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/*
* 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 "dpo_ip.h"
mhash_t hicn_face_ip_local_hashtb;
mhash_t hicn_face_ip_remote_hashtb;
dpo_type_t hicn_face_ip_type;
const static char *const hicn_face_ip4dpoi_nodes[] = {
"hicn-face-ip4-input",
"hicn-face-ip4-output",
"hicn-iface-ip4-input",
"hicn-iface-ip4-output",
NULL,
};
const static char *const hicn_face_ip6dpoi_nodes[] = {
"hicn-face-ip6-input",
"hicn-face-ip6-output",
"hicn-iface-ip6-input",
"hicn-iface-ip6-output",
NULL,
};
const static char *const *const hicn_ip_nodes[DPO_PROTO_NUM] = {
[DPO_PROTO_IP4] = hicn_face_ip4dpoi_nodes,
[DPO_PROTO_IP6] = hicn_face_ip6dpoi_nodes
};
const static dpo_vft_t hicn_face_ip_vft = {
.dv_lock = hicn_face_lock,
.dv_unlock = hicn_face_unlock,
.dv_format = format_hicn_face_ip,
};
/* Must be executed after all the strategy nodes are created */
void
hicn_dpo_ip_module_init (void)
{
mhash_init (&hicn_face_ip_local_hashtb,
sizeof (hicn_face_id_t) /* value */ ,
sizeof (hicn_face_ip_key_t) /* key */ );
mhash_init (&hicn_face_ip_remote_hashtb,
sizeof (hicn_face_id_t) /* value */ ,
sizeof (hicn_face_ip_key_t) /* key */ );
/*
* How much useful is the following registration?
* So far it seems that we need it only for setting the dpo_type.
*/
hicn_face_ip_type =
dpo_register_new_type (&hicn_face_ip_vft, hicn_ip_nodes);
}
int
hicn_dpo_ip4_create (dpo_id_t * dpo,
const ip4_address_t * local_addr,
const ip4_address_t * remote_addr,
u32 sw_if,
adj_index_t adj,
u32 node_index,
hicn_face_flags_t flags, hicn_face_id_t * face_id)
{
/* If local matches the dpoi is a face */
hicn_face_t *face =
hicn_face_ip4_get (local_addr, sw_if, &hicn_face_ip_local_hashtb);
u8 hicnb_flags;
if (face != NULL)
return HICN_ERROR_FACE_ALREADY_CREATED;
face = hicn_face_ip4_get (remote_addr, sw_if, &hicn_face_ip_remote_hashtb);
if (face == NULL)
{
hicn_dpo_ip4_add_and_lock_from_remote (dpo, &hicnb_flags, local_addr,
remote_addr, sw_if, node_index);
*face_id = (hicn_face_id_t) dpo->dpoi_index;
face = hicn_dpoi_get_from_idx (*face_id);
}
else
{
*face_id = hicn_dpoi_get_index (face);
dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, *face_id);
dpo->dpoi_next_node = node_index;
}
hicn_face_ip_key_t key;
hicn_face_ip4_get_key (local_addr, sw_if, &key);
mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) face_id, 0);
hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data;
ip46_address_set_ip4 (&ip_face->local_addr, local_addr);
ip46_address_set_ip4 (&ip_face->remote_addr, remote_addr);
face->shared.flags = flags;
face->shared.adj = adj;
return HICN_ERROR_NONE;
}
int
hicn_dpo_ip6_create (dpo_id_t * dpo,
const ip6_address_t * local_addr,
const ip6_address_t * remote_addr,
u32 sw_if,
adj_index_t adj,
u32 node_index,
hicn_face_flags_t flags, hicn_face_id_t * face_id)
{
/* If local matches the dpoi is a face */
hicn_face_t *face =
hicn_face_ip6_get (local_addr, sw_if, &hicn_face_ip_local_hashtb);
u8 hicnb_flags;
if (face != NULL)
return HICN_ERROR_FACE_ALREADY_CREATED;
face = hicn_face_ip6_get (remote_addr, sw_if, &hicn_face_ip_remote_hashtb);
/* If remote matches the dpoi is a iface */
if (face == NULL)
{
hicn_dpo_ip6_add_and_lock_from_remote (dpo, &hicnb_flags, local_addr,
remote_addr, sw_if, node_index);
*face_id = (hicn_face_id_t) dpo->dpoi_index;
face = hicn_dpoi_get_from_idx (*face_id);
}
else
{
*face_id = hicn_dpoi_get_index (face);
dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP6, *face_id);
dpo->dpoi_next_node = node_index;
}
hicn_face_ip_key_t key;
hicn_face_ip6_get_key (local_addr, sw_if, &key);
mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) face_id, 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;
return HICN_ERROR_NONE;
}
void
hicn_dpo_ip_create_from_face (hicn_face_t * face, dpo_id_t * dpo,
u16 dpoi_next_node)
{
hicn_face_id_t face_dpoi_id = hicn_dpoi_get_index (face);
hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data;
dpo_set (dpo, face->shared.face_type,
ip46_address_is_ip4 (&ip_face->local_addr) ? DPO_PROTO_IP4 :
DPO_PROTO_IP6, face_dpoi_id);
dpo->dpoi_next_node = dpoi_next_node;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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