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118 lines
3.3 KiB
118 lines
3.3 KiB
/*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <fstream>
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#include <iostream>
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#include <mutex>
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#include <string>
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#include "common/circular_buffer.h"
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#include "hal/hci_hal.h"
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#include "module.h"
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namespace bluetooth {
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namespace hal {
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class SnoopLogger : public ::bluetooth::Module {
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public:
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static const ModuleFactory Factory;
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static const std::string kBtSnoopLogModeDisabled;
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static const std::string kBtSnoopLogModeFiltered;
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static const std::string kBtSnoopLogModeFull;
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static const std::string kBtSnoopMaxPacketsPerFileProperty;
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static const std::string kIsDebuggableProperty;
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static const std::string kBtSnoopLogModeProperty;
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static const std::string kBtSnoopDefaultLogModeProperty;
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// Put in header for test
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struct PacketHeaderType {
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uint32_t length_original;
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uint32_t length_captured;
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uint32_t flags;
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uint32_t dropped_packets;
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uint64_t timestamp;
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uint8_t type;
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} __attribute__((__packed__));
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// Put in header for test
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struct FileHeaderType {
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uint8_t identification_pattern[8];
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uint32_t version_number;
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uint32_t datalink_type;
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} __attribute__((__packed__));
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// Returns the maximum number of packets per file
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// Changes to this value is only effective after restarting Bluetooth
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static size_t GetMaxPacketsPerFile();
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// Get snoop logger mode based on current system setup
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// Changes to this values is only effective after restarting Bluetooth
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static std::string GetBtSnoopMode();
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// Has to be defined from 1 to 4 per btsnoop format
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enum PacketType {
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CMD = 1,
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ACL = 2,
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SCO = 3,
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EVT = 4,
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ISO = 5,
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};
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enum Direction {
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INCOMING,
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OUTGOING,
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};
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void Capture(const HciPacket& packet, Direction direction, PacketType type);
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protected:
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void ListDependencies(ModuleList* list) override;
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void Start() override;
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void Stop() override;
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DumpsysDataFinisher GetDumpsysData(flatbuffers::FlatBufferBuilder* builder) const override;
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std::string ToString() const override {
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return std::string("SnoopLogger");
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}
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// Visible for testing
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SnoopLogger(
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std::string snoop_log_path,
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std::string snooz_log_path,
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size_t max_packets_per_file,
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const std::string& btsnoop_mode);
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void CloseCurrentSnoopLogFile();
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void OpenNextSnoopLogFile();
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void DumpSnoozLogToFile(const std::vector<std::string>& data) const;
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private:
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std::string snoop_log_path_;
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std::string snooz_log_path_;
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std::ofstream btsnoop_ostream_;
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bool is_enabled_ = false;
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bool is_filtered_ = false;
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size_t max_packets_per_file_;
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common::CircularBuffer<std::string> btsnooz_buffer_;
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size_t packet_counter_ = 0;
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mutable std::recursive_mutex file_mutex_;
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};
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} // namespace hal
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} // namespace bluetooth
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