122 lines
3.7 KiB
Nix
122 lines
3.7 KiB
Nix
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{ config, pkgs, lib, ... }:
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{
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services.openldap = let
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dn = "dc=kerberos,dc=pvv,dc=ntnu,dc=no";
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cfg = config.services.openldap;
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heimdal = config.security.krb5.package;
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in {
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enable = true;
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# NOTE: this is a custom build of openldap with support for
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# perl and kerberos.
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package = pkgs.openldap.overrideAttrs (prev: {
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# https://github.com/openldap/openldap/blob/master/configure
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configureFlags = prev.configureFlags ++ [
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# Connect to slapd via UNIX socket
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"--enable-local"
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# Cyrus SASL
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"--enable-spasswd"
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# Reverse hostname lookups
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"--enable-rlookups"
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# perl
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"--enable-perl"
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];
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buildInputs = prev.buildInputs ++ [
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pkgs.perl
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# NOTE: do not upstream this, it might not work with
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# MIT in the same way
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heimdal
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];
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extraContribModules = prev.extraContribModules ++ [
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# https://git.openldap.org/openldap/openldap/-/tree/master/contrib/slapd-modules
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"smbk5pwd"
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];
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});
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settings = {
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attrs = {
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olcLogLevel = [ "stats" "config" "args" ];
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# olcAuthzRegexp = ''
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# gidNumber=.*\\\+uidNumber=0,cn=peercred,cn=external,cn=auth
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# "uid=heimdal,${dn2}"
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# '';
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# olcSaslSecProps = "minssf=0";
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};
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children = {
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"cn=schema".includes = let
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# NOTE: needed for smbk5pwd.so module
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schemaToLdif = name: path: pkgs.runCommandNoCC name {
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buildInputs = with pkgs; [ schema2ldif ];
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} ''
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schema2ldif "${path}" > $out
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'';
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hdb-ldif = schemaToLdif "hdb.ldif" "${heimdal.src}/lib/hdb/hdb.schema";
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samba-ldif = schemaToLdif "samba.ldif" "${heimdal.src}/tests/ldap/samba.schema";
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in [
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"${cfg.package}/etc/schema/core.ldif"
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"${cfg.package}/etc/schema/cosine.ldif"
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"${cfg.package}/etc/schema/nis.ldif"
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"${cfg.package}/etc/schema/inetorgperson.ldif"
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"${hdb-ldif}"
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"${samba-ldif}"
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];
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# NOTE: installation of smbk5pwd.so module
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# https://git.openldap.org/openldap/openldap/-/tree/master/contrib/slapd-modules/smbk5pwd
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"cn=module{0}".attrs = {
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objectClass = [ "olcModuleList" ];
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olcModuleLoad = [ "${cfg.package}/lib/modules/smbk5pwd.so" ];
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};
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# NOTE: activation of smbk5pwd.so module for {1}mdb
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"olcOverlay={0}smbk5pwd,olcDatabase={1}mdb".attrs = {
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objectClass = [ "olcOverlayConfig" "olcSmbK5PwdConfig" ];
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olcOverlay = "{0}smbk5pwd";
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olcSmbK5PwdEnable = [ "krb5" "samba" ];
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olcSmbK5PwdMustChange = toString (60 * 60 * 24 * 30);
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};
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"olcDatabase={1}mdb".attrs = {
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objectClass = [ "olcDatabaseConfig" "olcMdbConfig" ];
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olcDatabase = "{1}mdb";
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olcSuffix = dn;
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# TODO: PW is supposed to be a secret, but it's probably fine for testing
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olcRootDN = "cn=admin,${dn}";
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# TODO: replace with proper secret
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olcRootPW.path = pkgs.writeText "olcRootPW" "pass";
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olcDbDirectory = "/var/lib/openldap/test-smbk5pwd-db";
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olcDbIndex = "objectClass eq";
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olcAccess = [
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''{0}to attrs=userPassword,shadowLastChange
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by dn.exact=cn=admin,${dn} write
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by self write
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by anonymous auth
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by * none''
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''{1}to dn.base=""
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by * read''
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/* allow read on anything else */
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# ''{2}to *
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# by cn=admin,${dn} write by dn.exact=gidNumber=0+uidNumber=0+cn=peercred,cn=external write
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# by * read''
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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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