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Comparing ircd-hybrid/trunk/src/client.c (file contents):
Revision 2811 by michael, Sun Jan 12 19:39:33 2014 UTC vs.
Revision 4400 by michael, Tue Aug 5 17:42:56 2014 UTC

#	Line 1 | Line 1
1		/*
2	<	*  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3	<	*  client.c: Controls clients.
2	>	*  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3		*
4	<	*  Copyright (C) 2002 by the past and present ircd coders, and others.
4	>	*  Copyright (c) 1997-2014 ircd-hybrid development team
5		*
6		*  This program is free software; you can redistribute it and/or modify
7		*  it under the terms of the GNU General Public License as published by
#	Line 18 | Line 17
17		*  along with this program; if not, write to the Free Software
18		*  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
19		*  USA
20	<	*
21	<	*  $Id$
20	>	*/
21	>
22	>	/*! \file client.c
23	>	* \brief Controls clients.
24	>	* \version $Id$
25		*/
26
27		#include "stdinc.h"
28		#include "list.h"
29		#include "client.h"
28	–	#include "channel_mode.h"
30		#include "event.h"
30	–	#include "fdlist.h"
31		#include "hash.h"
32		#include "irc_string.h"
33		#include "ircd.h"
34	–	#include "s_gline.h"
34		#include "numeric.h"
35	<	#include "packet.h"
37	<	#include "s_auth.h"
35	>	#include "auth.h"
36		#include "s_bsd.h"
37		#include "conf.h"
38		#include "log.h"
39	<	#include "s_misc.h"
40	<	#include "s_serv.h"
39	>	#include "misc.h"
40	>	#include "server.h"
41		#include "send.h"
42		#include "whowas.h"
43	<	#include "s_user.h"
46	<	#include "dbuf.h"
43	>	#include "user.h"
44		#include "memory.h"
45		#include "mempool.h"
46		#include "hostmask.h"
47		#include "listener.h"
51	–	#include "irc_res.h"
48		#include "userhost.h"
49		#include "watch.h"
50		#include "rng_mt.h"
51		#include "parse.h"
52	+	#include "ipcache.h"
53
57	–	dlink_list listing_client_list = { NULL, NULL, 0 };
58	–	/* Pointer to beginning of Client list */
59	–	dlink_list global_client_list = {NULL, NULL, 0};
60	–	/* unknown/client pointer lists */
61	–	dlink_list unknown_list = {NULL, NULL, 0};
62	–	dlink_list local_client_list = {NULL, NULL, 0};
63	–	dlink_list serv_list = {NULL, NULL, 0};
64	–	dlink_list global_serv_list = {NULL, NULL, 0};
65	–	dlink_list oper_list = {NULL, NULL, 0};
54
55	<	static EVH check_pings;
56	<
57	<	static mp_pool_t *client_pool  = NULL;
58	<	static mp_pool_t *lclient_pool = NULL;
59	<
60	<	static dlink_list dead_list  = { NULL, NULL, 0};
61	<	static dlink_list abort_list = { NULL, NULL, 0};
55	>	dlink_list listing_client_list;
56	>	dlink_list unknown_list;
57	>	dlink_list local_client_list;
58	>	dlink_list local_server_list;
59	>	dlink_list global_client_list;
60	>	dlink_list global_server_list;
61	>	dlink_list oper_list;
62
63	+	static mp_pool_t *client_pool, *lclient_pool;
64	+	static dlink_list dead_list, abort_list;
65		static dlink_node *eac_next;  /* next aborted client to exit */
66
77	–	static void check_pings_list(dlink_list *);
78	–	static void check_unknowns_list(void);
79	–
80	–
81	–	/* client_init()
82	–	*
83	–	* inputs       - NONE
84	–	* output       - NONE
85	–	* side effects - initialize client free memory
86	–	*/
87	–	void
88	–	client_init(void)
89	–	{
90	–	/* start off the check ping event ..  -- adrian
91	–	* Every 30 seconds is plenty -- db
92	–	*/
93	–	client_pool = mp_pool_new(sizeof(struct Client), MP_CHUNK_SIZE_CLIENT);
94	–	lclient_pool = mp_pool_new(sizeof(struct LocalUser), MP_CHUNK_SIZE_LCLIENT);
95	–	eventAdd("check_pings", check_pings, NULL, 5);
96	–	}
67
68		/*
69		* make_client - create a new Client struct and set it to initial state.
#	Line 115 | Line 85 | make_client(struct Client *from)
85		{
86		struct Client *client_p = mp_pool_get(client_pool);
87
88	<	memset(client_p, 0, sizeof(*client_p));
119	<
120	<	if (from == NULL)
88	>	if (!from)
89		{
90		client_p->from                      = client_p; /* 'from' of local client is self! */
91		client_p->localClient               = mp_pool_get(lclient_pool);
124	–
125	–	memset(client_p->localClient, 0, sizeof(*client_p->localClient));
126	–
92		client_p->localClient->since        = CurrentTime;
93		client_p->localClient->lasttime     = CurrentTime;
94		client_p->localClient->firsttime    = CurrentTime;
#	Line 154 | Line 119 | make_client(struct Client *from)
119		static void
120		free_client(struct Client *client_p)
121		{
122	<	assert(client_p != NULL);
122	>	assert(client_p);
123		assert(client_p != &me);
124		assert(client_p->hnext == client_p);
125		assert(client_p->idhnext == client_p);
126		assert(client_p->channel.head == NULL);
127		assert(dlink_list_length(&client_p->channel) == 0);
128		assert(dlink_list_length(&client_p->whowas) == 0);
129	<	assert(!IsServer(client_p) || (IsServer(client_p) && client_p->serv));
129	>	assert(!IsServer(client_p) || client_p->serv);
130
131		MyFree(client_p->serv);
132		MyFree(client_p->certfp);
#	Line 196 | Line 161 | free_client(struct Client *client_p)
161		mp_pool_release(client_p);
162		}
163
199	–	/*
200	–	* check_pings - go through the local client list and check activity
201	–	* kill off stuff that should die
202	–	*
203	–	* inputs       - NOT USED (from event)
204	–	* output       - next time_t when check_pings() should be called again
205	–	* side effects -
206	–	*
207	–	*
208	–	* A PING can be sent to clients as necessary.
209	–	*
210	–	* Client/Server ping outs are handled.
211	–	*/
212	–
213	–	/*
214	–	* Addon from adrian. We used to call this after nextping seconds,
215	–	* however I've changed it to run once a second. This is only for
216	–	* PING timeouts, not K/etc-line checks (thanks dianora!). Having it
217	–	* run once a second makes life a lot easier - when a new client connects
218	–	* and they need a ping in 4 seconds, if nextping was set to 20 seconds
219	–	* we end up waiting 20 seconds. This is stupid. :-)
220	–	* I will optimise (hah!) check_pings() once I've finished working on
221	–	* tidying up other network IO evilnesses.
222	–	*     -- adrian
223	–	*/
224	–
225	–	static void
226	–	check_pings(void *notused)
227	–	{
228	–	check_pings_list(&local_client_list);
229	–	check_pings_list(&serv_list);
230	–	check_unknowns_list();
231	–	}
232	–
164		/* check_pings_list()
165		*
166		* inputs       - pointer to list to check
#	Line 239 | Line 170 | check_pings(void *notused)
170		static void
171		check_pings_list(dlink_list *list)
172		{
173	<	char scratch[IRCD_BUFSIZE];
173	>	char buf[IRCD_BUFSIZE] = "";
174		int ping = 0;      /* ping time value from client */
175	<	dlink_node *ptr = NULL, *next_ptr = NULL;
175	>	dlink_node *ptr = NULL, *ptr_next = NULL;
176
177	<	DLINK_FOREACH_SAFE(ptr, next_ptr, list->head)
177	>	DLINK_FOREACH_SAFE(ptr, ptr_next, list->head)
178		{
179		struct Client *client_p = ptr->data;
180
250	–	/*
251	–	** Note: No need to notify opers here. It's
252	–	** already done when "FLAGS_DEADSOCKET" is set.
253	–	*/
181		if (IsDead(client_p))
182	<	{
256	<	/* Ignore it, its been exited already */
257	<	continue;
258	<	}
182	>	continue;  /* Ignore it, its been exited already */
183
184		if (!IsRegistered(client_p))
185		ping = CONNECTTIMEOUT;
#	Line 267 | Line 191 | check_pings_list(dlink_list *list)
191		if (!IsPingSent(client_p))
192		{
193		/*
194	<	* if we havent PINGed the connection and we havent
194	>	* If we haven't PINGed the connection and we haven't
195		* heard from it in a while, PING it to make sure
196		* it is still alive.
197		*/
#	Line 295 | Line 219 | check_pings_list(dlink_list *list)
219		get_client_name(client_p, HIDE_IP));
220		}
221
222	<	snprintf(scratch, sizeof(scratch), "Ping timeout: %d seconds",
222	>	snprintf(buf, sizeof(buf), "Ping timeout: %d seconds",
223		(int)(CurrentTime - client_p->localClient->lasttime));
224	<	exit_client(client_p, &me, scratch);
224	>	exit_client(client_p, buf);
225		}
226		}
227		}
#	Line 313 | Line 237 | check_pings_list(dlink_list *list)
237		static void
238		check_unknowns_list(void)
239		{
240	<	dlink_node *ptr, *next_ptr;
240	>	dlink_node *ptr = NULL, *ptr_next = NULL;
241
242	<	DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head)
242	>	DLINK_FOREACH_SAFE(ptr, ptr_next, unknown_list.head)
243		{
244		struct Client *client_p = ptr->data;
245
#	Line 324 | Line 248 | check_unknowns_list(void)
248		* for > 30s, close them.
249		*/
250		if (IsAuthFinished(client_p) && (CurrentTime - client_p->localClient->firsttime) > 30)
251	<	exit_client(client_p, &me, "Registration timed out");
251	>	exit_client(client_p, "Registration timed out");
252		}
253		}
254
255	+	/*
256	+	* check_pings - go through the local client list and check activity
257	+	* kill off stuff that should die
258	+	*
259	+	* inputs       - NOT USED (from event)
260	+	* output       - next time_t when check_pings() should be called again
261	+	* side effects -
262	+	*
263	+	*
264	+	* A PING can be sent to clients as necessary.
265	+	*
266	+	* Client/Server ping outs are handled.
267	+	*/
268	+
269	+	/*
270	+	* Addon from adrian. We used to call this after nextping seconds,
271	+	* however I've changed it to run once a second. This is only for
272	+	* PING timeouts, not K/etc-line checks (thanks dianora!). Having it
273	+	* run once a second makes life a lot easier - when a new client connects
274	+	* and they need a ping in 4 seconds, if nextping was set to 20 seconds
275	+	* we end up waiting 20 seconds. This is stupid. :-)
276	+	* I will optimise (hah!) check_pings() once I've finished working on
277	+	* tidying up other network IO evilnesses.
278	+	*     -- adrian
279	+	*/
280	+
281	+	static void
282	+	check_pings(void *notused)
283	+	{
284	+	check_pings_list(&local_client_list);
285	+	check_pings_list(&local_server_list);
286	+	check_unknowns_list();
287	+	}
288	+
289		/* check_conf_klines()
290		*
291		* inputs       - NONE
#	Line 338 | Line 296 | check_unknowns_list(void)
296		void
297		check_conf_klines(void)
298		{
341	–	struct Client *client_p = NULL;       /* current local client_p being examined */
299		struct MaskItem *conf = NULL;
300	<	dlink_node *ptr, *next_ptr;
300	>	dlink_node *ptr = NULL, *ptr_next = NULL;
301
302	<	DLINK_FOREACH_SAFE(ptr, next_ptr, local_client_list.head)
302	>	DLINK_FOREACH_SAFE(ptr, ptr_next, local_client_list.head)
303		{
304	<	client_p = ptr->data;
304	>	struct Client *client_p = ptr->data;
305
306		/* If a client is already being exited
307		*/
308		if (IsDead(client_p) || !IsClient(client_p))
309		continue;
310
311	<	if ((conf = find_dline_conf(&client_p->localClient->ip,
312	<	client_p->localClient->aftype)) != NULL)
311	>	if ((conf = find_conf_by_address(NULL, &client_p->localClient->ip, CONF_DLINE,
312	>	client_p->localClient->aftype, NULL, NULL, 1)))
313		{
314	<	if (conf->type == CONF_EXEMPT)
358	<	continue;
359	<
360	<	ban_them(client_p, conf);
314	>	conf_try_ban(client_p, conf);
315		continue; /* and go examine next fd/client_p */
316		}
317
318	<	if (ConfigFileEntry.glines)
318	>	if (ConfigGeneral.glines)
319		{
320		if ((conf = find_conf_by_address(client_p->host, &client_p->localClient->ip,
321		CONF_GLINE, client_p->localClient->aftype,
322		client_p->username, NULL, 1)))
323		{
324	<	if (IsExemptKline(client_p) ||
371	<	IsExemptGline(client_p))
372	<	{
373	<	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
374	<	"GLINE over-ruled for %s, client is %sline_exempt",
375	<	get_client_name(client_p, HIDE_IP), IsExemptKline(client_p) ? "k" : "g");
376	<	continue;
377	<	}
378	<
379	<	ban_them(client_p, conf);
324	>	conf_try_ban(client_p, conf);
325		/* and go examine next fd/client_p */
326		continue;
327		}
#	Line 386 | Line 331 | check_conf_klines(void)
331		CONF_KLINE, client_p->localClient->aftype,
332		client_p->username, NULL, 1)))
333		{
334	<	if (IsExemptKline(client_p))
390	<	{
391	<	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
392	<	"KLINE over-ruled for %s, client is kline_exempt",
393	<	get_client_name(client_p, HIDE_IP));
394	<	continue;
395	<	}
396	<
397	<	ban_them(client_p, conf);
334	>	conf_try_ban(client_p, conf);
335		continue;
336		}
337
338		if ((conf = find_matching_name_conf(CONF_XLINE,  client_p->info,
339		NULL, NULL, 0)))
340		{
341	<	ban_them(client_p, conf);
341	>	conf_try_ban(client_p, conf);
342		continue;
343		}
344		}
345
346		/* also check the unknowns list for new dlines */
347	<	DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head)
347	>	DLINK_FOREACH_SAFE(ptr, ptr_next, unknown_list.head)
348		{
349	<	client_p = ptr->data;
349	>	struct Client *client_p = ptr->data;
350
351	<	if ((conf = find_dline_conf(&client_p->localClient->ip,
352	<	client_p->localClient->aftype)))
351	>	if ((conf = find_conf_by_address(NULL, &client_p->localClient->ip, CONF_DLINE,
352	>	client_p->localClient->aftype, NULL, NULL, 1)))
353		{
354	<	if (conf->type == CONF_EXEMPT)
355	<	continue;
419	<
420	<	exit_client(client_p, &me, "D-lined");
354	>	conf_try_ban(client_p, conf);
355	>	continue; /* and go examine next fd/client_p */
356		}
357		}
358		}
359
360		/*
361	<	* ban_them
361	>	* conf_try_ban
362		*
363		* inputs       - pointer to client to ban
364		*              - pointer to MaskItem
#	Line 431 | Line 366 | check_conf_klines(void)
366		* side effects - given client_p is banned
367		*/
368		void
369	<	ban_them(struct Client *client_p, struct MaskItem *conf)
369	>	conf_try_ban(struct Client *client_p, struct MaskItem *conf)
370		{
371		const char *user_reason = NULL;  /* What is sent to user */
372		const char *type_string = NULL;
#	Line 454 | Line 389 | ban_them(struct Client *client_p, struct
389		type_string = kline_string;
390		break;
391		case CONF_DLINE:
392	+	if (find_conf_by_address(NULL, &client_p->localClient->ip, CONF_EXEMPT,
393	+	client_p->localClient->aftype, NULL, NULL, 1))
394	+	return;
395		type_string = dline_string;
396		break;
397		case CONF_GLINE:
#	Line 465 | Line 403 | ban_them(struct Client *client_p, struct
403		get_client_name(client_p, HIDE_IP), IsExemptKline(client_p) ? "k" : "g");
404		return;
405		}
406	<
406	>
407		type_string = gline_string;
408		break;
409		case CONF_XLINE:
#	Line 483 | Line 421 | ban_them(struct Client *client_p, struct
421		type_string, get_client_name(client_p, HIDE_IP));
422
423		if (IsClient(client_p))
424	<	sendto_one(client_p, form_str(ERR_YOUREBANNEDCREEP),
487	<	me.name, client_p->name, user_reason);
424	>	sendto_one_numeric(client_p, &me, ERR_YOUREBANNEDCREEP, user_reason);
425
426	<	exit_client(client_p, &me, user_reason);
426	>	exit_client(client_p, user_reason);
427		}
428
429		/* update_client_exit_stats()
#	Line 523 | Line 460 | update_client_exit_stats(struct Client *
460		* side effects - find person by (nick)name
461		*/
462		struct Client *
463	<	find_person(const struct Client *client_p, const char *name)
463	>	find_person(const struct Client *const source_p, const char *name)
464		{
465		struct Client *target_p = NULL;
466
467		if (IsDigit(*name))
468		{
469	<	if (IsServer(client_p) || HasFlag(client_p, FLAGS_SERVICE))
469	>	if (IsServer(source_p->from))
470		target_p = hash_find_id(name);
471		}
472		else
#	Line 541 | Line 478 | find_person(const struct Client *client_
478		/*
479		* find_chasing - find the client structure for a nick name (name)
480		*      using history mechanism if necessary. If the client is not found,
481	<	*      an error message (NO SUCH NICK) is generated. If the client was found
545	<	*      through the history, chasing will be 1 and otherwise 0.
481	>	*      an error message (NO SUCH NICK) is generated.
482		*/
483		struct Client *
484	<	find_chasing(struct Client *source_p, const char *name, int *const chasing)
484	>	find_chasing(struct Client *source_p, const char *name)
485		{
486	<	struct Client *who = find_person(source_p->from, name);
551	<
552	<	if (chasing)
553	<	*chasing = 0;
486	>	struct Client *who = find_person(source_p, name);
487
488		if (who)
489		return who;
#	Line 559 | Line 492 | find_chasing(struct Client *source_p, co
492		return NULL;
493
494		if ((who = whowas_get_history(name,
495	<	(time_t)ConfigFileEntry.kill_chase_time_limit))
495	>	(time_t)ConfigGeneral.kill_chase_time_limit))
496		== NULL)
497		{
498	<	sendto_one(source_p, form_str(ERR_NOSUCHNICK),
566	<	me.name, source_p->name, name);
498	>	sendto_one_numeric(source_p, &me, ERR_NOSUCHNICK, name);
499		return NULL;
500		}
501
570	–	if (chasing)
571	–	*chasing = 1;
572	–
502		return who;
503		}
504
#	Line 582 | Line 511 | find_chasing(struct Client *source_p, co
511		*        But, this can be used to any client structure.
512		*
513		* NOTE 1:
514	<	*        Watch out the allocation of "nbuf", if either source_p->name
514	>	*        Watch out the allocation of "buf", if either source_p->name
515		*        or source_p->sockhost gets changed into pointers instead of
516		*        directly allocated within the structure...
517		*
518		* NOTE 2:
519		*        Function return either a pointer to the structure (source_p) or
520	<	*        to internal buffer (nbuf). *NEVER* use the returned pointer
520	>	*        to internal buffer (buf). *NEVER* use the returned pointer
521		*        to modify what it points!!!
522		*/
523		const char *
524	<	get_client_name(const struct Client *client, enum addr_mask_type type)
524	>	get_client_name(const struct Client *client_p, enum addr_mask_type type)
525		{
526	<	static char nbuf[HOSTLEN * 2 + USERLEN + 5];
526	>	static char buf[HOSTLEN * 2 + USERLEN + 5];
527
528	<	assert(client != NULL);
528	>	assert(client_p);
529
530	<	if (!MyConnect(client))
531	<	return client->name;
530	>	if (!MyConnect(client_p))
531	>	return client_p->name;
532
533	<	if (IsServer(client) || IsConnecting(client) || IsHandshake(client))
533	>	if (IsServer(client_p) || IsConnecting(client_p) || IsHandshake(client_p))
534		{
535	<	if (!irccmp(client->name, client->host))
536	<	return client->name;
535	>	if (!irccmp(client_p->name, client_p->host))
536	>	return client_p->name;
537		else if (ConfigServerHide.hide_server_ips)
538		type = MASK_IP;
539		}
540
541	<	if (ConfigFileEntry.hide_spoof_ips)
542	<	if (type == SHOW_IP && IsIPSpoof(client))
541	>	if (ConfigGeneral.hide_spoof_ips)
542	>	if (IsIPSpoof(client_p) && type == SHOW_IP)
543		type = MASK_IP;
544
545		/* And finally, let's get the host information, ip or name */
546		switch (type)
547		{
548		case SHOW_IP:
549	<	snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]",
550	<	client->name,
551	<	client->username, client->sockhost);
549	>	snprintf(buf, sizeof(buf), "%s[%s@%s]",
550	>	client_p->name,
551	>	client_p->username, client_p->sockhost);
552		break;
553		case MASK_IP:
554	<	if (client->localClient->aftype == AF_INET)
555	<	snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]",
556	<	client->name, client->username);
554	>	if (client_p->localClient->aftype == AF_INET)
555	>	snprintf(buf, sizeof(buf), "%s[%s@255.255.255.255]",
556	>	client_p->name, client_p->username);
557		else
558	<	snprintf(nbuf, sizeof(nbuf), "%s[%s@ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]",
559	<	client->name, client->username);
558	>	snprintf(buf, sizeof(buf), "%s[%s@ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]",
559	>	client_p->name, client_p->username);
560		break;
561		default:
562	<	snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]",
563	<	client->name,
564	<	client->username, client->host);
562	>	snprintf(buf, sizeof(buf), "%s[%s@%s]",
563	>	client_p->name,
564	>	client_p->username, client_p->host);
565		}
566
567	<	return nbuf;
567	>	return buf;
568		}
569
570		void
#	Line 658 | Line 587 | free_exited_clients(void)
587		* The only messages generated are QUITs on channels.
588		*/
589		static void
590	<	exit_one_client(struct Client *source_p, const char *quitmsg)
590	>	exit_one_client(struct Client *source_p, const char *comment)
591		{
592	<	dlink_node *lp = NULL, *next_lp = NULL;
592	>	dlink_node *ptr = NULL, *ptr_next = NULL;
593
594		assert(!IsMe(source_p));
595	+	assert(source_p != &me);
596
597		if (IsClient(source_p))
598		{
599	<	if (source_p->servptr->serv != NULL)
600	<	dlinkDelete(&source_p->lnode, &source_p->servptr->serv->client_list);
599	>	dlinkDelete(&source_p->lnode, &source_p->servptr->serv->client_list);
600	>	dlinkDelete(&source_p->node, &global_client_list);
601
602		/*
603		* If a person is on a channel, send a QUIT notice
#	Line 677 | Line 607 | exit_one_client(struct Client *source_p,
607		*/
608		sendto_common_channels_local(source_p, 0, 0, ":%s!%s@%s QUIT :%s",
609		source_p->name, source_p->username,
610	<	source_p->host, quitmsg);
611	<	DLINK_FOREACH_SAFE(lp, next_lp, source_p->channel.head)
612	<	remove_user_from_channel(lp->data);
610	>	source_p->host, comment);
611	>	DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->channel.head)
612	>	remove_user_from_channel(ptr->data);
613
614		whowas_add_history(source_p, 0);
615		whowas_off_history(source_p);
#	Line 689 | Line 619 | exit_one_client(struct Client *source_p,
619		if (MyConnect(source_p))
620		{
621		/* Clean up invitefield */
622	<	DLINK_FOREACH_SAFE(lp, next_lp, source_p->localClient->invited.head)
623	<	del_invite(lp->data, source_p);
622	>	DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->localClient->invited.head)
623	>	del_invite(ptr->data, source_p);
624
625		del_all_accepts(source_p);
626		}
#	Line 698 | Line 628 | exit_one_client(struct Client *source_p,
628		else if (IsServer(source_p))
629		{
630		dlinkDelete(&source_p->lnode, &source_p->servptr->serv->server_list);
631	+	dlinkDelete(&source_p->node, &global_client_list);
632
633	<	if ((lp = dlinkFindDelete(&global_serv_list, source_p)) != NULL)
634	<	free_dlink_node(lp);
633	>	if ((ptr = dlinkFindDelete(&global_server_list, source_p)))
634	>	free_dlink_node(ptr);
635		}
636
637		/* Remove source_p from the client lists */
638	<	if (HasID(source_p))
638	>	if (source_p->id[0])
639		hash_del_id(source_p);
640		if (source_p->name[0])
641		hash_del_client(source_p);
#	Line 712 | Line 643 | exit_one_client(struct Client *source_p,
643		if (IsUserHostIp(source_p))
644		delete_user_host(source_p->username, source_p->host, !MyConnect(source_p));
645
715	–	/* remove from global client list
716	–	* NOTE: source_p->node.next cannot be NULL if the client is added
717	–	*       to global_client_list (there is always &me at its end)
718	–	*/
719	–	if (source_p != NULL && source_p->node.next != NULL)
720	–	dlinkDelete(&source_p->node, &global_client_list);
721	–
646		update_client_exit_stats(source_p);
647
648		/* Check to see if the client isn't already on the dead list */
#	Line 729 | Line 653 | exit_one_client(struct Client *source_p,
653		dlinkAdd(source_p, make_dlink_node(), &dead_list);
654		}
655
732	–	/* Recursively send QUITs and SQUITs for source_p and all its dependent clients
733	–	* and servers to those servers that need them.  A server needs the client
734	–	* QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
735	–	* isn't getting the SQUIT because of @#(*&@)# hostmasking.  With TS4, once
736	–	* a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
737	–	* on that one -orabidoo
738	–	*
739	–	* This is now called on each local server -adx
740	–	*/
741	–	static void
742	–	recurse_send_quits(struct Client *original_source_p, struct Client *source_p,
743	–	struct Client *from, struct Client *to, const char *comment,
744	–	const char *splitstr)
745	–	{
746	–	dlink_node *ptr, *next;
747	–	struct Client *target_p;
748	–
749	–	assert(to != source_p);  /* should be already removed from serv_list */
750	–
751	–	/* If this server can handle quit storm (QS) removal
752	–	* of dependents, just send the SQUIT
753	–	*/
754	–	if (!IsCapable(to, CAP_QS))
755	–	DLINK_FOREACH_SAFE(ptr, next, source_p->serv->client_list.head)
756	–	{
757	–	target_p = ptr->data;
758	–	sendto_one(to, ":%s QUIT :%s", target_p->name, splitstr);
759	–	}
760	–
761	–	DLINK_FOREACH_SAFE(ptr, next, source_p->serv->server_list.head)
762	–	recurse_send_quits(original_source_p, ptr->data, from, to,
763	–	comment, splitstr);
764	–
765	–	if ((source_p == original_source_p && to != from) ||
766	–	!IsCapable(to, CAP_QS))
767	–	{
768	–	/* don't use a prefix here - we have to be 100% sure the message
769	–	* will be accepted without Unknown prefix etc.. */
770	–	sendto_one(to, "SQUIT %s :%s", ID_or_name(source_p, to), comment);
771	–	}
772	–	}
773	–
656		/*
657		* Remove all clients that depend on source_p; assumes all (S)QUITs have
658		* already been sent.  we make sure to exit a server's dependent clients
#	Line 778 | Line 660 | recurse_send_quits(struct Client *origin
660		* actually removing things off llists.   tweaked from +CSr31  -orabidoo
661		*/
662		static void
663	<	recurse_remove_clients(struct Client *source_p, const char *quitmsg)
663	>	recurse_remove_clients(struct Client *source_p, const char *comment)
664		{
665	<	dlink_node *ptr, *next;
665	>	dlink_node *ptr = NULL, *ptr_next = NULL;
666
667	<	DLINK_FOREACH_SAFE(ptr, next, source_p->serv->client_list.head)
668	<	exit_one_client(ptr->data, quitmsg);
667	>	DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->client_list.head)
668	>	exit_one_client(ptr->data, comment);
669
670	<	DLINK_FOREACH_SAFE(ptr, next, source_p->serv->server_list.head)
670	>	DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->server_list.head)
671		{
672	<	recurse_remove_clients(ptr->data, quitmsg);
673	<	exit_one_client(ptr->data, quitmsg);
672	>	recurse_remove_clients(ptr->data, comment);
673	>	exit_one_client(ptr->data, comment);
674		}
675		}
676
677		/*
796	–	** Remove *everything* that depends on source_p, from all lists, and sending
797	–	** all necessary QUITs and SQUITs.  source_p itself is still on the lists,
798	–	** and its SQUITs have been sent except for the upstream one  -orabidoo
799	–	*/
800	–	static void
801	–	remove_dependents(struct Client *source_p, struct Client *from,
802	–	const char *comment, const char *splitstr)
803	–	{
804	–	dlink_node *ptr = NULL;
805	–
806	–	DLINK_FOREACH(ptr, serv_list.head)
807	–	recurse_send_quits(source_p, source_p, from, ptr->data,
808	–	comment, splitstr);
809	–
810	–	recurse_remove_clients(source_p, splitstr);
811	–	}
812	–
813	–	/*
678		* exit_client - exit a client of any type. Generally, you can use
679		* this on any struct Client, regardless of its state.
680		*
681		* Note, you shouldn't exit remote _users_ without first doing
682		* AddFlag(x, FLAGS_KILLED) and propagating a kill or similar message.
683	+	*
684		* However, it is perfectly correct to call exit_client to force a _server_
685		* quit (either local or remote one).
686		*
687	+	*
688		* inputs:       - a client pointer that is going to be exited
823	–	*               - for servers, the second argument is a pointer to who
824	–	*                 is firing the server. This side won't get any generated
825	–	*                 messages. NEVER NULL!
689		* output:       none
690		* side effects: the client is delinked from all lists, disconnected,
691		*               and the rest of IRC network is notified of the exit.
692		*               Client memory is scheduled to be freed
693		*/
694		void
695	<	exit_client(struct Client *source_p, struct Client *from, const char *comment)
695	>	exit_client(struct Client *source_p, const char *comment)
696		{
697		dlink_node *m = NULL;
698
699	+	assert(!IsMe(source_p));
700	+	assert(source_p != &me);
701	+
702		if (MyConnect(source_p))
703		{
704		/* DO NOT REMOVE. exit_client can be called twice after a failed
#	Line 843 | Line 709 | exit_client(struct Client *source_p, str
709
710		SetClosing(source_p);
711
712	<	if (IsIpHash(source_p))
713	<	remove_one_ip(&source_p->localClient->ip);
712	>	if (HasFlag(source_p, FLAGS_IPHASH))
713	>	{
714	>	DelFlag(source_p, FLAGS_IPHASH);
715	>	ipcache_remove_address(&source_p->localClient->ip);
716	>	}
717
718		delete_auth(&source_p->localClient->auth);
719
#	Line 868 | Line 737 | exit_client(struct Client *source_p, str
737		Count.local--;
738
739		if (HasUMode(source_p, UMODE_OPER))
740	<	if ((m = dlinkFindDelete(&oper_list, source_p)) != NULL)
740	>	if ((m = dlinkFindDelete(&oper_list, source_p)))
741		free_dlink_node(m);
742
743		assert(dlinkFind(&local_client_list, source_p));
744		dlinkDelete(&source_p->localClient->lclient_node, &local_client_list);
745
746	<	if (source_p->localClient->list_task != NULL)
747	<	free_list_task(source_p->localClient->list_task, source_p);
746	>	if (source_p->localClient->list_task)
747	>	free_list_task(source_p);
748
749		watch_del_watch_list(source_p);
750		sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE,
751		"Client exiting: %s (%s@%s) [%s] [%s]",
752		source_p->name, source_p->username, source_p->host, comment,
753	<	ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
753	>	ConfigGeneral.hide_spoof_ips && IsIPSpoof(source_p) ?
754		"255.255.255.255" : source_p->sockhost);
755		ilog(LOG_TYPE_USER, "%s (%3u:%02u:%02u): %s!%s@%s %llu/%llu",
756		myctime(source_p->localClient->firsttime), (unsigned int)(on_for / 3600),
#	Line 895 | Line 764 | exit_client(struct Client *source_p, str
764		assert(Count.myserver > 0);
765		--Count.myserver;
766
767	<	assert(dlinkFind(&serv_list, source_p));
768	<	dlinkDelete(&source_p->localClient->lclient_node, &serv_list);
900	<	unset_chcap_usage_counts(source_p);
767	>	assert(dlinkFind(&local_server_list, source_p));
768	>	dlinkDelete(&source_p->localClient->lclient_node, &local_server_list);
769		}
770
771		if (!IsDead(source_p))
772		{
773		if (IsServer(source_p))
774		{
775	<	/* for them, we are exiting the network */
776	<	sendto_one(source_p, ":%s SQUIT %s :%s",
777	<	ID_or_name(from, source_p), me.name, comment);
775	>	if (!HasFlag(source_p, FLAGS_SQUIT))
776	>	{
777	>	/* for them, we are exiting the network */
778	>	sendto_one(source_p, ":%s SQUIT %s :%s",
779	>	me.id, me.id, comment);
780	>	}
781		}
782
783		sendto_one(source_p, "ERROR :Closing Link: %s (%s)",
784		source_p->host, comment);
785		}
786
916	–	/*
917	–	** Currently only server connections can have
918	–	** depending remote clients here, but it does no
919	–	** harm to check for all local clients. In
920	–	** future some other clients than servers might
921	–	** have remotes too...
922	–	**
923	–	** Close the Client connection first and mark it
924	–	** so that no messages are attempted to send to it.
925	–	** Remember it makes source_p->from == NULL.
926	–	*/
787		close_connection(source_p);
788		}
789		else if (IsClient(source_p) && HasFlag(source_p->servptr, FLAGS_EOB))
#	Line 934 | Line 794 | exit_client(struct Client *source_p, str
794
795		if (IsServer(source_p))
796		{
797	<	char splitstr[HOSTLEN + HOSTLEN + 2];
797	>	char splitstr[HOSTLEN + HOSTLEN + 2] = "";
798
799		/* This shouldn't ever happen */
800	<	assert(source_p->serv != NULL && source_p->servptr != NULL);
800	>	assert(source_p->serv && source_p->servptr);
801
802		if (ConfigServerHide.hide_servers)
803		/*
804		* Set netsplit message to "*.net *.split" to still show
805		* that its a split, but hide the servers splitting
806		*/
807	<	strcpy(splitstr, "*.net *.split");
807	>	strlcpy(splitstr, "*.net *.split", sizeof(splitstr));
808		else
809		snprintf(splitstr, sizeof(splitstr), "%s %s",
810		source_p->servptr->name, source_p->name);
811
812	<	remove_dependents(source_p, from->from, comment, splitstr);
812	>	/* Send SQUIT for source_p in every direction. source_p is already off of local_server_list here */
813	>	if (!HasFlag(source_p, FLAGS_SQUIT))
814	>	sendto_server(NULL, NOCAPS, NOCAPS, "SQUIT %s :%s", source_p->id, comment);
815	>
816	>	/* Now exit the clients internally */
817	>	recurse_remove_clients(source_p, splitstr);
818
819	<	if (source_p->servptr == &me)
819	>	if (MyConnect(source_p))
820		{
821		sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
822		"%s was connected for %d seconds.  %llu/%llu sendK/recvK.",
#	Line 965 | Line 830 | exit_client(struct Client *source_p, str
830		}
831		}
832		else if (IsClient(source_p) && !HasFlag(source_p, FLAGS_KILLED))
833	<	{
834	<	sendto_server(from->from, CAP_TS6, NOCAPS,
970	<	":%s QUIT :%s", ID(source_p), comment);
971	<	sendto_server(from->from, NOCAPS, CAP_TS6,
972	<	":%s QUIT :%s", source_p->name, comment);
973	<	}
833	>	sendto_server(source_p->from, NOCAPS, NOCAPS, ":%s QUIT :%s",
834	>	source_p->id, comment);
835
836		/* The client *better* be off all of the lists */
837		assert(dlinkFind(&unknown_list, source_p) == NULL);
838		assert(dlinkFind(&local_client_list, source_p) == NULL);
839	<	assert(dlinkFind(&serv_list, source_p) == NULL);
839	>	assert(dlinkFind(&local_server_list, source_p) == NULL);
840		assert(dlinkFind(&oper_list, source_p) == NULL);
841
842		exit_one_client(source_p, comment);
#	Line 1067 | Line 928 | dead_link_on_read(struct Client *client_
928		snprintf(errmsg, sizeof(errmsg), "Read error: %s",
929		strerror(current_error));
930
931	<	exit_client(client_p, &me, errmsg);
931	>	exit_client(client_p, errmsg);
932		}
933
934		void
#	Line 1098 | Line 959 | exit_aborted_clients(void)
959		else
960		notice = "Write error: connection closed";
961
962	<	exit_client(target_p, &me, notice);
962	>	exit_client(target_p, notice);
963		free_dlink_node(ptr);
964		}
965		}
#	Line 1178 | Line 1039 | accept_message(struct Client *source,
1039		void
1040		del_all_accepts(struct Client *client_p)
1041		{
1042	<	dlink_node *ptr = NULL, *next_ptr = NULL;
1042	>	dlink_node *ptr = NULL, *ptr_next = NULL;
1043
1044	<	DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->localClient->acceptlist.head)
1044	>	DLINK_FOREACH_SAFE(ptr, ptr_next, client_p->localClient->acceptlist.head)
1045		del_accept(ptr->data, client_p);
1046		}
1047
#	Line 1209 | Line 1070 | idle_time_get(const struct Client *sourc
1070		else
1071		idle = CurrentTime - target_p->localClient->last_privmsg;
1072
1073	<	if (max_idle == 0)
1073	>	if (!max_idle)
1074		idle = 0;
1075		else
1076		idle %= max_idle;
#	Line 1219 | Line 1080 | idle_time_get(const struct Client *sourc
1080
1081		return idle;
1082		}
1083	+
1084	+	/* client_init()
1085	+	*
1086	+	* inputs       - NONE
1087	+	* output       - NONE
1088	+	* side effects - initialize client free memory
1089	+	*/
1090	+	void
1091	+	client_init(void)
1092	+	{
1093	+	static struct event event_ping =
1094	+	{
1095	+	.name = "check_pings",
1096	+	.handler = check_pings,
1097	+	.when = 5
1098	+	};
1099	+
1100	+	client_pool = mp_pool_new(sizeof(struct Client), MP_CHUNK_SIZE_CLIENT);
1101	+	lclient_pool = mp_pool_new(sizeof(struct LocalUser), MP_CHUNK_SIZE_LCLIENT);
1102	+	event_add(&event_ping, NULL);
1103	+	}

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