diff options
Diffstat (limited to 'src/vnet/bfd/bfd_api.c')
| -rw-r--r-- | src/vnet/bfd/bfd_api.c | 411 |
1 files changed, 411 insertions, 0 deletions
diff --git a/src/vnet/bfd/bfd_api.c b/src/vnet/bfd/bfd_api.c new file mode 100644 index 00000000..185c03cf --- /dev/null +++ b/src/vnet/bfd/bfd_api.c @@ -0,0 +1,411 @@ +/* + *------------------------------------------------------------------ + * 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/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) + +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_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 (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 ((!bs->auth.is_delayed && bs->auth.curr_key) || + (bs->auth.is_delayed && bs->auth.next_key)) + { + mp->is_authenticated = 1; + } + 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); + } + 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)); + } + + 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_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); +} + +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); +} + +/* + * 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: + */ |