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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
#!/usr/bin/env python3
#
# python-ipfix (c) 2013-2014 Brian Trammell.
#
# Many thanks to the mPlane consortium (http://www.ict-mplane.eu) for
# its material support of this effort.
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 3 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <http://www.gnu.org/licenses/>.
#
import ipfix.ie
import ipfix.reader
import ipfix.template
import ipfix.message
import ipfix.v9pdu
import argparse
import csv
import bz2
import gzip
from functools import reduce
import operator
from sys import stdin, stdout, stderr
def parse_args():
parser = argparse.ArgumentParser(description="Dump statistics about templates and data sets in an IPFIX file")
parser.add_argument('--spec', '-s', metavar="specfile", action="append",
help="file to load additional IESpecs from")
parser.add_argument('--file', '-f', metavar="file", nargs="?",
help="IPFIX file to read (default stdin)")
parser.add_argument('--gzip', '-z', action="store_const", const=True,
help="Decompress gzip-compressed IPFIX file")
parser.add_argument('--bzip2', '-j', action="store_const", const=True,
help="Decompress bz2-compressed IPFIX file")
parser.add_argument('--netflow9', '-9', action="store_const", const=True,
help="Decode as NetFlow version 9 instead of IPFIX")
return parser.parse_args()
def init_ipfix(specfiles = None):
ipfix.ie.use_iana_default()
ipfix.ie.use_5103_default()
if specfiles:
for sf in specfiles:
ipfix.ie.use_specfile(sf)
def dump_template(odid, tmpl):
if tmpl.scopecount:
print("#\n# Options Template "+str(tmpl.tid)+" in domain "+str(odid)+
" ("+str(len(tmpl.ies))+" IEs)\n#")
else:
print("#\n# Template "+str(tmpl.tid)+" in domain "+str(odid)+
" ("+str(len(tmpl.ies))+" IEs)\n#")
for i, ie in enumerate(tmpl.ies):
if i < tmpl.scopecount:
addl = "{scope}"
else:
addl = ""
print(str(ie)+addl)
class TemplateStatsSession():
def __init__(self, instream, netflow9=False):
self.templates = {}
self.template_count = {}
self.template_replcount = {}
self.template_setcount = {}
self.template_bytecount = {}
self.missing_setcount = {}
self.missing_bytecount = {}
if netflow9:
self.r = ipfix.v9pdu.from_stream(instream)
self.r.template_record_hook = self.handle_template_record
self.r.ignored_data_set_hook = self.handle_data_set
self.r.unknown_data_set_hook = self.handle_unknown_set
else:
self.r = ipfix.reader.from_stream(instream)
self.r.msg.template_record_hook = self.handle_template_record
self.r.msg.ignored_data_set_hook = self.handle_data_set
self.r.msg.unknown_data_set_hook = self.handle_unknown_set
def handle_template_record(self, msg, tmpl):
tkey = (msg.odid, tmpl.tid)
# count templates per key, check for replacements
if tkey in self.templates:
self.template_count[tkey] += 1
if not self.templates[tkey].identical_to(tmpl):
self.template_replcount[tkey] += 1
self.templates[tkey] = tmpl
else:
self.templates[tkey] = tmpl
self.template_count[tkey] = 1
self.template_replcount[tkey] = 0
self.template_setcount[tkey] = 0
self.template_bytecount[tkey] = 0
def handle_data_set(self, msg, tmpl, setbuf):
tkey = (msg.odid, tmpl.tid)
self.template_setcount[tkey] += 1
self.template_bytecount[tkey] += len(setbuf)
def handle_unknown_set(self, msg, setbuf):
(setid, setlen) = ipfix.message._sethdr_st.unpack_from(setbuf)
tkey = (msg.odid, setid)
if tkey in self.missing_setcount:
self.missing_setcount[tkey] += 1
self.missing_bytecount[tkey] += setlen
else:
self.missing_setcount[tkey] = 1
self.missing_bytecount[tkey] = setlen
def run(self):
# trick: to run a collector without actually collecting anything,
# attach an ignored set hook then try to get a tuple containing
# an IE we'll never see.
for rec in self.r.tuple_iterator(ipfix.ie.spec_list(["impossible(35566/32767)<unsigned8>[1]"])):
pass
def print_report(self):
missing_setcount = self.missing_setcount.copy()
print("#\n# %u templates, %u template sets, %u decodable sets, %u replacements, %u missing sets total" %
(len(self.templates),
reduce(operator.add, self.template_count.values()),
reduce(operator.add, self.template_setcount.values()),
reduce(operator.add, self.template_replcount.values()),
reduce(operator.add, self.missing_setcount.values(), 0)))
for tkey in sorted(self.templates.keys()):
dump_template(tkey[0], self.templates[tkey])
print("# %u instances %u replacements %u sets %u bytes "
% (self.template_count[tkey], self.template_replcount[tkey],
self.template_setcount[tkey], self.template_bytecount[tkey]))
if tkey in missing_setcount:
print("# %u sets missing template with this ID" % missing_setcount[tkey])
del(missing_setcount[tkey])
if len(missing_setcount):
print("#\n# Sets without templates")
for tkey in missing_setcount:
print("# %u sets missing template with ID %u in domain %u" %
(missing_setcount[tkey], tkey[1], tkey[0]))
#######################################################################
# MAIN PROGRAM
#######################################################################
if __name__ == "__main__":
# get args
args = parse_args()
# initialize information model
init_ipfix(args.spec)
if args.file:
if args.bzip2:
with bz2.open (args.file, mode="rb") as f:
tss = TemplateStatsSession(f, args.netflow9)
tss.run()
elif args.gzip:
with gzip.open (args.file, mode="rb") as f:
tss = TemplateStatsSession(f, args.netflow9)
tss.run()
else:
with open (args.file, mode="rb") as f:
tss = TemplateStatsSession(f, args.netflow9)
tss.run()
else:
stdin = stdin.detach()
tss = TemplateStatsSession(stdin, args.netflow9)
tss.run()
tss.print_report()
|
