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viyatb-oai
81fa04783a
## Summary This PR makes Windows sandbox proxying enforceable by routing proxy-only runs through the existing `offline` sandbox user and reserving direct network access for the existing `online` sandbox user. In brief: - if a Windows sandbox run should be proxy-enforced, we run it as the `offline` user - the `offline` user gets firewall rules that block direct outbound traffic and only permit the configured localhost proxy path - if a Windows sandbox run should have true direct network access, we run it as the `online` user - no new sandbox identity is introduced This brings Windows in line with the intended model: proxy use is not just env-based, it is backed by OS-level egress controls. Windows already has two sandbox identities: - `offline`: intended to have no direct network egress - `online`: intended to have full network access This PR makes proxy-enforced runs use that model directly. ### Proxy-enforced runs When proxy enforcement is active: - the run is assigned to the `offline` identity - setup extracts the loopback proxy ports from the sandbox env - Windows setup programs firewall rules for the `offline` user that: - block all non-loopback outbound traffic - block loopback UDP - block loopback TCP except for the configured proxy ports - optionally allow broader localhost access when `allow_local_binding=1` So the sandboxed process can only talk to the local proxy. It cannot open direct outbound sockets or do local UDP-based DNS on its own.The proxy then performs the real outbound network access outside that restricted sandbox identity. ### Direct-network runs When proxy enforcement is not active and full network access is allowed: - the run is assigned to the `online` identity - no proxy-only firewall restrictions are applied - the process gets normal direct network access ### Unelevated vs elevated The restricted-token / unelevated path cannot enforce per-identity firewall policy by itself. So for Windows proxy-enforced runs, we transparently use the logon-user sandbox path under the hood, even if the caller started from the unelevated mode. That keeps enforcement real instead of best-effort. --------- Co-authored-by: Codex <noreply@openai.com>
81fa04783a
·
2026-03-26 17:27:38 -07:00
4,881 Commits
npm i -g @openai/codex
or brew install --cask codex
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Install globally with your preferred package manager:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Team, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.