blob: dca25d5956340972556c5762d83a7ce98b950c02 [file] [log] [blame]
Simon Kelleyeabc6dd2012-03-07 20:28:20 +00001version 2.61
2 Re-write interface discovery code on *BSD to use
3 getifaddrs. This is more portable, more straightforward,
4 and allows us to find the prefix length for IPv6
5 addresses.
6
Simon Kelley01d1b8d2012-03-28 21:37:25 +01007 Add ra-names, ra-stateless and slaac keywords for DHCPv6.
8 Dnsmasq can now synthesise AAAA records for dual-stack
9 hosts which get IPv6 addresses via SLAAC. It is also now
10 possible to use SLAAC and stateless DHCPv6, and to
11 tell clients to use SLAAC addresses as well as DHCP ones.
12 Thanks to Dave Taht for help with this.
Simon Kelley7023e382012-03-09 12:05:49 +000013
Simon Kelley8b372702012-03-09 17:45:10 +000014 Add --dhcp-duid to allow DUID-EN uids to be used.
15
Simon Kelley8643ec72012-03-12 20:04:14 +000016 Explicity send DHCPv6 replies to the correct port, instead
17 of relying on clients to send requests with the correct
18 source address, since at least one client in the wild gets
19 this wrong. Thanks to Conrda Kostecki for help tracking
20 this down.
Simon Kelleyeabc6dd2012-03-07 20:28:20 +000021
Simon Kelley8643ec72012-03-12 20:04:14 +000022 Send a preference value of 255 in DHCPv6 replies when
23 --dhcp-authoritative is in effect. This tells clients not
24 to wait around for other DHCP servers.
25
26 Better logging of DHCPv6 options.
27
Simon Kelleye759d422012-03-16 13:18:57 +000028 Add --host-record. Thanks to Rob Zwissler for the
29 suggestion.
30
Simon Kelleya9530962012-03-20 22:07:35 +000031 Invoke the DHCP script with action "tftp" when a TFTP file
32 transfer completes. The size of the file, address to which
33 it was sent and complete pathname are supplied. Note that
34 version 2.60 introduced some script incompatibilties
35 associated with DHCPv6, and this is a further change. To
36 be safe, scripts should ignore unknown actions, and if
37 not IPv6-aware, should exit if the environment
38 variable DNSMASQ_IAID is set. The use-case for this is
39 to track netboot/install. Suggestion from Shantanu
40 Gadgil.
41
42 Update contrib/port-forward/dnsmasq-portforward to reflect
43 the above.
44
45 Set the environment variable DNSMASQ_LOG_DHCP when running
46 the script id --log-dhcp is in effect, so that script can
Simon Kelley52d4abf2012-03-21 21:39:48 +000047 taylor their logging verbosity. Suggestion from Malte
48 Forkel.
49
50 Arrange that addresses specified with --listen-address
51 work even if there is no interface carrying the
52 address. This is chiefly useful for IPv4 loopback
53 addresses, where any address in 127.0.0.0/8 is a valid
54 loopback address, but normally only 127.0.0.1 appears on
55 the lo interface. Thanks to Mathieu Trudel-Lapierre for
56 the idea and initial patch.
Simon Kelleya9530962012-03-20 22:07:35 +000057
Simon Kelley7d2b5c92012-03-23 10:00:02 +000058 Fix crash, introduced in 2.60, when a DHCPINFORM is
59 received from a network which has no valid dhcp-range.
60 Thanks to Stephane Glondu for the bug report.
61
Simon Kelleyc8257542012-03-28 21:15:41 +010062 Add a new DHCP lease time keyword, "deprecated" for
63 --dhcp-range. This is only valid for IPv6, and sets the
64 preffered lease time for both DHCP and RA to zero. The
65 effect is that clients can continue to use the address
66 for existing connections, but new connections will use
67 other addresses, if they exist. This makes hitless
68 renumbering at least possible.
69
70 Fix bug in address6_available() which caused DHCPv6 lease
71 aquistion to fail of more than one dhcp-range in use.
Simon Kelley18f0fb02012-03-31 21:18:55 +010072
73 Provide RDNSS and DNSSL data in router advertisements,
74 using the settings provided for DHCP options
75 option6:domain-search and option6:dns-server.
Simon Kelleyc8257542012-03-28 21:15:41 +010076
77
Simon Kelleyc72daea2012-01-05 21:33:27 +000078version 2.60
79 Fix compilation problem in Mac OS X Lion. Thanks to Olaf
80 Flebbe for the patch.
Simon Kelley74c95c22011-10-19 09:33:39 +010081
Simon Kelleyc72daea2012-01-05 21:33:27 +000082 Fix DHCP when using --listen-address with an IP address
83 which is not the primary address of an interface.
84
85 Add --dhcp-client-update option.
86
87 Add Lua integration. Dnsmasq can now execute a DHCP
88 lease-change script written in Lua. This needs to be
89 enabled at compile time by setting HAVE_LUASCRIPT in
90 src/config.h or running "make COPTS=-DHAVE_LUASCRIPT"
91 Thanks to Jan-Piet Mens for the idea and proof-of-concept
92 implementation.
93
94 Tidied src/config.h to distinguish between
95 platform-dependent compile-time options which are selected
96 automatically, and builder-selectable compile time
97 options. Document the latter better, and describe how to
98 set them from the make command line.
99
100 Tidied up IPPROTO_IP/SOL_IP (and IPv6 equivalent)
101 confusion. IPPROTO_IP works everywhere now.
102
103 Set TOS on DHCP sockets, this improves things on busy
104 wireless networks. Thanks to Dave Taht for the patch.
105
Simon Kelley984d2fd2012-01-06 14:34:32 +0000106 Determine VERSION automatically based on git magic:
107 release tags or hash values.
Simon Kelleyc72daea2012-01-05 21:33:27 +0000108
Simon Kelleya2761752012-01-18 16:07:21 +0000109 Improve start-up speed when reading large hosts files
110 containing many distinct addresses.
111
112 Fix problem if dnsmasq is started without the stdin,
113 stdout and stderr file descriptors open. This can manifest
114 itself as 100% CPU use. Thanks to Chris Moore for finding
115 this.
116
Simon Kelley9bbc8872012-02-09 21:33:09 +0000117 Fix shell-scripting bug in bld/pkg-wrapper. Thanks to
118 Mark Mitchell for the patch.
119
Simon Kelley751d6f42012-02-10 15:24:51 +0000120 Allow the TFP server or boot server in --pxe-service, to
121 be a domain name instead of an IP address. This allows for
122 round-robin to multiple servers, in the same way as
123 --dhcp-boot. A good suggestion from Cristiano Cumer.
124
Simon Kelleyfdacfb02012-02-28 15:20:25 +0000125 Support BUILDDIR variable in the Makefile. Allows builds
126 for multiple archs from the same source tree with eg.
127 make BUILDDIR=linux (relative to dnsmasq tree)
128 make BUILDDIR=/tmp/openbsd (absolute path)
Simon Kelleye5ffdb92012-02-13 14:19:25 +0000129 If BUILDDIR is not set, compilation happens in the src
Simon Kelleyb36ae192012-02-13 12:54:34 +0000130 directory, as before. Suggestion from Mark Mitchell.
131
Simon Kelleyfdacfb02012-02-28 15:20:25 +0000132 Support DHCPv6. Support is there for the sort of things
133 the existing v4 server does, including tags, options,
134 static addresses and relay support. Missing is prefix
135 delegation, which is probably not required in the dnsmasq
136 niche, and an easy way to accept prefix delegations from
137 an upstream DHCPv6 server, which is. Future plans include
138 support for DHCPv6 router option and MAC address option
139 (to make selecting clients by MAC address work like IPv4).
140 These will be added as the standards mature.
141 This code has been tested, but this is the first release,
142 so don't bet the farm on it just yet. Many thanks to all
143 testers who have got it this far.
Simon Kelley1adadf52012-02-13 22:15:58 +0000144
Simon Kelleyac8540c2012-02-26 20:57:31 +0000145 Support IPv6 router advertisements. This is a
146 simple-minded implementation, aimed at providing the
147 vestigial RA needed to go alongside IPv6. Is picks up
148 configuration from the DHCPv6 conf, and should just need
149 enabling with --enable-ra.
150
Simon Kelley552af8b2012-02-29 20:10:31 +0000151 Fix long-standing wrinkle with --localise-queries that
152 could result in wrong answers when DNS packets arrive
153 via an interface other than the expected one. Thanks to
154 Lorenzo Milesi and John Hanks for spotting this one.
Simon Kelley71ee7ee2012-03-03 18:06:49 +0000155
156 Update French translation. Thanks to Gildas Le Nadan.
Simon Kelley552af8b2012-02-29 20:10:31 +0000157
Simon Kelleydf66e342012-03-04 20:04:22 +0000158 Update Polish translation. Thanks to Jan Psota.
159
160
Simon Kelleyc72daea2012-01-05 21:33:27 +0000161version 2.59
162 Fix regression in 2.58 which caused failure to start up
163 with some combinations of dnsmasq config and IPv6 kernel
164 network config. Thanks to Brielle Bruns for the bug
165 report.
166
167 Improve dnsmasq's behaviour when network interfaces are
168 still doing duplicate address detection (DAD). Previously,
169 dnsmasq would wait up to 20 seconds at start-up for the
170 DAD state to terminate. This is broken for bridge
171 interfaces on recent Linux kernels, which don't start DAD
172 until the bridge comes up, and so can take arbitrary
173 time. The new behaviour lets dnsmasq poll for an arbitrary
174 time whilst providing service on other interfaces. Thanks
175 to Stephen Hemminger for pointing out the problem.
Simon Kelley74c95c22011-10-19 09:33:39 +0100176
177
Simon Kelley7de060b2011-08-26 17:24:52 +0100178version 2.58
179 Provide a definition of the SA_SIZE macro where it's
180 missing. Fixes build failure on openBSD.
181
182 Don't include a zero terminator at the end of messages
183 sent to /dev/log when /dev/log is a datagram socket.
184 Thanks to Didier Rabound for spotting the problem.
185
186 Add --dhcp-sequential-ip flag, to force allocation of IP
187 addresses in ascending order. Note that the default
188 pseudo-random mode is in general better but some
189 server-deployment applications need this.
190
191 Fix problem where a server-id of 0.0.0.0 is sent to a
192 client when a dhcp-relay is in use if a client renews a
193 lease after dnsmasq restart and before any clients on the
194 subnet get a new lease. Thanks to Mike Ruiz for assistance
195 in chasing this one down.
196
197 Don't return NXDOMAIN to an AAAA query if we have CNAME
198 which points to an A record only: NODATA is the correct
199 reply in this case. Thanks to Tom Fernandes for spotting
200 the problem.
201
202 Relax the need to supply a netmask in --dhcp-range for
203 networks which use a DHCP relay. Whilst this is still
204 desireable, in the absence of a netmask dnsmasq will use
205 a default based on the class (A, B, or C) of the address.
206 This should at least remove a cause of mysterious failure
207 for people using RFC1918 addresses and relays.
208
209 Add support for Linux conntrack connection marking. If
210 enabled with --conntrack, the connection mark for incoming
211 DNS queries will be copied to the outgoing connections
212 used to answer those queries. This allows clever firewall
213 and accounting stuff. Only available if dnsmasq is
214 compiled with HAVE_CONNTRACK and adds a dependency on
215 libnetfilter-conntrack. Thanks to Ed Wildgoose for the
216 initial idea, testing and sponsorship of this function.
217
218 Provide a sane error message when someone attempts to
219 match a tag in --dhcp-host.
220
221 Tweak the behaviour of --domain-needed, to avoid problems
222 with recursive nameservers downstream of dnsmasq. The new
223 behaviour only stops A and AAAA queries, and returns
224 NODATA rather than NXDOMAIN replies.
225
226 Efficiency fix for very large DHCP configurations, thanks
227 to James Gartrell and Mike Ruiz for help with this.
228
229 Allow the TFTP-server address in --dhcp-boot to be a
230 domain-name which is looked up in /etc/hosts. This can
231 give multiple IP addresses which are used round-robin,
232 thus doing TFTP server load-balancing. Thanks to Sushil
233 Agrawal for the patch.
234
235 When two tagged dhcp-options for a particular option
236 number are both valid, use the one which is valid without
237 a tag from the dhcp-range. Allows overriding of the value
238 of a DHCP option for a particular host as well as
239 per-network values. So
240 --dhcp-range=set:interface1,......
241 --dhcp-host=set:myhost,.....
242 --dhcp-option=tag:interface1,option:nis-domain,"domain1"
243 --dhcp-option=tag:myhost,option:nis-domain,"domain2"
244 will set the NIS-domain to domain1 for hosts in the range, but
245 override that to domain2 for a particular host.
246
247 Fix bug which resulted in truncated files and timeouts for
248 some TFTP transfers. The bug only occurs with netascii
249 transfers and needs an unfortunate relationship between
250 file size, blocksize and the number of newlines in the
251 last block before it manifests itself. Many thanks to
252 Alkis Georgopoulos for spotting the problem and providing
253 a comprehensive test-case.
254
255 Fix regression in TFTP server on *BSD platforms introduced
256 in version 2.56, due to confusion with sockaddr
257 length. Many thanks to Loïc Pefferkorn for finding this.
258
259 Support scope-ids in IPv6 addresses of nameservers from
260 /etc/resolv.conf and in --server options. Eg
261 nameserver fe80::202:a412:4512:7bbf%eth0 or
262 server=fe80::202:a412:4512:7bbf%eth0. Thanks to
263 Michael Stapelberg for the suggestion.
264
265 Update Polish translation, thanks to Jan Psota.
266
267 Update French translation. Thanks to Gildas Le Nadan.
268
269
Simon Kelley572b41e2011-02-18 18:11:18 +0000270version 2.57
271 Add patches to allow build under Android.
272
273 Provide our own header for the DNS protocol, rather than
274 relying on arpa/nameser.h. This has proved more or less
275 defective over the years and the final straw is that it's
276 effectively empty on Android.
277
278 Fix regression in 2.56 which caused hex constants in
279 configuration to be rejected if they contain the '*'
280 wildcard.
281
282 Correct wrong casts of arguments to ctype.h functions,
283 isdigit(), isxdigit() etc. Thanks to Matthias Andree for
284 spotting this.
285
286 Allow build with IDN support independently from i18n.
287 IDN support continues to be included automatically
288 when i18n is included.
289 'make COPTS=-DHAVE_IDN' is the magic incantation.
290
291 Modify check on extraneous command line junk (added in
292 2.56) so that it doesn't complain about extra _empty_
293 arguments. Otherwise this breaks libvirt.
294
295
Simon Kelley28866e92011-02-14 20:19:14 +0000296version 2.56
297 Add a patch to allow dnsmasq to get interface names right in a
298 Solaris zone. Thanks to Dj Padzensky for this.
299
300 Improve data-type parsing heuristics so that
301 --dhcp-option=option:domain-search,.
302 treats the value as a string and not an IP address.
303 Thanks to Clemens Fischer for spotting that.
304
305 Add IPv6 support to the TFTP server. Many thanks to Jan
306 'RedBully' Seiffert for the patches.
307
308 Log DNS queries at level LOG_INFO, rather then
309 LOG_DEBUG. This makes things consistent with DHCP
310 logging. Thanks to Adam Pribyl for spotting the problem.
311
312 Ensure that dnsmasq terminates cleanly when using
313 --syslog-async even if it cannot make a connection to the
314 syslogd.
315
316 Add --add-mac option. This is to support currently
317 experimental DNS filtering facilities. Thanks to Benjamin
318 Petrin for the orignal patch.
319
320 Fix bug which meant that tags were ignored in dhcp-range
321 configuration specifying PXE-proxy service. Thanks to
322 Cristiano Cumer for spotting this.
323
324 Raise an error if there is extra junk, not part of an
325 option, on the command line.
326
327 Flag a couple of log messages in cache.c as coming from
328 the DHCP subsystem. Thanks to Olaf Westrik for the patch.
329
330 Omit timestamps from logs when a) logging to stderr and
331 b) --keep-in-forground is set. The logging facility on the
332 other end of stderr can be assumned to supply them. Thanks
333 to John Hallam for the patch.
334
335 Don't complain about strings longer than 255 characters in
336 --txt-record, just split the long strings into 255
337 character chunks instead.
338
339 Fix crash on double-free. This bug can only happen when
340 dhcp-script is in use and then only in rare circumstances
341 triggered by high DHCP transaction rate and a slow
342 script. Thanks to Ferenc Wagner for finding the problem.
343
344 Only log that a file has been sent by TFTP after the
345 transfer has completed succesfully.
346
347 A good suggestion from Ferenc Wagner: extend
348 the --domain option to allow this sort of thing:
349 --domain=thekelleys.org.uk,192.168.0.0/24,local
350 which automatically creates
351 --local=/thekelleys.org.uk/
352 --local=/0.168.192.in-addr.arpa/
353
354 Tighten up syntax checking of hex contants in the config
355 file. Thanks to Fred Damen for spotting this.
356
357 Add dnsmasq logo/icon, contributed by Justin Swift. Many
358 thanks for that.
359
360 Never cache DNS replies which have the 'cd' bit set, or
361 which result from queries forwarded with the 'cd' bit
362 set. The 'cd' bit instructs a DNSSEC validating server
363 upstream to ignore signature failures and return replies
364 anyway. Without this change it's possible to pollute the
365 dnsmasq cache with bad data by making a query with the
366 'cd' bit set and subsequent queries would return this data
367 without its being marked as suspect. Thanks to Anders
368 Kaseorg for pointing out this problem.
369
370 Add --proxy-dnssec flag, for compliance with RFC
371 4035. Dnsmasq will now clear the 'ad' bit in answers returned
372 from upstream validating nameservers unless this option is
373 set.
374
375 Allow a filename of "-" for --conf-file to read
376 stdin. Suggestion from Timothy Redaelli.
377
378 Rotate the order of SRV records in replies, to provide
379 round-robin load balancing when all the priorities are
380 equal. Thanks to Peter McKinney for the suggestion.
381
382 Edit
383 contrib/MacOSX-launchd/uk.org.thekelleys.dnsmasq.plist
384 so that it doesn't log all queries to a file by
385 default. Thanks again to Peter McKinney.
386
387 By default, setting an IPv4 address for a domain but not
388 an IPv6 address causes dnsmasq to return
389 an NODATA reply for IPv6 (or vice-versa). So
390 --address=/google.com/1.2.3.4 stops IPv6 queries for
391 *google.com from being forwarded. Make it possible to
392 override this behaviour by defining the sematics if the
393 same domain appears in both --server and --address.
394 In that case, the --address has priority for the address
395 family in which is appears, but the --server has priority
396 of the address family which doesn't appear in --adddress
397 So:
398 --address=/google.com/1.2.3.4
399 --server=/google.com/#
400 will return 1.2.3.4 for IPv4 queries for *.google.com but
401 forward IPv6 queries to the normal upstream nameserver.
402 Similarly when setting an IPv6 address
403 only this will allow forwarding of IPv4 queries. Thanks to
404 William for pointing out the need for this.
405
406 Allow more than one --dhcp-optsfile and --dhcp-hostsfile
407 and make them understand directories as arguments in the
408 same way as --addn-hosts. Suggestion from John Hanks.
409
410 Ignore rebinding requests for leases we don't know
411 about. Rebind is broadcast, so we might get to overhear a
412 request meant for another DHCP server. NAKing this is
413 wrong. Thanks to Brad D'Hondt for assistance with this.
414
Simon Kelley572b41e2011-02-18 18:11:18 +0000415 Fix cosmetic bug which produced strange output when
416 dumping cache statistics with some configurations. Thanks
417 to Fedor Kozhevnikov for spotting this.
Simon Kelley28866e92011-02-14 20:19:14 +0000418
419
Simon Kelleyc52e1892010-06-07 22:01:39 +0100420version 2.55
Simon Kelley28866e92011-02-14 20:19:14 +0000421 Fix crash when /etc/ethers is in use. Thanks to
422 Gianluigi Tiesi for finding this.
Simon Kelleyc52e1892010-06-07 22:01:39 +0100423
Simon Kelley28866e92011-02-14 20:19:14 +0000424 Fix crash in netlink_multicast(). Thanks to Arno Wald for
425 finding this one.
Simon Kelleyc52e1892010-06-07 22:01:39 +0100426
Simon Kelley28866e92011-02-14 20:19:14 +0000427 Allow the empty domain "." in dhcp domain-search (119)
428 options.
Simon Kelleyc52e1892010-06-07 22:01:39 +0100429
430
431version 2.54
Simon Kelley28866e92011-02-14 20:19:14 +0000432 There is no version 2.54 to avoid confusion with 2.53,
433 which incorrectly identifies itself as 2.54.
Simon Kelleyc52e1892010-06-07 22:01:39 +0100434
435
Simon Kelley8ef5ada2010-06-03 19:42:45 +0100436version 2.53
437 Fix failure to compile on Debian/kFreeBSD. Thanks to
438 Axel Beckert and Petr Salinger.
439
440 Fix code to avoid scary strict-aliasing warnings
441 generated by gcc 4.4.
442
443 Added FAQ entry warning about DHCP failures with Vista
444 when firewalls block 255.255.255.255.
445
446 Fixed bug which caused bad things to happen if a
447 resolv.conf file which exists is subsequently removed.
448 Thanks to Nikolai Saoukh for the patch.
449
450 Rationalised the DHCP tag system. Every configuration item
451 which can set a tag does so by adding "set:<tag>" and
452 every configuration item which is conditional on a tag is
453 made so by "tag:<tag>". The NOT operator changes to '!',
454 which is a bit more intuitive too. Dhcp-host directives
455 can set more than one tag now. The old '#' NOT,
456 "net:" prefix and no-prefixes are still honoured, so
457 no existing config file needs to be changed, but
458 the documentation and new-style config files should be
459 much less confusing.
460
461 Added --tag-if to allow boolean operations on tags.
462 This allows complicated logic to be clearer and more
463 general. A great suggestion from Richard Voigt.
464
465 Add broadcast/unicast information to DHCP logging.
466
467 Allow --dhcp-broadcast to be unconditional.
468
469 Fixed incorrect behaviour with NOT <tag> conditionals in
470 dhcp-options. Thanks to Max Turkewitz for assistance
471 finding this.
472
473 If we send vendor-class encapsulated options based on the
474 vendor-class supplied by the client, and no explicit
475 vendor-class option is given, echo back the vendor-class
476 from the client.
477
478 Fix bug which stopped dnsmasq from matching both a
479 circuitid and a remoteid. Thanks to Ignacio Bravo for
480 finding this.
481
482 Add --dhcp-proxy, which makes it possible to configure
483 dnsmasq to use a DHCP relay agent as a full proxy, with
484 all DHCP messages passing through the proxy. This is
485 useful if the relay adds extra information to the packets
486 it forwards, but cannot be configured with the RFC 5107
487 server-override option.
488
489 Added interface:<iface name> part to dhcp-range. The
490 semantics of this are very odd at first sight, but it
491 allows a single line of the form
492 dhcp-range=interface:virt0,192.168.0.4,192.168.0.200
493 to be added to dnsmasq configuration which then supplies
494 DHCP and DNS services to that interface, without affecting
495 what services are supplied to other interfaces and
496 irrespective of the existance or lack of
497 interface=<interface>
498 lines elsewhere in the dnsmasq configuration. The idea is
499 that such a line can be added automatically by libvirt
500 or equivalent systems, without disturbing any manual
501 configuration.
502
503 Similarly to the above, allow --enable-tftp=<interface>
504
505 Allow a TFTP root to be set separately for requests via
506 different interfaces, --tftp-root=<path>,<interface>
507
508 Correctly handle and log clashes between CNAMES and
509 DNS names being given to DHCP leases. This fixes a bug
510 which caused nonsense IP addresses to be logged. Thanks to
511 Sergei Zhirikov for finding and analysing the problem.
512
513 Tweak flush_log so as to avoid leaving the log
514 file in non-blocking mode. O_NONBLOCK is a property of the
515 file, not the process/descriptor.
516
517 Fix contrib/Solaris10/create_package
518 (/usr/man -> /usr/share/man) Thanks to Vita Batrla.
519
520 Fix a problem where, if a client got a lease, then went
521 to another subnet and got another lease, then moved back,
522 it couldn't resume the old lease, but would instead get
523 a new address. Thanks to Leonardo Rodrigues for spotting
524 this and testing the fix.
525
526 Fix weird bug which sometimes omitted certain characters
527 from the start of quoted strings in dhcp-options. Thanks
528 to Dayton Turner for spotting the problem.
529
530 Add facility to redirect some domains to the standard
531 upstream servers: this allows something like
532 --server=/google.com/1.2.3.4 --server=/www.google.com/#
533 which will send queries for *.google.com to 1.2.3.4,
534 except *www.google.com which will be forwarded as usual.
535 Thanks to AJ Weber for prompting this addition.
536
537 Improve the hash-algorithm used to generate IP addresses
538 from MAC addresses during initial DHCP address
539 allocation. This improves performance when large numbers
540 of hosts with similar MAC addresses all try and get an IP
541 address at the same time. Thanks to Paul Smith for his
542 work on this.
543
544 Tweak DHCP code so that --bridge-interface can be used to
545 select which IP alias of an interface should be used for
546 DHCP purposes on Linux. If eth0 has an alias eth0:dhcp
547 then adding --bridge-interface=eth0:dhcp,eth0 will use
548 the address of eth0:dhcp to determine the correct subnet
549 for DHCP address allocation. Thanks to Pawel Golaszewski
550 for prompting this and Eric Cooper for further testing.
551
552 Add --dhcp-generate-names. Suggestion by Ferenc Wagner.
553
554 Tweak DNS server selection algorithm when there is more
555 than one server available for a domain, eg.
556 --server=/mydomain/1.1.1.1
557 --server=/mydomain/2.2.2.2
558 Thanks to Alberto Cuesta-Canada for spotting a weakness
559 here.
560
561 Add --max-ttl. Thanks to Fredrik Ringertz for the patch.
562
563 Allow --log-facility=- to force all logging to
564 stderr. Suggestion from Clemens Fischer.
565
566 Fix regression which caused configuration like
567 --address=/.domain.com/1.2.3.4 to be rejected. The dot to the
568 left of the domain has been implied and not required for a
569 long time, but it should be accepted for backward
570 compatibility. Thanks to Andrew Burcin for spotting this.
571
572 Add --rebind-domain-ok and --rebind-localhost-ok.
573 Suggestion from Clemens Fischer.
574
575 Log replies to queries of type TXT, when --log-queries
576 is set.
577
578 Fix compiler warnings when compiled with -DNO_DHCP. Thanks
579 to Shantanu Gadgil for the patch.
580
581 Updated French translation. Thanks to Gildas Le Nadan.
582
583 Updated Polish translation. Thanks to Jan Psota.
584
585 Updated German translation. Thanks to Matthias Andree.
586
587 Added contrib/static-arp, thanks to Darren Hoo.
588
589 Fix corruption of the domain when a name from /etc/hosts
590 overrides one supplied by a DHCP client. Thanks to Fedor
591 Kozhevnikov for spotting the problem.
592
593 Updated Spanish translation. Thanks to Chris Chatham.
594
595
Simon Kelley316e2732010-01-22 20:16:09 +0000596version 2.52
597 Work around a Linux kernel bug which insists that the
598 length of the option passed to setsockopt must be at least
599 sizeof(int) bytes, even if we're calling SO_BINDTODEVICE
600 and the device name is "lo". Note that this is fixed
601 in kernel 2.6.31, but the workaround is harmless and
602 allows earlier kernels to be used. Also fix dnsmasq
603 bug which reported the wrong address when this failed.
604 Thanks to Fedor for finding this.
605
606 The API for IPv6 PKTINFO changed around Linux kernel
607 2.6.14. Workaround the case where dnsmasq is compiled
608 against newer headers, but then run on an old kernel:
609 necessary for some *WRT distros.
610
611 Re-read the set of network interfaces when re-loading
612 /etc/resolv.conf if --bind-interfaces is not set. This
613 handles the case that loopback interfaces do not exist
614 when dnsmasq is first started.
615
616 Tweak the PXE code to support port 4011. This should
617 reduce broadcasts and make things more reliable when other
618 servers are around. It also improves inter-operability
619 with certain clients.
620
621 Make a pxe-service configuration with no filename or boot
622 service type legal: this does a local boot. eg.
623 pxe-service=x86PC, "Local boot"
624
625 Be more conservative in detecting "A for A"
626 queries. Dnsmasq checks if the name in a type=A query looks
627 like a dotted-quad IP address and answers the query itself
628 if so, rather than forwarding it. Previously dnsmasq
629 relied in the library function inet_addr() to convert
630 addresses, and that will accept some things which are
631 confusing in this context, like 1.2.3 or even just
632 1234. Now we only do A for A processing for four decimal
633 numbers delimited by dots.
634
635 A couple of tweaks to fix compilation on Solaris. Thanks
636 to Joel Macklow for help with this.
637
638 Another Solaris compilation tweak, needed for Solaris
639 2009.06. Thanks to Lee Essen for that.
640
641 Added extract packaging stuff from Lee Essen to
642 contrib/Solaris10.
643
644 Increased the default limit on number of leases to 1000
645 (from 150). This is mainly a defence against DoS attacks,
646 and for the average "one for two class C networks"
647 installation, IP address exhaustion does that just as
648 well. Making the limit greater than the number of IP
649 addresses available in such an installation removes a
650 surprise which otherwise can catch people out.
651
652 Removed extraneous trailing space in the value of the
653 DNSMASQ_TIME_REMAINING DNSMASQ_LEASE_LENGTH and
654 DNSMASQ_LEASE_EXPIRES environment variables. Thanks to
655 Gildas Le Nadan for spotting this.
656
657 Provide the network-id tags for a DHCP transaction to
658 the lease-change script in the environment variable
659 DNSMASQ_TAGS. A good suggestion from Gildas Le Nadan.
660
661 Add support for RFC3925 "Vendor-Identifying Vendor
662 Options". The syntax looks like this:
663 --dhcp-option=vi-encap:<enterprise number>, .........
664
665 Add support to --dhcp-match to allow matching against
666 RFC3925 "Vendor-Identifying Vendor Classes". The syntax
667 looks like this:
668 --dhcp-match=tag,vi-encap<enterprise number>, <value>
669
670 Add some application specific code to assist in
671 implementing the Broadband forum TR069 CPE-WAN
672 specification. The details are in contrib/CPE-WAN/README
673
674 Increase the default DNS packet size limit to 4096, as
675 recommended by RFC5625 section 4.4.3. This can be
676 reconfigured using --edns-packet-max if needed. Thanks to
677 Francis Dupont for pointing this out.
678
Simon Kelley8ef5ada2010-06-03 19:42:45 +0100679 Rewrite query-ids even for TSIG signed packets, since
Simon Kelley316e2732010-01-22 20:16:09 +0000680 this is allowed by RFC5625 section 4.5.
681
682 Use getopt_long by default on OS X. It has been supported
683 since version 10.3.0. Thanks to Arek Dreyer for spotting
684 this.
685
686 Added up-to-date startup configuration for MacOSX/launchd
687 in contrib/MacOSX-launchd. Thanks to Arek Dreyer for
688 providing this.
689
690 Fix link error when including Dbus but excluding DHCP.
691 Thanks to Oschtan for the bug report.
692
693 Updated French translation. Thanks to Gildas Le Nadan.
694
695 Updated Polish translation. Thanks to Jan Psota.
696
697 Updated Spanish translation. Thanks to Chris Chatham.
698
Simon Kelley8ef5ada2010-06-03 19:42:45 +0100699 Fixed confusion about domains, when looking up DHCP hosts
700 in /etc/hosts. This could cause spurious "Ignoring
701 domain..." messages. Thanks to Fedor Kozhevnikov for
702 finding and analysing the problem.
Simon Kelley316e2732010-01-22 20:16:09 +0000703
Simon Kelley8ef5ada2010-06-03 19:42:45 +0100704
Simon Kelley1f15b812009-10-13 17:49:32 +0100705version 2.51
706 Add support for internationalised DNS. Non-ASCII characters
707 in domain names found in /etc/hosts, /etc/ethers and
708 /etc/dnsmasq.conf will be correctly handled by translation to
709 punycode, as specified in RFC3490. This function is only
710 available if dnsmasq is compiled with internationalisation
711 support, and adds a dependency on GNU libidn. Without i18n
712 support, dnsmasq continues to be compilable with just
713 standard tools. Thanks to Yves Dorfsman for the
714 suggestion.
715
716 Add two more environment variables for lease-change scripts:
717 First, DNSMASQ_SUPPLIED_HOSTNAME; this is set to the hostname
718 supplied by a client, even if the actual hostname used is
719 over-ridden by dhcp-host or dhcp-ignore-names directives.
720 Also DNSMASQ_RELAY_ADDRESS which gives the address of
721 a DHCP relay, if used.
722 Suggestions from Michael Rack.
723
724 Fix regression which broke echo of relay-agent
725 options. Thanks to Michael Rack for spotting this.
726
727 Don't treat option 67 as being interchangeable with
728 dhcp-boot parameters if it's specified as
729 dhcp-option-force.
730
731 Make the code to call scripts on lease-change compile-time
732 optional. It can be switched off by editing src/config.h
733 or building with "make COPTS=-DNO_SCRIPT".
734
735 Make the TFTP server cope with filenames from Windows/DOS
736 which use '\' as pathname separator. Thanks to Ralf for
737 the patch.
738
739 Updated Polish translation. Thanks to Jan Psota.
740
741 Warn if an IP address is duplicated in /etc/ethers. Thanks
742 to Felix Schwarz for pointing this out.
743
744 Teach --conf-dir to take an option list of file suffices
745 which will be ignored when scanning the directory. Useful
746 for backup files etc. Thanks to Helmut Hullen for the
747 suggestion.
748
749 Add new DHCP option named tftpserver-address, which
750 corresponds to the third argument of dhcp-boot. This
751 allows the complete functionality of dhcp-boot to be
752 replicated with dhcp-option. Useful when using
753 dhcp-optsfile.
754
755 Test which upstream nameserver to use every 10 seconds
756 or 50 queries and not just when a query times out and
757 is retried. This should improve performance when there
758 is a slow nameserver in the list. Thanks to Joe for the
759 suggestion.
760
761 Don't do any PXE processing, even for clients with the
762 correct vendorclass, unless at least one pxe-prompt or
763 pxe-service option is given. This stops dnsmasq
764 interfering with proxy PXE subsystems when it is just
765 the DHCP server. Thanks to Spencer Clark for spotting this.
766
767 Limit the blocksize used for TFTP transfers to a value
768 which avoids packet fragmentation, based on the MTU of the
769 local interface. Many netboot ROMs can't cope with
770 fragmented packets.
771
772 Honour dhcp-ignore configuration for PXE and proxy-PXE
773 requests. Thanks to Niels Basjes for the bug report.
774
775 Updated French translation. Thanks to Gildas Le Nadan.
776
777
Simon Kelley77e94da2009-08-31 17:32:17 +0100778version 2.50
Simon Kelley1f15b812009-10-13 17:49:32 +0100779 Fix security problem which allowed any host permitted to
Simon Kelley77e94da2009-08-31 17:32:17 +0100780 do TFTP to possibly compromise dnsmasq by remote buffer
781 overflow when TFTP enabled. Thanks to Core Security
782 Technologies and Iván Arce, Pablo Hernán Jorge, Alejandro
783 Pablo Rodriguez, Martín Coco, Alberto Soliño Testa and
784 Pablo Annetta. This problem has Bugtraq id: 36121
785 and CVE: 2009-2957
786
787 Fix a problem which allowed a malicious TFTP client to
788 crash dnsmasq. Thanks to Steve Grubb at Red Hat for
789 spotting this. This problem has Bugtraq id: 36120 and
790 CVE: 2009-2958
791
792
Simon Kelley03a97b62009-06-10 20:55:49 +0100793version 2.49
794 Fix regression in 2.48 which disables the lease-change
795 script. Thanks to Jose Luis Duran for spotting this.
796
797 Log TFTP "file not found" errors. These were not logged,
798 since a normal PXELinux boot generates many of them, but
799 the lack of the messages seems to be more confusing than
800 routinely seeing them when there is no real error.
801
802 Update Spanish translation. Thanks to Chris Chatham.
803
804
Simon Kelley7622fc02009-06-04 20:32:05 +0100805version 2.48
806 Archived the extensive, backwards, changelog to
807 CHANGELOG.archive. The current changelog now runs from
808 version 2.43 and runs conventionally.
Simon Kelley9e4abcb2004-01-22 19:47:41 +0000809
Simon Kelley7622fc02009-06-04 20:32:05 +0100810 Fixed bug which broke binding of servers to physical
811 interfaces when interface names were longer than four
812 characters. Thanks to MURASE Katsunori for the patch.
Simon Kelley9e4abcb2004-01-22 19:47:41 +0000813
Simon Kelley7622fc02009-06-04 20:32:05 +0100814 Fixed netlink code to check that messages come from the
815 correct source, and not another userspace process. Thanks
816 to Steve Grubb for the patch.
Simon Kelley9e4abcb2004-01-22 19:47:41 +0000817
Simon Kelley7622fc02009-06-04 20:32:05 +0100818 Maintainability drive: removed bug and missing feature
819 workarounds for some old platforms. Solaris 9, OpenBSD
820 older than 4.1, Glibc older than 2.2, Linux 2.2.x and
821 DBus older than 1.1.x are no longer supported.
Simon Kelley9e4abcb2004-01-22 19:47:41 +0000822
Simon Kelley7622fc02009-06-04 20:32:05 +0100823 Don't read included configuration files more than once:
824 allows complex configuration structures without problems.
Simon Kelley9e4abcb2004-01-22 19:47:41 +0000825
Simon Kelley7622fc02009-06-04 20:32:05 +0100826 Mark log messages from the various subsystems in dnsmasq:
827 messages from the DHCP subsystem now have the ident string
828 "dnsmasq-dhcp" and messages from TFTP have ident
829 "dnsmasq-tftp". Thanks to Olaf Westrik for the patch.
Simon Kelley9e4abcb2004-01-22 19:47:41 +0000830
Simon Kelley7622fc02009-06-04 20:32:05 +0100831 Fix possible infinite DHCP protocol loop when an IP
832 address nailed to a hostname (not a MAC address) and a
833 host sometimes provides the name, sometimes not.
Simon Kelley9e4abcb2004-01-22 19:47:41 +0000834
Simon Kelley7622fc02009-06-04 20:32:05 +0100835 Allow --addn-hosts to take a directory: all the files
836 in the directory are read. Thanks to Phil Cornelius for
837 the suggestion.
Simon Kelley9e4abcb2004-01-22 19:47:41 +0000838
Simon Kelley7622fc02009-06-04 20:32:05 +0100839 Support --bridge-interface on all platforms, not just BSD.
Simon Kelley1ab84e22004-01-29 16:48:35 +0000840
Simon Kelley7622fc02009-06-04 20:32:05 +0100841 Added support for advanced PXE functions. It's now
842 possible to define a prompt and menu options which will
843 be displayed when a client PXE boots. It's also possible to
844 hand-off booting to other boot servers. Proxy-DHCP, where
845 dnsmasq just supplies the PXE information and another DHCP
846 server does address allocation, is also allowed. See the
847 --pxe-prompt and --pxe-service keywords. Thanks to
848 Alkis Georgopoulos for the suggestion and Guilherme Moro
849 and Michael Brown for assistance.
Simon Kelley1ab84e22004-01-29 16:48:35 +0000850
Simon Kelley7622fc02009-06-04 20:32:05 +0100851 Improvements to DHCP logging. Thanks to Tom Metro for
852 useful suggestions.
853
854 Add ability to build dnsmasq without DHCP support. To do
855 this, edit src/config.h or build with
856 "make COPTS=-DNO_DHCP". Thanks to Mahavir Jain for the patch.
857
858 Added --test command-line switch - syntax check
859 configuration files only.
Simon Kelley33820b72004-04-03 21:10:00 +0100860
Simon Kelley7622fc02009-06-04 20:32:05 +0100861 Updated French translation. Thanks to Gildas Le Nadan.
Simon Kelley9009d742008-11-14 20:04:27 +0000862
Simon Kelley73a08a22009-02-05 20:28:08 +0000863
864version 2.47
865 Updated French translation. Thanks to Gildas Le Nadan.
866
867 Fixed interface enumeration code to work on NetBSD
868 5.0. Thanks to Roy Marples for the patch.
869
870 Updated config.h to use the same location for the lease
871 file on NetBSD as the other *BSD variants. Also allow
872 LEASEFILE and CONFFILE symbols to be overriden in CFLAGS.
873
874 Handle duplicate address detection on IPv6 more
875 intelligently. In IPv6, an interface can have an address
876 which is not usable, because it is still undergoing DAD
877 (such addresses are marked "tentative"). Attempting to
878 bind to an address in this state returns an error,
879 EADDRNOTAVAIL. Previously, on getting such an error,
880 dnsmasq would silently abandon the address, and never
881 listen on it. Now, it retries once per second for 20
882 seconds before generating a fatal error. 20 seconds should
883 be long enough for any DAD process to complete, but can be
884 adjusted in src/config.h if necessary. Thanks to Martin
885 Krafft for the bug report.
886
887 Add DBus introspection. Patch from Jeremy Laine.
888
889 Update Dbus configuration file. Patch from Colin Walters.
890 Fix for this bug:
891 http://bugs.freedesktop.org/show_bug.cgi?id=18961
892
893 Support arbitrarily encapsulated DHCP options, suggestion
894 and initial patch from Samium Gromoff. This is useful for
895 (eg) gPXE, which expect all its private options to be
896 encapsulated inside a single option 175. So, eg,
897
898 dhcp-option = encap:175, 190, "iscsi-client0"
899 dhcp-option = encap:175, 191, "iscsi-client0-secret"
900
901 will provide iSCSI parameters to gPXE.
902
903 Enhance --dhcp-match to allow testing of the contents of a
904 client-sent option, as well as its presence. This
905 application in mind for this is RFC 4578
906 client-architecture specifiers, but it's generally useful.
907 Joey Korkames suggested the enhancement.
908
909 Move from using the IP_XMIT_IF ioctl to IP_BOUND_IF on
910 OpenSolaris. Thanks to Bastian Machek for the heads-up.
911
912 No longer complain about blank lines in
913 /etc/ethers. Thanks to Jon Nelson for the patch.
914
915 Fix binding of servers to physical devices, eg
916 --server=/domain/1.2.3.4@eth0 which was broken from 2.43
917 onwards unless --query-port=0 set. Thanks to Peter Naulls
918 for the bug report.
919
920 Reply to DHCPINFORM requests even when the supplied ciaddr
921 doesn't fall in any dhcp-range. In this case it's not
922 possible to supply a complete configuration, but
923 individually-configured options (eg PAC) may be useful.
924
925 Allow the source address of an alias to be a range:
926 --alias=192.168.0.0,10.0.0.0,255.255.255.0 maps the whole
927 subnet 192.168.0.0->192.168.0.255 to 10.0.0.0->10.0.0.255,
928 as before.
929 --alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
930 maps only the 192.168.0.10->192.168.0.40 region. Thanks to
931 Ib Uhrskov for the suggestion.
932
933 Don't dynamically allocate DHCP addresses which may break
934 Windows. Addresses which end in .255 or .0 are broken in
935 Windows even when using supernetting.
936 --dhcp-range=192.168.0.1,192.168.1.254,255,255,254.0 means
937 192.168.0.255 is a valid IP address, but not for Windows.
938 See Microsoft KB281579. We therefore no longer allocate
939 these addresses to avoid hard-to-diagnose problems.
940
941 Update Polish translation. Thanks to Jan Psota.
942
943 Delete the PID-file when dnsmasq shuts down. Note that by
944 this time, dnsmasq is normally not running as root, so
945 this will fail if the PID-file is stored in a root-owned
946 directory; such failure is silently ignored. To take
947 advantage of this feature, the PID-file must be stored in a
948 directory owned and write-able by the user running
949 dnsmasq.
Simon Kelley7622fc02009-06-04 20:32:05 +0100950
951
952version 2.46
953 Allow --bootp-dynamic to take a netid tag, so that it may
954 be selectively enabled. Thanks to Olaf Westrik for the
955 suggestion.
956
957 Remove ISC-leasefile reading code. This has been
958 deprecated for a long time, and last time I removed it, it
959 ended up going back by request of one user. This time,
960 it's gone for good; otherwise it would need to be
961 re-worked to support multiple domains (see below).
962
963 Support DHCP clients in multiple DNS domains. This is a
964 long-standing request. Clients are assigned to a domain
965 based in their IP address.
966
967 Add --dhcp-fqdn flag, which changes behaviour if DNS names
968 assigned to DHCP clients. When this is set, there must be
969 a domain associated with each client, and only
970 fully-qualified domain names are added to the DNS. The
971 advantage is that the only the FQDN needs to be unique,
972 so that two or more DHCP clients can share a hostname, as
973 long as they are in different domains.
974
975 Set environment variable DNSMASQ_DOMAIN when invoking
976 lease-change script. This may be useful information to
977 have now that it's variable.
978
979 Tighten up data-checking code for DNS packet
980 handling. Thanks to Steve Dodd who found certain illegal
981 packets which could crash dnsmasq. No memory overwrite was
982 possible, so this is not a security issue beyond the DoS
983 potential.
984
985 Update example config dhcp option 47, the previous
986 suggestion generated an illegal, zero-length,
987 option. Thanks to Matthias Andree for finding this.
988
989 Rewrite hosts-file reading code to remove the limit of
990 1024 characters per line. John C Meuser found this.
991
992 Create a net-id tag with the name of the interface on
993 which the DHCP request was received.
994
995 Fixed minor memory leak in DBus code, thanks to Jeremy
996 Laine for the patch.
997
998 Emit DBus signals as the DHCP lease database
999 changes. Thanks to Jeremy Laine for the patch.
1000
1001 Allow for more that one MAC address in a dhcp-host
1002 line. This configuration tells dnsmasq that it's OK to
1003 abandon a DHCP lease of the fixed address to one MAC
1004 address, if another MAC address in the dhcp-host statement
1005 asks for an address. This is useful to give a fixed
1006 address to a host which has two network interfaces
1007 (say, a laptop with wired and wireless interfaces.)
1008 It's very important to ensure that only one interface
1009 at a time is up, since dnsmasq abandons the first lease
1010 and re-uses the address before the leased time has
1011 elapsed. John Gray suggested this.
1012
1013 Tweak the response to a DHCP request packet with a wrong
1014 server-id when --dhcp-authoritative is set; dnsmasq now
1015 returns a DHCPNAK, rather than silently ignoring the
1016 packet. Thanks to Chris Marget for spotting this
1017 improvement.
1018
1019 Add --cname option. This provides a limited alias
1020 function, usable for DHCP names. Thanks to AJ Weber for
1021 suggestions on this.
1022
1023 Updated contrib/webmin with latest version from Neil
1024 Fisher.
1025
1026 Updated Polish translation. Thanks to Jan Psota.
1027
1028 Correct the text names for DHCP options 64 and 65 to be
1029 "nis+-domain" and "nis+-servers".
1030
1031 Updated Spanish translation. Thanks to Chris Chatham.
1032
1033 Force re-reading of /etc/resolv.conf when an "interface
1034 up" event occurs.
1035
1036
1037version 2.45
1038 Fix total DNS failure in release 2.44 unless --min-port
1039 specified. Thanks to Steven Barth and Grant Coady for
1040 bugreport. Also reject out-of-range port spec, which could
1041 break things too: suggestion from Gilles Espinasse.
1042
1043
1044version 2.44
1045 Fix crash when unknown client attempts to renew a DHCP
1046 lease, problem introduced in version 2.43. Thanks to
1047 Carlos Carvalho for help chasing this down.
1048
1049 Fix potential crash when a host which doesn't have a lease
1050 does DHCPINFORM. Again introduced in 2.43. This bug has
1051 never been reported in the wild.
1052
1053 Fix crash in netlink code introduced in 2.43. Thanks to
1054 Jean Wolter for finding this.
1055
1056 Change implementation of min_port to work even if min-port
1057 is large.
1058
1059 Patch to enable compilation of latest Mac OS X. Thanks to
1060 David Gilman.
1061
1062 Update Spanish translation. Thanks to Christopher Chatham.
1063
1064
1065version 2.43
1066 Updated Polish translation. Thanks to Jan Psota.
1067
1068 Flag errors when configuration options are repeated
1069 illegally.
1070
1071 Further tweaks for GNU/kFreeBSD
1072
1073 Add --no-wrap to msgmerge call - provides nicer .po file
1074 format.
1075
1076 Honour lease-time spec in dhcp-host lines even for
1077 BOOTP. The user is assumed to known what they are doing in
1078 this case. (Hosts without the time spec still get infinite
1079 leases for BOOTP, over-riding the default in the
1080 dhcp-range.) Thanks to Peter Katzmann for uncovering this.
1081
1082 Fix problem matching relay-agent ids. Thanks to Michael
1083 Rack for the bug report.
1084
1085 Add --naptr-record option. Suggestion from Johan
1086 Bergquist.
1087
1088 Implement RFC 5107 server-id-override DHCP relay agent
1089 option.
1090
1091 Apply patches from Stefan Kruger for compilation on
1092 Solaris 10 under Sun studio.
1093
1094 Yet more tweaking of Linux capability code, to suppress
1095 pointless wingeing from kernel 2.6.25 and above.
1096
1097 Improve error checking during startup. Previously, some
1098 errors which occurred during startup would be worked
1099 around, with dnsmasq still starting up. Some were logged,
1100 some silent. Now, they all cause a fatal error and dnsmasq
1101 terminates with a non-zero exit code. The errors are those
1102 associated with changing uid and gid, setting process
1103 capabilities and writing the pidfile. Thanks to Uwe
1104 Gansert and the Suse security team for pointing out
1105 this improvement, and Bill Reimers for good implementation
1106 suggestions.
1107
1108 Provide NO_LARGEFILE compile option to switch off largefile
1109 support when compiling against versions of uclibc which
1110 don't support it. Thanks to Stephane Billiart for the patch.
1111
1112 Implement random source ports for interactions with
1113 upstream nameservers. New spoofing attacks have been found
1114 against nameservers which do not do this, though it is not
1115 clear if dnsmasq is vulnerable, since to doesn't implement
1116 recursion. By default dnsmasq will now use a different
1117 source port (and socket) for each query it sends
1118 upstream. This behaviour can suppressed using the
1119 --query-port option, and the old default behaviour
1120 restored using --query-port=0. Explicit source-port
1121 specifications in --server configs are still honoured.
1122
1123 Replace the random number generator, for better
1124 security. On most BSD systems, dnsmasq uses the
1125 arc4random() RNG, which is secure, but on other platforms,
1126 it relied on the C-library RNG, which may be
1127 guessable and therefore allow spoofing. This release
1128 replaces the libc RNG with the SURF RNG, from Daniel
1129 J. Berstein's DJBDNS package.
1130
1131 Don't attempt to change user or group or set capabilities
1132 if dnsmasq is run as a non-root user. Without this, the
1133 change from soft to hard errors when these fail causes
1134 problems for non-root daemons listening on high
1135 ports. Thanks to Patrick McLean for spotting this.
1136
1137 Updated French translation. Thanks to Gildas Le Nadan.
Simon Kelley1f15b812009-10-13 17:49:32 +01001138
1139
1140version 2.42
1141 The changelog for version 2.42 and earlier is
1142 available in CHANGELOG.archive.