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