dist/ipf/ip_htable.h

   1 /*      $NetBSD$        */
   2
   3 #ifndef __IP_HTABLE_H__
   4 #define __IP_HTABLE_H__
   5
   6 #include "netinet/ip_lookup.h"
   7
   8 typedef struct  iphtent_s       {
   9         struct  iphtent_s       *ipe_next, **ipe_pnext;
  10         struct  iphtent_s       *ipe_hnext, **ipe_phnext;
  11         void            *ipe_ptr;
  12         i6addr_t        ipe_addr;
  13         i6addr_t        ipe_mask;
  14         int             ipe_ref;
  15         int             ipe_unit;
  16         union   {
  17                 char    ipeu_char[16];
  18                 u_long  ipeu_long;
  19                 u_int   ipeu_int;
  20         }ipe_un;
  21 } iphtent_t;
  22
  23 #define ipe_value       ipe_un.ipeu_int
  24 #define ipe_group       ipe_un.ipeu_char
  25
  26 #define IPE_HASH_FN(a, m, s)    (((a) * (m)) % (s))
  27
  28
  29 typedef struct  iphtable_s      {
  30         ipfrwlock_t     iph_rwlock;
  31         struct  iphtable_s      *iph_next, **iph_pnext;
  32         struct  iphtent_s       **iph_table;
  33         struct  iphtent_s       *iph_list;
  34         size_t  iph_size;               /* size of hash table */
  35         u_long  iph_seed;               /* hashing seed */
  36         u_32_t  iph_flags;
  37         u_int   iph_unit;               /* IPL_LOG* */
  38         u_int   iph_ref;
  39         u_int   iph_type;               /* lookup or group map  - IPHASH_* */
  40         u_int   iph_masks;              /* IPv4 netmasks in use */
  41         char    iph_name[FR_GROUPLEN];  /* hash table number */
  42 } iphtable_t;
  43
  44 /* iph_type */
  45 #define IPHASH_LOOKUP   0
  46 #define IPHASH_GROUPMAP 1
  47 #define IPHASH_DELETE   2
  48 #define IPHASH_ANON     0x80000000
  49
  50
  51 typedef struct  iphtstat_s      {
  52         iphtable_t      *iphs_tables;
  53         u_long          iphs_numtables;
  54         u_long          iphs_numnodes;
  55         u_long          iphs_nomem;
  56         u_long          iphs_pad[16];
  57 } iphtstat_t;
  58
  59
  60 extern iphtable_t *ipf_htables[IPL_LOGSIZE];
  61
  62 extern iphtable_t *fr_existshtable __P((int, char *));
  63 extern int fr_clearhtable __P((iphtable_t *));
  64 extern void fr_htable_unload __P((void));
  65 extern int fr_newhtable __P((iplookupop_t *));
  66 extern iphtable_t *fr_findhtable __P((int, char *));
  67 extern int fr_removehtable __P((int, char *));
  68 extern size_t fr_flushhtable __P((iplookupflush_t *));
  69 extern int fr_addhtent __P((iphtable_t *, iphtent_t *));
  70 extern int fr_delhtent __P((iphtable_t *, iphtent_t *));
  71 extern int fr_derefhtable __P((iphtable_t *));
  72 extern int fr_derefhtent __P((iphtent_t *));
  73 extern int fr_delhtable __P((iphtable_t *));
  74 extern void *fr_iphmfindgroup __P((void *, void *));
  75 extern int fr_iphmfindip __P((void *, int, void *));
  76 extern int fr_gethtablestat __P((iplookupop_t *));
  77 extern int fr_htable_getnext __P((ipftoken_t *, ipflookupiter_t *));
  78 extern void fr_htable_iterderef __P((u_int, int, void *));
  79
  80 #endif /* __IP_HTABLE_H__ */