We can't safely type-pun from e.g. char * to DBusBasicValue *, because
the latter has higher alignment requirements. Instead, create an
explicit pointer for each case.
Also, we mark each one volatile to sidestep strict aliasing issues, for
the future when we turn on strict aliasing support.
Original patch and review from Jay Estabrook <jay.estabrook@hp.com>.
The AC_CANONICAL_TARGET macro and the $target_os variables are used for the
target of compilers and other code-generation tools, and should not be used
during cross-compile of generic software. Replace them with
AC_CANONICAL_HOST and $host_os instead, as they should have been from the
start.
For a breakdown of what host, build and target machines are, please see
http://blog.flameeyes.eu/s/canonical-target .
Important compiler warnings were being lost in the noise from warnings
we know about but aren't problems, and moreover made using -Werror
difficult. Now we expect *all* developers and testers to be using
-Werror.
The requested_reply field is necessary in send denials too because
it's used in the policy language. The connection loginfo lack in
"would deny" was just an oversight.
Extend the current security logs with even more relevant
information than just the message content. This requires
some utility code to look up and cache (as a string)
the data such as the uid/pid/command when a connection is
authenticated.
Our previous fix went too far towards lockdown; many things rely
on signals to work, and there's no really good reason to restrict
which signals can be emitted on the bus because we can't tie
them to a particular sender.
The previous rule <allow send_requested_reply="true"/> was actually
applied to all messages, even if they weren't a reply. This meant
that in fact the default DBus policy was effectively allow, rather
than deny as claimed.
This fix ensures that the above rule only applies to actual reply
messages.
Signed-off-by: Colin Walters <walters@verbum.org>
* bus/bus.c: Set allow_anonymous if specified from
parser.
* bus/config-parser.c: Parse it.
* bus/config-parser-common.h: Declare it.
Signed-off-by: Colin Walters <walters@verbum.org>
* dbus/dbus-sysdeps-unix.c: Save errno across cleanup
and use it for errors to ensure we display the right
error message.
Signed-off-by: Colin Walters <walters@verbum.org>
* dbus/dbus-sysdeps-unix.c:
* dbus/dbus-sysdeps-util-unix.c: Cast return
from sysconf temporarily so we actually see
-1.
Signed-off-by: Colin Walters <walters@verbum.org>
Dbus is doing atomic file updates by copying them, changing
the copy, and re-naming them. However, it does not synchronize
the file before re-naming, which results in corruption in
case of unclean reboots. The reason for this is that file-systems
have write-back cache and they postpone writing data to the media.
This patch adds the missed fsync() for the Unix part. I do
not have windows so cannot provide a windows port fix.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Colin Walters <walters@verbum.org>
* dbus/dbus-marshal-recursive.c: A stray comma
between two string literals caused incorrect
output and a compiler warning.
Signed-off-by: Colin Walters <walters@verbum.org>
Patch originally from Noèl Köthe.
Modified by Colin Walters <walters@verbum.org>
* dbus/dbus-sysdeps-unix.c, dbus/dbus-sysdeps-unix-utils.c:
Use a while() loop to reallocate buffer if we get ERANGE
return. This fixes the case where a user is in a large
number of groups.
* test/name-test/test-privserver.c (filter_session_message, main),
* test/name-test/test-privserver-client.c (open_shutdown_private_connection):
Replace TestServer with PrivServer to match the service definition files.
Commit 91306ef938 introduced
two memory leaks on OOM error paths. In one case the
environment string array wasn't getting freed, and in the
other case it was getting freed with dbus_free instead of
dbus_free_string_array.
There have been a number of patches in the past try to key system
versus session bus policy off of the message bus type, when the
policy should be distinguished from more fine-grained options in the
individulal policy files. Hopefully, this man page update will make
that more clear.
It adjusts the environment of activated bus clients.
This is important for session managers that get started
after the session bus daemon and want to influence the
environment of desktop services that are started by the
bus.
We now keep the environment in a hash table member of the
activation object and provide a method
bus_activation_set_environment_variable to modify the
hash table. This hash table is seeded initially with the
environment of the bus daemon itself.
Previously, we'd always call execv() and unconditionally use
the environment of the parent. Now we call execve() with the
passed in environment. For compatibility, we detect if
the passed in environment is NULL and for that case, use the
environment from the parent instead.
