1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
#!/usr/bin/python
#
# Tool to index protocols that appears in the given capture files
#
# Copyright 2009, Kovarththanan Rajaratnam <kovarththanan.rajaratnam@gmail.com>
#
# $Id$
#
# Wireshark - Network traffic analyzer
# By Gerald Combs <gerald@wireshark.org>
# Copyright 1998 Gerald Combs
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
from optparse import OptionParser
import multiprocessing
import sys
import os
import subprocess
import re
import pickle
def process_capture_file(tshark, file):
cmd = [tshark, "-Tfields", "-e", "frame.protocols", "-r", file]
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(stdout, stderr) = p.communicate()
if p.returncode != 0:
return None
proto_hash = {}
for line in stdout.splitlines():
if not re.match(r'^[\w:-]+$', line):
continue
for proto in line.split(':'):
proto_hash[proto] = 1 + proto_hash.setdefault(proto, 0)
return (file, proto_hash)
def list_proto(cap_hash):
proto_hash = {}
for files_hash in cap_hash.itervalues():
for proto,count in files_hash.iteritems():
proto_hash[proto] = count + proto_hash.setdefault(proto, 0)
print proto_hash
def list_files(cap_hash):
files = cap_hash.keys()
files.sort()
print files
def index_file_action(options):
return options.list_proto or options.list_files
def find_capture_files(paths, cap_hash):
cap_files = []
for path in paths:
if os.path.isdir(path):
path = os.path.normpath(path)
for root, dirs, files in os.walk(path):
cap_files += [os.path.join(root, name) for name in files if os.path.join(root, name) not in cap_hash]
elif path not in cap_hash:
cap_files.append(path)
return cap_files
def main():
parser = OptionParser(usage="usage: %prog [options] index_file [file_1|dir_1 [.. file_n|dir_n]]")
parser.add_option("-n", "--no-append", dest="append", default=True, action="store_false", help="Do not append to existing cache file")
parser.add_option("-m", "--max-files", dest="max_files", default=sys.maxint, type="int", help="Max number of files to process")
parser.add_option("-b", "--binary-dir", dest="bin_dir", default=os.getcwd(), help="Directory containing tshark executable")
parser.add_option("-j", dest="num_procs", default=1, type=int, help="Max number of processes to spawn")
parser.add_option("-l", "--list-proto", dest="list_proto", default=False, action="store_true", help="List all protocols in index file")
parser.add_option("-f", "--list-files", dest="list_files", default=False, action="store_true", help="List all files in index file")
(options, args) = parser.parse_args()
if len(args) == 0:
parser.error("index_file is a required argument")
if len(args) == 1 and not index_file_action(options):
parser.error("one capture file/directory must be specified")
index_file_name = args.pop(0)
try:
index_file = open(index_file_name, "r")
print "index file:", index_file.name, "[OPENED]",
cap_hash = pickle.load(index_file)
index_file.close()
print len(cap_hash), "files"
except IOError:
print "index file:", index_file_name, "[NEW]"
cap_hash = {}
if options.list_proto:
list_proto(cap_hash)
exit(0)
if options.list_files:
list_files(cap_hash)
exit(0)
tshark = os.path.join(options.bin_dir, "tshark.exe")
if os.access(tshark, os.X_OK):
print "tshark:", tshark, "[FOUND]"
else:
print "tshark:", tshark, "[MISSING]"
exit(1)
paths = args
cap_files = find_capture_files(paths, cap_hash)
cap_files.sort()
print len(cap_files), "total files,",
options.max_files = min(options.max_files, len(cap_files))
cap_files = cap_files[:options.max_files]
print len(cap_files), "indexable files"
print "\n"
pool = multiprocessing.Pool(options.num_procs)
results = [pool.apply_async(process_capture_file, [tshark, file]) for file in cap_files]
cur_item_num = 0
for result in results:
cur_item_num += 1
try:
file_result = result.get(1)
except multiprocessing.TimeoutError:
cur_item_num -= 1
continue
if file_result is None:
continue
print "PROCESSED [%u/%u] %s %u bytes" % (cur_item_num, options.max_files, file_result[0], os.path.getsize(file_result[0]))
cap_hash.update(dict([file_result]))
index_file = open(index_file_name, "w")
pickle.dump(cap_hash, index_file)
index_file.close()
if __name__ == "__main__":
main()
|
