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
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ipc/ipc_message_utils.h"
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include "base/files/file_path.h"
#include "base/json/json_reader.h"
#include "base/memory/ptr_util.h"
#include "base/memory/shared_memory.h"
#include "base/test/test_shared_memory_util.h"
#include "base/unguessable_token.h"
#include "ipc/ipc_channel_handle.h"
#include "ipc/ipc_message.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace IPC {
namespace {
// Tests nesting of messages as parameters to other messages.
TEST(IPCMessageUtilsTest, NestedMessages) {
int32_t nested_routing = 12;
uint32_t nested_type = 78;
int nested_content = 456789;
Message::PriorityValue nested_priority = Message::PRIORITY_HIGH;
Message nested_msg(nested_routing, nested_type, nested_priority);
nested_msg.set_sync();
ParamTraits<int>::Write(&nested_msg, nested_content);
// Outer message contains the nested one as its parameter.
int32_t outer_routing = 91;
uint32_t outer_type = 88;
Message::PriorityValue outer_priority = Message::PRIORITY_NORMAL;
Message outer_msg(outer_routing, outer_type, outer_priority);
ParamTraits<Message>::Write(&outer_msg, nested_msg);
// Read back the nested message.
base::PickleIterator iter(outer_msg);
IPC::Message result_msg;
ASSERT_TRUE(ParamTraits<Message>::Read(&outer_msg, &iter, &result_msg));
// Verify nested message headers.
EXPECT_EQ(nested_msg.routing_id(), result_msg.routing_id());
EXPECT_EQ(nested_msg.type(), result_msg.type());
EXPECT_EQ(nested_msg.priority(), result_msg.priority());
EXPECT_EQ(nested_msg.flags(), result_msg.flags());
// Verify nested message content
base::PickleIterator nested_iter(nested_msg);
int result_content = 0;
ASSERT_TRUE(ParamTraits<int>::Read(&nested_msg, &nested_iter,
&result_content));
EXPECT_EQ(nested_content, result_content);
// Try reading past the ends for both messages and make sure it fails.
IPC::Message dummy;
ASSERT_FALSE(ParamTraits<Message>::Read(&outer_msg, &iter, &dummy));
ASSERT_FALSE(ParamTraits<int>::Read(&nested_msg, &nested_iter,
&result_content));
}
// Tests that detection of various bad parameters is working correctly.
TEST(IPCMessageUtilsTest, ParameterValidation) {
base::FilePath::StringType ok_string(FILE_PATH_LITERAL("hello"), 5);
base::FilePath::StringType bad_string(FILE_PATH_LITERAL("hel\0o"), 5);
// Change this if ParamTraits<FilePath>::Write() changes.
IPC::Message message;
ParamTraits<base::FilePath::StringType>::Write(&message, ok_string);
ParamTraits<base::FilePath::StringType>::Write(&message, bad_string);
base::PickleIterator iter(message);
base::FilePath ok_path;
base::FilePath bad_path;
ASSERT_TRUE(ParamTraits<base::FilePath>::Read(&message, &iter, &ok_path));
ASSERT_FALSE(ParamTraits<base::FilePath>::Read(&message, &iter, &bad_path));
}
TEST(IPCMessageUtilsTest, StackVector) {
static const size_t stack_capacity = 5;
base::StackVector<double, stack_capacity> stack_vector;
for (size_t i = 0; i < 2 * stack_capacity; i++)
stack_vector->push_back(i * 2.0);
IPC::Message msg(1, 2, IPC::Message::PRIORITY_NORMAL);
IPC::WriteParam(&msg, stack_vector);
base::StackVector<double, stack_capacity> output;
base::PickleIterator iter(msg);
EXPECT_TRUE(IPC::ReadParam(&msg, &iter, &output));
for (size_t i = 0; i < 2 * stack_capacity; i++)
EXPECT_EQ(stack_vector[i], output[i]);
}
TEST(IPCMessageUtilsTest, MojoChannelHandle) {
mojo::MessagePipe message_pipe;
IPC::ChannelHandle channel_handle(message_pipe.handle0.release());
IPC::Message message;
IPC::WriteParam(&message, channel_handle);
base::PickleIterator iter(message);
IPC::ChannelHandle result_handle;
EXPECT_TRUE(IPC::ReadParam(&message, &iter, &result_handle));
EXPECT_EQ(channel_handle.mojo_handle, result_handle.mojo_handle);
}
TEST(IPCMessageUtilsTest, OptionalUnset) {
base::Optional<int> opt;
base::Pickle pickle;
IPC::WriteParam(&pickle, opt);
std::string log;
IPC::LogParam(opt, &log);
EXPECT_EQ("(unset)", log);
base::Optional<int> unserialized_opt;
base::PickleIterator iter(pickle);
EXPECT_TRUE(IPC::ReadParam(&pickle, &iter, &unserialized_opt));
EXPECT_FALSE(unserialized_opt);
}
TEST(IPCMessageUtilsTest, OptionalSet) {
base::Optional<int> opt(10);
base::Pickle pickle;
IPC::WriteParam(&pickle, opt);
std::string log;
IPC::LogParam(opt, &log);
EXPECT_EQ("10", log);
base::Optional<int> unserialized_opt;
base::PickleIterator iter(pickle);
EXPECT_TRUE(IPC::ReadParam(&pickle, &iter, &unserialized_opt));
EXPECT_TRUE(unserialized_opt);
EXPECT_EQ(opt.value(), unserialized_opt.value());
}
TEST(IPCMessageUtilsTest, SharedMemoryHandle) {
base::SharedMemoryCreateOptions options;
options.size = 1004;
base::SharedMemory shmem;
ASSERT_TRUE(shmem.Create(options));
base::SharedMemoryHandle pre_pickle = shmem.handle().Duplicate();
ASSERT_TRUE(pre_pickle.IsValid());
IPC::Message message;
IPC::WriteParam(&message, pre_pickle);
base::SharedMemoryHandle post_pickle;
base::PickleIterator iter(message);
EXPECT_TRUE(IPC::ReadParam(&message, &iter, &post_pickle));
EXPECT_EQ(pre_pickle.GetGUID(), post_pickle.GetGUID());
EXPECT_EQ(pre_pickle.GetSize(), post_pickle.GetSize());
}
template <typename SharedMemoryRegionType>
class SharedMemoryRegionTypedTest : public ::testing::Test {};
typedef ::testing::Types<base::WritableSharedMemoryRegion,
base::UnsafeSharedMemoryRegion,
base::ReadOnlySharedMemoryRegion>
AllSharedMemoryRegionTypes;
TYPED_TEST_CASE(SharedMemoryRegionTypedTest, AllSharedMemoryRegionTypes);
TYPED_TEST(SharedMemoryRegionTypedTest, WriteAndRead) {
const size_t size = 2314;
TypeParam pre_pickle;
base::WritableSharedMemoryMapping pre_mapping;
std::tie(pre_pickle, pre_mapping) = base::CreateMappedRegion<TypeParam>(size);
const size_t pre_size = pre_pickle.GetSize();
const std::string content = "Hello, world!";
memcpy(pre_mapping.memory(), content.data(), content.size());
IPC::Message message;
IPC::WriteParam(&message, pre_pickle);
EXPECT_FALSE(pre_pickle.IsValid());
TypeParam post_pickle;
base::PickleIterator iter(message);
EXPECT_TRUE(IPC::ReadParam(&message, &iter, &post_pickle));
EXPECT_EQ(pre_size, post_pickle.GetSize());
typename TypeParam::MappingType post_mapping = post_pickle.Map();
EXPECT_EQ(pre_mapping.guid(), post_mapping.guid());
EXPECT_EQ(0, memcmp(pre_mapping.memory(), post_mapping.memory(),
post_pickle.GetSize()));
}
TYPED_TEST(SharedMemoryRegionTypedTest, InvalidRegion) {
TypeParam pre_pickle;
EXPECT_FALSE(pre_pickle.IsValid());
IPC::Message message;
IPC::WriteParam(&message, pre_pickle);
TypeParam post_pickle;
base::PickleIterator iter(message);
EXPECT_TRUE(IPC::ReadParam(&message, &iter, &post_pickle));
EXPECT_FALSE(post_pickle.IsValid());
}
TEST(IPCMessageUtilsTest, UnguessableTokenTest) {
base::UnguessableToken token = base::UnguessableToken::Create();
base::Pickle pickle;
IPC::WriteParam(&pickle, token);
std::string log;
IPC::LogParam(token, &log);
EXPECT_EQ(token.ToString(), log);
base::UnguessableToken deserialized_token;
base::PickleIterator iter(pickle);
EXPECT_TRUE(IPC::ReadParam(&pickle, &iter, &deserialized_token));
EXPECT_EQ(token, deserialized_token);
}
TEST(IPCMessageUtilsTest, FlatMap) {
base::flat_map<std::string, int> input;
input["foo"] = 42;
input["bar"] = 96;
base::Pickle pickle;
IPC::WriteParam(&pickle, input);
base::PickleIterator iter(pickle);
base::flat_map<std::string, int> output;
EXPECT_TRUE(IPC::ReadParam(&pickle, &iter, &output));
EXPECT_EQ(input, output);
}
} // namespace
} // namespace IPC
|
