modules/sno_routing.c

   1 /*
   2  *  Solanum: a slightly advanced 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 #include "stdinc.h"
  33 #include "modules.h"
  34 #include "client.h"
  35 #include "hook.h"
  36 #include "ircd.h"
  37 #include "send.h"
  38
  39 static void h_nn_server_eob(void *);
  40 static void h_nn_client_exit(void *);
  41
  42 mapi_hfn_list_av1 nn_hfnlist[] = {
  43         { "server_eob", h_nn_server_eob },
  44         { "client_exit", h_nn_client_exit },
  45         { NULL, NULL }
  46 };
  47
  48 static const char sno_desc[] = "Show notices about netjoins and netsplits";
  49
  50 DECLARE_MODULE_AV2(networknotice, NULL, NULL, NULL, NULL, nn_hfnlist, NULL, NULL, sno_desc);
  51
  52 /*
  53  * count_mark_downlinks
  54  *
  55  * inputs       - pointer to server to count
  56  *              - pointers to server and user count
  57  * output       - NONE
  58  * side effects - servers are marked
  59  *              - server and user counts are added to given values
  60  */
  61 static void
  62 count_mark_downlinks(struct Client *server_p, int *pservcount, int *pusercount)
  63 {
  64         rb_dlink_node *ptr;
  65
  66         SetFloodDone(server_p);
  67         (*pservcount)++;
  68         *pusercount += rb_dlink_list_length(&server_p->serv->users);
  69         RB_DLINK_FOREACH(ptr, server_p->serv->servers.head)
  70         {
  71                 count_mark_downlinks(ptr->data, pservcount, pusercount);
  72         }
  73 }
  74
  75 static void
  76 h_nn_server_eob(void *data)
  77 {
  78         struct Client *source_p = data;
  79         int s = 0, u = 0;
  80
  81         if (IsFloodDone(source_p))
  82                 return;
  83         count_mark_downlinks(source_p, &s, &u);
  84         sendto_realops_snomask(SNO_GENERAL, L_ALL, "Netjoin %s <-> %s (%dS %dC)",
  85                         source_p->servptr ? source_p->servptr->name : "?",
  86                         source_p->name, s, u);
  87 }
  88
  89 static void
  90 h_nn_client_exit(void *data)
  91 {
  92         hook_data_client_exit *hdata = data;
  93         struct Client *source_p;
  94         int s = 0, u = 0;
  95         char *fromnick;
  96
  97         source_p = hdata->target;
  98         fromnick = IsClient(hdata->from) ? hdata->from->name : NULL;
  99
 100         if (!IsServer(source_p))
 101                 return;
 102         if (HasSentEob(source_p))
 103         {
 104                 count_mark_downlinks(source_p, &s, &u);
 105                 sendto_realops_snomask(SNO_GENERAL, L_ALL, "Netsplit %s <-> %s (%dS %dC) (%s%s%s%s)",
 106                                 source_p->servptr ? source_p->servptr->name : "?",
 107                                 source_p->name, s, u,
 108                                 fromnick ? "by " : "",
 109                                 fromnick ? fromnick : "",
 110                                 fromnick ? ": " : "",
 111                                 hdata->comment);
 112         }
 113         else
 114                 sendto_realops_snomask(SNO_GENERAL, L_ALL, "Netsplit %s <-> %s (during burst) (%s%s%s%s)",
 115                                 source_p->servptr ? source_p->servptr->name : "?",
 116                                 source_p->name,
 117                                 fromnick ? "by " : "",
 118                                 fromnick ? fromnick : "",
 119                                 fromnick ? ": " : "",
 120                                 hdata->comment);
 121 }