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1 version 2.73
2 Fix crash at startup when an empty suffix is supplied to
3 --conf-dir, also trivial memory leak. Thanks to
4 Tomas Hozza for spotting this.
6 Remove floor of 4096 on advertised EDNS0 packet size when
7 DNSSEC in use, the original rationale for this has long gone.
8 Thanks to Anders Kaseorg for spotting this.
10 Use inotify for checking on updates to /etc/resolv.conf and
11 friends under Linux. This fixes race conditions when the files are
12 updated rapidly and saves CPU by noy polling. To build
13 a binary that runs on old Linux kernels without inotify,
14 use make COPTS=-DNO_INOTIFY
16 Fix breakage of --domain=<domain>,<subnet>,local - only reverse
17 queries were intercepted. THis appears to have been broken
18 since 2.69. Thanks to Josh Stone for finding the bug.
20 Eliminate IPv6 privacy addresses and deprecated addresses from
21 the answers given by --interface-name. Note that reverse queries
22 (ie looking for names, given addresses) are not affected.
23 Thanks to Michael Gorbach for the suggestion.
25 Fix crash in DNSSEC code with long RRs. Thanks to Marco Davids
26 for the bug report.
28 Add --ignore-address option. Ignore replies to A-record
29 queries which include the specified address. No error is
30 generated, dnsmasq simply continues to listen for another
31 reply. This is useful to defeat blocking strategies which
32 rely on quickly supplying a forged answer to a DNS
33 request for certain domains, before the correct answer can
34 arrive. Thanks to Glen Huang for the patch.
36 Revisit the part of DNSSEC validation which determines if an
37 unsigned answer is legit, or is in some part of the DNS
38 tree which should be signed. Dnsmasq now works from the
39 DNS root downward looking for the limit of signed
40 delegations, rather than working bottom up. This is
41 both more correct, and less likely to trip over broken
42 nameservers in the unsigned parts of the DNS tree
43 which don't respond well to DNSSEC queries.
45 Add --log-queries=extra option, which makes logs easier
46 to search automatically.
48 Add --min-cache-ttl option. I've resisted this for a long
49 time, on the grounds that disbelieving TTLs is never a
50 good idea, but I've been persuaded that there are
51 sometimes reasons to do it. (Step forward, GFW).
52 To avoid misuse, there's a hard limit on the TTL
53 floor of one hour. Thansk to RinSatsuki for the patch.
55 Cope with multiple interfaces with the same link-local
56 address. (IPv6 addresses are scoped, so this is allowed.)
57 Thanks to Cory Benfield for help with this.
59 Add --dhcp-hostsdir. This allows addition of new host
60 configurations to a running dnsmasq instance much more
61 cheaply than having dnsmasq re-read all its existing
62 configuration each time.
64 Don't reply to DHCPv6 SOLICIT messages if we're not
65 configured to do stateful DHCPv6. Thanks to Win King Wan
66 for the patch.
68 Fix broken DNSSEC validation of ECDSA signatures.
70 Add --dnssec-timestamp option, which provides an automatic
71 way to detect when the system time becomes valid after
72 boot on systems without an RTC, whilst allowing DNS
73 queries before the clock is valid so that NTP can run.
74 Thanks to Kevin Darbyshire-Bryant for developing this idea.
76 Add --tftp-no-fail option. Thanks to Stefan Tomanek for
77 the patch.
79 Fix crash caused by looking up servers.bind, CHAOS text
80 record, when more than about five --servers= lines are
81 in the dnsmasq config. This causes memory corruption
82 which causes a crash later. Thanks to Matt Coddington for
83 sterling work chasing this down.
85 Fix crash on receipt of certain malformed DNS requests.
86 Thanks to Nick Sampanis for spotting the problem.
87 Note that this is could allow the dnsmasq process's
88 memory to be read by an attacker under certain
89 circumstances, so it has a CVE, CVE-2015-3294
91 Fix crash in authoritative DNS code, if a .arpa zone
92 is declared as authoritative, and then a PTR query which
93 is not to be treated as authoritative arrived. Normally,
94 directly declaring .arpa zone as authoritative is not
95 done, so this crash wouldn't be seen. Instead the
96 relevant .arpa zone should be specified as a subnet
97 in the auth-zone declaration. Thanks to Johnny S. Lee
98 for the bugreport and initial patch.
100 Fix authoritative DNS code to correctly reply to NS
101 and SOA queries for .arpa zones for which we are
102 declared authoritative by means of a subnet in auth-zone.
103 Previously we provided correct answers to PTR queries
104 in such zones (including NS and SOA) but not direct
105 NS and SOA queries. Thanks to Johnny S. Lee for
106 pointing out the problem.
108 Fix logging of DHCPREPLY which should be suppressed
109 by quiet-dhcp6. Thanks to J. Pablo Abonia for
110 spotting the problem.
112 Try and handle net connections with broken fragmentation
113 that lose large UDP packets. If a server times out,
114 reduce the maximum UDP packet size field in the EDNS0
115 header to 1280 bytes. If it then answers, make that
116 change permanent.
118 Check IPv4-mapped IPv6 addresses when --stop-rebind
119 is active. Thanks to Jordan Milne for spotting this.
121 Allow DHCPv4 options T1 and T2 to be set using --dhcp-option.
122 Thanks to Kevin Benton for patches and work on this.
124 Fix code for DHCPCONFIRM DHCPv6 messages to confirm addresses
125 in the correct subnet, even of not in dynamic address
126 allocation range. Thanks to Steve Hirsch for spotting
127 the problem.
129 Add AddDhcpLease and DeleteDhcpLease DBus methods. Thanks
130 to Nicolas Cavallari for the patch.
132 Allow configuration of router advertisements without the
133 "on-link" bit set. Thanks to Neil Jerram for the patch.
135 Extend --bridge-interface to DHCPv6 and router
136 advertisements. Thanks to Neil Jerram for the patch.
139 version 2.72
140 Add ra-advrouter mode, for RFC-3775 mobile IPv6 support.
142 Add support for "ipsets" in *BSD, using pf. Thanks to
143 Sven Falempim for the patch.
145 Fix race condition which could lock up dnsmasq when an
146 interface goes down and up rapidly. Thanks to Conrad
147 Kostecki for helping to chase this down.
149 Add DBus methods SetFilterWin2KOption and SetBogusPrivOption
150 Thanks to the Smoothwall project for the patch.
152 Fix failure to build against Nettle-3.0. Thanks to Steven
153 Barth for spotting this and finding the fix.
155 When assigning existing DHCP leases to intefaces by comparing
156 networks, handle the case that two or more interfaces have the
157 same network part, but different prefix lengths (favour the
158 longer prefix length.) Thanks to Lung-Pin Chang for the
159 patch.
161 Add a mode which detects and removes DNS forwarding loops, ie
162 a query sent to an upstream server returns as a new query to
163 dnsmasq, and would therefore be forwarded again, resulting in
164 a query which loops many times before being dropped. Upstream
165 servers which loop back are disabled and this event is logged.
166 Thanks to Smoothwall for their sponsorship of this feature.
168 Extend --conf-dir to allow filtering of files. So
169 --conf-dir=/etc/dnsmasq.d,\*.conf
170 will load all the files in /etc/dnsmasq.d which end in .conf
172 Fix bug when resulted in NXDOMAIN answers instead of NODATA in
173 some circumstances.
175 Fix bug which caused dnsmasq to become unresponsive if it
176 failed to send packets due to a network interface disappearing.
177 Thanks to Niels Peen for spotting this.
179 Fix problem with --local-service option on big-endian platforms
180 Thanks to Richard Genoud for the patch.
183 version 2.71
184 Subtle change to error handling to help DNSSEC validation
185 when servers fail to provide NODATA answers for
186 non-existent DS records.
188 Tweak code which removes DNSSEC records from answers when
189 not required. Fixes broken answers when additional section
190 has real records in it. Thanks to Marco Davids for the bug
191 report.
193 Fix DNSSEC validation of ANY queries. Thanks to Marco Davids
194 for spotting that too.
196 Fix total DNS failure and 100% CPU use if cachesize set to zero,
197 regression introduced in 2.69. Thanks to James Hunt and
198 the Ubuntu crowd for assistance in fixing this.
201 version 2.70
202 Fix crash, introduced in 2.69, on TCP request when dnsmasq
203 compiled with DNSSEC support, but running without DNSSEC
204 enabled. Thanks to Manish Sing for spotting that one.
206 Fix regression which broke ipset functionality. Thanks to
207 Wang Jian for the bug report.
210 version 2.69
211 Implement dynamic interface discovery on *BSD. This allows
212 the contructor: syntax to be used in dhcp-range for DHCPv6
213 on the BSD platform. Thanks to Matthias Andree for
214 valuable research on how to implement this.
216 Fix infinite loop associated with some --bogus-nxdomain
217 configs. Thanks fogobogo for the bug report.
219 Fix missing RA RDNS option with configuration like
220 --dhcp-option=option6:23,[::] Thanks to Tsachi Kimeldorfer
221 for spotting the problem.
223 Add [fd00::] and [fe80::] as special addresses in DHCPv6
224 options, analogous to [::]. [fd00::] is replaced with the
225 actual ULA of the interface on the machine running
226 dnsmasq, [fe80::] with the link-local address.
227 Thanks to Tsachi Kimeldorfer for championing this.
229 DNSSEC validation and caching. Dnsmasq needs to be
230 compiled with this enabled, with
232 make dnsmasq COPTS=-DHAVE_DNSSEC
234 this add dependencies on the nettle crypto library and the
235 gmp maths library. It's possible to have these linked
236 statically with
238 make dnsmasq COPTS='-DHAVE_DNSSEC -DHAVE_DNSSEC_STATIC'
240 which bloats the dnsmasq binary, but saves the size of
241 the shared libraries which are much bigger.
243 To enable, DNSSEC, you will need a set of
244 trust-anchors. Now that the TLDs are signed, this can be
245 the keys for the root zone, and for convenience they are
246 included in trust-anchors.conf in the dnsmasq
247 distribution. You should of course check that these are
248 legitimate and up-to-date. So, adding
250 conf-file=/path/to/trust-anchors.conf
251 dnssec
253 to your config is all thats needed to get things
254 working. The upstream nameservers have to be DNSSEC-capable
255 too, of course. Many ISP nameservers aren't, but the
256 Google public nameservers (8.8.8.8 and 8.8.4.4) are.
257 When DNSSEC is configured, dnsmasq validates any queries
258 for domains which are signed. Query results which are
259 bogus are replaced with SERVFAIL replies, and results
260 which are correctly signed have the AD bit set. In
261 addition, and just as importantly, dnsmasq supplies
262 correct DNSSEC information to clients which are doing
263 their own validation, and caches DNSKEY, DS and RRSIG
264 records, which significantly improve the performance of
265 downstream validators. Setting --log-queries will show
266 DNSSEC in action.
268 If a domain is returned from an upstream nameserver without
269 DNSSEC signature, dnsmasq by default trusts this. This
270 means that for unsigned zone (still the majority) there
271 is effectively no cost for having DNSSEC enabled. Of course
272 this allows an attacker to replace a signed record with a
273 false unsigned record. This is addressed by the
274 --dnssec-check-unsigned flag, which instructs dnsmasq
275 to prove that an unsigned record is legitimate, by finding
276 a secure proof that the zone containing the record is not
277 signed. Doing this has costs (typically one or two extra
278 upstream queries). It also has a nasty failure mode if
279 dnsmasq's upstream nameservers are not DNSSEC capable.
280 Without --dnssec-check-unsigned using such an upstream
281 server will simply result in not queries being validated;
282 with --dnssec-check-unsigned enabled and a
283 DNSSEC-ignorant upstream server, _all_ queries will fail.
285 Note that DNSSEC requires that the local time is valid and
286 accurate, if not then DNSSEC validation will fail. NTP
287 should be running. This presents a problem for routers
288 without a battery-backed clock. To set the time needs NTP
289 to do DNS lookups, but lookups will fail until NTP has run.
290 To address this, there's a flag, --dnssec-no-timecheck
291 which disables the time checks (only) in DNSSEC. When dnsmasq
292 is started and the clock is not synced, this flag should
293 be used. As soon as the clock is synced, SIGHUP dnsmasq.
294 The SIGHUP clears the cache of partially-validated data and
295 resets the no-timecheck flag, so that all DNSSEC checks
296 henceforward will be complete.
298 The development of DNSSEC in dnsmasq was started by
299 Giovanni Bajo, to whom huge thanks are owed. It has been
300 supported by Comcast, whose techfund grant has allowed for
301 an invaluable period of full-time work to get it to
302 a workable state.
304 Add --rev-server. Thanks to Dave Taht for suggesting this.
306 Add --servers-file. Allows dynamic update of upstream servers
307 full access to configuration.
309 Add --local-service. Accept DNS queries only from hosts
310 whose address is on a local subnet, ie a subnet for which
311 an interface exists on the server. This option
312 only has effect if there are no --interface --except-interface,
313 --listen-address or --auth-server options. It is intended
314 to be set as a default on installation, to allow
315 unconfigured installations to be useful but also safe from
316 being used for DNS amplification attacks.
318 Fix crashes in cache_get_cname_target() when dangling CNAMEs
319 encountered. Thanks to Andy and the rt-n56u project for
320 find this and helping to chase it down.
322 Fix wrong RCODE in authoritative DNS replies to PTR queries. The
323 correct answer was included, but the RCODE was set to NXDOMAIN.
324 Thanks to Craig McQueen for spotting this.
326 Make statistics available as DNS queries in the .bind TLD as
327 well as logging them.
330 version 2.68
331 Use random addresses for DHCPv6 temporary address
332 allocations, instead of algorithmically determined stable
333 addresses.
335 Fix bug which meant that the DHCPv6 DUID was not available
336 in DHCP script runs during the lifetime of the dnsmasq
337 process which created the DUID de-novo. Once the DUID was
338 created and stored in the lease file and dnsmasq
339 restarted, this bug disappeared.
341 Fix bug introduced in 2.67 which could result in erroneous
342 NXDOMAIN returns to CNAME queries.
344 Fix build failures on MacOS X and openBSD.
346 Allow subnet specifications in --auth-zone to be interface
347 names as well as address literals. This makes it possible
348 to configure authoritative DNS when local address ranges
349 are dynamic and works much better than the previous
350 work-around which exempted contructed DHCP ranges from the
351 IP address filtering. As a consequence, that work-around
352 is removed. Under certain circumstances, this change wil
353 break existing configuration: if you're relying on the
354 contructed-range exception, you need to change --auth-zone
355 to specify the same interface as is used to construct your
356 DHCP ranges, probably with a trailing "/6" like this:
357 --auth-zone=example.com,eth0/6 to limit the addresses to
358 IPv6 addresses of eth0.
360 Fix problems when advertising deleted IPv6 prefixes. If
361 the prefix is deleted (rather than replaced), it doesn't
362 get advertised with zero preferred time. Thanks to Tsachi
363 for the bug report.
365 Fix segfault with some locally configured CNAMEs. Thanks
366 to Andrew Childs for spotting the problem.
368 Fix memory leak on re-reading /etc/hosts and friends,
369 introduced in 2.67.
371 Check the arrival interface of incoming DNS and TFTP
372 requests via IPv6, even in --bind-interfaces mode. This
373 isn't possible for IPv4 and can generate scary warnings,
374 but as it's always possible for IPv6 (the API always
375 exists) then we should do it always.
377 Tweak the rules on prefix-lengths in --dhcp-range for
378 IPv6. The new rule is that the specified prefix length
379 must be larger than or equal to the prefix length of the
380 corresponding address on the local interface.
383 version 2.67
384 Fix crash if upstream server returns SERVFAIL when
385 --conntrack in use. Thanks to Giacomo Tazzari for finding
386 this and supplying the patch.
388 Repair regression in 2.64. That release stopped sending
389 lease-time information in the reply to DHCPINFORM
390 requests, on the correct grounds that it was a standards
391 violation. However, this broke the dnsmasq-specific
392 dhcp_lease_time utility. Now, DHCPINFORM returns
393 lease-time only if it's specifically requested
394 (maintaining standards) and the dhcp_lease_time utility
395 has been taught to ask for it (restoring functionality).
397 Fix --dhcp-match, --dhcp-vendorclass and --dhcp-userclass
398 to work with BOOTP and well as DHCP. Thanks to Peter
399 Korsgaard for spotting the problem.
401 Add --synth-domain. Thanks to Vishvananda Ishaya for
402 suggesting this.
404 Fix failure to compile ipset.c if old kernel headers are
405 in use. Thanks to Eugene Rudoy for pointing this out.
407 Handle IPv4 interface-address labels in Linux. These are
408 often used to emulate the old IP-alias addresses. Before,
409 using --interface=eth0 would service all the addresses of
410 eth0, including ones configured as aliases, which appear
411 in ifconfig as eth0:0. Now, only addresses with the label
412 eth0 are active. This is not backwards compatible: if you
413 want to continue to bind the aliases too, you need to add
414 eg. --interface=eth0:0 to the config.
416 Fix "failed to set SO_BINDTODEVICE on DHCP socket: Socket
417 operation on non-socket" error on startup with
418 configurations which have exactly one --interface option
419 and do RA but _not_ DHCPv6. Thanks to Trever Adams for the
420 bug report.
422 Generalise --interface-name to cope with IPv6 addresses
423 and multiple addresses per interface per address family.
425 Fix option parsing for --dhcp-host, which was generating a
426 spurious error when all seven possible items were
427 included. Thanks to Zhiqiang Wang for the bug report.
429 Remove restriction on prefix-length in --auth-zone. Thanks
430 to Toke Hoiland-Jorgensen for suggesting this.
432 Log when the maximum number of concurrent DNS queries is
433 reached. Thanks to Marcelo Salhab Brogliato for the patch.
435 If wildcards are used in --interface, don't assume that
436 there will only ever be one available interface for DHCP
437 just because there is one at start-up. More may appear, so
438 we can't use SO_BINDTODEVICE. Thanks to Natrio for the bug
439 report.
441 Increase timeout/number of retries in TFTP to accomodate
442 AudioCodes Voice Gateways doing streaming writes to flash.
443 Thanks to Damian Kaczkowski for spotting the problem.
445 Fix crash with empty DHCP string options when adding zero
446 terminator. Thanks to Patrick McLean for the bug report.
448 Allow hostnames to start with a number, as allowed in
449 RFC-1123. Thanks to Kyle Mestery for the patch.
451 Fixes to DHCP FQDN option handling: don't terminate FQDN
452 if domain not known and allow a FQDN option with blank
453 name to request that a FQDN option is returned in the
454 reply. Thanks to Roy Marples for the patch.
456 Make --clear-on-reload apply to setting upstream servers
457 via DBus too.
459 When the address which triggered the construction of an
460 advertised IPv6 prefix disappears, continue to advertise
461 the prefix for up to 2 hours, with the preferred lifetime
462 set to zero. This satisfies RFC 6204 4.3 L-13 and makes
463 things work better if a prefix disappears without being
464 deprecated first. Thanks to Uwe Schindler for persuasively
465 arguing for this.
467 Fix MAC address enumeration on *BSD. Thanks to Brad Smith
468 for the bug report.
470 Support RFC-4242 information-refresh-time options in the
471 reply to DHCPv6 information-request. The lease time of the
472 smallest valid dhcp-range is sent. Thanks to Uwe Schindler
473 for suggesting this.
475 Make --listen-address higher priority than --except-interface
476 in all circumstances. Thanks to Thomas Hood for the bugreport.
478 Provide independent control over which interfaces get TFTP
479 service. If enable-tftp is given a list of interfaces, then TFTP
480 is provided on those. Without the list, the previous behaviour
481 (provide TFTP to the same interfaces we provide DHCP to)
482 is retained. Thanks to Lonnie Abelbeck for the suggestion.
484 Add --dhcp-relay config option. Many thanks to vtsl.net
485 for sponsoring this development.
487 Fix crash with empty tag: in --dhcp-range. Thanks to
488 Kaspar Schleiser for the bug report.
490 Add "baseline" and "bloatcheck" makefile targets, for
491 revealing size changes during development. Thanks to
492 Vladislav Grishenko for the patch.
494 Cope with DHCPv6 clients which send REQUESTs without
495 address options - treat them as SOLICIT with rapid commit.
497 Support identification of clients by MAC address in
498 DHCPv6. When using a relay, the relay must support RFC
499 6939 for this to work. It always works for directly
500 connected clients. Thanks to Vladislav Grishenko
501 for prompting this feature.
503 Remove the rule for constructed DHCP ranges that the local
504 address must be either the first or last address in the
505 range. This was originally to avoid SLAAC addresses, but
506 we now explicitly autoconfig and privacy addresses instead.
508 Update Polish translation. Thanks to Jan Psota.
510 Fix problem in DHCPv6 vendorclass/userclass matching
511 code. Thanks to Tanguy Bouzeloc for the patch.
513 Update Spanish transalation. Thanks to Vicente Soriano.
515 Add --ra-param option. Thanks to Vladislav Grishenko for
516 inspiration on this.
518 Add --add-subnet configuration, to tell upstream DNS
519 servers where the original client is. Thanks to DNSthingy
520 for sponsoring this feature.
522 Add --quiet-dhcp, --quiet-dhcp6 and --quiet-ra. Thanks to
523 Kevin Darbyshire-Bryant for the initial patch.
525 Allow A/AAAA records created by --interface-name to be the
526 target of --cname. Thanks to Hadmut Danisch for the
527 suggestion.
529 Avoid treating a --dhcp-host which has an IPv6 address
530 as eligable for use with DHCPv4 on the grounds that it has
531 no address, and vice-versa. Thanks to Yury Konovalov for
532 spotting the problem.
534 Do a better job caching dangling CNAMEs. Thanks to Yves
535 Dorfsman for spotting the problem.
538 version 2.66
539 Add the ability to act as an authoritative DNS
540 server. Dnsmasq can now answer queries from the wider 'net
541 with local data, as long as the correct NS records are set
542 up. Only local data is provided, to avoid creating an open
543 DNS relay. Zone transfer is supported, to allow secondary
544 servers to be configured.
546 Add "constructed DHCP ranges" for DHCPv6. This is intended
547 for IPv6 routers which get prefixes dynamically via prefix
548 delegation. With suitable configuration, stateful DHCPv6
549 and RA can happen automatically as prefixes are delegated
550 and then deprecated, without having to re-write the
551 dnsmasq configuration file or restart the daemon. Thanks to
552 Steven Barth for extensive testing and development work on
553 this idea.
555 Fix crash on startup on Solaris 11. Regression probably
556 introduced in 2.61. Thanks to Geoff Johnstone for the
557 patch.
559 Add code to make behaviour for TCP DNS requests that same
560 as for UDP requests, when a request arrives for an allowed
561 address, but via a banned interface. This change is only
562 active on Linux, since the relevant API is missing (AFAIK)
563 on other platforms. Many thanks to Tomas Hozza for
564 spotting the problem, and doing invaluable discovery of
565 the obscure and undocumented API required for the solution.
567 Don't send the default DHCP option advertising dnsmasq as
568 the local DNS server if dnsmasq is configured to not act
569 as DNS server, or it's configured to a non-standard port.
571 Add DNSMASQ_CIRCUIT_ID, DNSMASQ_SUBCRIBER_ID,
572 DNSMASQ_REMOTE_ID variables to the environment of the
573 lease-change script (and the corresponding Lua). These hold
574 information inserted into the DHCP request by a DHCP relay
575 agent. Thanks to Lakefield Communications for providing a
576 bounty for this addition.
578 Fixed crash, introduced in 2.64, whilst handling DHCPv6
579 information-requests with some common configurations.
580 Thanks to Robert M. Albrecht for the bug report and
581 chasing the problem.
583 Add --ipset option. Thanks to Jason A. Donenfeld for the
584 patch.
586 Don't erroneously reject some option names in --dhcp-match
587 options. Thanks to Benedikt Hochstrasser for the bug report.
589 Allow a trailing '*' wildcard in all interface-name
590 configurations. Thanks to Christian Parpart for the patch.
592 Handle the situation where libc headers define
593 SO_REUSEPORT, but the kernel in use doesn't, to cope with
594 the introduction of this option to Linux. Thanks to Rich
595 Felker for the bug report.
597 Update Polish translation. Thanks to Jan Psota.
599 Fix crash if the configured DHCP lease limit is
600 reached. Regression occurred in 2.61. Thanks to Tsachi for
601 the bug report.
603 Update the French translation. Thanks to Gildas le Nadan.
606 version 2.65
607 Fix regression which broke forwarding of queries sent via
608 TCP which are not for A and AAAA and which were directed to
609 non-default servers. Thanks to Niax for the bug report.
611 Fix failure to build with DHCP support excluded. Thanks to
612 Gustavo Zacarias for the patch.
614 Fix nasty regression in 2.64 which completely broke cacheing.
617 version 2.64
618 Handle DHCP FQDN options with all flag bits zero and
619 --dhcp-client-update set. Thanks to Bernd Krumbroeck for
620 spotting the problem.
622 Finesse the check for /etc/hosts names which conflict with
623 DHCP names. Previously a name/address pair in /etc/hosts
624 which didn't match the name/address of a DHCP lease would
625 generate a warning. Now that only happesn if there is not
626 also a match. This allows multiple addresses for a name in
627 /etc/hosts with one of them assigned via DHCP.
629 Fix broken vendor-option processing for BOOTP. Thanks to
630 Hans-Joachim Baader for the bug report.
632 Don't report spurious netlink errors, regression in
633 2.63. Thanks to Vladislav Grishenko for the patch.
635 Flag DHCP or DHCPv6 in starup logging. Thanks to
636 Vladislav Grishenko for the patch.
638 Add SetServersEx method in DBus interface. Thanks to Dan
639 Williams for the patch.
641 Add SetDomainServers method in DBus interface. Thanks to
642 Roy Marples for the patch.
644 Fix build with later Lua libraries. Thansk to Cristian
645 Rodriguez for the patch.
647 Add --max-cache-ttl option. Thanks to Dennis Kaarsemaker
648 for the patch.
650 Fix breakage of --host-record parsing, resulting in
651 infinte loop at startup. Regression in 2.63. Thanks to
652 Haim Gelfenbeyn for spotting this.
654 Set SO_REUSEADDRESS and SO_V6ONLY options on the DHCPv6
655 socket, this allows multiple instances of dnsmasq on a
656 single machine, in the same way as for DHCPv4. Thanks to
657 Gene Czarcinski and Vladislav Grishenko for work on this.
659 Fix DHCPv6 to do access control correctly when it's
660 configured with --listen-address. Thanks to
661 Gene Czarcinski for sorting this out.
663 Add a "wildcard" dhcp-range which works for any IPv6
664 subnet, --dhcp-range=::,static Useful for Stateless
665 DHCPv6. Thanks to Vladislav Grishenko for the patch.
667 Don't include lease-time in DHCPACK replies to DHCPINFORM
668 queries, since RFC-2131 says we shouldn't. Thanks to
669 Wouter Ibens for pointing this out.
671 Makefile tweak to do dependency checking on header files.
672 Thanks to Johan Peeters for the patch.
674 Check interface for outgoing unsolicited router
675 advertisements, rather than relying on interface address
676 configuration. Thanks to Gene Czarinski for the patch.
678 Handle better attempts to transmit on interfaces which are
679 still doing DAD, and specifically do not just transmit
680 without setting source address and interface, since this
681 can cause very puzzling effects when a router
682 advertisement goes astray. Thanks again to Gene Czarinski.
684 Get RA timers right when there is more than one
685 dhcp-range on a subnet.
688 version 2.63
689 Do duplicate dhcp-host address check in --test mode.
691 Check that tftp-root directories are accessible before
692 start-up. Thanks to Daniel Veillard for the initial patch.
694 Allow more than one --tfp-root flag. The per-interface
695 stuff is pointless without that.
697 Add --bind-dynamic. A hybrid mode between the default and
698 --bind-interfaces which copes with dynamically created
699 interfaces.
701 A couple of fixes to the build system for Android. Thanks
702 to Metin Kaya for the patches.
704 Remove the interface:<interface> argument in --dhcp-range, and
705 the interface argument to --enable-tftp. These were a
706 still-born attempt to allow automatic isolated
707 configuration by libvirt, but have never (to my knowledge)
708 been used, had very strange semantics, and have been
709 superceded by other mechanisms.
711 Fixed bug logging filenames when duplicate dhcp-host
712 addresses are found. Thanks to John Hanks for the patch.
714 Fix regression in 2.61 which broke caching of CNAME
715 chains. Thanks to Atul Gupta for the bug report.
717 Allow the target of a --cname flag to be another --cname.
719 Teach DHCPv6 about the RFC 4242 information-refresh-time
720 option, and add parsing if the minutes, hours and days
721 format for options. Thanks to Francois-Xavier Le Bail for
722 the suggestion.
724 Allow "w" (for week) as multiplier in lease times, as well
725 as seconds, minutes, hours and days. Ãlvaro Gámez Machado
726 spotted the ommission.
728 Update French translation. Thanks to Gildas Le Nadan.
730 Allow a DBus service name to be given with --enable-dbus
731 which overrides the default,
732 uk.org.thekelleys.dnsmasq. Thanks to Mathieu
733 Trudel-Lapierre for the patch.
735 Set the "prefix on-link" bit in Router
736 Advertisements. Thanks to Gui Iribarren for the patch.
739 version 2.62
740 Update German translation. Thanks to Conrad Kostecki.
742 Cope with router-solict packets wich don't have a valid
743 source address. Thanks to Vladislav Grishenko for the patch.
745 Fixed bug which caused missing periodic router
746 advertisements with some configurations. Thanks to
747 Vladislav Grishenko for the patch.
749 Fixed bug which broke DHCPv6/RA with prefix lengths
750 which are not divisible by 8. Thanks to Andre Coetzee
751 for spotting this.
753 Fix non-response to router-solicitations when
754 router-advertisement configured, but DHCPv6 not
755 configured. Thanks to Marien Zwart for the patch.
757 Add --dns-rr, to allow arbitrary DNS resource records.
759 Fixed bug which broke RA scheduling when an interface had
760 two addresses in the same network. Thanks to Jim Bos for
761 his help nailing this.
763 version 2.61
764 Re-write interface discovery code on *BSD to use
765 getifaddrs. This is more portable, more straightforward,
766 and allows us to find the prefix length for IPv6
767 addresses.
769 Add ra-names, ra-stateless and slaac keywords for DHCPv6.
770 Dnsmasq can now synthesise AAAA records for dual-stack
771 hosts which get IPv6 addresses via SLAAC. It is also now
772 possible to use SLAAC and stateless DHCPv6, and to
773 tell clients to use SLAAC addresses as well as DHCP ones.
774 Thanks to Dave Taht for help with this.
776 Add --dhcp-duid to allow DUID-EN uids to be used.
778 Explicity send DHCPv6 replies to the correct port, instead
779 of relying on clients to send requests with the correct
780 source address, since at least one client in the wild gets
781 this wrong. Thanks to Conrad Kostecki for help tracking
782 this down.
784 Send a preference value of 255 in DHCPv6 replies when
785 --dhcp-authoritative is in effect. This tells clients not
786 to wait around for other DHCP servers.
788 Better logging of DHCPv6 options.
790 Add --host-record. Thanks to Rob Zwissler for the
791 suggestion.
793 Invoke the DHCP script with action "tftp" when a TFTP file
794 transfer completes. The size of the file, address to which
795 it was sent and complete pathname are supplied. Note that
796 version 2.60 introduced some script incompatibilties
797 associated with DHCPv6, and this is a further change. To
798 be safe, scripts should ignore unknown actions, and if
799 not IPv6-aware, should exit if the environment
800 variable DNSMASQ_IAID is set. The use-case for this is
801 to track netboot/install. Suggestion from Shantanu
802 Gadgil.
804 Update contrib/port-forward/dnsmasq-portforward to reflect
805 the above.
807 Set the environment variable DNSMASQ_LOG_DHCP when running
808 the script id --log-dhcp is in effect, so that script can
809 taylor their logging verbosity. Suggestion from Malte
810 Forkel.
812 Arrange that addresses specified with --listen-address
813 work even if there is no interface carrying the
814 address. This is chiefly useful for IPv4 loopback
815 addresses, where any address in 127.0.0.0/8 is a valid
816 loopback address, but normally only 127.0.0.1 appears on
817 the lo interface. Thanks to Mathieu Trudel-Lapierre for
818 the idea and initial patch.
820 Fix crash, introduced in 2.60, when a DHCPINFORM is
821 received from a network which has no valid dhcp-range.
822 Thanks to Stephane Glondu for the bug report.
824 Add a new DHCP lease time keyword, "deprecated" for
825 --dhcp-range. This is only valid for IPv6, and sets the
826 preffered lease time for both DHCP and RA to zero. The
827 effect is that clients can continue to use the address
828 for existing connections, but new connections will use
829 other addresses, if they exist. This makes hitless
830 renumbering at least possible.
832 Fix bug in address6_available() which caused DHCPv6 lease
833 aquisition to fail if more than one dhcp-range in use.
835 Provide RDNSS and DNSSL data in router advertisements,
836 using the settings provided for DHCP options
837 option6:domain-search and option6:dns-server.
839 Tweak logo/favicon.ico to add some transparency. Thanks to
840 SamLT for work on this.
842 Don't cache data from non-recursive nameservers, since it
843 may erroneously look like a valid CNAME to a non-exitant
844 name. Thanks to Ben Winslow for finding this.
846 Call SO_BINDTODEVICE on the DHCP socket(s) when doing DHCP
847 on exactly one interface and --bind-interfaces is set. This
848 makes the OpenStack use-case of one dnsmasq per virtual
849 interface work. This is only available on Linux; it's not
850 supported on other platforms. Thanks to Vishvananda Ishaya
851 and the OpenStack team for the suggestion.
853 Updated French translation. Thanks to Gildas Le Nadan.
855 Give correct from-cache answers to explict CNAME queries.
856 Thanks to Rob Zwissler for spotting this.
858 Add --tftp-lowercase option. Thanks to Oliver Rath for the
859 patch.
861 Ensure that the DBus DhcpLeaseUpdated events are generated
862 when a lease goes through INIT_REBOOT state, even if the
863 dhcp-script is not in use. Thanks to Antoaneta-Ecaterina
864 Ene for the patch.
866 Fix failure of TFTP over IPv4 on OpenBSD platform. Thanks
867 to Brad Smith for spotting this.
870 version 2.60
871 Fix compilation problem in Mac OS X Lion. Thanks to Olaf
872 Flebbe for the patch.
874 Fix DHCP when using --listen-address with an IP address
875 which is not the primary address of an interface.
877 Add --dhcp-client-update option.
879 Add Lua integration. Dnsmasq can now execute a DHCP
880 lease-change script written in Lua. This needs to be
881 enabled at compile time by setting HAVE_LUASCRIPT in
882 src/config.h or running "make COPTS=-DHAVE_LUASCRIPT"
883 Thanks to Jan-Piet Mens for the idea and proof-of-concept
884 implementation.
886 Tidied src/config.h to distinguish between
887 platform-dependent compile-time options which are selected
888 automatically, and builder-selectable compile time
889 options. Document the latter better, and describe how to
890 set them from the make command line.
892 Tidied up IPPROTO_IP/SOL_IP (and IPv6 equivalent)
893 confusion. IPPROTO_IP works everywhere now.
895 Set TOS on DHCP sockets, this improves things on busy
896 wireless networks. Thanks to Dave Taht for the patch.
898 Determine VERSION automatically based on git magic:
899 release tags or hash values.
901 Improve start-up speed when reading large hosts files
902 containing many distinct addresses.
904 Fix problem if dnsmasq is started without the stdin,
905 stdout and stderr file descriptors open. This can manifest
906 itself as 100% CPU use. Thanks to Chris Moore for finding
907 this.
909 Fix shell-scripting bug in bld/pkg-wrapper. Thanks to
910 Mark Mitchell for the patch.
912 Allow the TFP server or boot server in --pxe-service, to
913 be a domain name instead of an IP address. This allows for
914 round-robin to multiple servers, in the same way as
915 --dhcp-boot. A good suggestion from Cristiano Cumer.
917 Support BUILDDIR variable in the Makefile. Allows builds
918 for multiple archs from the same source tree with eg.
919 make BUILDDIR=linux (relative to dnsmasq tree)
920 make BUILDDIR=/tmp/openbsd (absolute path)
921 If BUILDDIR is not set, compilation happens in the src
922 directory, as before. Suggestion from Mark Mitchell.
924 Support DHCPv6. Support is there for the sort of things
925 the existing v4 server does, including tags, options,
926 static addresses and relay support. Missing is prefix
927 delegation, which is probably not required in the dnsmasq
928 niche, and an easy way to accept prefix delegations from
929 an upstream DHCPv6 server, which is. Future plans include
930 support for DHCPv6 router option and MAC address option
931 (to make selecting clients by MAC address work like IPv4).
932 These will be added as the standards mature.
933 This code has been tested, but this is the first release,
934 so don't bet the farm on it just yet. Many thanks to all
935 testers who have got it this far.
937 Support IPv6 router advertisements. This is a
938 simple-minded implementation, aimed at providing the
939 vestigial RA needed to go alongside IPv6. Is picks up
940 configuration from the DHCPv6 conf, and should just need
941 enabling with --enable-ra.
943 Fix long-standing wrinkle with --localise-queries that
944 could result in wrong answers when DNS packets arrive
945 via an interface other than the expected one. Thanks to
946 Lorenzo Milesi and John Hanks for spotting this one.
948 Update French translation. Thanks to Gildas Le Nadan.
950 Update Polish translation. Thanks to Jan Psota.
953 version 2.59
954 Fix regression in 2.58 which caused failure to start up
955 with some combinations of dnsmasq config and IPv6 kernel
956 network config. Thanks to Brielle Bruns for the bug
957 report.
959 Improve dnsmasq's behaviour when network interfaces are
960 still doing duplicate address detection (DAD). Previously,
961 dnsmasq would wait up to 20 seconds at start-up for the
962 DAD state to terminate. This is broken for bridge
963 interfaces on recent Linux kernels, which don't start DAD
964 until the bridge comes up, and so can take arbitrary
965 time. The new behaviour lets dnsmasq poll for an arbitrary
966 time whilst providing service on other interfaces. Thanks
967 to Stephen Hemminger for pointing out the problem.
970 version 2.58
971 Provide a definition of the SA_SIZE macro where it's
972 missing. Fixes build failure on openBSD.
974 Don't include a zero terminator at the end of messages
975 sent to /dev/log when /dev/log is a datagram socket.
976 Thanks to Didier Rabound for spotting the problem.
978 Add --dhcp-sequential-ip flag, to force allocation of IP
979 addresses in ascending order. Note that the default
980 pseudo-random mode is in general better but some
981 server-deployment applications need this.
983 Fix problem where a server-id of 0.0.0.0 is sent to a
984 client when a dhcp-relay is in use if a client renews a
985 lease after dnsmasq restart and before any clients on the
986 subnet get a new lease. Thanks to Mike Ruiz for assistance
987 in chasing this one down.
989 Don't return NXDOMAIN to an AAAA query if we have CNAME
990 which points to an A record only: NODATA is the correct
991 reply in this case. Thanks to Tom Fernandes for spotting
992 the problem.
994 Relax the need to supply a netmask in --dhcp-range for
995 networks which use a DHCP relay. Whilst this is still
996 desireable, in the absence of a netmask dnsmasq will use
997 a default based on the class (A, B, or C) of the address.
998 This should at least remove a cause of mysterious failure
999 for people using RFC1918 addresses and relays.
1001 Add support for Linux conntrack connection marking. If
1002 enabled with --conntrack, the connection mark for incoming
1003 DNS queries will be copied to the outgoing connections
1004 used to answer those queries. This allows clever firewall
1005 and accounting stuff. Only available if dnsmasq is
1006 compiled with HAVE_CONNTRACK and adds a dependency on
1007 libnetfilter-conntrack. Thanks to Ed Wildgoose for the
1008 initial idea, testing and sponsorship of this function.
1010 Provide a sane error message when someone attempts to
1011 match a tag in --dhcp-host.
1013 Tweak the behaviour of --domain-needed, to avoid problems
1014 with recursive nameservers downstream of dnsmasq. The new
1015 behaviour only stops A and AAAA queries, and returns
1016 NODATA rather than NXDOMAIN replies.
1018 Efficiency fix for very large DHCP configurations, thanks
1019 to James Gartrell and Mike Ruiz for help with this.
1021 Allow the TFTP-server address in --dhcp-boot to be a
1022 domain-name which is looked up in /etc/hosts. This can
1023 give multiple IP addresses which are used round-robin,
1024 thus doing TFTP server load-balancing. Thanks to Sushil
1025 Agrawal for the patch.
1027 When two tagged dhcp-options for a particular option
1028 number are both valid, use the one which is valid without
1029 a tag from the dhcp-range. Allows overriding of the value
1030 of a DHCP option for a particular host as well as
1031 per-network values. So
1032 --dhcp-range=set:interface1,......
1033 --dhcp-host=set:myhost,.....
1034 --dhcp-option=tag:interface1,option:nis-domain,"domain1"
1035 --dhcp-option=tag:myhost,option:nis-domain,"domain2"
1036 will set the NIS-domain to domain1 for hosts in the range, but
1037 override that to domain2 for a particular host.
1039 Fix bug which resulted in truncated files and timeouts for
1040 some TFTP transfers. The bug only occurs with netascii
1041 transfers and needs an unfortunate relationship between
1042 file size, blocksize and the number of newlines in the
1043 last block before it manifests itself. Many thanks to
1044 Alkis Georgopoulos for spotting the problem and providing
1045 a comprehensive test-case.
1047 Fix regression in TFTP server on *BSD platforms introduced
1048 in version 2.56, due to confusion with sockaddr
1049 length. Many thanks to Loic Pefferkorn for finding this.
1051 Support scope-ids in IPv6 addresses of nameservers from
1052 /etc/resolv.conf and in --server options. Eg
1053 nameserver fe80::202:a412:4512:7bbf%eth0 or
1054 server=fe80::202:a412:4512:7bbf%eth0. Thanks to
1055 Michael Stapelberg for the suggestion.
1057 Update Polish translation, thanks to Jan Psota.
1059 Update French translation. Thanks to Gildas Le Nadan.
1062 version 2.57
1063 Add patches to allow build under Android.
1065 Provide our own header for the DNS protocol, rather than
1066 relying on arpa/nameser.h. This has proved more or less
1067 defective over the years and the final straw is that it's
1068 effectively empty on Android.
1070 Fix regression in 2.56 which caused hex constants in
1071 configuration to be rejected if they contain the '*'
1072 wildcard.
1074 Correct wrong casts of arguments to ctype.h functions,
1075 isdigit(), isxdigit() etc. Thanks to Matthias Andree for
1076 spotting this.
1078 Allow build with IDN support independently from i18n.
1079 IDN support continues to be included automatically
1080 when i18n is included.
1081 'make COPTS=-DHAVE_IDN' is the magic incantation.
1083 Modify check on extraneous command line junk (added in
1084 2.56) so that it doesn't complain about extra _empty_
1085 arguments. Otherwise this breaks libvirt.
1088 version 2.56
1089 Add a patch to allow dnsmasq to get interface names right in a
1090 Solaris zone. Thanks to Dj Padzensky for this.
1092 Improve data-type parsing heuristics so that
1093 --dhcp-option=option:domain-search,.
1094 treats the value as a string and not an IP address.
1095 Thanks to Clemens Fischer for spotting that.
1097 Add IPv6 support to the TFTP server. Many thanks to Jan
1098 'RedBully' Seiffert for the patches.
1100 Log DNS queries at level LOG_INFO, rather then
1101 LOG_DEBUG. This makes things consistent with DHCP
1102 logging. Thanks to Adam Pribyl for spotting the problem.
1104 Ensure that dnsmasq terminates cleanly when using
1105 --syslog-async even if it cannot make a connection to the
1106 syslogd.
1108 Add --add-mac option. This is to support currently
1109 experimental DNS filtering facilities. Thanks to Benjamin
1110 Petrin for the orignal patch.
1112 Fix bug which meant that tags were ignored in dhcp-range
1113 configuration specifying PXE-proxy service. Thanks to
1114 Cristiano Cumer for spotting this.
1116 Raise an error if there is extra junk, not part of an
1117 option, on the command line.
1119 Flag a couple of log messages in cache.c as coming from
1120 the DHCP subsystem. Thanks to Olaf Westrik for the patch.
1122 Omit timestamps from logs when a) logging to stderr and
1123 b) --keep-in-forground is set. The logging facility on the
1124 other end of stderr can be assumned to supply them. Thanks
1125 to John Hallam for the patch.
1127 Don't complain about strings longer than 255 characters in
1128 --txt-record, just split the long strings into 255
1129 character chunks instead.
1131 Fix crash on double-free. This bug can only happen when
1132 dhcp-script is in use and then only in rare circumstances
1133 triggered by high DHCP transaction rate and a slow
1134 script. Thanks to Ferenc Wagner for finding the problem.
1136 Only log that a file has been sent by TFTP after the
1137 transfer has completed succesfully.
1139 A good suggestion from Ferenc Wagner: extend
1140 the --domain option to allow this sort of thing:
1141 --domain=thekelleys.org.uk,192.168.0.0/24,local
1142 which automatically creates
1143 --local=/thekelleys.org.uk/
1144 --local=/0.168.192.in-addr.arpa/
1146 Tighten up syntax checking of hex contants in the config
1147 file. Thanks to Fred Damen for spotting this.
1149 Add dnsmasq logo/icon, contributed by Justin Swift. Many
1150 thanks for that.
1152 Never cache DNS replies which have the 'cd' bit set, or
1153 which result from queries forwarded with the 'cd' bit
1154 set. The 'cd' bit instructs a DNSSEC validating server
1155 upstream to ignore signature failures and return replies
1156 anyway. Without this change it's possible to pollute the
1157 dnsmasq cache with bad data by making a query with the
1158 'cd' bit set and subsequent queries would return this data
1159 without its being marked as suspect. Thanks to Anders
1160 Kaseorg for pointing out this problem.
1162 Add --proxy-dnssec flag, for compliance with RFC
1163 4035. Dnsmasq will now clear the 'ad' bit in answers returned
1164 from upstream validating nameservers unless this option is
1165 set.
1167 Allow a filename of "-" for --conf-file to read
1168 stdin. Suggestion from Timothy Redaelli.
1170 Rotate the order of SRV records in replies, to provide
1171 round-robin load balancing when all the priorities are
1172 equal. Thanks to Peter McKinney for the suggestion.
1174 Edit
1175 contrib/MacOSX-launchd/uk.org.thekelleys.dnsmasq.plist
1176 so that it doesn't log all queries to a file by
1177 default. Thanks again to Peter McKinney.
1179 By default, setting an IPv4 address for a domain but not
1180 an IPv6 address causes dnsmasq to return
1181 an NODATA reply for IPv6 (or vice-versa). So
1182 --address=/google.com/1.2.3.4 stops IPv6 queries for
1183 *google.com from being forwarded. Make it possible to
1184 override this behaviour by defining the sematics if the
1185 same domain appears in both --server and --address.
1186 In that case, the --address has priority for the address
1187 family in which is appears, but the --server has priority
1188 of the address family which doesn't appear in --adddress
1189 So:
1190 --address=/google.com/1.2.3.4
1191 --server=/google.com/#
1192 will return 1.2.3.4 for IPv4 queries for *.google.com but
1193 forward IPv6 queries to the normal upstream nameserver.
1194 Similarly when setting an IPv6 address
1195 only this will allow forwarding of IPv4 queries. Thanks to
1196 William for pointing out the need for this.
1198 Allow more than one --dhcp-optsfile and --dhcp-hostsfile
1199 and make them understand directories as arguments in the
1200 same way as --addn-hosts. Suggestion from John Hanks.
1202 Ignore rebinding requests for leases we don't know
1203 about. Rebind is broadcast, so we might get to overhear a
1204 request meant for another DHCP server. NAKing this is
1205 wrong. Thanks to Brad D'Hondt for assistance with this.
1207 Fix cosmetic bug which produced strange output when
1208 dumping cache statistics with some configurations. Thanks
1209 to Fedor Kozhevnikov for spotting this.
1212 version 2.55
1213 Fix crash when /etc/ethers is in use. Thanks to
1214 Gianluigi Tiesi for finding this.
1216 Fix crash in netlink_multicast(). Thanks to Arno Wald for
1217 finding this one.
1219 Allow the empty domain "." in dhcp domain-search (119)
1220 options.
1223 version 2.54
1224 There is no version 2.54 to avoid confusion with 2.53,
1225 which incorrectly identifies itself as 2.54.
1228 version 2.53
1229 Fix failure to compile on Debian/kFreeBSD. Thanks to
1230 Axel Beckert and Petr Salinger.
1232 Fix code to avoid scary strict-aliasing warnings
1233 generated by gcc 4.4.
1235 Added FAQ entry warning about DHCP failures with Vista
1236 when firewalls block 255.255.255.255.
1238 Fixed bug which caused bad things to happen if a
1239 resolv.conf file which exists is subsequently removed.
1240 Thanks to Nikolai Saoukh for the patch.
1242 Rationalised the DHCP tag system. Every configuration item
1243 which can set a tag does so by adding "set:<tag>" and
1244 every configuration item which is conditional on a tag is
1245 made so by "tag:<tag>". The NOT operator changes to '!',
1246 which is a bit more intuitive too. Dhcp-host directives
1247 can set more than one tag now. The old '#' NOT,
1248 "net:" prefix and no-prefixes are still honoured, so
1249 no existing config file needs to be changed, but
1250 the documentation and new-style config files should be
1251 much less confusing.
1253 Added --tag-if to allow boolean operations on tags.
1254 This allows complicated logic to be clearer and more
1255 general. A great suggestion from Richard Voigt.
1257 Add broadcast/unicast information to DHCP logging.
1259 Allow --dhcp-broadcast to be unconditional.
1261 Fixed incorrect behaviour with NOT <tag> conditionals in
1262 dhcp-options. Thanks to Max Turkewitz for assistance
1263 finding this.
1265 If we send vendor-class encapsulated options based on the
1266 vendor-class supplied by the client, and no explicit
1267 vendor-class option is given, echo back the vendor-class
1268 from the client.
1270 Fix bug which stopped dnsmasq from matching both a
1271 circuitid and a remoteid. Thanks to Ignacio Bravo for
1272 finding this.
1274 Add --dhcp-proxy, which makes it possible to configure
1275 dnsmasq to use a DHCP relay agent as a full proxy, with
1276 all DHCP messages passing through the proxy. This is
1277 useful if the relay adds extra information to the packets
1278 it forwards, but cannot be configured with the RFC 5107
1279 server-override option.
1281 Added interface:<iface name> part to dhcp-range. The
1282 semantics of this are very odd at first sight, but it
1283 allows a single line of the form
1284 dhcp-range=interface:virt0,192.168.0.4,192.168.0.200
1285 to be added to dnsmasq configuration which then supplies
1286 DHCP and DNS services to that interface, without affecting
1287 what services are supplied to other interfaces and
1288 irrespective of the existance or lack of
1289 interface=<interface>
1290 lines elsewhere in the dnsmasq configuration. The idea is
1291 that such a line can be added automatically by libvirt
1292 or equivalent systems, without disturbing any manual
1293 configuration.
1295 Similarly to the above, allow --enable-tftp=<interface>
1297 Allow a TFTP root to be set separately for requests via
1298 different interfaces, --tftp-root=<path>,<interface>
1300 Correctly handle and log clashes between CNAMES and
1301 DNS names being given to DHCP leases. This fixes a bug
1302 which caused nonsense IP addresses to be logged. Thanks to
1303 Sergei Zhirikov for finding and analysing the problem.
1305 Tweak flush_log so as to avoid leaving the log
1306 file in non-blocking mode. O_NONBLOCK is a property of the
1307 file, not the process/descriptor.
1309 Fix contrib/Solaris10/create_package
1310 (/usr/man -> /usr/share/man) Thanks to Vita Batrla.
1312 Fix a problem where, if a client got a lease, then went
1313 to another subnet and got another lease, then moved back,
1314 it couldn't resume the old lease, but would instead get
1315 a new address. Thanks to Leonardo Rodrigues for spotting
1316 this and testing the fix.
1318 Fix weird bug which sometimes omitted certain characters
1319 from the start of quoted strings in dhcp-options. Thanks
1320 to Dayton Turner for spotting the problem.
1322 Add facility to redirect some domains to the standard
1323 upstream servers: this allows something like
1324 --server=/google.com/1.2.3.4 --server=/www.google.com/#
1325 which will send queries for *.google.com to 1.2.3.4,
1326 except *www.google.com which will be forwarded as usual.
1327 Thanks to AJ Weber for prompting this addition.
1329 Improve the hash-algorithm used to generate IP addresses
1330 from MAC addresses during initial DHCP address
1331 allocation. This improves performance when large numbers
1332 of hosts with similar MAC addresses all try and get an IP
1333 address at the same time. Thanks to Paul Smith for his
1334 work on this.
1336 Tweak DHCP code so that --bridge-interface can be used to
1337 select which IP alias of an interface should be used for
1338 DHCP purposes on Linux. If eth0 has an alias eth0:dhcp
1339 then adding --bridge-interface=eth0:dhcp,eth0 will use
1340 the address of eth0:dhcp to determine the correct subnet
1341 for DHCP address allocation. Thanks to Pawel Golaszewski
1342 for prompting this and Eric Cooper for further testing.
1344 Add --dhcp-generate-names. Suggestion by Ferenc Wagner.
1346 Tweak DNS server selection algorithm when there is more
1347 than one server available for a domain, eg.
1348 --server=/mydomain/1.1.1.1
1349 --server=/mydomain/2.2.2.2
1350 Thanks to Alberto Cuesta-Canada for spotting a weakness
1351 here.
1353 Add --max-ttl. Thanks to Fredrik Ringertz for the patch.
1355 Allow --log-facility=- to force all logging to
1356 stderr. Suggestion from Clemens Fischer.
1358 Fix regression which caused configuration like
1359 --address=/.domain.com/1.2.3.4 to be rejected. The dot to the
1360 left of the domain has been implied and not required for a
1361 long time, but it should be accepted for backward
1362 compatibility. Thanks to Andrew Burcin for spotting this.
1364 Add --rebind-domain-ok and --rebind-localhost-ok.
1365 Suggestion from Clemens Fischer.
1367 Log replies to queries of type TXT, when --log-queries
1368 is set.
1370 Fix compiler warnings when compiled with -DNO_DHCP. Thanks
1371 to Shantanu Gadgil for the patch.
1373 Updated French translation. Thanks to Gildas Le Nadan.
1375 Updated Polish translation. Thanks to Jan Psota.
1377 Updated German translation. Thanks to Matthias Andree.
1379 Added contrib/static-arp, thanks to Darren Hoo.
1381 Fix corruption of the domain when a name from /etc/hosts
1382 overrides one supplied by a DHCP client. Thanks to Fedor
1383 Kozhevnikov for spotting the problem.
1385 Updated Spanish translation. Thanks to Chris Chatham.
1388 version 2.52
1389 Work around a Linux kernel bug which insists that the
1390 length of the option passed to setsockopt must be at least
1391 sizeof(int) bytes, even if we're calling SO_BINDTODEVICE
1392 and the device name is "lo". Note that this is fixed
1393 in kernel 2.6.31, but the workaround is harmless and
1394 allows earlier kernels to be used. Also fix dnsmasq
1395 bug which reported the wrong address when this failed.
1396 Thanks to Fedor for finding this.
1398 The API for IPv6 PKTINFO changed around Linux kernel
1399 2.6.14. Workaround the case where dnsmasq is compiled
1400 against newer headers, but then run on an old kernel:
1401 necessary for some *WRT distros.
1403 Re-read the set of network interfaces when re-loading
1404 /etc/resolv.conf if --bind-interfaces is not set. This
1405 handles the case that loopback interfaces do not exist
1406 when dnsmasq is first started.
1408 Tweak the PXE code to support port 4011. This should
1409 reduce broadcasts and make things more reliable when other
1410 servers are around. It also improves inter-operability
1411 with certain clients.
1413 Make a pxe-service configuration with no filename or boot
1414 service type legal: this does a local boot. eg.
1415 pxe-service=x86PC, "Local boot"
1417 Be more conservative in detecting "A for A"
1418 queries. Dnsmasq checks if the name in a type=A query looks
1419 like a dotted-quad IP address and answers the query itself
1420 if so, rather than forwarding it. Previously dnsmasq
1421 relied in the library function inet_addr() to convert
1422 addresses, and that will accept some things which are
1423 confusing in this context, like 1.2.3 or even just
1424 1234. Now we only do A for A processing for four decimal
1425 numbers delimited by dots.
1427 A couple of tweaks to fix compilation on Solaris. Thanks
1428 to Joel Macklow for help with this.
1430 Another Solaris compilation tweak, needed for Solaris
1431 2009.06. Thanks to Lee Essen for that.
1433 Added extract packaging stuff from Lee Essen to
1434 contrib/Solaris10.
1436 Increased the default limit on number of leases to 1000
1437 (from 150). This is mainly a defence against DoS attacks,
1438 and for the average "one for two class C networks"
1439 installation, IP address exhaustion does that just as
1440 well. Making the limit greater than the number of IP
1441 addresses available in such an installation removes a
1442 surprise which otherwise can catch people out.
1444 Removed extraneous trailing space in the value of the
1445 DNSMASQ_TIME_REMAINING DNSMASQ_LEASE_LENGTH and
1446 DNSMASQ_LEASE_EXPIRES environment variables. Thanks to
1447 Gildas Le Nadan for spotting this.
1449 Provide the network-id tags for a DHCP transaction to
1450 the lease-change script in the environment variable
1451 DNSMASQ_TAGS. A good suggestion from Gildas Le Nadan.
1453 Add support for RFC3925 "Vendor-Identifying Vendor
1454 Options". The syntax looks like this:
1455 --dhcp-option=vi-encap:<enterprise number>, .........
1457 Add support to --dhcp-match to allow matching against
1458 RFC3925 "Vendor-Identifying Vendor Classes". The syntax
1459 looks like this:
1460 --dhcp-match=tag,vi-encap<enterprise number>, <value>
1462 Add some application specific code to assist in
1463 implementing the Broadband forum TR069 CPE-WAN
1464 specification. The details are in contrib/CPE-WAN/README
1466 Increase the default DNS packet size limit to 4096, as
1467 recommended by RFC5625 section 4.4.3. This can be
1468 reconfigured using --edns-packet-max if needed. Thanks to
1469 Francis Dupont for pointing this out.
1471 Rewrite query-ids even for TSIG signed packets, since
1472 this is allowed by RFC5625 section 4.5.
1474 Use getopt_long by default on OS X. It has been supported
1475 since version 10.3.0. Thanks to Arek Dreyer for spotting
1476 this.
1478 Added up-to-date startup configuration for MacOSX/launchd
1479 in contrib/MacOSX-launchd. Thanks to Arek Dreyer for
1480 providing this.
1482 Fix link error when including Dbus but excluding DHCP.
1483 Thanks to Oschtan for the bug report.
1485 Updated French translation. Thanks to Gildas Le Nadan.
1487 Updated Polish translation. Thanks to Jan Psota.
1489 Updated Spanish translation. Thanks to Chris Chatham.
1491 Fixed confusion about domains, when looking up DHCP hosts
1492 in /etc/hosts. This could cause spurious "Ignoring
1493 domain..." messages. Thanks to Fedor Kozhevnikov for
1494 finding and analysing the problem.
1497 version 2.51
1498 Add support for internationalised DNS. Non-ASCII characters
1499 in domain names found in /etc/hosts, /etc/ethers and
1500 /etc/dnsmasq.conf will be correctly handled by translation to
1501 punycode, as specified in RFC3490. This function is only
1502 available if dnsmasq is compiled with internationalisation
1503 support, and adds a dependency on GNU libidn. Without i18n
1504 support, dnsmasq continues to be compilable with just
1505 standard tools. Thanks to Yves Dorfsman for the
1506 suggestion.
1508 Add two more environment variables for lease-change scripts:
1509 First, DNSMASQ_SUPPLIED_HOSTNAME; this is set to the hostname
1510 supplied by a client, even if the actual hostname used is
1511 over-ridden by dhcp-host or dhcp-ignore-names directives.
1512 Also DNSMASQ_RELAY_ADDRESS which gives the address of
1513 a DHCP relay, if used.
1514 Suggestions from Michael Rack.
1516 Fix regression which broke echo of relay-agent
1517 options. Thanks to Michael Rack for spotting this.
1519 Don't treat option 67 as being interchangeable with
1520 dhcp-boot parameters if it's specified as
1521 dhcp-option-force.
1523 Make the code to call scripts on lease-change compile-time
1524 optional. It can be switched off by editing src/config.h
1525 or building with "make COPTS=-DNO_SCRIPT".
1527 Make the TFTP server cope with filenames from Windows/DOS
1528 which use '\' as pathname separator. Thanks to Ralf for
1529 the patch.
1531 Updated Polish translation. Thanks to Jan Psota.
1533 Warn if an IP address is duplicated in /etc/ethers. Thanks
1534 to Felix Schwarz for pointing this out.
1536 Teach --conf-dir to take an option list of file suffices
1537 which will be ignored when scanning the directory. Useful
1538 for backup files etc. Thanks to Helmut Hullen for the
1539 suggestion.
1541 Add new DHCP option named tftpserver-address, which
1542 corresponds to the third argument of dhcp-boot. This
1543 allows the complete functionality of dhcp-boot to be
1544 replicated with dhcp-option. Useful when using
1545 dhcp-optsfile.
1547 Test which upstream nameserver to use every 10 seconds
1548 or 50 queries and not just when a query times out and
1549 is retried. This should improve performance when there
1550 is a slow nameserver in the list. Thanks to Joe for the
1551 suggestion.
1553 Don't do any PXE processing, even for clients with the
1554 correct vendorclass, unless at least one pxe-prompt or
1555 pxe-service option is given. This stops dnsmasq
1556 interfering with proxy PXE subsystems when it is just
1557 the DHCP server. Thanks to Spencer Clark for spotting this.
1559 Limit the blocksize used for TFTP transfers to a value
1560 which avoids packet fragmentation, based on the MTU of the
1561 local interface. Many netboot ROMs can't cope with
1562 fragmented packets.
1564 Honour dhcp-ignore configuration for PXE and proxy-PXE
1565 requests. Thanks to Niels Basjes for the bug report.
1567 Updated French translation. Thanks to Gildas Le Nadan.
1570 version 2.50
1571 Fix security problem which allowed any host permitted to
1572 do TFTP to possibly compromise dnsmasq by remote buffer
1573 overflow when TFTP enabled. Thanks to Core Security
1574 Technologies and Iván Arce, Pablo Hernán Jorge, Alejandro
1575 Pablo Rodriguez, MartÃn Coco, Alberto Soliño Testa and
1576 Pablo Annetta. This problem has Bugtraq id: 36121
1577 and CVE: 2009-2957
1579 Fix a problem which allowed a malicious TFTP client to
1580 crash dnsmasq. Thanks to Steve Grubb at Red Hat for
1581 spotting this. This problem has Bugtraq id: 36120 and
1582 CVE: 2009-2958
1585 version 2.49
1586 Fix regression in 2.48 which disables the lease-change
1587 script. Thanks to Jose Luis Duran for spotting this.
1589 Log TFTP "file not found" errors. These were not logged,
1590 since a normal PXELinux boot generates many of them, but
1591 the lack of the messages seems to be more confusing than
1592 routinely seeing them when there is no real error.
1594 Update Spanish translation. Thanks to Chris Chatham.
1597 version 2.48
1598 Archived the extensive, backwards, changelog to
1599 CHANGELOG.archive. The current changelog now runs from
1600 version 2.43 and runs conventionally.
1602 Fixed bug which broke binding of servers to physical
1603 interfaces when interface names were longer than four
1604 characters. Thanks to MURASE Katsunori for the patch.
1606 Fixed netlink code to check that messages come from the
1607 correct source, and not another userspace process. Thanks
1608 to Steve Grubb for the patch.
1610 Maintainability drive: removed bug and missing feature
1611 workarounds for some old platforms. Solaris 9, OpenBSD
1612 older than 4.1, Glibc older than 2.2, Linux 2.2.x and
1613 DBus older than 1.1.x are no longer supported.
1615 Don't read included configuration files more than once:
1616 allows complex configuration structures without problems.
1618 Mark log messages from the various subsystems in dnsmasq:
1619 messages from the DHCP subsystem now have the ident string
1620 "dnsmasq-dhcp" and messages from TFTP have ident
1621 "dnsmasq-tftp". Thanks to Olaf Westrik for the patch.
1623 Fix possible infinite DHCP protocol loop when an IP
1624 address nailed to a hostname (not a MAC address) and a
1625 host sometimes provides the name, sometimes not.
1627 Allow --addn-hosts to take a directory: all the files
1628 in the directory are read. Thanks to Phil Cornelius for
1629 the suggestion.
1631 Support --bridge-interface on all platforms, not just BSD.
1633 Added support for advanced PXE functions. It's now
1634 possible to define a prompt and menu options which will
1635 be displayed when a client PXE boots. It's also possible to
1636 hand-off booting to other boot servers. Proxy-DHCP, where
1637 dnsmasq just supplies the PXE information and another DHCP
1638 server does address allocation, is also allowed. See the
1639 --pxe-prompt and --pxe-service keywords. Thanks to
1640 Alkis Georgopoulos for the suggestion and Guilherme Moro
1641 and Michael Brown for assistance.
1643 Improvements to DHCP logging. Thanks to Tom Metro for
1644 useful suggestions.
1646 Add ability to build dnsmasq without DHCP support. To do
1647 this, edit src/config.h or build with
1648 "make COPTS=-DNO_DHCP". Thanks to Mahavir Jain for the patch.
1650 Added --test command-line switch - syntax check
1651 configuration files only.
1653 Updated French translation. Thanks to Gildas Le Nadan.
1656 version 2.47
1657 Updated French translation. Thanks to Gildas Le Nadan.
1659 Fixed interface enumeration code to work on NetBSD
1660 5.0. Thanks to Roy Marples for the patch.
1662 Updated config.h to use the same location for the lease
1663 file on NetBSD as the other *BSD variants. Also allow
1664 LEASEFILE and CONFFILE symbols to be overriden in CFLAGS.
1666 Handle duplicate address detection on IPv6 more
1667 intelligently. In IPv6, an interface can have an address
1668 which is not usable, because it is still undergoing DAD
1669 (such addresses are marked "tentative"). Attempting to
1670 bind to an address in this state returns an error,
1671 EADDRNOTAVAIL. Previously, on getting such an error,
1672 dnsmasq would silently abandon the address, and never
1673 listen on it. Now, it retries once per second for 20
1674 seconds before generating a fatal error. 20 seconds should
1675 be long enough for any DAD process to complete, but can be
1676 adjusted in src/config.h if necessary. Thanks to Martin
1677 Krafft for the bug report.
1679 Add DBus introspection. Patch from Jeremy Laine.
1681 Update Dbus configuration file. Patch from Colin Walters.
1682 Fix for this bug:
1683 http://bugs.freedesktop.org/show_bug.cgi?id=18961
1685 Support arbitrarily encapsulated DHCP options, suggestion
1686 and initial patch from Samium Gromoff. This is useful for
1687 (eg) gPXE, which expect all its private options to be
1688 encapsulated inside a single option 175. So, eg,
1690 dhcp-option = encap:175, 190, "iscsi-client0"
1691 dhcp-option = encap:175, 191, "iscsi-client0-secret"
1693 will provide iSCSI parameters to gPXE.
1695 Enhance --dhcp-match to allow testing of the contents of a
1696 client-sent option, as well as its presence. This
1697 application in mind for this is RFC 4578
1698 client-architecture specifiers, but it's generally useful.
1699 Joey Korkames suggested the enhancement.
1701 Move from using the IP_XMIT_IF ioctl to IP_BOUND_IF on
1702 OpenSolaris. Thanks to Bastian Machek for the heads-up.
1704 No longer complain about blank lines in
1705 /etc/ethers. Thanks to Jon Nelson for the patch.
1707 Fix binding of servers to physical devices, eg
1708 --server=/domain/1.2.3.4@eth0 which was broken from 2.43
1709 onwards unless --query-port=0 set. Thanks to Peter Naulls
1710 for the bug report.
1712 Reply to DHCPINFORM requests even when the supplied ciaddr
1713 doesn't fall in any dhcp-range. In this case it's not
1714 possible to supply a complete configuration, but
1715 individually-configured options (eg PAC) may be useful.
1717 Allow the source address of an alias to be a range:
1718 --alias=192.168.0.0,10.0.0.0,255.255.255.0 maps the whole
1719 subnet 192.168.0.0->192.168.0.255 to 10.0.0.0->10.0.0.255,
1720 as before.
1721 --alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
1722 maps only the 192.168.0.10->192.168.0.40 region. Thanks to
1723 Ib Uhrskov for the suggestion.
1725 Don't dynamically allocate DHCP addresses which may break
1726 Windows. Addresses which end in .255 or .0 are broken in
1727 Windows even when using supernetting.
1728 --dhcp-range=192.168.0.1,192.168.1.254,255,255,254.0 means
1729 192.168.0.255 is a valid IP address, but not for Windows.
1730 See Microsoft KB281579. We therefore no longer allocate
1731 these addresses to avoid hard-to-diagnose problems.
1733 Update Polish translation. Thanks to Jan Psota.
1735 Delete the PID-file when dnsmasq shuts down. Note that by
1736 this time, dnsmasq is normally not running as root, so
1737 this will fail if the PID-file is stored in a root-owned
1738 directory; such failure is silently ignored. To take
1739 advantage of this feature, the PID-file must be stored in a
1740 directory owned and write-able by the user running
1741 dnsmasq.
1744 version 2.46
1745 Allow --bootp-dynamic to take a netid tag, so that it may
1746 be selectively enabled. Thanks to Olaf Westrik for the
1747 suggestion.
1749 Remove ISC-leasefile reading code. This has been
1750 deprecated for a long time, and last time I removed it, it
1751 ended up going back by request of one user. This time,
1752 it's gone for good; otherwise it would need to be
1753 re-worked to support multiple domains (see below).
1755 Support DHCP clients in multiple DNS domains. This is a
1756 long-standing request. Clients are assigned to a domain
1757 based in their IP address.
1759 Add --dhcp-fqdn flag, which changes behaviour if DNS names
1760 assigned to DHCP clients. When this is set, there must be
1761 a domain associated with each client, and only
1762 fully-qualified domain names are added to the DNS. The
1763 advantage is that the only the FQDN needs to be unique,
1764 so that two or more DHCP clients can share a hostname, as
1765 long as they are in different domains.
1767 Set environment variable DNSMASQ_DOMAIN when invoking
1768 lease-change script. This may be useful information to
1769 have now that it's variable.
1771 Tighten up data-checking code for DNS packet
1772 handling. Thanks to Steve Dodd who found certain illegal
1773 packets which could crash dnsmasq. No memory overwrite was
1774 possible, so this is not a security issue beyond the DoS
1775 potential.
1777 Update example config dhcp option 47, the previous
1778 suggestion generated an illegal, zero-length,
1779 option. Thanks to Matthias Andree for finding this.
1781 Rewrite hosts-file reading code to remove the limit of
1782 1024 characters per line. John C Meuser found this.
1784 Create a net-id tag with the name of the interface on
1785 which the DHCP request was received.
1787 Fixed minor memory leak in DBus code, thanks to Jeremy
1788 Laine for the patch.
1790 Emit DBus signals as the DHCP lease database
1791 changes. Thanks to Jeremy Laine for the patch.
1793 Allow for more that one MAC address in a dhcp-host
1794 line. This configuration tells dnsmasq that it's OK to
1795 abandon a DHCP lease of the fixed address to one MAC
1796 address, if another MAC address in the dhcp-host statement
1797 asks for an address. This is useful to give a fixed
1798 address to a host which has two network interfaces
1799 (say, a laptop with wired and wireless interfaces.)
1800 It's very important to ensure that only one interface
1801 at a time is up, since dnsmasq abandons the first lease
1802 and re-uses the address before the leased time has
1803 elapsed. John Gray suggested this.
1805 Tweak the response to a DHCP request packet with a wrong
1806 server-id when --dhcp-authoritative is set; dnsmasq now
1807 returns a DHCPNAK, rather than silently ignoring the
1808 packet. Thanks to Chris Marget for spotting this
1809 improvement.
1811 Add --cname option. This provides a limited alias
1812 function, usable for DHCP names. Thanks to AJ Weber for
1813 suggestions on this.
1815 Updated contrib/webmin with latest version from Neil
1816 Fisher.
1818 Updated Polish translation. Thanks to Jan Psota.
1820 Correct the text names for DHCP options 64 and 65 to be
1821 "nis+-domain" and "nis+-servers".
1823 Updated Spanish translation. Thanks to Chris Chatham.
1825 Force re-reading of /etc/resolv.conf when an "interface
1826 up" event occurs.
1829 version 2.45
1830 Fix total DNS failure in release 2.44 unless --min-port
1831 specified. Thanks to Steven Barth and Grant Coady for
1832 bugreport. Also reject out-of-range port spec, which could
1833 break things too: suggestion from Gilles Espinasse.
1836 version 2.44
1837 Fix crash when unknown client attempts to renew a DHCP
1838 lease, problem introduced in version 2.43. Thanks to
1839 Carlos Carvalho for help chasing this down.
1841 Fix potential crash when a host which doesn't have a lease
1842 does DHCPINFORM. Again introduced in 2.43. This bug has
1843 never been reported in the wild.
1845 Fix crash in netlink code introduced in 2.43. Thanks to
1846 Jean Wolter for finding this.
1848 Change implementation of min_port to work even if min-port
1849 is large.
1851 Patch to enable compilation of latest Mac OS X. Thanks to
1852 David Gilman.
1854 Update Spanish translation. Thanks to Christopher Chatham.
1857 version 2.43
1858 Updated Polish translation. Thanks to Jan Psota.
1860 Flag errors when configuration options are repeated
1861 illegally.
1863 Further tweaks for GNU/kFreeBSD
1865 Add --no-wrap to msgmerge call - provides nicer .po file
1866 format.
1868 Honour lease-time spec in dhcp-host lines even for
1869 BOOTP. The user is assumed to known what they are doing in
1870 this case. (Hosts without the time spec still get infinite
1871 leases for BOOTP, over-riding the default in the
1872 dhcp-range.) Thanks to Peter Katzmann for uncovering this.
1874 Fix problem matching relay-agent ids. Thanks to Michael
1875 Rack for the bug report.
1877 Add --naptr-record option. Suggestion from Johan
1878 Bergquist.
1880 Implement RFC 5107 server-id-override DHCP relay agent
1881 option.
1883 Apply patches from Stefan Kruger for compilation on
1884 Solaris 10 under Sun studio.
1886 Yet more tweaking of Linux capability code, to suppress
1887 pointless wingeing from kernel 2.6.25 and above.
1889 Improve error checking during startup. Previously, some
1890 errors which occurred during startup would be worked
1891 around, with dnsmasq still starting up. Some were logged,
1892 some silent. Now, they all cause a fatal error and dnsmasq
1893 terminates with a non-zero exit code. The errors are those
1894 associated with changing uid and gid, setting process
1895 capabilities and writing the pidfile. Thanks to Uwe
1896 Gansert and the Suse security team for pointing out
1897 this improvement, and Bill Reimers for good implementation
1898 suggestions.
1900 Provide NO_LARGEFILE compile option to switch off largefile
1901 support when compiling against versions of uclibc which
1902 don't support it. Thanks to Stephane Billiart for the patch.
1904 Implement random source ports for interactions with
1905 upstream nameservers. New spoofing attacks have been found
1906 against nameservers which do not do this, though it is not
1907 clear if dnsmasq is vulnerable, since to doesn't implement
1908 recursion. By default dnsmasq will now use a different
1909 source port (and socket) for each query it sends
1910 upstream. This behaviour can suppressed using the
1911 --query-port option, and the old default behaviour
1912 restored using --query-port=0. Explicit source-port
1913 specifications in --server configs are still honoured.
1915 Replace the random number generator, for better
1916 security. On most BSD systems, dnsmasq uses the
1917 arc4random() RNG, which is secure, but on other platforms,
1918 it relied on the C-library RNG, which may be
1919 guessable and therefore allow spoofing. This release
1920 replaces the libc RNG with the SURF RNG, from Daniel
1921 J. Berstein's DJBDNS package.
1923 Don't attempt to change user or group or set capabilities
1924 if dnsmasq is run as a non-root user. Without this, the
1925 change from soft to hard errors when these fail causes
1926 problems for non-root daemons listening on high
1927 ports. Thanks to Patrick McLean for spotting this.
1929 Updated French translation. Thanks to Gildas Le Nadan.
1932 version 2.42
1933 The changelog for version 2.42 and earlier is
1934 available in CHANGELOG.archive.