/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  hostmask.h: A header for the hostmask code.
 *
 *  Copyright (C) 2005 by the past and present ircd coders, and others.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id: hostmask.h 33 2005-10-02 20:50:00Z knight $
 */

#ifndef INCLUDE_hostmask_h
#define INCLUDE_hostmask_h 1

enum
{
  HM_HOST,
  HM_IPV4,
  HM_IPV6
};

struct HostMaskEntry
{
  int type, subtype;
  unsigned long precedence;
  char *hostmask;
  void *data;
  struct HostMaskEntry *next, *nexthash;
};

extern int match_ipv6(struct irc_ssaddr *, struct irc_ssaddr *, int);
extern int match_ipv4(struct irc_ssaddr *, struct irc_ssaddr *, int);
extern void mask_addr(struct irc_ssaddr *, int);
extern int parse_netmask(const char *, struct irc_ssaddr *, int *);

extern void add_conf_by_address(int, struct AccessItem *);
extern void delete_one_address_conf(const char *, struct AccessItem *);
extern void clear_out_address_conf(void);
extern void init_host_hash(void);
extern void report_Klines(struct Client *, int);
extern void report_auth(struct Client *);

extern char *show_iline_prefix(struct Client *, struct AccessItem *, const char *);
extern struct AccessItem *find_address_conf(const char *, const char *,
                                            struct irc_ssaddr *, int, char *);
extern struct AccessItem *find_kline_conf(const char *, const char *,
                                          struct irc_ssaddr *, int);
extern struct AccessItem *find_gline_conf(const char *, const char *,
                                          struct irc_ssaddr *, int);
extern struct AccessItem *find_dline_conf(struct irc_ssaddr *, int);
extern struct AccessItem *find_conf_by_address(const char *, struct irc_ssaddr *,
                                               int, int, const char *, const char *);

/* Hashtable stuff... */
#define ATABLE_SIZE 0x1000

extern struct AddressRec *atable[ATABLE_SIZE];

struct AddressRec
{
  /* masktype: HM_HOST, HM_IPV4, HM_IPV6 -A1kmm */
  int masktype;

  union
  {
    struct
    {
      /* Pointer into AccessItem... -A1kmm */
      struct irc_ssaddr addr;
      int bits;
    } ipa;

    /* Pointer into AccessItem... -A1kmm */
    const char *hostname;
  } Mask;

  /* type: CONF_CLIENT, CONF_DLINE, CONF_KILL etc... -A1kmm */
  int type;

  /* Higher precedences overrule lower ones... */
  unsigned long precedence;

  /* Only checked if !(type & 1)... */
  const char *username;
  struct AccessItem *aconf;

  /* The next record in this hash bucket. */
  struct AddressRec *next;
};
#endif /* INCLUDE_hostmask_h */