Fortify overrides /etc/passwd and /etc/group in the sandbox. Bind mounting /etc results in them being replaced when the passwd database is updated on host.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
This is already supported by the underlying bwrap helper. This change exposes access to it in Config.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
This prevents a hang when setup faults but the shim keeps waiting on the socket. Setup is automatically aborted when the shim is killed.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
There are scenarios where XDG_RUNTIME_DIR is set to an empty string or garbage. This check tries to ensure reasonable behaviour in most of those cases.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
This change helps tests stub out and simulate OS behaviour during the sealing process. This also removes dependency on XDG_RUNTIME_DIR as the internal.System implementation provided to App provides a compat directory inside the tmpdir-based share when XDG_RUNTIME_DIR is unavailable.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
Shim setup listens on a socket in the process share, if shim setup hasn't happened on exit revert will fail. This change makes sure shim setup is aborted on a doomed launch.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
The behaviour of print functions from package fmt is not thread safe. Functions provided by fmsg wrap around Logger methods. This makes prefix much cleaner and makes it easy to deal with future changes to logging.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
Values used in the Wayland mediation implementation is stored in various struct fields strewn across multiple app structs and checks are messy and confusing. This commit unifies them into a single struct and access it using much better looking methods.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
shareTmpdirChild happened to request an ephemeral dir within SharePath and was called before shareRuntime which ensures that path. This commit moves SharePath initialisation to shareSystem and moves shareTmpdirChild into ShareSystem. Further cleanup and tests are desperately needed for the app package but for now this fix will have to do.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
Invalid enablement is only caused by bad API usage, however panicking on the spot leaves behind messy state that has to be manually cleaned up.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
Wait for 5 seconds before printing a message and exiting after picking up the initial process's wait status. This also kills any lingering processes.This behaviour is helpful for applications launched without a terminal attached.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
This commit does away with almost all baggage left over from the Ego port. Error wrapping also got simplified. All API changes happens to be internal which means no changes to main except renaming of the BaseError type.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
This improves maintainability and extensibility of system operations, makes writing tests for them possible, and operations now apply and revert in order, instead of being bunched up into their own categories.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
These values are useful during sandbox setup and exporting them makes more sense than storing them twice.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
The argument builder was written based on the incorrect assumption that bwrap arguments are unordered. The argument builder is replaced in this commit to correct that mistake.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
Bubblewrap as init is a bit awkward and don't support a few setup actions fortify will need, such as starting/supervising nscd.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
There is no good reason to run fortify as root and desktop environments typically do not like that either. This check prevents confusion for new users who might mistakenly run it as root or set the setuid bit.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
Bwrap argument order determines the order their corresponding actions are performed. This allows generic arguments like tmpfs to the end of the stream to override bind mounts.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
Ophestra Umiker