2 *------------------------------------------------------------------
3 * gtpu_api.c - gtpu api
5 * Copyright (c) 2017 Intel 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>
28 #include <gtpu/gtpu.h>
31 #define vl_msg_id(n,h) n,
34 #include <gtpu/gtpu.api.h>
35 /* We'll want to know how many messages IDs we need... */
36 VL_MSG_FIRST_AVAILABLE,
40 /* define message structures */
42 #include <gtpu/gtpu.api.h>
45 /* define generated endian-swappers */
47 #include <gtpu/gtpu.api.h>
50 /* instantiate all the print functions we know about */
51 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
53 #include <gtpu/gtpu.api.h>
56 /* Get the API version number */
57 #define vl_api_version(n,v) static u32 api_version=(v);
58 #include <gtpu/gtpu.api.h>
61 #define vl_msg_name_crc_list
62 #include <gtpu/gtpu.api.h>
63 #undef vl_msg_name_crc_list
65 #define REPLY_MSG_ID_BASE gtm->msg_id_base
66 #include <vlibapi/api_helper_macros.h>
69 setup_message_id_table (gtpu_main_t * gtm, api_main_t * am)
72 vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + gtm->msg_id_base);
73 foreach_vl_msg_name_crc_gtpu;
77 #define foreach_gtpu_plugin_api_msg \
78 _(SW_INTERFACE_SET_GTPU_BYPASS, sw_interface_set_gtpu_bypass) \
79 _(GTPU_ADD_DEL_TUNNEL, gtpu_add_del_tunnel) \
80 _(GTPU_TUNNEL_DUMP, gtpu_tunnel_dump)
83 vl_api_sw_interface_set_gtpu_bypass_t_handler
84 (vl_api_sw_interface_set_gtpu_bypass_t * mp)
86 vl_api_sw_interface_set_gtpu_bypass_reply_t *rmp;
88 u32 sw_if_index = ntohl (mp->sw_if_index);
89 gtpu_main_t *gtm = >pu_main;
91 VALIDATE_SW_IF_INDEX (mp);
93 vnet_int_gtpu_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
94 BAD_SW_IF_INDEX_LABEL;
96 REPLY_MACRO (VL_API_SW_INTERFACE_SET_GTPU_BYPASS_REPLY);
99 static void vl_api_gtpu_add_del_tunnel_t_handler
100 (vl_api_gtpu_add_del_tunnel_t * mp)
102 vl_api_gtpu_add_del_tunnel_reply_t *rmp;
104 ip4_main_t *im = &ip4_main;
105 gtpu_main_t *gtm = >pu_main;
107 uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
110 rv = VNET_API_ERROR_NO_SUCH_FIB;
114 vnet_gtpu_add_del_tunnel_args_t a = {
115 .is_add = mp->is_add,
116 .is_ip6 = mp->is_ipv6,
117 .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
118 .encap_fib_index = p[0],
119 .decap_next_index = ntohl (mp->decap_next_index),
120 .teid = ntohl (mp->teid),
121 .dst = to_ip46 (mp->is_ipv6, mp->dst_address),
122 .src = to_ip46 (mp->is_ipv6, mp->src_address),
125 /* Check src & dst are different */
126 if (ip46_address_cmp (&a.dst, &a.src) == 0)
128 rv = VNET_API_ERROR_SAME_SRC_DST;
131 if (ip46_address_is_multicast (&a.dst) &&
132 !vnet_sw_if_index_is_api_valid (a.mcast_sw_if_index))
134 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
138 u32 sw_if_index = ~0;
139 rv = vnet_gtpu_add_del_tunnel (&a, &sw_if_index);
143 REPLY_MACRO2(VL_API_GTPU_ADD_DEL_TUNNEL_REPLY,
145 rmp->sw_if_index = ntohl (sw_if_index);
150 static void send_gtpu_tunnel_details
151 (gtpu_tunnel_t * t, vl_api_registration_t * reg, u32 context)
153 vl_api_gtpu_tunnel_details_t *rmp;
154 ip4_main_t *im4 = &ip4_main;
155 ip6_main_t *im6 = &ip6_main;
156 u8 is_ipv6 = !ip46_address_is_ip4 (&t->dst);
158 rmp = vl_msg_api_alloc (sizeof (*rmp));
159 clib_memset (rmp, 0, sizeof (*rmp));
160 rmp->_vl_msg_id = ntohs (VL_API_GTPU_TUNNEL_DETAILS);
163 memcpy (rmp->src_address, t->src.ip6.as_u8, 16);
164 memcpy (rmp->dst_address, t->dst.ip6.as_u8, 16);
165 rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id);
169 memcpy (rmp->src_address, t->src.ip4.as_u8, 4);
170 memcpy (rmp->dst_address, t->dst.ip4.as_u8, 4);
171 rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
173 rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
174 rmp->teid = htonl (t->teid);
175 rmp->decap_next_index = htonl (t->decap_next_index);
176 rmp->sw_if_index = htonl (t->sw_if_index);
177 rmp->is_ipv6 = is_ipv6;
178 rmp->context = context;
180 vl_api_send_msg (reg, (u8 *) rmp);
184 vl_api_gtpu_tunnel_dump_t_handler (vl_api_gtpu_tunnel_dump_t * mp)
186 vl_api_registration_t *reg;
187 gtpu_main_t *gtm = >pu_main;
191 reg = vl_api_client_index_to_registration (mp->client_index);
195 sw_if_index = ntohl (mp->sw_if_index);
197 if (~0 == sw_if_index)
200 pool_foreach (t, gtm->tunnels,
202 send_gtpu_tunnel_details(t, reg, mp->context);
208 if ((sw_if_index >= vec_len (gtm->tunnel_index_by_sw_if_index)) ||
209 (~0 == gtm->tunnel_index_by_sw_if_index[sw_if_index]))
213 t = >m->tunnels[gtm->tunnel_index_by_sw_if_index[sw_if_index]];
214 send_gtpu_tunnel_details (t, reg, mp->context);
219 static clib_error_t *
220 gtpu_api_hookup (vlib_main_t * vm)
222 gtpu_main_t *gtm = >pu_main;
224 u8 *name = format (0, "gtpu_%08x%c", api_version, 0);
225 gtm->msg_id_base = vl_msg_api_get_msg_ids
226 ((char *) name, VL_MSG_FIRST_AVAILABLE);
229 vl_msg_api_set_handlers((VL_API_##N + gtm->msg_id_base), \
231 vl_api_##n##_t_handler, \
233 vl_api_##n##_t_endian, \
234 vl_api_##n##_t_print, \
235 sizeof(vl_api_##n##_t), 1);
236 foreach_gtpu_plugin_api_msg;
239 /* Add our API messages to the global name_crc hash table */
240 setup_message_id_table (gtm, &api_main);
245 VLIB_API_INIT_FUNCTION (gtpu_api_hookup);
248 * fd.io coding-style-patch-verification: ON
251 * eval: (c-set-style "gnu")