modules/sno_routing.c

   1 /*
   2  *  charybdis: an advanced Internet Relay Chat Daemon(ircd).
   3  *  sno_routing.c: Shows notices about netjoins and netsplits
   4  *
   5  *  Copyright (c) 2005-2006 Jilles Tjoelker <jilles-at-stack.nl>
   6  *
   7  *  Redistribution and use in source and binary forms, with or without
   8  *  modification, are permitted provided that the following conditions are
   9  *  met:
  10  *
  11  *  1.Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  *  2.Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *  3.The name of the author may not be used to endorse or promote products
  17  *    derived from this software without specific prior written permission.
  18  *
  19  *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20  *  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  21  *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  22  *  DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  23  *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  25  *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  27  *  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  28  *  IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  *  POSSIBILITY OF SUCH DAMAGE.
  30  *
  31  */
  32
  33 #include "stdinc.h"
  34 #include "modules.h"
  35 #include "client.h"
  36 #include "hook.h"
  37 #include "ircd.h"
  38 #include "send.h"
  39
  40 static void h_nn_server_eob(struct Client *);
  41 static void h_nn_client_exit(hook_data_client_exit *);
  42
  43 mapi_hfn_list_av1 nn_hfnlist[] = {
  44         { "server_eob", (hookfn) h_nn_server_eob },
  45         { "client_exit", (hookfn) h_nn_client_exit },
  46         { NULL, NULL }
  47 };
  48
  49 DECLARE_MODULE_AV1(networknotice, NULL, NULL, NULL, NULL, nn_hfnlist, "$Revision: 1172 $");
  50
  51 /*
  52  * count_mark_downlinks
  53  *
  54  * inputs       - pointer to server to count
  55  *              - pointers to server and user count
  56  * output       - NONE
  57  * side effects - servers are marked
  58  *              - server and user counts are added to given values
  59  */
  60 static void
  61 count_mark_downlinks(struct Client *server_p, int *pservcount, int *pusercount)
  62 {
  63         rb_dlink_node *ptr;
  64
  65         SetFloodDone(server_p);
  66         (*pservcount)++;
  67         *pusercount += rb_dlink_list_length(&server_p->serv->users);
  68         RB_DLINK_FOREACH(ptr, server_p->serv->servers.head)
  69         {
  70                 count_mark_downlinks(ptr->data, pservcount, pusercount);
  71         }
  72 }
  73
  74 static void
  75 h_nn_server_eob(struct Client *source_p)
  76 {
  77         int s = 0, u = 0;
  78
  79         if (IsFloodDone(source_p))
  80                 return;
  81         count_mark_downlinks(source_p, &s, &u);
  82         sendto_realops_snomask(SNO_GENERAL, L_ALL, "Netjoin %s <-> %s (%dS %dC)",
  83                         source_p->servptr ? source_p->servptr->name : "?",
  84                         source_p->name, s, u);
  85 }
  86
  87 static void
  88 h_nn_client_exit(hook_data_client_exit *hdata)
  89 {
  90         struct Client *source_p;
  91         int s = 0, u = 0;
  92         char *fromnick;
  93
  94         source_p = hdata->target;
  95         fromnick = IsClient(hdata->from) ? hdata->from->name : NULL;
  96
  97         if (!IsServer(source_p))
  98                 return;
  99         if (HasSentEob(source_p))
 100         {
 101                 count_mark_downlinks(source_p, &s, &u);
 102                 sendto_realops_snomask(SNO_GENERAL, L_ALL, "Netsplit %s <-> %s (%dS %dC) (%s%s%s%s)",
 103                                 source_p->servptr ? source_p->servptr->name : "?",
 104                                 source_p->name, s, u,
 105                                 fromnick ? "by " : "",
 106                                 fromnick ? fromnick : "",
 107                                 fromnick ? ": " : "",
 108                                 hdata->comment);
 109         }
 110         else
 111                 sendto_realops_snomask(SNO_GENERAL, L_ALL, "Netsplit %s <-> %s (during burst) (%s%s%s%s)",
 112                                 source_p->servptr ? source_p->servptr->name : "?",
 113                                 source_p->name,
 114                                 fromnick ? "by " : "",
 115                                 fromnick ? fromnick : "",
 116                                 fromnick ? ": " : "",
 117                                 hdata->comment);
 118 }