| 1 | import argparse |
| 2 | import shutil |
| 3 | import sys |
| 4 | import os |
| 5 | |
| 6 | |
| 7 | class MetadataTestAssistant: |
| 8 | BASIC_PROLOGUE = \ |
| 9 | '''/* CTF 1.8 */ |
| 10 | |
| 11 | typealias integer { size = 8; align = 8; signed = false; base = 10; } := uint8_t; |
| 12 | typealias integer { size = 32; align = 8; signed = false; base = hex; } := uint32_t; |
| 13 | |
| 14 | trace { |
| 15 | major = 0; |
| 16 | minor = 0; |
| 17 | uuid = "2a6422d0-6cee-11e0-8c08-cb07d7b3a564"; |
| 18 | byte_order = le; |
| 19 | packet.header := struct { |
| 20 | uint32_t magic; |
| 21 | uint8_t uuid[16]; |
| 22 | }; |
| 23 | }; |
| 24 | |
| 25 | ''' |
| 26 | |
| 27 | def __init__(self): |
| 28 | self._actions = { |
| 29 | 'prepare': self._prepare, |
| 30 | 'clean': self._clean, |
| 31 | } |
| 32 | |
| 33 | @staticmethod |
| 34 | def _perror(str): |
| 35 | print('Error: {}'.format(str), file=sys.stderr) |
| 36 | sys.exit(1) |
| 37 | |
| 38 | def _parse_args(self): |
| 39 | ap = argparse.ArgumentParser() |
| 40 | |
| 41 | ap.add_argument('-s', '--size', action='store', metavar='SIZE', |
| 42 | type=int, required=True, help='size') |
| 43 | ap.add_argument('action', metavar='ACTION', action='store', |
| 44 | help='action') |
| 45 | |
| 46 | # parse args |
| 47 | args = ap.parse_args() |
| 48 | |
| 49 | # validate size |
| 50 | if args.size < 1: |
| 51 | MetadataTestAssistant._perror('wrong size: {}'.format(args.size)) |
| 52 | |
| 53 | return args |
| 54 | |
| 55 | def _get_what(self): |
| 56 | return self.what.format(size=self.size) |
| 57 | |
| 58 | def _prepare(self): |
| 59 | # make sure everything is clean first |
| 60 | self._clean() |
| 61 | |
| 62 | print('Preparing test for {}'.format(self._get_what())) |
| 63 | |
| 64 | # make test directory |
| 65 | os.mkdir(self._trace_dir_path) |
| 66 | |
| 67 | # open and write metadata file |
| 68 | with open(self._metadata_path, 'w') as f: |
| 69 | self.write_metadata(f) |
| 70 | |
| 71 | def _clean(self): |
| 72 | print('Cleaning up test for {}'.format(self._get_what())) |
| 73 | |
| 74 | try: |
| 75 | shutil.rmtree(self._trace_dir_path, ignore_errors=True) |
| 76 | except Exception as e: |
| 77 | # ignore |
| 78 | pass |
| 79 | |
| 80 | def _do_action(self): |
| 81 | if self._action not in self._actions: |
| 82 | msg = 'invalid action: "{}"'.format(self._action) |
| 83 | MetadataTestAssistant._perror(msg) |
| 84 | |
| 85 | self._actions[self._action]() |
| 86 | |
| 87 | @property |
| 88 | def size(self): |
| 89 | return self._size |
| 90 | |
| 91 | def main(self): |
| 92 | args = self._parse_args() |
| 93 | self._size = args.size |
| 94 | self._trace_dir_path = 'trace-{}'.format(args.size) |
| 95 | self._metadata_path = os.path.join(self._trace_dir_path, 'metadata') |
| 96 | self._action = args.action |
| 97 | |
| 98 | self._do_action() |