128 lines
4.6 KiB
Nix
128 lines
4.6 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}: let
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cfg = config.myOptions.services.ssh;
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inherit (lib) getExe' mkEnableOption mkIf mkMerge mkOption;
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inherit (lib.types) attrsOf bool nullOr number str submodule;
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inherit (lib.strings) concatStrings;
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inherit (lib.attrsets) mapAttrsToList;
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ksshaskpass = getExe' pkgs.libsForQt5.ksshaskpass "ksshaskpass";
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ssh-agent = getExe' pkgs.openssh "ssh-agent";
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in {
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options.myOptions.services.ssh = {
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daemon = mkOption {
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description = "sshd options";
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type = submodule {
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options = {
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enable = mkEnableOption "sshd";
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passwordAuth = mkOption {
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description = "allow password auth";
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default = false;
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type = bool;
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};
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allowRoot = mkOption {
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description = "allow root login";
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default = false;
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type = bool;
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};
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};
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};
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};
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agent = mkOption {
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description = "ssh agent options";
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type = submodule {
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options = {
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enable = mkEnableOption "ssh-agent";
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hostAliases = mkOption {
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description = "host aliases";
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type = attrsOf (submodule {
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options = {
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hostName = mkOption {
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description = "hostname to ssh into";
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type = str;
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};
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port = mkOption {
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description = "port to ssh into";
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type = nullOr number;
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default = null;
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};
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user = mkOption {
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description = "ssh user";
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type = str;
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default = "git";
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};
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publicKey = mkOption {
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description = "public key used for picking the correct key from the ssh-agent";
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type = nullOr str;
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default = null;
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};
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};
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});
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default = {};
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};
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};
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};
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};
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};
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config = mkMerge [
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(mkIf cfg.daemon.enable {
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services.openssh = {
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enable = true;
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settings = {
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PasswordAuthentication = false;
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PermitRootLogin = "no";
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LoginGraceTime = 0;
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};
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};
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})
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(mkIf cfg.agent.enable {
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programs.ssh = {
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enableAskPassword = true;
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askPassword = ksshaskpass;
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extraConfig = ''
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AddKeysToAgent yes
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${concatStrings (mapAttrsToList (name: value: ''
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Host ${name}
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HostName ${value.hostName}
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User ${value.user}
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${
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if value.port != null then
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"Port ${toString value.port}"
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else ""
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}
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${
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if value.publicKey != null then
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"IdentityFile ${pkgs.writeText "${name}.pub" value.publicKey}"
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else ""
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}
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'') cfg.agent.hostAliases)}
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'';
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};
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systemd.user.services.ssh-agent = {
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enable = true;
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description = "SSH key agent";
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serviceConfig = {
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Type = "simple";
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ExecStart = "${ssh-agent} -D -a $SSH_AUTH_SOCK";
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};
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environment = {
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SSH_AUTH_SOCK = "%t/ssh-agent.socket";
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DISPLAY = ":0";
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};
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wantedBy = [ "default.target" ];
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};
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environment.sessionVariables = {
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SSH_AUTH_SOCK = "\$XDG_RUNTIME_DIR/ssh-agent.socket";
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};
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})
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];
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}
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