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
  27 #ifndef INCLUDE_hostmask_h
  28 #define INCLUDE_hostmask_h 1
  29 enum
  30 {
  31         HM_HOST,
  32         HM_IPV4
  33 #ifdef RB_IPV6
  34                 , HM_IPV6
  35 #endif
  36 };
  37
  38 int parse_netmask(const char *, struct sockaddr *, int *);
  39 struct ConfItem *find_conf_by_address(const char *host, const char *sockhost,
  40                                       const char *orighost, struct sockaddr *,
  41                                       int, int, const char *, const char *);
  42 struct ConfItem *find_exact_conf_by_address(const char *address, int type,
  43                                             const char *username);
  44 void add_conf_by_address(const char *, int, const char *, const char *, struct ConfItem *);
  45 void delete_one_address_conf(const char *, struct ConfItem *);
  46 void clear_out_address_conf(void);
  47 void clear_out_address_conf_bans(void);
  48 void init_host_hash(void);
  49 struct ConfItem *find_address_conf(const char *host, const char *sockhost,
  50                                 const char *, const char *, struct sockaddr *,
  51                                 int, char *);
  52
  53 struct ConfItem *find_dline(struct sockaddr *, int);
  54
  55 #define find_kline(x)   (find_conf_by_address((x)->host, (x)->sockhost, \
  56                          (x)->orighost, \
  57                          (struct sockaddr *)&(x)->localClient->ip, CONF_KILL,\
  58                          (x)->localClient->ip.ss_family, (x)->username, NULL))
  59
  60 void report_Klines(struct Client *);
  61 void report_auth(struct Client *);
  62 #ifdef RB_IPV6
  63 int match_ipv6(struct sockaddr *, struct sockaddr *, int);
  64 #endif
  65 int match_ipv4(struct sockaddr *, struct sockaddr *, int);
  66
  67 /* Hashtable stuff... */
  68 #define ATABLE_SIZE 0x1000 /* 2^12 */
  69 #define ATABLE_BITS (32-12)
  70
  71 extern struct AddressRec *atable[ATABLE_SIZE];
  72
  73 struct AddressRec
  74 {
  75         /* masktype: HM_HOST, HM_IPV4, HM_IPV6 -A1kmm */
  76         int masktype;
  77
  78         union
  79         {
  80                 struct
  81                 {
  82                         /* Pointer into ConfItem... -A1kmm */
  83                         struct rb_sockaddr_storage addr;
  84                         int bits;
  85                 }
  86                 ipa;
  87
  88                 /* Pointer into ConfItem... -A1kmm */
  89                 const char *hostname;
  90         }
  91         Mask;
  92
  93         /* type: CONF_CLIENT, CONF_DLINE, CONF_KILL etc... -A1kmm */
  94         int type;
  95
  96         /* Higher precedences overrule lower ones... */
  97         unsigned long precedence;
  98
  99         /* Only checked if !(type & 1)... */
 100         const char *username;
 101         /* Only checked if type == CONF_CLIENT */
 102         const char *auth_user;
 103         struct ConfItem *aconf;
 104
 105         /* The next record in this hash bucket. */
 106         struct AddressRec *next;
 107 };
 108
 109
 110 #endif /* INCLUDE_hostmask_h */