mirror of
https://github.com/ilyakooo0/nixpkgs.git
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326 lines
12 KiB
Nix
326 lines
12 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.openldap;
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legacyOptions = [ "rootpwFile" "suffix" "dataDir" "rootdn" "rootpw" ];
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openldap = cfg.package;
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configDir = if cfg.configDir != null then cfg.configDir else "/etc/openldap/slapd.d";
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ldapValueType = let
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# Can't do types.either with multiple non-overlapping submodules, so define our own
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singleLdapValueType = lib.mkOptionType rec {
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name = "LDAP";
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description = "LDAP value";
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check = x: lib.isString x || (lib.isAttrs x && (x ? path || x ? base64));
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merge = lib.mergeEqualOption;
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};
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# We don't coerce to lists of single values, as some values must be unique
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in types.either singleLdapValueType (types.listOf singleLdapValueType);
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ldapAttrsType =
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let
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options = {
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attrs = mkOption {
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type = types.attrsOf ldapValueType;
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default = {};
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description = "Attributes of the parent entry.";
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};
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children = mkOption {
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# Hide the child attributes, to avoid infinite recursion in e.g. documentation
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# Actual Nix evaluation is lazy, so this is not an issue there
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type = let
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hiddenOptions = lib.mapAttrs (name: attr: attr // { visible = false; }) options;
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in types.attrsOf (types.submodule { options = hiddenOptions; });
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default = {};
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description = "Child entries of the current entry, with recursively the same structure.";
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example = lib.literalExpression ''
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{
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"cn=schema" = {
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# The attribute used in the DN must be defined
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attrs = { cn = "schema"; };
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children = {
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# This entry's DN is expanded to "cn=foo,cn=schema"
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"cn=foo" = { ... };
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};
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# These includes are inserted after "cn=schema", but before "cn=foo,cn=schema"
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includes = [ ... ];
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};
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}
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'';
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};
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includes = mkOption {
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type = types.listOf types.path;
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default = [];
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description = ''
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LDIF files to include after the parent's attributes but before its children.
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'';
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};
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};
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in types.submodule { inherit options; };
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valueToLdif = attr: values: let
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listValues = if lib.isList values then values else lib.singleton values;
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in map (value:
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if lib.isAttrs value then
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if lib.hasAttr "path" value
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then "${attr}:< file://${value.path}"
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else "${attr}:: ${value.base64}"
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else "${attr}: ${lib.replaceStrings [ "\n" ] [ "\n " ] value}"
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) listValues;
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attrsToLdif = dn: { attrs, children, includes, ... }: [''
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dn: ${dn}
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${lib.concatStringsSep "\n" (lib.flatten (lib.mapAttrsToList valueToLdif attrs))}
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''] ++ (map (path: "include: file://${path}\n") includes) ++ (
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lib.flatten (lib.mapAttrsToList (name: value: attrsToLdif "${name},${dn}" value) children)
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);
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in {
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imports = let
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deprecationNote = "This option is removed due to the deprecation of `slapd.conf` upstream. Please migrate to `services.openldap.settings`, see the release notes for advice with this process.";
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mkDatabaseOption = old: new:
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lib.mkChangedOptionModule [ "services" "openldap" old ] [ "services" "openldap" "settings" "children" ]
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(config: let
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database = lib.getAttrFromPath [ "services" "openldap" "database" ] config;
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value = lib.getAttrFromPath [ "services" "openldap" old ] config;
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in lib.setAttrByPath ([ "olcDatabase={1}${database}" "attrs" ] ++ new) value);
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in [
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(lib.mkRemovedOptionModule [ "services" "openldap" "extraConfig" ] deprecationNote)
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(lib.mkRemovedOptionModule [ "services" "openldap" "extraDatabaseConfig" ] deprecationNote)
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(lib.mkChangedOptionModule [ "services" "openldap" "logLevel" ] [ "services" "openldap" "settings" "attrs" "olcLogLevel" ]
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(config: lib.splitString " " (lib.getAttrFromPath [ "services" "openldap" "logLevel" ] config)))
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(lib.mkChangedOptionModule [ "services" "openldap" "defaultSchemas" ] [ "services" "openldap" "settings" "children" "cn=schema" "includes"]
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(config: lib.optionals (lib.getAttrFromPath [ "services" "openldap" "defaultSchemas" ] config) (
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map (schema: "${openldap}/etc/schema/${schema}.ldif") [ "core" "cosine" "inetorgperson" "nis" ])))
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(lib.mkChangedOptionModule [ "services" "openldap" "database" ] [ "services" "openldap" "settings" "children" ]
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(config: let
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database = lib.getAttrFromPath [ "services" "openldap" "database" ] config;
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in {
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"olcDatabase={1}${database}".attrs = {
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# objectClass is case-insensitive, so don't need to capitalize ${database}
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objectClass = [ "olcdatabaseconfig" "olc${database}config" ];
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olcDatabase = "{1}${database}";
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olcDbDirectory = lib.mkDefault "/var/db/openldap";
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};
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"cn=schema".includes = lib.mkDefault (
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map (schema: "${openldap}/etc/schema/${schema}.ldif") [ "core" "cosine" "inetorgperson" "nis" ]
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);
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}))
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(mkDatabaseOption "rootpwFile" [ "olcRootPW" "path" ])
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(mkDatabaseOption "suffix" [ "olcSuffix" ])
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(mkDatabaseOption "dataDir" [ "olcDbDirectory" ])
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(mkDatabaseOption "rootdn" [ "olcRootDN" ])
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(mkDatabaseOption "rootpw" [ "olcRootPW" ])
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];
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options = {
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services.openldap = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "
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Whether to enable the ldap server.
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";
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};
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package = mkOption {
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type = types.package;
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default = pkgs.openldap;
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defaultText = literalExpression "pkgs.openldap";
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description = ''
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OpenLDAP package to use.
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This can be used to, for example, set an OpenLDAP package
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with custom overrides to enable modules or other
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functionality.
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'';
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};
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user = mkOption {
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type = types.str;
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default = "openldap";
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description = "User account under which slapd runs.";
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};
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group = mkOption {
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type = types.str;
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default = "openldap";
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description = "Group account under which slapd runs.";
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};
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urlList = mkOption {
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type = types.listOf types.str;
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default = [ "ldap:///" ];
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description = "URL list slapd should listen on.";
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example = [ "ldaps:///" ];
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};
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settings = mkOption {
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type = ldapAttrsType;
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description = "Configuration for OpenLDAP, in OLC format";
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example = lib.literalExpression ''
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{
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attrs.olcLogLevel = [ "stats" ];
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children = {
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"cn=schema".includes = [
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"''${pkgs.openldap}/etc/schema/core.ldif"
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"''${pkgs.openldap}/etc/schema/cosine.ldif"
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"''${pkgs.openldap}/etc/schema/inetorgperson.ldif"
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];
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"olcDatabase={-1}frontend" = {
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attrs = {
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objectClass = "olcDatabaseConfig";
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olcDatabase = "{-1}frontend";
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olcAccess = [ "{0}to * by dn.exact=uidNumber=0+gidNumber=0,cn=peercred,cn=external,cn=auth manage stop by * none stop" ];
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};
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};
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"olcDatabase={0}config" = {
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attrs = {
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objectClass = "olcDatabaseConfig";
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olcDatabase = "{0}config";
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olcAccess = [ "{0}to * by * none break" ];
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};
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};
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"olcDatabase={1}mdb" = {
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attrs = {
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objectClass = [ "olcDatabaseConfig" "olcMdbConfig" ];
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olcDatabase = "{1}mdb";
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olcDbDirectory = "/var/db/ldap";
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olcDbIndex = [
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"objectClass eq"
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"cn pres,eq"
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"uid pres,eq"
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"sn pres,eq,subany"
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];
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olcSuffix = "dc=example,dc=com";
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olcAccess = [ "{0}to * by * read break" ];
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};
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};
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};
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};
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'';
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};
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# This option overrides settings
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configDir = mkOption {
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type = types.nullOr types.path;
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default = null;
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description = ''
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Use this config directory instead of generating one from the
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<literal>settings</literal> option. Overrides all NixOS settings. If
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you use this option,ensure `olcPidFile` is set to `/run/slapd/slapd.conf`.
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'';
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example = "/var/db/slapd.d";
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};
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declarativeContents = mkOption {
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type = with types; attrsOf lines;
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default = {};
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description = ''
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Declarative contents for the LDAP database, in LDIF format by suffix.
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All data will be erased when starting the LDAP server. Modifications
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to the database are not prevented, they are just dropped on the next
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reboot of the server. Performance-wise the database and indexes are
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rebuilt on each server startup, so this will slow down server startup,
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especially with large databases.
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'';
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example = lib.literalExpression ''
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{
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"dc=example,dc=org" = '''
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dn= dn: dc=example,dc=org
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objectClass: domain
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dc: example
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dn: ou=users,dc=example,dc=org
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objectClass = organizationalUnit
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ou: users
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# ...
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''';
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}
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'';
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};
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};
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};
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meta.maintainers = with lib.maintainers; [ mic92 kwohlfahrt ];
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config = mkIf cfg.enable {
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assertions = map (opt: {
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assertion = ((getAttr opt cfg) != "_mkMergedOptionModule") -> (cfg.database != "_mkMergedOptionModule");
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message = "Legacy OpenLDAP option `services.openldap.${opt}` requires `services.openldap.database` (use value \"mdb\" if unsure)";
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}) legacyOptions;
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environment.systemPackages = [ openldap ];
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# Literal attributes must always be set
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services.openldap.settings = {
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attrs = {
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objectClass = "olcGlobal";
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cn = "config";
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olcPidFile = "/run/slapd/slapd.pid";
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};
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children."cn=schema".attrs = {
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cn = "schema";
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objectClass = "olcSchemaConfig";
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};
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};
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systemd.services.openldap = {
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description = "LDAP server";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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preStart = let
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settingsFile = pkgs.writeText "config.ldif" (lib.concatStringsSep "\n" (attrsToLdif "cn=config" cfg.settings));
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dbSettings = lib.filterAttrs (name: value: lib.hasPrefix "olcDatabase=" name) cfg.settings.children;
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dataDirs = lib.mapAttrs' (name: value: lib.nameValuePair value.attrs.olcSuffix value.attrs.olcDbDirectory)
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(lib.filterAttrs (_: value: value.attrs ? olcDbDirectory) dbSettings);
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dataFiles = lib.mapAttrs (dn: contents: pkgs.writeText "${dn}.ldif" contents) cfg.declarativeContents;
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mkLoadScript = dn: let
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dataDir = lib.escapeShellArg (getAttr dn dataDirs);
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in ''
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rm -rf ${dataDir}/*
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${openldap}/bin/slapadd -F ${lib.escapeShellArg configDir} -b ${dn} -l ${getAttr dn dataFiles}
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chown -R "${cfg.user}:${cfg.group}" ${dataDir}
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'';
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in ''
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mkdir -p /run/slapd
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chown -R "${cfg.user}:${cfg.group}" /run/slapd
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mkdir -p ${lib.escapeShellArg configDir} ${lib.escapeShellArgs (lib.attrValues dataDirs)}
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chown "${cfg.user}:${cfg.group}" ${lib.escapeShellArg configDir} ${lib.escapeShellArgs (lib.attrValues dataDirs)}
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${lib.optionalString (cfg.configDir == null) (''
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rm -Rf ${configDir}/*
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${openldap}/bin/slapadd -F ${configDir} -bcn=config -l ${settingsFile}
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'')}
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chown -R "${cfg.user}:${cfg.group}" ${lib.escapeShellArg configDir}
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${lib.concatStrings (map mkLoadScript (lib.attrNames cfg.declarativeContents))}
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${openldap}/bin/slaptest -u -F ${lib.escapeShellArg configDir}
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'';
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serviceConfig = {
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ExecStart = lib.escapeShellArgs ([
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"${openldap}/libexec/slapd" "-u" cfg.user "-g" cfg.group "-F" configDir
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"-h" (lib.concatStringsSep " " cfg.urlList)
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]);
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Type = "forking";
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PIDFile = cfg.settings.attrs.olcPidFile;
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};
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};
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users.users = lib.optionalAttrs (cfg.user == "openldap") {
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openldap = {
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group = cfg.group;
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isSystemUser = true;
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};
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};
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users.groups = lib.optionalAttrs (cfg.group == "openldap") {
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openldap = {};
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};
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};
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}
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