2 *------------------------------------------------------------------
3 * vxlan_gpe_api.c - vxlan_gpe 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-gpe/vxlan_gpe.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_GPE_BYPASS, sw_interface_set_vxlan_gpe_bypass) \
49 _(VXLAN_GPE_ADD_DEL_TUNNEL, vxlan_gpe_add_del_tunnel) \
50 _(VXLAN_GPE_TUNNEL_DUMP, vxlan_gpe_tunnel_dump)
53 vl_api_sw_interface_set_vxlan_gpe_bypass_t_handler
54 (vl_api_sw_interface_set_vxlan_gpe_bypass_t * mp)
56 vl_api_sw_interface_set_vxlan_gpe_bypass_reply_t *rmp;
58 u32 sw_if_index = ntohl (mp->sw_if_index);
60 VALIDATE_SW_IF_INDEX (mp);
62 vnet_int_vxlan_gpe_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_GPE_BYPASS_REPLY);
69 vl_api_vxlan_gpe_add_del_tunnel_t_handler
70 (vl_api_vxlan_gpe_add_del_tunnel_t * mp)
72 vl_api_vxlan_gpe_add_del_tunnel_reply_t *rmp;
74 vnet_vxlan_gpe_add_del_tunnel_args_t _a, *a = &_a;
75 u32 encap_fib_index, decap_fib_index;
78 ip4_main_t *im = &ip4_main;
82 p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
85 rv = VNET_API_ERROR_NO_SUCH_FIB;
88 encap_fib_index = p[0];
90 protocol = mp->protocol;
92 /* Interpret decap_vrf_id as an opaque if sending to other-than-ip4-input */
93 if (protocol == VXLAN_GPE_INPUT_NEXT_IP4_INPUT)
95 p = hash_get (im->fib_index_by_table_id, ntohl (mp->decap_vrf_id));
98 rv = VNET_API_ERROR_NO_SUCH_INNER_FIB;
101 decap_fib_index = p[0];
105 decap_fib_index = ntohl (mp->decap_vrf_id);
108 /* Check src & dst are different */
109 if ((mp->is_ipv6 && memcmp (mp->local, mp->remote, 16) == 0) ||
110 (!mp->is_ipv6 && memcmp (mp->local, mp->remote, 4) == 0))
112 rv = VNET_API_ERROR_SAME_SRC_DST;
115 clib_memset (a, 0, sizeof (*a));
117 a->is_add = mp->is_add;
118 a->is_ip6 = mp->is_ipv6;
119 /* ip addresses sent in network byte order */
122 clib_memcpy (&(a->local.ip6), mp->local, 16);
123 clib_memcpy (&(a->remote.ip6), mp->remote, 16);
127 clib_memcpy (&(a->local.ip4), mp->local, 4);
128 clib_memcpy (&(a->remote.ip4), mp->remote, 4);
130 a->mcast_sw_if_index = ntohl (mp->mcast_sw_if_index);
131 a->encap_fib_index = encap_fib_index;
132 a->decap_fib_index = decap_fib_index;
133 a->protocol = protocol;
134 a->vni = ntohl (mp->vni);
135 rv = vnet_vxlan_gpe_add_del_tunnel (a, &sw_if_index);
139 REPLY_MACRO2(VL_API_VXLAN_GPE_ADD_DEL_TUNNEL_REPLY,
141 rmp->sw_if_index = ntohl (sw_if_index);
146 static void send_vxlan_gpe_tunnel_details
147 (vxlan_gpe_tunnel_t * t, vl_api_registration_t * reg, u32 context)
149 vl_api_vxlan_gpe_tunnel_details_t *rmp;
150 ip4_main_t *im4 = &ip4_main;
151 ip6_main_t *im6 = &ip6_main;
152 u8 is_ipv6 = !(t->flags & VXLAN_GPE_TUNNEL_IS_IPV4);
154 rmp = vl_msg_api_alloc (sizeof (*rmp));
155 clib_memset (rmp, 0, sizeof (*rmp));
156 rmp->_vl_msg_id = ntohs (VL_API_VXLAN_GPE_TUNNEL_DETAILS);
159 memcpy (rmp->local, &(t->local.ip6.as_u8), 16);
160 memcpy (rmp->remote, &(t->remote.ip6.as_u8), 16);
161 rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id);
162 rmp->decap_vrf_id = htonl (im6->fibs[t->decap_fib_index].ft_table_id);
166 memcpy (rmp->local, &(t->local.ip4.as_u8), 4);
167 memcpy (rmp->remote, &(t->remote.ip4.as_u8), 4);
168 rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
169 rmp->decap_vrf_id = htonl (im4->fibs[t->decap_fib_index].ft_table_id);
171 rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
172 rmp->vni = htonl (t->vni);
173 rmp->protocol = t->protocol;
174 rmp->sw_if_index = htonl (t->sw_if_index);
175 rmp->is_ipv6 = is_ipv6;
176 rmp->context = context;
178 vl_api_send_msg (reg, (u8 *) rmp);
181 static void vl_api_vxlan_gpe_tunnel_dump_t_handler
182 (vl_api_vxlan_gpe_tunnel_dump_t * mp)
184 vl_api_registration_t *reg;
185 vxlan_gpe_main_t *vgm = &vxlan_gpe_main;
186 vxlan_gpe_tunnel_t *t;
189 reg = vl_api_client_index_to_registration (mp->client_index);
193 sw_if_index = ntohl (mp->sw_if_index);
195 if (~0 == sw_if_index)
198 pool_foreach (t, vgm->tunnels,
200 send_vxlan_gpe_tunnel_details(t, reg, mp->context);
206 if ((sw_if_index >= vec_len (vgm->tunnel_index_by_sw_if_index)) ||
207 (~0 == vgm->tunnel_index_by_sw_if_index[sw_if_index]))
211 t = &vgm->tunnels[vgm->tunnel_index_by_sw_if_index[sw_if_index]];
212 send_vxlan_gpe_tunnel_details (t, reg, mp->context);
219 * Add vpe's API message handlers to the table.
220 * vlib has already mapped shared memory and
221 * added the client registration handlers.
222 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
224 #define vl_msg_name_crc_list
225 #include <vnet/vnet_all_api_h.h>
226 #undef vl_msg_name_crc_list
229 setup_message_id_table (api_main_t * am)
231 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
232 foreach_vl_msg_name_crc_vxlan_gpe;
236 static clib_error_t *
237 vxlan_gpe_api_hookup (vlib_main_t * vm)
239 api_main_t *am = &api_main;
242 vl_msg_api_set_handlers(VL_API_##N, #n, \
243 vl_api_##n##_t_handler, \
245 vl_api_##n##_t_endian, \
246 vl_api_##n##_t_print, \
247 sizeof(vl_api_##n##_t), 1);
251 am->api_trace_cfg[VL_API_VXLAN_GPE_ADD_DEL_TUNNEL].size +=
255 * Set up the (msg_name, crc, message-id) table
257 setup_message_id_table (am);
262 VLIB_API_INIT_FUNCTION (vxlan_gpe_api_hookup);
265 * fd.io coding-style-patch-verification: ON
268 * eval: (c-set-style "gnu")