diff options
Diffstat (limited to 'hicn-plugin/src/faces/ip/face_ip.c')
| -rwxr-xr-x | hicn-plugin/src/faces/ip/face_ip.c | 326 |
1 files changed, 326 insertions, 0 deletions
diff --git a/hicn-plugin/src/faces/ip/face_ip.c b/hicn-plugin/src/faces/ip/face_ip.c new file mode 100755 index 000000000..c7f6a1ba1 --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip.c @@ -0,0 +1,326 @@ +/* + * Copyright (c) 2017-2019 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 "face_ip.h" +#include "face_ip_node.h" +#include "dpo_ip.h" +#include "../../strategy_dpo_manager.h" +#include "../face.h" +#include "../../cache_policies/cs_lru.h" +#include "../../infra.h" +#include "../../hicn.h" +#include "../app/face_prod.h" +#include "../app/face_cons.h" + +#include "../../mapme.h" // HICN_MAPME_EVENT_* +#include "../../mapme_eventmgr.h" // hicn_mapme_eventmgr_process_node + +extern vlib_node_registration_t hicn_mapme_eventmgr_process_node; + +u32 strategy_face_ip4_vlib_edge; +u32 strategy_face_ip6_vlib_edge; + +void +hicn_face_ip_init (vlib_main_t * vm) +{ + int strategy_nodes_n = hicn_strategy_get_all_available (); + + /* Default Strategy has index 0 and it always exists */ + strategy_face_ip4_vlib_edge = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft + (default_dpo. + hicn_dpo_get_type ())-> + get_strategy_node_index + (), + hicn_face_ip4_output_node. + index); + + strategy_face_ip6_vlib_edge = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft + (default_dpo. + hicn_dpo_get_type ())-> + get_strategy_node_index + (), + hicn_face_ip6_output_node. + index); + /* + * Create and edge between al the other strategy nodes + * and the ip_encap nodes. + */ + for (int i = 1; i < strategy_nodes_n; i++) + { + u32 temp_index4 = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft_from_id + (i)->get_strategy_node_index (), + hicn_face_ip4_output_node.index); + u32 temp_index6 = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft_from_id + (i)->get_strategy_node_index (), + hicn_face_ip6_output_node.index); + ASSERT (temp_index4 == strategy_face_ip4_vlib_edge); + ASSERT (temp_index6 == strategy_face_ip6_vlib_edge); + } + + hicn_dpo_ip_module_init (); + + register_face_type (hicn_face_ip_type, &ip_vft, "ip"); +} + +int +hicn_face_ip_del (hicn_face_id_t face_id) +{ + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + hicn_face_ip_t *face_ip = (hicn_face_ip_t *) face->data; + hicn_face_ip_key_t key; + hicn_face_ip_key_t old_key; + + if (ip46_address_is_ip4 (&face_ip->local_addr)) + { + hicn_face_ip4_get_key (&(face_ip->local_addr.ip4), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_local_hashtb, &key, (uword *) & old_key); + hicn_face_ip4_get_key (&(face_ip->remote_addr.ip4), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_remote_hashtb, &key, (uword *) & old_key); + } + else + { + hicn_face_ip6_get_key (&(face_ip->local_addr.ip6), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_local_hashtb, &key, (uword *) & old_key); + hicn_face_ip6_get_key (&(face_ip->remote_addr.ip6), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_remote_hashtb, &key, (uword *) & old_key); + } + return hicn_face_del (face_id); +} + + +/* + * Utility that adds a new face cache entry. For the moment we assume that the + * ip_adjacency has already been set up. + */ +int +hicn_face_ip_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, + int sw_if, hicn_face_id_t * pfaceid) +{ + fib_protocol_t fib_type; + vnet_link_t link_type; + adj_index_t adj; + dpo_proto_t dpo_proto; + + /* Check if we found at least one ip address */ + if (ip46_address_is_zero (local_addr) || ip46_address_is_zero (remote_addr)) + return HICN_ERROR_FACE_NO_GLOBAL_IP; + + if (ip46_address_is_ip4 (local_addr) && ip46_address_is_ip4 (remote_addr)) + { + link_type = VNET_LINK_IP4; + fib_type = FIB_PROTOCOL_IP4; + } + else + { + link_type = VNET_LINK_IP6; + fib_type = FIB_PROTOCOL_IP6; + } + + + adj = adj_nbr_add_or_lock (fib_type, link_type, remote_addr, sw_if); + + hicn_face_flags_t flags = (hicn_face_flags_t) 0; + flags |= HICN_FACE_FLAGS_FACE; + + hicn_face_t *face; + if (ip46_address_is_ip4 (local_addr)) + { + face = + hicn_face_ip4_get (&(local_addr->ip4), sw_if, + &hicn_face_ip_local_hashtb); + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + face = + hicn_face_ip4_get (&(remote_addr->ip4), sw_if, + &hicn_face_ip_remote_hashtb); + + /* If remote matches the face is a iface */ + if (face == NULL) + { + hicn_iface_ip_add (local_addr, remote_addr, sw_if, pfaceid); + face = hicn_dpoi_get_from_idx (*pfaceid); + } + else + { + *pfaceid = hicn_dpoi_get_index (face); + } + + hicn_face_ip_key_t key; + hicn_face_ip4_get_key (&(local_addr->ip4), sw_if, &key); + + mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) pfaceid, 0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + clib_memcpy (&ip_face->local_addr, local_addr, sizeof (ip4_address_t)); + clib_memcpy (&ip_face->remote_addr, remote_addr, + sizeof (ip4_address_t)); + face->shared.sw_if = sw_if; + face->shared.flags = flags; + face->shared.adj = adj; + + dpo_proto = DPO_PROTO_IP4; + } + else + { + face = + hicn_face_ip6_get (&(local_addr->ip6), sw_if, + &hicn_face_ip_local_hashtb); + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + face = + hicn_face_ip6_get (&(remote_addr->ip6), sw_if, + &hicn_face_ip_remote_hashtb); + + /* If remote matches the face is a iface */ + if (face == NULL) + { + hicn_iface_ip_add (local_addr, remote_addr, sw_if, pfaceid); + face = hicn_dpoi_get_from_idx (*pfaceid); + } + else + { + *pfaceid = hicn_dpoi_get_index (face); + } + + hicn_face_ip_key_t key; + hicn_face_ip6_get_key (&(local_addr->ip6), sw_if, &key); + + mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) pfaceid, 0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + clib_memcpy (&ip_face->local_addr, local_addr, sizeof (ip6_address_t)); + clib_memcpy (&ip_face->remote_addr, remote_addr, + sizeof (ip6_address_t)); + face->shared.sw_if = sw_if; + face->shared.flags = flags; + face->shared.adj = adj; + + dpo_proto = DPO_PROTO_IP6; + } + + retx_t *retx = vlib_process_signal_event_data (vlib_get_main (), + hicn_mapme_eventmgr_process_node. + index, + HICN_MAPME_EVENT_FACE_ADD, 1, + sizeof (retx_t)); + *retx = (retx_t) + { + .prefix = 0,.dpo = (dpo_id_t) + { + .dpoi_type = hicn_face_ip_type,.dpoi_proto = dpo_proto,.dpoi_next_node = + 0,.dpoi_index = *pfaceid,} + }; + + return HICN_ERROR_NONE; +} + +u8 * +format_hicn_face_ip (u8 * s, va_list * args) +{ + index_t index = va_arg (*args, index_t); + CLIB_UNUSED (u32 indent) = va_arg (*args, u32); + hicn_face_t *face; + hicn_face_ip_t *ip_face; + ip_adjacency_t *adj; + vnet_main_t *vnm = vnet_get_main (); + + face = hicn_dpoi_get_from_idx (index); + ip_face = (hicn_face_ip_t *) face->data; + + if (face->shared.flags & HICN_FACE_FLAGS_FACE) + { + ASSERT (face->shared.adj != (adj_index_t) ~ 0); + adj = adj_get (face->shared.adj); + + hicn_face_id_t face_id = hicn_dpoi_get_index (face); + s = format (s, "%U Face %d: ", format_white_space, indent, face_id); + s = format (s, "type IP local %U ", + format_ip46_address, &ip_face->local_addr, IP46_TYPE_ANY); + s = + format (s, "remote %U ", format_ip46_address, &ip_face->remote_addr, + IP46_TYPE_ANY); + s = format (s, "%U", format_vnet_link, adj->ia_link); + s = format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + + if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD)) + s = format (s, " %U", format_hicn_face_prod, face_id, 0); + else if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS)) + s = format (s, " %U", format_hicn_face_cons, face_id, 0); + + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + else + { + hicn_face_id_t face_id = hicn_dpoi_get_index (face); + s = format (s, "%U iFace %d: ", format_white_space, indent, face_id); + s = format (s, "type IP local %U remote %U", + format_ip46_address, &ip_face->local_addr, IP46_TYPE_ANY, + format_ip46_address, &ip_face->remote_addr, IP46_TYPE_ANY); + s = + format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + + if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD)) + s = format (s, " %U", format_hicn_face_prod, face_id, 0); + else if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS)) + s = format (s, " %U", format_hicn_face_cons, face_id, 0); + + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + + return s; +} + +void +hicn_face_ip_get_dpo (hicn_face_t * face, dpo_id_t * dpo) +{ + + hicn_face_ip_t *face_ip = (hicn_face_ip_t *) face->data; + return hicn_dpo_ip_create_from_face (face, dpo, + ip46_address_is_ip4 (&face_ip-> + remote_addr) ? + strategy_face_ip4_vlib_edge : + strategy_face_ip6_vlib_edge); +} + +hicn_face_vft_t ip_vft = { + .format_face = format_hicn_face_ip, + .hicn_face_del = hicn_face_ip_del, + .hicn_face_get_dpo = hicn_face_ip_get_dpo, +}; + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |