forked from leolee192/sequencer
-
Notifications
You must be signed in to change notification settings - Fork 0
/
analyzer_test.go
276 lines (215 loc) · 10.1 KB
/
analyzer_test.go
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
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
// Copyright (c) 2014 Dataence, LLC. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package sequence
import (
"fmt"
"testing"
"github.com/stretchr/testify/require"
)
var (
analyzerSshTests = []struct {
msg, pat string
}{
{
"Jan 12 06:49:42 irc sshd[7034]: Failed password for root from 218.161.81.238 port 4228 ssh2",
"%msgtime% %apphost% %appname% [ %sessionid% ] : %status% %method% for %srcuser% from %srcip% port %srcport% ssh2",
},
{
"Jan 12 06:49:42 irc sshd[7034]: Accepted password for root from 218.161.81.238 port 4228 ssh2",
"%msgtime% %apphost% %appname% [ %sessionid% ] : %status% %method% for %srcuser% from %srcip% port %srcport% ssh2",
},
{
"Jan 12 14:44:48 jlz sshd[11084]: Accepted publickey for jlz from 76.21.0.16 port 36609 ssh2",
"%msgtime% %apphost% %appname% [ %sessionid% ] : %status% %method% for %srcuser% from %srcip% port %srcport% ssh2",
},
{
"Jan 12 08:03:01 buster-dev sshd[24877]: pam_unix(sshd:session): session opened for user jolata by (uid=0)",
"%msgtime% %apphost% %appname% [ %sessionid% ] : pam_unix ( sshd : %object% ) : session %action% for user %srcuser% by ( uid = %srcuid% )",
},
{
"Jan 12 11:05:23 irc sshd[7791]: pam_unix(sshd:auth): check pass; user unknown",
"%msgtime% %apphost% %appname% [ %sessionid% ] : pam_unix ( sshd : %string% ) : check pass ; user %srcuser%",
},
}
analyzerKVTests = []struct {
msg, pat string
}{
{
"id=firewall time=\"2005-03-18 14:01:46\" fw=TOPSEC priv=6 recorder=kernel type=conn policy=414 proto=TCP rule=accept src=61.167.71.244 sport=35223 dst=210.82.119.211 dport=25 duration=27 inpkt=37 outpkt=39 sent=1770 rcvd=20926 smac=00:04:c1:8b:d8:82 dmac=00:0b:5f:b2:1d:80",
"id = %string% time = \" %msgtime% \" fw = %string% priv = %integer% recorder = %string% type = %string% policy = %integer% proto = %protocol% rule = %string% src = %srcip% sport = %srcport% dst = %dstip% dport = %dstport% duration = %duration% inpkt = %integer% outpkt = %integer% sent = %integer% rcvd = %integer% smac = %srcmac% dmac = %dstmac%",
},
{
"id=firewall time=\"2005-03-18 14:01:43\" fw=TOPSEC priv=4 recorder=kernel type=conn policy=504 proto=TCP rule=deny src=210.82.121.91 sport=4958 dst=61.229.37.85 dport=23124 smac=00:0b:5f:b2:1d:80 dmac=00:04:c1:8b:d8:82",
"id = %string% time = \" %msgtime% \" fw = %string% priv = %integer% recorder = %string% type = %string% policy = %integer% proto = %protocol% rule = %string% src = %srcip% sport = %srcport% dst = %dstip% dport = %dstport% smac = %srcmac% dmac = %dstmac%",
},
}
analyzerSshdSamples []string = []string{
"Jan 12 06:49:42 irc sshd[7034]: Failed password for root from 218.161.81.238 port 4228 ssh2",
"Jan 12 06:49:42 irc sshd[7034]: Accepted password for root from 218.161.81.238 port 4228 ssh2",
"Jan 12 14:44:48 jlz sshd[11084]: Accepted publickey for jlz from 76.21.0.16 port 36609 ssh2",
}
analyzerSshdPatterns []string = []string{
"%time% %string% sshd [ %integer% ] : %string% %string% for %string% from %ipv4% port %integer% ssh2",
"%time% %string% sshd [ %integer% ] : %string% %string% for %string% from %ipv4% port %integer% ssh2",
"%time% %string% sshd [ %integer% ] : %string% %string% for %string% from %ipv4% port %integer% ssh2",
}
)
func TestAnalyzerMergeNodes(t *testing.T) {
atree := NewAnalyzer()
scanner := NewScanner()
for _, data := range analyzerSshdSamples {
seq, err := scanner.Scan(data)
require.NoError(t, err)
err = atree.Add(seq)
require.NoError(t, err)
}
l := 0
for i := 1; i < allTypesCount; i++ {
node := atree.levels[l][i]
if i == TagTypesCount+int(TokenTime) {
require.NotNil(t, node, fmt.Sprintf("Expected: levels[%d][TokenTime] != nil, Actual: got nil", l))
} else {
require.Nil(t, node, fmt.Sprintf("Expected: levels[%d][%d] == nil, Actual: got non-nil %s", l, i, node))
}
}
require.Equal(t, 0, len(atree.litmaps[l]), fmt.Sprintf("Expected: levels[%d].litmap == 0, Actual: got %d", l, len(atree.litmaps[l])))
l = 1
for i := 1; i < allTypesCount; i++ {
node := atree.levels[l][i]
require.Nil(t, node, fmt.Sprintf("Expected: levels[%d][%d] == nil, Actual: got non-nil %s", l, i, node))
}
if len(atree.litmaps[l]) != 2 {
t.Fatalf("Expected: levels[%d].litmap == 2, Actual: got %d", l, len(atree.litmaps[l]))
}
l = 2
for i := 1; i < allTypesCount; i++ {
node := atree.levels[l][i]
require.Nil(t, node, fmt.Sprintf("Expected: levels[%d][%d] == nil, Actual: got non-nil %s", l, i, node))
}
require.Equal(t, 1, len(atree.litmaps[l]), fmt.Sprintf("Expected: levels[%d].litmap == 1, Actual: got %d", l, len(atree.litmaps[l])))
l = 4
for i := 1; i < allTypesCount; i++ {
node := atree.levels[l][i]
if i == TagTypesCount+int(TokenInteger) {
require.NotNil(t, node, fmt.Sprintf("Expected: levels[%d][TokenInteger] != nil, Actual: got nil", l))
} else {
require.Nil(t, node, fmt.Sprintf("Expected: levels[%d][%d] == nil, Actual: got non-nil %s", l, i, node))
}
}
require.Equal(t, 0, len(atree.litmaps[l]), fmt.Sprintf("Expected: levels[%d].litmap == 0, Actual: got %d", l, len(atree.litmaps[l])))
l = 7
for i := 1; i < allTypesCount; i++ {
node := atree.levels[l][i]
require.Nil(t, node, fmt.Sprintf("Expected: levels[%d][%d] == nil, Actual: got non-nil %s", l, i, node))
}
require.Equal(t, 2, len(atree.litmaps[l]), fmt.Sprintf("Expected: levels[%d].litmap == 2, Actual: got %d", l, len(atree.litmaps[l])))
l = 8
for i := 1; i < allTypesCount; i++ {
node := atree.levels[l][i]
require.Nil(t, node, fmt.Sprintf("Expected: levels[%d][%d] == nil, Actual: got non-nil %s", l, i, node))
}
require.Equal(t, 2, len(atree.litmaps[l]), fmt.Sprintf("Expected: levels[%d].litmap == 2, Actual: got %d", l, len(atree.litmaps[l])))
l = 12
for i := 1; i < allTypesCount; i++ {
node := atree.levels[l][i]
if i == TagTypesCount+int(TokenIPv4) {
require.NotNil(t, node, fmt.Sprintf("Expected: levels[%d][TokenIPv4] != nil, Actual: got nil", l))
} else {
require.Nil(t, node, fmt.Sprintf("Expected: levels[%d][%d] == nil, Actual: got non-nil %s", l, i, node))
}
}
require.Equal(t, 0, len(atree.litmaps[l]), fmt.Sprintf("Expected: levels[%d].litmap == 0, Actual: got %d", l, len(atree.litmaps[l])))
l = 14
for i := 1; i < allTypesCount; i++ {
node := atree.levels[l][i]
if i == TagTypesCount+int(TokenInteger) {
require.NotNil(t, node, fmt.Sprintf("Expected: levels[%d][TokenInteger] != nil, Actual: got nil", l))
} else {
require.Nil(t, node, fmt.Sprintf("Expected: levels[%d][%d] == nil, Actual: got non-nil %s", l, i, node))
}
}
require.Equal(t, 0, len(atree.litmaps[l]), fmt.Sprintf("Expected: levels[%d].litmap == 0, Actual: got %d", l, len(atree.litmaps[l])))
atree.Finalize()
for _, l := range []int{1, 7, 8, 10} {
require.Equal(t, allTypesCount+1, len(atree.levels[l]), fmt.Sprintf("Expected: len(levels[%d]) == %d, Actual: got non-nil %d", l, allTypesCount+1, len(atree.levels[l])))
for i := 1; i < allTypesCount; i++ {
node := atree.levels[l][i]
require.Nil(t, node, fmt.Sprintf("Expected: levels[%d][%d] == nil, Actual: got non-nil %s", l, i, node))
}
node := atree.levels[l][allTypesCount]
require.Equal(t, TokenString, node.Type, fmt.Sprintf("Expected: levels[%d][%d].Type == TokenString, Actual: got %s", l, allTypesCount+1, node.Type))
}
}
func TestAnalyzerKeyValuePairs(t *testing.T) {
atree := NewAnalyzer()
scanner := NewScanner()
for _, tc := range analyzerKVTests {
seq, err := scanner.Scan(tc.msg)
require.NoError(t, err)
err = atree.Add(seq)
require.NoError(t, err, tc.msg)
}
atree.Finalize()
for _, i := range []int{0, 1, 3, 4, 8, 9, 11, 12, 14, 15, 17, 18, 20, 21, 23, 24, 26, 27, 29, 30, 32, 33, 35, 36, 38, 39, 42, 45, 47, 50, 53, 56, 59} {
require.Equal(t, 1, len(atree.litmaps[i]), fmt.Sprintf("Expected: levels[%d].litmap == 1, Actual: got %d", i, len(atree.litmaps[i])))
}
for _, i := range []int{41, 44} {
require.Equal(t, 2, len(atree.litmaps[i]), fmt.Sprintf("Expected: levels[%d].litmap == 2, Actual: got %d", i, len(atree.litmaps[i])))
}
for _, i := range []int{1, 4, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45} {
_, ok := atree.litmaps[i]["="]
require.True(t, ok, fmt.Sprintf("Expected: levels[%d][\"=\"] exists, Actual: not exist", i))
}
_, ok := atree.litmaps[41]["duration"]
require.True(t, ok, fmt.Sprintf("Expected: levels[%d][\"duration\"] exists, Actual: not exist", 41))
_, ok = atree.litmaps[41]["smac"]
require.True(t, ok, fmt.Sprintf("Expected: levels[%d][\"smac\"] exists, Actual: not exist", 41))
if _, ok := atree.litmaps[44]["inpkt"]; !ok {
t.Fatalf("Expected: levels[%d][\"inpkt\"] exists, Actual: not exist", 44)
}
if _, ok := atree.litmaps[44]["dmac"]; !ok {
t.Fatalf("Expected: levels[%d][\"dmac\"] exists, Actual: not exist", 44)
}
}
func TestAnalyzerMatchPatterns(t *testing.T) {
atree := NewAnalyzer()
scanner := NewScanner()
for _, tc := range analyzerSshTests {
seq, err := scanner.Scan(tc.msg)
require.NoError(t, err)
err = atree.Add(seq)
require.NoError(t, err, tc.msg)
}
for _, tc := range analyzerKVTests {
seq, err := scanner.Scan(tc.msg)
require.NoError(t, err)
err = atree.Add(seq)
require.NoError(t, err, tc.msg)
}
atree.Finalize()
for _, tc := range analyzerSshTests {
seq, err := scanner.Scan(tc.msg)
require.NoError(t, err)
seq, err = atree.Analyze(seq)
require.NoError(t, err, tc.msg)
require.Equal(t, tc.pat, seq.String(), tc.msg+"\n"+seq.PrintTokens())
}
for _, tc := range analyzerKVTests {
seq, err := scanner.Scan(tc.msg)
require.NoError(t, err)
seq, err = atree.Analyze(seq)
require.NoError(t, err, tc.msg)
require.Equal(t, tc.pat, seq.String(), tc.msg+"\n"+seq.PrintTokens())
}
}