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Add the ability to run a customization script before starting the emulation. #7

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assafcarlsbad merged 1 commit into from
Nov 15, 2020
Merged

Add the ability to run a customization script before starting the emulation. #7

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9 changes: 7 additions & 2 deletions efi_fuzz.py
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,7 @@ def validate_crash(uc, err, _input, persistent_round, user_data):
if ex != unicornafl.UC_AFL_RET_CALLED_TWICE:
raise

def main(target_binary, nvram_file, var_name, input_file, output, end, timeout, sanitize, track_uninitialized, extra_modules):
def main(target_binary, nvram_file, var_name, input_file, output, end, timeout, sanitize, track_uninitialized, custom_script, extra_modules):
enable_trace = output != 'off'

# Listify extra modules.
Expand Down Expand Up @@ -122,6 +122,10 @@ def main(target_binary, nvram_file, var_name, input_file, output, end, timeout,
if track_uninitialized:
enable_uninitialized_memory_tracker(ql)

if custom_script:
# execfile
exec(open(custom_script).read())

# okay, ready to roll.
try:
ql.run(end=end, timeout=timeout)
Expand All @@ -147,9 +151,10 @@ def main(target_binary, nvram_file, var_name, input_file, output, end, timeout,
parser.add_argument("-o", "--output", help="Trace execution for debugging purposes", choices=['trace', 'disasm', 'debug', 'off'], default='off')
parser.add_argument("-n", "--no-sanitize", help="Disable memory sanitizer", action='store_true', default=False)
parser.add_argument("-u", "--track-uninitialized", help="Track uninitialized memory (experimental!)", action='store_true', default=False)
parser.add_argument("-c", "--custom-script", help="Script to further customize the environment")
parser.add_argument("-x", "--extra-modules", help="Extra modules to load", nargs='+')

args = parser.parse_args()

sanitize = not args.no_sanitize
main(args.target, args.nvram, args.varname, args.infile, args.output, args.end, args.timeout, sanitize, args.track_uninitialized, args.extra_modules)
main(args.target, args.nvram, args.varname, args.infile, args.output, args.end, args.timeout, sanitize, args.track_uninitialized, args.custom_script, args.extra_modules)