dist/tcpdump/print-enc.c

   1 /*      $NetBSD$        */
   2
   3 /*      $OpenBSD: print-enc.c,v 1.7 2002/02/19 19:39:40 millert Exp $   */
   4
   5 /*
   6  * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996
   7  *      The Regents of the University of California.  All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that: (1) source code distributions
  11  * retain the above copyright notice and this paragraph in its entirety, (2)
  12  * distributions including binary code include the above copyright notice and
  13  * this paragraph in its entirety in the documentation or other materials
  14  * provided with the distribution, and (3) all advertising materials mentioning
  15  * features or use of this software display the following acknowledgement:
  16  * ``This product includes software developed by the University of California,
  17  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  18  * the University nor the names of its contributors may be used to endorse
  19  * or promote products derived from this software without specific prior
  20  * written permission.
  21  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  22  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  23  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  24  */
  25
  26 #include <sys/cdefs.h>
  27 #ifndef lint
  28 #if 0
  29 static const char rcsid[] _U_ =
  30     "@(#) Header: /tcpdump/master/tcpdump/print-enc.c,v 1.4 2005/04/06 21:32:39 mcr Exp (LBL)";
  31 #else
  32 __RCSID("$NetBSD: tcpdump2rcsid.ex,v 1.1 2001/06/25 20:09:58 itojun Exp $");
  33 #endif
  34 #endif
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include <tcpdump-stdinc.h>
  41
  42 #include <pcap.h>
  43
  44 #include "interface.h"
  45 #include "addrtoname.h"
  46
  47 #include "enc.h"
  48
  49 #define ENC_PRINT_TYPE(wh, xf, nam) \
  50         if ((wh) & (xf)) { \
  51                 printf("%s%s", nam, (wh) == (xf) ? "): " : ","); \
  52                 (wh) &= ~(xf); \
  53         }
  54
  55 u_int
  56 enc_if_print(const struct pcap_pkthdr *h, register const u_char *p)
  57 {
  58         register u_int length = h->len;
  59         register u_int caplen = h->caplen;
  60         int flags;
  61         const struct enchdr *hdr;
  62
  63         if (caplen < ENC_HDRLEN) {
  64                 printf("[|enc]");
  65                 goto out;
  66         }
  67
  68         hdr = (struct enchdr *)p;
  69         flags = hdr->flags;
  70         if (flags == 0)
  71                 printf("(unprotected): ");
  72         else
  73                 printf("(");
  74         ENC_PRINT_TYPE(flags, M_AUTH, "authentic");
  75         ENC_PRINT_TYPE(flags, M_CONF, "confidential");
  76         /* ENC_PRINT_TYPE(flags, M_TUNNEL, "tunnel"); */
  77         printf("SPI 0x%08x: ", (u_int32_t)ntohl(hdr->spi));
  78
  79         length -= ENC_HDRLEN;
  80         /* XXX - use the address family */
  81         ip_print(gndo, p + ENC_HDRLEN, length);
  82
  83 out:
  84         return (ENC_HDRLEN);
  85 }
  86
  87
  88 /*
  89  * Local Variables:
  90  * c-style: whitesmith
  91  * c-basic-offset: 8
  92  * End:
  93  */