diff options
Diffstat (limited to 'freebsd/contrib/tcpdump/print-symantec.c')
| -rw-r--r-- | freebsd/contrib/tcpdump/print-symantec.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/freebsd/contrib/tcpdump/print-symantec.c b/freebsd/contrib/tcpdump/print-symantec.c new file mode 100644 index 00000000..d42e6faa --- /dev/null +++ b/freebsd/contrib/tcpdump/print-symantec.c @@ -0,0 +1,122 @@ +#include <machine/rtems-bsd-user-space.h> + +/* + * 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. + */ +#ifndef lint +static const char rcsid[] _U_ = + "@(#) $Header: /tcpdump/master/tcpdump/print-symantec.c,v 1.5 2005-07-07 01:22:21 guy Exp $ (LBL)"; +#endif + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <tcpdump-stdinc.h> + +#include <stdio.h> +#include <pcap.h> + +#include "interface.h" +#include "extract.h" +#include "addrtoname.h" +#include "ethertype.h" + +#include "ether.h" + +struct symantec_header { + u_int8_t stuff1[6]; + u_int16_t ether_type; + u_int8_t stuff2[36]; +}; + +static inline void +symantec_hdr_print(register const u_char *bp, u_int length) +{ + register const struct symantec_header *sp; + u_int16_t etype; + + sp = (const struct symantec_header *)bp; + + etype = EXTRACT_16BITS(&sp->ether_type); + if (!qflag) { + if (etype <= ETHERMTU) + (void)printf("invalid ethertype %u", etype); + else + (void)printf("ethertype %s (0x%04x)", + tok2str(ethertype_values,"Unknown", etype), + etype); + } else { + if (etype <= ETHERMTU) + (void)printf("invalid ethertype %u", etype); + else + (void)printf("%s", tok2str(ethertype_values,"Unknown Ethertype (0x%04x)", etype)); + } + + (void)printf(", 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. + */ +u_int +symantec_if_print(const struct pcap_pkthdr *h, const u_char *p) +{ + u_int length = h->len; + u_int caplen = h->caplen; + struct symantec_header *sp; + u_short ether_type; + + if (caplen < sizeof (struct symantec_header)) { + printf("[|symantec]"); + return caplen; + } + + if (eflag) + symantec_hdr_print(p, length); + + length -= sizeof (struct symantec_header); + caplen -= sizeof (struct symantec_header); + sp = (struct symantec_header *)p; + p += sizeof (struct symantec_header); + + ether_type = EXTRACT_16BITS(&sp->ether_type); + + if (ether_type <= ETHERMTU) { + /* ether_type not known, print raw packet */ + if (!eflag) + symantec_hdr_print((u_char *)sp, length + sizeof (struct symantec_header)); + + if (!suppress_default_print) + default_print(p, caplen); + } else if (ethertype_print(gndo, ether_type, p, length, caplen) == 0) { + /* ether_type not known, print raw packet */ + if (!eflag) + symantec_hdr_print((u_char *)sp, length + sizeof (struct symantec_header)); + + if (!suppress_default_print) + default_print(p, caplen); + } + + return (sizeof (struct symantec_header)); +} |