1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
## @file
# This file is used to define the Ffs Header C Struct.
#
# Copyright (c) 2021-, Intel Corporation. All rights reserved.<BR>
# SPDX-License-Identifier: BSD-2-Clause-Patent
##
from struct import *
from ctypes import *
from FirmwareStorageFormat.Common import *
EFI_FFS_FILE_HEADER_LEN = 24
EFI_FFS_FILE_HEADER2_LEN = 32
class CHECK_SUM(Structure):
_pack_ = 1
_fields_ = [
('Header', c_uint8),
('File', c_uint8),
]
class EFI_FFS_INTEGRITY_CHECK(Union):
_pack_ = 1
_fields_ = [
('Checksum', CHECK_SUM),
('Checksum16', c_uint16),
]
class EFI_FFS_FILE_HEADER(Structure):
_pack_ = 1
_fields_ = [
('Name', GUID),
('IntegrityCheck', EFI_FFS_INTEGRITY_CHECK),
('Type', c_uint8),
('Attributes', c_uint8),
('Size', ARRAY(c_uint8, 3)),
('State', c_uint8),
]
@property
def FFS_FILE_SIZE(self) -> int:
return self.Size[0] | self.Size[1] << 8 | self.Size[2] << 16
@property
def HeaderLength(self) -> int:
return 24
class EFI_FFS_FILE_HEADER2(Structure):
_pack_ = 1
_fields_ = [
('Name', GUID),
('IntegrityCheck', EFI_FFS_INTEGRITY_CHECK),
('Type', c_uint8),
('Attributes', c_uint8),
('Size', ARRAY(c_uint8, 3)),
('State', c_uint8),
('ExtendedSize', c_uint64),
]
@property
def FFS_FILE_SIZE(self) -> int:
return self.ExtendedSize
@property
def HeaderLength(self) -> int:
return 32
|
