ip_htable.h

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    1 #ifndef __IP_HTABLE_H__
    2 #define __IP_HTABLE_H__
    3 
    4 #include "netinet/ip_lookup.h"
    5 
    6 typedef struct  iphtent_s       {
    7         struct  iphtent_s       *ipe_next, **ipe_pnext;
    8         struct  iphtent_s       *ipe_hnext, **ipe_phnext;
    9         struct  iphtent_s       *ipe_dnext, **ipe_pdnext;
   10         struct  iphtable_s      *ipe_owner;
   11         void            *ipe_ptr;
   12         i6addr_t        ipe_addr;
   13         i6addr_t        ipe_mask;
   14         U_QUAD_T        ipe_hits;
   15         U_QUAD_T        ipe_bytes;
   16         u_long          ipe_die;
   17         int             ipe_uid;
   18         int             ipe_ref;
   19         int             ipe_unit;
   20         char            ipe_family;
   21         char            ipe_xxx[3];
   22         union   {
   23                 char    ipeu_char[16];
   24                 u_long  ipeu_long;
   25                 u_int   ipeu_int;
   26         } ipe_un;
   27 } iphtent_t;
   28 
   29 #define ipe_value       ipe_un.ipeu_int
   30 #define ipe_group       ipe_un.ipeu_char
   31 
   32 #define IPE_V4_HASH_FN(a, m, s) ((((m) ^ (a)) - 1 - ((a) >> 8)) % (s))
   33 #define IPE_V6_HASH_FN(a, m, s) (((((m)[0] ^ (a)[0]) - ((a)[0] >> 8)) + \
   34                                   (((m)[1] & (a)[1]) - ((a)[1] >> 8)) + \
   35                                   (((m)[2] & (a)[2]) - ((a)[2] >> 8)) + \
   36                                   (((m)[3] & (a)[3]) - ((a)[3] >> 8))) % (s))
   37 
   38 typedef struct  iphtable_s      {
   39         ipfrwlock_t     iph_rwlock;
   40         struct  iphtable_s      *iph_next, **iph_pnext;
   41         struct  iphtent_s       **iph_table;
   42         struct  iphtent_s       *iph_list;
   43         struct  iphtent_s       **iph_tail;
   44 #ifdef USE_INET6
   45         ipf_v6_masktab_t        iph_v6_masks;
   46 #endif
   47         ipf_v4_masktab_t        iph_v4_masks;
   48         size_t  iph_size;               /* size of hash table */
   49         u_long  iph_seed;               /* hashing seed */
   50         u_32_t  iph_flags;
   51         u_int   iph_unit;               /* IPL_LOG* */
   52         u_int   iph_ref;
   53         u_int   iph_type;               /* lookup or group map  - IPHASH_* */
   54         u_int   iph_maskset[4];         /* netmasks in use */
   55         char    iph_name[FR_GROUPLEN];  /* hash table number */
   56 } iphtable_t;
   57 
   58 /* iph_type */
   59 #define IPHASH_LOOKUP   0
   60 #define IPHASH_GROUPMAP 1
   61 #define IPHASH_DELETE   2
   62 #define IPHASH_ANON     0x80000000
   63 
   64 
   65 typedef struct  iphtstat_s      {
   66         iphtable_t      *iphs_tables;
   67         u_long          iphs_numtables;
   68         u_long          iphs_numnodes;
   69         u_long          iphs_nomem;
   70         u_long          iphs_pad[16];
   71 } iphtstat_t;
   72 
   73 
   74 extern void *ipf_iphmfindgroup(ipf_main_softc_t *, void *, void *);
   75 extern iphtable_t *ipf_htable_find(void *, int, char *);
   76 extern ipf_lookup_t ipf_htable_backend;
   77 #ifndef _KERNEL
   78 extern  void    ipf_htable_dump(ipf_main_softc_t *, void *);
   79 #endif
   80 
   81 #endif /* __IP_HTABLE_H__ */

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FreeBSD/Linux Kernel Cross Reference sys/netpfil/ipfilter/netinet/ip_htable.h

FreeBSD/Linux Kernel Cross Reference
sys/netpfil/ipfilter/netinet/ip_htable.h