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modified: patch.py

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zyb 2025-07-13 14:27:34 +08:00
parent 6dccdda7bb
commit 2b9db1436c
1 changed files with 28 additions and 2 deletions
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patch.py
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@ -32,9 +32,35 @@ def replace_key(old,new,data,name=''):
if old_bytes in data: if old_bytes in data:
print(f'{name} public key patched {old[:16].hex().upper()}...') print(f'{name} public key patched {old[:16].hex().upper()}...')
data = data.replace(old_bytes,new_bytes) data = data.replace(old_bytes,new_bytes)
old_codes = [bytes.fromhex('793583E2'),bytes.fromhex('FD3A83E2'),bytes.fromhex('193D83E2')] old_codes = [bytes.fromhex('793583E2'),bytes.fromhex('FD3A83E2'),bytes.fromhex('193D83E2')] #0x1e400000+0xfd000+0x640
new_codes = [bytes.fromhex('FF34A0E3'),bytes.fromhex('753C83E2'),bytes.fromhex('FC3083E2')] new_codes = [bytes.fromhex('FF34A0E3'),bytes.fromhex('753C83E2'),bytes.fromhex('FC3083E2')] #0xff0075fc= 0xff000000+0x7500+0xfc
data = replace_chunks(old_codes, new_codes, data,name) data = replace_chunks(old_codes, new_codes, data,name)
else:
def conver_chunks(data:bytes):
ret = [
(data[2] << 16) | (data[1] << 8) | data[0] | ((data[3] << 24) & 0x03000000),
(data[3] >> 2) | (data[4] << 6) | (data[5] << 14) | ((data[6] << 22) & 0x1C00000),
(data[6] >> 3) | (data[7] << 5) | (data[8] << 13) | ((data[9] << 21) & 0x3E00000),
(data[9] >> 5) | (data[10] << 3) | (data[11] << 11) | ((data[12] << 19) & 0x1F80000),
(data[12] >> 6) | (data[13] << 2) | (data[14] << 10) | (data[15] << 18),
data[16] | (data[17] << 8) | (data[18] << 16) | ((data[19] << 24) & 0x01000000),
(data[19] >> 1) | (data[20] << 7) | (data[21] << 15) | ((data[22] << 23) & 0x03800000),
(data[22] >> 3) | (data[23] << 5) | (data[24] << 13) | ((data[25] << 21) & 0x1E00000),
(data[25] >> 4) | (data[26] << 4) | (data[27] << 12) | ((data[28] << 20) & 0x3F00000),
(data[28] >> 6) | (data[29] << 2) | (data[30] << 10) | (data[31] << 18)
]
return [struct.pack('<I', x ) for x in ret]
old_chunks = conver_chunks(old)
new_chunks = conver_chunks(new)
old_bytes = b''.join([v for i,v in enumerate(old_chunks) if i != 8])
new_bytes = b''.join([v for i,v in enumerate(new_chunks) if i != 8])
if old_bytes in data:
print(f'{name} public key patched {old[:16].hex().upper()}...')
data = data.replace(old_bytes,new_bytes)
old_codes = [bytes.fromhex('713783E2'),bytes.fromhex('223A83E2'),bytes.fromhex('8D3F83E2')] #0x1C40000+0x22000+0x234
new_codes = [bytes.fromhex('973303E3'),bytes.fromhex('DD3883E3'),bytes.fromhex('033483E3')] #0x03DD3397 = 0x3397|0x00DD0000|0x03000000
data = replace_chunks(old_codes, new_codes, data,name)
return data return data
def patch_bzimage(data:bytes,key_dict:dict): def patch_bzimage(data:bytes,key_dict:dict):