2 * charybdis: an advanced ircd.
3 * client.c: Controls clients.
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
8 * Copyright (C) 2007 William Pitcock
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.
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.
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
37 #include "s_newconf.h"
52 #include "rb_dictionary.h"
57 #define DEBUG_EXITED_CLIENTS
59 static void check_pings_list(rb_dlink_list
* list
);
60 static void check_unknowns_list(rb_dlink_list
* list
);
61 static void free_exited_clients(void *unused
);
62 static void exit_aborted_clients(void *unused
);
64 static int exit_remote_client(struct Client
*, struct Client
*, struct Client
*,const char *);
65 static int exit_remote_server(struct Client
*, struct Client
*, struct Client
*,const char *);
66 static int exit_local_client(struct Client
*, struct Client
*, struct Client
*,const char *);
67 static int exit_unknown_client(struct Client
*, struct Client
*, struct Client
*,const char *);
68 static int exit_local_server(struct Client
*, struct Client
*, struct Client
*,const char *);
69 static int qs_server(struct Client
*, struct Client
*, struct Client
*, const char *comment
);
71 static EVH check_pings
;
73 static rb_bh
*client_heap
= NULL
;
74 static rb_bh
*lclient_heap
= NULL
;
75 static rb_bh
*pclient_heap
= NULL
;
76 static rb_bh
*user_heap
= NULL
;
77 static rb_bh
*away_heap
= NULL
;
78 static char current_uid
[IDLEN
];
79 static uint32_t current_connid
= 0;
81 rb_dictionary
*nd_dict
= NULL
;
83 rb_dlink_list dead_list
;
84 #ifdef DEBUG_EXITED_CLIENTS
85 static rb_dlink_list dead_remote_list
;
91 struct Client
*client
;
92 char notice
[REASONLEN
];
95 static rb_dlink_list abort_list
;
103 * side effects - initialize client free memory
109 * start off the check ping event .. -- adrian
110 * Every 30 seconds is plenty -- db
112 client_heap
= rb_bh_create(sizeof(struct Client
), CLIENT_HEAP_SIZE
, "client_heap");
113 lclient_heap
= rb_bh_create(sizeof(struct LocalUser
), LCLIENT_HEAP_SIZE
, "lclient_heap");
114 pclient_heap
= rb_bh_create(sizeof(struct PreClient
), PCLIENT_HEAP_SIZE
, "pclient_heap");
115 user_heap
= rb_bh_create(sizeof(struct User
), USER_HEAP_SIZE
, "user_heap");
116 away_heap
= rb_bh_create(AWAYLEN
, AWAY_HEAP_SIZE
, "away_heap");
118 rb_event_addish("check_pings", check_pings
, NULL
, 30);
119 rb_event_addish("free_exited_clients", &free_exited_clients
, NULL
, 4);
120 rb_event_addish("exit_aborted_clients", exit_aborted_clients
, NULL
, 1);
121 rb_event_add("flood_recalc", flood_recalc
, NULL
, 1);
123 nd_dict
= rb_dictionary_create("nickdelay", irccmp
);
127 * connid_get - allocate a connid
130 * outputs - a connid token which is used to represent a logical circuit
131 * side effects - current_connid is incremented, possibly multiple times.
132 * the association of the connid to it's client is committed.
135 connid_get(struct Client
*client_p
)
137 s_assert(MyConnect(client_p
));
138 if (!MyConnect(client_p
))
141 /* find a connid that is available */
142 while (find_cli_connid_hash(++current_connid
) != NULL
)
144 /* handle wraparound, current_connid must NEVER be 0 */
145 if (current_connid
== 0)
149 add_to_cli_connid_hash(client_p
, current_connid
);
150 rb_dlinkAddAlloc(RB_UINT_TO_POINTER(current_connid
), &client_p
->localClient
->connids
);
152 return current_connid
;
156 * connid_put - free a connid
158 * inputs - connid to free
160 * side effects - connid bookkeeping structures are freed
163 connid_put(uint32_t id
)
165 struct Client
*client_p
;
171 client_p
= find_cli_connid_hash(id
);
172 if (client_p
== NULL
)
175 del_from_cli_connid_hash(id
);
176 rb_dlinkFindDestroy(RB_UINT_TO_POINTER(id
), &client_p
->localClient
->connids
);
180 * client_release_connids - release any connids still attached to a client
182 * inputs - client to garbage collect
184 * side effects - client's connids are garbage collected
187 client_release_connids(struct Client
*client_p
)
189 rb_dlink_node
*ptr
, *ptr2
;
191 if (client_p
->localClient
->connids
.head
)
192 s_assert(MyConnect(client_p
));
194 if (!MyConnect(client_p
))
197 RB_DLINK_FOREACH_SAFE(ptr
, ptr2
, client_p
->localClient
->connids
.head
)
198 connid_put(RB_POINTER_TO_UINT(ptr
->data
));
202 * make_client - create a new Client struct and set it to initial state.
204 * from == NULL, create local client (a client connected
207 * from, create remote client (behind a socket
208 * associated with the client defined by
209 * 'from'). ('from' is a local client!!).
212 make_client(struct Client
*from
)
214 struct Client
*client_p
= NULL
;
215 struct LocalUser
*localClient
;
217 client_p
= rb_bh_alloc(client_heap
);
221 client_p
->from
= client_p
; /* 'from' of local client is self! */
223 localClient
= rb_bh_alloc(lclient_heap
);
224 SetMyConnect(client_p
);
225 client_p
->localClient
= localClient
;
227 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= rb_current_time();
229 client_p
->localClient
->F
= NULL
;
231 client_p
->preClient
= rb_bh_alloc(pclient_heap
);
233 /* as good a place as any... */
234 rb_dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
237 { /* from is not NULL */
238 client_p
->localClient
= NULL
;
239 client_p
->preClient
= NULL
;
240 client_p
->from
= from
; /* 'from' of local client is self! */
243 SetUnknown(client_p
);
244 rb_strlcpy(client_p
->username
, "unknown", sizeof(client_p
->username
));
250 free_pre_client(struct Client
*client_p
)
252 s_assert(NULL
!= client_p
);
254 if(client_p
->preClient
== NULL
)
257 s_assert(client_p
->preClient
->auth
.cid
== 0);
259 rb_free(client_p
->preClient
->auth
.data
);
260 rb_free(client_p
->preClient
->auth
.reason
);
262 rb_bh_free(pclient_heap
, client_p
->preClient
);
263 client_p
->preClient
= NULL
;
267 free_local_client(struct Client
*client_p
)
269 s_assert(NULL
!= client_p
);
270 s_assert(&me
!= client_p
);
272 if(client_p
->localClient
== NULL
)
276 * clean up extra sockets from P-lines which have been discarded.
278 if(client_p
->localClient
->listener
)
280 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
281 if(0 == --client_p
->localClient
->listener
->ref_count
282 && !client_p
->localClient
->listener
->active
)
283 free_listener(client_p
->localClient
->listener
);
284 client_p
->localClient
->listener
= 0;
287 client_release_connids(client_p
);
288 if(client_p
->localClient
->F
!= NULL
)
290 rb_close(client_p
->localClient
->F
);
293 if(client_p
->localClient
->passwd
)
295 memset(client_p
->localClient
->passwd
, 0,
296 strlen(client_p
->localClient
->passwd
));
297 rb_free(client_p
->localClient
->passwd
);
300 rb_free(client_p
->localClient
->auth_user
);
301 rb_free(client_p
->localClient
->challenge
);
302 rb_free(client_p
->localClient
->fullcaps
);
303 rb_free(client_p
->localClient
->opername
);
304 rb_free(client_p
->localClient
->mangledhost
);
305 if (client_p
->localClient
->privset
)
306 privilegeset_unref(client_p
->localClient
->privset
);
309 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
311 rb_free(client_p
->localClient
->cipher_string
);
313 if (IsCapable(client_p
, CAP_ZIP
))
314 ssld_decrement_clicount(client_p
->localClient
->z_ctl
);
316 rb_free(client_p
->localClient
->zipstats
);
318 if (client_p
->localClient
->ws_ctl
!= NULL
)
319 wsockd_decrement_clicount(client_p
->localClient
->ws_ctl
);
321 rb_bh_free(lclient_heap
, client_p
->localClient
);
322 client_p
->localClient
= NULL
;
326 free_client(struct Client
*client_p
)
328 s_assert(NULL
!= client_p
);
329 s_assert(&me
!= client_p
);
330 free_local_client(client_p
);
331 free_pre_client(client_p
);
332 rb_free(client_p
->certfp
);
333 rb_bh_free(client_heap
, client_p
);
337 * check_pings - go through the local client list and check activity
338 * kill off stuff that should die
340 * inputs - NOT USED (from event)
341 * output - next time_t when check_pings() should be called again
345 * A PING can be sent to clients as necessary.
347 * Client/Server ping outs are handled.
351 * Addon from adrian. We used to call this after nextping seconds,
352 * however I've changed it to run once a second. This is only for
353 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
354 * run once a second makes life a lot easier - when a new client connects
355 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
356 * we end up waiting 20 seconds. This is stupid. :-)
357 * I will optimise (hah!) check_pings() once I've finished working on
358 * tidying up other network IO evilnesses.
363 check_pings(void *notused
)
365 check_pings_list(&lclient_list
);
366 check_pings_list(&serv_list
);
367 check_unknowns_list(&unknown_list
);
373 * inputs - pointer to list to check
378 check_pings_list(rb_dlink_list
* list
)
380 char scratch
[32]; /* way too generous but... */
381 struct Client
*client_p
; /* current local client_p being examined */
382 int ping
= 0; /* ping time value from client */
383 rb_dlink_node
*ptr
, *next_ptr
;
385 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
387 client_p
= ptr
->data
;
389 if(!MyConnect(client_p
) || IsDead(client_p
))
392 ping
= get_client_ping(client_p
);
394 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
397 * If the client/server hasnt talked to us in 2*ping seconds
398 * and it has a ping time, then close its connection.
400 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
401 && (client_p
->flags
& FLAGS_PINGSENT
)))
403 if(IsServer(client_p
))
405 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
406 "No response from %s, closing link",
409 "No response from %s, closing link",
410 log_client_name(client_p
, HIDE_IP
));
412 (void) snprintf(scratch
, sizeof(scratch
),
413 "Ping timeout: %d seconds",
414 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
416 exit_client(client_p
, client_p
, &me
, scratch
);
419 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
422 * if we havent PINGed the connection and we havent
423 * heard from it in a while, PING it to make sure
426 client_p
->flags
|= FLAGS_PINGSENT
;
427 /* not nice but does the job */
428 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
429 sendto_one(client_p
, "PING :%s", me
.name
);
438 * check_unknowns_list
440 * inputs - pointer to list of unknown clients
442 * side effects - unknown clients get marked for termination after n seconds
445 check_unknowns_list(rb_dlink_list
* list
)
447 rb_dlink_node
*ptr
, *next_ptr
;
448 struct Client
*client_p
;
451 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
453 client_p
= ptr
->data
;
455 if(IsDead(client_p
) || IsClosing(client_p
))
458 /* Still querying with authd */
459 if(client_p
->preClient
!= NULL
&& client_p
->preClient
->auth
.cid
!= 0)
463 * Check UNKNOWN connections - if they have been in this state
464 * for > 30s, close them.
467 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
468 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
470 if(IsAnyServer(client_p
))
472 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
473 "No response from %s, closing link",
476 "No response from %s, closing link",
477 log_client_name(client_p
, HIDE_IP
));
479 exit_client(client_p
, client_p
, &me
, "Connection timed out");
485 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
487 static const char conn_closed
[] = "Connection closed";
488 static const char d_lined
[] = "D-lined";
489 static const char k_lined
[] = "K-lined";
490 const char *reason
= NULL
;
491 const char *exit_reason
= conn_closed
;
493 if(ConfigFileEntry
.kline_with_reason
)
495 reason
= get_user_ban_reason(aconf
);
496 exit_reason
= reason
;
500 reason
= aconf
->status
== D_LINED
? d_lined
: k_lined
;
503 if(ban
== D_LINED
&& !IsPerson(client_p
))
504 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
506 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
507 me
.name
, client_p
->name
, reason
);
509 exit_client(client_p
, client_p
, &me
,
510 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
511 ConfigFileEntry
.kline_reason
);
518 * side effects - Check all connections for a pending k/dline against the
519 * client, exit the client if found.
522 check_banned_lines(void)
533 * side effects - all clients will be checked for klines
538 struct Client
*client_p
;
539 struct ConfItem
*aconf
;
541 rb_dlink_node
*next_ptr
;
543 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
545 client_p
= ptr
->data
;
547 if(IsMe(client_p
) || !IsPerson(client_p
))
550 if((aconf
= find_kline(client_p
)) != NULL
)
552 if(IsExemptKline(client_p
))
554 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
555 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
556 get_client_name(client_p
, HIDE_IP
),
557 aconf
->user
, aconf
->host
);
561 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
562 "KLINE active for %s",
563 get_client_name(client_p
, HIDE_IP
));
565 notify_banned_client(client_p
, aconf
, K_LINED
);
574 * This process needs to be kept in sync with find_kline() aka find_conf_by_address().
576 * inputs - pointer to kline to check
578 * side effects - all clients will be checked against given kline
581 check_one_kline(struct ConfItem
*kline
)
583 struct Client
*client_p
;
585 rb_dlink_node
*next_ptr
;
587 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
589 client_p
= ptr
->data
;
591 if(IsMe(client_p
) || !IsPerson(client_p
))
594 if(!match(kline
->user
, client_p
->username
))
597 /* match one kline */
602 struct rb_sockaddr_storage sockaddr
;
604 masktype
= parse_netmask(kline
->host
, (struct sockaddr
*)&sockaddr
, &bits
);
609 if(comp_with_mask_sock((struct sockaddr
*)&client_p
->localClient
->ip
,
610 (struct sockaddr
*)&sockaddr
, bits
))
613 if (match(kline
->host
, client_p
->orighost
))
621 if(IsExemptKline(client_p
))
623 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
624 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
625 get_client_name(client_p
, HIDE_IP
),
626 kline
->user
, kline
->host
);
630 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
631 "KLINE active for %s",
632 get_client_name(client_p
, HIDE_IP
));
634 notify_banned_client(client_p
, kline
, K_LINED
);
643 * side effects - all clients will be checked for dlines
648 struct Client
*client_p
;
649 struct ConfItem
*aconf
;
651 rb_dlink_node
*next_ptr
;
653 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
655 client_p
= ptr
->data
;
660 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, GET_SS_FAMILY(&client_p
->localClient
->ip
))) != NULL
)
662 if(aconf
->status
& CONF_EXEMPTDLINE
)
665 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
666 "DLINE active for %s",
667 get_client_name(client_p
, HIDE_IP
));
669 notify_banned_client(client_p
, aconf
, D_LINED
);
674 /* dlines need to be checked against unknowns too */
675 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
677 client_p
= ptr
->data
;
679 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, GET_SS_FAMILY(&client_p
->localClient
->ip
))) != NULL
)
681 if(aconf
->status
& CONF_EXEMPTDLINE
)
684 notify_banned_client(client_p
, aconf
, D_LINED
);
693 * side effects - all clients will be checked for xlines
698 struct Client
*client_p
;
699 struct ConfItem
*aconf
;
701 rb_dlink_node
*next_ptr
;
703 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
705 client_p
= ptr
->data
;
707 if(IsMe(client_p
) || !IsPerson(client_p
))
710 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
712 if(IsExemptKline(client_p
))
714 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
715 "XLINE over-ruled for %s, client is kline_exempt [%s]",
716 get_client_name(client_p
, HIDE_IP
),
721 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
722 get_client_name(client_p
, HIDE_IP
));
724 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
732 * inputs - resv, reason, time
734 * side effects - all local clients matching resv will be FNC'd
737 resv_nick_fnc(const char *mask
, const char *reason
, int temp_time
)
739 struct Client
*client_p
, *target_p
;
741 rb_dlink_node
*next_ptr
;
743 char note
[NICKLEN
+10];
745 if (!ConfigFileEntry
.resv_fnc
)
748 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
750 client_p
= ptr
->data
;
752 if(IsMe(client_p
) || !IsPerson(client_p
) || IsExemptResv(client_p
))
755 /* Skip users that already have UID nicks. */
756 if(IsDigit(client_p
->name
[0]))
759 if(match_esc(mask
, client_p
->name
))
764 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
765 "RESV forced nick change for %s!%s@%s to %s; nick matched [%s] (%s)",
766 client_p
->name
, client_p
->username
, client_p
->host
, nick
, mask
, reason
);
768 sendto_realops_snomask(SNO_NCHANGE
, L_ALL
,
769 "Nick change: From %s to %s [%s@%s]",
770 client_p
->name
, nick
, client_p
->username
, client_p
->host
);
775 sendto_one_notice(client_p
,
776 ":*** Nick %s is temporarily unavailable on this server.",
781 sendto_one_notice(client_p
,
782 ":*** Nick %s is no longer available on this server.",
786 /* Do all of the nick-changing gymnastics. */
787 client_p
->tsinfo
= rb_current_time();
788 whowas_add_history(client_p
, 1);
790 monitor_signoff(client_p
);
792 invalidate_bancache_user(client_p
);
794 sendto_common_channels_local(client_p
, NOCAPS
, NOCAPS
, ":%s!%s@%s NICK :%s",
795 client_p
->name
, client_p
->username
, client_p
->host
, nick
);
796 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
, ":%s NICK %s :%ld",
797 use_id(client_p
), nick
, (long) client_p
->tsinfo
);
799 del_from_client_hash(client_p
->name
, client_p
);
800 rb_strlcpy(client_p
->name
, nick
, sizeof(client_p
->name
));
801 add_to_client_hash(nick
, client_p
);
803 monitor_signon(client_p
);
805 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
807 target_p
= ptr
->data
;
808 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
809 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
812 snprintf(note
, sizeof(note
), "Nick: %s", nick
);
813 rb_note(client_p
->localClient
->F
, note
);
819 * update_client_exit_stats
821 * input - pointer to client
826 update_client_exit_stats(struct Client
*client_p
)
828 if(IsServer(client_p
))
830 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
831 "Server %s split from %s",
832 client_p
->name
, client_p
->servptr
->name
);
833 if(HasSentEob(client_p
))
836 else if(IsClient(client_p
))
841 if(IsInvisible(client_p
))
845 if(splitchecking
&& !splitmode
)
846 check_splitmode(NULL
);
850 * release_client_state
852 * input - pointer to client to release
857 release_client_state(struct Client
*client_p
)
859 if(client_p
->user
!= NULL
)
861 free_user(client_p
->user
, client_p
); /* try this here */
865 if(client_p
->serv
->user
!= NULL
)
866 free_user(client_p
->serv
->user
, client_p
);
867 if(client_p
->serv
->fullcaps
)
868 rb_free(client_p
->serv
->fullcaps
);
869 rb_free(client_p
->serv
);
874 * remove_client_from_list
875 * inputs - point to client to remove
877 * side effects - taken the code from ExitOneClient() for this
878 * and placed it here. - avalon
881 remove_client_from_list(struct Client
*client_p
)
883 s_assert(NULL
!= client_p
);
888 /* A client made with make_client()
889 * is on the unknown_list until removed.
890 * If it =does= happen to exit before its removed from that list
891 * and its =not= on the global_client_list, it will core here.
892 * short circuit that case now -db
894 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
897 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
899 update_client_exit_stats(client_p
);
905 * input - nickname to check, flag for nick from local client
906 * output - 0 if erroneous, else 1
910 clean_nick(const char *nick
, int loc_client
)
914 /* nicks cant start with a digit or -, and must have a length */
915 if(*nick
== '-' || *nick
== '\0')
918 if(loc_client
&& IsDigit(*nick
))
924 if(!IsNickChar(*nick
))
929 if(len
>= NICKLEN
&& (unsigned int)len
>= ConfigFileEntry
.nicklen
)
936 * find_person - find person by (nick)name.
937 * inputs - pointer to name
938 * output - return client pointer
942 find_person(const char *name
)
944 struct Client
*c2ptr
;
946 c2ptr
= find_client(name
);
948 if(c2ptr
&& IsPerson(c2ptr
))
954 find_named_person(const char *name
)
956 struct Client
*c2ptr
;
958 c2ptr
= find_named_client(name
);
960 if(c2ptr
&& IsPerson(c2ptr
))
967 * find_chasing - find the client structure for a nick name (user)
968 * using history mechanism if necessary. If the client is not found,
969 * an error message (NO SUCH NICK) is generated. If the client was found
970 * through the history, chasing will be 1 and otherwise 0.
973 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
977 if(MyClient(source_p
))
978 who
= find_named_person(user
);
980 who
= find_person(user
);
985 if(who
|| IsDigit(*user
))
988 if(!(who
= whowas_get_history(user
, (long) KILLCHASETIMELIMIT
)))
990 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
991 form_str(ERR_NOSUCHNICK
), user
);
1000 * get_client_name - Return the name of the client
1001 * for various tracking and
1002 * admin purposes. The main purpose of this function is to
1003 * return the "socket host" name of the client, if that
1004 * differs from the advertised name (other than case).
1005 * But, this can be used to any client structure.
1008 * Watch out the allocation of "nbuf", if either source_p->name
1009 * or source_p->sockhost gets changed into pointers instead of
1010 * directly allocated within the structure...
1013 * Function return either a pointer to the structure (source_p) or
1014 * to internal buffer (nbuf). *NEVER* use the returned pointer
1015 * to modify what it points!!!
1019 get_client_name(struct Client
*client
, int showip
)
1021 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
1023 s_assert(NULL
!= client
);
1027 if(MyConnect(client
))
1029 if(!irccmp(client
->name
, client
->host
))
1030 return client
->name
;
1032 if(ConfigFileEntry
.hide_spoof_ips
&&
1033 showip
== SHOW_IP
&& IsIPSpoof(client
))
1035 if(IsAnyServer(client
))
1038 /* And finally, let's get the host information, ip or name */
1042 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
1043 client
->name
, client
->username
,
1047 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
1048 client
->name
, client
->username
);
1051 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
1052 client
->name
, client
->username
, client
->host
);
1057 /* As pointed out by Adel Mezibra
1058 * Neph|l|m@EFnet. Was missing a return here.
1060 return client
->name
;
1063 /* log_client_name()
1065 * This version is the same as get_client_name, but doesnt contain the
1066 * code that will hide IPs always. This should be used for logfiles.
1069 log_client_name(struct Client
*target_p
, int showip
)
1071 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
1073 if(target_p
== NULL
)
1076 if(MyConnect(target_p
))
1078 if(irccmp(target_p
->name
, target_p
->host
) == 0)
1079 return target_p
->name
;
1084 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1085 target_p
->username
, target_p
->sockhost
);
1089 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1090 target_p
->username
, target_p
->host
);
1096 return target_p
->name
;
1099 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
1100 * oper (send notices netwide) */
1102 is_remote_connect(struct Client
*client_p
)
1104 struct Client
*oper
;
1106 if (client_p
->serv
== NULL
)
1108 oper
= find_named_person(client_p
->serv
->by
);
1109 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
1113 free_exited_clients(void *unused
)
1115 rb_dlink_node
*ptr
, *next
;
1116 struct Client
*target_p
;
1118 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
1120 target_p
= ptr
->data
;
1122 #ifdef DEBUG_EXITED_CLIENTS
1124 struct abort_client
*abt
;
1125 rb_dlink_node
*aptr
;
1128 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
1131 if(abt
->client
== target_p
)
1134 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1135 "On abort_list: %s stat: %u flags: %llu handler: %c",
1136 target_p
->name
, (unsigned int) target_p
->status
,
1137 (unsigned long long)target_p
->flags
, target_p
->handler
);
1138 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1139 "Please report this to the charybdis developers!");
1146 rb_dlinkDestroy(ptr
, &dead_list
);
1152 if(ptr
->data
== NULL
)
1154 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1155 "Warning: null client on dead_list!");
1156 rb_dlinkDestroy(ptr
, &dead_list
);
1159 release_client_state(target_p
);
1160 free_client(target_p
);
1161 rb_dlinkDestroy(ptr
, &dead_list
);
1164 #ifdef DEBUG_EXITED_CLIENTS
1165 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1167 target_p
= ptr
->data
;
1169 if(ptr
->data
== NULL
)
1171 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1172 "Warning: null client on dead_list!");
1173 rb_dlinkDestroy(ptr
, &dead_list
);
1176 release_client_state(target_p
);
1177 free_client(target_p
);
1178 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1185 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1186 ** already been sent. we make sure to exit a server's dependent clients
1187 ** and servers before the server itself; exit_one_client takes care of
1188 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1191 * added sanity test code.... source_p->serv might be NULL...
1194 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1196 struct Client
*target_p
;
1197 rb_dlink_node
*ptr
, *ptr_next
;
1202 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1205 /* this is very ugly, but it saves cpu :P */
1206 if(ConfigFileEntry
.nick_delay
> 0)
1208 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1210 target_p
= ptr
->data
;
1211 target_p
->flags
|= FLAGS_KILLED
;
1212 add_nd_entry(target_p
->name
);
1214 if(!IsDead(target_p
) && !IsClosing(target_p
))
1215 exit_remote_client(NULL
, target_p
, &me
, comment
);
1220 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1222 target_p
= ptr
->data
;
1223 target_p
->flags
|= FLAGS_KILLED
;
1225 if(!IsDead(target_p
) && !IsClosing(target_p
))
1226 exit_remote_client(NULL
, target_p
, &me
, comment
);
1230 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1232 target_p
= ptr
->data
;
1233 recurse_remove_clients(target_p
, comment
);
1234 qs_server(NULL
, target_p
, &me
, comment
);
1239 ** Remove *everything* that depends on source_p, from all lists, and sending
1240 ** all necessary SQUITs. source_p itself is still on the lists,
1241 ** and its SQUITs have been sent except for the upstream one -orabidoo
1244 remove_dependents(struct Client
*client_p
,
1245 struct Client
*source_p
,
1246 struct Client
*from
, const char *comment
, const char *comment1
)
1249 rb_dlink_node
*ptr
, *next
;
1251 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1255 if(IsMe(to
) || to
== source_p
->from
|| to
== client_p
)
1258 sendto_one(to
, "SQUIT %s :%s", get_id(source_p
, to
), comment
);
1261 recurse_remove_clients(source_p
, comment1
);
1265 exit_aborted_clients(void *unused
)
1267 struct abort_client
*abt
;
1268 rb_dlink_node
*ptr
, *next
;
1269 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1273 #ifdef DEBUG_EXITED_CLIENTS
1275 if(rb_dlinkFind(abt
->client
, &dead_list
))
1278 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1279 "On dead_list: %s stat: %u flags: %llu handler: %c",
1280 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1281 (unsigned long long)abt
->client
->flags
, abt
->client
->handler
);
1282 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1283 "Please report this to the charybdis developers!");
1289 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1290 rb_dlinkDelete(ptr
, &abort_list
);
1292 if(IsAnyServer(abt
->client
))
1293 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1294 "Closing link to %s: %s",
1295 abt
->client
->name
, abt
->notice
);
1297 /* its no longer on abort list - we *must* remove
1298 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1300 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1301 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1308 * dead_link - Adds client to a list of clients that need an exit_client()
1311 dead_link(struct Client
*client_p
, int sendqex
)
1313 struct abort_client
*abt
;
1315 s_assert(!IsMe(client_p
));
1316 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1319 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1322 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1324 snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1326 abt
->client
= client_p
;
1327 SetIOError(client_p
);
1329 SetClosing(client_p
);
1330 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1334 /* This does the remove of the user from channels..local or remote */
1336 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1337 const char *comment
)
1339 rb_dlink_node
*ptr
, *next_ptr
;
1341 if(IsOper(source_p
))
1342 rb_dlinkFindDestroy(source_p
, &oper_list
);
1344 sendto_common_channels_local(source_p
, NOCAPS
, NOCAPS
, ":%s!%s@%s QUIT :%s",
1346 source_p
->username
, source_p
->host
, comment
);
1348 remove_user_from_channels(source_p
);
1350 /* Should not be in any channels now */
1351 s_assert(source_p
->user
->channel
.head
== NULL
);
1353 /* Clean up invitefield */
1354 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1356 del_invite(ptr
->data
, source_p
);
1359 /* Clean up allow lists */
1360 del_all_accepts(source_p
);
1362 whowas_add_history(source_p
, 0);
1363 whowas_off_history(source_p
);
1365 monitor_signoff(source_p
);
1367 if(has_id(source_p
))
1368 del_from_id_hash(source_p
->id
, source_p
);
1370 del_from_hostname_hash(source_p
->orighost
, source_p
);
1371 del_from_client_hash(source_p
->name
, source_p
);
1372 remove_client_from_list(source_p
);
1376 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1380 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1381 const char *comment
)
1383 exit_generic_client(client_p
, source_p
, from
, comment
);
1385 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1387 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1390 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1392 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1393 ":%s QUIT :%s", use_id(source_p
), comment
);
1397 #ifdef DEBUG_EXITED_CLIENTS
1398 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1400 rb_dlinkAddAlloc(source_p
, &dead_list
);
1402 return(CLIENT_EXITED
);
1406 * This assumes IsUnknown(source_p) == true and MyConnect(source_p) == true
1410 exit_unknown_client(struct Client
*client_p
, /* The local client originating the
1411 * exit or NULL, if this exit is
1412 * generated by this server for
1414 * This will not get any of the
1415 * generated messages. */
1416 struct Client
*source_p
, /* Client exiting */
1417 struct Client
*from
, /* Client firing off this Exit,
1419 const char *comment
)
1421 authd_abort_client(source_p
);
1422 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1424 if(!IsIOError(source_p
))
1425 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1426 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1429 close_connection(source_p
);
1431 if(has_id(source_p
))
1432 del_from_id_hash(source_p
->id
, source_p
);
1434 del_from_hostname_hash(source_p
->host
, source_p
);
1435 if (!IsAnyServer(source_p
))
1436 del_from_client_hash(source_p
->name
, source_p
);
1437 remove_client_from_list(source_p
);
1439 rb_dlinkAddAlloc(source_p
, &dead_list
);
1441 /* Note that we don't need to add unknowns to the dead_list */
1442 return(CLIENT_EXITED
);
1446 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1447 const char *comment
)
1449 static char comment1
[(HOSTLEN
*2)+2];
1450 static char newcomment
[BUFSIZE
];
1451 struct Client
*target_p
;
1453 if(ConfigServerHide
.flatten_links
)
1454 strcpy(comment1
, "*.net *.split");
1457 strcpy(comment1
, source_p
->servptr
->name
);
1458 strcat(comment1
, " ");
1459 strcat(comment1
, source_p
->name
);
1462 snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1463 from
->name
, comment
);
1465 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1467 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1469 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1470 target_p
= source_p
->from
;
1472 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1473 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1475 sendto_one(target_p
, ":%s SQUIT %s :%s",
1476 get_id(from
, target_p
), get_id(source_p
, target_p
),
1480 if(has_id(source_p
))
1481 del_from_id_hash(source_p
->id
, source_p
);
1483 del_from_client_hash(source_p
->name
, source_p
);
1484 remove_client_from_list(source_p
);
1486 scache_split(source_p
->serv
->nameinfo
);
1489 #ifdef DEBUG_EXITED_CLIENTS
1490 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1492 rb_dlinkAddAlloc(source_p
, &dead_list
);
1498 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1499 const char *comment
)
1501 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1502 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1506 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1508 if(has_id(source_p
))
1509 del_from_id_hash(source_p
->id
, source_p
);
1511 del_from_client_hash(source_p
->name
, source_p
);
1512 remove_client_from_list(source_p
);
1513 scache_split(source_p
->serv
->nameinfo
);
1516 rb_dlinkAddAlloc(source_p
, &dead_list
);
1521 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1522 const char *comment
)
1524 static char comment1
[(HOSTLEN
*2)+2];
1525 static char newcomment
[BUFSIZE
];
1526 unsigned int sendk
, recvk
;
1528 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1529 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1531 sendk
= source_p
->localClient
->sendK
;
1532 recvk
= source_p
->localClient
->receiveK
;
1534 /* Always show source here, so the server notices show
1535 * which side initiated the split -- jilles
1537 snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1538 from
== source_p
? me
.name
: from
->name
, comment
);
1539 if (!IsIOError(source_p
))
1540 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1542 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1544 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1545 source_p
->name
, comment
);
1548 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1549 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1554 close_connection(source_p
);
1556 if(ConfigServerHide
.flatten_links
)
1557 strcpy(comment1
, "*.net *.split");
1560 strcpy(comment1
, source_p
->servptr
->name
);
1561 strcat(comment1
, " ");
1562 strcat(comment1
, source_p
->name
);
1565 if(source_p
->serv
!= NULL
)
1566 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1568 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1569 " for %ld seconds. %d/%d sendK/recvK.",
1570 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1572 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1573 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1575 if(has_id(source_p
))
1576 del_from_id_hash(source_p
->id
, source_p
);
1578 del_from_client_hash(source_p
->name
, source_p
);
1579 remove_client_from_list(source_p
);
1580 scache_split(source_p
->serv
->nameinfo
);
1583 rb_dlinkAddAlloc(source_p
, &dead_list
);
1589 * This assumes IsPerson(source_p) == true && MyConnect(source_p) == true
1593 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1594 const char *comment
)
1596 unsigned long on_for
;
1599 exit_generic_client(client_p
, source_p
, from
, comment
);
1600 clear_monitor(source_p
);
1602 s_assert(IsPerson(source_p
));
1603 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1604 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1606 if(IsOper(source_p
))
1607 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1609 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1610 "Client exiting: %s (%s@%s) [%s] [%s]",
1612 source_p
->username
, source_p
->host
, comment
,
1613 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1615 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1616 "CLIEXIT %s %s %s %s 0 %s",
1617 source_p
->name
, source_p
->username
, source_p
->host
,
1618 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1621 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1623 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
1624 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1625 (on_for
% 3600) / 60, on_for
% 60,
1626 source_p
->name
, source_p
->username
, source_p
->host
,
1628 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1630 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1631 close_connection(source_p
);
1633 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1635 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1636 ":%s QUIT :%s", use_id(source_p
), comment
);
1640 rb_dlinkAddAlloc(source_p
, &dead_list
);
1641 return(CLIENT_EXITED
);
1646 ** exit_client - This is old "m_bye". Name changed, because this is not a
1647 ** protocol function, but a general server utility function.
1649 ** This function exits a client of *any* type (user, server, etc)
1650 ** from this server. Also, this generates all necessary prototol
1651 ** messages that this exit may cause.
1653 ** 1) If the client is a local client, then this implicitly
1654 ** exits all other clients depending on this connection (e.g.
1655 ** remote clients having 'from'-field that points to this.
1657 ** 2) If the client is a remote client, then only this is exited.
1659 ** For convenience, this function returns a suitable value for
1660 ** m_function return value:
1662 ** CLIENT_EXITED if (client_p == source_p)
1663 ** 0 if (client_p != source_p)
1666 exit_client(struct Client
*client_p
, /* The local client originating the
1667 * exit or NULL, if this exit is
1668 * generated by this server for
1670 * This will not get any of the
1671 * generated messages. */
1672 struct Client
*source_p
, /* Client exiting */
1673 struct Client
*from
, /* Client firing off this Exit,
1675 const char *comment
/* Reason for the exit */
1680 hook_data_client_exit hdata
;
1681 if(IsClosing(source_p
))
1684 /* note, this HAS to be here, when we exit a client we attempt to
1685 * send them data, if this generates a write error we must *not* add
1686 * them to the abort list --fl
1688 SetClosing(source_p
);
1690 hdata
.local_link
= client_p
;
1691 hdata
.target
= source_p
;
1693 hdata
.comment
= comment
;
1694 call_hook(h_client_exit
, &hdata
);
1696 if(MyConnect(source_p
))
1698 /* Local clients of various types */
1699 if(IsPerson(source_p
))
1700 ret
= exit_local_client(client_p
, source_p
, from
, comment
);
1701 else if(IsServer(source_p
))
1702 ret
= exit_local_server(client_p
, source_p
, from
, comment
);
1703 /* IsUnknown || IsConnecting || IsHandShake */
1704 else if(!IsReject(source_p
))
1705 ret
= exit_unknown_client(client_p
, source_p
, from
, comment
);
1710 if(IsPerson(source_p
))
1711 ret
= exit_remote_client(client_p
, source_p
, from
, comment
);
1712 else if(IsServer(source_p
))
1713 ret
= exit_remote_server(client_p
, source_p
, from
, comment
);
1716 call_hook(h_after_client_exit
, NULL
);
1722 * Count up local client memory
1725 /* XXX one common Client list now */
1727 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1730 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1731 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1735 * Count up remote client memory
1738 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1740 size_t lcount
, rcount
;
1741 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1742 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1743 *count
= rcount
- lcount
;
1744 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1749 * accept processing, this adds a form of "caller ID" to ircd
1751 * If a client puts themselves into "caller ID only" mode,
1752 * only clients that match a client pointer they have put on
1753 * the accept list will be allowed to message them.
1755 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1757 * [target.allow_list] -> [ source1 ] -> [source2 ]
1759 * i.e. a target will have a link list of source pointers it will allow
1760 * each source client then has a back pointer pointing back
1761 * to the client that has it on its accept list.
1762 * This allows for exit_one_client to remove these now bogus entries
1763 * from any client having an accept on them.
1768 * inputs - pointer to exiting client
1770 * side effects - Walk through given clients allow_list and on_allow_list
1771 * remove all references to this client
1774 del_all_accepts(struct Client
*client_p
)
1777 rb_dlink_node
*next_ptr
;
1778 struct Client
*target_p
;
1780 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1782 /* clear this clients accept list, and remove them from
1783 * everyones on_accept_list
1785 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1787 target_p
= ptr
->data
;
1788 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1789 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1793 /* remove this client from everyones accept list */
1794 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1796 target_p
= ptr
->data
;
1797 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1798 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1803 * show_ip() - asks if the true IP should be shown when source is
1804 * asking for info about target
1806 * Inputs - source_p who is asking
1807 * - target_p who do we want the info on
1808 * Output - returns 1 if clear IP can be shown, otherwise 0
1809 * Side Effects - none
1813 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1815 if(IsAnyServer(target_p
))
1819 else if(IsIPSpoof(target_p
))
1821 /* source == NULL indicates message is being sent
1824 if(!ConfigFileEntry
.hide_spoof_ips
&&
1825 (source_p
== NULL
|| MyOper(source_p
)))
1829 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1836 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1838 if(IsConfDoSpoofIp(aconf
))
1840 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1850 show_ip_whowas(struct Whowas
*whowas
, struct Client
*source_p
)
1852 if(whowas
->flags
& WHOWAS_IP_SPOOFING
)
1853 if(ConfigFileEntry
.hide_spoof_ips
|| !MyOper(source_p
))
1855 if(whowas
->flags
& WHOWAS_DYNSPOOF
)
1856 if(!IsOper(source_p
))
1864 * inputs - pointer to client struct
1865 * output - pointer to struct User
1866 * side effects - add's an User information block to a client
1867 * if it was not previously allocated.
1870 make_user(struct Client
*client_p
)
1874 user
= client_p
->user
;
1877 user
= (struct User
*) rb_bh_alloc(user_heap
);
1879 client_p
->user
= user
;
1887 * inputs - pointer to client struct
1888 * output - pointer to server_t
1889 * side effects - add's an Server information block to a client
1890 * if it was not previously allocated.
1893 make_server(struct Client
*client_p
)
1895 struct Server
*serv
= client_p
->serv
;
1899 serv
= (struct Server
*) rb_malloc(sizeof(struct Server
));
1900 client_p
->serv
= serv
;
1902 return client_p
->serv
;
1908 * inputs - pointer to user struct
1909 * - pointer to client struct
1911 * side effects - Decrease user reference count by one and release block,
1912 * if count reaches 0
1915 free_user(struct User
*user
, struct Client
*client_p
)
1917 free_away(client_p
);
1919 if(--user
->refcnt
<= 0)
1922 rb_free((char *) user
->away
);
1926 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1928 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1929 "* %p user (%s!%s@%s) %p %p %p %lu %d *",
1931 client_p
? client_p
->
1938 rb_dlink_list_length(&user
->channel
),
1940 s_assert(!user
->refcnt
);
1941 s_assert(!user
->invited
.head
);
1942 s_assert(!user
->channel
.head
);
1945 rb_bh_free(user_heap
, user
);
1950 allocate_away(struct Client
*client_p
)
1952 if(client_p
->user
->away
== NULL
)
1953 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1958 free_away(struct Client
*client_p
)
1960 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1961 rb_bh_free(away_heap
, client_p
->user
->away
);
1962 client_p
->user
->away
= NULL
;
1971 for(i
= 0; i
< 3; i
++)
1972 current_uid
[i
] = me
.id
[i
];
1974 for(i
= 3; i
< 9; i
++)
1975 current_uid
[i
] = 'A';
1977 current_uid
[9] = '\0';
1984 static int flipped
= 0;
1988 for(i
= 8; i
> 3; i
--)
1990 if(current_uid
[i
] == 'Z')
1992 current_uid
[i
] = '0';
1995 else if(current_uid
[i
] != '9')
2001 current_uid
[i
] = 'A';
2004 /* if this next if() triggers, we're fucked. */
2005 if(current_uid
[3] == 'Z')
2007 current_uid
[i
] = 'A';
2013 /* if this happens..well, i'm not sure what to say, but lets handle it correctly */
2014 if(rb_unlikely(flipped
))
2016 /* this slows down uid generation a bit... */
2017 if(find_id(current_uid
) != NULL
)
2025 * Close the physical connection. This function must make
2026 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
2029 close_connection(struct Client
*client_p
)
2031 s_assert(client_p
!= NULL
);
2032 if(client_p
== NULL
)
2035 s_assert(MyConnect(client_p
));
2036 if(!MyConnect(client_p
))
2039 if(IsServer(client_p
))
2041 struct server_conf
*server_p
;
2043 ServerStats
.is_sv
++;
2044 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
2045 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
2046 ServerStats
.is_sti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
2049 * If the connection has been up for a long amount of time, schedule
2050 * a 'quick' reconnect, else reset the next-connect cycle.
2052 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
2055 * Reschedule a faster reconnect, if this was a automatically
2056 * connected configuration entry. (Note that if we have had
2057 * a rehash in between, the status has been changed to
2058 * CONF_ILLEGAL). But only do this if it was a "good" link.
2060 server_p
->hold
= time(NULL
);
2062 (server_p
->hold
- client_p
->localClient
->lasttime
>
2063 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
2067 else if(IsClient(client_p
))
2069 ServerStats
.is_cl
++;
2070 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
2071 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
2072 ServerStats
.is_cti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
2075 ServerStats
.is_ni
++;
2077 client_release_connids(client_p
);
2079 if(client_p
->localClient
->F
!= NULL
)
2081 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
2082 if(!IsIOError(client_p
))
2083 send_queued(client_p
);
2085 rb_close(client_p
->localClient
->F
);
2086 client_p
->localClient
->F
= NULL
;
2089 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
2090 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
2091 detach_conf(client_p
);
2093 /* XXX shouldnt really be done here. */
2094 detach_server_conf(client_p
);
2096 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
2097 ClearMyConnect(client_p
);
2098 SetIOError(client_p
);
2104 error_exit_client(struct Client
*client_p
, int error
)
2107 * ...hmm, with non-blocking sockets we might get
2108 * here from quite valid reasons, although.. why
2109 * would select report "data available" when there
2110 * wasn't... so, this must be an error anyway... --msa
2111 * actually, EOF occurs when read() returns 0 and
2112 * in due course, select() returns that fd as ready
2113 * for reading even though it ends up being an EOF. -avalon
2116 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
2118 SetIOError(client_p
);
2120 if(IsServer(client_p
) || IsHandshake(client_p
))
2124 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2125 "Server %s closed the connection",
2128 ilog(L_SERVER
, "Server %s closed the connection",
2129 log_client_name(client_p
, SHOW_IP
));
2133 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2134 "Lost connection to %s: %s",
2135 client_p
->name
, strerror(current_error
));
2136 ilog(L_SERVER
, "Lost connection to %s: %s",
2137 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2142 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2144 snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2146 exit_client(client_p
, client_p
, &me
, errmsg
);