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cyberflex-shell
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Add feature to optionally dump detected files (note: reading of record oriented files is not correct) 

git-svn-id: svn+ssh://localhost/home/henryk/svn/cyberflex-shell/trunk@257 f711b948-2313-0410-aaa9-d29f33439f0b
This commit is contained in:
hploetz 2008-05-25 00:16:38 +00:00
parent 4cd1aa901c
commit a236a21714
1 changed files with 69 additions and 4 deletions
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73
brutefid.py
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@ -3,13 +3,15 @@
import utils, cards, TLV_utils, sys, binascii, time, traceback
OPTIONS = "m:x:d"
LONG_OPTIONS = ["min-fid", "max-fid", "with-dirs"]
OPTIONS = "m:x:dD"
LONG_OPTIONS = ["min-fid", "max-fid", "with-dirs", "dump-contents"]
STATUS_INTERVAL = 10
SPINNER = ['/','-','\\','|']
results_dir = {}
results_file = {}
contents_file = {}
top_level = None
start_time = time.time()
loop = 0
@ -17,6 +19,20 @@ loop = 0
min_fid = 0
max_fid = 0xffff
with_dirs = False
dump_contents = False
def dump(data):
print "Dump following (%i bytes)" % (len(data))
print utils.hexdump(data)
try:
print "Trying TLV parse:"
print TLV_utils.decode(data, tags=card.TLV_OBJECTS, context = card.DEFAULT_CONTEXT)
print "TLV parsed successfully"
except (SystemExit, KeyboardInterrupt):
raise
except:
print "TLV error"
pass
if __name__ == "__main__":
c = utils.CommandLineArgumentHelper()
@ -29,6 +45,8 @@ if __name__ == "__main__":
max_fid = int(value, 16)
elif option in ("-d","--with-dirs"):
with_dirs = not with_dirs
elif option in ("-D", "--dump-contents"):
dump_contents = not dump_contents
if len(arguments) > 0:
top_level = ("".join( ["".join(e.split()) for e in arguments] )).split("/")
@ -84,13 +102,36 @@ if __name__ == "__main__":
else:
card.select_application(e)
print >>sys.stderr, "\rDir %04X -> %02X%02X %s" % (fid, result.sw1, result.sw2, status),
print >>sys.stderr, "\rDir %04X -> %02X%02X %s " % (fid, result.sw1, result.sw2, status),
result = card.open_file(data)
if card.check_sw(result.sw):
results_file[fid] = result
if dump_contents:
contents, sw = card.read_binary_file()
contents_result = [sw]
if sw == '\x69\x81': # Command incompatible with file structure, retry read_record
# FIXME this logic for reading records is not correct
print >>sys.stderr, "\rFile %04X -> %02X%02X %s Reading records... " % (fid, result.sw1, result.sw2, status),
records = {}
for i in range(256):
if i%STATUS_INTERVAL == 0:
print >>sys.stderr, "\rFile %04X -> %02X%02X %s Reading records... %s" % (fid, result.sw1, result.sw2, status,
SPINNER[ (i/STATUS_INTERVAL) % len(SPINNER) ],
),
records[i] = card.read_record(i, 4, 0)
contents_result.append(records)
elif sw == '\x69\x82': # Security status not satisfied
pass
elif sw == '\x90\x00': # Command execution successful
contents_result.append(contents)
elif len(contents) > 0: # Something was returned, assume successful execution
contents_result.append(contents)
contents_file[fid] = contents_result
print >>sys.stderr, "\rFile %04X -> %02X%02X %s" % (fid, result.sw1, result.sw2, status),
print >>sys.stderr, "\rFile %04X -> %02X%02X %s " % (fid, result.sw1, result.sw2, status),
except (SystemExit, KeyboardInterrupt):
raise
except:
@ -117,4 +158,28 @@ if __name__ == "__main__":
if len(result.data) > 0:
print utils.hexdump(result.data)
print TLV_utils.decode(result.data,tags=card.TLV_OBJECTS)
if contents_file.has_key( fid ):
contents_result = contents_file[fid]
if contents_result[0] == '\x69\x81':
print "Record-oriented file"
elif contents_result[0] == '\x69\x82':
print "Can't read file"
elif len(contents_result) > 1:
if contents_result[0] == '\x90\x00':
print "Transparent file"
else:
print "Strange file (%02X%02X)" % (ord(contents_result[0][0]), ord(contents_result[0][1]))
if len(contents_result) > 1:
if isinstance(contents_result[1], str):
dump(contents_result[1])
else:
for index, data in contents_result[1].items():
if len(data) > 0:
print "Record %i:" % index
dump(data)
print
print