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