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
|
/*
* Copyright (C) 2019 The Android Open Source Project
*
* 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.
*/
#define FUZZ_LOG_TAG "binder_ndk"
#include "binder_ndk.h"
#include "aidl/parcelables/EmptyParcelable.h"
#include "aidl/parcelables/GenericDataParcelable.h"
#include "aidl/parcelables/SingleDataParcelable.h"
#include <android/binder_parcel_utils.h>
#include <android/binder_parcelable_utils.h>
#include "util.h"
// TODO(b/142061461): parent class
class SomeParcelable {
public:
binder_status_t writeToParcel(AParcel* /*parcel*/) { return STATUS_OK; }
binder_status_t readFromParcel(const AParcel* parcel) {
return AParcel_readInt32(parcel, &mValue);
}
private:
int32_t mValue = 0;
};
class ISomeInterface : public ::ndk::ICInterface {
public:
ISomeInterface() = default;
virtual ~ISomeInterface() = default;
static binder_status_t readFromParcel(const AParcel* parcel,
std::shared_ptr<ISomeInterface>* instance);
};
static binder_status_t onTransact(AIBinder*, transaction_code_t, const AParcel*, AParcel*) {
return STATUS_UNKNOWN_TRANSACTION;
}
static AIBinder_Class* g_class = ::ndk::ICInterface::defineClass("ISomeInterface", onTransact);
class BpSomeInterface : public ::ndk::BpCInterface<ISomeInterface> {
public:
explicit BpSomeInterface(const ::ndk::SpAIBinder& binder) : BpCInterface(binder) {}
virtual ~BpSomeInterface() = default;
};
binder_status_t ISomeInterface::readFromParcel(const AParcel* parcel,
std::shared_ptr<ISomeInterface>* instance) {
::ndk::SpAIBinder binder;
binder_status_t status = AParcel_readStrongBinder(parcel, binder.getR());
if (status == STATUS_OK) {
if (AIBinder_associateClass(binder.get(), g_class)) {
*instance = std::static_pointer_cast<ISomeInterface>(
::ndk::ICInterface::asInterface(binder.get()));
} else {
*instance = ::ndk::SharedRefBase::make<BpSomeInterface>(binder);
}
}
return status;
}
#define PARCEL_READ(T, FUN) \
[](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) { \
FUZZ_LOG() << "about to read " #T " using " #FUN " with status"; \
T t{}; \
binder_status_t status = FUN(p.aParcel(), &t); \
FUZZ_LOG() << #T " status: " << status /* << " value: " << t*/; \
}
// clang-format off
std::vector<ParcelRead<NdkParcelAdapter>> BINDER_NDK_PARCEL_READ_FUNCTIONS{
// methods from binder_parcel.h
[](const NdkParcelAdapter& p, FuzzedDataProvider& provider) {
// aborts on larger values
size_t pos = provider.ConsumeIntegralInRange<size_t>(0, INT32_MAX);
FUZZ_LOG() << "about to set data position to " << pos;
binder_status_t status = AParcel_setDataPosition(p.aParcel(), pos);
FUZZ_LOG() << "set data position: " << status;
},
[](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) {
FUZZ_LOG() << "about to read status header";
ndk::ScopedAStatus t;
binder_status_t status = AParcel_readStatusHeader(p.aParcel(), t.getR());
FUZZ_LOG() << "read status header: " << status;
},
[](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) {
FUZZ_LOG() << "about to getDataSize the parcel";
AParcel_getDataSize(p.aParcel());
FUZZ_LOG() << "getDataSize done";
},
[](const NdkParcelAdapter& p, FuzzedDataProvider& provider) {
FUZZ_LOG() << "about to read a ParcelableHolder";
ndk::AParcelableHolder ph {provider.ConsumeBool() ? ndk::STABILITY_LOCAL : ndk::STABILITY_VINTF};
binder_status_t status = AParcel_readParcelable(p.aParcel(), &ph);
FUZZ_LOG() << "read the ParcelableHolder: " << status;
},
[](const NdkParcelAdapter& p, FuzzedDataProvider& provider) {
size_t offset = provider.ConsumeIntegral<size_t>();
size_t pos = provider.ConsumeIntegral<size_t>();
FUZZ_LOG() << "about to appendFrom " << pos;
// TODO: create random parcel
AParcel* parcel = AParcel_create();
binder_status_t status = AParcel_appendFrom(p.aParcel(), parcel, offset, pos);
AParcel_delete(parcel);
FUZZ_LOG() << "appendFrom: " << status;
},
PARCEL_READ(int32_t, AParcel_readInt32),
PARCEL_READ(uint32_t, AParcel_readUint32),
PARCEL_READ(int64_t, AParcel_readInt64),
PARCEL_READ(uint64_t, AParcel_readUint64),
PARCEL_READ(float, AParcel_readFloat),
PARCEL_READ(double, AParcel_readDouble),
PARCEL_READ(bool, AParcel_readBool),
PARCEL_READ(char16_t, AParcel_readChar),
PARCEL_READ(int8_t, AParcel_readByte),
// methods from binder_parcel_utils.h
PARCEL_READ(ndk::SpAIBinder, ndk::AParcel_readNullableStrongBinder),
PARCEL_READ(ndk::SpAIBinder, ndk::AParcel_readRequiredStrongBinder),
PARCEL_READ(ndk::ScopedFileDescriptor, ndk::AParcel_readNullableParcelFileDescriptor),
PARCEL_READ(ndk::ScopedFileDescriptor, ndk::AParcel_readRequiredParcelFileDescriptor),
PARCEL_READ(std::string, ndk::AParcel_readString),
PARCEL_READ(std::optional<std::string>, ndk::AParcel_readString),
PARCEL_READ(std::vector<std::string>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<std::optional<std::string>>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<SomeParcelable>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<std::optional<SomeParcelable>>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<ndk::SpAIBinder>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<ndk::SpAIBinder>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<ndk::ScopedFileDescriptor>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<ndk::ScopedFileDescriptor>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<std::shared_ptr<ISomeInterface>>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<std::shared_ptr<ISomeInterface>>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<int32_t>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<int32_t>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<uint32_t>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<uint32_t>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<int64_t>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<int64_t>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<uint64_t>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<uint64_t>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<float>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<float>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<double>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<double>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<bool>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<bool>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<char16_t>, ndk::AParcel_readVector),
PARCEL_READ(std::optional<std::vector<char16_t>>, ndk::AParcel_readVector),
PARCEL_READ(std::vector<int32_t>, ndk::AParcel_resizeVector),
PARCEL_READ(std::optional<std::vector<int32_t>>, ndk::AParcel_resizeVector),
// methods for std::array<T,N>
#define COMMA ,
PARCEL_READ(std::array<bool COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<uint8_t COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<char16_t COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<int32_t COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<int64_t COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<float COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<double COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<std::string COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<SomeParcelable COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<ndk::SpAIBinder COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<ndk::ScopedFileDescriptor COMMA 3>, ndk::AParcel_readData),
PARCEL_READ(std::array<std::shared_ptr<ISomeInterface> COMMA 3>, ndk::AParcel_readData),
#undef COMMA
[](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) {
FUZZ_LOG() << "about to read parcel using readFromParcel for EmptyParcelable";
aidl::parcelables::EmptyParcelable emptyParcelable;
binder_status_t status = emptyParcelable.readFromParcel(p.aParcel());
FUZZ_LOG() << "status: " << status;
},
[](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) {
FUZZ_LOG() << "about to read parcel using readFromParcel for SingleDataParcelable";
aidl::parcelables::SingleDataParcelable singleDataParcelable;
binder_status_t status = singleDataParcelable.readFromParcel(p.aParcel());
FUZZ_LOG() << "status: " << status;
},
[](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) {
FUZZ_LOG() << "about to read parcel using readFromParcel for GenericDataParcelable";
aidl::parcelables::GenericDataParcelable genericDataParcelable;
binder_status_t status = genericDataParcelable.readFromParcel(p.aParcel());
FUZZ_LOG() << "status: " << status;
std::string toString = genericDataParcelable.toString();
FUZZ_LOG() << "toString() result: " << toString;
},
[](const NdkParcelAdapter& p, FuzzedDataProvider& provider) {
FUZZ_LOG() << "about to marshal AParcel";
size_t start = provider.ConsumeIntegral<size_t>();
// limit 1MB to avoid OOM issues
size_t len = provider.ConsumeIntegralInRange<size_t>(0, 1000000);
uint8_t buffer[len];
binder_status_t status = AParcel_marshal(p.aParcel(), buffer, start, len);
FUZZ_LOG() << "status: " << status;
},
[](const NdkParcelAdapter& /*p*/, FuzzedDataProvider& provider) {
FUZZ_LOG() << "about to unmarshal AParcel";
size_t len = provider.ConsumeIntegralInRange<size_t>(0, provider.remaining_bytes());
std::vector<uint8_t> parcelData = provider.ConsumeBytes<uint8_t>(len);
const uint8_t* buffer = parcelData.data();
const size_t bufferLen = parcelData.size();
NdkParcelAdapter adapter;
binder_status_t status = AParcel_unmarshal(adapter.aParcel(), buffer, bufferLen);
FUZZ_LOG() << "status: " << status;
},
};
// clang-format on
|
