Virgin import of unmodified tcpdump v3.2.1 distribution from LBL.vendor/tcpdump/3.2.1

Obtained from: ftp://ftp.ee.lbl.gov/tcpdump.tar.Z on 19-Aug-1996.

1 files changed, 571 insertions, 0 deletions

diff --git a/contrib/tcpdump/print-atalk.c b/contrib/tcpdump/print-atalk.c
new file mode 100644
index 000000000000..e2ae8252889d
--- /dev/null
+++ b/contrib/tcpdump/print-atalk.c
@@ -0,0 +1,571 @@
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
+ *	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.
+ *
+ * Format and print AppleTalk packets.
+ */
+#ifndef lint
+static  char rcsid[] =
+	"@(#)$Header: print-atalk.c,v 1.43 96/07/23 14:16:55 leres Exp $ (LBL)";
+#endif
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+
+#if __STDC__
+struct mbuf;
+struct rtentry;
+#endif
+#include <net/if.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_var.h>
+#include <netinet/if_ether.h>
+#include <netinet/udp.h>
+#include <netinet/udp_var.h>
+#include <netinet/tcp.h>
+#include <netinet/tcpip.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "ethertype.h"
+#include "extract.h"			/* must come after interface.h */
+#include "appletalk.h"
+
+static struct tok type2str[] = {
+	{ ddpRTMP,		"rtmp" },
+	{ ddpRTMPrequest,	"rtmpReq" },
+	{ ddpECHO,		"echo" },
+	{ ddpIP,		"IP" },
+	{ ddpARP,		"ARP" },
+	{ ddpKLAP,		"KLAP" },
+	{ 0,			NULL }
+};
+
+struct aarp {
+	u_short htype, ptype;
+	u_char	halen, palen;
+	u_short op;
+	u_char	hsaddr[6];
+	u_char	psaddr[4];
+	u_char	hdaddr[6];
+	u_char	pdaddr[4];
+};
+
+static char tstr[] = "[|atalk]";
+
+static void atp_print(const struct atATP *, u_int);
+static void atp_bitmap_print(u_char);
+static void nbp_print(const struct atNBP *, u_int, u_short, u_char, u_char);
+static const char *print_cstring(const char *, const u_char *);
+static const struct atNBPtuple *nbp_tuple_print(const struct atNBPtuple *,
+						const u_char *,
+						u_short, u_char, u_char);
+static const struct atNBPtuple *nbp_name_print(const struct atNBPtuple *,
+					       const u_char *);
+static const char *ataddr_string(u_short, u_char);
+static void ddp_print(const u_char *, u_int, int, u_short, u_char, u_char);
+static const char *ddpskt_string(int);
+
+/*
+ * Print AppleTalk Datagram Delivery Protocol packets.
+ */
+void
+atalk_print(register const u_char *bp, u_int length)
+{
+	register const struct LAP *lp;
+	register const struct atDDP *dp;
+	register const struct atShortDDP *sdp;
+	u_short snet;
+
+	lp = (struct LAP *)bp;
+	bp += sizeof(*lp);
+	length -= sizeof(*lp);
+	switch (lp->type) {
+
+	case lapShortDDP:
+		if (length < ddpSSize) {
+			(void)printf(" [|sddp %d]", length);
+			return;
+		}
+		sdp = (const struct atShortDDP *)bp;
+		printf("%s.%s",
+		    ataddr_string(0, lp->src), ddpskt_string(sdp->srcSkt));
+		printf(" > %s.%s:",
+		    ataddr_string(0, lp->dst), ddpskt_string(sdp->dstSkt));
+		bp += ddpSSize;
+		length -= ddpSSize;
+		ddp_print(bp, length, sdp->type, 0, lp->src, sdp->srcSkt);
+		break;
+
+	case lapDDP:
+		if (length < ddpSize) {
+			(void)printf(" [|ddp %d]", length);
+			return;
+		}
+		dp = (const struct atDDP *)bp;
+		snet = EXTRACT_16BITS(&dp->srcNet);
+		printf("%s.%s", ataddr_string(snet, dp->srcNode),
+		    ddpskt_string(dp->srcSkt));
+		printf(" > %s.%s:",
+		    ataddr_string(EXTRACT_16BITS(&dp->dstNet), dp->dstNode),
+		    ddpskt_string(dp->dstSkt));
+		bp += ddpSize;
+		length -= ddpSize;
+		ddp_print(bp, length, dp->type, snet, dp->srcNode, dp->srcSkt);
+		break;
+
+#ifdef notdef
+	case lapKLAP:
+		klap_print(bp, length);
+		break;
+#endif
+
+	default:
+		printf("%d > %d at-lap#%d %d",
+		    lp->src, lp->dst, lp->type, length);
+		break;
+	}
+}
+
+/* XXX should probably pass in the snap header and do checks like arp_print() */
+void
+aarp_print(register const u_char *bp, u_int length)
+{
+	register const struct aarp *ap;
+
+#define AT(member) ataddr_string((ap->member[1]<<8)|ap->member[2],ap->member[3])
+
+	printf("aarp ");
+	ap = (const struct aarp *)bp;
+	if (ap->htype == 1 && ap->ptype == ETHERTYPE_ATALK &&
+	    ap->halen == 6 && ap->palen == 4 )
+		switch (ap->op) {
+
+		case 1:				/* request */
+			(void)printf("who-has %s tell %s",
+			    AT(pdaddr), AT(psaddr));
+			return;
+
+		case 2:				/* response */
+			(void)printf("reply %s is-at %s",
+			    AT(pdaddr), etheraddr_string(ap->hdaddr));
+			return;
+
+		case 3:				/* probe (oy!) */
+			(void)printf("probe %s tell %s",
+			    AT(pdaddr), AT(psaddr));
+			return;
+		}
+	(void)printf("len %d op %d htype %d ptype %#x halen %d palen %d",
+	    length, ap->op, ap->htype, ap->ptype, ap->halen, ap->palen );
+}
+
+static void
+ddp_print(register const u_char *bp, register u_int length, register int t,
+	  register u_short snet, register u_char snode, u_char skt)
+{
+
+	switch (t) {
+
+	case ddpNBP:
+		nbp_print((const struct atNBP *)bp, length, snet, snode, skt);
+		break;
+
+	case ddpATP:
+		atp_print((const struct atATP *)bp, length);
+		break;
+
+	default:
+		(void)printf(" at-%s %d", tok2str(type2str, NULL, t), length);
+		break;
+	}
+}
+
+static void
+atp_print(register const struct atATP *ap, u_int length)
+{
+	char c;
+	u_int32_t data;
+
+	if ((const u_char *)(ap + 1) > snapend) {
+		/* Just bail if we don't have the whole chunk. */
+		fputs(tstr, stdout);
+		return;
+	}
+	length -= sizeof(*ap);
+	switch (ap->control & 0xc0) {
+
+	case atpReqCode:
+		(void)printf(" atp-req%s %d",
+			     ap->control & atpXO? " " : "*",
+			     EXTRACT_16BITS(&ap->transID));
+
+		atp_bitmap_print(ap->bitmap);
+
+		if (length != 0)
+			(void)printf(" [len=%d]", length);
+
+		switch (ap->control & (atpEOM|atpSTS)) {
+		case atpEOM:
+			(void)printf(" [EOM]");
+			break;
+		case atpSTS:
+			(void)printf(" [STS]");
+			break;
+		case atpEOM|atpSTS:
+			(void)printf(" [EOM,STS]");
+			break;
+		}
+		break;
+
+	case atpRspCode:
+		(void)printf(" atp-resp%s%d:%d (%d)",
+			     ap->control & atpEOM? "*" : " ",
+			     EXTRACT_16BITS(&ap->transID), ap->bitmap, length);
+		switch (ap->control & (atpXO|atpSTS)) {
+		case atpXO:
+			(void)printf(" [XO]");
+			break;
+		case atpSTS:
+			(void)printf(" [STS]");
+			break;
+		case atpXO|atpSTS:
+			(void)printf(" [XO,STS]");
+			break;
+		}
+		break;
+
+	case atpRelCode:
+		(void)printf(" atp-rel  %d", EXTRACT_16BITS(&ap->transID));
+
+		atp_bitmap_print(ap->bitmap);
+
+		/* length should be zero */
+		if (length)
+			(void)printf(" [len=%d]", length);
+
+		/* there shouldn't be any control flags */
+		if (ap->control & (atpXO|atpEOM|atpSTS)) {
+			c = '[';
+			if (ap->control & atpXO) {
+				(void)printf("%cXO", c);
+				c = ',';
+			}
+			if (ap->control & atpEOM) {
+				(void)printf("%cEOM", c);
+				c = ',';
+			}
+			if (ap->control & atpSTS) {
+				(void)printf("%cSTS", c);
+				c = ',';
+			}
+			(void)printf("]");
+		}
+		break;
+
+	default:
+		(void)printf(" atp-0x%x  %d (%d)", ap->control,
+			     EXTRACT_16BITS(&ap->transID), length);
+		break;
+	}
+	data = EXTRACT_32BITS(&ap->userData);
+	if (data != 0)
+		(void)printf(" 0x%x", data);
+}
+
+static void
+atp_bitmap_print(register u_char bm)
+{
+	register char c;
+	register int i;
+
+	/*
+	 * The '& 0xff' below is needed for compilers that want to sign
+	 * extend a u_char, which is the case with the Ultrix compiler.
+	 * (gcc is smart enough to eliminate it, at least on the Sparc).
+	 */
+	if ((bm + 1) & (bm & 0xff)) {
+		c = '<';
+		for (i = 0; bm; ++i) {
+			if (bm & 1) {
+				(void)printf("%c%d", c, i);
+				c = ',';
+			}
+			bm >>= 1;
+		}
+		(void)printf(">");
+	} else {
+		for (i = 0; bm; ++i)
+			bm >>= 1;
+		if (i > 1)
+			(void)printf("<0-%d>", i - 1);
+		else
+			(void)printf("<0>");
+	}
+}
+
+static void
+nbp_print(register const struct atNBP *np, u_int length, register u_short snet,
+	  register u_char snode, register u_char skt)
+{
+	register const struct atNBPtuple *tp =
+			(struct atNBPtuple *)((u_char *)np + nbpHeaderSize);
+	int i;
+	const u_char *ep;
+
+	length -= nbpHeaderSize;
+	if (length < 8) {
+		/* must be room for at least one tuple */
+		(void)printf(" truncated-nbp %d", length + nbpHeaderSize);
+		return;
+	}
+	/* ep points to end of available data */
+	ep = snapend;
+	if ((const u_char *)tp > ep) {
+		fputs(tstr, stdout);
+		return;
+	}
+	switch (i = np->control & 0xf0) {
+
+	case nbpBrRq:
+	case nbpLkUp:
+		(void)printf(i == nbpLkUp? " nbp-lkup %d:":" nbp-brRq %d:",
+			     np->id);
+		if ((const u_char *)(tp + 1) > ep) {
+			fputs(tstr, stdout);
+			return;
+		}
+		(void)nbp_name_print(tp, ep);
+		/*
+		 * look for anomalies: the spec says there can only
+		 * be one tuple, the address must match the source
+		 * address and the enumerator should be zero.
+		 */
+		if ((np->control & 0xf) != 1)
+			(void)printf(" [ntup=%d]", np->control & 0xf);
+		if (tp->enumerator)
+			(void)printf(" [enum=%d]", tp->enumerator);
+		if (EXTRACT_16BITS(&tp->net) != snet ||
+		    tp->node != snode || tp->skt != skt)
+			(void)printf(" [addr=%s.%d]",
+			    ataddr_string(EXTRACT_16BITS(&tp->net),
+			    tp->node), tp->skt);
+		break;
+
+	case nbpLkUpReply:
+		(void)printf(" nbp-reply %d:", np->id);
+
+		/* print each of the tuples in the reply */
+		for (i = np->control & 0xf; --i >= 0 && tp; )
+			tp = nbp_tuple_print(tp, ep, snet, snode, skt);
+		break;
+
+	default:
+		(void)printf(" nbp-0x%x  %d (%d)", np->control, np->id,
+				length);
+		break;
+	}
+}
+
+/* print a counted string */
+static const char *
+print_cstring(register const char *cp, register const u_char *ep)
+{
+	register u_int length;
+
+	if (cp >= (const char *)ep) {
+		fputs(tstr, stdout);
+		return (0);
+	}
+	length = *cp++;
+
+	/* Spec says string can be at most 32 bytes long */
+	if (length < 0 || length > 32) {
+		(void)printf("[len=%d]", length);
+		return (0);
+	}
+	while (--length >= 0) {
+		if (cp >= (char *)ep) {
+			fputs(tstr, stdout);
+			return (0);
+		}
+		putchar(*cp++);
+	}
+	return (cp);
+}
+
+static const struct atNBPtuple *
+nbp_tuple_print(register const struct atNBPtuple *tp,
+		register const u_char *ep,
+		register u_short snet, register u_char snode,
+		register u_char skt)
+{
+	register const struct atNBPtuple *tpn;
+
+	if ((const u_char *)(tp + 1) > ep) {
+		fputs(tstr, stdout);
+		return 0;
+	}
+	tpn = nbp_name_print(tp, ep);
+
+	/* if the enumerator isn't 1, print it */
+	if (tp->enumerator != 1)
+		(void)printf("(%d)", tp->enumerator);
+
+	/* if the socket doesn't match the src socket, print it */
+	if (tp->skt != skt)
+		(void)printf(" %d", tp->skt);
+
+	/* if the address doesn't match the src address, it's an anomaly */
+	if (EXTRACT_16BITS(&tp->net) != snet || tp->node != snode)
+		(void)printf(" [addr=%s]",
+		    ataddr_string(EXTRACT_16BITS(&tp->net), tp->node));
+
+	return (tpn);
+}
+
+static const struct atNBPtuple *
+nbp_name_print(const struct atNBPtuple *tp, register const u_char *ep)
+{
+	register const char *cp = (const char *)tp + nbpTupleSize;
+
+	putchar(' ');
+
+	/* Object */
+	putchar('"');
+	if ((cp = print_cstring(cp, ep)) != NULL) {
+		/* Type */
+		putchar(':');
+		if ((cp = print_cstring(cp, ep)) != NULL) {
+			/* Zone */
+			putchar('@');
+			if ((cp = print_cstring(cp, ep)) != NULL)
+				putchar('"');
+		}
+	}
+	return ((const struct atNBPtuple *)cp);
+}
+
+
+#define HASHNAMESIZE 4096
+
+struct hnamemem {
+	int addr;
+	char *name;
+	struct hnamemem *nxt;
+};
+
+static struct hnamemem hnametable[HASHNAMESIZE];
+
+static const char *
+ataddr_string(u_short atnet, u_char athost)
+{
+	register struct hnamemem *tp, *tp2;
+	register int i = (atnet << 8) | athost;
+	char nambuf[256];
+	static int first = 1;
+	FILE *fp;
+
+	/*
+	 * if this is the first call, see if there's an AppleTalk
+	 * number to name map file.
+	 */
+	if (first && (first = 0, !nflag)
+	    && (fp = fopen("/etc/atalk.names", "r"))) {
+		char line[256];
+		int i1, i2, i3;
+
+		while (fgets(line, sizeof(line), fp)) {
+			if (line[0] == '\n' || line[0] == 0 || line[0] == '#')
+				continue;
+			if (sscanf(line, "%d.%d.%d %s", &i1, &i2, &i3,
+				     nambuf) == 4)
+				/* got a hostname. */
+				i3 |= ((i1 << 8) | i2) << 8;
+			else if (sscanf(line, "%d.%d %s", &i1, &i2,
+					nambuf) == 3)
+				/* got a net name */
+				i3 = (((i1 << 8) | i2) << 8) | 255;
+			else
+				continue;
+
+			for (tp = &hnametable[i3 & (HASHNAMESIZE-1)];
+			     tp->nxt; tp = tp->nxt)
+				;
+			tp->addr = i3;
+			tp->nxt = newhnamemem();
+			tp->name = savestr(nambuf);
+		}
+		fclose(fp);
+	}
+
+	for (tp = &hnametable[i & (HASHNAMESIZE-1)]; tp->nxt; tp = tp->nxt)
+		if (tp->addr == i)
+			return (tp->name);
+
+	/* didn't have the node name -- see if we've got the net name */
+	i |= 255;
+	for (tp2 = &hnametable[i & (HASHNAMESIZE-1)]; tp2->nxt; tp2 = tp2->nxt)
+		if (tp2->addr == i) {
+			tp->addr = (atnet << 8) | athost;
+			tp->nxt = newhnamemem();
+			(void)sprintf(nambuf, "%s.%d", tp2->name, athost);
+			tp->name = savestr(nambuf);
+			return (tp->name);
+		}
+
+	tp->addr = (atnet << 8) | athost;
+	tp->nxt = newhnamemem();
+	if (athost != 255)
+		(void)sprintf(nambuf, "%d.%d.%d",
+		    atnet >> 8, atnet & 0xff, athost);
+	else
+		(void)sprintf(nambuf, "%d.%d", atnet >> 8, atnet & 0xff);
+	tp->name = savestr(nambuf);
+
+	return (tp->name);
+}
+
+static struct tok skt2str[] = {
+	{ rtmpSkt,	"rtmp" },	/* routing table maintenance */
+	{ nbpSkt,	"nis" },	/* name info socket */
+	{ echoSkt,	"echo" },	/* AppleTalk echo protocol */
+	{ zipSkt,	"zip" },	/* zone info protocol */
+	{ 0,		NULL }
+};
+
+static const char *
+ddpskt_string(register int skt)
+{
+	static char buf[8];
+
+	if (nflag) {
+		(void)sprintf(buf, "%d", skt);
+		return (buf);
+	}
+	return (tok2str(skt2str, "%d", skt));
+}