| // Copyright (c) 2012 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. |
| |
| #include <fcntl.h> // for open |
| #include <sys/mount.h> // for MS_SLAVE |
| |
| #include <string> |
| #include <utility> |
| |
| #include <base/bind.h> |
| #include <base/bind_helpers.h> |
| #include <base/callback.h> |
| #include <base/files/file_util.h> |
| #include <base/logging.h> |
| #include <base/files/file_descriptor_watcher_posix.h> |
| #include <base/strings/stringprintf.h> |
| #include <base/task/single_thread_task_executor.h> |
| #include <base/optional.h> |
| #include <brillo/flag_helper.h> |
| #include <brillo/syslog_logging.h> |
| #include <libminijail.h> |
| #include <metrics/metrics_library.h> |
| |
| #include "crash-reporter/arc_collector.h" |
| #include "crash-reporter/arc_util.h" |
| #include "crash-reporter/arcvm_kernel_collector.h" |
| #include "crash-reporter/arcvm_native_collector.h" |
| #include "crash-reporter/bert_collector.h" |
| #include "crash-reporter/chrome_collector.h" |
| #include "crash-reporter/constants.h" |
| #include "crash-reporter/crash_reporter_failure_collector.h" |
| #include "crash-reporter/ec_collector.h" |
| #include "crash-reporter/ephemeral_crash_collector.h" |
| #include "crash-reporter/generic_failure_collector.h" |
| #include "crash-reporter/kernel_collector.h" |
| #include "crash-reporter/kernel_warning_collector.h" |
| #include "crash-reporter/missed_crash_collector.h" |
| #include "crash-reporter/mount_failure_collector.h" |
| #include "crash-reporter/paths.h" |
| #include "crash-reporter/selinux_violation_collector.h" |
| #include "crash-reporter/udev_collector.h" |
| #include "crash-reporter/unclean_shutdown_collector.h" |
| #include "crash-reporter/user_collector.h" |
| #include "crash-reporter/util.h" |
| #include "crash-reporter/vm_collector.h" |
| |
| using base::FilePath; |
| using base::StringPrintf; |
| |
| namespace { |
| |
| const char kKernelCrashDetected[] = |
| "/run/metrics/external/crash-reporter/kernel-crash-detected"; |
| const char kUncleanShutdownDetected[] = |
| "/run/metrics/external/crash-reporter/unclean-shutdown-detected"; |
| const char kBootCollectorDone[] = "/run/crash_reporter/boot-collector-done"; |
| |
| // Used for consent verification. |
| // TODO(mutexlox): Declare this in main and plumb it through via parameters. |
| MetricsLibrary s_metrics_lib; |
| |
| bool TouchFile(const FilePath& file_path) { |
| return base::WriteFile(file_path, "", 0) == 0; |
| } |
| |
| bool SetUpLockFile() { |
| base::FilePath lock_file = paths::Get(paths::kCrashSenderLockFile); |
| if (!TouchFile(lock_file)) { |
| LOG(ERROR) << "Could not touch lock file: " << lock_file.value(); |
| return false; |
| } |
| |
| // Allow crash-access group to read and write crash lock file. |
| return util::SetGroupAndPermissions(lock_file, constants::kCrashGroupName, |
| /*execute=*/false); |
| } |
| |
| // Set up necessary crash reporter state. |
| // This function will change ownership and permissions on many files (to allow |
| // `crash` to read/write them) so it MUST run as root. |
| // Return true on success. |
| bool InitializeSystem(UserCollector* user_collector, bool early) { |
| // Try to create the lock file for crash_sender. Creating this early ensures |
| // that no one else can make a directory or such with this name. If the lock |
| // file isn't a normal file, crash_sender will never work correctly. |
| if (!SetUpLockFile()) { |
| LOG(ERROR) << "Couldn't set up lock file"; |
| return false; |
| } |
| |
| // Set up all the common crash state directories first. If we can't guarantee |
| // these basic paths, just give up & don't turn on anything else. |
| if (!CrashCollector::InitializeSystemCrashDirectories(early)) { |
| return false; |
| } |
| |
| // Set up metrics flag directory. Returns with non-zero if we cannot create |
| // it. |
| if (!CrashCollector::InitializeSystemMetricsDirectories()) { |
| return false; |
| } |
| |
| return user_collector->Enable(early); |
| } |
| |
| int BootCollect(bool always_allow_feedback, |
| KernelCollector* kernel_collector, |
| ECCollector* ec_collector, |
| BERTCollector* bert_collector, |
| UncleanShutdownCollector* unclean_shutdown_collector, |
| EphemeralCrashCollector* ephemeral_crash_collector) { |
| bool was_kernel_crash = false; |
| bool was_unclean_shutdown = false; |
| LOG(INFO) << "Running boot collector"; |
| |
| if (always_allow_feedback || util::IsFeedbackAllowed(&s_metrics_lib)) { |
| /* TODO(drinkcat): Distinguish between EC crash and unclean shutdown. */ |
| ec_collector->Collect(); |
| |
| // Invoke to collect firmware bert dump. |
| bert_collector->Collect(); |
| |
| kernel_collector->Enable(); |
| if (kernel_collector->is_enabled()) { |
| was_kernel_crash = kernel_collector->Collect(); |
| } |
| was_unclean_shutdown = unclean_shutdown_collector->Collect(); |
| |
| // Touch a file to notify the metrics daemon that a kernel |
| // crash has been detected so that it can log the time since |
| // the last kernel crash. |
| if (was_kernel_crash) { |
| TouchFile(FilePath(kKernelCrashDetected)); |
| } else if (was_unclean_shutdown) { |
| // We only count an unclean shutdown if it did not come with |
| // an associated kernel crash. |
| TouchFile(FilePath(kUncleanShutdownDetected)); |
| } |
| ephemeral_crash_collector->Collect(); |
| } else if (ephemeral_crash_collector->SkipConsent()) { |
| ephemeral_crash_collector->Collect(); |
| } |
| |
| // The below calls happen independently of metrics consent, as they do not |
| // generate any crash reports. |
| |
| // Must enable the unclean shutdown collector *after* collecting. |
| unclean_shutdown_collector->Enable(); |
| |
| // Copy lsb-release and os-release into system crash spool. Done after |
| // collecting so that boot-time collected crashes will be associated with the |
| // previous boot. |
| unclean_shutdown_collector->SaveVersionData(); |
| |
| // Presence of this files unblocks powerd from performing lid-closed action |
| // (crbug.com/988831). |
| TouchFile(FilePath(kBootCollectorDone)); |
| |
| return 0; |
| } |
| |
| // Ensure stdout, stdin, and stderr are open file descriptors. If |
| // they are not, any code which writes to stderr/stdout may write out |
| // to files opened during execution. In particular, when |
| // crash_reporter is run by the kernel coredump pipe handler (via |
| // kthread_create/kernel_execve), it will not have file table entries |
| // 1 and 2 (stdout and stderr) populated. We populate them here. |
| void OpenStandardFileDescriptors() { |
| int new_fd = -1; |
| // We open /dev/null to fill in any of the standard [0, 2] file |
| // descriptors. We leave these open for the duration of the |
| // process. This works because open returns the lowest numbered |
| // invalid fd. |
| do { |
| new_fd = open("/dev/null", 0); |
| CHECK_GE(new_fd, 0) << "Unable to open /dev/null"; |
| } while (new_fd >= 0 && new_fd <= 2); |
| close(new_fd); |
| } |
| |
| // Reduce privs that we don't need. But we still need: |
| // - The top most /proc to pull details out of it. |
| // - Read access to the crashing process's memory (regardless of user). |
| // - Write access to the crash spool dir. |
| void EnterSandbox(bool write_proc, bool log_to_stderr) { |
| // If we're not root, we won't be able to jail ourselves (well, we could if |
| // we used user namespaces, but maybe later). Need to double check handling |
| // when called by chrome to process its crashes. |
| if (getuid() != 0) |
| return; |
| |
| struct minijail* j = minijail_new(); |
| minijail_namespace_ipc(j); |
| minijail_namespace_uts(j); |
| minijail_namespace_net(j); |
| minijail_namespace_vfs(j); |
| // Remount mounts as MS_SLAVE to prevent crash_reporter from holding on to |
| // mounts that might be unmounted in the root mount namespace. |
| minijail_remount_mode(j, MS_SLAVE); |
| minijail_mount_tmp(j); |
| minijail_mount_dev(j); |
| if (!log_to_stderr) |
| minijail_bind(j, "/dev/log", "/dev/log", 0); |
| minijail_no_new_privs(j); |
| minijail_new_session_keyring(j); |
| |
| // If we're initializing the system, we need to write to /proc/sys/. |
| if (!write_proc) { |
| minijail_remount_proc_readonly(j); |
| } |
| |
| minijail_enter(j); |
| minijail_destroy(j); |
| } |
| |
| } // namespace |
| |
| // Information to invoke a specific call on a collector. |
| struct InvocationInfo { |
| // True iff this callback should be invoked. |
| // Once this is true and we invoke the associated callback, main() returns, |
| // so only one handler can run for each execution of crash_reporter. |
| bool should_handle; |
| // Callback to invoke if |should_handle| is true. (can be null). |
| base::RepeatingCallback<bool()> cb; |
| }; |
| |
| // Information required to initialize and invoke a collector |
| struct CollectorInfo { |
| // An un-owned pointer to the collector |
| CrashCollector* collector; |
| // Initialization function. If none is specified, invoke the default |
| // crash_collector Initialize(). |
| base::RepeatingClosure init; |
| // List of handlers with associated conditions. |
| // If a particular condition is true, run init and the associated handler (if |
| // any). If there is no associated handler, keep going. |
| std::vector<InvocationInfo> handlers; |
| }; |
| |
| int main(int argc, char* argv[]) { |
| DEFINE_bool(init, false, "Initialize crash logging"); |
| DEFINE_bool(boot_collect, false, "Run per-boot crash collection tasks"); |
| DEFINE_bool(clean_shutdown, false, "Signal clean shutdown"); |
| DEFINE_bool(mount_failure, false, "Report mount failure"); |
| DEFINE_bool(umount_failure, false, "Report umount failure"); |
| DEFINE_string(mount_device, "", |
| "Device that failed to mount. Used with --mount_failure and " |
| "--umount_failure"); |
| DEFINE_bool(ephemeral_collect, false, |
| "Move crash reports to more persistent storage if available " |
| "(tmpfs -> reboot vault) or (tmpfs/reboot vault -> encstateful)"); |
| DEFINE_bool(crash_test, false, "Crash test"); |
| DEFINE_bool(early, false, |
| "Modifies crash-reporter to work during early boot"); |
| DEFINE_bool(preserve_across_clobber, false, |
| "Persist early user crash reports across clobbers."); |
| DEFINE_string(user, "", "User crash info (pid:signal:exec_name)"); |
| DEFINE_string(udev, "", "Udev event description (type:device:subsystem)"); |
| DEFINE_bool(kernel_warning, false, "Report collected kernel warning"); |
| DEFINE_bool(kernel_iwlwifi_error, false, |
| "Report collected kernel iwlwifi error"); |
| DEFINE_bool(kernel_wifi_warning, false, |
| "Report collected kernel wifi warning"); |
| DEFINE_bool(kernel_smmu_fault, false, "Report collected kernel smmu faults"); |
| DEFINE_bool(kernel_suspend_warning, false, |
| "Report collected kernel suspend warning"); |
| DEFINE_bool(missed_chrome_crash, false, |
| "Report that we missed a Chrome crash"); |
| DEFINE_int32(recent_miss_count, -1, |
| "For missed_chrome_crash, how many Chrome crashes have we " |
| "missed over the last 1 minute"); |
| DEFINE_int32(recent_match_count, -1, |
| "For missed_chrome_crash, how many Chrome crashes have we " |
| "matched over the last 1 minute"); |
| DEFINE_int32(pending_miss_count, -1, |
| "For missed_chrome_crash, how many Chrome crashes are we " |
| "tracking that might be counted as a miss soon"); |
| DEFINE_bool(log_to_stderr, false, "Log to stderr instead of syslog."); |
| DEFINE_string(arc_service_failure, "", |
| "The specific ARC service name that failed"); |
| DEFINE_bool(suspend_failure, false, "Report collected suspend failure logs."); |
| DEFINE_bool(vm_crash, false, "Report collected from VM crash"); |
| DEFINE_int32(vm_pid, -1, "PID of the main VM process"); |
| DEFINE_bool(crash_reporter_crashed, false, |
| "Report crash_reporter itself crashing"); |
| DEFINE_string(service_failure, "", "The specific service name that failed"); |
| DEFINE_bool(selinux_violation, false, "Report collected SELinux violation"); |
| // TODO(crbug.com/1000398): Remove --chrome flag after Chrome switches from |
| // breakpad to crashpad. |
| // Note: --chrome is being replaced by --chrome_memfd; |
| // --chrome_dump_dir is only used for tests and only used when |
| // --chrome_memfd is used and not when --chrome is used. |
| DEFINE_string(chrome, "", "Chrome crash dump file"); |
| DEFINE_int32(chrome_memfd, -1, "Chrome crash dump memfd"); |
| DEFINE_string(chrome_dump_dir, "", |
| "Directory to write Chrome minidumps, used for tests only"); |
| DEFINE_int32(pid, -1, "PID of crashing process"); |
| DEFINE_int32(uid, -1, "UID of crashing process"); |
| DEFINE_string(exe, "", "Executable name of crashing process"); |
| DEFINE_string(error_key, "", |
| "Key for error reports. Replaces exe for some errors that " |
| "aren't tied to an executable. Unlike exe, this is not " |
| "uploaded as part of the crash report."); |
| DEFINE_int64(crash_loop_before, -1, |
| "UNIX timestamp. If invoked before this time, use the special " |
| "login-crash-loop handling system. (Keep crash report in memory " |
| "and then pass to debugd for immediate upload.)"); |
| DEFINE_bool(core2md_failure, false, "Core2md failure test"); |
| DEFINE_bool(directory_failure, false, "Spool directory failure test"); |
| DEFINE_bool( |
| always_allow_feedback, false, |
| "Force if feedback is allowed check to return true, used for tests only"); |
| #if USE_CHEETS |
| DEFINE_string(arc_java_crash, "", |
| "Read Java crash log of the given type from standard input"); |
| DEFINE_string(arc_device, "", "Metadata for ARC crashes"); |
| DEFINE_string(arc_board, "", "Metadata for ARC crashes"); |
| DEFINE_string(arc_cpu_abi, "", "Metadata for ARC crashes"); |
| DEFINE_string(arc_fingerprint, "", "Metadata for ARC crashes"); |
| DEFINE_bool(arc_is_arcvm, false, "Is ARCVM"); |
| DEFINE_bool(arc_native, false, "ARC Native Crash"); |
| DEFINE_int64(arc_native_time, -1, |
| "UNIX timestamp of the time when the native crash happened. " |
| "Metadata for ARCVM native crashes"); |
| DEFINE_bool(arc_kernel, false, "ARC Kernel Crash"); |
| #endif |
| |
| OpenStandardFileDescriptors(); |
| FilePath my_path = base::MakeAbsoluteFilePath(FilePath(argv[0])); |
| brillo::FlagHelper::Init(argc, argv, "Chromium OS Crash Reporter"); |
| |
| base::SingleThreadTaskExecutor task_executor(base::MessagePumpType::IO); |
| base::FileDescriptorWatcher watcher(task_executor.task_runner()); |
| |
| // In certain cases, /dev/log may not be available: log to stderr instead. |
| if (FLAGS_log_to_stderr) { |
| brillo::InitLog(brillo::kLogToStderr); |
| } else { |
| brillo::OpenLog(my_path.BaseName().value().c_str(), true); |
| brillo::InitLog(brillo::kLogToSyslog); |
| } |
| |
| if (util::SkipCrashCollection(argc, argv)) { |
| return 0; |
| } |
| |
| bool always_allow_feedback = false; |
| if (FLAGS_always_allow_feedback) { |
| CHECK(util::IsTestImage()) << "--always_allow_feedback is only for tests"; |
| LOG(INFO) << "--always_allow_feedback set; skipping consent check"; |
| always_allow_feedback = true; |
| } |
| |
| // Make it possible to test what happens when we crash while handling a crash. |
| if (FLAGS_crash_test) { |
| LOG(ERROR) << "crash_test requested"; |
| *(volatile char*)0 = 0; |
| return 0; |
| } |
| |
| // Now that we've processed the command line, sandbox ourselves. |
| EnterSandbox(FLAGS_init || FLAGS_clean_shutdown, FLAGS_log_to_stderr); |
| |
| // Decide if we should use Crash-Loop sending mode. If session_manager sees |
| // several Chrome crashes in a brief period, it will log the user out. On the |
| // last Chrome startup before it logs the user out, it will set the |
| // --crash_loop_before flag. The value of the flag will be a time_t timestamp |
| // giving the last second at which a crash would be considered a crash loop |
| // and thus log the user out. If we have another crash before that second, |
| // we have detected a crash-loop and we want to invoke special handling |
| // (specifically, we don't want to save the crash in the user's home directory |
| // because that will be inaccessible to crash_sender once the user is logged |
| // out). |
| CrashCollector::CrashSendingMode crash_sending_mode = |
| CrashCollector::kNormalCrashSendMode; |
| if (FLAGS_crash_loop_before >= 0) { |
| base::Time crash_loop_before = |
| base::Time::FromTimeT(static_cast<time_t>(FLAGS_crash_loop_before)); |
| if (base::Time::Now() <= crash_loop_before) { |
| crash_sending_mode = CrashCollector::kCrashLoopSendingMode; |
| LOG(INFO) << "Using crash loop sending mode"; |
| } |
| } |
| |
| UserCollectorBase::CrashAttributes user_crash_attrs; |
| if (!FLAGS_user.empty()) { |
| base::Optional<UserCollectorBase::CrashAttributes> attrs = |
| UserCollectorBase::ParseCrashAttributes(FLAGS_user); |
| if (!attrs.has_value()) { |
| LOG(ERROR) << "Invalid parameter: --user=" << FLAGS_user; |
| return 1; |
| } |
| user_crash_attrs = *attrs; |
| } |
| |
| std::vector<CollectorInfo> collectors; |
| #if USE_CHEETS |
| ArcvmNativeCollector arcvm_native_collector; |
| collectors.push_back({ |
| .collector = &arcvm_native_collector, |
| .handlers = {{ |
| // This handles native crashes of ARCVM. |
| .should_handle = FLAGS_arc_is_arcvm && FLAGS_arc_native, |
| .cb = base::BindRepeating( |
| &ArcvmNativeCollector::HandleCrash, |
| base::Unretained(&arcvm_native_collector), |
| arc_util::BuildProperty{.device = FLAGS_arc_device, |
| .board = FLAGS_arc_board, |
| .cpu_abi = FLAGS_arc_cpu_abi, |
| .fingerprint = FLAGS_arc_fingerprint}, |
| ArcvmNativeCollector::CrashInfo{ |
| .time = static_cast<time_t>(FLAGS_arc_native_time), |
| .pid = FLAGS_pid, |
| .exec_name = FLAGS_exe}), |
| }}, |
| }); |
| |
| ArcvmKernelCollector arcvm_kernel_collector; |
| collectors.push_back({ |
| .collector = &arcvm_kernel_collector, |
| .handlers = {{ |
| // This handles kernel crashes of ARCVM. |
| .should_handle = FLAGS_arc_is_arcvm && FLAGS_arc_kernel, |
| .cb = base::BindRepeating(&ArcvmKernelCollector::HandleCrash, |
| base::Unretained(&arcvm_kernel_collector), |
| arc_util::BuildProperty{ |
| .device = FLAGS_arc_device, |
| .board = FLAGS_arc_board, |
| .cpu_abi = FLAGS_arc_cpu_abi, |
| .fingerprint = FLAGS_arc_fingerprint, |
| }), |
| }}, |
| }); |
| |
| ArcCollector arc_collector; |
| |
| // Always initialize arc_collector so that we can use it to determine if the |
| // process is an arc process. |
| arc_collector.Initialize(FLAGS_directory_failure, false /* early */); |
| bool is_arc_process = !FLAGS_user.empty() && ArcCollector::IsArcRunning() && |
| arc_collector.IsArcProcess(user_crash_attrs.pid); |
| |
| collectors.push_back({ |
| .collector = &arc_collector, |
| .init = base::DoNothing(), |
| .handlers = |
| {{ |
| // This handles native crashes of ARC++. |
| .should_handle = !FLAGS_arc_is_arcvm && is_arc_process, |
| .cb = base::BindRepeating(&ArcCollector::HandleCrash, |
| base::Unretained(&arc_collector), |
| user_crash_attrs, nullptr), |
| }, |
| { |
| // This handles Java app crashes of ARC++ and ARCVM. |
| .should_handle = !FLAGS_arc_java_crash.empty(), |
| .cb = base::BindRepeating( |
| &ArcCollector::HandleJavaCrash, |
| base::Unretained(&arc_collector), FLAGS_arc_java_crash, |
| arc_util::BuildProperty{ |
| .device = FLAGS_arc_device, |
| .board = FLAGS_arc_board, |
| .cpu_abi = FLAGS_arc_cpu_abi, |
| .fingerprint = FLAGS_arc_fingerprint, |
| }), |
| }}, |
| }); |
| #else // USE_CHEETS |
| bool is_arc_process = false; |
| #endif // USE_CHEETS |
| |
| UserCollector user_collector; |
| collectors.push_back({ |
| .collector = &user_collector, |
| .init = base::BindRepeating(&UserCollector::Initialize, |
| base::Unretained(&user_collector), |
| my_path.value(), FLAGS_core2md_failure, |
| FLAGS_directory_failure, FLAGS_early), |
| .handlers = {{ |
| // NOTE: This is not handling a crash; it's instead |
| // initializing the entire crash reporting system. |
| // So, leave |cb| unset and call InitializeSystem |
| // manually below. |
| .should_handle = FLAGS_init, |
| }, |
| { |
| .should_handle = FLAGS_clean_shutdown, |
| // Leave cb unset: clean_shutdown requires other |
| // collectors, so it's handled later. |
| }, |
| { |
| .should_handle = !FLAGS_user.empty() && !is_arc_process, |
| .cb = base::BindRepeating( |
| &UserCollector::HandleCrash, |
| base::Unretained(&user_collector), user_crash_attrs, |
| nullptr), |
| }}, |
| }); |
| |
| EphemeralCrashCollector ephemeral_crash_collector; |
| collectors.push_back({ |
| .collector = &ephemeral_crash_collector, |
| .init = base::BindRepeating(&EphemeralCrashCollector::Initialize, |
| base::Unretained(&ephemeral_crash_collector), |
| FLAGS_preserve_across_clobber), |
| .handlers = |
| {{ |
| .should_handle = FLAGS_ephemeral_collect, |
| .cb = base::BindRepeating( |
| &EphemeralCrashCollector::Collect, |
| base::Unretained(&ephemeral_crash_collector)), |
| }, |
| { |
| .should_handle = FLAGS_boot_collect, |
| // leave cb empty because boot_collect needs multiple collectors. |
| // It's handled separately at the end of main. |
| }}, |
| }); |
| |
| MountFailureCollector mount_failure_collector( |
| MountFailureCollector::ValidateStorageDeviceType(FLAGS_mount_device)); |
| collectors.push_back({ |
| .collector = &mount_failure_collector, |
| .handlers = {{ |
| .should_handle = FLAGS_mount_failure || FLAGS_umount_failure, |
| .cb = base::BindRepeating(&MountFailureCollector::Collect, |
| base::Unretained(&mount_failure_collector), |
| FLAGS_mount_failure), |
| }}, |
| }); |
| |
| MissedCrashCollector missed_crash_collector; |
| collectors.push_back({ |
| .collector = &missed_crash_collector, |
| .handlers = {{ |
| .should_handle = FLAGS_missed_chrome_crash, |
| .cb = base::BindRepeating(&MissedCrashCollector::Collect, |
| base::Unretained(&missed_crash_collector), |
| FLAGS_pid, FLAGS_recent_miss_count, |
| FLAGS_recent_match_count, |
| FLAGS_pending_miss_count), |
| }}, |
| }); |
| |
| UncleanShutdownCollector unclean_shutdown_collector; |
| collectors.push_back({ |
| .collector = &unclean_shutdown_collector, |
| .handlers = {{ |
| .should_handle = FLAGS_boot_collect || FLAGS_clean_shutdown, |
| // leave cb empty because both of these need multiple collectors and |
| // are handled separately at the end of main. |
| }}, |
| }); |
| |
| std::vector<InvocationInfo> boot_handlers = {{ |
| .should_handle = FLAGS_boot_collect, |
| // leave cb empty because boot_collect needs multiple collectors and is |
| // handled separately at the end of main. should_handle is only true so |
| // the collector gets initialized. |
| }}; |
| |
| KernelCollector kernel_collector; |
| collectors.push_back({ |
| .collector = &kernel_collector, |
| .handlers = boot_handlers, |
| }); |
| |
| ECCollector ec_collector; |
| collectors.push_back({ |
| .collector = &ec_collector, |
| .handlers = boot_handlers, |
| }); |
| |
| BERTCollector bert_collector; |
| collectors.push_back({ |
| .collector = &bert_collector, |
| .handlers = boot_handlers, |
| }); |
| |
| UdevCollector udev_collector; |
| collectors.push_back({.collector = &udev_collector, |
| .handlers = {{ |
| .should_handle = !FLAGS_udev.empty(), |
| .cb = base::BindRepeating( |
| &UdevCollector::HandleCrash, |
| base::Unretained(&udev_collector), FLAGS_udev), |
| }}}); |
| |
| CHECK(FLAGS_chrome.empty() || FLAGS_chrome_memfd == -1) |
| << "--chrome= and --chrome_memfd= cannot be both set"; |
| if (FLAGS_chrome_memfd == -1) { |
| CHECK(FLAGS_error_key.empty()) |
| << "--error_key is only for --chrome_memfd crashes"; |
| } |
| |
| ChromeCollector chrome_collector(crash_sending_mode); |
| collectors.push_back({ |
| .collector = &chrome_collector, |
| .handlers = {{ |
| .should_handle = !FLAGS_chrome.empty(), |
| .cb = base::BindRepeating( |
| &ChromeCollector::HandleCrash, |
| base::Unretained(&chrome_collector), |
| FilePath(FLAGS_chrome), FLAGS_pid, FLAGS_uid, |
| FLAGS_exe), |
| }, |
| { |
| .should_handle = FLAGS_chrome_memfd >= 0, |
| .cb = base::BindRepeating( |
| &ChromeCollector::HandleCrashThroughMemfd, |
| base::Unretained(&chrome_collector), |
| FLAGS_chrome_memfd, FLAGS_pid, FLAGS_uid, FLAGS_exe, |
| FLAGS_error_key, FLAGS_chrome_dump_dir), |
| }}, |
| }); |
| |
| KernelWarningCollector kernel_warning_collector; |
| base::RepeatingCallback<bool(KernelWarningCollector::WarningType)> |
| kernel_warn_cb = |
| base::BindRepeating(&KernelWarningCollector::Collect, |
| base::Unretained(&kernel_warning_collector)); |
| collectors.push_back({ |
| .collector = &kernel_warning_collector, |
| .handlers = {{ |
| .should_handle = FLAGS_kernel_warning, |
| .cb = base::BindRepeating( |
| kernel_warn_cb, |
| KernelWarningCollector::WarningType::kGeneric), |
| }, |
| { |
| .should_handle = FLAGS_kernel_wifi_warning, |
| .cb = base::BindRepeating( |
| kernel_warn_cb, |
| KernelWarningCollector::WarningType::kWifi), |
| }, |
| { |
| .should_handle = FLAGS_kernel_smmu_fault, |
| .cb = base::BindRepeating( |
| kernel_warn_cb, |
| KernelWarningCollector::WarningType::kSMMUFault), |
| }, |
| { |
| .should_handle = FLAGS_kernel_suspend_warning, |
| .cb = base::BindRepeating( |
| kernel_warn_cb, |
| KernelWarningCollector::WarningType::kSuspend), |
| }, |
| { |
| .should_handle = FLAGS_kernel_iwlwifi_error, |
| .cb = base::BindRepeating( |
| kernel_warn_cb, |
| KernelWarningCollector::WarningType::kIwlwifi), |
| }}, |
| }); |
| |
| GenericFailureCollector generic_failure_collector; |
| collectors.push_back( |
| {.collector = &generic_failure_collector, |
| .handlers = { |
| { |
| .should_handle = FLAGS_suspend_failure, |
| .cb = base::BindRepeating( |
| &GenericFailureCollector::Collect, |
| base::Unretained(&generic_failure_collector), |
| GenericFailureCollector::kSuspendFailure), |
| }, |
| { |
| .should_handle = !FLAGS_arc_service_failure.empty(), |
| .cb = base::BindRepeating( |
| &GenericFailureCollector::CollectFull, |
| base::Unretained(&generic_failure_collector), |
| StringPrintf("%s-%s", |
| GenericFailureCollector::kArcServiceFailure, |
| FLAGS_arc_service_failure.c_str()), |
| GenericFailureCollector::kArcServiceFailure, |
| util::GetServiceFailureWeight()), |
| }, |
| { |
| .should_handle = !FLAGS_service_failure.empty(), |
| .cb = base::BindRepeating( |
| &GenericFailureCollector::CollectFull, |
| base::Unretained(&generic_failure_collector), |
| StringPrintf("%s-%s", |
| GenericFailureCollector::kServiceFailure, |
| FLAGS_service_failure.c_str()), |
| GenericFailureCollector::kServiceFailure, |
| util::GetServiceFailureWeight()), |
| }}}); |
| |
| SELinuxViolationCollector selinux_violation_collector; |
| collectors.push_back({.collector = &selinux_violation_collector, |
| .handlers = {{ |
| .should_handle = FLAGS_selinux_violation, |
| .cb = base::BindRepeating( |
| &SELinuxViolationCollector::Collect, |
| base::Unretained(&selinux_violation_collector)), |
| }}}); |
| |
| CrashReporterFailureCollector crash_reporter_failure_collector; |
| collectors.push_back( |
| {.collector = &crash_reporter_failure_collector, |
| .handlers = {{ |
| .should_handle = FLAGS_crash_reporter_crashed, |
| .cb = base::BindRepeating( |
| &CrashReporterFailureCollector::Collect, |
| base::Unretained(&crash_reporter_failure_collector)), |
| }}}); |
| |
| VmCollector vm_collector; |
| collectors.push_back({.collector = &vm_collector, |
| .handlers = {{ |
| .should_handle = FLAGS_vm_crash, |
| .cb = base::BindRepeating( |
| &VmCollector::Collect, |
| base::Unretained(&vm_collector), FLAGS_vm_pid), |
| }}}); |
| |
| for (const CollectorInfo& collector : collectors) { |
| bool ran_init = false; |
| for (const InvocationInfo& info : collector.handlers) { |
| if (info.should_handle) { |
| if (!ran_init) { |
| if (collector.init) { |
| collector.init.Run(); |
| } else { |
| collector.collector->Initialize(FLAGS_early); |
| } |
| ran_init = true; |
| } |
| if (info.cb) { |
| // Accumulate logs to a string to help in diagnosing failures during |
| // collection. |
| brillo::LogToString(true); |
| |
| // Default to successful exit status if there's no consent. |
| bool handled = true; |
| // For early boot crash collectors, the consent file will not be |
| // accessible. Instead, check consent during boot collection. |
| if (FLAGS_early || always_allow_feedback || |
| util::IsFeedbackAllowed(&s_metrics_lib)) { |
| handled = info.cb.Run(); |
| } else if (collector.collector == &ephemeral_crash_collector && |
| ephemeral_crash_collector.SkipConsent()) { |
| // Due to the specific circumstances in which the ephemeral |
| // collector runs, it might need to skip consent checks (e.g. if |
| // it's running just after a disk clobber, the clobber may have |
| // wiped out a user's preferences). Other collectors should not skip |
| // consent checks. |
| handled = info.cb.Run(); |
| } |
| brillo::LogToString(false); |
| return handled ? 0 : 1; |
| } |
| } |
| } |
| } |
| |
| if (FLAGS_init) { |
| // Called manually to skip the normal consent checks; we always initialize |
| // the system regardless of consent. |
| return InitializeSystem(&user_collector, FLAGS_early) ? 0 : 1; |
| } |
| |
| // These special cases (which use multiple collectors) are at the end so that |
| // it's clear that all relevant collectors have been initialized. |
| if (FLAGS_boot_collect) { |
| return BootCollect(always_allow_feedback, &kernel_collector, &ec_collector, |
| &bert_collector, &unclean_shutdown_collector, |
| &ephemeral_crash_collector); |
| } |
| |
| if (FLAGS_clean_shutdown) { |
| int ret = 0; |
| if (!unclean_shutdown_collector.Disable()) |
| ret = 1; |
| if (!user_collector.Disable()) |
| ret = 1; |
| return ret; |
| } |
| |
| LOG(ERROR) << "Nothing to do! (Bad arguments?)"; |
| return 1; |
| } |
