+version 2.73
+ Fix crash at startup when an empty suffix is supplied to
+ --conf-dir, also trivial memory leak. Thanks to
+ Tomas Hozza for spotting this.
+
+ Remove floor of 4096 on advertised EDNS0 packet size when
+ DNSSEC in use, the original rationale for this has long gone.
+ Thanks to Anders Kaseorg for spotting this.
+
+ Use inotify for checking on updates to /etc/resolv.conf and
+ friends under Linux. This fixes race conditions when the files are
+ updated rapidly and saves CPU by noy polling. To build
+ a binary that runs on old Linux kernels without inotify,
+ use make COPTS=-DNO_INOTIFY
+
+ Fix breakage of --domain=<domain>,<subnet>,local - only reverse
+ queries were intercepted. THis appears to have been broken
+ since 2.69. Thanks to Josh Stone for finding the bug.
+
+ Eliminate IPv6 privacy addresses and deprecated addresses from
+ the answers given by --interface-name. Note that reverse queries
+ (ie looking for names, given addresses) are not affected.
+ Thanks to Michael Gorbach for the suggestion.
+
+ Fix crash in DNSSEC code with long RRs. Thanks to Marco Davids
+ for the bug report.
+
+ Add --ignore-address option. Ignore replies to A-record
+ queries which include the specified address. No error is
+ generated, dnsmasq simply continues to listen for another
+ reply. This is useful to defeat blocking strategies which
+ rely on quickly supplying a forged answer to a DNS
+ request for certain domains, before the correct answer can
+ arrive. Thanks to Glen Huang for the patch.
+
+ Revisit the part of DNSSEC validation which determines if an
+ unsigned answer is legit, or is in some part of the DNS
+ tree which should be signed. Dnsmasq now works from the
+ DNS root downward looking for the limit of signed
+ delegations, rather than working bottom up. This is
+ both more correct, and less likely to trip over broken
+ nameservers in the unsigned parts of the DNS tree
+ which don't respond well to DNSSEC queries.
+
+ Add --log-queries=extra option, which makes logs easier
+ to search automatically.
+
+ Add --min-cache-ttl option. I've resisted this for a long
+ time, on the grounds that disbelieving TTLs is never a
+ good idea, but I've been persuaded that there are
+ sometimes reasons to do it. (Step forward, GFW).
+ To avoid misuse, there's a hard limit on the TTL
+ floor of one hour. Thansk to RinSatsuki for the patch.
+
+ Cope with multiple interfaces with the same link-local
+ address. (IPv6 addresses are scoped, so this is allowed.)
+ Thanks to Cory Benfield for help with this.
+
+ Add --dhcp-hostsdir. This allows addition of new host
+ configurations to a running dnsmasq instance much more
+ cheaply than having dnsmasq re-read all its existing
+ configuration each time.
+
+ Don't reply to DHCPv6 SOLICIT messages if we're not
+ configured to do stateful DHCPv6. Thanks to Win King Wan
+ for the patch.
+
+ Fix broken DNSSEC validation of ECDSA signatures.
+
+
+version 2.72
+ Add ra-advrouter mode, for RFC-3775 mobile IPv6 support.
+
+ Add support for "ipsets" in *BSD, using pf. Thanks to
+ Sven Falempim for the patch.
+
+ Fix race condition which could lock up dnsmasq when an
+ interface goes down and up rapidly. Thanks to Conrad
+ Kostecki for helping to chase this down.
+
+ Add DBus methods SetFilterWin2KOption and SetBogusPrivOption
+ Thanks to the Smoothwall project for the patch.
+
+ Fix failure to build against Nettle-3.0. Thanks to Steven
+ Barth for spotting this and finding the fix.
+
+ When assigning existing DHCP leases to intefaces by comparing
+ networks, handle the case that two or more interfaces have the
+ same network part, but different prefix lengths (favour the
+ longer prefix length.) Thanks to Lung-Pin Chang for the
+ patch.
+
+ Add a mode which detects and removes DNS forwarding loops, ie
+ a query sent to an upstream server returns as a new query to
+ dnsmasq, and would therefore be forwarded again, resulting in
+ a query which loops many times before being dropped. Upstream
+ servers which loop back are disabled and this event is logged.
+ Thanks to Smoothwall for their sponsorship of this feature.
+
+ Extend --conf-dir to allow filtering of files. So
+ --conf-dir=/etc/dnsmasq.d,\*.conf
+ will load all the files in /etc/dnsmasq.d which end in .conf
+
+ Fix bug when resulted in NXDOMAIN answers instead of NODATA in
+ some circumstances.
+
+ Fix bug which caused dnsmasq to become unresponsive if it
+ failed to send packets due to a network interface disappearing.
+ Thanks to Niels Peen for spotting this.
+
+ Fix problem with --local-service option on big-endian platforms
+ Thanks to Richard Genoud for the patch.
+
+
+version 2.71
+ Subtle change to error handling to help DNSSEC validation
+ when servers fail to provide NODATA answers for
+ non-existent DS records.
+
+ Tweak code which removes DNSSEC records from answers when
+ not required. Fixes broken answers when additional section
+ has real records in it. Thanks to Marco Davids for the bug
+ report.
+
+ Fix DNSSEC validation of ANY queries. Thanks to Marco Davids
+ for spotting that too.
+
+ Fix total DNS failure and 100% CPU use if cachesize set to zero,
+ regression introduced in 2.69. Thanks to James Hunt and
+ the Ubuntu crowd for assistance in fixing this.
+
+
+version 2.70
+ Fix crash, introduced in 2.69, on TCP request when dnsmasq
+ compiled with DNSSEC support, but running without DNSSEC
+ enabled. Thanks to Manish Sing for spotting that one.
+
+ Fix regression which broke ipset functionality. Thanks to
+ Wang Jian for the bug report.
+
+
+version 2.69
+ Implement dynamic interface discovery on *BSD. This allows
+ the contructor: syntax to be used in dhcp-range for DHCPv6
+ on the BSD platform. Thanks to Matthias Andree for
+ valuable research on how to implement this.
+
+ Fix infinite loop associated with some --bogus-nxdomain
+ configs. Thanks fogobogo for the bug report.
+
+ Fix missing RA RDNS option with configuration like
+ --dhcp-option=option6:23,[::] Thanks to Tsachi Kimeldorfer
+ for spotting the problem.
+
+ Add [fd00::] and [fe80::] as special addresses in DHCPv6
+ options, analogous to [::]. [fd00::] is replaced with the
+ actual ULA of the interface on the machine running
+ dnsmasq, [fe80::] with the link-local address.
+ Thanks to Tsachi Kimeldorfer for championing this.
+
+ DNSSEC validation and caching. Dnsmasq needs to be
+ compiled with this enabled, with
+
+ make dnsmasq COPTS=-DHAVE_DNSSEC
+
+ this add dependencies on the nettle crypto library and the
+ gmp maths library. It's possible to have these linked
+ statically with
+
+ make dnsmasq COPTS='-DHAVE_DNSSEC -DHAVE_DNSSEC_STATIC'
+
+ which bloats the dnsmasq binary, but saves the size of
+ the shared libraries which are much bigger.
+
+ To enable, DNSSEC, you will need a set of
+ trust-anchors. Now that the TLDs are signed, this can be
+ the keys for the root zone, and for convenience they are
+ included in trust-anchors.conf in the dnsmasq
+ distribution. You should of course check that these are
+ legitimate and up-to-date. So, adding
+
+ conf-file=/path/to/trust-anchors.conf
+ dnssec
+
+ to your config is all thats needed to get things
+ working. The upstream nameservers have to be DNSSEC-capable
+ too, of course. Many ISP nameservers aren't, but the
+ Google public nameservers (8.8.8.8 and 8.8.4.4) are.
+ When DNSSEC is configured, dnsmasq validates any queries
+ for domains which are signed. Query results which are
+ bogus are replaced with SERVFAIL replies, and results
+ which are correctly signed have the AD bit set. In
+ addition, and just as importantly, dnsmasq supplies
+ correct DNSSEC information to clients which are doing
+ their own validation, and caches DNSKEY, DS and RRSIG
+ records, which significantly improve the performance of
+ downstream validators. Setting --log-queries will show
+ DNSSEC in action.
+
+ If a domain is returned from an upstream nameserver without
+ DNSSEC signature, dnsmasq by default trusts this. This
+ means that for unsigned zone (still the majority) there
+ is effectively no cost for having DNSSEC enabled. Of course
+ this allows an attacker to replace a signed record with a
+ false unsigned record. This is addressed by the
+ --dnssec-check-unsigned flag, which instructs dnsmasq
+ to prove that an unsigned record is legitimate, by finding
+ a secure proof that the zone containing the record is not
+ signed. Doing this has costs (typically one or two extra
+ upstream queries). It also has a nasty failure mode if
+ dnsmasq's upstream nameservers are not DNSSEC capable.
+ Without --dnssec-check-unsigned using such an upstream
+ server will simply result in not queries being validated;
+ with --dnssec-check-unsigned enabled and a
+ DNSSEC-ignorant upstream server, _all_ queries will fail.
+
+ Note that DNSSEC requires that the local time is valid and
+ accurate, if not then DNSSEC validation will fail. NTP
+ should be running. This presents a problem for routers
+ without a battery-backed clock. To set the time needs NTP
+ to do DNS lookups, but lookups will fail until NTP has run.
+ To address this, there's a flag, --dnssec-no-timecheck
+ which disables the time checks (only) in DNSSEC. When dnsmasq
+ is started and the clock is not synced, this flag should
+ be used. As soon as the clock is synced, SIGHUP dnsmasq.
+ The SIGHUP clears the cache of partially-validated data and
+ resets the no-timecheck flag, so that all DNSSEC checks
+ henceforward will be complete.
+
+ The development of DNSSEC in dnsmasq was started by
+ Giovanni Bajo, to whom huge thanks are owed. It has been
+ supported by Comcast, whose techfund grant has allowed for
+ an invaluable period of full-time work to get it to
+ a workable state.
+
+ Add --rev-server. Thanks to Dave Taht for suggesting this.
+
+ Add --servers-file. Allows dynamic update of upstream servers
+ full access to configuration.
+
+ Add --local-service. Accept DNS queries only from hosts
+ whose address is on a local subnet, ie a subnet for which
+ an interface exists on the server. This option
+ only has effect if there are no --interface --except-interface,
+ --listen-address or --auth-server options. It is intended
+ to be set as a default on installation, to allow
+ unconfigured installations to be useful but also safe from
+ being used for DNS amplification attacks.
+
+ Fix crashes in cache_get_cname_target() when dangling CNAMEs
+ encountered. Thanks to Andy and the rt-n56u project for
+ find this and helping to chase it down.
+
+ Fix wrong RCODE in authoritative DNS replies to PTR queries. The
+ correct answer was included, but the RCODE was set to NXDOMAIN.
+ Thanks to Craig McQueen for spotting this.
+
+ Make statistics available as DNS queries in the .bind TLD as
+ well as logging them.
+
+
+version 2.68
+ Use random addresses for DHCPv6 temporary address
+ allocations, instead of algorithmically determined stable
+ addresses.
+
+ Fix bug which meant that the DHCPv6 DUID was not available
+ in DHCP script runs during the lifetime of the dnsmasq
+ process which created the DUID de-novo. Once the DUID was
+ created and stored in the lease file and dnsmasq
+ restarted, this bug disappeared.
+
+ Fix bug introduced in 2.67 which could result in erroneous
+ NXDOMAIN returns to CNAME queries.
+
+ Fix build failures on MacOS X and openBSD.
+
+ Allow subnet specifications in --auth-zone to be interface
+ names as well as address literals. This makes it possible
+ to configure authoritative DNS when local address ranges
+ are dynamic and works much better than the previous
+ work-around which exempted contructed DHCP ranges from the
+ IP address filtering. As a consequence, that work-around
+ is removed. Under certain circumstances, this change wil
+ break existing configuration: if you're relying on the
+ contructed-range exception, you need to change --auth-zone
+ to specify the same interface as is used to construct your
+ DHCP ranges, probably with a trailing "/6" like this:
+ --auth-zone=example.com,eth0/6 to limit the addresses to
+ IPv6 addresses of eth0.
+
+ Fix problems when advertising deleted IPv6 prefixes. If
+ the prefix is deleted (rather than replaced), it doesn't
+ get advertised with zero preferred time. Thanks to Tsachi
+ for the bug report.
+
+ Fix segfault with some locally configured CNAMEs. Thanks
+ to Andrew Childs for spotting the problem.
+
+ Fix memory leak on re-reading /etc/hosts and friends,
+ introduced in 2.67.
+
+ Check the arrival interface of incoming DNS and TFTP
+ requests via IPv6, even in --bind-interfaces mode. This
+ isn't possible for IPv4 and can generate scary warnings,
+ but as it's always possible for IPv6 (the API always
+ exists) then we should do it always.
+
+ Tweak the rules on prefix-lengths in --dhcp-range for
+ IPv6. The new rule is that the specified prefix length
+ must be larger than or equal to the prefix length of the
+ corresponding address on the local interface.
+
+
version 2.67
Fix crash if upstream server returns SERVFAIL when
--conntrack in use. Thanks to Giacomo Tazzari for finding
Remove restriction on prefix-length in --auth-zone. Thanks
to Toke Hoiland-Jorgensen for suggesting this.
-
+ Log when the maximum number of concurrent DNS queries is
+ reached. Thanks to Marcelo Salhab Brogliato for the patch.
+
+ If wildcards are used in --interface, don't assume that
+ there will only ever be one available interface for DHCP
+ just because there is one at start-up. More may appear, so
+ we can't use SO_BINDTODEVICE. Thanks to Natrio for the bug
+ report.
+
+ Increase timeout/number of retries in TFTP to accomodate
+ AudioCodes Voice Gateways doing streaming writes to flash.
+ Thanks to Damian Kaczkowski for spotting the problem.
+
+ Fix crash with empty DHCP string options when adding zero
+ terminator. Thanks to Patrick McLean for the bug report.
+
+ Allow hostnames to start with a number, as allowed in
+ RFC-1123. Thanks to Kyle Mestery for the patch.
+
+ Fixes to DHCP FQDN option handling: don't terminate FQDN
+ if domain not known and allow a FQDN option with blank
+ name to request that a FQDN option is returned in the
+ reply. Thanks to Roy Marples for the patch.
+
+ Make --clear-on-reload apply to setting upstream servers
+ via DBus too.
+
+ When the address which triggered the construction of an
+ advertised IPv6 prefix disappears, continue to advertise
+ the prefix for up to 2 hours, with the preferred lifetime
+ set to zero. This satisfies RFC 6204 4.3 L-13 and makes
+ things work better if a prefix disappears without being
+ deprecated first. Thanks to Uwe Schindler for persuasively
+ arguing for this.
+
+ Fix MAC address enumeration on *BSD. Thanks to Brad Smith
+ for the bug report.
+
+ Support RFC-4242 information-refresh-time options in the
+ reply to DHCPv6 information-request. The lease time of the
+ smallest valid dhcp-range is sent. Thanks to Uwe Schindler
+ for suggesting this.
+
+ Make --listen-address higher priority than --except-interface
+ in all circumstances. Thanks to Thomas Hood for the bugreport.
+
+ Provide independent control over which interfaces get TFTP
+ service. If enable-tftp is given a list of interfaces, then TFTP
+ is provided on those. Without the list, the previous behaviour
+ (provide TFTP to the same interfaces we provide DHCP to)
+ is retained. Thanks to Lonnie Abelbeck for the suggestion.
+
+ Add --dhcp-relay config option. Many thanks to vtsl.net
+ for sponsoring this development.
+
+ Fix crash with empty tag: in --dhcp-range. Thanks to
+ Kaspar Schleiser for the bug report.
+
+ Add "baseline" and "bloatcheck" makefile targets, for
+ revealing size changes during development. Thanks to
+ Vladislav Grishenko for the patch.
+
+ Cope with DHCPv6 clients which send REQUESTs without
+ address options - treat them as SOLICIT with rapid commit.
+
+ Support identification of clients by MAC address in
+ DHCPv6. When using a relay, the relay must support RFC
+ 6939 for this to work. It always works for directly
+ connected clients. Thanks to Vladislav Grishenko
+ for prompting this feature.
+
+ Remove the rule for constructed DHCP ranges that the local
+ address must be either the first or last address in the
+ range. This was originally to avoid SLAAC addresses, but
+ we now explicitly autoconfig and privacy addresses instead.
+
+ Update Polish translation. Thanks to Jan Psota.
+
+ Fix problem in DHCPv6 vendorclass/userclass matching
+ code. Thanks to Tanguy Bouzeloc for the patch.
+
+ Update Spanish transalation. Thanks to Vicente Soriano.
+
+ Add --ra-param option. Thanks to Vladislav Grishenko for
+ inspiration on this.
+
+ Add --add-subnet configuration, to tell upstream DNS
+ servers where the original client is. Thanks to DNSthingy
+ for sponsoring this feature.
+
+ Add --quiet-dhcp, --quiet-dhcp6 and --quiet-ra. Thanks to
+ Kevin Darbyshire-Bryant for the initial patch.
+
+ Allow A/AAAA records created by --interface-name to be the
+ target of --cname. Thanks to Hadmut Danisch for the
+ suggestion.
+
+ Avoid treating a --dhcp-host which has an IPv6 address
+ as eligable for use with DHCPv4 on the grounds that it has
+ no address, and vice-versa. Thanks to Yury Konovalov for
+ spotting the problem.
+
+ Do a better job caching dangling CNAMEs. Thanks to Yves
+ Dorfsman for spotting the problem.
+
+
version 2.66
Add the ability to act as an authoritative DNS
server. Dnsmasq can now answer queries from the wider 'net
projects / people / ms / dnsmasq.git / blobdiff