2 Add ra-advrouter mode, for RFC-3775 mobile IPv6 support.
4 Add support for "ipsets" in *BSD, using pf. Thanks to
5 Sven Falempim for the patch.
7 Fix race condition which could lock up dnsmasq when an
8 interface goes down and up rapidly. Thanks to Conrad
9 Kostecki for helping to chase this down.
11 Add DBus methods SetFilterWin2KOption and SetBogusPrivOption
12 Thanks to the Smoothwall project for the patch.
14 Fix failure to build against Nettle-3.0. Thanks to Steven
15 Barth for spotting this and finding the fix.
17 When assigning existing DHCP leases to intefaces by comparing
18 networks, handle the case that two or more interfaces have the
19 same network part, but different prefix lengths (favour the
20 longer prefix length.) Thanks to Lung-Pin Chang for the
23 Add a mode which detects and removes DNS forwarding loops, ie
24 a query sent to an upstream server returns as a new query to
25 dnsmasq, and would therefore be forwarded again, resulting in
26 a query which loops many times before being dropped. Upstream
27 servers which loop back are disabled and this event is logged.
28 Thanks to Smoothwall for their sponsorship of this feature.
30 Include an RFC4191 route information option in router
31 advertisements for the prefix we're advertising. Thanks to
32 Ilya Ponetaev for the patch.
34 Extend --conf-dir to allow filtering of files. So
35 --conf-dir=/etc/dnsmasq.d,\*.conf
36 will load all the files in /etc/dnsmasq.d which end in .conf
40 Subtle change to error handling to help DNSSEC validation
41 when servers fail to provide NODATA answers for
42 non-existent DS records.
44 Tweak code which removes DNSSEC records from answers when
45 not required. Fixes broken answers when additional section
46 has real records in it. Thanks to Marco Davids for the bug
49 Fix DNSSEC validation of ANY queries. Thanks to Marco Davids
50 for spotting that too.
52 Fix total DNS failure and 100% CPU use if cachesize set to zero,
53 regression introduced in 2.69. Thanks to James Hunt and
54 the Ubuntu crowd for assistance in fixing this.
58 Fix crash, introduced in 2.69, on TCP request when dnsmasq
59 compiled with DNSSEC support, but running without DNSSEC
60 enabled. Thanks to Manish Sing for spotting that one.
62 Fix regression which broke ipset functionality. Thanks to
63 Wang Jian for the bug report.
67 Implement dynamic interface discovery on *BSD. This allows
68 the contructor: syntax to be used in dhcp-range for DHCPv6
69 on the BSD platform. Thanks to Matthias Andree for
70 valuable research on how to implement this.
72 Fix infinite loop associated with some --bogus-nxdomain
73 configs. Thanks fogobogo for the bug report.
75 Fix missing RA RDNS option with configuration like
76 --dhcp-option=option6:23,[::] Thanks to Tsachi Kimeldorfer
77 for spotting the problem.
79 Add [fd00::] and [fe80::] as special addresses in DHCPv6
80 options, analogous to [::]. [fd00::] is replaced with the
81 actual ULA of the interface on the machine running
82 dnsmasq, [fe80::] with the link-local address.
83 Thanks to Tsachi Kimeldorfer for championing this.
85 DNSSEC validation and caching. Dnsmasq needs to be
86 compiled with this enabled, with
88 make dnsmasq COPTS=-DHAVE_DNSSEC
90 this add dependencies on the nettle crypto library and the
91 gmp maths library. It's possible to have these linked
94 make dnsmasq COPTS='-DHAVE_DNSSEC -DHAVE_DNSSEC_STATIC'
96 which bloats the dnsmasq binary, but saves the size of
97 the shared libraries which are much bigger.
99 To enable, DNSSEC, you will need a set of
100 trust-anchors. Now that the TLDs are signed, this can be
101 the keys for the root zone, and for convenience they are
102 included in trust-anchors.conf in the dnsmasq
103 distribution. You should of course check that these are
104 legitimate and up-to-date. So, adding
106 conf-file=/path/to/trust-anchors.conf
109 to your config is all thats needed to get things
110 working. The upstream nameservers have to be DNSSEC-capable
111 too, of course. Many ISP nameservers aren't, but the
112 Google public nameservers (8.8.8.8 and 8.8.4.4) are.
113 When DNSSEC is configured, dnsmasq validates any queries
114 for domains which are signed. Query results which are
115 bogus are replaced with SERVFAIL replies, and results
116 which are correctly signed have the AD bit set. In
117 addition, and just as importantly, dnsmasq supplies
118 correct DNSSEC information to clients which are doing
119 their own validation, and caches DNSKEY, DS and RRSIG
120 records, which significantly improve the performance of
121 downstream validators. Setting --log-queries will show
124 If a domain is returned from an upstream nameserver without
125 DNSSEC signature, dnsmasq by default trusts this. This
126 means that for unsigned zone (still the majority) there
127 is effectively no cost for having DNSSEC enabled. Of course
128 this allows an attacker to replace a signed record with a
129 false unsigned record. This is addressed by the
130 --dnssec-check-unsigned flag, which instructs dnsmasq
131 to prove that an unsigned record is legitimate, by finding
132 a secure proof that the zone containing the record is not
133 signed. Doing this has costs (typically one or two extra
134 upstream queries). It also has a nasty failure mode if
135 dnsmasq's upstream nameservers are not DNSSEC capable.
136 Without --dnssec-check-unsigned using such an upstream
137 server will simply result in not queries being validated;
138 with --dnssec-check-unsigned enabled and a
139 DNSSEC-ignorant upstream server, _all_ queries will fail.
141 Note that DNSSEC requires that the local time is valid and
142 accurate, if not then DNSSEC validation will fail. NTP
143 should be running. This presents a problem for routers
144 without a battery-backed clock. To set the time needs NTP
145 to do DNS lookups, but lookups will fail until NTP has run.
146 To address this, there's a flag, --dnssec-no-timecheck
147 which disables the time checks (only) in DNSSEC. When dnsmasq
148 is started and the clock is not synced, this flag should
149 be used. As soon as the clock is synced, SIGHUP dnsmasq.
150 The SIGHUP clears the cache of partially-validated data and
151 resets the no-timecheck flag, so that all DNSSEC checks
152 henceforward will be complete.
154 The development of DNSSEC in dnsmasq was started by
155 Giovanni Bajo, to whom huge thanks are owed. It has been
156 supported by Comcast, whose techfund grant has allowed for
157 an invaluable period of full-time work to get it to
160 Add --rev-server. Thanks to Dave Taht for suggesting this.
162 Add --servers-file. Allows dynamic update of upstream servers
163 full access to configuration.
165 Add --local-service. Accept DNS queries only from hosts
166 whose address is on a local subnet, ie a subnet for which
167 an interface exists on the server. This option
168 only has effect if there are no --interface --except-interface,
169 --listen-address or --auth-server options. It is intended
170 to be set as a default on installation, to allow
171 unconfigured installations to be useful but also safe from
172 being used for DNS amplification attacks.
174 Fix crashes in cache_get_cname_target() when dangling CNAMEs
175 encountered. Thanks to Andy and the rt-n56u project for
176 find this and helping to chase it down.
178 Fix wrong RCODE in authoritative DNS replies to PTR queries. The
179 correct answer was included, but the RCODE was set to NXDOMAIN.
180 Thanks to Craig McQueen for spotting this.
182 Make statistics available as DNS queries in the .bind TLD as
183 well as logging them.
187 Use random addresses for DHCPv6 temporary address
188 allocations, instead of algorithmically determined stable
191 Fix bug which meant that the DHCPv6 DUID was not available
192 in DHCP script runs during the lifetime of the dnsmasq
193 process which created the DUID de-novo. Once the DUID was
194 created and stored in the lease file and dnsmasq
195 restarted, this bug disappeared.
197 Fix bug introduced in 2.67 which could result in erroneous
198 NXDOMAIN returns to CNAME queries.
200 Fix build failures on MacOS X and openBSD.
202 Allow subnet specifications in --auth-zone to be interface
203 names as well as address literals. This makes it possible
204 to configure authoritative DNS when local address ranges
205 are dynamic and works much better than the previous
206 work-around which exempted contructed DHCP ranges from the
207 IP address filtering. As a consequence, that work-around
208 is removed. Under certain circumstances, this change wil
209 break existing configuration: if you're relying on the
210 contructed-range exception, you need to change --auth-zone
211 to specify the same interface as is used to construct your
212 DHCP ranges, probably with a trailing "/6" like this:
213 --auth-zone=example.com,eth0/6 to limit the addresses to
214 IPv6 addresses of eth0.
216 Fix problems when advertising deleted IPv6 prefixes. If
217 the prefix is deleted (rather than replaced), it doesn't
218 get advertised with zero preferred time. Thanks to Tsachi
221 Fix segfault with some locally configured CNAMEs. Thanks
222 to Andrew Childs for spotting the problem.
224 Fix memory leak on re-reading /etc/hosts and friends,
227 Check the arrival interface of incoming DNS and TFTP
228 requests via IPv6, even in --bind-interfaces mode. This
229 isn't possible for IPv4 and can generate scary warnings,
230 but as it's always possible for IPv6 (the API always
231 exists) then we should do it always.
233 Tweak the rules on prefix-lengths in --dhcp-range for
234 IPv6. The new rule is that the specified prefix length
235 must be larger than or equal to the prefix length of the
236 corresponding address on the local interface.
240 Fix crash if upstream server returns SERVFAIL when
241 --conntrack in use. Thanks to Giacomo Tazzari for finding
242 this and supplying the patch.
244 Repair regression in 2.64. That release stopped sending
245 lease-time information in the reply to DHCPINFORM
246 requests, on the correct grounds that it was a standards
247 violation. However, this broke the dnsmasq-specific
248 dhcp_lease_time utility. Now, DHCPINFORM returns
249 lease-time only if it's specifically requested
250 (maintaining standards) and the dhcp_lease_time utility
251 has been taught to ask for it (restoring functionality).
253 Fix --dhcp-match, --dhcp-vendorclass and --dhcp-userclass
254 to work with BOOTP and well as DHCP. Thanks to Peter
255 Korsgaard for spotting the problem.
257 Add --synth-domain. Thanks to Vishvananda Ishaya for
260 Fix failure to compile ipset.c if old kernel headers are
261 in use. Thanks to Eugene Rudoy for pointing this out.
263 Handle IPv4 interface-address labels in Linux. These are
264 often used to emulate the old IP-alias addresses. Before,
265 using --interface=eth0 would service all the addresses of
266 eth0, including ones configured as aliases, which appear
267 in ifconfig as eth0:0. Now, only addresses with the label
268 eth0 are active. This is not backwards compatible: if you
269 want to continue to bind the aliases too, you need to add
270 eg. --interface=eth0:0 to the config.
272 Fix "failed to set SO_BINDTODEVICE on DHCP socket: Socket
273 operation on non-socket" error on startup with
274 configurations which have exactly one --interface option
275 and do RA but _not_ DHCPv6. Thanks to Trever Adams for the
278 Generalise --interface-name to cope with IPv6 addresses
279 and multiple addresses per interface per address family.
281 Fix option parsing for --dhcp-host, which was generating a
282 spurious error when all seven possible items were
283 included. Thanks to Zhiqiang Wang for the bug report.
285 Remove restriction on prefix-length in --auth-zone. Thanks
286 to Toke Hoiland-Jorgensen for suggesting this.
288 Log when the maximum number of concurrent DNS queries is
289 reached. Thanks to Marcelo Salhab Brogliato for the patch.
291 If wildcards are used in --interface, don't assume that
292 there will only ever be one available interface for DHCP
293 just because there is one at start-up. More may appear, so
294 we can't use SO_BINDTODEVICE. Thanks to Natrio for the bug
297 Increase timeout/number of retries in TFTP to accomodate
298 AudioCodes Voice Gateways doing streaming writes to flash.
299 Thanks to Damian Kaczkowski for spotting the problem.
301 Fix crash with empty DHCP string options when adding zero
302 terminator. Thanks to Patrick McLean for the bug report.
304 Allow hostnames to start with a number, as allowed in
305 RFC-1123. Thanks to Kyle Mestery for the patch.
307 Fixes to DHCP FQDN option handling: don't terminate FQDN
308 if domain not known and allow a FQDN option with blank
309 name to request that a FQDN option is returned in the
310 reply. Thanks to Roy Marples for the patch.
312 Make --clear-on-reload apply to setting upstream servers
315 When the address which triggered the construction of an
316 advertised IPv6 prefix disappears, continue to advertise
317 the prefix for up to 2 hours, with the preferred lifetime
318 set to zero. This satisfies RFC 6204 4.3 L-13 and makes
319 things work better if a prefix disappears without being
320 deprecated first. Thanks to Uwe Schindler for persuasively
323 Fix MAC address enumeration on *BSD. Thanks to Brad Smith
326 Support RFC-4242 information-refresh-time options in the
327 reply to DHCPv6 information-request. The lease time of the
328 smallest valid dhcp-range is sent. Thanks to Uwe Schindler
331 Make --listen-address higher priority than --except-interface
332 in all circumstances. Thanks to Thomas Hood for the bugreport.
334 Provide independent control over which interfaces get TFTP
335 service. If enable-tftp is given a list of interfaces, then TFTP
336 is provided on those. Without the list, the previous behaviour
337 (provide TFTP to the same interfaces we provide DHCP to)
338 is retained. Thanks to Lonnie Abelbeck for the suggestion.
340 Add --dhcp-relay config option. Many thanks to vtsl.net
341 for sponsoring this development.
343 Fix crash with empty tag: in --dhcp-range. Thanks to
344 Kaspar Schleiser for the bug report.
346 Add "baseline" and "bloatcheck" makefile targets, for
347 revealing size changes during development. Thanks to
348 Vladislav Grishenko for the patch.
350 Cope with DHCPv6 clients which send REQUESTs without
351 address options - treat them as SOLICIT with rapid commit.
353 Support identification of clients by MAC address in
354 DHCPv6. When using a relay, the relay must support RFC
355 6939 for this to work. It always works for directly
356 connected clients. Thanks to Vladislav Grishenko
357 for prompting this feature.
359 Remove the rule for constructed DHCP ranges that the local
360 address must be either the first or last address in the
361 range. This was originally to avoid SLAAC addresses, but
362 we now explicitly autoconfig and privacy addresses instead.
364 Update Polish translation. Thanks to Jan Psota.
366 Fix problem in DHCPv6 vendorclass/userclass matching
367 code. Thanks to Tanguy Bouzeloc for the patch.
369 Update Spanish transalation. Thanks to Vicente Soriano.
371 Add --ra-param option. Thanks to Vladislav Grishenko for
374 Add --add-subnet configuration, to tell upstream DNS
375 servers where the original client is. Thanks to DNSthingy
376 for sponsoring this feature.
378 Add --quiet-dhcp, --quiet-dhcp6 and --quiet-ra. Thanks to
379 Kevin Darbyshire-Bryant for the initial patch.
381 Allow A/AAAA records created by --interface-name to be the
382 target of --cname. Thanks to Hadmut Danisch for the
385 Avoid treating a --dhcp-host which has an IPv6 address
386 as eligable for use with DHCPv4 on the grounds that it has
387 no address, and vice-versa. Thanks to Yury Konovalov for
388 spotting the problem.
390 Do a better job caching dangling CNAMEs. Thanks to Yves
391 Dorfsman for spotting the problem.
395 Add the ability to act as an authoritative DNS
396 server. Dnsmasq can now answer queries from the wider 'net
397 with local data, as long as the correct NS records are set
398 up. Only local data is provided, to avoid creating an open
399 DNS relay. Zone transfer is supported, to allow secondary
400 servers to be configured.
402 Add "constructed DHCP ranges" for DHCPv6. This is intended
403 for IPv6 routers which get prefixes dynamically via prefix
404 delegation. With suitable configuration, stateful DHCPv6
405 and RA can happen automatically as prefixes are delegated
406 and then deprecated, without having to re-write the
407 dnsmasq configuration file or restart the daemon. Thanks to
408 Steven Barth for extensive testing and development work on
411 Fix crash on startup on Solaris 11. Regression probably
412 introduced in 2.61. Thanks to Geoff Johnstone for the
415 Add code to make behaviour for TCP DNS requests that same
416 as for UDP requests, when a request arrives for an allowed
417 address, but via a banned interface. This change is only
418 active on Linux, since the relevant API is missing (AFAIK)
419 on other platforms. Many thanks to Tomas Hozza for
420 spotting the problem, and doing invaluable discovery of
421 the obscure and undocumented API required for the solution.
423 Don't send the default DHCP option advertising dnsmasq as
424 the local DNS server if dnsmasq is configured to not act
425 as DNS server, or it's configured to a non-standard port.
427 Add DNSMASQ_CIRCUIT_ID, DNSMASQ_SUBCRIBER_ID,
428 DNSMASQ_REMOTE_ID variables to the environment of the
429 lease-change script (and the corresponding Lua). These hold
430 information inserted into the DHCP request by a DHCP relay
431 agent. Thanks to Lakefield Communications for providing a
432 bounty for this addition.
434 Fixed crash, introduced in 2.64, whilst handling DHCPv6
435 information-requests with some common configurations.
436 Thanks to Robert M. Albrecht for the bug report and
439 Add --ipset option. Thanks to Jason A. Donenfeld for the
442 Don't erroneously reject some option names in --dhcp-match
443 options. Thanks to Benedikt Hochstrasser for the bug report.
445 Allow a trailing '*' wildcard in all interface-name
446 configurations. Thanks to Christian Parpart for the patch.
448 Handle the situation where libc headers define
449 SO_REUSEPORT, but the kernel in use doesn't, to cope with
450 the introduction of this option to Linux. Thanks to Rich
451 Felker for the bug report.
453 Update Polish translation. Thanks to Jan Psota.
455 Fix crash if the configured DHCP lease limit is
456 reached. Regression occurred in 2.61. Thanks to Tsachi for
459 Update the French translation. Thanks to Gildas le Nadan.
463 Fix regression which broke forwarding of queries sent via
464 TCP which are not for A and AAAA and which were directed to
465 non-default servers. Thanks to Niax for the bug report.
467 Fix failure to build with DHCP support excluded. Thanks to
468 Gustavo Zacarias for the patch.
470 Fix nasty regression in 2.64 which completely broke cacheing.
474 Handle DHCP FQDN options with all flag bits zero and
475 --dhcp-client-update set. Thanks to Bernd Krumbroeck for
476 spotting the problem.
478 Finesse the check for /etc/hosts names which conflict with
479 DHCP names. Previously a name/address pair in /etc/hosts
480 which didn't match the name/address of a DHCP lease would
481 generate a warning. Now that only happesn if there is not
482 also a match. This allows multiple addresses for a name in
483 /etc/hosts with one of them assigned via DHCP.
485 Fix broken vendor-option processing for BOOTP. Thanks to
486 Hans-Joachim Baader for the bug report.
488 Don't report spurious netlink errors, regression in
489 2.63. Thanks to Vladislav Grishenko for the patch.
491 Flag DHCP or DHCPv6 in starup logging. Thanks to
492 Vladislav Grishenko for the patch.
494 Add SetServersEx method in DBus interface. Thanks to Dan
495 Williams for the patch.
497 Add SetDomainServers method in DBus interface. Thanks to
498 Roy Marples for the patch.
500 Fix build with later Lua libraries. Thansk to Cristian
501 Rodriguez for the patch.
503 Add --max-cache-ttl option. Thanks to Dennis Kaarsemaker
506 Fix breakage of --host-record parsing, resulting in
507 infinte loop at startup. Regression in 2.63. Thanks to
508 Haim Gelfenbeyn for spotting this.
510 Set SO_REUSEADDRESS and SO_V6ONLY options on the DHCPv6
511 socket, this allows multiple instances of dnsmasq on a
512 single machine, in the same way as for DHCPv4. Thanks to
513 Gene Czarcinski and Vladislav Grishenko for work on this.
515 Fix DHCPv6 to do access control correctly when it's
516 configured with --listen-address. Thanks to
517 Gene Czarcinski for sorting this out.
519 Add a "wildcard" dhcp-range which works for any IPv6
520 subnet, --dhcp-range=::,static Useful for Stateless
521 DHCPv6. Thanks to Vladislav Grishenko for the patch.
523 Don't include lease-time in DHCPACK replies to DHCPINFORM
524 queries, since RFC-2131 says we shouldn't. Thanks to
525 Wouter Ibens for pointing this out.
527 Makefile tweak to do dependency checking on header files.
528 Thanks to Johan Peeters for the patch.
530 Check interface for outgoing unsolicited router
531 advertisements, rather than relying on interface address
532 configuration. Thanks to Gene Czarinski for the patch.
534 Handle better attempts to transmit on interfaces which are
535 still doing DAD, and specifically do not just transmit
536 without setting source address and interface, since this
537 can cause very puzzling effects when a router
538 advertisement goes astray. Thanks again to Gene Czarinski.
540 Get RA timers right when there is more than one
541 dhcp-range on a subnet.
545 Do duplicate dhcp-host address check in --test mode.
547 Check that tftp-root directories are accessible before
548 start-up. Thanks to Daniel Veillard for the initial patch.
550 Allow more than one --tfp-root flag. The per-interface
551 stuff is pointless without that.
553 Add --bind-dynamic. A hybrid mode between the default and
554 --bind-interfaces which copes with dynamically created
557 A couple of fixes to the build system for Android. Thanks
558 to Metin Kaya for the patches.
560 Remove the interface:<interface> argument in --dhcp-range, and
561 the interface argument to --enable-tftp. These were a
562 still-born attempt to allow automatic isolated
563 configuration by libvirt, but have never (to my knowledge)
564 been used, had very strange semantics, and have been
565 superceded by other mechanisms.
567 Fixed bug logging filenames when duplicate dhcp-host
568 addresses are found. Thanks to John Hanks for the patch.
570 Fix regression in 2.61 which broke caching of CNAME
571 chains. Thanks to Atul Gupta for the bug report.
573 Allow the target of a --cname flag to be another --cname.
575 Teach DHCPv6 about the RFC 4242 information-refresh-time
576 option, and add parsing if the minutes, hours and days
577 format for options. Thanks to Francois-Xavier Le Bail for
580 Allow "w" (for week) as multiplier in lease times, as well
581 as seconds, minutes, hours and days. Álvaro Gámez Machado
582 spotted the ommission.
584 Update French translation. Thanks to Gildas Le Nadan.
586 Allow a DBus service name to be given with --enable-dbus
587 which overrides the default,
588 uk.org.thekelleys.dnsmasq. Thanks to Mathieu
589 Trudel-Lapierre for the patch.
591 Set the "prefix on-link" bit in Router
592 Advertisements. Thanks to Gui Iribarren for the patch.
596 Update German translation. Thanks to Conrad Kostecki.
598 Cope with router-solict packets wich don't have a valid
599 source address. Thanks to Vladislav Grishenko for the patch.
601 Fixed bug which caused missing periodic router
602 advertisements with some configurations. Thanks to
603 Vladislav Grishenko for the patch.
605 Fixed bug which broke DHCPv6/RA with prefix lengths
606 which are not divisible by 8. Thanks to Andre Coetzee
609 Fix non-response to router-solicitations when
610 router-advertisement configured, but DHCPv6 not
611 configured. Thanks to Marien Zwart for the patch.
613 Add --dns-rr, to allow arbitrary DNS resource records.
615 Fixed bug which broke RA scheduling when an interface had
616 two addresses in the same network. Thanks to Jim Bos for
617 his help nailing this.
620 Re-write interface discovery code on *BSD to use
621 getifaddrs. This is more portable, more straightforward,
622 and allows us to find the prefix length for IPv6
625 Add ra-names, ra-stateless and slaac keywords for DHCPv6.
626 Dnsmasq can now synthesise AAAA records for dual-stack
627 hosts which get IPv6 addresses via SLAAC. It is also now
628 possible to use SLAAC and stateless DHCPv6, and to
629 tell clients to use SLAAC addresses as well as DHCP ones.
630 Thanks to Dave Taht for help with this.
632 Add --dhcp-duid to allow DUID-EN uids to be used.
634 Explicity send DHCPv6 replies to the correct port, instead
635 of relying on clients to send requests with the correct
636 source address, since at least one client in the wild gets
637 this wrong. Thanks to Conrad Kostecki for help tracking
640 Send a preference value of 255 in DHCPv6 replies when
641 --dhcp-authoritative is in effect. This tells clients not
642 to wait around for other DHCP servers.
644 Better logging of DHCPv6 options.
646 Add --host-record. Thanks to Rob Zwissler for the
649 Invoke the DHCP script with action "tftp" when a TFTP file
650 transfer completes. The size of the file, address to which
651 it was sent and complete pathname are supplied. Note that
652 version 2.60 introduced some script incompatibilties
653 associated with DHCPv6, and this is a further change. To
654 be safe, scripts should ignore unknown actions, and if
655 not IPv6-aware, should exit if the environment
656 variable DNSMASQ_IAID is set. The use-case for this is
657 to track netboot/install. Suggestion from Shantanu
660 Update contrib/port-forward/dnsmasq-portforward to reflect
663 Set the environment variable DNSMASQ_LOG_DHCP when running
664 the script id --log-dhcp is in effect, so that script can
665 taylor their logging verbosity. Suggestion from Malte
668 Arrange that addresses specified with --listen-address
669 work even if there is no interface carrying the
670 address. This is chiefly useful for IPv4 loopback
671 addresses, where any address in 127.0.0.0/8 is a valid
672 loopback address, but normally only 127.0.0.1 appears on
673 the lo interface. Thanks to Mathieu Trudel-Lapierre for
674 the idea and initial patch.
676 Fix crash, introduced in 2.60, when a DHCPINFORM is
677 received from a network which has no valid dhcp-range.
678 Thanks to Stephane Glondu for the bug report.
680 Add a new DHCP lease time keyword, "deprecated" for
681 --dhcp-range. This is only valid for IPv6, and sets the
682 preffered lease time for both DHCP and RA to zero. The
683 effect is that clients can continue to use the address
684 for existing connections, but new connections will use
685 other addresses, if they exist. This makes hitless
686 renumbering at least possible.
688 Fix bug in address6_available() which caused DHCPv6 lease
689 aquisition to fail if more than one dhcp-range in use.
691 Provide RDNSS and DNSSL data in router advertisements,
692 using the settings provided for DHCP options
693 option6:domain-search and option6:dns-server.
695 Tweak logo/favicon.ico to add some transparency. Thanks to
696 SamLT for work on this.
698 Don't cache data from non-recursive nameservers, since it
699 may erroneously look like a valid CNAME to a non-exitant
700 name. Thanks to Ben Winslow for finding this.
702 Call SO_BINDTODEVICE on the DHCP socket(s) when doing DHCP
703 on exactly one interface and --bind-interfaces is set. This
704 makes the OpenStack use-case of one dnsmasq per virtual
705 interface work. This is only available on Linux; it's not
706 supported on other platforms. Thanks to Vishvananda Ishaya
707 and the OpenStack team for the suggestion.
709 Updated French translation. Thanks to Gildas Le Nadan.
711 Give correct from-cache answers to explict CNAME queries.
712 Thanks to Rob Zwissler for spotting this.
714 Add --tftp-lowercase option. Thanks to Oliver Rath for the
717 Ensure that the DBus DhcpLeaseUpdated events are generated
718 when a lease goes through INIT_REBOOT state, even if the
719 dhcp-script is not in use. Thanks to Antoaneta-Ecaterina
722 Fix failure of TFTP over IPv4 on OpenBSD platform. Thanks
723 to Brad Smith for spotting this.
727 Fix compilation problem in Mac OS X Lion. Thanks to Olaf
728 Flebbe for the patch.
730 Fix DHCP when using --listen-address with an IP address
731 which is not the primary address of an interface.
733 Add --dhcp-client-update option.
735 Add Lua integration. Dnsmasq can now execute a DHCP
736 lease-change script written in Lua. This needs to be
737 enabled at compile time by setting HAVE_LUASCRIPT in
738 src/config.h or running "make COPTS=-DHAVE_LUASCRIPT"
739 Thanks to Jan-Piet Mens for the idea and proof-of-concept
742 Tidied src/config.h to distinguish between
743 platform-dependent compile-time options which are selected
744 automatically, and builder-selectable compile time
745 options. Document the latter better, and describe how to
746 set them from the make command line.
748 Tidied up IPPROTO_IP/SOL_IP (and IPv6 equivalent)
749 confusion. IPPROTO_IP works everywhere now.
751 Set TOS on DHCP sockets, this improves things on busy
752 wireless networks. Thanks to Dave Taht for the patch.
754 Determine VERSION automatically based on git magic:
755 release tags or hash values.
757 Improve start-up speed when reading large hosts files
758 containing many distinct addresses.
760 Fix problem if dnsmasq is started without the stdin,
761 stdout and stderr file descriptors open. This can manifest
762 itself as 100% CPU use. Thanks to Chris Moore for finding
765 Fix shell-scripting bug in bld/pkg-wrapper. Thanks to
766 Mark Mitchell for the patch.
768 Allow the TFP server or boot server in --pxe-service, to
769 be a domain name instead of an IP address. This allows for
770 round-robin to multiple servers, in the same way as
771 --dhcp-boot. A good suggestion from Cristiano Cumer.
773 Support BUILDDIR variable in the Makefile. Allows builds
774 for multiple archs from the same source tree with eg.
775 make BUILDDIR=linux (relative to dnsmasq tree)
776 make BUILDDIR=/tmp/openbsd (absolute path)
777 If BUILDDIR is not set, compilation happens in the src
778 directory, as before. Suggestion from Mark Mitchell.
780 Support DHCPv6. Support is there for the sort of things
781 the existing v4 server does, including tags, options,
782 static addresses and relay support. Missing is prefix
783 delegation, which is probably not required in the dnsmasq
784 niche, and an easy way to accept prefix delegations from
785 an upstream DHCPv6 server, which is. Future plans include
786 support for DHCPv6 router option and MAC address option
787 (to make selecting clients by MAC address work like IPv4).
788 These will be added as the standards mature.
789 This code has been tested, but this is the first release,
790 so don't bet the farm on it just yet. Many thanks to all
791 testers who have got it this far.
793 Support IPv6 router advertisements. This is a
794 simple-minded implementation, aimed at providing the
795 vestigial RA needed to go alongside IPv6. Is picks up
796 configuration from the DHCPv6 conf, and should just need
797 enabling with --enable-ra.
799 Fix long-standing wrinkle with --localise-queries that
800 could result in wrong answers when DNS packets arrive
801 via an interface other than the expected one. Thanks to
802 Lorenzo Milesi and John Hanks for spotting this one.
804 Update French translation. Thanks to Gildas Le Nadan.
806 Update Polish translation. Thanks to Jan Psota.
810 Fix regression in 2.58 which caused failure to start up
811 with some combinations of dnsmasq config and IPv6 kernel
812 network config. Thanks to Brielle Bruns for the bug
815 Improve dnsmasq's behaviour when network interfaces are
816 still doing duplicate address detection (DAD). Previously,
817 dnsmasq would wait up to 20 seconds at start-up for the
818 DAD state to terminate. This is broken for bridge
819 interfaces on recent Linux kernels, which don't start DAD
820 until the bridge comes up, and so can take arbitrary
821 time. The new behaviour lets dnsmasq poll for an arbitrary
822 time whilst providing service on other interfaces. Thanks
823 to Stephen Hemminger for pointing out the problem.
827 Provide a definition of the SA_SIZE macro where it's
828 missing. Fixes build failure on openBSD.
830 Don't include a zero terminator at the end of messages
831 sent to /dev/log when /dev/log is a datagram socket.
832 Thanks to Didier Rabound for spotting the problem.
834 Add --dhcp-sequential-ip flag, to force allocation of IP
835 addresses in ascending order. Note that the default
836 pseudo-random mode is in general better but some
837 server-deployment applications need this.
839 Fix problem where a server-id of 0.0.0.0 is sent to a
840 client when a dhcp-relay is in use if a client renews a
841 lease after dnsmasq restart and before any clients on the
842 subnet get a new lease. Thanks to Mike Ruiz for assistance
843 in chasing this one down.
845 Don't return NXDOMAIN to an AAAA query if we have CNAME
846 which points to an A record only: NODATA is the correct
847 reply in this case. Thanks to Tom Fernandes for spotting
850 Relax the need to supply a netmask in --dhcp-range for
851 networks which use a DHCP relay. Whilst this is still
852 desireable, in the absence of a netmask dnsmasq will use
853 a default based on the class (A, B, or C) of the address.
854 This should at least remove a cause of mysterious failure
855 for people using RFC1918 addresses and relays.
857 Add support for Linux conntrack connection marking. If
858 enabled with --conntrack, the connection mark for incoming
859 DNS queries will be copied to the outgoing connections
860 used to answer those queries. This allows clever firewall
861 and accounting stuff. Only available if dnsmasq is
862 compiled with HAVE_CONNTRACK and adds a dependency on
863 libnetfilter-conntrack. Thanks to Ed Wildgoose for the
864 initial idea, testing and sponsorship of this function.
866 Provide a sane error message when someone attempts to
867 match a tag in --dhcp-host.
869 Tweak the behaviour of --domain-needed, to avoid problems
870 with recursive nameservers downstream of dnsmasq. The new
871 behaviour only stops A and AAAA queries, and returns
872 NODATA rather than NXDOMAIN replies.
874 Efficiency fix for very large DHCP configurations, thanks
875 to James Gartrell and Mike Ruiz for help with this.
877 Allow the TFTP-server address in --dhcp-boot to be a
878 domain-name which is looked up in /etc/hosts. This can
879 give multiple IP addresses which are used round-robin,
880 thus doing TFTP server load-balancing. Thanks to Sushil
881 Agrawal for the patch.
883 When two tagged dhcp-options for a particular option
884 number are both valid, use the one which is valid without
885 a tag from the dhcp-range. Allows overriding of the value
886 of a DHCP option for a particular host as well as
887 per-network values. So
888 --dhcp-range=set:interface1,......
889 --dhcp-host=set:myhost,.....
890 --dhcp-option=tag:interface1,option:nis-domain,"domain1"
891 --dhcp-option=tag:myhost,option:nis-domain,"domain2"
892 will set the NIS-domain to domain1 for hosts in the range, but
893 override that to domain2 for a particular host.
895 Fix bug which resulted in truncated files and timeouts for
896 some TFTP transfers. The bug only occurs with netascii
897 transfers and needs an unfortunate relationship between
898 file size, blocksize and the number of newlines in the
899 last block before it manifests itself. Many thanks to
900 Alkis Georgopoulos for spotting the problem and providing
901 a comprehensive test-case.
903 Fix regression in TFTP server on *BSD platforms introduced
904 in version 2.56, due to confusion with sockaddr
905 length. Many thanks to Loic Pefferkorn for finding this.
907 Support scope-ids in IPv6 addresses of nameservers from
908 /etc/resolv.conf and in --server options. Eg
909 nameserver fe80::202:a412:4512:7bbf%eth0 or
910 server=fe80::202:a412:4512:7bbf%eth0. Thanks to
911 Michael Stapelberg for the suggestion.
913 Update Polish translation, thanks to Jan Psota.
915 Update French translation. Thanks to Gildas Le Nadan.
919 Add patches to allow build under Android.
921 Provide our own header for the DNS protocol, rather than
922 relying on arpa/nameser.h. This has proved more or less
923 defective over the years and the final straw is that it's
924 effectively empty on Android.
926 Fix regression in 2.56 which caused hex constants in
927 configuration to be rejected if they contain the '*'
930 Correct wrong casts of arguments to ctype.h functions,
931 isdigit(), isxdigit() etc. Thanks to Matthias Andree for
934 Allow build with IDN support independently from i18n.
935 IDN support continues to be included automatically
936 when i18n is included.
937 'make COPTS=-DHAVE_IDN' is the magic incantation.
939 Modify check on extraneous command line junk (added in
940 2.56) so that it doesn't complain about extra _empty_
941 arguments. Otherwise this breaks libvirt.
945 Add a patch to allow dnsmasq to get interface names right in a
946 Solaris zone. Thanks to Dj Padzensky for this.
948 Improve data-type parsing heuristics so that
949 --dhcp-option=option:domain-search,.
950 treats the value as a string and not an IP address.
951 Thanks to Clemens Fischer for spotting that.
953 Add IPv6 support to the TFTP server. Many thanks to Jan
954 'RedBully' Seiffert for the patches.
956 Log DNS queries at level LOG_INFO, rather then
957 LOG_DEBUG. This makes things consistent with DHCP
958 logging. Thanks to Adam Pribyl for spotting the problem.
960 Ensure that dnsmasq terminates cleanly when using
961 --syslog-async even if it cannot make a connection to the
964 Add --add-mac option. This is to support currently
965 experimental DNS filtering facilities. Thanks to Benjamin
966 Petrin for the orignal patch.
968 Fix bug which meant that tags were ignored in dhcp-range
969 configuration specifying PXE-proxy service. Thanks to
970 Cristiano Cumer for spotting this.
972 Raise an error if there is extra junk, not part of an
973 option, on the command line.
975 Flag a couple of log messages in cache.c as coming from
976 the DHCP subsystem. Thanks to Olaf Westrik for the patch.
978 Omit timestamps from logs when a) logging to stderr and
979 b) --keep-in-forground is set. The logging facility on the
980 other end of stderr can be assumned to supply them. Thanks
981 to John Hallam for the patch.
983 Don't complain about strings longer than 255 characters in
984 --txt-record, just split the long strings into 255
985 character chunks instead.
987 Fix crash on double-free. This bug can only happen when
988 dhcp-script is in use and then only in rare circumstances
989 triggered by high DHCP transaction rate and a slow
990 script. Thanks to Ferenc Wagner for finding the problem.
992 Only log that a file has been sent by TFTP after the
993 transfer has completed succesfully.
995 A good suggestion from Ferenc Wagner: extend
996 the --domain option to allow this sort of thing:
997 --domain=thekelleys.org.uk,192.168.0.0/24,local
998 which automatically creates
999 --local=/thekelleys.org.uk/
1000 --local=/0.168.192.in-addr.arpa/
1002 Tighten up syntax checking of hex contants in the config
1003 file. Thanks to Fred Damen for spotting this.
1005 Add dnsmasq logo/icon, contributed by Justin Swift. Many
1008 Never cache DNS replies which have the 'cd' bit set, or
1009 which result from queries forwarded with the 'cd' bit
1010 set. The 'cd' bit instructs a DNSSEC validating server
1011 upstream to ignore signature failures and return replies
1012 anyway. Without this change it's possible to pollute the
1013 dnsmasq cache with bad data by making a query with the
1014 'cd' bit set and subsequent queries would return this data
1015 without its being marked as suspect. Thanks to Anders
1016 Kaseorg for pointing out this problem.
1018 Add --proxy-dnssec flag, for compliance with RFC
1019 4035. Dnsmasq will now clear the 'ad' bit in answers returned
1020 from upstream validating nameservers unless this option is
1023 Allow a filename of "-" for --conf-file to read
1024 stdin. Suggestion from Timothy Redaelli.
1026 Rotate the order of SRV records in replies, to provide
1027 round-robin load balancing when all the priorities are
1028 equal. Thanks to Peter McKinney for the suggestion.
1031 contrib/MacOSX-launchd/uk.org.thekelleys.dnsmasq.plist
1032 so that it doesn't log all queries to a file by
1033 default. Thanks again to Peter McKinney.
1035 By default, setting an IPv4 address for a domain but not
1036 an IPv6 address causes dnsmasq to return
1037 an NODATA reply for IPv6 (or vice-versa). So
1038 --address=/google.com/1.2.3.4 stops IPv6 queries for
1039 *google.com from being forwarded. Make it possible to
1040 override this behaviour by defining the sematics if the
1041 same domain appears in both --server and --address.
1042 In that case, the --address has priority for the address
1043 family in which is appears, but the --server has priority
1044 of the address family which doesn't appear in --adddress
1046 --address=/google.com/1.2.3.4
1047 --server=/google.com/#
1048 will return 1.2.3.4 for IPv4 queries for *.google.com but
1049 forward IPv6 queries to the normal upstream nameserver.
1050 Similarly when setting an IPv6 address
1051 only this will allow forwarding of IPv4 queries. Thanks to
1052 William for pointing out the need for this.
1054 Allow more than one --dhcp-optsfile and --dhcp-hostsfile
1055 and make them understand directories as arguments in the
1056 same way as --addn-hosts. Suggestion from John Hanks.
1058 Ignore rebinding requests for leases we don't know
1059 about. Rebind is broadcast, so we might get to overhear a
1060 request meant for another DHCP server. NAKing this is
1061 wrong. Thanks to Brad D'Hondt for assistance with this.
1063 Fix cosmetic bug which produced strange output when
1064 dumping cache statistics with some configurations. Thanks
1065 to Fedor Kozhevnikov for spotting this.
1069 Fix crash when /etc/ethers is in use. Thanks to
1070 Gianluigi Tiesi for finding this.
1072 Fix crash in netlink_multicast(). Thanks to Arno Wald for
1075 Allow the empty domain "." in dhcp domain-search (119)
1080 There is no version 2.54 to avoid confusion with 2.53,
1081 which incorrectly identifies itself as 2.54.
1085 Fix failure to compile on Debian/kFreeBSD. Thanks to
1086 Axel Beckert and Petr Salinger.
1088 Fix code to avoid scary strict-aliasing warnings
1089 generated by gcc 4.4.
1091 Added FAQ entry warning about DHCP failures with Vista
1092 when firewalls block 255.255.255.255.
1094 Fixed bug which caused bad things to happen if a
1095 resolv.conf file which exists is subsequently removed.
1096 Thanks to Nikolai Saoukh for the patch.
1098 Rationalised the DHCP tag system. Every configuration item
1099 which can set a tag does so by adding "set:<tag>" and
1100 every configuration item which is conditional on a tag is
1101 made so by "tag:<tag>". The NOT operator changes to '!',
1102 which is a bit more intuitive too. Dhcp-host directives
1103 can set more than one tag now. The old '#' NOT,
1104 "net:" prefix and no-prefixes are still honoured, so
1105 no existing config file needs to be changed, but
1106 the documentation and new-style config files should be
1107 much less confusing.
1109 Added --tag-if to allow boolean operations on tags.
1110 This allows complicated logic to be clearer and more
1111 general. A great suggestion from Richard Voigt.
1113 Add broadcast/unicast information to DHCP logging.
1115 Allow --dhcp-broadcast to be unconditional.
1117 Fixed incorrect behaviour with NOT <tag> conditionals in
1118 dhcp-options. Thanks to Max Turkewitz for assistance
1121 If we send vendor-class encapsulated options based on the
1122 vendor-class supplied by the client, and no explicit
1123 vendor-class option is given, echo back the vendor-class
1126 Fix bug which stopped dnsmasq from matching both a
1127 circuitid and a remoteid. Thanks to Ignacio Bravo for
1130 Add --dhcp-proxy, which makes it possible to configure
1131 dnsmasq to use a DHCP relay agent as a full proxy, with
1132 all DHCP messages passing through the proxy. This is
1133 useful if the relay adds extra information to the packets
1134 it forwards, but cannot be configured with the RFC 5107
1135 server-override option.
1137 Added interface:<iface name> part to dhcp-range. The
1138 semantics of this are very odd at first sight, but it
1139 allows a single line of the form
1140 dhcp-range=interface:virt0,192.168.0.4,192.168.0.200
1141 to be added to dnsmasq configuration which then supplies
1142 DHCP and DNS services to that interface, without affecting
1143 what services are supplied to other interfaces and
1144 irrespective of the existance or lack of
1145 interface=<interface>
1146 lines elsewhere in the dnsmasq configuration. The idea is
1147 that such a line can be added automatically by libvirt
1148 or equivalent systems, without disturbing any manual
1151 Similarly to the above, allow --enable-tftp=<interface>
1153 Allow a TFTP root to be set separately for requests via
1154 different interfaces, --tftp-root=<path>,<interface>
1156 Correctly handle and log clashes between CNAMES and
1157 DNS names being given to DHCP leases. This fixes a bug
1158 which caused nonsense IP addresses to be logged. Thanks to
1159 Sergei Zhirikov for finding and analysing the problem.
1161 Tweak flush_log so as to avoid leaving the log
1162 file in non-blocking mode. O_NONBLOCK is a property of the
1163 file, not the process/descriptor.
1165 Fix contrib/Solaris10/create_package
1166 (/usr/man -> /usr/share/man) Thanks to Vita Batrla.
1168 Fix a problem where, if a client got a lease, then went
1169 to another subnet and got another lease, then moved back,
1170 it couldn't resume the old lease, but would instead get
1171 a new address. Thanks to Leonardo Rodrigues for spotting
1172 this and testing the fix.
1174 Fix weird bug which sometimes omitted certain characters
1175 from the start of quoted strings in dhcp-options. Thanks
1176 to Dayton Turner for spotting the problem.
1178 Add facility to redirect some domains to the standard
1179 upstream servers: this allows something like
1180 --server=/google.com/1.2.3.4 --server=/www.google.com/#
1181 which will send queries for *.google.com to 1.2.3.4,
1182 except *www.google.com which will be forwarded as usual.
1183 Thanks to AJ Weber for prompting this addition.
1185 Improve the hash-algorithm used to generate IP addresses
1186 from MAC addresses during initial DHCP address
1187 allocation. This improves performance when large numbers
1188 of hosts with similar MAC addresses all try and get an IP
1189 address at the same time. Thanks to Paul Smith for his
1192 Tweak DHCP code so that --bridge-interface can be used to
1193 select which IP alias of an interface should be used for
1194 DHCP purposes on Linux. If eth0 has an alias eth0:dhcp
1195 then adding --bridge-interface=eth0:dhcp,eth0 will use
1196 the address of eth0:dhcp to determine the correct subnet
1197 for DHCP address allocation. Thanks to Pawel Golaszewski
1198 for prompting this and Eric Cooper for further testing.
1200 Add --dhcp-generate-names. Suggestion by Ferenc Wagner.
1202 Tweak DNS server selection algorithm when there is more
1203 than one server available for a domain, eg.
1204 --server=/mydomain/1.1.1.1
1205 --server=/mydomain/2.2.2.2
1206 Thanks to Alberto Cuesta-Canada for spotting a weakness
1209 Add --max-ttl. Thanks to Fredrik Ringertz for the patch.
1211 Allow --log-facility=- to force all logging to
1212 stderr. Suggestion from Clemens Fischer.
1214 Fix regression which caused configuration like
1215 --address=/.domain.com/1.2.3.4 to be rejected. The dot to the
1216 left of the domain has been implied and not required for a
1217 long time, but it should be accepted for backward
1218 compatibility. Thanks to Andrew Burcin for spotting this.
1220 Add --rebind-domain-ok and --rebind-localhost-ok.
1221 Suggestion from Clemens Fischer.
1223 Log replies to queries of type TXT, when --log-queries
1226 Fix compiler warnings when compiled with -DNO_DHCP. Thanks
1227 to Shantanu Gadgil for the patch.
1229 Updated French translation. Thanks to Gildas Le Nadan.
1231 Updated Polish translation. Thanks to Jan Psota.
1233 Updated German translation. Thanks to Matthias Andree.
1235 Added contrib/static-arp, thanks to Darren Hoo.
1237 Fix corruption of the domain when a name from /etc/hosts
1238 overrides one supplied by a DHCP client. Thanks to Fedor
1239 Kozhevnikov for spotting the problem.
1241 Updated Spanish translation. Thanks to Chris Chatham.
1245 Work around a Linux kernel bug which insists that the
1246 length of the option passed to setsockopt must be at least
1247 sizeof(int) bytes, even if we're calling SO_BINDTODEVICE
1248 and the device name is "lo". Note that this is fixed
1249 in kernel 2.6.31, but the workaround is harmless and
1250 allows earlier kernels to be used. Also fix dnsmasq
1251 bug which reported the wrong address when this failed.
1252 Thanks to Fedor for finding this.
1254 The API for IPv6 PKTINFO changed around Linux kernel
1255 2.6.14. Workaround the case where dnsmasq is compiled
1256 against newer headers, but then run on an old kernel:
1257 necessary for some *WRT distros.
1259 Re-read the set of network interfaces when re-loading
1260 /etc/resolv.conf if --bind-interfaces is not set. This
1261 handles the case that loopback interfaces do not exist
1262 when dnsmasq is first started.
1264 Tweak the PXE code to support port 4011. This should
1265 reduce broadcasts and make things more reliable when other
1266 servers are around. It also improves inter-operability
1267 with certain clients.
1269 Make a pxe-service configuration with no filename or boot
1270 service type legal: this does a local boot. eg.
1271 pxe-service=x86PC, "Local boot"
1273 Be more conservative in detecting "A for A"
1274 queries. Dnsmasq checks if the name in a type=A query looks
1275 like a dotted-quad IP address and answers the query itself
1276 if so, rather than forwarding it. Previously dnsmasq
1277 relied in the library function inet_addr() to convert
1278 addresses, and that will accept some things which are
1279 confusing in this context, like 1.2.3 or even just
1280 1234. Now we only do A for A processing for four decimal
1281 numbers delimited by dots.
1283 A couple of tweaks to fix compilation on Solaris. Thanks
1284 to Joel Macklow for help with this.
1286 Another Solaris compilation tweak, needed for Solaris
1287 2009.06. Thanks to Lee Essen for that.
1289 Added extract packaging stuff from Lee Essen to
1292 Increased the default limit on number of leases to 1000
1293 (from 150). This is mainly a defence against DoS attacks,
1294 and for the average "one for two class C networks"
1295 installation, IP address exhaustion does that just as
1296 well. Making the limit greater than the number of IP
1297 addresses available in such an installation removes a
1298 surprise which otherwise can catch people out.
1300 Removed extraneous trailing space in the value of the
1301 DNSMASQ_TIME_REMAINING DNSMASQ_LEASE_LENGTH and
1302 DNSMASQ_LEASE_EXPIRES environment variables. Thanks to
1303 Gildas Le Nadan for spotting this.
1305 Provide the network-id tags for a DHCP transaction to
1306 the lease-change script in the environment variable
1307 DNSMASQ_TAGS. A good suggestion from Gildas Le Nadan.
1309 Add support for RFC3925 "Vendor-Identifying Vendor
1310 Options". The syntax looks like this:
1311 --dhcp-option=vi-encap:<enterprise number>, .........
1313 Add support to --dhcp-match to allow matching against
1314 RFC3925 "Vendor-Identifying Vendor Classes". The syntax
1316 --dhcp-match=tag,vi-encap<enterprise number>, <value>
1318 Add some application specific code to assist in
1319 implementing the Broadband forum TR069 CPE-WAN
1320 specification. The details are in contrib/CPE-WAN/README
1322 Increase the default DNS packet size limit to 4096, as
1323 recommended by RFC5625 section 4.4.3. This can be
1324 reconfigured using --edns-packet-max if needed. Thanks to
1325 Francis Dupont for pointing this out.
1327 Rewrite query-ids even for TSIG signed packets, since
1328 this is allowed by RFC5625 section 4.5.
1330 Use getopt_long by default on OS X. It has been supported
1331 since version 10.3.0. Thanks to Arek Dreyer for spotting
1334 Added up-to-date startup configuration for MacOSX/launchd
1335 in contrib/MacOSX-launchd. Thanks to Arek Dreyer for
1338 Fix link error when including Dbus but excluding DHCP.
1339 Thanks to Oschtan for the bug report.
1341 Updated French translation. Thanks to Gildas Le Nadan.
1343 Updated Polish translation. Thanks to Jan Psota.
1345 Updated Spanish translation. Thanks to Chris Chatham.
1347 Fixed confusion about domains, when looking up DHCP hosts
1348 in /etc/hosts. This could cause spurious "Ignoring
1349 domain..." messages. Thanks to Fedor Kozhevnikov for
1350 finding and analysing the problem.
1354 Add support for internationalised DNS. Non-ASCII characters
1355 in domain names found in /etc/hosts, /etc/ethers and
1356 /etc/dnsmasq.conf will be correctly handled by translation to
1357 punycode, as specified in RFC3490. This function is only
1358 available if dnsmasq is compiled with internationalisation
1359 support, and adds a dependency on GNU libidn. Without i18n
1360 support, dnsmasq continues to be compilable with just
1361 standard tools. Thanks to Yves Dorfsman for the
1364 Add two more environment variables for lease-change scripts:
1365 First, DNSMASQ_SUPPLIED_HOSTNAME; this is set to the hostname
1366 supplied by a client, even if the actual hostname used is
1367 over-ridden by dhcp-host or dhcp-ignore-names directives.
1368 Also DNSMASQ_RELAY_ADDRESS which gives the address of
1369 a DHCP relay, if used.
1370 Suggestions from Michael Rack.
1372 Fix regression which broke echo of relay-agent
1373 options. Thanks to Michael Rack for spotting this.
1375 Don't treat option 67 as being interchangeable with
1376 dhcp-boot parameters if it's specified as
1379 Make the code to call scripts on lease-change compile-time
1380 optional. It can be switched off by editing src/config.h
1381 or building with "make COPTS=-DNO_SCRIPT".
1383 Make the TFTP server cope with filenames from Windows/DOS
1384 which use '\' as pathname separator. Thanks to Ralf for
1387 Updated Polish translation. Thanks to Jan Psota.
1389 Warn if an IP address is duplicated in /etc/ethers. Thanks
1390 to Felix Schwarz for pointing this out.
1392 Teach --conf-dir to take an option list of file suffices
1393 which will be ignored when scanning the directory. Useful
1394 for backup files etc. Thanks to Helmut Hullen for the
1397 Add new DHCP option named tftpserver-address, which
1398 corresponds to the third argument of dhcp-boot. This
1399 allows the complete functionality of dhcp-boot to be
1400 replicated with dhcp-option. Useful when using
1403 Test which upstream nameserver to use every 10 seconds
1404 or 50 queries and not just when a query times out and
1405 is retried. This should improve performance when there
1406 is a slow nameserver in the list. Thanks to Joe for the
1409 Don't do any PXE processing, even for clients with the
1410 correct vendorclass, unless at least one pxe-prompt or
1411 pxe-service option is given. This stops dnsmasq
1412 interfering with proxy PXE subsystems when it is just
1413 the DHCP server. Thanks to Spencer Clark for spotting this.
1415 Limit the blocksize used for TFTP transfers to a value
1416 which avoids packet fragmentation, based on the MTU of the
1417 local interface. Many netboot ROMs can't cope with
1420 Honour dhcp-ignore configuration for PXE and proxy-PXE
1421 requests. Thanks to Niels Basjes for the bug report.
1423 Updated French translation. Thanks to Gildas Le Nadan.
1427 Fix security problem which allowed any host permitted to
1428 do TFTP to possibly compromise dnsmasq by remote buffer
1429 overflow when TFTP enabled. Thanks to Core Security
1430 Technologies and Iván Arce, Pablo Hernán Jorge, Alejandro
1431 Pablo Rodriguez, Martín Coco, Alberto Soliño Testa and
1432 Pablo Annetta. This problem has Bugtraq id: 36121
1435 Fix a problem which allowed a malicious TFTP client to
1436 crash dnsmasq. Thanks to Steve Grubb at Red Hat for
1437 spotting this. This problem has Bugtraq id: 36120 and
1442 Fix regression in 2.48 which disables the lease-change
1443 script. Thanks to Jose Luis Duran for spotting this.
1445 Log TFTP "file not found" errors. These were not logged,
1446 since a normal PXELinux boot generates many of them, but
1447 the lack of the messages seems to be more confusing than
1448 routinely seeing them when there is no real error.
1450 Update Spanish translation. Thanks to Chris Chatham.
1454 Archived the extensive, backwards, changelog to
1455 CHANGELOG.archive. The current changelog now runs from
1456 version 2.43 and runs conventionally.
1458 Fixed bug which broke binding of servers to physical
1459 interfaces when interface names were longer than four
1460 characters. Thanks to MURASE Katsunori for the patch.
1462 Fixed netlink code to check that messages come from the
1463 correct source, and not another userspace process. Thanks
1464 to Steve Grubb for the patch.
1466 Maintainability drive: removed bug and missing feature
1467 workarounds for some old platforms. Solaris 9, OpenBSD
1468 older than 4.1, Glibc older than 2.2, Linux 2.2.x and
1469 DBus older than 1.1.x are no longer supported.
1471 Don't read included configuration files more than once:
1472 allows complex configuration structures without problems.
1474 Mark log messages from the various subsystems in dnsmasq:
1475 messages from the DHCP subsystem now have the ident string
1476 "dnsmasq-dhcp" and messages from TFTP have ident
1477 "dnsmasq-tftp". Thanks to Olaf Westrik for the patch.
1479 Fix possible infinite DHCP protocol loop when an IP
1480 address nailed to a hostname (not a MAC address) and a
1481 host sometimes provides the name, sometimes not.
1483 Allow --addn-hosts to take a directory: all the files
1484 in the directory are read. Thanks to Phil Cornelius for
1487 Support --bridge-interface on all platforms, not just BSD.
1489 Added support for advanced PXE functions. It's now
1490 possible to define a prompt and menu options which will
1491 be displayed when a client PXE boots. It's also possible to
1492 hand-off booting to other boot servers. Proxy-DHCP, where
1493 dnsmasq just supplies the PXE information and another DHCP
1494 server does address allocation, is also allowed. See the
1495 --pxe-prompt and --pxe-service keywords. Thanks to
1496 Alkis Georgopoulos for the suggestion and Guilherme Moro
1497 and Michael Brown for assistance.
1499 Improvements to DHCP logging. Thanks to Tom Metro for
1502 Add ability to build dnsmasq without DHCP support. To do
1503 this, edit src/config.h or build with
1504 "make COPTS=-DNO_DHCP". Thanks to Mahavir Jain for the patch.
1506 Added --test command-line switch - syntax check
1507 configuration files only.
1509 Updated French translation. Thanks to Gildas Le Nadan.
1513 Updated French translation. Thanks to Gildas Le Nadan.
1515 Fixed interface enumeration code to work on NetBSD
1516 5.0. Thanks to Roy Marples for the patch.
1518 Updated config.h to use the same location for the lease
1519 file on NetBSD as the other *BSD variants. Also allow
1520 LEASEFILE and CONFFILE symbols to be overriden in CFLAGS.
1522 Handle duplicate address detection on IPv6 more
1523 intelligently. In IPv6, an interface can have an address
1524 which is not usable, because it is still undergoing DAD
1525 (such addresses are marked "tentative"). Attempting to
1526 bind to an address in this state returns an error,
1527 EADDRNOTAVAIL. Previously, on getting such an error,
1528 dnsmasq would silently abandon the address, and never
1529 listen on it. Now, it retries once per second for 20
1530 seconds before generating a fatal error. 20 seconds should
1531 be long enough for any DAD process to complete, but can be
1532 adjusted in src/config.h if necessary. Thanks to Martin
1533 Krafft for the bug report.
1535 Add DBus introspection. Patch from Jeremy Laine.
1537 Update Dbus configuration file. Patch from Colin Walters.
1539 http://bugs.freedesktop.org/show_bug.cgi?id=18961
1541 Support arbitrarily encapsulated DHCP options, suggestion
1542 and initial patch from Samium Gromoff. This is useful for
1543 (eg) gPXE, which expect all its private options to be
1544 encapsulated inside a single option 175. So, eg,
1546 dhcp-option = encap:175, 190, "iscsi-client0"
1547 dhcp-option = encap:175, 191, "iscsi-client0-secret"
1549 will provide iSCSI parameters to gPXE.
1551 Enhance --dhcp-match to allow testing of the contents of a
1552 client-sent option, as well as its presence. This
1553 application in mind for this is RFC 4578
1554 client-architecture specifiers, but it's generally useful.
1555 Joey Korkames suggested the enhancement.
1557 Move from using the IP_XMIT_IF ioctl to IP_BOUND_IF on
1558 OpenSolaris. Thanks to Bastian Machek for the heads-up.
1560 No longer complain about blank lines in
1561 /etc/ethers. Thanks to Jon Nelson for the patch.
1563 Fix binding of servers to physical devices, eg
1564 --server=/domain/1.2.3.4@eth0 which was broken from 2.43
1565 onwards unless --query-port=0 set. Thanks to Peter Naulls
1568 Reply to DHCPINFORM requests even when the supplied ciaddr
1569 doesn't fall in any dhcp-range. In this case it's not
1570 possible to supply a complete configuration, but
1571 individually-configured options (eg PAC) may be useful.
1573 Allow the source address of an alias to be a range:
1574 --alias=192.168.0.0,10.0.0.0,255.255.255.0 maps the whole
1575 subnet 192.168.0.0->192.168.0.255 to 10.0.0.0->10.0.0.255,
1577 --alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
1578 maps only the 192.168.0.10->192.168.0.40 region. Thanks to
1579 Ib Uhrskov for the suggestion.
1581 Don't dynamically allocate DHCP addresses which may break
1582 Windows. Addresses which end in .255 or .0 are broken in
1583 Windows even when using supernetting.
1584 --dhcp-range=192.168.0.1,192.168.1.254,255,255,254.0 means
1585 192.168.0.255 is a valid IP address, but not for Windows.
1586 See Microsoft KB281579. We therefore no longer allocate
1587 these addresses to avoid hard-to-diagnose problems.
1589 Update Polish translation. Thanks to Jan Psota.
1591 Delete the PID-file when dnsmasq shuts down. Note that by
1592 this time, dnsmasq is normally not running as root, so
1593 this will fail if the PID-file is stored in a root-owned
1594 directory; such failure is silently ignored. To take
1595 advantage of this feature, the PID-file must be stored in a
1596 directory owned and write-able by the user running
1601 Allow --bootp-dynamic to take a netid tag, so that it may
1602 be selectively enabled. Thanks to Olaf Westrik for the
1605 Remove ISC-leasefile reading code. This has been
1606 deprecated for a long time, and last time I removed it, it
1607 ended up going back by request of one user. This time,
1608 it's gone for good; otherwise it would need to be
1609 re-worked to support multiple domains (see below).
1611 Support DHCP clients in multiple DNS domains. This is a
1612 long-standing request. Clients are assigned to a domain
1613 based in their IP address.
1615 Add --dhcp-fqdn flag, which changes behaviour if DNS names
1616 assigned to DHCP clients. When this is set, there must be
1617 a domain associated with each client, and only
1618 fully-qualified domain names are added to the DNS. The
1619 advantage is that the only the FQDN needs to be unique,
1620 so that two or more DHCP clients can share a hostname, as
1621 long as they are in different domains.
1623 Set environment variable DNSMASQ_DOMAIN when invoking
1624 lease-change script. This may be useful information to
1625 have now that it's variable.
1627 Tighten up data-checking code for DNS packet
1628 handling. Thanks to Steve Dodd who found certain illegal
1629 packets which could crash dnsmasq. No memory overwrite was
1630 possible, so this is not a security issue beyond the DoS
1633 Update example config dhcp option 47, the previous
1634 suggestion generated an illegal, zero-length,
1635 option. Thanks to Matthias Andree for finding this.
1637 Rewrite hosts-file reading code to remove the limit of
1638 1024 characters per line. John C Meuser found this.
1640 Create a net-id tag with the name of the interface on
1641 which the DHCP request was received.
1643 Fixed minor memory leak in DBus code, thanks to Jeremy
1644 Laine for the patch.
1646 Emit DBus signals as the DHCP lease database
1647 changes. Thanks to Jeremy Laine for the patch.
1649 Allow for more that one MAC address in a dhcp-host
1650 line. This configuration tells dnsmasq that it's OK to
1651 abandon a DHCP lease of the fixed address to one MAC
1652 address, if another MAC address in the dhcp-host statement
1653 asks for an address. This is useful to give a fixed
1654 address to a host which has two network interfaces
1655 (say, a laptop with wired and wireless interfaces.)
1656 It's very important to ensure that only one interface
1657 at a time is up, since dnsmasq abandons the first lease
1658 and re-uses the address before the leased time has
1659 elapsed. John Gray suggested this.
1661 Tweak the response to a DHCP request packet with a wrong
1662 server-id when --dhcp-authoritative is set; dnsmasq now
1663 returns a DHCPNAK, rather than silently ignoring the
1664 packet. Thanks to Chris Marget for spotting this
1667 Add --cname option. This provides a limited alias
1668 function, usable for DHCP names. Thanks to AJ Weber for
1669 suggestions on this.
1671 Updated contrib/webmin with latest version from Neil
1674 Updated Polish translation. Thanks to Jan Psota.
1676 Correct the text names for DHCP options 64 and 65 to be
1677 "nis+-domain" and "nis+-servers".
1679 Updated Spanish translation. Thanks to Chris Chatham.
1681 Force re-reading of /etc/resolv.conf when an "interface
1686 Fix total DNS failure in release 2.44 unless --min-port
1687 specified. Thanks to Steven Barth and Grant Coady for
1688 bugreport. Also reject out-of-range port spec, which could
1689 break things too: suggestion from Gilles Espinasse.
1693 Fix crash when unknown client attempts to renew a DHCP
1694 lease, problem introduced in version 2.43. Thanks to
1695 Carlos Carvalho for help chasing this down.
1697 Fix potential crash when a host which doesn't have a lease
1698 does DHCPINFORM. Again introduced in 2.43. This bug has
1699 never been reported in the wild.
1701 Fix crash in netlink code introduced in 2.43. Thanks to
1702 Jean Wolter for finding this.
1704 Change implementation of min_port to work even if min-port
1707 Patch to enable compilation of latest Mac OS X. Thanks to
1710 Update Spanish translation. Thanks to Christopher Chatham.
1714 Updated Polish translation. Thanks to Jan Psota.
1716 Flag errors when configuration options are repeated
1719 Further tweaks for GNU/kFreeBSD
1721 Add --no-wrap to msgmerge call - provides nicer .po file
1724 Honour lease-time spec in dhcp-host lines even for
1725 BOOTP. The user is assumed to known what they are doing in
1726 this case. (Hosts without the time spec still get infinite
1727 leases for BOOTP, over-riding the default in the
1728 dhcp-range.) Thanks to Peter Katzmann for uncovering this.
1730 Fix problem matching relay-agent ids. Thanks to Michael
1731 Rack for the bug report.
1733 Add --naptr-record option. Suggestion from Johan
1736 Implement RFC 5107 server-id-override DHCP relay agent
1739 Apply patches from Stefan Kruger for compilation on
1740 Solaris 10 under Sun studio.
1742 Yet more tweaking of Linux capability code, to suppress
1743 pointless wingeing from kernel 2.6.25 and above.
1745 Improve error checking during startup. Previously, some
1746 errors which occurred during startup would be worked
1747 around, with dnsmasq still starting up. Some were logged,
1748 some silent. Now, they all cause a fatal error and dnsmasq
1749 terminates with a non-zero exit code. The errors are those
1750 associated with changing uid and gid, setting process
1751 capabilities and writing the pidfile. Thanks to Uwe
1752 Gansert and the Suse security team for pointing out
1753 this improvement, and Bill Reimers for good implementation
1756 Provide NO_LARGEFILE compile option to switch off largefile
1757 support when compiling against versions of uclibc which
1758 don't support it. Thanks to Stephane Billiart for the patch.
1760 Implement random source ports for interactions with
1761 upstream nameservers. New spoofing attacks have been found
1762 against nameservers which do not do this, though it is not
1763 clear if dnsmasq is vulnerable, since to doesn't implement
1764 recursion. By default dnsmasq will now use a different
1765 source port (and socket) for each query it sends
1766 upstream. This behaviour can suppressed using the
1767 --query-port option, and the old default behaviour
1768 restored using --query-port=0. Explicit source-port
1769 specifications in --server configs are still honoured.
1771 Replace the random number generator, for better
1772 security. On most BSD systems, dnsmasq uses the
1773 arc4random() RNG, which is secure, but on other platforms,
1774 it relied on the C-library RNG, which may be
1775 guessable and therefore allow spoofing. This release
1776 replaces the libc RNG with the SURF RNG, from Daniel
1777 J. Berstein's DJBDNS package.
1779 Don't attempt to change user or group or set capabilities
1780 if dnsmasq is run as a non-root user. Without this, the
1781 change from soft to hard errors when these fail causes
1782 problems for non-root daemons listening on high
1783 ports. Thanks to Patrick McLean for spotting this.
1785 Updated French translation. Thanks to Gildas Le Nadan.
1789 The changelog for version 2.42 and earlier is
1790 available in CHANGELOG.archive.
projects / people / ms / dnsmasq.git / blob