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{ config, lib, pkgs, ... }:
with lib;
let
portSpec = name: ''
port ${name}
type pipe
protocol ${if builtins.hasAttr name config.services.uucp.protocols then config.services.uucp.protocols."${name}" else config.services.uucp.defaultProtocol}
reliable true
command ${pkgs.openssh}/bin/ssh -x -o batchmode=yes ${name}
'';
sysSpec = name: ''
system ${name}
time Any
port ${name}
chat ""
protocol ${if builtins.hasAttr name config.services.uucp.protocols then config.services.uucp.protocols."${name}" else config.services.uucp.defaultProtocol}
command-path ${concatStringsSep " " config.services.uucp.commandPath}
commands ${concatStringsSep " " (if builtins.hasAttr name config.services.uucp.commands then config.services.uucp.commands."${name}" else config.services.uucp.defaultCommands)}
'';
in {
options = {
services.uucp = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
If enabled we set up an account accesible via uucp over ssh
'';
};
nodeName = mkOption {
type = types.str;
default = "nixos";
description = "uucp node name";
};
sshUser = mkOption {
type = types.attrs;
default = {};
description = "Overrides for the local uucp linux-user";
};
sshConfig = mkOption {
type = types.str;
default = "";
description = "~uucp/.ssh/config";
};
remoteNodes = mkOption {
type = types.listOf types.str;
default = {};
description = ''
Ports to set up
Names will probably need to be configured in sshConfig
'';
};
commandPath = mkOption {
type = types.listOf types.path;
default = [ "${pkgs.rmail}/bin" ];
description = ''
Command search path for all systems
'';
};
defaultCommands = mkOption {
type = types.listOf types.string;
default = ["rmail"];
description = "Commands allowed for remotes without explicit override";
};
commands = mkOption {
type = types.attrsOf (types.listOf types.string);
default = {};
description = "Override commands for specific remotes";
};
defaultProtocol = mkOption {
type = types.string;
default = "e";
description = "UUCP protocol to use within ssh unless overriden";
};
protocols = mkOption {
type = types.attrsOf types.string;
default = {};
description = "UUCP protocols to use for specific remotes";
};
spoolDir = mkOption {
type = types.path;
default = "/var/spool/uucp";
description = "Spool directory";
};
lockDir = mkOption {
type = types.path;
default = "/var/spool/uucp";
description = "Lock directory";
};
pubDir = mkOption {
type = types.path;
default = "/var/spool/uucppublic";
description = "Public directory";
};
logFile = mkOption {
type = types.path;
default = "/var/log/uucp";
description = "Log file";
};
statFile = mkOption {
type = types.path;
default = "/var/log/uucp.stat";
description = "Statistics file";
};
debugFile = mkOption {
type = types.path;
default = "/var/log/uucp.debug";
description = "Debug file";
};
interval = mkOption {
type = types.nullOr types.str;
default = "00 * * * *";
description = ''
Specification of when to run `uucico' in format used by cron
The default is to do so every hour
'';
};
extraConfig = mkOption {
type = types.string;
default = "";
description = "Extra configuration to append verbatim to `/etc/uucp/config'";
};
extraSys = mkOption {
type = types.string;
default = ''
protocol-parameter g packet-size 4096
'';
description = "Extra configuration to prepend verbatim to `/etc/uucp/sys`";
};
};
};
config = mkIf config.services.uucp.enable {
environment.etc."uucp/config" = {
text = ''
hostname ${config.services.uucp.nodeName}
spool ${config.services.uucp.spoolDir}
lockdir ${config.services.uucp.lockDir}
pubdir ${config.services.uucp.pubDir}
logfile ${config.services.uucp.logFile}
statfile ${config.services.uucp.statFile}
debugfile ${config.services.uucp.debugFile}
${config.services.uucp.extraConfig}
'';
};
users.users."uucp" = {
name = "uucp";
isSystemUser = true;
isNormalUser = false;
createHome = true;
home = config.services.uucp.spoolDir;
description = "User for uucp over ssh";
useDefaultShell = true;
} // config.services.uucp.sshUser;
system.activationScripts."uucp-sshconfig" = ''
mkdir -p ${config.users.users."uucp".home}/.ssh
chown ${config.users.users."uucp".name}:${config.users.users."uucp".group} ${config.users.users."uucp".home}/.ssh
chmod 700 ${config.users.users."uucp".home}/.ssh
ln -fs ${builtins.toFile "ssh-config" config.services.uucp.sshConfig} ${config.users.users."uucp".home}/.ssh/config
'';
system.activationScripts."uucp-logs" = ''
touch ${config.services.uucp.logFile}
chown ${config.users.users."uucp".name}:${config.users.users."uucp".group} ${config.services.uucp.logFile}
chmod 644 ${config.services.uucp.logFile}
touch ${config.services.uucp.statFile}
chown ${config.users.users."uucp".name}:${config.users.users."uucp".group} ${config.services.uucp.statFile}
chmod 644 ${config.services.uucp.statFile}
touch ${config.services.uucp.debugFile}
chown ${config.users.users."uucp".name}:${config.users.users."uucp".group} ${config.services.uucp.debugFile}
chmod 644 ${config.services.uucp.debugFile}
'';
environment.etc."uucp/port" = {
text = ''
port ssh
type stdin
protocol e
'' + concatStringsSep "\n" (map portSpec config.services.uucp.remoteNodes);
};
environment.etc."uucp/sys" = {
text = config.services.uucp.extraSys + "\n" + concatStringsSep "\n" (map sysSpec config.services.uucp.remoteNodes);
};
security.setuidOwners = map (p: {program = p; owner = "root"; group = "root"; setuid = true; setgid = false;}) ["uucico" "uuxqt" "cu" "uucp" "uuname" "uustat" "uux"];
nixpkgs.config.packageOverrides = pkgs: with pkgs; {
uucp = stdenv.lib.overrideDerivation uucp (oldAttrs: {
configureFlags = "--with-newconfigdir=/etc/uucp";
patches = [
(pkgs.writeText "mailprogram" ''
policy.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/policy.h b/policy.h
index 5afe34b..8e92c8b 100644
--- a/policy.h
+++ b/policy.h
@@ -240,7 +240,7 @@
the sendmail choice below. Otherwise, select one of the other
choices as appropriate. */
#if 1
-#define MAIL_PROGRAM "/usr/lib/sendmail -t"
+#define MAIL_PROGRAM "/var/setuid-wrappers/sendmail -t"
/* #define MAIL_PROGRAM "/usr/sbin/sendmail -t" */
#define MAIL_PROGRAM_TO_BODY 1
#define MAIL_PROGRAM_SUBJECT_BODY 1
'')
];
});
rmail = pkgs.writeScriptBin "rmail" ''
#!${pkgs.stdenv.shell}
# Dummy UUCP rmail command for postfix/qmail systems
IFS=" " read junk from junk junk junk junk junk junk junk relay
case "$from" in
*[@!]*) ;;
*) from="$from@$relay";;
esac
exec /var/setuid-wrappers/sendmail -i -f "$from" -- "$@"
'';
};
environment.systemPackages = with pkgs; [
uucp
];
services.cron.systemCronJobs = (map (name: "${config.services.uucp.interval} /var/setuid-wrappers/uucico -D -s ${name}") (if (config.services.uucp.interval != null) then config.services.uucp.remoteNodes else []));
};
}
|
