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binwalk
Commit fd62df46 by devttys0
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Improved false-positive prone signatures, fixed python3 bug

parent f1d60527
Showing with 23 additions and 152 deletions
src/binwalk/core/parser.py
......@@ -168,7 +168,8 @@ class MagicParser(object):
line_count = 0
try:
for line in open(file_name, 'r').readlines():
for line in open(file_name, 'rb').readlines():
line = bytes2str(line)
line_count += 1
# Check if this is the first line of a signature entry
......
src/binwalk/core/plugin.py
......@@ -117,7 +117,10 @@ class Plugins(object):
def _call_plugins(self, callback_list, arg):
for callback in callback_list:
try:
if arg:
callback(arg)
else:
callback()
except KeyboardInterrupt as e:
raise e
except Exception as e:
......@@ -231,10 +234,10 @@ class Plugins(object):
sys.stderr.write("WARNING: Failed to load plugin module '%s': %s\n" % (module, str(e)))
def pre_scan_callbacks(self, obj):
return self._call_plugins(self.pre_scan, obj)
return self._call_plugins(self.pre_scan, None)
def post_scan_callbacks(self, obj):
return self._call_plugins(self.post_scan, obj)
return self._call_plugins(self.post_scan, None)
def scan_callbacks(self, obj):
return self._call_plugins(self.scan, obj)
......
src/binwalk/modules/hexdiff.py
......@@ -84,37 +84,6 @@ class HexDiff(Module):
return True
return False
def _print_block_hex(self, alt_text="*"):
if self._color_filter(self.block_hex):
desc = self.block_hex
self.printed_alt_text = False
elif not self.printed_alt_text:
desc = "%s" % alt_text
self.printed_alt_text = True
self.result(description=desc)
self.block_hex = ""
return True
def _build_block(self, c, highlight=None):
if highlight == self.ALL_DIFF:
self.block_hex += self.colorize(c, color="red")
elif highlight == self.ALL_SAME:
self.block_hex += self.colorize(c, color="green")
elif highlight == self.SOME_DIFF:
self.block_hex += self.colorize(c, color="blue")
else:
self.block_hex += c
def _build_header(self, files, block_size):
header = "OFFSET" + (" " * 6) + files[0].name
for i in range(1, len(files)):
header += " " * ((block_size * 3) + 2 + block_size + 8 - len(files[i-1].name))
header += files[i].name
return header
def init(self):
block = self.config.block
if not block:
......@@ -134,123 +103,6 @@ class HexDiff(Module):
self.colorize = self._no_colorize
def run(self):
i = 0
total = 0
data = {}
delim = '/'
self.block_hex = ""
self.printed_alt_text = False
offset = self.config.offset
size = self.config.length
block = self.config.block
self.header()
if not block:
block = self.DEFAULT_BLOCK_SIZE
# If negative offset, then we're going that far back from the end of the file
if offset < 0:
size = offset * -1
#if common.BlockFile.READ_BLOCK_SIZE < block:
# read_block_size = block
#else:
# read_block_size = common.BlockFile.READ_BLOCK_SIZE
read_block_size = common.BlockFile.DEFAULT_BLOCK_READ_SIZE
# BlockFile handles calculation of negative offsets, if one was specified
offset = self.config.target_files[0].offset
size = self.config.target_files[0].length
while total < size:
i = 0
files_finished = 0
for fp in self.config.target_files:
(ddata, dlen) = fp.read_block()
data[fp.name] = ddata
if not ddata or dlen == 0:
files_finished += 1
if files_finished == len(self.config.target_files):
break
while i < read_block_size and (total+i) < size:
diff_same = {}
alt_text = "*" + " " * 8
self._build_block("%.08X " % (total + i + offset))
# For each byte in this block, is the byte the same in all files, the same in some files, or different in all files?
for j in range(0, block):
byte_list = []
try:
c = data[self.config.target_files[0].name][j+i]
except:
c = None
for f in self.config.target_files:
try:
c = data[f.name][j+i]
except Exception as e:
c = None
if c not in byte_list:
byte_list.append(c)
if len(byte_list) == 1:
diff_same[j] = self.ALL_SAME
elif len(byte_list) == len(self.config.target_files):
diff_same[j] = self.ALL_DIFF
else:
diff_same[j] = self.SOME_DIFF
for index in range(0, len(self.config.target_files)):
if self.terse and index > 0:
break
f = self.config.target_files[index]
alt_text += " " * (3 + (3 * block) + 3 + block + 3)
alt_text += delim
for j in range(0, block):
try:
self._build_block("%.2X " % ord(data[f.name][j+i]), highlight=diff_same[j])
except KeyboardInterrupt as e:
raise e
except Exception as e:
self._build_block(" ")
if (j+1) == block:
self._build_block(" |")
for k in range(0, block):
try:
if data[f.name][k+i] in string.printable and data[f.name][k+i] not in string.whitespace:
self._build_block(data[f.name][k+i], highlight=diff_same[k])
else:
self._build_block('.', highlight=diff_same[k])
except:
self._build_block(' ')
if index == len(self.config.target_files)-1 or (self.terse and index == 0):
self._build_block("|")
else:
self._build_block('| %s ' % delim)
if self._print_block_hex(alt_text=alt_text[:-1].strip()):
if delim == '\\':
delim = '/'
else:
delim = '\\'
i += block
total += read_block_size
self.footer()
return True
src/magic/filesystems
......@@ -572,8 +572,13 @@
# Simple file system found in Foscam camera firmware
0 beshort 0xbd9a Foscam WebUI filesystem,
>2 leshort x checksum: 0x%X,
>16 lelong <1 invalid first file name length,
>16 lelong <3 invalid first file name length,
>16 lelong >127 invalid first file name length,
>20 byte 0 invalid first file name,
>20 byte !0x2E
>>20 byte !0x2F
>>>20 byte <65 invalid first file name,
>>>20 byte >122 invalid first file name,
>20 byte x first file name: {raw-replace}
>16 lelong x {raw-string-length:%d}
>20 string x {raw-string:%s}
......
src/magic/firmware
......@@ -419,15 +419,25 @@
>8 lelong x size: %d
0 belong 0x4D544443 NSP firmware header, big endian,
>16 belong <1 invalid
>16 belong x header size: %d,
>20 belong <1 invalid
>20 belong x image size: %d,
>20 belong x {file-size:%d}
>4 belong <1 invalid
>4 belong x kernel offset: %d,
>12 belong <1 invalid
>12 belong x header version: %d,
0 lelong 0x4D544443 NSP firmware header, little endian,
>16 lelong <1 invalid
>16 lelong x header size: %d,
>20 lelong <1 invalid
>20 lelong x image size: %d,
>20 lelong x {file-size:%d}
>4 lelong <1 invalid
>4 lelong x kernel offset: %d,
>12 lelong <1 invalid
>12 lelong x header version: %d,
# http://www.openwiz.org/wiki/Firmware_Layout#Beyonwiz_.wrp_header_structure
......
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