## What changed
- Export `StaticNetworkProxyConfig` to parse and serialize network policy with constraints, and validate them before building proxy state.
- Add `--strict` and `from_slice_strict` for managed callers, requiring explicit `constraints` and rejecting unknown fields at every typed level. Default parsing permits top-level `metadata` and omitted constraints while still rejecting unknown policy fields.
- Match allowed Unix socket paths case-sensitively when validating constraints.
- Bound configuration file reads to the size limit plus one byte.
## Testing
Add coverage for constraint round trips, weakened policy rejection, exact socket path matching, parsing modes, and CLI flag selection. Exercise automatic MITM enablement through both parsers.
GitOrigin-RevId: c45d094624240f23dd4659128e72a4208d5d5f1c
Pass `Platform::native()` to `build_config_state` in the standalone network
proxy to satisfy its required executor OS argument and validate socket paths
for the host platform.
GitOrigin-RevId: d3ce8c513a3a6c5ffea6522d8b830deb40f1dfc8
## Why
Allow the network policy proxy to run without a full Codex permissions profile.
## What changed
- Add `codex-network-proxy --config <PATH>` to load a standalone JSON file containing a `network` object and run the proxy independently of Codex.
- Require `network.enabled = true`, limit configuration size to 1 MiB, and reject unknown fields, including nested MITM hook fields, and trailing JSON values.
- Enable HTTPS MITM automatically for limited mode or configured `mitm_hooks`, while supporting explicit `mitm` configuration.
- Document the standalone configuration and invocation.
## Testing
Add tests for MITM defaults, dynamic policy keys, unknown fields, and trailing JSON values. Add a regression test that verifies `wait()` promptly returns an error when either the HTTP or SOCKS listener fails.
GitOrigin-RevId: ba20b9c3022b16abaa5597f473c418cfc06c18ee
This add a new crate, `codex-network-proxy`, a local network proxy
service used by Codex to enforce fine-grained network policy (domain
allow/deny) and to surface blocked network events for interactive
approvals.
- New crate: `codex-rs/network-proxy/` (`codex-network-proxy` binary +
library)
- Core capabilities:
- HTTP proxy support (including CONNECT tunneling)
- SOCKS5 proxy support (in the later PR)
- policy evaluation (allowed/denied domain lists; denylist wins;
wildcard support)
- small admin API for polling/reload/mode changes
- optional MITM support for HTTPS CONNECT to enforce “limited mode”
method restrictions (later PR)
Will follow up integration with codex in subsequent PRs.
## Testing
- `cd codex-rs && cargo build -p codex-network-proxy`
- `cd codex-rs && cargo run -p codex-network-proxy -- proxy`
viyatb-oai