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1 | /* | |
2 | * ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd). | |
3 | * s_newconf.c - code for dealing with conf stuff | |
4 | * | |
5 | * Copyright (C) 2004 Lee Hardy <lee@leeh.co.uk> | |
6 | * Copyright (C) 2004-2005 ircd-ratbox development team | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions are | |
10 | * met: | |
11 | * | |
12 | * 1.Redistributions of source code must retain the above copyright notice, | |
13 | * this list of conditions and the following disclaimer. | |
14 | * 2.Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in the | |
16 | * documentation and/or other materials provided with the distribution. | |
17 | * 3.The name of the author may not be used to endorse or promote products | |
18 | * derived from this software without specific prior written permission. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
21 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
22 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
23 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, | |
24 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
25 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
26 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
28 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
29 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
30 | * POSSIBILITY OF SUCH DAMAGE. | |
31 | */ | |
32 | ||
33 | #include "stdinc.h" | |
34 | ||
35 | #ifdef HAVE_LIBCRYPTO | |
36 | #include <openssl/evp.h> | |
37 | #include <openssl/rsa.h> | |
38 | #endif | |
39 | ||
40 | #include "ircd_defs.h" | |
41 | #include "s_conf.h" | |
42 | #include "s_newconf.h" | |
43 | #include "client.h" | |
44 | #include "s_serv.h" | |
45 | #include "send.h" | |
46 | #include "hostmask.h" | |
47 | #include "newconf.h" | |
48 | #include "hash.h" | |
49 | #include "rb_dictionary.h" | |
50 | #include "rb_radixtree.h" | |
51 | #include "s_assert.h" | |
52 | #include "logger.h" | |
53 | #include "dns.h" | |
54 | ||
55 | rb_dlink_list cluster_conf_list; | |
56 | rb_dlink_list oper_conf_list; | |
57 | rb_dlink_list server_conf_list; | |
58 | rb_dlink_list xline_conf_list; | |
59 | rb_dlink_list resv_conf_list; /* nicks only! */ | |
60 | rb_dlink_list nd_list; /* nick delay */ | |
61 | rb_dlink_list tgchange_list; | |
62 | ||
63 | rb_patricia_tree_t *tgchange_tree; | |
64 | ||
65 | static rb_bh *nd_heap = NULL; | |
66 | ||
67 | static void expire_temp_rxlines(void *unused); | |
68 | static void expire_nd_entries(void *unused); | |
69 | ||
70 | struct ev_entry *expire_nd_entries_ev = NULL; | |
71 | struct ev_entry *expire_temp_rxlines_ev = NULL; | |
72 | ||
73 | void | |
74 | init_s_newconf(void) | |
75 | { | |
76 | tgchange_tree = rb_new_patricia(PATRICIA_BITS); | |
77 | nd_heap = rb_bh_create(sizeof(struct nd_entry), ND_HEAP_SIZE, "nd_heap"); | |
78 | expire_nd_entries_ev = rb_event_addish("expire_nd_entries", expire_nd_entries, NULL, 30); | |
79 | expire_temp_rxlines_ev = rb_event_addish("expire_temp_rxlines", expire_temp_rxlines, NULL, 60); | |
80 | } | |
81 | ||
82 | void | |
83 | clear_s_newconf(void) | |
84 | { | |
85 | struct server_conf *server_p; | |
86 | rb_dlink_node *ptr; | |
87 | rb_dlink_node *next_ptr; | |
88 | ||
89 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, cluster_conf_list.head) | |
90 | { | |
91 | rb_dlinkDelete(ptr, &cluster_conf_list); | |
92 | free_remote_conf(ptr->data); | |
93 | } | |
94 | ||
95 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, oper_conf_list.head) | |
96 | { | |
97 | free_oper_conf(ptr->data); | |
98 | rb_dlinkDestroy(ptr, &oper_conf_list); | |
99 | } | |
100 | ||
101 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, server_conf_list.head) | |
102 | { | |
103 | server_p = ptr->data; | |
104 | ||
105 | if(!server_p->servers) | |
106 | { | |
107 | rb_dlinkDelete(ptr, &server_conf_list); | |
108 | free_server_conf(ptr->data); | |
109 | } | |
110 | else | |
111 | server_p->flags |= SERVER_ILLEGAL; | |
112 | } | |
113 | } | |
114 | ||
115 | void | |
116 | clear_s_newconf_bans(void) | |
117 | { | |
118 | struct ConfItem *aconf; | |
119 | rb_dlink_node *ptr, *next_ptr; | |
120 | ||
121 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, xline_conf_list.head) | |
122 | { | |
123 | aconf = ptr->data; | |
124 | ||
125 | if(aconf->hold) | |
126 | continue; | |
127 | ||
128 | free_conf(aconf); | |
129 | rb_dlinkDestroy(ptr, &xline_conf_list); | |
130 | } | |
131 | ||
132 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, resv_conf_list.head) | |
133 | { | |
134 | aconf = ptr->data; | |
135 | ||
136 | /* temporary resv */ | |
137 | if(aconf->hold) | |
138 | continue; | |
139 | ||
140 | free_conf(aconf); | |
141 | rb_dlinkDestroy(ptr, &resv_conf_list); | |
142 | } | |
143 | ||
144 | clear_resv_hash(); | |
145 | } | |
146 | ||
147 | struct remote_conf * | |
148 | make_remote_conf(void) | |
149 | { | |
150 | struct remote_conf *remote_p = rb_malloc(sizeof(struct remote_conf)); | |
151 | return remote_p; | |
152 | } | |
153 | ||
154 | void | |
155 | free_remote_conf(struct remote_conf *remote_p) | |
156 | { | |
157 | s_assert(remote_p != NULL); | |
158 | if(remote_p == NULL) | |
159 | return; | |
160 | ||
161 | rb_free(remote_p->username); | |
162 | rb_free(remote_p->host); | |
163 | rb_free(remote_p->server); | |
164 | rb_free(remote_p); | |
165 | } | |
166 | ||
167 | void | |
168 | propagate_generic(struct Client *source_p, const char *command, | |
169 | const char *target, int cap, const char *format, ...) | |
170 | { | |
171 | char buffer[BUFSIZE]; | |
172 | va_list args; | |
173 | ||
174 | va_start(args, format); | |
175 | vsnprintf(buffer, sizeof(buffer), format, args); | |
176 | va_end(args); | |
177 | ||
178 | sendto_match_servs(source_p, target, cap, NOCAPS, | |
179 | "%s %s %s", | |
180 | command, target, buffer); | |
181 | sendto_match_servs(source_p, target, CAP_ENCAP, cap, | |
182 | "ENCAP %s %s %s", | |
183 | target, command, buffer); | |
184 | } | |
185 | ||
186 | void | |
187 | cluster_generic(struct Client *source_p, const char *command, | |
188 | int cltype, int cap, const char *format, ...) | |
189 | { | |
190 | char buffer[BUFSIZE]; | |
191 | struct remote_conf *shared_p; | |
192 | va_list args; | |
193 | rb_dlink_node *ptr; | |
194 | ||
195 | va_start(args, format); | |
196 | vsnprintf(buffer, sizeof(buffer), format, args); | |
197 | va_end(args); | |
198 | ||
199 | RB_DLINK_FOREACH(ptr, cluster_conf_list.head) | |
200 | { | |
201 | shared_p = ptr->data; | |
202 | ||
203 | if(!(shared_p->flags & cltype)) | |
204 | continue; | |
205 | ||
206 | sendto_match_servs(source_p, shared_p->server, cap, NOCAPS, | |
207 | "%s %s %s", | |
208 | command, shared_p->server, buffer); | |
209 | sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, cap, | |
210 | "ENCAP %s %s %s", | |
211 | shared_p->server, command, buffer); | |
212 | } | |
213 | } | |
214 | ||
215 | struct oper_conf * | |
216 | make_oper_conf(void) | |
217 | { | |
218 | struct oper_conf *oper_p = rb_malloc(sizeof(struct oper_conf)); | |
219 | return oper_p; | |
220 | } | |
221 | ||
222 | void | |
223 | free_oper_conf(struct oper_conf *oper_p) | |
224 | { | |
225 | s_assert(oper_p != NULL); | |
226 | if(oper_p == NULL) | |
227 | return; | |
228 | ||
229 | rb_free(oper_p->username); | |
230 | rb_free(oper_p->host); | |
231 | rb_free(oper_p->name); | |
232 | rb_free(oper_p->certfp); | |
233 | ||
234 | if(oper_p->passwd) | |
235 | { | |
236 | memset(oper_p->passwd, 0, strlen(oper_p->passwd)); | |
237 | rb_free(oper_p->passwd); | |
238 | } | |
239 | ||
240 | #ifdef HAVE_LIBCRYPTO | |
241 | rb_free(oper_p->rsa_pubkey_file); | |
242 | ||
243 | if(oper_p->rsa_pubkey) | |
244 | #if (OPENSSL_VERSION_NUMBER >= 0x30000000L) | |
245 | EVP_PKEY_free(oper_p->rsa_pubkey); | |
246 | #else | |
247 | RSA_free(oper_p->rsa_pubkey); | |
248 | #endif | |
249 | #endif | |
250 | ||
251 | rb_free(oper_p); | |
252 | } | |
253 | ||
254 | struct oper_conf * | |
255 | find_oper_conf(const char *username, const char *host, const char *locip, const char *name) | |
256 | { | |
257 | struct oper_conf *oper_p; | |
258 | struct rb_sockaddr_storage ip, cip; | |
259 | char addr[HOSTLEN+1]; | |
260 | int bits, cbits; | |
261 | rb_dlink_node *ptr; | |
262 | ||
263 | parse_netmask(locip, &cip, &cbits); | |
264 | ||
265 | RB_DLINK_FOREACH(ptr, oper_conf_list.head) | |
266 | { | |
267 | oper_p = ptr->data; | |
268 | ||
269 | /* name/username doesnt match.. */ | |
270 | if(irccmp(oper_p->name, name) || !match(oper_p->username, username)) | |
271 | continue; | |
272 | ||
273 | rb_strlcpy(addr, oper_p->host, sizeof(addr)); | |
274 | ||
275 | if(parse_netmask(addr, &ip, &bits) != HM_HOST) | |
276 | { | |
277 | if(GET_SS_FAMILY(&ip) == GET_SS_FAMILY(&cip) && | |
278 | comp_with_mask_sock((struct sockaddr *)&ip, (struct sockaddr *)&cip, bits)) | |
279 | return oper_p; | |
280 | } | |
281 | ||
282 | /* we have to compare against the host as well, because its | |
283 | * valid to set a spoof to an IP, which if we only compare | |
284 | * in ip form to sockhost will not necessarily match --anfl | |
285 | */ | |
286 | if(match(oper_p->host, host)) | |
287 | return oper_p; | |
288 | } | |
289 | ||
290 | return NULL; | |
291 | } | |
292 | ||
293 | struct server_conf * | |
294 | make_server_conf(void) | |
295 | { | |
296 | struct server_conf *server_p = rb_malloc(sizeof(struct server_conf)); | |
297 | ||
298 | SET_SS_FAMILY(&server_p->connect4, AF_UNSPEC); | |
299 | SET_SS_LEN(&server_p->connect4, sizeof(struct sockaddr_in)); | |
300 | ||
301 | SET_SS_FAMILY(&server_p->bind4, AF_UNSPEC); | |
302 | SET_SS_LEN(&server_p->bind4, sizeof(struct sockaddr_in)); | |
303 | ||
304 | SET_SS_FAMILY(&server_p->connect6, AF_UNSPEC); | |
305 | SET_SS_LEN(&server_p->connect6, sizeof(struct sockaddr_in6)); | |
306 | ||
307 | SET_SS_FAMILY(&server_p->bind6, AF_UNSPEC); | |
308 | SET_SS_LEN(&server_p->bind6, sizeof(struct sockaddr_in6)); | |
309 | ||
310 | server_p->aftype = AF_UNSPEC; | |
311 | ||
312 | return server_p; | |
313 | } | |
314 | ||
315 | void | |
316 | free_server_conf(struct server_conf *server_p) | |
317 | { | |
318 | s_assert(server_p != NULL); | |
319 | if(server_p == NULL) | |
320 | return; | |
321 | ||
322 | if(!EmptyString(server_p->passwd)) | |
323 | { | |
324 | memset(server_p->passwd, 0, strlen(server_p->passwd)); | |
325 | rb_free(server_p->passwd); | |
326 | } | |
327 | ||
328 | if(!EmptyString(server_p->spasswd)) | |
329 | { | |
330 | memset(server_p->spasswd, 0, strlen(server_p->spasswd)); | |
331 | rb_free(server_p->spasswd); | |
332 | } | |
333 | ||
334 | rb_free(server_p->name); | |
335 | rb_free(server_p->connect_host); | |
336 | rb_free(server_p->bind_host); | |
337 | rb_free(server_p->class_name); | |
338 | rb_free(server_p->certfp); | |
339 | rb_free(server_p); | |
340 | } | |
341 | ||
342 | /* | |
343 | * conf_connect_dns_callback | |
344 | * inputs - pointer to struct ConfItem | |
345 | * - pointer to adns reply | |
346 | * output - none | |
347 | * side effects - called when resolver query finishes | |
348 | * if the query resulted in a successful search, hp will contain | |
349 | * a non-null pointer, otherwise hp will be null. | |
350 | * if successful save hp in the conf item it was called with | |
351 | */ | |
352 | static void | |
353 | conf_connect_dns_callback(const char *result, int status, int aftype, void *data) | |
354 | { | |
355 | struct server_conf *server_p = data; | |
356 | ||
357 | if(aftype == AF_INET) | |
358 | { | |
359 | if(status == 1) | |
360 | rb_inet_pton_sock(result, &server_p->connect4); | |
361 | ||
362 | server_p->dns_query_connect4 = 0; | |
363 | } | |
364 | else if(aftype == AF_INET6) | |
365 | { | |
366 | if(status == 1) | |
367 | rb_inet_pton_sock(result, &server_p->connect6); | |
368 | ||
369 | server_p->dns_query_connect6 = 0; | |
370 | } | |
371 | } | |
372 | ||
373 | /* | |
374 | * conf_bind_dns_callback | |
375 | * inputs - pointer to struct ConfItem | |
376 | * - pointer to adns reply | |
377 | * output - none | |
378 | * side effects - called when resolver query finishes | |
379 | * if the query resulted in a successful search, hp will contain | |
380 | * a non-null pointer, otherwise hp will be null. | |
381 | * if successful save hp in the conf item it was called with | |
382 | */ | |
383 | static void | |
384 | conf_bind_dns_callback(const char *result, int status, int aftype, void *data) | |
385 | { | |
386 | struct server_conf *server_p = data; | |
387 | ||
388 | if(aftype == AF_INET) | |
389 | { | |
390 | if(status == 1) | |
391 | rb_inet_pton_sock(result, &server_p->bind4); | |
392 | ||
393 | server_p->dns_query_bind4 = 0; | |
394 | } | |
395 | else if(aftype == AF_INET6) | |
396 | { | |
397 | if(status == 1) | |
398 | rb_inet_pton_sock(result, &server_p->bind6); | |
399 | ||
400 | server_p->dns_query_bind6 = 0; | |
401 | } | |
402 | } | |
403 | ||
404 | void | |
405 | add_server_conf(struct server_conf *server_p) | |
406 | { | |
407 | if(EmptyString(server_p->class_name)) | |
408 | { | |
409 | server_p->class_name = rb_strdup("default"); | |
410 | server_p->class = default_class; | |
411 | return; | |
412 | } | |
413 | ||
414 | server_p->class = find_class(server_p->class_name); | |
415 | ||
416 | if(server_p->class == default_class) | |
417 | { | |
418 | conf_report_error("Warning connect::class invalid for %s", | |
419 | server_p->name); | |
420 | ||
421 | rb_free(server_p->class_name); | |
422 | server_p->class_name = rb_strdup("default"); | |
423 | } | |
424 | ||
425 | if(server_p->connect_host && !strpbrk(server_p->connect_host, "*?")) | |
426 | { | |
427 | server_p->dns_query_connect4 = | |
428 | lookup_hostname(server_p->connect_host, AF_INET, conf_connect_dns_callback, server_p); | |
429 | server_p->dns_query_connect6 = | |
430 | lookup_hostname(server_p->connect_host, AF_INET6, conf_connect_dns_callback, server_p); | |
431 | } | |
432 | ||
433 | if(server_p->bind_host) | |
434 | { | |
435 | server_p->dns_query_bind4 = | |
436 | lookup_hostname(server_p->bind_host, AF_INET, conf_bind_dns_callback, server_p); | |
437 | server_p->dns_query_bind6 = | |
438 | lookup_hostname(server_p->bind_host, AF_INET6, conf_bind_dns_callback, server_p); | |
439 | } | |
440 | } | |
441 | ||
442 | struct server_conf * | |
443 | find_server_conf(const char *name) | |
444 | { | |
445 | struct server_conf *server_p; | |
446 | rb_dlink_node *ptr; | |
447 | ||
448 | RB_DLINK_FOREACH(ptr, server_conf_list.head) | |
449 | { | |
450 | server_p = ptr->data; | |
451 | ||
452 | if(ServerConfIllegal(server_p)) | |
453 | continue; | |
454 | ||
455 | if(match(name, server_p->name)) | |
456 | return server_p; | |
457 | } | |
458 | ||
459 | return NULL; | |
460 | } | |
461 | ||
462 | void | |
463 | attach_server_conf(struct Client *client_p, struct server_conf *server_p) | |
464 | { | |
465 | /* already have an attached conf */ | |
466 | if(client_p->localClient->att_sconf) | |
467 | { | |
468 | /* short circuit this special case :) */ | |
469 | if(client_p->localClient->att_sconf == server_p) | |
470 | return; | |
471 | ||
472 | detach_server_conf(client_p); | |
473 | } | |
474 | ||
475 | CurrUsers(server_p->class)++; | |
476 | ||
477 | client_p->localClient->att_sconf = server_p; | |
478 | server_p->servers++; | |
479 | } | |
480 | ||
481 | void | |
482 | detach_server_conf(struct Client *client_p) | |
483 | { | |
484 | struct server_conf *server_p = client_p->localClient->att_sconf; | |
485 | ||
486 | if(server_p == NULL) | |
487 | return; | |
488 | ||
489 | client_p->localClient->att_sconf = NULL; | |
490 | server_p->servers--; | |
491 | CurrUsers(server_p->class)--; | |
492 | ||
493 | if(ServerConfIllegal(server_p) && !server_p->servers) | |
494 | { | |
495 | /* the class this one is using may need destroying too */ | |
496 | if(MaxUsers(server_p->class) < 0 && CurrUsers(server_p->class) <= 0) | |
497 | free_class(server_p->class); | |
498 | ||
499 | rb_dlinkDelete(&server_p->node, &server_conf_list); | |
500 | free_server_conf(server_p); | |
501 | } | |
502 | } | |
503 | ||
504 | void | |
505 | set_server_conf_autoconn(struct Client *source_p, const char *name, int newval) | |
506 | { | |
507 | struct server_conf *server_p; | |
508 | ||
509 | if((server_p = find_server_conf(name)) != NULL) | |
510 | { | |
511 | if(newval) | |
512 | server_p->flags |= SERVER_AUTOCONN; | |
513 | else | |
514 | server_p->flags &= ~SERVER_AUTOCONN; | |
515 | ||
516 | sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, | |
517 | "%s has changed AUTOCONN for %s to %i", | |
518 | get_oper_name(source_p), name, newval); | |
519 | } | |
520 | else | |
521 | sendto_one_notice(source_p, ":Can't find %s", name); | |
522 | } | |
523 | ||
524 | void | |
525 | disable_server_conf_autoconn(const char *name) | |
526 | { | |
527 | struct server_conf *server_p; | |
528 | ||
529 | server_p = find_server_conf(name); | |
530 | if(server_p != NULL && server_p->flags & SERVER_AUTOCONN) | |
531 | { | |
532 | server_p->flags &= ~SERVER_AUTOCONN; | |
533 | ||
534 | sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, | |
535 | "Disabling AUTOCONN for %s because of error", | |
536 | name); | |
537 | ilog(L_SERVER, "Disabling AUTOCONN for %s because of error", | |
538 | name); | |
539 | } | |
540 | } | |
541 | ||
542 | struct ConfItem * | |
543 | find_xline(const char *gecos, int counter) | |
544 | { | |
545 | struct ConfItem *aconf; | |
546 | rb_dlink_node *ptr; | |
547 | ||
548 | RB_DLINK_FOREACH(ptr, xline_conf_list.head) | |
549 | { | |
550 | aconf = ptr->data; | |
551 | ||
552 | if(match_esc(aconf->host, gecos)) | |
553 | { | |
554 | if(counter) | |
555 | aconf->port++; | |
556 | return aconf; | |
557 | } | |
558 | } | |
559 | ||
560 | return NULL; | |
561 | } | |
562 | ||
563 | struct ConfItem * | |
564 | find_xline_mask(const char *gecos) | |
565 | { | |
566 | struct ConfItem *aconf; | |
567 | rb_dlink_node *ptr; | |
568 | ||
569 | RB_DLINK_FOREACH(ptr, xline_conf_list.head) | |
570 | { | |
571 | aconf = ptr->data; | |
572 | ||
573 | if(!irccmp(aconf->host, gecos)) | |
574 | return aconf; | |
575 | } | |
576 | ||
577 | return NULL; | |
578 | } | |
579 | ||
580 | struct ConfItem * | |
581 | find_nick_resv(const char *name) | |
582 | { | |
583 | struct ConfItem *aconf; | |
584 | rb_dlink_node *ptr; | |
585 | ||
586 | RB_DLINK_FOREACH(ptr, resv_conf_list.head) | |
587 | { | |
588 | aconf = ptr->data; | |
589 | ||
590 | if(match_esc(aconf->host, name)) | |
591 | { | |
592 | aconf->port++; | |
593 | return aconf; | |
594 | } | |
595 | } | |
596 | ||
597 | return NULL; | |
598 | } | |
599 | ||
600 | struct ConfItem * | |
601 | find_nick_resv_mask(const char *name) | |
602 | { | |
603 | struct ConfItem *aconf; | |
604 | rb_dlink_node *ptr; | |
605 | ||
606 | RB_DLINK_FOREACH(ptr, resv_conf_list.head) | |
607 | { | |
608 | aconf = ptr->data; | |
609 | ||
610 | if(!irccmp(aconf->host, name)) | |
611 | return aconf; | |
612 | } | |
613 | ||
614 | return NULL; | |
615 | } | |
616 | ||
617 | /* clean_resv_nick() | |
618 | * | |
619 | * inputs - nick | |
620 | * outputs - 1 if nick is vaild resv, 0 otherwise | |
621 | * side effects - | |
622 | */ | |
623 | int | |
624 | clean_resv_nick(const char *nick) | |
625 | { | |
626 | char tmpch; | |
627 | int as = 0; | |
628 | int q = 0; | |
629 | int ch = 0; | |
630 | ||
631 | if(*nick == '-' || IsDigit(*nick)) | |
632 | return 0; | |
633 | ||
634 | while ((tmpch = *nick++)) | |
635 | { | |
636 | if(tmpch == '?' || tmpch == '@' || tmpch == '#') | |
637 | q++; | |
638 | else if(tmpch == '*') | |
639 | as++; | |
640 | else if(IsNickChar(tmpch)) | |
641 | ch++; | |
642 | else | |
643 | return 0; | |
644 | } | |
645 | ||
646 | if(!ch && as) | |
647 | return 0; | |
648 | ||
649 | return 1; | |
650 | } | |
651 | ||
652 | /* valid_wild_card_simple() | |
653 | * | |
654 | * inputs - "thing" to test | |
655 | * outputs - 1 if enough wildcards, else 0 | |
656 | * side effects - | |
657 | */ | |
658 | int | |
659 | valid_wild_card_simple(const char *data) | |
660 | { | |
661 | const char *p; | |
662 | char tmpch; | |
663 | int nonwild = 0; | |
664 | int wild = 0; | |
665 | ||
666 | /* check the string for minimum number of nonwildcard chars */ | |
667 | p = data; | |
668 | ||
669 | while((tmpch = *p++)) | |
670 | { | |
671 | /* found an escape, p points to the char after it, so skip | |
672 | * that and move on. | |
673 | */ | |
674 | if(tmpch == '\\' && *p) | |
675 | { | |
676 | p++; | |
677 | if(++nonwild >= ConfigFileEntry.min_nonwildcard_simple) | |
678 | return 1; | |
679 | } | |
680 | else if(!IsMWildChar(tmpch)) | |
681 | { | |
682 | /* if we have enough nonwildchars, return */ | |
683 | if(++nonwild >= ConfigFileEntry.min_nonwildcard_simple) | |
684 | return 1; | |
685 | } | |
686 | else | |
687 | wild++; | |
688 | } | |
689 | ||
690 | /* strings without wilds are also ok */ | |
691 | return wild == 0; | |
692 | } | |
693 | ||
694 | time_t | |
695 | valid_temp_time(const char *p) | |
696 | { | |
697 | time_t result = 0; | |
698 | long current = 0; | |
699 | ||
700 | while (*p) { | |
701 | char *endp; | |
702 | int mul; | |
703 | ||
704 | errno = 0; | |
705 | current = strtol(p, &endp, 10); | |
706 | ||
707 | if (endp == p) | |
708 | return -1; | |
709 | if (current < 0) | |
710 | return -1; | |
711 | ||
712 | switch (*endp) { | |
713 | case '\0': /* No unit was given so send it back as minutes */ | |
714 | case 'm': | |
715 | mul = 60; | |
716 | break; | |
717 | case 'h': | |
718 | mul = 3600; | |
719 | break; | |
720 | case 'd': | |
721 | mul = 86400; | |
722 | break; | |
723 | case 'w': | |
724 | mul = 604800; | |
725 | break; | |
726 | default: | |
727 | return -1; | |
728 | } | |
729 | ||
730 | if (current > LONG_MAX / mul) | |
731 | return MAX_TEMP_TIME; | |
732 | ||
733 | current *= mul; | |
734 | ||
735 | if (current > MAX_TEMP_TIME - result) | |
736 | return MAX_TEMP_TIME; | |
737 | ||
738 | result += current; | |
739 | ||
740 | if (*endp == '\0') | |
741 | break; | |
742 | ||
743 | p = endp + 1; | |
744 | } | |
745 | ||
746 | return MIN(result, MAX_TEMP_TIME); | |
747 | } | |
748 | ||
749 | /* Propagated bans are expired elsewhere. */ | |
750 | static void | |
751 | expire_temp_rxlines(void *unused) | |
752 | { | |
753 | struct ConfItem *aconf; | |
754 | rb_dlink_node *ptr; | |
755 | rb_dlink_node *next_ptr; | |
756 | rb_radixtree_iteration_state state; | |
757 | ||
758 | RB_RADIXTREE_FOREACH(aconf, &state, resv_tree) | |
759 | { | |
760 | if(aconf->lifetime != 0) | |
761 | continue; | |
762 | if(aconf->hold && aconf->hold <= rb_current_time()) | |
763 | { | |
764 | if(ConfigFileEntry.tkline_expire_notices) | |
765 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
766 | "Temporary RESV for [%s] expired", | |
767 | aconf->host); | |
768 | ||
769 | rb_radixtree_delete(resv_tree, aconf->host); | |
770 | free_conf(aconf); | |
771 | } | |
772 | } | |
773 | ||
774 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, resv_conf_list.head) | |
775 | { | |
776 | aconf = ptr->data; | |
777 | ||
778 | if(aconf->lifetime != 0) | |
779 | continue; | |
780 | if(aconf->hold && aconf->hold <= rb_current_time()) | |
781 | { | |
782 | if(ConfigFileEntry.tkline_expire_notices) | |
783 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
784 | "Temporary RESV for [%s] expired", | |
785 | aconf->host); | |
786 | free_conf(aconf); | |
787 | rb_dlinkDestroy(ptr, &resv_conf_list); | |
788 | } | |
789 | } | |
790 | ||
791 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, xline_conf_list.head) | |
792 | { | |
793 | aconf = ptr->data; | |
794 | ||
795 | if(aconf->lifetime != 0) | |
796 | continue; | |
797 | if(aconf->hold && aconf->hold <= rb_current_time()) | |
798 | { | |
799 | if(ConfigFileEntry.tkline_expire_notices) | |
800 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
801 | "Temporary X-line for [%s] expired", | |
802 | aconf->host); | |
803 | free_conf(aconf); | |
804 | rb_dlinkDestroy(ptr, &xline_conf_list); | |
805 | } | |
806 | } | |
807 | } | |
808 | ||
809 | unsigned long | |
810 | get_nd_count(void) | |
811 | { | |
812 | return(rb_dlink_list_length(&nd_list)); | |
813 | } | |
814 | ||
815 | void | |
816 | add_nd_entry(const char *name) | |
817 | { | |
818 | struct nd_entry *nd; | |
819 | ||
820 | if(rb_dictionary_find(nd_dict, name) != NULL) | |
821 | return; | |
822 | ||
823 | nd = rb_bh_alloc(nd_heap); | |
824 | ||
825 | rb_strlcpy(nd->name, name, sizeof(nd->name)); | |
826 | nd->expire = rb_current_time() + ConfigFileEntry.nick_delay; | |
827 | ||
828 | /* this list is ordered */ | |
829 | rb_dlinkAddTail(nd, &nd->lnode, &nd_list); | |
830 | ||
831 | rb_dictionary_add(nd_dict, nd->name, nd); | |
832 | } | |
833 | ||
834 | void | |
835 | free_nd_entry(struct nd_entry *nd) | |
836 | { | |
837 | rb_dictionary_delete(nd_dict, nd->name); | |
838 | ||
839 | rb_dlinkDelete(&nd->lnode, &nd_list); | |
840 | rb_bh_free(nd_heap, nd); | |
841 | } | |
842 | ||
843 | void | |
844 | expire_nd_entries(void *unused) | |
845 | { | |
846 | struct nd_entry *nd; | |
847 | rb_dlink_node *ptr; | |
848 | rb_dlink_node *next_ptr; | |
849 | ||
850 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, nd_list.head) | |
851 | { | |
852 | nd = ptr->data; | |
853 | ||
854 | /* this list is ordered - we can stop when we hit the first | |
855 | * entry that doesnt expire.. | |
856 | */ | |
857 | if(nd->expire > rb_current_time()) | |
858 | return; | |
859 | ||
860 | free_nd_entry(nd); | |
861 | } | |
862 | } | |
863 | ||
864 | void | |
865 | add_tgchange(const char *host) | |
866 | { | |
867 | tgchange *target; | |
868 | rb_patricia_node_t *pnode; | |
869 | ||
870 | if(find_tgchange(host)) | |
871 | return; | |
872 | ||
873 | target = rb_malloc(sizeof(tgchange)); | |
874 | pnode = make_and_lookup(tgchange_tree, host); | |
875 | ||
876 | pnode->data = target; | |
877 | target->pnode = pnode; | |
878 | ||
879 | target->ip = rb_strdup(host); | |
880 | target->expiry = rb_current_time() + (60*60*12); | |
881 | ||
882 | rb_dlinkAdd(target, &target->node, &tgchange_list); | |
883 | } | |
884 | ||
885 | tgchange * | |
886 | find_tgchange(const char *host) | |
887 | { | |
888 | rb_patricia_node_t *pnode; | |
889 | ||
890 | if((pnode = rb_match_exact_string(tgchange_tree, host))) | |
891 | return pnode->data; | |
892 | ||
893 | return NULL; | |
894 | } |