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/*
* Copyright (c) 2016 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 <stddef.h>
#include <vnet/vnet.h>
#include <vnet/plugin/plugin.h>
#include <l3xc/l3xc.h>
#include <vnet/mpls/mpls_types.h>
#include <vnet/fib/fib_path_list.h>
#include <vnet/fib/fib_api.h>
#include <vpp/app/version.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
/* define message IDs */
#include <vnet/format_fns.h>
#include <l3xc/l3xc.api_enum.h>
#include <l3xc/l3xc.api_types.h>
/**
* Base message ID fot the plugin
*/
static u32 l3xc_base_msg_id;
#define REPLY_MSG_ID_BASE (l3xc_base_msg_id)
#include <vlibapi/api_helper_macros.h>
static void
vl_api_l3xc_plugin_get_version_t_handler (vl_api_l3xc_plugin_get_version_t *
mp)
{
vl_api_l3xc_plugin_get_version_reply_t *rmp;
vl_api_registration_t *rp;
rp = vl_api_client_index_to_registration (mp->client_index);
if (rp == 0)
return;
rmp = vl_msg_api_alloc (sizeof (*rmp));
rmp->_vl_msg_id =
ntohs (VL_API_L3XC_PLUGIN_GET_VERSION_REPLY + l3xc_base_msg_id);
rmp->context = mp->context;
rmp->major = htonl (L3XC_PLUGIN_VERSION_MAJOR);
rmp->minor = htonl (L3XC_PLUGIN_VERSION_MINOR);
vl_api_send_msg (rp, (u8 *) rmp);
}
static void
vl_api_l3xc_update_t_handler (vl_api_l3xc_update_t * mp)
{
vl_api_l3xc_update_reply_t *rmp;
fib_route_path_t *paths = NULL, *path;
int rv = 0;
u8 pi;
VALIDATE_SW_IF_INDEX (&mp->l3xc);
if (0 == mp->l3xc.n_paths)
{
rv = VNET_API_ERROR_INVALID_VALUE;
goto done;
}
vec_validate (paths, mp->l3xc.n_paths - 1);
for (pi = 0; pi < mp->l3xc.n_paths; pi++)
{
path = &paths[pi];
rv = fib_api_path_decode (&mp->l3xc.paths[pi], path);
if (0 != rv)
{
goto done;
}
}
rv = l3xc_update (ntohl (mp->l3xc.sw_if_index), mp->l3xc.is_ip6, paths);
done:
vec_free (paths);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO2 (VL_API_L3XC_UPDATE_REPLY, ({ rmp->stats_index = 0; }))
}
static void
vl_api_l3xc_del_t_handler (vl_api_l3xc_del_t * mp)
{
vl_api_l3xc_del_reply_t *rmp;
int rv = 0;
VALIDATE_SW_IF_INDEX (mp);
rv = l3xc_delete (ntohl (mp->sw_if_index), mp->is_ip6);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_L3XC_DEL_REPLY);
}
typedef struct l3xc_dump_walk_ctx_t_
{
vl_api_registration_t *rp;
u32 context;
} l3xc_dump_walk_ctx_t;
static int
l3xc_send_details (u32 l3xci, void *args)
{
fib_path_encode_ctx_t path_ctx = {
.rpaths = NULL,
};
vl_api_l3xc_details_t *mp;
l3xc_dump_walk_ctx_t *ctx;
fib_route_path_t *rpath;
vl_api_fib_path_t *fp;
size_t msg_size;
l3xc_t *l3xc;
u8 n_paths;
ctx = args;
l3xc = l3xc_get (l3xci);
n_paths = fib_path_list_get_n_paths (l3xc->l3xc_pl);
msg_size = sizeof (*mp) + sizeof (mp->l3xc.paths[0]) * n_paths;
mp = vl_msg_api_alloc (msg_size);
clib_memset (mp, 0, msg_size);
mp->_vl_msg_id = ntohs (VL_API_L3XC_DETAILS + l3xc_base_msg_id);
/* fill in the message */
mp->context = ctx->context;
mp->l3xc.n_paths = n_paths;
mp->l3xc.sw_if_index = htonl (l3xc->l3xc_sw_if_index);
fib_path_list_walk_w_ext (l3xc->l3xc_pl, NULL, fib_path_encode, &path_ctx);
fp = mp->l3xc.paths;
vec_foreach (rpath, path_ctx.rpaths)
{
fib_api_path_encode (rpath, fp);
fp++;
}
vl_api_send_msg (ctx->rp, (u8 *) mp);
return (1);
}
static void
vl_api_l3xc_dump_t_handler (vl_api_l3xc_dump_t * mp)
{
vl_api_registration_t *rp;
u32 sw_if_index;
rp = vl_api_client_index_to_registration (mp->client_index);
if (rp == 0)
return;
l3xc_dump_walk_ctx_t ctx = {
.rp = rp,
.context = mp->context,
};
sw_if_index = ntohl (mp->sw_if_index);
if (~0 == sw_if_index)
l3xc_walk (l3xc_send_details, &ctx);
else
{
fib_protocol_t fproto;
index_t l3xci;
FOR_EACH_FIB_IP_PROTOCOL (fproto)
{
l3xci = l3xc_find (sw_if_index, fproto);
if (INDEX_INVALID != l3xci)
l3xc_send_details (l3xci, &ctx);
}
}
}
#include <l3xc/l3xc.api.c>
static clib_error_t *
l3xc_api_init (vlib_main_t * vm)
{
/* Ask for a correctly-sized block of API message decode slots */
l3xc_base_msg_id = setup_message_id_table ();
return 0;
}
VLIB_INIT_FUNCTION (l3xc_api_init);
VLIB_PLUGIN_REGISTER () = {
.version = VPP_BUILD_VER,
.description = "L3 Cross-Connect (L3XC)",
};
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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