Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 83 insertions, 0 deletions

diff --git a/test/suite_io.py b/test/suite_io.py
new file mode 100644
index 00000000..4376d1b1
--- /dev/null
+++ b/test/suite_io.py
@@ -0,0 +1,83 @@
+#
+# Wireshark tests
+# By Gerald Combs <gerald@wireshark.org>
+#
+# Ported from a set of Bash scripts which were copyright 2005 Ulf Lamping
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+'''File I/O tests'''
+
+import io
+import os.path
+import subprocess
+from subprocesstest import cat_dhcp_command, check_packet_count
+import sys
+import pytest
+
+testout_pcap = 'testout.pcap'
+baseline_file = 'io-rawshark-dhcp-pcap.txt'
+
+
+@pytest.fixture(scope='session')
+def io_baseline_str(dirs):
+    with open(os.path.join(dirs.baseline_dir, baseline_file), 'r') as f:
+        return f.read()
+
+
+def check_io_4_packets(capture_file, result_file, cmd_tshark, cmd_capinfos, from_stdin=False, to_stdout=False, env=None):
+    # Test direct->direct, stdin->direct, and direct->stdout file I/O.
+    # Similar to suite_capture.check_capture_10_packets and
+    # suite_capture.check_capture_stdin.
+
+    testout_file = result_file(testout_pcap)
+    if from_stdin and to_stdout:
+        # XXX If we support this, should we bother with separate stdin->direct
+        # and direct->stdout tests?
+        pytest.fail('Stdin and stdout not supported in the same test.')
+    elif from_stdin:
+        # cat -B "${CAPTURE_DIR}dhcp.pcap" | $DUT -r - -w ./testout.pcap 2>./testout.txt
+        cat_dhcp_cmd = cat_dhcp_command('cat')
+        stdin_cmd = '{0} | "{1}" -r - -w "{2}"'.format(cat_dhcp_cmd, cmd_tshark, testout_file)
+        subprocess.check_call(stdin_cmd, shell=True, env=env)
+    elif to_stdout:
+        # $DUT -r "${CAPTURE_DIR}dhcp.pcap" -w - > ./testout.pcap 2>./testout.txt
+        stdout_cmd = '"{0}" -r "{1}" -w - > "{2}"'.format(cmd_tshark, capture_file('dhcp.pcap'), testout_file)
+        subprocess.check_call(stdout_cmd, shell=True, env=env)
+    else: # direct->direct
+        # $DUT -r "${CAPTURE_DIR}dhcp.pcap" -w ./testout.pcap > ./testout.txt 2>&1
+        subprocess.check_call((cmd_tshark,
+            '-r', capture_file('dhcp.pcap'),
+            '-w', testout_file,
+        ), env=env)
+    assert os.path.isfile(testout_file)
+    check_packet_count(cmd_capinfos, 4, testout_file)
+
+
+class TestTsharkIO:
+    def test_tshark_io_stdin_direct(self, cmd_tshark, cmd_capinfos, capture_file, result_file, test_env):
+        '''Read from stdin and write direct using TShark'''
+        check_io_4_packets(capture_file, result_file, cmd_tshark, cmd_capinfos, from_stdin=True, env=test_env)
+
+    def test_tshark_io_direct_stdout(self, cmd_tshark, cmd_capinfos, capture_file, result_file, test_env):
+        '''Read direct and write to stdout using TShark'''
+        check_io_4_packets(capture_file, result_file, cmd_tshark, cmd_capinfos, to_stdout=True, env=test_env)
+
+    def test_tshark_io_direct_direct(self, cmd_tshark, cmd_capinfos, capture_file, result_file, test_env):
+        '''Read direct and write direct using TShark'''
+        check_io_4_packets(capture_file, result_file, cmd_tshark, cmd_capinfos, env=test_env)
+
+
+class TestRawsharkIO:
+    if sys.byteorder != 'little':
+        pytest.skip('Requires a little endian system')
+    def test_rawshark_io_stdin(self, cmd_rawshark, capture_file, result_file, io_baseline_str, test_env):
+        '''Read from stdin using Rawshark'''
+        # tail -c +25 "${CAPTURE_DIR}dhcp.pcap" | $RAWSHARK -dencap:1 -R "udp.port==68" -nr - > $IO_RAWSHARK_DHCP_PCAP_TESTOUT 2> /dev/null
+        # diff -u --strip-trailing-cr $IO_RAWSHARK_DHCP_PCAP_BASELINE $IO_RAWSHARK_DHCP_PCAP_TESTOUT > $DIFF_OUT 2>&1
+        capture_file = capture_file('dhcp.pcap')
+        testout_file = result_file(testout_pcap)
+        raw_dhcp_cmd = cat_dhcp_command('raw')
+        rawshark_cmd = '{0} | "{1}" -r - -n -dencap:1 -R "udp.port==68"'.format(raw_dhcp_cmd, cmd_rawshark)
+        rawshark_stdout = subprocess.check_output(rawshark_cmd, shell=True, encoding='utf-8', env=test_env)
+        assert rawshark_stdout == io_baseline_str