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212380e3 | 1 | /* |
b37021a4 | 2 | * charybdis: an advanced ircd. |
212380e3 | 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 | 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 | 26 | */ |
27 | #include "stdinc.h" | |
28 | #include "config.h" | |
29 | ||
212380e3 | 30 | #include "client.h" |
31 | #include "class.h" | |
32 | #include "common.h" | |
212380e3 | 33 | #include "hash.h" |
13ae2f4b | 34 | #include "match.h" |
212380e3 | 35 | #include "ircd.h" |
212380e3 | 36 | #include "numeric.h" |
37 | #include "packet.h" | |
38 | #include "s_auth.h" | |
212380e3 | 39 | #include "s_conf.h" |
40 | #include "s_newconf.h" | |
d3455e2c | 41 | #include "logger.h" |
212380e3 | 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 | 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" |
8db00894 | 57 | #include "sslproc.h" |
212380e3 | 58 | |
59 | #define DEBUG_EXITED_CLIENTS | |
60 | ||
af81d5a0 WP |
61 | static void check_pings_list(rb_dlink_list * list); |
62 | static void check_unknowns_list(rb_dlink_list * list); | |
212380e3 | 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 | ||
6992eef0 VY |
75 | static rb_bh *client_heap = NULL; |
76 | static rb_bh *lclient_heap = NULL; | |
bb79db15 | 77 | static rb_bh *pclient_heap = NULL; |
6992eef0 | 78 | static rb_bh *user_heap = NULL; |
c387fc41 | 79 | static rb_bh *away_heap = NULL; |
6992eef0 | 80 | static char current_uid[IDLEN]; |
212380e3 | 81 | |
43de0f45 WP |
82 | struct Dictionary *nd_dict = NULL; |
83 | ||
212380e3 | 84 | enum |
85 | { | |
86 | D_LINED, | |
c6525f80 | 87 | K_LINED |
212380e3 | 88 | }; |
89 | ||
af81d5a0 | 90 | rb_dlink_list dead_list; |
212380e3 | 91 | #ifdef DEBUG_EXITED_CLIENTS |
af81d5a0 | 92 | static rb_dlink_list dead_remote_list; |
212380e3 | 93 | #endif |
94 | ||
95 | struct abort_client | |
96 | { | |
af81d5a0 | 97 | rb_dlink_node node; |
212380e3 | 98 | struct Client *client; |
99 | char notice[REASONLEN]; | |
100 | }; | |
101 | ||
af81d5a0 | 102 | static rb_dlink_list abort_list; |
212380e3 | 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 | */ | |
ae4091d2 | 119 | client_heap = rb_bh_create(sizeof(struct Client), CLIENT_HEAP_SIZE, "client_heap"); |
784fdac0 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"); | |
bb79db15 | 122 | user_heap = rb_bh_create(sizeof(struct User), USER_HEAP_SIZE, "user_heap"); |
c387fc41 | 123 | away_heap = rb_bh_create(AWAYLEN, AWAY_HEAP_SIZE, "away_heap"); |
784fdac0 | 124 | |
780087dc 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); | |
6227ed01 | 128 | rb_event_add("flood_recalc", flood_recalc, NULL, 1); |
43de0f45 WP |
129 | |
130 | nd_dict = irc_dictionary_create(irccmp); | |
212380e3 | 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 | ||
6e9b4415 | 150 | client_p = rb_bh_alloc(client_heap); |
212380e3 | 151 | |
152 | if(from == NULL) | |
153 | { | |
154 | client_p->from = client_p; /* 'from' of local client is self! */ | |
155 | ||
bb79db15 | 156 | localClient = rb_bh_alloc(lclient_heap); |
212380e3 | 157 | SetMyConnect(client_p); |
158 | client_p->localClient = localClient; | |
159 | ||
9f6bbe3c | 160 | client_p->localClient->lasttime = client_p->localClient->firsttime = rb_current_time(); |
212380e3 | 161 | |
de057244 | 162 | client_p->localClient->F = NULL; |
212380e3 | 163 | |
bb79db15 | 164 | client_p->preClient = rb_bh_alloc(pclient_heap);; |
212380e3 | 165 | |
166 | /* as good a place as any... */ | |
af81d5a0 | 167 | rb_dlinkAdd(client_p, &client_p->localClient->tnode, &unknown_list); |
212380e3 | 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); | |
6e9b4415 | 196 | rb_bh_free(pclient_heap, client_p->preClient); |
212380e3 | 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 | ||
8db00894 VY |
221 | if(client_p->localClient->F != NULL) |
222 | { | |
223 | del_from_cli_fd_hash(client_p); | |
780087dc | 224 | rb_close(client_p->localClient->F); |
8db00894 | 225 | } |
212380e3 | 226 | |
227 | if(client_p->localClient->passwd) | |
228 | { | |
229 | memset(client_p->localClient->passwd, 0, | |
230 | strlen(client_p->localClient->passwd)); | |
90a3c35b | 231 | rb_free(client_p->localClient->passwd); |
212380e3 | 232 | } |
233 | ||
66a18095 | 234 | rb_free(client_p->localClient->auth_user); |
1332a0ef JH |
235 | |
236 | if(client_p->localClient->override_timeout_event) | |
237 | { | |
238 | rb_event_delete(client_p->localClient->override_timeout_event); | |
239 | } | |
240 | ||
90a3c35b VY |
241 | rb_free(client_p->localClient->challenge); |
242 | rb_free(client_p->localClient->fullcaps); | |
243 | rb_free(client_p->localClient->opername); | |
244 | rb_free(client_p->localClient->mangledhost); | |
0ba0bb4c JT |
245 | if (client_p->localClient->privset) |
246 | privilegeset_unref(client_p->localClient->privset); | |
212380e3 | 247 | |
62271ba9 AS |
248 | if(IsSSL(client_p)) |
249 | ssld_decrement_clicount(client_p->localClient->ssl_ctl); | |
250 | ||
251 | if(IsCapable(client_p, CAP_ZIP)) | |
252 | ssld_decrement_clicount(client_p->localClient->z_ctl); | |
8db00894 | 253 | |
6e9b4415 | 254 | rb_bh_free(lclient_heap, client_p->localClient); |
212380e3 | 255 | client_p->localClient = NULL; |
256 | } | |
257 | ||
258 | void | |
259 | free_client(struct Client *client_p) | |
260 | { | |
261 | s_assert(NULL != client_p); | |
262 | s_assert(&me != client_p); | |
263 | free_local_client(client_p); | |
264 | free_pre_client(client_p); | |
54656d76 | 265 | rb_free(client_p->certfp); |
6e9b4415 | 266 | rb_bh_free(client_heap, client_p); |
212380e3 | 267 | } |
268 | ||
269 | /* | |
270 | * check_pings - go through the local client list and check activity | |
271 | * kill off stuff that should die | |
272 | * | |
273 | * inputs - NOT USED (from event) | |
274 | * output - next time_t when check_pings() should be called again | |
275 | * side effects - | |
276 | * | |
277 | * | |
278 | * A PING can be sent to clients as necessary. | |
279 | * | |
280 | * Client/Server ping outs are handled. | |
281 | */ | |
282 | ||
283 | /* | |
284 | * Addon from adrian. We used to call this after nextping seconds, | |
285 | * however I've changed it to run once a second. This is only for | |
286 | * PING timeouts, not K/etc-line checks (thanks dianora!). Having it | |
287 | * run once a second makes life a lot easier - when a new client connects | |
288 | * and they need a ping in 4 seconds, if nextping was set to 20 seconds | |
289 | * we end up waiting 20 seconds. This is stupid. :-) | |
290 | * I will optimise (hah!) check_pings() once I've finished working on | |
291 | * tidying up other network IO evilnesses. | |
292 | * -- adrian | |
293 | */ | |
294 | ||
295 | static void | |
296 | check_pings(void *notused) | |
297 | { | |
298 | check_pings_list(&lclient_list); | |
299 | check_pings_list(&serv_list); | |
300 | check_unknowns_list(&unknown_list); | |
301 | } | |
302 | ||
303 | /* | |
304 | * Check_pings_list() | |
305 | * | |
306 | * inputs - pointer to list to check | |
307 | * output - NONE | |
308 | * side effects - | |
309 | */ | |
310 | static void | |
af81d5a0 | 311 | check_pings_list(rb_dlink_list * list) |
212380e3 | 312 | { |
313 | char scratch[32]; /* way too generous but... */ | |
314 | struct Client *client_p; /* current local client_p being examined */ | |
315 | int ping = 0; /* ping time value from client */ | |
90a3c35b | 316 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 317 | |
90a3c35b | 318 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 | 319 | { |
320 | client_p = ptr->data; | |
321 | ||
212380e3 | 322 | if(!MyConnect(client_p) || IsDead(client_p)) |
323 | continue; | |
324 | ||
e883cf07 | 325 | ping = get_client_ping(client_p); |
212380e3 | 326 | |
9f6bbe3c | 327 | if(ping < (rb_current_time() - client_p->localClient->lasttime)) |
212380e3 | 328 | { |
329 | /* | |
330 | * If the client/server hasnt talked to us in 2*ping seconds | |
331 | * and it has a ping time, then close its connection. | |
332 | */ | |
9f6bbe3c | 333 | if(((rb_current_time() - client_p->localClient->lasttime) >= (2 * ping) |
212380e3 | 334 | && (client_p->flags & FLAGS_PINGSENT))) |
335 | { | |
e883cf07 | 336 | if(IsServer(client_p)) |
212380e3 | 337 | { |
e883cf07 | 338 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
212380e3 | 339 | "No response from %s, closing link", |
715b28fe | 340 | client_p->name); |
212380e3 | 341 | ilog(L_SERVER, |
342 | "No response from %s, closing link", | |
343 | log_client_name(client_p, HIDE_IP)); | |
344 | } | |
38e6acdd | 345 | (void) rb_snprintf(scratch, sizeof(scratch), |
212380e3 | 346 | "Ping timeout: %d seconds", |
9f6bbe3c | 347 | (int) (rb_current_time() - client_p->localClient->lasttime)); |
212380e3 | 348 | |
349 | exit_client(client_p, client_p, &me, scratch); | |
350 | continue; | |
351 | } | |
352 | else if((client_p->flags & FLAGS_PINGSENT) == 0) | |
353 | { | |
354 | /* | |
355 | * if we havent PINGed the connection and we havent | |
356 | * heard from it in a while, PING it to make sure | |
357 | * it is still alive. | |
358 | */ | |
359 | client_p->flags |= FLAGS_PINGSENT; | |
360 | /* not nice but does the job */ | |
9f6bbe3c | 361 | client_p->localClient->lasttime = rb_current_time() - ping; |
212380e3 | 362 | sendto_one(client_p, "PING :%s", me.name); |
363 | } | |
364 | } | |
365 | /* ping_timeout: */ | |
366 | ||
367 | } | |
368 | } | |
369 | ||
370 | /* | |
371 | * check_unknowns_list | |
372 | * | |
373 | * inputs - pointer to list of unknown clients | |
374 | * output - NONE | |
375 | * side effects - unknown clients get marked for termination after n seconds | |
376 | */ | |
377 | static void | |
af81d5a0 | 378 | check_unknowns_list(rb_dlink_list * list) |
212380e3 | 379 | { |
90a3c35b | 380 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 381 | struct Client *client_p; |
16d59a0d | 382 | int timeout; |
212380e3 | 383 | |
90a3c35b | 384 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 | 385 | { |
386 | client_p = ptr->data; | |
387 | ||
388 | if(IsDead(client_p) || IsClosing(client_p)) | |
389 | continue; | |
390 | ||
8813d184 JT |
391 | /* still has DNSbls to validate against */ |
392 | if(client_p->preClient != NULL && | |
393 | rb_dlink_list_length(&client_p->preClient->dnsbl_queries) > 0) | |
394 | continue; | |
395 | ||
212380e3 | 396 | /* |
397 | * Check UNKNOWN connections - if they have been in this state | |
398 | * for > 30s, close them. | |
399 | */ | |
400 | ||
16d59a0d | 401 | timeout = IsAnyServer(client_p) ? ConfigFileEntry.connect_timeout : 30; |
9f6bbe3c | 402 | if((rb_current_time() - client_p->localClient->firsttime) > timeout) |
16d59a0d JT |
403 | { |
404 | if(IsAnyServer(client_p)) | |
405 | { | |
406 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) ? L_NETWIDE : L_ALL, | |
407 | "No response from %s, closing link", | |
715b28fe | 408 | client_p->name); |
16d59a0d JT |
409 | ilog(L_SERVER, |
410 | "No response from %s, closing link", | |
411 | log_client_name(client_p, HIDE_IP)); | |
412 | } | |
212380e3 | 413 | exit_client(client_p, client_p, &me, "Connection timed out"); |
16d59a0d | 414 | } |
212380e3 | 415 | } |
416 | } | |
417 | ||
418 | static void | |
419 | notify_banned_client(struct Client *client_p, struct ConfItem *aconf, int ban) | |
420 | { | |
421 | static const char conn_closed[] = "Connection closed"; | |
422 | static const char d_lined[] = "D-lined"; | |
423 | static const char k_lined[] = "K-lined"; | |
212380e3 | 424 | const char *reason = NULL; |
425 | const char *exit_reason = conn_closed; | |
426 | ||
157c1f04 | 427 | if(ConfigFileEntry.kline_with_reason) |
212380e3 | 428 | { |
157c1f04 | 429 | reason = get_user_ban_reason(aconf); |
ce60772d | 430 | exit_reason = reason; |
212380e3 | 431 | } |
432 | else | |
433 | { | |
4fd52c8c | 434 | reason = aconf->status == D_LINED ? d_lined : k_lined; |
212380e3 | 435 | } |
436 | ||
437 | if(ban == D_LINED && !IsPerson(client_p)) | |
438 | sendto_one(client_p, "NOTICE DLINE :*** You have been D-lined"); | |
439 | else | |
440 | sendto_one(client_p, form_str(ERR_YOUREBANNEDCREEP), | |
441 | me.name, client_p->name, reason); | |
442 | ||
443 | exit_client(client_p, client_p, &me, | |
444 | EmptyString(ConfigFileEntry.kline_reason) ? exit_reason : | |
445 | ConfigFileEntry.kline_reason); | |
446 | } | |
447 | ||
448 | /* | |
449 | * check_banned_lines | |
450 | * inputs - NONE | |
451 | * output - NONE | |
d5a432fa | 452 | * side effects - Check all connections for a pending k/dline against the |
212380e3 | 453 | * client, exit the client if found. |
454 | */ | |
455 | void | |
456 | check_banned_lines(void) | |
457 | { | |
48191237 JT |
458 | check_dlines(); |
459 | check_klines(); | |
460 | check_xlines(); | |
212380e3 | 461 | } |
462 | ||
463 | /* check_klines_event() | |
464 | * | |
465 | * inputs - | |
466 | * outputs - | |
467 | * side effects - check_klines() is called, kline_queued unset | |
468 | */ | |
469 | void | |
470 | check_klines_event(void *unused) | |
471 | { | |
472 | kline_queued = 0; | |
473 | check_klines(); | |
474 | } | |
475 | ||
476 | /* check_klines | |
477 | * | |
478 | * inputs - | |
479 | * outputs - | |
480 | * side effects - all clients will be checked for klines | |
481 | */ | |
482 | void | |
483 | check_klines(void) | |
484 | { | |
485 | struct Client *client_p; | |
486 | struct ConfItem *aconf; | |
af81d5a0 | 487 | rb_dlink_node *ptr; |
90a3c35b | 488 | rb_dlink_node *next_ptr; |
212380e3 | 489 | |
90a3c35b | 490 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 | 491 | { |
492 | client_p = ptr->data; | |
493 | ||
494 | if(IsMe(client_p) || !IsPerson(client_p)) | |
495 | continue; | |
496 | ||
497 | if((aconf = find_kline(client_p)) != NULL) | |
498 | { | |
499 | if(IsExemptKline(client_p)) | |
500 | { | |
501 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
13ea0f1c JT |
502 | "KLINE over-ruled for %s, client is kline_exempt [%s@%s]", |
503 | get_client_name(client_p, HIDE_IP), | |
504 | aconf->user, aconf->host); | |
212380e3 | 505 | continue; |
506 | } | |
507 | ||
508 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
509 | "KLINE active for %s", | |
510 | get_client_name(client_p, HIDE_IP)); | |
511 | ||
512 | notify_banned_client(client_p, aconf, K_LINED); | |
513 | continue; | |
514 | } | |
515 | } | |
516 | } | |
517 | ||
212380e3 | 518 | /* check_dlines() |
519 | * | |
520 | * inputs - | |
521 | * outputs - | |
522 | * side effects - all clients will be checked for dlines | |
523 | */ | |
524 | void | |
525 | check_dlines(void) | |
526 | { | |
527 | struct Client *client_p; | |
528 | struct ConfItem *aconf; | |
af81d5a0 | 529 | rb_dlink_node *ptr; |
90a3c35b | 530 | rb_dlink_node *next_ptr; |
212380e3 | 531 | |
90a3c35b | 532 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 | 533 | { |
534 | client_p = ptr->data; | |
535 | ||
536 | if(IsMe(client_p)) | |
537 | continue; | |
538 | ||
21c9d815 | 539 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family)) != NULL) |
212380e3 | 540 | { |
541 | if(aconf->status & CONF_EXEMPTDLINE) | |
542 | continue; | |
543 | ||
544 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
545 | "DLINE active for %s", | |
546 | get_client_name(client_p, HIDE_IP)); | |
547 | ||
548 | notify_banned_client(client_p, aconf, D_LINED); | |
549 | continue; | |
550 | } | |
551 | } | |
552 | ||
553 | /* dlines need to be checked against unknowns too */ | |
90a3c35b | 554 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head) |
212380e3 | 555 | { |
556 | client_p = ptr->data; | |
557 | ||
21c9d815 | 558 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family)) != NULL) |
212380e3 | 559 | { |
560 | if(aconf->status & CONF_EXEMPTDLINE) | |
561 | continue; | |
562 | ||
563 | notify_banned_client(client_p, aconf, D_LINED); | |
564 | } | |
565 | } | |
566 | } | |
567 | ||
568 | /* check_xlines | |
569 | * | |
570 | * inputs - | |
571 | * outputs - | |
572 | * side effects - all clients will be checked for xlines | |
573 | */ | |
574 | void | |
575 | check_xlines(void) | |
576 | { | |
577 | struct Client *client_p; | |
578 | struct ConfItem *aconf; | |
af81d5a0 | 579 | rb_dlink_node *ptr; |
90a3c35b | 580 | rb_dlink_node *next_ptr; |
212380e3 | 581 | |
90a3c35b | 582 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 | 583 | { |
584 | client_p = ptr->data; | |
585 | ||
586 | if(IsMe(client_p) || !IsPerson(client_p)) | |
587 | continue; | |
588 | ||
589 | if((aconf = find_xline(client_p->info, 1)) != NULL) | |
590 | { | |
591 | if(IsExemptKline(client_p)) | |
592 | { | |
593 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
13ea0f1c JT |
594 | "XLINE over-ruled for %s, client is kline_exempt [%s]", |
595 | get_client_name(client_p, HIDE_IP), | |
70c6c150 | 596 | aconf->host); |
212380e3 | 597 | continue; |
598 | } | |
599 | ||
600 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "XLINE active for %s", | |
601 | get_client_name(client_p, HIDE_IP)); | |
602 | ||
603 | (void) exit_client(client_p, client_p, &me, "Bad user info"); | |
604 | continue; | |
605 | } | |
606 | } | |
607 | } | |
608 | ||
609 | /* | |
610 | * update_client_exit_stats | |
611 | * | |
612 | * input - pointer to client | |
613 | * output - NONE | |
614 | * side effects - | |
615 | */ | |
616 | static void | |
617 | update_client_exit_stats(struct Client *client_p) | |
618 | { | |
619 | if(IsServer(client_p)) | |
620 | { | |
621 | sendto_realops_snomask(SNO_EXTERNAL, L_ALL, | |
622 | "Server %s split from %s", | |
623 | client_p->name, client_p->servptr->name); | |
624 | if(HasSentEob(client_p)) | |
625 | eob_count--; | |
626 | } | |
627 | else if(IsClient(client_p)) | |
628 | { | |
629 | --Count.total; | |
630 | if(IsOper(client_p)) | |
631 | --Count.oper; | |
632 | if(IsInvisible(client_p)) | |
633 | --Count.invisi; | |
634 | } | |
635 | ||
636 | if(splitchecking && !splitmode) | |
637 | check_splitmode(NULL); | |
638 | } | |
639 | ||
640 | /* | |
641 | * release_client_state | |
642 | * | |
643 | * input - pointer to client to release | |
644 | * output - NONE | |
645 | * side effects - | |
646 | */ | |
647 | static void | |
648 | release_client_state(struct Client *client_p) | |
649 | { | |
650 | if(client_p->user != NULL) | |
651 | { | |
652 | free_user(client_p->user, client_p); /* try this here */ | |
653 | } | |
654 | if(client_p->serv) | |
655 | { | |
656 | if(client_p->serv->user != NULL) | |
657 | free_user(client_p->serv->user, client_p); | |
658 | if(client_p->serv->fullcaps) | |
90a3c35b VY |
659 | rb_free(client_p->serv->fullcaps); |
660 | rb_free(client_p->serv); | |
212380e3 | 661 | } |
662 | } | |
663 | ||
664 | /* | |
665 | * remove_client_from_list | |
666 | * inputs - point to client to remove | |
667 | * output - NONE | |
668 | * side effects - taken the code from ExitOneClient() for this | |
669 | * and placed it here. - avalon | |
670 | */ | |
671 | static void | |
672 | remove_client_from_list(struct Client *client_p) | |
673 | { | |
674 | s_assert(NULL != client_p); | |
675 | ||
676 | if(client_p == NULL) | |
677 | return; | |
678 | ||
679 | /* A client made with make_client() | |
680 | * is on the unknown_list until removed. | |
681 | * If it =does= happen to exit before its removed from that list | |
682 | * and its =not= on the global_client_list, it will core here. | |
683 | * short circuit that case now -db | |
684 | */ | |
685 | if(client_p->node.prev == NULL && client_p->node.next == NULL) | |
686 | return; | |
687 | ||
af81d5a0 | 688 | rb_dlinkDelete(&client_p->node, &global_client_list); |
212380e3 | 689 | |
690 | update_client_exit_stats(client_p); | |
691 | } | |
692 | ||
693 | ||
694 | /* | |
695 | * find_person - find person by (nick)name. | |
696 | * inputs - pointer to name | |
697 | * output - return client pointer | |
698 | * side effects - | |
699 | */ | |
700 | struct Client * | |
701 | find_person(const char *name) | |
702 | { | |
703 | struct Client *c2ptr; | |
704 | ||
705 | c2ptr = find_client(name); | |
706 | ||
707 | if(c2ptr && IsPerson(c2ptr)) | |
708 | return (c2ptr); | |
709 | return (NULL); | |
710 | } | |
711 | ||
712 | struct Client * | |
713 | find_named_person(const char *name) | |
714 | { | |
715 | struct Client *c2ptr; | |
716 | ||
717 | c2ptr = find_named_client(name); | |
718 | ||
719 | if(c2ptr && IsPerson(c2ptr)) | |
720 | return (c2ptr); | |
721 | return (NULL); | |
722 | } | |
723 | ||
724 | ||
725 | /* | |
726 | * find_chasing - find the client structure for a nick name (user) | |
727 | * using history mechanism if necessary. If the client is not found, | |
728 | * an error message (NO SUCH NICK) is generated. If the client was found | |
729 | * through the history, chasing will be 1 and otherwise 0. | |
730 | */ | |
731 | struct Client * | |
732 | find_chasing(struct Client *source_p, const char *user, int *chasing) | |
733 | { | |
734 | struct Client *who; | |
735 | ||
736 | if(MyClient(source_p)) | |
737 | who = find_named_person(user); | |
738 | else | |
739 | who = find_person(user); | |
740 | ||
741 | if(chasing) | |
742 | *chasing = 0; | |
743 | ||
744 | if(who || IsDigit(*user)) | |
745 | return who; | |
746 | ||
747 | if(!(who = get_history(user, (long) KILLCHASETIMELIMIT))) | |
748 | { | |
749 | sendto_one_numeric(source_p, ERR_NOSUCHNICK, | |
750 | form_str(ERR_NOSUCHNICK), user); | |
751 | return (NULL); | |
752 | } | |
753 | if(chasing) | |
754 | *chasing = 1; | |
755 | return who; | |
756 | } | |
757 | ||
758 | /* | |
759 | * get_client_name - Return the name of the client | |
760 | * for various tracking and | |
761 | * admin purposes. The main purpose of this function is to | |
762 | * return the "socket host" name of the client, if that | |
763 | * differs from the advertised name (other than case). | |
764 | * But, this can be used to any client structure. | |
765 | * | |
766 | * NOTE 1: | |
767 | * Watch out the allocation of "nbuf", if either source_p->name | |
768 | * or source_p->sockhost gets changed into pointers instead of | |
769 | * directly allocated within the structure... | |
770 | * | |
771 | * NOTE 2: | |
772 | * Function return either a pointer to the structure (source_p) or | |
773 | * to internal buffer (nbuf). *NEVER* use the returned pointer | |
774 | * to modify what it points!!! | |
775 | */ | |
776 | ||
777 | const char * | |
778 | get_client_name(struct Client *client, int showip) | |
779 | { | |
780 | static char nbuf[HOSTLEN * 2 + USERLEN + 5]; | |
781 | ||
782 | s_assert(NULL != client); | |
783 | if(client == NULL) | |
784 | return NULL; | |
785 | ||
786 | if(MyConnect(client)) | |
787 | { | |
788 | if(!irccmp(client->name, client->host)) | |
789 | return client->name; | |
790 | ||
791 | if(ConfigFileEntry.hide_spoof_ips && | |
792 | showip == SHOW_IP && IsIPSpoof(client)) | |
793 | showip = MASK_IP; | |
212380e3 | 794 | if(IsAnyServer(client)) |
795 | showip = MASK_IP; | |
212380e3 | 796 | |
797 | /* And finally, let's get the host information, ip or name */ | |
798 | switch (showip) | |
799 | { | |
800 | case SHOW_IP: | |
38e6acdd | 801 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
212380e3 | 802 | client->name, client->username, |
803 | client->sockhost); | |
804 | break; | |
805 | case MASK_IP: | |
38e6acdd | 806 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
212380e3 | 807 | client->name, client->username); |
808 | break; | |
809 | default: | |
38e6acdd | 810 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
212380e3 | 811 | client->name, client->username, client->host); |
812 | } | |
813 | return nbuf; | |
814 | } | |
815 | ||
816 | /* As pointed out by Adel Mezibra | |
817 | * Neph|l|m@EFnet. Was missing a return here. | |
818 | */ | |
819 | return client->name; | |
820 | } | |
212380e3 | 821 | |
822 | /* log_client_name() | |
823 | * | |
824 | * This version is the same as get_client_name, but doesnt contain the | |
825 | * code that will hide IPs always. This should be used for logfiles. | |
826 | */ | |
827 | const char * | |
828 | log_client_name(struct Client *target_p, int showip) | |
829 | { | |
830 | static char nbuf[HOSTLEN * 2 + USERLEN + 5]; | |
831 | ||
832 | if(target_p == NULL) | |
833 | return NULL; | |
834 | ||
835 | if(MyConnect(target_p)) | |
836 | { | |
837 | if(irccmp(target_p->name, target_p->host) == 0) | |
838 | return target_p->name; | |
839 | ||
840 | switch (showip) | |
841 | { | |
842 | case SHOW_IP: | |
38e6acdd | 843 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", target_p->name, |
212380e3 | 844 | target_p->username, target_p->sockhost); |
845 | break; | |
846 | ||
847 | case MASK_IP: | |
38e6acdd | 848 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
212380e3 | 849 | target_p->name, target_p->username); |
850 | ||
851 | default: | |
38e6acdd | 852 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", target_p->name, |
212380e3 | 853 | target_p->username, target_p->host); |
854 | } | |
855 | ||
856 | return nbuf; | |
857 | } | |
858 | ||
859 | return target_p->name; | |
860 | } | |
861 | ||
862 | /* is_remote_connect - Returns whether a server was /connect'ed by a remote | |
863 | * oper (send notices netwide) */ | |
864 | int | |
865 | is_remote_connect(struct Client *client_p) | |
866 | { | |
867 | struct Client *oper; | |
868 | ||
869 | if (client_p->serv == NULL) | |
870 | return FALSE; | |
871 | oper = find_named_person(client_p->serv->by); | |
872 | return oper != NULL && IsOper(oper) && !MyConnect(oper); | |
873 | } | |
874 | ||
875 | static void | |
876 | free_exited_clients(void *unused) | |
877 | { | |
af81d5a0 | 878 | rb_dlink_node *ptr, *next; |
212380e3 | 879 | struct Client *target_p; |
880 | ||
8e69bb4e | 881 | RB_DLINK_FOREACH_SAFE(ptr, next, dead_list.head) |
212380e3 | 882 | { |
883 | target_p = ptr->data; | |
884 | ||
885 | #ifdef DEBUG_EXITED_CLIENTS | |
886 | { | |
887 | struct abort_client *abt; | |
af81d5a0 | 888 | rb_dlink_node *aptr; |
212380e3 | 889 | int found = 0; |
890 | ||
8e69bb4e | 891 | RB_DLINK_FOREACH(aptr, abort_list.head) |
212380e3 | 892 | { |
893 | abt = aptr->data; | |
894 | if(abt->client == target_p) | |
895 | { | |
896 | s_assert(0); | |
897 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
898 | "On abort_list: %s stat: %u flags: %u/%u handler: %c", | |
899 | target_p->name, (unsigned int) target_p->status, | |
900 | target_p->flags, target_p->flags2, target_p->handler); | |
901 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
f80a1823 | 902 | "Please report this to the charybdis developers!"); |
212380e3 | 903 | found++; |
904 | } | |
905 | } | |
906 | ||
907 | if(found) | |
908 | { | |
af81d5a0 | 909 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 | 910 | continue; |
911 | } | |
912 | } | |
913 | #endif | |
914 | ||
915 | if(ptr->data == NULL) | |
916 | { | |
917 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
918 | "Warning: null client on dead_list!"); | |
af81d5a0 | 919 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 | 920 | continue; |
921 | } | |
922 | release_client_state(target_p); | |
923 | free_client(target_p); | |
af81d5a0 | 924 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 | 925 | } |
926 | ||
927 | #ifdef DEBUG_EXITED_CLIENTS | |
8e69bb4e | 928 | RB_DLINK_FOREACH_SAFE(ptr, next, dead_remote_list.head) |
212380e3 | 929 | { |
930 | target_p = ptr->data; | |
931 | ||
932 | if(ptr->data == NULL) | |
933 | { | |
934 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
935 | "Warning: null client on dead_list!"); | |
af81d5a0 | 936 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 | 937 | continue; |
938 | } | |
939 | release_client_state(target_p); | |
940 | free_client(target_p); | |
af81d5a0 | 941 | rb_dlinkDestroy(ptr, &dead_remote_list); |
212380e3 | 942 | } |
943 | #endif | |
944 | ||
945 | } | |
946 | ||
947 | /* | |
948 | ** Recursively send QUITs and SQUITs for source_p and all its dependent clients | |
949 | ** and servers to those servers that need them. A server needs the client | |
950 | ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it | |
951 | ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once | |
952 | ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending | |
953 | ** on that one -orabidoo | |
954 | */ | |
955 | static void | |
956 | recurse_send_quits(struct Client *client_p, struct Client *source_p, | |
957 | struct Client *to, const char *comment1, | |
958 | const char *comment) | |
959 | { | |
960 | struct Client *target_p; | |
af81d5a0 | 961 | rb_dlink_node *ptr, *ptr_next; |
212380e3 | 962 | /* If this server can handle quit storm (QS) removal |
963 | * of dependents, just send the SQUIT | |
964 | */ | |
965 | ||
966 | if(IsCapable(to, CAP_QS)) | |
967 | { | |
968 | sendto_one(to, "SQUIT %s :%s", | |
969 | get_id(source_p, to), comment); | |
970 | } | |
971 | else | |
972 | { | |
8e69bb4e | 973 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 | 974 | { |
975 | target_p = ptr->data; | |
976 | sendto_one(to, ":%s QUIT :%s", target_p->name, comment1); | |
977 | } | |
8e69bb4e | 978 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->servers.head) |
212380e3 | 979 | { |
980 | target_p = ptr->data; | |
981 | recurse_send_quits(client_p, target_p, to, comment1, comment); | |
982 | } | |
983 | sendto_one(to, "SQUIT %s :%s", source_p->name, comment); | |
984 | } | |
985 | } | |
986 | ||
987 | /* | |
988 | ** Remove all clients that depend on source_p; assumes all (S)QUITs have | |
989 | ** already been sent. we make sure to exit a server's dependent clients | |
990 | ** and servers before the server itself; exit_one_client takes care of | |
991 | ** actually removing things off llists. tweaked from +CSr31 -orabidoo | |
992 | */ | |
993 | /* | |
994 | * added sanity test code.... source_p->serv might be NULL... | |
995 | */ | |
996 | static void | |
997 | recurse_remove_clients(struct Client *source_p, const char *comment) | |
998 | { | |
999 | struct Client *target_p; | |
af81d5a0 | 1000 | rb_dlink_node *ptr, *ptr_next; |
212380e3 | 1001 | |
1002 | if(IsMe(source_p)) | |
1003 | return; | |
1004 | ||
1005 | if(source_p->serv == NULL) /* oooops. uh this is actually a major bug */ | |
1006 | return; | |
1007 | ||
1008 | /* this is very ugly, but it saves cpu :P */ | |
1009 | if(ConfigFileEntry.nick_delay > 0) | |
1010 | { | |
8e69bb4e | 1011 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 | 1012 | { |
1013 | target_p = ptr->data; | |
1014 | target_p->flags |= FLAGS_KILLED; | |
1015 | add_nd_entry(target_p->name); | |
1016 | ||
1017 | if(!IsDead(target_p) && !IsClosing(target_p)) | |
1018 | exit_remote_client(NULL, target_p, &me, comment); | |
1019 | } | |
1020 | } | |
1021 | else | |
1022 | { | |
8e69bb4e | 1023 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 | 1024 | { |
1025 | target_p = ptr->data; | |
1026 | target_p->flags |= FLAGS_KILLED; | |
1027 | ||
1028 | if(!IsDead(target_p) && !IsClosing(target_p)) | |
1029 | exit_remote_client(NULL, target_p, &me, comment); | |
1030 | } | |
1031 | } | |
1032 | ||
8e69bb4e | 1033 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->servers.head) |
212380e3 | 1034 | { |
1035 | target_p = ptr->data; | |
1036 | recurse_remove_clients(target_p, comment); | |
1037 | qs_server(NULL, target_p, &me, comment); | |
1038 | } | |
1039 | } | |
1040 | ||
1041 | /* | |
1042 | ** Remove *everything* that depends on source_p, from all lists, and sending | |
1043 | ** all necessary QUITs and SQUITs. source_p itself is still on the lists, | |
1044 | ** and its SQUITs have been sent except for the upstream one -orabidoo | |
1045 | */ | |
1046 | static void | |
1047 | remove_dependents(struct Client *client_p, | |
1048 | struct Client *source_p, | |
1049 | struct Client *from, const char *comment, const char *comment1) | |
1050 | { | |
1051 | struct Client *to; | |
af81d5a0 | 1052 | rb_dlink_node *ptr, *next; |
212380e3 | 1053 | |
8e69bb4e | 1054 | RB_DLINK_FOREACH_SAFE(ptr, next, serv_list.head) |
212380e3 | 1055 | { |
1056 | to = ptr->data; | |
1057 | ||
1058 | if(IsMe(to) || to == source_p->from || | |
1059 | (to == client_p && IsCapable(to, CAP_QS))) | |
1060 | continue; | |
1061 | ||
1062 | recurse_send_quits(client_p, source_p, to, comment1, comment); | |
1063 | } | |
1064 | ||
1065 | recurse_remove_clients(source_p, comment1); | |
1066 | } | |
1067 | ||
1068 | void | |
1069 | exit_aborted_clients(void *unused) | |
1070 | { | |
1071 | struct abort_client *abt; | |
af81d5a0 | 1072 | rb_dlink_node *ptr, *next; |
8e69bb4e | 1073 | RB_DLINK_FOREACH_SAFE(ptr, next, abort_list.head) |
212380e3 | 1074 | { |
1075 | abt = ptr->data; | |
1076 | ||
1077 | #ifdef DEBUG_EXITED_CLIENTS | |
1078 | { | |
af81d5a0 | 1079 | if(rb_dlinkFind(abt->client, &dead_list)) |
212380e3 | 1080 | { |
1081 | s_assert(0); | |
1082 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1083 | "On dead_list: %s stat: %u flags: %u/%u handler: %c", | |
1084 | abt->client->name, (unsigned int) abt->client->status, | |
1085 | abt->client->flags, abt->client->flags2, abt->client->handler); | |
1086 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
f80a1823 | 1087 | "Please report this to the charybdis developers!"); |
212380e3 | 1088 | continue; |
1089 | } | |
1090 | } | |
1091 | #endif | |
1092 | ||
1093 | s_assert(*((unsigned long*)abt->client) != 0xdeadbeef); /* This is lame but its a debug thing */ | |
af81d5a0 | 1094 | rb_dlinkDelete(ptr, &abort_list); |
212380e3 | 1095 | |
1096 | if(IsAnyServer(abt->client)) | |
1097 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1098 | "Closing link to %s: %s", | |
715b28fe | 1099 | abt->client->name, abt->notice); |
212380e3 | 1100 | |
1101 | /* its no longer on abort list - we *must* remove | |
1102 | * FLAGS_CLOSING otherwise exit_client() will not run --fl | |
1103 | */ | |
1104 | abt->client->flags &= ~FLAGS_CLOSING; | |
1105 | exit_client(abt->client, abt->client, &me, abt->notice); | |
90a3c35b | 1106 | rb_free(abt); |
212380e3 | 1107 | } |
1108 | } | |
1109 | ||
1110 | ||
1111 | /* | |
1112 | * dead_link - Adds client to a list of clients that need an exit_client() | |
1113 | * | |
1114 | */ | |
1115 | void | |
25b1f927 | 1116 | dead_link(struct Client *client_p, int sendqex) |
212380e3 | 1117 | { |
1118 | struct abort_client *abt; | |
1119 | ||
1120 | s_assert(!IsMe(client_p)); | |
1121 | if(IsDead(client_p) || IsClosing(client_p) || IsMe(client_p)) | |
1122 | return; | |
1123 | ||
8e43b0b4 | 1124 | abt = (struct abort_client *) rb_malloc(sizeof(struct abort_client)); |
212380e3 | 1125 | |
25b1f927 | 1126 | if(sendqex) |
907468c4 | 1127 | rb_strlcpy(abt->notice, "Max SendQ exceeded", sizeof(abt->notice)); |
212380e3 | 1128 | else |
38e6acdd | 1129 | rb_snprintf(abt->notice, sizeof(abt->notice), "Write error: %s", strerror(errno)); |
212380e3 | 1130 | |
1131 | abt->client = client_p; | |
1132 | SetIOError(client_p); | |
1133 | SetDead(client_p); | |
1134 | SetClosing(client_p); | |
af81d5a0 | 1135 | rb_dlinkAdd(abt, &abt->node, &abort_list); |
212380e3 | 1136 | } |
1137 | ||
1138 | ||
1139 | /* This does the remove of the user from channels..local or remote */ | |
1140 | static inline void | |
1141 | exit_generic_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1142 | const char *comment) | |
1143 | { | |
90a3c35b | 1144 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 1145 | |
1146 | if(IsOper(source_p)) | |
af81d5a0 | 1147 | rb_dlinkFindDestroy(source_p, &oper_list); |
212380e3 | 1148 | |
937efa52 G |
1149 | /* get rid of any metadata the user may have */ |
1150 | user_metadata_clear(source_p); | |
1151 | ||
212380e3 | 1152 | sendto_common_channels_local(source_p, ":%s!%s@%s QUIT :%s", |
1153 | source_p->name, | |
1154 | source_p->username, source_p->host, comment); | |
1155 | ||
1156 | remove_user_from_channels(source_p); | |
1157 | ||
1158 | /* Should not be in any channels now */ | |
1159 | s_assert(source_p->user->channel.head == NULL); | |
1160 | ||
1161 | /* Clean up invitefield */ | |
90a3c35b | 1162 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, source_p->user->invited.head) |
212380e3 | 1163 | { |
1164 | del_invite(ptr->data, source_p); | |
1165 | } | |
1166 | ||
1167 | /* Clean up allow lists */ | |
1168 | del_all_accepts(source_p); | |
1169 | ||
1170 | add_history(source_p, 0); | |
1171 | off_history(source_p); | |
1172 | ||
1173 | monitor_signoff(source_p); | |
1174 | ||
1175 | if(has_id(source_p)) | |
1176 | del_from_id_hash(source_p->id, source_p); | |
1177 | ||
1178 | del_from_hostname_hash(source_p->orighost, source_p); | |
1179 | del_from_client_hash(source_p->name, source_p); | |
1180 | remove_client_from_list(source_p); | |
1181 | } | |
1182 | ||
1183 | /* | |
1184 | * Assumes IsPerson(source_p) && !MyConnect(source_p) | |
1185 | */ | |
1186 | ||
1187 | static int | |
1188 | exit_remote_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1189 | const char *comment) | |
1190 | { | |
1191 | exit_generic_client(client_p, source_p, from, comment); | |
1192 | ||
1193 | if(source_p->servptr && source_p->servptr->serv) | |
1194 | { | |
af81d5a0 | 1195 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->users); |
212380e3 | 1196 | } |
1197 | ||
1198 | if((source_p->flags & FLAGS_KILLED) == 0) | |
1199 | { | |
1200 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, | |
1201 | ":%s QUIT :%s", use_id(source_p), comment); | |
212380e3 | 1202 | } |
1203 | ||
1204 | SetDead(source_p); | |
1205 | #ifdef DEBUG_EXITED_CLIENTS | |
af81d5a0 | 1206 | rb_dlinkAddAlloc(source_p, &dead_remote_list); |
212380e3 | 1207 | #else |
af81d5a0 | 1208 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1209 | #endif |
1210 | return(CLIENT_EXITED); | |
1211 | } | |
1212 | ||
1213 | /* | |
1214 | * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE | |
1215 | */ | |
1216 | ||
1217 | static int | |
1218 | exit_unknown_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1219 | const char *comment) | |
1220 | { | |
1221 | delete_auth_queries(source_p); | |
cecb5c1e JT |
1222 | if (source_p->localClient->dnsquery) |
1223 | { | |
1224 | delete_resolver_queries(source_p->localClient->dnsquery); | |
1225 | rb_free(source_p->localClient->dnsquery); | |
1226 | } | |
af81d5a0 | 1227 | rb_dlinkDelete(&source_p->localClient->tnode, &unknown_list); |
212380e3 | 1228 | |
1229 | if(!IsIOError(source_p)) | |
dd12a19c | 1230 | sendto_one(source_p, "ERROR :Closing Link: %s (%s)", |
1231 | source_p->user != NULL ? source_p->host : "127.0.0.1", | |
1232 | comment); | |
212380e3 | 1233 | |
1234 | close_connection(source_p); | |
1235 | ||
1236 | if(has_id(source_p)) | |
1237 | del_from_id_hash(source_p->id, source_p); | |
1238 | ||
1239 | del_from_hostname_hash(source_p->host, source_p); | |
1240 | del_from_client_hash(source_p->name, source_p); | |
1241 | remove_client_from_list(source_p); | |
212380e3 | 1242 | SetDead(source_p); |
af81d5a0 | 1243 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1244 | |
1245 | /* Note that we don't need to add unknowns to the dead_list */ | |
1246 | return(CLIENT_EXITED); | |
1247 | } | |
1248 | ||
1249 | static int | |
1250 | exit_remote_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1251 | const char *comment) | |
1252 | { | |
1253 | static char comment1[(HOSTLEN*2)+2]; | |
1254 | static char newcomment[BUFSIZE]; | |
1255 | struct Client *target_p; | |
1256 | ||
1257 | if(ConfigServerHide.flatten_links) | |
1258 | strcpy(comment1, "*.net *.split"); | |
1259 | else | |
1260 | { | |
66c8fdd2 | 1261 | strcpy(comment1, source_p->servptr->name); |
212380e3 | 1262 | strcat(comment1, " "); |
1263 | strcat(comment1, source_p->name); | |
1264 | } | |
1265 | if (IsPerson(from)) | |
38e6acdd | 1266 | rb_snprintf(newcomment, sizeof(newcomment), "by %s: %s", |
212380e3 | 1267 | from->name, comment); |
1268 | ||
1269 | if(source_p->serv != NULL) | |
1270 | remove_dependents(client_p, source_p, from, IsPerson(from) ? newcomment : comment, comment1); | |
1271 | ||
1272 | if(source_p->servptr && source_p->servptr->serv) | |
af81d5a0 | 1273 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 | 1274 | else |
1275 | s_assert(0); | |
1276 | ||
af81d5a0 | 1277 | rb_dlinkFindDestroy(source_p, &global_serv_list); |
212380e3 | 1278 | target_p = source_p->from; |
1279 | ||
1280 | if(target_p != NULL && IsServer(target_p) && target_p != client_p && | |
1281 | !IsMe(target_p) && (source_p->flags & FLAGS_KILLED) == 0) | |
1282 | { | |
1283 | sendto_one(target_p, ":%s SQUIT %s :%s", | |
1284 | get_id(from, target_p), get_id(source_p, target_p), | |
1285 | comment); | |
1286 | } | |
1287 | ||
1288 | if(has_id(source_p)) | |
1289 | del_from_id_hash(source_p->id, source_p); | |
1290 | ||
1291 | del_from_client_hash(source_p->name, source_p); | |
1292 | remove_client_from_list(source_p); | |
994544c2 | 1293 | scache_split(source_p->serv->nameinfo); |
212380e3 | 1294 | |
1295 | SetDead(source_p); | |
1296 | #ifdef DEBUG_EXITED_CLIENTS | |
af81d5a0 | 1297 | rb_dlinkAddAlloc(source_p, &dead_remote_list); |
212380e3 | 1298 | #else |
af81d5a0 | 1299 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1300 | #endif |
1301 | return 0; | |
1302 | } | |
1303 | ||
1304 | static int | |
1305 | qs_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1306 | const char *comment) | |
1307 | { | |
212380e3 | 1308 | if(source_p->servptr && source_p->servptr->serv) |
af81d5a0 | 1309 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 | 1310 | else |
1311 | s_assert(0); | |
1312 | ||
af81d5a0 | 1313 | rb_dlinkFindDestroy(source_p, &global_serv_list); |
212380e3 | 1314 | |
1315 | if(has_id(source_p)) | |
1316 | del_from_id_hash(source_p->id, source_p); | |
1317 | ||
1318 | del_from_client_hash(source_p->name, source_p); | |
1319 | remove_client_from_list(source_p); | |
4f5ec033 | 1320 | scache_split(source_p->serv->nameinfo); |
212380e3 | 1321 | |
1322 | SetDead(source_p); | |
af81d5a0 | 1323 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1324 | return 0; |
1325 | } | |
1326 | ||
1327 | static int | |
1328 | exit_local_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1329 | const char *comment) | |
1330 | { | |
1331 | static char comment1[(HOSTLEN*2)+2]; | |
1332 | static char newcomment[BUFSIZE]; | |
1333 | unsigned int sendk, recvk; | |
1334 | ||
af81d5a0 WP |
1335 | rb_dlinkDelete(&source_p->localClient->tnode, &serv_list); |
1336 | rb_dlinkFindDestroy(source_p, &global_serv_list); | |
212380e3 | 1337 | |
1338 | unset_chcap_usage_counts(source_p); | |
1339 | sendk = source_p->localClient->sendK; | |
1340 | recvk = source_p->localClient->receiveK; | |
1341 | ||
1342 | /* Always show source here, so the server notices show | |
1343 | * which side initiated the split -- jilles | |
1344 | */ | |
38e6acdd | 1345 | rb_snprintf(newcomment, sizeof(newcomment), "by %s: %s", |
212380e3 | 1346 | from == source_p ? me.name : from->name, comment); |
1347 | if (!IsIOError(source_p)) | |
1348 | sendto_one(source_p, "SQUIT %s :%s", use_id(source_p), | |
1349 | newcomment); | |
1350 | if(client_p != NULL && source_p != client_p && !IsIOError(source_p)) | |
1351 | { | |
1352 | sendto_one(source_p, "ERROR :Closing Link: 127.0.0.1 %s (%s)", | |
1353 | source_p->name, comment); | |
1354 | } | |
1355 | ||
212380e3 | 1356 | if(source_p->servptr && source_p->servptr->serv) |
af81d5a0 | 1357 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 | 1358 | else |
1359 | s_assert(0); | |
1360 | ||
1361 | ||
1362 | close_connection(source_p); | |
1363 | ||
1364 | if(ConfigServerHide.flatten_links) | |
1365 | strcpy(comment1, "*.net *.split"); | |
1366 | else | |
1367 | { | |
66c8fdd2 | 1368 | strcpy(comment1, source_p->servptr->name); |
212380e3 | 1369 | strcat(comment1, " "); |
1370 | strcat(comment1, source_p->name); | |
1371 | } | |
1372 | ||
1373 | if(source_p->serv != NULL) | |
1374 | remove_dependents(client_p, source_p, from, IsPerson(from) ? newcomment : comment, comment1); | |
1375 | ||
1376 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s was connected" | |
1377 | " for %ld seconds. %d/%d sendK/recvK.", | |
784fdac0 | 1378 | source_p->name, (long) rb_current_time() - source_p->localClient->firsttime, sendk, recvk); |
212380e3 | 1379 | |
1380 | ilog(L_SERVER, "%s was connected for %ld seconds. %d/%d sendK/recvK.", | |
784fdac0 | 1381 | source_p->name, (long) rb_current_time() - source_p->localClient->firsttime, sendk, recvk); |
212380e3 | 1382 | |
1383 | if(has_id(source_p)) | |
1384 | del_from_id_hash(source_p->id, source_p); | |
1385 | ||
1386 | del_from_client_hash(source_p->name, source_p); | |
1387 | remove_client_from_list(source_p); | |
994544c2 | 1388 | scache_split(source_p->serv->nameinfo); |
212380e3 | 1389 | |
1390 | SetDead(source_p); | |
af81d5a0 | 1391 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1392 | return 0; |
1393 | } | |
1394 | ||
1395 | ||
1396 | /* | |
1397 | * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE | |
1398 | */ | |
1399 | ||
1400 | static int | |
1401 | exit_local_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1402 | const char *comment) | |
1403 | { | |
1404 | unsigned long on_for; | |
08a5f1f9 | 1405 | char tbuf[26]; |
212380e3 | 1406 | |
1407 | exit_generic_client(client_p, source_p, from, comment); | |
1408 | clear_monitor(source_p); | |
1409 | ||
1410 | s_assert(IsPerson(source_p)); | |
af81d5a0 WP |
1411 | rb_dlinkDelete(&source_p->localClient->tnode, &lclient_list); |
1412 | rb_dlinkDelete(&source_p->lnode, &me.serv->users); | |
212380e3 | 1413 | |
1414 | if(IsOper(source_p)) | |
af81d5a0 | 1415 | rb_dlinkFindDestroy(source_p, &local_oper_list); |
212380e3 | 1416 | |
1417 | sendto_realops_snomask(SNO_CCONN, L_ALL, | |
1418 | "Client exiting: %s (%s@%s) [%s] [%s]", | |
1419 | source_p->name, | |
1420 | source_p->username, source_p->host, comment, | |
1421 | show_ip(NULL, source_p) ? source_p->sockhost : "255.255.255.255"); | |
1422 | ||
1423 | sendto_realops_snomask(SNO_CCONNEXT, L_ALL, | |
1424 | "CLIEXIT %s %s %s %s 0 %s", | |
1425 | source_p->name, source_p->username, source_p->host, | |
1426 | show_ip(NULL, source_p) ? source_p->sockhost : "255.255.255.255", | |
1427 | comment); | |
1428 | ||
9f6bbe3c | 1429 | on_for = rb_current_time() - source_p->localClient->firsttime; |
212380e3 | 1430 | |
f8d9b229 | 1431 | ilog(L_USER, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d", |
08a5f1f9 | 1432 | rb_ctime(rb_current_time(), tbuf, sizeof(tbuf)), on_for / 3600, |
212380e3 | 1433 | (on_for % 3600) / 60, on_for % 60, |
1434 | source_p->name, source_p->username, source_p->host, | |
f8d9b229 | 1435 | source_p->sockhost, |
212380e3 | 1436 | source_p->localClient->sendK, source_p->localClient->receiveK); |
1437 | ||
1438 | sendto_one(source_p, "ERROR :Closing Link: %s (%s)", source_p->host, comment); | |
1439 | close_connection(source_p); | |
1440 | ||
1441 | if((source_p->flags & FLAGS_KILLED) == 0) | |
1442 | { | |
1443 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, | |
1444 | ":%s QUIT :%s", use_id(source_p), comment); | |
212380e3 | 1445 | } |
1446 | ||
1447 | SetDead(source_p); | |
af81d5a0 | 1448 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1449 | return(CLIENT_EXITED); |
1450 | } | |
1451 | ||
1452 | ||
1453 | /* | |
1454 | ** exit_client - This is old "m_bye". Name changed, because this is not a | |
1455 | ** protocol function, but a general server utility function. | |
1456 | ** | |
1457 | ** This function exits a client of *any* type (user, server, etc) | |
1458 | ** from this server. Also, this generates all necessary prototol | |
1459 | ** messages that this exit may cause. | |
1460 | ** | |
1461 | ** 1) If the client is a local client, then this implicitly | |
1462 | ** exits all other clients depending on this connection (e.g. | |
1463 | ** remote clients having 'from'-field that points to this. | |
1464 | ** | |
1465 | ** 2) If the client is a remote client, then only this is exited. | |
1466 | ** | |
1467 | ** For convenience, this function returns a suitable value for | |
1468 | ** m_function return value: | |
1469 | ** | |
1470 | ** CLIENT_EXITED if (client_p == source_p) | |
1471 | ** 0 if (client_p != source_p) | |
1472 | */ | |
1473 | int | |
1474 | exit_client(struct Client *client_p, /* The local client originating the | |
1475 | * exit or NULL, if this exit is | |
1476 | * generated by this server for | |
1477 | * internal reasons. | |
1478 | * This will not get any of the | |
1479 | * generated messages. */ | |
1480 | struct Client *source_p, /* Client exiting */ | |
1481 | struct Client *from, /* Client firing off this Exit, | |
1482 | * never NULL! */ | |
1483 | const char *comment /* Reason for the exit */ | |
1484 | ) | |
1485 | { | |
1486 | hook_data_client_exit hdata; | |
1487 | if(IsClosing(source_p)) | |
1488 | return -1; | |
1489 | ||
1490 | /* note, this HAS to be here, when we exit a client we attempt to | |
1491 | * send them data, if this generates a write error we must *not* add | |
1492 | * them to the abort list --fl | |
1493 | */ | |
1494 | SetClosing(source_p); | |
1495 | ||
1496 | hdata.local_link = client_p; | |
1497 | hdata.target = source_p; | |
1498 | hdata.from = from; | |
1499 | hdata.comment = comment; | |
1500 | call_hook(h_client_exit, &hdata); | |
1501 | ||
1502 | if(MyConnect(source_p)) | |
1503 | { | |
1504 | /* Local clients of various types */ | |
1505 | if(IsPerson(source_p)) | |
1506 | return exit_local_client(client_p, source_p, from, comment); | |
1507 | else if(IsServer(source_p)) | |
1508 | return exit_local_server(client_p, source_p, from, comment); | |
1509 | /* IsUnknown || IsConnecting || IsHandShake */ | |
1510 | else if(!IsReject(source_p)) | |
1511 | return exit_unknown_client(client_p, source_p, from, comment); | |
1512 | } | |
1513 | else | |
1514 | { | |
1515 | /* Remotes */ | |
1516 | if(IsPerson(source_p)) | |
1517 | return exit_remote_client(client_p, source_p, from, comment); | |
1518 | else if(IsServer(source_p)) | |
1519 | return exit_remote_server(client_p, source_p, from, comment); | |
1520 | } | |
1521 | ||
1522 | return -1; | |
1523 | } | |
1524 | ||
1525 | /* | |
1526 | * Count up local client memory | |
1527 | */ | |
1528 | ||
1529 | /* XXX one common Client list now */ | |
1530 | void | |
1531 | count_local_client_memory(size_t * count, size_t * local_client_memory_used) | |
1532 | { | |
ae4091d2 JT |
1533 | size_t lusage; |
1534 | rb_bh_usage(lclient_heap, count, NULL, &lusage, NULL); | |
784fdac0 | 1535 | *local_client_memory_used = lusage + (*count * (sizeof(void *) + sizeof(struct Client))); |
212380e3 | 1536 | } |
1537 | ||
1538 | /* | |
1539 | * Count up remote client memory | |
1540 | */ | |
1541 | void | |
1542 | count_remote_client_memory(size_t * count, size_t * remote_client_memory_used) | |
1543 | { | |
ae4091d2 JT |
1544 | size_t lcount, rcount; |
1545 | rb_bh_usage(lclient_heap, &lcount, NULL, NULL, NULL); | |
1546 | rb_bh_usage(client_heap, &rcount, NULL, NULL, NULL); | |
1547 | *count = rcount - lcount; | |
784fdac0 | 1548 | *remote_client_memory_used = *count * (sizeof(void *) + sizeof(struct Client)); |
212380e3 | 1549 | } |
1550 | ||
1551 | ||
1552 | /* | |
1553 | * accept processing, this adds a form of "caller ID" to ircd | |
1554 | * | |
1555 | * If a client puts themselves into "caller ID only" mode, | |
1556 | * only clients that match a client pointer they have put on | |
1557 | * the accept list will be allowed to message them. | |
1558 | * | |
1559 | * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ] | |
1560 | * | |
1561 | * [target.allow_list] -> [ source1 ] -> [source2 ] | |
1562 | * | |
1563 | * i.e. a target will have a link list of source pointers it will allow | |
1564 | * each source client then has a back pointer pointing back | |
1565 | * to the client that has it on its accept list. | |
1566 | * This allows for exit_one_client to remove these now bogus entries | |
1567 | * from any client having an accept on them. | |
1568 | */ | |
1569 | /* | |
1570 | * del_all_accepts | |
1571 | * | |
1572 | * inputs - pointer to exiting client | |
1573 | * output - NONE | |
1574 | * side effects - Walk through given clients allow_list and on_allow_list | |
1575 | * remove all references to this client | |
1576 | */ | |
1577 | void | |
1578 | del_all_accepts(struct Client *client_p) | |
1579 | { | |
af81d5a0 | 1580 | rb_dlink_node *ptr; |
90a3c35b | 1581 | rb_dlink_node *next_ptr; |
212380e3 | 1582 | struct Client *target_p; |
1583 | ||
1584 | if(MyClient(client_p) && client_p->localClient->allow_list.head) | |
1585 | { | |
1586 | /* clear this clients accept list, and remove them from | |
1587 | * everyones on_accept_list | |
1588 | */ | |
90a3c35b | 1589 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->localClient->allow_list.head) |
212380e3 | 1590 | { |
1591 | target_p = ptr->data; | |
af81d5a0 WP |
1592 | rb_dlinkFindDestroy(client_p, &target_p->on_allow_list); |
1593 | rb_dlinkDestroy(ptr, &client_p->localClient->allow_list); | |
212380e3 | 1594 | } |
1595 | } | |
1596 | ||
1597 | /* remove this client from everyones accept list */ | |
90a3c35b | 1598 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->on_allow_list.head) |
212380e3 | 1599 | { |
1600 | target_p = ptr->data; | |
af81d5a0 WP |
1601 | rb_dlinkFindDestroy(client_p, &target_p->localClient->allow_list); |
1602 | rb_dlinkDestroy(ptr, &client_p->on_allow_list); | |
212380e3 | 1603 | } |
1604 | } | |
1605 | ||
1606 | /* | |
1607 | * show_ip() - asks if the true IP shoudl be shown when source is | |
1608 | * askin for info about target | |
1609 | * | |
1610 | * Inputs - source_p who is asking | |
1611 | * - target_p who do we want the info on | |
1612 | * Output - returns 1 if clear IP can be showed, otherwise 0 | |
1613 | * Side Effects - none | |
1614 | */ | |
1615 | ||
1616 | int | |
1617 | show_ip(struct Client *source_p, struct Client *target_p) | |
1618 | { | |
1619 | if(IsAnyServer(target_p)) | |
1620 | { | |
212380e3 | 1621 | return 0; |
1622 | } | |
1623 | else if(IsIPSpoof(target_p)) | |
1624 | { | |
1625 | /* source == NULL indicates message is being sent | |
1626 | * to local opers. | |
1627 | */ | |
1628 | if(!ConfigFileEntry.hide_spoof_ips && | |
1629 | (source_p == NULL || MyOper(source_p))) | |
1630 | return 1; | |
1631 | return 0; | |
1632 | } | |
1633 | else if(IsDynSpoof(target_p) && (source_p != NULL && !IsOper(source_p))) | |
1634 | return 0; | |
1635 | else | |
1636 | return 1; | |
1637 | } | |
1638 | ||
1639 | int | |
1640 | show_ip_conf(struct ConfItem *aconf, struct Client *source_p) | |
1641 | { | |
1642 | if(IsConfDoSpoofIp(aconf)) | |
1643 | { | |
1644 | if(!ConfigFileEntry.hide_spoof_ips && MyOper(source_p)) | |
1645 | return 1; | |
1646 | ||
1647 | return 0; | |
1648 | } | |
1649 | else | |
1650 | return 1; | |
1651 | } | |
1652 | ||
212380e3 | 1653 | /* |
1654 | * make_user | |
1655 | * | |
1656 | * inputs - pointer to client struct | |
1657 | * output - pointer to struct User | |
1658 | * side effects - add's an User information block to a client | |
1659 | * if it was not previously allocated. | |
1660 | */ | |
1661 | struct User * | |
1662 | make_user(struct Client *client_p) | |
1663 | { | |
1664 | struct User *user; | |
fb87421d | 1665 | struct Dictionary *metadata; |
212380e3 | 1666 | |
1667 | user = client_p->user; | |
1668 | if(!user) | |
1669 | { | |
6e9b4415 | 1670 | user = (struct User *) rb_bh_alloc(user_heap); |
212380e3 | 1671 | user->refcnt = 1; |
1672 | client_p->user = user; | |
fb87421d G |
1673 | |
1674 | metadata = irc_dictionary_create(irccmp); | |
1675 | client_p->user->metadata = metadata; | |
212380e3 | 1676 | } |
1677 | return user; | |
1678 | } | |
1679 | ||
1680 | /* | |
1681 | * make_server | |
1682 | * | |
1683 | * inputs - pointer to client struct | |
1684 | * output - pointer to server_t | |
1685 | * side effects - add's an Server information block to a client | |
1686 | * if it was not previously allocated. | |
1687 | */ | |
6d70eae6 | 1688 | struct Server * |
212380e3 | 1689 | make_server(struct Client *client_p) |
1690 | { | |
6d70eae6 | 1691 | struct Server *serv = client_p->serv; |
212380e3 | 1692 | |
1693 | if(!serv) | |
1694 | { | |
6d70eae6 | 1695 | serv = (struct Server *) rb_malloc(sizeof(struct Server)); |
212380e3 | 1696 | client_p->serv = serv; |
1697 | } | |
1698 | return client_p->serv; | |
1699 | } | |
1700 | ||
1701 | /* | |
1702 | * free_user | |
1703 | * | |
1704 | * inputs - pointer to user struct | |
1705 | * - pointer to client struct | |
1706 | * output - none | |
1707 | * side effects - Decrease user reference count by one and release block, | |
1708 | * if count reaches 0 | |
1709 | */ | |
1710 | void | |
1711 | free_user(struct User *user, struct Client *client_p) | |
1712 | { | |
c387fc41 SB |
1713 | free_away(client_p); |
1714 | ||
212380e3 | 1715 | if(--user->refcnt <= 0) |
1716 | { | |
c387fc41 SB |
1717 | if(user->away) |
1718 | rb_free((char *) user->away); | |
fb87421d | 1719 | |
212380e3 | 1720 | /* |
1721 | * sanity check | |
1722 | */ | |
1723 | if(user->refcnt < 0 || user->invited.head || user->channel.head) | |
1724 | { | |
1725 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1726 | "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *", | |
1727 | (unsigned long) client_p, | |
1728 | client_p ? client_p-> | |
1729 | name : "<noname>", | |
1730 | client_p->username, | |
1731 | client_p->host, | |
1732 | (unsigned long) user, | |
1733 | (unsigned long) user->invited.head, | |
1734 | (unsigned long) user->channel.head, | |
af81d5a0 | 1735 | rb_dlink_list_length(&user->channel), |
212380e3 | 1736 | user->refcnt); |
1737 | s_assert(!user->refcnt); | |
1738 | s_assert(!user->invited.head); | |
1739 | s_assert(!user->channel.head); | |
1740 | } | |
1741 | ||
6e9b4415 | 1742 | rb_bh_free(user_heap, user); |
212380e3 | 1743 | } |
1744 | } | |
1745 | ||
e5847c3e | 1746 | void |
c387fc41 | 1747 | allocate_away(struct Client *client_p) |
e5847c3e | 1748 | { |
c387fc41 SB |
1749 | if(client_p->user->away == NULL) |
1750 | client_p->user->away = rb_bh_alloc(away_heap); | |
e5847c3e WP |
1751 | } |
1752 | ||
c387fc41 | 1753 | |
e5847c3e | 1754 | void |
c387fc41 | 1755 | free_away(struct Client *client_p) |
e5847c3e | 1756 | { |
c387fc41 SB |
1757 | if(client_p->user != NULL && client_p->user->away != NULL) { |
1758 | rb_bh_free(away_heap, client_p->user->away); | |
1759 | client_p->user->away = NULL; | |
e5847c3e WP |
1760 | } |
1761 | } | |
1762 | ||
212380e3 | 1763 | void |
1764 | init_uid(void) | |
1765 | { | |
1766 | int i; | |
1767 | ||
1768 | for(i = 0; i < 3; i++) | |
1769 | current_uid[i] = me.id[i]; | |
1770 | ||
1771 | for(i = 3; i < 9; i++) | |
1772 | current_uid[i] = 'A'; | |
1773 | ||
1774 | current_uid[9] = '\0'; | |
1775 | } | |
1776 | ||
1777 | ||
1778 | char * | |
1779 | generate_uid(void) | |
1780 | { | |
1781 | int i; | |
1782 | ||
1783 | for(i = 8; i > 3; i--) | |
1784 | { | |
1785 | if(current_uid[i] == 'Z') | |
1786 | { | |
1787 | current_uid[i] = '0'; | |
1788 | return current_uid; | |
1789 | } | |
1790 | else if(current_uid[i] != '9') | |
1791 | { | |
1792 | current_uid[i]++; | |
1793 | return current_uid; | |
1794 | } | |
1795 | else | |
1796 | current_uid[i] = 'A'; | |
1797 | } | |
1798 | ||
1799 | /* if this next if() triggers, we're fucked. */ | |
1800 | if(current_uid[3] == 'Z') | |
1801 | { | |
1802 | current_uid[i] = 'A'; | |
1803 | s_assert(0); | |
1804 | } | |
1805 | else | |
1806 | current_uid[i]++; | |
1807 | ||
1808 | return current_uid; | |
1809 | } | |
1810 | ||
1811 | /* | |
1812 | * close_connection | |
1813 | * Close the physical connection. This function must make | |
1814 | * MyConnect(client_p) == FALSE, and set client_p->from == NULL. | |
1815 | */ | |
1816 | void | |
1817 | close_connection(struct Client *client_p) | |
1818 | { | |
1819 | s_assert(client_p != NULL); | |
1820 | if(client_p == NULL) | |
1821 | return; | |
1822 | ||
1823 | s_assert(MyConnect(client_p)); | |
1824 | if(!MyConnect(client_p)) | |
1825 | return; | |
1826 | ||
1827 | if(IsServer(client_p)) | |
1828 | { | |
1829 | struct server_conf *server_p; | |
1830 | ||
b717a466 JT |
1831 | ServerStats.is_sv++; |
1832 | ServerStats.is_sbs += client_p->localClient->sendB; | |
1833 | ServerStats.is_sbr += client_p->localClient->receiveB; | |
17d00839 | 1834 | ServerStats.is_sti += (unsigned long long)(rb_current_time() - client_p->localClient->firsttime); |
212380e3 | 1835 | |
1836 | /* | |
1837 | * If the connection has been up for a long amount of time, schedule | |
1838 | * a 'quick' reconnect, else reset the next-connect cycle. | |
1839 | */ | |
1840 | if((server_p = find_server_conf(client_p->name)) != NULL) | |
1841 | { | |
1842 | /* | |
1843 | * Reschedule a faster reconnect, if this was a automatically | |
1844 | * connected configuration entry. (Note that if we have had | |
1845 | * a rehash in between, the status has been changed to | |
1846 | * CONF_ILLEGAL). But only do this if it was a "good" link. | |
1847 | */ | |
1848 | server_p->hold = time(NULL); | |
1849 | server_p->hold += | |
1850 | (server_p->hold - client_p->localClient->lasttime > | |
1851 | HANGONGOODLINK) ? HANGONRETRYDELAY : ConFreq(server_p->class); | |
1852 | } | |
1853 | ||
1854 | } | |
1855 | else if(IsClient(client_p)) | |
1856 | { | |
b717a466 JT |
1857 | ServerStats.is_cl++; |
1858 | ServerStats.is_cbs += client_p->localClient->sendB; | |
1859 | ServerStats.is_cbr += client_p->localClient->receiveB; | |
17d00839 | 1860 | ServerStats.is_cti += (unsigned long long)(rb_current_time() - client_p->localClient->firsttime); |
212380e3 | 1861 | } |
1862 | else | |
83251205 | 1863 | ServerStats.is_ni++; |
21c9d815 | 1864 | |
8db00894 | 1865 | if(client_p->localClient->F != NULL) |
21c9d815 VY |
1866 | { |
1867 | /* attempt to flush any pending dbufs. Evil, but .. -- adrian */ | |
1868 | if(!IsIOError(client_p)) | |
1869 | send_queued(client_p); | |
1870 | ||
8db00894 | 1871 | del_from_cli_fd_hash(client_p); |
21c9d815 VY |
1872 | rb_close(client_p->localClient->F); |
1873 | client_p->localClient->F = NULL; | |
1874 | } | |
1875 | ||
527ec911 JT |
1876 | rb_linebuf_donebuf(&client_p->localClient->buf_sendq); |
1877 | rb_linebuf_donebuf(&client_p->localClient->buf_recvq); | |
212380e3 | 1878 | detach_conf(client_p); |
1879 | ||
1880 | /* XXX shouldnt really be done here. */ | |
1881 | detach_server_conf(client_p); | |
1882 | ||
1883 | client_p->from = NULL; /* ...this should catch them! >:) --msa */ | |
1884 | ClearMyConnect(client_p); | |
1885 | SetIOError(client_p); | |
1886 | } | |
1887 | ||
1888 | ||
1889 | ||
1890 | void | |
1891 | error_exit_client(struct Client *client_p, int error) | |
1892 | { | |
1893 | /* | |
1894 | * ...hmm, with non-blocking sockets we might get | |
1895 | * here from quite valid reasons, although.. why | |
1896 | * would select report "data available" when there | |
1897 | * wasn't... so, this must be an error anyway... --msa | |
1898 | * actually, EOF occurs when read() returns 0 and | |
1899 | * in due course, select() returns that fd as ready | |
1900 | * for reading even though it ends up being an EOF. -avalon | |
1901 | */ | |
1902 | char errmsg[255]; | |
527ec911 | 1903 | int current_error = rb_get_sockerr(client_p->localClient->F); |
212380e3 | 1904 | |
1905 | SetIOError(client_p); | |
1906 | ||
1907 | if(IsServer(client_p) || IsHandshake(client_p)) | |
1908 | { | |
212380e3 | 1909 | if(error == 0) |
1910 | { | |
1911 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) && !IsServer(client_p) ? L_NETWIDE : L_ALL, | |
1912 | "Server %s closed the connection", | |
715b28fe | 1913 | client_p->name); |
212380e3 | 1914 | |
1915 | ilog(L_SERVER, "Server %s closed the connection", | |
1916 | log_client_name(client_p, SHOW_IP)); | |
1917 | } | |
1918 | else | |
1919 | { | |
1920 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) && !IsServer(client_p) ? L_NETWIDE : L_ALL, | |
1921 | "Lost connection to %s: %s", | |
1922 | client_p->name, strerror(current_error)); | |
1923 | ilog(L_SERVER, "Lost connection to %s: %s", | |
1924 | log_client_name(client_p, SHOW_IP), strerror(current_error)); | |
1925 | } | |
212380e3 | 1926 | } |
1927 | ||
1928 | if(error == 0) | |
907468c4 | 1929 | rb_strlcpy(errmsg, "Remote host closed the connection", sizeof(errmsg)); |
212380e3 | 1930 | else |
38e6acdd | 1931 | rb_snprintf(errmsg, sizeof(errmsg), "Read error: %s", strerror(current_error)); |
212380e3 | 1932 | |
1933 | exit_client(client_p, client_p, &me, errmsg); | |
1934 | } | |
fb87421d G |
1935 | |
1936 | /* | |
1937 | * user_metadata_add | |
1938 | * | |
1939 | * inputs - pointer to client struct | |
1940 | * - name of metadata item you wish to add | |
1941 | * - value of metadata item | |
1942 | * - 1 if metadata should be propegated, 0 if not | |
1943 | * output - none | |
1944 | * side effects - metadata is added to the user in question | |
1945 | * - metadata is propegated if propegate is set. | |
1946 | */ | |
1947 | struct Metadata * | |
1948 | user_metadata_add(struct Client *target, const char *name, const char *value, int propegate) | |
1949 | { | |
1950 | struct Metadata *md; | |
1951 | ||
fb87421d G |
1952 | md = rb_malloc(sizeof(struct Metadata)); |
1953 | md->name = rb_strdup(name); | |
1954 | md->value = rb_strdup(value); | |
1955 | ||
1956 | irc_dictionary_add(target->user->metadata, md->name, md); | |
1957 | ||
1958 | if(propegate) | |
1959 | sendto_match_servs(&me, "*", CAP_ENCAP, NOCAPS, "ENCAP * METADATA ADD %s %s :%s", | |
0fbe4a38 | 1960 | target->id, name, value); |
fb87421d G |
1961 | |
1962 | return md; | |
1963 | } | |
1964 | ||
1965 | /* | |
1966 | * user_metadata_delete | |
1967 | * | |
1968 | * inputs - pointer to client struct | |
1969 | * - name of metadata item you wish to delete | |
1970 | * output - none | |
1971 | * side effects - metadata is deleted from the user in question | |
1972 | * - deletion is propegated if propegate is set | |
1973 | */ | |
1974 | void | |
1975 | user_metadata_delete(struct Client *target, const char *name, int propegate) | |
1976 | { | |
1977 | struct Metadata *md = user_metadata_find(target, name); | |
1978 | ||
1979 | if(!md) | |
1980 | return; | |
1981 | ||
1982 | irc_dictionary_delete(target->user->metadata, md->name); | |
1983 | ||
1984 | rb_free(md); | |
1985 | ||
1986 | if(propegate) | |
1987 | sendto_match_servs(&me, "*", CAP_ENCAP, NOCAPS, "ENCAP * METADATA DELETE %s %s", | |
0fbe4a38 | 1988 | target->id, name); |
fb87421d G |
1989 | } |
1990 | ||
1991 | /* | |
1992 | * user_metadata_find | |
1993 | * | |
1994 | * inputs - pointer to client struct | |
1995 | * - name of metadata item you wish to read | |
1996 | * output - the requested metadata, if it exists, elsewise null. | |
1997 | * side effects - | |
1998 | */ | |
1999 | struct Metadata * | |
2000 | user_metadata_find(struct Client *target, const char *name) | |
2001 | { | |
2002 | if(!target->user) | |
2003 | return NULL; | |
2004 | ||
2005 | if(!target->user->metadata) | |
2006 | return NULL; | |
2007 | ||
2008 | return irc_dictionary_retrieve(target->user->metadata, name); | |
2009 | } | |
8bced6dc G |
2010 | /* |
2011 | * user_metadata_clear | |
2012 | * | |
2013 | * inputs - pointer to user struct | |
2014 | * output - none | |
2015 | * side effects - metadata is cleared from the user in question | |
2016 | */ | |
2017 | void | |
2018 | user_metadata_clear(struct Client *target) | |
2019 | { | |
2020 | struct Metadata *md; | |
2021 | struct DictionaryIter iter; | |
2022 | ||
2023 | DICTIONARY_FOREACH(md, &iter, target->user->metadata) | |
2024 | { | |
2025 | user_metadata_delete(target, md->name, 0); | |
2026 | } | |
2027 | } |