2 *------------------------------------------------------------------
3 * gtpu_api.c - gtpu api
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/interface.h>
21 #include <vnet/api_errno.h>
22 #include <vnet/feature/feature.h>
23 #include <vnet/fib/fib_table.h>
25 #include <vppinfra/byte_order.h>
26 #include <vlibmemory/api.h>
27 #include <vlibsocket/api.h>
29 #include <gtpu/gtpu.h>
32 #define vl_msg_id(n,h) n,
35 #include <gtpu/gtpu.api.h>
36 /* We'll want to know how many messages IDs we need... */
37 VL_MSG_FIRST_AVAILABLE,
41 /* define message structures */
43 #include <gtpu/gtpu.api.h>
46 /* define generated endian-swappers */
48 #include <gtpu/gtpu.api.h>
51 /* instantiate all the print functions we know about */
52 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
54 #include <gtpu/gtpu.api.h>
57 /* Get the API version number */
58 #define vl_api_version(n,v) static u32 api_version=(v);
59 #include <gtpu/gtpu.api.h>
62 #define vl_msg_name_crc_list
63 #include <gtpu/gtpu.api.h>
64 #undef vl_msg_name_crc_list
66 #define REPLY_MSG_ID_BASE gtm->msg_id_base
67 #include <vlibapi/api_helper_macros.h>
70 setup_message_id_table (gtpu_main_t * gtm, api_main_t * am)
73 vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + gtm->msg_id_base);
74 foreach_vl_msg_name_crc_gtpu;
78 #define foreach_gtpu_plugin_api_msg \
79 _(SW_INTERFACE_SET_GTPU_BYPASS, sw_interface_set_gtpu_bypass) \
80 _(GTPU_ADD_DEL_TUNNEL, gtpu_add_del_tunnel) \
81 _(GTPU_TUNNEL_DUMP, gtpu_tunnel_dump)
84 vl_api_sw_interface_set_gtpu_bypass_t_handler
85 (vl_api_sw_interface_set_gtpu_bypass_t * mp)
87 vl_api_sw_interface_set_gtpu_bypass_reply_t *rmp;
89 u32 sw_if_index = ntohl (mp->sw_if_index);
90 gtpu_main_t *gtm = >pu_main;
92 VALIDATE_SW_IF_INDEX (mp);
94 vnet_int_gtpu_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
95 BAD_SW_IF_INDEX_LABEL;
97 REPLY_MACRO (VL_API_SW_INTERFACE_SET_GTPU_BYPASS_REPLY);
100 static void vl_api_gtpu_add_del_tunnel_t_handler
101 (vl_api_gtpu_add_del_tunnel_t * mp)
103 vl_api_gtpu_add_del_tunnel_reply_t *rmp;
105 ip4_main_t *im = &ip4_main;
106 gtpu_main_t *gtm = >pu_main;
108 uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
111 rv = VNET_API_ERROR_NO_SUCH_FIB;
115 vnet_gtpu_add_del_tunnel_args_t a = {
116 .is_add = mp->is_add,
117 .is_ip6 = mp->is_ipv6,
118 .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
119 .encap_fib_index = p[0],
120 .decap_next_index = ntohl (mp->decap_next_index),
121 .teid = ntohl (mp->teid),
122 .dst = to_ip46 (mp->is_ipv6, mp->dst_address),
123 .src = to_ip46 (mp->is_ipv6, mp->src_address),
126 /* Check src & dst are different */
127 if (ip46_address_cmp (&a.dst, &a.src) == 0)
129 rv = VNET_API_ERROR_SAME_SRC_DST;
132 if (ip46_address_is_multicast (&a.dst) &&
133 !vnet_sw_if_index_is_api_valid (a.mcast_sw_if_index))
135 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
139 u32 sw_if_index = ~0;
140 rv = vnet_gtpu_add_del_tunnel (&a, &sw_if_index);
144 REPLY_MACRO2(VL_API_GTPU_ADD_DEL_TUNNEL_REPLY,
146 rmp->sw_if_index = ntohl (sw_if_index);
151 static void send_gtpu_tunnel_details
152 (gtpu_tunnel_t * t, unix_shared_memory_queue_t * q, u32 context)
154 vl_api_gtpu_tunnel_details_t *rmp;
155 ip4_main_t *im4 = &ip4_main;
156 ip6_main_t *im6 = &ip6_main;
157 u8 is_ipv6 = !ip46_address_is_ip4 (&t->dst);
159 rmp = vl_msg_api_alloc (sizeof (*rmp));
160 memset (rmp, 0, sizeof (*rmp));
161 rmp->_vl_msg_id = ntohs (VL_API_GTPU_TUNNEL_DETAILS);
164 memcpy (rmp->src_address, t->src.ip6.as_u8, 16);
165 memcpy (rmp->dst_address, t->dst.ip6.as_u8, 16);
166 rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id);
170 memcpy (rmp->src_address, t->src.ip4.as_u8, 4);
171 memcpy (rmp->dst_address, t->dst.ip4.as_u8, 4);
172 rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
174 rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
175 rmp->teid = htonl (t->teid);
176 rmp->decap_next_index = htonl (t->decap_next_index);
177 rmp->sw_if_index = htonl (t->sw_if_index);
178 rmp->is_ipv6 = is_ipv6;
179 rmp->context = context;
181 vl_msg_api_send_shmem (q, (u8 *) & rmp);
185 vl_api_gtpu_tunnel_dump_t_handler (vl_api_gtpu_tunnel_dump_t * mp)
187 unix_shared_memory_queue_t *q;
188 gtpu_main_t *gtm = >pu_main;
192 q = vl_api_client_index_to_input_queue (mp->client_index);
198 sw_if_index = ntohl (mp->sw_if_index);
200 if (~0 == sw_if_index)
203 pool_foreach (t, gtm->tunnels,
205 send_gtpu_tunnel_details(t, q, mp->context);
211 if ((sw_if_index >= vec_len (gtm->tunnel_index_by_sw_if_index)) ||
212 (~0 == gtm->tunnel_index_by_sw_if_index[sw_if_index]))
216 t = >m->tunnels[gtm->tunnel_index_by_sw_if_index[sw_if_index]];
217 send_gtpu_tunnel_details (t, q, mp->context);
222 static clib_error_t *
223 gtpu_api_hookup (vlib_main_t * vm)
225 gtpu_main_t *gtm = >pu_main;
227 u8 *name = format (0, "gtpu_%08x%c", api_version, 0);
228 gtm->msg_id_base = vl_msg_api_get_msg_ids
229 ((char *) name, VL_MSG_FIRST_AVAILABLE);
232 vl_msg_api_set_handlers((VL_API_##N + gtm->msg_id_base), \
234 vl_api_##n##_t_handler, \
236 vl_api_##n##_t_endian, \
237 vl_api_##n##_t_print, \
238 sizeof(vl_api_##n##_t), 1);
239 foreach_gtpu_plugin_api_msg;
242 /* Add our API messages to the global name_crc hash table */
243 setup_message_id_table (gtm, &api_main);
248 VLIB_API_INIT_FUNCTION (gtpu_api_hookup);
251 * fd.io coding-style-patch-verification: ON
254 * eval: (c-set-style "gnu")