/* * Copyright (c) 1997 Yen Yen Lim and North Dakota State University * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Yen Yen Lim and North Dakota State University * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef lint static const char rcsid[] _U_ = "@(#) $Header: /tcpdump/master/tcpdump/print-sunatm.c,v 1.5.2.2 2003/11/16 08:51:47 guy Exp $ (LBL)"; #endif #ifdef HAVE_CONFIG_H #include "config.h" #endif #include struct mbuf; struct rtentry; #include #include #include "interface.h" #include "extract.h" #include "addrtoname.h" #include "atm.h" #include "atmuni31.h" /* SunATM header for ATM packet */ #define DIR_POS 0 /* Direction (0x80 = transmit, 0x00 = receive) */ #define VPI_POS 1 /* VPI */ #define VCI_POS 2 /* VCI */ #define PKT_BEGIN_POS 4 /* Start of the ATM packet */ /* Protocol type values in the bottom for bits of the byte at SUNATM_DIR_POS. */ #define PT_LANE 0x01 /* LANE */ #define PT_LLC 0x02 /* LLC encapsulation */ /* * This is the top level routine of the printer. 'p' points * to the SunATM pseudo-header for the packet, 'h->ts' is the timestamp, * 'h->length' is the length of the packet off the wire, and 'h->caplen' * is the number of bytes actually captured. */ u_int sunatm_if_print(const struct pcap_pkthdr *h, const u_char *p) { u_int caplen = h->caplen; u_int length = h->len; u_short vci; u_char vpi; u_int traftype; if (caplen < PKT_BEGIN_POS) { printf("[|atm]"); return (caplen); } if (eflag) { if (p[DIR_POS] & 0x80) printf("Tx: "); else printf("Rx: "); } switch (p[DIR_POS] & 0x0f) { case PT_LANE: traftype = ATM_LANE; break; case PT_LLC: traftype = ATM_LLC; break; default: traftype = ATM_UNKNOWN; break; } vci = EXTRACT_16BITS(&p[VCI_POS]); vpi = p[VPI_POS]; p += PKT_BEGIN_POS; caplen -= PKT_BEGIN_POS; length -= PKT_BEGIN_POS; atm_print(vpi, vci, traftype, p, length, caplen); return (PKT_BEGIN_POS); }