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1 version 2.66
2 Add the ability to act as an authoritative DNS
3 server. Dnsmasq can now answer queries from the wider 'net
4 with local data, as long as the correct NS records are set
5 up. Only local data is provided, to avoid creating an open
6 DNS relay. Zone transfer is supported, to allow secondary
7 servers to be configured.
8
9 Add "constructed DHCP ranges" for DHCPv6. This is intended
10 for IPv6 routers which get prefixes dynamically via prefix
11 delegation. With suitable configuration, stateful DHCPv6
12 and RA can happen automatically as prefixes are delegated
13 and then deprecated, without having to re-write the
14 dnsmasq configuration file or restart the daemon. Thanks to
15 Steven Barth for extensive testing and development work on
16 this idea.
17
18 Fix crash on startup on Solaris 11. Regression probably
19 introduced in 2.61. Thanks to Geoff Johnstone for the
20 patch.
21
22 Add code to make behaviour for TCP DNS requests that same
23 as for UDP requests, when a request arrives for an allowed
24 address, but via a banned interface. This change is only
25 active on Linux, since the relevant API is missing (AFAIK)
26 on other platforms. Many thanks to Tomas Hozza for
27 spotting the problem, and doing invaluable discovery of
28 the obscure and undocumented API required for the solution.
29
30 Don't send the default DHCP option advertising dnsmasq as
31 the local DNS server if dnsmasq is configured to not act
32 as DNS server, or it's configured to a non-standard port.
33
34 Add DNSMASQ_CIRCUIT_ID, DNSMASQ_SUBCRIBER_ID,
35 DNSMASQ_REMOTE_ID variables to the environment of the
36 lease-change script (and the corresponding Lua). These hold
37 information inserted into the DHCP request by a DHCP relay
38 agent. Thanks to Lakefield Communications for providing a
39 bounty for this addition.
40
41 Fixed crash, introduced in 2.64, whilst handling DHCPv6
42 information-requests with some common configurations.
43 Thanks to Robert M. Albrecht for the bug report and
44 chasing the problem.
45
46 Add --ipset option. Thanks to Jason A. Donenfeld for the
47 patch.
48
49 Don't erroneously reject some option names in --dhcp-match
50 options. Thanks to Benedikt Hochstrasser for the bug report.
51
52 Allow a trailing '*' wildcard in all interface-name
53 configurations. Thanks to Christian Parpart for the patch.
54
55 Handle the situation where libc headers define
56 SO_REUSEPORT, but the kernel in use doesn't, to cope with
57 the introduction of this option to Linux. Thanks to Rich
58 Felker for the bug report.
59
60
61 version 2.65
62 Fix regression which broke forwarding of queries sent via
63 TCP which are not for A and AAAA and which were directed to
64 non-default servers. Thanks to Niax for the bug report.
65
66 Fix failure to build with DHCP support excluded. Thanks to
67 Gustavo Zacarias for the patch.
68
69 Fix nasty regression in 2.64 which completely broke cacheing.
70
71
72 version 2.64
73 Handle DHCP FQDN options with all flag bits zero and
74 --dhcp-client-update set. Thanks to Bernd Krumbroeck for
75 spotting the problem.
76
77 Finesse the check for /etc/hosts names which conflict with
78 DHCP names. Previously a name/address pair in /etc/hosts
79 which didn't match the name/address of a DHCP lease would
80 generate a warning. Now that only happesn if there is not
81 also a match. This allows multiple addresses for a name in
82 /etc/hosts with one of them assigned via DHCP.
83
84 Fix broken vendor-option processing for BOOTP. Thanks to
85 Hans-Joachim Baader for the bug report.
86
87 Don't report spurious netlink errors, regression in
88 2.63. Thanks to Vladislav Grishenko for the patch.
89
90 Flag DHCP or DHCPv6 in starup logging. Thanks to
91 Vladislav Grishenko for the patch.
92
93 Add SetServersEx method in DBus interface. Thanks to Dan
94 Williams for the patch.
95
96 Add SetDomainServers method in DBus interface. Thanks to
97 Roy Marples for the patch.
98
99 Fix build with later Lua libraries. Thansk to Cristian
100 Rodriguez for the patch.
101
102 Add --max-cache-ttl option. Thanks to Dennis Kaarsemaker
103 for the patch.
104
105 Fix breakage of --host-record parsing, resulting in
106 infinte loop at startup. Regression in 2.63. Thanks to
107 Haim Gelfenbeyn for spotting this.
108
109 Set SO_REUSEADDRESS and SO_V6ONLY options on the DHCPv6
110 socket, this allows multiple instances of dnsmasq on a
111 single machine, in the same way as for DHCPv4. Thanks to
112 Gene Czarcinski and Vladislav Grishenko for work on this.
113
114 Fix DHCPv6 to do access control correctly when it's
115 configured with --listen-address. Thanks to
116 Gene Czarcinski for sorting this out.
117
118 Add a "wildcard" dhcp-range which works for any IPv6
119 subnet, --dhcp-range=::,static Useful for Stateless
120 DHCPv6. Thanks to Vladislav Grishenko for the patch.
121
122 Don't include lease-time in DHCPACK replies to DHCPINFORM
123 queries, since RFC-2131 says we shouldn't. Thanks to
124 Wouter Ibens for pointing this out.
125
126 Makefile tweak to do dependency checking on header files.
127 Thanks to Johan Peeters for the patch.
128
129 Check interface for outgoing unsolicited router
130 advertisements, rather than relying on interface address
131 configuration. Thanks to Gene Czarinski for the patch.
132
133 Handle better attempts to transmit on interfaces which are
134 still doing DAD, and specifically do not just transmit
135 without setting source address and interface, since this
136 can cause very puzzling effects when a router
137 advertisement goes astray. Thanks again to Gene Czarinski.
138
139 Get RA timers right when there is more than one
140 dhcp-range on a subnet.
141
142
143 version 2.63
144 Do duplicate dhcp-host address check in --test mode.
145
146 Check that tftp-root directories are accessible before
147 start-up. Thanks to Daniel Veillard for the initial patch.
148
149 Allow more than one --tfp-root flag. The per-interface
150 stuff is pointless without that.
151
152 Add --bind-dynamic. A hybrid mode between the default and
153 --bind-interfaces which copes with dynamically created
154 interfaces.
155
156 A couple of fixes to the build system for Android. Thanks
157 to Metin Kaya for the patches.
158
159 Remove the interface:<interface> argument in --dhcp-range, and
160 the interface argument to --enable-tftp. These were a
161 still-born attempt to allow automatic isolated
162 configuration by libvirt, but have never (to my knowledge)
163 been used, had very strange semantics, and have been
164 superceded by other mechanisms.
165
166 Fixed bug logging filenames when duplicate dhcp-host
167 addresses are found. Thanks to John Hanks for the patch.
168
169 Fix regression in 2.61 which broke caching of CNAME
170 chains. Thanks to Atul Gupta for the bug report.
171
172 Allow the target of a --cname flag to be another --cname.
173
174 Teach DHCPv6 about the RFC 4242 information-refresh-time
175 option, and add parsing if the minutes, hours and days
176 format for options. Thanks to Francois-Xavier Le Bail for
177 the suggestion.
178
179 Allow "w" (for week) as multiplier in lease times, as well
180 as seconds, minutes, hours and days. Álvaro Gámez Machado
181 spotted the ommission.
182
183 Update French translation. Thanks to Gildas Le Nadan.
184
185 Allow a DBus service name to be given with --enable-dbus
186 which overrides the default,
187 uk.org.thekelleys.dnsmasq. Thanks to Mathieu
188 Trudel-Lapierre for the patch.
189
190 Set the "prefix on-link" bit in Router
191 Advertisements. Thanks to Gui Iribarren for the patch.
192
193
194 version 2.62
195 Update German translation. Thanks to Conrad Kostecki.
196
197 Cope with router-solict packets wich don't have a valid
198 source address. Thanks to Vladislav Grishenko for the patch.
199
200 Fixed bug which caused missing periodic router
201 advertisements with some configurations. Thanks to
202 Vladislav Grishenko for the patch.
203
204 Fixed bug which broke DHCPv6/RA with prefix lengths
205 which are not divisible by 8. Thanks to Andre Coetzee
206 for spotting this.
207
208 Fix non-response to router-solicitations when
209 router-advertisement configured, but DHCPv6 not
210 configured. Thanks to Marien Zwart for the patch.
211
212 Add --dns-rr, to allow arbitrary DNS resource records.
213
214 Fixed bug which broke RA scheduling when an interface had
215 two addresses in the same network. Thanks to Jim Bos for
216 his help nailing this.
217
218 version 2.61
219 Re-write interface discovery code on *BSD to use
220 getifaddrs. This is more portable, more straightforward,
221 and allows us to find the prefix length for IPv6
222 addresses.
223
224 Add ra-names, ra-stateless and slaac keywords for DHCPv6.
225 Dnsmasq can now synthesise AAAA records for dual-stack
226 hosts which get IPv6 addresses via SLAAC. It is also now
227 possible to use SLAAC and stateless DHCPv6, and to
228 tell clients to use SLAAC addresses as well as DHCP ones.
229 Thanks to Dave Taht for help with this.
230
231 Add --dhcp-duid to allow DUID-EN uids to be used.
232
233 Explicity send DHCPv6 replies to the correct port, instead
234 of relying on clients to send requests with the correct
235 source address, since at least one client in the wild gets
236 this wrong. Thanks to Conrad Kostecki for help tracking
237 this down.
238
239 Send a preference value of 255 in DHCPv6 replies when
240 --dhcp-authoritative is in effect. This tells clients not
241 to wait around for other DHCP servers.
242
243 Better logging of DHCPv6 options.
244
245 Add --host-record. Thanks to Rob Zwissler for the
246 suggestion.
247
248 Invoke the DHCP script with action "tftp" when a TFTP file
249 transfer completes. The size of the file, address to which
250 it was sent and complete pathname are supplied. Note that
251 version 2.60 introduced some script incompatibilties
252 associated with DHCPv6, and this is a further change. To
253 be safe, scripts should ignore unknown actions, and if
254 not IPv6-aware, should exit if the environment
255 variable DNSMASQ_IAID is set. The use-case for this is
256 to track netboot/install. Suggestion from Shantanu
257 Gadgil.
258
259 Update contrib/port-forward/dnsmasq-portforward to reflect
260 the above.
261
262 Set the environment variable DNSMASQ_LOG_DHCP when running
263 the script id --log-dhcp is in effect, so that script can
264 taylor their logging verbosity. Suggestion from Malte
265 Forkel.
266
267 Arrange that addresses specified with --listen-address
268 work even if there is no interface carrying the
269 address. This is chiefly useful for IPv4 loopback
270 addresses, where any address in 127.0.0.0/8 is a valid
271 loopback address, but normally only 127.0.0.1 appears on
272 the lo interface. Thanks to Mathieu Trudel-Lapierre for
273 the idea and initial patch.
274
275 Fix crash, introduced in 2.60, when a DHCPINFORM is
276 received from a network which has no valid dhcp-range.
277 Thanks to Stephane Glondu for the bug report.
278
279 Add a new DHCP lease time keyword, "deprecated" for
280 --dhcp-range. This is only valid for IPv6, and sets the
281 preffered lease time for both DHCP and RA to zero. The
282 effect is that clients can continue to use the address
283 for existing connections, but new connections will use
284 other addresses, if they exist. This makes hitless
285 renumbering at least possible.
286
287 Fix bug in address6_available() which caused DHCPv6 lease
288 aquisition to fail if more than one dhcp-range in use.
289
290 Provide RDNSS and DNSSL data in router advertisements,
291 using the settings provided for DHCP options
292 option6:domain-search and option6:dns-server.
293
294 Tweak logo/favicon.ico to add some transparency. Thanks to
295 SamLT for work on this.
296
297 Don't cache data from non-recursive nameservers, since it
298 may erroneously look like a valid CNAME to a non-exitant
299 name. Thanks to Ben Winslow for finding this.
300
301 Call SO_BINDTODEVICE on the DHCP socket(s) when doing DHCP
302 on exactly one interface and --bind-interfaces is set. This
303 makes the OpenStack use-case of one dnsmasq per virtual
304 interface work. This is only available on Linux; it's not
305 supported on other platforms. Thanks to Vishvananda Ishaya
306 and the OpenStack team for the suggestion.
307
308 Updated French translation. Thanks to Gildas Le Nadan.
309
310 Give correct from-cache answers to explict CNAME queries.
311 Thanks to Rob Zwissler for spotting this.
312
313 Add --tftp-lowercase option. Thanks to Oliver Rath for the
314 patch.
315
316 Ensure that the DBus DhcpLeaseUpdated events are generated
317 when a lease goes through INIT_REBOOT state, even if the
318 dhcp-script is not in use. Thanks to Antoaneta-Ecaterina
319 Ene for the patch.
320
321 Fix failure of TFTP over IPv4 on OpenBSD platform. Thanks
322 to Brad Smith for spotting this.
323
324
325 version 2.60
326 Fix compilation problem in Mac OS X Lion. Thanks to Olaf
327 Flebbe for the patch.
328
329 Fix DHCP when using --listen-address with an IP address
330 which is not the primary address of an interface.
331
332 Add --dhcp-client-update option.
333
334 Add Lua integration. Dnsmasq can now execute a DHCP
335 lease-change script written in Lua. This needs to be
336 enabled at compile time by setting HAVE_LUASCRIPT in
337 src/config.h or running "make COPTS=-DHAVE_LUASCRIPT"
338 Thanks to Jan-Piet Mens for the idea and proof-of-concept
339 implementation.
340
341 Tidied src/config.h to distinguish between
342 platform-dependent compile-time options which are selected
343 automatically, and builder-selectable compile time
344 options. Document the latter better, and describe how to
345 set them from the make command line.
346
347 Tidied up IPPROTO_IP/SOL_IP (and IPv6 equivalent)
348 confusion. IPPROTO_IP works everywhere now.
349
350 Set TOS on DHCP sockets, this improves things on busy
351 wireless networks. Thanks to Dave Taht for the patch.
352
353 Determine VERSION automatically based on git magic:
354 release tags or hash values.
355
356 Improve start-up speed when reading large hosts files
357 containing many distinct addresses.
358
359 Fix problem if dnsmasq is started without the stdin,
360 stdout and stderr file descriptors open. This can manifest
361 itself as 100% CPU use. Thanks to Chris Moore for finding
362 this.
363
364 Fix shell-scripting bug in bld/pkg-wrapper. Thanks to
365 Mark Mitchell for the patch.
366
367 Allow the TFP server or boot server in --pxe-service, to
368 be a domain name instead of an IP address. This allows for
369 round-robin to multiple servers, in the same way as
370 --dhcp-boot. A good suggestion from Cristiano Cumer.
371
372 Support BUILDDIR variable in the Makefile. Allows builds
373 for multiple archs from the same source tree with eg.
374 make BUILDDIR=linux (relative to dnsmasq tree)
375 make BUILDDIR=/tmp/openbsd (absolute path)
376 If BUILDDIR is not set, compilation happens in the src
377 directory, as before. Suggestion from Mark Mitchell.
378
379 Support DHCPv6. Support is there for the sort of things
380 the existing v4 server does, including tags, options,
381 static addresses and relay support. Missing is prefix
382 delegation, which is probably not required in the dnsmasq
383 niche, and an easy way to accept prefix delegations from
384 an upstream DHCPv6 server, which is. Future plans include
385 support for DHCPv6 router option and MAC address option
386 (to make selecting clients by MAC address work like IPv4).
387 These will be added as the standards mature.
388 This code has been tested, but this is the first release,
389 so don't bet the farm on it just yet. Many thanks to all
390 testers who have got it this far.
391
392 Support IPv6 router advertisements. This is a
393 simple-minded implementation, aimed at providing the
394 vestigial RA needed to go alongside IPv6. Is picks up
395 configuration from the DHCPv6 conf, and should just need
396 enabling with --enable-ra.
397
398 Fix long-standing wrinkle with --localise-queries that
399 could result in wrong answers when DNS packets arrive
400 via an interface other than the expected one. Thanks to
401 Lorenzo Milesi and John Hanks for spotting this one.
402
403 Update French translation. Thanks to Gildas Le Nadan.
404
405 Update Polish translation. Thanks to Jan Psota.
406
407
408 version 2.59
409 Fix regression in 2.58 which caused failure to start up
410 with some combinations of dnsmasq config and IPv6 kernel
411 network config. Thanks to Brielle Bruns for the bug
412 report.
413
414 Improve dnsmasq's behaviour when network interfaces are
415 still doing duplicate address detection (DAD). Previously,
416 dnsmasq would wait up to 20 seconds at start-up for the
417 DAD state to terminate. This is broken for bridge
418 interfaces on recent Linux kernels, which don't start DAD
419 until the bridge comes up, and so can take arbitrary
420 time. The new behaviour lets dnsmasq poll for an arbitrary
421 time whilst providing service on other interfaces. Thanks
422 to Stephen Hemminger for pointing out the problem.
423
424
425 version 2.58
426 Provide a definition of the SA_SIZE macro where it's
427 missing. Fixes build failure on openBSD.
428
429 Don't include a zero terminator at the end of messages
430 sent to /dev/log when /dev/log is a datagram socket.
431 Thanks to Didier Rabound for spotting the problem.
432
433 Add --dhcp-sequential-ip flag, to force allocation of IP
434 addresses in ascending order. Note that the default
435 pseudo-random mode is in general better but some
436 server-deployment applications need this.
437
438 Fix problem where a server-id of 0.0.0.0 is sent to a
439 client when a dhcp-relay is in use if a client renews a
440 lease after dnsmasq restart and before any clients on the
441 subnet get a new lease. Thanks to Mike Ruiz for assistance
442 in chasing this one down.
443
444 Don't return NXDOMAIN to an AAAA query if we have CNAME
445 which points to an A record only: NODATA is the correct
446 reply in this case. Thanks to Tom Fernandes for spotting
447 the problem.
448
449 Relax the need to supply a netmask in --dhcp-range for
450 networks which use a DHCP relay. Whilst this is still
451 desireable, in the absence of a netmask dnsmasq will use
452 a default based on the class (A, B, or C) of the address.
453 This should at least remove a cause of mysterious failure
454 for people using RFC1918 addresses and relays.
455
456 Add support for Linux conntrack connection marking. If
457 enabled with --conntrack, the connection mark for incoming
458 DNS queries will be copied to the outgoing connections
459 used to answer those queries. This allows clever firewall
460 and accounting stuff. Only available if dnsmasq is
461 compiled with HAVE_CONNTRACK and adds a dependency on
462 libnetfilter-conntrack. Thanks to Ed Wildgoose for the
463 initial idea, testing and sponsorship of this function.
464
465 Provide a sane error message when someone attempts to
466 match a tag in --dhcp-host.
467
468 Tweak the behaviour of --domain-needed, to avoid problems
469 with recursive nameservers downstream of dnsmasq. The new
470 behaviour only stops A and AAAA queries, and returns
471 NODATA rather than NXDOMAIN replies.
472
473 Efficiency fix for very large DHCP configurations, thanks
474 to James Gartrell and Mike Ruiz for help with this.
475
476 Allow the TFTP-server address in --dhcp-boot to be a
477 domain-name which is looked up in /etc/hosts. This can
478 give multiple IP addresses which are used round-robin,
479 thus doing TFTP server load-balancing. Thanks to Sushil
480 Agrawal for the patch.
481
482 When two tagged dhcp-options for a particular option
483 number are both valid, use the one which is valid without
484 a tag from the dhcp-range. Allows overriding of the value
485 of a DHCP option for a particular host as well as
486 per-network values. So
487 --dhcp-range=set:interface1,......
488 --dhcp-host=set:myhost,.....
489 --dhcp-option=tag:interface1,option:nis-domain,"domain1"
490 --dhcp-option=tag:myhost,option:nis-domain,"domain2"
491 will set the NIS-domain to domain1 for hosts in the range, but
492 override that to domain2 for a particular host.
493
494 Fix bug which resulted in truncated files and timeouts for
495 some TFTP transfers. The bug only occurs with netascii
496 transfers and needs an unfortunate relationship between
497 file size, blocksize and the number of newlines in the
498 last block before it manifests itself. Many thanks to
499 Alkis Georgopoulos for spotting the problem and providing
500 a comprehensive test-case.
501
502 Fix regression in TFTP server on *BSD platforms introduced
503 in version 2.56, due to confusion with sockaddr
504 length. Many thanks to Loic Pefferkorn for finding this.
505
506 Support scope-ids in IPv6 addresses of nameservers from
507 /etc/resolv.conf and in --server options. Eg
508 nameserver fe80::202:a412:4512:7bbf%eth0 or
509 server=fe80::202:a412:4512:7bbf%eth0. Thanks to
510 Michael Stapelberg for the suggestion.
511
512 Update Polish translation, thanks to Jan Psota.
513
514 Update French translation. Thanks to Gildas Le Nadan.
515
516
517 version 2.57
518 Add patches to allow build under Android.
519
520 Provide our own header for the DNS protocol, rather than
521 relying on arpa/nameser.h. This has proved more or less
522 defective over the years and the final straw is that it's
523 effectively empty on Android.
524
525 Fix regression in 2.56 which caused hex constants in
526 configuration to be rejected if they contain the '*'
527 wildcard.
528
529 Correct wrong casts of arguments to ctype.h functions,
530 isdigit(), isxdigit() etc. Thanks to Matthias Andree for
531 spotting this.
532
533 Allow build with IDN support independently from i18n.
534 IDN support continues to be included automatically
535 when i18n is included.
536 'make COPTS=-DHAVE_IDN' is the magic incantation.
537
538 Modify check on extraneous command line junk (added in
539 2.56) so that it doesn't complain about extra _empty_
540 arguments. Otherwise this breaks libvirt.
541
542
543 version 2.56
544 Add a patch to allow dnsmasq to get interface names right in a
545 Solaris zone. Thanks to Dj Padzensky for this.
546
547 Improve data-type parsing heuristics so that
548 --dhcp-option=option:domain-search,.
549 treats the value as a string and not an IP address.
550 Thanks to Clemens Fischer for spotting that.
551
552 Add IPv6 support to the TFTP server. Many thanks to Jan
553 'RedBully' Seiffert for the patches.
554
555 Log DNS queries at level LOG_INFO, rather then
556 LOG_DEBUG. This makes things consistent with DHCP
557 logging. Thanks to Adam Pribyl for spotting the problem.
558
559 Ensure that dnsmasq terminates cleanly when using
560 --syslog-async even if it cannot make a connection to the
561 syslogd.
562
563 Add --add-mac option. This is to support currently
564 experimental DNS filtering facilities. Thanks to Benjamin
565 Petrin for the orignal patch.
566
567 Fix bug which meant that tags were ignored in dhcp-range
568 configuration specifying PXE-proxy service. Thanks to
569 Cristiano Cumer for spotting this.
570
571 Raise an error if there is extra junk, not part of an
572 option, on the command line.
573
574 Flag a couple of log messages in cache.c as coming from
575 the DHCP subsystem. Thanks to Olaf Westrik for the patch.
576
577 Omit timestamps from logs when a) logging to stderr and
578 b) --keep-in-forground is set. The logging facility on the
579 other end of stderr can be assumned to supply them. Thanks
580 to John Hallam for the patch.
581
582 Don't complain about strings longer than 255 characters in
583 --txt-record, just split the long strings into 255
584 character chunks instead.
585
586 Fix crash on double-free. This bug can only happen when
587 dhcp-script is in use and then only in rare circumstances
588 triggered by high DHCP transaction rate and a slow
589 script. Thanks to Ferenc Wagner for finding the problem.
590
591 Only log that a file has been sent by TFTP after the
592 transfer has completed succesfully.
593
594 A good suggestion from Ferenc Wagner: extend
595 the --domain option to allow this sort of thing:
596 --domain=thekelleys.org.uk,192.168.0.0/24,local
597 which automatically creates
598 --local=/thekelleys.org.uk/
599 --local=/0.168.192.in-addr.arpa/
600
601 Tighten up syntax checking of hex contants in the config
602 file. Thanks to Fred Damen for spotting this.
603
604 Add dnsmasq logo/icon, contributed by Justin Swift. Many
605 thanks for that.
606
607 Never cache DNS replies which have the 'cd' bit set, or
608 which result from queries forwarded with the 'cd' bit
609 set. The 'cd' bit instructs a DNSSEC validating server
610 upstream to ignore signature failures and return replies
611 anyway. Without this change it's possible to pollute the
612 dnsmasq cache with bad data by making a query with the
613 'cd' bit set and subsequent queries would return this data
614 without its being marked as suspect. Thanks to Anders
615 Kaseorg for pointing out this problem.
616
617 Add --proxy-dnssec flag, for compliance with RFC
618 4035. Dnsmasq will now clear the 'ad' bit in answers returned
619 from upstream validating nameservers unless this option is
620 set.
621
622 Allow a filename of "-" for --conf-file to read
623 stdin. Suggestion from Timothy Redaelli.
624
625 Rotate the order of SRV records in replies, to provide
626 round-robin load balancing when all the priorities are
627 equal. Thanks to Peter McKinney for the suggestion.
628
629 Edit
630 contrib/MacOSX-launchd/uk.org.thekelleys.dnsmasq.plist
631 so that it doesn't log all queries to a file by
632 default. Thanks again to Peter McKinney.
633
634 By default, setting an IPv4 address for a domain but not
635 an IPv6 address causes dnsmasq to return
636 an NODATA reply for IPv6 (or vice-versa). So
637 --address=/google.com/1.2.3.4 stops IPv6 queries for
638 *google.com from being forwarded. Make it possible to
639 override this behaviour by defining the sematics if the
640 same domain appears in both --server and --address.
641 In that case, the --address has priority for the address
642 family in which is appears, but the --server has priority
643 of the address family which doesn't appear in --adddress
644 So:
645 --address=/google.com/1.2.3.4
646 --server=/google.com/#
647 will return 1.2.3.4 for IPv4 queries for *.google.com but
648 forward IPv6 queries to the normal upstream nameserver.
649 Similarly when setting an IPv6 address
650 only this will allow forwarding of IPv4 queries. Thanks to
651 William for pointing out the need for this.
652
653 Allow more than one --dhcp-optsfile and --dhcp-hostsfile
654 and make them understand directories as arguments in the
655 same way as --addn-hosts. Suggestion from John Hanks.
656
657 Ignore rebinding requests for leases we don't know
658 about. Rebind is broadcast, so we might get to overhear a
659 request meant for another DHCP server. NAKing this is
660 wrong. Thanks to Brad D'Hondt for assistance with this.
661
662 Fix cosmetic bug which produced strange output when
663 dumping cache statistics with some configurations. Thanks
664 to Fedor Kozhevnikov for spotting this.
665
666
667 version 2.55
668 Fix crash when /etc/ethers is in use. Thanks to
669 Gianluigi Tiesi for finding this.
670
671 Fix crash in netlink_multicast(). Thanks to Arno Wald for
672 finding this one.
673
674 Allow the empty domain "." in dhcp domain-search (119)
675 options.
676
677
678 version 2.54
679 There is no version 2.54 to avoid confusion with 2.53,
680 which incorrectly identifies itself as 2.54.
681
682
683 version 2.53
684 Fix failure to compile on Debian/kFreeBSD. Thanks to
685 Axel Beckert and Petr Salinger.
686
687 Fix code to avoid scary strict-aliasing warnings
688 generated by gcc 4.4.
689
690 Added FAQ entry warning about DHCP failures with Vista
691 when firewalls block 255.255.255.255.
692
693 Fixed bug which caused bad things to happen if a
694 resolv.conf file which exists is subsequently removed.
695 Thanks to Nikolai Saoukh for the patch.
696
697 Rationalised the DHCP tag system. Every configuration item
698 which can set a tag does so by adding "set:<tag>" and
699 every configuration item which is conditional on a tag is
700 made so by "tag:<tag>". The NOT operator changes to '!',
701 which is a bit more intuitive too. Dhcp-host directives
702 can set more than one tag now. The old '#' NOT,
703 "net:" prefix and no-prefixes are still honoured, so
704 no existing config file needs to be changed, but
705 the documentation and new-style config files should be
706 much less confusing.
707
708 Added --tag-if to allow boolean operations on tags.
709 This allows complicated logic to be clearer and more
710 general. A great suggestion from Richard Voigt.
711
712 Add broadcast/unicast information to DHCP logging.
713
714 Allow --dhcp-broadcast to be unconditional.
715
716 Fixed incorrect behaviour with NOT <tag> conditionals in
717 dhcp-options. Thanks to Max Turkewitz for assistance
718 finding this.
719
720 If we send vendor-class encapsulated options based on the
721 vendor-class supplied by the client, and no explicit
722 vendor-class option is given, echo back the vendor-class
723 from the client.
724
725 Fix bug which stopped dnsmasq from matching both a
726 circuitid and a remoteid. Thanks to Ignacio Bravo for
727 finding this.
728
729 Add --dhcp-proxy, which makes it possible to configure
730 dnsmasq to use a DHCP relay agent as a full proxy, with
731 all DHCP messages passing through the proxy. This is
732 useful if the relay adds extra information to the packets
733 it forwards, but cannot be configured with the RFC 5107
734 server-override option.
735
736 Added interface:<iface name> part to dhcp-range. The
737 semantics of this are very odd at first sight, but it
738 allows a single line of the form
739 dhcp-range=interface:virt0,192.168.0.4,192.168.0.200
740 to be added to dnsmasq configuration which then supplies
741 DHCP and DNS services to that interface, without affecting
742 what services are supplied to other interfaces and
743 irrespective of the existance or lack of
744 interface=<interface>
745 lines elsewhere in the dnsmasq configuration. The idea is
746 that such a line can be added automatically by libvirt
747 or equivalent systems, without disturbing any manual
748 configuration.
749
750 Similarly to the above, allow --enable-tftp=<interface>
751
752 Allow a TFTP root to be set separately for requests via
753 different interfaces, --tftp-root=<path>,<interface>
754
755 Correctly handle and log clashes between CNAMES and
756 DNS names being given to DHCP leases. This fixes a bug
757 which caused nonsense IP addresses to be logged. Thanks to
758 Sergei Zhirikov for finding and analysing the problem.
759
760 Tweak flush_log so as to avoid leaving the log
761 file in non-blocking mode. O_NONBLOCK is a property of the
762 file, not the process/descriptor.
763
764 Fix contrib/Solaris10/create_package
765 (/usr/man -> /usr/share/man) Thanks to Vita Batrla.
766
767 Fix a problem where, if a client got a lease, then went
768 to another subnet and got another lease, then moved back,
769 it couldn't resume the old lease, but would instead get
770 a new address. Thanks to Leonardo Rodrigues for spotting
771 this and testing the fix.
772
773 Fix weird bug which sometimes omitted certain characters
774 from the start of quoted strings in dhcp-options. Thanks
775 to Dayton Turner for spotting the problem.
776
777 Add facility to redirect some domains to the standard
778 upstream servers: this allows something like
779 --server=/google.com/1.2.3.4 --server=/www.google.com/#
780 which will send queries for *.google.com to 1.2.3.4,
781 except *www.google.com which will be forwarded as usual.
782 Thanks to AJ Weber for prompting this addition.
783
784 Improve the hash-algorithm used to generate IP addresses
785 from MAC addresses during initial DHCP address
786 allocation. This improves performance when large numbers
787 of hosts with similar MAC addresses all try and get an IP
788 address at the same time. Thanks to Paul Smith for his
789 work on this.
790
791 Tweak DHCP code so that --bridge-interface can be used to
792 select which IP alias of an interface should be used for
793 DHCP purposes on Linux. If eth0 has an alias eth0:dhcp
794 then adding --bridge-interface=eth0:dhcp,eth0 will use
795 the address of eth0:dhcp to determine the correct subnet
796 for DHCP address allocation. Thanks to Pawel Golaszewski
797 for prompting this and Eric Cooper for further testing.
798
799 Add --dhcp-generate-names. Suggestion by Ferenc Wagner.
800
801 Tweak DNS server selection algorithm when there is more
802 than one server available for a domain, eg.
803 --server=/mydomain/1.1.1.1
804 --server=/mydomain/2.2.2.2
805 Thanks to Alberto Cuesta-Canada for spotting a weakness
806 here.
807
808 Add --max-ttl. Thanks to Fredrik Ringertz for the patch.
809
810 Allow --log-facility=- to force all logging to
811 stderr. Suggestion from Clemens Fischer.
812
813 Fix regression which caused configuration like
814 --address=/.domain.com/1.2.3.4 to be rejected. The dot to the
815 left of the domain has been implied and not required for a
816 long time, but it should be accepted for backward
817 compatibility. Thanks to Andrew Burcin for spotting this.
818
819 Add --rebind-domain-ok and --rebind-localhost-ok.
820 Suggestion from Clemens Fischer.
821
822 Log replies to queries of type TXT, when --log-queries
823 is set.
824
825 Fix compiler warnings when compiled with -DNO_DHCP. Thanks
826 to Shantanu Gadgil for the patch.
827
828 Updated French translation. Thanks to Gildas Le Nadan.
829
830 Updated Polish translation. Thanks to Jan Psota.
831
832 Updated German translation. Thanks to Matthias Andree.
833
834 Added contrib/static-arp, thanks to Darren Hoo.
835
836 Fix corruption of the domain when a name from /etc/hosts
837 overrides one supplied by a DHCP client. Thanks to Fedor
838 Kozhevnikov for spotting the problem.
839
840 Updated Spanish translation. Thanks to Chris Chatham.
841
842
843 version 2.52
844 Work around a Linux kernel bug which insists that the
845 length of the option passed to setsockopt must be at least
846 sizeof(int) bytes, even if we're calling SO_BINDTODEVICE
847 and the device name is "lo". Note that this is fixed
848 in kernel 2.6.31, but the workaround is harmless and
849 allows earlier kernels to be used. Also fix dnsmasq
850 bug which reported the wrong address when this failed.
851 Thanks to Fedor for finding this.
852
853 The API for IPv6 PKTINFO changed around Linux kernel
854 2.6.14. Workaround the case where dnsmasq is compiled
855 against newer headers, but then run on an old kernel:
856 necessary for some *WRT distros.
857
858 Re-read the set of network interfaces when re-loading
859 /etc/resolv.conf if --bind-interfaces is not set. This
860 handles the case that loopback interfaces do not exist
861 when dnsmasq is first started.
862
863 Tweak the PXE code to support port 4011. This should
864 reduce broadcasts and make things more reliable when other
865 servers are around. It also improves inter-operability
866 with certain clients.
867
868 Make a pxe-service configuration with no filename or boot
869 service type legal: this does a local boot. eg.
870 pxe-service=x86PC, "Local boot"
871
872 Be more conservative in detecting "A for A"
873 queries. Dnsmasq checks if the name in a type=A query looks
874 like a dotted-quad IP address and answers the query itself
875 if so, rather than forwarding it. Previously dnsmasq
876 relied in the library function inet_addr() to convert
877 addresses, and that will accept some things which are
878 confusing in this context, like 1.2.3 or even just
879 1234. Now we only do A for A processing for four decimal
880 numbers delimited by dots.
881
882 A couple of tweaks to fix compilation on Solaris. Thanks
883 to Joel Macklow for help with this.
884
885 Another Solaris compilation tweak, needed for Solaris
886 2009.06. Thanks to Lee Essen for that.
887
888 Added extract packaging stuff from Lee Essen to
889 contrib/Solaris10.
890
891 Increased the default limit on number of leases to 1000
892 (from 150). This is mainly a defence against DoS attacks,
893 and for the average "one for two class C networks"
894 installation, IP address exhaustion does that just as
895 well. Making the limit greater than the number of IP
896 addresses available in such an installation removes a
897 surprise which otherwise can catch people out.
898
899 Removed extraneous trailing space in the value of the
900 DNSMASQ_TIME_REMAINING DNSMASQ_LEASE_LENGTH and
901 DNSMASQ_LEASE_EXPIRES environment variables. Thanks to
902 Gildas Le Nadan for spotting this.
903
904 Provide the network-id tags for a DHCP transaction to
905 the lease-change script in the environment variable
906 DNSMASQ_TAGS. A good suggestion from Gildas Le Nadan.
907
908 Add support for RFC3925 "Vendor-Identifying Vendor
909 Options". The syntax looks like this:
910 --dhcp-option=vi-encap:<enterprise number>, .........
911
912 Add support to --dhcp-match to allow matching against
913 RFC3925 "Vendor-Identifying Vendor Classes". The syntax
914 looks like this:
915 --dhcp-match=tag,vi-encap<enterprise number>, <value>
916
917 Add some application specific code to assist in
918 implementing the Broadband forum TR069 CPE-WAN
919 specification. The details are in contrib/CPE-WAN/README
920
921 Increase the default DNS packet size limit to 4096, as
922 recommended by RFC5625 section 4.4.3. This can be
923 reconfigured using --edns-packet-max if needed. Thanks to
924 Francis Dupont for pointing this out.
925
926 Rewrite query-ids even for TSIG signed packets, since
927 this is allowed by RFC5625 section 4.5.
928
929 Use getopt_long by default on OS X. It has been supported
930 since version 10.3.0. Thanks to Arek Dreyer for spotting
931 this.
932
933 Added up-to-date startup configuration for MacOSX/launchd
934 in contrib/MacOSX-launchd. Thanks to Arek Dreyer for
935 providing this.
936
937 Fix link error when including Dbus but excluding DHCP.
938 Thanks to Oschtan for the bug report.
939
940 Updated French translation. Thanks to Gildas Le Nadan.
941
942 Updated Polish translation. Thanks to Jan Psota.
943
944 Updated Spanish translation. Thanks to Chris Chatham.
945
946 Fixed confusion about domains, when looking up DHCP hosts
947 in /etc/hosts. This could cause spurious "Ignoring
948 domain..." messages. Thanks to Fedor Kozhevnikov for
949 finding and analysing the problem.
950
951
952 version 2.51
953 Add support for internationalised DNS. Non-ASCII characters
954 in domain names found in /etc/hosts, /etc/ethers and
955 /etc/dnsmasq.conf will be correctly handled by translation to
956 punycode, as specified in RFC3490. This function is only
957 available if dnsmasq is compiled with internationalisation
958 support, and adds a dependency on GNU libidn. Without i18n
959 support, dnsmasq continues to be compilable with just
960 standard tools. Thanks to Yves Dorfsman for the
961 suggestion.
962
963 Add two more environment variables for lease-change scripts:
964 First, DNSMASQ_SUPPLIED_HOSTNAME; this is set to the hostname
965 supplied by a client, even if the actual hostname used is
966 over-ridden by dhcp-host or dhcp-ignore-names directives.
967 Also DNSMASQ_RELAY_ADDRESS which gives the address of
968 a DHCP relay, if used.
969 Suggestions from Michael Rack.
970
971 Fix regression which broke echo of relay-agent
972 options. Thanks to Michael Rack for spotting this.
973
974 Don't treat option 67 as being interchangeable with
975 dhcp-boot parameters if it's specified as
976 dhcp-option-force.
977
978 Make the code to call scripts on lease-change compile-time
979 optional. It can be switched off by editing src/config.h
980 or building with "make COPTS=-DNO_SCRIPT".
981
982 Make the TFTP server cope with filenames from Windows/DOS
983 which use '\' as pathname separator. Thanks to Ralf for
984 the patch.
985
986 Updated Polish translation. Thanks to Jan Psota.
987
988 Warn if an IP address is duplicated in /etc/ethers. Thanks
989 to Felix Schwarz for pointing this out.
990
991 Teach --conf-dir to take an option list of file suffices
992 which will be ignored when scanning the directory. Useful
993 for backup files etc. Thanks to Helmut Hullen for the
994 suggestion.
995
996 Add new DHCP option named tftpserver-address, which
997 corresponds to the third argument of dhcp-boot. This
998 allows the complete functionality of dhcp-boot to be
999 replicated with dhcp-option. Useful when using
1000 dhcp-optsfile.
1001
1002 Test which upstream nameserver to use every 10 seconds
1003 or 50 queries and not just when a query times out and
1004 is retried. This should improve performance when there
1005 is a slow nameserver in the list. Thanks to Joe for the
1006 suggestion.
1007
1008 Don't do any PXE processing, even for clients with the
1009 correct vendorclass, unless at least one pxe-prompt or
1010 pxe-service option is given. This stops dnsmasq
1011 interfering with proxy PXE subsystems when it is just
1012 the DHCP server. Thanks to Spencer Clark for spotting this.
1013
1014 Limit the blocksize used for TFTP transfers to a value
1015 which avoids packet fragmentation, based on the MTU of the
1016 local interface. Many netboot ROMs can't cope with
1017 fragmented packets.
1018
1019 Honour dhcp-ignore configuration for PXE and proxy-PXE
1020 requests. Thanks to Niels Basjes for the bug report.
1021
1022 Updated French translation. Thanks to Gildas Le Nadan.
1023
1024
1025 version 2.50
1026 Fix security problem which allowed any host permitted to
1027 do TFTP to possibly compromise dnsmasq by remote buffer
1028 overflow when TFTP enabled. Thanks to Core Security
1029 Technologies and Iván Arce, Pablo Hernán Jorge, Alejandro
1030 Pablo Rodriguez, Martín Coco, Alberto Soliño Testa and
1031 Pablo Annetta. This problem has Bugtraq id: 36121
1032 and CVE: 2009-2957
1033
1034 Fix a problem which allowed a malicious TFTP client to
1035 crash dnsmasq. Thanks to Steve Grubb at Red Hat for
1036 spotting this. This problem has Bugtraq id: 36120 and
1037 CVE: 2009-2958
1038
1039
1040 version 2.49
1041 Fix regression in 2.48 which disables the lease-change
1042 script. Thanks to Jose Luis Duran for spotting this.
1043
1044 Log TFTP "file not found" errors. These were not logged,
1045 since a normal PXELinux boot generates many of them, but
1046 the lack of the messages seems to be more confusing than
1047 routinely seeing them when there is no real error.
1048
1049 Update Spanish translation. Thanks to Chris Chatham.
1050
1051
1052 version 2.48
1053 Archived the extensive, backwards, changelog to
1054 CHANGELOG.archive. The current changelog now runs from
1055 version 2.43 and runs conventionally.
1056
1057 Fixed bug which broke binding of servers to physical
1058 interfaces when interface names were longer than four
1059 characters. Thanks to MURASE Katsunori for the patch.
1060
1061 Fixed netlink code to check that messages come from the
1062 correct source, and not another userspace process. Thanks
1063 to Steve Grubb for the patch.
1064
1065 Maintainability drive: removed bug and missing feature
1066 workarounds for some old platforms. Solaris 9, OpenBSD
1067 older than 4.1, Glibc older than 2.2, Linux 2.2.x and
1068 DBus older than 1.1.x are no longer supported.
1069
1070 Don't read included configuration files more than once:
1071 allows complex configuration structures without problems.
1072
1073 Mark log messages from the various subsystems in dnsmasq:
1074 messages from the DHCP subsystem now have the ident string
1075 "dnsmasq-dhcp" and messages from TFTP have ident
1076 "dnsmasq-tftp". Thanks to Olaf Westrik for the patch.
1077
1078 Fix possible infinite DHCP protocol loop when an IP
1079 address nailed to a hostname (not a MAC address) and a
1080 host sometimes provides the name, sometimes not.
1081
1082 Allow --addn-hosts to take a directory: all the files
1083 in the directory are read. Thanks to Phil Cornelius for
1084 the suggestion.
1085
1086 Support --bridge-interface on all platforms, not just BSD.
1087
1088 Added support for advanced PXE functions. It's now
1089 possible to define a prompt and menu options which will
1090 be displayed when a client PXE boots. It's also possible to
1091 hand-off booting to other boot servers. Proxy-DHCP, where
1092 dnsmasq just supplies the PXE information and another DHCP
1093 server does address allocation, is also allowed. See the
1094 --pxe-prompt and --pxe-service keywords. Thanks to
1095 Alkis Georgopoulos for the suggestion and Guilherme Moro
1096 and Michael Brown for assistance.
1097
1098 Improvements to DHCP logging. Thanks to Tom Metro for
1099 useful suggestions.
1100
1101 Add ability to build dnsmasq without DHCP support. To do
1102 this, edit src/config.h or build with
1103 "make COPTS=-DNO_DHCP". Thanks to Mahavir Jain for the patch.
1104
1105 Added --test command-line switch - syntax check
1106 configuration files only.
1107
1108 Updated French translation. Thanks to Gildas Le Nadan.
1109
1110
1111 version 2.47
1112 Updated French translation. Thanks to Gildas Le Nadan.
1113
1114 Fixed interface enumeration code to work on NetBSD
1115 5.0. Thanks to Roy Marples for the patch.
1116
1117 Updated config.h to use the same location for the lease
1118 file on NetBSD as the other *BSD variants. Also allow
1119 LEASEFILE and CONFFILE symbols to be overriden in CFLAGS.
1120
1121 Handle duplicate address detection on IPv6 more
1122 intelligently. In IPv6, an interface can have an address
1123 which is not usable, because it is still undergoing DAD
1124 (such addresses are marked "tentative"). Attempting to
1125 bind to an address in this state returns an error,
1126 EADDRNOTAVAIL. Previously, on getting such an error,
1127 dnsmasq would silently abandon the address, and never
1128 listen on it. Now, it retries once per second for 20
1129 seconds before generating a fatal error. 20 seconds should
1130 be long enough for any DAD process to complete, but can be
1131 adjusted in src/config.h if necessary. Thanks to Martin
1132 Krafft for the bug report.
1133
1134 Add DBus introspection. Patch from Jeremy Laine.
1135
1136 Update Dbus configuration file. Patch from Colin Walters.
1137 Fix for this bug:
1138 http://bugs.freedesktop.org/show_bug.cgi?id=18961
1139
1140 Support arbitrarily encapsulated DHCP options, suggestion
1141 and initial patch from Samium Gromoff. This is useful for
1142 (eg) gPXE, which expect all its private options to be
1143 encapsulated inside a single option 175. So, eg,
1144
1145 dhcp-option = encap:175, 190, "iscsi-client0"
1146 dhcp-option = encap:175, 191, "iscsi-client0-secret"
1147
1148 will provide iSCSI parameters to gPXE.
1149
1150 Enhance --dhcp-match to allow testing of the contents of a
1151 client-sent option, as well as its presence. This
1152 application in mind for this is RFC 4578
1153 client-architecture specifiers, but it's generally useful.
1154 Joey Korkames suggested the enhancement.
1155
1156 Move from using the IP_XMIT_IF ioctl to IP_BOUND_IF on
1157 OpenSolaris. Thanks to Bastian Machek for the heads-up.
1158
1159 No longer complain about blank lines in
1160 /etc/ethers. Thanks to Jon Nelson for the patch.
1161
1162 Fix binding of servers to physical devices, eg
1163 --server=/domain/1.2.3.4@eth0 which was broken from 2.43
1164 onwards unless --query-port=0 set. Thanks to Peter Naulls
1165 for the bug report.
1166
1167 Reply to DHCPINFORM requests even when the supplied ciaddr
1168 doesn't fall in any dhcp-range. In this case it's not
1169 possible to supply a complete configuration, but
1170 individually-configured options (eg PAC) may be useful.
1171
1172 Allow the source address of an alias to be a range:
1173 --alias=192.168.0.0,10.0.0.0,255.255.255.0 maps the whole
1174 subnet 192.168.0.0->192.168.0.255 to 10.0.0.0->10.0.0.255,
1175 as before.
1176 --alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
1177 maps only the 192.168.0.10->192.168.0.40 region. Thanks to
1178 Ib Uhrskov for the suggestion.
1179
1180 Don't dynamically allocate DHCP addresses which may break
1181 Windows. Addresses which end in .255 or .0 are broken in
1182 Windows even when using supernetting.
1183 --dhcp-range=192.168.0.1,192.168.1.254,255,255,254.0 means
1184 192.168.0.255 is a valid IP address, but not for Windows.
1185 See Microsoft KB281579. We therefore no longer allocate
1186 these addresses to avoid hard-to-diagnose problems.
1187
1188 Update Polish translation. Thanks to Jan Psota.
1189
1190 Delete the PID-file when dnsmasq shuts down. Note that by
1191 this time, dnsmasq is normally not running as root, so
1192 this will fail if the PID-file is stored in a root-owned
1193 directory; such failure is silently ignored. To take
1194 advantage of this feature, the PID-file must be stored in a
1195 directory owned and write-able by the user running
1196 dnsmasq.
1197
1198
1199 version 2.46
1200 Allow --bootp-dynamic to take a netid tag, so that it may
1201 be selectively enabled. Thanks to Olaf Westrik for the
1202 suggestion.
1203
1204 Remove ISC-leasefile reading code. This has been
1205 deprecated for a long time, and last time I removed it, it
1206 ended up going back by request of one user. This time,
1207 it's gone for good; otherwise it would need to be
1208 re-worked to support multiple domains (see below).
1209
1210 Support DHCP clients in multiple DNS domains. This is a
1211 long-standing request. Clients are assigned to a domain
1212 based in their IP address.
1213
1214 Add --dhcp-fqdn flag, which changes behaviour if DNS names
1215 assigned to DHCP clients. When this is set, there must be
1216 a domain associated with each client, and only
1217 fully-qualified domain names are added to the DNS. The
1218 advantage is that the only the FQDN needs to be unique,
1219 so that two or more DHCP clients can share a hostname, as
1220 long as they are in different domains.
1221
1222 Set environment variable DNSMASQ_DOMAIN when invoking
1223 lease-change script. This may be useful information to
1224 have now that it's variable.
1225
1226 Tighten up data-checking code for DNS packet
1227 handling. Thanks to Steve Dodd who found certain illegal
1228 packets which could crash dnsmasq. No memory overwrite was
1229 possible, so this is not a security issue beyond the DoS
1230 potential.
1231
1232 Update example config dhcp option 47, the previous
1233 suggestion generated an illegal, zero-length,
1234 option. Thanks to Matthias Andree for finding this.
1235
1236 Rewrite hosts-file reading code to remove the limit of
1237 1024 characters per line. John C Meuser found this.
1238
1239 Create a net-id tag with the name of the interface on
1240 which the DHCP request was received.
1241
1242 Fixed minor memory leak in DBus code, thanks to Jeremy
1243 Laine for the patch.
1244
1245 Emit DBus signals as the DHCP lease database
1246 changes. Thanks to Jeremy Laine for the patch.
1247
1248 Allow for more that one MAC address in a dhcp-host
1249 line. This configuration tells dnsmasq that it's OK to
1250 abandon a DHCP lease of the fixed address to one MAC
1251 address, if another MAC address in the dhcp-host statement
1252 asks for an address. This is useful to give a fixed
1253 address to a host which has two network interfaces
1254 (say, a laptop with wired and wireless interfaces.)
1255 It's very important to ensure that only one interface
1256 at a time is up, since dnsmasq abandons the first lease
1257 and re-uses the address before the leased time has
1258 elapsed. John Gray suggested this.
1259
1260 Tweak the response to a DHCP request packet with a wrong
1261 server-id when --dhcp-authoritative is set; dnsmasq now
1262 returns a DHCPNAK, rather than silently ignoring the
1263 packet. Thanks to Chris Marget for spotting this
1264 improvement.
1265
1266 Add --cname option. This provides a limited alias
1267 function, usable for DHCP names. Thanks to AJ Weber for
1268 suggestions on this.
1269
1270 Updated contrib/webmin with latest version from Neil
1271 Fisher.
1272
1273 Updated Polish translation. Thanks to Jan Psota.
1274
1275 Correct the text names for DHCP options 64 and 65 to be
1276 "nis+-domain" and "nis+-servers".
1277
1278 Updated Spanish translation. Thanks to Chris Chatham.
1279
1280 Force re-reading of /etc/resolv.conf when an "interface
1281 up" event occurs.
1282
1283
1284 version 2.45
1285 Fix total DNS failure in release 2.44 unless --min-port
1286 specified. Thanks to Steven Barth and Grant Coady for
1287 bugreport. Also reject out-of-range port spec, which could
1288 break things too: suggestion from Gilles Espinasse.
1289
1290
1291 version 2.44
1292 Fix crash when unknown client attempts to renew a DHCP
1293 lease, problem introduced in version 2.43. Thanks to
1294 Carlos Carvalho for help chasing this down.
1295
1296 Fix potential crash when a host which doesn't have a lease
1297 does DHCPINFORM. Again introduced in 2.43. This bug has
1298 never been reported in the wild.
1299
1300 Fix crash in netlink code introduced in 2.43. Thanks to
1301 Jean Wolter for finding this.
1302
1303 Change implementation of min_port to work even if min-port
1304 is large.
1305
1306 Patch to enable compilation of latest Mac OS X. Thanks to
1307 David Gilman.
1308
1309 Update Spanish translation. Thanks to Christopher Chatham.
1310
1311
1312 version 2.43
1313 Updated Polish translation. Thanks to Jan Psota.
1314
1315 Flag errors when configuration options are repeated
1316 illegally.
1317
1318 Further tweaks for GNU/kFreeBSD
1319
1320 Add --no-wrap to msgmerge call - provides nicer .po file
1321 format.
1322
1323 Honour lease-time spec in dhcp-host lines even for
1324 BOOTP. The user is assumed to known what they are doing in
1325 this case. (Hosts without the time spec still get infinite
1326 leases for BOOTP, over-riding the default in the
1327 dhcp-range.) Thanks to Peter Katzmann for uncovering this.
1328
1329 Fix problem matching relay-agent ids. Thanks to Michael
1330 Rack for the bug report.
1331
1332 Add --naptr-record option. Suggestion from Johan
1333 Bergquist.
1334
1335 Implement RFC 5107 server-id-override DHCP relay agent
1336 option.
1337
1338 Apply patches from Stefan Kruger for compilation on
1339 Solaris 10 under Sun studio.
1340
1341 Yet more tweaking of Linux capability code, to suppress
1342 pointless wingeing from kernel 2.6.25 and above.
1343
1344 Improve error checking during startup. Previously, some
1345 errors which occurred during startup would be worked
1346 around, with dnsmasq still starting up. Some were logged,
1347 some silent. Now, they all cause a fatal error and dnsmasq
1348 terminates with a non-zero exit code. The errors are those
1349 associated with changing uid and gid, setting process
1350 capabilities and writing the pidfile. Thanks to Uwe
1351 Gansert and the Suse security team for pointing out
1352 this improvement, and Bill Reimers for good implementation
1353 suggestions.
1354
1355 Provide NO_LARGEFILE compile option to switch off largefile
1356 support when compiling against versions of uclibc which
1357 don't support it. Thanks to Stephane Billiart for the patch.
1358
1359 Implement random source ports for interactions with
1360 upstream nameservers. New spoofing attacks have been found
1361 against nameservers which do not do this, though it is not
1362 clear if dnsmasq is vulnerable, since to doesn't implement
1363 recursion. By default dnsmasq will now use a different
1364 source port (and socket) for each query it sends
1365 upstream. This behaviour can suppressed using the
1366 --query-port option, and the old default behaviour
1367 restored using --query-port=0. Explicit source-port
1368 specifications in --server configs are still honoured.
1369
1370 Replace the random number generator, for better
1371 security. On most BSD systems, dnsmasq uses the
1372 arc4random() RNG, which is secure, but on other platforms,
1373 it relied on the C-library RNG, which may be
1374 guessable and therefore allow spoofing. This release
1375 replaces the libc RNG with the SURF RNG, from Daniel
1376 J. Berstein's DJBDNS package.
1377
1378 Don't attempt to change user or group or set capabilities
1379 if dnsmasq is run as a non-root user. Without this, the
1380 change from soft to hard errors when these fail causes
1381 problems for non-root daemons listening on high
1382 ports. Thanks to Patrick McLean for spotting this.
1383
1384 Updated French translation. Thanks to Gildas Le Nadan.
1385
1386
1387 version 2.42
1388 The changelog for version 2.42 and earlier is
1389 available in CHANGELOG.archive.