111 lines
2.8 KiB
Nix
111 lines
2.8 KiB
Nix
# Configuration for the pwdutils suite of tools: passwd, useradd, etc.
|
|
|
|
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
|
|
loginDefs =
|
|
''
|
|
DEFAULT_HOME yes
|
|
|
|
SYS_UID_MIN 400
|
|
SYS_UID_MAX 499
|
|
UID_MIN 1000
|
|
UID_MAX 29999
|
|
|
|
SYS_GID_MIN 400
|
|
SYS_GID_MAX 499
|
|
GID_MIN 1000
|
|
GID_MAX 29999
|
|
|
|
TTYGROUP tty
|
|
TTYPERM 0620
|
|
|
|
# Ensure privacy for newly created home directories.
|
|
UMASK 077
|
|
|
|
# Uncomment this to allow non-root users to change their account
|
|
#information. This should be made configurable.
|
|
#CHFN_RESTRICT frwh
|
|
|
|
'';
|
|
|
|
in
|
|
|
|
{
|
|
|
|
###### interface
|
|
|
|
options = {
|
|
|
|
users.defaultUserShell = lib.mkOption {
|
|
description = ''
|
|
This option defines the default shell assigned to user
|
|
accounts. This must not be a store path, since the path is
|
|
used outside the store (in particular in /etc/passwd).
|
|
Rather, it should be the path of a symlink that points to the
|
|
actual shell in the Nix store.
|
|
'';
|
|
example = "/run/current-system/sw/bin/zsh";
|
|
type = types.path;
|
|
};
|
|
|
|
};
|
|
|
|
|
|
###### implementation
|
|
|
|
config = {
|
|
|
|
environment.systemPackages =
|
|
lib.optional config.users.mutableUsers pkgs.shadow;
|
|
|
|
environment.etc =
|
|
[ { # /etc/login.defs: global configuration for pwdutils. You
|
|
# cannot login without it!
|
|
source = pkgs.writeText "login.defs" loginDefs;
|
|
target = "login.defs";
|
|
}
|
|
|
|
{ # /etc/default/useradd: configuration for useradd.
|
|
source = pkgs.writeText "useradd"
|
|
''
|
|
GROUP=100
|
|
HOME=/home
|
|
SHELL=${config.users.defaultUserShell}
|
|
'';
|
|
target = "default/useradd";
|
|
}
|
|
];
|
|
|
|
security.pam.services =
|
|
{ chsh = { rootOK = true; };
|
|
chfn = { rootOK = true; };
|
|
su = { rootOK = true; forwardXAuth = true; logFailures = true; };
|
|
passwd = {};
|
|
# Note: useradd, groupadd etc. aren't setuid root, so it
|
|
# doesn't really matter what the PAM config says as long as it
|
|
# lets root in.
|
|
useradd = { rootOK = true; };
|
|
usermod = { rootOK = true; };
|
|
userdel = { rootOK = true; };
|
|
groupadd = { rootOK = true; };
|
|
groupmod = { rootOK = true; };
|
|
groupmems = { rootOK = true; };
|
|
groupdel = { rootOK = true; };
|
|
login = { startSession = true; allowNullPassword = true; showMotd = true; updateWtmp = true; };
|
|
chpasswd = { rootOK = true; };
|
|
chgpasswd = { rootOK = true; };
|
|
};
|
|
|
|
security.setuidPrograms = [ "su" "chfn" ]
|
|
++ lib.optionals config.users.mutableUsers
|
|
[ "passwd" "sg" "newgrp"
|
|
"newuidmap" "newgidmap" # new in shadow 4.2.x
|
|
];
|
|
|
|
};
|
|
|
|
}
|