forked from osmocom/wireshark
90 lines
4.0 KiB
Python
90 lines
4.0 KiB
Python
#
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# -*- coding: utf-8 -*-
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# Wireshark tests
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# By Gerald Combs <gerald@wireshark.org>
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#
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# Ported from a set of Bash scripts which were copyright 2005 Ulf Lamping
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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#
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'''Dissection tests'''
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import os.path
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import subprocesstest
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import unittest
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import fixtures
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@fixtures.mark_usefixtures('test_env')
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@fixtures.uses_fixtures
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class case_dissect_http2(subprocesstest.SubprocessTestCase):
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def test_http2_data_reassembly(self, cmd_tshark, features, dirs, capture_file):
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'''HTTP2 data reassembly'''
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if not features.have_nghttp2:
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self.skipTest('Requires nghttp2.')
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key_file = os.path.join(dirs.key_dir, 'http2-data-reassembly.keys')
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self.assertRun((cmd_tshark,
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'-r', capture_file('http2-data-reassembly.pcap'),
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'-o', 'tls.keylog_file: {}'.format(key_file),
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'-d', 'tcp.port==8443,tls',
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'-Y', 'http2.data.data matches "PNG" && http2.data.data matches "END"',
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))
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self.assertTrue(self.grepOutput('DATA'))
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@fixtures.mark_usefixtures('test_env')
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@fixtures.uses_fixtures
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class case_dissect_tcp(subprocesstest.SubprocessTestCase):
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def check_tcp_out_of_order(self, cmd_tshark, dirs, extraArgs=[]):
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capture_file = os.path.join(dirs.capture_dir, 'http-ooo.pcap')
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self.assertRun([cmd_tshark,
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'-r', capture_file,
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'-otcp.reassemble_out_of_order:TRUE',
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'-Y', 'http',
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] + extraArgs)
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self.assertEqual(self.countOutput('HTTP'), 5)
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# TODO PDU /1 (segments in frames 1, 2, 4) should be reassembled in
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# frame 4, but it is currently done in frame 6 because the current
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# implementation reassembles only contiguous segments and PDU /2 has
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# segments in frames 6, 3, 7.
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self.assertTrue(self.grepOutput(r'^\s*6\s.*PUT /1 HTTP/1.1'))
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self.assertTrue(self.grepOutput(r'^\s*7\s.*GET /2 HTTP/1.1'))
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self.assertTrue(self.grepOutput(r'^\s*10\s.*PUT /3 HTTP/1.1'))
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self.assertTrue(self.grepOutput(r'^\s*11\s.*PUT /4 HTTP/1.1'))
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self.assertTrue(self.grepOutput(r'^\s*15\s.*PUT /5 HTTP/1.1'))
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def test_tcp_out_of_order_onepass(self, cmd_tshark, dirs):
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self.check_tcp_out_of_order(cmd_tshark, dirs)
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@unittest.skip("MSP splitting is not implemented yet")
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def test_tcp_out_of_order_twopass(self, cmd_tshark, dirs):
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self.check_tcp_out_of_order(cmd_tshark, dirs, extraArgs=['-2'])
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def test_tcp_out_of_order_twopass_with_bug(self, cmd_tshark, capture_file):
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# TODO fix the issue below, remove this and enable
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# "test_tcp_out_of_order_twopass"
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self.assertRun((cmd_tshark,
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'-r', capture_file('http-ooo.pcap'),
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'-otcp.reassemble_out_of_order:TRUE',
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'-Y', 'http',
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'-2',
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))
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self.assertEqual(self.countOutput('HTTP'), 3)
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self.assertTrue(self.grepOutput(r'^\s*7\s.*PUT /1 HTTP/1.1'))
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self.assertTrue(self.grepOutput(r'^\s*7\s.*GET /2 HTTP/1.1'))
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# TODO ideally this should not be concatenated.
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# Normally a multi-segment PDU (MSP) covers only a single PDU, but OoO
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# segments can extend MSP such that it covers two (or even more) PDUs.
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# Until MSP splitting is implemented, two PDUs are shown in a single
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# packet (and in case of -2, they are only shown in the last packet).
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self.assertTrue(self.grepOutput(r'^\s*11\s.*PUT /3 HTTP/1.1'))
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self.assertTrue(self.grepOutput(r'^\s*11\s.*PUT /4 HTTP/1.1'))
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self.assertTrue(self.grepOutput(r'^\s*15\s.*PUT /5 HTTP/1.1'))
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def test_tcp_out_of_order_data_after_syn(self, cmd_tshark, capture_file):
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'''Test when the first non-empty segment is OoO.'''
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proc = self.assertRun((cmd_tshark,
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'-r', capture_file('dns-ooo.pcap'),
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'-otcp.reassemble_out_of_order:TRUE',
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'-Y', 'dns', '-Tfields', '-edns.qry.name',
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))
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self.assertEqual(proc.stdout_str.strip(), 'example.com')
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