Apply by doing:
cd /usr/src
patch -p0 < 001_dhcpd.patch
And then rebuild and install file:
cd usr.sbin/dhcpd
make obj
make cleandir
make depend
make
make install
Index: usr.sbin/dhcpd/options.c
===================================================================
RCS file: /cvs/src/usr.sbin/dhcpd/options.c,v
retrieving revision 1.8
retrieving revision 1.8.4.1
diff -u -p -u -r1.8 -r1.8.4.1
--- usr.sbin/dhcpd/options.c 15 Dec 2006 14:09:13 -0000 1.8
+++ usr.sbin/dhcpd/options.c 10 Oct 2007 06:10:27 -0000 1.8.4.1
@@ -1,4 +1,4 @@
-/* $OpenBSD: options.c,v 1.8 2006/12/15 14:09:13 stevesk Exp $ */
+/* $OpenBSD: options.c,v 1.8.4.1 2007/10/10 06:10:27 ckuethe Exp $ */
/* DHCP options parsing and reassembly. */
@@ -224,9 +224,12 @@ cons_options(struct packet *inpacket, st
inpacket &&
inpacket->options[DHO_DHCP_MAX_MESSAGE_SIZE].data &&
(inpacket->options[DHO_DHCP_MAX_MESSAGE_SIZE].len >=
- sizeof(u_int16_t)))
+ sizeof(u_int16_t))) {
mms = getUShort(
inpacket->options[DHO_DHCP_MAX_MESSAGE_SIZE].data);
+ if (mms < 576)
+ mms = 576; /* mms must be >= minimum IP MTU */
+ }
if (mms)
main_buffer_size = mms - DHCP_FIXED_LEN;
