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s4-python: Add python wrapper for xattr_tdb format xattr storage

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This uses the format used by the vfs_xattr_tdb module.  The s4
posix:eadb format is kept, just in a new file and module.

Andrew Bartlett
This commit is contained in:
Andrew Bartlett
2012-04-16 18:59:34 +10:00
parent 44b6bf9130
commit 628a24172f
4 changed files with 208 additions and 34 deletions
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36
source4/scripting/python/samba/ntacls.py
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@ -20,7 +20,7 @@
import os
import samba.xattr_native, samba.xattr_tdb
import samba.xattr_native, samba.xattr_tdb, samba.posix_eadb
from samba.dcerpc import security, xattr
from samba.ndr import ndr_pack, ndr_unpack
@ -31,28 +31,38 @@ class XattrBackendError(Exception):
def checkset_backend(lp, backend, eadbfile):
'''return the path to the eadb, or None'''
if backend is None:
return lp.get("posix:eadb")
xattr_tdb = lp.get("xattr_tdb:file")
if xattr_tdb is not None:
return (samba.xattr_tdb, lp.get("xattr_tdb:file"))
posix_eadb = lp.get("posix:eadb")
if posix_eadb is not None:
return (samba.posix_eadb, lp.get("posix:eadb"))
elif backend == "native":
return None
return (None, None)
elif backend == "eadb":
if eadbfile is not None:
return (samba.posix_eadb, eadbfile)
else:
return (samba.posix_eadb, os.path.abspath(os.path.join(lp.get("private dir"), "eadb.tdb")))
elif backend == "tdb":
if eadbfile is not None:
return eadbfile
return (samba.xattr_tdb, eadbfile)
else:
return os.path.abspath(os.path.join(lp.get("private dir"), "eadb.tdb"))
return (samba.xattr_tdb, os.path.abspath(os.path.join(lp.get("state dir"), "xattr.tdb")))
else:
raise XattrBackendError("Invalid xattr backend choice %s"%backend)
def getntacl(lp, file, backend=None, eadbfile=None):
eadbname = checkset_backend(lp, backend, eadbfile)
if eadbname is not None:
(backend_obj, dbname) = checkset_backend(lp, backend, eadbfile)
if dbname is not None:
try:
attribute = samba.xattr_tdb.wrap_getxattr(eadbname, file,
attribute = backend_obj.wrap_getxattr(dbname, file,
xattr.XATTR_NTACL_NAME)
except Exception:
# FIXME: Don't catch all exceptions, just those related to opening
# xattrdb
print "Fail to open %s" % eadbname
print "Fail to open %s" % dbname
attribute = samba.xattr_native.wrap_getxattr(file,
xattr.XATTR_NTACL_NAME)
else:
@ -63,20 +73,20 @@ def getntacl(lp, file, backend=None, eadbfile=None):
def setntacl(lp, file, sddl, domsid, backend=None, eadbfile=None):
eadbname = checkset_backend(lp, backend, eadbfile)
(backend_obj, dbname) = checkset_backend(lp, backend, eadbfile)
ntacl = xattr.NTACL()
ntacl.version = 1
sid = security.dom_sid(domsid)
sd = security.descriptor.from_sddl(sddl, sid)
ntacl.info = sd
if eadbname is not None:
if dbname is not None:
try:
samba.xattr_tdb.wrap_setxattr(eadbname,
backend_obj.wrap_setxattr(dbname,
file, xattr.XATTR_NTACL_NAME, ndr_pack(ntacl))
except Exception:
# FIXME: Don't catch all exceptions, just those related to opening
# xattrdb
print "Fail to open %s" % eadbname
print "Fail to open %s" % dbname
samba.xattr_native.wrap_setxattr(file, xattr.XATTR_NTACL_NAME,
ndr_pack(ntacl))
else: