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nixos/networkd: support systemd-creds in WireGuard

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systemd 256 supports network.wireguard.* credentials (https://github.com/systemd/systemd/pull/30826).
Check whether PrivateKey / PresharedKey starts with an @, if so it is a credential.
This commit is contained in:
James Atkins 2024-10-06 16:52:42 -05:00
parent bc947f541a
commit 42f5ecde9d
2 changed files with 17 additions and 6 deletions
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18
nixos/modules/system/boot/networkd.nix
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@ -411,11 +411,14 @@ let
(assertValueOneOf "Layer2SpecificHeader" [ "none" "default" ])
];
# NOTE The PrivateKey directive is missing on purpose here, please
# do not add it to this list. The nix store is world-readable let's
# refrain ourselves from providing a footgun.
# NOTE Check whether the key starts with an @, in which case it is
# interpreted as the name of the credential from which the actual key
# shall be read by systemd-creds.
# Do not remove this check as the nix store is world-readable.
sectionWireGuard = checkUnitConfig "WireGuard" [
(assertKeyIsSystemdCredential "PrivateKey")
(assertOnlyFields [
"PrivateKey"
"PrivateKeyFile"
"ListenPort"
"FirewallMark"
@ -426,12 +429,15 @@ let
(assertRange "FirewallMark" 1 4294967295)
];
# NOTE The PresharedKey directive is missing on purpose here, please
# do not add it to this list. The nix store is world-readable,let's
# refrain ourselves from providing a footgun.
# NOTE Check whether the key starts with an @, in which case it is
# interpreted as the name of the credential from which the actual key
# shall be read by systemd-creds.
# Do not remove this check as the nix store is world-readable.
sectionWireGuardPeer = checkUnitConfigWithLegacyKey "wireguardPeerConfig" "WireGuardPeer" [
(assertKeyIsSystemdCredential "PresharedKey")
(assertOnlyFields [
"PublicKey"
"PresharedKey"
"PresharedKeyFile"
"AllowedIPs"
"Endpoint"