contrib/tcpdump/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 *bp, u_int length, const struct lladdr_info *src)
  41 {
  42         int srcNwref;
  43         int dstNwref;
  44
  45         ND_TCHECK2(*bp, 2);
  46         if (length < 2)
  47                 goto trunc;
  48         srcNwref = bp[0];
  49         dstNwref = bp[1];
  50         length -= 2;
  51         bp += 2;
  52
  53         ND_PRINT((ndo, "CALM FAST"));
  54         if (src != NULL)
  55                 ND_PRINT((ndo, " src:%s", (src->addr_string)(ndo, src->addr)));
  56         ND_PRINT((ndo, "; "));
  57         ND_PRINT((ndo, "SrcNwref:%d; ", srcNwref));
  58         ND_PRINT((ndo, "DstNwref:%d; ", dstNwref));
  59
  60         if (ndo->ndo_vflag)
  61                 ND_DEFAULTPRINT(bp, length);
  62         return;
  63
  64 trunc:
  65         ND_PRINT((ndo, "[|calm fast]"));
  66         return;
  67 }
  68
  69
  70 /*
  71  * Local Variables:
  72  * c-style: whitesmith
  73  * c-basic-offset: 8
  74  * End:
  75  */