Virgin import of tcpdump.org tcpdump v3.5

1 files changed, 342 insertions, 0 deletions

diff --git a/contrib/tcpdump/print-dhcp6.c b/contrib/tcpdump/print-dhcp6.c
new file mode 100644
index 0000000..411f166
--- /dev/null
+++ b/contrib/tcpdump/print-dhcp6.c
@@ -0,0 +1,342 @@
+/*
+ * Copyright (C) 1998 and 1999 WIDE Project.
+ * 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. Neither the name of the project 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 BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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[] =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-dhcp6.c,v 1.3 1999/12/22 06:27:20 itojun Exp $";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#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 <ctype.h>
+#ifdef HAVE_MEMORY_H
+#include <memory.h>
+#endif
+#include <stdio.h>
+#include <string.h>
+#include <arpa/inet.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "dhcp6.h"
+#include "dhcp6opt.h"
+
+#if 0
+static void dhcp6opttab_init __P((void));
+static struct dhcp6_opt *dhcp6opttab_byname __P((char *));
+#endif
+static struct dhcp6_opt *dhcp6opttab_bycode __P((u_int));
+
+static char tstr[] = " [|dhcp6]";
+
+static struct dhcp6_opt dh6opttab[] = {
+	/* IP Address Extension */
+	{ 1, OL6_N,	"IP Address",			OT6_NONE, },
+
+	/* General Extension */
+	{ 2, 4,		"Time Offset",			OT6_NUM, },
+	{ 3, OL6_N,	"IEEE 1003.1 POSIX Timezone",	OT6_STR, },
+	{ 6, OL6_16N,	"Domain Name Server",		OT6_V6, },
+	{ 10, OL6_N,	"Domain Name",			OT6_STR, },
+
+	/* Application and Service Parameters */
+	{ 16, OL6_N,	"Directory Agent",		OT6_NONE, },
+	{ 17, OL6_N,	"Service Scope"	,		OT6_NONE, },
+	{ 18, OL6_16N,	"Network Time Protocol Servers", OT6_V6, },
+	{ 19, OL6_N,	"NIS Domain",			OT6_STR, },
+	{ 20, OL6_16N,	"NIS Servers",			OT6_V6, },
+	{ 21, OL6_N,	"NIS+ Domain",			OT6_STR, },
+	{ 22, OL6_16N,	"NIS+ Servers",			OT6_V6, },
+
+	/* TCP Parameters */
+	{ 32, 4,	"TCP Keepalive Interval",	OT6_NUM, },
+
+	/* DHCPv6 Extensions */
+	{ 40, 4,	"Maximum DHCPv6 Message Size",	OT6_NUM, },
+	{ 41, OL6_N,	"DHCP Retransmission and Configuration Parameter",
+							OT6_NONE, },
+	{ 48, OL6_N,	"Platform Specific Information", OT6_NONE, },
+	{ 49, OL6_N,	"Platform Class Identifier",	OT6_STR, },
+	{ 64, OL6_N,	"Class Identifier",		OT6_STR, },
+	{ 66, 16,	"Reconfigure Multicast Address", OT6_V6, },
+	{ 67, 16,	"Renumber DHCPv6 Server Address",
+							OT6_V6, },
+	{ 68, OL6_N,	"DHCP Relay ICMP Error Message", OT6_NONE, },
+	{ 84, OL6_N,	"Client-Server Authentication",	OT6_NONE, },
+	{ 85, 4,	"Client Key Selection",		OT6_NUM, },
+
+	/* End Extension */
+	{ 65536, OL6_Z,	"End",				OT6_NONE, },
+
+	{ 0 },
+};
+
+#if 0
+static struct dhcp6_opt *dh6o_pad;
+static struct dhcp6_opt *dh6o_end;
+
+static void
+dhcp6opttab_init()
+{
+	dh6o_pad = dhcp6opttab_bycode(0);
+	dh6o_end = dhcp6opttab_bycode(65536);
+}
+#endif
+
+#if 0
+static struct dhcp6_opt *
+dhcp6opttab_byname(name)
+	char *name;
+{
+	struct dhcp6_opt *p;
+
+	for (p = dh6opttab; p->code; p++)
+		if (strcmp(name, p->name) == 0)
+			return p;
+	return NULL;
+}
+#endif
+
+static struct dhcp6_opt *
+dhcp6opttab_bycode(code)
+	u_int code;
+{
+	struct dhcp6_opt *p;
+
+	for (p = dh6opttab; p->code; p++)
+		if (p->code == code)
+			return p;
+	return NULL;
+}
+
+static void
+dhcp6ext_print(u_char *cp, u_char *ep)
+{
+	u_int16_t code, len;
+	struct dhcp6_opt *p;
+	char buf[BUFSIZ];
+	int i;
+
+	if (cp == ep)
+		return;
+	printf(" ");
+	while (cp < ep) {
+		code = ntohs(*(u_int16_t *)&cp[0]);
+		if (code != 65535)
+			len = ntohs(*(u_int16_t *)&cp[2]);
+		else
+			len = 0;
+		p = dhcp6opttab_bycode(code);
+		if (p == NULL) {
+			printf("(unknown, len=%d)", len);
+			cp += len + 4;
+			continue;
+		}
+
+		/* sanity check on length */
+		switch (p->len) {
+		case OL6_N:
+			break;
+		case OL6_16N:
+			if (len % 16 != 0)
+				goto trunc;
+			break;
+		case OL6_Z:
+			if (len != 0)
+				goto trunc;
+			break;
+		default:
+			if (len != p->len)
+				goto trunc;
+			break;
+		}
+		if (cp + 4 + len > ep) {
+			printf("[|%s]", p->name);
+			return;
+		}
+
+		printf("(%s, ", p->name);
+		switch (p->type) {
+		case OT6_V6:
+			for (i = 0; i < len; i += 16) {
+				inet_ntop(AF_INET6, &cp[4 + i], buf,
+					sizeof(buf));
+				if (i != 0)
+					printf(",");
+				printf("%s", buf);
+			}
+			break;
+		case OT6_STR:
+			memset(&buf, 0, sizeof(buf));
+			strncpy(buf, &cp[4], len);
+			printf("%s", buf);
+			break;
+		case OT6_NUM:
+			printf("%d", (u_int32_t)ntohl(*(u_int32_t *)&cp[4]));
+			break;
+		default:
+			for (i = 0; i < len; i++)
+				printf("%02x", cp[4 + i] & 0xff);
+		}
+		printf(")");
+		cp += len + 4;
+	}
+	return;
+
+trunc:
+	printf("[|dhcp6ext]");
+}
+
+/*
+ * Print dhcp6 requests
+ */
+void
+dhcp6_print(register const u_char *cp, u_int length,
+	    u_short sport, u_short dport)
+{
+	union dhcp6 *dh6;
+	u_char *ep;
+	u_char *extp;
+
+	printf("dhcp6");
+
+	ep = (u_char *)snapend;
+
+	dh6 = (union dhcp6 *)cp;
+	TCHECK(dh6->dh6_msgtype);
+	switch (dh6->dh6_msgtype) {
+	case DH6_SOLICIT:
+		if (vflag && TTEST(dh6->dh6_sol.dh6sol_relayaddr)) {
+			printf(" solicit(");
+			if ((dh6->dh6_sol.dh6sol_flags & DH6SOL_CLOSE) != 0)
+				printf("C");
+			if (dh6->dh6_sol.dh6sol_flags != 0)
+				printf(" ");
+			printf("cliaddr=%s",
+				ip6addr_string(&dh6->dh6_sol.dh6sol_cliaddr));
+			printf(" relayaddr=%s", 
+				ip6addr_string(&dh6->dh6_sol.dh6sol_relayaddr));
+			printf(")");
+		} else
+			printf(" solicit");
+		break;
+	case DH6_ADVERT:
+		if (!(vflag && TTEST(dh6->dh6_adv.dh6adv_serveraddr))) {
+			printf(" advert");
+			break;
+		}
+		printf(" advert(");
+		if ((dh6->dh6_adv.dh6adv_flags & DH6ADV_SERVPRESENT) != 0)
+			printf("S");
+		if (dh6->dh6_adv.dh6adv_flags != 0)
+			printf(" ");
+		printf("pref=%u", dh6->dh6_adv.dh6adv_pref);
+		printf(" cliaddr=%s",
+			ip6addr_string(&dh6->dh6_adv.dh6adv_cliaddr));
+		printf(" relayaddr=%s", 
+			ip6addr_string(&dh6->dh6_adv.dh6adv_relayaddr));
+		printf(" servaddr=%s", 
+			ip6addr_string(&dh6->dh6_adv.dh6adv_serveraddr));
+		extp = (u_char *)((&dh6->dh6_adv) + 1);
+		dhcp6ext_print(extp, ep);
+		printf(")");
+		break;
+	case DH6_REQUEST:
+		if (!(vflag && TTEST(dh6->dh6_req.dh6req_relayaddr))) {
+			printf(" request");
+			break;
+		}
+		printf(" request(");
+		if ((dh6->dh6_req.dh6req_flags & DH6REQ_CLOSE) != 0)
+			printf("C");
+		if ((dh6->dh6_req.dh6req_flags & DH6REQ_SERVPRESENT) != 0)
+			printf("S");
+		if ((dh6->dh6_req.dh6req_flags & DH6REQ_REBOOT) != 0)
+			printf("R");
+		if (dh6->dh6_req.dh6req_flags != 0)
+			printf(" ");
+		printf("xid=0x%04x", dh6->dh6_req.dh6req_xid);
+		printf(" cliaddr=%s",
+			ip6addr_string(&dh6->dh6_req.dh6req_cliaddr));
+		printf(" relayaddr=%s", 
+			ip6addr_string(&dh6->dh6_req.dh6req_relayaddr));
+		extp = (char *)((&dh6->dh6_req) + 1);
+		if ((dh6->dh6_req.dh6req_flags & DH6REQ_SERVPRESENT) != 0) {
+			printf(" servaddr=%s", ip6addr_string(extp));
+			extp += 16;
+		}
+		dhcp6ext_print(extp, ep);
+		printf(")");
+		break;
+	case DH6_REPLY:
+		if (!(vflag && TTEST(dh6->dh6_rep.dh6rep_xid))) {
+			printf(" reply");
+			break;
+		}
+		printf(" reply(");
+		if ((dh6->dh6_rep.dh6rep_flagandstat & DH6REP_CLIPRESENT) != 0)
+			printf("C");
+		if (dh6->dh6_rep.dh6rep_flagandstat != 0)
+			printf(" ");
+		printf("stat=0x%02x",
+			dh6->dh6_rep.dh6rep_flagandstat & DH6REP_STATMASK);
+		extp = (u_char *)((&dh6->dh6_rep) + 1);
+		if ((dh6->dh6_rep.dh6rep_flagandstat & DH6REP_CLIPRESENT) != 0) {
+			printf(" cliaddr=%s", ip6addr_string(extp));
+			extp += 16;
+		}
+		dhcp6ext_print(extp, ep);
+		printf(")");
+		break;
+	case DH6_RELEASE:
+		printf(" release");
+		break;
+	case DH6_RECONFIG:
+		printf(" reconfig");
+		break;
+	}
+	return;
+
+trunc:
+	printf("%s", tstr);
+}