The code was checking whether the signature provided by the blob was a
valid D-Bus signature — but that’s a superset of a valid GVariant type
string, since a D-Bus signature is zero or more complete types. A
GVariant type string is exactly one complete type.
This meant that a D-Bus message with a header field containing a variant
with an empty type signature (for example) could cause a critical
warning in the code parsing it.
Fix that by checking whether the string is a valid type string too.
Unit test included.
oss-fuzz#9810
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Parsing a D-Bus message with the signature field in the message header
of type other than ‘g’ (GVariant type signature) would cause a critical
warning. Instead, we should return a runtime error.
Includes a test.
oss-fuzz#9825
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Currently, readlink() is used only 12 times when expanding symlinks.
However, kernel uses 40 for this purpose and it is defined as MAXSYMLINKS.
Use that constant if available, or 40. See:
https://github.com/torvalds/linux/include/linux/namei.h.
find_mountpoint_for() uses current file in case of error, because
get_parent() returns NULL for error, but also if parent doesn't exist.
Return "." from get_parent() if parent doesn't exist in order to
differentiate the error state.
Test symlink expansion in find_mountpoint_for() function over
_g_local_file_find_topdir_for(). find_mount_for() is crucial for many
of glocalfile.c functionality (e.g. to determine correct trash location)
and symlink expansion has to work properly.
https://gitlab.gnome.org/GNOME/glib/issues/1522
G_FILE_ATTRIBUTE_ACCESS_CAN_TRASH can be set to a wrong value if
its parent dir is a symlink. This is because the find_mountpoint_for()
function tries to find mountpoint for a filepath and expands symlinks
only in parent dirs. But in this case the path is already parent dir
and needs to be expanded first...
Closes: https://gitlab.gnome.org/GNOME/glib/issues/1522
This is the most degenerate possible test but it does exercise this code
path.
(Tweaked by Philip Withnall <withnall@endlessm.com> to also add the flag
to the autotools build.)
gdbus-peer: Make sure to not include objectmanager-gen.c source
See merge request GNOME/glib!416
(cherry picked from commit 4d48e020278b6be64ba84be7b8ab388f5ff2b358)
7c70bef8 gdbus-peer: Make sure to not include objectmanager-gen.c source
Fedora is using https://fedoraproject.org/wiki/Changes/Annobin
to try to ensure that all objects are built with hardening flags.
Pass down `CFLAGS` to ensure the SystemTap objects use them.
libmount-based implementation doesn't filter out mounts with device
path that was repeated as it is done with mntent-based implementation.
It causes problems to our volume monitors which are not able to handle
multiple mounts for one device path properly without additional API.
Let's filter out the same mounts as are filtered out with mntent-based
implementation.
This is intended only for stable branches to prevent current issues.
https://gitlab.gnome.org/GNOME/glib/issues/1271
This avoids the convenience library being treated as though it was
an installed static library (objects not included in the dependent
static library, and convenience library being listed in the pkg-config
metadata), both of which would make static linking impossible.
This is a workaround for meson not having
https://github.com/mesonbuild/meson/pull/3939 merged yet.
Fixes: https://gitlab.gnome.org/GNOME/glib/issues/1536
Signed-off-by: Simon McVittie <smcv@collabora.com>
This makes it easier to debug test failures, by ensuring that g_debug()
and g_test_message() are printed as TAP diagnostics.
Fixes: https://gitlab.gnome.org/GNOME/glib/issues/1528
Signed-off-by: Simon McVittie <smcv@collabora.com>
None of these files starts with a #! line, and they are not native
binary executables, so if a user attempts to execute them as a program,
Unix shells will run them as /bin/sh scripts. This is not going to end
well, since none of them are shell scripts (the gio bash completion
is for bash, which is not a lowest-common-denominator POSIX shell, and
in any case is designed to be sourced rather than executed).
Fixes: #1539
Signed-off-by: Simon McVittie <smcv@collabora.com>
These keep on taking just longer than 30s on my local machine when run
in parallel with the rest of the tests (i.e. with `ninja test`). Testing
them individually, they do terminate correctly.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
G_FILE_ATTRIBUTE_DOS_IS_MOUNTPOINT allows mountpoints
(NTFS reparse points with IO_REPARSE_TAG_MOUNT_POINT tag) to
be told apart from symlinks (NTFS reparse points with
IO_REPARSE_TAG_SYMLINK tag), even though both are reported
by glib as "symlinks".
G_FILE_ATTRIBUTE_DOS_REPARSE_POINT_TAG allows the exact
reparse tag value to be obtained by the user. This way
even more exotic reparse points can be identified and
handled by the user (glib itself currently has no code
to work with any reparse points that are not symlinks
or mountpoints).
1) Remove the non-Windows-only condition for subdir('tests').
2) Add libiphlpapi, libws2_32 and libsecur32 deps, needed for W32 tests.
3) Remove the -no-undefined argument (gcc doesn't understand it,
it *does* understand -Wl,-no-undefined; either way, the test
compiles without this argument just fine; maybe meson adds it
by itself - you can hardly build shared modules without it).
4) Add or fix a number of includes
5) Disable gdbus-objectmanager tests when building with MSVC
(right now these tests don't work on Windows anyway, so the fact
that MSVC can't even build them properly is irrelevant;
most likely gdbus-codegen needs changes to put _GLIB_EXTERN
before each function)
g_icon_new_for_string() docs states that it should return a single name
when created with a single name. I add a second condition to this case:
the themed icon must not include default fallbacks (i.e. it must not
have been created with `g_themed_icon_new_with_default_fallbacks()`).
Otherwise the return value of `g_icon_new_for_string()` would not
recreate the same icon list when passed to `g_icon_new_for_string()`
(which would be another documentation inconsistency).
g_icon_new_for_string() is now back to old behavior for this specific
case.
I also revert the unit test for this case, and add a new unit test when
using g_themed_icon_new_with_default_fallbacks() with a single name as
well.
Closes#1513.
`read_netlink_messages()` is the callback attached to the netlink socket
(G_IO_IN). It calls `g_socket_receive_message()`. There is a race
condition that if the socket is closed while there is a pending call, we
will try to receive on a closed socket, which fails.
To avoid this, we switch the order of the operations around: first
destroy the source and then close the socket.
This is not a correct way to check if `g_socket_new_from_fd()` failed.
Instead just see if it returned `NULL` itself.
This was preventing the netlink monitor from being initialised.
Closes#1518
This is a speculative fix for epiphany#533, which we think might be
caused by xdg-desktop-portal not ever being started. This service is
started on-demand, not automatically.
The existing code was generating code with undefined results that modern compilers warn about:
accounts-generated.c:204:23: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
(GDBusArgInfo **) &_accounts_accounts_method_info_list_cached_users_OUT_ARG_pointers,
The ::network-changed signal is documented to indicate any change in
network configuration, which doesn't necessarily imply a property
change - additional services becoming available after connecting to
a VPN comes to mind for instance.
In order to match the "native" network monitor's behavior, always
emit the signal when it's in response to the 'changed' D-Bus signal.
Also emit the signal unconditionally when loading the initial property
values, to allow clients to differentiate between "offline" meaning
"offline" and "offline" meaning "uninitialized".
This reverts commit 3c1902fcf9ff9d0fb162d6ea71ec94c253687f84.
This was accidentally re-added from an old version of the branch before
!265 was merged. It should not have been re-added.
Rearrange the code so we try version 3 first,
falling back to version 2 and then version 1.
We still do a construct-time check to ensure
that we work with unsupported versions.
Note that this also takes care of setting the
initial property values in the version 1 case.
