2 Commits

• refactor: make bubblewrap the default Linux sandbox (#13996)

  ## Summary
  - make bubblewrap the default Linux sandbox and keep
  `use_legacy_landlock` as the only override
  - remove `use_linux_sandbox_bwrap` from feature, config, schema, and
  docs surfaces
  - update Linux sandbox selection, CLI/config plumbing, and related
  tests/docs to match the new default
  - fold in the follow-up CI fixes for request-permissions responses and
  Linux read-only sandbox error text

  viyatb-oai · 2026-03-11 23:31:18 -07:00
  04892b4ceb
• feat(linux-sandbox): implement proxy-only egress via TCP-UDS-TCP bridge (#11293)

  ## Summary
  - Implement Linux proxy-only routing in `codex-rs/linux-sandbox` with a
  two-stage bridge: host namespace `loopback TCP proxy endpoint -> UDS`,
  then bwrap netns `loopback TCP listener -> host UDS`.
  - Add hidden `--proxy-route-spec` plumbing for outer-to-inner stage
  handoff.
  - Fail closed in proxy mode when no valid loopback proxy endpoints can
  be routed.
  - Introduce explicit network seccomp modes: `Restricted` (legacy
  restricted networking) and `ProxyRouted` (allow INET/INET6 for routed
  proxy access, deny `AF_UNIX` and `socketpair`).
  - Enforce that proxy bridge/routing is bwrap-only by validating
  `--apply-seccomp-then-exec` requires `--use-bwrap-sandbox`.
  - Keep landlock-only flows unchanged (no proxy bridge behavior outside
  bwrap).
  
  ---------
  
  Co-authored-by: Codex <199175422+chatgpt-codex-connector[bot]@users.noreply.github.com>

  viyatb-oai · 2026-02-21 18:16:34 +00:00
  b3202cbd58