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