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root/svn/ircd-hybrid/trunk/src/client.c
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Comparing:
ircd-hybrid-8/src/client.c (file contents), Revision 1474 by michael, Sun Jul 22 14:44:07 2012 UTC vs.
ircd-hybrid/trunk/src/client.c (file contents), Revision 5985 by michael, Tue May 26 18:52:42 2015 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) 1997-2015 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 16 | Line 15
15   *
16   *  You should have received a copy of the GNU General Public License
17   *  along with this program; if not, write to the Free Software
18 < *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
18 > *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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"
49 #include "balloc.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  
55 dlink_list listing_client_list = { NULL, NULL, 0 };
56 /* Pointer to beginning of Client list */
57 dlink_list global_client_list = {NULL, NULL, 0};
58 /* unknown/client pointer lists */
59 dlink_list unknown_list = {NULL, NULL, 0};
60 dlink_list local_client_list = {NULL, NULL, 0};
61 dlink_list serv_list = {NULL, NULL, 0};
62 dlink_list global_serv_list = {NULL, NULL, 0};
63 dlink_list oper_list = {NULL, NULL, 0};
64
65 static EVH check_pings;
54  
55 < static BlockHeap *client_heap  = NULL;
56 < static BlockHeap *lclient_heap = NULL;
57 <
58 < static dlink_list dead_list  = { NULL, NULL, 0};
59 < 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, *connection_pool;
64 + static dlink_list dead_list, abort_list;
65   static dlink_node *eac_next;  /* next aborted client to exit */
66  
75 static void check_pings_list(dlink_list *);
76 static void check_unknowns_list(void);
77 static void ban_them(struct Client *, struct ConfItem *);
78
79
80 /* init_client()
81 *
82 * inputs       - NONE
83 * output       - NONE
84 * side effects - initialize client free memory
85 */
86 void
87 init_client(void)
88 {
89  /* start off the check ping event ..  -- adrian
90   * Every 30 seconds is plenty -- db
91   */
92  client_heap = BlockHeapCreate("client", sizeof(struct Client), CLIENT_HEAP_SIZE);
93  lclient_heap = BlockHeapCreate("local client", sizeof(struct LocalUser), LCLIENT_HEAP_SIZE);
94  eventAdd("check_pings", check_pings, NULL, 5);
95 }
67  
68   /*
69   * make_client - create a new Client struct and set it to initial state.
# Line 112 | Line 83 | init_client(void)
83   struct Client *
84   make_client(struct Client *from)
85   {
86 <  struct Client *client_p = BlockHeapAlloc(client_heap);
86 >  struct Client *const client_p = mp_pool_get(client_pool);
87  
88 <  if (from == NULL)
88 >  if (!from)
89    {
90 <    client_p->from                      = client_p; /* 'from' of local client is self! */
91 <    client_p->localClient               = BlockHeapAlloc(lclient_heap);
92 <    client_p->localClient->since        = CurrentTime;
93 <    client_p->localClient->lasttime     = CurrentTime;
94 <    client_p->localClient->firsttime    = CurrentTime;
95 <    client_p->localClient->registration = REG_INIT;
90 >    client_p->from = client_p;  /* 'from' of local client is self! */
91 >    client_p->connection = mp_pool_get(connection_pool);
92 >    client_p->connection->since = CurrentTime;
93 >    client_p->connection->lasttime = CurrentTime;
94 >    client_p->connection->firsttime = CurrentTime;
95 >    client_p->connection->registration = REG_INIT;
96  
97      /* as good a place as any... */
98 <    dlinkAdd(client_p, &client_p->localClient->lclient_node, &unknown_list);
98 >    dlinkAdd(client_p, &client_p->connection->lclient_node, &unknown_list);
99    }
100    else
101 <    client_p->from = from; /* 'from' of local client is self! */
101 >    client_p->from = from;
102  
103    client_p->idhnext = client_p;
104 <  client_p->hnext  = client_p;
105 <  client_p->status = STAT_UNKNOWN;
104 >  client_p->hnext = client_p;
105 >  SetUnknown(client_p);
106    strcpy(client_p->username, "unknown");
107 +  strcpy(client_p->account, "*");
108  
109    return client_p;
110   }
# Line 147 | Line 119 | make_client(struct Client *from)
119   static void
120   free_client(struct Client *client_p)
121   {
150  assert(client_p != NULL);
122    assert(client_p != &me);
123    assert(client_p->hnext == client_p);
124    assert(client_p->idhnext == client_p);
125    assert(client_p->channel.head == NULL);
126    assert(dlink_list_length(&client_p->channel) == 0);
127    assert(dlink_list_length(&client_p->whowas) == 0);
128 <  assert(!IsServer(client_p) || IsServer(client_p) && client_p->serv);
128 >  assert(dlink_list_length(&client_p->svstags) == 0);
129  
159  MyFree(client_p->away);
130    MyFree(client_p->serv);
131 +  MyFree(client_p->certfp);
132  
133    if (MyConnect(client_p))
134    {
135 <    assert(client_p->localClient->invited.head == NULL);
136 <    assert(dlink_list_length(&client_p->localClient->invited) == 0);
137 <    assert(dlink_list_length(&client_p->localClient->watches) == 0);
135 >    assert(client_p->connection->invited.head == NULL);
136 >    assert(dlink_list_length(&client_p->connection->invited) == 0);
137 >    assert(dlink_list_length(&client_p->connection->watches) == 0);
138      assert(IsClosing(client_p) && IsDead(client_p));
139  
140 <    MyFree(client_p->localClient->response);
141 <    MyFree(client_p->localClient->auth_oper);
140 >    MyFree(client_p->connection->challenge_response);
141 >    client_p->connection->challenge_response = NULL;
142 >    MyFree(client_p->connection->challenge_operator);
143 >    client_p->connection->challenge_operator = NULL;
144  
145      /*
146 <     * clean up extra sockets from P-lines which have been discarded.
146 >     * Clean up extra sockets from listen {} blocks which have been discarded.
147       */
148 <    if (client_p->localClient->listener)
148 >    if (client_p->connection->listener)
149      {
150 <      assert(0 < client_p->localClient->listener->ref_count);
151 <      if (0 == --client_p->localClient->listener->ref_count &&
179 <          !client_p->localClient->listener->active)
180 <        free_listener(client_p->localClient->listener);
150 >      listener_release(client_p->connection->listener);
151 >      client_p->connection->listener = NULL;
152      }
153  
154 <    dbuf_clear(&client_p->localClient->buf_recvq);
155 <    dbuf_clear(&client_p->localClient->buf_sendq);
154 >    dbuf_clear(&client_p->connection->buf_recvq);
155 >    dbuf_clear(&client_p->connection->buf_sendq);
156  
157 <    BlockHeapFree(lclient_heap, client_p->localClient);
157 >    mp_pool_release(client_p->connection);
158    }
159  
160 <  BlockHeapFree(client_heap, client_p);
160 >  mp_pool_release(client_p);
161   }
162  
163 < /*
164 < * check_pings - go through the local client list and check activity
165 < * kill off stuff that should die
166 < *
167 < * inputs       - NOT USED (from event)
168 < * output       - next time_t when check_pings() should be called again
198 < * side effects -
199 < *
200 < *
201 < * A PING can be sent to clients as necessary.
202 < *
203 < * Client/Server ping outs are handled.
204 < */
163 > void
164 > client_attach_svstag(struct Client *client_p, unsigned int numeric,
165 >                     const char *umodes, const char *const tag)
166 > {
167 >  struct ServicesTag *svstag = NULL;
168 >  const struct user_modes *tab = NULL;
169  
170 < /*
171 < * Addon from adrian. We used to call this after nextping seconds,
208 < * however I've changed it to run once a second. This is only for
209 < * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
210 < * run once a second makes life a lot easier - when a new client connects
211 < * and they need a ping in 4 seconds, if nextping was set to 20 seconds
212 < * we end up waiting 20 seconds. This is stupid. :-)
213 < * I will optimise (hah!) check_pings() once I've finished working on
214 < * tidying up other network IO evilnesses.
215 < *     -- adrian
216 < */
170 >  if (numeric >= ERR_LAST_ERR_MSG || *umodes != '+')
171 >    return;
172  
173 < static void
174 < check_pings(void *notused)
175 < {              
176 <  check_pings_list(&local_client_list);
177 <  check_pings_list(&serv_list);
178 <  check_unknowns_list();
173 >  svstag = MyCalloc(sizeof(*svstag));
174 >  svstag->numeric = numeric;
175 >  svstag->tag = xstrdup(tag);
176 >
177 >  for (const char *m = umodes + 1; *m; ++m)
178 >    if ((tab = umode_map[(unsigned char)*m]))
179 >      svstag->umodes |= tab->flag;
180 >
181 >  if (numeric != RPL_WHOISOPERATOR)
182 >    dlinkAddTail(svstag, &svstag->node, &client_p->svstags);
183 >  else
184 >    dlinkAdd(svstag, &svstag->node, &client_p->svstags);
185 > }
186 >
187 > void
188 > client_clear_svstags(struct Client *client_p)
189 > {
190 >  dlink_node *node = NULL, *node_next = NULL;
191 >
192 >  DLINK_FOREACH_SAFE(node, node_next, client_p->svstags.head)
193 >  {
194 >    struct ServicesTag *svstag = node->data;
195 >
196 >    dlinkDelete(&svstag->node, &client_p->svstags);
197 >    MyFree(svstag->tag);
198 >    MyFree(svstag);
199 >  }
200   }
201  
202   /* check_pings_list()
203   *
204   * inputs       - pointer to list to check
205   * output       - NONE
206 < * side effects -
206 > * side effects -
207   */
208   static void
209   check_pings_list(dlink_list *list)
210   {
211 <  char scratch[32];        /* way too generous but... */
212 <  struct Client *client_p; /* current local client_p being examined */
213 <  int ping, pingwarn;      /* ping time value from client */
238 <  dlink_node *ptr, *next_ptr;
211 >  char buf[IRCD_BUFSIZE] = "";
212 >  int ping = 0;      /* ping time value from client */
213 >  dlink_node *node = NULL, *node_next = NULL;
214  
215 <  DLINK_FOREACH_SAFE(ptr, next_ptr, list->head)
215 >  DLINK_FOREACH_SAFE(node, node_next, list->head)
216    {
217 <    client_p = ptr->data;
217 >    struct Client *client_p = node->data;
218  
244    /*
245    ** Note: No need to notify opers here. It's
246    ** already done when "FLAGS_DEADSOCKET" is set.
247    */
219      if (IsDead(client_p))
220 <    {
250 <      /* Ignore it, its been exited already */
251 <      continue;
252 <    }
253 <
254 <    if (client_p->localClient->reject_delay > 0)
255 <    {
256 <      if (client_p->localClient->reject_delay <= CurrentTime)
257 <        exit_client(client_p, &me, "Rejected");
258 <      continue;
259 <    }
220 >      continue;  /* Ignore it, its been exited already */
221  
222      if (!IsRegistered(client_p))
223 <      ping = CONNECTTIMEOUT, pingwarn = 0;
223 >      ping = CONNECTTIMEOUT;
224      else
225 <      ping = get_client_ping(client_p, &pingwarn);
225 >      ping = get_client_ping(&client_p->connection->confs);
226  
227 <    if (ping < CurrentTime - client_p->localClient->lasttime)
227 >    if (ping < CurrentTime - client_p->connection->lasttime)
228      {
229        if (!IsPingSent(client_p))
230        {
231 <        /*
232 <         * if we havent PINGed the connection and we havent
233 <         * heard from it in a while, PING it to make sure
234 <         * it is still alive.
235 <         */
236 <        SetPingSent(client_p);
237 <        ClearPingWarning(client_p);
238 <        client_p->localClient->lasttime = CurrentTime - ping;
278 <        sendto_one(client_p, "PING :%s", ID_or_name(&me, client_p));
231 >        /*
232 >         * If we haven't PINGed the connection and we haven't
233 >         * heard from it in a while, PING it to make sure
234 >         * it is still alive.
235 >         */
236 >        SetPingSent(client_p);
237 >        client_p->connection->lasttime = CurrentTime - ping;
238 >        sendto_one(client_p, "PING :%s", ID_or_name(&me, client_p));
239        }
240        else
241        {
242 <        if (CurrentTime - client_p->localClient->lasttime >= 2 * ping)
242 >        if (CurrentTime - client_p->connection->lasttime >= 2 * ping)
243          {
244            /*
245             * If the client/server hasn't talked to us in 2*ping seconds
246             * and it has a ping time, then close its connection.
247             */
248            if (IsServer(client_p) || IsHandshake(client_p))
249 <          {
250 <            sendto_realops_flags(UMODE_ALL, L_ADMIN,
251 <                                 "No response from %s, closing link",
252 <                                 get_client_name(client_p, HIDE_IP));
253 <            sendto_realops_flags(UMODE_ALL, L_OPER,
254 <                                 "No response from %s, closing link",
255 <                                 get_client_name(client_p, MASK_IP));
256 <            ilog(LOG_TYPE_IRCD, "No response from %s, closing link",
257 <                 get_client_name(client_p, HIDE_IP));
258 <          }
259 <
260 <          snprintf(scratch, sizeof(scratch), "Ping timeout: %d seconds",
261 <                   (int)(CurrentTime - client_p->localClient->lasttime));
262 <          exit_client(client_p, &me, scratch);
303 <        }
304 <        else if (!IsPingWarning(client_p) && pingwarn > 0 &&
305 <                 (IsServer(client_p) || IsHandshake(client_p)) &&
306 <                 CurrentTime - client_p->localClient->lasttime >= ping + pingwarn)
307 <        {
308 <          /*
309 <           * If the server hasn't replied in pingwarn seconds after sending
310 <           * the PING, notify the opers so that they are aware of the problem.
311 <           */
312 <          SetPingWarning(client_p);
313 <          sendto_realops_flags(UMODE_ALL, L_ADMIN,
314 <                               "Warning, no response from %s in %d seconds",
315 <                               get_client_name(client_p, HIDE_IP), pingwarn);
316 <          sendto_realops_flags(UMODE_ALL, L_OPER,
317 <                               "Warning, no response from %s in %d seconds",
318 <                               get_client_name(client_p, MASK_IP), pingwarn);
319 <          ilog(LOG_TYPE_IRCD, "No response from %s in %d seconds",
320 <               get_client_name(client_p, HIDE_IP), pingwarn);
249 >          {
250 >            sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
251 >                                 "No response from %s, closing link",
252 >                                 get_client_name(client_p, HIDE_IP));
253 >            sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
254 >                                 "No response from %s, closing link",
255 >                                 get_client_name(client_p, MASK_IP));
256 >            ilog(LOG_TYPE_IRCD, "No response from %s, closing link",
257 >                 get_client_name(client_p, HIDE_IP));
258 >          }
259 >
260 >          snprintf(buf, sizeof(buf), "Ping timeout: %d seconds",
261 >                   (int)(CurrentTime - client_p->connection->lasttime));
262 >          exit_client(client_p, buf);
263          }
264        }
265      }
# Line 333 | Line 275 | check_pings_list(dlink_list *list)
275   static void
276   check_unknowns_list(void)
277   {
278 <  dlink_node *ptr, *next_ptr;
278 >  dlink_node *node = NULL, *node_next = NULL;
279  
280 <  DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head)
280 >  DLINK_FOREACH_SAFE(node, node_next, unknown_list.head)
281    {
282 <    struct Client *client_p = ptr->data;
341 <
342 <    if (client_p->localClient->reject_delay > 0)
343 <    {
344 <      if (client_p->localClient->reject_delay <= CurrentTime)
345 <        exit_client(client_p, &me, "Rejected");
346 <      continue;
347 <    }
282 >    struct Client *client_p = node->data;
283  
284      /*
285       * Check UNKNOWN connections - if they have been in this state
286       * for > 30s, close them.
287       */
288 <    if (IsAuthFinished(client_p) && (CurrentTime - client_p->localClient->firsttime) > 30)
289 <      exit_client(client_p, &me, "Registration timed out");
288 >    if (IsAuthFinished(client_p) && (CurrentTime - client_p->connection->firsttime) > 30)
289 >      exit_client(client_p, "Registration timed out");
290    }
291   }
292  
293 + /*
294 + * check_pings - go through the local client list and check activity
295 + * kill off stuff that should die
296 + *
297 + * inputs       - NOT USED (from event)
298 + * output       - next time_t when check_pings() should be called again
299 + * side effects -
300 + *
301 + *
302 + * A PING can be sent to clients as necessary.
303 + *
304 + * Client/Server ping outs are handled.
305 + */
306 +
307 + /*
308 + * Addon from adrian. We used to call this after nextping seconds,
309 + * however I've changed it to run once a second. This is only for
310 + * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
311 + * run once a second makes life a lot easier - when a new client connects
312 + * and they need a ping in 4 seconds, if nextping was set to 20 seconds
313 + * we end up waiting 20 seconds. This is stupid. :-)
314 + * I will optimise (hah!) check_pings() once I've finished working on
315 + * tidying up other network IO evilnesses.
316 + *     -- adrian
317 + */
318 +
319 + static void
320 + check_pings(void *unused)
321 + {
322 +  check_pings_list(&local_client_list);
323 +  check_pings_list(&local_server_list);
324 +  check_unknowns_list();
325 + }
326 +
327   /* check_conf_klines()
328   *
329   * inputs       - NONE
# Line 362 | Line 331 | check_unknowns_list(void)
331   * side effects - Check all connections for a pending kline against the
332   *                client, exit the client if a kline matches.
333   */
334 < void
334 > void
335   check_conf_klines(void)
336 < {              
337 <  struct Client *client_p = NULL;       /* current local client_p being examined */
338 <  struct AccessItem *aconf = NULL;
370 <  struct ConfItem *conf = NULL;
371 <  dlink_node *ptr, *next_ptr;
336 > {
337 >  struct MaskItem *conf = NULL;
338 >  dlink_node *node = NULL, *node_next = NULL;
339  
340 <  DLINK_FOREACH_SAFE(ptr, next_ptr, local_client_list.head)
340 >  DLINK_FOREACH_SAFE(node, node_next, local_client_list.head)
341    {
342 <    client_p = ptr->data;
342 >    struct Client *client_p = node->data;
343  
344 <    /* If a client is already being exited
345 <     */
379 <    if (IsDead(client_p) || !IsClient(client_p))
344 >    /* If a client is already being exited */
345 >    if (IsDead(client_p))
346        continue;
347  
348 <    /* if there is a returned struct ConfItem then kill it */
349 <    if ((aconf = find_dline_conf(&client_p->localClient->ip,
384 <                                  client_p->localClient->aftype)) != NULL)
348 >    if ((conf = find_conf_by_address(NULL, &client_p->connection->ip, CONF_DLINE,
349 >                                     client_p->connection->aftype, NULL, NULL, 1)))
350      {
351 <      if (aconf->status & CONF_EXEMPTDLINE)
352 <        continue;
388 <
389 <      conf = unmap_conf_item(aconf);
390 <      ban_them(client_p, conf);
391 <      continue; /* and go examine next fd/client_p */
351 >      conf_try_ban(client_p, conf);
352 >      continue;  /* and go examine next Client */
353      }
354  
355 <    if (ConfigFileEntry.glines && (aconf = find_gline(client_p)))
356 <    {
357 <      if (IsExemptKline(client_p) ||
397 <          IsExemptGline(client_p))
398 <      {
399 <        sendto_realops_flags(UMODE_ALL, L_ALL,
400 <                             "GLINE over-ruled for %s, client is %sline_exempt",
401 <                             get_client_name(client_p, HIDE_IP), IsExemptKline(client_p) ? "k" : "g");
402 <        continue;
403 <      }
404 <
405 <      conf = unmap_conf_item(aconf);
406 <      ban_them(client_p, conf);
407 <      /* and go examine next fd/client_p */    
408 <      continue;
409 <    }
410 <
411 <    if ((aconf = find_kill(client_p)) != NULL)
355 >    if ((conf = find_conf_by_address(client_p->host, &client_p->connection->ip,
356 >                                     CONF_KLINE, client_p->connection->aftype,
357 >                                     client_p->username, NULL, 1)))
358      {
359 <
360 <      /* if there is a returned struct AccessItem.. then kill it */
415 <      if (IsExemptKline(client_p))
416 <      {
417 <        sendto_realops_flags(UMODE_ALL, L_ALL,
418 <                             "KLINE over-ruled for %s, client is kline_exempt",
419 <                             get_client_name(client_p, HIDE_IP));
420 <        continue;
421 <      }
422 <
423 <      conf = unmap_conf_item(aconf);
424 <      ban_them(client_p, conf);
425 <      continue;
359 >      conf_try_ban(client_p, conf);
360 >      continue;  /* and go examine next Client */
361      }
362  
363 <    /* if there is a returned struct MatchItem then kill it */
364 <    if ((conf = find_matching_name_conf(XLINE_TYPE,  client_p->info,
430 <                                        NULL, NULL, 0)) != NULL ||
431 <        (conf = find_matching_name_conf(RXLINE_TYPE, client_p->info,
432 <                                        NULL, NULL, 0)) != NULL)
363 >    if ((conf = find_matching_name_conf(CONF_XLINE, client_p->info,
364 >                                        NULL, NULL, 0)))
365      {
366 <      ban_them(client_p, conf);
367 <      continue;
366 >      conf_try_ban(client_p, conf);
367 >      continue;  /* and go examine next Client */
368      }
369    }
370  
371 <  /* also check the unknowns list for new dlines */
372 <  DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head)
371 >  /* Also check the unknowns list for new dlines */
372 >  DLINK_FOREACH_SAFE(node, node_next, unknown_list.head)
373    {
374 <    client_p = ptr->data;
374 >    struct Client *client_p = node->data;
375  
376 <    if ((aconf = find_dline_conf(&client_p->localClient->ip,
377 <                                  client_p->localClient->aftype)))
376 >    if ((conf = find_conf_by_address(NULL, &client_p->connection->ip, CONF_DLINE,
377 >                                     client_p->connection->aftype, NULL, NULL, 1)))
378      {
379 <      if (aconf->status & CONF_EXEMPTDLINE)
380 <        continue;
449 <
450 <      exit_client(client_p, &me, "D-lined");
379 >      conf_try_ban(client_p, conf);
380 >      continue;  /* and go examine next Client */
381      }
382    }
383   }
384  
385   /*
386 < * ban_them
386 > * conf_try_ban
387   *
388   * inputs       - pointer to client to ban
389 < *              - pointer to ConfItem
389 > *              - pointer to MaskItem
390   * output       - NONE
391   * side effects - given client_p is banned
392   */
393 < static void
394 < ban_them(struct Client *client_p, struct ConfItem *conf)
393 > void
394 > conf_try_ban(struct Client *client_p, struct MaskItem *conf)
395   {
396 <  const char *user_reason = NULL;       /* What is sent to user */
467 <  const char *channel_reason = NULL;    /* What is sent to channel */
468 <  struct AccessItem *aconf = NULL;
469 <  struct MatchItem *xconf = NULL;
470 <  const char *type_string = NULL;
471 <  const char dline_string[] = "D-line";
472 <  const char kline_string[] = "K-line";
473 <  const char gline_string[] = "G-line";
474 <  const char xline_string[] = "X-line";
396 >  char ban_type = '\0';
397  
398    switch (conf->type)
399    {
400 <    case RKLINE_TYPE:
401 <    case KLINE_TYPE:
402 <      type_string = kline_string;
403 <      aconf = map_to_conf(conf);
404 <      break;
405 <    case DLINE_TYPE:
406 <      type_string = dline_string;
407 <      aconf = map_to_conf(conf);
400 >    case CONF_KLINE:
401 >      if (IsExemptKline(client_p))
402 >      {
403 >        sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
404 >                             "KLINE over-ruled for %s, client is kline_exempt",
405 >                             get_client_name(client_p, HIDE_IP));
406 >        return;
407 >      }
408 >
409 >      ban_type = 'K';
410        break;
411 <    case GLINE_TYPE:
412 <      type_string = gline_string;
413 <      aconf = map_to_conf(conf);
411 >    case CONF_DLINE:
412 >      if (find_conf_by_address(NULL, &client_p->connection->ip, CONF_EXEMPT,
413 >                               client_p->connection->aftype, NULL, NULL, 1))
414 >        return;
415 >      ban_type = 'D';
416        break;
417 <    case RXLINE_TYPE:
418 <    case XLINE_TYPE:
419 <      type_string = xline_string;
420 <      xconf = map_to_conf(conf);
421 <      ++xconf->count;
417 >    case CONF_XLINE:
418 >      if (IsExemptXline(client_p))
419 >      {
420 >        sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
421 >                             "XLINE over-ruled for %s, client is xline_exempt",
422 >                             get_client_name(client_p, HIDE_IP));
423 >        return;
424 >      }
425 >      ban_type = 'X';
426 >      ++conf->count;
427        break;
428      default:
429        assert(0);
430        break;
431    }
432  
433 <  if (ConfigFileEntry.kline_with_reason)
434 <  {
504 <    if (aconf != NULL)
505 <      user_reason = aconf->reason ? aconf->reason : type_string;
506 <    if (xconf != NULL)
507 <      user_reason = xconf->reason ? xconf->reason : type_string;
508 <  }
509 <  else
510 <    user_reason = type_string;
511 <
512 <  if (ConfigFileEntry.kline_reason != NULL)
513 <    channel_reason = ConfigFileEntry.kline_reason;
514 <  else
515 <    channel_reason = user_reason;
516 <
517 <  sendto_realops_flags(UMODE_ALL, L_ALL, "%s active for %s",
518 <                       type_string, get_client_name(client_p, HIDE_IP));
433 >  sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%c-line active for %s",
434 >                       ban_type, get_client_name(client_p, HIDE_IP));
435  
436    if (IsClient(client_p))
437 <    sendto_one(client_p, form_str(ERR_YOUREBANNEDCREEP),
522 <               me.name, client_p->name, user_reason);
437 >    sendto_one_numeric(client_p, &me, ERR_YOUREBANNEDCREEP, conf->reason);
438  
439 <  exit_client(client_p, &me, channel_reason);
439 >  exit_client(client_p, conf->reason);
440   }
441  
442   /* update_client_exit_stats()
443   *
444   * input        - pointer to client
445   * output       - NONE
446 < * side effects -
446 > * side effects -
447   */
448   static void
449   update_client_exit_stats(struct Client *client_p)
# Line 536 | Line 451 | update_client_exit_stats(struct Client *
451    if (IsClient(client_p))
452    {
453      assert(Count.total > 0);
454 +
455      --Count.total;
456      if (HasUMode(client_p, UMODE_OPER))
457        --Count.oper;
# Line 543 | Line 459 | update_client_exit_stats(struct Client *
459        --Count.invisi;
460    }
461    else if (IsServer(client_p))
462 <    sendto_realops_flags(UMODE_EXTERNAL, L_ALL, "Server %s split from %s",
462 >    sendto_realops_flags(UMODE_EXTERNAL, L_ALL, SEND_NOTICE,
463 >                         "Server %s split from %s",
464                           client_p->name, client_p->servptr->name);
465  
466    if (splitchecking && !splitmode)
# Line 556 | Line 473 | update_client_exit_stats(struct Client *
473   * output       - return client pointer
474   * side effects - find person by (nick)name
475   */
559 /* XXX - ugly wrapper */
476   struct Client *
477 < find_person(const struct Client *client_p, const char *name)
477 > find_person(const struct Client *const source_p, const char *name)
478   {
479 <  struct Client *c2ptr;
479 >  struct Client *target_p = NULL;
480  
481    if (IsDigit(*name))
482    {
483 <    if ((c2ptr = hash_find_id(name)) != NULL)
484 <    {
569 <      /* invisible users shall not be found by UID guessing */
570 <      if (HasUMode(c2ptr, UMODE_INVISIBLE) && !IsServer(client_p))
571 <        c2ptr = NULL;
572 <    }
483 >    if (IsServer(source_p->from))
484 >      target_p = hash_find_id(name);
485    }
486    else
487 <    c2ptr = hash_find_client(name);
487 >    target_p = hash_find_client(name);
488  
489 <  return ((c2ptr != NULL && IsClient(c2ptr)) ? c2ptr : NULL);
489 >  return (target_p && IsClient(target_p)) ? target_p : NULL;
490   }
491  
492   /*
493 < * find_chasing - find the client structure for a nick name (user)
494 < *      using history mechanism if necessary. If the client is not found,
495 < *      an error message (NO SUCH NICK) is generated. If the client was found
584 < *      through the history, chasing will be 1 and otherwise 0.
493 > * find_chasing - find the client structure for a nick name (name)
494 > *      using history mechanism if necessary. If the client is not found,
495 > *      an error message (NO SUCH NICK) is generated.
496   */
497   struct Client *
498 < find_chasing(struct Client *client_p, struct Client *source_p, const char *user, int *chasing)
498 > find_chasing(struct Client *source_p, const char *name)
499   {
500 <  struct Client *who = find_person(client_p, user);
500 >  struct Client *target_p = find_person(source_p, name);
501  
502 <  if (chasing)
503 <    *chasing = 0;
502 >  if (target_p)
503 >    return target_p;
504  
505 <  if (who)
595 <    return who;
596 <
597 <  if (IsDigit(*user))
505 >  if (IsDigit(*name))
506      return NULL;
507  
508 <  if ((who = get_history(user,
509 <                        (time_t)ConfigFileEntry.kill_chase_time_limit))
510 <                         == NULL)
508 >  target_p = whowas_get_history(name, (time_t)ConfigGeneral.kill_chase_time_limit);
509 >
510 >  if (!target_p)
511    {
512 <    sendto_one(source_p, form_str(ERR_NOSUCHNICK),
605 <               me.name, source_p->name, user);
512 >    sendto_one_numeric(source_p, &me, ERR_NOSUCHNICK, name);
513      return NULL;
514    }
515  
516 <  if (chasing)
610 <    *chasing = 1;
611 <
612 <  return who;
516 >  return target_p;
517   }
518  
519   /*
# Line 621 | Line 525 | find_chasing(struct Client *client_p, st
525   *        But, this can be used to any client structure.
526   *
527   * NOTE 1:
528 < *        Watch out the allocation of "nbuf", if either source_p->name
528 > *        Watch out the allocation of "buf", if either source_p->name
529   *        or source_p->sockhost gets changed into pointers instead of
530   *        directly allocated within the structure...
531   *
532   * NOTE 2:
533   *        Function return either a pointer to the structure (source_p) or
534 < *        to internal buffer (nbuf). *NEVER* use the returned pointer
534 > *        to internal buffer (buf). *NEVER* use the returned pointer
535   *        to modify what it points!!!
536   */
537   const char *
538 < get_client_name(const struct Client *client, enum addr_mask_type type)
538 > get_client_name(const struct Client *client_p, enum addr_mask_type type)
539   {
540 <  static char nbuf[HOSTLEN * 2 + USERLEN + 5];
637 <
638 <  assert(client != NULL);
540 >  static char buf[HOSTLEN * 2 + USERLEN + 5];
541  
542 <  if (!MyConnect(client))
543 <    return client->name;
542 >  if (!MyConnect(client_p))
543 >    return client_p->name;
544  
545 <  if (IsServer(client) || IsConnecting(client) || IsHandshake(client))
545 >  if (IsServer(client_p) || IsConnecting(client_p) || IsHandshake(client_p))
546    {
547 <    if (!irccmp(client->name, client->host))
548 <      return client->name;
547 >    if (!irccmp(client_p->name, client_p->host))
548 >      return client_p->name;
549      else if (ConfigServerHide.hide_server_ips)
550        type = MASK_IP;
551    }
552  
651  if (ConfigFileEntry.hide_spoof_ips)
652    if (type == SHOW_IP && IsIPSpoof(client))
653      type = MASK_IP;
654
553    /* And finally, let's get the host information, ip or name */
554    switch (type)
555    {
556      case SHOW_IP:
557 <      snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]",
558 <               client->name,
559 <               client->username, client->sockhost);
557 >      snprintf(buf, sizeof(buf), "%s[%s@%s]",
558 >               client_p->name,
559 >               client_p->username, client_p->sockhost);
560        break;
561      case MASK_IP:
562 <      if (client->localClient->aftype == AF_INET)
563 <        snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]",
564 <                 client->name, client->username);
562 >      if (client_p->connection->aftype == AF_INET)
563 >        snprintf(buf, sizeof(buf), "%s[%s@255.255.255.255]",
564 >                 client_p->name, client_p->username);
565        else
566 <        snprintf(nbuf, sizeof(nbuf), "%s[%s@ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]",
567 <                 client->name, client->username);
566 >        snprintf(buf, sizeof(buf), "%s[%s@ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]",
567 >                 client_p->name, client_p->username);
568        break;
569      default:
570 <      snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]",
571 <               client->name,
572 <               client->username, client->host);
570 >      snprintf(buf, sizeof(buf), "%s[%s@%s]",
571 >               client_p->name,
572 >               client_p->username, client_p->host);
573    }
574  
575 <  return nbuf;
575 >  return buf;
576   }
577  
578   void
579   free_exited_clients(void)
580   {
581 <  dlink_node *ptr = NULL, *next = NULL;
582 <  
583 <  DLINK_FOREACH_SAFE(ptr, next, dead_list.head)
581 >  dlink_node *node = NULL, *node_next = NULL;
582 >
583 >  DLINK_FOREACH_SAFE(node, node_next, dead_list.head)
584    {
585 <    free_client(ptr->data);
586 <    dlinkDelete(ptr, &dead_list);
587 <    free_dlink_node(ptr);
585 >    free_client(node->data);
586 >    dlinkDelete(node, &dead_list);
587 >    free_dlink_node(node);
588    }
589   }
590  
# Line 697 | Line 595 | free_exited_clients(void)
595   * The only messages generated are QUITs on channels.
596   */
597   static void
598 < exit_one_client(struct Client *source_p, const char *quitmsg)
598 > exit_one_client(struct Client *source_p, const char *comment)
599   {
600 <  dlink_node *lp = NULL, *next_lp = NULL;
600 >  dlink_node *node = NULL, *node_next = NULL;
601  
602    assert(!IsMe(source_p));
603 +  assert(source_p != &me);
604  
605    if (IsClient(source_p))
606    {
607 <    if (source_p->servptr->serv != NULL)
608 <      dlinkDelete(&source_p->lnode, &source_p->servptr->serv->client_list);
607 >    dlinkDelete(&source_p->lnode, &source_p->servptr->serv->client_list);
608 >    dlinkDelete(&source_p->node, &global_client_list);
609  
610      /*
611       * If a person is on a channel, send a QUIT notice
# Line 714 | Line 613 | exit_one_client(struct Client *source_p,
613       * that the client can show the "**signoff" message).
614       * (Note: The notice is to the local clients *only*)
615       */
616 <    sendto_common_channels_local(source_p, 0, ":%s!%s@%s QUIT :%s",
616 >    sendto_common_channels_local(source_p, 0, 0, ":%s!%s@%s QUIT :%s",
617                                   source_p->name, source_p->username,
618 <                                 source_p->host, quitmsg);
619 <    DLINK_FOREACH_SAFE(lp, next_lp, source_p->channel.head)
620 <      remove_user_from_channel(lp->data);
618 >                                 source_p->host, comment);
619 >
620 >    DLINK_FOREACH_SAFE(node, node_next, source_p->channel.head)
621 >      remove_user_from_channel(node->data);
622  
623 <    add_history(source_p, 0);
624 <    off_history(source_p);
623 >    whowas_add_history(source_p, 0);
624 >    whowas_off_history(source_p);
625  
626      watch_check_hash(source_p, RPL_LOGOFF);
627  
628      if (MyConnect(source_p))
629      {
630 <      /* Clean up invitefield */
731 <      DLINK_FOREACH_SAFE(lp, next_lp, source_p->localClient->invited.head)
732 <        del_invite(lp->data, source_p);
733 <
630 >      clear_invites_client(source_p);
631        del_all_accepts(source_p);
632      }
633    }
634    else if (IsServer(source_p))
635    {
636      dlinkDelete(&source_p->lnode, &source_p->servptr->serv->server_list);
637 +    dlinkDelete(&source_p->node, &global_client_list);
638  
639 <    if ((lp = dlinkFindDelete(&global_serv_list, source_p)) != NULL)
640 <      free_dlink_node(lp);
639 >    if ((node = dlinkFindDelete(&global_server_list, source_p)))
640 >      free_dlink_node(node);
641    }
642  
643    /* Remove source_p from the client lists */
644 <  if (HasID(source_p))
644 >  if (source_p->id[0])
645      hash_del_id(source_p);
646 +
647    if (source_p->name[0])
648      hash_del_client(source_p);
649  
650    if (IsUserHostIp(source_p))
651      delete_user_host(source_p->username, source_p->host, !MyConnect(source_p));
652  
754  /* remove from global client list
755   * NOTE: source_p->node.next cannot be NULL if the client is added
756   *       to global_client_list (there is always &me at its end)
757   */
758  if (source_p != NULL && source_p->node.next != NULL)
759    dlinkDelete(&source_p->node, &global_client_list);
760
653    update_client_exit_stats(source_p);
654  
655    /* Check to see if the client isn't already on the dead list */
# Line 768 | Line 660 | exit_one_client(struct Client *source_p,
660    dlinkAdd(source_p, make_dlink_node(), &dead_list);
661   }
662  
663 < /* Recursively send QUITs and SQUITs for source_p and all its dependent clients
772 < * and servers to those servers that need them.  A server needs the client
773 < * QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
774 < * isn't getting the SQUIT because of @#(*&@)# hostmasking.  With TS4, once
775 < * a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
776 < * on that one -orabidoo
777 < *
778 < * This is now called on each local server -adx
779 < */
780 < static void
781 < recurse_send_quits(struct Client *original_source_p, struct Client *source_p,
782 <                   struct Client *from, struct Client *to, const char *comment,
783 <                   const char *splitstr)
784 < {
785 <  dlink_node *ptr, *next;
786 <  struct Client *target_p;
787 <  int hidden = match(me.name, source_p->name); /* XXX */
788 <
789 <  assert(to != source_p);  /* should be already removed from serv_list */
790 <
791 <  /* If this server can handle quit storm (QS) removal
792 <   * of dependents, just send the SQUIT
793 <   *
794 <   * Always check *all* dependent servers if some of them are
795 <   * hidden behind fakename. If so, send out the QUITs -adx
796 <   */
797 <  if (hidden || !IsCapable(to, CAP_QS))
798 <    DLINK_FOREACH_SAFE(ptr, next, source_p->serv->client_list.head)
799 <    {
800 <      target_p = ptr->data;
801 <      sendto_one(to, ":%s QUIT :%s", target_p->name, splitstr);
802 <    }
803 <
804 <  DLINK_FOREACH_SAFE(ptr, next, source_p->serv->server_list.head)
805 <    recurse_send_quits(original_source_p, ptr->data, from, to,
806 <                       comment, splitstr);
807 <
808 <  if (!hidden && ((source_p == original_source_p && to != from) ||
809 <                  !IsCapable(to, CAP_QS)))
810 <  {
811 <    /* don't use a prefix here - we have to be 100% sure the message
812 <     * will be accepted without Unknown prefix etc.. */
813 <    sendto_one(to, "SQUIT %s :%s", ID_or_name(source_p, to), comment);
814 <  }
815 < }
816 <
817 < /*
663 > /*
664   * Remove all clients that depend on source_p; assumes all (S)QUITs have
665 < * already been sent.  we make sure to exit a server's dependent clients
666 < * and servers before the server itself; exit_one_client takes care of
665 > * already been sent.  we make sure to exit a server's dependent clients
666 > * and servers before the server itself; exit_one_client takes care of
667   * actually removing things off llists.   tweaked from +CSr31  -orabidoo
668   */
669   static void
670 < recurse_remove_clients(struct Client *source_p, const char *quitmsg)
670 > recurse_remove_clients(struct Client *source_p, const char *comment)
671   {
672 <  dlink_node *ptr, *next;
672 >  dlink_node *node = NULL, *node_next = NULL;
673  
674 <  DLINK_FOREACH_SAFE(ptr, next, source_p->serv->client_list.head)
675 <    exit_one_client(ptr->data, quitmsg);
674 >  DLINK_FOREACH_SAFE(node, node_next, source_p->serv->client_list.head)
675 >    exit_one_client(node->data, comment);
676  
677 <  DLINK_FOREACH_SAFE(ptr, next, source_p->serv->server_list.head)
677 >  DLINK_FOREACH_SAFE(node, node_next, source_p->serv->server_list.head)
678    {
679 <    recurse_remove_clients(ptr->data, quitmsg);
680 <    exit_one_client(ptr->data, quitmsg);
679 >    recurse_remove_clients(node->data, comment);
680 >    exit_one_client(node->data, comment);
681    }
682   }
683  
684   /*
839 ** Remove *everything* that depends on source_p, from all lists, and sending
840 ** all necessary QUITs and SQUITs.  source_p itself is still on the lists,
841 ** and its SQUITs have been sent except for the upstream one  -orabidoo
842 */
843 static void
844 remove_dependents(struct Client *source_p, struct Client *from,
845                  const char *comment, const char *splitstr)
846 {
847  dlink_node *ptr = NULL;
848
849  DLINK_FOREACH(ptr, serv_list.head)
850    recurse_send_quits(source_p, source_p, from, ptr->data,
851                       comment, splitstr);
852
853  recurse_remove_clients(source_p, splitstr);
854 }
855
856 /*
685   * exit_client - exit a client of any type. Generally, you can use
686   * this on any struct Client, regardless of its state.
687   *
688   * Note, you shouldn't exit remote _users_ without first doing
689   * AddFlag(x, FLAGS_KILLED) and propagating a kill or similar message.
690 + *
691   * However, it is perfectly correct to call exit_client to force a _server_
692   * quit (either local or remote one).
693   *
694 + *
695   * inputs:       - a client pointer that is going to be exited
866 *               - for servers, the second argument is a pointer to who
867 *                 is firing the server. This side won't get any generated
868 *                 messages. NEVER NULL!
696   * output:       none
697   * side effects: the client is delinked from all lists, disconnected,
698   *               and the rest of IRC network is notified of the exit.
699   *               Client memory is scheduled to be freed
700   */
701   void
702 < exit_client(struct Client *source_p, struct Client *from, const char *comment)
702 > exit_client(struct Client *source_p, const char *comment)
703   {
704 <  dlink_node *m = NULL;
704 >  dlink_node *node = NULL;
705 >
706 >  assert(!IsMe(source_p));
707 >  assert(source_p != &me);
708  
709    if (MyConnect(source_p))
710    {
# Line 886 | Line 716 | exit_client(struct Client *source_p, str
716  
717      SetClosing(source_p);
718  
719 <    if (IsIpHash(source_p))
890 <      remove_one_ip(&source_p->localClient->ip);
891 <
892 <    if (source_p->localClient->auth)
719 >    if (HasFlag(source_p, FLAGS_IPHASH))
720      {
721 <      delete_auth(source_p->localClient->auth);
722 <      source_p->localClient->auth = NULL;
721 >      DelFlag(source_p, FLAGS_IPHASH);
722 >      ipcache_remove_address(&source_p->connection->ip);
723      }
724  
725 <    /* This source_p could have status of one of STAT_UNKNOWN, STAT_CONNECTING
725 >    delete_auth(&source_p->connection->auth);
726 >
727 >    /*
728 >     * This source_p could have status of one of STAT_UNKNOWN, STAT_CONNECTING
729       * STAT_HANDSHAKE or STAT_UNKNOWN
730       * all of which are lumped together into unknown_list
731       *
# Line 905 | Line 735 | exit_client(struct Client *source_p, str
735      {
736        assert(dlinkFind(&unknown_list, source_p));
737  
738 <      dlinkDelete(&source_p->localClient->lclient_node, &unknown_list);
738 >      dlinkDelete(&source_p->connection->lclient_node, &unknown_list);
739      }
740      else if (IsClient(source_p))
741      {
742 <      time_t on_for = CurrentTime - source_p->localClient->firsttime;
742 >      time_t on_for = CurrentTime - source_p->connection->firsttime;
743 >
744        assert(Count.local > 0);
745 <      Count.local--;
745 >
746 >      --Count.local;
747  
748        if (HasUMode(source_p, UMODE_OPER))
749 <      {
750 <        if ((m = dlinkFindDelete(&oper_list, source_p)) != NULL)
919 <          free_dlink_node(m);
920 <      }
749 >        if ((node = dlinkFindDelete(&oper_list, source_p)))
750 >          free_dlink_node(node);
751  
752        assert(dlinkFind(&local_client_list, source_p));
753 <      dlinkDelete(&source_p->localClient->lclient_node, &local_client_list);
753 >      dlinkDelete(&source_p->connection->lclient_node, &local_client_list);
754  
755 <      if (source_p->localClient->list_task != NULL)
756 <        free_list_task(source_p->localClient->list_task, source_p);
755 >      if (source_p->connection->list_task)
756 >        free_list_task(source_p);
757  
758        watch_del_watch_list(source_p);
759 <      sendto_realops_flags(UMODE_CCONN, L_ALL, "Client exiting: %s (%s@%s) [%s] [%s]",
759 >      client_clear_svstags(source_p);
760 >
761 >      sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE,
762 >                           "Client exiting: %s (%s@%s) [%s] [%s]",
763                             source_p->name, source_p->username, source_p->host, comment,
764 <                           ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
765 <                           "255.255.255.255" : source_p->sockhost);
933 <      sendto_realops_flags(UMODE_CCONN_FULL, L_ALL, "CLIEXIT: %s %s %s %s 0 %s",
934 <                           source_p->name,
935 <                           source_p->username,
936 <                           source_p->host,
937 <                           ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
938 <                           "255.255.255.255" : source_p->sockhost,
939 <                           comment);
764 >                           source_p->sockhost);
765 >
766        ilog(LOG_TYPE_USER, "%s (%3u:%02u:%02u): %s!%s@%s %llu/%llu",
767 <           myctime(source_p->localClient->firsttime), (unsigned int)(on_for / 3600),
767 >           myctime(source_p->connection->firsttime), (unsigned int)(on_for / 3600),
768             (unsigned int)((on_for % 3600)/60), (unsigned int)(on_for % 60),
769             source_p->name, source_p->username, source_p->host,
770 <           source_p->localClient->send.bytes>>10,
771 <           source_p->localClient->recv.bytes>>10);
770 >           source_p->connection->send.bytes>>10,
771 >           source_p->connection->recv.bytes>>10);
772      }
773 <
948 <    /* As soon as a client is known to be a server of some sort
949 <     * it has to be put on the serv_list, or SJOIN's to this new server
950 <     * from the connect burst will not be seen.
951 <     * XXX - TBV.  This is not true. The only place where we put a server on
952 <     * serv_list is in server_estab right now after registration process.
953 <     * And only after this, a burst is sent to the remote server, i.e. we never
954 <     * send a burst to STAT_CONNECTING, or STAT_HANDSHAKE. This will need
955 <     * more investigation later on, but for now, it's not a problem after all.
956 <     */
957 <    if (IsServer(source_p) || IsConnecting(source_p) ||
958 <        IsHandshake(source_p))
773 >    else if (IsServer(source_p))
774      {
775 <      if (dlinkFind(&serv_list, source_p))
961 <      {
962 <        dlinkDelete(&source_p->localClient->lclient_node, &serv_list);
963 <        unset_chcap_usage_counts(source_p);
964 <      }
775 >      assert(Count.myserver > 0);
776  
777 <      if (IsServer(source_p))
778 <        Count.myserver--;
777 >      --Count.myserver;
778 >
779 >      assert(dlinkFind(&local_server_list, source_p));
780 >      dlinkDelete(&source_p->connection->lclient_node, &local_server_list);
781      }
782  
783      if (!IsDead(source_p))
784      {
785        if (IsServer(source_p))
786        {
787 <        /* for them, we are exiting the network */
788 <        sendto_one(source_p, ":%s SQUIT %s :%s",
789 <                   ID_or_name(from, source_p), me.name, comment);
787 >        if (!HasFlag(source_p, FLAGS_SQUIT))
788 >        {
789 >          /* for them, we are exiting the network */
790 >          sendto_one(source_p, ":%s SQUIT %s :%s",
791 >                     me.id, me.id, comment);
792 >        }
793        }
794  
795        sendto_one(source_p, "ERROR :Closing Link: %s (%s)",
796                   source_p->host, comment);
797      }
798  
983    /*
984    ** Currently only server connections can have
985    ** depending remote clients here, but it does no
986    ** harm to check for all local clients. In
987    ** future some other clients than servers might
988    ** have remotes too...
989    **
990    ** Close the Client connection first and mark it
991    ** so that no messages are attempted to send to it.
992    ** Remember it makes source_p->from == NULL.
993    */
799      close_connection(source_p);
800    }
801 +  else if (IsClient(source_p) && HasFlag(source_p->servptr, FLAGS_EOB))
802 +    sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE,
803 +                         "Client exiting at %s: %s (%s@%s) [%s]",
804 +                         source_p->servptr->name, source_p->name,
805 +                         source_p->username, source_p->host, comment);
806  
807    if (IsServer(source_p))
808    {
809 <    char splitstr[HOSTLEN + HOSTLEN + 2];
809 >    char splitstr[HOSTLEN + HOSTLEN + 2] = "";
810  
811 <    /* This shouldn't ever happen */
812 <    assert(source_p->serv != NULL && source_p->servptr != NULL);
811 >    assert(source_p->serv);
812 >    assert(source_p->servptr);
813  
814      if (ConfigServerHide.hide_servers)
815        /*
816 <       * Set netsplit message to "*.net *.split" to still show
816 >       * Set netsplit message to "*.net *.split" to still show
817         * that its a split, but hide the servers splitting
818         */
819 <      strcpy(splitstr, "*.net *.split");
819 >      strlcpy(splitstr, "*.net *.split", sizeof(splitstr));
820      else
821        snprintf(splitstr, sizeof(splitstr), "%s %s",
822                 source_p->servptr->name, source_p->name);
823  
824 <    remove_dependents(source_p, from->from, comment, splitstr);
824 >    /* Send SQUIT for source_p in every direction. source_p is already off of local_server_list here */
825 >    if (!HasFlag(source_p, FLAGS_SQUIT))
826 >      sendto_server(NULL, 0, 0, "SQUIT %s :%s", source_p->id, comment);
827 >
828 >    /* Now exit the clients internally */
829 >    recurse_remove_clients(source_p, splitstr);
830  
831 <    if (source_p->servptr == &me)
831 >    if (MyConnect(source_p))
832      {
833 <      sendto_realops_flags(UMODE_ALL, L_ALL,
834 <                           "%s was connected for %d seconds.  %llu/%llu sendK/recvK.",
835 <                           source_p->name, (int)(CurrentTime - source_p->localClient->firsttime),
836 <                           source_p->localClient->send.bytes >> 10,
837 <                           source_p->localClient->recv.bytes >> 10);
838 <      ilog(LOG_TYPE_IRCD, "%s was connected for %d seconds.  %llu/%llu sendK/recvK.",
839 <           source_p->name, (int)(CurrentTime - source_p->localClient->firsttime),
840 <           source_p->localClient->send.bytes >> 10,
841 <           source_p->localClient->recv.bytes >> 10);
833 >      int connected = CurrentTime - source_p->connection->firsttime;
834 >      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
835 >                           "%s was connected for %d day%s, %2d:%02d:%02d. %llu/%llu sendK/recvK.",
836 >                           source_p->name, connected/86400, (connected/86400 == 1) ? "" : "s",
837 >                           (connected % 86400) / 3600, (connected % 3600) / 60, connected % 60,
838 >                           source_p->connection->send.bytes >> 10,
839 >                           source_p->connection->recv.bytes >> 10);
840 >      ilog(LOG_TYPE_IRCD, "%s was connected for %d day%s, %2d:%02d:%02d. %llu/%llu sendK/recvK.",
841 >           source_p->name, connected/86400, (connected/86400 == 1) ? "" : "s",
842 >           (connected % 86400) / 3600, (connected % 3600) / 60, connected % 60,
843 >           source_p->connection->send.bytes >> 10,
844 >           source_p->connection->recv.bytes >> 10);
845      }
846    }
847    else if (IsClient(source_p) && !HasFlag(source_p, FLAGS_KILLED))
848 <  {
849 <    sendto_server(from->from, CAP_TS6, NOCAPS,
1032 <                  ":%s QUIT :%s", ID(source_p), comment);
1033 <    sendto_server(from->from, NOCAPS, CAP_TS6,
1034 <                  ":%s QUIT :%s", source_p->name, comment);
1035 <  }
848 >    sendto_server(source_p->from, 0, 0, ":%s QUIT :%s",
849 >                  source_p->id, comment);
850  
851    /* The client *better* be off all of the lists */
852    assert(dlinkFind(&unknown_list, source_p) == NULL);
853    assert(dlinkFind(&local_client_list, source_p) == NULL);
854 <  assert(dlinkFind(&serv_list, source_p) == NULL);
854 >  assert(dlinkFind(&local_server_list, source_p) == NULL);
855    assert(dlinkFind(&oper_list, source_p) == NULL);
856  
857    exit_one_client(source_p, comment);
# Line 1050 | Line 864 | exit_client(struct Client *source_p, str
864   void
865   dead_link_on_write(struct Client *client_p, int ierrno)
866   {
867 <  dlink_node *ptr;
867 >  dlink_node *node;
868  
869    if (IsDefunct(client_p))
870      return;
871  
872 <  dbuf_clear(&client_p->localClient->buf_recvq);
873 <  dbuf_clear(&client_p->localClient->buf_sendq);
872 >  dbuf_clear(&client_p->connection->buf_recvq);
873 >  dbuf_clear(&client_p->connection->buf_sendq);
874  
875    assert(dlinkFind(&abort_list, client_p) == NULL);
876 <  ptr = make_dlink_node();
876 >  node = make_dlink_node();
877    /* don't let exit_aborted_clients() finish yet */
878 <  dlinkAddTail(client_p, ptr, &abort_list);
878 >  dlinkAddTail(client_p, node, &abort_list);
879  
880    if (eac_next == NULL)
881 <    eac_next = ptr;
881 >    eac_next = node;
882  
883    SetDead(client_p); /* You are dead my friend */
884   }
# Line 1076 | Line 890 | dead_link_on_write(struct Client *client
890   void
891   dead_link_on_read(struct Client *client_p, int error)
892   {
893 <  char errmsg[255];
893 >  char errmsg[IRCD_BUFSIZE];
894    int current_error;
895  
896    if (IsDefunct(client_p))
897      return;
898  
899 <  dbuf_clear(&client_p->localClient->buf_recvq);
900 <  dbuf_clear(&client_p->localClient->buf_sendq);
899 >  dbuf_clear(&client_p->connection->buf_recvq);
900 >  dbuf_clear(&client_p->connection->buf_sendq);
901  
902 <  current_error = get_sockerr(client_p->localClient->fd.fd);
902 >  current_error = get_sockerr(client_p->connection->fd.fd);
903  
904    if (IsServer(client_p) || IsHandshake(client_p))
905    {
906 <    int connected = CurrentTime - client_p->localClient->firsttime;
907 <      
906 >    int connected = CurrentTime - client_p->connection->firsttime;
907 >
908      if (error == 0)
909      {
910        /* Admins get the real IP */
911 <      sendto_realops_flags(UMODE_ALL, L_ADMIN,
912 <                           "Server %s closed the connection",
913 <                           get_client_name(client_p, SHOW_IP));
911 >      sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
912 >                           "Server %s closed the connection",
913 >                           get_client_name(client_p, SHOW_IP));
914  
915        /* Opers get a masked IP */
916 <      sendto_realops_flags(UMODE_ALL, L_OPER,
917 <                           "Server %s closed the connection",
918 <                           get_client_name(client_p, MASK_IP));
916 >      sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
917 >                           "Server %s closed the connection",
918 >                           get_client_name(client_p, MASK_IP));
919  
920        ilog(LOG_TYPE_IRCD, "Server %s closed the connection",
921 <           get_client_name(client_p, SHOW_IP));
921 >           get_client_name(client_p, SHOW_IP));
922      }
923      else
924      {
925        report_error(L_ADMIN, "Lost connection to %s: %s",
926 <                   get_client_name(client_p, SHOW_IP), current_error);
926 >                   get_client_name(client_p, SHOW_IP), current_error);
927        report_error(L_OPER, "Lost connection to %s: %s",
928 <                   get_client_name(client_p, MASK_IP), current_error);
928 >                   get_client_name(client_p, MASK_IP), current_error);
929      }
930  
931 <    sendto_realops_flags(UMODE_ALL, L_ALL,
932 <                         "%s had been connected for %d day%s, %2d:%02d:%02d",
933 <                         client_p->name, connected/86400,
934 <                         (connected/86400 == 1) ? "" : "s",
935 <                         (connected % 86400) / 3600, (connected % 3600) / 60,
936 <                         connected % 60);
931 >    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
932 >                         "%s was connected for %d day%s, %2d:%02d:%02d",
933 >                         client_p->name, connected/86400,
934 >                         (connected/86400 == 1) ? "" : "s",
935 >                         (connected % 86400) / 3600, (connected % 3600) / 60,
936 >                         connected % 60);
937    }
938  
939    if (error == 0)
# Line 1129 | Line 943 | dead_link_on_read(struct Client *client_
943      snprintf(errmsg, sizeof(errmsg), "Read error: %s",
944               strerror(current_error));
945  
946 <  exit_client(client_p, &me, errmsg);
946 >  exit_client(client_p, errmsg);
947   }
948  
949   void
# Line 1146 | Line 960 | exit_aborted_clients(void)
960  
961      if (target_p == NULL)
962      {
963 <      sendto_realops_flags(UMODE_ALL, L_ALL,
963 >      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
964                             "Warning: null client on abort_list!");
965        dlinkDelete(ptr, &abort_list);
966        free_dlink_node(ptr);
# Line 1160 | Line 974 | exit_aborted_clients(void)
974      else
975        notice = "Write error: connection closed";
976  
977 <    exit_client(target_p, &me, notice);  
977 >    exit_client(target_p, notice);
978      free_dlink_node(ptr);
979    }
980   }
# Line 1178 | Line 992 | exit_aborted_clients(void)
992   void
993   del_accept(struct split_nuh_item *accept_p, struct Client *client_p)
994   {
995 <  dlinkDelete(&accept_p->node, &client_p->localClient->acceptlist);
995 >  dlinkDelete(&accept_p->node, &client_p->connection->acceptlist);
996  
997    MyFree(accept_p->nickptr);
998    MyFree(accept_p->userptr);
# Line 1188 | Line 1002 | del_accept(struct split_nuh_item *accept
1002  
1003   struct split_nuh_item *
1004   find_accept(const char *nick, const char *user,
1005 <            const char *host, struct Client *client_p, int do_match)
1005 >            const char *host, struct Client *client_p,
1006 >            int (*cmpfunc)(const char *, const char *))
1007   {
1008 <  dlink_node *ptr = NULL;
1194 <  /* XXX We wouldn't need that if match() would return 0 on match */
1195 <  int (*cmpfunc)(const char *, const char *) = do_match ? match : irccmp;
1008 >  dlink_node *node = NULL;
1009  
1010 <  DLINK_FOREACH(ptr, client_p->localClient->acceptlist.head)
1010 >  DLINK_FOREACH(node, client_p->connection->acceptlist.head)
1011    {
1012 <    struct split_nuh_item *accept_p = ptr->data;
1012 >    struct split_nuh_item *accept_p = node->data;
1013  
1014 <    if (cmpfunc(accept_p->nickptr, nick) == do_match &&
1015 <        cmpfunc(accept_p->userptr, user) == do_match &&
1016 <        cmpfunc(accept_p->hostptr, host) == do_match)
1014 >    if (!cmpfunc(accept_p->nickptr, nick) &&
1015 >        !cmpfunc(accept_p->userptr, user) &&
1016 >        !cmpfunc(accept_p->hostptr, host))
1017        return accept_p;
1018    }
1019  
# Line 1218 | Line 1031 | int
1031   accept_message(struct Client *source,
1032                 struct Client *target)
1033   {
1034 <  dlink_node *ptr = NULL;
1034 >  dlink_node *node = NULL;
1035 >
1036 >  if (HasFlag(source, FLAGS_SERVICE) ||
1037 >      (HasUMode(source, UMODE_OPER) && ConfigGeneral.opers_bypass_callerid))
1038 >    return 1;
1039  
1040    if (source == target || find_accept(source->name, source->username,
1041 <                                      source->host, target, 1))
1041 >                                      source->host, target, match))
1042      return 1;
1043  
1044 <  if (HasUMode(target, UMODE_SOFTCALLERID))
1045 <    DLINK_FOREACH(ptr, target->channel.head)
1046 <      if (IsMember(source, ((struct Membership *)ptr->data)->chptr))
1044 >  if (!HasUMode(target, UMODE_CALLERID) && HasUMode(target, UMODE_SOFTCALLERID))
1045 >    DLINK_FOREACH(node, target->channel.head)
1046 >      if (IsMember(source, ((struct Membership *)node->data)->chptr))
1047          return 1;
1048  
1049    return 0;
# Line 1241 | Line 1058 | accept_message(struct Client *source,
1058   void
1059   del_all_accepts(struct Client *client_p)
1060   {
1061 <  dlink_node *ptr = NULL, *next_ptr = NULL;
1061 >  dlink_node *node = NULL, *node_next = NULL;
1062 >
1063 >  DLINK_FOREACH_SAFE(node, node_next, client_p->connection->acceptlist.head)
1064 >    del_accept(node->data, client_p);
1065 > }
1066 >
1067 > unsigned int
1068 > client_get_idle_time(const struct Client *source_p,
1069 >                     const struct Client *target_p)
1070 > {
1071 >  unsigned int idle = 0;
1072 >  unsigned int min_idle = 0;
1073 >  unsigned int max_idle = 0;
1074 >  const struct ClassItem *const class = get_class_ptr(&target_p->connection->confs);
1075 >
1076 >  if (!(class->flags & CLASS_FLAGS_FAKE_IDLE) || target_p == source_p)
1077 >    return CurrentTime - target_p->connection->last_privmsg;
1078 >
1079 >  if (HasUMode(source_p, UMODE_OPER) &&
1080 >      !(class->flags & CLASS_FLAGS_HIDE_IDLE_FROM_OPERS))
1081 >    return CurrentTime - target_p->connection->last_privmsg;
1082 >
1083 >  min_idle = class->min_idle;
1084 >  max_idle = class->max_idle;
1085 >
1086 >  if (min_idle == max_idle)
1087 >    return min_idle;
1088  
1089 <  DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->localClient->acceptlist.head)
1090 <    del_accept(ptr->data, client_p);
1089 >  if (class->flags & CLASS_FLAGS_RANDOM_IDLE)
1090 >    idle = genrand_int32();
1091 >  else
1092 >    idle = CurrentTime - target_p->connection->last_privmsg;
1093 >
1094 >  if (!max_idle)
1095 >    idle = 0;
1096 >  else
1097 >    idle %= max_idle;
1098 >
1099 >  if (idle < min_idle)
1100 >    idle = min_idle + (idle % (max_idle - min_idle));
1101 >
1102 >  return idle;
1103 > }
1104 >
1105 > /* client_init()
1106 > *
1107 > * inputs       - NONE
1108 > * output       - NONE
1109 > * side effects - initialize client free memory
1110 > */
1111 > void
1112 > client_init(void)
1113 > {
1114 >  static struct event event_ping =
1115 >  {
1116 >    .name = "check_pings",
1117 >    .handler = check_pings,
1118 >    .when = 5
1119 >  };
1120 >
1121 >  client_pool = mp_pool_new(sizeof(struct Client), MP_CHUNK_SIZE_CLIENT);
1122 >  connection_pool = mp_pool_new(sizeof(struct Connection), MP_CHUNK_SIZE_CONNECTION);
1123 >  event_add(&event_ping, NULL);
1124   }

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