diff options
Diffstat (limited to 'ctrl/sysrepo-plugins/hicn-plugin/plugin/ietf/ietf_interface.c')
| -rw-r--r-- | ctrl/sysrepo-plugins/hicn-plugin/plugin/ietf/ietf_interface.c | 607 |
1 files changed, 0 insertions, 607 deletions
diff --git a/ctrl/sysrepo-plugins/hicn-plugin/plugin/ietf/ietf_interface.c b/ctrl/sysrepo-plugins/hicn-plugin/plugin/ietf/ietf_interface.c deleted file mode 100644 index 3e0c90cf9..000000000 --- a/ctrl/sysrepo-plugins/hicn-plugin/plugin/ietf/ietf_interface.c +++ /dev/null @@ -1,607 +0,0 @@ -/* - * Copyright (c) 2016-2020 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 <stdio.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -#include <sysrepo.h> -#include <sysrepo/values.h> -#include <sysrepo/xpath.h> -#include <vnet/interface.h> -#include <vnet/vnet.h> -#include <vnet/ip/ip.h> -#include <vapi/interface.api.vapi.h> - -#include "ietf_interface.h" -#include "../hicn_vpp_comm.h" - - -DEFINE_VAPI_MSG_IDS_INTERFACE_API_JSON; - -typedef struct hicn_interface_ -{ - u32 sw_if_index; - char interface_name[VPP_INTFC_NAME_LEN]; - u8 l2_address[VPP_MAC_ADDRESS_LEN]; - u64 link_speed; - u32 flags; - u16 link_mtu; - u8 admin_up_down; - u8 link_up_down; -} hicnIntfc; - -typedef struct _ietf_sw_interface_dump_ctx -{ - u8 last_called; - int num_ifs; - int capacity; - hicnIntfc * intfcArray; -} ietf_sw_interface_dump_ctx; - -static i32 ietf_setInterfaceFlags(u32 sw_if_index, u8 admin_up_down); -static i32 ietf_interface_name2index(const char *name, u32* if_index); -static i32 ietf_interface_add_del_addr(u32 sw_if_index, u8 is_add, u8 is_ipv6, - u8 del_all, u8 address_length, - u8 address[VPP_IP6_ADDRESS_LEN]); -static int ietf_initSwInterfaceDumpCTX(ietf_sw_interface_dump_ctx * dctx); -static int ietf_freeSwInterfaceDumpCTX(ietf_sw_interface_dump_ctx * dctx); - -/** - * @brief Helper function for converting netmask into prefix length. - */ -static uint8_t -netmask_to_prefix(const char *netmask) -{ - in_addr_t n = 0; - uint8_t i = 0; - - inet_pton(AF_INET, netmask, &n); - - while (n > 0) { - n = n >> 1; - i++; - } - - return i; -} - -/** - * @brief Helper function for converting IPv4/IPv6 address string into binary representation. - */ -static int -ip_addr_str_to_binary(const char *ip_address_str, uint8_t *ip_address_bin, bool is_ipv6) -{ - struct in6_addr addr6 = { 0, }; - struct in_addr addr4 = { 0, }; - int ret = 0; - - if (is_ipv6) { - ret = inet_pton(AF_INET6, ip_address_str, &(addr6)); - if (1 == ret) - { - memcpy(ip_address_bin, &addr6, sizeof(addr6)); - } - } else { - ret = inet_pton(AF_INET, ip_address_str, &(addr4)); - if (1 == ret) - { - memcpy(ip_address_bin, &addr4, sizeof(addr4)); - } - } - - return ret; -} - -/** - * @brief Enable or disable given interface. - */ -static int -interface_enable_disable(const char *if_name, bool enable) -{ - uint32_t if_index = ~0; - int rc = 0; - - - /* get interface index */ - rc = ietf_interface_name2index(if_name, &if_index); - if (0 != rc) { - SRP_LOG_ERRMSG("Invalid interface name"); - return SR_ERR_INVAL_ARG; - } - - /* enable/disable interface */ - rc = ietf_setInterfaceFlags(if_index, (uint8_t)enable); - if (0 != rc) { - SRP_LOG_ERRMSG("Error by processing of the sw_interface_set_flags request"); - return SR_ERR_OPERATION_FAILED; - } else { - return SR_ERR_OK; - } -} - - -vapi_error_e call_sw_interface_add_del_address(struct vapi_ctx_s *ctx, - void *callback_ctx, - vapi_error_e rv, - bool is_last, - vapi_payload_sw_interface_add_del_address_reply *reply){ -if(!reply->retval){ - SRP_LOG_DBGMSG("Successfully done"); - return VAPI_OK; - }else - return VAPI_EUSER; -} - -vapi_error_e call_sw_interface_set_flags(struct vapi_ctx_s *ctx, - void *callback_ctx, - vapi_error_e rv, - bool is_last, - vapi_payload_sw_interface_set_flags_reply *reply){ -if(!reply->retval){ - SRP_LOG_DBGMSG("Successfully done"); - return VAPI_OK; - }else - return VAPI_EUSER; -} - - - -/** - * @brief Callback to be called by any config change of "/ietf-interfaces:interfaces/interface/enabled" leaf. - */ -static int -ietf_interface_enable_disable_cb(sr_session_ctx_t *session, const char *module_name, const char *xpath, sr_event_t event, - uint32_t request_id, void *private_data) -{ - char *if_name = NULL; - sr_change_iter_t *iter = NULL; - sr_change_oper_t op = SR_OP_CREATED; - sr_val_t *old_val = NULL; - sr_val_t *new_val = NULL; - sr_xpath_ctx_t xpath_ctx = { 0, }; - int rc = SR_ERR_OK, op_rc = SR_ERR_OK; - - /* no-op for apply, we only care about SR_EV_ENABLED, SR_EV_VERIFY, SR_EV_ABORT */ - if (SR_EV_DONE == event) { - return SR_ERR_OK; - } - - /* get changes iterator */ - rc = sr_get_changes_iter(session, xpath, &iter); - if (SR_ERR_OK != rc) { - SRP_LOG_ERRMSG("Unable to retrieve change iterator"); - return rc; - } - - /* iterate over all changes */ - while ((SR_ERR_OK == op_rc || event == SR_EV_ABORT) && - (SR_ERR_OK == (rc = sr_get_change_next(session, iter, &op, &old_val, &new_val)))) { - - SRP_LOG_DBGMSG("A change detected"); - if_name = sr_xpath_key_value(new_val ? new_val->xpath : old_val->xpath, "interface", "name", &xpath_ctx); - switch (op) { - case SR_OP_CREATED: - case SR_OP_MODIFIED: - op_rc = interface_enable_disable(if_name, new_val->data.bool_val); - break; - case SR_OP_DELETED: - op_rc = interface_enable_disable(if_name, false /* !enable */); - break; - default: - break; - } - sr_xpath_recover(&xpath_ctx); - if (SR_ERR_INVAL_ARG == op_rc) { - sr_set_error(session, "Invalid interface name.", new_val ? new_val->xpath : old_val->xpath); - } - sr_free_val(old_val); - sr_free_val(new_val); - } - sr_free_change_iter(iter); - - return op_rc; -} - -/** - * @brief Add or remove IPv4/IPv6 address to/from an interface. - */ -static int -interface_ipv46_config_add_remove(const char *if_name, uint8_t *addr, uint8_t prefix, bool is_ipv6, bool add) -{ - uint32_t if_index = ~0; - int rc = 0; - - /* get interface index */ - rc = ietf_interface_name2index(if_name, &if_index); - if (0 != rc) { - SRP_LOG_ERRMSG("Invalid interface name"); - return SR_ERR_INVAL_ARG; - } - - /* add del addr */ - rc = ietf_interface_add_del_addr(if_index, (uint8_t)add, (uint8_t)is_ipv6, 0, prefix, addr); - if (0 != rc) { - SRP_LOG_ERRMSG("Error by processing of the sw_interface_set_flags request"); - return SR_ERR_OPERATION_FAILED; - } else { - return SR_ERR_OK; - } -} -int ietf_initSwInterfaceDumpCTX(ietf_sw_interface_dump_ctx * dctx) -{ - if(dctx == NULL) - return -1; - - dctx->intfcArray = NULL; - dctx->last_called = false; - dctx->capacity = 0; - dctx->num_ifs = 0; - return 0; -} -int ietf_freeSwInterfaceDumpCTX(ietf_sw_interface_dump_ctx * dctx) -{ - if(dctx == NULL) - return -1; - - if(dctx->intfcArray != NULL) - { - free(dctx->intfcArray); - } - - return ietf_initSwInterfaceDumpCTX(dctx); -} -vapi_error_e -ietf_sw_interface_dump_cb (struct vapi_ctx_s *ctx, void *callback_ctx, - vapi_error_e rv, bool is_last, - vapi_payload_sw_interface_details * reply) -{ - ietf_sw_interface_dump_ctx *dctx = callback_ctx; - if (is_last) - { - dctx->last_called = true; - } - else - { - if(dctx->capacity == 0 && dctx->intfcArray == NULL) - { - dctx->capacity = 10; - dctx->intfcArray = (hicnIntfc*)malloc( sizeof(hicnIntfc)*dctx->capacity ); - } - if(dctx->num_ifs >= dctx->capacity-1) - { - - dctx->capacity += 10; - dctx->intfcArray = (hicnIntfc*)realloc(dctx->intfcArray, sizeof(hicnIntfc)*dctx->capacity ); - } - - hicnIntfc * thisIntfc = &dctx->intfcArray[dctx->num_ifs]; - - thisIntfc->sw_if_index = reply->sw_if_index; - memcpy(thisIntfc->interface_name, reply->interface_name, VPP_INTFC_NAME_LEN); - memcpy(thisIntfc->l2_address, reply->l2_address, VPP_MAC_ADDRESS_LEN ); - //thisIntfc->link_speed = reply->link_speed; -#define ONE_MEGABIT (uint64_t)1000000 - switch (reply->link_speed << VNET_HW_INTERFACE_FLAG_SPEED_SHIFT) - { - default: - thisIntfc->link_speed = 0; - break; - } - - thisIntfc->link_mtu = reply->link_mtu; - thisIntfc->flags = reply->flags; - - dctx->num_ifs += 1; - } - return VAPI_OK; -} - -static i32 ietf_interface_name2index(const char *name, u32* if_index) -{ - ARG_CHECK2(-1, name, if_index); - - i32 ret = -1; - ietf_sw_interface_dump_ctx dctx = {false, 0, 0, 0}; - vapi_msg_sw_interface_dump *dump; - vapi_error_e rv; - dctx.last_called = false; - - dump = vapi_alloc_sw_interface_dump(g_vapi_ctx_instance); - dump->payload.name_filter_valid = true; - memcpy(&dump->payload.name_filter, name, sizeof(dump->payload.name_filter)); - - while (VAPI_EAGAIN == (rv = vapi_sw_interface_dump(g_vapi_ctx_instance, dump, ietf_sw_interface_dump_cb, &dctx))) - ; - - int i = 0; - for (; i < dctx.num_ifs; ++i) - { - if (strcmp(dctx.intfcArray[i].interface_name, name) == 0) - { - *if_index = dctx.intfcArray[i].sw_if_index; - ret = 0; - break; - } - } - ietf_freeSwInterfaceDumpCTX(&dctx); - - return ret; -} - -i32 ietf_interface_add_del_addr( u32 sw_if_index, u8 is_add, u8 is_ipv6, u8 del_all, - u8 address_length, u8 address[VPP_IP6_ADDRESS_LEN] ) -{ - i32 ret = -1; - vapi_msg_sw_interface_add_del_address *msg = vapi_alloc_sw_interface_add_del_address(g_vapi_ctx_instance); - msg->payload.sw_if_index = sw_if_index; - msg->payload.is_add = is_add; - msg->payload.prefix.address.af = is_ipv6 ? ADDRESS_IP6 : ADDRESS_IP4; - msg->payload.del_all = del_all; - msg->payload.prefix.len = address_length; - memcpy(msg->payload.prefix.address.un.ip6, address, VPP_IP6_ADDRESS_LEN); - - if(vapi_sw_interface_add_del_address(g_vapi_ctx_instance,msg,call_sw_interface_add_del_address,NULL)!=VAPI_OK){ - SRP_LOG_DBGMSG("Operation failed"); - return SR_ERR_OPERATION_FAILED; - } - - return ret; -} - -i32 ietf_setInterfaceFlags(u32 sw_if_index, u8 admin_up_down) -{ - i32 ret = -1; - vapi_msg_sw_interface_set_flags *msg = vapi_alloc_sw_interface_set_flags(g_vapi_ctx_instance); - msg->payload.sw_if_index = sw_if_index; - msg->payload.flags = admin_up_down? IF_STATUS_API_FLAG_ADMIN_UP : 0; - - if(vapi_sw_interface_set_flags(g_vapi_ctx_instance,msg,call_sw_interface_set_flags,NULL)!=VAPI_OK){ - SRP_LOG_DBGMSG("Operation failed"); - return SR_ERR_OPERATION_FAILED; - } - - - return ret; -} - - -/** - * @brief Modify existing IPv4/IPv6 config on an interface. - */ -static int -interface_ipv46_config_modify(sr_session_ctx_t *session, const char *if_name, - sr_val_t *old_val, sr_val_t *new_val, bool is_ipv6) -{ - sr_xpath_ctx_t xpath_ctx = { 0, }; - char *addr_str = NULL; - uint8_t addr[16] = { 0, }; - uint8_t prefix = 0; - int rc = SR_ERR_OK; - - SRP_LOG_DBGMSG("Updating IP config on interface"); - - /* get old config to be deleted */ - if (SR_UINT8_T == old_val->type) { - prefix = old_val->data.uint8_val; - } else if (SR_STRING_T == old_val->type) { - prefix = netmask_to_prefix(old_val->data.string_val); - } else { - return SR_ERR_INVAL_ARG; - } - addr_str = sr_xpath_key_value((char*)old_val->xpath, "address", "ip", &xpath_ctx); - ip_addr_str_to_binary(addr_str, addr, is_ipv6); - sr_xpath_recover(&xpath_ctx); - - /* delete old IP config */ - rc = interface_ipv46_config_add_remove(if_name, addr, prefix, is_ipv6, false /* remove */); - if (SR_ERR_OK != rc) { - SRP_LOG_ERRMSG("Unable to remove old IP address config"); - return rc; - } - - /* update the config with the new value */ - if (sr_xpath_node_name_eq(new_val->xpath, "prefix-length")) { - prefix = new_val->data.uint8_val; - } else if (sr_xpath_node_name_eq(new_val->xpath, "netmask")) { - prefix = netmask_to_prefix(new_val->data.string_val); - } - - /* set new IP config */ - rc = interface_ipv46_config_add_remove(if_name, addr, prefix, is_ipv6, true /* add */); - if (SR_ERR_OK != rc) { - SRP_LOG_ERRMSG("Unable to remove old IP address config"); - return rc; - } - - return rc; -} - -/** - * @brief Callback to be called by any config change in subtrees "/ietf-interfaces:interfaces/interface/ietf-ip:ipv4/address" - * or "/ietf-interfaces:interfaces/interface/ietf-ip:ipv6/address". - */ -static int -ietf_interface_ipv46_address_change_cb(sr_session_ctx_t *session, const char *module_name, const char *xpath, sr_event_t event, - uint32_t request_id, void *private_data) -{ - sr_change_iter_t *iter = NULL; - sr_change_oper_t op = SR_OP_CREATED; - sr_val_t *old_val = NULL; - sr_val_t *new_val = NULL; - sr_xpath_ctx_t xpath_ctx = { 0 }; - bool is_ipv6 = false, has_addr = false, has_prefix = false; - uint8_t addr[16] = { 0, }; - uint8_t prefix = 0; - char *node_name = NULL, *if_name = NULL; - int rc = SR_ERR_OK, op_rc = SR_ERR_OK; - - /* no-op for apply, we only care about SR_EV_ENABLED, SR_EV_VERIFY, SR_EV_ABORT */ - if (SR_EV_DONE == event) { - return SR_ERR_OK; - } - - /* check whether we are handling ipv4 or ipv6 config */ - node_name = sr_xpath_node_idx((char*)xpath, 2, &xpath_ctx); - if (NULL != node_name && 0 == strcmp(node_name, "ipv6")) { - is_ipv6 = true; - } - sr_xpath_recover(&xpath_ctx); - - /* get changes iterator */ - rc = sr_get_changes_iter(session, xpath, &iter); - if (SR_ERR_OK != rc) { - // SRP_LOG_ERR("Unable to retrieve change iterator: %s", sr_strerror(rc)); - return rc; - } - - /* iterate over all changes */ - while ((SR_ERR_OK == op_rc || event == SR_EV_ABORT) && - (SR_ERR_OK == (rc = sr_get_change_next(session, iter, &op, &old_val, &new_val)))) { - - if_name = strdup(sr_xpath_key_value(new_val ? new_val->xpath : old_val->xpath, "interface", "name", &xpath_ctx)); - sr_xpath_recover(&xpath_ctx); - - switch (op) { - case SR_OP_CREATED: - if (SR_LIST_T == new_val->type) { - /* create on list item - reset state vars */ - has_addr = has_prefix = false; - } else { - if (sr_xpath_node_name_eq(new_val->xpath, "ip")) { - ip_addr_str_to_binary(new_val->data.string_val, addr, is_ipv6); - has_addr = true; - } else if (sr_xpath_node_name_eq(new_val->xpath, "prefix-length")) { - prefix = new_val->data.uint8_val; - has_prefix = true; - } else if (sr_xpath_node_name_eq(new_val->xpath, "netmask")) { - prefix = netmask_to_prefix(new_val->data.string_val); - has_prefix = true; - } - if (has_addr && has_prefix) { - op_rc = interface_ipv46_config_add_remove(if_name, addr, prefix, is_ipv6, true /* add */); - } - } - break; - case SR_OP_MODIFIED: - op_rc = interface_ipv46_config_modify(session, if_name, old_val, new_val, is_ipv6); - break; - case SR_OP_DELETED: - if (SR_LIST_T == old_val->type) { - /* delete on list item - reset state vars */ - has_addr = has_prefix = false; - } else { - if (sr_xpath_node_name_eq(old_val->xpath, "ip")) { - ip_addr_str_to_binary(old_val->data.string_val, addr, is_ipv6); - has_addr = true; - } else if (sr_xpath_node_name_eq(old_val->xpath, "prefix-length")) { - prefix = old_val->data.uint8_val; - has_prefix = true; - } else if (sr_xpath_node_name_eq(old_val->xpath, "netmask")) { - prefix = netmask_to_prefix(old_val->data.string_val); - has_prefix = true; - } - if (has_addr && has_prefix) { - op_rc = interface_ipv46_config_add_remove(if_name, addr, prefix, is_ipv6, false /* !add */); - } - } - break; - default: - break; - } - if (SR_ERR_INVAL_ARG == op_rc) { - sr_set_error(session, "Invalid interface name.", new_val ? new_val->xpath : old_val->xpath); - } - free(if_name); - sr_free_val(old_val); - sr_free_val(new_val); - } - sr_free_change_iter(iter); - - return op_rc; -} - -/** - * @brief Callback to be called by any config change under "/ietf-interfaces:interfaces-state/interface" path. - * Does not provide any functionality, needed just to cover not supported config leaves. - */ -static int -ietf_interface_change_cb(sr_session_ctx_t *session, const char *module_name, const char *xpath, sr_event_t event, - uint32_t request_id, void *private_data) -{ - return SR_ERR_OK; -} - - -int ietf_subscribe_events(sr_session_ctx_t *session, - sr_subscription_ctx_t **subscription){ - - int rc = SR_ERR_OK; - SRP_LOG_DBGMSG("Subscriging ietf."); - - // - rc = sr_module_change_subscribe(session, "ietf-interfaces","/ietf-interfaces:interfaces/interface", ietf_interface_change_cb, - NULL, - 0, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_ENABLED, subscription); - - if (rc != SR_ERR_OK) { - SRP_LOG_DBGMSG("Problem in subscription /ietf-interfaces:interfaces/interface\n"); - goto error; - } - - rc = sr_module_change_subscribe(session, "ietf-interfaces","/ietf-interfaces:interfaces/interface/enabled", ietf_interface_enable_disable_cb, - NULL, - 100, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_ENABLED, subscription); - if (rc != SR_ERR_OK) { - SRP_LOG_DBGMSG("Problem in subscription /ietf-interfaces:interfaces/interface/enabled\n"); - goto error; - } - - //rc = sr_module_change_subscribe(session, "ietf-interfaces","/ietf-interfaces:interfaces/interface/ietf-ip:ipv4/address", ietf_interface_ipv46_address_change_cb, - rc = sr_module_change_subscribe(session, "ietf-interfaces","/ietf-interfaces:interfaces", ietf_interface_ipv46_address_change_cb, - NULL, - 99, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_ENABLED, subscription); - - if (rc != SR_ERR_OK) { - SRP_LOG_DBGMSG("Problem in subscription /ietf-interfaces:interfaces/interface/ietf-ip:ipv4/address\n"); - goto error; - } - - //rc = sr_module_change_subscribe(session, "ietf-interfaces","/ietf-interfaces:interfaces/interface/ietf-ip:ipv6/address", ietf_interface_ipv46_address_change_cb, - // NULL, - // 98, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_ENABLED, subscription); - - if (rc != SR_ERR_OK) { - SRP_LOG_DBGMSG("Problem in subscription /ietf-interfaces:interfaces/interface/ietf-ip:ipv6/address\n"); - goto error; - } - - /* rc = sr_dp_get_items_subscribe(session, "/ietf-interfaces:interfaces-state", ietf_interface_state_cb, - NULL, SR_SUBSCR_CTX_REUSE, - subscription); - if (rc != SR_ERR_OK) { - SRP_LOG_DBG_MSG("Problem in subscription /ietf-interfaces:interfaces-state\n"); - goto error; - }*/ - - - SRP_LOG_INFMSG("ietf initialized successfully."); - return SR_ERR_OK; - - error: - SRP_LOG_ERRMSG("Error by initialization of the ietf."); - return rc; -} |