)->sw_if_index[VLIB_RX]); \ + \ + ret1 = LOCK_FROM_LOCAL_IP##ipv \ + (&(hicnb1->face_dpo_id), \ + &hicnb1->is_appface, \ + &(ip_hdr1->dst_address), \ + vnet_buffer (b1)->sw_if_index[VLIB_RX]); \ + \ + if ( PREDICT_FALSE(ret0 != HICN_ERROR_NONE) ) \ + next0 = NEXT_ERROR_DROP_IP##ipv; \ + else \ + stats.pkts_data_count += 1; \ + \ + if ( PREDICT_FALSE(ret1 != HICN_ERROR_NONE) ) \ + next1 = NEXT_ERROR_DROP_IP##ipv; \ + else \ + stats.pkts_data_count += 1; \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0) + + +static uword +hicn_face_ip4_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_input_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_input_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_ip4_input_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_face_ip4_input_trace_t *t = + va_arg (*args, hicn_face_ip4_input_trace_t *); + + s = format (s, "FACE_IP4_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_face_ip4_input_node) = +{ + .function = hicn_face_ip4_input_node_fn, + .name = "hicn-face-ip4-input", + .vector_size = sizeof(u32), + .format_trace = hicn_face_ip4_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_face_ip4_input_error_strings), + .error_strings = hicn_face_ip4_input_error_strings, + .n_next_nodes = HICN_FACE_IP4_INPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_FACE_IP4_INPUT_NEXT_DATA] = "hicn-data-pcslookup", + [HICN_FACE_IP4_INPUT_NEXT_MAPME] = "hicn-mapme-ack", + [HICN_FACE_IP4_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/** + * @brief IPv6 face input node function + * @see hicn_face_ip4_input_node_fn + */ +static uword +hicn_face_ip6_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_input_x2 (6); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_input_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_ip6_input_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_face_ip6_input_trace_t *t = + va_arg (*args, hicn_face_ip6_input_trace_t *); + + s = format (s, "FACE_IP6_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_face_ip6_input_node) = +{ + .function = hicn_face_ip6_input_node_fn, + .name = "hicn-face-ip6-input", + .vector_size = sizeof(u32), + .format_trace = hicn_face_ip6_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_face_ip6_input_error_strings), + .error_strings = hicn_face_ip6_input_error_strings, + .n_next_nodes = HICN_FACE_IP6_INPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_FACE_IP6_INPUT_NEXT_DATA] = "hicn-data-pcslookup", + [HICN_FACE_IP6_INPUT_NEXT_MAPME] = "hicn-mapme-ack", + [HICN_FACE_IP6_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/**** FACE OUTPUT *****/ + +static inline void +hicn_face_rewrite_interest (vlib_main_t * vm, vlib_buffer_t * b0, + const hicn_face_t * face, u32 * next) +{ + ip_adjacency_t *adj = adj_get (face->shared.adj); + + /* We assume the ip adjacency has already the MAC/link layer address */ + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = face->shared.adj; + hicn_header_t *hicn = vlib_buffer_get_current (b0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + + ip46_address_t temp_addr; + ip46_address_reset (&temp_addr); + hicn_type_t type = hicn_get_buffer (b0)->type; + hicn_ops_vft[type.l1]->rewrite_interest (type, &hicn->protocol, + &ip_face->local_addr, &temp_addr); + + /* We rewrite the dst address to send an arp/neighbour discovert request */ + if (PREDICT_FALSE + (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP + || adj->lookup_next_index == IP_LOOKUP_NEXT_GLEAN)) + hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol, + &ip_face->remote_addr, &temp_addr, + 0); + + *next = adj->lookup_next_index; +} + +static char *hicn_face_ip4_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_face_ip6_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_ip4_output_trace_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_ip6_output_trace_t; + +#define TRACE_OUTPUT_PKT_IP4 hicn_face_ip4_output_trace_t +#define TRACE_OUTPUT_PKT_IP6 hicn_face_ip6_output_trace_t + +#define face_output_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = IP_LOOKUP_NEXT_DROP; \ + hicn_face_t * face; \ + \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , STORE); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + \ + face = \ + hicn_dpoi_get_from_idx (vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face != NULL)) \ + { \ + hicn_face_rewrite_interest \ + (vm, b0, face, &next0); \ + stats.pkts_interest_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, next0); \ + }while(0) + +#define face_output_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = IP_LOOKUP_NEXT_DROP; \ + u32 next1 = IP_LOOKUP_NEXT_DROP; \ + hicn_face_t *face0, *face1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , STORE); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , STORE); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + \ + face0 = \ + hicn_dpoi_get_from_idx (vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + face1 = \ + hicn_dpoi_get_from_idx (vnet_buffer (b1)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face0 != NULL)) \ + { \ + hicn_face_rewrite_interest \ + (vm, b0, face0, &next0); \ + stats.pkts_interest_count += 1; \ + } \ + \ + if (PREDICT_TRUE(face1 != NULL)) \ + { \ + hicn_face_rewrite_interest \ + (vm, b1, face1, &next1); \ + stats.pkts_interest_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0) + + +static uword +hicn_face_ip4_output_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_output_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_output_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_ip4_output_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_face_ip4_output_trace_t *t = + va_arg (*args, hicn_face_ip4_output_trace_t *); + + s = format (s, "FACE_IP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_face_ip4_output_node) = +{ + .function = hicn_face_ip4_output_node_fn, + .name = "hicn-face-ip4-output", + .vector_size = sizeof(u32), + .format_trace = hicn_face_ip4_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_face_ip4_output_error_strings), + .error_strings = hicn_face_ip4_output_error_strings, + .n_next_nodes = IP4_LOOKUP_N_NEXT, + /* Reusing the list of nodes from lookup to be compatible with arp */ + .next_nodes = IP4_LOOKUP_NEXT_NODES, +}; +/* *INDENT-ON* */ + + +static uword +hicn_face_ip6_output_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_output_x2 (6); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_output_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_ip6_output_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_face_ip6_output_trace_t *t = + va_arg (*args, hicn_face_ip6_output_trace_t *); + + s = format (s, "FACE_IP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_face_ip6_output_node) = +{ + .function = hicn_face_ip6_output_node_fn, + .name = "hicn-face-ip6-output", + .vector_size = sizeof(u32), + .format_trace = hicn_face_ip6_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_face_ip6_output_error_strings), + .error_strings = hicn_face_ip6_output_error_strings, + .n_next_nodes = IP6_LOOKUP_N_NEXT, + /* Reusing the list of nodes from lookup to be compatible with neighbour discovery */ + .next_nodes = IP6_LOOKUP_NEXT_NODES, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/face_ip_node.h b/hicn-plugin/src/faces/ip/face_ip_node.h new file mode 100755 index 000000000..000395a04 --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip_node.h @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_FACE_IP_NODE_H__ +#define __HICN_FACE_IP_NODE_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +extern vlib_node_registration_t hicn_face_ip4_input_node; +extern vlib_node_registration_t hicn_face_ip4_output_node; +extern vlib_node_registration_t hicn_face_ip6_input_node; +extern vlib_node_registration_t hicn_face_ip6_output_node; + +/** + * @brief Initialize the ip face module + */ +void hicn_face_ip_init (vlib_main_t * vm); + +#endif // __HICN_FACE_IP_NODE_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/iface_ip_node.c b/hicn-plugin/src/faces/ip/iface_ip_node.c new file mode 100755 index 000000000..8df0467f0 --- /dev/null +++ b/hicn-plugin/src/faces/ip/iface_ip_node.c @@ -0,0 +1,845 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <hicn/hicn.h> +#include "face_ip.h" +#include "dpo_ip.h" +#include "../../strategy_dpo_manager.h" +#include "../face.h" +#include "../../infra.h" +#include "../../cache_policies/cs_lru.h" + +/** + * @File + * + * Definition of the nodes for ip incomplete faces. + */ + +vlib_node_registration_t hicn_iface_ip4_input_node; +vlib_node_registration_t hicn_iface_ip4_output_node; +vlib_node_registration_t hicn_iface_ip6_input_node; +vlib_node_registration_t hicn_iface_ip6_output_node; + +u32 data_fwd_iface_ip4_vlib_edge; +u32 data_fwd_iface_ip6_vlib_edge; + +void +hicn_iface_ip_init (vlib_main_t * vm) +{ + u32 temp_index4 = vlib_node_add_next (vm, + hicn_interest_hitcs_node.index, + hicn_iface_ip4_output_node.index); + u32 temp_index6 = vlib_node_add_next (vm, + hicn_interest_hitcs_node.index, + hicn_iface_ip6_output_node.index); + + data_fwd_iface_ip4_vlib_edge = vlib_node_add_next (vm, + hicn_data_fwd_node.index, + hicn_iface_ip4_output_node. + index); + + data_fwd_iface_ip6_vlib_edge = vlib_node_add_next (vm, + hicn_data_fwd_node.index, + hicn_iface_ip6_output_node. + index); + + ASSERT (temp_index4 == data_fwd_iface_ip4_vlib_edge); + ASSERT (temp_index6 == data_fwd_iface_ip6_vlib_edge); +} + +static char *hicn_iface_ip4_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_iface_ip6_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_ip4_input_trace_t; + +typedef enum +{ + HICN_IFACE_IP4_INPUT_NEXT_INTEREST, + HICN_IFACE_IP4_INPUT_NEXT_MAPME, + HICN_IFACE_IP4_INPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP4_INPUT_N_NEXT, +} hicn_iface_ip4_input_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_ip6_input_trace_t; + +typedef enum +{ + HICN_IFACE_IP6_INPUT_NEXT_INTEREST, + HICN_IFACE_IP6_INPUT_NEXT_MAPME, + HICN_IFACE_IP6_INPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP6_INPUT_N_NEXT, +} hicn_iface_ip6_input_next_t; + +#define NEXT_MAPME_IP4 HICN_IFACE_IP4_INPUT_NEXT_MAPME +#define NEXT_MAPME_IP6 HICN_IFACE_IP6_INPUT_NEXT_MAPME + +#define NEXT_INTEREST_IP4 HICN_IFACE_IP6_INPUT_NEXT_INTEREST +#define NEXT_INTEREST_IP6 HICN_IFACE_IP6_INPUT_NEXT_INTEREST + +#define ADDRESS_IP4 ip_interface_address_t *ia = 0;ip4_address_t *local_address = ip4_interface_first_address(&ip4_main, swif, &ia) +#define ADDRESS_IP6 ip6_address_t *local_address = ip6_interface_first_address(&ip6_main, swif) + +#define ADDRESSX2_IP4 ip_interface_address_t *ia0, *ia1; ia0 = ia1 = 0; \ + ip4_address_t *local_address0 = ip4_interface_first_address(&ip4_main, swif0, &ia0); \ + ip4_address_t *local_address1 = ip4_interface_first_address(&ip4_main, swif1, &ia1); + +#define ADDRESSX2_IP6 ip6_address_t *local_address0 = ip6_interface_first_address(&ip6_main, swif0); \ + ip6_address_t *local_address1 = ip6_interface_first_address(&ip6_main, swif1); + +#define DPO_ADD_LOCK_IP4 hicn_dpo_ip4_add_and_lock_from_remote +#define DPO_ADD_LOCK_IP6 hicn_dpo_ip6_add_and_lock_from_remote + +#define VLIB_EDGE_IP4 data_fwd_iface_ip4_vlib_edge +#define VLIB_EDGE_IP6 data_fwd_iface_ip6_vlib_edge + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define TRACE_INPUT_PKT_IP4 hicn_iface_ip4_input_trace_t +#define TRACE_INPUT_PKT_IP6 hicn_iface_ip6_input_trace_t + +#define iface_input_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0, next0; \ + IP_HEADER_##ipv * ip_hdr = NULL; \ + hicn_buffer_t * hicnb0; \ + u32 swif; \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + hicnb0 = hicn_get_buffer(b0); \ + ip_hdr = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + \ + stats.pkts_interest_count += 1; \ + \ + u8 is_icmp = ip_hdr->protocol == IPPROTO_ICMPV##ipv; \ + \ + next0 = is_icmp*NEXT_MAPME_IP##ipv + \ + (1-is_icmp)*NEXT_INTEREST_IP##ipv; \ + \ + swif = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + \ + ADDRESS_IP##ipv; \ + \ + DPO_ADD_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &hicnb0->is_appface, \ + local_address, \ + &(ip_hdr->src_address), \ + vnet_buffer(b0)->sw_if_index[VLIB_RX], \ + VLIB_EDGE_IP##ipv); \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, next0); \ + }while(0) + + +#define iface_input_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1, next0, next1; \ + IP_HEADER_##ipv * ip_hdr0 = NULL; \ + IP_HEADER_##ipv * ip_hdr1 = NULL; \ + hicn_buffer_t *hicnb0, *hicnb1; \ + u32 swif0, swif1; \ + \ + /* Prefetch for next iteration. */ \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + hicnb0 = hicn_get_buffer(b0); \ + hicnb1 = hicn_get_buffer(b1); \ + ip_hdr0 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + ip_hdr1 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b1); \ + \ + stats.pkts_interest_count += 2; \ + \ + u8 is_icmp0 = ip_hdr0->protocol == IPPROTO_ICMPV##ipv; \ + u8 is_icmp1 = ip_hdr1->protocol == IPPROTO_ICMPV##ipv; \ + \ + next0 = is_icmp0*NEXT_MAPME_IP##ipv + \ + (1-is_icmp0)*NEXT_INTEREST_IP##ipv; \ + \ + next1 = is_icmp1*NEXT_MAPME_IP##ipv + \ + (1-is_icmp1)*NEXT_INTEREST_IP##ipv; \ + \ + swif0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + swif1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + \ + ADDRESSX2_IP##ipv; \ + \ + DPO_ADD_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &hicnb0->is_appface, \ + local_address0, \ + &(ip_hdr0->src_address), \ + vnet_buffer(b0)->sw_if_index[VLIB_RX], \ + VLIB_EDGE_IP##ipv); \ + \ + DPO_ADD_LOCK_IP##ipv \ + (&(hicnb1->face_dpo_id), \ + &hicnb1->is_appface, \ + local_address1, \ + &(ip_hdr1->src_address), \ + vnet_buffer(b1)->sw_if_index[VLIB_RX], \ + VLIB_EDGE_IP##ipv); \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0) + +static uword +hicn_iface_ip4_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_input_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_input_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_ip4_input_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_iface_ip4_input_trace_t *t = + va_arg (*args, hicn_iface_ip4_input_trace_t *); + + s = format (s, "IFACE_IP4_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip4_input_node) = +{ + .function = hicn_iface_ip4_input_node_fn, + .name = "hicn-iface-ip4-input", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip4_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip4_input_error_strings), + .error_strings = hicn_iface_ip4_input_error_strings, + .n_next_nodes = HICN_IFACE_IP4_INPUT_N_NEXT, + /* edit / add dispositions*/ + .next_nodes = + { + [HICN_IFACE_IP4_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup", + [HICN_IFACE_IP4_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl", + [HICN_IFACE_IP4_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +static uword +hicn_iface_ip6_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_input_x2 (6); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_input_x1 (6); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_ip6_input_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_iface_ip6_input_trace_t *t = + va_arg (*args, hicn_iface_ip6_input_trace_t *); + + s = format (s, "IFACE_IP6_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip6_input_node) = +{ + .function = hicn_iface_ip6_input_node_fn, + .name = "hicn-iface-ip6-input", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip6_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip6_input_error_strings), + .error_strings = hicn_iface_ip6_input_error_strings, + .n_next_nodes = HICN_IFACE_IP6_INPUT_N_NEXT, + /* edit / add dispositions*/ + .next_nodes = + { + [HICN_IFACE_IP6_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup", + [HICN_IFACE_IP6_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl", + [HICN_IFACE_IP6_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +/**** IFACE OUTPUT *****/ + +static inline void +hicn_rewrite_iface_data4 (vlib_main_t * vm, vlib_buffer_t * b0, + const hicn_face_t * iface) +{ + ip4_header_t *ip0; + + /* Get the pointer to the old ip and tcp header */ + ip0 = vlib_buffer_get_current (b0); + + /* Set up the ip6 header */ + /* IP4 lenght contains the size of the ip4 header too */ + u16 sval = (vlib_buffer_length_in_chain (vm, b0)); + ip0->length = clib_host_to_net_u16 (sval); + ip0->ttl = 254; // FIXME TTL + + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = ~0; + hicn_header_t *hicn = vlib_buffer_get_current (b0); + + ip46_address_t temp_addr; + ip46_address_reset (&temp_addr); + hicn_face_ip_t *iface_ip = (hicn_face_ip_t *) iface->data; + hicn_type_t type = hicn_get_buffer (b0)->type; + hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol, + &(iface_ip->remote_addr), &(temp_addr), + iface->shared.pl_id); +} + +static inline void +hicn_rewrite_iface_data6 (vlib_main_t * vm, vlib_buffer_t * b0, + const hicn_face_t * iface) +{ + ip6_header_t *ip0; + + /* Get the pointer to the old ip and tcp header */ + /* Copy the previous ip and tcp header to the new portion of memory */ + ip0 = vlib_buffer_get_current (b0); + + /* Set up the ip6 header */ + /* IP6 lenght does not include the size of the ip6 header */ + u16 sval = (vlib_buffer_length_in_chain (vm, b0) - (sizeof (ip6_header_t))); + ip0->payload_length = clib_host_to_net_u16 (sval); + ip0->hop_limit = HICN_IP6_HOP_LIMIT; + + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = ~0; + hicn_header_t *hicn = vlib_buffer_get_current (b0); + + ip46_address_t temp_addr; + ip46_address_reset (&temp_addr); + hicn_face_ip_t *iface_ip = (hicn_face_ip_t *) iface->data; + hicn_type_t type = hicn_get_buffer (b0)->type; + hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol, + &(iface_ip->remote_addr), &(temp_addr), + iface->shared.pl_id); +} + +static char *hicn_iface_ip4_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_iface_ip6_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_ip4_output_trace_t; + +typedef enum +{ + HICN_IFACE_IP4_OUTPUT_NEXT_LOOKUP, + HICN_IFACE_IP4_OUTPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP4_OUTPUT_N_NEXT, +} hicn_iface_ip4_output_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_ip6_output_trace_t; + +typedef enum +{ + HICN_IFACE_IP6_OUTPUT_NEXT_LOOKUP, + HICN_IFACE_IP6_OUTPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP6_OUTPUT_N_NEXT, +} hicn_iface_ip6_output_next_t; + +#define ERROR_OUTPUT_IP4 HICN_IFACE_IP4_OUTPUT_NEXT_ERROR_DROP +#define ERROR_OUTPUT_IP6 HICN_IFACE_IP6_OUTPUT_NEXT_ERROR_DROP + +#define NEXT_DATA_LOOKUP_IP4 HICN_IFACE_IP4_OUTPUT_NEXT_LOOKUP +#define NEXT_DATA_LOOKUP_IP6 HICN_IFACE_IP6_OUTPUT_NEXT_LOOKUP + +#define HICN_REWRITE_DATA_IP4 hicn_rewrite_iface_data4 +#define HICN_REWRITE_DATA_IP6 hicn_rewrite_iface_data6 + +#define TRACE_OUTPUT_PKT_IP4 hicn_iface_ip4_output_trace_t +#define TRACE_OUTPUT_PKT_IP6 hicn_iface_ip6_output_trace_t + +#define iface_output_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = ERROR_OUTPUT_IP##ipv; \ + hicn_face_t * face; \ + \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , STORE); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + \ + face = \ + hicn_dpoi_get_from_idx (vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face != NULL)) \ + { \ + HICN_REWRITE_DATA_IP##ipv \ + (vm, b0, face); \ + next0 = NEXT_DATA_LOOKUP_IP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, next0); \ + }while(0); \ + + +#define iface_output_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = ERROR_OUTPUT_IP##ipv; \ + u32 next1 = ERROR_OUTPUT_IP##ipv; \ + hicn_face_t *face0, *face1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , STORE); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , STORE); \ + } \ + \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + \ + face0 = \ + hicn_dpoi_get_from_idx (vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + face1 = \ + hicn_dpoi_get_from_idx (vnet_buffer (b1)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face0 != NULL)) \ + { \ + HICN_REWRITE_DATA_IP##ipv \ + (vm, b0, face0); \ + next0 = NEXT_DATA_LOOKUP_IP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_TRUE(face1 != NULL)) \ + { \ + HICN_REWRITE_DATA_IP##ipv \ + (vm, b1, face1); \ + next1 = NEXT_DATA_LOOKUP_IP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0); \ + + + +static uword +hicn_iface_ip4_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_output_x2 (4); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_output_x1 (4); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_ip4_output_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_iface_ip4_output_trace_t *t = + va_arg (*args, hicn_iface_ip4_output_trace_t *); + + s = format (s, "IFACE_IP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip4_output_node) = +{ + .function = hicn_iface_ip4_output_node_fn, + .name = "hicn-iface-ip4-output", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip4_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip4_output_error_strings), + .error_strings = hicn_iface_ip4_output_error_strings, + .n_next_nodes = HICN_IFACE_IP4_OUTPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_IFACE_IP4_OUTPUT_NEXT_LOOKUP] = "ip4-lookup", + [HICN_IFACE_IP4_OUTPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +static uword +hicn_iface_ip6_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_output_x2 (6); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_output_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_ip6_output_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_iface_ip6_output_trace_t *t = + va_arg (*args, hicn_iface_ip6_output_trace_t *); + + s = format (s, "IFACE_IP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip6_output_node) = +{ + .function = hicn_iface_ip6_output_node_fn, + .name = "hicn-iface-ip6-output", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip6_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip6_output_error_strings), + .error_strings = hicn_iface_ip6_output_error_strings, + .n_next_nodes = HICN_IFACE_IP6_OUTPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_IFACE_IP6_OUTPUT_NEXT_LOOKUP] = "ip6-lookup", + [HICN_IFACE_IP6_OUTPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/iface_ip_node.h b/hicn-plugin/src/faces/ip/iface_ip_node.h new file mode 100755 index 000000000..36923f069 --- /dev/null +++ b/hicn-plugin/src/faces/ip/iface_ip_node.h @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_IFACE_IP_NODE_H__ +#define __HICN_IFACE_IP_NODE_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +/** + * @brief Initialize the ip iface module + */ +void hicn_iface_ip_init (vlib_main_t * vm); + +#endif // __HICN_IFACE_IP_NODE_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/dpo_udp.c b/hicn-plugin/src/faces/udp/dpo_udp.c new file mode 100755 index 000000000..e58fc9788 --- /dev/null +++ b/hicn-plugin/src/faces/udp/dpo_udp.c @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "dpo_udp.h" + +#include <vnet/ip/format.h> +#include <vnet/adj/adj.h> +#include <vnet/vnet.h> +#include <vlib/vlib.h> + +const static char *const hicn_face_ip4udp_nodes[] = { + "hicn-face-encap-udp4", + "hicn-face-decap-udp4", + "hicn-iface-decap-udp4", + "hicn-iface-encap-udp4", + NULL, +}; + +const static char *const hicn_face_ip6udp_nodes[] = { + "hicn-face-encap-udp6", + "hicn-face-decap-udp6", + "hicn-iface-decap-udp6", + "hicn-iface-encap-udp6", + NULL, +}; + +const static char *const *const hicn_ipudp_nodes[DPO_PROTO_NUM] = { + [DPO_PROTO_IP4] = hicn_face_ip4udp_nodes, + [DPO_PROTO_IP6] = hicn_face_ip6udp_nodes +}; + + +const static dpo_vft_t hicn_dpoi_udp_vft = { + .dv_lock = hicn_face_lock, + .dv_unlock = hicn_face_unlock, + .dv_format = format_hicn_face_udp, +}; + +/* Must be executed after all the strategy nodes are created */ +void +hicn_dpo_udp_module_init (void) +{ + mhash_init (&hicn_face_udp_hashtb, sizeof (hicn_face_id_t) /* value */ , + sizeof (hicn_face_udp_key_t) /* key */ ); + + /* + * How much useful is the following registration? + * So far it seems that we need it only for setting the dpo_type. + */ + hicn_face_udp_type = + dpo_register_new_type (&hicn_dpoi_udp_vft, hicn_ipudp_nodes); +} + + +/* Here udp ports are in host order, move them to network order to do the lookup */ +int +hicn_dpo_udp4_create (dpo_id_t * dpo, + const ip4_address_t * src_ip, + const ip4_address_t * dst_ip, + u16 src_port, u16 dst_port, + u32 sw_if, + adj_index_t ip_adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id) +{ + u16 net_src_port = clib_host_to_net_u16 (src_port); + u16 net_dst_port = clib_host_to_net_u16 (dst_port); + hicn_face_t *face = hicn_face_udp4_get (src_ip, dst_ip, src_port, dst_port); + + u8 is_appface; + /* ip_csum_t sum0; */ + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + hicn_dpo_udp4_add_and_lock (dpo, src_ip, dst_ip, net_src_port, net_dst_port, + node_index, &is_appface); + + face = hicn_dpoi_get_from_idx (dpo->dpoi_index); + + hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data; + + udp_face->hdrs.ip4.ip.checksum = + ip4_header_checksum (&(udp_face->hdrs.ip4.ip)); + + face->shared.flags = flags; + face->shared.adj = ip_adj; + face->shared.sw_if = sw_if; + *face_id = hicn_dpoi_get_index (face); + + return HICN_ERROR_NONE; +} + + +int +hicn_dpo_udp6_create (dpo_id_t * dpo, + const ip6_address_t * src_ip, + const ip6_address_t * dst_ip, + u16 src_port, u16 dst_port, + u32 sw_if, + adj_index_t ip_adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id) +{ + u16 net_src_port = clib_host_to_net_u16 (src_port); + u16 net_dst_port = clib_host_to_net_u16 (dst_port); + hicn_face_t *face = + hicn_face_udp6_get (src_ip, dst_ip, net_src_port, net_dst_port); + u8 is_appface; + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + hicn_dpo_udp6_add_and_lock (dpo, src_ip, dst_ip, net_src_port, net_dst_port, + node_index, &is_appface); + + face = hicn_dpoi_get_from_idx (dpo->dpoi_index); + + face->shared.flags = flags; + face->shared.adj = ip_adj; + face->shared.sw_if = sw_if; + *face_id = hicn_dpoi_get_index (face); + + return HICN_ERROR_NONE; +} + +void +hicn_dpo_udp_create_from_face (hicn_face_t * face, dpo_id_t * dpo, + u16 dpoi_next_node) +{ + hicn_face_id_t face_dpoi_id = hicn_dpoi_get_index (face); + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + u8 version = + (face_udp->hdrs.ip4.ip.ip_version_and_header_length & 0xf0) >> 4; + dpo_set (dpo, face->shared.face_type, + version == 4 ? DPO_PROTO_IP4 : DPO_PROTO_IP6, face_dpoi_id); + dpo->dpoi_next_node = dpoi_next_node; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/dpo_udp.h b/hicn-plugin/src/faces/udp/dpo_udp.h new file mode 100755 index 000000000..fdde4192b --- /dev/null +++ b/hicn-plugin/src/faces/udp/dpo_udp.h @@ -0,0 +1,312 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_DPO_UDP_H__ +#define __HICN_DPO_UDP_H__ + +#include <vnet/adj/adj_types.h> +#include <vnet/ip/ip4_packet.h> +#include <vnet/ip/ip6_packet.h> + +#include "face_udp.h" +#include "../face.h" +#include "../../error.h" + + +/** + * @brief Initialize the internal structures of the dpo udp face module. + */ +void hicn_dpo_udp_module_init (void); + +/** + * @brief Create a udp face and its corresponding dpo. Meant to be used for the + * control plane. + * + * @param dpo: Data plane object that point to the face created. + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param adj: Ip adjacency corresponding to the remote address in the face + * @param node_index: vlib edge index to use in the packet processing + * @param flags: Flags of the face + * @param face_id: Identifier for the face (dpoi_index) + * @return HICN_ERROR_FACE_ALREADY_CREATED if the face exists, otherwise HICN_ERROR_NONE + */ +int +hicn_dpo_udp4_create (dpo_id_t * dpo, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u16 local_port, u16 remote_port, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id); + +/** + * @brief Retrieve a face using the face identifier, i.e., the quadruplet (local_addr, remote_addr, + * local_port, remote_port). This method adds a lock on the face state. + * + * @param dpo: Result of the lookup. If the face doesn't exist dpo = NULL + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param is_appface: Boolean that indicates whether the face is an application + * face or not. (Currently only IP faces can be appface) + * + * @result HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise HICN_ERROR_NONE. + */ +always_inline int +hicn_dpo_udp4_lock (dpo_id_t * dpo, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u16 local_port, u16 remote_port, u8 * is_appface) +{ + hicn_face_t *face = + hicn_face_udp4_get (local_addr, remote_addr, local_port, remote_port); + + if (PREDICT_FALSE (face == NULL)) + return HICN_ERROR_FACE_NOT_FOUND; + + index_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = ~0; + dpo_lock (dpo); + + *is_appface = 0; + + return HICN_ERROR_NONE; +} + +/** + * @brief Retrieve, or create if it doesn't exist, a face from the face + * identifier (local_addr, remote_addr, local_port, remote_port) and returns its + * dpo. This method adds a lock on the face state. + * + * @param dpo: Result of the lookup + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param is_appface: Boolean that indicates whether the face is an application + * face or not. (Currently only IP faces can be appface) + * @param node_index: vlib edge index to use in the packet processing + */ +always_inline void +hicn_dpo_udp4_add_and_lock (dpo_id_t * dpo, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u16 local_port, u16 remote_port, + u32 node_index, u8 * is_appface) +{ + hicn_face_t *face = + hicn_face_udp4_get (local_addr, remote_addr, local_port, remote_port); + + if (face == NULL) + { + pool_get (hicn_dpoi_face_pool, face); + + hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data; + + clib_memcpy (&(udp_face->hdrs.ip4.ip), &ip4_header_skl, + sizeof (ip4_header_t)); + clib_memcpy (&(udp_face->hdrs.ip4.ip.src_address), local_addr, + sizeof (ip4_address_t)); + clib_memcpy (&(udp_face->hdrs.ip4.ip.dst_address), remote_addr, + sizeof (ip4_address_t)); + + udp_face->hdrs.ip4.udp.src_port = local_port; + udp_face->hdrs.ip4.udp.dst_port = remote_port; + + face->shared.adj = ADJ_INDEX_INVALID; + face->shared.pl_id = (u16) 0; + face->shared.face_type = hicn_face_udp_type; + face->shared.flags = HICN_FACE_FLAGS_IFACE; + face->shared.locks = 0; + + hicn_face_udp_key_t key; + hicn_face_udp4_get_key (local_addr, remote_addr, local_port, + remote_port, &key); + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + + mhash_set_mem (&hicn_face_udp_hashtb, &key, (uword *) & dpoi_index, 0); + face = face; + + *is_appface = 0; + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); + + return; + } + + *is_appface = 0; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); +} + +/** + * @brief Create a udp face and its corresponding dpo. Meant to be used for the + * control plane. + * + * @param dpo: Data plane object that point to the face created. + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param adj: Ip adjacency corresponding to the remote address in the face + * @param node_index: vlib edge index to use in the packet processing + * @param flags: Flags of the face + * @param face_id: Identifier for the face (dpoi_index) + * @return HICN_ERROR_FACE_ALREADY_CREATED if the face exists, otherwise HICN_ERROR_NONE + */ +int +hicn_dpo_udp6_create (dpo_id_t * dpo, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u16 local_port, u16 remote_port, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id); + + +/** + * @brief Retrieve a face using the face identifier, i.e., the quadruplet (local_addr, remote_addr, + * local_port, remote_port). This method adds a lock on the face state. + * + * @param dpo: Result of the lookup. If the face doesn't exist dpo = NULL + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param is_appface: Boolean that indicates whether the face is an application + * face or not. (Currently only IP faces can be appface) + * + * @result HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise HICN_ERROR_NONE. + */ +always_inline int +hicn_dpo_udp6_lock (dpo_id_t * dpo, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u16 local_port, u16 remote_port, u8 * is_appface) +{ + hicn_face_t *face = + hicn_face_udp6_get (local_addr, remote_addr, local_port, remote_port); + + + if (PREDICT_FALSE (face == NULL)) + return HICN_ERROR_FACE_NOT_FOUND; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = ~0; + dpo_lock (dpo); + *is_appface = 0; + + return HICN_ERROR_NONE; +} + +/** + * @brief Retrieve, or create if it doesn't exist, a face from the face + * identifier (local_addr, remote_addr, local_port, remote_port) and returns its + * dpo. This method adds a lock on the face state. + * + * @param dpo: Result of the lookup + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param is_appface: Boolean that indicates whether the face is an application + * face or not. (Currently only IP faces can be appface) + * @param node_index: vlib edge index to use in the packet processing + */ +always_inline void +hicn_dpo_udp6_add_and_lock (dpo_id_t * dpo, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u16 local_port, u16 remote_port, + u32 node_index, u8 * is_appface) +{ + hicn_face_t *face = + hicn_face_udp6_get (local_addr, remote_addr, local_port, remote_port); + + if (face == NULL) + { + pool_get (hicn_dpoi_face_pool, face); + + hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data; + + clib_memcpy (&(udp_face->hdrs.ip6.ip), &ip6_header_skl, + sizeof (ip6_header_t)); + clib_memcpy (&(udp_face->hdrs.ip6.ip.src_address), local_addr, + sizeof (ip6_address_t)); + clib_memcpy (&(udp_face->hdrs.ip6.ip.dst_address), remote_addr, + sizeof (ip6_address_t)); + + udp_face->hdrs.ip6.udp.src_port = local_port; + udp_face->hdrs.ip6.udp.dst_port = remote_port; + + face->shared.adj = ADJ_INDEX_INVALID; + face->shared.pl_id = (u16) 0; + face->shared.face_type = hicn_face_udp_type; + face->shared.flags = HICN_FACE_FLAGS_IFACE; + face->shared.locks = 0; + + hicn_face_udp_key_t key; + hicn_face_udp6_get_key (local_addr, remote_addr, local_port, + remote_port, &key); + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + + mhash_set_mem (&hicn_face_udp_hashtb, &key, (uword *) & dpoi_index, 0); + + *is_appface = 0; + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP6, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); + + return; + } + + *is_appface = 0; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP6, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); +} + +/** + * @brief Create a dpo from a udp face + * + * @param face Face from which to create the dpo + * @return the dpo + */ +void hicn_dpo_udp_create_from_face (hicn_face_t * face, dpo_id_t * dpo, + u16 dpoi_next_node); + +#endif // __HICN_DPO_UDP_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/face_udp.c b/hicn-plugin/src/faces/udp/face_udp.c new file mode 100755 index 000000000..92335273a --- /dev/null +++ b/hicn-plugin/src/faces/udp/face_udp.c @@ -0,0 +1,371 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "face_udp.h" +#include "face_udp_node.h" +#include "dpo_udp.h" +#include "../face.h" +#include "../../strategy.h" +#include "../../strategy_dpo_manager.h" +#include "../../hicn.h" + +#include "../../mapme.h" // HICN_MAPME_EVENT_* +#include "../../mapme_eventmgr.h" // hicn_mapme_eventmgr_process_node +extern vlib_node_registration_t hicn_mapme_eventmgr_process_node; + +mhash_t hicn_face_udp_hashtb; + +dpo_type_t hicn_face_udp_type; + +ip4_header_t ip4_header_skl = { + .ip_version_and_header_length = 0x45, + .tos = 0x00, + .length = (u16) 0, + .fragment_id = (u16) 0, + .flags_and_fragment_offset = (u16) 0, + .ttl = 254, + .protocol = IP_PROTOCOL_UDP, + .checksum = 0, + .src_address = {{0}}, + .dst_address = {{0}}, +}; + +ip6_header_t ip6_header_skl = { +#if CLIB_ARCH_IS_BIG_ENDIAN + .ip_version_traffic_class_and_flow_label = 0x60000000, +#else + .ip_version_traffic_class_and_flow_label = 0x00000060, +#endif + .payload_length = (u16) 0, + .protocol = IP_PROTOCOL_UDP, + .hop_limit = 254, + .src_address = {{0}}, + .dst_address = {{0}} +}; + +u32 strategy_face_udp4_vlib_edge; +u32 strategy_face_udp6_vlib_edge; + +/* Separated from the hicn_face_udp_init because it cannot be called by the + init macro due to dependencies with other modules not yet initialied */ +void +hicn_face_udp_init_internal () +{ + ip4_header_t *ip4_hdr = &ip4_header_skl; + ip4_header_skl.checksum = ip4_header_checksum (ip4_hdr); +} + +void +hicn_face_udp_init (vlib_main_t * vm) +{ + int strategy_nodes_n = hicn_strategy_get_all_available (); + + /* Default Strategy has index 0 and it always exists */ + strategy_face_udp4_vlib_edge = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft + (default_dpo. + hicn_dpo_get_type ())-> + get_strategy_node_index + (), + hicn_face_udp4_output_node. + index); + strategy_face_udp6_vlib_edge = + vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft (default_dpo. + hicn_dpo_get_type ())-> + get_strategy_node_index (), + hicn_face_udp6_output_node.index); + + /* + * Create and edge between al the other strategy nodes + * and the udp_output nodes. + */ + for (int i = 1; i < strategy_nodes_n; i++) + { + u32 temp_index4 = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft_from_id + (i)->get_strategy_node_index (), + hicn_face_udp4_output_node.index); + u32 temp_index6 = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft_from_id + (i)->get_strategy_node_index (), + hicn_face_udp6_output_node.index); + ASSERT (temp_index4 == strategy_face_udp4_vlib_edge); + ASSERT (temp_index6 == strategy_face_udp6_vlib_edge); + } + + hicn_dpo_udp_module_init (); + + register_face_type (hicn_face_udp_type, &udp_vft, "udp");; +} + +int +hicn_face_udp_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, u16 local_port, + u16 remote_port, u32 swif, hicn_face_id_t * pfaceid) +{ + fib_protocol_t fib_type; + vnet_link_t link_type; + adj_index_t ip_adj; + int ret = HICN_ERROR_NONE; + dpo_proto_t dpo_proto; + + hicn_face_flags_t flags = (hicn_face_flags_t) 0; + flags |= HICN_FACE_FLAGS_FACE; + + + if (ip46_address_is_ip4 (local_addr) && ip46_address_is_ip4 (remote_addr)) + { + link_type = VNET_LINK_IP4; + fib_type = FIB_PROTOCOL_IP4; + ip_adj = adj_nbr_add_or_lock (fib_type, link_type, remote_addr, swif); + + hicn_face_t *face = + hicn_face_udp4_get (&local_addr->ip4, &remote_addr->ip4, local_port, + remote_port); + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + pool_get (hicn_dpoi_face_pool, face); + + hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data; + + clib_memcpy (&(udp_face->hdrs.ip4.ip), &ip4_header_skl, + sizeof (ip4_header_t)); + clib_memcpy (&(udp_face->hdrs.ip4.ip.src_address), &(local_addr->ip4), + sizeof (ip4_address_t)); + clib_memcpy (&(udp_face->hdrs.ip4.ip.dst_address), &(remote_addr->ip4), + sizeof (ip4_address_t)); + + udp_face->hdrs.ip4.udp.src_port = local_port; + udp_face->hdrs.ip4.udp.dst_port = remote_port; + + ip_csum_t csum = udp_face->hdrs.ip4.ip.checksum; + csum = ip_csum_sub_even (csum, ip4_header_skl.src_address.as_u32); + csum = ip_csum_sub_even (csum, ip4_header_skl.dst_address.as_u32); + csum = + ip_csum_add_even (csum, udp_face->hdrs.ip4.ip.src_address.as_u32); + csum = + ip_csum_add_even (csum, udp_face->hdrs.ip4.ip.dst_address.as_u32); + udp_face->hdrs.ip4.ip.checksum = ip_csum_fold (csum); + + face->shared.adj = ip_adj; + face->shared.sw_if = swif; + face->shared.pl_id = (u16) 0; + face->shared.face_type = hicn_face_udp_type; + face->shared.flags = flags; + face->shared.locks = 0; + + hicn_face_udp_key_t key; + hicn_face_udp4_get_key (&local_addr->ip4, &remote_addr->ip4, local_port, + remote_port, &key); + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + + mhash_set_mem (&hicn_face_udp_hashtb, &key, (uword *) & dpoi_index, 0); + + *pfaceid = hicn_dpoi_get_index (face); + dpo_proto = DPO_PROTO_IP4; + } + else if (!ip46_address_is_ip4 (local_addr) + && !ip46_address_is_ip4 (remote_addr)) + { + link_type = VNET_LINK_IP6; + fib_type = FIB_PROTOCOL_IP6; + ip_adj = adj_nbr_add_or_lock (fib_type, link_type, remote_addr, swif); + + hicn_face_t *face = + hicn_face_udp6_get (&local_addr->ip6, &remote_addr->ip6, local_port, + remote_port); + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + pool_get (hicn_dpoi_face_pool, face); + + hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data; + + clib_memcpy (&(udp_face->hdrs.ip6.ip), &ip6_header_skl, + sizeof (ip6_header_t)); + clib_memcpy (&(udp_face->hdrs.ip6.ip.src_address), local_addr, + sizeof (ip6_address_t)); + clib_memcpy (&(udp_face->hdrs.ip6.ip.dst_address), remote_addr, + sizeof (ip6_address_t)); + + udp_face->hdrs.ip6.udp.src_port = local_port; + udp_face->hdrs.ip6.udp.dst_port = remote_port; + + face->shared.adj = ip_adj; + face->shared.sw_if = swif; + face->shared.pl_id = (u16) 0; + face->shared.face_type = hicn_face_udp_type; + face->shared.flags = flags; + face->shared.locks = 0; + + hicn_face_udp_key_t key; + hicn_face_udp6_get_key (&local_addr->ip6, &remote_addr->ip6, local_port, + remote_port, &key); + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + + mhash_set_mem (&hicn_face_udp_hashtb, &key, (uword *) & dpoi_index, 0); + + *pfaceid = hicn_dpoi_get_index (face); + dpo_proto = DPO_PROTO_IP6; + } + else + { + return HICN_ERROR_IPS_ADDR_TYPE_NONUNIFORM; + } + + retx_t *retx = vlib_process_signal_event_data (vlib_get_main (), + hicn_mapme_eventmgr_process_node. + index, + HICN_MAPME_EVENT_FACE_ADD, 1, + sizeof (retx_t)); + *retx = (retx_t) + { + .prefix = 0,.dpo = (dpo_id_t) + { + .dpoi_type = hicn_face_udp_type,.dpoi_proto = + dpo_proto,.dpoi_next_node = 0,.dpoi_index = *pfaceid,} + }; + + return ret; +} + +int +hicn_face_udp_del (u32 faceid) +{ + return hicn_face_del (faceid); +} + +u8 * +format_hicn_face_udp (u8 * s, va_list * args) +{ + hicn_face_id_t face_id = va_arg (*args, index_t); + CLIB_UNUSED (u32 indent) = va_arg (*args, u32); + hicn_face_t *face; + hicn_face_udp_t *udp_face; + ip_adjacency_t *adj; + u8 ipv = 0x40; + vnet_main_t *vnm = vnet_get_main (); + + + face = hicn_dpoi_get_from_idx (face_id); + udp_face = (hicn_face_udp_t *) (face->data); + + if (face->shared.flags & HICN_FACE_FLAGS_FACE) + { + ASSERT (face->shared.adj != (adj_index_t) ~ 0); + adj = adj_get (face->shared.adj); + + s = format (s, "%U Face %d: ", format_white_space, indent, face_id); + if (udp_face->hdrs.ip4.ip.ip_version_and_header_length == ipv) + { + s = format (s, "type UDP local %U|%u ", + format_ip4_address, &udp_face->hdrs.ip4.ip.src_address, + clib_net_to_host_u16 (udp_face->hdrs.ip4.udp.src_port)); + s = + format (s, "remote %U|%u ", format_ip4_address, + &udp_face->hdrs.ip4.ip.dst_address, + clib_net_to_host_u16 (udp_face->hdrs.ip4.udp.dst_port)); + s = format (s, "%U", format_vnet_link, adj->ia_link); + s = format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + else + { + s = format (s, "type UDP local %U|%u ", + format_ip6_address, &udp_face->hdrs.ip6.ip.src_address, + clib_net_to_host_u16 (udp_face->hdrs.ip6.udp.src_port)); + s = + format (s, "remote %U|%u", format_ip6_address, + &udp_face->hdrs.ip6.ip.dst_address, + clib_net_to_host_u16 (udp_face->hdrs.ip6.udp.dst_port)); + s = format (s, "%U", format_vnet_link, adj->ia_link); + s = format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + } + else + { + s = format (s, "IFace %d: ", format_white_space, indent, face_id); + if (udp_face->hdrs.ip4.ip.ip_version_and_header_length == ipv) + { + s = format (s, "type UDP local %U|%u", + format_ip4_address, &udp_face->hdrs.ip4.ip.src_address, + clib_net_to_host_u16 (udp_face->hdrs.ip4.udp.src_port)); + s = + format (s, " local %U|%u", format_ip4_address, + &udp_face->hdrs.ip4.ip.dst_address, + clib_net_to_host_u16 (udp_face->hdrs.ip4.udp.dst_port)); + s = + format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + else + { + s = format (s, "type UDP local %U|%u", + format_ip6_address, &udp_face->hdrs.ip6.ip.src_address, + clib_net_to_host_u16 (udp_face->hdrs.ip6.udp.src_port)); + s = + format (s, " remote %U|%u", format_ip6_address, + &udp_face->hdrs.ip6.ip.dst_address, + clib_net_to_host_u16 (udp_face->hdrs.ip6.udp.dst_port)); + s = + format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + } + + return s; +} + +void +hicn_face_udp_get_dpo (hicn_face_t * face, dpo_id_t * dpo) +{ + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + u8 version = + (face_udp->hdrs.ip4.ip.ip_version_and_header_length & 0xf0) >> 4; + return hicn_dpo_udp_create_from_face (face, dpo, + version == + (u8) 4 ? strategy_face_udp4_vlib_edge + : strategy_face_udp6_vlib_edge); +} + +hicn_face_vft_t udp_vft = { + .format_face = format_hicn_face_udp, + .hicn_face_del = hicn_face_udp_del, + .hicn_face_get_dpo = hicn_face_udp_get_dpo, +}; + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/face_udp.h b/hicn-plugin/src/faces/udp/face_udp.h new file mode 100755 index 000000000..8694bad5c --- /dev/null +++ b/hicn-plugin/src/faces/udp/face_udp.h @@ -0,0 +1,248 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_FACE_UDP_H__ +#define __HICN_FACE_UDP_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/ip/ip6_packet.h> +#include <vnet/udp/udp_packet.h> + +#include "../face.h" + +/** + * @file + * @brief UDP face + * + * This file containes the definition of UDP faces. + * UDP faces encap and decap an hicn packet into a UDP tunnel. + * Src and dst address in interest and data packets are not considered and + * should be set to 0 (not checked in the forwarder). + */ + +/* Pre-instantiated ip header to fast fill an newly encapsulated packet */ +extern ip4_header_t ip4_header_skl; +extern ip6_header_t ip6_header_skl; + +#define INVALID_UDP_DPO_INDEX ~0 + +/** + * @brief UDP face representation. The following is stored in the data field of + * an hicn_face_t object (see hicn_face.h). A UDP face is identifies by the + * quadruplet (src addr, dst addr, src port, dst port). + */ +typedef struct hicn_face_udp_t_ +{ + /** + * The headers to paint, in packet painting order + */ + union + { + struct + { + ip4_header_t ip; + udp_header_t udp; + } __attribute__ ((packed)) ip4; + struct + { + ip6_header_t ip; + udp_header_t udp; + } __attribute__ ((packed)) ip6; + } __attribute__ ((packed)) hdrs; +} hicn_face_udp_t; + +/* Hast table mapping the udp key with the face id (dpoi_index pointing to and + element in the face pool defined in hicn_face.h)*/ +extern mhash_t hicn_face_udp_hashtb; + +/** + * @brief Hash table key. + */ +typedef struct hicn_face_udp_key_s +{ + ip46_address_t local_addr; + ip46_address_t remote_addr; + u16 local_port; + u16 remote_port; +} hicn_face_udp_key_t; + +/* DPO type for the udp face */ +extern dpo_type_t hicn_face_udp_type; + +/* VFT table for the udp face. Mainly used to format the face in the right way */ +extern hicn_face_vft_t udp_vft; + +/** + * @brief Create the key object for the mhash. Fill in the key object with the + * expected values. + * + * @param local_addr Local address of the UDP tunnel + * @param remote_addr Remote address of the UDP tunnel + * @param local_port Local port of the UDP tunnel + * @param remote_port Remote port of the UDP tunnel + * @param key Pointer to an allocated hicn_face_udp_key_t object + */ +always_inline void +hicn_face_udp4_get_key (const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u16 local_port, u16 remote_port, + hicn_face_udp_key_t * key) +{ + + ip46_address_set_ip4 (&(key->local_addr), local_addr); + ip46_address_set_ip4 (&(key->remote_addr), remote_addr); + key->local_port = local_port; + key->remote_port = remote_port; +} + +/** + * @brief Create the key object for the mhash. Fill in the key object with the + * expected values. + * + * @param local_addr Local address of the UDP tunnel + * @param remote_addr Remote address of the UDP tunnel + * @param local_port Local port of the UDP tunnel + * @param remote_port Remote port of the UDP tunnel + * @param key Pointer to an allocated hicn_face_udp_key_t object + */ +always_inline void +hicn_face_udp6_get_key (const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u16 local_port, u16 remote_port, + hicn_face_udp_key_t * key) +{ + key->local_addr.ip6 = *local_addr; + key->remote_addr.ip6 = *remote_addr; + key->local_port = local_port; + key->remote_port = remote_port; +} + +/** + * @brief Get the dpoi from the quadruplet that identifies the face. Does not add any lock. + * + * @param local_addr Local address of the UDP tunnel + * @param remote_addr Remote address of the UDP tunnel + * @param local_port Local port of the UDP tunnel + * @param remote_port Remote port of the UDP tunnel + * + * @result Pointer to the face. + */ +always_inline hicn_face_t * +hicn_face_udp4_get (const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u16 local_port, u16 remote_port) +{ + hicn_face_udp_key_t key; + + hicn_face_udp4_get_key (local_addr, remote_addr, local_port, remote_port, + &key); + + hicn_face_id_t *dpoi_index = + (hicn_face_id_t *) mhash_get (&hicn_face_udp_hashtb, + &key); + + return dpoi_index == NULL ? NULL : hicn_dpoi_get_from_idx (*dpoi_index); +} + +/** + * @brief Get the dpoi from the quadruplet that identifies the face. Does not add any lock. + * + * @param local_addr Local address of the UDP tunnel (network order) + * @param remote_addr Remote address of the UDP tunnel (network order) + * @param local_port Local port of the UDP tunnel (network order) + * @param remote_port Remote port of the UDP tunnel (network order) + * + * @result Pointer to the face. + */ +always_inline hicn_face_t * +hicn_face_udp6_get (const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u16 local_port, u16 remote_port) +{ + hicn_face_udp_key_t key; + + hicn_face_udp6_get_key (local_addr, remote_addr, local_port, remote_port, + &key); + + hicn_face_id_t *dpoi_index = + (hicn_face_id_t *) mhash_get (&hicn_face_udp_hashtb, + &key); + + return dpoi_index == NULL ? NULL : hicn_dpoi_get_from_idx (*dpoi_index); +} + + +/** + * @brief Initialize the udp face module + */ +void hicn_face_udp_init (vlib_main_t * vm); + +/** + * @brief Create a new face ip. API for other modules (e.g., routing) + * + * @param local_addr Local ip v4 or v6 address of the face (network order) + * @param remote_addr Remote ip v4 or v6 address of the face (network order) + * @param local_port Local udp port of the face (network order) + * @param remote_port Remote udp port of the face (network order) + * @param sw_if interface associated to the face + * @param pfaceid Pointer to return the face id + * @return HICN_ERROR_FACE_NO_GLOBAL_IP if the face does not have a globally + * reachable ip address, otherwise HICN_ERROR_NONE + */ +int hicn_face_udp_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, u16 local_port, + u16 remote_port, u32 swif, hicn_face_id_t * pfaceid); + +/** + * @brief Delete an ip face + * + * @param face_id Id of the face to delete + * @return HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise + * HICN_ERROR_NONE + */ +int hicn_face_udp_del (hicn_face_id_t faceid); + +/** + * @brief Format a UDP face + * + * @param s Pointer to a previous string. If null it will be initialize + * @param args Array storing input values. Expected u32 indent and u32 face_id + * @return String with the formatted face + */ +u8 *format_hicn_face_udp (u8 * s, va_list * args); + +/** + * @brief Create a dpo from a udp face + * + * @param face Face from which to create the dpo + * @return the dpo + */ +void hicn_face_udp_get_dpo (hicn_face_t * face, dpo_id_t * dpo); + +/** + * @brief Init some internal structures + */ +void hicn_face_udp_init_internal (void); + +#endif // __HICN_FACE_UDP_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/face_udp_cli.c b/hicn-plugin/src/faces/udp/face_udp_cli.c new file mode 100755 index 000000000..7bb172ce8 --- /dev/null +++ b/hicn-plugin/src/faces/udp/face_udp_cli.c @@ -0,0 +1,164 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "face_udp.h" +#include "dpo_udp.h" + +#include <vnet/vnet.h> +#include <vnet/dpo/dpo.h> +#include <vlib/vlib.h> +#include <vnet/ip/format.h> + +#define HICN_FACE_NONE 0 +#define HICN_FACE_DELETE 1 +#define HICN_FACE_ADD 2 + + +static clib_error_t * +hicn_face_udp_cli_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + vnet_main_t *vnm = vnet_get_main (); + ip46_address_t src_addr; + u32 src_port = 0; + ip46_address_t dst_addr; + u32 dst_port = 0; + hicn_face_id_t face_id = HICN_FACE_NULL; + int ret = HICN_ERROR_NONE; + int sw_if; + int face_op = HICN_FACE_NONE; + + ip46_address_reset (&src_addr); + ip46_address_reset (&dst_addr); + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return (0); + } + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "del")) + { + if (unformat (line_input, "id %d", &face_id)) + face_op = HICN_FACE_DELETE; + else + { + return clib_error_return (0, "missing face id"); + } + } + else if (unformat (line_input, "add")) + { + face_op = HICN_FACE_ADD; + if (unformat + (line_input, "src_addr %U port %u dst_addr %U port %u intfc %U", + unformat_ip46_address, &src_addr, IP46_TYPE_ANY, &src_port, + unformat_ip46_address, &dst_addr, IP46_TYPE_ANY, &dst_port, + unformat_vnet_sw_interface, vnm, &sw_if)); + else + { + return clib_error_return (0, "%s '%U'", + get_error_string + (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + else + { + return clib_error_return (0, "%s '%U'", + get_error_string (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + + if (face_id != HICN_FACE_NULL) + { + if (!hicn_dpoi_idx_is_valid (face_id)) + { + return clib_error_return (0, "%s, face_id %d not valid", + get_error_string (ret), face_id); + } + } + + int rv; + switch (face_op) + { + case HICN_FACE_ADD: + + /* Check for presence of next hop address */ + if (((dst_addr.as_u64[0] == (u64) 0) && (dst_addr.as_u64[1] == (u64) 0)) + || dst_port == 0) + { + return clib_error_return (0, "dst address and port not specified"); + } + + if (((src_addr.as_u64[0] == (u64) 0) && (src_addr.as_u64[1] == (u64) 0)) + || src_port == 0) + { + return clib_error_return (0, "src address not specified"); + } + + rv = + hicn_face_udp_add (&src_addr, &dst_addr, + clib_host_to_net_u16 (src_port), + clib_host_to_net_u16 (dst_port), sw_if, &face_id); + if (rv == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Face id: %d", face_id); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + break; + case HICN_FACE_DELETE: + rv = hicn_face_udp_del (face_id); + if (rv == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Face %d deleted", face_id); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + break; + default: + return clib_error_return (0, "Operation (%d) not implemented", face_op); + break; + } + return (rv == HICN_ERROR_NONE) ? 0 : clib_error_return (0, "%s\n", + get_error_string + (rv)); +} + +/* cli declaration for 'cfg face' */ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (hicn_face_udp_cli_set_command, static) = +{ + .path = "hicn face udp", + .short_help = "hicn face udp {add src_addr <src_address> port <src_port > dst_addr <dst_address> port <dst_port>} intfc <interface> | {del id <face_id>}", + .function = hicn_face_udp_cli_set_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/face_udp_node.c b/hicn-plugin/src/faces/udp/face_udp_node.c new file mode 100755 index 000000000..74d0b1864 --- /dev/null +++ b/hicn-plugin/src/faces/udp/face_udp_node.c @@ -0,0 +1,864 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/ip/ip_packet.h> + +#include "face_udp.h" +#include "face_udp_node.h" +#include "dpo_udp.h" +#include "../face.h" +#include "../../strategy.h" +#include "../../strategy_dpo_manager.h" +#include "../../hicn.h" + +/** + * @File + * + * Definition of the nodes for udp faces. + */ + +vlib_node_registration_t hicn_face_udp4_input_node; +vlib_node_registration_t hicn_face_udp6_input_node; +vlib_node_registration_t hicn_face_udp4_output_node; +vlib_node_registration_t hicn_face_udp6_output_node; + +static char *hicn_face_udp4_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_face_udp6_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_udp4_input_trace_t; + +typedef enum +{ + HICN_FACE_UDP4_INPUT_NEXT_DATA, + HICN_FACE_UDP4_INPUT_NEXT_MAPME, + HICN_FACE_UDP4_INPUT_NEXT_ERROR_DROP, + HICN_FACE_UDP4_INPUT_N_NEXT, +} hicn_face_udp4_input_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_udp6_input_trace_t; + +typedef enum +{ + HICN_FACE_UDP6_INPUT_NEXT_DATA, + HICN_FACE_UDP6_INPUT_NEXT_MAPME, + HICN_FACE_UDP6_INPUT_NEXT_ERROR_DROP, + HICN_FACE_UDP6_INPUT_N_NEXT, +} hicn_face_udp6_input_next_t; + +#define ERROR_INPUT_UDP4 HICN_FACE_UDP4_INPUT_NEXT_ERROR_DROP +#define ERROR_INPUT_UDP6 HICN_FACE_UDP6_INPUT_NEXT_ERROR_DROP + +#define NEXT_MAPME_UDP4 HICN_FACE_UDP4_INPUT_NEXT_MAPME +#define NEXT_MAPME_UDP6 HICN_FACE_UDP6_INPUT_NEXT_MAPME +#define NEXT_DATA_UDP4 HICN_FACE_UDP4_INPUT_NEXT_DATA +#define NEXT_DATA_UDP6 HICN_FACE_UDP6_INPUT_NEXT_DATA + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define HICN_DPO_UDP_LOCK_IP4 hicn_dpo_udp4_lock +#define HICN_DPO_UDP_LOCK_IP6 hicn_dpo_udp6_lock + +#define TRACE_INPUT_PKT_UDP4 hicn_face_udp4_input_trace_t +#define TRACE_INPUT_PKT_UDP6 hicn_face_udp6_input_trace_t + +#define face_input_x1(ipv) \ + do { \ + int ret; \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = ERROR_INPUT_UDP##ipv; \ + IP_HEADER_##ipv * ip_hdr = NULL; \ + u8 * inner_ip_hdr = NULL; \ + udp_header_t * udp_hdr = NULL; \ + hicn_buffer_t * hicnb0; \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + ip_hdr = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + udp_hdr = (udp_header_t *) (ip_hdr + 1); \ + hicnb0 = hicn_get_buffer(b0); \ + \ + inner_ip_hdr = (u8 *)(udp_hdr + 1); \ + u8 is_v6 = ((inner_ip_hdr[0] & 2) >> 1); \ + u8 is_icmp = is_v6*(inner_ip_hdr[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6)*(inner_ip_hdr[10] == IPPROTO_ICMPV4); \ + \ + ret = HICN_DPO_UDP_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &(ip_hdr->dst_address), \ + &(ip_hdr->src_address), \ + (udp_hdr->dst_port), \ + (udp_hdr->src_port), \ + &hicnb0->is_appface); \ + \ + if ( PREDICT_FALSE(ret != HICN_ERROR_NONE) ) \ + { \ + next0 = ERROR_INPUT_UDP##ipv; \ + } \ + else \ + { \ + next0 = is_icmp*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp)*NEXT_DATA_UDP##ipv; \ + stats.pkts_data_count += 1; \ + \ + vlib_buffer_advance(b0, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_CONTENT; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, next0); \ + }while(0) \ + +#define face_input_x2(ipv) \ + do { \ + int ret0, ret1; \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = ERROR_INPUT_UDP##ipv; \ + u32 next1 = ERROR_INPUT_UDP##ipv; \ + IP_HEADER_##ipv * ip_hdr0 = NULL; \ + IP_HEADER_##ipv * ip_hdr1 = NULL; \ + u8 * inner_ip_hdr0 = NULL; \ + u8 * inner_ip_hdr1 = NULL; \ + udp_header_t * udp_hdr0 = NULL; \ + udp_header_t * udp_hdr1 = NULL; \ + hicn_buffer_t *hicnb0, *hicnb1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + ip_hdr0 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + ip_hdr1 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b1); \ + udp_hdr0 = (udp_header_t *) (ip_hdr0 + 1); \ + udp_hdr1 = (udp_header_t *) (ip_hdr1 + 1); \ + hicnb0 = hicn_get_buffer(b0); \ + hicnb1 = hicn_get_buffer(b1); \ + \ + inner_ip_hdr0 = (u8 *)(udp_hdr0 + 1); \ + u8 is_v6_0 = ((inner_ip_hdr0[0] & 2) >> 1); \ + u8 is_icmp0 = is_v6_0*(inner_ip_hdr0[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6_0)*(inner_ip_hdr0[10] == IPPROTO_ICMPV4); \ + \ + inner_ip_hdr1 = (u8 *)(udp_hdr1 + 1); \ + u8 is_v6_1 = ((inner_ip_hdr1[0] & 2) >> 1); \ + u8 is_icmp1 = is_v6_1*(inner_ip_hdr1[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6_1)*(inner_ip_hdr1[10] == IPPROTO_ICMPV4); \ + \ + ret0 = HICN_DPO_UDP_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &(ip_hdr0->dst_address), \ + &(ip_hdr0->src_address), \ + (udp_hdr0->dst_port), \ + (udp_hdr0->src_port), \ + &hicnb0->is_appface); \ + \ + ret1 = HICN_DPO_UDP_LOCK_IP##ipv \ + (&(hicnb1->face_dpo_id), \ + &(ip_hdr1->dst_address), \ + &(ip_hdr1->src_address), \ + (udp_hdr1->dst_port), \ + (udp_hdr1->src_port), \ + &hicnb1->is_appface); \ + \ + if ( PREDICT_FALSE(ret0 != HICN_ERROR_NONE) ) \ + { \ + next0 = ERROR_INPUT_UDP##ipv; \ + } \ + else \ + { \ + stats.pkts_data_count += 1; \ + next0 = is_icmp0*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp0)*NEXT_DATA_UDP##ipv; \ + \ + vlib_buffer_advance(b0, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + } \ + \ + if ( PREDICT_FALSE(ret1 != HICN_ERROR_NONE) ) \ + { \ + next1 = ERROR_INPUT_UDP##ipv; \ + } \ + else \ + { \ + stats.pkts_data_count += 1; \ + next1 = is_icmp1*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp1)*NEXT_DATA_UDP##ipv; \ + \ + vlib_buffer_advance(b1, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_CONTENT; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_CONTENT; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0) \ + +static uword +hicn_face_udp4_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_input_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_input_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_udp4_input_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_face_udp4_input_trace_t *t = + va_arg (*args, hicn_face_udp4_input_trace_t *); + + s = format (s, "FACE_UDP4_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_face_udp4_input_node) = +{ + .function = hicn_face_udp4_input_node_fn, + .name = "hicn-face-udp4-input", + .vector_size = sizeof (u32), + .format_trace = hicn_face_udp4_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_face_udp4_input_error_strings), + .error_strings = hicn_face_udp4_input_error_strings, + .n_next_nodes = HICN_FACE_UDP4_INPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_FACE_UDP4_INPUT_NEXT_DATA] = "hicn-data-pcslookup", + [HICN_FACE_UDP4_INPUT_NEXT_MAPME] = "hicn-mapme-ack", + [HICN_FACE_UDP4_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +static uword +hicn_face_udp6_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_input_x2 (6); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_input_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_PROCESSED, stats.pkts_processed); + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_udp6_input_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_face_udp6_input_trace_t *t = + va_arg (*args, hicn_face_udp6_input_trace_t *); + + s = format (s, "FACE_UDP6_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_face_udp6_input_node) = +{ + .function = hicn_face_udp6_input_node_fn, + .name = "hicn-face-udp6-input", + .vector_size = sizeof (u32), + .format_trace = hicn_face_udp6_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_face_udp6_input_error_strings), + .error_strings = hicn_face_udp6_input_error_strings, + .n_next_nodes = HICN_FACE_UDP6_INPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_FACE_UDP6_INPUT_NEXT_DATA] = "hicn-data-pcslookup", + [HICN_FACE_UDP6_INPUT_NEXT_MAPME] = "hicn-mapme-ack", + [HICN_FACE_UDP6_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/******* Face Output *******/ + +always_inline void +hicn_face_udp4_encap (vlib_main_t * vm, + vlib_buffer_t * outer_b0, + hicn_face_t * face, u32 * next) +{ + u16 old_l0 = 0, new_l0; + ip_csum_t sum0; + ip4_header_t *ip0; + udp_header_t *udp0; + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + ip_adjacency_t *adj = adj_get (face->shared.adj); + + /* ip */ + ip0 = vlib_buffer_get_current (outer_b0); + clib_memcpy (ip0, &(face_udp->hdrs.ip4.ip), sizeof (ip4_header_t) + + sizeof (udp_header_t)); + + /* Fix UDP length */ + udp0 = (udp_header_t *) (ip0 + 1); + + new_l0 = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, outer_b0) - + sizeof (*ip0)); + udp0->length = new_l0; + + old_l0 = ip0->length; + ip0->length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, outer_b0)); + + sum0 = ip0->checksum; + + //old_l0 always 0, see the rewrite setup + new_l0 = ip0->length; + + sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t, + length /* changed member */ ); + ip0->checksum = sum0; + + vnet_buffer (outer_b0)->ip.adj_index[VLIB_TX] = face->shared.adj; + + *next = adj->lookup_next_index; +} + +always_inline void +hicn_face_udp6_encap (vlib_main_t * vm, + vlib_buffer_t * outer_b0, + hicn_face_t * face, u32 * next) +{ + int bogus0; + u16 new_l0; + ip6_header_t *ip0; + udp_header_t *udp0; + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + ip_adjacency_t *adj = adj_get (face->shared.adj); + + /* ip */ + ip0 = vlib_buffer_get_current (outer_b0); + clib_memcpy (ip0, &(face_udp->hdrs.ip6.ip), sizeof (ip6_header_t) + + sizeof (udp_header_t)); + new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, outer_b0) + - sizeof (*ip0)); + ip0->payload_length = new_l0; + + /* Fix UDP length */ + udp0 = (udp_header_t *) (ip0 + 1); + udp0->length = new_l0; + + udp0->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, outer_b0, ip0, &bogus0); + + ASSERT (bogus0 == 0); + + if (udp0->checksum == 0) + udp0->checksum = 0xffff; + + vnet_buffer (outer_b0)->ip.adj_index[VLIB_TX] = face->shared.adj; + + *next = adj->lookup_next_index; +} + +static char *hicn_face_udp4_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_face_udp6_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_udp4_output_trace_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_udp6_output_trace_t; + +#define HICN_FACE_UDP_ENCAP_IP4 hicn_face_udp4_encap +#define HICN_FACE_UDP_ENCAP_IP6 hicn_face_udp6_encap + +#define TRACE_OUTPUT_PKT_UDP4 hicn_face_udp4_output_trace_t +#define TRACE_OUTPUT_PKT_UDP6 hicn_face_udp6_output_trace_t + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define face_output_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = IP_LOOKUP_NEXT_DROP; \ + hicn_face_t * face; \ + \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + face = \ + hicn_dpoi_get_from_idx(vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face != NULL)) \ + { \ + /* Adjust vlib buffer. Create space for the udp tunnel. */ \ + vlib_buffer_advance(b0, -(sizeof (IP_HEADER_##ipv) + \ + sizeof (udp_header_t))); \ + \ + \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b0, face, &next0); \ + stats.pkts_interest_count += 1; \ + } \ + \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, next0); \ + } while(0) \ + + +#define face_output_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = IP_LOOKUP_NEXT_DROP; \ + u32 next1 = IP_LOOKUP_NEXT_DROP; \ + hicn_face_t *face0, *face1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + \ + face0 = \ + hicn_dpoi_get_from_idx(vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + face1 = \ + hicn_dpoi_get_from_idx(vnet_buffer (b1)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face0 != NULL)) \ + { \ + /* Adjust vlib buffer. Create space for the udp tunnel. */ \ + vlib_buffer_advance(b0, -(sizeof (IP_HEADER_##ipv) + \ + sizeof (udp_header_t))); \ + \ + \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b0, face0, &next0); \ + stats.pkts_interest_count += 1; \ + } \ + \ + if (PREDICT_TRUE(face1 != NULL)) \ + { \ + /* Adjust vlib buffer. Create space for the udp tunnel. */ \ + vlib_buffer_advance(b1, -(sizeof (IP_HEADER_##ipv) + \ + sizeof (udp_header_t))); \ + \ + \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b1, face1, &next1); \ + stats.pkts_interest_count += 1; \ + } \ + \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + } while(0) \ + + +static uword +hicn_face_udp4_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_output_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_output_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_udp4_output_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_face_udp4_output_trace_t *t = + va_arg (*args, hicn_face_udp4_output_trace_t *); + + s = format (s, "FACE_UDP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* *INDENT-OFF* */ +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_face_udp4_output_node) = +{ + .function = hicn_face_udp4_output_node_fn, + .name = "hicn-face-udp4-output", + .vector_size = sizeof (u32), + .format_trace = hicn_face_udp4_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_face_udp4_output_error_strings), + .error_strings = hicn_face_udp4_output_error_strings, + .n_next_nodes = IP4_LOOKUP_N_NEXT, + /* Reusing the list of nodes from lookup to be compatible with arp */ + .next_nodes = IP4_LOOKUP_NEXT_NODES, +}; +/* *INDENT-ON* */ + +/* *INDENT-ON* */ + +static uword +hicn_face_udp6_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_output_x2 (6); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + face_output_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_udp6_output_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_face_udp6_output_trace_t *t = + va_arg (*args, hicn_face_udp6_output_trace_t *); + + s = format (s, "FACE_UDP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* *INDENT-OFF* */ +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_face_udp6_output_node) = +{ + .function = hicn_face_udp6_output_node_fn, + .name = "hicn-face-udp6-output", + .vector_size = sizeof (u32), + .format_trace = hicn_face_udp6_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_face_udp6_output_error_strings), + .error_strings = hicn_face_udp6_output_error_strings, + .n_next_nodes = IP6_LOOKUP_N_NEXT, + /* Reusing the list of nodes from lookup to be compatible with neighbour discovery */ + .next_nodes = IP6_LOOKUP_NEXT_NODES, +}; +/* *INDENT-ON* */ + +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/face_udp_node.h b/hicn-plugin/src/faces/udp/face_udp_node.h new file mode 100755 index 000000000..c759312c8 --- /dev/null +++ b/hicn-plugin/src/faces/udp/face_udp_node.h @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_FACE_UDP_NODE_H__ +#define __HICN_FACE_UDP_NODE_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +extern vlib_node_registration_t hicn_face_udp4_input_node; +extern vlib_node_registration_t hicn_face_udp6_input_node; +extern vlib_node_registration_t hicn_face_udp4_output_node; +extern vlib_node_registration_t hicn_face_udp6_output_node; + +#endif // __HICN_FACE_UDP_NODE_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/iface_udp_node.c b/hicn-plugin/src/faces/udp/iface_udp_node.c new file mode 100755 index 000000000..ddea31b4c --- /dev/null +++ b/hicn-plugin/src/faces/udp/iface_udp_node.c @@ -0,0 +1,894 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "iface_udp_node.h" +#include "dpo_udp.h" +#include "../face.h" + +#include "../../infra.h" +#include "../../hicn.h" + +/** + * @File + * + * Definition of the nodes for udp incomplete faces. + */ + +vlib_node_registration_t hicn_iface_udp4_input_node; +vlib_node_registration_t hicn_iface_udp6_input_node; +vlib_node_registration_t hicn_iface_udp4_output_node; +vlib_node_registration_t hicn_iface_udp6_output_node; + +u32 data_fwd_face_udp4_vlib_edge; +u32 data_fwd_face_udp6_vlib_edge; + +void +hicn_iface_udp_init (vlib_main_t * vm) +{ + data_fwd_face_udp4_vlib_edge = vlib_node_add_next (vm, + hicn_data_fwd_node.index, + hicn_iface_udp4_output_node. + index); + + data_fwd_face_udp6_vlib_edge = vlib_node_add_next (vm, + hicn_data_fwd_node.index, + hicn_iface_udp6_output_node. + index); + + u32 temp_index4 = vlib_node_add_next (vm, + hicn_interest_hitcs_node.index, + hicn_iface_udp4_output_node.index); + u32 temp_index6 = vlib_node_add_next (vm, + hicn_interest_hitcs_node.index, + hicn_iface_udp6_output_node.index); + + ASSERT (temp_index4 == data_fwd_face_udp4_vlib_edge); + ASSERT (temp_index6 == data_fwd_face_udp6_vlib_edge); +} + +static char *hicn_iface_udp4_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_iface_udp6_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +u32 +get_face_udp4_output_node (void) +{ + return data_fwd_face_udp4_vlib_edge; +} + +u32 +get_face_udp6_output_node (void) +{ + return data_fwd_face_udp6_vlib_edge; +} + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_udp4_input_trace_t; + +typedef enum +{ + HICN_IFACE_UDP4_INPUT_NEXT_INTEREST, + HICN_IFACE_UDP4_INPUT_NEXT_MAPME, + HICN_IFACE_UDP4_INPUT_NEXT_ERROR_DROP, + HICN_IFACE_UDP4_INPUT_N_NEXT, +} hicn_iface_udp4_input_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_udp6_input_trace_t; + +typedef enum +{ + HICN_IFACE_UDP6_INPUT_NEXT_INTEREST, + HICN_IFACE_UDP6_INPUT_NEXT_MAPME, + HICN_IFACE_UDP6_INPUT_NEXT_ERROR_DROP, + HICN_IFACE_UDP6_INPUT_N_NEXT, +} hicn_iface_udp6_input_next_t; + +#define ERROR_INPUT_UDP4 HICN_IFACE_UDP4_INPUT_NEXT_ERROR_DROP +#define ERROR_INPUT_UDP6 HICN_IFACE_UDP6_INPUT_NEXT_ERROR_DROP + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define NEXT_MAPME_UDP4 HICN_IFACE_UDP4_INPUT_NEXT_MAPME +#define NEXT_MAPME_UDP6 HICN_IFACE_UDP6_INPUT_NEXT_MAPME + +#define NEXT_INTEREST_UDP4 HICN_IFACE_UDP4_INPUT_NEXT_INTEREST +#define NEXT_INTEREST_UDP6 HICN_IFACE_UDP6_INPUT_NEXT_INTEREST + +#define HICN_IFACE_UDP_ADD_LOCK_IP4 hicn_dpo_udp4_add_and_lock +#define HICN_IFACE_UDP_ADD_LOCK_IP6 hicn_dpo_udp6_add_and_lock + +#define GET_FACE_UDP4 get_face_udp4_output_node +#define GET_FACE_UDP6 get_face_udp6_output_node + +#define TRACE_INPUT_PKT_UDP4 hicn_iface_udp4_input_trace_t +#define TRACE_INPUT_PKT_UDP6 hicn_iface_udp6_input_trace_t + +#define iface_input_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = ERROR_INPUT_UDP##ipv; \ + IP_HEADER_##ipv * ip_hdr = NULL; \ + u8 * inner_ip_hdr = NULL; \ + udp_header_t * udp_hdr = NULL; \ + hicn_buffer_t * hicnb0; \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + ip_hdr = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + udp_hdr = (udp_header_t *) (ip_hdr + 1); \ + hicnb0 = hicn_get_buffer(b0); \ + \ + stats.pkts_interest_count += 1; \ + \ + inner_ip_hdr = (u8 *)(udp_hdr + 1); \ + u8 is_v6 = ((inner_ip_hdr[0] & 2) >> 1); \ + u8 is_icmp = is_v6*(inner_ip_hdr[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6)*(inner_ip_hdr[10] == IPPROTO_ICMPV4); \ + \ + next0 = is_icmp*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp)*NEXT_INTEREST_UDP##ipv; \ + \ + HICN_IFACE_UDP_ADD_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &(ip_hdr->dst_address), \ + &(ip_hdr->src_address), \ + udp_hdr->dst_port, \ + udp_hdr->src_port, \ + GET_FACE_UDP##ipv \ + (), \ + &hicnb0->is_appface); \ + \ + vlib_buffer_advance(b0, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, next0); \ + }while(0) + + +#define iface_input_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0, next1 = ERROR_INPUT_UDP##ipv; \ + IP_HEADER_##ipv * ip_hdr0 = NULL, *ip_hdr1 = NULL; \ + u8 * inner_ip_hdr0 = NULL, *inner_ip_hdr1 = NULL; \ + udp_header_t * udp_hdr0 = NULL, *udp_hdr1 = NULL; \ + hicn_buffer_t * hicnb0, *hicnb1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + ip_hdr0 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + ip_hdr1 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b1); \ + udp_hdr0 = (udp_header_t *) (ip_hdr0 + 1); \ + udp_hdr1 = (udp_header_t *) (ip_hdr1 + 1); \ + hicnb0 = hicn_get_buffer(b0); \ + hicnb1 = hicn_get_buffer(b1); \ + \ + stats.pkts_interest_count += 2; \ + \ + inner_ip_hdr0 = (u8 *)(udp_hdr0 + 1); \ + inner_ip_hdr1 = (u8 *)(udp_hdr1 + 1); \ + u8 is_v6_0 = ((inner_ip_hdr0[0] & 2) >> 1); \ + u8 is_v6_1 = ((inner_ip_hdr1[0] & 2) >> 1); \ + u8 is_icmp0 = is_v6_0*(inner_ip_hdr0[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6_0)*(inner_ip_hdr0[10] == IPPROTO_ICMPV4); \ + u8 is_icmp1 = is_v6_1*(inner_ip_hdr1[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6_1)*(inner_ip_hdr1[10] == IPPROTO_ICMPV4); \ + \ + next0 = is_icmp0*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp0)*NEXT_INTEREST_UDP##ipv; \ + next1 = is_icmp1*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp1)*NEXT_INTEREST_UDP##ipv; \ + \ + HICN_IFACE_UDP_ADD_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &(ip_hdr0->dst_address), \ + &(ip_hdr0->src_address), \ + udp_hdr0->dst_port, \ + udp_hdr0->src_port, \ + GET_FACE_UDP##ipv \ + (), \ + &hicnb0->is_appface); \ + \ + \ + HICN_IFACE_UDP_ADD_LOCK_IP##ipv \ + (&(hicnb1->face_dpo_id), \ + &(ip_hdr1->dst_address), \ + &(ip_hdr1->src_address), \ + udp_hdr1->dst_port, \ + udp_hdr1->src_port, \ + GET_FACE_UDP##ipv \ + (), \ + &hicnb1->is_appface); \ + \ + vlib_buffer_advance(b0, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + \ + vlib_buffer_advance(b1, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0) + + +static uword +hicn_iface_udp4_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_input_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_input_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_udp4_input_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_iface_udp4_input_trace_t *t = + va_arg (*args, hicn_iface_udp4_input_trace_t *); + + s = format (s, "IFACE_UDP4_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_udp4_input_node) = + +{ + .function = hicn_iface_udp4_input_node_fn, + .name = "hicn-iface-udp4-input", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_udp4_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_udp4_input_error_strings), + .error_strings = hicn_iface_udp4_input_error_strings, + .n_next_nodes = HICN_IFACE_UDP4_INPUT_N_NEXT, + .next_nodes = + { + [HICN_IFACE_UDP4_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup", + [HICN_IFACE_UDP4_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl", + [HICN_IFACE_UDP4_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +static uword +hicn_iface_udp6_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_input_x2 (6); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_input_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_udp6_input_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_iface_udp6_input_trace_t *t = + va_arg (*args, hicn_iface_udp6_input_trace_t *); + + s = format (s, "IFACE_UDP6_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_udp6_input_node) = +{ + .function = hicn_iface_udp6_input_node_fn, + .name = "hicn-iface-udp6-input", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_udp6_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_udp6_input_error_strings), + .error_strings = hicn_iface_udp6_input_error_strings, + .n_next_nodes = HICN_IFACE_UDP6_INPUT_N_NEXT, + .next_nodes = + { + [HICN_IFACE_UDP6_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup", + [HICN_IFACE_UDP6_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl", + [HICN_IFACE_UDP6_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/******* Iface Output *******/ + +always_inline void +hicn_iface_udp4_encap (vlib_main_t * vm, + vlib_buffer_t * b0, hicn_face_t * face) +{ + u16 new_l0 = 0; + ip4_header_t *ip0; + udp_header_t *udp0; + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + + /* Adjust vlib buffers */ + /* Set the right length on the header buffer */ + /* Move the next buffer current data pointer back to the ip+tcp header (hicn header) */ + int offset = sizeof (ip4_header_t) + sizeof (udp_header_t); + b0->current_data -= offset; + b0->current_length += offset; + + /* ip */ + ip0 = vlib_buffer_get_current (b0); + clib_memcpy (ip0, &(face_udp->hdrs.ip4.ip), sizeof (ip4_header_t) + + sizeof (udp_header_t)); + + /* Fix UDP length */ + udp0 = (udp_header_t *) (ip0 + 1); + + new_l0 = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - + sizeof (*ip0)); + udp0->length = new_l0; + + ip0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); + ip0->checksum = ip4_header_checksum (ip0); +} + +always_inline void +hicn_iface_udp6_encap (vlib_main_t * vm, + vlib_buffer_t * b0, hicn_face_t * face) +{ + int bogus0; + u16 new_l0; + ip6_header_t *ip0; + udp_header_t *udp0; + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + + /* Adjust vlib buffer */ + int offset = sizeof (ip6_header_t) + sizeof (udp_header_t); + b0->current_data -= offset; + b0->current_length += offset; + + /* ip */ + ip0 = vlib_buffer_get_current (b0); + clib_memcpy (ip0, &(face_udp->hdrs.ip6.ip), sizeof (ip6_header_t) + + sizeof (udp_header_t)); + + new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) + - sizeof (*ip0)); + + ip0->payload_length = new_l0; + + /* Fix UDP length */ + udp0 = (udp_header_t *) (ip0 + 1); + udp0->length = new_l0; + + udp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0); + + ASSERT (bogus0 == 0); + + if (udp0->checksum == 0) + udp0->checksum = 0xffff; +} + +static char *hicn_iface_udp4_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_iface_udp6_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_udp4_output_trace_t; + +typedef enum +{ + HICN_IFACE_UDP4_OUTPUT_NEXT_LOOKUP, + HICN_IFACE_UDP4_OUTPUT_NEXT_ERROR_DROP, + HICN_IFACE_UDP4_OUTPUT_N_NEXT, +} hicn_iface_udp4_output_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_udp6_output_trace_t; + +typedef enum +{ + HICN_IFACE_UDP6_OUTPUT_NEXT_LOOKUP, + HICN_IFACE_UDP6_OUTPUT_NEXT_ERROR_DROP, + HICN_IFACE_UDP6_OUTPUT_N_NEXT, +} hicn_iface_udp6_output_next_t; + +#define ERROR_OUTPUT_UDP4 HICN_IFACE_UDP4_OUTPUT_NEXT_ERROR_DROP +#define ERROR_OUTPUT_UDP6 HICN_IFACE_UDP6_OUTPUT_NEXT_ERROR_DROP + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define NEXT_LOOKUP_UDP4 HICN_IFACE_UDP4_OUTPUT_NEXT_LOOKUP +#define NEXT_LOOKUP_UDP6 HICN_IFACE_UDP6_OUTPUT_NEXT_LOOKUP + +#define HICN_IFACE_UDP_ADD_LOCK_IP4 hicn_dpo_udp4_add_and_lock +#define HICN_IFACE_UDP_ADD_LOCK_IP6 hicn_dpo_udp6_add_and_lock + +#define HICN_FACE_UDP_ENCAP_IP4 hicn_iface_udp4_encap +#define HICN_FACE_UDP_ENCAP_IP6 hicn_iface_udp6_encap + +#define TRACE_OUTPUT_PKT_UDP4 hicn_iface_udp4_output_trace_t +#define TRACE_OUTPUT_PKT_UDP6 hicn_iface_udp6_output_trace_t + +#define iface_output_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = ERROR_OUTPUT_UDP##ipv; \ + hicn_face_t * face; \ + \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + \ + face = \ + hicn_dpoi_get_from_idx(vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face != NULL)) \ + { \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b0, face); \ + next0 = NEXT_LOOKUP_UDP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, next0); \ + } while(0) + +#define iface_output_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = ERROR_OUTPUT_UDP##ipv, next1 = ERROR_OUTPUT_UDP##ipv; \ + hicn_face_t *face0, *face1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + \ + /* Dequeue packets buffers */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + \ + face0 = \ + hicn_dpoi_get_from_idx(vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + face1 = \ + hicn_dpoi_get_from_idx(vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face0 != NULL)) \ + { \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b0, face0); \ + next0 = NEXT_LOOKUP_UDP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_TRUE(face1 != NULL)) \ + { \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b1, face1); \ + next0 = NEXT_LOOKUP_UDP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + } while(0) + + +static uword +hicn_iface_udp4_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_output_x2 (4); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_output_x1 (4); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_udp4_output_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_iface_udp4_output_trace_t *t = + va_arg (*args, hicn_iface_udp4_output_trace_t *); + + s = format (s, "IFACE_UDP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_udp4_output_node) = +{ + .function = hicn_iface_udp4_output_node_fn, + .name = "hicn-iface-udp4-output", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_udp4_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_udp4_output_error_strings), + .error_strings = hicn_iface_udp4_output_error_strings, + .n_next_nodes = HICN_IFACE_UDP4_OUTPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_IFACE_UDP4_OUTPUT_NEXT_LOOKUP] = "ip4-lookup", + [HICN_IFACE_UDP4_OUTPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +static uword +hicn_iface_udp6_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_output_x2 (6); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_output_x1 (6); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); + +} + +/* packet trace format function */ +static u8 * +hicn_iface_udp6_output_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_iface_udp6_output_trace_t *t = + va_arg (*args, hicn_iface_udp6_output_trace_t *); + + s = format (s, "IFACE_UDP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_udp6_output_node) = +{ + .function = hicn_iface_udp6_output_node_fn, + .name = "hicn-iface-udp6-output", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_udp6_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_udp6_output_error_strings), + .error_strings = hicn_iface_udp6_output_error_strings, + .n_next_nodes = HICN_IFACE_UDP6_OUTPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_IFACE_UDP6_OUTPUT_NEXT_LOOKUP] = "ip6-lookup", + [HICN_IFACE_UDP6_OUTPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/iface_udp_node.h b/hicn-plugin/src/faces/udp/iface_udp_node.h new file mode 100755 index 000000000..957d19217 --- /dev/null +++ b/hicn-plugin/src/faces/udp/iface_udp_node.h @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_IFACE_UDP_H__ +#define __HICN_IFACE_UDP_H__ + +#include <vlib/vlib.h> + +extern vlib_node_registration_t hicn_iface_udp4_input_node; +extern vlib_node_registration_t hicn_iface_udp6_input_node; +extern vlib_node_registration_t hicn_iface_udp4_output_node; +extern vlib_node_registration_t hicn_iface_udp6_output_node; + +void hicn_iface_udp_init (vlib_main_t * vm); + +#endif // __HICN_FACE_UDP_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/hashtb.c b/hicn-plugin/src/hashtb.c new file mode 100755 index 000000000..332da350d --- /dev/null +++ b/hicn-plugin/src/hashtb.c @@ -0,0 +1,1008 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdlib.h> +#include <errno.h> +#include <assert.h> +#include <inttypes.h> + +#include <vlib/vlib.h> +#include <vppinfra/pool.h> + +#include "pcs.h" +#include "hashtb.h" +#include "parser.h" +#include "error.h" + +/* return dvd/dvr, rounded up (intended for integer values) */ +#define CEIL(dvd, dvr) \ + ({ \ + __typeof__ (dvd) _dvd = (dvd); \ + __typeof__ (dvr) _dvr = (dvr); \ + (_dvd + _dvr - 1)/_dvr; \ + }) + +#ifndef ALIGN8 +#define ALIGN8(p) (((p) + 0x7) & ~(0x7)) +#endif + +#ifndef ALIGNPTR8 +#define ALIGNPTR8(p) ((void *)(((u8 * )(p) + 0x7) & ~(0x7))) +#endif + +#ifndef ALIGN64 +#define ALIGN64(p) (((p) + 0x3f) & ~(0x3f)) +#endif + +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + + +/* + * Offset to aligned start of additional data (PIT/CS, FIB) embedded in each + * node. + */ +u32 ht_node_data_offset_aligned; + +/* Some support for posix vs vpp mem management */ +#define MEM_ALLOC(x) clib_mem_alloc_aligned((x), 8) +#define MEM_FREE(p) clib_mem_free((p)) + +/* + * Internal utilities + */ + +/* Allocate an overflow bucket */ +static hicn_hash_bucket_t * +alloc_overflow_bucket (hicn_hashtb_h h) +{ + hicn_hash_bucket_t *newbkt = NULL; + + if (h->ht_overflow_buckets_used < h->ht_overflow_bucket_count) + { + pool_get_aligned (h->ht_overflow_buckets, newbkt, 8); + + if (newbkt) + { + h->ht_overflow_buckets_used++; + } + } + return (newbkt); +} + +/* Free an overflow bucket; clear caller's pointer */ +static void +free_overflow_bucket (hicn_hashtb_h h, hicn_hash_bucket_t ** pb) +{ + hicn_hash_bucket_t *bkt = *pb; + + ASSERT (h->ht_overflow_buckets_used > 0); + + pool_put (h->ht_overflow_buckets, bkt); + h->ht_overflow_buckets_used--; + *pb = NULL; +} + +/* + * Init, allocate a new hashtable + */ +int +hicn_hashtb_alloc (hicn_hashtb_h * ph, u32 max_elems, size_t app_data_size) +{ + int ret = HICN_ERROR_NONE; + hicn_hashtb_h h = NULL; + u32 count; + u32 total_buckets; + size_t sz; + hicn_hash_node_t *nodep; + hicn_hash_bucket_t *bucket; + + if (ph == NULL) + { + ret = HICN_ERROR_HASHTB_INVAL; + goto done; + } + if (max_elems < HICN_HASHTB_MIN_ENTRIES || + max_elems > HICN_HASHTB_MAX_ENTRIES) + { + goto done; + } + /* Allocate and init main hashtable struct */ + h = MEM_ALLOC (sizeof (hicn_hashtb_t)); + if (h == NULL) + { + ret = HICN_ERROR_HASHTB_NOMEM; + goto done; + } + memset (h, 0, sizeof (hicn_hashtb_t)); + + /* Compute main table bucket (row) count and size, and allocate */ + + /* Consider the last entry as used for containing the overflow bucket */ + total_buckets = CEIL (max_elems, HICN_HASHTB_BUCKET_ENTRIES - 1); + count = ALIGN8 (CEIL (total_buckets, HICN_HASHTB_FILL_FACTOR)); + + h->ht_bucket_count = count; + + /* We _really_ expect to have buckets aligned on cache lines ... */ + sz = sizeof (hicn_hash_bucket_t); + assert (sz == ALIGN64 (sz)); + + h->ht_buckets = MEM_ALLOC (count * sz); + if (h->ht_buckets == NULL) + { + ret = HICN_ERROR_HASHTB_NOMEM; + goto done; + } + memset (h->ht_buckets, 0, count * sz); + + /* + * First time through, compute offset to aligned extra data start in + * each node struct it's crucial that both the node struct (that the + * base hashtable uses) and the extra data area (that's also probably + * a struct) are aligned. + */ + if (ht_node_data_offset_aligned == 0) + { + count = STRUCT_OFFSET_OF (hicn_hash_node_t, hn_data); + ht_node_data_offset_aligned = ALIGN8 (count); + } + //check app struct fits into space provided(HICN_HASH_NODE_APP_DATA_SIZE) + u32 ht_node_data_size; + ht_node_data_size = sizeof (hicn_hash_node_t) - ht_node_data_offset_aligned; + if (app_data_size > ht_node_data_size) + { + clib_error + ("hicn hashtable: fatal error: requested app data size(%u) > hashtb node's configured bytes available(%u), sizeof(hicn_shared_t)=%u, sizeof(hicn_pit_entry_t)=%u, sizeof(hicn_cs_entry_t)=%u", + app_data_size, ht_node_data_size, sizeof (hicn_pcs_shared_t), + sizeof (hicn_pit_entry_t), sizeof (hicn_cs_entry_t)); + } + /* + * Compute entry node count and size, allocate Allocate/'Hide' the + * zero-th node so can use zero as an 'empty' value + */ + pool_alloc_aligned (h->ht_nodes, max_elems, 8); + if (h->ht_nodes == NULL) + { + ret = HICN_ERROR_HASHTB_NOMEM; + goto done; + } + pool_get_aligned (h->ht_nodes, nodep, 8); + //alloc node 0 + nodep = nodep; /* Silence 'not used' warning */ + + h->ht_node_count = max_elems; + h->ht_nodes_used = 1; + + /* + * Compute overflow bucket count and size, allocate + */ + //count = ALIGN8(CEIL(max_elems, HICN_HASHTB_OVERFLOW_FRACTION)); + count = ALIGN8 (total_buckets - h->ht_bucket_count); + + pool_alloc_aligned (h->ht_overflow_buckets, count, 8); + if (h->ht_overflow_buckets == NULL) + { + ret = HICN_ERROR_HASHTB_NOMEM; + goto done; + } + /* 'Hide' the zero-th node so we can use zero as an 'empty' value */ + pool_get_aligned (h->ht_overflow_buckets, bucket, 8); + bucket = bucket; /* Silence 'not used' warning */ + + h->ht_overflow_bucket_count = count; + h->ht_overflow_buckets_used = 1; + +done: + + if (h) + { + if ((ret == HICN_ERROR_NONE) && ph) + { + *ph = h; + } + else + { + hicn_hashtb_free (&h); + } + } + return (ret); +} + +/* + * Free, de-allocate a hashtable + */ +int +hicn_hashtb_free (hicn_hashtb_h * ph) +{ + int ret = 0; + + if (ph) + { + if ((*ph)->ht_nodes) + { + pool_free ((*ph)->ht_nodes); + (*ph)->ht_nodes = 0; + } + if ((*ph)->ht_overflow_buckets) + { + pool_free ((*ph)->ht_overflow_buckets); + (*ph)->ht_overflow_buckets = 0; + } + if ((*ph)->ht_buckets) + { + MEM_FREE ((*ph)->ht_buckets); + (*ph)->ht_buckets = 0; + } + MEM_FREE (*ph); + + *ph = NULL; + } + return (ret); +} + + + +/* + * Basic api to lookup a specific hash+key tuple. This does the entire lookup + * operation, retrieving node structs and comparing keys, so it's not + * optimized for prefetching or high performance. + * + * Returns zero and mails back a node on success, errno otherwise. + */ +int +hicn_hashtb_lookup_node (hicn_hashtb_h h, const u8 * key, + u32 keylen, u64 hashval, u8 is_data, + u32 * node_id, u8 * dpo_ctx_id, u8 * vft_id, + u8 * is_cs, u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow) +{ + return (hicn_hashtb_lookup_node_ex + (h, key, keylen, hashval, is_data, FALSE /* deleted nodes */ , + node_id, + dpo_ctx_id, vft_id, is_cs, hash_entry_id, bucket_id, + bucket_is_overflow)); +} + +/* + * Extended api to lookup a specific hash+key tuple. The implementation + * allows the caller to locate nodes that are marked for deletion, which is + * part of some hashtable applications, such as the FIB. + * + * This does the entire lookup operation, retrieving node structs and comparing + * keys, so it's not optimized for prefetching or high performance. + * + * Returns zero and mails back a node on success, errno otherwise. + */ +int +hicn_hashtb_lookup_node_ex (hicn_hashtb_h h, const u8 * key, + u32 keylen, u64 hashval, u8 is_data, + int include_deleted_p, u32 * node_id, + u8 * dpo_ctx_id, u8 * vft_id, u8 * is_cs, + u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow) +{ + int i, ret = HICN_ERROR_HASHTB_HASH_NOT_FOUND; + int found_p = FALSE; + u32 bidx; + hicn_hash_bucket_t *bucket; + u32 current_bucket_id = ~0; + + /* + * Use some bits of the low half of the hash to locate a row/bucket + * in the table + */ + current_bucket_id = bidx = (hashval & (h->ht_bucket_count - 1)); + + bucket = h->ht_buckets + bidx; + + *bucket_is_overflow = 0; + /* Check the entries in the bucket for matching hash value */ + +loop_buckets: + + for (i = 0; i < HICN_HASHTB_BUCKET_ENTRIES && !found_p; i++) + { + /* + * If an entry is marked for deletion, ignore it unless the + * caller explicitly wants these nodes. + */ + if (bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_DELETED) + { + if (!include_deleted_p) + { + continue; + } + } + if (bucket->hb_entries[i].he_msb64 == hashval) + { + /* + * Found a candidate - must retrieve the actual node + * and check the key. + */ + *node_id = bucket->hb_entries[i].he_node; + *dpo_ctx_id = bucket->hb_entries[i].dpo_ctx_id; + *vft_id = bucket->hb_entries[i].vft_id; + *is_cs = + bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_CS_ENTRY; + *hash_entry_id = i; + *bucket_id = current_bucket_id; + /* + * If we are doing lookup for a data, do not take a + * lock in case of a hit with a CS entry + */ + if (!(is_data && *is_cs)) + { + bucket->hb_entries[i].locks++; + } + found_p = TRUE; + ret = HICN_ERROR_NONE; + goto done; + } + } + + /* + * Be prepared to continue to an overflow bucket if necessary. We + * only expect the last entry in a bucket to refer to an overflow + * bucket... + */ + i = HICN_HASHTB_BUCKET_ENTRIES - 1; + if (bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_OVERFLOW) + { + current_bucket_id = bucket->hb_entries[i].he_node; + bucket = pool_elt_at_index (h->ht_overflow_buckets, + bucket->hb_entries[i].he_node); + *bucket_is_overflow = 1; + goto loop_buckets; + } +done: + + return (ret); +} + +/** + * This function allows to split the hash verification from the comparison of + * the entire key. Useful to exploit prefertching. + * return 1 if equals, 0 otherwise + */ +int +hicn_node_compare (const u8 * key, u32 keylen, hicn_hash_node_t * node) +{ + + int ret = 0; + + if (key && keylen == node->hn_keysize) + { + ret = (memcmp (key, node->hn_key.ks.key, keylen) == 0); + } + return ret; +} + +/* + * Utility to init a new entry in a hashtable bucket/row. We use this to add + * new a node+hash, and to clear out an entry during removal. + */ +void +hicn_hashtb_init_entry (hicn_hash_entry_t * entry, u32 nodeidx, + u64 hashval, u32 locks) +{ + entry->he_msb64 = hashval; + entry->he_node = nodeidx; + + /* Clear out some other fields in the entry */ + entry->he_flags = 0; + entry->locks = locks; +} + +/* + * Insert a node into the hashtable. We expect the caller has a) computed the + * hash value to use, b) initialized the node with the hash and key info, and + * c) filled in its app-specific data portion of the node. + */ + +int +hicn_hashtb_insert (hicn_hashtb_h h, hicn_hash_node_t * node, + hicn_hash_entry_t ** hash_entry, u64 hash, + u32 * node_id, + u8 * dpo_ctx_id, u8 * vft_id, u8 * is_cs, + u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow) +{ + int i, ret = HICN_ERROR_HASHTB_INVAL; + u32 bidx; + hicn_hash_bucket_t *bucket, *newbkt; + int use_seven; + u32 current_bucket_id = ~0; + int is_overflow = 0; + + *hash_entry = NULL; + + if (h == NULL) + { + goto done; + } + /* + * Use some bits of the low half of the hash to locate a row/bucket + * in the table + */ + current_bucket_id = bidx = (hash & (h->ht_bucket_count - 1)); + + bucket = h->ht_buckets + bidx; + + use_seven = (h->ht_flags & HICN_HASHTB_FLAG_USE_SEVEN); + + /* Locate a free entry slot in the bucket */ + +loop_buckets: + + for (i = 0; i < HICN_HASHTB_BUCKET_ENTRIES; i++) + { + + /* + * If an entry is marked for deletion, ignore it + */ + if (bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_DELETED) + { + continue; + } + /* + * Be sure that we are not inserting the same entry twice + */ + if (bucket->hb_entries[i].he_msb64 == hash) + { + /* + * We hit an existing pit entry. increase lock. + */ + + *node_id = bucket->hb_entries[i].he_node; + *dpo_ctx_id = bucket->hb_entries[i].dpo_ctx_id; + *vft_id = bucket->hb_entries[i].vft_id; + *is_cs = + bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_CS_ENTRY; + *hash_entry_id = i; + *bucket_id = current_bucket_id; + *hash_entry = &(bucket->hb_entries[i]); + /* + * If we are doing lookup for a data, do not take a + * lock in case of a hit with a CS entry + */ + bucket->hb_entries[i].locks++; + *bucket_is_overflow = is_overflow; + ret = HICN_ERROR_HASHTB_EXIST; + goto done; + } + if ((bucket->hb_entries[i].he_msb64 == 0LL) && + (bucket->hb_entries[i].he_node == 0)) + { + /* Found a candidate -- fill it in */ + + /* + * Special case if the application asked not to use + * the last entry in each bucket. + */ + if ((i != (HICN_HASHTB_BUCKET_ENTRIES - 1)) || use_seven) + { + hicn_hashtb_init_entry (&(bucket->hb_entries[i]), + NODE_IDX_FROM_NODE (node, h), hash, 0); + + *hash_entry = &(bucket->hb_entries[i]); + + node->bucket_id = current_bucket_id; + node->entry_idx = i; + if (is_overflow) + node->hn_flags |= HICN_HASH_NODE_OVERFLOW_BUCKET; + + ret = HICN_ERROR_NONE; + goto done; + } + } + } + /* + * Be prepared to continue to an overflow bucket if necessary, or to + * add a new overflow bucket. We only expect the last entry in a + * bucket to refer to an overflow bucket... + */ + i = HICN_HASHTB_BUCKET_ENTRIES - 1; + if (bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_OVERFLOW) + { + /* Existing overflow bucket - re-start the search loop */ + current_bucket_id = bucket->hb_entries[i].he_node; + bucket = pool_elt_at_index (h->ht_overflow_buckets, current_bucket_id); + is_overflow = 1; + goto loop_buckets; + + } + else + { + /* + * Overflow - reached the end of a bucket without finding a + * free entry slot. Need to allocate an overflow bucket, and + * connect it to this bucket. + */ + newbkt = alloc_overflow_bucket (h); + if (newbkt == NULL) + { + ret = HICN_ERROR_HASHTB_NOMEM; + goto done; + } + /* + * We're touching some more bytes than we absolutely have to + * here, but ... that seems ok. + */ + memset (newbkt, 0, sizeof (hicn_hash_bucket_t)); + + if (use_seven) + { + /* + * Copy existing entry into new bucket - we really + * expect these to be properly aligned so they can be + * treated as int. + */ + memcpy (&(newbkt->hb_entries[0]), + &(bucket->hb_entries[i]), sizeof (hicn_hash_entry_t)); + + /* Update bucket id and entry_idx on the hash node */ + hicn_hash_node_t *node = + pool_elt_at_index (h->ht_nodes, newbkt->hb_entries[0].he_node); + node->bucket_id = (newbkt - h->ht_overflow_buckets); + node->entry_idx = 0; + node->hn_flags |= HICN_HASH_NODE_OVERFLOW_BUCKET; + + } + /* + * Connect original bucket to the index of the new overflow + * bucket + */ + bucket->hb_entries[i].he_flags |= HICN_HASH_ENTRY_FLAG_OVERFLOW; + bucket->hb_entries[i].he_node = (newbkt - h->ht_overflow_buckets); + + /* Add new entry to new overflow bucket */ + bucket = newbkt; + + /* + * Use entry [1] in the new bucket _if_ we just copied into + * entry [zero] above. + */ + if (use_seven) + { + + hicn_hashtb_init_entry (&(bucket->hb_entries[1]), + NODE_IDX_FROM_NODE (node, h), hash, 0); + *hash_entry = &(bucket->hb_entries[1]); + + node->bucket_id = (newbkt - h->ht_overflow_buckets); + node->entry_idx = 1; + node->hn_flags |= HICN_HASH_NODE_OVERFLOW_BUCKET; + } + else + { + + hicn_hashtb_init_entry (&(bucket->hb_entries[0]), + NODE_IDX_FROM_NODE (node, h), hash, 0); + *hash_entry = &(bucket->hb_entries[0]); + node->bucket_id = (newbkt - h->ht_overflow_buckets); + node->entry_idx = 0; + node->hn_flags |= HICN_HASH_NODE_OVERFLOW_BUCKET; + } + } + + /* And we're done with the overflow bucket */ + ret = HICN_ERROR_NONE; + +done: + + return (ret); +} + +/* + * Delete a node from a hashtable using the node itself, and delete/free the + * node. Caller's pointer is cleared on success. + */ +void +hicn_hashtb_delete (hicn_hashtb_h h, hicn_hash_node_t ** pnode, u64 hashval) +{ + + hicn_hashtb_remove_node (h, *pnode, hashval); + hicn_hashtb_free_node (h, *pnode); + *pnode = NULL; + +} + +/* + * Delete an entry from a hashtable using the node itself. If the node was + * stored in an overflow bucket, and the bucket is empty after freeing the + * node, the bucket is freed as well. + */ +void +hicn_hashtb_remove_node (hicn_hashtb_h h, hicn_hash_node_t * node, + u64 hashval) +{ + int i, count; + u32 bidx, overflow_p; + hicn_hash_bucket_t *bucket, *parent; + + if ((h == NULL) || (node == NULL)) + { + goto done; + } + if (node->hn_flags & HICN_HASH_NODE_OVERFLOW_BUCKET) + bucket = pool_elt_at_index (h->ht_overflow_buckets, node->bucket_id); + else + { + /* + * Use some bits of the low half of the hash to locate a + * row/bucket in the table + */ + bidx = (hashval & (h->ht_bucket_count - 1)); + ASSERT (bidx == node->bucket_id); + bucket = h->ht_buckets + node->bucket_id; + } + + overflow_p = node->hn_flags & HICN_HASH_NODE_OVERFLOW_BUCKET; + + /* Clear out the entry. */ + hicn_hashtb_init_entry (&(bucket->hb_entries[node->entry_idx]), 0, 0LL, 0); + + if (!overflow_p) + { + /* + * And we're done, in the easy case where we didn't change an + * overflow bucket + */ + goto done; + } + /* + * The special case: if this is the last remaining entry in an + * overflow bucket, liberate the bucket. That in turn has a special + * case if this bucket is in the middle of a chain of overflow + * buckets. + * + * Note that we're not trying aggressively (yet) to condense buckets at + * every possible opportunity. + */ + + /* + * Reset this flag; we'll set it again if this bucket links to + * another + */ + overflow_p = FALSE; + + for (i = 0, count = 0; i < HICN_HASHTB_BUCKET_ENTRIES; i++) + { + if (bucket->hb_entries[i].he_node != 0) + { + count++; + } + if (i == (HICN_HASHTB_BUCKET_ENTRIES - 1) && + (bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_OVERFLOW)) + { + count--; /* Doesn't count as a 'real' entry */ + overflow_p = TRUE; + } + } + + if (count > 0) + { + /* Still a (real) entry in the row */ + goto done; + } + /* + * Need to locate the predecessor of 'bucket': start at the beginning + * of the chain of buckets and move forward + */ + bidx = (hashval & (h->ht_bucket_count - 1)); + + for (parent = h->ht_buckets + bidx; parent != NULL;) + { + + if ((parent->hb_entries[(HICN_HASHTB_BUCKET_ENTRIES - 1)].he_flags & + HICN_HASH_ENTRY_FLAG_OVERFLOW) == 0) + { + parent = NULL; + break; + } + bidx = parent->hb_entries[(HICN_HASHTB_BUCKET_ENTRIES - 1)].he_node; + + if (pool_elt_at_index (h->ht_overflow_buckets, bidx) == bucket) + { + /* + * Found the predecessor of 'bucket'. If 'bucket' has + * a successor, connect 'parent' to it, and take + * 'bucket out of the middle. + */ + if (overflow_p) + { + parent->hb_entries[(HICN_HASHTB_BUCKET_ENTRIES - 1)].he_node = + bucket->hb_entries[(HICN_HASHTB_BUCKET_ENTRIES - 1)].he_node; + } + else + { + /* + * Just clear the predecessor entry pointing + * at 'bucket' + */ + hicn_hashtb_init_entry (&parent->hb_entries + [(HICN_HASHTB_BUCKET_ENTRIES - 1)], 0, + 0LL, 0); + } + + break; + } + /* + * After the first iteration, 'parent' will be an overflow + * bucket too + */ + parent = pool_elt_at_index (h->ht_overflow_buckets, bidx); + } + + /* We really expect to have found the predecessor */ + ASSERT (parent != NULL); + + /* And now, finally, we can put 'bucket' back on the free list */ + free_overflow_bucket (h, &bucket); + +done: + return; +} + +/* + * Prepare a hashtable node, supplying the key, and computed hash info. + */ +void +hicn_hashtb_init_node (hicn_hashtb_h h, hicn_hash_node_t * node, + const u8 * key, u32 keylen) +{ + assert (h != NULL); + assert (node != NULL); + assert (keylen <= HICN_PARAM_HICN_NAME_LEN_MAX); + + /* Init the node struct */ + node->hn_flags = HICN_HASH_NODE_FLAGS_DEFAULT; + node->hn_keysize = 0; + node->hn_keysize = keylen; + memcpy (node->hn_key.ks.key, key, keylen); + node->bucket_id = ~0; + node->entry_idx = ~0; +} + +/* + * Release a hashtable node back to the free list when an entry is cleared + */ +void +hicn_hashtb_free_node (hicn_hashtb_h h, hicn_hash_node_t * node) +{ + ASSERT (h->ht_nodes_used > 0); + + /* Return 'node' to the free list */ + pool_put (h->ht_nodes, node); + h->ht_nodes_used--; + +} + +/* + * Walk a hashtable, iterating through the nodes, keeping context in 'ctx'. + */ +int +hicn_hashtb_next_node (hicn_hashtb_h h, hicn_hash_node_t ** pnode, u64 * ctx) +{ + int i, j, ret = HICN_ERROR_HASHTB_INVAL; + u32 bidx, entry; + hicn_hash_bucket_t *bucket; + + if ((h == NULL) || (pnode == NULL) || (ctx == NULL)) + { + goto done; + } + /* Special-case for new iteration */ + if (*ctx == HICN_HASH_WALK_CTX_INITIAL) + { + bidx = 0; + bucket = &h->ht_buckets[0]; + entry = 0; + j = 0; + i = 0; + goto search_table; + } + /* Convert context to bucket and entry indices */ + bidx = *ctx & 0xffffffffLL; + entry = *ctx >> 32; + + if (bidx >= h->ht_bucket_count) + { + ret = HICN_ERROR_HASHTB_HASH_NOT_FOUND; + goto done; + } + bucket = h->ht_buckets + bidx; + + /* Init total index into entries (includes fixed bucket and overflow) */ + j = 0; + +skip_processed_bucket_chunks: + /* + * Figure out where to resume the search for the next entry in the + * table, by trying to find the last entry returned, from the cookie. + * Loop walks one (regular or overflow) bucket chunk, label is used + * for walking chain of chunks. Note that if there was a deletion or + * an addition that created an overflow, iterator can skip entries or + * return duplicate entries, for entries that are present from before + * the walk starts until after it ends. + */ + + for (i = 0; i < HICN_HASHTB_BUCKET_ENTRIES; i++, j++) + { + if (j > entry) + { + /* + * Start search for next here, use existing 'bucket' + * and 'i' + */ + break; + } + /* + * If an entry is marked for deletion, ignore it + */ + if (bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_DELETED) + { + continue; + } + /* + * Be prepared to continue to an overflow bucket if + * necessary. (We only expect the last entry in a bucket to + * refer to an overflow bucket...) + */ + if (i == (HICN_HASHTB_BUCKET_ENTRIES - 1)) + { + if (bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_OVERFLOW) + { + bucket = pool_elt_at_index (h->ht_overflow_buckets, + bucket->hb_entries[i].he_node); + + /* Increment overall entry counter 'j' */ + j++; + + goto skip_processed_bucket_chunks; + } + /* + * end of row (end of fixed bucket plus any + * overflows) + */ + i = 0; + j = 0; + + bidx++; + + /* Special case - we're at the end */ + if (bidx >= h->ht_bucket_count) + { + ret = HICN_ERROR_HASHTB_HASH_NOT_FOUND; + goto done; + } + bucket = h->ht_buckets + bidx; + break; + } + } + +search_table: + + /* + * Now we're searching through the table for the next entry that's + * set + */ + + for (; i < HICN_HASHTB_BUCKET_ENTRIES; i++, j++) + { + /* + * If an entry is marked for deletion, ignore it + */ + if (bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_DELETED) + { + continue; + } + /* Is this entry set? */ + if (bucket->hb_entries[i].he_node != 0) + { + + /* Retrieve the node struct */ + *pnode = pool_elt_at_index (h->ht_nodes, + bucket->hb_entries[i].he_node); + + /* + * Set 'entry' as we exit, so we can update the + * cookie + */ + entry = j; + ret = HICN_ERROR_NONE; + break; + } + /* + * Be prepared to continue to an overflow bucket if + * necessary. (We only expect the last entry in a bucket to + * refer to an overflow bucket...) + */ + if (i == (HICN_HASHTB_BUCKET_ENTRIES - 1)) + { + if (bucket->hb_entries[i].he_flags & HICN_HASH_ENTRY_FLAG_OVERFLOW) + { + bucket = pool_elt_at_index (h->ht_overflow_buckets, + bucket->hb_entries[i].he_node); + /* + * Reset per-bucket index 'i', here (not done + * in iterator) + */ + i = 0; + /* Increment overall entry counter 'j' */ + j++; + + goto search_table; + } + else + { + /* + * Move to next bucket, resetting per-bucket + * and overall entry indexes + */ + i = 0; + j = 0; + + bidx++; + + /* Special case - we're at the end */ + if (bidx >= h->ht_bucket_count) + { + ret = HICN_ERROR_HASHTB_HASH_NOT_FOUND; + goto done; + } + bucket = h->ht_buckets + bidx; + goto search_table; + } + } + } + +done: + + if (ret == HICN_ERROR_NONE) + { + /* Update context */ + *ctx = bidx; + *ctx |= ((u64) entry << 32); + } + return (ret); +} + +int +hicn_hashtb_key_to_buf (u8 ** vec_res, hicn_hashtb_h h, + const hicn_hash_node_t * node) +{ + int ret = HICN_ERROR_NONE; + u8 *vec = *vec_res; + + if (node->hn_keysize <= HICN_HASH_KEY_BYTES) + { + vec_add (vec, node->hn_key.ks.key, node->hn_keysize); + } + *vec_res = vec; + return (ret); +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/hashtb.h b/hicn-plugin/src/hashtb.h new file mode 100755 index 000000000..1690419a1 --- /dev/null +++ b/hicn-plugin/src/hashtb.h @@ -0,0 +1,550 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_HASHTB_H__ +#define __HICN_HASHTB_H__ + +#include <stdint.h> +#include <vppinfra/bihash_8_8.h> +#include <vppinfra/bihash_24_8.h> + +#include "params.h" +#include "parser.h" +#include "error.h" + +/* Handy abbreviations for success status, and for boolean values */ +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + +/* + * Lookup is finding a hashtable record whose name matches the name being + * looked up. Most of the lookup work is based on the hash value of the two + * names. Note that the intel cache line size is 64 bytes, and some platforms + * load in 2 cache lines together. - first step is to match a record at the + * bucket/slot level (htab has an array of htbucket_t/htbc_elmt, where each + * bucket has 7 slots to hold indices for entries.) Matching at this level + * implies - the hashes of the lookup name and the record map to the same + * bucket - the high 32 bits of the hashes (slot bce_hash_msb32s) match. Read + * cost (on the hash table size, i.e. ignoring reading the name being looked + * up): - First step normally requires 1 cache line load to pull in the + * 64-byte htbucket_t with the 7 element slot table holding the hash_msb32s. + * - In the event (hopefully rare for a hash table with appropriate number of + * buckets) that more than 7 elements hash to the same bucket, lookup may + * well need to look not only at the static htbc_elmt_t but at the chain of + * dynamically allocated htbc_elmt_t's linked to the static htbc_elmt_t, + * where each of these holds slot entries for additional elements. - Before + * reaching that point, it is initially required is to read in the hash table + * record fields (ht_bucket_buf, htnode buf, etc) holding pointers to the + * arrays, but these cache lines are common to all lookups so will likely + * already be in the cache. - second step is to match at the record level + * (htnode/htkb level) once a slot-level match happens. Matching at this + * level implies the following match - the hash values (the full 64 bits vs. + * bucket+32 msb, above) With siphash, two names hashing to the same 64-bit + * value is quite rare. - the name which, on the hash table side, is stored + * as a list of htkb_t (key buffers). [In some cases, the full name is not + * compared, and a match is assumed based on hash value match. Read cost: - + * htnode_t, in one cache line, holds hash value and index for the htkb at + * the head of the key buffer list - each key buffer (htkb_t) is cache line + * aligned/sized, and holds 60 bytes of the name and requires a cache line + * read. Simplification is that a fib lookup requires 3 cache lines: - bucket + * - htnode - single key buffer (for cases where a name comparision is done) + * + * Some hashtables (for which rare false positives are tolerable) store hash + * values but no keys. (In ISM NDN forwarder, this was used for dcm_dpf: data + * cache manager's dataplane filter, where speed was critical and very rare + * false positives would be detected in the full dcm check.) - No key buffers + * are used (or even allocated at hash table creation). + */ + +#define HICN_HASH_INVALID_IDX ~0 +/* + * for hicn_hashtb_next_node() iterator, this otherwise illegal context value + * indicates first call of iteration. Note: must not be 0, which is a legal + * context value. + */ +#define HICN_HASH_WALK_CTX_INITIAL (~((u64)0)) + +/* + * Key memory allocation scheme. + * + * The key is the bytestring that a hashtable entry is storing, e.g. a fib + * prefix or packet name. The hash of the name is used not just to pick the + * bucket, but also as a surrogate for the actual key value. + * + * Client calls pass key/name as contiguous memory for lookup/add/delete but + * hashable stores its copy of the key/name as a list of one or more hash_key + * structs. - key memory is managed as a list of keys (cache line + * sized/aligned buffers). - If (keysize < 128) then use key struct's full + * 128 bytes - If not, first key struct is head of a linked list of elements + * where the first bytes are used for the key and the last 4 bytes are the + * index of the next entry (or an end marker). - key memory is generally the + * single largest use of memory in the hash table, especially for PIT, as + * names are bigger than node structs (which is also per name/entry). + * + */ + +/* Compute hash node index from node pointer */ +#define NODE_IDX_FROM_NODE(p, h) \ + (u32)((p) - ((h)->ht_nodes)) + +#define HICN_HASH_KEY_BYTES 20 + +typedef struct +{ + struct + { + u8 key[HICN_HASH_KEY_BYTES]; + } ks; /* Entire key in one block */ +} hicn_hash_key_t; + +/* + * Ratio of extra key blocks to allocate, in case the embedded ones aren't + * sufficient. This is the fraction of the number of entries allocated. + */ +#define HICN_HASHTB_KEY_RATIO 8 + +/* + * hash node, used to store a hash table entry; indexed by an entry in a + * bucket. the node contains an embedded key; long keys are stored as chains + * of keys. + * + * The memory block for a node includes space for client data, additional memory + * located off the end of the htnode data structure. Size of client-supplied + * data is fixed, so we can use vpp pools. The PIT and FIB need to ensure + * that they fit within the available data area, or change the size to + * accomodate their needs. + * + * NOTE: app_data_size currently applies to all apps, i.e. bigger FIB nodes + * means (leads to, requires) bigger PCS nodes + */ + +/* Size this so that we can offer 64B aligned on 64-bits to the applications */ +/* New PIT entry syze 62B */ +#define HICN_HASH_NODE_APP_DATA_SIZE 4184 //to support 512 entry //96 //190 to support 50 faces + +/* How to align in the right way */ +typedef struct __attribute__ ((packed)) hicn_hash_node_s +{ + /* Bucket id containing the corresponding hash entry. */ + u32 bucket_id; + + /* Hash entry index in the bucket */ + u32 entry_idx; + + /* Total size of the key */ + u16 hn_keysize; + + /* 1 byte of flags for application use */ + u8 hn_flags; + + u8 _hn_reserved1; /* TBD, to align what follows back to + * 32 */ + + hicn_hash_key_t hn_key; /* Key value embedded in the node, may chain + * to more key buffers if necessary */ + + /* 32B + HICN_HASH_NODE_APP_DATA_SIZE */ + /* Followed by app-specific data (fib or pit or cs entry, e.g.) */ + u8 hn_data[HICN_HASH_NODE_APP_DATA_SIZE]; + +} hicn_hash_node_t; + +#define HICN_HASH_NODE_FLAGS_DEFAULT 0x00 +#define HICN_HASH_NODE_CS_FLAGS 0x01 +#define HICN_HASH_NODE_OVERFLOW_BUCKET 0x02 + +/* + * hicn_hash_entry_t Structure holding all or part of a hash value, a node + * index, and other key pieces of info. + * + * - 128 bytes/bucket with 19 bytes/entry gives 6 entries, or 5 entries plus + * next bucket ptr if overflow Changes in this structure will affect + * hicn_hash_bucket_t + */ +typedef struct __attribute__ ((packed)) hicn_hash_entry_s +{ + + /* MSB of the hash value */ + u64 he_msb64; + + /* Index of node block */ + u32 he_node; + + /* + * Lock to prevent hash_node deletion while there are still interest + * or data referring to it + */ + u32 locks; + + /* A few flags, including 'this points to a chain of buckets' */ + u8 he_flags; + + /* + * Index of the virtual function table corresponding to the dpo_ctx + * strategy + */ + u8 vft_id; + + /* Index of dpo */ + u8 dpo_ctx_id; + +} hicn_hash_entry_t; + +#define HICN_HASH_ENTRY_FLAGS_DEFAULT 0x00 + +/* If entry is PIT this flag is 0 */ +#define HICN_HASH_ENTRY_FLAG_CS_ENTRY 0x01 + +/* + * This entry heads a chain of overflow buckets (we expect to see this only + * in the last entry in a bucket.) In this case, the index is to an overflow + * bucket rather than to a single node block. + */ +#define HICN_HASH_ENTRY_FLAG_OVERFLOW 0x04 + +/* This entry has been marked for deletion */ +#define HICN_HASH_ENTRY_FLAG_DELETED 0x08 + +/* Use fast he_timeout units for expiration, slow if not */ +#define HICN_HASH_ENTRY_FLAG_FAST_TIMEOUT 0x10 + +/* + * hash bucket: Contains an array of entries. Cache line sized/aligned, so no + * room for extra fields unless bucket size is increased to 2 cache lines or + * the entry struct shrinks. + */ + +/* + * Overflow bucket ratio as a fraction of the fixed/configured count; a pool + * of hash buckets used if a row in the fixed table overflows. + */ +#define HICN_HASHTB_BUCKET_ENTRIES 6 + +typedef struct __attribute__ ((packed)) +{ + hicn_hash_entry_t hb_entries[HICN_HASHTB_BUCKET_ENTRIES]; + u64 align1; + u32 align2; + u16 align3; +} hicn_hash_bucket_t; + +/* Overall target fill-factor for the hashtable */ +#define HICN_HASHTB_FILL_FACTOR 4 + +#define HICN_HASHTB_MIN_ENTRIES (1 << 4) // includes dummy node 0 entry +#define HICN_HASHTB_MAX_ENTRIES (1 << 24) + +#define HICN_HASHTB_MIN_BUCKETS (1 << 10) + +/* + * htab_t + * + * Hash table main structure. + * + * Contains - pointers to dynamically allocated arrays of cache-line + * sized/aligned structures (buckets, nodes, keys). Put frequently accessed + * fields in the first cache line. + */ +typedef struct hicn_hashtb_s +{ + + /* 8B - main array of hash buckets */ + hicn_hash_bucket_t *ht_buckets; + + /* 8B - just-in-case block of overflow buckets */ + hicn_hash_bucket_t *ht_overflow_buckets; + + /* 8B - block of nodes associated with entries in buckets */ + hicn_hash_node_t *ht_nodes; + + /* Flags */ + u32 ht_flags; + + /* Count of buckets allocated in the main array */ + u32 ht_bucket_count; + + /* Count of overflow buckets allocated */ + u32 ht_overflow_bucket_count; + u32 ht_overflow_buckets_used; + + /* Count of nodes allocated */ + u32 ht_node_count; + u32 ht_nodes_used; + + /* Count of overflow key structs allocated */ + u32 ht_key_count; + u32 ht_keys_used; + +} hicn_hashtb_t, *hicn_hashtb_h; + +/* + * Offset to aligned start of additional data (PIT/CS, FIB) embedded in each + * node. + */ +extern u32 ht_node_data_offset_aligned; + +/* Flags for hashtable */ + +#define HICN_HASHTB_FLAGS_DEFAULT 0x00 + +/* + * Don't use the last entry in each bucket - only use it for overflow. We use + * this for the FIB, currently, so that we can support in-place FIB changes + * that would be difficult if there were hash entry copies as part of + * overflow handling. + */ +#define HICN_HASHTB_FLAG_USE_SEVEN 0x04 +#define HICN_HASHTB_FLAG_KEY_FMT_PFX 0x08 +#define HICN_HASHTB_FLAG_KEY_FMT_NAME 0x10 + +/* + * Max prefix name components we'll support in our incremental hashing; + * currently used only for LPM in the FIB. + */ +#define HICN_HASHTB_MAX_NAME_COMPS HICN_PARAM_FIB_ENTRY_PFX_COMPS_MAX + +/* + * APIs and inlines + */ + +/* Compute hash node index from node pointer */ +static inline u32 +hicn_hashtb_node_idx_from_node (hicn_hashtb_h h, hicn_hash_node_t * p) +{ + return (p - h->ht_nodes); +} + +/* Retrieve a hashtable node by node index */ +static inline hicn_hash_node_t * +hicn_hashtb_node_from_idx (hicn_hashtb_h h, u32 idx) +{ + return (pool_elt_at_index (h->ht_nodes, idx)); +} + +/* Allocate a brand-new hashtable */ +int +hicn_hashtb_alloc (hicn_hashtb_h * ph, u32 max_elems, size_t app_data_size); + +/* Free a hashtable, including its embedded arrays */ +int hicn_hashtb_free (hicn_hashtb_h * ph); + +/* Hash a bytestring, currently using bihash */ +u64 hicn_hashtb_hash_bytestring (const u8 * key, u32 keylen); + +always_inline hicn_hash_entry_t * +hicn_hashtb_get_entry (hicn_hashtb_h h, u32 entry_idx, u32 bucket_id, + u8 bucket_overflow) +{ + hicn_hash_bucket_t *bucket; + if (bucket_overflow) + bucket = pool_elt_at_index (h->ht_overflow_buckets, bucket_id); + else + bucket = (hicn_hash_bucket_t *) (h->ht_buckets + bucket_id); + + return &(bucket->hb_entries[entry_idx]); +} + +/* Hash a name, currently using bihash */ +always_inline u64 +hicn_hashtb_hash_name (const u8 * key, u16 keylen) +{ + if (key != NULL && keylen == HICN_V4_NAME_LEN) + { + clib_bihash_kv_8_8_t kv; + kv.key = ((u64 *) key)[0]; + return clib_bihash_hash_8_8 (&kv); + } + else if (key != NULL && keylen == HICN_V6_NAME_LEN) + { + clib_bihash_kv_24_8_t kv; + kv.key[0] = ((u64 *) key)[0]; + kv.key[1] = ((u64 *) key)[1]; + kv.key[2] = ((u32 *) key)[4]; + return clib_bihash_hash_24_8 (&kv); + } + else + { + return (-1LL); + } +} + + +/* + * Prepare a hashtable node for insertion, supplying the key and computed + * hash info. This sets up the node->key relationship, possibly allocating + * overflow key buffers. + */ +void +hicn_hashtb_init_node (hicn_hashtb_h h, hicn_hash_node_t * node, + const u8 * key, u32 keylen); + +/* + * Insert a node into the hashtable. We expect the caller has used the init + * api to set the node key and hash info, and populated the extra data area + * (if any) - or done the equivalent work itself. + */ +int +hicn_hashtb_insert (hicn_hashtb_h h, hicn_hash_node_t * node, + hicn_hash_entry_t ** hash_entry, u64 hash, + u32 * node_id, + u8 * dpo_ctx_id, u8 * vft_id, u8 * is_cs, + u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow); + +/* + * Basic api to lookup a specific hash+key tuple. This does the entire lookup + * operation, retrieving node structs and comparing keys, so it's not + * optimized for prefetching or high performance. + * + * Returns zero and mails back a node on success, errno otherwise. + */ +int +hicn_hashtb_lookup_node (hicn_hashtb_h h, const u8 * key, + u32 keylen, u64 hashval, u8 is_data, + u32 * node_id, u8 * dpo_ctx_id, u8 * vft_id, + u8 * is_cs, u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow); + +/* + * Extended api to lookup a specific hash+key tuple. The implementation + * allows the caller to locate nodes that are marked for deletion; this is + * part of some hashtable applications, such as the FIB. + * + * This does the entire lookup operation, retrieving node structs and comparing + * keys, so it's not optimized for prefetching or high performance. + * + * Returns zero and mails back a node on success, errno otherwise. + */ +int +hicn_hashtb_lookup_node_ex (hicn_hashtb_h h, const u8 * key, + u32 keylen, u64 hashval, u8 is_data, + int include_deleted_p, u32 * node_id, + u8 * dpo_ctx_id, u8 * vft_id, u8 * is_cs, + u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow); + +/** + * @brief Compares the key in the node with the given key + * + * This function allows to split the hash verification from the comparison of + * the entire key. Useful to exploit prefertching. + * @result 1 if equals, 0 otherwise + */ +int hicn_node_compare (const u8 * key, u32 keylen, hicn_hash_node_t * node); + +/* + * Remove a node from a hashtable using the node itself. The internal data + * structs are cleaned up, but the node struct itself is not: the caller must + * free the node itself. + */ +void hicn_hashtb_remove_node (hicn_hashtb_h h, hicn_hash_node_t * node, + u64 hashval); + +/* + * Delete a node from a hashtable using the node itself, and delete/free the + * node. Caller's pointer is cleared on success. + */ +void hicn_hashtb_delete (hicn_hashtb_h h, hicn_hash_node_t ** pnode, + u64 hashval); + +/* + * Utility to init a new entry in a hashtable bucket/row. We use this to add + * new a node+hash, and to clear out an entry during removal. + */ +void +hicn_hashtb_init_entry (hicn_hash_entry_t * entry, + u32 nodeidx, u64 hashval, u32 locks); + + +/* + * Return data area embedded in a hash node struct. We maintain an 'offset' + * value in case the common node body struct doesn't leave the data area + * aligned properly. + */ +static inline void * +hicn_hashtb_node_data (hicn_hash_node_t * node) +{ + return ((u8 *) (node) + ht_node_data_offset_aligned); +} + +/* + * Use some bits of the low half of the hash to locate a row/bucket in the + * table + */ +static inline u32 +hicn_hashtb_bucket_idx (hicn_hashtb_h h, u64 hashval) +{ + return ((u32) (hashval & (h->ht_bucket_count - 1))); +} + +/* + * Return a hash node struct from the free list, or NULL. Note that the + * returned struct is _not_ cleared/zeroed - init is up to the caller. + */ +static inline hicn_hash_node_t * +hicn_hashtb_alloc_node (hicn_hashtb_h h) +{ + hicn_hash_node_t *p = NULL; + + if (h->ht_nodes_used < h->ht_node_count) + { + pool_get_aligned (h->ht_nodes, p, 8); + h->ht_nodes_used++; + } + return (p); +} + +/* + * Release a hashtable node back to the free list when an entry is cleared + */ +void hicn_hashtb_free_node (hicn_hashtb_h h, hicn_hash_node_t * node); + +/* + * Walk a hashtable, iterating through the nodes, keeping context in 'ctx' + * between calls. + * + * Set the context value to HICN_HASH_WALK_CTX_INITIAL to start an iteration. + */ +int +hicn_hashtb_next_node (hicn_hashtb_h h, hicn_hash_node_t ** pnode, u64 * ctx); + + +int +hicn_hashtb_key_to_str (hicn_hashtb_h h, const hicn_hash_node_t * node, + char *buf, int bufsize, int must_fit); + +/* + * single hash full name can pass offset for two hashes calculation in case + * we use CS and PIT in a two steps hashes (prefix + seqno) + */ +always_inline int +hicn_hashtb_fullhash (const u8 * name, u16 namelen, u64 * name_hash) +{ + *name_hash = hicn_hashtb_hash_name (name, namelen); + return (*name_hash != (-1LL) ? HICN_ERROR_NONE : HICN_ERROR_HASHTB_INVAL); +} + +#endif /* // __HICN_HASHTB_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/hicn.api b/hicn-plugin/src/hicn.api new file mode 100755 index 000000000..e7d7d33c4 --- /dev/null +++ b/hicn-plugin/src/hicn.api @@ -0,0 +1,538 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +define hicn_api_node_params_set +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Enable / disable ICN forwarder in VPP */ + u8 enable_disable; + + /* PIT maximum size, otherwise -1 to assign default value */ + i32 pit_max_size; + + /* CS maximum size, otherwise -1 to assign default value */ + i32 cs_max_size; + + /* Portion of CS reserved to application, otherwise -1 to assign default value */ + i32 cs_reserved_app; + + /* Default PIT entry lifetime */ + f64 pit_dflt_lifetime_sec; + + /* Lower bound on PIT entry lifetime */ + f64 pit_min_lifetime_sec; + + /* Upper bound on PIT entry lifetime */ + f64 pit_max_lifetime_sec; +}; + +define hicn_api_node_params_set_reply +{ + /* From the request */ + u32 context; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_node_params_get +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; +}; + +define hicn_api_node_params_get_reply +{ + /* From the request */ + u32 context; + + /* Return value, zero means all OK */ + i32 retval; + + /* Enabled / disabled flag */ + u8 is_enabled; + + /* compile-time plugin features */ + u8 feature_cs; + + /* Number of VPP workers */ + u32 worker_count; + + /* PIT maximum size, otherwise -1 to assign default value */ + u32 pit_max_size; + + /* CS maximum size, otherwise -1 to assign default value */ + u32 cs_max_size; + + /* Default PIT entry lifetime */ + f64 pit_dflt_lifetime_sec; + + /* Lower bound on PIT entry lifetime */ + f64 pit_min_lifetime_sec; + + /* Upper bound on PIT entry lifetime */ + f64 pit_max_lifetime_sec; +}; + +define hicn_api_node_stats_get +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; +}; + +define hicn_api_node_stats_get_reply +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Return value, zero means all OK */ + i32 retval; + + /* ICN packets processed */ + u64 pkts_processed; + + /* ICN interests forwarded */ + u64 pkts_interest_count; + + /* ICN data msgs forwarded */ + u64 pkts_data_count; + + /* ICN cached data msg replies */ + u64 pkts_from_cache_count; + + /* ICN no PIT entry drops */ + u64 pkts_no_pit_count; + + /* ICN expired PIT entries */ + u64 pit_expired_count; + + /* ICN expired CS entries */ + u64 cs_expired_count; + + /* ICN LRU CS entries freed */ + u64 cs_lru_count; + + /* ICN msgs dropped due to no packet buffers */ + u64 pkts_drop_no_buf; + + /* ICN Interest messages aggregated in PIT */ + u64 interests_aggregated; + + /* ICN Interest messages retransmitted */ + u64 interests_retx; + + /* ICN Interest messages colliding in hashtb */ + u64 interests_hash_collision; + + /* Number of entries in PIT at the present moment */ + u64 pit_entries_count; + + /* Number of entries in CS at the present moment */ + u64 cs_entries_count; + + /* Number of entries in CS at the present moment */ + u64 cs_entries_ntw_count; +}; + +define hicn_api_face_ip_add +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* IP local address */ + u64 nh_addr[2]; + + /* IPv4 local port number */ + u32 swif; +}; + +define hicn_api_face_ip_add_reply +{ + /* From the request */ + u32 context; + + /* Return value: new Face ID, ~0 means no Face was created */ + u32 faceid; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_face_ip_del +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* A Face ID to be deleted */ + u16 faceid; +}; + +define hicn_api_face_ip_del_reply +{ + /* From the request */ + u32 context; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_face_ip_params_get +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* A Face to be retrieved */ + u16 faceid; +}; + +define hicn_api_face_ip_params_get_reply +{ + /* From the request */ + u32 context; + + /* Return value, zero means all OK */ + i32 retval; + + /* IP local address */ + u64 nh_addr[2]; + + /* VPP interface (index) associated with the face */ + u32 swif; + + /* Face flags */ + u32 flags; +}; + +define hicn_api_route_nhops_add +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Prefix to be added to the FIB */ + u64 prefix[2]; + + /* Length of the prefix */ + u8 len; + + /* A Face ID to the next hop forwarder for the specified prefix */ + u32 face_ids[7]; + + /* Number of face to add */ + u8 n_faces; +}; + +define hicn_api_route_nhops_add_reply +{ + /* From the request */ + u32 context; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_route_del +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Prefix to be added to the FIB */ + u64 prefix[2]; + + /* Length of the prefix */ + u8 len; +}; + +define hicn_api_route_del_reply +{ + /* From the request */ + u32 context; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_route_nhop_del +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Prefix to be added to the FIB */ + u64 prefix[2]; + + /* Length of the prefix */ + u8 len; + + /* Specific next-hop to be removed */ + u16 faceid; +}; + +define hicn_api_route_nhop_del_reply +{ + /* From the request */ + u32 context; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_route_get +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Route prefix */ + u64 prefix[2]; + + /* Prefix len */ + u8 len; +}; + +define hicn_api_route_get_reply +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* List of faces pointing to the next hops */ + u16 faceids[1000]; + + /* Strategy */ + u32 strategy_id; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_strategies_get +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; +}; + +define hicn_api_strategies_get_reply +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Number of available strategies */ + u8 n_strategies; + + /* Strategies */ + u32 strategy_id[256]; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_strategy_get +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Route prefix */ + u32 strategy_id; +}; + +define hicn_api_strategy_get_reply +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Strategy description */ + u8 description[200]; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_punting_add +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Prefix to match */ + u64 prefix[2]; + + /* Subnet */ + u8 len; + + /* Interface id */ + u32 swif; +}; + +define hicn_api_punting_add_reply +{ + /* From the request */ + u32 context; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_punting_del +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u32 context; + + /* Prefix to match */ + u64 prefix[2]; + + /* Subnet */ + u8 len; + + /* Interface id */ + u32 swif; +}; + +define hicn_api_punting_del_reply +{ + /* From the request */ + u32 context; + + /* Return value, zero means all OK */ + i32 retval; +}; + +define hicn_api_register_prod_app +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u64 context; + + /* Prefix to match */ + u64 prefix[2]; + + /* Subnet */ + u8 len; + + /* sw_if id */ + u32 swif; + + /* CS memory reserved -- in number of packets */ + u32 cs_reserved; +}; + +define hicn_api_register_prod_app_reply +{ + /* From the request */ + u64 context; + + /* Return value, zero means all OK */ + i32 retval; + + /* Actual CS memory reserved -- in number of packets */ + u32 cs_reserved; + + /* Prod address (ipv4 or ipv6) */ + u64 prod_addr[2]; + + /* Return value: new Face ID, ~0 means no Face was created */ + u32 faceid; +}; + +define hicn_api_register_cons_app +{ + /* Client identifier, set from api_main.my_client_index */ + u32 client_index; + + /* Arbitrary context, so client can match reply to request */ + u64 context; + + /* swif */ + u32 swif; +}; + +define hicn_api_register_cons_app_reply +{ + /* From the request */ + u64 context; + + /* Return value, zero means all OK */ + i32 retval; + + /* Ip4 address */ + u32 src_addr4; + + /* Ip6 address */ + u64 src_addr6[2]; + + /* Return value: new Face ID, ~0 means no Face was created */ + u32 faceid; +}; + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/hicn.c b/hicn-plugin/src/hicn.c new file mode 100755 index 000000000..a7b04de74 --- /dev/null +++ b/hicn-plugin/src/hicn.c @@ -0,0 +1,253 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/vnet.h> +#include <vnet/plugin/plugin.h> + +#include "hicn.h" +#include "params.h" +#include "infra.h" +#include "strategy_dpo_manager.h" +#include "mgmt.h" +#include "punt.h" +#include "error.h" +#include "faces/app/address_mgr.h" +#include "face_db.h" +#include "faces/udp/face_udp.h" + +hicn_main_t hicn_main; +/* Module vars */ +int hicn_infra_fwdr_initialized = 0; + +/* + * Global time counters we're trying out for opportunistic hashtable + * expiration. + */ +uint16_t hicn_infra_fast_timer; /* Counts at 1 second intervals */ +uint16_t hicn_infra_slow_timer; /* Counts at 1 minute intervals */ + +hicn_face_bucket_t *hicn_face_bucket_pool; + +/* + * Init hicn forwarder with configurable PIT, CS sizes + */ +static int +hicn_infra_fwdr_init (uint32_t shard_pit_size, uint32_t shard_cs_size, + uint32_t cs_reserved) +{ + int ret = 0; + + if (hicn_infra_fwdr_initialized) + { + ret = HICN_ERROR_FWD_ALREADY_ENABLED; + goto done; + } + /* Init per worker limits */ + hicn_infra_pit_size = shard_pit_size; + hicn_infra_cs_size = shard_cs_size; + + /* Init the global time-compression counters */ + hicn_infra_fast_timer = 1; + hicn_infra_slow_timer = 1; + + ret = hicn_pit_create (&hicn_main.pitcs, hicn_infra_pit_size); + hicn_pit_set_lru_max (&hicn_main.pitcs, + hicn_infra_cs_size - + (hicn_infra_cs_size * cs_reserved / 100)); + hicn_pit_set_lru_app_max (&hicn_main.pitcs, + hicn_infra_cs_size * cs_reserved / 100); + +done: + if ((ret == HICN_ERROR_NONE) && !hicn_infra_fwdr_initialized) + { + hicn_infra_fwdr_initialized = 1; + } + return (ret); +} + +/* + * Action function shared between message handler and debug CLI NOTICE: we're + * only 'enabling' now + */ +int +hicn_infra_plugin_enable_disable (int enable_disable, + int pit_size_req, + f64 pit_dflt_lifetime_sec_req, + f64 pit_min_lifetime_sec_req, + f64 pit_max_lifetime_sec_req, + int cs_size_req, int cs_reserved_app) +{ + int ret = 0; + + hicn_main_t *sm = &hicn_main; + uint32_t pit_size, cs_size, cs_reserved; + + /* Notice if we're already enabled... */ + if (sm->is_enabled) + { + ret = HICN_ERROR_FWD_ALREADY_ENABLED; + goto done; + } + /* Set up params and call fwdr_init set up PIT/CS, forwarder nodes */ + + /* Check the range and assign some globals */ + if (pit_min_lifetime_sec_req < 0) + { + sm->pit_lifetime_min_ms = HICN_PARAM_PIT_LIFETIME_DFLT_MIN_MS; + } + else + { + if (pit_min_lifetime_sec_req < HICN_PARAM_PIT_LIFETIME_BOUND_MIN_SEC || + pit_min_lifetime_sec_req > HICN_PARAM_PIT_LIFETIME_BOUND_MAX_SEC) + { + ret = HICN_ERROR_PIT_CONFIG_MINLT_OOB; + goto done; + } + sm->pit_lifetime_min_ms = pit_min_lifetime_sec_req * SEC_MS; + } + + if (pit_max_lifetime_sec_req < 0) + { + sm->pit_lifetime_max_ms = HICN_PARAM_PIT_LIFETIME_DFLT_MAX_MS; + } + else + { + if (pit_max_lifetime_sec_req < HICN_PARAM_PIT_LIFETIME_BOUND_MIN_SEC || + pit_max_lifetime_sec_req > HICN_PARAM_PIT_LIFETIME_BOUND_MAX_SEC) + { + ret = HICN_ERROR_PIT_CONFIG_MAXLT_OOB; + goto done; + } + sm->pit_lifetime_max_ms = pit_max_lifetime_sec_req * SEC_MS; + } + if (sm->pit_lifetime_min_ms > sm->pit_lifetime_max_ms) + { + ret = HICN_ERROR_PIT_CONFIG_MINMAXLT; + goto done; + } + if (pit_dflt_lifetime_sec_req < 0) + { + sm->pit_lifetime_dflt_ms = HICN_PARAM_PIT_LIFETIME_DFLT_DFLT_MS; + } + else + { + sm->pit_lifetime_dflt_ms = pit_dflt_lifetime_sec_req * SEC_MS; + } + if (sm->pit_lifetime_dflt_ms < sm->pit_lifetime_min_ms || + sm->pit_lifetime_dflt_ms > sm->pit_lifetime_max_ms) + { + ret = HICN_ERROR_PIT_CONFIG_DFTLT_OOB; + goto done; + } + if (pit_size_req < 0) + { + pit_size = HICN_PARAM_PIT_ENTRIES_DFLT; + } + else + { + if (pit_size_req < HICN_PARAM_PIT_ENTRIES_MIN || + pit_size_req > HICN_PARAM_PIT_ENTRIES_MAX) + { + ret = HICN_ERROR_PIT_CONFIG_SIZE_OOB; + goto done; + } + pit_size = (uint32_t) pit_size_req; + } + + if (cs_size_req < 0) + { + cs_size = HICN_PARAM_CS_ENTRIES_DFLT; + } + else + { + if (cs_size_req > HICN_PARAM_CS_ENTRIES_MAX) + { + ret = HICN_ERROR_CS_CONFIG_SIZE_OOB; + goto done; + } + cs_size = (uint32_t) cs_size_req; + } + + if (cs_reserved_app < 0) + { + cs_reserved = HICN_PARAM_CS_RESERVED_APP; + } + else + { + if (cs_reserved_app >= 100) + ret = HICN_ERROR_CS_CONFIG_RESERVED_OOB; + cs_reserved = cs_reserved_app; + } + + ret = hicn_infra_fwdr_init (pit_size, cs_size, cs_reserved); + + hicn_face_db_init (pit_size); + + if (ret != HICN_ERROR_NONE) + { + goto done; + } + sm->is_enabled = 1; + + hicn_face_udp_init_internal (); + +done: + + return (ret); +} + +/* + * Init entry-point for the icn plugin + */ +static clib_error_t * +hicn_init (vlib_main_t * vm) +{ + clib_error_t *error = 0; + + hicn_main_t *sm = &hicn_main; + + /* Init other elements in the 'main' struct */ + sm->is_enabled = 0; + + error = hicn_api_plugin_hookup (vm); + + /* Init the hash table */ + hicn_punt_init (vm); + + /* Init the dpo module */ + hicn_dpos_init (); + + /* Init the app manager */ + address_mgr_init (); + + hicn_face_module_init (vm); + + return error; +} + +VLIB_INIT_FUNCTION (hicn_init); + +/* *INDENT-OFF* */ +VLIB_PLUGIN_REGISTER() = +{ + .description = "hICN forwarder" +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/hicn.h b/hicn-plugin/src/hicn.h new file mode 100755 index 000000000..02a3dfa52 --- /dev/null +++ b/hicn-plugin/src/hicn.h @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_H__ +#define __HICN_H__ + +#include <hicn/hicn.h> + +#include <netinet/in.h> +#include <vnet/ip/ip.h> +#include <vnet/tcp/tcp_packet.h> +#include <vnet/ip/ip6_packet.h> +#include <vnet/ip/ip4_packet.h> +#include <vnet/buffer.h> + +/* Helper for avoiding warnings about type-punning */ +#define UNION_CAST(x, destType) \ + (((union {__typeof__(x) a; destType b;})x).b) + +/* + * Update CMakeLists.txt as we have to manually replace the type for + * vppapigen + */ +typedef u8 weight_t; + +#define ISV6(isv6, dov6, dov4) isv6 ? dov6 : dov4 +#define HICN_IS_NAMEHASH_CACHED(b) (((u64)(b->opaque2)[0] != 0) || ((u64)(b->opaque2)[1] != 0)) + +#ifndef VLIB_BUFFER_MIN_CHAIN_SEG_SIZE +#define VLIB_BUFFER_MIN_CHAIN_SEG_SIZE (128) +#endif + +/* The following is stored in the opaque2 field in the vlib_buffer_t */ +typedef struct +{ + /* hash of the name */ + u64 name_hash; + + /* ids to prefetch a PIT/CS entry */ + u32 node_id; + u32 bucket_id; + u8 hash_entry_id; + u8 hash_bucket_flags; + + u8 is_appface; /* 1 the incoming face is an + * application face, 0 otherwise */ + u8 dpo_ctx_id; /* used for data path */ + u8 vft_id; /* " */ + + dpo_id_t face_dpo_id; /* ingress face ,sizeof(iface_dpo_id) + * <= sizeof(u64) */ + + hicn_type_t type; +} hicn_buffer_t; + +STATIC_ASSERT (sizeof (hicn_buffer_t) <= + STRUCT_SIZE_OF (vlib_buffer_t, opaque2), + "hICN buffer opaque2 meta-data too large for vlib_buffer"); + + +always_inline hicn_buffer_t * +hicn_get_buffer (vlib_buffer_t * b0) +{ + return (hicn_buffer_t *) & (b0->opaque2[0]); +} + +#endif /* __HICN_H__ */ + + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/hicn_all_api_h.h b/hicn-plugin/src/hicn_all_api_h.h new file mode 100755 index 000000000..1263ea4a2 --- /dev/null +++ b/hicn-plugin/src/hicn_all_api_h.h @@ -0,0 +1,22 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <hicn/hicn.api.h> + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/hicn_api.c b/hicn-plugin/src/hicn_api.c new file mode 100755 index 000000000..8becde12c --- /dev/null +++ b/hicn-plugin/src/hicn_api.c @@ -0,0 +1,570 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/ip/format.h> +#include <vnet/ip/ip4.h> +#include <vnet/ip/ip6.h> +#include <vlibapi/api.h> +#include <vlibmemory/api.h> + +#include "hicn.h" +#include "faces/ip/face_ip.h" +#include "infra.h" +#include "parser.h" +#include "mgmt.h" +#include "strategy_dpo_manager.h" +#include "strategy_dpo_ctx.h" +#include "strategy.h" +#include "pg.h" +#include "error.h" +#include "punt.h" +#include "faces/app/face_prod.h" +#include "faces/app/face_cons.h" +#include "route.h" + +/* define message IDs */ +#include <hicn/hicn_msg_enum.h> + +/* define generated endian-swappers */ +#define vl_endianfun +#include <hicn/hicn_all_api_h.h> +#undef vl_endianfun + +/* instantiate all the print functions we know about */ +#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) +#define vl_printfun +#include <hicn/hicn_all_api_h.h> +#undef vl_printfun + +/* Get the API version number */ +#define vl_api_version(n, v) static u32 api_version=(v); +#include <hicn/hicn_all_api_h.h> +#undef vl_api_version + +#define REPLY_MSG_ID_BASE sm->msg_id_base +#include <vlibapi/api_helper_macros.h> + +/****** List of message types that this plugin understands ******/ + +#define foreach_hicn_plugin_api_msg \ + _(HICN_API_NODE_PARAMS_SET, hicn_api_node_params_set) \ + _(HICN_API_NODE_PARAMS_GET, hicn_api_node_params_get) \ + _(HICN_API_NODE_STATS_GET, hicn_api_node_stats_get) \ + _(HICN_API_FACE_IP_ADD, hicn_api_face_ip_add) \ + _(HICN_API_FACE_IP_DEL, hicn_api_face_ip_del) \ + _(HICN_API_FACE_IP_PARAMS_GET, hicn_api_face_ip_params_get) \ + _(HICN_API_ROUTE_GET, hicn_api_route_get) \ + _(HICN_API_ROUTE_NHOPS_ADD, hicn_api_route_nhops_add) \ + _(HICN_API_ROUTE_DEL, hicn_api_route_del) \ + _(HICN_API_ROUTE_NHOP_DEL, hicn_api_route_nhop_del) \ + _(HICN_API_STRATEGIES_GET, hicn_api_strategies_get) \ + _(HICN_API_STRATEGY_GET, hicn_api_strategy_get) \ + _(HICN_API_PUNTING_ADD, hicn_api_punting_add) \ + _(HICN_API_PUNTING_DEL, hicn_api_punting_del) \ + _(HICN_API_REGISTER_PROD_APP, hicn_api_register_prod_app) \ + _(HICN_API_REGISTER_CONS_APP, hicn_api_register_cons_app) + + +/****** SUPPORTING FUNCTION DECLARATIONS ******/ + +/* + * Convert a unix return code to a vnet_api return code. Currently stubby: + * should have more cases. + */ +always_inline vnet_api_error_t +hicn_face_api_entry_params_serialize (hicn_face_id_t faceid, + vl_api_hicn_api_face_ip_params_get_reply_t + * reply); + + +/****************** API MESSAGE HANDLERS ******************/ + +/****** NODE ******/ + +static void +vl_api_hicn_api_node_params_set_t_handler (vl_api_hicn_api_node_params_set_t * + mp) +{ + vl_api_hicn_api_node_params_set_reply_t *rmp; + int rv; + + hicn_main_t *sm = &hicn_main; + + int pit_max_size = clib_net_to_host_i32 (mp->pit_max_size); + f64 pit_dflt_lifetime_sec = mp->pit_dflt_lifetime_sec; + f64 pit_min_lifetime_sec = mp->pit_min_lifetime_sec; + f64 pit_max_lifetime_sec = mp->pit_max_lifetime_sec; + int cs_max_size = clib_net_to_host_i32 (mp->cs_max_size); + int cs_reserved_app = clib_net_to_host_i32 (mp->cs_reserved_app); + + cs_reserved_app = cs_reserved_app >= 0 + && cs_reserved_app < 100 ? cs_reserved_app : HICN_PARAM_CS_RESERVED_APP; + + rv = hicn_infra_plugin_enable_disable ((int) (mp->enable_disable), + pit_max_size, + pit_dflt_lifetime_sec, + pit_min_lifetime_sec, + pit_max_lifetime_sec, + cs_max_size, cs_reserved_app); + + REPLY_MACRO (VL_API_HICN_API_NODE_PARAMS_SET_REPLY /* , rmp, mp, rv */ ); +} + +static void +vl_api_hicn_api_node_params_get_t_handler (vl_api_hicn_api_node_params_get_t * + mp) +{ + vl_api_hicn_api_node_params_get_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + + /* *INDENT-OFF* */ + REPLY_MACRO2 (VL_API_HICN_API_NODE_PARAMS_GET_REPLY, ( + { + rmp->is_enabled = sm->is_enabled; + rmp->feature_cs = HICN_FEATURE_CS; + rmp->pit_max_size = clib_host_to_net_u32 (hicn_infra_pit_size); + rmp->pit_dflt_lifetime_sec = ((f64) sm->pit_lifetime_dflt_ms) / SEC_MS; + rmp->pit_min_lifetime_sec = ((f64) sm->pit_lifetime_min_ms) / SEC_MS; + rmp->pit_max_lifetime_sec = ((f64) sm->pit_lifetime_max_ms) / SEC_MS; + rmp->cs_max_size = clib_host_to_net_u32 (hicn_infra_cs_size); + rmp->retval = clib_host_to_net_i32 (rv); + })); + /* *INDENT-ON* */ +} + +static void +vl_api_hicn_api_node_stats_get_t_handler (vl_api_hicn_api_node_stats_get_t * + mp) +{ + vl_api_hicn_api_node_stats_get_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + + /* *INDENT-OFF* */ + REPLY_MACRO2 (VL_API_HICN_API_NODE_STATS_GET_REPLY, ( + { + rv = hicn_mgmt_node_stats_get (rmp); + rmp->retval =clib_host_to_net_i32 (rv); + })); + /* *INDENT-ON* */ +} + + +/****** FACE *******/ + +static void +vl_api_hicn_api_face_ip_add_t_handler (vl_api_hicn_api_face_ip_add_t * mp) +{ + vl_api_hicn_api_face_ip_add_reply_t *rmp; + int rv; + + hicn_main_t *sm = &hicn_main; + + hicn_face_id_t faceid = HICN_FACE_NULL; + ip46_address_t nh_addr; + nh_addr.as_u64[0] = clib_net_to_host_u64 (((u64 *) (&mp->nh_addr))[0]); + nh_addr.as_u64[1] = clib_net_to_host_u64 (((u64 *) (&mp->nh_addr))[1]); + + u32 swif = clib_net_to_host_u32 (mp->swif); + rv = hicn_face_ip_add (&nh_addr, NULL, swif, &faceid); + + /* *INDENT-OFF* */ + REPLY_MACRO2 (VL_API_HICN_API_FACE_IP_ADD_REPLY /* , rmp, mp, rv */ ,( + { + rmp->faceid = clib_host_to_net_u16 ((u16) faceid); + })); + /* *INDENT-ON* */ +} + +static void +vl_api_hicn_api_face_ip_del_t_handler (vl_api_hicn_api_face_ip_del_t * mp) +{ + vl_api_hicn_api_face_ip_del_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + + hicn_face_id_t faceid = clib_net_to_host_u16 (mp->faceid); + rv = hicn_face_del (faceid); + + REPLY_MACRO (VL_API_HICN_API_FACE_IP_DEL_REPLY /* , rmp, mp, rv */ ); + +} + +static void + vl_api_hicn_api_face_ip_params_get_t_handler + (vl_api_hicn_api_face_ip_params_get_t * mp) +{ + vl_api_hicn_api_face_ip_params_get_reply_t *rmp; + int rv = 0; + + hicn_main_t *sm = &hicn_main; + + hicn_face_id_t faceid = clib_net_to_host_u16 (mp->faceid); + + /* *INDENT-OFF* */ + REPLY_MACRO2 (VL_API_HICN_API_FACE_IP_PARAMS_GET_REPLY, ( + { + rv = hicn_face_api_entry_params_serialize(faceid, rmp); + rmp->retval = clib_host_to_net_u32(rv); + })); + /* *INDENT-ON* */ +} + +/****** ROUTE *******/ + +static void +vl_api_hicn_api_route_nhops_add_t_handler (vl_api_hicn_api_route_nhops_add_t + * mp) +{ + vl_api_hicn_api_route_nhops_add_reply_t *rmp; + int rv = HICN_ERROR_NONE; + hicn_face_id_t face_ids[HICN_PARAM_FIB_ENTRY_NHOPS_MAX]; + + hicn_main_t *sm = &hicn_main; + + ip46_address_t prefix; + prefix.as_u64[0] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[0]); + prefix.as_u64[1] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[1]); + + u8 len = mp->len; + u8 n_faces = mp->n_faces; + + for (int i = 0; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX; i++) + { + face_ids[i] = clib_net_to_host_u16 (mp->face_ids[i]); + } + + if ((face_ids == NULL) || (n_faces > HICN_PARAM_FIB_ENTRY_NHOPS_MAX)) + { + rv = VNET_API_ERROR_INVALID_ARGUMENT; + } + if (rv == HICN_ERROR_NONE) + { + rv = hicn_route_add (face_ids, n_faces, &prefix, len); + + if (rv == HICN_ERROR_ROUTE_ALREADY_EXISTS) + { + rv = hicn_route_add_nhops (face_ids, n_faces, &prefix, len); + } + } + REPLY_MACRO (VL_API_HICN_API_ROUTE_NHOPS_ADD_REPLY /* , rmp, mp, rv */ ); +} + + +static void vl_api_hicn_api_route_del_t_handler + (vl_api_hicn_api_route_del_t * mp) +{ + vl_api_hicn_api_route_del_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + + ip46_address_t prefix; + prefix.as_u64[0] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[0]); + prefix.as_u64[1] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[1]); + u8 len = mp->len; + + rv = hicn_route_del (&prefix, len); + + REPLY_MACRO (VL_API_HICN_API_ROUTE_DEL_REPLY /* , rmp, mp, rv */ ); +} + +static void vl_api_hicn_api_route_nhop_del_t_handler + (vl_api_hicn_api_route_nhop_del_t * mp) +{ + vl_api_hicn_api_route_nhop_del_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + + ip46_address_t prefix; + prefix.as_u64[0] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[0]); + prefix.as_u64[1] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[1]); + u8 len = mp->len; + hicn_face_id_t faceid = clib_net_to_host_u32 (mp->faceid); + + + rv = hicn_route_del_nhop (&prefix, len, faceid); + + REPLY_MACRO (VL_API_HICN_API_ROUTE_NHOP_DEL_REPLY /* , rmp, mp, rv */ ); +} + +static void vl_api_hicn_api_route_get_t_handler + (vl_api_hicn_api_route_get_t * mp) +{ + vl_api_hicn_api_route_get_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + + ip46_address_t prefix; + prefix.as_u64[0] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[0]); + prefix.as_u64[1] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[1]); + u8 len = mp->len; + const dpo_id_t *hicn_dpo_id; + const hicn_dpo_vft_t *hicn_dpo_vft; + hicn_dpo_ctx_t *hicn_dpo_ctx; + u32 fib_index; + + rv = hicn_route_get_dpo (&prefix, len, &hicn_dpo_id, &fib_index); + + /* *INDENT-OFF* */ + REPLY_MACRO2 (VL_API_HICN_API_ROUTE_GET_REPLY, ( + { + if (rv == HICN_ERROR_NONE) + { + hicn_dpo_vft = hicn_dpo_get_vft(hicn_dpo_id->dpoi_index); + hicn_dpo_ctx = hicn_dpo_vft->hicn_dpo_get_ctx(hicn_dpo_id->dpoi_index); + for (int i = 0; i < hicn_dpo_ctx->entry_count; i++) + { + if (dpo_id_is_valid(&hicn_dpo_ctx->next_hops[i])) + { + rmp->faceids[i] =((dpo_id_t *) &hicn_dpo_ctx->next_hops[i])->dpoi_index;} + } + rmp->strategy_id = clib_host_to_net_u32(hicn_dpo_get_vft_id(hicn_dpo_id));} + })); + /* *INDENT-ON* */ +} + +static void vl_api_hicn_api_strategies_get_t_handler + (vl_api_hicn_api_strategies_get_t * mp) +{ + vl_api_hicn_api_strategies_get_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + + int n_strategies = hicn_strategy_get_all_available (); + + /* *INDENT-OFF* */ + REPLY_MACRO2 (VL_API_HICN_API_STRATEGIES_GET_REPLY/* , rmp, mp, rv */ ,( + { + int j = 0; + for (u32 i = 0; i < (u32) n_strategies; i++) + { + if (hicn_dpo_strategy_id_is_valid (i) == HICN_ERROR_NONE) + { + rmp->strategy_id[j] = clib_host_to_net_u32 (i); j++;} + } + rmp->n_strategies = n_strategies; + })); + /* *INDENT-ON* */ +} + +static void vl_api_hicn_api_strategy_get_t_handler + (vl_api_hicn_api_strategy_get_t * mp) +{ + vl_api_hicn_api_strategy_get_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + + u32 strategy_id = clib_net_to_host_u32 (mp->strategy_id); + rv = hicn_dpo_strategy_id_is_valid (strategy_id); + + /* *INDENT-OFF* */ + REPLY_MACRO2 (VL_API_HICN_API_STRATEGY_GET_REPLY /* , rmp, mp, rv */ ,( + { + if (rv == HICN_ERROR_NONE) + { + const hicn_dpo_vft_t * hicn_dpo_vft = + hicn_dpo_get_vft (strategy_id); + hicn_dpo_vft->format_hicn_dpo (rmp->description, 0);} + })); + /* *INDENT-ON* */ +} + +/****** PUNTING *******/ + +static void vl_api_hicn_api_punting_add_t_handler + (vl_api_hicn_api_punting_add_t * mp) +{ + vl_api_hicn_api_punting_add_reply_t *rmp; + int rv = HICN_ERROR_NONE; + vlib_main_t *vm = vlib_get_main (); + + hicn_main_t *sm = &hicn_main; + + ip46_address_t prefix; + prefix.as_u64[0] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[0]); + prefix.as_u64[1] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[1]); + u8 subnet_mask = mp->len; + u32 swif = clib_net_to_host_u32 (mp->swif); + + rv = + hicn_punt_interest_data_for_ethernet (vm, &prefix, subnet_mask, swif, 0); + + REPLY_MACRO (VL_API_HICN_API_PUNTING_ADD_REPLY /* , rmp, mp, rv */ ); +} + +static void vl_api_hicn_api_punting_del_t_handler + (vl_api_hicn_api_punting_del_t * mp) +{ + vl_api_hicn_api_punting_del_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + + rv = HICN_ERROR_NONE; + + REPLY_MACRO (VL_API_HICN_API_ROUTE_DEL_REPLY /* , rmp, mp, rv */ ); +} + +/************* APP FACE ****************/ + +static void vl_api_hicn_api_register_prod_app_t_handler + (vl_api_hicn_api_register_prod_app_t * mp) +{ + vl_api_hicn_api_register_prod_app_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + + hicn_prefix_t prefix; + prefix.name.as_u64[0] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[0]); + prefix.name.as_u64[1] = clib_net_to_host_u64 (((u64 *) (&mp->prefix))[1]); + prefix.len = mp->len; + u32 swif = clib_net_to_host_u32 (mp->swif); + u32 cs_reserved = clib_net_to_host_u32 (mp->cs_reserved); + u32 faceid; + + ip46_address_t prod_addr; + ip46_address_reset (&prod_addr); + rv = hicn_face_prod_add (&prefix, swif, &cs_reserved, &prod_addr, &faceid); + + /* *INDENT-OFF* */ + REPLY_MACRO2 (VL_API_HICN_API_REGISTER_PROD_APP_REPLY, ( + { + rmp->prod_addr[0] = prod_addr.as_u64[0]; + rmp->prod_addr[1] = prod_addr.as_u64[1]; + rmp->cs_reserved = clib_net_to_host_u32(cs_reserved); + rmp->faceid = clib_net_to_host_u32(faceid); + })); + /* *INDENT-ON* */ +} + +static void vl_api_hicn_api_register_cons_app_t_handler + (vl_api_hicn_api_register_cons_app_t * mp) +{ + vl_api_hicn_api_register_cons_app_reply_t *rmp; + int rv = HICN_ERROR_NONE; + + hicn_main_t *sm = &hicn_main; + ip4_address_t src_addr4; + ip6_address_t src_addr6; + src_addr4.as_u32 = (u32) 0; + src_addr6.as_u64[0] = (u64) 0; + src_addr6.as_u64[1] = (u64) 1; + + u32 swif = clib_net_to_host_u32 (mp->swif); + u32 faceid; + + rv = hicn_face_cons_add (&src_addr4, &src_addr6, swif, &faceid); + + /* *INDENT-OFF* */ + REPLY_MACRO2 (VL_API_HICN_API_REGISTER_CONS_APP_REPLY, ( + { + rmp->src_addr4 = clib_net_to_host_u32(src_addr4.as_u32); + rmp->src_addr6[0] = clib_net_to_host_u64(src_addr6.as_u64[0]); + rmp->src_addr6[1] = clib_net_to_host_u64(src_addr6.as_u64[1]); + rmp->faceid = clib_net_to_host_u32(faceid); + })); + /* *INDENT-ON* */ +} + +/************************************************************************************/ + +/* Set up the API message handling tables */ +clib_error_t * +hicn_api_plugin_hookup (vlib_main_t * vm) +{ + hicn_main_t *sm = &hicn_main; + + /* Get a correctly-sized block of API message decode slots */ + u8 *name = format (0, "hicn_%08x%c", api_version, 0); + sm->msg_id_base = vl_msg_api_get_msg_ids ((char *) name, + VL_MSG_FIRST_AVAILABLE); + vec_free (name); + +#define _(N, n) \ + vl_msg_api_set_handlers(sm->msg_id_base + VL_API_##N, \ + #n, \ + vl_api_##n##_t_handler, \ + vl_noop_handler, \ + vl_api_##n##_t_endian, \ + vl_api_##n##_t_print, \ + sizeof(vl_api_##n##_t), 1); + foreach_hicn_plugin_api_msg; +#undef _ + + return 0; +} + + + + + + + +/******************* SUPPORTING FUNCTIONS *******************/ + +/* + * Binary serialization for get face configuration API. for the moment + * assuming only ip faces here. To be completed with othet types of faces + */ +vnet_api_error_t +hicn_face_api_entry_params_serialize (hicn_face_id_t faceid, + vl_api_hicn_api_face_ip_params_get_reply_t + * reply) +{ + int rv = HICN_ERROR_NONE; + + if (!reply) + { + rv = VNET_API_ERROR_INVALID_ARGUMENT; + goto done; + } + hicn_face_t *face = hicn_dpoi_get_from_idx (faceid); + + ip_adjacency_t *ip_adj = adj_get (face->shared.adj); + + if (ip_adj != NULL) + { + reply->nh_addr[0] = + clib_host_to_net_u64 (ip_adj->sub_type.nbr.next_hop.as_u64[0]); + reply->nh_addr[1] = + clib_host_to_net_u64 (ip_adj->sub_type.nbr.next_hop.as_u64[1]); + reply->swif = clib_host_to_net_u32 (face->shared.sw_if); + reply->flags = clib_host_to_net_u32 (face->shared.flags); + } + else + rv = HICN_ERROR_FACE_IP_ADJ_NOT_FOUND; + +done: + return (rv); +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/hicn_api.h b/hicn-plugin/src/hicn_api.h new file mode 100755 index 000000000..79b561be4 --- /dev/null +++ b/hicn-plugin/src/hicn_api.h @@ -0,0 +1,32 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_API_H__ +#define __HICN_API_H__ + +#define HICN_STRATEGY_NULL ~0 + +/* define message structures */ +#define vl_typedefs +#include <hicn/hicn_all_api_h.h> +#undef vl_typedefs + +#endif /* // __HICN_API_H___ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/hicn_api_test.c b/hicn-plugin/src/hicn_api_test.c new file mode 100755 index 000000000..9d4519bf4 --- /dev/null +++ b/hicn-plugin/src/hicn_api_test.c @@ -0,0 +1,1046 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <inttypes.h> + +#include <vat/vat.h> +#include <vlibapi/api.h> +#include <vlibmemory/api.h> +#include <vppinfra/error.h> + +#include <vnet/ip/ip4_packet.h> +#include <vnet/ip/ip6_packet.h> +#include <vnet/ip/format.h> + +#define __plugin_msg_base hicn_test_main.msg_id_base +#include <vlibapi/vat_helper_macros.h> + + +#include <hicn/hicn_api.h> +#include "error.h" + +// uword unformat_sw_if_index(unformat_input_t * input, va_list * args); + +/* Declare message IDs */ +#include "hicn_msg_enum.h" + +/* declare message handlers for each api */ + +#define vl_endianfun /* define message structures */ +#include "hicn_all_api_h.h" +#undef vl_endianfun + +/* instantiate all the print functions we know about */ +#define vl_print(handle, ...) +#define vl_printfun +#include "hicn_all_api_h.h" +#undef vl_printfun + +/* Get the API version number. */ +#define vl_api_version(n, v) static u32 api_version=(v); +#include "hicn_all_api_h.h" +#undef vl_api_version + +/* SUPPORTING FUNCTIONS NOT LOADED BY VPP_API_TEST */ +uword +unformat_ip46_address (unformat_input_t * input, va_list * args) +{ + ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); + ip46_type_t type = va_arg (*args, ip46_type_t); + if ((type != IP46_TYPE_IP6) && + unformat (input, "%U", unformat_ip4_address, &ip46->ip4)) + { + ip46_address_mask_ip4 (ip46); + return 1; + } + else if ((type != IP46_TYPE_IP4) && + unformat (input, "%U", unformat_ip6_address, &ip46->ip6)) + { + return 1; + } + return 0; +} + +///////////////////////////////////////////////////// + +#define HICN_FACE_NULL ~0 + +typedef struct +{ + /* API message ID base */ + u16 msg_id_base; + vat_main_t *vat_main; +} hicn_test_main_t; + +hicn_test_main_t hicn_test_main; + +#define foreach_standard_reply_retval_handler \ +_(hicn_api_node_params_set_reply) \ +_(hicn_api_face_ip_del_reply) \ +_(hicn_api_route_nhops_add_reply) \ +_(hicn_api_route_del_reply) \ +_(hicn_api_route_nhop_del_reply) + +#define _(n) \ + static void vl_api_##n##_t_handler \ + (vl_api_##n##_t * mp) \ + { \ + vat_main_t * vam = hicn_test_main.vat_main; \ + i32 retval = ntohl(mp->retval); \ + if (vam->async_mode) { \ + vam->async_errors += (retval < 0); \ + } else { \ + fformat (vam->ofp,"%s\n", get_error_string(retval));\ + vam->retval = retval; \ + vam->result_ready = 1; \ + } \ + } +foreach_standard_reply_retval_handler; +#undef _ + +/* + * Table of message reply handlers, must include boilerplate handlers we just + * generated + */ +#define foreach_vpe_api_reply_msg \ +_(HICN_API_NODE_PARAMS_SET_REPLY, hicn_api_node_params_set_reply) \ +_(HICN_API_NODE_PARAMS_GET_REPLY, hicn_api_node_params_get_reply) \ +_(HICN_API_NODE_STATS_GET_REPLY, hicn_api_node_stats_get_reply) \ +_(HICN_API_FACE_IP_DEL_REPLY, hicn_api_face_ip_del_reply) \ +_(HICN_API_FACE_IP_ADD_REPLY, hicn_api_face_ip_add_reply) \ +_(HICN_API_ROUTE_NHOPS_ADD_REPLY, hicn_api_route_nhops_add_reply) \ +_(HICN_API_FACE_IP_PARAMS_GET_REPLY, hicn_api_face_ip_params_get_reply) \ +_(HICN_API_ROUTE_GET_REPLY, hicn_api_route_get_reply) \ +_(HICN_API_ROUTE_DEL_REPLY, hicn_api_route_del_reply) \ +_(HICN_API_ROUTE_NHOP_DEL_REPLY, hicn_api_route_nhop_del_reply) \ +_(HICN_API_STRATEGIES_GET_REPLY, hicn_api_strategies_get_reply) \ +_(HICN_API_STRATEGY_GET_REPLY, hicn_api_strategy_get_reply) \ +_(HICN_API_REGISTER_PROD_APP_REPLY, hicn_api_register_prod_app_reply) \ +_(HICN_API_REGISTER_CONS_APP_REPLY, hicn_api_register_cons_app_reply) + + +static int +api_hicn_api_node_params_set (vat_main_t * vam) +{ + unformat_input_t *input = vam->input; + int enable_disable = 1; + int pit_size = -1, cs_size = -1; + f64 pit_dflt_lifetime_sec = -1.0f; + f64 pit_min_lifetime_sec = -1.0f, pit_max_lifetime_sec = -1.0f; + int ret; + + vl_api_hicn_api_node_params_set_t *mp; + + /* Parse args required to build the message */ + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "disable")) + { + enable_disable = 0; + } + else if (unformat (input, "PIT size %d", &pit_size)) + {; + } + else if (unformat (input, "CS size %d", &cs_size)) + {; + } + else if (unformat (input, "PIT dfltlife %f", &pit_dflt_lifetime_sec)) + {; + } + else if (unformat (input, "PIT minlife %f", &pit_min_lifetime_sec)) + {; + } + else if (unformat (input, "PIT maxlife %f", &pit_max_lifetime_sec)) + {; + } + else + { + break; + } + } + + /* Construct the API message */ + M (HICN_API_NODE_PARAMS_SET, mp); + mp->enable_disable = enable_disable; + mp->pit_max_size = clib_host_to_net_i32 (pit_size); + mp->cs_max_size = clib_host_to_net_i32 (cs_size); + mp->pit_dflt_lifetime_sec = pit_dflt_lifetime_sec; + mp->pit_min_lifetime_sec = pit_min_lifetime_sec; + mp->pit_max_lifetime_sec = pit_max_lifetime_sec; + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; +} + +static int +api_hicn_api_node_params_get (vat_main_t * vam) +{ + vl_api_hicn_api_node_params_get_t *mp; + int ret; + + //Construct the API message + M (HICN_API_NODE_PARAMS_GET, mp); + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; +} + +static void + vl_api_hicn_api_node_params_get_reply_t_handler + (vl_api_hicn_api_node_params_get_reply_t * mp) +{ + vat_main_t *vam = hicn_test_main.vat_main; + i32 retval = ntohl (mp->retval); + + if (vam->async_mode) + { + vam->async_errors += (retval < 0); + return; + } + vam->retval = retval; + vam->result_ready = 1; + + if (vam->retval < 0) + { + //vpp_api_test infra will also print out string form of error + fformat (vam->ofp, " (API call error: %d)\n", vam->retval); + return; + } + fformat (vam->ofp, + "Enabled %d\n" + " Features: cs:%d\n" + " PIT size %d\n" + " PIT lifetime dflt %.3f, min %.3f, max %.3f\n" + " CS size %d\n", + mp->is_enabled, + mp->feature_cs, + clib_net_to_host_u32 (mp->pit_max_size), + mp->pit_dflt_lifetime_sec, + mp->pit_min_lifetime_sec, + mp->pit_max_lifetime_sec, clib_net_to_host_u32 (mp->cs_max_size)); +} + +static int +api_hicn_api_node_stats_get (vat_main_t * vam) +{ + vl_api_hicn_api_node_stats_get_t *mp; + int ret; + + /* Construct the API message */ + M (HICN_API_NODE_STATS_GET, mp); + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; +} + +static void + vl_api_hicn_api_node_stats_get_reply_t_handler + (vl_api_hicn_api_node_stats_get_reply_t * rmp) +{ + vat_main_t *vam = hicn_test_main.vat_main; + i32 retval = ntohl (rmp->retval); + + if (vam->async_mode) + { + vam->async_errors += (retval < 0); + return; + } + vam->retval = retval; + vam->result_ready = 1; + + if (vam->retval < 0) + { + //vpp_api_test infra will also print out string form of error + fformat (vam->ofp, " (API call error: %d)\n", vam->retval); + return; + } + else + { + fformat (vam->ofp, //compare hicn_cli_show_command_fn block:should match + " PIT entries (now): %d\n" + " CS entries (now): %d\n" + " Forwarding statistics:" + " pkts_processed: %d\n" + " pkts_interest_count: %d\n" + " pkts_data_count: %d\n" + " pkts_nak_count: %d\n" + " pkts_from_cache_count: %d\n" + " pkts_nacked_interests_count: %d\n" + " pkts_nak_hoplimit_count: %d\n" + " pkts_nak_no_route_count: %d\n" + " pkts_no_pit_count: %d\n" + " pit_expired_count: %d\n" + " cs_expired_count: %d\n" + " cs_lru_count: %d\n" + " pkts_drop_no_buf: %d\n" + " interests_aggregated: %d\n" + " interests_retransmitted: %d\n", + clib_net_to_host_u64 (rmp->pit_entries_count), + clib_net_to_host_u64 (rmp->cs_entries_count), + clib_net_to_host_u64 (rmp->pkts_processed), + clib_net_to_host_u64 (rmp->pkts_interest_count), + clib_net_to_host_u64 (rmp->pkts_data_count), + clib_net_to_host_u64 (rmp->pkts_from_cache_count), + clib_net_to_host_u64 (rmp->pkts_no_pit_count), + clib_net_to_host_u64 (rmp->pit_expired_count), + clib_net_to_host_u64 (rmp->cs_expired_count), + clib_net_to_host_u64 (rmp->cs_lru_count), + clib_net_to_host_u64 (rmp->pkts_drop_no_buf), + clib_net_to_host_u64 (rmp->interests_aggregated), + clib_net_to_host_u64 (rmp->interests_retx)); + } +} + +static int +api_hicn_api_face_ip_add (vat_main_t * vam) +{ + unformat_input_t *input = vam->input; + ip46_address_t nh_addr; + vl_api_hicn_api_face_ip_add_t *mp; + int swif, ret; + + /* Parse args required to build the message */ + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "add %d %U", + &swif, unformat_ip46_address, &nh_addr)) + {; + } + else + { + break; + } + } + + /* Check for presence of both addresses */ + if ((nh_addr.as_u64[0] == (u64) 0) && (nh_addr.as_u64[1] == (u64) 0)) + { + clib_warning ("Next hop address not specified"); + return (1); + } + /* Construct the API message */ + M (HICN_API_FACE_IP_ADD, mp); + mp->nh_addr[0] = clib_host_to_net_u64 (nh_addr.as_u64[0]); + mp->nh_addr[1] = clib_host_to_net_u64 (nh_addr.as_u64[0]); + mp->swif = clib_host_to_net_u32 (swif); + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; +} + +static void + vl_api_hicn_api_face_ip_add_reply_t_handler + (vl_api_hicn_api_face_ip_add_reply_t * rmp) +{ + vat_main_t *vam = hicn_test_main.vat_main; + i32 retval = ntohl (rmp->retval); + + if (vam->async_mode) + { + vam->async_errors += (retval < 0); + return; + } + vam->retval = retval; + vam->result_ready = 1; + + if (vam->retval < 0) + { + //vpp_api_test infra will also print out string form of error + fformat (vam->ofp, " (API call error: %d)\n", vam->retval); + return; + } + fformat (vam->ofp, "New Face ID: %d\n", ntohl (rmp->faceid)); +} + +static int +api_hicn_api_face_ip_del (vat_main_t * vam) +{ + unformat_input_t *input = vam->input; + vl_api_hicn_api_face_ip_del_t *mp; + int faceid = 0, ret; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "face %d", &faceid)) + {; + } + else + { + break; + } + } + + //Check for presence of face ID + if (faceid == 0) + { + clib_warning ("Please specify face ID"); + return 1; + } + //Construct the API message + M (HICN_API_FACE_IP_DEL, mp); + mp->faceid = clib_host_to_net_i32 (faceid); + + //send it... + S (mp); + + //Wait for a reply... + W (ret); + + return ret; +} + +static int +api_hicn_api_face_ip_params_get (vat_main_t * vam) +{ + unformat_input_t *input = vam->input; + vl_api_hicn_api_face_ip_params_get_t *mp; + int faceid = 0, ret; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "face %d", &faceid)) + {; + } + else + { + break; + } + } + + //Check for presence of face ID + if (faceid == 0) + { + clib_warning ("Please specify face ID"); + return 1; + } + //Construct the API message + M (HICN_API_FACE_IP_PARAMS_GET, mp); + mp->faceid = clib_host_to_net_i32 (faceid); + + //send it... + S (mp); + + //Wait for a reply... + W (ret); + + return ret; +} + +static void + vl_api_hicn_api_face_ip_params_get_reply_t_handler + (vl_api_hicn_api_face_ip_params_get_reply_t * rmp) +{ + vat_main_t *vam = hicn_test_main.vat_main; + i32 retval = ntohl (rmp->retval); + u8 *sbuf = 0; + u64 nh_addr[2]; + + if (vam->async_mode) + { + vam->async_errors += (retval < 0); + return; + } + vam->retval = retval; + vam->result_ready = 1; + + if (vam->retval < 0) + { + //vpp_api_test infra will also print out string form of error + fformat (vam->ofp, " (API call error: %d)\n", vam->retval); + return; + } + vec_reset_length (sbuf); + nh_addr[0] = clib_net_to_host_u64 (rmp->nh_addr[0]); + nh_addr[1] = clib_net_to_host_u64 (rmp->nh_addr[1]); + sbuf = + format (sbuf, "%U", format_ip46_address, &nh_addr, + 0 /* IP46_ANY_TYPE */ ); + + fformat (vam->ofp, "nh_addr %s swif %d flags %d\n", + sbuf, + clib_net_to_host_u16 (rmp->swif), + clib_net_to_host_i32 (rmp->flags)); +} + +static int +api_hicn_api_route_get (vat_main_t * vam) +{ + unformat_input_t *input = vam->input; + + vl_api_hicn_api_route_get_t *mp; + ip46_address_t prefix; + u8 plen; + int ret; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "prefix %U/%d", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &plen)) + {; + } + else + { + break; + } + } + + /* Check parse */ + if (((prefix.as_u64[0] == 0) && (prefix.as_u64[1] == 0)) || (plen == 0)) + { + clib_warning ("Please specify a valid prefix..."); + return 1; + } + //Construct the API message + M (HICN_API_ROUTE_GET, mp); + mp->prefix[0] = clib_host_to_net_u64 (((u64 *) & prefix)[0]); + mp->prefix[1] = clib_host_to_net_u64 (((u64 *) & prefix)[1]); + mp->len = plen; + + //send it... + S (mp); + + //Wait for a reply... + W (ret); + + return ret; +} + +static void +vl_api_hicn_api_route_get_reply_t_handler (vl_api_hicn_api_route_get_reply_t * + rmp) +{ + vat_main_t *vam = hicn_test_main.vat_main; + i32 retval = ntohl (rmp->retval); + u8 *sbuf = 0; + + if (vam->async_mode) + { + vam->async_errors += (retval < 0); + return; + } + vam->retval = retval; + vam->result_ready = 1; + + if (vam->retval < 0) + { + //vpp_api_test infra will also print out string form of error + fformat (vam->ofp, " (API call error: %d)\n", vam->retval); + return; + } + int i = 0; + u8 null_face = 0; + u32 faceid; + + vec_reset_length (sbuf); + sbuf = format (sbuf, "Faces: \n"); + while (i < 1000 && !null_face) + { + faceid = clib_net_to_host_u32 (rmp->faceids[i]); + if (faceid != HICN_FACE_NULL) + { + sbuf = + format (sbuf, "faceid %d", + clib_net_to_host_u32 (rmp->faceids[i])); + i++; + } + else + { + null_face = 1; + } + } + + fformat (vam->ofp, "%s\n Strategy: %d", + sbuf, clib_net_to_host_u32 (rmp->strategy_id)); +} + +static int +api_hicn_api_route_nhops_add (vat_main_t * vam) +{ + unformat_input_t *input = vam->input; + vl_api_hicn_api_route_nhops_add_t *mp; + + ip46_address_t prefix; + u8 plen; + u32 faceid = 0; + int ret; + + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "add prefix %U/%d", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &plen)) + {; + } + else if (unformat (input, "face %d", &faceid)) + {; + } + else + { + break; + } + } + + /* Check parse */ + if (((prefix.as_u64[0] == 0) && (prefix.as_u64[1] == 0)) || (plen == 0) + || (faceid == 0)) + { + clib_warning ("Please specify prefix and faceid..."); + return 1; + } + /* Construct the API message */ + M (HICN_API_ROUTE_NHOPS_ADD, mp); + mp->prefix[0] = clib_host_to_net_u64 (((u64 *) & prefix)[0]); + mp->prefix[1] = clib_host_to_net_u64 (((u64 *) & prefix)[1]); + mp->len = plen; + + mp->face_ids[0] = clib_host_to_net_u32 (faceid); + mp->n_faces = 1; + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; +} + +static int +api_hicn_api_route_del (vat_main_t * vam) +{ + unformat_input_t *input = vam->input; + vl_api_hicn_api_route_del_t *mp; + + ip46_address_t prefix; + u8 plen; + int ret; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "prefix %U/%d", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &plen)) + {; + } + else + { + break; + } + } + + /* Check parse */ + if (((prefix.as_u64[0] == 0) && (prefix.as_u64[1] == 0)) || (plen == 0)) + { + clib_warning ("Please specify prefix..."); + return 1; + } + /* Construct the API message */ + M (HICN_API_ROUTE_DEL, mp); + mp->prefix[0] = clib_host_to_net_u64 (((u64 *) & prefix)[0]); + mp->prefix[1] = clib_host_to_net_u64 (((u64 *) & prefix)[1]); + mp->len = plen; + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; + +} + +static int +api_hicn_api_route_nhop_del (vat_main_t * vam) +{ + unformat_input_t *input = vam->input; + vl_api_hicn_api_route_nhop_del_t *mp; + + ip46_address_t prefix; + u8 plen; + int faceid = 0, ret; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "del prefix %U/%d", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &plen)) + {; + } + else if (unformat (input, "face %d", &faceid)) + {; + } + else + { + break; + } + } + + /* Check parse */ + if (((prefix.as_u64[0] == 0) && (prefix.as_u64[1] == 0)) || (plen == 0) + || (faceid == HICN_FACE_NULL)) + { + clib_warning ("Please specify prefix and faceid..."); + return 1; + } + /* Construct the API message */ + M (HICN_API_ROUTE_NHOP_DEL, mp); + mp->prefix[0] = clib_host_to_net_u64 (((u64 *) & prefix)[0]); + mp->prefix[1] = clib_host_to_net_u64 (((u64 *) & prefix)[1]); + mp->len = plen; + + mp->faceid = clib_host_to_net_u32 (faceid); + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; +} + +static int +api_hicn_api_strategies_get (vat_main_t * vam) +{ + vl_api_hicn_api_strategies_get_t *mp; + int ret; + + //TODO + /* Construct the API message */ + M (HICN_API_STRATEGIES_GET, mp); + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; +} + +static void + vl_api_hicn_api_strategies_get_reply_t_handler + (vl_api_hicn_api_strategies_get_reply_t * mp) +{ + vat_main_t *vam = hicn_test_main.vat_main; + i32 retval = ntohl (mp->retval); + u8 *sbuf = 0; + + if (vam->async_mode) + { + vam->async_errors += (retval < 0); + return; + } + vam->retval = retval; + vam->result_ready = 1; + + if (vam->retval < 0) + { + //vpp_api_test infra will also print out string form of error + fformat (vam->ofp, " (API call error: %d)\n", vam->retval); + return; + } + int n_strategies = clib_net_to_host_i32 (mp->n_strategies); + + vec_reset_length (sbuf); + sbuf = format (sbuf, "Available strategies:\n"); + + int i; + for (i = 0; i < n_strategies; i++) + { + u32 strategy_id = clib_net_to_host_u32 (mp->strategy_id[i]); + sbuf = format (sbuf, "%d ", strategy_id); + } + fformat (vam->ofp, "%s", sbuf); +} + +static int +api_hicn_api_strategy_get (vat_main_t * vam) +{ + unformat_input_t *input = vam->input; + vl_api_hicn_api_strategy_get_t *mp; + int ret; + + u32 strategy_id = HICN_STRATEGY_NULL; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "strategy %d", strategy_id)) + {; + } + else + { + break; + } + } + + if (strategy_id == HICN_STRATEGY_NULL) + { + clib_warning ("Please specify strategy id..."); + return 1; + } + + /* Construct the API message */ + M (HICN_API_STRATEGY_GET, mp); + mp->strategy_id = clib_host_to_net_u32 (strategy_id); + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; +} + +static void + vl_api_hicn_api_strategy_get_reply_t_handler + (vl_api_hicn_api_strategy_get_reply_t * mp) +{ + vat_main_t *vam = hicn_test_main.vat_main; + i32 retval = ntohl (mp->retval); + + if (vam->async_mode) + { + vam->async_errors += (retval < 0); + return; + } + vam->retval = retval; + vam->result_ready = 1; + + if (vam->retval < 0) + { + //vpp_api_test infra will also print out string form of error + fformat (vam->ofp, " (API call error: %d)\n", vam->retval); + return; + } + fformat (vam->ofp, "%s", mp->description); +} + +static int +api_hicn_api_register_prod_app (vat_main_t * vam) +{ + unformat_input_t *input = vam->input; + vl_api_hicn_api_register_prod_app_t *mp; + ip46_address_t prefix; + int plen; + u32 swif = ~0; + int ret; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "prefix %U/%d", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &plen)) + {; + } + else if (unformat (input, "id %d", &swif)) + {; + } + else + { + break; + } + } + + /* Check parse */ + if (((prefix.as_u64[0] == 0) && (prefix.as_u64[1] == 0)) || (plen == 0)) + { + clib_warning ("Please specify prefix..."); + return 1; + } + /* Construct the API message */ + M (HICN_API_REGISTER_PROD_APP, mp); + mp->prefix[0] = clib_host_to_net_u64 (prefix.as_u64[0]); + mp->prefix[1] = clib_host_to_net_u64 (prefix.as_u64[1]); + mp->len = (u8) plen; + + mp->swif = clib_host_to_net_u32 (swif); + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; +} + +static void + vl_api_hicn_api_register_prod_app_reply_t_handler + (vl_api_hicn_api_register_prod_app_reply_t * mp) +{ + vat_main_t *vam = hicn_test_main.vat_main; + i32 retval = ntohl (mp->retval); + + if (vam->async_mode) + { + vam->async_errors += (retval < 0); + return; + } + vam->retval = retval; + vam->result_ready = 1; + + if (vam->retval < 0) + { + //vpp_api_test infra will also print out string form of error + fformat (vam->ofp, " (API call error: %d)\n", vam->retval); + return; + } +} + +static int +api_hicn_api_register_cons_app (vat_main_t * vam) +{ + vl_api_hicn_api_register_cons_app_t *mp; + int ret; + + /* Construct the API message */ + M (HICN_API_REGISTER_CONS_APP, mp); + + /* send it... */ + S (mp); + + /* Wait for a reply... */ + W (ret); + + return ret; +} + +static void + vl_api_hicn_api_register_cons_app_reply_t_handler + (vl_api_hicn_api_register_cons_app_reply_t * mp) +{ + vat_main_t *vam = hicn_test_main.vat_main; + i32 retval = ntohl (mp->retval); + + if (vam->async_mode) + { + vam->async_errors += (retval < 0); + return; + } + vam->retval = retval; + vam->result_ready = 1; + + if (vam->retval < 0) + { + //vpp_api_test infra will also print out string form of error + fformat (vam->ofp, " (API call error: %d)\n", vam->retval); + return; + } + ip4_address_t src_addr4; + src_addr4.as_u32 = clib_net_to_host_u32 (mp->src_addr4); + ip6_address_t src_addr6; + src_addr6.as_u64[0] = clib_net_to_host_u64 (mp->src_addr6[0]); + src_addr6.as_u64[1] = clib_net_to_host_u64 (mp->src_addr6[1]); + + fformat (vam->ofp, + "ip4 address %U\n" + "ip6 address :%U\n" + "appif id :%d\n", + format_ip4_address, &src_addr4, format_ip6_address, &src_addr6); +} + +/* + * List of messages that the api test plugin sends, and that the data plane + * plugin processes + */ +#define foreach_vpe_api_msg \ +_(hicn_api_node_params_set, "PIT size <sz> CS size <sz>" \ + "PIT minlimit <f> PIT maxlimit <f> [disable] ") \ +_(hicn_api_node_params_get, "") \ +_(hicn_api_node_stats_get, "") \ +_(hicn_api_face_ip_del, "face <faceID>") \ +_(hicn_api_face_ip_add, "add <swif> <address>") \ +_(hicn_api_route_nhops_add, "add prefix <IP4/IP6>/<subnet> face <faceID> weight <weight>") \ +_(hicn_api_face_ip_params_get, "face <faceID>") \ +_(hicn_api_route_get, "prefix <IP4/IP6>/<subnet>") \ +_(hicn_api_route_del, "prefix <IP4/IP6>/<subnet>") \ +_(hicn_api_route_nhop_del, "del prefix <IP4/IP6>/<subnet> face <faceID>") \ +_(hicn_api_strategies_get, "") \ +_(hicn_api_strategy_get, "strategy <id>") \ +_(hicn_api_register_prod_app, "prefix <IP4/IP6>/<subnet> id <appif_id>") \ +_(hicn_api_register_cons_app, "") + +void +hicn_vat_api_hookup (vat_main_t * vam) +{ + hicn_test_main_t *sm = &hicn_test_main; + /* Hook up handlers for replies from the data plane plug-in */ +#define _(N, n) \ + vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \ + #n, \ + vl_api_##n##_t_handler, \ + vl_noop_handler, \ + vl_api_##n##_t_endian, \ + vl_api_##n##_t_print, \ + sizeof(vl_api_##n##_t), 1); + foreach_vpe_api_reply_msg; +#undef _ + + /* API messages we can send */ +#define _(n, h) hash_set_mem (vam->function_by_name, #n, api_##n); + foreach_vpe_api_msg; +#undef _ + + /* Help strings */ +#define _(n, h) hash_set_mem (vam->help_by_name, #n, h); + foreach_vpe_api_msg; +#undef _ +} + +clib_error_t * +vat_plugin_register (vat_main_t * vam) +{ + hicn_test_main_t *sm = &hicn_test_main; + u8 *name; + + sm->vat_main = vam; + + /* Ask the vpp engine for the first assigned message-id */ + name = format (0, "hicn_%08x%c", api_version, 0); + sm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name); + + if (sm->msg_id_base != (u16) ~ 0) + hicn_vat_api_hookup (vam); + + vec_free (name); + + return 0; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/hicn_msg_enum.h b/hicn-plugin/src/hicn_msg_enum.h new file mode 100755 index 000000000..291e6226c --- /dev/null +++ b/hicn-plugin/src/hicn_msg_enum.h @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_MSG_ENUM_H__ +#define __HICN_MSG_ENUM_H__ + +#include <vppinfra/byte_order.h> + +#define vl_msg_id(n, h) n, +typedef enum +{ +#include <hicn/hicn_all_api_h.h> + /* We'll want to know how many messages IDs we need... */ + VL_MSG_FIRST_AVAILABLE, +} vl_msg_id_t; +#undef vl_msg_id + +#endif /* __HICN_MSG_ENUM_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/infra.h b/hicn-plugin/src/infra.h new file mode 100755 index 000000000..a9744fe97 --- /dev/null +++ b/hicn-plugin/src/infra.h @@ -0,0 +1,101 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_INFRA_H__ +#define __HICN_INFRA_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "pcs.h" + +/** + * hICN plugin global state: see also + * - fib and pits + */ +typedef struct hicn_main_s +{ + /* Binary API message ID base */ + u16 msg_id_base; + + /* Have we been enabled */ + u16 is_enabled; + + /* Forwarder PIT/CS */ + hicn_pit_cs_t pitcs; + + /* Global PIT lifetime info */ + /* + * Default PIT entry timeout to use in case an interest does not + * contain a valid interest lifetime + */ + u64 pit_lifetime_dflt_ms; + /* + * Boundarier for the interest lifetime. If outside, + * pit_lifetime_dflt_ms is used in the PIT + */ + u64 pit_lifetime_min_ms; + u64 pit_lifetime_max_ms; + +} hicn_main_t; + +extern hicn_main_t hicn_main; + +extern int hicn_infra_fwdr_initialized; + +/* PIT and CS size */ +u32 hicn_infra_pit_size; +u32 hicn_infra_cs_size; + +/** + * @brief Enable and disable the hicn plugin + * + * Enable the time the hICN plugin and set the forwarder parameters. + * @param enable_disable 1 if to enable, 0 otherwisw (currently only enable is supported) + * @param pit_max_size Max size of the PIT + * @param pit_dflt_lifetime_sec_req Default PIT entry timeout to use in case an interest does not contain a valid interest lifetime + * @param pit_min_lifetime_sec_req Minimum timeout allowed for a PIT entry lifetime + * @param pit_max_lifetime_sec_req Maximum timeout allowed for a PIT entry lifetime + * @param cs_max_size CS size. Must be <= than pit_max_size + * @param cs_reserved_app Amount of CS reserved for application faces + */ +int +hicn_infra_plugin_enable_disable (int enable_disable, + int pit_max_size, + f64 pit_dflt_lifetime_sec_req, + f64 pit_min_lifetime_sec_req, + f64 pit_max_lifetime_sec_req, + int cs_max_size, int cs_reserved_app); + + +/* vlib nodes that compose the hICN forwarder */ +extern vlib_node_registration_t hicn_interest_pcslookup_node; +extern vlib_node_registration_t hicn_data_pcslookup_node; +extern vlib_node_registration_t hicn_data_fwd_node; +extern vlib_node_registration_t hicn_data_store_node; +extern vlib_node_registration_t hicn_interest_hitpit_node; +extern vlib_node_registration_t hicn_interest_hitcs_node; +extern vlib_node_registration_t hicn_pg_interest_node; +extern vlib_node_registration_t hicn_pg_data_node; +extern vlib_node_registration_t hicn_pg_server_node; + + +#endif /* // __HICN_INFRA_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/interest_hitcs.h b/hicn-plugin/src/interest_hitcs.h new file mode 100755 index 000000000..82b0ace54 --- /dev/null +++ b/hicn-plugin/src/interest_hitcs.h @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_INTEREST_HITCS_H__ +#define __HICN_INTEREST_HITCS_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "pcs.h" + +/* + * Node context data; we think this is per-thread/instance + */ +typedef struct hicn_interest_hitcs_runtime_s +{ + int id; + hicn_pit_cs_t *pitcs; +} hicn_interest_hitcs_runtime_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_interest_hitcs_trace_t; + +typedef enum +{ + HICN_INTEREST_HITCS_NEXT_V4_LOOKUP, + HICN_INTEREST_HITCS_NEXT_V6_LOOKUP, + HICN_INTEREST_HITCS_NEXT_ERROR_DROP, + HICN_INTEREST_HITCS_N_NEXT, +} hicn_interest_hitcs_next_t; + +#endif /* // __HICN_INTEREST_HITCS_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/interest_hitcs_node.c b/hicn-plugin/src/interest_hitcs_node.c new file mode 100755 index 000000000..f9c8c4898 --- /dev/null +++ b/hicn-plugin/src/interest_hitcs_node.c @@ -0,0 +1,300 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/ip/ip6_packet.h> +#include <vppinfra/string.h> + +#include "interest_hitcs.h" +#include "mgmt.h" +#include "parser.h" +#include "data_fwd.h" +#include "infra.h" +#include "state.h" +#include "error.h" + +/* packet trace format function */ +static u8 *hicn_interest_hitcs_format_trace (u8 * s, va_list * args); + + +/* Stats string values */ +static char *hicn_interest_hitcs_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +vlib_node_registration_t hicn_interest_hitcs_node; + +always_inline void drop_packet (u32 * next0); + +always_inline void +clone_from_cs (vlib_main_t * vm, u32 * bi0_cs, vlib_buffer_t * dest) +{ + /* Retrieve the buffer to clone */ + vlib_buffer_t *cs_buf = vlib_get_buffer (vm, *bi0_cs); + + if (cs_buf->current_data >= VLIB_BUFFER_MIN_CHAIN_SEG_SIZE + && ((i16) cs_buf->current_length) < (i16) 0) + { + vlib_buffer_advance (cs_buf, + -(((i16) cs_buf->current_length) + + VLIB_BUFFER_MIN_CHAIN_SEG_SIZE)); + + clib_memcpy (vlib_buffer_get_current (dest), + vlib_buffer_get_current (cs_buf), cs_buf->current_length); + clib_memcpy (dest->opaque2, cs_buf->opaque2, sizeof (cs_buf->opaque2)); + dest->current_data = cs_buf->current_data; + dest->current_length = cs_buf->current_length; + dest->total_length_not_including_first_buffer = 0; + cs_buf->current_data += VLIB_BUFFER_MIN_CHAIN_SEG_SIZE; + cs_buf->current_length -= VLIB_BUFFER_MIN_CHAIN_SEG_SIZE; + } + else + { + vlib_buffer_advance (cs_buf, -VLIB_BUFFER_MIN_CHAIN_SEG_SIZE); + + if (PREDICT_FALSE (cs_buf->n_add_refs == 255)) + { + vlib_buffer_t *cs_buf2 = vlib_buffer_copy (vm, cs_buf); + vlib_buffer_advance (cs_buf, VLIB_BUFFER_MIN_CHAIN_SEG_SIZE); + cs_buf = cs_buf2; + } + + clib_memcpy (vlib_buffer_get_current (dest), + vlib_buffer_get_current (cs_buf), + VLIB_BUFFER_MIN_CHAIN_SEG_SIZE); + dest->current_length = VLIB_BUFFER_MIN_CHAIN_SEG_SIZE; + vlib_buffer_advance (cs_buf, VLIB_BUFFER_MIN_CHAIN_SEG_SIZE); + vlib_buffer_attach_clone (vm, dest, cs_buf); + } +} + +/* + * ICN forwarder node for interests: handling of Interests delivered based on + * ACL. - 1 packet at a time - ipv4/tcp ipv6/tcp + */ +static uword +hicn_interest_hitcs_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next; + hicn_interest_hitcs_next_t next_index; + hicn_interest_hitcs_runtime_t *rt; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + f64 tnow; + int ret; + + rt = vlib_node_get_runtime_data (vm, hicn_interest_hitcs_node.index); + + if (PREDICT_FALSE (rt->pitcs == NULL)) + { + rt->pitcs = &hicn_main.pitcs; + } + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + /* Capture time in vpp terms */ + tnow = vlib_time_now (vm); + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + while (n_left_from > 0 && n_left_to_next > 0) + { + vlib_buffer_t *b0; + u8 isv6; + u8 *nameptr; + u16 namelen; + u32 bi0; + u32 next0 = HICN_INTEREST_HITCS_NEXT_ERROR_DROP; + hicn_name_t name; + hicn_header_t *hicn0; + hicn_buffer_t *hicnb0; + hicn_hash_node_t *node0; + hicn_pcs_entry_t *pitp; + hicn_hash_entry_t *hash_entry0; + const hicn_strategy_vft_t *strategy_vft0; + const hicn_dpo_vft_t *dpo_vft0; + u8 dpo_ctx_id0; + + /* Prefetch for next iteration. */ + if (n_left_from > 1) + { + vlib_buffer_t *b1; + b1 = vlib_get_buffer (vm, from[1]); + CLIB_PREFETCH (b1, 2 * CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, STORE); + } + + /* Dequeue a packet buffer */ + bi0 = from[0]; + from += 1; + n_left_from -= 1; + to_next[0] = bi0; + to_next += 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + + /* Get hicn buffer and state */ + hicnb0 = hicn_get_buffer (b0); + hicn_get_internal_state (hicnb0, rt->pitcs, &node0, &strategy_vft0, + &dpo_vft0, &dpo_ctx_id0, &hash_entry0); + + ret = hicn_interest_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); + nameptr = (u8 *) (&name); + pitp = hicn_pit_get_data (node0); + + dpo_id_t hicn_dpo_id0 = + { dpo_vft0->hicn_dpo_get_type (), 0, 0, dpo_ctx_id0 }; + + if (PREDICT_FALSE + (ret != HICN_ERROR_NONE || + !hicn_node_compare (nameptr, namelen, node0))) + { + /* Remove lock from the entry */ + hicn_pcs_remove_lock (rt->pitcs, &pitp, &node0, vm, hash_entry0, + dpo_vft0, &hicn_dpo_id0); + drop_packet (&next0); + goto end_processing; + } + if ((tnow > pitp->shared.expire_time)) + { + /* Delete and clean up expired CS entry */ + hicn_pcs_delete (rt->pitcs, &pitp, &node0, vm, hash_entry0, + dpo_vft0, &hicn_dpo_id0); + stats.cs_expired_count++; + /* Forward interest to the strategy node */ + next0 = + isv6 ? HICN_INTEREST_HITCS_NEXT_V6_LOOKUP : + HICN_INTEREST_HITCS_NEXT_V4_LOOKUP; + } + else + { + if (PREDICT_TRUE + (!(hash_entry0->he_flags & HICN_HASH_ENTRY_FLAG_DELETED))) + hicn_pcs_cs_update (vm, rt->pitcs, pitp, node0); + + /* + * Retrieve the incoming iface and forward + * the data through it + */ + ASSERT (hicnb0->face_dpo_id.dpoi_index < + HICN_PARAM_PIT_ENTRY_PHOPS_MAX); + next0 = hicnb0->face_dpo_id.dpoi_next_node; + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = + hicnb0->face_dpo_id.dpoi_index; + + clone_from_cs (vm, &pitp->u.cs.cs_pkt_buf, b0); + + stats.pkts_from_cache_count++; + stats.pkts_data_count++; + /* Remove lock from the entry */ + hicn_pcs_remove_lock (rt->pitcs, &pitp, &node0, vm, hash_entry0, + dpo_vft0, &hicn_dpo_id0); + } + + end_processing: + + /* Maybe trace */ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_interest_hitcs_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_INTEREST; + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + t->next_index = next0; + } + /* Incr packet counter */ + stats.pkts_processed += 1; + + /* + * Verify speculative enqueue, maybe switch current + * next frame + */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + u32 pit_int_count = hicn_pit_get_int_count (rt->pitcs); + + vlib_node_increment_counter (vm, hicn_interest_hitcs_node.index, + HICNFWD_ERROR_CACHED, + stats.pkts_from_cache_count); + + vlib_node_increment_counter (vm, hicn_interest_hitcs_node.index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + update_node_counter (vm, hicn_interest_hitcs_node.index, + HICNFWD_ERROR_INT_COUNT, pit_int_count); + + return (frame->n_vectors); +} + +always_inline void +drop_packet (u32 * next0) +{ + *next0 = HICN_INTEREST_HITCS_NEXT_ERROR_DROP; +} + +/* packet trace format function */ +static u8 * +hicn_interest_hitcs_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_interest_hitcs_trace_t *t = + va_arg (*args, hicn_interest_hitcs_trace_t *); + + s = format (s, "INTEREST-HITCS: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_interest_hitcs_node) = +{ + .function = hicn_interest_hitcs_node_fn, + .name = "hicn-interest-hitcs", + .vector_size = sizeof(u32), + .runtime_data_bytes = sizeof(hicn_interest_hitcs_runtime_t), + .format_trace = hicn_interest_hitcs_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_interest_hitcs_error_strings), + .error_strings = hicn_interest_hitcs_error_strings, + .n_next_nodes = HICN_INTEREST_HITCS_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_INTEREST_HITCS_NEXT_V4_LOOKUP] = "ip4-lookup", + [HICN_INTEREST_HITCS_NEXT_V6_LOOKUP] = "ip6-lookup", + [HICN_INTEREST_HITCS_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/interest_hitpit.h b/hicn-plugin/src/interest_hitpit.h new file mode 100755 index 000000000..28427d342 --- /dev/null +++ b/hicn-plugin/src/interest_hitpit.h @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_INTEREST_HITPIT_H__ +#define __HICN_INTEREST_HITPIT_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "pcs.h" + +/* + * Node context data; we think this is per-thread/instance + */ +typedef struct hicn_interest_hitpit_runtime_s +{ + int id; + hicn_pit_cs_t *pitcs; +} hicn_interest_hitpit_runtime_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_interest_hitpit_trace_t; + +typedef enum +{ + HICN_INTEREST_HITPIT_NEXT_INTEREST_HITCS, + HICN_INTEREST_HITPIT_NEXT_IP4_LOOKUP, + HICN_INTEREST_HITPIT_NEXT_IP6_LOOKUP, + HICN_INTEREST_HITPIT_NEXT_ERROR_DROP, + HICN_INTEREST_HITPIT_N_NEXT, +} hicn_interest_hitpit_next_t; + +#endif /* // __HICN_INTEREST_HITPIT_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/interest_hitpit_node.c b/hicn-plugin/src/interest_hitpit_node.c new file mode 100755 index 000000000..21ba97db3 --- /dev/null +++ b/hicn-plugin/src/interest_hitpit_node.c @@ -0,0 +1,313 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/ip/ip6_packet.h> + +#include "interest_hitpit.h" +#include "mgmt.h" +#include "parser.h" +#include "data_fwd.h" +#include "infra.h" +#include "strategy.h" +#include "strategy_dpo_ctx.h" +#include "strategy_dpo_manager.h" +#include "state.h" +#include "error.h" +#include "face_db.h" + +/* packet trace format function */ +static u8 *hicn_interest_hitpit_format_trace (u8 * s, va_list * args); + +/* Stats string values */ +static char *hicn_interest_hitpit_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +vlib_node_registration_t hicn_interest_hitpit_node; + +always_inline void drop_packet (u32 * next0); + +/* + * hICN forwarder node for interests hitting the PIT + */ +static uword +hicn_interest_hitpit_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next; + hicn_interest_hitpit_next_t next_index; + hicn_interest_hitpit_runtime_t *rt; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + f64 tnow; + + rt = vlib_node_get_runtime_data (vm, hicn_interest_hitpit_node.index); + + if (PREDICT_FALSE (rt->pitcs == NULL)) + { + rt->pitcs = &hicn_main.pitcs; + } + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + /* Capture time in vpp terms */ + tnow = vlib_time_now (vm); + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + while (n_left_from > 0 && n_left_to_next > 0) + { + vlib_buffer_t *b0; + u8 isv6; + u8 *nameptr; + u16 namelen; + u32 bi0; + u32 next0 = HICN_INTEREST_HITPIT_NEXT_ERROR_DROP; + hicn_name_t name; + hicn_header_t *hicn0; + hicn_hash_node_t *node0; + const hicn_strategy_vft_t *strategy_vft0; + const hicn_dpo_vft_t *dpo_vft0; + hicn_pcs_entry_t *pitp; + u8 dpo_ctx_id0; + u8 found = 0; + int nh_idx; + dpo_id_t *outface; + hicn_hash_entry_t *hash_entry0; + hicn_buffer_t *hicnb0; + int ret; + + /* Prefetch for next iteration. */ + if (n_left_from > 1) + { + vlib_buffer_t *b1; + b1 = vlib_get_buffer (vm, from[1]); + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, STORE); + } + + /* Dequeue a packet buffer */ + bi0 = from[0]; + from += 1; + n_left_from -= 1; + to_next[0] = bi0; + to_next += 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + + /* Get hicn buffer and state */ + hicnb0 = hicn_get_buffer (b0); + hicn_get_internal_state (hicnb0, rt->pitcs, &node0, &strategy_vft0, + &dpo_vft0, &dpo_ctx_id0, &hash_entry0); + + + ret = hicn_interest_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); + nameptr = (u8 *) (&name); + pitp = hicn_pit_get_data (node0); + dpo_id_t hicn_dpo_id0 = + { dpo_vft0->hicn_dpo_get_type (), 0, 0, dpo_ctx_id0 }; + + /* + * Check if the hit is instead a collision in the + * hash table. Unlikely to happen. + */ + if (PREDICT_FALSE + (ret != HICN_ERROR_NONE + || !hicn_node_compare (nameptr, namelen, node0))) + { + stats.interests_hash_collision++; + /* Remove lock from the entry */ + hicn_pcs_remove_lock (rt->pitcs, &pitp, &node0, vm, hash_entry0, + dpo_vft0, &hicn_dpo_id0); + drop_packet (&next0); + + goto end_processing; + } + /* + * If the entry is expired, remove it no matter of + * the possible cases. + */ + if (tnow > pitp->shared.expire_time) + { + strategy_vft0->hicn_on_interest_timeout (dpo_ctx_id0); + hicn_pcs_delete (rt->pitcs, &pitp, &node0, vm, hash_entry0, + dpo_vft0, &hicn_dpo_id0); + stats.pit_expired_count++; + next0 = + isv6 ? HICN_INTEREST_HITPIT_NEXT_IP6_LOOKUP : + HICN_INTEREST_HITPIT_NEXT_IP4_LOOKUP; + } + else + { + if ((hash_entry0->he_flags & HICN_HASH_ENTRY_FLAG_CS_ENTRY)) + { + next0 = HICN_INTEREST_HITPIT_NEXT_INTEREST_HITCS; + } + else + { + /* + * Distinguish between aggregation or + * retransmission + */ + + found = + hicn_face_search (&(hicnb0->face_dpo_id), + &(pitp->u.pit.faces)); + + if (found) + { + /* + * Remove lock on the dpo + * stored in the vlib_buffer + */ + dpo_unlock (&hicnb0->face_dpo_id); + strategy_vft0->hicn_select_next_hop (dpo_ctx_id0, + &nh_idx, &outface); + /* Retransmission */ + /* + * Prepare the packet for the + * forwarding + */ + next0 = outface->dpoi_next_node; + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = + outface->dpoi_index; + + /* + * Update the egress face in + * the PIT + */ + pitp->u.pit.pe_txnh = nh_idx; + stats.interests_retx++; + } + else + { + hicn_face_db_add_face_dpo (&hicnb0->face_dpo_id, + &pitp->u.pit.faces); + + /* Aggregation */ + drop_packet (&next0); + stats.interests_aggregated++; + } + /* Remove lock from the entry */ + hicn_pcs_remove_lock (rt->pitcs, &pitp, &node0, vm, + hash_entry0, dpo_vft0, &hicn_dpo_id0); + + } + } + end_processing: + + /* Maybe trace */ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_interest_hitpit_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_INTEREST; + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + t->next_index = next0; + } + /* Incr packet counter */ + stats.pkts_processed += 1; + + /* + * Verify speculative enqueue, maybe switch current + * next frame + */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + u32 pit_int_count = hicn_pit_get_int_count (rt->pitcs); + + + vlib_node_increment_counter (vm, hicn_interest_hitpit_node.index, + HICNFWD_ERROR_PROCESSED, stats.pkts_processed); + vlib_node_increment_counter (vm, hicn_interest_hitpit_node.index, + HICNFWD_ERROR_INTEREST_AGG, + stats.interests_aggregated); + vlib_node_increment_counter (vm, hicn_interest_hitpit_node.index, + HICNFWD_ERROR_INT_RETRANS, + stats.interests_retx); + vlib_node_increment_counter (vm, hicn_interest_hitpit_node.index, + HICNFWD_ERROR_PIT_EXPIRED, + stats.pit_expired_count); + vlib_node_increment_counter (vm, hicn_interest_hitpit_node.index, + HICNFWD_ERROR_HASH_COLL_HASHTB_COUNT, + stats.interests_hash_collision); + + update_node_counter (vm, hicn_interest_hitpit_node.index, + HICNFWD_ERROR_INT_COUNT, pit_int_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_interest_hitpit_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_interest_hitpit_trace_t *t = + va_arg (*args, hicn_interest_hitpit_trace_t *); + + s = format (s, "INTEREST-HITPIT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +void +drop_packet (u32 * next0) +{ + *next0 = HICN_INTEREST_HITPIT_NEXT_ERROR_DROP; +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_interest_hitpit_node) = +{ + .function = hicn_interest_hitpit_node_fn, + .name = "hicn-interest-hitpit", + .vector_size = sizeof(u32), + .runtime_data_bytes = sizeof(hicn_interest_hitpit_runtime_t), + .format_trace = hicn_interest_hitpit_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_interest_hitpit_error_strings), + .error_strings = hicn_interest_hitpit_error_strings, + .n_next_nodes = HICN_INTEREST_HITPIT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_INTEREST_HITPIT_NEXT_INTEREST_HITCS] = "hicn-interest-hitcs", + [HICN_INTEREST_HITPIT_NEXT_IP4_LOOKUP] = "ip4-lookup", + [HICN_INTEREST_HITPIT_NEXT_IP6_LOOKUP] = "ip6-lookup", + [HICN_INTEREST_HITPIT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/interest_pcslookup.h b/hicn-plugin/src/interest_pcslookup.h new file mode 100755 index 000000000..e27673a9e --- /dev/null +++ b/hicn-plugin/src/interest_pcslookup.h @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_INTEREST_PCSLOOKUP_H__ +#define __HICN_INTEREST_PCSLOOKUP_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "pcs.h" + +/* + * Node context data; we think this is per-thread/instance + */ +typedef struct hicn_interest_pcslookup_runtime_s +{ + int id; + hicn_pit_cs_t *pitcs; +} hicn_interest_pcslookup_runtime_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_interest_pcslookup_trace_t; + +typedef enum +{ + HICN_INTEREST_PCSLOOKUP_NEXT_V4_LOOKUP, + HICN_INTEREST_PCSLOOKUP_NEXT_V6_LOOKUP, + HICN_INTEREST_PCSLOOKUP_NEXT_INTEREST_HITPIT, + HICN_INTEREST_PCSLOOKUP_NEXT_INTEREST_HITCS, + HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP, + HICN_INTEREST_PCSLOOKUP_N_NEXT, +} hicn_interest_pcslookup_next_t; + +#endif /* // __HICN_INTEREST_PCSLOOKUP_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/interest_pcslookup_node.c b/hicn-plugin/src/interest_pcslookup_node.c new file mode 100755 index 000000000..40d62510b --- /dev/null +++ b/hicn-plugin/src/interest_pcslookup_node.c @@ -0,0 +1,240 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/ip/ip6_packet.h> + +#include "interest_pcslookup.h" +#include "mgmt.h" +#include "parser.h" +#include "infra.h" +#include "strategy_dpo_manager.h" +#include "error.h" +#include "state.h" + +/** + * @FILE This node performs a lookup in the PIT and CS for a received interest packet. + * + * This node passes the packet to the interest-hitpit and interest-hitcs nodes + * when there is a hit in the pit or content store, respectively. + */ + +/* Functions declarations */ + +/* packet trace format function */ +static u8 *hicn_interest_pcslookup_format_trace (u8 * s, va_list * args); + + +/* Stats string values */ +static char *hicn_interest_pcslookup_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +vlib_node_registration_t hicn_interest_pcslookup_node; + +/* + * ICN forwarder node for interests: handling of Interests delivered based on + * ACL. - 1 packet at a time - ipv4/tcp ipv6/tcp + */ +static uword +hicn_interest_pcslookup_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next; + hicn_interest_pcslookup_next_t next_index; + hicn_interest_pcslookup_runtime_t *rt; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + int ret; + + rt = vlib_node_get_runtime_data (vm, hicn_interest_pcslookup_node.index); + + if (PREDICT_FALSE (rt->pitcs == NULL)) + { + rt->pitcs = &hicn_main.pitcs; + } + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + while (n_left_from > 0 && n_left_to_next > 0) + { + vlib_buffer_t *b0; + u8 isv6; + u8 *nameptr; + u16 namelen; + u32 bi0; + u32 next0 = HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP; + u64 name_hash = 0; + hicn_name_t name; + hicn_header_t *hicn0; + u32 node_id0 = 0; + u8 dpo_ctx_id0 = 0; + u8 vft_id0 = 0; + u8 is_cs0 = 0; + u8 hash_entry_id = 0; + u8 bucket_is_overflown = 0; + u32 bucket_id = ~0; + + /* Prefetch for next iteration. */ + if (n_left_from > 1) + { + vlib_buffer_t *b1; + b1 = vlib_get_buffer (vm, from[1]); + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, LOAD); + } + /* Dequeue a packet buffer */ + bi0 = from[0]; + from += 1; + n_left_from -= 1; + to_next[0] = bi0; + to_next += 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + ret = hicn_interest_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); + + if (PREDICT_TRUE (ret == HICN_ERROR_NONE)) + { + next0 = + isv6 ? HICN_INTEREST_PCSLOOKUP_NEXT_V6_LOOKUP : + HICN_INTEREST_PCSLOOKUP_NEXT_V4_LOOKUP; + } + nameptr = (u8 *) (&name); + stats.pkts_processed++; + + if (PREDICT_FALSE (ret != HICN_ERROR_NONE || + hicn_hashtb_fullhash (nameptr, namelen, + &name_hash) != + HICN_ERROR_NONE)) + { + next0 = HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP; + } + else + { + if (hicn_hashtb_lookup_node (rt->pitcs->pcs_table, nameptr, + namelen, name_hash, + 0 /* is_data */ , &node_id0, + &dpo_ctx_id0, &vft_id0, &is_cs0, + &hash_entry_id, &bucket_id, + &bucket_is_overflown) == + HICN_ERROR_NONE) + { + next0 = + HICN_INTEREST_PCSLOOKUP_NEXT_INTEREST_HITPIT + is_cs0; + } + stats.pkts_interest_count++; + } + + hicn_store_internal_state (b0, name_hash, node_id0, dpo_ctx_id0, + vft_id0, hash_entry_id, bucket_id, + bucket_is_overflown); + + /* Maybe trace */ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_interest_pcslookup_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_INTEREST; + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + t->next_index = next0; + } + /* + * Verify speculative enqueue, maybe switch current + * next frame + */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + u32 pit_int_count = hicn_pit_get_int_count (rt->pitcs); + u32 pit_cs_count = hicn_pit_get_cs_count (rt->pitcs); + u32 pcs_ntw_count = hicn_pcs_get_ntw_count (rt->pitcs); + + + vlib_node_increment_counter (vm, hicn_interest_pcslookup_node.index, + HICNFWD_ERROR_PROCESSED, stats.pkts_processed); + + vlib_node_increment_counter (vm, hicn_interest_pcslookup_node.index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + update_node_counter (vm, hicn_interest_pcslookup_node.index, + HICNFWD_ERROR_INT_COUNT, pit_int_count); + + update_node_counter (vm, hicn_interest_pcslookup_node.index, + HICNFWD_ERROR_CS_COUNT, pit_cs_count); + + update_node_counter (vm, hicn_interest_pcslookup_node.index, + HICNFWD_ERROR_CS_NTW_COUNT, pcs_ntw_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_interest_pcslookup_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_interest_pcslookup_trace_t *t = + va_arg (*args, hicn_interest_pcslookup_trace_t *); + + s = format (s, "INTEREST_PCSLOOKUP: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_interest_pcslookup_node) = +{ + .function = hicn_interest_pcslookup_node_fn, + .name = "hicn-interest-pcslookup", + .vector_size = sizeof(u32), + .runtime_data_bytes = sizeof(hicn_interest_pcslookup_runtime_t), + .format_trace = hicn_interest_pcslookup_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_interest_pcslookup_error_strings), + .error_strings = hicn_interest_pcslookup_error_strings, + .n_next_nodes = HICN_INTEREST_PCSLOOKUP_N_NEXT, + .next_nodes = + { + [HICN_INTEREST_PCSLOOKUP_NEXT_V4_LOOKUP] = "ip4-lookup", + [HICN_INTEREST_PCSLOOKUP_NEXT_V6_LOOKUP] = "ip6-lookup", + [HICN_INTEREST_PCSLOOKUP_NEXT_INTEREST_HITPIT] = "hicn-interest-hitpit", + [HICN_INTEREST_PCSLOOKUP_NEXT_INTEREST_HITCS] = "hicn-interest-hitcs", + [HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/mapme.h b/hicn-plugin/src/mapme.h new file mode 100755 index 000000000..e0786eff8 --- /dev/null +++ b/hicn-plugin/src/mapme.h @@ -0,0 +1,307 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_MAPME__ +#define __HICN_MAPME__ + +#include <vnet/dpo/load_balance.h> +#include <vnet/buffer.h> +#include <hicn/hicn.h> +#include <hicn/mapme.h> + +#include "hicn.h" +#include "strategy_dpo_ctx.h" +#include "strategy_dpo_manager.h" // dpo_is_hicn + +#define HICN_MAPME_ALLOW_LOCATORS 1 + +//#define HICN_MAPME_NOTIFICATIONS 1 + +#define NOT_A_NOTIFICATION false +#define TIMER_NO_REPEAT false + +#define INVALID_SEQ 0 +#define INIT_SEQ 1 + +typedef struct hicn_mapme_conf_s +{ + hicn_mapme_conf_t conf; + bool remove_dpo; // FIXME used ? + + vlib_main_t *vm; + vlib_log_class_t log_class; +} hicn_mapme_main_t; + +#define foreach_hicn_mapme_event \ + _(FACE_ADD) \ + _(FACE_DEL) \ + _(FACE_APP_ADD) \ + _(FACE_APP_DEL) \ + _(FACE_NH_SET) \ + _(FACE_NH_ADD) \ + _(FACE_PH_ADD) \ + _(FACE_PH_DEL) + +typedef enum +{ +#define _(a) HICN_MAPME_EVENT_##a, + foreach_hicn_mapme_event +#undef _ +} hicn_mapme_event_t; + +typedef hicn_dpo_ctx_t hicn_mapme_tfib_t; + +/* + * Ideally we might need to care about alignment, but this struct is only + * used for casting hicn_dpo_ctx_t. + * + * See otherwise vnet/dpo/dpo.h + */ + +STATIC_ASSERT (sizeof (hicn_mapme_tfib_t) <= sizeof (hicn_dpo_ctx_t), + "hicn_mapme_tfib_t is greater than hicn_dpo_ctx_t"); + +#define TFIB(dpo) ((hicn_mapme_tfib_t*)(dpo)) + +static_always_inline int +hicn_mapme_nh_set (hicn_mapme_tfib_t * tfib, dpo_id_t * face_id) +{ + tfib->next_hops[0] = *face_id; + tfib->entry_count = 1; + return 0; +} + +/** + * @brief Add a next hop iif it is not already a next hops + */ +static_always_inline int +hicn_mapme_nh_add (hicn_mapme_tfib_t * tfib, dpo_id_t * face_id) +{ + for (u8 pos = 0; pos < tfib->entry_count; pos++) + if (dpo_cmp (&tfib->next_hops[pos], face_id) == 0) + return 0; + tfib->next_hops[tfib->entry_count++] = *face_id; + return 0; +} + +/** + * Add a 'previous' hop to the TFIB + * + * XXX we should have the for look in the reverse order for simpler code. + */ +static_always_inline int +hicn_mapme_tfib_add (hicn_mapme_tfib_t * tfib, dpo_id_t * face_id) +{ + u8 pos = HICN_PARAM_FIB_ENTRY_NHOPS_MAX - tfib->tfib_entry_count; + + //XXX don 't add if it already exist + // eg.an old IU received on a face on which we are retransmitting + for (u8 pos2 = pos; pos2 < HICN_PARAM_FIB_ENTRY_NHOPS_MAX; pos2++) + if (dpo_cmp (&tfib->next_hops[pos2], face_id) == 0) + return 0; + + //Make sure we have enough room + if (pos <= tfib->entry_count) + return -1; + + tfib->next_hops[pos - 1] = *face_id; + tfib->tfib_entry_count++; + + return 0; +} + +static_always_inline int +hicn_mapme_tfib_del (hicn_mapme_tfib_t * tfib, dpo_id_t * face_id) +{ + /* + * We need to do a linear scan of TFIB entries to find the one to + * remove + */ + u8 start_pos = HICN_PARAM_FIB_ENTRY_NHOPS_MAX - tfib->tfib_entry_count; + u8 pos = ~0; + for (pos = start_pos; pos < HICN_PARAM_FIB_ENTRY_NHOPS_MAX; pos++) + if (dpo_cmp (&tfib->next_hops[pos], face_id) == 0) + break; + if (pos == HICN_PARAM_FIB_ENTRY_NHOPS_MAX) + /* Not found */ + return -1; + + tfib->tfib_entry_count--; + + /* Likely we won't receive a new IU twice from the same face */ + if (PREDICT_TRUE (pos > start_pos)) + memmove (tfib->next_hops + start_pos, tfib->next_hops + start_pos + 1, + (pos - start_pos) * sizeof (dpo_id_t)); + + return 0; +} + +/** + * @brief Performs an Exact Prefix Match lookup on the FIB + * @returns the corresponding DPO (hICN or IP LB), or NULL + */ +static_always_inline + dpo_id_t * fib_epm_lookup (ip46_address_t * addr, u8 plen) +{ + fib_prefix_t fib_pfx; + fib_node_index_t fib_entry_index; + u32 fib_index; + dpo_id_t *dpo_id; + load_balance_t *lb; + + const dpo_id_t *load_balance_dpo_id; + + /* At this point the face exists in the face table */ + fib_prefix_from_ip46_addr (addr, &fib_pfx); + fib_pfx.fp_len = plen; + + /* Check if the route already exist in the fib : EPM */ + fib_index = fib_table_find (fib_pfx.fp_proto, HICN_FIB_TABLE); + + fib_entry_index = fib_table_lookup_exact_match (fib_index, &fib_pfx); + if (fib_entry_index == FIB_NODE_INDEX_INVALID) + return NULL; + + load_balance_dpo_id = fib_entry_contribute_ip_forwarding (fib_entry_index); + + /* The dpo is not a load balance dpo as expected */ + if (load_balance_dpo_id->dpoi_type != DPO_LOAD_BALANCE) + return NULL; + + /* former_dpo_id is a load_balance dpo */ + lb = load_balance_get (load_balance_dpo_id->dpoi_index); + + /* Check if there is only one bucket */ + + /* + * We now distinguish the case where we have an hICN route (the + * regular case), and the case where we have an IP route, to be able + * to apply MAP-Me mechanisms even to a locator IP address. + */ + + for (int i = 0; i < lb->lb_n_buckets; i++) + { + /* un-const */ + dpo_id = (dpo_id_t *) load_balance_get_bucket_i (lb, i); + + if (dpo_is_hicn (dpo_id)) + return dpo_id; + } + + /* un-const */ + return (dpo_id_t *) load_balance_dpo_id; +} + +/* DPO types */ + +extern dpo_type_t hicn_face_udp_type; +extern dpo_type_t hicn_face_ip_type; + +/* VLIB EDGE IDs */ + +/* in faces/ip/face_ip.c */ +extern u32 strategy_face_ip4_vlib_edge; +extern u32 strategy_face_ip6_vlib_edge; +/* in faces/udp/face_udp.c */ +extern u32 strategy_face_udp6_vlib_edge; +extern u32 strategy_face_udp6_vlib_edge; + + +/** + * @brief Returns the next hop vlib edge on which we can send an Interest packet. + * + * This is both used to preprocess a dpo that will be stored as a next hop in the FIB, and to determine on which node to send an Interest Update. + */ +always_inline u32 +hicn_mapme_get_dpo_vlib_edge (dpo_id_t * dpo) +{ + if (dpo->dpoi_type == hicn_face_ip_type) + { + switch (dpo->dpoi_proto) + { + case DPO_PROTO_IP4: + return strategy_face_ip4_vlib_edge; + case DPO_PROTO_IP6: + return strategy_face_ip6_vlib_edge; + default: + return ~0; + } + } + else if (dpo->dpoi_type == hicn_face_udp_type) + { + switch (dpo->dpoi_proto) + { + case DPO_PROTO_IP4: + return strategy_face_udp6_vlib_edge; + case DPO_PROTO_IP6: + return strategy_face_udp6_vlib_edge; + default: + return ~0; + } + } + else + { + return ~0; + } +} + +/** + * @brief Returns the next hop node on which we can send an Update packet + */ +always_inline char * +hicn_mapme_get_dpo_face_node (dpo_id_t * dpo) +{ + if (dpo->dpoi_type == hicn_face_ip_type) + { + switch (dpo->dpoi_proto) + { + case DPO_PROTO_IP4: + return "hicn-face-ip4-output"; + case DPO_PROTO_IP6: + return "hicn-face-ip6-output"; + default: + return NULL; + } + } + else if (dpo->dpoi_type == hicn_face_udp_type) + { + switch (dpo->dpoi_proto) + { + case DPO_PROTO_IP4: + return "hicn-face-udp4-output"; + case DPO_PROTO_IP6: + return "hicn-face-udp6-output"; + default: + return NULL; + } + } + else + { + return NULL; + } +} + + +#define DEBUG(...) vlib_log_debug(mapme_main.log_class, __VA_ARGS__) +#define WARN(...) vlib_log_warn(mapme_main.log_class, __VA_ARGS__) +#define ERROR(...) vlib_log_err(mapme_main.log_class, __VA_ARGS__) + +#endif /* __HICN_MAPME__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/mapme_ack.h b/hicn-plugin/src/mapme_ack.h new file mode 100755 index 000000000..98a219982 --- /dev/null +++ b/hicn-plugin/src/mapme_ack.h @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * Copyright (c) 2017-2019 by Cisco Systems Inc. All Rights Reserved. + * + */ + +#ifndef HICN_MAPME_ACK_H +#define HICN_MAPME_ACK_H + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +/* Node context data */ +typedef struct hicn_mapme_ack_runtime_s +{ + int id; +} hicn_mapme_ack_runtime_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_mapme_ack_trace_t; + +typedef enum +{ + HICN_MAPME_ACK_NEXT_ERROR_DROP, + HICN_MAPME_ACK_N_NEXT, +} hicn_mapme_ack_next_t; + +#endif /* HICN_MAPME_ACK_H */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/mapme_ack_node.c b/hicn-plugin/src/mapme_ack_node.c new file mode 100755 index 000000000..21e177bb6 --- /dev/null +++ b/hicn-plugin/src/mapme_ack_node.c @@ -0,0 +1,224 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/ip/ip6_packet.h> +#include <hicn/hicn.h> + +#include "mapme.h" +#include "mapme_ack.h" +#include "mapme_eventmgr.h" +#include "mgmt.h" +#include "parser.h" +#include "data_fwd.h" +#include "infra.h" +#include "strategy_dpo_manager.h" +#include "error.h" +#include "state.h" + +extern hicn_mapme_main_t mapme_main; + +/* packet trace format function */ +static u8 *hicn_mapme_ack_format_trace (u8 * s, va_list * args); + + +/* Stats string values */ +static char *hicn_mapme_ack_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* + * @brief Process incoming ack messages (Interest Update Ack) + * @param vm vlib main data structure + * @param b Control packet (IU) + * @param face_id Ingress face id + */ +bool +hicn_mapme_process_ack (vlib_main_t * vm, vlib_buffer_t * b, + dpo_id_t * in_face) +{ + seq_t fib_seq; + const dpo_id_t *dpo; + hicn_prefix_t prefix; + mapme_params_t params; + int rc; + + /* Parse incoming message */ + rc = + hicn_mapme_parse_packet (vlib_buffer_get_current (b), &prefix, ¶ms); + if (rc < 0) + goto ERR_PARSE; + + if (params.seq == INVALID_SEQ) + { + DEBUG ("Invalid sequence number found in IU"); + return true; + } + + dpo = fib_epm_lookup (&(prefix.name), prefix.len); + if (!dpo) + { + DEBUG ("Ignored ACK for non-existing FIB entry. Ignored."); + return true; + + } + + /* We are only expecting ACKs for hICN DPOs */ + ASSERT (dpo_is_hicn (dpo)); + + const hicn_dpo_vft_t *dpo_vft = hicn_dpo_get_vft (dpo->dpoi_type); + hicn_mapme_tfib_t *tfib = + TFIB (dpo_vft->hicn_dpo_get_ctx (dpo->dpoi_index)); + fib_seq = tfib->seq; + + /* + * As we always retransmit IU with the latest seq, we are not interested in + * ACKs with inferior seq + */ + if (params.seq < fib_seq) + { + DEBUG ("Ignored ACK for low seq"); + return true; + } + + hicn_mapme_tfib_del (tfib, in_face); + + /* + * Is the ingress face in TFIB ? if so, remove it, otherwise it might be a + * duplicate + */ + retx_t *retx = + vlib_process_signal_event_data (vm, + hicn_mapme_eventmgr_process_node.index, + HICN_MAPME_EVENT_FACE_PH_DEL, 1, + sizeof (retx_t)); + *retx = (retx_t) + { + .prefix = prefix,.dpo = *dpo}; + return true; + +ERR_PARSE: + return false; +} + +vlib_node_registration_t hicn_mapme_ack_node; + +static uword +hicn_mapme_ack_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + hicn_buffer_t *hb; + hicn_mapme_ack_next_t next_index; + u32 n_left_from, *from, *to_next; + n_left_from = frame->n_vectors; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) // buffers in the current frame + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 bi0; + vlib_buffer_t *b0; + u32 next0 = HICN_MAPME_ACK_NEXT_ERROR_DROP; + u32 sw_if_index0; + /* speculatively enqueue b0 to the current next frame */ + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + b0 = vlib_get_buffer (vm, bi0); + + vlib_cli_output (vm, "Received IUAck"); + hb = hicn_get_buffer (b0); + hicn_mapme_process_ack (vm, b0, &hb->face_dpo_id); + + /* Single loop: process 1 packet here */ + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) + && (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_mapme_ack_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->sw_if_index = sw_if_index0; + t->next_index = next0; + } + /* $$$$$ Done processing 1 packet here $$$$$ */ + + /* verify speculative enqueue, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } +// vlib_node_increment_counter (vm, hicn_mapme_ack_node.index, +// HICN_MAPME_ACK_ERROR_SWAPPED, pkts_swapped); + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_mapme_ack_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_mapme_ack_trace_t *t = va_arg (*args, hicn_mapme_ack_trace_t *); + + s = format (s, "MAPME_ACK: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + + +/* + * Node registration for the MAP-Me node processing special interests + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_mapme_ack_node) = +{ + .function = hicn_mapme_ack_node_fn, + .name = "hicn-mapme-ack", + .vector_size = sizeof (u32), + .runtime_data_bytes = sizeof (hicn_mapme_ack_runtime_t), + .format_trace = hicn_mapme_ack_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_mapme_ack_error_strings), + .error_strings = hicn_mapme_ack_error_strings, + .n_next_nodes = HICN_MAPME_ACK_N_NEXT, + .next_nodes = + { + [HICN_MAPME_ACK_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/mapme_ctrl.h b/hicn-plugin/src/mapme_ctrl.h new file mode 100755 index 000000000..e7c1cdf64 --- /dev/null +++ b/hicn-plugin/src/mapme_ctrl.h @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * Copyright (c) 2017-2019 by Cisco Systems Inc. All Rights Reserved. + * + */ + +#ifndef HICN_MAPME_CTRL_H +#define HICN_MAPME_CTRL_H + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +/* Node context data */ +typedef struct hicn_mapme_ctrl_runtime_s +{ + int id; +} hicn_mapme_ctrl_runtime_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_mapme_ctrl_trace_t; + +typedef enum +{ + HICN_MAPME_CTRL_NEXT_IP4_OUTPUT, + HICN_MAPME_CTRL_NEXT_IP6_OUTPUT, + HICN_MAPME_CTRL_NEXT_UDP46_OUTPUT, + HICN_MAPME_CTRL_NEXT_UDP66_OUTPUT, + HICN_MAPME_CTRL_NEXT_ERROR_DROP, + HICN_MAPME_CTRL_N_NEXT, +} hicn_mapme_ctrl_next_t; +/** + * @brief Returns the next hop node on which we can send an ACK packet + */ +always_inline hicn_mapme_ctrl_next_t +hicn_mapme_get_dpo_iface_node (dpo_id_t * dpo) +{ + if (dpo->dpoi_type == hicn_face_ip_type) + { + switch (dpo->dpoi_proto) + { + case DPO_PROTO_IP4: + return HICN_MAPME_CTRL_NEXT_IP4_OUTPUT; + case DPO_PROTO_IP6: + return HICN_MAPME_CTRL_NEXT_IP6_OUTPUT; + default: + return HICN_MAPME_CTRL_NEXT_ERROR_DROP; + } + } + else if (dpo->dpoi_type == hicn_face_udp_type) + { + switch (dpo->dpoi_proto) + { + case DPO_PROTO_IP4: + return HICN_MAPME_CTRL_NEXT_UDP46_OUTPUT; + case DPO_PROTO_IP6: + return HICN_MAPME_CTRL_NEXT_UDP66_OUTPUT; + default: + return HICN_MAPME_CTRL_NEXT_ERROR_DROP; + } + } + else + { + return HICN_MAPME_CTRL_NEXT_ERROR_DROP; + } +} + +#endif /* HICN_MAPME_CTRL_H */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/mapme_ctrl_node.c b/hicn-plugin/src/mapme_ctrl_node.c new file mode 100755 index 000000000..9fc0c9055 --- /dev/null +++ b/hicn-plugin/src/mapme_ctrl_node.c @@ -0,0 +1,333 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * This node processses MAP-Me control messages. + */ +#include <vnet/ip/ip6_packet.h> +#include <vnet/dpo/load_balance.h> +#include <hicn/hicn.h> + +#include "mapme.h" +#include "mapme_ctrl.h" +#include "mapme_eventmgr.h" +#include "mgmt.h" +#include "parser.h" +#include "infra.h" +#include "strategy_dpo_manager.h" +#include "error.h" +#include "state.h" + +extern hicn_mapme_main_t mapme_main; + +#define MS2NS(x) x * 1000000 + +/* Functions declarations */ + +/* packet trace format function */ +static u8 *hicn_mapme_ctrl_format_trace (u8 * s, va_list * args); + + +/* Stats string values */ +static char *hicn_mapme_ctrl_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/** + * Preprocess the ingress face so as to make it a candidate next hop, which is + * what MAP-Me will handle + */ +static_always_inline void +preprocess_in_face (hicn_type_t type, dpo_id_t * in, dpo_id_t * out) +{ + u32 vlib_edge = hicn_mapme_get_dpo_vlib_edge (in); + *out = *in; + out->dpoi_next_node = vlib_edge; +} + +/* + * @brief Process incoming control messages (Interest Update) + * @param vm vlib main data structure + * @param b Control packet (IU) + * @param face_id Ingress face id + * + * NOTE: + * - this function answers locally to the IU interest by replying with a Ack + * (Data) packet, unless in case of outdated information, in which we can + * consider the interest is dropped, and another IU (aka ICMP error) is sent so + * that retransmissions stop. + */ +static_always_inline bool +hicn_mapme_process_ctrl (vlib_main_t * vm, vlib_buffer_t * b, + dpo_id_t * in_face) +{ + seq_t fib_seq; + const dpo_id_t *dpo; + hicn_prefix_t prefix; + mapme_params_t params; + int rc; + + /* Parse incoming message */ + rc = + hicn_mapme_parse_packet (vlib_buffer_get_current (b), &prefix, ¶ms); + if (rc < 0) + goto ERR_PARSE; + + vlib_cli_output (vm, "IU - type:%d seq:%d len:%d", params.type, params.seq, + prefix.len); + + if (params.seq == INVALID_SEQ) + { + vlib_log_warn (mapme_main.log_class, + "Invalid sequence number found in IU"); + + return true; + } + + /* We forge the ACK which we be the packet forwarded by the node */ + hicn_mapme_create_ack (vlib_buffer_get_current (b), ¶ms); + + dpo = fib_epm_lookup (&prefix.name, prefix.len); + if (!dpo) + { +#ifdef HICN_MAPME_ALLOW_NONEXISTING_FIB_ENTRY + /* + * This might happen for a node hosting a producer which has moved. + * Destroying the face has led to removing all corresponding FIB + * entries. In that case, we need to correctly restore the FIB entries. + */ + DEBUG ("Re-creating FIB entry with next hop on connection") +#error "not implemented" +#else + //ERROR("Received IU for non-existing FIB entry"); + return false; +#endif /* HICN_MAPME_ALLOW_NONEXISTING_FIB_ENTRY */ + + } + +#ifdef HICN_MAPME_ALLOW_LOCATORS + if (!dpo_is_hicn ((dpo))) + { + /* We have an IP DPO */ + WARN ("Not implemented yet."); + return false; + } +#endif + + /* Process the hICN DPO */ + const hicn_dpo_vft_t *dpo_vft = hicn_dpo_get_vft (dpo->dpoi_type); + hicn_mapme_tfib_t *tfib = + TFIB (dpo_vft->hicn_dpo_get_ctx (dpo->dpoi_index)); + fib_seq = tfib->seq; + + if (params.seq > fib_seq) + { + DEBUG + ("Higher sequence number than FIB %d > %d, updating seq and next hops", + params.seq, fib_seq); + + /* This has to be done first to allow processing ack */ + tfib->seq = params.seq; + + // in_face and next_hops are face_id_t + + /* Remove ingress face from TFIB in case it was present */ + hicn_mapme_tfib_del (tfib, in_face); + + /* Move next hops to TFIB... but in_face... */ + for (u8 pos = 0; pos < tfib->entry_count; pos++) + { + if (dpo_cmp (&tfib->next_hops[pos], in_face) == 0) + continue; + hicn_mapme_tfib_add (tfib, &tfib->next_hops[pos]); + } + + /* ... and set ingress face as next_hop */ + hicn_mapme_nh_set (tfib, in_face); + + /* We transmit both the prefix and the full dpo (type will be needed to pick the right transmit node */ + retx_t *retx = + vlib_process_signal_event_data (vm, + hicn_mapme_eventmgr_process_node. + index, + HICN_MAPME_EVENT_FACE_NH_SET, 1, + sizeof (retx_t)); + *retx = (retx_t) + { + .prefix = prefix,.dpo = *dpo}; + + } + else if (params.seq == fib_seq) + { + DEBUG ("Same sequence number than FIB %d > %d, adding next hop", + params.seq, fib_seq); + + /* Remove ingress face from TFIB in case it was present */ + hicn_mapme_tfib_del (tfib, in_face); + + /* Add ingress face to next hops */ + hicn_mapme_nh_add (tfib, in_face); + + /* Multipath, multihoming, multiple producers or duplicate interest */ + retx_t *retx = + vlib_process_signal_event_data (vm, + hicn_mapme_eventmgr_process_node. + index, + HICN_MAPME_EVENT_FACE_NH_ADD, 1, + sizeof (retx_t)); + *retx = (retx_t) + { + .prefix = prefix,.dpo = *dpo}; + } + else // params.seq < fib_seq + { + /* + * face is propagating outdated information, we can just consider it as a + * prevHops + */ + hicn_mapme_tfib_add (tfib, in_face); + + retx_t *retx = + vlib_process_signal_event_data (vm, + hicn_mapme_eventmgr_process_node. + index, + HICN_MAPME_EVENT_FACE_PH_ADD, 1, + sizeof (retx_t)); + *retx = (retx_t) + { + .prefix = prefix,.dpo = *dpo}; + } + + /* We just raise events, the event_mgr is in charge of forging packet. */ + + return true; + +//ERR_ACK_CREATE: +ERR_PARSE: + return false; +} + +vlib_node_registration_t hicn_mapme_ctrl_node; + +static uword +hicn_mapme_ctrl_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + hicn_buffer_t *hb; + hicn_mapme_ctrl_next_t next_index; + u32 n_left_from, *from, *to_next; + n_left_from = frame->n_vectors; + dpo_id_t in_face; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) // buffers in the current frame + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 bi0; + vlib_buffer_t *b0; + + /* speculatively enqueue b0 to the current next frame */ + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + b0 = vlib_get_buffer (vm, bi0); + hb = hicn_get_buffer (b0); + + /* This determines the next node on which the ack will be sent back */ + u32 next0 = hicn_mapme_get_dpo_iface_node (&hb->face_dpo_id); + + /* Preprocessing is needed to precompute in the dpo the next node + * that will have to be followed by regular interests when being + * forwarder on a given next hop + */ + preprocess_in_face (hb->type, &hb->face_dpo_id, &in_face); + hicn_mapme_process_ctrl (vm, b0, &in_face); + + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, bi0, next0); + + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + // vlib_node_increment_counter (vm, hicn_mapme_ctrl_node.index, + // HICN_MAPME_CTRL_ERROR_SWAPPED, pkts_swapped); + return frame->n_vectors; +} + +/* packet trace format function */ +static u8 * +hicn_mapme_ctrl_format_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_mapme_ctrl_trace_t *t = va_arg (*args, hicn_mapme_ctrl_trace_t *); + + s = format (s, "MAPME_CTRL: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + + +/* + * Node registration for the MAP-Me node processing special interests + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_mapme_ctrl_node) = +{ + .function = hicn_mapme_ctrl_node_fn, + .name = "hicn-mapme-ctrl", + .vector_size = sizeof (u32), + .runtime_data_bytes = sizeof (hicn_mapme_ctrl_runtime_t), + .format_trace = hicn_mapme_ctrl_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_mapme_ctrl_error_strings), + .error_strings = hicn_mapme_ctrl_error_strings, + .n_next_nodes = HICN_MAPME_CTRL_N_NEXT, + .next_nodes = + { + /* + * Control packets are not forwarded by this node, but sent by the Event + * Manager. This node is only responsible for sending ACK back, + * Acks are like data packets are output on iface's + */ + [HICN_MAPME_CTRL_NEXT_IP4_OUTPUT] = "hicn-iface-ip4-output", + [HICN_MAPME_CTRL_NEXT_IP6_OUTPUT] = "hicn-iface-ip6-output", + [HICN_MAPME_CTRL_NEXT_UDP46_OUTPUT] = "hicn-iface-udp4-output", + [HICN_MAPME_CTRL_NEXT_UDP66_OUTPUT] = "hicn-iface-udp6-output", + [HICN_MAPME_CTRL_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/mapme_eventmgr.c b/hicn-plugin/src/mapme_eventmgr.c new file mode 100755 index 000000000..5d5916403 --- /dev/null +++ b/hicn-plugin/src/mapme_eventmgr.c @@ -0,0 +1,559 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "hicn.h" +#include "strategy_dpo_ctx.h" +#include "mapme.h" +#include "mapme_eventmgr.h" +#include "strategies/dpo_mw.h" + +#include <vnet/fib/ip4_fib.h> +#include <vnet/fib/ip6_fib.h> + +#define DEFAULT_TIMEOUT 1.0 /* s */ + +hicn_mapme_main_t mapme_main; + +hicn_prefix_t *retx_pool; +uword *retx_hash; + +void +hicn_mapme_init (vlib_main_t * vm) +{ + mapme_main.vm = vm; + mapme_main.log_class = vlib_log_register_class ("hicn_mapme", 0); +} + +/* borrowed from vnet/fib/ip4_fib.c */ + +typedef struct ip4_fib_show_walk_ctx_t_ +{ + fib_node_index_t *ifsw_indicies; +} ip4_fib_show_walk_ctx_t; + +static fib_table_walk_rc_t +ip4_fib_show_walk_cb (fib_node_index_t fib_entry_index, void *arg) +{ + ip4_fib_show_walk_ctx_t *ctx = arg; + + vec_add1 (ctx->ifsw_indicies, fib_entry_index); + + return (FIB_TABLE_WALK_CONTINUE); +} + +/* borrowed from vnet/fib/ip6_fib.c */ + +typedef struct ip6_fib_show_ctx_t_ +{ + fib_node_index_t *entries; +} ip6_fib_show_ctx_t; + +static fib_table_walk_rc_t +ip6_fib_table_show_walk (fib_node_index_t fib_entry_index, void *arg) +{ + ip6_fib_show_ctx_t *ctx = arg; + + vec_add1 (ctx->entries, fib_entry_index); + + return (FIB_TABLE_WALK_CONTINUE); +} + +void +hicn_mapme_process_fib_entry (vlib_main_t * vm, dpo_id_t face, + const fib_node_index_t * fib_entry_index) +{ + const dpo_id_t *load_balance_dpo_id; + load_balance_t *lb; + dpo_id_t *dpo_id; + fib_entry_t *fib_entry; + + load_balance_dpo_id = fib_entry_contribute_ip_forwarding (*fib_entry_index); + + /* The dpo is not a load balance dpo as expected */ + if (load_balance_dpo_id->dpoi_type != DPO_LOAD_BALANCE) + return; + + /* former_dpo_id is a load_balance dpo */ + lb = load_balance_get (load_balance_dpo_id->dpoi_index); + + for (int i = 0; i < lb->lb_n_buckets; i++) + { + /* un-const */ + dpo_id = (dpo_id_t *) load_balance_get_bucket_i (lb, i); + + if (dpo_is_hicn (dpo_id)) + { + fib_entry = fib_entry_get (*fib_entry_index); + vlib_cli_output (vm, "set face pending %U", format_fib_prefix, + &fib_entry->fe_prefix); + } + } +} + +void +hicn_mapme_process_ip4_fib (vlib_main_t * vm, dpo_id_t face) +{ + ip4_main_t *im4 = &ip4_main; + fib_table_t *fib_table; + int table_id = -1, fib_index = ~0; + + /* *INDENT-OFF* */ + pool_foreach (fib_table, im4->fibs, + ({ + ip4_fib_t *fib = pool_elt_at_index(im4->v4_fibs, fib_table->ft_index); + + if (table_id >= 0 && table_id != (int)fib->table_id) + continue; + if (fib_index != ~0 && fib_index != (int)fib->index) + continue; + + fib_node_index_t *fib_entry_index; + ip4_fib_show_walk_ctx_t ctx = { + .ifsw_indicies = NULL, + }; + + ip4_fib_table_walk(fib, ip4_fib_show_walk_cb, &ctx); + //vec_sort_with_function(ctx.ifsw_indicies, fib_entry_cmp_for_sort); + + vec_foreach(fib_entry_index, ctx.ifsw_indicies) + { + hicn_mapme_process_fib_entry(vm, face, fib_entry_index); + } + + vec_free(ctx.ifsw_indicies); + })); + /* *INDENT-ON* */ +} + +void +hicn_mapme_process_ip6_fib (vlib_main_t * vm, dpo_id_t face) +{ + /* Walk IPv6 FIB */ + ip6_main_t *im6 = &ip6_main; + fib_table_t *fib_table; + ip6_fib_t *fib; + int table_id = -1, fib_index = ~0; + + /* *INDENT-OFF* */ + pool_foreach (fib_table, im6->fibs, + ({ + fib = pool_elt_at_index(im6->v6_fibs, fib_table->ft_index); + + if (table_id >= 0 && table_id != (int)fib->table_id) + continue; + if (fib_index != ~0 && fib_index != (int)fib->index) + continue; + if (fib_table->ft_flags & FIB_TABLE_FLAG_IP6_LL) + continue; + + fib_node_index_t *fib_entry_index; + ip6_fib_show_ctx_t ctx = { + .entries = NULL, + }; + + ip6_fib_table_walk(fib->index, ip6_fib_table_show_walk, &ctx); + //vec_sort_with_function(ctx.entries, fib_entry_cmp_for_sort); + + vec_foreach(fib_entry_index, ctx.entries) + { + hicn_mapme_process_fib_entry(vm, face, fib_entry_index); + } + + vec_free(ctx.entries); + + })); + /* *INDENT-ON* */ +} + + +/** + * Callback called everytime a new face is created (not including app faces) + */ +void +hicn_mapme_on_face_added (vlib_main_t * vm, dpo_id_t face) +{ + hicn_mapme_process_ip4_fib (vm, face); + hicn_mapme_process_ip6_fib (vm, face); +} + +/* + * We need a retransmission pool holding all necessary information for crafting + * special interests, thus including both the DPO and the prefix associated to + * it. + */ +#define NUM_RETX_ENTRIES 100 +#define NUM_RETX_SLOT 2 +#define NEXT_SLOT(cur) (1-cur) +#define CUR retx_array[cur] +#define NXT retx_array[NEXT_SLOT(cur)] +#define CURLEN retx_len[cur] +#define NXTLEN retx_len[NEXT_SLOT(cur)] + +static_always_inline void * +get_packet_buffer (vlib_main_t * vm, u32 node_index, u32 dpoi_index, + ip46_address_t * addr, hicn_type_t type) +{ + vlib_frame_t *f; + vlib_buffer_t *b; // for newly created packet + u32 *to_next; + u32 bi; + u8 *buffer; + + if (vlib_buffer_alloc (vm, &bi, 1) != 1) + { + clib_warning ("buffer allocation failure"); + return NULL; + } + + /* Create a new packet from scratch */ + b = vlib_get_buffer (vm, bi); + ASSERT (b->current_data == 0); + + /* Face information for next hop node index */ + vnet_buffer (b)->ip.adj_index[VLIB_TX] = dpoi_index; + hicn_get_buffer (b)->type = type; + + /* Enqueue the packet right now */ + f = vlib_get_frame_to_node (vm, node_index); + to_next = vlib_frame_vector_args (f); + to_next[0] = bi; + f->n_vectors = 1; + vlib_put_frame_to_node (vm, node_index, f); + + // pointer to IP layer ? do we need to prepare for ethernet ??? + buffer = vlib_buffer_get_current (b); + b->current_length = + (type.l1 == IPPROTO_IPV6) ? HICN_MAPME_V6_HDRLEN : HICN_MAPME_V4_HDRLEN; + + return buffer; +} + +static_always_inline bool +hicn_mapme_send_message (vlib_main_t * vm, const hicn_prefix_t * prefix, + mapme_params_t * params, dpo_id_t * face) +{ + size_t n; + + /* This should be retrieved from face information */ + DEBUG ("Retransmission for prefix %U seq=%d", format_ip46_address, + &prefix->name, IP46_TYPE_ANY, params->seq); + + char *node_name = hicn_mapme_get_dpo_face_node (face); + if (!node_name) + { + clib_warning + ("Could not determine next node for sending MAP-Me packet"); + return false; + } + + vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) node_name); + u32 node_index = node->index; + + u8 *buffer = + get_packet_buffer (vm, node_index, face->dpoi_index, + (ip46_address_t *) prefix, + (params->protocol == + IPPROTO_IPV6) ? HICN_TYPE_IPV6_ICMP : + HICN_TYPE_IPV4_ICMP); + n = hicn_mapme_create_packet (buffer, prefix, params); + if (n <= 0) + { + clib_warning ("Could not create MAP-Me packet"); + return false; + } + + return true; +} + +static_always_inline void +hicn_mapme_send_updates (vlib_main_t * vm, hicn_prefix_t * prefix, + dpo_id_t dpo, bool send_all) +{ + const hicn_dpo_vft_t *dpo_vft = hicn_dpo_get_vft (dpo.dpoi_type); + hicn_mapme_tfib_t *tfib = TFIB (dpo_vft->hicn_dpo_get_ctx (dpo.dpoi_index)); + u8 tfib_last_idx = HICN_PARAM_FIB_ENTRY_NHOPS_MAX - tfib->tfib_entry_count; + if (!tfib) + { + DEBUG ("NULL TFIB entry id=%d", dpo.dpoi_index); + return; + } + + mapme_params_t params = { + .protocol = ip46_address_is_ip4 (&prefix->name) + ? IPPROTO_IP : IPPROTO_IPV6, + .type = UPDATE, + .seq = tfib->seq, + }; + + if (send_all) + { + for (u8 pos = tfib_last_idx; pos < HICN_PARAM_FIB_ENTRY_NHOPS_MAX; + pos++) + { + hicn_mapme_send_message (vm, prefix, ¶ms, + &tfib->next_hops[pos]); + } + } + else + { + hicn_mapme_send_message (vm, prefix, ¶ms, + &tfib->next_hops[tfib_last_idx]); + } +} + +static uword +hicn_mapme_eventmgr_process (vlib_main_t * vm, + vlib_node_runtime_t * rt, vlib_frame_t * f) +{ + f64 timeout = 0; /* By default, no timer is run */ + f64 current_time, due_time; + u8 idle = 0; + + retx_t retx_array[NUM_RETX_SLOT][NUM_RETX_ENTRIES]; + u8 retx_len[NUM_RETX_SLOT] = { 0 }; + u8 cur = 0; /* current slot */ + + hicn_mapme_init (vm); + + for (;;) + { + /* NOTE: returned timeout seems to always be 0 with get_event_data + * instead of get_event, and we thus need to reimplement timeout + * management on top, as done elsewhere in VPP code. + * + * The most probable event. For simplicity, for new faces, we pass the same retx_t with no + * prefix + */ + if (timeout != 0) + { + /* timeout = */ vlib_process_wait_for_event_or_clock (vm, timeout); + current_time = vlib_time_now (vm); + + /* + * As we don't accummulate errors, we allow for simple timer + * management with no error correction accounting for elapsed time. + * Also, we only run a timer when there are pending retransmissions. + */ + timeout = + (due_time > + current_time) ? due_time - current_time : DEFAULT_TIMEOUT; + due_time = current_time + timeout; + } + else + { + vlib_process_wait_for_event (vm); + } + + uword event_type = ~0; + void *event_data = vlib_process_get_event_data (vm, &event_type); + + switch (event_type) + { + case HICN_MAPME_EVENT_FACE_ADD: + { + /* + * A face has been added: + * - In case of a local app face, we need to advertise a new prefix + * - For another local face type, we need to advertise local + * prefixes and schedule retransmissions + */ + retx_t *retx_events = event_data; + for (u8 i = 0; i < vec_len (retx_events); i++) + { + hicn_mapme_on_face_added (vm, retx_events[i].dpo); + } + idle = 0; + } + break; + + case HICN_MAPME_EVENT_FACE_DEL: + idle = 0; + break; + + case HICN_MAPME_EVENT_FACE_NH_SET: + { + /* + * An hICN FIB entry has been modified. All operations so far + * have been procedded in the nodes. Here we need to track + * retransmissions upon timeout: we mark the FIB entry as pending in + * the second-to-next slot + */ + + /* Mark FIB entry as pending for second-to-next slot */ + retx_t *retx_events = event_data; + for (u8 i = 0; i < vec_len (retx_events); i++) + { + /* + * retx_events[i] corresponds to the dpoi_index of the (T)FIB + * structure that has been modified. Multiple successive + * events might correspond to the same entry. + * + * The FIB entry has a new next hop, and its TFIB section has: + * - eventually previous prev hops for which a IU with a + * lower seqno has been sent + * - the prev hops that have just been added. + * + * We don't distinguish any and just send an updated IU to all + * of them. The retransmission of the latest IU to all + * facilitates the matching of ACKs to a single seqno which is + * the one stored in the FIB. + * + * Since we retransmit to all prev hops, we can remove this + * (T)FIB entry for the check at the end of the current slot. + */ + retx_t *retx = (retx_t *) & retx_events[i]; + + /* + * Transmit IU for all TFIB entries with latest seqno (we have + * at least one for sure!) + */ + hicn_mapme_send_updates (vm, &retx->prefix, retx->dpo, true); + + /* Delete entry_id from retransmissions in the current slot (if present) ... */ + for (u8 j = 0; j < CURLEN; j++) + if (dpo_cmp (&(CUR[j].dpo), &retx->dpo)) + { + CUR[j].dpo.dpoi_index = ~0; /* sufficient */ + } + + /* ... and schedule it for next slot (if not already) */ + u8 j; + for (j = 0; j < NXTLEN; j++) + if (dpo_cmp (&NXT[j].dpo, &retx->dpo)) + break; + if (j == NXTLEN) /* not found */ + NXT[NXTLEN++] = *retx; + } + idle = 0; + } + break; + + case HICN_MAPME_EVENT_FACE_NH_ADD: + /* + * As per the description of states, this event should add the face + * to the list of next hops, and eventually remove it from TFIB. + * This corresponds to the multipath case. + * + * In all cases, we assume the propagation was already done when the first + * interest with the same sequence number was received, so we stop here + * No change in TFIB = no IU to send + * + * No change in timers. + */ + vlib_cli_output (vm, "[hicn_event_mgr] ADD NEXT HOP IN FIB"); + + /* Add ingress face as next hop */ + idle = 0; + + break; + + case HICN_MAPME_EVENT_FACE_PH_ADD: + /* Back-propagation, interesting even for IN (desync) */ + { + retx_t *retx_events = event_data; + for (u8 i = 0; i < vec_len (retx_events); i++) + { + hicn_mapme_send_updates (vm, &retx_events[i].prefix, + retx_events[i].dpo, false); + } + idle = 0; + } + break; + + case HICN_MAPME_EVENT_FACE_PH_DEL: + /* Ack : remove an element from TFIB */ + break; + + case ~0: + /* Timeout occurred, we have to retransmit IUs for all pending + * prefixes having entries in TFIB + * + * timeouts are slotted + * | | | | + * + * ^ + * +- event occurred + * new face, wait for the second next + * (having two arrays and swapping cur and next) + * retx : put in next + */ + idle += 1; + for (u8 pos = 0; pos < CURLEN; pos++) + { + retx_t *retx = &CUR[pos]; + + if (retx->dpo.dpoi_index == ~0) /* deleted entry */ + continue; + + const hicn_dpo_vft_t *dpo_vft = + hicn_dpo_get_vft (retx->dpo.dpoi_type); + hicn_mapme_tfib_t *tfib = + TFIB (dpo_vft->hicn_dpo_get_ctx (retx->dpo.dpoi_index)); + if (!tfib) + { + DEBUG ("NULL TFIB entry for dpoi_index=%d", + retx->dpo.dpoi_index); + continue; + } + + hicn_mapme_send_updates (vm, &retx->prefix, retx->dpo, true); + + /* + * We did some retransmissions, so let's reschedule a check in the + * next slot + */ + NXT[NXTLEN++] = CUR[pos]; + idle = 0; + } + + /* Reset events in this slot and prepare for next one */ + CURLEN = 0; + cur = NEXT_SLOT (cur); + + /* After two empty slots, we disable the timer */ + + break; + } + + if (event_data) + vlib_process_put_event_data (vm, event_data); + + timeout = (idle > 1) ? 0 : DEFAULT_TIMEOUT; + + // if (vlib_process_suspend_time_is_zero (timeout)) { ... } + + } + + /* NOTREACHED */ + return 0; +} + +/* Not static as we need to access it from hicn_face */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_mapme_eventmgr_process_node) = { //,static) = { + .function = hicn_mapme_eventmgr_process, + .type = VLIB_NODE_TYPE_PROCESS, + .name = "mapme-eventmgr-process", + .process_log2_n_stack_bytes = 16, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/mapme_eventmgr.h b/hicn-plugin/src/mapme_eventmgr.h new file mode 100755 index 000000000..2f8106d6c --- /dev/null +++ b/hicn-plugin/src/mapme_eventmgr.h @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> // vlib_node_registration_t (vlib/node.h) + +/* + * Structure carrying all necessary information for managing Special Interest + * (re)transmissions. + */ +typedef struct +{ + hicn_prefix_t prefix; + dpo_id_t dpo; +} retx_t; + +#define HASH32(x) ((u16)x ^ (x << 16)) + +/** + * @brief This is a process node reacting to face events. + */ +// not static ! +vlib_node_registration_t hicn_mapme_eventmgr_process_node; + +/** + * @brief Initialize MAP-Me on forwarder + * @params vm - vlib_main_t pointer + */ +void hicn_mapme_init (vlib_main_t * vm); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/mgmt.c b/hicn-plugin/src/mgmt.c new file mode 100755 index 000000000..b992ba15c --- /dev/null +++ b/hicn-plugin/src/mgmt.c @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> +#include <vppinfra/error.h> + +#include "hicn.h" +#include "infra.h" +#include "mgmt.h" + +/* define message IDs */ +#include "hicn_msg_enum.h" + +/* shared routine betweeen API and CLI, leveraging API message structure */ +int +hicn_mgmt_node_stats_get (vl_api_hicn_api_node_stats_get_reply_t * rmp) +{ + rmp->pkts_processed = 0; + rmp->pkts_interest_count = 0; + rmp->pkts_data_count = 0; + rmp->pkts_from_cache_count = 0; + rmp->pkts_no_pit_count = 0; + rmp->pit_expired_count = 0; + rmp->cs_expired_count = 0; + rmp->cs_lru_count = 0; + rmp->pkts_drop_no_buf = 0; + rmp->interests_aggregated = 0; + rmp->interests_retx = 0; + rmp->pit_entries_count = + clib_host_to_net_u64 (hicn_main.pitcs.pcs_pit_count); + rmp->cs_entries_count = clib_host_to_net_u64 (hicn_main.pitcs.pcs_cs_count); + rmp->cs_entries_ntw_count = + clib_host_to_net_u64 (hicn_main.pitcs.policy_state.count); + + vlib_error_main_t *em; + vlib_node_t *n; + foreach_vlib_main (( + { + em = &this_vlib_main->error_main; + n = + vlib_get_node (this_vlib_main, + hicn_interest_pcslookup_node.index); + u32 node_cntr_base_idx = n->error_heap_index; + rmp->pkts_processed += + clib_host_to_net_u64 (em->counters[node_cntr_base_idx + + HICNFWD_ERROR_PROCESSED]); + rmp->pkts_interest_count += + clib_host_to_net_u64 (em->counters[node_cntr_base_idx + + HICNFWD_ERROR_INTERESTS]); + n = + vlib_get_node (this_vlib_main, + hicn_data_pcslookup_node.index); + node_cntr_base_idx = n->error_heap_index; + rmp->pkts_processed += + clib_host_to_net_u64 (em->counters[node_cntr_base_idx + + HICNFWD_ERROR_PROCESSED]); + n = + vlib_get_node (this_vlib_main, + hicn_data_pcslookup_node.index); + node_cntr_base_idx = n->error_heap_index; + rmp->pkts_data_count += + clib_host_to_net_u64 (em->counters[node_cntr_base_idx + + HICNFWD_ERROR_DATAS]); + n = + vlib_get_node (this_vlib_main, + hicn_interest_hitcs_node.index); + node_cntr_base_idx = n->error_heap_index; + rmp->pkts_from_cache_count += + clib_host_to_net_u64 (em->counters[node_cntr_base_idx + + HICNFWD_ERROR_CACHED]); + n = + vlib_get_node (this_vlib_main, + hicn_interest_hitpit_node.index); + node_cntr_base_idx = n->error_heap_index; + rmp->interests_aggregated += + clib_host_to_net_u64 (em->counters[node_cntr_base_idx + + HICNFWD_ERROR_INTEREST_AGG]); + rmp->interests_retx += + clib_host_to_net_u64 (em->counters[node_cntr_base_idx + + HICNFWD_ERROR_INT_RETRANS]);})); + return (HICN_ERROR_NONE); +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/mgmt.h b/hicn-plugin/src/mgmt.h new file mode 100755 index 000000000..08b1de089 --- /dev/null +++ b/hicn-plugin/src/mgmt.h @@ -0,0 +1,132 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_MGMT_H__ +#define __HICN_MGMT_H__ + +#include <vppinfra/error.h> +#include "faces/face.h" +#include "hicn_api.h" + +typedef struct icn_stats_s +{ + u32 pkts_processed; + u32 pkts_interest_count; + u32 pkts_data_count; + u32 pkts_from_cache_count; + u32 pkts_no_pit_count; + u32 pit_expired_count; + u32 cs_expired_count; + u32 no_bufs_count; + u32 pkts_interest_agg; + u32 pkts_int_retrans; + u32 pit_int_count; + u32 pit_cs_count; +} icn_stats_t; + +typedef enum +{ + HICN_MGMT_FACE_OP_NONE = 0, + HICN_MGMT_FACE_OP_CREATE, + HICN_MGMT_FACE_OP_DELETE, + HICN_MGMT_FACE_OP_ADMIN, + HICN_MGMT_FACE_OP_HELLO, +} hicn_mgmt_face_op_e; + + +typedef enum +{ + HICN_MGMT_PUNTING_OP_NONE = 0, + HICN_MGMT_PUNTING_OP_CREATE, + HICN_MGMT_PUNTING_OP_DELETE, + HICN_MGMT_PUNTING_OP_ENABLE, + HICN_MGMT_PUNTING_OP_DISABLE +} hicn_mgmt_punting_op_e; + +typedef enum +{ + HICN_MGMT_MAPME_OP_NONE = 0, + HICN_MGMT_MAPME_OP_CREATE, + HICN_MGMT_MAPME_OP_DELETE, + HICN_MGMT_MAPME_OP_ENABLE, + HICN_MGMT_MAPME_OP_DISABLE +} hicn_mgmt_mapme_op_e; + +typedef enum +{ + HICN_ADDRESS_TYPE_NONE, + HICN_ADDRESS_TYPE_V4, + HICN_ADDRESS_TYPE_V6 +} hicn_address_type_e; + +/* + * Utility to update error counters in all hICN nodes + */ +always_inline void +update_node_counter (vlib_main_t * vm, u32 node_idx, u32 counter_idx, u64 val) +{ + vlib_node_t *node = vlib_get_node (vm, node_idx); + vlib_error_main_t *em = &(vm->error_main); + u32 base_idx = node->error_heap_index; + + em->counters[base_idx + counter_idx] = val; +} + + +/* + * Stats for the forwarding node, which end up called "error" even though + * they aren't... + */ +#define foreach_hicnfwd_error \ + _(PROCESSED, "hICN packets processed") \ + _(INTERESTS, "hICN interests forwarded") \ + _(DATAS, "hICN data msgs forwarded") \ + _(CACHED, "Cached data ") \ + _(NO_PIT, "hICN no PIT entry drops") \ + _(PIT_EXPIRED, "hICN expired PIT entries") \ + _(CS_EXPIRED, "hICN expired CS entries") \ + _(CS_LRU, "hICN LRU CS entries freed") \ + _(NO_BUFS, "No packet buffers") \ + _(INTEREST_AGG, "Interests aggregated") \ + _(INTEREST_AGG_ENTRY, "Interest aggregated per entry") \ + _(INT_RETRANS, "Interest retransmissions") \ + _(INT_COUNT, "Interests in PIT") \ + _(CS_COUNT, "CS total entries") \ + _(CS_NTW_COUNT, "CS ntw entries") \ + _(CS_APP_COUNT, "CS app entries") \ + _(HASH_COLL_HASHTB_COUNT, "Collisions in Hash table") + +typedef enum +{ +#define _(sym, str) HICNFWD_ERROR_##sym, + foreach_hicnfwd_error +#undef _ + HICNFWD_N_ERROR, +} hicnfwd_error_t; + +/* + * Declarations + */ +clib_error_t *hicn_api_plugin_hookup (vlib_main_t * vm); + +int hicn_mgmt_node_stats_get (vl_api_hicn_api_node_stats_get_reply_t * rmp); + +#endif /* // __HICN_MGMT_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/params.h b/hicn-plugin/src/params.h new file mode 100755 index 000000000..fc890f602 --- /dev/null +++ b/hicn-plugin/src/params.h @@ -0,0 +1,104 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_PARAM_H__ +#define __HICN_PARAM_H__ + +/* + * Features + */ +#define HICN_FEATURE_CS 1 //1 enable 0 disable + +/* + * Face compile-time parameters + */ +#define HICN_PARAM_FACES_MAX 64 + +/* + * Max length for hICN names + */ +#define HICN_PARAM_HICN_NAME_LEN_MAX 20 //bytes + +// Max next - hops supported in a FIB entry +#define HICN_PARAM_FIB_ENTRY_NHOPS_MAX 5 + +// Default and limit on weight, whatever weight means +#define HICN_PARAM_FIB_ENTRY_NHOP_WGHT_DFLT 0x10 +#define HICN_PARAM_FIB_ENTRY_NHOP_WGHT_MAX 0xff + +/* + * PIT compile-time parameters + */ +#define HICN_PARAM_PIT_ENTRIES_MIN 1024 +#define HICN_PARAM_PIT_ENTRIES_DFLT 1024 * 128 +#define HICN_PARAM_PIT_ENTRIES_MAX 2 * 1024 * 1024 + +// aggregation limit(interest previous hops) +#define HICN_PARAM_PIT_ENTRY_PHOPS_MAX 516 + +// PIT lifetime limits on API override this(in seconds, long -float type) +#define HICN_PARAM_PIT_LIFETIME_BOUND_MIN_SEC 0.100L +#define HICN_PARAM_PIT_LIFETIME_BOUND_MAX_SEC 20.000L + +//PIT lifetime params if not set at API(in mseconds, integer type) +#define HICN_PARAM_PIT_LIFETIME_DFLT_MIN_MS 200 +#define HICN_PARAM_PIT_LIFETIME_DFLT_DFLT_MS 20000 +#define HICN_PARAM_PIT_LIFETIME_DFLT_MAX_MS 20000 + +// Face CS reservation params +#define HICN_PARAM_FACE_MAX_CS_RESERVED 10000 //packets +#define HICN_PARAM_FACE_MIN_CS_RESERVED 0 //packets +#define HICN_PARAM_FACE_DFT_CS_RESERVED 1000 //packets + +/* + * CS compile-time parameters + */ +#define HICN_PARAM_CS_ENTRIES_MIN 0 // can disable CS +#define HICN_PARAM_CS_ENTRIES_DFLT 4 * 1024 +#define HICN_PARAM_CS_ENTRIES_MAX 1024 * 1024 + +#define HICN_PARAM_CS_LRU_DEFAULT (16 * 1024) + +/* CS lifetime defines, in mseconds, integer type */ +#define HICN_PARAM_CS_LIFETIME_MIN 100 +#define HICN_PARAM_CS_LIFETIME_DFLT (5 * 60 * 1000) // 300 seconds +#define HICN_PARAM_CS_LIFETIME_MAX (24 * 3600 * 1000) //24 hours... + +/* CS reserved portion for applications */ +#define HICN_PARAM_CS_RESERVED_APP 30 //% + +/* Cloning parameters */ +/* ip4 */ +#define HICN_IP4_VERSION_HEADER_LENGTH 0x45 +#define HICN_IP4_PROTOCOL IP_PROTOCOL_TCP +#define HICN_IP4_TTL_DEFAULT 128 + +/* ip6 */ +#define IPV6_DEFAULT_VERSION 6 +#define IPV6_DEFAULT_TRAFFIC_CLASS 0 +#define IPV6_DEFAULT_FLOW_LABEL 0 +#define HCIN_IP6_VERSION_TRAFFIC_FLOW (IPV6_DEFAULT_VERSION << 28) | \ + (IPV6_DEFAULT_TRAFFIC_CLASS << 20) | \ + (IPV6_DEFAULT_FLOW_LABEL & 0xfffff) +#define HICN_IP6_PROTOCOL IP_PROTOCOL_TCP +#define HICN_IP6_HOP_LIMIT 0x40 + +#endif /* // __HICN_PARAM_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/parser.h b/hicn-plugin/src/parser.h new file mode 100755 index 000000000..cbc5696ba --- /dev/null +++ b/hicn-plugin/src/parser.h @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_PARSER_H__ +#define __HICN_PARSER_H__ + +#include <vlib/vlib.h> + +#include "hicn.h" +#include "error.h" + + +/* + * Key type codes for header, header tlvs, body tlvs, and child tlvs + */ + +// FIXME(reuse lib struct, no more control ?) +enum hicn_pkt_type_e +{ + HICN_PKT_TYPE_INTEREST = 0, + HICN_PKT_TYPE_CONTENT = 1, +}; + +always_inline int +hicn_interest_parse_pkt (vlib_buffer_t * pkt, hicn_name_t * name, + u16 * namelen, hicn_header_t ** pkt_hdrp, u8 * isv6) +{ + if (pkt == NULL) + return HICN_ERROR_PARSER_PKT_INVAL; + hicn_header_t *pkt_hdr = vlib_buffer_get_current (pkt); + *pkt_hdrp = pkt_hdr; + u8 *ip_pkt = vlib_buffer_get_current (pkt); + u8 version = (pkt_hdr->v4.ip.version_ihl & 0xf0) >> 4; + *isv6 = ((version & 2) >> 1); + u8 ip_proto = (*isv6) * IPPROTO_IPV6; + u8 next_proto_offset = 6 + (1 - *isv6) * 3; + //in the ipv6 header the next header field is at byte 6 + // in the ipv4 header the protocol field is at byte 9 + hicn_type_t type = (hicn_type_t) { { + .l4 = IPPROTO_NONE,.l3 = + IPPROTO_NONE,.l2 = + ip_pkt[next_proto_offset],.l1 = + ip_proto} + }; + hicn_get_buffer (pkt)->type = type; + + hicn_ops_vft[type.l1]->get_interest_name (type, &pkt_hdr->protocol, name); + *namelen = (1 - (*isv6)) * HICN_V4_NAME_LEN + (*isv6) * HICN_V6_NAME_LEN; + + return HICN_ERROR_NONE; +} + +always_inline int +hicn_data_parse_pkt (vlib_buffer_t * pkt, hicn_name_t * name, + u16 * namelen, hicn_header_t ** pkt_hdrp, u8 * isv6) +{ + if (pkt == NULL) + return HICN_ERROR_PARSER_PKT_INVAL; + hicn_header_t *pkt_hdr = vlib_buffer_get_current (pkt); + *pkt_hdrp = pkt_hdr; + *pkt_hdrp = pkt_hdr; + u8 *ip_pkt = vlib_buffer_get_current (pkt); + u8 version = (pkt_hdr->v4.ip.version_ihl & 0xf0) >> 4; + *isv6 = ((version & 2) >> 1); + u8 ip_proto = (*isv6) * IPPROTO_IPV6; + /* + * in the ipv6 header the next header field is at byte 6 in the ipv4 + * header the protocol field is at byte 9 + */ + u8 next_proto_offset = 6 + (1 - *isv6) * 3; + hicn_type_t type = (hicn_type_t) { {.l4 = IPPROTO_NONE,.l3 = + IPPROTO_NONE,.l2 = + ip_pkt[next_proto_offset],.l1 = + ip_proto} + }; + hicn_get_buffer (pkt)->type = type; + hicn_ops_vft[type.l1]->get_data_name (type, &pkt_hdr->protocol, name); + *namelen = (1 - (*isv6)) * HICN_V4_NAME_LEN + (*isv6) * HICN_V6_NAME_LEN; + + return HICN_ERROR_NONE; +} + + +#endif /* // __HICN_PARSER_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/pcs.c b/hicn-plugin/src/pcs.c new file mode 100755 index 000000000..4226291a1 --- /dev/null +++ b/hicn-plugin/src/pcs.c @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdlib.h> +#include <vlib/vlib.h> + +#include "hashtb.h" +#include "pcs.h" +#include "cache_policies/cs_lru.h" + +int +hicn_pit_create (hicn_pit_cs_t * p, u32 num_elems) +{ + int ret = + hicn_hashtb_alloc (&p->pcs_table, num_elems, sizeof (hicn_pcs_entry_t)); + p->pcs_table->ht_flags |= HICN_HASHTB_FLAG_KEY_FMT_NAME; + + p->pcs_pit_count = p->pcs_cs_count = 0; + + p->policy_state.max = + HICN_PARAM_CS_LRU_DEFAULT - + (HICN_PARAM_CS_LRU_DEFAULT * HICN_PARAM_CS_RESERVED_APP / 100); + p->policy_state.count = 0; + p->policy_state.head = p->policy_state.tail = 0; + p->pcs_app_max = HICN_PARAM_CS_LRU_DEFAULT - p->policy_state.max; + + p->policy_vft.hicn_cs_insert = hicn_cs_lru.hicn_cs_insert; + p->policy_vft.hicn_cs_update = hicn_cs_lru.hicn_cs_update; + p->policy_vft.hicn_cs_dequeue = hicn_cs_lru.hicn_cs_dequeue; + p->policy_vft.hicn_cs_delete_get = hicn_cs_lru.hicn_cs_delete_get; + p->policy_vft.hicn_cs_trim = hicn_cs_lru.hicn_cs_trim; + + return (ret); +} + + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/pcs.h b/hicn-plugin/src/pcs.h new file mode 100755 index 000000000..375a7d537 --- /dev/null +++ b/hicn-plugin/src/pcs.h @@ -0,0 +1,836 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_PCS_H__ +#define __HICN_PCS_H__ + +#include "hashtb.h" +#include "face_db.h" +#include "strategy_dpo_manager.h" +#include "error.h" +#include "cache_policies/cs_policy.h" +#include "faces/face.h" +#include "faces/ip/dpo_ip.h" +#include "faces/app/face_prod.h" + +/* The PIT and CS are stored as a union */ +#define HICN_PIT_NULL_TYPE 0 +#define HICN_PIT_TYPE 1 +#define HICN_CS_TYPE 2 + +/* + * Definitions and Forward refs for the time counters we're trying out. + * Counters are maintained by the background process. + */ +#define SEC_MS 1000 +#define HICN_INFRA_FAST_TIMER_SECS 1 +#define HICN_INFRA_FAST_TIMER_MSECS (HICN_INFRA_FAST_TIMER_SECS * SEC_MS) +#define HICN_INFRA_SLOW_TIMER_SECS 60 +#define HICN_INFRA_SLOW_TIMER_MSECS (HICN_INFRA_SLOW_TIMER_SECS * SEC_MS) + +/* + * Max number of incoming (interest) faces supported, for now. Note that + * changing this may change alignment within the PIT struct, so be careful. + */ +typedef struct __attribute__ ((packed)) hicn_pcs_shared_s +{ + + /* Installation/creation time (vpp float units, for now) */ + f64 create_time; + + /* Expiration time (vpp float units, for now) */ + f64 expire_time; + + /* Shared 'flags' octet */ + u8 entry_flags; + + /* Needed to align for the pit or cs portion */ + u8 padding; +} hicn_pcs_shared_t; + +#define HICN_PCS_ENTRY_CS_FLAG 0x01 + +/* + * PIT entry, unioned with a CS entry below + */ +typedef struct __attribute__ ((packed)) hicn_pit_entry_s +{ + + /* Shared size 8 + 8 + 2 = 18B */ + + /* + * Egress next hop (containes the egress face) This id refers to the + * nh + */ + /* choosen in the next_hops array of the dpo */ + /* 18B + 1B = 19B */ + u8 pe_txnh; + + /* Array of faces */ + /* 24B + 32B (8B*4) =56B */ + hicn_face_db_t faces; + +} hicn_pit_entry_t; + +#define HICN_CS_ENTRY_OPAQUE_SIZE HICN_HASH_NODE_APP_DATA_SIZE - 40 + +/* + * CS entry, unioned with a PIT entry below + */ +typedef struct __attribute__ ((packed)) hicn_cs_entry_s +{ + /* 22B + 2B = 24B */ + u16 align; + + /* Packet buffer, if held */ + /* 18B + 4B = 22B */ + u32 cs_pkt_buf; + + /* Ingress face */ + /* 24B + 8B = 32B */ + //Fix alignment issues + union + { + dpo_id_t cs_rxface; + u64 cs_rxface_u64; + }; + + /* Linkage for LRU, in the form of hashtable node indexes */ + /* 32B + 8B = 40B */ + u32 cs_lru_prev; + u32 cs_lru_next; + + /* Reserved for implementing cache policy different than LRU */ + /* 40B + 56B = 96B */ + u8 opaque[HICN_CS_ENTRY_OPAQUE_SIZE]; + + +} __attribute__ ((packed)) hicn_cs_entry_t; + +/* + * Combined PIT/CS entry data structure, embedded in a hashtable entry after + * the common hashtable preamble struct. This MUST fit in the available + * (fixed) space in a hashtable node. + */ +typedef struct hicn_pcs_entry_s +{ + + hicn_pcs_shared_t shared; + + union + { + hicn_pit_entry_t pit; + hicn_cs_entry_t cs; + } u; +} hicn_pcs_entry_t; + + +/* + * Overall PIT/CS table, based on the common hashtable + */ +typedef struct hicn_pit_cs_s +{ + + hicn_hashtb_t *pcs_table; + + /* Counters for PIT/CS sentries */ + u32 pcs_pit_count; + u32 pcs_cs_count; + u32 pcs_cs_dealloc; + u32 pcs_pit_dealloc; + + /* Total size of PCS */ + u32 pcs_size; + + /* Memory reserved for appfaces */ + u32 pcs_app_max; + u32 pcs_app_count; + + hicn_cs_policy_t policy_state; + hicn_cs_policy_vft_t policy_vft; + +} hicn_pit_cs_t; + +/* Functions declarations */ +int hicn_pit_create (hicn_pit_cs_t * p, u32 num_elems); + +always_inline void +hicn_pit_to_cs (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * pcs_entry, hicn_hash_entry_t * hash_entry, + hicn_hash_node_t * node, const hicn_dpo_vft_t * dpo_vft, + dpo_id_t * hicn_dpo_id, dpo_id_t * inface_id, u8 is_appface); + +always_inline void +hicn_pcs_cs_update (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * entry, hicn_hash_node_t * node); + +always_inline void +hicn_pcs_cs_delete (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t ** pcs_entry, hicn_hash_node_t ** node, + hicn_hash_entry_t * hash_entry, + const hicn_dpo_vft_t * dpo_vft, dpo_id_t * hicn_dpo_id); + +always_inline int +hicn_pcs_cs_insert (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * entry, hicn_hash_node_t * node, + hicn_hash_entry_t ** hash_entry, u64 hashval, + u32 * node_id, u8 * dpo_ctx_id, u8 * vft_id, u8 * is_cs, + u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow); + +always_inline int +hicn_pcs_cs_insert_update (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * entry, hicn_hash_node_t * node, + hicn_hash_entry_t ** hash_entry, u64 hashval, + u32 * node_id, u8 * dpo_ctx_id, u8 * vft_id, + u8 * is_cs, u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow); + +always_inline int +hicn_pcs_pit_insert (hicn_pit_cs_t * pitcs, hicn_pcs_entry_t * entry, + hicn_hash_node_t * node, hicn_hash_entry_t ** hash_entry, + u64 hashval, u32 * node_id, u8 * dpo_ctx_id, u8 * vft_id, + u8 * is_cs, u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow); + +always_inline void +hicn_pcs_pit_delete (hicn_pit_cs_t * pitcs, hicn_pcs_entry_t ** pcs_entryp, + hicn_hash_node_t ** node, vlib_main_t * vm, + hicn_hash_entry_t * hash_entry, + const hicn_dpo_vft_t * dpo_vft, dpo_id_t * hicn_dpo_id); + +always_inline int +hicn_pcs_insert (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * entry, hicn_hash_node_t * node, + hicn_hash_entry_t ** hash_entry, u64 hashval, u32 * node_id, + u8 * dpo_ctx_id, u8 * vft_id, u8 * is_cs, u8 * hash_entry_id, + u32 * bucket_id, u8 * bucket_is_overflow); + +always_inline void +hicn_pcs_delete (hicn_pit_cs_t * pitcs, hicn_pcs_entry_t ** pcs_entryp, + hicn_hash_node_t ** node, vlib_main_t * vm, + hicn_hash_entry_t * hash_entry, + const hicn_dpo_vft_t * dpo_vft, dpo_id_t * hicn_dpo_id); + +always_inline void +hicn_pcs_remove_lock (hicn_pit_cs_t * pitcs, hicn_pcs_entry_t ** pcs_entryp, + hicn_hash_node_t ** node, vlib_main_t * vm, + hicn_hash_entry_t * hash_entry, + const hicn_dpo_vft_t * dpo_vft, dpo_id_t * hicn_dpo_id); + +always_inline void +hicn_cs_delete_trimmed (hicn_pit_cs_t * pitcs, hicn_pcs_entry_t ** pcs_entryp, + hicn_hash_entry_t * hash_entry, + hicn_hash_node_t ** node, vlib_main_t * vm); + +/* Function implementation */ +/* Accessor for pit/cs data inside hash table node */ +static inline hicn_pcs_entry_t * +hicn_pit_get_data (hicn_hash_node_t * node) +{ + return (hicn_pcs_entry_t *) (hicn_hashtb_node_data (node)); +} + +/* Init pit/cs data block (usually inside hash table node) */ +static inline void +hicn_pit_init_data (hicn_pcs_entry_t * p) +{ + memset (p, 0, sizeof (hicn_pcs_entry_t)); + hicn_face_bucket_t *face_bkt; + pool_get (hicn_face_bucket_pool, face_bkt); + + p->u.pit.faces.next_bucket = face_bkt - hicn_face_bucket_pool; +} + + + +static inline f64 +hicn_pcs_get_exp_time (f64 cur_time_sec, u64 lifetime_msec) +{ + return (cur_time_sec + ((f64) lifetime_msec) / SEC_MS); +} + +/* + * Configure CS LRU limit. Zero is accepted, means 'no limit', probably not a + * good choice. + */ +static inline void +hicn_pit_set_lru_max (hicn_pit_cs_t * p, u32 limit) +{ + p->policy_state.max = limit; +} + +/* + * Configure CS LRU limit. Zero is accepted, means 'no limit', probably not a + * good choice. + */ +static inline void +hicn_pit_set_lru_app_max (hicn_pit_cs_t * p, u32 limit) +{ + p->pcs_app_max = limit; +} + +/* + * Accessor for PIT interest counter. + */ +static inline u32 +hicn_pit_get_int_count (const hicn_pit_cs_t * pitcs) +{ + return (pitcs->pcs_pit_count); +} + +/* + * Accessor for PIT cs entries counter. + */ +static inline u32 +hicn_pit_get_cs_count (const hicn_pit_cs_t * pitcs) +{ + return (pitcs->pcs_cs_count); +} + +static inline u32 +hicn_pcs_get_ntw_count (const hicn_pit_cs_t * pitcs) +{ + return (pitcs->policy_state.count); +} + +static inline u32 +hicn_pit_get_htb_bucket_count (const hicn_pit_cs_t * pitcs) +{ + return (pitcs->pcs_table->ht_overflow_buckets_used); +} + +static inline int +hicn_cs_enabled (hicn_pit_cs_t * pit) +{ + switch (HICN_FEATURE_CS) + { + case 0: + default: + return (0); + case 1: + return (pit->policy_state.max > 0); + } +} + +/* + * Delete a PIT/CS entry from the hashtable, freeing the hash node struct. + * The caller's pointers are zeroed! If cs_trim is true, entry has already + * been removed from lru list The main purpose of this wrapper is helping + * maintain the per-PIT stats. + */ +always_inline void +hicn_pcs_delete_internal (hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t ** pcs_entryp, + hicn_hash_entry_t * hash_entry, + hicn_hash_node_t ** node, vlib_main_t * vm, + const hicn_dpo_vft_t * dpo_vft, + dpo_id_t * hicn_dpo_id) +{ + hicn_pcs_entry_t *pcs = *pcs_entryp; + + ASSERT (pcs == hicn_hashtb_node_data (*node)); + + if (hash_entry->he_flags & HICN_HASH_ENTRY_FLAG_CS_ENTRY) + { + pitcs->pcs_cs_dealloc++; + + /* Free any associated packet buffer */ + vlib_buffer_free_one (vm, pcs->u.cs.cs_pkt_buf); + pcs->u.cs.cs_pkt_buf = ~0; + ASSERT ((pcs->u.cs.cs_lru_prev == 0) + && (pcs->u.cs.cs_lru_prev == pcs->u.cs.cs_lru_next)); + } + else + { + pitcs->pcs_pit_dealloc++; + dpo_vft->hicn_dpo_unlock_dpo_ctx (hicn_dpo_id); + + /* Flush faces */ + hicn_faces_flush (&(pcs->u.pit.faces)); + } + + hicn_hashtb_delete (pitcs->pcs_table, node, hash_entry->he_msb64); + memset (*pcs_entryp, 0, sizeof (hicn_pcs_entry_t)); + *pcs_entryp = NULL; +} + +/* + * Convert a PIT entry into a CS entry (assumes that the entry is already in + * the hashtable.) This is primarily here to maintain the internal counters. + */ +always_inline void +hicn_pit_to_cs (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * pcs_entry, hicn_hash_entry_t * hash_entry, + hicn_hash_node_t * node, const hicn_dpo_vft_t * dpo_vft, + dpo_id_t * hicn_dpo_id, dpo_id_t * inface_id, u8 is_appface) +{ + + /* + * Different from the insert node. In here we don't need to add a new + * hash entry. + */ + pitcs->pcs_pit_count--; + dpo_vft->hicn_dpo_unlock_dpo_ctx (hicn_dpo_id); + /* Flush faces */ + hicn_faces_flush (&(pcs_entry->u.pit.faces)); + memset (&(pcs_entry->u.cs), ~0, sizeof (hicn_cs_entry_t)); + + hash_entry->he_flags |= HICN_HASH_ENTRY_FLAG_CS_ENTRY; + node->hn_flags |= HICN_HASH_NODE_CS_FLAGS; + pcs_entry->shared.entry_flags |= HICN_PCS_ENTRY_CS_FLAG; + + pcs_entry->u.cs.cs_rxface = *inface_id; + + /* Update the CS according to the policy */ + hicn_cs_policy_t *policy_state; + hicn_cs_policy_vft_t *policy_vft; + + if (is_appface) + { + dpo_id_t *face_dpo = (dpo_id_t *) & (pcs_entry->u.cs.cs_rxface); + hicn_face_t *face = hicn_dpoi_get_from_idx (face_dpo->dpoi_index); + hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data; + policy_state = &prod_face->policy; + policy_vft = &prod_face->policy_vft; + } + else + { + policy_state = &pitcs->policy_state; + policy_vft = &pitcs->policy_vft; + } + + policy_vft->hicn_cs_insert (pitcs, node, pcs_entry, policy_state); + pitcs->pcs_cs_count++; + + if (policy_state->count > policy_state->max) + { + hicn_hash_node_t *node; + hicn_pcs_entry_t *pcs_entry; + hicn_hash_entry_t *hash_entry; + policy_vft->hicn_cs_delete_get (pitcs, policy_state, + &node, &pcs_entry, &hash_entry); + + + /* + * We don't have to decrease the lock (therefore we cannot + * use hicn_pcs_cs_delete function) + */ + policy_vft->hicn_cs_dequeue (pitcs, node, pcs_entry, policy_state); + + hicn_cs_delete_trimmed (pitcs, &pcs_entry, hash_entry, &node, vm); + + /* Update the global CS counter */ + pitcs->pcs_cs_count--; + } +} + +/* Functions specific for PIT or CS */ + +always_inline void +hicn_pcs_cs_update (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * entry, hicn_hash_node_t * node) +{ + hicn_cs_policy_t *policy_state; + hicn_cs_policy_vft_t *policy_vft; + + dpo_id_t *face_dpo = (dpo_id_t *) & (entry->u.cs.cs_rxface); + policy_state = &pitcs->policy_state; + policy_vft = &pitcs->policy_vft; + + if (face_dpo->dpoi_type == hicn_face_ip_type) + { + hicn_face_t *face = hicn_dpoi_get_from_idx (face_dpo->dpoi_index); + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD) + { + hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data; + policy_state = &prod_face->policy; + policy_vft = &prod_face->policy_vft; + } + } + /* Update the CS LRU, moving this item to the head */ + policy_vft->hicn_cs_update (pitcs, node, entry, policy_state); +} + +always_inline void +hicn_pcs_cs_delete (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t ** pcs_entryp, hicn_hash_node_t ** nodep, + hicn_hash_entry_t * hash_entry, + const hicn_dpo_vft_t * dpo_vft, dpo_id_t * hicn_dpo_id) +{ + if (!(hash_entry->he_flags & HICN_HASH_ENTRY_FLAG_DELETED)) + { + hicn_cs_policy_t *policy_state; + hicn_cs_policy_vft_t *policy_vft; + + dpo_id_t *face_dpo = (dpo_id_t *) & ((*pcs_entryp)->u.cs.cs_rxface); + policy_state = &pitcs->policy_state; + policy_vft = &pitcs->policy_vft; + + if (face_dpo->dpoi_type == hicn_face_ip_type) + { + hicn_face_t *face = hicn_dpoi_get_from_idx (face_dpo->dpoi_index); + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD) + { + hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data; + policy_state = &prod_face->policy; + policy_vft = &prod_face->policy_vft; + } + } + policy_vft->hicn_cs_dequeue (pitcs, (*nodep), (*pcs_entryp), + policy_state); + + /* Update the global CS counter */ + pitcs->pcs_cs_count--; + } + hash_entry->locks--; + if (hash_entry->locks == 0) + { + hicn_pcs_delete_internal + (pitcs, pcs_entryp, hash_entry, nodep, vm, dpo_vft, hicn_dpo_id); + } + else + { + hash_entry->he_flags |= HICN_HASH_ENTRY_FLAG_DELETED; + } +} + +always_inline int +hicn_pcs_cs_insert (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * entry, hicn_hash_node_t * node, + hicn_hash_entry_t ** hash_entry, u64 hashval, + u32 * node_id, u8 * dpo_ctx_id, u8 * vft_id, u8 * is_cs, + u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow) +{ + ASSERT (entry == hicn_hashtb_node_data (node)); + + int ret = + hicn_hashtb_insert (pitcs->pcs_table, node, hash_entry, hashval, node_id, + dpo_ctx_id, vft_id, is_cs, hash_entry_id, bucket_id, + bucket_is_overflow); + + if (PREDICT_TRUE (ret == HICN_ERROR_NONE)) + { + hicn_cs_policy_t *policy_state; + hicn_cs_policy_vft_t *policy_vft; + + dpo_id_t *face_dpo = (dpo_id_t *) & (entry->u.cs.cs_rxface); + policy_state = &pitcs->policy_state; + policy_vft = &pitcs->policy_vft; + + if (face_dpo->dpoi_type == hicn_face_ip_type) + { + hicn_face_t *face = hicn_dpoi_get_from_idx (face_dpo->dpoi_index); + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD) + { + hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data; + policy_state = &prod_face->policy; + policy_vft = &prod_face->policy_vft; + } + } + policy_vft->hicn_cs_insert (pitcs, node, entry, policy_state); + pitcs->pcs_cs_count++; + + if (policy_state->count > policy_state->max) + { + hicn_hash_node_t *node; + hicn_pcs_entry_t *pcs_entry; + hicn_hash_entry_t *hash_entry; + policy_vft->hicn_cs_delete_get (pitcs, policy_state, + &node, &pcs_entry, &hash_entry); + + hicn_pcs_cs_delete (vm, pitcs, &pcs_entry, &node, hash_entry, NULL, + NULL); + } + } + return ret; +} + +/* + * Insert CS entry into the hashtable The main purpose of this wrapper is + * helping maintain the per-PIT stats. + */ +always_inline int +hicn_pcs_cs_insert_update (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * entry, hicn_hash_node_t * node, + hicn_hash_entry_t ** hash_entry, u64 hashval, + u32 * node_id, u8 * dpo_ctx_id, u8 * vft_id, + u8 * is_cs, u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow) +{ + int ret; + + ASSERT (entry == hicn_hashtb_node_data (node)); + + ret = + hicn_pcs_cs_insert (vm, pitcs, entry, node, hash_entry, hashval, node_id, + dpo_ctx_id, vft_id, is_cs, hash_entry_id, bucket_id, + bucket_is_overflow); + + /* A content already exists in CS with the same name */ + if (ret == HICN_ERROR_HASHTB_EXIST) + { + /* Update the entry */ + hicn_hash_node_t *existing_node = + hicn_hashtb_node_from_idx (pitcs->pcs_table, *node_id); + hicn_pcs_entry_t *pitp = hicn_pit_get_data (existing_node); + + /* Free associated packet buffer and update counter */ + pitcs->pcs_cs_dealloc++; + vlib_buffer_free_one (vm, pitp->u.cs.cs_pkt_buf); + + pitp->shared.create_time = entry->shared.create_time; + pitp->shared.expire_time = entry->shared.expire_time; + pitp->u.cs.cs_pkt_buf = entry->u.cs.cs_pkt_buf; + hicn_pcs_cs_update (vm, pitcs, pitp, existing_node); + } + return (ret); +} + +/* + * Insert PIT entry into the hashtable The main purpose of this wrapper is + * helping maintain the per-PIT stats. + */ +always_inline int +hicn_pcs_pit_insert (hicn_pit_cs_t * pitcs, hicn_pcs_entry_t * entry, + hicn_hash_node_t * node, hicn_hash_entry_t ** hash_entry, + u64 hashval, u32 * node_id, u8 * dpo_ctx_id, u8 * vft_id, + u8 * is_cs, u8 * hash_entry_id, u32 * bucket_id, + u8 * bucket_is_overflow) +{ + ASSERT (entry == hicn_hashtb_node_data (node)); + + int ret = + hicn_hashtb_insert (pitcs->pcs_table, node, hash_entry, hashval, node_id, + dpo_ctx_id, vft_id, is_cs, hash_entry_id, bucket_id, + bucket_is_overflow); + + if (PREDICT_TRUE (ret == HICN_ERROR_NONE)) + pitcs->pcs_pit_count++; + + return ret; +} + +always_inline void +hicn_pcs_pit_delete (hicn_pit_cs_t * pitcs, hicn_pcs_entry_t ** pcs_entryp, + hicn_hash_node_t ** node, vlib_main_t * vm, + hicn_hash_entry_t * hash_entry, + const hicn_dpo_vft_t * dpo_vft, dpo_id_t * hicn_dpo_id) +{ + hash_entry->locks--; + pitcs->pcs_pit_count--; + if (hash_entry->locks == 0) + { + hicn_pcs_delete_internal + (pitcs, pcs_entryp, hash_entry, node, vm, dpo_vft, hicn_dpo_id); + } + else + { + hash_entry->he_flags |= HICN_HASH_ENTRY_FLAG_DELETED; + } +} + + +/* Generic functions for PIT/CS */ + +/* + * Insert PIT/CS entry into the hashtable The main purpose of this wrapper is + * helping maintain the per-PIT stats. + */ +always_inline int +hicn_pcs_insert (vlib_main_t * vm, hicn_pit_cs_t * pitcs, + hicn_pcs_entry_t * entry, hicn_hash_node_t * node, + hicn_hash_entry_t ** hash_entry, u64 hashval, u32 * node_id, + u8 * dpo_ctx_id, u8 * vft_id, u8 * is_cs, u8 * hash_entry_id, + u32 * bucket_id, u8 * bucket_is_overflow) +{ + int ret; + + if ((*hash_entry)->he_flags & HICN_HASH_ENTRY_FLAG_CS_ENTRY) + { + ret = + hicn_pcs_cs_insert (vm, pitcs, entry, node, hash_entry, hashval, + node_id, dpo_ctx_id, vft_id, is_cs, hash_entry_id, + bucket_id, bucket_is_overflow); + } + else + { + ret = + hicn_pcs_pit_insert (pitcs, entry, node, hash_entry, hashval, node_id, + dpo_ctx_id, vft_id, is_cs, hash_entry_id, + bucket_id, bucket_is_overflow); + } + + return (ret); +} + + +/* + * Delete entry if there are no pending lock on the entry, otherwise mark it + * as to delete. + */ +always_inline void +hicn_pcs_delete (hicn_pit_cs_t * pitcs, hicn_pcs_entry_t ** pcs_entryp, + hicn_hash_node_t ** nodep, vlib_main_t * vm, + hicn_hash_entry_t * hash_entry, + const hicn_dpo_vft_t * dpo_vft, dpo_id_t * hicn_dpo_id) +{ + /* + * If the entry has already been marked as deleted, it has already + * been dequeue + */ + if (hash_entry->he_flags & HICN_HASH_ENTRY_FLAG_CS_ENTRY) + { + hicn_pcs_cs_delete (vm, pitcs, pcs_entryp, nodep, hash_entry, + dpo_vft, hicn_dpo_id); + } + else + { + hicn_pcs_pit_delete (pitcs, pcs_entryp, nodep, vm, + hash_entry, dpo_vft, hicn_dpo_id); + } +} + +/* + * Remove a lock in the entry and delete it if there are no pending lock and + * the entry is marked as to be deleted + */ +always_inline void +hicn_pcs_remove_lock (hicn_pit_cs_t * pitcs, hicn_pcs_entry_t ** pcs_entryp, + hicn_hash_node_t ** node, vlib_main_t * vm, + hicn_hash_entry_t * hash_entry, + const hicn_dpo_vft_t * dpo_vft, dpo_id_t * hicn_dpo_id) +{ + hash_entry->locks--; + if (hash_entry->locks == 0 + && (hash_entry->he_flags & HICN_HASH_ENTRY_FLAG_DELETED)) + { + hicn_pcs_delete_internal + (pitcs, pcs_entryp, hash_entry, node, vm, dpo_vft, hicn_dpo_id); + } +} + +/* + * Delete entry which has already been bulk-removed from lru list + */ +always_inline void +hicn_cs_delete_trimmed (hicn_pit_cs_t * pitcs, hicn_pcs_entry_t ** pcs_entryp, + hicn_hash_entry_t * hash_entry, + hicn_hash_node_t ** node, vlib_main_t * vm) +{ + + + if (hash_entry->locks == 0) + { + const hicn_dpo_vft_t *dpo_vft = hicn_dpo_get_vft (hash_entry->vft_id); + dpo_id_t hicn_dpo_id = + { dpo_vft->hicn_dpo_get_type (), 0, 0, hash_entry->dpo_ctx_id }; + + hicn_pcs_delete_internal + (pitcs, pcs_entryp, hash_entry, node, vm, dpo_vft, &hicn_dpo_id); + } + else + { + hash_entry->he_flags |= HICN_HASH_ENTRY_FLAG_DELETED; + } +} + +/* + * wrappable counter math (assumed uint16_t): return sum of addends + */ +always_inline u16 +hicn_infra_seq16_sum (u16 addend1, u16 addend2) +{ + return (addend1 + addend2); +} + +/* + * for comparing wrapping numbers, return lt,eq,gt 0 for a lt,eq,gt b + */ +always_inline int +hicn_infra_seq16_cmp (u16 a, u16 b) +{ + return ((int16_t) (a - b)); +} + +/* + * below are wrappers for lt, le, gt, ge seq16 comparators + */ +always_inline int +hicn_infra_seq16_lt (u16 a, u16 b) +{ + return (hicn_infra_seq16_cmp (a, b) < 0); +} + +always_inline int +hicn_infra_seq16_le (u16 a, u16 b) +{ + return (hicn_infra_seq16_cmp (a, b) <= 0); +} + +always_inline int +hicn_infra_seq16_gt (u16 a, u16 b) +{ + return (hicn_infra_seq16_cmp (a, b) > 0); +} + +always_inline int +hicn_infra_seq16_ge (u16 a, u16 b) +{ + return (hicn_infra_seq16_cmp (a, b) >= 0); +} + + +extern u16 hicn_infra_fast_timer; /* Counts at 1 second intervals */ +extern u16 hicn_infra_slow_timer; /* Counts at 1 minute intervals */ + +/* + * Utilities to convert lifetime into expiry time based on compressed clock, + * suitable for the opportunistic hashtable entry timeout processing. + */ + +//convert time in msec to time in clicks +always_inline u16 +hicn_infra_ms2clicks (u64 time_ms, u64 ms_per_click) +{ + f64 time_clicks = + ((f64) (time_ms + ms_per_click - 1)) / ((f64) ms_per_click); + return ((u16) time_clicks); +} + +always_inline u16 +hicn_infra_get_fast_exp_time (u64 lifetime_ms) +{ + u16 lifetime_clicks = + hicn_infra_ms2clicks (lifetime_ms, HICN_INFRA_FAST_TIMER_MSECS); + return (hicn_infra_seq16_sum (hicn_infra_fast_timer, lifetime_clicks)); +} + +always_inline u16 +hicn_infra_get_slow_exp_time (u64 lifetime_ms) +{ + u16 lifetime_clicks = + hicn_infra_ms2clicks (lifetime_ms, HICN_INFRA_SLOW_TIMER_MSECS); + return (hicn_infra_seq16_sum (hicn_infra_slow_timer, lifetime_clicks)); +} + +#endif /* // __HICN_PCS_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/pg.c b/hicn-plugin/src/pg.c new file mode 100755 index 000000000..643aff2be --- /dev/null +++ b/hicn-plugin/src/pg.c @@ -0,0 +1,1147 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/pg/pg.h> +#include <vnet/ip/ip.h> +#include <vnet/ethernet/ethernet.h> + +#include "hicn.h" +#include "pg.h" +#include "parser.h" +#include "infra.h" + +/* Registration struct for a graph node */ +vlib_node_registration_t hicn_pg_interest_node; +vlib_node_registration_t hicn_pg_data_node; + +/* Stats, which end up called "error" even though they aren't... */ +#define foreach_hicnpg_error \ + _(PROCESSED, "hICN PG packets processed") \ + _(DROPPED, "hICN PG packets dropped") \ + _(INTEREST_MSGS_GENERATED, "hICN PG Interests generated") \ + _(CONTENT_MSGS_RECEIVED, "hICN PG Content msgs received") + +typedef enum +{ +#define _(sym,str) HICNPG_ERROR_##sym, + foreach_hicnpg_error +#undef _ + HICNPG_N_ERROR, +} hicnpg_error_t; + +static char *hicnpg_error_strings[] = { +#define _(sym,string) string, + foreach_hicnpg_error +#undef _ +}; + +/* + * Next graph nodes, which reference the list in the actual registration + * block below + */ +typedef enum +{ + HICNPG_INTEREST_NEXT_V4_LOOKUP, + HICNPG_INTEREST_NEXT_V6_LOOKUP, + HICNPG_INTEREST_NEXT_IFACE_IP4_INPUT, + HICNPG_INTEREST_NEXT_IFACE_IP6_INPUT, + HICNPG_INTEREST_NEXT_DROP, + HICNPG_N_NEXT, +} hicnpg_interest_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; + u16 msg_type; +} hicnpg_trace_t; + +hicnpg_main_t hicnpg_main = { + .index = (u32) 0, + .index_ifaces = (u32) 1, + .max_seq_number = (u32) ~ 0, + .interest_lifetime = 4, + .n_flows = (u32) 0, + .n_ifaces = (u32) 1, + .hicn_underneath = 0 +}; + +hicnpg_server_main_t hicnpg_server_main = { + .node_index = 0, + .hicn_underneath = 0 +}; + +/* packet trace format function */ +static u8 * +format_hicnpg_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicnpg_trace_t *t = va_arg (*args, hicnpg_trace_t *); + + s = format (s, "HICNPG: pkt: %d, msg %d, sw_if_index %d, next index %d", + (int) t->pkt_type, (int) t->msg_type, + t->sw_if_index, t->next_index); + return (s); +} + +always_inline void +hicn_rewrite_interestv4 (vlib_main_t * vm, vlib_buffer_t * b0, u32 seq_number, + u16 lifetime, u32 next_flow, u32 iface); + +always_inline void +hicn_rewrite_interestv6 (vlib_main_t * vm, vlib_buffer_t * b0, u32 seq_number, + u16 lifetime, u32 next_flow, u32 iface); + +always_inline void +convert_interest_to_data_v4 (vlib_main_t * vm, vlib_buffer_t * b0, + vlib_buffer_t * rb, u32 bi0); + +always_inline void +convert_interest_to_data_v6 (vlib_main_t * vm, vlib_buffer_t * b0, + vlib_buffer_t * rb, u32 bi0); + +always_inline void +calculate_tcp_checksum_v4 (vlib_main_t * vm, vlib_buffer_t * b0); + +always_inline void +calculate_tcp_checksum_v6 (vlib_main_t * vm, vlib_buffer_t * b0); +/* + * Node function for the icn packet-generator client. The goal here is to + * manipulate/tweak a stream of packets that have been injected by the vpp + * packet generator to generate icn request traffic. + */ +static uword +hicnpg_client_interest_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next; + hicnpg_interest_next_t next_index; + u32 pkts_processed = 0, pkts_dropped = 0; + u32 interest_msgs_generated = 0; + u32 bi0, bi1; + vlib_buffer_t *b0, *b1; + u8 pkt_type0 = 0, pkt_type1 = 0; + u16 msg_type0 = 0, msg_type1 = 0; + hicn_header_t *hicn0 = NULL, *hicn1 = NULL; + hicn_name_t name0, name1; + u16 namelen0, namelen1; + hicnpg_main_t *hpgm = &hicnpg_main; + int iface = 0; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + u32 next0 = HICNPG_INTEREST_NEXT_DROP; + u32 next1 = HICNPG_INTEREST_NEXT_DROP; + u32 sw_if_index0 = ~0, sw_if_index1 = ~0; + u8 isv6_0; + u8 isv6_1; + + /* Prefetch next iteration. */ + { + vlib_buffer_t *p2, *p3; + + p2 = vlib_get_buffer (vm, from[2]); + p3 = vlib_get_buffer (vm, from[3]); + + vlib_prefetch_buffer_header (p2, LOAD); + vlib_prefetch_buffer_header (p3, LOAD); + + CLIB_PREFETCH (p2->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); + CLIB_PREFETCH (p3->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); + } + + /* + * speculatively enqueue b0 and b1 to the current + * next frame + */ + to_next[0] = bi0 = from[0]; + to_next[1] = bi1 = from[1]; + from += 2; + to_next += 2; + n_left_from -= 2; + n_left_to_next -= 2; + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; + + /* Check icn packets, locate names */ + if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0, &isv6_0) + == HICN_ERROR_NONE) + { + /* this node grabs only interests */ + + /* Increment the appropriate message counter */ + interest_msgs_generated++; + + iface = (hpgm->index_ifaces % hpgm->n_ifaces); + /* Rewrite and send */ + isv6_0 ? hicn_rewrite_interestv6 (vm, b0, + (hpgm->index / + hpgm->n_flows) % + hpgm->max_seq_number, + hpgm->interest_lifetime, + hpgm->index % hpgm->n_flows, + iface) : + hicn_rewrite_interestv4 (vm, b0, + (hpgm->index / hpgm->n_flows) % + hpgm->max_seq_number, + hpgm->interest_lifetime, + hpgm->index % hpgm->n_flows, iface); + + hpgm->index_ifaces++; + if (iface == (hpgm->n_ifaces - 1)) + hpgm->index++; + + next0 = + isv6_0 ? HICNPG_INTEREST_NEXT_V6_LOOKUP : + HICNPG_INTEREST_NEXT_V4_LOOKUP; + next0 += 2 * hpgm->hicn_underneath; + } + if (hicn_interest_parse_pkt (b1, &name1, &namelen1, &hicn1, &isv6_1) + == HICN_ERROR_NONE) + { + /* this node grabs only interests */ + + /* Increment the appropriate message counter */ + interest_msgs_generated++; + + iface = (hpgm->index_ifaces % hpgm->n_ifaces); + /* Rewrite and send */ + isv6_1 ? hicn_rewrite_interestv6 (vm, b1, + (hpgm->index / + hpgm->n_flows) % + hpgm->max_seq_number, + hpgm->interest_lifetime, + hpgm->index % hpgm->n_flows, + iface) : + hicn_rewrite_interestv4 (vm, b1, + (hpgm->index / hpgm->n_flows) % + hpgm->max_seq_number, + hpgm->interest_lifetime, + hpgm->index % hpgm->n_flows, iface); + + hpgm->index_ifaces++; + if (iface == (hpgm->n_ifaces - 1)) + hpgm->index++; + + next1 = + isv6_1 ? HICNPG_INTEREST_NEXT_V6_LOOKUP : + HICNPG_INTEREST_NEXT_V4_LOOKUP; + next1 += 2 * hpgm->hicn_underneath; + } + /* Send pkt to next node */ + vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0; + vnet_buffer (b1)->sw_if_index[VLIB_TX] = ~0; + + pkts_processed += 2; + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) + { + if (b0->flags & VLIB_BUFFER_IS_TRACED) + { + hicnpg_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = pkt_type0; + t->msg_type = msg_type0; + t->sw_if_index = sw_if_index0; + t->next_index = next0; + } + if (b1->flags & VLIB_BUFFER_IS_TRACED) + { + hicnpg_trace_t *t = + vlib_add_trace (vm, node, b1, sizeof (*t)); + t->pkt_type = pkt_type1; + t->msg_type = msg_type1; + t->sw_if_index = sw_if_index1; + t->next_index = next1; + } + } + if (next0 == HICNPG_INTEREST_NEXT_DROP) + { + pkts_dropped++; + } + if (next1 == HICNPG_INTEREST_NEXT_DROP) + { + pkts_dropped++; + } + /* + * verify speculative enqueues, maybe switch current + * next frame + */ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, + to_next, n_left_to_next, + bi0, bi1, next0, next1); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 next0 = HICNPG_INTEREST_NEXT_DROP; + u32 sw_if_index0; + u8 isv6_0; + + /* speculatively enqueue b0 to the current next frame */ + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + + /* Check icn packets, locate names */ + if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0, &isv6_0) + == HICN_ERROR_NONE) + { + /* this node grabs only interests */ + + /* Increment the appropriate message counter */ + interest_msgs_generated++; + + iface = (hpgm->index_ifaces % hpgm->n_ifaces); + + /* Rewrite and send */ + isv6_0 ? hicn_rewrite_interestv6 (vm, b0, + (hpgm->index / + hpgm->n_flows) % + hpgm->max_seq_number, + hpgm->interest_lifetime, + hpgm->index % hpgm->n_flows, + iface) : + hicn_rewrite_interestv4 (vm, b0, + (hpgm->index / hpgm->n_flows) % + hpgm->max_seq_number, + hpgm->interest_lifetime, + hpgm->index % hpgm->n_flows, iface); + + hpgm->index_ifaces++; + if (iface == (hpgm->n_ifaces - 1)) + hpgm->index++; + + next0 = + isv6_0 ? HICNPG_INTEREST_NEXT_V6_LOOKUP : + HICNPG_INTEREST_NEXT_V4_LOOKUP; + next0 += 2 * hpgm->hicn_underneath; + } + /* Send pkt to ip lookup */ + vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0; + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) + && (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicnpg_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = pkt_type0; + t->msg_type = msg_type0; + t->sw_if_index = sw_if_index0; + t->next_index = next0; + } + pkts_processed += 1; + + if (next0 == HICNPG_INTEREST_NEXT_DROP) + { + pkts_dropped++; + } + /* + * verify speculative enqueue, maybe switch current + * next frame + */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, hicn_pg_interest_node.index, + HICNPG_ERROR_PROCESSED, pkts_processed); + vlib_node_increment_counter (vm, hicn_pg_interest_node.index, + HICNPG_ERROR_DROPPED, pkts_dropped); + vlib_node_increment_counter (vm, hicn_pg_interest_node.index, + HICNPG_ERROR_INTEREST_MSGS_GENERATED, + interest_msgs_generated); + + return (frame->n_vectors); +} + +void +hicn_rewrite_interestv4 (vlib_main_t * vm, vlib_buffer_t * b0, u32 seq_number, + u16 interest_lifetime, u32 next_flow, u32 iface) +{ + hicn_header_t *h0 = vlib_buffer_get_current (b0); + + /* Generate the right src and dst corresponding to flow and iface */ + ip46_address_t src_addr = { + .ip4 = hicnpg_main.pgen_clt_src_addr.ip4, + }; + hicn_name_t dst_name = { + .ip4.prefix_as_ip4 = hicnpg_main.pgen_clt_hicn_name.ip4, + .ip4.suffix = seq_number, + }; + + src_addr.ip4.as_u32 += clib_host_to_net_u32 (iface); + dst_name.ip4.prefix_as_ip4.as_u32 += clib_net_to_host_u32 (next_flow); + + /* Update locator and name */ + hicn_type_t type = hicn_get_buffer (b0)->type; + HICN_OPS4->set_interest_locator (type, &h0->protocol, &src_addr); + HICN_OPS4->set_interest_name (type, &h0->protocol, &dst_name); + + /* Update lifetime (currently L4 checksum is not updated) */ + HICN_OPS4->set_lifetime (type, &h0->protocol, interest_lifetime); + + /* Update checksums */ + HICN_OPS4->update_checksums (type, &h0->protocol, 0, 0); +} + +/** + * @brief Rewrite the IPv6 header as the next generated packet + * + * Set up a name prefix + * - etiher generate interest in which the name varies only after the prefix + * (inc : seq_number), then the flow acts on the prefix (CHECK) + * seq_number => TCP, FLOW => + * + * SRC : pgen_clt_src_addr.ip6 DST = generate name (pgen_clt_hicn_name.ip6) + * ffff:ffff:ffff:ffff ffff:ffff:ffff:ffff + * \__/ \__/ + * +iface + flow + * Source is used to emulate different consumers. + * FIXME iface is ill-named, better name it consumer id + * Destination is used to iterate on the content. + */ +void +hicn_rewrite_interestv6 (vlib_main_t * vm, vlib_buffer_t * b0, u32 seq_number, + u16 interest_lifetime, u32 next_flow, u32 iface) +{ + hicn_header_t *h0 = vlib_buffer_get_current (b0); + + /* Generate the right src and dst corresponding to flow and iface */ + ip46_address_t src_addr = { + .ip6 = hicnpg_main.pgen_clt_src_addr.ip6, + }; + hicn_name_t dst_name = { + .ip6.prefix_as_ip6 = hicnpg_main.pgen_clt_hicn_name.ip6, + .ip6.suffix = seq_number, + }; + src_addr.ip6.as_u32[3] += clib_host_to_net_u32 (iface); + dst_name.ip6.prefix_as_ip6.as_u32[3] += clib_net_to_host_u32 (next_flow); + + /* Update locator and name */ + hicn_type_t type = hicn_get_buffer (b0)->type; + HICN_OPS6->set_interest_locator (type, &h0->protocol, &src_addr); + HICN_OPS6->set_interest_name (type, &h0->protocol, &dst_name); + + /* Update lifetime */ + HICN_OPS6->set_lifetime (type, &h0->protocol, interest_lifetime); + + /* Update checksums */ + calculate_tcp_checksum_v6 (vm, b0); +} + + + +void +calculate_tcp_checksum_v4 (vlib_main_t * vm, vlib_buffer_t * b0) +{ + ip4_header_t *ip0; + tcp_header_t *tcp0; + ip_csum_t sum0; + u32 tcp_len0; + + ip0 = (ip4_header_t *) (vlib_buffer_get_current (b0)); + tcp0 = + (tcp_header_t *) (vlib_buffer_get_current (b0) + sizeof (ip4_header_t)); + tcp_len0 = clib_net_to_host_u16 (ip0->length) - sizeof (ip4_header_t); + + /* Initialize checksum with header. */ + if (BITS (sum0) == 32) + { + sum0 = clib_mem_unaligned (&ip0->src_address, u32); + sum0 = + ip_csum_with_carry (sum0, + clib_mem_unaligned (&ip0->dst_address, u32)); + } + else + sum0 = clib_mem_unaligned (&ip0->src_address, u64); + + sum0 = ip_csum_with_carry + (sum0, clib_host_to_net_u32 (tcp_len0 + (ip0->protocol << 16))); + + /* Invalidate possibly old checksum. */ + tcp0->checksum = 0; + + u32 tcp_offset = sizeof (ip4_header_t); + sum0 = ip_incremental_checksum_buffer (vm, b0, tcp_offset, tcp_len0, sum0); + + tcp0->checksum = ~ip_csum_fold (sum0); +} + +void +calculate_tcp_checksum_v6 (vlib_main_t * vm, vlib_buffer_t * b0) +{ + ip6_header_t *ip0; + tcp_header_t *tcp0; + ip_csum_t sum0; + u32 tcp_len0; + + ip0 = (ip6_header_t *) (vlib_buffer_get_current (b0)); + tcp0 = + (tcp_header_t *) (vlib_buffer_get_current (b0) + sizeof (ip6_header_t)); + tcp_len0 = clib_net_to_host_u16 (ip0->payload_length); + + /* Initialize checksum with header. */ + if (BITS (sum0) == 32) + { + sum0 = clib_mem_unaligned (&ip0->src_address, u32); + sum0 = + ip_csum_with_carry (sum0, + clib_mem_unaligned (&ip0->dst_address, u32)); + } + else + sum0 = clib_mem_unaligned (&ip0->src_address, u64); + + sum0 = ip_csum_with_carry + (sum0, clib_host_to_net_u32 (tcp_len0 + (ip0->protocol << 16))); + + /* Invalidate possibly old checksum. */ + tcp0->checksum = 0; + + u32 tcp_offset = sizeof (ip6_header_t); + sum0 = ip_incremental_checksum_buffer (vm, b0, tcp_offset, tcp_len0, sum0); + + tcp0->checksum = ~ip_csum_fold (sum0); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_pg_interest_node) ={ + .function = hicnpg_client_interest_node_fn, + .name = "hicnpg-interest", + .vector_size = sizeof(u32), + .format_trace = format_hicnpg_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicnpg_error_strings), + .error_strings = hicnpg_error_strings, + .n_next_nodes = HICNPG_N_NEXT, + .next_nodes = + { + [HICNPG_INTEREST_NEXT_V4_LOOKUP] = "ip4-lookup", + [HICNPG_INTEREST_NEXT_V6_LOOKUP] = "ip6-lookup", + [HICNPG_INTEREST_NEXT_IFACE_IP4_INPUT] = "hicn-iface-ip4-input", + [HICNPG_INTEREST_NEXT_IFACE_IP6_INPUT] = "hicn-iface-ip6-input", + [HICNPG_INTEREST_NEXT_DROP] = "error-drop" + }, +}; +/* *INDENT-ON* */ + +/* + * Next graph nodes, which reference the list in the actual registration + * block below + */ +typedef enum +{ + HICNPG_DATA_NEXT_DROP, + HICNPG_DATA_N_NEXT, +} hicnpg_data_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; + u16 msg_type; +} icnpg_data_trace_t; + +/* packet trace format function */ +static u8 * +format_hicnpg_data_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicnpg_trace_t *t = va_arg (*args, hicnpg_trace_t *); + + s = format (s, "HICNPG: pkt: %d, msg %d, sw_if_index %d, next index %d", + (int) t->pkt_type, (int) t->msg_type, + t->sw_if_index, t->next_index); + return (s); +} + + +/* + * Node function for the icn packet-generator client. The goal here is to + * manipulate/tweak a stream of packets that have been injected by the vpp + * packet generator to generate icn request traffic. + */ +static uword +hicnpg_client_data_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next; + hicnpg_data_next_t next_index; + u32 pkts_processed = 0; + u32 content_msgs_received = 0; + u32 bi0, bi1; + vlib_buffer_t *b0, *b1; + u8 pkt_type0 = 0, pkt_type1 = 0; + u16 msg_type0 = 1, msg_type1 = 1; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + u32 next0 = HICNPG_DATA_NEXT_DROP; + u32 next1 = HICNPG_DATA_NEXT_DROP; + u32 sw_if_index0, sw_if_index1; + + /* Prefetch next iteration. */ + { + vlib_buffer_t *p2, *p3; + + p2 = vlib_get_buffer (vm, from[2]); + p3 = vlib_get_buffer (vm, from[3]); + + vlib_prefetch_buffer_header (p2, LOAD); + vlib_prefetch_buffer_header (p3, LOAD); + + CLIB_PREFETCH (p2->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); + CLIB_PREFETCH (p3->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); + } + + /* + * speculatively enqueue b0 and b1 to the current + * next frame + */ + to_next[0] = bi0 = from[0]; + to_next[1] = bi1 = from[1]; + from += 2; + to_next += 2; + n_left_from -= 2; + n_left_to_next -= 2; + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; + + /* Increment a counter */ + content_msgs_received += 2; + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) + { + if (b0->flags & VLIB_BUFFER_IS_TRACED) + { + icnpg_data_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = pkt_type0; + t->msg_type = msg_type0; + t->sw_if_index = sw_if_index0; + t->next_index = next0; + } + if (b1->flags & VLIB_BUFFER_IS_TRACED) + { + icnpg_data_trace_t *t = + vlib_add_trace (vm, node, b1, sizeof (*t)); + t->pkt_type = pkt_type1; + t->msg_type = msg_type1; + t->sw_if_index = sw_if_index1; + t->next_index = next1; + } + } + pkts_processed += 2; + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 next0 = HICNPG_DATA_NEXT_DROP; + u32 sw_if_index0; + + /* speculatively enqueue b0 to the current next frame */ + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + + /* Increment a counter */ + content_msgs_received++; + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) + && (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + icnpg_data_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = pkt_type0; + t->msg_type = msg_type0; + t->sw_if_index = sw_if_index0; + t->next_index = next0; + } + pkts_processed++; + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, hicn_pg_data_node.index, + HICNPG_ERROR_PROCESSED, pkts_processed); + vlib_node_increment_counter (vm, hicn_pg_data_node.index, + HICNPG_ERROR_CONTENT_MSGS_RECEIVED, + content_msgs_received); + return (frame->n_vectors); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_pg_data_node) = +{ + .function = hicnpg_client_data_node_fn, + .name = "hicnpg-data", + .vector_size = sizeof(u32), + .format_trace = format_hicnpg_data_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicnpg_error_strings), + .error_strings = hicnpg_error_strings, + .n_next_nodes = HICNPG_DATA_N_NEXT, + .next_nodes = + { + [HICNPG_DATA_NEXT_DROP] = "error-drop" + }, +}; +/* *INDENT-ON* */ + +/* + * End of packet-generator client node + */ + +/* + * Beginning of packet-generation server node + */ + +/* Registration struct for a graph node */ +vlib_node_registration_t hicn_pg_server_node; + +/* Stats, which end up called "error" even though they aren't... */ +#define foreach_icnpg_server_error \ +_(PROCESSED, "hICN PG Server packets processed") \ +_(DROPPED, "hICN PG Server packets dropped") + +typedef enum +{ +#define _(sym,str) HICNPG_SERVER_ERROR_##sym, + foreach_icnpg_server_error +#undef _ + HICNPG_SERVER_N_ERROR, +} icnpg_server_error_t; + +static char *icnpg_server_error_strings[] = { +#define _(sym,string) string, + foreach_icnpg_server_error +#undef _ +}; + +/* + * Next graph nodes, which reference the list in the actual registration + * block below + */ +typedef enum +{ + HICNPG_SERVER_NEXT_V4_LOOKUP, + HICNPG_SERVER_NEXT_V6_LOOKUP, + HICNPG_SERVER_NEXT_FACE_IP4_INPUT, + HICNPG_SERVER_NEXT_FACE_IP6_INPUT, + HICNPG_SERVER_NEXT_DROP, + HICNPG_SERVER_N_NEXT, +} icnpg_server_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; + u16 msg_type; +} hicnpg_server_trace_t; + +/* packet trace format function */ +static u8 * +format_icnpg_server_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicnpg_server_trace_t *t = va_arg (*args, hicnpg_server_trace_t *); + + s = + format (s, + "HICNPG SERVER: pkt: %d, msg %d, sw_if_index %d, next index %d", + (int) t->pkt_type, (int) t->msg_type, t->sw_if_index, + t->next_index); + return (s); +} + +/* + * Node function for the icn packet-generator server. + */ +static uword +hicnpg_node_server_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next; + icnpg_server_next_t next_index; + u32 pkts_processed = 0, pkts_dropped = 0; + u32 bi0, bi1; + vlib_buffer_t *b0, *b1; + u8 pkt_type0 = 0, pkt_type1 = 0; + u16 msg_type0 = 0, msg_type1 = 0; + hicn_header_t *hicn0 = NULL, *hicn1 = NULL; + hicn_name_t name0, name1; + u16 namelen0, namelen1; + + hicnpg_server_main_t *hpgsm = &hicnpg_server_main; + + from = vlib_frame_vector_args (frame); + + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + u32 next0 = HICNPG_SERVER_NEXT_DROP; + u32 next1 = HICNPG_SERVER_NEXT_DROP; + u8 isv6_0 = 0; + u8 isv6_1 = 0; + u32 sw_if_index0, sw_if_index1; + + /* Prefetch next iteration. */ + { + vlib_buffer_t *p2, *p3; + + p2 = vlib_get_buffer (vm, from[2]); + p3 = vlib_get_buffer (vm, from[3]); + + vlib_prefetch_buffer_header (p2, LOAD); + vlib_prefetch_buffer_header (p3, LOAD); + + CLIB_PREFETCH (p2->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); + CLIB_PREFETCH (p3->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); + } + + /* + * speculatively enqueue b0 and b1 to the current + * next frame + */ + to_next[0] = bi0 = from[0]; + to_next[1] = bi1 = from[1]; + from += 2; + to_next += 2; + n_left_from -= 2; + n_left_to_next -= 2; + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; + + if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0, &isv6_0) + == HICN_ERROR_NONE) + { + /* this node grabs only interests */ + vlib_buffer_t *rb = NULL; + rb = vlib_get_buffer (vm, hpgsm->pgen_svr_buffer_idx); + + isv6_0 ? convert_interest_to_data_v6 (vm, b0, rb, + bi0) : + convert_interest_to_data_v4 (vm, b0, rb, bi0); + + next0 = + isv6_0 ? HICNPG_SERVER_NEXT_V6_LOOKUP : + HICNPG_SERVER_NEXT_V4_LOOKUP; + /* if hicn_underneath ,the following will results as next0 = HICNPG_SERVER_NEXT_DATA_LOOKUP */ + next0 += 2 * hpgsm->hicn_underneath; + } + if (hicn_interest_parse_pkt (b1, &name1, &namelen1, &hicn1, &isv6_1) + == HICN_ERROR_NONE) + { + /* this node grabs only interests */ + vlib_buffer_t *rb = NULL; + rb = vlib_get_buffer (vm, hpgsm->pgen_svr_buffer_idx); + + isv6_1 ? convert_interest_to_data_v6 (vm, b1, rb, + bi1) : + convert_interest_to_data_v4 (vm, b1, rb, bi1); + + next1 = + isv6_1 ? HICNPG_SERVER_NEXT_V6_LOOKUP : + HICNPG_SERVER_NEXT_V4_LOOKUP; + /* if hicn_underneath ,the following will results as next0 = HICNPG_SERVER_NEXT_DATA_LOOKUP */ + next1 += 2 * hpgsm->hicn_underneath; + } + pkts_processed += 2; + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) + { + if (b0->flags & VLIB_BUFFER_IS_TRACED) + { + hicnpg_server_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = pkt_type0; + t->msg_type = msg_type0; + t->sw_if_index = sw_if_index0; + t->next_index = next0; + } + if (b1->flags & VLIB_BUFFER_IS_TRACED) + { + hicnpg_server_trace_t *t = + vlib_add_trace (vm, node, b1, sizeof (*t)); + t->pkt_type = pkt_type1; + t->msg_type = msg_type1; + t->sw_if_index = sw_if_index1; + t->next_index = next1; + } + } + if (next0 == HICNPG_SERVER_NEXT_DROP) + { + pkts_dropped++; + } + if (next1 == HICNPG_SERVER_NEXT_DROP) + { + pkts_dropped++; + } + /* + * verify speculative enqueues, maybe switch current + * next frame + */ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, + to_next, n_left_to_next, + bi0, bi1, next0, next1); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 next0 = HICNPG_SERVER_NEXT_DROP; + u32 sw_if_index0 = ~0; + u8 isv6_0 = 0; + + /* speculatively enqueue b0 to the current next frame */ + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + + + if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0, &isv6_0) + == HICN_ERROR_NONE) + { + /* this node grabs only interests */ + vlib_buffer_t *rb = NULL; + rb = vlib_get_buffer (vm, hpgsm->pgen_svr_buffer_idx); + + isv6_0 ? convert_interest_to_data_v6 (vm, b0, rb, + bi0) : + convert_interest_to_data_v4 (vm, b0, rb, bi0); + + next0 = + isv6_0 ? HICNPG_SERVER_NEXT_V6_LOOKUP : + HICNPG_SERVER_NEXT_V4_LOOKUP; + /* if hicn_underneath ,the following will results as next0 = HICNPG_SERVER_NEXT_DATA_LOOKUP */ + next0 += 2 * hpgsm->hicn_underneath; + } + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) + && (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicnpg_server_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = pkt_type0; + t->msg_type = msg_type0; + t->sw_if_index = sw_if_index0; + t->next_index = next0; + } + pkts_processed += 1; + + if (next0 == HICNPG_SERVER_NEXT_DROP) + { + pkts_dropped++; + } + /* + * verify speculative enqueue, maybe switch current + * next frame + */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, hicn_pg_server_node.index, + HICNPG_SERVER_ERROR_PROCESSED, pkts_processed); + vlib_node_increment_counter (vm, hicn_pg_server_node.index, + HICNPG_SERVER_ERROR_DROPPED, pkts_dropped); + + return (frame->n_vectors); +} + +void +convert_interest_to_data_v4 (vlib_main_t * vm, vlib_buffer_t * b0, + vlib_buffer_t * rb, u32 bi0) +{ + hicn_header_t *h0 = vlib_buffer_get_current (b0); + + /* Get the packet length */ + u16 pkt_len = clib_net_to_host_u16 (h0->v4.ip.len); + + /* + * Rule of thumb: We want the size of the IP packet to be <= 1500 bytes + */ + u16 bytes_to_copy = rb->current_length; + if ((bytes_to_copy + pkt_len) > 1500) + { + bytes_to_copy = 1500 - pkt_len; + } + /* Add content to the data packet */ + vlib_buffer_add_data (vm, + VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX, &bi0, + rb->data, bytes_to_copy); + + b0 = vlib_get_buffer (vm, bi0); + + h0 = vlib_buffer_get_current (b0); + + ip4_address_t src_addr = h0->v4.ip.saddr; + h0->v4.ip.saddr = h0->v4.ip.daddr; + h0->v4.ip.daddr = src_addr; + + h0->v4.ip.len = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); + h0->v4.ip.csum = ip4_header_checksum ((ip4_header_t *) & (h0->v4.ip)); + calculate_tcp_checksum_v4 (vm, b0); +} + +void +convert_interest_to_data_v6 (vlib_main_t * vm, vlib_buffer_t * b0, + vlib_buffer_t * rb, u32 bi0) +{ + hicn_header_t *h0 = vlib_buffer_get_current (b0); + + /* Get the packet length */ + uint16_t pkt_len = + clib_net_to_host_u16 (h0->v6.ip.len) + sizeof (ip6_header_t); + + /* + * Figure out how many bytes we can add to the content + * + * Rule of thumb: We want the size of the IP packet to be <= 1400 bytes + */ + u16 bytes_to_copy = rb->current_length; + if ((bytes_to_copy + pkt_len) > 1500) + { + bytes_to_copy = 1500 - pkt_len; + } + /* Add content to the data packet */ + vlib_buffer_add_data (vm, + VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX, &bi0, + rb->data, bytes_to_copy); + + b0 = vlib_get_buffer (vm, bi0); + + h0 = vlib_buffer_get_current (b0); + ip6_address_t src_addr = h0->v6.ip.saddr; + h0->v6.ip.saddr = h0->v6.ip.daddr; + h0->v6.ip.daddr = src_addr; + + h0->v6.ip.len = clib_host_to_net_u16 (vlib_buffer_length_in_chain + (vm, b0) - sizeof (ip6_header_t)); + h0->v6.tcp.data_offset_and_reserved |= 0x0f; + h0->v6.tcp.urg_ptr = htons (0xffff); + + calculate_tcp_checksum_v6 (vm, b0); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_pg_server_node) = +{ + .function = hicnpg_node_server_fn, + .name = "hicnpg-server", + .vector_size = sizeof(u32), + .format_trace = format_icnpg_server_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(icnpg_server_error_strings), + .error_strings = icnpg_server_error_strings, + .n_next_nodes = HICNPG_SERVER_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICNPG_SERVER_NEXT_V4_LOOKUP] = "ip4-lookup", + [HICNPG_SERVER_NEXT_V6_LOOKUP] = "ip6-lookup", + [HICNPG_SERVER_NEXT_FACE_IP4_INPUT] = "hicn-face-ip4-input", + [HICNPG_SERVER_NEXT_FACE_IP6_INPUT] = "hicn-face-ip6-input", + [HICNPG_SERVER_NEXT_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * End of packet-generator server node + */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/pg.h b/hicn-plugin/src/pg.h new file mode 100755 index 000000000..083afb6b3 --- /dev/null +++ b/hicn-plugin/src/pg.h @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_PG_H__ +#define __HICN_PG_H__ + +/* Subnet-mask for punting data in the client node */ +#define SUBNET_MASK4 32 +#define SUBNET_MASK6 128 + +typedef struct hicnpg_main_s +{ + u32 index; + u32 index_ifaces; + u32 max_seq_number; + u32 n_flows; + u32 n_ifaces; + u32 hicn_underneath; + ip46_address_t pgen_clt_src_addr; + ip46_address_t pgen_clt_hicn_name; + u16 interest_lifetime; +} hicnpg_main_t; + +extern hicnpg_main_t hicnpg_main; + +typedef struct hicnpg_server_main_s +{ + u32 node_index; + u32 hicn_underneath; + /* Arbitrary content */ + u32 pgen_svr_buffer_idx; +} hicnpg_server_main_t; + +extern hicnpg_server_main_t hicnpg_server_main; + +#endif // __HICN_PG_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/punt.c b/hicn-plugin/src/punt.c new file mode 100755 index 000000000..ea553bf76 --- /dev/null +++ b/hicn-plugin/src/punt.c @@ -0,0 +1,1005 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdarg.h> +#include <stddef.h> // offsetof() +#include <inttypes.h> +#include <vlib/vlib.h> +#include <vppinfra/error.h> +#include <vnet/ip/format.h> +#include <vnet/classify/in_out_acl.h> +#include <vlibapi/api.h> +#include <vlibmemory/api.h> +#include <vnet/ip/ip4_packet.h> +#include <vnet/ip/ip6_packet.h> +#include <vnet/ethernet/packet.h> +#include <vlib/global_funcs.h> +#include <hicn/hicn.h> + +#include "hicn.h" +#include "infra.h" +#include "parser.h" +#include "mgmt.h" +#include "punt.h" +#include "error.h" +#include "route.h" + +/* Those are not static as they are used for pgen in hicn_cli.c */ +ip_version_t ipv4 = { + .tbl = (u32 *) hicn_punt_glb.ip4_vnet_tbl_idx, + .addr_len_bits = IPV4_ADDR_LEN_BITS, + .protocol_field = &ipv4_protocol, + .version_field = &ipv4_version, + .ip_version = 0x40, +}; + +ip_version_t ipv6 = { + .tbl = (u32 *) hicn_punt_glb.ip6_vnet_tbl_idx, + .addr_len_bits = IPV6_ADDR_LEN_BITS, + .protocol_field = &ipv6_protocol, + .version_field = &ipv6_version, + .ip_version = 0x60, +}; + +ip_version_t ipv44 = { + .tbl = (u32 *) hicn_punt_glb.udp44_vnet_tbl_idx, + .addr_len_bits = IPV4_ADDR_LEN_BITS, + .protocol_field = &udp4_protocol, + .udp_sport = &udp4_sport, + .udp_dport = &udp4_dport, + .ip_version = 0x40, +}; + +ip_version_t ipv64 = { + .tbl = (u32 *) hicn_punt_glb.udp64_vnet_tbl_idx, + .addr_len_bits = IPV4_ADDR_LEN_BITS, + .protocol_field = &udp6_protocol, + .udp_sport = &udp6_sport, + .udp_dport = &udp6_dport, + .ip_version = 0x60, +}; + +ip_version_t ipv46 = { + .tbl = (u32 *) hicn_punt_glb.udp46_vnet_tbl_idx, + .addr_len_bits = IPV6_ADDR_LEN_BITS, + .protocol_field = &udp4_protocol, + .udp_sport = &udp4_sport, + .udp_dport = &udp4_dport, + .ip_version = 0x40, +}; + +ip_version_t ipv66 = { + .tbl = (u32 *) hicn_punt_glb.udp66_vnet_tbl_idx, + .addr_len_bits = IPV6_ADDR_LEN_BITS, + .protocol_field = &udp6_protocol, + .udp_sport = &udp6_sport, + .udp_dport = &udp6_dport, + .ip_version = 0x60, +}; + +#define _(NAME, BASE, LAYER, FIELD, PUNT_ID) \ + field_t NAME = { \ + .offset = BASE + offsetof(LAYER, FIELD), \ + .len = STRUCT_SIZE_OF(LAYER, FIELD), \ + .punt_id = PUNT_ID, \ + }; +foreach_field +#undef _ +/* + * In the latest version, we let faces direct the traffic towards Interest + * processing, or MAP-Me nodes. Punting should only make sure that the ICMP + * packets are also sent to the face node. We added the following defines to + * determine the next node to send punted packets. Ideally we might remove + * protocol number check from punting rule. + */ +#define NEXT_MAPME_CTRL4 hicn_punt_glb.next_hit_interest_ipv4 +#define NEXT_MAPME_ACK4 hicn_punt_glb.next_hit_data_ipv4 +#define NEXT_MAPME_CTRL6 hicn_punt_glb.next_hit_interest_ipv6 +#define NEXT_MAPME_ACK6 hicn_punt_glb.next_hit_data_ipv6 + +/* Maximum number of vector allowed in match. Value hardcoded in vnet_classify_hash_packet_inline in vnet_classify.h */ +#define MAX_MATCH_SIZE 5 +/** + * HICN global Punt Info + * + * + * + */ +hicn_punt_glb_t hicn_punt_glb; + +/** + * We use the function build_bit_array to populate an initially empty buffer + * with masks/values for the parts of the packet to match. The function also + * returns the correct skip and match values to pass to vnet_classify_*, which + * are the number of vectors to skip/match during classification (they should be + * multiples of vector size = CLASSIFIER_VECTOR_SIZE). + * + * offsets: + * 0 14 offsetof(IP_HDR, SRC) + * | | / + * +----------+----+-------+-------+----+-... + * | ETH | IP . src . dst . | + * +----------+----+-------+-------+----+-... + * | | | + * |<- skip=1 ->|<--- match=2/3 --->| + * + * + */ + +/** + * The following section defines a couple of protocol fields that we will use + * for creating the buffer. We retrieve the offset and length on those fields + * based on the (portable) header struct aliases defined in libhicn. + * + * In the foreach_field macro, the punt_id field is used as convenience as we + * will have to create different classifier tables based on whether we punt + * interests (on dst) or data (on src). It is undefined (NA) otherwise. + */ + +#define NA 0 + + +/** + * @brief Create a bitmask from mask length. + * @param mask [in] mask length (in bits) + * @param buffer [out] output buffer + * @param len [out] output buffer length + */ +static void +build_ip_address_mask (u8 mask, u8 * buffer, u32 len) +{ + u32 hi_bytes = mask / 8; + u32 hi_bits = mask % 8; + u8 byte_mask = 0xff; + + /* + * memset buffer with 0xff in case of IPV6 16 bytes will be used for + * match + */ + memset (buffer, 0, len); + //might not be needed if buffer is already 0 'ed XXX + memset (buffer, 0xff, hi_bytes); + if (hi_bits != 0) + { + for (int i = 0; i < (8 - hi_bits); i++) + byte_mask = byte_mask << 1; + buffer[hi_bytes] = byte_mask; + } +} + +#define CEIL_DIV(x, y) (1 + ((x - 1) / y)) + +/** + * @brief Create a bit array from field/value list + * @param buffer [out] output buffer + * @param len [out] output buffer length + * @param skip [out] number of CLASSIFIER_VECTOR to skip + * @param match [out] number of CLASSIFIER_VECTOR to match + * @param ... [in] list of [field_t *, value] * used to populate buffer + */ +static int +build_bit_array (u8 * buffer, u32 len, u32 base_offset, u32 * skip, + u32 * match, va_list vl) +{ + u8 min = len, max = 0; + field_t *field; + u8 *value; + int pos; + int count = 0; + + /* Clear buffer */ + memset (buffer, 0, len); + + for (;;) + { + count++; + field = va_arg (vl, field_t *); + if (!field) + break; + + /* Check that the field belongs to the reserved buffer */ + if (field->offset + field->len > len) + goto ERR_PUNT; + + /* + * Copy the value of the field inside the buffer at the + * correct offset + */ + pos = base_offset + field->offset; + value = va_arg (vl, u8 *); + memcpy (buffer + pos, value, field->len); + if (min > pos) + min = pos; + if (max < pos + field->len) + max = pos + field->len; + } + + /* We can skip multiples of the vector match */ + *skip = min / CLASSIFIER_VECTOR_SIZE; + *match = CEIL_DIV (max, CLASSIFIER_VECTOR_SIZE) - *skip; + + if (*match > MAX_MATCH_SIZE) + *match = MAX_MATCH_SIZE; + + return HICN_ERROR_NONE; + +ERR_PUNT: + *skip = 0; + *match = 0; + return HICN_ERROR_PUNT_INVAL; +} + +void +update_table4_index (u32 intfc, u32 table_index) +{ + vnet_classify_main_t *cm = &vnet_classify_main; + + if (hicn_punt_glb.head_ip4[intfc] == ~0) + hicn_punt_glb.head_ip4[intfc] = table_index; + + /* Update the table in tail to poin to this */ + if (hicn_punt_glb.tail_ip4[intfc] != ~0) + { + vnet_classify_table_t *t = + pool_elt_at_index (cm->tables, hicn_punt_glb.tail_ip4[intfc]); + t->next_table_index = table_index; + } + hicn_punt_glb.tail_ip4[intfc] = table_index; +} + +void +update_table6_index (u32 intfc, u32 table_index) +{ + vnet_classify_main_t *cm = &vnet_classify_main; + + if (hicn_punt_glb.head_ip6[intfc] == ~0) + hicn_punt_glb.head_ip6[intfc] = table_index; + + /* Update the table in tail to poin to this */ + if (hicn_punt_glb.tail_ip6[intfc] != ~0) + { + vnet_classify_table_t *t = + pool_elt_at_index (cm->tables, hicn_punt_glb.tail_ip6[intfc]); + t->next_table_index = table_index; + } + hicn_punt_glb.tail_ip6[intfc] = table_index; +} + +/** + * @brief Add or remove a vnet table matching the list of fields/values passed + * as parameters. + * + * @param punt_id Storage identifier (HICN_PUNT_SRC | HICN_PUNT_DST) + * @param mask Subnet mask to match in the table + * @param next_tbl_index next table to match in case of miss + * @param intfc Interface identifier + * @param is_add 1 if the table must be created, 0 if removed + * @param ... list of (field_t, value) to be matched + * + * @result Returns: + * HICN_ERROR_TBL_EXIST if is_add == 1 and a table for the same mask + * already exists, + * HICN_ERROR_TBL_NOT_FOUND if is_add == 0 and there is no table for the + * given mask, + * HICN_ERROR_NONE if no * error occurred. + */ +int +_hicn_punt_add_del_vnettbl (ip_version_t * ip, u8 punt_id, u8 mask, + u32 next_tbl_index, u32 intfc, int base_offset, + int is_add, u8 use_current_data, ...) +{ + u8 buffer[PUNT_BUFFER_SIZE]; /* must be dimensioned + * large enough */ + int rt; + va_list vl; + u32 *table_index; + u32 new_table_index; + u32 skip, match; + + + /* Build the buffer right from the start to determine the skip size */ + va_start (vl, use_current_data); + build_bit_array (buffer, sizeof (buffer), base_offset, &skip, &match, vl); + va_end (vl); + + ASSERT (skip < 4); + //Hardcoded limit in following array + + table_index = TABLE_ELT_P (ip, intfc, skip, punt_id, mask); + + if (is_add && *table_index != HICNP_PUNY_INVALID_TBL) + return HICN_ERROR_PUNT_TBL_EXIST; + if (!is_add && *table_index == HICNP_PUNY_INVALID_TBL) + return HICN_ERROR_PUNT_TBL_NOT_FOUND; + + new_table_index = ~0; + rt = vnet_classify_add_del_table (&vnet_classify_main, + buffer + skip * CLASSIFIER_VECTOR_SIZE, + HICN_CLASSIFY_NBUCKETS, + HICN_CLASSIFY_TABLE_MEMORY_SIZE, skip, + match, HICN_CLASSIFY_NO_NEXT_TABLE, + HICN_CLASSIFY_MISS_NEXT_INDEX, + &new_table_index, + use_current_data, + HICN_CLASSIFY_CURRENT_DATA_OFFSET, is_add, + HICN_CLASSIFY_DON_T_DEL_CHAIN); + + if (rt != 0) + return HICN_ERROR_PUNT_INVAL; + + *table_index = new_table_index; + if (ip->ip_version == 0x40) + update_table4_index (intfc, new_table_index); + else + update_table6_index (intfc, new_table_index); + return HICN_ERROR_NONE; +} + +/** + * @brief Add or remove a vnet table matching the ip_version and field (src/dst) + */ +int +hicn_punt_add_del_vnettbl (ip_version_t * ip, field_t * field, u8 mask, + u32 next_tbl_index, u32 intfc, u8 base_offset, + u8 use_current_data, int is_add) +{ + u8 ip_mask[IPV6_ADDR_LEN]; + build_ip_address_mask (mask, ip_mask, sizeof (ip_mask)); + + return _hicn_punt_add_del_vnettbl (ip, field->punt_id, mask, next_tbl_index, + intfc, base_offset, is_add, + use_current_data, field, ip_mask, NULL); +} + + +/** + * @brief Add or remove a vnet table for udp tunnels matching the ip_version and field (src/dst) + * + */ +int +hicn_punt_add_del_vnettbl_udp (ip_version_t * outer, ip_version_t * inner, + field_t * field, u8 mask, u32 next_tbl_index, + u32 intfc, u8 base_offset, int is_add) +{ + u8 udp_mask[inner->addr_len_bits]; + build_ip_address_mask (mask, udp_mask, sizeof (udp_mask)); + u16 port_value = 0xffff; + u8 protocol_value = 0xff; + + return _hicn_punt_add_del_vnettbl (outer, field->punt_id, mask, + next_tbl_index, intfc, base_offset, + is_add, + HICN_CLASSIFY_NO_CURRENT_DATA_FLAG, + outer->protocol_field, &protocol_value, + outer->udp_sport, &port_value, + outer->udp_dport, &port_value, field, + udp_mask, NULL); +} + +#define hicn_punt_add_vnettbl_udp(outer, inner, field, mask, next_tbl_index, intfc, base_offset) \ + (hicn_punt_add_del_vnettbl_udp(outer, inner, field, mask, next_tbl_index, intfc, base_offset, OP_ADD)) + +#define hicn_punt_del_vnettbl_udp(outer, inner, field, mask, next_tbl_index, intfc, base_offset) \ + (hicn_punt_add_del_vnettbl_udp(outer, inner, field, mask, next_tbl_index, intfc, base_offset, OP_DEL)) + +/** + * @brief Add or remove a vnet session matching the list of fields/values passed + * as parameters. + * + * @param punt_id Storage identifier (HICN_PUNT_SRC | HICN_PUNT_DST) + * @param v4_address IPv4 address to match in the session // XXX v4/v6 + * @param mask Subnet mask to match in the session + * @param next_hit_index vlib arch id pointing to the next node + * @param intfc Interface identifier + * @param is_add 1 if the session must be create, 0 if removed + * @param ... list of (field_t, value) to be matched + * + * @result Returns: + * HICN_ERROR_TBL_NOT_FOUND there is no table for the given mask, + * HICN_ERROR_PUNT_SSN_NOT_FOUND if is_add == 0 and there is no session for + * the given address, + * HICN_ERROR_NONE if no error * occurred. + */ +int +_hicn_punt_add_del_vnetssn (ip_version_t * ip, u8 punt_id, u8 mask, + u32 next_hit_index, u32 intfc, int base_offset, + int is_add, ...) +{ + u8 buffer[PUNT_BUFFER_SIZE]; /* must be dimensioned + * large enough */ + int rt; + va_list vl; + u32 table_index; + u32 skip, match; + + /* Build the buffer right from the start to determine the skip size */ + va_start (vl, is_add); + build_bit_array (buffer, sizeof (buffer), base_offset, &skip, &match, vl); + va_end (vl); + + ASSERT (skip < 4); + //Hardcoded limit in following array + + table_index = TABLE_ELT (ip, intfc, skip, punt_id, mask); + + if (table_index == HICNP_PUNY_INVALID_TBL) + return HICN_ERROR_PUNT_TBL_NOT_FOUND; + + rt = vnet_classify_add_del_session (&vnet_classify_main, table_index, buffer, //+skip * CLASSIFIER_VECTOR_SIZE, + next_hit_index, + HICN_CLASSIFY_OPAQUE_INDEX, + HICN_CLASSIFY_ADVANCE, + HICN_CLASSIFY_ACTION, + HICN_CLASSIFY_METADATA, is_add); + + if (rt == VNET_API_ERROR_NO_SUCH_ENTRY) + rt = HICN_ERROR_PUNT_SSN_NOT_FOUND; + + return rt; +} + +/** + * @brief Add or remove a vnet session matching the ip6 src address + * + * See hicn_punt_add_del_vnetssn for details about parameters. + */ +int +hicn_punt_add_del_vnetssn (ip_version_t * ip, field_t * field, + ip46_address_t * v46_address, u8 mask, + u32 next_hit_index, u32 intfc, u8 base_offset, + int is_add) +{ + return _hicn_punt_add_del_vnetssn (ip, field->punt_id, mask, next_hit_index, + intfc, base_offset, is_add, field, + ip46_address_is_ip4 (v46_address) ? + v46_address->ip4.as_u8 : v46_address-> + ip6.as_u8, NULL); +} + + + +/** + * @brief Add or remove a vnet session for udp tunnels matching the ip6 src address + * + * See hicn_punt_add_del_vnetssn for details about parameters. + */ +int +hicn_punt_add_del_vnetssn_udp (ip_version_t * outer, ip_version_t * inner, + field_t * field, ip46_address_t * v46_address, + u8 mask, u32 next_hit_index, u32 intfc, + u8 base_offset, u8 protocol, u16 sport, + u16 dport, int is_add) +{ + return _hicn_punt_add_del_vnetssn (outer, field->punt_id, mask, + next_hit_index, intfc, base_offset, + is_add, outer->protocol_field, &protocol, + outer->udp_sport, &sport, + outer->udp_dport, &dport, field, + v46_address->as_u8, NULL); +} + +#define hicn_punt_add_vnetssn_udp(outer, inner, field, addr, mask, index, intfc, offset, protocol, sport, dport) \ + (hicn_punt_add_del_vnetssn_udp(outer, inner, field, addr, mask, index, intfc, offset, protocol, sport, dport, OP_ADD)) + +#define hicn_punt_del_vnetssn_udp(outer, inner, field, addr, mask, index, intfc, offset, protocol, sport, dport) \ + (hicn_punt_add_del_vnetssn_udp(outer, inner, field, addr, mask, index, intfc, offset, protocol, sport, dport, OP_DEL)) + +/* + * Enable the table on a given interface considering the table type + */ +void +hicn_punt_enable_disable_vnet_ip4_table_on_intf (vlib_main_t * vm, + u32 sw_if_index, + int is_enable) +{ + if (hicn_punt_glb.head_ip4[sw_if_index] != HICNP_PUNY_INVALID_TBL) + (void) vnet_set_input_acl_intfc (vm, sw_if_index, + hicn_punt_glb.head_ip4[sw_if_index], + 0xFFFFFFFF, 0xFFFFFFFF, is_enable); + return; +} + +/* + * Enable the table on a given interface considering the table type + * + * XXX replace skip by base_offset XXX are we sure we always have ETH_L2, and + * not base_offset ??? + */ +int +hicn_punt_remove_ip4_address (vlib_main_t * vm, ip4_address_t * addr, + u8 mask, int skip, u32 sw_if_index, + int is_enable) +{ + + vnet_classify_main_t *cm = &vnet_classify_main; + vnet_classify_table_t *vnet_table = NULL; + + u32 table_index = ~0; + + u32 base_offset = (skip ? ETH_L2 : NO_L2); + ip46_address_t addr46; + ip46_address_set_ip4 (&addr46, addr); + + hicn_punt_del_vnetssn (&ipv4, &ipv4_src, &addr46, mask, + hicn_punt_glb.next_hit_data_ipv4, sw_if_index, + ETH_L2); + hicn_punt_del_vnetssn (&ipv4, &ipv4_dst, &addr46, mask, + hicn_punt_glb.next_hit_interest_ipv4, sw_if_index, + ETH_L2); + + table_index = + hicn_punt_glb.ip4_vnet_tbl_idx[sw_if_index][skip][HICN_PUNT_DST][mask]; + vnet_table = pool_elt_at_index (cm->tables, table_index); + if (vnet_table->active_elements == 0) + { + hicn_punt_del_vnettbl (&ipv4, &ipv4_dst, mask, + hicn_punt_glb.ip4_vnet_tbl_idx[sw_if_index][skip] + [HICN_PUNT_SRC][mask], sw_if_index, base_offset); + } + table_index = + hicn_punt_glb.ip4_vnet_tbl_idx[sw_if_index][skip][HICN_PUNT_SRC][mask]; + vnet_table = pool_elt_at_index (cm->tables, table_index); + if (vnet_table->active_elements == 0) + { + hicn_punt_del_vnettbl (&ipv4, &ipv4_src, mask, ~0, sw_if_index, + base_offset); + } + return HICN_ERROR_NONE; +} + +int +hicn_punt_remove_ip6_address (vlib_main_t * vm, ip6_address_t * addr, + u8 mask, int skip, u32 sw_if_index, + int is_enable) +{ + + vnet_classify_main_t *cm = &vnet_classify_main; + vnet_classify_table_t *vnet_table = NULL; + + u32 table_index = ~0; + + u32 base_offset = (skip ? ETH_L2 : NO_L2); + + hicn_punt_del_vnetssn (&ipv6, &ipv6_src, (ip46_address_t *) addr, mask, + hicn_punt_glb.next_hit_data_ipv6, sw_if_index, + ETH_L2); + hicn_punt_del_vnetssn (&ipv6, &ipv6_dst, (ip46_address_t *) addr, mask, + hicn_punt_glb.next_hit_interest_ipv6, sw_if_index, + ETH_L2); + + table_index = + hicn_punt_glb.ip6_vnet_tbl_idx[sw_if_index][skip][HICN_PUNT_DST][mask]; + vnet_table = pool_elt_at_index (cm->tables, table_index); + if (vnet_table->active_elements == 0) + { + hicn_punt_del_vnettbl (&ipv6, &ipv6_dst, mask, + hicn_punt_glb.ip6_vnet_tbl_idx[sw_if_index][skip] + [HICN_PUNT_SRC][mask], sw_if_index, base_offset); + } + table_index = + hicn_punt_glb.ip6_vnet_tbl_idx[sw_if_index][skip][HICN_PUNT_SRC][mask]; + vnet_table = pool_elt_at_index (cm->tables, table_index); + if (vnet_table->active_elements == 0) + { + hicn_punt_del_vnettbl (&ipv6, &ipv6_src, mask, ~0, sw_if_index, + base_offset); + } + return HICN_ERROR_NONE; +} + +/* + * Enable the table on a given interface considering the table type + */ +void +hicn_punt_enable_disable_vnet_ip6_table_on_intf (vlib_main_t * vm, + u32 sw_if_index, + int is_enable) +{ + if (hicn_punt_glb.head_ip6[sw_if_index] != HICNP_PUNY_INVALID_TBL) + (void) vnet_set_input_acl_intfc (vm, sw_if_index, + 0xFFFFFFFF, + hicn_punt_glb.head_ip6[sw_if_index], + 0xFFFFFFFF, is_enable); + return; +} + +/* + * HICN PUNT vlibd node addtion + */ +void +hicn_punt_vlib_node_add (vlib_main_t * vm) +{ + u32 hit_next_index = 0xFFFFFFFF; + vlib_node_t *node; + + /* to remove the warning */ + hit_next_index = hit_next_index; + + //Accquire the node indexes + + /* ip face */ + node = vlib_get_node_by_name (vm, (u8 *) "hicn-face-ip4-input"); + hicn_punt_glb.hicn_node_info.hicn_face_ip4_input_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-face-ip6-input"); + hicn_punt_glb.hicn_node_info.hicn_face_ip6_input_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-face-ip4-output"); + hicn_punt_glb.hicn_node_info.hicn_face_ip4_output_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-face-ip6-output"); + hicn_punt_glb.hicn_node_info.hicn_face_ip6_output_index = node->index; + + /* ip iface */ + node = vlib_get_node_by_name (vm, (u8 *) "hicn-iface-ip4-input"); + hicn_punt_glb.hicn_node_info.hicn_iface_ip4_input_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-iface-ip6-input"); + hicn_punt_glb.hicn_node_info.hicn_iface_ip6_input_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-iface-ip4-output"); + hicn_punt_glb.hicn_node_info.hicn_iface_ip4_output_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-iface-ip6-output"); + hicn_punt_glb.hicn_node_info.hicn_iface_ip4_output_index = node->index; + + /* udp face */ + node = vlib_get_node_by_name (vm, (u8 *) "hicn-face-udp4-input"); + hicn_punt_glb.hicn_node_info.hicn_face_udp4_input_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-face-udp6-input"); + hicn_punt_glb.hicn_node_info.hicn_face_udp6_input_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-face-udp4-output"); + hicn_punt_glb.hicn_node_info.hicn_face_udp4_output_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-face-udp6-output"); + hicn_punt_glb.hicn_node_info.hicn_face_udp6_output_index = node->index; + + /* udp iface */ + node = vlib_get_node_by_name (vm, (u8 *) "hicn-iface-udp4-input"); + hicn_punt_glb.hicn_node_info.hicn_iface_udp4_input_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-iface-udp6-input"); + hicn_punt_glb.hicn_node_info.hicn_iface_udp6_input_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-iface-udp4-output"); + hicn_punt_glb.hicn_node_info.hicn_iface_udp4_output_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "hicn-iface-udp6-output"); + hicn_punt_glb.hicn_node_info.hicn_iface_udp6_output_index = node->index; + + node = vlib_get_node_by_name (vm, (u8 *) "ip4-inacl"); + hicn_punt_glb.hicn_node_info.ip4_inacl_node_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "ip6-inacl"); + hicn_punt_glb.hicn_node_info.ip6_inacl_node_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "ip4-lookup"); + hicn_punt_glb.hicn_node_info.ip4_lookup_node_index = node->index; + node = vlib_get_node_by_name (vm, (u8 *) "ip6-lookup"); + hicn_punt_glb.hicn_node_info.ip6_lookup_node_index = node->index; + + + hicn_punt_glb.next_hit_data_ipv4 = vlib_node_add_next (vm, + hicn_punt_glb.hicn_node_info. + ip4_inacl_node_index, + hicn_punt_glb.hicn_node_info. + hicn_face_ip4_input_index); + + hicn_punt_glb.next_hit_interest_ipv4 = vlib_node_add_next (vm, + hicn_punt_glb.hicn_node_info. + ip4_inacl_node_index, + hicn_punt_glb.hicn_node_info. + hicn_iface_ip4_input_index); + + hicn_punt_glb.next_hit_data_ipv6 = vlib_node_add_next (vm, + hicn_punt_glb.hicn_node_info. + ip6_inacl_node_index, + hicn_punt_glb.hicn_node_info. + hicn_face_ip6_input_index); + + hicn_punt_glb.next_hit_interest_ipv6 = vlib_node_add_next (vm, + hicn_punt_glb.hicn_node_info. + ip6_inacl_node_index, + hicn_punt_glb.hicn_node_info. + hicn_iface_ip6_input_index); + + hicn_punt_glb.next_hit_data_udp4 = vlib_node_add_next (vm, + hicn_punt_glb.hicn_node_info. + ip4_inacl_node_index, + hicn_punt_glb.hicn_node_info. + hicn_face_udp4_input_index); + + hicn_punt_glb.next_hit_interest_udp4 = vlib_node_add_next (vm, + hicn_punt_glb.hicn_node_info. + ip4_inacl_node_index, + hicn_punt_glb.hicn_node_info. + hicn_iface_udp4_input_index); + + hicn_punt_glb.next_hit_data_udp6 = vlib_node_add_next (vm, + hicn_punt_glb.hicn_node_info. + ip6_inacl_node_index, + hicn_punt_glb.hicn_node_info. + hicn_face_udp6_input_index); + + hicn_punt_glb.next_hit_interest_udp6 = vlib_node_add_next (vm, + hicn_punt_glb.hicn_node_info. + ip6_inacl_node_index, + hicn_punt_glb.hicn_node_info. + hicn_iface_udp6_input_index); + + return; +} + +/* + * HICN PUNT INIT + */ +void +hicn_punt_init (vlib_main_t * vm) +{ + u32 table_index = ~0; + //Create vnet classify tables and store the table indexes + memset (hicn_punt_glb.ip4_vnet_tbl_idx, table_index, + sizeof (u32) * 4 * 2 * HICN_PUNT_IP4_MASK * HICN_MAX_INTFC); + memset (hicn_punt_glb.ip6_vnet_tbl_idx, table_index, + sizeof (u32) * 4 * 2 * HICN_PUNT_IP6_MASK * HICN_MAX_INTFC); + + memset (hicn_punt_glb.udp44_vnet_tbl_idx, table_index, + sizeof (u32) * 4 * 2 * HICN_PUNT_IP4_MASK * HICN_MAX_INTFC); + memset (hicn_punt_glb.udp46_vnet_tbl_idx, table_index, + sizeof (u32) * 4 * 2 * HICN_PUNT_IP6_MASK * HICN_MAX_INTFC); + memset (hicn_punt_glb.udp64_vnet_tbl_idx, table_index, + sizeof (u32) * 4 * 2 * HICN_PUNT_IP4_MASK * HICN_MAX_INTFC); + memset (hicn_punt_glb.udp66_vnet_tbl_idx, table_index, + sizeof (u32) * 4 * 2 * HICN_PUNT_IP6_MASK * HICN_MAX_INTFC); + //Register hicn nodes after vnet table creation + hicn_punt_vlib_node_add (vm); + memset (hicn_punt_glb.head_ip4, ~0, sizeof (u32) * HICN_MAX_INTFC); + memset (hicn_punt_glb.tail_ip4, ~0, sizeof (u32) * HICN_MAX_INTFC); + memset (hicn_punt_glb.head_ip6, ~0, sizeof (u32) * HICN_MAX_INTFC); + memset (hicn_punt_glb.tail_ip6, ~0, sizeof (u32) * HICN_MAX_INTFC); + return; +} + +u32 +hicn_punt_interest_data_for_udp (vlib_main_t * vm, + ip46_address_t * prefix, u8 mask, + u32 swif, u8 punt_type, u16 sport, u16 dport) +{ + int skip = 1; + u32 table_index; + + if (punt_type != HICN_PUNT_IP_TYPE && punt_type != HICN_PUNT_UDP4_TYPE + && punt_type != HICN_PUNT_UDP6_TYPE) + return HICN_ERROR_PUNT_INVAL; + + if (ip46_address_is_ip4 (prefix)) + { + if (mask > IPV4_ADDR_LEN_BITS) + return HICN_ERROR_PUNT_INVAL; + + if (punt_type == HICN_PUNT_UDP4_TYPE) + { + skip = 2; + /* Create Vnet table for a given mask */ + hicn_punt_add_vnettbl_udp (&ipv44, &ipv4, &udp44_src, mask, ~0, + swif, ETH_L2); + + table_index = + hicn_punt_glb.udp44_vnet_tbl_idx[swif][skip][HICN_PUNT_SRC][mask]; + + hicn_punt_add_vnettbl_udp (&ipv44, &ipv4, &udp44_dst, mask, + table_index, swif, ETH_L2); + /* + * Add a session for the specified ip address and + * subnet mask + */ + hicn_punt_add_vnetssn_udp (&ipv44, &ipv4, &udp44_src, + prefix, mask, + hicn_punt_glb.next_hit_data_udp4, + swif, ETH_L2, IPPROTO_UDP, sport, dport); + + hicn_punt_add_vnetssn_udp (&ipv44, &ipv4, &udp44_dst, + prefix, mask, + hicn_punt_glb.next_hit_interest_udp4, + swif, ETH_L2, IPPROTO_UDP, sport, dport); + + hicn_punt_enable_disable_vnet_ip4_table_on_intf (vm, swif, + OP_ENABLE); + } + else //PUNTING is UDP6 + { + skip = 3; + /* Create Vnet table for a given mask */ + hicn_punt_add_vnettbl_udp (&ipv64, &ipv6, &udp64_src, mask, ~0, + swif, ETH_L2); + + table_index = + hicn_punt_glb.udp64_vnet_tbl_idx[swif][skip][HICN_PUNT_SRC][mask]; + + hicn_punt_add_vnettbl_udp (&ipv64, &ipv6, &udp64_dst, mask, + table_index, swif, ETH_L2); + + /* + * Add a session for the specified ip address and + * subnet mask + */ + hicn_punt_add_vnetssn_udp (&ipv64, &ipv4, &udp64_src, + prefix, mask, + hicn_punt_glb.next_hit_data_udp6, + swif, ETH_L2, IPPROTO_UDP, sport, dport); + + hicn_punt_add_vnetssn_udp (&ipv64, &ipv4, &udp64_dst, + prefix, mask, + hicn_punt_glb.next_hit_interest_udp6, + swif, ETH_L2, IPPROTO_UDP, sport, dport); + + hicn_punt_enable_disable_vnet_ip6_table_on_intf (vm, swif, + OP_ENABLE); + } + } + else + { + if (punt_type == HICN_PUNT_UDP4_TYPE) + { + skip = 2; + /* Create Vnet table for a given mask */ + if (mask > 96) + return HICN_ERROR_PUNT_INVAL; + + hicn_punt_add_vnettbl_udp (&ipv46, &ipv4, &udp46_src, mask, ~0, + swif, ETH_L2); + + table_index = + hicn_punt_glb.udp46_vnet_tbl_idx[swif][skip][HICN_PUNT_SRC][mask]; + hicn_punt_add_vnettbl_udp (&ipv46, &ipv4, &udp46_dst, mask, + table_index, swif, ETH_L2); + + /* + * Add a session for the specified ip address and + * subnet mask + */ + hicn_punt_add_vnetssn_udp (&ipv46, &ipv4, &udp46_src, + prefix, mask, + hicn_punt_glb.next_hit_data_udp4, + swif, ETH_L2, IPPROTO_UDP, sport, dport); + hicn_punt_add_vnetssn_udp (&ipv46, &ipv4, &udp46_dst, + prefix, mask, + hicn_punt_glb.next_hit_interest_udp4, + swif, ETH_L2, IPPROTO_UDP, sport, dport); + + hicn_punt_enable_disable_vnet_ip4_table_on_intf (vm, swif, + OP_ENABLE); + } + else + { + if (mask > 122) + return HICN_ERROR_PUNT_INVAL; + + skip = 3; + hicn_punt_add_vnettbl_udp (&ipv66, &ipv6, &udp66_src, mask, ~0, + swif, ETH_L2); + + table_index = + hicn_punt_glb.udp66_vnet_tbl_idx[swif][skip][HICN_PUNT_SRC][mask]; + hicn_punt_add_vnettbl_udp (&ipv66, &ipv6, &udp66_dst, mask, + table_index, swif, ETH_L2); + + /* + * Add a session for the specified ip address and + * subnet mask + */ + hicn_punt_add_vnetssn_udp (&ipv66, &ipv6, &udp66_src, + prefix, mask, + hicn_punt_glb.next_hit_data_udp6, + swif, ETH_L2, IPPROTO_UDP, sport, dport); + hicn_punt_add_vnetssn_udp (&ipv66, &ipv6, &udp66_dst, + prefix, mask, + hicn_punt_glb.next_hit_interest_udp6, + swif, ETH_L2, IPPROTO_UDP, sport, dport); + + hicn_punt_enable_disable_vnet_ip6_table_on_intf (vm, swif, + OP_ENABLE); + } + + } + return HICN_ERROR_NONE; +} + + + +u32 +hicn_punt_interest_data_for_ethernet (vlib_main_t * vm, + ip46_address_t * prefix, u8 mask, + u32 swif, u8 punt_type) +{ + int skip = 1; + u32 table_index; + u8 use_current_data = HICN_CLASSIFY_NO_CURRENT_DATA_FLAG; + + if (punt_type != HICN_PUNT_IP_TYPE && punt_type != HICN_PUNT_UDP4_TYPE + && punt_type != HICN_PUNT_UDP6_TYPE) + return HICN_ERROR_PUNT_INVAL; + + if (ip46_address_is_ip4 (prefix)) + { + if (mask > IPV4_ADDR_LEN_BITS) + return HICN_ERROR_PUNT_INVAL; + + if (punt_type == HICN_PUNT_IP_TYPE) + { + /* Create Vnet table for a given mask */ + hicn_punt_add_vnettbl (&ipv4, &ipv4_src, mask, ~0, swif, ETH_L2, + use_current_data); + + table_index = + hicn_punt_glb.ip4_vnet_tbl_idx[swif][skip][HICN_PUNT_SRC][mask]; + + hicn_punt_add_vnettbl (&ipv4, &ipv4_dst, mask, table_index, swif, + ETH_L2, use_current_data); + + /* + * Add a session for the specified ip address and + * subnet mask + */ + hicn_punt_add_vnetssn (&ipv4, &ipv4_src, + prefix, mask, + hicn_punt_glb.next_hit_data_ipv4, swif, + ETH_L2); + hicn_punt_add_vnetssn (&ipv4, &ipv4_dst, + prefix, mask, + hicn_punt_glb.next_hit_interest_ipv4, swif, + ETH_L2); + + hicn_punt_enable_disable_vnet_ip4_table_on_intf (vm, swif, + OP_ENABLE); + } + else + { + return HICN_ERROR_PUNT_INVAL; + } + } + else + { + if (punt_type == HICN_PUNT_IP_TYPE) + { + if (mask > IPV6_ADDR_LEN_BITS) + return HICN_ERROR_PUNT_INVAL; + + /* Create Vnet table for a given mask */ + hicn_punt_add_vnettbl (&ipv6, &ipv6_src, mask, ~0, swif, ETH_L2, + use_current_data); + + table_index = + hicn_punt_glb.ip6_vnet_tbl_idx[swif][skip][HICN_PUNT_SRC][mask]; + + hicn_punt_add_vnettbl (&ipv6, &ipv6_dst, mask, table_index, swif, + ETH_L2, use_current_data); + + /* + * Add a session for the specified ip address and + * subnet mask + */ + hicn_punt_add_vnetssn (&ipv6, &ipv6_src, prefix, + mask, hicn_punt_glb.next_hit_data_ipv6, swif, + ETH_L2); + hicn_punt_add_vnetssn (&ipv6, &ipv6_dst, prefix, + mask, hicn_punt_glb.next_hit_interest_ipv6, + swif, ETH_L2); + + hicn_punt_enable_disable_vnet_ip6_table_on_intf (vm, swif, + OP_ENABLE); + } + else + { + return HICN_ERROR_PUNT_INVAL; + } + + } + return HICN_ERROR_NONE; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/punt.h b/hicn-plugin/src/punt.h new file mode 100755 index 000000000..ebc27e9d4 --- /dev/null +++ b/hicn-plugin/src/punt.h @@ -0,0 +1,338 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_PUNT_H__ +#define __HICN_PUNT_H__ + +#include <vppinfra/error.h> +#include <hicn/hicn.h> + +#define HICN_CLASSIFY_TABLE_MEMORY_SIZE (2*1024*1024) // 2MB allocated for the classification table +#define HICN_PUNTING_BUFFER_SIZE_32 (32) +#define HICN_PUNTING_BUFFER_SIZE_48 (48) +#define HICN_PUNTING_BUFFER_SIZE_64 (64) +#define HICN_PUNTING_BUFFER_SIZE_80 (80) +#define HICN_PUNTING_BUFFER_SIZE_128 (128) + +/* Limits */ + +#define HICN_PUNT_IP4 0 +#define HICN_PUNT_IP6 1 + +#define HICN_MAX_INTFC 256 + +/* We also consider mask = 0 to match everything */ +#define HICN_PUNT_IP4_MASK 33 +#define HICN_PUNT_IP6_MASK 129 + +#define HICN_PUNT_IP_TYPE 0 +#define HICN_PUNT_UDP4_TYPE 1 +#define HICN_PUNT_UDP6_TYPE 2 +/* + * u32 ip4_vnet_tbl_idx[HICN_MAX_INTFC][2][3][HICN_PUNT_IP4_MASK]; + * //[skip][src][mask],[skip][dst][mask] u32 + * ip6_vnet_tbl_idx[HICN_MAX_INTFC][2][3][HICN_PUNT_IP6_MASK]; + * //[skip][src][mask],[skip][dst][mask] + */ +#define PUNT_MASK(ip) (ip->addr_len_bits + 1) +#define TABLE_ELT_P(ip, i, j, k, l) (ip->tbl + (4 * 2 * PUNT_MASK(ip)) * i + (2 * PUNT_MASK(ip)) * j + k * PUNT_MASK(ip) + l) +#define TABLE_ELT(ip, i, j, k, l) (*(TABLE_ELT_P(ip, i, j, k, l))) + +#define NO_L2 0 +#define ETH_L2 sizeof(ethernet_header_t) + +#define IPPROTO_MASK 0xFF + +/* Index to access vnet table index */ +#define HICN_PUNT_SRC 0 +#define HICN_PUNT_DST 1 + +#define HICN_PUNT_OK 0 +#define HICN_PUNT_ERR 1 + +#define HICNP_PUNY_INVALID_TBL ~0 + +/* Number of bytes before the next header/protocol field in ip6/4 */ +#define BYTES_TO_PROTOCOL_IP4 9 +#define BYTES_TO_NEXT_HEADER_IP6 6 + +#define PUNT_BUFFER_SIZE 100 /* B */ +#define CLASSIFIER_VECTOR_SIZE 16 /* B */ + +#define OP_DEL 0 +#define OP_ADD 1 +#define OP_DISABLE 0 +#define OP_ENABLE 1 + +/* vnet_classify_add_del_table */ +#define HICN_CLASSIFY_NO_NEXT_TABLE 0xFFFFFFFF +#define HICN_CLASSIFY_MISS_NEXT_INDEX 16 +#define HICN_CLASSIFY_CURRENT_DATA_FLAG CLASSIFY_FLAG_USE_CURR_DATA +#define HICN_CLASSIFY_NO_CURRENT_DATA_FLAG 0 +#define HICN_CLASSIFY_CURRENT_DATA_OFFSET 0 +#define HICN_CLASSIFY_DON_T_DEL_CHAIN 0 + +/* vnet_classify_add_del_session */ +#define HICN_CLASSIFY_OPAQUE_INDEX 0xFFFFFFFF +#define HICN_CLASSIFY_ADVANCE 0 +#define HICN_CLASSIFY_ACTION 0 +#define HICN_CLASSIFY_METADATA 0 + +/* This should be equal to the number of rules we expect in each table */ +#define HICN_CLASSIFY_NBUCKETS 3 + + +/* HICN punt node index */ +typedef struct _hicn_node_info_s +{ + u32 hicn_face_ip4_input_index; + u32 hicn_face_ip6_input_index; + u32 hicn_iface_ip4_input_index; + u32 hicn_iface_ip6_input_index; + u32 hicn_face_ip4_output_index; + u32 hicn_face_ip6_output_index; + u32 hicn_iface_ip4_output_index; + u32 hicn_iface_ip6_output_index; + u32 hicn_face_udp4_input_index; + u32 hicn_face_udp6_input_index; + u32 hicn_iface_udp4_input_index; + u32 hicn_iface_udp6_input_index; + u32 hicn_face_udp4_output_index; + u32 hicn_face_udp6_output_index; + u32 hicn_iface_udp4_output_index; + u32 hicn_iface_udp6_output_index; + u32 ip4_inacl_node_index; + u32 ip6_inacl_node_index; + u32 ip4_lookup_node_index; + u32 ip6_lookup_node_index; +} hicn_node_info_t; + +/* + * HICN global PUNT info + */ +typedef struct _hicn_punt_glb_s +{ + hicn_node_info_t hicn_node_info; + + /* + * The following nodes are used to create the vlib node graph, and + * point classified packets to the right node. + */ + u32 next_hit_interest_ipv4; + //node - graph index to forward packets to our hicn nodes + u32 next_hit_data_ipv4; + u32 next_hit_interest_ipv6; + //node - graph index to forward packets to our hicn nodes + u32 next_hit_data_ipv6; + u32 next_hit_interest_udp4; + //node - graph index to forward packets to our hicn nodes + u32 next_hit_data_udp4; + u32 next_hit_interest_udp6; + //node - graph index to forward packets to our hicn nodes + u32 next_hit_data_udp6; + + /* + * One table is created : - per interface : so that we can have + * different punted prefixes per interface, and thus decrease the + * amount of matched rules per packet. An interface will be + * consistently receiving packets with or without the ethernet + * header, and thus the offsets should always be correct. - per skip + * (assuming it is for the base offset (ethernet or not), in which + * case the interface should be sufficient. - per prefix length to + * allow for sorting later. - per src / dst (?) + * + * Note that there is no test on the packet type (v4 or v6), as they + * follow distinct paths in the vpp graph and will thus be dispatched + * to distinct classifiers. This is also why we duplicate the state + * for both IPv4 and IPv6 in this implementation. + * + * Tables are chained per interface in the order they are added. Each + * table consists in a set of rules (named sessions). + * + * / interface --> table i [.next_table_index=j] --> table j [.nti=~0] + * -- drop \ | | +-- on match, + * send to node m +-- [...] to node n + * + * For debugging purposes, you can use the following commands: + * + * vppctl show inacl type ip4 vppctl show inacl type ip6 + * + * vppctl show classify tables [verbose] + * + * TODO: - allow tables to be removed - sort tables with decreasing + * prefix length to allow for LPM. - directly access the linked list + * through vpp APIs and remove global variables. They are not + * sufficient anyways for removal. + */ + + /** + * Given the current implementation, the following multidimensional array + * stores the table indexes uniquerly identified by the 4-tuple (interface, + * skip, src/dst, mask). + * + * For flexibility, some macros and functions will be defined in the .c to + * manipulate this array. + */ + u32 ip4_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP4_MASK]; + //[skip][src][mask],[skip][dst][mask] + u32 ip6_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP6_MASK]; + //[skip][src][mask],[skip][dst][mask] + u32 udp44_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP4_MASK]; + //[skip][src][mask],[skip][dst][mask] + u32 udp46_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP6_MASK]; + //[skip][src][mask],[skip][dst][mask] + u32 udp64_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP4_MASK]; + //[skip][src][mask],[skip][dst][mask] + u32 udp66_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP6_MASK]; + //[skip][src][mask],[skip][dst][mask] + + /* + * The first and last tables associated to each interface (both for + * v4 and v6) are stored. They are respectively used to : - start + * classification on the correct table depending on the input + * interface: the assumption is that different interfaces with punt + * different prefixes, which should decreate the number of potential + * rules to match for each incoming packet. see. + * vnet_set_input_acl_intfc() - maintain the chaining between tables + * so that upon addition, the newly created table can be chained to + * the previous last one. + */ + u32 head_ip4[HICN_MAX_INTFC]; + u32 tail_ip4[HICN_MAX_INTFC]; + u32 head_ip6[HICN_MAX_INTFC]; + u32 tail_ip6[HICN_MAX_INTFC]; + +} hicn_punt_glb_t; + +extern hicn_punt_glb_t hicn_punt_glb; + + + +/* XXX The two following structs might be opaque */ + +#define NA 0 + +typedef struct +{ + u32 offset; + u32 len; /* bytes */ + u32 punt_id; /* see explanation in hicn_punt.c */ +} field_t; + +/* Format: _(name, base, layer, field, punt_id) */ +#define foreach_field \ + _(ipv6_src, 0, _ipv6_header_t, saddr, HICN_PUNT_SRC) \ + _(ipv6_dst, 0, _ipv6_header_t, daddr, HICN_PUNT_DST) \ + _(ipv6_protocol, 0, _ipv6_header_t, nxt, NA) \ + _(ipv4_src, 0, _ipv4_header_t, saddr, HICN_PUNT_SRC) \ + _(ipv4_dst, 0, _ipv4_header_t, daddr, HICN_PUNT_DST) \ + _(ipv4_protocol, 0, _ipv4_header_t, protocol, NA) \ + \ + _(ipv4_version, 0, _ipv4_header_t, version_ihl, NA) \ + _(ipv6_version, 0, _ipv6_header_t, vfc, NA) \ + _(udp4_sport, IPV4_HDRLEN, _udp_header_t, src_port, NA) \ + _(udp4_dport, IPV4_HDRLEN, _udp_header_t, dst_port, NA) \ + _(udp6_sport, IPV6_HDRLEN, _udp_header_t, src_port, NA) \ + _(udp6_dport, IPV6_HDRLEN, _udp_header_t, dst_port, NA) \ + _(udp6_protocol, 0, _ipv6_header_t, nxt, NA) \ + _(udp4_protocol, 0, _ipv4_header_t, protocol, NA) \ + _(udp46_src, IPV4_HDRLEN + UDP_HDRLEN, _ipv6_header_t, saddr, HICN_PUNT_SRC) \ + _(udp46_dst, IPV4_HDRLEN + UDP_HDRLEN, _ipv6_header_t, daddr, HICN_PUNT_DST) \ + _(udp44_src, IPV4_HDRLEN + UDP_HDRLEN, _ipv4_header_t, saddr, HICN_PUNT_SRC) \ + _(udp44_dst, IPV4_HDRLEN + UDP_HDRLEN, _ipv4_header_t, daddr, HICN_PUNT_DST) \ + _(udp66_src, IPV6_HDRLEN + UDP_HDRLEN, _ipv6_header_t, saddr, HICN_PUNT_SRC) \ + _(udp66_dst, IPV6_HDRLEN + UDP_HDRLEN, _ipv6_header_t, daddr, HICN_PUNT_DST) \ + _(udp64_src, IPV6_HDRLEN + UDP_HDRLEN, _ipv6_header_t, saddr, HICN_PUNT_SRC) \ + _(udp64_dst, IPV6_HDRLEN + UDP_HDRLEN, _ipv6_header_t, daddr, HICN_PUNT_DST) \ + + +#define _(NAME, BASE, LAYER, FIELD, PUNT_ID) \ + extern field_t NAME; +foreach_field +#undef _ + typedef struct +{ + u32 *tbl; + u8 addr_len_bits; + field_t *protocol_field; + field_t *version_field; + field_t *udp_sport; + field_t *udp_dport; + u8 ip_version; +} ip_version_t; + +extern ip_version_t ipv4; +extern ip_version_t ipv6; + + +/* ------------------------- */ + +/** + * @brief Punt table APIs + * + * Those APIs are called when the first punting table is created for a given + * interface, so as to point to the start of the chain. + */ +void +hicn_punt_enable_disable_vnet_ip4_table_on_intf (vlib_main_t * vm, + u32 sw_if_index, + int is_enable); +void +hicn_punt_enable_disable_vnet_ip6_table_on_intf (vlib_main_t * vm, + u32 sw_if_index, + int is_enable); +u32 hicn_punt_interest_data_for_udp (vlib_main_t * vm, + ip46_address_t * prefix, u8 mask, + u32 swif, u8 punt_type, u16 sport, + u16 dport); +u32 hicn_punt_interest_data_for_ethernet (vlib_main_t * vm, + ip46_address_t * prefix, u8 mask, + u32 swif, u8 type); +int hicn_punt_remove_ip6_address (vlib_main_t * vm, ip6_address_t * addr, + u8 mask, int skip, u32 swif, int is_enable); +int hicn_punt_remove_ip4_address (vlib_main_t * vm, ip4_address_t * addr, + u8 mask, int skip, u32 swif, int is_enable); +void hicn_punt_init (vlib_main_t * vm); + +int +hicn_punt_add_del_vnettbl (ip_version_t * ip, field_t * field, u8 mask, u32 + next_tbl_index, u32 intfc, u8 base_offset, + u8 use_current_data, int is_add); + +#define hicn_punt_add_vnettbl(ip, field, mask, next_tbl_index, intfc, base_offset, use_current_data) \ + (hicn_punt_add_del_vnettbl(ip, field, mask, next_tbl_index, intfc, base_offset, use_current_data, OP_ADD)) + +#define hicn_punt_del_vnettbl(ip, field, mask, next_tbl_index, intfc, base_offset) \ + (hicn_punt_add_del_vnettbl(ip, field, mask, next_tbl_index, intfc, base_offset, HICN_CLASSIFY_NO_CURRENT_DATA_FLAG, OP_DEL)) + +int +hicn_punt_add_del_vnetssn (ip_version_t * ip, field_t * field, + ip46_address_t * v46_address, u8 mask, + u32 next_hit_index, u32 intfc, u8 base_offset, + int is_add); + +#define hicn_punt_add_vnetssn(ip, field, addr, mask, index, intfc, offset) \ + (hicn_punt_add_del_vnetssn(ip, field, addr, mask, index, intfc, offset, OP_ADD)) + +#define hicn_punt_del_vnetssn(ip, field, addr, mask, index, intfc, offset) \ + (hicn_punt_add_del_vnetssn(ip, field, addr, mask, index, intfc, offset, OP_DEL)) + +#endif /* // __HICN_PUNT_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/route.c b/hicn-plugin/src/route.c new file mode 100755 index 000000000..9202efbd4 --- /dev/null +++ b/hicn-plugin/src/route.c @@ -0,0 +1,392 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/fib/fib_entry.h> +#include <vnet/fib/fib_table.h> +#include <vnet/ip/ip6_packet.h> +#include <vnet/dpo/dpo.h> +#include <vnet/dpo/load_balance.h> +#include <vlib/global_funcs.h> + +#include "strategy_dpo_ctx.h" +#include "strategy_dpo_manager.h" +#include "strategy.h" +#include "faces/face.h" +#include "error.h" +#include "strategies/dpo_mw.h" + +int +hicn_route_get_dpo (const ip46_address_t * prefix, u8 plen, + const dpo_id_t ** hicn_dpo, u32 * fib_index) +{ + fib_prefix_t fib_pfx; + const dpo_id_t *load_balance_dpo_id; + const dpo_id_t *former_dpo_id; + int found = 0, ret = HICN_ERROR_ROUTE_NOT_FOUND; + fib_node_index_t fib_entry_index; + + /* At this point the face exists in the face table */ + fib_prefix_from_ip46_addr (prefix, &fib_pfx); + fib_pfx.fp_len = plen; + + + /* Check if the route already exist in the fib */ + /* + * ASSUMPTION: we use table 0 which is the default table and it is + * already existing and locked + */ + *fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = fib_table_lookup_exact_match (*fib_index, &fib_pfx); + + if (fib_entry_index != FIB_NODE_INDEX_INVALID) + { + /* Route already existing. We need to update the dpo. */ + load_balance_dpo_id = + fib_entry_contribute_ip_forwarding (fib_entry_index); + + /* The dpo is not a load balance dpo as expected */ + if (load_balance_dpo_id->dpoi_type != DPO_LOAD_BALANCE) + ret = HICN_ERROR_ROUTE_NO_LD; + else + { + /* former_dpo_id is a load_balance dpo */ + load_balance_t *lb = + load_balance_get (load_balance_dpo_id->dpoi_index); + + /* FIB entry exists but there is no hicn dpo. */ + ret = HICN_ERROR_ROUTE_DPO_NO_HICN; + for (int i = 0; i < lb->lb_n_buckets && !found; i++) + { + former_dpo_id = load_balance_get_bucket_i (lb, i); + + if (dpo_is_hicn (former_dpo_id)) + { + *hicn_dpo = former_dpo_id; + ret = HICN_ERROR_NONE; + found = 1; + } + } + } + } + /* + * Remove the lock from the table. We keep one lock per route, not + * per dpo + */ + fib_table_unlock (*fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + + return ret; +} + +/* Add a new route for a name prefix */ +int +hicn_route_add (hicn_face_id_t * face_id, u32 len, + const ip46_address_t * prefix, u8 plen) +{ + + fib_prefix_t fib_pfx; + dpo_id_t dpo = DPO_INVALID; + const dpo_id_t *hicn_dpo_id; + int ret = HICN_ERROR_NONE; + dpo_id_t face_dpo_tmp[HICN_PARAM_FIB_ENTRY_NHOPS_MAX]; + int n_face_dpo = 0; + index_t dpo_idx; + u32 fib_index; + vlib_main_t *vm = vlib_get_main (); + hicn_face_vft_t *face_vft = NULL; + + if (face_id == NULL) + { + return HICN_ERROR_ROUTE_INVAL; + } + /* + * Check is the faces are available, otherwise skip the face + * id_adjacency existance is not checked. It should be checked before + * sending a packet out + */ + for (int i = 0; i < clib_min (HICN_PARAM_FIB_ENTRY_NHOPS_MAX, len); i++) + { + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id[i]); + face_vft = hicn_face_get_vft (face->shared.face_type); + dpo_id_t face_dpo = DPO_INVALID; + face_vft->hicn_face_get_dpo (face, &face_dpo); + + if (!dpo_id_is_valid (&face_dpo)) + { + vlib_cli_output (vm, "Face %d not found, skip...\n", face_id[i]); + return ret; + } + else + { + face_dpo_tmp[n_face_dpo++] = face_dpo; + } + } + + ret = hicn_route_get_dpo (prefix, plen, &hicn_dpo_id, &fib_index); + + if (ret == HICN_ERROR_ROUTE_NOT_FOUND) + { + /* The Fib entry does not exist */ + /* At this point the face exists in the face table */ + fib_prefix_from_ip46_addr (prefix, &fib_pfx); + fib_pfx.fp_len = plen; + + dpo_id_t nhops[HICN_PARAM_FIB_ENTRY_NHOPS_MAX]; + for (int i = 0; i < n_face_dpo; i++) + { + clib_memcpy (&nhops[i], &face_dpo_tmp[i], sizeof (dpo_id_t)); + } + + ret = + default_dpo.hicn_dpo_create (fib_pfx.fp_proto, nhops, n_face_dpo, + &dpo_idx); + + if (ret) + { + return ret; + } + /* the value we got when we registered */ + /* + * This should be taken from the name?!? the index of the + * object + */ + dpo_set (&dpo, + default_dpo.hicn_dpo_get_type (), + (ip46_address_is_ip4 (prefix) ? DPO_PROTO_IP4 : DPO_PROTO_IP6), + dpo_idx); + + /* Here is where we create the "via" like route */ + /* + * For the moment we use the global one the prefix you want + * to match Neale suggested -- FIB_SOURCE_HICN the client + * that is adding them -- no easy explanation at this time… + */ + fib_node_index_t new_fib_node_index = + fib_table_entry_special_dpo_add (fib_index, + &fib_pfx, + FIB_SOURCE_PLUGIN_HI, + FIB_ENTRY_FLAG_EXCLUSIVE, + &dpo); + + /* We added a route, therefore add one lock to the table */ + fib_table_lock (fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + + dpo_unlock (&dpo); + ret = + (new_fib_node_index != + FIB_NODE_INDEX_INVALID) ? HICN_ERROR_NONE : + HICN_ERROR_ROUTE_NO_INSERT; + + /* + * TODO: we might want to store the fib index in the face. + * This will help to update the fib entries when a face is + * deleted. Fib_index_t is returned from + * fib_table_entry_special_dpo_add. + */ + } + else if (ret == HICN_ERROR_NONE) + { + ret = HICN_ERROR_ROUTE_ALREADY_EXISTS; + } + return ret; +} + +int +hicn_route_add_nhops (hicn_face_id_t * face_id, u32 len, + const ip46_address_t * prefix, u8 plen) +{ + const dpo_id_t *hicn_dpo_id; + int ret = HICN_ERROR_NONE; + dpo_id_t faces_dpo_tmp[HICN_PARAM_FIB_ENTRY_NHOPS_MAX]; + int n_face_dpo = 0; + const hicn_dpo_vft_t *dpo_vft; + u32 fib_index; + vlib_main_t *vm = vlib_get_main (); + hicn_face_vft_t *face_vft = NULL; + + if (face_id == NULL) + { + return HICN_ERROR_ROUTE_INVAL; + } + /* + * Check is the faces are available, otherwise skip the face + * id_adjacency existance is not checked. It should be checked before + * sending a packet out + */ + for (int i = 0; i < clib_min (HICN_PARAM_FIB_ENTRY_NHOPS_MAX, len); i++) + { + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id[i]); + face_vft = hicn_face_get_vft (face->shared.face_type); + dpo_id_t face_dpo = DPO_INVALID; + face_vft->hicn_face_get_dpo (face, &face_dpo); + + if (!dpo_id_is_valid (&face_dpo)) + { + vlib_cli_output (vm, "Face %d not found, skip...\n", face_id[i]); + return ret; + } + else + { + faces_dpo_tmp[n_face_dpo++] = face_dpo; + } + } + + ret = hicn_route_get_dpo (prefix, plen, &hicn_dpo_id, &fib_index); + + if (ret == HICN_ERROR_NONE) + { + for (int i = 0; i < n_face_dpo && (ret == HICN_ERROR_NONE); i++) + { + u32 vft_id = hicn_dpo_get_vft_id (hicn_dpo_id); + dpo_vft = hicn_dpo_get_vft (vft_id); + ret = dpo_vft->hicn_dpo_add_update_nh (&faces_dpo_tmp[i], + hicn_dpo_id->dpoi_index); + } + } + return ret; +} + +int +hicn_route_del (ip46_address_t * prefix, u8 plen) +{ + fib_prefix_t fib_pfx; + const dpo_id_t *hicn_dpo_id; + int ret = HICN_ERROR_NONE; + u32 fib_index; + + /* At this point the face exists in the face table */ + fib_prefix_from_ip46_addr (prefix, &fib_pfx); + fib_pfx.fp_len = plen; + + /* Remove the fib entry only if the dpo is of type hicn */ + ret = hicn_route_get_dpo (prefix, plen, &hicn_dpo_id, &fib_index); + + if (ret == HICN_ERROR_NONE) + { + fib_table_entry_special_remove (HICN_FIB_TABLE, &fib_pfx, + FIB_SOURCE_PLUGIN_HI); + + /* + * Remove the lock from the table. We keep one lock per route + */ + fib_table_unlock (fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + } + //Remember to remove the lock from the table when removing the entry + return ret; +} + +int +hicn_route_del_nhop (ip46_address_t * prefix, u8 plen, hicn_face_id_t face_id) +{ + + fib_prefix_t fib_pfx; + const dpo_id_t *hicn_dpo_id; + int ret; + u32 vft_id; + const hicn_dpo_vft_t *dpo_vft; + u32 fib_index; + + /* At this point the face exists in the face table */ + fib_prefix_from_ip46_addr (prefix, &fib_pfx); + fib_pfx.fp_len = plen; + + ret = hicn_route_get_dpo (prefix, plen, &hicn_dpo_id, &fib_index); + + /* Check if the dpo is an hicn_dpo_t */ + if (ret == HICN_ERROR_NONE) + { + vft_id = hicn_dpo_get_vft_id (hicn_dpo_id); + dpo_vft = hicn_dpo_get_vft (vft_id); + return dpo_vft->hicn_dpo_del_nh (face_id, hicn_dpo_id->dpoi_index, + &fib_pfx); + } + //Remember to remove the lock from the table when removing the entry + return ret; +} + +int +hicn_route_set_strategy (ip46_address_t * prefix, u8 plen, u8 strategy_id) +{ + fib_prefix_t fib_pfx; + const dpo_id_t *hicn_dpo_id; + dpo_id_t new_dpo_id = DPO_INVALID; + int ret; + hicn_dpo_ctx_t *old_hicn_dpo_ctx; + const hicn_dpo_vft_t *old_dpo_vft; + const hicn_dpo_vft_t *new_dpo_vft; + index_t new_hicn_dpo_idx; + u32 fib_index; + u32 old_vft_id; + + /* At this point the face exists in the face table */ + fib_prefix_from_ip46_addr (prefix, &fib_pfx); + fib_pfx.fp_len = plen; + + ret = hicn_route_get_dpo (prefix, plen, &hicn_dpo_id, &fib_index); + + if (ret == HICN_ERROR_NONE) + { + old_vft_id = hicn_dpo_get_vft_id (hicn_dpo_id); + old_dpo_vft = hicn_dpo_get_vft (old_vft_id); + old_hicn_dpo_ctx = + old_dpo_vft->hicn_dpo_get_ctx (hicn_dpo_id->dpoi_index); + + new_dpo_vft = hicn_dpo_get_vft_from_id (strategy_id); + + if (new_dpo_vft == NULL) + return HICN_ERROR_STRATEGY_NOT_FOUND; + + /* Create a new dpo for the new strategy */ + new_dpo_vft->hicn_dpo_create (hicn_dpo_id->dpoi_proto, + old_hicn_dpo_ctx->next_hops, + old_hicn_dpo_ctx->entry_count, + &new_hicn_dpo_idx); + + /* the value we got when we registered */ + dpo_set (&new_dpo_id, + new_dpo_vft->hicn_dpo_get_type (), + (ip46_address_is_ip4 (prefix) ? DPO_PROTO_IP4 : + DPO_PROTO_IP6), new_hicn_dpo_idx); + + /* Here is where we create the "via" like route */ + /* + * For the moment we use the global one the prefix you want + * to match Neale suggested -- FIB_SOURCE_HICN the client + * that is adding them -- no easy explanation at this time… + */ + fib_node_index_t new_fib_node_index = + fib_table_entry_special_dpo_update (fib_index, + &fib_pfx, + FIB_SOURCE_PLUGIN_HI, + FIB_ENTRY_FLAG_EXCLUSIVE, + &new_dpo_id); + + dpo_unlock (&new_dpo_id); + ret = + (new_fib_node_index != + FIB_NODE_INDEX_INVALID) ? HICN_ERROR_NONE : + HICN_ERROR_ROUTE_NOT_UPDATED; + } + //Remember to remove the lock from the table when removing the entry + return ret; + +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/route.h b/hicn-plugin/src/route.h new file mode 100755 index 000000000..be15b9906 --- /dev/null +++ b/hicn-plugin/src/route.h @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_ROUTE__ +#define __HICN_ROUTE__ + +#include <vlib/vlib.h> +#include <vppinfra/error.h> +#include "hicn.h" +#include "faces/face.h" + +/* + * Retrieve the hicn dpo corresponding to a hicn prefix + */ +int +hicn_route_get_dpo (const ip46_address_t * prefix, u8 plen, + const dpo_id_t ** hicn_dpo, u32 * fib_index); + +/* + * Add a new route for a name prefix + */ +int +hicn_route_add (hicn_face_id_t * face_id, u32 len, + const ip46_address_t * prefix, u8 plen); + +/* + * Add new next hops for a prefix route + */ +int +hicn_route_add_nhops (hicn_face_id_t * face_id, u32 len, + const ip46_address_t * prefix, u8 plen); + +/* Remove a route for a name prefix */ +int hicn_route_del (ip46_address_t * prefix, u8 plen); + +/* Remove a next hop route for a name prefix */ +int hicn_route_del_nhop (ip46_address_t * prefix, u8 plen, u32 face_id); + +/* Remove a next hop route for a name prefix */ +int +hicn_route_set_strategy (ip46_address_t * prefix, u8 plen, u32 strategy_id); + +#endif /* //__HICN_ROUTE__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/state.h b/hicn-plugin/src/state.h new file mode 100755 index 000000000..7e984e6c3 --- /dev/null +++ b/hicn-plugin/src/state.h @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_STATE__ +#define __HICN_STATE__ + +#include <netinet/in.h> +#include <vnet/buffer.h> + +#include "hicn.h" +#include "pcs.h" +#include "hashtb.h" +#include "strategy.h" +#include "strategy_dpo_ctx.h" +#include "strategy_dpo_manager.h" + +always_inline void +hicn_prefetch_pcs_entry (hicn_buffer_t * hicnb, hicn_pit_cs_t * pitcs) +{ + hicn_hash_node_t *node = pool_elt_at_index (pitcs->pcs_table->ht_nodes, + hicnb->node_id); + + hicn_hash_bucket_t *bucket; + if (hicnb->hash_bucket_flags & HICN_HASH_NODE_OVERFLOW_BUCKET) + bucket = + pool_elt_at_index (pitcs->pcs_table->ht_overflow_buckets, + hicnb->bucket_id); + else + bucket = + (hicn_hash_bucket_t *) (pitcs->pcs_table->ht_buckets + + hicnb->bucket_id); + + CLIB_PREFETCH (node, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (bucket, CLIB_CACHE_LINE_BYTES, STORE); +} + +always_inline void +hicn_get_internal_state (hicn_buffer_t * hicnb, hicn_pit_cs_t * pitcs, + hicn_hash_node_t ** node, + const hicn_strategy_vft_t ** strategy_vft, + const hicn_dpo_vft_t ** dpo_vft, u8 * dpo_ctx_id, + hicn_hash_entry_t ** hash_entry) +{ + *node = pool_elt_at_index (pitcs->pcs_table->ht_nodes, hicnb->node_id); + *strategy_vft = hicn_dpo_get_strategy_vft (hicnb->vft_id); + *dpo_vft = hicn_dpo_get_vft (hicnb->vft_id); + *dpo_ctx_id = hicnb->dpo_ctx_id; + + hicn_hash_bucket_t *bucket; + if (hicnb->hash_bucket_flags & HICN_HASH_NODE_OVERFLOW_BUCKET) + bucket = + pool_elt_at_index (pitcs->pcs_table->ht_overflow_buckets, + hicnb->bucket_id); + else + bucket = + (hicn_hash_bucket_t *) (pitcs->pcs_table->ht_buckets + + hicnb->bucket_id); + + *hash_entry = &(bucket->hb_entries[hicnb->hash_entry_id]); +} + +/* + * This function set the PCS entry index, the dpo index and the vft index in + * the opaque2 buffer. In this way, the interest-hitpit and interest-hitcs + * nodes can prefetch the corresponding state (PIT entry, dpo_ctx and the + * strategy vft + */ +always_inline void +hicn_store_internal_state (vlib_buffer_t * b, u64 name_hash, u32 node_id, + u8 dpo_ctx_id, u8 vft_id, u8 hash_entry_id, + u32 bucket_id, u8 bucket_is_overflow) +{ + hicn_buffer_t *hicnb = hicn_get_buffer (b); + hicnb->name_hash = name_hash; + hicnb->node_id = node_id; + hicnb->dpo_ctx_id = dpo_ctx_id; + hicnb->vft_id = vft_id; + hicnb->hash_entry_id = hash_entry_id; + hicnb->bucket_id = bucket_id; + hicnb->hash_bucket_flags = + HICN_HASH_NODE_OVERFLOW_BUCKET * bucket_is_overflow; +} + +#endif /* // __HICN_STATE__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/strategies/dpo_mw.c b/hicn-plugin/src/strategies/dpo_mw.c new file mode 100755 index 000000000..882368e6e --- /dev/null +++ b/hicn-plugin/src/strategies/dpo_mw.c @@ -0,0 +1,305 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "../strategy_dpo_ctx.h" +#include "dpo_mw.h" +#include "strategy_mw.h" +#include "../strategy_dpo_manager.h" + +hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx_pool; + +const static char *const hicn_ip6_nodes[] = { + "hicn-mw-strategy", // this is the name you give your node in VLIB_REGISTER_NODE + NULL, +}; + +const static char *const hicn_ip4_nodes[] = { + "hicn-mw-strategy", // this is the name you give your node in VLIB_REGISTER_NODE + NULL, +}; + +const static char *const *const hicn_nodes_mw[DPO_PROTO_NUM] = { + [DPO_PROTO_IP6] = hicn_ip6_nodes, + [DPO_PROTO_IP4] = hicn_ip4_nodes, +}; + +/** + * @brief DPO type value for the mw_strategy + */ +static dpo_type_t hicn_dpo_type_mw; + +static const hicn_dpo_vft_t hicn_dpo_mw_vft = { + .hicn_dpo_get_ctx = &hicn_strategy_mw_ctx_get, + .hicn_dpo_is_type = &hicn_dpo_is_type_strategy_mw, + .hicn_dpo_get_type = &hicn_dpo_strategy_mw_get_type, + .hicn_dpo_module_init = &hicn_dpo_strategy_mw_module_init, + .hicn_dpo_create = &hicn_strategy_mw_ctx_create, + .hicn_dpo_add_update_nh = &hicn_strategy_mw_ctx_add_nh, + .hicn_dpo_del_nh = &hicn_strategy_mw_ctx_del_nh, + .hicn_dpo_lock_dpo_ctx = &hicn_strategy_mw_ctx_lock, + .hicn_dpo_unlock_dpo_ctx = hicn_strategy_mw_ctx_unlock, + .format_hicn_dpo = &format_hicn_dpo_strategy_mw +}; + +int +hicn_dpo_is_type_strategy_mw (const dpo_id_t * dpo) +{ + return dpo->dpoi_type == hicn_dpo_type_mw; +} + +void +hicn_dpo_strategy_mw_module_init (void) +{ + pool_validate_index (hicn_strategy_mw_ctx_pool, 0); + /* + * Register our type of dpo + */ + hicn_dpo_type_mw = + hicn_dpo_register_new_type (hicn_nodes_mw, &hicn_dpo_mw_vft, + hicn_mw_strategy_get_vft (), + &dpo_strategy_mw_ctx_vft); +} + +u8 * +format_hicn_dpo_strategy_mw (u8 * s, va_list * ap) +{ + + u32 indent = va_arg (*ap, u32); + s = + format (s, + "Static Weights: weights are updated by the control plane, next hop is the one with the maximum weight.\n", + indent); + return (s); +} + +dpo_type_t +hicn_dpo_strategy_mw_get_type (void) +{ + return hicn_dpo_type_mw; +} + +////////////////////////////////////////////////////////////////////////////////////////////////// + +void +hicn_strategy_mw_ctx_lock (dpo_id_t * dpo) +{ + hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx = + (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (dpo->dpoi_index); + hicn_strategy_mw_ctx->default_ctx.locks++; +} + +void +hicn_strategy_mw_ctx_unlock (dpo_id_t * dpo) +{ + hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx = + (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (dpo->dpoi_index); + hicn_strategy_mw_ctx->default_ctx.locks--; + + if (0 == hicn_strategy_mw_ctx->default_ctx.locks) + { + pool_put (hicn_strategy_mw_ctx_pool, hicn_strategy_mw_ctx); + } +} + +u8 * +format_hicn_strategy_mw_ctx (u8 * s, va_list * ap) +{ + int i = 0; + index_t index = va_arg (*ap, index_t); + hicn_strategy_mw_ctx_t *dpo = NULL; + dpo_id_t *next_hop = NULL; + hicn_face_vft_t *face_vft = NULL; + u32 indent = va_arg (*ap, u32);; + + dpo = (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (index); + + s = format (s, "hicn-mw"); + for (i = 0; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX; i++) + { + next_hop = &dpo->default_ctx.next_hops[i]; + face_vft = hicn_face_get_vft (next_hop->dpoi_type); + if (face_vft != NULL) + { + s = format (s, "\n"); + s = + format (s, "%U ", face_vft->format_face, next_hop->dpoi_index, + indent); + s = format (s, "weight %u", dpo->weight[i]); + } + } + + return (s); +} + +static index_t +hicn_strategy_mw_ctx_get_index (hicn_strategy_mw_ctx_t * cd) +{ + return (cd - hicn_strategy_mw_ctx_pool); +} + +int +hicn_strategy_mw_ctx_create (dpo_proto_t proto, const dpo_id_t * next_hop, + int nh_len, index_t * dpo_idx) +{ + hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx; + int ret = HICN_ERROR_NONE, i; + dpo_id_t invalid = NEXT_HOP_INVALID; + + /* Allocate a hicn_dpo_ctx on the vpp pool and initialize it */ + pool_get (hicn_strategy_mw_ctx_pool, hicn_strategy_mw_ctx); + + *dpo_idx = hicn_strategy_mw_ctx_get_index (hicn_strategy_mw_ctx); + for (int i = 0; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX; i++) + { + hicn_strategy_mw_ctx->default_ctx.next_hops[i] = invalid; + } + + hicn_strategy_mw_ctx->default_ctx.entry_count = 0; + hicn_strategy_mw_ctx->default_ctx.locks = 0; + + for (i = 0; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX && i < nh_len; i++) + { + clib_memcpy (&hicn_strategy_mw_ctx->default_ctx.next_hops[i], + &next_hop[i], sizeof (dpo_id_t)); + hicn_strategy_mw_ctx->default_ctx.entry_count++; + } + + memset (hicn_strategy_mw_ctx->weight, 0, HICN_PARAM_FIB_ENTRY_NHOPS_MAX); + + return ret; +} + +hicn_dpo_ctx_t * +hicn_strategy_mw_ctx_get (index_t index) +{ + hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx = NULL; + if (!pool_is_free_index (hicn_strategy_mw_ctx_pool, index)) + { + hicn_strategy_mw_ctx = + (pool_elt_at_index (hicn_strategy_mw_ctx_pool, index)); + } + return &hicn_strategy_mw_ctx->default_ctx; +} + +int +hicn_strategy_mw_ctx_add_nh (const dpo_id_t * nh, index_t dpo_idx) +{ + hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx = + (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (dpo_idx); + + if (hicn_strategy_mw_ctx != NULL) + { + + int empty = hicn_strategy_mw_ctx->default_ctx.entry_count; + + /* Iterate through the list of faces to add new faces */ + for (int i = 0; i < hicn_strategy_mw_ctx->default_ctx.entry_count; i++) + { + if (!memcmp + (nh, &hicn_strategy_mw_ctx->default_ctx.next_hops[i], + sizeof (dpo_id_t))) + { + /* If face is marked as deleted, ignore it */ + hicn_face_t *face = + hicn_dpoi_get_from_idx (hicn_strategy_mw_ctx-> + default_ctx.next_hops[i].dpoi_index); + if (face->shared.flags & HICN_FACE_FLAGS_DELETED) + { + continue; + } + return HICN_ERROR_DPO_CTX_NHOPS_EXISTS; + } + } + + /* Get an empty place */ + if (empty > HICN_PARAM_FIB_ENTRY_NHOPS_MAX) + { + return HICN_ERROR_DPO_CTX_NHOPS_NS; + } + if (PREDICT_FALSE (empty > HICN_PARAM_FIB_ENTRY_NHOPS_MAX)) + { + return HICN_ERROR_DPO_CTX_NHOPS_NS; + } + clib_memcpy (&hicn_strategy_mw_ctx->default_ctx.next_hops[empty], nh, + sizeof (dpo_id_t)); + hicn_strategy_mw_ctx->default_ctx.entry_count++; + + return HICN_ERROR_NONE; + } + return HICN_ERROR_DPO_CTX_NOT_FOUND; +} + +int +hicn_strategy_mw_ctx_del_nh (hicn_face_id_t face_id, index_t dpo_idx, + fib_prefix_t * fib_pfx) +{ + hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx = + (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (dpo_idx); + int ret = HICN_ERROR_NONE; + int nh_id = ~0; + dpo_id_t invalid = NEXT_HOP_INVALID; + + if (hicn_strategy_mw_ctx != NULL) + { + for (int i = 0; i < hicn_strategy_mw_ctx->default_ctx.entry_count; i++) + { + if (hicn_strategy_mw_ctx->default_ctx.next_hops[i].dpoi_index == + face_id) + { + nh_id = i; + hicn_face_unlock (&hicn_strategy_mw_ctx->default_ctx. + next_hops[i]); + hicn_strategy_mw_ctx->default_ctx.next_hops[i] = invalid; + hicn_strategy_mw_ctx->default_ctx.entry_count--; + } + } + + if (0 == hicn_strategy_mw_ctx->default_ctx.entry_count) + { + fib_table_entry_special_remove (HICN_FIB_TABLE, fib_pfx, + FIB_SOURCE_PLUGIN_HI); + } + } + else + { + ret = HICN_ERROR_DPO_CTX_NOT_FOUND; + } + + /* + * Remove any possible hole in the arrays of dpos + */ + if (hicn_strategy_mw_ctx->default_ctx.entry_count > 0 && nh_id != ~0 + && nh_id < hicn_strategy_mw_ctx->default_ctx.entry_count - 1) + { + int i; + for (i = nh_id; i < hicn_strategy_mw_ctx->default_ctx.entry_count; i++) + { + clib_memcpy (&hicn_strategy_mw_ctx->default_ctx.next_hops[i], + &hicn_strategy_mw_ctx->default_ctx.next_hops[i + 1], + sizeof (dpo_id_t)); + } + /* Set as invalid the last dpo */ + hicn_strategy_mw_ctx->default_ctx.next_hops[i] = invalid; + } + return ret; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/strategies/dpo_mw.h b/hicn-plugin/src/strategies/dpo_mw.h new file mode 100755 index 000000000..a8c0a3b43 --- /dev/null +++ b/hicn-plugin/src/strategies/dpo_mw.h @@ -0,0 +1,131 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_DPO_MW_H__ +#define __HICN_DPO_MW_H__ + +#include <vnet/dpo/dpo.h> +#include "../strategy_dpo_ctx.h" + +typedef struct hicn_strategy_mw_ctx_s +{ + hicn_dpo_ctx_t default_ctx; + + u8 weight[HICN_PARAM_FIB_ENTRY_NHOPS_MAX]; +} hicn_strategy_mw_ctx_t; + +/** + * @brief Lock the mw ctx + * + * @param dpo Identifier of the dpo of the mw ctx + */ +void hicn_strategy_mw_ctx_lock (dpo_id_t * dpo); + +/** + * @brief Unlock the mw ctx + * + * @param dpo Identifier of the dpo of the mw ctx + */ +void hicn_strategy_mw_ctx_unlock (dpo_id_t * dpo); + +/** + * @brief Format the dpo ctx for a human-readable string + * + * @param s String to which to append the formatted dpo ctx + * @param ap List of parameters for the formatting + * + * @result The string with the formatted dpo ctx + */ +u8 *format_hicn_strategy_mw_ctx (u8 * s, va_list * ap); + +const static dpo_vft_t dpo_strategy_mw_ctx_vft = { + .dv_lock = hicn_strategy_mw_ctx_lock, + .dv_unlock = hicn_strategy_mw_ctx_unlock, + .dv_format = format_hicn_strategy_mw_ctx, +}; + +/** + * @brief Retrieve an hicn_strategy_mw_ctx object + * + * @param indext Index of the hicn_dpo_ctx to retrieve + * @return The hicn_dpo_ctx object or NULL + */ +hicn_dpo_ctx_t *hicn_strategy_mw_ctx_get (index_t index); + +/** + * @brief Create a new mw ctx + * + * @param proto The protocol to which the dpo is meant for (see vpp docs) + * @param next_hop A list of next hops to be inserted in the dpo ctx + * @param nh_len Size of the list + * @param dpo_idx index_t that will hold the index of the created dpo ctx + * @return HICN_ERROR_NONE if the creation was fine, otherwise EINVAL + */ +int +hicn_strategy_mw_ctx_create (dpo_proto_t proto, const dpo_id_t * next_hop, + int nh_len, index_t * dpo_idx); + +/** + * @brief Add or update a next hop in the dpo ctx. + * + * This function is meant to be used in the control plane and not in the data plane, + * as it is not optimized for the latter. + * + * @param nh Next hop to insert in the dpo ctx + * @param dpo_idx Index of the dpo ctx to update with the new or updated next + * hop + * @return HICN_ERROR_NONE if the update or insert was fine, + * otherwise HICN_ERROR_DPO_CTX_NOT_FOUND + */ +int hicn_strategy_mw_ctx_add_nh (const dpo_id_t * nh, index_t dpo_idx); + +/** + * @brief Delete a next hop in the dpo ctx. + * + * @param face_id Face identifier of the next hop + * @param dpo_idx Index of the dpo ctx to update with the new or updated next + * hop + * @return HICN_ERROR_NONE if the update or insert was fine, + * otherwise HICN_ERROR_DPO_CTS_NOT_FOUND + */ +int +hicn_strategy_mw_ctx_del_nh (hicn_face_id_t face_id, index_t dpo_idx, + fib_prefix_t * fib_pfx); + +/** + * @brief Prefetch a dpo + * + * @param dpo_idx Index of the dpo ctx to prefetch + */ +void hicn_strategy_mw_ctx_prefetch (index_t dpo_idx); + +int hicn_dpo_is_type_strategy_mw (const dpo_id_t * dpo); + +void hicn_dpo_strategy_mw_module_init (void); + +dpo_type_t hicn_dpo_strategy_mw_get_type (void); + +u8 *format_hicn_dpo_strategy_mw (u8 * s, va_list * ap); + + +#endif // __HICN_DPO_MW_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/strategies/strategy_mw.c b/hicn-plugin/src/strategies/strategy_mw.c new file mode 100755 index 000000000..144dd145e --- /dev/null +++ b/hicn-plugin/src/strategies/strategy_mw.c @@ -0,0 +1,171 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "../strategy.h" +#include "../strategy_dpo_ctx.h" +#include "dpo_mw.h" +#include "../faces/face.h" +#include "../route.h" +#include "../pcs.h" +#include "../strategy_dpo_manager.h" + +/* Simple strategy that chooses the next hop with the maximum weight */ +/* It does not require to exend the hicn_dpo */ +void hicn_receive_data_mw (index_t dpo_idx, int nh_idx); +void hicn_add_interest_mw (index_t dpo_idx, hicn_hash_entry_t * pit_entry); +void hicn_on_interest_timeout_mw (index_t dpo_idx); +u32 hicn_select_next_hop_mw (index_t dpo_idx, int *nh_idx, + dpo_id_t ** outface); +u32 get_strategy_node_index_mw (void); + +static hicn_strategy_vft_t hicn_strategy_mw_vft = { + .hicn_receive_data = &hicn_receive_data_mw, + .hicn_add_interest = &hicn_add_interest_mw, + .hicn_on_interest_timeout = &hicn_on_interest_timeout_mw, + .hicn_select_next_hop = &hicn_select_next_hop_mw, + .get_strategy_node_index = get_strategy_node_index_mw +}; + +/* Stats string values */ +static char *hicn_strategy_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* + * Return the vft of the strategy. + */ +hicn_strategy_vft_t * +hicn_mw_strategy_get_vft (void) +{ + return &hicn_strategy_mw_vft; +} + +/* Registration struct for a graph node */ +vlib_node_registration_t hicn_mw_strategy_node; + +u32 +get_strategy_node_index_mw (void) +{ + return hicn_mw_strategy_node.index; +} + +/* DPO should be give in input as it containes all the information to calculate the next hops*/ +u32 +hicn_select_next_hop_mw (index_t dpo_idx, int *nh_idx, dpo_id_t ** outface) +{ + hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx = + (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (dpo_idx); + + u8 next_hop_index = 0; + for (int i = 0; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX; i++) + { + if (dpo_id_is_valid (&hicn_strategy_mw_ctx->default_ctx.next_hops[i])) + { + if (hicn_strategy_mw_ctx->weight[next_hop_index] < + hicn_strategy_mw_ctx->weight[i]) + { + next_hop_index = i; + } + } + } + + if (!dpo_id_is_valid + (&hicn_strategy_mw_ctx->default_ctx.next_hops[next_hop_index])) + return HICN_ERROR_MW_STRATEGY_NH_NOT_FOUND; + + *outface = + (dpo_id_t *) & hicn_strategy_mw_ctx->default_ctx. + next_hops[next_hop_index]; + + return HICN_ERROR_NONE; +} + +uword +hicn_mw_strategy_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + return hicn_forward_interest_fn (vm, node, frame, &hicn_strategy_mw_vft, + &hicn_mw_strategy_node); +} + +void +hicn_add_interest_mw (index_t dpo_ctx_idx, hicn_hash_entry_t * hash_entry) +{ + hash_entry->dpo_ctx_id = dpo_ctx_idx; + dpo_id_t hicn_dpo_id = + { hicn_dpo_strategy_mw_get_type (), 0, 0, dpo_ctx_idx }; + hicn_strategy_mw_ctx_lock (&hicn_dpo_id); + hash_entry->vft_id = hicn_dpo_get_vft_id (&hicn_dpo_id); +} + +void +hicn_on_interest_timeout_mw (index_t dpo_idx) +{ + /* Nothign to do in the mw strategy when we receive an interest */ +} + +void +hicn_receive_data_mw (index_t dpo_idx, int nh_idx) +{ +} + + +/* packet trace format function */ +static u8 * +hicn_strategy_format_trace_mw (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + hicn_strategy_trace_t *t = va_arg (*args, hicn_strategy_trace_t *); + + s = format (s, "Strategy_mw: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_mw_strategy_node) = +{ + .name = "hicn-mw-strategy", + .function = hicn_mw_strategy_node_fn, + .vector_size = sizeof (u32), + .runtime_data_bytes = sizeof (int) + sizeof(hicn_pit_cs_t *), + .format_trace = hicn_strategy_format_trace_mw, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_strategy_error_strings), + .error_strings = hicn_strategy_error_strings, + .n_next_nodes = HICN_STRATEGY_N_NEXT, + .next_nodes = { + [HICN_STRATEGY_NEXT_INTEREST_HITPIT] = "hicn-interest-hitpit", + [HICN_STRATEGY_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/strategies/strategy_mw.h b/hicn-plugin/src/strategies/strategy_mw.h new file mode 100755 index 000000000..10b08c05f --- /dev/null +++ b/hicn-plugin/src/strategies/strategy_mw.h @@ -0,0 +1,31 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_STRATEGY_MW_H__ +#define __HICN_STRATEGY_MW_H__ + +#include "../strategy.h" + +hicn_strategy_vft_t *hicn_mw_strategy_get_vft (void); + +#endif // __HICN_STRATEGY_MW_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/strategies/strategy_mw_cli.c b/hicn-plugin/src/strategies/strategy_mw_cli.c new file mode 100755 index 000000000..ff4125258 --- /dev/null +++ b/hicn-plugin/src/strategies/strategy_mw_cli.c @@ -0,0 +1,148 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/vnet.h> +#include <vnet/dpo/dpo.h> +#include <vlib/vlib.h> +#include <vnet/fib/fib_entry.h> +#include <vnet/fib/fib_table.h> + +#include "../strategy_dpo_manager.h" +#include "../faces/face.h" +#include "../error.h" +#include "../route.h" +#include "dpo_mw.h" + +static clib_error_t * +hicn_mw_strategy_cli_set_weight_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + clib_error_t *cl_err = 0; + int ret = HICN_ERROR_NONE; + ip46_address_t prefix; + hicn_face_id_t faceid = HICN_FACE_NULL; + u32 fib_index; + u32 weight = HICN_PARAM_FIB_ENTRY_NHOP_WGHT_DFLT; + u32 plen = 0; + hicn_dpo_ctx_t *hicn_dpo_ctx; + const dpo_id_t *hicn_dpo_id; + u32 vft_id; + const hicn_dpo_vft_t *dpo_vft; + + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (unformat_user (main_input, unformat_line_input, line_input)) + { + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "prefix %U/%u", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &plen)) + ; + else if (unformat (line_input, "face %u", &faceid)) + ; + else if (unformat (line_input, "weight %u", &weight)) + ; + else + { + return clib_error_return (0, "%s", + get_error_string + (HICN_ERROR_CLI_INVAL)); + } + + } + } + + if (((weight < 0) || (weight > HICN_PARAM_FIB_ENTRY_NHOP_WGHT_MAX))) + { + cl_err = clib_error_return (0, + "Next-hop weight must be between 0 and %d", + (int) HICN_PARAM_FIB_ENTRY_NHOP_WGHT_MAX); + goto done; + } + + if (((ip46_address_is_zero (&prefix)) || faceid == HICN_FACE_NULL)) + { + cl_err = + clib_error_return (0, "Please specify prefix and a valid faceid..."); + goto done; + } + + fib_prefix_t fib_pfx; + fib_prefix_from_ip46_addr (&prefix, &fib_pfx); + fib_pfx.fp_len = plen; + + ret = hicn_route_get_dpo (&prefix, plen, &hicn_dpo_id, &fib_index); + + if (ret == HICN_ERROR_NONE) + { + vft_id = hicn_dpo_get_vft_id (hicn_dpo_id); + dpo_vft = hicn_dpo_get_vft (vft_id); + hicn_dpo_ctx = dpo_vft->hicn_dpo_get_ctx (hicn_dpo_id->dpoi_index); + + if (hicn_dpo_ctx == NULL + || hicn_dpo_id->dpoi_type != hicn_dpo_strategy_mw_get_type ()) + { + cl_err = clib_error_return (0, get_error_string (ret)); + goto done; + } + + hicn_strategy_mw_ctx_t *mw_dpo = + (hicn_strategy_mw_ctx_t *) hicn_dpo_ctx; + int idx = ~0; + for (int i = 0; i < hicn_dpo_ctx->entry_count; i++) + if (hicn_dpo_ctx->next_hops[i].dpoi_index == (index_t) faceid) + idx = i; + + if (idx == ~0) + { + cl_err = + clib_error_return (0, + get_error_string + (HICN_ERROR_MW_STRATEGY_NH_NOT_FOUND)); + goto done; + } + + mw_dpo->weight[idx] = weight; + } + else + { + cl_err = clib_error_return (0, get_error_string (ret)); + + } + +done: + + return (cl_err); + +} + +/* cli declaration for 'strategy mw' */ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND(hicn_mw_strategy_cli_set_weight_command, static)= +{ + .path = "hicn strategy mw set", + .short_help = "hicn strategy mw set prefix <prefix> face <face_id> weight <weight>", + .function = hicn_mw_strategy_cli_set_weight_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/strategy.c b/hicn-plugin/src/strategy.c new file mode 100755 index 000000000..56de34e6b --- /dev/null +++ b/hicn-plugin/src/strategy.c @@ -0,0 +1,265 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "hicn.h" +#include "parser.h" +#include "strategy.h" +#include "strategy_dpo_ctx.h" +#include "face_db.h" +#include "infra.h" +#include "mgmt.h" +#include "pcs.h" +#include "state.h" + +/* + * Node context data (to be used in all the strategy nodes); we think this is + * per-thread/instance + */ +typedef struct hicn_strategy_runtime_s +{ + int id; + hicn_pit_cs_t *pitcs; +} hicn_strategy_runtime_t; + +always_inline int +hicn_new_interest (hicn_strategy_runtime_t * rt, vlib_buffer_t * b0, + u32 * next, f64 tnow, u8 * nameptr, + u16 namelen, dpo_id_t * outface, int nh_idx, + index_t hicn_dpo_idx, hicn_strategy_vft_t * strategy, + u8 isv6, vl_api_hicn_api_node_stats_get_reply_t * stats) +{ + int ret; + hicn_hash_node_t *nodep; + hicn_pcs_entry_t *pitp; + hicn_header_t *hicn0; + hicn_main_t *sm = &hicn_main; + hicn_buffer_t *hicnb0 = hicn_get_buffer (b0); + u32 node_id0 = 0; + u8 dpo_ctx_id0 = 0; + u8 vft_id0 = 0; + u8 is_cs0 = 0; + u8 hash_entry_id = 0; + u8 bucket_is_overflow = 0; + u32 bucket_id = ~0; + + + /* Create PIT node and init PIT entry */ + nodep = hicn_hashtb_alloc_node (rt->pitcs->pcs_table); + if (PREDICT_FALSE (nodep == NULL)) + { + /* Nothing we can do - no mem */ + *next = HICN_STRATEGY_NEXT_ERROR_DROP; + return HICN_ERROR_HASHTB_NOMEM; + } + pitp = hicn_pit_get_data (nodep); + hicn_pit_init_data (pitp); + pitp->shared.create_time = tnow; + + hicn0 = vlib_buffer_get_current (b0); + hicn_lifetime_t imsg_lifetime; + hicn_type_t type = hicnb0->type; + hicn_ops_vft[type.l1]->get_lifetime (type, &hicn0->protocol, + &imsg_lifetime); + + if (imsg_lifetime < sm->pit_lifetime_min_ms + || imsg_lifetime > sm->pit_lifetime_max_ms) + { + imsg_lifetime = sm->pit_lifetime_dflt_ms; + } + pitp->shared.expire_time = hicn_pcs_get_exp_time (tnow, imsg_lifetime); + + /* Set up the hash node and insert it */ + hicn_hash_entry_t *hash_entry; + hicn_hashtb_init_node (rt->pitcs->pcs_table, nodep, nameptr, namelen); + + ret = + hicn_pcs_pit_insert (rt->pitcs, pitp, nodep, &hash_entry, + hicnb0->name_hash, &node_id0, &dpo_ctx_id0, &vft_id0, + &is_cs0, &hash_entry_id, &bucket_id, + &bucket_is_overflow); + if (ret == HICN_ERROR_NONE) + { + strategy->hicn_add_interest (vnet_buffer (b0)->ip.adj_index[VLIB_TX], + hash_entry); + + /* Add face */ + hicn_face_db_add_face_dpo (&hicnb0->face_dpo_id, &(pitp->u.pit.faces)); + + /* Remove lock on the dpo stored in the vlib_buffer */ + dpo_unlock (&hicnb0->face_dpo_id); + + *next = outface->dpoi_next_node; + + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = outface->dpoi_index; + stats->pkts_interest_count++; + } + else + { + /* Interest aggregate in PIT */ + if (ret == HICN_ERROR_HASHTB_EXIST) + { + hicn_store_internal_state (b0, hicnb0->name_hash, node_id0, + dpo_ctx_id0, vft_id0, hash_entry_id, + bucket_id, bucket_is_overflow); + *next = HICN_STRATEGY_NEXT_INTEREST_HITPIT; + } + else + { + /* Send the packet to the interest-hitpit node */ + *next = HICN_STRATEGY_NEXT_ERROR_DROP; + } + hicn_faces_flush (&(pitp->u.pit.faces)); + hicn_hashtb_free_node (rt->pitcs->pcs_table, nodep); + } + + return (ret); + +} + +/* + * ICN strategy later node for interests: - 1 packet at a time - ipv4/tcp + * ipv6/tcp + */ +uword +hicn_forward_interest_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame, + hicn_strategy_vft_t * strategy, + vlib_node_registration_t * hicn_strategy_node) +{ + + u32 n_left_from, *from, *to_next, n_left_to_next; + hicn_strategy_next_t next_index; + hicn_strategy_runtime_t *rt; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + f64 tnow; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = (hicn_strategy_next_t) node->cached_next_index; + rt = vlib_node_get_runtime_data (vm, hicn_strategy_node->index); + rt->pitcs = &hicn_main.pitcs; + /* Capture time in vpp terms */ + tnow = vlib_time_now (vm); + + while (n_left_from > 0) + { + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + while (n_left_from > 0 && n_left_to_next > 0) + { + u8 isv6; + u8 *nameptr; + u16 namelen; + hicn_name_t name; + hicn_header_t *hicn0; + vlib_buffer_t *b0; + u32 bi0; + dpo_id_t *outface = NULL; + int nh_idx; + u32 next0 = next_index; + int ret; + + /* Prefetch for next iteration. */ + if (n_left_from > 1) + { + vlib_buffer_t *b1; + b1 = vlib_get_buffer (vm, from[1]); + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (&b1->trace_index, 2 * CLIB_CACHE_LINE_BYTES, + STORE); + } + /* Dequeue a packet buffer */ + bi0 = from[0]; + from += 1; + n_left_from -= 1; + to_next[0] = bi0; + to_next += 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + next0 = HICN_STRATEGY_NEXT_ERROR_DROP; + + ret = hicn_interest_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); + + stats.pkts_processed++; + /* Select next hop */ + /* + * Double check that the interest has been through + * the interest-pcslookup node due to misconfiguration in + * the punting rules. + */ + if (PREDICT_TRUE + (ret == HICN_ERROR_NONE && HICN_IS_NAMEHASH_CACHED (b0) + && strategy->hicn_select_next_hop (vnet_buffer (b0)-> + ip.adj_index[VLIB_TX], + &nh_idx, + &outface) == + HICN_ERROR_NONE)) + { + /* + * No need to check if parsing was successful + * here. Already checked in the interest_pcslookup + * node + */ + nameptr = (u8 *) (&name); + hicn_new_interest (rt, b0, &next0, tnow, nameptr, namelen, + outface, nh_idx, + vnet_buffer (b0)->ip.adj_index[VLIB_TX], + strategy, isv6, &stats); + } + /* Maybe trace */ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_strategy_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->pkt_type = HICN_PKT_TYPE_CONTENT; + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + t->next_index = next0; + } + /* + * Verify speculative enqueue, maybe switch current + * next frame + */ + /* + * Fix in case of a wrong speculation. Needed for + * cloning the data in the right frame + */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, hicn_strategy_node->index, + HICNFWD_ERROR_PROCESSED, stats.pkts_processed); + vlib_node_increment_counter (vm, hicn_strategy_node->index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/strategy.h b/hicn-plugin/src/strategy.h new file mode 100755 index 000000000..6b06a6ce9 --- /dev/null +++ b/hicn-plugin/src/strategy.h @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_STRATEGY__ +#define __HICN_STRATEGY__ + +#include "hicn.h" +#include "hashtb.h" +#include "mgmt.h" +#include "faces/face.h" + +/** + * @File + * + * A strategy is defined as a vpp node and a set of function that will be called + * during the packet processing. Having one vpp node per strategy allows to + * easily process multiple interests in the same node (x2 or x4) and call the + * same function for choosing the next hop. + * Here we provide: + * - a template for the callbacks to implement in order to create a new strategy + * (hicn_fwd_strategy_t) + * - the base structure for a strategy node + * (list of next vpp nodes, errors, tracing and the main function processing an + * interest and calling hicn_select_next_hop) + */ + +typedef struct hicn_strategy_vft_s +{ + void (*hicn_receive_data) (index_t dpo_idx, int nh_idx); + void (*hicn_on_interest_timeout) (index_t dpo_idx); + void (*hicn_add_interest) (index_t dpo_idx, hicn_hash_entry_t * pit_entry); + u32 (*hicn_select_next_hop) (index_t dpo_idx, int *nh_idx, + dpo_id_t ** outface); + u32 (*get_strategy_node_index) (void); + /**< Return the vlib node index implementing the strategy */ +} hicn_strategy_vft_t; + +hicn_face_vft_t *hicn_strategy_get_face_vft (u16 index); + +/* Strategy node API */ +/* Basic interest processing function. To be called in all the strategy nodes */ +uword +hicn_forward_interest_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame, + hicn_strategy_vft_t * strategy, + vlib_node_registration_t * hicn_strategy_node); + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_strategy_trace_t; + +typedef enum +{ + HICN_STRATEGY_NEXT_INTEREST_HITPIT, + HICN_STRATEGY_NEXT_ERROR_DROP, + HICN_STRATEGY_N_NEXT, +} hicn_strategy_next_t; + +#endif /* //__HICN_STRATEGY__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/strategy_dpo_ctx.h b/hicn-plugin/src/strategy_dpo_ctx.h new file mode 100755 index 000000000..5d2dbc47c --- /dev/null +++ b/hicn-plugin/src/strategy_dpo_ctx.h @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_STRATEGY_DPO_CTX_H__ +#define __HICN_STRATEGY_DPO_CTX_H__ + +#include <vnet/dpo/dpo.h> +#include <vnet/fib/fib_table.h> + +#include "hicn.h" +#include "params.h" +#include "faces/face.h" + +#define HICN_FIB_TABLE 0 + +#define DATA_LEN 8 + +#define NEXT_HOP_INVALID DPO_INVALID + +/* + * An hicn dpo is a list of next hops (face + weight). + */ +typedef struct __attribute__ ((packed)) hicn_dpo_ctx_s +{ + CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); + /* 8B*5 = 40B */ + dpo_id_t next_hops[HICN_PARAM_FIB_ENTRY_NHOPS_MAX]; + /* 40B + 4B = 44B */ + u32 locks; + /* 44B + 1B = 45B */ + u8 entry_count; + /* 45B + 1B = 46B */ + /* Number of TFIB entries (stored at the end of the next_hops array */ + u8 tfib_entry_count; + + /* 46B + 2B = 48B */ + u16 padding; /* To align to 8B */ + +#ifdef HICN_MAPME_NOTIFICATIONS + /* (8B) last acked update for IU/IN heuristic on producer */ + f64 last_iu_ack; +#endif + /* (4B) last sequence number */ + seq_t seq; + +} hicn_dpo_ctx_t; + +STATIC_ASSERT (sizeof (hicn_dpo_ctx_t) <= CLIB_CACHE_LINE_BYTES, + "sizeof hicn_dpo_ctx_t is greater than 64B"); + +#endif /* // __HICN_STRATEGY_DPO_CTX_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/strategy_dpo_manager.c b/hicn-plugin/src/strategy_dpo_manager.c new file mode 100755 index 000000000..c1723eccc --- /dev/null +++ b/hicn-plugin/src/strategy_dpo_manager.c @@ -0,0 +1,159 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/dpo/dpo.h> + +#include "strategy_dpo_manager.h" +#include "strategies/dpo_mw.h" +#include "strategy.h" +#include "faces/face.h" + +static dpo_type_t *strategies_id; +static const hicn_dpo_vft_t **hicn_dpo_vfts; + +static const hicn_strategy_vft_t **hicn_strategy_vfts; + +int hicn_strategies = 0; + +hicn_dpo_vft_t default_dpo; + +dpo_type_t +hicn_dpo_register_new_type (const char *const *const *hicn_nodes, + const hicn_dpo_vft_t * hicn_dpo_vft, + const hicn_strategy_vft_t * hicn_strategy_vft, + const dpo_vft_t * dpo_ctx_vft) +{ + dpo_type_t dpo_type = dpo_register_new_type (dpo_ctx_vft, hicn_nodes); + vec_validate (hicn_dpo_vfts, dpo_type); + hicn_dpo_vfts[dpo_type] = hicn_dpo_vft; + + vec_validate (hicn_strategy_vfts, dpo_type); + hicn_strategy_vfts[dpo_type] = hicn_strategy_vft; + + vec_validate (strategies_id, hicn_strategies); + strategies_id[hicn_strategies] = dpo_type; + hicn_strategies++; + + return dpo_type; +} + +u32 +dpo_is_hicn (const dpo_id_t * dpo) +{ + for (int i = 0; i < hicn_strategies; i++) + { + if (hicn_dpo_vfts[strategies_id[i]]->hicn_dpo_is_type (dpo)) + return 1; + } + return 0; +} + +dpo_type_t +hicn_dpo_get_vft_id (const dpo_id_t * dpo) +{ + return dpo->dpoi_type; +} + +const hicn_dpo_vft_t * +hicn_dpo_get_vft (dpo_type_t vfts_id) +{ + return hicn_dpo_vfts[vfts_id]; +} + +const hicn_dpo_vft_t * +hicn_dpo_get_vft_from_id (u8 strategy_id) +{ + return hicn_dpo_vfts[strategies_id[strategy_id]]; +} + +const hicn_strategy_vft_t * +hicn_dpo_get_strategy_vft (dpo_type_t vfts_id) +{ + return hicn_strategy_vfts[vfts_id]; +} + +const hicn_strategy_vft_t * +hicn_dpo_get_strategy_vft_from_id (u8 vfts_id) +{ + return hicn_strategy_vfts[strategies_id[vfts_id]]; +} + +void +hicn_dpos_init (void) +{ + hicn_dpo_strategy_mw_module_init (); + + default_dpo.hicn_dpo_get_ctx = &hicn_strategy_mw_ctx_get; + default_dpo.hicn_dpo_is_type = &hicn_dpo_is_type_strategy_mw; + default_dpo.hicn_dpo_get_type = &hicn_dpo_strategy_mw_get_type; + default_dpo.hicn_dpo_module_init = &hicn_dpo_strategy_mw_module_init; + default_dpo.hicn_dpo_create = &hicn_strategy_mw_ctx_create; + default_dpo.hicn_dpo_add_update_nh = &hicn_strategy_mw_ctx_add_nh; + default_dpo.hicn_dpo_del_nh = &hicn_strategy_mw_ctx_del_nh; + default_dpo.hicn_dpo_lock_dpo_ctx = &hicn_strategy_mw_ctx_lock; + default_dpo.hicn_dpo_unlock_dpo_ctx = hicn_strategy_mw_ctx_unlock; + default_dpo.format_hicn_dpo = &format_hicn_strategy_mw_ctx; +} + +u8 * +format_hicn_strategy_list (u8 * s, int n, ...) +{ + va_list ap; + va_start (ap, n); + u32 indent = va_arg (ap, u32); + va_end (ap); + + s = format (s, "Strategies:\n", indent); + indent += 4; + int i; + vec_foreach_index (i, strategies_id) + { + s = format (s, "(%d) ", i, indent); + s = hicn_dpo_vfts[strategies_id[i]]->format_hicn_dpo (s, &ap); + } + + return (s); +} + +u8 +hicn_dpo_strategy_id_is_valid (int strategy_id) +{ + return vec_len (strategies_id) > strategy_id ? + HICN_ERROR_NONE : HICN_ERROR_DPO_MGR_ID_NOT_VALID; +} + +int +hicn_strategy_get_all_available (void) +{ + return hicn_strategies; +} + +/** + * @brief Registers a dpo by calling its module init function. + * + * This is typically called from the ctor for dpo's registered at compilation + * time. + */ +void +hicn_dpo_register (const hicn_dpo_vft_t * hicn_dpo) +{ + hicn_dpo->hicn_dpo_module_init (); +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/strategy_dpo_manager.h b/hicn-plugin/src/strategy_dpo_manager.h new file mode 100755 index 000000000..686c2f8c8 --- /dev/null +++ b/hicn-plugin/src/strategy_dpo_manager.h @@ -0,0 +1,186 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_STRATEGY_DPO_MANAGER_H__ +#define __HICN_STRATEGY_DPO_MANAGER_H__ + +#include "strategy_dpo_ctx.h" +#include "strategy.h" + +/** + * @brief Definition of the virtual function table for a hICN DPO. + * + * An hICN dpo is a combination of a dpo context (hicn_dpo_ctx or struct that + * extends a hicn_dpo_ctx) and a strategy node. The following virtual function table + * template that glues together the fuction to interact with the context and the + * creating the dpo + */ +typedef struct hicn_dpo_vft_s +{ + hicn_dpo_ctx_t *(*hicn_dpo_get_ctx) (index_t dpo_idx); /**< Retrieve the dpo ctx*/ + int (*hicn_dpo_is_type) (const dpo_id_t * dpo); + /**< Check if the type of the + hICN DPO is the expected */ + dpo_type_t (*hicn_dpo_get_type) (void); + /**< Return the type of the hICN dpo */ + void (*hicn_dpo_module_init) (void); /**< Initialize the hICN dpo */ + int (*hicn_dpo_create) (dpo_proto_t proto, const dpo_id_t * nh, int nh_len, index_t * dpo_idx); /**< Create the context of the hICN dpo */ + int (*hicn_dpo_add_update_nh) (const dpo_id_t * nh, index_t dpo_idx); /**< Add a next hop to the hICN dpo context */ + int (*hicn_dpo_del_nh) (hicn_face_id_t face_id, index_t dpo_idx, + fib_prefix_t * fib_pfx); + /**< Add a next hop to the hICN dpo context */ + void (*hicn_dpo_lock_dpo_ctx) (dpo_id_t * dpo); + void (*hicn_dpo_unlock_dpo_ctx) (dpo_id_t * dpo); + u8 *(*format_hicn_dpo) (u8 * s, va_list * ap); + /**< Format an hICN dpo*/ +} hicn_dpo_vft_t; + +/* + * Default dpo to be used to create fib entry when a strategy is not + * specified + */ +extern hicn_dpo_vft_t default_dpo; + +/** + * @brief Register a new hICN dpo to the manager. + * + * An hICN DPO is a combination of: + * - a hICN DPO ctx (context) that holds the structure containing the + * information to choose the next hop, + * - a strategy containing: (i) the vpp node that processes Interest packets + * subjected to such strategy, (ii) the definition of the vft that defines + * the hICN strategy functions + * Registering a hICN DPO allows the plugin to be aware of the new dpo an be + * able to apply it to the FIB entries. + * + * @param hicn_nodes A list of vpp to which pass an interest that matches with + * the FIB entry to which the hICN DPO is applied. This list must contain the + * name of the strategy node (or nodes in case of differentiation between IPv4 + * and IPv6). + * @param hicn_dpo_vft The structure holding the virtual function table to + * interact with the hICN dpo and its context. + * @param hicn_strategy_vft The structure holding the virtual function table + * containing the hICN strategy functions. + * @return the dpo type registered in the VPP Data plane graph. + */ +dpo_type_t +hicn_dpo_register_new_type (const char *const *const *hicn_nodes, + const hicn_dpo_vft_t * hicn_dpo_vft, + const hicn_strategy_vft_t * + hicn_strategy_vft, const dpo_vft_t * dpo_ctx_vft); + +/** + * @brief Check if the type of the dpo is among the list of hicn dpo types + * + * Iterate through the list of dpo types registered in the hicn dpo manager. + * + * @param dpo The id of the dpo to which check the type + * @return 1 if there is a match, 0 otherwise. + */ +u32 dpo_is_hicn (const dpo_id_t * dpo); + +/** + * @brief Return the dpo_vtf and strategy_vtf identifier + * + * Iterate through the list of dpo types registered in the hicn dpo manager and + * retrieve the corresponding dpo_vtf/strategy_vtf identifier. + * + * @param dpo The id of the dpo to which check the type + * @return the dpo_vft/strategy_vft id or HICN_ERROR_DPO_NOT_FOUND in case the dpo is not an hICN dpo. + */ +u8 hicn_dpo_get_vft_id (const dpo_id_t * dpo); + +/** + * @brief Get the vft to manage the dpo context. + * + * @param The id of the hicn_dpo_vft to retrieve. + * @return The vft struct that contains the list of callbacks that allows to + * manage the dpo context. + */ +const hicn_dpo_vft_t *hicn_dpo_get_vft (dpo_type_t vfts_id); + +/** + * @brief Get the vft to manage the dpo context from the strategy id. + * + * @param The strategy id of the hicn_dpo_vft to retrieve. + * @return The vft struct that contains the list of callbacks that allows to + * manage the dpo context. + */ +const hicn_dpo_vft_t *hicn_dpo_get_vft_from_id (u8 strategy_id); + +/** + * @brief Get the vft with the hICN strategy functions. + * + * @param The id of the hicn_strategy_vft to retrieve. + * @return The vft struct that contains the list hICN strategy functions. + */ +const hicn_strategy_vft_t *hicn_dpo_get_strategy_vft (dpo_type_t vfts_id); + +/** + * @brief Get the vft with the hICN strategy functions from the strategy id. + * + * @param The id of the hicn_strategy_vft to retrieve. + * @return The vft struct that contains the list hICN strategy functions. + */ +const hicn_strategy_vft_t *hicn_dpo_get_strategy_vft_from_id (u8 vfts_id); + +/** + * @brief Initialize all the types hicn dpo registered + * + * Call the init functions of all the hicn dpo implemented. + * This init is called when the plugin bootstrap. + */ +void hicn_dpos_init (void); + +/** + * @brief Print the list of the registered hICN DPO + * + * @param s String to which to append the list of hICN DPO (strategies) + * @param n number of parameters to pass + * + * @result The string with the list of hICN DPO (strategies) + */ +u8 *format_hicn_strategy_list (u8 * s, int n, ...); + +/** + * @brief Check if a given id points to a strategy and the corresponding dpo ctx + * + * @param The id of the strategy to check. + * + * @result HICN_ERROR_NONE is the id is valid, otherwise EINVAL + */ +u8 hicn_dpo_strategy_id_is_valid (int strategy_id); + +/** + * @brief Return the number of available strategies. This number can be used to + * as an upperbond for valid vfts_id. + * + * @result Return the number of available strategies. + */ +int hicn_strategy_get_all_available (void); + +/** + * @brief Registers a module at compilation time to be initialized as part of + * the ctor. + */ +void hicn_dpo_register (const hicn_dpo_vft_t * hicn_dpo); + +#endif /* // __HICN_STRATEGY_DPO_MANAGER_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/utils.h b/hicn-plugin/src/utils.h new file mode 100755 index 000000000..ecad47e9b --- /dev/null +++ b/hicn-plugin/src/utils.h @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_UTILS_H__ +#define __HICN_UTILS_H__ + +#include "hicn.h" + +always_inline void +hicn_print_name6 (hicn_name_t * name) +{ + u8 *s0; + s0 = format (0, "Source addr %U, seq_number %u", format_ip6_address, + (ip6_address_t *) name->ip6.prefix, + clib_net_to_host_u32 (name->ip6.suffix)); + + printf ("%s\n", s0); +} + +always_inline void +hicn_print6 (hicn_header_t * hicn0) +{ + vlib_main_t *vm = vlib_get_main (); + u8 *s0; + s0 = format (0, "Source addr %U:%u, dest addr %U:%u", format_ip6_address, + &(hicn0->v6.ip.saddr), + clib_net_to_host_u32 (hicn0->v6.tcp.seq), format_ip6_address, + &(hicn0->v6.ip.daddr), + clib_net_to_host_u32 (hicn0->v6.tcp.seq)); + + vlib_cli_output (vm, "%s\n", s0); +} + +always_inline void +hicn_print4 (hicn_header_t * hicn0) +{ + u8 *s0; + s0 = format (0, "Source addr %U:%u, dest addr %U:%u", format_ip4_address, + &(hicn0->v4.ip.saddr), + clib_net_to_host_u32 (hicn0->v4.tcp.seq), format_ip4_address, + &(hicn0->v4.ip.daddr), + clib_net_to_host_u32 (hicn0->v4.tcp.seq)); + + printf ("%s\n", s0); +} + +#endif /* // __HICN_UTILS_H__ */ + + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/vface_db.h b/hicn-plugin/src/vface_db.h new file mode 100755 index 000000000..b98a2f46d --- /dev/null +++ b/hicn-plugin/src/vface_db.h @@ -0,0 +1,155 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HICN_FACE_DB_H__ +#define __HICN_FACE_DB_H__ + +#include <vnet/dpo/dpo.h> +#include "faces/face.h" + +/* Must be power of two*/ +#define HICN_FACE_DB_INLINE_FACES 4 + +#define HICN_PIT_N_HOP_BITMAP_SIZE HICN_PARAM_PIT_ENTRY_PHOPS_MAX + +#define HICN_PIT_N_HOP_BUCKET (HICN_PARAM_PIT_ENTRY_PHOPS_MAX - HICN_FACE_DB_INLINE_FACES) + +STATIC_ASSERT ((HICN_PIT_N_HOP_BUCKET & (HICN_PIT_N_HOP_BUCKET - 1)) == 0, + "HICN_PARAM_PIT_ENTRY_PHOP_MAX must be a power of 2 + 4"); + +/* Takes 2 cache lines */ +typedef struct __attribute__ ((packed)) hicn_face_bucket_s +{ + /* Array of indexes of virtual faces */ + dpo_id_t faces[HICN_PIT_N_HOP_BUCKET]; + + CLIB_CACHE_LINE_ALIGN_MARK (cache_line1); + + /* Used to check if interests are retransmission */ + /* How much are we gaining (performance)/wasting (memory) wrt the linear */ + /* search on the array of faces? */ + u8 bitmap[HICN_PIT_N_HOP_BITMAP_SIZE]; + +} hicn_face_bucket_t; + +extern hicn_face_bucket_t *hicn_face_bucket_pool; + +/* + * Virtual faces will be stored in a pool and when a virtual face is created and + * its index will be saved in the pit entry. In case of interest aggregation we + * have to look on all the virtual faces to understand if there is a duplicated + * interest + */ +typedef struct __attribute__ ((packed)) hicn_face_db_s +{ + /* 19B + 1B = 20B */ + /* Equal to one or zero */ + u8 is_overflow; + + /* Number of faces in the last bucket */ + /* Or next availabe entry for storing a dpo_id_t */ + /* 20B + 4B = 24B */ + u32 n_faces; + + /* 24B + 32B (8*4) = 56B */ + /* Array of indexes of virtual faces */ + dpo_id_t inline_faces[HICN_FACE_DB_INLINE_FACES]; + + /* 56B + 4B = 60B */ + u32 next_bucket; + + /* 60B + 4B = 64B */ + u32 align; //align back to 64 + +} hicn_face_db_t; + +//STATIC_ASSERT(HICN_PIT_N_HOP_BITMAP_SIZE <= (HICN_PARAM_PIT_ENTRY_PHOPS_MAX/8)); + +always_inline dpo_id_t * +hicn_face_db_get_dpo_face (u32 index, hicn_face_db_t * face_db) +{ + ASSERT (index < face_db->n_faces); + + return index < HICN_FACE_DB_INLINE_FACES ? &(face_db->inline_faces[index]) : + &(pool_elt_at_index (hicn_face_bucket_pool, face_db->next_bucket)->faces + [(index - HICN_FACE_DB_INLINE_FACES) & (HICN_PIT_N_HOP_BUCKET - 1)]); +} + +always_inline void +hicn_face_db_init (int max_element) +{ + pool_init_fixed (hicn_face_bucket_pool, max_element); +} + +always_inline hicn_face_bucket_t * +hicn_face_db_get_bucket (u32 bucket_index) +{ + return pool_elt_at_index (hicn_face_bucket_pool, bucket_index); +} + +always_inline void +hicn_face_db_add_face_dpo (dpo_id_t * dpo, hicn_face_db_t * face_db) +{ + ASSERT (dpo->dpoi_index != ~0); + + hicn_face_bucket_t *faces_bkt = + pool_elt_at_index (hicn_face_bucket_pool, face_db->next_bucket); + dpo_id_t *face = + face_db->n_faces < + HICN_FACE_DB_INLINE_FACES ? &(face_db->inline_faces[face_db->n_faces]) : + &(faces_bkt->faces + [(face_db->n_faces - + HICN_FACE_DB_INLINE_FACES) & (HICN_PIT_N_HOP_BUCKET - 1)]); + + clib_memcpy (face, dpo, sizeof (dpo_id_t)); + + /* This access the dpoi to increase the lock */ + dpo_lock (dpo); + + u32 bitmap_index = dpo->dpoi_index % HICN_PIT_N_HOP_BITMAP_SIZE; + faces_bkt->bitmap[bitmap_index] |= 0x01; + face_db->n_faces++; +} + +always_inline u8 +hicn_face_search (dpo_id_t * dpo, hicn_face_db_t * face_db) +{ + hicn_face_bucket_t *faces_bkt = + pool_elt_at_index (hicn_face_bucket_pool, face_db->next_bucket); + u32 bitmap_index = dpo->dpoi_index % HICN_PIT_N_HOP_BITMAP_SIZE; + + return faces_bkt->bitmap[bitmap_index] & 0x01; +} + +always_inline void +hicn_faces_flush (hicn_face_db_t * face_db) +{ + hicn_face_bucket_t *faces_bkt = + pool_elt_at_index (hicn_face_bucket_pool, face_db->next_bucket); + clib_memset_u64 (&(faces_bkt->bitmap), 0, HICN_PIT_N_HOP_BITMAP_SIZE / 8); + face_db->n_faces = 0; + pool_put_index (hicn_face_bucket_pool, face_db->next_bucket); +} + + +#endif // __HICN_FACE_DB_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |