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Commit | Line | Data |
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212380e3 | 1 | /* |
b37021a4 | 2 | * charybdis: an advanced ircd. |
212380e3 AC |
3 | * client.c: Controls clients. |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
b37021a4 | 8 | * Copyright (C) 2007 William Pitcock |
212380e3 AC |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
23 | * USA | |
24 | * | |
f80a1823 | 25 | * $Id: client.c 3514 2007-06-06 16:25:21Z nenolod $ |
212380e3 AC |
26 | */ |
27 | #include "stdinc.h" | |
28 | #include "config.h" | |
29 | ||
212380e3 AC |
30 | #include "client.h" |
31 | #include "class.h" | |
32 | #include "common.h" | |
212380e3 | 33 | #include "hash.h" |
4562c604 | 34 | #include "match.h" |
212380e3 | 35 | #include "ircd.h" |
212380e3 AC |
36 | #include "numeric.h" |
37 | #include "packet.h" | |
38 | #include "s_auth.h" | |
212380e3 AC |
39 | #include "s_conf.h" |
40 | #include "s_newconf.h" | |
4016731b | 41 | #include "logger.h" |
212380e3 AC |
42 | #include "s_serv.h" |
43 | #include "s_stats.h" | |
44 | #include "send.h" | |
45 | #include "whowas.h" | |
46 | #include "s_user.h" | |
212380e3 | 47 | #include "hash.h" |
212380e3 | 48 | #include "hostmask.h" |
212380e3 AC |
49 | #include "listener.h" |
50 | #include "hook.h" | |
51 | #include "msg.h" | |
52 | #include "monitor.h" | |
53 | #include "blacklist.h" | |
54015b5f | 54 | #include "reject.h" |
994544c2 | 55 | #include "scache.h" |
b37021a4 | 56 | #include "irc_dictionary.h" |
c6d72037 | 57 | #include "sslproc.h" |
212380e3 AC |
58 | |
59 | #define DEBUG_EXITED_CLIENTS | |
60 | ||
330fc5c1 AC |
61 | static void check_pings_list(rb_dlink_list * list); |
62 | static void check_unknowns_list(rb_dlink_list * list); | |
212380e3 AC |
63 | static void free_exited_clients(void *unused); |
64 | static void exit_aborted_clients(void *unused); | |
65 | ||
66 | static int exit_remote_client(struct Client *, struct Client *, struct Client *,const char *); | |
67 | static int exit_remote_server(struct Client *, struct Client *, struct Client *,const char *); | |
68 | static int exit_local_client(struct Client *, struct Client *, struct Client *,const char *); | |
69 | static int exit_unknown_client(struct Client *, struct Client *, struct Client *,const char *); | |
70 | static int exit_local_server(struct Client *, struct Client *, struct Client *,const char *); | |
71 | static int qs_server(struct Client *, struct Client *, struct Client *, const char *comment); | |
72 | ||
73 | static EVH check_pings; | |
74 | ||
5433b83e VY |
75 | static rb_bh *client_heap = NULL; |
76 | static rb_bh *lclient_heap = NULL; | |
b09cbaa3 | 77 | static rb_bh *pclient_heap = NULL; |
5433b83e | 78 | static rb_bh *user_heap = NULL; |
c127b45b | 79 | static rb_bh *away_heap = NULL; |
5433b83e | 80 | static char current_uid[IDLEN]; |
212380e3 | 81 | |
43de0f45 AC |
82 | struct Dictionary *nd_dict = NULL; |
83 | ||
212380e3 AC |
84 | enum |
85 | { | |
86 | D_LINED, | |
aae358c0 | 87 | K_LINED |
212380e3 AC |
88 | }; |
89 | ||
330fc5c1 | 90 | rb_dlink_list dead_list; |
212380e3 | 91 | #ifdef DEBUG_EXITED_CLIENTS |
330fc5c1 | 92 | static rb_dlink_list dead_remote_list; |
212380e3 AC |
93 | #endif |
94 | ||
95 | struct abort_client | |
96 | { | |
330fc5c1 | 97 | rb_dlink_node node; |
212380e3 AC |
98 | struct Client *client; |
99 | char notice[REASONLEN]; | |
100 | }; | |
101 | ||
330fc5c1 | 102 | static rb_dlink_list abort_list; |
212380e3 AC |
103 | |
104 | ||
105 | /* | |
106 | * init_client | |
107 | * | |
108 | * inputs - NONE | |
109 | * output - NONE | |
110 | * side effects - initialize client free memory | |
111 | */ | |
112 | void | |
113 | init_client(void) | |
114 | { | |
115 | /* | |
116 | * start off the check ping event .. -- adrian | |
117 | * Every 30 seconds is plenty -- db | |
118 | */ | |
1087485c | 119 | client_heap = rb_bh_create(sizeof(struct Client), CLIENT_HEAP_SIZE, "client_heap"); |
adc6cc42 VY |
120 | lclient_heap = rb_bh_create(sizeof(struct LocalUser), LCLIENT_HEAP_SIZE, "lclient_heap"); |
121 | pclient_heap = rb_bh_create(sizeof(struct PreClient), PCLIENT_HEAP_SIZE, "pclient_heap"); | |
b09cbaa3 | 122 | user_heap = rb_bh_create(sizeof(struct User), USER_HEAP_SIZE, "user_heap"); |
c127b45b | 123 | away_heap = rb_bh_create(AWAYLEN, AWAY_HEAP_SIZE, "away_heap"); |
adc6cc42 | 124 | |
3b2ebd04 JT |
125 | rb_event_addish("check_pings", check_pings, NULL, 30); |
126 | rb_event_addish("free_exited_clients", &free_exited_clients, NULL, 4); | |
127 | rb_event_addish("exit_aborted_clients", exit_aborted_clients, NULL, 1); | |
5a606a8f | 128 | rb_event_add("flood_recalc", flood_recalc, NULL, 1); |
43de0f45 AC |
129 | |
130 | nd_dict = irc_dictionary_create(irccmp); | |
212380e3 AC |
131 | } |
132 | ||
133 | ||
134 | /* | |
135 | * make_client - create a new Client struct and set it to initial state. | |
136 | * | |
137 | * from == NULL, create local client (a client connected | |
138 | * to a socket). | |
139 | * | |
140 | * from, create remote client (behind a socket | |
141 | * associated with the client defined by | |
142 | * 'from'). ('from' is a local client!!). | |
143 | */ | |
144 | struct Client * | |
145 | make_client(struct Client *from) | |
146 | { | |
147 | struct Client *client_p = NULL; | |
148 | struct LocalUser *localClient; | |
149 | ||
398b6a73 | 150 | client_p = rb_bh_alloc(client_heap); |
212380e3 AC |
151 | |
152 | if(from == NULL) | |
153 | { | |
154 | client_p->from = client_p; /* 'from' of local client is self! */ | |
155 | ||
b09cbaa3 | 156 | localClient = rb_bh_alloc(lclient_heap); |
212380e3 AC |
157 | SetMyConnect(client_p); |
158 | client_p->localClient = localClient; | |
159 | ||
e3354945 | 160 | client_p->localClient->lasttime = client_p->localClient->firsttime = rb_current_time(); |
212380e3 | 161 | |
c5c2f506 | 162 | client_p->localClient->F = NULL; |
212380e3 | 163 | |
b09cbaa3 | 164 | client_p->preClient = rb_bh_alloc(pclient_heap);; |
212380e3 AC |
165 | |
166 | /* as good a place as any... */ | |
330fc5c1 | 167 | rb_dlinkAdd(client_p, &client_p->localClient->tnode, &unknown_list); |
212380e3 AC |
168 | } |
169 | else | |
170 | { /* from is not NULL */ | |
171 | client_p->localClient = NULL; | |
172 | client_p->preClient = NULL; | |
173 | client_p->from = from; /* 'from' of local client is self! */ | |
174 | } | |
175 | ||
176 | SetUnknown(client_p); | |
177 | strcpy(client_p->username, "unknown"); | |
178 | ||
179 | return client_p; | |
180 | } | |
181 | ||
182 | void | |
183 | free_pre_client(struct Client *client_p) | |
184 | { | |
185 | struct Blacklist *blptr; | |
186 | ||
187 | s_assert(NULL != client_p); | |
188 | ||
189 | if(client_p->preClient == NULL) | |
190 | return; | |
191 | ||
192 | blptr = client_p->preClient->dnsbl_listed; | |
193 | if (blptr != NULL) | |
194 | unref_blacklist(blptr); | |
195 | abort_blacklist_queries(client_p); | |
398b6a73 | 196 | rb_bh_free(pclient_heap, client_p->preClient); |
212380e3 AC |
197 | client_p->preClient = NULL; |
198 | } | |
199 | ||
200 | static void | |
201 | free_local_client(struct Client *client_p) | |
202 | { | |
203 | s_assert(NULL != client_p); | |
204 | s_assert(&me != client_p); | |
205 | ||
206 | if(client_p->localClient == NULL) | |
207 | return; | |
208 | ||
209 | /* | |
210 | * clean up extra sockets from P-lines which have been discarded. | |
211 | */ | |
212 | if(client_p->localClient->listener) | |
213 | { | |
214 | s_assert(0 < client_p->localClient->listener->ref_count); | |
215 | if(0 == --client_p->localClient->listener->ref_count | |
216 | && !client_p->localClient->listener->active) | |
217 | free_listener(client_p->localClient->listener); | |
218 | client_p->localClient->listener = 0; | |
219 | } | |
220 | ||
c6d72037 VY |
221 | if(client_p->localClient->F != NULL) |
222 | { | |
223 | del_from_cli_fd_hash(client_p); | |
3b2ebd04 | 224 | rb_close(client_p->localClient->F); |
c6d72037 | 225 | } |
212380e3 AC |
226 | |
227 | if(client_p->localClient->passwd) | |
228 | { | |
229 | memset(client_p->localClient->passwd, 0, | |
230 | strlen(client_p->localClient->passwd)); | |
637c4932 | 231 | rb_free(client_p->localClient->passwd); |
212380e3 AC |
232 | } |
233 | ||
90afc118 | 234 | rb_free(client_p->localClient->auth_user); |
637c4932 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); | |
0e52d0d4 JT |
239 | if (client_p->localClient->privset) |
240 | privilegeset_unref(client_p->localClient->privset); | |
212380e3 | 241 | |
a4165b42 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); | |
c6d72037 | 247 | |
398b6a73 | 248 | rb_bh_free(lclient_heap, client_p->localClient); |
212380e3 AC |
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); | |
8eda114a | 259 | rb_free(client_p->certfp); |
398b6a73 | 260 | rb_bh_free(client_heap, client_p); |
212380e3 AC |
261 | } |
262 | ||
263 | /* | |
264 | * check_pings - go through the local client list and check activity | |
265 | * kill off stuff that should die | |
266 | * | |
267 | * inputs - NOT USED (from event) | |
268 | * output - next time_t when check_pings() should be called again | |
269 | * side effects - | |
270 | * | |
271 | * | |
272 | * A PING can be sent to clients as necessary. | |
273 | * | |
274 | * Client/Server ping outs are handled. | |
275 | */ | |
276 | ||
277 | /* | |
278 | * Addon from adrian. We used to call this after nextping seconds, | |
279 | * however I've changed it to run once a second. This is only for | |
280 | * PING timeouts, not K/etc-line checks (thanks dianora!). Having it | |
281 | * run once a second makes life a lot easier - when a new client connects | |
282 | * and they need a ping in 4 seconds, if nextping was set to 20 seconds | |
283 | * we end up waiting 20 seconds. This is stupid. :-) | |
284 | * I will optimise (hah!) check_pings() once I've finished working on | |
285 | * tidying up other network IO evilnesses. | |
286 | * -- adrian | |
287 | */ | |
288 | ||
289 | static void | |
290 | check_pings(void *notused) | |
291 | { | |
292 | check_pings_list(&lclient_list); | |
293 | check_pings_list(&serv_list); | |
294 | check_unknowns_list(&unknown_list); | |
295 | } | |
296 | ||
297 | /* | |
298 | * Check_pings_list() | |
299 | * | |
300 | * inputs - pointer to list to check | |
301 | * output - NONE | |
302 | * side effects - | |
303 | */ | |
304 | static void | |
330fc5c1 | 305 | check_pings_list(rb_dlink_list * list) |
212380e3 AC |
306 | { |
307 | char scratch[32]; /* way too generous but... */ | |
308 | struct Client *client_p; /* current local client_p being examined */ | |
309 | int ping = 0; /* ping time value from client */ | |
637c4932 | 310 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 311 | |
637c4932 | 312 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 AC |
313 | { |
314 | client_p = ptr->data; | |
315 | ||
212380e3 AC |
316 | if(!MyConnect(client_p) || IsDead(client_p)) |
317 | continue; | |
318 | ||
e2a98043 | 319 | ping = get_client_ping(client_p); |
212380e3 | 320 | |
e3354945 | 321 | if(ping < (rb_current_time() - client_p->localClient->lasttime)) |
212380e3 AC |
322 | { |
323 | /* | |
324 | * If the client/server hasnt talked to us in 2*ping seconds | |
325 | * and it has a ping time, then close its connection. | |
326 | */ | |
e3354945 | 327 | if(((rb_current_time() - client_p->localClient->lasttime) >= (2 * ping) |
212380e3 AC |
328 | && (client_p->flags & FLAGS_PINGSENT))) |
329 | { | |
e2a98043 | 330 | if(IsServer(client_p)) |
212380e3 | 331 | { |
e2a98043 | 332 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
212380e3 | 333 | "No response from %s, closing link", |
b3ebc7ab | 334 | client_p->name); |
212380e3 AC |
335 | ilog(L_SERVER, |
336 | "No response from %s, closing link", | |
337 | log_client_name(client_p, HIDE_IP)); | |
338 | } | |
b2f0da88 | 339 | (void) rb_snprintf(scratch, sizeof(scratch), |
212380e3 | 340 | "Ping timeout: %d seconds", |
e3354945 | 341 | (int) (rb_current_time() - client_p->localClient->lasttime)); |
212380e3 AC |
342 | |
343 | exit_client(client_p, client_p, &me, scratch); | |
344 | continue; | |
345 | } | |
346 | else if((client_p->flags & FLAGS_PINGSENT) == 0) | |
347 | { | |
348 | /* | |
349 | * if we havent PINGed the connection and we havent | |
350 | * heard from it in a while, PING it to make sure | |
351 | * it is still alive. | |
352 | */ | |
353 | client_p->flags |= FLAGS_PINGSENT; | |
354 | /* not nice but does the job */ | |
e3354945 | 355 | client_p->localClient->lasttime = rb_current_time() - ping; |
212380e3 AC |
356 | sendto_one(client_p, "PING :%s", me.name); |
357 | } | |
358 | } | |
359 | /* ping_timeout: */ | |
360 | ||
361 | } | |
362 | } | |
363 | ||
364 | /* | |
365 | * check_unknowns_list | |
366 | * | |
367 | * inputs - pointer to list of unknown clients | |
368 | * output - NONE | |
369 | * side effects - unknown clients get marked for termination after n seconds | |
370 | */ | |
371 | static void | |
330fc5c1 | 372 | check_unknowns_list(rb_dlink_list * list) |
212380e3 | 373 | { |
637c4932 | 374 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 375 | struct Client *client_p; |
35cf4c79 | 376 | int timeout; |
212380e3 | 377 | |
637c4932 | 378 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 AC |
379 | { |
380 | client_p = ptr->data; | |
381 | ||
382 | if(IsDead(client_p) || IsClosing(client_p)) | |
383 | continue; | |
384 | ||
6bb4fb83 JT |
385 | /* still has DNSbls to validate against */ |
386 | if(client_p->preClient != NULL && | |
387 | rb_dlink_list_length(&client_p->preClient->dnsbl_queries) > 0) | |
388 | continue; | |
389 | ||
212380e3 AC |
390 | /* |
391 | * Check UNKNOWN connections - if they have been in this state | |
392 | * for > 30s, close them. | |
393 | */ | |
394 | ||
35cf4c79 | 395 | timeout = IsAnyServer(client_p) ? ConfigFileEntry.connect_timeout : 30; |
e3354945 | 396 | if((rb_current_time() - client_p->localClient->firsttime) > timeout) |
35cf4c79 JT |
397 | { |
398 | if(IsAnyServer(client_p)) | |
399 | { | |
400 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) ? L_NETWIDE : L_ALL, | |
401 | "No response from %s, closing link", | |
b3ebc7ab | 402 | client_p->name); |
35cf4c79 JT |
403 | ilog(L_SERVER, |
404 | "No response from %s, closing link", | |
405 | log_client_name(client_p, HIDE_IP)); | |
406 | } | |
212380e3 | 407 | exit_client(client_p, client_p, &me, "Connection timed out"); |
35cf4c79 | 408 | } |
212380e3 AC |
409 | } |
410 | } | |
411 | ||
412 | static void | |
413 | notify_banned_client(struct Client *client_p, struct ConfItem *aconf, int ban) | |
414 | { | |
415 | static const char conn_closed[] = "Connection closed"; | |
416 | static const char d_lined[] = "D-lined"; | |
417 | static const char k_lined[] = "K-lined"; | |
212380e3 AC |
418 | const char *reason = NULL; |
419 | const char *exit_reason = conn_closed; | |
420 | ||
a12ad044 | 421 | if(ConfigFileEntry.kline_with_reason) |
212380e3 | 422 | { |
a12ad044 | 423 | reason = get_user_ban_reason(aconf); |
b52c2949 | 424 | exit_reason = reason; |
212380e3 AC |
425 | } |
426 | else | |
427 | { | |
405ae5ce | 428 | reason = aconf->status == D_LINED ? d_lined : k_lined; |
212380e3 AC |
429 | } |
430 | ||
431 | if(ban == D_LINED && !IsPerson(client_p)) | |
432 | sendto_one(client_p, "NOTICE DLINE :*** You have been D-lined"); | |
433 | else | |
434 | sendto_one(client_p, form_str(ERR_YOUREBANNEDCREEP), | |
435 | me.name, client_p->name, reason); | |
436 | ||
437 | exit_client(client_p, client_p, &me, | |
438 | EmptyString(ConfigFileEntry.kline_reason) ? exit_reason : | |
439 | ConfigFileEntry.kline_reason); | |
440 | } | |
441 | ||
442 | /* | |
443 | * check_banned_lines | |
444 | * inputs - NONE | |
445 | * output - NONE | |
170703fe | 446 | * side effects - Check all connections for a pending k/dline against the |
212380e3 AC |
447 | * client, exit the client if found. |
448 | */ | |
449 | void | |
450 | check_banned_lines(void) | |
451 | { | |
1bb1f1b0 JT |
452 | check_dlines(); |
453 | check_klines(); | |
454 | check_xlines(); | |
212380e3 AC |
455 | } |
456 | ||
457 | /* check_klines_event() | |
458 | * | |
459 | * inputs - | |
460 | * outputs - | |
461 | * side effects - check_klines() is called, kline_queued unset | |
462 | */ | |
463 | void | |
464 | check_klines_event(void *unused) | |
465 | { | |
466 | kline_queued = 0; | |
467 | check_klines(); | |
468 | } | |
469 | ||
470 | /* check_klines | |
471 | * | |
472 | * inputs - | |
473 | * outputs - | |
474 | * side effects - all clients will be checked for klines | |
475 | */ | |
476 | void | |
477 | check_klines(void) | |
478 | { | |
479 | struct Client *client_p; | |
480 | struct ConfItem *aconf; | |
330fc5c1 | 481 | rb_dlink_node *ptr; |
637c4932 | 482 | rb_dlink_node *next_ptr; |
212380e3 | 483 | |
637c4932 | 484 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 AC |
485 | { |
486 | client_p = ptr->data; | |
487 | ||
488 | if(IsMe(client_p) || !IsPerson(client_p)) | |
489 | continue; | |
490 | ||
491 | if((aconf = find_kline(client_p)) != NULL) | |
492 | { | |
493 | if(IsExemptKline(client_p)) | |
494 | { | |
495 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
408024fa JT |
496 | "KLINE over-ruled for %s, client is kline_exempt [%s@%s]", |
497 | get_client_name(client_p, HIDE_IP), | |
498 | aconf->user, aconf->host); | |
212380e3 AC |
499 | continue; |
500 | } | |
501 | ||
502 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
503 | "KLINE active for %s", | |
504 | get_client_name(client_p, HIDE_IP)); | |
505 | ||
506 | notify_banned_client(client_p, aconf, K_LINED); | |
507 | continue; | |
508 | } | |
509 | } | |
510 | } | |
511 | ||
212380e3 AC |
512 | /* check_dlines() |
513 | * | |
514 | * inputs - | |
515 | * outputs - | |
516 | * side effects - all clients will be checked for dlines | |
517 | */ | |
518 | void | |
519 | check_dlines(void) | |
520 | { | |
521 | struct Client *client_p; | |
522 | struct ConfItem *aconf; | |
330fc5c1 | 523 | rb_dlink_node *ptr; |
637c4932 | 524 | rb_dlink_node *next_ptr; |
212380e3 | 525 | |
637c4932 | 526 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 AC |
527 | { |
528 | client_p = ptr->data; | |
529 | ||
530 | if(IsMe(client_p)) | |
531 | continue; | |
532 | ||
54ac8b60 | 533 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family)) != NULL) |
212380e3 AC |
534 | { |
535 | if(aconf->status & CONF_EXEMPTDLINE) | |
536 | continue; | |
537 | ||
538 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
539 | "DLINE active for %s", | |
540 | get_client_name(client_p, HIDE_IP)); | |
541 | ||
542 | notify_banned_client(client_p, aconf, D_LINED); | |
543 | continue; | |
544 | } | |
545 | } | |
546 | ||
547 | /* dlines need to be checked against unknowns too */ | |
637c4932 | 548 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head) |
212380e3 AC |
549 | { |
550 | client_p = ptr->data; | |
551 | ||
54ac8b60 | 552 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family)) != NULL) |
212380e3 AC |
553 | { |
554 | if(aconf->status & CONF_EXEMPTDLINE) | |
555 | continue; | |
556 | ||
557 | notify_banned_client(client_p, aconf, D_LINED); | |
558 | } | |
559 | } | |
560 | } | |
561 | ||
562 | /* check_xlines | |
563 | * | |
564 | * inputs - | |
565 | * outputs - | |
566 | * side effects - all clients will be checked for xlines | |
567 | */ | |
568 | void | |
569 | check_xlines(void) | |
570 | { | |
571 | struct Client *client_p; | |
572 | struct ConfItem *aconf; | |
330fc5c1 | 573 | rb_dlink_node *ptr; |
637c4932 | 574 | rb_dlink_node *next_ptr; |
212380e3 | 575 | |
637c4932 | 576 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 AC |
577 | { |
578 | client_p = ptr->data; | |
579 | ||
580 | if(IsMe(client_p) || !IsPerson(client_p)) | |
581 | continue; | |
582 | ||
583 | if((aconf = find_xline(client_p->info, 1)) != NULL) | |
584 | { | |
585 | if(IsExemptKline(client_p)) | |
586 | { | |
587 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
408024fa JT |
588 | "XLINE over-ruled for %s, client is kline_exempt [%s]", |
589 | get_client_name(client_p, HIDE_IP), | |
70ea02eb | 590 | aconf->host); |
212380e3 AC |
591 | continue; |
592 | } | |
593 | ||
594 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "XLINE active for %s", | |
595 | get_client_name(client_p, HIDE_IP)); | |
596 | ||
597 | (void) exit_client(client_p, client_p, &me, "Bad user info"); | |
598 | continue; | |
599 | } | |
600 | } | |
601 | } | |
602 | ||
330692a1 KB |
603 | /* resv_nick_fnc |
604 | * | |
605 | * inputs - resv, reason, time | |
606 | * outputs - NONE | |
607 | * side effects - all local clients matching resv will be FNC'd | |
608 | */ | |
609 | void | |
610 | resv_nick_fnc(const char *mask, const char *reason, int temp_time) | |
611 | { | |
612 | struct Client *client_p, *target_p; | |
613 | rb_dlink_node *ptr; | |
614 | rb_dlink_node *next_ptr; | |
615 | char *nick; | |
616 | char note[NICKLEN+10]; | |
617 | ||
618 | if (!ConfigFileEntry.resv_fnc) | |
619 | return; | |
620 | ||
621 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) | |
622 | { | |
623 | client_p = ptr->data; | |
624 | ||
625 | if(IsMe(client_p) || !IsPerson(client_p) || IsExemptResv(client_p)) | |
626 | continue; | |
627 | ||
07d3283f KB |
628 | /* Skip users that already have UID nicks. */ |
629 | if(IsDigit(client_p->name[0])) | |
630 | continue; | |
631 | ||
330692a1 KB |
632 | if(match_esc(mask, client_p->name)) |
633 | { | |
634 | nick = client_p->id; | |
635 | ||
636 | /* Tell opers. */ | |
637 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
638 | "RESV forced nick change for %s!%s@%s to %s; nick matched [%s] (%s)", | |
639 | client_p->name, client_p->username, client_p->host, nick, mask, reason); | |
640 | ||
641 | sendto_realops_snomask(SNO_NCHANGE, L_ALL, | |
642 | "Nick change: From %s to %s [%s@%s]", | |
643 | client_p->name, nick, client_p->username, client_p->host); | |
644 | ||
645 | /* Tell the user. */ | |
646 | if (temp_time > 0) | |
647 | { | |
648 | sendto_one_notice(client_p, | |
649 | ":*** Nick %s is temporarily unavailable on this server.", | |
650 | client_p->name); | |
651 | } | |
652 | else | |
653 | { | |
654 | sendto_one_notice(client_p, | |
655 | ":*** Nick %s is no longer available on this server.", | |
656 | client_p->name); | |
657 | } | |
658 | ||
659 | /* Do all of the nick-changing gymnastics. */ | |
660 | client_p->tsinfo = rb_current_time(); | |
661 | add_history(client_p, 1); | |
662 | ||
07d3283f KB |
663 | monitor_signoff(client_p); |
664 | ||
330692a1 KB |
665 | invalidate_bancache_user(client_p); |
666 | ||
667 | sendto_common_channels_local(client_p, NOCAPS, ":%s!%s@%s NICK :%s", | |
668 | client_p->name, client_p->username, client_p->host, nick); | |
669 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s NICK %s :%ld", | |
670 | use_id(client_p), nick, (long) client_p->tsinfo); | |
671 | ||
672 | del_from_client_hash(client_p->name, client_p); | |
673 | rb_strlcpy(client_p->name, nick, sizeof(client_p->name)); | |
674 | add_to_client_hash(nick, client_p); | |
675 | ||
07d3283f KB |
676 | monitor_signon(client_p); |
677 | ||
330692a1 KB |
678 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->on_allow_list.head) |
679 | { | |
680 | target_p = ptr->data; | |
681 | rb_dlinkFindDestroy(client_p, &target_p->localClient->allow_list); | |
682 | rb_dlinkDestroy(ptr, &client_p->on_allow_list); | |
683 | } | |
684 | ||
685 | rb_snprintf(note, sizeof(note), "Nick: %s", nick); | |
686 | rb_note(client_p->localClient->F, note); | |
687 | } | |
688 | } | |
689 | } | |
690 | ||
212380e3 AC |
691 | /* |
692 | * update_client_exit_stats | |
693 | * | |
694 | * input - pointer to client | |
695 | * output - NONE | |
696 | * side effects - | |
697 | */ | |
698 | static void | |
699 | update_client_exit_stats(struct Client *client_p) | |
700 | { | |
701 | if(IsServer(client_p)) | |
702 | { | |
703 | sendto_realops_snomask(SNO_EXTERNAL, L_ALL, | |
704 | "Server %s split from %s", | |
705 | client_p->name, client_p->servptr->name); | |
706 | if(HasSentEob(client_p)) | |
707 | eob_count--; | |
708 | } | |
709 | else if(IsClient(client_p)) | |
710 | { | |
711 | --Count.total; | |
712 | if(IsOper(client_p)) | |
713 | --Count.oper; | |
714 | if(IsInvisible(client_p)) | |
715 | --Count.invisi; | |
716 | } | |
717 | ||
718 | if(splitchecking && !splitmode) | |
719 | check_splitmode(NULL); | |
720 | } | |
721 | ||
722 | /* | |
723 | * release_client_state | |
724 | * | |
725 | * input - pointer to client to release | |
726 | * output - NONE | |
727 | * side effects - | |
728 | */ | |
729 | static void | |
730 | release_client_state(struct Client *client_p) | |
731 | { | |
732 | if(client_p->user != NULL) | |
733 | { | |
734 | free_user(client_p->user, client_p); /* try this here */ | |
735 | } | |
736 | if(client_p->serv) | |
737 | { | |
738 | if(client_p->serv->user != NULL) | |
739 | free_user(client_p->serv->user, client_p); | |
740 | if(client_p->serv->fullcaps) | |
637c4932 VY |
741 | rb_free(client_p->serv->fullcaps); |
742 | rb_free(client_p->serv); | |
212380e3 AC |
743 | } |
744 | } | |
745 | ||
746 | /* | |
747 | * remove_client_from_list | |
748 | * inputs - point to client to remove | |
749 | * output - NONE | |
750 | * side effects - taken the code from ExitOneClient() for this | |
751 | * and placed it here. - avalon | |
752 | */ | |
753 | static void | |
754 | remove_client_from_list(struct Client *client_p) | |
755 | { | |
756 | s_assert(NULL != client_p); | |
757 | ||
758 | if(client_p == NULL) | |
759 | return; | |
760 | ||
761 | /* A client made with make_client() | |
762 | * is on the unknown_list until removed. | |
763 | * If it =does= happen to exit before its removed from that list | |
764 | * and its =not= on the global_client_list, it will core here. | |
765 | * short circuit that case now -db | |
766 | */ | |
767 | if(client_p->node.prev == NULL && client_p->node.next == NULL) | |
768 | return; | |
769 | ||
330fc5c1 | 770 | rb_dlinkDelete(&client_p->node, &global_client_list); |
212380e3 AC |
771 | |
772 | update_client_exit_stats(client_p); | |
773 | } | |
774 | ||
775 | ||
776 | /* | |
777 | * find_person - find person by (nick)name. | |
778 | * inputs - pointer to name | |
779 | * output - return client pointer | |
780 | * side effects - | |
781 | */ | |
782 | struct Client * | |
783 | find_person(const char *name) | |
784 | { | |
785 | struct Client *c2ptr; | |
786 | ||
787 | c2ptr = find_client(name); | |
788 | ||
789 | if(c2ptr && IsPerson(c2ptr)) | |
790 | return (c2ptr); | |
791 | return (NULL); | |
792 | } | |
793 | ||
794 | struct Client * | |
795 | find_named_person(const char *name) | |
796 | { | |
797 | struct Client *c2ptr; | |
798 | ||
799 | c2ptr = find_named_client(name); | |
800 | ||
801 | if(c2ptr && IsPerson(c2ptr)) | |
802 | return (c2ptr); | |
803 | return (NULL); | |
804 | } | |
805 | ||
806 | ||
807 | /* | |
808 | * find_chasing - find the client structure for a nick name (user) | |
809 | * using history mechanism if necessary. If the client is not found, | |
810 | * an error message (NO SUCH NICK) is generated. If the client was found | |
811 | * through the history, chasing will be 1 and otherwise 0. | |
812 | */ | |
813 | struct Client * | |
814 | find_chasing(struct Client *source_p, const char *user, int *chasing) | |
815 | { | |
816 | struct Client *who; | |
817 | ||
818 | if(MyClient(source_p)) | |
819 | who = find_named_person(user); | |
820 | else | |
821 | who = find_person(user); | |
822 | ||
823 | if(chasing) | |
824 | *chasing = 0; | |
825 | ||
826 | if(who || IsDigit(*user)) | |
827 | return who; | |
828 | ||
829 | if(!(who = get_history(user, (long) KILLCHASETIMELIMIT))) | |
830 | { | |
831 | sendto_one_numeric(source_p, ERR_NOSUCHNICK, | |
832 | form_str(ERR_NOSUCHNICK), user); | |
833 | return (NULL); | |
834 | } | |
835 | if(chasing) | |
836 | *chasing = 1; | |
837 | return who; | |
838 | } | |
839 | ||
840 | /* | |
841 | * get_client_name - Return the name of the client | |
842 | * for various tracking and | |
843 | * admin purposes. The main purpose of this function is to | |
844 | * return the "socket host" name of the client, if that | |
845 | * differs from the advertised name (other than case). | |
846 | * But, this can be used to any client structure. | |
847 | * | |
848 | * NOTE 1: | |
849 | * Watch out the allocation of "nbuf", if either source_p->name | |
850 | * or source_p->sockhost gets changed into pointers instead of | |
851 | * directly allocated within the structure... | |
852 | * | |
853 | * NOTE 2: | |
854 | * Function return either a pointer to the structure (source_p) or | |
855 | * to internal buffer (nbuf). *NEVER* use the returned pointer | |
856 | * to modify what it points!!! | |
857 | */ | |
858 | ||
859 | const char * | |
860 | get_client_name(struct Client *client, int showip) | |
861 | { | |
862 | static char nbuf[HOSTLEN * 2 + USERLEN + 5]; | |
863 | ||
864 | s_assert(NULL != client); | |
865 | if(client == NULL) | |
866 | return NULL; | |
867 | ||
868 | if(MyConnect(client)) | |
869 | { | |
870 | if(!irccmp(client->name, client->host)) | |
871 | return client->name; | |
872 | ||
873 | if(ConfigFileEntry.hide_spoof_ips && | |
874 | showip == SHOW_IP && IsIPSpoof(client)) | |
875 | showip = MASK_IP; | |
212380e3 AC |
876 | if(IsAnyServer(client)) |
877 | showip = MASK_IP; | |
212380e3 AC |
878 | |
879 | /* And finally, let's get the host information, ip or name */ | |
880 | switch (showip) | |
881 | { | |
882 | case SHOW_IP: | |
b2f0da88 | 883 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
212380e3 AC |
884 | client->name, client->username, |
885 | client->sockhost); | |
886 | break; | |
887 | case MASK_IP: | |
b2f0da88 | 888 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
212380e3 AC |
889 | client->name, client->username); |
890 | break; | |
891 | default: | |
b2f0da88 | 892 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
212380e3 AC |
893 | client->name, client->username, client->host); |
894 | } | |
895 | return nbuf; | |
896 | } | |
897 | ||
898 | /* As pointed out by Adel Mezibra | |
899 | * Neph|l|m@EFnet. Was missing a return here. | |
900 | */ | |
901 | return client->name; | |
902 | } | |
212380e3 AC |
903 | |
904 | /* log_client_name() | |
905 | * | |
906 | * This version is the same as get_client_name, but doesnt contain the | |
907 | * code that will hide IPs always. This should be used for logfiles. | |
908 | */ | |
909 | const char * | |
910 | log_client_name(struct Client *target_p, int showip) | |
911 | { | |
912 | static char nbuf[HOSTLEN * 2 + USERLEN + 5]; | |
913 | ||
914 | if(target_p == NULL) | |
915 | return NULL; | |
916 | ||
917 | if(MyConnect(target_p)) | |
918 | { | |
919 | if(irccmp(target_p->name, target_p->host) == 0) | |
920 | return target_p->name; | |
921 | ||
922 | switch (showip) | |
923 | { | |
924 | case SHOW_IP: | |
b2f0da88 | 925 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", target_p->name, |
212380e3 AC |
926 | target_p->username, target_p->sockhost); |
927 | break; | |
928 | ||
929 | case MASK_IP: | |
b2f0da88 | 930 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
212380e3 AC |
931 | target_p->name, target_p->username); |
932 | ||
933 | default: | |
b2f0da88 | 934 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", target_p->name, |
212380e3 AC |
935 | target_p->username, target_p->host); |
936 | } | |
937 | ||
938 | return nbuf; | |
939 | } | |
940 | ||
941 | return target_p->name; | |
942 | } | |
943 | ||
944 | /* is_remote_connect - Returns whether a server was /connect'ed by a remote | |
945 | * oper (send notices netwide) */ | |
946 | int | |
947 | is_remote_connect(struct Client *client_p) | |
948 | { | |
949 | struct Client *oper; | |
950 | ||
951 | if (client_p->serv == NULL) | |
952 | return FALSE; | |
953 | oper = find_named_person(client_p->serv->by); | |
954 | return oper != NULL && IsOper(oper) && !MyConnect(oper); | |
955 | } | |
956 | ||
957 | static void | |
958 | free_exited_clients(void *unused) | |
959 | { | |
330fc5c1 | 960 | rb_dlink_node *ptr, *next; |
212380e3 AC |
961 | struct Client *target_p; |
962 | ||
5cefa1d6 | 963 | RB_DLINK_FOREACH_SAFE(ptr, next, dead_list.head) |
212380e3 AC |
964 | { |
965 | target_p = ptr->data; | |
966 | ||
967 | #ifdef DEBUG_EXITED_CLIENTS | |
968 | { | |
969 | struct abort_client *abt; | |
330fc5c1 | 970 | rb_dlink_node *aptr; |
212380e3 AC |
971 | int found = 0; |
972 | ||
5cefa1d6 | 973 | RB_DLINK_FOREACH(aptr, abort_list.head) |
212380e3 AC |
974 | { |
975 | abt = aptr->data; | |
976 | if(abt->client == target_p) | |
977 | { | |
978 | s_assert(0); | |
979 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
980 | "On abort_list: %s stat: %u flags: %u/%u handler: %c", | |
981 | target_p->name, (unsigned int) target_p->status, | |
982 | target_p->flags, target_p->flags2, target_p->handler); | |
983 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
f80a1823 | 984 | "Please report this to the charybdis developers!"); |
212380e3 AC |
985 | found++; |
986 | } | |
987 | } | |
988 | ||
989 | if(found) | |
990 | { | |
330fc5c1 | 991 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 AC |
992 | continue; |
993 | } | |
994 | } | |
995 | #endif | |
996 | ||
997 | if(ptr->data == NULL) | |
998 | { | |
999 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1000 | "Warning: null client on dead_list!"); | |
330fc5c1 | 1001 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 AC |
1002 | continue; |
1003 | } | |
1004 | release_client_state(target_p); | |
1005 | free_client(target_p); | |
330fc5c1 | 1006 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 AC |
1007 | } |
1008 | ||
1009 | #ifdef DEBUG_EXITED_CLIENTS | |
5cefa1d6 | 1010 | RB_DLINK_FOREACH_SAFE(ptr, next, dead_remote_list.head) |
212380e3 AC |
1011 | { |
1012 | target_p = ptr->data; | |
1013 | ||
1014 | if(ptr->data == NULL) | |
1015 | { | |
1016 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1017 | "Warning: null client on dead_list!"); | |
330fc5c1 | 1018 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 AC |
1019 | continue; |
1020 | } | |
1021 | release_client_state(target_p); | |
1022 | free_client(target_p); | |
330fc5c1 | 1023 | rb_dlinkDestroy(ptr, &dead_remote_list); |
212380e3 AC |
1024 | } |
1025 | #endif | |
1026 | ||
1027 | } | |
1028 | ||
212380e3 AC |
1029 | /* |
1030 | ** Remove all clients that depend on source_p; assumes all (S)QUITs have | |
1031 | ** already been sent. we make sure to exit a server's dependent clients | |
1032 | ** and servers before the server itself; exit_one_client takes care of | |
1033 | ** actually removing things off llists. tweaked from +CSr31 -orabidoo | |
1034 | */ | |
1035 | /* | |
1036 | * added sanity test code.... source_p->serv might be NULL... | |
1037 | */ | |
1038 | static void | |
1039 | recurse_remove_clients(struct Client *source_p, const char *comment) | |
1040 | { | |
1041 | struct Client *target_p; | |
330fc5c1 | 1042 | rb_dlink_node *ptr, *ptr_next; |
212380e3 AC |
1043 | |
1044 | if(IsMe(source_p)) | |
1045 | return; | |
1046 | ||
1047 | if(source_p->serv == NULL) /* oooops. uh this is actually a major bug */ | |
1048 | return; | |
1049 | ||
1050 | /* this is very ugly, but it saves cpu :P */ | |
1051 | if(ConfigFileEntry.nick_delay > 0) | |
1052 | { | |
5cefa1d6 | 1053 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 AC |
1054 | { |
1055 | target_p = ptr->data; | |
1056 | target_p->flags |= FLAGS_KILLED; | |
1057 | add_nd_entry(target_p->name); | |
1058 | ||
1059 | if(!IsDead(target_p) && !IsClosing(target_p)) | |
1060 | exit_remote_client(NULL, target_p, &me, comment); | |
1061 | } | |
1062 | } | |
1063 | else | |
1064 | { | |
5cefa1d6 | 1065 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 AC |
1066 | { |
1067 | target_p = ptr->data; | |
1068 | target_p->flags |= FLAGS_KILLED; | |
1069 | ||
1070 | if(!IsDead(target_p) && !IsClosing(target_p)) | |
1071 | exit_remote_client(NULL, target_p, &me, comment); | |
1072 | } | |
1073 | } | |
1074 | ||
5cefa1d6 | 1075 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->servers.head) |
212380e3 AC |
1076 | { |
1077 | target_p = ptr->data; | |
1078 | recurse_remove_clients(target_p, comment); | |
1079 | qs_server(NULL, target_p, &me, comment); | |
1080 | } | |
1081 | } | |
1082 | ||
1083 | /* | |
1084 | ** Remove *everything* that depends on source_p, from all lists, and sending | |
856df9a3 | 1085 | ** all necessary SQUITs. source_p itself is still on the lists, |
212380e3 AC |
1086 | ** and its SQUITs have been sent except for the upstream one -orabidoo |
1087 | */ | |
1088 | static void | |
1089 | remove_dependents(struct Client *client_p, | |
1090 | struct Client *source_p, | |
1091 | struct Client *from, const char *comment, const char *comment1) | |
1092 | { | |
1093 | struct Client *to; | |
330fc5c1 | 1094 | rb_dlink_node *ptr, *next; |
212380e3 | 1095 | |
5cefa1d6 | 1096 | RB_DLINK_FOREACH_SAFE(ptr, next, serv_list.head) |
212380e3 AC |
1097 | { |
1098 | to = ptr->data; | |
1099 | ||
856df9a3 | 1100 | if(IsMe(to) || to == source_p->from || to == client_p) |
212380e3 AC |
1101 | continue; |
1102 | ||
856df9a3 | 1103 | sendto_one(to, "SQUIT %s :%s", get_id(source_p, to), comment); |
212380e3 AC |
1104 | } |
1105 | ||
1106 | recurse_remove_clients(source_p, comment1); | |
1107 | } | |
1108 | ||
1109 | void | |
1110 | exit_aborted_clients(void *unused) | |
1111 | { | |
1112 | struct abort_client *abt; | |
330fc5c1 | 1113 | rb_dlink_node *ptr, *next; |
5cefa1d6 | 1114 | RB_DLINK_FOREACH_SAFE(ptr, next, abort_list.head) |
212380e3 AC |
1115 | { |
1116 | abt = ptr->data; | |
1117 | ||
1118 | #ifdef DEBUG_EXITED_CLIENTS | |
1119 | { | |
330fc5c1 | 1120 | if(rb_dlinkFind(abt->client, &dead_list)) |
212380e3 AC |
1121 | { |
1122 | s_assert(0); | |
1123 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1124 | "On dead_list: %s stat: %u flags: %u/%u handler: %c", | |
1125 | abt->client->name, (unsigned int) abt->client->status, | |
1126 | abt->client->flags, abt->client->flags2, abt->client->handler); | |
1127 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
f80a1823 | 1128 | "Please report this to the charybdis developers!"); |
212380e3 AC |
1129 | continue; |
1130 | } | |
1131 | } | |
1132 | #endif | |
1133 | ||
1134 | s_assert(*((unsigned long*)abt->client) != 0xdeadbeef); /* This is lame but its a debug thing */ | |
330fc5c1 | 1135 | rb_dlinkDelete(ptr, &abort_list); |
212380e3 AC |
1136 | |
1137 | if(IsAnyServer(abt->client)) | |
1138 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1139 | "Closing link to %s: %s", | |
b3ebc7ab | 1140 | abt->client->name, abt->notice); |
212380e3 AC |
1141 | |
1142 | /* its no longer on abort list - we *must* remove | |
1143 | * FLAGS_CLOSING otherwise exit_client() will not run --fl | |
1144 | */ | |
1145 | abt->client->flags &= ~FLAGS_CLOSING; | |
1146 | exit_client(abt->client, abt->client, &me, abt->notice); | |
637c4932 | 1147 | rb_free(abt); |
212380e3 AC |
1148 | } |
1149 | } | |
1150 | ||
1151 | ||
1152 | /* | |
1153 | * dead_link - Adds client to a list of clients that need an exit_client() | |
1154 | * | |
1155 | */ | |
1156 | void | |
cef7a7bc | 1157 | dead_link(struct Client *client_p, int sendqex) |
212380e3 AC |
1158 | { |
1159 | struct abort_client *abt; | |
1160 | ||
1161 | s_assert(!IsMe(client_p)); | |
1162 | if(IsDead(client_p) || IsClosing(client_p) || IsMe(client_p)) | |
1163 | return; | |
1164 | ||
eddc2ab6 | 1165 | abt = (struct abort_client *) rb_malloc(sizeof(struct abort_client)); |
212380e3 | 1166 | |
cef7a7bc | 1167 | if(sendqex) |
f427c8b0 | 1168 | rb_strlcpy(abt->notice, "Max SendQ exceeded", sizeof(abt->notice)); |
212380e3 | 1169 | else |
b2f0da88 | 1170 | rb_snprintf(abt->notice, sizeof(abt->notice), "Write error: %s", strerror(errno)); |
212380e3 AC |
1171 | |
1172 | abt->client = client_p; | |
1173 | SetIOError(client_p); | |
1174 | SetDead(client_p); | |
1175 | SetClosing(client_p); | |
330fc5c1 | 1176 | rb_dlinkAdd(abt, &abt->node, &abort_list); |
212380e3 AC |
1177 | } |
1178 | ||
1179 | ||
1180 | /* This does the remove of the user from channels..local or remote */ | |
1181 | static inline void | |
1182 | exit_generic_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1183 | const char *comment) | |
1184 | { | |
637c4932 | 1185 | rb_dlink_node *ptr, *next_ptr; |
212380e3 AC |
1186 | |
1187 | if(IsOper(source_p)) | |
330fc5c1 | 1188 | rb_dlinkFindDestroy(source_p, &oper_list); |
212380e3 | 1189 | |
7a948bda | 1190 | sendto_common_channels_local(source_p, NOCAPS, ":%s!%s@%s QUIT :%s", |
212380e3 AC |
1191 | source_p->name, |
1192 | source_p->username, source_p->host, comment); | |
1193 | ||
1194 | remove_user_from_channels(source_p); | |
1195 | ||
1196 | /* Should not be in any channels now */ | |
1197 | s_assert(source_p->user->channel.head == NULL); | |
1198 | ||
1199 | /* Clean up invitefield */ | |
637c4932 | 1200 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, source_p->user->invited.head) |
212380e3 AC |
1201 | { |
1202 | del_invite(ptr->data, source_p); | |
1203 | } | |
1204 | ||
1205 | /* Clean up allow lists */ | |
1206 | del_all_accepts(source_p); | |
1207 | ||
1208 | add_history(source_p, 0); | |
1209 | off_history(source_p); | |
1210 | ||
1211 | monitor_signoff(source_p); | |
1212 | ||
1213 | if(has_id(source_p)) | |
1214 | del_from_id_hash(source_p->id, source_p); | |
1215 | ||
1216 | del_from_hostname_hash(source_p->orighost, source_p); | |
1217 | del_from_client_hash(source_p->name, source_p); | |
1218 | remove_client_from_list(source_p); | |
1219 | } | |
1220 | ||
1221 | /* | |
1222 | * Assumes IsPerson(source_p) && !MyConnect(source_p) | |
1223 | */ | |
1224 | ||
1225 | static int | |
1226 | exit_remote_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1227 | const char *comment) | |
1228 | { | |
1229 | exit_generic_client(client_p, source_p, from, comment); | |
1230 | ||
1231 | if(source_p->servptr && source_p->servptr->serv) | |
1232 | { | |
330fc5c1 | 1233 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->users); |
212380e3 AC |
1234 | } |
1235 | ||
1236 | if((source_p->flags & FLAGS_KILLED) == 0) | |
1237 | { | |
1238 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, | |
1239 | ":%s QUIT :%s", use_id(source_p), comment); | |
212380e3 AC |
1240 | } |
1241 | ||
1242 | SetDead(source_p); | |
1243 | #ifdef DEBUG_EXITED_CLIENTS | |
330fc5c1 | 1244 | rb_dlinkAddAlloc(source_p, &dead_remote_list); |
212380e3 | 1245 | #else |
330fc5c1 | 1246 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1247 | #endif |
1248 | return(CLIENT_EXITED); | |
1249 | } | |
1250 | ||
1251 | /* | |
1252 | * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE | |
1253 | */ | |
1254 | ||
1255 | static int | |
1256 | exit_unknown_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1257 | const char *comment) | |
1258 | { | |
1259 | delete_auth_queries(source_p); | |
abe5dd20 JT |
1260 | if (source_p->localClient->dnsquery) |
1261 | { | |
1262 | delete_resolver_queries(source_p->localClient->dnsquery); | |
1263 | rb_free(source_p->localClient->dnsquery); | |
1264 | } | |
330fc5c1 | 1265 | rb_dlinkDelete(&source_p->localClient->tnode, &unknown_list); |
212380e3 AC |
1266 | |
1267 | if(!IsIOError(source_p)) | |
dd12a19c JT |
1268 | sendto_one(source_p, "ERROR :Closing Link: %s (%s)", |
1269 | source_p->user != NULL ? source_p->host : "127.0.0.1", | |
1270 | comment); | |
212380e3 AC |
1271 | |
1272 | close_connection(source_p); | |
1273 | ||
1274 | if(has_id(source_p)) | |
1275 | del_from_id_hash(source_p->id, source_p); | |
1276 | ||
1277 | del_from_hostname_hash(source_p->host, source_p); | |
1278 | del_from_client_hash(source_p->name, source_p); | |
1279 | remove_client_from_list(source_p); | |
212380e3 | 1280 | SetDead(source_p); |
330fc5c1 | 1281 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1282 | |
1283 | /* Note that we don't need to add unknowns to the dead_list */ | |
1284 | return(CLIENT_EXITED); | |
1285 | } | |
1286 | ||
1287 | static int | |
1288 | exit_remote_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1289 | const char *comment) | |
1290 | { | |
1291 | static char comment1[(HOSTLEN*2)+2]; | |
1292 | static char newcomment[BUFSIZE]; | |
1293 | struct Client *target_p; | |
1294 | ||
1295 | if(ConfigServerHide.flatten_links) | |
1296 | strcpy(comment1, "*.net *.split"); | |
1297 | else | |
1298 | { | |
66c8fdd2 | 1299 | strcpy(comment1, source_p->servptr->name); |
212380e3 AC |
1300 | strcat(comment1, " "); |
1301 | strcat(comment1, source_p->name); | |
1302 | } | |
1303 | if (IsPerson(from)) | |
b2f0da88 | 1304 | rb_snprintf(newcomment, sizeof(newcomment), "by %s: %s", |
212380e3 AC |
1305 | from->name, comment); |
1306 | ||
1307 | if(source_p->serv != NULL) | |
1308 | remove_dependents(client_p, source_p, from, IsPerson(from) ? newcomment : comment, comment1); | |
1309 | ||
1310 | if(source_p->servptr && source_p->servptr->serv) | |
330fc5c1 | 1311 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 AC |
1312 | else |
1313 | s_assert(0); | |
1314 | ||
330fc5c1 | 1315 | rb_dlinkFindDestroy(source_p, &global_serv_list); |
212380e3 AC |
1316 | target_p = source_p->from; |
1317 | ||
1318 | if(target_p != NULL && IsServer(target_p) && target_p != client_p && | |
1319 | !IsMe(target_p) && (source_p->flags & FLAGS_KILLED) == 0) | |
1320 | { | |
1321 | sendto_one(target_p, ":%s SQUIT %s :%s", | |
1322 | get_id(from, target_p), get_id(source_p, target_p), | |
1323 | comment); | |
1324 | } | |
1325 | ||
1326 | if(has_id(source_p)) | |
1327 | del_from_id_hash(source_p->id, source_p); | |
1328 | ||
1329 | del_from_client_hash(source_p->name, source_p); | |
1330 | remove_client_from_list(source_p); | |
994544c2 | 1331 | scache_split(source_p->serv->nameinfo); |
212380e3 AC |
1332 | |
1333 | SetDead(source_p); | |
1334 | #ifdef DEBUG_EXITED_CLIENTS | |
330fc5c1 | 1335 | rb_dlinkAddAlloc(source_p, &dead_remote_list); |
212380e3 | 1336 | #else |
330fc5c1 | 1337 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1338 | #endif |
1339 | return 0; | |
1340 | } | |
1341 | ||
1342 | static int | |
1343 | qs_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1344 | const char *comment) | |
1345 | { | |
212380e3 | 1346 | if(source_p->servptr && source_p->servptr->serv) |
330fc5c1 | 1347 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 AC |
1348 | else |
1349 | s_assert(0); | |
1350 | ||
330fc5c1 | 1351 | rb_dlinkFindDestroy(source_p, &global_serv_list); |
212380e3 AC |
1352 | |
1353 | if(has_id(source_p)) | |
1354 | del_from_id_hash(source_p->id, source_p); | |
1355 | ||
1356 | del_from_client_hash(source_p->name, source_p); | |
1357 | remove_client_from_list(source_p); | |
19807b5b | 1358 | scache_split(source_p->serv->nameinfo); |
212380e3 AC |
1359 | |
1360 | SetDead(source_p); | |
330fc5c1 | 1361 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1362 | return 0; |
1363 | } | |
1364 | ||
1365 | static int | |
1366 | exit_local_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1367 | const char *comment) | |
1368 | { | |
1369 | static char comment1[(HOSTLEN*2)+2]; | |
1370 | static char newcomment[BUFSIZE]; | |
1371 | unsigned int sendk, recvk; | |
1372 | ||
330fc5c1 AC |
1373 | rb_dlinkDelete(&source_p->localClient->tnode, &serv_list); |
1374 | rb_dlinkFindDestroy(source_p, &global_serv_list); | |
212380e3 | 1375 | |
212380e3 AC |
1376 | sendk = source_p->localClient->sendK; |
1377 | recvk = source_p->localClient->receiveK; | |
1378 | ||
1379 | /* Always show source here, so the server notices show | |
1380 | * which side initiated the split -- jilles | |
1381 | */ | |
b2f0da88 | 1382 | rb_snprintf(newcomment, sizeof(newcomment), "by %s: %s", |
212380e3 AC |
1383 | from == source_p ? me.name : from->name, comment); |
1384 | if (!IsIOError(source_p)) | |
1385 | sendto_one(source_p, "SQUIT %s :%s", use_id(source_p), | |
1386 | newcomment); | |
1387 | if(client_p != NULL && source_p != client_p && !IsIOError(source_p)) | |
1388 | { | |
1389 | sendto_one(source_p, "ERROR :Closing Link: 127.0.0.1 %s (%s)", | |
1390 | source_p->name, comment); | |
1391 | } | |
1392 | ||
212380e3 | 1393 | if(source_p->servptr && source_p->servptr->serv) |
330fc5c1 | 1394 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 AC |
1395 | else |
1396 | s_assert(0); | |
1397 | ||
1398 | ||
1399 | close_connection(source_p); | |
1400 | ||
1401 | if(ConfigServerHide.flatten_links) | |
1402 | strcpy(comment1, "*.net *.split"); | |
1403 | else | |
1404 | { | |
66c8fdd2 | 1405 | strcpy(comment1, source_p->servptr->name); |
212380e3 AC |
1406 | strcat(comment1, " "); |
1407 | strcat(comment1, source_p->name); | |
1408 | } | |
1409 | ||
1410 | if(source_p->serv != NULL) | |
1411 | remove_dependents(client_p, source_p, from, IsPerson(from) ? newcomment : comment, comment1); | |
1412 | ||
1413 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s was connected" | |
1414 | " for %ld seconds. %d/%d sendK/recvK.", | |
adc6cc42 | 1415 | source_p->name, (long) rb_current_time() - source_p->localClient->firsttime, sendk, recvk); |
212380e3 AC |
1416 | |
1417 | ilog(L_SERVER, "%s was connected for %ld seconds. %d/%d sendK/recvK.", | |
adc6cc42 | 1418 | source_p->name, (long) rb_current_time() - source_p->localClient->firsttime, sendk, recvk); |
212380e3 AC |
1419 | |
1420 | if(has_id(source_p)) | |
1421 | del_from_id_hash(source_p->id, source_p); | |
1422 | ||
1423 | del_from_client_hash(source_p->name, source_p); | |
1424 | remove_client_from_list(source_p); | |
994544c2 | 1425 | scache_split(source_p->serv->nameinfo); |
212380e3 AC |
1426 | |
1427 | SetDead(source_p); | |
330fc5c1 | 1428 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1429 | return 0; |
1430 | } | |
1431 | ||
1432 | ||
1433 | /* | |
1434 | * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE | |
1435 | */ | |
1436 | ||
1437 | static int | |
1438 | exit_local_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1439 | const char *comment) | |
1440 | { | |
1441 | unsigned long on_for; | |
08d75d97 | 1442 | char tbuf[26]; |
212380e3 AC |
1443 | |
1444 | exit_generic_client(client_p, source_p, from, comment); | |
1445 | clear_monitor(source_p); | |
1446 | ||
1447 | s_assert(IsPerson(source_p)); | |
330fc5c1 AC |
1448 | rb_dlinkDelete(&source_p->localClient->tnode, &lclient_list); |
1449 | rb_dlinkDelete(&source_p->lnode, &me.serv->users); | |
212380e3 AC |
1450 | |
1451 | if(IsOper(source_p)) | |
330fc5c1 | 1452 | rb_dlinkFindDestroy(source_p, &local_oper_list); |
212380e3 AC |
1453 | |
1454 | sendto_realops_snomask(SNO_CCONN, L_ALL, | |
1455 | "Client exiting: %s (%s@%s) [%s] [%s]", | |
1456 | source_p->name, | |
1457 | source_p->username, source_p->host, comment, | |
1458 | show_ip(NULL, source_p) ? source_p->sockhost : "255.255.255.255"); | |
1459 | ||
1460 | sendto_realops_snomask(SNO_CCONNEXT, L_ALL, | |
1461 | "CLIEXIT %s %s %s %s 0 %s", | |
1462 | source_p->name, source_p->username, source_p->host, | |
1463 | show_ip(NULL, source_p) ? source_p->sockhost : "255.255.255.255", | |
1464 | comment); | |
1465 | ||
e3354945 | 1466 | on_for = rb_current_time() - source_p->localClient->firsttime; |
212380e3 | 1467 | |
9641f156 | 1468 | ilog(L_USER, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d", |
08d75d97 | 1469 | rb_ctime(rb_current_time(), tbuf, sizeof(tbuf)), on_for / 3600, |
212380e3 AC |
1470 | (on_for % 3600) / 60, on_for % 60, |
1471 | source_p->name, source_p->username, source_p->host, | |
9641f156 | 1472 | source_p->sockhost, |
212380e3 AC |
1473 | source_p->localClient->sendK, source_p->localClient->receiveK); |
1474 | ||
1475 | sendto_one(source_p, "ERROR :Closing Link: %s (%s)", source_p->host, comment); | |
1476 | close_connection(source_p); | |
1477 | ||
1478 | if((source_p->flags & FLAGS_KILLED) == 0) | |
1479 | { | |
1480 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, | |
1481 | ":%s QUIT :%s", use_id(source_p), comment); | |
212380e3 AC |
1482 | } |
1483 | ||
1484 | SetDead(source_p); | |
330fc5c1 | 1485 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 AC |
1486 | return(CLIENT_EXITED); |
1487 | } | |
1488 | ||
1489 | ||
1490 | /* | |
1491 | ** exit_client - This is old "m_bye". Name changed, because this is not a | |
1492 | ** protocol function, but a general server utility function. | |
1493 | ** | |
1494 | ** This function exits a client of *any* type (user, server, etc) | |
1495 | ** from this server. Also, this generates all necessary prototol | |
1496 | ** messages that this exit may cause. | |
1497 | ** | |
1498 | ** 1) If the client is a local client, then this implicitly | |
1499 | ** exits all other clients depending on this connection (e.g. | |
1500 | ** remote clients having 'from'-field that points to this. | |
1501 | ** | |
1502 | ** 2) If the client is a remote client, then only this is exited. | |
1503 | ** | |
1504 | ** For convenience, this function returns a suitable value for | |
1505 | ** m_function return value: | |
1506 | ** | |
1507 | ** CLIENT_EXITED if (client_p == source_p) | |
1508 | ** 0 if (client_p != source_p) | |
1509 | */ | |
1510 | int | |
1511 | exit_client(struct Client *client_p, /* The local client originating the | |
1512 | * exit or NULL, if this exit is | |
1513 | * generated by this server for | |
1514 | * internal reasons. | |
1515 | * This will not get any of the | |
1516 | * generated messages. */ | |
1517 | struct Client *source_p, /* Client exiting */ | |
1518 | struct Client *from, /* Client firing off this Exit, | |
1519 | * never NULL! */ | |
1520 | const char *comment /* Reason for the exit */ | |
1521 | ) | |
1522 | { | |
1523 | hook_data_client_exit hdata; | |
1524 | if(IsClosing(source_p)) | |
1525 | return -1; | |
1526 | ||
1527 | /* note, this HAS to be here, when we exit a client we attempt to | |
1528 | * send them data, if this generates a write error we must *not* add | |
1529 | * them to the abort list --fl | |
1530 | */ | |
1531 | SetClosing(source_p); | |
1532 | ||
1533 | hdata.local_link = client_p; | |
1534 | hdata.target = source_p; | |
1535 | hdata.from = from; | |
1536 | hdata.comment = comment; | |
1537 | call_hook(h_client_exit, &hdata); | |
1538 | ||
1539 | if(MyConnect(source_p)) | |
1540 | { | |
1541 | /* Local clients of various types */ | |
1542 | if(IsPerson(source_p)) | |
1543 | return exit_local_client(client_p, source_p, from, comment); | |
1544 | else if(IsServer(source_p)) | |
1545 | return exit_local_server(client_p, source_p, from, comment); | |
1546 | /* IsUnknown || IsConnecting || IsHandShake */ | |
1547 | else if(!IsReject(source_p)) | |
1548 | return exit_unknown_client(client_p, source_p, from, comment); | |
1549 | } | |
1550 | else | |
1551 | { | |
1552 | /* Remotes */ | |
1553 | if(IsPerson(source_p)) | |
1554 | return exit_remote_client(client_p, source_p, from, comment); | |
1555 | else if(IsServer(source_p)) | |
1556 | return exit_remote_server(client_p, source_p, from, comment); | |
1557 | } | |
1558 | ||
1559 | return -1; | |
1560 | } | |
1561 | ||
1562 | /* | |
1563 | * Count up local client memory | |
1564 | */ | |
1565 | ||
1566 | /* XXX one common Client list now */ | |
1567 | void | |
1568 | count_local_client_memory(size_t * count, size_t * local_client_memory_used) | |
1569 | { | |
1087485c JT |
1570 | size_t lusage; |
1571 | rb_bh_usage(lclient_heap, count, NULL, &lusage, NULL); | |
adc6cc42 | 1572 | *local_client_memory_used = lusage + (*count * (sizeof(void *) + sizeof(struct Client))); |
212380e3 AC |
1573 | } |
1574 | ||
1575 | /* | |
1576 | * Count up remote client memory | |
1577 | */ | |
1578 | void | |
1579 | count_remote_client_memory(size_t * count, size_t * remote_client_memory_used) | |
1580 | { | |
1087485c JT |
1581 | size_t lcount, rcount; |
1582 | rb_bh_usage(lclient_heap, &lcount, NULL, NULL, NULL); | |
1583 | rb_bh_usage(client_heap, &rcount, NULL, NULL, NULL); | |
1584 | *count = rcount - lcount; | |
adc6cc42 | 1585 | *remote_client_memory_used = *count * (sizeof(void *) + sizeof(struct Client)); |
212380e3 AC |
1586 | } |
1587 | ||
1588 | ||
1589 | /* | |
1590 | * accept processing, this adds a form of "caller ID" to ircd | |
1591 | * | |
1592 | * If a client puts themselves into "caller ID only" mode, | |
1593 | * only clients that match a client pointer they have put on | |
1594 | * the accept list will be allowed to message them. | |
1595 | * | |
1596 | * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ] | |
1597 | * | |
1598 | * [target.allow_list] -> [ source1 ] -> [source2 ] | |
1599 | * | |
1600 | * i.e. a target will have a link list of source pointers it will allow | |
1601 | * each source client then has a back pointer pointing back | |
1602 | * to the client that has it on its accept list. | |
1603 | * This allows for exit_one_client to remove these now bogus entries | |
1604 | * from any client having an accept on them. | |
1605 | */ | |
1606 | /* | |
1607 | * del_all_accepts | |
1608 | * | |
1609 | * inputs - pointer to exiting client | |
1610 | * output - NONE | |
1611 | * side effects - Walk through given clients allow_list and on_allow_list | |
1612 | * remove all references to this client | |
1613 | */ | |
1614 | void | |
1615 | del_all_accepts(struct Client *client_p) | |
1616 | { | |
330fc5c1 | 1617 | rb_dlink_node *ptr; |
637c4932 | 1618 | rb_dlink_node *next_ptr; |
212380e3 AC |
1619 | struct Client *target_p; |
1620 | ||
1621 | if(MyClient(client_p) && client_p->localClient->allow_list.head) | |
1622 | { | |
1623 | /* clear this clients accept list, and remove them from | |
1624 | * everyones on_accept_list | |
1625 | */ | |
637c4932 | 1626 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->localClient->allow_list.head) |
212380e3 AC |
1627 | { |
1628 | target_p = ptr->data; | |
330fc5c1 AC |
1629 | rb_dlinkFindDestroy(client_p, &target_p->on_allow_list); |
1630 | rb_dlinkDestroy(ptr, &client_p->localClient->allow_list); | |
212380e3 AC |
1631 | } |
1632 | } | |
1633 | ||
1634 | /* remove this client from everyones accept list */ | |
637c4932 | 1635 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->on_allow_list.head) |
212380e3 AC |
1636 | { |
1637 | target_p = ptr->data; | |
330fc5c1 AC |
1638 | rb_dlinkFindDestroy(client_p, &target_p->localClient->allow_list); |
1639 | rb_dlinkDestroy(ptr, &client_p->on_allow_list); | |
212380e3 AC |
1640 | } |
1641 | } | |
1642 | ||
1643 | /* | |
521f9d63 KB |
1644 | * show_ip() - asks if the true IP should be shown when source is |
1645 | * asking for info about target | |
212380e3 AC |
1646 | * |
1647 | * Inputs - source_p who is asking | |
1648 | * - target_p who do we want the info on | |
521f9d63 | 1649 | * Output - returns 1 if clear IP can be shown, otherwise 0 |
212380e3 AC |
1650 | * Side Effects - none |
1651 | */ | |
1652 | ||
1653 | int | |
1654 | show_ip(struct Client *source_p, struct Client *target_p) | |
1655 | { | |
1656 | if(IsAnyServer(target_p)) | |
1657 | { | |
212380e3 AC |
1658 | return 0; |
1659 | } | |
1660 | else if(IsIPSpoof(target_p)) | |
1661 | { | |
1662 | /* source == NULL indicates message is being sent | |
1663 | * to local opers. | |
1664 | */ | |
1665 | if(!ConfigFileEntry.hide_spoof_ips && | |
1666 | (source_p == NULL || MyOper(source_p))) | |
1667 | return 1; | |
1668 | return 0; | |
1669 | } | |
1670 | else if(IsDynSpoof(target_p) && (source_p != NULL && !IsOper(source_p))) | |
1671 | return 0; | |
1672 | else | |
1673 | return 1; | |
1674 | } | |
1675 | ||
1676 | int | |
1677 | show_ip_conf(struct ConfItem *aconf, struct Client *source_p) | |
1678 | { | |
1679 | if(IsConfDoSpoofIp(aconf)) | |
1680 | { | |
1681 | if(!ConfigFileEntry.hide_spoof_ips && MyOper(source_p)) | |
1682 | return 1; | |
1683 | ||
1684 | return 0; | |
1685 | } | |
1686 | else | |
1687 | return 1; | |
1688 | } | |
1689 | ||
212380e3 AC |
1690 | /* |
1691 | * make_user | |
1692 | * | |
1693 | * inputs - pointer to client struct | |
1694 | * output - pointer to struct User | |
1695 | * side effects - add's an User information block to a client | |
1696 | * if it was not previously allocated. | |
1697 | */ | |
1698 | struct User * | |
1699 | make_user(struct Client *client_p) | |
1700 | { | |
1701 | struct User *user; | |
1702 | ||
1703 | user = client_p->user; | |
1704 | if(!user) | |
1705 | { | |
398b6a73 | 1706 | user = (struct User *) rb_bh_alloc(user_heap); |
212380e3 AC |
1707 | user->refcnt = 1; |
1708 | client_p->user = user; | |
1709 | } | |
1710 | return user; | |
1711 | } | |
1712 | ||
1713 | /* | |
1714 | * make_server | |
1715 | * | |
1716 | * inputs - pointer to client struct | |
1717 | * output - pointer to server_t | |
1718 | * side effects - add's an Server information block to a client | |
1719 | * if it was not previously allocated. | |
1720 | */ | |
8f103562 | 1721 | struct Server * |
212380e3 AC |
1722 | make_server(struct Client *client_p) |
1723 | { | |
8f103562 | 1724 | struct Server *serv = client_p->serv; |
212380e3 AC |
1725 | |
1726 | if(!serv) | |
1727 | { | |
8f103562 | 1728 | serv = (struct Server *) rb_malloc(sizeof(struct Server)); |
212380e3 AC |
1729 | client_p->serv = serv; |
1730 | } | |
1731 | return client_p->serv; | |
1732 | } | |
1733 | ||
1734 | /* | |
1735 | * free_user | |
1736 | * | |
1737 | * inputs - pointer to user struct | |
1738 | * - pointer to client struct | |
1739 | * output - none | |
1740 | * side effects - Decrease user reference count by one and release block, | |
1741 | * if count reaches 0 | |
1742 | */ | |
1743 | void | |
1744 | free_user(struct User *user, struct Client *client_p) | |
1745 | { | |
c127b45b SB |
1746 | free_away(client_p); |
1747 | ||
212380e3 AC |
1748 | if(--user->refcnt <= 0) |
1749 | { | |
c127b45b SB |
1750 | if(user->away) |
1751 | rb_free((char *) user->away); | |
212380e3 AC |
1752 | /* |
1753 | * sanity check | |
1754 | */ | |
1755 | if(user->refcnt < 0 || user->invited.head || user->channel.head) | |
1756 | { | |
1757 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1758 | "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *", | |
1759 | (unsigned long) client_p, | |
1760 | client_p ? client_p-> | |
1761 | name : "<noname>", | |
1762 | client_p->username, | |
1763 | client_p->host, | |
1764 | (unsigned long) user, | |
1765 | (unsigned long) user->invited.head, | |
1766 | (unsigned long) user->channel.head, | |
330fc5c1 | 1767 | rb_dlink_list_length(&user->channel), |
212380e3 AC |
1768 | user->refcnt); |
1769 | s_assert(!user->refcnt); | |
1770 | s_assert(!user->invited.head); | |
1771 | s_assert(!user->channel.head); | |
1772 | } | |
1773 | ||
398b6a73 | 1774 | rb_bh_free(user_heap, user); |
212380e3 AC |
1775 | } |
1776 | } | |
1777 | ||
e581ea8e | 1778 | void |
c127b45b | 1779 | allocate_away(struct Client *client_p) |
e581ea8e | 1780 | { |
c127b45b SB |
1781 | if(client_p->user->away == NULL) |
1782 | client_p->user->away = rb_bh_alloc(away_heap); | |
e581ea8e AC |
1783 | } |
1784 | ||
c127b45b | 1785 | |
e581ea8e | 1786 | void |
c127b45b | 1787 | free_away(struct Client *client_p) |
e581ea8e | 1788 | { |
c127b45b SB |
1789 | if(client_p->user != NULL && client_p->user->away != NULL) { |
1790 | rb_bh_free(away_heap, client_p->user->away); | |
1791 | client_p->user->away = NULL; | |
e581ea8e AC |
1792 | } |
1793 | } | |
1794 | ||
212380e3 AC |
1795 | void |
1796 | init_uid(void) | |
1797 | { | |
1798 | int i; | |
1799 | ||
1800 | for(i = 0; i < 3; i++) | |
1801 | current_uid[i] = me.id[i]; | |
1802 | ||
1803 | for(i = 3; i < 9; i++) | |
1804 | current_uid[i] = 'A'; | |
1805 | ||
1806 | current_uid[9] = '\0'; | |
1807 | } | |
1808 | ||
1809 | ||
1810 | char * | |
1811 | generate_uid(void) | |
1812 | { | |
1813 | int i; | |
1814 | ||
1815 | for(i = 8; i > 3; i--) | |
1816 | { | |
1817 | if(current_uid[i] == 'Z') | |
1818 | { | |
1819 | current_uid[i] = '0'; | |
1820 | return current_uid; | |
1821 | } | |
1822 | else if(current_uid[i] != '9') | |
1823 | { | |
1824 | current_uid[i]++; | |
1825 | return current_uid; | |
1826 | } | |
1827 | else | |
1828 | current_uid[i] = 'A'; | |
1829 | } | |
1830 | ||
1831 | /* if this next if() triggers, we're fucked. */ | |
1832 | if(current_uid[3] == 'Z') | |
1833 | { | |
1834 | current_uid[i] = 'A'; | |
1835 | s_assert(0); | |
1836 | } | |
1837 | else | |
1838 | current_uid[i]++; | |
1839 | ||
1840 | return current_uid; | |
1841 | } | |
1842 | ||
1843 | /* | |
1844 | * close_connection | |
1845 | * Close the physical connection. This function must make | |
1846 | * MyConnect(client_p) == FALSE, and set client_p->from == NULL. | |
1847 | */ | |
1848 | void | |
1849 | close_connection(struct Client *client_p) | |
1850 | { | |
1851 | s_assert(client_p != NULL); | |
1852 | if(client_p == NULL) | |
1853 | return; | |
1854 | ||
1855 | s_assert(MyConnect(client_p)); | |
1856 | if(!MyConnect(client_p)) | |
1857 | return; | |
1858 | ||
1859 | if(IsServer(client_p)) | |
1860 | { | |
1861 | struct server_conf *server_p; | |
1862 | ||
8bd5767b JT |
1863 | ServerStats.is_sv++; |
1864 | ServerStats.is_sbs += client_p->localClient->sendB; | |
1865 | ServerStats.is_sbr += client_p->localClient->receiveB; | |
679ccbe5 | 1866 | ServerStats.is_sti += (unsigned long long)(rb_current_time() - client_p->localClient->firsttime); |
212380e3 AC |
1867 | |
1868 | /* | |
1869 | * If the connection has been up for a long amount of time, schedule | |
1870 | * a 'quick' reconnect, else reset the next-connect cycle. | |
1871 | */ | |
1872 | if((server_p = find_server_conf(client_p->name)) != NULL) | |
1873 | { | |
1874 | /* | |
1875 | * Reschedule a faster reconnect, if this was a automatically | |
1876 | * connected configuration entry. (Note that if we have had | |
1877 | * a rehash in between, the status has been changed to | |
1878 | * CONF_ILLEGAL). But only do this if it was a "good" link. | |
1879 | */ | |
1880 | server_p->hold = time(NULL); | |
1881 | server_p->hold += | |
1882 | (server_p->hold - client_p->localClient->lasttime > | |
1883 | HANGONGOODLINK) ? HANGONRETRYDELAY : ConFreq(server_p->class); | |
1884 | } | |
1885 | ||
1886 | } | |
1887 | else if(IsClient(client_p)) | |
1888 | { | |
8bd5767b JT |
1889 | ServerStats.is_cl++; |
1890 | ServerStats.is_cbs += client_p->localClient->sendB; | |
1891 | ServerStats.is_cbr += client_p->localClient->receiveB; | |
679ccbe5 | 1892 | ServerStats.is_cti += (unsigned long long)(rb_current_time() - client_p->localClient->firsttime); |
212380e3 AC |
1893 | } |
1894 | else | |
47adde3d | 1895 | ServerStats.is_ni++; |
54ac8b60 | 1896 | |
c6d72037 | 1897 | if(client_p->localClient->F != NULL) |
54ac8b60 VY |
1898 | { |
1899 | /* attempt to flush any pending dbufs. Evil, but .. -- adrian */ | |
1900 | if(!IsIOError(client_p)) | |
1901 | send_queued(client_p); | |
1902 | ||
c6d72037 | 1903 | del_from_cli_fd_hash(client_p); |
54ac8b60 VY |
1904 | rb_close(client_p->localClient->F); |
1905 | client_p->localClient->F = NULL; | |
1906 | } | |
1907 | ||
734d420e JT |
1908 | rb_linebuf_donebuf(&client_p->localClient->buf_sendq); |
1909 | rb_linebuf_donebuf(&client_p->localClient->buf_recvq); | |
212380e3 AC |
1910 | detach_conf(client_p); |
1911 | ||
1912 | /* XXX shouldnt really be done here. */ | |
1913 | detach_server_conf(client_p); | |
1914 | ||
1915 | client_p->from = NULL; /* ...this should catch them! >:) --msa */ | |
1916 | ClearMyConnect(client_p); | |
1917 | SetIOError(client_p); | |
1918 | } | |
1919 | ||
1920 | ||
1921 | ||
1922 | void | |
1923 | error_exit_client(struct Client *client_p, int error) | |
1924 | { | |
1925 | /* | |
1926 | * ...hmm, with non-blocking sockets we might get | |
1927 | * here from quite valid reasons, although.. why | |
1928 | * would select report "data available" when there | |
1929 | * wasn't... so, this must be an error anyway... --msa | |
1930 | * actually, EOF occurs when read() returns 0 and | |
1931 | * in due course, select() returns that fd as ready | |
1932 | * for reading even though it ends up being an EOF. -avalon | |
1933 | */ | |
1934 | char errmsg[255]; | |
734d420e | 1935 | int current_error = rb_get_sockerr(client_p->localClient->F); |
212380e3 AC |
1936 | |
1937 | SetIOError(client_p); | |
1938 | ||
1939 | if(IsServer(client_p) || IsHandshake(client_p)) | |
1940 | { | |
212380e3 AC |
1941 | if(error == 0) |
1942 | { | |
1943 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) && !IsServer(client_p) ? L_NETWIDE : L_ALL, | |
1944 | "Server %s closed the connection", | |
b3ebc7ab | 1945 | client_p->name); |
212380e3 AC |
1946 | |
1947 | ilog(L_SERVER, "Server %s closed the connection", | |
1948 | log_client_name(client_p, SHOW_IP)); | |
1949 | } | |
1950 | else | |
1951 | { | |
1952 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) && !IsServer(client_p) ? L_NETWIDE : L_ALL, | |
1953 | "Lost connection to %s: %s", | |
1954 | client_p->name, strerror(current_error)); | |
1955 | ilog(L_SERVER, "Lost connection to %s: %s", | |
1956 | log_client_name(client_p, SHOW_IP), strerror(current_error)); | |
1957 | } | |
212380e3 AC |
1958 | } |
1959 | ||
1960 | if(error == 0) | |
f427c8b0 | 1961 | rb_strlcpy(errmsg, "Remote host closed the connection", sizeof(errmsg)); |
212380e3 | 1962 | else |
b2f0da88 | 1963 | rb_snprintf(errmsg, sizeof(errmsg), "Read error: %s", strerror(current_error)); |
212380e3 AC |
1964 | |
1965 | exit_client(client_p, client_p, &me, errmsg); | |
1966 | } |