/* * 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 <vnet/format_fns.h> #include <abf/abf.api_enum.h> #include <abf/abf.api_types.h> /** * Base message ID fot the plugin */ static u32 abf_base_msg_id; #include <vlibapi/api_helper_macros.h> 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; vl_api_registration_t *rp; rp = vl_api_client_index_to_registration (mp->client_index); if (rp == 0) return; rmp = vl_msg_api_alloc (sizeof (*rmp)); 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_api_send_msg (rp, (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_api_path_decode (&mp->policy.paths[pi], path); if (0 != rv) { goto done; } } if (mp->is_add) { rv = abf_policy_update (ntohl (mp->policy.policy_id), ntohl (mp->policy.acl_index), paths); } else { rv = 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_ { vl_api_registration_t *rp; u32 context; } abf_dump_walk_ctx_t; static int abf_policy_send_details (u32 api, void *args) { fib_path_encode_ctx_t walk_ctx = { .rpaths = NULL, }; vl_api_abf_policy_details_t *mp; abf_dump_walk_ctx_t *ctx; fib_route_path_t *rpath; 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); clib_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_w_ext (ap->ap_pl, NULL, fib_path_encode, &walk_ctx); fp = mp->policy.paths; vec_foreach (rpath, walk_ctx.rpaths) { fib_api_path_encode (rpath, fp); fp++; } vl_api_send_msg (ctx->rp, (u8 *) mp); vec_free (walk_ctx.rpaths); return (1); } static void vl_api_abf_policy_dump_t_handler (vl_api_abf_policy_dump_t * mp) { vl_api_registration_t *rp; rp = vl_api_client_index_to_registration (mp->client_index); if (rp == 0) return; abf_dump_walk_ctx_t ctx = { .rp = rp, .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_api_send_msg (ctx->rp, (u8 *) mp); return (1); } static void vl_api_abf_itf_attach_dump_t_handler (vl_api_abf_itf_attach_dump_t * mp) { vl_api_registration_t *rp; rp = vl_api_client_index_to_registration (mp->client_index); if (rp == 0) return; abf_dump_walk_ctx_t ctx = { .rp = rp, .context = mp->context, }; abf_itf_attach_walk (abf_itf_attach_send_details, &ctx); } #include <abf/abf.api.c> static clib_error_t * abf_api_init (vlib_main_t * vm) { /* Ask for a correctly-sized block of API message decode slots */ abf_base_msg_id = setup_message_id_table (); return 0; } VLIB_INIT_FUNCTION (abf_api_init); /* *INDENT-OFF* */ VLIB_PLUGIN_REGISTER () = { .version = VPP_BUILD_VER, .description = "Access Control List (ACL) Based Forwarding", }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */