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Current Path: /usr/src/contrib/tcpdump

📁 ..
📄 CHANGES(57.87 KB)
📄 CONTRIBUTING(5.93 KB)
📄 CREDITS(14.57 KB)
📄 INSTALL.txt(5.25 KB)
📄 LICENSE(873 B)
📄 Makefile-devel-adds(614 B)
📄 Makefile.in(9.96 KB)
📄 PLATFORMS(567 B)
📄 README(9.04 KB)
📄 README.md(9.04 KB)
📄 VERSION(6 B)
📄 addrtoname.c(33.19 KB)
📄 addrtoname.h(2.78 KB)
📄 addrtostr.c(5.64 KB)
📄 addrtostr.h(2.03 KB)
📄 af.c(1.96 KB)
📄 af.h(1.81 KB)
📄 ah.h(2.34 KB)
📄 appletalk.h(4.06 KB)
📄 ascii_strcasecmp.c(3.5 KB)
📄 ascii_strcasecmp.h(1.49 KB)
📄 atime.awk(529 B)
📄 atm.h(1.14 KB)
📄 bpf_dump.c(1.9 KB)
📄 chdlc.h(1.31 KB)
📄 checksum.c(5.25 KB)
📄 config.guess(43.17 KB)
📄 config.h.in(11.19 KB)
📄 config.sub(34.93 KB)
📄 configure(255.88 KB)
📄 configure.ac(25.05 KB)
📄 configure.in(25.66 KB)
📄 cpack.c(3.92 KB)
📄 cpack.h(2.37 KB)
📄 ether.h(2.34 KB)
📄 ethertype.h(5.58 KB)
📄 extract.h(11.48 KB)
📄 funcattrs.h(4.42 KB)
📄 getopt_long.h(2.52 KB)
📄 gmpls.c(5.82 KB)
📄 gmpls.h(1.38 KB)
📄 gmt2local.c(2.01 KB)
📄 gmt2local.h(1.21 KB)
📄 in_cksum.c(6.44 KB)
📄 install-sh(5.45 KB)
📄 interface.h(2.29 KB)
📄 ip.h(5.75 KB)
📄 ip6.h(7.6 KB)
📄 ipproto.c(16.49 KB)
📄 ipproto.h(4.72 KB)
📄 l2vpn.c(3.36 KB)
📄 l2vpn.h(781 B)
📁 lbl
📄 llc.h(3.72 KB)
📄 machdep.c(2.58 KB)
📄 machdep.h(1.24 KB)
📄 makemib(6.41 KB)
📄 mib.h(26.33 KB)
📁 missing
📄 mkdep(2.43 KB)
📄 mpls.h(1.93 KB)
📄 nameser.h(10.8 KB)
📄 netdissect-stdinc.h(9.93 KB)
📄 netdissect.c(3.38 KB)
📄 netdissect.h(30.13 KB)
📄 nfs.h(13.37 KB)
📄 nfsfh.h(2.57 KB)
📄 nlpid.c(1.27 KB)
📄 nlpid.h(1.3 KB)
📄 openflow.h(2.14 KB)
📄 ospf.h(10.21 KB)
📄 oui.c(3.83 KB)
📄 oui.h(4.06 KB)
📄 packetdat.awk(1.39 KB)
📄 parsenfsfh.c(12.87 KB)
📄 pcap-missing.h(1.8 KB)
📄 pcap_dump_ftell.c(1.29 KB)
📄 ppp.h(3.07 KB)
📄 print-802_11.c(91.47 KB)
📄 print-802_15_4.c(5.5 KB)
📄 print-ah.c(2.02 KB)
📄 print-ahcp.c(10.73 KB)
📄 print-aodv.c(15.98 KB)
📄 print-aoe.c(11.13 KB)
📄 print-ap1394.c(4 KB)
📄 print-arcnet.c(8.83 KB)
📄 print-arp.c(14.57 KB)
📄 print-ascii.c(6.23 KB)
📄 print-atalk.c(16.76 KB)
📄 print-atm.c(16.81 KB)
📄 print-babel.c(23.79 KB)
📄 print-beep.c(1.71 KB)
📄 print-bfd.c(16.5 KB)
📄 print-bgp.c(99.77 KB)
📄 print-bootp.c(30.07 KB)
📄 print-bt.c(2.21 KB)
📄 print-calm-fast.c(1.81 KB)
📄 print-carp.c(2.43 KB)
📄 print-cdp.c(11.16 KB)
📄 print-cfm.c(24.19 KB)
📄 print-chdlc.c(5.88 KB)
📄 print-cip.c(2.5 KB)
📄 print-cnfp.c(13.69 KB)
📄 print-dccp.c(17.75 KB)
📄 print-decnet.c(37.63 KB)
📄 print-dhcp6.c(23.22 KB)
📄 print-domain.c(18.44 KB)
📄 print-dtp.c(3.03 KB)
📄 print-dvmrp.c(8.98 KB)
📄 print-eap.c(9.26 KB)
📄 print-egp.c(8.69 KB)
📄 print-eigrp.c(19.49 KB)
📄 print-enc.c(4.2 KB)
📄 print-esp.c(21.46 KB)
📄 print-ether.c(12.91 KB)
📄 print-fddi.c(10.51 KB)
📄 print-forces.c(45.01 KB)
📄 print-fr.c(31.99 KB)
📄 print-frag6.c(2.36 KB)
📄 print-ftp.c(973 B)
📄 print-geneve.c(6.13 KB)
📄 print-geonet.c(6.72 KB)
📄 print-gre.c(9.72 KB)
📄 print-hncp.c(26.39 KB)
📄 print-hsrp.c(4.57 KB)
📄 print-http.c(1.51 KB)
📄 print-icmp.c(22.7 KB)
📄 print-icmp6.c(59.81 KB)
📄 print-igmp.c(10.05 KB)
📄 print-igrp.c(4.64 KB)
📄 print-ip.c(17.04 KB)
📄 print-ip6.c(10.57 KB)
📄 print-ip6opts.c(5.53 KB)
📄 print-ipcomp.c(2.32 KB)
📄 print-ipfc.c(4.41 KB)
📄 print-ipnet.c(2.78 KB)
📄 print-ipx.c(6.42 KB)
📄 print-isakmp.c(81.72 KB)
📄 print-isoclns.c(107.61 KB)
📄 print-juniper.c(48.42 KB)
📄 print-krb.c(6.26 KB)
📄 print-l2tp.c(23.94 KB)
📄 print-lane.c(3.04 KB)
📄 print-ldp.c(24.35 KB)
📄 print-lisp.c(15.23 KB)
📄 print-llc.c(16.68 KB)
📄 print-lldp.c(57.26 KB)
📄 print-lmp.c(38.11 KB)
📄 print-loopback.c(3.63 KB)
📄 print-lspping.c(51.64 KB)
📄 print-lwapp.c(13.01 KB)
📄 print-lwres.c(14.08 KB)
📄 print-m3ua.c(10.92 KB)
📄 print-medsa.c(5.57 KB)
📄 print-mobile.c(3.28 KB)
📄 print-mobility.c(9.74 KB)
📄 print-mpcp.c(7.87 KB)
📄 print-mpls.c(5.31 KB)
📄 print-mptcp.c(13.68 KB)
📄 print-msdp.c(2.69 KB)
📄 print-msnlb.c(2.39 KB)
📄 print-nflog.c(4.4 KB)
📄 print-nfs.c(42.84 KB)
📄 print-nsh.c(5.39 KB)
📄 print-ntp.c(13.34 KB)
📄 print-null.c(4.01 KB)
📄 print-olsr.c(23.42 KB)
📄 print-openflow-1.0.c(76.63 KB)
📄 print-openflow.c(4.77 KB)
📄 print-ospf.c(39.49 KB)
📄 print-ospf6.c(29.86 KB)
📄 print-otv.c(2.1 KB)
📄 print-pflog.c(4.86 KB)
📄 print-pfsync.c(12.53 KB)
📄 print-pgm.c(22.17 KB)
📄 print-pim.c(32.59 KB)
📄 print-pktap.c(5.18 KB)
📄 print-ppi.c(2.68 KB)
📄 print-ppp.c(46.16 KB)
📄 print-pppoe.c(5.65 KB)
📄 print-pptp.c(25.9 KB)
📄 print-radius.c(35.1 KB)
📄 print-raw.c(1.52 KB)
📄 print-resp.c(16.5 KB)
📄 print-rip.c(9.19 KB)
📄 print-ripng.c(6 KB)
📄 print-rpki-rtr.c(10.83 KB)
📄 print-rrcp.c(4.56 KB)
📄 print-rsvp.c(78.61 KB)
📄 print-rt6.c(2.66 KB)
📄 print-rtsp.c(1.16 KB)
📄 print-rx.c(66.92 KB)
📄 print-sctp.c(23.13 KB)
📄 print-sflow.c(31.91 KB)
📄 print-sip.c(1.29 KB)
📄 print-sl.c(6.95 KB)
📄 print-sll.c(9.2 KB)
📄 print-slow.c(25.17 KB)
📄 print-smb.c(43.19 KB)
📄 print-smtp.c(983 B)
📄 print-snmp.c(43.17 KB)
📄 print-stp.c(17.18 KB)
📄 print-sunatm.c(3.27 KB)
📄 print-sunrpc.c(7.85 KB)
📄 print-symantec.c(3.78 KB)
📄 print-syslog.c(3.96 KB)
📄 print-tcp.c(35.84 KB)
📄 print-telnet.c(15.02 KB)
📄 print-tftp.c(5.2 KB)
📄 print-timed.c(4.74 KB)
📄 print-tipc.c(11.53 KB)
📄 print-token.c(7.96 KB)
📄 print-udld.c(5.47 KB)
📄 print-udp.c(21.28 KB)
📄 print-usb.c(4.18 KB)
📄 print-vjc.c(4.45 KB)
📄 print-vqp.c(6.8 KB)
📄 print-vrrp.c(6.37 KB)
📄 print-vtp.c(13.56 KB)
📄 print-vxlan-gpe.c(3.46 KB)
📄 print-vxlan.c(2.21 KB)
📄 print-wb.c(10.93 KB)
📄 print-zephyr.c(8.03 KB)
📄 print-zeromq.c(7.5 KB)
📄 print.c(11.54 KB)
📄 print.h(1.78 KB)
📄 rpc_auth.h(2.77 KB)
📄 rpc_msg.h(3.19 KB)
📄 rpl.h(4.88 KB)
📄 send-ack.awk(1.56 KB)
📄 setsignal.c(3.27 KB)
📄 setsignal.h(1.24 KB)
📄 signature.c(5.58 KB)
📄 signature.h(1.12 KB)
📄 slcompress.h(3.55 KB)
📄 smb.h(5.38 KB)
📄 smbutil.c(63.88 KB)
📄 stime.awk(567 B)
📄 strtoaddr.c(5.34 KB)
📄 strtoaddr.h(992 B)
📄 tcp.h(5.02 KB)
📄 tcpdump.1.in(60.82 KB)
📄 tcpdump.c(69.76 KB)
📄 timeval-operations.h(3.19 KB)
📄 udp.h(8.25 KB)
📄 util-print.c(23.75 KB)
📄 vfprintf.c(1.62 KB)

Editing: print-sl.c

/*
 * Copyright (c) 1989, 1990, 1991, 1993, 1994, 1995, 1996, 1997
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the University of California,
 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
 * the University nor the names of its contributors may be used to endorse
 * or promote products derived from this software without specific prior
 * written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

/* \summary: Compressed Serial Line Internet Protocol printer */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <netdissect-stdinc.h>

#include "netdissect.h"
#include "extract.h"

#include "ip.h"
#include "tcp.h"
#include "slcompress.h"

/*
 * definitions of the pseudo- link-level header attached to slip
 * packets grabbed by the packet filter (bpf) traffic monitor.
 */
#define SLIP_HDRLEN 16

#define SLX_DIR 0
#define SLX_CHDR 1
#define CHDR_LEN 15

#define SLIPDIR_IN 0
#define SLIPDIR_OUT 1

static const char tstr[] = "[|slip]";

static u_int lastlen[2][256];
static u_int lastconn = 255;

static int sliplink_print(netdissect_options *, const u_char *, const struct ip *, u_int);
static int compressed_sl_print(netdissect_options *, const u_char *, const struct ip *, u_int, int);

u_int
sl_if_print(netdissect_options *ndo,
            const struct pcap_pkthdr *h, const u_char *p)
{
	register u_int caplen = h->caplen;
	register u_int length = h->len;
	register const struct ip *ip;

if (caplen < SLIP_HDRLEN || length < SLIP_HDRLEN) {
		ND_PRINT((ndo, "%s", tstr));
		return (caplen);
	}

caplen -= SLIP_HDRLEN;
	length -= SLIP_HDRLEN;

ip = (const struct ip *)(p + SLIP_HDRLEN);

if (ndo->ndo_eflag)
		if (sliplink_print(ndo, p, ip, length) == -1) {
			ND_PRINT((ndo, "%s", tstr));
			return (caplen + SLIP_HDRLEN);
	}

if (caplen < 1 || length < 1) {
		ND_PRINT((ndo, "%s", tstr));
		return (caplen + SLIP_HDRLEN);
	}

switch (IP_V(ip)) {
	case 4:
	        ip_print(ndo, (const u_char *)ip, length);
		break;
	case 6:
		ip6_print(ndo, (const u_char *)ip, length);
		break;
	default:
		ND_PRINT((ndo, "ip v%d", IP_V(ip)));
	}

return (SLIP_HDRLEN);
}

u_int
sl_bsdos_if_print(netdissect_options *ndo,
                  const struct pcap_pkthdr *h, const u_char *p)
{
	register u_int caplen = h->caplen;
	register u_int length = h->len;
	register const struct ip *ip;

if (caplen < SLIP_HDRLEN) {
		ND_PRINT((ndo, "%s", tstr));
		return (caplen);
	}

length -= SLIP_HDRLEN;

ip = (const struct ip *)(p + SLIP_HDRLEN);

#ifdef notdef
	if (ndo->ndo_eflag)
		sliplink_print(ndo, p, ip, length);
#endif

ip_print(ndo, (const u_char *)ip, length);

return (SLIP_HDRLEN);
}

static int
sliplink_print(netdissect_options *ndo,
               register const u_char *p, register const struct ip *ip,
               register u_int length)
{
	int dir;
	u_int hlen;

dir = p[SLX_DIR];
	switch (dir) {

case SLIPDIR_IN:
		ND_PRINT((ndo, "I "));
		break;

case SLIPDIR_OUT:
		ND_PRINT((ndo, "O "));
		break;

default:
		ND_PRINT((ndo, "Invalid direction %d ", dir));
		dir = -1;
		break;
	}
	if (ndo->ndo_nflag) {
		/* XXX just dump the header */
		register int i;

for (i = SLX_CHDR; i < SLX_CHDR + CHDR_LEN - 1; ++i)
			ND_PRINT((ndo, "%02x.", p[i]));
		ND_PRINT((ndo, "%02x: ", p[SLX_CHDR + CHDR_LEN - 1]));
		return 0;
	}
	switch (p[SLX_CHDR] & 0xf0) {

case TYPE_IP:
		ND_PRINT((ndo, "ip %d: ", length + SLIP_HDRLEN));
		break;

case TYPE_UNCOMPRESSED_TCP:
		/*
		 * The connection id is stored in the IP protocol field.
		 * Get it from the link layer since sl_uncompress_tcp()
		 * has restored the IP header copy to IPPROTO_TCP.
		 */
		lastconn = ((const struct ip *)&p[SLX_CHDR])->ip_p;
		ND_PRINT((ndo, "utcp %d: ", lastconn));
		if (dir == -1) {
			/* Direction is bogus, don't use it */
			return 0;
		}
		ND_TCHECK(*ip);
		hlen = IP_HL(ip);
		ND_TCHECK(*((const struct tcphdr *)&((const int *)ip)[hlen]));
		hlen += TH_OFF((const struct tcphdr *)&((const int *)ip)[hlen]);
		lastlen[dir][lastconn] = length - (hlen << 2);
		break;

default:
		if (dir == -1) {
			/* Direction is bogus, don't use it */
			return 0;
		}
		if (p[SLX_CHDR] & TYPE_COMPRESSED_TCP) {
			if (compressed_sl_print(ndo, &p[SLX_CHDR], ip,
						length, dir) == -1)
				goto trunc;
			ND_PRINT((ndo, ": "));
		} else
			ND_PRINT((ndo, "slip-%d!: ", p[SLX_CHDR]));
	}
	return 0;
trunc:
	return -1;
}

static const u_char *
print_sl_change(netdissect_options *ndo,
                const char *str, register const u_char *cp)
{
	register u_int i;

if ((i = *cp++) == 0) {
		i = EXTRACT_16BITS(cp);
		cp += 2;
	}
	ND_PRINT((ndo, " %s%d", str, i));
	return (cp);
}

static const u_char *
print_sl_winchange(netdissect_options *ndo,
                   register const u_char *cp)
{
	register short i;

if ((i = *cp++) == 0) {
		i = EXTRACT_16BITS(cp);
		cp += 2;
	}
	if (i >= 0)
		ND_PRINT((ndo, " W+%d", i));
	else
		ND_PRINT((ndo, " W%d", i));
	return (cp);
}

static int
compressed_sl_print(netdissect_options *ndo,
                    const u_char *chdr, const struct ip *ip,
                    u_int length, int dir)
{
	register const u_char *cp = chdr;
	register u_int flags, hlen;

flags = *cp++;
	if (flags & NEW_C) {
		lastconn = *cp++;
		ND_PRINT((ndo, "ctcp %d", lastconn));
	} else
		ND_PRINT((ndo, "ctcp *"));

/* skip tcp checksum */
	cp += 2;

switch (flags & SPECIALS_MASK) {
	case SPECIAL_I:
		ND_PRINT((ndo, " *SA+%d", lastlen[dir][lastconn]));
		break;

case SPECIAL_D:
		ND_PRINT((ndo, " *S+%d", lastlen[dir][lastconn]));
		break;

default:
		if (flags & NEW_U)
			cp = print_sl_change(ndo, "U=", cp);
		if (flags & NEW_W)
			cp = print_sl_winchange(ndo, cp);
		if (flags & NEW_A)
			cp = print_sl_change(ndo, "A+", cp);
		if (flags & NEW_S)
			cp = print_sl_change(ndo, "S+", cp);
		break;
	}
	if (flags & NEW_I)
		cp = print_sl_change(ndo, "I+", cp);

/*
	 * 'hlen' is the length of the uncompressed TCP/IP header (in words).
	 * 'cp - chdr' is the length of the compressed header.
	 * 'length - hlen' is the amount of data in the packet.
	 */
	ND_TCHECK(*ip);
	hlen = IP_HL(ip);
	ND_TCHECK(*((const struct tcphdr *)&((const int32_t *)ip)[hlen]));
	hlen += TH_OFF((const struct tcphdr *)&((const int32_t *)ip)[hlen]);
	lastlen[dir][lastconn] = length - (hlen << 2);
	ND_PRINT((ndo, " %d (%ld)", lastlen[dir][lastconn], (long)(cp - chdr)));
	return 0;
trunc:
	return -1;
}

003 File Manager

Editing: print-sl.c

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