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/*
*------------------------------------------------------------------
* dslite_api.c - DS-Lite API
*
* Copyright (c) 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 <vnet/ip/ip_types_api.h>
#include <nat/dslite/dslite.h>
#include <nat/dslite/dslite.api_enum.h>
#include <nat/dslite/dslite.api_types.h>
#include <vnet/ip/ip.h>
#include <vnet/fib/fib_table.h>
#include <vlibmemory/api.h>
#define REPLY_MSG_ID_BASE dm->msg_id_base
#include <vlibapi/api_helper_macros.h>
static void
vl_api_dslite_set_aftr_addr_t_handler (vl_api_dslite_set_aftr_addr_t * mp)
{
vl_api_dslite_set_aftr_addr_reply_t *rmp;
dslite_main_t *dm = &dslite_main;
int rv = 0;
ip6_address_t ip6_addr;
ip4_address_t ip4_addr;
memcpy (&ip6_addr.as_u8, mp->ip6_addr, 16);
memcpy (&ip4_addr.as_u8, mp->ip4_addr, 4);
rv = dslite_set_aftr_ip6_addr (dm, &ip6_addr);
if (rv == 0)
rv = dslite_set_aftr_ip4_addr (dm, &ip4_addr);
REPLY_MACRO (VL_API_DSLITE_SET_AFTR_ADDR_REPLY);
}
static void
vl_api_dslite_get_aftr_addr_t_handler (vl_api_dslite_get_aftr_addr_t * mp)
{
vl_api_dslite_get_aftr_addr_reply_t *rmp;
dslite_main_t *dm = &dslite_main;
int rv = 0;
REPLY_MACRO2 (VL_API_DSLITE_GET_AFTR_ADDR_REPLY,
({
memcpy (rmp->ip4_addr, &dm->aftr_ip4_addr.as_u8, 4);
memcpy (rmp->ip6_addr, &dm->aftr_ip6_addr.as_u8, 16);
}))
}
static void
vl_api_dslite_set_b4_addr_t_handler (vl_api_dslite_set_b4_addr_t * mp)
{
vl_api_dslite_set_b4_addr_reply_t *rmp;
dslite_main_t *dm = &dslite_main;
int rv = 0;
ip6_address_t ip6_addr;
ip4_address_t ip4_addr;
memcpy (&ip6_addr.as_u8, mp->ip6_addr, 16);
memcpy (&ip4_addr.as_u8, mp->ip4_addr, 4);
rv = dslite_set_b4_ip6_addr (dm, &ip6_addr);
if (rv == 0)
rv = dslite_set_b4_ip4_addr (dm, &ip4_addr);
REPLY_MACRO (VL_API_DSLITE_SET_B4_ADDR_REPLY);
}
static void
vl_api_dslite_get_b4_addr_t_handler (vl_api_dslite_get_b4_addr_t * mp)
{
vl_api_dslite_get_b4_addr_reply_t *rmp;
dslite_main_t *dm = &dslite_main;
int rv = 0;
REPLY_MACRO2 (VL_API_DSLITE_GET_B4_ADDR_REPLY,
({
memcpy (rmp->ip4_addr, &dm->b4_ip4_addr.as_u8, 4);
memcpy (rmp->ip6_addr, &dm->b4_ip6_addr.as_u8, 16);
}))
}
static void
vl_api_dslite_add_del_pool_addr_range_t_handler
(vl_api_dslite_add_del_pool_addr_range_t * mp)
{
vl_api_dslite_add_del_pool_addr_range_reply_t *rmp;
dslite_main_t *dm = &dslite_main;
int rv = 0;
ip4_address_t this_addr;
u32 start_host_order, end_host_order;
int count;
u32 *tmp;
tmp = (u32 *) mp->start_addr;
start_host_order = clib_host_to_net_u32 (tmp[0]);
tmp = (u32 *) mp->end_addr;
end_host_order = clib_host_to_net_u32 (tmp[0]);
// TODO:
// end_host_order < start_host_order
count = (end_host_order - start_host_order) + 1;
memcpy (&this_addr.as_u8, mp->start_addr, 4);
rv = nat_add_del_ip4_pool_addrs (&dm->pool, this_addr, count, mp->is_add, 0);
REPLY_MACRO (VL_API_DSLITE_ADD_DEL_POOL_ADDR_RANGE_REPLY);
}
static void
send_dslite_address_details (nat_ip4_pool_addr_t * a,
vl_api_registration_t * reg, u32 context)
{
dslite_main_t *dm = &dslite_main;
vl_api_dslite_address_details_t *rmp;
rmp = vl_msg_api_alloc (sizeof (*rmp));
clib_memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_DSLITE_ADDRESS_DETAILS + dm->msg_id_base);
clib_memcpy (rmp->ip_address, &(a->addr), 4);
rmp->context = context;
vl_api_send_msg (reg, (u8 *) rmp);
}
static void
vl_api_dslite_address_dump_t_handler (vl_api_dslite_address_dump_t * mp)
{
vl_api_registration_t *reg;
dslite_main_t *dm = &dslite_main;
nat_ip4_pool_addr_t *a;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
vec_foreach (a, dm->pool.pool_addr)
{
send_dslite_address_details (a, reg, mp->context);
}
}
/* API definitions */
#include <vnet/format_fns.h>
#include <nat/dslite/dslite.api.c>
/* Set up the API message handling tables */
clib_error_t *
dslite_api_hookup (vlib_main_t * vm)
{
dslite_main_t *dm = &dslite_main;
dm->msg_id_base = setup_message_id_table ();
return 0;
}
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