2 Fix crash at startup when an empty suffix is supplied to
3 --conf-dir, also trivial memory leak. Thanks to
4 Tomas Hozza for spotting this.
6 Remove floor of 4096 on advertised EDNS0 packet size when
7 DNSSEC in use, the original rationale for this has long gone.
8 Thanks to Anders Kaseorg for spotting this.
10 Use inotify for checking on updates to /etc/resolv.conf and
11 friends under Linux. This fixes race conditions when the files are
12 updated rapidly and saves CPU by noy polling. To build
13 a binary that runs on old Linux kernels without inotify,
14 use make COPTS=-DNO_INOTIFY
16 Fix breakage of --domain=<domain>,<subnet>,local - only reverse
17 queries were intercepted. THis appears to have been broken
18 since 2.69. Thanks to Josh Stone for finding the bug.
20 Eliminate IPv6 privacy addresses and deprecated addresses from
21 the answers given by --interface-name. Note that reverse queries
22 (ie looking for names, given addresses) are not affected.
23 Thanks to Michael Gorbach for the suggestion.
25 Fix crash in DNSSEC code with long RRs. Thanks to Marco Davids
28 Add --ignore-address option. Ignore replies to A-record
29 queries which include the specified address. No error is
30 generated, dnsmasq simply continues to listen for another
31 reply. This is useful to defeat blocking strategies which
32 rely on quickly supplying a forged answer to a DNS
33 request for certain domains, before the correct answer can
34 arrive. Thanks to Glen Huang for the patch.
36 Revisit the part of DNSSEC validation which determines if an
37 unsigned answer is legit, or is in some part of the DNS
38 tree which should be signed. Dnsmasq now works from the
39 DNS root downward looking for the limit of signed
40 delegations, rather than working bottom up. This is
41 both more correct, and less likely to trip over broken
42 nameservers in the unsigned parts of the DNS tree
43 which don't respond well to DNSSEC queries.
45 Add --log-queries=extra option, which makes logs easier
46 to search automatically.
48 Add --min-cache-ttl option. I've resisted this for a long
49 time, on the grounds that disbelieving TTLs is never a
50 good idea, but I've been persuaded that there are
51 sometimes reasons to do it. (Step forward, GFW).
52 To avoid misuse, there's a hard limit on the TTL
53 floor of one hour. Thansk to RinSatsuki for the patch.
55 Cope with multiple interfaces with the same link-local
56 address. (IPv6 addresses are scoped, so this is allowed.)
57 Thanks to Cory Benfield for help with this.
59 Add --dhcp-hostsdir. This allows addition of new host
60 configurations to a running dnsmasq instance much more
61 cheaply than having dnsmasq re-read all its existing
62 configuration each time.
64 Don't reply to DHCPv6 SOLICIT messages if we're not
65 configured to do stateful DHCPv6. Thanks to Win King Wan
68 Fix broken DNSSEC validation of ECDSA signatures.
70 Add --dnssec-timestamp option, which provides an automatic
71 way to detect when the system time becomes valid after boot
72 on systems without an RTC, whilst allowing DNS queries before the
73 clock is valid so that NTP can run. Thanks to
74 Kevin Darbyshire-Bryant for developing this idea.
76 Add --tftp-no-fail option. Thanks to Stefan Tomanek for
81 Add ra-advrouter mode, for RFC-3775 mobile IPv6 support.
83 Add support for "ipsets" in *BSD, using pf. Thanks to
84 Sven Falempim for the patch.
86 Fix race condition which could lock up dnsmasq when an
87 interface goes down and up rapidly. Thanks to Conrad
88 Kostecki for helping to chase this down.
90 Add DBus methods SetFilterWin2KOption and SetBogusPrivOption
91 Thanks to the Smoothwall project for the patch.
93 Fix failure to build against Nettle-3.0. Thanks to Steven
94 Barth for spotting this and finding the fix.
96 When assigning existing DHCP leases to intefaces by comparing
97 networks, handle the case that two or more interfaces have the
98 same network part, but different prefix lengths (favour the
99 longer prefix length.) Thanks to Lung-Pin Chang for the
102 Add a mode which detects and removes DNS forwarding loops, ie
103 a query sent to an upstream server returns as a new query to
104 dnsmasq, and would therefore be forwarded again, resulting in
105 a query which loops many times before being dropped. Upstream
106 servers which loop back are disabled and this event is logged.
107 Thanks to Smoothwall for their sponsorship of this feature.
109 Extend --conf-dir to allow filtering of files. So
110 --conf-dir=/etc/dnsmasq.d,\*.conf
111 will load all the files in /etc/dnsmasq.d which end in .conf
113 Fix bug when resulted in NXDOMAIN answers instead of NODATA in
116 Fix bug which caused dnsmasq to become unresponsive if it
117 failed to send packets due to a network interface disappearing.
118 Thanks to Niels Peen for spotting this.
120 Fix problem with --local-service option on big-endian platforms
121 Thanks to Richard Genoud for the patch.
125 Subtle change to error handling to help DNSSEC validation
126 when servers fail to provide NODATA answers for
127 non-existent DS records.
129 Tweak code which removes DNSSEC records from answers when
130 not required. Fixes broken answers when additional section
131 has real records in it. Thanks to Marco Davids for the bug
134 Fix DNSSEC validation of ANY queries. Thanks to Marco Davids
135 for spotting that too.
137 Fix total DNS failure and 100% CPU use if cachesize set to zero,
138 regression introduced in 2.69. Thanks to James Hunt and
139 the Ubuntu crowd for assistance in fixing this.
143 Fix crash, introduced in 2.69, on TCP request when dnsmasq
144 compiled with DNSSEC support, but running without DNSSEC
145 enabled. Thanks to Manish Sing for spotting that one.
147 Fix regression which broke ipset functionality. Thanks to
148 Wang Jian for the bug report.
152 Implement dynamic interface discovery on *BSD. This allows
153 the contructor: syntax to be used in dhcp-range for DHCPv6
154 on the BSD platform. Thanks to Matthias Andree for
155 valuable research on how to implement this.
157 Fix infinite loop associated with some --bogus-nxdomain
158 configs. Thanks fogobogo for the bug report.
160 Fix missing RA RDNS option with configuration like
161 --dhcp-option=option6:23,[::] Thanks to Tsachi Kimeldorfer
162 for spotting the problem.
164 Add [fd00::] and [fe80::] as special addresses in DHCPv6
165 options, analogous to [::]. [fd00::] is replaced with the
166 actual ULA of the interface on the machine running
167 dnsmasq, [fe80::] with the link-local address.
168 Thanks to Tsachi Kimeldorfer for championing this.
170 DNSSEC validation and caching. Dnsmasq needs to be
171 compiled with this enabled, with
173 make dnsmasq COPTS=-DHAVE_DNSSEC
175 this add dependencies on the nettle crypto library and the
176 gmp maths library. It's possible to have these linked
179 make dnsmasq COPTS='-DHAVE_DNSSEC -DHAVE_DNSSEC_STATIC'
181 which bloats the dnsmasq binary, but saves the size of
182 the shared libraries which are much bigger.
184 To enable, DNSSEC, you will need a set of
185 trust-anchors. Now that the TLDs are signed, this can be
186 the keys for the root zone, and for convenience they are
187 included in trust-anchors.conf in the dnsmasq
188 distribution. You should of course check that these are
189 legitimate and up-to-date. So, adding
191 conf-file=/path/to/trust-anchors.conf
194 to your config is all thats needed to get things
195 working. The upstream nameservers have to be DNSSEC-capable
196 too, of course. Many ISP nameservers aren't, but the
197 Google public nameservers (8.8.8.8 and 8.8.4.4) are.
198 When DNSSEC is configured, dnsmasq validates any queries
199 for domains which are signed. Query results which are
200 bogus are replaced with SERVFAIL replies, and results
201 which are correctly signed have the AD bit set. In
202 addition, and just as importantly, dnsmasq supplies
203 correct DNSSEC information to clients which are doing
204 their own validation, and caches DNSKEY, DS and RRSIG
205 records, which significantly improve the performance of
206 downstream validators. Setting --log-queries will show
209 If a domain is returned from an upstream nameserver without
210 DNSSEC signature, dnsmasq by default trusts this. This
211 means that for unsigned zone (still the majority) there
212 is effectively no cost for having DNSSEC enabled. Of course
213 this allows an attacker to replace a signed record with a
214 false unsigned record. This is addressed by the
215 --dnssec-check-unsigned flag, which instructs dnsmasq
216 to prove that an unsigned record is legitimate, by finding
217 a secure proof that the zone containing the record is not
218 signed. Doing this has costs (typically one or two extra
219 upstream queries). It also has a nasty failure mode if
220 dnsmasq's upstream nameservers are not DNSSEC capable.
221 Without --dnssec-check-unsigned using such an upstream
222 server will simply result in not queries being validated;
223 with --dnssec-check-unsigned enabled and a
224 DNSSEC-ignorant upstream server, _all_ queries will fail.
226 Note that DNSSEC requires that the local time is valid and
227 accurate, if not then DNSSEC validation will fail. NTP
228 should be running. This presents a problem for routers
229 without a battery-backed clock. To set the time needs NTP
230 to do DNS lookups, but lookups will fail until NTP has run.
231 To address this, there's a flag, --dnssec-no-timecheck
232 which disables the time checks (only) in DNSSEC. When dnsmasq
233 is started and the clock is not synced, this flag should
234 be used. As soon as the clock is synced, SIGHUP dnsmasq.
235 The SIGHUP clears the cache of partially-validated data and
236 resets the no-timecheck flag, so that all DNSSEC checks
237 henceforward will be complete.
239 The development of DNSSEC in dnsmasq was started by
240 Giovanni Bajo, to whom huge thanks are owed. It has been
241 supported by Comcast, whose techfund grant has allowed for
242 an invaluable period of full-time work to get it to
245 Add --rev-server. Thanks to Dave Taht for suggesting this.
247 Add --servers-file. Allows dynamic update of upstream servers
248 full access to configuration.
250 Add --local-service. Accept DNS queries only from hosts
251 whose address is on a local subnet, ie a subnet for which
252 an interface exists on the server. This option
253 only has effect if there are no --interface --except-interface,
254 --listen-address or --auth-server options. It is intended
255 to be set as a default on installation, to allow
256 unconfigured installations to be useful but also safe from
257 being used for DNS amplification attacks.
259 Fix crashes in cache_get_cname_target() when dangling CNAMEs
260 encountered. Thanks to Andy and the rt-n56u project for
261 find this and helping to chase it down.
263 Fix wrong RCODE in authoritative DNS replies to PTR queries. The
264 correct answer was included, but the RCODE was set to NXDOMAIN.
265 Thanks to Craig McQueen for spotting this.
267 Make statistics available as DNS queries in the .bind TLD as
268 well as logging them.
272 Use random addresses for DHCPv6 temporary address
273 allocations, instead of algorithmically determined stable
276 Fix bug which meant that the DHCPv6 DUID was not available
277 in DHCP script runs during the lifetime of the dnsmasq
278 process which created the DUID de-novo. Once the DUID was
279 created and stored in the lease file and dnsmasq
280 restarted, this bug disappeared.
282 Fix bug introduced in 2.67 which could result in erroneous
283 NXDOMAIN returns to CNAME queries.
285 Fix build failures on MacOS X and openBSD.
287 Allow subnet specifications in --auth-zone to be interface
288 names as well as address literals. This makes it possible
289 to configure authoritative DNS when local address ranges
290 are dynamic and works much better than the previous
291 work-around which exempted contructed DHCP ranges from the
292 IP address filtering. As a consequence, that work-around
293 is removed. Under certain circumstances, this change wil
294 break existing configuration: if you're relying on the
295 contructed-range exception, you need to change --auth-zone
296 to specify the same interface as is used to construct your
297 DHCP ranges, probably with a trailing "/6" like this:
298 --auth-zone=example.com,eth0/6 to limit the addresses to
299 IPv6 addresses of eth0.
301 Fix problems when advertising deleted IPv6 prefixes. If
302 the prefix is deleted (rather than replaced), it doesn't
303 get advertised with zero preferred time. Thanks to Tsachi
306 Fix segfault with some locally configured CNAMEs. Thanks
307 to Andrew Childs for spotting the problem.
309 Fix memory leak on re-reading /etc/hosts and friends,
312 Check the arrival interface of incoming DNS and TFTP
313 requests via IPv6, even in --bind-interfaces mode. This
314 isn't possible for IPv4 and can generate scary warnings,
315 but as it's always possible for IPv6 (the API always
316 exists) then we should do it always.
318 Tweak the rules on prefix-lengths in --dhcp-range for
319 IPv6. The new rule is that the specified prefix length
320 must be larger than or equal to the prefix length of the
321 corresponding address on the local interface.
325 Fix crash if upstream server returns SERVFAIL when
326 --conntrack in use. Thanks to Giacomo Tazzari for finding
327 this and supplying the patch.
329 Repair regression in 2.64. That release stopped sending
330 lease-time information in the reply to DHCPINFORM
331 requests, on the correct grounds that it was a standards
332 violation. However, this broke the dnsmasq-specific
333 dhcp_lease_time utility. Now, DHCPINFORM returns
334 lease-time only if it's specifically requested
335 (maintaining standards) and the dhcp_lease_time utility
336 has been taught to ask for it (restoring functionality).
338 Fix --dhcp-match, --dhcp-vendorclass and --dhcp-userclass
339 to work with BOOTP and well as DHCP. Thanks to Peter
340 Korsgaard for spotting the problem.
342 Add --synth-domain. Thanks to Vishvananda Ishaya for
345 Fix failure to compile ipset.c if old kernel headers are
346 in use. Thanks to Eugene Rudoy for pointing this out.
348 Handle IPv4 interface-address labels in Linux. These are
349 often used to emulate the old IP-alias addresses. Before,
350 using --interface=eth0 would service all the addresses of
351 eth0, including ones configured as aliases, which appear
352 in ifconfig as eth0:0. Now, only addresses with the label
353 eth0 are active. This is not backwards compatible: if you
354 want to continue to bind the aliases too, you need to add
355 eg. --interface=eth0:0 to the config.
357 Fix "failed to set SO_BINDTODEVICE on DHCP socket: Socket
358 operation on non-socket" error on startup with
359 configurations which have exactly one --interface option
360 and do RA but _not_ DHCPv6. Thanks to Trever Adams for the
363 Generalise --interface-name to cope with IPv6 addresses
364 and multiple addresses per interface per address family.
366 Fix option parsing for --dhcp-host, which was generating a
367 spurious error when all seven possible items were
368 included. Thanks to Zhiqiang Wang for the bug report.
370 Remove restriction on prefix-length in --auth-zone. Thanks
371 to Toke Hoiland-Jorgensen for suggesting this.
373 Log when the maximum number of concurrent DNS queries is
374 reached. Thanks to Marcelo Salhab Brogliato for the patch.
376 If wildcards are used in --interface, don't assume that
377 there will only ever be one available interface for DHCP
378 just because there is one at start-up. More may appear, so
379 we can't use SO_BINDTODEVICE. Thanks to Natrio for the bug
382 Increase timeout/number of retries in TFTP to accomodate
383 AudioCodes Voice Gateways doing streaming writes to flash.
384 Thanks to Damian Kaczkowski for spotting the problem.
386 Fix crash with empty DHCP string options when adding zero
387 terminator. Thanks to Patrick McLean for the bug report.
389 Allow hostnames to start with a number, as allowed in
390 RFC-1123. Thanks to Kyle Mestery for the patch.
392 Fixes to DHCP FQDN option handling: don't terminate FQDN
393 if domain not known and allow a FQDN option with blank
394 name to request that a FQDN option is returned in the
395 reply. Thanks to Roy Marples for the patch.
397 Make --clear-on-reload apply to setting upstream servers
400 When the address which triggered the construction of an
401 advertised IPv6 prefix disappears, continue to advertise
402 the prefix for up to 2 hours, with the preferred lifetime
403 set to zero. This satisfies RFC 6204 4.3 L-13 and makes
404 things work better if a prefix disappears without being
405 deprecated first. Thanks to Uwe Schindler for persuasively
408 Fix MAC address enumeration on *BSD. Thanks to Brad Smith
411 Support RFC-4242 information-refresh-time options in the
412 reply to DHCPv6 information-request. The lease time of the
413 smallest valid dhcp-range is sent. Thanks to Uwe Schindler
416 Make --listen-address higher priority than --except-interface
417 in all circumstances. Thanks to Thomas Hood for the bugreport.
419 Provide independent control over which interfaces get TFTP
420 service. If enable-tftp is given a list of interfaces, then TFTP
421 is provided on those. Without the list, the previous behaviour
422 (provide TFTP to the same interfaces we provide DHCP to)
423 is retained. Thanks to Lonnie Abelbeck for the suggestion.
425 Add --dhcp-relay config option. Many thanks to vtsl.net
426 for sponsoring this development.
428 Fix crash with empty tag: in --dhcp-range. Thanks to
429 Kaspar Schleiser for the bug report.
431 Add "baseline" and "bloatcheck" makefile targets, for
432 revealing size changes during development. Thanks to
433 Vladislav Grishenko for the patch.
435 Cope with DHCPv6 clients which send REQUESTs without
436 address options - treat them as SOLICIT with rapid commit.
438 Support identification of clients by MAC address in
439 DHCPv6. When using a relay, the relay must support RFC
440 6939 for this to work. It always works for directly
441 connected clients. Thanks to Vladislav Grishenko
442 for prompting this feature.
444 Remove the rule for constructed DHCP ranges that the local
445 address must be either the first or last address in the
446 range. This was originally to avoid SLAAC addresses, but
447 we now explicitly autoconfig and privacy addresses instead.
449 Update Polish translation. Thanks to Jan Psota.
451 Fix problem in DHCPv6 vendorclass/userclass matching
452 code. Thanks to Tanguy Bouzeloc for the patch.
454 Update Spanish transalation. Thanks to Vicente Soriano.
456 Add --ra-param option. Thanks to Vladislav Grishenko for
459 Add --add-subnet configuration, to tell upstream DNS
460 servers where the original client is. Thanks to DNSthingy
461 for sponsoring this feature.
463 Add --quiet-dhcp, --quiet-dhcp6 and --quiet-ra. Thanks to
464 Kevin Darbyshire-Bryant for the initial patch.
466 Allow A/AAAA records created by --interface-name to be the
467 target of --cname. Thanks to Hadmut Danisch for the
470 Avoid treating a --dhcp-host which has an IPv6 address
471 as eligable for use with DHCPv4 on the grounds that it has
472 no address, and vice-versa. Thanks to Yury Konovalov for
473 spotting the problem.
475 Do a better job caching dangling CNAMEs. Thanks to Yves
476 Dorfsman for spotting the problem.
480 Add the ability to act as an authoritative DNS
481 server. Dnsmasq can now answer queries from the wider 'net
482 with local data, as long as the correct NS records are set
483 up. Only local data is provided, to avoid creating an open
484 DNS relay. Zone transfer is supported, to allow secondary
485 servers to be configured.
487 Add "constructed DHCP ranges" for DHCPv6. This is intended
488 for IPv6 routers which get prefixes dynamically via prefix
489 delegation. With suitable configuration, stateful DHCPv6
490 and RA can happen automatically as prefixes are delegated
491 and then deprecated, without having to re-write the
492 dnsmasq configuration file or restart the daemon. Thanks to
493 Steven Barth for extensive testing and development work on
496 Fix crash on startup on Solaris 11. Regression probably
497 introduced in 2.61. Thanks to Geoff Johnstone for the
500 Add code to make behaviour for TCP DNS requests that same
501 as for UDP requests, when a request arrives for an allowed
502 address, but via a banned interface. This change is only
503 active on Linux, since the relevant API is missing (AFAIK)
504 on other platforms. Many thanks to Tomas Hozza for
505 spotting the problem, and doing invaluable discovery of
506 the obscure and undocumented API required for the solution.
508 Don't send the default DHCP option advertising dnsmasq as
509 the local DNS server if dnsmasq is configured to not act
510 as DNS server, or it's configured to a non-standard port.
512 Add DNSMASQ_CIRCUIT_ID, DNSMASQ_SUBCRIBER_ID,
513 DNSMASQ_REMOTE_ID variables to the environment of the
514 lease-change script (and the corresponding Lua). These hold
515 information inserted into the DHCP request by a DHCP relay
516 agent. Thanks to Lakefield Communications for providing a
517 bounty for this addition.
519 Fixed crash, introduced in 2.64, whilst handling DHCPv6
520 information-requests with some common configurations.
521 Thanks to Robert M. Albrecht for the bug report and
524 Add --ipset option. Thanks to Jason A. Donenfeld for the
527 Don't erroneously reject some option names in --dhcp-match
528 options. Thanks to Benedikt Hochstrasser for the bug report.
530 Allow a trailing '*' wildcard in all interface-name
531 configurations. Thanks to Christian Parpart for the patch.
533 Handle the situation where libc headers define
534 SO_REUSEPORT, but the kernel in use doesn't, to cope with
535 the introduction of this option to Linux. Thanks to Rich
536 Felker for the bug report.
538 Update Polish translation. Thanks to Jan Psota.
540 Fix crash if the configured DHCP lease limit is
541 reached. Regression occurred in 2.61. Thanks to Tsachi for
544 Update the French translation. Thanks to Gildas le Nadan.
548 Fix regression which broke forwarding of queries sent via
549 TCP which are not for A and AAAA and which were directed to
550 non-default servers. Thanks to Niax for the bug report.
552 Fix failure to build with DHCP support excluded. Thanks to
553 Gustavo Zacarias for the patch.
555 Fix nasty regression in 2.64 which completely broke cacheing.
559 Handle DHCP FQDN options with all flag bits zero and
560 --dhcp-client-update set. Thanks to Bernd Krumbroeck for
561 spotting the problem.
563 Finesse the check for /etc/hosts names which conflict with
564 DHCP names. Previously a name/address pair in /etc/hosts
565 which didn't match the name/address of a DHCP lease would
566 generate a warning. Now that only happesn if there is not
567 also a match. This allows multiple addresses for a name in
568 /etc/hosts with one of them assigned via DHCP.
570 Fix broken vendor-option processing for BOOTP. Thanks to
571 Hans-Joachim Baader for the bug report.
573 Don't report spurious netlink errors, regression in
574 2.63. Thanks to Vladislav Grishenko for the patch.
576 Flag DHCP or DHCPv6 in starup logging. Thanks to
577 Vladislav Grishenko for the patch.
579 Add SetServersEx method in DBus interface. Thanks to Dan
580 Williams for the patch.
582 Add SetDomainServers method in DBus interface. Thanks to
583 Roy Marples for the patch.
585 Fix build with later Lua libraries. Thansk to Cristian
586 Rodriguez for the patch.
588 Add --max-cache-ttl option. Thanks to Dennis Kaarsemaker
591 Fix breakage of --host-record parsing, resulting in
592 infinte loop at startup. Regression in 2.63. Thanks to
593 Haim Gelfenbeyn for spotting this.
595 Set SO_REUSEADDRESS and SO_V6ONLY options on the DHCPv6
596 socket, this allows multiple instances of dnsmasq on a
597 single machine, in the same way as for DHCPv4. Thanks to
598 Gene Czarcinski and Vladislav Grishenko for work on this.
600 Fix DHCPv6 to do access control correctly when it's
601 configured with --listen-address. Thanks to
602 Gene Czarcinski for sorting this out.
604 Add a "wildcard" dhcp-range which works for any IPv6
605 subnet, --dhcp-range=::,static Useful for Stateless
606 DHCPv6. Thanks to Vladislav Grishenko for the patch.
608 Don't include lease-time in DHCPACK replies to DHCPINFORM
609 queries, since RFC-2131 says we shouldn't. Thanks to
610 Wouter Ibens for pointing this out.
612 Makefile tweak to do dependency checking on header files.
613 Thanks to Johan Peeters for the patch.
615 Check interface for outgoing unsolicited router
616 advertisements, rather than relying on interface address
617 configuration. Thanks to Gene Czarinski for the patch.
619 Handle better attempts to transmit on interfaces which are
620 still doing DAD, and specifically do not just transmit
621 without setting source address and interface, since this
622 can cause very puzzling effects when a router
623 advertisement goes astray. Thanks again to Gene Czarinski.
625 Get RA timers right when there is more than one
626 dhcp-range on a subnet.
630 Do duplicate dhcp-host address check in --test mode.
632 Check that tftp-root directories are accessible before
633 start-up. Thanks to Daniel Veillard for the initial patch.
635 Allow more than one --tfp-root flag. The per-interface
636 stuff is pointless without that.
638 Add --bind-dynamic. A hybrid mode between the default and
639 --bind-interfaces which copes with dynamically created
642 A couple of fixes to the build system for Android. Thanks
643 to Metin Kaya for the patches.
645 Remove the interface:<interface> argument in --dhcp-range, and
646 the interface argument to --enable-tftp. These were a
647 still-born attempt to allow automatic isolated
648 configuration by libvirt, but have never (to my knowledge)
649 been used, had very strange semantics, and have been
650 superceded by other mechanisms.
652 Fixed bug logging filenames when duplicate dhcp-host
653 addresses are found. Thanks to John Hanks for the patch.
655 Fix regression in 2.61 which broke caching of CNAME
656 chains. Thanks to Atul Gupta for the bug report.
658 Allow the target of a --cname flag to be another --cname.
660 Teach DHCPv6 about the RFC 4242 information-refresh-time
661 option, and add parsing if the minutes, hours and days
662 format for options. Thanks to Francois-Xavier Le Bail for
665 Allow "w" (for week) as multiplier in lease times, as well
666 as seconds, minutes, hours and days. Álvaro Gámez Machado
667 spotted the ommission.
669 Update French translation. Thanks to Gildas Le Nadan.
671 Allow a DBus service name to be given with --enable-dbus
672 which overrides the default,
673 uk.org.thekelleys.dnsmasq. Thanks to Mathieu
674 Trudel-Lapierre for the patch.
676 Set the "prefix on-link" bit in Router
677 Advertisements. Thanks to Gui Iribarren for the patch.
681 Update German translation. Thanks to Conrad Kostecki.
683 Cope with router-solict packets wich don't have a valid
684 source address. Thanks to Vladislav Grishenko for the patch.
686 Fixed bug which caused missing periodic router
687 advertisements with some configurations. Thanks to
688 Vladislav Grishenko for the patch.
690 Fixed bug which broke DHCPv6/RA with prefix lengths
691 which are not divisible by 8. Thanks to Andre Coetzee
694 Fix non-response to router-solicitations when
695 router-advertisement configured, but DHCPv6 not
696 configured. Thanks to Marien Zwart for the patch.
698 Add --dns-rr, to allow arbitrary DNS resource records.
700 Fixed bug which broke RA scheduling when an interface had
701 two addresses in the same network. Thanks to Jim Bos for
702 his help nailing this.
705 Re-write interface discovery code on *BSD to use
706 getifaddrs. This is more portable, more straightforward,
707 and allows us to find the prefix length for IPv6
710 Add ra-names, ra-stateless and slaac keywords for DHCPv6.
711 Dnsmasq can now synthesise AAAA records for dual-stack
712 hosts which get IPv6 addresses via SLAAC. It is also now
713 possible to use SLAAC and stateless DHCPv6, and to
714 tell clients to use SLAAC addresses as well as DHCP ones.
715 Thanks to Dave Taht for help with this.
717 Add --dhcp-duid to allow DUID-EN uids to be used.
719 Explicity send DHCPv6 replies to the correct port, instead
720 of relying on clients to send requests with the correct
721 source address, since at least one client in the wild gets
722 this wrong. Thanks to Conrad Kostecki for help tracking
725 Send a preference value of 255 in DHCPv6 replies when
726 --dhcp-authoritative is in effect. This tells clients not
727 to wait around for other DHCP servers.
729 Better logging of DHCPv6 options.
731 Add --host-record. Thanks to Rob Zwissler for the
734 Invoke the DHCP script with action "tftp" when a TFTP file
735 transfer completes. The size of the file, address to which
736 it was sent and complete pathname are supplied. Note that
737 version 2.60 introduced some script incompatibilties
738 associated with DHCPv6, and this is a further change. To
739 be safe, scripts should ignore unknown actions, and if
740 not IPv6-aware, should exit if the environment
741 variable DNSMASQ_IAID is set. The use-case for this is
742 to track netboot/install. Suggestion from Shantanu
745 Update contrib/port-forward/dnsmasq-portforward to reflect
748 Set the environment variable DNSMASQ_LOG_DHCP when running
749 the script id --log-dhcp is in effect, so that script can
750 taylor their logging verbosity. Suggestion from Malte
753 Arrange that addresses specified with --listen-address
754 work even if there is no interface carrying the
755 address. This is chiefly useful for IPv4 loopback
756 addresses, where any address in 127.0.0.0/8 is a valid
757 loopback address, but normally only 127.0.0.1 appears on
758 the lo interface. Thanks to Mathieu Trudel-Lapierre for
759 the idea and initial patch.
761 Fix crash, introduced in 2.60, when a DHCPINFORM is
762 received from a network which has no valid dhcp-range.
763 Thanks to Stephane Glondu for the bug report.
765 Add a new DHCP lease time keyword, "deprecated" for
766 --dhcp-range. This is only valid for IPv6, and sets the
767 preffered lease time for both DHCP and RA to zero. The
768 effect is that clients can continue to use the address
769 for existing connections, but new connections will use
770 other addresses, if they exist. This makes hitless
771 renumbering at least possible.
773 Fix bug in address6_available() which caused DHCPv6 lease
774 aquisition to fail if more than one dhcp-range in use.
776 Provide RDNSS and DNSSL data in router advertisements,
777 using the settings provided for DHCP options
778 option6:domain-search and option6:dns-server.
780 Tweak logo/favicon.ico to add some transparency. Thanks to
781 SamLT for work on this.
783 Don't cache data from non-recursive nameservers, since it
784 may erroneously look like a valid CNAME to a non-exitant
785 name. Thanks to Ben Winslow for finding this.
787 Call SO_BINDTODEVICE on the DHCP socket(s) when doing DHCP
788 on exactly one interface and --bind-interfaces is set. This
789 makes the OpenStack use-case of one dnsmasq per virtual
790 interface work. This is only available on Linux; it's not
791 supported on other platforms. Thanks to Vishvananda Ishaya
792 and the OpenStack team for the suggestion.
794 Updated French translation. Thanks to Gildas Le Nadan.
796 Give correct from-cache answers to explict CNAME queries.
797 Thanks to Rob Zwissler for spotting this.
799 Add --tftp-lowercase option. Thanks to Oliver Rath for the
802 Ensure that the DBus DhcpLeaseUpdated events are generated
803 when a lease goes through INIT_REBOOT state, even if the
804 dhcp-script is not in use. Thanks to Antoaneta-Ecaterina
807 Fix failure of TFTP over IPv4 on OpenBSD platform. Thanks
808 to Brad Smith for spotting this.
812 Fix compilation problem in Mac OS X Lion. Thanks to Olaf
813 Flebbe for the patch.
815 Fix DHCP when using --listen-address with an IP address
816 which is not the primary address of an interface.
818 Add --dhcp-client-update option.
820 Add Lua integration. Dnsmasq can now execute a DHCP
821 lease-change script written in Lua. This needs to be
822 enabled at compile time by setting HAVE_LUASCRIPT in
823 src/config.h or running "make COPTS=-DHAVE_LUASCRIPT"
824 Thanks to Jan-Piet Mens for the idea and proof-of-concept
827 Tidied src/config.h to distinguish between
828 platform-dependent compile-time options which are selected
829 automatically, and builder-selectable compile time
830 options. Document the latter better, and describe how to
831 set them from the make command line.
833 Tidied up IPPROTO_IP/SOL_IP (and IPv6 equivalent)
834 confusion. IPPROTO_IP works everywhere now.
836 Set TOS on DHCP sockets, this improves things on busy
837 wireless networks. Thanks to Dave Taht for the patch.
839 Determine VERSION automatically based on git magic:
840 release tags or hash values.
842 Improve start-up speed when reading large hosts files
843 containing many distinct addresses.
845 Fix problem if dnsmasq is started without the stdin,
846 stdout and stderr file descriptors open. This can manifest
847 itself as 100% CPU use. Thanks to Chris Moore for finding
850 Fix shell-scripting bug in bld/pkg-wrapper. Thanks to
851 Mark Mitchell for the patch.
853 Allow the TFP server or boot server in --pxe-service, to
854 be a domain name instead of an IP address. This allows for
855 round-robin to multiple servers, in the same way as
856 --dhcp-boot. A good suggestion from Cristiano Cumer.
858 Support BUILDDIR variable in the Makefile. Allows builds
859 for multiple archs from the same source tree with eg.
860 make BUILDDIR=linux (relative to dnsmasq tree)
861 make BUILDDIR=/tmp/openbsd (absolute path)
862 If BUILDDIR is not set, compilation happens in the src
863 directory, as before. Suggestion from Mark Mitchell.
865 Support DHCPv6. Support is there for the sort of things
866 the existing v4 server does, including tags, options,
867 static addresses and relay support. Missing is prefix
868 delegation, which is probably not required in the dnsmasq
869 niche, and an easy way to accept prefix delegations from
870 an upstream DHCPv6 server, which is. Future plans include
871 support for DHCPv6 router option and MAC address option
872 (to make selecting clients by MAC address work like IPv4).
873 These will be added as the standards mature.
874 This code has been tested, but this is the first release,
875 so don't bet the farm on it just yet. Many thanks to all
876 testers who have got it this far.
878 Support IPv6 router advertisements. This is a
879 simple-minded implementation, aimed at providing the
880 vestigial RA needed to go alongside IPv6. Is picks up
881 configuration from the DHCPv6 conf, and should just need
882 enabling with --enable-ra.
884 Fix long-standing wrinkle with --localise-queries that
885 could result in wrong answers when DNS packets arrive
886 via an interface other than the expected one. Thanks to
887 Lorenzo Milesi and John Hanks for spotting this one.
889 Update French translation. Thanks to Gildas Le Nadan.
891 Update Polish translation. Thanks to Jan Psota.
895 Fix regression in 2.58 which caused failure to start up
896 with some combinations of dnsmasq config and IPv6 kernel
897 network config. Thanks to Brielle Bruns for the bug
900 Improve dnsmasq's behaviour when network interfaces are
901 still doing duplicate address detection (DAD). Previously,
902 dnsmasq would wait up to 20 seconds at start-up for the
903 DAD state to terminate. This is broken for bridge
904 interfaces on recent Linux kernels, which don't start DAD
905 until the bridge comes up, and so can take arbitrary
906 time. The new behaviour lets dnsmasq poll for an arbitrary
907 time whilst providing service on other interfaces. Thanks
908 to Stephen Hemminger for pointing out the problem.
912 Provide a definition of the SA_SIZE macro where it's
913 missing. Fixes build failure on openBSD.
915 Don't include a zero terminator at the end of messages
916 sent to /dev/log when /dev/log is a datagram socket.
917 Thanks to Didier Rabound for spotting the problem.
919 Add --dhcp-sequential-ip flag, to force allocation of IP
920 addresses in ascending order. Note that the default
921 pseudo-random mode is in general better but some
922 server-deployment applications need this.
924 Fix problem where a server-id of 0.0.0.0 is sent to a
925 client when a dhcp-relay is in use if a client renews a
926 lease after dnsmasq restart and before any clients on the
927 subnet get a new lease. Thanks to Mike Ruiz for assistance
928 in chasing this one down.
930 Don't return NXDOMAIN to an AAAA query if we have CNAME
931 which points to an A record only: NODATA is the correct
932 reply in this case. Thanks to Tom Fernandes for spotting
935 Relax the need to supply a netmask in --dhcp-range for
936 networks which use a DHCP relay. Whilst this is still
937 desireable, in the absence of a netmask dnsmasq will use
938 a default based on the class (A, B, or C) of the address.
939 This should at least remove a cause of mysterious failure
940 for people using RFC1918 addresses and relays.
942 Add support for Linux conntrack connection marking. If
943 enabled with --conntrack, the connection mark for incoming
944 DNS queries will be copied to the outgoing connections
945 used to answer those queries. This allows clever firewall
946 and accounting stuff. Only available if dnsmasq is
947 compiled with HAVE_CONNTRACK and adds a dependency on
948 libnetfilter-conntrack. Thanks to Ed Wildgoose for the
949 initial idea, testing and sponsorship of this function.
951 Provide a sane error message when someone attempts to
952 match a tag in --dhcp-host.
954 Tweak the behaviour of --domain-needed, to avoid problems
955 with recursive nameservers downstream of dnsmasq. The new
956 behaviour only stops A and AAAA queries, and returns
957 NODATA rather than NXDOMAIN replies.
959 Efficiency fix for very large DHCP configurations, thanks
960 to James Gartrell and Mike Ruiz for help with this.
962 Allow the TFTP-server address in --dhcp-boot to be a
963 domain-name which is looked up in /etc/hosts. This can
964 give multiple IP addresses which are used round-robin,
965 thus doing TFTP server load-balancing. Thanks to Sushil
966 Agrawal for the patch.
968 When two tagged dhcp-options for a particular option
969 number are both valid, use the one which is valid without
970 a tag from the dhcp-range. Allows overriding of the value
971 of a DHCP option for a particular host as well as
972 per-network values. So
973 --dhcp-range=set:interface1,......
974 --dhcp-host=set:myhost,.....
975 --dhcp-option=tag:interface1,option:nis-domain,"domain1"
976 --dhcp-option=tag:myhost,option:nis-domain,"domain2"
977 will set the NIS-domain to domain1 for hosts in the range, but
978 override that to domain2 for a particular host.
980 Fix bug which resulted in truncated files and timeouts for
981 some TFTP transfers. The bug only occurs with netascii
982 transfers and needs an unfortunate relationship between
983 file size, blocksize and the number of newlines in the
984 last block before it manifests itself. Many thanks to
985 Alkis Georgopoulos for spotting the problem and providing
986 a comprehensive test-case.
988 Fix regression in TFTP server on *BSD platforms introduced
989 in version 2.56, due to confusion with sockaddr
990 length. Many thanks to Loic Pefferkorn for finding this.
992 Support scope-ids in IPv6 addresses of nameservers from
993 /etc/resolv.conf and in --server options. Eg
994 nameserver fe80::202:a412:4512:7bbf%eth0 or
995 server=fe80::202:a412:4512:7bbf%eth0. Thanks to
996 Michael Stapelberg for the suggestion.
998 Update Polish translation, thanks to Jan Psota.
1000 Update French translation. Thanks to Gildas Le Nadan.
1004 Add patches to allow build under Android.
1006 Provide our own header for the DNS protocol, rather than
1007 relying on arpa/nameser.h. This has proved more or less
1008 defective over the years and the final straw is that it's
1009 effectively empty on Android.
1011 Fix regression in 2.56 which caused hex constants in
1012 configuration to be rejected if they contain the '*'
1015 Correct wrong casts of arguments to ctype.h functions,
1016 isdigit(), isxdigit() etc. Thanks to Matthias Andree for
1019 Allow build with IDN support independently from i18n.
1020 IDN support continues to be included automatically
1021 when i18n is included.
1022 'make COPTS=-DHAVE_IDN' is the magic incantation.
1024 Modify check on extraneous command line junk (added in
1025 2.56) so that it doesn't complain about extra _empty_
1026 arguments. Otherwise this breaks libvirt.
1030 Add a patch to allow dnsmasq to get interface names right in a
1031 Solaris zone. Thanks to Dj Padzensky for this.
1033 Improve data-type parsing heuristics so that
1034 --dhcp-option=option:domain-search,.
1035 treats the value as a string and not an IP address.
1036 Thanks to Clemens Fischer for spotting that.
1038 Add IPv6 support to the TFTP server. Many thanks to Jan
1039 'RedBully' Seiffert for the patches.
1041 Log DNS queries at level LOG_INFO, rather then
1042 LOG_DEBUG. This makes things consistent with DHCP
1043 logging. Thanks to Adam Pribyl for spotting the problem.
1045 Ensure that dnsmasq terminates cleanly when using
1046 --syslog-async even if it cannot make a connection to the
1049 Add --add-mac option. This is to support currently
1050 experimental DNS filtering facilities. Thanks to Benjamin
1051 Petrin for the orignal patch.
1053 Fix bug which meant that tags were ignored in dhcp-range
1054 configuration specifying PXE-proxy service. Thanks to
1055 Cristiano Cumer for spotting this.
1057 Raise an error if there is extra junk, not part of an
1058 option, on the command line.
1060 Flag a couple of log messages in cache.c as coming from
1061 the DHCP subsystem. Thanks to Olaf Westrik for the patch.
1063 Omit timestamps from logs when a) logging to stderr and
1064 b) --keep-in-forground is set. The logging facility on the
1065 other end of stderr can be assumned to supply them. Thanks
1066 to John Hallam for the patch.
1068 Don't complain about strings longer than 255 characters in
1069 --txt-record, just split the long strings into 255
1070 character chunks instead.
1072 Fix crash on double-free. This bug can only happen when
1073 dhcp-script is in use and then only in rare circumstances
1074 triggered by high DHCP transaction rate and a slow
1075 script. Thanks to Ferenc Wagner for finding the problem.
1077 Only log that a file has been sent by TFTP after the
1078 transfer has completed succesfully.
1080 A good suggestion from Ferenc Wagner: extend
1081 the --domain option to allow this sort of thing:
1082 --domain=thekelleys.org.uk,192.168.0.0/24,local
1083 which automatically creates
1084 --local=/thekelleys.org.uk/
1085 --local=/0.168.192.in-addr.arpa/
1087 Tighten up syntax checking of hex contants in the config
1088 file. Thanks to Fred Damen for spotting this.
1090 Add dnsmasq logo/icon, contributed by Justin Swift. Many
1093 Never cache DNS replies which have the 'cd' bit set, or
1094 which result from queries forwarded with the 'cd' bit
1095 set. The 'cd' bit instructs a DNSSEC validating server
1096 upstream to ignore signature failures and return replies
1097 anyway. Without this change it's possible to pollute the
1098 dnsmasq cache with bad data by making a query with the
1099 'cd' bit set and subsequent queries would return this data
1100 without its being marked as suspect. Thanks to Anders
1101 Kaseorg for pointing out this problem.
1103 Add --proxy-dnssec flag, for compliance with RFC
1104 4035. Dnsmasq will now clear the 'ad' bit in answers returned
1105 from upstream validating nameservers unless this option is
1108 Allow a filename of "-" for --conf-file to read
1109 stdin. Suggestion from Timothy Redaelli.
1111 Rotate the order of SRV records in replies, to provide
1112 round-robin load balancing when all the priorities are
1113 equal. Thanks to Peter McKinney for the suggestion.
1116 contrib/MacOSX-launchd/uk.org.thekelleys.dnsmasq.plist
1117 so that it doesn't log all queries to a file by
1118 default. Thanks again to Peter McKinney.
1120 By default, setting an IPv4 address for a domain but not
1121 an IPv6 address causes dnsmasq to return
1122 an NODATA reply for IPv6 (or vice-versa). So
1123 --address=/google.com/1.2.3.4 stops IPv6 queries for
1124 *google.com from being forwarded. Make it possible to
1125 override this behaviour by defining the sematics if the
1126 same domain appears in both --server and --address.
1127 In that case, the --address has priority for the address
1128 family in which is appears, but the --server has priority
1129 of the address family which doesn't appear in --adddress
1131 --address=/google.com/1.2.3.4
1132 --server=/google.com/#
1133 will return 1.2.3.4 for IPv4 queries for *.google.com but
1134 forward IPv6 queries to the normal upstream nameserver.
1135 Similarly when setting an IPv6 address
1136 only this will allow forwarding of IPv4 queries. Thanks to
1137 William for pointing out the need for this.
1139 Allow more than one --dhcp-optsfile and --dhcp-hostsfile
1140 and make them understand directories as arguments in the
1141 same way as --addn-hosts. Suggestion from John Hanks.
1143 Ignore rebinding requests for leases we don't know
1144 about. Rebind is broadcast, so we might get to overhear a
1145 request meant for another DHCP server. NAKing this is
1146 wrong. Thanks to Brad D'Hondt for assistance with this.
1148 Fix cosmetic bug which produced strange output when
1149 dumping cache statistics with some configurations. Thanks
1150 to Fedor Kozhevnikov for spotting this.
1154 Fix crash when /etc/ethers is in use. Thanks to
1155 Gianluigi Tiesi for finding this.
1157 Fix crash in netlink_multicast(). Thanks to Arno Wald for
1160 Allow the empty domain "." in dhcp domain-search (119)
1165 There is no version 2.54 to avoid confusion with 2.53,
1166 which incorrectly identifies itself as 2.54.
1170 Fix failure to compile on Debian/kFreeBSD. Thanks to
1171 Axel Beckert and Petr Salinger.
1173 Fix code to avoid scary strict-aliasing warnings
1174 generated by gcc 4.4.
1176 Added FAQ entry warning about DHCP failures with Vista
1177 when firewalls block 255.255.255.255.
1179 Fixed bug which caused bad things to happen if a
1180 resolv.conf file which exists is subsequently removed.
1181 Thanks to Nikolai Saoukh for the patch.
1183 Rationalised the DHCP tag system. Every configuration item
1184 which can set a tag does so by adding "set:<tag>" and
1185 every configuration item which is conditional on a tag is
1186 made so by "tag:<tag>". The NOT operator changes to '!',
1187 which is a bit more intuitive too. Dhcp-host directives
1188 can set more than one tag now. The old '#' NOT,
1189 "net:" prefix and no-prefixes are still honoured, so
1190 no existing config file needs to be changed, but
1191 the documentation and new-style config files should be
1192 much less confusing.
1194 Added --tag-if to allow boolean operations on tags.
1195 This allows complicated logic to be clearer and more
1196 general. A great suggestion from Richard Voigt.
1198 Add broadcast/unicast information to DHCP logging.
1200 Allow --dhcp-broadcast to be unconditional.
1202 Fixed incorrect behaviour with NOT <tag> conditionals in
1203 dhcp-options. Thanks to Max Turkewitz for assistance
1206 If we send vendor-class encapsulated options based on the
1207 vendor-class supplied by the client, and no explicit
1208 vendor-class option is given, echo back the vendor-class
1211 Fix bug which stopped dnsmasq from matching both a
1212 circuitid and a remoteid. Thanks to Ignacio Bravo for
1215 Add --dhcp-proxy, which makes it possible to configure
1216 dnsmasq to use a DHCP relay agent as a full proxy, with
1217 all DHCP messages passing through the proxy. This is
1218 useful if the relay adds extra information to the packets
1219 it forwards, but cannot be configured with the RFC 5107
1220 server-override option.
1222 Added interface:<iface name> part to dhcp-range. The
1223 semantics of this are very odd at first sight, but it
1224 allows a single line of the form
1225 dhcp-range=interface:virt0,192.168.0.4,192.168.0.200
1226 to be added to dnsmasq configuration which then supplies
1227 DHCP and DNS services to that interface, without affecting
1228 what services are supplied to other interfaces and
1229 irrespective of the existance or lack of
1230 interface=<interface>
1231 lines elsewhere in the dnsmasq configuration. The idea is
1232 that such a line can be added automatically by libvirt
1233 or equivalent systems, without disturbing any manual
1236 Similarly to the above, allow --enable-tftp=<interface>
1238 Allow a TFTP root to be set separately for requests via
1239 different interfaces, --tftp-root=<path>,<interface>
1241 Correctly handle and log clashes between CNAMES and
1242 DNS names being given to DHCP leases. This fixes a bug
1243 which caused nonsense IP addresses to be logged. Thanks to
1244 Sergei Zhirikov for finding and analysing the problem.
1246 Tweak flush_log so as to avoid leaving the log
1247 file in non-blocking mode. O_NONBLOCK is a property of the
1248 file, not the process/descriptor.
1250 Fix contrib/Solaris10/create_package
1251 (/usr/man -> /usr/share/man) Thanks to Vita Batrla.
1253 Fix a problem where, if a client got a lease, then went
1254 to another subnet and got another lease, then moved back,
1255 it couldn't resume the old lease, but would instead get
1256 a new address. Thanks to Leonardo Rodrigues for spotting
1257 this and testing the fix.
1259 Fix weird bug which sometimes omitted certain characters
1260 from the start of quoted strings in dhcp-options. Thanks
1261 to Dayton Turner for spotting the problem.
1263 Add facility to redirect some domains to the standard
1264 upstream servers: this allows something like
1265 --server=/google.com/1.2.3.4 --server=/www.google.com/#
1266 which will send queries for *.google.com to 1.2.3.4,
1267 except *www.google.com which will be forwarded as usual.
1268 Thanks to AJ Weber for prompting this addition.
1270 Improve the hash-algorithm used to generate IP addresses
1271 from MAC addresses during initial DHCP address
1272 allocation. This improves performance when large numbers
1273 of hosts with similar MAC addresses all try and get an IP
1274 address at the same time. Thanks to Paul Smith for his
1277 Tweak DHCP code so that --bridge-interface can be used to
1278 select which IP alias of an interface should be used for
1279 DHCP purposes on Linux. If eth0 has an alias eth0:dhcp
1280 then adding --bridge-interface=eth0:dhcp,eth0 will use
1281 the address of eth0:dhcp to determine the correct subnet
1282 for DHCP address allocation. Thanks to Pawel Golaszewski
1283 for prompting this and Eric Cooper for further testing.
1285 Add --dhcp-generate-names. Suggestion by Ferenc Wagner.
1287 Tweak DNS server selection algorithm when there is more
1288 than one server available for a domain, eg.
1289 --server=/mydomain/1.1.1.1
1290 --server=/mydomain/2.2.2.2
1291 Thanks to Alberto Cuesta-Canada for spotting a weakness
1294 Add --max-ttl. Thanks to Fredrik Ringertz for the patch.
1296 Allow --log-facility=- to force all logging to
1297 stderr. Suggestion from Clemens Fischer.
1299 Fix regression which caused configuration like
1300 --address=/.domain.com/1.2.3.4 to be rejected. The dot to the
1301 left of the domain has been implied and not required for a
1302 long time, but it should be accepted for backward
1303 compatibility. Thanks to Andrew Burcin for spotting this.
1305 Add --rebind-domain-ok and --rebind-localhost-ok.
1306 Suggestion from Clemens Fischer.
1308 Log replies to queries of type TXT, when --log-queries
1311 Fix compiler warnings when compiled with -DNO_DHCP. Thanks
1312 to Shantanu Gadgil for the patch.
1314 Updated French translation. Thanks to Gildas Le Nadan.
1316 Updated Polish translation. Thanks to Jan Psota.
1318 Updated German translation. Thanks to Matthias Andree.
1320 Added contrib/static-arp, thanks to Darren Hoo.
1322 Fix corruption of the domain when a name from /etc/hosts
1323 overrides one supplied by a DHCP client. Thanks to Fedor
1324 Kozhevnikov for spotting the problem.
1326 Updated Spanish translation. Thanks to Chris Chatham.
1330 Work around a Linux kernel bug which insists that the
1331 length of the option passed to setsockopt must be at least
1332 sizeof(int) bytes, even if we're calling SO_BINDTODEVICE
1333 and the device name is "lo". Note that this is fixed
1334 in kernel 2.6.31, but the workaround is harmless and
1335 allows earlier kernels to be used. Also fix dnsmasq
1336 bug which reported the wrong address when this failed.
1337 Thanks to Fedor for finding this.
1339 The API for IPv6 PKTINFO changed around Linux kernel
1340 2.6.14. Workaround the case where dnsmasq is compiled
1341 against newer headers, but then run on an old kernel:
1342 necessary for some *WRT distros.
1344 Re-read the set of network interfaces when re-loading
1345 /etc/resolv.conf if --bind-interfaces is not set. This
1346 handles the case that loopback interfaces do not exist
1347 when dnsmasq is first started.
1349 Tweak the PXE code to support port 4011. This should
1350 reduce broadcasts and make things more reliable when other
1351 servers are around. It also improves inter-operability
1352 with certain clients.
1354 Make a pxe-service configuration with no filename or boot
1355 service type legal: this does a local boot. eg.
1356 pxe-service=x86PC, "Local boot"
1358 Be more conservative in detecting "A for A"
1359 queries. Dnsmasq checks if the name in a type=A query looks
1360 like a dotted-quad IP address and answers the query itself
1361 if so, rather than forwarding it. Previously dnsmasq
1362 relied in the library function inet_addr() to convert
1363 addresses, and that will accept some things which are
1364 confusing in this context, like 1.2.3 or even just
1365 1234. Now we only do A for A processing for four decimal
1366 numbers delimited by dots.
1368 A couple of tweaks to fix compilation on Solaris. Thanks
1369 to Joel Macklow for help with this.
1371 Another Solaris compilation tweak, needed for Solaris
1372 2009.06. Thanks to Lee Essen for that.
1374 Added extract packaging stuff from Lee Essen to
1377 Increased the default limit on number of leases to 1000
1378 (from 150). This is mainly a defence against DoS attacks,
1379 and for the average "one for two class C networks"
1380 installation, IP address exhaustion does that just as
1381 well. Making the limit greater than the number of IP
1382 addresses available in such an installation removes a
1383 surprise which otherwise can catch people out.
1385 Removed extraneous trailing space in the value of the
1386 DNSMASQ_TIME_REMAINING DNSMASQ_LEASE_LENGTH and
1387 DNSMASQ_LEASE_EXPIRES environment variables. Thanks to
1388 Gildas Le Nadan for spotting this.
1390 Provide the network-id tags for a DHCP transaction to
1391 the lease-change script in the environment variable
1392 DNSMASQ_TAGS. A good suggestion from Gildas Le Nadan.
1394 Add support for RFC3925 "Vendor-Identifying Vendor
1395 Options". The syntax looks like this:
1396 --dhcp-option=vi-encap:<enterprise number>, .........
1398 Add support to --dhcp-match to allow matching against
1399 RFC3925 "Vendor-Identifying Vendor Classes". The syntax
1401 --dhcp-match=tag,vi-encap<enterprise number>, <value>
1403 Add some application specific code to assist in
1404 implementing the Broadband forum TR069 CPE-WAN
1405 specification. The details are in contrib/CPE-WAN/README
1407 Increase the default DNS packet size limit to 4096, as
1408 recommended by RFC5625 section 4.4.3. This can be
1409 reconfigured using --edns-packet-max if needed. Thanks to
1410 Francis Dupont for pointing this out.
1412 Rewrite query-ids even for TSIG signed packets, since
1413 this is allowed by RFC5625 section 4.5.
1415 Use getopt_long by default on OS X. It has been supported
1416 since version 10.3.0. Thanks to Arek Dreyer for spotting
1419 Added up-to-date startup configuration for MacOSX/launchd
1420 in contrib/MacOSX-launchd. Thanks to Arek Dreyer for
1423 Fix link error when including Dbus but excluding DHCP.
1424 Thanks to Oschtan for the bug report.
1426 Updated French translation. Thanks to Gildas Le Nadan.
1428 Updated Polish translation. Thanks to Jan Psota.
1430 Updated Spanish translation. Thanks to Chris Chatham.
1432 Fixed confusion about domains, when looking up DHCP hosts
1433 in /etc/hosts. This could cause spurious "Ignoring
1434 domain..." messages. Thanks to Fedor Kozhevnikov for
1435 finding and analysing the problem.
1439 Add support for internationalised DNS. Non-ASCII characters
1440 in domain names found in /etc/hosts, /etc/ethers and
1441 /etc/dnsmasq.conf will be correctly handled by translation to
1442 punycode, as specified in RFC3490. This function is only
1443 available if dnsmasq is compiled with internationalisation
1444 support, and adds a dependency on GNU libidn. Without i18n
1445 support, dnsmasq continues to be compilable with just
1446 standard tools. Thanks to Yves Dorfsman for the
1449 Add two more environment variables for lease-change scripts:
1450 First, DNSMASQ_SUPPLIED_HOSTNAME; this is set to the hostname
1451 supplied by a client, even if the actual hostname used is
1452 over-ridden by dhcp-host or dhcp-ignore-names directives.
1453 Also DNSMASQ_RELAY_ADDRESS which gives the address of
1454 a DHCP relay, if used.
1455 Suggestions from Michael Rack.
1457 Fix regression which broke echo of relay-agent
1458 options. Thanks to Michael Rack for spotting this.
1460 Don't treat option 67 as being interchangeable with
1461 dhcp-boot parameters if it's specified as
1464 Make the code to call scripts on lease-change compile-time
1465 optional. It can be switched off by editing src/config.h
1466 or building with "make COPTS=-DNO_SCRIPT".
1468 Make the TFTP server cope with filenames from Windows/DOS
1469 which use '\' as pathname separator. Thanks to Ralf for
1472 Updated Polish translation. Thanks to Jan Psota.
1474 Warn if an IP address is duplicated in /etc/ethers. Thanks
1475 to Felix Schwarz for pointing this out.
1477 Teach --conf-dir to take an option list of file suffices
1478 which will be ignored when scanning the directory. Useful
1479 for backup files etc. Thanks to Helmut Hullen for the
1482 Add new DHCP option named tftpserver-address, which
1483 corresponds to the third argument of dhcp-boot. This
1484 allows the complete functionality of dhcp-boot to be
1485 replicated with dhcp-option. Useful when using
1488 Test which upstream nameserver to use every 10 seconds
1489 or 50 queries and not just when a query times out and
1490 is retried. This should improve performance when there
1491 is a slow nameserver in the list. Thanks to Joe for the
1494 Don't do any PXE processing, even for clients with the
1495 correct vendorclass, unless at least one pxe-prompt or
1496 pxe-service option is given. This stops dnsmasq
1497 interfering with proxy PXE subsystems when it is just
1498 the DHCP server. Thanks to Spencer Clark for spotting this.
1500 Limit the blocksize used for TFTP transfers to a value
1501 which avoids packet fragmentation, based on the MTU of the
1502 local interface. Many netboot ROMs can't cope with
1505 Honour dhcp-ignore configuration for PXE and proxy-PXE
1506 requests. Thanks to Niels Basjes for the bug report.
1508 Updated French translation. Thanks to Gildas Le Nadan.
1512 Fix security problem which allowed any host permitted to
1513 do TFTP to possibly compromise dnsmasq by remote buffer
1514 overflow when TFTP enabled. Thanks to Core Security
1515 Technologies and Iván Arce, Pablo Hernán Jorge, Alejandro
1516 Pablo Rodriguez, Martín Coco, Alberto Soliño Testa and
1517 Pablo Annetta. This problem has Bugtraq id: 36121
1520 Fix a problem which allowed a malicious TFTP client to
1521 crash dnsmasq. Thanks to Steve Grubb at Red Hat for
1522 spotting this. This problem has Bugtraq id: 36120 and
1527 Fix regression in 2.48 which disables the lease-change
1528 script. Thanks to Jose Luis Duran for spotting this.
1530 Log TFTP "file not found" errors. These were not logged,
1531 since a normal PXELinux boot generates many of them, but
1532 the lack of the messages seems to be more confusing than
1533 routinely seeing them when there is no real error.
1535 Update Spanish translation. Thanks to Chris Chatham.
1539 Archived the extensive, backwards, changelog to
1540 CHANGELOG.archive. The current changelog now runs from
1541 version 2.43 and runs conventionally.
1543 Fixed bug which broke binding of servers to physical
1544 interfaces when interface names were longer than four
1545 characters. Thanks to MURASE Katsunori for the patch.
1547 Fixed netlink code to check that messages come from the
1548 correct source, and not another userspace process. Thanks
1549 to Steve Grubb for the patch.
1551 Maintainability drive: removed bug and missing feature
1552 workarounds for some old platforms. Solaris 9, OpenBSD
1553 older than 4.1, Glibc older than 2.2, Linux 2.2.x and
1554 DBus older than 1.1.x are no longer supported.
1556 Don't read included configuration files more than once:
1557 allows complex configuration structures without problems.
1559 Mark log messages from the various subsystems in dnsmasq:
1560 messages from the DHCP subsystem now have the ident string
1561 "dnsmasq-dhcp" and messages from TFTP have ident
1562 "dnsmasq-tftp". Thanks to Olaf Westrik for the patch.
1564 Fix possible infinite DHCP protocol loop when an IP
1565 address nailed to a hostname (not a MAC address) and a
1566 host sometimes provides the name, sometimes not.
1568 Allow --addn-hosts to take a directory: all the files
1569 in the directory are read. Thanks to Phil Cornelius for
1572 Support --bridge-interface on all platforms, not just BSD.
1574 Added support for advanced PXE functions. It's now
1575 possible to define a prompt and menu options which will
1576 be displayed when a client PXE boots. It's also possible to
1577 hand-off booting to other boot servers. Proxy-DHCP, where
1578 dnsmasq just supplies the PXE information and another DHCP
1579 server does address allocation, is also allowed. See the
1580 --pxe-prompt and --pxe-service keywords. Thanks to
1581 Alkis Georgopoulos for the suggestion and Guilherme Moro
1582 and Michael Brown for assistance.
1584 Improvements to DHCP logging. Thanks to Tom Metro for
1587 Add ability to build dnsmasq without DHCP support. To do
1588 this, edit src/config.h or build with
1589 "make COPTS=-DNO_DHCP". Thanks to Mahavir Jain for the patch.
1591 Added --test command-line switch - syntax check
1592 configuration files only.
1594 Updated French translation. Thanks to Gildas Le Nadan.
1598 Updated French translation. Thanks to Gildas Le Nadan.
1600 Fixed interface enumeration code to work on NetBSD
1601 5.0. Thanks to Roy Marples for the patch.
1603 Updated config.h to use the same location for the lease
1604 file on NetBSD as the other *BSD variants. Also allow
1605 LEASEFILE and CONFFILE symbols to be overriden in CFLAGS.
1607 Handle duplicate address detection on IPv6 more
1608 intelligently. In IPv6, an interface can have an address
1609 which is not usable, because it is still undergoing DAD
1610 (such addresses are marked "tentative"). Attempting to
1611 bind to an address in this state returns an error,
1612 EADDRNOTAVAIL. Previously, on getting such an error,
1613 dnsmasq would silently abandon the address, and never
1614 listen on it. Now, it retries once per second for 20
1615 seconds before generating a fatal error. 20 seconds should
1616 be long enough for any DAD process to complete, but can be
1617 adjusted in src/config.h if necessary. Thanks to Martin
1618 Krafft for the bug report.
1620 Add DBus introspection. Patch from Jeremy Laine.
1622 Update Dbus configuration file. Patch from Colin Walters.
1624 http://bugs.freedesktop.org/show_bug.cgi?id=18961
1626 Support arbitrarily encapsulated DHCP options, suggestion
1627 and initial patch from Samium Gromoff. This is useful for
1628 (eg) gPXE, which expect all its private options to be
1629 encapsulated inside a single option 175. So, eg,
1631 dhcp-option = encap:175, 190, "iscsi-client0"
1632 dhcp-option = encap:175, 191, "iscsi-client0-secret"
1634 will provide iSCSI parameters to gPXE.
1636 Enhance --dhcp-match to allow testing of the contents of a
1637 client-sent option, as well as its presence. This
1638 application in mind for this is RFC 4578
1639 client-architecture specifiers, but it's generally useful.
1640 Joey Korkames suggested the enhancement.
1642 Move from using the IP_XMIT_IF ioctl to IP_BOUND_IF on
1643 OpenSolaris. Thanks to Bastian Machek for the heads-up.
1645 No longer complain about blank lines in
1646 /etc/ethers. Thanks to Jon Nelson for the patch.
1648 Fix binding of servers to physical devices, eg
1649 --server=/domain/1.2.3.4@eth0 which was broken from 2.43
1650 onwards unless --query-port=0 set. Thanks to Peter Naulls
1653 Reply to DHCPINFORM requests even when the supplied ciaddr
1654 doesn't fall in any dhcp-range. In this case it's not
1655 possible to supply a complete configuration, but
1656 individually-configured options (eg PAC) may be useful.
1658 Allow the source address of an alias to be a range:
1659 --alias=192.168.0.0,10.0.0.0,255.255.255.0 maps the whole
1660 subnet 192.168.0.0->192.168.0.255 to 10.0.0.0->10.0.0.255,
1662 --alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
1663 maps only the 192.168.0.10->192.168.0.40 region. Thanks to
1664 Ib Uhrskov for the suggestion.
1666 Don't dynamically allocate DHCP addresses which may break
1667 Windows. Addresses which end in .255 or .0 are broken in
1668 Windows even when using supernetting.
1669 --dhcp-range=192.168.0.1,192.168.1.254,255,255,254.0 means
1670 192.168.0.255 is a valid IP address, but not for Windows.
1671 See Microsoft KB281579. We therefore no longer allocate
1672 these addresses to avoid hard-to-diagnose problems.
1674 Update Polish translation. Thanks to Jan Psota.
1676 Delete the PID-file when dnsmasq shuts down. Note that by
1677 this time, dnsmasq is normally not running as root, so
1678 this will fail if the PID-file is stored in a root-owned
1679 directory; such failure is silently ignored. To take
1680 advantage of this feature, the PID-file must be stored in a
1681 directory owned and write-able by the user running
1686 Allow --bootp-dynamic to take a netid tag, so that it may
1687 be selectively enabled. Thanks to Olaf Westrik for the
1690 Remove ISC-leasefile reading code. This has been
1691 deprecated for a long time, and last time I removed it, it
1692 ended up going back by request of one user. This time,
1693 it's gone for good; otherwise it would need to be
1694 re-worked to support multiple domains (see below).
1696 Support DHCP clients in multiple DNS domains. This is a
1697 long-standing request. Clients are assigned to a domain
1698 based in their IP address.
1700 Add --dhcp-fqdn flag, which changes behaviour if DNS names
1701 assigned to DHCP clients. When this is set, there must be
1702 a domain associated with each client, and only
1703 fully-qualified domain names are added to the DNS. The
1704 advantage is that the only the FQDN needs to be unique,
1705 so that two or more DHCP clients can share a hostname, as
1706 long as they are in different domains.
1708 Set environment variable DNSMASQ_DOMAIN when invoking
1709 lease-change script. This may be useful information to
1710 have now that it's variable.
1712 Tighten up data-checking code for DNS packet
1713 handling. Thanks to Steve Dodd who found certain illegal
1714 packets which could crash dnsmasq. No memory overwrite was
1715 possible, so this is not a security issue beyond the DoS
1718 Update example config dhcp option 47, the previous
1719 suggestion generated an illegal, zero-length,
1720 option. Thanks to Matthias Andree for finding this.
1722 Rewrite hosts-file reading code to remove the limit of
1723 1024 characters per line. John C Meuser found this.
1725 Create a net-id tag with the name of the interface on
1726 which the DHCP request was received.
1728 Fixed minor memory leak in DBus code, thanks to Jeremy
1729 Laine for the patch.
1731 Emit DBus signals as the DHCP lease database
1732 changes. Thanks to Jeremy Laine for the patch.
1734 Allow for more that one MAC address in a dhcp-host
1735 line. This configuration tells dnsmasq that it's OK to
1736 abandon a DHCP lease of the fixed address to one MAC
1737 address, if another MAC address in the dhcp-host statement
1738 asks for an address. This is useful to give a fixed
1739 address to a host which has two network interfaces
1740 (say, a laptop with wired and wireless interfaces.)
1741 It's very important to ensure that only one interface
1742 at a time is up, since dnsmasq abandons the first lease
1743 and re-uses the address before the leased time has
1744 elapsed. John Gray suggested this.
1746 Tweak the response to a DHCP request packet with a wrong
1747 server-id when --dhcp-authoritative is set; dnsmasq now
1748 returns a DHCPNAK, rather than silently ignoring the
1749 packet. Thanks to Chris Marget for spotting this
1752 Add --cname option. This provides a limited alias
1753 function, usable for DHCP names. Thanks to AJ Weber for
1754 suggestions on this.
1756 Updated contrib/webmin with latest version from Neil
1759 Updated Polish translation. Thanks to Jan Psota.
1761 Correct the text names for DHCP options 64 and 65 to be
1762 "nis+-domain" and "nis+-servers".
1764 Updated Spanish translation. Thanks to Chris Chatham.
1766 Force re-reading of /etc/resolv.conf when an "interface
1771 Fix total DNS failure in release 2.44 unless --min-port
1772 specified. Thanks to Steven Barth and Grant Coady for
1773 bugreport. Also reject out-of-range port spec, which could
1774 break things too: suggestion from Gilles Espinasse.
1778 Fix crash when unknown client attempts to renew a DHCP
1779 lease, problem introduced in version 2.43. Thanks to
1780 Carlos Carvalho for help chasing this down.
1782 Fix potential crash when a host which doesn't have a lease
1783 does DHCPINFORM. Again introduced in 2.43. This bug has
1784 never been reported in the wild.
1786 Fix crash in netlink code introduced in 2.43. Thanks to
1787 Jean Wolter for finding this.
1789 Change implementation of min_port to work even if min-port
1792 Patch to enable compilation of latest Mac OS X. Thanks to
1795 Update Spanish translation. Thanks to Christopher Chatham.
1799 Updated Polish translation. Thanks to Jan Psota.
1801 Flag errors when configuration options are repeated
1804 Further tweaks for GNU/kFreeBSD
1806 Add --no-wrap to msgmerge call - provides nicer .po file
1809 Honour lease-time spec in dhcp-host lines even for
1810 BOOTP. The user is assumed to known what they are doing in
1811 this case. (Hosts without the time spec still get infinite
1812 leases for BOOTP, over-riding the default in the
1813 dhcp-range.) Thanks to Peter Katzmann for uncovering this.
1815 Fix problem matching relay-agent ids. Thanks to Michael
1816 Rack for the bug report.
1818 Add --naptr-record option. Suggestion from Johan
1821 Implement RFC 5107 server-id-override DHCP relay agent
1824 Apply patches from Stefan Kruger for compilation on
1825 Solaris 10 under Sun studio.
1827 Yet more tweaking of Linux capability code, to suppress
1828 pointless wingeing from kernel 2.6.25 and above.
1830 Improve error checking during startup. Previously, some
1831 errors which occurred during startup would be worked
1832 around, with dnsmasq still starting up. Some were logged,
1833 some silent. Now, they all cause a fatal error and dnsmasq
1834 terminates with a non-zero exit code. The errors are those
1835 associated with changing uid and gid, setting process
1836 capabilities and writing the pidfile. Thanks to Uwe
1837 Gansert and the Suse security team for pointing out
1838 this improvement, and Bill Reimers for good implementation
1841 Provide NO_LARGEFILE compile option to switch off largefile
1842 support when compiling against versions of uclibc which
1843 don't support it. Thanks to Stephane Billiart for the patch.
1845 Implement random source ports for interactions with
1846 upstream nameservers. New spoofing attacks have been found
1847 against nameservers which do not do this, though it is not
1848 clear if dnsmasq is vulnerable, since to doesn't implement
1849 recursion. By default dnsmasq will now use a different
1850 source port (and socket) for each query it sends
1851 upstream. This behaviour can suppressed using the
1852 --query-port option, and the old default behaviour
1853 restored using --query-port=0. Explicit source-port
1854 specifications in --server configs are still honoured.
1856 Replace the random number generator, for better
1857 security. On most BSD systems, dnsmasq uses the
1858 arc4random() RNG, which is secure, but on other platforms,
1859 it relied on the C-library RNG, which may be
1860 guessable and therefore allow spoofing. This release
1861 replaces the libc RNG with the SURF RNG, from Daniel
1862 J. Berstein's DJBDNS package.
1864 Don't attempt to change user or group or set capabilities
1865 if dnsmasq is run as a non-root user. Without this, the
1866 change from soft to hard errors when these fail causes
1867 problems for non-root daemons listening on high
1868 ports. Thanks to Patrick McLean for spotting this.
1870 Updated French translation. Thanks to Gildas Le Nadan.
1874 The changelog for version 2.42 and earlier is
1875 available in CHANGELOG.archive.
projects / people / ms / dnsmasq.git / blob