Use cross platform function _dbus_get_real_time() for fetching current time.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=88896
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
[smcv: use %ld to avoid needing casts; reinstate printing the timestamp;
libdbus-1 is sufficient now that fd.o#83115 is fixed; print timestamp for
non-literal dbus-send replies too]
Reviewed-by: Ralf Habacker <ralf.habacker@freenet.de>
This provides backwards-compatible autolaunching behaviour, as long
as dbus-launch inherits the XDG_RUNTIME_DIR (which it presumably did
if it's going to work at all, since it must also have inherited the
DISPLAY). In particular, we go through the motions of starting the
dbus-daemon, so that we can start the "babysitter" process that will
maintain the X11 window to store the bus address.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=61301
Reviewed-by: Philip Withnall <philip.withnall@collabora.co.uk>
[smcv: decorate _dbus_lookup_user_bus with DBUS_PRIVATE_EXPORT so we
can still call it after fixing fd.o#83115; update cmake to match Autotools]
As a side benefit, this means that dbus-launch now understands
/etc/machine-id and not just /var/lib/dbus/machine-id.
Since machine_uuid comes out of libdbus allocated with dbus_malloc,
to avoid having to copy it from malloc-allocated to
dbus_malloc-allocated storage, it makes sense to change it to be
consistently dbus_malloc-allocated (particularly now that Bug #83115
has made use of internal symbols relatively painless). However, I'm
deliberately not changing the allocation model of any other strings
in dbus-launch right now; that's a larger yak-shaving exercise.
If OS builders (distributions) have chosen to use the per-user bus,
this provides two possible modes of operation for compatibility with
existing X session startup hooks.
A legacy-free system can just upload DISPLAY, XAUTHORITY and possibly
DBUS_SESSION_BUS_ADDRESS into dbus-daemon's and systemd's activation
environments, similar to
http://cgit.freedesktop.org/systemd/systemd/tree/xorg/50-systemd-user.sh
installed by systemd (but unlike systemctl,
dbus-update-activation-environment works for traditional
D-Bus-activated services, not just for systemd services).
A system where compatibility is required for environment variables
exported by snippets in /etc/X11/xinit/xinitrc.d (in Red Hat derivatives,
Gentoo, etc.) or /etc/X11/Xsession.d (Debian derivatives) can upload
the entire environment of the X session, minus some selected environment
variables which are specific to a login session (notably XDG_SESSION_ID).
In Debian, I plan to put the former in a new dbus-user-session package
that enables a user-session-centric mode of operation for D-Bus,
and the latter in the existing dbus-x11 package, with the intention that
dbus-x11 eventually becomes a tool for change-averse setups or goes
away entirely.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=61301
Reviewed-by: Philip Withnall <philip.withnall@collabora.co.uk>
- change "ref serial" to "in_reply_to" (avoiding whitespace for easy
visual parsing)
- prefix with # to clarify that these are not part of the data
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=89165
Reviewed-by: Ralf Habacker <ralf.habacker@freenet.de>
dbus-send could already pretty-print bytestrings that do not have
\0 termination, but those are awkward to work with (they need copying),
so they are now discouraged. Teach it to print bytestrings that
do have \0 termination as well.
In the process, rewrite this part of the message parser
to use dbus_message_iter_get_fixed_array(), which is the Right way
to get arrays of numbers out of a message.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=89109
Reviewed-by: Philip Withnall <philip.withnall@collabora.co.uk>
Move the dbus_connection_add_filter() call further up as a precaution,
because it isn't safe for a monitor to not have a filter that
swallows all messages.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=46787
Reviewed-by: Philip Withnall <philip.withnall@collabora.co.uk>
This is installed by default, but easy to filter out for embedded systems
or whatever.
Based on earlier work by Simon McVittie and Will Thompson
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=34140
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
The timeline of events in dbus-launch's main process goes something like this:
* do initial X calls
[1]
* do some other stuff
* fork
(child process starts doing some other stuff)
* return "intermediate parent" pid from fork()
* obtain bus daemon pid from bus_pid_to_launcher_pipe
[2]
* do things that might include X11 calls or killing the dbus-daemon
Meanwhile, the "babysitter" child goes like this:
* return 0 from fork()
[3]
* obtain bus daemon pid from parent process via bus_pid_to_babysitter_pipe
[4]
* do things that might include X11 calls or killing the bus daemon
Before [1] or [3], the right thing to do about an X error is to just
exit. The current implementation called kill(-1) first, which is
undesirable: it kills unrelated processes. With this change, we
just exit.
After [2] or [4], the right thing to do is to kill the dbus-daemon,
and that's what the existing code did.
Between [1] and [2], or between [3] and [4], there is no correct thing
that we can do immediately: we would have to wait for the end of the
"critical section", *then* kill the dbus-daemon. This has not yet been
implemented, so this patch relies for its correctness on the fact that
there are no libX11 calls between those points, so we cannot receive
an X error between them.
dbus-launch deserves more comments, or a reimplementation that is easier to
understand, but this change is certainly better than nothing.
[Commit message added, summarizing reviewers' comments -smcv]
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=74698
Reviewed-by: Simon McVittie
Reviewed-by: Thiago Macieira
eavesdropping as a match rule key introduced in DBus 1.5.6, and the
privous implementation doesn't keep backwards compatibility with older
dbus-daemon.
And the reference dbus-daemon implementation just fail if unknwon key
found in match rule, this is undefined hehavior in DBus Sepcification.
Also there is a feature request for change this hehavior to
"ignore unknown key in match rule", See
https://bugs.freedesktop.org/show_bug.cgi?id=66114
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=66107
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
--peer is a direct substitute for --address.
With --bus dbus-send registers on bus given by ADDRESS, thus allowing
messages to be sent to the bus.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=48816
[adjusted to apply to current master -smcv]
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
There are two ways to find the dbus-daemon for testing. The first one is
defined as string at compile stage and the second one is export it from
test environment.
The first way has limitation that after defined, it's static string, so
it's impossible to run installable check. So let's unify to the second
way.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=37849
[added missing "}" -smcv]
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
--peer is a direct substitute for --address.
With --bus dbus-send registers on bus given by ADDRESS, thus allowing
messages to be sent to the bus.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=48816
[adjusted to apply to current master -smcv]
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Currently, DBus Specification only consists of four message types, so to
monitor all the types of message, no need to match all of them but just
left it empty is OK.
Signed-off-by: Chengwei Yang <chengwei.yang@intel.com>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=66107
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
There are two build failure on NetBSD 6.1.1 with gcc 4.5.3, the first
one is char to int, warning treated as error. The second one is a mismatch
between format string and arguments.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=69842
[adjusted commit message -smcv]
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Fix an incorrect sizeof which leads to allocation of more memory than
actually needed.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=69329
[elide redundant "* sizeof (char)" which is 1 by definition -smcv]
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Fix an incorrect sizeof which leads to allocation of more memory than
actually needed.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=69329
[elide redundant "* sizeof (char)" which is 1 by definition -smcv]
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
When do autolaunch testing, libdbus will try to start dbus-launch in
installed direcotry, if fail then fall back to dbus-launch in $PATH.
dbus-launch does a relative better thing to start dbus-daemon in build
directory, however, in most of case, the build $prefix is different from
the real prefix where dbus-daemon installed. So dbus-daemon will fail to
start due to can't find its config file. And then dbus-launch will fall
back to finally the installed dbus-daemon.
This patch fix this behavior and will start dbus-launch and dbus-daemon
in build directory in test environment.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=37849
In a previous patch, it check SIGHUP for windows, however, in fact there
is dbus-launch-win.c supposed to be used on windows. So just use SIGHUP
unconditionally.
Also free memory on OOM, although this doesn't make much sense since
this is a oneshort program, rather than a daemon.
Signed-off-by: Chengwei Yang <chengwei.yang@intel.com>
[fixed whitespace -smcv]
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=66068
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
DBUS_SESSION_BUS_PID is not mandatory to set, but we should unset it
if present, since it points to a different session's bus. Likewise for
DBUS_SESSION_BUS_WINDOWID.
Similarly, if DBUS_STARTER_BUS_TYPE and DBUS_STARTER_ADDRESS
are set (as they would be under GNOME Terminal 3.8, see
<https://bugs.freedesktop.org/show_bug.cgi?id=63119>) then they
are likely to point to a different session's bus.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=39196
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: Colin Walters <walters@verbum.org>
In Linux envrionment, signal.h included by sys/wait.h, however, this
isn't the case in FreeBSD. So explicit include it to fix build failure.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=66197
Signed-off-by: Chengwei Yang <chengwei.yang@intel.com>
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
