#!/usr/bin/env python
# vim: expandtab
#
-# Copyright (C) Matthieu Patou <mat@matws.net> 2009
+# Copyright (C) Matthieu Patou <mat@matws.net> 2009 - 2010
#
# Based on provision a Samba4 server by
# Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008
import sys
import tempfile
import re
+import traceback
# Allow to run from s4 source directory (without installing samba)
sys.path.insert(0, "bin/python")
+import ldb
import samba
import samba.getopt as options
+
+from base64 import b64encode
from samba.credentials import DONT_USE_KERBEROS
from samba.auth import system_session, admin_session
-from samba import Ldb, version
-from ldb import SCOPE_ONELEVEL, SCOPE_SUBTREE, SCOPE_BASE,\
- FLAG_MOD_REPLACE, FLAG_MOD_ADD, FLAG_MOD_DELETE,\
- MessageElement, Message, Dn
-from samba import param
-from samba.misc import messageEltFlagToString
+from ldb import (SCOPE_SUBTREE, SCOPE_BASE,
+ FLAG_MOD_REPLACE, FLAG_MOD_ADD, FLAG_MOD_DELETE,
+ MessageElement, Message, Dn)
+from samba import param, dsdb, Ldb
from samba.provision import (find_setup_dir, get_domain_descriptor,
- get_config_descriptor, secretsdb_self_join, set_gpo_acl,
- getpolicypath, create_gpo_struct, ProvisioningError)
+ get_config_descriptor,
+ ProvisioningError, get_last_provision_usn,
+ get_max_usn, update_provision_usn)
from samba.schema import get_linked_attributes, Schema, get_schema_descriptor
-from samba.dcerpc import security
+from samba.dcerpc import security, drsblobs, xattr
from samba.ndr import ndr_unpack
-from samba.dcerpc.misc import SEC_CHAN_BDC
-from samba.upgradehelpers import dn_sort, get_paths, newprovision,\
- find_provision_key_parameters, get_ldbs
+from samba.upgradehelpers import (dn_sort, get_paths, newprovision,
+ find_provision_key_parameters, get_ldbs,
+ usn_in_range, identic_rename, get_diff_sddls,
+ update_secrets, CHANGE, ERROR, SIMPLE,
+ CHANGEALL, GUESS, CHANGESD, PROVISION,
+ updateOEMInfo, getOEMInfo, update_gpo,
+ delta_update_basesamdb, update_policyids,
+ update_machine_account_password,
+ search_constructed_attrs_stored,
+ int64range2str,
+ increment_calculated_keyversion_number)
replace=2**FLAG_MOD_REPLACE
add=2**FLAG_MOD_ADD
delete=2**FLAG_MOD_DELETE
never=0
-LAST_PROVISION_USN_ATTRIBUTE = "lastProvisionUSN"
+
+# Will be modified during provision to tell if default sd has been modified
+# somehow ...
#Errors are always logged
-ERROR = -1
-SIMPLE = 0x00
-CHANGE = 0x01
-CHANGESD = 0x02
-GUESS = 0x04
-PROVISION = 0x08
-CHANGEALL = 0xff
__docformat__ = "restructuredText"
# This is most probably because they are populated automatcally when object is
# created
# This also apply to imported object from reference provision
-hashAttrNotCopied = { "dn": 1, "whenCreated": 1, "whenChanged": 1, "objectGUID": 1, "replPropertyMetaData": 1, "uSNChanged": 1,
- "uSNCreated": 1, "parentGUID": 1, "objectCategory": 1, "distinguishedName": 1,
- "showInAdvancedViewOnly": 1, "instanceType": 1, "cn": 1, "msDS-Behavior-Version":1, "nextRid":1,
- "nTMixedDomain": 1, "versionNumber":1, "lmPwdHistory":1, "pwdLastSet": 1, "ntPwdHistory":1, "unicodePwd":1,
- "dBCSPwd":1, "supplementalCredentials":1, "gPCUserExtensionNames":1, "gPCMachineExtensionNames":1,
- "maxPwdAge":1, "secret":1, "possibleInferiors":1, "privilege":1, "sAMAccountType":1 }
+hashAttrNotCopied = { "dn": 1, "whenCreated": 1, "whenChanged": 1,
+ "objectGUID": 1, "uSNCreated": 1,
+ "replPropertyMetaData": 1, "uSNChanged": 1,
+ "parentGUID": 1, "objectCategory": 1,
+ "distinguishedName": 1, "nTMixedDomain": 1,
+ "showInAdvancedViewOnly": 1, "instanceType": 1,
+ "msDS-Behavior-Version":1, "nextRid":1, "cn": 1,
+ "lmPwdHistory":1, "pwdLastSet": 1,
+ "ntPwdHistory":1, "unicodePwd":1,"dBCSPwd":1,
+ "supplementalCredentials":1, "gPCUserExtensionNames":1,
+ "gPCMachineExtensionNames":1,"maxPwdAge":1, "secret":1,
+ "possibleInferiors":1, "privilege":1,
+ "sAMAccountType":1 }
# Usually for an object that already exists we do not overwrite attributes as
# they might have been changed for good reasons. Anyway for a few of them it's
# mandatory to replace them otherwise the provision will be broken somehow.
-hashOverwrittenAtt = { "prefixMap": replace, "systemMayContain": replace, "systemOnly":replace, "searchFlags":replace,
- "mayContain":replace, "systemFlags":replace, "description":replace,
- "operatingSystemVersion":replace, "adminPropertyPages":replace,
- "defaultSecurityDescriptor": replace, "wellKnownObjects":replace, "privilege":never, "groupType":replace,
- "rIDAvailablePool": never, "defaultSecurityDescriptor": replace + add}
-
+# But for attribute that are just missing we do not have to specify them as the default
+# behavior is to add missing attribute
+hashOverwrittenAtt = { "prefixMap": replace, "systemMayContain": replace,
+ "systemOnly":replace, "searchFlags":replace,
+ "mayContain":replace, "systemFlags":replace+add,
+ "description":replace, "operatingSystemVersion":replace,
+ "adminPropertyPages":replace, "groupType":replace,
+ "wellKnownObjects":replace, "privilege":never,
+ "defaultSecurityDescriptor": replace,
+ "rIDAvailablePool": never,
+ "rIDNextRID": add, "rIDUsedPool": never,
+ "defaultSecurityDescriptor": replace + add,
+ "isMemberOfPartialAttributeSet": delete,
+ "attributeDisplayNames": replace + add,
+ "versionNumber": add}
backlinked = []
+forwardlinked = set()
dn_syntax_att = []
def define_what_to_log(opts):
what = 0
credopts = options.CredentialsOptions(parser)
parser.add_option_group(credopts)
parser.add_option("--setupdir", type="string", metavar="DIR",
- help="directory with setup files")
+ help="directory with setup files")
parser.add_option("--debugprovision", help="Debug provision", action="store_true")
-parser.add_option("--debugguess", help="Print information on what is different but won't be changed", action="store_true")
-parser.add_option("--debugchange", help="Print information on what is different but won't be changed", action="store_true")
-parser.add_option("--debugchangesd", help="Print information security descriptors differences", action="store_true")
-parser.add_option("--debugall", help="Print all available information (very verbose)", action="store_true")
-parser.add_option("--full", help="Perform full upgrade of the samdb (schema, configuration, new objects, ...", action="store_true")
+parser.add_option("--debugguess", action="store_true",
+ help="Print information on what is different but won't be changed")
+parser.add_option("--debugchange", action="store_true",
+ help="Print information on what is different but won't be changed")
+parser.add_option("--debugchangesd", action="store_true",
+ help="Print information security descriptors differences")
+parser.add_option("--debugall", action="store_true",
+ help="Print all available information (very verbose)")
+parser.add_option("--resetfileacl", action="store_true",
+ help="Force a reset on filesystem acls in sysvol / netlogon share")
+parser.add_option("--full", action="store_true",
+ help="Perform full upgrade of the samdb (schema, configuration, new objects, ...")
opts = parser.parse_args()[0]
handler = logging.StreamHandler(sys.stdout)
upgrade_logger = logging.getLogger("upgradeprovision")
+upgrade_logger.setLevel(logging.INFO)
+
upgrade_logger.addHandler(handler)
provision_logger = logging.getLogger("provision")
setup_dir = find_setup_dir()
-def identic_rename(ldbobj,dn):
- """Perform a back and forth rename to trigger renaming on attribute that can't be directly modified.
- :param lbdobj: An Ldb Object
- :param dn: DN of the object to manipulate """
- (before,sep,after)=str(dn).partition('=')
- ldbobj.rename(dn,Dn(ldbobj,"%s=foo%s"%(before,after)))
- ldbobj.rename(Dn(ldbobj,"%s=foo%s"%(before,after)),dn)
+def check_for_DNS(refprivate, private):
+ """Check if the provision has already the requirement for dynamic dns
+
+ :param refprivate: The path to the private directory of the reference
+ provision
+ :param private: The path to the private directory of the upgraded
+ provision"""
+
+ spnfile = "%s/spn_update_list" % private
+ dnsfile = "%s/dns_update_list" % private
+ namedfile = lp.get("dnsupdate:path")
+
+ if not namedfile:
+ namedfile = "%s/named.conf.update" % private
+
+ if not os.path.exists(spnfile):
+ shutil.copy("%s/spn_update_list" % refprivate, "%s" % spnfile)
+
+ if not os.path.exists(dnsfile):
+ shutil.copy("%s/dns_update_list" % refprivate, "%s" % dnsfile)
+ destdir = "%s/new_dns" % private
+ dnsdir = "%s/dns" % private
-def populate_backlink(samdb, schemadn):
+ if not os.path.exists(namedfile):
+ if not os.path.exists(destdir):
+ os.mkdir(destdir)
+ if not os.path.exists(dnsdir):
+ os.mkdir(dnsdir)
+ shutil.copy("%s/named.conf" % refprivate, "%s/named.conf" % destdir)
+ shutil.copy("%s/named.txt" % refprivate, "%s/named.txt" % destdir)
+ message(SIMPLE, "It seems that you provision didn't integrate new rules "
+ "for dynamic dns update of domain related entries")
+ message(SIMPLE, "A copy of the new bind configuration files and "
+ "template as been put in %s, you should read them and configure dynamic "
+ " dns update" % destdir)
+
+
+def populate_links(samdb, schemadn):
"""Populate an array with all the back linked attributes
This attributes that are modified automaticaly when
:param samdb: A LDB object for sam.ldb file
:param schemadn: DN of the schema for the partition"""
- linkedAttHash = get_linked_attributes(Dn(samdb,str(schemadn)), samdb)
+ linkedAttHash = get_linked_attributes(Dn(samdb, str(schemadn)), samdb)
backlinked.extend(linkedAttHash.values())
+ for t in linkedAttHash.keys():
+ forwardlinked.add(t)
+
def populate_dnsyntax(samdb, schemadn):
"""Populate an array with all the attributes that have DN synthax
"""Do a a pretty print of provision parameters
:param names: list of key provision parameters """
- message(GUESS, "rootdn :"+str(names.rootdn))
- message(GUESS, "configdn :"+str(names.configdn))
- message(GUESS, "schemadn :"+str(names.schemadn))
- message(GUESS, "serverdn :"+str(names.serverdn))
- message(GUESS, "netbiosname :"+names.netbiosname)
- message(GUESS, "defaultsite :"+names.sitename)
- message(GUESS, "dnsdomain :"+names.dnsdomain)
- message(GUESS, "hostname :"+names.hostname)
- message(GUESS, "domain :"+names.domain)
- message(GUESS, "realm :"+names.realm)
- message(GUESS, "invocationid:"+names.invocation)
- message(GUESS, "policyguid :"+names.policyid)
- message(GUESS, "policyguiddc:"+str(names.policyid_dc))
- message(GUESS, "domainsid :"+str(names.domainsid))
- message(GUESS, "domainguid :"+names.domainguid)
- message(GUESS, "ntdsguid :"+names.ntdsguid)
- message(GUESS, "domainlevel :"+str(names.domainlevel))
-
-
-def handle_special_case(att, delta, new, old):
+ message(GUESS, "rootdn :" + str(names.rootdn))
+ message(GUESS, "configdn :" + str(names.configdn))
+ message(GUESS, "schemadn :" + str(names.schemadn))
+ message(GUESS, "serverdn :" + str(names.serverdn))
+ message(GUESS, "netbiosname :" + names.netbiosname)
+ message(GUESS, "defaultsite :" + names.sitename)
+ message(GUESS, "dnsdomain :" + names.dnsdomain)
+ message(GUESS, "hostname :" + names.hostname)
+ message(GUESS, "domain :" + names.domain)
+ message(GUESS, "realm :" + names.realm)
+ message(GUESS, "invocationid:" + names.invocation)
+ message(GUESS, "policyguid :" + names.policyid)
+ message(GUESS, "policyguiddc:" + str(names.policyid_dc))
+ message(GUESS, "domainsid :" + str(names.domainsid))
+ message(GUESS, "domainguid :" + names.domainguid)
+ message(GUESS, "ntdsguid :" + names.ntdsguid)
+ message(GUESS, "domainlevel :" + str(names.domainlevel))
+
+
+def handle_special_case(att, delta, new, old, usn, basedn, aldb):
"""Define more complicate update rules for some attributes
:param att: The attribute to be updated
- :param delta: A messageElement object that correspond to the difference between the updated object and the reference one
+ :param delta: A messageElement object that correspond to the difference
+ between the updated object and the reference one
:param new: The reference object
:param old: The Updated object
- :return: Tru to indicate that the attribute should be kept, False for discarding it
- """
+ :param usn: The highest usn modified by a previous (upgrade)provision
+ :param basedn: The base DN of the provision
+ :param aldb: An ldb object used to build DN
+ :return: True to indicate that the attribute should be kept, False for
+ discarding it"""
+
flag = delta.get(att).flags()
- if (att == "gPLink" or att == "gPCFileSysPath") and \
- flag == FLAG_MOD_REPLACE and str(new[0].dn).lower() == str(old[0].dn).lower():
- delta.remove(att)
- return True
- if att == "forceLogoff":
- ref=0x8000000000000000
- oldval=int(old[0][att][0])
- newval=int(new[0][att][0])
- ref == old and ref == abs(new)
- return True
- if (att == "adminDisplayName" or att == "adminDescription"):
- return True
+ # We do most of the special case handle if we do not have the
+ # highest usn as otherwise the replPropertyMetaData will guide us more
+ # correctly
+ if usn is None:
+ if (att == "sPNMappings" and flag == FLAG_MOD_REPLACE and
+ ldb.Dn(aldb, "CN=Directory Service,CN=Windows NT,"
+ "CN=Services,CN=Configuration,%s" % basedn)
+ == old[0].dn):
+ return True
+ if (att == "userAccountControl" and flag == FLAG_MOD_REPLACE and
+ ldb.Dn(aldb, "CN=Administrator,CN=Users,%s" % basedn)
+ == old[0].dn):
+ message(SIMPLE, "We suggest that you change the userAccountControl"
+ " for user Administrator from value %d to %d" %
+ (int(str(old[0][att])), int(str(new[0][att]))))
+ return False
+ if (att == "minPwdAge" and flag == FLAG_MOD_REPLACE):
+ if (long(str(old[0][att])) == 0):
+ delta[att] = MessageElement(new[0][att], FLAG_MOD_REPLACE, att)
+ return True
+
+ if (att == "member" and flag == FLAG_MOD_REPLACE):
+ hash = {}
+ newval = []
+ changeDelta=0
+ for elem in old[0][att]:
+ hash[str(elem).lower()]=1
+ newval.append(str(elem))
- if (str(old[0].dn) == "CN=Samba4-Local-Domain,%s" % (str(names.schemadn))\
- and att == "defaultObjectCategory" and flag == FLAG_MOD_REPLACE):
- return True
+ for elem in new[0][att]:
+ if not hash.has_key(str(elem).lower()):
+ changeDelta=1
+ newval.append(str(elem))
+ if changeDelta == 1:
+ delta[att] = MessageElement(newval, FLAG_MOD_REPLACE, att)
+ else:
+ delta.remove(att)
+ return True
- if (str(old[0].dn) == "CN=Title,%s"%(str(names.schemadn)) and att == "rangeUpper" and flag == FLAG_MOD_REPLACE):
- return True
+ if (att in ("gPLink", "gPCFileSysPath") and
+ flag == FLAG_MOD_REPLACE and
+ str(new[0].dn).lower() == str(old[0].dn).lower()):
+ delta.remove(att)
+ return True
- if ((att == "member" or att == "servicePrincipalName") and flag == FLAG_MOD_REPLACE):
+ if att == "forceLogoff":
+ ref=0x8000000000000000
+ oldval=int(old[0][att][0])
+ newval=int(new[0][att][0])
+ ref == old and ref == abs(new)
+ return True
+
+ if att in ("adminDisplayName", "adminDescription"):
+ return True
+
+ if (str(old[0].dn) == "CN=Samba4-Local-Domain, %s" % (names.schemadn)
+ and att == "defaultObjectCategory" and flag == FLAG_MOD_REPLACE):
+ return True
+
+ if (str(old[0].dn) == "CN=Title, %s" % (str(names.schemadn)) and
+ att == "rangeUpper" and flag == FLAG_MOD_REPLACE):
+ return True
+
+ if (str(old[0].dn) == "%s" % (str(names.rootdn))
+ and att == "subRefs" and flag == FLAG_MOD_REPLACE):
+ return True
+
+ if str(delta.dn).endswith("CN=DisplaySpecifiers, %s" % names.configdn):
+ return True
+
+ # This is a bit of special animal as we might have added
+ # already SPN entries to the list that has to be modified
+ # So we go in detail to try to find out what has to be added ...
+ if (att == "servicePrincipalName" and flag == FLAG_MOD_REPLACE):
hash = {}
newval = []
changeDelta=0
delta.remove(att)
return True
- if (str(old[0].dn) == "%s"%(str(names.rootdn)) and att == "subRefs" and flag == FLAG_MOD_REPLACE):
- return True
- if str(delta.dn).endswith("CN=DisplaySpecifiers,%s"%names.configdn):
- return True
return False
-def update_secrets(newsecrets_ldb, secrets_ldb):
- """Update secrets.ldb
-
- :param newsecrets_ldb: An LDB object that is connected to the secrets.ldb
- of the reference provision
- :param secrets_ldb: An LDB object that is connected to the secrets.ldb
- of the updated provision"""
-
- message(SIMPLE, "update secrets.ldb")
- reference = newsecrets_ldb.search(expression="dn=@MODULES", base="",
- scope=SCOPE_SUBTREE)
- current = secrets_ldb.search(expression="dn=@MODULES", base="",
- scope=SCOPE_SUBTREE)
- delta = secrets_ldb.msg_diff(current[0], reference[0])
- delta.dn = current[0].dn
- secrets_ldb.modify(delta)
-
- reference = newsecrets_ldb.search(expression="objectClass=top", base="",
- scope=SCOPE_SUBTREE, attrs=["dn"])
- current = secrets_ldb.search(expression="objectClass=top", base="",
- scope=SCOPE_SUBTREE, attrs=["dn"])
- hash_new = {}
- hash = {}
- listMissing = []
- listPresent = []
-
- empty = Message()
- for i in range(0, len(reference)):
- hash_new[str(reference[i]["dn"]).lower()] = reference[i]["dn"]
-
- # Create a hash for speeding the search of existing object in the
- # current provision
- for i in range(0, len(current)):
- hash[str(current[i]["dn"]).lower()] = current[i]["dn"]
-
- for k in hash_new.keys():
- if not hash.has_key(k):
- listMissing.append(hash_new[k])
- else:
- listPresent.append(hash_new[k])
-
- for entry in listMissing:
- reference = newsecrets_ldb.search(expression="dn=%s"%entry,base="", scope=SCOPE_SUBTREE)
- current = secrets_ldb.search(expression="dn=%s"%entry,base="", scope=SCOPE_SUBTREE)
- delta = secrets_ldb.msg_diff(empty,reference[0])
- for att in hashAttrNotCopied.keys():
- delta.remove(att)
- message(CHANGE, "Entry %s is missing from secrets.ldb"%reference[0].dn)
- for att in delta:
- message(CHANGE, " Adding attribute %s"%att)
- delta.dn = reference[0].dn
- secrets_ldb.add(delta)
-
- for entry in listPresent:
- reference = newsecrets_ldb.search(expression="dn=%s"%entry,base="", scope=SCOPE_SUBTREE)
- current = secrets_ldb.search(expression="dn=%s"%entry,base="", scope=SCOPE_SUBTREE)
- delta = secrets_ldb.msg_diff(current[0],reference[0])
- for att in hashAttrNotCopied.keys():
- delta.remove(att)
- for att in delta:
- if att == "name":
- message(CHANGE, "Found attribute name on %s, must rename the DN "%(current[0].dn))
- identic_rename(secrets_ldb,reference[0].dn)
- else:
- delta.remove(att)
-
- for entry in listPresent:
- reference = newsecrets_ldb.search(expression="dn=%s"%entry,base="", scope=SCOPE_SUBTREE)
- current = secrets_ldb.search(expression="dn=%s"%entry,base="", scope=SCOPE_SUBTREE)
- delta = secrets_ldb.msg_diff(current[0],reference[0])
- for att in hashAttrNotCopied.keys():
- delta.remove(att)
- for att in delta:
- if att != "dn":
- message(CHANGE, " Adding/Changing attribute %s to %s"%(att,current[0].dn))
-
- delta.dn = current[0].dn
- secrets_ldb.modify(delta)
-
-
-def dump_denied_change(dn,att,flagtxt,current,reference):
+def dump_denied_change(dn, att, flagtxt, current, reference):
"""Print detailed information about why a changed is denied
:param dn: DN of the object which attribute is denied
:param att: Attribute that was supposed to be upgraded
- :param flagtxt: Type of the update that should be performed (add, change, remove, ...)
+ :param flagtxt: Type of the update that should be performed
+ (add, change, remove, ...)
:param current: Value(s) of the current attribute
:param reference: Value(s) of the reference attribute"""
- message(CHANGE, "dn= "+str(dn)+" "+att+" with flag "+flagtxt+" is not allowed to be changed/removed, I discard this change ...")
- if att != "objectSid" :
+ message(CHANGE, "dn= " + str(dn)+" " + att+" with flag " + flagtxt
+ +" is not allowed to be changed/removed, I discard this change")
+ if att == "objectSid" :
+ message(CHANGE, "old : %s" % ndr_unpack(security.dom_sid, current[0]))
+ message(CHANGE, "new : %s" % ndr_unpack(security.dom_sid, reference[0]))
+ elif att == "rIDPreviousAllocationPool" or att == "rIDAllocationPool":
+ message(CHANGE, "old : %s" % int64range2str(current[0]))
+ message(CHANGE, "new : %s" % int64range2str(reference[0]))
+ else:
i = 0
- for e in range(0,len(current)):
- message(CHANGE, "old %d : %s"%(i,str(current[e])))
+ for e in range(0, len(current)):
+ message(CHANGE, "old %d : %s" % (i, str(current[e])))
i+=1
- if reference != None:
+ if reference is not None:
i = 0
- for e in range(0,len(reference)):
- message(CHANGE, "new %d : %s"%(i,str(reference[e])))
+ for e in range(0, len(reference)):
+ message(CHANGE, "new %d : %s" % (i, str(reference[e])))
i+=1
- else:
- message(CHANGE, "old : %s"%str(ndr_unpack( security.dom_sid,current[0])))
- message(CHANGE, "new : %s"%str(ndr_unpack( security.dom_sid,reference[0])))
-
-def handle_special_add(samdb,dn,names):
- """Handle special operation (like remove) on some object needed during upgrade
+def handle_special_add(samdb, dn, names):
+ """Handle special operation (like remove) on some object needed during
+ upgrade
This is mostly due to wrong creation of the object in previous provision.
:param samdb: An Ldb object representing the SAM database
:param dn: DN of the object to inspect
- :param names: list of key provision parameters"""
+ :param names: list of key provision parameters
+ """
+
dntoremove = None
- if str(dn).lower() == ("CN=IIS_IUSRS,CN=Builtin,%s" % names.rootdn).lower():
+ objDn = Dn(samdb, "CN=IIS_IUSRS, CN=Builtin, %s" % names.rootdn)
+ if dn == objDn :
#This entry was misplaced lets remove it if it exists
- dntoremove = "CN=IIS_IUSRS,CN=Users,%s" % names.rootdn
+ dntoremove = "CN=IIS_IUSRS, CN=Users, %s" % names.rootdn
- if str(dn).lower() == ("CN=Certificate Service DCOM Access,CN=Builtin,%s"%names.rootdn).lower():
+ objDn = Dn(samdb,
+ "CN=Certificate Service DCOM Access, CN=Builtin, %s" % names.rootdn)
+ if dn == objDn:
#This entry was misplaced lets remove it if it exists
- dntoremove = "CN=Certificate Service DCOM Access,CN=Users,%s"%names.rootdn
+ dntoremove = "CN=Certificate Service DCOM Access,"\
+ "CN=Users, %s" % names.rootdn
- if str(dn).lower() == ("CN=Cryptographic Operators,CN=Builtin,%s"%names.rootdn).lower():
+ objDn = Dn(samdb, "CN=Cryptographic Operators, CN=Builtin, %s" % names.rootdn)
+ if dn == objDn:
#This entry was misplaced lets remove it if it exists
- dntoremove = "CN=Cryptographic Operators,CN=Users,%s"%names.rootdn
+ dntoremove = "CN=Cryptographic Operators, CN=Users, %s" % names.rootdn
- if str(dn).lower() == ("CN=Event Log Readers,CN=Builtin,%s"%names.rootdn).lower():
+ objDn = Dn(samdb, "CN=Event Log Readers, CN=Builtin, %s" % names.rootdn)
+ if dn == objDn:
#This entry was misplaced lets remove it if it exists
- dntoremove = "CN=Event Log Readers,CN=Users,%s"%names.rootdn
+ dntoremove = "CN=Event Log Readers, CN=Users, %s" % names.rootdn
+
+ objDn = Dn(samdb,"CN=System,CN=WellKnown Security Principals,"
+ "CN=Configuration,%s" % names.rootdn)
+ if dn == objDn:
+ oldDn = Dn(samdb,"CN=Well-Known-Security-Id-System,"
+ "CN=WellKnown Security Principals,"
+ "CN=Configuration,%s" % names.rootdn)
+
+ res = samdb.search(expression="(dn=%s)" % oldDn,
+ base=str(names.rootdn),
+ scope=SCOPE_SUBTREE, attrs=["dn"],
+ controls=["search_options:1:2"])
+
+ res2 = samdb.search(expression="(dn=%s)" % dn,
+ base=str(names.rootdn),
+ scope=SCOPE_SUBTREE, attrs=["dn"],
+ controls=["search_options:1:2"])
+
+ if len(res) > 0 and len(res2) == 0:
+ message(CHANGE, "Existing object %s must be replaced by %s,"
+ "Renaming old object" % (str(oldDn), str(dn)))
+ samdb.rename(oldDn, objDn, ["relax:0"])
- if dntoremove != None:
- res = samdb.search(expression="(dn=%s)" % dntoremove, base=str(names.rootdn), scope=SCOPE_SUBTREE, attrs=["dn"], controls=["search_options:1:2"])
+ return 0
+
+ if dntoremove is not None:
+ res = samdb.search(expression="(cn=RID Set)",
+ base=str(names.rootdn),
+ scope=SCOPE_SUBTREE, attrs=["dn"],
+ controls=["search_options:1:2"])
+
+ if len(res) == 0:
+ return 2
+ res = samdb.search(expression="(dn=%s)" % dntoremove,
+ base=str(names.rootdn),
+ scope=SCOPE_SUBTREE, attrs=["dn"],
+ controls=["search_options:1:2"])
if len(res) > 0:
- message(CHANGE,"Existing object %s must be replaced by %s, removing old object"%(dntoremove,str(dn)))
+ message(CHANGE, "Existing object %s must be replaced by %s,"
+ "removing old object" % (dntoremove, str(dn)))
samdb.delete(res[0]["dn"])
+ return 0
+
+ return 1
def check_dn_nottobecreated(hash, index, listdn):
- """Check if one of the DN present in the list has a creation order greater than the current.
+ """Check if one of the DN present in the list has a creation order
+ greater than the current.
+
+ Hash is indexed by dn to be created, with each key
+ is associated the creation order.
- Hash is indexed by dn to be created, with each key is associated the creation order
First dn to be created has the creation order 0, second has 1, ...
Index contain the current creation order
- :param hash: Hash holding the different DN of the object to be created as key
+ :param hash: Hash holding the different DN of the object to be
+ created as key
:param index: Current creation order
:param listdn: List of DNs on which the current DN depends on
- :return: None if the current object do not depend on other object or if all object have been
- created before."""
- if listdn == None:
+ :return: None if the current object do not depend on other
+ object or if all object have been created before."""
+ if listdn is None:
return None
for dn in listdn:
key = str(dn).lower()
return None
+
def add_missing_object(ref_samdb, samdb, dn, names, basedn, hash, index):
"""Add a new object if the dependencies are satisfied
- The function add the object if the object on which it depends are already created
- :param ref_samdb: Ldb object representing the SAM db of the reference provision
- :param samdb: Ldb object representing the SAM db of the upgraded provision
+ The function add the object if the object on which it depends are already
+ created
+
+ :param ref_samdb: Ldb object representing the SAM db of the reference
+ provision
+ :param samdb: Ldb object representing the SAM db of the upgraded
+ provision
:param dn: DN of the object to be added
:param names: List of key provision parameters
:param basedn: DN of the partition to be updated
- :param hash: Hash holding the different DN of the object to be created as key
+ :param hash: Hash holding the different DN of the object to be
+ created as key
:param index: Current creation order
:return: True if the object was created False otherwise"""
- handle_special_add(samdb,dn,names)
- reference = ref_samdb.search(expression="dn=%s" % (str(dn)),base=basedn,
- scope=SCOPE_SUBTREE,controls=["search_options:1:2"])
+
+ ret = handle_special_add(samdb, dn, names)
+
+ if ret == 2:
+ return False
+
+ if ret == 0:
+ return True
+
+
+ reference = ref_samdb.search(expression="dn=%s" % (str(dn)), base=basedn,
+ scope=SCOPE_SUBTREE, controls=["search_options:1:2"])
empty = Message()
- delta = samdb.msg_diff(empty,reference[0])
+ delta = samdb.msg_diff(empty, reference[0])
delta.dn
- for att in hashAttrNotCopied.keys():
- delta.remove(att)
- for att in backlinked:
- delta.remove(att)
- depend_on_yettobecreated = None
- for att in dn_syntax_att:
- depend_on_yet_tobecreated = check_dn_nottobecreated(hash,index,delta.get(str(att)))
- if depend_on_yet_tobecreated != None:
- message(CHANGE, "Object %s depends on %s in attribute %s, delaying the creation"
- %(str(dn),depend_on_yet_tobecreated,str(att)))
- return False
- delta.dn = dn
- message(CHANGE,"Object %s will be added"%dn)
- samdb.add(delta, ["relax:0"])
- return True
+ skip = False
+ try:
+ if str(reference[0].get("cn")) == "RID Set":
+ for klass in reference[0].get("objectClass"):
+ if str(klass).lower() == "ridset":
+ skip = True
+ finally:
+ if delta.get("objectSid"):
+ sid = str(ndr_unpack(security.dom_sid, str(reference[0]["objectSid"])))
+ m = re.match(r".*-(\d+)$", sid)
+ if m and int(m.group(1))>999:
+ delta.remove("objectSid")
+ for att in hashAttrNotCopied.keys():
+ delta.remove(att)
+ for att in backlinked:
+ delta.remove(att)
+ depend_on_yettobecreated = None
+ for att in dn_syntax_att:
+ depend_on_yet_tobecreated = check_dn_nottobecreated(hash, index,
+ delta.get(str(att)))
+ if depend_on_yet_tobecreated is not None:
+ message(CHANGE, "Object %s depends on %s in attribute %s,"
+ "delaying the creation" % (dn,
+ depend_on_yet_tobecreated, att))
+ return False
+
+ delta.dn = dn
+ if not skip:
+ message(CHANGE,"Object %s will be added" % dn)
+ samdb.add(delta, ["relax:0"])
+ else:
+ message(CHANGE,"Object %s was skipped" % dn)
+
+ return True
def gen_dn_index_hash(listMissing):
"""Generate a hash associating the DN to its creation order
def add_deletedobj_containers(ref_samdb, samdb, names):
"""Add the object containter: CN=Deleted Objects
- This function create the container for each partition that need one and then reference the object into
- the root of the partition
- :param ref_samdb: Ldb object representing the SAM db of the reference provision
+ This function create the container for each partition that need one and
+ then reference the object into the root of the partition
+
+ :param ref_samdb: Ldb object representing the SAM db of the reference
+ provision
:param samdb: Ldb object representing the SAM db of the upgraded provision
:param names: List of key provision parameters"""
- partitions = [str(names.rootdn),str(names.configdn)]
+
+ wkoPrefix = "B:32:18E2EA80684F11D2B9AA00C04F79F805"
+ partitions = [str(names.rootdn), str(names.configdn)]
for part in partitions:
- ref_delObjCnt = ref_samdb.search(expression="(cn=Deleted Objects)",base=part, scope=SCOPE_SUBTREE,attrs=["dn"],controls=["show_deleted:0"])
- delObjCnt = samdb.search(expression="(cn=Deleted Objects)",base=part, scope=SCOPE_SUBTREE,attrs=["dn"],controls=["show_deleted:0"])
+ ref_delObjCnt = ref_samdb.search(expression="(cn=Deleted Objects)",
+ base=part, scope=SCOPE_SUBTREE,
+ attrs=["dn"],
+ controls=["show_deleted:0"])
+ delObjCnt = samdb.search(expression="(cn=Deleted Objects)",
+ base=part, scope=SCOPE_SUBTREE,
+ attrs=["dn"],
+ controls=["show_deleted:0"])
if len(ref_delObjCnt) > len(delObjCnt):
- reference = ref_samdb.search(expression="cn=Deleted Objects",base=part,
- scope=SCOPE_SUBTREE,controls=["show_deleted:0"])
+ reference = ref_samdb.search(expression="cn=Deleted Objects",
+ base=part, scope=SCOPE_SUBTREE,
+ controls=["show_deleted:0"])
empty = Message()
- delta = samdb.msg_diff(empty,reference[0])
+ delta = samdb.msg_diff(empty, reference[0])
- delta.dn = Dn(samdb,str(reference[0]["dn"]))
+ delta.dn = Dn(samdb, str(reference[0]["dn"]))
for att in hashAttrNotCopied.keys():
delta.remove(att)
samdb.add(delta)
listwko = []
- res = samdb.search(expression="(objectClass=*)",base=part,
- scope=SCOPE_BASE, attrs=["dn","wellKnownObjects"])
+ res = samdb.search(expression="(objectClass=*)", base=part,
+ scope=SCOPE_BASE,
+ attrs=["dn", "wellKnownObjects"])
- targetWKO = "B:32:18E2EA80684F11D2B9AA00C04F79F805:%s" % str(reference[0]["dn"])
- found = 0
+ targetWKO = "%s:%s" % (wkoPrefix, str(reference[0]["dn"]))
+ found = False
if len(res[0]) > 0:
wko = res[0]["wellKnownObjects"]
# The wellKnownObject that we want to add.
-
for o in wko:
if str(o) == targetWKO:
- found = 1
+ found = True
listwko.append(str(o))
+
if not found:
listwko.append(targetWKO)
delta = Message()
- delta.dn = Dn(samdb,str(res[0]["dn"]))
- delta["wellKnownObjects"] = MessageElement(listwko, FLAG_MOD_REPLACE, "wellKnownObjects" )
+ delta.dn = Dn(samdb, str(res[0]["dn"]))
+ delta["wellKnownObjects"] = MessageElement(listwko,
+ FLAG_MOD_REPLACE,
+ "wellKnownObjects" )
samdb.modify(delta)
def add_missing_entries(ref_samdb, samdb, names, basedn, list):
"""Add the missing object whose DN is the list
- The function add the object if the object on which it depends are already created
- :param ref_samdb: Ldb object representing the SAM db of the reference provision
- :param samdb: Ldb object representing the SAM db of the upgraded provision
+ The function add the object if the objects on which it depends are
+ already created.
+
+ :param ref_samdb: Ldb object representing the SAM db of the reference
+ provision
+ :param samdb: Ldb object representing the SAM db of the upgraded
+ provision
:param dn: DN of the object to be added
:param names: List of key provision parameters
:param basedn: DN of the partition to be updated
:param list: List of DN to be added in the upgraded provision"""
+
listMissing = []
listDefered = list
listDefered = []
hashMissing = gen_dn_index_hash(listMissing)
for dn in listMissing:
- ret = add_missing_object(ref_samdb,samdb,dn,names,basedn,hashMissing,index)
+ ret = add_missing_object(ref_samdb, samdb, dn, names, basedn,
+ hashMissing, index)
index = index + 1
if ret == 0:
- #DN can't be created because it depends on some other DN in the list
+ # DN can't be created because it depends on some
+ # other DN in the list
listDefered.append(dn)
+
if len(listDefered) != 0:
- raise ProvisioningError("Unable to insert missing elements: circular references")
+ raise ProvisioningError("Unable to insert missing elements:"
+ "circular references")
+
+def handle_links(samdb, att, basedn, dn, value, ref_value, delta):
+ """This function handle updates on links
+
+ :param samdb: An LDB object pointing to the updated provision
+ :param att: Attribute to update
+ :param basedn: The root DN of the provision
+ :param dn: The DN of the inspected object
+ :param value: The value of the attribute
+ :param ref_value: The value of this attribute in the reference provision
+ :param delta: The MessageElement object that will be applied for
+ transforming the current provision"""
+
+ res = samdb.search(expression="dn=%s" % dn, base=basedn,
+ controls=["search_options:1:2", "reveal:1"],
+ attrs=[att])
+
+ blacklist = {}
+ hash = {}
+ newlinklist = []
+ changed = False
+
+ newlinklist.extend(value)
+
+ for e in value:
+ hash[e] = 1
+ # for w2k domain level the reveal won't reveal anything ...
+ # it means that we can readd links that were removed on purpose ...
+ # Also this function in fact just accept add not removal
+
+ for e in res[0][att]:
+ if not hash.has_key(e):
+ # We put in the blacklist all the element that are in the "revealed"
+ # result and not in the "standard" result
+ # This element are links that were removed before and so that
+ # we don't wan't to readd
+ blacklist[e] = 1
+
+ for e in ref_value:
+ if not blacklist.has_key(e) and not hash.has_key(e):
+ newlinklist.append(str(e))
+ changed = True
+ if changed:
+ delta[att] = MessageElement(newlinklist, FLAG_MOD_REPLACE, att)
+ else:
+ delta.remove(att)
+
+
+msg_elt_flag_strs = {
+ ldb.FLAG_MOD_ADD: "MOD_ADD",
+ ldb.FLAG_MOD_REPLACE: "MOD_REPLACE",
+ ldb.FLAG_MOD_DELETE: "MOD_DELETE" }
+
+
+def update_present(ref_samdb, samdb, basedn, listPresent, usns, invocationid):
+ """ This function updates the object that are already present in the
+ provision
+
+ :param ref_samdb: An LDB object pointing to the reference provision
+ :param samdb: An LDB object pointing to the updated provision
+ :param basedn: A string with the value of the base DN for the provision
+ (ie. DC=foo, DC=bar)
+ :param listPresent: A list of object that is present in the provision
+ :param usns: A list of USN range modified by previous provision and
+ upgradeprovision
+ :param invocationid: The value of the invocationid for the current DC"""
+
+ global defSDmodified
+ # This hash is meant to speedup lookup of attribute name from an oid,
+ # it's for the replPropertyMetaData handling
+ hash_oid_name = {}
+ res = samdb.search(expression="objectClass=attributeSchema", base=basedn,
+ controls=["search_options:1:2"], attrs=["attributeID",
+ "lDAPDisplayName"])
+ if len(res) > 0:
+ for e in res:
+ strDisplay = str(e.get("lDAPDisplayName"))
+ hash_oid_name[str(e.get("attributeID"))] = strDisplay
+ else:
+ msg = "Unable to insert missing elements: circular references"
+ raise ProvisioningError(msg)
+
+ changed = 0
+ controls = ["search_options:1:2", "sd_flags:1:2"]
+ for dn in listPresent:
+ reference = ref_samdb.search(expression="dn=%s" % (str(dn)), base=basedn,
+ scope=SCOPE_SUBTREE,
+ controls=controls)
+ current = samdb.search(expression="dn=%s" % (str(dn)), base=basedn,
+ scope=SCOPE_SUBTREE, controls=controls)
+
+ if (
+ (str(current[0].dn) != str(reference[0].dn)) and
+ (str(current[0].dn).upper() == str(reference[0].dn).upper())
+ ):
+ message(CHANGE, "Name are the same but case change,"\
+ "let's rename %s to %s" % (str(current[0].dn),
+ str(reference[0].dn)))
+ identic_rename(samdb, reference[0].dn)
+ current = samdb.search(expression="dn=%s" % (str(dn)), base=basedn,
+ scope=SCOPE_SUBTREE,
+ controls=controls)
+
+ delta = samdb.msg_diff(current[0], reference[0])
+
+ for att in hashAttrNotCopied.keys():
+ delta.remove(att)
+
+ for att in backlinked:
+ delta.remove(att)
+
+ delta.remove("name")
+
+ if len(delta.items()) > 1 and usns is not None:
+ # Fetch the replPropertyMetaData
+ res = samdb.search(expression="dn=%s" % (str(dn)), base=basedn,
+ scope=SCOPE_SUBTREE, controls=controls,
+ attrs=["replPropertyMetaData"])
+ ctr = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
+ str(res[0]["replPropertyMetaData"])).ctr
+
+ hash_attr_usn = {}
+ for o in ctr.array:
+ # We put in this hash only modification
+ # made on the current host
+ att = hash_oid_name[samdb.get_oid_from_attid(o.attid)]
+ if str(o.originating_invocation_id) == str(invocationid):
+ # Note we could just use 1 here
+ hash_attr_usn[att] = o.originating_usn
+ else:
+ hash_attr_usn[att] = -1
+
+ isFirst = 0
+ txt = ""
+
+ for att in delta:
+ if usns is not None:
+ # We have updated by provision usn information so let's exploit
+ # replMetadataProperties
+ if att in forwardlinked:
+ if current[0].get():
+ curval = current[0][att]
+ else:
+ curval = ()
+ if reference[0].get():
+ refval = reference[0][att]
+ else:
+ refval = ()
+ handle_links(samdb, att, basedn, current[0]["dn"],
+ curval, refval, delta)
+ continue
+
+ if isFirst == 0 and len(delta.items())>1:
+ isFirst = 1
+ txt = "%s\n" % (str(dn))
+ if att == "dn":
+ # There is always a dn attribute after a msg_diff
+ continue
+ if att == "rIDAvailablePool":
+ delta.remove(att)
+ continue
+ if att == "objectSid":
+ delta.remove(att)
+ continue
+ if att == "creationTime":
+ delta.remove(att)
+ continue
+ if att == "oEMInformation":
+ delta.remove(att)
+ continue
+ if att == "msDs-KeyVersionNumber":
+ # This is the kvno of the computer/user it's a very bad
+ # idea to change it
+ delta.remove(att)
+ continue
+ if handle_special_case(att, delta, reference, current, usns, basedn, samdb):
+ # This attribute is "complicated" to handle and handling
+ # was done in handle_special_case
+ continue
+ attrUSN = hash_attr_usn.get(att)
+ if att == "forceLogoff" and attrUSN is None:
+ continue
+ if attrUSN is None:
+ delta.remove(att)
+ continue
+ if att == "nTSecurityDescriptor":
+ cursd = ndr_unpack(security.descriptor,
+ str(current[0]["nTSecurityDescriptor"]))
+ cursddl = cursd.as_sddl(names.domainsid)
+ refsd = ndr_unpack(security.descriptor,
+ str(reference[0]["nTSecurityDescriptor"]))
+ refsddl = cursd.as_sddl(names.domainsid)
+
+ if get_diff_sddls(refsddl, cursddl) == "":
+ message(CHANGE, "sd are identical")
+ else:
+ message(CHANGE, "sd are not identical")
+ if attrUSN == -1:
+ # This attribute was last modified by another DC forget
+ # about it
+ message(CHANGE, "%sAttribute: %s has been"
+ "created/modified/deleted by another DC,"
+ " do nothing" % (txt, att ))
+ txt = ""
+ delta.remove(att)
+ continue
+ elif not usn_in_range(int(attrUSN), usns):
+ message(CHANGE, "%sAttribute: %s has been"
+ "created/modified/deleted not during a"
+ " provision or upgradeprovision: current"
+ " usn %d , do nothing" % (txt, att, attrUSN))
+ txt = ""
+ delta.remove(att)
+ continue
+ else:
+ if att == "defaultSecurityDescriptor":
+ defSDmodified = True
+ if attrUSN:
+ message(CHANGE, "%sAttribute: %s will be modified"
+ "/deleted it was last modified"
+ " during a provision, current usn:"
+ "%d" % (txt, att, attrUSN))
+ txt = ""
+ else:
+ message(CHANGE, "%sAttribute: %s will be added because"
+ " it hasn't existed before " % (txt, att))
+ txt = ""
+ continue
+
+ else:
+ # Old school way of handling things for pre alpha12 upgrade
+ defSDmodified = True
+ msgElt = delta.get(att)
+
+ if att == "nTSecurityDescriptor":
+ delta.remove(att)
+ continue
+
+ if att == "dn":
+ continue
+
+ if not hashOverwrittenAtt.has_key(att):
+ if msgElt.flags() != FLAG_MOD_ADD:
+ if not handle_special_case(att, delta, reference, current,
+ usns, basedn, samdb):
+ if opts.debugchange or opts.debugall:
+ try:
+ dump_denied_change(dn, att,
+ msg_elt_flag_strs[msgElt.flags()],
+ current[0][att], reference[0][att])
+ except KeyError:
+ dump_denied_change(dn, att,
+ msg_elt_flag_strs[msgElt.flags()],
+ current[0][att], None)
+ delta.remove(att)
+ continue
+ else:
+ if hashOverwrittenAtt.get(att)&2**msgElt.flags() :
+ continue
+ elif hashOverwrittenAtt.get(att)==never:
+ delta.remove(att)
+ continue
+
+ delta.dn = dn
+ if len(delta.items()) >1:
+ attributes=", ".join(delta.keys())
+ message(CHANGE, "%s is different from the reference one, changed"
+ " attributes: %s\n" % (dn, attributes))
+ changed += 1
+ samdb.modify(delta)
+ return changed
+
+def reload_full_schema(samdb, names):
+ """Load the updated schema with all the new and existing classes
+ and attributes.
+
+ :param samdb: An LDB object connected to the sam.ldb of the update
+ provision
+ :param names: List of key provision parameters
+ """
+
+ current = samdb.search(expression="objectClass=*", base=str(names.schemadn),
+ scope=SCOPE_SUBTREE)
+ schema_ldif = ""
+ prefixmap_data = ""
+
+ for ent in current:
+ schema_ldif += samdb.write_ldif(ent, ldb.CHANGETYPE_NONE)
+
+ prefixmap_data = open(setup_path("prefixMap.txt"), 'r').read()
+ prefixmap_data = b64encode(prefixmap_data)
+ # We don't actually add this ldif, just parse it
+ prefixmap_ldif = "dn: cn=schema\nprefixMap:: %s\n\n" % prefixmap_data
-def update_partition(ref_samdb, samdb, basedn, names, use_ref_schema, highestUSN):
+ dsdb._dsdb_set_schema_from_ldif(samdb, prefixmap_ldif, schema_ldif)
+
+
+def update_partition(ref_samdb, samdb, basedn, names, schema, provisionUSNs, prereloadfunc):
"""Check differences between the reference provision and the upgraded one.
- It looks for all objects which base DN is name. If ischema is "false" then
- the scan is done in cross partition mode.
- If "use_ref_schema" is true, then special handling is done for dealing with schema
+ It looks for all objects which base DN is name.
- This function will also add the missing object and update existing object to add
- or remove attributes that were missing.
- :param ref_sambdb: An LDB object conntected to the sam.ldb of the reference provision
- :param samdb: An LDB object connected to the sam.ldb of the update provision
+ This function will also add the missing object and update existing object
+ to add or remove attributes that were missing.
+
+ :param ref_sambdb: An LDB object conntected to the sam.ldb of the
+ reference provision
+ :param samdb: An LDB object connected to the sam.ldb of the update
+ provision
:param basedn: String value of the DN of the partition
:param names: List of key provision parameters
- :param use_ref_schema: A flag to indicate if we should use the shema of the reference provision
- :param highestUSN: The highest USN modified by provision/upgradeprovision last time"""
+ :param schema: A Schema object
+ :param provisionUSNs: The USNs modified by provision/upgradeprovision
+ last time
+ :param prereloadfunc: A function that must be executed just before the reload
+ of the schema
+ """
hash_new = {}
hash = {}
# Connect to the reference provision and get all the attribute in the
# partition referred by name
- reference = ref_samdb.search(expression="objectClass=*",base=basedn, scope=SCOPE_SUBTREE,attrs=["dn"],controls=["search_options:1:2"])
- current = samdb.search(expression="objectClass=*",base=basedn, scope=SCOPE_SUBTREE,attrs=["dn"],controls=["search_options:1:2"])
+ reference = ref_samdb.search(expression="objectClass=*", base=basedn,
+ scope=SCOPE_SUBTREE, attrs=["dn"],
+ controls=["search_options:1:2"])
+ current = samdb.search(expression="objectClass=*", base=basedn,
+ scope=SCOPE_SUBTREE, attrs=["dn"],
+ controls=["search_options:1:2"])
# Create a hash for speeding the search of new object
- for i in range(0,len(reference)):
+ for i in range(0, len(reference)):
hash_new[str(reference[i]["dn"]).lower()] = reference[i]["dn"]
# Create a hash for speeding the search of existing object in the
# current provision
- for i in range(0,len(current)):
+ for i in range(0, len(current)):
hash[str(current[i]["dn"]).lower()] = current[i]["dn"]
for k in hash_new.keys():
if not hash.has_key(k):
- if not str(hash_new[k]) == "CN=Deleted Objects,%s" % names.rootdn:
+ if not str(hash_new[k]) == "CN=Deleted Objects, %s" % names.rootdn:
listMissing.append(hash_new[k])
else:
listPresent.append(hash_new[k])
listMissing.sort(dn_sort)
listPresent.sort(dn_sort)
- if use_ref_schema == 1:
- # The following lines (up to the for loop) is to load the up to
- # date schema into our current LDB
- # a complete schema is needed as the insertion of attributes
- # and class is done against it
- # and the schema is self validated
- # The double ldb open and schema validation is taken from the
- # initial provision script
- # it's not certain that it is really needed ....
- schema = Schema(setup_path, names.domainsid, schemadn=basedn, serverdn=str(names.serverdn))
- # Load the schema from the one we computed earlier
- samdb.set_schema_from_ldb(schema.ldb)
-
+ # The following lines is to load the up to
+ # date schema into our current LDB
+ # a complete schema is needed as the insertion of attributes
+ # and class is done against it
+ # and the schema is self validated
+ samdb.set_schema(schema)
try:
- message(SIMPLE,"There are %d missing objects" % (len(listMissing)))
+ message(SIMPLE, "There are %d missing objects" % (len(listMissing)))
add_deletedobj_containers(ref_samdb, samdb, names)
- add_missing_entries(ref_samdb,samdb,names,basedn,listMissing)
- changed = 0
-
- for dn in listPresent:
- reference = ref_samdb.search(expression="dn=%s" % (str(dn)),base=basedn, scope=SCOPE_SUBTREE,controls=["search_options:1:2"])
- current = samdb.search(expression="dn=%s" % (str(dn)),base=basedn, scope=SCOPE_SUBTREE,controls=["search_options:1:2"])
- if ((str(current[0].dn) != str(reference[0].dn)) and (str(current[0].dn).upper() == str(reference[0].dn).upper())):
- message(CHANGE,"Name are the same but case change, let's rename %s to %s" % (str(current[0].dn),str(reference[0].dn)))
- identic_rename(samdb,reference[0].dn)
- current = samdb.search(expression="dn=%s" % (str(dn)),base=basedn, scope=SCOPE_SUBTREE,controls=["search_options:1:2"])
-
- delta = samdb.msg_diff(current[0],reference[0])
- for att in hashAttrNotCopied.keys():
- delta.remove(att)
- for att in backlinked:
- delta.remove(att)
- delta.remove("parentGUID")
- nb = 0
-
- for att in delta:
- msgElt = delta.get(att)
- if att == "dn":
- continue
- if att == "name":
- delta.remove(att)
- continue
- if (not hashOverwrittenAtt.has_key(att) or not (hashOverwrittenAtt.get(att)&2^msgElt.flags())):
- if hashOverwrittenAtt.has_key(att) and hashOverwrittenAtt.get(att)==never:
- delta.remove(att)
- continue
- if not handle_special_case(att,delta,reference,current) and msgElt.flags()!=FLAG_MOD_ADD:
- if opts.debugchange or opts.debugall:
- try:
- dump_denied_change(dn,att,messageEltFlagToString(msgElt.flags()),current[0][att],reference[0][att])
- except KeyError:
- dump_denied_change(dn,att,messageEltFlagToString(msgElt.flags()),current[0][att],None)
- delta.remove(att)
+ add_missing_entries(ref_samdb, samdb, names, basedn, listMissing)
- delta.dn = dn
- if len(delta.items()) >1:
- attributes=",".join(delta.keys())
- message(CHANGE,"%s is different from the reference one, changed attributes: %s" % (dn,attributes))
- changed = changed + 1
- samdb.modify(delta)
+ prereloadfunc()
+ message(SIMPLE, "Reloading a merged schema, it might trigger"\
+ " reindexing so please be patient")
+ reload_full_schema(samdb, names)
+ message(SIMPLE, "Schema reloaded !")
- message(SIMPLE,"There are %d changed objects" % (changed))
+ changed = update_present(ref_samdb, samdb, basedn, listPresent,
+ provisionUSNs, names.invocation)
+ message(SIMPLE, "There are %d changed objects" % (changed))
return 1
- except Exception, err:
- message(ERROR,"Exception during upgrade of samdb: %s" % str(err))
+ except StandardError, err:
+ message(ERROR, "Exception during upgrade of samdb:")
+ (typ, val, tb) = sys.exc_info()
+ traceback.print_exception(typ, val, tb)
return 0
-def check_updated_sd(ref_sam,cur_sam, names):
- """Check if the security descriptor in the upgraded provision are the same as the reference
+def check_updated_sd(ref_sam, cur_sam, names):
+ """Check if the security descriptor in the upgraded provision are the same
+ as the reference
- :param ref_sam: A LDB object connected to the sam.ldb file used as the reference provision
- :param cur_sam: A LDB object connected to the sam.ldb file used as upgraded provision
+ :param ref_sam: A LDB object connected to the sam.ldb file used as
+ the reference provision
+ :param cur_sam: A LDB object connected to the sam.ldb file used as
+ upgraded provision
:param names: List of key provision parameters"""
- reference = ref_sam.search(expression="objectClass=*",base=str(names.rootdn), scope=SCOPE_SUBTREE,attrs=["dn","nTSecurityDescriptor"],controls=["search_options:1:2"])
- current = cur_sam.search(expression="objectClass=*",base=str(names.rootdn), scope=SCOPE_SUBTREE,attrs=["dn","nTSecurityDescriptor"],controls=["search_options:1:2"])
- hash_new = {}
- for i in range(0,len(reference)):
- hash_new[str(reference[i]["dn"]).lower()] = ndr_unpack(security.descriptor,str(reference[i]["nTSecurityDescriptor"])).as_sddl(names.domainsid)
+ reference = ref_sam.search(expression="objectClass=*", base=str(names.rootdn),
+ scope=SCOPE_SUBTREE,
+ attrs=["dn", "nTSecurityDescriptor"],
+ controls=["search_options:1:2"])
+ current = cur_sam.search(expression="objectClass=*", base=str(names.rootdn),
+ scope=SCOPE_SUBTREE,
+ attrs=["dn", "nTSecurityDescriptor"],
+ controls=["search_options:1:2"])
+ hash = {}
+ for i in range(0, len(reference)):
+ refsd = ndr_unpack(security.descriptor,
+ str(reference[i]["nTSecurityDescriptor"]))
+ hash[str(reference[i]["dn"]).lower()] = refsd.as_sddl(names.domainsid)
- for i in range(0,len(current)):
- key = str(current[i]["dn"]).lower()
- if hash_new.has_key(key):
- sddl = ndr_unpack(security.descriptor,str(current[i]["nTSecurityDescriptor"])).as_sddl(names.domainsid)
- if sddl != hash_new[key]:
- print "%s \nnew sddl / sddl in ref" % key
- print "%s\n%s\n" % (sddl,hash_new[key])
+ for i in range(0, len(current)):
+ key = str(current[i]["dn"]).lower()
+ if hash.has_key(key):
+ cursd = ndr_unpack(security.descriptor,
+ str(current[i]["nTSecurityDescriptor"]))
+ sddl = cursd.as_sddl(names.domainsid)
+ if sddl != hash[key]:
+ txt = get_diff_sddls(hash[key], sddl)
+ if txt != "":
+ message(CHANGESD, "On object %s ACL is different"
+ " \n%s" % (current[i]["dn"], txt))
-def rebuild_sd(samdb, names):
- """Rebuild security descriptor of the current provision from scratch
- During the different pre release of samba4 security descriptors (SD) were notarly broken (up to alpha11 included)
- This function allow to get them back in order, this function make the assumption that nobody has modified manualy an SD
- and so SD can be safely recalculated from scratch to get them right.
- :param names: List of key provision parameters"""
+def fix_partition_sd(samdb, names):
+ """This function fix the SD for partition containers (basedn, configdn, ...)
+ This is needed because some provision use to have broken SD on containers
+ :param samdb: An LDB object pointing to the sam of the current provision
+ :param names: A list of key provision parameters
+ """
# First update the SD for the rootdn
- res = samdb.search(expression="objectClass=*", base=str(names.rootdn), scope=SCOPE_BASE,\
- attrs=["dn", "whenCreated"], controls=["search_options:1:2"])
+ res = samdb.search(expression="objectClass=*", base=str(names.rootdn),
+ scope=SCOPE_BASE, attrs=["dn", "whenCreated"],
+ controls=["search_options:1:2"])
delta = Message()
- delta.dn = Dn(samdb,str(res[0]["dn"]))
+ delta.dn = Dn(samdb, str(res[0]["dn"]))
descr = get_domain_descriptor(names.domainsid)
- delta["nTSecurityDescriptor"] = MessageElement(descr, FLAG_MOD_REPLACE, "nTSecurityDescriptor")
- samdb.modify(delta,["recalculate_sd:0"])
+ delta["nTSecurityDescriptor"] = MessageElement(descr, FLAG_MOD_REPLACE,
+ "nTSecurityDescriptor")
+ samdb.modify(delta, ["recalculate_sd:0"])
# Then the config dn
- res = samdb.search(expression="objectClass=*",base=str(names.configdn), scope=SCOPE_BASE,attrs=["dn","whenCreated"],controls=["search_options:1:2"])
+ res = samdb.search(expression="objectClass=*", base=str(names.configdn),
+ scope=SCOPE_BASE, attrs=["dn", "whenCreated"],
+ controls=["search_options:1:2"])
delta = Message()
- delta.dn = Dn(samdb,str(res[0]["dn"]))
+ delta.dn = Dn(samdb, str(res[0]["dn"]))
descr = get_config_descriptor(names.domainsid)
- delta["nTSecurityDescriptor"] = MessageElement(descr, FLAG_MOD_REPLACE, "nTSecurityDescriptor" )
- samdb.modify(delta,["recalculate_sd:0"])
+ delta["nTSecurityDescriptor"] = MessageElement(descr, FLAG_MOD_REPLACE,
+ "nTSecurityDescriptor" )
+ samdb.modify(delta, ["recalculate_sd:0"])
# Then the schema dn
- res = samdb.search(expression="objectClass=*",base=str(names.schemadn), scope=SCOPE_BASE,attrs=["dn","whenCreated"],controls=["search_options:1:2"])
+ res = samdb.search(expression="objectClass=*", base=str(names.schemadn),
+ scope=SCOPE_BASE, attrs=["dn", "whenCreated"],
+ controls=["search_options:1:2"])
+
delta = Message()
- delta.dn = Dn(samdb,str(res[0]["dn"]))
+ delta.dn = Dn(samdb, str(res[0]["dn"]))
descr = get_schema_descriptor(names.domainsid)
- delta["nTSecurityDescriptor"] = MessageElement(descr, FLAG_MOD_REPLACE, "nTSecurityDescriptor" )
- samdb.modify(delta,["recalculate_sd:0"])
+ delta["nTSecurityDescriptor"] = MessageElement(descr, FLAG_MOD_REPLACE,
+ "nTSecurityDescriptor" )
+ samdb.modify(delta, ["recalculate_sd:0"])
+
+def rebuild_sd(samdb, names):
+ """Rebuild security descriptor of the current provision from scratch
+
+ During the different pre release of samba4 security descriptors (SD)
+ were notarly broken (up to alpha11 included)
+ This function allow to get them back in order, this function make the
+ assumption that nobody has modified manualy an SD
+ and so SD can be safely recalculated from scratch to get them right.
+
+ :param names: List of key provision parameters"""
+
- # Then the rest
hash = {}
- res = samdb.search(expression="objectClass=*",base=str(names.rootdn), scope=SCOPE_SUBTREE,attrs=["dn","whenCreated"],controls=["search_options:1:2"])
+ res = samdb.search(expression="objectClass=*", base=str(names.rootdn),
+ scope=SCOPE_SUBTREE, attrs=["dn", "whenCreated"],
+ controls=["search_options:1:2"])
for obj in res:
if not (str(obj["dn"]) == str(names.rootdn) or
- str(obj["dn"]) == str(names.configdn) or \
+ str(obj["dn"]) == str(names.configdn) or
str(obj["dn"]) == str(names.schemadn)):
hash[str(obj["dn"])] = obj["whenCreated"]
for key in listkeys:
try:
delta = Message()
- delta.dn = Dn(samdb,key)
- delta["whenCreated"] = MessageElement(hash[key], FLAG_MOD_REPLACE, "whenCreated" )
- samdb.modify(delta,["recalculate_sd:0"])
+ delta.dn = Dn(samdb, key)
+ delta["whenCreated"] = MessageElement(hash[key], FLAG_MOD_REPLACE,
+ "whenCreated" )
+ samdb.modify(delta, ["recalculate_sd:0"])
except:
# XXX: We should always catch an explicit exception.
# What could go wrong here?
samdb.transaction_cancel()
- res = samdb.search(expression="objectClass=*", base=str(names.rootdn), scope=SCOPE_SUBTREE,\
- attrs=["dn","nTSecurityDescriptor"], controls=["search_options:1:2"])
- print "bad stuff" +ndr_unpack(security.descriptor,str(res[0]["nTSecurityDescriptor"])).as_sddl(names.domainsid)
+ res = samdb.search(expression="objectClass=*", base=str(names.rootdn),
+ scope=SCOPE_SUBTREE,
+ attrs=["dn", "nTSecurityDescriptor"],
+ controls=["search_options:1:2"])
+ badsd = ndr_unpack(security.descriptor,
+ str(res[0]["nTSecurityDescriptor"]))
+ print "bad stuff %s" % badsd.as_sddl(names.domainsid)
return
+def removeProvisionUSN(samdb):
+ attrs = [samba.provision.LAST_PROVISION_USN_ATTRIBUTE, "dn"]
+ entry = samdb.search(expression="dn=@PROVISION", base = "",
+ scope=SCOPE_SUBTREE,
+ controls=["search_options:1:2"],
+ attrs=attrs)
+ empty = Message()
+ empty.dn = entry[0].dn
+ delta = samdb.msg_diff(entry[0], empty)
+ delta.remove("dn")
+ delta.dn = entry[0].dn
+ samdb.modify(delta)
-def getLastProvisionUSN(paths, creds, session, lp):
- """Get the lastest USN modified by a provision or an upgradeprovision
-
- :param paths: An object holding the different importants paths for upgraded provision object
- :param creds: Credential used for openning LDB files
- :param session: Session to use for openning LDB files
- :param lp: A loadparam object
- :return an integer corresponding to the highest USN modified by (upgrade)provision, 0 is this value is unknown"""
-
- sam = Ldb(paths.samdb, session_info=session, credentials=creds, lp=lp, options=["modules:"] )
- entry = sam.search(expression="(&(dn=@PROVISION)(%s=*))" % LAST_PROVISION_USN_ATTRIBUTE, scope=SCOPE_SUBTREE,attrs=[LAST_PROVISION_USN_ATTRIBUTE])
- if len(entry):
- message(CHANGE,"Find a last provision USN: %d" % entry[0][LAST_PROVISION_USN_ATTRIBUTE])
- return entry[0][LAST_PROVISION_USN_ATTRIBUTE]
- else:
- return 0
-
-
-
-
-def delta_update_basesamdb(refpaths, paths, creds, session, lp):
- """Update the provision container db: sam.ldb
- This function is aimed for alpha9 and newer;
-
- :param refpaths: An object holding the different importants paths for reference provision object
- :param paths: An object holding the different importants paths for upgraded provision object
- :param creds: Credential used for openning LDB files
- :param session: Session to use for openning LDB files
- :param lp: A loadparam object"""
-
- message(SIMPLE,"Update base samdb by searching difference with reference one")
- refsam = Ldb(refpaths.samdb, session_info=session, credentials=creds, lp=lp, options=["modules:"] )
- sam = Ldb(paths.samdb, session_info=session, credentials=creds, lp=lp, options=["modules:"] )
-
- empty = Message()
-
- reference = refsam.search(expression="")
+def remove_stored_generated_attrs(paths, creds, session, lp):
+ """Remove previously stored constructed attributes
- for refentry in reference:
- entry = sam.search(expression="dn=%s" % refentry["dn"],scope=SCOPE_SUBTREE)
- if not len(entry[0]):
- message(CHANGE,"Adding %s to sam db" % str(delta.dn))
- delta = sam.msg_diff(empty,refentry)
- delta.dn = refentry.dn
- sam.add(delta)
- else:
- delta = sam.msg_diff(entry[0],refentry)
- if refentry.dn == "@PARTITION" and delta.get(LAST_PROVISION_USN_ATTRIBUTE):
- delta.remove(LAST_PROVISION_USN_ATTRIBUTE)
- if len(delta.items()) > 1:
- delta.dn = refentry.dn
- sam.modify(delta)
+ :param paths: List of paths for different provision objects
+ from the upgraded provision
+ :param creds: A credential object
+ :param session: A session object
+ :param lp: A line parser object
+ :return: An associative array whose key are the different constructed
+ attributes and the value the dn where this attributes were found.
+ """
def simple_update_basesamdb(newpaths, paths, names):
"""Update the provision container db: sam.ldb
This function is aimed at very old provision (before alpha9)
- :param newpaths: List of paths for different provision objects from the reference provision
- :param paths: List of paths for different provision objects from the upgraded provision
+ :param newpaths: List of paths for different provision objects
+ from the reference provision
+ :param paths: List of paths for different provision objects
+ from the upgraded provision
:param names: List of key provision parameters"""
message(SIMPLE, "Copy samdb")
- shutil.copy(newpaths.samdb,paths.samdb)
+ shutil.copy(newpaths.samdb, paths.samdb)
message(SIMPLE, "Update partitions filename if needed")
schemaldb = os.path.join(paths.private_dir, "schema.ldb")
if not os.path.isdir(samldbdir):
os.mkdir(samldbdir)
- os.chmod(samldbdir,0700)
+ os.chmod(samldbdir, 0700)
if os.path.isfile(schemaldb):
- shutil.copy(schemaldb, os.path.join(samldbdir, "%s.ldb" % str(names.schemadn).upper()))
+ shutil.copy(schemaldb, os.path.join(samldbdir,
+ "%s.ldb"%str(names.schemadn).upper()))
os.remove(schemaldb)
if os.path.isfile(usersldb):
- shutil.copy(usersldb, os.path.join(samldbdir, "%s.ldb" % str(names.rootdn).upper()))
+ shutil.copy(usersldb, os.path.join(samldbdir,
+ "%s.ldb"%str(names.rootdn).upper()))
os.remove(usersldb)
if os.path.isfile(configldb):
- shutil.copy(configldb, os.path.join(samldbdir, "%s.ldb" % str(names.configdn).upper()))
+ shutil.copy(configldb, os.path.join(samldbdir,
+ "%s.ldb"%str(names.configdn).upper()))
os.remove(configldb)
def update_privilege(ref_private_path, cur_private_path):
"""Update the privilege database
- :param ref_private_path: Path to the private directory of the reference provision.
- :param cur_private_path: Path to the private directory of the current (and to be updated) provision."""
+ :param ref_private_path: Path to the private directory of the reference
+ provision.
+ :param cur_private_path: Path to the private directory of the current
+ (and to be updated) provision."""
message(SIMPLE, "Copy privilege")
shutil.copy(os.path.join(ref_private_path, "privilege.ldb"),
os.path.join(cur_private_path, "privilege.ldb"))
-def update_samdb(ref_samdb, samdb, names, highestUSN):
+def update_samdb(ref_samdb, samdb, names, highestUSN, schema, prereloadfunc):
"""Upgrade the SAM DB contents for all the provision partitions
- :param ref_sambdb: An LDB object conntected to the sam.ldb of the reference provision
- :param samdb: An LDB object connected to the sam.ldb of the update provision
+ :param ref_sambdb: An LDB object conntected to the sam.ldb of the reference
+ provision
+ :param samdb: An LDB object connected to the sam.ldb of the update
+ provision
:param names: List of key provision parameters
- :param highestUSN: The highest USN modified by provision/upgradeprovision last time"""
+ :param highestUSN: The highest USN modified by provision/upgradeprovision
+ last time
+ :param schema: A Schema object that represent the schema of the provision
+ :param prereloadfunc: A function that must be executed just before the reload
+ of the schema
+ """
message(SIMPLE, "Starting update of samdb")
- ret = update_partition(ref_samdb, samdb, str(names.rootdn), names, 1, highestUSN)
+ ret = update_partition(ref_samdb, samdb, str(names.rootdn), names,
+ schema, highestUSN, prereloadfunc)
if ret:
- message(SIMPLE,"Update of samdb finished")
+ message(SIMPLE, "Update of samdb finished")
return 1
else:
- message(SIMPLE,"Update failed")
+ message(SIMPLE, "Update failed")
return 0
-def update_machine_account_password(samdb, secrets_ldb, names):
- """Update (change) the password of the current DC both in the SAM db and in secret one
-
- :param samdb: An LDB object related to the sam.ldb file of a given provision
- :param secrets_ldb: An LDB object related to the secrets.ldb file of a given provision
- :param names: List of key provision parameters"""
-
- message(SIMPLE,"Update machine account")
- secrets_msg = secrets_ldb.search(expression=("samAccountName=%s$" % names.netbiosname), attrs=["secureChannelType"])
- if int(secrets_msg[0]["secureChannelType"][0]) == SEC_CHAN_BDC:
- res = samdb.search(expression=("samAccountName=%s$" % names.netbiosname), attrs=[])
- assert(len(res) == 1)
-
- msg = Message(res[0].dn)
- machinepass = samba.generate_random_password(128, 255)
- msg["userPassword"] = MessageElement(machinepass, FLAG_MOD_REPLACE, "userPassword")
- samdb.modify(msg)
-
- res = samdb.search(expression=("samAccountName=%s$" % names.netbiosname),
- attrs=["msDs-keyVersionNumber"])
- assert(len(res) == 1)
- kvno = int(str(res[0]["msDs-keyVersionNumber"]))
-
- secretsdb_self_join(secrets_ldb, domain=names.domain,
- realm=names.realm or sambaopts._lp.get('realm'),
- domainsid=names.domainsid,
- dnsdomain=names.dnsdomain,
- netbiosname=names.netbiosname,
- machinepass=machinepass,
- key_version_number=kvno,
- secure_channel_type=int(secrets_msg[0]["secureChannelType"][0]))
- else:
- raise ProvisioningError("Unable to find a Secure Channel of type SEC_CHAN_BDC")
-
-
-def update_gpo(paths,creds,session,names):
- """Create missing GPO file object if needed
-
- Set ACL correctly also.
+def copyxattrs(dir, refdir):
+ """ Copy owner, groups, extended ACL and NT acls from
+ a reference dir to a destination dir
+
+ Both dir are supposed to hold the same files
+ :param dir: Destination dir
+ :param refdir: Reference directory"""
+
+ noxattr = 0
+ for root, dirs, files in os.walk(dir, topdown=True):
+ for name in files:
+ subdir=root[len(dir):]
+ ref = os.path.join("%s%s" % (refdir, subdir), name)
+ statsinfo = os.stat(ref)
+ tgt = os.path.join(root, name)
+ try:
+
+ os.chown(tgt, statsinfo.st_uid, statsinfo.st_gid)
+ # Get the xattr attributes if any
+ try:
+ attribute = samba.xattr_native.wrap_getxattr(ref,
+ xattr.XATTR_NTACL_NAME)
+ samba.xattr_native.wrap_setxattr(tgt,
+ xattr.XATTR_NTACL_NAME,
+ attribute)
+ except:
+ noxattr = 1
+ attribute = samba.xattr_native.wrap_getxattr(ref,
+ "system.posix_acl_access")
+ samba.xattr_native.wrap_setxattr(tgt,
+ "system.posix_acl_access",
+ attribute)
+ except:
+ continue
+ for name in dirs:
+ subdir=root[len(dir):]
+ ref = os.path.join("%s%s" % (refdir, subdir), name)
+ statsinfo = os.stat(ref)
+ tgt = os.path.join(root, name)
+ try:
+ os.chown(os.path.join(root, name), statsinfo.st_uid,
+ statsinfo.st_gid)
+ try:
+ attribute = samba.xattr_native.wrap_getxattr(ref,
+ xattr.XATTR_NTACL_NAME)
+ samba.xattr_native.wrap_setxattr(tgt,
+ xattr.XATTR_NTACL_NAME,
+ attribute)
+ except:
+ noxattr = 1
+ attribute = samba.xattr_native.wrap_getxattr(ref,
+ "system.posix_acl_access")
+ samba.xattr_native.wrap_setxattr(tgt,
+ "system.posix_acl_access",
+ attribute)
+
+ except:
+ continue
+
+
+def backup_provision(paths, dir):
+ """This function backup the provision files so that a rollback
+ is possible
+
+ :param paths: Paths to different objects
+ :param dir: Directory where to store the backup
"""
- dir = getpolicypath(paths.sysvol,names.dnsdomain,names.policyid)
- if not os.path.isdir(dir):
- create_gpo_struct(dir)
-
- dir = getpolicypath(paths.sysvol,names.dnsdomain,names.policyid_dc)
- if not os.path.isdir(dir):
- create_gpo_struct(dir)
- samdb = Ldb(paths.samdb, session_info=session, credentials=creds,lp=lp)
- set_gpo_acl(paths.sysvol, names.dnsdomain, names.domainsid,
- names.domaindn, samdb, lp)
-
-
-def getOEMInfo(samdb, rootdn):
- """Return OEM Information on the top level
- Samba4 use to store version info in this field
-
- :param samdb: An LDB object connect to sam.ldb
- :param rootdn: Root DN of the domain
- :return: The content of the field oEMInformation (if any)"""
- res = samdb.search(expression="(objectClass=*)", base=str(rootdn),
- scope=SCOPE_BASE, attrs=["dn", "oEMInformation"])
- if len(res) > 0:
- info = res[0]["oEMInformation"]
- return info
- else:
- return ""
+ shutil.copytree(paths.sysvol, os.path.join(dir, "sysvol"))
+ copyxattrs(os.path.join(dir, "sysvol"), paths.sysvol)
+ shutil.copy2(paths.samdb, dir)
+ shutil.copy2(paths.secrets, dir)
+ shutil.copy2(paths.idmapdb, dir)
+ shutil.copy2(paths.privilege, dir)
+ if os.path.isfile(os.path.join(paths.private_dir,"eadb.tdb")):
+ shutil.copy2(os.path.join(paths.private_dir,"eadb.tdb"), dir)
+ shutil.copy2(paths.smbconf, dir)
+ shutil.copy2(os.path.join(paths.private_dir,"secrets.keytab"), dir)
+ samldbdir = os.path.join(paths.private_dir, "sam.ldb.d")
+ if not os.path.isdir(samldbdir):
+ samldbdir = paths.private_dir
+ schemaldb = os.path.join(paths.private_dir, "schema.ldb")
+ configldb = os.path.join(paths.private_dir, "configuration.ldb")
+ usersldb = os.path.join(paths.private_dir, "users.ldb")
+ shutil.copy2(schemaldb, dir)
+ shutil.copy2(usersldb, dir)
+ shutil.copy2(configldb, dir)
+ else:
+ shutil.copytree(samldbdir, os.path.join(dir, "sam.ldb.d"))
-def updateProvisionUSN(samdb, names):
- """Update the field provisionUSN in sam.ldb
- This field is used to track the highest USN of a modified or created object.
- This value is used afterward by next provision to figure out if the field have been
- modified since last provision.
- :param samdb: An LDB object connect to sam.ldb
- :param names: Key provision parameters"""
- message(SIMPLE,"Updating the highest USN modified by upgrade: This is a stub function")
+def sync_calculated_attributes(samdb, names):
+ """Synchronize attributes used for constructed ones, with the
+ old constructed that were stored in the database.
-def updateOEMInfo(samdb, names):
- res = samdb.search(expression="(objectClass=*)", base=str(names.rootdn),
- scope=SCOPE_BASE, attrs=["dn", "oEMInformation"])
- if len(res) > 0:
- info = res[0]["oEMInformation"]
- info = "%s, upgrade to %s" % (info, version)
- delta = Message()
- delta.dn = Dn(samdb, str(res[0]["dn"]))
- delta["oEMInformation"] = MessageElement(info, FLAG_MOD_REPLACE,
- "oEMInformation" )
- samdb.modify(delta)
+ This apply for instance to msds-keyversionnumber that was
+ stored and that is now constructed from replpropertymetadata.
+ :param samdb: An LDB object attached to the currently upgraded samdb
+ :param names: Various key parameter about current provision.
+ """
+ listAttrs = ["msDs-KeyVersionNumber"]
+ hash = search_constructed_attrs_stored(samdb, names.rootdn, listAttrs)
+ if hash.has_key("msDs-KeyVersionNumber"):
+ increment_calculated_keyversion_number(samdb, names.rootdn,
+ hash["msDs-KeyVersionNumber"])
def setup_path(file):
return os.path.join(setup_dir, file)
+# Synopsis for updateprovision
+# 1) get path related to provision to be update (called current)
+# 2) open current provision ldbs
+# 3) fetch the key provision parameter (domain sid, domain guid, invocationid
+# of the DC ....)
+# 4) research of lastProvisionUSN in order to get ranges of USN modified
+# by either upgradeprovision or provision
+# 5) creation of a new provision the latest version of provision script
+# (called reference)
+# 6) get reference provision paths
+# 7) open reference provision ldbs
+# 8) setup helpers data that will help the update process
+# 9) update the privilege ldb by copying the one of referecence provision to
+# the current provision
+# 10)get the oemInfo field, this field contains information about the different
+# provision that have been done
+# 11)Depending on whether oemInfo has the string "alpha9" or alphaxx (x as an
+# integer) or none of this the following things are done
+# A) When alpha9 or alphaxx is present
+# The base sam.ldb file is updated by looking at the difference between
+# referrence one and the current one. Everything is copied with the
+# exception of lastProvisionUSN attributes.
+# B) Other case (it reflect that that provision was done before alpha9)
+# The base sam.ldb of the reference provision is copied over
+# the current one, if necessary ldb related to partitions are moved
+# and renamed
+# The highest used USN is fetched so that changed by upgradeprovision
+# usn can be tracked
+# 12)A Schema object is created, it will be used to provide a complete
+# schema to current provision during update (as the schema of the
+# current provision might not be complete and so won't allow some
+# object to be created)
+# 13)Proceed to full update of sam DB (see the separate paragraph about i)
+# 14)The secrets db is updated by pull all the difference from the reference
+# provision into the current provision
+# 15)As the previous step has most probably modified the password stored in
+# in secret for the current DC, a new password is generated,
+# the kvno is bumped and the entry in samdb is also updated
+# 16)For current provision older than alpha9, we must fix the SD a little bit
+# administrator to update them because SD used to be generated with the
+# system account before alpha9.
+# 17)The highest usn modified so far is searched in the database it will be
+# the upper limit for usn modified during provision.
+# This is done before potential SD recalculation because we do not want
+# SD modified during recalculation to be marked as modified during provision
+# (and so possibly remplaced at next upgradeprovision)
+# 18)Rebuilt SD if the flag indicate to do so
+# 19)Check difference between SD of reference provision and those of the
+# current provision. The check is done by getting the sddl representation
+# of the SD. Each sddl in chuncked into parts (user,group,dacl,sacl)
+# Each part is verified separetly, for dacl and sacl ACL is splited into
+# ACEs and each ACE is verified separately (so that a permutation in ACE
+# didn't raise as an error).
+# 20)The oemInfo field is updated to add information about the fact that the
+# provision has been updated by the upgradeprovision version xxx
+# (the version is the one obtained when starting samba with the --version
+# parameter)
+# 21)Check if the current provision has all the settings needed for dynamic
+# DNS update to work (that is to say the provision is newer than
+# january 2010). If not dns configuration file from reference provision
+# are copied in a sub folder and the administrator is invited to
+# do what is needed.
+# 22)If the lastProvisionUSN attribute was present it is updated to add
+# the range of usns modified by the current upgradeprovision
+
+
+# About updating the sam DB
+# The update takes place in update_partition function
+# This function read both current and reference provision and list all
+# the available DN of objects
+# If the string representation of a DN in reference provision is
+# equal to the string representation of a DN in current provision
+# (without taking care of case) then the object is flaged as being
+# present. If the object is not present in current provision the object
+# is being flaged as missing in current provision. Object present in current
+# provision but not in reference provision are ignored.
+# Once the list of objects present and missing is done, the deleted object
+# containers are created in the differents partitions (if missing)
+#
+# Then the function add_missing_entries is called
+# This function will go through the list of missing entries by calling
+# add_missing_object for the given object. If this function returns 0
+# it means that the object needs some other object in order to be created
+# The object is reappended at the end of the list to be created later
+# (and preferably after all the needed object have been created)
+# The function keeps on looping on the list of object to be created until
+# it's empty or that the number of defered creation is equal to the number
+# of object that still needs to be created.
+
+# The function add_missing_object will first check if the object can be created.
+# That is to say that it didn't depends other not yet created objects
+# If requisit can't be fullfilled it exists with 0
+# Then it will try to create the missing entry by creating doing
+# an ldb_message_diff between the object in the reference provision and
+# an empty object.
+# This resulting object is filtered to remove all the back link attribute
+# (ie. memberOf) as they will be created by the other linked object (ie.
+# the one with the member attribute)
+# All attributes specified in the hashAttrNotCopied associative array are
+# also removed it's most of the time generated attributes
+
+# After missing entries have been added the update_partition function will
+# take care of object that exist but that need some update.
+# In order to do so the function update_present is called with the list
+# of object that are present in both provision and that might need an update.
+
+# This function handle first case mismatch so that the DN in the current
+# provision have the same case as in reference provision
+
+# It will then construct an associative array consiting of attributes as
+# key and invocationid as value( if the originating invocation id is
+# different from the invocation id of the current DC the value is -1 instead).
+
+# If the range of provision modified attributes is present, the function will
+# use the replMetadataProperty update method which is the following:
+# Removing attributes that should not be updated: rIDAvailablePool, objectSid,
+# creationTime, msDs-KeyVersionNumber, oEMInformation
+# Check for each attribute if its usn is within one of the modified by
+# provision range and if its originating id is the invocation id of the
+# current DC, then validate the update from reference to current.
+# If not or if there is no replMetatdataProperty for this attribute then we
+# do not update it.
+# Otherwise (case the range of provision modified attribute is not present) it
+# use the following process:
+# All attributes that need to be added are accepted at the exeption of those
+# listed in hashOverwrittenAtt, in this case the attribute needs to have the
+# correct flags specified.
+# For attributes that need to be modified or removed, a check is performed
+# in OverwrittenAtt, if the attribute is present and the modification flag
+# (remove, delete) is one of those listed for this attribute then modification
+# is accepted. For complicated handling of attribute update, the control is passed
+# to handle_special_case
+
+
if __name__ == '__main__':
+ global defSDmodified
+ defSDmodified = False
# From here start the big steps of the program
- # First get files paths
+ # 1) First get files paths
paths = get_paths(param, smbconf=smbconf)
paths.setup = setup_dir
- # Get ldbs with the system session, it is needed for searching provision parameters
+ # Get ldbs with the system session, it is needed for searching
+ # provision parameters
session = system_session()
# This variable will hold the last provision USN once if it exists.
- lastProvisionUSN = getLastProvisionUSN(paths, creds, session, lp)
-
+ minUSN = 0
+ # 2)
ldbs = get_ldbs(paths, creds, session, lp)
- ldbs.startTransactions()
-
- # Guess all the needed names (variables in fact) from the current
- # provision.
- names = find_provision_key_parameters(ldbs.sam, ldbs.secrets, paths, smbconf, lp)
-
- # Objects will be created with the admin session (not anymore system session)
- adm_session = admin_session(lp, str(names.domainsid))
- # So we reget handle on objects
- # ldbs = get_ldbs(paths, creds, adm_session, lp)
+ backupdir = tempfile.mkdtemp(dir=paths.private_dir,
+ prefix="backupprovision")
+ backup_provision(paths, backupdir)
+ try:
+ ldbs.startTransactions()
+ # 3) Guess all the needed names (variables in fact) from the current
+ # provision.
+ names = find_provision_key_parameters(ldbs.sam, ldbs.secrets, ldbs.idmap,
+ paths, smbconf, lp)
+ # 4)
+ lastProvisionUSNs = get_last_provision_usn(ldbs.sam)
+ if lastProvisionUSNs is not None:
+ message(CHANGE,
+ "Find a last provision USN, %d range(s)" % len(lastProvisionUSNs))
+
+ # Objects will be created with the admin session
+ # (not anymore system session)
+ adm_session = admin_session(lp, str(names.domainsid))
+ # So we reget handle on objects
+ # ldbs = get_ldbs(paths, creds, adm_session, lp)
+
+ if not sanitychecks(ldbs.sam, names):
+ message(SIMPLE, "Sanity checks for the upgrade fails, checks messages"
+ " and correct them before rerunning upgradeprovision")
+ sys.exit(1)
- if not sanitychecks(ldbs.sam, names):
- message(SIMPLE,"Sanity checks for the upgrade fails, checks messages and correct them before rerunning upgradeprovision")
- sys.exit(1)
+ # Let's see provision parameters
+ print_provision_key_parameters(names)
+
+ # 5) With all this information let's create a fresh new provision used as
+ # reference
+ message(SIMPLE, "Creating a reference provision")
+ provisiondir = tempfile.mkdtemp(dir=paths.private_dir,
+ prefix="referenceprovision")
+ newprovision(names, setup_dir, creds, session, smbconf, provisiondir,
+ provision_logger)
+
+ # TODO
+ # 6) and 7)
+ # We need to get a list of object which SD is directly computed from
+ # defaultSecurityDescriptor.
+ # This will allow us to know which object we can rebuild the SD in case
+ # of change of the parent's SD or of the defaultSD.
+ # Get file paths of this new provision
+ newpaths = get_paths(param, targetdir=provisiondir)
+ new_ldbs = get_ldbs(newpaths, creds, session, lp)
+ new_ldbs.startTransactions()
- # Let's see provision parameters
- print_provision_key_parameters(names)
-
- # With all this information let's create a fresh new provision used as reference
- message(SIMPLE, "Creating a reference provision")
- provisiondir = tempfile.mkdtemp(dir=paths.private_dir,
- prefix="referenceprovision")
- newprovision(names, setup_dir, creds, session, smbconf, provisiondir,
- provision_logger)
-
- # TODO
- # We need to get a list of object which SD is directly computed from
- # defaultSecurityDescriptor.
- # This will allow us to know which object we can rebuild the SD in case
- # of change of the parent's SD or of the defaultSD.
- # Get file paths of this new provision
- newpaths = get_paths(param, targetdir=provisiondir)
- new_ldbs = get_ldbs(newpaths, creds, session, lp)
- new_ldbs.startTransactions()
-
- # Populate some associative array to ease the update process
- populate_backlink(new_ldbs.sam, names.schemadn) # List of attribute which are backlink
- populate_dnsyntax(new_ldbs.sam, names.schemadn) # List of attribute with ASN DN synthax)
-
- update_privilege(newpaths.private_dir,paths.private_dir)
- oem = getOEMInfo(ldbs.sam, names.rootdn)
- # Do some modification on sam.ldb
- ldbs.groupedCommit()
- if re.match(".*alpha((9)|(\d\d+)).*",str(oem)):
- # Starting from alpha9 we can consider that the structure is quite ok and that we should do only dela
+ # 8) Populate some associative array to ease the update process
+ # List of attribute which are link and backlink
+ populate_links(new_ldbs.sam, names.schemadn)
+ # List of attribute with ASN DN synthax)
+ populate_dnsyntax(new_ldbs.sam, names.schemadn)
+ # 9)
+ update_privilege(newpaths.private_dir, paths.private_dir)
+ # 10)
+ oem = getOEMInfo(ldbs.sam, str(names.rootdn))
+ # Do some modification on sam.ldb
+ ldbs.groupedCommit()
new_ldbs.groupedCommit()
- delta_update_basesamdb(newpaths, paths, creds, session, lp)
+ deltaattr = None
+# 11)
+ if re.match(".*alpha((9)|(\d\d+)).*", str(oem)):
+ # 11) A
+ # Starting from alpha9 we can consider that the structure is quite ok
+ # and that we should do only dela
+ deltaattr = delta_update_basesamdb(newpaths.samdb,
+ paths.samdb,
+ creds,
+ session,
+ lp,
+ message)
+ else:
+ # 11) B
+ simple_update_basesamdb(newpaths, paths, names)
+ ldbs = get_ldbs(paths, creds, session, lp)
+ removeProvisionUSN(ldbs.sam)
+
ldbs.startTransactions()
+ minUSN = int(str(get_max_usn(ldbs.sam, str(names.rootdn)))) + 1
new_ldbs.startTransactions()
- else:
- simple_update_basesamdb(newpaths, paths, names)
- ldbs = get_ldbs(paths, creds, session, lp)
- ldbs.startTransactions()
- if opts.full:
- if not update_samdb(new_ldbs.sam, ldbs.sam, names, lastProvisionUSN):
- message(SIMPLE,"Rollbacking every changes. Check the reason of the problem")
- message(SIMPLE,"In any case your system as it was before the upgrade")
- ldbs.groupedRollback()
- new_ldbs.groupedRollback()
- shutil.rmtree(provisiondir)
- sys.exit(1)
-
- update_secrets(new_ldbs.secrets,ldbs.secrets)
- update_machine_account_password(ldbs.sam,ldbs.secrets, names)
-
- # SD should be created with admin but as some previous acl were so wrong that admin can't modify them we have first
- # to recreate them with the good form but with system account and then give the ownership to admin ...
- message(SIMPLE, "Updating SD")
- if not re.match(r'alpha(9|\d\d+)',str(oem)):
- rebuild_sd(ldbs.sam,names)
-
- # We rebuild SD only when we do not have a lastProvisionUSN because otherwise SD have been already updated if needed
- if lastProvisionUSN == 0:
- ldbs.sam.set_session_info(adm_session)
- rebuild_sd(ldbs.sam, names)
- check_updated_sd(new_ldbs.sam,ldbs.sam, names)
-
- updateOEMInfo(ldbs.sam,names)
- updateProvisionUSN(ldbs.sam,names)
- ldbs.groupedCommit()
- new_ldbs.groupedCommit()
- message(SIMPLE, "Upgrade finished !")
- # remove reference provision now that everything is done !
- shutil.rmtree(provisiondir)
+ # 12)
+ schema = Schema(setup_path, names.domainsid, schemadn=str(names.schemadn),
+ serverdn=str(names.serverdn))
+ # We create a closure that will be invoked just before schema reload
+ def schemareloadclosure():
+ basesam = Ldb(paths.samdb, session_info=session, credentials=creds, lp=lp,
+ options=["modules:"])
+ doit = False
+ if deltaattr is not None and len(deltaattr) > 1:
+ doit = True
+ if doit:
+ deltaattr.remove("dn")
+ for att in deltaattr:
+ if att.lower() == "dn":
+ continue
+ if deltaattr.get(att) is not None \
+ and deltaattr.get(att).flags() != FLAG_MOD_ADD:
+ doit = False
+ elif deltaattr.get(att) is None:
+ doit = False
+ if doit:
+ message(CHANGE, "Applying delta to @ATTRIBUTES")
+ deltaattr.dn = ldb.Dn(basesam, "@ATTRIBUTES")
+ basesam.modify(deltaattr)
+ else:
+ message(CHANGE, "Not applying delta to @ATTRIBUTES because "\
+ "there is not only add")
+ # 13)
+ if opts.full:
+ if not update_samdb(new_ldbs.sam, ldbs.sam, names, lastProvisionUSNs,
+ schema, schemareloadclosure):
+ message(SIMPLE, "Rollbacking every changes. Check the reason"
+ " of the problem")
+ message(SIMPLE, "In any case your system as it was before"
+ " the upgrade")
+ ldbs.groupedRollback()
+ new_ldbs.groupedRollback()
+ shutil.rmtree(provisiondir)
+ sys.exit(1)
+ else:
+ # Try to reapply the change also when we do not change the sam
+ # as the delta_upgrade
+ schemareloadclosure()
+ sync_calculated_attributes(ldbs.sam, names)
+ # 14)
+ update_secrets(new_ldbs.secrets, ldbs.secrets, message)
+ # 15)
+ message(SIMPLE, "Update machine account")
+ update_machine_account_password(ldbs.sam, ldbs.secrets, names)
+
+ # 16) SD should be created with admin but as some previous acl were so wrong
+ # that admin can't modify them we have first to recreate them with the good
+ # form but with system account and then give the ownership to admin ...
+ if not re.match(r'.*alpha(9|\d\d+)', str(oem)):
+ message(SIMPLE, "Fixing old povision SD")
+ fix_partition_sd(ldbs.sam, names)
+ rebuild_sd(ldbs.sam, names)
+
+ # We calculate the max USN before recalculating the SD because we might
+ # touch object that have been modified after a provision and we do not
+ # want that the next upgradeprovision thinks that it has a green light
+ # to modify them
+
+ # 17)
+ maxUSN = get_max_usn(ldbs.sam, str(names.rootdn))
+
+ # 18) We rebuild SD only if defaultSecurityDescriptor is modified
+ # But in fact we should do it also if one object has its SD modified as
+ # child might need rebuild
+ if defSDmodified:
+ message(SIMPLE, "Updating SD")
+ ldbs.sam.set_session_info(adm_session)
+ # Alpha10 was a bit broken still
+ if re.match(r'.*alpha(\d|10)', str(oem)):
+ fix_partition_sd(ldbs.sam, names)
+ rebuild_sd(ldbs.sam, names)
+
+ # 19)
+ # Now we are quite confident in the recalculate process of the SD, we make
+ # it optional.
+ # Also the check must be done in a clever way as for the moment we just
+ # compare SDDL
+ if opts.debugchangesd:
+ check_updated_sd(new_ldbs.sam, ldbs.sam, names)
+
+ # 20)
+ updateOEMInfo(ldbs.sam, str(names.rootdn))
+ # 21)
+ check_for_DNS(newpaths.private_dir, paths.private_dir)
+ # 22)
+ if lastProvisionUSNs is not None:
+ update_provision_usn(ldbs.sam, minUSN, maxUSN)
+ if opts.full and (names.policyid is None or names.policyid_dc is None):
+ update_policyids(names, ldbs.sam)
+ if opts.full or opts.resetfileacl:
+ try:
+ update_gpo(paths, ldbs.sam, names, lp, message, 1)
+ except ProvisioningError, e:
+ message(ERROR, "The policy for domain controller is missing,"
+ " you should restart upgradeprovision with --full")
+ except IOError, e:
+ message(ERROR, "Setting ACL not supported on your filesystem")
+ else:
+ try:
+ update_gpo(paths, ldbs.sam, names, lp, message, 0)
+ except ProvisioningError, e:
+ message(ERROR, "The policy for domain controller is missing,"
+ " you should restart upgradeprovision with --full")
+ ldbs.groupedCommit()
+ new_ldbs.groupedCommit()
+ message(SIMPLE, "Upgrade finished !")
+ # remove reference provision now that everything is done !
+ # So we have reindexed first if need when the merged schema was reloaded
+ # (as new attributes could have quick in)
+ # But the second part of the update (when we update existing objects
+ # can also have an influence on indexing as some attribute might have their
+ # searchflag modificated
+ message(SIMPLE, "Reopenning samdb to trigger reindexing if needed after"\
+ " modification")
+ samdb = Ldb(paths.samdb, session_info=session, credentials=creds, lp=lp)
+ message(SIMPLE, "Reindexing finished")
+
+ shutil.rmtree(provisiondir)
+ except StandardError, err:
+ message(ERROR,"A problem has occured when trying to upgrade your provision,"
+ " a full backup is located at %s" % backupdir)
+ if opts.debugall or opts.debugchange:
+ (typ, val, tb) = sys.exc_info()
+ traceback.print_exception(typ, val, tb)
+ sys.exit(1)
git.samba.org / samba.git / blobdiff