include/hostmask.h

   1 /*
   2  *  charybdis: an advanced Internet Relay Chat Daemon(ircd).
   3  *  hostmask.h: A header for the hostmask code.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2004 ircd-ratbox development team
   8  *  Copyright (C) 2005-2006 charybdis development team
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, write to the Free Software
  22  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  23  *  USA
  24  *
  25  *  $Id: hostmask.h 2757 2006-11-10 22:58:15Z jilles $
  26  */
  27
  28 #ifndef INCLUDE_hostmask_h
  29 #define INCLUDE_hostmask_h 1
  30 enum
  31 {
  32         HM_HOST,
  33         HM_IPV4
  34 #ifdef RB_IPV6
  35                 , HM_IPV6
  36 #endif
  37 };
  38
  39 int parse_netmask(const char *, struct sockaddr *, int *);
  40 struct ConfItem *find_conf_by_address(const char *host, const char *sockhost,
  41                                       const char *orighost, struct sockaddr *,
  42                                       int, int, const char *, const char *);
  43 struct ConfItem *find_exact_conf_by_address(const char *address, int type,
  44                                             const char *username);
  45 void add_conf_by_address(const char *, int, const char *, const char *, struct ConfItem *);
  46 void delete_one_address_conf(const char *, struct ConfItem *);
  47 void clear_out_address_conf(void);
  48 void clear_out_address_conf_bans(void);
  49 void init_host_hash(void);
  50 struct ConfItem *find_address_conf(const char *host, const char *sockhost,
  51                                 const char *, const char *, struct sockaddr *,
  52                                 int, char *);
  53
  54 struct ConfItem *find_dline(struct sockaddr *, int);
  55
  56 #define find_kline(x)   (find_conf_by_address((x)->host, (x)->sockhost, \
  57                          (x)->orighost, \
  58                          (struct sockaddr *)&(x)->localClient->ip, CONF_KILL,\
  59                          (x)->localClient->ip.ss_family, (x)->username, NULL))
  60
  61 void report_Klines(struct Client *);
  62 void report_auth(struct Client *);
  63 #ifdef RB_IPV6
  64 int match_ipv6(struct sockaddr *, struct sockaddr *, int);
  65 #endif
  66 int match_ipv4(struct sockaddr *, struct sockaddr *, int);
  67
  68 /* Hashtable stuff... */
  69 #define ATABLE_SIZE 0x1000 /* 2^12 */
  70 #define ATABLE_BITS (32-12)
  71
  72 extern struct AddressRec *atable[ATABLE_SIZE];
  73
  74 struct AddressRec
  75 {
  76         /* masktype: HM_HOST, HM_IPV4, HM_IPV6 -A1kmm */
  77         int masktype;
  78
  79         union
  80         {
  81                 struct
  82                 {
  83                         /* Pointer into ConfItem... -A1kmm */
  84                         struct rb_sockaddr_storage addr;
  85                         int bits;
  86                 }
  87                 ipa;
  88
  89                 /* Pointer into ConfItem... -A1kmm */
  90                 const char *hostname;
  91         }
  92         Mask;
  93
  94         /* type: CONF_CLIENT, CONF_DLINE, CONF_KILL etc... -A1kmm */
  95         int type;
  96
  97         /* Higher precedences overrule lower ones... */
  98         unsigned long precedence;
  99
 100         /* Only checked if !(type & 1)... */
 101         const char *username;
 102         /* Only checked if type == CONF_CLIENT */
 103         const char *auth_user;
 104         struct ConfItem *aconf;
 105
 106         /* The next record in this hash bucket. */
 107         struct AddressRec *next;
 108 };
 109
 110
 111 #endif /* INCLUDE_hostmask_h */