bsd/netinet/ip_frag.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (C) 1993-1997 by Darren Reed.
  24  *
  25  * Redistribution and use in source and binary forms are permitted
  26  * provided that this notice is preserved and due credit is given
  27  * to the original author and the contributors.
  28  *
  29  * @(#)ip_frag.h        1.5 3/24/96
  30  */
  31
  32 #ifndef __IP_FRAG_H__
  33 #define __IP_FRAG_H__
  34
  35 #define IPFT_SIZE       257
  36
  37 typedef struct  ipfr    {
  38         struct  ipfr    *ipfr_next, *ipfr_prev;
  39         void    *ipfr_data;
  40         struct  in_addr ipfr_src;
  41         struct  in_addr ipfr_dst;
  42         u_short ipfr_id;
  43         u_char  ipfr_p;
  44         u_char  ipfr_tos;
  45         u_short ipfr_off;
  46         u_short ipfr_ttl;
  47         u_char  ipfr_pass;
  48 } ipfr_t;
  49
  50
  51 typedef struct  ipfrstat {
  52         u_long  ifs_exists;     /* add & already exists */
  53         u_long  ifs_nomem;
  54         u_long  ifs_new;
  55         u_long  ifs_hits;
  56         u_long  ifs_expire;
  57         u_long  ifs_inuse;
  58         struct  ipfr    **ifs_table;
  59         struct  ipfr    **ifs_nattab;
  60 } ipfrstat_t;
  61
  62 #define IPFR_CMPSZ      (4 + 4 + 2 + 1 + 1)
  63
  64 extern  int     fr_ipfrttl;
  65 extern  ipfrstat_t      *ipfr_fragstats __P((void));
  66 extern  int     ipfr_newfrag __P((ip_t *, fr_info_t *, int));
  67 extern  int     ipfr_nat_newfrag __P((ip_t *, fr_info_t *, int, struct nat *));
  68 extern  nat_t   *ipfr_nat_knownfrag __P((ip_t *, fr_info_t *));
  69 extern  int     ipfr_knownfrag __P((ip_t *, fr_info_t *));
  70 extern  void    ipfr_forget __P((void *));
  71 extern  void    ipfr_unload __P((void));
  72
  73 #if     (BSD >= 199306) || SOLARIS || defined(__sgi)
  74 extern  void    ipfr_slowtimer __P((void));
  75 #else
  76 extern  int     ipfr_slowtimer __P((void));
  77 #endif
  78
  79 #endif  /* __IP_FIL_H__ */