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/*
*------------------------------------------------------------------
* Copyright (c) 2018 Intel, Travelping 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/interface.h>
#include <vnet/api_errno.h>
#include <vnet/feature/feature.h>
#include <vnet/fib/fib_table.h>
#include <vppinfra/byte_order.h>
#include <vlibmemory/api.h>
#include "dpi.h"
#define vl_msg_id(n,h) n,
typedef enum
{
#include "dpi.api.h"
/* We'll want to know how many messages IDs we need... */
VL_MSG_FIRST_AVAILABLE,
} vl_msg_id_t;
#undef vl_msg_id
/* define message structures */
#define vl_typedefs
#include "dpi.api.h"
#undef vl_typedefs
/* define generated endian-swappers */
#define vl_endianfun
#include "dpi.api.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 "dpi.api.h"
#undef vl_printfun
/* Get the API version number */
#define vl_api_version(n,v) static u32 api_version=(v);
#include "dpi.api.h"
#undef vl_api_version
#define vl_msg_name_crc_list
#include "dpi.api.h"
#undef vl_msg_name_crc_list
#define REPLY_MSG_ID_BASE dm->msg_id_base
#include <vlibapi/api_helper_macros.h>
static void
setup_message_id_table (dpi_main_t * dm, api_main_t * am)
{
#define _(id,n,crc) \
vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + dm->msg_id_base);
foreach_vl_msg_name_crc_dpi;
#undef _
}
#define foreach_dpi_plugin_api_msg \
_(DPI_FLOW_ADD_DEL, dpi_flow_add_del)
/* API message handler */
static void
vl_api_dpi_flow_add_del_t_handler (vl_api_dpi_flow_add_del_t * mp)
{
vl_api_dpi_flow_add_del_reply_t *rmp = NULL;
dpi_main_t *dm = &dpi_main;
int rv = 0;
u32 fib_index;
u32 flow_id = ~0;
fib_index = fib_table_find (fib_ip_proto (mp->is_ipv6), ntohl (mp->vrf_id));
if (fib_index == ~0)
{
rv = VNET_API_ERROR_NO_SUCH_FIB;
goto out;
}
dpi_add_del_flow_args_t a = {
.is_add = mp->is_add,
.is_ipv6 = mp->is_ipv6,
.src_ip = to_ip46 (mp->is_ipv6, mp->src_ip),
.dst_ip = to_ip46 (mp->is_ipv6, mp->dst_ip),
.src_port = ntohs (mp->src_port),
.dst_port = ntohs (mp->dst_port),
.protocol = mp->protocol,
.fib_index = fib_index,
};
/* Check src ip and dst ip are different */
if (ip46_address_cmp (&a.dst_ip, &a.src_ip) == 0)
{
rv = VNET_API_ERROR_SAME_SRC_DST;
goto out;
}
rv = dpi_flow_add_del (&a, &flow_id);
out:
/* *INDENT-OFF* */
REPLY_MACRO2(VL_API_DPI_FLOW_ADD_DEL_REPLY,
({
rmp->flow_id = htonl (flow_id);
}));
/* *INDENT-ON* */
}
static clib_error_t *
dpi_api_hookup (vlib_main_t * vm)
{
dpi_main_t *dm = &dpi_main;
u8 *name = format (0, "dpi_%08x%c", api_version, 0);
dm->msg_id_base = vl_msg_api_get_msg_ids
((char *) name, VL_MSG_FIRST_AVAILABLE);
#define _(N,n) \
vl_msg_api_set_handlers((VL_API_##N + dm->msg_id_base), \
#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_dpi_plugin_api_msg;
#undef _
/* Add our API messages to the global name_crc hash table */
setup_message_id_table (dm, &api_main);
return 0;
}
VLIB_API_INIT_FUNCTION (dpi_api_hookup);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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