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This script allows the DB to be read, and re-indexed, by an earlier Samba version, most likely 4.7 with some backported patches. Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Garming Sam <garming@catalyst.net.nz> Autobuild-User(master): Andrew Bartlett <abartlet@samba.org> Autobuild-Date(master): Sat Sep 23 09:16:31 CEST 2017 on sn-devel-144
85 lines
2.0 KiB
Python
Executable File
85 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python
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import optparse
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import sys
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# Find right directory when running from source tree
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sys.path.insert(0, "bin/python")
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import samba
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import ldb
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import urllib
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import os
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from samba import getopt as options
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from samba.samdb import SamDB
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from samba.dbchecker import dbcheck
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from samba.credentials import Credentials
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parser = optparse.OptionParser("sambaundoguididx")
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sambaopts = options.SambaOptions(parser)
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parser.add_option_group(options.VersionOptions(parser))
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parser.add_option("-H", "--URL", help="LDB URL for database",
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type=str, metavar="URL", dest="H")
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opts, args = parser.parse_args()
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if len(args) != 0:
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parser.print_usage()
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sys.exit(1)
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lp_ctx = sambaopts.get_loadparm()
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lp_ctx.set("dsdb:guid index", "false")
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if opts.H is None:
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url = lp_ctx.samdb_url()
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else:
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url = opts.H
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samdb = ldb.Ldb(url=url, options=["modules:"])
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partitions = samdb.search(base="@PARTITION",
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scope=ldb.SCOPE_BASE,
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attrs=["partition"])
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modmsg = ldb.Message()
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modmsg.dn = ldb.Dn(samdb, '@INDEXLIST')
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modmsg.add(ldb.MessageElement(
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elements=[],
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flags=ldb.FLAG_MOD_REPLACE,
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name='@IDXGUID'))
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modmsg.add(ldb.MessageElement(
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elements=[],
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flags=ldb.FLAG_MOD_REPLACE,
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name='@IDX_DN_GUID'))
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samdb.transaction_start()
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samdb.modify(modmsg)
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privatedir = os.path.dirname(url)
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dbs = []
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for part in partitions[0]['partition']:
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file_quoted = part.split(":")[1]
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tdbname = urllib.unquote(file_quoted)
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tdbpath = os.path.join(privatedir, tdbname)
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db = ldb.Ldb(url=tdbpath, options=["modules:"])
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db.transaction_start()
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db.modify(modmsg)
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dbs.append(db)
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for db in dbs:
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db.transaction_commit()
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samdb.transaction_commit()
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print "Re-opening with the full DB stack"
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samdb = SamDB(url=url,
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lp=lp_ctx)
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print "Re-triggering another re-index"
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chk = dbcheck(samdb)
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chk.reindex_database()
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print "Your database has been downgraded to DN-based index values."
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print "NOTE: Any use of a Samba 4.8 tool including ldbsearch will auto-upgrade back to GUID index mode"
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