diff options
Diffstat (limited to 'src/vnet/fib/fib_entry_src_api.c')
| -rw-r--r-- | src/vnet/fib/fib_entry_src_api.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/src/vnet/fib/fib_entry_src_api.c b/src/vnet/fib/fib_entry_src_api.c new file mode 100644 index 00000000..1cdcfbde --- /dev/null +++ b/src/vnet/fib/fib_entry_src_api.c @@ -0,0 +1,171 @@ +/* + * 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/fib/fib_entry.h> +#include <vnet/fib/fib_entry_src.h> +#include <vnet/fib/fib_path_list.h> +#include <vnet/fib/fib_path_ext.h> + +/** + * Source initialisation Function + */ +static void +fib_entry_src_api_init (fib_entry_src_t *src) +{ +} + +/** + * Source deinitialisation Function + */ +static void +fib_entry_src_api_deinit (fib_entry_src_t *src) +{ +} + +static void +fib_entry_src_api_path_swap (fib_entry_src_t *src, + const fib_entry_t *entry, + fib_path_list_flags_t pl_flags, + const fib_route_path_t *rpaths) +{ + const fib_route_path_t *rpath; + + fib_path_ext_list_flush(&src->fes_path_exts); + + src->fes_pl = fib_path_list_create((FIB_PATH_LIST_FLAG_SHARED | pl_flags), + rpaths); + + vec_foreach(rpath, rpaths) + { + if (NULL != rpath->frp_label_stack) + { + fib_path_ext_list_push_back(&src->fes_path_exts, + src->fes_pl, + FIB_PATH_EXT_MPLS, + rpath); + } + } +} + +static void +fib_entry_src_api_path_add (fib_entry_src_t *src, + const fib_entry_t *entry, + fib_path_list_flags_t pl_flags, + const fib_route_path_t *rpaths) +{ + const fib_route_path_t *rpath; + + if (FIB_NODE_INDEX_INVALID == src->fes_pl) + { + src->fes_pl = + fib_path_list_create((FIB_PATH_LIST_FLAG_SHARED | pl_flags), rpaths); + } + else + { + src->fes_pl = + fib_path_list_copy_and_path_add(src->fes_pl, + (FIB_PATH_LIST_FLAG_SHARED | pl_flags), + rpaths); + } + + /* + * re-resolve all the path-extensions with the new path-list + */ + fib_path_ext_list_resolve(&src->fes_path_exts, src->fes_pl); + + /* + * if the path has a label we need to add a path extension + */ + vec_foreach(rpath, rpaths) + { + if (NULL != rpath->frp_label_stack) + { + fib_path_ext_list_insert(&src->fes_path_exts, + src->fes_pl, + FIB_PATH_EXT_MPLS, + rpath); + } + } +} + +static void +fib_entry_src_api_path_remove (fib_entry_src_t *src, + fib_path_list_flags_t pl_flags, + const fib_route_path_t *rpaths) +{ + const fib_route_path_t *rpath; + + if (FIB_NODE_INDEX_INVALID != src->fes_pl) + { + src->fes_pl = + fib_path_list_copy_and_path_remove(src->fes_pl, + (FIB_PATH_LIST_FLAG_SHARED | pl_flags), + rpaths); + /* + * remove the path-extension for the path + */ + vec_foreach(rpath, rpaths) + { + fib_path_ext_list_remove(&src->fes_path_exts, FIB_PATH_EXT_MPLS, rpath); + }; + /* + * resolve the remaining extensions + */ + fib_path_ext_list_resolve(&src->fes_path_exts, src->fes_pl); + } +} + +static void +fib_entry_src_api_add (fib_entry_src_t *src, + const fib_entry_t *entry, + fib_entry_flag_t flags, + dpo_proto_t proto, + const dpo_id_t *dpo) +{ + if (FIB_ENTRY_FLAG_NONE != flags) + { + src->fes_pl = fib_path_list_create_special( + proto, + fib_entry_src_flags_2_path_list_flags(flags), + dpo); + } +} + +static void +fib_entry_src_api_remove (fib_entry_src_t *src) +{ + src->fes_pl = FIB_NODE_INDEX_INVALID; +} + +const static fib_entry_src_vft_t api_src_vft = { + .fesv_init = fib_entry_src_api_init, + .fesv_deinit = fib_entry_src_api_deinit, + .fesv_add = fib_entry_src_api_add, + .fesv_remove = fib_entry_src_api_remove, + .fesv_path_add = fib_entry_src_api_path_add, + .fesv_path_swap = fib_entry_src_api_path_swap, + .fesv_path_remove = fib_entry_src_api_path_remove, +}; + +void +fib_entry_src_api_register (void) +{ + fib_entry_src_register(FIB_SOURCE_PLUGIN_HI, &api_src_vft); + fib_entry_src_register(FIB_SOURCE_API, &api_src_vft); + fib_entry_src_register(FIB_SOURCE_CLI, &api_src_vft); + fib_entry_src_register(FIB_SOURCE_DHCP, &api_src_vft); + fib_entry_src_register(FIB_SOURCE_IP6_ND_PROXY, &api_src_vft); + fib_entry_src_register(FIB_SOURCE_SR, &api_src_vft); +} |