Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <stddef.h> |
| 18 | #include <stdint.h> |
| 19 | #include <unistd.h> |
| 20 | |
| 21 | #include "perfetto/base/logging.h" |
| 22 | #include "perfetto/base/task_runner.h" |
| 23 | #include "perfetto/base/utils.h" |
| 24 | #include "perfetto/ipc/host.h" |
Hector Dearman | faa22f8 | 2018-02-14 12:02:51 +0000 | [diff] [blame] | 25 | #include "perfetto/trace/test_event.pbzero.h" |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 26 | #include "perfetto/trace/trace_packet.pb.h" |
| 27 | #include "perfetto/trace/trace_packet.pbzero.h" |
| 28 | #include "perfetto/tracing/core/data_source_config.h" |
| 29 | #include "perfetto/tracing/core/data_source_descriptor.h" |
| 30 | #include "perfetto/tracing/core/producer.h" |
| 31 | #include "perfetto/tracing/core/trace_writer.h" |
| 32 | #include "perfetto/tracing/ipc/producer_ipc_client.h" |
| 33 | #include "perfetto/tracing/ipc/service_ipc_host.h" |
| 34 | #include "src/base/test/test_task_runner.h" |
| 35 | #include "test/fake_consumer.h" |
| 36 | #include "test/task_runner_thread.h" |
| 37 | |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 38 | namespace perfetto { |
| 39 | namespace shm_fuzz { |
| 40 | |
Florian Mayer | 43374ba | 2018-02-16 13:35:16 +0000 | [diff] [blame] | 41 | static const char* kProducerSocket = tempnam("/tmp", "perfetto-producer"); |
| 42 | static const char* kConsumerSocket = tempnam("/tmp", "perfetto-consumer"); |
| 43 | |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 44 | // Fake producer writing a protozero message of data into shared memory |
| 45 | // buffer, followed by a sentinel message to signal completion to the |
| 46 | // consumer. |
| 47 | class FakeProducer : public Producer { |
| 48 | public: |
Florian Mayer | 20c2c72 | 2018-02-15 14:10:16 +0000 | [diff] [blame] | 49 | FakeProducer(std::string name, |
| 50 | const uint8_t* data, |
| 51 | size_t size, |
| 52 | FakeConsumer* consumer) |
| 53 | : name_(std::move(name)), data_(data), size_(size), consumer_(consumer) {} |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 54 | |
| 55 | void Connect(const char* socket_name, base::TaskRunner* task_runner) { |
| 56 | endpoint_ = ProducerIPCClient::Connect(socket_name, this, task_runner); |
| 57 | } |
| 58 | |
| 59 | void OnConnect() override { |
| 60 | DataSourceDescriptor descriptor; |
| 61 | descriptor.set_name(name_); |
| 62 | endpoint_->RegisterDataSource(descriptor, |
| 63 | [this](DataSourceID id) { id_ = id; }); |
| 64 | } |
| 65 | |
| 66 | void OnDisconnect() override {} |
| 67 | |
| 68 | void CreateDataSourceInstance( |
| 69 | DataSourceInstanceID, |
| 70 | const DataSourceConfig& source_config) override { |
Primiano Tucci | ecf9e4a | 2018-03-14 14:51:58 +0000 | [diff] [blame^] | 71 | // The block is to destroy |packet| and |trace_writer| in order. Destroying |
| 72 | // the |trace_writer| will cause a flush of the completed packets. |
| 73 | { |
| 74 | auto trace_writer = endpoint_->CreateTraceWriter( |
| 75 | static_cast<BufferID>(source_config.target_buffer())); |
| 76 | auto packet = trace_writer->NewTracePacket(); |
| 77 | packet->stream_writer_->WriteBytes(data_, size_); |
| 78 | packet->Finalize(); |
| 79 | } |
| 80 | { |
| 81 | auto trace_writer = endpoint_->CreateTraceWriter( |
| 82 | static_cast<BufferID>(source_config.target_buffer())); |
| 83 | auto end_packet = trace_writer->NewTracePacket(); |
| 84 | end_packet->set_for_testing()->set_str("end"); |
| 85 | end_packet->Finalize(); |
| 86 | } |
Florian Mayer | 20c2c72 | 2018-02-15 14:10:16 +0000 | [diff] [blame] | 87 | consumer_->BusyWaitReadBuffers(); |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | void TearDownDataSourceInstance(DataSourceInstanceID) override {} |
| 91 | |
| 92 | private: |
| 93 | const std::string name_; |
| 94 | const uint8_t* data_; |
| 95 | const size_t size_; |
| 96 | DataSourceID id_ = 0; |
| 97 | std::unique_ptr<Service::ProducerEndpoint> endpoint_; |
Florian Mayer | 20c2c72 | 2018-02-15 14:10:16 +0000 | [diff] [blame] | 98 | FakeConsumer* consumer_; |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 99 | }; |
| 100 | |
| 101 | class FakeProducerDelegate : public ThreadDelegate { |
| 102 | public: |
Florian Mayer | 20c2c72 | 2018-02-15 14:10:16 +0000 | [diff] [blame] | 103 | FakeProducerDelegate(const uint8_t* data, size_t size, FakeConsumer* consumer) |
| 104 | : data_(data), size_(size), consumer_(consumer) {} |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 105 | ~FakeProducerDelegate() override = default; |
| 106 | |
| 107 | void Initialize(base::TaskRunner* task_runner) override { |
Florian Mayer | 20c2c72 | 2018-02-15 14:10:16 +0000 | [diff] [blame] | 108 | producer_.reset(new FakeProducer("android.perfetto.FakeProducer", data_, |
| 109 | size_, consumer_)); |
Florian Mayer | 43374ba | 2018-02-16 13:35:16 +0000 | [diff] [blame] | 110 | producer_->Connect(kProducerSocket, task_runner); |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | private: |
| 114 | std::unique_ptr<FakeProducer> producer_; |
| 115 | const uint8_t* data_; |
| 116 | const size_t size_; |
Florian Mayer | 20c2c72 | 2018-02-15 14:10:16 +0000 | [diff] [blame] | 117 | FakeConsumer* consumer_; |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 118 | }; |
| 119 | |
| 120 | class ServiceDelegate : public ThreadDelegate { |
| 121 | public: |
| 122 | ServiceDelegate() = default; |
| 123 | ~ServiceDelegate() override = default; |
| 124 | void Initialize(base::TaskRunner* task_runner) override { |
| 125 | svc_ = ServiceIPCHost::CreateInstance(task_runner); |
Florian Mayer | 43374ba | 2018-02-16 13:35:16 +0000 | [diff] [blame] | 126 | unlink(kProducerSocket); |
| 127 | unlink(kConsumerSocket); |
| 128 | svc_->Start(kProducerSocket, kConsumerSocket); |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 129 | } |
| 130 | |
| 131 | private: |
| 132 | std::unique_ptr<ServiceIPCHost> svc_; |
| 133 | base::ScopedFile producer_fd_; |
| 134 | base::ScopedFile consumer_fd_; |
| 135 | }; |
| 136 | |
| 137 | int FuzzSharedMemory(const uint8_t* data, size_t size); |
| 138 | |
| 139 | int FuzzSharedMemory(const uint8_t* data, size_t size) { |
| 140 | TaskRunnerThread service_thread; |
| 141 | service_thread.Start(std::unique_ptr<ServiceDelegate>(new ServiceDelegate())); |
| 142 | |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 143 | // Setup the TraceConfig for the consumer. |
| 144 | TraceConfig trace_config; |
Florian Mayer | 4c3580f | 2018-02-12 15:59:55 +0000 | [diff] [blame] | 145 | trace_config.add_buffers()->set_size_kb(8); |
Florian Mayer | 20c2c72 | 2018-02-15 14:10:16 +0000 | [diff] [blame] | 146 | trace_config.set_duration_ms(1000); |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 147 | |
| 148 | // Create the buffer for ftrace. |
| 149 | auto* ds_config = trace_config.add_data_sources()->mutable_config(); |
| 150 | ds_config->set_name("android.perfetto.FakeProducer"); |
| 151 | ds_config->set_target_buffer(0); |
| 152 | |
| 153 | base::TestTaskRunner task_runner; |
| 154 | auto finish = task_runner.CreateCheckpoint("no.more.packets"); |
| 155 | // Wait for sentinel message from Producer, then signal no.more.packets. |
| 156 | auto function = [&finish](std::vector<TracePacket> packets, bool has_more) { |
| 157 | for (auto& p : packets) { |
| 158 | p.Decode(); |
Hector Dearman | faa22f8 | 2018-02-14 12:02:51 +0000 | [diff] [blame] | 159 | if (p->for_testing().str() == "end") |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 160 | finish(); |
| 161 | } |
| 162 | }; |
| 163 | FakeConsumer consumer(trace_config, std::move(function), &task_runner); |
Florian Mayer | 43374ba | 2018-02-16 13:35:16 +0000 | [diff] [blame] | 164 | consumer.Connect(kConsumerSocket); |
Florian Mayer | 20c2c72 | 2018-02-15 14:10:16 +0000 | [diff] [blame] | 165 | |
| 166 | TaskRunnerThread producer_thread; |
| 167 | producer_thread.Start(std::unique_ptr<FakeProducerDelegate>( |
| 168 | new FakeProducerDelegate(data, size, &consumer))); |
Florian Mayer | 60d1e13 | 2018-01-26 15:00:52 +0000 | [diff] [blame] | 169 | task_runner.RunUntilCheckpoint("no.more.packets"); |
| 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | } // namespace shm_fuzz |
| 174 | } // namespace perfetto |
| 175 | |
| 176 | extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size); |
| 177 | |
| 178 | extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { |
| 179 | return perfetto::shm_fuzz::FuzzSharedMemory(data, size); |
| 180 | } |