src/s_gline.c

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  s_gline.c: GLine global ban functions.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2005 ircd-ratbox development team
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  22  *  USA
  23  *
  24  *  $Id: s_gline.c 254 2005-09-21 23:35:12Z nenolod $
  25  */
  26
  27 #include "stdinc.h"
  28 #include "tools.h"
  29 #include "channel.h"
  30 #include "client.h"
  31 #include "common.h"
  32 #include "config.h"
  33 #include "irc_string.h"
  34 #include "ircd.h"
  35 #include "hostmask.h"
  36 #include "numeric.h"
  37 #include "commio.h"
  38 #include "s_conf.h"
  39 #include "scache.h"
  40 #include "send.h"
  41 #include "msg.h"
  42 #include "s_serv.h"
  43 #include "s_gline.h"
  44 #include "hash.h"
  45 #include "event.h"
  46 #include "memory.h"
  47
  48 dlink_list glines;
  49
  50 static void expire_glines(void);
  51 static void expire_pending_glines(void);
  52
  53 /* add_gline
  54  *
  55  * inputs       - pointer to struct ConfItem
  56  * output       - none
  57  * Side effects - links in given struct ConfItem into gline link list
  58  */
  59 void
  60 add_gline(struct ConfItem *aconf)
  61 {
  62         dlinkAddTailAlloc(aconf, &glines);
  63         add_conf_by_address(aconf->host, CONF_GLINE, aconf->user, aconf);
  64 }
  65
  66 /*
  67  * find_is_glined
  68  * inputs       - hostname
  69  *              - username
  70  * output       - pointer to struct ConfItem if user@host glined
  71  * side effects -
  72  */
  73 struct ConfItem *
  74 find_is_glined(const char *host, const char *user)
  75 {
  76         dlink_node *gline_node;
  77         struct ConfItem *kill_ptr;
  78
  79         DLINK_FOREACH(gline_node, glines.head)
  80         {
  81                 kill_ptr = gline_node->data;
  82                 if((kill_ptr->user && (!user || match(kill_ptr->user, user)))
  83                    && (kill_ptr->host && (!host || match(kill_ptr->host, host))))
  84                 {
  85                         return (kill_ptr);
  86                 }
  87         }
  88
  89         return (NULL);
  90 }
  91
  92 /*
  93  * cleanup_glines
  94  *
  95  * inputs       - NONE
  96  * output       - NONE
  97  * side effects - expire gline lists
  98  *                This is an event started off in ircd.c
  99  */
 100 void
 101 cleanup_glines(void *unused)
 102 {
 103         expire_glines();
 104         expire_pending_glines();
 105 }
 106
 107 /*
 108  * expire_glines
 109  *
 110  * inputs       - NONE
 111  * output       - NONE
 112  * side effects -
 113  *
 114  * Go through the gline list, expire any needed.
 115  */
 116 static void
 117 expire_glines()
 118 {
 119         dlink_node *gline_node;
 120         dlink_node *next_node;
 121         struct ConfItem *kill_ptr;
 122
 123         DLINK_FOREACH_SAFE(gline_node, next_node, glines.head)
 124         {
 125                 kill_ptr = gline_node->data;
 126
 127                 /* these are in chronological order */
 128                 if(kill_ptr->hold > CurrentTime)
 129                         break;
 130
 131                 dlinkDestroy(gline_node, &glines);
 132                 delete_one_address_conf(kill_ptr->host, kill_ptr);
 133         }
 134 }
 135
 136 /*
 137  * expire_pending_glines
 138  *
 139  * inputs       - NONE
 140  * output       - NONE
 141  * side effects -
 142  *
 143  * Go through the pending gline list, expire any that haven't had
 144  * enough "votes" in the time period allowed
 145  */
 146 static void
 147 expire_pending_glines()
 148 {
 149         dlink_node *pending_node;
 150         dlink_node *next_node;
 151         struct gline_pending *glp_ptr;
 152
 153         DLINK_FOREACH_SAFE(pending_node, next_node, pending_glines.head)
 154         {
 155                 glp_ptr = pending_node->data;
 156
 157                 if(((glp_ptr->last_gline_time + GLINE_PENDING_EXPIRE) <=
 158                     CurrentTime) || find_is_glined(glp_ptr->host, glp_ptr->user))
 159
 160                 {
 161                         MyFree(glp_ptr->reason1);
 162                         MyFree(glp_ptr->reason2);
 163                         MyFree(glp_ptr);
 164                         dlinkDestroy(pending_node, &pending_glines);
 165                 }
 166         }
 167 }