mirror of
https://github.com/bkerler/mtkclient.git
synced 2024-12-02 20:26:57 -05:00
660 lines
26 KiB
Python
Executable file
660 lines
26 KiB
Python
Executable file
#!/usr/bin/env python3
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# MTK Stage2 Client (c) B.Kerler 2018-2021.
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# Licensed under MIT License
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import os
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import sys
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import logging
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import time
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import argparse
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import hashlib
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from binascii import hexlify
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from struct import pack, unpack
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from mtkclient.Library.usblib import usb_class
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from mtkclient.Library.utils import LogBase
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from mtkclient.Library.utils import print_progress
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from mtkclient.Library.hwcrypto import crypto_setup, hwcrypto
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from mtkclient.config.brom_config import Mtk_Config
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from mtkclient.config.usb_ids import default_ids
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class Stage2(metaclass=LogBase):
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def __init__(self, args, loglevel=logging.INFO):
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self.__logger = self.__logger
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self.args = args
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self.loglevel = loglevel
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self.info = self.__logger.info
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self.error = self.__logger.error
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self.warning = self.__logger.warning
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self.emmc_inited = False
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# Setup HW Crypto chip variables
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self.setup = crypto_setup()
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if loglevel == logging.DEBUG:
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logfilename = os.path.join("logs", "log.txt")
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if os.path.exists(logfilename):
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os.remove(logfilename)
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fh = logging.FileHandler(logfilename, encoding='utf-8')
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self.__logger.addHandler(fh)
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self.__logger.setLevel(logging.DEBUG)
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else:
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self.__logger.setLevel(logging.INFO)
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self.cdc = usb_class(portconfig=default_ids, loglevel=loglevel, devclass=10)
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self.usbread=self.cdc.usbread
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self.usbwrite=self.cdc.usbwrite
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def preinit(self):
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try:
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hwcode = self.read32(0x8000000)
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except:
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print("Error reading hwcode...aborting.")
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return False
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self.config = Mtk_Config(self.loglevel)
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self.config.init_hwcode(hwcode)
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self.setup.blacklist = self.config.chipconfig.blacklist
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self.setup.gcpu_base = self.config.chipconfig.gcpu_base
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self.setup.dxcc_base = self.config.chipconfig.dxcc_base
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self.setup.da_payload_addr = self.config.chipconfig.da_payload_addr
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self.setup.sej_base = self.config.chipconfig.sej_base
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self.setup.read32 = self.read32
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self.setup.write32 = self.write32
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self.setup.writemem = self.memwrite
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self.setup.meid_addr = self.config.chipconfig.meid_addr
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self.setup.socid_addr = self.config.chipconfig.socid_addr
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self.hwcrypto = hwcrypto(self.setup, self.loglevel)
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return True
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def init_emmc(self):
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x6001))
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if unpack("<I", self.usbread(4))[0] != 0x1:
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x6000))
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time.sleep(2)
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if unpack("<I", self.usbread(4))[0] == 0xD1D1D1D1:
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return True
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self.emmc_inited = True
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return False
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def jump(self, addr):
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x4001))
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self.usbwrite(pack(">I", addr))
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time.sleep(5)
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if unpack("<I", self.usbread(4))[0] == 0xD0D0D0D0:
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return True
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return False
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def read32(self, addr, dwords=1):
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result = []
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for pos in range(dwords):
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x4002))
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self.usbwrite(pack(">I", addr + (pos * 4)))
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self.usbwrite(pack(">I", 4))
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result.append(unpack("<I", self.usbread(4))[0])
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if len(result) == 1:
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return result[0]
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return result
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def cmd_C8(self, val) -> bool:
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'Clear cache func'
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x5000))
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ack = self.usbread(4)
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if ack == b"\xD0\xD0\xD0\xD0":
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return True
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return False
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def write32(self, addr, dwords) -> bool:
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if isinstance(dwords, int):
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dwords = [dwords]
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for pos in range(0, len(dwords)):
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x4000))
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self.usbwrite(pack(">I", addr + (pos * 4)))
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self.usbwrite(pack(">I", 4))
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self.usbwrite(pack("<I", dwords[pos]))
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ack = self.usbread(4)
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if ack == b"\xD0\xD0\xD0\xD0":
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continue
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else:
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return False
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return True
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def connect(self):
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self.cdc.connected = self.cdc.connect()
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return self.cdc.connected
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def close(self):
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if self.cdc.connected:
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self.cdc.close()
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def readflash(self, type: int, start, length, display=False, filename: str = None):
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if not self.emmc_inited:
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self.init_emmc()
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wf = None
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buffer = bytearray()
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if filename is not None:
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wf = open(filename, "wb")
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sectors = (length // 0x200)
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sectors += (1 if length % 0x200 else 0)
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startsector = (start // 0x200)
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# emmc_switch(1)
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x1002))
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self.usbwrite(pack(">I", type))
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if display:
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print_progress(0, 100, prefix='Progress:', suffix='Complete', bar_length=50)
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# kick-wdt
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# self.usbwrite(pack(">I", 0xf00dd00d))
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# self.usbwrite(pack(">I", 0x3001))
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bytestoread = length
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bytesread = 0
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old = 0
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# emmc_read(0)
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for sector in range(startsector, sectors):
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x1000))
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self.usbwrite(pack(">I", sector))
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tmp = self.usbread(0x200)
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if not tmp or len(tmp) != 0x200:
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self.error("Error on getting data")
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return
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if display:
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prog = sector / sectors * 100
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if round(prog, 1) > old:
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print_progress(prog, 100, prefix='Progress:',
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suffix='Complete, Sector:' + hex(sector),
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bar_length=50)
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old = round(prog, 1)
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bytesread += len(tmp)
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size = min(bytestoread, len(tmp))
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if wf is not None:
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wf.write(tmp[:size])
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else:
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buffer.extend(tmp)
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bytestoread -= size
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if display:
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print_progress(100, 100, prefix='Complete: ', suffix=filename, bar_length=50)
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if wf is not None:
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wf.close()
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else:
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return buffer[start % 0x200:(start % 0x200) + length]
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def preloader(self, start, length, filename):
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sectors = 0
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if start != 0:
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start = (start // 0x200)
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if length != 0:
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sectors = (length // 0x200) + (1 if length % 0x200 else 0)
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self.info("Reading preloader...")
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if self.cdc.connected:
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if sectors == 0:
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buffer = self.readflash(type=1, start=0, length=0x4000, display=False)
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if len(buffer) != 0x4000:
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print("Error on reading boot1 area.")
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return
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if buffer[:9] == b'EMMC_BOOT':
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startbrlyt = unpack("<I", buffer[0x10:0x14])[0]
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if buffer[startbrlyt:startbrlyt + 5] == b"BRLYT":
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start = unpack("<I", buffer[startbrlyt + 0xC:startbrlyt + 0xC + 4])[0]
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st = buffer[start:start + 4]
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if st == b"MMM\x01":
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length = unpack("<I", buffer[start + 0x20:start + 0x24])[0]
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data = self.readflash(type=1, start=0, length=start + length, display=True)
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if len(data) != start + length:
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print("Warning, please rerun command, length doesn't match.")
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idx = data.find(b"MTK_BLOADER_INFO")
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if idx != -1:
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filename = data[idx + 0x1B:idx + 0x3D].rstrip(b"\x00").decode('utf-8')
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with open(os.path.join("logs", filename), "wb") as wf:
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wf.write(data[start:start + length])
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print("Done writing to " + os.path.join("logs", filename))
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with open(os.path.join("logs", "hdr_" + filename), "wb") as wf:
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wf.write(data[:start])
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print("Done writing to " + os.path.join("logs", "hdr_" + filename))
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return
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else:
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length = 0x40000
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self.readflash(type=1, start=0, length=length, display=True, filename=filename)
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print("Done")
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print("Error on getting preloader info, aborting.")
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else:
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self.readflash(type=1, start=start, length=length, display=True, filename=filename)
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print("Done")
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def boot2(self, start, length, filename):
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sectors = 0
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if start != 0:
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start = (start // 0x200)
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if length != 0:
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sectors = (length // 0x200) + (1 if length % 0x200 else 0)
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self.info("Reading boot2...")
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if self.cdc.connected:
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if sectors == 0:
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self.readflash(type=2, start=0, length=0x40000, display=True, filename=filename)
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print("Done")
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else:
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self.readflash(type=1, start=start, length=length, display=True, filename=filename)
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print("Done")
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def memread(self, start, length, filename=None):
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bytestoread = length
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addr = start
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data = b""
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pos = 0
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if filename is not None:
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wf = open(filename, "wb")
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while bytestoread > 0:
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size = min(bytestoread, 0x100)
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x4002))
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self.usbwrite(pack(">I", addr + pos))
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self.usbwrite(pack(">I", size))
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if filename is None:
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data += self.usbread(size)
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else:
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wf.write(self.usbread(size))
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bytestoread -= size
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pos += size
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self.info(f"{hex(start)}: " + hexlify(data).decode('utf-8'))
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if filename is not None:
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wf.close()
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return data
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def memwrite(self, start, data, filename=None):
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if filename is not None:
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rf = open(filename, "rb")
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bytestowrite = os.stat(filename).st_size
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else:
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if isinstance(data, str):
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data = bytes.fromhex(data)
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elif isinstance(data, int):
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data = pack("<I", data)
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bytestowrite = len(data)
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addr = start
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pos = 0
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while bytestowrite > 0:
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size = min(bytestowrite, 0x100)
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x4000))
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self.usbwrite(pack(">I", addr + pos))
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self.usbwrite(pack(">I", size))
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if filename is None:
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wdata = data[pos:pos + size]
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else:
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wdata = rf.read(size)
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bytestowrite -= size
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pos += size
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while len(wdata) % 4 != 0:
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wdata += b"\x00"
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self.usbwrite(wdata)
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if filename is not None:
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rf.close()
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ack = self.usbread(4)
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if ack == b"\xD0\xD0\xD0\xD0":
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return True
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else:
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return False
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def rpmb(self, start, length, filename, reverse=False):
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if not self.emmc_inited:
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self.init_emmc()
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if start == 0:
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start = 0
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else:
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start = (start // 0x100)
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if length == 0:
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sectors = 4 * 1024 * 1024 // 0x100
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else:
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sectors = (length // 0x100) + (1 if length % 0x100 else 0)
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self.info("Reading rpmb...")
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x1002))
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self.usbwrite(pack(">I", 0x1))
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# kick-wdt
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# self.usbwrite(pack(">I", 0xf00dd00d))
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# self.usbwrite(pack(">I", 0x3001))
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print_progress(0, 100, prefix='Progress:', suffix='Complete', bar_length=50)
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bytesread = 0
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old = 0
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bytestoread = sectors * 0x100
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with open(filename, "wb") as wf:
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for sector in range(start, sectors):
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x2000))
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self.usbwrite(pack(">H", sector))
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tmp = self.usbread(0x100)
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if reverse:
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tmp = tmp[::-1]
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if len(tmp) != 0x100:
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self.error("Error on getting data")
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return
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prog = sector / sectors * 100
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if round(prog, 1) > old:
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print_progress(prog, 100, prefix='Progress:',
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suffix='Complete, Sector:' + hex((sectors * 0x200) - bytestoread),
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bar_length=50)
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old = round(prog, 1)
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bytesread += 0x100
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size = min(bytestoread, len(tmp))
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wf.write(tmp[:size])
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bytestoread -= size
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print_progress(100, 100, prefix='Complete: ', suffix=filename, bar_length=50)
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print("Done")
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def keys(self, data=b"", otp=None, mode="dxcc"):
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# self.hwcrypto.disable_range_blacklist("cqdma",self.cmd_C8)
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keyinfo=""
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if self.setup.dxcc_base is not None and mode not in ["sej_aes_decrypt","sej_aes_encrypt","dxcc_sha256"]:
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rpmbkey = self.hwcrypto.aes_hwcrypt(btype="dxcc",mode="rpmb")
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rpmb2key = self.hwcrypto.aes_hwcrypt(btype="dxcc", mode="rpmb2")
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fdekey = self.hwcrypto.aes_hwcrypt(btype="dxcc",mode="fde")
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ikey = self.hwcrypto.aes_hwcrypt(btype="dxcc",mode="itrustee")
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platkey, provkey = self.hwcrypto.aes_hwcrypt(btype="dxcc",mode="prov")
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keyinfo+="\nKeys :\n-----------------------------------------\n"
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keyinfo+="RPMB: " + hexlify(rpmbkey).decode('utf-8')+"\n"
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keyinfo+="RPMB2: " + hexlify(rpmb2key).decode('utf-8') + "\n"
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keyinfo+="FDE : " + hexlify(fdekey).decode('utf-8')+"\n"
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keyinfo+="iTrustee: " + hexlify(ikey).decode('utf-8')+"\n"
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keyinfo+="Platform: " + hexlify(platkey).decode('utf-8')+"\n"
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keyinfo+="Provisioning: " + hexlify(provkey).decode('utf-8')+"\n"
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keyinfo+="\n"
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with open(os.path.join("logs", "rpmbkey.txt"), "wb") as wf:
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wf.write(hexlify(rpmbkey))
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with open(os.path.join("logs", "rpmbkey2.txt"), "wb") as wf:
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wf.write(hexlify(rpmbkey))
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with open(os.path.join("logs", "fdekey.txt"), "wb") as wf:
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wf.write(hexlify(fdekey))
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with open(os.path.join("logs", "itrustee_fbe.txt"), "wb") as wf:
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wf.write(hexlify(ikey))
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with open(os.path.join("logs", "platkey.txt"), "wb") as wf:
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wf.write(hexlify(platkey))
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with open(os.path.join("logs", "provkey.txt"), "wb") as wf:
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wf.write(hexlify(provkey))
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return [rpmbkey, fdekey, ikey, platkey, provkey], keyinfo
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elif self.setup.sej_base is not None and mode not in ["sej_aes_decrypt","sej_aes_encrypt","dxcc_sha256"]:
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rpmbkey = self.hwcrypto.aes_hwcrypt(mode="rpmb", data=data, otp=otp, btype="sej")
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keyinfo+="\nKeys :\n-----------------------------------------\n"
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keyinfo+="RPMB: " + hexlify(rpmbkey).decode('utf-8')
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keyinfo+="\n"
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with open(os.path.join("logs", "rpmbkey.txt"), "wb") as wf:
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wf.write(hexlify(rpmbkey))
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return rpmbkey, keyinfo
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if mode == "sej_aes_decrypt":
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dec_data = self.hwcrypto.aes_hwcrypt(mode="cbc", data=data, btype="sej", encrypt=False)
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keyinfo+="\n"
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keyinfo+="Data: " + hexlify(dec_data).decode('utf-8')
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keyinfo+="\n"
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return dec_data, keyinfo
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elif mode == "sej_aes_encrypt":
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enc_data = self.hwcrypto.aes_hwcrypt(mode="cbc", data=data, btype="sej", encrypt=True)
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keyinfo+="\n"
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keyinfo+="Data: " + hexlify(enc_data).decode('utf-8')
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keyinfo+="\n"
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return enc_data, keyinfo
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elif mode == "dxcc_sha256":
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sha256val = self.hwcrypto.aes_hwcrypt(mode="sha256", data=data, btype="dxcc")
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keyinfo+="\n"
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keyinfo+="SHA256: " + hexlify(sha256val).decode('utf-8')
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keyinfo+="\n"
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return sha256val, keyinfo
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return None, ""
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def reboot(self):
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print("Rebooting..")
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self.usbwrite(pack(">I", 0xf00dd00d))
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self.usbwrite(pack(">I", 0x3000))
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def getint(valuestr):
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if valuestr == '':
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return None
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try:
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return int(valuestr)
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except Exception as err:
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err = err
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try:
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return int(valuestr, 16)
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except Exception as err:
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err = err
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pass
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return 0
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cmds = {
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"rpmb": 'Dump rpmb',
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"preloader": 'Dump preloader',
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"boot2": 'Dump boot2',
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"reboot": 'Reboot phone',
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"memread": "Read memory [Example: memread 0 0x10]",
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"memwrite": "Write memory [Example: memwrite 0x200000 1122334455667788, memwrite 0x0 0x12345678, " +
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"memwrite 0x0 data.bin]",
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"keys": "Extract rpmb and fde key",
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"seccfg": "Generate unlock config"
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}
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info = "MTK Stage2 client (c) B.Kerler 2021"
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def showcommands():
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print(info)
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print("-----------------------------------\n")
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print("Available commands are:\n")
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for cmd in cmds:
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print("%20s" % (cmd) + ":\t" + cmds[cmd])
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print()
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def main():
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parser = argparse.ArgumentParser(description=info)
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subparsers = parser.add_subparsers(dest="cmd", help='Valid commands are: rpmb, preloader, boot2, memread, memwrite, keys')
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parser_rpmb = subparsers.add_parser("rpmb", help="Dump the rpmb")
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parser_rpmb.add_argument('--start', dest='start', type=str,
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help='Start offset to dump')
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parser_rpmb.add_argument('--length', dest='length', type=str,
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help='Max length to dump')
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parser_rpmb.add_argument('--reverse', dest='reverse', action="store_true",
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help='Reverse byte order (example: rpmb command)')
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parser_rpmb.add_argument('--filename', dest='filename', type=str,
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help='Read from / save to filename')
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parser_preloader = subparsers.add_parser("preloader", help="Dump the preloader")
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parser_preloader.add_argument('--start', dest='start', type=str,
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help='Start offset to dump')
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parser_preloader.add_argument('--length', dest='length', type=str,
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help='Max length to dump')
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parser_preloader.add_argument('--filename', dest='filename', type=str,
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help='Read from / save to filename')
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parser_boot2 = subparsers.add_parser("boot2", help="Dump boot2")
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parser_boot2.add_argument('--start', dest='start', type=str,
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help='Start offset to dump')
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parser_boot2.add_argument('--length', dest='length', type=str,
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help='Max length to dump')
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parser_boot2.add_argument('--filename', dest='filename', type=str,
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help='Read from / save to filename')
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parser_memread = subparsers.add_parser("memread", help="Read memory")
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parser_memread.add_argument(dest='start', type=str,
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help='Start offset to dump')
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parser_memread.add_argument(dest='length', type=str,
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help='Max length to dump')
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parser_memread.add_argument('--filename', dest='filename', type=str,
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help='Save to filename')
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parser_memwrite = subparsers.add_parser("memwrite", help="Write memory")
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parser_memwrite.add_argument(dest='start', type=str,
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help='Start offset to dump')
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parser_memwrite.add_argument('data', type=str,
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help='Data to write [hexstring, dword or filename]')
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parser_reboot = subparsers.add_parser("reboot", help="Reboot device")
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parser_seccfg = subparsers.add_parser("seccfg", help="Generate seccfg")
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parser_seccfg.add_argument('flag', type=str,
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help='Option for generating: unlock or lock')
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parser_seccfg.add_argument('--sw', dest='sw', action="store_true",
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help='Option for generating: sw or hw')
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parser_keys = subparsers.add_parser("keys", help="Write memory")
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parser_keys.add_argument('--otp', dest='otp', type=str,
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help='OTP for keys (dxcc,sej,gcpu)')
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parser_keys.add_argument('--mode', dest='mode', default=None, type=str,
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help='keymode (dxcc,sej,gcpu)')
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args = parser.parse_args()
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cmd = args.cmd
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if cmd not in cmds:
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showcommands()
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exit(0)
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if not os.path.exists("logs"):
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os.mkdir("logs")
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st2 = Stage2(args)
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if st2.connect():
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if not st2.preinit():
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exit(1)
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if cmd == "rpmb":
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if args.filename is None:
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filename = os.path.join("logs", "rpmb")
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else:
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filename = args.filename
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start = getint(args.start)
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length = getint(args.length)
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st2.rpmb(start, length, filename, args.reverse)
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elif cmd == "preloader":
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if args.filename is None:
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filename = os.path.join("logs", "preloader")
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else:
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filename = args.filename
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start = getint(args.start)
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length = getint(args.length)
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st2.preloader(start, length, filename=filename)
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elif cmd == "boot2":
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if args.filename is None:
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filename = os.path.join("logs", "boot2")
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else:
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filename = args.filename
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start = getint(args.start)
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length = getint(args.length)
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st2.boot2(start, length, filename=filename)
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elif cmd == "memread":
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if args.start is None:
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print("Option --start is needed")
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exit(0)
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if args.length is None:
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print("Option --length is needed")
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exit(0)
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start = getint(args.start)
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length = getint(args.length)
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st2.memread(start, length, args.filename)
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elif cmd == "memwrite":
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if args.start is None:
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print("Option --start is needed")
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exit(0)
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if args.data is None:
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print("Option --data is needed")
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exit(0)
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start = getint(args.start)
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if os.path.exists(args.data):
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filename=args.data
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data=None
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else:
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if "0x" in args.data:
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data=getint(args.data)
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else:
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data=args.data
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filename=None
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if st2.memwrite(start, data, filename):
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print(f"Successfully wrote data to {hex(start)}.")
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else:
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print(f"Failed to write data to {hex(start)}.")
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elif cmd == "keys":
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keyinfo=""
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data=b""
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if st2.hwcrypto.meid_addr:
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meid = st2.memread(st2.hwcrypto.meid_addr, 16)
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keyinfo+=f"MEID: {hexlify(meid).decode('utf-8')}\n"
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with open(os.path.join("logs", "meid.txt"), "wb") as wf:
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wf.write(hexlify(meid))
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if st2.hwcrypto.socid_addr:
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socid = st2.memread(st2.hwcrypto.socid_addr, 32)
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keyinfo += f"SOCID: {hexlify(socid).decode('utf-8')}\n"
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with open(os.path.join("logs", "socid.txt"), "wb") as wf:
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wf.write(hexlify(socid))
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if st2.setup.sej_base or args.mode == "sej":
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data = meid
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# if not args.otp:
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# print("Option --otp is needed")
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# exit(0)
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if args.mode == "sej_aes_decrypt" or args.mode == "sej_aes_encrypt":
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if not args.data:
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print("Option --data is needed")
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exit(0)
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data = bytes.fromhex(args.data)
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# otp_hisense=bytes.fromhex("486973656E736500000000000000000000000000000000000000000000000000")
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# st2.jump(0x223449)
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keys, keyinfo=st2.keys(data=data, mode=args.mode, otp=args.otp)
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print(keyinfo)
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with open("keys.txt","w") as wf:
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wf.write(keyinfo)
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print("Wrote keys to keys.txt")
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elif cmd == "reboot":
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st2.reboot()
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elif cmd == "seccfg":
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if args.flag not in ["unlock","lock"]:
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print("Valid flags are: unlock, lock")
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sys.exit(1)
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"""
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LKS_DEFAULT = 0x01
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LKS_MP_DEFAULT = 0x02
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LKS_UNLOCK = 0x03
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LKS_LOCK = 0x04
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LKS_VERIFIED = 0x05
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LKS_CUSTOM = 0x06
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"""
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"""
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LKCS_UNLOCK = 0x01
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LKCS_LOCK = 0x02
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"""
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"""
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SBOOT_RUNTIME_OFF = 0
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SBOOT_RUNTIME_ON = 1
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"""
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if args.flag=="unlock":
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lock_state = 3
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critical_lock_state = 1
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elif args.flag=="lock":
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lock_state = 1
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critical_lock_state = 0
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with open("seccfg.bin", "wb") as wf:
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seccfg_ver = 4
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seccfg_size = 0x3C
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sboot_runtime = 0
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seccfg_data = pack("<IIIIIII", 0x4D4D4D4D, seccfg_ver, seccfg_size, lock_state,
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critical_lock_state, sboot_runtime, 0x45454545)
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dec_hash = hashlib.sha256(seccfg_data).digest()
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if args.sw:
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enc_hash = st2.hwcrypto.sej.sej_sec_cfg_sw(dec_hash, True)
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else:
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enc_hash = st2.hwcrypto.sej.sej_sec_cfg_hw(dec_hash,True)
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data = seccfg_data + enc_hash
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data += b"\x00" * (0x200 - len(data))
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wf.write(data)
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print("Successfully wrote seccfg to seccfg.bin. You need to write seccfg.bin to partition seccfg.")
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st2.close()
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if __name__ == "__main__":
|
|
main()
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