X-Git-Url: http://git.pk910.de/?p=ircu2.10.12-pk.git;a=blobdiff_plain;f=ircd%2Fs_serv.c;fp=ircd%2Fs_serv.c;h=abcf6aa55b66825e333e7f8c26fa9c7368d1807f;hp=0000000000000000000000000000000000000000;hb=0400a5a6479398d82526785c18c0df8bc8b92dce;hpb=d17e10da972ce5776c60b4c317267c6abe0e1ead

diff --git a/ircd/s_serv.c b/ircd/s_serv.c
new file mode 100644
index 0000000..abcf6aa
--- /dev/null
+++ b/ircd/s_serv.c
@@ -0,0 +1,268 @@
+/*
+ * IRC - Internet Relay Chat, ircd/s_serv.c (formerly ircd/s_msg.c)
+ * Copyright (C) 1990 Jarkko Oikarinen and
+ *                    University of Oulu, Computing Center
+ *
+ * See file AUTHORS in IRC package for additional names of
+ * the programmers.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 1, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/** @file
+ * @brief Miscellaneous server support functions.
+ * @version $Id$
+ */
+#include "config.h"
+
+#include "s_serv.h"
+#include "IPcheck.h"
+#include "channel.h"
+#include "client.h"
+#include "gline.h"
+#include "hash.h"
+#include "ircd.h"
+#include "ircd_alloc.h"
+#include "ircd_log.h"
+#include "ircd_reply.h"
+#include "ircd_string.h"
+#include "ircd_snprintf.h"
+#include "ircd_crypt.h"
+#include "jupe.h"
+#include "list.h"
+#include "match.h"
+#include "msg.h"
+#include "msgq.h"
+#include "numeric.h"
+#include "numnicks.h"
+#include "parse.h"
+#include "querycmds.h"
+#include "s_bsd.h"
+#include "s_conf.h"
+#include "s_debug.h"
+#include "s_misc.h"
+#include "s_user.h"
+#include "send.h"
+#include "struct.h"
+#include "sys.h"
+#include "userload.h"
+
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+#include <stdlib.h>
+#include <string.h>
+
+/** Maximum connection count since last restart. */
+unsigned int max_connection_count = 0;
+/** Maximum (local) client count since last restart. */
+unsigned int max_client_count = 0;
+
+/** Squit a new (pre-burst) server.
+ * @param cptr Local client that tried to introduce the server.
+ * @param sptr Server to disconnect.
+ * @param host Name of server being disconnected.
+ * @param timestamp Link time of server being disconnected.
+ * @param pattern Format string for squit message.
+ * @return CPTR_KILLED if cptr == sptr, else 0.
+ */
+int exit_new_server(struct Client *cptr, struct Client *sptr, const char *host,
+                    time_t timestamp, const char *pattern, ...)
+{
+  struct VarData vd;
+  int retval = 0;
+
+  vd.vd_format = pattern;
+  va_start(vd.vd_args, pattern);
+
+  if (!IsServer(sptr))
+    retval = vexit_client_msg(cptr, cptr, &me, pattern, vd.vd_args);
+  else
+    sendcmdto_one(&me, CMD_SQUIT, cptr, "%s %Tu :%v", host, timestamp, &vd);
+
+  va_end(vd.vd_args);
+
+  return retval;
+}
+
+/** Indicate whether \a a is between \a b and #me (that is, \a b would
+ * be killed if \a a squits).
+ * @param a A server that may be between us and \a b.
+ * @param b A client that may be on the far side of \a a.
+ * @return Non-zero if \a a is between \a b and #me.
+ */
+int a_kills_b_too(struct Client *a, struct Client *b)
+{
+  for (; b != a && b != &me; b = cli_serv(b)->up);
+  return (a == b ? 1 : 0);
+}
+
+/** Handle a connection that has sent a valid PASS and SERVER.
+ * @param cptr New peer server.
+ * @param aconf Connect block for \a cptr.
+ * @return Zero.
+ */
+int server_estab(struct Client *cptr, struct ConfItem *aconf)
+{
+  struct Client* acptr = 0;
+  const char*    inpath;
+  int            i;
+
+  assert(0 != cptr);
+  assert(0 != cli_local(cptr));
+
+  inpath = cli_name(cptr);
+
+  if (IsUnknown(cptr)) {
+    if (aconf->passwd[0])
+      sendrawto_one(cptr, MSG_PASS " :%s", aconf->passwd);
+    /*
+     *  Pass my info to the new server
+     */
+    sendrawto_one(cptr, MSG_SERVER " %s 1 %Tu %Tu J%s %s%s +%s6 :%s",
+		  cli_name(&me), cli_serv(&me)->timestamp,
+		  cli_serv(cptr)->timestamp, MAJOR_PROTOCOL, NumServCap(&me),
+		  feature_bool(FEAT_HUB) ? "h" : "",
+		  *(cli_info(&me)) ? cli_info(&me) : "IRCers United");
+  }
+
+  det_confs_butmask(cptr, CONF_SERVER | CONF_UWORLD);
+
+  if (!IsHandshake(cptr))
+    hAddClient(cptr);
+  SetServer(cptr);
+  cli_handler(cptr) = SERVER_HANDLER;
+  Count_unknownbecomesserver(UserStats);
+  SetBurst(cptr);
+
+/*    nextping = CurrentTime; */
+
+  /*
+   * NOTE: check for acptr->user == cptr->serv->user is necessary to insure
+   * that we got the same one... bleah
+   */
+  if (cli_serv(cptr)->user && *(cli_serv(cptr))->by &&
+      (acptr = findNUser(cli_serv(cptr)->by))) {
+    if (cli_user(acptr) == cli_serv(cptr)->user) {
+      sendcmdto_one(&me, CMD_NOTICE, acptr, "%C :Link with %s established.",
+                    acptr, inpath);
+    }
+    else {
+      /*
+       * if not the same client, set by to empty string
+       */
+      acptr = 0;
+      *(cli_serv(cptr))->by = '\0';
+    }
+  }
+
+  sendto_opmask_butone(acptr, SNO_OLDSNO, "Link with %s established.", inpath);
+  cli_serv(cptr)->up = &me;
+  cli_serv(cptr)->updown = add_dlink(&(cli_serv(&me))->down, cptr);
+  sendto_opmask_butone(0, SNO_NETWORK, "Net junction: %s %s", cli_name(&me),
+                       cli_name(cptr));
+  SetJunction(cptr);
+  /*
+   * Old sendto_serv_but_one() call removed because we now
+   * need to send different names to different servers
+   * (domain name matching) Send new server to other servers.
+   */
+  for (i = 0; i <= HighestFd; i++)
+  {
+    if (!(acptr = LocalClientArray[i]) || !IsServer(acptr) ||
+        acptr == cptr || IsMe(acptr))
+      continue;
+    if (!match(cli_name(&me), cli_name(cptr)))
+      continue;
+    sendcmdto_one(&me, CMD_SERVER, acptr,
+		  "%s 2 0 %Tu J%02u %s%s +%s%s%s :%s", cli_name(cptr),
+		  cli_serv(cptr)->timestamp, Protocol(cptr), NumServCap(cptr),
+		  IsHub(cptr) ? "h" : "", IsService(cptr) ? "s" : "",
+		  IsIPv6(cptr) ? "6" : "", cli_info(cptr));
+  }
+
+  /* Send these as early as possible so that glined users/juped servers can
+   * be removed from the network while the remote server is still chewing
+   * our burst.
+   */
+  gline_burst(cptr);
+  jupe_burst(cptr);
+
+  /*
+   * Pass on my client information to the new server
+   *
+   * First, pass only servers (idea is that if the link gets
+   * canceled because the server was already there,
+   * there are no NICK's to be canceled...). Of course,
+   * if cancellation occurs, all this info is sent anyway,
+   * and I guess the link dies when a read is attempted...? --msa
+   *
+   * Note: Link cancellation to occur at this point means
+   * that at least two servers from my fragment are building
+   * up connection this other fragment at the same time, it's
+   * a race condition, not the normal way of operation...
+   */
+
+  for (acptr = &me; acptr; acptr = cli_prev(acptr)) {
+    /* acptr->from == acptr for acptr == cptr */
+    if (cli_from(acptr) == cptr)
+      continue;
+    if (IsServer(acptr)) {
+      const char* protocol_str;
+
+      if (Protocol(acptr) > 9)
+        protocol_str = IsBurst(acptr) ? "J" : "P";
+      else
+        protocol_str = IsBurst(acptr) ? "J0" : "P0";
+
+      if (0 == match(cli_name(&me), cli_name(acptr)))
+        continue;
+      sendcmdto_one(cli_serv(acptr)->up, CMD_SERVER, cptr,
+		    "%s %d 0 %Tu %s%u %s%s +%s%s%s :%s", cli_name(acptr),
+		    cli_hopcount(acptr) + 1, cli_serv(acptr)->timestamp,
+		    protocol_str, Protocol(acptr), NumServCap(acptr),
+		    IsHub(acptr) ? "h" : "", IsService(acptr) ? "s" : "",
+		    IsIPv6(acptr) ? "6" : "", cli_info(acptr));
+    }
+  }
+
+  for (acptr = &me; acptr; acptr = cli_prev(acptr))
+  {
+    /* acptr->from == acptr for acptr == cptr */
+    if (cli_from(acptr) == cptr)
+      continue;
+    if (IsUser(acptr))
+    {
+      char xxx_buf[25];
+      char *s = umode_str(acptr);
+      sendcmdto_one(cli_user(acptr)->server, CMD_NICK, cptr,
+		    "%s %d %Tu %s %s %s%s%s%s %s%s :%s",
+		    cli_name(acptr), cli_hopcount(acptr) + 1, cli_lastnick(acptr),
+		    cli_user(acptr)->username, cli_user(acptr)->realhost,
+		    *s ? "+" : "", s, *s ? " " : "",
+		    iptobase64(xxx_buf, &cli_ip(acptr), sizeof(xxx_buf), IsIPv6(cptr)),
+		    NumNick(acptr), cli_info(acptr));
+    }
+  }
+  /*
+   * Last, send the BURST.
+   * (Or for 2.9 servers: pass all channels plus statuses)
+   */
+  {
+    struct Channel *chptr;
+    for (chptr = GlobalChannelList; chptr; chptr = chptr->next)
+      send_channel_modes(cptr, chptr);
+  }
+  sendcmdto_one(&me, CMD_END_OF_BURST, cptr, "");
+  return 0;
+}
+