35 lines
1.3 KiB
Nix
35 lines
1.3 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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# gnupg's manual describes how to setup ccid udev rules:
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# https://www.gnupg.org/howtos/card-howto/en/ch02s03.html
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# gnupg folks advised me (https://dev.gnupg.org/T5409) to look at debian's rules:
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# https://salsa.debian.org/debian/gnupg2/-/blob/debian/main/debian/scdaemon.udev
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# the latest rev of the entire debian gnupg2 repo as of 2021-04-28
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# the scdaemon.udev file was last committed on 2021-01-05 (7817a03):
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scdaemonUdevRev = "01898735a015541e3ffb43c7245ac1e612f40836";
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scdaemonRules = pkgs.fetchurl {
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url = "https://salsa.debian.org/debian/gnupg2/-/raw/${scdaemonUdevRev}/debian/scdaemon.udev";
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sha256 = "08v0vp6950bz7galvc92zdss89y9vcwbinmbfcdldy8x72w6rqr3";
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};
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# per debian's udev deb hook (https://man7.org/linux/man-pages/man1/dh_installudev.1.html)
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destination = "60-scdaemon.rules";
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scdaemonUdevRulesPkg = pkgs.runCommand "scdaemon-udev-rules" {} ''
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loc="$out/lib/udev/rules.d/"
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mkdir -p "''${loc}"
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cp "${scdaemonRules}" "''${loc}/${destination}"
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'';
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cfg = config.hardware.gpgSmartcards;
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in {
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options.hardware.gpgSmartcards = {
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enable = lib.mkEnableOption "udev rules for gnupg smart cards";
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};
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config = lib.mkIf cfg.enable {
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services.udev.packages = [ scdaemonUdevRulesPkg ];
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};
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}
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