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nixos/tinc: allow configuration of RSA private key file #93538

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merged 1 commit into from Aug 1, 2020

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erictapen
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Motivation for this change

This is necessary for VPNs where some of the nodes run pre-1.1 versions, as those nodes can't use Ed25519 keys.

Most of Linux distros and even the nixpkgs.tinc attribute run on that version, so it might be useful to have that option.

Things done

Created a new option to use RAS key files. I ran this for three months now without an issue.

  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.

This is necessary for VPNs where some of the nodes run pre-1.1 versions.

Most of Linux distros [0] and even the nixpkgs.tinc attribute run on that
version, so it might be useful to have that option.

[0] https://repology.org/project/tinc/versions
[ -f "/etc/tinc/${network}/rsa_key.priv" ] || tinc -n ${network} generate-rsa-keys 4096
''}
# In case there isn't anything to do
true
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I don't quite understand the need for these two lines.

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If data.rsaed25519PrivateKeyFile != null && data.rsaPrivateKeyFile != null, then the then block would be empty, which is not permitted in bash. Therefore the noop.

@xeji xeji merged commit 89e0d97 into NixOS:master Aug 1, 2020
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3 participants