2 * Copyright (c) 2020 Cisco and/or its affiliates.
3 * Copyright (c) 2020 Doc.ai and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <vnet/vnet.h>
18 #include <vlibmemory/api.h>
20 #include <vnet/format_fns.h>
21 #include <vnet/ip/ip_types_api.h>
22 #include <vlibapi/api.h>
24 #include <wireguard/wireguard.api_enum.h>
25 #include <wireguard/wireguard.api_types.h>
27 #include <wireguard/wireguard_key.h>
28 #include <wireguard/wireguard.h>
29 #include <wireguard/wireguard_if.h>
31 #define REPLY_MSG_ID_BASE wmp->msg_id_base
32 #include <wireguard/wireguard_peer.h>
33 #include <vlibapi/api_helper_macros.h>
36 vl_api_wireguard_interface_create_t_handler
37 (vl_api_wireguard_interface_create_t * mp)
39 vl_api_wireguard_interface_create_reply_t *rmp;
40 wg_main_t *wmp = &wg_main;
41 u8 private_key[NOISE_PUBLIC_KEY_LEN];
46 wg_feature_init (wmp);
48 ip_address_decode2 (&mp->interface.src_ip, &src);
51 curve25519_gen_secret (private_key);
53 clib_memcpy (private_key, mp->interface.private_key, NOISE_PUBLIC_KEY_LEN);
55 rv = wg_if_create (ntohl (mp->interface.user_instance), private_key,
56 ntohs (mp->interface.port), &src, &sw_if_index);
58 REPLY_MACRO2(VL_API_WIREGUARD_INTERFACE_CREATE_REPLY,
60 rmp->sw_if_index = htonl(sw_if_index);
65 vl_api_wireguard_interface_delete_t_handler
66 (vl_api_wireguard_interface_delete_t * mp)
68 vl_api_wireguard_interface_delete_reply_t *rmp;
69 wg_main_t *wmp = &wg_main;
72 wg_feature_init (wmp);
74 VALIDATE_SW_IF_INDEX (mp);
76 rv = wg_if_delete (ntohl (mp->sw_if_index));
78 BAD_SW_IF_INDEX_LABEL;
80 REPLY_MACRO(VL_API_WIREGUARD_INTERFACE_DELETE_REPLY);
83 typedef struct wg_deatils_walk_t_
85 vl_api_registration_t *reg;
91 wireguard_if_send_details (index_t wgii, void *data)
93 vl_api_wireguard_interface_details_t *rmp;
94 wg_deatils_walk_t *ctx = data;
96 const noise_local_t *local;
98 wgi = wg_if_get (wgii);
99 local = noise_local_get (wgi->local_idx);
101 rmp = vl_msg_api_alloc_zero (sizeof (*rmp));
102 rmp->_vl_msg_id = htons (VL_API_WIREGUARD_INTERFACE_DETAILS +
103 wg_main.msg_id_base);
105 if (ctx->show_private_key)
106 clib_memcpy (rmp->interface.private_key,
107 local->l_private, NOISE_PUBLIC_KEY_LEN);
108 clib_memcpy (rmp->interface.public_key,
109 local->l_public, NOISE_PUBLIC_KEY_LEN);
110 rmp->interface.sw_if_index = htonl (wgi->sw_if_index);
111 rmp->interface.port = htons (wgi->port);
112 ip_address_encode2 (&wgi->src_ip, &rmp->interface.src_ip);
114 rmp->context = ctx->context;
116 vl_api_send_msg (ctx->reg, (u8 *) rmp);
118 return (WALK_CONTINUE);
122 vl_api_wireguard_interface_dump_t_handler (vl_api_wireguard_interface_dump_t *
125 vl_api_registration_t *reg;
126 wg_main_t *wmp = &wg_main;
128 wg_feature_init (wmp);
130 reg = vl_api_client_index_to_registration (mp->client_index);
134 wg_deatils_walk_t ctx = {
136 .context = mp->context,
137 .show_private_key = mp->show_private_key,
140 wg_if_walk (wireguard_if_send_details, &ctx);
144 vl_api_wireguard_peer_add_t_handler (vl_api_wireguard_peer_add_t * mp)
146 vl_api_wireguard_peer_add_reply_t *rmp;
147 wg_main_t *wmp = &wg_main;
148 index_t peeri = INDEX_INVALID;
151 ip_address_t endpoint;
152 fib_prefix_t *allowed_ips = NULL;
154 VALIDATE_SW_IF_INDEX (&(mp->peer));
156 if (0 == mp->peer.n_allowed_ips)
158 rv = VNET_API_ERROR_INVALID_VALUE;
162 wg_feature_init (wmp);
164 vec_validate (allowed_ips, mp->peer.n_allowed_ips - 1);
165 ip_address_decode2 (&mp->peer.endpoint, &endpoint);
167 for (ii = 0; ii < mp->peer.n_allowed_ips; ii++)
168 ip_prefix_decode (&mp->peer.allowed_ips[ii], &allowed_ips[ii]);
170 rv = wg_peer_add (ntohl (mp->peer.sw_if_index), mp->peer.public_key,
171 ntohl (mp->peer.table_id), &ip_addr_46 (&endpoint),
172 allowed_ips, ntohs (mp->peer.port),
173 ntohs (mp->peer.persistent_keepalive), &peeri);
175 vec_free (allowed_ips);
177 BAD_SW_IF_INDEX_LABEL;
179 REPLY_MACRO2(VL_API_WIREGUARD_PEER_ADD_REPLY,
181 rmp->peer_index = ntohl (peeri);
186 vl_api_wireguard_peer_remove_t_handler (vl_api_wireguard_peer_remove_t * mp)
188 vl_api_wireguard_peer_remove_reply_t *rmp;
189 wg_main_t *wmp = &wg_main;
192 wg_feature_init (wmp);
194 rv = wg_peer_remove (ntohl (mp->peer_index));
196 REPLY_MACRO(VL_API_WIREGUARD_PEER_REMOVE_REPLY);
200 wg_api_send_peers_details (index_t peeri, void *data)
202 vl_api_wireguard_peers_details_t *rmp;
203 wg_deatils_walk_t *ctx = data;
204 const wg_peer_t *peer;
208 if (pool_is_free_index (wg_peer_pool, peeri))
209 return (WALK_CONTINUE);
211 peer = wg_peer_get (peeri);
213 n_allowed_ips = vec_len (peer->allowed_ips);
215 ss = (sizeof (*rmp) + (n_allowed_ips * sizeof (rmp->peer.allowed_ips[0])));
217 rmp = vl_msg_api_alloc_zero (ss);
219 rmp->_vl_msg_id = htons (VL_API_WIREGUARD_PEERS_DETAILS +
220 wg_main.msg_id_base);
222 rmp->peer.flags = peer->flags;
223 clib_memcpy (rmp->peer.public_key,
224 peer->remote.r_public, NOISE_PUBLIC_KEY_LEN);
226 ip_address_encode (&peer->dst.addr, IP46_TYPE_ANY, &rmp->peer.endpoint);
227 rmp->peer.port = htons (peer->dst.port);
228 rmp->peer.n_allowed_ips = n_allowed_ips;
229 rmp->peer.sw_if_index = htonl (peer->wg_sw_if_index);
232 for (ii = 0; ii < n_allowed_ips; ii++)
233 ip_prefix_encode (&peer->allowed_ips[ii], &rmp->peer.allowed_ips[ii]);
235 rmp->context = ctx->context;
237 vl_api_send_msg (ctx->reg, (u8 *) rmp);
239 return (WALK_CONTINUE);
243 vl_api_wireguard_peers_dump_t_handler (vl_api_wireguard_peers_dump_t * mp)
245 vl_api_registration_t *reg;
246 wg_main_t *wmp = &wg_main;
248 wg_feature_init (wmp);
250 reg = vl_api_client_index_to_registration (mp->client_index);
254 wg_deatils_walk_t ctx = {
256 .context = mp->context,
259 if (mp->peer_index == ~0)
260 wg_peer_walk (wg_api_send_peers_details, &ctx);
262 wg_api_send_peers_details (ntohl (mp->peer_index), &ctx);
265 static vpe_client_registration_t *
266 wg_api_client_lookup (wg_peer_t *peer, u32 client_index)
269 vpe_client_registration_t *api_client = NULL;
271 p = hash_get (peer->api_client_by_client_index, client_index);
273 api_client = vec_elt_at_index (peer->api_clients, p[0]);
279 wg_api_update_peer_api_client (index_t peeri, void *data)
281 if (pool_is_free_index (wg_peer_pool, peeri))
282 return (WALK_CONTINUE);
284 vl_api_want_wireguard_peer_events_t *mp = data;
285 wg_peer_t *peer = wg_peer_get (peeri);
287 if (ntohl (mp->sw_if_index) != ~0 &&
288 ntohl (mp->sw_if_index) != peer->wg_sw_if_index)
290 return (WALK_CONTINUE);
293 vpe_client_registration_t *api_client;
295 api_client = wg_api_client_lookup (peer, mp->client_index);
299 if (mp->enable_disable)
301 return (WALK_CONTINUE);
303 hash_unset (peer->api_client_by_client_index, api_client->client_index);
304 pool_put (peer->api_clients, api_client);
306 if (mp->enable_disable)
308 pool_get (peer->api_clients, api_client);
309 clib_memset (api_client, 0, sizeof (vpe_client_registration_t));
310 api_client->client_index = mp->client_index;
311 api_client->client_pid = mp->pid;
312 hash_set (peer->api_client_by_client_index, mp->client_index,
313 api_client - peer->api_clients);
316 return (WALK_CONTINUE);
320 vl_api_want_wireguard_peer_events_t_handler (
321 vl_api_want_wireguard_peer_events_t *mp)
323 wg_main_t *wmp = &wg_main;
324 vl_api_want_wireguard_peer_events_reply_t *rmp;
327 wg_feature_init (wmp);
329 if (mp->peer_index == ~0)
330 wg_peer_walk (wg_api_update_peer_api_client, mp);
332 wg_api_update_peer_api_client (ntohl (mp->peer_index), mp);
334 REPLY_MACRO (VL_API_WANT_WIREGUARD_PEER_EVENTS_REPLY);
338 wg_api_send_peer_event (vl_api_registration_t *rp, index_t peer_index,
341 vl_api_wireguard_peer_event_t *mp = vl_msg_api_alloc (sizeof (*mp));
342 clib_memset (mp, 0, sizeof (*mp));
344 mp->_vl_msg_id = htons (VL_API_WIREGUARD_PEER_EVENT + wg_main.msg_id_base);
345 mp->peer_index = htonl (peer_index);
348 vl_api_send_msg (rp, (u8 *) mp);
352 wg_api_peer_event (index_t peeri, wg_peer_flags flags)
354 wg_peer_t *peer = wg_peer_get (peeri);
355 vpe_client_registration_t *api_client;
356 vl_api_registration_t *rp;
358 pool_foreach (api_client, peer->api_clients)
360 rp = vl_api_client_index_to_registration (api_client->client_index);
363 wg_api_send_peer_event (rp, peeri, flags);
369 vl_api_wg_set_async_mode_t_handler (vl_api_wg_set_async_mode_t *mp)
371 wg_main_t *wmp = &wg_main;
372 vl_api_wg_set_async_mode_reply_t *rmp;
375 wg_set_async_mode (mp->async_enable);
377 REPLY_MACRO (VL_API_WG_SET_ASYNC_MODE_REPLY);
380 /* set tup the API message handling tables */
381 #include <wireguard/wireguard.api.c>
382 static clib_error_t *
383 wg_api_hookup (vlib_main_t * vm)
385 wg_main_t *wmp = &wg_main;
386 wmp->msg_id_base = setup_message_id_table ();
390 VLIB_API_INIT_FUNCTION (wg_api_hookup);
393 * fd.io coding-style-patch-verification: ON
396 * eval: (c-set-style "gnu")