[Dnsmasq-discuss] Announce: dnsmasq-2.52
simon at thekelleys.org.uk
Fri Jan 22 20:28:32 GMT 2010
Dnsmasq 2.52 is now available for download from
The changes since the previous version are appended below.
Work around a Linux kernel bug which insists that the
length of the option passed to setsockopt must be at least
sizeof(int) bytes, even if we're calling SO_BINDTODEVICE
and the device name is "lo". Note that this is fixed
in kernel 2.6.31, but the workaround is harmless and
allows earlier kernels to be used. Also fix dnsmasq
bug which reported the wrong address when this failed.
Thanks to Fedor for finding this.
The API for IPv6 PKTINFO changed around Linux kernel
2.6.14. Workaround the case where dnsmasq is compiled
against newer headers, but then run on an old kernel:
necessary for some *WRT distros.
Re-read the set of network interfaces when re-loading
/etc/resolv.conf if --bind-interfaces is not set. This
handles the case that loopback interfaces do not exist
when dnsmasq is first started.
Tweak the PXE code to support port 4011. This should
reduce broadcasts and make things more reliable when other
servers are around. It also improves inter-operability
with certain clients.
Make a pxe-service configuration with no filename or boot
service type legal: this does a local boot. eg.
pxe-service=x86PC, "Local boot"
Be more conservative in detecting "A for A"
queries. Dnsmasq checks if the name in a type=A query looks
like a dotted-quad IP address and answers the query itself
if so, rather than forwarding it. Previously dnsmasq
relied in the library function inet_addr() to convert
addresses, and that will accept some things which are
confusing in this context, like 1.2.3 or even just
1234. Now we only do A for A processing for four decimal
numbers delimited by dots.
A couple of tweaks to fix compilation on Solaris. Thanks
to Joel Macklow for help with this.
Another Solaris compilation tweak, needed for Solaris
2009.06. Thanks to Lee Essen for that.
Added extract packaging stuff from Lee Essen to
Increased the default limit on number of leases to 1000
(from 150). This is mainly a defence against DoS attacks,
and for the average "one for two class C networks"
installation, IP address exhaustion does that just as
well. Making the limit greater than the number of IP
addresses available in such an installation removes a
surprise which otherwise can catch people out.
Removed extraneous trailing space in the value of the
DNSMASQ_TIME_REMAINING DNSMASQ_LEASE_LENGTH and
DNSMASQ_LEASE_EXPIRES environment variables. Thanks to
Gildas Le Nadan for spotting this.
Provide the network-id tags for a DHCP transaction to
the lease-change script in the environment variable
DNSMASQ_TAGS. A good suggestion from Gildas Le Nadan.
Add support for RFC3925 "Vendor-Identifying Vendor
Options". The syntax looks like this:
--dhcp-option=vi-encap:<enterprise number>, .........
Add support to --dhcp-match to allow matching against
RFC3925 "Vendor-Identifying Vendor Classes". The syntax
looks like this:
--dhcp-match=tag,vi-encap<enterprise number>, <value>
Add some application specific code to assist in
implementing the Broadband forum TR069 CPE-WAN
specification. The details are in contrib/CPE-WAN/README
Increase the default DNS packet size limit to 4096, as
recommended by RFC5625 section 4.4.3. This can be
reconfigured using --edns-packet-max if needed. Thanks to
Francis Dupont for pointing this out.
Rewrite query-ids even for DNSSEC signed packets, since
this is allowed by RFC5625 section 4.5.
Use getopt_long by default on OS X. It has been supported
since version 10.3.0. Thanks to Arek Dreyer for spotting
Added up-to-date startup configuration for MacOSX/launchd
in contrib/MacOSX-launchd. Thanks to Arek Dreyer for
Fix link error when including Dbus but excluding DHCP.
Thanks to Oschtan for the bug report.
Updated French translation. Thanks to Gildas Le Nadan.
Updated Polish translation. Thanks to Jan Psota.
Updated Spanish translation. Thanks to Chris Chatham.
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