/* *------------------------------------------------------------------ * bfd_api.c - bfd 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/bfd/bfd_main.h> #include <vnet/bfd/bfd_api.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 /* 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 \ _ (BFD_UDP_ADD, bfd_udp_add) \ _ (BFD_UDP_DEL, bfd_udp_del) \ _ (BFD_UDP_SESSION_DUMP, bfd_udp_session_dump) \ _ (BFD_UDP_SESSION_SET_FLAGS, bfd_udp_session_set_flags) \ _ (WANT_BFD_EVENTS, want_bfd_events) \ _ (BFD_AUTH_SET_KEY, bfd_auth_set_key) \ _ (BFD_AUTH_DEL_KEY, bfd_auth_del_key) \ _ (BFD_AUTH_KEYS_DUMP, bfd_auth_keys_dump) \ _ (BFD_UDP_AUTH_ACTIVATE, bfd_udp_auth_activate) \ _ (BFD_UDP_AUTH_DEACTIVATE, bfd_udp_auth_deactivate) pub_sub_handler (bfd_events, BFD_EVENTS); #define BFD_UDP_API_PARAM_COMMON_CODE \ ip46_address_t local_addr; \ memset (&local_addr, 0, sizeof (local_addr)); \ ip46_address_t peer_addr; \ memset (&peer_addr, 0, sizeof (peer_addr)); \ if (mp->is_ipv6) \ { \ clib_memcpy (&local_addr.ip6, mp->local_addr, sizeof (local_addr.ip6)); \ clib_memcpy (&peer_addr.ip6, mp->peer_addr, sizeof (peer_addr.ip6)); \ } \ else \ { \ clib_memcpy (&local_addr.ip4, mp->local_addr, sizeof (local_addr.ip4)); \ clib_memcpy (&peer_addr.ip4, mp->peer_addr, sizeof (peer_addr.ip4)); \ } #define BFD_UDP_API_PARAM_FROM_MP(mp) \ clib_net_to_host_u32 (mp->sw_if_index), &local_addr, &peer_addr static void vl_api_bfd_udp_add_t_handler (vl_api_bfd_udp_add_t * mp) { vl_api_bfd_udp_add_reply_t *rmp; int rv; VALIDATE_SW_IF_INDEX (mp); BFD_UDP_API_PARAM_COMMON_CODE; rv = bfd_udp_add_session (BFD_UDP_API_PARAM_FROM_MP (mp), clib_net_to_host_u32 (mp->desired_min_tx), clib_net_to_host_u32 (mp->required_min_rx), mp->detect_mult, mp->is_authenticated, clib_net_to_host_u32 (mp->conf_key_id), mp->bfd_key_id); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_BFD_UDP_ADD_REPLY); } static void vl_api_bfd_udp_del_t_handler (vl_api_bfd_udp_del_t * mp) { vl_api_bfd_udp_del_reply_t *rmp; int rv; VALIDATE_SW_IF_INDEX (mp); BFD_UDP_API_PARAM_COMMON_CODE; rv = bfd_udp_del_session (BFD_UDP_API_PARAM_FROM_MP (mp)); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_BFD_UDP_DEL_REPLY); } void send_bfd_udp_session_details (unix_shared_memory_queue_t * q, u32 context, bfd_session_t * bs) { if (bs->transport != BFD_TRANSPORT_UDP4 && bs->transport != BFD_TRANSPORT_UDP6) { return; } vl_api_bfd_udp_session_details_t *mp = vl_msg_api_alloc (sizeof (*mp)); memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_BFD_UDP_SESSION_DETAILS); mp->context = context; mp->state = bs->local_state; bfd_udp_session_t *bus = &bs->udp; bfd_udp_key_t *key = &bus->key; mp->sw_if_index = clib_host_to_net_u32 (key->sw_if_index); mp->is_ipv6 = !(ip46_address_is_ip4 (&key->local_addr)); if (mp->is_ipv6) { clib_memcpy (mp->local_addr, &key->local_addr, sizeof (key->local_addr)); clib_memcpy (mp->peer_addr, &key->peer_addr, sizeof (key->peer_addr)); } else { clib_memcpy (mp->local_addr, key->local_addr.ip4.data, sizeof (key->local_addr.ip4.data)); clib_memcpy (mp->peer_addr, key->peer_addr.ip4.data, sizeof (key->peer_addr.ip4.data)); } vl_msg_api_send_shmem (q, (u8 *) & mp); } void bfd_event (bfd_main_t * bm, bfd_session_t * bs) { vpe_api_main_t *vam = &vpe_api_main; vpe_client_registration_t *reg; unix_shared_memory_queue_t *q; /* *INDENT-OFF* */ pool_foreach (reg, vam->bfd_events_registrations, ({ q = vl_api_client_index_to_input_queue (reg->client_index); if (q) { switch (bs->transport) { case BFD_TRANSPORT_UDP4: /* fallthrough */ case BFD_TRANSPORT_UDP6: send_bfd_udp_session_details (q, 0, bs); } } })); /* *INDENT-ON* */ } static void vl_api_bfd_udp_session_dump_t_handler (vl_api_bfd_udp_session_dump_t * mp) { unix_shared_memory_queue_t *q; q = vl_api_client_index_to_input_queue (mp->client_index); if (q == 0) return; bfd_session_t *bs = NULL; /* *INDENT-OFF* */ pool_foreach (bs, bfd_main.sessions, ({ if (bs->transport == BFD_TRANSPORT_UDP4 || bs->transport == BFD_TRANSPORT_UDP6) send_bfd_udp_session_details (q, mp->context, bs); })); /* *INDENT-ON* */ } static void vl_api_bfd_udp_session_set_flags_t_handler (vl_api_bfd_udp_session_set_flags_t * mp) { vl_api_bfd_udp_session_set_flags_reply_t *rmp; int rv; BFD_UDP_API_PARAM_COMMON_CODE; rv = bfd_udp_session_set_flags (BFD_UDP_API_PARAM_FROM_MP (mp), mp->admin_up_down); REPLY_MACRO (VL_API_BFD_UDP_SESSION_SET_FLAGS_REPLY); } static void vl_api_bfd_auth_set_key_t_handler (vl_api_bfd_auth_set_key_t * mp) { vl_api_bfd_auth_set_key_reply_t *rmp; int rv = bfd_auth_set_key (clib_net_to_host_u32 (mp->conf_key_id), mp->auth_type, mp->key_len, mp->key); REPLY_MACRO (VL_API_BFD_AUTH_SET_KEY_REPLY); } static void vl_api_bfd_auth_del_key_t_handler (vl_api_bfd_auth_del_key_t * mp) { vl_api_bfd_auth_del_key_reply_t *rmp; int rv = bfd_auth_del_key (clib_net_to_host_u32 (mp->conf_key_id)); REPLY_MACRO (VL_API_BFD_AUTH_DEL_KEY_REPLY); } static void vl_api_bfd_auth_keys_dump_t_handler (vl_api_bfd_auth_keys_dump_t * mp) { unix_shared_memory_queue_t *q; q = vl_api_client_index_to_input_queue (mp->client_index); if (q == 0) return; bfd_auth_key_t *key = NULL; vl_api_bfd_auth_keys_details_t *rmp = NULL; /* *INDENT-OFF* */ pool_foreach (key, bfd_main.auth_keys, ({ rmp = vl_msg_api_alloc (sizeof (*rmp)); memset (rmp, 0, sizeof (*rmp)); rmp->_vl_msg_id = ntohs (VL_API_BFD_AUTH_KEYS_DETAILS); rmp->context = mp->context; rmp->conf_key_id = clib_host_to_net_u32 (key->conf_key_id); rmp->auth_type = key->auth_type; rmp->use_count = clib_host_to_net_u32 (key->use_count); vl_msg_api_send_shmem (q, (u8 *)&rmp); })); /* *INDENT-ON* */ } static void vl_api_bfd_udp_auth_activate_t_handler (vl_api_bfd_udp_auth_activate_t * mp) { vl_api_bfd_udp_auth_activate_reply_t *rmp; int rv; VALIDATE_SW_IF_INDEX (mp); BFD_UDP_API_PARAM_COMMON_CODE; rv = bfd_udp_auth_activate (BFD_UDP_API_PARAM_FROM_MP (mp), clib_net_to_host_u32 (mp->conf_key_id), mp->bfd_key_id, mp->is_delayed); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_BFD_UDP_AUTH_ACTIVATE_REPLY); } static void vl_api_bfd_udp_auth_deactivate_t_handler (vl_api_bfd_udp_auth_deactivate_t * mp) { vl_api_bfd_udp_auth_deactivate_reply_t *rmp; int rv; VALIDATE_SW_IF_INDEX (mp); BFD_UDP_API_PARAM_COMMON_CODE; rv = bfd_udp_auth_deactivate (BFD_UDP_API_PARAM_FROM_MP (mp), mp->is_delayed); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_BFD_UDP_AUTH_DEACTIVATE_REPLY); } /* * bfd_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_bfd; #undef _ } static clib_error_t * bfd_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 (bfd_api_hookup); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */