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-rwxr-xr-xsource4/scripting/devel/pfm_verify.py192
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diff --git a/source4/scripting/devel/pfm_verify.py b/source4/scripting/devel/pfm_verify.py
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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# script to verify cached prefixMap on remote
+# server against the prefixMap stored in Schema NC
+#
+# Copyright (C) Kamen Mazdrashki <kamenim@samba.org> 2010
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import os
+import sys
+from optparse import OptionParser
+
+sys.path.insert(0, "bin/python")
+
+import samba
+import samba.getopt as options
+from ldb import SCOPE_BASE, SCOPE_SUBTREE
+from samba.dcerpc import drsuapi, misc, drsblobs
+from samba.drs_utils import drs_DsBind
+from samba.samdb import SamDB
+from samba.auth import system_session
+from samba.ndr import ndr_pack, ndr_unpack
+
+
+def _samdb_fetch_pfm(samdb):
+ """Fetch prefixMap stored in SamDB using LDB connection"""
+ res = samdb.search(base=samdb.get_schema_basedn(), expression="", scope=SCOPE_BASE, attrs=["*"])
+ assert len(res) == 1
+ pfm = ndr_unpack(drsblobs.prefixMapBlob,
+ str(res[0]['prefixMap']))
+
+ pfm_schi = _samdb_fetch_schi(samdb)
+
+ return (pfm.ctr, pfm_schi)
+
+
+def _samdb_fetch_schi(samdb):
+ """Fetch schemaInfo stored in SamDB using LDB connection"""
+ res = samdb.search(base=samdb.get_schema_basedn(), expression="", scope=SCOPE_BASE, attrs=["*"])
+ assert len(res) == 1
+ if 'schemaInfo' in res[0]:
+ pfm_schi = ndr_unpack(drsblobs.schemaInfoBlob,
+ str(res[0]['schemaInfo']))
+ else:
+ pfm_schi = drsblobs.schemaInfoBlob()
+ pfm_schi.marker = 0xFF
+ return pfm_schi
+
+
+def _drs_fetch_pfm(server, samdb, creds, lp):
+ """Fetch prefixMap using DRS interface"""
+ binding_str = "ncacn_ip_tcp:%s[print,seal]" % server
+
+ drs = drsuapi.drsuapi(binding_str, lp, creds)
+ (drs_handle, supported_extensions) = drs_DsBind(drs)
+ print("DRS Handle: %s" % drs_handle)
+
+ req8 = drsuapi.DsGetNCChangesRequest8()
+
+ dest_dsa = misc.GUID("9c637462-5b8c-4467-aef2-bdb1f57bc4ef")
+ replica_flags = 0
+
+ req8.destination_dsa_guid = dest_dsa
+ req8.source_dsa_invocation_id = misc.GUID(samdb.get_invocation_id())
+ req8.naming_context = drsuapi.DsReplicaObjectIdentifier()
+ req8.naming_context.dn = samdb.get_schema_basedn()
+ req8.highwatermark = drsuapi.DsReplicaHighWaterMark()
+ req8.highwatermark.tmp_highest_usn = 0
+ req8.highwatermark.reserved_usn = 0
+ req8.highwatermark.highest_usn = 0
+ req8.uptodateness_vector = None
+ req8.replica_flags = replica_flags
+ req8.max_object_count = 0
+ req8.max_ndr_size = 402116
+ req8.extended_op = 0
+ req8.fsmo_info = 0
+ req8.partial_attribute_set = None
+ req8.partial_attribute_set_ex = None
+ req8.mapping_ctr.num_mappings = 0
+ req8.mapping_ctr.mappings = None
+
+ (level, ctr) = drs.DsGetNCChanges(drs_handle, 8, req8)
+ pfm = ctr.mapping_ctr
+ # check for schemaInfo element
+ pfm_it = pfm.mappings[-1]
+ assert pfm_it.id_prefix == 0
+ assert pfm_it.oid.length == 21
+ s = "".join(chr(x) for x in pfm_it.oid.binary_oid)
+ pfm_schi = ndr_unpack(drsblobs.schemaInfoBlob, s)
+ assert pfm_schi.marker == 0xFF
+ # remove schemaInfo element
+ pfm.num_mappings -= 1
+ return (pfm, pfm_schi)
+
+
+def _pfm_verify(drs_pfm, ldb_pfm):
+ errors = []
+ if drs_pfm.num_mappings != ldb_pfm.num_mappings:
+ errors.append("Different count of prefixes: drs = %d, ldb = %d"
+ % (drs_pfm.num_mappings, ldb_pfm.num_mappings))
+ count = min(drs_pfm.num_mappings, ldb_pfm.num_mappings)
+ for i in range(0, count):
+ it_err = []
+ drs_it = drs_pfm.mappings[i]
+ ldb_it = ldb_pfm.mappings[i]
+ if drs_it.id_prefix != ldb_it.id_prefix:
+ it_err.append("id_prefix")
+ if drs_it.oid.length != ldb_it.oid.length:
+ it_err.append("oid.length")
+ if drs_it.oid.binary_oid != ldb_it.oid.binary_oid:
+ it_err.append("oid.binary_oid")
+ if len(it_err):
+ errors.append("[%2d] differences in (%s)" % (i, it_err))
+ return errors
+
+
+def _pfm_schi_verify(drs_schi, ldb_schi):
+ errors = []
+ print(drs_schi.revision)
+ print(drs_schi.invocation_id)
+ if drs_schi.marker != ldb_schi.marker:
+ errors.append("Different marker in schemaInfo: drs = %d, ldb = %d"
+ % (drs_schi.marker, ldb_schi.marker))
+ if drs_schi.revision != ldb_schi.revision:
+ errors.append("Different revision in schemaInfo: drs = %d, ldb = %d"
+ % (drs_schi.revision, ldb_schi.revision))
+ if drs_schi.invocation_id != ldb_schi.invocation_id:
+ errors.append("Different invocation_id in schemaInfo: drs = %s, ldb = %s"
+ % (drs_schi.invocation_id, ldb_schi.invocation_id))
+ return errors
+
+
+########### main code ###########
+if __name__ == "__main__":
+ # command line parsing
+ parser = OptionParser("pfm_verify.py [options] server")
+ sambaopts = options.SambaOptions(parser)
+ parser.add_option_group(sambaopts)
+ credopts = options.CredentialsOptionsDouble(parser)
+ parser.add_option_group(credopts)
+
+ (opts, args) = parser.parse_args()
+
+ lp = sambaopts.get_loadparm()
+ creds = credopts.get_credentials(lp)
+
+ if len(args) != 1:
+ if "DC_SERVER" not in os.environ.keys():
+ parser.error("You must supply a server")
+ args.append(os.environ["DC_SERVER"])
+
+ if creds.is_anonymous():
+ parser.error("You must supply credentials")
+
+ server = args[0]
+
+ samdb = SamDB(url="ldap://%s" % server,
+ session_info=system_session(lp),
+ credentials=creds, lp=lp)
+
+ exit_code = 0
+ (drs_pfm, drs_schi) = _drs_fetch_pfm(server, samdb, creds, lp)
+ (ldb_pfm, ldb_schi) = _samdb_fetch_pfm(samdb)
+ # verify prefixMaps
+ errors = _pfm_verify(drs_pfm, ldb_pfm)
+ if len(errors):
+ print("prefixMap verification errors:")
+ print("%s" % errors)
+ exit_code = 1
+ # verify schemaInfos
+ errors = _pfm_schi_verify(drs_schi, ldb_schi)
+ if len(errors):
+ print("schemaInfo verification errors:")
+ print("%s" % errors)
+ exit_code = 2
+
+ if exit_code != 0:
+ sys.exit(exit_code)