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Commit | Line | Data |
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212380e3 | 1 | /* |
b37021a4 | 2 | * charybdis: an advanced ircd. |
212380e3 AC |
3 | * client.c: Controls clients. |
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 | |
b37021a4 | 8 | * Copyright (C) 2007 William Pitcock |
212380e3 AC |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
23 | * USA | |
24 | * | |
f80a1823 | 25 | * $Id: client.c 3514 2007-06-06 16:25:21Z nenolod $ |
212380e3 AC |
26 | */ |
27 | #include "stdinc.h" | |
28 | #include "config.h" | |
29 | ||
212380e3 AC |
30 | #include "client.h" |
31 | #include "class.h" | |
32 | #include "common.h" | |
212380e3 | 33 | #include "hash.h" |
4562c604 | 34 | #include "match.h" |
212380e3 | 35 | #include "ircd.h" |
212380e3 AC |
36 | #include "numeric.h" |
37 | #include "packet.h" | |
38 | #include "s_auth.h" | |
212380e3 AC |
39 | #include "s_conf.h" |
40 | #include "s_newconf.h" | |
4016731b | 41 | #include "logger.h" |
212380e3 AC |
42 | #include "s_serv.h" |
43 | #include "s_stats.h" | |
44 | #include "send.h" | |
45 | #include "whowas.h" | |
46 | #include "s_user.h" | |
212380e3 | 47 | #include "hash.h" |
212380e3 | 48 | #include "hostmask.h" |
212380e3 AC |
49 | #include "listener.h" |
50 | #include "hook.h" | |
51 | #include "msg.h" | |
52 | #include "monitor.h" | |
53 | #include "blacklist.h" | |
54015b5f | 54 | #include "reject.h" |
994544c2 | 55 | #include "scache.h" |
b37021a4 | 56 | #include "irc_dictionary.h" |
c6d72037 | 57 | #include "sslproc.h" |
212380e3 AC |
58 | |
59 | #define DEBUG_EXITED_CLIENTS | |
60 | ||
330fc5c1 AC |
61 | static void check_pings_list(rb_dlink_list * list); |
62 | static void check_unknowns_list(rb_dlink_list * list); | |
212380e3 AC |
63 | static void free_exited_clients(void *unused); |
64 | static void exit_aborted_clients(void *unused); | |
65 | ||
66 | static int exit_remote_client(struct Client *, struct Client *, struct Client *,const char *); | |
67 | static int exit_remote_server(struct Client *, struct Client *, struct Client *,const char *); | |
68 | static int exit_local_client(struct Client *, struct Client *, struct Client *,const char *); | |
69 | static int exit_unknown_client(struct Client *, struct Client *, struct Client *,const char *); | |
70 | static int exit_local_server(struct Client *, struct Client *, struct Client *,const char *); | |
71 | static int qs_server(struct Client *, struct Client *, struct Client *, const char *comment); | |
72 | ||
73 | static EVH check_pings; | |
74 | ||
5433b83e VY |
75 | static rb_bh *client_heap = NULL; |
76 | static rb_bh *lclient_heap = NULL; | |
b09cbaa3 | 77 | static rb_bh *pclient_heap = NULL; |
5433b83e | 78 | static rb_bh *user_heap = NULL; |
adc6cc42 | 79 | static rb_bh *away_heap = NULL; |
5433b83e | 80 | static char current_uid[IDLEN]; |
212380e3 | 81 | |
43de0f45 AC |
82 | struct Dictionary *nd_dict = NULL; |
83 | ||
212380e3 AC |
84 | enum |
85 | { | |
86 | D_LINED, | |
aae358c0 | 87 | K_LINED |
212380e3 AC |
88 | }; |
89 | ||
330fc5c1 | 90 | rb_dlink_list dead_list; |
212380e3 | 91 | #ifdef DEBUG_EXITED_CLIENTS |
330fc5c1 | 92 | static rb_dlink_list dead_remote_list; |
212380e3 AC |
93 | #endif |
94 | ||
95 | struct abort_client | |
96 | { | |
330fc5c1 | 97 | rb_dlink_node node; |
212380e3 AC |
98 | struct Client *client; |
99 | char notice[REASONLEN]; | |
100 | }; | |
101 | ||
330fc5c1 | 102 | static rb_dlink_list abort_list; |
212380e3 AC |
103 | |
104 | ||
105 | /* | |
106 | * init_client | |
107 | * | |
108 | * inputs - NONE | |
109 | * output - NONE | |
110 | * side effects - initialize client free memory | |
111 | */ | |
112 | void | |
113 | init_client(void) | |
114 | { | |
115 | /* | |
116 | * start off the check ping event .. -- adrian | |
117 | * Every 30 seconds is plenty -- db | |
118 | */ | |
1087485c | 119 | client_heap = rb_bh_create(sizeof(struct Client), CLIENT_HEAP_SIZE, "client_heap"); |
adc6cc42 VY |
120 | lclient_heap = rb_bh_create(sizeof(struct LocalUser), LCLIENT_HEAP_SIZE, "lclient_heap"); |
121 | pclient_heap = rb_bh_create(sizeof(struct PreClient), PCLIENT_HEAP_SIZE, "pclient_heap"); | |
b09cbaa3 | 122 | user_heap = rb_bh_create(sizeof(struct User), USER_HEAP_SIZE, "user_heap"); |
adc6cc42 VY |
123 | away_heap = rb_bh_create(AWAYLEN, AWAY_HEAP_SIZE, "away_heap"); |
124 | ||
3b2ebd04 JT |
125 | rb_event_addish("check_pings", check_pings, NULL, 30); |
126 | rb_event_addish("free_exited_clients", &free_exited_clients, NULL, 4); | |
127 | rb_event_addish("exit_aborted_clients", exit_aborted_clients, NULL, 1); | |
5a606a8f | 128 | rb_event_add("flood_recalc", flood_recalc, NULL, 1); |
43de0f45 AC |
129 | |
130 | nd_dict = irc_dictionary_create(irccmp); | |
212380e3 AC |
131 | } |
132 | ||
133 | ||
134 | /* | |
135 | * make_client - create a new Client struct and set it to initial state. | |
136 | * | |
137 | * from == NULL, create local client (a client connected | |
138 | * to a socket). | |
139 | * | |
140 | * from, create remote client (behind a socket | |
141 | * associated with the client defined by | |
142 | * 'from'). ('from' is a local client!!). | |
143 | */ | |
144 | struct Client * | |
145 | make_client(struct Client *from) | |
146 | { | |
147 | struct Client *client_p = NULL; | |
148 | struct LocalUser *localClient; | |
149 | ||
398b6a73 | 150 | client_p = rb_bh_alloc(client_heap); |
212380e3 AC |
151 | |
152 | if(from == NULL) | |
153 | { | |
154 | client_p->from = client_p; /* 'from' of local client is self! */ | |
155 | ||
b09cbaa3 | 156 | localClient = rb_bh_alloc(lclient_heap); |
212380e3 AC |
157 | SetMyConnect(client_p); |
158 | client_p->localClient = localClient; | |
159 | ||
e3354945 | 160 | client_p->localClient->lasttime = client_p->localClient->firsttime = rb_current_time(); |
212380e3 | 161 | |
c5c2f506 | 162 | client_p->localClient->F = NULL; |
212380e3 | 163 | |
b09cbaa3 | 164 | client_p->preClient = rb_bh_alloc(pclient_heap);; |
212380e3 AC |
165 | |
166 | /* as good a place as any... */ | |
330fc5c1 | 167 | rb_dlinkAdd(client_p, &client_p->localClient->tnode, &unknown_list); |
212380e3 AC |
168 | } |
169 | else | |
170 | { /* from is not NULL */ | |
171 | client_p->localClient = NULL; | |
172 | client_p->preClient = NULL; | |
173 | client_p->from = from; /* 'from' of local client is self! */ | |
174 | } | |
175 | ||
176 | SetUnknown(client_p); | |
177 | strcpy(client_p->username, "unknown"); | |
178 | ||
179 | return client_p; | |
180 | } | |
181 | ||
182 | void | |
183 | free_pre_client(struct Client *client_p) | |
184 | { | |
185 | struct Blacklist *blptr; | |
186 | ||
187 | s_assert(NULL != client_p); | |
188 | ||
189 | if(client_p->preClient == NULL) | |
190 | return; | |
191 | ||
192 | blptr = client_p->preClient->dnsbl_listed; | |
193 | if (blptr != NULL) | |
194 | unref_blacklist(blptr); | |
195 | abort_blacklist_queries(client_p); | |
398b6a73 | 196 | rb_bh_free(pclient_heap, client_p->preClient); |
212380e3 AC |
197 | client_p->preClient = NULL; |
198 | } | |
199 | ||
200 | static void | |
201 | free_local_client(struct Client *client_p) | |
202 | { | |
203 | s_assert(NULL != client_p); | |
204 | s_assert(&me != client_p); | |
205 | ||
206 | if(client_p->localClient == NULL) | |
207 | return; | |
208 | ||
209 | /* | |
210 | * clean up extra sockets from P-lines which have been discarded. | |
211 | */ | |
212 | if(client_p->localClient->listener) | |
213 | { | |
214 | s_assert(0 < client_p->localClient->listener->ref_count); | |
215 | if(0 == --client_p->localClient->listener->ref_count | |
216 | && !client_p->localClient->listener->active) | |
217 | free_listener(client_p->localClient->listener); | |
218 | client_p->localClient->listener = 0; | |
219 | } | |
220 | ||
c6d72037 VY |
221 | if(client_p->localClient->F != NULL) |
222 | { | |
223 | del_from_cli_fd_hash(client_p); | |
3b2ebd04 | 224 | rb_close(client_p->localClient->F); |
c6d72037 | 225 | } |
212380e3 AC |
226 | |
227 | if(client_p->localClient->passwd) | |
228 | { | |
229 | memset(client_p->localClient->passwd, 0, | |
230 | strlen(client_p->localClient->passwd)); | |
637c4932 | 231 | rb_free(client_p->localClient->passwd); |
212380e3 AC |
232 | } |
233 | ||
637c4932 VY |
234 | rb_free(client_p->localClient->challenge); |
235 | rb_free(client_p->localClient->fullcaps); | |
236 | rb_free(client_p->localClient->opername); | |
237 | rb_free(client_p->localClient->mangledhost); | |
0e52d0d4 JT |
238 | if (client_p->localClient->privset) |
239 | privilegeset_unref(client_p->localClient->privset); | |
212380e3 | 240 | |
a4165b42 AS |
241 | if(IsSSL(client_p)) |
242 | ssld_decrement_clicount(client_p->localClient->ssl_ctl); | |
243 | ||
244 | if(IsCapable(client_p, CAP_ZIP)) | |
245 | ssld_decrement_clicount(client_p->localClient->z_ctl); | |
c6d72037 | 246 | |
398b6a73 | 247 | rb_bh_free(lclient_heap, client_p->localClient); |
212380e3 AC |
248 | client_p->localClient = NULL; |
249 | } | |
250 | ||
251 | void | |
252 | free_client(struct Client *client_p) | |
253 | { | |
254 | s_assert(NULL != client_p); | |
255 | s_assert(&me != client_p); | |
256 | free_local_client(client_p); | |
257 | free_pre_client(client_p); | |
398b6a73 | 258 | rb_bh_free(client_heap, client_p); |
212380e3 AC |
259 | } |
260 | ||
261 | /* | |
262 | * check_pings - go through the local client list and check activity | |
263 | * kill off stuff that should die | |
264 | * | |
265 | * inputs - NOT USED (from event) | |
266 | * output - next time_t when check_pings() should be called again | |
267 | * side effects - | |
268 | * | |
269 | * | |
270 | * A PING can be sent to clients as necessary. | |
271 | * | |
272 | * Client/Server ping outs are handled. | |
273 | */ | |
274 | ||
275 | /* | |
276 | * Addon from adrian. We used to call this after nextping seconds, | |
277 | * however I've changed it to run once a second. This is only for | |
278 | * PING timeouts, not K/etc-line checks (thanks dianora!). Having it | |
279 | * run once a second makes life a lot easier - when a new client connects | |
280 | * and they need a ping in 4 seconds, if nextping was set to 20 seconds | |
281 | * we end up waiting 20 seconds. This is stupid. :-) | |
282 | * I will optimise (hah!) check_pings() once I've finished working on | |
283 | * tidying up other network IO evilnesses. | |
284 | * -- adrian | |
285 | */ | |
286 | ||
287 | static void | |
288 | check_pings(void *notused) | |
289 | { | |
290 | check_pings_list(&lclient_list); | |
291 | check_pings_list(&serv_list); | |
292 | check_unknowns_list(&unknown_list); | |
293 | } | |
294 | ||
295 | /* | |
296 | * Check_pings_list() | |
297 | * | |
298 | * inputs - pointer to list to check | |
299 | * output - NONE | |
300 | * side effects - | |
301 | */ | |
302 | static void | |
330fc5c1 | 303 | check_pings_list(rb_dlink_list * list) |
212380e3 AC |
304 | { |
305 | char scratch[32]; /* way too generous but... */ | |
306 | struct Client *client_p; /* current local client_p being examined */ | |
307 | int ping = 0; /* ping time value from client */ | |
637c4932 | 308 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 309 | |
637c4932 | 310 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 AC |
311 | { |
312 | client_p = ptr->data; | |
313 | ||
212380e3 AC |
314 | if(!MyConnect(client_p) || IsDead(client_p)) |
315 | continue; | |
316 | ||
e2a98043 | 317 | ping = get_client_ping(client_p); |
212380e3 | 318 | |
e3354945 | 319 | if(ping < (rb_current_time() - client_p->localClient->lasttime)) |
212380e3 AC |
320 | { |
321 | /* | |
322 | * If the client/server hasnt talked to us in 2*ping seconds | |
323 | * and it has a ping time, then close its connection. | |
324 | */ | |
e3354945 | 325 | if(((rb_current_time() - client_p->localClient->lasttime) >= (2 * ping) |
212380e3 AC |
326 | && (client_p->flags & FLAGS_PINGSENT))) |
327 | { | |
e2a98043 | 328 | if(IsServer(client_p)) |
212380e3 | 329 | { |
e2a98043 | 330 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
212380e3 | 331 | "No response from %s, closing link", |
b3ebc7ab | 332 | client_p->name); |
212380e3 AC |
333 | ilog(L_SERVER, |
334 | "No response from %s, closing link", | |
335 | log_client_name(client_p, HIDE_IP)); | |
336 | } | |
b2f0da88 | 337 | (void) rb_snprintf(scratch, sizeof(scratch), |
212380e3 | 338 | "Ping timeout: %d seconds", |
e3354945 | 339 | (int) (rb_current_time() - client_p->localClient->lasttime)); |
212380e3 AC |
340 | |
341 | exit_client(client_p, client_p, &me, scratch); | |
342 | continue; | |
343 | } | |
344 | else if((client_p->flags & FLAGS_PINGSENT) == 0) | |
345 | { | |
346 | /* | |
347 | * if we havent PINGed the connection and we havent | |
348 | * heard from it in a while, PING it to make sure | |
349 | * it is still alive. | |
350 | */ | |
351 | client_p->flags |= FLAGS_PINGSENT; | |
352 | /* not nice but does the job */ | |
e3354945 | 353 | client_p->localClient->lasttime = rb_current_time() - ping; |
212380e3 AC |
354 | sendto_one(client_p, "PING :%s", me.name); |
355 | } | |
356 | } | |
357 | /* ping_timeout: */ | |
358 | ||
359 | } | |
360 | } | |
361 | ||
362 | /* | |
363 | * check_unknowns_list | |
364 | * | |
365 | * inputs - pointer to list of unknown clients | |
366 | * output - NONE | |
367 | * side effects - unknown clients get marked for termination after n seconds | |
368 | */ | |
369 | static void | |
330fc5c1 | 370 | check_unknowns_list(rb_dlink_list * list) |
212380e3 | 371 | { |
637c4932 | 372 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 373 | struct Client *client_p; |
35cf4c79 | 374 | int timeout; |
212380e3 | 375 | |
637c4932 | 376 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 AC |
377 | { |
378 | client_p = ptr->data; | |
379 | ||
380 | if(IsDead(client_p) || IsClosing(client_p)) | |
381 | continue; | |
382 | ||
6bb4fb83 JT |
383 | /* still has DNSbls to validate against */ |
384 | if(client_p->preClient != NULL && | |
385 | rb_dlink_list_length(&client_p->preClient->dnsbl_queries) > 0) | |
386 | continue; | |
387 | ||
212380e3 AC |
388 | /* |
389 | * Check UNKNOWN connections - if they have been in this state | |
390 | * for > 30s, close them. | |
391 | */ | |
392 | ||
35cf4c79 | 393 | timeout = IsAnyServer(client_p) ? ConfigFileEntry.connect_timeout : 30; |
e3354945 | 394 | if((rb_current_time() - client_p->localClient->firsttime) > timeout) |
35cf4c79 JT |
395 | { |
396 | if(IsAnyServer(client_p)) | |
397 | { | |
398 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) ? L_NETWIDE : L_ALL, | |
399 | "No response from %s, closing link", | |
b3ebc7ab | 400 | client_p->name); |
35cf4c79 JT |
401 | ilog(L_SERVER, |
402 | "No response from %s, closing link", | |
403 | log_client_name(client_p, HIDE_IP)); | |
404 | } | |
212380e3 | 405 | exit_client(client_p, client_p, &me, "Connection timed out"); |
35cf4c79 | 406 | } |
212380e3 AC |
407 | } |
408 | } | |
409 | ||
410 | static void | |
411 | notify_banned_client(struct Client *client_p, struct ConfItem *aconf, int ban) | |
412 | { | |
413 | static const char conn_closed[] = "Connection closed"; | |
414 | static const char d_lined[] = "D-lined"; | |
415 | static const char k_lined[] = "K-lined"; | |
212380e3 AC |
416 | const char *reason = NULL; |
417 | const char *exit_reason = conn_closed; | |
418 | ||
419 | if(ConfigFileEntry.kline_with_reason && !EmptyString(aconf->passwd)) | |
420 | { | |
421 | reason = aconf->passwd; | |
422 | exit_reason = aconf->passwd; | |
423 | } | |
424 | else | |
425 | { | |
405ae5ce | 426 | reason = aconf->status == D_LINED ? d_lined : k_lined; |
212380e3 AC |
427 | } |
428 | ||
429 | if(ban == D_LINED && !IsPerson(client_p)) | |
430 | sendto_one(client_p, "NOTICE DLINE :*** You have been D-lined"); | |
431 | else | |
432 | sendto_one(client_p, form_str(ERR_YOUREBANNEDCREEP), | |
433 | me.name, client_p->name, reason); | |
434 | ||
435 | exit_client(client_p, client_p, &me, | |
436 | EmptyString(ConfigFileEntry.kline_reason) ? exit_reason : | |
437 | ConfigFileEntry.kline_reason); | |
438 | } | |
439 | ||
440 | /* | |
441 | * check_banned_lines | |
442 | * inputs - NONE | |
443 | * output - NONE | |
170703fe | 444 | * side effects - Check all connections for a pending k/dline against the |
212380e3 AC |
445 | * client, exit the client if found. |
446 | */ | |
447 | void | |
448 | check_banned_lines(void) | |
449 | { | |
450 | struct Client *client_p; /* current local client_p being examined */ | |
451 | struct ConfItem *aconf = NULL; | |
637c4932 | 452 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 453 | |
637c4932 | 454 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 AC |
455 | { |
456 | client_p = ptr->data; | |
457 | ||
458 | if(IsMe(client_p)) | |
459 | continue; | |
460 | ||
461 | /* if there is a returned struct ConfItem then kill it */ | |
54ac8b60 | 462 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip, client_p->localClient->ip.ss_family))) |
212380e3 AC |
463 | { |
464 | if(aconf->status & CONF_EXEMPTDLINE) | |
465 | continue; | |
466 | ||
467 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
468 | "DLINE active for %s", | |
469 | get_client_name(client_p, HIDE_IP)); | |
470 | ||
471 | notify_banned_client(client_p, aconf, D_LINED); | |
472 | continue; /* and go examine next fd/client_p */ | |
473 | } | |
474 | ||
475 | if(!IsPerson(client_p)) | |
476 | continue; | |
477 | ||
478 | if((aconf = find_kline(client_p)) != NULL) | |
479 | { | |
480 | if(IsExemptKline(client_p)) | |
481 | { | |
482 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
483 | "KLINE over-ruled for %s, client is kline_exempt [%s@%s]", | |
484 | get_client_name(client_p, HIDE_IP), | |
485 | aconf->user, aconf->host); | |
486 | continue; | |
487 | } | |
488 | ||
489 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
490 | "KLINE active for %s", | |
491 | get_client_name(client_p, HIDE_IP)); | |
492 | notify_banned_client(client_p, aconf, K_LINED); | |
493 | continue; | |
494 | } | |
212380e3 AC |
495 | else if((aconf = find_xline(client_p->info, 1)) != NULL) |
496 | { | |
497 | if(IsExemptKline(client_p)) | |
498 | { | |
499 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
500 | "XLINE over-ruled for %s, client is kline_exempt [%s]", | |
501 | get_client_name(client_p, HIDE_IP), | |
502 | aconf->name); | |
503 | continue; | |
504 | } | |
505 | ||
506 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "XLINE active for %s", | |
507 | get_client_name(client_p, HIDE_IP)); | |
508 | ||
509 | (void) exit_client(client_p, client_p, &me, "Bad user info"); | |
510 | continue; | |
511 | } | |
512 | } | |
513 | ||
514 | /* also check the unknowns list for new dlines */ | |
637c4932 | 515 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head) |
212380e3 AC |
516 | { |
517 | client_p = ptr->data; | |
518 | ||
54ac8b60 | 519 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family))) |
212380e3 AC |
520 | { |
521 | if(aconf->status & CONF_EXEMPTDLINE) | |
522 | continue; | |
523 | ||
524 | notify_banned_client(client_p, aconf, D_LINED); | |
525 | } | |
526 | } | |
527 | ||
528 | } | |
529 | ||
530 | /* check_klines_event() | |
531 | * | |
532 | * inputs - | |
533 | * outputs - | |
534 | * side effects - check_klines() is called, kline_queued unset | |
535 | */ | |
536 | void | |
537 | check_klines_event(void *unused) | |
538 | { | |
539 | kline_queued = 0; | |
540 | check_klines(); | |
541 | } | |
542 | ||
543 | /* check_klines | |
544 | * | |
545 | * inputs - | |
546 | * outputs - | |
547 | * side effects - all clients will be checked for klines | |
548 | */ | |
549 | void | |
550 | check_klines(void) | |
551 | { | |
552 | struct Client *client_p; | |
553 | struct ConfItem *aconf; | |
330fc5c1 | 554 | rb_dlink_node *ptr; |
637c4932 | 555 | rb_dlink_node *next_ptr; |
212380e3 | 556 | |
637c4932 | 557 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 AC |
558 | { |
559 | client_p = ptr->data; | |
560 | ||
561 | if(IsMe(client_p) || !IsPerson(client_p)) | |
562 | continue; | |
563 | ||
564 | if((aconf = find_kline(client_p)) != NULL) | |
565 | { | |
566 | if(IsExemptKline(client_p)) | |
567 | { | |
568 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
569 | "KLINE over-ruled for %s, client is kline_exempt", | |
570 | get_client_name(client_p, HIDE_IP)); | |
571 | continue; | |
572 | } | |
573 | ||
574 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
575 | "KLINE active for %s", | |
576 | get_client_name(client_p, HIDE_IP)); | |
577 | ||
578 | notify_banned_client(client_p, aconf, K_LINED); | |
579 | continue; | |
580 | } | |
581 | } | |
582 | } | |
583 | ||
212380e3 AC |
584 | /* check_dlines() |
585 | * | |
586 | * inputs - | |
587 | * outputs - | |
588 | * side effects - all clients will be checked for dlines | |
589 | */ | |
590 | void | |
591 | check_dlines(void) | |
592 | { | |
593 | struct Client *client_p; | |
594 | struct ConfItem *aconf; | |
330fc5c1 | 595 | rb_dlink_node *ptr; |
637c4932 | 596 | rb_dlink_node *next_ptr; |
212380e3 | 597 | |
637c4932 | 598 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 AC |
599 | { |
600 | client_p = ptr->data; | |
601 | ||
602 | if(IsMe(client_p)) | |
603 | continue; | |
604 | ||
54ac8b60 | 605 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family)) != NULL) |
212380e3 AC |
606 | { |
607 | if(aconf->status & CONF_EXEMPTDLINE) | |
608 | continue; | |
609 | ||
610 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
611 | "DLINE active for %s", | |
612 | get_client_name(client_p, HIDE_IP)); | |
613 | ||
614 | notify_banned_client(client_p, aconf, D_LINED); | |
615 | continue; | |
616 | } | |
617 | } | |
618 | ||
619 | /* dlines need to be checked against unknowns too */ | |
637c4932 | 620 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head) |
212380e3 AC |
621 | { |
622 | client_p = ptr->data; | |
623 | ||
54ac8b60 | 624 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family)) != NULL) |
212380e3 AC |
625 | { |
626 | if(aconf->status & CONF_EXEMPTDLINE) | |
627 | continue; | |
628 | ||
629 | notify_banned_client(client_p, aconf, D_LINED); | |
630 | } | |
631 | } | |
632 | } | |
633 | ||
634 | /* check_xlines | |
635 | * | |
636 | * inputs - | |
637 | * outputs - | |
638 | * side effects - all clients will be checked for xlines | |
639 | */ | |
640 | void | |
641 | check_xlines(void) | |
642 | { | |
643 | struct Client *client_p; | |
644 | struct ConfItem *aconf; | |
330fc5c1 | 645 | rb_dlink_node *ptr; |
637c4932 | 646 | rb_dlink_node *next_ptr; |
212380e3 | 647 | |
637c4932 | 648 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 AC |
649 | { |
650 | client_p = ptr->data; | |
651 | ||
652 | if(IsMe(client_p) || !IsPerson(client_p)) | |
653 | continue; | |
654 | ||
655 | if((aconf = find_xline(client_p->info, 1)) != NULL) | |
656 | { | |
657 | if(IsExemptKline(client_p)) | |
658 | { | |
659 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
660 | "XLINE over-ruled for %s, client is kline_exempt", | |
661 | get_client_name(client_p, HIDE_IP)); | |
662 | continue; | |
663 | } | |
664 | ||
665 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "XLINE active for %s", | |
666 | get_client_name(client_p, HIDE_IP)); | |
667 | ||
668 | (void) exit_client(client_p, client_p, &me, "Bad user info"); | |
669 | continue; | |
670 | } | |
671 | } | |
672 | } | |
673 | ||
674 | /* | |
675 | * update_client_exit_stats | |
676 | * | |
677 | * input - pointer to client | |
678 | * output - NONE | |
679 | * side effects - | |
680 | */ | |
681 | static void | |
682 | update_client_exit_stats(struct Client *client_p) | |
683 | { | |
684 | if(IsServer(client_p)) | |
685 | { | |
686 | sendto_realops_snomask(SNO_EXTERNAL, L_ALL, | |
687 | "Server %s split from %s", | |
688 | client_p->name, client_p->servptr->name); | |
689 | if(HasSentEob(client_p)) | |
690 | eob_count--; | |
691 | } | |
692 | else if(IsClient(client_p)) | |
693 | { | |
694 | --Count.total; | |
695 | if(IsOper(client_p)) | |
696 | --Count.oper; | |
697 | if(IsInvisible(client_p)) | |
698 | --Count.invisi; | |
699 | } | |
700 | ||
701 | if(splitchecking && !splitmode) | |
702 | check_splitmode(NULL); | |
703 | } | |
704 | ||
705 | /* | |
706 | * release_client_state | |
707 | * | |
708 | * input - pointer to client to release | |
709 | * output - NONE | |
710 | * side effects - | |
711 | */ | |
712 | static void | |
713 | release_client_state(struct Client *client_p) | |
714 | { | |
715 | if(client_p->user != NULL) | |
716 | { | |
717 | free_user(client_p->user, client_p); /* try this here */ | |
718 | } | |
719 | if(client_p->serv) | |
720 | { | |
721 | if(client_p->serv->user != NULL) | |
722 | free_user(client_p->serv->user, client_p); | |
723 | if(client_p->serv->fullcaps) | |
637c4932 VY |
724 | rb_free(client_p->serv->fullcaps); |
725 | rb_free(client_p->serv); | |
212380e3 AC |
726 | } |
727 | } | |
728 | ||
729 | /* | |
730 | * remove_client_from_list | |
731 | * inputs - point to client to remove | |
732 | * output - NONE | |
733 | * side effects - taken the code from ExitOneClient() for this | |
734 | * and placed it here. - avalon | |
735 | */ | |
736 | static void | |
737 | remove_client_from_list(struct Client *client_p) | |
738 | { | |
739 | s_assert(NULL != client_p); | |
740 | ||
741 | if(client_p == NULL) | |
742 | return; | |
743 | ||
744 | /* A client made with make_client() | |
745 | * is on the unknown_list until removed. | |
746 | * If it =does= happen to exit before its removed from that list | |
747 | * and its =not= on the global_client_list, it will core here. | |
748 | * short circuit that case now -db | |
749 | */ | |
750 | if(client_p->node.prev == NULL && client_p->node.next == NULL) | |
751 | return; | |
752 | ||
330fc5c1 | 753 | rb_dlinkDelete(&client_p->node, &global_client_list); |
212380e3 AC |
754 | |
755 | update_client_exit_stats(client_p); | |
756 | } | |
757 | ||
758 | ||
759 | /* | |
760 | * find_person - find person by (nick)name. | |
761 | * inputs - pointer to name | |
762 | * output - return client pointer | |
763 | * side effects - | |
764 | */ | |
765 | struct Client * | |
766 | find_person(const char *name) | |
767 | { | |
768 | struct Client *c2ptr; | |
769 | ||
770 | c2ptr = find_client(name); | |
771 | ||
772 | if(c2ptr && IsPerson(c2ptr)) | |
773 | return (c2ptr); | |
774 | return (NULL); | |
775 | } | |
776 | ||
777 | struct Client * | |
778 | find_named_person(const char *name) | |
779 | { | |
780 | struct Client *c2ptr; | |
781 | ||
782 | c2ptr = find_named_client(name); | |
783 | ||
784 | if(c2ptr && IsPerson(c2ptr)) | |
785 | return (c2ptr); | |
786 | return (NULL); | |
787 | } | |
788 | ||
789 | ||
790 | /* | |
791 | * find_chasing - find the client structure for a nick name (user) | |
792 | * using history mechanism if necessary. If the client is not found, | |
793 | * an error message (NO SUCH NICK) is generated. If the client was found | |
794 | * through the history, chasing will be 1 and otherwise 0. | |
795 | */ | |
796 | struct Client * | |
797 | find_chasing(struct Client *source_p, const char *user, int *chasing) | |
798 | { | |
799 | struct Client *who; | |
800 | ||
801 | if(MyClient(source_p)) | |
802 | who = find_named_person(user); | |
803 | else | |
804 | who = find_person(user); | |
805 | ||
806 | if(chasing) | |
807 | *chasing = 0; | |
808 | ||
809 | if(who || IsDigit(*user)) | |
810 | return who; | |
811 | ||
812 | if(!(who = get_history(user, (long) KILLCHASETIMELIMIT))) | |
813 | { | |
814 | sendto_one_numeric(source_p, ERR_NOSUCHNICK, | |
815 | form_str(ERR_NOSUCHNICK), user); | |
816 | return (NULL); | |
817 | } | |
818 | if(chasing) | |
819 | *chasing = 1; | |
820 | return who; | |
821 | } | |
822 | ||
823 | /* | |
824 | * get_client_name - Return the name of the client | |
825 | * for various tracking and | |
826 | * admin purposes. The main purpose of this function is to | |
827 | * return the "socket host" name of the client, if that | |
828 | * differs from the advertised name (other than case). | |
829 | * But, this can be used to any client structure. | |
830 | * | |
831 | * NOTE 1: | |
832 | * Watch out the allocation of "nbuf", if either source_p->name | |
833 | * or source_p->sockhost gets changed into pointers instead of | |
834 | * directly allocated within the structure... | |
835 | * | |
836 | * NOTE 2: | |
837 | * Function return either a pointer to the structure (source_p) or | |
838 | * to internal buffer (nbuf). *NEVER* use the returned pointer | |
839 | * to modify what it points!!! | |
840 | */ | |
841 | ||
842 | const char * | |
843 | get_client_name(struct Client *client, int showip) | |
844 | { | |
845 | static char nbuf[HOSTLEN * 2 + USERLEN + 5]; | |
846 | ||
847 | s_assert(NULL != client); | |
848 | if(client == NULL) | |
849 | return NULL; | |
850 | ||
851 | if(MyConnect(client)) | |
852 | { | |
853 | if(!irccmp(client->name, client->host)) | |
854 | return client->name; | |
855 | ||
856 | if(ConfigFileEntry.hide_spoof_ips && | |
857 | showip == SHOW_IP && IsIPSpoof(client)) | |
858 | showip = MASK_IP; | |
212380e3 AC |
859 | if(IsAnyServer(client)) |
860 | showip = MASK_IP; | |
212380e3 AC |
861 | |
862 | /* And finally, let's get the host information, ip or name */ | |
863 | switch (showip) | |
864 | { | |
865 | case SHOW_IP: | |
b2f0da88 | 866 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
212380e3 AC |
867 | client->name, client->username, |
868 | client->sockhost); | |
869 | break; | |
870 | case MASK_IP: | |
b2f0da88 | 871 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
212380e3 AC |
872 | client->name, client->username); |
873 | break; | |
874 | default: | |
b2f0da88 | 875 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
212380e3 AC |
876 | client->name, client->username, client->host); |
877 | } | |
878 | return nbuf; | |
879 | } | |
880 | ||
881 | /* As pointed out by Adel Mezibra | |
882 | * Neph|l|m@EFnet. Was missing a return here. | |
883 | */ | |
884 | return client->name; | |
885 | } | |
212380e3 AC |
886 | |
887 | /* log_client_name() | |
888 | * | |
889 | * This version is the same as get_client_name, but doesnt contain the | |
890 | * code that will hide IPs always. This should be used for logfiles. | |
891 | */ | |
892 | const char * | |
893 | log_client_name(struct Client *target_p, int showip) | |
894 | { | |
895 | static char nbuf[HOSTLEN * 2 + USERLEN + 5]; | |
896 | ||
897 | if(target_p == NULL) | |
898 | return NULL; | |
899 | ||
900 | if(MyConnect(target_p)) | |
901 | { | |
902 | if(irccmp(target_p->name, target_p->host) == 0) | |
903 | return target_p->name; | |
904 | ||
905 | switch (showip) | |
906 | { | |
907 | case SHOW_IP: | |
b2f0da88 | 908 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", target_p->name, |
212380e3 AC |
909 | target_p->username, target_p->sockhost); |
910 | break; | |
911 | ||
912 | case MASK_IP: | |
b2f0da88 | 913 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
212380e3 AC |
914 | target_p->name, target_p->username); |
915 | ||
916 | default: | |
b2f0da88 | 917 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", target_p->name, |
212380e3 AC |
918 | target_p->username, target_p->host); |
919 | } | |
920 | ||
921 | return nbuf; | |
922 | } | |
923 | ||
924 | return target_p->name; | |
925 | } | |
926 | ||
927 | /* is_remote_connect - Returns whether a server was /connect'ed by a remote | |
928 | * oper (send notices netwide) */ | |
929 | int | |
930 | is_remote_connect(struct Client *client_p) | |
931 | { | |
932 | struct Client *oper; | |
933 | ||
934 | if (client_p->serv == NULL) | |
935 | return FALSE; | |
936 | oper = find_named_person(client_p->serv->by); | |
937 | return oper != NULL && IsOper(oper) && !MyConnect(oper); | |
938 | } | |
939 | ||
940 | static void | |
941 | free_exited_clients(void *unused) | |
942 | { | |
330fc5c1 | 943 | rb_dlink_node *ptr, *next; |
212380e3 AC |
944 | struct Client *target_p; |
945 | ||
5cefa1d6 | 946 | RB_DLINK_FOREACH_SAFE(ptr, next, dead_list.head) |
212380e3 AC |
947 | { |
948 | target_p = ptr->data; | |
949 | ||
950 | #ifdef DEBUG_EXITED_CLIENTS | |
951 | { | |
952 | struct abort_client *abt; | |
330fc5c1 | 953 | rb_dlink_node *aptr; |
212380e3 AC |
954 | int found = 0; |
955 | ||
5cefa1d6 | 956 | RB_DLINK_FOREACH(aptr, abort_list.head) |
212380e3 AC |
957 | { |
958 | abt = aptr->data; | |
959 | if(abt->client == target_p) | |
960 | { | |
961 | s_assert(0); | |
962 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
963 | "On abort_list: %s stat: %u flags: %u/%u handler: %c", | |
964 | target_p->name, (unsigned int) target_p->status, | |
965 | target_p->flags, target_p->flags2, target_p->handler); | |
966 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
f80a1823 | 967 | "Please report this to the charybdis developers!"); |
212380e3 AC |
968 | found++; |
969 | } | |
970 | } | |
971 | ||
972 | if(found) | |
973 | { | |
330fc5c1 | 974 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 AC |
975 | continue; |
976 | } | |
977 | } | |
978 | #endif | |
979 | ||
980 | if(ptr->data == NULL) | |
981 | { | |
982 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
983 | "Warning: null client on dead_list!"); | |
330fc5c1 | 984 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 AC |
985 | continue; |
986 | } | |
987 | release_client_state(target_p); | |
988 | free_client(target_p); | |
330fc5c1 | 989 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 AC |
990 | } |
991 | ||
992 | #ifdef DEBUG_EXITED_CLIENTS | |
5cefa1d6 | 993 | RB_DLINK_FOREACH_SAFE(ptr, next, dead_remote_list.head) |
212380e3 AC |
994 | { |
995 | target_p = ptr->data; | |
996 | ||
997 | if(ptr->data == NULL) | |
998 | { | |
999 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1000 | "Warning: null client on dead_list!"); | |
330fc5c1 | 1001 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 AC |
1002 | continue; |
1003 | } | |
1004 | release_client_state(target_p); | |
1005 | free_client(target_p); | |
330fc5c1 | 1006 | rb_dlinkDestroy(ptr, &dead_remote_list); |
212380e3 AC |
1007 | } |
1008 | #endif | |
1009 | ||
1010 | } | |
1011 | ||
1012 | /* | |
1013 | ** Recursively send QUITs and SQUITs for source_p and all its dependent clients | |
1014 | ** and servers to those servers that need them. A server needs the client | |
1015 | ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it | |
1016 | ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once | |
1017 | ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending | |
1018 | ** on that one -orabidoo | |
1019 | */ | |
1020 | static void | |
1021 | recurse_send_quits(struct Client *client_p, struct Client *source_p, | |
1022 | struct Client *to, const char *comment1, | |
1023 | const char *comment) | |
1024 | { | |
1025 | struct Client *target_p; | |
330fc5c1 | 1026 | rb_dlink_node *ptr, *ptr_next; |
212380e3 AC |
1027 | /* If this server can handle quit storm (QS) removal |
1028 | * of dependents, just send the SQUIT | |
1029 | */ | |
1030 | ||
1031 | if(IsCapable(to, CAP_QS)) | |
1032 | { | |
1033 | sendto_one(to, "SQUIT %s :%s", | |
1034 | get_id(source_p, to), comment); | |
1035 | } | |
1036 | else | |
1037 | { | |
5cefa1d6 | 1038 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 AC |
1039 | { |
1040 | target_p = ptr->data; | |
1041 | sendto_one(to, ":%s QUIT :%s", target_p->name, comment1); | |
1042 | } | |
5cefa1d6 | 1043 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->servers.head) |
212380e3 AC |
1044 | { |
1045 | target_p = ptr->data; | |
1046 | recurse_send_quits(client_p, target_p, to, comment1, comment); | |
1047 | } | |
1048 | sendto_one(to, "SQUIT %s :%s", source_p->name, comment); | |
1049 | } | |
1050 | } | |
1051 | ||
1052 | /* | |
1053 | ** Remove all clients that depend on source_p; assumes all (S)QUITs have | |
1054 | ** already been sent. we make sure to exit a server's dependent clients | |
1055 | ** and servers before the server itself; exit_one_client takes care of | |
1056 | ** actually removing things off llists. tweaked from +CSr31 -orabidoo | |
1057 | */ | |
1058 | /* | |
1059 | * added sanity test code.... source_p->serv might be NULL... | |
1060 | */ | |
1061 | static void | |
1062 | recurse_remove_clients(struct Client *source_p, const char *comment) | |
1063 | { | |
1064 | struct Client *target_p; | |
330fc5c1 | 1065 | rb_dlink_node *ptr, *ptr_next; |
212380e3 AC |
1066 | |
1067 | if(IsMe(source_p)) | |
1068 | return; | |
1069 | ||
1070 | if(source_p->serv == NULL) /* oooops. uh this is actually a major bug */ | |
1071 | return; | |
1072 | ||
1073 | /* this is very ugly, but it saves cpu :P */ | |
1074 | if(ConfigFileEntry.nick_delay > 0) | |
1075 | { | |
5cefa1d6 | 1076 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 AC |
1077 | { |
1078 | target_p = ptr->data; | |
1079 | target_p->flags |= FLAGS_KILLED; | |
1080 | add_nd_entry(target_p->name); | |
1081 | ||
1082 | if(!IsDead(target_p) && !IsClosing(target_p)) | |
1083 | exit_remote_client(NULL, target_p, &me, comment); | |
1084 | } | |
1085 | } | |
1086 | else | |
1087 | { | |
5cefa1d6 | 1088 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 AC |
1089 | { |
1090 | target_p = ptr->data; | |
1091 | target_p->flags |= FLAGS_KILLED; | |
1092 | ||
1093 | if(!IsDead(target_p) && !IsClosing(target_p)) | |
1094 | exit_remote_client(NULL, target_p, &me, comment); | |
1095 | } | |
1096 | } | |
1097 | ||
5cefa1d6 | 1098 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->servers.head) |
212380e3 AC |
1099 | { |
1100 | target_p = ptr->data; | |
1101 | recurse_remove_clients(target_p, comment); | |
1102 | qs_server(NULL, target_p, &me, comment); | |
1103 | } | |
1104 | } | |
1105 | ||
1106 | /* | |
1107 | ** Remove *everything* that depends on source_p, from all lists, and sending | |
1108 | ** all necessary QUITs and SQUITs. source_p itself is still on the lists, | |
1109 | ** and its SQUITs have been sent except for the upstream one -orabidoo | |
1110 | */ | |
1111 | static void | |
1112 | remove_dependents(struct Client *client_p, | |
1113 | struct Client *source_p, | |
1114 | struct Client *from, const char *comment, const char *comment1) | |
1115 | { | |
1116 | struct Client *to; | |
330fc5c1 | 1117 | rb_dlink_node *ptr, *next; |
212380e3 | 1118 | |
5cefa1d6 | 1119 | RB_DLINK_FOREACH_SAFE(ptr, next, serv_list.head) |
212380e3 AC |
1120 | { |
1121 | to = ptr->data; | |
1122 | ||
1123 | if(IsMe(to) || to == source_p->from || | |
1124 | (to == client_p && IsCapable(to, CAP_QS))) | |
1125 | continue; | |
1126 | ||
1127 | recurse_send_quits(client_p, source_p, to, comment1, comment); | |
1128 | } | |
1129 | ||
1130 | recurse_remove_clients(source_p, comment1); | |
1131 | } | |
1132 | ||
1133 | void | |
1134 | exit_aborted_clients(void *unused) | |
1135 | { | |
1136 | struct abort_client *abt; | |
330fc5c1 | 1137 | rb_dlink_node *ptr, *next; |
5cefa1d6 | 1138 | RB_DLINK_FOREACH_SAFE(ptr, next, abort_list.head) |
212380e3 AC |
1139 | { |
1140 | abt = ptr->data; | |
1141 | ||
1142 | #ifdef DEBUG_EXITED_CLIENTS | |
1143 | { | |
330fc5c1 | 1144 | if(rb_dlinkFind(abt->client, &dead_list)) |
212380e3 AC |
1145 | { |
1146 | s_assert(0); | |
1147 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1148 | "On dead_list: %s stat: %u flags: %u/%u handler: %c", | |
1149 | abt->client->name, (unsigned int) abt->client->status, | |
1150 | abt->client->flags, abt->client->flags2, abt->client->handler); | |
1151 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
f80a1823 | 1152 | "Please report this to the charybdis developers!"); |
212380e3 AC |
1153 | continue; |
1154 | } | |
1155 | } | |
1156 | #endif | |
1157 | ||
1158 | s_assert(*((unsigned long*)abt->client) != 0xdeadbeef); /* This is lame but its a debug thing */ | |
330fc5c1 | 1159 | rb_dlinkDelete(ptr, &abort_list); |
212380e3 AC |
1160 | |
1161 | if(IsAnyServer(abt->client)) | |
1162 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1163 | "Closing link to %s: %s", | |
b3ebc7ab | 1164 | abt->client->name, abt->notice); |
212380e3 AC |
1165 | |
1166 | /* its no longer on abort list - we *must* remove | |
1167 | * FLAGS_CLOSING otherwise exit_client() will not run --fl | |
1168 | */ | |
1169 | abt->client->flags &= ~FLAGS_CLOSING; | |
1170 | exit_client(abt->client, abt->client, &me, abt->notice); | |
637c4932 | 1171 | rb_free(abt); |
212380e3 AC |
1172 | } |
1173 | } | |
1174 | ||
1175 | ||
1176 | /* | |
1177 | * dead_link - Adds client to a list of clients that need an exit_client() | |
1178 | * | |
1179 | */ | |
1180 | void | |
1181 | dead_link(struct Client *client_p) | |
1182 | { | |
1183 | struct abort_client *abt; | |
1184 | ||
1185 | s_assert(!IsMe(client_p)); | |
1186 | if(IsDead(client_p) || IsClosing(client_p) || IsMe(client_p)) | |
1187 | return; | |
1188 | ||
eddc2ab6 | 1189 | abt = (struct abort_client *) rb_malloc(sizeof(struct abort_client)); |
212380e3 AC |
1190 | |
1191 | if(client_p->flags & FLAGS_SENDQEX) | |
f427c8b0 | 1192 | rb_strlcpy(abt->notice, "Max SendQ exceeded", sizeof(abt->notice)); |
212380e3 | 1193 | else |
b2f0da88 | 1194 | rb_snprintf(abt->notice, sizeof(abt->notice), "Write error: %s", strerror(errno)); |
212380e3 AC |
1195 | |
1196 | abt->client = client_p; | |
1197 | SetIOError(client_p); | |
1198 | SetDead(client_p); | |
1199 | SetClosing(client_p); | |
330fc5c1 | 1200 | rb_dlinkAdd(abt, &abt->node, &abort_list); |
212380e3 AC |
1201 | } |
1202 | ||
1203 | ||
1204 | /* This does the remove of the user from channels..local or remote */ | |
1205 | static inline void | |
1206 | exit_generic_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1207 | const char *comment) | |
1208 | { | |
637c4932 | 1209 | rb_dlink_node *ptr, *next_ptr; |
212380e3 AC |
1210 | |
1211 | if(IsOper(source_p)) | |
330fc5c1 | 1212 | rb_dlinkFindDestroy(source_p, &oper_list); |
212380e3 AC |
1213 | |
1214 | sendto_common_channels_local(source_p, ":%s!%s@%s QUIT :%s", | |
1215 | source_p->name, | |
1216 | source_p->username, source_p->host, comment); | |
1217 | ||
1218 | remove_user_from_channels(source_p); | |
1219 | ||
1220 | /* Should not be in any channels now */ | |
1221 | s_assert(source_p->user->channel.head == NULL); | |
1222 | ||
1223 | /* Clean up invitefield */ | |
637c4932 | 1224 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, source_p->user->invited.head) |
212380e3 AC |
1225 | { |
1226 | del_invite(ptr->data, source_p); | |
1227 | } | |
1228 | ||
1229 | /* Clean up allow lists */ | |
1230 | del_all_accepts(source_p); | |
1231 | ||
1232 | add_history(source_p, 0); | |
1233 | off_history(source_p); | |
1234 | ||
1235 | monitor_signoff(source_p); | |
1236 | ||
1237 | if(has_id(source_p)) | |
1238 | del_from_id_hash(source_p->id, source_p); | |
1239 | ||
1240 | del_from_hostname_hash(source_p->orighost, source_p); | |
1241 | del_from_client_hash(source_p->name, source_p); | |
1242 | remove_client_from_list(source_p); | |
1243 | } | |
1244 | ||
1245 | /* | |
1246 | * Assumes IsPerson(source_p) && !MyConnect(source_p) | |
1247 | */ | |
1248 | ||
1249 | static int | |
1250 | exit_remote_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1251 | const char *comment) | |
1252 | { | |
1253 | exit_generic_client(client_p, source_p, from, comment); | |
1254 | ||
1255 | if(source_p->servptr && source_p->servptr->serv) | |
1256 | { | |
330fc5c1 | 1257 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->users); |
212380e3 AC |
1258 | } |
1259 | ||
1260 | if((source_p->flags & FLAGS_KILLED) == 0) | |
1261 | { | |
1262 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, | |
1263 | ":%s QUIT :%s", use_id(source_p), comment); | |
212380e3 AC |
1264 | } |
1265 | ||
1266 | SetDead(source_p); | |
1267 | #ifdef DEBUG_EXITED_CLIENTS | |
330fc5c1 | 1268 | rb_dlinkAddAlloc(source_p, &dead_remote_list); |
212380e3 | 1269 | #else |
330fc5c1 | 1270 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1271 | #endif |
1272 | return(CLIENT_EXITED); | |
1273 | } | |
1274 | ||
1275 | /* | |
1276 | * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE | |
1277 | */ | |
1278 | ||
1279 | static int | |
1280 | exit_unknown_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1281 | const char *comment) | |
1282 | { | |
1283 | delete_auth_queries(source_p); | |
abe5dd20 JT |
1284 | if (source_p->localClient->dnsquery) |
1285 | { | |
1286 | delete_resolver_queries(source_p->localClient->dnsquery); | |
1287 | rb_free(source_p->localClient->dnsquery); | |
1288 | } | |
330fc5c1 | 1289 | rb_dlinkDelete(&source_p->localClient->tnode, &unknown_list); |
212380e3 AC |
1290 | |
1291 | if(!IsIOError(source_p)) | |
dd12a19c JT |
1292 | sendto_one(source_p, "ERROR :Closing Link: %s (%s)", |
1293 | source_p->user != NULL ? source_p->host : "127.0.0.1", | |
1294 | comment); | |
212380e3 AC |
1295 | |
1296 | close_connection(source_p); | |
1297 | ||
1298 | if(has_id(source_p)) | |
1299 | del_from_id_hash(source_p->id, source_p); | |
1300 | ||
1301 | del_from_hostname_hash(source_p->host, source_p); | |
1302 | del_from_client_hash(source_p->name, source_p); | |
1303 | remove_client_from_list(source_p); | |
212380e3 | 1304 | SetDead(source_p); |
330fc5c1 | 1305 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1306 | |
1307 | /* Note that we don't need to add unknowns to the dead_list */ | |
1308 | return(CLIENT_EXITED); | |
1309 | } | |
1310 | ||
1311 | static int | |
1312 | exit_remote_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1313 | const char *comment) | |
1314 | { | |
1315 | static char comment1[(HOSTLEN*2)+2]; | |
1316 | static char newcomment[BUFSIZE]; | |
1317 | struct Client *target_p; | |
1318 | ||
1319 | if(ConfigServerHide.flatten_links) | |
1320 | strcpy(comment1, "*.net *.split"); | |
1321 | else | |
1322 | { | |
66c8fdd2 | 1323 | strcpy(comment1, source_p->servptr->name); |
212380e3 AC |
1324 | strcat(comment1, " "); |
1325 | strcat(comment1, source_p->name); | |
1326 | } | |
1327 | if (IsPerson(from)) | |
b2f0da88 | 1328 | rb_snprintf(newcomment, sizeof(newcomment), "by %s: %s", |
212380e3 AC |
1329 | from->name, comment); |
1330 | ||
1331 | if(source_p->serv != NULL) | |
1332 | remove_dependents(client_p, source_p, from, IsPerson(from) ? newcomment : comment, comment1); | |
1333 | ||
1334 | if(source_p->servptr && source_p->servptr->serv) | |
330fc5c1 | 1335 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 AC |
1336 | else |
1337 | s_assert(0); | |
1338 | ||
330fc5c1 | 1339 | rb_dlinkFindDestroy(source_p, &global_serv_list); |
212380e3 AC |
1340 | target_p = source_p->from; |
1341 | ||
1342 | if(target_p != NULL && IsServer(target_p) && target_p != client_p && | |
1343 | !IsMe(target_p) && (source_p->flags & FLAGS_KILLED) == 0) | |
1344 | { | |
1345 | sendto_one(target_p, ":%s SQUIT %s :%s", | |
1346 | get_id(from, target_p), get_id(source_p, target_p), | |
1347 | comment); | |
1348 | } | |
1349 | ||
1350 | if(has_id(source_p)) | |
1351 | del_from_id_hash(source_p->id, source_p); | |
1352 | ||
1353 | del_from_client_hash(source_p->name, source_p); | |
1354 | remove_client_from_list(source_p); | |
994544c2 | 1355 | scache_split(source_p->serv->nameinfo); |
212380e3 AC |
1356 | |
1357 | SetDead(source_p); | |
1358 | #ifdef DEBUG_EXITED_CLIENTS | |
330fc5c1 | 1359 | rb_dlinkAddAlloc(source_p, &dead_remote_list); |
212380e3 | 1360 | #else |
330fc5c1 | 1361 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1362 | #endif |
1363 | return 0; | |
1364 | } | |
1365 | ||
1366 | static int | |
1367 | qs_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1368 | const char *comment) | |
1369 | { | |
212380e3 | 1370 | if(source_p->servptr && source_p->servptr->serv) |
330fc5c1 | 1371 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 AC |
1372 | else |
1373 | s_assert(0); | |
1374 | ||
330fc5c1 | 1375 | rb_dlinkFindDestroy(source_p, &global_serv_list); |
212380e3 AC |
1376 | |
1377 | if(has_id(source_p)) | |
1378 | del_from_id_hash(source_p->id, source_p); | |
1379 | ||
1380 | del_from_client_hash(source_p->name, source_p); | |
1381 | remove_client_from_list(source_p); | |
19807b5b | 1382 | scache_split(source_p->serv->nameinfo); |
212380e3 AC |
1383 | |
1384 | SetDead(source_p); | |
330fc5c1 | 1385 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1386 | return 0; |
1387 | } | |
1388 | ||
1389 | static int | |
1390 | exit_local_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1391 | const char *comment) | |
1392 | { | |
1393 | static char comment1[(HOSTLEN*2)+2]; | |
1394 | static char newcomment[BUFSIZE]; | |
1395 | unsigned int sendk, recvk; | |
1396 | ||
330fc5c1 AC |
1397 | rb_dlinkDelete(&source_p->localClient->tnode, &serv_list); |
1398 | rb_dlinkFindDestroy(source_p, &global_serv_list); | |
212380e3 AC |
1399 | |
1400 | unset_chcap_usage_counts(source_p); | |
1401 | sendk = source_p->localClient->sendK; | |
1402 | recvk = source_p->localClient->receiveK; | |
1403 | ||
1404 | /* Always show source here, so the server notices show | |
1405 | * which side initiated the split -- jilles | |
1406 | */ | |
b2f0da88 | 1407 | rb_snprintf(newcomment, sizeof(newcomment), "by %s: %s", |
212380e3 AC |
1408 | from == source_p ? me.name : from->name, comment); |
1409 | if (!IsIOError(source_p)) | |
1410 | sendto_one(source_p, "SQUIT %s :%s", use_id(source_p), | |
1411 | newcomment); | |
1412 | if(client_p != NULL && source_p != client_p && !IsIOError(source_p)) | |
1413 | { | |
1414 | sendto_one(source_p, "ERROR :Closing Link: 127.0.0.1 %s (%s)", | |
1415 | source_p->name, comment); | |
1416 | } | |
1417 | ||
212380e3 | 1418 | if(source_p->servptr && source_p->servptr->serv) |
330fc5c1 | 1419 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 AC |
1420 | else |
1421 | s_assert(0); | |
1422 | ||
1423 | ||
1424 | close_connection(source_p); | |
1425 | ||
1426 | if(ConfigServerHide.flatten_links) | |
1427 | strcpy(comment1, "*.net *.split"); | |
1428 | else | |
1429 | { | |
66c8fdd2 | 1430 | strcpy(comment1, source_p->servptr->name); |
212380e3 AC |
1431 | strcat(comment1, " "); |
1432 | strcat(comment1, source_p->name); | |
1433 | } | |
1434 | ||
1435 | if(source_p->serv != NULL) | |
1436 | remove_dependents(client_p, source_p, from, IsPerson(from) ? newcomment : comment, comment1); | |
1437 | ||
1438 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s was connected" | |
1439 | " for %ld seconds. %d/%d sendK/recvK.", | |
adc6cc42 | 1440 | source_p->name, (long) rb_current_time() - source_p->localClient->firsttime, sendk, recvk); |
212380e3 AC |
1441 | |
1442 | ilog(L_SERVER, "%s was connected for %ld seconds. %d/%d sendK/recvK.", | |
adc6cc42 | 1443 | source_p->name, (long) rb_current_time() - source_p->localClient->firsttime, sendk, recvk); |
212380e3 AC |
1444 | |
1445 | if(has_id(source_p)) | |
1446 | del_from_id_hash(source_p->id, source_p); | |
1447 | ||
1448 | del_from_client_hash(source_p->name, source_p); | |
1449 | remove_client_from_list(source_p); | |
994544c2 | 1450 | scache_split(source_p->serv->nameinfo); |
212380e3 AC |
1451 | |
1452 | SetDead(source_p); | |
330fc5c1 | 1453 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1454 | return 0; |
1455 | } | |
1456 | ||
1457 | ||
1458 | /* | |
1459 | * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE | |
1460 | */ | |
1461 | ||
1462 | static int | |
1463 | exit_local_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1464 | const char *comment) | |
1465 | { | |
1466 | unsigned long on_for; | |
08d75d97 | 1467 | char tbuf[26]; |
212380e3 AC |
1468 | |
1469 | exit_generic_client(client_p, source_p, from, comment); | |
1470 | clear_monitor(source_p); | |
1471 | ||
1472 | s_assert(IsPerson(source_p)); | |
330fc5c1 AC |
1473 | rb_dlinkDelete(&source_p->localClient->tnode, &lclient_list); |
1474 | rb_dlinkDelete(&source_p->lnode, &me.serv->users); | |
212380e3 AC |
1475 | |
1476 | if(IsOper(source_p)) | |
330fc5c1 | 1477 | rb_dlinkFindDestroy(source_p, &local_oper_list); |
212380e3 AC |
1478 | |
1479 | sendto_realops_snomask(SNO_CCONN, L_ALL, | |
1480 | "Client exiting: %s (%s@%s) [%s] [%s]", | |
1481 | source_p->name, | |
1482 | source_p->username, source_p->host, comment, | |
1483 | show_ip(NULL, source_p) ? source_p->sockhost : "255.255.255.255"); | |
1484 | ||
1485 | sendto_realops_snomask(SNO_CCONNEXT, L_ALL, | |
1486 | "CLIEXIT %s %s %s %s 0 %s", | |
1487 | source_p->name, source_p->username, source_p->host, | |
1488 | show_ip(NULL, source_p) ? source_p->sockhost : "255.255.255.255", | |
1489 | comment); | |
1490 | ||
e3354945 | 1491 | on_for = rb_current_time() - source_p->localClient->firsttime; |
212380e3 | 1492 | |
9641f156 | 1493 | ilog(L_USER, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d", |
08d75d97 | 1494 | rb_ctime(rb_current_time(), tbuf, sizeof(tbuf)), on_for / 3600, |
212380e3 AC |
1495 | (on_for % 3600) / 60, on_for % 60, |
1496 | source_p->name, source_p->username, source_p->host, | |
9641f156 | 1497 | source_p->sockhost, |
212380e3 AC |
1498 | source_p->localClient->sendK, source_p->localClient->receiveK); |
1499 | ||
1500 | sendto_one(source_p, "ERROR :Closing Link: %s (%s)", source_p->host, comment); | |
1501 | close_connection(source_p); | |
1502 | ||
1503 | if((source_p->flags & FLAGS_KILLED) == 0) | |
1504 | { | |
1505 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, | |
1506 | ":%s QUIT :%s", use_id(source_p), comment); | |
212380e3 AC |
1507 | } |
1508 | ||
1509 | SetDead(source_p); | |
330fc5c1 | 1510 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1511 | return(CLIENT_EXITED); |
1512 | } | |
1513 | ||
1514 | ||
1515 | /* | |
1516 | ** exit_client - This is old "m_bye". Name changed, because this is not a | |
1517 | ** protocol function, but a general server utility function. | |
1518 | ** | |
1519 | ** This function exits a client of *any* type (user, server, etc) | |
1520 | ** from this server. Also, this generates all necessary prototol | |
1521 | ** messages that this exit may cause. | |
1522 | ** | |
1523 | ** 1) If the client is a local client, then this implicitly | |
1524 | ** exits all other clients depending on this connection (e.g. | |
1525 | ** remote clients having 'from'-field that points to this. | |
1526 | ** | |
1527 | ** 2) If the client is a remote client, then only this is exited. | |
1528 | ** | |
1529 | ** For convenience, this function returns a suitable value for | |
1530 | ** m_function return value: | |
1531 | ** | |
1532 | ** CLIENT_EXITED if (client_p == source_p) | |
1533 | ** 0 if (client_p != source_p) | |
1534 | */ | |
1535 | int | |
1536 | exit_client(struct Client *client_p, /* The local client originating the | |
1537 | * exit or NULL, if this exit is | |
1538 | * generated by this server for | |
1539 | * internal reasons. | |
1540 | * This will not get any of the | |
1541 | * generated messages. */ | |
1542 | struct Client *source_p, /* Client exiting */ | |
1543 | struct Client *from, /* Client firing off this Exit, | |
1544 | * never NULL! */ | |
1545 | const char *comment /* Reason for the exit */ | |
1546 | ) | |
1547 | { | |
1548 | hook_data_client_exit hdata; | |
1549 | if(IsClosing(source_p)) | |
1550 | return -1; | |
1551 | ||
1552 | /* note, this HAS to be here, when we exit a client we attempt to | |
1553 | * send them data, if this generates a write error we must *not* add | |
1554 | * them to the abort list --fl | |
1555 | */ | |
1556 | SetClosing(source_p); | |
1557 | ||
1558 | hdata.local_link = client_p; | |
1559 | hdata.target = source_p; | |
1560 | hdata.from = from; | |
1561 | hdata.comment = comment; | |
1562 | call_hook(h_client_exit, &hdata); | |
1563 | ||
1564 | if(MyConnect(source_p)) | |
1565 | { | |
1566 | /* Local clients of various types */ | |
1567 | if(IsPerson(source_p)) | |
1568 | return exit_local_client(client_p, source_p, from, comment); | |
1569 | else if(IsServer(source_p)) | |
1570 | return exit_local_server(client_p, source_p, from, comment); | |
1571 | /* IsUnknown || IsConnecting || IsHandShake */ | |
1572 | else if(!IsReject(source_p)) | |
1573 | return exit_unknown_client(client_p, source_p, from, comment); | |
1574 | } | |
1575 | else | |
1576 | { | |
1577 | /* Remotes */ | |
1578 | if(IsPerson(source_p)) | |
1579 | return exit_remote_client(client_p, source_p, from, comment); | |
1580 | else if(IsServer(source_p)) | |
1581 | return exit_remote_server(client_p, source_p, from, comment); | |
1582 | } | |
1583 | ||
1584 | return -1; | |
1585 | } | |
1586 | ||
1587 | /* | |
1588 | * Count up local client memory | |
1589 | */ | |
1590 | ||
1591 | /* XXX one common Client list now */ | |
1592 | void | |
1593 | count_local_client_memory(size_t * count, size_t * local_client_memory_used) | |
1594 | { | |
1087485c JT |
1595 | size_t lusage; |
1596 | rb_bh_usage(lclient_heap, count, NULL, &lusage, NULL); | |
adc6cc42 | 1597 | *local_client_memory_used = lusage + (*count * (sizeof(void *) + sizeof(struct Client))); |
212380e3 AC |
1598 | } |
1599 | ||
1600 | /* | |
1601 | * Count up remote client memory | |
1602 | */ | |
1603 | void | |
1604 | count_remote_client_memory(size_t * count, size_t * remote_client_memory_used) | |
1605 | { | |
1087485c JT |
1606 | size_t lcount, rcount; |
1607 | rb_bh_usage(lclient_heap, &lcount, NULL, NULL, NULL); | |
1608 | rb_bh_usage(client_heap, &rcount, NULL, NULL, NULL); | |
1609 | *count = rcount - lcount; | |
adc6cc42 | 1610 | *remote_client_memory_used = *count * (sizeof(void *) + sizeof(struct Client)); |
212380e3 AC |
1611 | } |
1612 | ||
1613 | ||
1614 | /* | |
1615 | * accept processing, this adds a form of "caller ID" to ircd | |
1616 | * | |
1617 | * If a client puts themselves into "caller ID only" mode, | |
1618 | * only clients that match a client pointer they have put on | |
1619 | * the accept list will be allowed to message them. | |
1620 | * | |
1621 | * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ] | |
1622 | * | |
1623 | * [target.allow_list] -> [ source1 ] -> [source2 ] | |
1624 | * | |
1625 | * i.e. a target will have a link list of source pointers it will allow | |
1626 | * each source client then has a back pointer pointing back | |
1627 | * to the client that has it on its accept list. | |
1628 | * This allows for exit_one_client to remove these now bogus entries | |
1629 | * from any client having an accept on them. | |
1630 | */ | |
1631 | /* | |
1632 | * del_all_accepts | |
1633 | * | |
1634 | * inputs - pointer to exiting client | |
1635 | * output - NONE | |
1636 | * side effects - Walk through given clients allow_list and on_allow_list | |
1637 | * remove all references to this client | |
1638 | */ | |
1639 | void | |
1640 | del_all_accepts(struct Client *client_p) | |
1641 | { | |
330fc5c1 | 1642 | rb_dlink_node *ptr; |
637c4932 | 1643 | rb_dlink_node *next_ptr; |
212380e3 AC |
1644 | struct Client *target_p; |
1645 | ||
1646 | if(MyClient(client_p) && client_p->localClient->allow_list.head) | |
1647 | { | |
1648 | /* clear this clients accept list, and remove them from | |
1649 | * everyones on_accept_list | |
1650 | */ | |
637c4932 | 1651 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->localClient->allow_list.head) |
212380e3 AC |
1652 | { |
1653 | target_p = ptr->data; | |
330fc5c1 AC |
1654 | rb_dlinkFindDestroy(client_p, &target_p->on_allow_list); |
1655 | rb_dlinkDestroy(ptr, &client_p->localClient->allow_list); | |
212380e3 AC |
1656 | } |
1657 | } | |
1658 | ||
1659 | /* remove this client from everyones accept list */ | |
637c4932 | 1660 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->on_allow_list.head) |
212380e3 AC |
1661 | { |
1662 | target_p = ptr->data; | |
330fc5c1 AC |
1663 | rb_dlinkFindDestroy(client_p, &target_p->localClient->allow_list); |
1664 | rb_dlinkDestroy(ptr, &client_p->on_allow_list); | |
212380e3 AC |
1665 | } |
1666 | } | |
1667 | ||
1668 | /* | |
1669 | * show_ip() - asks if the true IP shoudl be shown when source is | |
1670 | * askin for info about target | |
1671 | * | |
1672 | * Inputs - source_p who is asking | |
1673 | * - target_p who do we want the info on | |
1674 | * Output - returns 1 if clear IP can be showed, otherwise 0 | |
1675 | * Side Effects - none | |
1676 | */ | |
1677 | ||
1678 | int | |
1679 | show_ip(struct Client *source_p, struct Client *target_p) | |
1680 | { | |
1681 | if(IsAnyServer(target_p)) | |
1682 | { | |
212380e3 AC |
1683 | return 0; |
1684 | } | |
1685 | else if(IsIPSpoof(target_p)) | |
1686 | { | |
1687 | /* source == NULL indicates message is being sent | |
1688 | * to local opers. | |
1689 | */ | |
1690 | if(!ConfigFileEntry.hide_spoof_ips && | |
1691 | (source_p == NULL || MyOper(source_p))) | |
1692 | return 1; | |
1693 | return 0; | |
1694 | } | |
1695 | else if(IsDynSpoof(target_p) && (source_p != NULL && !IsOper(source_p))) | |
1696 | return 0; | |
1697 | else | |
1698 | return 1; | |
1699 | } | |
1700 | ||
1701 | int | |
1702 | show_ip_conf(struct ConfItem *aconf, struct Client *source_p) | |
1703 | { | |
1704 | if(IsConfDoSpoofIp(aconf)) | |
1705 | { | |
1706 | if(!ConfigFileEntry.hide_spoof_ips && MyOper(source_p)) | |
1707 | return 1; | |
1708 | ||
1709 | return 0; | |
1710 | } | |
1711 | else | |
1712 | return 1; | |
1713 | } | |
1714 | ||
212380e3 AC |
1715 | /* |
1716 | * make_user | |
1717 | * | |
1718 | * inputs - pointer to client struct | |
1719 | * output - pointer to struct User | |
1720 | * side effects - add's an User information block to a client | |
1721 | * if it was not previously allocated. | |
1722 | */ | |
1723 | struct User * | |
1724 | make_user(struct Client *client_p) | |
1725 | { | |
1726 | struct User *user; | |
1727 | ||
1728 | user = client_p->user; | |
1729 | if(!user) | |
1730 | { | |
398b6a73 | 1731 | user = (struct User *) rb_bh_alloc(user_heap); |
212380e3 AC |
1732 | user->refcnt = 1; |
1733 | client_p->user = user; | |
1734 | } | |
1735 | return user; | |
1736 | } | |
1737 | ||
1738 | /* | |
1739 | * make_server | |
1740 | * | |
1741 | * inputs - pointer to client struct | |
1742 | * output - pointer to server_t | |
1743 | * side effects - add's an Server information block to a client | |
1744 | * if it was not previously allocated. | |
1745 | */ | |
1746 | server_t * | |
1747 | make_server(struct Client *client_p) | |
1748 | { | |
1749 | server_t *serv = client_p->serv; | |
1750 | ||
1751 | if(!serv) | |
1752 | { | |
eddc2ab6 | 1753 | serv = (server_t *) rb_malloc(sizeof(server_t)); |
212380e3 AC |
1754 | client_p->serv = serv; |
1755 | } | |
1756 | return client_p->serv; | |
1757 | } | |
1758 | ||
1759 | /* | |
1760 | * free_user | |
1761 | * | |
1762 | * inputs - pointer to user struct | |
1763 | * - pointer to client struct | |
1764 | * output - none | |
1765 | * side effects - Decrease user reference count by one and release block, | |
1766 | * if count reaches 0 | |
1767 | */ | |
1768 | void | |
1769 | free_user(struct User *user, struct Client *client_p) | |
1770 | { | |
adc6cc42 VY |
1771 | free_away(client_p); |
1772 | ||
212380e3 AC |
1773 | if(--user->refcnt <= 0) |
1774 | { | |
1775 | if(user->away) | |
637c4932 | 1776 | rb_free((char *) user->away); |
212380e3 AC |
1777 | /* |
1778 | * sanity check | |
1779 | */ | |
1780 | if(user->refcnt < 0 || user->invited.head || user->channel.head) | |
1781 | { | |
1782 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1783 | "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *", | |
1784 | (unsigned long) client_p, | |
1785 | client_p ? client_p-> | |
1786 | name : "<noname>", | |
1787 | client_p->username, | |
1788 | client_p->host, | |
1789 | (unsigned long) user, | |
1790 | (unsigned long) user->invited.head, | |
1791 | (unsigned long) user->channel.head, | |
330fc5c1 | 1792 | rb_dlink_list_length(&user->channel), |
212380e3 AC |
1793 | user->refcnt); |
1794 | s_assert(!user->refcnt); | |
1795 | s_assert(!user->invited.head); | |
1796 | s_assert(!user->channel.head); | |
1797 | } | |
1798 | ||
398b6a73 | 1799 | rb_bh_free(user_heap, user); |
212380e3 AC |
1800 | } |
1801 | } | |
1802 | ||
adc6cc42 VY |
1803 | void |
1804 | allocate_away(struct Client *client_p) | |
1805 | { | |
1806 | if(client_p->user->away == NULL) | |
1807 | client_p->user->away = rb_bh_alloc(away_heap); | |
1808 | } | |
1809 | ||
1810 | ||
1811 | void | |
1812 | free_away(struct Client *client_p) | |
1813 | { | |
d18a9c05 | 1814 | if(client_p->user != NULL && client_p->user->away != NULL) { |
adc6cc42 VY |
1815 | rb_bh_free(away_heap, client_p->user->away); |
1816 | client_p->user->away = NULL; | |
1817 | } | |
300a5433 VY |
1818 | } |
1819 | ||
212380e3 AC |
1820 | void |
1821 | init_uid(void) | |
1822 | { | |
1823 | int i; | |
1824 | ||
1825 | for(i = 0; i < 3; i++) | |
1826 | current_uid[i] = me.id[i]; | |
1827 | ||
1828 | for(i = 3; i < 9; i++) | |
1829 | current_uid[i] = 'A'; | |
1830 | ||
1831 | current_uid[9] = '\0'; | |
1832 | } | |
1833 | ||
1834 | ||
1835 | char * | |
1836 | generate_uid(void) | |
1837 | { | |
1838 | int i; | |
1839 | ||
1840 | for(i = 8; i > 3; i--) | |
1841 | { | |
1842 | if(current_uid[i] == 'Z') | |
1843 | { | |
1844 | current_uid[i] = '0'; | |
1845 | return current_uid; | |
1846 | } | |
1847 | else if(current_uid[i] != '9') | |
1848 | { | |
1849 | current_uid[i]++; | |
1850 | return current_uid; | |
1851 | } | |
1852 | else | |
1853 | current_uid[i] = 'A'; | |
1854 | } | |
1855 | ||
1856 | /* if this next if() triggers, we're fucked. */ | |
1857 | if(current_uid[3] == 'Z') | |
1858 | { | |
1859 | current_uid[i] = 'A'; | |
1860 | s_assert(0); | |
1861 | } | |
1862 | else | |
1863 | current_uid[i]++; | |
1864 | ||
1865 | return current_uid; | |
1866 | } | |
1867 | ||
1868 | /* | |
1869 | * close_connection | |
1870 | * Close the physical connection. This function must make | |
1871 | * MyConnect(client_p) == FALSE, and set client_p->from == NULL. | |
1872 | */ | |
1873 | void | |
1874 | close_connection(struct Client *client_p) | |
1875 | { | |
1876 | s_assert(client_p != NULL); | |
1877 | if(client_p == NULL) | |
1878 | return; | |
1879 | ||
1880 | s_assert(MyConnect(client_p)); | |
1881 | if(!MyConnect(client_p)) | |
1882 | return; | |
1883 | ||
1884 | if(IsServer(client_p)) | |
1885 | { | |
1886 | struct server_conf *server_p; | |
1887 | ||
8bd5767b JT |
1888 | ServerStats.is_sv++; |
1889 | ServerStats.is_sbs += client_p->localClient->sendB; | |
1890 | ServerStats.is_sbr += client_p->localClient->receiveB; | |
679ccbe5 | 1891 | ServerStats.is_sti += (unsigned long long)(rb_current_time() - client_p->localClient->firsttime); |
212380e3 AC |
1892 | |
1893 | /* | |
1894 | * If the connection has been up for a long amount of time, schedule | |
1895 | * a 'quick' reconnect, else reset the next-connect cycle. | |
1896 | */ | |
1897 | if((server_p = find_server_conf(client_p->name)) != NULL) | |
1898 | { | |
1899 | /* | |
1900 | * Reschedule a faster reconnect, if this was a automatically | |
1901 | * connected configuration entry. (Note that if we have had | |
1902 | * a rehash in between, the status has been changed to | |
1903 | * CONF_ILLEGAL). But only do this if it was a "good" link. | |
1904 | */ | |
1905 | server_p->hold = time(NULL); | |
1906 | server_p->hold += | |
1907 | (server_p->hold - client_p->localClient->lasttime > | |
1908 | HANGONGOODLINK) ? HANGONRETRYDELAY : ConFreq(server_p->class); | |
1909 | } | |
1910 | ||
1911 | } | |
1912 | else if(IsClient(client_p)) | |
1913 | { | |
8bd5767b JT |
1914 | ServerStats.is_cl++; |
1915 | ServerStats.is_cbs += client_p->localClient->sendB; | |
1916 | ServerStats.is_cbr += client_p->localClient->receiveB; | |
679ccbe5 | 1917 | ServerStats.is_cti += (unsigned long long)(rb_current_time() - client_p->localClient->firsttime); |
212380e3 AC |
1918 | } |
1919 | else | |
47adde3d | 1920 | ServerStats.is_ni++; |
54ac8b60 | 1921 | |
c6d72037 | 1922 | if(client_p->localClient->F != NULL) |
54ac8b60 VY |
1923 | { |
1924 | /* attempt to flush any pending dbufs. Evil, but .. -- adrian */ | |
1925 | if(!IsIOError(client_p)) | |
1926 | send_queued(client_p); | |
1927 | ||
c6d72037 | 1928 | del_from_cli_fd_hash(client_p); |
54ac8b60 VY |
1929 | rb_close(client_p->localClient->F); |
1930 | client_p->localClient->F = NULL; | |
1931 | } | |
1932 | ||
734d420e JT |
1933 | rb_linebuf_donebuf(&client_p->localClient->buf_sendq); |
1934 | rb_linebuf_donebuf(&client_p->localClient->buf_recvq); | |
212380e3 AC |
1935 | detach_conf(client_p); |
1936 | ||
1937 | /* XXX shouldnt really be done here. */ | |
1938 | detach_server_conf(client_p); | |
1939 | ||
1940 | client_p->from = NULL; /* ...this should catch them! >:) --msa */ | |
1941 | ClearMyConnect(client_p); | |
1942 | SetIOError(client_p); | |
1943 | } | |
1944 | ||
1945 | ||
1946 | ||
1947 | void | |
1948 | error_exit_client(struct Client *client_p, int error) | |
1949 | { | |
1950 | /* | |
1951 | * ...hmm, with non-blocking sockets we might get | |
1952 | * here from quite valid reasons, although.. why | |
1953 | * would select report "data available" when there | |
1954 | * wasn't... so, this must be an error anyway... --msa | |
1955 | * actually, EOF occurs when read() returns 0 and | |
1956 | * in due course, select() returns that fd as ready | |
1957 | * for reading even though it ends up being an EOF. -avalon | |
1958 | */ | |
1959 | char errmsg[255]; | |
734d420e | 1960 | int current_error = rb_get_sockerr(client_p->localClient->F); |
212380e3 AC |
1961 | |
1962 | SetIOError(client_p); | |
1963 | ||
1964 | if(IsServer(client_p) || IsHandshake(client_p)) | |
1965 | { | |
212380e3 AC |
1966 | if(error == 0) |
1967 | { | |
1968 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) && !IsServer(client_p) ? L_NETWIDE : L_ALL, | |
1969 | "Server %s closed the connection", | |
b3ebc7ab | 1970 | client_p->name); |
212380e3 AC |
1971 | |
1972 | ilog(L_SERVER, "Server %s closed the connection", | |
1973 | log_client_name(client_p, SHOW_IP)); | |
1974 | } | |
1975 | else | |
1976 | { | |
1977 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) && !IsServer(client_p) ? L_NETWIDE : L_ALL, | |
1978 | "Lost connection to %s: %s", | |
1979 | client_p->name, strerror(current_error)); | |
1980 | ilog(L_SERVER, "Lost connection to %s: %s", | |
1981 | log_client_name(client_p, SHOW_IP), strerror(current_error)); | |
1982 | } | |
212380e3 AC |
1983 | } |
1984 | ||
1985 | if(error == 0) | |
f427c8b0 | 1986 | rb_strlcpy(errmsg, "Remote host closed the connection", sizeof(errmsg)); |
212380e3 | 1987 | else |
b2f0da88 | 1988 | rb_snprintf(errmsg, sizeof(errmsg), "Read error: %s", strerror(current_error)); |
212380e3 AC |
1989 | |
1990 | exit_client(client_p, client_p, &me, errmsg); | |
1991 | } |