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>
28 #include <vnet/ip/ip_types_api.h>
30 #include <vnet/vnet_msg_enum.h>
32 #define vl_typedefs /* define message structures */
33 #include <vnet/vnet_all_api_h.h>
36 #define vl_endianfun /* define message structures */
37 #include <vnet/vnet_all_api_h.h>
40 /* instantiate all the print functions we know about */
41 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
43 #include <vnet/vnet_all_api_h.h>
46 #include <vlibapi/api_helper_macros.h>
48 #define foreach_vpe_api_msg \
49 _(GRE_TUNNEL_ADD_DEL, gre_tunnel_add_del) \
50 _(GRE_TUNNEL_DUMP, gre_tunnel_dump)
53 gre_tunnel_type_decode (vl_api_gre_tunnel_type_t in, gre_tunnel_type_t * out)
58 case GRE_API_TUNNEL_TYPE_##n: \
59 *out = GRE_TUNNEL_TYPE_##n; \
61 foreach_gre_tunnel_type
65 return (VNET_API_ERROR_INVALID_VALUE);
68 static vl_api_gre_tunnel_type_t
69 gre_tunnel_type_encode (gre_tunnel_type_t in)
71 vl_api_gre_tunnel_type_t out = GRE_API_TUNNEL_TYPE_L3;
76 case GRE_TUNNEL_TYPE_##n: \
77 out = GRE_API_TUNNEL_TYPE_##n; \
79 foreach_gre_tunnel_type
87 gre_tunnel_mode_decode (vl_api_gre_tunnel_mode_t in, gre_tunnel_mode_t * out)
92 case GRE_API_TUNNEL_MODE_##n: \
93 *out = GRE_TUNNEL_MODE_##n; \
95 foreach_gre_tunnel_mode
99 return (VNET_API_ERROR_INVALID_VALUE_2);
102 static vl_api_gre_tunnel_mode_t
103 gre_tunnel_mode_encode (gre_tunnel_mode_t in)
105 vl_api_gre_tunnel_mode_t out = GRE_API_TUNNEL_MODE_P2P;
110 case GRE_TUNNEL_MODE_##n: \
111 out = GRE_API_TUNNEL_MODE_##n; \
113 foreach_gre_tunnel_mode
120 static void vl_api_gre_tunnel_add_del_t_handler
121 (vl_api_gre_tunnel_add_del_t * mp)
123 vnet_gre_tunnel_add_del_args_t _a = { }, *a = &_a;
124 vl_api_gre_tunnel_add_del_reply_t *rmp;
125 u32 sw_if_index = ~0;
126 ip46_type_t itype[2];
129 itype[0] = ip_address_decode (&mp->tunnel.src, &a->src);
130 itype[1] = ip_address_decode (&mp->tunnel.dst, &a->dst);
132 if (itype[0] != itype[1])
134 rv = VNET_API_ERROR_INVALID_PROTOCOL;
138 if (ip46_address_is_equal (&a->src, &a->dst))
140 rv = VNET_API_ERROR_SAME_SRC_DST;
144 rv = gre_tunnel_type_decode (mp->tunnel.type, &a->type);
149 rv = gre_tunnel_mode_decode (mp->tunnel.mode, &a->mode);
154 a->is_add = mp->is_add;
155 a->is_ipv6 = (itype[0] == IP46_TYPE_IP6);
156 a->instance = ntohl (mp->tunnel.instance);
157 a->session_id = ntohs (mp->tunnel.session_id);
158 a->outer_table_id = ntohl (mp->tunnel.outer_table_id);
160 rv = vnet_gre_tunnel_add_del (a, &sw_if_index);
164 REPLY_MACRO2(VL_API_GRE_TUNNEL_ADD_DEL_REPLY,
166 rmp->sw_if_index = ntohl (sw_if_index);
171 static void send_gre_tunnel_details
172 (gre_tunnel_t * t, vl_api_registration_t * reg, u32 context)
174 vl_api_gre_tunnel_details_t *rmp;
176 rmp = vl_msg_api_alloc (sizeof (*rmp));
177 clib_memset (rmp, 0, sizeof (*rmp));
178 rmp->_vl_msg_id = htons (VL_API_GRE_TUNNEL_DETAILS);
180 ip_address_encode (&t->tunnel_src, IP46_TYPE_ANY, &rmp->tunnel.src);
181 ip_address_encode (&t->tunnel_dst.fp_addr, IP46_TYPE_ANY, &rmp->tunnel.dst);
183 rmp->tunnel.outer_table_id =
184 htonl (fib_table_get_table_id
185 (t->outer_fib_index, t->tunnel_dst.fp_proto));
187 rmp->tunnel.type = gre_tunnel_type_encode (t->type);
188 rmp->tunnel.mode = gre_tunnel_mode_encode (t->mode);
189 rmp->tunnel.instance = htonl (t->user_instance);
190 rmp->tunnel.sw_if_index = htonl (t->sw_if_index);
191 rmp->tunnel.session_id = htons (t->session_id);
193 rmp->context = context;
195 vl_api_send_msg (reg, (u8 *) rmp);
199 vl_api_gre_tunnel_dump_t_handler (vl_api_gre_tunnel_dump_t * mp)
201 vl_api_registration_t *reg;
202 gre_main_t *gm = &gre_main;
206 reg = vl_api_client_index_to_registration (mp->client_index);
210 sw_if_index = ntohl (mp->sw_if_index);
212 if (~0 == sw_if_index)
215 pool_foreach (t, gm->tunnels,
217 send_gre_tunnel_details(t, reg, mp->context);
223 if ((sw_if_index >= vec_len (gm->tunnel_index_by_sw_if_index)) ||
224 (~0 == gm->tunnel_index_by_sw_if_index[sw_if_index]))
228 t = &gm->tunnels[gm->tunnel_index_by_sw_if_index[sw_if_index]];
229 send_gre_tunnel_details (t, reg, mp->context);
235 * Add vpe's API message handlers to the table.
236 * vlib has already mapped shared memory and
237 * added the client registration handlers.
238 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
240 #define vl_msg_name_crc_list
241 #include <vnet/vnet_all_api_h.h>
242 #undef vl_msg_name_crc_list
245 setup_message_id_table (api_main_t * am)
247 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
248 foreach_vl_msg_name_crc_gre;
252 static clib_error_t *
253 gre_api_hookup (vlib_main_t * vm)
255 api_main_t *am = vlibapi_get_main ();
258 vl_msg_api_set_handlers(VL_API_##N, #n, \
259 vl_api_##n##_t_handler, \
261 vl_api_##n##_t_endian, \
262 vl_api_##n##_t_print, \
263 sizeof(vl_api_##n##_t), 1);
268 * Set up the (msg_name, crc, message-id) table
270 setup_message_id_table (am);
275 VLIB_API_INIT_FUNCTION (gre_api_hookup);
278 * fd.io coding-style-patch-verification: ON
281 * eval: (c-set-style "gnu")