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1 | /* authd/providers/opm.c - small open proxy monitor | |
2 | * Copyright (c) 2016 Elizabeth Myers <elizabeth@interlinked.me> | |
3 | * | |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice is present in all copies. | |
7 | * | |
8 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
9 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
10 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
11 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, | |
12 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
13 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
14 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
15 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
16 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
17 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
18 | * POSSIBILITY OF SUCH DAMAGE. | |
19 | */ | |
20 | ||
21 | #include "rb_lib.h" | |
22 | #include "stdinc.h" | |
23 | #include "setup.h" | |
24 | #include "authd.h" | |
25 | #include "notice.h" | |
26 | #include "provider.h" | |
27 | ||
28 | #define OPM_READSIZE 128 | |
29 | ||
30 | typedef enum protocol_t | |
31 | { | |
32 | PROTO_NONE, | |
33 | PROTO_SOCKS4, | |
34 | PROTO_SOCKS5, | |
35 | } protocol_t; | |
36 | ||
37 | struct opm_lookup | |
38 | { | |
39 | rb_dlink_list scans; /* List of scans */ | |
40 | }; | |
41 | ||
42 | struct opm_proxy | |
43 | { | |
44 | const char *note; | |
45 | protocol_t proto; | |
46 | uint16_t port; | |
47 | }; | |
48 | ||
49 | struct opm_scan | |
50 | { | |
51 | struct auth_client *auth; | |
52 | ||
53 | struct opm_proxy *proxy; | |
54 | rb_fde_t *F; /* fd for scan */ | |
55 | ||
56 | rb_dlink_node node; | |
57 | }; | |
58 | ||
59 | struct opm_listener | |
60 | { | |
61 | char ip[HOSTIPLEN]; | |
62 | uint16_t port; | |
63 | struct rb_sockaddr_storage addr; | |
64 | rb_fde_t *F; | |
65 | }; | |
66 | ||
67 | /* Proxies that we scan for */ | |
68 | static struct opm_proxy opm_proxy_scans[] = | |
69 | { | |
70 | { "socks4-1080", PROTO_SOCKS4, 1080 }, | |
71 | { "socks5-1080", PROTO_SOCKS5, 1080 }, | |
72 | { "socks4-80", PROTO_SOCKS4, 80 }, | |
73 | { "socks5-80", PROTO_SOCKS5, 80 }, | |
74 | { "socks4-8080", PROTO_SOCKS4, 8080 }, | |
75 | { "socks5-8080", PROTO_SOCKS5, 8080 }, | |
76 | { NULL, PROTO_NONE, 0 } | |
77 | }; | |
78 | ||
79 | ||
80 | static ACCB accept_opm; | |
81 | static PF read_opm_reply; | |
82 | ||
83 | static CNCB socks4_connected; | |
84 | static CNCB socks5_connected; | |
85 | ||
86 | static void opm_cancel(struct auth_client *auth); | |
87 | ||
88 | static int opm_timeout = 5; | |
89 | static bool opm_enable = false; | |
90 | ||
91 | #define LISTEN_IPV4 0 | |
92 | #define LISTEN_IPV6 1 | |
93 | ||
94 | /* IPv4 and IPv6 */ | |
95 | static struct opm_listener listeners[2]; | |
96 | ||
97 | ||
98 | static void | |
99 | read_opm_reply(rb_fde_t *F, void *data) | |
100 | { | |
101 | struct auth_client *auth = data; | |
102 | struct opm_lookup *lookup; | |
103 | char readbuf[OPM_READSIZE]; | |
104 | ssize_t len; | |
105 | ||
106 | if(auth == NULL || (lookup = auth->data[PROVIDER_OPM]) == NULL) | |
107 | { | |
108 | rb_close(F); | |
109 | return; | |
110 | } | |
111 | ||
112 | if((len = rb_read(F, readbuf, sizeof(readbuf))) < 0 && rb_ignore_errno(errno)) | |
113 | { | |
114 | rb_setselect(F, RB_SELECT_READ, read_opm_reply, auth); | |
115 | return; | |
116 | } | |
117 | else if(len <= 0) | |
118 | { | |
119 | /* Dead */ | |
120 | rb_close(F); | |
121 | return; | |
122 | } | |
123 | ||
124 | for(struct opm_proxy *proxy = opm_proxy_scans; proxy->note != NULL; proxy++) | |
125 | { | |
126 | if(strncmp(proxy->note, readbuf, sizeof(readbuf)) == 0) | |
127 | { | |
128 | rb_dlink_node *ptr, *nptr; | |
129 | ||
130 | /* Cancel outstanding lookups */ | |
131 | RB_DLINK_FOREACH_SAFE(ptr, nptr, lookup->scans.head) | |
132 | { | |
133 | struct opm_scan *scan = ptr->data; | |
134 | ||
135 | rb_close(scan->F); | |
136 | rb_free(scan); | |
137 | } | |
138 | ||
139 | /* No longer needed, client is going away */ | |
140 | rb_free(lookup); | |
141 | ||
142 | reject_client(auth, PROVIDER_OPM, readbuf, "Open proxy detected"); | |
143 | break; | |
144 | } | |
145 | } | |
146 | ||
147 | rb_close(F); | |
148 | } | |
149 | ||
150 | static void | |
151 | accept_opm(rb_fde_t *F, int status, struct sockaddr *addr, rb_socklen_t len, void *data) | |
152 | { | |
153 | struct auth_client *auth = NULL; | |
154 | struct opm_listener *listener = data; | |
155 | struct rb_sockaddr_storage localaddr; | |
156 | unsigned int llen = sizeof(struct rb_sockaddr_storage); | |
157 | rb_dictionary_iter iter; | |
158 | ||
159 | if(status != 0 || listener == NULL) | |
160 | { | |
161 | rb_close(F); | |
162 | return; | |
163 | } | |
164 | ||
165 | if(getsockname(rb_get_fd(F), (struct sockaddr *)&localaddr, &llen)) | |
166 | { | |
167 | /* This can happen if the client goes away after accept */ | |
168 | rb_close(F); | |
169 | return; | |
170 | } | |
171 | ||
172 | /* Correlate connection with client(s) */ | |
173 | RB_DICTIONARY_FOREACH(auth, &iter, auth_clients) | |
174 | { | |
175 | if(GET_SS_FAMILY(&auth->c_addr) != GET_SS_FAMILY(&localaddr)) | |
176 | continue; | |
177 | ||
178 | /* Compare the addresses */ | |
179 | switch(GET_SS_FAMILY(&localaddr)) | |
180 | { | |
181 | case AF_INET: | |
182 | { | |
183 | struct sockaddr_in *s = (struct sockaddr_in *)&localaddr, *c = (struct sockaddr_in *)&auth->c_addr; | |
184 | ||
185 | if(s->sin_addr.s_addr == c->sin_addr.s_addr) | |
186 | { | |
187 | /* Match... check if it's real */ | |
188 | rb_setselect(F, RB_SELECT_READ, read_opm_reply, auth); | |
189 | return; | |
190 | } | |
191 | break; | |
192 | } | |
193 | #ifdef RB_IPV6 | |
194 | case AF_INET6: | |
195 | { | |
196 | struct sockaddr_in6 *s = (struct sockaddr_in6 *)&localaddr, *c = (struct sockaddr_in6 *)&auth->c_addr; | |
197 | ||
198 | if(IN6_ARE_ADDR_EQUAL(&s->sin6_addr, &c->sin6_addr)) | |
199 | { | |
200 | rb_setselect(F, RB_SELECT_READ, read_opm_reply, auth); | |
201 | return; | |
202 | } | |
203 | break; | |
204 | } | |
205 | #endif | |
206 | default: | |
207 | warn_opers(L_CRIT, "OPM: unknown address type in listen function"); | |
208 | exit(EX_PROVIDER_ERROR); | |
209 | } | |
210 | } | |
211 | ||
212 | /* We don't care about the socket if we get here */ | |
213 | rb_close(F); | |
214 | } | |
215 | ||
216 | /* Scanners */ | |
217 | ||
218 | static void | |
219 | socks4_connected(rb_fde_t *F, int error, void *data) | |
220 | { | |
221 | struct opm_scan *scan = data; | |
222 | struct opm_lookup *lookup; | |
223 | struct auth_client *auth; | |
224 | uint8_t sendbuf[9]; /* Size we're building */ | |
225 | uint8_t *c = sendbuf; | |
226 | ssize_t ret; | |
227 | ||
228 | if(scan == NULL || (auth = scan->auth) == NULL || (lookup = auth->data[PROVIDER_OPM]) == NULL) | |
229 | return; | |
230 | ||
231 | if(error || !opm_enable) | |
232 | goto end; | |
233 | ||
234 | memcpy(c, "\x04\x01", 2); c += 2; /* Socks version 4, connect command */ | |
235 | ||
236 | switch(GET_SS_FAMILY(&auth->c_addr)) | |
237 | { | |
238 | case AF_INET: | |
239 | if(listeners[LISTEN_IPV4].F == NULL) | |
240 | /* They cannot respond to us */ | |
241 | goto end; | |
242 | ||
243 | memcpy(c, &(((struct sockaddr_in *)&listeners[LISTEN_IPV4].addr)->sin_port), 2); c += 2; /* Port */ | |
244 | memcpy(c, &(((struct sockaddr_in *)&listeners[LISTEN_IPV4].addr)->sin_addr.s_addr), 4); c += 4; /* Address */ | |
245 | break; | |
246 | #ifdef RB_IPV6 | |
247 | case AF_INET6: | |
248 | /* socks4 doesn't support IPv6 */ | |
249 | #endif | |
250 | default: | |
251 | goto end; | |
252 | } | |
253 | ||
254 | *c = '\x00'; /* No userid */ | |
255 | ||
256 | /* Send header */ | |
257 | if(rb_write(scan->F, sendbuf, sizeof(sendbuf)) < 0) | |
258 | goto end; | |
259 | ||
260 | /* Send note */ | |
261 | if(rb_write(scan->F, scan->proxy->note, strlen(scan->proxy->note) + 1) < 0) | |
262 | goto end; | |
263 | ||
264 | end: | |
265 | rb_close(scan->F); | |
266 | rb_dlinkDelete(&scan->node, &lookup->scans); | |
267 | rb_free(scan); | |
268 | } | |
269 | ||
270 | static void | |
271 | socks5_connected(rb_fde_t *F, int error, void *data) | |
272 | { | |
273 | struct opm_scan *scan = data; | |
274 | struct opm_lookup *lookup; | |
275 | struct opm_listener *listener; | |
276 | struct auth_client *auth; | |
277 | uint8_t sendbuf[25]; /* Size we're building */ | |
278 | uint8_t *c = sendbuf; | |
279 | ssize_t ret; | |
280 | ||
281 | if(scan == NULL || (auth = scan->auth) == NULL || (lookup = auth->data[PROVIDER_OPM]) == NULL) | |
282 | return; | |
283 | ||
284 | if(error || !opm_enable) | |
285 | goto end; | |
286 | ||
287 | /* Build the version header and socks request | |
288 | * version header (3 bytes): version, number of auth methods, auth type (0 for none) | |
289 | * connect req (3 bytes): version, command (1 = connect), reserved (0) | |
290 | */ | |
291 | memcpy(c, "\x05\x01\x00\x05\x01\x00", 6); c += 6; | |
292 | ||
293 | switch(GET_SS_FAMILY(&auth->c_addr)) | |
294 | { | |
295 | case AF_INET: | |
296 | listener = &listeners[LISTEN_IPV4]; | |
297 | if(!listener->F) | |
298 | goto end; | |
299 | ||
300 | *(c++) = '\x01'; /* Address type (1 = IPv4) */ | |
301 | memcpy(c, &(((struct sockaddr_in *)&listener->addr)->sin_addr.s_addr), 4); c += 4;/* Address */ | |
302 | memcpy(c, &(((struct sockaddr_in *)&listener->addr)->sin_port), 2); c += 2; /* Port */ | |
303 | break; | |
304 | #ifdef RB_IPV6 | |
305 | case AF_INET6: | |
306 | listener = &listeners[LISTEN_IPV6]; | |
307 | if(!listener->F) | |
308 | goto end; | |
309 | ||
310 | *(c++) = '\x04'; /* Address type (4 = IPv6) */ | |
311 | memcpy(c, ((struct sockaddr_in6 *)&listener->addr)->sin6_addr.s6_addr, 16); c += 16; /* Address */ | |
312 | memcpy(c, &(((struct sockaddr_in6 *)&listener->addr)->sin6_port), 2); c += 2; /* Port */ | |
313 | break; | |
314 | #endif | |
315 | default: | |
316 | goto end; | |
317 | } | |
318 | ||
319 | /* Send header */ | |
320 | if(rb_write(scan->F, sendbuf, (size_t)(sendbuf - c)) <= 0) | |
321 | goto end; | |
322 | ||
323 | /* Now the note in a separate write */ | |
324 | if(rb_write(scan->F, scan->proxy->note, strlen(scan->proxy->note) + 1) <= 0) | |
325 | goto end; | |
326 | ||
327 | end: | |
328 | rb_close(scan->F); | |
329 | rb_dlinkDelete(&scan->node, &lookup->scans); | |
330 | rb_free(scan); | |
331 | } | |
332 | ||
333 | /* Establish connections */ | |
334 | static inline void | |
335 | establish_connection(struct auth_client *auth, struct opm_proxy *proxy) | |
336 | { | |
337 | struct opm_lookup *lookup = auth->data[PROVIDER_OPM]; | |
338 | struct opm_listener *listener; | |
339 | struct opm_scan *scan = rb_malloc(sizeof(struct opm_scan)); | |
340 | struct rb_sockaddr_storage c_a, l_a; | |
341 | int opt = 1; | |
342 | CNCB *callback; | |
343 | ||
344 | switch(proxy->proto) | |
345 | { | |
346 | case PROTO_SOCKS4: | |
347 | #ifdef RB_IPV6 | |
348 | if(GET_SS_FAMILY(&auth->c_addr) == AF_INET6) | |
349 | { | |
350 | rb_free(scan); | |
351 | return; | |
352 | } | |
353 | #endif | |
354 | callback = socks4_connected; | |
355 | break; | |
356 | case PROTO_SOCKS5: | |
357 | callback = socks5_connected; | |
358 | break; | |
359 | default: | |
360 | return; | |
361 | } | |
362 | ||
363 | #ifdef RB_IPV6 | |
364 | if(GET_SS_FAMILY(&auth->c_addr) == AF_INET6) | |
365 | listener = &listeners[LISTEN_IPV6]; | |
366 | else | |
367 | #endif | |
368 | listener = &listeners[LISTEN_IPV4]; | |
369 | ||
370 | c_a = auth->c_addr; /* Client */ | |
371 | l_a = listener->addr; /* Listener */ | |
372 | ||
373 | scan->auth = auth; | |
374 | scan->proxy = proxy; | |
375 | if((scan->F = rb_socket(GET_SS_FAMILY(&auth->c_addr), SOCK_STREAM, 0, proxy->note)) == NULL) | |
376 | { | |
377 | warn_opers(L_CRIT, "OPM: could not create OPM socket (proto %s): %s", proxy->note, strerror(errno)); | |
378 | rb_free(scan); | |
379 | return; | |
380 | } | |
381 | ||
382 | /* Disable Nagle's algorithim - buffering could affect scans */ | |
383 | (void)setsockopt(rb_get_fd(scan->F), IPPROTO_TCP, TCP_NODELAY, (char *)&opt, sizeof(opt)); | |
384 | ||
385 | SET_SS_PORT(&l_a, 0); | |
386 | SET_SS_PORT(&c_a, htons(proxy->port)); | |
387 | ||
388 | rb_dlinkAdd(scan, &scan->node, &lookup->scans); | |
389 | rb_connect_tcp(scan->F, | |
390 | (struct sockaddr *)&c_a, | |
391 | (struct sockaddr *)&l_a, | |
392 | GET_SS_LEN(&l_a), | |
393 | callback, scan, opm_timeout); | |
394 | } | |
395 | ||
396 | static void | |
397 | opm_destroy(void) | |
398 | { | |
399 | struct auth_client *auth; | |
400 | rb_dictionary_iter iter; | |
401 | ||
402 | /* Nuke all opm lookups */ | |
403 | RB_DICTIONARY_FOREACH(auth, &iter, auth_clients) | |
404 | { | |
405 | opm_cancel(auth); | |
406 | } | |
407 | } | |
408 | ||
409 | static bool | |
410 | opm_start(struct auth_client *auth) | |
411 | { | |
412 | struct opm_lookup *lookup = rb_malloc(sizeof(struct opm_lookup)); | |
413 | ||
414 | if(!opm_enable) | |
415 | { | |
416 | notice_client(auth->cid, "*** Proxy scanning disabled, not scanning"); | |
417 | return true; | |
418 | } | |
419 | ||
420 | auth->data[PROVIDER_OPM] = lookup = rb_malloc(sizeof(struct opm_lookup)); | |
421 | auth->timeout[PROVIDER_OPM] = rb_current_time() + opm_timeout; | |
422 | ||
423 | for(struct opm_proxy *proxy = opm_proxy_scans; proxy->note != NULL; proxy++) | |
424 | establish_connection(auth, proxy); | |
425 | ||
426 | notice_client(auth->cid, "*** Scanning for open proxies..."); | |
427 | set_provider_on(auth, PROVIDER_OPM); | |
428 | ||
429 | return true; | |
430 | } | |
431 | ||
432 | static void | |
433 | opm_cancel(struct auth_client *auth) | |
434 | { | |
435 | struct opm_lookup *lookup = auth->data[PROVIDER_OPM]; | |
436 | ||
437 | if(lookup != NULL) | |
438 | { | |
439 | rb_dlink_node *ptr, *nptr; | |
440 | ||
441 | RB_DLINK_FOREACH_SAFE(ptr, nptr, lookup->scans.head) | |
442 | { | |
443 | struct opm_scan *scan = ptr->data; | |
444 | ||
445 | rb_close(scan->F); | |
446 | rb_free(scan); | |
447 | } | |
448 | ||
449 | rb_free(lookup); | |
450 | provider_done(auth, PROVIDER_OPM); | |
451 | } | |
452 | } | |
453 | ||
454 | static void | |
455 | add_conf_opm_timeout(const char *key __unused, int parc __unused, const char **parv) | |
456 | { | |
457 | int timeout = atoi(parv[0]); | |
458 | ||
459 | if(timeout < 0) | |
460 | { | |
461 | warn_opers(L_CRIT, "opm: opm timeout < 0 (value: %d)", timeout); | |
462 | return; | |
463 | } | |
464 | ||
465 | opm_timeout = timeout; | |
466 | } | |
467 | ||
468 | static void | |
469 | set_opm_enabled(const char *key __unused, int parc __unused, const char **parv) | |
470 | { | |
471 | if(listeners[LISTEN_IPV4].F != NULL || listeners[LISTEN_IPV6].F != NULL) | |
472 | opm_enable = (*parv[0] == '1'); | |
473 | else | |
474 | /* No listener, no point... */ | |
475 | opm_enable = false; | |
476 | } | |
477 | ||
478 | static void | |
479 | set_opm_listener(const char *key __unused, int parc __unused, const char **parv) | |
480 | { | |
481 | struct auth_client *auth; | |
482 | struct rb_sockaddr_storage addr; | |
483 | struct opm_listener *listener; | |
484 | int port = atoi(parv[1]), opt = 1; | |
485 | rb_dictionary_iter iter; | |
486 | rb_fde_t *F; | |
487 | size_t i; | |
488 | ||
489 | if(port > 65535 || port <= 0 || !rb_inet_pton_sock(parv[0], (struct sockaddr *)&addr)) | |
490 | { | |
491 | warn_opers(L_CRIT, "OPM: got a bad listener: %s:%s", parv[0], parv[1]); | |
492 | exit(EX_PROVIDER_ERROR); | |
493 | } | |
494 | ||
495 | #ifdef RB_IPV6 | |
496 | if(GET_SS_FAMILY(&addr) == AF_INET6) | |
497 | listener = &listeners[LISTEN_IPV6]; | |
498 | else | |
499 | #endif | |
500 | listener = &listeners[LISTEN_IPV4]; | |
501 | ||
502 | if(strcmp(listener->ip, parv[0]) == 0 || listener->port == port) | |
503 | return; | |
504 | ||
505 | if((F = rb_socket(GET_SS_FAMILY(&addr), SOCK_STREAM, 0, "OPM listener socket")) == NULL) | |
506 | { | |
507 | /* This shouldn't fail, or we have problems... */ | |
508 | warn_opers(L_CRIT, "OPM: cannot create socket: %s", strerror(errno)); | |
509 | exit(EX_PROVIDER_ERROR); | |
510 | } | |
511 | ||
512 | if(setsockopt(rb_get_fd(F), SOL_SOCKET, SO_REUSEADDR, (char *)&opt, sizeof(opt))) | |
513 | { | |
514 | /* This shouldn't fail either... */ | |
515 | warn_opers(L_CRIT, "OPM: cannot set options on socket: %s", strerror(errno)); | |
516 | exit(EX_PROVIDER_ERROR); | |
517 | } | |
518 | ||
519 | /* Set up ports for binding */ | |
520 | #ifdef RB_IPV6 | |
521 | if(GET_SS_FAMILY(&addr) == AF_INET6) | |
522 | ((struct sockaddr_in6 *)&addr)->sin6_port = htons(port); | |
523 | else | |
524 | #endif | |
525 | ((struct sockaddr_in *)&addr)->sin_port = htons(port); | |
526 | ||
527 | if(bind(rb_get_fd(F), (struct sockaddr *)&addr, GET_SS_LEN(&addr))) | |
528 | { | |
529 | /* Shit happens, let's not cripple authd over this */ | |
530 | warn_opers(L_WARN, "OPM: cannot bind on socket: %s", strerror(errno)); | |
531 | rb_close(F); | |
532 | return; | |
533 | } | |
534 | ||
535 | if(rb_listen(F, SOMAXCONN, false)) /* deferred accept could interfere with detection */ | |
536 | { | |
537 | warn_opers(L_WARN, "OPM: cannot listen on socket: %s", strerror(errno)); | |
538 | rb_close(F); | |
539 | return; | |
540 | } | |
541 | ||
542 | /* From this point forward we assume we have a listener */ | |
543 | ||
544 | if(listener->F != NULL) | |
545 | /* Close old listener */ | |
546 | rb_close(listener->F); | |
547 | ||
548 | listener->F = F; | |
549 | ||
550 | /* Cancel old clients that may be on old stale listener | |
551 | * XXX - should rescan clients that need it | |
552 | */ | |
553 | RB_DICTIONARY_FOREACH(auth, &iter, auth_clients) | |
554 | { | |
555 | opm_cancel(auth); | |
556 | } | |
557 | ||
558 | /* Copy data */ | |
559 | rb_strlcpy(listener->ip, parv[0], sizeof(listener->ip)); | |
560 | listener->port = (uint16_t)port; | |
561 | listener->addr = addr; | |
562 | ||
563 | opm_enable = true; /* Implicitly set this to true for now if we have a listener */ | |
564 | rb_accept_tcp(listener->F, NULL, accept_opm, listener); | |
565 | } | |
566 | ||
567 | struct auth_opts_handler opm_options[] = | |
568 | { | |
569 | { "opm_timeout", 1, add_conf_opm_timeout }, | |
570 | { "opm_enabled", 1, set_opm_enabled }, | |
571 | { "opm_listener", 2, set_opm_listener }, | |
572 | { NULL, 0, NULL }, | |
573 | }; | |
574 | ||
575 | struct auth_provider opm_provider = | |
576 | { | |
577 | .id = PROVIDER_OPM, | |
578 | .destroy = opm_destroy, | |
579 | .start = opm_start, | |
580 | .cancel = opm_cancel, | |
581 | .timeout = opm_cancel, | |
582 | .opt_handlers = opm_options, | |
583 | }; |