| // Copyright 2013 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 "chromeos/system/statistics_provider.h" |
| |
| #include <memory> |
| |
| #include "base/bind.h" |
| #include "base/command_line.h" |
| #include "base/containers/flat_map.h" |
| #include "base/files/file_path.h" |
| #include "base/files/file_util.h" |
| #include "base/json/json_file_value_serializer.h" |
| #include "base/location.h" |
| #include "base/logging.h" |
| #include "base/macros.h" |
| #include "base/memory/singleton.h" |
| #include "base/path_service.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_util.h" |
| #include "base/synchronization/cancellation_flag.h" |
| #include "base/synchronization/waitable_event.h" |
| #include "base/sys_info.h" |
| #include "base/task_runner.h" |
| #include "base/task_scheduler/post_task.h" |
| #include "base/task_scheduler/task_traits.h" |
| #include "base/threading/thread_restrictions.h" |
| #include "base/time/time.h" |
| #include "base/values.h" |
| #include "chromeos/app_mode/kiosk_oem_manifest_parser.h" |
| #include "chromeos/chromeos_constants.h" |
| #include "chromeos/chromeos_paths.h" |
| #include "chromeos/chromeos_switches.h" |
| #include "chromeos/system/name_value_pairs_parser.h" |
| |
| namespace chromeos { |
| namespace system { |
| |
| namespace { |
| |
| // Path to the tool used to get system info, and delimiters for the output |
| // format of the tool. |
| const char* kCrosSystemTool[] = { "/usr/bin/crossystem" }; |
| const char kCrosSystemEq[] = "="; |
| const char kCrosSystemDelim[] = "\n"; |
| const char kCrosSystemCommentDelim[] = "#"; |
| const char kCrosSystemValueError[] = "(error)"; |
| |
| const char kHardwareClassCrosSystemKey[] = "hwid"; |
| const char kHardwareClassValueUnknown[] = "unknown"; |
| |
| const char kIsVmCrosSystemKey[] = "inside_vm"; |
| |
| // Key/value delimiters of machine hardware info file. machine-info is generated |
| // only for OOBE and enterprise enrollment and may not be present. See |
| // login-manager/init/machine-info.conf. |
| const char kMachineHardwareInfoEq[] = "="; |
| const char kMachineHardwareInfoDelim[] = " \n"; |
| |
| // File to get ECHO coupon info from, and key/value delimiters of |
| // the file. |
| const char kEchoCouponFile[] = |
| "/mnt/stateful_partition/unencrypted/cache/vpd/echo/vpd_echo.txt"; |
| const char kEchoCouponEq[] = "="; |
| const char kEchoCouponDelim[] = "\n"; |
| |
| // Key/value delimiters for VPD file. |
| const char kVpdEq[] = "="; |
| const char kVpdDelim[] = "\n"; |
| |
| // File to get regional data from. |
| const char kCrosRegions[] = "/usr/share/misc/cros-regions.json"; |
| |
| // Timeout that we should wait for statistics to get loaded |
| const int kTimeoutSecs = 3; |
| |
| // The location of OEM manifest file used to trigger OOBE flow for kiosk mode. |
| const base::CommandLine::CharType kOemManifestFilePath[] = |
| FILE_PATH_LITERAL("/usr/share/oem/oobe/manifest.json"); |
| |
| // Items in region dictionary. |
| const char kKeyboardsPath[] = "keyboards"; |
| const char kLocalesPath[] = "locales"; |
| const char kTimeZonesPath[] = "time_zones"; |
| |
| // These are the machine serial number keys that we check in order until we find |
| // a non-empty serial number. |
| // |
| // On older Samsung devices the VPD contains two serial numbers: "Product_S/N" |
| // and "serial_number" which are based on the same value except that the latter |
| // has a letter appended that serves as a check digit. Unfortunately, the |
| // sticker on the device packaging didn't include that check digit (the sticker |
| // on the device did though!). The former sticker was the source of the serial |
| // number used by device management service, so we preferred "Product_S/N" over |
| // "serial_number" to match the server. As an unintended consequence, older |
| // Samsung devices display and report a serial number that doesn't match the |
| // sticker on the device (the check digit is missing). |
| // |
| // "Product_S/N" is known to be used on celes, lumpy, pi, pit, snow, winky and |
| // some kevin devices and thus needs to be supported until AUE of these |
| // devices. It's known *not* to be present on caroline. |
| // TODO(tnagel): Remove "Product_S/N" after all devices that have it are AUE. |
| const char* const kMachineInfoSerialNumberKeys[] = { |
| "Product_S/N", // Samsung legacy |
| kSerialNumberKey, // VPD v2+ devices |
| }; |
| |
| // Gets ListValue from given |dictionary| by given |key| and (unless |result| is |
| // nullptr) sets |result| to a string with all list values joined by ','. |
| // Returns true on success. |
| bool JoinListValuesToString(const base::DictionaryValue* dictionary, |
| const std::string key, |
| std::string* result) { |
| const base::ListValue* list = nullptr; |
| if (!dictionary->GetListWithoutPathExpansion(key, &list)) |
| return false; |
| |
| std::string buffer; |
| bool first = true; |
| for (const auto& v : *list) { |
| std::string value; |
| if (!v.GetAsString(&value)) |
| return false; |
| |
| if (first) |
| first = false; |
| else |
| buffer += ','; |
| |
| buffer += value; |
| } |
| if (result != nullptr) |
| *result = buffer; |
| return true; |
| } |
| |
| // Gets ListValue from given |dictionary| by given |key| and (unless |result| is |
| // nullptr) sets |result| to the first value as string. Returns true on |
| // success. |
| bool GetFirstListValueAsString(const base::DictionaryValue* dictionary, |
| const std::string key, |
| std::string* result) { |
| const base::ListValue* list = nullptr; |
| if (!dictionary->GetListWithoutPathExpansion(key, &list)) |
| return false; |
| |
| std::string value; |
| if (!list->GetString(0, &value)) |
| return false; |
| if (result != nullptr) |
| *result = value; |
| return true; |
| } |
| |
| bool GetKeyboardLayoutFromRegionalData(const base::DictionaryValue* region_dict, |
| std::string* result) { |
| return JoinListValuesToString(region_dict, kKeyboardsPath, result); |
| } |
| |
| bool GetInitialTimezoneFromRegionalData( |
| const base::DictionaryValue* region_dict, |
| std::string* result) { |
| return GetFirstListValueAsString(region_dict, kTimeZonesPath, result); |
| } |
| |
| bool GetInitialLocaleFromRegionalData(const base::DictionaryValue* region_dict, |
| std::string* result) { |
| return JoinListValuesToString(region_dict, kLocalesPath, result); |
| } |
| |
| } // namespace |
| |
| // Key values for GetMachineStatistic()/GetMachineFlag() calls. |
| const char kActivateDateKey[] = "ActivateDate"; |
| const char kCheckEnrollmentKey[] = "check_enrollment"; |
| const char kCustomizationIdKey[] = "customization_id"; |
| const char kDevSwitchBootKey[] = "devsw_boot"; |
| const char kDevSwitchBootValueDev[] = "1"; |
| const char kDevSwitchBootValueVerified[] = "0"; |
| const char kFirmwareTypeKey[] = "mainfw_type"; |
| const char kFirmwareTypeValueDeveloper[] = "developer"; |
| const char kFirmwareTypeValueNonchrome[] = "nonchrome"; |
| const char kFirmwareTypeValueNormal[] = "normal"; |
| const char kHardwareClassKey[] = "hardware_class"; |
| const char kIsVmKey[] = "is_vm"; |
| const char kIsVmValueFalse[] = "0"; |
| const char kIsVmValueTrue[] = "1"; |
| const char kOffersCouponCodeKey[] = "ubind_attribute"; |
| const char kOffersGroupCodeKey[] = "gbind_attribute"; |
| const char kRlzBrandCodeKey[] = "rlz_brand_code"; |
| const char kRegionKey[] = "region"; |
| const char kSerialNumberKey[] = "serial_number"; |
| const char kInitialLocaleKey[] = "initial_locale"; |
| const char kInitialTimezoneKey[] = "initial_timezone"; |
| const char kKeyboardLayoutKey[] = "keyboard_layout"; |
| |
| // OEM specific statistics. Must be prefixed with "oem_". |
| const char kOemCanExitEnterpriseEnrollmentKey[] = "oem_can_exit_enrollment"; |
| const char kOemDeviceRequisitionKey[] = "oem_device_requisition"; |
| const char kOemIsEnterpriseManagedKey[] = "oem_enterprise_managed"; |
| const char kOemKeyboardDrivenOobeKey[] = "oem_keyboard_driven_oobe"; |
| |
| bool HasOemPrefix(const std::string& name) { |
| return name.substr(0, 4) == "oem_"; |
| } |
| |
| // The StatisticsProvider implementation used in production. |
| class StatisticsProviderImpl : public StatisticsProvider { |
| public: |
| // StatisticsProvider implementation: |
| void StartLoadingMachineStatistics(bool load_oem_manifest) override; |
| bool GetMachineStatistic(const std::string& name, |
| std::string* result) override; |
| bool GetMachineFlag(const std::string& name, bool* result) override; |
| void Shutdown() override; |
| |
| // Returns true when Chrome OS is running in a VM. NOTE: if crossystem is not |
| // installed it will return false even if Chrome OS is running in a VM. |
| bool IsRunningOnVm() override; |
| |
| static StatisticsProviderImpl* GetInstance(); |
| |
| protected: |
| typedef std::map<std::string, bool> MachineFlags; |
| typedef bool (*RegionDataExtractor)(const base::DictionaryValue*, |
| std::string*); |
| friend struct base::DefaultSingletonTraits<StatisticsProviderImpl>; |
| |
| StatisticsProviderImpl(); |
| ~StatisticsProviderImpl() override; |
| |
| // Waits up to |kTimeoutSecs| for statistics to be loaded. Returns true if |
| // they were loaded successfully. |
| bool WaitForStatisticsLoaded(); |
| |
| // Loads the machine statistics off of disk. Runs on the file thread. |
| void LoadMachineStatistics(bool load_oem_manifest); |
| |
| // Loads the OEM statistics off of disk. Runs on the file thread. |
| void LoadOemManifestFromFile(const base::FilePath& file); |
| |
| // Loads regional data off of disk. Runs on the file thread. |
| void LoadRegionsFile(const base::FilePath& filename); |
| |
| // Extracts known data from regional_data_; |
| // Returns true on success; |
| bool GetRegionalInformation(const std::string& name, |
| std::string* result) const; |
| |
| // Returns current region dictionary or NULL if not found. |
| const base::DictionaryValue* GetRegionDictionary() const; |
| |
| // Returns extractor from regional_data_extractors_ or nullptr. |
| RegionDataExtractor GetRegionalDataExtractor(const std::string& name) const; |
| |
| bool load_statistics_started_; |
| NameValuePairsParser::NameValueMap machine_info_; |
| MachineFlags machine_flags_; |
| base::CancellationFlag cancellation_flag_; |
| // |on_statistics_loaded_| protects |machine_info_| and |machine_flags_|. |
| base::WaitableEvent on_statistics_loaded_; |
| bool oem_manifest_loaded_; |
| std::string region_; |
| std::unique_ptr<base::Value> regional_data_; |
| base::flat_map<std::string, RegionDataExtractor> regional_data_extractors_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(StatisticsProviderImpl); |
| }; |
| |
| bool StatisticsProviderImpl::WaitForStatisticsLoaded() { |
| CHECK(load_statistics_started_); |
| if (on_statistics_loaded_.IsSignaled()) |
| return true; |
| |
| // Block if the statistics are not loaded yet. Normally this shouldn't |
| // happen except during OOBE. |
| base::Time start_time = base::Time::Now(); |
| base::ThreadRestrictions::ScopedAllowWait allow_wait; |
| on_statistics_loaded_.TimedWait(base::TimeDelta::FromSeconds(kTimeoutSecs)); |
| |
| base::TimeDelta dtime = base::Time::Now() - start_time; |
| if (on_statistics_loaded_.IsSignaled()) { |
| LOG(WARNING) << "Statistics loaded after waiting " |
| << dtime.InMilliseconds() << "ms."; |
| return true; |
| } |
| |
| LOG(ERROR) << "Statistics not loaded after waiting " |
| << dtime.InMilliseconds() << "ms."; |
| return false; |
| } |
| |
| const base::DictionaryValue* StatisticsProviderImpl::GetRegionDictionary() |
| const { |
| const base::DictionaryValue* full_dict = nullptr; |
| if (!regional_data_->GetAsDictionary(&full_dict)) |
| return nullptr; |
| |
| const base::DictionaryValue* region_dict = nullptr; |
| if (!full_dict->GetDictionaryWithoutPathExpansion(region_, ®ion_dict)) |
| return nullptr; |
| |
| return region_dict; |
| } |
| |
| StatisticsProviderImpl::RegionDataExtractor |
| StatisticsProviderImpl::GetRegionalDataExtractor( |
| const std::string& name) const { |
| const auto it = regional_data_extractors_.find(name); |
| if (it == regional_data_extractors_.end()) |
| return nullptr; |
| |
| return it->second; |
| } |
| |
| bool StatisticsProviderImpl::GetRegionalInformation(const std::string& name, |
| std::string* result) const { |
| if (region_.empty() || !regional_data_.get()) |
| return false; |
| |
| const RegionDataExtractor extractor = GetRegionalDataExtractor(name); |
| if (!extractor) |
| return false; |
| |
| const base::DictionaryValue* region_dict = GetRegionDictionary(); |
| if (!region_dict) |
| return false; |
| |
| return extractor(region_dict, result); |
| } |
| |
| bool StatisticsProviderImpl::GetMachineStatistic(const std::string& name, |
| std::string* result) { |
| VLOG(1) << "Machine Statistic requested: " << name; |
| if (!WaitForStatisticsLoaded()) { |
| LOG(ERROR) << "GetMachineStatistic called before load started: " << name; |
| return false; |
| } |
| |
| base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); |
| std::string cros_regions_mode; |
| if (command_line->HasSwitch(chromeos::switches::kCrosRegionsMode)) { |
| cros_regions_mode = |
| command_line->GetSwitchValueASCII(chromeos::switches::kCrosRegionsMode); |
| } |
| |
| // These two modes override existing machine statistics keys. |
| // By default (cros_regions_mode is empty), the same keys are emulated if |
| // they do not exist in machine statistics. |
| if (cros_regions_mode == chromeos::switches::kCrosRegionsModeOverride || |
| cros_regions_mode == chromeos::switches::kCrosRegionsModeHide) { |
| if (GetRegionalInformation(name, result)) |
| return true; |
| } |
| |
| if (cros_regions_mode == chromeos::switches::kCrosRegionsModeHide && |
| GetRegionalDataExtractor(name)) { |
| return false; |
| } |
| |
| NameValuePairsParser::NameValueMap::iterator iter = machine_info_.find(name); |
| if (iter == machine_info_.end()) { |
| if (GetRegionalInformation(name, result)) |
| return true; |
| if (result != nullptr && |
| base::SysInfo::IsRunningOnChromeOS() && |
| (oem_manifest_loaded_ || !HasOemPrefix(name))) { |
| LOG(WARNING) << "Requested statistic not found: " << name; |
| } |
| return false; |
| } |
| if (result != nullptr) |
| *result = iter->second; |
| return true; |
| } |
| |
| bool StatisticsProviderImpl::GetMachineFlag(const std::string& name, |
| bool* result) { |
| VLOG(1) << "Machine Flag requested: " << name; |
| if (!WaitForStatisticsLoaded()) { |
| LOG(ERROR) << "GetMachineFlag called before load started: " << name; |
| return false; |
| } |
| |
| MachineFlags::const_iterator iter = machine_flags_.find(name); |
| if (iter == machine_flags_.end()) { |
| if (result != nullptr && |
| base::SysInfo::IsRunningOnChromeOS() && |
| (oem_manifest_loaded_ || !HasOemPrefix(name))) { |
| LOG(WARNING) << "Requested machine flag not found: " << name; |
| } |
| return false; |
| } |
| if (result != nullptr) |
| *result = iter->second; |
| return true; |
| } |
| |
| void StatisticsProviderImpl::Shutdown() { |
| cancellation_flag_.Set(); // Cancel any pending loads |
| } |
| |
| bool StatisticsProviderImpl::IsRunningOnVm() { |
| if (!base::SysInfo::IsRunningOnChromeOS()) |
| return false; |
| std::string is_vm; |
| return GetMachineStatistic(kIsVmKey, &is_vm) && is_vm == kIsVmValueTrue; |
| } |
| |
| StatisticsProviderImpl::StatisticsProviderImpl() |
| : load_statistics_started_(false), |
| on_statistics_loaded_(base::WaitableEvent::ResetPolicy::MANUAL, |
| base::WaitableEvent::InitialState::NOT_SIGNALED), |
| oem_manifest_loaded_(false) { |
| regional_data_extractors_[kInitialLocaleKey] = |
| &GetInitialLocaleFromRegionalData; |
| regional_data_extractors_[kKeyboardLayoutKey] = |
| &GetKeyboardLayoutFromRegionalData; |
| regional_data_extractors_[kInitialTimezoneKey] = |
| &GetInitialTimezoneFromRegionalData; |
| } |
| |
| StatisticsProviderImpl::~StatisticsProviderImpl() { |
| } |
| |
| void StatisticsProviderImpl::StartLoadingMachineStatistics( |
| bool load_oem_manifest) { |
| CHECK(!load_statistics_started_); |
| load_statistics_started_ = true; |
| |
| VLOG(1) << "Started loading statistics. Load OEM Manifest: " |
| << load_oem_manifest; |
| |
| base::PostTaskWithTraits( |
| FROM_HERE, |
| {base::MayBlock(), base::TaskPriority::BACKGROUND, |
| base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN}, |
| base::BindOnce(&StatisticsProviderImpl::LoadMachineStatistics, |
| base::Unretained(this), load_oem_manifest)); |
| } |
| |
| void StatisticsProviderImpl::LoadMachineStatistics(bool load_oem_manifest) { |
| // Run from the file task runner. StatisticsProviderImpl is a Singleton<> and |
| // will not be destroyed until after threads have been stopped, so this test |
| // is always safe. |
| if (cancellation_flag_.IsSet()) |
| return; |
| |
| NameValuePairsParser parser(&machine_info_); |
| if (base::SysInfo::IsRunningOnChromeOS()) { |
| // Parse all of the key/value pairs from the crossystem tool. |
| if (!parser.ParseNameValuePairsFromTool(arraysize(kCrosSystemTool), |
| kCrosSystemTool, |
| kCrosSystemEq, |
| kCrosSystemDelim, |
| kCrosSystemCommentDelim)) { |
| LOG(ERROR) << "Errors parsing output from: " << kCrosSystemTool; |
| } |
| } |
| |
| base::FilePath machine_info_path; |
| PathService::Get(chromeos::FILE_MACHINE_INFO, &machine_info_path); |
| if (!base::SysInfo::IsRunningOnChromeOS() && |
| !base::PathExists(machine_info_path)) { |
| // Use time value to create an unique stub serial because clashes of the |
| // same serial for the same domain invalidate earlier enrollments. Persist |
| // to disk to keep it constant across restarts (required for re-enrollment |
| // testing). |
| std::string stub_contents = |
| "\"serial_number\"=\"stub_" + |
| base::Int64ToString(base::Time::Now().ToJavaTime()) + "\"\n"; |
| int bytes_written = base::WriteFile( |
| machine_info_path, stub_contents.c_str(), stub_contents.size()); |
| if (bytes_written < static_cast<int>(stub_contents.size())) { |
| PLOG(ERROR) << "Error writing machine info stub " |
| << machine_info_path.value(); |
| } |
| } |
| |
| base::FilePath vpd_path; |
| PathService::Get(chromeos::FILE_VPD, &vpd_path); |
| if (!base::SysInfo::IsRunningOnChromeOS() && !base::PathExists(vpd_path)) { |
| std::string stub_contents = "\"ActivateDate\"=\"2000-01\"\n"; |
| int bytes_written = |
| base::WriteFile(vpd_path, stub_contents.c_str(), stub_contents.size()); |
| if (bytes_written < static_cast<int>(stub_contents.size())) { |
| PLOG(ERROR) << "Error writing vpd stub " << vpd_path.value(); |
| } |
| } |
| |
| parser.GetNameValuePairsFromFile(machine_info_path, |
| kMachineHardwareInfoEq, |
| kMachineHardwareInfoDelim); |
| parser.GetNameValuePairsFromFile(base::FilePath(kEchoCouponFile), |
| kEchoCouponEq, |
| kEchoCouponDelim); |
| parser.GetNameValuePairsFromFile(vpd_path, |
| kVpdEq, |
| kVpdDelim); |
| |
| // Ensure that the hardware class key is present with the expected |
| // key name, and if it couldn't be retrieved, that the value is "unknown". |
| std::string hardware_class = machine_info_[kHardwareClassCrosSystemKey]; |
| if (hardware_class.empty() || hardware_class == kCrosSystemValueError) { |
| machine_info_[kHardwareClassKey] = kHardwareClassValueUnknown; |
| } else { |
| machine_info_[kHardwareClassKey] = hardware_class; |
| } |
| |
| if (base::SysInfo::IsRunningOnChromeOS()) { |
| // By default, assume that this is *not* a VM. If crossystem is not present, |
| // report that we are not in a VM. |
| machine_info_[kIsVmKey] = kIsVmValueFalse; |
| const auto is_vm_iter = machine_info_.find(kIsVmCrosSystemKey); |
| if (is_vm_iter != machine_info_.end() && |
| is_vm_iter->second == kIsVmValueTrue) { |
| machine_info_[kIsVmKey] = kIsVmValueTrue; |
| } |
| } |
| |
| if (load_oem_manifest) { |
| // If kAppOemManifestFile switch is specified, load OEM Manifest file. |
| base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); |
| if (command_line->HasSwitch(switches::kAppOemManifestFile)) { |
| LoadOemManifestFromFile( |
| command_line->GetSwitchValuePath(switches::kAppOemManifestFile)); |
| } else if (base::SysInfo::IsRunningOnChromeOS()) { |
| LoadOemManifestFromFile(base::FilePath(kOemManifestFilePath)); |
| } |
| } |
| |
| LoadRegionsFile(base::FilePath(kCrosRegions)); |
| |
| // Set region |
| const auto region_iter = machine_info_.find(kRegionKey); |
| if (region_iter != machine_info_.end()) |
| region_ = region_iter->second; |
| else |
| region_ = std::string(); |
| |
| base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); |
| if (command_line->HasSwitch(chromeos::switches::kCrosRegion)) { |
| region_ = |
| command_line->GetSwitchValueASCII(chromeos::switches::kCrosRegion); |
| machine_info_[kRegionKey] = region_; |
| LOG(WARNING) << "CrOS region set to '" << region_ << "'"; |
| } |
| |
| if (regional_data_.get() && !region_.empty() && !GetRegionDictionary()) |
| LOG(ERROR) << "Bad regional data: '" << region_ << "' << not found."; |
| |
| // Finished loading the statistics. |
| on_statistics_loaded_.Signal(); |
| VLOG(1) << "Finished loading statistics."; |
| } |
| |
| void StatisticsProviderImpl::LoadRegionsFile(const base::FilePath& filename) { |
| JSONFileValueDeserializer regions_file(filename); |
| int regions_error_code = 0; |
| std::string regions_error_message; |
| regional_data_ = |
| regions_file.Deserialize(®ions_error_code, ®ions_error_message); |
| if (!regional_data_.get()) { |
| if (base::SysInfo::IsRunningOnChromeOS()) |
| LOG(ERROR) << "Failed to load regions file '" << filename.value() |
| << "': error='" << regions_error_message << "'"; |
| |
| return; |
| } |
| const base::DictionaryValue* full_dict = nullptr; |
| if (!regional_data_->GetAsDictionary(&full_dict)) { |
| LOG(ERROR) << "Bad regions file '" << filename.value() |
| << "': not a dictionary."; |
| regional_data_.reset(); |
| } |
| } |
| |
| void StatisticsProviderImpl::LoadOemManifestFromFile( |
| const base::FilePath& file) { |
| // Called from LoadMachineStatistics. Check cancellation_flag_ again here. |
| if (cancellation_flag_.IsSet()) |
| return; |
| |
| KioskOemManifestParser::Manifest oem_manifest; |
| if (!KioskOemManifestParser::Load(file, &oem_manifest)) { |
| LOG(WARNING) << "Unable to load OEM Manifest file: " << file.value(); |
| return; |
| } |
| machine_info_[kOemDeviceRequisitionKey] = |
| oem_manifest.device_requisition; |
| machine_flags_[kOemIsEnterpriseManagedKey] = |
| oem_manifest.enterprise_managed; |
| machine_flags_[kOemCanExitEnterpriseEnrollmentKey] = |
| oem_manifest.can_exit_enrollment; |
| machine_flags_[kOemKeyboardDrivenOobeKey] = |
| oem_manifest.keyboard_driven_oobe; |
| |
| oem_manifest_loaded_ = true; |
| VLOG(1) << "Loaded OEM Manifest statistics from " << file.value(); |
| } |
| |
| StatisticsProviderImpl* StatisticsProviderImpl::GetInstance() { |
| return base::Singleton< |
| StatisticsProviderImpl, |
| base::DefaultSingletonTraits<StatisticsProviderImpl>>::get(); |
| } |
| |
| std::string StatisticsProvider::GetEnterpriseMachineID() { |
| std::string machine_id; |
| for (const char* key : kMachineInfoSerialNumberKeys) { |
| if (GetMachineStatistic(key, &machine_id) && !machine_id.empty()) { |
| break; |
| } |
| } |
| return machine_id; |
| } |
| |
| static StatisticsProvider* g_test_statistics_provider = NULL; |
| |
| // static |
| StatisticsProvider* StatisticsProvider::GetInstance() { |
| if (g_test_statistics_provider) |
| return g_test_statistics_provider; |
| return StatisticsProviderImpl::GetInstance(); |
| } |
| |
| // static |
| void StatisticsProvider::SetTestProvider(StatisticsProvider* test_provider) { |
| g_test_statistics_provider = test_provider; |
| } |
| |
| } // namespace system |
| } // namespace chromeos |