#
import os
-import tdb
import samba.xattr_native, samba.xattr_tdb
from samba.dcerpc import security, xattr
from samba.ndr import ndr_pack, ndr_unpack
+
class XattrBackendError(Exception):
"""A generic xattr backend error."""
def checkset_backend(lp,backend,eadbfile):
- if backend != None:
- if backend == "native":
- lp.set("posix:eadb","")
- elif backend == "tdb":
- if eadbfile != None:
- lp.set("posix:eadb",eadbfile)
- else:
- os.path.abspath(os.path.join(lp.get("private dir"),"eadb.tdb"))
- else:
- raise XattrBackendError("Unvalid xattr backend choice %s"%backend)
+ if backend is not None:
+ if backend == "native":
+ lp.set("posix:eadb","")
+ elif backend == "tdb":
+ if eadbfile != None:
+ lp.set("posix:eadb",eadbfile)
+ else:
+ os.path.abspath(os.path.join(lp.get("private dir"),"eadb.tdb"))
+ else:
+ raise XattrBackendError("Unvalid xattr backend choice %s"%backend)
-def getntacl(lp,file,backend=None,eadbfile=None):
- try:
- checkset_backend(lp,backend,eadbfile)
- except:
- raise
- eadbname = lp.get("posix:eadb")
- if eadbname != None and eadbname != "" :
- try:
- attribute = samba.xattr_tdb.wrap_getxattr(eadbname,file,xattr.XATTR_NTACL_NAME)
- except:
- print "Fail to open %s"%eadbname
- attribute = samba.xattr_native.wrap_getxattr(file,xattr.XATTR_NTACL_NAME)
- else:
- attribute = samba.xattr_native.wrap_getxattr(file,xattr.XATTR_NTACL_NAME)
- ntacl = ndr_unpack(xattr.NTACL,attribute)
- return ntacl
+def getntacl(lp, file, backend=None, eadbfile=None):
+ checkset_backend(lp, backend, eadbfile)
+ eadbname = lp.get("posix:eadb")
+ if eadbname != None and eadbname != "" :
+ try:
+ attribute = samba.xattr_tdb.wrap_getxattr(eadbname,file,xattr.XATTR_NTACL_NAME)
+ except:
+ print "Fail to open %s" % eadbname
+ attribute = samba.xattr_native.wrap_getxattr(file,xattr.XATTR_NTACL_NAME)
+ else:
+ attribute = samba.xattr_native.wrap_getxattr(file,xattr.XATTR_NTACL_NAME)
+ ntacl = ndr_unpack(xattr.NTACL,attribute)
+ return ntacl
def setntacl(lp,file,sddl,domsid,backend=None,eadbfile=None):
- try:
- checkset_backend(lp,backend,eadbfile)
- except:
- raise
- ntacl=xattr.NTACL()
- ntacl.version = 1
- sid=security.dom_sid(domsid)
- sd = security.descriptor.from_sddl(sddl, sid)
- ntacl.info = sd
- eadbname = lp.get("posix:eadb")
- if eadbname != None and eadbname != "":
- try:
- attribute = samba.xattr_tdb.wrap_setxattr(eadbname,file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl))
- except:
- print "Fail to open %s"%eadbname
- attribute = samba.xattr_native.wrap_setxattr(file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl))
- else:
- attribute = samba.xattr_native.wrap_setxattr(file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl))
+ 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
+ eadbname = lp.get("posix:eadb")
+ if eadbname != None and eadbname != "":
+ try:
+ attribute = samba.xattr_tdb.wrap_setxattr(eadbname,file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl))
+ except:
+ print "Fail to open %s"%eadbname
+ attribute = samba.xattr_native.wrap_setxattr(file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl))
+ else:
+ attribute = samba.xattr_native.wrap_setxattr(file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl))
-# Takes the access mask of a DS ACE and transform them in a File ACE mask
def ldapmask2filemask(ldm):
- RIGHT_DS_CREATE_CHILD = 0x00000001
- RIGHT_DS_DELETE_CHILD = 0x00000002
- RIGHT_DS_LIST_CONTENTS = 0x00000004
- ACTRL_DS_SELF = 0x00000008
- RIGHT_DS_READ_PROPERTY = 0x00000010
- RIGHT_DS_WRITE_PROPERTY = 0x00000020
- RIGHT_DS_DELETE_TREE = 0x00000040
- RIGHT_DS_LIST_OBJECT = 0x00000080
- RIGHT_DS_CONTROL_ACCESS = 0x00000100
- FILE_READ_DATA = 0x0001
- FILE_LIST_DIRECTORY = 0x0001
- FILE_WRITE_DATA = 0x0002
- FILE_ADD_FILE = 0x0002
- FILE_APPEND_DATA = 0x0004
- FILE_ADD_SUBDIRECTORY = 0x0004
- FILE_CREATE_PIPE_INSTANCE = 0x0004
- FILE_READ_EA = 0x0008
- FILE_WRITE_EA = 0x0010
- FILE_EXECUTE = 0x0020
- FILE_TRAVERSE = 0x0020
- FILE_DELETE_CHILD = 0x0040
- FILE_READ_ATTRIBUTES = 0x0080
- FILE_WRITE_ATTRIBUTES = 0x0100
- DELETE = 0x00010000
- READ_CONTROL = 0x00020000
- WRITE_DAC = 0x00040000
- WRITE_OWNER = 0x00080000
- SYNCHRONIZE = 0x00100000
- STANDARD_RIGHTS_ALL = 0x001F0000
-
- filemask = ldm & STANDARD_RIGHTS_ALL
- #filemask = 0
+ """Takes the access mask of a DS ACE and transform them in a File ACE mask"""
+ RIGHT_DS_CREATE_CHILD = 0x00000001
+ RIGHT_DS_DELETE_CHILD = 0x00000002
+ RIGHT_DS_LIST_CONTENTS = 0x00000004
+ ACTRL_DS_SELF = 0x00000008
+ RIGHT_DS_READ_PROPERTY = 0x00000010
+ RIGHT_DS_WRITE_PROPERTY = 0x00000020
+ RIGHT_DS_DELETE_TREE = 0x00000040
+ RIGHT_DS_LIST_OBJECT = 0x00000080
+ RIGHT_DS_CONTROL_ACCESS = 0x00000100
+ FILE_READ_DATA = 0x0001
+ FILE_LIST_DIRECTORY = 0x0001
+ FILE_WRITE_DATA = 0x0002
+ FILE_ADD_FILE = 0x0002
+ FILE_APPEND_DATA = 0x0004
+ FILE_ADD_SUBDIRECTORY = 0x0004
+ FILE_CREATE_PIPE_INSTANCE = 0x0004
+ FILE_READ_EA = 0x0008
+ FILE_WRITE_EA = 0x0010
+ FILE_EXECUTE = 0x0020
+ FILE_TRAVERSE = 0x0020
+ FILE_DELETE_CHILD = 0x0040
+ FILE_READ_ATTRIBUTES = 0x0080
+ FILE_WRITE_ATTRIBUTES = 0x0100
+ DELETE = 0x00010000
+ READ_CONTROL = 0x00020000
+ WRITE_DAC = 0x00040000
+ WRITE_OWNER = 0x00080000
+ SYNCHRONIZE = 0x00100000
+ STANDARD_RIGHTS_ALL = 0x001F0000
- if( (ldm & RIGHT_DS_READ_PROPERTY) and (ldm & RIGHT_DS_LIST_CONTENTS) ):
- filemask = filemask | (SYNCHRONIZE | FILE_LIST_DIRECTORY |\
- FILE_READ_ATTRIBUTES | FILE_READ_EA |\
- FILE_READ_DATA | FILE_EXECUTE)
+ filemask = ldm & STANDARD_RIGHTS_ALL
- if( (ldm & RIGHT_DS_WRITE_PROPERTY) ):
- filemask = filemask | (SYNCHRONIZE | FILE_WRITE_DATA |\
- FILE_APPEND_DATA | FILE_WRITE_EA |\
- FILE_WRITE_ATTRIBUTES | FILE_ADD_FILE |\
- FILE_ADD_SUBDIRECTORY)
+ if (ldm & RIGHT_DS_READ_PROPERTY) and (ldm & RIGHT_DS_LIST_CONTENTS):
+ filemask = filemask | (SYNCHRONIZE | FILE_LIST_DIRECTORY |\
+ FILE_READ_ATTRIBUTES | FILE_READ_EA |\
+ FILE_READ_DATA | FILE_EXECUTE)
- if( (ldm & RIGHT_DS_CREATE_CHILD) ):
- filemask = filemask | (FILE_ADD_SUBDIRECTORY | FILE_ADD_FILE)
+ if ldm & RIGHT_DS_WRITE_PROPERTY:
+ filemask = filemask | (SYNCHRONIZE | FILE_WRITE_DATA |\
+ FILE_APPEND_DATA | FILE_WRITE_EA |\
+ FILE_WRITE_ATTRIBUTES | FILE_ADD_FILE |\
+ FILE_ADD_SUBDIRECTORY)
- if( (ldm & RIGHT_DS_DELETE_CHILD) ):
- filemask = filemask | FILE_DELETE_CHILD
+ if ldm & RIGHT_DS_CREATE_CHILD:
+ filemask = filemask | (FILE_ADD_SUBDIRECTORY | FILE_ADD_FILE)
- return filemask
+ if ldm & RIGHT_DS_DELETE_CHILD:
+ filemask = filemask | FILE_DELETE_CHILD
-# This function takes an the SDDL representation of a DS
-# ACL and return the SDDL representation of this ACL adapted
-# for files. It's used for Policy object provision
+ return filemask
-def dsacl2fsacl(dssddl,domsid):
- sid = security.dom_sid(domsid)
- ref = security.descriptor.from_sddl(dssddl,sid)
- fdescr = security.descriptor()
- fdescr.owner_sid = ref.owner_sid
- fdescr.group_sid = ref.group_sid
- fdescr.type = ref.type
- fdescr.revision = ref.revision
- fdescr.sacl = ref.sacl
- aces = ref.dacl.aces
- for i in range(0,len(aces)):
- ace = aces[i]
- if not ace.type & security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT and str(ace.trustee) != security.SID_BUILTIN_PREW2K:
- # if fdescr.type & security.SEC_DESC_DACL_AUTO_INHERITED:
- ace.flags = ace.flags | security.SEC_ACE_FLAG_OBJECT_INHERIT | security.SEC_ACE_FLAG_CONTAINER_INHERIT
- if str(ace.trustee) == security.SID_CREATOR_OWNER:
- # For Creator/Owner the IO flag is set as this ACE has only a sense for child objects
- ace.flags = ace.flags | security.SEC_ACE_FLAG_INHERIT_ONLY
- ace.access_mask = ldapmask2filemask(ace.access_mask)
- fdescr.dacl_add(ace)
+def dsacl2fsacl(dssddl, domsid):
+ """
+
+ This function takes an the SDDL representation of a DS
+ ACL and return the SDDL representation of this ACL adapted
+ for files. It's used for Policy object provision
+ """
+ sid = security.dom_sid(domsid)
+ ref = security.descriptor.from_sddl(dssddl,sid)
+ fdescr = security.descriptor()
+ fdescr.owner_sid = ref.owner_sid
+ fdescr.group_sid = ref.group_sid
+ fdescr.type = ref.type
+ fdescr.revision = ref.revision
+ fdescr.sacl = ref.sacl
+ aces = ref.dacl.aces
+ for i in range(0,len(aces)):
+ ace = aces[i]
+ if not ace.type & security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT and str(ace.trustee) != security.SID_BUILTIN_PREW2K:
+ # if fdescr.type & security.SEC_DESC_DACL_AUTO_INHERITED:
+ ace.flags = ace.flags | security.SEC_ACE_FLAG_OBJECT_INHERIT | security.SEC_ACE_FLAG_CONTAINER_INHERIT
+ if str(ace.trustee) == security.SID_CREATOR_OWNER:
+ # For Creator/Owner the IO flag is set as this ACE has only a sense for child objects
+ ace.flags = ace.flags | security.SEC_ACE_FLAG_INHERIT_ONLY
+ ace.access_mask = ldapmask2filemask(ace.access_mask)
+ fdescr.dacl_add(ace)
- return fdescr.as_sddl(sid)
+ return fdescr.as_sddl(sid)
git.samba.org / ira / wip.git / blobdiff