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-rw-r--r--print-calm-fast.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/print-calm-fast.c b/print-calm-fast.c
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+++ b/print-calm-fast.c
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+/*
+ * Copyright (c) 2013 The TCPDUMP project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code
+ * distributions retain the above copyright notice and this paragraph
+ * in its entirety, and (2) distributions including binary code include
+ * the above copyright notice and this paragraph in its entirety in
+ * the documentation or other materials provided with the distribution.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
+ * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
+ * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE.
+ *
+ * Original code by Ola Martin Lykkja (ola.lykkja@q-free.com)
+ */
+
+/* \summary: Communication access for land mobiles (CALM) printer */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "netdissect-stdinc.h"
+
+#define ND_LONGJMP_FROM_TCHECK
+#include "netdissect.h"
+#include "extract.h"
+#include "addrtoname.h"
+
+/*
+ ISO 29281:2009
+ Intelligent Transport Systems . Communications access for land mobiles (CALM)
+ CALM non-IP networking
+*/
+
+/*
+ * This is the top level routine of the printer. 'bp' points
+ * to the calm header of the packet.
+ */
+void
+calm_fast_print(netdissect_options *ndo, const u_char *bp, u_int length, const struct lladdr_info *src)
+{
+ ndo->ndo_protocol = "calm_fast";
+
+ ND_PRINT("CALM FAST");
+ if (src != NULL)
+ ND_PRINT(" src:%s", (src->addr_string)(ndo, src->addr));
+ ND_PRINT("; ");
+
+ if (length < 2) {
+ ND_PRINT(" (length %u < 2)", length);
+ goto invalid;
+ }
+
+ ND_PRINT("SrcNwref:%u; ", GET_U_1(bp));
+ length -= 1;
+ bp += 1;
+
+ ND_PRINT("DstNwref:%u; ", GET_U_1(bp));
+ length -= 1;
+ bp += 1;
+
+ if (ndo->ndo_vflag)
+ ND_DEFAULTPRINT(bp, length);
+ return;
+
+invalid:
+ nd_print_invalid(ndo);
+ ND_TCHECK_LEN(bp, length);
+}