diff options
Diffstat (limited to 'freebsd/contrib/tcpdump/print-lane.c')
-rw-r--r-- | freebsd/contrib/tcpdump/print-lane.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/freebsd/contrib/tcpdump/print-lane.c b/freebsd/contrib/tcpdump/print-lane.c new file mode 100644 index 00000000..b637b984 --- /dev/null +++ b/freebsd/contrib/tcpdump/print-lane.c @@ -0,0 +1,120 @@ +#include <machine/rtems-bsd-user-space.h> + +/* + * Marko Kiiskila carnil@cs.tut.fi + * + * Tampere University of Technology - Telecommunications Laboratory + * + * Permission to use, copy, modify and distribute this + * software and its documentation is hereby granted, + * provided that both the copyright notice and this + * permission notice appear in all copies of the software, + * derivative works or modified versions, and any portions + * thereof, that both notices appear in supporting + * documentation, and that the use of this software is + * acknowledged in any publications resulting from using + * the software. + * + * TUT ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION AND DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS + * SOFTWARE. + * + */ + +#ifndef lint +static const char rcsid[] _U_ = + "@(#) $Header: /tcpdump/master/tcpdump/print-lane.c,v 1.25 2005-11-13 12:12:42 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 "addrtoname.h" +#include "extract.h" +#include "ether.h" +#include "lane.h" + +static const struct tok lecop2str[] = { + { 0x0001, "configure request" }, + { 0x0101, "configure response" }, + { 0x0002, "join request" }, + { 0x0102, "join response" }, + { 0x0003, "ready query" }, + { 0x0103, "ready indication" }, + { 0x0004, "register request" }, + { 0x0104, "register response" }, + { 0x0005, "unregister request" }, + { 0x0105, "unregister response" }, + { 0x0006, "ARP request" }, + { 0x0106, "ARP response" }, + { 0x0007, "flush request" }, + { 0x0107, "flush response" }, + { 0x0008, "NARP request" }, + { 0x0009, "topology request" }, + { 0, NULL } +}; + +static void +lane_hdr_print(netdissect_options *ndo, const u_char *bp) +{ + (void)ND_PRINT((ndo, "lecid:%x ", EXTRACT_16BITS(bp))); +} + +/* + * This is the top level routine of the printer. 'p' points + * to the LANE 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. + * + * This assumes 802.3, not 802.5, LAN emulation. + */ +void +lane_print(const u_char *p, u_int length, u_int caplen) +{ + struct lane_controlhdr *lec; + + if (caplen < sizeof(struct lane_controlhdr)) { + printf("[|lane]"); + return; + } + + lec = (struct lane_controlhdr *)p; + if (EXTRACT_16BITS(&lec->lec_header) == 0xff00) { + /* + * LE Control. + */ + printf("lec: proto %x vers %x %s", + lec->lec_proto, lec->lec_vers, + tok2str(lecop2str, "opcode-#%u", EXTRACT_16BITS(&lec->lec_opcode))); + return; + } + + /* + * Go past the LE header. + */ + length -= 2; + caplen -= 2; + p += 2; + + /* + * Now print the encapsulated frame, under the assumption + * that it's an Ethernet frame. + */ + ether_print(gndo, p, length, caplen, lane_hdr_print, p - 2); +} + +u_int +lane_if_print(const struct pcap_pkthdr *h, const u_char *p) +{ + lane_print(p, h->len, h->caplen); + + return (sizeof(struct lecdatahdr_8023)); +} |