445 lines
14 KiB
Nix
445 lines
14 KiB
Nix
{ config, options, pkgs, lib, ... }:
|
||
|
||
with lib;
|
||
|
||
let
|
||
|
||
cfg = config.services.rspamd;
|
||
postfixCfg = config.services.postfix;
|
||
|
||
bindSocketOpts = {options, config, ... }: {
|
||
options = {
|
||
socket = mkOption {
|
||
type = types.str;
|
||
example = "localhost:11333";
|
||
description = ''
|
||
Socket for this worker to listen on in a format acceptable by rspamd.
|
||
'';
|
||
};
|
||
mode = mkOption {
|
||
type = types.str;
|
||
default = "0644";
|
||
description = "Mode to set on unix socket";
|
||
};
|
||
owner = mkOption {
|
||
type = types.str;
|
||
default = "${cfg.user}";
|
||
description = "Owner to set on unix socket";
|
||
};
|
||
group = mkOption {
|
||
type = types.str;
|
||
default = "${cfg.group}";
|
||
description = "Group to set on unix socket";
|
||
};
|
||
rawEntry = mkOption {
|
||
type = types.str;
|
||
internal = true;
|
||
};
|
||
};
|
||
config.rawEntry = let
|
||
maybeOption = option:
|
||
optionalString options.${option}.isDefined " ${option}=${config.${option}}";
|
||
in
|
||
if (!(hasPrefix "/" config.socket)) then "${config.socket}"
|
||
else "${config.socket}${maybeOption "mode"}${maybeOption "owner"}${maybeOption "group"}";
|
||
};
|
||
|
||
traceWarning = w: x: builtins.trace "[1;31mwarning: ${w}[0m" x;
|
||
|
||
workerOpts = { name, options, ... }: {
|
||
options = {
|
||
enable = mkOption {
|
||
type = types.nullOr types.bool;
|
||
default = null;
|
||
description = "Whether to run the rspamd worker.";
|
||
};
|
||
name = mkOption {
|
||
type = types.nullOr types.str;
|
||
default = name;
|
||
description = "Name of the worker";
|
||
};
|
||
type = mkOption {
|
||
type = types.nullOr (types.enum [
|
||
"normal" "controller" "fuzzy" "rspamd_proxy" "lua" "proxy"
|
||
]);
|
||
description = ''
|
||
The type of this worker. The type <literal>proxy</literal> is
|
||
deprecated and only kept for backwards compatibility and should be
|
||
replaced with <literal>rspamd_proxy</literal>.
|
||
'';
|
||
apply = let
|
||
from = "services.rspamd.workers.\"${name}\".type";
|
||
files = options.type.files;
|
||
warning = "The option `${from}` defined in ${showFiles files} has enum value `proxy` which has been renamed to `rspamd_proxy`";
|
||
in x: if x == "proxy" then traceWarning warning "rspamd_proxy" else x;
|
||
};
|
||
bindSockets = mkOption {
|
||
type = types.listOf (types.either types.str (types.submodule bindSocketOpts));
|
||
default = [];
|
||
description = ''
|
||
List of sockets to listen, in format acceptable by rspamd
|
||
'';
|
||
example = [{
|
||
socket = "/run/rspamd.sock";
|
||
mode = "0666";
|
||
owner = "rspamd";
|
||
} "*:11333"];
|
||
apply = value: map (each: if (isString each)
|
||
then if (isUnixSocket each)
|
||
then {socket = each; owner = cfg.user; group = cfg.group; mode = "0644"; rawEntry = "${each}";}
|
||
else {socket = each; rawEntry = "${each}";}
|
||
else each) value;
|
||
};
|
||
count = mkOption {
|
||
type = types.nullOr types.int;
|
||
default = null;
|
||
description = ''
|
||
Number of worker instances to run
|
||
'';
|
||
};
|
||
includes = mkOption {
|
||
type = types.listOf types.str;
|
||
default = [];
|
||
description = ''
|
||
List of files to include in configuration
|
||
'';
|
||
};
|
||
extraConfig = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
description = "Additional entries to put verbatim into worker section of rspamd config file.";
|
||
};
|
||
};
|
||
config = mkIf (name == "normal" || name == "controller" || name == "fuzzy" || name == "rspamd_proxy") {
|
||
type = mkDefault name;
|
||
includes = mkDefault [ "$CONFDIR/worker-${if name == "rspamd_proxy" then "proxy" else name}.inc" ];
|
||
bindSockets =
|
||
let
|
||
unixSocket = name: {
|
||
mode = "0660";
|
||
socket = "/run/rspamd/${name}.sock";
|
||
owner = cfg.user;
|
||
group = cfg.group;
|
||
};
|
||
in mkDefault (if name == "normal" then [(unixSocket "rspamd")]
|
||
else if name == "controller" then [ "localhost:11334" ]
|
||
else if name == "rspamd_proxy" then [ (unixSocket "proxy") ]
|
||
else [] );
|
||
};
|
||
};
|
||
|
||
isUnixSocket = socket: hasPrefix "/" (if (isString socket) then socket else socket.socket);
|
||
|
||
mkBindSockets = enabled: socks: concatStringsSep "\n "
|
||
(flatten (map (each: "bind_socket = \"${each.rawEntry}\";") socks));
|
||
|
||
rspamdConfFile = pkgs.writeText "rspamd.conf"
|
||
''
|
||
.include "$CONFDIR/common.conf"
|
||
|
||
options {
|
||
pidfile = "$RUNDIR/rspamd.pid";
|
||
.include "$CONFDIR/options.inc"
|
||
.include(try=true; priority=1,duplicate=merge) "$LOCAL_CONFDIR/local.d/options.inc"
|
||
.include(try=true; priority=10) "$LOCAL_CONFDIR/override.d/options.inc"
|
||
}
|
||
|
||
logging {
|
||
type = "syslog";
|
||
.include "$CONFDIR/logging.inc"
|
||
.include(try=true; priority=1,duplicate=merge) "$LOCAL_CONFDIR/local.d/logging.inc"
|
||
.include(try=true; priority=10) "$LOCAL_CONFDIR/override.d/logging.inc"
|
||
}
|
||
|
||
${concatStringsSep "\n" (mapAttrsToList (name: value: let
|
||
includeName = if name == "rspamd_proxy" then "proxy" else name;
|
||
tryOverride = boolToString (value.extraConfig == "");
|
||
in ''
|
||
worker "${value.type}" {
|
||
type = "${value.type}";
|
||
${optionalString (value.enable != null)
|
||
"enabled = ${if value.enable != false then "yes" else "no"};"}
|
||
${mkBindSockets value.enable value.bindSockets}
|
||
${optionalString (value.count != null) "count = ${toString value.count};"}
|
||
${concatStringsSep "\n " (map (each: ".include \"${each}\"") value.includes)}
|
||
.include(try=true; priority=1,duplicate=merge) "$LOCAL_CONFDIR/local.d/worker-${includeName}.inc"
|
||
.include(try=${tryOverride}; priority=10) "$LOCAL_CONFDIR/override.d/worker-${includeName}.inc"
|
||
}
|
||
'') cfg.workers)}
|
||
|
||
${optionalString (cfg.extraConfig != "") ''
|
||
.include(priority=10) "$LOCAL_CONFDIR/override.d/extra-config.inc"
|
||
''}
|
||
'';
|
||
|
||
filterFiles = files: filterAttrs (n: v: v.enable) files;
|
||
rspamdDir = pkgs.linkFarm "etc-rspamd-dir" (
|
||
(mapAttrsToList (name: file: { name = "local.d/${name}"; path = file.source; }) (filterFiles cfg.locals)) ++
|
||
(mapAttrsToList (name: file: { name = "override.d/${name}"; path = file.source; }) (filterFiles cfg.overrides)) ++
|
||
(optional (cfg.localLuaRules != null) { name = "rspamd.local.lua"; path = cfg.localLuaRules; }) ++
|
||
[ { name = "rspamd.conf"; path = rspamdConfFile; } ]
|
||
);
|
||
|
||
configFileModule = prefix: { name, config, ... }: {
|
||
options = {
|
||
enable = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
description = ''
|
||
Whether this file ${prefix} should be generated. This
|
||
option allows specific ${prefix} files to be disabled.
|
||
'';
|
||
};
|
||
|
||
text = mkOption {
|
||
default = null;
|
||
type = types.nullOr types.lines;
|
||
description = "Text of the file.";
|
||
};
|
||
|
||
source = mkOption {
|
||
type = types.path;
|
||
description = "Path of the source file.";
|
||
};
|
||
};
|
||
config = {
|
||
source = mkIf (config.text != null) (
|
||
let name' = "rspamd-${prefix}-" + baseNameOf name;
|
||
in mkDefault (pkgs.writeText name' config.text));
|
||
};
|
||
};
|
||
|
||
configOverrides =
|
||
(mapAttrs' (n: v: nameValuePair "worker-${if n == "rspamd_proxy" then "proxy" else n}.inc" {
|
||
text = v.extraConfig;
|
||
})
|
||
(filterAttrs (n: v: v.extraConfig != "") cfg.workers))
|
||
// (if cfg.extraConfig == "" then {} else {
|
||
"extra-config.inc".text = cfg.extraConfig;
|
||
});
|
||
in
|
||
|
||
{
|
||
###### interface
|
||
|
||
options = {
|
||
|
||
services.rspamd = {
|
||
|
||
enable = mkEnableOption "rspamd, the Rapid spam filtering system";
|
||
|
||
debug = mkOption {
|
||
type = types.bool;
|
||
default = false;
|
||
description = "Whether to run the rspamd daemon in debug mode.";
|
||
};
|
||
|
||
locals = mkOption {
|
||
type = with types; attrsOf (submodule (configFileModule "locals"));
|
||
default = {};
|
||
description = ''
|
||
Local configuration files, written into <filename>/etc/rspamd/local.d/{name}</filename>.
|
||
'';
|
||
example = literalExpression ''
|
||
{ "redis.conf".source = "/nix/store/.../etc/dir/redis.conf";
|
||
"arc.conf".text = "allow_envfrom_empty = true;";
|
||
}
|
||
'';
|
||
};
|
||
|
||
overrides = mkOption {
|
||
type = with types; attrsOf (submodule (configFileModule "overrides"));
|
||
default = {};
|
||
description = ''
|
||
Overridden configuration files, written into <filename>/etc/rspamd/override.d/{name}</filename>.
|
||
'';
|
||
example = literalExpression ''
|
||
{ "redis.conf".source = "/nix/store/.../etc/dir/redis.conf";
|
||
"arc.conf".text = "allow_envfrom_empty = true;";
|
||
}
|
||
'';
|
||
};
|
||
|
||
localLuaRules = mkOption {
|
||
default = null;
|
||
type = types.nullOr types.path;
|
||
description = ''
|
||
Path of file to link to <filename>/etc/rspamd/rspamd.local.lua</filename> for local
|
||
rules written in Lua
|
||
'';
|
||
};
|
||
|
||
workers = mkOption {
|
||
type = with types; attrsOf (submodule workerOpts);
|
||
description = ''
|
||
Attribute set of workers to start.
|
||
'';
|
||
default = {
|
||
normal = {};
|
||
controller = {};
|
||
};
|
||
example = literalExpression ''
|
||
{
|
||
normal = {
|
||
includes = [ "$CONFDIR/worker-normal.inc" ];
|
||
bindSockets = [{
|
||
socket = "/run/rspamd/rspamd.sock";
|
||
mode = "0660";
|
||
owner = "${cfg.user}";
|
||
group = "${cfg.group}";
|
||
}];
|
||
};
|
||
controller = {
|
||
includes = [ "$CONFDIR/worker-controller.inc" ];
|
||
bindSockets = [ "[::1]:11334" ];
|
||
};
|
||
}
|
||
'';
|
||
};
|
||
|
||
extraConfig = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
description = ''
|
||
Extra configuration to add at the end of the rspamd configuration
|
||
file.
|
||
'';
|
||
};
|
||
|
||
user = mkOption {
|
||
type = types.str;
|
||
default = "rspamd";
|
||
description = ''
|
||
User to use when no root privileges are required.
|
||
'';
|
||
};
|
||
|
||
group = mkOption {
|
||
type = types.str;
|
||
default = "rspamd";
|
||
description = ''
|
||
Group to use when no root privileges are required.
|
||
'';
|
||
};
|
||
|
||
postfix = {
|
||
enable = mkOption {
|
||
type = types.bool;
|
||
default = false;
|
||
description = "Add rspamd milter to postfix main.conf";
|
||
};
|
||
|
||
config = mkOption {
|
||
type = with types; attrsOf (oneOf [ bool str (listOf str) ]);
|
||
description = ''
|
||
Addon to postfix configuration
|
||
'';
|
||
default = {
|
||
smtpd_milters = ["unix:/run/rspamd/rspamd-milter.sock"];
|
||
non_smtpd_milters = ["unix:/run/rspamd/rspamd-milter.sock"];
|
||
};
|
||
};
|
||
};
|
||
};
|
||
};
|
||
|
||
|
||
###### implementation
|
||
|
||
config = mkIf cfg.enable {
|
||
services.rspamd.overrides = configOverrides;
|
||
services.rspamd.workers = mkIf cfg.postfix.enable {
|
||
controller = {};
|
||
rspamd_proxy = {
|
||
bindSockets = [ {
|
||
mode = "0660";
|
||
socket = "/run/rspamd/rspamd-milter.sock";
|
||
owner = cfg.user;
|
||
group = postfixCfg.group;
|
||
} ];
|
||
extraConfig = ''
|
||
upstream "local" {
|
||
default = yes; # Self-scan upstreams are always default
|
||
self_scan = yes; # Enable self-scan
|
||
}
|
||
'';
|
||
};
|
||
};
|
||
services.postfix.config = mkIf cfg.postfix.enable cfg.postfix.config;
|
||
|
||
systemd.services.postfix = mkIf cfg.postfix.enable {
|
||
serviceConfig.SupplementaryGroups = [ postfixCfg.group ];
|
||
};
|
||
|
||
# Allow users to run 'rspamc' and 'rspamadm'.
|
||
environment.systemPackages = [ pkgs.rspamd ];
|
||
|
||
users.users.${cfg.user} = {
|
||
description = "rspamd daemon";
|
||
uid = config.ids.uids.rspamd;
|
||
group = cfg.group;
|
||
};
|
||
|
||
users.groups.${cfg.group} = {
|
||
gid = config.ids.gids.rspamd;
|
||
};
|
||
|
||
environment.etc.rspamd.source = rspamdDir;
|
||
|
||
systemd.services.rspamd = {
|
||
description = "Rspamd Service";
|
||
|
||
wantedBy = [ "multi-user.target" ];
|
||
after = [ "network.target" ];
|
||
restartTriggers = [ rspamdDir ];
|
||
|
||
serviceConfig = {
|
||
ExecStart = "${pkgs.rspamd}/bin/rspamd ${optionalString cfg.debug "-d"} -c /etc/rspamd/rspamd.conf -f";
|
||
Restart = "always";
|
||
|
||
User = "${cfg.user}";
|
||
Group = "${cfg.group}";
|
||
SupplementaryGroups = mkIf cfg.postfix.enable [ postfixCfg.group ];
|
||
|
||
RuntimeDirectory = "rspamd";
|
||
RuntimeDirectoryMode = "0755";
|
||
StateDirectory = "rspamd";
|
||
StateDirectoryMode = "0700";
|
||
|
||
AmbientCapabilities = [];
|
||
CapabilityBoundingSet = "";
|
||
DevicePolicy = "closed";
|
||
LockPersonality = true;
|
||
NoNewPrivileges = true;
|
||
PrivateDevices = true;
|
||
PrivateMounts = true;
|
||
PrivateTmp = true;
|
||
# we need to chown socket to rspamd-milter
|
||
PrivateUsers = !cfg.postfix.enable;
|
||
ProtectClock = true;
|
||
ProtectControlGroups = true;
|
||
ProtectHome = true;
|
||
ProtectHostname = true;
|
||
ProtectKernelLogs = true;
|
||
ProtectKernelModules = true;
|
||
ProtectKernelTunables = true;
|
||
ProtectSystem = "strict";
|
||
RemoveIPC = true;
|
||
RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
|
||
RestrictNamespaces = true;
|
||
RestrictRealtime = true;
|
||
RestrictSUIDSGID = true;
|
||
SystemCallArchitectures = "native";
|
||
SystemCallFilter = "@system-service";
|
||
UMask = "0077";
|
||
};
|
||
};
|
||
};
|
||
imports = [
|
||
(mkRemovedOptionModule [ "services" "rspamd" "socketActivation" ]
|
||
"Socket activation never worked correctly and could at this time not be fixed and so was removed")
|
||
(mkRenamedOptionModule [ "services" "rspamd" "bindSocket" ] [ "services" "rspamd" "workers" "normal" "bindSockets" ])
|
||
(mkRenamedOptionModule [ "services" "rspamd" "bindUISocket" ] [ "services" "rspamd" "workers" "controller" "bindSockets" ])
|
||
(mkRemovedOptionModule [ "services" "rmilter" ] "Use services.rspamd.* instead to set up milter service")
|
||
];
|
||
}
|