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16
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
  Michael BolinandGitHub
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986c60467b |
windows-sandbox: pass workspace roots to runner (#24108)
## Why #23813 switches the Windows sandbox runner path to `PermissionProfile`, but it still left one runtime anchor for resolving symbolic `:workspace_roots` entries. That is not enough once a turn has multiple effective workspace roots: exact entries and deny globs under `:workspace_roots` need to be materialized for every runtime root before the command runner chooses token mode or builds ACL plans. ## What Changed - Replaces the Windows runner/setup `permission_profile_cwd` plumbing with `workspace_roots: Vec<AbsolutePathBuf>`. - Resolves Windows-local `PermissionProfile` data with `materialize_project_roots_with_workspace_roots(...)` instead of the single-cwd helper. - Threads `Config::effective_workspace_roots()` through core execution, unified exec, TUI setup/read-grant flows, app-server setup, app-server `command/exec`, and `debug sandbox` on Windows. - Preserves those workspace roots through the zsh-fork escalation executor instead of rebuilding them from `sandbox_policy_cwd`. - Makes `ExecRequest::new(...)` and the remaining `build_exec_request(...)` helper path take `windows_sandbox_workspace_roots` explicitly so new call sites cannot silently fall back to `vec![cwd]`. - Clarifies the `debug sandbox` non-Windows comment: remaining cwd-dependent resolution still uses `sandbox_policy_cwd`, while `:workspace_roots` entries are already materialized from config roots. - Updates elevated runner IPC `SpawnRequest` to send `workspace_roots` and bumps the framed IPC protocol version to `3` for the payload shape change. - Adds Windows-local resolver coverage for expanding exact and glob `:workspace_roots` entries across multiple roots, plus core helper coverage proving explicit roots are preserved. ## Verification - `cargo check -p codex-windows-sandbox -p codex-core -p codex-tui -p codex-cli -p codex-app-server` - `cargo test -p codex-windows-sandbox` - `cargo test -p codex-core windows_sandbox` - `cargo test -p codex-core unix_escalation` - `cargo test -p codex-app-server windows_sandbox` - `cargo test -p codex-tui windows_sandbox` - `cargo test -p codex-cli debug_sandbox` - `just test -p codex-core unified_exec` - `just test -p codex-core build_exec_request_preserves_windows_workspace_roots` - `env -u CODEX_NETWORK_PROXY_ACTIVE -u CODEX_NETWORK_ALLOW_LOCAL_BINDING just test -p codex-app-server --lib command_exec` - `just test -p codex-windows-sandbox` - `just test -p codex-exec sandbox` - `just fix -p codex-core -p codex-app-server -p codex-windows-sandbox` A local macOS cross-check with `cargo check --target x86_64-pc-windows-msvc ...` did not reach crate Rust code because native dependencies require Windows SDK headers (`windows.h` / `assert.h`) in this environment; Windows CI remains the real target validation. Two local targeted filters compile but do not run assertions on macOS: `env -u CODEX_NETWORK_PROXY_ACTIVE -u CODEX_NETWORK_ALLOW_LOCAL_BINDING just test -p codex-app-server --lib command_exec_processor` matched zero tests, and `just test -p codex-linux-sandbox landlock` matched zero tests because the landlock suite is Linux-only. |
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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 |
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7c9731c9af |
Enable --deny-warnings for cargo shear (#21616)
## Summary In https://github.com/openai/codex/pull/21584, we disabled doctests for crates that lack any doctests. We can enforce that property via `cargo shear --deny-warnings`: crates that lack doctests will be flagged if doctests are enabled, and crates with doctests will be flagged if doctests are disabled. A few additional notes: - By adding `--deny-warnings`, `cargo shear` also flagged a number of modules that were not reachable at all. Some of those have been removed. - This PR removes a usage of `windows_modules!` (since `cargo shear` and `rustfmt` couldn't see through it) in favor of simple `#[cfg(target_os = "windows")]` macros. As a consequence, many of these files exhibit churn in this PR, since they weren't being formatted by `rustfmt` at all on main. - Again, to make the code more analyzable, this PR also removes some usages of `#[path = "cwd_junction.rs"]` in favor of a more standard module structure. The bin sidecar structure is still retained, but, e.g., `windows-sandbox-rs/src/bin/command_runner.rs` was moved to `windows-sandbox-rs/src/bin/command_runner/main.rs`, and so on. --------- Co-authored-by: Codex <noreply@openai.com> |
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 iceweasel-oaiandGitHub
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5d5500650b |
Fix Windows PTY teardown by preserving ConPTY ownership (#20685)
## Why On Windows, background terminals could stay visible after their shell process had already exited. The elevated runner waits for the PTY output reader to reach EOF before it sends the final exit message, but the ConPTY helper was reducing ownership down to raw handles too early. That left the pseudoconsole's borrowed pipe handles alive past teardown, so EOF never propagated and the session stayed `running`. ## What changed - change `utils/pty/src/win/conpty.rs` to hand off owned ConPTY resources instead of leaking only raw handles - make `windows-sandbox-rs/src/conpty/mod.rs` keep the pseudoconsole owner and the backing pipe handles together until teardown - update the elevated runner and the legacy unified-exec backend to keep that `ConptyInstance` alive, take only the specific pipe handles they need, and drop the owner at teardown instead of trying to close a detached pseudoconsole handle later ## Testing - desktop app in `Auto-review`: 11 x `cmd /c "ping -n 3 google.com"` all exited cleanly and did not accumulate in the UI - desktop app in `Auto-review`: 5 x `cmd /c "ping -n 30 google.com"` appeared in the UI and drained back out on their own |
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iceweasel-oaiandGitHub
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06f3b4836a |
[codex] Fix elevated Windows sandbox named-pipe access (#20270)
## Summary - add elevated-only token constructors that include the current token user SID in the restricted SID list - switch the elevated Windows command runner to use those constructors - leave the unelevated restricted-token path unchanged ## Why Windows named pipes created by tools like Ninja use the platform's default named-pipe ACL when no explicit security descriptor is provided. In the elevated sandbox, the pipe owner has access, but the write-restricted token can still fail its restricted-SID access check because the sandbox user SID was not in the restricting SID set. That causes child processes to exit successfully while Ninja never receives the expected pipe completion/close behavior and hangs. Including the elevated sandbox user's SID in the restricting SID list lets the restricted check succeed for these owner-scoped pipe objects without broadening the unelevated sandbox to the real signed-in user. ## Impact - fixes the minimal Ninja hang repro in the elevated Windows sandbox - preserves the existing unelevated sandbox behavior and write protections - keeps the change scoped to the elevated runner rather than changing shared token semantics - this does not affect file-writes for the sandbox because the sandbox users themselves do not receive any additional permissions over what the capability SIDs already have. In fact we don't even explicitly grant the sandbox user ACLs anywhere. ## Validation - `cargo build -p codex-windows-sandbox --quiet` - verified the stock `ninja.exe` minimal repro exits normally on host and in the elevated sandbox - verified the same repro still hangs in the unelevated sandbox, which is the intended scope of this change |
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iceweasel-oaiandGitHub
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cecca5ae06 |
Improve Windows process management edge cases (#19211)
## Summary Some improvements to Windows process-management issues from https://github.com/openai/codex/pull/15578 - bound the elevated runner pipe-connect handshake instead of waiting forever on blocking pipe connects - terminate the spawned runner if that handshake fails, so timeout/error paths do not leave a stray `codex-command-runner.exe` - loop on partial `WriteFile` results when forwarding stdin in the elevated runner, so input is not silently truncated - fix the concrete HANDLE/SID cleanup paths in the runner setup code - keep draining driver-backed stdout/stderr after exit until the backend closes, instead of dropping the tail after a fixed 200ms grace period - reuse `LocalSid` for SID ownership and add more explanatory comments around the ownership/concurrency-sensitive code paths ## Why The original PR fixed a lot of Windows session plumbing, but there were still a few sharp process-lifecycle edges: - some elevated runner handshakes could block forever - the new timeout path could still orphan the spawned runner process - stdin forwarding still assumed a single `WriteFile` consumed the whole buffer - a few raw HANDLE/SID error paths still leaked - driver-backed output could still lose the last chunk of stdout/stderr on slower backends ## Validation - `cargo fmt -p codex-windows-sandbox -p codex-utils-pty` - `cargo test -p codex-utils-pty` - `cargo test -p codex-windows-sandbox finish_driver_spawn` - `cargo test -p codex-windows-sandbox runner_` Ran a local test matrix of unified-exec and shell_tool tests, all passing |
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e787358f70 |
check PID of named pipe consumer (#19283)
## Why The elevated Windows command runner currently trusts the first process that connects to its parent-created named pipes. Tightening the pipe ACL already narrows who can reach that boundary, but verifying the connected client PID gives the parent one more fail-closed check: it only accepts the exact runner process it just spawned. ## What changed - validate `GetNamedPipeClientProcessId` after `ConnectNamedPipe` and reject clients whose PID does not match the spawned runner - also did some code de-duplication to route the one-shot elevated capture flow in `windows-sandbox-rs/src/elevated_impl.rs` through `spawn_runner_transport()` so both elevated codepaths use the same pipe bootstrap and PID validation Using the transport unification here also reduces duplication in the elevated Windows IPC bootstrap, so future hardening to the runner handshake only needs to land in one place. ## Validation - `cargo test -p codex-windows-sandbox` - manual testing: one-shot elevated path via `target/debug/codex.exe exec` running a randomized shell command and confirming captured output - manual testing: elevated session path via `target/debug/codex.exe -c 'windows.sandbox="elevated"' sandbox windows -- python -u -c ...` with stdin/stdout round-trips (`READY`, then `GOT:...` for two input lines) --------- Co-authored-by: viyatb-oai <viyatb@openai.com> |
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8612714aa6 |
Add Windows sandbox unified exec runtime support (#15578)
## Summary This is the runtime/foundation half of the Windows sandbox unified-exec work. - add Windows sandbox `unified_exec` session support in `windows-sandbox-rs` for both: - the legacy restricted-token backend - the elevated runner backend - extend the PTY/process runtime so driver-backed sessions can support: - stdin streaming - stdout/stderr separation - exit propagation - PTY resize hooks - add Windows sandbox runtime coverage in `codex-windows-sandbox` / `codex-utils-pty` This PR does **not** enable Windows sandbox `UnifiedExec` for product callers yet because hooking this up to app-server comes in the next PR. Windows sandbox advertising is intentionally kept aligned with `main`, so sandboxed Windows callers still fall back to `ShellCommand`. This PR isolates the runtime/session layer so it can be reviewed independently from product-surface enablement. --------- Co-authored-by: jif-oai <jif@openai.com> Co-authored-by: Codex <noreply@openai.com> |
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 pakrym-oaiandGitHub
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413c1e1fdf |
[codex] reduce module visibility (#16978)
## Summary - reduce public module visibility across Rust crates, preferring private or crate-private modules with explicit crate-root public exports - update external call sites and tests to use the intended public crate APIs instead of reaching through module trees - add the module visibility guideline to AGENTS.md ## Validation - `cargo check --workspace --all-targets --message-format=short` passed before the final fix/format pass - `just fix` completed successfully - `just fmt` completed successfully - `git diff --check` passed |
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Michael BolinandGitHub
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2e942ce830 |
ci: sync Bazel clippy lints and fix uncovered violations (#16351)
## Why Follow-up to #16345, the Bazel clippy rollout in #15955, and the cleanup pass in #16353. `cargo clippy` was enforcing the workspace deny-list from `codex-rs/Cargo.toml` because the member crates opt into `[lints] workspace = true`, but Bazel clippy was only using `rules_rust` plus `clippy.toml`. That left the Bazel lane vulnerable to drift: `clippy.toml` can tune lint behavior, but it cannot set allow/warn/deny/forbid levels. This PR now closes both sides of the follow-up. It keeps `.bazelrc` in sync with `[workspace.lints.clippy]`, and it fixes the real clippy violations that the newly-synced Windows Bazel lane surfaced once that deny-list started matching Cargo. ## What Changed - added `.github/scripts/verify_bazel_clippy_lints.py`, a Python check that parses `codex-rs/Cargo.toml` with `tomllib`, reads the Bazel `build:clippy` `clippy_flag` entries from `.bazelrc`, and reports missing, extra, or mismatched lint levels - ran that verifier from the lightweight `ci.yml` workflow so the sync check does not depend on a Rust toolchain being installed first - expanded the `.bazelrc` comment to explain the Cargo `workspace = true` linkage and why Bazel needs the deny-list duplicated explicitly - fixed the Windows-only `codex-windows-sandbox` violations that Bazel clippy reported after the sync, using the same style as #16353: inline `format!` args, method references instead of trivial closures, removed redundant clones, and replaced SID conversion `unwrap` and `expect` calls with proper errors - cleaned up the remaining cross-platform violations the Bazel lane exposed in `codex-backend-client` and `core_test_support` ## Testing Key new test introduced by this PR: `python3 .github/scripts/verify_bazel_clippy_lints.py` |
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Michael BolinandGitHub
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2ef91b7140 |
chore: move pty and windows sandbox to Rust 2024 (#15954)
## Why `codex-utils-pty` and `codex-windows-sandbox` were the remaining crates in `codex-rs` that still overrode the workspace's Rust 2024 edition. Moving them forward in a separate PR keeps the baseline edition update isolated from the follow-on Bazel clippy workflow in #15955, while making linting and formatting behavior consistent with the rest of the workspace. This PR also needs Cargo and Bazel to agree on the edition for `codex-windows-sandbox`. Without the Bazel-side sync, the experimental Bazel app-server builds fail once they compile `windows-sandbox-rs`. ## What changed - switch `codex-rs/utils/pty` and `codex-rs/windows-sandbox-rs` to `edition = "2024"` - update `codex-utils-pty` callsites and tests to use the collapsed `if let` form that Clippy expects under the new edition - fix the Rust 2024 fallout in `windows-sandbox-rs`, including the reserved `gen` identifier, `unsafe extern` requirements, and new Clippy findings that surfaced under the edition bump - keep the edition bump separate from a larger unsafe cleanup by temporarily allowing `unsafe_op_in_unsafe_fn` in the Windows entrypoint modules that now report it under Rust 2024 - update `codex-rs/windows-sandbox-rs/BUILD.bazel` to `crate_edition = "2024"` so Bazel compiles the crate with the same edition as Cargo --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/openai/codex/pull/15954). * #15976 * #15955 * __->__ #15954 |
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Michael BolinandGitHub
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fa2a2f0be9 |
Use released DotSlash package for argument-comment lint (#15199)
## Why The argument-comment lint now has a packaged DotSlash artifact from [#15198](https://github.com/openai/codex/pull/15198), so the normal repo lint path should use that released payload instead of rebuilding the lint from source every time. That keeps `just clippy` and CI aligned with the shipped artifact while preserving a separate source-build path for people actively hacking on the lint crate. The current alpha package also exposed two integration wrinkles that the repo-side prebuilt wrapper needs to smooth over: - the bundled Dylint library filename includes the host triple, for example `@nightly-2025-09-18-aarch64-apple-darwin`, and Dylint derives `RUSTUP_TOOLCHAIN` from that filename - on Windows, Dylint's driver path also expects `RUSTUP_HOME` to be present in the environment Without those adjustments, the prebuilt CI jobs fail during `cargo metadata` or driver setup. This change makes the checked-in prebuilt wrapper normalize the packaged library name to the plain `nightly-2025-09-18` channel before invoking `cargo-dylint`, and it teaches both the wrapper and the packaged runner source to infer `RUSTUP_HOME` from `rustup show home` when the environment does not already provide it. After the prebuilt Windows lint job started running successfully, it also surfaced a handful of existing anonymous literal callsites in `windows-sandbox-rs`. This PR now annotates those callsites so the new cross-platform lint job is green on the current tree. ## What Changed - checked in the current `tools/argument-comment-lint/argument-comment-lint` DotSlash manifest - kept `tools/argument-comment-lint/run.sh` as the source-build wrapper for lint development - added `tools/argument-comment-lint/run-prebuilt-linter.sh` as the normal enforcement path, using the checked-in DotSlash package and bundled `cargo-dylint` - updated `just clippy` and `just argument-comment-lint` to use the prebuilt wrapper - split `.github/workflows/rust-ci.yml` so source-package checks live in a dedicated `argument_comment_lint_package` job, while the released lint runs in an `argument_comment_lint_prebuilt` matrix on Linux, macOS, and Windows - kept the pinned `nightly-2025-09-18` toolchain install in the prebuilt CI matrix, since the prebuilt package still relies on rustup-provided toolchain components - updated `tools/argument-comment-lint/run-prebuilt-linter.sh` to normalize host-qualified nightly library filenames, keep the `rustup` shim directory ahead of direct toolchain `cargo` binaries, and export `RUSTUP_HOME` when needed for Windows Dylint driver setup - updated `tools/argument-comment-lint/src/bin/argument-comment-lint.rs` so future published DotSlash artifacts apply the same nightly-filename normalization and `RUSTUP_HOME` inference internally - fixed the remaining Windows lint violations in `codex-rs/windows-sandbox-rs` by adding the required `/*param*/` comments at the reported callsites - documented the checked-in DotSlash file, wrapper split, archive layout, nightly prerequisite, and Windows `RUSTUP_HOME` requirement in `tools/argument-comment-lint/README.md` |
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viyatb-oaiandGitHub
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d950543e65 |
feat: support restricted ReadOnlyAccess in elevated Windows sandbox (#14610)
## Summary - support legacy `ReadOnlyAccess::Restricted` on Windows in the elevated setup/runner backend - keep the unelevated restricted-token backend on the legacy full-read model only, and fail closed for restricted read-only policies there - keep the legacy full-read Windows path unchanged while deriving narrower read roots only for elevated restricted-read policies - honor `include_platform_defaults` by adding backend-managed Windows system roots only when requested, while always keeping helper roots and the command `cwd` readable - preserve `workspace-write` semantics by keeping writable roots readable when restricted read access is in use in the elevated backend - document the current Windows boundary: legacy `SandboxPolicy` is supported on both backends, while richer split-only carveouts still fail closed instead of running with weaker enforcement ## Testing - `cargo test -p codex-windows-sandbox` - `cargo check -p codex-windows-sandbox --tests --target x86_64-pc-windows-msvc` - `cargo clippy -p codex-windows-sandbox --tests --target x86_64-pc-windows-msvc -- -D warnings` - `cargo test -p codex-core windows_restricted_token_` ## Notes - local `cargo test -p codex-windows-sandbox` on macOS only exercises the non-Windows stubs; the Windows-targeted compile and clippy runs provide the local signal, and GitHub Windows CI exercises the runtime path |
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iceweasel-oaiandGitHub
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2cc4ee413f | temporarily disable private desktop until it works with elevated IPC path (#14986) | ||
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iceweasel-oaiandGitHub
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95bdea93d2 |
use framed IPC for elevated command runner (#14846)
## Summary This is PR 2 of the Windows sandbox runner split. PR 1 introduced the framed IPC runner foundation and related Windows sandbox infrastructure without changing the active elevated one-shot execution path. This PR switches that elevated one-shot path over to the new runner IPC transport and removes the old request-file bootstrap that PR 1 intentionally left in place. After this change, ordinary elevated Windows sandbox commands still behave as one-shot executions, but they now run as the simple case of the same helper/IPC transport that later unified_exec work will build on. ## Why this is needed for unified_exec Windows elevated sandboxed execution crosses a user boundary: the CLI launches a helper as the sandbox user and has to manage command execution from outside that security context. For one-shot commands, the old request-file/bootstrap flow was sufficient. For unified_exec, it is not. Unified_exec needs a long-lived bidirectional channel so the parent can: - send a spawn request - receive structured spawn success/failure - stream stdout and stderr incrementally - eventually support stdin writes, termination, and other session lifecycle events This PR does not add long-lived sessions yet. It converts the existing elevated one-shot path to use the same framed IPC transport so that PR 3 can add unified_exec session semantics on top of a transport that is already exercised by normal elevated command execution. ## Scope This PR: - updates `windows-sandbox-rs/src/elevated_impl.rs` to launch the runner with named pipes, send a framed `SpawnRequest`, wait for `SpawnReady`, and collect framed `Output`/`Exit` messages - removes the old `--request-file=...` execution path from `windows-sandbox-rs/src/elevated/command_runner_win.rs` - keeps the public behavior one-shot: no session reuse or interactive unified_exec behavior is introduced here This PR does not: - add Windows unified_exec session support - add background terminal reuse - add PTY session lifecycle management ## Why Windows needs this and Linux/macOS do not On Linux and macOS, the existing sandbox/process model composes much more directly with long-lived process control. The parent can generally spawn and own the child process (or PTY) directly inside the sandbox model we already use. Windows elevated sandboxing is different. The parent is not directly managing the sandboxed process in the same way; it launches across a different user/security context. That means long-lived control requires an explicit helper process plus IPC for spawn, output, exit, and later stdin/session control. So the extra machinery here is not because unified_exec is conceptually different on Windows. It is because the elevated Windows sandbox boundary requires a helper-mediated transport to support it cleanly. ## Validation - `cargo test -p codex-windows-sandbox` |
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iceweasel-oaiandGitHub
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d0a693e541 |
windows-sandbox: add runner IPC foundation for future unified_exec (#14139)
# Summary This PR introduces the Windows sandbox runner IPC foundation that later unified_exec work will build on. The key point is that this is intentionally infrastructure-only. The new IPC transport, runner plumbing, and ConPTY helpers are added here, but the active elevated Windows sandbox path still uses the existing request-file bootstrap. In other words, this change prepares the transport and module layout we need for unified_exec without switching production behavior over yet. Part of this PR is also a source-layout cleanup: some Windows sandbox files are moved into more explicit `elevated/`, `conpty/`, and shared locations so it is clearer which code is for the elevated sandbox flow, which code is legacy/direct-spawn behavior, and which helpers are shared between them. That reorganization is intentional in this first PR so later behavioral changes do not also have to carry a large amount of file-move churn. # Why This Is Needed For unified_exec Windows elevated sandboxed unified_exec needs a long-lived, bidirectional control channel between the CLI and a helper process running under the sandbox user. That channel has to support: - starting a process and reporting structured spawn success/failure - streaming stdout/stderr back incrementally - forwarding stdin over time - terminating or polling a long-lived process - supporting both pipe-backed and PTY-backed sessions The existing elevated one-shot path is built around a request-file bootstrap and does not provide those primitives cleanly. Before we can turn on Windows sandbox unified_exec, we need the underlying runner protocol and transport layer that can carry those lifecycle events and streams. # Why Windows Needs More Machinery Than Linux Or macOS Linux and macOS can generally build unified_exec on top of the existing sandbox/process model: the parent can spawn the child directly, retain normal ownership of stdio or PTY handles, and manage the lifetime of the sandboxed process without introducing a second control process. Windows elevated sandboxing is different. To run inside the sandbox boundary, we cross into a different user/security context and then need to manage a long-lived process from outside that boundary. That means we need an explicit helper process plus an IPC transport to carry spawn, stdin, output, and exit events back and forth. The extra code here is mostly that missing Windows sandbox infrastructure, not a conceptual difference in unified_exec itself. # What This PR Adds - the framed IPC message types and transport helpers for parent <-> runner communication - the renamed Windows command runner with both the existing request-file bootstrap and the dormant IPC bootstrap - named-pipe helpers for the elevated runner path - ConPTY helpers and process-thread attribute plumbing needed for PTY-backed sessions - shared sandbox/process helpers that later PRs will reuse when switching live execution paths over - early file/module moves so later PRs can focus on behavior rather than layout churn # What This PR Does Not Yet Do - it does not switch the active elevated one-shot path over to IPC yet - it does not enable Windows sandbox unified_exec yet - it does not remove the existing request-file bootstrap yet So while this code compiles and the new path has basic validation, it is not yet the exercised production path. That is intentional for this first PR: the goal here is to land the transport and runner foundation cleanly before later PRs start routing real command execution through it. # Follow-Ups Planned follow-up PRs will: 1. switch elevated one-shot Windows sandbox execution to the new runner IPC path 2. layer Windows sandbox unified_exec sessions on top of the same transport 3. remove the legacy request-file path once the IPC-based path is live # Validation - `cargo build -p codex-windows-sandbox` |