2 Add ra-advrouter mode, for RFC-3775 mobile IPv6 support.
4 Add support for "ipsets" in *BSD, using pf. Thanks to
5 Sven Falempim for the patch.
7 Fix race condition which could lock up dnsmasq when an
8 interface goes down and up rapidly. Thanks to Conrad
9 Kostecki for helping to chase this down.
11 Add DBus methods SetFilterWin2KOption and SetBogusPrivOption
12 Thanks to the Smoothwall project for the patch.
14 Fix failure to build against Nettle-3.0. Thanks to Steven
15 Barth for spotting this and finding the fix.
17 When assigning existing DHCP leases to intefaces by comparing
18 networks, handle the case that two or more interfaces have the
19 same network part, but different prefix lengths (favour the
20 longer prefix length.) Thanks to Lung-Pin Chang for the
23 Add a mode which detects and removes DNS forwarding loops, ie
24 a query sent to an upstream server returns as a new query to
25 dnsmasq, and would therefore be forwarded again, resulting in
26 a query which loops many times before being dropped. Upstream
27 servers which loop back are disabled and this event is logged.
28 Thanks to Smoothwall for their sponsorship of this feature.
30 Include an RFC4191 route information option in router
31 advertisements for the prefix we're advertising. Thanks to
32 Ilya Ponetaev for the patch.
36 Subtle change to error handling to help DNSSEC validation
37 when servers fail to provide NODATA answers for
38 non-existent DS records.
40 Tweak code which removes DNSSEC records from answers when
41 not required. Fixes broken answers when additional section
42 has real records in it. Thanks to Marco Davids for the bug
45 Fix DNSSEC validation of ANY queries. Thanks to Marco Davids
46 for spotting that too.
48 Fix total DNS failure and 100% CPU use if cachesize set to zero,
49 regression introduced in 2.69. Thanks to James Hunt and
50 the Ubuntu crowd for assistance in fixing this.
54 Fix crash, introduced in 2.69, on TCP request when dnsmasq
55 compiled with DNSSEC support, but running without DNSSEC
56 enabled. Thanks to Manish Sing for spotting that one.
58 Fix regression which broke ipset functionality. Thanks to
59 Wang Jian for the bug report.
63 Implement dynamic interface discovery on *BSD. This allows
64 the contructor: syntax to be used in dhcp-range for DHCPv6
65 on the BSD platform. Thanks to Matthias Andree for
66 valuable research on how to implement this.
68 Fix infinite loop associated with some --bogus-nxdomain
69 configs. Thanks fogobogo for the bug report.
71 Fix missing RA RDNS option with configuration like
72 --dhcp-option=option6:23,[::] Thanks to Tsachi Kimeldorfer
73 for spotting the problem.
75 Add [fd00::] and [fe80::] as special addresses in DHCPv6
76 options, analogous to [::]. [fd00::] is replaced with the
77 actual ULA of the interface on the machine running
78 dnsmasq, [fe80::] with the link-local address.
79 Thanks to Tsachi Kimeldorfer for championing this.
81 DNSSEC validation and caching. Dnsmasq needs to be
82 compiled with this enabled, with
84 make dnsmasq COPTS=-DHAVE_DNSSEC
86 this add dependencies on the nettle crypto library and the
87 gmp maths library. It's possible to have these linked
90 make dnsmasq COPTS='-DHAVE_DNSSEC -DHAVE_DNSSEC_STATIC'
92 which bloats the dnsmasq binary, but saves the size of
93 the shared libraries which are much bigger.
95 To enable, DNSSEC, you will need a set of
96 trust-anchors. Now that the TLDs are signed, this can be
97 the keys for the root zone, and for convenience they are
98 included in trust-anchors.conf in the dnsmasq
99 distribution. You should of course check that these are
100 legitimate and up-to-date. So, adding
102 conf-file=/path/to/trust-anchors.conf
105 to your config is all thats needed to get things
106 working. The upstream nameservers have to be DNSSEC-capable
107 too, of course. Many ISP nameservers aren't, but the
108 Google public nameservers (8.8.8.8 and 8.8.4.4) are.
109 When DNSSEC is configured, dnsmasq validates any queries
110 for domains which are signed. Query results which are
111 bogus are replaced with SERVFAIL replies, and results
112 which are correctly signed have the AD bit set. In
113 addition, and just as importantly, dnsmasq supplies
114 correct DNSSEC information to clients which are doing
115 their own validation, and caches DNSKEY, DS and RRSIG
116 records, which significantly improve the performance of
117 downstream validators. Setting --log-queries will show
120 If a domain is returned from an upstream nameserver without
121 DNSSEC signature, dnsmasq by default trusts this. This
122 means that for unsigned zone (still the majority) there
123 is effectively no cost for having DNSSEC enabled. Of course
124 this allows an attacker to replace a signed record with a
125 false unsigned record. This is addressed by the
126 --dnssec-check-unsigned flag, which instructs dnsmasq
127 to prove that an unsigned record is legitimate, by finding
128 a secure proof that the zone containing the record is not
129 signed. Doing this has costs (typically one or two extra
130 upstream queries). It also has a nasty failure mode if
131 dnsmasq's upstream nameservers are not DNSSEC capable.
132 Without --dnssec-check-unsigned using such an upstream
133 server will simply result in not queries being validated;
134 with --dnssec-check-unsigned enabled and a
135 DNSSEC-ignorant upstream server, _all_ queries will fail.
137 Note that DNSSEC requires that the local time is valid and
138 accurate, if not then DNSSEC validation will fail. NTP
139 should be running. This presents a problem for routers
140 without a battery-backed clock. To set the time needs NTP
141 to do DNS lookups, but lookups will fail until NTP has run.
142 To address this, there's a flag, --dnssec-no-timecheck
143 which disables the time checks (only) in DNSSEC. When dnsmasq
144 is started and the clock is not synced, this flag should
145 be used. As soon as the clock is synced, SIGHUP dnsmasq.
146 The SIGHUP clears the cache of partially-validated data and
147 resets the no-timecheck flag, so that all DNSSEC checks
148 henceforward will be complete.
150 The development of DNSSEC in dnsmasq was started by
151 Giovanni Bajo, to whom huge thanks are owed. It has been
152 supported by Comcast, whose techfund grant has allowed for
153 an invaluable period of full-time work to get it to
156 Add --rev-server. Thanks to Dave Taht for suggesting this.
158 Add --servers-file. Allows dynamic update of upstream servers
159 full access to configuration.
161 Add --local-service. Accept DNS queries only from hosts
162 whose address is on a local subnet, ie a subnet for which
163 an interface exists on the server. This option
164 only has effect if there are no --interface --except-interface,
165 --listen-address or --auth-server options. It is intended
166 to be set as a default on installation, to allow
167 unconfigured installations to be useful but also safe from
168 being used for DNS amplification attacks.
170 Fix crashes in cache_get_cname_target() when dangling CNAMEs
171 encountered. Thanks to Andy and the rt-n56u project for
172 find this and helping to chase it down.
174 Fix wrong RCODE in authoritative DNS replies to PTR queries. The
175 correct answer was included, but the RCODE was set to NXDOMAIN.
176 Thanks to Craig McQueen for spotting this.
178 Make statistics available as DNS queries in the .bind TLD as
179 well as logging them.
183 Use random addresses for DHCPv6 temporary address
184 allocations, instead of algorithmically determined stable
187 Fix bug which meant that the DHCPv6 DUID was not available
188 in DHCP script runs during the lifetime of the dnsmasq
189 process which created the DUID de-novo. Once the DUID was
190 created and stored in the lease file and dnsmasq
191 restarted, this bug disappeared.
193 Fix bug introduced in 2.67 which could result in erroneous
194 NXDOMAIN returns to CNAME queries.
196 Fix build failures on MacOS X and openBSD.
198 Allow subnet specifications in --auth-zone to be interface
199 names as well as address literals. This makes it possible
200 to configure authoritative DNS when local address ranges
201 are dynamic and works much better than the previous
202 work-around which exempted contructed DHCP ranges from the
203 IP address filtering. As a consequence, that work-around
204 is removed. Under certain circumstances, this change wil
205 break existing configuration: if you're relying on the
206 contructed-range exception, you need to change --auth-zone
207 to specify the same interface as is used to construct your
208 DHCP ranges, probably with a trailing "/6" like this:
209 --auth-zone=example.com,eth0/6 to limit the addresses to
210 IPv6 addresses of eth0.
212 Fix problems when advertising deleted IPv6 prefixes. If
213 the prefix is deleted (rather than replaced), it doesn't
214 get advertised with zero preferred time. Thanks to Tsachi
217 Fix segfault with some locally configured CNAMEs. Thanks
218 to Andrew Childs for spotting the problem.
220 Fix memory leak on re-reading /etc/hosts and friends,
223 Check the arrival interface of incoming DNS and TFTP
224 requests via IPv6, even in --bind-interfaces mode. This
225 isn't possible for IPv4 and can generate scary warnings,
226 but as it's always possible for IPv6 (the API always
227 exists) then we should do it always.
229 Tweak the rules on prefix-lengths in --dhcp-range for
230 IPv6. The new rule is that the specified prefix length
231 must be larger than or equal to the prefix length of the
232 corresponding address on the local interface.
236 Fix crash if upstream server returns SERVFAIL when
237 --conntrack in use. Thanks to Giacomo Tazzari for finding
238 this and supplying the patch.
240 Repair regression in 2.64. That release stopped sending
241 lease-time information in the reply to DHCPINFORM
242 requests, on the correct grounds that it was a standards
243 violation. However, this broke the dnsmasq-specific
244 dhcp_lease_time utility. Now, DHCPINFORM returns
245 lease-time only if it's specifically requested
246 (maintaining standards) and the dhcp_lease_time utility
247 has been taught to ask for it (restoring functionality).
249 Fix --dhcp-match, --dhcp-vendorclass and --dhcp-userclass
250 to work with BOOTP and well as DHCP. Thanks to Peter
251 Korsgaard for spotting the problem.
253 Add --synth-domain. Thanks to Vishvananda Ishaya for
256 Fix failure to compile ipset.c if old kernel headers are
257 in use. Thanks to Eugene Rudoy for pointing this out.
259 Handle IPv4 interface-address labels in Linux. These are
260 often used to emulate the old IP-alias addresses. Before,
261 using --interface=eth0 would service all the addresses of
262 eth0, including ones configured as aliases, which appear
263 in ifconfig as eth0:0. Now, only addresses with the label
264 eth0 are active. This is not backwards compatible: if you
265 want to continue to bind the aliases too, you need to add
266 eg. --interface=eth0:0 to the config.
268 Fix "failed to set SO_BINDTODEVICE on DHCP socket: Socket
269 operation on non-socket" error on startup with
270 configurations which have exactly one --interface option
271 and do RA but _not_ DHCPv6. Thanks to Trever Adams for the
274 Generalise --interface-name to cope with IPv6 addresses
275 and multiple addresses per interface per address family.
277 Fix option parsing for --dhcp-host, which was generating a
278 spurious error when all seven possible items were
279 included. Thanks to Zhiqiang Wang for the bug report.
281 Remove restriction on prefix-length in --auth-zone. Thanks
282 to Toke Hoiland-Jorgensen for suggesting this.
284 Log when the maximum number of concurrent DNS queries is
285 reached. Thanks to Marcelo Salhab Brogliato for the patch.
287 If wildcards are used in --interface, don't assume that
288 there will only ever be one available interface for DHCP
289 just because there is one at start-up. More may appear, so
290 we can't use SO_BINDTODEVICE. Thanks to Natrio for the bug
293 Increase timeout/number of retries in TFTP to accomodate
294 AudioCodes Voice Gateways doing streaming writes to flash.
295 Thanks to Damian Kaczkowski for spotting the problem.
297 Fix crash with empty DHCP string options when adding zero
298 terminator. Thanks to Patrick McLean for the bug report.
300 Allow hostnames to start with a number, as allowed in
301 RFC-1123. Thanks to Kyle Mestery for the patch.
303 Fixes to DHCP FQDN option handling: don't terminate FQDN
304 if domain not known and allow a FQDN option with blank
305 name to request that a FQDN option is returned in the
306 reply. Thanks to Roy Marples for the patch.
308 Make --clear-on-reload apply to setting upstream servers
311 When the address which triggered the construction of an
312 advertised IPv6 prefix disappears, continue to advertise
313 the prefix for up to 2 hours, with the preferred lifetime
314 set to zero. This satisfies RFC 6204 4.3 L-13 and makes
315 things work better if a prefix disappears without being
316 deprecated first. Thanks to Uwe Schindler for persuasively
319 Fix MAC address enumeration on *BSD. Thanks to Brad Smith
322 Support RFC-4242 information-refresh-time options in the
323 reply to DHCPv6 information-request. The lease time of the
324 smallest valid dhcp-range is sent. Thanks to Uwe Schindler
327 Make --listen-address higher priority than --except-interface
328 in all circumstances. Thanks to Thomas Hood for the bugreport.
330 Provide independent control over which interfaces get TFTP
331 service. If enable-tftp is given a list of interfaces, then TFTP
332 is provided on those. Without the list, the previous behaviour
333 (provide TFTP to the same interfaces we provide DHCP to)
334 is retained. Thanks to Lonnie Abelbeck for the suggestion.
336 Add --dhcp-relay config option. Many thanks to vtsl.net
337 for sponsoring this development.
339 Fix crash with empty tag: in --dhcp-range. Thanks to
340 Kaspar Schleiser for the bug report.
342 Add "baseline" and "bloatcheck" makefile targets, for
343 revealing size changes during development. Thanks to
344 Vladislav Grishenko for the patch.
346 Cope with DHCPv6 clients which send REQUESTs without
347 address options - treat them as SOLICIT with rapid commit.
349 Support identification of clients by MAC address in
350 DHCPv6. When using a relay, the relay must support RFC
351 6939 for this to work. It always works for directly
352 connected clients. Thanks to Vladislav Grishenko
353 for prompting this feature.
355 Remove the rule for constructed DHCP ranges that the local
356 address must be either the first or last address in the
357 range. This was originally to avoid SLAAC addresses, but
358 we now explicitly autoconfig and privacy addresses instead.
360 Update Polish translation. Thanks to Jan Psota.
362 Fix problem in DHCPv6 vendorclass/userclass matching
363 code. Thanks to Tanguy Bouzeloc for the patch.
365 Update Spanish transalation. Thanks to Vicente Soriano.
367 Add --ra-param option. Thanks to Vladislav Grishenko for
370 Add --add-subnet configuration, to tell upstream DNS
371 servers where the original client is. Thanks to DNSthingy
372 for sponsoring this feature.
374 Add --quiet-dhcp, --quiet-dhcp6 and --quiet-ra. Thanks to
375 Kevin Darbyshire-Bryant for the initial patch.
377 Allow A/AAAA records created by --interface-name to be the
378 target of --cname. Thanks to Hadmut Danisch for the
381 Avoid treating a --dhcp-host which has an IPv6 address
382 as eligable for use with DHCPv4 on the grounds that it has
383 no address, and vice-versa. Thanks to Yury Konovalov for
384 spotting the problem.
386 Do a better job caching dangling CNAMEs. Thanks to Yves
387 Dorfsman for spotting the problem.
391 Add the ability to act as an authoritative DNS
392 server. Dnsmasq can now answer queries from the wider 'net
393 with local data, as long as the correct NS records are set
394 up. Only local data is provided, to avoid creating an open
395 DNS relay. Zone transfer is supported, to allow secondary
396 servers to be configured.
398 Add "constructed DHCP ranges" for DHCPv6. This is intended
399 for IPv6 routers which get prefixes dynamically via prefix
400 delegation. With suitable configuration, stateful DHCPv6
401 and RA can happen automatically as prefixes are delegated
402 and then deprecated, without having to re-write the
403 dnsmasq configuration file or restart the daemon. Thanks to
404 Steven Barth for extensive testing and development work on
407 Fix crash on startup on Solaris 11. Regression probably
408 introduced in 2.61. Thanks to Geoff Johnstone for the
411 Add code to make behaviour for TCP DNS requests that same
412 as for UDP requests, when a request arrives for an allowed
413 address, but via a banned interface. This change is only
414 active on Linux, since the relevant API is missing (AFAIK)
415 on other platforms. Many thanks to Tomas Hozza for
416 spotting the problem, and doing invaluable discovery of
417 the obscure and undocumented API required for the solution.
419 Don't send the default DHCP option advertising dnsmasq as
420 the local DNS server if dnsmasq is configured to not act
421 as DNS server, or it's configured to a non-standard port.
423 Add DNSMASQ_CIRCUIT_ID, DNSMASQ_SUBCRIBER_ID,
424 DNSMASQ_REMOTE_ID variables to the environment of the
425 lease-change script (and the corresponding Lua). These hold
426 information inserted into the DHCP request by a DHCP relay
427 agent. Thanks to Lakefield Communications for providing a
428 bounty for this addition.
430 Fixed crash, introduced in 2.64, whilst handling DHCPv6
431 information-requests with some common configurations.
432 Thanks to Robert M. Albrecht for the bug report and
435 Add --ipset option. Thanks to Jason A. Donenfeld for the
438 Don't erroneously reject some option names in --dhcp-match
439 options. Thanks to Benedikt Hochstrasser for the bug report.
441 Allow a trailing '*' wildcard in all interface-name
442 configurations. Thanks to Christian Parpart for the patch.
444 Handle the situation where libc headers define
445 SO_REUSEPORT, but the kernel in use doesn't, to cope with
446 the introduction of this option to Linux. Thanks to Rich
447 Felker for the bug report.
449 Update Polish translation. Thanks to Jan Psota.
451 Fix crash if the configured DHCP lease limit is
452 reached. Regression occurred in 2.61. Thanks to Tsachi for
455 Update the French translation. Thanks to Gildas le Nadan.
459 Fix regression which broke forwarding of queries sent via
460 TCP which are not for A and AAAA and which were directed to
461 non-default servers. Thanks to Niax for the bug report.
463 Fix failure to build with DHCP support excluded. Thanks to
464 Gustavo Zacarias for the patch.
466 Fix nasty regression in 2.64 which completely broke cacheing.
470 Handle DHCP FQDN options with all flag bits zero and
471 --dhcp-client-update set. Thanks to Bernd Krumbroeck for
472 spotting the problem.
474 Finesse the check for /etc/hosts names which conflict with
475 DHCP names. Previously a name/address pair in /etc/hosts
476 which didn't match the name/address of a DHCP lease would
477 generate a warning. Now that only happesn if there is not
478 also a match. This allows multiple addresses for a name in
479 /etc/hosts with one of them assigned via DHCP.
481 Fix broken vendor-option processing for BOOTP. Thanks to
482 Hans-Joachim Baader for the bug report.
484 Don't report spurious netlink errors, regression in
485 2.63. Thanks to Vladislav Grishenko for the patch.
487 Flag DHCP or DHCPv6 in starup logging. Thanks to
488 Vladislav Grishenko for the patch.
490 Add SetServersEx method in DBus interface. Thanks to Dan
491 Williams for the patch.
493 Add SetDomainServers method in DBus interface. Thanks to
494 Roy Marples for the patch.
496 Fix build with later Lua libraries. Thansk to Cristian
497 Rodriguez for the patch.
499 Add --max-cache-ttl option. Thanks to Dennis Kaarsemaker
502 Fix breakage of --host-record parsing, resulting in
503 infinte loop at startup. Regression in 2.63. Thanks to
504 Haim Gelfenbeyn for spotting this.
506 Set SO_REUSEADDRESS and SO_V6ONLY options on the DHCPv6
507 socket, this allows multiple instances of dnsmasq on a
508 single machine, in the same way as for DHCPv4. Thanks to
509 Gene Czarcinski and Vladislav Grishenko for work on this.
511 Fix DHCPv6 to do access control correctly when it's
512 configured with --listen-address. Thanks to
513 Gene Czarcinski for sorting this out.
515 Add a "wildcard" dhcp-range which works for any IPv6
516 subnet, --dhcp-range=::,static Useful for Stateless
517 DHCPv6. Thanks to Vladislav Grishenko for the patch.
519 Don't include lease-time in DHCPACK replies to DHCPINFORM
520 queries, since RFC-2131 says we shouldn't. Thanks to
521 Wouter Ibens for pointing this out.
523 Makefile tweak to do dependency checking on header files.
524 Thanks to Johan Peeters for the patch.
526 Check interface for outgoing unsolicited router
527 advertisements, rather than relying on interface address
528 configuration. Thanks to Gene Czarinski for the patch.
530 Handle better attempts to transmit on interfaces which are
531 still doing DAD, and specifically do not just transmit
532 without setting source address and interface, since this
533 can cause very puzzling effects when a router
534 advertisement goes astray. Thanks again to Gene Czarinski.
536 Get RA timers right when there is more than one
537 dhcp-range on a subnet.
541 Do duplicate dhcp-host address check in --test mode.
543 Check that tftp-root directories are accessible before
544 start-up. Thanks to Daniel Veillard for the initial patch.
546 Allow more than one --tfp-root flag. The per-interface
547 stuff is pointless without that.
549 Add --bind-dynamic. A hybrid mode between the default and
550 --bind-interfaces which copes with dynamically created
553 A couple of fixes to the build system for Android. Thanks
554 to Metin Kaya for the patches.
556 Remove the interface:<interface> argument in --dhcp-range, and
557 the interface argument to --enable-tftp. These were a
558 still-born attempt to allow automatic isolated
559 configuration by libvirt, but have never (to my knowledge)
560 been used, had very strange semantics, and have been
561 superceded by other mechanisms.
563 Fixed bug logging filenames when duplicate dhcp-host
564 addresses are found. Thanks to John Hanks for the patch.
566 Fix regression in 2.61 which broke caching of CNAME
567 chains. Thanks to Atul Gupta for the bug report.
569 Allow the target of a --cname flag to be another --cname.
571 Teach DHCPv6 about the RFC 4242 information-refresh-time
572 option, and add parsing if the minutes, hours and days
573 format for options. Thanks to Francois-Xavier Le Bail for
576 Allow "w" (for week) as multiplier in lease times, as well
577 as seconds, minutes, hours and days. Álvaro Gámez Machado
578 spotted the ommission.
580 Update French translation. Thanks to Gildas Le Nadan.
582 Allow a DBus service name to be given with --enable-dbus
583 which overrides the default,
584 uk.org.thekelleys.dnsmasq. Thanks to Mathieu
585 Trudel-Lapierre for the patch.
587 Set the "prefix on-link" bit in Router
588 Advertisements. Thanks to Gui Iribarren for the patch.
592 Update German translation. Thanks to Conrad Kostecki.
594 Cope with router-solict packets wich don't have a valid
595 source address. Thanks to Vladislav Grishenko for the patch.
597 Fixed bug which caused missing periodic router
598 advertisements with some configurations. Thanks to
599 Vladislav Grishenko for the patch.
601 Fixed bug which broke DHCPv6/RA with prefix lengths
602 which are not divisible by 8. Thanks to Andre Coetzee
605 Fix non-response to router-solicitations when
606 router-advertisement configured, but DHCPv6 not
607 configured. Thanks to Marien Zwart for the patch.
609 Add --dns-rr, to allow arbitrary DNS resource records.
611 Fixed bug which broke RA scheduling when an interface had
612 two addresses in the same network. Thanks to Jim Bos for
613 his help nailing this.
616 Re-write interface discovery code on *BSD to use
617 getifaddrs. This is more portable, more straightforward,
618 and allows us to find the prefix length for IPv6
621 Add ra-names, ra-stateless and slaac keywords for DHCPv6.
622 Dnsmasq can now synthesise AAAA records for dual-stack
623 hosts which get IPv6 addresses via SLAAC. It is also now
624 possible to use SLAAC and stateless DHCPv6, and to
625 tell clients to use SLAAC addresses as well as DHCP ones.
626 Thanks to Dave Taht for help with this.
628 Add --dhcp-duid to allow DUID-EN uids to be used.
630 Explicity send DHCPv6 replies to the correct port, instead
631 of relying on clients to send requests with the correct
632 source address, since at least one client in the wild gets
633 this wrong. Thanks to Conrad Kostecki for help tracking
636 Send a preference value of 255 in DHCPv6 replies when
637 --dhcp-authoritative is in effect. This tells clients not
638 to wait around for other DHCP servers.
640 Better logging of DHCPv6 options.
642 Add --host-record. Thanks to Rob Zwissler for the
645 Invoke the DHCP script with action "tftp" when a TFTP file
646 transfer completes. The size of the file, address to which
647 it was sent and complete pathname are supplied. Note that
648 version 2.60 introduced some script incompatibilties
649 associated with DHCPv6, and this is a further change. To
650 be safe, scripts should ignore unknown actions, and if
651 not IPv6-aware, should exit if the environment
652 variable DNSMASQ_IAID is set. The use-case for this is
653 to track netboot/install. Suggestion from Shantanu
656 Update contrib/port-forward/dnsmasq-portforward to reflect
659 Set the environment variable DNSMASQ_LOG_DHCP when running
660 the script id --log-dhcp is in effect, so that script can
661 taylor their logging verbosity. Suggestion from Malte
664 Arrange that addresses specified with --listen-address
665 work even if there is no interface carrying the
666 address. This is chiefly useful for IPv4 loopback
667 addresses, where any address in 127.0.0.0/8 is a valid
668 loopback address, but normally only 127.0.0.1 appears on
669 the lo interface. Thanks to Mathieu Trudel-Lapierre for
670 the idea and initial patch.
672 Fix crash, introduced in 2.60, when a DHCPINFORM is
673 received from a network which has no valid dhcp-range.
674 Thanks to Stephane Glondu for the bug report.
676 Add a new DHCP lease time keyword, "deprecated" for
677 --dhcp-range. This is only valid for IPv6, and sets the
678 preffered lease time for both DHCP and RA to zero. The
679 effect is that clients can continue to use the address
680 for existing connections, but new connections will use
681 other addresses, if they exist. This makes hitless
682 renumbering at least possible.
684 Fix bug in address6_available() which caused DHCPv6 lease
685 aquisition to fail if more than one dhcp-range in use.
687 Provide RDNSS and DNSSL data in router advertisements,
688 using the settings provided for DHCP options
689 option6:domain-search and option6:dns-server.
691 Tweak logo/favicon.ico to add some transparency. Thanks to
692 SamLT for work on this.
694 Don't cache data from non-recursive nameservers, since it
695 may erroneously look like a valid CNAME to a non-exitant
696 name. Thanks to Ben Winslow for finding this.
698 Call SO_BINDTODEVICE on the DHCP socket(s) when doing DHCP
699 on exactly one interface and --bind-interfaces is set. This
700 makes the OpenStack use-case of one dnsmasq per virtual
701 interface work. This is only available on Linux; it's not
702 supported on other platforms. Thanks to Vishvananda Ishaya
703 and the OpenStack team for the suggestion.
705 Updated French translation. Thanks to Gildas Le Nadan.
707 Give correct from-cache answers to explict CNAME queries.
708 Thanks to Rob Zwissler for spotting this.
710 Add --tftp-lowercase option. Thanks to Oliver Rath for the
713 Ensure that the DBus DhcpLeaseUpdated events are generated
714 when a lease goes through INIT_REBOOT state, even if the
715 dhcp-script is not in use. Thanks to Antoaneta-Ecaterina
718 Fix failure of TFTP over IPv4 on OpenBSD platform. Thanks
719 to Brad Smith for spotting this.
723 Fix compilation problem in Mac OS X Lion. Thanks to Olaf
724 Flebbe for the patch.
726 Fix DHCP when using --listen-address with an IP address
727 which is not the primary address of an interface.
729 Add --dhcp-client-update option.
731 Add Lua integration. Dnsmasq can now execute a DHCP
732 lease-change script written in Lua. This needs to be
733 enabled at compile time by setting HAVE_LUASCRIPT in
734 src/config.h or running "make COPTS=-DHAVE_LUASCRIPT"
735 Thanks to Jan-Piet Mens for the idea and proof-of-concept
738 Tidied src/config.h to distinguish between
739 platform-dependent compile-time options which are selected
740 automatically, and builder-selectable compile time
741 options. Document the latter better, and describe how to
742 set them from the make command line.
744 Tidied up IPPROTO_IP/SOL_IP (and IPv6 equivalent)
745 confusion. IPPROTO_IP works everywhere now.
747 Set TOS on DHCP sockets, this improves things on busy
748 wireless networks. Thanks to Dave Taht for the patch.
750 Determine VERSION automatically based on git magic:
751 release tags or hash values.
753 Improve start-up speed when reading large hosts files
754 containing many distinct addresses.
756 Fix problem if dnsmasq is started without the stdin,
757 stdout and stderr file descriptors open. This can manifest
758 itself as 100% CPU use. Thanks to Chris Moore for finding
761 Fix shell-scripting bug in bld/pkg-wrapper. Thanks to
762 Mark Mitchell for the patch.
764 Allow the TFP server or boot server in --pxe-service, to
765 be a domain name instead of an IP address. This allows for
766 round-robin to multiple servers, in the same way as
767 --dhcp-boot. A good suggestion from Cristiano Cumer.
769 Support BUILDDIR variable in the Makefile. Allows builds
770 for multiple archs from the same source tree with eg.
771 make BUILDDIR=linux (relative to dnsmasq tree)
772 make BUILDDIR=/tmp/openbsd (absolute path)
773 If BUILDDIR is not set, compilation happens in the src
774 directory, as before. Suggestion from Mark Mitchell.
776 Support DHCPv6. Support is there for the sort of things
777 the existing v4 server does, including tags, options,
778 static addresses and relay support. Missing is prefix
779 delegation, which is probably not required in the dnsmasq
780 niche, and an easy way to accept prefix delegations from
781 an upstream DHCPv6 server, which is. Future plans include
782 support for DHCPv6 router option and MAC address option
783 (to make selecting clients by MAC address work like IPv4).
784 These will be added as the standards mature.
785 This code has been tested, but this is the first release,
786 so don't bet the farm on it just yet. Many thanks to all
787 testers who have got it this far.
789 Support IPv6 router advertisements. This is a
790 simple-minded implementation, aimed at providing the
791 vestigial RA needed to go alongside IPv6. Is picks up
792 configuration from the DHCPv6 conf, and should just need
793 enabling with --enable-ra.
795 Fix long-standing wrinkle with --localise-queries that
796 could result in wrong answers when DNS packets arrive
797 via an interface other than the expected one. Thanks to
798 Lorenzo Milesi and John Hanks for spotting this one.
800 Update French translation. Thanks to Gildas Le Nadan.
802 Update Polish translation. Thanks to Jan Psota.
806 Fix regression in 2.58 which caused failure to start up
807 with some combinations of dnsmasq config and IPv6 kernel
808 network config. Thanks to Brielle Bruns for the bug
811 Improve dnsmasq's behaviour when network interfaces are
812 still doing duplicate address detection (DAD). Previously,
813 dnsmasq would wait up to 20 seconds at start-up for the
814 DAD state to terminate. This is broken for bridge
815 interfaces on recent Linux kernels, which don't start DAD
816 until the bridge comes up, and so can take arbitrary
817 time. The new behaviour lets dnsmasq poll for an arbitrary
818 time whilst providing service on other interfaces. Thanks
819 to Stephen Hemminger for pointing out the problem.
823 Provide a definition of the SA_SIZE macro where it's
824 missing. Fixes build failure on openBSD.
826 Don't include a zero terminator at the end of messages
827 sent to /dev/log when /dev/log is a datagram socket.
828 Thanks to Didier Rabound for spotting the problem.
830 Add --dhcp-sequential-ip flag, to force allocation of IP
831 addresses in ascending order. Note that the default
832 pseudo-random mode is in general better but some
833 server-deployment applications need this.
835 Fix problem where a server-id of 0.0.0.0 is sent to a
836 client when a dhcp-relay is in use if a client renews a
837 lease after dnsmasq restart and before any clients on the
838 subnet get a new lease. Thanks to Mike Ruiz for assistance
839 in chasing this one down.
841 Don't return NXDOMAIN to an AAAA query if we have CNAME
842 which points to an A record only: NODATA is the correct
843 reply in this case. Thanks to Tom Fernandes for spotting
846 Relax the need to supply a netmask in --dhcp-range for
847 networks which use a DHCP relay. Whilst this is still
848 desireable, in the absence of a netmask dnsmasq will use
849 a default based on the class (A, B, or C) of the address.
850 This should at least remove a cause of mysterious failure
851 for people using RFC1918 addresses and relays.
853 Add support for Linux conntrack connection marking. If
854 enabled with --conntrack, the connection mark for incoming
855 DNS queries will be copied to the outgoing connections
856 used to answer those queries. This allows clever firewall
857 and accounting stuff. Only available if dnsmasq is
858 compiled with HAVE_CONNTRACK and adds a dependency on
859 libnetfilter-conntrack. Thanks to Ed Wildgoose for the
860 initial idea, testing and sponsorship of this function.
862 Provide a sane error message when someone attempts to
863 match a tag in --dhcp-host.
865 Tweak the behaviour of --domain-needed, to avoid problems
866 with recursive nameservers downstream of dnsmasq. The new
867 behaviour only stops A and AAAA queries, and returns
868 NODATA rather than NXDOMAIN replies.
870 Efficiency fix for very large DHCP configurations, thanks
871 to James Gartrell and Mike Ruiz for help with this.
873 Allow the TFTP-server address in --dhcp-boot to be a
874 domain-name which is looked up in /etc/hosts. This can
875 give multiple IP addresses which are used round-robin,
876 thus doing TFTP server load-balancing. Thanks to Sushil
877 Agrawal for the patch.
879 When two tagged dhcp-options for a particular option
880 number are both valid, use the one which is valid without
881 a tag from the dhcp-range. Allows overriding of the value
882 of a DHCP option for a particular host as well as
883 per-network values. So
884 --dhcp-range=set:interface1,......
885 --dhcp-host=set:myhost,.....
886 --dhcp-option=tag:interface1,option:nis-domain,"domain1"
887 --dhcp-option=tag:myhost,option:nis-domain,"domain2"
888 will set the NIS-domain to domain1 for hosts in the range, but
889 override that to domain2 for a particular host.
891 Fix bug which resulted in truncated files and timeouts for
892 some TFTP transfers. The bug only occurs with netascii
893 transfers and needs an unfortunate relationship between
894 file size, blocksize and the number of newlines in the
895 last block before it manifests itself. Many thanks to
896 Alkis Georgopoulos for spotting the problem and providing
897 a comprehensive test-case.
899 Fix regression in TFTP server on *BSD platforms introduced
900 in version 2.56, due to confusion with sockaddr
901 length. Many thanks to Loic Pefferkorn for finding this.
903 Support scope-ids in IPv6 addresses of nameservers from
904 /etc/resolv.conf and in --server options. Eg
905 nameserver fe80::202:a412:4512:7bbf%eth0 or
906 server=fe80::202:a412:4512:7bbf%eth0. Thanks to
907 Michael Stapelberg for the suggestion.
909 Update Polish translation, thanks to Jan Psota.
911 Update French translation. Thanks to Gildas Le Nadan.
915 Add patches to allow build under Android.
917 Provide our own header for the DNS protocol, rather than
918 relying on arpa/nameser.h. This has proved more or less
919 defective over the years and the final straw is that it's
920 effectively empty on Android.
922 Fix regression in 2.56 which caused hex constants in
923 configuration to be rejected if they contain the '*'
926 Correct wrong casts of arguments to ctype.h functions,
927 isdigit(), isxdigit() etc. Thanks to Matthias Andree for
930 Allow build with IDN support independently from i18n.
931 IDN support continues to be included automatically
932 when i18n is included.
933 'make COPTS=-DHAVE_IDN' is the magic incantation.
935 Modify check on extraneous command line junk (added in
936 2.56) so that it doesn't complain about extra _empty_
937 arguments. Otherwise this breaks libvirt.
941 Add a patch to allow dnsmasq to get interface names right in a
942 Solaris zone. Thanks to Dj Padzensky for this.
944 Improve data-type parsing heuristics so that
945 --dhcp-option=option:domain-search,.
946 treats the value as a string and not an IP address.
947 Thanks to Clemens Fischer for spotting that.
949 Add IPv6 support to the TFTP server. Many thanks to Jan
950 'RedBully' Seiffert for the patches.
952 Log DNS queries at level LOG_INFO, rather then
953 LOG_DEBUG. This makes things consistent with DHCP
954 logging. Thanks to Adam Pribyl for spotting the problem.
956 Ensure that dnsmasq terminates cleanly when using
957 --syslog-async even if it cannot make a connection to the
960 Add --add-mac option. This is to support currently
961 experimental DNS filtering facilities. Thanks to Benjamin
962 Petrin for the orignal patch.
964 Fix bug which meant that tags were ignored in dhcp-range
965 configuration specifying PXE-proxy service. Thanks to
966 Cristiano Cumer for spotting this.
968 Raise an error if there is extra junk, not part of an
969 option, on the command line.
971 Flag a couple of log messages in cache.c as coming from
972 the DHCP subsystem. Thanks to Olaf Westrik for the patch.
974 Omit timestamps from logs when a) logging to stderr and
975 b) --keep-in-forground is set. The logging facility on the
976 other end of stderr can be assumned to supply them. Thanks
977 to John Hallam for the patch.
979 Don't complain about strings longer than 255 characters in
980 --txt-record, just split the long strings into 255
981 character chunks instead.
983 Fix crash on double-free. This bug can only happen when
984 dhcp-script is in use and then only in rare circumstances
985 triggered by high DHCP transaction rate and a slow
986 script. Thanks to Ferenc Wagner for finding the problem.
988 Only log that a file has been sent by TFTP after the
989 transfer has completed succesfully.
991 A good suggestion from Ferenc Wagner: extend
992 the --domain option to allow this sort of thing:
993 --domain=thekelleys.org.uk,192.168.0.0/24,local
994 which automatically creates
995 --local=/thekelleys.org.uk/
996 --local=/0.168.192.in-addr.arpa/
998 Tighten up syntax checking of hex contants in the config
999 file. Thanks to Fred Damen for spotting this.
1001 Add dnsmasq logo/icon, contributed by Justin Swift. Many
1004 Never cache DNS replies which have the 'cd' bit set, or
1005 which result from queries forwarded with the 'cd' bit
1006 set. The 'cd' bit instructs a DNSSEC validating server
1007 upstream to ignore signature failures and return replies
1008 anyway. Without this change it's possible to pollute the
1009 dnsmasq cache with bad data by making a query with the
1010 'cd' bit set and subsequent queries would return this data
1011 without its being marked as suspect. Thanks to Anders
1012 Kaseorg for pointing out this problem.
1014 Add --proxy-dnssec flag, for compliance with RFC
1015 4035. Dnsmasq will now clear the 'ad' bit in answers returned
1016 from upstream validating nameservers unless this option is
1019 Allow a filename of "-" for --conf-file to read
1020 stdin. Suggestion from Timothy Redaelli.
1022 Rotate the order of SRV records in replies, to provide
1023 round-robin load balancing when all the priorities are
1024 equal. Thanks to Peter McKinney for the suggestion.
1027 contrib/MacOSX-launchd/uk.org.thekelleys.dnsmasq.plist
1028 so that it doesn't log all queries to a file by
1029 default. Thanks again to Peter McKinney.
1031 By default, setting an IPv4 address for a domain but not
1032 an IPv6 address causes dnsmasq to return
1033 an NODATA reply for IPv6 (or vice-versa). So
1034 --address=/google.com/1.2.3.4 stops IPv6 queries for
1035 *google.com from being forwarded. Make it possible to
1036 override this behaviour by defining the sematics if the
1037 same domain appears in both --server and --address.
1038 In that case, the --address has priority for the address
1039 family in which is appears, but the --server has priority
1040 of the address family which doesn't appear in --adddress
1042 --address=/google.com/1.2.3.4
1043 --server=/google.com/#
1044 will return 1.2.3.4 for IPv4 queries for *.google.com but
1045 forward IPv6 queries to the normal upstream nameserver.
1046 Similarly when setting an IPv6 address
1047 only this will allow forwarding of IPv4 queries. Thanks to
1048 William for pointing out the need for this.
1050 Allow more than one --dhcp-optsfile and --dhcp-hostsfile
1051 and make them understand directories as arguments in the
1052 same way as --addn-hosts. Suggestion from John Hanks.
1054 Ignore rebinding requests for leases we don't know
1055 about. Rebind is broadcast, so we might get to overhear a
1056 request meant for another DHCP server. NAKing this is
1057 wrong. Thanks to Brad D'Hondt for assistance with this.
1059 Fix cosmetic bug which produced strange output when
1060 dumping cache statistics with some configurations. Thanks
1061 to Fedor Kozhevnikov for spotting this.
1065 Fix crash when /etc/ethers is in use. Thanks to
1066 Gianluigi Tiesi for finding this.
1068 Fix crash in netlink_multicast(). Thanks to Arno Wald for
1071 Allow the empty domain "." in dhcp domain-search (119)
1076 There is no version 2.54 to avoid confusion with 2.53,
1077 which incorrectly identifies itself as 2.54.
1081 Fix failure to compile on Debian/kFreeBSD. Thanks to
1082 Axel Beckert and Petr Salinger.
1084 Fix code to avoid scary strict-aliasing warnings
1085 generated by gcc 4.4.
1087 Added FAQ entry warning about DHCP failures with Vista
1088 when firewalls block 255.255.255.255.
1090 Fixed bug which caused bad things to happen if a
1091 resolv.conf file which exists is subsequently removed.
1092 Thanks to Nikolai Saoukh for the patch.
1094 Rationalised the DHCP tag system. Every configuration item
1095 which can set a tag does so by adding "set:<tag>" and
1096 every configuration item which is conditional on a tag is
1097 made so by "tag:<tag>". The NOT operator changes to '!',
1098 which is a bit more intuitive too. Dhcp-host directives
1099 can set more than one tag now. The old '#' NOT,
1100 "net:" prefix and no-prefixes are still honoured, so
1101 no existing config file needs to be changed, but
1102 the documentation and new-style config files should be
1103 much less confusing.
1105 Added --tag-if to allow boolean operations on tags.
1106 This allows complicated logic to be clearer and more
1107 general. A great suggestion from Richard Voigt.
1109 Add broadcast/unicast information to DHCP logging.
1111 Allow --dhcp-broadcast to be unconditional.
1113 Fixed incorrect behaviour with NOT <tag> conditionals in
1114 dhcp-options. Thanks to Max Turkewitz for assistance
1117 If we send vendor-class encapsulated options based on the
1118 vendor-class supplied by the client, and no explicit
1119 vendor-class option is given, echo back the vendor-class
1122 Fix bug which stopped dnsmasq from matching both a
1123 circuitid and a remoteid. Thanks to Ignacio Bravo for
1126 Add --dhcp-proxy, which makes it possible to configure
1127 dnsmasq to use a DHCP relay agent as a full proxy, with
1128 all DHCP messages passing through the proxy. This is
1129 useful if the relay adds extra information to the packets
1130 it forwards, but cannot be configured with the RFC 5107
1131 server-override option.
1133 Added interface:<iface name> part to dhcp-range. The
1134 semantics of this are very odd at first sight, but it
1135 allows a single line of the form
1136 dhcp-range=interface:virt0,192.168.0.4,192.168.0.200
1137 to be added to dnsmasq configuration which then supplies
1138 DHCP and DNS services to that interface, without affecting
1139 what services are supplied to other interfaces and
1140 irrespective of the existance or lack of
1141 interface=<interface>
1142 lines elsewhere in the dnsmasq configuration. The idea is
1143 that such a line can be added automatically by libvirt
1144 or equivalent systems, without disturbing any manual
1147 Similarly to the above, allow --enable-tftp=<interface>
1149 Allow a TFTP root to be set separately for requests via
1150 different interfaces, --tftp-root=<path>,<interface>
1152 Correctly handle and log clashes between CNAMES and
1153 DNS names being given to DHCP leases. This fixes a bug
1154 which caused nonsense IP addresses to be logged. Thanks to
1155 Sergei Zhirikov for finding and analysing the problem.
1157 Tweak flush_log so as to avoid leaving the log
1158 file in non-blocking mode. O_NONBLOCK is a property of the
1159 file, not the process/descriptor.
1161 Fix contrib/Solaris10/create_package
1162 (/usr/man -> /usr/share/man) Thanks to Vita Batrla.
1164 Fix a problem where, if a client got a lease, then went
1165 to another subnet and got another lease, then moved back,
1166 it couldn't resume the old lease, but would instead get
1167 a new address. Thanks to Leonardo Rodrigues for spotting
1168 this and testing the fix.
1170 Fix weird bug which sometimes omitted certain characters
1171 from the start of quoted strings in dhcp-options. Thanks
1172 to Dayton Turner for spotting the problem.
1174 Add facility to redirect some domains to the standard
1175 upstream servers: this allows something like
1176 --server=/google.com/1.2.3.4 --server=/www.google.com/#
1177 which will send queries for *.google.com to 1.2.3.4,
1178 except *www.google.com which will be forwarded as usual.
1179 Thanks to AJ Weber for prompting this addition.
1181 Improve the hash-algorithm used to generate IP addresses
1182 from MAC addresses during initial DHCP address
1183 allocation. This improves performance when large numbers
1184 of hosts with similar MAC addresses all try and get an IP
1185 address at the same time. Thanks to Paul Smith for his
1188 Tweak DHCP code so that --bridge-interface can be used to
1189 select which IP alias of an interface should be used for
1190 DHCP purposes on Linux. If eth0 has an alias eth0:dhcp
1191 then adding --bridge-interface=eth0:dhcp,eth0 will use
1192 the address of eth0:dhcp to determine the correct subnet
1193 for DHCP address allocation. Thanks to Pawel Golaszewski
1194 for prompting this and Eric Cooper for further testing.
1196 Add --dhcp-generate-names. Suggestion by Ferenc Wagner.
1198 Tweak DNS server selection algorithm when there is more
1199 than one server available for a domain, eg.
1200 --server=/mydomain/1.1.1.1
1201 --server=/mydomain/2.2.2.2
1202 Thanks to Alberto Cuesta-Canada for spotting a weakness
1205 Add --max-ttl. Thanks to Fredrik Ringertz for the patch.
1207 Allow --log-facility=- to force all logging to
1208 stderr. Suggestion from Clemens Fischer.
1210 Fix regression which caused configuration like
1211 --address=/.domain.com/1.2.3.4 to be rejected. The dot to the
1212 left of the domain has been implied and not required for a
1213 long time, but it should be accepted for backward
1214 compatibility. Thanks to Andrew Burcin for spotting this.
1216 Add --rebind-domain-ok and --rebind-localhost-ok.
1217 Suggestion from Clemens Fischer.
1219 Log replies to queries of type TXT, when --log-queries
1222 Fix compiler warnings when compiled with -DNO_DHCP. Thanks
1223 to Shantanu Gadgil for the patch.
1225 Updated French translation. Thanks to Gildas Le Nadan.
1227 Updated Polish translation. Thanks to Jan Psota.
1229 Updated German translation. Thanks to Matthias Andree.
1231 Added contrib/static-arp, thanks to Darren Hoo.
1233 Fix corruption of the domain when a name from /etc/hosts
1234 overrides one supplied by a DHCP client. Thanks to Fedor
1235 Kozhevnikov for spotting the problem.
1237 Updated Spanish translation. Thanks to Chris Chatham.
1241 Work around a Linux kernel bug which insists that the
1242 length of the option passed to setsockopt must be at least
1243 sizeof(int) bytes, even if we're calling SO_BINDTODEVICE
1244 and the device name is "lo". Note that this is fixed
1245 in kernel 2.6.31, but the workaround is harmless and
1246 allows earlier kernels to be used. Also fix dnsmasq
1247 bug which reported the wrong address when this failed.
1248 Thanks to Fedor for finding this.
1250 The API for IPv6 PKTINFO changed around Linux kernel
1251 2.6.14. Workaround the case where dnsmasq is compiled
1252 against newer headers, but then run on an old kernel:
1253 necessary for some *WRT distros.
1255 Re-read the set of network interfaces when re-loading
1256 /etc/resolv.conf if --bind-interfaces is not set. This
1257 handles the case that loopback interfaces do not exist
1258 when dnsmasq is first started.
1260 Tweak the PXE code to support port 4011. This should
1261 reduce broadcasts and make things more reliable when other
1262 servers are around. It also improves inter-operability
1263 with certain clients.
1265 Make a pxe-service configuration with no filename or boot
1266 service type legal: this does a local boot. eg.
1267 pxe-service=x86PC, "Local boot"
1269 Be more conservative in detecting "A for A"
1270 queries. Dnsmasq checks if the name in a type=A query looks
1271 like a dotted-quad IP address and answers the query itself
1272 if so, rather than forwarding it. Previously dnsmasq
1273 relied in the library function inet_addr() to convert
1274 addresses, and that will accept some things which are
1275 confusing in this context, like 1.2.3 or even just
1276 1234. Now we only do A for A processing for four decimal
1277 numbers delimited by dots.
1279 A couple of tweaks to fix compilation on Solaris. Thanks
1280 to Joel Macklow for help with this.
1282 Another Solaris compilation tweak, needed for Solaris
1283 2009.06. Thanks to Lee Essen for that.
1285 Added extract packaging stuff from Lee Essen to
1288 Increased the default limit on number of leases to 1000
1289 (from 150). This is mainly a defence against DoS attacks,
1290 and for the average "one for two class C networks"
1291 installation, IP address exhaustion does that just as
1292 well. Making the limit greater than the number of IP
1293 addresses available in such an installation removes a
1294 surprise which otherwise can catch people out.
1296 Removed extraneous trailing space in the value of the
1297 DNSMASQ_TIME_REMAINING DNSMASQ_LEASE_LENGTH and
1298 DNSMASQ_LEASE_EXPIRES environment variables. Thanks to
1299 Gildas Le Nadan for spotting this.
1301 Provide the network-id tags for a DHCP transaction to
1302 the lease-change script in the environment variable
1303 DNSMASQ_TAGS. A good suggestion from Gildas Le Nadan.
1305 Add support for RFC3925 "Vendor-Identifying Vendor
1306 Options". The syntax looks like this:
1307 --dhcp-option=vi-encap:<enterprise number>, .........
1309 Add support to --dhcp-match to allow matching against
1310 RFC3925 "Vendor-Identifying Vendor Classes". The syntax
1312 --dhcp-match=tag,vi-encap<enterprise number>, <value>
1314 Add some application specific code to assist in
1315 implementing the Broadband forum TR069 CPE-WAN
1316 specification. The details are in contrib/CPE-WAN/README
1318 Increase the default DNS packet size limit to 4096, as
1319 recommended by RFC5625 section 4.4.3. This can be
1320 reconfigured using --edns-packet-max if needed. Thanks to
1321 Francis Dupont for pointing this out.
1323 Rewrite query-ids even for TSIG signed packets, since
1324 this is allowed by RFC5625 section 4.5.
1326 Use getopt_long by default on OS X. It has been supported
1327 since version 10.3.0. Thanks to Arek Dreyer for spotting
1330 Added up-to-date startup configuration for MacOSX/launchd
1331 in contrib/MacOSX-launchd. Thanks to Arek Dreyer for
1334 Fix link error when including Dbus but excluding DHCP.
1335 Thanks to Oschtan for the bug report.
1337 Updated French translation. Thanks to Gildas Le Nadan.
1339 Updated Polish translation. Thanks to Jan Psota.
1341 Updated Spanish translation. Thanks to Chris Chatham.
1343 Fixed confusion about domains, when looking up DHCP hosts
1344 in /etc/hosts. This could cause spurious "Ignoring
1345 domain..." messages. Thanks to Fedor Kozhevnikov for
1346 finding and analysing the problem.
1350 Add support for internationalised DNS. Non-ASCII characters
1351 in domain names found in /etc/hosts, /etc/ethers and
1352 /etc/dnsmasq.conf will be correctly handled by translation to
1353 punycode, as specified in RFC3490. This function is only
1354 available if dnsmasq is compiled with internationalisation
1355 support, and adds a dependency on GNU libidn. Without i18n
1356 support, dnsmasq continues to be compilable with just
1357 standard tools. Thanks to Yves Dorfsman for the
1360 Add two more environment variables for lease-change scripts:
1361 First, DNSMASQ_SUPPLIED_HOSTNAME; this is set to the hostname
1362 supplied by a client, even if the actual hostname used is
1363 over-ridden by dhcp-host or dhcp-ignore-names directives.
1364 Also DNSMASQ_RELAY_ADDRESS which gives the address of
1365 a DHCP relay, if used.
1366 Suggestions from Michael Rack.
1368 Fix regression which broke echo of relay-agent
1369 options. Thanks to Michael Rack for spotting this.
1371 Don't treat option 67 as being interchangeable with
1372 dhcp-boot parameters if it's specified as
1375 Make the code to call scripts on lease-change compile-time
1376 optional. It can be switched off by editing src/config.h
1377 or building with "make COPTS=-DNO_SCRIPT".
1379 Make the TFTP server cope with filenames from Windows/DOS
1380 which use '\' as pathname separator. Thanks to Ralf for
1383 Updated Polish translation. Thanks to Jan Psota.
1385 Warn if an IP address is duplicated in /etc/ethers. Thanks
1386 to Felix Schwarz for pointing this out.
1388 Teach --conf-dir to take an option list of file suffices
1389 which will be ignored when scanning the directory. Useful
1390 for backup files etc. Thanks to Helmut Hullen for the
1393 Add new DHCP option named tftpserver-address, which
1394 corresponds to the third argument of dhcp-boot. This
1395 allows the complete functionality of dhcp-boot to be
1396 replicated with dhcp-option. Useful when using
1399 Test which upstream nameserver to use every 10 seconds
1400 or 50 queries and not just when a query times out and
1401 is retried. This should improve performance when there
1402 is a slow nameserver in the list. Thanks to Joe for the
1405 Don't do any PXE processing, even for clients with the
1406 correct vendorclass, unless at least one pxe-prompt or
1407 pxe-service option is given. This stops dnsmasq
1408 interfering with proxy PXE subsystems when it is just
1409 the DHCP server. Thanks to Spencer Clark for spotting this.
1411 Limit the blocksize used for TFTP transfers to a value
1412 which avoids packet fragmentation, based on the MTU of the
1413 local interface. Many netboot ROMs can't cope with
1416 Honour dhcp-ignore configuration for PXE and proxy-PXE
1417 requests. Thanks to Niels Basjes for the bug report.
1419 Updated French translation. Thanks to Gildas Le Nadan.
1423 Fix security problem which allowed any host permitted to
1424 do TFTP to possibly compromise dnsmasq by remote buffer
1425 overflow when TFTP enabled. Thanks to Core Security
1426 Technologies and Iván Arce, Pablo Hernán Jorge, Alejandro
1427 Pablo Rodriguez, Martín Coco, Alberto Soliño Testa and
1428 Pablo Annetta. This problem has Bugtraq id: 36121
1431 Fix a problem which allowed a malicious TFTP client to
1432 crash dnsmasq. Thanks to Steve Grubb at Red Hat for
1433 spotting this. This problem has Bugtraq id: 36120 and
1438 Fix regression in 2.48 which disables the lease-change
1439 script. Thanks to Jose Luis Duran for spotting this.
1441 Log TFTP "file not found" errors. These were not logged,
1442 since a normal PXELinux boot generates many of them, but
1443 the lack of the messages seems to be more confusing than
1444 routinely seeing them when there is no real error.
1446 Update Spanish translation. Thanks to Chris Chatham.
1450 Archived the extensive, backwards, changelog to
1451 CHANGELOG.archive. The current changelog now runs from
1452 version 2.43 and runs conventionally.
1454 Fixed bug which broke binding of servers to physical
1455 interfaces when interface names were longer than four
1456 characters. Thanks to MURASE Katsunori for the patch.
1458 Fixed netlink code to check that messages come from the
1459 correct source, and not another userspace process. Thanks
1460 to Steve Grubb for the patch.
1462 Maintainability drive: removed bug and missing feature
1463 workarounds for some old platforms. Solaris 9, OpenBSD
1464 older than 4.1, Glibc older than 2.2, Linux 2.2.x and
1465 DBus older than 1.1.x are no longer supported.
1467 Don't read included configuration files more than once:
1468 allows complex configuration structures without problems.
1470 Mark log messages from the various subsystems in dnsmasq:
1471 messages from the DHCP subsystem now have the ident string
1472 "dnsmasq-dhcp" and messages from TFTP have ident
1473 "dnsmasq-tftp". Thanks to Olaf Westrik for the patch.
1475 Fix possible infinite DHCP protocol loop when an IP
1476 address nailed to a hostname (not a MAC address) and a
1477 host sometimes provides the name, sometimes not.
1479 Allow --addn-hosts to take a directory: all the files
1480 in the directory are read. Thanks to Phil Cornelius for
1483 Support --bridge-interface on all platforms, not just BSD.
1485 Added support for advanced PXE functions. It's now
1486 possible to define a prompt and menu options which will
1487 be displayed when a client PXE boots. It's also possible to
1488 hand-off booting to other boot servers. Proxy-DHCP, where
1489 dnsmasq just supplies the PXE information and another DHCP
1490 server does address allocation, is also allowed. See the
1491 --pxe-prompt and --pxe-service keywords. Thanks to
1492 Alkis Georgopoulos for the suggestion and Guilherme Moro
1493 and Michael Brown for assistance.
1495 Improvements to DHCP logging. Thanks to Tom Metro for
1498 Add ability to build dnsmasq without DHCP support. To do
1499 this, edit src/config.h or build with
1500 "make COPTS=-DNO_DHCP". Thanks to Mahavir Jain for the patch.
1502 Added --test command-line switch - syntax check
1503 configuration files only.
1505 Updated French translation. Thanks to Gildas Le Nadan.
1509 Updated French translation. Thanks to Gildas Le Nadan.
1511 Fixed interface enumeration code to work on NetBSD
1512 5.0. Thanks to Roy Marples for the patch.
1514 Updated config.h to use the same location for the lease
1515 file on NetBSD as the other *BSD variants. Also allow
1516 LEASEFILE and CONFFILE symbols to be overriden in CFLAGS.
1518 Handle duplicate address detection on IPv6 more
1519 intelligently. In IPv6, an interface can have an address
1520 which is not usable, because it is still undergoing DAD
1521 (such addresses are marked "tentative"). Attempting to
1522 bind to an address in this state returns an error,
1523 EADDRNOTAVAIL. Previously, on getting such an error,
1524 dnsmasq would silently abandon the address, and never
1525 listen on it. Now, it retries once per second for 20
1526 seconds before generating a fatal error. 20 seconds should
1527 be long enough for any DAD process to complete, but can be
1528 adjusted in src/config.h if necessary. Thanks to Martin
1529 Krafft for the bug report.
1531 Add DBus introspection. Patch from Jeremy Laine.
1533 Update Dbus configuration file. Patch from Colin Walters.
1535 http://bugs.freedesktop.org/show_bug.cgi?id=18961
1537 Support arbitrarily encapsulated DHCP options, suggestion
1538 and initial patch from Samium Gromoff. This is useful for
1539 (eg) gPXE, which expect all its private options to be
1540 encapsulated inside a single option 175. So, eg,
1542 dhcp-option = encap:175, 190, "iscsi-client0"
1543 dhcp-option = encap:175, 191, "iscsi-client0-secret"
1545 will provide iSCSI parameters to gPXE.
1547 Enhance --dhcp-match to allow testing of the contents of a
1548 client-sent option, as well as its presence. This
1549 application in mind for this is RFC 4578
1550 client-architecture specifiers, but it's generally useful.
1551 Joey Korkames suggested the enhancement.
1553 Move from using the IP_XMIT_IF ioctl to IP_BOUND_IF on
1554 OpenSolaris. Thanks to Bastian Machek for the heads-up.
1556 No longer complain about blank lines in
1557 /etc/ethers. Thanks to Jon Nelson for the patch.
1559 Fix binding of servers to physical devices, eg
1560 --server=/domain/1.2.3.4@eth0 which was broken from 2.43
1561 onwards unless --query-port=0 set. Thanks to Peter Naulls
1564 Reply to DHCPINFORM requests even when the supplied ciaddr
1565 doesn't fall in any dhcp-range. In this case it's not
1566 possible to supply a complete configuration, but
1567 individually-configured options (eg PAC) may be useful.
1569 Allow the source address of an alias to be a range:
1570 --alias=192.168.0.0,10.0.0.0,255.255.255.0 maps the whole
1571 subnet 192.168.0.0->192.168.0.255 to 10.0.0.0->10.0.0.255,
1573 --alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
1574 maps only the 192.168.0.10->192.168.0.40 region. Thanks to
1575 Ib Uhrskov for the suggestion.
1577 Don't dynamically allocate DHCP addresses which may break
1578 Windows. Addresses which end in .255 or .0 are broken in
1579 Windows even when using supernetting.
1580 --dhcp-range=192.168.0.1,192.168.1.254,255,255,254.0 means
1581 192.168.0.255 is a valid IP address, but not for Windows.
1582 See Microsoft KB281579. We therefore no longer allocate
1583 these addresses to avoid hard-to-diagnose problems.
1585 Update Polish translation. Thanks to Jan Psota.
1587 Delete the PID-file when dnsmasq shuts down. Note that by
1588 this time, dnsmasq is normally not running as root, so
1589 this will fail if the PID-file is stored in a root-owned
1590 directory; such failure is silently ignored. To take
1591 advantage of this feature, the PID-file must be stored in a
1592 directory owned and write-able by the user running
1597 Allow --bootp-dynamic to take a netid tag, so that it may
1598 be selectively enabled. Thanks to Olaf Westrik for the
1601 Remove ISC-leasefile reading code. This has been
1602 deprecated for a long time, and last time I removed it, it
1603 ended up going back by request of one user. This time,
1604 it's gone for good; otherwise it would need to be
1605 re-worked to support multiple domains (see below).
1607 Support DHCP clients in multiple DNS domains. This is a
1608 long-standing request. Clients are assigned to a domain
1609 based in their IP address.
1611 Add --dhcp-fqdn flag, which changes behaviour if DNS names
1612 assigned to DHCP clients. When this is set, there must be
1613 a domain associated with each client, and only
1614 fully-qualified domain names are added to the DNS. The
1615 advantage is that the only the FQDN needs to be unique,
1616 so that two or more DHCP clients can share a hostname, as
1617 long as they are in different domains.
1619 Set environment variable DNSMASQ_DOMAIN when invoking
1620 lease-change script. This may be useful information to
1621 have now that it's variable.
1623 Tighten up data-checking code for DNS packet
1624 handling. Thanks to Steve Dodd who found certain illegal
1625 packets which could crash dnsmasq. No memory overwrite was
1626 possible, so this is not a security issue beyond the DoS
1629 Update example config dhcp option 47, the previous
1630 suggestion generated an illegal, zero-length,
1631 option. Thanks to Matthias Andree for finding this.
1633 Rewrite hosts-file reading code to remove the limit of
1634 1024 characters per line. John C Meuser found this.
1636 Create a net-id tag with the name of the interface on
1637 which the DHCP request was received.
1639 Fixed minor memory leak in DBus code, thanks to Jeremy
1640 Laine for the patch.
1642 Emit DBus signals as the DHCP lease database
1643 changes. Thanks to Jeremy Laine for the patch.
1645 Allow for more that one MAC address in a dhcp-host
1646 line. This configuration tells dnsmasq that it's OK to
1647 abandon a DHCP lease of the fixed address to one MAC
1648 address, if another MAC address in the dhcp-host statement
1649 asks for an address. This is useful to give a fixed
1650 address to a host which has two network interfaces
1651 (say, a laptop with wired and wireless interfaces.)
1652 It's very important to ensure that only one interface
1653 at a time is up, since dnsmasq abandons the first lease
1654 and re-uses the address before the leased time has
1655 elapsed. John Gray suggested this.
1657 Tweak the response to a DHCP request packet with a wrong
1658 server-id when --dhcp-authoritative is set; dnsmasq now
1659 returns a DHCPNAK, rather than silently ignoring the
1660 packet. Thanks to Chris Marget for spotting this
1663 Add --cname option. This provides a limited alias
1664 function, usable for DHCP names. Thanks to AJ Weber for
1665 suggestions on this.
1667 Updated contrib/webmin with latest version from Neil
1670 Updated Polish translation. Thanks to Jan Psota.
1672 Correct the text names for DHCP options 64 and 65 to be
1673 "nis+-domain" and "nis+-servers".
1675 Updated Spanish translation. Thanks to Chris Chatham.
1677 Force re-reading of /etc/resolv.conf when an "interface
1682 Fix total DNS failure in release 2.44 unless --min-port
1683 specified. Thanks to Steven Barth and Grant Coady for
1684 bugreport. Also reject out-of-range port spec, which could
1685 break things too: suggestion from Gilles Espinasse.
1689 Fix crash when unknown client attempts to renew a DHCP
1690 lease, problem introduced in version 2.43. Thanks to
1691 Carlos Carvalho for help chasing this down.
1693 Fix potential crash when a host which doesn't have a lease
1694 does DHCPINFORM. Again introduced in 2.43. This bug has
1695 never been reported in the wild.
1697 Fix crash in netlink code introduced in 2.43. Thanks to
1698 Jean Wolter for finding this.
1700 Change implementation of min_port to work even if min-port
1703 Patch to enable compilation of latest Mac OS X. Thanks to
1706 Update Spanish translation. Thanks to Christopher Chatham.
1710 Updated Polish translation. Thanks to Jan Psota.
1712 Flag errors when configuration options are repeated
1715 Further tweaks for GNU/kFreeBSD
1717 Add --no-wrap to msgmerge call - provides nicer .po file
1720 Honour lease-time spec in dhcp-host lines even for
1721 BOOTP. The user is assumed to known what they are doing in
1722 this case. (Hosts without the time spec still get infinite
1723 leases for BOOTP, over-riding the default in the
1724 dhcp-range.) Thanks to Peter Katzmann for uncovering this.
1726 Fix problem matching relay-agent ids. Thanks to Michael
1727 Rack for the bug report.
1729 Add --naptr-record option. Suggestion from Johan
1732 Implement RFC 5107 server-id-override DHCP relay agent
1735 Apply patches from Stefan Kruger for compilation on
1736 Solaris 10 under Sun studio.
1738 Yet more tweaking of Linux capability code, to suppress
1739 pointless wingeing from kernel 2.6.25 and above.
1741 Improve error checking during startup. Previously, some
1742 errors which occurred during startup would be worked
1743 around, with dnsmasq still starting up. Some were logged,
1744 some silent. Now, they all cause a fatal error and dnsmasq
1745 terminates with a non-zero exit code. The errors are those
1746 associated with changing uid and gid, setting process
1747 capabilities and writing the pidfile. Thanks to Uwe
1748 Gansert and the Suse security team for pointing out
1749 this improvement, and Bill Reimers for good implementation
1752 Provide NO_LARGEFILE compile option to switch off largefile
1753 support when compiling against versions of uclibc which
1754 don't support it. Thanks to Stephane Billiart for the patch.
1756 Implement random source ports for interactions with
1757 upstream nameservers. New spoofing attacks have been found
1758 against nameservers which do not do this, though it is not
1759 clear if dnsmasq is vulnerable, since to doesn't implement
1760 recursion. By default dnsmasq will now use a different
1761 source port (and socket) for each query it sends
1762 upstream. This behaviour can suppressed using the
1763 --query-port option, and the old default behaviour
1764 restored using --query-port=0. Explicit source-port
1765 specifications in --server configs are still honoured.
1767 Replace the random number generator, for better
1768 security. On most BSD systems, dnsmasq uses the
1769 arc4random() RNG, which is secure, but on other platforms,
1770 it relied on the C-library RNG, which may be
1771 guessable and therefore allow spoofing. This release
1772 replaces the libc RNG with the SURF RNG, from Daniel
1773 J. Berstein's DJBDNS package.
1775 Don't attempt to change user or group or set capabilities
1776 if dnsmasq is run as a non-root user. Without this, the
1777 change from soft to hard errors when these fail causes
1778 problems for non-root daemons listening on high
1779 ports. Thanks to Patrick McLean for spotting this.
1781 Updated French translation. Thanks to Gildas Le Nadan.
1785 The changelog for version 2.42 and earlier is
1786 available in CHANGELOG.archive.
projects / people / ms / dnsmasq.git / blob