def write_sb(cpu_params: CpuParams, image_file_name: str, img: SecureBootV1) -> None:
"""Write SB image to the external flash
The method behaviour depends on TEST_IMG_CONTENT:
- if True (TEST MODE), the method generates the image and compare with previous version
- if False (PRODUCTION), the method generates the image and burn into FLASH
:param cpu_params: processor specific parameters of the test
:param image_file_name: of the image to be written (including file extension)
:param img: image instance to be written
"""
path = os.path.join(cpu_params.data_dir, OUTPUT_IMAGES_SUBDIR, image_file_name)
dbg_info = DebugInfo()
img_data = img.export(dbg_info=dbg_info,
# use the following parameters only for unit test
header_padding8=b'\xdb\x00\x76\x7a\xf4\x81\x0b\x86',
auth_padding=b'\x36\x72\xf4\x99\x92\x05\x34\xd2\xd5\x17\xa0\xf7')
write_dbg_log(cpu_params.data_dir, image_file_name, dbg_info.lines, TEST_IMG_CONTENT)
if TEST_IMG_CONTENT:
assert img.info() # quick check info prints non-empty output
compare_bin_files(path, img_data)
img = SecureBootV1.parse(b'0' + img_data, 1)
dbg_info2 = DebugInfo()
img_data2 = img.export(dbg_info=dbg_info2, header_padding8=b'\xdb\x00\x76\x7a\xf4\x81\x0b\x86',
auth_padding=b'\x36\x72\xf4\x99\x92\x05\x34\xd2\xd5\x17\xa0\xf7')
assert dbg_info.lines == dbg_info2.lines
assert img_data == img_data2
else:
with open(path, 'wb') as f:
f.write(img_data)
mboot = init_flashloader(cpu_params)
assert mboot.receive_sb_file(img_data)
mboot.close()
def test_bootimage_rt10xx_basic():
"""Simple test for BootImgRT"""
img = BootImgRT(0x60000000)
assert img.info()
dbg_info = DebugInfo()
img_data = img.export(dbg_info=dbg_info)
# test parser returns same result
dbg_info2 = DebugInfo()
img_data2 = BootImgRT.parse(img_data).export(dbg_info=dbg_info2)
assert dbg_info.lines == dbg_info2.lines
assert img_data == img_data2
def write_image(
cpu_params: CpuParams,
image_file_name: str,
img: BootImgRT,
otpmk_bee_regions: Tuple[BeeFacRegion, ...] = tuple(),
) -> None:
"""Write image to the external flash
The method behaviour depends on TEST_IMG_CONTENT:
- if True (TEST MODE), the method generates the image and compare with previous version
- if False (PRODUCTION), the method generates the image and burn into FLASH
:param cpu_params: processor specific parameters of the test
:param image_file_name: of the image to be written (including file extension)
:param img: image instance to be written
:param otpmk_bee_regions: optional list of BEE regions for BEE OTPMK encryption
"""
path = os.path.join(cpu_params.data_dir, OUTPUT_IMAGES_SUBDIR,
image_file_name)
debug_info = DebugInfo()
# use zulu datetime for test purposes only, to produce stable output; remove the parameter for production
zulu = datetime(year=2020,
month=4,
day=8,
hour=5,
minute=54,
second=33,
tzinfo=timezone.utc)
img_data = img.export(dbg_info=debug_info, zulu=zulu)
assert len(img_data) == img.size
write_dbg_log(cpu_params.data_dir, image_file_name, debug_info.lines,
TEST_IMG_CONTENT)
if TEST_IMG_CONTENT:
assert img.info() # quick check info prints non-empty output
compare_bin_files(path, img_data)
# compare no-padding
if (NO_PADDING and img.fcb.enabled and isinstance(img.fcb, PaddingFCB)
and not img.bee_encrypted):
img.fcb.enabled = False
compare_bin_files(path.replace(".bin", "_nopadding.bin"),
img.export(zulu=zulu))
img.fcb.enabled = False
# test that parse image will return same content
if img.fcb.enabled and not img.bee_encrypted:
compare_bin_files(path, BootImgRT.parse(img_data).export())
# test that size matches len of exported data
assert img.size == len(img_data)
else:
with open(path, "wb") as f:
f.write(img_data)
if (NO_PADDING and img.fcb.enabled and isinstance(img.fcb, PaddingFCB)
and not img.bee_encrypted):
with open(path.replace(".bin", "_nopadding.bin"), "wb") as f:
f.write(img_data[img.ivt_offset:])
if img.ivt_offset == BootImgRT.IVT_OFFSET_NOR_FLASH:
_burn_image_to_flash(cpu_params, img, img_data, otpmk_bee_regions)
else:
assert len(otpmk_bee_regions) == 0
_burn_image_to_sd(cpu_params, img, img_data)
def test_debug_info() -> None:
"""Test basic DebugInfo methods"""
dbg_info = DebugInfo()
assert dbg_info.enabled
_log_test_output(dbg_info)
assert dbg_info.lines == [
'[SECTION]',
'-test-line-',
'[bin]',
'hex=001122ff',
'len=4=0x4',
'data=001122',
'hex=001122001122001122001122',
'len=12=0xc',
]
def test_debug_info() -> None:
"""Test basic DebugInfo methods"""
dbg_info = DebugInfo()
assert dbg_info.enabled
_log_test_output(dbg_info)
assert dbg_info.lines == [
"[SECTION]",
"-test-line-",
"[bin]",
"hex=001122ff",
"len=4=0x4",
"data=001122",
"hex=001122001122001122001122",
"len=12=0xc",
]
def test_debug_info_invalid():
dbg_info = DebugInfo()
with pytest.raises(SPSDKError, match="Incorrect data length"):
dbg_info.append_binary_data("data", bytes(20))
