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author | Alyssa Ross <hi@alyssa.is> | 2019-01-07 02:18:36 +0000 |
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committer | Alyssa Ross <hi@alyssa.is> | 2019-01-07 02:18:47 +0000 |
commit | 36f56d99fa0a0765c9f1de4a5f17a9b05830c3f2 (patch) | |
tree | b3faaf573407b32aa645237a4d16b82778a39a92 /nixpkgs/nixos/modules/security/rngd.nix | |
parent | 4e31070265257dc67d120c27e0f75c2344fdfa9a (diff) | |
parent | abf060725d7614bd3b9f96764262dfbc2f9c2199 (diff) | |
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Add 'nixpkgs/' from commit 'abf060725d7614bd3b9f96764262dfbc2f9c2199'
git-subtree-dir: nixpkgs git-subtree-mainline: 4e31070265257dc67d120c27e0f75c2344fdfa9a git-subtree-split: abf060725d7614bd3b9f96764262dfbc2f9c2199
Diffstat (limited to 'nixpkgs/nixos/modules/security/rngd.nix')
-rw-r--r-- | nixpkgs/nixos/modules/security/rngd.nix | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/security/rngd.nix b/nixpkgs/nixos/modules/security/rngd.nix new file mode 100644 index 000000000000..a54ef2e6fcad --- /dev/null +++ b/nixpkgs/nixos/modules/security/rngd.nix @@ -0,0 +1,35 @@ +{ config, lib, pkgs, ... }: + +with lib; + +{ + options = { + security.rngd.enable = mkOption { + type = types.bool; + default = true; + description = '' + Whether to enable the rng daemon, which adds entropy from + hardware sources of randomness to the kernel entropy pool when + available. + ''; + }; + }; + + config = mkIf config.security.rngd.enable { + services.udev.extraRules = '' + KERNEL=="random", TAG+="systemd" + SUBSYSTEM=="cpu", ENV{MODALIAS}=="cpu:type:x86,*feature:*009E*", TAG+="systemd", ENV{SYSTEMD_WANTS}+="rngd.service" + KERNEL=="hw_random", TAG+="systemd", ENV{SYSTEMD_WANTS}+="rngd.service" + ''; + + systemd.services.rngd = { + bindsTo = [ "dev-random.device" ]; + + after = [ "dev-random.device" ]; + + description = "Hardware RNG Entropy Gatherer Daemon"; + + serviceConfig.ExecStart = "${pkgs.rng-tools}/sbin/rngd -f"; + }; + }; +} |