ipf/netinet/ip_htable.h

	ip_htable.h revision ab25eeb551a4be927a4b6ae2cf8aff7ed17decb4
/*
 * Copyright (C) 2003 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#ifndef __IP_HTABLE_H__
#define __IP_HTABLE_H__

#include "netinet/ip_lookup.h"

typedef struct  iphtent_s   {
    struct  iphtent_s   *ipe_next, **ipe_pnext;
    void        *ipe_ptr;
    sa_family_t ipe_family;
    i6addr_t    ipe_addr;
    i6addr_t    ipe_mask;
    int     ipe_ref;
    union   {
        char    ipeu_char[16];
        u_long  ipeu_long;
        u_int   ipeu_int;
    }ipe_un;
} iphtent_t;

#define ipe_value   ipe_un.ipeu_int
#define ipe_group   ipe_un.ipeu_char

#define IPE_HASH_FN(a, m, s)    (((a) * (m)) % (s))


typedef struct  iphtable_s  {
    ipfrwlock_t iph_rwlock;
    struct  iphtable_s  *iph_next, **iph_pnext;
    struct  iphtent_s   **iph_table;
    size_t  iph_size;       /* size of hash table */
    u_long  iph_seed;       /* hashing seed */
    u_32_t  iph_flags;
    u_int   iph_unit;       /* IPL_LOG* */
    u_int   iph_ref;
    u_int   iph_type;       /* lookup or group map  - IPHASH_* */
    u_int   iph_masks[4];       /* IPv4 or IPv6 netmasks in use */
    char    iph_name[FR_GROUPLEN];  /* hash table number */
} iphtable_t;


/* iph_type */
#define IPHASH_LOOKUP   0
#define IPHASH_GROUPMAP 1
#define IPHASH_ANON 0x80000000


typedef struct  iphtstat_s  {
    iphtable_t  *iphs_tables;
    u_long      iphs_numtables;
    u_long      iphs_numnodes;
    u_long      iphs_nomem;
    u_long      iphs_pad[16];
} iphtstat_t;


extern iphtable_t *ipf_htables[IPL_LOGSIZE];

extern void fr_htable_unload __P((void));
extern int fr_newhtable __P((iplookupop_t *));
extern iphtable_t *fr_findhtable __P((int, char *));
extern int fr_removehtable __P((iplookupop_t *));
extern size_t fr_flushhtable __P((iplookupflush_t *));
extern int fr_addhtent __P((iphtable_t *, iphtent_t *));
extern int fr_delhtent __P((iphtable_t *, iphtent_t *));
extern void fr_derefhtable __P((iphtable_t *));
extern void fr_delhtable __P((iphtable_t *));
extern void *fr_iphmfindgroup __P((void *, int, void *));
extern int fr_iphmfindip __P((void *, int, void *));
extern int fr_gethtablestat __P((iplookupop_t *));

#endif /* __IP_HTABLE_H__ */