Line data Source code
1 : /*
2 : *------------------------------------------------------------------
3 : * vxlan_api.c - vxlan api
4 : *
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:
9 : *
10 : * http://www.apache.org/licenses/LICENSE-2.0
11 : *
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 : *------------------------------------------------------------------
18 : */
19 :
20 : #include <vnet/vnet.h>
21 : #include <vlibmemory/api.h>
22 :
23 : #include <vnet/interface.h>
24 : #include <vnet/api_errno.h>
25 : #include <vnet/feature/feature.h>
26 : #include <vxlan/vxlan.h>
27 : #include <vnet/fib/fib_table.h>
28 : #include <vnet/ip/ip_types_api.h>
29 : #include <vnet/udp/udp_local.h>
30 : #include <vnet/format_fns.h>
31 : #include <vxlan/vxlan.api_enum.h>
32 : #include <vxlan/vxlan.api_types.h>
33 :
34 : static u16 msg_id_base;
35 :
36 : #define REPLY_MSG_ID_BASE msg_id_base
37 : #include <vlibapi/api_helper_macros.h>
38 :
39 : static void
40 0 : vl_api_vxlan_offload_rx_t_handler (vl_api_vxlan_offload_rx_t * mp)
41 : {
42 : vl_api_vxlan_offload_rx_reply_t *rmp;
43 0 : int rv = 0;
44 0 : u32 hw_if_index = ntohl (mp->hw_if_index);
45 0 : u32 sw_if_index = ntohl (mp->sw_if_index);
46 :
47 0 : if (!vnet_hw_interface_is_valid (vnet_get_main (), hw_if_index))
48 : {
49 0 : rv = VNET_API_ERROR_NO_SUCH_ENTRY;
50 0 : goto err;
51 : }
52 0 : VALIDATE_SW_IF_INDEX (mp);
53 :
54 0 : u32 t_index = vnet_vxlan_get_tunnel_index (sw_if_index);
55 0 : if (t_index == ~0)
56 : {
57 0 : rv = VNET_API_ERROR_INVALID_SW_IF_INDEX_2;
58 0 : goto err;
59 : }
60 :
61 0 : vxlan_main_t *vxm = &vxlan_main;
62 0 : vxlan_tunnel_t *t = pool_elt_at_index (vxm->tunnels, t_index);
63 0 : if (!ip46_address_is_ip4 (&t->dst))
64 : {
65 0 : rv = VNET_API_ERROR_INVALID_ADDRESS_FAMILY;
66 0 : goto err;
67 : }
68 :
69 0 : vnet_main_t *vnm = vnet_get_main ();
70 0 : vnet_hw_interface_t *hw_if = vnet_get_hw_interface (vnm, hw_if_index);
71 0 : ip4_main_t *im = &ip4_main;
72 0 : u32 rx_fib_index =
73 0 : vec_elt (im->fib_index_by_sw_if_index, hw_if->sw_if_index);
74 :
75 0 : if (t->encap_fib_index != rx_fib_index)
76 : {
77 0 : rv = VNET_API_ERROR_NO_SUCH_FIB;
78 0 : goto err;
79 : }
80 :
81 0 : if (vnet_vxlan_add_del_rx_flow (hw_if_index, t_index, mp->enable))
82 : {
83 0 : rv = VNET_API_ERROR_UNSPECIFIED;
84 0 : goto err;
85 : }
86 0 : BAD_SW_IF_INDEX_LABEL;
87 0 : err:
88 :
89 0 : REPLY_MACRO (VL_API_VXLAN_OFFLOAD_RX_REPLY);
90 : }
91 :
92 : static void
93 0 : vl_api_sw_interface_set_vxlan_bypass_t_handler
94 : (vl_api_sw_interface_set_vxlan_bypass_t * mp)
95 : {
96 : vl_api_sw_interface_set_vxlan_bypass_reply_t *rmp;
97 0 : int rv = 0;
98 0 : u32 sw_if_index = ntohl (mp->sw_if_index);
99 :
100 0 : VALIDATE_SW_IF_INDEX (mp);
101 :
102 0 : vnet_int_vxlan_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
103 0 : BAD_SW_IF_INDEX_LABEL;
104 :
105 0 : REPLY_MACRO (VL_API_SW_INTERFACE_SET_VXLAN_BYPASS_REPLY);
106 : }
107 :
108 : static int
109 5840 : vxlan_add_del_tunnel_clean_input (vnet_vxlan_add_del_tunnel_args_t *a,
110 : u32 encap_vrf_id)
111 : {
112 5840 : a->is_ip6 = !ip46_address_is_ip4 (&a->src);
113 :
114 5840 : a->encap_fib_index = fib_table_find (fib_ip_proto (a->is_ip6), encap_vrf_id);
115 5840 : if (a->encap_fib_index == ~0)
116 : {
117 0 : return VNET_API_ERROR_NO_SUCH_FIB;
118 : }
119 :
120 5840 : if (ip46_address_is_ip4 (&a->src) != ip46_address_is_ip4 (&a->dst))
121 : {
122 0 : return VNET_API_ERROR_INVALID_VALUE;
123 : }
124 :
125 : /* Check src & dst are different */
126 5840 : if (ip46_address_cmp (&a->dst, &a->src) == 0)
127 : {
128 0 : return VNET_API_ERROR_SAME_SRC_DST;
129 : }
130 10724 : if (ip46_address_is_multicast (&a->dst) &&
131 4884 : !vnet_sw_if_index_is_api_valid (a->mcast_sw_if_index))
132 : {
133 0 : return VNET_API_ERROR_INVALID_SW_IF_INDEX;
134 : }
135 5840 : return 0;
136 : }
137 :
138 : static void
139 0 : vl_api_vxlan_add_del_tunnel_t_handler (vl_api_vxlan_add_del_tunnel_t *mp)
140 : {
141 : vl_api_vxlan_add_del_tunnel_reply_t *rmp;
142 0 : u32 sw_if_index = ~0;
143 0 : int rv = 0;
144 :
145 0 : vnet_vxlan_add_del_tunnel_args_t a = {
146 0 : .is_add = mp->is_add,
147 0 : .instance = ntohl (mp->instance),
148 0 : .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
149 0 : .decap_next_index = ntohl (mp->decap_next_index),
150 0 : .vni = ntohl (mp->vni),
151 : };
152 0 : ip_address_decode (&mp->src_address, &a.src);
153 0 : ip_address_decode (&mp->dst_address, &a.dst);
154 :
155 0 : rv = vxlan_add_del_tunnel_clean_input (&a, ntohl (mp->encap_vrf_id));
156 0 : if (rv)
157 0 : goto out;
158 0 : a.dst_port = a.is_ip6 ? UDP_DST_PORT_vxlan6 : UDP_DST_PORT_vxlan,
159 0 : a.src_port = a.is_ip6 ? UDP_DST_PORT_vxlan6 : UDP_DST_PORT_vxlan,
160 0 : rv = vnet_vxlan_add_del_tunnel (&a, &sw_if_index);
161 :
162 0 : out:
163 0 : REPLY_MACRO2(VL_API_VXLAN_ADD_DEL_TUNNEL_REPLY,
164 : ({
165 : rmp->sw_if_index = ntohl (sw_if_index);
166 : }));
167 : }
168 :
169 : static void
170 2920 : vl_api_vxlan_add_del_tunnel_v2_t_handler (vl_api_vxlan_add_del_tunnel_v2_t *mp)
171 : {
172 : vl_api_vxlan_add_del_tunnel_v2_reply_t *rmp;
173 2920 : u32 sw_if_index = ~0;
174 2920 : int rv = 0;
175 :
176 2920 : vnet_vxlan_add_del_tunnel_args_t a = {
177 2920 : .is_add = mp->is_add,
178 2920 : .instance = ntohl (mp->instance),
179 2920 : .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
180 2920 : .decap_next_index = ntohl (mp->decap_next_index),
181 2920 : .vni = ntohl (mp->vni),
182 2920 : .dst_port = ntohs (mp->dst_port),
183 2920 : .src_port = ntohs (mp->src_port),
184 : };
185 :
186 2920 : ip_address_decode (&mp->src_address, &a.src);
187 2920 : ip_address_decode (&mp->dst_address, &a.dst);
188 :
189 2920 : rv = vxlan_add_del_tunnel_clean_input (&a, ntohl (mp->encap_vrf_id));
190 2920 : if (rv)
191 0 : goto out;
192 2920 : rv = vnet_vxlan_add_del_tunnel (&a, &sw_if_index);
193 2920 : out:
194 2920 : REPLY_MACRO2 (VL_API_VXLAN_ADD_DEL_TUNNEL_V2_REPLY,
195 : ({ rmp->sw_if_index = ntohl (sw_if_index); }));
196 : }
197 :
198 : static void
199 2920 : vl_api_vxlan_add_del_tunnel_v3_t_handler (vl_api_vxlan_add_del_tunnel_v3_t *mp)
200 : {
201 : vl_api_vxlan_add_del_tunnel_v3_reply_t *rmp;
202 2920 : u32 sw_if_index = ~0;
203 2920 : int rv = 0;
204 :
205 2920 : vnet_vxlan_add_del_tunnel_args_t a = {
206 2920 : .is_add = mp->is_add,
207 2920 : .instance = ntohl (mp->instance),
208 2920 : .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
209 2920 : .decap_next_index = ntohl (mp->decap_next_index),
210 2920 : .vni = ntohl (mp->vni),
211 2920 : .dst_port = ntohs (mp->dst_port),
212 2920 : .src_port = ntohs (mp->src_port),
213 2920 : .is_l3 = mp->is_l3,
214 : };
215 :
216 2920 : ip_address_decode (&mp->src_address, &a.src);
217 2920 : ip_address_decode (&mp->dst_address, &a.dst);
218 :
219 2920 : rv = vxlan_add_del_tunnel_clean_input (&a, ntohl (mp->encap_vrf_id));
220 2920 : if (rv)
221 0 : goto out;
222 2920 : rv = vnet_vxlan_add_del_tunnel (&a, &sw_if_index);
223 2920 : out:
224 2920 : REPLY_MACRO2 (VL_API_VXLAN_ADD_DEL_TUNNEL_V3_REPLY,
225 : ({ rmp->sw_if_index = ntohl (sw_if_index); }));
226 : }
227 :
228 0 : static void send_vxlan_tunnel_details
229 : (vxlan_tunnel_t * t, vl_api_registration_t * reg, u32 context)
230 : {
231 : vl_api_vxlan_tunnel_details_t *rmp;
232 0 : ip4_main_t *im4 = &ip4_main;
233 0 : ip6_main_t *im6 = &ip6_main;
234 :
235 0 : rmp = vl_msg_api_alloc (sizeof (*rmp));
236 0 : clib_memset (rmp, 0, sizeof (*rmp));
237 0 : rmp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_VXLAN_TUNNEL_DETAILS);
238 :
239 0 : ip_address_encode (&t->src, IP46_TYPE_ANY, &rmp->src_address);
240 0 : ip_address_encode (&t->dst, IP46_TYPE_ANY, &rmp->dst_address);
241 :
242 0 : if (ip46_address_is_ip4 (&t->dst))
243 0 : rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
244 : else
245 0 : rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id);
246 :
247 0 : rmp->instance = htonl (t->user_instance);
248 0 : rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
249 0 : rmp->vni = htonl (t->vni);
250 0 : rmp->decap_next_index = htonl (t->decap_next_index);
251 0 : rmp->sw_if_index = htonl (t->sw_if_index);
252 0 : rmp->context = context;
253 :
254 0 : vl_api_send_msg (reg, (u8 *) rmp);
255 0 : }
256 :
257 0 : static void vl_api_vxlan_tunnel_dump_t_handler
258 : (vl_api_vxlan_tunnel_dump_t * mp)
259 : {
260 : vl_api_registration_t *reg;
261 0 : vxlan_main_t *vxm = &vxlan_main;
262 : vxlan_tunnel_t *t;
263 : u32 sw_if_index;
264 :
265 0 : reg = vl_api_client_index_to_registration (mp->client_index);
266 0 : if (!reg)
267 0 : return;
268 :
269 0 : sw_if_index = ntohl (mp->sw_if_index);
270 :
271 0 : if (~0 == sw_if_index)
272 : {
273 0 : pool_foreach (t, vxm->tunnels)
274 0 : send_vxlan_tunnel_details(t, reg, mp->context);
275 : }
276 : else
277 : {
278 0 : if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
279 0 : (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
280 : {
281 0 : return;
282 : }
283 0 : t = &vxm->tunnels[vxm->tunnel_index_by_sw_if_index[sw_if_index]];
284 0 : send_vxlan_tunnel_details (t, reg, mp->context);
285 : }
286 : }
287 :
288 : static void
289 39700 : send_vxlan_tunnel_v2_details (vxlan_tunnel_t *t, vl_api_registration_t *reg,
290 : u32 context)
291 : {
292 : vl_api_vxlan_tunnel_v2_details_t *rmp;
293 39700 : ip4_main_t *im4 = &ip4_main;
294 39700 : ip6_main_t *im6 = &ip6_main;
295 :
296 39700 : rmp = vl_msg_api_alloc (sizeof (*rmp));
297 39700 : clib_memset (rmp, 0, sizeof (*rmp));
298 39700 : rmp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_VXLAN_TUNNEL_V2_DETAILS);
299 :
300 39700 : ip_address_encode (&t->src, IP46_TYPE_ANY, &rmp->src_address);
301 39700 : ip_address_encode (&t->dst, IP46_TYPE_ANY, &rmp->dst_address);
302 39700 : rmp->src_port = htons (t->src_port);
303 39700 : rmp->dst_port = htons (t->dst_port);
304 :
305 39700 : if (ip46_address_is_ip4 (&t->dst))
306 34376 : rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
307 : else
308 5324 : rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id);
309 :
310 39700 : rmp->instance = htonl (t->user_instance);
311 39700 : rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
312 39700 : rmp->vni = htonl (t->vni);
313 39700 : rmp->decap_next_index = htonl (t->decap_next_index);
314 39700 : rmp->sw_if_index = htonl (t->sw_if_index);
315 39700 : rmp->context = context;
316 :
317 39700 : vl_api_send_msg (reg, (u8 *) rmp);
318 39700 : }
319 :
320 : static void
321 3416 : vl_api_vxlan_tunnel_v2_dump_t_handler (vl_api_vxlan_tunnel_v2_dump_t *mp)
322 : {
323 : vl_api_registration_t *reg;
324 3416 : vxlan_main_t *vxm = &vxlan_main;
325 : vxlan_tunnel_t *t;
326 : u32 sw_if_index;
327 :
328 3416 : reg = vl_api_client_index_to_registration (mp->client_index);
329 3416 : if (!reg)
330 0 : return;
331 :
332 3416 : sw_if_index = ntohl (mp->sw_if_index);
333 :
334 3416 : if (~0 == sw_if_index)
335 : {
336 43116 : pool_foreach (t, vxm->tunnels)
337 39700 : send_vxlan_tunnel_v2_details (t, reg, mp->context);
338 : }
339 : else
340 : {
341 0 : if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
342 0 : (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
343 : {
344 0 : return;
345 : }
346 0 : t = &vxm->tunnels[vxm->tunnel_index_by_sw_if_index[sw_if_index]];
347 0 : send_vxlan_tunnel_v2_details (t, reg, mp->context);
348 : }
349 : }
350 :
351 : #include <vxlan/vxlan.api.c>
352 : static clib_error_t *
353 559 : vxlan_api_hookup (vlib_main_t * vm)
354 : {
355 559 : api_main_t *am = vlibapi_get_main ();
356 :
357 559 : vl_api_increase_msg_trace_size (am, VL_API_VXLAN_ADD_DEL_TUNNEL,
358 : 16 * sizeof (u32));
359 :
360 : /*
361 : * Set up the (msg_name, crc, message-id) table
362 : */
363 559 : msg_id_base = setup_message_id_table ();
364 :
365 559 : return 0;
366 : }
367 :
368 1119 : VLIB_API_INIT_FUNCTION (vxlan_api_hookup);
369 :
370 : /*
371 : * fd.io coding-style-patch-verification: ON
372 : *
373 : * Local Variables:
374 : * eval: (c-set-style "gnu")
375 : * End:
376 : */
|
