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