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path: root/internal/app/seal.go
AgeCommit message (Collapse)Author
2024-12-18fipc: export config structOphestra Umiker
Also store full config as part of state. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-12-06app: integrate security-context-v1Ophestra Umiker
Should be able to get rid of XDG_RUNTIME_DIR share after this. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-19app: validate usernameOphestra Umiker
This value is used for passwd generation. Bad input can cause very confusing issues. This is not a security issue, however validation will improve user experience. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-18app: alternative inner home pathOphestra Umiker
Support binding home to an alternative path in the mount namespace. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-16app: integrate fsuOphestra Umiker
This removes the dependency on external user switchers like sudo/machinectl and decouples fortify user ids from the passwd database. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-09app/config: rename map_real_uid from use_real_uidOphestra Umiker
This option only changes mapped uid in the user namespace. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-04app: separate auto etc from permissive defaultsOphestra Umiker
Populating /etc with symlinks is quite useful even outside the permissive defaults usage pattern. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-04app: support mapping target uid as privileged uid in sandboxOphestra Umiker
Chromium's D-Bus client implementation refuses to work when its getuid call returns a different value than what the D-Bus server is running as. The reason behind this is not fully understood, but this workaround is implemented to support chromium and electron apps. This is not used by default since it has many side effects that break many other programs, like SSH on NixOS. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-04app: format mapped uid instead of real uidOphestra Umiker
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-03system/dbus: buffer xdg-dbus-proxy messagesOphestra Umiker
Pointing xdg-dbus-proxy to stdout/stderr makes a huge mess. This change enables app to neatly print out prefixed xdg-dbus-proxy messages after output is resumed. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-02cmd: shim and init into separate binariesOphestra Umiker
This change also fixes a deadlock when shim fails to connect and complete the setup. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-27system: move sd_booted implementation to os abstractionOphestra Umiker
This implements lazy loading of the systemd marker (they are not accessed in init and shim) and ensures consistent behaviour when running with a stub. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-25app/seal: symlink /etc entries in permissive defaultOphestra Umiker
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>
2024-10-23internal: wrap calls to os standard library functionsOphestra Umiker
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>
2024-10-21fmsg: produce all output through fmsgOphestra Umiker
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>
2024-10-21app: move wayland mediation to shim packageOphestra Umiker
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>
2024-10-20migrate to git.ophivana.moe/security/fortifyOphestra Umiker
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-20app: move app ID to app structOphestra Umiker
App ID is inherent to App, and it makes no sense to generate it as part of the app sealing process. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-18state: store launch method instead of launcher pathOphestra Umiker
Launcher path is constant for each launch method on the same system. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-16system: move enablements from state packageOphestra Umiker
This removes the unnecessary import of the state package. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-16app: port app to use the system packageOphestra Umiker
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>
2024-10-15app: filter /tmp from permissive defaultOphestra Umiker
Tmpdir is bind mounted over further along in execution so there is no point sharing it here. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-15helper/bwrap: ordered filesystem argsOphestra Umiker
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>
2024-10-13app: generate and replace passwd and group filesOphestra Umiker
This ensures libc functions get correct user information. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-13app/seal: skip /mnt in permissive defaultOphestra Umiker
This directory usually contains temporarily mounted stuff and shouldn't get into the sandbox. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-12app/seal: allow GPU access in permissive default when either X11/Wayland is ↵Ophestra Umiker
enabled Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-12app: filesystem struct that maps to all bwrap bind optionsOphestra Umiker
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-11app: integrate bwrap into environment setupOphestra Umiker
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-11app: migrate to new shim implementationOphestra Umiker
Both machinectl and sudo launch methods launch shim as shim is now responsible for setting up the sandbox. Various app structures are adapted to accommodate bwrap configuration and mediated wayland access. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-10app: remove bubblewrap launch methodOphestra Umiker
Launch methods serve the primary purpose of setting UID in the init namespace, which bubblewrap does not do. Furthermore, all applications will start within a bubblewrap sandbox once it has been implemented. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-09-22app: clean up interactions and handle all application state and setup/teardownOphestra Umiker
There was an earlier attempt of cleaning up the app package however it ended up creating even more of a mess and the code structure largely still looked like Ego with state setup scattered everywhere and a bunch of ugly hacks had to be implemented to keep track of all of them. In this commit the entire app package is rewritten to track everything that has to do with an app in one thread safe value. In anticipation of the client/server split also made changes: - Console messages are cleaned up to be consistent - State tracking is fully rewritten to be cleaner and usable for multiple process and client/server - Encapsulate errors to easier identify type of action causing the error as well as additional info - System-level setup operations is grouped in a way that can be collectively committed/reverted and gracefully handles errors returned by each operation - Resource sharing is made more fine-grained with PID-scoped resources whenever possible, a few remnants (X11, Wayland, PulseAudio) will be addressed when a generic proxy is available - Application setup takes a JSON-friendly config struct and deterministically generates system setup operations Signed-off-by: Ophestra Umiker <cat@ophivana.moe>