forked from mirrors/nixpkgs
103 lines
3.4 KiB
Nix
103 lines
3.4 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.security.pam.mount;
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anyPamMount = any (attrByPath ["pamMount"] false) (attrValues config.security.pam.services);
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in
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{
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options = {
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security.pam.mount = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Enable PAM mount system to mount fileystems on user login.
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'';
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};
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extraVolumes = mkOption {
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type = types.listOf types.str;
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default = [];
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description = ''
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List of volume definitions for pam_mount.
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For more information, visit <link
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xlink:href="http://pam-mount.sourceforge.net/pam_mount.conf.5.html" />.
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'';
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};
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additionalSearchPaths = mkOption {
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type = types.listOf types.package;
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default = [];
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example = literalExample "[ pkgs.bindfs ]";
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description = ''
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Additional programs to include in the search path of pam_mount.
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Useful for example if you want to use some FUSE filesystems like bindfs.
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'';
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};
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fuseMountOptions = mkOption {
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type = types.listOf types.str;
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default = [];
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example = literalExample ''
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[ "nodev" "nosuid" "force-user=%(USER)" "gid=%(USERGID)" "perms=0700" "chmod-deny" "chown-deny" "chgrp-deny" ]
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'';
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description = ''
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Global mount options that apply to every FUSE volume.
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You can define volume-specific options in the volume definitions.
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'';
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};
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};
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};
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config = mkIf (cfg.enable || anyPamMount) {
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environment.systemPackages = [ pkgs.pam_mount ];
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environment.etc."security/pam_mount.conf.xml" = {
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source =
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let
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extraUserVolumes = filterAttrs (n: u: u.cryptHomeLuks != null || u.pamMount != {}) config.users.users;
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mkAttr = k: v: ''${k}="${v}"'';
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userVolumeEntry = user: let
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attrs = {
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user = user.name;
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path = user.cryptHomeLuks;
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mountpoint = user.home;
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} // user.pamMount;
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in
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"<volume ${concatStringsSep " " (mapAttrsToList mkAttr attrs)} />\n";
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in
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pkgs.writeText "pam_mount.conf.xml" ''
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<?xml version="1.0" encoding="utf-8" ?>
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<!DOCTYPE pam_mount SYSTEM "pam_mount.conf.xml.dtd">
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<!-- auto generated from Nixos: modules/config/users-groups.nix -->
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<pam_mount>
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<debug enable="0" />
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<!-- if activated, requires ofl from hxtools to be present -->
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<logout wait="0" hup="no" term="no" kill="no" />
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<!-- set PATH variable for pam_mount module -->
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<path>${makeBinPath ([ pkgs.util-linux ] ++ cfg.additionalSearchPaths)}</path>
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<!-- create mount point if not present -->
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<mkmountpoint enable="1" remove="true" />
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<!-- specify the binaries to be called -->
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<fusemount>${pkgs.fuse}/bin/mount.fuse %(VOLUME) %(MNTPT) -o ${concatStringsSep "," (cfg.fuseMountOptions ++ [ "%(OPTIONS)" ])}</fusemount>
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<cryptmount>${pkgs.pam_mount}/bin/mount.crypt %(VOLUME) %(MNTPT)</cryptmount>
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<cryptumount>${pkgs.pam_mount}/bin/umount.crypt %(MNTPT)</cryptumount>
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<pmvarrun>${pkgs.pam_mount}/bin/pmvarrun -u %(USER) -o %(OPERATION)</pmvarrun>
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${concatStrings (map userVolumeEntry (attrValues extraUserVolumes))}
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${concatStringsSep "\n" cfg.extraVolumes}
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</pam_mount>
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'';
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};
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};
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}
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