| /* |
| *------------------------------------------------------------------ |
| * 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: |
| */ |