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[irc/rqf/shadowircd.git] / src / s_conf.c
1 /*
2 * ircd-ratbox: A slightly useful ircd.
3 * s_conf.c: Configuration file functions.
4 *
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 *
24 * $Id: s_conf.c 3550 2007-08-09 06:47:26Z nenolod $
25 */
26
27 #include "stdinc.h"
28 #include "ircd_defs.h"
29 #include "s_conf.h"
30 #include "s_newconf.h"
31 #include "newconf.h"
32 #include "s_serv.h"
33 #include "s_stats.h"
34 #include "channel.h"
35 #include "class.h"
36 #include "client.h"
37 #include "common.h"
38 #include "hash.h"
39 #include "match.h"
40 #include "ircd.h"
41 #include "listener.h"
42 #include "hostmask.h"
43 #include "modules.h"
44 #include "numeric.h"
45 #include "logger.h"
46 #include "send.h"
47 #include "reject.h"
48 #include "cache.h"
49 #include "blacklist.h"
50 #include "privilege.h"
51 #include "sslproc.h"
52 #include "bandbi.h"
53
54 struct config_server_hide ConfigServerHide;
55
56 extern int yyparse(void); /* defined in y.tab.c */
57 extern char linebuf[];
58
59 #ifndef INADDR_NONE
60 #define INADDR_NONE ((unsigned int) 0xffffffff)
61 #endif
62
63 static rb_bh *confitem_heap = NULL;
64
65 rb_dlink_list temp_klines[LAST_TEMP_TYPE];
66 rb_dlink_list temp_dlines[LAST_TEMP_TYPE];
67 rb_dlink_list service_list;
68
69 /* internally defined functions */
70 static void set_default_conf(void);
71 static void validate_conf(void);
72 static void read_conf(FILE *);
73 static void clear_out_old_conf(void);
74
75 static void expire_temp_kd(void *list);
76 static void reorganise_temp_kd(void *list);
77
78 FILE *conf_fbfile_in;
79 extern char yytext[];
80
81 static int verify_access(struct Client *client_p, const char *username);
82 static int attach_iline(struct Client *, struct ConfItem *);
83
84 void
85 init_s_conf(void)
86 {
87 confitem_heap = rb_bh_create(sizeof(struct ConfItem), CONFITEM_HEAP_SIZE, "confitem_heap");
88
89 rb_event_addish("expire_temp_klines", expire_temp_kd, &temp_klines[TEMP_MIN], 60);
90 rb_event_addish("expire_temp_dlines", expire_temp_kd, &temp_dlines[TEMP_MIN], 60);
91
92 rb_event_addish("expire_temp_klines_hour", reorganise_temp_kd,
93 &temp_klines[TEMP_HOUR], 3600);
94 rb_event_addish("expire_temp_dlines_hour", reorganise_temp_kd,
95 &temp_dlines[TEMP_HOUR], 3600);
96 rb_event_addish("expire_temp_klines_day", reorganise_temp_kd,
97 &temp_klines[TEMP_DAY], 86400);
98 rb_event_addish("expire_temp_dlines_day", reorganise_temp_kd,
99 &temp_dlines[TEMP_DAY], 86400);
100 rb_event_addish("expire_temp_klines_week", reorganise_temp_kd,
101 &temp_klines[TEMP_WEEK], 604800);
102 rb_event_addish("expire_temp_dlines_week", reorganise_temp_kd,
103 &temp_dlines[TEMP_WEEK], 604800);
104 }
105
106 /*
107 * make_conf
108 *
109 * inputs - none
110 * output - pointer to new conf entry
111 * side effects - none
112 */
113 struct ConfItem *
114 make_conf()
115 {
116 struct ConfItem *aconf;
117
118 aconf = rb_bh_alloc(confitem_heap);
119 aconf->status = CONF_ILLEGAL;
120 return (aconf);
121 }
122
123 /*
124 * free_conf
125 *
126 * inputs - pointer to conf to free
127 * output - none
128 * side effects - crucial password fields are zeroed, conf is freed
129 */
130 void
131 free_conf(struct ConfItem *aconf)
132 {
133 s_assert(aconf != NULL);
134 if(aconf == NULL)
135 return;
136
137 /* security.. */
138 if(aconf->passwd)
139 memset(aconf->passwd, 0, strlen(aconf->passwd));
140 if(aconf->spasswd)
141 memset(aconf->spasswd, 0, strlen(aconf->spasswd));
142
143 rb_free(aconf->passwd);
144 rb_free(aconf->spasswd);
145 rb_free(aconf->name);
146 rb_free(aconf->className);
147 rb_free(aconf->user);
148 rb_free(aconf->host);
149
150 rb_bh_free(confitem_heap, aconf);
151 }
152
153 /*
154 * check_client
155 *
156 * inputs - pointer to client
157 * output - 0 = Success
158 * NOT_AUTHORISED (-1) = Access denied (no I line match)
159 * SOCKET_ERROR (-2) = Bad socket.
160 * I_LINE_FULL (-3) = I-line is full
161 * TOO_MANY (-4) = Too many connections from hostname
162 * BANNED_CLIENT (-5) = K-lined
163 * side effects - Ordinary client access check.
164 * Look for conf lines which have the same
165 * status as the flags passed.
166 */
167 int
168 check_client(struct Client *client_p, struct Client *source_p, const char *username)
169 {
170 int i;
171
172 if((i = verify_access(source_p, username)))
173 {
174 ilog(L_FUSER, "Access denied: %s[%s]",
175 source_p->name, source_p->sockhost);
176 }
177
178 switch (i)
179 {
180 case SOCKET_ERROR:
181 exit_client(client_p, source_p, &me, "Socket Error");
182 break;
183
184 case TOO_MANY_LOCAL:
185 /* Note that these notices are sent to opers on other
186 * servers also, so even if local opers are allowed to
187 * see the IP, we still cannot send it.
188 */
189 sendto_realops_snomask(SNO_FULL, L_NETWIDE,
190 "Too many local connections for %s!%s%s@%s",
191 source_p->name, IsGotId(source_p) ? "" : "~",
192 source_p->username,
193 show_ip(NULL, source_p) && !IsIPSpoof(source_p) ? source_p->sockhost : source_p->host);
194
195 ilog(L_FUSER, "Too many local connections from %s!%s%s@%s",
196 source_p->name, IsGotId(source_p) ? "" : "~",
197 source_p->username, source_p->sockhost);
198
199 ServerStats.is_ref++;
200 exit_client(client_p, source_p, &me, "Too many host connections (local)");
201 break;
202
203 case TOO_MANY_GLOBAL:
204 sendto_realops_snomask(SNO_FULL, L_NETWIDE,
205 "Too many global connections for %s!%s%s@%s",
206 source_p->name, IsGotId(source_p) ? "" : "~",
207 source_p->username,
208 show_ip(NULL, source_p) && !IsIPSpoof(source_p) ? source_p->sockhost : source_p->host);
209 ilog(L_FUSER, "Too many global connections from %s!%s%s@%s",
210 source_p->name, IsGotId(source_p) ? "" : "~",
211 source_p->username, source_p->sockhost);
212
213 ServerStats.is_ref++;
214 exit_client(client_p, source_p, &me, "Too many host connections (global)");
215 break;
216
217 case TOO_MANY_IDENT:
218 sendto_realops_snomask(SNO_FULL, L_NETWIDE,
219 "Too many user connections for %s!%s%s@%s",
220 source_p->name, IsGotId(source_p) ? "" : "~",
221 source_p->username,
222 show_ip(NULL, source_p) && !IsIPSpoof(source_p) ? source_p->sockhost : source_p->host);
223 ilog(L_FUSER, "Too many user connections from %s!%s%s@%s",
224 source_p->name, IsGotId(source_p) ? "" : "~",
225 source_p->username, source_p->sockhost);
226
227 ServerStats.is_ref++;
228 exit_client(client_p, source_p, &me, "Too many user connections (global)");
229 break;
230
231 case I_LINE_FULL:
232 sendto_realops_snomask(SNO_FULL, L_NETWIDE,
233 "I-line is full for %s!%s%s@%s (%s).",
234 source_p->name, IsGotId(source_p) ? "" : "~",
235 source_p->username, source_p->host,
236 show_ip(NULL, source_p) && !IsIPSpoof(source_p) ? source_p->sockhost : "255.255.255.255");
237
238 ilog(L_FUSER, "Too many connections from %s!%s%s@%s.",
239 source_p->name, IsGotId(source_p) ? "" : "~",
240 source_p->username, source_p->sockhost);
241
242 ServerStats.is_ref++;
243 exit_client(client_p, source_p, &me,
244 "No more connections allowed in your connection class");
245 break;
246
247 case NOT_AUTHORISED:
248 {
249 int port = -1;
250 #ifdef RB_IPV6
251 if(source_p->localClient->ip.ss_family == AF_INET6)
252 port = ntohs(((struct sockaddr_in6 *)&source_p->localClient->listener->addr)->sin6_port);
253 else
254 #endif
255 port = ntohs(((struct sockaddr_in *)&source_p->localClient->listener->addr)->sin_port);
256
257 ServerStats.is_ref++;
258 /* jdc - lists server name & port connections are on */
259 /* a purely cosmetical change */
260 /* why ipaddr, and not just source_p->sockhost? --fl */
261 #if 0
262 static char ipaddr[HOSTIPLEN];
263 rb_inet_ntop_sock(&source_p->localClient->ip, ipaddr, sizeof(ipaddr));
264 #endif
265 sendto_realops_snomask(SNO_UNAUTH, L_ALL,
266 "Unauthorised client connection from "
267 "%s!%s%s@%s [%s] on [%s/%u].",
268 source_p->name, IsGotId(source_p) ? "" : "~",
269 source_p->username, source_p->host,
270 source_p->sockhost,
271 source_p->localClient->listener->name, port);
272
273 ilog(L_FUSER,
274 "Unauthorised client connection from %s!%s%s@%s on [%s/%u].",
275 source_p->name, IsGotId(source_p) ? "" : "~",
276 source_p->username, source_p->sockhost,
277 source_p->localClient->listener->name, port);
278 add_reject(client_p, NULL, NULL);
279 exit_client(client_p, source_p, &me,
280 "You are not authorised to use this server");
281 break;
282 }
283 case BANNED_CLIENT:
284 exit_client(client_p, client_p, &me, "*** Banned ");
285 ServerStats.is_ref++;
286 break;
287
288 case 0:
289 default:
290 break;
291 }
292 return (i);
293 }
294
295 /*
296 * verify_access
297 *
298 * inputs - pointer to client to verify
299 * - pointer to proposed username
300 * output - 0 if success -'ve if not
301 * side effect - find the first (best) I line to attach.
302 */
303 static int
304 verify_access(struct Client *client_p, const char *username)
305 {
306 struct ConfItem *aconf;
307 char non_ident[USERLEN + 1];
308
309 if(IsGotId(client_p))
310 {
311 aconf = find_address_conf(client_p->host, client_p->sockhost,
312 client_p->username, client_p->username,
313 (struct sockaddr *) &client_p->localClient->ip,
314 client_p->localClient->ip.ss_family,
315 client_p->localClient->auth_user);
316 }
317 else
318 {
319 rb_strlcpy(non_ident, "~", sizeof(non_ident));
320 rb_strlcat(non_ident, username, sizeof(non_ident));
321 aconf = find_address_conf(client_p->host, client_p->sockhost,
322 non_ident, client_p->username,
323 (struct sockaddr *) &client_p->localClient->ip,
324 client_p->localClient->ip.ss_family,
325 client_p->localClient->auth_user);
326 }
327
328 if(aconf == NULL)
329 return NOT_AUTHORISED;
330
331 if(aconf->status & CONF_CLIENT)
332 {
333 if(aconf->flags & CONF_FLAGS_REDIR)
334 {
335 sendto_one_numeric(client_p, RPL_REDIR, form_str(RPL_REDIR),
336 aconf->name ? aconf->name : "", aconf->port);
337 return (NOT_AUTHORISED);
338 }
339
340 /* Thanks for spoof idea amm */
341 if(IsConfDoSpoofIp(aconf))
342 {
343 char *p;
344
345 /* show_ip() depends on this --fl */
346 SetIPSpoof(client_p);
347
348 if(IsConfSpoofNotice(aconf))
349 {
350 sendto_realops_snomask(SNO_GENERAL, L_ALL,
351 "%s spoofing: %s as %s",
352 client_p->name,
353 show_ip(NULL, client_p) ? client_p->host : aconf->name,
354 aconf->name);
355 }
356
357 /* user@host spoof */
358 if((p = strchr(aconf->name, '@')) != NULL)
359 {
360 char *host = p+1;
361 *p = '\0';
362
363 rb_strlcpy(client_p->username, aconf->name,
364 sizeof(client_p->username));
365 rb_strlcpy(client_p->host, host,
366 sizeof(client_p->host));
367 *p = '@';
368 }
369 else
370 rb_strlcpy(client_p->host, aconf->name, sizeof(client_p->host));
371 }
372 return (attach_iline(client_p, aconf));
373 }
374 else if(aconf->status & CONF_KILL)
375 {
376 if(ConfigFileEntry.kline_with_reason)
377 {
378 sendto_one(client_p,
379 form_str(ERR_YOUREBANNEDCREEP),
380 me.name, client_p->name, aconf->passwd);
381 }
382 add_reject(client_p, aconf->user, aconf->host);
383 return (BANNED_CLIENT);
384 }
385
386 return NOT_AUTHORISED;
387 }
388
389
390 /*
391 * add_ip_limit
392 *
393 * Returns 1 if successful 0 if not
394 *
395 * This checks if the user has exceed the limits for their class
396 * unless of course they are exempt..
397 */
398
399 static int
400 add_ip_limit(struct Client *client_p, struct ConfItem *aconf)
401 {
402 rb_patricia_node_t *pnode;
403 int bitlen;
404
405 /* If the limits are 0 don't do anything.. */
406 if(ConfCidrAmount(aconf) == 0
407 || (ConfCidrIpv4Bitlen(aconf) == 0 && ConfCidrIpv6Bitlen(aconf) == 0))
408 return -1;
409
410 pnode = rb_match_ip(ConfIpLimits(aconf), (struct sockaddr *)&client_p->localClient->ip);
411
412 if(GET_SS_FAMILY(&client_p->localClient->ip) == AF_INET)
413 bitlen = ConfCidrIpv4Bitlen(aconf);
414 else
415 bitlen = ConfCidrIpv6Bitlen(aconf);
416
417 if(pnode == NULL)
418 pnode = make_and_lookup_ip(ConfIpLimits(aconf), (struct sockaddr *)&client_p->localClient->ip, bitlen);
419
420 s_assert(pnode != NULL);
421
422 if(pnode != NULL)
423 {
424 if(((intptr_t)pnode->data) >= ConfCidrAmount(aconf) && !IsConfExemptLimits(aconf))
425 {
426 /* This should only happen if the limits are set to 0 */
427 if((intptr_t)pnode->data == 0)
428 {
429 rb_patricia_remove(ConfIpLimits(aconf), pnode);
430 }
431 return (0);
432 }
433
434 pnode->data = (void *)(((intptr_t)pnode->data) + 1);
435 }
436 return 1;
437 }
438
439 static void
440 remove_ip_limit(struct Client *client_p, struct ConfItem *aconf)
441 {
442 rb_patricia_node_t *pnode;
443
444 /* If the limits are 0 don't do anything.. */
445 if(ConfCidrAmount(aconf) == 0
446 || (ConfCidrIpv4Bitlen(aconf) == 0 && ConfCidrIpv6Bitlen(aconf) == 0))
447 return;
448
449 pnode = rb_match_ip(ConfIpLimits(aconf), (struct sockaddr *)&client_p->localClient->ip);
450 if(pnode == NULL)
451 return;
452
453 pnode->data = (void *)(((intptr_t)pnode->data) - 1);
454 if(((intptr_t)pnode->data) == 0)
455 {
456 rb_patricia_remove(ConfIpLimits(aconf), pnode);
457 }
458
459 }
460
461 /*
462 * attach_iline
463 *
464 * inputs - client pointer
465 * - conf pointer
466 * output -
467 * side effects - do actual attach
468 */
469 static int
470 attach_iline(struct Client *client_p, struct ConfItem *aconf)
471 {
472 struct Client *target_p;
473 rb_dlink_node *ptr;
474 int local_count = 0;
475 int global_count = 0;
476 int ident_count = 0;
477 int unidented = 0;
478
479 if(IsConfExemptLimits(aconf))
480 return (attach_conf(client_p, aconf));
481
482 if(*client_p->username == '~')
483 unidented = 1;
484
485
486 /* find_hostname() returns the head of the list to search */
487 RB_DLINK_FOREACH(ptr, find_hostname(client_p->host))
488 {
489 target_p = ptr->data;
490
491 if(irccmp(client_p->host, target_p->orighost) != 0)
492 continue;
493
494 if(MyConnect(target_p))
495 local_count++;
496
497 global_count++;
498
499 if(unidented)
500 {
501 if(*target_p->username == '~')
502 ident_count++;
503 }
504 else if(irccmp(target_p->username, client_p->username) == 0)
505 ident_count++;
506
507 if(ConfMaxLocal(aconf) && local_count >= ConfMaxLocal(aconf))
508 return (TOO_MANY_LOCAL);
509 else if(ConfMaxGlobal(aconf) && global_count >= ConfMaxGlobal(aconf))
510 return (TOO_MANY_GLOBAL);
511 else if(ConfMaxIdent(aconf) && ident_count >= ConfMaxIdent(aconf))
512 return (TOO_MANY_IDENT);
513 }
514
515
516 return (attach_conf(client_p, aconf));
517 }
518
519 /*
520 * detach_conf
521 *
522 * inputs - pointer to client to detach
523 * output - 0 for success, -1 for failure
524 * side effects - Disassociate configuration from the client.
525 * Also removes a class from the list if marked for deleting.
526 */
527 int
528 detach_conf(struct Client *client_p)
529 {
530 struct ConfItem *aconf;
531
532 aconf = client_p->localClient->att_conf;
533
534 if(aconf != NULL)
535 {
536 if(ClassPtr(aconf))
537 {
538 remove_ip_limit(client_p, aconf);
539
540 if(ConfCurrUsers(aconf) > 0)
541 --ConfCurrUsers(aconf);
542
543 if(ConfMaxUsers(aconf) == -1 && ConfCurrUsers(aconf) == 0)
544 {
545 free_class(ClassPtr(aconf));
546 ClassPtr(aconf) = NULL;
547 }
548
549 }
550
551 aconf->clients--;
552 if(!aconf->clients && IsIllegal(aconf))
553 free_conf(aconf);
554
555 client_p->localClient->att_conf = NULL;
556 return 0;
557 }
558
559 return -1;
560 }
561
562 /*
563 * attach_conf
564 *
565 * inputs - client pointer
566 * - conf pointer
567 * output -
568 * side effects - Associate a specific configuration entry to a *local*
569 * client (this is the one which used in accepting the
570 * connection). Note, that this automatically changes the
571 * attachment if there was an old one...
572 */
573 int
574 attach_conf(struct Client *client_p, struct ConfItem *aconf)
575 {
576 if(IsIllegal(aconf))
577 return (NOT_AUTHORISED);
578
579 if(ClassPtr(aconf))
580 {
581 if(!add_ip_limit(client_p, aconf))
582 return (TOO_MANY_LOCAL);
583 }
584
585 if((aconf->status & CONF_CLIENT) &&
586 ConfCurrUsers(aconf) >= ConfMaxUsers(aconf) && ConfMaxUsers(aconf) > 0)
587 {
588 if(!IsConfExemptLimits(aconf))
589 {
590 return (I_LINE_FULL);
591 }
592 else
593 {
594 sendto_one_notice(client_p, ":*** I: line is full, but you have an >I: line!");
595 }
596
597 }
598
599 if(client_p->localClient->att_conf != NULL)
600 detach_conf(client_p);
601
602 client_p->localClient->att_conf = aconf;
603
604 aconf->clients++;
605 ConfCurrUsers(aconf)++;
606 return (0);
607 }
608
609 /*
610 * rehash
611 *
612 * Actual REHASH service routine. Called with sig == 0 if it has been called
613 * as a result of an operator issuing this command, else assume it has been
614 * called as a result of the server receiving a HUP signal.
615 */
616 int
617 rehash(int sig)
618 {
619 if(sig != 0)
620 {
621 sendto_realops_snomask(SNO_GENERAL, L_ALL,
622 "Got signal SIGHUP, reloading ircd conf. file");
623 }
624
625 restart_resolver();
626 /* don't close listeners until we know we can go ahead with the rehash */
627 read_conf_files(NO);
628
629 if(ServerInfo.description != NULL)
630 rb_strlcpy(me.info, ServerInfo.description, sizeof(me.info));
631 else
632 rb_strlcpy(me.info, "unknown", sizeof(me.info));
633
634 open_logfiles();
635 return (0);
636 }
637
638 void
639 rehash_bans(int sig)
640 {
641 bandb_rehash_bans();
642 }
643
644 /*
645 * set_default_conf()
646 *
647 * inputs - NONE
648 * output - NONE
649 * side effects - Set default values here.
650 * This is called **PRIOR** to parsing the
651 * configuration file. If you want to do some validation
652 * of values later, put them in validate_conf().
653 */
654
655 #define YES 1
656 #define NO 0
657 #define UNSET -1
658
659 static void
660 set_default_conf(void)
661 {
662 /* ServerInfo.name is not rehashable */
663 /* ServerInfo.name = ServerInfo.name; */
664 ServerInfo.description = NULL;
665 ServerInfo.network_name = rb_strdup(NETWORK_NAME_DEFAULT);
666 ServerInfo.network_desc = rb_strdup(NETWORK_DESC_DEFAULT);
667
668 memset(&ServerInfo.ip, 0, sizeof(ServerInfo.ip));
669 ServerInfo.specific_ipv4_vhost = 0;
670 #ifdef RB_IPV6
671 memset(&ServerInfo.ip6, 0, sizeof(ServerInfo.ip6));
672 ServerInfo.specific_ipv6_vhost = 0;
673 #endif
674
675 /* Don't reset hub, as that will break lazylinks */
676 /* ServerInfo.hub = NO; */
677 AdminInfo.name = NULL;
678 AdminInfo.email = NULL;
679 AdminInfo.description = NULL;
680
681 ConfigFileEntry.default_operstring = rb_strdup("is an IRC operator");
682 ConfigFileEntry.default_adminstring = rb_strdup("is a Server Administrator");
683 ConfigFileEntry.servicestring = rb_strdup("is a Network Service");
684
685 ConfigFileEntry.default_umodes = UMODE_INVISIBLE;
686 ConfigFileEntry.failed_oper_notice = YES;
687 ConfigFileEntry.anti_nick_flood = NO;
688 ConfigFileEntry.disable_fake_channels = NO;
689 ConfigFileEntry.max_nick_time = 20;
690 ConfigFileEntry.max_nick_changes = 5;
691 ConfigFileEntry.max_accept = 20;
692 ConfigFileEntry.max_monitor = 60;
693 ConfigFileEntry.nick_delay = 900; /* 15 minutes */
694 ConfigFileEntry.target_change = YES;
695 ConfigFileEntry.anti_spam_exit_message_time = 0;
696 ConfigFileEntry.ts_warn_delta = TS_WARN_DELTA_DEFAULT;
697 ConfigFileEntry.ts_max_delta = TS_MAX_DELTA_DEFAULT;
698 ConfigFileEntry.client_exit = YES;
699 ConfigFileEntry.dline_with_reason = YES;
700 ConfigFileEntry.kline_with_reason = YES;
701 ConfigFileEntry.kline_delay = 0;
702 ConfigFileEntry.warn_no_nline = YES;
703 ConfigFileEntry.non_redundant_klines = YES;
704 ConfigFileEntry.stats_e_disabled = NO;
705 ConfigFileEntry.stats_o_oper_only = NO;
706 ConfigFileEntry.stats_k_oper_only = 1; /* masked */
707 ConfigFileEntry.stats_i_oper_only = 1; /* masked */
708 ConfigFileEntry.stats_P_oper_only = NO;
709 ConfigFileEntry.stats_c_oper_only = NO;
710 ConfigFileEntry.stats_y_oper_only = NO;
711 ConfigFileEntry.stats_h_oper_only = NO;
712 ConfigFileEntry.map_oper_only = YES;
713 ConfigFileEntry.operspy_admin_only = NO;
714 ConfigFileEntry.pace_wait = 10;
715 ConfigFileEntry.caller_id_wait = 60;
716 ConfigFileEntry.pace_wait_simple = 1;
717 ConfigFileEntry.short_motd = NO;
718 ConfigFileEntry.no_oper_flood = NO;
719 ConfigFileEntry.fname_userlog = NULL;
720 ConfigFileEntry.fname_fuserlog = NULL;
721 ConfigFileEntry.fname_operlog = NULL;
722 ConfigFileEntry.fname_foperlog = NULL;
723 ConfigFileEntry.fname_serverlog = NULL;
724 ConfigFileEntry.fname_klinelog = NULL;
725 ConfigFileEntry.fname_operspylog = NULL;
726 ConfigFileEntry.fname_ioerrorlog = NULL;
727 ConfigFileEntry.use_egd = NO;
728 ConfigFileEntry.hide_spoof_ips = YES;
729 ConfigFileEntry.hide_error_messages = 1;
730 ConfigFileEntry.dots_in_ident = 0;
731 ConfigFileEntry.max_targets = MAX_TARGETS_DEFAULT;
732 ConfigFileEntry.egdpool_path = NULL;
733 ConfigFileEntry.use_whois_actually = YES;
734 ConfigFileEntry.burst_away = NO;
735 ConfigFileEntry.collision_fnc = YES;
736 ConfigFileEntry.global_snotices = YES;
737 ConfigFileEntry.operspy_dont_care_user_info = NO;
738 ConfigFileEntry.secret_channels_in_whois = NO;
739
740 #ifdef HAVE_LIBZ
741 ConfigFileEntry.compression_level = 4;
742 #endif
743
744 ConfigFileEntry.oper_umodes = UMODE_LOCOPS | UMODE_SERVNOTICE |
745 UMODE_OPERWALL | UMODE_WALLOP;
746 ConfigFileEntry.oper_only_umodes = UMODE_SERVNOTICE;
747 ConfigFileEntry.oper_snomask = SNO_GENERAL;
748
749 ConfigChannel.autochanmodes = rb_strdup("nt");
750 ConfigChannel.use_except = YES;
751 ConfigChannel.use_invex = YES;
752 ConfigChannel.use_knock = YES;
753 ConfigChannel.use_forward = YES;
754 ConfigChannel.knock_delay = 300;
755 ConfigChannel.knock_delay_channel = 60;
756 ConfigChannel.max_chans_per_user = 15;
757 ConfigChannel.max_bans = 25;
758 ConfigChannel.max_bans_large = 500;
759 ConfigChannel.only_ascii_channels = NO;
760 ConfigChannel.cycle_host_change = YES;
761 ConfigChannel.host_in_topic = YES;
762 ConfigChannel.burst_topicwho = NO;
763 ConfigChannel.kick_on_split_riding = NO;
764
765 ConfigChannel.default_split_user_count = 15000;
766 ConfigChannel.default_split_server_count = 10;
767 ConfigChannel.no_join_on_split = NO;
768 ConfigChannel.no_create_on_split = YES;
769 ConfigChannel.resv_forcepart = YES;
770
771 ConfigServerHide.flatten_links = 0;
772 ConfigServerHide.links_delay = 300;
773 ConfigServerHide.hidden = 0;
774 ConfigServerHide.disable_hidden = 0;
775
776 ConfigFileEntry.min_nonwildcard = 4;
777 ConfigFileEntry.min_nonwildcard_simple = 3;
778 ConfigFileEntry.default_floodcount = 8;
779 ConfigFileEntry.client_flood = CLIENT_FLOOD_DEFAULT;
780 ConfigFileEntry.tkline_expire_notices = 0;
781
782 ConfigFileEntry.reject_after_count = 5;
783 ConfigFileEntry.reject_ban_time = 300;
784 ConfigFileEntry.reject_duration = 120;
785 ConfigFileEntry.throttle_count = 4;
786 ConfigFileEntry.throttle_duration = 60;
787 ConfigFileEntry.expire_override_time = 300;
788
789 ServerInfo.default_max_clients = MAXCONNECTIONS;
790
791 if (!alias_dict)
792 alias_dict = irc_dictionary_create(strcasecmp);
793 }
794
795 #undef YES
796 #undef NO
797
798 /*
799 * read_conf()
800 *
801 *
802 * inputs - file descriptor pointing to config file to use
803 * output - None
804 * side effects - Read configuration file.
805 */
806 static void
807 read_conf(FILE * file)
808 {
809 lineno = 0;
810
811 set_default_conf(); /* Set default values prior to conf parsing */
812 yyparse(); /* Load the values from the conf */
813 validate_conf(); /* Check to make sure some values are still okay. */
814 /* Some global values are also loaded here. */
815 check_class(); /* Make sure classes are valid */
816 privilegeset_delete_all_illegal();
817 }
818
819 static void
820 validate_conf(void)
821 {
822 if(ConfigFileEntry.ts_warn_delta < TS_WARN_DELTA_MIN)
823 ConfigFileEntry.ts_warn_delta = TS_WARN_DELTA_DEFAULT;
824
825 if(ConfigFileEntry.ts_max_delta < TS_MAX_DELTA_MIN)
826 ConfigFileEntry.ts_max_delta = TS_MAX_DELTA_DEFAULT;
827
828 if(ServerInfo.network_name == NULL)
829 ServerInfo.network_name = rb_strdup(NETWORK_NAME_DEFAULT);
830
831 if(ServerInfo.network_desc == NULL)
832 ServerInfo.network_desc = rb_strdup(NETWORK_DESC_DEFAULT);
833
834 if(ServerInfo.ssld_count < 1)
835 ServerInfo.ssld_count = 1;
836
837 if(!rb_setup_ssl_server(ServerInfo.ssl_cert, ServerInfo.ssl_private_key, ServerInfo.ssl_dh_params))
838 {
839 ilog(L_MAIN, "WARNING: Unable to setup SSL.");
840 ssl_ok = 0;
841 } else {
842 ssl_ok = 1;
843 send_new_ssl_certs(ServerInfo.ssl_cert, ServerInfo.ssl_private_key, ServerInfo.ssl_dh_params);
844 }
845
846 if(ServerInfo.ssld_count > get_ssld_count())
847 {
848 int start = ServerInfo.ssld_count - get_ssld_count();
849 /* start up additional ssld if needed */
850 start_ssldaemon(start, ServerInfo.ssl_cert, ServerInfo.ssl_private_key, ServerInfo.ssl_dh_params);
851
852 }
853
854 if((ConfigFileEntry.client_flood < CLIENT_FLOOD_MIN) ||
855 (ConfigFileEntry.client_flood > CLIENT_FLOOD_MAX))
856 ConfigFileEntry.client_flood = CLIENT_FLOOD_MAX;
857
858 if(!split_users || !split_servers ||
859 (!ConfigChannel.no_create_on_split && !ConfigChannel.no_join_on_split))
860 {
861 rb_event_delete(check_splitmode_ev);
862 check_splitmode_ev = NULL;
863 splitmode = 0;
864 splitchecking = 0;
865 }
866 }
867
868 /* add_temp_kline()
869 *
870 * inputs - pointer to struct ConfItem
871 * output - none
872 * Side effects - links in given struct ConfItem into
873 * temporary kline link list
874 */
875 void
876 add_temp_kline(struct ConfItem *aconf)
877 {
878 if(aconf->hold >= rb_current_time() + (10080 * 60))
879 {
880 rb_dlinkAddAlloc(aconf, &temp_klines[TEMP_WEEK]);
881 aconf->port = TEMP_WEEK;
882 }
883 else if(aconf->hold >= rb_current_time() + (1440 * 60))
884 {
885 rb_dlinkAddAlloc(aconf, &temp_klines[TEMP_DAY]);
886 aconf->port = TEMP_DAY;
887 }
888 else if(aconf->hold >= rb_current_time() + (60 * 60))
889 {
890 rb_dlinkAddAlloc(aconf, &temp_klines[TEMP_HOUR]);
891 aconf->port = TEMP_HOUR;
892 }
893 else
894 {
895 rb_dlinkAddAlloc(aconf, &temp_klines[TEMP_MIN]);
896 aconf->port = TEMP_MIN;
897 }
898
899 aconf->flags |= CONF_FLAGS_TEMPORARY;
900 add_conf_by_address(aconf->host, CONF_KILL, aconf->user, NULL, aconf);
901 }
902
903 /* add_temp_dline()
904 *
905 * input - pointer to struct ConfItem
906 * output - none
907 * side effects - added to tdline link list and address hash
908 */
909 void
910 add_temp_dline(struct ConfItem *aconf)
911 {
912 if(aconf->hold >= rb_current_time() + (10080 * 60))
913 {
914 rb_dlinkAddAlloc(aconf, &temp_dlines[TEMP_WEEK]);
915 aconf->port = TEMP_WEEK;
916 }
917 else if(aconf->hold >= rb_current_time() + (1440 * 60))
918 {
919 rb_dlinkAddAlloc(aconf, &temp_dlines[TEMP_DAY]);
920 aconf->port = TEMP_DAY;
921 }
922 else if(aconf->hold >= rb_current_time() + (60 * 60))
923 {
924 rb_dlinkAddAlloc(aconf, &temp_dlines[TEMP_HOUR]);
925 aconf->port = TEMP_HOUR;
926 }
927 else
928 {
929 rb_dlinkAddAlloc(aconf, &temp_dlines[TEMP_MIN]);
930 aconf->port = TEMP_MIN;
931 }
932
933 aconf->flags |= CONF_FLAGS_TEMPORARY;
934 add_conf_by_address(aconf->host, CONF_DLINE, aconf->user, NULL, aconf);
935 }
936
937 /* expire_tkline()
938 *
939 * inputs - list pointer
940 * - type
941 * output - NONE
942 * side effects - expire tklines and moves them between lists
943 */
944 static void
945 expire_temp_kd(void *list)
946 {
947 rb_dlink_node *ptr;
948 rb_dlink_node *next_ptr;
949 struct ConfItem *aconf;
950
951 RB_DLINK_FOREACH_SAFE(ptr, next_ptr, ((rb_dlink_list *) list)->head)
952 {
953 aconf = ptr->data;
954
955 if(aconf->hold <= rb_current_time())
956 {
957 /* Alert opers that a TKline expired - Hwy */
958 if(ConfigFileEntry.tkline_expire_notices)
959 sendto_realops_snomask(SNO_GENERAL, L_ALL,
960 "Temporary K-line for [%s@%s] expired",
961 (aconf->user) ? aconf->
962 user : "*", (aconf->host) ? aconf->host : "*");
963
964 delete_one_address_conf(aconf->host, aconf);
965 rb_dlinkDestroy(ptr, list);
966 }
967 }
968 }
969
970 static void
971 reorganise_temp_kd(void *list)
972 {
973 struct ConfItem *aconf;
974 rb_dlink_node *ptr, *next_ptr;
975
976 RB_DLINK_FOREACH_SAFE(ptr, next_ptr, ((rb_dlink_list *) list)->head)
977 {
978 aconf = ptr->data;
979
980 if(aconf->hold < (rb_current_time() + (60 * 60)))
981 {
982 rb_dlinkMoveNode(ptr, list, (aconf->status == CONF_KILL) ?
983 &temp_klines[TEMP_MIN] : &temp_dlines[TEMP_MIN]);
984 aconf->port = TEMP_MIN;
985 }
986 else if(aconf->port > TEMP_HOUR)
987 {
988 if(aconf->hold < (rb_current_time() + (1440 * 60)))
989 {
990 rb_dlinkMoveNode(ptr, list, (aconf->status == CONF_KILL) ?
991 &temp_klines[TEMP_HOUR] : &temp_dlines[TEMP_HOUR]);
992 aconf->port = TEMP_HOUR;
993 }
994 else if(aconf->port > TEMP_DAY &&
995 (aconf->hold < (rb_current_time() + (10080 * 60))))
996 {
997 rb_dlinkMoveNode(ptr, list, (aconf->status == CONF_KILL) ?
998 &temp_klines[TEMP_DAY] : &temp_dlines[TEMP_DAY]);
999 aconf->port = TEMP_DAY;
1000 }
1001 }
1002 }
1003 }
1004
1005
1006 /* const char* get_oper_name(struct Client *client_p)
1007 * Input: A client to find the active oper{} name for.
1008 * Output: The nick!user@host{oper} of the oper.
1009 * "oper" is server name for remote opers
1010 * Side effects: None.
1011 */
1012 char *
1013 get_oper_name(struct Client *client_p)
1014 {
1015 /* +5 for !,@,{,} and null */
1016 static char buffer[NICKLEN + USERLEN + HOSTLEN + HOSTLEN + 5];
1017
1018 if(MyOper(client_p))
1019 {
1020 rb_snprintf(buffer, sizeof(buffer), "%s!%s@%s{%s}",
1021 client_p->name, client_p->username,
1022 client_p->host, client_p->localClient->opername);
1023 return buffer;
1024 }
1025
1026 rb_snprintf(buffer, sizeof(buffer), "%s!%s@%s{%s}",
1027 client_p->name, client_p->username,
1028 client_p->host, client_p->servptr->name);
1029 return buffer;
1030 }
1031
1032 /*
1033 * get_printable_conf
1034 *
1035 * inputs - struct ConfItem
1036 *
1037 * output - name
1038 * - host
1039 * - pass
1040 * - user
1041 * - port
1042 *
1043 * side effects -
1044 * Examine the struct struct ConfItem, setting the values
1045 * of name, host, pass, user to values either
1046 * in aconf, or "<NULL>" port is set to aconf->port in all cases.
1047 */
1048 void
1049 get_printable_conf(struct ConfItem *aconf, char **name, char **host,
1050 char **pass, char **user, int *port, char **classname)
1051 {
1052 static char null[] = "<NULL>";
1053 static char zero[] = "default";
1054
1055 *name = EmptyString(aconf->name) ? null : aconf->name;
1056 *host = EmptyString(aconf->host) ? null : aconf->host;
1057 *pass = EmptyString(aconf->passwd) ? null : aconf->passwd;
1058 *user = EmptyString(aconf->user) ? null : aconf->user;
1059 *classname = EmptyString(aconf->className) ? zero : aconf->className;
1060 *port = (int) aconf->port;
1061 }
1062
1063 void
1064 get_printable_kline(struct Client *source_p, struct ConfItem *aconf,
1065 char **host, char **reason,
1066 char **user, char **oper_reason)
1067 {
1068 static char null[] = "<NULL>";
1069
1070 *host = EmptyString(aconf->host) ? null : aconf->host;
1071 *reason = EmptyString(aconf->passwd) ? null : aconf->passwd;
1072 *user = EmptyString(aconf->user) ? null : aconf->user;
1073
1074 if(EmptyString(aconf->spasswd) || !IsOper(source_p))
1075 *oper_reason = NULL;
1076 else
1077 *oper_reason = aconf->spasswd;
1078 }
1079
1080 /*
1081 * read_conf_files
1082 *
1083 * inputs - cold start YES or NO
1084 * output - none
1085 * side effects - read all conf files needed, ircd.conf kline.conf etc.
1086 */
1087 void
1088 read_conf_files(int cold)
1089 {
1090 const char *filename;
1091
1092 conf_fbfile_in = NULL;
1093
1094 filename = ConfigFileEntry.configfile;
1095
1096 /* We need to know the initial filename for the yyerror() to report
1097 FIXME: The full path is in conffilenamebuf first time since we
1098 dont know anything else
1099
1100 - Gozem 2002-07-21
1101 */
1102 rb_strlcpy(conffilebuf, filename, sizeof(conffilebuf));
1103
1104 if((conf_fbfile_in = fopen(filename, "r")) == NULL)
1105 {
1106 if(cold)
1107 {
1108 ilog(L_MAIN, "Failed in reading configuration file %s", filename);
1109 exit(-1);
1110 }
1111 else
1112 {
1113 sendto_realops_snomask(SNO_GENERAL, L_ALL,
1114 "Can't open file '%s' - aborting rehash!", filename);
1115 return;
1116 }
1117 }
1118
1119 if(!cold)
1120 {
1121 clear_out_old_conf();
1122 }
1123
1124 read_conf(conf_fbfile_in);
1125 fclose(conf_fbfile_in);
1126 }
1127
1128 /*
1129 * free an alias{} entry.
1130 */
1131 static void
1132 free_alias_cb(struct DictionaryElement *ptr, void *unused)
1133 {
1134 struct alias_entry *aptr = ptr->data;
1135
1136 rb_free(aptr->name);
1137 rb_free(aptr->target);
1138 rb_free(aptr);
1139 }
1140
1141 /*
1142 * clear_out_old_conf
1143 *
1144 * inputs - none
1145 * output - none
1146 * side effects - Clear out the old configuration
1147 */
1148 static void
1149 clear_out_old_conf(void)
1150 {
1151 struct Class *cltmp;
1152 rb_dlink_node *ptr;
1153 rb_dlink_node *next_ptr;
1154
1155 /*
1156 * don't delete the class table, rather mark all entries
1157 * for deletion. The table is cleaned up by check_class. - avalon
1158 */
1159 RB_DLINK_FOREACH(ptr, class_list.head)
1160 {
1161 cltmp = ptr->data;
1162 MaxUsers(cltmp) = -1;
1163 }
1164
1165 clear_out_address_conf();
1166 clear_s_newconf();
1167
1168 /* clean out module paths */
1169 #ifndef STATIC_MODULES
1170 mod_clear_paths();
1171 mod_add_path(MODULE_DIR);
1172 mod_add_path(MODULE_DIR "/autoload");
1173 #endif
1174
1175 /* clean out ServerInfo */
1176 rb_free(ServerInfo.description);
1177 ServerInfo.description = NULL;
1178 rb_free(ServerInfo.network_name);
1179 ServerInfo.network_name = NULL;
1180 rb_free(ServerInfo.network_desc);
1181 ServerInfo.network_desc = NULL;
1182
1183 ServerInfo.ssld_count = 1;
1184
1185 /* clean out AdminInfo */
1186 rb_free(AdminInfo.name);
1187 AdminInfo.name = NULL;
1188 rb_free(AdminInfo.email);
1189 AdminInfo.email = NULL;
1190 rb_free(AdminInfo.description);
1191 AdminInfo.description = NULL;
1192
1193 /* operator{} and class{} blocks are freed above */
1194 /* clean out listeners */
1195 close_listeners();
1196
1197 /* auth{}, quarantine{}, shared{}, connect{}, kill{}, deny{}, exempt{}
1198 * and gecos{} blocks are freed above too
1199 */
1200
1201 /* clean out general */
1202 rb_free(ConfigFileEntry.kline_reason);
1203 ConfigFileEntry.kline_reason = NULL;
1204
1205 RB_DLINK_FOREACH_SAFE(ptr, next_ptr, service_list.head)
1206 {
1207 rb_free(ptr->data);
1208 rb_dlinkDestroy(ptr, &service_list);
1209 }
1210
1211 /* remove any aliases... -- nenolod */
1212 if (alias_dict != NULL)
1213 {
1214 irc_dictionary_destroy(alias_dict, free_alias_cb, NULL);
1215 alias_dict = NULL;
1216 }
1217
1218 destroy_blacklists();
1219
1220 privilegeset_mark_all_illegal();
1221
1222 /* OK, that should be everything... */
1223 }
1224
1225
1226 /*
1227 * conf_add_class_to_conf
1228 * inputs - pointer to config item
1229 * output - NONE
1230 * side effects - Add a class pointer to a conf
1231 */
1232
1233 void
1234 conf_add_class_to_conf(struct ConfItem *aconf)
1235 {
1236 if(aconf->className == NULL)
1237 {
1238 aconf->className = rb_strdup("default");
1239 ClassPtr(aconf) = default_class;
1240 return;
1241 }
1242
1243 ClassPtr(aconf) = find_class(aconf->className);
1244
1245 if(ClassPtr(aconf) == default_class)
1246 {
1247 if(aconf->status == CONF_CLIENT)
1248 {
1249 conf_report_error(
1250 "Using default class for missing class \"%s\" in auth{} for %s@%s",
1251 aconf->className, aconf->user, aconf->host);
1252 }
1253
1254 rb_free(aconf->className);
1255 aconf->className = rb_strdup("default");
1256 return;
1257 }
1258
1259 if(ConfMaxUsers(aconf) < 0)
1260 {
1261 ClassPtr(aconf) = default_class;
1262 rb_free(aconf->className);
1263 aconf->className = rb_strdup("default");
1264 return;
1265 }
1266 }
1267
1268 /*
1269 * conf_add_d_conf
1270 * inputs - pointer to config item
1271 * output - NONE
1272 * side effects - Add a d/D line
1273 */
1274 void
1275 conf_add_d_conf(struct ConfItem *aconf)
1276 {
1277 if(aconf->host == NULL)
1278 return;
1279
1280 aconf->user = NULL;
1281
1282 /* XXX - Should 'd' ever be in the old conf? For new conf we don't
1283 * need this anyway, so I will disable it for now... -A1kmm
1284 */
1285
1286 if(parse_netmask(aconf->host, NULL, NULL) == HM_HOST)
1287 {
1288 ilog(L_MAIN, "Invalid Dline %s ignored", aconf->host);
1289 free_conf(aconf);
1290 }
1291 else
1292 {
1293 add_conf_by_address(aconf->host, CONF_DLINE, NULL, NULL, aconf);
1294 }
1295 }
1296
1297 static char *
1298 strip_tabs(char *dest, const char *src, size_t len)
1299 {
1300 char *d = dest;
1301
1302 if(dest == NULL || src == NULL)
1303 return NULL;
1304
1305 rb_strlcpy(dest, src, len);
1306
1307 while(*d)
1308 {
1309 if(*d == '\t')
1310 *d = ' ';
1311 d++;
1312 }
1313 return dest;
1314 }
1315
1316 /*
1317 * yyerror
1318 *
1319 * inputs - message from parser
1320 * output - none
1321 * side effects - message to opers and log file entry is made
1322 */
1323 void
1324 yyerror(const char *msg)
1325 {
1326 char newlinebuf[BUFSIZE];
1327
1328 strip_tabs(newlinebuf, linebuf, strlen(linebuf));
1329
1330 ierror("\"%s\", line %d: %s at '%s'", conffilebuf, lineno + 1, msg, newlinebuf);
1331 sendto_realops_snomask(SNO_GENERAL, L_ALL, "\"%s\", line %d: %s at '%s'",
1332 conffilebuf, lineno + 1, msg, newlinebuf);
1333
1334 }
1335
1336 int
1337 conf_fgets(char *lbuf, int max_size, FILE * fb)
1338 {
1339 char *buff;
1340
1341 if((buff = fgets(lbuf, max_size, fb)) == NULL)
1342 return (0);
1343
1344 return (strlen(lbuf));
1345 }
1346
1347 int
1348 conf_yy_fatal_error(const char *msg)
1349 {
1350 return (0);
1351 }
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