Merge pull request #96092 from nbraud/security/rngd
nixos/modules/security/rngd: Disable by default
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commit
f7a6a1a183
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@ -815,6 +815,13 @@ CREATE ROLE postgres LOGIN SUPERUSER;
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the value of <option>services.jellyfin.package</option> to <literal>pkgs.jellyfin_10_5</literal>.
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</para>
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</listitem>
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<listitem>
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<para>
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The <literal>security.rngd</literal> service is now disabled by default.
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This choice was made because there's krngd in the linux kernel space making it (for most usecases)
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functionally redundent.
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</para>
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</listitem>
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</itemizedlist>
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</section>
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@ -10,11 +10,10 @@ in
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security.rngd = {
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enable = mkOption {
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type = types.bool;
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default = true;
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default = false;
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description = ''
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Whether to enable the rng daemon, which adds entropy from
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hardware sources of randomness to the kernel entropy pool when
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available.
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Whether to enable the rng daemon. Devices that the kernel recognises
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as entropy sources are handled automatically by krngd.
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'';
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};
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debug = mkOption {
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@ -26,12 +25,6 @@ in
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};
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config = mkIf cfg.enable {
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services.udev.extraRules = ''
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KERNEL=="random", TAG+="systemd"
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SUBSYSTEM=="cpu", ENV{MODALIAS}=="cpu:type:x86,*feature:*009E*", TAG+="systemd", ENV{SYSTEMD_WANTS}+="rngd.service"
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KERNEL=="hw_random", TAG+="systemd", ENV{SYSTEMD_WANTS}+="rngd.service"
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'';
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systemd.services.rngd = {
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bindsTo = [ "dev-random.device" ];
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