1 dbus 1.12.12 (2018-12-04)
2 =========================
4 The “draconic disciple” release.
6 dbus version control is now hosted on freedesktop.org's Gitlab
7 installation, and bug reports and feature requests have switched from
8 Bugzilla bugs (indicated by "fd.o #nnn") to Gitlab issues ("dbus#nnn")
9 and merge requests ("dbus!nnn").
13 • Reference the freedesktop.org Code of Conduct (Simon McVittie)
17 • Stop the dbus-daemon leaking memory (an error message) if delivering
18 the message that triggered auto-activation is forbidden. This is
19 technically a denial of service because the dbus-daemon will
20 run out of memory eventually, but it's a very slow and noisy one,
21 because all the rejected messages are also very likely to have
22 been logged to the system log, and its scope is typically limited by
23 the finite number of activatable services available.
24 (dbus#234, Simon McVittie)
26 • Remove __attribute__((__malloc__)) attribute on dbus_realloc(),
27 which does not meet the criteria for that attribute in gcc 4.7+,
28 potentially leading to miscompilation (fd.o #107741, Simon McVittie)
30 • Fix some small O(1) memory leaks (fd.o #107320, Simon McVittie)
32 • Fix printf formats for pointer-sized integers on 64-bit Windows
33 (fd.o #105662, Ralf Habacker)
35 • Always use select()-based poll() emulation on Darwin-based OSs
36 (macOS, etc.) and on Interix, similar to what libcurl does
37 (dbus#232, dbus!19; Simon McVittie)
39 • Extend a test timeout to avoid spurious failures in CI
40 (dbus!26, Simon McVittie)
44 • Add Travis-CI builds for 64-bit Windows using mingw-w64
45 (fd.o #105662, Ralf Habacker)
47 • Add Gitlab-CI integration (fd.o #108177, Simon McVittie)
49 dbus 1.12.10 (2018-08-02)
50 =========================
52 The “beam deflection” release.
56 • Prevent reading up to 3 bytes beyond the end of a truncated message.
57 This could in principle be an information leak or denial of service
58 on the system bus, but is not believed to be exploitable to crash
59 the system bus or leak interesting information in practice.
60 (fd.o #107332, Simon McVittie)
62 • Fix build with gcc 8 -Werror=cast-function-type
63 (fd.o #107349, Simon McVittie)
65 • Fix warning from gcc 8 about suspicious use of strncpy() when
66 populating struct sockaddr_un (fd.o #107350, Simon McVittie)
68 • Fix a minor memory leak when a DBusServer listens on a new address
69 (fd.o #107194, Simon McVittie)
71 • Fix an invalid NULL argument to rmdir() if a nonce-tcp DBusServer
72 runs out of memory (fd.o #107194, Simon McVittie)
74 • Don't use misleading errno-derived error names if getaddrinfo() or
75 getnameinfo() fails with a code other than EAI_SYSTEM
76 (fd.o #106395, Simon McVittie)
78 • Skip tests that require working TCP if we are in a container environment
79 where 127.0.0.1 cannot be resolved (fd.o #106812, Simon McVittie)
81 dbus 1.12.8 (2018-04-30)
82 ========================
84 The “golden super-velociraptor” release.
88 • The Devhelp documentation index is now in version 2 format
89 (fd.o #106186, Simon McVittie)
91 • Give the dbus-daemon man page some scarier warnings about
92 <allow_anonymous/> and non-local TCP, which are insecure and should
93 not be used, particularly for the standard system and session buses
94 (fd.o #106004, Simon McVittie)
98 • Fix installation of Ducktype documentation with newer yelp-build
99 versions (fd.o #106171, Simon McVittie)
101 dbus 1.12.6 (2018-03-01)
102 ========================
104 The “just the one swan, actually” release.
108 • Increase system dbus-daemon's RLIMIT_NOFILE rlimit before it drops
109 privileges, because it won't have permission afterwards. This fixes a
110 regression in dbus 1.10.18 and 1.11.0 which made the standard system bus
111 more susceptible to deliberate or accidental denial of service.
112 (fd.o #105165, David King)
114 dbus 1.12.4 (2018-02-08)
115 ========================
117 The “Stria Campania 115” release.
121 • When iterating the DBusConnection while blocking on a pending call,
122 don't wait for I/O if that pending call already has a result; and make
123 sure that whether it has a result is propagated in a thread-safe way.
124 This prevents certain multi-threaded calling patterns from blocking
125 until their timeout even when they should have succeeded sooner.
126 (fd.o #102839; Manish Narang, Michael Searle)
128 • Report the correct error if OOM is reached while trying to listen
129 on a TCP socket (fd.o #89104, Simon McVittie)
131 • Fix assertion failures in recovery from OOM while setting up a
132 DBusServer (fd.o #89104, Simon McVittie)
134 • Add a missing space to a warning message (fd.o #103729, Thomas Zajic)
136 • Expand ${bindir} correctly when pkg-config is asked for dbus_daemondir
137 (fd.o #104265, Benedikt Heine)
139 • On Linux systems with systemd < 237, if ${localstatedir}/dbus doesn't
140 exist, create it before trying to create ${localstatedir}/dbus/machine-id
141 (fd.o #104577, Chris Lesiak)
143 • Fix escaping in dbus-api-design document (fd.o #104925, Philip Withnall)
145 dbus 1.12.2 (2017-11-13)
146 ========================
148 The “spider pumpkin” release.
152 • Log a warning if a new connection cannot be accepted due to an
153 out-of-memory condition or failure to identify its AppArmor or
154 SELinux context (fd.o #103592, Simon McVittie)
158 • Make use of $(MKDIR_P) compatible with install-sh, fixing build when a
159 GNU-compatible `mkdir -p` is not available (fd.o #103521, ilovezfs)
161 • When building for Windows with Autotools, avoid `echo -e`, fixing
162 cross-compilation on non-GNU platforms like macOS
163 (fd.o #103493, Tony Theodore)
165 • Fix crashes in the server side of the nonce-tcp: transport under
166 various error conditions. This transport should normally only be used
167 on Windows, where AF_UNIX sockets are unavailable; the unix: transport
168 is the only one recommended for production use on Unix platforms.
169 (fd.o #103597, Simon McVittie)
173 • Improve test coverage on Travis-CI (Simon McVittie)
175 dbus 1.12.0 (2017-10-30)
176 ========================
178 The “gingerbread skull” release.
180 1.12.x is a new stable branch, recommended for use in OS
183 Summary of major changes between 1.10.x and 1.12.0
184 --------------------------------------------------
188 • Expat >= 2.1.0 is required.
189 • GLib >= 2.40 is required if full test coverage is enabled.
190 • [Linux] libselinux >= 2.0.86 is required if SELinux support is
192 • [Unix] dbus now requires an <inttypes.h> that defines C99 constants
193 such as PRId64 and PRIu64, except when building for Windows.
194 • [Autotools] Building from git (but not from tarballs) with Autotools
195 now requires macros from the GNU Autoconf Archive.
196 • [CMake] Builds done using CMake now require CMake 3.0.2.
198 Build-time configuration changes:
200 • Expat is now found using pkg-config. See the release notes for
202 • The --disable-compiler-optimisations and --enable-compiler-coverage
203 options no longer exist. See the release notes for 1.11.4 and 1.11.8.
204 • [Unix] The --enable-abstract-sockets and --disable-abstract-sockets
205 options no longer exist. See the release notes for 1.11.20.
206 • [Unix] Flag files in /var/run/console/${username} are no longer
207 checked for at_console by default. See the release notes for 1.11.18.
208 • [Unix, Cygwin] Init scripts are no longer provided by upstream dbus,
209 and packagers will now need to add these downstream (most already do).
210 See the release notes for 1.11.18.
211 • [Unix] The process ID file no longer has a different default location
212 on Red Hat derivatives. See the release notes for 1.11.18.
213 • [Unix] ${runstatedir} is now independent of ${localstatedir} with
214 recent Autotools versions. See the release notes for 1.11.16.
215 • [Windows] The WINDRES variable is no longer used. See the release
220 • Eavesdropping is officially deprecated in favour of BecomeMonitor.
221 See the release notes for spec version 0.31 (in dbus 1.11.14).
222 • [Unix] Flag files in /var/run/console/${username} are deprecated.
223 See the release notes for 1.11.18.
227 • <allow> and <deny> rules in dbus-daemon configuration can now
228 include send_broadcast="true", send_broadcast="false",
229 max_unix_fds="N", min_unix_fds="N" (for some integer N).
230 See the release notes for 1.11.18.
231 • dbus_try_get_local_machine_id() is like
232 dbus_get_local_machine_id(), but returns a DBusError.
233 • New APIs around DBusMessageIter to simplify cleanup.
234 See the release notes for 1.11.16.
235 • The message bus daemon now implements the standard Introspectable,
236 Peer and Properties interfaces. See the release notes for
237 dbus 1.11.14 and spec version 0.31.
238 • DTDs for introspection XML and bus configuration are installed.
239 • dbus can be compiled to be relocatable, making it more suitable for
240 binary bundling with other software. On Windows, this is on by
242 • [Unix] A new unix:dir=… address family resembles unix:tmpdir=… but
243 never uses Linux abstract sockets, which is advantageous for
244 containers. On non-Linux it is equivalent to unix:tmpdir=….
245 See the release notes for dbus 1.11.14 and spec version 0.31.
246 • [Unix] New option "dbus-launch --exit-with-x11".
247 • [Unix] Session managers can create transient .service files in
248 $XDG_RUNTIME_DIR/dbus-1/services. See the release notes for 1.11.12.
249 • [Unix] A sysusers.d snippet can create the messagebus user on-demand.
251 Miscellaneous behaviour changes:
253 • [Unix] The session bus now logs to syslog if it was started by
255 • [Unix] Internal warnings are logged to syslog if configured.
256 • [Unix] Exceeding an anti-DoS limit is logged to syslog if configured,
259 Changes since 1.11.22 release candidate
260 ---------------------------------------
262 Standard stable-branch changes:
264 • Disable warnings about use of deprecated functions (Simon McVittie)
268 • Don't distribute files generated by ./configure in the source tarball
269 (fd.o #103420, Simon McVittie)
273 • Remove some unused files from the git repository
274 (fd.o #103420, Simon McVittie)
276 D-Bus 1.11.22 (2017-10-23)
277 ==========================
279 The “fire surface” release.
281 This is the first release-candidate for the 1.12.0 stable release.
283 Build-time configuration changes:
285 • When building for Windows with Autotools, setting the WINDRES variable
286 no longer works to select a non-standard resource compiler. Use
287 libtool's standard RC variable instead, for example
288 "./configure RC=i686-w64-mingw32-windres"
292 • Builds done using CMake now require CMake 3.0.2.
296 • When building for Windows, improve quality of metadata in
297 libdbus-1-3.dll (fd.o #103015, Ralf Habacker)
301 • Fix a typo "uint 16" in dbus-send(1) man page
302 (fd.o #103075, David King)
304 • When building for Windows, libdbus-1-3.dll always includes version
305 information. Previously, this was missing if using CMake and any
306 non-MSVC compiler. (fd.o #103015, Ralf Habacker)
308 • Fix the build with MSVC, which regressed with the #102558 fix in
309 1.11.20. (fd.o #102558, Ralf Habacker)
313 • Simplify Windows resource embedding
314 (fd.o #103015, Simon McVittie)
316 D-Bus 1.11.20 (2017-10-03)
319 The “wraith stun” release.
321 Build-time configuration changes:
323 • The --enable-abstract-sockets and --disable-abstract-sockets options
324 no longer exist. Support for Linux's abstract AF_UNIX sockets is now
325 unconditionally enabled on Linux and disabled everywhere else.
326 (fd.o #34905, Simon McVittie)
330 • Make slower tests less likely to time out, and improve diagnostics if
331 tests do time out (fd.o #103009, Simon McVittie)
333 • On Windows, don't compile an unused stub implementation of
334 _dbus_set_signal_handler() (fd.o #103010, Simon McVittie)
338 • Be more careful to save and restore errno in POSIX async signal
339 handlers (fd.o #103010, Simon McVittie)
341 • On Windows, embed a manifest in dbus-update-activation-environment.exe
342 so that the heuristics used for UAC do not assume it needs elevated
343 privileges due to its name containing "update"
344 (fd.o #102558, Ralf Habacker)
346 • On Windows with Automake, embed version information in libdbus-1,
347 as was meant to happen in all versions since 2009
348 (fd.o #103015, Simon McVittie)
350 D-Bus 1.11.18 (2017-09-25)
353 The “vampire conquistador” release.
355 Build-time configuration changes:
357 • By default, dbus-daemon on Unix no longer checks for flag files
358 /var/run/console/${username} created by the obsolete pam_console and
359 pam_foreground PAM modules when deciding whether ${username} is
360 currently at the console. The old default behaviour can be restored
361 by specifying --with-console-auth-dir=/var/run/console in the
362 recommended Autotools build system, or
363 -DDBUS_CONSOLE_AUTH_DIR=/var/run/console in CMake. This feature is
364 now deprecated, and will be removed in dbus 1.13 unless feedback via
365 fd.o #101629 indicates that this would be problematic.
366 (fd.o #101629, Simon McVittie)
368 • LSB-style init scripts for Red Hat and Slackware, and a non-LSB init
369 script for Cygwin, are no longer provided in the upstream dbus
370 source. We recommend that distributors who support non-systemd service
371 management should maintain their own init scripts or other service
372 manager integration as part of their downstream packaging, similar to
373 the way Debian distributes a Debian-specific LSB init script for dbus.
375 The systemd unit continues to be maintained as part of the upstream
376 dbus source, because it receives regular testing and maintenance.
378 (fd.o #101706, Simon McVittie)
380 • The process ID file created by the system bus is no longer influenced
381 by the --with-init-scripts=redhat configure option or the presence of
382 /etc/redhat-release at build time. If your OS's init script or other
383 service management relies on the Red Hat-style pid file, it can be
384 restored by specifying --with-system-pid-file=/run/messagebus.pid at
385 configure time or using the <pidfile> directive in bus configuration.
387 Note that the upstream-supplied systemd unit runs dbus-daemon with
388 the --nopidfile option, so it does not normally write a pid file,
389 regardless of whether the OS is Red-Hat-derived or not.
391 (fd.o #101706, Simon McVittie)
395 • <allow> and <deny> rules in dbus-daemon configuration can now
396 include send_broadcast="true" or send_broadcast="false", which make
397 the rule only match broadcast signals, or only match messages that
398 are not broadcast signals, respectively.
399 (fd.o #29853, Simon McVittie)
401 • <allow> and <deny> rules can now be configured to apply only to
402 messages with or without Unix file descriptors attached. This would
403 typically be used in rules like these:
404 <allow send_destination="..." max_unix_fds="0"/>
405 <deny send_destination="..." min_unix_fds="1"/>
406 <deny receive_sender="..." min_unix_fds="1"/>
407 but can also be used to set a nonzero upper limit on the number of
409 <allow send_destination="..." max_unix_fds="4"/>
410 (fd.o #101848, Simon McVittie)
412 • On Unix platforms, the DBUS_COOKIE_SHA1 authentication mechanism
413 now respects the HOME environment variable on the client side, and
414 on the server side when the uid attempting to connect is the same
415 as the uid of the server. This allows the automated tests to pass in
416 environments where the user's "official" home directory in /etc/passwd
417 is nonexistent, such as Debian autobuilders.
418 (fd.o #101960, Simon McVittie)
422 • When parsing dbus-daemon configuration, tell Expat not to use
423 cryptographic-quality entropy as a salt for its hash tables: we trust
424 the configuration files, so we are not concerned about algorithmic
425 complexity attacks via hash table collisions. This prevents
426 dbus-daemon --system from holding up the boot process (and causing
427 early-boot system services like systemd, logind, networkd to time
428 out) on entropy-starved embedded systems.
429 (fd.o #101858, Simon McVittie)
431 • Avoid a -Werror=declaration-after-statement build failure on Solaris
432 (fd.o #102145, Alan Coopersmith)
434 • On Unix platform, drop DBUS_SYSTEM_LOG_INFO messages from LOG_NOTICE
435 to LOG_INFO, matching how we use this log level in practice
436 (fd.o #102686, Simon McVittie)
438 D-Bus 1.11.16 (2017-07-27)
441 The “south facing garden” release.
443 Build-time configuration changes:
445 • The Autotools build system now supports varying ${runstatedir}
446 independently of ${localstatedir}, if using an Autoconf version
447 that has that feature; version 2.70 will eventually have this, but
448 many Linux distributions add it to version 2.69 as a patch.
449 A typical use is to set prefix=/usr, sysconfdir=/etc, localstatedir=/var
450 and runstatedir=/run. (fd.o #101569, Simon McVittie)
454 • New APIs DBUS_MESSAGE_ITER_INIT_CLOSED, dbus_message_iter_init_closed()
455 and dbus_message_iter_abandon_container_if_open() simplify the
456 single-exit-point ("goto out") style of resource cleanup. The API
457 documentation around DBusMessageIter and containers has also been
458 clarified. (fd.o #101568, Simon McVittie)
462 • Fix the implementation of re-enabling a timeout (again) so that its
463 countdown is always restarted as intended. (fd.o #95619,
466 • Make the dbus-daemon's Properties interface, as introduced in 1.11.14,
467 available to all users on the system bus (fd.o #101700, Simon McVittie)
469 • dbus_message_iter_append_basic() no longer leaks memory if it fails to
470 append a file descriptor to a message. (fd.o #101568, Simon McVittie)
472 • dbus_message_iter_open_container() no longer leaks memory if it runs out
473 of memory. (fd.o #101568, Simon McVittie)
475 • dbus_message_append_args_valist() no longer leaks memory if given an
476 unsupported type. This situation is still considered to be a programming
477 error which needs to be corrected by the user of libdbus.
478 (fd.o #101568, Simon McVittie)
480 • dbus_message_iter_append_basic() and dbus_message_iter_open_container()
481 will no longer report that their arguments were invalid if they run out
482 of memory at exactly the wrong time. (fd.o #101568, Simon McVittie)
484 • Ensure that tests fail if they would otherwise have tried to connect to
485 the real session bus (fd.o #101698, Simon McVittie)
487 • Make build-time tests cope with finding Python 3, but not Python 2
488 (fd.o #101716, Simon McVittie)
490 Internal changes relevant to dbus developers:
492 • DBusVariant is a new mechanism to copy single values from a message into
493 a buffer without copying the entire message (fd.o #101568, Simon McVittie)
495 • DBUS_SYSTEM_LOG_FATAL has been replaced by DBUS_SYSTEM_LOG_ERROR.
496 Logging an ERROR message does not make the process exit; the caller
497 is responsible for calling abort() or exit(), whichever is more appropriate.
498 (fd.o #101568, Simon McVittie)
500 • Better test coverage (fd.o #101568, Simon McVittie)
502 D-Bus 1.11.14 (2017-06-29)
505 The “irrational fear of bees” release.
509 • Expat >= 2.1.0 is always required
510 • libselinux >= 2.0.86 is required if SELinux support is enabled
511 • GLib >= 2.40 is required if full test coverage is enabled
513 Build-time configuration changes:
515 • We now use pkg-config to find libexpat in Autotools builds. This requires
516 Expat 2.1.0 (March 2012) or later. In particular, this should remove the
517 need to configure with LDFLAGS=-L/usr/local/lib on OpenBSD, which can
518 itself cause compilation failures.
520 As with all pkg-config-based configure checks, you can use
521 PKG_CONFIG_PATH=/whatever/lib/pkgconfig to find expat.pc in a
522 non-standard prefix, or EXPAT_CFLAGS="-I/whatever/include" and
523 EXPAT_LIBS="-L/whatever/lib -lexpat" to avoid needing a .pc file
526 (fd.o #69801, Simon McVittie)
528 • Similarly, we now use pkg-config to find libselinux. Version 2.0.86
529 is required due to the removal of explicit refcounting for SIDs.
530 (fd.o #100912, Laurent Bigonville)
534 • Previously, /etc/machine-id could be copied to /var/lib/dbus/machine-id
535 as a side-effect of a sufficiently privileged process merely reading the
536 machine ID. It is no longer copied as a side-effect of reading.
537 Running dbus-uuidgen --ensure, which should be done after installing dbus,
538 continues to copy /etc/machine-id to /var/lib/dbus/machine-id if the
539 former exists and the latter does not.
540 (fd.o #101257, Simon McVittie)
542 • The undocumented Verbose interface, and the GetAllMatchRules method on
543 the undocumented Stats interface, must now be used via the object path
544 /org/freedesktop/DBus. Previously, they existed on all object paths.
545 (fd.o #101257, Simon McVittie)
547 • AddMatch() with a match rule containing eavesdrop='true' will now fail
548 unless called by either the same user as the dbus-daemon, or Unix uid 0
549 (root), matching the restrictions applied to the newer BecomeMonitor()
550 method. On the session bus this has no practical effect. On the system
551 bus this will prevent certain configurations that already did not
552 work well in practice. (fd.o #101567, Simon McVittie)
556 • D-Bus Specification version 0.31
557 · Don't require implementation-specific search paths to be lowest
559 · Correct regex syntax for optionally-escaped bytes in addresses so it
560 includes hyphen-minus, forward slash and underscore as intended
561 · Describe all message bus methods in the same section
562 · Clarify the correct object path for method calls to the message bus
563 (/org/freedesktop/DBus, DBUS_PATH_DBUS in the reference implementation)
564 · Document that the message bus implements Introspectable, Peer and
566 · Add new Features and Interfaces properties for message bus
568 · Add unix:dir=..., which resembles unix:tmpdir=... but never uses
570 · Don't require eavesdrop='true' to be accepted from connections not
571 sufficiently privileged to use it successfully
572 · Formally deprecate eavesdropping in favour of BecomeMonitor
573 (fd.o #99825, #100686, #100795, #101256, #101257, #101567;
574 Simon McVittie, Tom Gundersen)
576 • Implement the Properties and Peer interfaces in dbus-daemon
577 (fd.o #101257, Simon McVittie)
579 • New function dbus_try_get_local_machine_id() is like
580 dbus_get_local_machine_id(), but returning a DBusError. Other code
581 that needs the machine ID will now report a recoverable error (instead
582 of logging to stderr and aborting) if no machine ID is available.
583 Generating a machine ID is still considered to be a required part of
584 installing dbus correctly. (fd.o #13194, Simon McVittie)
586 • Implement GetConnectionSELinuxSecurityContext("org.freedesktop.DBus")
587 (fd.o #101315, Laurent Bigonville)
589 • Avoid deprecated API calls when using SELinux
590 (fd.o #100912, Laurent Bigonville)
592 • Switch a test from the deprecated g_test_trap_fork() to
593 g_test_trap_subprocess(), for Windows support and better robustness
594 on Unix (fd.o #101362, Simon McVittie)
596 • On systemd systems, if ${localstatedir}/dbus/machine-id doesn't exist,
597 instruct systemd-tmpfiles to make it a symbolic link to /etc/machine-id.
598 This prevents the two files from going out of sync on stateless or live
599 images without needing to run dbus-uuidgen, and supports older D-Bus
600 implementations that do not necessarily read /etc/machine-id themselves.
601 (fd.o #101570, Simon McVittie)
603 • Implement unix:dir=..., which resembles unix:tmpdir=... but never uses
604 abstract sockets. This is preferable when used with Linux containers.
605 (fd.o #101567, Simon McVittie)
609 • Fix a reference leak when blocking on a pending call on a connection
610 that has been disconnected (fd.o #101481, Shin-ichi MORITA)
612 • Don't put timestamps in the Doxygen-generated documentation,
613 or hard-code the build directory into builds with embedded tests,
614 for reproducible builds (fd.o #100692, Simon McVittie)
616 • Fix some integration test issues (fd.o #100686, Simon McVittie)
618 • Fix memory leaks in the tests (fd.o #101257, Simon McVittie)
620 • If we somehow get an autolaunch address with multiple semicolon-separated
621 components, and they don't work, don't invalidly "pile up" errors
622 (fd.o #101257, Simon McVittie)
626 • Update git URIs in HACKING document to sync up with cgit.freedesktop.org
627 (fd.o #100715, Simon McVittie)
629 D-Bus 1.11.12 (2017-04-07)
632 The “it's something humans do” release.
636 • The session dbus-daemon now supports transient .service files
637 in $XDG_RUNTIME_DIR/dbus-1/services. Unlike the other standard
638 service directories, this directory is not monitored with inotify
639 or similar, and the service files must be named exactly
640 ${bus_name}.service. (fd.o #99825, Simon McVittie)
642 • dbus can be configured with --enable-relocation when building with
643 Autotools, or with -DDBUS_RELOCATABLE=ON when building with cmake,
644 to make the pkg-config metadata relocatable. This is useful for
645 non-standard prefixes, and in particular for Windows installations.
646 However, it is not recommended for system-wide installations into
647 /usr, because it interferes with pkg-config's ability to filter out
648 compiler default linker directories.
650 With Autotools, the default is --enable-relocation when building
651 for Windows or --disable-relocation otherwise. With CMake, the default
652 is -DDBUS_RELOCATABLE=ON.
654 (fd.o #99721; Ralf Habacker, Simon McVittie)
656 • Users of CMake ≥ 2.6 can now link to libdbus without providing their
657 own FindDBus.cmake macros, whether dbus was compiled with Autotools
658 or with CMake. See the end of README.cmake for more information.
659 (fd.o #99721; Ralf Habacker, Simon McVittie)
663 • Always read service file directories in the intended order
664 (fd.o #99825, Simon McVittie)
666 • When tests are skipped, don't try to kill nonexistent process 0
667 (fd.o #99825, Simon McVittie)
669 • Avoid valgrind false positives (fd.o #88808, Philip Withnall)
671 • Fix a harmless read overflow and some memory leaks in a unit test
672 (fd.o #100568, Philip Withnall)
674 • Fix some typos in test code
675 (fd.o #99999, Coverity #141876, #141877; Philip Withnall)
677 • Clarify the roles of /etc/dbus-1/s*.d and /usr/share/dbus-1/s*.d
678 in documentation (fd.o #99901, Philip Withnall)
680 • Fix and enable compiler warnings related to -Wswitch
681 (fd.o #98191; Thomas Zimmermann, Simon McVittie)
683 • Fix writing off the end of a fd_set when testing with valgrind
684 (fd.o #99839, Philip Withnall)
686 D-Bus 1.11.10 (2017-02-16)
689 The “purple hair gives you telekinesis?” release.
693 • AppArmor support requires at least libapparmor 2.8.95, reduced
694 from 2.10 in previous versions. One test requires 2.10 and is
695 skipped if building with an older version.
699 • Do the Travis-CI build in Docker containers for Ubuntu LTS, Debian
700 stable and Debian testing in addition to the older Ubuntu that is
701 the default (fd.o #98889, Simon McVittie)
703 • Avoid some deprecated CMake functions (fd.o #99586, Ralf Habacker)
705 • Silence many -Wswitch-enum and -Wswitch-default warnings
706 (fd.o #98191; Thomas Zimmermann, Simon McVittie)
708 • Install a sysusers.d snippet so `dbus-daemon --system` can be used
709 with an unpopulated /etc (fd.o #99162, Lennart Poettering)
711 • Install pkg-config metadata on Unix even if building with CMake
712 (fd.o #99752, Ralf Habacker)
714 • Exclude auth mechanisms from REJECTED message if they are supported
715 in the code but but configured to be disallowed (fd.o #99621,
720 • Prevent symlink attacks in the nonce-tcp transport on Unix that could
721 allow an attacker to overwrite a file named "nonce", in a directory
722 that the user running dbus-daemon can write, with a random value
723 known only to the user running dbus-daemon. This is unlikely to be
724 exploitable in practice, particularly since the nonce-tcp transport
725 is really only useful on Windows.
727 On Unix systems we strongly recommend using only the unix: and systemd:
728 transports, together with EXTERNAL authentication. These are the only
729 transports and authentication mechanisms enabled by default.
731 (fd.o #99828, Simon McVittie)
733 • Avoid symlink attacks in the "embedded tests", which are not enabled
734 by default and should never be enabled in production builds of dbus.
735 (fd.o #99828, Simon McVittie)
737 • Fix the implementation of re-enabling a timeout so that its
738 countdown is restarted as intended, instead of continually
739 decreasing. (fd.o #95619; Michal Koutný, Simon McVittie)
741 • When receiving a message with file descriptors, do not start reading
742 the beginning of the next message, so that only one such message
743 is processed at a time. In conjunction with the fix for #95619
744 this means that processes sending many file descriptors, such as
745 systemd-logind on a system that receives very rapid ssh connections,
746 are not treated as abusive and kicked off the bus. Revert the previous
747 workaround that special-cased uid 0.
748 (fd.o #95263, LP#1591411; Simon McVittie)
750 • Do not require TMPDIR, TEMP or TMP to be set when cross-compiling
751 for Windows with CMake (fd.o #99586, Ralf Habacker)
753 • Do not set Unix-specific variables when targeting Windows
754 (fd.o #99586, Ralf Habacker)
756 • Install Unix executables to ${CMAKE_INSTALL_PREFIX}/bin as intended,
757 not ${CMAKE_INSTALL_PREFIX}/lib (fd.o #99752, Ralf Habacker)
759 • Use relative install locations in CMake on Unix to respect DESTDIR,
760 and use GNU-style install layout (fd.o #99721, #99752; Ralf Habacker)
762 • Install dbus-arch-deps.h correctly when using CMake
763 (fd.o #99586, #99721; Ralf Habacker)
765 • Improve argument validation for `dbus-test-tool spam`
766 (ffd.o #99693, Coverity #54759; Philip Withnall)
768 • Don't shift by a negative integer if a hash table becomes monstrously
769 large (fd.o #99641, Coverity #54682; Philip Withnall)
771 • Don't leak LSM label if dbus-daemon runs out of memory when dealing with
772 a new connection (fd.o #99612, Coverity #141058; Philip Withnall)
774 • Remove an unnecessary NULL check
775 (fd.o #99642, Coverity #141062; Philip Withnall)
777 • Improve error handling in unit tests and dbus-send
778 (fd.o #99643, #99694, #99712, #99722, #99723, #99724, #99758,
779 #99759, #99793, Coverity #54688, #54692, #54693, #54697, #54701,
780 #54710, #54711, #54714, #54715, #54718, #54721, #54724, #54726,
781 #54730, #54740, #54822, #54823, #54824, #54825; Philip Withnall)
783 • Do not print verbose messages' timestamps to stderr if the actual message
784 has been redirected to the Windows debug port (fd.o #99749, Ralf Habacker)
786 D-Bus 1.11.8 (2016-11-28)
789 The “panics in the face of breakfast foods” release.
791 Build-time configuration:
793 • The new --enable-debug configure option provides an easy way to
794 enable debug symbols, disable optimization and/or enable profiling.
796 • The --enable-compile-warnings configure option can be used to control
799 • The --disable-compiler-optimisations configure option is no longer
800 supported. Use --enable-debug=yes or CFLAGS=-O0 instead.
804 • D-Bus Specification version 0.30
805 · Define the jargon term "activation" more clearly
806 · Define the jargon term "auto-starting", which is one form of activation
807 · Document the optional SystemdService key in service files
808 · Use versioned interface and bus names in most examples
809 · Clarify intended behaviour of Properties.GetAll
810 (fd.o #36190, fd.o #98671; Philip Withnall, Simon McVittie)
812 • Fix and enable a lot of compiler warnings to improve future code
813 quality. This might incidentally also fix some environment variable
815 · In particular, printf-style functions in the libdbus API are now annotated
816 with __attribute__((__format__(__printf__, *, *))) when compiling with
817 gcc or clang. This might make printf bugs in other software visible
819 (fd.o #97357, fd.o #98192, fd.o #98195, fd.o #98658;
820 Thomas Zimmermann, Simon McVittie)
822 • When running with AppArmor mediation (for example using Ubuntu's patched
823 Linux kernel), clients can no longer auto-start services unless they would
824 have been able to send the auto-starting message to the service after it
825 starts. StartServiceByName() is unaffected, and continues to be allowed by
826 default in AppArmor's <abstractions/dbus-strict> and
827 <abstractions/dbus-session-strict>. (fd.o #98666, Simon McVittie)
831 • Work around an undesired effect of the fix for CVE-2014-3637
832 (fd.o #80559), in which processes that frequently send fds, such as
833 logind during a flood of new PAM sessions, can get disconnected for
834 continuously having at least one fd "in flight" for too long;
835 dbus-daemon interprets that as a potential denial of service attack.
836 The workaround is to disable that check for uid 0 process such as
837 logind, with a message in the system log. The bug remains open while
838 we look for a more general solution.
839 (fd.o #95263, LP#1591411; Simon McVittie)
841 • Don't run the test test-dbus-launch-x11.sh if X11 autolaunching
842 was disabled at compile time. That test is not expected to work
843 in that configuration. (fd.o #98665, Simon McVittie)
845 D-Bus 1.11.6 (2016-10-10)
848 The “darkly whimsical” release.
852 • Do not treat ActivationFailure message received from root-owned systemd
853 name as a format string. In principle this is a security vulnerability,
854 but we do not believe it is exploitable in practice, because only
855 privileged processes can own the org.freedesktop.systemd1 bus name, and
856 systemd does not appear to send activation failures that contain "%".
858 Please note that this probably *was* exploitable in dbus versions
859 older than 1.6.30, 1.8.16 and 1.9.10 due to a missing check which at
860 the time was only thought to be a denial of service vulnerability
861 (CVE-2015-0245). If you are still running one of those versions,
862 patch or upgrade immediately.
864 (fd.o #98157, Simon McVittie)
868 • D-Bus Specification version 0.29
869 · Recommend not using '/' for object paths (fd.o #37095, Philip Withnall)
870 · Allow <annotation> in <arg> elements (fd.o #86162, Philip Withnall)
872 • Log to syslog when we exceed various anti-DoS limits, and add test
873 coverage for them (fd.o #86442, Simon McVittie)
875 • Improve syslog handling so that _dbus_warn() and similar warnings
876 go to syslog, add dbus-daemon --syslog|--nosyslog|--syslog-only options,
877 and log to syslog (instead of /dev/null) when dbus-daemon is started by
878 dbus-launch. (fd.o #97009, Simon McVittie)
880 • Install introspect.dtd and busconfig.dtd to ${datadir}/xml/dbus-1
881 (fd.o #89011, Philip Withnall)
883 • When logging messages about service activation, mention which peer
884 requested the activation (fd.o #68212, Philip Withnall)
886 • On Linux, mention the LSM label (if available) whenever we print
887 debug information about a peer (fd.o #68212, Philip Withnall)
891 • Harden dbus-daemon against malicious or incorrect ActivationFailure
892 messages by rejecting them if they do not come from a privileged
893 process, or if systemd activation is not enabled
894 (fd.o #98157, Simon McVittie)
896 • Avoid undefined behaviour when setting reply serial number without going
897 via union DBusBasicValue (fd.o #98035, Marc Mutz)
899 • Fix CMake build for Unix platforms that do not have -lrt, such as Android,
900 or that do need -lsocket, such as QNX (fd.o #94096, Ralf Habacker)
902 • autogen.sh: fail cleanly if autoconf fails (Simon McVittie)
904 D-Bus 1.11.4 (2016-08-15)
907 The “copper pickaxe” release.
911 • Building from git (but not from tarballs) now requires
912 macros from the GNU Autoconf Archive, for example the autoconf-archive
913 package in Debian or Fedora derivatives.
915 Build-time configuration:
917 • The option to enable coverage instrumentation has changed from
918 --enable-compiler-coverage to --enable-code-coverage.
922 • D-Bus Specification version 0.28
923 · Clarify some details of serialization (fd.o #93382, Philip Withnall)
925 • Increase listen() backlog of AF_UNIX sockets to the maximum possible,
926 minimizing failed connections under heavy load
927 (fd.o #95264, Lennart Poettering)
929 • Add a new dbus-launch --exit-with-x11 option (fd.o #39197, Simon McVittie)
931 • Use the same regression tests for subprocess starting on Unix and Windows
932 (fd.o #95191, Ralf Habacker)
934 • Print timestamps and thread IDs in verbose messages
935 (fd.o #95191, Ralf Habacker)
937 • On Unix, unify the various places that reopen stdin, stdout and/or stderr
938 pointing to /dev/null (fd.o #97008, Simon McVittie)
940 • Use AX_CODE_COVERAGE instead of our own COMPILER_COVERAGE
941 (fd.o #88922, Thomas Zimmermann)
945 • On Windows, fix a memory leak in replacing the installation prefix
946 (fd.o #95191, Ralf Habacker)
948 • On Linux, when dbus-daemon is run with reduced susceptibility to the
949 OOM killer (typically via systemd), do not let child processes inherit
950 that setting (fd.o #32851; Kimmo Hämäläinen, WaLyong Cho)
952 • On Unix, make dbus-launch and dbus-daemon --fork work as intended
953 even if a parent process incorrectly starts them with stdin, stdout
954 and/or stderr closed (fd.o #97008, Simon McVittie)
956 • Output valid shell syntax in ~/.dbus/session-bus/ if the bus address
957 contains a semicolon (fd.o #94746, Thiago Macieira)
959 • Fix memory leaks and thread safety in subprocess starting on Windows
960 (fd.o #95191, Ralf Habacker)
962 • Stop test-dbus-daemon incorrectly failing on platforms that cannot
963 discover the process ID of clients (fd.o #96653, Руслан Ижбулатов)
965 • In tests that exercise correct handling of crashing D-Bus services,
966 suppress Windows crash handler (fd.o #95155; Yiyang Fei, Ralf Habacker)
968 • Explicitly check for stdint.h (Ioan-Adrian Ratiu)
970 • In tests, add an invalid DBusAuthState to avoid undefined behaviour
971 in some test cases (fd.o #93909, Nick Lewycky)
973 • Add assertions to reassure a static analysis tool
974 (fd.o #93210, Deepika Aggarwal)
976 • Be explicit about enum comparison when loading XML
977 (fd.o #93205, Deepika Aggarwal)
979 • update-activation-environment: produce better diagnostics on error
980 (fd.o #96653, Simon McVittie)
982 • Avoid various compiler warnings with gcc 6
983 (fd.o #97282; Thomas Zimmermann, Simon McVittie)
985 • On Unix when configured to use the system log, report as "dbus-daemon",
986 not as "dbus" (fd.o #97009, Simon McVittie)
988 • During unit tests, reduce the amount we write to the system log
989 (fd.o #97009, Simon McVittie)
991 D-Bus 1.11.2 (2016-03-07)
994 The “pneumatic drill vs. Iron Maiden” release.
998 • Enable "large file support" on systems where it exists: dbus-daemon
999 is not expected to open large files, but it might need to stat files
1000 that happen to have large inode numbers (fd.o #93545, Hongxu Jia)
1002 • Eliminate padding inside DBusMessageIter on 64-bit platforms,
1003 which might result in a pedantic C compiler not copying the entire contents
1004 of a DBusMessageIter; statically assert that this is not an ABI change
1005 in practice (fd.o #94136, Simon McVittie)
1007 • Document dbus-test-tool echo --sleep-ms=N instead of incorrect --sleep=N
1008 (fd.o #94244, Dmitri Iouchtchenko)
1010 • Correctly report test failures in C tests from run-test.sh
1011 (fd.o #93379; amit tewari, Simon McVittie)
1013 • When tests are enabled, run all the marshal-validate tests, not just
1014 the even-numbered ones (fd.o #93908, Nick Lewycky)
1016 • Correct the expected error from one marshal-validate test, which was
1017 previously not run due to the above bug (fd.o #93908, Simon McVittie)
1019 • Fix compilation under CMake when embedded tests are disabled
1020 (fd.o #94094, eric.hyer)
1024 • Fix all -Wpointer-sign (signed/unsigned mismatch) warnings, and enable the
1025 warning (fd.o #93069; Ralf Habacker, Simon McVittie)
1027 • When building with CMake, use the same gcc/clang warnings as under Autotools,
1028 or MSVC warnings that are broadly similar (fd.o #93069, Ralf Habacker)
1030 • test/name-test: make C tests produce TAP output and run them directly, not
1031 via run-test.sh (fd.o #92899, Simon McVittie)
1033 • Under CMake when cross-compiling for Windows on Unix, run the tests
1034 under Wine even if binfmt_misc support is not available
1035 (fd.o #88966, Ralf Habacker)
1037 • The DBUS_USE_TEST_BINARY environment variable is no longer used by builds with
1038 embedded tests; DBUS_TEST_DBUS_LAUNCH replaces it (fd.o #92899, Simon McVittie)
1040 • Factor out some functions that will be needed in future for a Windows
1041 implementation of dbus-run-session (fd.o #92899, Ralf Habacker)
1043 D-Bus 1.11.0 (2015-12-02)
1046 The “peppermint deer” release.
1050 • On non-Windows platforms, dbus now requires an <inttypes.h> that defines
1051 C99 constants such as PRId64 and PRIu64.
1055 • D-Bus Specification version 0.27
1056 · Specify that services should not reply if NO_REPLY_EXPECTED was used
1057 (fd.o #75749, Lars Uebernickel)
1059 • Add a script to do continuous-integration builds, and metadata to run it
1060 on travis-ci.org. To use this, clone the dbus git repository on GitHub
1061 and set it up with travis-ci.org; the only special setting needed is
1062 "only build branches with a .travis.yml". (fd.o #93194, Simon McVittie)
1064 • If dbus-daemon is run with --systemd-activation, do not require
1065 org.freedesktop.systemd1.service to exist (fd.o #93194, Simon McVittie)
1069 • Re-order dbus-daemon startup so that on SELinux systems, the thread
1070 that reads AVC notifications retains the ability to write to the
1071 audit log (fd.o #92832, Laurent Bigonville)
1073 • Print 64-bit integers on non-GNU Unix platforms (fd.o #92043, Natanael Copa)
1075 • When using the Monitoring interface, match messages' destinations
1076 (fd.o #92074, Simon McVittie)
1078 • On Linux with systemd, stop installing a reference to the obsolete
1079 dbus.target, and enable dbus.socket statically (fd.o #78412, #92402;
1082 • On Windows, when including configuration files with <include> or
1083 <includedir>, apply the same relocation as for the Exec paths
1084 in .service files (fd.o #92028, Simon McVittie)
1086 • Add support for backtraces on Windows (fd.o #92721, Ralf Habacker)
1088 • Fix many -Wpointer-sign warnings (fd.o #93069, Ralf Habacker)
1090 D-Bus 1.10.6 (2015-12-01)
1093 The “marzipan beetles” release.
1097 • On Unix when running tests as root, don't assert that root and
1098 the dbus-daemon user can still call UpdateActivationEnvironment;
1099 assert that those privileged users can call BecomeMonitor instead
1100 (fd.o #93036, Simon McVittie)
1102 • On Windows, fix a memory leak in the autolaunch transport (fd.o #92899,
1105 • On Windows Autotools builds, don't run tests that rely on
1106 dbus-run-session and other Unix-specifics (fd.o #92899, Simon McVittie)
1108 D-Bus 1.10.4 (2015-11-17)
1111 The “Frostburn Canyon” release.
1115 • GetConnectionCredentials, GetConnectionUnixUser and
1116 GetConnectionUnixProcessID with argument "org.freedesktop.DBus"
1117 will now return details of the dbus-daemon itself. This is required
1118 to be able to call SetEnvironment on systemd.
1119 (fd.o #92857, Jan Alexander Steffens)
1123 • Make UpdateActivationEnvironment always fail with AccessDenied on the
1124 system bus. Previously, it was possible to configure it so root could
1125 call it, but the environment variables were not actually used,
1126 because the launch helper would discard them.
1127 (fd.o #92857, Jan Alexander Steffens)
1129 • On Unix with --systemd-activation on a user bus, make
1130 UpdateActivationEnvironment pass on its arguments to systemd's
1131 SetEnvironment method, solving inconsistency between the environments
1132 used for traditional activation and systemd user-service activation.
1133 (fd.o #92857, Jan Alexander Steffens)
1135 • On Windows, don't crash if <syslog/> or --syslog is used
1136 (fd.o #92538, Ralf Habacker)
1138 • On Windows, fix a memory leak when setting a DBusError from a Windows
1139 error (fd.o #92721, Ralf Habacker)
1141 • On Windows, don't go into infinite recursion if we abort the process
1142 with backtraces enabled (fd.o #92721, Ralf Habacker)
1144 • Fix various failing tests, variously on Windows and cross-platform:
1145 · don't test system.conf features (users, groups) that only make sense
1146 on the system bus, which is not supported on Windows
1147 · don't call _dbus_warn() when we skip a test, since it is fatal
1148 · fix computation of expected <standard_session_servicedirs/>
1149 · when running TAP tests, translate newlines to Unix format, fixing
1150 cross-compiled tests under Wine on Linux
1151 · don't stress-test refcounting under Wine, where it's really slow
1152 · stop assuming that a message looped-back to the test will be received
1154 · skip some system bus tests on Windows since they make no sense there
1155 (fd.o #92538, fd.o #92721; Ralf Habacker, Simon McVittie)
1157 D-Bus 1.10.2 (2015-10-26)
1160 The “worst pies in London” release.
1164 • Correct error handling for activation: if there are multiple attempts
1165 to activate the same service and it fails immediately, the first attempt
1166 would get the correct reply, but the rest would time out. We now send
1167 the same error reply to each attempt. (fd.o #92200, Simon McVittie)
1169 • If BecomeMonitor is called with a syntactically invalid match rule,
1170 don't crash with an assertion failure, fixing a regression in 1.9.10.
1171 This was not exploitable as a denial of service, because the check
1172 for a privileged user is done first. (fd.o #92298, Simon McVittie)
1174 • On Linux with --enable-user-session, add the bus address to the
1175 environment of systemd services for better backwards compatibility
1176 (fd.o #92612, Jan Alexander Steffens)
1178 • On Windows, fix the logic for replacing the installation prefix
1179 in service files' Exec lines (fd.o #83539; Milan Crha, Simon McVittie)
1181 • On Windows, if installed in the conventional layout with ${prefix}/etc
1182 and ${prefix}/share, use relative paths between bus configuration files
1183 to allow the tree to be relocated (fd.o #92028, Simon McVittie)
1185 • Make more of the regression tests pass in Windows builds (fd.o #92538,
1188 D-Bus 1.10.0 (2015-08-25)
1193 This is a new stable branch, recommended for use in OS distributions.
1197 • distribute test/tap-test.sh.in, even if the tarball was built without
1198 tests enabled (fd.o #91684, Simon McVittie)
1199 • work around a fd leak in libcap-ng < 0.7.7 (fd.o #91684, Simon McVittie)
1201 Summary of major changes since 1.8.0:
1203 • The basic setup for the well-known system and session buses is
1204 now done in read-only files in ${datadir} (normally /usr/share).
1205 See the NEWS entry for 1.9.18 for details.
1207 • AppArmor integration has been merged, with features similar to the
1208 pre-existing SELinux integration. It is mostly compatible with the
1209 patches previously shipped by Ubuntu, with one significant change:
1210 Ubuntu's GetConnectionAppArmorSecurityContext method has been superseded
1211 by GetConnectionCredentials and was not included.
1213 • The --enable-user-session configure option can be enabled
1214 by OS integrators intending to use systemd to provide a session bus
1215 per user (in effect, treating all concurrent graphical and non-graphical
1216 login sessions as one large session).
1218 • The new listenable address mode "unix:runtime=yes" listens on
1219 $XDG_RUNTIME_DIR/bus, the same AF_UNIX socket used by the systemd
1220 user session. libdbus and "dbus-launch --autolaunch" will connect to
1221 this address by default. GLib ≥ 2.45.3 and sd-bus ≥ 209 have a
1224 • All executables are now dynamically linked to libdbus-1.
1225 Previously, some executables, most notably dbus-daemon, were statically
1226 linked to a specially-compiled variant of libdbus. This results in
1227 various private functions in the _dbus namespace being exposed by the
1228 shared library. These are not API, and must not be used outside
1229 the dbus source tree.
1231 • On platforms with ELF symbol versioning, all public symbols
1232 are versioned LIBDBUS_1_3.
1236 • org.freedesktop.DBus.GetConnectionCredentials returns
1237 LinuxSecurityLabel where supported
1238 • org.freedesktop.DBus.Monitoring interface (privileged)
1239 · BecomeMonitor method supersedes match rules with eavesdrop=true,
1240 which are now deprecated
1241 • org.freedesktop.DBus.Stats interface (semi-privileged)
1242 · now enabled by default
1243 · new GetAllMatchRules method
1244 • org.freedesktop.DBus.Verbose interface (not normally compiled)
1245 · toggles the effect of DBUS_VERBOSE
1250 • dbus-update-activation-environment
1252 New optional dependencies:
1254 • The systemd: pseudo-transport requires libsystemd or libsd-daemon
1255 • Complete documentation requires Ducktype and yelp-tools
1256 • Full test coverage requires GLib 2.36 and PyGI
1257 • AppArmor integration requires libapparmor and optionally libaudit
1259 Dependencies removed:
1263 D-Bus 1.9.20 (2015-08-06)
1266 The “Remember Tomorrow” release.
1268 This is a release-candidate for D-Bus 1.10.0. OS distribution vendors
1273 • Don't second-guess what the ABI of poll() is, allowing it to be used
1274 on Integrity RTOS and other unusual platforms (fd.o #90314;
1275 Rolland Dudemaine, Simon McVittie)
1277 • Don't duplicate audit subsystem integration if AppArmor and SELinux are
1278 both enabled (fd.o #89225, Simon McVittie)
1280 • Log audit events for AppArmor/SELinux policy violations whenever
1281 we have CAP_AUDIT_WRITE, even if not the system bus
1282 (fd.o #83856, Laurent Bigonville)
1284 D-Bus 1.9.18 (2015-07-21)
1287 The “Pirate Elite” release.
1289 Configuration changes:
1291 • The basic setup for the well-known system and session buses is now done
1292 in read-only files in ${datadir}, moving a step closer to systems
1293 that can operate with an empty /etc directory. In increasing order
1296 · ${datadir}/dbus-1/s*.conf now perform the basic setup such as setting
1297 the default message policies.
1298 · ${sysconfdir}/dbus-1/s*.conf are now optional. By default
1299 dbus still installs a trivial version of each, for documentation
1300 purposes; putting configuration directives in these files is deprecated.
1301 · ${datadir}/dbus-1/s*.d/ are now available for third-party software
1302 to install "drop-in" configuration snippets (any packages
1303 using those directories should explicitly depend on at least this
1305 · ${sysconfdir}/dbus-1/s*.d/ are also still available for sysadmins
1306 or third-party software to install "drop-in" configuration snippets
1307 · ${sysconfdir}/dbus-1/s*-local.conf are still available for sysadmins'
1310 ${datadir} is normally /usr/share, ${sysconfdir} is normally /etc,
1311 and "s*" refers to either system or session as appropriate.
1313 (fd.o #89280, Dimitri John Ledkov)
1317 • Fix a memory leak when GetConnectionCredentials() succeeds
1318 (fd.o #91008, Jacek Bukarewicz)
1320 • Ensure that dbus-monitor does not reply to messages intended for others,
1321 resulting in its own disconnection (fd.o #90952, Simon McVittie)
1323 D-Bus 1.9.16 (2015-05-14)
1326 The “titanium barns” release.
1330 • Automake 1.13 is now required when compiling from git or modifying
1335 • On Unix platforms, change the default configuration for the session bus
1336 to only allow EXTERNAL authentication (secure kernel-mediated
1337 credentials-passing), as was already done for the system bus.
1339 This avoids falling back to DBUS_COOKIE_SHA1, which relies on strongly
1340 unpredictable pseudo-random numbers.
1342 If you are using D-Bus over the (unencrypted!) tcp: or nonce-tcp: transport,
1343 in conjunction with DBUS_COOKIE_SHA1 and a shared home directory using
1344 NFS or similar, you will need to reconfigure the session bus to accept
1345 DBUS_COOKIE_SHA1 by commenting out the <auth> element. This configuration
1348 (fd.o #90414, Simon McVittie)
1350 • When asked for random numbers for DBUS_COOKIE_SHA1, the nonce-tcp:
1351 transport, UUIDs or any other reason, fail if we cannot obtain entropy
1352 (from /dev/urandom or CryptGenRandom()) or an out-of-memory condition
1353 occurs, instead of silently falling back to low-entropy pseudorandom
1354 numbers from rand(). (fd.o #90414; Simon McVittie, Ralf Habacker)
1358 • Add dbus_message_iter_get_element_count()
1359 (fd.o #30350; Christian Dywan, Simon McVittie)
1361 • Introduce new internal DBusSocket and DBusPollable types so we can
1362 stop treating the Windows SOCKET type as if it was int. DBusSocket
1363 is specifically a socket, cross-platform. DBusPollable is whatever
1364 _dbus_poll() can act on, i.e. a fd on Unix or a SOCKET on Windows.
1365 (fd.o #89444; Ralf Habacker, Simon McVittie)
1367 • All regression tests now output TAP <https://testanything.org/>
1368 (fd.o #89846, Simon McVittie)
1370 • Internal APIs consistently use signed values for timestamps
1371 (fd.o #18494, Peter McCurdy)
1373 • Improve diagnostics when UpdateActivationEnvironment calls are rejected
1374 (fd.o #88812, Simon McVittie)
1376 • Clean up a lot of compiler warnings
1377 (fd.o #17289, fd.o #89284; Ralf Habacker, Simon McVittie)
1381 • Add locking to DBusCounter's reference count and notify function
1382 (fd.o #89297, Adrian Szyndela)
1384 • Ensure that DBusTransport's reference count is protected by the
1385 corresponding DBusConnection's lock (fd.o #90312, Adrian Szyndela)
1387 • Correctly release DBusServer mutex before early-return if we run out
1388 of memory while copying authentication mechanisms (fd.o #90021,
1391 • Make dbus-test-tool and dbus-update-activation-environment portable
1392 to Windows (fd.o #90089, Ralf Habacker)
1394 • Correctly initialize all fields of DBusTypeReader (fd.o #90021;
1395 Ralf Habacker, Simon McVittie)
1397 • Fix some missing \n in verbose (debug log) messages (fd.o #90004,
1400 • Clean up some memory and fd leaks in test code and tools
1401 (fd.o #90021, Ralf Habacker)
1403 • Fix a NULL dereference if the dbus-daemon cannot read a configuration
1404 directory for a reason that is not ENOENT (fd.o #90021, Ralf Habacker)
1406 • CMake generates a versioned shared library even if the revision is 0,
1407 as it usually is on the development branch. (fd.o #89450, Ralf Habacker)
1409 D-Bus 1.9.14 (2015-03-02)
1412 The “don't stand in the poison cloud” release.
1416 • dbus-daemon and dbus-daemon-launch-helper now require libdbus. They
1417 were previously linked to a static version of libdbus.
1419 • The tests no longer require dbus-glib in order to exercise the libdbus
1420 shared library; they are always linked to libdbus now.
1422 Build-time configuration:
1424 • The new --enable-user-session option, off by default, can be enabled
1425 by OS integrators intending to use systemd to provide a session bus
1426 per user (in effect, treating all concurrent graphical and non-graphical
1427 login sessions as one large session)
1431 • All executables are now linked dynamically to libdbus.
1432 (fd.o #83115; Bertrand SIMONNET, Simon McVittie, Ralf Habacker)
1434 • On platforms that support them (GNU libc and possibly others),
1435 libdbus now has versioned symbols for its public API.
1436 All public symbols (visible in the header files) are currently
1437 versioned as LIBDBUS_1_3; private symbols starting with _dbus or
1438 dbus_internal have a version that changes with each release, and
1439 must not be used by applications. (also fd.o #83115)
1441 • New listenable address mode "unix:runtime=yes" which listens on
1442 a real filesystem (non-abstract) socket $XDG_RUNTIME_DIR/bus
1443 (fd.o #61303; Colin Walters, Alexander Larsson, Simon McVittie)
1445 • Add optional systemd units for a per-user bus listening on
1446 $XDG_RUNTIME_DIR/bus (fd.o #61301; Simon McVittie, Colin Walters)
1448 • On Unix platforms, both libdbus and "dbus-launch --autolaunch"
1449 default to connecting to $XDG_RUNTIME_DIR/bus if it is a socket
1452 • New dbus-update-activation-environment tool uploads environment
1453 variables to "dbus-daemon --session" and optionally "systemd --user",
1454 primarily as a way to keep the per-user bus compatible with
1455 distributions' existing X11 login scripts (also fd.o #61301)
1457 • <includedir/> elements in dbus-daemon configuration are now silently
1458 ignored if the directory does not exist. (fd.o #89280, Dimitri John Ledkov)
1460 • Add microsecond-resolution timestamps to the default output of
1461 dbus-monitor and dbus-send (fd.o #88896; Ralf Habacker, Simon McVittie)
1465 • Fix a race condition in the 'monitor' test introduced in 1.9.10
1466 (fd.o #89222, Simon McVittie)
1468 D-Bus 1.9.12 (2015-02-19)
1471 The “monster lasagna” release.
1475 • Ducktype and yelp-tools are now required to build complete documentation
1476 (they are optional for normal builds).
1480 • D-Bus Specification version 0.26
1481 · GetConnectionCredentials can return LinuxSecurityLabel or WindowsSID
1482 · document the BecomeMonitor method
1484 • On Linux, add LinuxSecurityLabel to GetConnectionCredentials
1485 (fd.o #89041; Tyler Hicks, Simon McVittie)
1487 • On Linux, add support for AppArmor mediation of message sending and
1488 receiving and name ownership (paralleling existing SELinux mediation
1489 support), and eavesdropping (a new check, currently AppArmor-specific)
1490 (fd.o #75113; John Johansen, Tyler Hicks, Simon McVittie)
1492 • In dbus-send and dbus-monitor, pretty-print \0-terminated bytestrings
1493 that have printable ASCII contents; we previously only did this for
1494 unterminated bytestrings (fd.o #89109, Simon McVittie)
1496 • Add a guide to designing good D-Bus APIs (fd.o #88994, Philip Withnall)
1498 • On Windows, add WindowsSID to GetConnectionCredentials
1499 (fd.o #54445, Ralf Habacker)
1501 • Improve clarity of dbus-monitor --profile output and add more columns
1502 (fd.o #89165, Ralf Habacker)
1504 • Add a man page for dbus-test-tool, and build it under CMake as well
1505 as Autotools (fd.o#89086, Simon McVittie)
1507 • If dbus-daemon was compiled with --enable-verbose, add a D-Bus API
1508 to control it at runtime, overriding the DBUS_VERBOSE environment variable
1509 (fd.o #88896, Ralf Habacker)
1513 • Reduce the number of file descriptors used in the fd-passing test,
1514 avoiding failure under the default Linux fd limit, and automatically
1515 skip it if the rlimit is too small (fd.o #88998, Simon McVittie)
1517 D-Bus 1.9.10 (2015-02-09)
1520 The “sad cyborgs” release.
1522 Security fixes merged from 1.8.16:
1524 • Do not allow non-uid-0 processes to send forged ActivationFailure
1525 messages. On Linux systems with systemd activation, this would
1526 allow a local denial of service: unprivileged processes could
1527 flood the bus with these forged messages, winning the race with
1528 the actual service activation and causing an error reply
1529 to be sent back when service auto-activation was requested.
1530 This does not prevent the real service from being started,
1531 so the attack only works while the real service is not running.
1532 (CVE-2015-0245, fd.o #88811; Simon McVittie)
1536 • The new Monitoring interface in the dbus-daemon lets dbus-monitor and
1537 similar tools receive messages without altering the security properties
1538 of the system bus, by calling the new BecomeMonitor method on a
1539 private connection. This bypasses the normal <allow> and <deny> rules
1540 entirely, so to preserve normal message-privacy assumptions, only root
1541 is allowed to do this on the system bus. Restricted environments,
1542 such as Linux with LSMs, should lock down access to the Monitoring
1543 interface. (fd.o #46787, Simon McVittie)
1545 • dbus-monitor uses BecomeMonitor to capture more traffic, if the
1546 dbus-daemon supports it and access permissions allow it.
1547 It still supports the previous approach ("eavesdropping" match rules)
1548 for compatibility with older bus daemons. (fd.o #46787, Simon)
1550 • dbus-monitor can now log the message stream as binary data for later
1551 analysis, with either no extra framing beyond the normal D-Bus headers,
1552 or libpcap-compatible framing treating each D-Bus message
1553 as a captured packet. (fd.o #46787, Simon)
1557 • Fix some CMake build regressions (fd.o #88964, Ralf Habacker)
1559 • On Unix, forcibly terminate regression tests after 60 seconds to
1560 prevent them from blocking continuous integration frameworks
1561 (fd.o #46787, Simon)
1563 D-Bus 1.9.8 (2015-02-03)
1566 The “all the types of precipitation” release.
1570 • full test coverage now requires GLib 2.36
1571 • full test coverage now requires PyGI (PyGObject 3,
1572 "import gi.repository.GObject") instead of the
1573 obsolete PyGObject 2 ("import gobject")
1577 • add GLib-style "installed tests" (fd.o #88810, Simon McVittie)
1579 • better regression test coverage, including systemd activation
1580 (fd.o #57952, #88810; Simon McVittie)
1584 • fatal errors correctly make the dbus-daemon exit even if <syslog/> is
1585 turned off (fd.o #88808, Simon McVittie)
1587 • TCP sockets on Windows no longer fail to listen approximately 1 time
1588 in 256, caused by a logic error that should have always made it fail but
1589 was mitigated by incorrect endianness for the port number
1590 (fd.o #87999, Ralf Habacker)
1592 • fix some Windows build failures (fd.o #88009, #88010; Ralf Habacker)
1594 • on Windows, allow up to 8K connections to the dbus-daemon instead of the
1595 previous 64, completing a previous fix which only worked under
1596 Autotools (fd.o #71297, Ralf Habacker)
1598 • on Windows, if the IP family is unspecified only use IPv4,
1599 to mitigate IPv6 not working correctly (fd.o #87999, Ralf Habacker)
1601 • fix some unlikely memory leaks on OOM (fd.o #88087, Simon McVittie)
1603 • lcov code coverage analysis works again (fd.o #88808, Simon McVittie)
1605 • fix an unused function error with --disable-embedded-tests (fd.o #87837,
1608 D-Bus 1.9.6 (2015-01-05)
1611 The “I do have a bread knife” release.
1615 • Do not allow calls to UpdateActivationEnvironment from uids other than
1616 the uid of the dbus-daemon. If a system service installs unsafe
1617 security policy rules that allow arbitrary method calls
1618 (such as CVE-2014-8148) then this prevents memory consumption and
1619 possible privilege escalation via UpdateActivationEnvironment.
1621 We believe that in practice, privilege escalation here is avoided
1622 by dbus-daemon-launch-helper sanitizing its environment; but
1623 it seems better to be safe.
1625 • Do not allow calls to UpdateActivationEnvironment or the Stats interface
1626 on object paths other than /org/freedesktop/DBus. Some system services
1627 install unsafe security policy rules that allow arbitrary method calls
1628 to any destination, method and interface with a specified object path;
1629 while less bad than allowing arbitrary method calls, these security
1630 policies are still harmful, since dbus-daemon normally offers the
1631 same API on all object paths and other system services might behave
1636 • Add missing initialization so GetExtendedTcpTable doesn't crash on
1637 Windows Vista SP0 (fd.o #77008, Илья А. Ткаченко)
1639 D-Bus 1.9.4 (2014-11-24)
1642 The “extra-sturdy caramel” release.
1646 • Partially revert the CVE-2014-3639 patch by increasing the default
1647 authentication timeout on the system bus from 5 seconds back to 30
1648 seconds, since this has been reported to cause boot regressions for
1649 some users, mostly with parallel boot (systemd) on slower hardware.
1651 On fast systems where local users are considered particularly hostile,
1652 administrators can return to the 5 second timeout (or any other value
1653 in milliseconds) by saving this as /etc/dbus-1/system-local.conf:
1656 <limit name="auth_timeout">5000</limit>
1659 (fd.o #86431, Simon McVittie)
1661 • Add a message in syslog/the Journal when the auth_timeout is exceeded
1662 (fd.o #86431, Simon McVittie)
1664 • Send back an AccessDenied error if the addressed recipient is not allowed
1665 to receive a message (and in builds with assertions enabled, don't
1666 assert under the same conditions). (fd.o #86194, Jacek Bukarewicz)
1668 D-Bus 1.9.2 (2014-11-10)
1671 The “structurally unsound flapjack” release.
1675 • Increase dbus-daemon's RLIMIT_NOFILE rlimit to 65536
1676 so that CVE-2014-3636 part A cannot exhaust the system bus'
1677 file descriptors, completing the incomplete fix in 1.8.8.
1678 (CVE-2014-7824, fd.o #85105; Simon McVittie, Alban Crequy)
1682 • D-Bus Specification version 0.25
1683 · new value 'const' for EmitsChangedSignal annotation
1684 (fd.o #72958, Lennart Poettering)
1685 · new ALLOW_INTERACTIVE_AUTHORIZATION flag, for PolicyKit and similar
1686 (fd.o #83449; Lennart Poettering, Simon McVittie)
1687 · annotate table of types with reserved/basic/container, and for
1688 basic types, fixed/string-like
1689 · clarify arbitrary limits by quoting them in mebibytes
1691 • New API: add accessors for the ALLOW_INTERACTIVE_AUTHORIZATION flag
1692 (fd.o #83449, Simon McVittie)
1694 • Add dbus-test-tool, a D-Bus swiss army knife with multiple subcommands,
1695 useful for debugging and performance testing:
1696 · dbus-test-tool spam: send repeated messages
1697 · dbus-test-tool echo: send an empty reply for all method calls
1698 · dbus-test-tool black-hole: do not reply to method calls
1699 (fd.o #34140; Alban Crequy, Simon McVittie, Will Thompson)
1701 • Add support for process ID in credentials-passing on NetBSD
1702 (fd.o #69702, Patrick Welche)
1704 • Add an example script to find potentially undesired match rules
1705 (fd.o #84598, Alban Crequy)
1707 • Document the central assumption that makes our use of credentials-passing
1708 secure (fd.o #83499, Simon McVittie)
1710 • Replace the dbus-glib section of the tutorial with a GDBus recommendation,
1711 and add some links to GDBus and QtDBus documentation (fd.o #25140,
1716 • Use a less confusing NoReply message when disconnected with a reply pending
1717 (fd.o #76112, Simon McVittie)
1719 • Make the .pc file relocatable by letting pkg-config do all variable
1720 expansion itself (fd.o #75858, Руслан Ижбулатов)
1722 • Fix a build failure on platforms with kqueue, which regressed in 1.9.0
1723 (fd.o #85563, Patrick Welche)
1725 • Consistently save errno after socket calls (fd.o #83625, Simon McVittie)
1727 • In dbus-spawn, when the grandchild process exits due to a failed exec(),
1728 do not lose the exec() errno (fd.o #24821, Simon McVittie)
1730 • Do not fail the tests if a parent process has leaked non-close-on-exec
1731 file descriptors to us (fd.o #73689, fd.o #83899; Simon McVittie)
1733 • Do not fail the tests on Unix platforms with incomplete
1734 credentials-passing support, but do fail if we can't pass credentials
1735 on a platform where it is known to work: Linux, FreeBSD, OpenBSD, NetBSD
1736 (fd.o #69702, Simon McVittie)
1738 • Detect accept4, dirfd, inotify_init1, pipe2, and Unix fd passing
1739 when building with cmake, and expand test coverage there
1740 (fd.o #73689; Ralf Habacker, Simon McVittie)
1742 D-Bus 1.9.0 (2014-10-01)
1745 The “tiered cheeses” release.
1749 • Support for the systemd: (LISTEN_FDS) pseudo-transport on Linux now
1750 requires either the libsystemd or libsd-daemon shared library, dropping the
1751 embedded convenience copy of sd-daemon (fd.o #71818, Simon)
1753 Build-time configuration changes:
1755 • The Stats interface is now enabled by default, and locked-down to
1756 root-only on the system bus. Configure with --disable-stats
1757 to disable it altogether on memory- or disk-constrained systems,
1758 or see ${docdir}/examples/ to open it up to non-root users on the
1759 system bus or restrict access on the session bus.
1760 (fd.o #80759; Simon McVittie, Alban Crequy)
1762 • The CMake build system now builds the same shared library name as Autotools
1763 on at least Linux and Windows:
1764 - on Linux (and perhaps other Unix platforms), it previously built
1765 libdbus-1.so, but now builds libdbus-1.so.3.* with development
1766 symlink libdbus-1.so and SONAME/symlink libdbus-1.so.3
1767 - on Windows, it previously built either libdbus-1.dll (release) or
1768 libdbus-1d.dll (debug), but now builds libdbus-1-3.dll, copied to
1769 libdbus-1.dll for compatibility with older applications.
1770 (fd.o #74117, Ralf Habacker)
1774 • D-Bus Specification version 0.24
1775 · document how to quote match rules (fd.o #24307, Simon McVittie)
1776 · explicitly say that most message types never expect a reply
1777 regardles of whether they have NO_REPLY_EXPECTED
1778 (fd.o #75749, Simon McVittie)
1780 • on Unix platforms, disable Nagle's algorithm on TCP connections to improve
1781 initial latency (fd.o #75544, Matt Hoosier)
1783 • use backtrace() if it is in -lexecinfo instead of libc, as on NetBSD
1784 (fd.o #69702, Patrick Welche)
1786 • in dbus-monitor, print more information about file descriptors
1787 (fd.o #80603, Alban Crequy)
1789 • do not install system bus configuration if built for Windows
1790 (fd.o #83583; Ralf Habacker, Simon McVittie)
1792 • Add GetAllMatchRules to the Stats interface (fd.o #24307, Alban Crequy)
1794 • Add a regression test for file descriptor passing (fd.o #83622,
1799 • fix an incorrect error message if a Unix socket path is too long
1800 (fd.o #73887, Antoine Jacoutot)
1802 • in an MSYS/Cygwin environment, pass Unix-style filenames to xmlto,
1803 fixing documentation generation (fd.o #75860, Руслан Ижбулатов)
1805 • in Unix with X11, avoid giving dbus-launch a misleading argv[0]
1806 in ps(1) (fd.o #69716, Chengwei Yang)
1808 • avoid calling poll() with timeout < -1, which is considered invalid
1809 on FreeBSD and NetBSD (fd.o #78480, Jaap Boender)
1811 • be portable to BSD-derived platforms where O_CLOEXEC is unavailable in libc
1812 (like Mac OS X 10.6), or available in libc but unsupported by the kernel
1813 (fd.o #77032; rmvsxop, OBATA Akio, Patrick Welche)
1815 • Fix include path for test/internal/*.c with cmake (Ralf Habacker)
1817 • Documentation improvements
1818 (fd.o #80795, #84313; Thomas Haller, Sebastian Rasmussen)
1820 • in dbus-monitor, do not leak file descriptors that we have monitored
1821 (fd.o #80603, Alban Crequy)
1823 • Set the close-on-exec flag for the inotify file descriptor, even
1824 if built with CMake or older libc (fd.o #73689, Simon McVittie)
1826 • Remove some LGPL code from the Windows dbus-daemon
1827 (fd.o #57272, Ralf Habacker)
1829 D-Bus 1.8.8 (2014-09-16)
1832 The "smashy smashy egg man" release.
1836 • Do not accept an extra fd in the padding of a cmsg message, which
1837 could lead to a 4-byte heap buffer overrun.
1838 (CVE-2014-3635, fd.o #83622; Simon McVittie)
1840 • Reduce default for maximum Unix file descriptors passed per message
1841 from 1024 to 16, preventing a uid with the default maximum number of
1842 connections from exhausting the system bus' file descriptors under
1843 Linux's default rlimit. Distributors or system administrators with a
1844 more restrictive fd limit may wish to reduce these limits further.
1846 Additionally, on Linux this prevents a second denial of service
1847 in which the dbus-daemon can be made to exceed the maximum number
1848 of fds per sendmsg() and disconnect the process that would have
1850 (CVE-2014-3636, fd.o #82820; Alban Crequy)
1852 • Disconnect connections that still have a fd pending unmarshalling after
1853 a new configurable limit, pending_fd_timeout (defaulting to 150 seconds),
1854 removing the possibility of creating an abusive connection that cannot be
1855 disconnected by setting up a circular reference to a connection's
1857 (CVE-2014-3637, fd.o #80559; Alban Crequy)
1859 • Reduce default for maximum pending replies per connection from 8192 to 128,
1860 mitigating an algorithmic complexity denial-of-service attack
1861 (CVE-2014-3638, fd.o #81053; Alban Crequy)
1863 • Reduce default for authentication timeout on the system bus from
1864 30 seconds to 5 seconds, avoiding denial of service by using up
1865 all unauthenticated connection slots; and when all unauthenticated
1866 connection slots are used up, make new connection attempts block
1867 instead of disconnecting them.
1868 (CVE-2014-3639, fd.o #80919; Alban Crequy)
1872 • Check for libsystemd from systemd >= 209, falling back to
1873 the older separate libraries if not found (Umut Tezduyar Lindskog,
1876 • On Linux, use prctl() to disable core dumps from a test executable
1877 that deliberately raises SIGSEGV to test dbus-daemon's handling
1878 of that condition (fd.o #83772, Simon McVittie)
1880 • Fix compilation with --enable-stats (fd.o #81043, Gentoo #507232;
1883 • Improve documentation for running tests on Windows (fd.o #41252,
1886 D-Bus 1.8.6 (2014-06-02)
1891 • On Linux ≥ 2.6.37-rc4, if sendmsg() fails with ETOOMANYREFS, silently drop
1892 the message. This prevents an attack in which a malicious client can
1893 make dbus-daemon disconnect a system service, which is a local
1895 (fd.o #80163, CVE-2014-3532; Alban Crequy)
1897 • Track remaining Unix file descriptors correctly when more than one
1898 message in quick succession contains fds. This prevents another attack
1899 in which a malicious client can make dbus-daemon disconnect a system
1901 (fd.o #79694, fd.o #80469, CVE-2014-3533; Alejandro Martínez Suárez,
1902 Simon McVittie, Alban Crequy)
1906 • When dbus-launch --exit-with-session starts a dbus-daemon but then cannot
1907 attach to a session, kill the dbus-daemon as intended
1908 (fd.o #74698, Роман Донченко)
1910 D-Bus 1.8.4 (2014-06-10)
1915 • Alban Crequy at Collabora Ltd. discovered and fixed a denial-of-service
1916 flaw in dbus-daemon, part of the reference implementation of D-Bus.
1917 Additionally, in highly unusual environments the same flaw could lead to
1918 a side channel between processes that should not be able to communicate.
1919 (CVE-2014-3477, fd.o #78979)
1921 D-Bus 1.8.2 (2014-04-30)
1924 The “nobody wants red” release.
1928 • in the CMake build system, add some hints for Linux users cross-compiling
1929 Windows D-Bus binaries to be able to run tests under Wine
1930 (fd.o #41252, Ralf Habacker)
1932 • add Documentation key to dbus.service (fd.o #77447, Cameron Norman)
1936 • in "dbus-uuidgen --ensure", try to copy systemd's /etc/machine-id
1937 to /var/lib/dbus/machine-id instead of generating an entirely new ID
1938 (fd.o #77941, Simon McVittie)
1940 • if dbus-launch receives an X error very quickly, do not kill
1941 unrelated processes (fd.o #74698, Роман Донченко)
1943 • on Windows, allow up to 8K connections to the dbus-daemon, instead of the
1944 previous 64 (fd.o #71297; Cristian Onet, Ralf Habacker)
1946 • cope with \r\n newlines in regression tests, since on Windows,
1947 dbus-daemon.exe uses text mode (fd.o #75863, Руслан Ижбулатов)
1949 D-Bus 1.8.0 (2014-01-20)
1952 The “Wolverine distrusts my printer” release.
1954 This starts a new stable branch. The 1.6.x branch is now considered to be
1955 outdated, and will only receive fixes for serious bugs such as security
1956 flaws. The 1.4.x and 1.2.x branches no longer have upstream support and
1957 are unlikely to get any more releases, but if distributors still need to
1958 support them, please share security patches via upstream.
1960 Summary of changes since 1.6.x:
1962 • libdbus always behaves as if dbus_threads_init_default() had been called
1963 (thread-safety by default)
1964 • new dbus-run-session tool, replacing certain misuses of dbus-launch
1965 • dbus-monitor can talk to outdated versions of dbus-daemon again
1966 • new org.freedesktop.DBus.GetConnectionCredentials method
1967 • GetConnectionUnixProcessID also works correctly on Windows, returning
1968 the Windows process ID
1969 • GetConnectionWindowsSID returns the correct SID on Windows
1970 • expat is required, libxml2 can no longer be used as a substitute
1971 • the userDB cache is required, and cannot be disabled
1972 • a 64-bit integer type (either int, long, long long or _int64) is required
1973 • better systemd-journald integration on Linux
1974 • fixed long-standing fd and array leaks when failing to parse a message
1975 • fixed referenced-but-never-freed parent nodes (effectively memory leaks)
1976 when using certain object-path allocation patterns, notably in Avahi
1977 • better defaults for Windows support
1978 • better CMake support
1979 • better portability to mingw32, FreeBSD, NetBSD, QNX and Hurd
1980 • the source language for the man pages is now Docbook XML
1982 Enhancements since 1.7.10:
1984 • Enhance the CMake build system to check for GLib and compile/run
1985 a subset of the regression tests (fd.o #41252, #73495; Ralf Habacker)
1989 • don't rely on va_copy(), use DBUS_VA_COPY() wrapper (fd.o #72840,
1992 • fix compilation of systemd journal support on older systemd versions where
1993 sd-journal.h doesn't include syslog.h (fd.o #73455, Ralf Habacker)
1995 • fix compilation on older MSVC versions by including stdlib.h
1996 (fd.o #73455, Ralf Habacker)
1998 • Allow <allow_anonymous/> to appear in an included configuration file
1999 (fd.o #73475, Matt Hoosier)
2001 Test behaviour changes since 1.7.10:
2003 • If the tests crash with an assertion failure, they no longer default to
2004 blocking for a debugger to be attached. Set DBUS_BLOCK_ON_ABORT in the
2005 environment if you want the old behaviour.
2007 • To improve debuggability, the dbus-daemon and dbus-daemon-eavesdrop tests
2008 can be run with an external dbus-daemon by setting
2009 DBUS_TEST_DAEMON_ADDRESS in the environment. Test-cases that require
2010 an unusually-configured dbus-daemon are skipped.
2012 D-Bus 1.7.10 (2014-01-06)
2015 The “weighted companion cube” release.
2017 This is a release candidate for D-Bus 1.8.
2019 D-Bus Specification 0.23:
2021 • don't require messages with no INTERFACE to be dispatched
2022 (fd.o #68597, Simon McVittie)
2024 • document "tcp:bind=..." and "nonce-tcp:bind=..." (fd.o #72301,
2027 • define "listenable" and "connectable" addresses, and discuss
2028 the difference (fd.o #61303, Simon McVittie)
2032 • support printing Unix file descriptors in dbus-send, dbus-monitor
2033 (fd.o #70592, Robert Ancell)
2035 • don't install systemd units if --disable-systemd is given
2036 (fd.o #71818, Chengwei Yang)
2040 • don't leak memory on out-of-memory while listing activatable or
2041 active services (fd.o #71526, Radoslaw Pajak)
2043 • fix undefined behaviour in a regression test (fd.o #69924, DreamNik)
2045 • escape Unix socket addresses correctly (fd.o #46013, Chengwei Yang)
2047 • on SELinux systems, don't assume that SECCLASS_DBUS, DBUS__ACQUIRE_SVC
2048 and DBUS__SEND_MSG are numerically equal to their values in the
2049 reference policy (fd.o #88719, osmond sun)
2051 • define PROCESS_QUERY_LIMITED_INFORMATION if missing from MinGW < 4 headers
2052 (fd.o #71366, Matt Fischer)
2054 • define WIN32_LEAN_AND_MEAN to avoid conflicts between winsock.h and
2055 winsock2.h (fd.o #71405, Matt Fischer)
2057 • do not return failure from _dbus_read_nonce() with no error set,
2058 preventing a potential crash (fd.o #72298, Chengwei Yang)
2060 • on BSD systems, avoid some O(1)-per-process memory and fd leaks in kqueue,
2061 preventing test failures (fd.o #69332, fd.o #72213; Chengwei Yang)
2063 • fix warning spam on Hurd by not trying to set SO_REUSEADDR on Unix sockets,
2064 which doesn't do anything anyway on at least Linux and FreeBSD
2065 (fd.o #69492, Simon McVittie)
2067 • fix use of TCP sockets on FreeBSD and Hurd by tolerating EINVAL from
2068 sendmsg() with SCM_CREDS (retrying with plain send()), and looking
2069 for credentials more correctly (fd.o #69492, Simon McVittie)
2071 • ensure that tests run with a temporary XDG_RUNTIME_DIR to avoid
2072 getting mixed up in XDG/systemd "user sessions" (fd.o #61301,
2075 • refresh cached policy rules for existing connections when bus
2076 configuration changes (fd.o #39463, Chengwei Yang)
2078 D-Bus 1.7.8 (2013-11-01)
2081 The “extreme hills” release.
2085 • If systemd support is enabled, libsystemd-journal is now required.
2089 • When activating a non-systemd service under systemd, annotate its
2090 stdout/stderr with its bus name in the Journal. Known limitation:
2091 because the socket is opened before forking, the process will still be
2092 logged as if it had dbus-daemon's process ID and user ID.
2093 (fd.o #68559, Chengwei Yang)
2095 • Document more configuration elements in dbus-daemon(1)
2096 (fd.o #69125, Chengwei Yang)
2100 • Don't leak string arrays or fds if dbus_message_iter_get_args_valist()
2101 unpacks them and then encounters an error (fd.o #21259, Chengwei Yang)
2103 • If compiled with libaudit, retain CAP_AUDIT_WRITE so we can write
2104 disallowed method calls to the audit log, fixing a regression in 1.7.6
2105 (fd.o #49062, Colin Walters)
2107 • path_namespace='/' in match rules incorrectly matched nothing; it
2108 now matches everything. (fd.o #70799, Simon McVittie)
2110 D-Bus 1.7.6 (2013-10-09)
2113 The “CSI Shrewsbury” release.
2115 Build-time configuration changes:
2117 • Directory change notification via dnotify on Linux is no longer
2118 supported; it hadn't compiled successfully since 2010 in any case.
2119 If you don't have inotify (Linux) or kqueue (*BSD), you will need
2120 to send SIGHUP to the dbus-daemon when its configuration changes.
2121 (fd.o #33001, Chengwei Yang)
2123 • Compiling with --disable-userdb-cache is no longer supported;
2124 it didn't work since at least 2008, and would lead to an extremely
2125 slow dbus-daemon even it worked. (fd.o #15589, #17133, #66947;
2128 • The DBUS_DISABLE_ASSERTS CMake option didn't actually disable most
2129 assertions. It has been renamed to DBUS_DISABLE_ASSERT to be consistent
2130 with the Autotools build system. (fd.o #66142, Chengwei Yang)
2132 • --with-valgrind=auto enables Valgrind instrumentation if and only if
2133 valgrind headers are available. The default is still --with-valgrind=no.
2134 (fd.o #56925, Simon McVittie)
2138 • Platforms with no 64-bit integer type are no longer supported.
2139 (fd.o #65429, Simon McVittie)
2141 • GNU make is now (documented to be) required. (fd.o #48277, Simon McVittie)
2143 • Full test coverage no longer requires dbus-glib, although the tests do not
2144 exercise the shared library (only a static copy) if dbus-glib is missing.
2145 (fd.o #68852, Simon McVittie)
2149 • D-Bus Specification 0.22
2150 · Document GetAdtAuditSessionData() and
2151 GetConnectionSELinuxSecurityContext() (fd.o #54445, Simon)
2152 · Fix example .service file (fd.o #66481, Chengwei Yang)
2153 · Don't claim D-Bus is "low-latency" (lower than what?), just
2154 give factual statements about it supporting async use
2155 (fd.o #65141, Justin Lee)
2156 · Document the contents of .service files, and the fact that
2157 system services' filenames are constrained
2158 (fd.o #66608; Simon McVittie, Chengwei Yang)
2160 • Be thread-safe by default on all platforms, even if
2161 dbus_threads_init_default() has not been called. For compatibility with
2162 older libdbus, library users should continue to call
2163 dbus_threads_init_default(): it is harmless to do so.
2164 (fd.o #54972, Simon McVittie)
2166 • Add GetConnectionCredentials() method (fd.o #54445, Simon)
2168 • New API: dbus_setenv(), a simple wrapper around setenv().
2169 Note that this is not thread-safe. (fd.o #39196, Simon)
2171 • Add dbus-send --peer=ADDRESS (connect to a given peer-to-peer connection,
2172 like --address=ADDRESS in previous versions) and dbus-send --bus=ADDRESS
2173 (connect to a given bus, like dbus-monitor --address=ADDRESS).
2174 dbus-send --address still exists for backwards compatibility,
2175 but is no longer documented. (fd.o #48816, Andrey Mazo)
2178 · "dbus-daemon --nofork" is allowed on Windows again. (fd.o #68852,
2183 • Avoid an infinite busy-loop if a signal interrupts waitpid()
2184 (fd.o #68945, Simon McVittie)
2186 • Clean up memory for parent nodes when objects are unexported
2187 (fd.o #60176, Thomas Fitzsimmons)
2189 • Make dbus_connection_set_route_peer_messages(x, FALSE) behave as
2190 documented. Previously, it assumed its second parameter was TRUE.
2191 (fd.o #69165, Chengwei Yang)
2193 • Escape addresses containing non-ASCII characters correctly
2194 (fd.o #53499, Chengwei Yang)
2196 • Document <servicedir> search order correctly (fd.o #66994, Chengwei Yang)
2198 • Don't crash on "dbus-send --session / x.y.z" which regressed in 1.7.4.
2199 (fd.o #65923, Chengwei Yang)
2201 • If malloc() returns NULL in _dbus_string_init() or similar, don't free
2202 an invalid pointer if the string is later freed (fd.o #65959, Chengwei Yang)
2204 • If malloc() returns NULL in dbus_set_error(), don't va_end() a va_list
2205 that was never va_start()ed (fd.o #66300, Chengwei Yang)
2207 • fix build failure with --enable-stats (fd.o #66004, Chengwei Yang)
2209 • fix a regression test on platforms with strict alignment (fd.o #67279,
2212 • Avoid calling function parameters "interface" since certain Windows headers
2213 have a namespace-polluting macro of that name (fd.o #66493, Ivan Romanov)
2215 • Assorted Doxygen fixes (fd.o #65755, Chengwei Yang)
2217 • Various thread-safety improvements to static variables (fd.o #68610,
2220 • Make "make -j check" work (fd.o #68852, Simon McVittie)
2222 • Fix a NULL pointer dereference on an unlikely error path
2223 (fd.o #69327, Sviatoslav Chagaev)
2225 • Improve valgrind memory pool tracking (fd.o #69326,
2228 • Don't over-allocate memory in dbus-monitor (fd.o #69329,
2231 • dbus-monitor can monitor dbus-daemon < 1.5.6 again
2232 (fd.o #66107, Chengwei Yang)
2235 · If accept4() fails with EINVAL, as it can on older Linux kernels
2236 with newer glibc, try accept() instead of going into a busy-loop.
2237 (fd.o #69026, Chengwei Yang)
2238 · If socket() or socketpair() fails with EINVAL or EPROTOTYPE,
2239 for instance on Hurd or older Linux with a new glibc, try without
2240 SOCK_CLOEXEC. (fd.o #69073; Pino Toscano, Chengwei Yang)
2241 · Fix a file descriptor leak on an error code path.
2242 (fd.o #69182, Sviatoslav Chagaev)
2243 · dbus-run-session: clear some unwanted environment variables
2244 (fd.o #39196, Simon)
2245 · dbus-run-session: compile on FreeBSD (fd.o #66197, Chengwei Yang)
2246 · Don't fail the autolaunch test if there is no DISPLAY (fd.o #40352, Simon)
2247 · Use dbus-launch from the builddir for testing, not the installed copy
2248 (fd.o #37849, Chengwei Yang)
2249 · Fix compilation if writev() is unavailable (fd.o #69409,
2251 · Remove broken support for LOCAL_CREDS credentials passing, and
2252 document where each credential-passing scheme is used (fd.o #60340,
2254 · Make autogen.sh work on *BSD by not assuming GNU coreutils functionality
2255 (fd.o #35881, #69787; Chengwei Yang)
2256 · dbus-monitor: be portable to NetBSD (fd.o #69842, Chengwei Yang)
2257 · dbus-launch: stop using non-portable asprintf (fd.o #37849, Simon)
2258 · Improve error reporting from the setuid activation helper (fd.o #66728,
2262 · Remove unavailable command-line options from 'dbus-daemon --help'
2263 (fd.o #42441, Ralf Habacker)
2264 · Add support for looking up local TCPv4 clients' credentials on
2265 Windows XP via the undocumented AllocateAndGetTcpExTableFromStack
2266 function (fd.o #66060, Ralf Habacker)
2267 · Fix insufficient dependency-tracking (fd.o #68505, Simon McVittie)
2268 · Don't include wspiapi.h, fixing a compiler warning (fd.o #68852,
2272 · add DBUS_ENABLE_ASSERT, DBUS_ENABLE_CHECKS for less confusing
2273 conditionals (fd.o #66142, Chengwei Yang)
2274 · improve verbose-mode output (fd.o #63047, Colin Walters)
2275 · consolidate Autotools and CMake build (fd.o #64875, Ralf Habacker)
2276 · fix various unused variables, unusual build configurations
2277 etc. (fd.o #65712, #65990, #66005, #66257, #69165, #69410, #70218;
2278 Chengwei Yang, Vasiliy Balyasnyy)
2280 D-Bus 1.7.4 (2013-06-13)
2283 The “but is your thread-safety thread-safe?” release.
2287 • CVE-2013-2168: Fix misuse of va_list that could be used as a denial
2288 of service for system services. Vulnerability reported by Alexandru Cornea.
2293 • The Windows version of libdbus now contains a C++ source file, used
2294 to provide global initialization when the library is loaded.
2295 gcc (mingw*) users should ensure that g++ is also installed.
2297 • The libxml2-based configuration reader (which hasn't worked for 2.5 years,
2298 and was never the recommended option) has been removed. Expat is now a
2303 • It should now be safe to call dbus_threads_init_default() from any thread,
2304 at any time. Authors of loadable modules and plugins that use libdbus
2305 should consider doing so during initialization.
2306 (fd.o #54972, Simon McVittie)
2308 • Improve dbus-send documentation and command-line parsing (fd.o #65424,
2312 · dbus-run-session: experimental new tool to start a temporary D-Bus
2313 session, e.g. for regression tests or a text console, replacing
2314 certain uses of dbus-launch which weren't really correct
2315 (fd.o #39196, Simon)
2319 • In dbus-daemon, don't crash if a .service file starts with key=value
2320 (fd.o #60853, Chengwei Yang)
2323 · Fix a crash similar to CVE-2013-2168 the first time we try to use syslog
2324 on a platform not defining LOG_PERROR, such as Solaris or QNX.
2325 This regressed in 1.7.0. (Simon)
2326 · Fix an assertion failure if we try to activate systemd services before
2327 systemd connects to the bus (fd.o #50199, Chengwei Yang)
2328 · Avoid compiler warnings for ignoring the return from write()
2332 · Under cmake, install runtime libraries (DLLs) into bin/ instead of lib/
2333 so that Windows finds them (fd.o #59733, Ralf Habacker)
2335 D-Bus 1.7.2 (2013-04-25)
2338 The “only partially opaque” release.
2340 Configuration changes:
2342 • On non-QNX Unix platforms, the default limit on fds per message in the
2343 session bus configuration has reduced from 4096 to 1024. The default
2344 limit used on the system bus was already 1024. On QNX, both limits are
2345 reduced further, to 128.
2349 • D-Bus Specification 0.21
2350 · Following Unicode Corrigendum #9, the noncharacters U+nFFFE, U+nFFFF,
2351 U+FDD0..U+FDEF are allowed in UTF-8 strings again. (fd.o #63072,
2356 • Diagnose incorrect use of dbus_connection_get_data() with negative slot
2357 (i.e. before allocating the slot) rather than returning junk
2358 (fd.o #63127, Dan Williams)
2360 • Fix a cmake build regression since 1.7.0 (fd.o #63682; Ralf Habacker,
2364 · On Linux, link successfully with glibc 2.17 (fd.o #63166, Simon McVittie)
2365 · Under systemd, log to syslog only, not stderr, avoiding duplication
2366 (fd.o #61399, #39987; Colin Walters, Dagobert Michelsen)
2367 · Under systemd, remove unnecessary dependency on syslog.socket
2368 (fd.o #63531, Cristian Rodríguez)
2369 · Include alloca.h for alloca() if available, fixing compilation on
2370 Solaris 10 (fd.o #63071, Dagobert Michelsen)
2371 · Allow use of systemd-logind without the rest of systemd
2372 (fd.o #62585, Martin Pitt)
2373 · When built with CMake, link to librt and use the right path for
2374 meinproc's XSLT stylesheets (fd.o #61637, Ralf Habacker)
2375 · Reduce the default limit on number of fds per message to 128 under
2376 QNX, working around an arbitrary OS limit (fd.o #61176, Matt Fischer)
2379 · Do not claim that all bus clients have the dbus-daemon's credentials;
2380 pick up local TCPv4 clients' credentials (process ID and security
2381 identifier, i.e. user) using GetExtendedTcpTable() (fd.o #61787,
2384 D-Bus 1.7.0 (2013-02-22)
2387 The "Disingenuous Assertions" release.
2389 This is a new development release, starting the 1.7.x branch. D-Bus 1.6
2390 remains the recommended version for long-term-supported distributions
2391 or the upcoming GNOME 3.8 release.
2393 Build-time configuration changes:
2395 • The --with-dbus-session-bus-default-address configure option is no longer
2396 supported. Use the new --with-dbus-session-bus-connect-address and
2397 --with-dbus-session-bus-listen-address options instead. On Windows, you
2398 usually want them to have the same argument; on Unix, the defaults are
2401 • Similarly, the DBUS_SESSION_BUS_DEFAULT_ADDRESS CMake variable is no longer
2402 supported; use the new DBUS_SESSION_BUS_LISTEN_ADDRESS and
2403 DBUS_SESSION_BUS_CONNECT_ADDRESS variables instead.
2405 • cmake/cross-compile.sh has been removed. Instead, please use a
2406 cross-toolchain file (-DCMAKE_TOOLCHAIN_FILE) as documented at
2407 <http://www.vtk.org/Wiki/CMake_Cross_Compiling>; or use Autotools
2408 as documented in "info automake Cross-Compilation", and set
2409 PKG_CONFIG_PATH appropriately.
2413 • Man pages now require xmlto (or either xmlto or meinproc, if using CMake).
2414 • man2html is no longer used.
2418 • D-Bus Specification 0.20
2419 · actually say that /org/freedesktop/DBus is the object that
2420 implements o.fd.DBus (fd.o #51865, Colin Walters)
2421 · various reorganisation for better clarity (fd.o #38252, Simon McVittie)
2422 · stop claiming that all basic types work just like INT32 (strings don't!)
2424 • The "source code" for the man pages is now Docbook XML, eliminating
2425 the outdated duplicate copies used when building with CMake.
2426 (fd.o #59805; Ralf Habacker, Simon McVittie)
2430 • In the activation helper, when compiled for tests, do not reset the system
2431 bus address, fixing the regression tests. (fd.o #52202, Simon)
2433 • Fix building with Valgrind 3.8, at the cost of causing harmless warnings
2434 with Valgrind 3.6 on some compilers (fd.o #55932, Arun Raghavan)
2436 • Merge <servicehelper> from system-local.conf if necessary (fd.o #51560,
2439 • Under CMake, prefer xmlto over meinproc (fd.o #59733, Ralf Habacker)
2441 • Stop duplicating CMake's own logic to find libexpat
2442 (fd.o #59733, Ralf Habacker)
2444 • Don't assume CMake host and build system are the same (fd.o #59733,
2447 • Avoid deprecation warnings for GLib 2.35 (fd.o #59971, Simon McVittie)
2450 · Check for functions in libpthread correctly, fixing compilation on
2451 (at least) OpenBSD (fd.o #47239, Simon)
2452 · Don't leak temporary fds pointing to /dev/null (fd.o #56927,
2454 · Update sd-daemon.[ch] from systemd (fd.o #60681)
2455 · Add partial support for QNX (fd.o #60339, fd.o #61176; Matt Fischer)
2458 · The default session bus listening and connecting address is now
2459 "autolaunch:", which makes D-Bus on Windows interoperate with itself
2460 and GDBus "out of the box". Use the configure options and cmake variables
2461 described above if you require a different autolaunch scope.
2462 (fd.o #38201, Simon McVittie)
2463 · Avoid a CMake warning under Cygwin (fd.o #59401, Ralf Habacker)
2465 • Create session.d, system.d directories under CMake (fd.o #41319,
2468 D-Bus 1.6.8 (2012-09-28)
2471 The "Fix one thing, break another" release.
2473 • Follow up to CVE-2012-3524: The additional hardening
2474 work to use __secure_getenv() as a followup to bug #52202
2475 broke certain configurations of gnome-keyring. Given
2476 the difficulty of making this work without extensive
2477 changes to gnome-keyring, use of __secure_getenv() is
2480 D-Bus 1.6.6 (2012-09-28)
2483 The "Clear the environment in your setuid binaries, please" release.
2485 • CVE-2012-3524: Don't access environment variables (fd.o #52202)
2486 Thanks to work and input from Colin Walters, Simon McVittie,
2487 Geoffrey Thomas, and others.
2489 · Fix compilation on Solaris (fd.o #53286, Jonathan Perkin)
2490 · Work around interdependent headers on OpenBSD by including sys/types.h
2491 before each use of sys/socket.h (fd.o #54418, Brad Smith)
2493 D-Bus 1.6.4 (2012-07-18)
2496 • Detect that users are "at the console" correctly when configured with
2497 a non-default path such as --enable-console-auth-dir=/run/console
2498 (fd.o #51521, Dave Reisner)
2500 • Remove an incorrect assertion from DBusTransport (fd.o #51657,
2503 • Make --enable-developer default to "no" (regression in 1.6.2;
2504 fd.o #51657, Simon McVittie)
2507 · Launch dbus-daemon correctly if its path contains a space
2508 (fd.o #49450, Wolfgang Baron)
2510 D-Bus 1.6.2 (2012-06-27)
2513 The "Ice Cabbage" release.
2515 • Change how we create /var/lib/dbus so it works under Automake >= 1.11.4
2516 (fd.o #51406, Simon McVittie)
2518 • Don't return from dbus_pending_call_set_notify with a lock held on OOM
2519 (fd.o #51032, Simon McVittie)
2521 • Disconnect "developer mode" (assertions, verbose mode etc.) from
2522 Automake maintainer mode. D-Bus developers should now configure with
2523 --enable-developer. Automake maintainer mode is now on by default;
2524 distributions can disable it with --disable-maintainer-mode.
2525 (fd.o #34671, Simon McVittie)
2527 • Automatically define DBUS_STATIC_BUILD in static-only Autotools builds,
2528 fixing linking when targeting Windows (fd.o #33973; william, Simon McVittie)
2531 · Check for libpthread under CMake on Unix (fd.o #47237, Simon McVittie)
2533 D-Bus 1.6.0 (2012-06-05)
2536 The “soul of this machine has improved” release.
2538 This version starts a new stable branch of D-Bus: only bug fixes will
2539 be accepted into 1.6.x. Other changes will now go to the 1.7.x branch.
2541 Summary of changes since 1.4.x:
2544 · PTHREAD_MUTEX_RECURSIVE on Unix
2545 · compiler support for 64-bit integers (int64_t or equivalent)
2547 • D-Bus Specification v0.19
2549 • New dbus-daemon features
2550 · <allow own_prefix="com.example.Service"/> rules allow the service to
2551 own names like com.example.Service.Instance3
2552 · optional systemd integration when checking at_console policies
2553 · --nopidfile option, mainly for use by systemd
2554 · path_namespace and arg0namespace may appear in match rules
2555 · eavesdropping is disabled unless the match rule contains eavesdrop=true
2558 · functions to validate various string types (dbus_validate_path() etc.)
2559 · dbus_type_is_valid()
2560 · DBusBasicValue, a union of every basic type
2563 · removed an unsafe reimplementation of recursive mutexes
2564 · dbus-daemon no longer busy-loops if it has far too many file descriptors
2565 · dbus-daemon.exe --print-address works on Windows
2566 · all the other bug fixes from 1.4.20
2568 • Other major implementation changes
2569 · on Linux, dbus-daemon uses epoll if supported, for better scalability
2570 · dbus_threads_init() ignores its argument and behaves like
2571 dbus_threads_init_default() instead
2572 · removed the per-connection link cache, improving dbus-daemon performance
2574 • Developer features
2575 · optional Valgrind instrumentation (--with-valgrind)
2576 · optional Stats interface on the dbus-daemon (--enable-stats)
2577 · optionally abort whenever malloc() fails (--enable-embedded-tests
2578 and export DBUS_MALLOC_CANNOT_FAIL=1)
2580 Changes since 1.5.12:
2582 • Be more careful about monotonic time vs. real time, fixing DBUS_COOKIE_SHA1
2583 spec-compliance (fd.o #48580, David Zeuthen)
2585 • Don't use install(1) within the source/build trees, fixing the build as
2586 non-root when using OpenBSD install(1) (fd.o #48217, Antoine Jacoutot)
2588 • Add missing commas in some tcp and nonce-tcp addresses, and remove
2589 an unused duplicate copy of the nonce-tcp transport in Windows builds
2590 (fd.o #45896, Simon McVittie)
2592 D-Bus 1.5.12 (2012-03-27)
2595 The “Big Book of Science” release.
2597 • Add public API to validate various string types:
2598 dbus_validate_path(), dbus_validate_interface(), dbus_validate_member(),
2599 dbus_validate_error_name(), dbus_validate_bus_name(), dbus_validate_utf8()
2600 (fd.o #39549, Simon McVittie)
2602 • Turn DBusBasicValue into public API so bindings don't need to invent their
2603 own "union of everything" type (fd.o #11191, Simon McVittie)
2605 • Enumerate data files included in the build rather than using find(1)
2606 (fd.o #33840, Simon McVittie)
2608 • Add support for policy rules like <allow own_prefix="com.example.Service"/>
2609 in dbus-daemon (fd.o #46273, Alban Crequy)
2612 · make dbus-daemon.exe --print-address (and --print-pid) work again
2613 on Win32, but not on WinCE (fd.o #46049, Simon McVittie)
2614 · fix duplicate case value when compiling against mingw-w64
2615 (fd.o #47321, Andoni Morales Alastruey)
2617 D-Bus 1.5.10 (2012-02-21)
2620 The "fire in Delerium" release.
2622 On Unix platforms, PTHREAD_MUTEX_RECURSIVE (as specified in POSIX 2008 Base
2623 and SUSv2) is now required.
2625 • D-Bus Specification 0.19:
2626 · Formally define unique connection names and well-known bus names,
2627 and document best practices for interface, bus, member and error names,
2628 and object paths (fd.o #37095, Simon McVittie)
2629 · Document the search path for session and system services on Unix, and
2630 where they should be installed by build systems (fd.o #21620, fd.o #35306;
2632 · Document the systemd transport (fd.o #35232, Lennart Poettering)
2634 • Make dbus_threads_init() use the same built-in threading implementation
2635 as dbus_threads_init_default(); the user-specified primitives that it
2636 takes as a parameter are now ignored (fd.o #43744, Simon McVittie)
2638 • Allow all configured auth mechanisms, not just one (fd.o #45106,
2641 • Improve cmake build system (Ralf Habacker):
2642 · simplify XML parser dependencies (fd.o #41027)
2643 · generate build timestamp (fd.o #41029)
2644 · only create batch files on Windows
2645 · fix option and cache syntax
2646 · add help-options target
2647 · share dbus-arch-deps.h.in with autotools rather than having our
2648 own version (fd.o #41033)
2650 • Build tests successfully with older GLib, as found in e.g. Debian 6
2651 (fd.o #41219, Simon McVittie)
2653 • Avoid use of deprecated GThread API (fd.o #44413, Martin Pitt)
2655 • Build documentation correctly if man2html doesn't support filenames on
2656 its command-line (fd.o #43875, Jack Nagel)
2658 • Improve test coverage. To get even more coverage, run the tests with
2659 DBUS_TEST_SLOW=1 (fd.o #38285, #42811; Simon McVittie)
2661 • Reduce the size of the shared library by moving functionality only used
2662 by dbus-daemon, tests etc. into their internal library and deleting
2663 unused code (fd.o #34976, #39759; Simon McVittie)
2665 • Add dbus-daemon --nopidfile option, overriding the configuration, for
2666 setups where the default configuration must include <pidfile/> to avoid
2667 breaking traditional init, but the pid file is in fact unnecessary; use
2668 it under systemd to improve startup time a bit (fd.o #45520,
2671 • Optionally (if configured --with-valgrind) add instrumentation to debug
2672 libdbus and associated tools more meaningfully under Valgrind
2673 (fd.o #37286, Simon McVittie)
2675 • Improve the dbus-send(1) man page (fd.o #14005, Simon McVittie)
2677 • Make dbus-protocol.h compatible with C++11 (fd.o #46147, Marc Mutz)
2679 • If tests are enabled and DBUS_MALLOC_CANNOT_FAIL is set in the environment,
2680 abort on failure to malloc() (like GLib does), to turn runaway memory leaks
2681 into a debuggable core-dump if a resource limit is applied (fd.o #41048,
2684 • Don't crash if realloc() returns NULL in a debug build (fd.o #41048,
2688 · Replace our broken reimplementation of recursive mutexes, which has
2689 been broken since 2006, with an ordinary pthreads recursive mutex
2690 (fd.o #43744; Sigmund Augdal, Simon McVittie)
2691 · Use epoll(7) for a more efficient main loop in Linux; equivalent patches
2692 welcomed for other OSs' equivalents like kqueue, /dev/poll, or Solaris
2693 event ports (fd.o #33337; Simon McVittie, Ralf Habacker)
2694 · When running under systemd, use it instead of ConsoleKit to check
2695 whether to apply at_console policies (fd.o #39609, Lennart Poettering)
2696 · Avoid a highly unlikely fd leak (fd.o #29881, Simon McVittie)
2697 · Don't close invalid fd -1 if getaddrinfo fails (fd.o #37258, eXeC001er)
2698 · Don't touch ~/.dbus and ~/.dbus-keyrings when running 'make installcheck'
2699 (fd.o #41218, Simon McVittie)
2700 · Stop pretending we respect XDG_DATA_DIRS for system services: the launch
2701 helper doesn't obey environment variables to avoid privilege escalation
2702 attacks, so make the system bus follow the same rules
2703 (fd.o #21620, Simon McVittie)
2706 · Find the dbus-daemon executable next to the shared library (fd.o #41558;
2707 Jesper Dam, Ralf Habacker)
2708 · Remove the faulty implementation of _dbus_condvar_wake_all (fd.o #44609,
2711 D-Bus 1.5.8 (2011-09-21)
2714 The "cross-metering" release.
2716 In addition to dead code removal and refactoring, this release contains all
2717 of the bugfixes from 1.4.16.
2719 • Clean up dead code, and make more warnings fatal in development builds
2720 (fd.o #39231, fd.o #41012; Simon McVittie)
2722 • If full test coverage is requested via --enable-tests, strictly require
2723 Python, pygobject and dbus-python, which are required by some tests; if not,
2724 and Python is missing, skip those tests rather than failing
2725 (fd.o #37847, Simon McVittie)
2727 • When using cmake, provide the same version-info API in the installed headers
2728 as for autotools (DBUS_VERSION, etc.) (fd.o #40905, Ralf Habacker)
2730 • Add a regression test for fd.o #38005 (fd.o #39836, Simon McVittie)
2732 • Make "NOCONFIGURE=1 ./autogen.sh" not run configure (Colin Walters)
2734 • Add _DBUS_STATIC_ASSERT and use it to check invariants (fd.o #39636,
2737 • Fix duplicates in authors list (Ralf Habacker)
2739 • Fix broken links from dbus-tutorial.html if $(htmldir) != $(docdir)
2740 (fd.o #39879, Chris Mayo)
2742 • Fix a small memory leak, and a failure to report errors, when updating
2743 a service file entry for activation (fd.o #39230, Simon McVittie)
2746 · Clean up (non-abstract) Unix sockets on bus daemon exit (fd.o #38656;
2747 Brian Cameron, Simon McVittie)
2748 · On systems that use libcap-ng but not systemd, drop supplemental groups
2749 when switching to the daemon user (Red Hat #726953, Steve Grubb)
2750 · Make the cmake build work again on GNU platforms (fd.o #29228,
2752 · Fix compilation on non-C99 systems that have inttypes.h but not stdint.h,
2753 like Solaris (fd.o #40313, Dagobert Michelsen)
2754 · Define CMSG_ALIGN, CMSG_LEN, CMSG_SPACE on Solaris < 10
2755 (fd.o #40235, Simon McVittie)
2756 · Cope with Unixes that don't have LOG_PERROR, like Solaris 10
2757 (fd.o #39987, Simon McVittie)
2758 · Cope with platforms whose vsnprintf violates both POSIX and C99, like
2759 Tru64, IRIX and HP-UX (fd.o #11668, Simon McVittie)
2762 · Fix compilation on MSVC, which doesn't understand "inline" with its
2763 C99 meaning (fd.o #40000; Ralf Habacker, Simon McVittie)
2764 · Fix misuse of GPid in test/dbus-daemon.c (fd.o #40003, Simon McVittie)
2765 · Fix cross-compilation to Windows with Automake (fd.o #40003, Simon McVittie)
2767 D-Bus 1.5.6 (2011-07-29)
2770 The "weird, gravy-like aftertaste" release.
2772 In addition to new features and refactoring, this release contains all of the
2773 bugfixes from 1.4.14.
2775 Potentially incompatible (Bustle and similar debugging tools will need
2776 changes to work as intended):
2778 • Do not allow match rules to "eavesdrop" (receive messages intended for a
2779 different recipient) by mistake: eavesdroppers must now opt-in to this
2780 behaviour by putting "eavesdrop='true'" in the match rule, which will
2781 not have any practical effect on buses where eavesdropping is not allowed
2782 (fd.o #37890, Cosimo Alfarano)
2786 • D-Bus Specification version 0.18 (fd.o #37890, fd.o #39450, fd.o #38252;
2787 Cosimo Alfarano, Simon McVittie)
2788 · add the "eavesdrop" keyword to match rules
2789 · define eavesdropping, unicast messages and broadcast messages
2790 · stop claiming that match rules are needed to match unicast messages to you
2791 · promote the type system to be a top-level section
2793 • Use DBUS_ERROR_OBJECT_PATH_IN_USE if dbus_connection_try_register_object_path
2794 or dbus_connection_try_register_fallback fails, not ...ADDRESS_IN_USE,
2795 and simplify object-path registration (fd.o #38874, Jiří Klimeš)
2797 • Consistently use atomic operations on everything that is ever manipulated
2798 via atomic ops, as was done for changes to DBusConnection's refcount in
2799 1.4.12 (fd.o #38005, Simon McVittie)
2801 • Fix a file descriptor leak when connecting to a TCP socket (fd.o #37258,
2804 • Make "make check" in a clean tree work, by not running tests until
2805 test data has been set up (fd.o #34405, Simon McVittie)
2807 • The dbus-daemon no longer busy-loops if it has a very large number of file
2808 descriptors (fd.o #23194, Simon McVittie)
2810 • Refactor message flow through dispatching to avoid locking violations if
2811 the bus daemon's message limit is hit; remove the per-connection link cache,
2812 which was meant to improve performance, but now reduces it (fd.o #34393,
2815 • Some cmake fixes (Ralf Habacker)
2817 • Remove dead code, mainly from DBusString (fd.o #38570, fd.o #39610;
2818 Simon McVittie, Lennart Poettering)
2820 • Stop storing two extra byte order indicators in each D-Bus message
2821 (fd.o #38287, Simon McVittie)
2823 • Add an optional Stats interface which can be used to get statistics from
2824 a running dbus-daemon if enabled at configure time with --enable-stats
2825 (fd.o #34040, Simon McVittie)
2827 • Fix various typos (fd.o #27227, fd.o #38284; Sascha Silbe, Simon McVittie)
2829 • Documentation (fd.o #36156, Simon McVittie):
2830 · let xsltproc be overridden as usual: ./configure XSLTPROC=myxsltproc
2831 · install more documentation automatically, including man2html output
2832 · put dbus.devhelp in the right place (it must go in ${htmldir})
2835 · look for system services in /lib/dbus-1/system-services in addition to all
2836 the other well-known locations; note that this should always be /lib,
2837 even on platforms where shared libraries on the root FS would go in /lib64,
2838 /lib/x86_64-linux-gnu or similar (fd.o #35229, Lennart Poettering)
2839 · opt-in to fd passing on Solaris (fd.o #33465, Simon McVittie)
2841 • Windows-specific (Ralf Habacker):
2842 · fix use of a mutex for autolaunch server detection
2843 · don't crash on malloc failure in _dbus_printf_string_upper_bound
2845 D-Bus 1.5.4 (2011-06-10)
2848 Security (local denial of service):
2850 • Byte-swap foreign-endian messages correctly, preventing a long-standing
2851 local DoS if foreign-endian messages are relayed through the dbus-daemon
2852 (backporters: this is git commit c3223ba6c401ba81df1305851312a47c485e6cd7)
2853 (CVE-2011-2200, fd.o #38120, Debian #629938; Simon McVittie)
2857 • The constant to use for an infinite timeout now has a name,
2858 DBUS_TIMEOUT_INFINITE. It is numerically equivalent to 0x7fffffff (INT32_MAX)
2859 which can be used for source compatibility with older versions of libdbus.
2861 • If GLib and DBus-GLib are already installed, more tests will be built,
2862 providing better coverage. The new tests can also be installed via
2863 ./configure --enable-installed-tests
2864 for system integration testing, if required. (fd.o #34570, Simon McVittie)
2868 • Consistently use atomic operations for the DBusConnection's refcount,
2869 fixing potential threading problems (fd.o #38005, Simon McVittie)
2871 • Don't use -Wl,--gc-sections by default: in practice the size decrease is
2872 small (300KiB on x86-64) and it frequently doesn't work in unusual
2873 toolchains. To optimize for minimum installed size, you should benchmark
2874 various possibilities for CFLAGS and LDFLAGS, and set the best flags for
2875 your particular toolchain at configure time. (fd.o #33466, Simon McVittie)
2877 • Use #!/bin/sh for run-with-tmp-session-bus.sh, making it work on *BSD
2878 (fd.o #35880, Timothy Redaelli)
2880 • Use ln -fs to set up dbus for systemd, which should fix reinstallation
2881 when not using a DESTDIR (fd.o #37870, Simon McVittie)
2883 • Windows-specific changes:
2884 · don't try to build dbus-daemon-launch-helper (fd.o #37838, Mark Brand)
2886 D-Bus 1.5.2 (2011-06-01)
2889 The "Boar Hunter" release.
2891 Notes for distributors:
2893 This version of D-Bus no longer uses -fPIE by default. Distributions wishing
2894 to harden the dbus-daemon and dbus-launch-helper can re-enable this if their
2895 toolchain supports it reliably, via something like:
2897 ./configure CFLAGS=-fPIE LDFLAGS="-pie -Wl,-z,relro"
2899 or by using distribution-specific wrappers such as Debian's hardening-wrapper.
2903 • D-Bus Specification v0.17
2904 · Reserve the extra characters used in signatures by GVariant
2905 (fd.o #34529, Simon McVittie)
2906 · Define the ObjectManager interface (fd.o #34869, David Zeuthen)
2907 • Don't force -fPIE: distributions and libtool know better than we do whether
2908 it's desirable (fd.o #16621, fd.o #27215; Simon McVittie)
2909 • Allow --disable-gc-sections, in case your toolchain offers the
2910 -ffunction-sections, -fdata-sections and -Wl,--gc-sections options
2911 but they're broken, as seen on Solaris (fd.o #33466, Simon McVittie)
2912 • Install dbus-daemon and dbus-daemon-launch-helper in a more normal way
2913 (fd.o #14512; Simon McVittie, loosely based on a patch from Luca Barbato)
2914 • Ensure that maintainers upload documentation with the right permissions
2915 (fd.o #36130, Simon McVittie)
2916 • Don't force users of libdbus to be linked against -lpthread, -lrt
2917 (fd.o #32827, Simon McVittie)
2918 • Log system-bus activation information to syslog (fd.o #35705,
2920 • Log messages dropped due to quotas to syslog (fd.o #35358,
2922 • Make the nonce-tcp transport work on Unix (fd.o #34569, Simon McVittie)
2923 • On Unix, if /var/lib/dbus/machine-id cannot be read, try /etc/machine-id
2924 (fd.o #35228, Lennart Poettering)
2925 • In the regression tests, don't report fds as "leaked" if they were open
2926 on startup (fd.o #35173, Simon McVittie)
2927 • Make dbus-monitor bail out if asked to monitor more than one bus,
2928 rather than silently using the last one (fd.o #26548, Will Thompson)
2929 • Clarify documentation (fd.o #35182, Simon McVittie)
2930 • Clean up minor dead code and some incorrect error handling
2931 (fd.o #33128, fd.o #29881; Simon McVittie)
2932 • Check that compiler options are supported before using them (fd.o #19681,
2935 • Remove obsolete workaround for winioctl.h (fd.o #35083, Ralf Habacker)
2937 D-Bus 1.5.0 (2011-04-11)
2940 The "you never know when you need to tow something from your giant
2941 flying shark" release.
2943 • D-Bus Specification v0.16
2944 · Add support for path_namespace and arg0namespace in match rules
2945 (fd.o #24317, #34870; Will Thompson, David Zeuthen, Simon McVittie)
2946 · Make argNpath support object paths, not just object-path-like strings,
2947 and document it better (fd.o #31818, Will Thompson)
2948 • Let the bus daemon implement more than one interface (fd.o #33757,
2950 • Optimize _dbus_string_replace_len to reduce waste (fd.o #21261,
2952 • Require user intervention to compile with missing 64-bit support
2953 (fd.o #35114, Simon McVittie)
2954 • Add dbus_type_is_valid as public API (fd.o #20496, Simon McVittie)
2955 • Raise UnknownObject instead of UnknownMethod for calls to methods on
2956 paths that are not part of the object tree, and UnknownInterface for calls
2957 to unknown interfaces in the bus daemon (fd.o #34527, Lennart Poettering)
2959 D-Bus 1.4.8 (2011-04-08)
2962 The "It's like the beginning of a lobster" release.
2964 • Rename configure.in to configure.ac, and update it to modern conventions
2965 (fd.o #32245; Javier Jardón, Simon McVittie)
2966 • Correctly give XDG_DATA_HOME priority over XDG_DATA_DIRS (fd.o #34496,
2968 • Prevent X11 autolaunching if $DISPLAY is unset or empty, and add
2969 --disable-x11-autolaunch configure option to prevent it altogether
2970 in embedded environments (fd.o #19997, NB#219964; Simon McVittie)
2971 • Install the documentation, and an index for Devhelp (fd.o #13495,
2972 Debian #454142; Simon McVittie, Matthias Clasen)
2973 • If checks are not disabled, check validity of string-like types and
2974 booleans when sending them (fd.o #16338, NB#223152; Simon McVittie)
2975 • Add UnknownObject, UnknownInterface, UnknownProperty and PropertyReadOnly
2976 errors to dbus-shared.h (fd.o #34527, Lennart Poettering)
2977 • Break up a huge conditional in config-parser so gcov can produce coverage
2978 data (fd.o #10887, Simon McVittie)
2979 • List which parts of the Desktop Entry specification are applicable to
2980 .service files (fd.o #19159, Sven Herzberg)
2981 • Don't suppress service activation if two services have the same Exec=
2982 (fd.o #35750, Colin Walters)
2984 · Avoid the name ELEMENT_TYPE due to namespace-pollution from winioctl.h
2986 · Include _dbus_path_is_absolute in libdbus on Windows, fixing compilation
2987 (fd.o #32805, Mark Brand)
2989 D-Bus 1.4.6 (2010-02-17)
2992 The "1, 2, miss a few, 99, 100" release.
2994 • Remove unfinished changes intended to support GTest-based tests,
2995 which were mistakenly included in 1.4.4
2997 D-Bus 1.4.4 (2010-02-17)
3000 • Switch back to using even micro versions for stable releases; 1.4.1
3001 should have been called 1.4.2, so skip that version number
3002 • Don't leave bad file descriptors being watched when spawning processes,
3003 which could result in a busy-loop (fd.o #32992, NB#200248; possibly
3004 also LP#656134, LP#680444, LP#713157)
3005 • Check for MSG_NOSIGNAL correctly
3006 • Fix failure to detect abstract socket support (fd.o #29895)
3007 • Make _dbus_system_logv actually exit with DBUS_SYSTEM_LOG_FATAL
3008 (fd.o #32262, NB#180486)
3009 • Improve some error code paths (fd.o #29981, fd.o #32264, fd.o #32262,
3010 fd.o #33128, fd.o #33277, fd.o #33126, NB#180486)
3011 • Avoid possible symlink attacks in /tmp during compilation (fd.o #32854)
3012 • Tidy up dead code (fd.o #25306, fd.o #33128, fd.o #34292, NB#180486)
3013 • Improve gcc malloc annotations (fd.o #32710)
3014 • If the system bus is launched via systemd, protect it from the OOM killer
3015 • Documentation improvements (fd.o #11190)
3016 • Avoid readdir_r, which is difficult to use correctly (fd.o #8284,
3017 fd.o #15922, LP#241619)
3018 • Cope with invalid files in session.d, system.d (fd.o #19186,
3020 • Don't distribute generated files that embed our builddir (fd.o #30285,
3022 • Raise the system bus's fd limit to be sufficient for its configuration
3023 (fd.o #33474, LP#381063)
3024 • Fix syslog string processing
3026 • Remove broken gcov parsing code and --enable-gcov, and replace them
3027 with lcov HTML reports and --enable-compiler-coverage (fd.o #10887)
3029 · avoid live-lock in Windows CE due to unfair condition variables
3031 · support credentials-passing (fd.o #32542)
3033 · opt-in to thread safety (fd.o #33464)
3035 D-Bus 1.4.1 (20 December 2010)
3038 • Fix for CVE-2010-4352: sending messages with excessively-nested variants can
3039 crash the bus. The existing restriction to 64-levels of nesting previously
3040 only applied to the static type signature; now it also applies to dynamic
3041 nesting using variants. Thanks to Rémi Denis-Courmont for discoving this
3043 • OS X portability fixes, including launchd support.
3044 • Windows autolaunch improvements.
3045 • Various bug fixes.
3047 D-Bus 1.4.0 (6 Sep 2010)
3051 D-Bus 1.3.1 (23 June 2010)
3053 - New standardized PropertiesChanged signal in the properties interface
3054 - Various portability fixes, in particular to Windows platforms
3055 - Support forking bus services, for compatibility
3057 D-Bus 1.3.0 (29 July 2009)
3059 - ability for dbus-send to send to any bus (--address)
3060 - file descriptor passing on Unix socket transports
3061 - use of GCC atomic intrinsics for better processor support
3062 (requires -march=i486 or above for x86 compilation)
3063 - thread-safe FD_CLOEXEC setting on recent Linux kernels (2.6.24-27 and up)
3064 and glibc (2.9 for pipe2 and 2.10 for accept4)
3065 - feature negotiation in the bus daemon