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
72 boot on systems without an RTC, whilst allowing DNS
73 queries before the clock is valid so that NTP can run.
74 Thanks to Kevin Darbyshire-Bryant for developing this idea.
76 Add --tftp-no-fail option. Thanks to Stefan Tomanek for
79 Fix crash caused by looking up servers.bind, CHAOS text
80 record, when more than about five --servers= lines are
81 in the dnsmasq config. This causes memory corruption
82 which causes a crash later. Thanks to Matt Coddington for
83 sterling work chasing this down.
85 Fix crash on receipt of certain malformed DNS requests.
86 Thanks to Nick Sampanis for spotting the problem.
88 Fix crash in authoritative DNS code, if a .arpa zone
89 is declared as authoritative, and then a PTR query which
90 is not to be treated as authoritative arrived. Normally,
91 directly declaring .arpa zone as authoritative is not
92 done, so this crash wouldn't be seen. Instead the
93 relevant .arpa zone should be specified as a subnet
94 in the auth-zone declaration. Thanks to Johnny S. Lee
95 for the bugreport and initial patch.
97 Fix authoritative DNS code to correctly reply to NS
98 and SOA queries for .arpa zones for which we are
99 declared authoritative by means of a subnet in auth-zone.
100 Previously we provided correct answers to PTR queries
101 in such zones (including NS and SOA) but not direct
102 NS and SOA queries. Thanks to Johnny S. Lee for
103 pointing out the problem.
107 Add ra-advrouter mode, for RFC-3775 mobile IPv6 support.
109 Add support for "ipsets" in *BSD, using pf. Thanks to
110 Sven Falempim for the patch.
112 Fix race condition which could lock up dnsmasq when an
113 interface goes down and up rapidly. Thanks to Conrad
114 Kostecki for helping to chase this down.
116 Add DBus methods SetFilterWin2KOption and SetBogusPrivOption
117 Thanks to the Smoothwall project for the patch.
119 Fix failure to build against Nettle-3.0. Thanks to Steven
120 Barth for spotting this and finding the fix.
122 When assigning existing DHCP leases to intefaces by comparing
123 networks, handle the case that two or more interfaces have the
124 same network part, but different prefix lengths (favour the
125 longer prefix length.) Thanks to Lung-Pin Chang for the
128 Add a mode which detects and removes DNS forwarding loops, ie
129 a query sent to an upstream server returns as a new query to
130 dnsmasq, and would therefore be forwarded again, resulting in
131 a query which loops many times before being dropped. Upstream
132 servers which loop back are disabled and this event is logged.
133 Thanks to Smoothwall for their sponsorship of this feature.
135 Extend --conf-dir to allow filtering of files. So
136 --conf-dir=/etc/dnsmasq.d,\*.conf
137 will load all the files in /etc/dnsmasq.d which end in .conf
139 Fix bug when resulted in NXDOMAIN answers instead of NODATA in
142 Fix bug which caused dnsmasq to become unresponsive if it
143 failed to send packets due to a network interface disappearing.
144 Thanks to Niels Peen for spotting this.
146 Fix problem with --local-service option on big-endian platforms
147 Thanks to Richard Genoud for the patch.
151 Subtle change to error handling to help DNSSEC validation
152 when servers fail to provide NODATA answers for
153 non-existent DS records.
155 Tweak code which removes DNSSEC records from answers when
156 not required. Fixes broken answers when additional section
157 has real records in it. Thanks to Marco Davids for the bug
160 Fix DNSSEC validation of ANY queries. Thanks to Marco Davids
161 for spotting that too.
163 Fix total DNS failure and 100% CPU use if cachesize set to zero,
164 regression introduced in 2.69. Thanks to James Hunt and
165 the Ubuntu crowd for assistance in fixing this.
169 Fix crash, introduced in 2.69, on TCP request when dnsmasq
170 compiled with DNSSEC support, but running without DNSSEC
171 enabled. Thanks to Manish Sing for spotting that one.
173 Fix regression which broke ipset functionality. Thanks to
174 Wang Jian for the bug report.
178 Implement dynamic interface discovery on *BSD. This allows
179 the contructor: syntax to be used in dhcp-range for DHCPv6
180 on the BSD platform. Thanks to Matthias Andree for
181 valuable research on how to implement this.
183 Fix infinite loop associated with some --bogus-nxdomain
184 configs. Thanks fogobogo for the bug report.
186 Fix missing RA RDNS option with configuration like
187 --dhcp-option=option6:23,[::] Thanks to Tsachi Kimeldorfer
188 for spotting the problem.
190 Add [fd00::] and [fe80::] as special addresses in DHCPv6
191 options, analogous to [::]. [fd00::] is replaced with the
192 actual ULA of the interface on the machine running
193 dnsmasq, [fe80::] with the link-local address.
194 Thanks to Tsachi Kimeldorfer for championing this.
196 DNSSEC validation and caching. Dnsmasq needs to be
197 compiled with this enabled, with
199 make dnsmasq COPTS=-DHAVE_DNSSEC
201 this add dependencies on the nettle crypto library and the
202 gmp maths library. It's possible to have these linked
205 make dnsmasq COPTS='-DHAVE_DNSSEC -DHAVE_DNSSEC_STATIC'
207 which bloats the dnsmasq binary, but saves the size of
208 the shared libraries which are much bigger.
210 To enable, DNSSEC, you will need a set of
211 trust-anchors. Now that the TLDs are signed, this can be
212 the keys for the root zone, and for convenience they are
213 included in trust-anchors.conf in the dnsmasq
214 distribution. You should of course check that these are
215 legitimate and up-to-date. So, adding
217 conf-file=/path/to/trust-anchors.conf
220 to your config is all thats needed to get things
221 working. The upstream nameservers have to be DNSSEC-capable
222 too, of course. Many ISP nameservers aren't, but the
223 Google public nameservers (8.8.8.8 and 8.8.4.4) are.
224 When DNSSEC is configured, dnsmasq validates any queries
225 for domains which are signed. Query results which are
226 bogus are replaced with SERVFAIL replies, and results
227 which are correctly signed have the AD bit set. In
228 addition, and just as importantly, dnsmasq supplies
229 correct DNSSEC information to clients which are doing
230 their own validation, and caches DNSKEY, DS and RRSIG
231 records, which significantly improve the performance of
232 downstream validators. Setting --log-queries will show
235 If a domain is returned from an upstream nameserver without
236 DNSSEC signature, dnsmasq by default trusts this. This
237 means that for unsigned zone (still the majority) there
238 is effectively no cost for having DNSSEC enabled. Of course
239 this allows an attacker to replace a signed record with a
240 false unsigned record. This is addressed by the
241 --dnssec-check-unsigned flag, which instructs dnsmasq
242 to prove that an unsigned record is legitimate, by finding
243 a secure proof that the zone containing the record is not
244 signed. Doing this has costs (typically one or two extra
245 upstream queries). It also has a nasty failure mode if
246 dnsmasq's upstream nameservers are not DNSSEC capable.
247 Without --dnssec-check-unsigned using such an upstream
248 server will simply result in not queries being validated;
249 with --dnssec-check-unsigned enabled and a
250 DNSSEC-ignorant upstream server, _all_ queries will fail.
252 Note that DNSSEC requires that the local time is valid and
253 accurate, if not then DNSSEC validation will fail. NTP
254 should be running. This presents a problem for routers
255 without a battery-backed clock. To set the time needs NTP
256 to do DNS lookups, but lookups will fail until NTP has run.
257 To address this, there's a flag, --dnssec-no-timecheck
258 which disables the time checks (only) in DNSSEC. When dnsmasq
259 is started and the clock is not synced, this flag should
260 be used. As soon as the clock is synced, SIGHUP dnsmasq.
261 The SIGHUP clears the cache of partially-validated data and
262 resets the no-timecheck flag, so that all DNSSEC checks
263 henceforward will be complete.
265 The development of DNSSEC in dnsmasq was started by
266 Giovanni Bajo, to whom huge thanks are owed. It has been
267 supported by Comcast, whose techfund grant has allowed for
268 an invaluable period of full-time work to get it to
271 Add --rev-server. Thanks to Dave Taht for suggesting this.
273 Add --servers-file. Allows dynamic update of upstream servers
274 full access to configuration.
276 Add --local-service. Accept DNS queries only from hosts
277 whose address is on a local subnet, ie a subnet for which
278 an interface exists on the server. This option
279 only has effect if there are no --interface --except-interface,
280 --listen-address or --auth-server options. It is intended
281 to be set as a default on installation, to allow
282 unconfigured installations to be useful but also safe from
283 being used for DNS amplification attacks.
285 Fix crashes in cache_get_cname_target() when dangling CNAMEs
286 encountered. Thanks to Andy and the rt-n56u project for
287 find this and helping to chase it down.
289 Fix wrong RCODE in authoritative DNS replies to PTR queries. The
290 correct answer was included, but the RCODE was set to NXDOMAIN.
291 Thanks to Craig McQueen for spotting this.
293 Make statistics available as DNS queries in the .bind TLD as
294 well as logging them.
298 Use random addresses for DHCPv6 temporary address
299 allocations, instead of algorithmically determined stable
302 Fix bug which meant that the DHCPv6 DUID was not available
303 in DHCP script runs during the lifetime of the dnsmasq
304 process which created the DUID de-novo. Once the DUID was
305 created and stored in the lease file and dnsmasq
306 restarted, this bug disappeared.
308 Fix bug introduced in 2.67 which could result in erroneous
309 NXDOMAIN returns to CNAME queries.
311 Fix build failures on MacOS X and openBSD.
313 Allow subnet specifications in --auth-zone to be interface
314 names as well as address literals. This makes it possible
315 to configure authoritative DNS when local address ranges
316 are dynamic and works much better than the previous
317 work-around which exempted contructed DHCP ranges from the
318 IP address filtering. As a consequence, that work-around
319 is removed. Under certain circumstances, this change wil
320 break existing configuration: if you're relying on the
321 contructed-range exception, you need to change --auth-zone
322 to specify the same interface as is used to construct your
323 DHCP ranges, probably with a trailing "/6" like this:
324 --auth-zone=example.com,eth0/6 to limit the addresses to
325 IPv6 addresses of eth0.
327 Fix problems when advertising deleted IPv6 prefixes. If
328 the prefix is deleted (rather than replaced), it doesn't
329 get advertised with zero preferred time. Thanks to Tsachi
332 Fix segfault with some locally configured CNAMEs. Thanks
333 to Andrew Childs for spotting the problem.
335 Fix memory leak on re-reading /etc/hosts and friends,
338 Check the arrival interface of incoming DNS and TFTP
339 requests via IPv6, even in --bind-interfaces mode. This
340 isn't possible for IPv4 and can generate scary warnings,
341 but as it's always possible for IPv6 (the API always
342 exists) then we should do it always.
344 Tweak the rules on prefix-lengths in --dhcp-range for
345 IPv6. The new rule is that the specified prefix length
346 must be larger than or equal to the prefix length of the
347 corresponding address on the local interface.
351 Fix crash if upstream server returns SERVFAIL when
352 --conntrack in use. Thanks to Giacomo Tazzari for finding
353 this and supplying the patch.
355 Repair regression in 2.64. That release stopped sending
356 lease-time information in the reply to DHCPINFORM
357 requests, on the correct grounds that it was a standards
358 violation. However, this broke the dnsmasq-specific
359 dhcp_lease_time utility. Now, DHCPINFORM returns
360 lease-time only if it's specifically requested
361 (maintaining standards) and the dhcp_lease_time utility
362 has been taught to ask for it (restoring functionality).
364 Fix --dhcp-match, --dhcp-vendorclass and --dhcp-userclass
365 to work with BOOTP and well as DHCP. Thanks to Peter
366 Korsgaard for spotting the problem.
368 Add --synth-domain. Thanks to Vishvananda Ishaya for
371 Fix failure to compile ipset.c if old kernel headers are
372 in use. Thanks to Eugene Rudoy for pointing this out.
374 Handle IPv4 interface-address labels in Linux. These are
375 often used to emulate the old IP-alias addresses. Before,
376 using --interface=eth0 would service all the addresses of
377 eth0, including ones configured as aliases, which appear
378 in ifconfig as eth0:0. Now, only addresses with the label
379 eth0 are active. This is not backwards compatible: if you
380 want to continue to bind the aliases too, you need to add
381 eg. --interface=eth0:0 to the config.
383 Fix "failed to set SO_BINDTODEVICE on DHCP socket: Socket
384 operation on non-socket" error on startup with
385 configurations which have exactly one --interface option
386 and do RA but _not_ DHCPv6. Thanks to Trever Adams for the
389 Generalise --interface-name to cope with IPv6 addresses
390 and multiple addresses per interface per address family.
392 Fix option parsing for --dhcp-host, which was generating a
393 spurious error when all seven possible items were
394 included. Thanks to Zhiqiang Wang for the bug report.
396 Remove restriction on prefix-length in --auth-zone. Thanks
397 to Toke Hoiland-Jorgensen for suggesting this.
399 Log when the maximum number of concurrent DNS queries is
400 reached. Thanks to Marcelo Salhab Brogliato for the patch.
402 If wildcards are used in --interface, don't assume that
403 there will only ever be one available interface for DHCP
404 just because there is one at start-up. More may appear, so
405 we can't use SO_BINDTODEVICE. Thanks to Natrio for the bug
408 Increase timeout/number of retries in TFTP to accomodate
409 AudioCodes Voice Gateways doing streaming writes to flash.
410 Thanks to Damian Kaczkowski for spotting the problem.
412 Fix crash with empty DHCP string options when adding zero
413 terminator. Thanks to Patrick McLean for the bug report.
415 Allow hostnames to start with a number, as allowed in
416 RFC-1123. Thanks to Kyle Mestery for the patch.
418 Fixes to DHCP FQDN option handling: don't terminate FQDN
419 if domain not known and allow a FQDN option with blank
420 name to request that a FQDN option is returned in the
421 reply. Thanks to Roy Marples for the patch.
423 Make --clear-on-reload apply to setting upstream servers
426 When the address which triggered the construction of an
427 advertised IPv6 prefix disappears, continue to advertise
428 the prefix for up to 2 hours, with the preferred lifetime
429 set to zero. This satisfies RFC 6204 4.3 L-13 and makes
430 things work better if a prefix disappears without being
431 deprecated first. Thanks to Uwe Schindler for persuasively
434 Fix MAC address enumeration on *BSD. Thanks to Brad Smith
437 Support RFC-4242 information-refresh-time options in the
438 reply to DHCPv6 information-request. The lease time of the
439 smallest valid dhcp-range is sent. Thanks to Uwe Schindler
442 Make --listen-address higher priority than --except-interface
443 in all circumstances. Thanks to Thomas Hood for the bugreport.
445 Provide independent control over which interfaces get TFTP
446 service. If enable-tftp is given a list of interfaces, then TFTP
447 is provided on those. Without the list, the previous behaviour
448 (provide TFTP to the same interfaces we provide DHCP to)
449 is retained. Thanks to Lonnie Abelbeck for the suggestion.
451 Add --dhcp-relay config option. Many thanks to vtsl.net
452 for sponsoring this development.
454 Fix crash with empty tag: in --dhcp-range. Thanks to
455 Kaspar Schleiser for the bug report.
457 Add "baseline" and "bloatcheck" makefile targets, for
458 revealing size changes during development. Thanks to
459 Vladislav Grishenko for the patch.
461 Cope with DHCPv6 clients which send REQUESTs without
462 address options - treat them as SOLICIT with rapid commit.
464 Support identification of clients by MAC address in
465 DHCPv6. When using a relay, the relay must support RFC
466 6939 for this to work. It always works for directly
467 connected clients. Thanks to Vladislav Grishenko
468 for prompting this feature.
470 Remove the rule for constructed DHCP ranges that the local
471 address must be either the first or last address in the
472 range. This was originally to avoid SLAAC addresses, but
473 we now explicitly autoconfig and privacy addresses instead.
475 Update Polish translation. Thanks to Jan Psota.
477 Fix problem in DHCPv6 vendorclass/userclass matching
478 code. Thanks to Tanguy Bouzeloc for the patch.
480 Update Spanish transalation. Thanks to Vicente Soriano.
482 Add --ra-param option. Thanks to Vladislav Grishenko for
485 Add --add-subnet configuration, to tell upstream DNS
486 servers where the original client is. Thanks to DNSthingy
487 for sponsoring this feature.
489 Add --quiet-dhcp, --quiet-dhcp6 and --quiet-ra. Thanks to
490 Kevin Darbyshire-Bryant for the initial patch.
492 Allow A/AAAA records created by --interface-name to be the
493 target of --cname. Thanks to Hadmut Danisch for the
496 Avoid treating a --dhcp-host which has an IPv6 address
497 as eligable for use with DHCPv4 on the grounds that it has
498 no address, and vice-versa. Thanks to Yury Konovalov for
499 spotting the problem.
501 Do a better job caching dangling CNAMEs. Thanks to Yves
502 Dorfsman for spotting the problem.
506 Add the ability to act as an authoritative DNS
507 server. Dnsmasq can now answer queries from the wider 'net
508 with local data, as long as the correct NS records are set
509 up. Only local data is provided, to avoid creating an open
510 DNS relay. Zone transfer is supported, to allow secondary
511 servers to be configured.
513 Add "constructed DHCP ranges" for DHCPv6. This is intended
514 for IPv6 routers which get prefixes dynamically via prefix
515 delegation. With suitable configuration, stateful DHCPv6
516 and RA can happen automatically as prefixes are delegated
517 and then deprecated, without having to re-write the
518 dnsmasq configuration file or restart the daemon. Thanks to
519 Steven Barth for extensive testing and development work on
522 Fix crash on startup on Solaris 11. Regression probably
523 introduced in 2.61. Thanks to Geoff Johnstone for the
526 Add code to make behaviour for TCP DNS requests that same
527 as for UDP requests, when a request arrives for an allowed
528 address, but via a banned interface. This change is only
529 active on Linux, since the relevant API is missing (AFAIK)
530 on other platforms. Many thanks to Tomas Hozza for
531 spotting the problem, and doing invaluable discovery of
532 the obscure and undocumented API required for the solution.
534 Don't send the default DHCP option advertising dnsmasq as
535 the local DNS server if dnsmasq is configured to not act
536 as DNS server, or it's configured to a non-standard port.
538 Add DNSMASQ_CIRCUIT_ID, DNSMASQ_SUBCRIBER_ID,
539 DNSMASQ_REMOTE_ID variables to the environment of the
540 lease-change script (and the corresponding Lua). These hold
541 information inserted into the DHCP request by a DHCP relay
542 agent. Thanks to Lakefield Communications for providing a
543 bounty for this addition.
545 Fixed crash, introduced in 2.64, whilst handling DHCPv6
546 information-requests with some common configurations.
547 Thanks to Robert M. Albrecht for the bug report and
550 Add --ipset option. Thanks to Jason A. Donenfeld for the
553 Don't erroneously reject some option names in --dhcp-match
554 options. Thanks to Benedikt Hochstrasser for the bug report.
556 Allow a trailing '*' wildcard in all interface-name
557 configurations. Thanks to Christian Parpart for the patch.
559 Handle the situation where libc headers define
560 SO_REUSEPORT, but the kernel in use doesn't, to cope with
561 the introduction of this option to Linux. Thanks to Rich
562 Felker for the bug report.
564 Update Polish translation. Thanks to Jan Psota.
566 Fix crash if the configured DHCP lease limit is
567 reached. Regression occurred in 2.61. Thanks to Tsachi for
570 Update the French translation. Thanks to Gildas le Nadan.
574 Fix regression which broke forwarding of queries sent via
575 TCP which are not for A and AAAA and which were directed to
576 non-default servers. Thanks to Niax for the bug report.
578 Fix failure to build with DHCP support excluded. Thanks to
579 Gustavo Zacarias for the patch.
581 Fix nasty regression in 2.64 which completely broke cacheing.
585 Handle DHCP FQDN options with all flag bits zero and
586 --dhcp-client-update set. Thanks to Bernd Krumbroeck for
587 spotting the problem.
589 Finesse the check for /etc/hosts names which conflict with
590 DHCP names. Previously a name/address pair in /etc/hosts
591 which didn't match the name/address of a DHCP lease would
592 generate a warning. Now that only happesn if there is not
593 also a match. This allows multiple addresses for a name in
594 /etc/hosts with one of them assigned via DHCP.
596 Fix broken vendor-option processing for BOOTP. Thanks to
597 Hans-Joachim Baader for the bug report.
599 Don't report spurious netlink errors, regression in
600 2.63. Thanks to Vladislav Grishenko for the patch.
602 Flag DHCP or DHCPv6 in starup logging. Thanks to
603 Vladislav Grishenko for the patch.
605 Add SetServersEx method in DBus interface. Thanks to Dan
606 Williams for the patch.
608 Add SetDomainServers method in DBus interface. Thanks to
609 Roy Marples for the patch.
611 Fix build with later Lua libraries. Thansk to Cristian
612 Rodriguez for the patch.
614 Add --max-cache-ttl option. Thanks to Dennis Kaarsemaker
617 Fix breakage of --host-record parsing, resulting in
618 infinte loop at startup. Regression in 2.63. Thanks to
619 Haim Gelfenbeyn for spotting this.
621 Set SO_REUSEADDRESS and SO_V6ONLY options on the DHCPv6
622 socket, this allows multiple instances of dnsmasq on a
623 single machine, in the same way as for DHCPv4. Thanks to
624 Gene Czarcinski and Vladislav Grishenko for work on this.
626 Fix DHCPv6 to do access control correctly when it's
627 configured with --listen-address. Thanks to
628 Gene Czarcinski for sorting this out.
630 Add a "wildcard" dhcp-range which works for any IPv6
631 subnet, --dhcp-range=::,static Useful for Stateless
632 DHCPv6. Thanks to Vladislav Grishenko for the patch.
634 Don't include lease-time in DHCPACK replies to DHCPINFORM
635 queries, since RFC-2131 says we shouldn't. Thanks to
636 Wouter Ibens for pointing this out.
638 Makefile tweak to do dependency checking on header files.
639 Thanks to Johan Peeters for the patch.
641 Check interface for outgoing unsolicited router
642 advertisements, rather than relying on interface address
643 configuration. Thanks to Gene Czarinski for the patch.
645 Handle better attempts to transmit on interfaces which are
646 still doing DAD, and specifically do not just transmit
647 without setting source address and interface, since this
648 can cause very puzzling effects when a router
649 advertisement goes astray. Thanks again to Gene Czarinski.
651 Get RA timers right when there is more than one
652 dhcp-range on a subnet.
656 Do duplicate dhcp-host address check in --test mode.
658 Check that tftp-root directories are accessible before
659 start-up. Thanks to Daniel Veillard for the initial patch.
661 Allow more than one --tfp-root flag. The per-interface
662 stuff is pointless without that.
664 Add --bind-dynamic. A hybrid mode between the default and
665 --bind-interfaces which copes with dynamically created
668 A couple of fixes to the build system for Android. Thanks
669 to Metin Kaya for the patches.
671 Remove the interface:<interface> argument in --dhcp-range, and
672 the interface argument to --enable-tftp. These were a
673 still-born attempt to allow automatic isolated
674 configuration by libvirt, but have never (to my knowledge)
675 been used, had very strange semantics, and have been
676 superceded by other mechanisms.
678 Fixed bug logging filenames when duplicate dhcp-host
679 addresses are found. Thanks to John Hanks for the patch.
681 Fix regression in 2.61 which broke caching of CNAME
682 chains. Thanks to Atul Gupta for the bug report.
684 Allow the target of a --cname flag to be another --cname.
686 Teach DHCPv6 about the RFC 4242 information-refresh-time
687 option, and add parsing if the minutes, hours and days
688 format for options. Thanks to Francois-Xavier Le Bail for
691 Allow "w" (for week) as multiplier in lease times, as well
692 as seconds, minutes, hours and days. Álvaro Gámez Machado
693 spotted the ommission.
695 Update French translation. Thanks to Gildas Le Nadan.
697 Allow a DBus service name to be given with --enable-dbus
698 which overrides the default,
699 uk.org.thekelleys.dnsmasq. Thanks to Mathieu
700 Trudel-Lapierre for the patch.
702 Set the "prefix on-link" bit in Router
703 Advertisements. Thanks to Gui Iribarren for the patch.
707 Update German translation. Thanks to Conrad Kostecki.
709 Cope with router-solict packets wich don't have a valid
710 source address. Thanks to Vladislav Grishenko for the patch.
712 Fixed bug which caused missing periodic router
713 advertisements with some configurations. Thanks to
714 Vladislav Grishenko for the patch.
716 Fixed bug which broke DHCPv6/RA with prefix lengths
717 which are not divisible by 8. Thanks to Andre Coetzee
720 Fix non-response to router-solicitations when
721 router-advertisement configured, but DHCPv6 not
722 configured. Thanks to Marien Zwart for the patch.
724 Add --dns-rr, to allow arbitrary DNS resource records.
726 Fixed bug which broke RA scheduling when an interface had
727 two addresses in the same network. Thanks to Jim Bos for
728 his help nailing this.
731 Re-write interface discovery code on *BSD to use
732 getifaddrs. This is more portable, more straightforward,
733 and allows us to find the prefix length for IPv6
736 Add ra-names, ra-stateless and slaac keywords for DHCPv6.
737 Dnsmasq can now synthesise AAAA records for dual-stack
738 hosts which get IPv6 addresses via SLAAC. It is also now
739 possible to use SLAAC and stateless DHCPv6, and to
740 tell clients to use SLAAC addresses as well as DHCP ones.
741 Thanks to Dave Taht for help with this.
743 Add --dhcp-duid to allow DUID-EN uids to be used.
745 Explicity send DHCPv6 replies to the correct port, instead
746 of relying on clients to send requests with the correct
747 source address, since at least one client in the wild gets
748 this wrong. Thanks to Conrad Kostecki for help tracking
751 Send a preference value of 255 in DHCPv6 replies when
752 --dhcp-authoritative is in effect. This tells clients not
753 to wait around for other DHCP servers.
755 Better logging of DHCPv6 options.
757 Add --host-record. Thanks to Rob Zwissler for the
760 Invoke the DHCP script with action "tftp" when a TFTP file
761 transfer completes. The size of the file, address to which
762 it was sent and complete pathname are supplied. Note that
763 version 2.60 introduced some script incompatibilties
764 associated with DHCPv6, and this is a further change. To
765 be safe, scripts should ignore unknown actions, and if
766 not IPv6-aware, should exit if the environment
767 variable DNSMASQ_IAID is set. The use-case for this is
768 to track netboot/install. Suggestion from Shantanu
771 Update contrib/port-forward/dnsmasq-portforward to reflect
774 Set the environment variable DNSMASQ_LOG_DHCP when running
775 the script id --log-dhcp is in effect, so that script can
776 taylor their logging verbosity. Suggestion from Malte
779 Arrange that addresses specified with --listen-address
780 work even if there is no interface carrying the
781 address. This is chiefly useful for IPv4 loopback
782 addresses, where any address in 127.0.0.0/8 is a valid
783 loopback address, but normally only 127.0.0.1 appears on
784 the lo interface. Thanks to Mathieu Trudel-Lapierre for
785 the idea and initial patch.
787 Fix crash, introduced in 2.60, when a DHCPINFORM is
788 received from a network which has no valid dhcp-range.
789 Thanks to Stephane Glondu for the bug report.
791 Add a new DHCP lease time keyword, "deprecated" for
792 --dhcp-range. This is only valid for IPv6, and sets the
793 preffered lease time for both DHCP and RA to zero. The
794 effect is that clients can continue to use the address
795 for existing connections, but new connections will use
796 other addresses, if they exist. This makes hitless
797 renumbering at least possible.
799 Fix bug in address6_available() which caused DHCPv6 lease
800 aquisition to fail if more than one dhcp-range in use.
802 Provide RDNSS and DNSSL data in router advertisements,
803 using the settings provided for DHCP options
804 option6:domain-search and option6:dns-server.
806 Tweak logo/favicon.ico to add some transparency. Thanks to
807 SamLT for work on this.
809 Don't cache data from non-recursive nameservers, since it
810 may erroneously look like a valid CNAME to a non-exitant
811 name. Thanks to Ben Winslow for finding this.
813 Call SO_BINDTODEVICE on the DHCP socket(s) when doing DHCP
814 on exactly one interface and --bind-interfaces is set. This
815 makes the OpenStack use-case of one dnsmasq per virtual
816 interface work. This is only available on Linux; it's not
817 supported on other platforms. Thanks to Vishvananda Ishaya
818 and the OpenStack team for the suggestion.
820 Updated French translation. Thanks to Gildas Le Nadan.
822 Give correct from-cache answers to explict CNAME queries.
823 Thanks to Rob Zwissler for spotting this.
825 Add --tftp-lowercase option. Thanks to Oliver Rath for the
828 Ensure that the DBus DhcpLeaseUpdated events are generated
829 when a lease goes through INIT_REBOOT state, even if the
830 dhcp-script is not in use. Thanks to Antoaneta-Ecaterina
833 Fix failure of TFTP over IPv4 on OpenBSD platform. Thanks
834 to Brad Smith for spotting this.
838 Fix compilation problem in Mac OS X Lion. Thanks to Olaf
839 Flebbe for the patch.
841 Fix DHCP when using --listen-address with an IP address
842 which is not the primary address of an interface.
844 Add --dhcp-client-update option.
846 Add Lua integration. Dnsmasq can now execute a DHCP
847 lease-change script written in Lua. This needs to be
848 enabled at compile time by setting HAVE_LUASCRIPT in
849 src/config.h or running "make COPTS=-DHAVE_LUASCRIPT"
850 Thanks to Jan-Piet Mens for the idea and proof-of-concept
853 Tidied src/config.h to distinguish between
854 platform-dependent compile-time options which are selected
855 automatically, and builder-selectable compile time
856 options. Document the latter better, and describe how to
857 set them from the make command line.
859 Tidied up IPPROTO_IP/SOL_IP (and IPv6 equivalent)
860 confusion. IPPROTO_IP works everywhere now.
862 Set TOS on DHCP sockets, this improves things on busy
863 wireless networks. Thanks to Dave Taht for the patch.
865 Determine VERSION automatically based on git magic:
866 release tags or hash values.
868 Improve start-up speed when reading large hosts files
869 containing many distinct addresses.
871 Fix problem if dnsmasq is started without the stdin,
872 stdout and stderr file descriptors open. This can manifest
873 itself as 100% CPU use. Thanks to Chris Moore for finding
876 Fix shell-scripting bug in bld/pkg-wrapper. Thanks to
877 Mark Mitchell for the patch.
879 Allow the TFP server or boot server in --pxe-service, to
880 be a domain name instead of an IP address. This allows for
881 round-robin to multiple servers, in the same way as
882 --dhcp-boot. A good suggestion from Cristiano Cumer.
884 Support BUILDDIR variable in the Makefile. Allows builds
885 for multiple archs from the same source tree with eg.
886 make BUILDDIR=linux (relative to dnsmasq tree)
887 make BUILDDIR=/tmp/openbsd (absolute path)
888 If BUILDDIR is not set, compilation happens in the src
889 directory, as before. Suggestion from Mark Mitchell.
891 Support DHCPv6. Support is there for the sort of things
892 the existing v4 server does, including tags, options,
893 static addresses and relay support. Missing is prefix
894 delegation, which is probably not required in the dnsmasq
895 niche, and an easy way to accept prefix delegations from
896 an upstream DHCPv6 server, which is. Future plans include
897 support for DHCPv6 router option and MAC address option
898 (to make selecting clients by MAC address work like IPv4).
899 These will be added as the standards mature.
900 This code has been tested, but this is the first release,
901 so don't bet the farm on it just yet. Many thanks to all
902 testers who have got it this far.
904 Support IPv6 router advertisements. This is a
905 simple-minded implementation, aimed at providing the
906 vestigial RA needed to go alongside IPv6. Is picks up
907 configuration from the DHCPv6 conf, and should just need
908 enabling with --enable-ra.
910 Fix long-standing wrinkle with --localise-queries that
911 could result in wrong answers when DNS packets arrive
912 via an interface other than the expected one. Thanks to
913 Lorenzo Milesi and John Hanks for spotting this one.
915 Update French translation. Thanks to Gildas Le Nadan.
917 Update Polish translation. Thanks to Jan Psota.
921 Fix regression in 2.58 which caused failure to start up
922 with some combinations of dnsmasq config and IPv6 kernel
923 network config. Thanks to Brielle Bruns for the bug
926 Improve dnsmasq's behaviour when network interfaces are
927 still doing duplicate address detection (DAD). Previously,
928 dnsmasq would wait up to 20 seconds at start-up for the
929 DAD state to terminate. This is broken for bridge
930 interfaces on recent Linux kernels, which don't start DAD
931 until the bridge comes up, and so can take arbitrary
932 time. The new behaviour lets dnsmasq poll for an arbitrary
933 time whilst providing service on other interfaces. Thanks
934 to Stephen Hemminger for pointing out the problem.
938 Provide a definition of the SA_SIZE macro where it's
939 missing. Fixes build failure on openBSD.
941 Don't include a zero terminator at the end of messages
942 sent to /dev/log when /dev/log is a datagram socket.
943 Thanks to Didier Rabound for spotting the problem.
945 Add --dhcp-sequential-ip flag, to force allocation of IP
946 addresses in ascending order. Note that the default
947 pseudo-random mode is in general better but some
948 server-deployment applications need this.
950 Fix problem where a server-id of 0.0.0.0 is sent to a
951 client when a dhcp-relay is in use if a client renews a
952 lease after dnsmasq restart and before any clients on the
953 subnet get a new lease. Thanks to Mike Ruiz for assistance
954 in chasing this one down.
956 Don't return NXDOMAIN to an AAAA query if we have CNAME
957 which points to an A record only: NODATA is the correct
958 reply in this case. Thanks to Tom Fernandes for spotting
961 Relax the need to supply a netmask in --dhcp-range for
962 networks which use a DHCP relay. Whilst this is still
963 desireable, in the absence of a netmask dnsmasq will use
964 a default based on the class (A, B, or C) of the address.
965 This should at least remove a cause of mysterious failure
966 for people using RFC1918 addresses and relays.
968 Add support for Linux conntrack connection marking. If
969 enabled with --conntrack, the connection mark for incoming
970 DNS queries will be copied to the outgoing connections
971 used to answer those queries. This allows clever firewall
972 and accounting stuff. Only available if dnsmasq is
973 compiled with HAVE_CONNTRACK and adds a dependency on
974 libnetfilter-conntrack. Thanks to Ed Wildgoose for the
975 initial idea, testing and sponsorship of this function.
977 Provide a sane error message when someone attempts to
978 match a tag in --dhcp-host.
980 Tweak the behaviour of --domain-needed, to avoid problems
981 with recursive nameservers downstream of dnsmasq. The new
982 behaviour only stops A and AAAA queries, and returns
983 NODATA rather than NXDOMAIN replies.
985 Efficiency fix for very large DHCP configurations, thanks
986 to James Gartrell and Mike Ruiz for help with this.
988 Allow the TFTP-server address in --dhcp-boot to be a
989 domain-name which is looked up in /etc/hosts. This can
990 give multiple IP addresses which are used round-robin,
991 thus doing TFTP server load-balancing. Thanks to Sushil
992 Agrawal for the patch.
994 When two tagged dhcp-options for a particular option
995 number are both valid, use the one which is valid without
996 a tag from the dhcp-range. Allows overriding of the value
997 of a DHCP option for a particular host as well as
998 per-network values. So
999 --dhcp-range=set:interface1,......
1000 --dhcp-host=set:myhost,.....
1001 --dhcp-option=tag:interface1,option:nis-domain,"domain1"
1002 --dhcp-option=tag:myhost,option:nis-domain,"domain2"
1003 will set the NIS-domain to domain1 for hosts in the range, but
1004 override that to domain2 for a particular host.
1006 Fix bug which resulted in truncated files and timeouts for
1007 some TFTP transfers. The bug only occurs with netascii
1008 transfers and needs an unfortunate relationship between
1009 file size, blocksize and the number of newlines in the
1010 last block before it manifests itself. Many thanks to
1011 Alkis Georgopoulos for spotting the problem and providing
1012 a comprehensive test-case.
1014 Fix regression in TFTP server on *BSD platforms introduced
1015 in version 2.56, due to confusion with sockaddr
1016 length. Many thanks to Loic Pefferkorn for finding this.
1018 Support scope-ids in IPv6 addresses of nameservers from
1019 /etc/resolv.conf and in --server options. Eg
1020 nameserver fe80::202:a412:4512:7bbf%eth0 or
1021 server=fe80::202:a412:4512:7bbf%eth0. Thanks to
1022 Michael Stapelberg for the suggestion.
1024 Update Polish translation, thanks to Jan Psota.
1026 Update French translation. Thanks to Gildas Le Nadan.
1030 Add patches to allow build under Android.
1032 Provide our own header for the DNS protocol, rather than
1033 relying on arpa/nameser.h. This has proved more or less
1034 defective over the years and the final straw is that it's
1035 effectively empty on Android.
1037 Fix regression in 2.56 which caused hex constants in
1038 configuration to be rejected if they contain the '*'
1041 Correct wrong casts of arguments to ctype.h functions,
1042 isdigit(), isxdigit() etc. Thanks to Matthias Andree for
1045 Allow build with IDN support independently from i18n.
1046 IDN support continues to be included automatically
1047 when i18n is included.
1048 'make COPTS=-DHAVE_IDN' is the magic incantation.
1050 Modify check on extraneous command line junk (added in
1051 2.56) so that it doesn't complain about extra _empty_
1052 arguments. Otherwise this breaks libvirt.
1056 Add a patch to allow dnsmasq to get interface names right in a
1057 Solaris zone. Thanks to Dj Padzensky for this.
1059 Improve data-type parsing heuristics so that
1060 --dhcp-option=option:domain-search,.
1061 treats the value as a string and not an IP address.
1062 Thanks to Clemens Fischer for spotting that.
1064 Add IPv6 support to the TFTP server. Many thanks to Jan
1065 'RedBully' Seiffert for the patches.
1067 Log DNS queries at level LOG_INFO, rather then
1068 LOG_DEBUG. This makes things consistent with DHCP
1069 logging. Thanks to Adam Pribyl for spotting the problem.
1071 Ensure that dnsmasq terminates cleanly when using
1072 --syslog-async even if it cannot make a connection to the
1075 Add --add-mac option. This is to support currently
1076 experimental DNS filtering facilities. Thanks to Benjamin
1077 Petrin for the orignal patch.
1079 Fix bug which meant that tags were ignored in dhcp-range
1080 configuration specifying PXE-proxy service. Thanks to
1081 Cristiano Cumer for spotting this.
1083 Raise an error if there is extra junk, not part of an
1084 option, on the command line.
1086 Flag a couple of log messages in cache.c as coming from
1087 the DHCP subsystem. Thanks to Olaf Westrik for the patch.
1089 Omit timestamps from logs when a) logging to stderr and
1090 b) --keep-in-forground is set. The logging facility on the
1091 other end of stderr can be assumned to supply them. Thanks
1092 to John Hallam for the patch.
1094 Don't complain about strings longer than 255 characters in
1095 --txt-record, just split the long strings into 255
1096 character chunks instead.
1098 Fix crash on double-free. This bug can only happen when
1099 dhcp-script is in use and then only in rare circumstances
1100 triggered by high DHCP transaction rate and a slow
1101 script. Thanks to Ferenc Wagner for finding the problem.
1103 Only log that a file has been sent by TFTP after the
1104 transfer has completed succesfully.
1106 A good suggestion from Ferenc Wagner: extend
1107 the --domain option to allow this sort of thing:
1108 --domain=thekelleys.org.uk,192.168.0.0/24,local
1109 which automatically creates
1110 --local=/thekelleys.org.uk/
1111 --local=/0.168.192.in-addr.arpa/
1113 Tighten up syntax checking of hex contants in the config
1114 file. Thanks to Fred Damen for spotting this.
1116 Add dnsmasq logo/icon, contributed by Justin Swift. Many
1119 Never cache DNS replies which have the 'cd' bit set, or
1120 which result from queries forwarded with the 'cd' bit
1121 set. The 'cd' bit instructs a DNSSEC validating server
1122 upstream to ignore signature failures and return replies
1123 anyway. Without this change it's possible to pollute the
1124 dnsmasq cache with bad data by making a query with the
1125 'cd' bit set and subsequent queries would return this data
1126 without its being marked as suspect. Thanks to Anders
1127 Kaseorg for pointing out this problem.
1129 Add --proxy-dnssec flag, for compliance with RFC
1130 4035. Dnsmasq will now clear the 'ad' bit in answers returned
1131 from upstream validating nameservers unless this option is
1134 Allow a filename of "-" for --conf-file to read
1135 stdin. Suggestion from Timothy Redaelli.
1137 Rotate the order of SRV records in replies, to provide
1138 round-robin load balancing when all the priorities are
1139 equal. Thanks to Peter McKinney for the suggestion.
1142 contrib/MacOSX-launchd/uk.org.thekelleys.dnsmasq.plist
1143 so that it doesn't log all queries to a file by
1144 default. Thanks again to Peter McKinney.
1146 By default, setting an IPv4 address for a domain but not
1147 an IPv6 address causes dnsmasq to return
1148 an NODATA reply for IPv6 (or vice-versa). So
1149 --address=/google.com/1.2.3.4 stops IPv6 queries for
1150 *google.com from being forwarded. Make it possible to
1151 override this behaviour by defining the sematics if the
1152 same domain appears in both --server and --address.
1153 In that case, the --address has priority for the address
1154 family in which is appears, but the --server has priority
1155 of the address family which doesn't appear in --adddress
1157 --address=/google.com/1.2.3.4
1158 --server=/google.com/#
1159 will return 1.2.3.4 for IPv4 queries for *.google.com but
1160 forward IPv6 queries to the normal upstream nameserver.
1161 Similarly when setting an IPv6 address
1162 only this will allow forwarding of IPv4 queries. Thanks to
1163 William for pointing out the need for this.
1165 Allow more than one --dhcp-optsfile and --dhcp-hostsfile
1166 and make them understand directories as arguments in the
1167 same way as --addn-hosts. Suggestion from John Hanks.
1169 Ignore rebinding requests for leases we don't know
1170 about. Rebind is broadcast, so we might get to overhear a
1171 request meant for another DHCP server. NAKing this is
1172 wrong. Thanks to Brad D'Hondt for assistance with this.
1174 Fix cosmetic bug which produced strange output when
1175 dumping cache statistics with some configurations. Thanks
1176 to Fedor Kozhevnikov for spotting this.
1180 Fix crash when /etc/ethers is in use. Thanks to
1181 Gianluigi Tiesi for finding this.
1183 Fix crash in netlink_multicast(). Thanks to Arno Wald for
1186 Allow the empty domain "." in dhcp domain-search (119)
1191 There is no version 2.54 to avoid confusion with 2.53,
1192 which incorrectly identifies itself as 2.54.
1196 Fix failure to compile on Debian/kFreeBSD. Thanks to
1197 Axel Beckert and Petr Salinger.
1199 Fix code to avoid scary strict-aliasing warnings
1200 generated by gcc 4.4.
1202 Added FAQ entry warning about DHCP failures with Vista
1203 when firewalls block 255.255.255.255.
1205 Fixed bug which caused bad things to happen if a
1206 resolv.conf file which exists is subsequently removed.
1207 Thanks to Nikolai Saoukh for the patch.
1209 Rationalised the DHCP tag system. Every configuration item
1210 which can set a tag does so by adding "set:<tag>" and
1211 every configuration item which is conditional on a tag is
1212 made so by "tag:<tag>". The NOT operator changes to '!',
1213 which is a bit more intuitive too. Dhcp-host directives
1214 can set more than one tag now. The old '#' NOT,
1215 "net:" prefix and no-prefixes are still honoured, so
1216 no existing config file needs to be changed, but
1217 the documentation and new-style config files should be
1218 much less confusing.
1220 Added --tag-if to allow boolean operations on tags.
1221 This allows complicated logic to be clearer and more
1222 general. A great suggestion from Richard Voigt.
1224 Add broadcast/unicast information to DHCP logging.
1226 Allow --dhcp-broadcast to be unconditional.
1228 Fixed incorrect behaviour with NOT <tag> conditionals in
1229 dhcp-options. Thanks to Max Turkewitz for assistance
1232 If we send vendor-class encapsulated options based on the
1233 vendor-class supplied by the client, and no explicit
1234 vendor-class option is given, echo back the vendor-class
1237 Fix bug which stopped dnsmasq from matching both a
1238 circuitid and a remoteid. Thanks to Ignacio Bravo for
1241 Add --dhcp-proxy, which makes it possible to configure
1242 dnsmasq to use a DHCP relay agent as a full proxy, with
1243 all DHCP messages passing through the proxy. This is
1244 useful if the relay adds extra information to the packets
1245 it forwards, but cannot be configured with the RFC 5107
1246 server-override option.
1248 Added interface:<iface name> part to dhcp-range. The
1249 semantics of this are very odd at first sight, but it
1250 allows a single line of the form
1251 dhcp-range=interface:virt0,192.168.0.4,192.168.0.200
1252 to be added to dnsmasq configuration which then supplies
1253 DHCP and DNS services to that interface, without affecting
1254 what services are supplied to other interfaces and
1255 irrespective of the existance or lack of
1256 interface=<interface>
1257 lines elsewhere in the dnsmasq configuration. The idea is
1258 that such a line can be added automatically by libvirt
1259 or equivalent systems, without disturbing any manual
1262 Similarly to the above, allow --enable-tftp=<interface>
1264 Allow a TFTP root to be set separately for requests via
1265 different interfaces, --tftp-root=<path>,<interface>
1267 Correctly handle and log clashes between CNAMES and
1268 DNS names being given to DHCP leases. This fixes a bug
1269 which caused nonsense IP addresses to be logged. Thanks to
1270 Sergei Zhirikov for finding and analysing the problem.
1272 Tweak flush_log so as to avoid leaving the log
1273 file in non-blocking mode. O_NONBLOCK is a property of the
1274 file, not the process/descriptor.
1276 Fix contrib/Solaris10/create_package
1277 (/usr/man -> /usr/share/man) Thanks to Vita Batrla.
1279 Fix a problem where, if a client got a lease, then went
1280 to another subnet and got another lease, then moved back,
1281 it couldn't resume the old lease, but would instead get
1282 a new address. Thanks to Leonardo Rodrigues for spotting
1283 this and testing the fix.
1285 Fix weird bug which sometimes omitted certain characters
1286 from the start of quoted strings in dhcp-options. Thanks
1287 to Dayton Turner for spotting the problem.
1289 Add facility to redirect some domains to the standard
1290 upstream servers: this allows something like
1291 --server=/google.com/1.2.3.4 --server=/www.google.com/#
1292 which will send queries for *.google.com to 1.2.3.4,
1293 except *www.google.com which will be forwarded as usual.
1294 Thanks to AJ Weber for prompting this addition.
1296 Improve the hash-algorithm used to generate IP addresses
1297 from MAC addresses during initial DHCP address
1298 allocation. This improves performance when large numbers
1299 of hosts with similar MAC addresses all try and get an IP
1300 address at the same time. Thanks to Paul Smith for his
1303 Tweak DHCP code so that --bridge-interface can be used to
1304 select which IP alias of an interface should be used for
1305 DHCP purposes on Linux. If eth0 has an alias eth0:dhcp
1306 then adding --bridge-interface=eth0:dhcp,eth0 will use
1307 the address of eth0:dhcp to determine the correct subnet
1308 for DHCP address allocation. Thanks to Pawel Golaszewski
1309 for prompting this and Eric Cooper for further testing.
1311 Add --dhcp-generate-names. Suggestion by Ferenc Wagner.
1313 Tweak DNS server selection algorithm when there is more
1314 than one server available for a domain, eg.
1315 --server=/mydomain/1.1.1.1
1316 --server=/mydomain/2.2.2.2
1317 Thanks to Alberto Cuesta-Canada for spotting a weakness
1320 Add --max-ttl. Thanks to Fredrik Ringertz for the patch.
1322 Allow --log-facility=- to force all logging to
1323 stderr. Suggestion from Clemens Fischer.
1325 Fix regression which caused configuration like
1326 --address=/.domain.com/1.2.3.4 to be rejected. The dot to the
1327 left of the domain has been implied and not required for a
1328 long time, but it should be accepted for backward
1329 compatibility. Thanks to Andrew Burcin for spotting this.
1331 Add --rebind-domain-ok and --rebind-localhost-ok.
1332 Suggestion from Clemens Fischer.
1334 Log replies to queries of type TXT, when --log-queries
1337 Fix compiler warnings when compiled with -DNO_DHCP. Thanks
1338 to Shantanu Gadgil for the patch.
1340 Updated French translation. Thanks to Gildas Le Nadan.
1342 Updated Polish translation. Thanks to Jan Psota.
1344 Updated German translation. Thanks to Matthias Andree.
1346 Added contrib/static-arp, thanks to Darren Hoo.
1348 Fix corruption of the domain when a name from /etc/hosts
1349 overrides one supplied by a DHCP client. Thanks to Fedor
1350 Kozhevnikov for spotting the problem.
1352 Updated Spanish translation. Thanks to Chris Chatham.
1356 Work around a Linux kernel bug which insists that the
1357 length of the option passed to setsockopt must be at least
1358 sizeof(int) bytes, even if we're calling SO_BINDTODEVICE
1359 and the device name is "lo". Note that this is fixed
1360 in kernel 2.6.31, but the workaround is harmless and
1361 allows earlier kernels to be used. Also fix dnsmasq
1362 bug which reported the wrong address when this failed.
1363 Thanks to Fedor for finding this.
1365 The API for IPv6 PKTINFO changed around Linux kernel
1366 2.6.14. Workaround the case where dnsmasq is compiled
1367 against newer headers, but then run on an old kernel:
1368 necessary for some *WRT distros.
1370 Re-read the set of network interfaces when re-loading
1371 /etc/resolv.conf if --bind-interfaces is not set. This
1372 handles the case that loopback interfaces do not exist
1373 when dnsmasq is first started.
1375 Tweak the PXE code to support port 4011. This should
1376 reduce broadcasts and make things more reliable when other
1377 servers are around. It also improves inter-operability
1378 with certain clients.
1380 Make a pxe-service configuration with no filename or boot
1381 service type legal: this does a local boot. eg.
1382 pxe-service=x86PC, "Local boot"
1384 Be more conservative in detecting "A for A"
1385 queries. Dnsmasq checks if the name in a type=A query looks
1386 like a dotted-quad IP address and answers the query itself
1387 if so, rather than forwarding it. Previously dnsmasq
1388 relied in the library function inet_addr() to convert
1389 addresses, and that will accept some things which are
1390 confusing in this context, like 1.2.3 or even just
1391 1234. Now we only do A for A processing for four decimal
1392 numbers delimited by dots.
1394 A couple of tweaks to fix compilation on Solaris. Thanks
1395 to Joel Macklow for help with this.
1397 Another Solaris compilation tweak, needed for Solaris
1398 2009.06. Thanks to Lee Essen for that.
1400 Added extract packaging stuff from Lee Essen to
1403 Increased the default limit on number of leases to 1000
1404 (from 150). This is mainly a defence against DoS attacks,
1405 and for the average "one for two class C networks"
1406 installation, IP address exhaustion does that just as
1407 well. Making the limit greater than the number of IP
1408 addresses available in such an installation removes a
1409 surprise which otherwise can catch people out.
1411 Removed extraneous trailing space in the value of the
1412 DNSMASQ_TIME_REMAINING DNSMASQ_LEASE_LENGTH and
1413 DNSMASQ_LEASE_EXPIRES environment variables. Thanks to
1414 Gildas Le Nadan for spotting this.
1416 Provide the network-id tags for a DHCP transaction to
1417 the lease-change script in the environment variable
1418 DNSMASQ_TAGS. A good suggestion from Gildas Le Nadan.
1420 Add support for RFC3925 "Vendor-Identifying Vendor
1421 Options". The syntax looks like this:
1422 --dhcp-option=vi-encap:<enterprise number>, .........
1424 Add support to --dhcp-match to allow matching against
1425 RFC3925 "Vendor-Identifying Vendor Classes". The syntax
1427 --dhcp-match=tag,vi-encap<enterprise number>, <value>
1429 Add some application specific code to assist in
1430 implementing the Broadband forum TR069 CPE-WAN
1431 specification. The details are in contrib/CPE-WAN/README
1433 Increase the default DNS packet size limit to 4096, as
1434 recommended by RFC5625 section 4.4.3. This can be
1435 reconfigured using --edns-packet-max if needed. Thanks to
1436 Francis Dupont for pointing this out.
1438 Rewrite query-ids even for TSIG signed packets, since
1439 this is allowed by RFC5625 section 4.5.
1441 Use getopt_long by default on OS X. It has been supported
1442 since version 10.3.0. Thanks to Arek Dreyer for spotting
1445 Added up-to-date startup configuration for MacOSX/launchd
1446 in contrib/MacOSX-launchd. Thanks to Arek Dreyer for
1449 Fix link error when including Dbus but excluding DHCP.
1450 Thanks to Oschtan for the bug report.
1452 Updated French translation. Thanks to Gildas Le Nadan.
1454 Updated Polish translation. Thanks to Jan Psota.
1456 Updated Spanish translation. Thanks to Chris Chatham.
1458 Fixed confusion about domains, when looking up DHCP hosts
1459 in /etc/hosts. This could cause spurious "Ignoring
1460 domain..." messages. Thanks to Fedor Kozhevnikov for
1461 finding and analysing the problem.
1465 Add support for internationalised DNS. Non-ASCII characters
1466 in domain names found in /etc/hosts, /etc/ethers and
1467 /etc/dnsmasq.conf will be correctly handled by translation to
1468 punycode, as specified in RFC3490. This function is only
1469 available if dnsmasq is compiled with internationalisation
1470 support, and adds a dependency on GNU libidn. Without i18n
1471 support, dnsmasq continues to be compilable with just
1472 standard tools. Thanks to Yves Dorfsman for the
1475 Add two more environment variables for lease-change scripts:
1476 First, DNSMASQ_SUPPLIED_HOSTNAME; this is set to the hostname
1477 supplied by a client, even if the actual hostname used is
1478 over-ridden by dhcp-host or dhcp-ignore-names directives.
1479 Also DNSMASQ_RELAY_ADDRESS which gives the address of
1480 a DHCP relay, if used.
1481 Suggestions from Michael Rack.
1483 Fix regression which broke echo of relay-agent
1484 options. Thanks to Michael Rack for spotting this.
1486 Don't treat option 67 as being interchangeable with
1487 dhcp-boot parameters if it's specified as
1490 Make the code to call scripts on lease-change compile-time
1491 optional. It can be switched off by editing src/config.h
1492 or building with "make COPTS=-DNO_SCRIPT".
1494 Make the TFTP server cope with filenames from Windows/DOS
1495 which use '\' as pathname separator. Thanks to Ralf for
1498 Updated Polish translation. Thanks to Jan Psota.
1500 Warn if an IP address is duplicated in /etc/ethers. Thanks
1501 to Felix Schwarz for pointing this out.
1503 Teach --conf-dir to take an option list of file suffices
1504 which will be ignored when scanning the directory. Useful
1505 for backup files etc. Thanks to Helmut Hullen for the
1508 Add new DHCP option named tftpserver-address, which
1509 corresponds to the third argument of dhcp-boot. This
1510 allows the complete functionality of dhcp-boot to be
1511 replicated with dhcp-option. Useful when using
1514 Test which upstream nameserver to use every 10 seconds
1515 or 50 queries and not just when a query times out and
1516 is retried. This should improve performance when there
1517 is a slow nameserver in the list. Thanks to Joe for the
1520 Don't do any PXE processing, even for clients with the
1521 correct vendorclass, unless at least one pxe-prompt or
1522 pxe-service option is given. This stops dnsmasq
1523 interfering with proxy PXE subsystems when it is just
1524 the DHCP server. Thanks to Spencer Clark for spotting this.
1526 Limit the blocksize used for TFTP transfers to a value
1527 which avoids packet fragmentation, based on the MTU of the
1528 local interface. Many netboot ROMs can't cope with
1531 Honour dhcp-ignore configuration for PXE and proxy-PXE
1532 requests. Thanks to Niels Basjes for the bug report.
1534 Updated French translation. Thanks to Gildas Le Nadan.
1538 Fix security problem which allowed any host permitted to
1539 do TFTP to possibly compromise dnsmasq by remote buffer
1540 overflow when TFTP enabled. Thanks to Core Security
1541 Technologies and Iván Arce, Pablo Hernán Jorge, Alejandro
1542 Pablo Rodriguez, Martín Coco, Alberto Soliño Testa and
1543 Pablo Annetta. This problem has Bugtraq id: 36121
1546 Fix a problem which allowed a malicious TFTP client to
1547 crash dnsmasq. Thanks to Steve Grubb at Red Hat for
1548 spotting this. This problem has Bugtraq id: 36120 and
1553 Fix regression in 2.48 which disables the lease-change
1554 script. Thanks to Jose Luis Duran for spotting this.
1556 Log TFTP "file not found" errors. These were not logged,
1557 since a normal PXELinux boot generates many of them, but
1558 the lack of the messages seems to be more confusing than
1559 routinely seeing them when there is no real error.
1561 Update Spanish translation. Thanks to Chris Chatham.
1565 Archived the extensive, backwards, changelog to
1566 CHANGELOG.archive. The current changelog now runs from
1567 version 2.43 and runs conventionally.
1569 Fixed bug which broke binding of servers to physical
1570 interfaces when interface names were longer than four
1571 characters. Thanks to MURASE Katsunori for the patch.
1573 Fixed netlink code to check that messages come from the
1574 correct source, and not another userspace process. Thanks
1575 to Steve Grubb for the patch.
1577 Maintainability drive: removed bug and missing feature
1578 workarounds for some old platforms. Solaris 9, OpenBSD
1579 older than 4.1, Glibc older than 2.2, Linux 2.2.x and
1580 DBus older than 1.1.x are no longer supported.
1582 Don't read included configuration files more than once:
1583 allows complex configuration structures without problems.
1585 Mark log messages from the various subsystems in dnsmasq:
1586 messages from the DHCP subsystem now have the ident string
1587 "dnsmasq-dhcp" and messages from TFTP have ident
1588 "dnsmasq-tftp". Thanks to Olaf Westrik for the patch.
1590 Fix possible infinite DHCP protocol loop when an IP
1591 address nailed to a hostname (not a MAC address) and a
1592 host sometimes provides the name, sometimes not.
1594 Allow --addn-hosts to take a directory: all the files
1595 in the directory are read. Thanks to Phil Cornelius for
1598 Support --bridge-interface on all platforms, not just BSD.
1600 Added support for advanced PXE functions. It's now
1601 possible to define a prompt and menu options which will
1602 be displayed when a client PXE boots. It's also possible to
1603 hand-off booting to other boot servers. Proxy-DHCP, where
1604 dnsmasq just supplies the PXE information and another DHCP
1605 server does address allocation, is also allowed. See the
1606 --pxe-prompt and --pxe-service keywords. Thanks to
1607 Alkis Georgopoulos for the suggestion and Guilherme Moro
1608 and Michael Brown for assistance.
1610 Improvements to DHCP logging. Thanks to Tom Metro for
1613 Add ability to build dnsmasq without DHCP support. To do
1614 this, edit src/config.h or build with
1615 "make COPTS=-DNO_DHCP". Thanks to Mahavir Jain for the patch.
1617 Added --test command-line switch - syntax check
1618 configuration files only.
1620 Updated French translation. Thanks to Gildas Le Nadan.
1624 Updated French translation. Thanks to Gildas Le Nadan.
1626 Fixed interface enumeration code to work on NetBSD
1627 5.0. Thanks to Roy Marples for the patch.
1629 Updated config.h to use the same location for the lease
1630 file on NetBSD as the other *BSD variants. Also allow
1631 LEASEFILE and CONFFILE symbols to be overriden in CFLAGS.
1633 Handle duplicate address detection on IPv6 more
1634 intelligently. In IPv6, an interface can have an address
1635 which is not usable, because it is still undergoing DAD
1636 (such addresses are marked "tentative"). Attempting to
1637 bind to an address in this state returns an error,
1638 EADDRNOTAVAIL. Previously, on getting such an error,
1639 dnsmasq would silently abandon the address, and never
1640 listen on it. Now, it retries once per second for 20
1641 seconds before generating a fatal error. 20 seconds should
1642 be long enough for any DAD process to complete, but can be
1643 adjusted in src/config.h if necessary. Thanks to Martin
1644 Krafft for the bug report.
1646 Add DBus introspection. Patch from Jeremy Laine.
1648 Update Dbus configuration file. Patch from Colin Walters.
1650 http://bugs.freedesktop.org/show_bug.cgi?id=18961
1652 Support arbitrarily encapsulated DHCP options, suggestion
1653 and initial patch from Samium Gromoff. This is useful for
1654 (eg) gPXE, which expect all its private options to be
1655 encapsulated inside a single option 175. So, eg,
1657 dhcp-option = encap:175, 190, "iscsi-client0"
1658 dhcp-option = encap:175, 191, "iscsi-client0-secret"
1660 will provide iSCSI parameters to gPXE.
1662 Enhance --dhcp-match to allow testing of the contents of a
1663 client-sent option, as well as its presence. This
1664 application in mind for this is RFC 4578
1665 client-architecture specifiers, but it's generally useful.
1666 Joey Korkames suggested the enhancement.
1668 Move from using the IP_XMIT_IF ioctl to IP_BOUND_IF on
1669 OpenSolaris. Thanks to Bastian Machek for the heads-up.
1671 No longer complain about blank lines in
1672 /etc/ethers. Thanks to Jon Nelson for the patch.
1674 Fix binding of servers to physical devices, eg
1675 --server=/domain/1.2.3.4@eth0 which was broken from 2.43
1676 onwards unless --query-port=0 set. Thanks to Peter Naulls
1679 Reply to DHCPINFORM requests even when the supplied ciaddr
1680 doesn't fall in any dhcp-range. In this case it's not
1681 possible to supply a complete configuration, but
1682 individually-configured options (eg PAC) may be useful.
1684 Allow the source address of an alias to be a range:
1685 --alias=192.168.0.0,10.0.0.0,255.255.255.0 maps the whole
1686 subnet 192.168.0.0->192.168.0.255 to 10.0.0.0->10.0.0.255,
1688 --alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
1689 maps only the 192.168.0.10->192.168.0.40 region. Thanks to
1690 Ib Uhrskov for the suggestion.
1692 Don't dynamically allocate DHCP addresses which may break
1693 Windows. Addresses which end in .255 or .0 are broken in
1694 Windows even when using supernetting.
1695 --dhcp-range=192.168.0.1,192.168.1.254,255,255,254.0 means
1696 192.168.0.255 is a valid IP address, but not for Windows.
1697 See Microsoft KB281579. We therefore no longer allocate
1698 these addresses to avoid hard-to-diagnose problems.
1700 Update Polish translation. Thanks to Jan Psota.
1702 Delete the PID-file when dnsmasq shuts down. Note that by
1703 this time, dnsmasq is normally not running as root, so
1704 this will fail if the PID-file is stored in a root-owned
1705 directory; such failure is silently ignored. To take
1706 advantage of this feature, the PID-file must be stored in a
1707 directory owned and write-able by the user running
1712 Allow --bootp-dynamic to take a netid tag, so that it may
1713 be selectively enabled. Thanks to Olaf Westrik for the
1716 Remove ISC-leasefile reading code. This has been
1717 deprecated for a long time, and last time I removed it, it
1718 ended up going back by request of one user. This time,
1719 it's gone for good; otherwise it would need to be
1720 re-worked to support multiple domains (see below).
1722 Support DHCP clients in multiple DNS domains. This is a
1723 long-standing request. Clients are assigned to a domain
1724 based in their IP address.
1726 Add --dhcp-fqdn flag, which changes behaviour if DNS names
1727 assigned to DHCP clients. When this is set, there must be
1728 a domain associated with each client, and only
1729 fully-qualified domain names are added to the DNS. The
1730 advantage is that the only the FQDN needs to be unique,
1731 so that two or more DHCP clients can share a hostname, as
1732 long as they are in different domains.
1734 Set environment variable DNSMASQ_DOMAIN when invoking
1735 lease-change script. This may be useful information to
1736 have now that it's variable.
1738 Tighten up data-checking code for DNS packet
1739 handling. Thanks to Steve Dodd who found certain illegal
1740 packets which could crash dnsmasq. No memory overwrite was
1741 possible, so this is not a security issue beyond the DoS
1744 Update example config dhcp option 47, the previous
1745 suggestion generated an illegal, zero-length,
1746 option. Thanks to Matthias Andree for finding this.
1748 Rewrite hosts-file reading code to remove the limit of
1749 1024 characters per line. John C Meuser found this.
1751 Create a net-id tag with the name of the interface on
1752 which the DHCP request was received.
1754 Fixed minor memory leak in DBus code, thanks to Jeremy
1755 Laine for the patch.
1757 Emit DBus signals as the DHCP lease database
1758 changes. Thanks to Jeremy Laine for the patch.
1760 Allow for more that one MAC address in a dhcp-host
1761 line. This configuration tells dnsmasq that it's OK to
1762 abandon a DHCP lease of the fixed address to one MAC
1763 address, if another MAC address in the dhcp-host statement
1764 asks for an address. This is useful to give a fixed
1765 address to a host which has two network interfaces
1766 (say, a laptop with wired and wireless interfaces.)
1767 It's very important to ensure that only one interface
1768 at a time is up, since dnsmasq abandons the first lease
1769 and re-uses the address before the leased time has
1770 elapsed. John Gray suggested this.
1772 Tweak the response to a DHCP request packet with a wrong
1773 server-id when --dhcp-authoritative is set; dnsmasq now
1774 returns a DHCPNAK, rather than silently ignoring the
1775 packet. Thanks to Chris Marget for spotting this
1778 Add --cname option. This provides a limited alias
1779 function, usable for DHCP names. Thanks to AJ Weber for
1780 suggestions on this.
1782 Updated contrib/webmin with latest version from Neil
1785 Updated Polish translation. Thanks to Jan Psota.
1787 Correct the text names for DHCP options 64 and 65 to be
1788 "nis+-domain" and "nis+-servers".
1790 Updated Spanish translation. Thanks to Chris Chatham.
1792 Force re-reading of /etc/resolv.conf when an "interface
1797 Fix total DNS failure in release 2.44 unless --min-port
1798 specified. Thanks to Steven Barth and Grant Coady for
1799 bugreport. Also reject out-of-range port spec, which could
1800 break things too: suggestion from Gilles Espinasse.
1804 Fix crash when unknown client attempts to renew a DHCP
1805 lease, problem introduced in version 2.43. Thanks to
1806 Carlos Carvalho for help chasing this down.
1808 Fix potential crash when a host which doesn't have a lease
1809 does DHCPINFORM. Again introduced in 2.43. This bug has
1810 never been reported in the wild.
1812 Fix crash in netlink code introduced in 2.43. Thanks to
1813 Jean Wolter for finding this.
1815 Change implementation of min_port to work even if min-port
1818 Patch to enable compilation of latest Mac OS X. Thanks to
1821 Update Spanish translation. Thanks to Christopher Chatham.
1825 Updated Polish translation. Thanks to Jan Psota.
1827 Flag errors when configuration options are repeated
1830 Further tweaks for GNU/kFreeBSD
1832 Add --no-wrap to msgmerge call - provides nicer .po file
1835 Honour lease-time spec in dhcp-host lines even for
1836 BOOTP. The user is assumed to known what they are doing in
1837 this case. (Hosts without the time spec still get infinite
1838 leases for BOOTP, over-riding the default in the
1839 dhcp-range.) Thanks to Peter Katzmann for uncovering this.
1841 Fix problem matching relay-agent ids. Thanks to Michael
1842 Rack for the bug report.
1844 Add --naptr-record option. Suggestion from Johan
1847 Implement RFC 5107 server-id-override DHCP relay agent
1850 Apply patches from Stefan Kruger for compilation on
1851 Solaris 10 under Sun studio.
1853 Yet more tweaking of Linux capability code, to suppress
1854 pointless wingeing from kernel 2.6.25 and above.
1856 Improve error checking during startup. Previously, some
1857 errors which occurred during startup would be worked
1858 around, with dnsmasq still starting up. Some were logged,
1859 some silent. Now, they all cause a fatal error and dnsmasq
1860 terminates with a non-zero exit code. The errors are those
1861 associated with changing uid and gid, setting process
1862 capabilities and writing the pidfile. Thanks to Uwe
1863 Gansert and the Suse security team for pointing out
1864 this improvement, and Bill Reimers for good implementation
1867 Provide NO_LARGEFILE compile option to switch off largefile
1868 support when compiling against versions of uclibc which
1869 don't support it. Thanks to Stephane Billiart for the patch.
1871 Implement random source ports for interactions with
1872 upstream nameservers. New spoofing attacks have been found
1873 against nameservers which do not do this, though it is not
1874 clear if dnsmasq is vulnerable, since to doesn't implement
1875 recursion. By default dnsmasq will now use a different
1876 source port (and socket) for each query it sends
1877 upstream. This behaviour can suppressed using the
1878 --query-port option, and the old default behaviour
1879 restored using --query-port=0. Explicit source-port
1880 specifications in --server configs are still honoured.
1882 Replace the random number generator, for better
1883 security. On most BSD systems, dnsmasq uses the
1884 arc4random() RNG, which is secure, but on other platforms,
1885 it relied on the C-library RNG, which may be
1886 guessable and therefore allow spoofing. This release
1887 replaces the libc RNG with the SURF RNG, from Daniel
1888 J. Berstein's DJBDNS package.
1890 Don't attempt to change user or group or set capabilities
1891 if dnsmasq is run as a non-root user. Without this, the
1892 change from soft to hard errors when these fail causes
1893 problems for non-root daemons listening on high
1894 ports. Thanks to Patrick McLean for spotting this.
1896 Updated French translation. Thanks to Gildas Le Nadan.
1900 The changelog for version 2.42 and earlier is
1901 available in CHANGELOG.archive.
projects / people / ms / dnsmasq.git / blob