initial import of NetBSD tree

1 files changed, 259 insertions, 0 deletions

diff --git a/usr.sbin/tcpdump/print-udp.c b/usr.sbin/tcpdump/print-udp.c
new file mode 100644
index 00000000000..4758c9da601
--- /dev/null
+++ b/usr.sbin/tcpdump/print-udp.c
@@ -0,0 +1,259 @@
+/*	$NetBSD: print-udp.c,v 1.3 1995/03/06 19:11:36 mycroft Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994
+ *	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.
+ */
+
+#ifndef lint
+static char rcsid[] =
+    "@(#) Header: print-udp.c,v 1.37 94/06/10 17:01:42 mccanne Exp (LBL)";
+#endif
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_var.h>
+#include <netinet/udp.h>
+#include <netinet/udp_var.h>
+
+#undef NOERROR					/* Solaris sucks */
+#include <arpa/nameser.h>
+#include <arpa/tftp.h>
+
+#ifdef SOLARIS
+#include <tiuser.h>
+#endif
+#include <rpc/rpc.h>
+
+#include <errno.h>
+#include <stdio.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "appletalk.h"
+
+#include "nfsv2.h"
+#include "bootp.h"
+
+extern int packettype;
+
+static void
+vat_print(const void *hdr, int len, register const struct udphdr *up)
+{
+	/* vat/vt audio */
+	u_int ts = *(u_short *)hdr;
+	if ((ts & 0xf060) != 0) {
+		/* probably vt */
+		(void)printf(" udp/vt %d %d / %d",
+			     ntohs(up->uh_ulen) - sizeof(*up),
+			     ts & 0x3ff, ts >> 10);
+	} else {
+		/* probably vat */
+		u_int i0 = ((u_int *)hdr)[0];
+		u_int i1 = ((u_int *)hdr)[1];
+		printf(" udp/vat %d c%d %u%s",
+			ntohs(up->uh_ulen) - sizeof(*up) - 8,
+			i0 & 0xffff,
+			i1, i0 & 0x800000? "*" : "");
+		/* audio format */
+		if (i0 & 0x1f0000)
+			printf(" f%d", (i0 >> 16) & 0x1f);
+		if (i0 & 0x3f000000)
+			printf(" s%d", (i0 >> 24) & 0x3f);
+	}
+}
+
+static void
+rtp_print(const void *hdr, int len, register const struct udphdr *up)
+{
+	/* rtp v1 video */
+	u_int *ip = (u_int *)hdr;
+	u_int i0 = ((u_int *)hdr)[0];
+	u_int i1 = ((u_int *)hdr)[1];
+	u_int hasopt = i0 & 0x800000;
+	u_int contype = (i0 >> 16) & 0x3f;
+	printf(" udp/rtp %d c%d %s%s %d",
+		ntohs(up->uh_ulen) - sizeof(*up) - 8,
+		contype,
+		hasopt? "+" : "",
+		i0 & 0x400000? "*" : "",
+		i0 & 0xffff);
+	if (contype == 31) {
+		ip += 2;
+		len >>= 2;
+		len -= 2;
+		if (hasopt) {
+			u_int i2, optlen;
+			do {
+				i2 = ip[0];
+				optlen = (i2 >> 16) & 0xff;
+				if (optlen == 0 || optlen > len) {
+					printf(" !opt");
+					return;
+				}
+				ip += optlen;
+			} while ((int)i2 >= 0);
+		}
+		printf(" 0x%04x", ip[0] >> 16);
+	}
+	if (vflag)
+		printf(" %u", i1);
+}
+
+/* XXX probably should use getservbyname() and cache answers */
+#define TFTP_PORT 69		/*XXX*/
+#define SUNRPC_PORT 111		/*XXX*/
+#define SNMP_PORT 161		/*XXX*/
+#define NTP_PORT 123		/*XXX*/
+#define SNMPTRAP_PORT 162	/*XXX*/
+#define RIP_PORT 520		/*XXX*/
+
+void
+udp_print(register const u_char *bp, int length, register const u_char *bp2)
+{
+	register const struct udphdr *up;
+	register const struct ip *ip;
+	register const u_char *cp;
+	u_short sport, dport, ulen;
+
+	up = (struct udphdr *)bp;
+	ip = (struct ip *)bp2;
+	cp = (u_char *)(up + 1);
+	if (cp > snapend) {
+		printf("[|udp]");
+		return;
+	}
+	if (length < sizeof(struct udphdr)) {
+		(void)printf(" truncated-udp %d", length);
+		return;
+	}
+	length -= sizeof(struct udphdr);
+
+	sport = ntohs(up->uh_sport);
+	dport = ntohs(up->uh_dport);
+	ulen = ntohs(up->uh_ulen);
+	if (packettype) {
+		register struct rpc_msg *rp;
+		enum msg_type direction;
+
+		switch (packettype) {
+		case 1:
+			(void)printf("%s.%s > %s.%s:",
+				ipaddr_string(&ip->ip_src),
+				udpport_string(sport),
+				ipaddr_string(&ip->ip_dst),
+				udpport_string(dport));
+			vat_print((void *)(up + 1), length, up);
+			break;
+		case 2:
+			(void)printf("%s.%s > %s.%s:",
+				ipaddr_string(&ip->ip_src),
+				udpport_string(sport),
+				ipaddr_string(&ip->ip_dst),
+				udpport_string(dport));
+			wb_print((void *)(up + 1), length);
+			break;
+		case 3:
+			rp = (struct rpc_msg *)(up + 1);
+			direction = (enum msg_type)ntohl(rp->rm_direction);
+			if (direction == CALL)
+				sunrpcrequest_print((u_char *)rp, length,
+				    (u_char *)ip);
+			else
+				nfsreply_print((u_char *)rp, length,
+				    (u_char *)ip);			/*XXX*/
+			break;
+		case 4:
+			(void)printf("%s.%s > %s.%s:",
+				ipaddr_string(&ip->ip_src),
+				udpport_string(sport),
+				ipaddr_string(&ip->ip_dst),
+				udpport_string(dport));
+			rtp_print((void *)(up + 1), length, up);
+			break;
+		}
+		return;
+	}
+
+	if (! qflag) {
+		register struct rpc_msg *rp;
+		enum msg_type direction;
+
+		rp = (struct rpc_msg *)(up + 1);
+		direction = (enum msg_type)ntohl(rp->rm_direction);
+		if (dport == NFS_PORT && direction == CALL) {
+			nfsreq_print((u_char *)rp, length, (u_char *)ip);
+			return;
+		}
+		else if (sport == NFS_PORT && direction == REPLY) {
+			nfsreply_print((u_char *)rp, length, (u_char *)ip);
+			return;
+		}
+#ifdef notdef
+		else if (dport == SUNRPC_PORT && direction == CALL) {
+			sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
+			return;
+		}
+#endif
+		else if (((struct LAP *)cp)->type == lapDDP &&
+		    (atalk_port(sport) || atalk_port(dport))) {
+			if (vflag)
+				fputs("kip ", stdout);
+			atalk_print(cp, length);
+			return;
+		}
+	}
+	(void)printf("%s.%s > %s.%s:",
+		ipaddr_string(&ip->ip_src), udpport_string(sport),
+		ipaddr_string(&ip->ip_dst), udpport_string(dport));
+
+	if (!qflag) {
+#define ISPORT(p) (dport == (p) || sport == (p))
+		if (ISPORT(NAMESERVER_PORT))
+			ns_print((const u_char *)(up + 1), length);
+		else if (ISPORT(TFTP_PORT))
+			tftp_print((const u_char *)(up + 1), length);
+		else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS))
+			bootp_print((const u_char *)(up + 1), length,
+			    sport, dport);
+		else if (dport == RIP_PORT)
+			rip_print((const u_char *)(up + 1), length);
+		else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))
+			snmp_print((const u_char *)(up + 1), length);
+		else if (ISPORT(NTP_PORT))
+			ntp_print((const u_char *)(up + 1), length);
+		else if (dport == 3456)
+			vat_print((const void *)(up + 1), length, up);
+		/*
+		 * Kludge in test for whiteboard packets.
+		 */
+		else if (dport == 4567)
+			wb_print((const void *)(up + 1), length);
+		else
+			(void)printf(" udp %d", ulen - sizeof(*up));
+#undef ISPORT
+	} else
+		(void)printf(" udp %d", ulen - sizeof(*up));
+}