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core-agent-ide/codex-rs/linux-sandbox
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viyatb-oai 923f931121
build(linux-sandbox): always compile vendored bubblewrap on Linux; remove CODEX_BWRAP_ENABLE_FFI (#11498) 
## Summary
This PR removes the temporary `CODEX_BWRAP_ENABLE_FFI` flag and makes
Linux builds always compile vendored bubblewrap support for
`codex-linux-sandbox`.

## Changes
- Removed `CODEX_BWRAP_ENABLE_FFI` gating from
`codex-rs/linux-sandbox/build.rs`.
- Linux builds now fail fast if vendored bubblewrap compilation fails
(instead of warning and continuing).
- Updated fallback/help text in
`codex-rs/linux-sandbox/src/vendored_bwrap.rs` to remove references to
`CODEX_BWRAP_ENABLE_FFI`.
- Removed `CODEX_BWRAP_ENABLE_FFI` env wiring from:
  - `.github/workflows/rust-ci.yml`
  - `.github/workflows/bazel.yml`
  - `.github/workflows/rust-release.yml`

---------

Co-authored-by: David Zbarsky <zbarsky@openai.com>
2026-02-11 21:30:41 -08:00
..
src build(linux-sandbox): always compile vendored bubblewrap on Linux; remove CODEX_BWRAP_ENABLE_FFI (#11498) 2026-02-11 21:30:41 -08:00
tests feat: make sandbox read access configurable with ReadOnlyAccess (#11387) 2026-02-11 18:31:14 -08:00
BUILD.bazel build(linux-sandbox): always compile vendored bubblewrap on Linux; remove CODEX_BWRAP_ENABLE_FFI (#11498) 2026-02-11 21:30:41 -08:00
build.rs build(linux-sandbox): always compile vendored bubblewrap on Linux; remove CODEX_BWRAP_ENABLE_FFI (#11498) 2026-02-11 21:30:41 -08:00
Cargo.toml feat(linux-sandbox): add bwrap support (#9938) 2026-02-04 11:13:17 -08:00
config.h build(linux-sandbox): always compile vendored bubblewrap on Linux; remove CODEX_BWRAP_ENABLE_FFI (#11498) 2026-02-11 21:30:41 -08:00
README.md feat(sandbox): enforce proxy-aware network routing in sandbox (#11113) 2026-02-10 07:44:21 +00:00

README.md

codex-linux-sandbox

This crate is responsible for producing:

  • a codex-linux-sandbox standalone executable for Linux that is bundled with the Node.js version of the Codex CLI
  • a lib crate that exposes the business logic of the executable as run_main() so that
    • the codex-exec CLI can check if its arg0 is codex-linux-sandbox and, if so, execute as if it were codex-linux-sandbox
    • this should also be true of the codex multitool CLI

On Linux, the bubblewrap pipeline uses the vendored bubblewrap path compiled into this binary.

Current Behavior

  • Legacy Landlock + mount protections remain available as the legacy pipeline.
  • The bubblewrap pipeline is standardized on the vendored path.
  • During rollout, the bubblewrap pipeline is gated by the temporary feature flag use_linux_sandbox_bwrap (CLI -c alias for features.use_linux_sandbox_bwrap; legacy remains default when off).
  • When enabled, the bubblewrap pipeline applies PR_SET_NO_NEW_PRIVS and a seccomp network filter in-process.
  • When enabled, the filesystem is read-only by default via --ro-bind / /.
  • When enabled, writable roots are layered with --bind <root> <root>.
  • When enabled, protected subpaths under writable roots (for example .git, resolved gitdir:, and .codex) are re-applied as read-only via --ro-bind.
  • When enabled, symlink-in-path and non-existent protected paths inside writable roots are blocked by mounting /dev/null on the symlink or first missing component.
  • When enabled, the helper isolates the PID namespace via --unshare-pid.
  • When enabled and network is restricted without proxy routing, the helper also isolates the network namespace via --unshare-net.
  • When enabled, it mounts a fresh /proc via --proc /proc by default, but you can skip this in restrictive container environments with --no-proc.

Notes

  • The CLI surface still uses legacy names like codex debug landlock.