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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 <lb/lb.h>
#include <vppinfra/byte_order.h>
#include <vlibapi/api.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vlibsocket/api.h>
#define vl_msg_id(n,h) n,
typedef enum {
#include <lb/lb.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 <lb/lb.api.h>
#undef vl_typedefs
/* define generated endian-swappers */
#define vl_endianfun
#include <lb/lb.api.h>
#undef vl_endianfun
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
/* Get the API version number */
#define vl_api_version(n,v) static u32 api_version=(v);
#include <lb/lb.api.h>
#undef vl_api_version
/* Macro to finish up custom dump fns */
#define FINISH \
vec_add1 (s, 0); \
vl_print (handle, (char *)s); \
vec_free (s); \
return handle;
/*
* A handy macro to set up a message reply.
* Assumes that the following variables are available:
* mp - pointer to request message
* rmp - pointer to reply message type
* rv - return value
*/
#define REPLY_MACRO(t) \
do { \
unix_shared_memory_queue_t * q = \
vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc (sizeof (*rmp)); \
rmp->_vl_msg_id = ntohs((t)+lbm->msg_id_base); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
\
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
static void
vl_api_lb_conf_t_handler
(vl_api_lb_conf_t * mp)
{
lb_main_t *lbm = &lb_main;
vl_api_lb_conf_reply_t * rmp;
int rv = 0;
rv = lb_conf((ip4_address_t *)&mp->ip4_src_address,
(ip6_address_t *)mp->ip6_src_address,
mp->sticky_buckets_per_core,
mp->flow_timeout);
REPLY_MACRO (VL_API_LB_CONF_REPLY);
}
static void *vl_api_lb_conf_t_print
(vl_api_lb_conf_t *mp, void * handle)
{
u8 * s;
s = format (0, "SCRIPT: lb_conf ");
s = format (s, "%U ", format_ip4_address, (ip4_address_t *)&mp->ip4_src_address);
s = format (s, "%U ", format_ip6_address, (ip6_address_t *)mp->ip6_src_address);
s = format (s, "%u ", mp->sticky_buckets_per_core);
s = format (s, "%u ", mp->flow_timeout);
FINISH;
}
static void
vl_api_lb_add_del_vip_t_handler
(vl_api_lb_add_del_vip_t * mp)
{
lb_main_t *lbm = &lb_main;
vl_api_lb_conf_reply_t * rmp;
int rv = 0;
ip46_address_t prefix;
memcpy(&prefix.ip6, mp->ip_prefix, sizeof(prefix.ip6));
if (mp->is_del) {
u32 vip_index;
if (!(rv = lb_vip_find_index(&prefix, mp->prefix_length, &vip_index)))
rv = lb_vip_del(vip_index);
} else {
u32 vip_index;
lb_vip_type_t type;
if (ip46_prefix_is_ip4(&prefix, mp->prefix_length)) {
type = mp->is_gre4?LB_VIP_TYPE_IP4_GRE4:LB_VIP_TYPE_IP4_GRE6;
} else {
type = mp->is_gre4?LB_VIP_TYPE_IP6_GRE4:LB_VIP_TYPE_IP6_GRE6;
}
rv = lb_vip_add(&prefix, mp->prefix_length, type,
mp->new_flows_table_length, &vip_index);
}
REPLY_MACRO (VL_API_LB_CONF_REPLY);
}
static void *vl_api_lb_add_del_vip_t_print
(vl_api_lb_add_del_vip_t *mp, void * handle)
{
u8 * s;
s = format (0, "SCRIPT: lb_add_del_vip ");
s = format (s, "%U ", format_ip46_prefix,
(ip46_address_t *)mp->ip_prefix, mp->prefix_length, IP46_TYPE_ANY);
s = format (s, "%s ", mp->is_gre4?"gre4":"gre6");
s = format (s, "%u ", mp->new_flows_table_length);
s = format (s, "%s ", mp->is_del?"del":"add");
FINISH;
}
static void
vl_api_lb_add_del_as_t_handler
(vl_api_lb_add_del_as_t * mp)
{
lb_main_t *lbm = &lb_main;
vl_api_lb_conf_reply_t * rmp;
int rv = 0;
u32 vip_index;
if ((rv = lb_vip_find_index((ip46_address_t *)mp->vip_ip_prefix,
mp->vip_prefix_length, &vip_index)))
goto done;
if (mp->is_del)
rv = lb_vip_del_ass(vip_index, (ip46_address_t *)mp->as_address, 1);
else
rv = lb_vip_add_ass(vip_index, (ip46_address_t *)mp->as_address, 1);
done:
REPLY_MACRO (VL_API_LB_CONF_REPLY);
}
static void *vl_api_lb_add_del_as_t_print
(vl_api_lb_add_del_as_t *mp, void * handle)
{
u8 * s;
s = format (0, "SCRIPT: lb_add_del_as ");
s = format (s, "%U ", format_ip46_prefix,
(ip46_address_t *)mp->vip_ip_prefix, mp->vip_prefix_length, IP46_TYPE_ANY);
s = format (s, "%U ", format_ip46_address,
(ip46_address_t *)mp->as_address, IP46_TYPE_ANY);
s = format (s, "%s ", mp->is_del?"del":"add");
FINISH;
}
/* List of message types that this plugin understands */
#define foreach_lb_plugin_api_msg \
_(LB_CONF, lb_conf) \
_(LB_ADD_DEL_VIP, lb_add_del_vip) \
_(LB_ADD_DEL_AS, lb_add_del_as)
static clib_error_t * lb_api_init (vlib_main_t * vm)
{
lb_main_t *lbm = &lb_main;
u8 *name = format (0, "lb_%08x%c", api_version, 0);
lbm->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 + lbm->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_lb_plugin_api_msg;
#undef _
return 0;
}
VLIB_INIT_FUNCTION (lb_api_init);
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