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nixos/udev: Put all initrd options into a namespace

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Janne Heß 2 years ago
parent fb44ecd129
commit 7024b4e5e3
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GPG Key ID: 69165158F05265DF
2 changed files with 58 additions and 50 deletions
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  1. 106
      nixos/modules/services/hardware/udev.nix
  2. 2
      nixos/tests/networking.nix

106
nixos/modules/services/hardware/udev.nix
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@ -197,34 +197,6 @@ in
apply = map getBin;
};
initrdPackages = mkOption {
type = types.listOf types.path;
default = [];
visible = false;
description = ''
<emphasis>This will only be used when systemd is used in stage 1.</emphasis>
List of packages containing <command>udev</command> rules that will be copied to stage 1.
All files found in
<filename><replaceable>pkg</replaceable>/etc/udev/rules.d</filename> and
<filename><replaceable>pkg</replaceable>/lib/udev/rules.d</filename>
will be included.
'';
};
initrdBinPackages = mkOption {
type = types.listOf types.path;
default = [];
visible = false;
description = ''
<emphasis>This will only be used when systemd is used in stage 1.</emphasis>
Packages to search for binaries that are referenced by the udev rules in stage 1.
This list always contains /bin of the initrd.
'';
apply = map getBin;
};
path = mkOption {
type = types.listOf types.path;
default = [];
@ -234,20 +206,6 @@ in
'';
};
initrdRules = mkOption {
default = "";
example = ''
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:1D:60:B9:6D:4F", KERNEL=="eth*", NAME="my_fast_network_card"
'';
type = types.lines;
description = ''
<command>udev</command> rules to include in the initrd
<emphasis>only</emphasis>. They'll be written into file
<filename>99-local.rules</filename>. Thus they are read and applied
after the essential initrd rules.
'';
};
extraRules = mkOption {
default = "";
example = ''
@ -315,6 +273,52 @@ in
'';
};
boot.initrd.services.udev = {
packages = mkOption {
type = types.listOf types.path;
default = [];
visible = false;
description = ''
<emphasis>This will only be used when systemd is used in stage 1.</emphasis>
List of packages containing <command>udev</command> rules that will be copied to stage 1.
All files found in
<filename><replaceable>pkg</replaceable>/etc/udev/rules.d</filename> and
<filename><replaceable>pkg</replaceable>/lib/udev/rules.d</filename>
will be included.
'';
};
binPackages = mkOption {
type = types.listOf types.path;
default = [];
visible = false;
description = ''
<emphasis>This will only be used when systemd is used in stage 1.</emphasis>
Packages to search for binaries that are referenced by the udev rules in stage 1.
This list always contains /bin of the initrd.
'';
apply = map getBin;
};
rules = mkOption {
default = "";
example = ''
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:1D:60:B9:6D:4F", KERNEL=="eth*", NAME="my_fast_network_card"
'';
type = types.lines;
description = ''
<command>udev</command> rules to include in the initrd
<emphasis>only</emphasis>. They'll be written into file
<filename>99-local.rules</filename>. Thus they are read and applied
after the essential initrd rules.
'';
};
};
};
@ -330,10 +334,10 @@ in
boot.kernelParams = mkIf (!config.networking.usePredictableInterfaceNames) [ "net.ifnames=0" ];
boot.initrd.extraUdevRulesCommands = optionalString (!config.boot.initrd.systemd.enable && cfg.initrdRules != "")
boot.initrd.extraUdevRulesCommands = optionalString (!config.boot.initrd.systemd.enable && config.boot.initrd.services.udev.rules != "")
''
cat <<'EOF' > $out/99-local.rules
${cfg.initrdRules}
${config.boot.initrd.services.udev.rules}
EOF
'';
@ -348,25 +352,25 @@ in
boot.initrd.systemd.storePaths = [
"${config.boot.initrd.systemd.package}/lib/systemd/systemd-udevd"
"${config.boot.initrd.systemd.package}/lib/udev"
] ++ map toString cfg.initrdBinPackages;
] ++ map (x: "${x}/bin") config.boot.initrd.services.udev.binPackages;
# Generate the udev rules for the initrd
boot.initrd.systemd.contents = {
"/etc/udev/rules.d".source = udevRulesFor {
name = "initrd-udev-rules";
initrdBin = config.boot.initrd.systemd.contents."/bin".source;
udevPackages = cfg.initrdPackages;
udevPackages = config.boot.initrd.services.udev.packages;
udevPath = config.boot.initrd.systemd.contents."/bin".source;
udev = config.boot.initrd.systemd.package;
systemd = config.boot.initrd.systemd.package;
binPackages = cfg.initrdBinPackages ++ [ config.boot.initrd.systemd.contents."/bin".source ];
binPackages = config.boot.initrd.services.udev.binPackages ++ [ config.boot.initrd.systemd.contents."/bin".source ];
};
};
# Insert custom rules
services.udev.initrdPackages = mkIf (cfg.initrdRules != "") (pkgs.writeTextFile {
boot.initrd.services.udev.packages = mkIf (config.boot.initrd.services.udev.rules != "") (pkgs.writeTextFile {
name = "initrd-udev-rules";
destination = "/etc/udev/rules.d/99-local.rules";
text = cfg.initrdRules;
text = config.boot.initrd.services.udev.rules;
});
environment.etc =
@ -408,4 +412,8 @@ in
};
};
imports = [
(mkRenamedOptionModule [ "services" "udev" "initrdRules" ] [ "boot" "initrd" "services" "udev" "rules" ])
];
}

2
nixos/tests/networking.nix
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@ -878,7 +878,7 @@ let
linkConfig.Name = "custom_name";
};
}
else { services.udev.initrdRules = ''
else { boot.initrd.services.udev.rules = ''
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="52:54:00:12:01:01", KERNEL=="eth*", NAME="custom_name"
'';
});

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