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
  26 #ifndef INCLUDE_hostmask_h
  27 #define INCLUDE_hostmask_h 1
  28 enum
  29 {
  30         HM_HOST,
  31         HM_IPV4
  32 #ifdef RB_IPV6
  33                 , HM_IPV6
  34 #endif
  35 };
  36
  37 int parse_netmask(const char *, struct rb_sockaddr_storage *, int *);
  38 struct ConfItem *find_conf_by_address(const char *host, const char *sockhost,
  39                                       const char *orighost, struct sockaddr *,
  40                                       int, int, const char *, const char *);
  41 struct ConfItem *find_exact_conf_by_address(const char *address, int type,
  42                                             const char *username);
  43 void add_conf_by_address(const char *, int, const char *, const char *, struct ConfItem *);
  44 void delete_one_address_conf(const char *, struct ConfItem *);
  45 void clear_out_address_conf(void);
  46 void clear_out_address_conf_bans(void);
  47 void init_host_hash(void);
  48 struct ConfItem *find_address_conf(const char *host, const char *sockhost,
  49                                 const char *, const char *, struct sockaddr *,
  50                                 int, char *);
  51
  52 struct ConfItem *find_dline(struct sockaddr *, int);
  53
  54 #define find_kline(x)   (find_conf_by_address((x)->host, (x)->sockhost, \
  55                          (x)->orighost, \
  56                          (struct sockaddr *)&(x)->localClient->ip, CONF_KILL,\
  57                          GET_SS_FAMILY(&(x)->localClient->ip), (x)->username, NULL))
  58
  59 void report_auth(struct Client *);
  60 #ifdef RB_IPV6
  61 int match_ipv6(struct sockaddr *, struct sockaddr *, int);
  62 #endif
  63 int match_ipv4(struct sockaddr *, struct sockaddr *, int);
  64
  65 /* Hashtable stuff... */
  66 #define ATABLE_SIZE 0x1000 /* 2^12 */
  67 #define ATABLE_BITS (32-12)
  68
  69 extern struct AddressRec *atable[ATABLE_SIZE];
  70
  71 struct AddressRec
  72 {
  73         /* masktype: HM_HOST, HM_IPV4, HM_IPV6 -A1kmm */
  74         int masktype;
  75
  76         union
  77         {
  78                 struct
  79                 {
  80                         /* Pointer into ConfItem... -A1kmm */
  81                         struct rb_sockaddr_storage addr;
  82                         int bits;
  83                 }
  84                 ipa;
  85
  86                 /* Pointer into ConfItem... -A1kmm */
  87                 const char *hostname;
  88         }
  89         Mask;
  90
  91         /* type: CONF_CLIENT, CONF_DLINE, CONF_KILL etc... -A1kmm */
  92         int type;
  93
  94         /* Higher precedences overrule lower ones... */
  95         unsigned long precedence;
  96
  97         /* Only checked if !(type & 1)... */
  98         const char *username;
  99         /* Only checked if type == CONF_CLIENT */
 100         const char *auth_user;
 101         struct ConfItem *aconf;
 102
 103         /* The next record in this hash bucket. */
 104         struct AddressRec *next;
 105 };
 106
 107
 108 #endif /* INCLUDE_hostmask_h */