X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/27d428c0a126e9ca6518b16f011cacc1caab1f2c..a63600a1fc28dbc7ae7ce9f996829c49a25fb33c:/print-lane.c diff --git a/print-lane.c b/print-lane.c index 81b0bb66..c5fa33be 100644 --- a/print-lane.c +++ b/print-lane.c @@ -20,41 +20,30 @@ * */ -#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 +/* \summary: ATM LANE printer */ #ifdef HAVE_CONFIG_H -#include "config.h" +#include #endif -#include - -#include -#include +#include "netdissect-stdinc.h" -#include "interface.h" -#include "addrtoname.h" +#define ND_LONGJMP_FROM_TCHECK +#include "netdissect.h" #include "extract.h" -#include "ether.h" - -#ifndef ETHER_ADDR_LEN -#define ETHER_ADDR_LEN 6 -#endif struct lecdatahdr_8023 { - u_int16_t le_header; - u_int8_t h_dest[ETHER_ADDR_LEN]; - u_int8_t h_source[ETHER_ADDR_LEN]; - u_int16_t h_type; + nd_uint16_t le_header; + nd_mac_addr h_dest; + nd_mac_addr h_source; + nd_uint16_t h_type; }; struct lane_controlhdr { - u_int16_t lec_header; - u_int8_t lec_proto; - u_int8_t lec_vers; - u_int16_t lec_opcode; + nd_uint16_t lec_header; + nd_uint8_t lec_proto; + nd_uint8_t lec_vers; + nd_uint16_t lec_opcode; }; static const struct tok lecop2str[] = { @@ -80,41 +69,35 @@ static const struct tok lecop2str[] = { static void lane_hdr_print(netdissect_options *ndo, const u_char *bp) { - (void)ND_PRINT((ndo, "lecid:%x ", EXTRACT_16BITS(bp))); + ND_PRINT("lecid:%x ", GET_BE_U_2(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) +lane_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen) { - struct lane_controlhdr *lec; + const struct lane_controlhdr *lec; - if (caplen < sizeof(struct lane_controlhdr)) { - printf("[|lane]"); - return; - } + ndo->ndo_protocol = "lane"; - lec = (struct lane_controlhdr *)p; - if (EXTRACT_16BITS(&lec->lec_header) == 0xff00) { + lec = (const struct lane_controlhdr *)p; + if (GET_BE_U_2(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))); + ND_PRINT("lec: proto %x vers %x %s", + GET_U_1(lec->lec_proto), + GET_U_1(lec->lec_vers), + tok2str(lecop2str, "opcode-#%u", GET_BE_U_2(lec->lec_opcode))); return; } /* * Go past the LE header. */ + ND_TCHECK_2(p); /* Needed */ length -= 2; caplen -= 2; p += 2; @@ -123,13 +106,5 @@ lane_print(const u_char *p, u_int length, u_int caplen) * 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)); + ether_print(ndo, p, length, caplen, lane_hdr_print, p - 2); }