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/*
* ipip_api.c - ipip api
*
* Copyright (c) 2018 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 <vlibmemory/api.h>
#include <vnet/api_errno.h>
#include <vnet/fib/fib_table.h>
#include <vnet/interface.h>
#include <vnet/ipip/ipip.h>
#include <vnet/vnet.h>
#include <vnet/ip/ip_types_api.h>
#include <vnet/tunnel/tunnel_types_api.h>
#include <vnet/ipip/ipip.api_enum.h>
#include <vnet/ipip/ipip.api_types.h>
#define REPLY_MSG_ID_BASE im->msg_id_base
#include <vlibapi/api_helper_macros.h>
static void
vl_api_ipip_add_tunnel_t_handler (vl_api_ipip_add_tunnel_t * mp)
{
ipip_main_t *im = &ipip_main;
vl_api_ipip_add_tunnel_reply_t *rmp;
int rv = 0;
u32 fib_index, sw_if_index = ~0;
tunnel_encap_decap_flags_t flags;
ip46_address_t src, dst;
ip46_type_t itype[2];
tunnel_mode_t mode;
itype[0] = ip_address_decode (&mp->tunnel.src, &src);
itype[1] = ip_address_decode (&mp->tunnel.dst, &dst);
if (itype[0] != itype[1])
{
rv = VNET_API_ERROR_INVALID_PROTOCOL;
goto out;
}
if (ip46_address_is_equal (&src, &dst))
{
rv = VNET_API_ERROR_SAME_SRC_DST;
goto out;
}
rv = tunnel_encap_decap_flags_decode (mp->tunnel.flags, &flags);
if (rv)
goto out;
rv = tunnel_mode_decode (mp->tunnel.mode, &mode);
if (rv)
goto out;
fib_index = fib_table_find (fib_proto_from_ip46 (itype[0]),
ntohl (mp->tunnel.table_id));
if (~0 == fib_index)
{
rv = VNET_API_ERROR_NO_SUCH_FIB;
}
else
{
rv = ipip_add_tunnel ((itype[0] == IP46_TYPE_IP6 ?
IPIP_TRANSPORT_IP6 :
IPIP_TRANSPORT_IP4),
ntohl (mp->tunnel.instance), &src, &dst,
fib_index, flags,
ip_dscp_decode (mp->tunnel.dscp), mode,
&sw_if_index);
}
out:
REPLY_MACRO2(VL_API_IPIP_ADD_TUNNEL_REPLY,
({
rmp->sw_if_index = ntohl(sw_if_index);
}));
}
static void
vl_api_ipip_del_tunnel_t_handler (vl_api_ipip_del_tunnel_t * mp)
{
ipip_main_t *im = &ipip_main;
vl_api_ipip_del_tunnel_reply_t *rmp;
int rv = ipip_del_tunnel (ntohl (mp->sw_if_index));
REPLY_MACRO (VL_API_IPIP_DEL_TUNNEL_REPLY);
}
static vl_api_tunnel_mode_t
ipip_tunnel_mode_encode (ipip_mode_t mode)
{
switch (mode)
{
case IPIP_MODE_P2P:
return TUNNEL_API_MODE_P2P;
case IPIP_MODE_P2MP:
return TUNNEL_API_MODE_MP;
case IPIP_MODE_6RD:
return TUNNEL_API_MODE_P2P;
default:
return TUNNEL_API_MODE_P2P;
}
}
static void
send_ipip_tunnel_details (ipip_tunnel_t * t, vl_api_ipip_tunnel_dump_t * mp)
{
ipip_main_t *im = &ipip_main;
vl_api_ipip_tunnel_details_t *rmp;
bool is_ipv6 = t->transport == IPIP_TRANSPORT_IP6 ? true : false;
ip46_type_t ip_type = is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4;
fib_table_t *ft;
ft = fib_table_get (t->fib_index,
(is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4));
REPLY_MACRO_DETAILS2 (
VL_API_IPIP_TUNNEL_DETAILS, ({
ip_address_encode (&t->tunnel_src, ip_type, &rmp->tunnel.src);
ip_address_encode (&t->tunnel_dst, ip_type, &rmp->tunnel.dst);
rmp->tunnel.table_id = htonl (ft->ft_table_id);
rmp->tunnel.instance = htonl (t->user_instance);
rmp->tunnel.sw_if_index = htonl (t->sw_if_index);
rmp->tunnel.dscp = ip_dscp_encode (t->dscp);
rmp->tunnel.flags = tunnel_encap_decap_flags_encode (t->flags);
rmp->tunnel.mode = ipip_tunnel_mode_encode (t->mode);
}));
}
static void
vl_api_ipip_tunnel_dump_t_handler (vl_api_ipip_tunnel_dump_t * mp)
{
ipip_main_t *im = &ipip_main;
ipip_tunnel_t *t;
u32 sw_if_index;
sw_if_index = ntohl (mp->sw_if_index);
if (sw_if_index == ~0)
{
pool_foreach (t, im->tunnels)
{
send_ipip_tunnel_details(t, mp);
}
}
else
{
t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
if (t)
send_ipip_tunnel_details (t, mp);
}
}
static void
vl_api_ipip_6rd_add_tunnel_t_handler (vl_api_ipip_6rd_add_tunnel_t * mp)
{
ipip_main_t *im = &ipip_main;
vl_api_ipip_6rd_add_tunnel_reply_t *rmp;
u32 sixrd_tunnel_index, ip4_fib_index, ip6_fib_index;
int rv;
sixrd_tunnel_index = ~0;
ip4_fib_index = fib_table_find (FIB_PROTOCOL_IP4, ntohl (mp->ip4_table_id));
ip6_fib_index = fib_table_find (FIB_PROTOCOL_IP6, ntohl (mp->ip6_table_id));
if (~0 == ip4_fib_index || ~0 == ip6_fib_index)
{
rv = VNET_API_ERROR_NO_SUCH_FIB;
}
else
{
rv = sixrd_add_tunnel ((ip6_address_t *) & mp->ip6_prefix.address,
mp->ip6_prefix.len,
(ip4_address_t *) & mp->ip4_prefix.address,
mp->ip4_prefix.len,
(ip4_address_t *) & mp->ip4_src,
mp->security_check,
ip4_fib_index, ip6_fib_index,
&sixrd_tunnel_index);
}
REPLY_MACRO2 (VL_API_IPIP_6RD_ADD_TUNNEL_REPLY,
({
rmp->sw_if_index = htonl (sixrd_tunnel_index);
}));
}
static void
vl_api_ipip_6rd_del_tunnel_t_handler (vl_api_ipip_6rd_del_tunnel_t * mp)
{
ipip_main_t *im = &ipip_main;
vl_api_ipip_6rd_del_tunnel_reply_t *rmp;
int rv = sixrd_del_tunnel (ntohl (mp->sw_if_index));
REPLY_MACRO (VL_API_IPIP_6RD_DEL_TUNNEL_REPLY);
}
/*
* ipip_api_hookup
* Add vpe's API message handlers to the table.
* vlib has already mapped shared memory and
* added the client registration handlers.
* See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
*/
/* API definitions */
#include <vnet/format_fns.h>
#include <vnet/ipip/ipip.api.c>
static clib_error_t *
ipip_api_hookup (vlib_main_t * vm)
{
ipip_main_t *im = &ipip_main;
/*
* Set up the (msg_name, crc, message-id) table
*/
im->msg_id_base = setup_message_id_table ();
return 0;
}
VLIB_API_INIT_FUNCTION (ipip_api_hookup);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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