Initial implementation of security descriptor creation in DS
[ira/wip.git] / source4 / scripting / python / samba / provision.py
index dafccb3a035c5c3e27781c511f3ee42d351fd908..25cec4b143340ea01281014f69202663df34d7a4 100644 (file)
@@ -42,11 +42,13 @@ import ldb
 import shutil
 from credentials import Credentials, DONT_USE_KERBEROS
 from auth import system_session, admin_session
-from samba import version, Ldb, substitute_var, valid_netbios_name, check_all_substituted, \
-  DS_BEHAVIOR_WIN2008
+from samba import version, Ldb, substitute_var, valid_netbios_name
+from samba import check_all_substituted
+from samba import DS_DOMAIN_FUNCTION_2000, DS_DC_FUNCTION_2008_R2
 from samba.samdb import SamDB
 from samba.idmap import IDmapDB
 from samba.dcerpc import security
+from samba.ndr import ndr_pack
 import urllib
 from ldb import SCOPE_SUBTREE, SCOPE_ONELEVEL, SCOPE_BASE, LdbError, timestring
 from ms_schema import read_ms_schema
@@ -75,6 +77,39 @@ def find_setup_dir():
         return ret
     raise Exception("Unable to find setup directory.")
 
+def get_schema_descriptor(domain_sid):
+    sddl = "O:SAG:SAD:(A;CI;RPLCLORC;;;AU)(A;CI;RPWPCRCCLCLORCWOWDSW;;;SA)" \
+           "(A;CI;RPWPCRCCDCLCLORCWOWDSDDTSW;;;SY)" \
+           "(OA;;CR;1131f6ad-9c07-11d1-f79f-00c04fc2dcd2;;ED)" \
+           "(OA;;CR;89e95b76-444d-4c62-991a-0facbeda640c;;ED)" \
+           "(OA;;CR;1131f6ad-9c07-11d1-f79f-00c04fc2dcd2;;BA)" \
+           "(OA;;CR;89e95b76-444d-4c62-991a-0facbeda640c;;BA)" \
+           "S:(AU;SA;WPCCDCWOWDSDDTSW;;;WD)" \
+           "(AU;CISA;WP;;;WD)(AU;SA;CR;;;BA)" \
+           "(AU;SA;CR;;;DU)(OU;SA;CR;e12b56b6-0a95-11d1-adbb-00c04fd8d5cd;;WD)" \
+           "(OU;SA;CR;45ec5156-db7e-47bb-b53f-dbeb2d03c40f;;WD)"
+    sec = security.descriptor.from_sddl(sddl, domain_sid)
+    return b64encode(ndr_pack(sec))
+
+def get_config_descriptor(domain_sid):
+    sddl = "O:EAG:EAD:(OA;;CR;1131f6aa-9c07-11d1-f79f-00c04fc2dcd2;;ED)" \
+           "(OA;;CR;1131f6ab-9c07-11d1-f79f-00c04fc2dcd2;;ED)" \
+           "(OA;;CR;1131f6ac-9c07-11d1-f79f-00c04fc2dcd2;;ED)" \
+           "(OA;;CR;1131f6aa-9c07-11d1-f79f-00c04fc2dcd2;;BA)" \
+           "(OA;;CR;1131f6ab-9c07-11d1-f79f-00c04fc2dcd2;;BA)" \
+           "(OA;;CR;1131f6ac-9c07-11d1-f79f-00c04fc2dcd2;;BA)" \
+           "(A;;RPLCLORC;;;AU)(A;CI;RPWPCRCCDCLCLORCWOWDSDDTSW;;;EA)" \
+           "(A;;RPWPCRCCDCLCLORCWOWDSDDTSW;;;SY)(A;CIIO;RPWPCRCCLCLORCWOWDSDSW;;;DA)" \
+           "(OA;;CR;1131f6ad-9c07-11d1-f79f-00c04fc2dcd2;;ED)" \
+           "(OA;;CR;89e95b76-444d-4c62-991a-0facbeda640c;;ED)" \
+           "(OA;;CR;1131f6ad-9c07-11d1-f79f-00c04fc2dcd2;;BA)" \
+           "(OA;;CR;89e95b76-444d-4c62-991a-0facbeda640c;;BA)" \
+           "(OA;;CR;1131f6aa-9c07-11d1-f79f-00c04fc2dcd2;;S-1-5-21-3191434175-1265308384-3577286990-498)" \
+           "S:(AU;SA;WPWOWD;;;WD)(AU;SA;CR;;;BA)(AU;SA;CR;;;DU)" \
+           "(OU;SA;CR;45ec5156-db7e-47bb-b53f-dbeb2d03c40f;;WD)"
+    sec = security.descriptor.from_sddl(sddl, domain_sid)
+    return b64encode(ndr_pack(sec))
+
 
 DEFAULTSITE = "Default-First-Site-Name"
 
@@ -141,7 +176,7 @@ class ProvisionResult(object):
         self.samdb = None
         
 class Schema(object):
-    def __init__(self, setup_path, schemadn=None, 
+    def __init__(self, setup_path, domain_sid, schemadn=None,
                  serverdn=None, sambadn=None, ldap_backend_type=None):
         """Load schema for the SamDB from the AD schema files and samba4_schema.ldif
         
@@ -164,8 +199,11 @@ class Schema(object):
                                                   {"SCHEMADN": schemadn,
                                                    "SERVERDN": serverdn,
                                                    })
+
+        descr = get_schema_descriptor(domain_sid)
         self.schema_dn_add = read_and_sub_file(setup_path("provision_schema_basedn.ldif"),
-                                               {"SCHEMADN": schemadn
+                                               {"SCHEMADN": schemadn,
+                                                "DESCRIPTOR": descr
                                                 })
 
         prefixmap = open(setup_path("prefixMap.txt"), 'r').read()
@@ -421,6 +459,15 @@ def guess_names(lp=None, hostname=None, domain=None, dnsdomain=None,
     if not valid_netbios_name(domain):
         raise InvalidNetbiosName(domain)
         
+    if netbiosname.upper() == realm.upper():
+        raise Exception("realm %s must not be equal to netbios domain name %s", realm, netbiosname)
+        
+    if hostname.upper() == realm.upper():
+        raise Exception("realm %s must not be equal to hostname %s", realm, hostname)
+        
+    if domain.upper() == realm.upper():
+        raise Exception("realm %s must not be equal to domain name %s", realm, domain)
+
     if rootdn is None:
        rootdn = domaindn
        
@@ -565,7 +612,8 @@ def setup_samdb_partitions(samdb_path, setup_path, message, lp, session_info,
     #   module when expanding the objectclass list)
     # - partition must be last
     # - each partition has its own module list then
-    modules_list = ["rootdse",
+    modules_list = ["resolve_oids",
+                    "rootdse",
                     "paged_results",
                     "ranged_results",
                     "anr",
@@ -575,16 +623,17 @@ def setup_samdb_partitions(samdb_path, setup_path, message, lp, session_info,
                     "extended_dn_in",
                     "rdn_name",
                     "objectclass",
+                    "descriptor",
                     "samldb",
                     "password_hash",
-                    "operational"]
+                    "operational",
+                    "kludge_acl"]
     tdb_modules_list = [
                     "subtree_rename",
                     "subtree_delete",
                     "linked_attributes",
                     "extended_dn_out_ldb"]
     modules_list2 = ["show_deleted",
-                    "kludge_acl",
                     "partition"]
  
     domaindn_ldb = "users.ldb"
@@ -766,7 +815,7 @@ def setup_samdb_rootdse(samdb, setup_path, names):
 def setup_self_join(samdb, names,
                     machinepass, dnspass, 
                     domainsid, invocationid, setup_path,
-                    policyguid, domainControllerFunctionality):
+                    policyguid, policyguid_dc, domainControllerFunctionality):
     """Join a host to its own domain."""
     assert isinstance(invocationid, str)
     setup_add_ldif(samdb, setup_path("provision_self_join.ldif"), { 
@@ -788,23 +837,34 @@ def setup_self_join(samdb, names,
 
     setup_add_ldif(samdb, setup_path("provision_group_policy.ldif"), { 
               "POLICYGUID": policyguid,
+              "POLICYGUID_DC": policyguid_dc,
               "DNSDOMAIN": names.dnsdomain,
               "DOMAINSID": str(domainsid),
               "DOMAINDN": names.domaindn})
+    
+    # add the NTDSGUID based SPNs
+    ntds_dn = "CN=NTDS Settings,CN=%s,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,%s" % (names.hostname, names.domaindn)
+    names.ntdsguid = samdb.searchone(basedn=ntds_dn, attribute="objectGUID",
+                                     expression="", scope=SCOPE_BASE)
+    assert isinstance(names.ntdsguid, str)
 
     # Setup fSMORoleOwner entries to point at the newly created DC entry
     setup_modify_ldif(samdb, setup_path("provision_self_join_modify.ldif"), {
+              "DOMAIN": names.domain,
+              "DNSDOMAIN": names.dnsdomain,
               "DOMAINDN": names.domaindn,
               "CONFIGDN": names.configdn,
               "SCHEMADN": names.schemadn, 
               "DEFAULTSITE": names.sitename,
-              "SERVERDN": names.serverdn
+              "SERVERDN": names.serverdn,
+              "NETBIOSNAME": names.netbiosname,
+              "NTDSGUID": names.ntdsguid
               })
 
 
 def setup_samdb(path, setup_path, session_info, credentials, lp, 
                 names, message, 
-                domainsid, domainguid, policyguid, 
+                domainsid, domainguid, policyguid, policyguid_dc,
                 fill, adminpass, krbtgtpass, 
                 machinepass, invocationid, dnspass,
                 serverrole, schema=None, ldap_backend=None):
@@ -813,9 +873,9 @@ def setup_samdb(path, setup_path, session_info, credentials, lp,
     :note: This will wipe the main SAM database file!
     """
 
-    domainFunctionality = DS_BEHAVIOR_WIN2008
-    forestFunctionality = DS_BEHAVIOR_WIN2008
-    domainControllerFunctionality = DS_BEHAVIOR_WIN2008
+    domainFunctionality = DS_DOMAIN_FUNCTION_2000
+    forestFunctionality = DS_DOMAIN_FUNCTION_2000
+    domainControllerFunctionality = DS_DC_FUNCTION_2008_R2
 
     # Also wipes the database
     setup_samdb_partitions(path, setup_path, message=message, lp=lp,
@@ -824,7 +884,7 @@ def setup_samdb(path, setup_path, session_info, credentials, lp,
                            ldap_backend=ldap_backend, serverrole=serverrole)
 
     if (schema == None):
-        schema = Schema(setup_path, schemadn=names.schemadn, serverdn=names.serverdn,
+        schema = Schema(setup_path, domainsid, schemadn=names.schemadn, serverdn=names.serverdn,
             sambadn=names.sambadn, ldap_backend_type=ldap_backend.ldap_backend_type)
 
     # Load the database, but importantly, use Ldb not SamDB as we don't want to load the global schema
@@ -890,7 +950,7 @@ def setup_samdb(path, setup_path, session_info, credentials, lp,
             domainguid_mod = ""
 
         setup_modify_ldif(samdb, setup_path("provision_basedn_modify.ldif"), {
-            "LDAPTIME": timestring(int(time.time())),
+            "CREATTIME": str(int(time.time()) * 1e7), # seconds -> ticks
             "DOMAINSID": str(domainsid),
             "SCHEMADN": names.schemadn, 
             "NETBIOSNAME": names.netbiosname,
@@ -900,12 +960,15 @@ def setup_samdb(path, setup_path, session_info, credentials, lp,
             "POLICYGUID": policyguid,
             "DOMAINDN": names.domaindn,
             "DOMAINGUID_MOD": domainguid_mod,
-            "DOMAIN_FUNCTIONALITY": str(domainFunctionality)
+            "DOMAIN_FUNCTIONALITY": str(domainFunctionality),
+            "SAMBA_VERSION_STRING": version
             })
 
         message("Adding configuration container")
+        descr = get_config_descriptor(domainsid);
         setup_add_ldif(samdb, setup_path("provision_configuration_basedn.ldif"), {
             "CONFIGDN": names.configdn, 
+            "DESCRIPTOR": descr,
             })
         message("Modifying configuration container")
         setup_modify_ldif(samdb, setup_path("provision_configuration_basedn_modify.ldif"), {
@@ -955,11 +1018,13 @@ def setup_samdb(path, setup_path, session_info, credentials, lp,
                 "DOMAINDN": names.domaindn})
         message("Setting up sam.ldb data")
         setup_add_ldif(samdb, setup_path("provision.ldif"), {
+            "CREATTIME": str(int(time.time()) * 1e7), # seconds -> ticks
             "DOMAINDN": names.domaindn,
             "NETBIOSNAME": names.netbiosname,
             "DEFAULTSITE": names.sitename,
             "CONFIGDN": names.configdn,
-            "SERVERDN": names.serverdn
+            "SERVERDN": names.serverdn,
+            "POLICYGUID_DC": policyguid_dc
             })
 
         if fill == FILL_FULL:
@@ -978,9 +1043,15 @@ def setup_samdb(path, setup_path, session_info, credentials, lp,
                                 dnspass=dnspass,  
                                 machinepass=machinepass, 
                                 domainsid=domainsid, policyguid=policyguid,
+                                policyguid_dc=policyguid_dc,
                                 setup_path=setup_path,
                                 domainControllerFunctionality=domainControllerFunctionality)
 
+                ntds_dn = "CN=NTDS Settings,CN=%s,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,%s" % (names.hostname, names.domaindn)
+                names.ntdsguid = samdb.searchone(basedn=ntds_dn,
+                  attribute="objectGUID", expression="", scope=SCOPE_BASE)
+                assert isinstance(names.ntdsguid, str)
+
     except:
         samdb.transaction_cancel()
         raise
@@ -1002,7 +1073,8 @@ def provision(setup_dir, message, session_info,
               domain=None, hostname=None, hostip=None, hostip6=None, 
               domainsid=None, adminpass=None, ldapadminpass=None, 
               krbtgtpass=None, domainguid=None, 
-              policyguid=None, invocationid=None, machinepass=None, 
+              policyguid=None, policyguid_dc=None, invocationid=None,
+              machinepass=None, 
               dnspass=None, root=None, nobody=None, users=None, 
               wheel=None, backup=None, aci=None, serverrole=None, 
               ldap_backend_extra_port=None, ldap_backend_type=None,
@@ -1016,13 +1088,22 @@ def provision(setup_dir, message, session_info,
     """
 
     def setup_path(file):
-        return os.path.join(setup_dir, file)
+      return os.path.join(setup_dir, file)
 
     if domainsid is None:
-        domainsid = security.random_sid()
+      domainsid = security.random_sid()
+    else:
+      domainsid = security.dom_sid(domainsid)
+
 
+    # create/adapt the group policy GUIDs
     if policyguid is None:
         policyguid = str(uuid.uuid4())
+    policyguid = policyguid.upper()
+    if policyguid_dc is None:
+        policyguid_dc = str(uuid.uuid4())
+    policyguid_dc = policyguid_dc.upper()
+
     if adminpass is None:
         adminpass = glue.generate_random_str(12)
     if krbtgtpass is None:
@@ -1090,7 +1171,7 @@ def provision(setup_dir, message, session_info,
 
     ldapi_url = "ldapi://%s" % urllib.quote(paths.s4_ldapi_path, safe="")
     
-    schema = Schema(setup_path, schemadn=names.schemadn, serverdn=names.serverdn,
+    schema = Schema(setup_path, domainsid, schemadn=names.schemadn, serverdn=names.serverdn,
         sambadn=names.sambadn, ldap_backend_type=ldap_backend_type)
     
     secrets_credentials = credentials
@@ -1114,6 +1195,7 @@ def provision(setup_dir, message, session_info,
         # Now use the backend credentials to access the databases
         credentials = provision_backend.credentials
         secrets_credentials = provision_backend.adminCredentials
+        ldapi_url = provision_backend.ldapi_uri
 
     # only install a new shares config db if there is none
     if not os.path.exists(paths.shareconf):
@@ -1141,7 +1223,8 @@ def provision(setup_dir, message, session_info,
                         credentials=credentials, lp=lp, names=names,
                         message=message, 
                         domainsid=domainsid, 
-                        schema=schema, domainguid=domainguid, policyguid=policyguid, 
+                        schema=schema, domainguid=domainguid,
+                        policyguid=policyguid, policyguid_dc=policyguid_dc,
                         fill=samdb_fill, 
                         adminpass=adminpass, krbtgtpass=krbtgtpass,
                         invocationid=invocationid, 
@@ -1161,12 +1244,24 @@ def provision(setup_dir, message, session_info,
                     (paths.smbconf, setup_path("provision.smb.conf.dc")))
             assert(paths.sysvol is not None)            
             
-        policy_path = os.path.join(paths.sysvol, names.dnsdomain, "Policies", 
+        # Set up group policies (domain policy and domain controller policy)
+
+        policy_path = os.path.join(paths.sysvol, names.dnsdomain, "Policies",
                                    "{" + policyguid + "}")
         os.makedirs(policy_path, 0755)
-        open(os.path.join(policy_path, "GPT.INI"), 'w').write("")
-        os.makedirs(os.path.join(policy_path, "Machine"), 0755)
-        os.makedirs(os.path.join(policy_path, "User"), 0755)
+        open(os.path.join(policy_path, "GPT.INI"), 'w').write(
+                                   "[General]\r\nVersion=65543")
+        os.makedirs(os.path.join(policy_path, "MACHINE"), 0755)
+        os.makedirs(os.path.join(policy_path, "USER"), 0755)
+
+        policy_path_dc = os.path.join(paths.sysvol, names.dnsdomain, "Policies",
+                                   "{" + policyguid_dc + "}")
+        os.makedirs(policy_path_dc, 0755)
+        open(os.path.join(policy_path_dc, "GPT.INI"), 'w').write(
+                                   "[General]\r\nVersion=2")
+        os.makedirs(os.path.join(policy_path_dc, "MACHINE"), 0755)
+        os.makedirs(os.path.join(policy_path_dc, "USER"), 0755)
+
         if not os.path.isdir(paths.netlogon):
             os.makedirs(paths.netlogon, 0755)
 
@@ -1193,16 +1288,12 @@ def provision(setup_dir, message, session_info,
 
             domainguid = samdb.searchone(basedn=domaindn, attribute="objectGUID")
             assert isinstance(domainguid, str)
-            hostguid = samdb.searchone(basedn=domaindn, attribute="objectGUID",
-                                       expression="(&(objectClass=computer)(cn=%s))" % names.hostname,
-                                       scope=SCOPE_SUBTREE)
-            assert isinstance(hostguid, str)
 
             create_zone_file(paths.dns, setup_path, dnsdomain=names.dnsdomain,
                              domaindn=names.domaindn, hostip=hostip,
                              hostip6=hostip6, hostname=names.hostname,
                              dnspass=dnspass, realm=names.realm,
-                             domainguid=domainguid, hostguid=hostguid)
+                             domainguid=domainguid, ntdsguid=names.ntdsguid)
 
             create_named_conf(paths.namedconf, setup_path, realm=names.realm,
                               dnsdomain=names.dnsdomain, private_dir=paths.private_dir)
@@ -1219,44 +1310,44 @@ def provision(setup_dir, message, session_info,
             message("A Kerberos configuration suitable for Samba 4 has been generated at %s" % paths.krb5conf)
 
 
-    ldapi_db = Ldb(provision_backend.ldapi_uri, lp=lp, credentials=credentials)
+    if provision_backend is not None: 
+      if ldap_backend_type == "fedora-ds":
+        ldapi_db = Ldb(provision_backend.ldapi_uri, lp=lp, credentials=credentials)
 
-    # delete default SASL mappings
-    res = ldapi_db.search(expression="(!(cn=samba-admin mapping))", base="cn=mapping,cn=sasl,cn=config", scope=SCOPE_ONELEVEL, attrs=["dn"])
+        # delete default SASL mappings
+        res = ldapi_db.search(expression="(!(cn=samba-admin mapping))", base="cn=mapping,cn=sasl,cn=config", scope=SCOPE_ONELEVEL, attrs=["dn"])
 
-    for i in range (0, len(res)):
-        dn = str(res[i]["dn"])
-        ldapi_db.delete(dn)
-
-    # configure aci
-    if ldap_backend_type == "fedora-ds":
-
-        aci = """(targetattr = "*") (version 3.0;acl "full access to all by samba-admin";allow (all)(userdn = "ldap:///CN=samba-admin,%s");)""" % names.sambadn
+        # configure in-directory access control on Fedora DS via the aci attribute (over a direct ldapi:// socket)
+        for i in range (0, len(res)):
+          dn = str(res[i]["dn"])
+          ldapi_db.delete(dn)
 
-        m = ldb.Message()
-        m["aci"] = ldb.MessageElement([aci], ldb.FLAG_MOD_REPLACE, "aci")
+          aci = """(targetattr = "*") (version 3.0;acl "full access to all by samba-admin";allow (all)(userdn = "ldap:///CN=samba-admin,%s");)""" % names.sambadn
 
-        m.dn = ldb.Dn(1, names.domaindn)
-        ldapi_db.modify(m)
+          m = ldb.Message()
+          m["aci"] = ldb.MessageElement([aci], ldb.FLAG_MOD_REPLACE, "aci")
+        
+          m.dn = ldb.Dn(1, names.domaindn)
+          ldapi_db.modify(m)
 
-        m.dn = ldb.Dn(1, names.configdn)
-        ldapi_db.modify(m)
+          m.dn = ldb.Dn(1, names.configdn)
+          ldapi_db.modify(m)
 
-        m.dn = ldb.Dn(1, names.schemadn)
-        ldapi_db.modify(m)
+          m.dn = ldb.Dn(1, names.schemadn)
+          ldapi_db.modify(m)
 
-    # if backend is openldap, terminate slapd after final provision and check its proper termination
-    if provision_backend is not None and provision_backend.slapd is not None:
-        if provision_backend.slapd.poll() is None:
-            #Kill the slapd
-            if hasattr(provision_backend.slapd, "terminate"):
-                provision_backend.slapd.terminate()
-            else:
-                import signal
-                os.kill(provision_backend.slapd.pid, signal.SIGTERM)
+      # if an LDAP backend is in use, terminate slapd after final provision and check its proper termination
+      if provision_backend.slapd.poll() is None:
+        #Kill the slapd
+        if hasattr(provision_backend.slapd, "terminate"):
+          provision_backend.slapd.terminate()
+        else:
+          # Older python versions don't have .terminate()
+          import signal
+          os.kill(provision_backend.slapd.pid, signal.SIGTERM)
             
-            #and now wait for it to die
-            provision_backend.slapd.communicate()
+        #and now wait for it to die
+        provision_backend.slapd.communicate()
             
     # now display slapd_command_file.txt to show how slapd must be started next time
         message("Use later the following commandline to start slapd, then Samba:")
@@ -1304,7 +1395,8 @@ def provision_become_dc(setup_dir=None,
                         configdn=None, serverdn=None,
                         domain=None, hostname=None, domainsid=None, 
                         adminpass=None, krbtgtpass=None, domainguid=None, 
-                        policyguid=None, invocationid=None, machinepass=None, 
+                        policyguid=None, policyguid_dc=None, invocationid=None,
+                        machinepass=None, 
                         dnspass=None, root=None, nobody=None, users=None, 
                         wheel=None, backup=None, serverrole=None, 
                         ldap_backend=None, ldap_backend_type=None,
@@ -1803,7 +1895,7 @@ def create_phpldapadmin_config(path, setup_path, ldapi_uri):
 
 def create_zone_file(path, setup_path, dnsdomain, domaindn, 
                      hostip, hostip6, hostname, dnspass, realm, domainguid,
-                     hostguid):
+                     ntdsguid):
     """Write out a DNS zone file, from the info in the current database.
 
     :param path: Path of the new zone file.
@@ -1816,7 +1908,7 @@ def create_zone_file(path, setup_path, dnsdomain, domaindn,
     :param dnspass: Password for DNS
     :param realm: Realm name
     :param domainguid: GUID of the domain.
-    :param hostguid: GUID of the host.
+    :param ntdsguid: GUID of the hosts nTDSDSA record.
     """
     assert isinstance(domainguid, str)
 
@@ -1844,7 +1936,7 @@ def create_zone_file(path, setup_path, dnsdomain, domaindn,
             "DOMAINGUID": domainguid,
             "DATESTRING": time.strftime("%Y%m%d%H"),
             "DEFAULTSITE": DEFAULTSITE,
-            "HOSTGUID": hostguid,
+            "NTDSGUID": ntdsguid,
             "HOSTIP6_BASE_LINE": hostip6_base_line,
             "HOSTIP6_HOST_LINE": hostip6_host_line,
         })