681 lines
24 KiB
Plaintext
681 lines
24 KiB
Plaintext
Internet Software Consortium
|
|
Dynamic Host Configuration Protocol Distribution
|
|
Version 2, Beta 1, Patchlevel 25
|
|
April 9, 1999
|
|
|
|
Release Notes
|
|
|
|
This is the first Beta release of Version 2 of the Internet Software
|
|
Consortium DHCP Distribution. This beta is believed to be fairly
|
|
stable.
|
|
|
|
PLANS
|
|
|
|
Version 1 of the ISC DHCP Distribution includes just a DHCP Server.
|
|
Version 1 has been in feature freeze since late 1996, and is quite
|
|
stable. This is the release that we would expect very conservative
|
|
sites to run in production, but it is no longer recommended.
|
|
|
|
Version 2 of the ISC DHCP Distribution adds a DHCP Client and a
|
|
DHCP/BOOTP Relay Agent to the DHCP Server that was offered in version
|
|
1.0. In addition, some new capabilities have been added to the
|
|
server:
|
|
|
|
- IP addresses are now tested before they are assigned to
|
|
clients. This allows the DHCP server to detect rogue
|
|
machines that may have hijacked IP addresses before an IP
|
|
address conflict can occur.
|
|
|
|
- The server may be configured so that some DHCP clients can
|
|
be excluded from booting.
|
|
|
|
- Improved NAKing behaviour, so that clients that are using
|
|
addresses other than the one the server knows they should be
|
|
using are disciplined quickly.
|
|
|
|
This version has been in a near feature freeze since January of 1998,
|
|
has been in Beta test since then, and is planned for final release in
|
|
mid-1999. It has a number of important features, and is the release
|
|
that we would expect most sites to run. It is possible to run the
|
|
Version 1 server with the Version 2 client at sites that want to be
|
|
really conservative.
|
|
|
|
Version 3 of the ISC DHCP Distribution will add conditional behaviour,
|
|
client classing, Dynamic DNS Support, DHCPv4 16-bit option codes,
|
|
asynchronous DNS query resolution, DHCP Authentication, and possibly
|
|
support for a DHCP Interserver Protocol and live querying of the DHCP
|
|
database. Currently, only client classing and conditional behaviour
|
|
have been implemented - the DNS code is waiting for an enhanced DNS
|
|
resolver. The code has gone through a major internal restructuring
|
|
which will help to support wider option codes, and possibly IPv6, as
|
|
well as a more sensible memory allocation strategy. This release is
|
|
running in producion at the ISC, but is not expected to be stable in
|
|
the near future, and is intended for sites that are in a position to
|
|
experiment, or for sites that desperately need the new features.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 24
|
|
|
|
- D'oh! Fix a really stupid mistake in hash.c.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 23
|
|
|
|
- Support an always-reply-rfc1048 flag, which says to reply with an
|
|
RFC1048-style vendor extensions buffer even if the client didn't
|
|
send an RFC1048-style magic number.
|
|
|
|
- Fix a null pointer dereference.
|
|
|
|
- Use netmask from subnet if no netmask option specified.
|
|
|
|
- IRIX support (thanks to Don Badrak).
|
|
|
|
- Install unformatted manual pages on Linux.
|
|
|
|
- Add note in README about zcat vs. gzcat on BSD/os.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 22
|
|
|
|
- Test for lease before dereferencing it in dhcprequest.
|
|
|
|
- Free the client parameter request list in dhcpnak if there is one.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 21
|
|
|
|
- Fix a pasto in options.c that will cause a core dump whenever a
|
|
client sends in a request without a parameter request list.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 20
|
|
|
|
- Actually do the client fix mentioned below - Patchlevel 20 only contained
|
|
half of the fix.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 19
|
|
|
|
- Removed arp table clearing code from solaris client script.
|
|
|
|
- Document Linux "protocol not configured" error more thoroughly.
|
|
|
|
- Clean up some unused variables.
|
|
|
|
- Add entry and exit hooks to all dhcp client scripts, along with a
|
|
make_resolv_conf function that can be redefined in the entry hooks.
|
|
Document this new feature set.
|
|
|
|
- Fix client to take advantage of network APIs that allow it to
|
|
receive a unicast instead of requesting that the DHCP server
|
|
broadcast its response.
|
|
|
|
- Add -pf flag to all daemons allowing user to specify PID file name
|
|
on command line.
|
|
|
|
- Undo a previous change that attempted to be clever about testing
|
|
interface flags but wound up being stupid instead.
|
|
|
|
- Enforce access control on DHCPREQUEST messages as well as
|
|
DHCPDISCOVER messages.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 18
|
|
|
|
- Support added for AIX 4.1.5.0 (and hopefully other versions).
|
|
|
|
- Use /var/run instead of /etc on Digital Unix.
|
|
|
|
- Change DHCP client exponential backoff code to back off more slowly,
|
|
so that it is more robust in lossy environments, at the expense of
|
|
being a bit less polite to the server.
|
|
|
|
- Don't request a specific lease interval in the client unless the
|
|
user says to do so.
|
|
|
|
- Don't print DHCPXXX in wrong xxx messages unless DEBUG is defined.
|
|
|
|
- Fix handling of secs field.
|
|
|
|
- Fix handling of append statement.
|
|
|
|
- Fix documentation for append and prepend statements.
|
|
|
|
- Fix server support for parameter request list and maximum message
|
|
size.
|
|
|
|
- Parameterize more hardware types in discover_interfaces. Check for
|
|
IFF_BROADCAST instead of !IFF_POINTOPOINT
|
|
|
|
- Print kernel configuration warning message if we get EINVAL when
|
|
opening or configuring the Linux packet filter.
|
|
|
|
- Fix a bug in UDP checksum code (thanks to John Nemeth for figuring
|
|
this out) and re-enable UDP checksumming. This allows the client
|
|
to work with some buggy DHCP servers that can't handle zero
|
|
checksums in the UDP header - in particular, the one John's cable
|
|
modem ISP is using.
|
|
|
|
- Don't report packet header checksum errors unless we see a lot of
|
|
them. It's perfectly normal for some number of checksum errors to
|
|
occur.
|
|
|
|
- Refer to the dhcpd.leases man page when printing an error message
|
|
prior to exiting because there's no lease database.
|
|
|
|
- Add information to the README telling the reader how to get to the
|
|
manual pages.
|
|
|
|
- Fix the server packet transmission code to unicast when it can.
|
|
|
|
- Fix a typo in the dhcpd.conf manual page.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 17
|
|
|
|
- Fix a bug in the relay agent where messages to the client would be
|
|
unicast in the IP header but broadcast in the link header. The
|
|
Microsoft DHCP client would reject such packets, preventing it from
|
|
being configured. This was only a problem on non-socket-API
|
|
platforms.
|
|
|
|
- Do not attempt to reclaim requested abandoned leases in response to
|
|
DHCPDISCOVER messages.
|
|
|
|
- Allow the maximum lease time parameter in a host declaration to
|
|
override the maximum lease time parameter in a subnet declaration.
|
|
|
|
- Better document the -p flag for dhclient, dhcrelay and dhcpd.
|
|
|
|
- Apply John Wehle's patch to fix the endianness bug in the dlpi
|
|
packet filter on Solaris.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 16
|
|
|
|
- Fix linux man page install location.
|
|
|
|
- Fix some confusion in the dhclient-script man page.
|
|
|
|
- Fix error in includes/cf/linux.h that would have made network API
|
|
selections in site.h work incorrectly.
|
|
|
|
- Fix some major stupidity in the code that figures out where or not a
|
|
client owns a particular lease.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 15
|
|
|
|
- Fix Makefile.conf on Linux to refer to /var/state/dhcp instead of
|
|
/var/state/dhcpd.
|
|
|
|
- Eliminate redundant #defines in includes/cf/linux.h (for neatness).
|
|
|
|
- Fix an obscure case where dhcpd is started by the /etc/rc system
|
|
with exactly the same pid each time, dhcpd.pid is not erased on
|
|
reboot, and therefore dhcpd would detect a server (itself) with the
|
|
pid in dhcpd.pid and decide that another server was running and
|
|
exit.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 14
|
|
|
|
- Install the dhcp databases in /var/state/dhcp instead of /etc or
|
|
/var/dhcpd, as suggested in the Linux Filesystem Hierarchy
|
|
Standard.
|
|
|
|
- Fix an endianness bug in dlpi.c. As a consequence, make the
|
|
Solaris/i386 use dlpi again.
|
|
|
|
- Fix a bunch of bugs in the Solaris client script.
|
|
|
|
- Add some more information about Solaris to the README file.
|
|
|
|
- Adjust startup message in interface probe so that the relay agent
|
|
and client's unattached status will not trigger questions.
|
|
|
|
- Update some error messages to provide more help to new users for
|
|
some common mistakes.
|
|
|
|
- Create an interface alias on Solaris when setting up IP aliases,
|
|
rather than trying to do things the *BSD way.
|
|
|
|
- Fix a null pointer dereference bug (this time I went through the
|
|
whole function and audited it for more null pointer dereferences,
|
|
and I didn't find any, for what that's worth).
|
|
|
|
- Don't ever release leases in response to a DHCPDISCOVER (I think
|
|
this was unlikely anyway, but why not be correct?).
|
|
|
|
- Remove the shared-network example from the sample dhcpd.conf file.
|
|
|
|
- Make ``make install'' make all first.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 13
|
|
|
|
- Support DESTDIR on installs.
|
|
|
|
- Fix a bug in dhcp.c where a store through a null pointer would
|
|
be made under some reasonably common circumstances.
|
|
|
|
- Add test for ARPHRD_TUNNEL so that client and server do not fail on
|
|
versions of Linux running IPsec implementations or the like.
|
|
|
|
- Move tests for constants defined in O.S. headers into osdep.h - test
|
|
for HAVE_whatever in .c files. Define relevant HAVE_whatevers in
|
|
linux.h, so that versions of linux that define these constants as
|
|
enums will still work.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 12
|
|
|
|
- Initialize the "quiet" variable in dhclient.c to zero (it was used
|
|
without first having been initialized).
|
|
|
|
- Fix the parser code for the authoritative keyword.
|
|
|
|
- Adjust lease discovery code to NAK more aggressively for addresses
|
|
the server knows it owns.
|
|
|
|
- Add several new messages for DHCPNAK.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 11
|
|
|
|
- Use DLPI only on sparcs running Solaris, since it seems not to work
|
|
on i386 boxes running Solaris for reasons yet to be determined.
|
|
|
|
- In the client, close standard I/O descriptors when forking a daemon.
|
|
|
|
- Don't let large lease lengths wrap lease expiry times - just use
|
|
what fits into a TIME value.
|
|
|
|
- Fix a bug in the SIOCGIFCONF interface scanning code.
|
|
|
|
- Fix a core dump in the interface scanner that crops up on Linux when
|
|
an interface is specified on the command line.
|
|
|
|
- Don't use %D in strftime because egcs complains about it.
|
|
|
|
- Print the error message if SO_BINDTODEVICE fails.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 10
|
|
|
|
- Update top-level Makefile so that it exits correctly on errors in
|
|
submakes under bash/gnu make (dunno which is the culprit, and don't
|
|
really care).
|
|
|
|
- Print a more helpful message if no free BPF devices are found.
|
|
|
|
- Add support for specifying that the server is or is not
|
|
authoritative for a particular network segment.
|
|
|
|
- Fix two stupid typos in lpf.c.
|
|
|
|
- Print a more helpful message if we can't create an LPF socket or
|
|
can't attach a filter to it.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 9
|
|
|
|
- Correct the hopelessly outdated information about Linux at the top
|
|
of the README - many apologies to the Linux people who have had to
|
|
read that nonsense for the past couple of snapshots and have been
|
|
confused or annoyed by it. I simply hadn't read it recently, and
|
|
didn't realize how out-of-date it was.
|
|
|
|
- Print a message if the client finds no broadcast interfaces to
|
|
configure.
|
|
|
|
- Add support for use-lease-addr-for-default-route flag in server, so
|
|
that Windows machines can be made to ARP for all addresses.
|
|
|
|
- Update README file to mention new Linux gotchas.
|
|
|
|
- After finally understanding Brian Murrel's code (my fault, not his)
|
|
to get interface names from /proc/net/dev on Linux, fix what I broke
|
|
of his code and document it.
|
|
|
|
- Use sendto rather than send for SOCK_PACKET sockets, because they
|
|
can't be connected, only bound. :'(
|
|
|
|
- Fix up SOCK_PACKET creation so that the kernel doesn't complain
|
|
about it.
|
|
|
|
- Fix incorrect tests in linux client script:
|
|
[ $relmajor == 2 ] -> [ $relmajor -eq 2 ]
|
|
|
|
- Make typedefs for u8, u16 and u32 types. These are Linux kernel
|
|
internal data types which are unfortunately exposed in the linux
|
|
packetfilter header file.
|
|
|
|
- Don't include <net/ethernet.h> in lpf.c - it defines things we're
|
|
already correctly defining elsewhere, and doesn't define any useful
|
|
new stuff.
|
|
|
|
- Finally fix client PREINIT bug that causes interfaces not specified
|
|
on the command line to be preinitialized. If no interfaces are
|
|
specified on the command line, all interfaces are still
|
|
preinitialized.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 8
|
|
|
|
- Fix socket API fallback setup code, which was causing Linux servers
|
|
and clients to loop endlessly on select when run as daemons.
|
|
|
|
- Add support for Linux 2.2 version number (treated the same as Linux
|
|
2.1, for now).
|
|
|
|
- Correct apparent error in DHCPREQUEST destination address handling
|
|
when in INIT-REBOOT state.
|
|
|
|
- Do not set BROADCAST flag if we have a valid IP address.
|
|
|
|
- Remove hard-coded filenames and use system-specific manifest
|
|
constants.
|
|
|
|
- Add entry and exit hooks to Linux dhclient-script (should be added
|
|
to all operating systems once tested).
|
|
|
|
- Test for linux major and minor version so as to correctly invoke
|
|
network configuration programs.
|
|
|
|
- Add support for Linux's gratuitous name change of bpf_insn structure
|
|
(can't pollute precious Linux sources with the "Berkeley" word, I
|
|
guess.
|
|
|
|
- Correct USE_BPF_{SEND,RECEIVE} ifdefs for if_reinitialize_*
|
|
functions.
|
|
|
|
- Ensure that we have ifreq structure before initializing interface -
|
|
if an interface was specified on the command line on Linux, this was
|
|
not the case.
|
|
|
|
- Get rid of references to enstamp structure in lpf.c. Correctly
|
|
declare and initialize sock_fprog structure (aka bpf_filter
|
|
structure on non-Linux machines).
|
|
|
|
- Define ssize_t on Ultrix.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 7
|
|
|
|
- Generalize FDDI support.
|
|
|
|
- Fix potential core dump in interface discovery code.
|
|
|
|
- Put explicit release versions on startup messages.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 6
|
|
|
|
- Add support for Linux Packet Filter (thanks to Brian Murrell, Interlinx).
|
|
|
|
- Add support for FDDI hardware type.
|
|
|
|
- Fix a long-standing bug in DLPI support where the ethertype was
|
|
being set incorrectly (thanks to Gong Wei, CCENet).
|
|
|
|
- Don't use DLPI RAW mode on Solaris.
|
|
|
|
- In the client, when a lease expires, the interface to which that
|
|
lease is attached is unconfigured. On systems that use the socket
|
|
API, the interface needs to then be reconfigured with the 0.0.0.0
|
|
address so that it can be used to get a new address.
|
|
|
|
- Add fallback support for Linux. This fixes a problem with the
|
|
relay agent when relaying over non-broadcast links, and may also fix
|
|
some obscure problems with unicasting DHCPACKs in both the server and
|
|
relay agent.
|
|
|
|
- When allocating leases, if the oldest lease is abandoned, try to
|
|
find a younger-but-still-expired lease rather than reclaiming the
|
|
abandoned lease.
|
|
|
|
- Add more documentation to README.
|
|
|
|
- The absence of the /etc/dhclient.conf file is no longer considered
|
|
an error.
|
|
|
|
- The dhcp client's lease file name can be specified on the command
|
|
line.
|
|
|
|
- The DHCP client should no longer zap interfaces that it has not been
|
|
directed to configure.
|
|
|
|
- If a client starts up in the init-reboot state, the xid will be a
|
|
"random" number rather than always being zero, as was previously the
|
|
case.
|
|
|
|
- In addition to comparing transaction IDs, compare hardware addresses
|
|
in response packets to verify that they are ours.
|
|
|
|
- Rewrite the client lease database after 20 leases have been written.
|
|
|
|
- Fix the exponential backoff code.
|
|
|
|
- Add a Y2k comment to indicate that something suspicious-looking is
|
|
in fact _not_ a problem.
|
|
|
|
- Use mkstemp if possible.
|
|
|
|
- Add missing fi in various client scripts.
|
|
|
|
- Use "search" instead of "domain" in linux resolv.conf files.
|
|
|
|
- Specify a hop count in all route command on solaris.
|
|
|
|
- If an allocation fails, don't try to zero out the allocation buffer
|
|
we didn't get.
|
|
|
|
- Support subnets that are subsets of other subnets - that is, for
|
|
example, 10.0.1.0/24 and 10.0.0.0/16. This is useful in fairly
|
|
obscure circumstances.
|
|
|
|
- Don't set the lease end time if it's already expired.
|
|
|
|
- Don't define INADDR_LOOPBACK on FreeBSD if it's already defined in a
|
|
system header.
|
|
|
|
- Use the broadcast address in the relay agent if we are using the BSD
|
|
socket API.
|
|
|
|
- Allow host declarations without names.
|
|
|
|
- Allow the server identifier option to be specified.
|
|
|
|
- Don't dump hostnames into the lease file if they contain
|
|
non-printable characters.
|
|
|
|
- Copy the entire client hardware address buffer that the client sends
|
|
to the output packet, not just the portion of it that's supposedly
|
|
significant according to the hardware address length field. This
|
|
is done for the benefit of certain Microsoft clients.
|
|
|
|
- Don't send a second ICMP echo request if we receive two DHCPDISCOVER
|
|
messages in quick succession. This prevents a rather annoying
|
|
timing race in configuring some Win95 clients.
|
|
|
|
- Fix up dhcp-options man page to make it more readable. Note that
|
|
netbios-name-server is the same thing as WINS.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 5
|
|
|
|
- Define some extra DLPI support flags that make DLPI work much better
|
|
on Solaris.
|
|
|
|
- Fix inet_aton prototype/declaration to match Internet Software
|
|
Consortium BIND distribution.
|
|
|
|
- Document new server-identifier functionality.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 4
|
|
|
|
- Do not use -Wstrict-prototypes on Solaris with gcc - if the Internet
|
|
Software Consortium BIND distribution is not installed, this produces
|
|
errors.
|
|
|
|
- Actually use the new DLPI support on Solaris - although the code was
|
|
added in Patchlevel 2, it wasn't enabled (blush).
|
|
|
|
- Fix a prototype bug that's exposed when DLPI support is enabled on
|
|
Solaris.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 3
|
|
|
|
- Fix a makefile botch that prevents the DHCP Distribution from
|
|
from compiling on Solaris with gcc. Sigh.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 2
|
|
|
|
- Allow server-identifier in any scope. Use in-scope server
|
|
identifier option rather than the default, if one exists.
|
|
|
|
- Delete newlines from abandoned lease reclaimation warning.
|
|
|
|
- Only release other applicable leases held by a client when the
|
|
client sends a DHCPREQUEST.
|
|
|
|
- Fix core dump when find_lease didn't find a lease.
|
|
|
|
- Update dhcpd.leases man page.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 1
|
|
|
|
- Use -Wno-char-subscript on Solaris to prevent bogus warnings from
|
|
gcc on Solaris 2.6.
|
|
|
|
- Add support for Apple's new Rhapsody operating system.
|
|
|
|
- Use DLPI on Solaris instead of using the BSD Sockets API.
|
|
|
|
- Fix two network input buffer overflow problems which could allow an
|
|
attacker to pervert the stack.
|
|
|
|
- Fix an ancient typo that could theoretically cause memory
|
|
corruption.
|
|
|
|
- Sort abandoned leases in at current time rather than end of time.
|
|
This allows abandoned leases to be reclaimed if there are no
|
|
available free leases.
|
|
|
|
- If a client explicitly requests a lease that's been abandoned, it's
|
|
probably the system that was answering pings on that address, so let it
|
|
have the lease.
|
|
|
|
- Fix a bunch of type conversion errors that are flagged by the Solaris
|
|
C compiler.
|
|
|
|
CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 0
|
|
|
|
- Fix two potential buffer overflow problems.
|
|
|
|
- Differentiate between versions of Linux for better success in
|
|
compiling.
|
|
|
|
- Fix bug in linux client script regarding routing setup.
|
|
|
|
- Clarify socket API error message on multiple interfaces.
|
|
|
|
- Fix broken comparison that was setting IP source address to zero.
|
|
|
|
- Reclaim abandoned leases if we run out of free leases.
|
|
|
|
CHANGES FROM THE DECEMBER 2, 1997 SNAPSHOT
|
|
|
|
- Use %ld to print pid_t and cast pid_t values to long to avoid
|
|
inconsistent declarations between different POSIX flavours.
|
|
|
|
- Add support for ARPHRD_IEEE802 (token ring) hardware type.
|
|
|
|
- If we own an address and a client requests it, but we can't assign
|
|
it to that client, we now NAK it so that the client doesn't try to
|
|
reuse it.
|
|
|
|
CHANGES FROM THE JUNE SNAPSHOT
|
|
|
|
- Support for NeXTstep 3.x and 4.x
|
|
|
|
- Added man pages for dhcpd.leases, dhclient-script, dhclient.leases
|
|
and dhclient.conf. Move general documentation of DHCP options into
|
|
a seperate man page which is referred to by the dhclient.conf and
|
|
dhcpd.conf man pages.
|
|
|
|
- Updated README to answer some frequently asked questions.
|
|
|
|
- Fixed a bug in command-line interface specification in dhclient - it
|
|
was formerly not possible to specify that only certain interfaces be
|
|
configured.
|
|
|
|
- Do not leave client scripts lying around in /tmp after they've been
|
|
used unless the -D flag is specified.
|
|
|
|
- Add a new, non-standard, not-guaranteed-to-stay-the-same system
|
|
configuration status message server which can be used to trigger the
|
|
client to recheck its address, e.g., after a laptop has been put to
|
|
sleep and then awakened (this has yet to be documented).
|
|
|
|
- Fix handling of media selection in the REBOOT phase - previously the
|
|
media type would not be remembered, which could cause severe delays
|
|
in reacquiring an address if the default media type was wrong.
|
|
|
|
- Allocate space for a NUL terminator on the end of client options -
|
|
this was previously overlooked, and could cause garbage characters
|
|
to be written to the temporary client script files.
|
|
|
|
- Use mkstemp if it's available.
|
|
|
|
- Supply network number and broadcast address to the client script so
|
|
that on systems that need these values, they don't need to be
|
|
computed with an awk script.
|
|
|
|
- Keep a PID file for the client and the relay agent, and have the
|
|
relay agent background itself by default.
|
|
|
|
- Add client script for bsd/os, fix many niggling bugs in existing
|
|
client scripts and add support for static routing tables to all bsd
|
|
scripts.
|
|
|
|
- Add a -q option to the client, server and relay agent so that they
|
|
can be started from /etc/rc scripts without spewing a bunch of
|
|
garbage on the console. By default, all three daemons still print
|
|
startup messages, since these are helpful in bug reporting.
|
|
|
|
- Don't print anything to stderr or stdout after going into
|
|
background.
|
|
|
|
- Fix bug where hostname keyword was not being recognized in
|
|
dhcpd.leases file, resulting in the loss of lease database entries.
|
|
|
|
- Fix problem on some operating systems where zero-length ifreq
|
|
structures were being offset incorrectly when scanning the interface
|
|
list on startup.
|
|
|
|
- Unless a BOOTP client requests it, never send more than 64 bytes of
|
|
options.
|
|
|
|
- Don't ping static leases, since we don't have a lease structure on
|
|
the heap to work with later.
|
|
|
|
- Fixed a compile problem on Solaris 2.6.
|
|
|
|
- Support interface aliases on Solaris.
|
|
|
|
- Print day and month with leading zero in lease files if less than
|
|
ten, for easier parsing by perl/sed/awk scripts.
|
|
|
|
- Never make the lease database world writable, even if dhcpd is
|
|
invoked with a bogus umask.
|
|
|
|
- Fix DHCPRELEASE handling (before, addressed would never be
|
|
released.)
|
|
|
|
- If there is more than one lease for a particular client on a
|
|
particular network, find the lease the client is asking for so as to
|
|
avoid a cycle of NAKs.
|
|
|
|
- If a BOOTP request is received from a particular client and that
|
|
client has previously received a DHCP address, make sure that we
|
|
still find a valid BOOTP lease so that we don't cycle through
|
|
addresses.
|
|
|
|
- Remove server-identifier option from documentation, other than to
|
|
document that it has been deprecated.
|
|
|
|
- Don't give up if we get an EINTR or EAGAIN while polling or
|
|
selecting - these return statuses can occur spuriously without
|
|
indicating a fatal problem.
|
|
|
|
- Do not select for exceptions, since we don't handle them. This was
|
|
causing massive CPU consumption on some systems.
|
|
|
|
- When a DHCP client has been assigned a fixed address but had
|
|
previously had a lease, it will request the old leased address. In
|
|
such an event, send a DHCPNAK so that it will discover its new
|
|
static binding.
|