/* * 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 <stddef.h> #include <vnet/vnet.h> #include <vnet/plugin/plugin.h> #include <abf/abf_policy.h> #include <abf/abf_itf_attach.h> #include <vnet/mpls/mpls_types.h> #include <vnet/fib/fib_path_list.h> #include <vnet/fib/fib_api.h> #include <vpp/app/version.h> #include <vlibapi/api.h> #include <vlibmemory/api.h> /* define message IDs */ #include <abf/abf_msg_enum.h> /* define message structures */ #define vl_typedefs #include <abf/abf_all_api_h.h> #undef vl_typedefs /* define generated endian-swappers */ #define vl_endianfun #include <abf/abf_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 <abf/abf_all_api_h.h> #undef vl_printfun /* Get the API version number */ #define vl_api_version(n,v) static u32 api_version=(v); #include <abf/abf_all_api_h.h> #undef vl_api_version /** * Base message ID fot the plugin */ static u32 abf_base_msg_id; #include <vlibapi/api_helper_macros.h> /* List of message types that this plugin understands */ #define foreach_abf_plugin_api_msg \ _(ABF_PLUGIN_GET_VERSION, abf_plugin_get_version) \ _(ABF_POLICY_ADD_DEL, abf_policy_add_del) \ _(ABF_POLICY_DUMP, abf_policy_dump) \ _(ABF_ITF_ATTACH_ADD_DEL, abf_itf_attach_add_del) \ _(ABF_ITF_ATTACH_DUMP, abf_itf_attach_dump) static void vl_api_abf_plugin_get_version_t_handler (vl_api_abf_plugin_get_version_t * mp) { vl_api_abf_plugin_get_version_reply_t *rmp; int msg_size = sizeof (*rmp); unix_shared_memory_queue_t *q; q = vl_api_client_index_to_input_queue (mp->client_index); if (q == 0) { return; } rmp = vl_msg_api_alloc (msg_size); memset (rmp, 0, msg_size); rmp->_vl_msg_id = ntohs (VL_API_ABF_PLUGIN_GET_VERSION_REPLY + abf_base_msg_id); rmp->context = mp->context; rmp->major = htonl (ABF_PLUGIN_VERSION_MAJOR); rmp->minor = htonl (ABF_PLUGIN_VERSION_MINOR); vl_msg_api_send_shmem (q, (u8 *) & rmp); } static void vl_api_abf_policy_add_del_t_handler (vl_api_abf_policy_add_del_t * mp) { vl_api_abf_policy_add_del_reply_t *rmp; fib_route_path_t *paths = NULL, *path; int rv = 0; u8 pi; vec_validate (paths, mp->policy.n_paths - 1); for (pi = 0; pi < mp->policy.n_paths; pi++) { path = &paths[pi]; rv = fib_path_api_parse (&mp->policy.paths[pi], path); if (0 != rv) { goto done; } } if (mp->is_add) { abf_policy_update (ntohl (mp->policy.policy_id), ntohl (mp->policy.acl_index), paths); } else { abf_policy_delete (ntohl (mp->policy.policy_id), paths); } done: vec_free (paths); REPLY_MACRO (VL_API_ABF_POLICY_ADD_DEL_REPLY + abf_base_msg_id); } static void vl_api_abf_itf_attach_add_del_t_handler (vl_api_abf_itf_attach_add_del_t * mp) { vl_api_abf_itf_attach_add_del_reply_t *rmp; fib_protocol_t fproto = (mp->attach.is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4); int rv = 0; if (mp->is_add) { abf_itf_attach (fproto, ntohl (mp->attach.policy_id), ntohl (mp->attach.priority), ntohl (mp->attach.sw_if_index)); } else { abf_itf_detach (fproto, ntohl (mp->attach.policy_id), ntohl (mp->attach.sw_if_index)); } REPLY_MACRO (VL_API_ABF_ITF_ATTACH_ADD_DEL_REPLY + abf_base_msg_id); } typedef struct abf_dump_walk_ctx_t_ { unix_shared_memory_queue_t *q; u32 context; } abf_dump_walk_ctx_t; static int abf_policy_send_details (u32 api, void *args) { fib_route_path_encode_t *api_rpaths = NULL, *api_rpath; vl_api_abf_policy_details_t *mp; abf_dump_walk_ctx_t *ctx; vl_api_fib_path_t *fp; size_t msg_size; abf_policy_t *ap; u8 n_paths; ctx = args; ap = abf_policy_get (api); n_paths = fib_path_list_get_n_paths (ap->ap_pl); msg_size = sizeof (*mp) + sizeof (mp->policy.paths[0]) * n_paths; mp = vl_msg_api_alloc (msg_size); memset (mp, 0, msg_size); mp->_vl_msg_id = ntohs (VL_API_ABF_POLICY_DETAILS + abf_base_msg_id); /* fill in the message */ mp->context = ctx->context; mp->policy.n_paths = n_paths; mp->policy.acl_index = htonl (ap->ap_acl); mp->policy.policy_id = htonl (ap->ap_id); fib_path_list_walk (ap->ap_pl, fib_path_encode, &api_rpaths); fp = mp->policy.paths; vec_foreach (api_rpath, api_rpaths) { fib_api_path_encode (api_rpath, fp); fp++; } vl_msg_api_send_shmem (ctx->q, (u8 *) & mp); return (1); } static void vl_api_abf_policy_dump_t_handler (vl_api_abf_policy_dump_t * mp) { unix_shared_memory_queue_t *q; q = vl_api_client_index_to_input_queue (mp->client_index); if (q == 0) { return; } abf_dump_walk_ctx_t ctx = { .q = q, .context = mp->context, }; abf_policy_walk (abf_policy_send_details, &ctx); } static int abf_itf_attach_send_details (u32 aiai, void *args) { vl_api_abf_itf_attach_details_t *mp; abf_dump_walk_ctx_t *ctx; abf_itf_attach_t *aia; abf_policy_t *ap; ctx = args; aia = abf_itf_attach_get (aiai); ap = abf_policy_get (aia->aia_abf); mp = vl_msg_api_alloc (sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_ABF_ITF_ATTACH_DETAILS + abf_base_msg_id); mp->context = ctx->context; mp->attach.policy_id = htonl (ap->ap_id); mp->attach.sw_if_index = htonl (aia->aia_sw_if_index); mp->attach.priority = htonl (aia->aia_prio); mp->attach.is_ipv6 = (aia->aia_proto == FIB_PROTOCOL_IP6); vl_msg_api_send_shmem (ctx->q, (u8 *) & mp); return (1); } static void vl_api_abf_itf_attach_dump_t_handler (vl_api_abf_itf_attach_dump_t * mp) { unix_shared_memory_queue_t *q; q = vl_api_client_index_to_input_queue (mp->client_index); if (q == 0) { return; } abf_dump_walk_ctx_t ctx = { .q = q, .context = mp->context, }; abf_itf_attach_walk (abf_itf_attach_send_details, &ctx); } #define vl_msg_name_crc_list #include <abf/abf_all_api_h.h> #undef vl_msg_name_crc_list /* Set up the API message handling tables */ static clib_error_t * abf_plugin_api_hookup (vlib_main_t * vm) { #define _(N,n) \ vl_msg_api_set_handlers((VL_API_##N + abf_base_msg_id), \ #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_abf_plugin_api_msg; #undef _ return 0; } static void setup_message_id_table (api_main_t * apim) { #define _(id,n,crc) \ vl_msg_api_add_msg_name_crc (apim, #n "_" #crc, id + abf_base_msg_id); foreach_vl_msg_name_crc_abf; #undef _ } static clib_error_t * abf_api_init (vlib_main_t * vm) { clib_error_t *error = 0; u8 *name = format (0, "abf_%08x%c", api_version, 0); /* Ask for a correctly-sized block of API message decode slots */ abf_base_msg_id = vl_msg_api_get_msg_ids ((char *) name, VL_MSG_FIRST_AVAILABLE); error = abf_plugin_api_hookup (vm); /* Add our API messages to the global name_crc hash table */ setup_message_id_table (&api_main); vec_free (name); return error; } VLIB_INIT_FUNCTION (abf_api_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */