/* *------------------------------------------------------------------ * 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. *------------------------------------------------------------------ */ /** * @file * @brief BFD binary API implementation */ #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/ip/ip_types_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_MOD, bfd_udp_mod) \ _ (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) \ _ (BFD_UDP_SET_ECHO_SOURCE, bfd_udp_set_echo_source) \ _ (BFD_UDP_DEL_ECHO_SOURCE, bfd_udp_del_echo_source) \ _ (BFD_UDP_GET_ECHO_SOURCE, bfd_udp_get_echo_source) pub_sub_handler (bfd_events, BFD_EVENTS); #define BFD_UDP_API_PARAM_COMMON_CODE \ ip46_address_t local_addr; \ ip46_address_t peer_addr; \ ip_address_decode(&mp->local_addr, &local_addr); \ ip_address_decode(&mp->peer_addr, &peer_addr); #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_mod_t_handler (vl_api_bfd_udp_mod_t * mp) { vl_api_bfd_udp_mod_reply_t *rmp; int rv; VALIDATE_SW_IF_INDEX (mp); BFD_UDP_API_PARAM_COMMON_CODE; rv = bfd_udp_mod_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); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_BFD_UDP_MOD_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 (vl_api_registration_t * reg, 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)); clib_memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_BFD_UDP_SESSION_DETAILS); mp->context = context; mp->state = clib_host_to_net_u32 (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); if ((!bs->auth.is_delayed && bs->auth.curr_key) || (bs->auth.is_delayed && bs->auth.next_key)) { mp->is_authenticated = true; } if (bs->auth.is_delayed && bs->auth.next_key) { mp->bfd_key_id = bs->auth.next_bfd_key_id; mp->conf_key_id = clib_host_to_net_u32 (bs->auth.next_key->conf_key_id); } else if (!bs->auth.is_delayed && bs->auth.curr_key) { mp->bfd_key_id = bs->auth.curr_bfd_key_id; mp->conf_key_id = clib_host_to_net_u32 (bs->auth.curr_key->conf_key_id); } ip_address_encode (&key->local_addr, IP46_TYPE_ANY, &mp->local_addr); ip_address_encode (&key->peer_addr, IP46_TYPE_ANY, &mp->peer_addr); mp->required_min_rx = clib_host_to_net_u32 (bs->config_required_min_rx_usec); mp->desired_min_tx = clib_host_to_net_u32 (bs->config_desired_min_tx_usec); mp->detect_mult = bs->local_detect_mult; vl_api_send_msg (reg, (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; vl_api_registration_t *vl_reg; /* *INDENT-OFF* */ pool_foreach (reg, vam->bfd_events_registrations, ({ vl_reg = vl_api_client_index_to_registration (reg->client_index); if (vl_reg) { switch (bs->transport) { case BFD_TRANSPORT_UDP4: /* fallthrough */ case BFD_TRANSPORT_UDP6: send_bfd_udp_session_details (vl_reg, 0, bs); } } })); /* *INDENT-ON* */ } static void vl_api_bfd_udp_session_dump_t_handler (vl_api_bfd_udp_session_dump_t * mp) { vl_api_registration_t *reg; reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) 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 (reg, 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 (vlib_get_main (), BFD_UDP_API_PARAM_FROM_MP (mp), clib_net_to_host_u32 (mp->flags) & IF_STATUS_API_FLAG_ADMIN_UP); 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) { vl_api_registration_t *reg; reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) 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)); clib_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_api_send_msg (reg, (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); } static void vl_api_bfd_udp_set_echo_source_t_handler (vl_api_bfd_udp_set_echo_source_t * mp) { vl_api_bfd_udp_set_echo_source_reply_t *rmp; int rv; VALIDATE_SW_IF_INDEX (mp); rv = bfd_udp_set_echo_source (clib_net_to_host_u32 (mp->sw_if_index)); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_BFD_UDP_SET_ECHO_SOURCE_REPLY); } static void vl_api_bfd_udp_del_echo_source_t_handler (vl_api_bfd_udp_del_echo_source_t * mp) { vl_api_bfd_udp_del_echo_source_reply_t *rmp; int rv; rv = bfd_udp_del_echo_source (); REPLY_MACRO (VL_API_BFD_UDP_DEL_ECHO_SOURCE_REPLY); } static void vl_api_bfd_udp_get_echo_source_t_handler (vl_api_bfd_udp_get_echo_source_t * mp) { vl_api_bfd_udp_get_echo_source_reply_t *rmp; int rv = 0; int is_set; u32 sw_if_index; int have_usable_ip4; ip4_address_t ip4; int have_usable_ip6; ip6_address_t ip6; bfd_udp_get_echo_source (&is_set, &sw_if_index, &have_usable_ip4, &ip4, &have_usable_ip6, &ip6); /* *INDENT-OFF* */ REPLY_MACRO2 (VL_API_BFD_UDP_GET_ECHO_SOURCE_REPLY, ({ rmp->sw_if_index = ntohl (sw_if_index); if (is_set) { rmp->is_set = true; rmp->sw_if_index = clib_host_to_net_u32 (sw_if_index); if (have_usable_ip4) { rmp->have_usable_ip4 = true; ip4_address_encode(&ip4, rmp->ip4_addr); } else { rmp->have_usable_ip4 = false; } if (have_usable_ip6) { rmp->have_usable_ip6 = true; ip6_address_encode(&ip6, rmp->ip6_addr); } else { rmp->have_usable_ip6 = false; } } else { rmp->is_set = false; rmp->have_usable_ip4 = false; rmp->have_usable_ip6 = false; } })) /* *INDENT-ON* */ } /* * bfd_api_hookup * Add vpe's API message handlers to the table. * vlib has already 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 = vlibapi_get_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: */