156893Sfenner/* 2127668Sbms * Marko Kiiskila carnil@cs.tut.fi 3127668Sbms * 456893Sfenner * Tampere University of Technology - Telecommunications Laboratory 556893Sfenner * 656893Sfenner * Permission to use, copy, modify and distribute this 756893Sfenner * software and its documentation is hereby granted, 856893Sfenner * provided that both the copyright notice and this 956893Sfenner * permission notice appear in all copies of the software, 1056893Sfenner * derivative works or modified versions, and any portions 1156893Sfenner * thereof, that both notices appear in supporting 1256893Sfenner * documentation, and that the use of this software is 1356893Sfenner * acknowledged in any publications resulting from using 1456893Sfenner * the software. 15127668Sbms * 1656893Sfenner * TUT ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 1756893Sfenner * CONDITION AND DISCLAIMS ANY LIABILITY OF ANY KIND FOR 1856893Sfenner * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS 1956893Sfenner * SOFTWARE. 20127668Sbms * 2156893Sfenner */ 2256893Sfenner 2356893Sfenner#ifndef lint 24127668Sbmsstatic const char rcsid[] _U_ = 25190207Srpaulo "@(#) $Header: /tcpdump/master/tcpdump/print-lane.c,v 1.25 2005-11-13 12:12:42 guy Exp $ (LBL)"; 2656893Sfenner#endif 2756893Sfenner 2856893Sfenner#ifdef HAVE_CONFIG_H 2956893Sfenner#include "config.h" 3056893Sfenner#endif 3156893Sfenner 32127668Sbms#include <tcpdump-stdinc.h> 3356893Sfenner 3456893Sfenner#include <stdio.h> 3556893Sfenner#include <pcap.h> 3656893Sfenner 3756893Sfenner#include "interface.h" 3856893Sfenner#include "addrtoname.h" 39127668Sbms#include "extract.h" 4075115Sfenner#include "ether.h" 4156893Sfenner#include "lane.h" 4256893Sfenner 43127668Sbmsstatic const struct tok lecop2str[] = { 44127668Sbms { 0x0001, "configure request" }, 45127668Sbms { 0x0101, "configure response" }, 46127668Sbms { 0x0002, "join request" }, 47127668Sbms { 0x0102, "join response" }, 48127668Sbms { 0x0003, "ready query" }, 49127668Sbms { 0x0103, "ready indication" }, 50127668Sbms { 0x0004, "register request" }, 51127668Sbms { 0x0104, "register response" }, 52127668Sbms { 0x0005, "unregister request" }, 53127668Sbms { 0x0105, "unregister response" }, 54127668Sbms { 0x0006, "ARP request" }, 55127668Sbms { 0x0106, "ARP response" }, 56127668Sbms { 0x0007, "flush request" }, 57127668Sbms { 0x0107, "flush response" }, 58127668Sbms { 0x0008, "NARP request" }, 59127668Sbms { 0x0009, "topology request" }, 60127668Sbms { 0, NULL } 61127668Sbms}; 62127668Sbms 63214478Srpaulostatic void 64235530Sdelphijlane_hdr_print(netdissect_options *ndo, const u_char *bp) 6556893Sfenner{ 66235530Sdelphij (void)ND_PRINT((ndo, "lecid:%x ", EXTRACT_16BITS(bp))); 6756893Sfenner} 6856893Sfenner 6956893Sfenner/* 70127668Sbms * This is the top level routine of the printer. 'p' points 71127668Sbms * to the LANE header of the packet, 'h->ts' is the timestamp, 72146773Ssam * 'h->len' is the length of the packet off the wire, and 'h->caplen' 7356893Sfenner * is the number of bytes actually captured. 74127668Sbms * 75127668Sbms * This assumes 802.3, not 802.5, LAN emulation. 7656893Sfenner */ 7756893Sfennervoid 78127668Sbmslane_print(const u_char *p, u_int length, u_int caplen) 7956893Sfenner{ 80127668Sbms struct lane_controlhdr *lec; 8156893Sfenner 82127668Sbms if (caplen < sizeof(struct lane_controlhdr)) { 83127668Sbms printf("[|lane]"); 84127668Sbms return; 85127668Sbms } 8656893Sfenner 87127668Sbms lec = (struct lane_controlhdr *)p; 88127668Sbms if (EXTRACT_16BITS(&lec->lec_header) == 0xff00) { 89127668Sbms /* 90127668Sbms * LE Control. 91127668Sbms */ 92127668Sbms printf("lec: proto %x vers %x %s", 93127668Sbms lec->lec_proto, lec->lec_vers, 94127668Sbms tok2str(lecop2str, "opcode-#%u", EXTRACT_16BITS(&lec->lec_opcode))); 95127668Sbms return; 96127668Sbms } 97127668Sbms 9856893Sfenner /* 99214478Srpaulo * Go past the LE header. 10056893Sfenner */ 101214478Srpaulo length -= 2; 102214478Srpaulo caplen -= 2; 103214478Srpaulo p += 2; 10456893Sfenner 10556893Sfenner /* 106214478Srpaulo * Now print the encapsulated frame, under the assumption 107214478Srpaulo * that it's an Ethernet frame. 10856893Sfenner */ 109235530Sdelphij ether_print(gndo, p, length, caplen, lane_hdr_print, p - 2); 11056893Sfenner} 111127668Sbms 112127668Sbmsu_int 113127668Sbmslane_if_print(const struct pcap_pkthdr *h, const u_char *p) 114127668Sbms{ 115127668Sbms lane_print(p, h->len, h->caplen); 116127668Sbms 117127668Sbms return (sizeof(struct lecdatahdr_8023)); 118127668Sbms} 119