In commit ab7b3f9, Ralf notes that handle_reload_watch() is (in principle)
cross-platform. However, there's no way to trigger it on Windows, because
nothing ever writes to the pipe. Make the entire pipe-to-self trick
Unix-specific instead.
Reviewed-by: Will Thompson <will.thompson@collabora.co.uk>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=40002
This patch ensures the daemon process doesn't inherit any supplemental
groups for the root user from an administrator login via an init
script.
This is only an issue for pre-systemd systems.
https://bugzilla.redhat.com/show_bug.cgi?id=726953
On OSs with abstract sockets, this is close enough. On OSs without
abstract sockets, this results in failing to clean up Unix sockets
in /tmp if someone has sent us thousands of SIGHUP signals since we
last entered the main loop - I think that's acceptable.
The reload pipe should never get closed, but if it is for some reason,
we want a SIGTERM after that to cause an exit too.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=38656
Reviewed-by: Will Thompson <will.thompson@collabora.co.uk>
Signals are POSIX but not ISO C, so guard it with DBUS_UNIX.
dbus-sysdeps-util-win doesn't actually implement _dbus_set_signal_handler
anyway, so not compiling this code on non-Unix seems more honest.
Backported to dbus-1.4, originally part of commit c7ef3ead55.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=33336
Reviewed-by: Thiago Macieira <thiago@kde.org>
In order to allow D-Bus usage during early boot (where /usr is not
accessible) also search for bus activation files in
/lib/dbus-1/system-services/. This is only a first step in the right
direction, before we really can boot without /usr we'd need to move all
current activation files (or possibly replace
/usr/dbus-1/system-services to a symlink to
/lib/dbus-1/system-services).
Using $(LN_S) is inappropriate because it could in theory mean either
ln -s, ln or cp -p depending on autoconf checks.
Not using -f breaks reinstallation directly from source (DESTDIR unset),
because the symlinks will already exist.
Because systemd isn't currently portable to non-Linux, let alone
non-SUS-compliant systems, it seems safe to assume that ln -fs behaves
as specified by SUS if systemd was found.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=37870
Reviewed-by: Colin Walters <walters@verbum.org>
Packagers should only enable this flag if they have confirmed that it
actually works on their toolchain (it's the sort of rarely used feature
that frequently regresses on obscure architectures/OSs without anyone
noticing), and also confirmed that it is actually a significant size win
for their configuration.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=33466
Reviewed-by: Colin Walters <walters@verbum.org>
On Linux, we previously called openlog() (with different options!) while
initializing SELinux; leave SELinux messages as LOG_USER|LOG_INFO in case
anyone was relying on that, but let the rest of our log messages come
out as LOG_DAEMON.
Also enable LOG_PERROR (copy syslog messages to stderr) unconditionally;
we can make this an autoconf check if anyone's pet Unix doesn't have
LOG_PERROR.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=35358
Reviewed-by: Colin Walters <walters@verbum.org>
In practice, nothing copes with missing broadcast signals, so the least
we can do is make the failure mode visible.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=35358
Reviewed-by: Colin Walters <walters@verbum.org>
This is necessary to run the regression tests under valgrind (if
telling it to output to a dedicated fd), gdb, fakeroot etc.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=35173
Reviewed-by: Colin Walters <walters@verbum.org>
It's a minor security benefit, but not automatically beneficial (it
enables ASLR, but breaks prelinking, some buggy toolchains, and some gdb
versions). Distributions who know their infrastructure works well can
enable it just as easily via
./configure CFLAGS="-fPIE" LDFLAGS="-pie"
without extra support from us, and that's a generic solution applicable to
many packages.
Similarly, don't force libdbus and libdbus-internal to be PIC: libtool
knows better than we do whether that's necessary/beneficial on a
particular platform.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=16621
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=27215
Bug-NB: NB#171940
Reviewed-by: Colin Walters <walters@verbum.org>
Also remove some pointless indirection (extra_tests etc.), don't install
the unused directory $(libexecdir)/dbus-1 (we actually install the
launch helper directly into $(libexecdir)), and allow dbus_daemondir to be
set on Windows rather than forcing dbus-daemon to be installed to
$(bindir) there.
dbus_daemon_execdir has to contain "exec" so that the dbus-daemon will be
installed by "make install-exec" and not "make install-data".
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=14512
Reviewed-by: Colin Walters <walters@verbum.org>
In commit:
075945f6 (John (J5) Palmieri 2005-07-14 20:44:15 +0000
some code was added to compare services by Exec key. The changelog is
not pariticularly informative as to why this was added. But while
debugging other code, we noticed this.
Comparing by Exec key is not in the specification, and triggered a
problem where while converting services to use systemd for activation,
a change was made to use Exec=/bin/false and simply rely on systemd
to activate.
While I think it was broken for the service files to be changed
to Exec=/bin/false, we shouldn't be doing something here that's
not in the spec either.
Reviewed-by: Will Thompson <will.thompson@collabora.co.uk>
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=35750
On Windows Systems ELEMENT_TYPE is already defined
in Winioctl.h this header is included indirectly
in dbus-sysdeps.h. By avoiding the use of the Name
ELEMENT_TYPE it is ensured that config-parser-common.h
can be included together with dbus-sysdeps.h
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Previously, Introspect was just special-cased.
This could allow us to have a conditionally-compiled debugging interface,
for instance.
Reviewed-by: Colin Walters <walters@verbum.org>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=33757
The default configuration has hardcoded 2048 complete connections,
and 64 incomplete. We need at least that number of file descriptors,
plus some for internal use.
In the bus, attempt to call setrlimit() before we drop privileges.
Practically speaking for this means the system bus gets it, the
session bus doesn't.
http://bugs.freedesktop.org/show_bug.cgi?id=33474
Reviewed-By: Simon McVittie <simon.mcvittie@collabora.co.uk>
This is more graceful than failing entirely (our previous behaviour),
but more visible than ignoring it completely (the previous behaviour
patched in by Debian and derivatives).
Based on a patch from Daniel Silverstone back in 2004, which was meant
to be temporary; I think it makes sense to change this permanently,
since files in *.d are typically supplied by other packages, whose bugs
shouldn't be able to bring down dbus-daemon.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=19186
Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=230231
Reviewed-by: Colin Walters <walters@verbum.org>
