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/ip/ip_types_api.h>
31 #include <vnet/vnet_msg_enum.h>
33 #define vl_typedefs /* define message structures */
34 #include <vnet/vnet_all_api_h.h>
37 #define vl_endianfun /* define message structures */
38 #include <vnet/vnet_all_api_h.h>
41 /* instantiate all the print functions we know about */
42 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
44 #include <vnet/vnet_all_api_h.h>
47 #include <vlibapi/api_helper_macros.h>
49 #define foreach_vpe_api_msg \
50 _(SW_INTERFACE_SET_VXLAN_BYPASS, sw_interface_set_vxlan_bypass) \
51 _(VXLAN_ADD_DEL_TUNNEL, vxlan_add_del_tunnel) \
52 _(VXLAN_TUNNEL_DUMP, vxlan_tunnel_dump) \
53 _(VXLAN_OFFLOAD_RX, vxlan_offload_rx)
56 vl_api_vxlan_offload_rx_t_handler (vl_api_vxlan_offload_rx_t * mp)
58 vl_api_vxlan_offload_rx_reply_t *rmp;
60 u32 hw_if_index = ntohl (mp->hw_if_index);
61 u32 sw_if_index = ntohl (mp->sw_if_index);
63 if (!vnet_hw_interface_is_valid (vnet_get_main (), hw_if_index))
65 rv = VNET_API_ERROR_NO_SUCH_ENTRY;
68 VALIDATE_SW_IF_INDEX (mp);
70 u32 t_index = vnet_vxlan_get_tunnel_index (sw_if_index);
73 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX_2;
77 vxlan_main_t *vxm = &vxlan_main;
78 vxlan_tunnel_t *t = pool_elt_at_index (vxm->tunnels, t_index);
79 if (!ip46_address_is_ip4 (&t->dst))
81 rv = VNET_API_ERROR_INVALID_ADDRESS_FAMILY;
85 vnet_main_t *vnm = vnet_get_main ();
86 vnet_hw_interface_t *hw_if = vnet_get_hw_interface (vnm, hw_if_index);
87 ip4_main_t *im = &ip4_main;
89 vec_elt (im->fib_index_by_sw_if_index, hw_if->sw_if_index);
91 if (t->encap_fib_index != rx_fib_index)
93 rv = VNET_API_ERROR_NO_SUCH_FIB;
97 if (vnet_vxlan_add_del_rx_flow (hw_if_index, t_index, mp->enable))
99 rv = VNET_API_ERROR_UNSPECIFIED;
102 BAD_SW_IF_INDEX_LABEL;
105 REPLY_MACRO (VL_API_VXLAN_OFFLOAD_RX_REPLY);
109 vl_api_sw_interface_set_vxlan_bypass_t_handler
110 (vl_api_sw_interface_set_vxlan_bypass_t * mp)
112 vl_api_sw_interface_set_vxlan_bypass_reply_t *rmp;
114 u32 sw_if_index = ntohl (mp->sw_if_index);
116 VALIDATE_SW_IF_INDEX (mp);
118 vnet_int_vxlan_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
119 BAD_SW_IF_INDEX_LABEL;
121 REPLY_MACRO (VL_API_SW_INTERFACE_SET_VXLAN_BYPASS_REPLY);
124 static void vl_api_vxlan_add_del_tunnel_t_handler
125 (vl_api_vxlan_add_del_tunnel_t * mp)
127 vl_api_vxlan_add_del_tunnel_reply_t *rmp;
131 ip46_address_t src, dst;
133 ip_address_decode (&mp->src_address, &src);
134 ip_address_decode (&mp->dst_address, &dst);
136 if (ip46_address_is_ip4 (&src) != ip46_address_is_ip4 (&dst))
138 rv = VNET_API_ERROR_INVALID_VALUE;
142 is_ipv6 = !ip46_address_is_ip4 (&src);
144 fib_index = fib_table_find (fib_ip_proto (is_ipv6),
145 ntohl (mp->encap_vrf_id));
148 rv = VNET_API_ERROR_NO_SUCH_FIB;
152 vnet_vxlan_add_del_tunnel_args_t a = {
153 .is_add = mp->is_add,
155 .instance = ntohl (mp->instance),
156 .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
157 .encap_fib_index = fib_index,
158 .decap_next_index = ntohl (mp->decap_next_index),
159 .vni = ntohl (mp->vni),
164 /* Check src & dst are different */
165 if (ip46_address_cmp (&a.dst, &a.src) == 0)
167 rv = VNET_API_ERROR_SAME_SRC_DST;
170 if (ip46_address_is_multicast (&a.dst) &&
171 !vnet_sw_if_index_is_api_valid (a.mcast_sw_if_index))
173 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
177 u32 sw_if_index = ~0;
178 rv = vnet_vxlan_add_del_tunnel (&a, &sw_if_index);
182 REPLY_MACRO2(VL_API_VXLAN_ADD_DEL_TUNNEL_REPLY,
184 rmp->sw_if_index = ntohl (sw_if_index);
189 static void send_vxlan_tunnel_details
190 (vxlan_tunnel_t * t, vl_api_registration_t * reg, u32 context)
192 vl_api_vxlan_tunnel_details_t *rmp;
193 ip4_main_t *im4 = &ip4_main;
194 ip6_main_t *im6 = &ip6_main;
196 rmp = vl_msg_api_alloc (sizeof (*rmp));
197 clib_memset (rmp, 0, sizeof (*rmp));
198 rmp->_vl_msg_id = ntohs (VL_API_VXLAN_TUNNEL_DETAILS);
200 ip_address_encode (&t->src, IP46_TYPE_ANY, &rmp->src_address);
201 ip_address_encode (&t->dst, IP46_TYPE_ANY, &rmp->dst_address);
203 if (ip46_address_is_ip4 (&t->dst))
204 rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
206 rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id);
208 rmp->instance = htonl (t->user_instance);
209 rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
210 rmp->vni = htonl (t->vni);
211 rmp->decap_next_index = htonl (t->decap_next_index);
212 rmp->sw_if_index = htonl (t->sw_if_index);
213 rmp->context = context;
215 vl_api_send_msg (reg, (u8 *) rmp);
218 static void vl_api_vxlan_tunnel_dump_t_handler
219 (vl_api_vxlan_tunnel_dump_t * mp)
221 vl_api_registration_t *reg;
222 vxlan_main_t *vxm = &vxlan_main;
226 reg = vl_api_client_index_to_registration (mp->client_index);
230 sw_if_index = ntohl (mp->sw_if_index);
232 if (~0 == sw_if_index)
235 pool_foreach (t, vxm->tunnels,
237 send_vxlan_tunnel_details(t, reg, mp->context);
243 if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
244 (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
248 t = &vxm->tunnels[vxm->tunnel_index_by_sw_if_index[sw_if_index]];
249 send_vxlan_tunnel_details (t, reg, mp->context);
255 * Add vpe's API message handlers to the table.
256 * vlib has already mapped shared memory and
257 * added the client registration handlers.
258 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
260 #define vl_msg_name_crc_list
261 #include <vnet/vnet_all_api_h.h>
262 #undef vl_msg_name_crc_list
265 setup_message_id_table (api_main_t * am)
267 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
268 foreach_vl_msg_name_crc_vxlan;
272 static clib_error_t *
273 vxlan_api_hookup (vlib_main_t * vm)
275 api_main_t *am = vlibapi_get_main ();
278 vl_msg_api_set_handlers(VL_API_##N, #n, \
279 vl_api_##n##_t_handler, \
281 vl_api_##n##_t_endian, \
282 vl_api_##n##_t_print, \
283 sizeof(vl_api_##n##_t), 1);
287 am->api_trace_cfg[VL_API_VXLAN_ADD_DEL_TUNNEL].size += 16 * sizeof (u32);
290 * Set up the (msg_name, crc, message-id) table
292 setup_message_id_table (am);
297 VLIB_API_INIT_FUNCTION (vxlan_api_hookup);
300 * fd.io coding-style-patch-verification: ON
303 * eval: (c-set-style "gnu")