The Tcpdump Group git mirrors - tcpdump/blob - print-calm-fast.c

   1 /*
   2  * Copyright (c) 2013 The TCPDUMP project
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that: (1) source code
   6  * distributions retain the above copyright notice and this paragraph
   7  * in its entirety, and (2) distributions including binary code include
   8  * the above copyright notice and this paragraph in its entirety in
   9  * the documentation or other materials provided with the distribution.
  10  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
  11  * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
  12  * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  13  * FOR A PARTICULAR PURPOSE.
  14  *
  15  * Original code by Ola Martin Lykkja (ola.lykkja@q-free.com)
  16  */
  17
  18 /* \summary: Communication access for land mobiles (CALM) printer */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include <netdissect-stdinc.h>
  25
  26 #include "netdissect.h"
  27 #include "addrtoname.h"
  28
  29 /*
  30    ISO 29281:2009
  31    Intelligent Transport Systems . Communications access for land mobiles (CALM)
  32    CALM non-IP networking
  33 */
  34
  35 /*
  36  * This is the top level routine of the printer.  'bp' points
  37  * to the calm header of the packet.
  38  */
  39 void
  40 calm_fast_print(netdissect_options *ndo, const u_char *eth, const u_char *bp, u_int length)
  41 {
  42         int srcNwref = bp[0];
  43         int dstNwref = bp[1];
  44         length -= 2;
  45         bp += 2;
  46
  47         ND_PRINT((ndo, "CALM FAST src:%s; ", etheraddr_string(ndo, eth+6)));
  48         ND_PRINT((ndo, "SrcNwref:%d; ", srcNwref));
  49         ND_PRINT((ndo, "DstNwref:%d; ", dstNwref));
  50
  51         if (ndo->ndo_vflag)
  52                 ND_DEFAULTPRINT(bp, length);
  53 }
  54
  55
  56 /*
  57  * Local Variables:
  58  * c-style: whitesmith
  59  * c-basic-offset: 8
  60  * End:
  61  */