| // Copyright (c) 2013 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // The kernel warning collector gathers logs from kernel warnings. |
| // Anomaly detector runs the kernel warning collector when it detects strings |
| // matching the expected warning pattern in /var/log/messages. |
| |
| #ifndef CRASH_REPORTER_KERNEL_WARNING_COLLECTOR_H_ |
| #define CRASH_REPORTER_KERNEL_WARNING_COLLECTOR_H_ |
| |
| #include <string> |
| |
| #include <base/macros.h> |
| #include <gtest/gtest_prod.h> // for FRIEND_TEST |
| |
| #include "crash-reporter/crash_collector.h" |
| |
| // Kernel warning collector. |
| class KernelWarningCollector : public CrashCollector { |
| public: |
| enum WarningType { |
| kGeneric, |
| kWifi, |
| kSMMUFault, |
| kSuspend, |
| // Iwlwifi is the name of Intel WiFi driver that we want to collect its |
| // error dumps. |
| kIwlwifi, |
| // Ath10k is the name of Qualcomm WiFi driver that we want to collect its |
| // error dumps. |
| kAth10k, |
| }; |
| |
| KernelWarningCollector(); |
| KernelWarningCollector(const KernelWarningCollector&) = delete; |
| KernelWarningCollector& operator=(const KernelWarningCollector&) = delete; |
| |
| ~KernelWarningCollector() override; |
| |
| // Collects warning. |
| bool Collect(int weight, WarningType type); |
| |
| static CollectorInfo GetHandlerInfo(int32_t weight, |
| bool kernel_warning, |
| bool kernel_wifi_warning, |
| bool kernel_smmu_fault, |
| bool kernel_suspend_warning, |
| bool kernel_iwlwifi_error, |
| bool kernel_ath10k_error); |
| |
| protected: |
| std::string warning_report_path_; |
| |
| private: |
| friend class KernelWarningCollectorTest; |
| FRIEND_TEST(KernelWarningCollectorTest, CollectOK); |
| |
| // Reads the full content of the kernel warn dump and its signature. |
| bool LoadKernelWarning(std::string* content, |
| std::string* signature, |
| std::string* func_name, |
| WarningType type); |
| bool ExtractSignature(const std::string& content, |
| std::string* signature, |
| std::string* func_name); |
| bool ExtractIwlwifiSignature(const std::string& content, |
| std::string* signature, |
| std::string* func_name); |
| bool ExtractSMMUFaultSignature(const std::string& content, |
| std::string* signature, |
| std::string* func_name); |
| bool ExtractAth10kSignature(const std::string& content, |
| std::string* signature, |
| std::string* func_name); |
| }; |
| |
| #endif // CRASH_REPORTER_KERNEL_WARNING_COLLECTOR_H_ |