142 lines
4.4 KiB
Python
Executable File
142 lines
4.4 KiB
Python
Executable File
#! /usr/bin/env python3
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from random import randint
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import binascii
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import ctypes
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import logging
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import os
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import subprocess
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logging.getLogger(__name__)
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class Sins:
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seed = bytes()
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def __init__(self, *, parent: str, seed: str=str(), run_dir: str=str()):
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self.parent = ctypes.CDLL(parent)
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self.parent.gen_fork.restype = ctypes.c_int
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self.parent.gen_fork.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
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if seed:
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with open(seed, 'rb') as seed_file:
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self.seed = seed_file.read()
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try:
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os.mkdir(run_dir)
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except FileNotFoundError or PermissionError:
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run_dir = os.path.dirname(self.seed)
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except FileExistsError:
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pass
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self.run_dir = run_dir
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child = self.generation(
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parent=self.parent,
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scrap=self.seed,
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cwd=self.run_dir)
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if child:
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logging.info(child)
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def scrap_recent(self, *, run_dir: str)->str:
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scraps = sorted(os.listdir(run_dir))
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if scraps:
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return os.path.join(run_dir, scraps[-1])
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return None
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def generation(self, *, parent: ctypes.CDLL, scrap: bytes, cwd: str):
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offset = randint(0, len(scrap))
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flip = randint(0, 255)
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scrap_len = len(scrap)
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logging.info('scrap_length [{}]'.format(scrap_len))
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logging.info('scrap\n{}'.format(binascii.b2a_hex(scrap)))
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status = parent.gen_fork(scrap, scrap_len)
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logging.info('status {}'.format(status))
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logging.info('scrap_length [{}]'.format(scrap_len))
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logging.info('scrap\n{}'.format(binascii.b2a_hex(scrap)))
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def hex_dumps(scrap_dir):
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scrap_dir = os.path.abspath(scrap_dir)
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dump_dir = os.path.join(scrap_dir, 'hex')
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if not os.path.isdir(dump_dir):
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os.mkdir(dump_dir)
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scraps = os.listdir(scrap_dir)
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for scrap in scraps:
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scrap_path = os.path.join(scrap_dir, scrap)
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hex_name = '{}.hex'.format(scrap)
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hex_path = os.path.join(dump_dir, hex_name)
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if os.path.isfile(scrap_path):
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with open(scrap_path, 'rb') as file_in:
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with open(hex_path, 'w') as file_out:
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binary = bytes(file_in.read())
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for each in binary:
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file_out.writelines('\'\\x{:02X}\',\n'.format(each))
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if __name__ == '__main__':
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import argparse
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import sys
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parser = argparse.ArgumentParser(
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description='position independent code (PIC) mutation experiment.')
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parser.add_argument('--verbose', '-v', action='count')
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parser.add_argument('-build', action='store_true',
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help='build parent and seed PIC image, exit.')
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parser.add_argument('-provision', action='store_true',
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help='provision ubuntu for run, exit.')
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parser.add_argument('-logfile', help='log to file.')
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parser.add_argument('-seed', default='build/seed.asm.2.o',
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help='path to PIC image.')
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parser.add_argument('-parent', default='build/libgeneration.so',
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help='path to generation lib.')
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parser.add_argument('-dir', default='sandbox',
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help='path to execution directory.')
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parser.add_argument('-dumps', action='store_true',
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help='dump hex values of scraps in directory, exit.')
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args = parser.parse_args()
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logger = logging.getLogger()
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logger.setLevel(logging.DEBUG) if args.verbose else logger.setLevel(logging.INFO)
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formatter = logging.Formatter('# %(filename)s:%(lineno)s\n%(message)s')
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stream_handler = logging.StreamHandler()
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stream_handler.setFormatter(formatter)
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logger.addHandler(stream_handler)
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if args.logfile:
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file_handler = logging.FileHandler(args.logfile, 'a')
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file_handler.setFormatter(formatter)
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logger.addHandler(file_handler)
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logging.info(args)
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if args.provision:
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provision = ['sudo', 'sh', 'provision-ubuntu.sh']
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prov_proc = subprocess.run(provision)
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os.environ['CC'] = 'clang'
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waf = [sys.executable, 'waf.py', 'configure']
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waf_proc = subprocess.run(waf)
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elif args.build:
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waf = [sys.executable, 'waf.py', 'build']
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waf_proc = subprocess.run(waf)
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logging.info(waf_proc.stdout)
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elif args.dumps:
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hex_dumps(args.dir)
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else:
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sins = Sins(parent=args.parent, seed=args.seed, run_dir=args.dir)
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