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/*
* Copyright (c) 2020 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 <vlibmemory/api.h>
#include <nat/nat66/nat66.h>
#include <nat/nat66/nat66.api_enum.h>
#include <nat/nat66/nat66.api_types.h>
#include <vnet/fib/fib_table.h>
#define REPLY_MSG_ID_BASE nm->msg_id_base
#include <vlibapi/api_helper_macros.h>
/*************/
/*** NAT66 ***/
/*************/
static void
vl_api_nat66_add_del_interface_t_handler (vl_api_nat66_add_del_interface_t *
mp)
{
nat66_main_t *nm = &nat66_main;
vl_api_nat66_add_del_interface_reply_t *rmp;
int rv = 0;
VALIDATE_SW_IF_INDEX (mp);
rv =
nat66_interface_add_del (ntohl (mp->sw_if_index),
mp->flags & NAT_IS_INSIDE, mp->is_add);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_NAT66_ADD_DEL_INTERFACE_REPLY);
}
static void
vl_api_nat66_add_del_static_mapping_t_handler
(vl_api_nat66_add_del_static_mapping_t * mp)
{
nat66_main_t *nm = &nat66_main;
vl_api_nat66_add_del_static_mapping_reply_t *rmp;
ip6_address_t l_addr, e_addr;
int rv = 0;
memcpy (&l_addr.as_u8, mp->local_ip_address, 16);
memcpy (&e_addr.as_u8, mp->external_ip_address, 16);
rv =
nat66_static_mapping_add_del (&l_addr, &e_addr,
clib_net_to_host_u32 (mp->vrf_id),
mp->is_add);
REPLY_MACRO (VL_API_NAT66_ADD_DEL_STATIC_MAPPING_REPLY);
}
typedef struct nat66_api_walk_ctx_t_
{
vl_api_registration_t *rp;
u32 context;
} nat66_api_walk_ctx_t;
static int
nat66_api_interface_walk (nat66_interface_t * i, void *arg)
{
vl_api_nat66_interface_details_t *rmp;
nat66_main_t *nm = &nat66_main;
nat66_api_walk_ctx_t *ctx = arg;
rmp = vl_msg_api_alloc (sizeof (*rmp));
clib_memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_NAT66_INTERFACE_DETAILS + nm->msg_id_base);
rmp->sw_if_index = ntohl (i->sw_if_index);
if (nat66_interface_is_inside (i))
rmp->flags |= NAT_IS_INSIDE;
rmp->context = ctx->context;
vl_api_send_msg (ctx->rp, (u8 *) rmp);
return 0;
}
static void
vl_api_nat66_interface_dump_t_handler (vl_api_nat66_interface_dump_t * mp)
{
vl_api_registration_t *rp;
rp = vl_api_client_index_to_registration (mp->client_index);
if (rp == 0)
return;
nat66_api_walk_ctx_t ctx = {
.rp = rp,
.context = mp->context,
};
nat66_interfaces_walk (nat66_api_interface_walk, &ctx);
}
static int
nat66_api_static_mapping_walk (nat66_static_mapping_t * m, void *arg)
{
vl_api_nat66_static_mapping_details_t *rmp;
nat66_main_t *nm = &nat66_main;
nat66_api_walk_ctx_t *ctx = arg;
fib_table_t *fib;
vlib_counter_t vc;
fib = fib_table_get (m->fib_index, FIB_PROTOCOL_IP6);
if (!fib)
return -1;
vlib_get_combined_counter (&nm->session_counters, m - nm->sm, &vc);
rmp = vl_msg_api_alloc (sizeof (*rmp));
clib_memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id =
ntohs (VL_API_NAT66_STATIC_MAPPING_DETAILS + nm->msg_id_base);
clib_memcpy (rmp->local_ip_address, &m->l_addr, 16);
clib_memcpy (rmp->external_ip_address, &m->e_addr, 16);
rmp->vrf_id = ntohl (fib->ft_table_id);
rmp->total_bytes = clib_host_to_net_u64 (vc.bytes);
rmp->total_pkts = clib_host_to_net_u64 (vc.packets);
rmp->context = ctx->context;
vl_api_send_msg (ctx->rp, (u8 *) rmp);
return 0;
}
static void
vl_api_nat66_static_mapping_dump_t_handler (vl_api_nat66_static_mapping_dump_t
* mp)
{
vl_api_registration_t *rp;
rp = vl_api_client_index_to_registration (mp->client_index);
if (rp == 0)
return;
nat66_api_walk_ctx_t ctx = {
.rp = rp,
.context = mp->context,
};
nat66_static_mappings_walk (nat66_api_static_mapping_walk, &ctx);
}
/* API definitions */
#include <vnet/format_fns.h>
#include <nat/nat66/nat66.api.c>
/* Set up the API message handling tables */
clib_error_t *
nat66_plugin_api_hookup (vlib_main_t * vm)
{
nat66_main_t *nm = &nat66_main;
nm->msg_id_base = setup_message_id_table ();
return 0;
}
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