Ind60c3f7f7c, this was changed to close a hole in the sandbox. Unfortunately, this was too restrictive such that it made local port binding fail, thus making derivations that needed `__darwinAllowLocalNetworking` gain nearly nothing, and thus largely fail (as the primary use for it is to enable port binding). This unfortunately does mean that a sandboxed build process can, in coordination with an actor outside the sandbox, escape the sandbox by binding a port and connecting to it externally to send data. I do not see a way around this with my experimentation and understanding of the (quite undocumented) macOS sandbox profile API. Notably it seems not possible to use the sandbox to do any of: - Restrict the remote IP of inbound network requests - Restrict the address being bound to As such, the `(local ip "*:*")` here appears to be functionally no different than `(local ip "localhost:*")` (however it *should* be different than removing the filter entirely, as that would make it also apply to non-IP networking). Doing `(allow network-inbound (require-all (local ip "localhost:*") (remote ip "localhost:*")))` causes listening to fail. Note that `network-inbound` implies `network-bind`. (cherry picked from commit00f6db36fd)
Nix
Nix is a powerful package manager for Linux and other Unix systems that makes package management reliable and reproducible. Please refer to the Nix manual for more details.
Installation and first steps
Visit nix.dev for installation instructions and beginner tutorials.
Full reference documentation can be found in the Nix manual.
Building and developing
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Contributing
Check the contributing guide if you want to get involved with developing Nix.
Additional resources
Nix was created by Eelco Dolstra and developed as the subject of his PhD thesis The Purely Functional Software Deployment Model, published 2006. Today, a world-wide developer community contributes to Nix and the ecosystem that has grown around it.
- The Nix, Nixpkgs, NixOS Community on nixos.org
- Official documentation on nix.dev
- Nixpkgs is the largest, most up-to-date free software repository in the world
- NixOS is a Linux distribution that can be configured fully declaratively
- Discourse
- Matrix
License
Nix is released under the LGPL v2.1.