contrib: move auxiliary scripts to own directory

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

2 files changed, 164 insertions, 0 deletions

diff --git a/contrib/dissector_fuzz.sh b/contrib/dissector_fuzz.sh
new file mode 100755
index 0000000..40b6170
--- /dev/null
+++ b/contrib/dissector_fuzz.sh
@@ -0,0 +1,79 @@
+#!/usr/bin/env bash
+# -*- coding: utf-8 -*-
+#
+# dissector_fuzz.sh -- fuzz test netsniff-ng's dissector and pcap io methods
+#		       with shitty pcap example files from the Wireshark archive
+#
+# Copyright (C) 2012 Daniel Borkmann <borkmann@redhat.com>
+# Copyright (C) 2012 Stefan Seering <sseerin@imn.htwk-leipzig.de>
+#
+# Note: build and *install* the toolkit first before running this script!
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+set -u
+
+if [ ${BASH_VERSINFO} -lt 3 ] ; then
+	echo 'Error: Your bash need to be version 3 or newer. Exiting.'
+	exit 1 # operators like =~ produce errors silently in old bash versions, so exit here
+fi
+
+archive='ftp://wireshark.org/automated/captures/'
+show_output='' # empty string evaluates to false
+run_through='' # empty string evaluates to false
+count_cores=0
+count_files=0
+netsniff_ng_opts=''
+
+if [ $# -gt 0 ] ; then
+	if [ "$1" = '-h' -o "$1" = '--help' -o "$1" = '--usage' ] ; then
+		echo 'Usage: dissector_fuzz [-s (show netsniff-ng output, default: no)] [-r (keep running on errors, default: no)] [netsniff-ng long-args]'
+		exit 0
+	fi
+
+	for opt in $@ ; do
+		if [ "${opt}" = '-s' ] ; then
+			show_output='true'
+		elif [ "${opt}" = '-r' ] ; then
+			run_through='true'
+		else
+			netsniff_ng_opts="${netsniff_ng_opts} ${opt}";
+		fi
+	done
+fi
+
+mkdir -p fuzzing
+cd fuzzing
+wget -r -Nc -np -nd -A.pcap "$archive"  |& grep -E "%|^--"
+ulimit -c unlimited
+rm -f core
+for file in *.pcap
+do
+	echo "Testing file $file ..."
+	if [ $show_output ]; then
+		netsniff-ng --in "$file" "${netsniff_ng_opts}"
+	else
+		netsniff-ng --in "$file" "${netsniff_ng_opts}" > /dev/null
+	fi
+	if [ -e core ]; then
+		echo "Fuck, core dumped on $file!"
+		let count_cores=count_cores+1
+		if [ $run_through ]; then
+			rm core
+		else
+			exit
+		fi
+	fi
+done
+
+if which cowsay > /dev/null ; then
+	echo_cmd='cowsay'
+else
+	echo_cmd='echo'
+fi
+
+${echo_cmd} 'Your fuckup Score'
+echo " * tested pcaps: $count_files"
+echo " * core dumps:   $count_cores"
diff --git a/contrib/oui-update.py b/contrib/oui-update.py
new file mode 100755
index 0000000..07add9f
--- /dev/null
+++ b/contrib/oui-update.py
@@ -0,0 +1,85 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# update-oui.py -- update netsniff-ng oui.conf from official IEEE OUI list
+#
+# Copyright (C) 2013 Tobias Klauser <tklauser@distanz.ch>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+import os
+import sys
+import re
+import getopt
+try:
+    from urllib2 import urlopen             # Python 2.x
+except ImportError:
+    from urllib.request import urlopen      # Python 3.x
+
+DEFAULT_OUPUT_FILE = "oui.conf"
+DEFAULT_OUI_URL = "http://standards.ieee.org/develop/regauth/oui/oui.txt"
+
+OUI_PATTERN = re.compile(b"^\s*([a-fA-F0-9]{2})-([a-fA-F0-9]{2})-([a-fA-F0-9]{2})\s+\(hex\)\s+(.*)$")
+
+def usage():
+    print("""usage: {0} [OPTION...]
+available options:
+    -f  force overwrite of existing file
+    -o  set output file (default: {1})
+    -u  set URL to fetch OUI list from (default: {2})
+    -h  show this help and exit""".format(os.path.basename(sys.argv[0]),
+                                          DEFAULT_OUPUT_FILE, DEFAULT_OUI_URL))
+
+def main():
+    try:
+        opts, args = getopt.getopt(sys.argv[1:], "fo:u:h")
+    except getopt.GetoptError as err:
+        print(str(err))
+        usage()
+        sys.exit(-1)
+
+    overwrite = False
+    output_file = DEFAULT_OUPUT_FILE
+    oui_url = DEFAULT_OUI_URL
+    for o, a in opts:
+        if o == '-f':
+            overwrite = True
+        elif o == '-o':
+            output_file = a
+        elif o == '-u':
+            oui_url = a
+        elif o == '-h':
+            usage()
+            sys.exit(0)
+        else:
+            assert False, "unhandled option"
+
+    if not overwrite and os.path.exists(output_file):
+        print("Error: output file {} already exists".format(output_file))
+        sys.exit(-1)
+
+    print("Updating OUI information in {} from {}... ".format(output_file, oui_url))
+
+    fh_url = urlopen(oui_url)
+
+    ouis = []
+    for line in fh_url:
+        m = OUI_PATTERN.match(line)
+        if m:
+            oui = "0x{}{}{}".format(m.group(1), m.group(2), m.group(3))
+            vendor = m.group(4).rstrip()
+            ouis.append((oui, vendor))
+
+    fh_file = open(output_file, 'w')
+    for oui, vendor in sorted(ouis):
+        fh_file.write("{}, {}\n".format(oui, vendor))
+
+    fh_url.close()
+    fh_file.close()
+
+    print("{} OUIs written to {}".format(len(ouis), output_file))
+
+if __name__ == '__main__':
+    main()