ISC dhcp, needs security audit for sure

1 files changed, 184 insertions, 0 deletions

diff --git a/usr.sbin/dhcp/common/print.c b/usr.sbin/dhcp/common/print.c
new file mode 100644
index 00000000000..7ff64ffdd46
--- /dev/null
+++ b/usr.sbin/dhcp/common/print.c
@@ -0,0 +1,184 @@
+/* print.c
+
+   Turn data structures into printable text. */
+
+/*
+ * Copyright (c) 1995, 1996 The Internet Software Consortium.
+ * 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 Internet Software Consortium 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 INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
+ *
+ * This software has been written for the Internet Software Consortium
+ * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
+ * Enterprises.  To learn more about the Internet Software Consortium,
+ * see ``http://www.vix.com/isc''.  To learn more about Vixie
+ * Enterprises, see ``http://www.vix.com''.
+ */
+
+#ifndef lint
+static char copyright[] =
+"$Id: print.c,v 1.1 1998/08/18 03:43:27 deraadt Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium.  All rights reserved.\n";
+#endif /* not lint */
+
+#include "dhcpd.h"
+
+char *print_hw_addr (htype, hlen, data)
+	int htype;
+	int hlen;
+	unsigned char *data;
+{
+	static char habuf [49];
+	char *s;
+	int i;
+
+	if (htype == 0 || hlen == 0) {
+		strcpy (habuf, "<null>");
+	} else {
+		s = habuf;
+		for (i = 0; i < hlen; i++) {
+			sprintf (s, "%02x", data [i]);
+			s += strlen (s);
+			*s++ = ':';
+		}
+		*--s = 0;
+	}
+	return habuf;
+}
+
+void print_lease (lease)
+	struct lease *lease;
+{
+	struct tm *t;
+	char tbuf [32];
+
+	debug ("  Lease %s",
+	       piaddr (lease -> ip_addr));
+	
+	t = gmtime (&lease -> starts);
+	strftime (tbuf, sizeof tbuf, "%D %H:%M:%S", t);
+	debug ("  start %s", tbuf);
+	
+	t = gmtime (&lease -> ends);
+	strftime (tbuf, sizeof tbuf, "%D %H:%M:%S", t);
+	debug ("  end %s", tbuf);
+	
+	t = gmtime (&lease -> timestamp);
+	strftime (tbuf, sizeof tbuf, "%D %H:%M:%S", t);
+	debug ("  stamp %s", tbuf);
+	
+	debug ("    hardware addr = %s",
+	       print_hw_addr (lease -> hardware_addr.htype,
+			       lease -> hardware_addr.hlen,
+			       lease -> hardware_addr.haddr));
+	debug ("  host %s  ",
+	       lease -> host ? lease -> host -> name : "<none>");
+}	
+
+void dump_packet (tp)
+	struct packet *tp;
+{
+	struct dhcp_packet *tdp = tp -> raw;
+
+	debug ("packet length %d", tp -> packet_length);
+	debug ("op = %d  htype = %d  hlen = %d  hops = %d",
+	       tdp -> op, tdp -> htype, tdp -> hlen, tdp -> hops);
+	debug ("xid = %x  secs = %d  flags = %x",
+	       tdp -> xid, tdp -> secs, tdp -> flags);
+	debug ("ciaddr = %s", inet_ntoa (tdp -> ciaddr));
+	debug ("yiaddr = %s", inet_ntoa (tdp -> yiaddr));
+	debug ("siaddr = %s", inet_ntoa (tdp -> siaddr));
+	debug ("giaddr = %s", inet_ntoa (tdp -> giaddr));
+	debug ("chaddr = %02.2x:%02.2x:%02.2x:%02.2x:%02.2x:%02.2x",
+	       ((unsigned char *)(tdp -> chaddr)) [0],
+	       ((unsigned char *)(tdp -> chaddr)) [1],
+	       ((unsigned char *)(tdp -> chaddr)) [2],
+	       ((unsigned char *)(tdp -> chaddr)) [3],
+	       ((unsigned char *)(tdp -> chaddr)) [4],
+	       ((unsigned char *)(tdp -> chaddr)) [5]);
+	debug ("filename = %s", tdp -> file);
+	debug ("server_name = %s", tdp -> sname);
+	if (tp -> options_valid) {
+		int i;
+
+		for (i = 0; i < 256; i++) {
+			if (tp -> options [i].data)
+				debug ("  %s = %s",
+					dhcp_options [i].name,
+					pretty_print_option
+					(i, tp -> options [i].data,
+					 tp -> options [i].len, 1, 1));
+		}
+	}
+	debug ("");
+}
+
+void dump_raw (buf, len)
+	unsigned char *buf;
+	int len;
+{
+	int i;
+	char lbuf [80];
+	int lbix = 0;
+
+	lbuf [0] = 0;
+
+	for (i = 0; i < len; i++) {
+		if ((i & 15) == 0) {
+			if (lbix)
+				note (lbuf);
+			sprintf (lbuf, "%03x:", i);
+			lbix = 4;
+		} else if ((i & 7) == 0)
+			lbuf [lbix++] = ' ';
+		sprintf (&lbuf [lbix], " %02x", buf [i]);
+		lbix += 3;
+	}
+	note (lbuf);
+}
+
+void hash_dump (table)
+	struct hash_table *table;
+{
+	int i;
+	struct hash_bucket *bp;
+
+	if (!table)
+		return;
+
+	for (i = 0; i < table -> hash_count; i++) {
+		if (!table -> buckets [i])
+			continue;
+		note ("hash bucket %d:", i);
+		for (bp = table -> buckets [i]; bp; bp = bp -> next) {
+			if (bp -> len)
+				dump_raw (bp -> name, bp -> len);
+			else
+				note (bp -> name);
+		}
+	}
+}