include/blacklist.h

   1 /*
   2  *  charybdis: A slightly useful ircd.
   3  *  blacklist.h: Manages DNS blacklist entries and lookups
   4  *
   5  *  Copyright (C) 2006 charybdis development team
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  20  *  USA
  21  *
  22  */
  23
  24 #ifndef _BLACKLIST_H_
  25 #define _BLACKLIST_H_
  26
  27 #include "stdinc.h"
  28
  29 #define BLACKLIST_FILTER_ALL 1
  30 #define BLACKLIST_FILTER_LAST 2
  31
  32 /* A configured DNSBL */
  33 struct Blacklist {
  34         unsigned int status;    /* If CONF_ILLEGAL, delete when no clients */
  35         int refcount;
  36         int ipv4;       /* Does this blacklist support IPv4 lookups? */
  37         int ipv6;       /* Does this blacklist support IPv6 lookups? */
  38         char host[IRCD_RES_HOSTLEN + 1];
  39         rb_dlink_list filters;  /* Filters for queries */
  40         char reject_reason[IRCD_BUFSIZE];
  41         unsigned int hits;
  42         time_t lastwarning;
  43 };
  44
  45 /* A lookup in progress for a particular DNSBL for a particular client */
  46 struct BlacklistClient {
  47         struct Blacklist *blacklist;
  48         struct Client *client_p;
  49         uint16_t dns_id;
  50         rb_dlink_node node;
  51 };
  52
  53 /* A blacklist filter */
  54 struct BlacklistFilter {
  55         int type;               /* Type of filter */
  56         char filterstr[HOSTIPLEN]; /* The filter itself */
  57         rb_dlink_node node;
  58 };
  59
  60 /* public interfaces */
  61 struct Blacklist *new_blacklist(char *host, char *reject_reason, int ipv4, int ipv6, rb_dlink_list *filters);
  62 void lookup_blacklists(struct Client *client_p);
  63 void abort_blacklist_queries(struct Client *client_p);
  64 void unref_blacklist(struct Blacklist *blptr);
  65 void destroy_blacklists(void);
  66
  67 extern rb_dlink_list blacklist_list;
  68
  69 #endif