/[svn]/ircd-hybrid/trunk/src/conf.c
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Contents of /ircd-hybrid/trunk/src/conf.c

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Revision 8593 - (show annotations)
Sun Oct 21 18:11:04 2018 UTC (3 years, 9 months ago) by michael
File MIME type: text/x-chdr
File size: 43286 byte(s)
- ipcache: rewrite to use patricia

1 /*
2 * ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3 *
4 * Copyright (c) 1997-2018 ircd-hybrid development team
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19 * USA
20 */
21
22 /*! \file conf.c
23 * \brief Configuration file functions.
24 * \version $Id$
25 */
26
27 #include "stdinc.h"
28 #include "list.h"
29 #include "ircd_defs.h"
30 #include "parse.h"
31 #include "conf.h"
32 #include "conf_cluster.h"
33 #include "conf_gecos.h"
34 #include "conf_pseudo.h"
35 #include "conf_resv.h"
36 #include "conf_service.h"
37 #include "conf_shared.h"
38 #include "server.h"
39 #include "channel.h"
40 #include "client.h"
41 #include "event.h"
42 #include "irc_string.h"
43 #include "s_bsd.h"
44 #include "ircd.h"
45 #include "listener.h"
46 #include "hostmask.h"
47 #include "modules.h"
48 #include "numeric.h"
49 #include "fdlist.h"
50 #include "log.h"
51 #include "send.h"
52 #include "memory.h"
53 #include "res.h"
54 #include "user.h"
55 #include "channel_mode.h"
56 #include "misc.h"
57 #include "conf_db.h"
58 #include "conf_class.h"
59 #include "motd.h"
60 #include "ipcache.h"
61 #include "isupport.h"
62 #include "whowas.h"
63
64
65 struct config_channel_entry ConfigChannel;
66 struct config_serverhide_entry ConfigServerHide;
67 struct config_general_entry ConfigGeneral;
68 struct config_log_entry ConfigLog = { .use_logging = 1 };
69 struct config_serverinfo_entry ConfigServerInfo;
70 struct config_admin_entry ConfigAdminInfo;
71 struct conf_parser_context conf_parser_ctx;
72
73 /* general conf items link list root, other than k lines etc. */
74 dlink_list connect_items;
75 dlink_list operator_items;
76
77 extern unsigned int lineno;
78 extern char linebuf[];
79 extern char conffilebuf[IRCD_BUFSIZE];
80 extern int yyparse(); /* defined in y.tab.c */
81
82
83 /* conf_dns_callback()
84 *
85 * inputs - pointer to struct MaskItem
86 * - pointer to DNSReply reply
87 * output - none
88 * side effects - called when resolver query finishes
89 * if the query resulted in a successful search, hp will contain
90 * a non-null pointer, otherwise hp will be null.
91 * if successful save hp in the conf item it was called with
92 */
93 static void
94 conf_dns_callback(void *vptr, const struct irc_ssaddr *addr, const char *name, size_t namelength)
95 {
96 struct MaskItem *const conf = vptr;
97
98 conf->dns_pending = 0;
99
100 if (addr)
101 memcpy(&conf->addr, addr, sizeof(conf->addr));
102 else
103 conf->dns_failed = 1;
104 }
105
106 /* conf_dns_lookup()
107 *
108 * do a nameserver lookup of the conf host
109 * if the conf entry is currently doing a ns lookup do nothing, otherwise
110 * allocate a dns_query and start ns lookup.
111 */
112 static void
113 conf_dns_lookup(struct MaskItem *conf)
114 {
115 if (conf->dns_pending)
116 return;
117
118 conf->dns_pending = 1;
119
120 if (conf->aftype == AF_INET)
121 gethost_byname_type(conf_dns_callback, conf, conf->host, T_A);
122 else
123 gethost_byname_type(conf_dns_callback, conf, conf->host, T_AAAA);
124 }
125
126 /* map_to_list()
127 *
128 * inputs - ConfType conf
129 * output - pointer to dlink_list to use
130 * side effects - none
131 */
132 static dlink_list *
133 map_to_list(enum maskitem_type type)
134 {
135 switch (type)
136 {
137 case CONF_OPER:
138 return &operator_items;
139 break;
140 case CONF_SERVER:
141 return &connect_items;
142 break;
143 default:
144 return NULL;
145 }
146 }
147
148 struct MaskItem *
149 conf_make(enum maskitem_type type)
150 {
151 struct MaskItem *const conf = xcalloc(sizeof(*conf));
152 dlink_list *list = NULL;
153
154 conf->type = type;
155 conf->active = 1;
156 conf->aftype = AF_INET;
157
158 if ((list = map_to_list(type)))
159 dlinkAdd(conf, &conf->node, list);
160 return conf;
161 }
162
163 void
164 conf_free(struct MaskItem *conf)
165 {
166 dlink_node *node = NULL, *node_next = NULL;
167 dlink_list *list = NULL;
168
169 if ((list = map_to_list(conf->type)))
170 dlinkFindDelete(list, conf);
171
172 xfree(conf->name);
173
174 if (conf->dns_pending)
175 delete_resolver_queries(conf);
176 if (conf->passwd)
177 memset(conf->passwd, 0, strlen(conf->passwd));
178 if (conf->spasswd)
179 memset(conf->spasswd, 0, strlen(conf->spasswd));
180
181 conf->class = NULL;
182
183 xfree(conf->passwd);
184 xfree(conf->spasswd);
185 xfree(conf->reason);
186 xfree(conf->certfp);
187 xfree(conf->whois);
188 xfree(conf->user);
189 xfree(conf->host);
190 xfree(conf->cipher_list);
191
192 DLINK_FOREACH_SAFE(node, node_next, conf->hub_list.head)
193 {
194 xfree(node->data);
195 dlinkDelete(node, &conf->hub_list);
196 free_dlink_node(node);
197 }
198
199 DLINK_FOREACH_SAFE(node, node_next, conf->leaf_list.head)
200 {
201 xfree(node->data);
202 dlinkDelete(node, &conf->leaf_list);
203 free_dlink_node(node);
204 }
205
206 xfree(conf);
207 }
208
209 /* attach_iline()
210 *
211 * inputs - client pointer
212 * - conf pointer
213 * output -
214 * side effects - do actual attach
215 */
216 static int
217 attach_iline(struct Client *client_p, struct MaskItem *conf)
218 {
219 const struct ClassItem *const class = conf->class;
220 int a_limit_reached = 0;
221
222 struct ip_entry *ipcache = ipcache_record_find_or_add(&client_p->ip);
223 ++ipcache->count_local;
224 AddFlag(client_p, FLAGS_IPHASH);
225
226 if (class->max_total && class->ref_count >= class->max_total)
227 a_limit_reached = 1;
228 else if (class->max_perip_local && ipcache->count_local > class->max_perip_local)
229 a_limit_reached = 1;
230 else if (class->max_perip_global &&
231 (ipcache->count_local + ipcache->count_remote) > class->max_perip_global)
232 a_limit_reached = 1;
233
234 if (a_limit_reached)
235 {
236 if (!IsConfExemptLimits(conf))
237 return TOO_MANY; /* Already at maximum allowed */
238
239 sendto_one_notice(client_p, &me, ":*** Your connection class is full, "
240 "but you have exceed_limit = yes;");
241 }
242
243 return conf_attach(client_p, conf);
244 }
245
246 /* verify_access()
247 *
248 * inputs - pointer to client to verify
249 * output - 0 if success -'ve if not
250 * side effect - find the first (best) I line to attach.
251 */
252 static int
253 verify_access(struct Client *client_p)
254 {
255 struct MaskItem *conf = NULL;
256
257 if (HasFlag(client_p, FLAGS_GOTID))
258 {
259 conf = find_address_conf(client_p->host, client_p->username,
260 &client_p->ip,
261 client_p->ip.ss.ss_family,
262 client_p->connection->password);
263 }
264 else
265 {
266 char non_ident[USERLEN + 1] = "~";
267
268 strlcpy(non_ident + 1, client_p->username, sizeof(non_ident) - 1);
269 conf = find_address_conf(client_p->host, non_ident,
270 &client_p->ip,
271 client_p->ip.ss.ss_family,
272 client_p->connection->password);
273 }
274
275 if (!conf)
276 return NOT_AUTHORIZED;
277
278 assert(IsConfClient(conf) || IsConfKill(conf));
279
280 if (IsConfClient(conf))
281 {
282 if (IsConfRedir(conf))
283 {
284 sendto_one_numeric(client_p, &me, RPL_REDIR,
285 conf->name ? conf->name : "",
286 conf->port);
287 return NOT_AUTHORIZED;
288 }
289
290 if (IsConfDoSpoofIp(conf))
291 {
292 if (IsConfSpoofNotice(conf))
293 sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE, "%s spoofing: %s as %s",
294 client_p->name, client_p->host, conf->name);
295
296 strlcpy(client_p->host, conf->name, sizeof(client_p->host));
297 }
298
299 return attach_iline(client_p, conf);
300 }
301
302 sendto_one_notice(client_p, &me, ":*** Banned: %s", conf->reason);
303 return BANNED_CLIENT;
304 }
305
306 /* check_client()
307 *
308 * inputs - pointer to client
309 * output - 0 = Success
310 * NOT_AUTHORIZED (-1) = Access denied (no I line match)
311 * IRCD_SOCKET_ERROR (-2) = Bad socket.
312 * I_LINE_FULL (-3) = I-line is full
313 * TOO_MANY (-4) = Too many connections from hostname
314 * BANNED_CLIENT (-5) = K-lined
315 * side effects - Ordinary client access check.
316 * Look for conf lines which have the same
317 * status as the flags passed.
318 */
319 int
320 check_client(struct Client *source_p)
321 {
322 int i;
323
324 if ((i = verify_access(source_p)))
325 ilog(LOG_TYPE_IRCD, "Access denied: %s[%s]",
326 source_p->name, source_p->sockhost);
327
328 switch (i)
329 {
330 case TOO_MANY:
331 sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE,
332 "Too many on IP for %s (%s).",
333 client_get_name(source_p, SHOW_IP),
334 source_p->sockhost);
335 ilog(LOG_TYPE_IRCD, "Too many connections on IP from %s.",
336 client_get_name(source_p, SHOW_IP));
337 ++ServerStats.is_ref;
338 exit_client(source_p, "No more connections allowed on that IP");
339 break;
340
341 case I_LINE_FULL:
342 sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE,
343 "auth {} block is full for %s (%s).",
344 client_get_name(source_p, SHOW_IP),
345 source_p->sockhost);
346 ilog(LOG_TYPE_IRCD, "Too many connections from %s.",
347 client_get_name(source_p, SHOW_IP));
348 ++ServerStats.is_ref;
349 exit_client(source_p, "No more connections allowed in your connection class");
350 break;
351
352 case NOT_AUTHORIZED:
353 /* jdc - lists server name & port connections are on */
354 /* a purely cosmetical change */
355 sendto_realops_flags(UMODE_UNAUTH, L_ALL, SEND_NOTICE,
356 "Unauthorized client connection from %s on [%s/%u].",
357 client_get_name(source_p, SHOW_IP),
358 source_p->connection->listener->name,
359 source_p->connection->listener->port);
360 ilog(LOG_TYPE_IRCD, "Unauthorized client connection from %s on [%s/%u].",
361 client_get_name(source_p, SHOW_IP),
362 source_p->connection->listener->name,
363 source_p->connection->listener->port);
364
365 ++ServerStats.is_ref;
366 exit_client(source_p, "You are not authorized to use this server");
367 break;
368
369 case BANNED_CLIENT:
370 ++ServerStats.is_ref;
371 exit_client(source_p, "Banned");
372 break;
373
374 case 0:
375 default:
376 break;
377 }
378
379 return !(i < 0);
380 }
381
382 /*! \brief Disassociate configuration from the client. Also removes a class
383 * from the list if marked for deleting.
384 * \param client_p Client to operate on
385 * \param type Type of conf to detach
386 */
387 void
388 conf_detach(struct Client *client_p, enum maskitem_type type)
389 {
390 dlink_node *node, *node_next;
391
392 DLINK_FOREACH_SAFE(node, node_next, client_p->connection->confs.head)
393 {
394 struct MaskItem *conf = node->data;
395
396 assert(conf->type & (CONF_CLIENT | CONF_OPER | CONF_SERVER));
397 assert(conf->ref_count > 0);
398 assert(conf->class->ref_count > 0);
399
400 if (!(conf->type & type))
401 continue;
402
403 dlinkDelete(node, &client_p->connection->confs);
404 free_dlink_node(node);
405
406 if (conf->type == CONF_CLIENT)
407 remove_from_cidr_check(&client_p->ip, conf->class);
408
409 if (--conf->class->ref_count == 0 && conf->class->active == 0)
410 {
411 class_free(conf->class);
412 conf->class = NULL;
413 }
414
415 if (--conf->ref_count == 0 && conf->active == 0)
416 conf_free(conf);
417 }
418 }
419
420 /*! \brief Associate a specific configuration entry to a *local* client (this
421 * is the one which used in accepting the connection). Note, that this
422 * automatically changes the attachment if there was an old one.
423 * \param client_p Client to attach the conf to
424 * \param conf Configuration record to attach
425 */
426 int
427 conf_attach(struct Client *client_p, struct MaskItem *conf)
428 {
429 if (dlinkFind(&client_p->connection->confs, conf))
430 return 1;
431
432 if (conf->type == CONF_CLIENT)
433 if (cidr_limit_reached(IsConfExemptLimits(conf),
434 &client_p->ip, conf->class))
435 return TOO_MANY; /* Already at maximum allowed */
436
437 conf->class->ref_count++;
438 conf->ref_count++;
439
440 dlinkAdd(conf, make_dlink_node(), &client_p->connection->confs);
441
442 return 0;
443 }
444
445 /* find_conf_name()
446 *
447 * inputs - pointer to conf link list to search
448 * - pointer to name to find
449 * - int mask of type of conf to find
450 * output - NULL or pointer to conf found
451 * side effects - find a conf entry which matches the name
452 * and has the given mask.
453 */
454 struct MaskItem *
455 find_conf_name(dlink_list *list, const char *name, enum maskitem_type type)
456 {
457 dlink_node *node = NULL;
458
459 DLINK_FOREACH(node, list->head)
460 {
461 struct MaskItem *conf = node->data;
462
463 if (conf->type == type)
464 {
465 if (conf->name && !irccmp(conf->name, name))
466 return conf;
467 }
468 }
469
470 return NULL;
471 }
472
473 /*! \brief Find a connect {} conf that has a name that matches \a name.
474 * \param name Name to match
475 * \param compare Pointer to function to be used for string matching
476 */
477 struct MaskItem *
478 connect_find(const char *name, int (*compare)(const char *, const char *))
479 {
480 dlink_node *node;
481
482 DLINK_FOREACH(node, connect_items.head)
483 {
484 struct MaskItem *conf = node->data;
485
486 if (!compare(name, conf->name))
487 return conf;
488 }
489
490 return NULL;
491 }
492
493 /* find_exact_name_conf()
494 *
495 * inputs - type of link list to look in
496 * - pointer to name string to find
497 * - pointer to user
498 * - pointer to host
499 * output - NULL or pointer to found struct MaskItem
500 * side effects - looks for an exact match on name field
501 */
502 struct MaskItem *
503 operator_find(const struct Client *who, const char *name)
504 {
505 dlink_node *node = NULL;
506
507 DLINK_FOREACH(node, operator_items.head)
508 {
509 struct MaskItem *conf = node->data;
510
511 if (!irccmp(conf->name, name))
512 {
513 if (!who)
514 return conf;
515
516 if (!match(conf->user, who->username))
517 {
518 switch (conf->htype)
519 {
520 case HM_HOST:
521 if (!match(conf->host, who->host) || !match(conf->host, who->sockhost))
522 if (!conf->class->max_total || conf->class->ref_count < conf->class->max_total)
523 return conf;
524 break;
525 case HM_IPV4:
526 if (who->ip.ss.ss_family == AF_INET)
527 if (match_ipv4(&who->ip, &conf->addr, conf->bits))
528 if (!conf->class->max_total || conf->class->ref_count < conf->class->max_total)
529 return conf;
530 break;
531 case HM_IPV6:
532 if (who->ip.ss.ss_family == AF_INET6)
533 if (match_ipv6(&who->ip, &conf->addr, conf->bits))
534 if (!conf->class->max_total || conf->class->ref_count < conf->class->max_total)
535 return conf;
536 break;
537 default:
538 assert(0);
539 }
540 }
541 }
542 }
543
544 return NULL;
545 }
546
547 /* set_default_conf()
548 *
549 * inputs - NONE
550 * output - NONE
551 * side effects - Set default values here.
552 * This is called **PRIOR** to parsing the
553 * configuration file. If you want to do some validation
554 * of values later, put them in validate_conf().
555 */
556 static void
557 set_default_conf(void)
558 {
559 /* verify init_class() ran, this should be an unnecessary check
560 * but its not much work.
561 */
562 assert(class_default == class_get_list()->tail->data);
563
564 ConfigServerInfo.network_name = xstrdup(NETWORK_NAME_DEFAULT);
565 ConfigServerInfo.network_desc = xstrdup(NETWORK_DESC_DEFAULT);
566
567 memset(&ConfigServerInfo.ip, 0, sizeof(ConfigServerInfo.ip));
568 ConfigServerInfo.specific_ipv4_vhost = 0;
569 memset(&ConfigServerInfo.ip6, 0, sizeof(ConfigServerInfo.ip6));
570 ConfigServerInfo.specific_ipv6_vhost = 0;
571
572 ConfigServerInfo.default_max_clients = MAXCLIENTS_MAX;
573 ConfigServerInfo.max_nick_length = 9;
574 ConfigServerInfo.max_topic_length = 80;
575 ConfigServerInfo.hub = 0;
576
577 log_iterate(log_free);
578
579 ConfigLog.use_logging = 1;
580
581 ConfigChannel.disable_fake_channels = 0;
582 ConfigChannel.invite_client_count = 10;
583 ConfigChannel.invite_client_time = 300;
584 ConfigChannel.invite_delay_channel = 5;
585 ConfigChannel.invite_expire_time = 1800;
586 ConfigChannel.knock_client_count = 1;
587 ConfigChannel.knock_client_time = 300;
588 ConfigChannel.knock_delay_channel = 60;
589 ConfigChannel.max_channels = 25;
590 ConfigChannel.max_invites = 20;
591 ConfigChannel.max_bans = 100;
592 ConfigChannel.max_bans_large = 500;
593 ConfigChannel.default_join_flood_count = 18;
594 ConfigChannel.default_join_flood_time = 6;
595
596 ConfigServerHide.flatten_links = 0;
597 ConfigServerHide.flatten_links_delay = 300;
598 ConfigServerHide.hidden = 0;
599 ConfigServerHide.hide_servers = 0;
600 ConfigServerHide.hide_services = 0;
601 ConfigServerHide.hidden_name = xstrdup(NETWORK_NAME_DEFAULT);
602 ConfigServerHide.hide_server_ips = 0;
603 ConfigServerHide.disable_remote_commands = 0;
604
605 ConfigGeneral.away_count = 2;
606 ConfigGeneral.away_time = 10;
607 ConfigGeneral.max_watch = 50;
608 ConfigGeneral.whowas_history_length = 15000;
609 ConfigGeneral.cycle_on_host_change = 1;
610 ConfigGeneral.dline_min_cidr = 16;
611 ConfigGeneral.dline_min_cidr6 = 48;
612 ConfigGeneral.kline_min_cidr = 16;
613 ConfigGeneral.kline_min_cidr6 = 48;
614 ConfigGeneral.invisible_on_connect = 1;
615 ConfigGeneral.tkline_expire_notices = 1;
616 ConfigGeneral.ignore_bogus_ts = 0;
617 ConfigGeneral.disable_auth = 0;
618 ConfigGeneral.kill_chase_time_limit = 90;
619 ConfigGeneral.default_floodcount = 8;
620 ConfigGeneral.default_floodtime = 1;
621 ConfigGeneral.failed_oper_notice = 1;
622 ConfigGeneral.dots_in_ident = 0;
623 ConfigGeneral.min_nonwildcard = 4;
624 ConfigGeneral.min_nonwildcard_simple = 3;
625 ConfigGeneral.max_accept = 50;
626 ConfigGeneral.anti_nick_flood = 0;
627 ConfigGeneral.max_nick_time = 20;
628 ConfigGeneral.max_nick_changes = 5;
629 ConfigGeneral.anti_spam_exit_message_time = 0;
630 ConfigGeneral.ts_warn_delta = 30;
631 ConfigGeneral.ts_max_delta = 600;
632 ConfigGeneral.warn_no_connect_block = 1;
633 ConfigGeneral.stats_e_disabled = 0;
634 ConfigGeneral.stats_i_oper_only = 1; /* 1 = masked */
635 ConfigGeneral.stats_k_oper_only = 1; /* 1 = masked */
636 ConfigGeneral.stats_o_oper_only = 1;
637 ConfigGeneral.stats_m_oper_only = 1;
638 ConfigGeneral.stats_P_oper_only = 0;
639 ConfigGeneral.stats_u_oper_only = 0;
640 ConfigGeneral.caller_id_wait = 60;
641 ConfigGeneral.opers_bypass_callerid = 1;
642 ConfigGeneral.pace_wait = 10;
643 ConfigGeneral.pace_wait_simple = 1;
644 ConfigGeneral.short_motd = 0;
645 ConfigGeneral.ping_cookie = 0;
646 ConfigGeneral.no_oper_flood = 0;
647 ConfigGeneral.max_targets = MAX_TARGETS_DEFAULT;
648 ConfigGeneral.oper_only_umodes = UMODE_DEBUG | UMODE_LOCOPS | UMODE_HIDDEN | UMODE_FARCONNECT |
649 UMODE_UNAUTH | UMODE_EXTERNAL | UMODE_BOTS | UMODE_NCHANGE |
650 UMODE_SPY | UMODE_FULL | UMODE_SKILL | UMODE_REJ | UMODE_CCONN;
651 ConfigGeneral.oper_umodes = UMODE_BOTS | UMODE_LOCOPS | UMODE_SERVNOTICE | UMODE_WALLOP;
652 ConfigGeneral.throttle_count = 1;
653 ConfigGeneral.throttle_time = 1;
654 }
655
656 static void
657 validate_conf(void)
658 {
659 if (EmptyString(ConfigServerInfo.network_name))
660 ConfigServerInfo.network_name = xstrdup(NETWORK_NAME_DEFAULT);
661
662 if (EmptyString(ConfigServerInfo.network_desc))
663 ConfigServerInfo.network_desc = xstrdup(NETWORK_DESC_DEFAULT);
664 }
665
666 /* read_conf()
667 *
668 * inputs - file descriptor pointing to config file to use
669 * output - None
670 * side effects - Read configuration file.
671 */
672 static void
673 read_conf(FILE *file)
674 {
675 lineno = 1;
676
677 set_default_conf(); /* Set default values prior to conf parsing */
678 conf_parser_ctx.pass = 1;
679 yyparse(); /* Pick up the classes first */
680
681 rewind(file);
682
683 conf_parser_ctx.pass = 2;
684 yyparse(); /* Load the values from the conf */
685 validate_conf(); /* Check to make sure some values are still okay. */
686 /* Some global values are also loaded here. */
687 whowas_trim(); /* Attempt to trim whowas list if necessary */
688 class_delete_marked(); /* Delete unused classes that are marked for deletion */
689 }
690
691 /* conf_rehash()
692 *
693 * Actual REHASH service routine. Called with sig == 0 if it has been called
694 * as a result of an operator issuing this command, else assume it has been
695 * called as a result of the server receiving a HUP signal.
696 */
697 void
698 conf_rehash(int sig)
699 {
700 if (sig)
701 {
702 sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
703 "Got signal SIGHUP, reloading configuration file(s)");
704 ilog(LOG_TYPE_IRCD, "Got signal SIGHUP, reloading configuration file(s)");
705 }
706
707 restart_resolver();
708
709 /* don't close listeners until we know we can go ahead with the rehash */
710
711 read_conf_files(0);
712
713 load_conf_modules();
714 check_conf_klines();
715 }
716
717 /* lookup_confhost()
718 *
719 * start DNS lookups of all hostnames in the conf
720 * line and convert an IP addresses in a.b.c.d number for to IP#s.
721 */
722 void
723 lookup_confhost(struct MaskItem *conf)
724 {
725 struct addrinfo hints, *res;
726
727 /*
728 * Do name lookup now on hostnames given and store the
729 * ip numbers in conf structure.
730 */
731 memset(&hints, 0, sizeof(hints));
732
733 hints.ai_family = AF_UNSPEC;
734 hints.ai_socktype = SOCK_STREAM;
735
736 /* Get us ready for a bind() and don't bother doing dns lookup */
737 hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
738
739 if (getaddrinfo(conf->host, NULL, &hints, &res))
740 {
741 conf_dns_lookup(conf);
742 return;
743 }
744
745 assert(res);
746
747 memcpy(&conf->addr, res->ai_addr, res->ai_addrlen);
748 conf->addr.ss_len = res->ai_addrlen;
749 conf->addr.ss.ss_family = res->ai_family;
750
751 freeaddrinfo(res);
752 }
753
754 /* conf_connect_allowed()
755 *
756 * inputs - pointer to inaddr
757 * - int type ipv4 or ipv6
758 * output - BANNED or accepted
759 * side effects - none
760 */
761 int
762 conf_connect_allowed(struct irc_ssaddr *addr, int aftype)
763 {
764 struct ip_entry *ip_found = NULL;
765 const struct MaskItem *conf = find_dline_conf(addr, aftype);
766
767 if (conf)
768 {
769 /* DLINE exempt also gets you out of static limits/pacing... */
770 if (conf->type == CONF_EXEMPT)
771 return 0;
772 return BANNED_CLIENT;
773 }
774
775 ip_found = ipcache_record_find_or_add(addr);
776
777 if ((CurrentTime - ip_found->last_attempt) < ConfigGeneral.throttle_time)
778 {
779 if (ip_found->connection_count >= ConfigGeneral.throttle_count)
780 return TOO_FAST;
781
782 ++ip_found->connection_count;
783 }
784 else
785 ip_found->connection_count = 1;
786
787 ip_found->last_attempt = CurrentTime;
788 return 0;
789 }
790
791 /* cleanup_tklines()
792 *
793 * inputs - NONE
794 * output - NONE
795 * side effects - call function to expire temporary k/d lines
796 * This is an event started off in ircd.c
797 */
798 void
799 cleanup_tklines(void *unused)
800 {
801 hostmask_expire_temporary();
802 gecos_expire();
803 resv_expire();
804 }
805
806 /* oper_privs_as_string()
807 *
808 * inputs - pointer to client_p
809 * output - pointer to static string showing oper privs
810 * side effects - return as string, the oper privs as derived from port
811 */
812 static const struct oper_flags
813 {
814 const unsigned int flag;
815 const unsigned char c;
816 } flag_table[] = {
817 { OPER_FLAG_ADMIN, 'A' },
818 { OPER_FLAG_CLOSE, 'B' },
819 { OPER_FLAG_CONNECT, 'C' },
820 { OPER_FLAG_CONNECT_REMOTE, 'D' },
821 { OPER_FLAG_DIE, 'E' },
822 { OPER_FLAG_DLINE, 'F' },
823 { OPER_FLAG_GLOBOPS, 'G' },
824 { OPER_FLAG_JOIN_RESV, 'H' },
825 { OPER_FLAG_KILL, 'I' },
826 { OPER_FLAG_KILL_REMOTE, 'J' },
827 { OPER_FLAG_KLINE, 'K' },
828 { OPER_FLAG_LOCOPS, 'L' },
829 { OPER_FLAG_MODULE, 'M' },
830 { OPER_FLAG_NICK_RESV, 'N' },
831 { OPER_FLAG_OPME, 'O' },
832 { OPER_FLAG_REHASH, 'P' },
833 { OPER_FLAG_REMOTEBAN, 'Q' },
834 { OPER_FLAG_RESTART, 'R' },
835 { OPER_FLAG_RESV, 'S' },
836 { OPER_FLAG_SET, 'T' },
837 { OPER_FLAG_SQUIT, 'U' },
838 { OPER_FLAG_SQUIT_REMOTE, 'V' },
839 { OPER_FLAG_UNDLINE, 'W' },
840 { OPER_FLAG_UNKLINE, 'X' },
841 { OPER_FLAG_UNRESV, 'Y' },
842 { OPER_FLAG_UNXLINE, 'Z' },
843 { OPER_FLAG_WALLOPS, 'a' },
844 { OPER_FLAG_XLINE, 'b' },
845 { 0, '\0' }
846 };
847
848 const char *
849 oper_privs_as_string(const unsigned int flags)
850 {
851 static char buf[sizeof(flag_table) / sizeof(flag_table[0])];
852 char *p = buf;
853
854 for (const struct oper_flags *tab = flag_table; tab->flag; ++tab)
855 if (flags & tab->flag)
856 *p++ = tab->c;
857
858 if (p == buf)
859 *p++ = '0';
860
861 *p = '\0';
862
863 return buf;
864 }
865
866 /*
867 * Input: A client to find the active operator {} name for.
868 * Output: The nick!user@host{oper} of the oper.
869 * "oper" is server name for remote opers
870 * Side effects: None.
871 */
872 const char *
873 get_oper_name(const struct Client *client_p)
874 {
875 static char buffer[IRCD_BUFSIZE];
876
877 if (IsServer(client_p))
878 return client_p->name;
879
880 if (MyConnect(client_p))
881 {
882 const dlink_node *const node = client_p->connection->confs.head;
883
884 if (node)
885 {
886 const struct MaskItem *const conf = node->data;
887
888 if (conf->type == CONF_OPER)
889 {
890 snprintf(buffer, sizeof(buffer), "%s!%s@%s{%s}", client_p->name,
891 client_p->username, client_p->host, conf->name);
892 return buffer;
893 }
894 }
895
896 /*
897 * Probably should assert here for now. If there is an oper out there
898 * with no operator {} conf attached, it would be good for us to know...
899 */
900 assert(0); /* Oper without oper conf! */
901 }
902
903 snprintf(buffer, sizeof(buffer), "%s!%s@%s{%s}", client_p->name,
904 client_p->username, client_p->host, client_p->servptr->name);
905 return buffer;
906 }
907
908 /* clear_out_old_conf()
909 *
910 * inputs - none
911 * output - none
912 * side effects - Clear out the old configuration
913 */
914 static void
915 clear_out_old_conf(void)
916 {
917 dlink_node *node = NULL, *node_next = NULL;
918 dlink_list *free_items [] = {
919 &connect_items, &operator_items, NULL
920 };
921
922 dlink_list ** iterator = free_items; /* C is dumb */
923
924 /* We only need to free anything allocated by yyparse() here.
925 * Resetting structs, etc, is taken care of by set_default_conf().
926 */
927
928 for (; *iterator; iterator++)
929 {
930 DLINK_FOREACH_SAFE(node, node_next, (*iterator)->head)
931 {
932 struct MaskItem *conf = node->data;
933
934 conf->active = 0;
935 dlinkDelete(&conf->node, *iterator);
936
937 if (!conf->ref_count)
938 conf_free(conf);
939 }
940 }
941
942 /*
943 * Don't delete the class table, rather mark all entries for deletion.
944 * The table is cleaned up by class_delete_marked. - avalon
945 */
946 class_mark_for_deletion();
947
948 clear_out_address_conf();
949
950 modules_conf_clear(); /* Clear modules {} items */
951
952 motd_clear(); /* Clear motd {} items and re-cache default motd */
953
954 cluster_clear(); /* Clear cluster {} items */
955
956 gecos_clear(); /* Clear gecos {} items */
957
958 resv_clear(); /* Clear resv {} items */
959
960 service_clear(); /* Clear service {} items */
961
962 shared_clear(); /* Clear shared {} items */
963
964 pseudo_clear(); /* Clear pseudo {} items */
965
966 /* Clean out ConfigServerInfo */
967 xfree(ConfigServerInfo.description);
968 ConfigServerInfo.description = NULL;
969 xfree(ConfigServerInfo.network_name);
970 ConfigServerInfo.network_name = NULL;
971 xfree(ConfigServerInfo.network_desc);
972 ConfigServerInfo.network_desc = NULL;
973 xfree(ConfigServerInfo.rsa_private_key_file);
974 ConfigServerInfo.rsa_private_key_file = NULL;
975 xfree(ConfigServerInfo.ssl_certificate_file);
976 ConfigServerInfo.ssl_certificate_file = NULL;
977 xfree(ConfigServerInfo.ssl_dh_param_file);
978 ConfigServerInfo.ssl_dh_param_file = NULL;
979 xfree(ConfigServerInfo.ssl_dh_elliptic_curve);
980 ConfigServerInfo.ssl_dh_elliptic_curve = NULL;
981 xfree(ConfigServerInfo.ssl_cipher_list);
982 ConfigServerInfo.ssl_cipher_list = NULL;
983 xfree(ConfigServerInfo.ssl_message_digest_algorithm);
984 ConfigServerInfo.ssl_message_digest_algorithm = NULL;
985
986 /* Clean out ConfigAdminInfo */
987 xfree(ConfigAdminInfo.name);
988 ConfigAdminInfo.name = NULL;
989 xfree(ConfigAdminInfo.email);
990 ConfigAdminInfo.email = NULL;
991 xfree(ConfigAdminInfo.description);
992 ConfigAdminInfo.description = NULL;
993
994 /* Clean out ConfigServerHide */
995 xfree(ConfigServerHide.flatten_links_file);
996 ConfigServerHide.flatten_links_file = NULL;
997 xfree(ConfigServerHide.hidden_name);
998 ConfigServerHide.hidden_name = NULL;
999
1000 /* Clean out listeners */
1001 listener_close_marked();
1002 }
1003
1004 static void
1005 conf_handle_tls(int cold)
1006 {
1007 if (!tls_new_cred())
1008 {
1009 if (cold)
1010 {
1011 ilog(LOG_TYPE_IRCD, "Error while initializing TLS");
1012 exit(EXIT_FAILURE);
1013 }
1014 else
1015 {
1016 /* Failed to load new settings/certs, old ones remain active */
1017 sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
1018 "Error reloading TLS settings, check the ircd log"); // report_crypto_errors logs this
1019 }
1020 }
1021 }
1022
1023 /* read_conf_files()
1024 *
1025 * inputs - cold start YES or NO
1026 * output - none
1027 * side effects - read all conf files needed, ircd.conf kline.conf etc.
1028 */
1029 void
1030 read_conf_files(int cold)
1031 {
1032 const char *filename = NULL;
1033 char chanmodes[IRCD_BUFSIZE] = "";
1034 char chanlimit[IRCD_BUFSIZE] = "";
1035
1036 conf_parser_ctx.boot = cold;
1037 filename = ConfigGeneral.configfile;
1038
1039 /* We need to know the initial filename for the yyerror() to report
1040 FIXME: The full path is in conffilenamebuf first time since we
1041 don't know anything else
1042
1043 - Gozem 2002-07-21
1044 */
1045 strlcpy(conffilebuf, filename, sizeof(conffilebuf));
1046
1047 if ((conf_parser_ctx.conf_file = fopen(filename, "r")) == NULL)
1048 {
1049 if (cold)
1050 {
1051 ilog(LOG_TYPE_IRCD, "Unable to read configuration file '%s': %s",
1052 filename, strerror(errno));
1053 exit(EXIT_FAILURE);
1054 }
1055 else
1056 {
1057 sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE,
1058 "Unable to read configuration file '%s': %s",
1059 filename, strerror(errno));
1060 return;
1061 }
1062 }
1063
1064 if (!cold)
1065 clear_out_old_conf();
1066
1067 read_conf(conf_parser_ctx.conf_file);
1068 fclose(conf_parser_ctx.conf_file);
1069
1070 log_iterate(log_reopen);
1071 conf_handle_tls(cold);
1072
1073 isupport_add("NICKLEN", NULL, ConfigServerInfo.max_nick_length);
1074 isupport_add("NETWORK", ConfigServerInfo.network_name, -1);
1075
1076 snprintf(chanmodes, sizeof(chanmodes), "beI:%u", ConfigChannel.max_bans);
1077 isupport_add("MAXLIST", chanmodes, -1);
1078 isupport_add("MAXTARGETS", NULL, ConfigGeneral.max_targets);
1079 isupport_add("CHANTYPES", "#", -1);
1080
1081 snprintf(chanlimit, sizeof(chanlimit), "#:%u",
1082 ConfigChannel.max_channels);
1083 isupport_add("CHANLIMIT", chanlimit, -1);
1084 snprintf(chanmodes, sizeof(chanmodes), "%s", "beI,k,l,cimnprstuCLMNORST");
1085 isupport_add("CHANNELLEN", NULL, CHANNELLEN);
1086 isupport_add("TOPICLEN", NULL, ConfigServerInfo.max_topic_length);
1087 isupport_add("CHANMODES", chanmodes, -1);
1088 }
1089
1090 /* conf_add_class_to_conf()
1091 *
1092 * inputs - pointer to config item
1093 * output - NONE
1094 * side effects - Add a class pointer to a conf
1095 */
1096 void
1097 conf_add_class_to_conf(struct MaskItem *conf, const char *name)
1098 {
1099 if (EmptyString(name) || (conf->class = class_find(name, 1)) == NULL)
1100 {
1101 conf->class = class_default;
1102
1103 if (conf->type == CONF_CLIENT || conf->type == CONF_OPER)
1104 sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE,
1105 "Warning *** Defaulting to default class for %s@%s",
1106 conf->user, conf->host);
1107 else
1108 sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE,
1109 "Warning *** Defaulting to default class for %s",
1110 conf->name);
1111 }
1112 }
1113
1114 /* yyerror()
1115 *
1116 * inputs - message from parser
1117 * output - NONE
1118 * side effects - message to opers and log file entry is made
1119 */
1120 void
1121 yyerror(const char *msg)
1122 {
1123 if (conf_parser_ctx.pass != 1)
1124 return;
1125
1126 const char *p = stripws(linebuf);
1127 sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE,
1128 "\"%s\", line %u: %s: %s",
1129 conffilebuf, lineno, msg, p);
1130 ilog(LOG_TYPE_IRCD, "\"%s\", line %u: %s: %s",
1131 conffilebuf, lineno, msg, p);
1132 }
1133
1134 void
1135 conf_error_report(const char *msg)
1136 {
1137 const char *p = stripws(linebuf);
1138 sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE,
1139 "\"%s\", line %u: %s: %s",
1140 conffilebuf, lineno, msg, p);
1141 ilog(LOG_TYPE_IRCD, "\"%s\", line %u: %s: %s",
1142 conffilebuf, lineno, msg, p);
1143 }
1144
1145 /*
1146 * valid_tkline()
1147 *
1148 * inputs - pointer to ascii string to check
1149 * - whether the specified time is in seconds or minutes
1150 * output - -1 not enough parameters
1151 * - 0 if not an integer number, else the number
1152 * side effects - none
1153 * Originally written by Dianora (Diane, db@db.net)
1154 */
1155 uintmax_t
1156 valid_tkline(const char *data, const int minutes)
1157 {
1158 const unsigned char *p = (const unsigned char *)data;
1159 unsigned char tmpch = '\0';
1160 uintmax_t result = 0;
1161
1162 while ((tmpch = *p++))
1163 {
1164 if (!IsDigit(tmpch))
1165 return 0;
1166
1167 result *= 10;
1168 result += (tmpch & 0xF);
1169 }
1170
1171 /*
1172 * In the degenerate case where oper does a /quote kline 0 user@host :reason
1173 * i.e. they specifically use 0, I am going to return 1 instead as a return
1174 * value of non-zero is used to flag it as a temporary kline
1175 */
1176 if (result == 0)
1177 result = 1;
1178
1179 /*
1180 * If the incoming time is in seconds convert it to minutes for the purpose
1181 * of this calculation
1182 */
1183 if (minutes == 0)
1184 result = result / 60;
1185
1186 if (result > MAX_TDKLINE_TIME)
1187 result = MAX_TDKLINE_TIME;
1188
1189 result = result * 60; /* Turn it into seconds */
1190
1191 return result;
1192 }
1193
1194 /* valid_wild_card_simple()
1195 *
1196 * inputs - data to check for sufficient non-wildcard characters
1197 * outputs - 1 if valid, else 0
1198 * side effects - none
1199 */
1200 int
1201 valid_wild_card_simple(const char *data)
1202 {
1203 const unsigned char *p = (const unsigned char *)data;
1204 unsigned char tmpch = '\0';
1205 unsigned int nonwild = 0, wild = 0;
1206
1207 while ((tmpch = *p++))
1208 {
1209 if (tmpch == '\\' && *p)
1210 {
1211 ++p;
1212 if (++nonwild >= ConfigGeneral.min_nonwildcard_simple)
1213 return 1;
1214 }
1215 else if (!IsMWildChar(tmpch))
1216 {
1217 if (++nonwild >= ConfigGeneral.min_nonwildcard_simple)
1218 return 1;
1219 }
1220 else
1221 ++wild;
1222 }
1223
1224 return !wild;
1225 }
1226
1227 /* valid_wild_card()
1228 *
1229 * input - pointer to client
1230 * - int flag, 0 for no warning oper 1 for warning oper
1231 * - count of following varargs to check
1232 * output - 0 if not valid, 1 if valid
1233 * side effects - NOTICE is given to source_p if warn is 1
1234 */
1235 int
1236 valid_wild_card(int count, ...)
1237 {
1238 unsigned char tmpch = '\0';
1239 unsigned int nonwild = 0;
1240 va_list args;
1241
1242 /*
1243 * Now we must check the user and host to make sure there
1244 * are at least NONWILDCHARS non-wildcard characters in
1245 * them, otherwise assume they are attempting to kline
1246 * *@* or some variant of that. This code will also catch
1247 * people attempting to kline *@*.tld, as long as NONWILDCHARS
1248 * is greater than 3. In that case, there are only 3 non-wild
1249 * characters (tld), so if NONWILDCHARS is 4, the kline will
1250 * be disallowed.
1251 * -wnder
1252 */
1253
1254 va_start(args, count);
1255
1256 while (count--)
1257 {
1258 const unsigned char *p = va_arg(args, const unsigned char *);
1259 if (p == NULL)
1260 continue;
1261
1262 while ((tmpch = *p++))
1263 {
1264 if (!IsKWildChar(tmpch))
1265 {
1266 /*
1267 * If we find enough non-wild characters, we can
1268 * break - no point in searching further.
1269 */
1270 if (++nonwild >= ConfigGeneral.min_nonwildcard)
1271 {
1272 va_end(args);
1273 return 1;
1274 }
1275 }
1276 }
1277 }
1278
1279 va_end(args);
1280 return 0;
1281 }
1282
1283 /* find_user_host()
1284 *
1285 * inputs - pointer to client placing kline
1286 * - pointer to user_host_or_nick
1287 * - pointer to user buffer
1288 * - pointer to host buffer
1289 * output - 0 if not ok to kline, 1 to kline i.e. if valid user host
1290 * side effects -
1291 */
1292 static int
1293 find_user_host(struct Client *source_p, char *user_host_or_nick,
1294 char *luser, char *lhost)
1295 {
1296 struct Client *target_p = NULL;
1297 char *hostp = NULL;
1298
1299 if (lhost == NULL)
1300 {
1301 strlcpy(luser, user_host_or_nick, USERLEN*4 + 1);
1302 return 1;
1303 }
1304
1305 if ((hostp = strchr(user_host_or_nick, '@')) || *user_host_or_nick == '*')
1306 {
1307 /* Explicit user@host mask given */
1308 if (hostp) /* I'm a little user@host */
1309 {
1310 *(hostp++) = '\0'; /* short and squat */
1311
1312 if (*user_host_or_nick)
1313 strlcpy(luser, user_host_or_nick, USERLEN*4 + 1); /* here is my user */
1314 else
1315 strcpy(luser, "*");
1316
1317 if (*hostp)
1318 strlcpy(lhost, hostp, HOSTLEN + 1); /* here is my host */
1319 else
1320 strcpy(lhost, "*");
1321 }
1322 else
1323 {
1324 luser[0] = '*'; /* no @ found, assume its *@somehost */
1325 luser[1] = '\0';
1326 strlcpy(lhost, user_host_or_nick, HOSTLEN*4 + 1);
1327 }
1328
1329 return 1;
1330 }
1331 else
1332 {
1333 /* Try to find user@host mask from nick */
1334 /* Okay to use source_p as the first param, because source_p == client_p */
1335 if ((target_p =
1336 find_chasing(source_p, user_host_or_nick)) == NULL)
1337 return 0; /* find_chasing sends ERR_NOSUCHNICK */
1338
1339 if (HasFlag(target_p, FLAGS_EXEMPTKLINE))
1340 {
1341 if (IsClient(source_p))
1342 sendto_one_notice(source_p, &me, ":%s is E-lined", target_p->name);
1343 return 0;
1344 }
1345
1346 /*
1347 * Turn the "user" bit into "*user", blow away '~'
1348 * if found in original user name (non-idented)
1349 */
1350 strlcpy(luser, target_p->username, USERLEN*4 + 1);
1351
1352 if (target_p->username[0] == '~')
1353 luser[0] = '*';
1354
1355 strlcpy(lhost, target_p->sockhost, HOSTLEN*4 + 1);
1356 return 1;
1357 }
1358
1359 return 0;
1360 }
1361
1362 /* XXX should this go into a separate file ? -Dianora */
1363 /* parse_aline
1364 *
1365 * input - pointer to cmd name being used
1366 * - pointer to client using cmd
1367 * - parc parameter count
1368 * - parv[] list of parameters to parse
1369 * - parse_flags bit map of things to test
1370 * - pointer to user or string to parse into
1371 * - pointer to host or NULL to parse into if non NULL
1372 * - pointer to optional tkline time or NULL
1373 * - pointer to target_server to parse into if non NULL
1374 * - pointer to reason to parse into
1375 *
1376 * output - 1 if valid, 0 if not valid
1377 * side effects - A generalised k/d/x etc. line parser,
1378 * "ALINE [time] user@host|string [ON] target :reason"
1379 * will parse returning a parsed user, host if
1380 * h_p pointer is non NULL, string otherwise.
1381 * if tkline_time pointer is non NULL a tk line will be set
1382 * to non zero if found.
1383 * if tkline_time pointer is NULL and tk line is found,
1384 * error is reported.
1385 * if target_server is NULL and an "ON" is found error
1386 * is reported.
1387 * if reason pointer is NULL ignore pointer,
1388 * this allows use of parse_a_line in unkline etc.
1389 *
1390 * - Dianora
1391 */
1392 int
1393 parse_aline(const char *cmd, struct Client *source_p,
1394 int parc, char **parv,
1395 char **up_p, char **h_p, uintmax_t *tkline_time,
1396 char **target_server, char **reason)
1397 {
1398 uintmax_t found_tkline_time=0;
1399 static char default_reason[] = CONF_NOREASON;
1400 static char user[USERLEN*4+1];
1401 static char host[HOSTLEN*4+1];
1402
1403 parv++;
1404 parc--;
1405
1406 found_tkline_time = valid_tkline(*parv, TK_MINUTES);
1407
1408 if (found_tkline_time)
1409 {
1410 parv++;
1411 parc--;
1412
1413 if (tkline_time)
1414 *tkline_time = found_tkline_time;
1415 else
1416 {
1417 sendto_one_notice(source_p, &me, ":temp_line not supported by %s", cmd);
1418 return 0;
1419 }
1420 }
1421
1422 if (parc == 0)
1423 {
1424 sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, cmd);
1425 return 0;
1426 }
1427
1428 if (h_p == NULL)
1429 *up_p = *parv;
1430 else
1431 {
1432 if (find_user_host(source_p, *parv, user, host) == 0)
1433 return 0;
1434
1435 *up_p = user;
1436 *h_p = host;
1437 }
1438
1439 parc--;
1440 parv++;
1441
1442 if (parc)
1443 {
1444 if (irccmp(*parv, "ON") == 0)
1445 {
1446 parc--;
1447 parv++;
1448
1449 if (!HasOFlag(source_p, OPER_FLAG_REMOTEBAN))
1450 {
1451 sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "remoteban");
1452 return 0;
1453 }
1454
1455 if (parc == 0 || EmptyString(*parv))
1456 {
1457 sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, cmd);
1458 return 0;
1459 }
1460
1461 *target_server = *parv;
1462 parc--;
1463 parv++;
1464 }
1465 else
1466 {
1467 /* Make sure target_server *is* NULL if no ON server found
1468 * caller probably NULL'd it first, but no harm to do it again -db
1469 */
1470 if (target_server)
1471 *target_server = NULL;
1472 }
1473 }
1474
1475 if (reason)
1476 {
1477 if (parc && !EmptyString(*parv))
1478 *reason = *parv;
1479 else
1480 *reason = default_reason;
1481 }
1482
1483 return 1;
1484 }
1485
1486 /* match_conf_password()
1487 *
1488 * inputs - pointer to given password
1489 * - pointer to Conf
1490 * output - 1 or 0 if match
1491 * side effects - none
1492 */
1493 int
1494 match_conf_password(const char *password, const struct MaskItem *conf)
1495 {
1496 const char *encr = NULL;
1497
1498 if (EmptyString(password) || EmptyString(conf->passwd))
1499 return 0;
1500
1501 if (conf->flags & CONF_FLAGS_ENCRYPTED)
1502 encr = crypt(password, conf->passwd);
1503 else
1504 encr = password;
1505
1506 return encr && !strcmp(encr, conf->passwd);
1507 }
1508
1509 /*
1510 * split_nuh
1511 *
1512 * inputs - pointer to original mask (modified in place)
1513 * - pointer to pointer where nick should go
1514 * - pointer to pointer where user should go
1515 * - pointer to pointer where host should go
1516 * output - NONE
1517 * side effects - mask is modified in place
1518 * If nick pointer is NULL, ignore writing to it
1519 * this allows us to use this function elsewhere.
1520 *
1521 * mask nick user host
1522 * ---------------------- ------- ------- ------
1523 * Dianora!db@db.net Dianora db db.net
1524 * Dianora Dianora * *
1525 * db.net * * db.net
1526 * OR if nick pointer is NULL
1527 * Dianora - * Dianora
1528 * Dianora! Dianora * *
1529 * Dianora!@ Dianora * *
1530 * Dianora!db Dianora db *
1531 * Dianora!@db.net Dianora * db.net
1532 * db@db.net * db db.net
1533 * !@ * * *
1534 * @ * * *
1535 * ! * * *
1536 */
1537 void
1538 split_nuh(struct split_nuh_item *const iptr)
1539 {
1540 char *p = NULL, *q = NULL;
1541
1542 if (iptr->nickptr)
1543 strlcpy(iptr->nickptr, "*", iptr->nicksize);
1544
1545 if (iptr->userptr)
1546 strlcpy(iptr->userptr, "*", iptr->usersize);
1547
1548 if (iptr->hostptr)
1549 strlcpy(iptr->hostptr, "*", iptr->hostsize);
1550
1551 if ((p = strchr(iptr->nuhmask, '!')))
1552 {
1553 *p = '\0';
1554
1555 if (iptr->nickptr && *iptr->nuhmask)
1556 strlcpy(iptr->nickptr, iptr->nuhmask, iptr->nicksize);
1557
1558 if ((q = strchr(++p, '@')))
1559 {
1560 *q++ = '\0';
1561
1562 if (*p)
1563 strlcpy(iptr->userptr, p, iptr->usersize);
1564
1565 if (*q)
1566 strlcpy(iptr->hostptr, q, iptr->hostsize);
1567 }
1568 else
1569 {
1570 if (*p)
1571 strlcpy(iptr->userptr, p, iptr->usersize);
1572 }
1573 }
1574 else
1575 {
1576 /* No ! found so lets look for a user@host */
1577 if ((p = strchr(iptr->nuhmask, '@')))
1578 {
1579 /* if found a @ */
1580 *p++ = '\0';
1581
1582 if (*iptr->nuhmask)
1583 strlcpy(iptr->userptr, iptr->nuhmask, iptr->usersize);
1584
1585 if (*p)
1586 strlcpy(iptr->hostptr, p, iptr->hostsize);
1587 }
1588 else
1589 {
1590 /* No @ found */
1591 if (!iptr->nickptr || strpbrk(iptr->nuhmask, ".:"))
1592 strlcpy(iptr->hostptr, iptr->nuhmask, iptr->hostsize);
1593 else
1594 strlcpy(iptr->nickptr, iptr->nuhmask, iptr->nicksize);
1595 }
1596 }
1597 }

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svn:eol-style native
svn:keywords Id

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