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-rw-r--r--print-symantec.c110
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diff --git a/print-symantec.c b/print-symantec.c
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+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000
+ * The Regents of the University of California. All rights reserved.
+ *
+ * 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, (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, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+ * the University nor the names of its contributors may be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ * 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.
+ */
+
+/* \summary: Symantec Enterprise Firewall 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 "ethertype.h"
+
+struct symantec_header {
+ nd_byte stuff1[6];
+ nd_uint16_t ether_type;
+ nd_byte stuff2[36];
+};
+
+static void
+symantec_hdr_print(netdissect_options *ndo, const u_char *bp, u_int length)
+{
+ const struct symantec_header *sp;
+ uint16_t etype;
+
+ sp = (const struct symantec_header *)bp;
+
+ etype = GET_BE_U_2(sp->ether_type);
+ if (!ndo->ndo_qflag) {
+ if (etype <= MAX_ETHERNET_LENGTH_VAL)
+ ND_PRINT("invalid ethertype %u", etype);
+ else
+ ND_PRINT("ethertype %s (0x%04x)",
+ tok2str(ethertype_values,"Unknown", etype),
+ etype);
+ } else {
+ if (etype <= MAX_ETHERNET_LENGTH_VAL)
+ ND_PRINT("invalid ethertype %u", etype);
+ else
+ ND_PRINT("%s", tok2str(ethertype_values,"Unknown Ethertype (0x%04x)", etype));
+ }
+
+ ND_PRINT(", length %u: ", length);
+}
+
+/*
+ * This is the top level routine of the printer. 'p' points
+ * to the ether header of the packet, 'h->ts' is the timestamp,
+ * 'h->len' is the length of the packet off the wire, and 'h->caplen'
+ * is the number of bytes actually captured.
+ */
+void
+symantec_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
+{
+ u_int length = h->len;
+ u_int caplen = h->caplen;
+ const struct symantec_header *sp;
+ u_short ether_type;
+
+ ndo->ndo_protocol = "symantec";
+ ND_TCHECK_LEN(p, sizeof(struct symantec_header));
+
+ ndo->ndo_ll_hdr_len += sizeof (struct symantec_header);
+ if (ndo->ndo_eflag)
+ symantec_hdr_print(ndo, p, length);
+
+ length -= sizeof (struct symantec_header);
+ caplen -= sizeof (struct symantec_header);
+ sp = (const struct symantec_header *)p;
+ p += sizeof (struct symantec_header);
+
+ ether_type = GET_BE_U_2(sp->ether_type);
+
+ if (ether_type <= MAX_ETHERNET_LENGTH_VAL) {
+ /* ether_type not known, print raw packet */
+ if (!ndo->ndo_eflag)
+ symantec_hdr_print(ndo, (const u_char *)sp, length + sizeof (struct symantec_header));
+
+ if (!ndo->ndo_suppress_default_print)
+ ND_DEFAULTPRINT(p, caplen);
+ } else if (ethertype_print(ndo, ether_type, p, length, caplen, NULL, NULL) == 0) {
+ /* ether_type not known, print raw packet */
+ if (!ndo->ndo_eflag)
+ symantec_hdr_print(ndo, (const u_char *)sp, length + sizeof (struct symantec_header));
+
+ if (!ndo->ndo_suppress_default_print)
+ ND_DEFAULTPRINT(p, caplen);
+ }
+}