pyfastboot 1.3.9

A pure python implementation of the Android Fastboot protocols

pyfastboot

This is a modified version for specific project usage - for example, service permission granting program for all Nokia phones.

For ADB implementation, see adb_shell.

This repository contains a pure-python implementation of the Fastboot protocols, using libusb1 for USB communications.

This is a complete replacement and rearchitecture of the Android project's ADB and fastboot code

This code is mainly targeted to users that need to communicate with Android devices in an automated fashion, such as in automated testing.

Using as standalone tool

Once installed, one new binary should be available: pyfastboot.

Running ./make_tools.py creates one file: fastboot.zip. They can be run similar to native fastboot via the python interpreter:

python fastboot.zip oem device-info

Using as a Python Library

FIHSW model: See this file as reference

HMDSW model get permission code (note the dk_calculation module is unavailable yet).

from pyfastboot import fastboot
from io import StringIO
import dk_calculation
import sys

def _InfoCb(message):
    if not message.message:
        return
    print(message.message.decode('utf-8'))

def getsecver(device):
    tmp = sys.stdout
    result = StringIO()
    sys.stdout = result
    device.Oem('getsecurityversion', info_cb=_InfoCb)
    sys.stdout = tmp
    del tmp
    return result.getvalue().splitlines()

def getperm(device):
    tmp = sys.stdout
    result = StringIO()
    sys.stdout = result
    device.Oem('getpermissions', info_cb=_InfoCb)
    sys.stdout = tmp
    del tmp
    return result.getvalue().splitlines()

def authcode(device):
    return device.HmdAuthStart().decode('utf-8')

ThisDevice = fastboot.FastbootCommands()
ThisDevice.ConnectDevice()

# Essential Informations will be stored at these 3 variables.

product = ThisDevice.Getvar('product').decode('utf-8')
secver = getsecver(ThisDevice)[0]
psn = ThisDevice.Getvar('serialno').decode('utf-8')

# 1st permission type is flash
ThisDevice.HmdEnableAuth(1, dk_calculation.getresult(prjcode=product, serialnumber=psn, securityversion=secver, auth_code=authcode(ThisDevice))

# Check Enabled Permissions
print(getperm(ThisDevice))

# 3rd permission type is repair
ThisDevice.HmdEnableAuth(3, dk_calculation.getresult(prjcode=product, serialnumber=psn, securityversion=secver, auth_code=authcode(ThisDevice))

# Check Enabled Permissions
print(getperm(ThisDevice))

Pros

• Simpler code due to use of libusb1 and Python.
• API can be used by other Python code easily.
• Errors are propagated with tracebacks, helping debug connectivity issues.
• No daemon outliving the command.
• Can be packaged as standalone zips that can be run independent of the CPU architecture (e.g. x86 vs ARM).

Cons

• Technically slower due to Python, mitigated by no daemon.
• Only one command per device at a time.

Dependencies

• libusb1 (1.0.16+)
• python-libusb1 (1.2.0+)
• fastboot.zip (optional):
  • python-progressbar (2.3+)

History

1.3.9

• Fixed the dependencies issue.

1.3.8

• Added support for Unisoc "flashing unlock_bootloader" function (UnisocUnlockBootloader())
• Added support for vbmeta processing
• Fixed issue of GetIdentifierToken function

1.3.6

• Fixed dependencies bug
• Added initial support of GetIdentifierToken function for HTC and Unisoc models (GetIdentifierToken())

1.3.5

• Renaming it into pyfastboot
• Add Nokia, Motorola and Xiaomi specific OEM command functions