2 *------------------------------------------------------------------
3 * vxlan_api.c - vxlan 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/vnet.h>
21 #include <vlibmemory/api.h>
23 #include <vnet/interface.h>
24 #include <vnet/api_errno.h>
25 #include <vnet/feature/feature.h>
26 #include <vnet/vxlan/vxlan.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 _(SW_INTERFACE_SET_VXLAN_BYPASS, sw_interface_set_vxlan_bypass) \
49 _(VXLAN_ADD_DEL_TUNNEL, vxlan_add_del_tunnel) \
50 _(VXLAN_TUNNEL_DUMP, vxlan_tunnel_dump)
53 vl_api_sw_interface_set_vxlan_bypass_t_handler
54 (vl_api_sw_interface_set_vxlan_bypass_t * mp)
56 vl_api_sw_interface_set_vxlan_bypass_reply_t *rmp;
58 u32 sw_if_index = ntohl (mp->sw_if_index);
60 VALIDATE_SW_IF_INDEX (mp);
62 vnet_int_vxlan_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
63 BAD_SW_IF_INDEX_LABEL;
65 REPLY_MACRO (VL_API_SW_INTERFACE_SET_VXLAN_BYPASS_REPLY);
68 static void vl_api_vxlan_add_del_tunnel_t_handler
69 (vl_api_vxlan_add_del_tunnel_t * mp)
71 vl_api_vxlan_add_del_tunnel_reply_t *rmp;
73 vnet_vxlan_add_del_tunnel_args_t _a, *a = &_a;
76 ip4_main_t *im = &ip4_main;
77 vnet_main_t *vnm = vnet_get_main ();
80 p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
83 rv = VNET_API_ERROR_NO_SUCH_FIB;
86 encap_fib_index = p[0];
87 memset (a, 0, sizeof (*a));
89 a->is_add = mp->is_add;
90 a->is_ip6 = mp->is_ipv6;
92 /* ip addresses sent in network byte order */
93 ip46_from_addr_buf (mp->is_ipv6, mp->dst_address, &a->dst);
94 ip46_from_addr_buf (mp->is_ipv6, mp->src_address, &a->src);
96 /* Check src & dst are different */
97 if (ip46_address_cmp (&a->dst, &a->src) == 0)
99 rv = VNET_API_ERROR_SAME_SRC_DST;
102 a->mcast_sw_if_index = ntohl (mp->mcast_sw_if_index);
103 if (ip46_address_is_multicast (&a->dst) &&
104 pool_is_free_index (vnm->interface_main.sw_interfaces,
105 a->mcast_sw_if_index))
107 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
110 a->encap_fib_index = encap_fib_index;
111 a->decap_next_index = ntohl (mp->decap_next_index);
112 a->vni = ntohl (mp->vni);
113 rv = vnet_vxlan_add_del_tunnel (a, &sw_if_index);
117 REPLY_MACRO2(VL_API_VXLAN_ADD_DEL_TUNNEL_REPLY,
119 rmp->sw_if_index = ntohl (sw_if_index);
124 static void send_vxlan_tunnel_details
125 (vxlan_tunnel_t * t, unix_shared_memory_queue_t * q, u32 context)
127 vl_api_vxlan_tunnel_details_t *rmp;
128 ip4_main_t *im4 = &ip4_main;
129 ip6_main_t *im6 = &ip6_main;
130 u8 is_ipv6 = !ip46_address_is_ip4 (&t->dst);
132 rmp = vl_msg_api_alloc (sizeof (*rmp));
133 memset (rmp, 0, sizeof (*rmp));
134 rmp->_vl_msg_id = ntohs (VL_API_VXLAN_TUNNEL_DETAILS);
137 memcpy (rmp->src_address, t->src.ip6.as_u8, 16);
138 memcpy (rmp->dst_address, t->dst.ip6.as_u8, 16);
139 rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id);
143 memcpy (rmp->src_address, t->src.ip4.as_u8, 4);
144 memcpy (rmp->dst_address, t->dst.ip4.as_u8, 4);
145 rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
147 rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
148 rmp->vni = htonl (t->vni);
149 rmp->decap_next_index = htonl (t->decap_next_index);
150 rmp->sw_if_index = htonl (t->sw_if_index);
151 rmp->is_ipv6 = is_ipv6;
152 rmp->context = context;
154 vl_msg_api_send_shmem (q, (u8 *) & rmp);
157 static void vl_api_vxlan_tunnel_dump_t_handler
158 (vl_api_vxlan_tunnel_dump_t * mp)
160 unix_shared_memory_queue_t *q;
161 vxlan_main_t *vxm = &vxlan_main;
165 q = vl_api_client_index_to_input_queue (mp->client_index);
171 sw_if_index = ntohl (mp->sw_if_index);
173 if (~0 == sw_if_index)
176 pool_foreach (t, vxm->tunnels,
178 send_vxlan_tunnel_details(t, q, mp->context);
184 if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
185 (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
189 t = &vxm->tunnels[vxm->tunnel_index_by_sw_if_index[sw_if_index]];
190 send_vxlan_tunnel_details (t, q, mp->context);
196 * Add vpe's API message handlers to the table.
197 * vlib has alread mapped shared memory and
198 * added the client registration handlers.
199 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
201 #define vl_msg_name_crc_list
202 #include <vnet/vnet_all_api_h.h>
203 #undef vl_msg_name_crc_list
206 setup_message_id_table (api_main_t * am)
208 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
209 foreach_vl_msg_name_crc_vxlan;
213 static clib_error_t *
214 vxlan_api_hookup (vlib_main_t * vm)
216 api_main_t *am = &api_main;
219 vl_msg_api_set_handlers(VL_API_##N, #n, \
220 vl_api_##n##_t_handler, \
222 vl_api_##n##_t_endian, \
223 vl_api_##n##_t_print, \
224 sizeof(vl_api_##n##_t), 1);
228 am->api_trace_cfg[VL_API_VXLAN_ADD_DEL_TUNNEL].size += 16 * sizeof (u32);
231 * Set up the (msg_name, crc, message-id) table
233 setup_message_id_table (am);
238 VLIB_API_INIT_FUNCTION (vxlan_api_hookup);
241 * fd.io coding-style-patch-verification: ON
244 * eval: (c-set-style "gnu")