diff options
Diffstat (limited to 'src/vnet/l2/l2_api.c')
| -rw-r--r-- | src/vnet/l2/l2_api.c | 679 |
1 files changed, 679 insertions, 0 deletions
diff --git a/src/vnet/l2/l2_api.c b/src/vnet/l2/l2_api.c new file mode 100644 index 00000000..20d6ab32 --- /dev/null +++ b/src/vnet/l2/l2_api.c @@ -0,0 +1,679 @@ +/* + *------------------------------------------------------------------ + * l2_api.c - layer 2 forwarding api + * + * Copyright (c) 2016 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 <vlibmemory/api.h> + +#include <vnet/interface.h> +#include <vnet/api_errno.h> +#include <vnet/l2/l2_input.h> +#include <vnet/l2/l2_fib.h> +#include <vnet/l2/l2_vtr.h> +#include <vnet/l2/l2_learn.h> + +#include <vnet/vnet_msg_enum.h> + +#define vl_typedefs /* define message structures */ +#include <vnet/vnet_all_api_h.h> +#undef vl_typedefs + +#define vl_endianfun /* define message structures */ +#include <vnet/vnet_all_api_h.h> +#undef vl_endianfun + +#define vl_api_bridge_domain_details_t_endian vl_noop_handler +#define vl_api_bridge_domain_details_t_print vl_noop_handler + +/* instantiate all the print functions we know about */ +#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) +#define vl_printfun +#include <vnet/vnet_all_api_h.h> +#undef vl_printfun + +#include <vlibapi/api_helper_macros.h> + +#define foreach_vpe_api_msg \ +_(L2_XCONNECT_DUMP, l2_xconnect_dump) \ +_(L2_FIB_CLEAR_TABLE, l2_fib_clear_table) \ +_(L2_FIB_TABLE_DUMP, l2_fib_table_dump) \ +_(L2FIB_FLUSH_ALL, l2fib_flush_all) \ +_(L2FIB_FLUSH_INT, l2fib_flush_int) \ +_(L2FIB_FLUSH_BD, l2fib_flush_bd) \ +_(L2FIB_ADD_DEL, l2fib_add_del) \ +_(WANT_L2_MACS_EVENTS, want_l2_macs_events) \ +_(L2_FLAGS, l2_flags) \ +_(BRIDGE_DOMAIN_ADD_DEL, bridge_domain_add_del) \ +_(BRIDGE_DOMAIN_DUMP, bridge_domain_dump) \ +_(BRIDGE_FLAGS, bridge_flags) \ +_(L2_INTERFACE_VLAN_TAG_REWRITE, l2_interface_vlan_tag_rewrite) \ +_(L2_INTERFACE_PBB_TAG_REWRITE, l2_interface_pbb_tag_rewrite) \ +_(BRIDGE_DOMAIN_SET_MAC_AGE, bridge_domain_set_mac_age) + +static void +send_l2_xconnect_details (unix_shared_memory_queue_t * q, u32 context, + u32 rx_sw_if_index, u32 tx_sw_if_index) +{ + vl_api_l2_xconnect_details_t *mp; + + mp = vl_msg_api_alloc (sizeof (*mp)); + memset (mp, 0, sizeof (*mp)); + mp->_vl_msg_id = ntohs (VL_API_L2_XCONNECT_DETAILS); + mp->context = context; + mp->rx_sw_if_index = htonl (rx_sw_if_index); + mp->tx_sw_if_index = htonl (tx_sw_if_index); + + vl_msg_api_send_shmem (q, (u8 *) & mp); +} + +static void +vl_api_l2_xconnect_dump_t_handler (vl_api_l2_xconnect_dump_t * mp) +{ + unix_shared_memory_queue_t *q; + vnet_main_t *vnm = vnet_get_main (); + vnet_interface_main_t *im = &vnm->interface_main; + l2input_main_t *l2im = &l2input_main; + vnet_sw_interface_t *swif; + l2_input_config_t *config; + + q = vl_api_client_index_to_input_queue (mp->client_index); + if (q == 0) + return; + + /* *INDENT-OFF* */ + pool_foreach (swif, im->sw_interfaces, + ({ + config = vec_elt_at_index (l2im->configs, swif->sw_if_index); + if (config->xconnect) + send_l2_xconnect_details (q, mp->context, swif->sw_if_index, + config->output_sw_if_index); + })); + /* *INDENT-ON* */ +} + +static void +vl_api_l2_fib_clear_table_t_handler (vl_api_l2_fib_clear_table_t * mp) +{ + int rv = 0; + vl_api_l2_fib_clear_table_reply_t *rmp; + + /* Clear all MACs including static MACs */ + l2fib_clear_table (); + + REPLY_MACRO (VL_API_L2_FIB_CLEAR_TABLE_REPLY); +} + +static void +send_l2fib_table_entry (vpe_api_main_t * am, + unix_shared_memory_queue_t * q, + l2fib_entry_key_t * l2fe_key, + l2fib_entry_result_t * l2fe_res, u32 context) +{ + vl_api_l2_fib_table_details_t *mp; + + mp = vl_msg_api_alloc (sizeof (*mp)); + memset (mp, 0, sizeof (*mp)); + mp->_vl_msg_id = ntohs (VL_API_L2_FIB_TABLE_DETAILS); + + mp->bd_id = + ntohl (l2input_main.bd_configs[l2fe_key->fields.bd_index].bd_id); + + mp->mac = l2fib_make_key (l2fe_key->fields.mac, 0); + mp->sw_if_index = ntohl (l2fe_res->fields.sw_if_index); + mp->static_mac = l2fe_res->fields.static_mac; + mp->filter_mac = l2fe_res->fields.filter; + mp->bvi_mac = l2fe_res->fields.bvi; + mp->context = context; + + vl_msg_api_send_shmem (q, (u8 *) & mp); +} + +static void +vl_api_l2_fib_table_dump_t_handler (vl_api_l2_fib_table_dump_t * mp) +{ + vpe_api_main_t *am = &vpe_api_main; + bd_main_t *bdm = &bd_main; + l2fib_entry_key_t *l2fe_key = NULL; + l2fib_entry_result_t *l2fe_res = NULL; + u32 ni, bd_id = ntohl (mp->bd_id); + u32 bd_index; + unix_shared_memory_queue_t *q; + uword *p; + + q = vl_api_client_index_to_input_queue (mp->client_index); + if (q == 0) + return; + + /* see l2fib_table_dump: ~0 means "any" */ + if (bd_id == ~0) + bd_index = ~0; + else + { + p = hash_get (bdm->bd_index_by_bd_id, bd_id); + if (p == 0) + return; + + bd_index = p[0]; + } + + l2fib_table_dump (bd_index, &l2fe_key, &l2fe_res); + + vec_foreach_index (ni, l2fe_key) + { + send_l2fib_table_entry (am, q, vec_elt_at_index (l2fe_key, ni), + vec_elt_at_index (l2fe_res, ni), mp->context); + } + vec_free (l2fe_key); + vec_free (l2fe_res); +} + +static void +vl_api_l2fib_add_del_t_handler (vl_api_l2fib_add_del_t * mp) +{ + bd_main_t *bdm = &bd_main; + l2input_main_t *l2im = &l2input_main; + vl_api_l2fib_add_del_reply_t *rmp; + int rv = 0; + u32 bd_id = ntohl (mp->bd_id); + uword *p = hash_get (bdm->bd_index_by_bd_id, bd_id); + + if (!p) + { + rv = VNET_API_ERROR_NO_SUCH_ENTRY; + goto bad_sw_if_index; + } + u32 bd_index = p[0]; + + u64 mac = mp->mac; + if (mp->is_add) + { + if (mp->filter_mac) + l2fib_add_filter_entry (mac, bd_index); + else + { + u32 sw_if_index = ntohl (mp->sw_if_index); + VALIDATE_SW_IF_INDEX (mp); + if (vec_len (l2im->configs) <= sw_if_index) + { + rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; + goto bad_sw_if_index; + } + else + { + l2_input_config_t *config; + config = vec_elt_at_index (l2im->configs, sw_if_index); + if (config->bridge == 0) + { + rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; + goto bad_sw_if_index; + } + } + u8 static_mac = mp->static_mac ? 1 : 0; + u8 bvi_mac = mp->bvi_mac ? 1 : 0; + l2fib_add_fwd_entry (mac, bd_index, sw_if_index, static_mac, + bvi_mac); + } + } + else + { + l2fib_del_entry (mac, bd_index); + } + + BAD_SW_IF_INDEX_LABEL; + + REPLY_MACRO (VL_API_L2FIB_ADD_DEL_REPLY); +} + +static void +vl_api_want_l2_macs_events_t_handler (vl_api_want_l2_macs_events_t * mp) +{ + int rv = 0; + vl_api_want_l2_macs_events_reply_t *rmp; + l2learn_main_t *lm = &l2learn_main; + l2fib_main_t *fm = &l2fib_main; + u32 pid = ntohl (mp->pid); + u32 learn_limit = ntohl (mp->learn_limit); + + if (mp->enable_disable) + { + if (lm->client_pid == 0) + { + lm->client_pid = pid; + lm->client_index = mp->client_index; + + if (mp->max_macs_in_event) + fm->max_macs_in_event = mp->max_macs_in_event * 10; + else + fm->max_macs_in_event = L2FIB_EVENT_MAX_MACS_DEFAULT; + + if (mp->scan_delay) + fm->event_scan_delay = (f64) (mp->scan_delay) * 10e-3; + else + fm->event_scan_delay = L2FIB_EVENT_SCAN_DELAY_DEFAULT; + + /* change learn limit and flush all learned MACs */ + if (learn_limit && (learn_limit < L2LEARN_DEFAULT_LIMIT)) + lm->global_learn_limit = learn_limit; + else + lm->global_learn_limit = L2FIB_EVENT_LEARN_LIMIT_DEFAULT; + + l2fib_flush_all_mac (vlib_get_main ()); + } + else if (lm->client_pid != pid) + { + rv = VNET_API_ERROR_L2_MACS_EVENT_CLINET_PRESENT; + goto exit; + } + } + else if (lm->client_pid) + { + lm->client_pid = 0; + lm->client_index = 0; + if (learn_limit && (learn_limit < L2LEARN_DEFAULT_LIMIT)) + lm->global_learn_limit = learn_limit; + else + lm->global_learn_limit = L2LEARN_DEFAULT_LIMIT; + } + +exit: + REPLY_MACRO (VL_API_WANT_L2_MACS_EVENTS_REPLY); +} + +static void +vl_api_l2fib_flush_int_t_handler (vl_api_l2fib_flush_int_t * mp) +{ + int rv = 0; + vlib_main_t *vm = vlib_get_main (); + vl_api_l2fib_flush_int_reply_t *rmp; + + VALIDATE_SW_IF_INDEX (mp); + + u32 sw_if_index = ntohl (mp->sw_if_index); + l2fib_flush_int_mac (vm, sw_if_index); + + BAD_SW_IF_INDEX_LABEL; + REPLY_MACRO (VL_API_L2FIB_FLUSH_INT_REPLY); +} + +static void +vl_api_l2fib_flush_all_t_handler (vl_api_l2fib_flush_all_t * mp) +{ + int rv = 0; + vl_api_l2fib_flush_all_reply_t *rmp; + + l2fib_flush_all_mac (vlib_get_main ()); + REPLY_MACRO (VL_API_L2FIB_FLUSH_ALL_REPLY); +} + +static void +vl_api_l2fib_flush_bd_t_handler (vl_api_l2fib_flush_bd_t * mp) +{ + int rv = 0; + vlib_main_t *vm = vlib_get_main (); + bd_main_t *bdm = &bd_main; + vl_api_l2fib_flush_bd_reply_t *rmp; + + u32 bd_id = ntohl (mp->bd_id); + uword *p = hash_get (bdm->bd_index_by_bd_id, bd_id); + if (p == 0) + { + rv = VNET_API_ERROR_NO_SUCH_ENTRY; + goto out; + } + l2fib_flush_bd_mac (vm, *p); +out: + REPLY_MACRO (VL_API_L2FIB_FLUSH_BD_REPLY); +} + +static void +vl_api_l2_flags_t_handler (vl_api_l2_flags_t * mp) +{ + vl_api_l2_flags_reply_t *rmp; + int rv = 0; + u32 rbm = 0; + + VALIDATE_SW_IF_INDEX (mp); + + u32 sw_if_index = ntohl (mp->sw_if_index); + u32 flags = ntohl (mp->feature_bitmap); + u32 bitmap = 0; + + if (flags & L2_LEARN) + bitmap |= L2INPUT_FEAT_LEARN; + + if (flags & L2_FWD) + bitmap |= L2INPUT_FEAT_FWD; + + if (flags & L2_FLOOD) + bitmap |= L2INPUT_FEAT_FLOOD; + + if (flags & L2_UU_FLOOD) + bitmap |= L2INPUT_FEAT_UU_FLOOD; + + if (flags & L2_ARP_TERM) + bitmap |= L2INPUT_FEAT_ARP_TERM; + + rbm = l2input_intf_bitmap_enable (sw_if_index, bitmap, mp->is_set); + + BAD_SW_IF_INDEX_LABEL; + + /* *INDENT-OFF* */ + REPLY_MACRO2(VL_API_L2_FLAGS_REPLY, + ({ + rmp->resulting_feature_bitmap = ntohl(rbm); + })); + /* *INDENT-ON* */ +} + +static void +vl_api_bridge_domain_set_mac_age_t_handler (vl_api_bridge_domain_set_mac_age_t + * mp) +{ + vlib_main_t *vm = vlib_get_main (); + bd_main_t *bdm = &bd_main; + vl_api_bridge_domain_set_mac_age_reply_t *rmp; + int rv = 0; + u32 bd_id = ntohl (mp->bd_id); + uword *p; + + if (bd_id == 0) + { + rv = VNET_API_ERROR_BD_NOT_MODIFIABLE; + goto out; + } + + p = hash_get (bdm->bd_index_by_bd_id, bd_id); + if (p == 0) + { + rv = VNET_API_ERROR_NO_SUCH_ENTRY; + goto out; + } + bd_set_mac_age (vm, *p, mp->mac_age); +out: + REPLY_MACRO (VL_API_BRIDGE_DOMAIN_SET_MAC_AGE_REPLY); +} + +static void +vl_api_bridge_domain_add_del_t_handler (vl_api_bridge_domain_add_del_t * mp) +{ + l2_bridge_domain_add_del_args_t a = { + .is_add = mp->is_add, + .flood = mp->flood, + .uu_flood = mp->uu_flood, + .forward = mp->forward, + .learn = mp->learn, + .arp_term = mp->arp_term, + .mac_age = mp->mac_age, + .bd_id = ntohl (mp->bd_id), + .bd_tag = mp->bd_tag + }; + + int rv = bd_add_del (&a); + + vl_api_bridge_domain_add_del_reply_t *rmp; + REPLY_MACRO (VL_API_BRIDGE_DOMAIN_ADD_DEL_REPLY); +} + +static void +send_bridge_domain_details (l2input_main_t * l2im, + unix_shared_memory_queue_t * q, + l2_bridge_domain_t * bd_config, + u32 n_sw_ifs, u32 context) +{ + vl_api_bridge_domain_details_t *mp; + l2_flood_member_t *m; + vl_api_bridge_domain_sw_if_t *sw_ifs; + l2_input_config_t *input_cfg; + + mp = vl_msg_api_alloc (sizeof (*mp) + + (n_sw_ifs * sizeof (vl_api_bridge_domain_sw_if_t))); + memset (mp, 0, sizeof (*mp)); + mp->_vl_msg_id = ntohs (VL_API_BRIDGE_DOMAIN_DETAILS); + mp->bd_id = ntohl (bd_config->bd_id); + mp->flood = bd_feature_flood (bd_config); + mp->uu_flood = bd_feature_uu_flood (bd_config); + mp->forward = bd_feature_forward (bd_config); + mp->learn = bd_feature_learn (bd_config); + mp->arp_term = bd_feature_arp_term (bd_config); + mp->bvi_sw_if_index = ntohl (bd_config->bvi_sw_if_index); + mp->mac_age = bd_config->mac_age; + if (bd_config->bd_tag) + { + strncpy ((char *) mp->bd_tag, (char *) bd_config->bd_tag, + ARRAY_LEN (mp->bd_tag) - 1); + mp->bd_tag[ARRAY_LEN (mp->bd_tag) - 1] = 0; + } + + mp->context = context; + + sw_ifs = (vl_api_bridge_domain_sw_if_t *) mp->sw_if_details; + vec_foreach (m, bd_config->members) + { + sw_ifs->sw_if_index = ntohl (m->sw_if_index); + input_cfg = vec_elt_at_index (l2im->configs, m->sw_if_index); + sw_ifs->shg = input_cfg->shg; + sw_ifs++; + mp->n_sw_ifs++; + } + mp->n_sw_ifs = htonl (mp->n_sw_ifs); + + vl_msg_api_send_shmem (q, (u8 *) & mp); +} + +static void +vl_api_bridge_domain_dump_t_handler (vl_api_bridge_domain_dump_t * mp) +{ + bd_main_t *bdm = &bd_main; + l2input_main_t *l2im = &l2input_main; + + unix_shared_memory_queue_t *q = + vl_api_client_index_to_input_queue (mp->client_index); + if (q == 0) + return; + + u32 bd_id = ntohl (mp->bd_id); + if (bd_id == 0) + return; + + u32 bd_index, end; + if (bd_id == ~0) + bd_index = 0, end = vec_len (l2im->bd_configs); + else + { + bd_index = bd_find_index (bdm, bd_id); + if (bd_index == ~0) + return; + + end = bd_index + 1; + } + + for (; bd_index < end; bd_index++) + { + l2_bridge_domain_t *bd_config = + l2input_bd_config_from_index (l2im, bd_index); + /* skip dummy bd_id 0 */ + if (bd_config && (bd_config->bd_id > 0)) + send_bridge_domain_details (l2im, q, bd_config, + vec_len (bd_config->members), + mp->context); + } +} + +static void +vl_api_bridge_flags_t_handler (vl_api_bridge_flags_t * mp) +{ + vlib_main_t *vm = vlib_get_main (); + bd_main_t *bdm = &bd_main; + vl_api_bridge_flags_reply_t *rmp; + int rv = 0; + + u32 flags = ntohl (mp->feature_bitmap); + u32 bd_id = ntohl (mp->bd_id); + if (bd_id == 0) + { + rv = VNET_API_ERROR_BD_NOT_MODIFIABLE; + goto out; + } + + u32 bd_index = bd_find_index (bdm, bd_id); + if (bd_index == ~0) + { + rv = VNET_API_ERROR_NO_SUCH_ENTRY; + goto out; + } + + u32 bitmap = bd_set_flags (vm, bd_index, flags, mp->is_set); + +out: + /* *INDENT-OFF* */ + REPLY_MACRO2(VL_API_BRIDGE_FLAGS_REPLY, + ({ + rmp->resulting_feature_bitmap = ntohl(bitmap); + })); + /* *INDENT-ON* */ +} + +static void + vl_api_l2_interface_vlan_tag_rewrite_t_handler + (vl_api_l2_interface_vlan_tag_rewrite_t * mp) +{ + int rv = 0; + vl_api_l2_interface_vlan_tag_rewrite_reply_t *rmp; + vnet_main_t *vnm = vnet_get_main (); + vlib_main_t *vm = vlib_get_main (); + u32 vtr_op; + + VALIDATE_SW_IF_INDEX (mp); + + vtr_op = ntohl (mp->vtr_op); + + /* The L2 code is unsuspicious */ + switch (vtr_op) + { + case L2_VTR_DISABLED: + case L2_VTR_PUSH_1: + case L2_VTR_PUSH_2: + case L2_VTR_POP_1: + case L2_VTR_POP_2: + case L2_VTR_TRANSLATE_1_1: + case L2_VTR_TRANSLATE_1_2: + case L2_VTR_TRANSLATE_2_1: + case L2_VTR_TRANSLATE_2_2: + break; + + default: + rv = VNET_API_ERROR_INVALID_VALUE; + goto bad_sw_if_index; + } + + rv = l2vtr_configure (vm, vnm, ntohl (mp->sw_if_index), vtr_op, + ntohl (mp->push_dot1q), ntohl (mp->tag1), + ntohl (mp->tag2)); + + BAD_SW_IF_INDEX_LABEL; + + REPLY_MACRO (VL_API_L2_INTERFACE_VLAN_TAG_REWRITE_REPLY); +} + +static void + vl_api_l2_interface_pbb_tag_rewrite_t_handler + (vl_api_l2_interface_pbb_tag_rewrite_t * mp) +{ + vl_api_l2_interface_pbb_tag_rewrite_reply_t *rmp; + vnet_main_t *vnm = vnet_get_main (); + vlib_main_t *vm = vlib_get_main (); + u32 vtr_op; + int rv = 0; + + VALIDATE_SW_IF_INDEX (mp); + + vtr_op = ntohl (mp->vtr_op); + + switch (vtr_op) + { + case L2_VTR_DISABLED: + case L2_VTR_PUSH_2: + case L2_VTR_POP_2: + case L2_VTR_TRANSLATE_2_1: + break; + + default: + rv = VNET_API_ERROR_INVALID_VALUE; + goto bad_sw_if_index; + } + + rv = l2pbb_configure (vm, vnm, ntohl (mp->sw_if_index), vtr_op, + mp->b_dmac, mp->b_smac, ntohs (mp->b_vlanid), + ntohl (mp->i_sid), ntohs (mp->outer_tag)); + + BAD_SW_IF_INDEX_LABEL; + + REPLY_MACRO (VL_API_L2_INTERFACE_PBB_TAG_REWRITE_REPLY); +} + +/* + * l2_api_hookup + * Add vpe's API message handlers to the table. + * vlib has alread mapped shared memory and + * added the client registration handlers. + * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process() + */ +#define vl_msg_name_crc_list +#include <vnet/vnet_all_api_h.h> +#undef vl_msg_name_crc_list + +static void +setup_message_id_table (api_main_t * am) +{ +#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id); + foreach_vl_msg_name_crc_l2; +#undef _ +} + +static clib_error_t * +l2_api_hookup (vlib_main_t * vm) +{ + api_main_t *am = &api_main; + +#define _(N,n) \ + vl_msg_api_set_handlers(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_vpe_api_msg; +#undef _ + + /* + * Set up the (msg_name, crc, message-id) table + */ + setup_message_id_table (am); + + return 0; +} + +VLIB_API_INIT_FUNCTION (l2_api_hookup); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |