Add '--usb' and '--nousb' to the FlatpakContext option group.
Map these parameters to either the enumarable list, or the hidden
list, of a new "USB Devices" group in the metadata key file. It looks
like this:
```
[USB Devices]
hidden-devices=cls:01:*;
enumerable-devices=vnd:0fd9+dev:0080;vnd:0fd9+dev:0080;
```
Flatpak itself does not use these values, they're meant to be used
by e.g. XDG Desktop Portal to filter which devices the app can see
through the USB portal.
Hidden devices must always take precedence over enumerable devices.
This is heavily inspired by https://github.com/flatpak/flatpak/pull/4083
Co-Authored-By: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Co-Authored-By: Ryan Gonzalez <rymg19@gmail.com>
Signed-off-by: Hubert Figuière <hub@figuiere.net>
For historical reasons g_qsort_with_data() "only" works with up to 2**31
items, so it won't necessarily work for pathologically large arrays
and therefore is deprecated.
One advantage of g_qsort_with_data() and its replacement g_sort_array()
is that GLib guarantees that they are a stable sort (will not permute
items that already compare equal), which is not a guarantee for glibc's
qsort() and qsort_r(). However, I don't think it's actually relevant
whether we are doing a stable sort in any of these places: most of the
time we are sorting an array of unique items (often the keys of a hash
table, which are necessarily unique), therefore the compare function
will not compare equal in any case.
Another advantage of the GLib functions is that they are portable,
unlike qsort_r(). However, Flatpak is Linux-only, so we can freely use
useful functions like qsort_r().
Signed-off-by: Simon McVittie <smcv@collabora.com>
KDE krunner supports DBus plugins that allow search completion
comparable to the already supported gnome-shell searchprovider.
Exporting the contents of the runner directory enables us to enable
search results from within flatpack applications.
In context of the previous commit, this allows Flatpak apps to spawn
subsandboxes with `--a11y-own-name=DBUS_NAME`, where `DBUS_NAME` must
have the app id as prefix.
For example, `org.webkitgtk.MiniBrowser` would be able to spawn a Web
process using the Flatpak portal, and by passing
`org.webkitgtk.MiniBrowser.Sandboxed.WebProcess0`, this Web process
would be able to own this name in the a11y bus. This allows the Web
process and the main WebKit process to connect their a11y trees across
sandboxes.
These are passed to non-const-correct APIs which still need a cast, but
at least we can declare the array in a way that reduces mistakes.
Signed-off-by: Simon McVittie <smcv@collabora.com>
This adds three "positive" tests: the common case --persist=.persist, the
deprecated spelling --persist=/.persist, and the less common special case
--persist=. as used by Steam.
It also adds "negative" tests for CVE-2024-42472: if the --persist
directory is a symbolic link or contains path segment "..", we want that
to be rejected.
Reproduces: CVE-2024-42472, GHSA-7hgv-f2j8-xw87
[smcv: Add "positive" tests]
[smcv: Exercise --persist=..]
[smcv: Assert that --persist with a symlink produces expected message]
Co-authored-by: Simon McVittie <smcv@collabora.com>
Signed-off-by: Simon McVittie <smcv@collabora.com>
There are two places where we deliberately leak some memory. There are
some cases which look like leaks in libostree but it's not impossible
that we made a mistake in flatpak.
Two other cases seem like issues in flatpak that I couldn't figure out.
I was trying to get the `flatpak` for Chimera Linux template to run
tests. However, due to Chimera Linux using core utilities based on
FreeBSD's, some stuff used in the test shell scripts didn't work there
and caused issues. While I eventually gave that endeavour up, I wanted
to upstream the upstreamable changes I had anyway.
Arguably bwrap should exit with status 127 if it can't find the
executable, but right now it exits 1, so we accept any nonzero status.
The implementation was correct, but the comment was wrong.
Fixes: 84984e49 "test-run: Add a reproducer for CVE-2024-32462"
Signed-off-by: Simon McVittie <smcv@collabora.com>
Otherwise, tests for OCI and the update portal fail with:
/usr/libexec/installed-tests/Flatpak/libtest.sh: line 611: FUSERMOUNT: unbound variable
Fixes: 2cb17b4e "Do not hard-code fusermount, add option or auto-detect instead"
Signed-off-by: Simon McVittie <smcv@collabora.com>
Add a basic test for the extraction of appdata name and summary values
that are displayed in the flatpak UI. Also use the new developer name
syntax in the test app. This tests the fix made in previous commit.
The hard-coding is not appropriate. According to libfuse 3.0.0 release
notes: "The fusermount and mount.fuse binaries have been renamed to
fusermount3 and mount.fuse3 to allow co-installation of libfuse 2.x
and 3.x". Some distributions seem to install a symlink, but this is
not upstream's default behavior.
In addition, fusermount might be provided from non-distro sources. So
a build-time option takes precedence over auto-detection logic.
Fixes#5104Fixes#5694
As discussed in #5695, I think we're reaching a point where removing
Autotools is preferable to fixing it.
1.14.x continues to use Autotools, so platforms whose Meson version is
too old can stay on that branch until it becomes unsupported. We have
a very conservative Meson dependency (Ubuntu 20.04).
Signed-off-by: Simon McVittie <smcv@collabora.com>
flatpak_deploy_data_get_subpaths() returns a new array (of unowned
strings) and flatpak_dir_new_deploy_data() doesn't take ownership.
Signed-off-by: Simon McVittie <smcv@collabora.com>
g_option_context_add_group() takes ownership of the group that it's
given, so we can't also free it.
Fixes: fab0f8ed "test-context: Exercise some corner cases for merging filesystems"
Signed-off-by: Simon McVittie <smcv@collabora.com>
1. For security context creation, only relies on WAYLAND_DISPLAY, do not
use WAYLAND_SOCKET since the file descriptor defined by WAYLAND_SOCKET
can be only consumed once.
2. Due to the incompatiblity between WAYLAND_SOCKET and the security
context, add a new permission --socket=inherit-wayland-socket
to limit the usage of WAYLAND_SOCKET to an opt-in feature. Only when
this flag is set, WAYLAND_SOCKET will be passed to the sandbox.
3. When WAYLAND_SOCKET is not inherited, set FD_CLOEXEC to avoid it to
be leaked the to sandbox.
Closes: #5614
Before the previous commit, this would normally work, but would fail if
we had FLATPAK_TEST_COVERAGE=1 in the environment.
Signed-off-by: Simon McVittie <smcv@collabora.com>
In order to maintain a system over time update automatically removes any EOL runtimes that are unused.
This extends it to also remove any autopruned refs. In practice this means removing no longer used driver versions as the system is updated.
Closes#5261
The tests/make-test-runtime.sh scripts sets '-e' in lieu of
implementing useful error checking, but doesn't actually check
if the programs it uses exist in the first place; and aborts
silently when they're not available.
It is more useful to warn about them, and stop execution earlier.
This leaves some leftover files, but arguably that's better than
leaving leftover files AND people scratching their heads.
Warn about missing required programs.
Related: https://github.com/flatpak/flatpak/issues/5020
These functions are to do with being an interactive, terminal-oriented
CLI/TUI, so it would be inappropriate for library code in libflatpak
to call them, and it would also be inappropriate for daemons like the
session and system helpers to call them.
In fact all calls to these were already isolated to app/, so we can
easily move the terminal-related utilities themselves into app/.
As well as shrinking libflatpak, this makes it obvious that the system
helper does not actually need to call flatpak_disable_fancy_output():
it does not link any code that would be affected by that API call.
Signed-off-by: Simon McVittie <smcv@collabora.com>
Use the real GLib function if we can, and resync the backport with the
version in GLib 2.76.2: use a compatibility replacement for
G_NUMBER_PARSER_ERROR so that it can be textually identical to the
version in GLib, and revert Flatpak changes to the whitespace.
The only functional change is that if the function fails, we'll raise
G_NUMBER_PARSER_ERROR_INVALID if GLib is new enough.
Signed-off-by: Simon McVittie <smcv@collabora.com>
