1 dbus 1.12.14 (UNRELEASED)
2 =========================
6 dbus 1.12.12 (2018-12-04)
7 =========================
9 The “draconic disciple” release.
11 dbus version control is now hosted on freedesktop.org's Gitlab
12 installation, and bug reports and feature requests have switched from
13 Bugzilla bugs (indicated by "fd.o #nnn") to Gitlab issues ("dbus#nnn")
14 and merge requests ("dbus!nnn").
18 • Reference the freedesktop.org Code of Conduct (Simon McVittie)
22 • Stop the dbus-daemon leaking memory (an error message) if delivering
23 the message that triggered auto-activation is forbidden. This is
24 technically a denial of service because the dbus-daemon will
25 run out of memory eventually, but it's a very slow and noisy one,
26 because all the rejected messages are also very likely to have
27 been logged to the system log, and its scope is typically limited by
28 the finite number of activatable services available.
29 (dbus#234, Simon McVittie)
31 • Remove __attribute__((__malloc__)) attribute on dbus_realloc(),
32 which does not meet the criteria for that attribute in gcc 4.7+,
33 potentially leading to miscompilation (fd.o #107741, Simon McVittie)
35 • Fix some small O(1) memory leaks (fd.o #107320, Simon McVittie)
37 • Fix printf formats for pointer-sized integers on 64-bit Windows
38 (fd.o #105662, Ralf Habacker)
40 • Always use select()-based poll() emulation on Darwin-based OSs
41 (macOS, etc.) and on Interix, similar to what libcurl does
42 (dbus#232, dbus!19; Simon McVittie)
44 • Extend a test timeout to avoid spurious failures in CI
45 (dbus!26, Simon McVittie)
49 • Add Travis-CI builds for 64-bit Windows using mingw-w64
50 (fd.o #105662, Ralf Habacker)
52 • Add Gitlab-CI integration (fd.o #108177, Simon McVittie)
54 dbus 1.12.10 (2018-08-02)
55 =========================
57 The “beam deflection” release.
61 • Prevent reading up to 3 bytes beyond the end of a truncated message.
62 This could in principle be an information leak or denial of service
63 on the system bus, but is not believed to be exploitable to crash
64 the system bus or leak interesting information in practice.
65 (fd.o #107332, Simon McVittie)
67 • Fix build with gcc 8 -Werror=cast-function-type
68 (fd.o #107349, Simon McVittie)
70 • Fix warning from gcc 8 about suspicious use of strncpy() when
71 populating struct sockaddr_un (fd.o #107350, Simon McVittie)
73 • Fix a minor memory leak when a DBusServer listens on a new address
74 (fd.o #107194, Simon McVittie)
76 • Fix an invalid NULL argument to rmdir() if a nonce-tcp DBusServer
77 runs out of memory (fd.o #107194, Simon McVittie)
79 • Don't use misleading errno-derived error names if getaddrinfo() or
80 getnameinfo() fails with a code other than EAI_SYSTEM
81 (fd.o #106395, Simon McVittie)
83 • Skip tests that require working TCP if we are in a container environment
84 where 127.0.0.1 cannot be resolved (fd.o #106812, Simon McVittie)
86 dbus 1.12.8 (2018-04-30)
87 ========================
89 The “golden super-velociraptor” release.
93 • The Devhelp documentation index is now in version 2 format
94 (fd.o #106186, Simon McVittie)
96 • Give the dbus-daemon man page some scarier warnings about
97 <allow_anonymous/> and non-local TCP, which are insecure and should
98 not be used, particularly for the standard system and session buses
99 (fd.o #106004, Simon McVittie)
103 • Fix installation of Ducktype documentation with newer yelp-build
104 versions (fd.o #106171, Simon McVittie)
106 dbus 1.12.6 (2018-03-01)
107 ========================
109 The “just the one swan, actually” release.
113 • Increase system dbus-daemon's RLIMIT_NOFILE rlimit before it drops
114 privileges, because it won't have permission afterwards. This fixes a
115 regression in dbus 1.10.18 and 1.11.0 which made the standard system bus
116 more susceptible to deliberate or accidental denial of service.
117 (fd.o #105165, David King)
119 dbus 1.12.4 (2018-02-08)
120 ========================
122 The “Stria Campania 115” release.
126 • When iterating the DBusConnection while blocking on a pending call,
127 don't wait for I/O if that pending call already has a result; and make
128 sure that whether it has a result is propagated in a thread-safe way.
129 This prevents certain multi-threaded calling patterns from blocking
130 until their timeout even when they should have succeeded sooner.
131 (fd.o #102839; Manish Narang, Michael Searle)
133 • Report the correct error if OOM is reached while trying to listen
134 on a TCP socket (fd.o #89104, Simon McVittie)
136 • Fix assertion failures in recovery from OOM while setting up a
137 DBusServer (fd.o #89104, Simon McVittie)
139 • Add a missing space to a warning message (fd.o #103729, Thomas Zajic)
141 • Expand ${bindir} correctly when pkg-config is asked for dbus_daemondir
142 (fd.o #104265, Benedikt Heine)
144 • On Linux systems with systemd < 237, if ${localstatedir}/dbus doesn't
145 exist, create it before trying to create ${localstatedir}/dbus/machine-id
146 (fd.o #104577, Chris Lesiak)
148 • Fix escaping in dbus-api-design document (fd.o #104925, Philip Withnall)
150 dbus 1.12.2 (2017-11-13)
151 ========================
153 The “spider pumpkin” release.
157 • Log a warning if a new connection cannot be accepted due to an
158 out-of-memory condition or failure to identify its AppArmor or
159 SELinux context (fd.o #103592, Simon McVittie)
163 • Make use of $(MKDIR_P) compatible with install-sh, fixing build when a
164 GNU-compatible `mkdir -p` is not available (fd.o #103521, ilovezfs)
166 • When building for Windows with Autotools, avoid `echo -e`, fixing
167 cross-compilation on non-GNU platforms like macOS
168 (fd.o #103493, Tony Theodore)
170 • Fix crashes in the server side of the nonce-tcp: transport under
171 various error conditions. This transport should normally only be used
172 on Windows, where AF_UNIX sockets are unavailable; the unix: transport
173 is the only one recommended for production use on Unix platforms.
174 (fd.o #103597, Simon McVittie)
178 • Improve test coverage on Travis-CI (Simon McVittie)
180 dbus 1.12.0 (2017-10-30)
181 ========================
183 The “gingerbread skull” release.
185 1.12.x is a new stable branch, recommended for use in OS
188 Summary of major changes between 1.10.x and 1.12.0
189 --------------------------------------------------
193 • Expat >= 2.1.0 is required.
194 • GLib >= 2.40 is required if full test coverage is enabled.
195 • [Linux] libselinux >= 2.0.86 is required if SELinux support is
197 • [Unix] dbus now requires an <inttypes.h> that defines C99 constants
198 such as PRId64 and PRIu64, except when building for Windows.
199 • [Autotools] Building from git (but not from tarballs) with Autotools
200 now requires macros from the GNU Autoconf Archive.
201 • [CMake] Builds done using CMake now require CMake 3.0.2.
203 Build-time configuration changes:
205 • Expat is now found using pkg-config. See the release notes for
207 • The --disable-compiler-optimisations and --enable-compiler-coverage
208 options no longer exist. See the release notes for 1.11.4 and 1.11.8.
209 • [Unix] The --enable-abstract-sockets and --disable-abstract-sockets
210 options no longer exist. See the release notes for 1.11.20.
211 • [Unix] Flag files in /var/run/console/${username} are no longer
212 checked for at_console by default. See the release notes for 1.11.18.
213 • [Unix, Cygwin] Init scripts are no longer provided by upstream dbus,
214 and packagers will now need to add these downstream (most already do).
215 See the release notes for 1.11.18.
216 • [Unix] The process ID file no longer has a different default location
217 on Red Hat derivatives. See the release notes for 1.11.18.
218 • [Unix] ${runstatedir} is now independent of ${localstatedir} with
219 recent Autotools versions. See the release notes for 1.11.16.
220 • [Windows] The WINDRES variable is no longer used. See the release
225 • Eavesdropping is officially deprecated in favour of BecomeMonitor.
226 See the release notes for spec version 0.31 (in dbus 1.11.14).
227 • [Unix] Flag files in /var/run/console/${username} are deprecated.
228 See the release notes for 1.11.18.
232 • <allow> and <deny> rules in dbus-daemon configuration can now
233 include send_broadcast="true", send_broadcast="false",
234 max_unix_fds="N", min_unix_fds="N" (for some integer N).
235 See the release notes for 1.11.18.
236 • dbus_try_get_local_machine_id() is like
237 dbus_get_local_machine_id(), but returns a DBusError.
238 • New APIs around DBusMessageIter to simplify cleanup.
239 See the release notes for 1.11.16.
240 • The message bus daemon now implements the standard Introspectable,
241 Peer and Properties interfaces. See the release notes for
242 dbus 1.11.14 and spec version 0.31.
243 • DTDs for introspection XML and bus configuration are installed.
244 • dbus can be compiled to be relocatable, making it more suitable for
245 binary bundling with other software. On Windows, this is on by
247 • [Unix] A new unix:dir=… address family resembles unix:tmpdir=… but
248 never uses Linux abstract sockets, which is advantageous for
249 containers. On non-Linux it is equivalent to unix:tmpdir=….
250 See the release notes for dbus 1.11.14 and spec version 0.31.
251 • [Unix] New option "dbus-launch --exit-with-x11".
252 • [Unix] Session managers can create transient .service files in
253 $XDG_RUNTIME_DIR/dbus-1/services. See the release notes for 1.11.12.
254 • [Unix] A sysusers.d snippet can create the messagebus user on-demand.
256 Miscellaneous behaviour changes:
258 • [Unix] The session bus now logs to syslog if it was started by
260 • [Unix] Internal warnings are logged to syslog if configured.
261 • [Unix] Exceeding an anti-DoS limit is logged to syslog if configured,
264 Changes since 1.11.22 release candidate
265 ---------------------------------------
267 Standard stable-branch changes:
269 • Disable warnings about use of deprecated functions (Simon McVittie)
273 • Don't distribute files generated by ./configure in the source tarball
274 (fd.o #103420, Simon McVittie)
278 • Remove some unused files from the git repository
279 (fd.o #103420, Simon McVittie)
281 D-Bus 1.11.22 (2017-10-23)
282 ==========================
284 The “fire surface” release.
286 This is the first release-candidate for the 1.12.0 stable release.
288 Build-time configuration changes:
290 • When building for Windows with Autotools, setting the WINDRES variable
291 no longer works to select a non-standard resource compiler. Use
292 libtool's standard RC variable instead, for example
293 "./configure RC=i686-w64-mingw32-windres"
297 • Builds done using CMake now require CMake 3.0.2.
301 • When building for Windows, improve quality of metadata in
302 libdbus-1-3.dll (fd.o #103015, Ralf Habacker)
306 • Fix a typo "uint 16" in dbus-send(1) man page
307 (fd.o #103075, David King)
309 • When building for Windows, libdbus-1-3.dll always includes version
310 information. Previously, this was missing if using CMake and any
311 non-MSVC compiler. (fd.o #103015, Ralf Habacker)
313 • Fix the build with MSVC, which regressed with the #102558 fix in
314 1.11.20. (fd.o #102558, Ralf Habacker)
318 • Simplify Windows resource embedding
319 (fd.o #103015, Simon McVittie)
321 D-Bus 1.11.20 (2017-10-03)
324 The “wraith stun” release.
326 Build-time configuration changes:
328 • The --enable-abstract-sockets and --disable-abstract-sockets options
329 no longer exist. Support for Linux's abstract AF_UNIX sockets is now
330 unconditionally enabled on Linux and disabled everywhere else.
331 (fd.o #34905, Simon McVittie)
335 • Make slower tests less likely to time out, and improve diagnostics if
336 tests do time out (fd.o #103009, Simon McVittie)
338 • On Windows, don't compile an unused stub implementation of
339 _dbus_set_signal_handler() (fd.o #103010, Simon McVittie)
343 • Be more careful to save and restore errno in POSIX async signal
344 handlers (fd.o #103010, Simon McVittie)
346 • On Windows, embed a manifest in dbus-update-activation-environment.exe
347 so that the heuristics used for UAC do not assume it needs elevated
348 privileges due to its name containing "update"
349 (fd.o #102558, Ralf Habacker)
351 • On Windows with Automake, embed version information in libdbus-1,
352 as was meant to happen in all versions since 2009
353 (fd.o #103015, Simon McVittie)
355 D-Bus 1.11.18 (2017-09-25)
358 The “vampire conquistador” release.
360 Build-time configuration changes:
362 • By default, dbus-daemon on Unix no longer checks for flag files
363 /var/run/console/${username} created by the obsolete pam_console and
364 pam_foreground PAM modules when deciding whether ${username} is
365 currently at the console. The old default behaviour can be restored
366 by specifying --with-console-auth-dir=/var/run/console in the
367 recommended Autotools build system, or
368 -DDBUS_CONSOLE_AUTH_DIR=/var/run/console in CMake. This feature is
369 now deprecated, and will be removed in dbus 1.13 unless feedback via
370 fd.o #101629 indicates that this would be problematic.
371 (fd.o #101629, Simon McVittie)
373 • LSB-style init scripts for Red Hat and Slackware, and a non-LSB init
374 script for Cygwin, are no longer provided in the upstream dbus
375 source. We recommend that distributors who support non-systemd service
376 management should maintain their own init scripts or other service
377 manager integration as part of their downstream packaging, similar to
378 the way Debian distributes a Debian-specific LSB init script for dbus.
380 The systemd unit continues to be maintained as part of the upstream
381 dbus source, because it receives regular testing and maintenance.
383 (fd.o #101706, Simon McVittie)
385 • The process ID file created by the system bus is no longer influenced
386 by the --with-init-scripts=redhat configure option or the presence of
387 /etc/redhat-release at build time. If your OS's init script or other
388 service management relies on the Red Hat-style pid file, it can be
389 restored by specifying --with-system-pid-file=/run/messagebus.pid at
390 configure time or using the <pidfile> directive in bus configuration.
392 Note that the upstream-supplied systemd unit runs dbus-daemon with
393 the --nopidfile option, so it does not normally write a pid file,
394 regardless of whether the OS is Red-Hat-derived or not.
396 (fd.o #101706, Simon McVittie)
400 • <allow> and <deny> rules in dbus-daemon configuration can now
401 include send_broadcast="true" or send_broadcast="false", which make
402 the rule only match broadcast signals, or only match messages that
403 are not broadcast signals, respectively.
404 (fd.o #29853, Simon McVittie)
406 • <allow> and <deny> rules can now be configured to apply only to
407 messages with or without Unix file descriptors attached. This would
408 typically be used in rules like these:
409 <allow send_destination="..." max_unix_fds="0"/>
410 <deny send_destination="..." min_unix_fds="1"/>
411 <deny receive_sender="..." min_unix_fds="1"/>
412 but can also be used to set a nonzero upper limit on the number of
414 <allow send_destination="..." max_unix_fds="4"/>
415 (fd.o #101848, Simon McVittie)
417 • On Unix platforms, the DBUS_COOKIE_SHA1 authentication mechanism
418 now respects the HOME environment variable on the client side, and
419 on the server side when the uid attempting to connect is the same
420 as the uid of the server. This allows the automated tests to pass in
421 environments where the user's "official" home directory in /etc/passwd
422 is nonexistent, such as Debian autobuilders.
423 (fd.o #101960, Simon McVittie)
427 • When parsing dbus-daemon configuration, tell Expat not to use
428 cryptographic-quality entropy as a salt for its hash tables: we trust
429 the configuration files, so we are not concerned about algorithmic
430 complexity attacks via hash table collisions. This prevents
431 dbus-daemon --system from holding up the boot process (and causing
432 early-boot system services like systemd, logind, networkd to time
433 out) on entropy-starved embedded systems.
434 (fd.o #101858, Simon McVittie)
436 • Avoid a -Werror=declaration-after-statement build failure on Solaris
437 (fd.o #102145, Alan Coopersmith)
439 • On Unix platform, drop DBUS_SYSTEM_LOG_INFO messages from LOG_NOTICE
440 to LOG_INFO, matching how we use this log level in practice
441 (fd.o #102686, Simon McVittie)
443 D-Bus 1.11.16 (2017-07-27)
446 The “south facing garden” release.
448 Build-time configuration changes:
450 • The Autotools build system now supports varying ${runstatedir}
451 independently of ${localstatedir}, if using an Autoconf version
452 that has that feature; version 2.70 will eventually have this, but
453 many Linux distributions add it to version 2.69 as a patch.
454 A typical use is to set prefix=/usr, sysconfdir=/etc, localstatedir=/var
455 and runstatedir=/run. (fd.o #101569, Simon McVittie)
459 • New APIs DBUS_MESSAGE_ITER_INIT_CLOSED, dbus_message_iter_init_closed()
460 and dbus_message_iter_abandon_container_if_open() simplify the
461 single-exit-point ("goto out") style of resource cleanup. The API
462 documentation around DBusMessageIter and containers has also been
463 clarified. (fd.o #101568, Simon McVittie)
467 • Fix the implementation of re-enabling a timeout (again) so that its
468 countdown is always restarted as intended. (fd.o #95619,
471 • Make the dbus-daemon's Properties interface, as introduced in 1.11.14,
472 available to all users on the system bus (fd.o #101700, Simon McVittie)
474 • dbus_message_iter_append_basic() no longer leaks memory if it fails to
475 append a file descriptor to a message. (fd.o #101568, Simon McVittie)
477 • dbus_message_iter_open_container() no longer leaks memory if it runs out
478 of memory. (fd.o #101568, Simon McVittie)
480 • dbus_message_append_args_valist() no longer leaks memory if given an
481 unsupported type. This situation is still considered to be a programming
482 error which needs to be corrected by the user of libdbus.
483 (fd.o #101568, Simon McVittie)
485 • dbus_message_iter_append_basic() and dbus_message_iter_open_container()
486 will no longer report that their arguments were invalid if they run out
487 of memory at exactly the wrong time. (fd.o #101568, Simon McVittie)
489 • Ensure that tests fail if they would otherwise have tried to connect to
490 the real session bus (fd.o #101698, Simon McVittie)
492 • Make build-time tests cope with finding Python 3, but not Python 2
493 (fd.o #101716, Simon McVittie)
495 Internal changes relevant to dbus developers:
497 • DBusVariant is a new mechanism to copy single values from a message into
498 a buffer without copying the entire message (fd.o #101568, Simon McVittie)
500 • DBUS_SYSTEM_LOG_FATAL has been replaced by DBUS_SYSTEM_LOG_ERROR.
501 Logging an ERROR message does not make the process exit; the caller
502 is responsible for calling abort() or exit(), whichever is more appropriate.
503 (fd.o #101568, Simon McVittie)
505 • Better test coverage (fd.o #101568, Simon McVittie)
507 D-Bus 1.11.14 (2017-06-29)
510 The “irrational fear of bees” release.
514 • Expat >= 2.1.0 is always required
515 • libselinux >= 2.0.86 is required if SELinux support is enabled
516 • GLib >= 2.40 is required if full test coverage is enabled
518 Build-time configuration changes:
520 • We now use pkg-config to find libexpat in Autotools builds. This requires
521 Expat 2.1.0 (March 2012) or later. In particular, this should remove the
522 need to configure with LDFLAGS=-L/usr/local/lib on OpenBSD, which can
523 itself cause compilation failures.
525 As with all pkg-config-based configure checks, you can use
526 PKG_CONFIG_PATH=/whatever/lib/pkgconfig to find expat.pc in a
527 non-standard prefix, or EXPAT_CFLAGS="-I/whatever/include" and
528 EXPAT_LIBS="-L/whatever/lib -lexpat" to avoid needing a .pc file
531 (fd.o #69801, Simon McVittie)
533 • Similarly, we now use pkg-config to find libselinux. Version 2.0.86
534 is required due to the removal of explicit refcounting for SIDs.
535 (fd.o #100912, Laurent Bigonville)
539 • Previously, /etc/machine-id could be copied to /var/lib/dbus/machine-id
540 as a side-effect of a sufficiently privileged process merely reading the
541 machine ID. It is no longer copied as a side-effect of reading.
542 Running dbus-uuidgen --ensure, which should be done after installing dbus,
543 continues to copy /etc/machine-id to /var/lib/dbus/machine-id if the
544 former exists and the latter does not.
545 (fd.o #101257, Simon McVittie)
547 • The undocumented Verbose interface, and the GetAllMatchRules method on
548 the undocumented Stats interface, must now be used via the object path
549 /org/freedesktop/DBus. Previously, they existed on all object paths.
550 (fd.o #101257, Simon McVittie)
552 • AddMatch() with a match rule containing eavesdrop='true' will now fail
553 unless called by either the same user as the dbus-daemon, or Unix uid 0
554 (root), matching the restrictions applied to the newer BecomeMonitor()
555 method. On the session bus this has no practical effect. On the system
556 bus this will prevent certain configurations that already did not
557 work well in practice. (fd.o #101567, Simon McVittie)
561 • D-Bus Specification version 0.31
562 · Don't require implementation-specific search paths to be lowest
564 · Correct regex syntax for optionally-escaped bytes in addresses so it
565 includes hyphen-minus, forward slash and underscore as intended
566 · Describe all message bus methods in the same section
567 · Clarify the correct object path for method calls to the message bus
568 (/org/freedesktop/DBus, DBUS_PATH_DBUS in the reference implementation)
569 · Document that the message bus implements Introspectable, Peer and
571 · Add new Features and Interfaces properties for message bus
573 · Add unix:dir=..., which resembles unix:tmpdir=... but never uses
575 · Don't require eavesdrop='true' to be accepted from connections not
576 sufficiently privileged to use it successfully
577 · Formally deprecate eavesdropping in favour of BecomeMonitor
578 (fd.o #99825, #100686, #100795, #101256, #101257, #101567;
579 Simon McVittie, Tom Gundersen)
581 • Implement the Properties and Peer interfaces in dbus-daemon
582 (fd.o #101257, Simon McVittie)
584 • New function dbus_try_get_local_machine_id() is like
585 dbus_get_local_machine_id(), but returning a DBusError. Other code
586 that needs the machine ID will now report a recoverable error (instead
587 of logging to stderr and aborting) if no machine ID is available.
588 Generating a machine ID is still considered to be a required part of
589 installing dbus correctly. (fd.o #13194, Simon McVittie)
591 • Implement GetConnectionSELinuxSecurityContext("org.freedesktop.DBus")
592 (fd.o #101315, Laurent Bigonville)
594 • Avoid deprecated API calls when using SELinux
595 (fd.o #100912, Laurent Bigonville)
597 • Switch a test from the deprecated g_test_trap_fork() to
598 g_test_trap_subprocess(), for Windows support and better robustness
599 on Unix (fd.o #101362, Simon McVittie)
601 • On systemd systems, if ${localstatedir}/dbus/machine-id doesn't exist,
602 instruct systemd-tmpfiles to make it a symbolic link to /etc/machine-id.
603 This prevents the two files from going out of sync on stateless or live
604 images without needing to run dbus-uuidgen, and supports older D-Bus
605 implementations that do not necessarily read /etc/machine-id themselves.
606 (fd.o #101570, Simon McVittie)
608 • Implement unix:dir=..., which resembles unix:tmpdir=... but never uses
609 abstract sockets. This is preferable when used with Linux containers.
610 (fd.o #101567, Simon McVittie)
614 • Fix a reference leak when blocking on a pending call on a connection
615 that has been disconnected (fd.o #101481, Shin-ichi MORITA)
617 • Don't put timestamps in the Doxygen-generated documentation,
618 or hard-code the build directory into builds with embedded tests,
619 for reproducible builds (fd.o #100692, Simon McVittie)
621 • Fix some integration test issues (fd.o #100686, Simon McVittie)
623 • Fix memory leaks in the tests (fd.o #101257, Simon McVittie)
625 • If we somehow get an autolaunch address with multiple semicolon-separated
626 components, and they don't work, don't invalidly "pile up" errors
627 (fd.o #101257, Simon McVittie)
631 • Update git URIs in HACKING document to sync up with cgit.freedesktop.org
632 (fd.o #100715, Simon McVittie)
634 D-Bus 1.11.12 (2017-04-07)
637 The “it's something humans do” release.
641 • The session dbus-daemon now supports transient .service files
642 in $XDG_RUNTIME_DIR/dbus-1/services. Unlike the other standard
643 service directories, this directory is not monitored with inotify
644 or similar, and the service files must be named exactly
645 ${bus_name}.service. (fd.o #99825, Simon McVittie)
647 • dbus can be configured with --enable-relocation when building with
648 Autotools, or with -DDBUS_RELOCATABLE=ON when building with cmake,
649 to make the pkg-config metadata relocatable. This is useful for
650 non-standard prefixes, and in particular for Windows installations.
651 However, it is not recommended for system-wide installations into
652 /usr, because it interferes with pkg-config's ability to filter out
653 compiler default linker directories.
655 With Autotools, the default is --enable-relocation when building
656 for Windows or --disable-relocation otherwise. With CMake, the default
657 is -DDBUS_RELOCATABLE=ON.
659 (fd.o #99721; Ralf Habacker, Simon McVittie)
661 • Users of CMake ≥ 2.6 can now link to libdbus without providing their
662 own FindDBus.cmake macros, whether dbus was compiled with Autotools
663 or with CMake. See the end of README.cmake for more information.
664 (fd.o #99721; Ralf Habacker, Simon McVittie)
668 • Always read service file directories in the intended order
669 (fd.o #99825, Simon McVittie)
671 • When tests are skipped, don't try to kill nonexistent process 0
672 (fd.o #99825, Simon McVittie)
674 • Avoid valgrind false positives (fd.o #88808, Philip Withnall)
676 • Fix a harmless read overflow and some memory leaks in a unit test
677 (fd.o #100568, Philip Withnall)
679 • Fix some typos in test code
680 (fd.o #99999, Coverity #141876, #141877; Philip Withnall)
682 • Clarify the roles of /etc/dbus-1/s*.d and /usr/share/dbus-1/s*.d
683 in documentation (fd.o #99901, Philip Withnall)
685 • Fix and enable compiler warnings related to -Wswitch
686 (fd.o #98191; Thomas Zimmermann, Simon McVittie)
688 • Fix writing off the end of a fd_set when testing with valgrind
689 (fd.o #99839, Philip Withnall)
691 D-Bus 1.11.10 (2017-02-16)
694 The “purple hair gives you telekinesis?” release.
698 • AppArmor support requires at least libapparmor 2.8.95, reduced
699 from 2.10 in previous versions. One test requires 2.10 and is
700 skipped if building with an older version.
704 • Do the Travis-CI build in Docker containers for Ubuntu LTS, Debian
705 stable and Debian testing in addition to the older Ubuntu that is
706 the default (fd.o #98889, Simon McVittie)
708 • Avoid some deprecated CMake functions (fd.o #99586, Ralf Habacker)
710 • Silence many -Wswitch-enum and -Wswitch-default warnings
711 (fd.o #98191; Thomas Zimmermann, Simon McVittie)
713 • Install a sysusers.d snippet so `dbus-daemon --system` can be used
714 with an unpopulated /etc (fd.o #99162, Lennart Poettering)
716 • Install pkg-config metadata on Unix even if building with CMake
717 (fd.o #99752, Ralf Habacker)
719 • Exclude auth mechanisms from REJECTED message if they are supported
720 in the code but but configured to be disallowed (fd.o #99621,
725 • Prevent symlink attacks in the nonce-tcp transport on Unix that could
726 allow an attacker to overwrite a file named "nonce", in a directory
727 that the user running dbus-daemon can write, with a random value
728 known only to the user running dbus-daemon. This is unlikely to be
729 exploitable in practice, particularly since the nonce-tcp transport
730 is really only useful on Windows.
732 On Unix systems we strongly recommend using only the unix: and systemd:
733 transports, together with EXTERNAL authentication. These are the only
734 transports and authentication mechanisms enabled by default.
736 (fd.o #99828, Simon McVittie)
738 • Avoid symlink attacks in the "embedded tests", which are not enabled
739 by default and should never be enabled in production builds of dbus.
740 (fd.o #99828, Simon McVittie)
742 • Fix the implementation of re-enabling a timeout so that its
743 countdown is restarted as intended, instead of continually
744 decreasing. (fd.o #95619; Michal Koutný, Simon McVittie)
746 • When receiving a message with file descriptors, do not start reading
747 the beginning of the next message, so that only one such message
748 is processed at a time. In conjunction with the fix for #95619
749 this means that processes sending many file descriptors, such as
750 systemd-logind on a system that receives very rapid ssh connections,
751 are not treated as abusive and kicked off the bus. Revert the previous
752 workaround that special-cased uid 0.
753 (fd.o #95263, LP#1591411; Simon McVittie)
755 • Do not require TMPDIR, TEMP or TMP to be set when cross-compiling
756 for Windows with CMake (fd.o #99586, Ralf Habacker)
758 • Do not set Unix-specific variables when targeting Windows
759 (fd.o #99586, Ralf Habacker)
761 • Install Unix executables to ${CMAKE_INSTALL_PREFIX}/bin as intended,
762 not ${CMAKE_INSTALL_PREFIX}/lib (fd.o #99752, Ralf Habacker)
764 • Use relative install locations in CMake on Unix to respect DESTDIR,
765 and use GNU-style install layout (fd.o #99721, #99752; Ralf Habacker)
767 • Install dbus-arch-deps.h correctly when using CMake
768 (fd.o #99586, #99721; Ralf Habacker)
770 • Improve argument validation for `dbus-test-tool spam`
771 (ffd.o #99693, Coverity #54759; Philip Withnall)
773 • Don't shift by a negative integer if a hash table becomes monstrously
774 large (fd.o #99641, Coverity #54682; Philip Withnall)
776 • Don't leak LSM label if dbus-daemon runs out of memory when dealing with
777 a new connection (fd.o #99612, Coverity #141058; Philip Withnall)
779 • Remove an unnecessary NULL check
780 (fd.o #99642, Coverity #141062; Philip Withnall)
782 • Improve error handling in unit tests and dbus-send
783 (fd.o #99643, #99694, #99712, #99722, #99723, #99724, #99758,
784 #99759, #99793, Coverity #54688, #54692, #54693, #54697, #54701,
785 #54710, #54711, #54714, #54715, #54718, #54721, #54724, #54726,
786 #54730, #54740, #54822, #54823, #54824, #54825; Philip Withnall)
788 • Do not print verbose messages' timestamps to stderr if the actual message
789 has been redirected to the Windows debug port (fd.o #99749, Ralf Habacker)
791 D-Bus 1.11.8 (2016-11-28)
794 The “panics in the face of breakfast foods” release.
796 Build-time configuration:
798 • The new --enable-debug configure option provides an easy way to
799 enable debug symbols, disable optimization and/or enable profiling.
801 • The --enable-compile-warnings configure option can be used to control
804 • The --disable-compiler-optimisations configure option is no longer
805 supported. Use --enable-debug=yes or CFLAGS=-O0 instead.
809 • D-Bus Specification version 0.30
810 · Define the jargon term "activation" more clearly
811 · Define the jargon term "auto-starting", which is one form of activation
812 · Document the optional SystemdService key in service files
813 · Use versioned interface and bus names in most examples
814 · Clarify intended behaviour of Properties.GetAll
815 (fd.o #36190, fd.o #98671; Philip Withnall, Simon McVittie)
817 • Fix and enable a lot of compiler warnings to improve future code
818 quality. This might incidentally also fix some environment variable
820 · In particular, printf-style functions in the libdbus API are now annotated
821 with __attribute__((__format__(__printf__, *, *))) when compiling with
822 gcc or clang. This might make printf bugs in other software visible
824 (fd.o #97357, fd.o #98192, fd.o #98195, fd.o #98658;
825 Thomas Zimmermann, Simon McVittie)
827 • When running with AppArmor mediation (for example using Ubuntu's patched
828 Linux kernel), clients can no longer auto-start services unless they would
829 have been able to send the auto-starting message to the service after it
830 starts. StartServiceByName() is unaffected, and continues to be allowed by
831 default in AppArmor's <abstractions/dbus-strict> and
832 <abstractions/dbus-session-strict>. (fd.o #98666, Simon McVittie)
836 • Work around an undesired effect of the fix for CVE-2014-3637
837 (fd.o #80559), in which processes that frequently send fds, such as
838 logind during a flood of new PAM sessions, can get disconnected for
839 continuously having at least one fd "in flight" for too long;
840 dbus-daemon interprets that as a potential denial of service attack.
841 The workaround is to disable that check for uid 0 process such as
842 logind, with a message in the system log. The bug remains open while
843 we look for a more general solution.
844 (fd.o #95263, LP#1591411; Simon McVittie)
846 • Don't run the test test-dbus-launch-x11.sh if X11 autolaunching
847 was disabled at compile time. That test is not expected to work
848 in that configuration. (fd.o #98665, Simon McVittie)
850 D-Bus 1.11.6 (2016-10-10)
853 The “darkly whimsical” release.
857 • Do not treat ActivationFailure message received from root-owned systemd
858 name as a format string. In principle this is a security vulnerability,
859 but we do not believe it is exploitable in practice, because only
860 privileged processes can own the org.freedesktop.systemd1 bus name, and
861 systemd does not appear to send activation failures that contain "%".
863 Please note that this probably *was* exploitable in dbus versions
864 older than 1.6.30, 1.8.16 and 1.9.10 due to a missing check which at
865 the time was only thought to be a denial of service vulnerability
866 (CVE-2015-0245). If you are still running one of those versions,
867 patch or upgrade immediately.
869 (fd.o #98157, Simon McVittie)
873 • D-Bus Specification version 0.29
874 · Recommend not using '/' for object paths (fd.o #37095, Philip Withnall)
875 · Allow <annotation> in <arg> elements (fd.o #86162, Philip Withnall)
877 • Log to syslog when we exceed various anti-DoS limits, and add test
878 coverage for them (fd.o #86442, Simon McVittie)
880 • Improve syslog handling so that _dbus_warn() and similar warnings
881 go to syslog, add dbus-daemon --syslog|--nosyslog|--syslog-only options,
882 and log to syslog (instead of /dev/null) when dbus-daemon is started by
883 dbus-launch. (fd.o #97009, Simon McVittie)
885 • Install introspect.dtd and busconfig.dtd to ${datadir}/xml/dbus-1
886 (fd.o #89011, Philip Withnall)
888 • When logging messages about service activation, mention which peer
889 requested the activation (fd.o #68212, Philip Withnall)
891 • On Linux, mention the LSM label (if available) whenever we print
892 debug information about a peer (fd.o #68212, Philip Withnall)
896 • Harden dbus-daemon against malicious or incorrect ActivationFailure
897 messages by rejecting them if they do not come from a privileged
898 process, or if systemd activation is not enabled
899 (fd.o #98157, Simon McVittie)
901 • Avoid undefined behaviour when setting reply serial number without going
902 via union DBusBasicValue (fd.o #98035, Marc Mutz)
904 • Fix CMake build for Unix platforms that do not have -lrt, such as Android,
905 or that do need -lsocket, such as QNX (fd.o #94096, Ralf Habacker)
907 • autogen.sh: fail cleanly if autoconf fails (Simon McVittie)
909 D-Bus 1.11.4 (2016-08-15)
912 The “copper pickaxe” release.
916 • Building from git (but not from tarballs) now requires
917 macros from the GNU Autoconf Archive, for example the autoconf-archive
918 package in Debian or Fedora derivatives.
920 Build-time configuration:
922 • The option to enable coverage instrumentation has changed from
923 --enable-compiler-coverage to --enable-code-coverage.
927 • D-Bus Specification version 0.28
928 · Clarify some details of serialization (fd.o #93382, Philip Withnall)
930 • Increase listen() backlog of AF_UNIX sockets to the maximum possible,
931 minimizing failed connections under heavy load
932 (fd.o #95264, Lennart Poettering)
934 • Add a new dbus-launch --exit-with-x11 option (fd.o #39197, Simon McVittie)
936 • Use the same regression tests for subprocess starting on Unix and Windows
937 (fd.o #95191, Ralf Habacker)
939 • Print timestamps and thread IDs in verbose messages
940 (fd.o #95191, Ralf Habacker)
942 • On Unix, unify the various places that reopen stdin, stdout and/or stderr
943 pointing to /dev/null (fd.o #97008, Simon McVittie)
945 • Use AX_CODE_COVERAGE instead of our own COMPILER_COVERAGE
946 (fd.o #88922, Thomas Zimmermann)
950 • On Windows, fix a memory leak in replacing the installation prefix
951 (fd.o #95191, Ralf Habacker)
953 • On Linux, when dbus-daemon is run with reduced susceptibility to the
954 OOM killer (typically via systemd), do not let child processes inherit
955 that setting (fd.o #32851; Kimmo Hämäläinen, WaLyong Cho)
957 • On Unix, make dbus-launch and dbus-daemon --fork work as intended
958 even if a parent process incorrectly starts them with stdin, stdout
959 and/or stderr closed (fd.o #97008, Simon McVittie)
961 • Output valid shell syntax in ~/.dbus/session-bus/ if the bus address
962 contains a semicolon (fd.o #94746, Thiago Macieira)
964 • Fix memory leaks and thread safety in subprocess starting on Windows
965 (fd.o #95191, Ralf Habacker)
967 • Stop test-dbus-daemon incorrectly failing on platforms that cannot
968 discover the process ID of clients (fd.o #96653, Руслан Ижбулатов)
970 • In tests that exercise correct handling of crashing D-Bus services,
971 suppress Windows crash handler (fd.o #95155; Yiyang Fei, Ralf Habacker)
973 • Explicitly check for stdint.h (Ioan-Adrian Ratiu)
975 • In tests, add an invalid DBusAuthState to avoid undefined behaviour
976 in some test cases (fd.o #93909, Nick Lewycky)
978 • Add assertions to reassure a static analysis tool
979 (fd.o #93210, Deepika Aggarwal)
981 • Be explicit about enum comparison when loading XML
982 (fd.o #93205, Deepika Aggarwal)
984 • update-activation-environment: produce better diagnostics on error
985 (fd.o #96653, Simon McVittie)
987 • Avoid various compiler warnings with gcc 6
988 (fd.o #97282; Thomas Zimmermann, Simon McVittie)
990 • On Unix when configured to use the system log, report as "dbus-daemon",
991 not as "dbus" (fd.o #97009, Simon McVittie)
993 • During unit tests, reduce the amount we write to the system log
994 (fd.o #97009, Simon McVittie)
996 D-Bus 1.11.2 (2016-03-07)
999 The “pneumatic drill vs. Iron Maiden” release.
1003 • Enable "large file support" on systems where it exists: dbus-daemon
1004 is not expected to open large files, but it might need to stat files
1005 that happen to have large inode numbers (fd.o #93545, Hongxu Jia)
1007 • Eliminate padding inside DBusMessageIter on 64-bit platforms,
1008 which might result in a pedantic C compiler not copying the entire contents
1009 of a DBusMessageIter; statically assert that this is not an ABI change
1010 in practice (fd.o #94136, Simon McVittie)
1012 • Document dbus-test-tool echo --sleep-ms=N instead of incorrect --sleep=N
1013 (fd.o #94244, Dmitri Iouchtchenko)
1015 • Correctly report test failures in C tests from run-test.sh
1016 (fd.o #93379; amit tewari, Simon McVittie)
1018 • When tests are enabled, run all the marshal-validate tests, not just
1019 the even-numbered ones (fd.o #93908, Nick Lewycky)
1021 • Correct the expected error from one marshal-validate test, which was
1022 previously not run due to the above bug (fd.o #93908, Simon McVittie)
1024 • Fix compilation under CMake when embedded tests are disabled
1025 (fd.o #94094, eric.hyer)
1029 • Fix all -Wpointer-sign (signed/unsigned mismatch) warnings, and enable the
1030 warning (fd.o #93069; Ralf Habacker, Simon McVittie)
1032 • When building with CMake, use the same gcc/clang warnings as under Autotools,
1033 or MSVC warnings that are broadly similar (fd.o #93069, Ralf Habacker)
1035 • test/name-test: make C tests produce TAP output and run them directly, not
1036 via run-test.sh (fd.o #92899, Simon McVittie)
1038 • Under CMake when cross-compiling for Windows on Unix, run the tests
1039 under Wine even if binfmt_misc support is not available
1040 (fd.o #88966, Ralf Habacker)
1042 • The DBUS_USE_TEST_BINARY environment variable is no longer used by builds with
1043 embedded tests; DBUS_TEST_DBUS_LAUNCH replaces it (fd.o #92899, Simon McVittie)
1045 • Factor out some functions that will be needed in future for a Windows
1046 implementation of dbus-run-session (fd.o #92899, Ralf Habacker)
1048 D-Bus 1.11.0 (2015-12-02)
1051 The “peppermint deer” release.
1055 • On non-Windows platforms, dbus now requires an <inttypes.h> that defines
1056 C99 constants such as PRId64 and PRIu64.
1060 • D-Bus Specification version 0.27
1061 · Specify that services should not reply if NO_REPLY_EXPECTED was used
1062 (fd.o #75749, Lars Uebernickel)
1064 • Add a script to do continuous-integration builds, and metadata to run it
1065 on travis-ci.org. To use this, clone the dbus git repository on GitHub
1066 and set it up with travis-ci.org; the only special setting needed is
1067 "only build branches with a .travis.yml". (fd.o #93194, Simon McVittie)
1069 • If dbus-daemon is run with --systemd-activation, do not require
1070 org.freedesktop.systemd1.service to exist (fd.o #93194, Simon McVittie)
1074 • Re-order dbus-daemon startup so that on SELinux systems, the thread
1075 that reads AVC notifications retains the ability to write to the
1076 audit log (fd.o #92832, Laurent Bigonville)
1078 • Print 64-bit integers on non-GNU Unix platforms (fd.o #92043, Natanael Copa)
1080 • When using the Monitoring interface, match messages' destinations
1081 (fd.o #92074, Simon McVittie)
1083 • On Linux with systemd, stop installing a reference to the obsolete
1084 dbus.target, and enable dbus.socket statically (fd.o #78412, #92402;
1087 • On Windows, when including configuration files with <include> or
1088 <includedir>, apply the same relocation as for the Exec paths
1089 in .service files (fd.o #92028, Simon McVittie)
1091 • Add support for backtraces on Windows (fd.o #92721, Ralf Habacker)
1093 • Fix many -Wpointer-sign warnings (fd.o #93069, Ralf Habacker)
1095 D-Bus 1.10.6 (2015-12-01)
1098 The “marzipan beetles” release.
1102 • On Unix when running tests as root, don't assert that root and
1103 the dbus-daemon user can still call UpdateActivationEnvironment;
1104 assert that those privileged users can call BecomeMonitor instead
1105 (fd.o #93036, Simon McVittie)
1107 • On Windows, fix a memory leak in the autolaunch transport (fd.o #92899,
1110 • On Windows Autotools builds, don't run tests that rely on
1111 dbus-run-session and other Unix-specifics (fd.o #92899, Simon McVittie)
1113 D-Bus 1.10.4 (2015-11-17)
1116 The “Frostburn Canyon” release.
1120 • GetConnectionCredentials, GetConnectionUnixUser and
1121 GetConnectionUnixProcessID with argument "org.freedesktop.DBus"
1122 will now return details of the dbus-daemon itself. This is required
1123 to be able to call SetEnvironment on systemd.
1124 (fd.o #92857, Jan Alexander Steffens)
1128 • Make UpdateActivationEnvironment always fail with AccessDenied on the
1129 system bus. Previously, it was possible to configure it so root could
1130 call it, but the environment variables were not actually used,
1131 because the launch helper would discard them.
1132 (fd.o #92857, Jan Alexander Steffens)
1134 • On Unix with --systemd-activation on a user bus, make
1135 UpdateActivationEnvironment pass on its arguments to systemd's
1136 SetEnvironment method, solving inconsistency between the environments
1137 used for traditional activation and systemd user-service activation.
1138 (fd.o #92857, Jan Alexander Steffens)
1140 • On Windows, don't crash if <syslog/> or --syslog is used
1141 (fd.o #92538, Ralf Habacker)
1143 • On Windows, fix a memory leak when setting a DBusError from a Windows
1144 error (fd.o #92721, Ralf Habacker)
1146 • On Windows, don't go into infinite recursion if we abort the process
1147 with backtraces enabled (fd.o #92721, Ralf Habacker)
1149 • Fix various failing tests, variously on Windows and cross-platform:
1150 · don't test system.conf features (users, groups) that only make sense
1151 on the system bus, which is not supported on Windows
1152 · don't call _dbus_warn() when we skip a test, since it is fatal
1153 · fix computation of expected <standard_session_servicedirs/>
1154 · when running TAP tests, translate newlines to Unix format, fixing
1155 cross-compiled tests under Wine on Linux
1156 · don't stress-test refcounting under Wine, where it's really slow
1157 · stop assuming that a message looped-back to the test will be received
1159 · skip some system bus tests on Windows since they make no sense there
1160 (fd.o #92538, fd.o #92721; Ralf Habacker, Simon McVittie)
1162 D-Bus 1.10.2 (2015-10-26)
1165 The “worst pies in London” release.
1169 • Correct error handling for activation: if there are multiple attempts
1170 to activate the same service and it fails immediately, the first attempt
1171 would get the correct reply, but the rest would time out. We now send
1172 the same error reply to each attempt. (fd.o #92200, Simon McVittie)
1174 • If BecomeMonitor is called with a syntactically invalid match rule,
1175 don't crash with an assertion failure, fixing a regression in 1.9.10.
1176 This was not exploitable as a denial of service, because the check
1177 for a privileged user is done first. (fd.o #92298, Simon McVittie)
1179 • On Linux with --enable-user-session, add the bus address to the
1180 environment of systemd services for better backwards compatibility
1181 (fd.o #92612, Jan Alexander Steffens)
1183 • On Windows, fix the logic for replacing the installation prefix
1184 in service files' Exec lines (fd.o #83539; Milan Crha, Simon McVittie)
1186 • On Windows, if installed in the conventional layout with ${prefix}/etc
1187 and ${prefix}/share, use relative paths between bus configuration files
1188 to allow the tree to be relocated (fd.o #92028, Simon McVittie)
1190 • Make more of the regression tests pass in Windows builds (fd.o #92538,
1193 D-Bus 1.10.0 (2015-08-25)
1198 This is a new stable branch, recommended for use in OS distributions.
1202 • distribute test/tap-test.sh.in, even if the tarball was built without
1203 tests enabled (fd.o #91684, Simon McVittie)
1204 • work around a fd leak in libcap-ng < 0.7.7 (fd.o #91684, Simon McVittie)
1206 Summary of major changes since 1.8.0:
1208 • The basic setup for the well-known system and session buses is
1209 now done in read-only files in ${datadir} (normally /usr/share).
1210 See the NEWS entry for 1.9.18 for details.
1212 • AppArmor integration has been merged, with features similar to the
1213 pre-existing SELinux integration. It is mostly compatible with the
1214 patches previously shipped by Ubuntu, with one significant change:
1215 Ubuntu's GetConnectionAppArmorSecurityContext method has been superseded
1216 by GetConnectionCredentials and was not included.
1218 • The --enable-user-session configure option can be enabled
1219 by OS integrators intending to use systemd to provide a session bus
1220 per user (in effect, treating all concurrent graphical and non-graphical
1221 login sessions as one large session).
1223 • The new listenable address mode "unix:runtime=yes" listens on
1224 $XDG_RUNTIME_DIR/bus, the same AF_UNIX socket used by the systemd
1225 user session. libdbus and "dbus-launch --autolaunch" will connect to
1226 this address by default. GLib ≥ 2.45.3 and sd-bus ≥ 209 have a
1229 • All executables are now dynamically linked to libdbus-1.
1230 Previously, some executables, most notably dbus-daemon, were statically
1231 linked to a specially-compiled variant of libdbus. This results in
1232 various private functions in the _dbus namespace being exposed by the
1233 shared library. These are not API, and must not be used outside
1234 the dbus source tree.
1236 • On platforms with ELF symbol versioning, all public symbols
1237 are versioned LIBDBUS_1_3.
1241 • org.freedesktop.DBus.GetConnectionCredentials returns
1242 LinuxSecurityLabel where supported
1243 • org.freedesktop.DBus.Monitoring interface (privileged)
1244 · BecomeMonitor method supersedes match rules with eavesdrop=true,
1245 which are now deprecated
1246 • org.freedesktop.DBus.Stats interface (semi-privileged)
1247 · now enabled by default
1248 · new GetAllMatchRules method
1249 • org.freedesktop.DBus.Verbose interface (not normally compiled)
1250 · toggles the effect of DBUS_VERBOSE
1255 • dbus-update-activation-environment
1257 New optional dependencies:
1259 • The systemd: pseudo-transport requires libsystemd or libsd-daemon
1260 • Complete documentation requires Ducktype and yelp-tools
1261 • Full test coverage requires GLib 2.36 and PyGI
1262 • AppArmor integration requires libapparmor and optionally libaudit
1264 Dependencies removed:
1268 D-Bus 1.9.20 (2015-08-06)
1271 The “Remember Tomorrow” release.
1273 This is a release-candidate for D-Bus 1.10.0. OS distribution vendors
1278 • Don't second-guess what the ABI of poll() is, allowing it to be used
1279 on Integrity RTOS and other unusual platforms (fd.o #90314;
1280 Rolland Dudemaine, Simon McVittie)
1282 • Don't duplicate audit subsystem integration if AppArmor and SELinux are
1283 both enabled (fd.o #89225, Simon McVittie)
1285 • Log audit events for AppArmor/SELinux policy violations whenever
1286 we have CAP_AUDIT_WRITE, even if not the system bus
1287 (fd.o #83856, Laurent Bigonville)
1289 D-Bus 1.9.18 (2015-07-21)
1292 The “Pirate Elite” release.
1294 Configuration changes:
1296 • The basic setup for the well-known system and session buses is now done
1297 in read-only files in ${datadir}, moving a step closer to systems
1298 that can operate with an empty /etc directory. In increasing order
1301 · ${datadir}/dbus-1/s*.conf now perform the basic setup such as setting
1302 the default message policies.
1303 · ${sysconfdir}/dbus-1/s*.conf are now optional. By default
1304 dbus still installs a trivial version of each, for documentation
1305 purposes; putting configuration directives in these files is deprecated.
1306 · ${datadir}/dbus-1/s*.d/ are now available for third-party software
1307 to install "drop-in" configuration snippets (any packages
1308 using those directories should explicitly depend on at least this
1310 · ${sysconfdir}/dbus-1/s*.d/ are also still available for sysadmins
1311 or third-party software to install "drop-in" configuration snippets
1312 · ${sysconfdir}/dbus-1/s*-local.conf are still available for sysadmins'
1315 ${datadir} is normally /usr/share, ${sysconfdir} is normally /etc,
1316 and "s*" refers to either system or session as appropriate.
1318 (fd.o #89280, Dimitri John Ledkov)
1322 • Fix a memory leak when GetConnectionCredentials() succeeds
1323 (fd.o #91008, Jacek Bukarewicz)
1325 • Ensure that dbus-monitor does not reply to messages intended for others,
1326 resulting in its own disconnection (fd.o #90952, Simon McVittie)
1328 D-Bus 1.9.16 (2015-05-14)
1331 The “titanium barns” release.
1335 • Automake 1.13 is now required when compiling from git or modifying
1340 • On Unix platforms, change the default configuration for the session bus
1341 to only allow EXTERNAL authentication (secure kernel-mediated
1342 credentials-passing), as was already done for the system bus.
1344 This avoids falling back to DBUS_COOKIE_SHA1, which relies on strongly
1345 unpredictable pseudo-random numbers.
1347 If you are using D-Bus over the (unencrypted!) tcp: or nonce-tcp: transport,
1348 in conjunction with DBUS_COOKIE_SHA1 and a shared home directory using
1349 NFS or similar, you will need to reconfigure the session bus to accept
1350 DBUS_COOKIE_SHA1 by commenting out the <auth> element. This configuration
1353 (fd.o #90414, Simon McVittie)
1355 • When asked for random numbers for DBUS_COOKIE_SHA1, the nonce-tcp:
1356 transport, UUIDs or any other reason, fail if we cannot obtain entropy
1357 (from /dev/urandom or CryptGenRandom()) or an out-of-memory condition
1358 occurs, instead of silently falling back to low-entropy pseudorandom
1359 numbers from rand(). (fd.o #90414; Simon McVittie, Ralf Habacker)
1363 • Add dbus_message_iter_get_element_count()
1364 (fd.o #30350; Christian Dywan, Simon McVittie)
1366 • Introduce new internal DBusSocket and DBusPollable types so we can
1367 stop treating the Windows SOCKET type as if it was int. DBusSocket
1368 is specifically a socket, cross-platform. DBusPollable is whatever
1369 _dbus_poll() can act on, i.e. a fd on Unix or a SOCKET on Windows.
1370 (fd.o #89444; Ralf Habacker, Simon McVittie)
1372 • All regression tests now output TAP <https://testanything.org/>
1373 (fd.o #89846, Simon McVittie)
1375 • Internal APIs consistently use signed values for timestamps
1376 (fd.o #18494, Peter McCurdy)
1378 • Improve diagnostics when UpdateActivationEnvironment calls are rejected
1379 (fd.o #88812, Simon McVittie)
1381 • Clean up a lot of compiler warnings
1382 (fd.o #17289, fd.o #89284; Ralf Habacker, Simon McVittie)
1386 • Add locking to DBusCounter's reference count and notify function
1387 (fd.o #89297, Adrian Szyndela)
1389 • Ensure that DBusTransport's reference count is protected by the
1390 corresponding DBusConnection's lock (fd.o #90312, Adrian Szyndela)
1392 • Correctly release DBusServer mutex before early-return if we run out
1393 of memory while copying authentication mechanisms (fd.o #90021,
1396 • Make dbus-test-tool and dbus-update-activation-environment portable
1397 to Windows (fd.o #90089, Ralf Habacker)
1399 • Correctly initialize all fields of DBusTypeReader (fd.o #90021;
1400 Ralf Habacker, Simon McVittie)
1402 • Fix some missing \n in verbose (debug log) messages (fd.o #90004,
1405 • Clean up some memory and fd leaks in test code and tools
1406 (fd.o #90021, Ralf Habacker)
1408 • Fix a NULL dereference if the dbus-daemon cannot read a configuration
1409 directory for a reason that is not ENOENT (fd.o #90021, Ralf Habacker)
1411 • CMake generates a versioned shared library even if the revision is 0,
1412 as it usually is on the development branch. (fd.o #89450, Ralf Habacker)
1414 D-Bus 1.9.14 (2015-03-02)
1417 The “don't stand in the poison cloud” release.
1421 • dbus-daemon and dbus-daemon-launch-helper now require libdbus. They
1422 were previously linked to a static version of libdbus.
1424 • The tests no longer require dbus-glib in order to exercise the libdbus
1425 shared library; they are always linked to libdbus now.
1427 Build-time configuration:
1429 • The new --enable-user-session option, off by default, can be enabled
1430 by OS integrators intending to use systemd to provide a session bus
1431 per user (in effect, treating all concurrent graphical and non-graphical
1432 login sessions as one large session)
1436 • All executables are now linked dynamically to libdbus.
1437 (fd.o #83115; Bertrand SIMONNET, Simon McVittie, Ralf Habacker)
1439 • On platforms that support them (GNU libc and possibly others),
1440 libdbus now has versioned symbols for its public API.
1441 All public symbols (visible in the header files) are currently
1442 versioned as LIBDBUS_1_3; private symbols starting with _dbus or
1443 dbus_internal have a version that changes with each release, and
1444 must not be used by applications. (also fd.o #83115)
1446 • New listenable address mode "unix:runtime=yes" which listens on
1447 a real filesystem (non-abstract) socket $XDG_RUNTIME_DIR/bus
1448 (fd.o #61303; Colin Walters, Alexander Larsson, Simon McVittie)
1450 • Add optional systemd units for a per-user bus listening on
1451 $XDG_RUNTIME_DIR/bus (fd.o #61301; Simon McVittie, Colin Walters)
1453 • On Unix platforms, both libdbus and "dbus-launch --autolaunch"
1454 default to connecting to $XDG_RUNTIME_DIR/bus if it is a socket
1457 • New dbus-update-activation-environment tool uploads environment
1458 variables to "dbus-daemon --session" and optionally "systemd --user",
1459 primarily as a way to keep the per-user bus compatible with
1460 distributions' existing X11 login scripts (also fd.o #61301)
1462 • <includedir/> elements in dbus-daemon configuration are now silently
1463 ignored if the directory does not exist. (fd.o #89280, Dimitri John Ledkov)
1465 • Add microsecond-resolution timestamps to the default output of
1466 dbus-monitor and dbus-send (fd.o #88896; Ralf Habacker, Simon McVittie)
1470 • Fix a race condition in the 'monitor' test introduced in 1.9.10
1471 (fd.o #89222, Simon McVittie)
1473 D-Bus 1.9.12 (2015-02-19)
1476 The “monster lasagna” release.
1480 • Ducktype and yelp-tools are now required to build complete documentation
1481 (they are optional for normal builds).
1485 • D-Bus Specification version 0.26
1486 · GetConnectionCredentials can return LinuxSecurityLabel or WindowsSID
1487 · document the BecomeMonitor method
1489 • On Linux, add LinuxSecurityLabel to GetConnectionCredentials
1490 (fd.o #89041; Tyler Hicks, Simon McVittie)
1492 • On Linux, add support for AppArmor mediation of message sending and
1493 receiving and name ownership (paralleling existing SELinux mediation
1494 support), and eavesdropping (a new check, currently AppArmor-specific)
1495 (fd.o #75113; John Johansen, Tyler Hicks, Simon McVittie)
1497 • In dbus-send and dbus-monitor, pretty-print \0-terminated bytestrings
1498 that have printable ASCII contents; we previously only did this for
1499 unterminated bytestrings (fd.o #89109, Simon McVittie)
1501 • Add a guide to designing good D-Bus APIs (fd.o #88994, Philip Withnall)
1503 • On Windows, add WindowsSID to GetConnectionCredentials
1504 (fd.o #54445, Ralf Habacker)
1506 • Improve clarity of dbus-monitor --profile output and add more columns
1507 (fd.o #89165, Ralf Habacker)
1509 • Add a man page for dbus-test-tool, and build it under CMake as well
1510 as Autotools (fd.o#89086, Simon McVittie)
1512 • If dbus-daemon was compiled with --enable-verbose, add a D-Bus API
1513 to control it at runtime, overriding the DBUS_VERBOSE environment variable
1514 (fd.o #88896, Ralf Habacker)
1518 • Reduce the number of file descriptors used in the fd-passing test,
1519 avoiding failure under the default Linux fd limit, and automatically
1520 skip it if the rlimit is too small (fd.o #88998, Simon McVittie)
1522 D-Bus 1.9.10 (2015-02-09)
1525 The “sad cyborgs” release.
1527 Security fixes merged from 1.8.16:
1529 • Do not allow non-uid-0 processes to send forged ActivationFailure
1530 messages. On Linux systems with systemd activation, this would
1531 allow a local denial of service: unprivileged processes could
1532 flood the bus with these forged messages, winning the race with
1533 the actual service activation and causing an error reply
1534 to be sent back when service auto-activation was requested.
1535 This does not prevent the real service from being started,
1536 so the attack only works while the real service is not running.
1537 (CVE-2015-0245, fd.o #88811; Simon McVittie)
1541 • The new Monitoring interface in the dbus-daemon lets dbus-monitor and
1542 similar tools receive messages without altering the security properties
1543 of the system bus, by calling the new BecomeMonitor method on a
1544 private connection. This bypasses the normal <allow> and <deny> rules
1545 entirely, so to preserve normal message-privacy assumptions, only root
1546 is allowed to do this on the system bus. Restricted environments,
1547 such as Linux with LSMs, should lock down access to the Monitoring
1548 interface. (fd.o #46787, Simon McVittie)
1550 • dbus-monitor uses BecomeMonitor to capture more traffic, if the
1551 dbus-daemon supports it and access permissions allow it.
1552 It still supports the previous approach ("eavesdropping" match rules)
1553 for compatibility with older bus daemons. (fd.o #46787, Simon)
1555 • dbus-monitor can now log the message stream as binary data for later
1556 analysis, with either no extra framing beyond the normal D-Bus headers,
1557 or libpcap-compatible framing treating each D-Bus message
1558 as a captured packet. (fd.o #46787, Simon)
1562 • Fix some CMake build regressions (fd.o #88964, Ralf Habacker)
1564 • On Unix, forcibly terminate regression tests after 60 seconds to
1565 prevent them from blocking continuous integration frameworks
1566 (fd.o #46787, Simon)
1568 D-Bus 1.9.8 (2015-02-03)
1571 The “all the types of precipitation” release.
1575 • full test coverage now requires GLib 2.36
1576 • full test coverage now requires PyGI (PyGObject 3,
1577 "import gi.repository.GObject") instead of the
1578 obsolete PyGObject 2 ("import gobject")
1582 • add GLib-style "installed tests" (fd.o #88810, Simon McVittie)
1584 • better regression test coverage, including systemd activation
1585 (fd.o #57952, #88810; Simon McVittie)
1589 • fatal errors correctly make the dbus-daemon exit even if <syslog/> is
1590 turned off (fd.o #88808, Simon McVittie)
1592 • TCP sockets on Windows no longer fail to listen approximately 1 time
1593 in 256, caused by a logic error that should have always made it fail but
1594 was mitigated by incorrect endianness for the port number
1595 (fd.o #87999, Ralf Habacker)
1597 • fix some Windows build failures (fd.o #88009, #88010; Ralf Habacker)
1599 • on Windows, allow up to 8K connections to the dbus-daemon instead of the
1600 previous 64, completing a previous fix which only worked under
1601 Autotools (fd.o #71297, Ralf Habacker)
1603 • on Windows, if the IP family is unspecified only use IPv4,
1604 to mitigate IPv6 not working correctly (fd.o #87999, Ralf Habacker)
1606 • fix some unlikely memory leaks on OOM (fd.o #88087, Simon McVittie)
1608 • lcov code coverage analysis works again (fd.o #88808, Simon McVittie)
1610 • fix an unused function error with --disable-embedded-tests (fd.o #87837,
1613 D-Bus 1.9.6 (2015-01-05)
1616 The “I do have a bread knife” release.
1620 • Do not allow calls to UpdateActivationEnvironment from uids other than
1621 the uid of the dbus-daemon. If a system service installs unsafe
1622 security policy rules that allow arbitrary method calls
1623 (such as CVE-2014-8148) then this prevents memory consumption and
1624 possible privilege escalation via UpdateActivationEnvironment.
1626 We believe that in practice, privilege escalation here is avoided
1627 by dbus-daemon-launch-helper sanitizing its environment; but
1628 it seems better to be safe.
1630 • Do not allow calls to UpdateActivationEnvironment or the Stats interface
1631 on object paths other than /org/freedesktop/DBus. Some system services
1632 install unsafe security policy rules that allow arbitrary method calls
1633 to any destination, method and interface with a specified object path;
1634 while less bad than allowing arbitrary method calls, these security
1635 policies are still harmful, since dbus-daemon normally offers the
1636 same API on all object paths and other system services might behave
1641 • Add missing initialization so GetExtendedTcpTable doesn't crash on
1642 Windows Vista SP0 (fd.o #77008, Илья А. Ткаченко)
1644 D-Bus 1.9.4 (2014-11-24)
1647 The “extra-sturdy caramel” release.
1651 • Partially revert the CVE-2014-3639 patch by increasing the default
1652 authentication timeout on the system bus from 5 seconds back to 30
1653 seconds, since this has been reported to cause boot regressions for
1654 some users, mostly with parallel boot (systemd) on slower hardware.
1656 On fast systems where local users are considered particularly hostile,
1657 administrators can return to the 5 second timeout (or any other value
1658 in milliseconds) by saving this as /etc/dbus-1/system-local.conf:
1661 <limit name="auth_timeout">5000</limit>
1664 (fd.o #86431, Simon McVittie)
1666 • Add a message in syslog/the Journal when the auth_timeout is exceeded
1667 (fd.o #86431, Simon McVittie)
1669 • Send back an AccessDenied error if the addressed recipient is not allowed
1670 to receive a message (and in builds with assertions enabled, don't
1671 assert under the same conditions). (fd.o #86194, Jacek Bukarewicz)
1673 D-Bus 1.9.2 (2014-11-10)
1676 The “structurally unsound flapjack” release.
1680 • Increase dbus-daemon's RLIMIT_NOFILE rlimit to 65536
1681 so that CVE-2014-3636 part A cannot exhaust the system bus'
1682 file descriptors, completing the incomplete fix in 1.8.8.
1683 (CVE-2014-7824, fd.o #85105; Simon McVittie, Alban Crequy)
1687 • D-Bus Specification version 0.25
1688 · new value 'const' for EmitsChangedSignal annotation
1689 (fd.o #72958, Lennart Poettering)
1690 · new ALLOW_INTERACTIVE_AUTHORIZATION flag, for PolicyKit and similar
1691 (fd.o #83449; Lennart Poettering, Simon McVittie)
1692 · annotate table of types with reserved/basic/container, and for
1693 basic types, fixed/string-like
1694 · clarify arbitrary limits by quoting them in mebibytes
1696 • New API: add accessors for the ALLOW_INTERACTIVE_AUTHORIZATION flag
1697 (fd.o #83449, Simon McVittie)
1699 • Add dbus-test-tool, a D-Bus swiss army knife with multiple subcommands,
1700 useful for debugging and performance testing:
1701 · dbus-test-tool spam: send repeated messages
1702 · dbus-test-tool echo: send an empty reply for all method calls
1703 · dbus-test-tool black-hole: do not reply to method calls
1704 (fd.o #34140; Alban Crequy, Simon McVittie, Will Thompson)
1706 • Add support for process ID in credentials-passing on NetBSD
1707 (fd.o #69702, Patrick Welche)
1709 • Add an example script to find potentially undesired match rules
1710 (fd.o #84598, Alban Crequy)
1712 • Document the central assumption that makes our use of credentials-passing
1713 secure (fd.o #83499, Simon McVittie)
1715 • Replace the dbus-glib section of the tutorial with a GDBus recommendation,
1716 and add some links to GDBus and QtDBus documentation (fd.o #25140,
1721 • Use a less confusing NoReply message when disconnected with a reply pending
1722 (fd.o #76112, Simon McVittie)
1724 • Make the .pc file relocatable by letting pkg-config do all variable
1725 expansion itself (fd.o #75858, Руслан Ижбулатов)
1727 • Fix a build failure on platforms with kqueue, which regressed in 1.9.0
1728 (fd.o #85563, Patrick Welche)
1730 • Consistently save errno after socket calls (fd.o #83625, Simon McVittie)
1732 • In dbus-spawn, when the grandchild process exits due to a failed exec(),
1733 do not lose the exec() errno (fd.o #24821, Simon McVittie)
1735 • Do not fail the tests if a parent process has leaked non-close-on-exec
1736 file descriptors to us (fd.o #73689, fd.o #83899; Simon McVittie)
1738 • Do not fail the tests on Unix platforms with incomplete
1739 credentials-passing support, but do fail if we can't pass credentials
1740 on a platform where it is known to work: Linux, FreeBSD, OpenBSD, NetBSD
1741 (fd.o #69702, Simon McVittie)
1743 • Detect accept4, dirfd, inotify_init1, pipe2, and Unix fd passing
1744 when building with cmake, and expand test coverage there
1745 (fd.o #73689; Ralf Habacker, Simon McVittie)
1747 D-Bus 1.9.0 (2014-10-01)
1750 The “tiered cheeses” release.
1754 • Support for the systemd: (LISTEN_FDS) pseudo-transport on Linux now
1755 requires either the libsystemd or libsd-daemon shared library, dropping the
1756 embedded convenience copy of sd-daemon (fd.o #71818, Simon)
1758 Build-time configuration changes:
1760 • The Stats interface is now enabled by default, and locked-down to
1761 root-only on the system bus. Configure with --disable-stats
1762 to disable it altogether on memory- or disk-constrained systems,
1763 or see ${docdir}/examples/ to open it up to non-root users on the
1764 system bus or restrict access on the session bus.
1765 (fd.o #80759; Simon McVittie, Alban Crequy)
1767 • The CMake build system now builds the same shared library name as Autotools
1768 on at least Linux and Windows:
1769 - on Linux (and perhaps other Unix platforms), it previously built
1770 libdbus-1.so, but now builds libdbus-1.so.3.* with development
1771 symlink libdbus-1.so and SONAME/symlink libdbus-1.so.3
1772 - on Windows, it previously built either libdbus-1.dll (release) or
1773 libdbus-1d.dll (debug), but now builds libdbus-1-3.dll, copied to
1774 libdbus-1.dll for compatibility with older applications.
1775 (fd.o #74117, Ralf Habacker)
1779 • D-Bus Specification version 0.24
1780 · document how to quote match rules (fd.o #24307, Simon McVittie)
1781 · explicitly say that most message types never expect a reply
1782 regardles of whether they have NO_REPLY_EXPECTED
1783 (fd.o #75749, Simon McVittie)
1785 • on Unix platforms, disable Nagle's algorithm on TCP connections to improve
1786 initial latency (fd.o #75544, Matt Hoosier)
1788 • use backtrace() if it is in -lexecinfo instead of libc, as on NetBSD
1789 (fd.o #69702, Patrick Welche)
1791 • in dbus-monitor, print more information about file descriptors
1792 (fd.o #80603, Alban Crequy)
1794 • do not install system bus configuration if built for Windows
1795 (fd.o #83583; Ralf Habacker, Simon McVittie)
1797 • Add GetAllMatchRules to the Stats interface (fd.o #24307, Alban Crequy)
1799 • Add a regression test for file descriptor passing (fd.o #83622,
1804 • fix an incorrect error message if a Unix socket path is too long
1805 (fd.o #73887, Antoine Jacoutot)
1807 • in an MSYS/Cygwin environment, pass Unix-style filenames to xmlto,
1808 fixing documentation generation (fd.o #75860, Руслан Ижбулатов)
1810 • in Unix with X11, avoid giving dbus-launch a misleading argv[0]
1811 in ps(1) (fd.o #69716, Chengwei Yang)
1813 • avoid calling poll() with timeout < -1, which is considered invalid
1814 on FreeBSD and NetBSD (fd.o #78480, Jaap Boender)
1816 • be portable to BSD-derived platforms where O_CLOEXEC is unavailable in libc
1817 (like Mac OS X 10.6), or available in libc but unsupported by the kernel
1818 (fd.o #77032; rmvsxop, OBATA Akio, Patrick Welche)
1820 • Fix include path for test/internal/*.c with cmake (Ralf Habacker)
1822 • Documentation improvements
1823 (fd.o #80795, #84313; Thomas Haller, Sebastian Rasmussen)
1825 • in dbus-monitor, do not leak file descriptors that we have monitored
1826 (fd.o #80603, Alban Crequy)
1828 • Set the close-on-exec flag for the inotify file descriptor, even
1829 if built with CMake or older libc (fd.o #73689, Simon McVittie)
1831 • Remove some LGPL code from the Windows dbus-daemon
1832 (fd.o #57272, Ralf Habacker)
1834 D-Bus 1.8.8 (2014-09-16)
1837 The "smashy smashy egg man" release.
1841 • Do not accept an extra fd in the padding of a cmsg message, which
1842 could lead to a 4-byte heap buffer overrun.
1843 (CVE-2014-3635, fd.o #83622; Simon McVittie)
1845 • Reduce default for maximum Unix file descriptors passed per message
1846 from 1024 to 16, preventing a uid with the default maximum number of
1847 connections from exhausting the system bus' file descriptors under
1848 Linux's default rlimit. Distributors or system administrators with a
1849 more restrictive fd limit may wish to reduce these limits further.
1851 Additionally, on Linux this prevents a second denial of service
1852 in which the dbus-daemon can be made to exceed the maximum number
1853 of fds per sendmsg() and disconnect the process that would have
1855 (CVE-2014-3636, fd.o #82820; Alban Crequy)
1857 • Disconnect connections that still have a fd pending unmarshalling after
1858 a new configurable limit, pending_fd_timeout (defaulting to 150 seconds),
1859 removing the possibility of creating an abusive connection that cannot be
1860 disconnected by setting up a circular reference to a connection's
1862 (CVE-2014-3637, fd.o #80559; Alban Crequy)
1864 • Reduce default for maximum pending replies per connection from 8192 to 128,
1865 mitigating an algorithmic complexity denial-of-service attack
1866 (CVE-2014-3638, fd.o #81053; Alban Crequy)
1868 • Reduce default for authentication timeout on the system bus from
1869 30 seconds to 5 seconds, avoiding denial of service by using up
1870 all unauthenticated connection slots; and when all unauthenticated
1871 connection slots are used up, make new connection attempts block
1872 instead of disconnecting them.
1873 (CVE-2014-3639, fd.o #80919; Alban Crequy)
1877 • Check for libsystemd from systemd >= 209, falling back to
1878 the older separate libraries if not found (Umut Tezduyar Lindskog,
1881 • On Linux, use prctl() to disable core dumps from a test executable
1882 that deliberately raises SIGSEGV to test dbus-daemon's handling
1883 of that condition (fd.o #83772, Simon McVittie)
1885 • Fix compilation with --enable-stats (fd.o #81043, Gentoo #507232;
1888 • Improve documentation for running tests on Windows (fd.o #41252,
1891 D-Bus 1.8.6 (2014-06-02)
1896 • On Linux ≥ 2.6.37-rc4, if sendmsg() fails with ETOOMANYREFS, silently drop
1897 the message. This prevents an attack in which a malicious client can
1898 make dbus-daemon disconnect a system service, which is a local
1900 (fd.o #80163, CVE-2014-3532; Alban Crequy)
1902 • Track remaining Unix file descriptors correctly when more than one
1903 message in quick succession contains fds. This prevents another attack
1904 in which a malicious client can make dbus-daemon disconnect a system
1906 (fd.o #79694, fd.o #80469, CVE-2014-3533; Alejandro Martínez Suárez,
1907 Simon McVittie, Alban Crequy)
1911 • When dbus-launch --exit-with-session starts a dbus-daemon but then cannot
1912 attach to a session, kill the dbus-daemon as intended
1913 (fd.o #74698, Роман Донченко)
1915 D-Bus 1.8.4 (2014-06-10)
1920 • Alban Crequy at Collabora Ltd. discovered and fixed a denial-of-service
1921 flaw in dbus-daemon, part of the reference implementation of D-Bus.
1922 Additionally, in highly unusual environments the same flaw could lead to
1923 a side channel between processes that should not be able to communicate.
1924 (CVE-2014-3477, fd.o #78979)
1926 D-Bus 1.8.2 (2014-04-30)
1929 The “nobody wants red” release.
1933 • in the CMake build system, add some hints for Linux users cross-compiling
1934 Windows D-Bus binaries to be able to run tests under Wine
1935 (fd.o #41252, Ralf Habacker)
1937 • add Documentation key to dbus.service (fd.o #77447, Cameron Norman)
1941 • in "dbus-uuidgen --ensure", try to copy systemd's /etc/machine-id
1942 to /var/lib/dbus/machine-id instead of generating an entirely new ID
1943 (fd.o #77941, Simon McVittie)
1945 • if dbus-launch receives an X error very quickly, do not kill
1946 unrelated processes (fd.o #74698, Роман Донченко)
1948 • on Windows, allow up to 8K connections to the dbus-daemon, instead of the
1949 previous 64 (fd.o #71297; Cristian Onet, Ralf Habacker)
1951 • cope with \r\n newlines in regression tests, since on Windows,
1952 dbus-daemon.exe uses text mode (fd.o #75863, Руслан Ижбулатов)
1954 D-Bus 1.8.0 (2014-01-20)
1957 The “Wolverine distrusts my printer” release.
1959 This starts a new stable branch. The 1.6.x branch is now considered to be
1960 outdated, and will only receive fixes for serious bugs such as security
1961 flaws. The 1.4.x and 1.2.x branches no longer have upstream support and
1962 are unlikely to get any more releases, but if distributors still need to
1963 support them, please share security patches via upstream.
1965 Summary of changes since 1.6.x:
1967 • libdbus always behaves as if dbus_threads_init_default() had been called
1968 (thread-safety by default)
1969 • new dbus-run-session tool, replacing certain misuses of dbus-launch
1970 • dbus-monitor can talk to outdated versions of dbus-daemon again
1971 • new org.freedesktop.DBus.GetConnectionCredentials method
1972 • GetConnectionUnixProcessID also works correctly on Windows, returning
1973 the Windows process ID
1974 • GetConnectionWindowsSID returns the correct SID on Windows
1975 • expat is required, libxml2 can no longer be used as a substitute
1976 • the userDB cache is required, and cannot be disabled
1977 • a 64-bit integer type (either int, long, long long or _int64) is required
1978 • better systemd-journald integration on Linux
1979 • fixed long-standing fd and array leaks when failing to parse a message
1980 • fixed referenced-but-never-freed parent nodes (effectively memory leaks)
1981 when using certain object-path allocation patterns, notably in Avahi
1982 • better defaults for Windows support
1983 • better CMake support
1984 • better portability to mingw32, FreeBSD, NetBSD, QNX and Hurd
1985 • the source language for the man pages is now Docbook XML
1987 Enhancements since 1.7.10:
1989 • Enhance the CMake build system to check for GLib and compile/run
1990 a subset of the regression tests (fd.o #41252, #73495; Ralf Habacker)
1994 • don't rely on va_copy(), use DBUS_VA_COPY() wrapper (fd.o #72840,
1997 • fix compilation of systemd journal support on older systemd versions where
1998 sd-journal.h doesn't include syslog.h (fd.o #73455, Ralf Habacker)
2000 • fix compilation on older MSVC versions by including stdlib.h
2001 (fd.o #73455, Ralf Habacker)
2003 • Allow <allow_anonymous/> to appear in an included configuration file
2004 (fd.o #73475, Matt Hoosier)
2006 Test behaviour changes since 1.7.10:
2008 • If the tests crash with an assertion failure, they no longer default to
2009 blocking for a debugger to be attached. Set DBUS_BLOCK_ON_ABORT in the
2010 environment if you want the old behaviour.
2012 • To improve debuggability, the dbus-daemon and dbus-daemon-eavesdrop tests
2013 can be run with an external dbus-daemon by setting
2014 DBUS_TEST_DAEMON_ADDRESS in the environment. Test-cases that require
2015 an unusually-configured dbus-daemon are skipped.
2017 D-Bus 1.7.10 (2014-01-06)
2020 The “weighted companion cube” release.
2022 This is a release candidate for D-Bus 1.8.
2024 D-Bus Specification 0.23:
2026 • don't require messages with no INTERFACE to be dispatched
2027 (fd.o #68597, Simon McVittie)
2029 • document "tcp:bind=..." and "nonce-tcp:bind=..." (fd.o #72301,
2032 • define "listenable" and "connectable" addresses, and discuss
2033 the difference (fd.o #61303, Simon McVittie)
2037 • support printing Unix file descriptors in dbus-send, dbus-monitor
2038 (fd.o #70592, Robert Ancell)
2040 • don't install systemd units if --disable-systemd is given
2041 (fd.o #71818, Chengwei Yang)
2045 • don't leak memory on out-of-memory while listing activatable or
2046 active services (fd.o #71526, Radoslaw Pajak)
2048 • fix undefined behaviour in a regression test (fd.o #69924, DreamNik)
2050 • escape Unix socket addresses correctly (fd.o #46013, Chengwei Yang)
2052 • on SELinux systems, don't assume that SECCLASS_DBUS, DBUS__ACQUIRE_SVC
2053 and DBUS__SEND_MSG are numerically equal to their values in the
2054 reference policy (fd.o #88719, osmond sun)
2056 • define PROCESS_QUERY_LIMITED_INFORMATION if missing from MinGW < 4 headers
2057 (fd.o #71366, Matt Fischer)
2059 • define WIN32_LEAN_AND_MEAN to avoid conflicts between winsock.h and
2060 winsock2.h (fd.o #71405, Matt Fischer)
2062 • do not return failure from _dbus_read_nonce() with no error set,
2063 preventing a potential crash (fd.o #72298, Chengwei Yang)
2065 • on BSD systems, avoid some O(1)-per-process memory and fd leaks in kqueue,
2066 preventing test failures (fd.o #69332, fd.o #72213; Chengwei Yang)
2068 • fix warning spam on Hurd by not trying to set SO_REUSEADDR on Unix sockets,
2069 which doesn't do anything anyway on at least Linux and FreeBSD
2070 (fd.o #69492, Simon McVittie)
2072 • fix use of TCP sockets on FreeBSD and Hurd by tolerating EINVAL from
2073 sendmsg() with SCM_CREDS (retrying with plain send()), and looking
2074 for credentials more correctly (fd.o #69492, Simon McVittie)
2076 • ensure that tests run with a temporary XDG_RUNTIME_DIR to avoid
2077 getting mixed up in XDG/systemd "user sessions" (fd.o #61301,
2080 • refresh cached policy rules for existing connections when bus
2081 configuration changes (fd.o #39463, Chengwei Yang)
2083 D-Bus 1.7.8 (2013-11-01)
2086 The “extreme hills” release.
2090 • If systemd support is enabled, libsystemd-journal is now required.
2094 • When activating a non-systemd service under systemd, annotate its
2095 stdout/stderr with its bus name in the Journal. Known limitation:
2096 because the socket is opened before forking, the process will still be
2097 logged as if it had dbus-daemon's process ID and user ID.
2098 (fd.o #68559, Chengwei Yang)
2100 • Document more configuration elements in dbus-daemon(1)
2101 (fd.o #69125, Chengwei Yang)
2105 • Don't leak string arrays or fds if dbus_message_iter_get_args_valist()
2106 unpacks them and then encounters an error (fd.o #21259, Chengwei Yang)
2108 • If compiled with libaudit, retain CAP_AUDIT_WRITE so we can write
2109 disallowed method calls to the audit log, fixing a regression in 1.7.6
2110 (fd.o #49062, Colin Walters)
2112 • path_namespace='/' in match rules incorrectly matched nothing; it
2113 now matches everything. (fd.o #70799, Simon McVittie)
2115 D-Bus 1.7.6 (2013-10-09)
2118 The “CSI Shrewsbury” release.
2120 Build-time configuration changes:
2122 • Directory change notification via dnotify on Linux is no longer
2123 supported; it hadn't compiled successfully since 2010 in any case.
2124 If you don't have inotify (Linux) or kqueue (*BSD), you will need
2125 to send SIGHUP to the dbus-daemon when its configuration changes.
2126 (fd.o #33001, Chengwei Yang)
2128 • Compiling with --disable-userdb-cache is no longer supported;
2129 it didn't work since at least 2008, and would lead to an extremely
2130 slow dbus-daemon even it worked. (fd.o #15589, #17133, #66947;
2133 • The DBUS_DISABLE_ASSERTS CMake option didn't actually disable most
2134 assertions. It has been renamed to DBUS_DISABLE_ASSERT to be consistent
2135 with the Autotools build system. (fd.o #66142, Chengwei Yang)
2137 • --with-valgrind=auto enables Valgrind instrumentation if and only if
2138 valgrind headers are available. The default is still --with-valgrind=no.
2139 (fd.o #56925, Simon McVittie)
2143 • Platforms with no 64-bit integer type are no longer supported.
2144 (fd.o #65429, Simon McVittie)
2146 • GNU make is now (documented to be) required. (fd.o #48277, Simon McVittie)
2148 • Full test coverage no longer requires dbus-glib, although the tests do not
2149 exercise the shared library (only a static copy) if dbus-glib is missing.
2150 (fd.o #68852, Simon McVittie)
2154 • D-Bus Specification 0.22
2155 · Document GetAdtAuditSessionData() and
2156 GetConnectionSELinuxSecurityContext() (fd.o #54445, Simon)
2157 · Fix example .service file (fd.o #66481, Chengwei Yang)
2158 · Don't claim D-Bus is "low-latency" (lower than what?), just
2159 give factual statements about it supporting async use
2160 (fd.o #65141, Justin Lee)
2161 · Document the contents of .service files, and the fact that
2162 system services' filenames are constrained
2163 (fd.o #66608; Simon McVittie, Chengwei Yang)
2165 • Be thread-safe by default on all platforms, even if
2166 dbus_threads_init_default() has not been called. For compatibility with
2167 older libdbus, library users should continue to call
2168 dbus_threads_init_default(): it is harmless to do so.
2169 (fd.o #54972, Simon McVittie)
2171 • Add GetConnectionCredentials() method (fd.o #54445, Simon)
2173 • New API: dbus_setenv(), a simple wrapper around setenv().
2174 Note that this is not thread-safe. (fd.o #39196, Simon)
2176 • Add dbus-send --peer=ADDRESS (connect to a given peer-to-peer connection,
2177 like --address=ADDRESS in previous versions) and dbus-send --bus=ADDRESS
2178 (connect to a given bus, like dbus-monitor --address=ADDRESS).
2179 dbus-send --address still exists for backwards compatibility,
2180 but is no longer documented. (fd.o #48816, Andrey Mazo)
2183 · "dbus-daemon --nofork" is allowed on Windows again. (fd.o #68852,
2188 • Avoid an infinite busy-loop if a signal interrupts waitpid()
2189 (fd.o #68945, Simon McVittie)
2191 • Clean up memory for parent nodes when objects are unexported
2192 (fd.o #60176, Thomas Fitzsimmons)
2194 • Make dbus_connection_set_route_peer_messages(x, FALSE) behave as
2195 documented. Previously, it assumed its second parameter was TRUE.
2196 (fd.o #69165, Chengwei Yang)
2198 • Escape addresses containing non-ASCII characters correctly
2199 (fd.o #53499, Chengwei Yang)
2201 • Document <servicedir> search order correctly (fd.o #66994, Chengwei Yang)
2203 • Don't crash on "dbus-send --session / x.y.z" which regressed in 1.7.4.
2204 (fd.o #65923, Chengwei Yang)
2206 • If malloc() returns NULL in _dbus_string_init() or similar, don't free
2207 an invalid pointer if the string is later freed (fd.o #65959, Chengwei Yang)
2209 • If malloc() returns NULL in dbus_set_error(), don't va_end() a va_list
2210 that was never va_start()ed (fd.o #66300, Chengwei Yang)
2212 • fix build failure with --enable-stats (fd.o #66004, Chengwei Yang)
2214 • fix a regression test on platforms with strict alignment (fd.o #67279,
2217 • Avoid calling function parameters "interface" since certain Windows headers
2218 have a namespace-polluting macro of that name (fd.o #66493, Ivan Romanov)
2220 • Assorted Doxygen fixes (fd.o #65755, Chengwei Yang)
2222 • Various thread-safety improvements to static variables (fd.o #68610,
2225 • Make "make -j check" work (fd.o #68852, Simon McVittie)
2227 • Fix a NULL pointer dereference on an unlikely error path
2228 (fd.o #69327, Sviatoslav Chagaev)
2230 • Improve valgrind memory pool tracking (fd.o #69326,
2233 • Don't over-allocate memory in dbus-monitor (fd.o #69329,
2236 • dbus-monitor can monitor dbus-daemon < 1.5.6 again
2237 (fd.o #66107, Chengwei Yang)
2240 · If accept4() fails with EINVAL, as it can on older Linux kernels
2241 with newer glibc, try accept() instead of going into a busy-loop.
2242 (fd.o #69026, Chengwei Yang)
2243 · If socket() or socketpair() fails with EINVAL or EPROTOTYPE,
2244 for instance on Hurd or older Linux with a new glibc, try without
2245 SOCK_CLOEXEC. (fd.o #69073; Pino Toscano, Chengwei Yang)
2246 · Fix a file descriptor leak on an error code path.
2247 (fd.o #69182, Sviatoslav Chagaev)
2248 · dbus-run-session: clear some unwanted environment variables
2249 (fd.o #39196, Simon)
2250 · dbus-run-session: compile on FreeBSD (fd.o #66197, Chengwei Yang)
2251 · Don't fail the autolaunch test if there is no DISPLAY (fd.o #40352, Simon)
2252 · Use dbus-launch from the builddir for testing, not the installed copy
2253 (fd.o #37849, Chengwei Yang)
2254 · Fix compilation if writev() is unavailable (fd.o #69409,
2256 · Remove broken support for LOCAL_CREDS credentials passing, and
2257 document where each credential-passing scheme is used (fd.o #60340,
2259 · Make autogen.sh work on *BSD by not assuming GNU coreutils functionality
2260 (fd.o #35881, #69787; Chengwei Yang)
2261 · dbus-monitor: be portable to NetBSD (fd.o #69842, Chengwei Yang)
2262 · dbus-launch: stop using non-portable asprintf (fd.o #37849, Simon)
2263 · Improve error reporting from the setuid activation helper (fd.o #66728,
2267 · Remove unavailable command-line options from 'dbus-daemon --help'
2268 (fd.o #42441, Ralf Habacker)
2269 · Add support for looking up local TCPv4 clients' credentials on
2270 Windows XP via the undocumented AllocateAndGetTcpExTableFromStack
2271 function (fd.o #66060, Ralf Habacker)
2272 · Fix insufficient dependency-tracking (fd.o #68505, Simon McVittie)
2273 · Don't include wspiapi.h, fixing a compiler warning (fd.o #68852,
2277 · add DBUS_ENABLE_ASSERT, DBUS_ENABLE_CHECKS for less confusing
2278 conditionals (fd.o #66142, Chengwei Yang)
2279 · improve verbose-mode output (fd.o #63047, Colin Walters)
2280 · consolidate Autotools and CMake build (fd.o #64875, Ralf Habacker)
2281 · fix various unused variables, unusual build configurations
2282 etc. (fd.o #65712, #65990, #66005, #66257, #69165, #69410, #70218;
2283 Chengwei Yang, Vasiliy Balyasnyy)
2285 D-Bus 1.7.4 (2013-06-13)
2288 The “but is your thread-safety thread-safe?” release.
2292 • CVE-2013-2168: Fix misuse of va_list that could be used as a denial
2293 of service for system services. Vulnerability reported by Alexandru Cornea.
2298 • The Windows version of libdbus now contains a C++ source file, used
2299 to provide global initialization when the library is loaded.
2300 gcc (mingw*) users should ensure that g++ is also installed.
2302 • The libxml2-based configuration reader (which hasn't worked for 2.5 years,
2303 and was never the recommended option) has been removed. Expat is now a
2308 • It should now be safe to call dbus_threads_init_default() from any thread,
2309 at any time. Authors of loadable modules and plugins that use libdbus
2310 should consider doing so during initialization.
2311 (fd.o #54972, Simon McVittie)
2313 • Improve dbus-send documentation and command-line parsing (fd.o #65424,
2317 · dbus-run-session: experimental new tool to start a temporary D-Bus
2318 session, e.g. for regression tests or a text console, replacing
2319 certain uses of dbus-launch which weren't really correct
2320 (fd.o #39196, Simon)
2324 • In dbus-daemon, don't crash if a .service file starts with key=value
2325 (fd.o #60853, Chengwei Yang)
2328 · Fix a crash similar to CVE-2013-2168 the first time we try to use syslog
2329 on a platform not defining LOG_PERROR, such as Solaris or QNX.
2330 This regressed in 1.7.0. (Simon)
2331 · Fix an assertion failure if we try to activate systemd services before
2332 systemd connects to the bus (fd.o #50199, Chengwei Yang)
2333 · Avoid compiler warnings for ignoring the return from write()
2337 · Under cmake, install runtime libraries (DLLs) into bin/ instead of lib/
2338 so that Windows finds them (fd.o #59733, Ralf Habacker)
2340 D-Bus 1.7.2 (2013-04-25)
2343 The “only partially opaque” release.
2345 Configuration changes:
2347 • On non-QNX Unix platforms, the default limit on fds per message in the
2348 session bus configuration has reduced from 4096 to 1024. The default
2349 limit used on the system bus was already 1024. On QNX, both limits are
2350 reduced further, to 128.
2354 • D-Bus Specification 0.21
2355 · Following Unicode Corrigendum #9, the noncharacters U+nFFFE, U+nFFFF,
2356 U+FDD0..U+FDEF are allowed in UTF-8 strings again. (fd.o #63072,
2361 • Diagnose incorrect use of dbus_connection_get_data() with negative slot
2362 (i.e. before allocating the slot) rather than returning junk
2363 (fd.o #63127, Dan Williams)
2365 • Fix a cmake build regression since 1.7.0 (fd.o #63682; Ralf Habacker,
2369 · On Linux, link successfully with glibc 2.17 (fd.o #63166, Simon McVittie)
2370 · Under systemd, log to syslog only, not stderr, avoiding duplication
2371 (fd.o #61399, #39987; Colin Walters, Dagobert Michelsen)
2372 · Under systemd, remove unnecessary dependency on syslog.socket
2373 (fd.o #63531, Cristian Rodríguez)
2374 · Include alloca.h for alloca() if available, fixing compilation on
2375 Solaris 10 (fd.o #63071, Dagobert Michelsen)
2376 · Allow use of systemd-logind without the rest of systemd
2377 (fd.o #62585, Martin Pitt)
2378 · When built with CMake, link to librt and use the right path for
2379 meinproc's XSLT stylesheets (fd.o #61637, Ralf Habacker)
2380 · Reduce the default limit on number of fds per message to 128 under
2381 QNX, working around an arbitrary OS limit (fd.o #61176, Matt Fischer)
2384 · Do not claim that all bus clients have the dbus-daemon's credentials;
2385 pick up local TCPv4 clients' credentials (process ID and security
2386 identifier, i.e. user) using GetExtendedTcpTable() (fd.o #61787,
2389 D-Bus 1.7.0 (2013-02-22)
2392 The "Disingenuous Assertions" release.
2394 This is a new development release, starting the 1.7.x branch. D-Bus 1.6
2395 remains the recommended version for long-term-supported distributions
2396 or the upcoming GNOME 3.8 release.
2398 Build-time configuration changes:
2400 • The --with-dbus-session-bus-default-address configure option is no longer
2401 supported. Use the new --with-dbus-session-bus-connect-address and
2402 --with-dbus-session-bus-listen-address options instead. On Windows, you
2403 usually want them to have the same argument; on Unix, the defaults are
2406 • Similarly, the DBUS_SESSION_BUS_DEFAULT_ADDRESS CMake variable is no longer
2407 supported; use the new DBUS_SESSION_BUS_LISTEN_ADDRESS and
2408 DBUS_SESSION_BUS_CONNECT_ADDRESS variables instead.
2410 • cmake/cross-compile.sh has been removed. Instead, please use a
2411 cross-toolchain file (-DCMAKE_TOOLCHAIN_FILE) as documented at
2412 <http://www.vtk.org/Wiki/CMake_Cross_Compiling>; or use Autotools
2413 as documented in "info automake Cross-Compilation", and set
2414 PKG_CONFIG_PATH appropriately.
2418 • Man pages now require xmlto (or either xmlto or meinproc, if using CMake).
2419 • man2html is no longer used.
2423 • D-Bus Specification 0.20
2424 · actually say that /org/freedesktop/DBus is the object that
2425 implements o.fd.DBus (fd.o #51865, Colin Walters)
2426 · various reorganisation for better clarity (fd.o #38252, Simon McVittie)
2427 · stop claiming that all basic types work just like INT32 (strings don't!)
2429 • The "source code" for the man pages is now Docbook XML, eliminating
2430 the outdated duplicate copies used when building with CMake.
2431 (fd.o #59805; Ralf Habacker, Simon McVittie)
2435 • In the activation helper, when compiled for tests, do not reset the system
2436 bus address, fixing the regression tests. (fd.o #52202, Simon)
2438 • Fix building with Valgrind 3.8, at the cost of causing harmless warnings
2439 with Valgrind 3.6 on some compilers (fd.o #55932, Arun Raghavan)
2441 • Merge <servicehelper> from system-local.conf if necessary (fd.o #51560,
2444 • Under CMake, prefer xmlto over meinproc (fd.o #59733, Ralf Habacker)
2446 • Stop duplicating CMake's own logic to find libexpat
2447 (fd.o #59733, Ralf Habacker)
2449 • Don't assume CMake host and build system are the same (fd.o #59733,
2452 • Avoid deprecation warnings for GLib 2.35 (fd.o #59971, Simon McVittie)
2455 · Check for functions in libpthread correctly, fixing compilation on
2456 (at least) OpenBSD (fd.o #47239, Simon)
2457 · Don't leak temporary fds pointing to /dev/null (fd.o #56927,
2459 · Update sd-daemon.[ch] from systemd (fd.o #60681)
2460 · Add partial support for QNX (fd.o #60339, fd.o #61176; Matt Fischer)
2463 · The default session bus listening and connecting address is now
2464 "autolaunch:", which makes D-Bus on Windows interoperate with itself
2465 and GDBus "out of the box". Use the configure options and cmake variables
2466 described above if you require a different autolaunch scope.
2467 (fd.o #38201, Simon McVittie)
2468 · Avoid a CMake warning under Cygwin (fd.o #59401, Ralf Habacker)
2470 • Create session.d, system.d directories under CMake (fd.o #41319,
2473 D-Bus 1.6.8 (2012-09-28)
2476 The "Fix one thing, break another" release.
2478 • Follow up to CVE-2012-3524: The additional hardening
2479 work to use __secure_getenv() as a followup to bug #52202
2480 broke certain configurations of gnome-keyring. Given
2481 the difficulty of making this work without extensive
2482 changes to gnome-keyring, use of __secure_getenv() is
2485 D-Bus 1.6.6 (2012-09-28)
2488 The "Clear the environment in your setuid binaries, please" release.
2490 • CVE-2012-3524: Don't access environment variables (fd.o #52202)
2491 Thanks to work and input from Colin Walters, Simon McVittie,
2492 Geoffrey Thomas, and others.
2494 · Fix compilation on Solaris (fd.o #53286, Jonathan Perkin)
2495 · Work around interdependent headers on OpenBSD by including sys/types.h
2496 before each use of sys/socket.h (fd.o #54418, Brad Smith)
2498 D-Bus 1.6.4 (2012-07-18)
2501 • Detect that users are "at the console" correctly when configured with
2502 a non-default path such as --enable-console-auth-dir=/run/console
2503 (fd.o #51521, Dave Reisner)
2505 • Remove an incorrect assertion from DBusTransport (fd.o #51657,
2508 • Make --enable-developer default to "no" (regression in 1.6.2;
2509 fd.o #51657, Simon McVittie)
2512 · Launch dbus-daemon correctly if its path contains a space
2513 (fd.o #49450, Wolfgang Baron)
2515 D-Bus 1.6.2 (2012-06-27)
2518 The "Ice Cabbage" release.
2520 • Change how we create /var/lib/dbus so it works under Automake >= 1.11.4
2521 (fd.o #51406, Simon McVittie)
2523 • Don't return from dbus_pending_call_set_notify with a lock held on OOM
2524 (fd.o #51032, Simon McVittie)
2526 • Disconnect "developer mode" (assertions, verbose mode etc.) from
2527 Automake maintainer mode. D-Bus developers should now configure with
2528 --enable-developer. Automake maintainer mode is now on by default;
2529 distributions can disable it with --disable-maintainer-mode.
2530 (fd.o #34671, Simon McVittie)
2532 • Automatically define DBUS_STATIC_BUILD in static-only Autotools builds,
2533 fixing linking when targeting Windows (fd.o #33973; william, Simon McVittie)
2536 · Check for libpthread under CMake on Unix (fd.o #47237, Simon McVittie)
2538 D-Bus 1.6.0 (2012-06-05)
2541 The “soul of this machine has improved” release.
2543 This version starts a new stable branch of D-Bus: only bug fixes will
2544 be accepted into 1.6.x. Other changes will now go to the 1.7.x branch.
2546 Summary of changes since 1.4.x:
2549 · PTHREAD_MUTEX_RECURSIVE on Unix
2550 · compiler support for 64-bit integers (int64_t or equivalent)
2552 • D-Bus Specification v0.19
2554 • New dbus-daemon features
2555 · <allow own_prefix="com.example.Service"/> rules allow the service to
2556 own names like com.example.Service.Instance3
2557 · optional systemd integration when checking at_console policies
2558 · --nopidfile option, mainly for use by systemd
2559 · path_namespace and arg0namespace may appear in match rules
2560 · eavesdropping is disabled unless the match rule contains eavesdrop=true
2563 · functions to validate various string types (dbus_validate_path() etc.)
2564 · dbus_type_is_valid()
2565 · DBusBasicValue, a union of every basic type
2568 · removed an unsafe reimplementation of recursive mutexes
2569 · dbus-daemon no longer busy-loops if it has far too many file descriptors
2570 · dbus-daemon.exe --print-address works on Windows
2571 · all the other bug fixes from 1.4.20
2573 • Other major implementation changes
2574 · on Linux, dbus-daemon uses epoll if supported, for better scalability
2575 · dbus_threads_init() ignores its argument and behaves like
2576 dbus_threads_init_default() instead
2577 · removed the per-connection link cache, improving dbus-daemon performance
2579 • Developer features
2580 · optional Valgrind instrumentation (--with-valgrind)
2581 · optional Stats interface on the dbus-daemon (--enable-stats)
2582 · optionally abort whenever malloc() fails (--enable-embedded-tests
2583 and export DBUS_MALLOC_CANNOT_FAIL=1)
2585 Changes since 1.5.12:
2587 • Be more careful about monotonic time vs. real time, fixing DBUS_COOKIE_SHA1
2588 spec-compliance (fd.o #48580, David Zeuthen)
2590 • Don't use install(1) within the source/build trees, fixing the build as
2591 non-root when using OpenBSD install(1) (fd.o #48217, Antoine Jacoutot)
2593 • Add missing commas in some tcp and nonce-tcp addresses, and remove
2594 an unused duplicate copy of the nonce-tcp transport in Windows builds
2595 (fd.o #45896, Simon McVittie)
2597 D-Bus 1.5.12 (2012-03-27)
2600 The “Big Book of Science” release.
2602 • Add public API to validate various string types:
2603 dbus_validate_path(), dbus_validate_interface(), dbus_validate_member(),
2604 dbus_validate_error_name(), dbus_validate_bus_name(), dbus_validate_utf8()
2605 (fd.o #39549, Simon McVittie)
2607 • Turn DBusBasicValue into public API so bindings don't need to invent their
2608 own "union of everything" type (fd.o #11191, Simon McVittie)
2610 • Enumerate data files included in the build rather than using find(1)
2611 (fd.o #33840, Simon McVittie)
2613 • Add support for policy rules like <allow own_prefix="com.example.Service"/>
2614 in dbus-daemon (fd.o #46273, Alban Crequy)
2617 · make dbus-daemon.exe --print-address (and --print-pid) work again
2618 on Win32, but not on WinCE (fd.o #46049, Simon McVittie)
2619 · fix duplicate case value when compiling against mingw-w64
2620 (fd.o #47321, Andoni Morales Alastruey)
2622 D-Bus 1.5.10 (2012-02-21)
2625 The "fire in Delerium" release.
2627 On Unix platforms, PTHREAD_MUTEX_RECURSIVE (as specified in POSIX 2008 Base
2628 and SUSv2) is now required.
2630 • D-Bus Specification 0.19:
2631 · Formally define unique connection names and well-known bus names,
2632 and document best practices for interface, bus, member and error names,
2633 and object paths (fd.o #37095, Simon McVittie)
2634 · Document the search path for session and system services on Unix, and
2635 where they should be installed by build systems (fd.o #21620, fd.o #35306;
2637 · Document the systemd transport (fd.o #35232, Lennart Poettering)
2639 • Make dbus_threads_init() use the same built-in threading implementation
2640 as dbus_threads_init_default(); the user-specified primitives that it
2641 takes as a parameter are now ignored (fd.o #43744, Simon McVittie)
2643 • Allow all configured auth mechanisms, not just one (fd.o #45106,
2646 • Improve cmake build system (Ralf Habacker):
2647 · simplify XML parser dependencies (fd.o #41027)
2648 · generate build timestamp (fd.o #41029)
2649 · only create batch files on Windows
2650 · fix option and cache syntax
2651 · add help-options target
2652 · share dbus-arch-deps.h.in with autotools rather than having our
2653 own version (fd.o #41033)
2655 • Build tests successfully with older GLib, as found in e.g. Debian 6
2656 (fd.o #41219, Simon McVittie)
2658 • Avoid use of deprecated GThread API (fd.o #44413, Martin Pitt)
2660 • Build documentation correctly if man2html doesn't support filenames on
2661 its command-line (fd.o #43875, Jack Nagel)
2663 • Improve test coverage. To get even more coverage, run the tests with
2664 DBUS_TEST_SLOW=1 (fd.o #38285, #42811; Simon McVittie)
2666 • Reduce the size of the shared library by moving functionality only used
2667 by dbus-daemon, tests etc. into their internal library and deleting
2668 unused code (fd.o #34976, #39759; Simon McVittie)
2670 • Add dbus-daemon --nopidfile option, overriding the configuration, for
2671 setups where the default configuration must include <pidfile/> to avoid
2672 breaking traditional init, but the pid file is in fact unnecessary; use
2673 it under systemd to improve startup time a bit (fd.o #45520,
2676 • Optionally (if configured --with-valgrind) add instrumentation to debug
2677 libdbus and associated tools more meaningfully under Valgrind
2678 (fd.o #37286, Simon McVittie)
2680 • Improve the dbus-send(1) man page (fd.o #14005, Simon McVittie)
2682 • Make dbus-protocol.h compatible with C++11 (fd.o #46147, Marc Mutz)
2684 • If tests are enabled and DBUS_MALLOC_CANNOT_FAIL is set in the environment,
2685 abort on failure to malloc() (like GLib does), to turn runaway memory leaks
2686 into a debuggable core-dump if a resource limit is applied (fd.o #41048,
2689 • Don't crash if realloc() returns NULL in a debug build (fd.o #41048,
2693 · Replace our broken reimplementation of recursive mutexes, which has
2694 been broken since 2006, with an ordinary pthreads recursive mutex
2695 (fd.o #43744; Sigmund Augdal, Simon McVittie)
2696 · Use epoll(7) for a more efficient main loop in Linux; equivalent patches
2697 welcomed for other OSs' equivalents like kqueue, /dev/poll, or Solaris
2698 event ports (fd.o #33337; Simon McVittie, Ralf Habacker)
2699 · When running under systemd, use it instead of ConsoleKit to check
2700 whether to apply at_console policies (fd.o #39609, Lennart Poettering)
2701 · Avoid a highly unlikely fd leak (fd.o #29881, Simon McVittie)
2702 · Don't close invalid fd -1 if getaddrinfo fails (fd.o #37258, eXeC001er)
2703 · Don't touch ~/.dbus and ~/.dbus-keyrings when running 'make installcheck'
2704 (fd.o #41218, Simon McVittie)
2705 · Stop pretending we respect XDG_DATA_DIRS for system services: the launch
2706 helper doesn't obey environment variables to avoid privilege escalation
2707 attacks, so make the system bus follow the same rules
2708 (fd.o #21620, Simon McVittie)
2711 · Find the dbus-daemon executable next to the shared library (fd.o #41558;
2712 Jesper Dam, Ralf Habacker)
2713 · Remove the faulty implementation of _dbus_condvar_wake_all (fd.o #44609,
2716 D-Bus 1.5.8 (2011-09-21)
2719 The "cross-metering" release.
2721 In addition to dead code removal and refactoring, this release contains all
2722 of the bugfixes from 1.4.16.
2724 • Clean up dead code, and make more warnings fatal in development builds
2725 (fd.o #39231, fd.o #41012; Simon McVittie)
2727 • If full test coverage is requested via --enable-tests, strictly require
2728 Python, pygobject and dbus-python, which are required by some tests; if not,
2729 and Python is missing, skip those tests rather than failing
2730 (fd.o #37847, Simon McVittie)
2732 • When using cmake, provide the same version-info API in the installed headers
2733 as for autotools (DBUS_VERSION, etc.) (fd.o #40905, Ralf Habacker)
2735 • Add a regression test for fd.o #38005 (fd.o #39836, Simon McVittie)
2737 • Make "NOCONFIGURE=1 ./autogen.sh" not run configure (Colin Walters)
2739 • Add _DBUS_STATIC_ASSERT and use it to check invariants (fd.o #39636,
2742 • Fix duplicates in authors list (Ralf Habacker)
2744 • Fix broken links from dbus-tutorial.html if $(htmldir) != $(docdir)
2745 (fd.o #39879, Chris Mayo)
2747 • Fix a small memory leak, and a failure to report errors, when updating
2748 a service file entry for activation (fd.o #39230, Simon McVittie)
2751 · Clean up (non-abstract) Unix sockets on bus daemon exit (fd.o #38656;
2752 Brian Cameron, Simon McVittie)
2753 · On systems that use libcap-ng but not systemd, drop supplemental groups
2754 when switching to the daemon user (Red Hat #726953, Steve Grubb)
2755 · Make the cmake build work again on GNU platforms (fd.o #29228,
2757 · Fix compilation on non-C99 systems that have inttypes.h but not stdint.h,
2758 like Solaris (fd.o #40313, Dagobert Michelsen)
2759 · Define CMSG_ALIGN, CMSG_LEN, CMSG_SPACE on Solaris < 10
2760 (fd.o #40235, Simon McVittie)
2761 · Cope with Unixes that don't have LOG_PERROR, like Solaris 10
2762 (fd.o #39987, Simon McVittie)
2763 · Cope with platforms whose vsnprintf violates both POSIX and C99, like
2764 Tru64, IRIX and HP-UX (fd.o #11668, Simon McVittie)
2767 · Fix compilation on MSVC, which doesn't understand "inline" with its
2768 C99 meaning (fd.o #40000; Ralf Habacker, Simon McVittie)
2769 · Fix misuse of GPid in test/dbus-daemon.c (fd.o #40003, Simon McVittie)
2770 · Fix cross-compilation to Windows with Automake (fd.o #40003, Simon McVittie)
2772 D-Bus 1.5.6 (2011-07-29)
2775 The "weird, gravy-like aftertaste" release.
2777 In addition to new features and refactoring, this release contains all of the
2778 bugfixes from 1.4.14.
2780 Potentially incompatible (Bustle and similar debugging tools will need
2781 changes to work as intended):
2783 • Do not allow match rules to "eavesdrop" (receive messages intended for a
2784 different recipient) by mistake: eavesdroppers must now opt-in to this
2785 behaviour by putting "eavesdrop='true'" in the match rule, which will
2786 not have any practical effect on buses where eavesdropping is not allowed
2787 (fd.o #37890, Cosimo Alfarano)
2791 • D-Bus Specification version 0.18 (fd.o #37890, fd.o #39450, fd.o #38252;
2792 Cosimo Alfarano, Simon McVittie)
2793 · add the "eavesdrop" keyword to match rules
2794 · define eavesdropping, unicast messages and broadcast messages
2795 · stop claiming that match rules are needed to match unicast messages to you
2796 · promote the type system to be a top-level section
2798 • Use DBUS_ERROR_OBJECT_PATH_IN_USE if dbus_connection_try_register_object_path
2799 or dbus_connection_try_register_fallback fails, not ...ADDRESS_IN_USE,
2800 and simplify object-path registration (fd.o #38874, Jiří Klimeš)
2802 • Consistently use atomic operations on everything that is ever manipulated
2803 via atomic ops, as was done for changes to DBusConnection's refcount in
2804 1.4.12 (fd.o #38005, Simon McVittie)
2806 • Fix a file descriptor leak when connecting to a TCP socket (fd.o #37258,
2809 • Make "make check" in a clean tree work, by not running tests until
2810 test data has been set up (fd.o #34405, Simon McVittie)
2812 • The dbus-daemon no longer busy-loops if it has a very large number of file
2813 descriptors (fd.o #23194, Simon McVittie)
2815 • Refactor message flow through dispatching to avoid locking violations if
2816 the bus daemon's message limit is hit; remove the per-connection link cache,
2817 which was meant to improve performance, but now reduces it (fd.o #34393,
2820 • Some cmake fixes (Ralf Habacker)
2822 • Remove dead code, mainly from DBusString (fd.o #38570, fd.o #39610;
2823 Simon McVittie, Lennart Poettering)
2825 • Stop storing two extra byte order indicators in each D-Bus message
2826 (fd.o #38287, Simon McVittie)
2828 • Add an optional Stats interface which can be used to get statistics from
2829 a running dbus-daemon if enabled at configure time with --enable-stats
2830 (fd.o #34040, Simon McVittie)
2832 • Fix various typos (fd.o #27227, fd.o #38284; Sascha Silbe, Simon McVittie)
2834 • Documentation (fd.o #36156, Simon McVittie):
2835 · let xsltproc be overridden as usual: ./configure XSLTPROC=myxsltproc
2836 · install more documentation automatically, including man2html output
2837 · put dbus.devhelp in the right place (it must go in ${htmldir})
2840 · look for system services in /lib/dbus-1/system-services in addition to all
2841 the other well-known locations; note that this should always be /lib,
2842 even on platforms where shared libraries on the root FS would go in /lib64,
2843 /lib/x86_64-linux-gnu or similar (fd.o #35229, Lennart Poettering)
2844 · opt-in to fd passing on Solaris (fd.o #33465, Simon McVittie)
2846 • Windows-specific (Ralf Habacker):
2847 · fix use of a mutex for autolaunch server detection
2848 · don't crash on malloc failure in _dbus_printf_string_upper_bound
2850 D-Bus 1.5.4 (2011-06-10)
2853 Security (local denial of service):
2855 • Byte-swap foreign-endian messages correctly, preventing a long-standing
2856 local DoS if foreign-endian messages are relayed through the dbus-daemon
2857 (backporters: this is git commit c3223ba6c401ba81df1305851312a47c485e6cd7)
2858 (CVE-2011-2200, fd.o #38120, Debian #629938; Simon McVittie)
2862 • The constant to use for an infinite timeout now has a name,
2863 DBUS_TIMEOUT_INFINITE. It is numerically equivalent to 0x7fffffff (INT32_MAX)
2864 which can be used for source compatibility with older versions of libdbus.
2866 • If GLib and DBus-GLib are already installed, more tests will be built,
2867 providing better coverage. The new tests can also be installed via
2868 ./configure --enable-installed-tests
2869 for system integration testing, if required. (fd.o #34570, Simon McVittie)
2873 • Consistently use atomic operations for the DBusConnection's refcount,
2874 fixing potential threading problems (fd.o #38005, Simon McVittie)
2876 • Don't use -Wl,--gc-sections by default: in practice the size decrease is
2877 small (300KiB on x86-64) and it frequently doesn't work in unusual
2878 toolchains. To optimize for minimum installed size, you should benchmark
2879 various possibilities for CFLAGS and LDFLAGS, and set the best flags for
2880 your particular toolchain at configure time. (fd.o #33466, Simon McVittie)
2882 • Use #!/bin/sh for run-with-tmp-session-bus.sh, making it work on *BSD
2883 (fd.o #35880, Timothy Redaelli)
2885 • Use ln -fs to set up dbus for systemd, which should fix reinstallation
2886 when not using a DESTDIR (fd.o #37870, Simon McVittie)
2888 • Windows-specific changes:
2889 · don't try to build dbus-daemon-launch-helper (fd.o #37838, Mark Brand)
2891 D-Bus 1.5.2 (2011-06-01)
2894 The "Boar Hunter" release.
2896 Notes for distributors:
2898 This version of D-Bus no longer uses -fPIE by default. Distributions wishing
2899 to harden the dbus-daemon and dbus-launch-helper can re-enable this if their
2900 toolchain supports it reliably, via something like:
2902 ./configure CFLAGS=-fPIE LDFLAGS="-pie -Wl,-z,relro"
2904 or by using distribution-specific wrappers such as Debian's hardening-wrapper.
2908 • D-Bus Specification v0.17
2909 · Reserve the extra characters used in signatures by GVariant
2910 (fd.o #34529, Simon McVittie)
2911 · Define the ObjectManager interface (fd.o #34869, David Zeuthen)
2912 • Don't force -fPIE: distributions and libtool know better than we do whether
2913 it's desirable (fd.o #16621, fd.o #27215; Simon McVittie)
2914 • Allow --disable-gc-sections, in case your toolchain offers the
2915 -ffunction-sections, -fdata-sections and -Wl,--gc-sections options
2916 but they're broken, as seen on Solaris (fd.o #33466, Simon McVittie)
2917 • Install dbus-daemon and dbus-daemon-launch-helper in a more normal way
2918 (fd.o #14512; Simon McVittie, loosely based on a patch from Luca Barbato)
2919 • Ensure that maintainers upload documentation with the right permissions
2920 (fd.o #36130, Simon McVittie)
2921 • Don't force users of libdbus to be linked against -lpthread, -lrt
2922 (fd.o #32827, Simon McVittie)
2923 • Log system-bus activation information to syslog (fd.o #35705,
2925 • Log messages dropped due to quotas to syslog (fd.o #35358,
2927 • Make the nonce-tcp transport work on Unix (fd.o #34569, Simon McVittie)
2928 • On Unix, if /var/lib/dbus/machine-id cannot be read, try /etc/machine-id
2929 (fd.o #35228, Lennart Poettering)
2930 • In the regression tests, don't report fds as "leaked" if they were open
2931 on startup (fd.o #35173, Simon McVittie)
2932 • Make dbus-monitor bail out if asked to monitor more than one bus,
2933 rather than silently using the last one (fd.o #26548, Will Thompson)
2934 • Clarify documentation (fd.o #35182, Simon McVittie)
2935 • Clean up minor dead code and some incorrect error handling
2936 (fd.o #33128, fd.o #29881; Simon McVittie)
2937 • Check that compiler options are supported before using them (fd.o #19681,
2940 • Remove obsolete workaround for winioctl.h (fd.o #35083, Ralf Habacker)
2942 D-Bus 1.5.0 (2011-04-11)
2945 The "you never know when you need to tow something from your giant
2946 flying shark" release.
2948 • D-Bus Specification v0.16
2949 · Add support for path_namespace and arg0namespace in match rules
2950 (fd.o #24317, #34870; Will Thompson, David Zeuthen, Simon McVittie)
2951 · Make argNpath support object paths, not just object-path-like strings,
2952 and document it better (fd.o #31818, Will Thompson)
2953 • Let the bus daemon implement more than one interface (fd.o #33757,
2955 • Optimize _dbus_string_replace_len to reduce waste (fd.o #21261,
2957 • Require user intervention to compile with missing 64-bit support
2958 (fd.o #35114, Simon McVittie)
2959 • Add dbus_type_is_valid as public API (fd.o #20496, Simon McVittie)
2960 • Raise UnknownObject instead of UnknownMethod for calls to methods on
2961 paths that are not part of the object tree, and UnknownInterface for calls
2962 to unknown interfaces in the bus daemon (fd.o #34527, Lennart Poettering)
2964 D-Bus 1.4.8 (2011-04-08)
2967 The "It's like the beginning of a lobster" release.
2969 • Rename configure.in to configure.ac, and update it to modern conventions
2970 (fd.o #32245; Javier Jardón, Simon McVittie)
2971 • Correctly give XDG_DATA_HOME priority over XDG_DATA_DIRS (fd.o #34496,
2973 • Prevent X11 autolaunching if $DISPLAY is unset or empty, and add
2974 --disable-x11-autolaunch configure option to prevent it altogether
2975 in embedded environments (fd.o #19997, NB#219964; Simon McVittie)
2976 • Install the documentation, and an index for Devhelp (fd.o #13495,
2977 Debian #454142; Simon McVittie, Matthias Clasen)
2978 • If checks are not disabled, check validity of string-like types and
2979 booleans when sending them (fd.o #16338, NB#223152; Simon McVittie)
2980 • Add UnknownObject, UnknownInterface, UnknownProperty and PropertyReadOnly
2981 errors to dbus-shared.h (fd.o #34527, Lennart Poettering)
2982 • Break up a huge conditional in config-parser so gcov can produce coverage
2983 data (fd.o #10887, Simon McVittie)
2984 • List which parts of the Desktop Entry specification are applicable to
2985 .service files (fd.o #19159, Sven Herzberg)
2986 • Don't suppress service activation if two services have the same Exec=
2987 (fd.o #35750, Colin Walters)
2989 · Avoid the name ELEMENT_TYPE due to namespace-pollution from winioctl.h
2991 · Include _dbus_path_is_absolute in libdbus on Windows, fixing compilation
2992 (fd.o #32805, Mark Brand)
2994 D-Bus 1.4.6 (2010-02-17)
2997 The "1, 2, miss a few, 99, 100" release.
2999 • Remove unfinished changes intended to support GTest-based tests,
3000 which were mistakenly included in 1.4.4
3002 D-Bus 1.4.4 (2010-02-17)
3005 • Switch back to using even micro versions for stable releases; 1.4.1
3006 should have been called 1.4.2, so skip that version number
3007 • Don't leave bad file descriptors being watched when spawning processes,
3008 which could result in a busy-loop (fd.o #32992, NB#200248; possibly
3009 also LP#656134, LP#680444, LP#713157)
3010 • Check for MSG_NOSIGNAL correctly
3011 • Fix failure to detect abstract socket support (fd.o #29895)
3012 • Make _dbus_system_logv actually exit with DBUS_SYSTEM_LOG_FATAL
3013 (fd.o #32262, NB#180486)
3014 • Improve some error code paths (fd.o #29981, fd.o #32264, fd.o #32262,
3015 fd.o #33128, fd.o #33277, fd.o #33126, NB#180486)
3016 • Avoid possible symlink attacks in /tmp during compilation (fd.o #32854)
3017 • Tidy up dead code (fd.o #25306, fd.o #33128, fd.o #34292, NB#180486)
3018 • Improve gcc malloc annotations (fd.o #32710)
3019 • If the system bus is launched via systemd, protect it from the OOM killer
3020 • Documentation improvements (fd.o #11190)
3021 • Avoid readdir_r, which is difficult to use correctly (fd.o #8284,
3022 fd.o #15922, LP#241619)
3023 • Cope with invalid files in session.d, system.d (fd.o #19186,
3025 • Don't distribute generated files that embed our builddir (fd.o #30285,
3027 • Raise the system bus's fd limit to be sufficient for its configuration
3028 (fd.o #33474, LP#381063)
3029 • Fix syslog string processing
3031 • Remove broken gcov parsing code and --enable-gcov, and replace them
3032 with lcov HTML reports and --enable-compiler-coverage (fd.o #10887)
3034 · avoid live-lock in Windows CE due to unfair condition variables
3036 · support credentials-passing (fd.o #32542)
3038 · opt-in to thread safety (fd.o #33464)
3040 D-Bus 1.4.1 (20 December 2010)
3043 • Fix for CVE-2010-4352: sending messages with excessively-nested variants can
3044 crash the bus. The existing restriction to 64-levels of nesting previously
3045 only applied to the static type signature; now it also applies to dynamic
3046 nesting using variants. Thanks to Rémi Denis-Courmont for discoving this
3048 • OS X portability fixes, including launchd support.
3049 • Windows autolaunch improvements.
3050 • Various bug fixes.
3052 D-Bus 1.4.0 (6 Sep 2010)
3056 D-Bus 1.3.1 (23 June 2010)
3058 - New standardized PropertiesChanged signal in the properties interface
3059 - Various portability fixes, in particular to Windows platforms
3060 - Support forking bus services, for compatibility
3062 D-Bus 1.3.0 (29 July 2009)
3064 - ability for dbus-send to send to any bus (--address)
3065 - file descriptor passing on Unix socket transports
3066 - use of GCC atomic intrinsics for better processor support
3067 (requires -march=i486 or above for x86 compilation)
3068 - thread-safe FD_CLOEXEC setting on recent Linux kernels (2.6.24-27 and up)
3069 and glibc (2.9 for pipe2 and 2.10 for accept4)
3070 - feature negotiation in the bus daemon