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Comparing ircd-hybrid/trunk/src/s_serv.c (file contents):
Revision 1834 by michael, Fri Apr 19 19:50:27 2013 UTC vs.
Revision 3335 by michael, Thu Apr 17 18:55:31 2014 UTC

# Line 1 | Line 1
1   /*
2 < *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 < *  s_serv.c: Server related functions.
2 > *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3   *
4 < *  Copyright (C) 2005 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 s_serv.c
23 > * \brief Server related functions.
24 > * \version $Id$
25   */
26  
27   #include "stdinc.h"
# Line 28 | Line 30
30   #include "rsa.h"
31   #endif
32   #include "list.h"
31 #include "channel.h"
32 #include "channel_mode.h"
33   #include "client.h"
34 #include "dbuf.h"
34   #include "event.h"
36 #include "fdlist.h"
35   #include "hash.h"
36   #include "irc_string.h"
37   #include "ircd.h"
# Line 41 | Line 39
39   #include "s_bsd.h"
40   #include "numeric.h"
41   #include "packet.h"
44 #include "irc_res.h"
42   #include "conf.h"
43   #include "s_serv.h"
44   #include "log.h"
48 #include "s_misc.h"
45   #include "s_user.h"
46   #include "send.h"
47   #include "memory.h"
48 < #include "channel.h" /* chcap_usage_counts stuff...*/
48 > #include "channel.h"
49   #include "parse.h"
50  
51   #define MIN_CONN_FREQ 300
52  
53 + dlink_list flatten_links;
54   static dlink_list cap_list = { NULL, NULL, 0 };
58 static void server_burst(struct Client *);
59 static void burst_all(struct Client *);
60 static void send_tb(struct Client *client_p, struct Channel *chptr);
61
55   static CNCB serv_connect_callback;
56  
64 static void burst_members(struct Client *, struct Channel *);
57  
58   /*
59   * write_links_file
# Line 72 | Line 64 | static void burst_members(struct Client
64   *                but in no particular order.
65   */
66   void
67 < write_links_file(void* notused)
67 > write_links_file(void *notused)
68   {
69 <  MessageFileLine *next_mptr = NULL;
70 <  MessageFileLine *mptr = NULL;
71 <  MessageFileLine *currentMessageLine = NULL;
80 <  MessageFileLine *newMessageLine = NULL;
81 <  MessageFile *MessageFileptr = &ConfigFileEntry.linksfile;
82 <  FILE *file;
83 <  char buff[512];
84 <  dlink_node *ptr;
69 >  FILE *file = NULL;
70 >  dlink_node *ptr = NULL, *ptr_next = NULL;
71 >  char buff[IRCD_BUFSIZE] = "";
72  
73 <  if ((file = fopen(MessageFileptr->fileName, "w")) == NULL)
73 >  if ((file = fopen(LIPATH, "w")) == NULL)
74      return;
75  
76 <  for (mptr = MessageFileptr->contentsOfFile; mptr; mptr = next_mptr)
76 >  DLINK_FOREACH_SAFE(ptr, ptr_next, flatten_links.head)
77    {
78 <    next_mptr = mptr->next;
79 <    MyFree(mptr);
78 >    dlinkDelete(ptr, &flatten_links);
79 >    MyFree(ptr->data);
80 >    free_dlink_node(ptr);
81    }
82  
95  MessageFileptr->contentsOfFile = NULL;
96
83    DLINK_FOREACH(ptr, global_serv_list.head)
84    {
85      const struct Client *target_p = ptr->data;
86  
87 <    /* skip ourselves, we send ourselves in /links */
88 <    if (IsMe(target_p))
87 >    /*
88 >     * Skip hidden servers, aswell as ourselves, since we already send
89 >     * ourselves in /links
90 >     */
91 >    if (IsHidden(target_p) || IsMe(target_p))
92        continue;
93  
94 <    /* skip hidden servers */
106 <    if (IsHidden(target_p))
94 >    if (HasFlag(target_p, FLAGS_SERVICE) && ConfigServerHide.hide_services)
95        continue;
96  
109    newMessageLine = MyMalloc(sizeof(MessageFileLine));
110
97      /*
98       * Attempt to format the file in such a way it follows the usual links output
99       * ie  "servername uplink :hops info"
100       * Mostly for aesthetic reasons - makes it look pretty in mIRC ;)
101       * - madmax
102       */
103 <    snprintf(newMessageLine->line, sizeof(newMessageLine->line), "%s %s :1 %s",
104 <             target_p->name, me.name, target_p->info);
105 <
106 <    if (MessageFileptr->contentsOfFile)
107 <    {
122 <      if (currentMessageLine)
123 <        currentMessageLine->next = newMessageLine;
124 <      currentMessageLine = newMessageLine;
125 <    }
126 <    else
127 <    {
128 <      MessageFileptr->contentsOfFile = newMessageLine;
129 <      currentMessageLine = newMessageLine;
130 <    }
103 >    snprintf(buff, sizeof(buff), "%s %s :1 %s",   target_p->name,
104 >             me.name, target_p->info);
105 >    dlinkAddTail(xstrdup(buff), make_dlink_node(), &flatten_links);
106 >    snprintf(buff, sizeof(buff), "%s %s :1 %s\n", target_p->name,
107 >             me.name, target_p->info);
108  
132    snprintf(buff, sizeof(buff), "%s %s :1 %s\n",
133             target_p->name, me.name, target_p->info);
109      fputs(buff, file);
110    }
111  
112    fclose(file);
113   }
114  
115 + void
116 + read_links_file(void)
117 + {
118 +  FILE *file = NULL;
119 +  char *p = NULL;
120 +  char buff[IRCD_BUFSIZE] = "";
121 +
122 +  if ((file = fopen(LIPATH, "r")) == NULL)
123 +    return;
124 +
125 +  while (fgets(buff, sizeof(buff), file))
126 +  {
127 +    if ((p = strchr(buff, '\n')))
128 +      *p = '\0';
129 +
130 +    dlinkAddTail(xstrdup(buff), make_dlink_node(), &flatten_links);
131 +  }
132 +
133 +  fclose(file);
134 + }
135 +
136   /* hunt_server()
137   *      Do the basic thing in delivering the message (command)
138   *      across the relays to the specific server (server) for
# Line 157 | Line 153 | write_links_file(void* notused)
153   *      returns: (see #defines)
154   */
155   int
156 < hunt_server(struct Client *client_p, struct Client *source_p, const char *command,
157 <            int server, int parc, char *parv[])
156 > hunt_server(struct Client *source_p, const char *command,
157 >            const int server, const int parc, char *parv[])
158   {
159    struct Client *target_p = NULL;
160    struct Client *target_tmp = NULL;
# Line 179 | Line 175 | hunt_server(struct Client *client_p, str
175    if (MyClient(source_p))
176      target_p = hash_find_client(parv[server]);
177    else
178 <    target_p = find_person(client_p, parv[server]);
178 >    target_p = find_person(source_p, parv[server]);
179  
180    if (target_p)
181      if (target_p->from == source_p->from && !MyConnect(target_p))
# Line 189 | Line 185 | hunt_server(struct Client *client_p, str
185      if (target_p->from == source_p->from && !MyConnect(target_p))
186        target_p = NULL;
187  
192  collapse(parv[server]);
188    wilds = has_wildcards(parv[server]);
189  
190    /* Again, if there are no wild cards involved in the server
# Line 201 | Line 196 | hunt_server(struct Client *client_p, str
196      {
197        if (!(target_p = hash_find_server(parv[server])))
198        {
199 <        sendto_one(source_p, form_str(ERR_NOSUCHSERVER),
200 <                   me.name, source_p->name, parv[server]);
206 <        return(HUNTED_NOSUCH);
199 >        sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, parv[server]);
200 >        return HUNTED_NOSUCH;
201        }
202      }
203      else
# Line 218 | Line 212 | hunt_server(struct Client *client_p, str
212              continue;
213            target_p = ptr->data;
214  
215 <          if (IsRegistered(target_p) && (target_p != client_p))
215 >          if (IsRegistered(target_p) && (target_p != source_p->from))
216              break;
217          }
218        }
219      }
220    }
221  
222 <  if (target_p != NULL)
222 >  if (target_p)
223    {
224 <    if(!IsRegistered(target_p))
224 >    if (!IsRegistered(target_p))
225      {
226 <      sendto_one(source_p, form_str(ERR_NOSUCHSERVER),
233 <                 me.name, source_p->name, parv[server]);
226 >      sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, parv[server]);
227        return HUNTED_NOSUCH;
228      }
229  
# Line 241 | Line 234 | hunt_server(struct Client *client_p, str
234        parv[server] = target_p->name;
235  
236      /* This is a little kludgy but should work... */
237 <    if (IsClient(source_p) &&
245 <        ((MyConnect(target_p) && IsCapable(target_p, CAP_TS6)) ||
246 <         (!MyConnect(target_p) && IsCapable(target_p->from, CAP_TS6))))
247 <      parv[0] = ID(source_p);
248 <
249 <    sendto_one(target_p, command, parv[0],
237 >    sendto_one(target_p, command, ID_or_name(source_p, target_p),
238                 parv[1], parv[2], parv[3], parv[4],
239                 parv[5], parv[6], parv[7], parv[8]);
240 <    return(HUNTED_PASS);
241 <  }
240 >    return HUNTED_PASS;
241 >  }
242  
243 <  sendto_one(source_p, form_str(ERR_NOSUCHSERVER),
244 <             me.name, source_p->name, parv[server]);
257 <  return(HUNTED_NOSUCH);
243 >  sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, parv[server]);
244 >  return HUNTED_NOSUCH;
245   }
246  
247   /* try_connections()
# Line 271 | Line 258 | void
258   try_connections(void *unused)
259   {
260    dlink_node *ptr = NULL;
261 <  struct MaskItem *conf;
275 <  int confrq;
261 >  int confrq = 0;
262  
263    /* TODO: change this to set active flag to 0 when added to event! --Habeeb */
264    if (GlobalSetOptions.autoconn == 0)
# Line 280 | Line 266 | try_connections(void *unused)
266  
267    DLINK_FOREACH(ptr, server_items.head)
268    {
269 <    conf = ptr->data;
269 >    struct MaskItem *conf = ptr->data;
270  
271      assert(conf->type == CONF_SERVER);
272  
273 <    /* Also when already connecting! (update holdtimes) --SRB
273 >    /* Also when already connecting! (update holdtimes) --SRB
274       */
275      if (!conf->port ||!IsConfAllowAutoConn(conf))
276        continue;
# Line 305 | Line 291 | try_connections(void *unused)
291      {
292        confrq = conf->class->con_freq;
293        if (confrq < MIN_CONN_FREQ)
294 <        confrq = MIN_CONN_FREQ;
294 >        confrq = MIN_CONN_FREQ;
295      }
296  
297      conf->until = CurrentTime + confrq;
298  
299 <    /* Found a CONNECT config with port specified, scan clients
299 >    /*
300 >     * Found a CONNECT config with port specified, scan clients
301       * and see if this server is already connected?
302       */
303 <    if (hash_find_server(conf->name) != NULL)
303 >    if (hash_find_server(conf->name))
304        continue;
305  
306      if (conf->class->ref_count < conf->class->max_total)
307      {
308        /* Go to the end of the list, if not already last */
309 <      if (ptr->next != NULL)
309 >      if (ptr->next)
310        {
311          dlinkDelete(ptr, &server_items);
312          dlinkAddTail(conf, &conf->node, &server_items);
# Line 328 | Line 315 | try_connections(void *unused)
315        if (find_servconn_in_progress(conf->name))
316          return;
317  
318 <      /* We used to only print this if serv_connect() actually
318 >      /*
319 >       * We used to only print this if serv_connect() actually
320         * succeeded, but since comm_tcp_connect() can call the callback
321         * immediately if there is an error, we were getting error messages
322         * in the wrong order. SO, we just print out the activated line,
# Line 370 | Line 358 | valid_servname(const char *name)
358        ++dots;
359    }
360  
361 <  return dots != 0 && length <= HOSTLEN;
361 >  return dots && length <= HOSTLEN;
362   }
363  
364   int
# Line 381 | Line 369 | check_server(const char *name, struct Cl
369    struct MaskItem *server_conf = NULL;
370    int error = -1;
371  
372 <  assert(client_p != NULL);
372 >  assert(client_p);
373  
374    /* loop through looking for all possible connect items that might work */
375    DLINK_FOREACH(ptr, server_items.head)
# Line 395 | Line 383 | check_server(const char *name, struct Cl
383  
384      /* XXX: Fix me for IPv6                    */
385      /* XXX sockhost is the IPv4 ip as a string */
386 <    if (!match(conf->host, client_p->host) ||
386 >    if (!match(conf->host, client_p->host) ||
387          !match(conf->host, client_p->sockhost))
388      {
389        error = -2;
# Line 403 | Line 391 | check_server(const char *name, struct Cl
391        if (!match_conf_password(client_p->localClient->passwd, conf))
392          return -2;
393  
394 +      if (!EmptyString(conf->certfp))
395 +        if (EmptyString(client_p->certfp) || strcasecmp(client_p->certfp, conf->certfp))
396 +          return -4;
397 +
398        server_conf = conf;
399      }
400    }
401  
402    if (server_conf == NULL)
403 <    return(error);
403 >    return error;
404  
405    attach_conf(client_p, server_conf);
406  
407  
408 <  if (server_conf != NULL)
408 >  if (server_conf)
409    {
410      struct sockaddr_in *v4;
411   #ifdef IPV6
# Line 422 | Line 414 | check_server(const char *name, struct Cl
414      switch (server_conf->aftype)
415      {
416   #ifdef IPV6
417 <      case AF_INET6:
417 >      case AF_INET6:
418          v6 = (struct sockaddr_in6 *)&server_conf->addr;
419  
420          if (IN6_IS_ADDR_UNSPECIFIED(&v6->sin6_addr))
# Line 433 | Line 425 | check_server(const char *name, struct Cl
425          v4 = (struct sockaddr_in *)&server_conf->addr;
426  
427          if (v4->sin_addr.s_addr == INADDR_NONE)
428 <          memcpy(&server_conf->addr, &client_p->localClient->ip, sizeof(struct irc_ssaddr));
428 >          memcpy(&server_conf->addr, &client_p->localClient->ip, sizeof(struct irc_ssaddr));
429          break;
430      }
431    }
432  
433 <  return(0);
433 >  return 0;
434   }
435  
436   /* add_capability()
# Line 472 | Line 464 | add_capability(const char *capab_name, i
464   int
465   delete_capability(const char *capab_name)
466   {
467 <  dlink_node *ptr;
476 <  dlink_node *next_ptr;
477 <  struct Capability *cap;
467 >  dlink_node *ptr = NULL, *ptr_next = NULL;
468  
469 <  DLINK_FOREACH_SAFE(ptr, next_ptr, cap_list.head)
469 >  DLINK_FOREACH_SAFE(ptr, ptr_next, cap_list.head)
470    {
471 <    cap = ptr->data;
471 >    struct Capability *cap = ptr->data;
472  
473 <    if (cap->cap != 0)
473 >    if (cap->cap)
474      {
475 <      if (irccmp(cap->name, capab_name) == 0)
475 >      if (!irccmp(cap->name, capab_name))
476        {
477 <        default_server_capabs &= ~(cap->cap);
478 <        dlinkDelete(ptr, &cap_list);
479 <        MyFree(cap->name);
480 <        cap->name = NULL;
491 <        MyFree(cap);
477 >        default_server_capabs &= ~(cap->cap);
478 >        dlinkDelete(ptr, &cap_list);
479 >        MyFree(cap->name);
480 >        MyFree(cap);
481        }
482      }
483    }
# Line 503 | Line 492 | delete_capability(const char *capab_name
492   * output       - 0 if not found CAPAB otherwise
493   * side effects - none
494   */
495 < int
495 > unsigned int
496   find_capability(const char *capab)
497   {
498    const dlink_node *ptr = NULL;
# Line 530 | Line 519 | find_capability(const char *capab)
519   void
520   send_capabilities(struct Client *client_p, int cap_can_send)
521   {
522 <  struct Capability *cap=NULL;
523 <  char msgbuf[IRCD_BUFSIZE];
535 <  char *t;
522 >  char msgbuf[IRCD_BUFSIZE] = "";
523 >  char *t = msgbuf;
524    int tl;
525 <  dlink_node *ptr;
538 <
539 <  t = msgbuf;
525 >  dlink_node *ptr = NULL;
526  
527    DLINK_FOREACH(ptr, cap_list.head)
528    {
529 <    cap = ptr->data;
529 >    struct Capability *cap = ptr->data;
530  
531      if (cap->cap & (cap_can_send|default_server_capabs))
532      {
# Line 553 | Line 539 | send_capabilities(struct Client *client_
539    sendto_one(client_p, "CAPAB :%s", msgbuf);
540   }
541  
556 /* sendnick_TS()
557 *
558 * inputs       - client (server) to send nick towards
559 *          - client to send nick for
560 * output       - NONE
561 * side effects - NICK message is sent towards given client_p
562 */
563 void
564 sendnick_TS(struct Client *client_p, struct Client *target_p)
565 {
566  static char ubuf[12];
567
568  if (!IsClient(target_p))
569    return;
570
571  send_umode(NULL, target_p, 0, SEND_UMODES, ubuf);
572
573  if (ubuf[0] == '\0')
574  {
575    ubuf[0] = '+';
576    ubuf[1] = '\0';
577  }
578
579  if (IsCapable(client_p, CAP_SVS))
580  {
581    if (HasID(target_p) && IsCapable(client_p, CAP_TS6))
582      sendto_one(client_p, ":%s UID %s %d %lu %s %s %s %s %s %s :%s",
583                 target_p->servptr->id,
584                 target_p->name, target_p->hopcount + 1,
585                 (unsigned long) target_p->tsinfo,
586                 ubuf, target_p->username, target_p->host,
587                 (MyClient(target_p) && IsIPSpoof(target_p)) ?
588                 "0" : target_p->sockhost, target_p->id,
589                 target_p->svid, target_p->info);
590    else
591      sendto_one(client_p, "NICK %s %d %lu %s %s %s %s %s :%s",
592                 target_p->name, target_p->hopcount + 1,
593                 (unsigned long) target_p->tsinfo,
594                 ubuf, target_p->username, target_p->host,
595                 target_p->servptr->name, target_p->svid,
596                 target_p->info);
597  }
598  else
599  {
600    if (HasID(target_p) && IsCapable(client_p, CAP_TS6))
601      sendto_one(client_p, ":%s UID %s %d %lu %s %s %s %s %s :%s",
602                 target_p->servptr->id,
603                 target_p->name, target_p->hopcount + 1,
604                 (unsigned long) target_p->tsinfo,
605                 ubuf, target_p->username, target_p->host,
606                 (MyClient(target_p) && IsIPSpoof(target_p)) ?
607                 "0" : target_p->sockhost, target_p->id, target_p->info);
608    else
609      sendto_one(client_p, "NICK %s %d %lu %s %s %s %s :%s",
610                 target_p->name, target_p->hopcount + 1,
611                 (unsigned long) target_p->tsinfo,
612                 ubuf, target_p->username, target_p->host,
613                 target_p->servptr->name, target_p->info);
614  }
615
616  if (target_p->away[0])
617    sendto_one(client_p, ":%s AWAY :%s", ID_or_name(target_p, client_p),
618               target_p->away);
619
620 }
621
542   /*
543   * show_capabilities - show current server capabilities
544   *
# Line 627 | Line 547 | sendnick_TS(struct Client *client_p, str
547   * side effects - build up string representing capabilities of server listed
548   */
549   const char *
550 < show_capabilities(struct Client *target_p)
550 > show_capabilities(const struct Client *target_p)
551   {
552 <  static char msgbuf[IRCD_BUFSIZE];
553 <  char *t = msgbuf;
634 <  dlink_node *ptr;
552 >  static char msgbuf[IRCD_BUFSIZE] = "";
553 >  const dlink_node *ptr = NULL;
554  
555 <  t += sprintf(msgbuf, "TS ");
555 >  strlcpy(msgbuf, "TS", sizeof(msgbuf));
556  
557    DLINK_FOREACH(ptr, cap_list.head)
558    {
559      const struct Capability *cap = ptr->data;
560  
561 <    if (IsCapable(target_p, cap->cap))
562 <      t += sprintf(t, "%s ", cap->name);
561 >    if (!IsCapable(target_p, cap->cap))
562 >      continue;
563 >
564 >    strlcat(msgbuf,       " ", sizeof(msgbuf));
565 >    strlcat(msgbuf, cap->name, sizeof(msgbuf));
566    }
567  
646  *(t - 1) = '\0';
568    return msgbuf;
569   }
570  
# Line 663 | Line 584 | make_server(struct Client *client_p)
584    return client_p->serv;
585   }
586  
666 /* server_estab()
667 *
668 * inputs       - pointer to a struct Client
669 * output       -
670 * side effects -
671 */
672 void
673 server_estab(struct Client *client_p)
674 {
675  struct Client *target_p;
676  struct MaskItem *conf = NULL;
677  char *host;
678  const char *inpath;
679  static char inpath_ip[HOSTLEN * 2 + USERLEN + 6];
680  dlink_node *ptr;
681 #ifdef HAVE_LIBCRYPTO
682  const COMP_METHOD *compression = NULL, *expansion = NULL;
683 #endif
684
685  assert(client_p != NULL);
686
687  strlcpy(inpath_ip, get_client_name(client_p, SHOW_IP), sizeof(inpath_ip));
688
689  inpath = get_client_name(client_p, MASK_IP); /* "refresh" inpath with host */
690  host   = client_p->name;
691
692  if ((conf = find_conf_name(&client_p->localClient->confs, host, CONF_SERVER))
693      == NULL)
694  {
695    /* This shouldn't happen, better tell the ops... -A1kmm */
696    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
697                         "Warning: Lost connect{} block "
698                         "for server %s(this shouldn't happen)!", host);
699    exit_client(client_p, &me, "Lost connect{} block!");
700    return;
701  }
702
703  MyFree(client_p->localClient->passwd);
704  client_p->localClient->passwd = NULL;
705
706  /* Its got identd, since its a server */
707  SetGotId(client_p);
708
709  /* If there is something in the serv_list, it might be this
710   * connecting server..
711   */
712  if (!ServerInfo.hub && serv_list.head)  
713  {
714    if (client_p != serv_list.head->data || serv_list.head->next)
715    {
716      ++ServerStats.is_ref;
717      sendto_one(client_p, "ERROR :I'm a leaf not a hub");
718      exit_client(client_p, &me, "I'm a leaf");
719      return;
720    }
721  }
722
723  if (IsUnknown(client_p))
724  {
725    /* jdc -- 1.  Use EmptyString(), not [0] index reference.
726     *        2.  Check conf->spasswd, not conf->passwd.
727     */
728    if (!EmptyString(conf->spasswd))
729      sendto_one(client_p, "PASS %s TS %d %s",
730                 conf->spasswd, TS_CURRENT, me.id);
731
732    send_capabilities(client_p, 0);
733
734    sendto_one(client_p, "SERVER %s 1 :%s%s",
735               me.name, ConfigServerHide.hidden ? "(H) " : "", me.info);
736  }
737
738  sendto_one(client_p, "SVINFO %d %d 0 :%lu", TS_CURRENT, TS_MIN,
739             (unsigned long)CurrentTime);
740
741  /* assumption here is if they passed the correct TS version, they also passed an SID */
742  if (IsCapable(client_p, CAP_TS6))
743    hash_add_id(client_p);
744
745  /* XXX Does this ever happen? I don't think so -db */
746  detach_conf(client_p, CONF_OPER);
747
748  /* *WARNING*
749  **    In the following code in place of plain server's
750  **    name we send what is returned by get_client_name
751  **    which may add the "sockhost" after the name. It's
752  **    *very* *important* that there is a SPACE between
753  **    the name and sockhost (if present). The receiving
754  **    server will start the information field from this
755  **    first blank and thus puts the sockhost into info.
756  **    ...a bit tricky, but you have been warned, besides
757  **    code is more neat this way...  --msa
758  */
759  client_p->servptr = &me;
760
761  if (IsClosing(client_p))
762    return;
763
764  SetServer(client_p);
765
766  /* Update the capability combination usage counts. -A1kmm */
767  set_chcap_usage_counts(client_p);
768
769  /* Some day, all these lists will be consolidated *sigh* */
770  dlinkAdd(client_p, &client_p->lnode, &me.serv->server_list);
771
772  assert(dlinkFind(&unknown_list, client_p));
773
774  dlink_move_node(&client_p->localClient->lclient_node,
775                  &unknown_list, &serv_list);
776
777  Count.myserver++;
778
779  dlinkAdd(client_p, make_dlink_node(), &global_serv_list);
780  hash_add_client(client_p);
781
782  /* doesnt duplicate client_p->serv if allocated this struct already */
783  make_server(client_p);
784
785  /* fixing eob timings.. -gnp */
786  client_p->localClient->firsttime = CurrentTime;
787
788  if (find_matching_name_conf(CONF_SERVICE, client_p->name, NULL, NULL, 0))
789    AddFlag(client_p, FLAGS_SERVICE);
790
791  /* Show the real host/IP to admins */
792 #ifdef HAVE_LIBCRYPTO
793  if (client_p->localClient->fd.ssl)
794  {
795    compression = SSL_get_current_compression(client_p->localClient->fd.ssl);
796    expansion   = SSL_get_current_expansion(client_p->localClient->fd.ssl);
797
798    sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
799                         "Link with %s established: [SSL: %s, Compression/Expansion method: %s/%s] (Capabilities: %s)",
800                         inpath_ip, ssl_get_cipher(client_p->localClient->fd.ssl),
801                         compression ? SSL_COMP_get_name(compression) : "NONE",
802                         expansion ? SSL_COMP_get_name(expansion) : "NONE",
803                         show_capabilities(client_p));
804    /* Now show the masked hostname/IP to opers */
805    sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
806                         "Link with %s established: [SSL: %s, Compression/Expansion method: %s/%s] (Capabilities: %s)",
807                         inpath, ssl_get_cipher(client_p->localClient->fd.ssl),
808                         compression ? SSL_COMP_get_name(compression) : "NONE",
809                         expansion ? SSL_COMP_get_name(expansion) : "NONE",
810                         show_capabilities(client_p));
811    ilog(LOG_TYPE_IRCD, "Link with %s established: [SSL: %s, Compression/Expansion method: %s/%s] (Capabilities: %s)",
812         inpath_ip, ssl_get_cipher(client_p->localClient->fd.ssl),
813         compression ? SSL_COMP_get_name(compression) : "NONE",
814         expansion ? SSL_COMP_get_name(expansion) : "NONE",
815         show_capabilities(client_p));
816  }
817  else
818 #endif
819  {
820    sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
821                         "Link with %s established: (Capabilities: %s)",
822                         inpath_ip, show_capabilities(client_p));
823    /* Now show the masked hostname/IP to opers */
824    sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
825                         "Link with %s established: (Capabilities: %s)",
826                         inpath, show_capabilities(client_p));
827    ilog(LOG_TYPE_IRCD, "Link with %s established: (Capabilities: %s)",
828         inpath_ip, show_capabilities(client_p));
829  }
830
831  fd_note(&client_p->localClient->fd, "Server: %s", client_p->name);
832
833  /* Old sendto_serv_but_one() call removed because we now
834  ** need to send different names to different servers
835  ** (domain name matching) Send new server to other servers.
836  */
837  DLINK_FOREACH(ptr, serv_list.head)
838  {
839    target_p = ptr->data;
840
841    if (target_p == client_p)
842      continue;
843
844    if (IsCapable(target_p, CAP_TS6) && HasID(client_p))
845      sendto_one(target_p, ":%s SID %s 2 %s :%s%s",
846                 me.id, client_p->name, client_p->id,
847                 IsHidden(client_p) ? "(H) " : "",
848                 client_p->info);
849    else
850      sendto_one(target_p,":%s SERVER %s 2 :%s%s",
851                 me.name, client_p->name,
852                 IsHidden(client_p) ? "(H) " : "",
853                 client_p->info);
854  }
855
856  /* Pass on my client information to the new server
857  **
858  ** First, pass only servers (idea is that if the link gets
859  ** cancelled beacause the server was already there,
860  ** there are no NICK's to be cancelled...). Of course,
861  ** if cancellation occurs, all this info is sent anyway,
862  ** and I guess the link dies when a read is attempted...? --msa
863  **
864  ** Note: Link cancellation to occur at this point means
865  ** that at least two servers from my fragment are building
866  ** up connection this other fragment at the same time, it's
867  ** a race condition, not the normal way of operation...
868  **
869  ** ALSO NOTE: using the get_client_name for server names--
870  **    see previous *WARNING*!!! (Also, original inpath
871  **    is destroyed...)
872  */
873
874  DLINK_FOREACH_PREV(ptr, global_serv_list.tail)
875  {
876    target_p = ptr->data;
877
878    /* target_p->from == target_p for target_p == client_p */
879    if (IsMe(target_p) || target_p->from == client_p)
880      continue;
881
882    if (IsCapable(client_p, CAP_TS6))
883    {
884      if (HasID(target_p))
885        sendto_one(client_p, ":%s SID %s %d %s :%s%s",
886                   ID(target_p->servptr), target_p->name, target_p->hopcount+1,
887                   target_p->id, IsHidden(target_p) ? "(H) " : "",
888                   target_p->info);
889      else  /* introducing non-ts6 server */
890        sendto_one(client_p, ":%s SERVER %s %d :%s%s",
891                   ID(target_p->servptr), target_p->name, target_p->hopcount+1,
892                   IsHidden(target_p) ? "(H) " : "", target_p->info);
893    }
894    else
895      sendto_one(client_p, ":%s SERVER %s %d :%s%s",
896                 target_p->servptr->name, target_p->name, target_p->hopcount+1,
897                 IsHidden(target_p) ? "(H) " : "", target_p->info);
898  }
899
900  server_burst(client_p);
901 }
902
903 /* server_burst()
904 *
905 * inputs       - struct Client pointer server
906 *              -
907 * output       - none
908 * side effects - send a server burst
909 * bugs         - still too long
910 */
911 static void
912 server_burst(struct Client *client_p)
913 {
914  /* Send it in the shortened format with the TS, if
915  ** it's a TS server; walk the list of channels, sending
916  ** all the nicks that haven't been sent yet for each
917  ** channel, then send the channel itself -- it's less
918  ** obvious than sending all nicks first, but on the
919  ** receiving side memory will be allocated more nicely
920  ** saving a few seconds in the handling of a split
921  ** -orabidoo
922  */
923
924  burst_all(client_p);
925
926  /* EOB stuff is now in burst_all */
927  /* Always send a PING after connect burst is done */
928  sendto_one(client_p, "PING :%s", ID_or_name(&me, client_p));
929 }
930
931 /* burst_all()
932 *
933 * inputs       - pointer to server to send burst to
934 * output       - NONE
935 * side effects - complete burst of channels/nicks is sent to client_p
936 */
937 static void
938 burst_all(struct Client *client_p)
939 {
940  dlink_node *ptr = NULL;
941
942  DLINK_FOREACH(ptr, global_channel_list.head)
943  {
944    struct Channel *chptr = ptr->data;
945
946    if (dlink_list_length(&chptr->members) != 0)
947    {
948      burst_members(client_p, chptr);
949      send_channel_modes(client_p, chptr);
950
951      if (IsCapable(client_p, CAP_TBURST))
952        send_tb(client_p, chptr);
953    }
954  }
955
956  /* also send out those that are not on any channel
957   */
958  DLINK_FOREACH(ptr, global_client_list.head)
959  {
960    struct Client *target_p = ptr->data;
961
962    if (!HasFlag(target_p, FLAGS_BURSTED) && target_p->from != client_p)
963      sendnick_TS(client_p, target_p);
964    
965    DelFlag(target_p, FLAGS_BURSTED);
966  }
967
968  /* We send the time we started the burst, and let the remote host determine an EOB time,
969  ** as otherwise we end up sending a EOB of 0   Sending here means it gets sent last -- fl
970  */
971  /* Its simpler to just send EOB and use the time its been connected.. --fl_ */
972  if (IsCapable(client_p, CAP_EOB))
973    sendto_one(client_p, ":%s EOB", ID_or_name(&me, client_p));
974 }
975
976 /*
977 * send_tb
978 *
979 * inputs       - pointer to Client
980 *              - pointer to channel
981 * output       - NONE
982 * side effects - Called on a server burst when
983 *                server is CAP_TBURST capable
984 */
985 static void
986 send_tb(struct Client *client_p, struct Channel *chptr)
987 {
988  /*
989   * We may also send an empty topic here, but only if topic_time isn't 0,
990   * i.e. if we had a topic that got unset.  This is required for syncing
991   * topics properly.
992   *
993   * Imagine the following scenario: Our downlink introduces a channel
994   * to us with a TS that is equal to ours, but the channel topic on
995   * their side got unset while the servers were in splitmode, which means
996   * their 'topic' is newer.  They simply wanted to unset it, so we have to
997   * deal with it in a more sophisticated fashion instead of just resetting
998   * it to their old topic they had before.  Read m_tburst.c:ms_tburst
999   * for further information   -Michael
1000   */
1001  if (chptr->topic_time != 0)
1002    sendto_one(client_p, ":%s TBURST %lu %s %lu %s :%s",
1003               ID_or_name(&me, client_p),
1004               (unsigned long)chptr->channelts, chptr->chname,
1005               (unsigned long)chptr->topic_time,
1006               chptr->topic_info,
1007               chptr->topic);
1008 }
1009
1010 /* burst_members()
1011 *
1012 * inputs       - pointer to server to send members to
1013 *              - dlink_list pointer to membership list to send
1014 * output       - NONE
1015 * side effects -
1016 */
1017 static void
1018 burst_members(struct Client *client_p, struct Channel *chptr)
1019 {
1020  struct Client *target_p;
1021  struct Membership *ms;
1022  dlink_node *ptr;
1023
1024  DLINK_FOREACH(ptr, chptr->members.head)
1025  {
1026    ms       = ptr->data;
1027    target_p = ms->client_p;
1028
1029    if (!HasFlag(target_p, FLAGS_BURSTED))
1030    {
1031      AddFlag(target_p, FLAGS_BURSTED);
1032
1033      if (target_p->from != client_p)
1034        sendnick_TS(client_p, target_p);
1035    }
1036  }
1037 }
1038
587   /* New server connection code
588   * Based upon the stuff floating about in s_bsd.c
589   *   -- adrian
# Line 1043 | Line 591 | burst_members(struct Client *client_p, s
591  
592   /* serv_connect() - initiate a server connection
593   *
594 < * inputs       - pointer to conf
594 > * inputs       - pointer to conf
595   *              - pointer to client doing the connect
596   * output       -
597   * side effects -
# Line 1060 | Line 608 | burst_members(struct Client *client_p, s
608   int
609   serv_connect(struct MaskItem *conf, struct Client *by)
610   {
611 <  struct Client *client_p;
612 <  char buf[HOSTIPLEN + 1];
611 >  struct Client *client_p = NULL;
612 >  char buf[HOSTIPLEN + 1] = "";
613  
614    /* conversion structs */
615    struct sockaddr_in *v4;
1068  /* Make sure conf is useful */
1069  assert(conf != NULL);
616  
617 +  /* Make sure conf is useful */
618 +  assert(conf);
619  
620    getnameinfo((struct sockaddr *)&conf->addr, conf->addr.ss_len,
621                buf, sizeof(buf), NULL, 0, NI_NUMERICHOST);
# Line 1080 | Line 628 | serv_connect(struct MaskItem *conf, stru
628      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
629                           "Error connecting to %s: DNS lookup for connect{} in progress.",
630                           conf->name);
631 <    return (0);
631 >    return 0;
632    }
633  
634    if (conf->dns_failed)
# Line 1088 | Line 636 | serv_connect(struct MaskItem *conf, stru
636      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
637                           "Error connecting to %s: DNS lookup for connect{} failed.",
638                           conf->name);
639 <    return (0);
639 >    return 0;
640    }
641  
642    /* Make sure this server isn't already connected
643     * Note: conf should ALWAYS be a valid C: line
644     */
645 <  if ((client_p = hash_find_server(conf->name)) != NULL)
646 <  {
645 >  if ((client_p = hash_find_server(conf->name)))
646 >  {
647      sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
648 <                         "Server %s already present from %s",
649 <                         conf->name, get_client_name(client_p, SHOW_IP));
648 >                         "Server %s already present from %s",
649 >                         conf->name, get_client_name(client_p, SHOW_IP));
650      sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
651 <                         "Server %s already present from %s",
652 <                         conf->name, get_client_name(client_p, MASK_IP));
651 >                         "Server %s already present from %s",
652 >                         conf->name, get_client_name(client_p, MASK_IP));
653      if (by && IsClient(by) && !MyClient(by))
654 <      sendto_one(by, ":%s NOTICE %s :Server %s already present from %s",
655 <                 me.name, by->name, conf->name,
656 <                 get_client_name(client_p, MASK_IP));
1109 <    return (0);
654 >      sendto_one_notice(by, &me, ":Server %s already present from %s",
655 >                        conf->name, get_client_name(client_p, MASK_IP));
656 >    return 0;
657    }
658 <    
658 >
659    /* Create a local client */
660    client_p = make_client(NULL);
661  
# Line 1119 | Line 666 | serv_connect(struct MaskItem *conf, stru
666    /* We already converted the ip once, so lets use it - stu */
667    strlcpy(client_p->sockhost, buf, sizeof(client_p->sockhost));
668  
669 <  /* create a socket for the server connection */
670 <  if (comm_open(&client_p->localClient->fd, conf->addr.ss.ss_family,
1124 <                SOCK_STREAM, 0, NULL) < 0)
669 >  /* create a socket for the server connection */
670 >  if (comm_open(&client_p->localClient->fd, conf->addr.ss.ss_family, SOCK_STREAM, 0, NULL) < 0)
671    {
672      /* Eek, failure to create the socket */
673 <    report_error(L_ALL,
674 <                 "opening stream socket to %s: %s", conf->name, errno);
673 >    report_error(L_ALL, "opening stream socket to %s: %s", conf->name, errno);
674 >
675      SetDead(client_p);
676 <    exit_client(client_p, &me, "Connection failed");
677 <    return (0);
676 >    exit_client(client_p, "Connection failed");
677 >    return 0;
678    }
679  
680    /* servernames are always guaranteed under HOSTLEN chars */
# Line 1140 | Line 686 | serv_connect(struct MaskItem *conf, stru
686    if (!attach_connect_block(client_p, conf->name, conf->host))
687    {
688      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
689 <                         "Host %s is not enabled for connecting: no connect{} block",
690 <                         conf->name);
691 <    if (by && IsClient(by) && !MyClient(by))  
692 <      sendto_one(by, ":%s NOTICE %s :Connect to host %s failed.",
693 <                 me.name, by->name, client_p->name);
689 >                         "Host %s is not enabled for connecting: no connect{} block",
690 >                         conf->name);
691 >    if (by && IsClient(by) && !MyClient(by))
692 >      sendto_one_notice(by, &me, ":Connect to host %s failed.", client_p->name);
693 >
694      SetDead(client_p);
695 <    exit_client(client_p, client_p, "Connection failed");
696 <    return (0);
695 >    exit_client(client_p, "Connection failed");
696 >    return 0;
697    }
698  
699    /* at this point we have a connection in progress and C/N lines
# Line 1165 | Line 711 | serv_connect(struct MaskItem *conf, stru
711  
712    SetConnecting(client_p);
713    dlinkAdd(client_p, &client_p->node, &global_client_list);
714 <  /* from def_fam */
714 >
715    client_p->localClient->aftype = conf->aftype;
716  
717    /* Now, initiate the connection */
718 <  /* XXX assume that a non 0 type means a specific bind address
718 >  /* XXX assume that a non 0 type means a specific bind address
719     * for this connect.
720     */
721    switch (conf->aftype)
722    {
723      case AF_INET:
724        v4 = (struct sockaddr_in*)&conf->bind;
725 <      if (v4->sin_addr.s_addr != 0)
725 >      if (v4->sin_addr.s_addr)
726        {
727          struct irc_ssaddr ipn;
728          memset(&ipn, 0, sizeof(struct irc_ssaddr));
729          ipn.ss.ss_family = AF_INET;
730          ipn.ss_port = 0;
731          memcpy(&ipn, &conf->bind, sizeof(struct irc_ssaddr));
732 <        comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port,
733 <                         (struct sockaddr *)&ipn, ipn.ss_len,
734 <                         serv_connect_callback, client_p, conf->aftype,
735 <                         CONNECTTIMEOUT);
732 >        comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port,
733 >                         (struct sockaddr *)&ipn, ipn.ss_len,
734 >                         serv_connect_callback, client_p, conf->aftype,
735 >                         CONNECTTIMEOUT);
736        }
737        else if (ServerInfo.specific_ipv4_vhost)
738        {
# Line 1198 | Line 744 | serv_connect(struct MaskItem *conf, stru
744          comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port,
745                           (struct sockaddr *)&ipn, ipn.ss_len,
746                           serv_connect_callback, client_p, conf->aftype,
747 <                         CONNECTTIMEOUT);
747 >                         CONNECTTIMEOUT);
748        }
749        else
750 <        comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port,
751 <                         NULL, 0, serv_connect_callback, client_p, conf->aftype,
750 >        comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port,
751 >                         NULL, 0, serv_connect_callback, client_p, conf->aftype,
752                           CONNECTTIMEOUT);
753        break;
754   #ifdef IPV6
755      case AF_INET6:
756        {
757 <        struct irc_ssaddr ipn;
758 <        struct sockaddr_in6 *v6;
759 <        struct sockaddr_in6 *v6conf;
760 <
761 <        memset(&ipn, 0, sizeof(struct irc_ssaddr));
762 <        v6conf = (struct sockaddr_in6 *)&conf->bind;
763 <        v6 = (struct sockaddr_in6 *)&ipn;
764 <
765 <        if (memcmp(&v6conf->sin6_addr, &v6->sin6_addr,
766 <                   sizeof(struct in6_addr)) != 0)
767 <        {
768 <          memcpy(&ipn, &conf->bind, sizeof(struct irc_ssaddr));
769 <          ipn.ss.ss_family = AF_INET6;
770 <          ipn.ss_port = 0;
771 <          comm_connect_tcp(&client_p->localClient->fd,
772 <                           conf->host, conf->port,
773 <                           (struct sockaddr *)&ipn, ipn.ss_len,
774 <                           serv_connect_callback, client_p,
775 <                           conf->aftype, CONNECTTIMEOUT);
776 <        }
1231 <        else if (ServerInfo.specific_ipv6_vhost)
757 >        struct irc_ssaddr ipn;
758 >        struct sockaddr_in6 *v6;
759 >        struct sockaddr_in6 *v6conf;
760 >
761 >        memset(&ipn, 0, sizeof(struct irc_ssaddr));
762 >        v6conf = (struct sockaddr_in6 *)&conf->bind;
763 >        v6 = (struct sockaddr_in6 *)&ipn;
764 >
765 >        if (memcmp(&v6conf->sin6_addr, &v6->sin6_addr, sizeof(struct in6_addr)))
766 >        {
767 >          memcpy(&ipn, &conf->bind, sizeof(struct irc_ssaddr));
768 >          ipn.ss.ss_family = AF_INET6;
769 >          ipn.ss_port = 0;
770 >          comm_connect_tcp(&client_p->localClient->fd,
771 >                           conf->host, conf->port,
772 >                           (struct sockaddr *)&ipn, ipn.ss_len,
773 >                           serv_connect_callback, client_p,
774 >                           conf->aftype, CONNECTTIMEOUT);
775 >        }
776 >        else if (ServerInfo.specific_ipv6_vhost)
777          {
778 <          memcpy(&ipn, &ServerInfo.ip6, sizeof(struct irc_ssaddr));
779 <          ipn.ss.ss_family = AF_INET6;
780 <          ipn.ss_port = 0;
781 <          comm_connect_tcp(&client_p->localClient->fd,
782 <                           conf->host, conf->port,
783 <                           (struct sockaddr *)&ipn, ipn.ss_len,
784 <                           serv_connect_callback, client_p,
785 <                           conf->aftype, CONNECTTIMEOUT);
786 <        }
787 <        else
788 <          comm_connect_tcp(&client_p->localClient->fd,
789 <                           conf->host, conf->port,
790 <                           NULL, 0, serv_connect_callback, client_p,
791 <                           conf->aftype, CONNECTTIMEOUT);
778 >          memcpy(&ipn, &ServerInfo.ip6, sizeof(struct irc_ssaddr));
779 >          ipn.ss.ss_family = AF_INET6;
780 >          ipn.ss_port = 0;
781 >          comm_connect_tcp(&client_p->localClient->fd,
782 >                           conf->host, conf->port,
783 >                           (struct sockaddr *)&ipn, ipn.ss_len,
784 >                           serv_connect_callback, client_p,
785 >                           conf->aftype, CONNECTTIMEOUT);
786 >        }
787 >        else
788 >          comm_connect_tcp(&client_p->localClient->fd,
789 >                           conf->host, conf->port,
790 >                           NULL, 0, serv_connect_callback, client_p,
791 >                           conf->aftype, CONNECTTIMEOUT);
792        }
793   #endif
794    }
795 <  return (1);
795 >  return 1;
796   }
797  
798   #ifdef HAVE_LIBCRYPTO
# Line 1265 | Line 810 | finish_ssl_server_handshake(struct Clien
810      sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
811                           "Lost connect{} block for %s", get_client_name(client_p, MASK_IP));
812  
813 <    exit_client(client_p, &me, "Lost connect{} block");
813 >    exit_client(client_p, "Lost connect{} block");
814      return;
815    }
816  
817 <  /* jdc -- Check and send spasswd, not passwd. */
1273 <  if (!EmptyString(conf->spasswd))
1274 <    sendto_one(client_p, "PASS %s TS %d %s",
1275 <               conf->spasswd, TS_CURRENT, me.id);
817 >  sendto_one(client_p, "PASS %s TS %d %s", conf->spasswd, TS_CURRENT, me.id);
818  
819    send_capabilities(client_p, 0);
820  
# Line 1302 | Line 844 | finish_ssl_server_handshake(struct Clien
844   static void
845   ssl_server_handshake(fde_t *fd, struct Client *client_p)
846   {
847 <  int ret;
848 <  int err;
847 >  X509 *cert = NULL;
848 >  int ret = 0;
849  
850 <  ret = SSL_connect(client_p->localClient->fd.ssl);
1309 <
1310 <  if (ret <= 0)
850 >  if ((ret = SSL_connect(client_p->localClient->fd.ssl)) <= 0)
851    {
852 <    switch ((err = SSL_get_error(client_p->localClient->fd.ssl, ret)))
852 >    switch (SSL_get_error(client_p->localClient->fd.ssl, ret))
853      {
854        case SSL_ERROR_WANT_WRITE:
855          comm_setselect(&client_p->localClient->fd, COMM_SELECT_WRITE,
# Line 1325 | Line 865 | ssl_server_handshake(fde_t *fd, struct C
865          sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
866                               "Error connecting to %s: %s", client_p->name,
867                               sslerr ? sslerr : "unknown SSL error");
868 <        exit_client(client_p, client_p, "Error during SSL handshake");
868 >        exit_client(client_p, "Error during SSL handshake");
869          return;
870        }
871      }
872    }
873  
874 +  if ((cert = SSL_get_peer_certificate(client_p->localClient->fd.ssl)))
875 +  {
876 +    int res = SSL_get_verify_result(client_p->localClient->fd.ssl);
877 +    char buf[EVP_MAX_MD_SIZE * 2 + 1] = { '\0' };
878 +    unsigned char md[EVP_MAX_MD_SIZE] = { '\0' };
879 +
880 +    if (res == X509_V_OK || res == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN ||
881 +        res == X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE ||
882 +        res == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
883 +    {
884 +      unsigned int i = 0, n = 0;
885 +
886 +      if (X509_digest(cert, EVP_sha256(), md, &n))
887 +      {
888 +        for (; i < n; ++i)
889 +          snprintf(buf + 2 * i, 3, "%02X", md[i]);
890 +        client_p->certfp = xstrdup(buf);
891 +      }
892 +    }
893 +    else
894 +      ilog(LOG_TYPE_IRCD, "Server %s!%s@%s gave bad SSL client certificate: %d",
895 +           client_p->name, client_p->username, client_p->host, res);
896 +    X509_free(cert);
897 +  }
898 +
899    finish_ssl_server_handshake(client_p);
900   }
901  
# Line 1342 | Line 907 | ssl_connect_init(struct Client *client_p
907      ilog(LOG_TYPE_IRCD, "SSL_new() ERROR! -- %s",
908           ERR_error_string(ERR_get_error(), NULL));
909      SetDead(client_p);
910 <    exit_client(client_p, client_p, "SSL_new failed");
910 >    exit_client(client_p, "SSL_new failed");
911      return;
912    }
913  
# Line 1356 | Line 921 | ssl_connect_init(struct Client *client_p
921   #endif
922  
923   /* serv_connect_callback() - complete a server connection.
924 < *
924 > *
925   * This routine is called after the server connection attempt has
926   * completed. If unsucessful, an error is sent to ops and the client
927   * is closed. If sucessful, it goes through the initialisation/check
# Line 1370 | Line 935 | serv_connect_callback(fde_t *fd, int sta
935    struct MaskItem *conf = NULL;
936  
937    /* First, make sure its a real client! */
938 <  assert(client_p != NULL);
938 >  assert(client_p);
939    assert(&client_p->localClient->fd == fd);
940  
941    /* Next, for backward purposes, record the ip of the server */
942    memcpy(&client_p->localClient->ip, &fd->connect.hostaddr,
943           sizeof(struct irc_ssaddr));
944 +
945    /* Check the status */
946    if (status != COMM_OK)
947    {
# Line 1388 | Line 954 | serv_connect_callback(fde_t *fd, int sta
954                              client_p->name, comm_errstr(status));
955       else
956         sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
957 <                            "Error connecting to %s[%s]: %s", client_p->name,
958 <                            client_p->host, comm_errstr(status));
957 >                            "Error connecting to %s[%s]: %s", client_p->name,
958 >                            client_p->host, comm_errstr(status));
959  
960       sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
961 <                          "Error connecting to %s: %s",
962 <                          client_p->name, comm_errstr(status));
961 >                          "Error connecting to %s: %s",
962 >                          client_p->name, comm_errstr(status));
963  
964       /* If a fd goes bad, call dead_link() the socket is no
965        * longer valid for reading or writing.
# Line 1405 | Line 971 | serv_connect_callback(fde_t *fd, int sta
971    /* COMM_OK, so continue the connection procedure */
972    /* Get the C/N lines */
973    conf = find_conf_name(&client_p->localClient->confs,
974 <                        client_p->name, CONF_SERVER);
974 >                        client_p->name, CONF_SERVER);
975    if (conf == NULL)
976    {
977      sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
978 <                         "Lost connect{} block for %s", get_client_name(client_p, HIDE_IP));
978 >                         "Lost connect{} block for %s", get_client_name(client_p, HIDE_IP));
979      sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
980 <                         "Lost connect{} block for %s", get_client_name(client_p, MASK_IP));
980 >                         "Lost connect{} block for %s", get_client_name(client_p, MASK_IP));
981  
982 <    exit_client(client_p, &me, "Lost connect{} block");
982 >    exit_client(client_p, "Lost connect{} block");
983      return;
984    }
985  
# Line 1428 | Line 994 | serv_connect_callback(fde_t *fd, int sta
994    }
995   #endif
996  
997 <  /* jdc -- Check and send spasswd, not passwd. */
1432 <  if (!EmptyString(conf->spasswd))
1433 <    sendto_one(client_p, "PASS %s TS %d %s",
1434 <               conf->spasswd, TS_CURRENT, me.id);
997 >  sendto_one(client_p, "PASS %s TS %d %s", conf->spasswd, TS_CURRENT, me.id);
998  
999    send_capabilities(client_p, 0);
1000  
1001 <  sendto_one(client_p, "SERVER %s 1 :%s%s",
1002 <             me.name, ConfigServerHide.hidden ? "(H) " : "",
1440 <             me.info);
1001 >  sendto_one(client_p, "SERVER %s 1 :%s%s", me.name,
1002 >             ConfigServerHide.hidden ? "(H) " : "", me.info);
1003  
1004    /* If we've been marked dead because a send failed, just exit
1005     * here now and save everyone the trouble of us ever existing.
1006     */
1007 <  if (IsDead(client_p))
1007 >  if (IsDead(client_p))
1008    {
1009        sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
1010 <                           "%s[%s] went dead during handshake",
1010 >                           "%s[%s] went dead during handshake",
1011                             client_p->name,
1012 <                           client_p->host);
1012 >                           client_p->host);
1013        sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
1014 <                           "%s went dead during handshake", client_p->name);
1014 >                           "%s went dead during handshake", client_p->name);
1015        return;
1016    }
1017  
# Line 1472 | Line 1034 | find_servconn_in_progress(const char *na
1034        if (!match(name, cptr->name))
1035          return cptr;
1036    }
1037 <  
1037 >
1038    return NULL;
1039   }

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