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netcmd: domain backup offline command

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Unlike the existing 'domain backup online' command, this command allows an
admin to back up a local samba installation using the filesystem and the
tdbbackup tool instead of using remote protocols.  It replaces samba_backup
as that tool does not handle sam.ldb and secrets.ldb correctly.  Those two
databases need to have transactions started on them before their downstream
ldb and tdb files are backed up.

Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This commit is contained in:
Aaron Haslett
2018-06-26 13:47:42 +12:00
committed by Gary Lockyer
parent 4f532cc177
commit f17d20123a
5 changed files with 247 additions and 110 deletions
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12
python/samba/tdb_util.py
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@ -22,7 +22,7 @@ import samba
import subprocess
import os
def tdb_copy(file1, file2):
def tdb_copy(file1, file2, readonly=False):
"""Copy tdb file using tdbbackup utility and rename it
"""
# Find the location of tdbbackup tool
@ -33,9 +33,9 @@ def tdb_copy(file1, file2):
break
tdbbackup_cmd = [toolpath, "-s", ".copy.tdb", file1]
status = subprocess.call(tdbbackup_cmd, close_fds=True, shell=False)
if readonly:
tdbbackup_cmd.append("-r")
if status == 0:
os.rename("%s.copy.tdb" % file1, file2)
else:
raise Exception("Error copying %s" % file1)
status = subprocess.check_call(tdbbackup_cmd, close_fds=True, shell=False)
os.rename("%s.copy.tdb" % file1, file2)