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/*
* Copyright (c) 2017 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/vnet.h>
#include <vlibmemory/api.h>
#include <vnet/udp/udp_encap.h>
#include <vnet/fib/fib_table.h>
#include <vnet/vnet_msg_enum.h>
#define vl_typedefs /* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_typedefs
#define vl_endianfun /* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_endianfun
/* instantiate all the print functions we know about */
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
#define vl_printfun
#include <vnet/vnet_all_api_h.h>
#undef vl_printfun
#include <vlibapi/api_helper_macros.h>
#define foreach_udp_api_msg \
_(UDP_ENCAP_ADD_DEL, udp_encap_add_del) \
_(UDP_ENCAP_DUMP, udp_encap_dump)
static void
send_udp_encap_details (const udp_encap_t * ue, svm_queue_t * q, u32 context)
{
vl_api_udp_encap_details_t *mp;
fib_table_t *fib_table;
mp = vl_msg_api_alloc (sizeof (*mp));
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_UDP_ENCAP_DETAILS);
mp->context = context;
mp->is_ip6 = (ue->ue_ip_proto == FIB_PROTOCOL_IP6);
if (FIB_PROTOCOL_IP4 == ue->ue_ip_proto)
{
clib_memcpy (mp->src_ip, &ue->ue_hdrs.ip4.ue_ip4.src_address, 4);
clib_memcpy (mp->dst_ip, &ue->ue_hdrs.ip4.ue_ip4.dst_address, 4);
mp->src_port = htons (ue->ue_hdrs.ip4.ue_udp.src_port);
mp->dst_port = htons (ue->ue_hdrs.ip4.ue_udp.dst_port);
}
else
{
clib_memcpy (mp->src_ip, &ue->ue_hdrs.ip6.ue_ip6.src_address, 16);
clib_memcpy (mp->dst_ip, &ue->ue_hdrs.ip6.ue_ip6.dst_address, 16);
mp->src_port = htons (ue->ue_hdrs.ip6.ue_udp.src_port);
mp->dst_port = htons (ue->ue_hdrs.ip6.ue_udp.dst_port);
}
fib_table = fib_table_get (ue->ue_fib_index, ue->ue_ip_proto);
mp->table_id = htonl (fib_table->ft_table_id);
mp->id = htonl (ue->ue_id);
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
static void
vl_api_udp_encap_dump_t_handler (vl_api_udp_encap_dump_t * mp,
vlib_main_t * vm)
{
svm_queue_t *q;
udp_encap_t *ue;
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
return;
/* *INDENT-OFF* */
pool_foreach(ue, udp_encap_pool,
({
send_udp_encap_details(ue, q, mp->context);
}));
/* *INDENT-ON* */
}
static void
vl_api_udp_encap_add_del_t_handler (vl_api_udp_encap_add_del_t * mp,
vlib_main_t * vm)
{
vl_api_udp_encap_add_del_reply_t *rmp;
ip46_address_t src_ip, dst_ip;
u32 fib_index, table_id, ue_id;
fib_protocol_t fproto;
int rv = 0;
ue_id = ntohl (mp->id);
table_id = ntohl (mp->table_id);
fproto = (mp->is_ip6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4);
fib_index = fib_table_find (fproto, table_id);
if (~0 == fib_index)
{
rv = VNET_API_ERROR_NO_SUCH_TABLE;
goto done;
}
if (FIB_PROTOCOL_IP4 == fproto)
{
clib_memcpy (&src_ip.ip4, mp->src_ip, 4);
clib_memcpy (&dst_ip.ip4, mp->dst_ip, 4);
}
else
{
clib_memcpy (&src_ip.ip6, mp->src_ip, 16);
clib_memcpy (&dst_ip.ip6, mp->dst_ip, 16);
}
if (mp->is_add)
{
udp_encap_add_and_lock (ue_id, fproto, fib_index,
&src_ip, &dst_ip,
ntohs (mp->src_port),
ntohs (mp->dst_port), UDP_ENCAP_FIXUP_NONE);
}
else
{
udp_encap_unlock (ue_id);
}
done:
REPLY_MACRO (VL_API_UDP_ENCAP_ADD_DEL_REPLY);
}
#define vl_msg_name_crc_list
#include <vnet/udp/udp.api.h>
#undef vl_msg_name_crc_list
static void
setup_message_id_table (api_main_t * am)
{
#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
foreach_vl_msg_name_crc_udp;
#undef _
}
static clib_error_t *
udp_api_hookup (vlib_main_t * vm)
{
api_main_t *am = &api_main;
#define _(N,n) \
vl_msg_api_set_handlers(VL_API_##N, #n, \
vl_api_##n##_t_handler, \
vl_noop_handler, \
vl_api_##n##_t_endian, \
vl_api_##n##_t_print, \
sizeof(vl_api_##n##_t), 1);
foreach_udp_api_msg;
#undef _
/*
* Set up the (msg_name, crc, message-id) table
*/
setup_message_id_table (am);
return 0;
}
VLIB_API_INIT_FUNCTION (udp_api_hookup);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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