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1 version 2.70
2 Fix crash, introduced in 2.69, on TCP request when dnsmasq
3 compiled with DNSSEC support, but running without DNSSEC
4 enabled. Thanks to Manish Sing for spotting that one.
6 Fix regression which broke ipset functionality. Thanks to
7 Wang Jian for the bug report.
10 version 2.69
11 Implement dynamic interface discovery on *BSD. This allows
12 the contructor: syntax to be used in dhcp-range for DHCPv6
13 on the BSD platform. Thanks to Matthias Andree for
14 valuable research on how to implement this.
16 Fix infinite loop associated with some --bogus-nxdomain
17 configs. Thanks fogobogo for the bug report.
19 Fix missing RA RDNS option with configuration like
20 --dhcp-option=option6:23,[::] Thanks to Tsachi Kimeldorfer
21 for spotting the problem.
23 Add [fd00::] and [fe80::] as special addresses in DHCPv6
24 options, analogous to [::]. [fd00::] is replaced with the
25 actual ULA of the interface on the machine running
26 dnsmasq, [fe80::] with the link-local address.
27 Thanks to Tsachi Kimeldorfer for championing this.
29 DNSSEC validation and caching. Dnsmasq needs to be
30 compiled with this enabled, with
32 make dnsmasq COPTS=-DHAVE_DNSSEC
34 this add dependencies on the nettle crypto library and the
35 gmp maths library. It's possible to have these linked
36 statically with
38 make dnsmasq COPTS='-DHAVE_DNSSEC -DHAVE_DNSSEC_STATIC'
40 which bloats the dnsmasq binary, but saves the size of
41 the shared libraries which are much bigger.
43 To enable, DNSSEC, you will need a set of
44 trust-anchors. Now that the TLDs are signed, this can be
45 the keys for the root zone, and for convenience they are
46 included in trust-anchors.conf in the dnsmasq
47 distribution. You should of course check that these are
48 legitimate and up-to-date. So, adding
50 conf-file=/path/to/trust-anchors.conf
51 dnssec
53 to your config is all thats needed to get things
54 working. The upstream nameservers have to be DNSSEC-capable
55 too, of course. Many ISP nameservers aren't, but the
56 Google public nameservers (8.8.8.8 and 8.8.4.4) are.
57 When DNSSEC is configured, dnsmasq validates any queries
58 for domains which are signed. Query results which are
59 bogus are replaced with SERVFAIL replies, and results
60 which are correctly signed have the AD bit set. In
61 addition, and just as importantly, dnsmasq supplies
62 correct DNSSEC information to clients which are doing
63 their own validation, and caches DNSKEY, DS and RRSIG
64 records, which significantly improve the performance of
65 downstream validators. Setting --log-queries will show
66 DNSSEC in action.
68 If a domain is returned from an upstream nameserver without
69 DNSSEC signature, dnsmasq by default trusts this. This
70 means that for unsigned zone (still the majority) there
71 is effectively no cost for having DNSSEC enabled. Of course
72 this allows an attacker to replace a signed record with a
73 false unsigned record. This is addressed by the
74 --dnssec-check-unsigned flag, which instructs dnsmasq
75 to prove that an unsigned record is legitimate, by finding
76 a secure proof that the zone containing the record is not
77 signed. Doing this has costs (typically one or two extra
78 upstream queries). It also has a nasty failure mode if
79 dnsmasq's upstream nameservers are not DNSSEC capable.
80 Without --dnssec-check-unsigned using such an upstream
81 server will simply result in not queries being validated;
82 with --dnssec-check-unsigned enabled and a
83 DNSSEC-ignorant upstream server, _all_ queries will fail.
85 Note that DNSSEC requires that the local time is valid and
86 accurate, if not then DNSSEC validation will fail. NTP
87 should be running. This presents a problem for routers
88 without a battery-backed clock. To set the time needs NTP
89 to do DNS lookups, but lookups will fail until NTP has run.
90 To address this, there's a flag, --dnssec-no-timecheck
91 which disables the time checks (only) in DNSSEC. When dnsmasq
92 is started and the clock is not synced, this flag should
93 be used. As soon as the clock is synced, SIGHUP dnsmasq.
94 The SIGHUP clears the cache of partially-validated data and
95 resets the no-timecheck flag, so that all DNSSEC checks
96 henceforward will be complete.
98 The development of DNSSEC in dnsmasq was started by
99 Giovanni Bajo, to whom huge thanks are owed. It has been
100 supported by Comcast, whose techfund grant has allowed for
101 an invaluable period of full-time work to get it to
102 a workable state.
104 Add --rev-server. Thanks to Dave Taht for suggesting this.
106 Add --servers-file. Allows dynamic update of upstream servers
107 full access to configuration.
109 Add --local-service. Accept DNS queries only from hosts
110 whose address is on a local subnet, ie a subnet for which
111 an interface exists on the server. This option
112 only has effect if there are no --interface --except-interface,
113 --listen-address or --auth-server options. It is intended
114 to be set as a default on installation, to allow
115 unconfigured installations to be useful but also safe from
116 being used for DNS amplification attacks.
118 Fix crashes in cache_get_cname_target() when dangling CNAMEs
119 encountered. Thanks to Andy and the rt-n56u project for
120 find this and helping to chase it down.
122 Fix wrong RCODE in authoritative DNS replies to PTR queries. The
123 correct answer was included, but the RCODE was set to NXDOMAIN.
124 Thanks to Craig McQueen for spotting this.
126 Make statistics available as DNS queries in the .bind TLD as
127 well as logging them.
130 version 2.68
131 Use random addresses for DHCPv6 temporary address
132 allocations, instead of algorithmically determined stable
133 addresses.
135 Fix bug which meant that the DHCPv6 DUID was not available
136 in DHCP script runs during the lifetime of the dnsmasq
137 process which created the DUID de-novo. Once the DUID was
138 created and stored in the lease file and dnsmasq
139 restarted, this bug disappeared.
141 Fix bug introduced in 2.67 which could result in erroneous
142 NXDOMAIN returns to CNAME queries.
144 Fix build failures on MacOS X and openBSD.
146 Allow subnet specifications in --auth-zone to be interface
147 names as well as address literals. This makes it possible
148 to configure authoritative DNS when local address ranges
149 are dynamic and works much better than the previous
150 work-around which exempted contructed DHCP ranges from the
151 IP address filtering. As a consequence, that work-around
152 is removed. Under certain circumstances, this change wil
153 break existing configuration: if you're relying on the
154 contructed-range exception, you need to change --auth-zone
155 to specify the same interface as is used to construct your
156 DHCP ranges, probably with a trailing "/6" like this:
157 --auth-zone=example.com,eth0/6 to limit the addresses to
158 IPv6 addresses of eth0.
160 Fix problems when advertising deleted IPv6 prefixes. If
161 the prefix is deleted (rather than replaced), it doesn't
162 get advertised with zero preferred time. Thanks to Tsachi
163 for the bug report.
165 Fix segfault with some locally configured CNAMEs. Thanks
166 to Andrew Childs for spotting the problem.
168 Fix memory leak on re-reading /etc/hosts and friends,
169 introduced in 2.67.
171 Check the arrival interface of incoming DNS and TFTP
172 requests via IPv6, even in --bind-interfaces mode. This
173 isn't possible for IPv4 and can generate scary warnings,
174 but as it's always possible for IPv6 (the API always
175 exists) then we should do it always.
177 Tweak the rules on prefix-lengths in --dhcp-range for
178 IPv6. The new rule is that the specified prefix length
179 must be larger than or equal to the prefix length of the
180 corresponding address on the local interface.
183 version 2.67
184 Fix crash if upstream server returns SERVFAIL when
185 --conntrack in use. Thanks to Giacomo Tazzari for finding
186 this and supplying the patch.
188 Repair regression in 2.64. That release stopped sending
189 lease-time information in the reply to DHCPINFORM
190 requests, on the correct grounds that it was a standards
191 violation. However, this broke the dnsmasq-specific
192 dhcp_lease_time utility. Now, DHCPINFORM returns
193 lease-time only if it's specifically requested
194 (maintaining standards) and the dhcp_lease_time utility
195 has been taught to ask for it (restoring functionality).
197 Fix --dhcp-match, --dhcp-vendorclass and --dhcp-userclass
198 to work with BOOTP and well as DHCP. Thanks to Peter
199 Korsgaard for spotting the problem.
201 Add --synth-domain. Thanks to Vishvananda Ishaya for
202 suggesting this.
204 Fix failure to compile ipset.c if old kernel headers are
205 in use. Thanks to Eugene Rudoy for pointing this out.
207 Handle IPv4 interface-address labels in Linux. These are
208 often used to emulate the old IP-alias addresses. Before,
209 using --interface=eth0 would service all the addresses of
210 eth0, including ones configured as aliases, which appear
211 in ifconfig as eth0:0. Now, only addresses with the label
212 eth0 are active. This is not backwards compatible: if you
213 want to continue to bind the aliases too, you need to add
214 eg. --interface=eth0:0 to the config.
216 Fix "failed to set SO_BINDTODEVICE on DHCP socket: Socket
217 operation on non-socket" error on startup with
218 configurations which have exactly one --interface option
219 and do RA but _not_ DHCPv6. Thanks to Trever Adams for the
220 bug report.
222 Generalise --interface-name to cope with IPv6 addresses
223 and multiple addresses per interface per address family.
225 Fix option parsing for --dhcp-host, which was generating a
226 spurious error when all seven possible items were
227 included. Thanks to Zhiqiang Wang for the bug report.
229 Remove restriction on prefix-length in --auth-zone. Thanks
230 to Toke Hoiland-Jorgensen for suggesting this.
232 Log when the maximum number of concurrent DNS queries is
233 reached. Thanks to Marcelo Salhab Brogliato for the patch.
235 If wildcards are used in --interface, don't assume that
236 there will only ever be one available interface for DHCP
237 just because there is one at start-up. More may appear, so
238 we can't use SO_BINDTODEVICE. Thanks to Natrio for the bug
239 report.
241 Increase timeout/number of retries in TFTP to accomodate
242 AudioCodes Voice Gateways doing streaming writes to flash.
243 Thanks to Damian Kaczkowski for spotting the problem.
245 Fix crash with empty DHCP string options when adding zero
246 terminator. Thanks to Patrick McLean for the bug report.
248 Allow hostnames to start with a number, as allowed in
249 RFC-1123. Thanks to Kyle Mestery for the patch.
251 Fixes to DHCP FQDN option handling: don't terminate FQDN
252 if domain not known and allow a FQDN option with blank
253 name to request that a FQDN option is returned in the
254 reply. Thanks to Roy Marples for the patch.
256 Make --clear-on-reload apply to setting upstream servers
257 via DBus too.
259 When the address which triggered the construction of an
260 advertised IPv6 prefix disappears, continue to advertise
261 the prefix for up to 2 hours, with the preferred lifetime
262 set to zero. This satisfies RFC 6204 4.3 L-13 and makes
263 things work better if a prefix disappears without being
264 deprecated first. Thanks to Uwe Schindler for persuasively
265 arguing for this.
267 Fix MAC address enumeration on *BSD. Thanks to Brad Smith
268 for the bug report.
270 Support RFC-4242 information-refresh-time options in the
271 reply to DHCPv6 information-request. The lease time of the
272 smallest valid dhcp-range is sent. Thanks to Uwe Schindler
273 for suggesting this.
275 Make --listen-address higher priority than --except-interface
276 in all circumstances. Thanks to Thomas Hood for the bugreport.
278 Provide independent control over which interfaces get TFTP
279 service. If enable-tftp is given a list of interfaces, then TFTP
280 is provided on those. Without the list, the previous behaviour
281 (provide TFTP to the same interfaces we provide DHCP to)
282 is retained. Thanks to Lonnie Abelbeck for the suggestion.
284 Add --dhcp-relay config option. Many thanks to vtsl.net
285 for sponsoring this development.
287 Fix crash with empty tag: in --dhcp-range. Thanks to
288 Kaspar Schleiser for the bug report.
290 Add "baseline" and "bloatcheck" makefile targets, for
291 revealing size changes during development. Thanks to
292 Vladislav Grishenko for the patch.
294 Cope with DHCPv6 clients which send REQUESTs without
295 address options - treat them as SOLICIT with rapid commit.
297 Support identification of clients by MAC address in
298 DHCPv6. When using a relay, the relay must support RFC
299 6939 for this to work. It always works for directly
300 connected clients. Thanks to Vladislav Grishenko
301 for prompting this feature.
303 Remove the rule for constructed DHCP ranges that the local
304 address must be either the first or last address in the
305 range. This was originally to avoid SLAAC addresses, but
306 we now explicitly autoconfig and privacy addresses instead.
308 Update Polish translation. Thanks to Jan Psota.
310 Fix problem in DHCPv6 vendorclass/userclass matching
311 code. Thanks to Tanguy Bouzeloc for the patch.
313 Update Spanish transalation. Thanks to Vicente Soriano.
315 Add --ra-param option. Thanks to Vladislav Grishenko for
316 inspiration on this.
318 Add --add-subnet configuration, to tell upstream DNS
319 servers where the original client is. Thanks to DNSthingy
320 for sponsoring this feature.
322 Add --quiet-dhcp, --quiet-dhcp6 and --quiet-ra. Thanks to
323 Kevin Darbyshire-Bryant for the initial patch.
325 Allow A/AAAA records created by --interface-name to be the
326 target of --cname. Thanks to Hadmut Danisch for the
327 suggestion.
329 Avoid treating a --dhcp-host which has an IPv6 address
330 as eligable for use with DHCPv4 on the grounds that it has
331 no address, and vice-versa. Thanks to Yury Konovalov for
332 spotting the problem.
334 Do a better job caching dangling CNAMEs. Thanks to Yves
335 Dorfsman for spotting the problem.
338 version 2.66
339 Add the ability to act as an authoritative DNS
340 server. Dnsmasq can now answer queries from the wider 'net
341 with local data, as long as the correct NS records are set
342 up. Only local data is provided, to avoid creating an open
343 DNS relay. Zone transfer is supported, to allow secondary
344 servers to be configured.
346 Add "constructed DHCP ranges" for DHCPv6. This is intended
347 for IPv6 routers which get prefixes dynamically via prefix
348 delegation. With suitable configuration, stateful DHCPv6
349 and RA can happen automatically as prefixes are delegated
350 and then deprecated, without having to re-write the
351 dnsmasq configuration file or restart the daemon. Thanks to
352 Steven Barth for extensive testing and development work on
353 this idea.
355 Fix crash on startup on Solaris 11. Regression probably
356 introduced in 2.61. Thanks to Geoff Johnstone for the
357 patch.
359 Add code to make behaviour for TCP DNS requests that same
360 as for UDP requests, when a request arrives for an allowed
361 address, but via a banned interface. This change is only
362 active on Linux, since the relevant API is missing (AFAIK)
363 on other platforms. Many thanks to Tomas Hozza for
364 spotting the problem, and doing invaluable discovery of
365 the obscure and undocumented API required for the solution.
367 Don't send the default DHCP option advertising dnsmasq as
368 the local DNS server if dnsmasq is configured to not act
369 as DNS server, or it's configured to a non-standard port.
371 Add DNSMASQ_CIRCUIT_ID, DNSMASQ_SUBCRIBER_ID,
372 DNSMASQ_REMOTE_ID variables to the environment of the
373 lease-change script (and the corresponding Lua). These hold
374 information inserted into the DHCP request by a DHCP relay
375 agent. Thanks to Lakefield Communications for providing a
376 bounty for this addition.
378 Fixed crash, introduced in 2.64, whilst handling DHCPv6
379 information-requests with some common configurations.
380 Thanks to Robert M. Albrecht for the bug report and
381 chasing the problem.
383 Add --ipset option. Thanks to Jason A. Donenfeld for the
384 patch.
386 Don't erroneously reject some option names in --dhcp-match
387 options. Thanks to Benedikt Hochstrasser for the bug report.
389 Allow a trailing '*' wildcard in all interface-name
390 configurations. Thanks to Christian Parpart for the patch.
392 Handle the situation where libc headers define
393 SO_REUSEPORT, but the kernel in use doesn't, to cope with
394 the introduction of this option to Linux. Thanks to Rich
395 Felker for the bug report.
397 Update Polish translation. Thanks to Jan Psota.
399 Fix crash if the configured DHCP lease limit is
400 reached. Regression occurred in 2.61. Thanks to Tsachi for
401 the bug report.
403 Update the French translation. Thanks to Gildas le Nadan.
406 version 2.65
407 Fix regression which broke forwarding of queries sent via
408 TCP which are not for A and AAAA and which were directed to
409 non-default servers. Thanks to Niax for the bug report.
411 Fix failure to build with DHCP support excluded. Thanks to
412 Gustavo Zacarias for the patch.
414 Fix nasty regression in 2.64 which completely broke cacheing.
417 version 2.64
418 Handle DHCP FQDN options with all flag bits zero and
419 --dhcp-client-update set. Thanks to Bernd Krumbroeck for
420 spotting the problem.
422 Finesse the check for /etc/hosts names which conflict with
423 DHCP names. Previously a name/address pair in /etc/hosts
424 which didn't match the name/address of a DHCP lease would
425 generate a warning. Now that only happesn if there is not
426 also a match. This allows multiple addresses for a name in
427 /etc/hosts with one of them assigned via DHCP.
429 Fix broken vendor-option processing for BOOTP. Thanks to
430 Hans-Joachim Baader for the bug report.
432 Don't report spurious netlink errors, regression in
433 2.63. Thanks to Vladislav Grishenko for the patch.
435 Flag DHCP or DHCPv6 in starup logging. Thanks to
436 Vladislav Grishenko for the patch.
438 Add SetServersEx method in DBus interface. Thanks to Dan
439 Williams for the patch.
441 Add SetDomainServers method in DBus interface. Thanks to
442 Roy Marples for the patch.
444 Fix build with later Lua libraries. Thansk to Cristian
445 Rodriguez for the patch.
447 Add --max-cache-ttl option. Thanks to Dennis Kaarsemaker
448 for the patch.
450 Fix breakage of --host-record parsing, resulting in
451 infinte loop at startup. Regression in 2.63. Thanks to
452 Haim Gelfenbeyn for spotting this.
454 Set SO_REUSEADDRESS and SO_V6ONLY options on the DHCPv6
455 socket, this allows multiple instances of dnsmasq on a
456 single machine, in the same way as for DHCPv4. Thanks to
457 Gene Czarcinski and Vladislav Grishenko for work on this.
459 Fix DHCPv6 to do access control correctly when it's
460 configured with --listen-address. Thanks to
461 Gene Czarcinski for sorting this out.
463 Add a "wildcard" dhcp-range which works for any IPv6
464 subnet, --dhcp-range=::,static Useful for Stateless
465 DHCPv6. Thanks to Vladislav Grishenko for the patch.
467 Don't include lease-time in DHCPACK replies to DHCPINFORM
468 queries, since RFC-2131 says we shouldn't. Thanks to
469 Wouter Ibens for pointing this out.
471 Makefile tweak to do dependency checking on header files.
472 Thanks to Johan Peeters for the patch.
474 Check interface for outgoing unsolicited router
475 advertisements, rather than relying on interface address
476 configuration. Thanks to Gene Czarinski for the patch.
478 Handle better attempts to transmit on interfaces which are
479 still doing DAD, and specifically do not just transmit
480 without setting source address and interface, since this
481 can cause very puzzling effects when a router
482 advertisement goes astray. Thanks again to Gene Czarinski.
484 Get RA timers right when there is more than one
485 dhcp-range on a subnet.
488 version 2.63
489 Do duplicate dhcp-host address check in --test mode.
491 Check that tftp-root directories are accessible before
492 start-up. Thanks to Daniel Veillard for the initial patch.
494 Allow more than one --tfp-root flag. The per-interface
495 stuff is pointless without that.
497 Add --bind-dynamic. A hybrid mode between the default and
498 --bind-interfaces which copes with dynamically created
499 interfaces.
501 A couple of fixes to the build system for Android. Thanks
502 to Metin Kaya for the patches.
504 Remove the interface:<interface> argument in --dhcp-range, and
505 the interface argument to --enable-tftp. These were a
506 still-born attempt to allow automatic isolated
507 configuration by libvirt, but have never (to my knowledge)
508 been used, had very strange semantics, and have been
509 superceded by other mechanisms.
511 Fixed bug logging filenames when duplicate dhcp-host
512 addresses are found. Thanks to John Hanks for the patch.
514 Fix regression in 2.61 which broke caching of CNAME
515 chains. Thanks to Atul Gupta for the bug report.
517 Allow the target of a --cname flag to be another --cname.
519 Teach DHCPv6 about the RFC 4242 information-refresh-time
520 option, and add parsing if the minutes, hours and days
521 format for options. Thanks to Francois-Xavier Le Bail for
522 the suggestion.
524 Allow "w" (for week) as multiplier in lease times, as well
525 as seconds, minutes, hours and days. Álvaro Gámez Machado
526 spotted the ommission.
528 Update French translation. Thanks to Gildas Le Nadan.
530 Allow a DBus service name to be given with --enable-dbus
531 which overrides the default,
532 uk.org.thekelleys.dnsmasq. Thanks to Mathieu
533 Trudel-Lapierre for the patch.
535 Set the "prefix on-link" bit in Router
536 Advertisements. Thanks to Gui Iribarren for the patch.
539 version 2.62
540 Update German translation. Thanks to Conrad Kostecki.
542 Cope with router-solict packets wich don't have a valid
543 source address. Thanks to Vladislav Grishenko for the patch.
545 Fixed bug which caused missing periodic router
546 advertisements with some configurations. Thanks to
547 Vladislav Grishenko for the patch.
549 Fixed bug which broke DHCPv6/RA with prefix lengths
550 which are not divisible by 8. Thanks to Andre Coetzee
551 for spotting this.
553 Fix non-response to router-solicitations when
554 router-advertisement configured, but DHCPv6 not
555 configured. Thanks to Marien Zwart for the patch.
557 Add --dns-rr, to allow arbitrary DNS resource records.
559 Fixed bug which broke RA scheduling when an interface had
560 two addresses in the same network. Thanks to Jim Bos for
561 his help nailing this.
563 version 2.61
564 Re-write interface discovery code on *BSD to use
565 getifaddrs. This is more portable, more straightforward,
566 and allows us to find the prefix length for IPv6
567 addresses.
569 Add ra-names, ra-stateless and slaac keywords for DHCPv6.
570 Dnsmasq can now synthesise AAAA records for dual-stack
571 hosts which get IPv6 addresses via SLAAC. It is also now
572 possible to use SLAAC and stateless DHCPv6, and to
573 tell clients to use SLAAC addresses as well as DHCP ones.
574 Thanks to Dave Taht for help with this.
576 Add --dhcp-duid to allow DUID-EN uids to be used.
578 Explicity send DHCPv6 replies to the correct port, instead
579 of relying on clients to send requests with the correct
580 source address, since at least one client in the wild gets
581 this wrong. Thanks to Conrad Kostecki for help tracking
582 this down.
584 Send a preference value of 255 in DHCPv6 replies when
585 --dhcp-authoritative is in effect. This tells clients not
586 to wait around for other DHCP servers.
588 Better logging of DHCPv6 options.
590 Add --host-record. Thanks to Rob Zwissler for the
591 suggestion.
593 Invoke the DHCP script with action "tftp" when a TFTP file
594 transfer completes. The size of the file, address to which
595 it was sent and complete pathname are supplied. Note that
596 version 2.60 introduced some script incompatibilties
597 associated with DHCPv6, and this is a further change. To
598 be safe, scripts should ignore unknown actions, and if
599 not IPv6-aware, should exit if the environment
600 variable DNSMASQ_IAID is set. The use-case for this is
601 to track netboot/install. Suggestion from Shantanu
602 Gadgil.
604 Update contrib/port-forward/dnsmasq-portforward to reflect
605 the above.
607 Set the environment variable DNSMASQ_LOG_DHCP when running
608 the script id --log-dhcp is in effect, so that script can
609 taylor their logging verbosity. Suggestion from Malte
610 Forkel.
612 Arrange that addresses specified with --listen-address
613 work even if there is no interface carrying the
614 address. This is chiefly useful for IPv4 loopback
615 addresses, where any address in 127.0.0.0/8 is a valid
616 loopback address, but normally only 127.0.0.1 appears on
617 the lo interface. Thanks to Mathieu Trudel-Lapierre for
618 the idea and initial patch.
620 Fix crash, introduced in 2.60, when a DHCPINFORM is
621 received from a network which has no valid dhcp-range.
622 Thanks to Stephane Glondu for the bug report.
624 Add a new DHCP lease time keyword, "deprecated" for
625 --dhcp-range. This is only valid for IPv6, and sets the
626 preffered lease time for both DHCP and RA to zero. The
627 effect is that clients can continue to use the address
628 for existing connections, but new connections will use
629 other addresses, if they exist. This makes hitless
630 renumbering at least possible.
632 Fix bug in address6_available() which caused DHCPv6 lease
633 aquisition to fail if more than one dhcp-range in use.
635 Provide RDNSS and DNSSL data in router advertisements,
636 using the settings provided for DHCP options
637 option6:domain-search and option6:dns-server.
639 Tweak logo/favicon.ico to add some transparency. Thanks to
640 SamLT for work on this.
642 Don't cache data from non-recursive nameservers, since it
643 may erroneously look like a valid CNAME to a non-exitant
644 name. Thanks to Ben Winslow for finding this.
646 Call SO_BINDTODEVICE on the DHCP socket(s) when doing DHCP
647 on exactly one interface and --bind-interfaces is set. This
648 makes the OpenStack use-case of one dnsmasq per virtual
649 interface work. This is only available on Linux; it's not
650 supported on other platforms. Thanks to Vishvananda Ishaya
651 and the OpenStack team for the suggestion.
653 Updated French translation. Thanks to Gildas Le Nadan.
655 Give correct from-cache answers to explict CNAME queries.
656 Thanks to Rob Zwissler for spotting this.
658 Add --tftp-lowercase option. Thanks to Oliver Rath for the
659 patch.
661 Ensure that the DBus DhcpLeaseUpdated events are generated
662 when a lease goes through INIT_REBOOT state, even if the
663 dhcp-script is not in use. Thanks to Antoaneta-Ecaterina
664 Ene for the patch.
666 Fix failure of TFTP over IPv4 on OpenBSD platform. Thanks
667 to Brad Smith for spotting this.
670 version 2.60
671 Fix compilation problem in Mac OS X Lion. Thanks to Olaf
672 Flebbe for the patch.
674 Fix DHCP when using --listen-address with an IP address
675 which is not the primary address of an interface.
677 Add --dhcp-client-update option.
679 Add Lua integration. Dnsmasq can now execute a DHCP
680 lease-change script written in Lua. This needs to be
681 enabled at compile time by setting HAVE_LUASCRIPT in
682 src/config.h or running "make COPTS=-DHAVE_LUASCRIPT"
683 Thanks to Jan-Piet Mens for the idea and proof-of-concept
684 implementation.
686 Tidied src/config.h to distinguish between
687 platform-dependent compile-time options which are selected
688 automatically, and builder-selectable compile time
689 options. Document the latter better, and describe how to
690 set them from the make command line.
692 Tidied up IPPROTO_IP/SOL_IP (and IPv6 equivalent)
693 confusion. IPPROTO_IP works everywhere now.
695 Set TOS on DHCP sockets, this improves things on busy
696 wireless networks. Thanks to Dave Taht for the patch.
698 Determine VERSION automatically based on git magic:
699 release tags or hash values.
701 Improve start-up speed when reading large hosts files
702 containing many distinct addresses.
704 Fix problem if dnsmasq is started without the stdin,
705 stdout and stderr file descriptors open. This can manifest
706 itself as 100% CPU use. Thanks to Chris Moore for finding
707 this.
709 Fix shell-scripting bug in bld/pkg-wrapper. Thanks to
710 Mark Mitchell for the patch.
712 Allow the TFP server or boot server in --pxe-service, to
713 be a domain name instead of an IP address. This allows for
714 round-robin to multiple servers, in the same way as
715 --dhcp-boot. A good suggestion from Cristiano Cumer.
717 Support BUILDDIR variable in the Makefile. Allows builds
718 for multiple archs from the same source tree with eg.
719 make BUILDDIR=linux (relative to dnsmasq tree)
720 make BUILDDIR=/tmp/openbsd (absolute path)
721 If BUILDDIR is not set, compilation happens in the src
722 directory, as before. Suggestion from Mark Mitchell.
724 Support DHCPv6. Support is there for the sort of things
725 the existing v4 server does, including tags, options,
726 static addresses and relay support. Missing is prefix
727 delegation, which is probably not required in the dnsmasq
728 niche, and an easy way to accept prefix delegations from
729 an upstream DHCPv6 server, which is. Future plans include
730 support for DHCPv6 router option and MAC address option
731 (to make selecting clients by MAC address work like IPv4).
732 These will be added as the standards mature.
733 This code has been tested, but this is the first release,
734 so don't bet the farm on it just yet. Many thanks to all
735 testers who have got it this far.
737 Support IPv6 router advertisements. This is a
738 simple-minded implementation, aimed at providing the
739 vestigial RA needed to go alongside IPv6. Is picks up
740 configuration from the DHCPv6 conf, and should just need
741 enabling with --enable-ra.
743 Fix long-standing wrinkle with --localise-queries that
744 could result in wrong answers when DNS packets arrive
745 via an interface other than the expected one. Thanks to
746 Lorenzo Milesi and John Hanks for spotting this one.
748 Update French translation. Thanks to Gildas Le Nadan.
750 Update Polish translation. Thanks to Jan Psota.
753 version 2.59
754 Fix regression in 2.58 which caused failure to start up
755 with some combinations of dnsmasq config and IPv6 kernel
756 network config. Thanks to Brielle Bruns for the bug
757 report.
759 Improve dnsmasq's behaviour when network interfaces are
760 still doing duplicate address detection (DAD). Previously,
761 dnsmasq would wait up to 20 seconds at start-up for the
762 DAD state to terminate. This is broken for bridge
763 interfaces on recent Linux kernels, which don't start DAD
764 until the bridge comes up, and so can take arbitrary
765 time. The new behaviour lets dnsmasq poll for an arbitrary
766 time whilst providing service on other interfaces. Thanks
767 to Stephen Hemminger for pointing out the problem.
770 version 2.58
771 Provide a definition of the SA_SIZE macro where it's
772 missing. Fixes build failure on openBSD.
774 Don't include a zero terminator at the end of messages
775 sent to /dev/log when /dev/log is a datagram socket.
776 Thanks to Didier Rabound for spotting the problem.
778 Add --dhcp-sequential-ip flag, to force allocation of IP
779 addresses in ascending order. Note that the default
780 pseudo-random mode is in general better but some
781 server-deployment applications need this.
783 Fix problem where a server-id of 0.0.0.0 is sent to a
784 client when a dhcp-relay is in use if a client renews a
785 lease after dnsmasq restart and before any clients on the
786 subnet get a new lease. Thanks to Mike Ruiz for assistance
787 in chasing this one down.
789 Don't return NXDOMAIN to an AAAA query if we have CNAME
790 which points to an A record only: NODATA is the correct
791 reply in this case. Thanks to Tom Fernandes for spotting
792 the problem.
794 Relax the need to supply a netmask in --dhcp-range for
795 networks which use a DHCP relay. Whilst this is still
796 desireable, in the absence of a netmask dnsmasq will use
797 a default based on the class (A, B, or C) of the address.
798 This should at least remove a cause of mysterious failure
799 for people using RFC1918 addresses and relays.
801 Add support for Linux conntrack connection marking. If
802 enabled with --conntrack, the connection mark for incoming
803 DNS queries will be copied to the outgoing connections
804 used to answer those queries. This allows clever firewall
805 and accounting stuff. Only available if dnsmasq is
806 compiled with HAVE_CONNTRACK and adds a dependency on
807 libnetfilter-conntrack. Thanks to Ed Wildgoose for the
808 initial idea, testing and sponsorship of this function.
810 Provide a sane error message when someone attempts to
811 match a tag in --dhcp-host.
813 Tweak the behaviour of --domain-needed, to avoid problems
814 with recursive nameservers downstream of dnsmasq. The new
815 behaviour only stops A and AAAA queries, and returns
816 NODATA rather than NXDOMAIN replies.
818 Efficiency fix for very large DHCP configurations, thanks
819 to James Gartrell and Mike Ruiz for help with this.
821 Allow the TFTP-server address in --dhcp-boot to be a
822 domain-name which is looked up in /etc/hosts. This can
823 give multiple IP addresses which are used round-robin,
824 thus doing TFTP server load-balancing. Thanks to Sushil
825 Agrawal for the patch.
827 When two tagged dhcp-options for a particular option
828 number are both valid, use the one which is valid without
829 a tag from the dhcp-range. Allows overriding of the value
830 of a DHCP option for a particular host as well as
831 per-network values. So
832 --dhcp-range=set:interface1,......
833 --dhcp-host=set:myhost,.....
834 --dhcp-option=tag:interface1,option:nis-domain,"domain1"
835 --dhcp-option=tag:myhost,option:nis-domain,"domain2"
836 will set the NIS-domain to domain1 for hosts in the range, but
837 override that to domain2 for a particular host.
839 Fix bug which resulted in truncated files and timeouts for
840 some TFTP transfers. The bug only occurs with netascii
841 transfers and needs an unfortunate relationship between
842 file size, blocksize and the number of newlines in the
843 last block before it manifests itself. Many thanks to
844 Alkis Georgopoulos for spotting the problem and providing
845 a comprehensive test-case.
847 Fix regression in TFTP server on *BSD platforms introduced
848 in version 2.56, due to confusion with sockaddr
849 length. Many thanks to Loic Pefferkorn for finding this.
851 Support scope-ids in IPv6 addresses of nameservers from
852 /etc/resolv.conf and in --server options. Eg
853 nameserver fe80::202:a412:4512:7bbf%eth0 or
854 server=fe80::202:a412:4512:7bbf%eth0. Thanks to
855 Michael Stapelberg for the suggestion.
857 Update Polish translation, thanks to Jan Psota.
859 Update French translation. Thanks to Gildas Le Nadan.
862 version 2.57
863 Add patches to allow build under Android.
865 Provide our own header for the DNS protocol, rather than
866 relying on arpa/nameser.h. This has proved more or less
867 defective over the years and the final straw is that it's
868 effectively empty on Android.
870 Fix regression in 2.56 which caused hex constants in
871 configuration to be rejected if they contain the '*'
872 wildcard.
874 Correct wrong casts of arguments to ctype.h functions,
875 isdigit(), isxdigit() etc. Thanks to Matthias Andree for
876 spotting this.
878 Allow build with IDN support independently from i18n.
879 IDN support continues to be included automatically
880 when i18n is included.
881 'make COPTS=-DHAVE_IDN' is the magic incantation.
883 Modify check on extraneous command line junk (added in
884 2.56) so that it doesn't complain about extra _empty_
885 arguments. Otherwise this breaks libvirt.
888 version 2.56
889 Add a patch to allow dnsmasq to get interface names right in a
890 Solaris zone. Thanks to Dj Padzensky for this.
892 Improve data-type parsing heuristics so that
893 --dhcp-option=option:domain-search,.
894 treats the value as a string and not an IP address.
895 Thanks to Clemens Fischer for spotting that.
897 Add IPv6 support to the TFTP server. Many thanks to Jan
898 'RedBully' Seiffert for the patches.
900 Log DNS queries at level LOG_INFO, rather then
901 LOG_DEBUG. This makes things consistent with DHCP
902 logging. Thanks to Adam Pribyl for spotting the problem.
904 Ensure that dnsmasq terminates cleanly when using
905 --syslog-async even if it cannot make a connection to the
906 syslogd.
908 Add --add-mac option. This is to support currently
909 experimental DNS filtering facilities. Thanks to Benjamin
910 Petrin for the orignal patch.
912 Fix bug which meant that tags were ignored in dhcp-range
913 configuration specifying PXE-proxy service. Thanks to
914 Cristiano Cumer for spotting this.
916 Raise an error if there is extra junk, not part of an
917 option, on the command line.
919 Flag a couple of log messages in cache.c as coming from
920 the DHCP subsystem. Thanks to Olaf Westrik for the patch.
922 Omit timestamps from logs when a) logging to stderr and
923 b) --keep-in-forground is set. The logging facility on the
924 other end of stderr can be assumned to supply them. Thanks
925 to John Hallam for the patch.
927 Don't complain about strings longer than 255 characters in
928 --txt-record, just split the long strings into 255
929 character chunks instead.
931 Fix crash on double-free. This bug can only happen when
932 dhcp-script is in use and then only in rare circumstances
933 triggered by high DHCP transaction rate and a slow
934 script. Thanks to Ferenc Wagner for finding the problem.
936 Only log that a file has been sent by TFTP after the
937 transfer has completed succesfully.
939 A good suggestion from Ferenc Wagner: extend
940 the --domain option to allow this sort of thing:
941 --domain=thekelleys.org.uk,192.168.0.0/24,local
942 which automatically creates
943 --local=/thekelleys.org.uk/
944 --local=/0.168.192.in-addr.arpa/
946 Tighten up syntax checking of hex contants in the config
947 file. Thanks to Fred Damen for spotting this.
949 Add dnsmasq logo/icon, contributed by Justin Swift. Many
950 thanks for that.
952 Never cache DNS replies which have the 'cd' bit set, or
953 which result from queries forwarded with the 'cd' bit
954 set. The 'cd' bit instructs a DNSSEC validating server
955 upstream to ignore signature failures and return replies
956 anyway. Without this change it's possible to pollute the
957 dnsmasq cache with bad data by making a query with the
958 'cd' bit set and subsequent queries would return this data
959 without its being marked as suspect. Thanks to Anders
960 Kaseorg for pointing out this problem.
962 Add --proxy-dnssec flag, for compliance with RFC
963 4035. Dnsmasq will now clear the 'ad' bit in answers returned
964 from upstream validating nameservers unless this option is
965 set.
967 Allow a filename of "-" for --conf-file to read
968 stdin. Suggestion from Timothy Redaelli.
970 Rotate the order of SRV records in replies, to provide
971 round-robin load balancing when all the priorities are
972 equal. Thanks to Peter McKinney for the suggestion.
974 Edit
975 contrib/MacOSX-launchd/uk.org.thekelleys.dnsmasq.plist
976 so that it doesn't log all queries to a file by
977 default. Thanks again to Peter McKinney.
979 By default, setting an IPv4 address for a domain but not
980 an IPv6 address causes dnsmasq to return
981 an NODATA reply for IPv6 (or vice-versa). So
982 --address=/google.com/1.2.3.4 stops IPv6 queries for
983 *google.com from being forwarded. Make it possible to
984 override this behaviour by defining the sematics if the
985 same domain appears in both --server and --address.
986 In that case, the --address has priority for the address
987 family in which is appears, but the --server has priority
988 of the address family which doesn't appear in --adddress
989 So:
990 --address=/google.com/1.2.3.4
991 --server=/google.com/#
992 will return 1.2.3.4 for IPv4 queries for *.google.com but
993 forward IPv6 queries to the normal upstream nameserver.
994 Similarly when setting an IPv6 address
995 only this will allow forwarding of IPv4 queries. Thanks to
996 William for pointing out the need for this.
998 Allow more than one --dhcp-optsfile and --dhcp-hostsfile
999 and make them understand directories as arguments in the
1000 same way as --addn-hosts. Suggestion from John Hanks.
1002 Ignore rebinding requests for leases we don't know
1003 about. Rebind is broadcast, so we might get to overhear a
1004 request meant for another DHCP server. NAKing this is
1005 wrong. Thanks to Brad D'Hondt for assistance with this.
1007 Fix cosmetic bug which produced strange output when
1008 dumping cache statistics with some configurations. Thanks
1009 to Fedor Kozhevnikov for spotting this.
1012 version 2.55
1013 Fix crash when /etc/ethers is in use. Thanks to
1014 Gianluigi Tiesi for finding this.
1016 Fix crash in netlink_multicast(). Thanks to Arno Wald for
1017 finding this one.
1019 Allow the empty domain "." in dhcp domain-search (119)
1020 options.
1023 version 2.54
1024 There is no version 2.54 to avoid confusion with 2.53,
1025 which incorrectly identifies itself as 2.54.
1028 version 2.53
1029 Fix failure to compile on Debian/kFreeBSD. Thanks to
1030 Axel Beckert and Petr Salinger.
1032 Fix code to avoid scary strict-aliasing warnings
1033 generated by gcc 4.4.
1035 Added FAQ entry warning about DHCP failures with Vista
1036 when firewalls block 255.255.255.255.
1038 Fixed bug which caused bad things to happen if a
1039 resolv.conf file which exists is subsequently removed.
1040 Thanks to Nikolai Saoukh for the patch.
1042 Rationalised the DHCP tag system. Every configuration item
1043 which can set a tag does so by adding "set:<tag>" and
1044 every configuration item which is conditional on a tag is
1045 made so by "tag:<tag>". The NOT operator changes to '!',
1046 which is a bit more intuitive too. Dhcp-host directives
1047 can set more than one tag now. The old '#' NOT,
1048 "net:" prefix and no-prefixes are still honoured, so
1049 no existing config file needs to be changed, but
1050 the documentation and new-style config files should be
1051 much less confusing.
1053 Added --tag-if to allow boolean operations on tags.
1054 This allows complicated logic to be clearer and more
1055 general. A great suggestion from Richard Voigt.
1057 Add broadcast/unicast information to DHCP logging.
1059 Allow --dhcp-broadcast to be unconditional.
1061 Fixed incorrect behaviour with NOT <tag> conditionals in
1062 dhcp-options. Thanks to Max Turkewitz for assistance
1063 finding this.
1065 If we send vendor-class encapsulated options based on the
1066 vendor-class supplied by the client, and no explicit
1067 vendor-class option is given, echo back the vendor-class
1068 from the client.
1070 Fix bug which stopped dnsmasq from matching both a
1071 circuitid and a remoteid. Thanks to Ignacio Bravo for
1072 finding this.
1074 Add --dhcp-proxy, which makes it possible to configure
1075 dnsmasq to use a DHCP relay agent as a full proxy, with
1076 all DHCP messages passing through the proxy. This is
1077 useful if the relay adds extra information to the packets
1078 it forwards, but cannot be configured with the RFC 5107
1079 server-override option.
1081 Added interface:<iface name> part to dhcp-range. The
1082 semantics of this are very odd at first sight, but it
1083 allows a single line of the form
1084 dhcp-range=interface:virt0,192.168.0.4,192.168.0.200
1085 to be added to dnsmasq configuration which then supplies
1086 DHCP and DNS services to that interface, without affecting
1087 what services are supplied to other interfaces and
1088 irrespective of the existance or lack of
1089 interface=<interface>
1090 lines elsewhere in the dnsmasq configuration. The idea is
1091 that such a line can be added automatically by libvirt
1092 or equivalent systems, without disturbing any manual
1093 configuration.
1095 Similarly to the above, allow --enable-tftp=<interface>
1097 Allow a TFTP root to be set separately for requests via
1098 different interfaces, --tftp-root=<path>,<interface>
1100 Correctly handle and log clashes between CNAMES and
1101 DNS names being given to DHCP leases. This fixes a bug
1102 which caused nonsense IP addresses to be logged. Thanks to
1103 Sergei Zhirikov for finding and analysing the problem.
1105 Tweak flush_log so as to avoid leaving the log
1106 file in non-blocking mode. O_NONBLOCK is a property of the
1107 file, not the process/descriptor.
1109 Fix contrib/Solaris10/create_package
1110 (/usr/man -> /usr/share/man) Thanks to Vita Batrla.
1112 Fix a problem where, if a client got a lease, then went
1113 to another subnet and got another lease, then moved back,
1114 it couldn't resume the old lease, but would instead get
1115 a new address. Thanks to Leonardo Rodrigues for spotting
1116 this and testing the fix.
1118 Fix weird bug which sometimes omitted certain characters
1119 from the start of quoted strings in dhcp-options. Thanks
1120 to Dayton Turner for spotting the problem.
1122 Add facility to redirect some domains to the standard
1123 upstream servers: this allows something like
1124 --server=/google.com/1.2.3.4 --server=/www.google.com/#
1125 which will send queries for *.google.com to 1.2.3.4,
1126 except *www.google.com which will be forwarded as usual.
1127 Thanks to AJ Weber for prompting this addition.
1129 Improve the hash-algorithm used to generate IP addresses
1130 from MAC addresses during initial DHCP address
1131 allocation. This improves performance when large numbers
1132 of hosts with similar MAC addresses all try and get an IP
1133 address at the same time. Thanks to Paul Smith for his
1134 work on this.
1136 Tweak DHCP code so that --bridge-interface can be used to
1137 select which IP alias of an interface should be used for
1138 DHCP purposes on Linux. If eth0 has an alias eth0:dhcp
1139 then adding --bridge-interface=eth0:dhcp,eth0 will use
1140 the address of eth0:dhcp to determine the correct subnet
1141 for DHCP address allocation. Thanks to Pawel Golaszewski
1142 for prompting this and Eric Cooper for further testing.
1144 Add --dhcp-generate-names. Suggestion by Ferenc Wagner.
1146 Tweak DNS server selection algorithm when there is more
1147 than one server available for a domain, eg.
1148 --server=/mydomain/1.1.1.1
1149 --server=/mydomain/2.2.2.2
1150 Thanks to Alberto Cuesta-Canada for spotting a weakness
1151 here.
1153 Add --max-ttl. Thanks to Fredrik Ringertz for the patch.
1155 Allow --log-facility=- to force all logging to
1156 stderr. Suggestion from Clemens Fischer.
1158 Fix regression which caused configuration like
1159 --address=/.domain.com/1.2.3.4 to be rejected. The dot to the
1160 left of the domain has been implied and not required for a
1161 long time, but it should be accepted for backward
1162 compatibility. Thanks to Andrew Burcin for spotting this.
1164 Add --rebind-domain-ok and --rebind-localhost-ok.
1165 Suggestion from Clemens Fischer.
1167 Log replies to queries of type TXT, when --log-queries
1168 is set.
1170 Fix compiler warnings when compiled with -DNO_DHCP. Thanks
1171 to Shantanu Gadgil for the patch.
1173 Updated French translation. Thanks to Gildas Le Nadan.
1175 Updated Polish translation. Thanks to Jan Psota.
1177 Updated German translation. Thanks to Matthias Andree.
1179 Added contrib/static-arp, thanks to Darren Hoo.
1181 Fix corruption of the domain when a name from /etc/hosts
1182 overrides one supplied by a DHCP client. Thanks to Fedor
1183 Kozhevnikov for spotting the problem.
1185 Updated Spanish translation. Thanks to Chris Chatham.
1188 version 2.52
1189 Work around a Linux kernel bug which insists that the
1190 length of the option passed to setsockopt must be at least
1191 sizeof(int) bytes, even if we're calling SO_BINDTODEVICE
1192 and the device name is "lo". Note that this is fixed
1193 in kernel 2.6.31, but the workaround is harmless and
1194 allows earlier kernels to be used. Also fix dnsmasq
1195 bug which reported the wrong address when this failed.
1196 Thanks to Fedor for finding this.
1198 The API for IPv6 PKTINFO changed around Linux kernel
1199 2.6.14. Workaround the case where dnsmasq is compiled
1200 against newer headers, but then run on an old kernel:
1201 necessary for some *WRT distros.
1203 Re-read the set of network interfaces when re-loading
1204 /etc/resolv.conf if --bind-interfaces is not set. This
1205 handles the case that loopback interfaces do not exist
1206 when dnsmasq is first started.
1208 Tweak the PXE code to support port 4011. This should
1209 reduce broadcasts and make things more reliable when other
1210 servers are around. It also improves inter-operability
1211 with certain clients.
1213 Make a pxe-service configuration with no filename or boot
1214 service type legal: this does a local boot. eg.
1215 pxe-service=x86PC, "Local boot"
1217 Be more conservative in detecting "A for A"
1218 queries. Dnsmasq checks if the name in a type=A query looks
1219 like a dotted-quad IP address and answers the query itself
1220 if so, rather than forwarding it. Previously dnsmasq
1221 relied in the library function inet_addr() to convert
1222 addresses, and that will accept some things which are
1223 confusing in this context, like 1.2.3 or even just
1224 1234. Now we only do A for A processing for four decimal
1225 numbers delimited by dots.
1227 A couple of tweaks to fix compilation on Solaris. Thanks
1228 to Joel Macklow for help with this.
1230 Another Solaris compilation tweak, needed for Solaris
1231 2009.06. Thanks to Lee Essen for that.
1233 Added extract packaging stuff from Lee Essen to
1234 contrib/Solaris10.
1236 Increased the default limit on number of leases to 1000
1237 (from 150). This is mainly a defence against DoS attacks,
1238 and for the average "one for two class C networks"
1239 installation, IP address exhaustion does that just as
1240 well. Making the limit greater than the number of IP
1241 addresses available in such an installation removes a
1242 surprise which otherwise can catch people out.
1244 Removed extraneous trailing space in the value of the
1245 DNSMASQ_TIME_REMAINING DNSMASQ_LEASE_LENGTH and
1246 DNSMASQ_LEASE_EXPIRES environment variables. Thanks to
1247 Gildas Le Nadan for spotting this.
1249 Provide the network-id tags for a DHCP transaction to
1250 the lease-change script in the environment variable
1251 DNSMASQ_TAGS. A good suggestion from Gildas Le Nadan.
1253 Add support for RFC3925 "Vendor-Identifying Vendor
1254 Options". The syntax looks like this:
1255 --dhcp-option=vi-encap:<enterprise number>, .........
1257 Add support to --dhcp-match to allow matching against
1258 RFC3925 "Vendor-Identifying Vendor Classes". The syntax
1259 looks like this:
1260 --dhcp-match=tag,vi-encap<enterprise number>, <value>
1262 Add some application specific code to assist in
1263 implementing the Broadband forum TR069 CPE-WAN
1264 specification. The details are in contrib/CPE-WAN/README
1266 Increase the default DNS packet size limit to 4096, as
1267 recommended by RFC5625 section 4.4.3. This can be
1268 reconfigured using --edns-packet-max if needed. Thanks to
1269 Francis Dupont for pointing this out.
1271 Rewrite query-ids even for TSIG signed packets, since
1272 this is allowed by RFC5625 section 4.5.
1274 Use getopt_long by default on OS X. It has been supported
1275 since version 10.3.0. Thanks to Arek Dreyer for spotting
1276 this.
1278 Added up-to-date startup configuration for MacOSX/launchd
1279 in contrib/MacOSX-launchd. Thanks to Arek Dreyer for
1280 providing this.
1282 Fix link error when including Dbus but excluding DHCP.
1283 Thanks to Oschtan for the bug report.
1285 Updated French translation. Thanks to Gildas Le Nadan.
1287 Updated Polish translation. Thanks to Jan Psota.
1289 Updated Spanish translation. Thanks to Chris Chatham.
1291 Fixed confusion about domains, when looking up DHCP hosts
1292 in /etc/hosts. This could cause spurious "Ignoring
1293 domain..." messages. Thanks to Fedor Kozhevnikov for
1294 finding and analysing the problem.
1297 version 2.51
1298 Add support for internationalised DNS. Non-ASCII characters
1299 in domain names found in /etc/hosts, /etc/ethers and
1300 /etc/dnsmasq.conf will be correctly handled by translation to
1301 punycode, as specified in RFC3490. This function is only
1302 available if dnsmasq is compiled with internationalisation
1303 support, and adds a dependency on GNU libidn. Without i18n
1304 support, dnsmasq continues to be compilable with just
1305 standard tools. Thanks to Yves Dorfsman for the
1306 suggestion.
1308 Add two more environment variables for lease-change scripts:
1309 First, DNSMASQ_SUPPLIED_HOSTNAME; this is set to the hostname
1310 supplied by a client, even if the actual hostname used is
1311 over-ridden by dhcp-host or dhcp-ignore-names directives.
1312 Also DNSMASQ_RELAY_ADDRESS which gives the address of
1313 a DHCP relay, if used.
1314 Suggestions from Michael Rack.
1316 Fix regression which broke echo of relay-agent
1317 options. Thanks to Michael Rack for spotting this.
1319 Don't treat option 67 as being interchangeable with
1320 dhcp-boot parameters if it's specified as
1321 dhcp-option-force.
1323 Make the code to call scripts on lease-change compile-time
1324 optional. It can be switched off by editing src/config.h
1325 or building with "make COPTS=-DNO_SCRIPT".
1327 Make the TFTP server cope with filenames from Windows/DOS
1328 which use '\' as pathname separator. Thanks to Ralf for
1329 the patch.
1331 Updated Polish translation. Thanks to Jan Psota.
1333 Warn if an IP address is duplicated in /etc/ethers. Thanks
1334 to Felix Schwarz for pointing this out.
1336 Teach --conf-dir to take an option list of file suffices
1337 which will be ignored when scanning the directory. Useful
1338 for backup files etc. Thanks to Helmut Hullen for the
1339 suggestion.
1341 Add new DHCP option named tftpserver-address, which
1342 corresponds to the third argument of dhcp-boot. This
1343 allows the complete functionality of dhcp-boot to be
1344 replicated with dhcp-option. Useful when using
1345 dhcp-optsfile.
1347 Test which upstream nameserver to use every 10 seconds
1348 or 50 queries and not just when a query times out and
1349 is retried. This should improve performance when there
1350 is a slow nameserver in the list. Thanks to Joe for the
1351 suggestion.
1353 Don't do any PXE processing, even for clients with the
1354 correct vendorclass, unless at least one pxe-prompt or
1355 pxe-service option is given. This stops dnsmasq
1356 interfering with proxy PXE subsystems when it is just
1357 the DHCP server. Thanks to Spencer Clark for spotting this.
1359 Limit the blocksize used for TFTP transfers to a value
1360 which avoids packet fragmentation, based on the MTU of the
1361 local interface. Many netboot ROMs can't cope with
1362 fragmented packets.
1364 Honour dhcp-ignore configuration for PXE and proxy-PXE
1365 requests. Thanks to Niels Basjes for the bug report.
1367 Updated French translation. Thanks to Gildas Le Nadan.
1370 version 2.50
1371 Fix security problem which allowed any host permitted to
1372 do TFTP to possibly compromise dnsmasq by remote buffer
1373 overflow when TFTP enabled. Thanks to Core Security
1374 Technologies and Iván Arce, Pablo Hernán Jorge, Alejandro
1375 Pablo Rodriguez, Martín Coco, Alberto Soliño Testa and
1376 Pablo Annetta. This problem has Bugtraq id: 36121
1377 and CVE: 2009-2957
1379 Fix a problem which allowed a malicious TFTP client to
1380 crash dnsmasq. Thanks to Steve Grubb at Red Hat for
1381 spotting this. This problem has Bugtraq id: 36120 and
1382 CVE: 2009-2958
1385 version 2.49
1386 Fix regression in 2.48 which disables the lease-change
1387 script. Thanks to Jose Luis Duran for spotting this.
1389 Log TFTP "file not found" errors. These were not logged,
1390 since a normal PXELinux boot generates many of them, but
1391 the lack of the messages seems to be more confusing than
1392 routinely seeing them when there is no real error.
1394 Update Spanish translation. Thanks to Chris Chatham.
1397 version 2.48
1398 Archived the extensive, backwards, changelog to
1399 CHANGELOG.archive. The current changelog now runs from
1400 version 2.43 and runs conventionally.
1402 Fixed bug which broke binding of servers to physical
1403 interfaces when interface names were longer than four
1404 characters. Thanks to MURASE Katsunori for the patch.
1406 Fixed netlink code to check that messages come from the
1407 correct source, and not another userspace process. Thanks
1408 to Steve Grubb for the patch.
1410 Maintainability drive: removed bug and missing feature
1411 workarounds for some old platforms. Solaris 9, OpenBSD
1412 older than 4.1, Glibc older than 2.2, Linux 2.2.x and
1413 DBus older than 1.1.x are no longer supported.
1415 Don't read included configuration files more than once:
1416 allows complex configuration structures without problems.
1418 Mark log messages from the various subsystems in dnsmasq:
1419 messages from the DHCP subsystem now have the ident string
1420 "dnsmasq-dhcp" and messages from TFTP have ident
1421 "dnsmasq-tftp". Thanks to Olaf Westrik for the patch.
1423 Fix possible infinite DHCP protocol loop when an IP
1424 address nailed to a hostname (not a MAC address) and a
1425 host sometimes provides the name, sometimes not.
1427 Allow --addn-hosts to take a directory: all the files
1428 in the directory are read. Thanks to Phil Cornelius for
1429 the suggestion.
1431 Support --bridge-interface on all platforms, not just BSD.
1433 Added support for advanced PXE functions. It's now
1434 possible to define a prompt and menu options which will
1435 be displayed when a client PXE boots. It's also possible to
1436 hand-off booting to other boot servers. Proxy-DHCP, where
1437 dnsmasq just supplies the PXE information and another DHCP
1438 server does address allocation, is also allowed. See the
1439 --pxe-prompt and --pxe-service keywords. Thanks to
1440 Alkis Georgopoulos for the suggestion and Guilherme Moro
1441 and Michael Brown for assistance.
1443 Improvements to DHCP logging. Thanks to Tom Metro for
1444 useful suggestions.
1446 Add ability to build dnsmasq without DHCP support. To do
1447 this, edit src/config.h or build with
1448 "make COPTS=-DNO_DHCP". Thanks to Mahavir Jain for the patch.
1450 Added --test command-line switch - syntax check
1451 configuration files only.
1453 Updated French translation. Thanks to Gildas Le Nadan.
1456 version 2.47
1457 Updated French translation. Thanks to Gildas Le Nadan.
1459 Fixed interface enumeration code to work on NetBSD
1460 5.0. Thanks to Roy Marples for the patch.
1462 Updated config.h to use the same location for the lease
1463 file on NetBSD as the other *BSD variants. Also allow
1464 LEASEFILE and CONFFILE symbols to be overriden in CFLAGS.
1466 Handle duplicate address detection on IPv6 more
1467 intelligently. In IPv6, an interface can have an address
1468 which is not usable, because it is still undergoing DAD
1469 (such addresses are marked "tentative"). Attempting to
1470 bind to an address in this state returns an error,
1471 EADDRNOTAVAIL. Previously, on getting such an error,
1472 dnsmasq would silently abandon the address, and never
1473 listen on it. Now, it retries once per second for 20
1474 seconds before generating a fatal error. 20 seconds should
1475 be long enough for any DAD process to complete, but can be
1476 adjusted in src/config.h if necessary. Thanks to Martin
1477 Krafft for the bug report.
1479 Add DBus introspection. Patch from Jeremy Laine.
1481 Update Dbus configuration file. Patch from Colin Walters.
1482 Fix for this bug:
1483 http://bugs.freedesktop.org/show_bug.cgi?id=18961
1485 Support arbitrarily encapsulated DHCP options, suggestion
1486 and initial patch from Samium Gromoff. This is useful for
1487 (eg) gPXE, which expect all its private options to be
1488 encapsulated inside a single option 175. So, eg,
1490 dhcp-option = encap:175, 190, "iscsi-client0"
1491 dhcp-option = encap:175, 191, "iscsi-client0-secret"
1493 will provide iSCSI parameters to gPXE.
1495 Enhance --dhcp-match to allow testing of the contents of a
1496 client-sent option, as well as its presence. This
1497 application in mind for this is RFC 4578
1498 client-architecture specifiers, but it's generally useful.
1499 Joey Korkames suggested the enhancement.
1501 Move from using the IP_XMIT_IF ioctl to IP_BOUND_IF on
1502 OpenSolaris. Thanks to Bastian Machek for the heads-up.
1504 No longer complain about blank lines in
1505 /etc/ethers. Thanks to Jon Nelson for the patch.
1507 Fix binding of servers to physical devices, eg
1508 --server=/domain/1.2.3.4@eth0 which was broken from 2.43
1509 onwards unless --query-port=0 set. Thanks to Peter Naulls
1510 for the bug report.
1512 Reply to DHCPINFORM requests even when the supplied ciaddr
1513 doesn't fall in any dhcp-range. In this case it's not
1514 possible to supply a complete configuration, but
1515 individually-configured options (eg PAC) may be useful.
1517 Allow the source address of an alias to be a range:
1518 --alias=192.168.0.0,10.0.0.0,255.255.255.0 maps the whole
1519 subnet 192.168.0.0->192.168.0.255 to 10.0.0.0->10.0.0.255,
1520 as before.
1521 --alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
1522 maps only the 192.168.0.10->192.168.0.40 region. Thanks to
1523 Ib Uhrskov for the suggestion.
1525 Don't dynamically allocate DHCP addresses which may break
1526 Windows. Addresses which end in .255 or .0 are broken in
1527 Windows even when using supernetting.
1528 --dhcp-range=192.168.0.1,192.168.1.254,255,255,254.0 means
1529 192.168.0.255 is a valid IP address, but not for Windows.
1530 See Microsoft KB281579. We therefore no longer allocate
1531 these addresses to avoid hard-to-diagnose problems.
1533 Update Polish translation. Thanks to Jan Psota.
1535 Delete the PID-file when dnsmasq shuts down. Note that by
1536 this time, dnsmasq is normally not running as root, so
1537 this will fail if the PID-file is stored in a root-owned
1538 directory; such failure is silently ignored. To take
1539 advantage of this feature, the PID-file must be stored in a
1540 directory owned and write-able by the user running
1541 dnsmasq.
1544 version 2.46
1545 Allow --bootp-dynamic to take a netid tag, so that it may
1546 be selectively enabled. Thanks to Olaf Westrik for the
1547 suggestion.
1549 Remove ISC-leasefile reading code. This has been
1550 deprecated for a long time, and last time I removed it, it
1551 ended up going back by request of one user. This time,
1552 it's gone for good; otherwise it would need to be
1553 re-worked to support multiple domains (see below).
1555 Support DHCP clients in multiple DNS domains. This is a
1556 long-standing request. Clients are assigned to a domain
1557 based in their IP address.
1559 Add --dhcp-fqdn flag, which changes behaviour if DNS names
1560 assigned to DHCP clients. When this is set, there must be
1561 a domain associated with each client, and only
1562 fully-qualified domain names are added to the DNS. The
1563 advantage is that the only the FQDN needs to be unique,
1564 so that two or more DHCP clients can share a hostname, as
1565 long as they are in different domains.
1567 Set environment variable DNSMASQ_DOMAIN when invoking
1568 lease-change script. This may be useful information to
1569 have now that it's variable.
1571 Tighten up data-checking code for DNS packet
1572 handling. Thanks to Steve Dodd who found certain illegal
1573 packets which could crash dnsmasq. No memory overwrite was
1574 possible, so this is not a security issue beyond the DoS
1575 potential.
1577 Update example config dhcp option 47, the previous
1578 suggestion generated an illegal, zero-length,
1579 option. Thanks to Matthias Andree for finding this.
1581 Rewrite hosts-file reading code to remove the limit of
1582 1024 characters per line. John C Meuser found this.
1584 Create a net-id tag with the name of the interface on
1585 which the DHCP request was received.
1587 Fixed minor memory leak in DBus code, thanks to Jeremy
1588 Laine for the patch.
1590 Emit DBus signals as the DHCP lease database
1591 changes. Thanks to Jeremy Laine for the patch.
1593 Allow for more that one MAC address in a dhcp-host
1594 line. This configuration tells dnsmasq that it's OK to
1595 abandon a DHCP lease of the fixed address to one MAC
1596 address, if another MAC address in the dhcp-host statement
1597 asks for an address. This is useful to give a fixed
1598 address to a host which has two network interfaces
1599 (say, a laptop with wired and wireless interfaces.)
1600 It's very important to ensure that only one interface
1601 at a time is up, since dnsmasq abandons the first lease
1602 and re-uses the address before the leased time has
1603 elapsed. John Gray suggested this.
1605 Tweak the response to a DHCP request packet with a wrong
1606 server-id when --dhcp-authoritative is set; dnsmasq now
1607 returns a DHCPNAK, rather than silently ignoring the
1608 packet. Thanks to Chris Marget for spotting this
1609 improvement.
1611 Add --cname option. This provides a limited alias
1612 function, usable for DHCP names. Thanks to AJ Weber for
1613 suggestions on this.
1615 Updated contrib/webmin with latest version from Neil
1616 Fisher.
1618 Updated Polish translation. Thanks to Jan Psota.
1620 Correct the text names for DHCP options 64 and 65 to be
1621 "nis+-domain" and "nis+-servers".
1623 Updated Spanish translation. Thanks to Chris Chatham.
1625 Force re-reading of /etc/resolv.conf when an "interface
1626 up" event occurs.
1629 version 2.45
1630 Fix total DNS failure in release 2.44 unless --min-port
1631 specified. Thanks to Steven Barth and Grant Coady for
1632 bugreport. Also reject out-of-range port spec, which could
1633 break things too: suggestion from Gilles Espinasse.
1636 version 2.44
1637 Fix crash when unknown client attempts to renew a DHCP
1638 lease, problem introduced in version 2.43. Thanks to
1639 Carlos Carvalho for help chasing this down.
1641 Fix potential crash when a host which doesn't have a lease
1642 does DHCPINFORM. Again introduced in 2.43. This bug has
1643 never been reported in the wild.
1645 Fix crash in netlink code introduced in 2.43. Thanks to
1646 Jean Wolter for finding this.
1648 Change implementation of min_port to work even if min-port
1649 is large.
1651 Patch to enable compilation of latest Mac OS X. Thanks to
1652 David Gilman.
1654 Update Spanish translation. Thanks to Christopher Chatham.
1657 version 2.43
1658 Updated Polish translation. Thanks to Jan Psota.
1660 Flag errors when configuration options are repeated
1661 illegally.
1663 Further tweaks for GNU/kFreeBSD
1665 Add --no-wrap to msgmerge call - provides nicer .po file
1666 format.
1668 Honour lease-time spec in dhcp-host lines even for
1669 BOOTP. The user is assumed to known what they are doing in
1670 this case. (Hosts without the time spec still get infinite
1671 leases for BOOTP, over-riding the default in the
1672 dhcp-range.) Thanks to Peter Katzmann for uncovering this.
1674 Fix problem matching relay-agent ids. Thanks to Michael
1675 Rack for the bug report.
1677 Add --naptr-record option. Suggestion from Johan
1678 Bergquist.
1680 Implement RFC 5107 server-id-override DHCP relay agent
1681 option.
1683 Apply patches from Stefan Kruger for compilation on
1684 Solaris 10 under Sun studio.
1686 Yet more tweaking of Linux capability code, to suppress
1687 pointless wingeing from kernel 2.6.25 and above.
1689 Improve error checking during startup. Previously, some
1690 errors which occurred during startup would be worked
1691 around, with dnsmasq still starting up. Some were logged,
1692 some silent. Now, they all cause a fatal error and dnsmasq
1693 terminates with a non-zero exit code. The errors are those
1694 associated with changing uid and gid, setting process
1695 capabilities and writing the pidfile. Thanks to Uwe
1696 Gansert and the Suse security team for pointing out
1697 this improvement, and Bill Reimers for good implementation
1698 suggestions.
1700 Provide NO_LARGEFILE compile option to switch off largefile
1701 support when compiling against versions of uclibc which
1702 don't support it. Thanks to Stephane Billiart for the patch.
1704 Implement random source ports for interactions with
1705 upstream nameservers. New spoofing attacks have been found
1706 against nameservers which do not do this, though it is not
1707 clear if dnsmasq is vulnerable, since to doesn't implement
1708 recursion. By default dnsmasq will now use a different
1709 source port (and socket) for each query it sends
1710 upstream. This behaviour can suppressed using the
1711 --query-port option, and the old default behaviour
1712 restored using --query-port=0. Explicit source-port
1713 specifications in --server configs are still honoured.
1715 Replace the random number generator, for better
1716 security. On most BSD systems, dnsmasq uses the
1717 arc4random() RNG, which is secure, but on other platforms,
1718 it relied on the C-library RNG, which may be
1719 guessable and therefore allow spoofing. This release
1720 replaces the libc RNG with the SURF RNG, from Daniel
1721 J. Berstein's DJBDNS package.
1723 Don't attempt to change user or group or set capabilities
1724 if dnsmasq is run as a non-root user. Without this, the
1725 change from soft to hard errors when these fail causes
1726 problems for non-root daemons listening on high
1727 ports. Thanks to Patrick McLean for spotting this.
1729 Updated French translation. Thanks to Gildas Le Nadan.
1732 version 2.42
1733 The changelog for version 2.42 and earlier is
1734 available in CHANGELOG.archive.