| /* |
| * 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 1.8 2004-03-17 23:24:38 guy Exp $ (LBL)"; |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <tcpdump-stdinc.h> |
| |
| struct mbuf; |
| struct rtentry; |
| |
| #include <stdio.h> |
| #include <pcap.h> |
| |
| #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->len' 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); |
| } |