2 *------------------------------------------------------------------
5 * Copyright (c) 2016 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
20 #include <vnet/vnet.h>
21 #include <vlibmemory/api.h>
23 #include <vnet/interface.h>
24 #include <vnet/api_errno.h>
26 #include <vnet/gre/gre.h>
27 #include <vnet/fib/fib_table.h>
29 #include <vnet/vnet_msg_enum.h>
31 #define vl_typedefs /* define message structures */
32 #include <vnet/vnet_all_api_h.h>
35 #define vl_endianfun /* define message structures */
36 #include <vnet/vnet_all_api_h.h>
39 /* instantiate all the print functions we know about */
40 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
42 #include <vnet/vnet_all_api_h.h>
45 #include <vlibapi/api_helper_macros.h>
47 #define foreach_vpe_api_msg \
48 _(GRE_ADD_DEL_TUNNEL, gre_add_del_tunnel) \
49 _(GRE_TUNNEL_DUMP, gre_tunnel_dump)
51 static void vl_api_gre_add_del_tunnel_t_handler
52 (vl_api_gre_add_del_tunnel_t * mp)
54 vl_api_gre_add_del_tunnel_reply_t *rmp;
56 vnet_gre_add_del_tunnel_args_t _a, *a = &_a;
61 p = fib_table_find (!mp->is_ipv6 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6,
62 ntohl (mp->outer_fib_id));
65 rv = VNET_API_ERROR_NO_SUCH_FIB;
70 /* Check src & dst are different */
71 if ((mp->is_ipv6 && memcmp (mp->src_address, mp->dst_address, 16) == 0) ||
72 (!mp->is_ipv6 && memcmp (mp->src_address, mp->dst_address, 4) == 0))
74 rv = VNET_API_ERROR_SAME_SRC_DST;
77 memset (a, 0, sizeof (*a));
79 a->is_add = mp->is_add;
81 a->is_ipv6 = mp->is_ipv6;
83 /* ip addresses sent in network byte order */
86 clib_memcpy (&(a->src.ip4), mp->src_address, 4);
87 clib_memcpy (&(a->dst.ip4), mp->dst_address, 4);
91 clib_memcpy (&(a->src.ip6), mp->src_address, 16);
92 clib_memcpy (&(a->dst.ip6), mp->dst_address, 16);
95 a->outer_fib_id = outer_fib_id;
96 rv = vnet_gre_add_del_tunnel (a, &sw_if_index);
100 REPLY_MACRO2(VL_API_GRE_ADD_DEL_TUNNEL_REPLY,
102 rmp->sw_if_index = ntohl (sw_if_index);
107 static void send_gre_tunnel_details
108 (gre_tunnel_t * t, unix_shared_memory_queue_t * q, u32 context)
110 vl_api_gre_tunnel_details_t *rmp;
111 u8 is_ipv6 = t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6 ? 1 : 0;
114 rmp = vl_msg_api_alloc (sizeof (*rmp));
115 memset (rmp, 0, sizeof (*rmp));
116 rmp->_vl_msg_id = ntohs (VL_API_GRE_TUNNEL_DETAILS);
119 clib_memcpy (rmp->src_address, &(t->tunnel_src.ip4.as_u8), 4);
120 clib_memcpy (rmp->dst_address, &(t->tunnel_dst.fp_addr.ip4.as_u8), 4);
121 ft = fib_table_get (t->outer_fib_index, FIB_PROTOCOL_IP4);
122 rmp->outer_fib_id = ft->ft_table_id;
126 clib_memcpy (rmp->src_address, &(t->tunnel_src.ip6.as_u8), 16);
127 clib_memcpy (rmp->dst_address, &(t->tunnel_dst.fp_addr.ip6.as_u8), 16);
128 ft = fib_table_get (t->outer_fib_index, FIB_PROTOCOL_IP6);
129 rmp->outer_fib_id = ft->ft_table_id;
131 rmp->teb = (GRE_TUNNEL_TYPE_TEB == t->type);
132 rmp->sw_if_index = htonl (t->sw_if_index);
133 rmp->context = context;
134 rmp->is_ipv6 = is_ipv6;
136 vl_msg_api_send_shmem (q, (u8 *) & rmp);
140 vl_api_gre_tunnel_dump_t_handler (vl_api_gre_tunnel_dump_t * mp)
142 unix_shared_memory_queue_t *q;
143 gre_main_t *gm = &gre_main;
147 q = vl_api_client_index_to_input_queue (mp->client_index);
153 sw_if_index = ntohl (mp->sw_if_index);
155 if (~0 == sw_if_index)
158 pool_foreach (t, gm->tunnels,
160 send_gre_tunnel_details(t, q, mp->context);
166 if ((sw_if_index >= vec_len (gm->tunnel_index_by_sw_if_index)) ||
167 (~0 == gm->tunnel_index_by_sw_if_index[sw_if_index]))
171 t = &gm->tunnels[gm->tunnel_index_by_sw_if_index[sw_if_index]];
172 send_gre_tunnel_details (t, q, mp->context);
178 * Add vpe's API message handlers to the table.
179 * vlib has alread mapped shared memory and
180 * added the client registration handlers.
181 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
183 #define vl_msg_name_crc_list
184 #include <vnet/vnet_all_api_h.h>
185 #undef vl_msg_name_crc_list
188 setup_message_id_table (api_main_t * am)
190 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
191 foreach_vl_msg_name_crc_gre;
195 static clib_error_t *
196 gre_api_hookup (vlib_main_t * vm)
198 api_main_t *am = &api_main;
201 vl_msg_api_set_handlers(VL_API_##N, #n, \
202 vl_api_##n##_t_handler, \
204 vl_api_##n##_t_endian, \
205 vl_api_##n##_t_print, \
206 sizeof(vl_api_##n##_t), 1);
211 * Set up the (msg_name, crc, message-id) table
213 setup_message_id_table (am);
218 VLIB_API_INIT_FUNCTION (gre_api_hookup);
221 * fd.io coding-style-patch-verification: ON
224 * eval: (c-set-style "gnu")