Commit Graph

21 Commits

Author SHA1 Message Date
Ed Maste
2fcc737008 Implement RFC3442, the Classless Static Route option.
The original DHCP specification includes a route option but it supports
only class-based routes.  RFC3442 adds support for specifying the netmask
width for each static route.  A variable length encoding is used to minimize
the size of this option.

PR:             bin/99534
Submitted by:   Andrey V. Elsukov <bu7cher@yandex.ru>
Reviewed by:    brooks
2007-02-09 17:50:26 +00:00
Brooks Davis
a0b5cadc42 Actually implement rev 1.12 for host names and NIS domain names. We
were removing the invalid option, but still rejecting the lease.

Reported by:	Yoshihiko Sarumaru <mistral at imasy dot or dot jp>
2007-01-29 15:55:13 +00:00
Brian Somers
3dd3357a13 Revert the addition of -p. It's flawed in that dhclient should not run
on an interface without carrier.  devd should be used instead to handle
link up/down events.

Put on the right path by:	brooks, sam
2006-08-21 16:31:31 +00:00
Brian Somers
43cb852dc0 Correct usage() 2006-08-17 17:27:42 +00:00
Brian Somers
9341e8dd88 Add a -p switch to dhclient. The switch tells dhclient to persist
despite the interface link status.

Add dhclient_flags_iface and background_dhclient_iface rc.conf options.
(where iface is a specific interface).  These can be used to give
interface specific flags to dhclient.

Reviewed by:	brooks@
2006-08-17 17:12:27 +00:00
Jung-uk Kim
473c2d129b Send client identifier unconditionally. My ancient D-Link router response
with NACK if I don't set it.  Setting 'option dhcp-client-identifier' is
alternative but it is inconvenient because I have to keep the list of
all MAC addresses.  As bin/94743 pointed out, it is always sent from
Windows clients and I found Mac OS X does the same.

OK'd by:	brooks
2006-07-03 22:05:38 +00:00
Warner Losh
649482853c Remove 'n' from the getopt string. There's no -n option that is
parsed, so it winds up at usage anyway.

Add 'b' to the usage summary.  Noticed by Ben Mesander.
2006-05-23 16:57:47 +00:00
Brooks Davis
fcab8addcf Be more like Windows and Linux and send our hostname in the host-name
option if none is given in the config file.  Also add #ifdefd out
support for sending a client ID based on our MAC address.

PR:		bin/94743, bin/76401
Submitted by:	Frank Behrens <frank at pinky dot sax dot de>
X-MFC after:	6.1-RELEASE
2006-05-07 23:31:10 +00:00
Brooks Davis
dfad96ea18 Allow users to add aliases to the interface.
PR:		bin/87465 (different solution used)
MFC after:	1 week
2006-01-10 04:53:20 +00:00
Brooks Davis
82dbbc4120 When we get a bogus hostname in an option, drop the option rather than
refusing the lease.  This allow obtaining leases on misadministered
networks that use host names with underscores in them.

MFC After: 3 days
2005-12-10 03:46:14 +00:00
Brooks Davis
40767e22ea When we supersed the subnet-mask, write the forced value to the lease
file.  This is what the ISC client does.

Submitted by:	Rostislav Krasny <rosti dot bsd at gmail dot com>
2005-09-02 17:35:35 +00:00
Brooks Davis
f954ec0bcf Introduce a new helper function check_search() derived for res_hnok to
check the domain-name parameter according to the rules for "search"
strings as documented in resolv.conf(5).  Specifically, the string must
be no more than 256 bytes long and contain no more than six valid domain
names separated by white space.

The previous unchecked values could result in a mangled resolv.conf
file which could effectively deny access to local sites.  This is not
a security issue as rogue dhcp servers could already do this without
sending invalid strings.

Reviewed by:	cperciva
MFC After:	3 days
2005-08-30 18:20:46 +00:00
Brooks Davis
8794fdbb48 Add __FBSDID to all .c files in dhclient to aid in determining file
versions when dealing with user problems.
2005-08-23 23:59:55 +00:00
Brooks Davis
acccb9aa83 Don't reject packets with server names containing characters that are
not allowed in domain names.  RFC 2132 does not list valid or invalid
characters and the ISC client accepts anything here.

Reported by:	ps
2005-07-28 00:24:39 +00:00
Sam Leffler
b35f2511fa treat REASSOC events just like ASSOC
MFC after:	3 days
2005-07-25 04:32:40 +00:00
Brooks Davis
a36c0b6b78 Don't complain when we receive smtp, pop, nntp, www, finger, and irc
server options.

Reported by:	Max Boyarov <max_b at tut dot by>
Approved by:	re (dhclient blanket)
2005-06-30 05:50:52 +00:00
Brooks Davis
b388f1cb10 People like to do RFC violating things with the domain-name option and
include a space seperated list of domains instead of the domain of the
host.  This is supported on too many platforms to break for now so,
remove validation of this option for the moment.

The correct solution longer term is to implement RFC 3397 support and
then treat domain-name options containing space seperated lists of
domains as domain-search options for backwards compatability.

Approved by:	re (dhclient blanket)
2005-06-30 05:32:42 +00:00
Brooks Davis
59eac186e2 Avoid a null pointer dereference by not expiring our lease if we don't
have an active one.

Submitted by:	sam
Reported by:	James Snow <snow at teardrop dot org>
Approved by:	re (dhclient blanket)
2005-06-13 23:43:08 +00:00
Brooks Davis
9c13d9cd98 Fix build on 64-bit platforms where time_t is 64 bit. Since where
talking about time related to leases, it should be OK to cast these to
(int)s rather than using intmax_t.

Submitted by:	ru
Pointy hat:	brooks
2005-06-07 14:47:54 +00:00
Brooks Davis
2b19b6fca1 Define _PATH_VAREMPTY.
Add a -b option to background immediatly.

Add support for 802.11 routing messages to "instantly" renegotiate
at lease when we associate with a new network.

Submitted by:	sam
2005-06-07 04:26:14 +00:00
Brooks Davis
47c0859616 Import the OpenBSD dhclient as shipped with OpenBSD-3.7 (the tag
OPENBSD_3_7).
2005-06-07 04:05:09 +00:00