vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2017-09-07	Fix session connect_* api message handling.	Dave Wallace	2	-6/+6
2017-08-11	Add VPP Communications Library (VCL)	Dave Wallace	3	-0/+27

/* * 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 "fib_entry.h" #include "fib_entry_src.h" #include "fib_path_list.h" #include "fib_internal.h" #include "fib_table.h" #include "fib_entry_cover.h" #include "fib_attached_export.h" /** * Source initialisation Function */ static void fib_entry_src_interface_init (fib_entry_src_t *src) { src->u.interface.fesi_cover = FIB_NODE_INDEX_INVALID; src->u.interface.fesi_sibling = FIB_NODE_INDEX_INVALID; } static void fib_entry_src_interface_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) { src->fes_pl = fib_path_list_create_special( proto, fib_entry_src_flags_2_path_list_flags(flags), dpo); } static void fib_entry_src_interface_remove (fib_entry_src_t *src) { src->fes_pl = FIB_NODE_INDEX_INVALID; } static void fib_entry_src_interface_path_swap (fib_entry_src_t *src, const fib_entry_t *entry, fib_path_list_flags_t pl_flags, const fib_route_path_t *paths) { ip_adjacency_t *adj; src->fes_pl = fib_path_list_create(pl_flags, paths); /* * this is a hack to get the entry's prefix into the glean adjacency * so that it is available for fast retrieval in the switch path. */ if (!(FIB_ENTRY_FLAG_LOCAL & src->fes_entry_flags)) { adj = adj_get(fib_path_list_get_adj( src->fes_pl, fib_entry_get_default_chain_type(entry))); if (IP_LOOKUP_NEXT_GLEAN == adj->lookup_next_index) { /* * the connected prefix will link to a glean on a non-p2p * u.interface. */ adj->sub_type.glean.receive_addr = entry->fe_prefix.fp_addr; } } } /* * Source activate. * Called when the source is teh new longer best source on the entry */ static int fib_entry_src_interface_activate (fib_entry_src_t *src, const fib_entry_t *fib_entry) { fib_entry_t *cover; if (FIB_ENTRY_FLAG_LOCAL & src->fes_entry_flags) { /* * Track the covering attached/connected cover. This is so that * during an attached export of the cover, this local prefix is * also exported */ src->u.interface.fesi_cover = fib_table_get_less_specific(fib_entry->fe_fib_index, &fib_entry->fe_prefix); ASSERT(FIB_NODE_INDEX_INVALID != src->u.interface.fesi_cover); cover = fib_entry_get(src->u.interface.fesi_cover); src->u.interface.fesi_sibling = fib_entry_cover_track(cover, fib_entry_get_index(fib_entry)); } return (!0); } /* * Source Deactivate. * Called when the source is no longer best source on the entry */ static void fib_entry_src_interface_deactivate (fib_entry_src_t *src, const fib_entry_t *fib_entry) { fib_entry_t *cover; /* * remove the dependency on the covering entry */ if (FIB_NODE_INDEX_INVALID != src->u.interface.fesi_cover) { cover = fib_entry_get(src->u.interface.fesi_cover); fib_entry_cover_untrack(cover, src->u.interface.fesi_sibling); src->u.interface.fesi_cover = FIB_NODE_INDEX_INVALID; } } static fib_entry_src_cover_res_t fib_entry_src_interface_cover_change (fib_entry_src_t *src, const fib_entry_t *fib_entry) { fib_entry_src_cover_res_t res = { .install = !0, .bw_reason = FIB_NODE_BW_REASON_FLAG_NONE, }; if (FIB_NODE_INDEX_INVALID == src->u.interface.fesi_cover) { /* * not tracking the cover. surprised we got poked? */ return (res); } /* * this function is called when this entry's cover has a more specific * entry inserted benaeth it. That does not necessarily mean that this * entry is covered by the new prefix. check that */ if (src->u.interface.fesi_cover != fib_table_get_less_specific(fib_entry->fe_fib_index, &fib_entry->fe_prefix)) { fib_entry_src_interface_deactivate(src, fib_entry); fib_entry_src_interface_activate(src, fib_entry); } return (res); } static void fib_entry_src_interface_installed (fib_entry_src_t *src, const fib_entry_t *fib_entry) { /* * The interface source now rules! poke our cover to get exported */ fib_entry_t *cover; if (FIB_NODE_INDEX_INVALID != src->u.interface.fesi_cover) { cover = fib_entry_get(src->u.interface.fesi_cover); fib_attached_export_covered_added(cover, fib_entry_get_index(fib_entry)); } } static u8* fib_entry_src_interface_format (fib_entry_src_t *src, u8* s) { return (format(s, " cover:%d", src->u.interface.fesi_cover)); } const static fib_entry_src_vft_t interface_src_vft = { .fesv_init = fib_entry_src_interface_init, .fesv_add = fib_entry_src_interface_add, .fesv_remove = fib_entry_src_interface_remove, .fesv_path_swap = fib_entry_src_interface_path_swap, .fesv_activate = fib_entry_src_interface_activate, .fesv_deactivate = fib_entry_src_interface_deactivate, .fesv_format = fib_entry_src_interface_format, .fesv_installed = fib_entry_src_interface_installed, .fesv_cover_change = fib_entry_src_interface_cover_change, /* * not concerned about updates to the cover. the cover will * decide to export or not */ }; void fib_entry_src_interface_register (void) { fib_entry_src_register(FIB_SOURCE_INTERFACE, &interface_src_vft); }