169 lines
4.0 KiB
Python
Executable File
169 lines
4.0 KiB
Python
Executable File
#!/usr/bin/python
|
|
#
|
|
# Multi-protocol test
|
|
#
|
|
# Input of this script:
|
|
#
|
|
# - A number on the commandline of stuff to test
|
|
# - A list of files on stdin to be used
|
|
|
|
import os
|
|
import sys
|
|
import string
|
|
import commands
|
|
|
|
TempFileList = "scyther-blap.tmp"
|
|
TempFileTuples = "scyther-blip.tmp"
|
|
|
|
TupleProgram = "./tuples.py"
|
|
|
|
ScytherProgram = "../src/scyther"
|
|
ScytherDefaults = "--summary"
|
|
ScytherMethods = "-m1 -a"
|
|
ScytherBounds = "-r4 -l40"
|
|
|
|
ReportInterval = 10
|
|
|
|
ScytherArgs = ScytherDefaults + " " + ScytherMethods + " " + ScytherBounds
|
|
CommandPrefix = ScytherProgram + " " + ScytherArgs
|
|
|
|
ProtocolClaims = {}
|
|
|
|
# ***********************
|
|
# LIBS
|
|
# ***********************
|
|
|
|
# ScytherEval
|
|
#
|
|
# Take the list of protocols in plist, and give them to Scyther.
|
|
# Returns a dictionary of claim -> bool; where 1 means that it is
|
|
# correct, and 0 means that it is false (i.e. there exists an attack)
|
|
def ScytherEval (plist):
|
|
linelist = " ".join(plist)
|
|
|
|
commandline = "cat " + linelist + " | " + CommandPrefix
|
|
scout = commands.getoutput(commandline)
|
|
lines = scout.splitlines()
|
|
results = {}
|
|
for line in lines:
|
|
data = line.split()
|
|
if data[0] == 'claim':
|
|
claim = " ".join(data[1:4])
|
|
tag = data[6]
|
|
value = -1
|
|
if tag == 'failed:':
|
|
value = 0
|
|
if tag == 'correct:':
|
|
value = 1
|
|
if value == -1:
|
|
print "Scyther parse error for the input line: " + commandline
|
|
print "On the output line: " + line
|
|
results[claim] = value
|
|
return results
|
|
|
|
# ScytherEval1
|
|
#
|
|
# The above, but do the preprocessing for a single protocol
|
|
def ScytherEval1 (protocol):
|
|
results = ScytherEval ([protocol])
|
|
ProtocolClaims.update (results)
|
|
|
|
|
|
|
|
|
|
# ***********************
|
|
# MAIN CODE
|
|
# ***********************
|
|
|
|
# Pass std input to temporary file (list of protocol files)
|
|
#----------------------------------------------------------------------
|
|
#
|
|
# Determines:
|
|
# TupleWidth
|
|
# ProtocolCount
|
|
# Protocol[0..count-1]
|
|
#
|
|
# Furthermore, TempFileList is created.
|
|
|
|
TupleWidth = sys.argv[1]
|
|
|
|
# Read stdin into list and count, send to file
|
|
loop = 1
|
|
ProtocolCount = 0
|
|
Protocol = []
|
|
outp = open(TempFileList, 'w')
|
|
while loop:
|
|
line = sys.stdin.readline()
|
|
if line != '':
|
|
# not the end of the input
|
|
cleanline = string.strip(line)
|
|
if cleanline != '':
|
|
# not a blank line
|
|
Protocol.append(cleanline)
|
|
ProtocolCount = ProtocolCount + 1
|
|
outp.write(line)
|
|
else:
|
|
# end of the input
|
|
loop = 0
|
|
outp.close()
|
|
print "Evaluating tuples of", TupleWidth, "for", ProtocolCount, "protocols."
|
|
|
|
# Caching of single-protocol results for speed gain.
|
|
#----------------------------------------------------------------------
|
|
#
|
|
# The script first computes the singular results for all the protocols
|
|
# and stores this in an array, or something like that.
|
|
|
|
i = 0
|
|
while i < ProtocolCount:
|
|
ScytherEval1 ( Protocol[i] )
|
|
i = i + 1
|
|
print "Evaluated single results."
|
|
|
|
# Computation of combined list.
|
|
#----------------------------------------------------------------------
|
|
#
|
|
# We use the tuple script to generate the list of tuples we need.
|
|
# We use a temporary file (again) to store that list.
|
|
# This requires that 'tuples.py' is in the same directory.
|
|
|
|
lstatus=os.system(TupleProgram + ' ' + TupleWidth + ' <' + TempFileList + ' >' + TempFileTuples)
|
|
|
|
# Testing of protocol tuples
|
|
#----------------------------------------------------------------------
|
|
#
|
|
# We take the list of tuples and test each combination.
|
|
|
|
print
|
|
inp = open(TempFileTuples, 'r')
|
|
processed = 0
|
|
newattacks = 0
|
|
for tline in inp:
|
|
#
|
|
# Get the next tuple
|
|
#
|
|
protocols = tline.split()
|
|
results = ScytherEval ( protocols )
|
|
#
|
|
# Now we have the results for this combination.
|
|
# Check whether any of these claims is 'newly false'
|
|
#
|
|
for claim,value in results.items():
|
|
if value == 0:
|
|
# Apparently this claim is false now (there is
|
|
# an attack)
|
|
if ProtocolClaims[claim] == 1:
|
|
# Wooh! It was correct before
|
|
newattacks = newattacks + 1
|
|
print claim
|
|
|
|
# Next!
|
|
processed = processed + 1
|
|
if (processed % ReportInterval) == 0:
|
|
print "Checked", processed, "sofar."
|
|
|
|
print
|
|
print "Processed", processed,"tuple combinations in total."
|
|
|
|
inp.close()
|