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attackscriptgen.py
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attackscriptgen.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright (c) 2013-2016, NewAE Technology Inc
# All rights reserved.
#
#
# Find this and more at newae.com - this file is part of the chipwhisperer
# project, http://www.assembla.com/spaces/chipwhisperer
#
# This file is part of chipwhisperer.
#
# chipwhisperer is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# chipwhisperer is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with chipwhisperer. If not, see <http://www.gnu.org/licenses/>.
#=================================================
import sys
from datetime import *
from PySide.QtCore import *
from chipwhisperer.common.utils.parameter import Parameterized, Parameter, setupSetParam
from chipwhisperer.analyzer.utils.scripteditor import MainScriptEditor
from chipwhisperer.common.results.base import ResultsBase
from functools import partial
class AttackScriptGen(Parameterized):
_name = "Attack Script Generator"
def __init__(self, cwGUI):
self.cwGUI = cwGUI
self.locked = False
self.utilList = []
self.scriptList = []
self.scriptList.append({'widget':MainScriptEditor(self.cwGUI)})
self.scriptList[0]['filename'] = self.scriptList[0]['widget'].filename
self.scriptList[0]['dockname'] = 'Auto-Generated'
self.defaultEditor = self.scriptList[0]
autogen = (self.defaultEditor['dockname'], self.defaultEditor['filename'])
self.preprocessingListGUI = [None, None, None, None]
self.setAttack(self.cwGUI.api.valid_attacks.get("CPA", None), blockSignal=True)
self.getParams().addChildren([
{'name':'Attack Script', 'type':'group', 'children':[
{'name':'Filename', 'key':'attackfilelist', 'type':'filelist', 'values':{autogen:0}, 'value':0, 'editor':self.editorControl,},
]},
{'name':'Pre-Processing', 'type':'group', 'children':[
{'name':'Module #%d' % step, 'type':'list', 'values':self.cwGUI.api.valid_preprocessingModules, 'get':partial(self.getPreprocessing, step), 'set':partial(self.setPreprocessing, step)} for step in range(0, len(self.preprocessingListGUI))
]},
{'name':'Attack', 'type':'group', 'children':[
{'name':'Module', 'type':'list', 'values':self.cwGUI.api.valid_attacks, 'get':self.getAttack, 'set':self.setAttack},
]},
])
self.params.init()
self.preprocessingParams = Parameter(name="Preprocessing", type='group')
self.attackParams = Parameter(name="Attack", type='group')
self.params.getChild(['Attack','Module']).stealDynamicParameters(self.attackParams)
self.cwGUI.api.sigTracesChanged.connect(self.updateAttackTraceLimits)
def flushTimer(self):
"""Flush all pending script updates"""
[p.updateDelayTimer.flush() for p in self.preprocessingListGUI if p is not None]
self.attack.updateDelayTimer.flush()
def updateAttackTraceLimits(self):
self.attack.setTraceLimits(self.cwGUI.api.project().traceManager().numTraces(), self.cwGUI.api.project().traceManager().numPoints())
def editorControl(self, filename, filedesc, default=False, bringToFront=True):
"""This is the call-back from the script editor file list, which opens editors"""
# Find filename
thisEditor = None
for e in self.scriptList:
if e['filename'] == filename:
thisEditor = e
break
if thisEditor is None:
thisEditor = {'widget':MainScriptEditor(parent=self.cwGUI, filename=filename)}
thisEditor['filename'] = filename
thisEditor['dockname'] = filedesc
self.scriptList.append(thisEditor)
# Update all docks if required
thisEditor['dockname'] = filedesc
self.editorDocks()
if bringToFront:
thisEditor['dock'].show()
thisEditor['dock'].raise_()
if default:
# Set as default for attacks etc
self.defaultEditor = thisEditor
def editorDocks(self):
"""Ensure we have a script editor window for each referenced analyzer script file"""
for script in self.scriptList:
dockname = "Analysis Script: %s" % script['dockname']
# No previous dock, do setup
if 'dock' not in script.keys():
self.__runScriptConverter = partial(self.runScriptFunction, filename=script['filename'])
script['widget'].editWindow.runFunction.connect(self.__runScriptConverter)
script['dock'] = self.cwGUI.addDock(script['widget'], name=dockname, area=Qt.BottomDockWidgetArea)
script['dock'].setWindowTitle(dockname)
def getPreprocessing(self, num):
return self.preprocessingListGUI[num]
@setupSetParam("")
def setPreprocessing(self, num, module):
"""Insert the preprocessing module selected from the GUI into the list of active modules.
This ensures that the options for that module are then displayed in the GUI, along with
writing the auto-generated script.
"""
#Walk backwards to find previous trace source
last_trace_src = self.cwGUI.api.project().traceManager()
for i in range(num, 0, -1):
if self.preprocessingListGUI[i] is not None:
last_trace_src = self.preprocessingListGUI[i]
break
if self.preprocessingListGUI[num] is not None:
self.preprocessingListGUI[num].deregister()
self.preprocessingParams.getChild('Pre-Processing Mod. #%d'% num).delete()
if module:
self.preprocessingListGUI[num] = module(traceSource=last_trace_src)
self.preprocessingListGUI[num].scriptsUpdated.connect(self.reloadScripts)
par = Parameter(name = 'Pre-Processing Mod. #%d'% num, type = "group")
par.append(self.preprocessingListGUI[num].getParams())
self.preprocessingParams.append(par)
else:
self.preprocessingListGUI[num] = None
self.reloadScripts()
def getAttack(self):
return self.attack
@setupSetParam(["Attack","Module"])
def setAttack(self, module):
self.attack = module
if module:
self.updateAttackTraceLimits()
self.reloadScripts()
self.attack.scriptsUpdated.connect(self.reloadScripts)
self.attack.runScriptFunction.connect(self.runScriptFunction)
def runScriptFunction(self, funcName, filename=None):
"""Loads a given script and runs a specific function within it."""
mod = self.setupScriptModule(filename)
self.cwGUI.api.runScriptModule(mod, funcName)
def setupScriptModule(self, filename=None):
"""Loads a given script as a module for dynamic run-time insertion.
Args:
filename (str): The full filename to open. If None it opens the
auto-generated script instead.
"""
if filename and filename != self.defaultEditor['filename']:
raise Warning("Script Error: Cannot run script from non-default function")
return self.defaultEditor['widget'].loadModule()
def reloadScripts(self):
"""Rewrite the auto-generated analyzer script, using settings from the GUI"""
if self.cwGUI.api.executingScripts.value():
self.cwGUI.api.executingScripts.connect(self.reloadScripts)
return
self.cwGUI.api.executingScripts.disconnect(self.reloadScripts)
# Auto-Generated is always first
mse = self.scriptList[0]['widget']
mse.saveSliderPosition()
mse.editWindow.clear()
mse.append("# Date Auto-Generated: %s" % datetime.now().strftime('%Y.%m.%d-%H.%M.%S'), 0)
mse.append("from chipwhisperer.common.api.CWCoreAPI import CWCoreAPI", 0)
mse.append("from chipwhisperer.common.scripts.base import UserScriptBase", 0)
# Get imports from preprocessing
mse.append("# Imports from Preprocessing", 0)
for p in self.preprocessingListGUI:
if p:
imports = p.getImportStatements()
for i in imports: mse.append(i, 0)
# Get imports from attack
mse.append("# Imports from Attack", 0)
if self.attack:
for i in self.attack.getImportStatements():
mse.append(i, 0)
# Some other imports
mse.append("# Imports from utilList", 0)
for index, util in enumerate(self.utilList):
if util.findParam("enabled").getValue():
for i in util.getImportStatements(): mse.append(i, 0)
mse.append("", 0)
# Add main class
mse.append("class UserScript(UserScriptBase):", 0)
mse.append("_name = \"Auto-generated\"",1)
mse.append("_description = \"Auto-generated Attack Script\"",1)
mse.append("def __init__(self, api):", 1)
mse.append("UserScriptBase.__init__(self, api)")
mse.append("self.initProject()")
mse.append("self.initPreprocessing()")
mse.append("self.initAnalysis()")
mse.append("self.initReporting()")
mse.append("def initProject(self):", 1)
mse.append("pass")
mse.append("def initPreprocessing(self):", 1)
# Get init from preprocessing
lastOutput = "self.api.project().traceManager()"
for i, p in enumerate(self.preprocessingListGUI):
if p and p.getName() != "None":
classname = type(p).__name__
instname = "ppMod%d" % i
mse.append("%s = %s.%s(%s)" % (instname, sys.modules[p.__class__.__module__].__name__, classname, lastOutput))
for s in p.getStatements('init'):
mse.append(s.replace("self.", instname + ".").replace("UserScript.", "self."))
mse.append("%s.init()" % (instname))
lastOutput = instname
mse.append("self.traces = %s" % lastOutput)
# Get init from analysis
mse.append("def initAnalysis(self):", 1)
if self.attack:
mse.append('self.attack = %s()' % type(self.attack).__name__)
for s in self.attack.getStatements('init'):
mse.append(s.replace("self.", "self.attack.").replace("UserScript.", "self."))
else:
mse.append('pass')
# Get init from reporting
mse.append("def initReporting(self):", 1)
mse.append("# Configures the attack observers (usually a set of GUI widgets)")
if len(ResultsBase.registeredObjects)>0:
for k, v in ResultsBase.registeredObjects.iteritems():
if hasattr(v,"setTraceSource"):
mse.append("self.api.getResults(\"%s\").setTraceSource(self.traces)" % k)
if hasattr(v,"setAnalysisSource"):
mse.append("self.api.getResults(\"%s\").setAnalysisSource(self.attack)" % k)
else:
mse.append("pass")
# Do the attack
mse.append("def run(self):", 1)
mse.append("self.attack.processTraces()")
# Get other commands from attack module
if self.attack:
for k in self.attack._smartstatements:
if k == 'init' or k == 'go' or k == 'done':
pass
else:
mse.append("def %s(self):" % k, 1)
for s in self.attack.getStatements(k):
mse.append(s.replace("self.", "self.attack.").replace("UserScript.", "self."))
# Get other commands from other utilities
for index, util in enumerate(self.utilList):
if util.findParam("enabled").getValue():
for k in util._smartstatements:
util._smartstatements[k].addSelfReplacement("utilList[%d]." % index)
util._smartstatements[k].addSelfReplacement("cwagui.attackScriptGen.") #TODO-temp hack
statements = util.getStatements(k)
if len(statements) > 0:
mse.append("def %s_%s(self):" % (util.__class__.__name__, k), 1)
mse.append("self.cwagui = CWAnalyzerGUI.getInstance()") #TODO - temp hack
for s in statements:
mse.append(s.replace("UserScript.", "self."))
mse.append("if __name__ == '__main__':\n"
" import chipwhisperer.analyzer.ui.CWAnalyzerGUI as cwa\n"
" from chipwhisperer.common.utils.parameter import Parameter\n"
" Parameter.usePyQtGraph = True # Comment if you don't need the GUI\n"
" api = CWCoreAPI() # Instantiate the API\n"
" app = cwa.makeApplication(\"Analyzer\") # Comment if you don't need the GUI\n"
" gui = cwa.CWAnalyzerGUI(api) # Comment if you don't need the GUI\n"
" api.runScriptClass(UserScript) # Run UserScript through the API\n"
" app.exec_() # Comment if you don't need the GUI\n", 0)
mse.restoreSliderPosition()
self.cwGUI.api.runScriptModule(self.setupScriptModule(), None)