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2fb975da TT |
1 | /* strongSwan VICI protocol implementation for NHRP |
2 | * Copyright (c) 2014-2015 Timo Teräs | |
3 | * | |
4 | * This file is free software: you may copy, redistribute and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation, either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | */ | |
9 | ||
b45ac5f5 DL |
10 | #ifdef HAVE_CONFIG_H |
11 | #include "config.h" | |
12 | #endif | |
13 | ||
2fb975da TT |
14 | #include <string.h> |
15 | #include <sys/socket.h> | |
16 | #include <sys/un.h> | |
17 | ||
18 | #include "thread.h" | |
19 | #include "zbuf.h" | |
20 | #include "log.h" | |
aed07011 | 21 | #include "lib_errors.h" |
2fb975da | 22 | |
aed07011 | 23 | #include "nhrpd.h" |
2fb975da | 24 | #include "vici.h" |
aed07011 | 25 | #include "nhrp_errors.h" |
2fb975da TT |
26 | |
27 | #define ERRNO_IO_RETRY(EN) (((EN) == EAGAIN) || ((EN) == EWOULDBLOCK) || ((EN) == EINTR)) | |
28 | ||
29 | struct blob { | |
30 | char *ptr; | |
31 | int len; | |
32 | }; | |
33 | ||
34 | static int blob_equal(const struct blob *b, const char *str) | |
35 | { | |
996c9314 LB |
36 | if (!b || b->len != (int)strlen(str)) |
37 | return 0; | |
2fb975da TT |
38 | return memcmp(b->ptr, str, b->len) == 0; |
39 | } | |
40 | ||
41 | static int blob2buf(const struct blob *b, char *buf, size_t n) | |
42 | { | |
996c9314 LB |
43 | if (!b || b->len >= (int)n) |
44 | return 0; | |
2fb975da TT |
45 | memcpy(buf, b->ptr, b->len); |
46 | buf[b->len] = 0; | |
47 | return 1; | |
48 | } | |
49 | ||
50 | struct vici_conn { | |
51 | struct thread *t_reconnect, *t_read, *t_write; | |
52 | struct zbuf ibuf; | |
53 | struct zbuf_queue obuf; | |
54 | int fd; | |
55 | uint8_t ibuf_data[VICI_MAX_MSGLEN]; | |
56 | }; | |
57 | ||
58 | struct vici_message_ctx { | |
59 | const char *sections[8]; | |
60 | int nsections; | |
61 | }; | |
62 | ||
cc9f21da | 63 | static void vici_reconnect(struct thread *t); |
2fb975da TT |
64 | static void vici_submit_request(struct vici_conn *vici, const char *name, ...); |
65 | ||
66 | static void vici_zbuf_puts(struct zbuf *obuf, const char *str) | |
67 | { | |
68 | size_t len = strlen(str); | |
69 | zbuf_put8(obuf, len); | |
70 | zbuf_put(obuf, str, len); | |
71 | } | |
72 | ||
73 | static void vici_connection_error(struct vici_conn *vici) | |
74 | { | |
75 | nhrp_vc_reset(); | |
76 | ||
77 | THREAD_OFF(vici->t_read); | |
78 | THREAD_OFF(vici->t_write); | |
79 | zbuf_reset(&vici->ibuf); | |
80 | zbufq_reset(&vici->obuf); | |
81 | ||
82 | close(vici->fd); | |
83 | vici->fd = -1; | |
ffa2c898 | 84 | thread_add_timer(master, vici_reconnect, vici, 2, &vici->t_reconnect); |
2fb975da TT |
85 | } |
86 | ||
996c9314 LB |
87 | static void vici_parse_message(struct vici_conn *vici, struct zbuf *msg, |
88 | void (*parser)(struct vici_message_ctx *ctx, | |
89 | enum vici_type_t msgtype, | |
90 | const struct blob *key, | |
91 | const struct blob *val), | |
92 | struct vici_message_ctx *ctx) | |
2fb975da TT |
93 | { |
94 | uint8_t *type; | |
996c9314 LB |
95 | struct blob key = {0}; |
96 | struct blob val = {0}; | |
2fb975da TT |
97 | |
98 | while ((type = zbuf_may_pull(msg, uint8_t)) != NULL) { | |
99 | switch (*type) { | |
100 | case VICI_SECTION_START: | |
101 | key.len = zbuf_get8(msg); | |
102 | key.ptr = zbuf_pulln(msg, key.len); | |
996c9314 LB |
103 | debugf(NHRP_DEBUG_VICI, "VICI: Section start '%.*s'", |
104 | key.len, key.ptr); | |
2fb975da TT |
105 | parser(ctx, *type, &key, NULL); |
106 | ctx->nsections++; | |
107 | break; | |
108 | case VICI_SECTION_END: | |
109 | debugf(NHRP_DEBUG_VICI, "VICI: Section end"); | |
110 | parser(ctx, *type, NULL, NULL); | |
111 | ctx->nsections--; | |
112 | break; | |
113 | case VICI_KEY_VALUE: | |
114 | key.len = zbuf_get8(msg); | |
115 | key.ptr = zbuf_pulln(msg, key.len); | |
116 | val.len = zbuf_get_be16(msg); | |
117 | val.ptr = zbuf_pulln(msg, val.len); | |
996c9314 LB |
118 | debugf(NHRP_DEBUG_VICI, "VICI: Key '%.*s'='%.*s'", |
119 | key.len, key.ptr, val.len, val.ptr); | |
2fb975da TT |
120 | parser(ctx, *type, &key, &val); |
121 | break; | |
122 | case VICI_LIST_START: | |
123 | key.len = zbuf_get8(msg); | |
124 | key.ptr = zbuf_pulln(msg, key.len); | |
996c9314 LB |
125 | debugf(NHRP_DEBUG_VICI, "VICI: List start '%.*s'", |
126 | key.len, key.ptr); | |
2fb975da TT |
127 | break; |
128 | case VICI_LIST_ITEM: | |
129 | val.len = zbuf_get_be16(msg); | |
130 | val.ptr = zbuf_pulln(msg, val.len); | |
996c9314 LB |
131 | debugf(NHRP_DEBUG_VICI, "VICI: List item: '%.*s'", |
132 | val.len, val.ptr); | |
2fb975da TT |
133 | parser(ctx, *type, &key, &val); |
134 | break; | |
135 | case VICI_LIST_END: | |
136 | debugf(NHRP_DEBUG_VICI, "VICI: List end"); | |
137 | break; | |
2fb975da TT |
138 | } |
139 | } | |
140 | } | |
141 | ||
142 | struct handle_sa_ctx { | |
143 | struct vici_message_ctx msgctx; | |
144 | int event; | |
145 | int child_ok; | |
146 | int kill_ikesa; | |
147 | uint32_t child_uniqueid, ike_uniqueid; | |
148 | struct { | |
149 | union sockunion host; | |
150 | struct blob id, cert; | |
151 | } local, remote; | |
152 | }; | |
153 | ||
996c9314 LB |
154 | static void parse_sa_message(struct vici_message_ctx *ctx, |
155 | enum vici_type_t msgtype, const struct blob *key, | |
156 | const struct blob *val) | |
2fb975da | 157 | { |
996c9314 LB |
158 | struct handle_sa_ctx *sactx = |
159 | container_of(ctx, struct handle_sa_ctx, msgctx); | |
2fb975da TT |
160 | struct nhrp_vc *vc; |
161 | char buf[512]; | |
162 | ||
163 | switch (msgtype) { | |
164 | case VICI_SECTION_START: | |
165 | if (ctx->nsections == 3) { | |
166 | /* Begin of child-sa section, reset child vars */ | |
167 | sactx->child_uniqueid = 0; | |
168 | sactx->child_ok = 0; | |
169 | } | |
170 | break; | |
171 | case VICI_SECTION_END: | |
172 | if (ctx->nsections == 3) { | |
173 | /* End of child-sa section, update nhrp_vc */ | |
174 | int up = sactx->child_ok || sactx->event == 1; | |
175 | if (up) { | |
996c9314 LB |
176 | vc = nhrp_vc_get(&sactx->local.host, |
177 | &sactx->remote.host, up); | |
2fb975da | 178 | if (vc) { |
996c9314 LB |
179 | blob2buf(&sactx->local.id, vc->local.id, |
180 | sizeof(vc->local.id)); | |
181 | if (blob2buf(&sactx->local.cert, | |
182 | (char *)vc->local.cert, | |
183 | sizeof(vc->local.cert))) | |
184 | vc->local.certlen = | |
185 | sactx->local.cert.len; | |
186 | blob2buf(&sactx->remote.id, | |
187 | vc->remote.id, | |
188 | sizeof(vc->remote.id)); | |
189 | if (blob2buf(&sactx->remote.cert, | |
190 | (char *)vc->remote.cert, | |
191 | sizeof(vc->remote.cert))) | |
192 | vc->remote.certlen = | |
193 | sactx->remote.cert.len; | |
194 | sactx->kill_ikesa |= | |
195 | nhrp_vc_ipsec_updown( | |
196 | sactx->child_uniqueid, | |
197 | vc); | |
4cbaf956 | 198 | vc->ike_uniqueid = sactx->ike_uniqueid; |
2fb975da TT |
199 | } |
200 | } else { | |
201 | nhrp_vc_ipsec_updown(sactx->child_uniqueid, 0); | |
202 | } | |
203 | } | |
204 | break; | |
d0038397 DS |
205 | case VICI_START: |
206 | case VICI_KEY_VALUE: | |
207 | case VICI_LIST_START: | |
208 | case VICI_LIST_ITEM: | |
209 | case VICI_LIST_END: | |
210 | case VICI_END: | |
fa3bf3a2 | 211 | if (!key || !key->ptr) |
6b07f6e1 JB |
212 | break; |
213 | ||
2fb975da TT |
214 | switch (key->ptr[0]) { |
215 | case 'l': | |
996c9314 LB |
216 | if (blob_equal(key, "local-host") |
217 | && ctx->nsections == 1) { | |
2fb975da | 218 | if (blob2buf(val, buf, sizeof(buf))) |
996c9314 LB |
219 | if (str2sockunion(buf, |
220 | &sactx->local.host) | |
221 | < 0) | |
1c50c1c0 QY |
222 | flog_err( |
223 | EC_NHRP_SWAN, | |
224 | "VICI: bad strongSwan local-host: %s", | |
225 | buf); | |
996c9314 LB |
226 | } else if (blob_equal(key, "local-id") |
227 | && ctx->nsections == 1) { | |
2fb975da | 228 | sactx->local.id = *val; |
996c9314 LB |
229 | } else if (blob_equal(key, "local-cert-data") |
230 | && ctx->nsections == 1) { | |
2fb975da TT |
231 | sactx->local.cert = *val; |
232 | } | |
233 | break; | |
234 | case 'r': | |
996c9314 LB |
235 | if (blob_equal(key, "remote-host") |
236 | && ctx->nsections == 1) { | |
2fb975da | 237 | if (blob2buf(val, buf, sizeof(buf))) |
996c9314 LB |
238 | if (str2sockunion(buf, |
239 | &sactx->remote.host) | |
240 | < 0) | |
1c50c1c0 QY |
241 | flog_err( |
242 | EC_NHRP_SWAN, | |
243 | "VICI: bad strongSwan remote-host: %s", | |
244 | buf); | |
996c9314 LB |
245 | } else if (blob_equal(key, "remote-id") |
246 | && ctx->nsections == 1) { | |
2fb975da | 247 | sactx->remote.id = *val; |
996c9314 LB |
248 | } else if (blob_equal(key, "remote-cert-data") |
249 | && ctx->nsections == 1) { | |
2fb975da TT |
250 | sactx->remote.cert = *val; |
251 | } | |
252 | break; | |
253 | case 'u': | |
996c9314 LB |
254 | if (blob_equal(key, "uniqueid") |
255 | && blob2buf(val, buf, sizeof(buf))) { | |
2fb975da | 256 | if (ctx->nsections == 3) |
996c9314 LB |
257 | sactx->child_uniqueid = |
258 | strtoul(buf, NULL, 0); | |
2fb975da | 259 | else if (ctx->nsections == 1) |
996c9314 LB |
260 | sactx->ike_uniqueid = |
261 | strtoul(buf, NULL, 0); | |
2fb975da TT |
262 | } |
263 | break; | |
264 | case 's': | |
265 | if (blob_equal(key, "state") && ctx->nsections == 3) { | |
266 | sactx->child_ok = | |
996c9314 LB |
267 | (sactx->event == 0 |
268 | && (blob_equal(val, "INSTALLED") | |
269 | || blob_equal(val, "REKEYED"))); | |
2fb975da TT |
270 | } |
271 | break; | |
272 | } | |
273 | break; | |
274 | } | |
275 | } | |
276 | ||
996c9314 LB |
277 | static void parse_cmd_response(struct vici_message_ctx *ctx, |
278 | enum vici_type_t msgtype, const struct blob *key, | |
279 | const struct blob *val) | |
d139786a TT |
280 | { |
281 | char buf[512]; | |
282 | ||
283 | switch (msgtype) { | |
284 | case VICI_KEY_VALUE: | |
996c9314 LB |
285 | if (blob_equal(key, "errmsg") |
286 | && blob2buf(val, buf, sizeof(buf))) | |
2b84a521 | 287 | flog_err(EC_NHRP_SWAN, "VICI: strongSwan: %s", buf); |
d139786a | 288 | break; |
d0038397 DS |
289 | case VICI_START: |
290 | case VICI_SECTION_START: | |
291 | case VICI_SECTION_END: | |
292 | case VICI_LIST_START: | |
293 | case VICI_LIST_ITEM: | |
294 | case VICI_LIST_END: | |
295 | case VICI_END: | |
d139786a TT |
296 | break; |
297 | } | |
298 | } | |
299 | ||
2fb975da TT |
300 | static void vici_recv_sa(struct vici_conn *vici, struct zbuf *msg, int event) |
301 | { | |
302 | char buf[32]; | |
303 | struct handle_sa_ctx ctx = { | |
304 | .event = event, | |
0a939f4f | 305 | .msgctx.nsections = 0 |
2fb975da TT |
306 | }; |
307 | ||
308 | vici_parse_message(vici, msg, parse_sa_message, &ctx.msgctx); | |
309 | ||
310 | if (ctx.kill_ikesa && ctx.ike_uniqueid) { | |
996c9314 LB |
311 | debugf(NHRP_DEBUG_COMMON, "VICI: Deleting IKE_SA %u", |
312 | ctx.ike_uniqueid); | |
0d6f7fd6 | 313 | snprintf(buf, sizeof(buf), "%u", ctx.ike_uniqueid); |
996c9314 LB |
314 | vici_submit_request(vici, "terminate", VICI_KEY_VALUE, "ike-id", |
315 | strlen(buf), buf, VICI_END); | |
2fb975da TT |
316 | } |
317 | } | |
318 | ||
319 | static void vici_recv_message(struct vici_conn *vici, struct zbuf *msg) | |
320 | { | |
321 | uint32_t msglen; | |
322 | uint8_t msgtype; | |
323 | struct blob name; | |
7ea5df54 | 324 | struct vici_message_ctx ctx = { .nsections = 0 }; |
2fb975da TT |
325 | |
326 | msglen = zbuf_get_be32(msg); | |
327 | msgtype = zbuf_get8(msg); | |
328 | debugf(NHRP_DEBUG_VICI, "VICI: Message %d, %d bytes", msgtype, msglen); | |
329 | ||
330 | switch (msgtype) { | |
331 | case VICI_EVENT: | |
332 | name.len = zbuf_get8(msg); | |
333 | name.ptr = zbuf_pulln(msg, name.len); | |
334 | ||
996c9314 LB |
335 | debugf(NHRP_DEBUG_VICI, "VICI: Event '%.*s'", name.len, |
336 | name.ptr); | |
337 | if (blob_equal(&name, "list-sa") | |
338 | || blob_equal(&name, "child-updown") | |
339 | || blob_equal(&name, "child-rekey")) | |
2fb975da | 340 | vici_recv_sa(vici, msg, 0); |
996c9314 LB |
341 | else if (blob_equal(&name, "child-state-installed") |
342 | || blob_equal(&name, "child-state-rekeyed")) | |
2fb975da TT |
343 | vici_recv_sa(vici, msg, 1); |
344 | else if (blob_equal(&name, "child-state-destroying")) | |
345 | vici_recv_sa(vici, msg, 2); | |
346 | break; | |
d139786a | 347 | case VICI_CMD_RESPONSE: |
6c8ca260 | 348 | vici_parse_message(vici, msg, parse_cmd_response, &ctx); |
d139786a | 349 | break; |
2fb975da | 350 | case VICI_EVENT_UNKNOWN: |
d139786a | 351 | case VICI_CMD_UNKNOWN: |
1c50c1c0 QY |
352 | flog_err( |
353 | EC_NHRP_SWAN, | |
996c9314 | 354 | "VICI: StrongSwan does not support mandatory events (unpatched?)"); |
2fb975da TT |
355 | break; |
356 | case VICI_EVENT_CONFIRM: | |
2fb975da TT |
357 | break; |
358 | default: | |
359 | zlog_notice("VICI: Unrecognized message type %d", msgtype); | |
360 | break; | |
361 | } | |
362 | } | |
363 | ||
cc9f21da | 364 | static void vici_read(struct thread *t) |
2fb975da TT |
365 | { |
366 | struct vici_conn *vici = THREAD_ARG(t); | |
367 | struct zbuf *ibuf = &vici->ibuf; | |
368 | struct zbuf pktbuf; | |
369 | ||
996c9314 | 370 | if (zbuf_read(ibuf, vici->fd, (size_t)-1) < 0) { |
2fb975da | 371 | vici_connection_error(vici); |
cc9f21da | 372 | return; |
2fb975da TT |
373 | } |
374 | ||
375 | /* Process all messages in buffer */ | |
376 | do { | |
377 | uint32_t *hdrlen = zbuf_may_pull(ibuf, uint32_t); | |
378 | if (!hdrlen) | |
379 | break; | |
380 | if (!zbuf_may_pulln(ibuf, ntohl(*hdrlen))) { | |
381 | zbuf_reset_head(ibuf, hdrlen); | |
382 | break; | |
383 | } | |
384 | ||
385 | /* Handle packet */ | |
996c9314 LB |
386 | zbuf_init(&pktbuf, hdrlen, htonl(*hdrlen) + 4, |
387 | htonl(*hdrlen) + 4); | |
2fb975da TT |
388 | vici_recv_message(vici, &pktbuf); |
389 | } while (1); | |
390 | ||
ffa2c898 | 391 | thread_add_read(master, vici_read, vici, vici->fd, &vici->t_read); |
2fb975da TT |
392 | } |
393 | ||
cc9f21da | 394 | static void vici_write(struct thread *t) |
2fb975da TT |
395 | { |
396 | struct vici_conn *vici = THREAD_ARG(t); | |
397 | int r; | |
398 | ||
2fb975da TT |
399 | r = zbufq_write(&vici->obuf, vici->fd); |
400 | if (r > 0) { | |
ffa2c898 QY |
401 | thread_add_write(master, vici_write, vici, vici->fd, |
402 | &vici->t_write); | |
2fb975da TT |
403 | } else if (r < 0) { |
404 | vici_connection_error(vici); | |
405 | } | |
2fb975da TT |
406 | } |
407 | ||
408 | static void vici_submit(struct vici_conn *vici, struct zbuf *obuf) | |
409 | { | |
410 | if (vici->fd < 0) { | |
411 | zbuf_free(obuf); | |
412 | return; | |
413 | } | |
414 | ||
415 | zbufq_queue(&vici->obuf, obuf); | |
ffa2c898 | 416 | thread_add_write(master, vici_write, vici, vici->fd, &vici->t_write); |
2fb975da TT |
417 | } |
418 | ||
419 | static void vici_submit_request(struct vici_conn *vici, const char *name, ...) | |
420 | { | |
421 | struct zbuf *obuf; | |
422 | uint32_t *hdrlen; | |
423 | va_list va; | |
424 | size_t len; | |
425 | int type; | |
426 | ||
427 | obuf = zbuf_alloc(256); | |
996c9314 LB |
428 | if (!obuf) |
429 | return; | |
2fb975da TT |
430 | |
431 | hdrlen = zbuf_push(obuf, uint32_t); | |
432 | zbuf_put8(obuf, VICI_CMD_REQUEST); | |
433 | vici_zbuf_puts(obuf, name); | |
434 | ||
435 | va_start(va, name); | |
436 | for (type = va_arg(va, int); type != VICI_END; type = va_arg(va, int)) { | |
437 | zbuf_put8(obuf, type); | |
438 | switch (type) { | |
439 | case VICI_KEY_VALUE: | |
440 | vici_zbuf_puts(obuf, va_arg(va, const char *)); | |
441 | len = va_arg(va, size_t); | |
442 | zbuf_put_be16(obuf, len); | |
443 | zbuf_put(obuf, va_arg(va, void *), len); | |
444 | break; | |
2fb975da TT |
445 | default: |
446 | break; | |
447 | } | |
448 | } | |
449 | va_end(va); | |
450 | *hdrlen = htonl(zbuf_used(obuf) - 4); | |
451 | vici_submit(vici, obuf); | |
452 | } | |
453 | ||
454 | static void vici_register_event(struct vici_conn *vici, const char *name) | |
455 | { | |
456 | struct zbuf *obuf; | |
457 | uint32_t *hdrlen; | |
458 | uint8_t namelen; | |
459 | ||
460 | namelen = strlen(name); | |
461 | obuf = zbuf_alloc(4 + 1 + 1 + namelen); | |
996c9314 LB |
462 | if (!obuf) |
463 | return; | |
2fb975da TT |
464 | |
465 | hdrlen = zbuf_push(obuf, uint32_t); | |
466 | zbuf_put8(obuf, VICI_EVENT_REGISTER); | |
467 | zbuf_put8(obuf, namelen); | |
468 | zbuf_put(obuf, name, namelen); | |
469 | *hdrlen = htonl(zbuf_used(obuf) - 4); | |
470 | ||
471 | vici_submit(vici, obuf); | |
472 | } | |
473 | ||
40307370 PG |
474 | static bool vici_charon_filepath_done; |
475 | static bool vici_charon_not_found; | |
476 | ||
477 | static char *vici_get_charon_filepath(void) | |
478 | { | |
479 | static char buff[1200]; | |
480 | FILE *fp; | |
481 | char *ptr; | |
482 | char line[1024]; | |
483 | ||
484 | if (vici_charon_filepath_done) | |
485 | return (char *)buff; | |
486 | fp = popen("ipsec --piddir", "r"); | |
487 | if (!fp) { | |
488 | if (!vici_charon_not_found) { | |
489 | flog_err(EC_NHRP_SWAN, | |
490 | "VICI: Failed to retrieve charon file path"); | |
491 | vici_charon_not_found = true; | |
492 | } | |
493 | return NULL; | |
494 | } | |
495 | /* last line of output is used to get vici path */ | |
496 | while (fgets(line, sizeof(line), fp) != NULL) { | |
497 | ptr = strchr(line, '\n'); | |
498 | if (ptr) | |
499 | *ptr = '\0'; | |
500 | snprintf(buff, sizeof(buff), "%s/charon.vici", line); | |
501 | } | |
502 | pclose(fp); | |
503 | vici_charon_filepath_done = true; | |
504 | return buff; | |
505 | } | |
506 | ||
cc9f21da | 507 | static void vici_reconnect(struct thread *t) |
2fb975da TT |
508 | { |
509 | struct vici_conn *vici = THREAD_ARG(t); | |
510 | int fd; | |
40307370 | 511 | char *file_path; |
2fb975da | 512 | |
996c9314 | 513 | if (vici->fd >= 0) |
cc9f21da | 514 | return; |
2fb975da | 515 | |
354196c0 | 516 | fd = sock_open_unix(VICI_SOCKET); |
40307370 PG |
517 | if (fd < 0) { |
518 | file_path = vici_get_charon_filepath(); | |
519 | if (file_path) | |
520 | fd = sock_open_unix(file_path); | |
521 | } | |
2fb975da | 522 | if (fd < 0) { |
996c9314 | 523 | debugf(NHRP_DEBUG_VICI, |
15569c58 DA |
524 | "%s: failure connecting VICI socket: %s", __func__, |
525 | strerror(errno)); | |
ffa2c898 QY |
526 | thread_add_timer(master, vici_reconnect, vici, 2, |
527 | &vici->t_reconnect); | |
cc9f21da | 528 | return; |
2fb975da TT |
529 | } |
530 | ||
531 | debugf(NHRP_DEBUG_COMMON, "VICI: Connected"); | |
532 | vici->fd = fd; | |
ffa2c898 | 533 | thread_add_read(master, vici_read, vici, vici->fd, &vici->t_read); |
2fb975da TT |
534 | |
535 | /* Send event subscribtions */ | |
996c9314 LB |
536 | // vici_register_event(vici, "child-updown"); |
537 | // vici_register_event(vici, "child-rekey"); | |
2fb975da TT |
538 | vici_register_event(vici, "child-state-installed"); |
539 | vici_register_event(vici, "child-state-rekeyed"); | |
540 | vici_register_event(vici, "child-state-destroying"); | |
541 | vici_register_event(vici, "list-sa"); | |
542 | vici_submit_request(vici, "list-sas", VICI_END); | |
2fb975da TT |
543 | } |
544 | ||
545 | static struct vici_conn vici_connection; | |
546 | ||
547 | void vici_init(void) | |
548 | { | |
549 | struct vici_conn *vici = &vici_connection; | |
550 | ||
551 | vici->fd = -1; | |
552 | zbuf_init(&vici->ibuf, vici->ibuf_data, sizeof(vici->ibuf_data), 0); | |
553 | zbufq_init(&vici->obuf); | |
ffa2c898 QY |
554 | thread_add_timer_msec(master, vici_reconnect, vici, 10, |
555 | &vici->t_reconnect); | |
2fb975da TT |
556 | } |
557 | ||
558 | void vici_terminate(void) | |
559 | { | |
560 | } | |
561 | ||
083bbfae GG |
562 | void vici_terminate_vc_by_profile_name(char *profile_name) |
563 | { | |
564 | struct vici_conn *vici = &vici_connection; | |
74e5ba3a | 565 | |
58ef1668 | 566 | debugf(NHRP_DEBUG_VICI, "Terminate profile = %s", profile_name); |
083bbfae GG |
567 | vici_submit_request(vici, "terminate", VICI_KEY_VALUE, "ike", |
568 | strlen(profile_name), profile_name, VICI_END); | |
569 | } | |
570 | ||
571 | void vici_terminate_vc_by_ike_id(unsigned int ike_id) | |
4cbaf956 GG |
572 | { |
573 | struct vici_conn *vici = &vici_connection; | |
74e5ba3a RD |
574 | char ike_id_str[10]; |
575 | ||
4cbaf956 | 576 | snprintf(ike_id_str, sizeof(ike_id_str), "%d", ike_id); |
58ef1668 | 577 | debugf(NHRP_DEBUG_VICI, "Terminate ike_id_str = %s", ike_id_str); |
4cbaf956 GG |
578 | vici_submit_request(vici, "terminate", VICI_KEY_VALUE, "ike-id", |
579 | strlen(ike_id_str), ike_id_str, VICI_END); | |
580 | } | |
581 | ||
996c9314 LB |
582 | void vici_request_vc(const char *profile, union sockunion *src, |
583 | union sockunion *dst, int prio) | |
2fb975da TT |
584 | { |
585 | struct vici_conn *vici = &vici_connection; | |
586 | char buf[2][SU_ADDRSTRLEN]; | |
587 | ||
0d6f7fd6 DA |
588 | sockunion2str(src, buf[0], sizeof(buf[0])); |
589 | sockunion2str(dst, buf[1], sizeof(buf[1])); | |
2fb975da | 590 | |
996c9314 LB |
591 | vici_submit_request(vici, "initiate", VICI_KEY_VALUE, "child", |
592 | strlen(profile), profile, VICI_KEY_VALUE, "timeout", | |
593 | (size_t)2, "-1", VICI_KEY_VALUE, "async", (size_t)1, | |
594 | "1", VICI_KEY_VALUE, "init-limits", (size_t)1, | |
595 | prio ? "0" : "1", VICI_KEY_VALUE, "my-host", | |
596 | strlen(buf[0]), buf[0], VICI_KEY_VALUE, | |
597 | "other-host", strlen(buf[1]), buf[1], VICI_END); | |
2fb975da TT |
598 | } |
599 | ||
600 | int sock_open_unix(const char *path) | |
601 | { | |
602 | int ret, fd; | |
603 | struct sockaddr_un addr; | |
604 | ||
605 | fd = socket(AF_UNIX, SOCK_STREAM, 0); | |
606 | if (fd < 0) | |
607 | return -1; | |
608 | ||
6006b807 | 609 | memset(&addr, 0, sizeof(addr)); |
2fb975da | 610 | addr.sun_family = AF_UNIX; |
fa3bf3a2 | 611 | strlcpy(addr.sun_path, path, sizeof(addr.sun_path)); |
2fb975da | 612 | |
996c9314 LB |
613 | ret = connect(fd, (struct sockaddr *)&addr, |
614 | sizeof(addr.sun_family) + strlen(addr.sun_path)); | |
2fb975da TT |
615 | if (ret < 0) { |
616 | close(fd); | |
617 | return -1; | |
618 | } | |
619 | ||
6c8ca260 JB |
620 | ret = fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK); |
621 | if (ret < 0) { | |
622 | close(fd); | |
623 | return -1; | |
624 | } | |
2fb975da TT |
625 | |
626 | return fd; | |
627 | } |