diff options
Diffstat (limited to 'vnet/vnet/adj/adj_nbr.c')
| -rw-r--r-- | vnet/vnet/adj/adj_nbr.c | 835 |
1 files changed, 835 insertions, 0 deletions
diff --git a/vnet/vnet/adj/adj_nbr.c b/vnet/vnet/adj/adj_nbr.c new file mode 100644 index 00000000..7da1becd --- /dev/null +++ b/vnet/vnet/adj/adj_nbr.c @@ -0,0 +1,835 @@ +/* + * 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/adj/adj_nbr.h> +#include <vnet/adj/adj_internal.h> +#include <vnet/ethernet/arp_packet.h> +#include <vnet/fib/fib_walk.h> + +/* + * Vector Hash tables of neighbour (traditional) adjacencies + * Key: interface(for the vector index), address (and its proto), + * link-type/ether-type. + */ +static BVT(clib_bihash) **adj_nbr_tables[FIB_PROTOCOL_MAX]; + +// FIXME SIZE APPROPRIATELY. ASK DAVEB. +#define ADJ_NBR_DEFAULT_HASH_NUM_BUCKETS (64 * 64) +#define ADJ_NBR_DEFAULT_HASH_MEMORY_SIZE (32<<20) + + +#define ADJ_NBR_SET_KEY(_key, _lt, _nh) \ +{ \ + _key.key[0] = (_nh)->as_u64[0]; \ + _key.key[1] = (_nh)->as_u64[1]; \ + _key.key[2] = (_lt); \ +} + +#define ADJ_NBR_ITF_OK(_proto, _itf) \ + (((_itf) < vec_len(adj_nbr_tables[_proto])) && \ + (NULL != adj_nbr_tables[_proto][sw_if_index])) + +static void +adj_nbr_insert (fib_protocol_t nh_proto, + fib_link_t link_type, + const ip46_address_t *nh_addr, + u32 sw_if_index, + adj_index_t adj_index) +{ + BVT(clib_bihash_kv) kv; + + if (sw_if_index >= vec_len(adj_nbr_tables[nh_proto])) + { + vec_validate(adj_nbr_tables[nh_proto], sw_if_index); + } + if (NULL == adj_nbr_tables[nh_proto][sw_if_index]) + { + adj_nbr_tables[nh_proto][sw_if_index] = + clib_mem_alloc_aligned(sizeof(BVT(clib_bihash)), + CLIB_CACHE_LINE_BYTES); + memset(adj_nbr_tables[nh_proto][sw_if_index], + 0, + sizeof(BVT(clib_bihash))); + + BV(clib_bihash_init) (adj_nbr_tables[nh_proto][sw_if_index], + "Adjacency Neighbour table", + ADJ_NBR_DEFAULT_HASH_NUM_BUCKETS, + ADJ_NBR_DEFAULT_HASH_MEMORY_SIZE); + } + + ADJ_NBR_SET_KEY(kv, link_type, nh_addr); + kv.value = adj_index; + + BV(clib_bihash_add_del) (adj_nbr_tables[nh_proto][sw_if_index], &kv, 1); +} + +void +adj_nbr_remove (fib_protocol_t nh_proto, + fib_link_t link_type, + const ip46_address_t *nh_addr, + u32 sw_if_index) +{ + BVT(clib_bihash_kv) kv; + + if (!ADJ_NBR_ITF_OK(nh_proto, sw_if_index)) + return; + + ADJ_NBR_SET_KEY(kv, link_type, nh_addr); + + BV(clib_bihash_add_del) (adj_nbr_tables[nh_proto][sw_if_index], &kv, 0); +} + +static adj_index_t +adj_nbr_find (fib_protocol_t nh_proto, + fib_link_t link_type, + const ip46_address_t *nh_addr, + u32 sw_if_index) +{ + BVT(clib_bihash_kv) kv; + + ADJ_NBR_SET_KEY(kv, link_type, nh_addr); + + if (!ADJ_NBR_ITF_OK(nh_proto, sw_if_index)) + return (ADJ_INDEX_INVALID); + + if (BV(clib_bihash_search)(adj_nbr_tables[nh_proto][sw_if_index], + &kv, &kv) < 0) + { + return (ADJ_INDEX_INVALID); + } + else + { + return (kv.value); + } +} + +static inline vlib_node_registration_t* +adj_get_nd_node (fib_protocol_t proto) +{ + switch (proto) { + case FIB_PROTOCOL_IP4: + return (&ip4_arp_node); + case FIB_PROTOCOL_IP6: + return (&ip6_discover_neighbor_node); + case FIB_PROTOCOL_MPLS: + break; + } + ASSERT(0); + return (NULL); +} + +static void +adj_ip4_nbr_probe (ip_adjacency_t *adj) +{ + vnet_main_t * vnm = vnet_get_main(); + ip4_main_t * im = &ip4_main; + ip_interface_address_t * ia; + ethernet_arp_header_t * h; + vnet_hw_interface_t * hi; + vnet_sw_interface_t * si; + ip4_address_t * src; + vlib_buffer_t * b; + vlib_main_t * vm; + u32 bi = 0; + + vm = vlib_get_main(); + + si = vnet_get_sw_interface (vnm, + adj->rewrite_header.sw_if_index); + + if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)) + { + return; + } + + src = + ip4_interface_address_matching_destination(im, + &adj->sub_type.nbr.next_hop.ip4, + adj->rewrite_header.sw_if_index, + &ia); + if (! src) + { + return; + } + + h = vlib_packet_template_get_packet (vm, &im->ip4_arp_request_packet_template, &bi); + + hi = vnet_get_sup_hw_interface (vnm, adj->rewrite_header.sw_if_index); + + clib_memcpy (h->ip4_over_ethernet[0].ethernet, + hi->hw_address, + sizeof (h->ip4_over_ethernet[0].ethernet)); + + h->ip4_over_ethernet[0].ip4 = src[0]; + h->ip4_over_ethernet[1].ip4 = adj->sub_type.nbr.next_hop.ip4; + + b = vlib_get_buffer (vm, bi); + vnet_buffer (b)->sw_if_index[VLIB_RX] = + vnet_buffer (b)->sw_if_index[VLIB_TX] = + adj->rewrite_header.sw_if_index; + + /* Add encapsulation string for software interface (e.g. ethernet header). */ + vnet_rewrite_one_header (adj[0], h, sizeof (ethernet_header_t)); + vlib_buffer_advance (b, -adj->rewrite_header.data_bytes); + + { + vlib_frame_t * f = vlib_get_frame_to_node (vm, hi->output_node_index); + u32 * to_next = vlib_frame_vector_args (f); + to_next[0] = bi; + f->n_vectors = 1; + vlib_put_frame_to_node (vm, hi->output_node_index, f); + } +} + +static void +adj_ip6_nbr_probe (ip_adjacency_t *adj) +{ + icmp6_neighbor_solicitation_header_t * h; + vnet_main_t * vnm = vnet_get_main(); + ip6_main_t * im = &ip6_main; + ip_interface_address_t * ia; + ip6_address_t * dst, *src; + vnet_hw_interface_t * hi; + vnet_sw_interface_t * si; + vlib_buffer_t * b; + int bogus_length; + vlib_main_t * vm; + u32 bi = 0; + + vm = vlib_get_main(); + + si = vnet_get_sw_interface(vnm, adj->rewrite_header.sw_if_index); + dst = &adj->sub_type.nbr.next_hop.ip6; + + if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)) + { + return; + } + src = ip6_interface_address_matching_destination(im, dst, + adj->rewrite_header.sw_if_index, + &ia); + if (! src) + { + return; + } + + h = vlib_packet_template_get_packet(vm, + &im->discover_neighbor_packet_template, + &bi); + + hi = vnet_get_sup_hw_interface(vnm, adj->rewrite_header.sw_if_index); + + h->ip.dst_address.as_u8[13] = dst->as_u8[13]; + h->ip.dst_address.as_u8[14] = dst->as_u8[14]; + h->ip.dst_address.as_u8[15] = dst->as_u8[15]; + h->ip.src_address = src[0]; + h->neighbor.target_address = dst[0]; + + clib_memcpy (h->link_layer_option.ethernet_address, + hi->hw_address, + vec_len(hi->hw_address)); + + h->neighbor.icmp.checksum = + ip6_tcp_udp_icmp_compute_checksum(vm, 0, &h->ip, &bogus_length); + ASSERT(bogus_length == 0); + + b = vlib_get_buffer (vm, bi); + vnet_buffer (b)->sw_if_index[VLIB_RX] = + vnet_buffer (b)->sw_if_index[VLIB_TX] = + adj->rewrite_header.sw_if_index; + + /* Add encapsulation string for software interface (e.g. ethernet header). */ + vnet_rewrite_one_header(adj[0], h, sizeof (ethernet_header_t)); + vlib_buffer_advance(b, -adj->rewrite_header.data_bytes); + + { + vlib_frame_t * f = vlib_get_frame_to_node(vm, hi->output_node_index); + u32 * to_next = vlib_frame_vector_args(f); + to_next[0] = bi; + f->n_vectors = 1; + vlib_put_frame_to_node(vm, hi->output_node_index, f); + } +} + +static ip_adjacency_t* +adj_nbr_alloc (fib_protocol_t nh_proto, + fib_link_t link_type, + const ip46_address_t *nh_addr, + u32 sw_if_index) +{ + ip_adjacency_t *adj; + + adj = adj_alloc(nh_proto); + + adj_nbr_insert(nh_proto, link_type, nh_addr, + sw_if_index, + adj->heap_handle); + + /* + * since we just added the ADJ we have no rewrite string for it, + * so its for ARP + */ + adj->lookup_next_index = IP_LOOKUP_NEXT_ARP; + adj->sub_type.nbr.next_hop = *nh_addr; + adj->ia_link = link_type; + adj->ia_nh_proto = nh_proto; + memset(&adj->sub_type.midchain.next_dpo, 0, + sizeof(adj->sub_type.midchain.next_dpo)); + + return (adj); +} + +/* + * adj_add_for_nbr + * + * Add an adjacency for the neighbour requested. + * + * The key for an adj is: + * - the Next-hops protocol (i.e. v4 or v6) + * - the address of the next-hop + * - the interface the next-hop is reachable through + * - fib_index; this is broken. i will fix it. + * the adj lookup currently occurs in the FIB. + */ +adj_index_t +adj_nbr_add_or_lock (fib_protocol_t nh_proto, + fib_link_t link_type, + const ip46_address_t *nh_addr, + u32 sw_if_index) +{ + adj_index_t adj_index; + ip_adjacency_t *adj; + + adj_index = adj_nbr_find(nh_proto, link_type, nh_addr, sw_if_index); + + if (ADJ_INDEX_INVALID == adj_index) + { + adj = adj_nbr_alloc(nh_proto, link_type, nh_addr, sw_if_index); + + /* + * If there is no next-hop, this is the 'auto-adj' used on p2p + * links instead of a glean. + */ + if (ip46_address_is_zero(nh_addr)) + { + adj->lookup_next_index = IP_LOOKUP_NEXT_REWRITE; + + vnet_rewrite_for_sw_interface(vnet_get_main(), + adj_fib_link_2_vnet(link_type), + sw_if_index, + adj_get_rewrite_node(link_type)->index, + VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST, + &adj->rewrite_header, + sizeof (adj->rewrite_data)); + } + else + { + vnet_rewrite_for_sw_interface(vnet_get_main(), + adj_fib_proto_2_nd(nh_proto), + sw_if_index, + adj_get_nd_node(nh_proto)->index, + VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST, + &adj->rewrite_header, + sizeof (adj->rewrite_data)); + + switch (nh_proto) + { + case FIB_PROTOCOL_IP4: + adj_ip4_nbr_probe(adj); + break; + case FIB_PROTOCOL_IP6: + adj_ip6_nbr_probe(adj); + break; + case FIB_PROTOCOL_MPLS: + break; + } + } + } + else + { + adj = adj_get(adj_index); + } + + adj_lock(adj->heap_handle); + + return (adj->heap_handle); +} + +adj_index_t +adj_nbr_add_or_lock_w_rewrite (fib_protocol_t nh_proto, + fib_link_t link_type, + const ip46_address_t *nh_addr, + u32 sw_if_index, + u8 *rewrite) +{ + adj_index_t adj_index; + ip_adjacency_t *adj; + + adj_index = adj_nbr_find(nh_proto, link_type, nh_addr, sw_if_index); + + if (ADJ_INDEX_INVALID == adj_index) + { + adj = adj_nbr_alloc(nh_proto, link_type, nh_addr, sw_if_index); + adj->rewrite_header.sw_if_index = sw_if_index; + } + else + { + adj = adj_get(adj_index); + } + + adj_lock(adj->heap_handle); + adj_nbr_update_rewrite(adj->heap_handle, rewrite); + + return (adj->heap_handle); +} + +/** + * adj_nbr_update_rewrite + * + * Update the adjacency's rewrite string. A NULL string implies the + * rewirte is reset (i.e. when ARP/ND etnry is gone). + * NB: the adj being updated may be handling traffic in the DP. + */ +void +adj_nbr_update_rewrite (adj_index_t adj_index, + u8 *rewrite) +{ + ip_adjacency_t *adj; + + ASSERT(ADJ_INDEX_INVALID != adj_index); + + adj = adj_get(adj_index); + + if (NULL != rewrite) + { + /* + * new rewrite provided. + * use a dummy rewrite header to get the interface to print into. + */ + ip_adjacency_t dummy; + + vnet_rewrite_for_sw_interface(vnet_get_main(), + adj_fib_link_2_vnet(adj->ia_link), + adj->rewrite_header.sw_if_index, + adj_get_rewrite_node(adj->ia_link)->index, + rewrite, + &dummy.rewrite_header, + sizeof (dummy.rewrite_data)); + + if (IP_LOOKUP_NEXT_REWRITE == adj->lookup_next_index) + { + /* + * this is an update of an existing rewrite. + * we can't just paste in the new rewrite as that is not atomic. + * So we briefly swap the ADJ to ARP type, paste, then swap back. + */ + adj->lookup_next_index = IP_LOOKUP_NEXT_ARP; + CLIB_MEMORY_BARRIER(); + } + /* + * else + * this is the first time the rewrite is added. + * paste it on then swap the next type. + */ + clib_memcpy(&adj->rewrite_header, + &dummy.rewrite_header, + VLIB_BUFFER_PRE_DATA_SIZE); + + adj->lookup_next_index = IP_LOOKUP_NEXT_REWRITE; + } + else + { + /* + * clear the rewrite. + */ + adj->lookup_next_index = IP_LOOKUP_NEXT_ARP; + CLIB_MEMORY_BARRIER(); + + adj->rewrite_header.data_bytes = 0; + } + + /* + * time for walkies fido. + * The link type MPLS Adj never has children. So if it is this adj + * that is updated, we need to walk from its IP sibling. + */ + if (FIB_LINK_MPLS == adj->ia_link) + { + adj_index = adj_nbr_find(adj->ia_nh_proto, + fib_proto_to_link(adj->ia_nh_proto), + &adj->sub_type.nbr.next_hop, + adj->rewrite_header.sw_if_index); + + ASSERT(ADJ_INDEX_INVALID != adj_index); + } + + fib_node_back_walk_ctx_t bw_ctx = { + .fnbw_reason = FIB_NODE_BW_REASON_FLAG_ADJ_UPDATE, + /* + * This walk only needs to go back one level, but there is no control here. + * the first receiving fib_entry_t will quash the walk + */ + }; + + fib_walk_sync(FIB_NODE_TYPE_ADJ, adj_index, &bw_ctx); +} + +typedef struct adj_db_count_ctx_t_ { + u64 count; +} adj_db_count_ctx_t; + +static void +adj_db_count (BVT(clib_bihash_kv) * kvp, + void *arg) +{ + adj_db_count_ctx_t * ctx = arg; + ctx->count++; +} + +u32 +adj_nbr_db_size (void) +{ + adj_db_count_ctx_t ctx = { + .count = 0, + }; + fib_protocol_t proto; + u32 sw_if_index = 0; + + for (proto = FIB_PROTOCOL_IP4; proto <= FIB_PROTOCOL_IP6; proto++) + { + vec_foreach_index(sw_if_index, adj_nbr_tables[proto]) + { + if (NULL != adj_nbr_tables[proto][sw_if_index]) + { + BV(clib_bihash_foreach_key_value_pair) ( + adj_nbr_tables[proto][sw_if_index], + adj_db_count, + &ctx); + } + } + } + return (ctx.count); +} + +/** + * Context for the state change walk of the DB + */ +typedef struct adj_nbr_interface_state_change_ctx_t_ +{ + /** + * Flags passed from the vnet notifiy function + */ + int flags; +} adj_nbr_interface_state_change_ctx_t; + +static void +adj_nbr_interface_state_change_one (BVT(clib_bihash_kv) * kvp, + void *arg) +{ + /* + * Back walk the graph to inform the forwarding entries + * that this interface state has changed. + */ + adj_nbr_interface_state_change_ctx_t *ctx = arg; + + fib_node_back_walk_ctx_t bw_ctx = { + .fnbw_reason = (ctx->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP ? + FIB_NODE_BW_REASON_FLAG_INTERFACE_UP : + FIB_NODE_BW_REASON_FLAG_INTERFACE_DOWN), + }; + + fib_walk_sync(FIB_NODE_TYPE_ADJ, kvp->value, &bw_ctx); +} + +static clib_error_t * +adj_nbr_interface_state_change (vnet_main_t * vnm, + u32 sw_if_index, + u32 flags) +{ + fib_protocol_t proto; + + /* + * walk each adj on the interface and trigger a walk from that adj + */ + for (proto = FIB_PROTOCOL_IP4; proto <= FIB_PROTOCOL_IP6; proto++) + { + if (!ADJ_NBR_ITF_OK(proto, sw_if_index)) + continue; + + adj_nbr_interface_state_change_ctx_t ctx = { + .flags = flags, + }; + + BV(clib_bihash_foreach_key_value_pair) ( + adj_nbr_tables[proto][sw_if_index], + adj_nbr_interface_state_change_one, + &ctx); + } + + return (NULL); +} + +VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION(adj_nbr_interface_state_change); + +static void +adj_nbr_interface_delete_one (BVT(clib_bihash_kv) * kvp, + void *arg) +{ + /* + * Back walk the graph to inform the forwarding entries + * that this interface has been deleted. + */ + fib_node_back_walk_ctx_t bw_ctx = { + .fnbw_reason = FIB_NODE_BW_REASON_FLAG_INTERFACE_DELETE, + }; + + fib_walk_sync(FIB_NODE_TYPE_ADJ, kvp->value, &bw_ctx); +} + +/** + * adj_nbr_interface_add_del + * + * Registered to receive interface Add and delete notifications + */ +static clib_error_t * +adj_nbr_interface_add_del (vnet_main_t * vnm, + u32 sw_if_index, + u32 is_add) +{ + fib_protocol_t proto; + + if (is_add) + { + /* + * not interested in interface additions. we will not back walk + * to resolve paths through newly added interfaces. Why? The control + * plane should have the brains to add interfaces first, then routes. + * So the case where there are paths with a interface that matches + * one just created is the case where the path resolved through an + * interface that was deleted, and still has not been removed. The + * new interface added, is NO GUARANTEE that the interface being + * added now, even though it may have the same sw_if_index, is the + * same interface that the path needs. So tough! + * If the control plane wants these routes to resolve it needs to + * remove and add them again. + */ + return (NULL); + } + + for (proto = FIB_PROTOCOL_IP4; proto <= FIB_PROTOCOL_IP6; proto++) + { + if (!ADJ_NBR_ITF_OK(proto, sw_if_index)) + continue; + + BV(clib_bihash_foreach_key_value_pair) ( + adj_nbr_tables[proto][sw_if_index], + adj_nbr_interface_delete_one, + NULL); + } + + return (NULL); + +} + +VNET_SW_INTERFACE_ADD_DEL_FUNCTION(adj_nbr_interface_add_del); + + +static void +adj_nbr_show_one (BVT(clib_bihash_kv) * kvp, + void *arg) +{ + vlib_cli_output (arg, "[@%d] %U", + kvp->value, + format_ip_adjacency, + vnet_get_main(), kvp->value, + FORMAT_IP_ADJACENCY_NONE); +} + +static clib_error_t * +adj_nbr_show (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + adj_index_t ai = ADJ_INDEX_INVALID; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "%d", &ai)) + ; + else + break; + } + + if (ADJ_INDEX_INVALID != ai) + { + vlib_cli_output (vm, "[@%d] %U", + ai, + + format_ip_adjacency, + vnet_get_main(), ai, + FORMAT_IP_ADJACENCY_DETAIL); + } + else + { + fib_protocol_t proto; + + for (proto = FIB_PROTOCOL_IP4; proto <= FIB_PROTOCOL_IP6; proto++) + { + u32 sw_if_index; + + vec_foreach_index(sw_if_index, adj_nbr_tables[proto]) + { + if (!ADJ_NBR_ITF_OK(proto, sw_if_index)) + continue; + + BV(clib_bihash_foreach_key_value_pair) ( + adj_nbr_tables[proto][sw_if_index], + adj_nbr_show_one, + vm); + } + } + } + + return 0; +} + +VLIB_CLI_COMMAND (ip4_show_fib_command, static) = { + .path = "show adj nbr", + .short_help = "show adj nbr [<adj_index>] [sw_if_index <index>]", + .function = adj_nbr_show, +}; + +u8* +format_adj_nbr_incomplete (u8* s, va_list *ap) +{ + index_t index = va_arg(ap, index_t); + CLIB_UNUSED(u32 indent) = va_arg(ap, u32); + vnet_main_t * vnm = vnet_get_main(); + ip_adjacency_t * adj = adj_get(index); + + s = format (s, "arp-%U", format_fib_link, adj->ia_link); + s = format (s, ": via %U", + format_ip46_address, &adj->sub_type.nbr.next_hop); + s = format (s, " %U", + format_vnet_sw_interface_name, + vnm, + vnet_get_sw_interface(vnm, + adj->rewrite_header.sw_if_index)); + + return (s); +} + +u8* +format_adj_nbr (u8* s, va_list *ap) +{ + index_t index = va_arg(ap, index_t); + CLIB_UNUSED(u32 indent) = va_arg(ap, u32); + vnet_main_t * vnm = vnet_get_main(); + ip_adjacency_t * adj = adj_get(index); + + s = format (s, "%U", format_fib_link, adj->ia_link); + s = format (s, " via %U ", + format_ip46_address, &adj->sub_type.nbr.next_hop); + s = format (s, "%U", + format_vnet_rewrite, + vnm->vlib_main, &adj->rewrite_header, sizeof (adj->rewrite_data), 0); + + return (s); +} + +static void +adj_dpo_lock (dpo_id_t *dpo) +{ + adj_lock(dpo->dpoi_index); +} +static void +adj_dpo_unlock (dpo_id_t *dpo) +{ + adj_unlock(dpo->dpoi_index); +} + +const static dpo_vft_t adj_nbr_dpo_vft = { + .dv_lock = adj_dpo_lock, + .dv_unlock = adj_dpo_unlock, + .dv_format = format_adj_nbr, +}; +const static dpo_vft_t adj_nbr_incompl_dpo_vft = { + .dv_lock = adj_dpo_lock, + .dv_unlock = adj_dpo_unlock, + .dv_format = format_adj_nbr_incomplete, +}; + +/** + * @brief The per-protocol VLIB graph nodes that are assigned to an adjacency + * object. + * + * this means that these graph nodes are ones from which a nbr is the + * parent object in the DPO-graph. + */ +const static char* const nbr_ip4_nodes[] = +{ + "ip4-rewrite-transit", + NULL, +}; +const static char* const nbr_ip6_nodes[] = +{ + "ip6-rewrite", + NULL, +}; +const static char* const nbr_mpls_nodes[] = +{ + "mpls-output", + NULL, +}; +const static char* const * const nbr_nodes[DPO_PROTO_NUM] = +{ + [DPO_PROTO_IP4] = nbr_ip4_nodes, + [DPO_PROTO_IP6] = nbr_ip6_nodes, + [DPO_PROTO_MPLS] = nbr_mpls_nodes, +}; + +const static char* const nbr_incomplete_ip4_nodes[] = +{ + "ip4-arp", + NULL, +}; +const static char* const nbr_incomplete_ip6_nodes[] = +{ + "ip6-discover-neighbor", + NULL, +}; +const static char* const nbr_incomplete_mpls_nodes[] = +{ + "mpls-adj-incomplete", + NULL, +}; + +const static char* const * const nbr_incomplete_nodes[DPO_PROTO_NUM] = +{ + [DPO_PROTO_IP4] = nbr_incomplete_ip4_nodes, + [DPO_PROTO_IP6] = nbr_incomplete_ip6_nodes, + [DPO_PROTO_MPLS] = nbr_incomplete_mpls_nodes, +}; + +void +adj_nbr_module_init (void) +{ + dpo_register(DPO_ADJACENCY, + &adj_nbr_dpo_vft, + nbr_nodes); + dpo_register(DPO_ADJACENCY_INCOMPLETE, + &adj_nbr_incompl_dpo_vft, + nbr_incomplete_nodes); +} |