blflashcommand/libs/base/wb03/img_create_do.py

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2023-04-20 21:04:18 +00:00
# decompyle3 version 3.9.0
# Python bytecode version base 3.7.0 (3394)
# Decompiled from: Python 3.7.16 (default, Mar 30 2023, 01:25:49)
# [GCC 12.2.1 20220924]
# Embedded file name: libs/base/wb03/img_create_do.py
import os, sys, hashlib, binascii, codecs, ecdsa
from CryptoPlus.Cipher import AES as AES_XTS
from libs import bflb_utils
from libs.bflb_utils import img_create_sha256_data, img_create_encrypt_data
from libs.bflb_configobj import BFConfigParser
from libs.base.wb03.flash_select_do import create_flashcfg_table
from libs.base.wb03.bootheader_cfg_keys import custom_config_len as custom_cfg_len
from libs.base.wb03.bootheader_cfg_keys import flashcfg_table_start_pos as flashcfg_table_start
from libs.base.wb03.bootheader_cfg_keys import bootcpucfg_start_pos as bootcpucfg_start
from libs.base.wb03.bootheader_cfg_keys import bootcpucfg_len as bootcpucfg_length
from libs.base.wb03.bootheader_cfg_keys import bootcpucfg_m0_index as bootcpucfg_m0_index_number
from libs.base.wb03.bootheader_cfg_keys import bootcfg_start_pos as bootcfg_start
from libs.base.wb03.bootheader_cfg_keys import bootheader_len as header_len
keyslot0 = 28
keyslot1 = keyslot0 + 16
keyslot2 = keyslot1 + 16
keyslot3 = keyslot2 + 16
keyslot3_end = keyslot3 + 16
keyslot4 = 128
keyslot5 = keyslot4 + 16
keyslot6 = keyslot5 + 16
keyslot7 = keyslot6 + 16
keyslot8 = keyslot7 + 16
keyslot9 = keyslot8 + 16
keyslot10 = keyslot9 + 16
keyslot10_end = keyslot10 + 16
keyslot11 = keyslot3_end + 16
keyslot11_end = keyslot11 + 16
wr_lock_boot_mode = 14
wr_lock_dbg_pwd = 15
wr_lock_wifi_mac = 16
wr_lock_key_slot_0 = 17
wr_lock_key_slot_1 = 18
wr_lock_key_slot_2 = 19
wr_lock_key_slot_3 = 20
wr_lock_sw_usage_0 = 21
wr_lock_sw_usage_1 = 22
wr_lock_sw_usage_2 = 23
wr_lock_sw_usage_3 = 24
wr_lock_key_slot_11 = 25
rd_lock_dbg_pwd = 26
rd_lock_key_slot_0 = 27
rd_lock_key_slot_1 = 28
rd_lock_key_slot_2 = 29
rd_lock_key_slot_3 = 30
rd_lock_key_slot_11 = 31
wr_lock_key_slot_4 = 15
wr_lock_key_slot_5 = 16
wr_lock_key_slot_6 = 17
wr_lock_key_slot_7 = 18
wr_lock_key_slot_8 = 19
wr_lock_key_slot_9 = 20
wr_lock_key_slot_10 = 21
rd_lock_key_slot_4 = 25
rd_lock_key_slot_5 = 26
rd_lock_key_slot_6 = 27
rd_lock_key_slot_7 = 28
rd_lock_key_slot_8 = 29
rd_lock_key_slot_9 = 30
rd_lock_key_slot_10 = 31
def bytearray_data_merge(data1, data2, len):
for i in range(len):
data1[i] |= data2[i]
return data1
def img_update_efuse_group0(cfg, sign, pk_hash, flash_encryp_type, flash_key, sec_eng_key_sel, sec_eng_key, security=False):
fp = open(cfg.get('Img_Group0_Cfg', 'efuse_file'), 'rb')
efuse_data = bytearray(fp.read()) + bytearray(0)
fp.close()
fp = open(cfg.get('Img_Group0_Cfg', 'efuse_mask_file'), 'rb')
efuse_mask_data = bytearray(fp.read()) + bytearray(0)
fp.close()
mask_4bytes = bytearray.fromhex('FFFFFFFF')
if flash_encryp_type >= 3:
efuse_data[0] |= 3
else:
efuse_data[0] |= flash_encryp_type
if sign > 0:
efuse_data[92] |= sign << 7
efuse_mask_data[92] |= 255
if flash_encryp_type > 0:
efuse_data[0] |= 48
efuse_mask_data[0] |= 255
rw_lock0 = 0
rw_lock1 = 0
if pk_hash is not None:
efuse_data[keyslot0:keyslot2] = pk_hash
efuse_mask_data[keyslot0:keyslot2] = mask_4bytes * 8
rw_lock0 |= 1 << wr_lock_key_slot_0
rw_lock0 |= 1 << wr_lock_key_slot_1
if flash_key is not None:
if flash_encryp_type == 1:
efuse_data[keyslot2:keyslot3] = flash_key[0:16]
efuse_mask_data[keyslot2:keyslot3] = mask_4bytes * 4
else:
if flash_encryp_type == 2:
efuse_data[keyslot2:keyslot3_end] = flash_key
efuse_mask_data[keyslot2:keyslot3_end] = mask_4bytes * 8
rw_lock0 |= 1 << wr_lock_key_slot_3
rw_lock0 |= 1 << rd_lock_key_slot_3
else:
if flash_encryp_type == 3:
efuse_data[keyslot2:keyslot3_end] = flash_key
efuse_mask_data[keyslot2:keyslot3_end] = mask_4bytes * 8
rw_lock0 |= 1 << wr_lock_key_slot_3
rw_lock0 |= 1 << rd_lock_key_slot_3
else:
if flash_encryp_type == 4 or flash_encryp_type == 5 or flash_encryp_type == 6:
efuse_data[keyslot2:keyslot3_end] = flash_key
efuse_mask_data[keyslot2:keyslot3_end] = mask_4bytes * 8
rw_lock0 |= 1 << wr_lock_key_slot_3
rw_lock0 |= 1 << rd_lock_key_slot_3
rw_lock0 |= 1 << wr_lock_key_slot_2
rw_lock0 |= 1 << rd_lock_key_slot_2
if sec_eng_key is not None:
if flash_encryp_type == 0:
if sec_eng_key_sel == 0:
efuse_data[keyslot2:keyslot3] = sec_eng_key[16:32]
efuse_data[keyslot3:keyslot3_end] = sec_eng_key[0:16]
efuse_mask_data[keyslot2:keyslot3_end] = mask_4bytes * 8
rw_lock0 |= 1 << wr_lock_key_slot_2
rw_lock0 |= 1 << wr_lock_key_slot_3
rw_lock0 |= 1 << rd_lock_key_slot_2
rw_lock0 |= 1 << rd_lock_key_slot_3
if sec_eng_key_sel == 1:
efuse_data[keyslot3:keyslot3_end] = sec_eng_key[16:32]
efuse_data[keyslot4:keyslot5] = sec_eng_key[0:16]
efuse_mask_data[keyslot3:keyslot3_end] = mask_4bytes * 4
efuse_mask_data[keyslot4:keyslot5] = mask_4bytes * 4
rw_lock0 |= 1 << wr_lock_key_slot_3
rw_lock1 |= 1 << wr_lock_key_slot_4
rw_lock0 |= 1 << rd_lock_key_slot_3
rw_lock1 |= 1 << rd_lock_key_slot_4
if sec_eng_key_sel == 2:
efuse_data[keyslot4:keyslot5] = sec_eng_key[16:32]
efuse_data[keyslot2:keyslot3] = sec_eng_key[0:16]
efuse_mask_data[keyslot3:keyslot5] = mask_4bytes * 8
rw_lock1 |= 1 << wr_lock_key_slot_4
rw_lock0 |= 1 << wr_lock_key_slot_2
rw_lock1 |= 1 << rd_lock_key_slot_4
rw_lock0 |= 1 << rd_lock_key_slot_2
if sec_eng_key_sel == 3:
efuse_data[keyslot4:keyslot5] = sec_eng_key[16:32]
efuse_data[keyslot2:keyslot3] = sec_eng_key[0:16]
efuse_mask_data[keyslot3:keyslot5] = mask_4bytes * 8
rw_lock1 |= 1 << wr_lock_key_slot_4
rw_lock0 |= 1 << wr_lock_key_slot_2
rw_lock1 |= 1 << rd_lock_key_slot_4
rw_lock0 |= 1 << rd_lock_key_slot_2
if flash_encryp_type == 1:
if sec_eng_key_sel == 0:
efuse_data[keyslot5:keyslot6] = sec_eng_key[0:16]
efuse_mask_data[keyslot5:keyslot6] = mask_4bytes * 4
rw_lock1 |= 1 << wr_lock_key_slot_5
rw_lock1 |= 1 << rd_lock_key_slot_5
if sec_eng_key_sel == 1:
efuse_data[keyslot4:keyslot5] = sec_eng_key[0:16]
efuse_mask_data[keyslot4:keyslot5] = mask_4bytes * 4
rw_lock1 |= 1 << wr_lock_key_slot_4
rw_lock1 |= 1 << rd_lock_key_slot_4
if sec_eng_key_sel == 2:
if flash_key is not None:
pass
else:
efuse_data[keyslot3:keyslot3_end] = sec_eng_key[0:16]
efuse_mask_data[keyslot3:keyslot3_end] = mask_4bytes * 4
rw_lock0 |= 1 << wr_lock_key_slot_3
rw_lock0 |= 1 << rd_lock_key_slot_3
if sec_eng_key_sel == 3:
if flash_key is not None:
pass
else:
efuse_data[keyslot2:keyslot3] = sec_eng_key[0:16]
efuse_mask_data[keyslot2:keyslot3] = mask_4bytes * 4
rw_lock0 |= 1 << wr_lock_key_slot_2
rw_lock0 |= 1 << rd_lock_key_slot_2
if flash_encryp_type == 2 or flash_encryp_type == 3 or flash_encryp_type == 4 or flash_encryp_type == 5 or flash_encryp_type == 6:
if sec_eng_key_sel == 0:
efuse_data[keyslot6:keyslot7] = sec_eng_key[16:32]
efuse_data[keyslot10:keyslot10_end] = sec_eng_key[0:16]
efuse_mask_data[keyslot6:keyslot7] = mask_4bytes * 4
efuse_mask_data[keyslot10:keyslot10_end] = mask_4bytes * 4
rw_lock1 |= 1 << wr_lock_key_slot_6
rw_lock1 |= 1 << wr_lock_key_slot_10
rw_lock1 |= 1 << rd_lock_key_slot_6
rw_lock1 |= 1 << rd_lock_key_slot_10
if sec_eng_key_sel == 1:
efuse_data[keyslot10:keyslot10_end] = sec_eng_key[16:32]
efuse_data[keyslot6:keyslot7] = sec_eng_key[0:16]
efuse_mask_data[keyslot6:keyslot7] = mask_4bytes * 4
efuse_mask_data[keyslot10:keyslot10_end] = mask_4bytes * 4
rw_lock1 |= 1 << wr_lock_key_slot_6
rw_lock1 |= 1 << wr_lock_key_slot_10
rw_lock1 |= 1 << rd_lock_key_slot_6
rw_lock1 |= 1 << rd_lock_key_slot_10
if sec_eng_key_sel == 2:
if flash_key is not None:
pass
else:
efuse_data[keyslot2:keyslot3] = sec_eng_key[16:32]
efuse_data[keyslot3:keyslot3_end] = sec_eng_key[0:16]
efuse_mask_data[keyslot2:keyslot3_end] = mask_4bytes * 8
rw_lock0 |= 1 << wr_lock_key_slot_2
rw_lock0 |= 1 << rd_lock_key_slot_2
rw_lock0 |= 1 << wr_lock_key_slot_3
rw_lock0 |= 1 << rd_lock_key_slot_3
if sec_eng_key_sel == 3:
if flash_key is not None:
pass
else:
efuse_data[keyslot2:keyslot3_end] = sec_eng_key
efuse_mask_data[keyslot2:keyslot3_end] = mask_4bytes * 8
rw_lock0 |= 1 << wr_lock_key_slot_2
rw_lock0 |= 1 << rd_lock_key_slot_2
rw_lock0 |= 1 << wr_lock_key_slot_3
rw_lock0 |= 1 << rd_lock_key_slot_3
efuse_data[124:128] = bytearray_data_merge(efuse_data[124:128], bflb_utils.int_to_4bytearray_l(rw_lock0), 4)
efuse_mask_data[124:128] = bytearray_data_merge(efuse_mask_data[124:128], bflb_utils.int_to_4bytearray_l(rw_lock0), 4)
efuse_data[252:256] = bytearray_data_merge(efuse_data[252:256], bflb_utils.int_to_4bytearray_l(rw_lock1), 4)
efuse_mask_data[252:256] = bytearray_data_merge(efuse_mask_data[252:256], bflb_utils.int_to_4bytearray_l(rw_lock1), 4)
if security is True:
bflb_utils.printf('Encrypt efuse data')
security_key, security_iv = bflb_utils.get_security_key()
efuse_data = img_create_encrypt_data(efuse_data, security_key, security_iv, 0)
efuse_data = bytearray(4096) + efuse_data
fp = open(cfg.get('Img_Group0_Cfg', 'efuse_file'), 'wb+')
fp.write(efuse_data)
fp.close()
fp = open(cfg.get('Img_Group0_Cfg', 'efuse_mask_file'), 'wb+')
fp.write(efuse_mask_data)
fp.close()
def img_create_get_sign_encrypt_info(bootheader_data):
sign = bootheader_data[bootcfg_start] & 3
encrypt = bootheader_data[bootcfg_start] >> 2 & 3
key_sel = bootheader_data[bootcfg_start] >> 4 & 3
xts_mode = bootheader_data[bootcfg_start] >> 6 & 1
return (
sign, encrypt, key_sel, xts_mode)
def img_create_get_img_start_addr(bootheader_data):
bootentry = []
bootentry.append(bflb_utils.bytearray_to_int(bflb_utils.bytearray_reverse(bootheader_data[bootcpucfg_start + bootcpucfg_length * bootcpucfg_m0_index_number + 16:bootcpucfg_start + bootcpucfg_length * bootcpucfg_m0_index_number + 16 + 4])))
return bootentry
def img_create_flash_default_data(length):
datas = bytearray(length)
for i in range(length):
datas[i] = 255
return datas
def img_get_file_data(files):
datas = []
for file in files:
if file == 'UNUSED':
datas.append(bytearray(0))
continue
else:
with open(file, 'rb') as fp:
data = fp.read()
datas.append(data)
return datas
def img_get_largest_addr(addrs, files):
min = 67108863
maxlen = 0
datalen = 0
for i in range(len(addrs)):
if files[i] == 'UNUSED':
continue
else:
addr = addrs[i] & 67108863
if addr >= maxlen:
maxlen = addr
datalen = os.path.getsize(files[i])
if addr <= min:
min = addr
if maxlen == 0:
if datalen == 0:
return (0, 0)
return (
maxlen + datalen - min, min)
def img_get_one_group_img(d_addrs, d_files):
whole_img_len, min = img_get_largest_addr(d_addrs, d_files)
whole_img_len &= 67108863
whole_img_data = img_create_flash_default_data(whole_img_len)
filedatas = img_get_file_data(d_files)
for i in range(len(d_addrs)):
if d_files[i] == 'UNUSED':
continue
else:
start_addr = d_addrs[i]
start_addr &= 67108863
start_addr -= min
whole_img_data[start_addr:start_addr + len(filedatas[i])] = filedatas[i]
return whole_img_data
def img_create_get_hash_ignore(bootheader_data):
return bootheader_data[bootcfg_start + 2] >> 1 & 1
def img_create_get_crc_ignore(bootheader_data):
return bootheader_data[bootcfg_start + 2] & 1
def img_create_update_bootheader_if(bootheader_data, hash, seg_cnt):
bootheader_data[bootcfg_start + 12:bootcfg_start + 12 + 4] = bflb_utils.int_to_4bytearray_l(seg_cnt)
sign = bootheader_data[bootcfg_start] & 3
encrypt = bootheader_data[bootcfg_start] >> 2 & 3
key_sel = bootheader_data[bootcfg_start] >> 4 & 3
xts_mode = bootheader_data[bootcfg_start] >> 6 & 1
if bootheader_data[bootcfg_start + 2] >> 1 & 1 == 1 and sign == 0:
bflb_utils.printf('Hash ignored')
else:
bootheader_data[bootcfg_start + 16:bootcfg_start + 16 + 32] = hash
if bootheader_data[bootcfg_start + 2] & 1 == 1:
bflb_utils.printf('Header crc ignored')
else:
hd_crcarray = bflb_utils.get_crc32_bytearray(bootheader_data[custom_cfg_len:header_len - 4])
bootheader_data[header_len - 4:header_len] = hd_crcarray
bflb_utils.printf('Header crc: ', binascii.hexlify(hd_crcarray))
return bootheader_data
def img_create_update_custom_bootheader(bootheader_data, seg_cnt, hash, signature, pk_data, aesiv_data):
bootheader_data[20:24] = bflb_utils.int_to_4bytearray_l(seg_cnt)
if hash != bytearray(0):
bootheader_data[28:60] = hash
if signature != bytearray(0):
bootheader_data[60:124] = signature[4:68]
if pk_data != bytearray(0):
bootheader_data[124:188] = pk_data[0:64]
if aesiv_data != bytearray(0):
bootheader_data[188:204] = aesiv_data[0:16]
bootheader_data[4:8] = bflb_utils.get_crc32_bytearray(bootheader_data[8:custom_cfg_len - 4])
return bootheader_data[0:header_len]
def img_create_update_bootheader(bootheader_data, hash, seg_cnt, flashcfg_table_addr, flashcfg_table_len):
bootheader_data[flashcfg_table_start:flashcfg_table_start + 4] = bflb_utils.int_to_4bytearray_l(flashcfg_table_addr)
bootheader_data[flashcfg_table_start + 4:flashcfg_table_start + 8] = bflb_utils.int_to_4bytearray_l(flashcfg_table_len)
bootheader_data[bootcfg_start + 12:bootcfg_start + 12 + 4] = bflb_utils.int_to_4bytearray_l(seg_cnt)
sign, encrypt, key_sel, xts_mode = img_create_get_sign_encrypt_info(bootheader_data)
if img_create_get_hash_ignore(bootheader_data) == 1 and sign == 0:
bflb_utils.printf('Hash ignored')
else:
bootheader_data[bootcfg_start + 16:bootcfg_start + 16 + 32] = hash
if img_create_get_crc_ignore(bootheader_data) == 1:
bflb_utils.printf('Header crc ignored')
else:
hd_crcarray = bflb_utils.get_crc32_bytearray(bootheader_data[custom_cfg_len:header_len - 4])
bootheader_data[header_len - 4:header_len] = hd_crcarray
bflb_utils.printf('Header crc: ', binascii.hexlify(hd_crcarray))
return bootheader_data[0:header_len]
def img_create_update_segheader(segheader, segdatalen, segdatacrc):
segheader[4:8] = segdatalen
segheader[8:12] = segdatacrc
return segheader
def reverse_str_data_unit_number(str_data_unit_number):
"""
high position low data
data unit number:00000280
storage format: 80020000
"""
reverse_str = ''
if len(str_data_unit_number) == 8:
str_part1 = str_data_unit_number[0:2]
str_part2 = str_data_unit_number[2:4]
str_part3 = str_data_unit_number[4:6]
str_part4 = str_data_unit_number[6:8]
reverse_str = str_part4 + str_part3 + str_part2 + str_part1
return reverse_str
def reverse_iv(need_reverse_iv_bytearray):
temp_reverse_iv_bytearray = binascii.hexlify(need_reverse_iv_bytearray).decode()
if temp_reverse_iv_bytearray[24:32] != '00000000':
bflb_utils.printf('The lower 4 bytes of IV should be set 0, if set IV is less than 16 bytes, make up 0 for the low 4 bytes of IV ')
sys.exit()
reverse_iv_bytearray = '00000000' + temp_reverse_iv_bytearray[0:24]
return reverse_iv_bytearray
def img_create_encrypt_data_xts(data_bytearray, key_bytearray, iv_bytearray, encrypt):
counter = binascii.hexlify(iv_bytearray[4:16]).decode()
data_unit_number = 0
key = (
key_bytearray[0:16], key_bytearray[16:32])
if encrypt == 2 or encrypt == 3:
key = (
key_bytearray, key_bytearray)
cipher = AES_XTS.new(key, AES_XTS.MODE_XTS)
total_len = len(data_bytearray)
ciphertext = bytearray(0)
deal_len = 0
while deal_len < total_len:
data_unit_number = str(hex(data_unit_number)).replace('0x', '')
data_unit_number_to_str = str(data_unit_number)
right_justify_str = data_unit_number_to_str.rjust(8, '0')
reverse_data_unit_number_str = reverse_str_data_unit_number(right_justify_str)
tweak = reverse_data_unit_number_str + counter
tweak = bflb_utils.hexstr_to_bytearray('0' * (32 - len(tweak)) + tweak)
if 32 + deal_len <= total_len:
cur_block = data_bytearray[0 + deal_len:32 + deal_len]
ciphertext += cipher.encrypt(cur_block, tweak)
else:
cur_block = data_bytearray[0 + deal_len:16 + deal_len] + bytearray(16)
ciphertext += cipher.encrypt(cur_block, tweak)[0:16]
deal_len += 32
data_unit_number = int(data_unit_number, 16)
data_unit_number += 1
return ciphertext
def img_create_sign_data(data_bytearray, privatekey_file_uecc, publickey_file):
sk = ecdsa.SigningKey.from_pem(open(privatekey_file_uecc).read())
vk = ecdsa.VerifyingKey.from_pem(open(publickey_file).read())
pk_data = vk.to_string()
bflb_utils.printf('Private key: ', binascii.hexlify(sk.to_string()))
bflb_utils.printf('Public key: ', binascii.hexlify(pk_data))
pk_hash = img_create_sha256_data(pk_data)
bflb_utils.printf('Public key hash=', binascii.hexlify(pk_hash))
signature = sk.sign(data_bytearray, hashfunc=(hashlib.sha256), sigencode=(ecdsa.util.sigencode_string))
bflb_utils.printf('Signature=', binascii.hexlify(signature))
len_array = bflb_utils.int_to_4bytearray_l(len(signature))
sig_field = len_array + signature
crcarray = bflb_utils.get_crc32_bytearray(sig_field)
return (
pk_data, pk_hash, sig_field + crcarray)
def img_create_read_file_append_crc(file, crc):
fp = open(file, 'rb')
read_data = bytearray(fp.read())
crcarray = bytearray(0)
if crc:
crcarray = bflb_utils.get_crc32_bytearray(read_data)
fp.close()
return read_data + crcarray
def encrypt_loader_bin_do(file, sign, encrypt, temp_encrypt_key, temp_encrypt_iv, publickey_file, privatekey_file):
if encrypt != 0 or sign != 0:
encrypt_key = bytearray(0)
encrypt_iv = bytearray(0)
load_helper_bin_header = bytearray(0)
load_helper_bin_body = bytearray(0)
offset = bootcfg_start
sign_pos = 0
encrypt_type_pos = 2
pk_data = bytearray(0)
signature = bytearray(0)
aesiv_data = bytearray(0)
data_tohash = bytearray(0)
with open(file, 'rb') as fp:
load_helper_bin = fp.read()
load_helper_bin_header = load_helper_bin[0:header_len]
load_helper_bin_body = load_helper_bin[header_len:]
if load_helper_bin_header != bytearray(0):
if load_helper_bin_body != bytearray(0):
load_helper_bin_body = bflb_utils.add_to_16(load_helper_bin_body)
if encrypt != 0:
encrypt_key = bflb_utils.hexstr_to_bytearray(temp_encrypt_key)
encrypt_iv = bflb_utils.hexstr_to_bytearray(temp_encrypt_iv)
iv_crcarray = bflb_utils.get_crc32_bytearray(encrypt_iv)
aesiv_data = encrypt_iv + iv_crcarray
data_tohash = data_tohash + aesiv_data
load_helper_bin_body_encrypt = bflb_utils.img_create_encrypt_data(load_helper_bin_body, encrypt_key, encrypt_iv, 0)
else:
load_helper_bin_body_encrypt = load_helper_bin_body
data = bytearray(load_helper_bin_header)
oldval = bflb_utils.bytearray_to_int(bflb_utils.bytearray_reverse(data[offset:offset + 4]))
newval = oldval
if encrypt != 0:
newval = newval | 1 << encrypt_type_pos
if sign != 0:
newval = newval | 1 << sign_pos
data_tohash += load_helper_bin_body_encrypt
pk_data, pk_hash, signature = img_create_sign_data(data_tohash, privatekey_file, publickey_file)
pk_data = pk_data + bflb_utils.get_crc32_bytearray(pk_data)
data[offset:offset + 4] = bflb_utils.int_to_4bytearray_l(newval)
load_helper_bin_header = data
load_helper_bin_encrypt = load_helper_bin_header + pk_data + signature + aesiv_data + load_helper_bin_body_encrypt
hashfun = hashlib.sha256()
hashfun.update(load_helper_bin_body_encrypt)
hash = bflb_utils.hexstr_to_bytearray(hashfun.hexdigest())
load_helper_bin_data = bytearray(load_helper_bin_encrypt)
load_helper_bin_encrypt = img_create_update_bootheader_if(load_helper_bin_data, hash, 1)
return (
True, load_helper_bin_encrypt)
return (False, None)
def img_creat_process(group_type, flash_img, cfg, security=False):
encrypt_blk_size = 16
padding = bytearray(encrypt_blk_size)
data_tohash = bytearray(0)
cfg_section = ''
img_update_efuse_fun = img_update_efuse_group0
cfg_section = 'Img_Group0_Cfg'
segheader_file = []
if flash_img == 0:
for files in cfg.get(cfg_section, 'segheader_file').split(' '):
segheader_file.append(str(files))
segdata_file = []
for files in cfg.get(cfg_section, 'segdata_file').split('|'):
if files:
segdata_file.append(str(files))
boot_header_file = cfg.get(cfg_section, 'boot_header_file')
bootheader_data = img_create_read_file_append_crc(boot_header_file, 0)
encrypt = 0
sign, encrypt, key_sel, xts_mode = img_create_get_sign_encrypt_info(bootheader_data)
boot_entry = img_create_get_img_start_addr(bootheader_data)
aesiv_data = bytearray(0)
pk_data = bytearray(0)
publickey_file = ''
privatekey_file_uecc = ''
if sign != 0:
bflb_utils.printf('Image need sign')
publickey_file = cfg.get(cfg_section, 'publickey_file')
privatekey_file_uecc = cfg.get(cfg_section, 'privatekey_file_uecc')
if encrypt != 0:
bflb_utils.printf('Image need encrypt ', encrypt)
if xts_mode == 1:
bflb_utils.printf('Enable xts mode')
encrypt_key_org = bflb_utils.hexstr_to_bytearray(cfg.get(cfg_section, 'aes_key_org'))
if encrypt == 1:
if xts_mode == 1:
encrypt_key = encrypt_key_org[0:32]
else:
encrypt_key = encrypt_key_org[0:16]
else:
if encrypt == 2:
if xts_mode == 1:
encrypt_key = encrypt_key_org[0:32]
else:
encrypt_key = encrypt_key_org[0:32]
else:
if encrypt == 3:
if xts_mode == 1:
encrypt_key = encrypt_key_org[0:24]
else:
encrypt_key = encrypt_key_org[0:24]
bflb_utils.printf('Key= ', binascii.hexlify(encrypt_key))
iv_value = cfg.get(cfg_section, 'aes_iv')
if xts_mode == 1:
iv_value = iv_value[24:32] + iv_value[:24]
encrypt_iv = bflb_utils.hexstr_to_bytearray(iv_value)
iv_crcarray = bflb_utils.get_crc32_bytearray(encrypt_iv)
aesiv_data = encrypt_iv + iv_crcarray
seg_cnt = len(segheader_file)
segdata_cnt = len(segdata_file)
if flash_img == 0:
if seg_cnt != segdata_cnt:
bflb_utils.printf('Segheader count and segdata count not match')
return (
'FAIL', data_tohash)
data_toencrypt = bytearray(0)
if flash_img == 0:
i = 0
seg_header_list = []
seg_data_list = []
while i < seg_cnt:
seg_data = bytearray(0)
if segdata_file[i] != 'UNUSED':
seg_data = img_create_read_file_append_crc(segdata_file[i], 0)
else:
padding_size = 0
if len(seg_data) % encrypt_blk_size != 0:
padding_size = encrypt_blk_size - len(seg_data) % encrypt_blk_size
seg_data += padding[0:padding_size]
segdata_crcarray = bflb_utils.get_crc32_bytearray(seg_data)
seg_data_list.append(seg_data)
seg_header = img_create_read_file_append_crc(segheader_file[i], 0)
seg_header = img_create_update_segheader(seg_header, bflb_utils.int_to_4bytearray_l(len(seg_data)), segdata_crcarray)
segheader_crcarray = bflb_utils.get_crc32_bytearray(seg_header)
seg_header = seg_header + segheader_crcarray
seg_header_list.append(seg_header)
i = i + 1
i = 0
cnt = 0
while i < seg_cnt:
if seg_header_list[i][4:8] != bytearray(4):
data_toencrypt += seg_header_list[i]
data_toencrypt += seg_data_list[i]
cnt += 1
else:
i += 1
seg_cnt = cnt
else:
seg_data = img_get_one_group_img(boot_entry, segdata_file)
padding_size = 0
if len(seg_data) % encrypt_blk_size != 0:
padding_size = encrypt_blk_size - len(seg_data) % encrypt_blk_size
seg_data += padding[0:padding_size]
data_toencrypt += seg_data
seg_cnt = len(data_toencrypt)
if encrypt != 0:
unencrypt_mfg_data = bytearray(0)
if seg_cnt >= 8192:
if data_toencrypt[4096:4100] == bytearray('0mfg'.encode('utf-8')):
unencrypt_mfg_data = data_toencrypt[4096:8192]
if xts_mode != 0:
data_toencrypt = img_create_encrypt_data_xts(data_toencrypt, encrypt_key, encrypt_iv, encrypt)
else:
data_toencrypt = img_create_encrypt_data(data_toencrypt, encrypt_key, encrypt_iv, flash_img)
if unencrypt_mfg_data != bytearray(0):
data_toencrypt = data_toencrypt[0:4096] + unencrypt_mfg_data + data_toencrypt[8192:]
fw_data = bytearray(0)
data_tohash += data_toencrypt
fw_data = data_toencrypt
hash = img_create_sha256_data(data_tohash)
bflb_utils.printf('Image hash is ', binascii.hexlify(hash))
signature = bytearray(0)
pk_hash = None
if sign == 1:
pk_data, pk_hash, signature = img_create_sign_data(data_tohash, privatekey_file_uecc, publickey_file)
pk_data = pk_data + bflb_utils.get_crc32_bytearray(pk_data)
flashCfgAddr = len(bootheader_data + pk_data + signature + aesiv_data)
flashCfgListLen = 0
flashCfgList = bytearray(0)
flashCfgTable = bytearray(0)
if flash_img == 1:
if bootheader_data[233:234] == b'\xff':
flashCfgList, flashCfgTable, flashCfgListLen = create_flashcfg_table(flashCfgAddr)
bootheader_data = img_create_update_custom_bootheader(bootheader_data, seg_cnt, hash, signature, pk_data, aesiv_data)
bootheader_data = img_create_update_bootheader(bootheader_data, hash, seg_cnt, flashCfgAddr, flashCfgListLen)
if flash_img == 1:
bflb_utils.printf('Write flash img')
bootinfo_file_name = cfg.get(cfg_section, 'bootinfo_file')
fp = open(bootinfo_file_name, 'wb+')
bootinfo = bootheader_data + pk_data + signature + aesiv_data + flashCfgList + flashCfgTable
fp.write(bootinfo)
fp.close()
fw_file_name = cfg.get(cfg_section, 'img_file')
fp = open(fw_file_name, 'wb+')
fp.write(fw_data)
fp.close()
fw_data_hash = img_create_sha256_data(fw_data)
fp = open(fw_file_name.replace('.bin', '_withhash.bin'), 'wb+')
fp.write(fw_data + fw_data_hash)
fp.close()
if encrypt != 0:
flash_encrypt_type = 0
if encrypt == 1:
flash_encrypt_type = 1
if encrypt == 2:
flash_encrypt_type = 3
if encrypt == 3:
flash_encrypt_type = 2
if xts_mode == 1:
flash_encrypt_type += 3
img_update_efuse_fun(cfg, sign, pk_hash, flash_encrypt_type, encrypt_key + bytearray(32 - len(encrypt_key)), key_sel, None, security)
else:
img_update_efuse_fun(cfg, sign, pk_hash, encrypt, None, key_sel, None, security)
else:
bflb_utils.printf('Write if img')
whole_img_file_name = cfg.get(cfg_section, 'whole_img_file')
fp = open(whole_img_file_name, 'wb+')
img_data = bootheader_data + pk_data + signature + aesiv_data + fw_data
fp.write(img_data)
fp.close()
if encrypt != 0:
if_encrypt_type = 0
if encrypt == 1:
if_encrypt_type = 1
if encrypt == 2:
if_encrypt_type = 3
if encrypt == 3:
if_encrypt_type = 2
if xts_mode == 1:
if_encrypt_type += 3
img_update_efuse_fun(cfg, sign, pk_hash, if_encrypt_type, None, key_sel, encrypt_key + bytearray(32 - len(encrypt_key)), security)
else:
img_update_efuse_fun(cfg, sign, pk_hash, 0, None, key_sel, bytearray(32), security)
return (
'OK', data_tohash)
def img_create_do(args, img_dir_path=None, config_file=None):
bflb_utils.printf('Image create path: ', img_dir_path)
if config_file is None:
config_file = img_dir_path + '/img_create_cfg.ini'
bflb_utils.printf('Config file: ', config_file)
cfg = BFConfigParser()
cfg.read(config_file)
group_type = 'all'
img_type = 'media'
signer = 'none'
security = False
data_tohash = bytearray(0)
try:
if args.image:
img_type = args.image
if args.group:
group_type = args.group
if args.signer:
signer = args.signer
if args.security:
security = args.security == 'efuse'
except Exception as e:
try:
bflb_utils.printf(e)
finally:
e = None
del e
if img_type == 'media':
flash_img = 1
else:
flash_img = 0
ret0 = ret1 = 'OK'
if group_type == 'group0' or group_type == 'all':
ret0, data_tohash0 = img_creat_process('group0', flash_img, cfg, security)
else:
img_creat_process('', flash_img, cfg, security)
if ret0 != 'OK':
bflb_utils.printf('Fail to create group0 images!')
return
if ret1 != 'OK':
bflb_utils.printf('Fail to create group1 images!')
def create_sp_media_image(config, cpu_type=None, security=False):
bflb_utils.printf('========= sp image create =========')
cfg = BFConfigParser()
cfg.read(config)
img_creat_process('group0', 1, cfg, security)
if __name__ == '__main__':
data_bytearray = codecs.decode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hex')
key_bytearray = codecs.decode('fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0000102030405060708090a0b0c0d0e0f', 'hex')
need_reverse_iv_bytearray = codecs.decode('01000000000000000000000000000000', 'hex')
iv_bytearray = codecs.decode(reverse_iv(need_reverse_iv_bytearray), 'hex')
img_create_encrypt_data_xts(data_bytearray, key_bytearray, iv_bytearray, 0)
# okay decompiling ./libs/base/wb03/img_create_do.pyc