[tor-commits] [ooni-probe/master] Work on scapy related functionality

[art@xxxxxxxxxxxxxx]

commit 0f78e3f66aeeb3f830f2ff2b0cd5a465a764ec9e
Author: Arturo Filastò <arturo@xxxxxxxxxxx>
Date:   Sun Oct 7 21:57:54 2012 +0000

    Work on scapy related functionality
    * Discover the existence of bugs in scapy when using Arch Linux.
      (probably has to do with the non existence of ifconfig, somebody should make
      a ifconfig to ip wrapper that suggests the user with the equivalent ip
      command. This would assist sysadmins in migrating away from a deprecated
      tool and persist backward comaptibility)
    * Fix bugs in runner and nettest
---
 nettests/examples/example_scapyt.py |   16 ++++++++++++++++
 ooni/nettest.py                     |    2 +-
 ooni/oonicli.py                     |    9 +++++++++
 ooni/runner.py                      |    4 +++-
 ooni/templates/scapyt.py            |   22 +++++++---------------
 5 files changed, 36 insertions(+), 17 deletions(-)

diff --git a/nettests/examples/example_scapyt.py b/nettests/examples/example_scapyt.py
index 1cc8054..403ddc5 100644
--- a/nettests/examples/example_scapyt.py
+++ b/nettests/examples/example_scapyt.py
@@ -13,3 +13,19 @@ class ExampleScapy(scapyt.ScapyTest):
     inputs = [IP(dst="8.8.8.8")/TCP(dport=31337),
               IP(dst="ooni.nu")/TCP(dport=31337)]
 
+
+    def test_sendReceive(self):
+        log.msg("Running send receive")
+        if self.receive:
+            log.msg("Sending and receiving packets.")
+            d = self.sendReceivePackets(self.buildPackets())
+        else:
+            log.msg("Sending packets.")
+            d = self.sendPackets(self.buildPackets())
+
+        def finished(data):
+            log.msg("Finished sending")
+            return data
+
+        d.addCallback(finished)
+        return
diff --git a/ooni/nettest.py b/ooni/nettest.py
index 7f9562a..e7ae7d5 100644
--- a/ooni/nettest.py
+++ b/ooni/nettest.py
@@ -103,7 +103,7 @@ class TestCase(unittest.TestCase):
             self.inputs = self.inputProcessor(fp)
         elif not self.inputs[0]:
             pass
-        else:
+        elif self.inputFile:
             raise usage.UsageError("No input file specified!")
         # XXX perhaps we may want to name and version to be inside of a
         # different object that is not called options.
diff --git a/ooni/oonicli.py b/ooni/oonicli.py
index af93af9..40c01fd 100644
--- a/ooni/oonicli.py
+++ b/ooni/oonicli.py
@@ -43,6 +43,8 @@ class Options(usage.Options, app.ReactorSelectionMixin):
                 "files listed on the command line")
 
     optFlags = [["help", "h"],
+                ['debug-stacktraces', 'B',
+                    'Report deferred creation and callback stack traces'],
                 ]
 
     optParameters = [
@@ -96,6 +98,13 @@ def run():
     except usage.error, ue:
         raise SystemExit, "%s: %s" % (sys.argv[0], ue)
 
+    if config['debug-stacktraces']:
+        defer.setDebugging(True)
+
+    #logFile = open(config['logfile'], 'w')
+    #logFileObserver = log.FileLogObserver(logFile)
+    #log.startLoggingWithObserver(logFileObserver.emit, 0)
+
     classes = runner.findTestClassesFromConfig(config)
 
     casesList, options = runner.loadTestsAndOptions(classes)
diff --git a/ooni/runner.py b/ooni/runner.py
index 0b9503a..1a03814 100644
--- a/ooni/runner.py
+++ b/ooni/runner.py
@@ -7,6 +7,8 @@ import inspect
 from twisted.internet import defer, reactor
 from twisted.python import reflect, failure, usage
 
+from twisted.python import log as tlog
+
 from twisted.trial import unittest
 from twisted.trial.runner import TrialRunner, TestLoader
 from twisted.trial.runner import isPackage, isTestCase, ErrorHolder
@@ -183,7 +185,7 @@ class ORunner(object):
     them in input units. I also create all the report instances required to run
     the tests.
     """
-    def __init__(self, cases, options=None, config=None):
+    def __init__(self, cases, options=None, config=None, *arg, **kw):
         self.baseSuite = InputTestSuite
         self.cases = cases
         self.options = options
diff --git a/ooni/templates/scapyt.py b/ooni/templates/scapyt.py
index ac32ad8..b2ac148 100644
--- a/ooni/templates/scapyt.py
+++ b/ooni/templates/scapyt.py
@@ -31,7 +31,7 @@ class ScapyTest(TestCase):
 
     receive = True
     timeout = 1
-    pcapfile = '/home/x/code/networking/ooni-probe/scapytest.pcap'
+    pcapfile = None
     input = IP()/TCP()
     reactor = None
     def setUp(self):
@@ -44,23 +44,15 @@ class ScapyTest(TestCase):
     def tearDown(self):
         self.reactor.stop()
 
-    def test_sendReceive(self):
-        log.msg("Running send receive")
-        if self.receive:
-            log.msg("Sending and receiving packets.")
-            d = txsr(self.buildPackets(), pcapfile=self.pcapfile,
-                     timeout=self.timeout, reactor=self.reactor)
-        else:
-            log.msg("Sending packets.")
-            d = txsend(self.buildPackets(), reactor=self.reactor)
+    def sendReceivePackets(self, packets):
+        d = txsr(packets, pcapfile=self.pcapfile,
+                     timeout=10, reactor=self.reactor)
 
-        def finished(data):
-            log.msg("Finished sending")
-            return data
-
-        d.addCallback(finished)
         return d
 
+    def sendPackets(self, packets):
+        return txsend(self.buildPackets(), reactor=self.reactor)
+
     def buildPackets(self):
         """
         Override this method to build scapy packets.

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