e1447c3009
### Motivation - Landlock alone cannot prevent writes to sensitive in-repo files like `.git/` when the repo root is writable, so explicit mount restrictions are required for those paths. - The sandbox must set up any mounts before calling Landlock so Landlock can still be applied afterwards and the two mechanisms compose correctly. ### Description - Add a new `linux-sandbox` helper `apply_read_only_mounts` in `linux-sandbox/src/mounts.rs` that: unshares namespaces, maps uids/gids when required, makes mounts private, bind-mounts targets, and remounts them read-only. - Wire the mount step into the sandbox flow by calling `apply_read_only_mounts(...)` before network/seccomp and before applying Landlock rules in `linux-sandbox/src/landlock.rs`. |
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codex-protocol
This crate defines the "types" for the protocol used by Codex CLI, which includes both "internal types" for communication between codex-core and codex-tui, as well as "external types" used with codex app-server.
This crate should have minimal dependencies.
Ideally, we should avoid "material business logic" in this crate, as we can always introduce Ext-style traits to add functionality to types in other crates.