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/*
*------------------------------------------------------------------
* vxlan_api.c - vxlan api
*
* 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 <vnet/vnet.h>
#include <vlibmemory/api.h>
#include <vnet/interface.h>
#include <vnet/api_errno.h>
#include <vnet/feature/feature.h>
#include <vnet/vxlan/vxlan.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_vpe_api_msg \
_(SW_INTERFACE_SET_VXLAN_BYPASS, sw_interface_set_vxlan_bypass) \
_(VXLAN_ADD_DEL_TUNNEL, vxlan_add_del_tunnel) \
_(VXLAN_TUNNEL_DUMP, vxlan_tunnel_dump)
static void
vl_api_sw_interface_set_vxlan_bypass_t_handler
(vl_api_sw_interface_set_vxlan_bypass_t * mp)
{
vl_api_sw_interface_set_vxlan_bypass_reply_t *rmp;
int rv = 0;
u32 sw_if_index = ntohl (mp->sw_if_index);
VALIDATE_SW_IF_INDEX (mp);
vnet_int_vxlan_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_SW_INTERFACE_SET_VXLAN_BYPASS_REPLY);
}
static void vl_api_vxlan_add_del_tunnel_t_handler
(vl_api_vxlan_add_del_tunnel_t * mp)
{
vl_api_vxlan_add_del_tunnel_reply_t *rmp;
int rv = 0;
u32 fib_index;
fib_index = fib_table_find (fib_ip_proto (mp->is_ipv6),
ntohl (mp->encap_vrf_id));
if (fib_index == ~0)
{
rv = VNET_API_ERROR_NO_SUCH_FIB;
goto out;
}
vnet_vxlan_add_del_tunnel_args_t a = {
.is_add = mp->is_add,
.is_ip6 = mp->is_ipv6,
.mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
.encap_fib_index = fib_index,
.decap_next_index = ntohl (mp->decap_next_index),
.vni = ntohl (mp->vni),
.dst = to_ip46 (mp->is_ipv6, mp->dst_address),
.src = to_ip46 (mp->is_ipv6, mp->src_address),
};
/* Check src & dst are different */
if (ip46_address_cmp (&a.dst, &a.src) == 0)
{
rv = VNET_API_ERROR_SAME_SRC_DST;
goto out;
}
if (ip46_address_is_multicast (&a.dst) &&
!vnet_sw_if_index_is_api_valid (a.mcast_sw_if_index))
{
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
goto out;
}
u32 sw_if_index = ~0;
rv = vnet_vxlan_add_del_tunnel (&a, &sw_if_index);
out:
/* *INDENT-OFF* */
REPLY_MACRO2(VL_API_VXLAN_ADD_DEL_TUNNEL_REPLY,
({
rmp->sw_if_index = ntohl (sw_if_index);
}));
/* *INDENT-ON* */
}
static void send_vxlan_tunnel_details
(vxlan_tunnel_t * t, vl_api_registration_t * reg, u32 context)
{
vl_api_vxlan_tunnel_details_t *rmp;
ip4_main_t *im4 = &ip4_main;
ip6_main_t *im6 = &ip6_main;
u8 is_ipv6 = !ip46_address_is_ip4 (&t->dst);
rmp = vl_msg_api_alloc (sizeof (*rmp));
memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_VXLAN_TUNNEL_DETAILS);
if (is_ipv6)
{
memcpy (rmp->src_address, t->src.ip6.as_u8, 16);
memcpy (rmp->dst_address, t->dst.ip6.as_u8, 16);
rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id);
}
else
{
memcpy (rmp->src_address, t->src.ip4.as_u8, 4);
memcpy (rmp->dst_address, t->dst.ip4.as_u8, 4);
rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
}
rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
rmp->vni = htonl (t->vni);
rmp->decap_next_index = htonl (t->decap_next_index);
rmp->sw_if_index = htonl (t->sw_if_index);
rmp->is_ipv6 = is_ipv6;
rmp->context = context;
vl_api_send_msg (reg, (u8 *) rmp);
}
static void vl_api_vxlan_tunnel_dump_t_handler
(vl_api_vxlan_tunnel_dump_t * mp)
{
vl_api_registration_t *reg;
vxlan_main_t *vxm = &vxlan_main;
vxlan_tunnel_t *t;
u32 sw_if_index;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
sw_if_index = ntohl (mp->sw_if_index);
if (~0 == sw_if_index)
{
/* *INDENT-OFF* */
pool_foreach (t, vxm->tunnels,
({
send_vxlan_tunnel_details(t, reg, mp->context);
}));
/* *INDENT-ON* */
}
else
{
if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
(~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
{
return;
}
t = &vxm->tunnels[vxm->tunnel_index_by_sw_if_index[sw_if_index]];
send_vxlan_tunnel_details (t, reg, mp->context);
}
}
/*
* vpe_api_hookup
* Add vpe's API message handlers to the table.
* vlib has alread mapped shared memory and
* added the client registration handlers.
* See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
*/
#define vl_msg_name_crc_list
#include <vnet/vnet_all_api_h.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_vxlan;
#undef _
}
static clib_error_t *
vxlan_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_vpe_api_msg;
#undef _
am->api_trace_cfg[VL_API_VXLAN_ADD_DEL_TUNNEL].size += 16 * sizeof (u32);
/*
* Set up the (msg_name, crc, message-id) table
*/
setup_message_id_table (am);
return 0;
}
VLIB_API_INIT_FUNCTION (vxlan_api_hookup);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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