1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
#!/usr/bin/python
# Copyright (c) 2010 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Makes sure that all EXE and DLL files in the provided directory were built
correctly.
Currently this tool will check that binaries were built with /NXCOMPAT and
/DYNAMICBASE set.
"""
import os
import optparse
import sys
# Find /third_party/pefile based on current directory and script path.
sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..',
'third_party', 'pefile'))
import pefile
PE_FILE_EXTENSIONS = ['.exe', '.dll']
DYNAMICBASE_FLAG = 0x0040
NXCOMPAT_FLAG = 0x0100
# Please do not add your file here without confirming that it indeed doesn't
# require /NXCOMPAT and /DYNAMICBASE. Contact cpu@chromium.org or your local
# Windows guru for advice.
EXCLUDED_FILES = ['chrome_frame_mini_installer.exe',
'mini_installer.exe',
'wow_helper.exe']
def IsPEFile(path):
return (os.path.isfile(path) and
os.path.splitext(path)[1].lower() in PE_FILE_EXTENSIONS and
os.path.basename(path) not in EXCLUDED_FILES)
def main(options, args):
directory = args[0]
pe_total = 0
pe_passed = 0
for file in os.listdir(directory):
path = os.path.abspath(os.path.join(directory, file))
if not IsPEFile(path):
continue
pe = pefile.PE(path, fast_load=True)
pe_total = pe_total + 1
success = True
# Check for /DYNAMICBASE.
if pe.OPTIONAL_HEADER.DllCharacteristics & DYNAMICBASE_FLAG:
if options.verbose:
print "Checking %s for /DYNAMICBASE... PASS" % path
else:
success = False
print "Checking %s for /DYNAMICBASE... FAIL" % path
# Check for /NXCOMPAT.
if pe.OPTIONAL_HEADER.DllCharacteristics & NXCOMPAT_FLAG:
if options.verbose:
print "Checking %s for /NXCOMPAT... PASS" % path
else:
success = False
print "Checking %s for /NXCOMPAT... FAIL" % path
# Update tally.
if success:
pe_passed = pe_passed + 1
print "Result: %d files found, %d files passed" % (pe_total, pe_passed)
if pe_passed != pe_total:
sys.exit(1)
if __name__ == '__main__':
usage = "Usage: %prog [options] DIRECTORY"
option_parser = optparse.OptionParser(usage=usage)
option_parser.add_option("-v", "--verbose", action="store_true",
default=False, help="Print debug logging")
options, args = option_parser.parse_args()
if not args:
option_parser.print_help()
sys.exit(0)
main(options, args)
|
