(cls, data)
| 341 | |
| 342 | @classmethod |
| 343 | def from_bytes(cls, data): |
| 344 | owner = None |
| 345 | group = None |
| 346 | dacl = None |
| 347 | sacl = None |
| 348 | |
| 349 | header = data[:struct.calcsize(cls.HEADER_FORMAT)] |
| 350 | (revision, sbz1, flags, owner_offset, group_offset, sacl_offset, |
| 351 | dacl_offset) = struct.unpack(cls.HEADER_FORMAT, header) |
| 352 | |
| 353 | assert revision == 1 |
| 354 | assert flags & SECURITY_DESCRIPTOR_SELF_RELATIVE |
| 355 | for offset in (owner_offset, group_offset, sacl_offset, dacl_offset): |
| 356 | assert 0 <= offset < len(data) |
| 357 | |
| 358 | if owner_offset: |
| 359 | owner = SID.from_bytes(data[owner_offset:]) |
| 360 | if group_offset: |
| 361 | group = SID.from_bytes(data[group_offset:]) |
| 362 | if dacl_offset: |
| 363 | dacl = ACL.from_bytes(data[dacl_offset:]) |
| 364 | if sacl_offset: |
| 365 | sacl = ACL.from_bytes(data[sacl_offset:]) |
| 366 | |
| 367 | return cls(flags, owner, group, dacl, sacl) |
nothing calls this directly
no test coverage detected