include/hostmask.h

   1 /*
   2  *  Solanum: a slightly advanced 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_ERROR,
  31         HM_HOST,
  32         HM_IPV4,
  33         HM_IPV6,
  34 };
  35
  36 enum aconf_category
  37 {
  38         AC_CONFIG,
  39         AC_BANDB,
  40 };
  41
  42 int parse_netmask(const char *, struct rb_sockaddr_storage *, int *);
  43 int parse_netmask_strict(const char *, struct rb_sockaddr_storage *, int *);
  44 struct ConfItem *find_conf_by_address(const char *host, const char *sockhost,
  45                                       const char *orighost, struct sockaddr *,
  46                                       int, int, const char *, const char *);
  47 struct ConfItem *find_exact_conf_by_address(const char *address, int type,
  48                                             const char *username);
  49 struct ConfItem *find_exact_conf_by_address_filtered(const char *address, int type,
  50                 const char *username, bool (*filter)(struct ConfItem *));
  51 void add_conf_by_address(const char *, int, const char *, const char *, struct ConfItem *);
  52 void delete_one_address_conf(const char *, struct ConfItem *);
  53 void clear_out_address_conf(enum aconf_category);
  54 void init_host_hash(void);
  55 struct ConfItem *find_address_conf(const char *host, const char *sockhost,
  56                                 const char *, const char *, struct sockaddr *,
  57                                 int, char *);
  58
  59 struct ConfItem *find_dline(struct sockaddr *, int);
  60
  61 #define find_kline(x)   ((IsConfDoSpoofIp((x)->localClient->att_conf) && IsConfKlineSpoof((x)->localClient->att_conf)) ? \
  62                 find_conf_by_address((x)->orighost, NULL, NULL, NULL, CONF_KILL, AF_INET, (x)->username, NULL) : \
  63                 find_conf_by_address((x)->host, (x)->sockhost, (x)->orighost, \
  64                          (struct sockaddr *)&(x)->localClient->ip, CONF_KILL,\
  65                          GET_SS_FAMILY(&(x)->localClient->ip), (x)->username, NULL))
  66
  67 void report_auth(struct Client *);
  68 int match_ipv6(struct sockaddr *, struct sockaddr *, int);
  69 int match_ipv4(struct sockaddr *, struct sockaddr *, int);
  70
  71 /* Hashtable stuff... */
  72 #define ATABLE_SIZE 0x1000 /* 2^12 */
  73 #define ATABLE_BITS (32-12)
  74
  75 extern struct AddressRec *atable[ATABLE_SIZE];
  76
  77 struct AddressRec
  78 {
  79         /* masktype: HM_HOST, HM_IPV4, HM_IPV6 -A1kmm */
  80         int masktype;
  81
  82         union
  83         {
  84                 struct
  85                 {
  86                         /* Pointer into ConfItem... -A1kmm */
  87                         struct rb_sockaddr_storage addr;
  88                         int bits;
  89                 }
  90                 ipa;
  91
  92                 /* Pointer into ConfItem... -A1kmm */
  93                 const char *hostname;
  94         }
  95         Mask;
  96
  97         /* type: CONF_CLIENT, CONF_DLINE, CONF_KILL etc... -A1kmm */
  98         int type;
  99
 100         /* Higher precedences overrule lower ones... */
 101         unsigned long precedence;
 102
 103         /* Only checked if !(type & 1)... */
 104         const char *username;
 105         /* Only checked if type == CONF_CLIENT */
 106         const char *auth_user;
 107         struct ConfItem *aconf;
 108
 109         /* The next record in this hash bucket. */
 110         struct AddressRec *next;
 111 };
 112
 113
 114 #endif /* INCLUDE_hostmask_h */