nixops: yubikey piv auth
This commit is contained in:
parent
cfc20a13c5
commit
70c6a212e2
@ -8,9 +8,11 @@ in
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{
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deployment.targetHost = host;
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disabledModules = [ "security/pam.nix" ];
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imports =
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[
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(./. + "/${host}-hardware-configuration.nix")
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./pam_p11
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];
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networking.hostName = host;
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@ -21,6 +23,7 @@ in
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# $ nix search wget
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nixpkgs.config.allowUnfree = true;
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environment.systemPackages = with pkgs; [
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opensc yubikey-manager yubikey-manager-qt
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wget vim gitAndTools.gitFull firefox thunderbird hexchat usbutils pciutils file lm_sensors audacious acpi
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gimp imagemagick
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(python3.withPackages(ps: with ps; [ numpy scipy matplotlib qtconsole regex ]))
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@ -52,6 +55,7 @@ in
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programs.ssh.startAgent = true;
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services.gnome3.gnome-keyring.enable = pkgs.lib.mkForce false;
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programs.ssh.agentPKCS11Whitelist = "${pkgs.opensc}/lib/opensc-pkcs11.so";
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security.pam.p11.enable = true;
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# Enable CUPS to print documents.
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services.printing = {
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@ -4,9 +4,11 @@
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{
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deployment.targetHost = host;
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disabledModules = [ "security/pam.nix" ];
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imports =
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[
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(./. + "/${host}-hardware-configuration.nix")
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./pam_p11
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];
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networking.hostName = host;
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@ -18,6 +20,7 @@
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documentation.enable = false;
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nixpkgs.config.allowUnfree = true;
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environment.systemPackages = with pkgs; [
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opensc
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wget vim git firefox usbutils pciutils file lm_sensors acpi
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gimp imagemagick
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(python3.withPackages(ps: with ps; [ numpy scipy ]))
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@ -40,6 +43,7 @@
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'';
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programs.ssh.startAgent = true;
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programs.ssh.agentPKCS11Whitelist = "${pkgs.opensc}/lib/opensc-pkcs11.so";
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security.pam.p11.enable = true;
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# Enable CUPS to print documents.
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services.printing = {
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843
nixops/pam_p11/default.nix
Normal file
843
nixops/pam_p11/default.nix
Normal file
@ -0,0 +1,843 @@
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# This module provides configuration for the PAM (Pluggable
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# Authentication Modules) system.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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pam_p11 = pkgs.callPackage ./pam_p11.nix {};
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parentConfig = config;
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pamOpts = { config, name, ... }: let cfg = config; in let config = parentConfig; in {
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options = {
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name = mkOption {
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example = "sshd";
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type = types.str;
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description = "Name of the PAM service.";
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};
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unixAuth = mkOption {
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default = true;
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type = types.bool;
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description = ''
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Whether users can log in with passwords defined in
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<filename>/etc/shadow</filename>.
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'';
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};
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rootOK = mkOption {
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default = false;
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type = types.bool;
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description = ''
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If set, root doesn't need to authenticate (e.g. for the
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<command>useradd</command> service).
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'';
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};
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p11Auth = mkOption {
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default = config.security.pam.p11.enable;
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type = types.bool;
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description = ''
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If set, keys listed in
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<filename>~/.ssh/authorized_keys</filename> and
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<filename>~/.eid/authorized_certificates</filename>
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can be used to log in with the associated PKCS#11 tokens.
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'';
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};
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u2fAuth = mkOption {
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default = config.security.pam.u2f.enable;
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type = types.bool;
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description = ''
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If set, users listed in
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<filename>$XDG_CONFIG_HOME/Yubico/u2f_keys</filename> (or
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<filename>$HOME/.config/Yubico/u2f_keys</filename> if XDG variable is
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not set) are able to log in with the associated U2F key. Path can be
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changed using <option>security.pam.u2f.authFile</option> option.
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'';
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};
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yubicoAuth = mkOption {
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default = config.security.pam.yubico.enable;
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type = types.bool;
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description = ''
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If set, users listed in
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<filename>~/.yubico/authorized_yubikeys</filename>
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are able to log in with the associated Yubikey tokens.
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'';
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};
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googleAuthenticator = {
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enable = mkOption {
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default = false;
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type = types.bool;
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description = ''
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If set, users with enabled Google Authenticator (created
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<filename>~/.google_authenticator</filename>) will be required
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to provide Google Authenticator token to log in.
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'';
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};
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};
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usbAuth = mkOption {
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default = config.security.pam.usb.enable;
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type = types.bool;
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description = ''
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If set, users listed in
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<filename>/etc/pamusb.conf</filename> are able to log in
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with the associated USB key.
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'';
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};
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otpwAuth = mkOption {
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default = config.security.pam.enableOTPW;
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type = types.bool;
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description = ''
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If set, the OTPW system will be used (if
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<filename>~/.otpw</filename> exists).
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'';
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};
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googleOsLoginAccountVerification = mkOption {
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default = false;
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type = types.bool;
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description = ''
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If set, will use the Google OS Login PAM modules
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(<literal>pam_oslogin_login</literal>,
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<literal>pam_oslogin_admin</literal>) to verify possible OS Login
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users and set sudoers configuration accordingly.
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This only makes sense to enable for the <literal>sshd</literal> PAM
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service.
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'';
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};
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googleOsLoginAuthentication = mkOption {
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default = false;
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type = types.bool;
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description = ''
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If set, will use the <literal>pam_oslogin_login</literal>'s user
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authentication methods to authenticate users using 2FA.
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This only makes sense to enable for the <literal>sshd</literal> PAM
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service.
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'';
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};
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fprintAuth = mkOption {
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default = config.services.fprintd.enable;
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type = types.bool;
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description = ''
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If set, fingerprint reader will be used (if exists and
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your fingerprints are enrolled).
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'';
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};
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oathAuth = mkOption {
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default = config.security.pam.oath.enable;
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type = types.bool;
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description = ''
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If set, the OATH Toolkit will be used.
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'';
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};
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sshAgentAuth = mkOption {
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default = false;
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type = types.bool;
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description = ''
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If set, the calling user's SSH agent is used to authenticate
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against the keys in the calling user's
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<filename>~/.ssh/authorized_keys</filename>. This is useful
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for <command>sudo</command> on password-less remote systems.
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'';
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};
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duoSecurity = {
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enable = mkOption {
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default = false;
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type = types.bool;
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description = ''
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If set, use the Duo Security pam module
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<literal>pam_duo</literal> for authentication. Requires
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configuration of <option>security.duosec</option> options.
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'';
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};
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};
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startSession = mkOption {
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default = false;
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type = types.bool;
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description = ''
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If set, the service will register a new session with
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systemd's login manager. For local sessions, this will give
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the user access to audio devices, CD-ROM drives. In the
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default PolicyKit configuration, it also allows the user to
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reboot the system.
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'';
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};
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setEnvironment = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Whether the service should set the environment variables
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listed in <option>environment.sessionVariables</option>
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using <literal>pam_env.so</literal>.
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'';
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};
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setLoginUid = mkOption {
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type = types.bool;
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description = ''
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Set the login uid of the process
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(<filename>/proc/self/loginuid</filename>) for auditing
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purposes. The login uid is only set by ‘entry points’ like
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<command>login</command> and <command>sshd</command>, not by
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commands like <command>sudo</command>.
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'';
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};
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forwardXAuth = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Whether X authentication keys should be passed from the
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calling user to the target user (e.g. for
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<command>su</command>)
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'';
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};
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pamMount = mkOption {
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default = config.security.pam.mount.enable;
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type = types.bool;
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description = ''
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Enable PAM mount (pam_mount) system to mount fileystems on user login.
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'';
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};
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allowNullPassword = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Whether to allow logging into accounts that have no password
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set (i.e., have an empty password field in
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<filename>/etc/passwd</filename> or
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<filename>/etc/group</filename>). This does not enable
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logging into disabled accounts (i.e., that have the password
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field set to <literal>!</literal>). Note that regardless of
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what the pam_unix documentation says, accounts with hashed
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empty passwords are always allowed to log in.
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'';
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};
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nodelay = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Wheather the delay after typing a wrong password should be disabled.
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'';
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};
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requireWheel = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Whether to permit root access only to members of group wheel.
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'';
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};
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limits = mkOption {
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description = ''
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Attribute set describing resource limits. Defaults to the
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value of <option>security.pam.loginLimits</option>.
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'';
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};
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showMotd = mkOption {
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default = false;
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type = types.bool;
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description = "Whether to show the message of the day.";
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};
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makeHomeDir = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Whether to try to create home directories for users
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with <literal>$HOME</literal>s pointing to nonexistent
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locations on session login.
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'';
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};
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updateWtmp = mkOption {
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default = false;
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type = types.bool;
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description = "Whether to update <filename>/var/log/wtmp</filename>.";
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};
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logFailures = mkOption {
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default = false;
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type = types.bool;
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description = "Whether to log authentication failures in <filename>/var/log/faillog</filename>.";
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};
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enableAppArmor = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Enable support for attaching AppArmor profiles at the
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user/group level, e.g., as part of a role based access
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control scheme.
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'';
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};
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enableKwallet = mkOption {
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default = false;
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type = types.bool;
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description = ''
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If enabled, pam_wallet will attempt to automatically unlock the
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user's default KDE wallet upon login. If the user has no wallet named
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"kdewallet", or the login password does not match their wallet
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password, KDE will prompt separately after login.
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'';
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};
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sssdStrictAccess = mkOption {
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default = false;
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type = types.bool;
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description = "enforce sssd access control";
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};
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enableGnomeKeyring = mkOption {
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default = false;
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type = types.bool;
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description = ''
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If enabled, pam_gnome_keyring will attempt to automatically unlock the
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user's default Gnome keyring upon login. If the user login password does
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not match their keyring password, Gnome Keyring will prompt separately
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after login.
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'';
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};
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text = mkOption {
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type = types.nullOr types.lines;
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description = "Contents of the PAM service file.";
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};
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};
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config = {
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name = mkDefault name;
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setLoginUid = mkDefault cfg.startSession;
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limits = mkDefault config.security.pam.loginLimits;
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# !!! TODO: move the LDAP stuff to the LDAP module, and the
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# Samba stuff to the Samba module. This requires that the PAM
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# module provides the right hooks.
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text = mkDefault
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(''
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# Account management.
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account required pam_unix.so
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${optionalString use_ldap
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"account sufficient ${pam_ldap}/lib/security/pam_ldap.so"}
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${optionalString (config.services.sssd.enable && cfg.sssdStrictAccess==false)
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"account sufficient ${pkgs.sssd}/lib/security/pam_sss.so"}
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${optionalString (config.services.sssd.enable && cfg.sssdStrictAccess)
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"account [default=bad success=ok user_unknown=ignore] ${pkgs.sssd}/lib/security/pam_sss.so"}
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${optionalString config.krb5.enable
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"account sufficient ${pam_krb5}/lib/security/pam_krb5.so"}
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${optionalString cfg.googleOsLoginAccountVerification ''
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account [success=ok ignore=ignore default=die] ${pkgs.google-compute-engine-oslogin}/lib/pam_oslogin_login.so
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account [success=ok default=ignore] ${pkgs.google-compute-engine-oslogin}/lib/pam_oslogin_admin.so
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''}
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# Authentication management.
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${optionalString cfg.googleOsLoginAuthentication
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"auth [success=done perm_denied=bad default=ignore] ${pkgs.google-compute-engine-oslogin}/lib/pam_oslogin_login.so"}
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${optionalString cfg.rootOK
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"auth sufficient pam_rootok.so"}
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${optionalString cfg.requireWheel
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"auth required pam_wheel.so use_uid"}
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${optionalString cfg.logFailures
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"auth required pam_tally.so"}
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${optionalString (config.security.pam.enableSSHAgentAuth && cfg.sshAgentAuth)
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"auth sufficient ${pkgs.pam_ssh_agent_auth}/libexec/pam_ssh_agent_auth.so file=~/.ssh/authorized_keys:~/.ssh/authorized_keys2:/etc/ssh/authorized_keys.d/%u"}
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${optionalString cfg.fprintAuth
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"auth sufficient ${pkgs.fprintd}/lib/security/pam_fprintd.so"}
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${let p11 = config.security.pam.p11; in optionalString cfg.p11Auth
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"auth ${p11.control} ${pam_p11}/lib/security/pam_p11.so ${pkgs.opensc}/lib/opensc-pkcs11.so"}
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${let u2f = config.security.pam.u2f; in optionalString cfg.u2fAuth
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"auth ${u2f.control} ${pkgs.pam_u2f}/lib/security/pam_u2f.so ${optionalString u2f.debug "debug"} ${optionalString (u2f.authFile != null) "authfile=${u2f.authFile}"} ${optionalString u2f.interactive "interactive"} ${optionalString u2f.cue "cue"}"}
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${optionalString cfg.usbAuth
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"auth sufficient ${pkgs.pam_usb}/lib/security/pam_usb.so"}
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${let oath = config.security.pam.oath; in optionalString cfg.oathAuth
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"auth requisite ${pkgs.oathToolkit}/lib/security/pam_oath.so window=${toString oath.window} usersfile=${toString oath.usersFile} digits=${toString oath.digits}"}
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${let yubi = config.security.pam.yubico; in optionalString cfg.yubicoAuth
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"auth ${yubi.control} ${pkgs.yubico-pam}/lib/security/pam_yubico.so mode=${toString yubi.mode} ${optionalString (yubi.mode == "client") "id=${toString yubi.id}"} ${optionalString yubi.debug "debug"}"}
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'' +
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# Modules in this block require having the password set in PAM_AUTHTOK.
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# pam_unix is marked as 'sufficient' on NixOS which means nothing will run
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# after it succeeds. Certain modules need to run after pam_unix
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# prompts the user for password so we run it once with 'required' at an
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# earlier point and it will run again with 'sufficient' further down.
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# We use try_first_pass the second time to avoid prompting password twice
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(optionalString (cfg.unixAuth &&
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(config.security.pam.enableEcryptfs
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|| cfg.pamMount
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|| cfg.enableKwallet
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|| cfg.enableGnomeKeyring
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|| cfg.googleAuthenticator.enable
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|| cfg.duoSecurity.enable)) ''
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auth required pam_unix.so ${optionalString cfg.allowNullPassword "nullok"} ${optionalString cfg.nodelay "nodelay"} likeauth
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${optionalString config.security.pam.enableEcryptfs
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"auth optional ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so unwrap"}
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${optionalString cfg.pamMount
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"auth optional ${pkgs.pam_mount}/lib/security/pam_mount.so"}
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${optionalString cfg.enableKwallet
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("auth optional ${pkgs.plasma5.kwallet-pam}/lib/security/pam_kwallet5.so" +
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" kwalletd=${pkgs.libsForQt5.kwallet.bin}/bin/kwalletd5")}
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${optionalString cfg.enableGnomeKeyring
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"auth optional ${pkgs.gnome3.gnome-keyring}/lib/security/pam_gnome_keyring.so"}
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${optionalString cfg.googleAuthenticator.enable
|
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"auth required ${pkgs.googleAuthenticator}/lib/security/pam_google_authenticator.so no_increment_hotp"}
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${optionalString cfg.duoSecurity.enable
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"auth required ${pkgs.duo-unix}/lib/security/pam_duo.so"}
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||||
'') + ''
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||||
${optionalString cfg.unixAuth
|
||||
"auth sufficient pam_unix.so ${optionalString cfg.allowNullPassword "nullok"} ${optionalString cfg.nodelay "nodelay"} likeauth try_first_pass"}
|
||||
${optionalString cfg.otpwAuth
|
||||
"auth sufficient ${pkgs.otpw}/lib/security/pam_otpw.so"}
|
||||
${optionalString use_ldap
|
||||
"auth sufficient ${pam_ldap}/lib/security/pam_ldap.so use_first_pass"}
|
||||
${optionalString config.services.sssd.enable
|
||||
"auth sufficient ${pkgs.sssd}/lib/security/pam_sss.so use_first_pass"}
|
||||
${optionalString config.krb5.enable ''
|
||||
auth [default=ignore success=1 service_err=reset] ${pam_krb5}/lib/security/pam_krb5.so use_first_pass
|
||||
auth [default=die success=done] ${pam_ccreds}/lib/security/pam_ccreds.so action=validate use_first_pass
|
||||
auth sufficient ${pam_ccreds}/lib/security/pam_ccreds.so action=store use_first_pass
|
||||
''}
|
||||
auth required pam_deny.so
|
||||
|
||||
# Password management.
|
||||
password sufficient pam_unix.so nullok sha512
|
||||
${optionalString config.security.pam.enableEcryptfs
|
||||
"password optional ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so"}
|
||||
${optionalString cfg.pamMount
|
||||
"password optional ${pkgs.pam_mount}/lib/security/pam_mount.so"}
|
||||
${optionalString use_ldap
|
||||
"password sufficient ${pam_ldap}/lib/security/pam_ldap.so"}
|
||||
${optionalString config.services.sssd.enable
|
||||
"password sufficient ${pkgs.sssd}/lib/security/pam_sss.so use_authtok"}
|
||||
${optionalString config.krb5.enable
|
||||
"password sufficient ${pam_krb5}/lib/security/pam_krb5.so use_first_pass"}
|
||||
${optionalString config.services.samba.syncPasswordsByPam
|
||||
"password optional ${pkgs.samba}/lib/security/pam_smbpass.so nullok use_authtok try_first_pass"}
|
||||
${optionalString cfg.enableGnomeKeyring
|
||||
"password optional ${pkgs.gnome3.gnome-keyring}/lib/security/pam_gnome_keyring.so use_authtok"}
|
||||
|
||||
# Session management.
|
||||
${optionalString cfg.setEnvironment ''
|
||||
session required pam_env.so conffile=${config.system.build.pamEnvironment} readenv=0
|
||||
''}
|
||||
session required pam_unix.so
|
||||
${optionalString cfg.setLoginUid
|
||||
"session ${
|
||||
if config.boot.isContainer then "optional" else "required"
|
||||
} pam_loginuid.so"}
|
||||
${optionalString cfg.makeHomeDir
|
||||
"session required ${pkgs.pam}/lib/security/pam_mkhomedir.so silent skel=${config.security.pam.makeHomeDir.skelDirectory} umask=0022"}
|
||||
${optionalString cfg.updateWtmp
|
||||
"session required ${pkgs.pam}/lib/security/pam_lastlog.so silent"}
|
||||
${optionalString config.security.pam.enableEcryptfs
|
||||
"session optional ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so"}
|
||||
${optionalString use_ldap
|
||||
"session optional ${pam_ldap}/lib/security/pam_ldap.so"}
|
||||
${optionalString config.services.sssd.enable
|
||||
"session optional ${pkgs.sssd}/lib/security/pam_sss.so"}
|
||||
${optionalString config.krb5.enable
|
||||
"session optional ${pam_krb5}/lib/security/pam_krb5.so"}
|
||||
${optionalString cfg.otpwAuth
|
||||
"session optional ${pkgs.otpw}/lib/security/pam_otpw.so"}
|
||||
${optionalString cfg.startSession
|
||||
"session optional ${pkgs.systemd}/lib/security/pam_systemd.so"}
|
||||
${optionalString cfg.forwardXAuth
|
||||
"session optional pam_xauth.so xauthpath=${pkgs.xorg.xauth}/bin/xauth systemuser=99"}
|
||||
${optionalString (cfg.limits != [])
|
||||
"session required ${pkgs.pam}/lib/security/pam_limits.so conf=${makeLimitsConf cfg.limits}"}
|
||||
${optionalString (cfg.showMotd && config.users.motd != null)
|
||||
"session optional ${pkgs.pam}/lib/security/pam_motd.so motd=${motd}"}
|
||||
${optionalString cfg.pamMount
|
||||
"session optional ${pkgs.pam_mount}/lib/security/pam_mount.so"}
|
||||
${optionalString (cfg.enableAppArmor && config.security.apparmor.enable)
|
||||
"session optional ${pkgs.apparmor-pam}/lib/security/pam_apparmor.so order=user,group,default debug"}
|
||||
${optionalString (cfg.enableKwallet)
|
||||
("session optional ${pkgs.plasma5.kwallet-pam}/lib/security/pam_kwallet5.so" +
|
||||
" kwalletd=${pkgs.libsForQt5.kwallet.bin}/bin/kwalletd5")}
|
||||
${optionalString (cfg.enableGnomeKeyring)
|
||||
"session optional ${pkgs.gnome3.gnome-keyring}/lib/security/pam_gnome_keyring.so auto_start"}
|
||||
${optionalString (config.virtualisation.lxc.lxcfs.enable)
|
||||
"session optional ${pkgs.lxc}/lib/security/pam_cgfs.so -c all"}
|
||||
'');
|
||||
};
|
||||
|
||||
};
|
||||
|
||||
|
||||
inherit (pkgs) pam_krb5 pam_ccreds;
|
||||
|
||||
use_ldap = (config.users.ldap.enable && config.users.ldap.loginPam);
|
||||
pam_ldap = if config.users.ldap.daemon.enable then pkgs.nss_pam_ldapd else pkgs.pam_ldap;
|
||||
|
||||
# Create a limits.conf(5) file.
|
||||
makeLimitsConf = limits:
|
||||
pkgs.writeText "limits.conf"
|
||||
(concatMapStrings ({ domain, type, item, value }:
|
||||
"${domain} ${type} ${item} ${toString value}\n")
|
||||
limits);
|
||||
|
||||
motd = pkgs.writeText "motd" config.users.motd;
|
||||
|
||||
makePAMService = name: service:
|
||||
{ name = "pam.d/${name}";
|
||||
value.source = pkgs.writeText "${name}.pam" service.text;
|
||||
};
|
||||
|
||||
in
|
||||
|
||||
{
|
||||
|
||||
imports = [
|
||||
(mkRenamedOptionModule [ "security" "pam" "enableU2F" ] [ "security" "pam" "u2f" "enable" ])
|
||||
];
|
||||
|
||||
###### interface
|
||||
|
||||
options = {
|
||||
|
||||
security.pam.loginLimits = mkOption {
|
||||
default = [];
|
||||
example =
|
||||
[ { domain = "ftp";
|
||||
type = "hard";
|
||||
item = "nproc";
|
||||
value = "0";
|
||||
}
|
||||
{ domain = "@student";
|
||||
type = "-";
|
||||
item = "maxlogins";
|
||||
value = "4";
|
||||
}
|
||||
];
|
||||
|
||||
description =
|
||||
'' Define resource limits that should apply to users or groups.
|
||||
Each item in the list should be an attribute set with a
|
||||
<varname>domain</varname>, <varname>type</varname>,
|
||||
<varname>item</varname>, and <varname>value</varname>
|
||||
attribute. The syntax and semantics of these attributes
|
||||
must be that described in the limits.conf(5) man page.
|
||||
|
||||
Note that these limits do not apply to systemd services,
|
||||
whose limits can be changed via <option>systemd.extraConfig</option>
|
||||
instead.
|
||||
'';
|
||||
};
|
||||
|
||||
security.pam.services = mkOption {
|
||||
default = [];
|
||||
type = with types; loaOf (submodule pamOpts);
|
||||
description =
|
||||
''
|
||||
This option defines the PAM services. A service typically
|
||||
corresponds to a program that uses PAM,
|
||||
e.g. <command>login</command> or <command>passwd</command>.
|
||||
Each attribute of this set defines a PAM service, with the attribute name
|
||||
defining the name of the service.
|
||||
'';
|
||||
};
|
||||
|
||||
security.pam.makeHomeDir.skelDirectory = mkOption {
|
||||
type = types.str;
|
||||
default = "/var/empty";
|
||||
example = "/etc/skel";
|
||||
description = ''
|
||||
Path to skeleton directory whose contents are copied to home
|
||||
directories newly created by <literal>pam_mkhomedir</literal>.
|
||||
'';
|
||||
};
|
||||
|
||||
security.pam.enableSSHAgentAuth = mkOption {
|
||||
type = types.bool;
|
||||
default = false;
|
||||
description =
|
||||
''
|
||||
Enable sudo logins if the user's SSH agent provides a key
|
||||
present in <filename>~/.ssh/authorized_keys</filename>.
|
||||
This allows machines to exclusively use SSH keys instead of
|
||||
passwords.
|
||||
'';
|
||||
};
|
||||
|
||||
security.pam.enableOTPW = mkEnableOption "the OTPW (one-time password) PAM module";
|
||||
|
||||
security.pam.p11 = {
|
||||
enable = mkOption {
|
||||
default = false;
|
||||
type = types.bool;
|
||||
description = ''
|
||||
Enables P11 PAM (<literal>pam_p11</literal>) module.
|
||||
|
||||
If set, users can log in with SSH keys and PKCS#11 tokens.
|
||||
|
||||
More information can be found <link
|
||||
xlink:href="https://github.com/OpenSC/pam_p11">here</link>.
|
||||
'';
|
||||
};
|
||||
|
||||
control = mkOption {
|
||||
default = "sufficient";
|
||||
type = types.enum [ "required" "requisite" "sufficient" "optional" ];
|
||||
description = ''
|
||||
This option sets pam "control".
|
||||
If you want to have multi factor authentication, use "required".
|
||||
If you want to use the PKCS#11 device instead of the regular password,
|
||||
use "sufficient".
|
||||
|
||||
Read
|
||||
<citerefentry>
|
||||
<refentrytitle>pam.conf</refentrytitle>
|
||||
<manvolnum>5</manvolnum>
|
||||
</citerefentry>
|
||||
for better understanding of this option.
|
||||
'';
|
||||
};
|
||||
};
|
||||
|
||||
security.pam.u2f = {
|
||||
enable = mkOption {
|
||||
default = false;
|
||||
type = types.bool;
|
||||
description = ''
|
||||
Enables U2F PAM (<literal>pam-u2f</literal>) module.
|
||||
|
||||
If set, users listed in
|
||||
<filename>$XDG_CONFIG_HOME/Yubico/u2f_keys</filename> (or
|
||||
<filename>$HOME/.config/Yubico/u2f_keys</filename> if XDG variable is
|
||||
not set) are able to log in with the associated U2F key. The path can
|
||||
be changed using <option>security.pam.u2f.authFile</option> option.
|
||||
|
||||
File format is:
|
||||
<literal>username:first_keyHandle,first_public_key: second_keyHandle,second_public_key</literal>
|
||||
This file can be generated using <command>pamu2fcfg</command> command.
|
||||
|
||||
More information can be found <link
|
||||
xlink:href="https://developers.yubico.com/pam-u2f/">here</link>.
|
||||
'';
|
||||
};
|
||||
|
||||
authFile = mkOption {
|
||||
default = null;
|
||||
type = with types; nullOr path;
|
||||
description = ''
|
||||
By default <literal>pam-u2f</literal> module reads the keys from
|
||||
<filename>$XDG_CONFIG_HOME/Yubico/u2f_keys</filename> (or
|
||||
<filename>$HOME/.config/Yubico/u2f_keys</filename> if XDG variable is
|
||||
not set).
|
||||
|
||||
If you want to change auth file locations or centralize database (for
|
||||
example use <filename>/etc/u2f-mappings</filename>) you can set this
|
||||
option.
|
||||
|
||||
File format is:
|
||||
<literal>username:first_keyHandle,first_public_key: second_keyHandle,second_public_key</literal>
|
||||
This file can be generated using <command>pamu2fcfg</command> command.
|
||||
|
||||
More information can be found <link
|
||||
xlink:href="https://developers.yubico.com/pam-u2f/">here</link>.
|
||||
'';
|
||||
};
|
||||
|
||||
control = mkOption {
|
||||
default = "sufficient";
|
||||
type = types.enum [ "required" "requisite" "sufficient" "optional" ];
|
||||
description = ''
|
||||
This option sets pam "control".
|
||||
If you want to have multi factor authentication, use "required".
|
||||
If you want to use U2F device instead of regular password, use "sufficient".
|
||||
|
||||
Read
|
||||
<citerefentry>
|
||||
<refentrytitle>pam.conf</refentrytitle>
|
||||
<manvolnum>5</manvolnum>
|
||||
</citerefentry>
|
||||
for better understanding of this option.
|
||||
'';
|
||||
};
|
||||
|
||||
debug = mkOption {
|
||||
default = false;
|
||||
type = types.bool;
|
||||
description = ''
|
||||
Debug output to stderr.
|
||||
'';
|
||||
};
|
||||
|
||||
interactive = mkOption {
|
||||
default = false;
|
||||
type = types.bool;
|
||||
description = ''
|
||||
Set to prompt a message and wait before testing the presence of a U2F device.
|
||||
Recommended if your device doesn’t have a tactile trigger.
|
||||
'';
|
||||
};
|
||||
|
||||
cue = mkOption {
|
||||
default = false;
|
||||
type = types.bool;
|
||||
description = ''
|
||||
By default <literal>pam-u2f</literal> module does not inform user
|
||||
that he needs to use the u2f device, it just waits without a prompt.
|
||||
|
||||
If you set this option to <literal>true</literal>,
|
||||
<literal>cue</literal> option is added to <literal>pam-u2f</literal>
|
||||
module and reminder message will be displayed.
|
||||
'';
|
||||
};
|
||||
};
|
||||
|
||||
security.pam.yubico = {
|
||||
enable = mkOption {
|
||||
default = false;
|
||||
type = types.bool;
|
||||
description = ''
|
||||
Enables Yubico PAM (<literal>yubico-pam</literal>) module.
|
||||
|
||||
If set, users listed in
|
||||
<filename>~/.yubico/authorized_yubikeys</filename>
|
||||
are able to log in with the associated Yubikey tokens.
|
||||
|
||||
The file must have only one line:
|
||||
<literal>username:yubikey_token_id1:yubikey_token_id2</literal>
|
||||
More information can be found <link
|
||||
xlink:href="https://developers.yubico.com/yubico-pam/">here</link>.
|
||||
'';
|
||||
};
|
||||
control = mkOption {
|
||||
default = "sufficient";
|
||||
type = types.enum [ "required" "requisite" "sufficient" "optional" ];
|
||||
description = ''
|
||||
This option sets pam "control".
|
||||
If you want to have multi factor authentication, use "required".
|
||||
If you want to use Yubikey instead of regular password, use "sufficient".
|
||||
|
||||
Read
|
||||
<citerefentry>
|
||||
<refentrytitle>pam.conf</refentrytitle>
|
||||
<manvolnum>5</manvolnum>
|
||||
</citerefentry>
|
||||
for better understanding of this option.
|
||||
'';
|
||||
};
|
||||
id = mkOption {
|
||||
example = "42";
|
||||
type = types.str;
|
||||
description = "client id";
|
||||
};
|
||||
|
||||
debug = mkOption {
|
||||
default = false;
|
||||
type = types.bool;
|
||||
description = ''
|
||||
Debug output to stderr.
|
||||
'';
|
||||
};
|
||||
mode = mkOption {
|
||||
default = "client";
|
||||
type = types.enum [ "client" "challenge-response" ];
|
||||
description = ''
|
||||
Mode of operation.
|
||||
|
||||
Use "client" for online validation with a YubiKey validation service such as
|
||||
the YubiCloud.
|
||||
|
||||
Use "challenge-response" for offline validation using YubiKeys with HMAC-SHA-1
|
||||
Challenge-Response configurations. See the man-page ykpamcfg(1) for further
|
||||
details on how to configure offline Challenge-Response validation.
|
||||
|
||||
More information can be found <link
|
||||
xlink:href="https://developers.yubico.com/yubico-pam/Authentication_Using_Challenge-Response.html">here</link>.
|
||||
'';
|
||||
};
|
||||
};
|
||||
|
||||
security.pam.enableEcryptfs = mkEnableOption "eCryptfs PAM module (mounting ecryptfs home directory on login)";
|
||||
|
||||
users.motd = mkOption {
|
||||
default = null;
|
||||
example = "Today is Sweetmorn, the 4th day of The Aftermath in the YOLD 3178.";
|
||||
type = types.nullOr types.lines;
|
||||
description = "Message of the day shown to users when they log in.";
|
||||
};
|
||||
|
||||
};
|
||||
|
||||
|
||||
###### implementation
|
||||
|
||||
config = {
|
||||
|
||||
environment.systemPackages =
|
||||
# Include the PAM modules in the system path mostly for the manpages.
|
||||
[ pkgs.pam ]
|
||||
++ optional config.users.ldap.enable pam_ldap
|
||||
++ optional config.services.sssd.enable pkgs.sssd
|
||||
++ optionals config.krb5.enable [pam_krb5 pam_ccreds]
|
||||
++ optionals config.security.pam.enableOTPW [ pkgs.otpw ]
|
||||
++ optionals config.security.pam.oath.enable [ pkgs.oathToolkit ]
|
||||
++ optionals config.security.pam.p11.enable [ pam_p11 ]
|
||||
++ optionals config.security.pam.u2f.enable [ pkgs.pam_u2f ];
|
||||
|
||||
boot.supportedFilesystems = optionals config.security.pam.enableEcryptfs [ "ecryptfs" ];
|
||||
|
||||
security.wrappers = {
|
||||
unix_chkpwd = {
|
||||
source = "${pkgs.pam}/sbin/unix_chkpwd.orig";
|
||||
owner = "root";
|
||||
setuid = true;
|
||||
};
|
||||
};
|
||||
|
||||
environment.etc = mapAttrs' makePAMService config.security.pam.services;
|
||||
|
||||
security.pam.services =
|
||||
{ other.text =
|
||||
''
|
||||
auth required pam_warn.so
|
||||
auth required pam_deny.so
|
||||
account required pam_warn.so
|
||||
account required pam_deny.so
|
||||
password required pam_warn.so
|
||||
password required pam_deny.so
|
||||
session required pam_warn.so
|
||||
session required pam_deny.so
|
||||
'';
|
||||
|
||||
# Most of these should be moved to specific modules.
|
||||
i3lock = {};
|
||||
i3lock-color = {};
|
||||
vlock = {};
|
||||
xlock = {};
|
||||
xscreensaver = {};
|
||||
|
||||
runuser = { rootOK = true; unixAuth = false; setEnvironment = false; };
|
||||
|
||||
/* FIXME: should runuser -l start a systemd session? Currently
|
||||
it complains "Cannot create session: Already running in a
|
||||
session". */
|
||||
runuser-l = { rootOK = true; unixAuth = false; };
|
||||
};
|
||||
|
||||
};
|
||||
|
||||
}
|
||||
23
nixops/pam_p11/pam_p11.nix
Normal file
23
nixops/pam_p11/pam_p11.nix
Normal file
@ -0,0 +1,23 @@
|
||||
{ stdenv, fetchFromGitHub, autoreconfHook, pkg-config, openssl, libp11, pam }:
|
||||
|
||||
stdenv.mkDerivation rec {
|
||||
pname = "pam_p11";
|
||||
version = "0.3.1";
|
||||
|
||||
src = fetchFromGitHub {
|
||||
owner = "OpenSC";
|
||||
repo = "pam_p11";
|
||||
rev = "pam_p11-${version}";
|
||||
sha256 = "1caidy18rq5zk82d51x8vwidmkhwmanf3qm25x1yrdlbhxv6m7lk";
|
||||
};
|
||||
|
||||
patchPhase =
|
||||
''
|
||||
substituteInPlace src/match_openssh.c --replace \
|
||||
'"%s/.ssh/authorized_keys", pw->pw_dir)' \
|
||||
'"/etc/ssh/authorized_keys.d/%s", pw->pw_name)'
|
||||
'';
|
||||
|
||||
nativeBuildInputs = [ autoreconfHook pkg-config ];
|
||||
buildInputs = [ pam openssl libp11 ];
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user