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
|
// Copyright 2021 Code Intelligence GmbH
//
// 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 com.code_intelligence.jazzer.runtime;
import com.code_intelligence.jazzer.api.HookType;
import com.code_intelligence.jazzer.api.MethodHook;
import java.lang.invoke.MethodHandle;
import java.util.Arrays;
@SuppressWarnings("unused")
final public class TraceCmpHooks {
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Byte", targetMethod = "compare",
targetMethodDescriptor = "(BB)I")
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Byte",
targetMethod = "compareUnsigned", targetMethodDescriptor = "(BB)I")
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Short", targetMethod = "compare",
targetMethodDescriptor = "(SS)I")
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Short",
targetMethod = "compareUnsigned", targetMethodDescriptor = "(SS)I")
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Integer",
targetMethod = "compare", targetMethodDescriptor = "(II)I")
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Integer",
targetMethod = "compareUnsigned", targetMethodDescriptor = "(II)I")
public static void
integerCompare(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
TraceDataFlowNativeCallbacks.traceCmpInt((int) arguments[0], (int) arguments[1], hookId);
}
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Byte",
targetMethod = "compareTo", targetMethodDescriptor = "(Ljava/lang/Byte;)I")
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Short",
targetMethod = "compareTo", targetMethodDescriptor = "(Ljava/lang/Short;)I")
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Integer",
targetMethod = "compareTo", targetMethodDescriptor = "(Ljava/lang/Integer;)I")
public static void
integerCompareTo(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
TraceDataFlowNativeCallbacks.traceCmpInt((int) thisObject, (int) arguments[0], hookId);
}
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Long", targetMethod = "compare",
targetMethodDescriptor = "(JJ)I")
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Long",
targetMethod = "compareUnsigned", targetMethodDescriptor = "(JJ)I")
public static void
longCompare(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
TraceDataFlowNativeCallbacks.traceCmpLong((long) arguments[0], (long) arguments[1], hookId);
}
@MethodHook(type = HookType.BEFORE, targetClassName = "java.lang.Long",
targetMethod = "compareTo", targetMethodDescriptor = "(Ljava/lang/Long;)I")
public static void
longCompareTo(MethodHandle method, Long thisObject, Object[] arguments, int hookId) {
TraceDataFlowNativeCallbacks.traceCmpLong(thisObject, (long) arguments[0], hookId);
}
@MethodHook(type = HookType.AFTER, targetClassName = "java.lang.String", targetMethod = "equals")
@MethodHook(type = HookType.AFTER, targetClassName = "java.lang.String",
targetMethod = "equalsIgnoreCase")
public static void
equals(
MethodHandle method, String thisObject, Object[] arguments, int hookId, Boolean returnValue) {
if (arguments[0] instanceof String && !returnValue) {
// The precise value of the result of the comparison is not used by libFuzzer as long as it is
// non-zero.
TraceDataFlowNativeCallbacks.traceStrcmp(thisObject, (String) arguments[0], 1, hookId);
}
}
@MethodHook(
type = HookType.AFTER, targetClassName = "java.lang.String", targetMethod = "compareTo")
@MethodHook(type = HookType.AFTER, targetClassName = "java.lang.String",
targetMethod = "compareToIgnoreCase")
public static void
compareTo(
MethodHandle method, String thisObject, Object[] arguments, int hookId, Integer returnValue) {
if (arguments[0] instanceof String && returnValue != 0) {
TraceDataFlowNativeCallbacks.traceStrcmp(
thisObject, (String) arguments[0], returnValue, hookId);
}
}
@MethodHook(
type = HookType.AFTER, targetClassName = "java.lang.String", targetMethod = "contentEquals")
public static void
contentEquals(
MethodHandle method, String thisObject, Object[] arguments, int hookId, Boolean returnValue) {
if (arguments[0] instanceof CharSequence && !returnValue) {
TraceDataFlowNativeCallbacks.traceStrcmp(
thisObject, ((CharSequence) arguments[0]).toString(), 1, hookId);
}
}
@MethodHook(type = HookType.AFTER, targetClassName = "java.lang.String",
targetMethod = "regionMatches", targetMethodDescriptor = "(ZILjava/lang/String;II)Z")
public static void
regionsMatches5(
MethodHandle method, Object thisObject, Object[] arguments, int hookId, Boolean returnValue) {
if (!returnValue) {
int toffset = (int) arguments[1];
String other = (String) arguments[2];
int ooffset = (int) arguments[3];
int len = (int) arguments[4];
regionMatchesInternal((String) thisObject, toffset, other, ooffset, len, hookId);
}
}
@MethodHook(type = HookType.AFTER, targetClassName = "java.lang.String",
targetMethod = "regionMatches", targetMethodDescriptor = "(ILjava/lang/String;II)Z")
public static void
regionMatches4(
MethodHandle method, Object thisObject, Object[] arguments, int hookId, Boolean returnValue) {
if (!returnValue) {
int toffset = (int) arguments[0];
String other = (String) arguments[1];
int ooffset = (int) arguments[2];
int len = (int) arguments[3];
regionMatchesInternal((String) thisObject, toffset, other, ooffset, len, hookId);
}
}
private static void regionMatchesInternal(
String thisString, int toffset, String other, int ooffset, int len, int hookId) {
if (toffset < 0 || ooffset < 0)
return;
int cappedThisStringEnd = Math.min(toffset + len, thisString.length());
int cappedOtherStringEnd = Math.min(ooffset + len, other.length());
String thisPart = thisString.substring(toffset, cappedThisStringEnd);
String otherPart = other.substring(ooffset, cappedOtherStringEnd);
TraceDataFlowNativeCallbacks.traceStrcmp(thisPart, otherPart, 1, hookId);
}
@MethodHook(
type = HookType.AFTER, targetClassName = "java.lang.String", targetMethod = "contains")
public static void
contains(
MethodHandle method, String thisObject, Object[] arguments, int hookId, Boolean returnValue) {
if (arguments[0] instanceof CharSequence && !returnValue) {
TraceDataFlowNativeCallbacks.traceStrstr(
thisObject, ((CharSequence) arguments[0]).toString(), hookId);
}
}
@MethodHook(type = HookType.AFTER, targetClassName = "java.lang.String", targetMethod = "indexOf")
@MethodHook(
type = HookType.AFTER, targetClassName = "java.lang.String", targetMethod = "lastIndexOf")
@MethodHook(
type = HookType.AFTER, targetClassName = "java.lang.StringBuffer", targetMethod = "indexOf")
@MethodHook(type = HookType.AFTER, targetClassName = "java.lang.StringBuffer",
targetMethod = "lastIndexOf")
@MethodHook(
type = HookType.AFTER, targetClassName = "java.lang.StringBuilder", targetMethod = "indexOf")
@MethodHook(type = HookType.AFTER, targetClassName = "java.lang.StringBuilder",
targetMethod = "lastIndexOf")
public static void
indexOf(
MethodHandle method, Object thisObject, Object[] arguments, int hookId, Integer returnValue) {
if (arguments[0] instanceof String && returnValue == -1) {
TraceDataFlowNativeCallbacks.traceStrstr(
thisObject.toString(), (String) arguments[0], hookId);
}
}
@MethodHook(
type = HookType.AFTER, targetClassName = "java.lang.String", targetMethod = "startsWith")
@MethodHook(
type = HookType.AFTER, targetClassName = "java.lang.String", targetMethod = "endsWith")
public static void
startsWith(
MethodHandle method, String thisObject, Object[] arguments, int hookId, Boolean returnValue) {
if (!returnValue) {
TraceDataFlowNativeCallbacks.traceStrstr(thisObject, (String) arguments[0], hookId);
}
}
@MethodHook(type = HookType.AFTER, targetClassName = "java.lang.String", targetMethod = "replace",
targetMethodDescriptor =
"(Ljava/lang/CharSequence;Ljava/lang/CharSequence;)Ljava/lang/String;")
public static void
replace(
MethodHandle method, Object thisObject, Object[] arguments, int hookId, String returnValue) {
String original = (String) thisObject;
String target = arguments[0].toString();
// Report only if the replacement was not successful.
if (original.equals(returnValue)) {
TraceDataFlowNativeCallbacks.traceStrstr(original, target, hookId);
}
}
@MethodHook(type = HookType.AFTER, targetClassName = "java.util.Arrays", targetMethod = "equals",
targetMethodDescriptor = "([B[B)Z")
public static void
arraysEquals(
MethodHandle method, Object thisObject, Object[] arguments, int hookId, Boolean returnValue) {
byte[] first = (byte[]) arguments[0];
byte[] second = (byte[]) arguments[1];
if (!returnValue) {
TraceDataFlowNativeCallbacks.traceMemcmp(first, second, 1, hookId);
}
}
@MethodHook(type = HookType.AFTER, targetClassName = "java.util.Arrays", targetMethod = "equals",
targetMethodDescriptor = "([BII[BII)Z")
public static void
arraysEqualsRange(
MethodHandle method, Object thisObject, Object[] arguments, int hookId, Boolean returnValue) {
byte[] first =
Arrays.copyOfRange((byte[]) arguments[0], (int) arguments[1], (int) arguments[2]);
byte[] second =
Arrays.copyOfRange((byte[]) arguments[3], (int) arguments[4], (int) arguments[5]);
if (!returnValue) {
TraceDataFlowNativeCallbacks.traceMemcmp(first, second, 1, hookId);
}
}
@MethodHook(type = HookType.AFTER, targetClassName = "java.util.Arrays", targetMethod = "compare",
targetMethodDescriptor = "([B[B)I")
@MethodHook(type = HookType.AFTER, targetClassName = "java.util.Arrays",
targetMethod = "compareUnsigned", targetMethodDescriptor = "([B[B)I")
public static void
arraysCompare(
MethodHandle method, Object thisObject, Object[] arguments, int hookId, Integer returnValue) {
byte[] first = (byte[]) arguments[0];
byte[] second = (byte[]) arguments[1];
if (returnValue != 0) {
TraceDataFlowNativeCallbacks.traceMemcmp(first, second, returnValue, hookId);
}
}
@MethodHook(type = HookType.AFTER, targetClassName = "java.util.Arrays", targetMethod = "compare",
targetMethodDescriptor = "([BII[BII)I")
@MethodHook(type = HookType.AFTER, targetClassName = "java.util.Arrays",
targetMethod = "compareUnsigned", targetMethodDescriptor = "([BII[BII)I")
public static void
arraysCompareRange(
MethodHandle method, Object thisObject, Object[] arguments, int hookId, Integer returnValue) {
byte[] first =
Arrays.copyOfRange((byte[]) arguments[0], (int) arguments[1], (int) arguments[2]);
byte[] second =
Arrays.copyOfRange((byte[]) arguments[3], (int) arguments[4], (int) arguments[5]);
if (returnValue != 0) {
TraceDataFlowNativeCallbacks.traceMemcmp(first, second, returnValue, hookId);
}
}
}
|
