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codex/codex-rs/windows-sandbox-rs
Michael BolinandGitHub 729bdf3c8d windows-sandbox: send permission profiles to elevated runner (#22918)
## Why

This is the next PR in the Windows sandbox migration stack after #22896.
The bottom PR introduces a Windows-local resolved permissions helper
while existing callers still start from legacy `SandboxPolicy`. This PR
moves the elevated runner IPC boundary to `PermissionProfile`, which
makes the direction of the stack visible without changing the public
core call sites yet.

Because that changes the CLI-to-command-runner message shape, the framed
IPC protocol version is bumped in the same PR so the boundary change is
explicit.

## What changed

- Replaced elevated IPC `policy_json_or_preset`/`sandbox_policy_cwd`
fields with `permission_profile`/`permission_profile_cwd`.
- Bumped the elevated command-runner IPC protocol to
`IPC_PROTOCOL_VERSION = 2` and switched parent/runner frames to use the
shared constant.
- Converted the parent elevated paths from the parsed legacy policy into
a materialized `PermissionProfile` before sending the runner request.
- Added `WindowsSandboxTokenMode` resolution for managed
`PermissionProfile` values and made the runner choose read-only vs
writable-root capability tokens from that resolved profile.
- Rejected disabled, external, unrestricted, and full-disk-write
profiles before token selection.
- Added IPC JSON coverage for tagged `PermissionProfile` payloads and
token-mode unit coverage for the resolved permission helper.

## Verification

- `cargo test -p codex-windows-sandbox`
- `just fix -p codex-windows-sandbox`
- `cargo check -p codex-windows-sandbox --target x86_64-pc-windows-msvc
--tests` was attempted locally but blocked before crate type-checking
because the macOS compiler environment lacks Windows C headers such as
`windows.h` and `assert.h`; GitHub Windows CI is the required
verification for the runner path.

---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/22918).
* #23715
* #23714
* #23167
* #22923
* __->__ #22918
2026-05-20 12:41:06 -07:00
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