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1 /*
2  * Copyright (c) 2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef HOOK_MANAGER_H
17 #define HOOK_MANAGER_H
18 
19 #include <map>
20 #include <memory>
21 #include <string>
22 #include <vector>
23 
24 #include "buffer_writer.h"
25 #include "manager_interface.h"
26 #include "hook_service.h"
27 #include "epoll_event_poller.h"
28 #include "share_memory_allocator.h"
29 #include "event_notifier.h"
30 #include "native_hook_config.pb.h"
31 #include "native_hook_result.pb.h"
32 #include "virtual_runtime.h"
33 #include "stack_data_repeater.h"
34 #include "stack_preprocess.h"
35 
36 using BatchNativeHookDataPtr = STD_PTR(shared, BatchNativeHookData);
37 class ProfilerPluginConfig;
38 class PluginResult;
39 class CommandPoller;
40 
41 struct HookContext {
42     int type;
43     pid_t pid;
44     pid_t tid;
45     void* addr;
46     uint32_t mallocSize;
47 };
48 
49 namespace OHOS::Developtools::NativeDaemon {
50 class HookManager : public ManagerInterface {
51 public:
52     HookManager();
53     HookManager(std::shared_ptr<ShareMemoryBlock>& shareMemoryBlock, std::shared_ptr<EventNotifier>& eventNotifier,
54                 StackDataRepeaterPtr& stackData);
55     bool RegisterAgentPlugin(const std::string& pluginPath);
56     bool UnregisterAgentPlugin(const std::string& pluginPath);
57 
58     bool LoadPlugin(const std::string& pluginPath) override;
59     bool UnloadPlugin(const std::string& pluginPath) override;
60     bool UnloadPlugin(const uint32_t pluginId) override;
61 
62     // CommandPoller will call the following four interfaces after receiving the command
63     bool CreatePluginSession(const std::vector<ProfilerPluginConfig>& config) override;
64     bool DestroyPluginSession(const std::vector<uint32_t>& pluginIds) override;
65     bool StartPluginSession(const std::vector<uint32_t>& pluginIds,
66                             const std::vector<ProfilerPluginConfig>& config, PluginResult& result) override;
67     bool StopPluginSession(const std::vector<uint32_t>& pluginIds) override;
68     bool ReportPluginBasicData(const std::vector<uint32_t>& pluginIds) override;
69 
70     bool CreateWriter(std::string pluginName, uint32_t bufferSize, int smbFd, int eventFd) override;
71     bool ResetWriter(uint32_t pluginId) override;
72     void SetCommandPoller(const std::shared_ptr<CommandPoller>& p) override;
73     void ResetStartupParam();
74     void ReadShareMemory();
75     void SetHookConfig(const NativeHookConfig& hookConfig);
76 
77 private:
78     void RegisterWriter(const BufferWriterPtr& writer);
79     bool CheckProcess();
80     void CheckProcessName();
81     void SetHookData(HookContext& hookContext, struct timespec ts,
82         std::vector<OHOS::Developtools::NativeDaemon::CallFrame>& callFrames,
83         BatchNativeHookDataPtr& batchNativeHookData);
84     void GetClientConfig(const NativeHookConfig& nativeHookConfig, ClientConfig& clientConfig);
85 
86     std::shared_ptr<HookService> hookService_;
87     std::shared_ptr<CommandPoller> commandPoller_;
88     int agentIndex_ = -1;
89     std::string agentPluginName_;
90     std::unique_ptr<EpollEventPoller> eventPoller_;
91     std::shared_ptr<ShareMemoryBlock> shareMemoryBlock_;
92     std::shared_ptr<EventNotifier> eventNotifier_;
93     NativeHookConfig hookConfig_;
94     std::string smbName_;
95     std::unique_ptr<uint8_t[]> buffer_;
96     StackDataRepeaterPtr stackData_;
97     std::shared_ptr<StackPreprocess> stackPreprocess_;
98     int pid_;
99     bool isRecordAccurately_ = false;
100 };
101 }
102 #endif // AGENT_MANAGER_H