bb8fc2646e
$ sed -i '/require =/ { :b; s,(import \([^)]*\)),\1,; /];/ { b e }; n; b b; :e }' *.nix
svn path=/nixos/branches/modular-nixos/; revision=15660
141 lines
2.6 KiB
Nix
141 lines
2.6 KiB
Nix
{pkgs, config, ...}:
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###### interface
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let
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inherit (pkgs.lib) mkOption;
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options = {
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services = {
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atd = {
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enable = mkOption {
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default = true;
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description = ''
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Whether to enable the `at' daemon, a command scheduler.
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'';
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};
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allowEveryone = mkOption {
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default = false;
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description = ''
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Whether to make /var/spool/at{jobs,spool} writeable
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by everyone (and sticky). This is normally not needed since
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the `at' commands are setuid/setgid `atd'.
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'';
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};
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};
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};
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};
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in
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###### implementation
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let
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cfg = config.services.atd;
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inherit (pkgs.lib) mkIf;
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inherit (pkgs) at;
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user = {
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name = "atd";
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uid = (import ../system/ids.nix).uids.atd;
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description = "atd user";
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home = "/var/empty";
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};
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group = {
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name = "atd";
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gid = (import ../system/ids.nix).gids.atd;
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};
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job = ''
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description "at daemon (atd)"
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start on startup
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stop on shutdown
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start script
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# Snippets taken and adapted from the original `install' rule of
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# the makefile.
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# We assume these values are those actually used in Nixpkgs for
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# `at'.
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spooldir=/var/spool/atspool
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jobdir=/var/spool/atjobs
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etcdir=/etc/at
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for dir in "$spooldir" "$jobdir" "$etcdir"
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do
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if [ ! -d "$dir" ]
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then
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mkdir -p "$dir" && chown atd:atd "$dir"
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fi
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done
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chmod 1770 "$spooldir" "$jobdir"
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${if cfg.allowEveryone then ''chmod a+rwxt "$spooldir" "$jobdir" '' else ""}
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if [ ! -f "$etcdir"/at.deny ]
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then
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touch "$etcdir"/at.deny && \
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chown root:atd "$etcdir"/at.deny && \
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chmod 640 "$etcdir"/at.deny
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fi
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if [ ! -f "$jobdir"/.SEQ ]
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then
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touch "$jobdir"/.SEQ && \
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chown atd:atd "$jobdir"/.SEQ && \
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chmod 600 "$jobdir"/.SEQ
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fi
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end script
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respawn ${at}/sbin/atd
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'';
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in
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mkIf cfg.enable {
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require = [
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options
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# config.services.extraJobs
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../upstart-jobs/default.nix
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# config.environment.etc
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../etc/default.nix
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# users.*
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../system/users-groups.nix
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# ? # config.environment.extraPackages
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# ? # config.security.extraSetuidPrograms
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];
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security = {
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setuidOwners = map (program: {
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inherit program;
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owner = "atd";
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group = "atd";
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setuid = true;
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setgid = true;
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}) [ "at" "atq" "atrm" ];
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};
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environment = {
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extraPackages = [ at ];
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etc = [{
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source = ../etc/pam.d/atd;
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target = "pam.d/atd";
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}];
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};
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users = {
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extraUsers = [user];
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extraGroups = [group];
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};
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services = {
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extraJobs = [{
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name = "atd";
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inherit job;
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}];
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};
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}
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