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gerrit.omnirom.org / android_frameworks_native / e6861abb70ac3df6ac2fefea1715b6aa20851b82 / . / cmds / dumpstate / dumpstate.cpp
blob: 3a0aa9570849f9b76027ab8f6811583d2fd1bc06 [file] [log] [blame]
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "dumpstate"
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
#include <libgen.h>
#include <limits.h>
#include <math.h>
#include <poll.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/poll.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <signal.h>
#include <stdarg.h>
#include <string.h>
#include <sys/capability.h>
#include <sys/inotify.h>
#include <sys/klog.h>
#include <time.h>
#include <unistd.h>
#include <chrono>
#include <fstream>
#include <functional>
#include <future>
#include <memory>
#include <regex>
#include <set>
#include <string>
#include <utility>
#include <vector>
#include <android-base/file.h>
#include <android-base/properties.h>
#include <android-base/scopeguard.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include <android-base/unique_fd.h>
#include <android/content/pm/IPackageManagerNative.h>
#include <android/hardware/dumpstate/1.0/IDumpstateDevice.h>
#include <android/hidl/manager/1.0/IServiceManager.h>
#include <android/os/IIncidentCompanion.h>
#include <binder/IServiceManager.h>
#include <cutils/native_handle.h>
#include <cutils/properties.h>
#include <cutils/sockets.h>
#include <debuggerd/client.h>
#include <dumpsys.h>
#include <dumputils/dump_utils.h>
#include <hardware_legacy/power.h>
#include <hidl/ServiceManagement.h>
#include <log/log.h>
#include <openssl/sha.h>
#include <private/android_filesystem_config.h>
#include <private/android_logger.h>
#include <serviceutils/PriorityDumper.h>
#include <utils/StrongPointer.h>
#include "DumpstateInternal.h"
#include "DumpstateService.h"
#include "dumpstate.h"
using ::android::hardware::dumpstate::V1_0::IDumpstateDevice;
using ::std::literals::chrono_literals::operator""ms;
using ::std::literals::chrono_literals::operator""s;
// TODO: remove once moved to namespace
using android::defaultServiceManager;
using android::Dumpsys;
using android::INVALID_OPERATION;
using android::IServiceManager;
using android::OK;
using android::sp;
using android::status_t;
using android::String16;
using android::String8;
using android::TIMED_OUT;
using android::UNKNOWN_ERROR;
using android::Vector;
using android::base::StringPrintf;
using android::os::IDumpstateListener;
using android::os::dumpstate::CommandOptions;
using android::os::dumpstate::DumpFileToFd;
using android::os::dumpstate::PropertiesHelper;
// Keep in sync with
// frameworks/base/services/core/java/com/android/server/am/ActivityManagerService.java
static const int TRACE_DUMP_TIMEOUT_MS = 10000; // 10 seconds
/* Most simple commands have 10 as timeout, so 5 is a good estimate */
static const int32_t WEIGHT_FILE = 5;
// TODO: temporary variables and functions used during C++ refactoring
static Dumpstate& ds = Dumpstate::GetInstance();
static int RunCommand(const std::string& title, const std::vector<std::string>& full_command,
const CommandOptions& options = CommandOptions::DEFAULT) {
return ds.RunCommand(title, full_command, options);
}
// Reasonable value for max stats.
static const int STATS_MAX_N_RUNS = 1000;
static const long STATS_MAX_AVERAGE = 100000;
CommandOptions Dumpstate::DEFAULT_DUMPSYS = CommandOptions::WithTimeout(30).Build();
typedef Dumpstate::ConsentCallback::ConsentResult UserConsentResult;
/* read before root is shed */
static char cmdline_buf[16384] = "(unknown)";
static const char *dump_traces_path = nullptr;
static const uint64_t USER_CONSENT_TIMEOUT_MS = 30 * 1000;
// TODO: variables and functions below should be part of dumpstate object
static std::set<std::string> mount_points;
void add_mountinfo();
#define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops"
#define ALT_PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops-0"
#define BLK_DEV_SYS_DIR "/sys/block"
#define RECOVERY_DIR "/cache/recovery"
#define RECOVERY_DATA_DIR "/data/misc/recovery"
#define UPDATE_ENGINE_LOG_DIR "/data/misc/update_engine_log"
#define LOGPERSIST_DATA_DIR "/data/misc/logd"
#define PROFILE_DATA_DIR_CUR "/data/misc/profiles/cur"
#define PROFILE_DATA_DIR_REF "/data/misc/profiles/ref"
#define XFRM_STAT_PROC_FILE "/proc/net/xfrm_stat"
#define WLUTIL "/vendor/xbin/wlutil"
#define WMTRACE_DATA_DIR "/data/misc/wmtrace"
// TODO(narayan): Since this information has to be kept in sync
// with tombstoned, we should just put it in a common header.
//
// File: system/core/debuggerd/tombstoned/tombstoned.cpp
static const std::string TOMBSTONE_DIR = "/data/tombstones/";
static const std::string TOMBSTONE_FILE_PREFIX = "tombstone_";
static const std::string ANR_DIR = "/data/anr/";
static const std::string ANR_FILE_PREFIX = "anr_";
// TODO: temporary variables and functions used during C++ refactoring
#define RETURN_IF_USER_DENIED_CONSENT() \
if (ds.IsUserConsentDenied()) { \
MYLOGE("Returning early as user denied consent to share bugreport with calling app."); \
return Dumpstate::RunStatus::USER_CONSENT_DENIED; \
}
// Runs func_ptr, but checks user consent before and after running it. Returns USER_CONSENT_DENIED
// if consent is found to be denied.
#define RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(func_ptr, ...) \
RETURN_IF_USER_DENIED_CONSENT(); \
func_ptr(__VA_ARGS__); \
RETURN_IF_USER_DENIED_CONSENT();
static const char* WAKE_LOCK_NAME = "dumpstate_wakelock";
namespace android {
namespace os {
namespace {
static int Open(std::string path, int flags, mode_t mode = 0) {
int fd = TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode));
if (fd == -1) {
MYLOGE("open(%s, %s)\n", path.c_str(), strerror(errno));
}
return fd;
}
static int OpenForRead(std::string path) {
return Open(path, O_RDONLY | O_CLOEXEC | O_NOFOLLOW);
}
bool CopyFile(int in_fd, int out_fd) {
char buf[4096];
ssize_t byte_count;
while ((byte_count = TEMP_FAILURE_RETRY(read(in_fd, buf, sizeof(buf)))) > 0) {
if (!android::base::WriteFully(out_fd, buf, byte_count)) {
return false;
}
}
return (byte_count != -1);
}
static bool CopyFileToFd(const std::string& input_file, int out_fd) {
MYLOGD("Going to copy file (%s) to %d\n", input_file.c_str(), out_fd);
// Obtain a handle to the source file.
android::base::unique_fd in_fd(OpenForRead(input_file));
if (out_fd != -1 && in_fd.get() != -1) {
if (CopyFile(in_fd.get(), out_fd)) {
return true;
}
MYLOGE("Failed to copy file: %s\n", strerror(errno));
}
return false;
}
static bool UnlinkAndLogOnError(const std::string& file) {
if (unlink(file.c_str())) {
MYLOGE("Failed to unlink file (%s): %s\n", file.c_str(), strerror(errno));
return false;
}
return true;
}
static bool IsFileEmpty(const std::string& file_path) {
std::ifstream file(file_path, std::ios::binary | std::ios::ate);
if(file.bad()) {
MYLOGE("Cannot open file: %s\n", file_path.c_str());
return true;
}
return file.tellg() <= 0;
}
int64_t GetModuleMetadataVersion() {
auto binder = defaultServiceManager()->getService(android::String16("package_native"));
if (binder == nullptr) {
MYLOGE("Failed to retrieve package_native service");
return 0L;
}
auto package_service = android::interface_cast<content::pm::IPackageManagerNative>(binder);
std::string package_name;
auto status = package_service->getModuleMetadataPackageName(&package_name);
if (!status.isOk()) {
MYLOGE("Failed to retrieve module metadata package name: %s", status.toString8().c_str());
return 0L;
}
MYLOGD("Module metadata package name: %s", package_name.c_str());
int64_t version_code;
status = package_service->getVersionCodeForPackage(android::String16(package_name.c_str()),
&version_code);
if (!status.isOk()) {
MYLOGE("Failed to retrieve module metadata version: %s", status.toString8().c_str());
return 0L;
}
return version_code;
}
} // namespace
} // namespace os
} // namespace android
static void RunDumpsys(const std::string& title, const std::vector<std::string>& dumpsysArgs,
const CommandOptions& options = Dumpstate::DEFAULT_DUMPSYS,
long dumpsysTimeoutMs = 0) {
return ds.RunDumpsys(title, dumpsysArgs, options, dumpsysTimeoutMs);
}
static int DumpFile(const std::string& title, const std::string& path) {
return ds.DumpFile(title, path);
}
// Relative directory (inside the zip) for all files copied as-is into the bugreport.
static const std::string ZIP_ROOT_DIR = "FS";
static const std::string kProtoPath = "proto/";
static const std::string kProtoExt = ".proto";
static const std::string kDumpstateBoardFiles[] = {
"dumpstate_board.txt",
"dumpstate_board.bin"
};
static const int NUM_OF_DUMPS = arraysize(kDumpstateBoardFiles);
static constexpr char PROPERTY_EXTRA_OPTIONS[] = "dumpstate.options";
static constexpr char PROPERTY_LAST_ID[] = "dumpstate.last_id";
static constexpr char PROPERTY_VERSION[] = "dumpstate.version";
static constexpr char PROPERTY_EXTRA_TITLE[] = "dumpstate.options.title";
static constexpr char PROPERTY_EXTRA_DESCRIPTION[] = "dumpstate.options.description";
static const CommandOptions AS_ROOT_20 = CommandOptions::WithTimeout(20).AsRoot().Build();
/*
* Returns a vector of dump fds under |dir_path| with a given |file_prefix|.
* The returned vector is sorted by the mtimes of the dumps. If |limit_by_mtime|
* is set, the vector only contains files that were written in the last 30 minutes.
* If |limit_by_count| is set, the vector only contains the ten latest files.
*/
static std::vector<DumpData> GetDumpFds(const std::string& dir_path,
const std::string& file_prefix,
bool limit_by_mtime,
bool limit_by_count = true) {
const time_t thirty_minutes_ago = ds.now_ - 60 * 30;
std::unique_ptr<DIR, decltype(&closedir)> dump_dir(opendir(dir_path.c_str()), closedir);
if (dump_dir == nullptr) {
MYLOGW("Unable to open directory %s: %s\n", dir_path.c_str(), strerror(errno));
return std::vector<DumpData>();
}
std::vector<DumpData> dump_data;
struct dirent* entry = nullptr;
while ((entry = readdir(dump_dir.get()))) {
if (entry->d_type != DT_REG) {
continue;
}
const std::string base_name(entry->d_name);
if (base_name.find(file_prefix) != 0) {
continue;
}
const std::string abs_path = dir_path + base_name;
android::base::unique_fd fd(
TEMP_FAILURE_RETRY(open(abs_path.c_str(), O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)));
if (fd == -1) {
MYLOGW("Unable to open dump file %s: %s\n", abs_path.c_str(), strerror(errno));
break;
}
struct stat st = {};
if (fstat(fd, &st) == -1) {
MYLOGW("Unable to stat dump file %s: %s\n", abs_path.c_str(), strerror(errno));
continue;
}
if (limit_by_mtime && st.st_mtime < thirty_minutes_ago) {
MYLOGI("Excluding stale dump file: %s\n", abs_path.c_str());
continue;
}
dump_data.emplace_back(DumpData{abs_path, std::move(fd), st.st_mtime});
}
// Sort in descending modification time so that we only keep the newest
// reports if |limit_by_count| is true.
std::sort(dump_data.begin(), dump_data.end(),
[](const DumpData& d1, const DumpData& d2) { return d1.mtime > d2.mtime; });
if (limit_by_count && dump_data.size() > 10) {
dump_data.erase(dump_data.begin() + 10, dump_data.end());
}
return dump_data;
}
static bool AddDumps(const std::vector<DumpData>::const_iterator start,
const std::vector<DumpData>::const_iterator end,
const char* type_name, const bool add_to_zip) {
bool dumped = false;
for (auto it = start; it != end; ++it) {
const std::string& name = it->name;
const int fd = it->fd;
dumped = true;
// Seek to the beginning of the file before dumping any data. A given
// DumpData entry might be dumped multiple times in the report.
//
// For example, the most recent ANR entry is dumped to the body of the
// main entry and it also shows up as a separate entry in the bugreport
// ZIP file.
if (lseek(fd, 0, SEEK_SET) != static_cast<off_t>(0)) {
MYLOGE("Unable to add %s to zip file, lseek failed: %s\n", name.c_str(),
strerror(errno));
}
if (ds.IsZipping() && add_to_zip) {
if (ds.AddZipEntryFromFd(ZIP_ROOT_DIR + name, fd, /* timeout = */ 0ms) != OK) {
MYLOGE("Unable to add %s to zip file, addZipEntryFromFd failed\n", name.c_str());
}
} else {
dump_file_from_fd(type_name, name.c_str(), fd);
}
}
return dumped;
}
// for_each_pid() callback to get mount info about a process.
void do_mountinfo(int pid, const char* name __attribute__((unused))) {
char path[PATH_MAX];
// Gets the the content of the /proc/PID/ns/mnt link, so only unique mount points
// are added.
snprintf(path, sizeof(path), "/proc/%d/ns/mnt", pid);
char linkname[PATH_MAX];
ssize_t r = readlink(path, linkname, PATH_MAX);
if (r == -1) {
MYLOGE("Unable to read link for %s: %s\n", path, strerror(errno));
return;
}
linkname[r] = '\0';
if (mount_points.find(linkname) == mount_points.end()) {
// First time this mount point was found: add it
snprintf(path, sizeof(path), "/proc/%d/mountinfo", pid);
if (ds.AddZipEntry(ZIP_ROOT_DIR + path, path)) {
mount_points.insert(linkname);
} else {
MYLOGE("Unable to add mountinfo %s to zip file\n", path);
}
}
}
void add_mountinfo() {
if (!ds.IsZipping()) return;
std::string title = "MOUNT INFO";
mount_points.clear();
DurationReporter duration_reporter(title, true);
for_each_pid(do_mountinfo, nullptr);
MYLOGD("%s: %d entries added to zip file\n", title.c_str(), (int)mount_points.size());
}
static void dump_dev_files(const char *title, const char *driverpath, const char *filename)
{
DIR *d;
struct dirent *de;
char path[PATH_MAX];
d = opendir(driverpath);
if (d == nullptr) {
return;
}
while ((de = readdir(d))) {
if (de->d_type != DT_LNK) {
continue;
}
snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename);
DumpFile(title, path);
}
closedir(d);
}
static bool skip_not_stat(const char *path) {
static const char stat[] = "/stat";
size_t len = strlen(path);
if (path[len - 1] == '/') { /* Directory? */
return false;
}
return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */
}
static bool skip_none(const char* path __attribute__((unused))) {
return false;
}
unsigned long worst_write_perf = 20000; /* in KB/s */
//
// stat offsets
// Name units description
// ---- ----- -----------
// read I/Os requests number of read I/Os processed
#define __STAT_READ_IOS 0
// read merges requests number of read I/Os merged with in-queue I/O
#define __STAT_READ_MERGES 1
// read sectors sectors number of sectors read
#define __STAT_READ_SECTORS 2
// read ticks milliseconds total wait time for read requests
#define __STAT_READ_TICKS 3
// write I/Os requests number of write I/Os processed
#define __STAT_WRITE_IOS 4
// write merges requests number of write I/Os merged with in-queue I/O
#define __STAT_WRITE_MERGES 5
// write sectors sectors number of sectors written
#define __STAT_WRITE_SECTORS 6
// write ticks milliseconds total wait time for write requests
#define __STAT_WRITE_TICKS 7
// in_flight requests number of I/Os currently in flight
#define __STAT_IN_FLIGHT 8
// io_ticks milliseconds total time this block device has been active
#define __STAT_IO_TICKS 9
// time_in_queue milliseconds total wait time for all requests
#define __STAT_IN_QUEUE 10
#define __STAT_NUMBER_FIELD 11
//
// read I/Os, write I/Os
// =====================
//
// These values increment when an I/O request completes.
//
// read merges, write merges
// =========================
//
// These values increment when an I/O request is merged with an
// already-queued I/O request.
//
// read sectors, write sectors
// ===========================
//
// These values count the number of sectors read from or written to this
// block device. The "sectors" in question are the standard UNIX 512-byte
// sectors, not any device- or filesystem-specific block size. The
// counters are incremented when the I/O completes.
#define SECTOR_SIZE 512
//
// read ticks, write ticks
// =======================
//
// These values count the number of milliseconds that I/O requests have
// waited on this block device. If there are multiple I/O requests waiting,
// these values will increase at a rate greater than 1000/second; for
// example, if 60 read requests wait for an average of 30 ms, the read_ticks
// field will increase by 60*30 = 1800.
//
// in_flight
// =========
//
// This value counts the number of I/O requests that have been issued to
// the device driver but have not yet completed. It does not include I/O
// requests that are in the queue but not yet issued to the device driver.
//
// io_ticks
// ========
//
// This value counts the number of milliseconds during which the device has
// had I/O requests queued.
//
// time_in_queue
// =============
//
// This value counts the number of milliseconds that I/O requests have waited
// on this block device. If there are multiple I/O requests waiting, this
// value will increase as the product of the number of milliseconds times the
// number of requests waiting (see "read ticks" above for an example).
#define S_TO_MS 1000
//
static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) {
unsigned long long fields[__STAT_NUMBER_FIELD];
bool z;
char *cp, *buffer = nullptr;
size_t i = 0;
FILE *fp = fdopen(dup(fd), "rb");
getline(&buffer, &i, fp);
fclose(fp);
if (!buffer) {
return -errno;
}
i = strlen(buffer);
while ((i > 0) && (buffer[i - 1] == '\n')) {
buffer[--i] = '\0';
}
if (!*buffer) {
free(buffer);
return 0;
}
z = true;
for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) {
fields[i] = strtoull(cp, &cp, 10);
if (fields[i] != 0) {
z = false;
}
}
if (z) { /* never accessed */
free(buffer);
return 0;
}
if (!strncmp(path, BLK_DEV_SYS_DIR, sizeof(BLK_DEV_SYS_DIR) - 1)) {
path += sizeof(BLK_DEV_SYS_DIR) - 1;
}
printf("%-30s:%9s%9s%9s%9s%9s%9s%9s%9s%9s%9s%9s\n%-30s:\t%s\n", "Block-Dev",
"R-IOs", "R-merg", "R-sect", "R-wait", "W-IOs", "W-merg", "W-sect",
"W-wait", "in-fli", "activ", "T-wait", path, buffer);
free(buffer);
if (fields[__STAT_IO_TICKS]) {
unsigned long read_perf = 0;
unsigned long read_ios = 0;
if (fields[__STAT_READ_TICKS]) {
unsigned long long divisor = fields[__STAT_READ_TICKS]
* fields[__STAT_IO_TICKS];
read_perf = ((unsigned long long)SECTOR_SIZE
* fields[__STAT_READ_SECTORS]
* fields[__STAT_IN_QUEUE] + (divisor >> 1))
/ divisor;
read_ios = ((unsigned long long)S_TO_MS * fields[__STAT_READ_IOS]
* fields[__STAT_IN_QUEUE] + (divisor >> 1))
/ divisor;
}
unsigned long write_perf = 0;
unsigned long write_ios = 0;
if (fields[__STAT_WRITE_TICKS]) {
unsigned long long divisor = fields[__STAT_WRITE_TICKS]
* fields[__STAT_IO_TICKS];
write_perf = ((unsigned long long)SECTOR_SIZE
* fields[__STAT_WRITE_SECTORS]
* fields[__STAT_IN_QUEUE] + (divisor >> 1))
/ divisor;
write_ios = ((unsigned long long)S_TO_MS * fields[__STAT_WRITE_IOS]
* fields[__STAT_IN_QUEUE] + (divisor >> 1))
/ divisor;
}
unsigned queue = (fields[__STAT_IN_QUEUE]
+ (fields[__STAT_IO_TICKS] >> 1))
/ fields[__STAT_IO_TICKS];
if (!write_perf && !write_ios) {
printf("%-30s: perf(ios) rd: %luKB/s(%lu/s) q: %u\n", path, read_perf, read_ios, queue);
} else {
printf("%-30s: perf(ios) rd: %luKB/s(%lu/s) wr: %luKB/s(%lu/s) q: %u\n", path, read_perf,
read_ios, write_perf, write_ios, queue);
}
/* bugreport timeout factor adjustment */
if ((write_perf > 1) && (write_perf < worst_write_perf)) {
worst_write_perf = write_perf;
}
}
return 0;
}
static const long MINIMUM_LOGCAT_TIMEOUT_MS = 50000;
/* timeout in ms to read a list of buffers */
static unsigned long logcat_timeout(const std::vector<std::string>& buffers) {
unsigned long timeout_ms = 0;
for (const auto& buffer : buffers) {
log_id_t id = android_name_to_log_id(buffer.c_str());
unsigned long property_size = __android_logger_get_buffer_size(id);
/* Engineering margin is ten-fold our guess */
timeout_ms += 10 * (property_size + worst_write_perf) / worst_write_perf;
}
return timeout_ms > MINIMUM_LOGCAT_TIMEOUT_MS ? timeout_ms : MINIMUM_LOGCAT_TIMEOUT_MS;
}
Dumpstate::ConsentCallback::ConsentCallback() : result_(UNAVAILABLE), start_time_(Nanotime()) {
}
android::binder::Status Dumpstate::ConsentCallback::onReportApproved() {
std::lock_guard<std::mutex> lock(lock_);
result_ = APPROVED;
MYLOGD("User approved consent to share bugreport\n");
return android::binder::Status::ok();
}
android::binder::Status Dumpstate::ConsentCallback::onReportDenied() {
std::lock_guard<std::mutex> lock(lock_);
result_ = DENIED;
MYLOGW("User denied consent to share bugreport\n");
return android::binder::Status::ok();
}
UserConsentResult Dumpstate::ConsentCallback::getResult() {
std::lock_guard<std::mutex> lock(lock_);
return result_;
}
uint64_t Dumpstate::ConsentCallback::getElapsedTimeMs() const {
return Nanotime() - start_time_;
}
void Dumpstate::PrintHeader() const {
std::string build, fingerprint, radio, bootloader, network;
char date[80];
build = android::base::GetProperty("ro.build.display.id", "(unknown)");
fingerprint = android::base::GetProperty("ro.build.fingerprint", "(unknown)");
radio = android::base::GetProperty("gsm.version.baseband", "(unknown)");
bootloader = android::base::GetProperty("ro.bootloader", "(unknown)");
network = android::base::GetProperty("gsm.operator.alpha", "(unknown)");
strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now_));
printf("========================================================\n");
printf("== dumpstate: %s\n", date);
printf("========================================================\n");
printf("\n");
printf("Build: %s\n", build.c_str());
// NOTE: fingerprint entry format is important for other tools.
printf("Build fingerprint: '%s'\n", fingerprint.c_str());
printf("Bootloader: %s\n", bootloader.c_str());
printf("Radio: %s\n", radio.c_str());
printf("Network: %s\n", network.c_str());
int64_t module_metadata_version = android::os::GetModuleMetadataVersion();
if (module_metadata_version != 0) {
printf("Module Metadata version: %" PRId64 "\n", module_metadata_version);
}
printf("Kernel: ");
DumpFileToFd(STDOUT_FILENO, "", "/proc/version");
printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
printf("Uptime: ");
RunCommandToFd(STDOUT_FILENO, "", {"uptime", "-p"},
CommandOptions::WithTimeout(1).Always().Build());
printf("Bugreport format version: %s\n", version_.c_str());
printf("Dumpstate info: id=%d pid=%d dry_run=%d args=%s extra_options=%s\n", id_, pid_,
PropertiesHelper::IsDryRun(), options_->args.c_str(), options_->extra_options.c_str());
printf("\n");
}
// List of file extensions that can cause a zip file attachment to be rejected by some email
// service providers.
static const std::set<std::string> PROBLEMATIC_FILE_EXTENSIONS = {
".ade", ".adp", ".bat", ".chm", ".cmd", ".com", ".cpl", ".exe", ".hta", ".ins", ".isp",
".jar", ".jse", ".lib", ".lnk", ".mde", ".msc", ".msp", ".mst", ".pif", ".scr", ".sct",
".shb", ".sys", ".vb", ".vbe", ".vbs", ".vxd", ".wsc", ".wsf", ".wsh"
};
status_t Dumpstate::AddZipEntryFromFd(const std::string& entry_name, int fd,
std::chrono::milliseconds timeout = 0ms) {
if (!IsZipping()) {
MYLOGD("Not adding zip entry %s from fd because it's not a zipped bugreport\n",
entry_name.c_str());
return INVALID_OPERATION;
}
std::string valid_name = entry_name;
// Rename extension if necessary.
size_t idx = entry_name.rfind('.');
if (idx != std::string::npos) {
std::string extension = entry_name.substr(idx);
std::transform(extension.begin(), extension.end(), extension.begin(), ::tolower);
if (PROBLEMATIC_FILE_EXTENSIONS.count(extension) != 0) {
valid_name = entry_name + ".renamed";
MYLOGI("Renaming entry %s to %s\n", entry_name.c_str(), valid_name.c_str());
}
}
// Logging statement below is useful to time how long each entry takes, but it's too verbose.
// MYLOGD("Adding zip entry %s\n", entry_name.c_str());
int32_t err = zip_writer_->StartEntryWithTime(valid_name.c_str(), ZipWriter::kCompress,
get_mtime(fd, ds.now_));
if (err != 0) {
MYLOGE("zip_writer_->StartEntryWithTime(%s): %s\n", valid_name.c_str(),
ZipWriter::ErrorCodeString(err));
return UNKNOWN_ERROR;
}
bool finished_entry = false;
auto finish_entry = [this, &finished_entry] {
if (!finished_entry) {
// This should only be called when we're going to return an earlier error,
// which would've been logged. This may imply the file is already corrupt
// and any further logging from FinishEntry is more likely to mislead than
// not.
this->zip_writer_->FinishEntry();
}
};
auto scope_guard = android::base::make_scope_guard(finish_entry);
auto start = std::chrono::steady_clock::now();
auto end = start + timeout;
struct pollfd pfd = {fd, POLLIN};
std::vector<uint8_t> buffer(65536);
while (1) {
if (timeout.count() > 0) {
// lambda to recalculate the timeout.
auto time_left_ms = [end]() {
auto now = std::chrono::steady_clock::now();
auto diff = std::chrono::duration_cast<std::chrono::milliseconds>(end - now);
return std::max(diff.count(), 0LL);
};
int rc = TEMP_FAILURE_RETRY(poll(&pfd, 1, time_left_ms()));
if (rc < 0) {
MYLOGE("Error in poll while adding from fd to zip entry %s:%s\n",
entry_name.c_str(), strerror(errno));
return -errno;
} else if (rc == 0) {
MYLOGE("Timed out adding from fd to zip entry %s:%s Timeout:%lldms\n",
entry_name.c_str(), strerror(errno), timeout.count());
return TIMED_OUT;
}
}
ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer.data(), buffer.size()));
if (bytes_read == 0) {
break;
} else if (bytes_read == -1) {
MYLOGE("read(%s): %s\n", entry_name.c_str(), strerror(errno));
return -errno;
}
err = zip_writer_->WriteBytes(buffer.data(), bytes_read);
if (err) {
MYLOGE("zip_writer_->WriteBytes(): %s\n", ZipWriter::ErrorCodeString(err));
return UNKNOWN_ERROR;
}
}
err = zip_writer_->FinishEntry();
finished_entry = true;
if (err != 0) {
MYLOGE("zip_writer_->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err));
return UNKNOWN_ERROR;
}
return OK;
}
bool Dumpstate::AddZipEntry(const std::string& entry_name, const std::string& entry_path) {
android::base::unique_fd fd(
TEMP_FAILURE_RETRY(open(entry_path.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC)));
if (fd == -1) {
MYLOGE("open(%s): %s\n", entry_path.c_str(), strerror(errno));
return false;
}
return (AddZipEntryFromFd(entry_name, fd.get()) == OK);
}
/* adds a file to the existing zipped bugreport */
static int _add_file_from_fd(const char* title __attribute__((unused)), const char* path, int fd) {
return (ds.AddZipEntryFromFd(ZIP_ROOT_DIR + path, fd) == OK) ? 0 : 1;
}
void Dumpstate::AddDir(const std::string& dir, bool recursive) {
if (!IsZipping()) {
MYLOGD("Not adding dir %s because it's not a zipped bugreport\n", dir.c_str());
return;
}
MYLOGD("Adding dir %s (recursive: %d)\n", dir.c_str(), recursive);
DurationReporter duration_reporter(dir, true);
dump_files("", dir.c_str(), recursive ? skip_none : is_dir, _add_file_from_fd);
}
bool Dumpstate::AddTextZipEntry(const std::string& entry_name, const std::string& content) {
if (!IsZipping()) {
MYLOGD("Not adding text zip entry %s because it's not a zipped bugreport\n",
entry_name.c_str());
return false;
}
MYLOGD("Adding zip text entry %s\n", entry_name.c_str());
int32_t err = zip_writer_->StartEntryWithTime(entry_name.c_str(), ZipWriter::kCompress, ds.now_);
if (err != 0) {
MYLOGE("zip_writer_->StartEntryWithTime(%s): %s\n", entry_name.c_str(),
ZipWriter::ErrorCodeString(err));
return false;
}
err = zip_writer_->WriteBytes(content.c_str(), content.length());
if (err != 0) {
MYLOGE("zip_writer_->WriteBytes(%s): %s\n", entry_name.c_str(),
ZipWriter::ErrorCodeString(err));
return false;
}
err = zip_writer_->FinishEntry();
if (err != 0) {
MYLOGE("zip_writer_->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err));
return false;
}
return true;
}
static void DoKmsg() {
struct stat st;
if (!stat(PSTORE_LAST_KMSG, &st)) {
/* Also TODO: Make console-ramoops CAP_SYSLOG protected. */
DumpFile("LAST KMSG", PSTORE_LAST_KMSG);
} else if (!stat(ALT_PSTORE_LAST_KMSG, &st)) {
DumpFile("LAST KMSG", ALT_PSTORE_LAST_KMSG);
} else {
/* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */
DumpFile("LAST KMSG", "/proc/last_kmsg");
}
}
static void DoKernelLogcat() {
unsigned long timeout_ms = logcat_timeout({"kernel"});
RunCommand(
"KERNEL LOG",
{"logcat", "-b", "kernel", "-v", "threadtime", "-v", "printable", "-v", "uid", "-d", "*:v"},
CommandOptions::WithTimeoutInMs(timeout_ms).Build());
}
static void DoLogcat() {
unsigned long timeout_ms;
// DumpFile("EVENT LOG TAGS", "/etc/event-log-tags");
// calculate timeout
timeout_ms = logcat_timeout({"main", "system", "crash"});
RunCommand("SYSTEM LOG",
{"logcat", "-v", "threadtime", "-v", "printable", "-v", "uid", "-d", "*:v"},
CommandOptions::WithTimeoutInMs(timeout_ms).Build());
timeout_ms = logcat_timeout({"events"});
RunCommand(
"EVENT LOG",
{"logcat", "-b", "events", "-v", "threadtime", "-v", "printable", "-v", "uid", "-d", "*:v"},
CommandOptions::WithTimeoutInMs(timeout_ms).Build());
timeout_ms = logcat_timeout({"stats"});
RunCommand(
"STATS LOG",
{"logcat", "-b", "stats", "-v", "threadtime", "-v", "printable", "-v", "uid", "-d", "*:v"},
CommandOptions::WithTimeoutInMs(timeout_ms).Build());
timeout_ms = logcat_timeout({"radio"});
RunCommand(
"RADIO LOG",
{"logcat", "-b", "radio", "-v", "threadtime", "-v", "printable", "-v", "uid", "-d", "*:v"},
CommandOptions::WithTimeoutInMs(timeout_ms).Build());
RunCommand("LOG STATISTICS", {"logcat", "-b", "all", "-S"});
/* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */
RunCommand("LAST LOGCAT", {"logcat", "-L", "-b", "all", "-v", "threadtime", "-v", "printable",
"-v", "uid", "-d", "*:v"});
}
static void DumpIpTablesAsRoot() {
RunCommand("IPTABLES", {"iptables", "-L", "-nvx"});
RunCommand("IP6TABLES", {"ip6tables", "-L", "-nvx"});
RunCommand("IPTABLES NAT", {"iptables", "-t", "nat", "-L", "-nvx"});
/* no ip6 nat */
RunCommand("IPTABLES MANGLE", {"iptables", "-t", "mangle", "-L", "-nvx"});
RunCommand("IP6TABLES MANGLE", {"ip6tables", "-t", "mangle", "-L", "-nvx"});
RunCommand("IPTABLES RAW", {"iptables", "-t", "raw", "-L", "-nvx"});
RunCommand("IP6TABLES RAW", {"ip6tables", "-t", "raw", "-L", "-nvx"});
}
static void AddAnrTraceDir(const bool add_to_zip, const std::string& anr_traces_dir) {
MYLOGD("AddAnrTraceDir(): dump_traces_file=%s, anr_traces_dir=%s\n", dump_traces_path,
anr_traces_dir.c_str());
// If we're here, dump_traces_path will always be a temporary file
// (created with mkostemp or similar) that contains dumps taken earlier
// on in the process.
if (dump_traces_path != nullptr) {
if (add_to_zip) {
ds.AddZipEntry(ZIP_ROOT_DIR + anr_traces_dir + "/traces-just-now.txt", dump_traces_path);
} else {
MYLOGD("Dumping current ANR traces (%s) to the main bugreport entry\n",
dump_traces_path);
ds.DumpFile("VM TRACES JUST NOW", dump_traces_path);
}
const int ret = unlink(dump_traces_path);
if (ret == -1) {
MYLOGW("Error unlinking temporary trace path %s: %s\n", dump_traces_path,
strerror(errno));
}
}
// Add a specific message for the first ANR Dump.
if (ds.anr_data_.size() > 0) {
AddDumps(ds.anr_data_.begin(), ds.anr_data_.begin() + 1,
"VM TRACES AT LAST ANR", add_to_zip);
// The "last" ANR will always be included as separate entry in the zip file. In addition,
// it will be present in the body of the main entry if |add_to_zip| == false.
//
// Historical ANRs are always included as separate entries in the bugreport zip file.
AddDumps(ds.anr_data_.begin() + ((add_to_zip) ? 1 : 0), ds.anr_data_.end(),
"HISTORICAL ANR", true /* add_to_zip */);
} else {
printf("*** NO ANRs to dump in %s\n\n", ANR_DIR.c_str());
}
}
static void AddAnrTraceFiles() {
const bool add_to_zip = ds.IsZipping() && ds.version_ == VERSION_SPLIT_ANR;
std::string anr_traces_dir = "/data/anr";
AddAnrTraceDir(add_to_zip, anr_traces_dir);
RunCommand("ANR FILES", {"ls", "-lt", ANR_DIR});
// Slow traces for slow operations.
struct stat st;
int i = 0;
while (true) {
const std::string slow_trace_path =
anr_traces_dir + android::base::StringPrintf("slow%02d.txt", i);
if (stat(slow_trace_path.c_str(), &st)) {
// No traces file at this index, done with the files.
break;
}
ds.DumpFile("VM TRACES WHEN SLOW", slow_trace_path.c_str());
i++;
}
}
static void DumpBlockStatFiles() {
DurationReporter duration_reporter("DUMP BLOCK STAT");
std::unique_ptr<DIR, std::function<int(DIR*)>> dirptr(opendir(BLK_DEV_SYS_DIR), closedir);
if (dirptr == nullptr) {
MYLOGE("Failed to open %s: %s\n", BLK_DEV_SYS_DIR, strerror(errno));
return;
}
printf("------ DUMP BLOCK STAT ------\n\n");
while (struct dirent *d = readdir(dirptr.get())) {
if ((d->d_name[0] == '.')
&& (((d->d_name[1] == '.') && (d->d_name[2] == '\0'))
|| (d->d_name[1] == '\0'))) {
continue;
}
const std::string new_path =
android::base::StringPrintf("%s/%s", BLK_DEV_SYS_DIR, d->d_name);
printf("------ BLOCK STAT (%s) ------\n", new_path.c_str());
dump_files("", new_path.c_str(), skip_not_stat, dump_stat_from_fd);
printf("\n");
}
return;
}
static void DumpPacketStats() {
DumpFile("NETWORK DEV INFO", "/proc/net/dev");
DumpFile("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all");
DumpFile("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt");
DumpFile("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl");
DumpFile("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats");
}
static void DumpIpAddrAndRules() {
/* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */
RunCommand("NETWORK INTERFACES", {"ip", "link"});
RunCommand("IPv4 ADDRESSES", {"ip", "-4", "addr", "show"});
RunCommand("IPv6 ADDRESSES", {"ip", "-6", "addr", "show"});
RunCommand("IP RULES", {"ip", "rule", "show"});
RunCommand("IP RULES v6", {"ip", "-6", "rule", "show"});
}
static Dumpstate::RunStatus RunDumpsysTextByPriority(const std::string& title, int priority,
std::chrono::milliseconds timeout,
std::chrono::milliseconds service_timeout) {
auto start = std::chrono::steady_clock::now();
sp<android::IServiceManager> sm = defaultServiceManager();
Dumpsys dumpsys(sm.get());
Vector<String16> args;
Dumpsys::setServiceArgs(args, /* asProto = */ false, priority);
Vector<String16> services = dumpsys.listServices(priority, /* supports_proto = */ false);
for (const String16& service : services) {
RETURN_IF_USER_DENIED_CONSENT();
std::string path(title);
path.append(" - ").append(String8(service).c_str());
size_t bytes_written = 0;
status_t status = dumpsys.startDumpThread(service, args);
if (status == OK) {
dumpsys.writeDumpHeader(STDOUT_FILENO, service, priority);
std::chrono::duration<double> elapsed_seconds;
status = dumpsys.writeDump(STDOUT_FILENO, service, service_timeout,
/* as_proto = */ false, elapsed_seconds, bytes_written);
dumpsys.writeDumpFooter(STDOUT_FILENO, service, elapsed_seconds);
bool dump_complete = (status == OK);
dumpsys.stopDumpThread(dump_complete);
}
auto elapsed_duration = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::steady_clock::now() - start);
if (elapsed_duration > timeout) {
MYLOGE("*** command '%s' timed out after %llums\n", title.c_str(),
elapsed_duration.count());
break;
}
}
return Dumpstate::RunStatus::OK;
}
static void RunDumpsysText(const std::string& title, int priority,
std::chrono::milliseconds timeout,
std::chrono::milliseconds service_timeout) {
DurationReporter duration_reporter(title);
dprintf(STDOUT_FILENO, "------ %s (/system/bin/dumpsys) ------\n", title.c_str());
fsync(STDOUT_FILENO);
RunDumpsysTextByPriority(title, priority, timeout, service_timeout);
}
/* Dump all services registered with Normal or Default priority. */
static Dumpstate::RunStatus RunDumpsysTextNormalPriority(const std::string& title,
std::chrono::milliseconds timeout,
std::chrono::milliseconds service_timeout) {
DurationReporter duration_reporter(title);
dprintf(STDOUT_FILENO, "------ %s (/system/bin/dumpsys) ------\n", title.c_str());
fsync(STDOUT_FILENO);
RunDumpsysTextByPriority(title, IServiceManager::DUMP_FLAG_PRIORITY_NORMAL, timeout,
service_timeout);
RETURN_IF_USER_DENIED_CONSENT();
return RunDumpsysTextByPriority(title, IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT, timeout,
service_timeout);
}
static Dumpstate::RunStatus RunDumpsysProto(const std::string& title, int priority,
std::chrono::milliseconds timeout,
std::chrono::milliseconds service_timeout) {
if (!ds.IsZipping()) {
MYLOGD("Not dumping %s because it's not a zipped bugreport\n", title.c_str());
return Dumpstate::RunStatus::OK;
}
sp<android::IServiceManager> sm = defaultServiceManager();
Dumpsys dumpsys(sm.get());
Vector<String16> args;
Dumpsys::setServiceArgs(args, /* asProto = */ true, priority);
DurationReporter duration_reporter(title);
auto start = std::chrono::steady_clock::now();
Vector<String16> services = dumpsys.listServices(priority, /* supports_proto = */ true);
for (const String16& service : services) {
RETURN_IF_USER_DENIED_CONSENT();
std::string path(kProtoPath);
path.append(String8(service).c_str());
if (priority == IServiceManager::DUMP_FLAG_PRIORITY_CRITICAL) {
path.append("_CRITICAL");
} else if (priority == IServiceManager::DUMP_FLAG_PRIORITY_HIGH) {
path.append("_HIGH");
}
path.append(kProtoExt);
status_t status = dumpsys.startDumpThread(service, args);
if (status == OK) {
status = ds.AddZipEntryFromFd(path, dumpsys.getDumpFd(), service_timeout);
bool dumpTerminated = (status == OK);
dumpsys.stopDumpThread(dumpTerminated);
}
ZipWriter::FileEntry file_entry;
ds.zip_writer_->GetLastEntry(&file_entry);
auto elapsed_duration = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::steady_clock::now() - start);
if (elapsed_duration > timeout) {
MYLOGE("*** command '%s' timed out after %llums\n", title.c_str(),
elapsed_duration.count());
break;
}
}
return Dumpstate::RunStatus::OK;
}
// Runs dumpsys on services that must dump first and will take less than 100ms to dump.
static Dumpstate::RunStatus RunDumpsysCritical() {
RunDumpsysText("DUMPSYS CRITICAL", IServiceManager::DUMP_FLAG_PRIORITY_CRITICAL,
/* timeout= */ 5s, /* service_timeout= */ 500ms);
RETURN_IF_USER_DENIED_CONSENT();
return RunDumpsysProto("DUMPSYS CRITICAL PROTO", IServiceManager::DUMP_FLAG_PRIORITY_CRITICAL,
/* timeout= */ 5s, /* service_timeout= */ 500ms);
}
// Runs dumpsys on services that must dump first but can take up to 250ms to dump.
static Dumpstate::RunStatus RunDumpsysHigh() {
// TODO meminfo takes ~10s, connectivity takes ~5sec to dump. They are both
// high priority. Reduce timeout once they are able to dump in a shorter time or
// moved to a parallel task.
RunDumpsysText("DUMPSYS HIGH", IServiceManager::DUMP_FLAG_PRIORITY_HIGH,
/* timeout= */ 90s, /* service_timeout= */ 30s);
RETURN_IF_USER_DENIED_CONSENT();
return RunDumpsysProto("DUMPSYS HIGH PROTO", IServiceManager::DUMP_FLAG_PRIORITY_HIGH,
/* timeout= */ 5s, /* service_timeout= */ 1s);
}
// Runs dumpsys on services that must dump but can take up to 10s to dump.
static Dumpstate::RunStatus RunDumpsysNormal() {
RunDumpsysTextNormalPriority("DUMPSYS", /* timeout= */ 90s, /* service_timeout= */ 10s);
RETURN_IF_USER_DENIED_CONSENT();
return RunDumpsysProto("DUMPSYS PROTO", IServiceManager::DUMP_FLAG_PRIORITY_NORMAL,
/* timeout= */ 90s, /* service_timeout= */ 10s);
}
static void DumpHals() {
if (!ds.IsZipping()) {
RunCommand("HARDWARE HALS", {"lshal", "-lVSietrpc", "--types=b,c,l,z", "--debug"},
CommandOptions::WithTimeout(10).AsRootIfAvailable().Build());
return;
}
DurationReporter duration_reporter("DUMP HALS");
RunCommand("HARDWARE HALS", {"lshal", "-lVSietrpc", "--types=b,c,l,z"},
CommandOptions::WithTimeout(10).AsRootIfAvailable().Build());
using android::hidl::manager::V1_0::IServiceManager;
using android::hardware::defaultServiceManager;
sp<IServiceManager> sm = defaultServiceManager();
if (sm == nullptr) {
MYLOGE("Could not retrieve hwservicemanager to dump hals.\n");
return;
}
auto ret = sm->list([&](const auto& interfaces) {
for (const std::string& interface : interfaces) {
std::string cleanName = interface;
std::replace_if(cleanName.begin(),
cleanName.end(),
[](char c) {
return !isalnum(c) &&
std::string("@-_:.").find(c) == std::string::npos;
}, '_');
const std::string path = ds.bugreport_internal_dir_ + "/lshal_debug_" + cleanName;
{
auto fd = android::base::unique_fd(
TEMP_FAILURE_RETRY(open(path.c_str(),
O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC | O_NOFOLLOW,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)));
if (fd < 0) {
MYLOGE("Could not open %s to dump additional hal information.\n", path.c_str());
continue;
}
RunCommandToFd(fd,
"",
{"lshal", "debug", "-E", interface},
CommandOptions::WithTimeout(2).AsRootIfAvailable().Build());
bool empty = 0 == lseek(fd, 0, SEEK_END);
if (!empty) {
ds.AddZipEntry("lshal-debug/" + cleanName + ".txt", path);
}
}
unlink(path.c_str());
}
});
if (!ret.isOk()) {
MYLOGE("Could not list hals from hwservicemanager.\n");
}
}
// Dumps various things. Returns early with status USER_CONSENT_DENIED if user denies consent
// via the consent they are shown. Ignores other errors that occur while running various
// commands. The consent checking is currently done around long running tasks, which happen to
// be distributed fairly evenly throughout the function.
static Dumpstate::RunStatus dumpstate() {
DurationReporter duration_reporter("DUMPSTATE");
// Dump various things. Note that anything that takes "long" (i.e. several seconds) should
// check intermittently (if it's intrerruptable like a foreach on pids) and/or should be wrapped
// in a consent check (via RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK).
dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version");
RunCommand("UPTIME", {"uptime"});
DumpBlockStatFiles();
dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd");
DumpFile("MEMORY INFO", "/proc/meminfo");
RunCommand("CPU INFO", {"top", "-b", "-n", "1", "-H", "-s", "6", "-o",
"pid,tid,user,pr,ni,%cpu,s,virt,res,pcy,cmd,name"});
RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(RunCommand, "PROCRANK", {"procrank"}, AS_ROOT_20);
DumpFile("VIRTUAL MEMORY STATS", "/proc/vmstat");
DumpFile("VMALLOC INFO", "/proc/vmallocinfo");
DumpFile("SLAB INFO", "/proc/slabinfo");
DumpFile("ZONEINFO", "/proc/zoneinfo");
DumpFile("PAGETYPEINFO", "/proc/pagetypeinfo");
DumpFile("BUDDYINFO", "/proc/buddyinfo");
DumpFile("FRAGMENTATION INFO", "/d/extfrag/unusable_index");
DumpFile("KERNEL WAKE SOURCES", "/d/wakeup_sources");
DumpFile("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
RunCommand("PROCESSES AND THREADS",
{"ps", "-A", "-T", "-Z", "-O", "pri,nice,rtprio,sched,pcy,time"});
RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(RunCommand, "LIBRANK", {"librank"},
CommandOptions::AS_ROOT);
DumpHals();
RunCommand("PRINTENV", {"printenv"});
RunCommand("NETSTAT", {"netstat", "-nW"});
struct stat s;
if (stat("/proc/modules", &s) != 0) {
MYLOGD("Skipping 'lsmod' because /proc/modules does not exist\n");
} else {
RunCommand("LSMOD", {"lsmod"});
}
if (__android_logger_property_get_bool(
"ro.logd.kernel", BOOL_DEFAULT_TRUE | BOOL_DEFAULT_FLAG_ENG | BOOL_DEFAULT_FLAG_SVELTE)) {
DoKernelLogcat();
} else {
do_dmesg();
}
RunCommand("LIST OF OPEN FILES", {"lsof"}, CommandOptions::AS_ROOT);
RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(for_each_pid, do_showmap, "SMAPS OF ALL PROCESSES");
for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS");
for_each_pid(show_showtime, "PROCESS TIMES (pid cmd user system iowait+percentage)");
/* Dump Bluetooth HCI logs */
ds.AddDir("/data/misc/bluetooth/logs", true);
if (ds.options_->do_fb && !ds.do_early_screenshot_) {
MYLOGI("taking late screenshot\n");
ds.TakeScreenshot();
}
DoLogcat();
AddAnrTraceFiles();
// NOTE: tombstones are always added as separate entries in the zip archive
// and are not interspersed with the main report.
const bool tombstones_dumped = AddDumps(ds.tombstone_data_.begin(), ds.tombstone_data_.end(),
"TOMBSTONE", true /* add_to_zip */);
if (!tombstones_dumped) {
printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR.c_str());
}
DumpPacketStats();
RunDumpsys("EBPF MAP STATS", {"netd", "trafficcontroller"});
DoKmsg();
DumpIpAddrAndRules();
dump_route_tables();
RunCommand("ARP CACHE", {"ip", "-4", "neigh", "show"});
RunCommand("IPv6 ND CACHE", {"ip", "-6", "neigh", "show"});
RunCommand("MULTICAST ADDRESSES", {"ip", "maddr"});
RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(RunDumpsysHigh);
RunCommand("SYSTEM PROPERTIES", {"getprop"});
RunCommand("STORAGED IO INFO", {"storaged", "-u", "-p"});
RunCommand("FILESYSTEMS & FREE SPACE", {"df"});
/* Binder state is expensive to look at as it uses a lot of memory. */
DumpFile("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log");
DumpFile("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log");
DumpFile("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions");
DumpFile("BINDER STATS", "/sys/kernel/debug/binder/stats");
DumpFile("BINDER STATE", "/sys/kernel/debug/binder/state");
/* Add window and surface trace files. */
if (!PropertiesHelper::IsUserBuild()) {
ds.AddDir(WMTRACE_DATA_DIR, false);
}
RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(ds.DumpstateBoard);
/* Migrate the ril_dumpstate to a device specific dumpstate? */
int rilDumpstateTimeout = android::base::GetIntProperty("ril.dumpstate.timeout", 0);
if (rilDumpstateTimeout > 0) {
// su does not exist on user builds, so try running without it.
// This way any implementations of vril-dump that do not require
// root can run on user builds.
CommandOptions::CommandOptionsBuilder options =
CommandOptions::WithTimeout(rilDumpstateTimeout);
if (!PropertiesHelper::IsUserBuild()) {
options.AsRoot();
}
RunCommand("DUMP VENDOR RIL LOGS", {"vril-dump"}, options.Build());
}
printf("========================================================\n");
printf("== Android Framework Services\n");
printf("========================================================\n");
RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(RunDumpsysNormal);
printf("========================================================\n");
printf("== Checkins\n");
printf("========================================================\n");
RunDumpsys("CHECKIN BATTERYSTATS", {"batterystats", "-c"});
RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(RunDumpsys, "CHECKIN MEMINFO", {"meminfo", "--checkin"});
RunDumpsys("CHECKIN NETSTATS", {"netstats", "--checkin"});
RunDumpsys("CHECKIN PROCSTATS", {"procstats", "-c"});
RunDumpsys("CHECKIN USAGESTATS", {"usagestats", "-c"});
RunDumpsys("CHECKIN PACKAGE", {"package", "--checkin"});
printf("========================================================\n");
printf("== Running Application Activities\n");
printf("========================================================\n");
// The following dumpsys internally collects output from running apps, so it can take a long
// time. So let's extend the timeout.
const CommandOptions DUMPSYS_COMPONENTS_OPTIONS = CommandOptions::WithTimeout(60).Build();
RunDumpsys("APP ACTIVITIES", {"activity", "-v", "all"}, DUMPSYS_COMPONENTS_OPTIONS);
printf("========================================================\n");
printf("== Running Application Services (platform)\n");
printf("========================================================\n");
RunDumpsys("APP SERVICES PLATFORM", {"activity", "service", "all-platform-non-critical"},
DUMPSYS_COMPONENTS_OPTIONS);
printf("========================================================\n");
printf("== Running Application Services (non-platform)\n");
printf("========================================================\n");
RunDumpsys("APP SERVICES NON-PLATFORM", {"activity", "service", "all-non-platform"},
DUMPSYS_COMPONENTS_OPTIONS);
printf("========================================================\n");
printf("== Running Application Providers (platform)\n");
printf("========================================================\n");
RunDumpsys("APP PROVIDERS PLATFORM", {"activity", "provider", "all-platform"},
DUMPSYS_COMPONENTS_OPTIONS);
printf("========================================================\n");
printf("== Running Application Providers (non-platform)\n");
printf("========================================================\n");
RunDumpsys("APP PROVIDERS NON-PLATFORM", {"activity", "provider", "all-non-platform"},
DUMPSYS_COMPONENTS_OPTIONS);
printf("========================================================\n");
printf("== Dropbox crashes\n");
printf("========================================================\n");
RunDumpsys("DROPBOX SYSTEM SERVER CRASHES", {"dropbox", "-p", "system_server_crash"});
RunDumpsys("DROPBOX SYSTEM APP CRASHES", {"dropbox", "-p", "system_app_crash"});
printf("========================================================\n");
printf("== Final progress (pid %d): %d/%d (estimated %d)\n", ds.pid_, ds.progress_->Get(),
ds.progress_->GetMax(), ds.progress_->GetInitialMax());
printf("========================================================\n");
printf("== dumpstate: done (id %d)\n", ds.id_);
printf("========================================================\n");
printf("========================================================\n");
printf("== Obtaining statsd metadata\n");
printf("========================================================\n");
// This differs from the usual dumpsys stats, which is the stats report data.
RunDumpsys("STATSDSTATS", {"stats", "--metadata"});
return Dumpstate::RunStatus::OK;
}
/*
* Dumps state for the default case; drops root after it's no longer necessary.
*
* Returns RunStatus::OK if everything went fine.
* Returns RunStatus::ERROR if there was an error.
* Returns RunStatus::USER_DENIED_CONSENT if user explicitly denied consent to sharing the bugreport
* with the caller.
*/
static Dumpstate::RunStatus DumpstateDefault() {
// Invoking the following dumpsys calls before DumpTraces() to try and
// keep the system stats as close to its initial state as possible.
RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(RunDumpsysCritical);
/* collect stack traces from Dalvik and native processes (needs root) */
RUN_SLOW_FUNCTION_WITH_CONSENT_CHECK(ds.DumpTraces, &dump_traces_path);
/* Run some operations that require root. */
ds.tombstone_data_ = GetDumpFds(TOMBSTONE_DIR, TOMBSTONE_FILE_PREFIX, !ds.IsZipping());
ds.anr_data_ = GetDumpFds(ANR_DIR, ANR_FILE_PREFIX, !ds.IsZipping());
ds.AddDir(RECOVERY_DIR, true);
ds.AddDir(RECOVERY_DATA_DIR, true);
ds.AddDir(UPDATE_ENGINE_LOG_DIR, true);
ds.AddDir(LOGPERSIST_DATA_DIR, false);
if (!PropertiesHelper::IsUserBuild()) {
ds.AddDir(PROFILE_DATA_DIR_CUR, true);
ds.AddDir(PROFILE_DATA_DIR_REF, true);
}
add_mountinfo();
DumpIpTablesAsRoot();
// Capture any IPSec policies in play. No keys are exposed here.
RunCommand("IP XFRM POLICY", {"ip", "xfrm", "policy"}, CommandOptions::WithTimeout(10).Build());
// Dump IPsec stats. No keys are exposed here.
DumpFile("XFRM STATS", XFRM_STAT_PROC_FILE);
// Run ss as root so we can see socket marks.
RunCommand("DETAILED SOCKET STATE", {"ss", "-eionptu"}, CommandOptions::WithTimeout(10).Build());
// Run iotop as root to show top 100 IO threads
RunCommand("IOTOP", {"iotop", "-n", "1", "-m", "100"});
// Gather shared memory buffer info if the product implements it
struct stat st;
if (!stat("/product/bin/dmabuf_dump", &st)) {
RunCommand("Dmabuf dump", {"/product/bin/dmabuf_dump"});
}
if (!DropRootUser()) {
return Dumpstate::RunStatus::ERROR;
}
RETURN_IF_USER_DENIED_CONSENT();
return dumpstate();
}
// This method collects common dumpsys for telephony and wifi
static void DumpstateRadioCommon() {
DumpIpTablesAsRoot();
if (!DropRootUser()) {
return;
}
do_dmesg();
DoLogcat();
DumpPacketStats();
DoKmsg();
DumpIpAddrAndRules();
dump_route_tables();
RunDumpsys("NETWORK DIAGNOSTICS", {"connectivity", "--diag"},
CommandOptions::WithTimeout(10).Build());
}
// This method collects dumpsys for telephony debugging only
static void DumpstateTelephonyOnly() {
DurationReporter duration_reporter("DUMPSTATE");
const CommandOptions DUMPSYS_COMPONENTS_OPTIONS = CommandOptions::WithTimeout(60).Build();
DumpstateRadioCommon();
RunCommand("SYSTEM PROPERTIES", {"getprop"});
printf("========================================================\n");
printf("== Android Framework Services\n");
printf("========================================================\n");
RunDumpsys("DUMPSYS", {"connectivity"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
RunDumpsys("DUMPSYS", {"connmetrics"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
RunDumpsys("DUMPSYS", {"netd"}, CommandOptions::WithTimeout(90).Build(), SEC_TO_MSEC(10));
RunDumpsys("DUMPSYS", {"carrier_config"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
RunDumpsys("DUMPSYS", {"wifi"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
RunDumpsys("BATTERYSTATS", {"batterystats"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
printf("========================================================\n");
printf("== Running Application Services\n");
printf("========================================================\n");
RunDumpsys("TELEPHONY SERVICES", {"activity", "service", "TelephonyDebugService"});
printf("========================================================\n");
printf("== Running Application Services (non-platform)\n");
printf("========================================================\n");
RunDumpsys("APP SERVICES NON-PLATFORM", {"activity", "service", "all-non-platform"},
DUMPSYS_COMPONENTS_OPTIONS);
printf("========================================================\n");
printf("== Checkins\n");
printf("========================================================\n");
RunDumpsys("CHECKIN BATTERYSTATS", {"batterystats", "-c"});
printf("========================================================\n");
printf("== dumpstate: done (id %d)\n", ds.id_);
printf("========================================================\n");
}
// This method collects dumpsys for wifi debugging only
static void DumpstateWifiOnly() {
DurationReporter duration_reporter("DUMPSTATE");
DumpstateRadioCommon();
printf("========================================================\n");
printf("== Android Framework Services\n");
printf("========================================================\n");
RunDumpsys("DUMPSYS", {"connectivity"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
RunDumpsys("DUMPSYS", {"wifi"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
DumpHals();
printf("========================================================\n");
printf("== dumpstate: done (id %d)\n", ds.id_);
printf("========================================================\n");
}
Dumpstate::RunStatus Dumpstate::DumpTraces(const char** path) {
DurationReporter duration_reporter("DUMP TRACES");
const std::string temp_file_pattern = "/data/anr/dumptrace_XXXXXX";
const size_t buf_size = temp_file_pattern.length() + 1;
std::unique_ptr<char[]> file_name_buf(new char[buf_size]);
memcpy(file_name_buf.get(), temp_file_pattern.c_str(), buf_size);
// Create a new, empty file to receive all trace dumps.
//
// TODO: This can be simplified once we remove support for the old style
// dumps. We can have a file descriptor passed in to dump_traces instead
// of creating a file, closing it and then reopening it again.
android::base::unique_fd fd(mkostemp(file_name_buf.get(), O_APPEND | O_CLOEXEC));
if (fd < 0) {
MYLOGE("mkostemp on pattern %s: %s\n", file_name_buf.get(), strerror(errno));
return RunStatus::OK;
}
// Nobody should have access to this temporary file except dumpstate, but we
// temporarily grant 'read' to 'others' here because this file is created
// when tombstoned is still running as root, but dumped after dropping. This
// can go away once support for old style dumping has.
const int chmod_ret = fchmod(fd, 0666);
if (chmod_ret < 0) {
MYLOGE("fchmod on %s failed: %s\n", file_name_buf.get(), strerror(errno));
return RunStatus::OK;
}
std::unique_ptr<DIR, decltype(&closedir)> proc(opendir("/proc"), closedir);
if (proc.get() == nullptr) {
MYLOGE("opendir /proc failed: %s\n", strerror(errno));
return RunStatus::OK;
}
// Number of times process dumping has timed out. If we encounter too many
// failures, we'll give up.
int timeout_failures = 0;
bool dalvik_found = false;
const std::set<int> hal_pids = get_interesting_hal_pids();
struct dirent* d;
while ((d = readdir(proc.get()))) {
RETURN_IF_USER_DENIED_CONSENT();
int pid = atoi(d->d_name);
if (pid <= 0) {
continue;
}
const std::string link_name = android::base::StringPrintf("/proc/%d/exe", pid);
std::string exe;
if (!android::base::Readlink(link_name, &exe)) {
continue;
}
bool is_java_process;
if (exe == "/system/bin/app_process32" || exe == "/system/bin/app_process64") {
// Don't bother dumping backtraces for the zygote.
if (IsZygote(pid)) {
continue;
}
dalvik_found = true;
is_java_process = true;
} else if (should_dump_native_traces(exe.c_str()) || hal_pids.find(pid) != hal_pids.end()) {
is_java_process = false;
} else {
// Probably a native process we don't care about, continue.
continue;
}
// If 3 backtrace dumps fail in a row, consider debuggerd dead.
if (timeout_failures == 3) {
dprintf(fd, "ERROR: Too many stack dump failures, exiting.\n");
break;
}
const uint64_t start = Nanotime();
const int ret = dump_backtrace_to_file_timeout(
pid, is_java_process ? kDebuggerdJavaBacktrace : kDebuggerdNativeBacktrace,
is_java_process ? 5 : 20, fd);
if (ret == -1) {
// For consistency, the header and footer to this message match those
// dumped by debuggerd in the success case.
dprintf(fd, "\n---- pid %d at [unknown] ----\n", pid);
dprintf(fd, "Dump failed, likely due to a timeout.\n");
dprintf(fd, "---- end %d ----", pid);
timeout_failures++;
continue;
}
// We've successfully dumped stack traces, reset the failure count
// and write a summary of the elapsed time to the file and continue with the
// next process.
timeout_failures = 0;
dprintf(fd, "[dump %s stack %d: %.3fs elapsed]\n", is_java_process ? "dalvik" : "native",
pid, (float)(Nanotime() - start) / NANOS_PER_SEC);
}
if (!dalvik_found) {
MYLOGE("Warning: no Dalvik processes found to dump stacks\n");
}
*path = file_name_buf.release();
return RunStatus::OK;
}
void Dumpstate::DumpstateBoard() {
DurationReporter duration_reporter("dumpstate_board()");
printf("========================================================\n");
printf("== Board\n");
printf("========================================================\n");
if (!IsZipping()) {
MYLOGD("Not dumping board info because it's not a zipped bugreport\n");
return;
}
std::vector<std::string> paths;
std::vector<android::base::ScopeGuard<std::function<void()>>> remover;
for (int i = 0; i < NUM_OF_DUMPS; i++) {
paths.emplace_back(StringPrintf("%s/%s", ds.bugreport_internal_dir_.c_str(),
kDumpstateBoardFiles[i].c_str()));
remover.emplace_back(android::base::make_scope_guard(
std::bind([](std::string path) { android::os::UnlinkAndLogOnError(path); }, paths[i])));
}
sp<IDumpstateDevice> dumpstate_device(IDumpstateDevice::getService());
if (dumpstate_device == nullptr) {
MYLOGE("No IDumpstateDevice implementation\n");
return;
}
using ScopedNativeHandle =
std::unique_ptr<native_handle_t, std::function<void(native_handle_t*)>>;
ScopedNativeHandle handle(native_handle_create(static_cast<int>(paths.size()), 0),
[](native_handle_t* handle) {
native_handle_close(handle);
native_handle_delete(handle);
});
if (handle == nullptr) {
MYLOGE("Could not create native_handle\n");
return;
}
// TODO(128270426): Check for consent in between?
for (size_t i = 0; i < paths.size(); i++) {
MYLOGI("Calling IDumpstateDevice implementation using path %s\n", paths[i].c_str());
android::base::unique_fd fd(TEMP_FAILURE_RETRY(
open(paths[i].c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC | O_NOFOLLOW,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)));
if (fd < 0) {
MYLOGE("Could not open file %s: %s\n", paths[i].c_str(), strerror(errno));
return;
}
handle.get()->data[i] = fd.release();
}
// Given that bugreport is required to diagnose failures, it's better to
// set an arbitrary amount of timeout for IDumpstateDevice than to block the
// rest of bugreport. In the timeout case, we will kill dumpstate board HAL
// and grab whatever dumped
std::packaged_task<bool()>
dumpstate_task([paths, dumpstate_device, &handle]() -> bool {
android::hardware::Return<void> status = dumpstate_device->dumpstateBoard(handle.get());
if (!status.isOk()) {
MYLOGE("dumpstateBoard failed: %s\n", status.description().c_str());
return false;
}
return true;
});
auto result = dumpstate_task.get_future();
std::thread(std::move(dumpstate_task)).detach();
constexpr size_t timeout_sec = 30;
if (result.wait_for(std::chrono::seconds(timeout_sec)) != std::future_status::ready) {
MYLOGE("dumpstateBoard timed out after %zus, killing dumpstate vendor HAL\n", timeout_sec);
if (!android::base::SetProperty("ctl.interface_restart",
android::base::StringPrintf("%s/default",
IDumpstateDevice::descriptor))) {
MYLOGE("Couldn't restart dumpstate HAL\n");
}
}
// Wait some time for init to kill dumpstate vendor HAL
constexpr size_t killing_timeout_sec = 10;
if (result.wait_for(std::chrono::seconds(killing_timeout_sec)) != std::future_status::ready) {
MYLOGE("killing dumpstateBoard timed out after %zus, continue and "
"there might be racing in content\n", killing_timeout_sec);
}
auto file_sizes = std::make_unique<ssize_t[]>(paths.size());
for (size_t i = 0; i < paths.size(); i++) {
struct stat s;
if (fstat(handle.get()->data[i], &s) == -1) {
MYLOGE("Failed to fstat %s: %s\n", kDumpstateBoardFiles[i].c_str(),
strerror(errno));
file_sizes[i] = -1;
continue;
}
file_sizes[i] = s.st_size;
}
for (size_t i = 0; i < paths.size(); i++) {
if (file_sizes[i] == -1) {
continue;
}
if (file_sizes[i] == 0) {
MYLOGE("Ignoring empty %s\n", kDumpstateBoardFiles[i].c_str());
continue;
}
AddZipEntry(kDumpstateBoardFiles[i], paths[i]);
}
printf("*** See dumpstate-board.txt entry ***\n");
}
static void ShowUsage() {
fprintf(stderr,
"usage: dumpstate [-h] [-b soundfile] [-e soundfile] [-d] [-p] "
"[-z]] [-s] [-S] [-q] [-B] [-P] [-R] [-V version]\n"
" -h: display this help message\n"
" -b: play sound file instead of vibrate, at beginning of job\n"
" -e: play sound file instead of vibrate, at end of job\n"
" -d: append date to filename\n"
" -p: capture screenshot to filename.png\n"
" -z: generate zipped file\n"
" -s: write output to control socket (for init)\n"
" -S: write file location to control socket (for init; requires -z)\n"
" -q: disable vibrate\n"
" -B: send broadcast when finished\n"
" -P: send broadcast when started and update system properties on "
"progress (requires -B)\n"
" -R: take bugreport in remote mode (requires -z, -d and -B, "
"shouldn't be used with -P)\n"
" -w: start binder service and make it wait for a call to startBugreport\n"
" -v: prints the dumpstate header and exit\n");
}
static void register_sig_handler() {
signal(SIGPIPE, SIG_IGN);
}
bool Dumpstate::FinishZipFile() {
std::string entry_name = base_name_ + "-" + name_ + ".txt";
MYLOGD("Adding main entry (%s) from %s to .zip bugreport\n", entry_name.c_str(),
tmp_path_.c_str());
// Final timestamp
char date[80];
time_t the_real_now_please_stand_up = time(nullptr);
strftime(date, sizeof(date), "%Y/%m/%d %H:%M:%S", localtime(&the_real_now_please_stand_up));
MYLOGD("dumpstate id %d finished around %s (%ld s)\n", ds.id_, date,
the_real_now_please_stand_up - ds.now_);
if (!ds.AddZipEntry(entry_name, tmp_path_)) {
MYLOGE("Failed to add text entry to .zip file\n");
return false;
}
if (!AddTextZipEntry("main_entry.txt", entry_name)) {
MYLOGE("Failed to add main_entry.txt to .zip file\n");
return false;
}
// Add log file (which contains stderr output) to zip...
fprintf(stderr, "dumpstate_log.txt entry on zip file logged up to here\n");
if (!ds.AddZipEntry("dumpstate_log.txt", ds.log_path_.c_str())) {
MYLOGE("Failed to add dumpstate log to .zip file\n");
return false;
}
// TODO: Should truncate the existing file.
// ... and re-open it for further logging.
if (!redirect_to_existing_file(stderr, const_cast<char*>(ds.log_path_.c_str()))) {
return false;
}
fprintf(stderr, "\n");
int32_t err = zip_writer_->Finish();
if (err != 0) {
MYLOGE("zip_writer_->Finish(): %s\n", ZipWriter::ErrorCodeString(err));
return false;
}
// TODO: remove once FinishZipFile() is automatically handled by Dumpstate's destructor.
ds.zip_file.reset(nullptr);
MYLOGD("Removing temporary file %s\n", tmp_path_.c_str())
android::os::UnlinkAndLogOnError(tmp_path_);
return true;
}
static std::string SHA256_file_hash(const std::string& filepath) {
android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(filepath.c_str(), O_RDONLY | O_NONBLOCK
| O_CLOEXEC | O_NOFOLLOW)));
if (fd == -1) {
MYLOGE("open(%s): %s\n", filepath.c_str(), strerror(errno));
return nullptr;
}
SHA256_CTX ctx;
SHA256_Init(&ctx);
std::vector<uint8_t> buffer(65536);
while (1) {
ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd.get(), buffer.data(), buffer.size()));
if (bytes_read == 0) {
break;
} else if (bytes_read == -1) {
MYLOGE("read(%s): %s\n", filepath.c_str(), strerror(errno));
return nullptr;
}
SHA256_Update(&ctx, buffer.data(), bytes_read);
}
uint8_t hash[SHA256_DIGEST_LENGTH];
SHA256_Final(hash, &ctx);
char hash_buffer[SHA256_DIGEST_LENGTH * 2 + 1];
for(size_t i = 0; i < SHA256_DIGEST_LENGTH; i++) {
sprintf(hash_buffer + (i * 2), "%02x", hash[i]);
}
hash_buffer[sizeof(hash_buffer) - 1] = 0;
return std::string(hash_buffer);
}
static void SendBroadcast(const std::string& action, const std::vector<std::string>& args) {
// clang-format off
std::vector<std::string> am = {"/system/bin/cmd", "activity", "broadcast", "--user", "0",
"--receiver-foreground", "--receiver-include-background", "-a", action};
// clang-format on
am.insert(am.end(), args.begin(), args.end());
RunCommand("", am,
CommandOptions::WithTimeout(20)
.Log("Sending broadcast: '%s'\n")
.Always()
.DropRoot()
.RedirectStderr()
.Build());
}
static void Vibrate(int duration_ms) {
// clang-format off
RunCommand("", {"cmd", "vibrator", "vibrate", std::to_string(duration_ms), "dumpstate"},
CommandOptions::WithTimeout(10)
.Log("Vibrate: '%s'\n")
.Always()
.Build());
// clang-format on
}
static void MaybeResolveSymlink(std::string* path) {
std::string resolved_path;
if (android::base::Readlink(*path, &resolved_path)) {
*path = resolved_path;
}
}
/*
* Prepares state like filename, screenshot path, etc in Dumpstate. Also initializes ZipWriter
* if we are writing zip files and adds the version file.
*/
static void PrepareToWriteToFile() {
MaybeResolveSymlink(&ds.bugreport_internal_dir_);
std::string build_id = android::base::GetProperty("ro.build.id", "UNKNOWN_BUILD");
std::string device_name = android::base::GetProperty("ro.product.name", "UNKNOWN_DEVICE");
ds.base_name_ = StringPrintf("bugreport-%s-%s", device_name.c_str(), build_id.c_str());
if (ds.options_->do_add_date) {
char date[80];
strftime(date, sizeof(date), "%Y-%m-%d-%H-%M-%S", localtime(&ds.now_));
ds.name_ = date;
} else {
ds.name_ = "undated";
}
if (ds.options_->telephony_only) {
ds.base_name_ += "-telephony";
} else if (ds.options_->wifi_only) {
ds.base_name_ += "-wifi";
}
if (ds.options_->do_fb) {
ds.screenshot_path_ = ds.GetPath(ds.CalledByApi() ? "-tmp.png" : ".png");
}
ds.tmp_path_ = ds.GetPath(".tmp");
ds.log_path_ = ds.GetPath("-dumpstate_log-" + std::to_string(ds.pid_) + ".txt");
std::string destination = ds.CalledByApi()
? StringPrintf("[fd:%d]", ds.options_->bugreport_fd.get())
: ds.bugreport_internal_dir_.c_str();
MYLOGD(
"Bugreport dir: %s\n"
"Base name: %s\n"
"Suffix: %s\n"
"Log path: %s\n"
"Temporary path: %s\n"
"Screenshot path: %s\n",
destination.c_str(), ds.base_name_.c_str(), ds.name_.c_str(), ds.log_path_.c_str(),
ds.tmp_path_.c_str(), ds.screenshot_path_.c_str());
if (ds.options_->do_zip_file) {
ds.path_ = ds.GetPath(ds.CalledByApi() ? "-tmp.zip" : ".zip");
MYLOGD("Creating initial .zip file (%s)\n", ds.path_.c_str());
create_parent_dirs(ds.path_.c_str());
ds.zip_file.reset(fopen(ds.path_.c_str(), "wb"));
if (ds.zip_file == nullptr) {
MYLOGE("fopen(%s, 'wb'): %s\n", ds.path_.c_str(), strerror(errno));
} else {
ds.zip_writer_.reset(new ZipWriter(ds.zip_file.get()));
}
ds.AddTextZipEntry("version.txt", ds.version_);
}
}
/*
* Finalizes writing to the file by renaming or zipping the tmp file to the final location,
* printing zipped file status, etc.
*/
static void FinalizeFile() {
/* check if user changed the suffix using system properties */
std::string name =
android::base::GetProperty(android::base::StringPrintf("dumpstate.%d.name", ds.pid_), "");
bool change_suffix = false;
if (!name.empty()) {
/* must whitelist which characters are allowed, otherwise it could cross directories */
std::regex valid_regex("^[-_a-zA-Z0-9]+$");
if (std::regex_match(name.c_str(), valid_regex)) {
change_suffix = true;
} else {
MYLOGE("invalid suffix provided by user: %s\n", name.c_str());
}
}
if (change_suffix) {
MYLOGI("changing suffix from %s to %s\n", ds.name_.c_str(), name.c_str());
ds.name_ = name;
if (!ds.screenshot_path_.empty()) {
std::string new_screenshot_path = ds.GetPath(ds.CalledByApi() ? "-tmp.png" : ".png");
if (rename(ds.screenshot_path_.c_str(), new_screenshot_path.c_str())) {
MYLOGE("rename(%s, %s): %s\n", ds.screenshot_path_.c_str(),
new_screenshot_path.c_str(), strerror(errno));
} else {
ds.screenshot_path_ = new_screenshot_path;
}
}
}
bool do_text_file = true;
if (ds.options_->do_zip_file) {
if (!ds.FinishZipFile()) {
MYLOGE("Failed to finish zip file; sending text bugreport instead\n");
do_text_file = true;
} else {
do_text_file = false;
// If the user has changed the suffix, we need to change the zip file name.
std::string new_path = ds.GetPath(ds.CalledByApi() ? "-tmp.zip" : ".zip");
if (ds.path_ != new_path) {
MYLOGD("Renaming zip file from %s to %s\n", ds.path_.c_str(), new_path.c_str());
if (rename(ds.path_.c_str(), new_path.c_str())) {
MYLOGE("rename(%s, %s): %s\n", ds.path_.c_str(), new_path.c_str(),
strerror(errno));
} else {
ds.path_ = new_path;
}
}
}
}
if (do_text_file) {
ds.path_ = ds.GetPath(".txt");
MYLOGD("Generating .txt bugreport at %s from %s\n", ds.path_.c_str(), ds.tmp_path_.c_str());
if (rename(ds.tmp_path_.c_str(), ds.path_.c_str())) {
MYLOGE("rename(%s, %s): %s\n", ds.tmp_path_.c_str(), ds.path_.c_str(), strerror(errno));
ds.path_.clear();
}
}
if (ds.options_->use_control_socket) {
if (do_text_file) {
dprintf(ds.control_socket_fd_,
"FAIL:could not create zip file, check %s "
"for more details\n",
ds.log_path_.c_str());
} else {
dprintf(ds.control_socket_fd_, "OK:%s\n", ds.path_.c_str());
}
}
}
/* Broadcasts that we are done with the bugreport */
static void SendBugreportFinishedBroadcast() {
// TODO(b/111441001): use callback instead of broadcast.
if (!ds.path_.empty()) {
MYLOGI("Final bugreport path: %s\n", ds.path_.c_str());
// clang-format off
std::vector<std::string> am_args = {
"--receiver-permission", "android.permission.DUMP",
"--ei", "android.intent.extra.ID", std::to_string(ds.id_),
"--ei", "android.intent.extra.PID", std::to_string(ds.pid_),
"--ei", "android.intent.extra.MAX", std::to_string(ds.progress_->GetMax()),
"--es", "android.intent.extra.BUGREPORT", ds.path_,
"--es", "android.intent.extra.DUMPSTATE_LOG", ds.log_path_
};
// clang-format on
if (ds.options_->do_fb && !android::os::IsFileEmpty(ds.screenshot_path_)) {
am_args.push_back("--es");
am_args.push_back("android.intent.extra.SCREENSHOT");
am_args.push_back(ds.screenshot_path_);
}
if (!ds.options_->notification_title.empty()) {
am_args.push_back("--es");
am_args.push_back("android.intent.extra.TITLE");
am_args.push_back(ds.options_->notification_title);
if (!ds.options_->notification_description.empty()) {
am_args.push_back("--es");
am_args.push_back("android.intent.extra.DESCRIPTION");
am_args.push_back(ds.options_->notification_description);
}
}
if (ds.options_->is_remote_mode) {
am_args.push_back("--es");
am_args.push_back("android.intent.extra.REMOTE_BUGREPORT_HASH");
am_args.push_back(SHA256_file_hash(ds.path_));
SendBroadcast("com.android.internal.intent.action.REMOTE_BUGREPORT_FINISHED", am_args);
} else {
SendBroadcast("com.android.internal.intent.action.BUGREPORT_FINISHED", am_args);
}
} else {
MYLOGE("Skipping finished broadcast because bugreport could not be generated\n");
}
}
static inline const char* ModeToString(Dumpstate::BugreportMode mode) {
switch (mode) {
case Dumpstate::BugreportMode::BUGREPORT_FULL:
return "BUGREPORT_FULL";
case Dumpstate::BugreportMode::BUGREPORT_INTERACTIVE:
return "BUGREPORT_INTERACTIVE";
case Dumpstate::BugreportMode::BUGREPORT_REMOTE:
return "BUGREPORT_REMOTE";
case Dumpstate::BugreportMode::BUGREPORT_WEAR:
return "BUGREPORT_WEAR";
case Dumpstate::BugreportMode::BUGREPORT_TELEPHONY:
return "BUGREPORT_TELEPHONY";
case Dumpstate::BugreportMode::BUGREPORT_WIFI:
return "BUGREPORT_WIFI";
case Dumpstate::BugreportMode::BUGREPORT_DEFAULT:
return "BUGREPORT_DEFAULT";
}
}
static void SetOptionsFromMode(Dumpstate::BugreportMode mode, Dumpstate::DumpOptions* options) {
options->extra_options = ModeToString(mode);
switch (mode) {
case Dumpstate::BugreportMode::BUGREPORT_FULL:
options->do_broadcast = true;
options->do_fb = true;
break;
case Dumpstate::BugreportMode::BUGREPORT_INTERACTIVE:
// Currently, the dumpstate binder is only used by Shell to update progress.
options->do_start_service = true;
options->do_progress_updates = true;
options->do_fb = false;
options->do_broadcast = true;
break;
case Dumpstate::BugreportMode::BUGREPORT_REMOTE:
options->do_vibrate = false;
options->is_remote_mode = true;
options->do_fb = false;
options->do_broadcast = true;
break;
case Dumpstate::BugreportMode::BUGREPORT_WEAR:
options->do_start_service = true;
options->do_progress_updates = true;
options->do_zip_file = true;
options->do_fb = true;
options->do_broadcast = true;
break;
case Dumpstate::BugreportMode::BUGREPORT_TELEPHONY:
options->telephony_only = true;
options->do_fb = false;
options->do_broadcast = true;
break;
case Dumpstate::BugreportMode::BUGREPORT_WIFI:
options->wifi_only = true;
options->do_zip_file = true;
options->do_fb = false;
options->do_broadcast = true;
break;
case Dumpstate::BugreportMode::BUGREPORT_DEFAULT:
break;
}
}
static Dumpstate::BugreportMode getBugreportModeFromProperty() {
// If the system property is not set, it's assumed to be a default bugreport.
Dumpstate::BugreportMode mode = Dumpstate::BugreportMode::BUGREPORT_DEFAULT;
std::string extra_options = android::base::GetProperty(PROPERTY_EXTRA_OPTIONS, "");
if (!extra_options.empty()) {
// Framework uses a system property to override some command-line args.
// Currently, it contains the type of the requested bugreport.
if (extra_options == "bugreportplus") {
mode = Dumpstate::BugreportMode::BUGREPORT_INTERACTIVE;
} else if (extra_options == "bugreportfull") {
mode = Dumpstate::BugreportMode::BUGREPORT_FULL;
} else if (extra_options == "bugreportremote") {
mode = Dumpstate::BugreportMode::BUGREPORT_REMOTE;
} else if (extra_options == "bugreportwear") {
mode = Dumpstate::BugreportMode::BUGREPORT_WEAR;
} else if (extra_options == "bugreporttelephony") {
mode = Dumpstate::BugreportMode::BUGREPORT_TELEPHONY;
} else if (extra_options == "bugreportwifi") {
mode = Dumpstate::BugreportMode::BUGREPORT_WIFI;
} else {
MYLOGE("Unknown extra option: %s\n", extra_options.c_str());
}
// Reset the property
android::base::SetProperty(PROPERTY_EXTRA_OPTIONS, "");
}
return mode;
}
// TODO: Move away from system properties when we have options passed via binder calls.
/* Sets runtime options from the system properties and then clears those properties. */
static void SetOptionsFromProperties(Dumpstate::DumpOptions* options) {
Dumpstate::BugreportMode mode = getBugreportModeFromProperty();
SetOptionsFromMode(mode, options);
options->notification_title = android::base::GetProperty(PROPERTY_EXTRA_TITLE, "");
if (!options->notification_title.empty()) {
// Reset the property
android::base::SetProperty(PROPERTY_EXTRA_TITLE, "");
options->notification_description =
android::base::GetProperty(PROPERTY_EXTRA_DESCRIPTION, "");
if (!options->notification_description.empty()) {
// Reset the property
android::base::SetProperty(PROPERTY_EXTRA_DESCRIPTION, "");
}
MYLOGD("notification (title: %s, description: %s)\n", options->notification_title.c_str(),
options->notification_description.c_str());
}
}
static void LogDumpOptions(const Dumpstate::DumpOptions& options) {
MYLOGI("do_zip_file: %d\n", options.do_zip_file);
MYLOGI("do_add_date: %d\n", options.do_add_date);
MYLOGI("do_vibrate: %d\n", options.do_vibrate);
MYLOGI("use_socket: %d\n", options.use_socket);
MYLOGI("use_control_socket: %d\n", options.use_control_socket);
MYLOGI("do_fb: %d\n", options.do_fb);
MYLOGI("do_broadcast: %d\n", options.do_broadcast);
MYLOGI("is_remote_mode: %d\n", options.is_remote_mode);
MYLOGI("show_header_only: %d\n", options.show_header_only);
MYLOGI("do_start_service: %d\n", options.do_start_service);
MYLOGI("telephony_only: %d\n", options.telephony_only);
MYLOGI("wifi_only: %d\n", options.wifi_only);
MYLOGI("do_progress_updates: %d\n", options.do_progress_updates);
MYLOGI("fd: %d\n", options.bugreport_fd.get());
MYLOGI("extra_options: %s\n", options.extra_options.c_str());
MYLOGI("args: %s\n", options.args.c_str());
MYLOGI("notification_title: %s\n", options.notification_title.c_str());
MYLOGI("notification_description: %s\n", options.notification_description.c_str());
}
void Dumpstate::DumpOptions::Initialize(BugreportMode bugreport_mode,
const android::base::unique_fd& bugreport_fd_in,
const android::base::unique_fd& screenshot_fd_in) {
// In the new API world, date is always added; output is always a zip file.
// TODO(111441001): remove these options once they are obsolete.
do_add_date = true;
do_zip_file = true;
// Duplicate the fds because the passed in fds don't outlive the binder transaction.
bugreport_fd.reset(dup(bugreport_fd_in.get()));
screenshot_fd.reset(dup(screenshot_fd_in.get()));
extra_options = ModeToString(bugreport_mode);
SetOptionsFromMode(bugreport_mode, this);
}
Dumpstate::RunStatus Dumpstate::DumpOptions::Initialize(int argc, char* argv[]) {
RunStatus status = RunStatus::OK;
int c;
while ((c = getopt(argc, argv, "dho:svqzpPBRSV:w")) != -1) {
switch (c) {
// clang-format off
case 'd': do_add_date = true; break;
case 'z': do_zip_file = true; break;
// o=use_outfile not supported anymore.
// TODO(b/111441001): Remove when all callers have migrated.
case 'o': break;
case 's': use_socket = true; break;
case 'S': use_control_socket = true; break;
case 'v': show_header_only = true; break;
case 'q': do_vibrate = false; break;
case 'p': do_fb = true; break;
case 'P': do_progress_updates = true; break;
case 'R': is_remote_mode = true; break;
case 'B': do_broadcast = true; break;
case 'V': break; // compatibility no-op
case 'w':
// This was already processed
break;
case 'h':
status = RunStatus::HELP;
break;
default:
fprintf(stderr, "Invalid option: %c\n", c);
status = RunStatus::INVALID_INPUT;
break;
// clang-format on
}
}
for (int i = 0; i < argc; i++) {
args += argv[i];
if (i < argc - 1) {
args += " ";
}
}
// Reset next index used by getopt so this can be called multiple times, for eg, in tests.
optind = 1;
SetOptionsFromProperties(this);
return status;
}
bool Dumpstate::DumpOptions::ValidateOptions() const {
if (bugreport_fd.get() != -1 && !do_zip_file) {
return false;
}
if ((do_zip_file || do_add_date || do_progress_updates || do_broadcast) && !OutputToFile()) {
return false;
}
if (use_control_socket && !do_zip_file) {
return false;
}
if (do_progress_updates && !do_broadcast) {
return false;
}
if (is_remote_mode && (do_progress_updates || !do_broadcast || !do_zip_file || !do_add_date)) {
return false;
}
return true;
}
void Dumpstate::SetOptions(std::unique_ptr<DumpOptions> options) {
options_ = std::move(options);
}
Dumpstate::RunStatus Dumpstate::Run(int32_t calling_uid, const std::string& calling_package) {
Dumpstate::RunStatus status = RunInternal(calling_uid, calling_package);
if (listener_ != nullptr) {
switch (status) {
case Dumpstate::RunStatus::OK:
listener_->onFinished();
break;
case Dumpstate::RunStatus::HELP:
break;
case Dumpstate::RunStatus::INVALID_INPUT:
listener_->onError(IDumpstateListener::BUGREPORT_ERROR_INVALID_INPUT);
break;
case Dumpstate::RunStatus::ERROR:
listener_->onError(IDumpstateListener::BUGREPORT_ERROR_RUNTIME_ERROR);
break;
case Dumpstate::RunStatus::USER_CONSENT_DENIED:
listener_->onError(IDumpstateListener::BUGREPORT_ERROR_USER_DENIED_CONSENT);
break;
case Dumpstate::RunStatus::USER_CONSENT_TIMED_OUT:
listener_->onError(IDumpstateListener::BUGREPORT_ERROR_USER_CONSENT_TIMED_OUT);
break;
}
}
return status;
}
/*
* Dumps relevant information to a bugreport based on the given options.
*
* The bugreport can be dumped to a file or streamed to a socket.
*
* How dumping to file works:
* stdout is redirected to a temporary file. This will later become the main bugreport entry.
* stderr is redirected a log file.
*
* The temporary bugreport is then populated via printfs, dumping contents of files and
* output of commands to stdout.
*
* If zipping, the temporary bugreport file is added to the zip archive. Else it's renamed to final
* text file.
*
* If zipping, a bunch of other files and dumps also get added to the zip archive. The log file also
* gets added to the archive.
*
* Bugreports are first generated in a local directory and later copied to the caller's fd if
* supplied.
*/
Dumpstate::RunStatus Dumpstate::RunInternal(int32_t calling_uid,
const std::string& calling_package) {
LogDumpOptions(*options_);
if (!options_->ValidateOptions()) {
MYLOGE("Invalid options specified\n");
return RunStatus::INVALID_INPUT;
}
/* set as high priority, and protect from OOM killer */
setpriority(PRIO_PROCESS, 0, -20);
FILE* oom_adj = fopen("/proc/self/oom_score_adj", "we");
if (oom_adj) {
fputs("-1000", oom_adj);
fclose(oom_adj);
} else {
/* fallback to kernels <= 2.6.35 */
oom_adj = fopen("/proc/self/oom_adj", "we");
if (oom_adj) {
fputs("-17", oom_adj);
fclose(oom_adj);
}
}
if (version_ == VERSION_DEFAULT) {
version_ = VERSION_CURRENT;
}
if (version_ != VERSION_CURRENT && version_ != VERSION_SPLIT_ANR) {
MYLOGE("invalid version requested ('%s'); suppported values are: ('%s', '%s', '%s')\n",
version_.c_str(), VERSION_DEFAULT.c_str(), VERSION_CURRENT.c_str(),
VERSION_SPLIT_ANR.c_str());
return RunStatus::INVALID_INPUT;
}
if (options_->show_header_only) {
PrintHeader();
return RunStatus::OK;
}
if (options_->bugreport_fd.get() != -1) {
// If the output needs to be copied over to the caller's fd, get user consent.
android::String16 package(calling_package.c_str());
CheckUserConsent(calling_uid, package);
}
// Redirect output if needed
bool is_redirecting = options_->OutputToFile();
// TODO: temporarily set progress until it's part of the Dumpstate constructor
std::string stats_path =
is_redirecting
? android::base::StringPrintf("%s/dumpstate-stats.txt", bugreport_internal_dir_.c_str())
: "";
progress_.reset(new Progress(stats_path));
/* gets the sequential id */
uint32_t last_id = android::base::GetIntProperty(PROPERTY_LAST_ID, 0);
id_ = ++last_id;
android::base::SetProperty(PROPERTY_LAST_ID, std::to_string(last_id));
MYLOGI("begin\n");
if (acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_NAME) < 0) {
MYLOGE("Failed to acquire wake lock: %s\n", strerror(errno));
} else {
// Wake lock will be released automatically on process death
MYLOGD("Wake lock acquired.\n");
}
register_sig_handler();
// TODO(b/111441001): maybe skip if already started?
if (options_->do_start_service) {
MYLOGI("Starting 'dumpstate' service\n");
android::status_t ret;
if ((ret = android::os::DumpstateService::Start()) != android::OK) {
MYLOGE("Unable to start DumpstateService: %d\n", ret);
}
}
if (PropertiesHelper::IsDryRun()) {
MYLOGI("Running on dry-run mode (to disable it, call 'setprop dumpstate.dry_run false')\n");
}
MYLOGI("dumpstate info: id=%d, args='%s', extra_options= %s)\n", id_, options_->args.c_str(),
options_->extra_options.c_str());
MYLOGI("bugreport format version: %s\n", version_.c_str());
do_early_screenshot_ = options_->do_progress_updates;
// If we are going to use a socket, do it as early as possible
// to avoid timeouts from bugreport.
if (options_->use_socket) {
if (!redirect_to_socket(stdout, "dumpstate")) {
return ERROR;
}
}
if (options_->use_control_socket) {
MYLOGD("Opening control socket\n");
control_socket_fd_ = open_socket("dumpstate");
if (control_socket_fd_ == -1) {
return ERROR;
}
options_->do_progress_updates = 1;
}
if (is_redirecting) {
PrepareToWriteToFile();
if (options_->do_progress_updates) {
if (options_->do_broadcast) {
// clang-format off
std::vector<std::string> am_args = {
"--receiver-permission", "android.permission.DUMP",
"--es", "android.intent.extra.NAME", name_,
"--ei", "android.intent.extra.ID", std::to_string(id_),
"--ei", "android.intent.extra.PID", std::to_string(pid_),
"--ei", "android.intent.extra.MAX", std::to_string(progress_->GetMax()),
};
// clang-format on
SendBroadcast("com.android.internal.intent.action.BUGREPORT_STARTED", am_args);
}
if (options_->use_control_socket) {
dprintf(control_socket_fd_, "BEGIN:%s\n", path_.c_str());
}
}
}
/* read /proc/cmdline before dropping root */
FILE *cmdline = fopen("/proc/cmdline", "re");
if (cmdline) {
fgets(cmdline_buf, sizeof(cmdline_buf), cmdline);
fclose(cmdline);
}
if (options_->do_vibrate) {
Vibrate(150);
}
if (options_->do_fb && do_early_screenshot_) {
MYLOGI("taking early screenshot\n");
TakeScreenshot();
}
if (options_->do_zip_file && zip_file != nullptr) {
if (chown(path_.c_str(), AID_SHELL, AID_SHELL)) {
MYLOGE("Unable to change ownership of zip file %s: %s\n", path_.c_str(),
strerror(errno));
}
}
int dup_stdout_fd;
int dup_stderr_fd;
if (is_redirecting) {
// Redirect stderr to log_path_ for debugging.
TEMP_FAILURE_RETRY(dup_stderr_fd = dup(fileno(stderr)));
if (!redirect_to_file(stderr, const_cast<char*>(log_path_.c_str()))) {
return ERROR;
}
if (chown(log_path_.c_str(), AID_SHELL, AID_SHELL)) {
MYLOGE("Unable to change ownership of dumpstate log file %s: %s\n", log_path_.c_str(),
strerror(errno));
}
// Redirect stdout to tmp_path_. This is the main bugreport entry and will be
// moved into zip file later, if zipping.
TEMP_FAILURE_RETRY(dup_stdout_fd = dup(fileno(stdout)));
// TODO: why not write to a file instead of stdout to overcome this problem?
/* TODO: rather than generating a text file now and zipping it later,
it would be more efficient to redirect stdout to the zip entry
directly, but the libziparchive doesn't support that option yet. */
if (!redirect_to_file(stdout, const_cast<char*>(tmp_path_.c_str()))) {
return ERROR;
}
if (chown(tmp_path_.c_str(), AID_SHELL, AID_SHELL)) {
MYLOGE("Unable to change ownership of temporary bugreport file %s: %s\n",
tmp_path_.c_str(), strerror(errno));
}
}
// Don't buffer stdout
setvbuf(stdout, nullptr, _IONBF, 0);
// NOTE: there should be no stdout output until now, otherwise it would break the header.
// In particular, DurationReport objects should be created passing 'title, NULL', so their
// duration is logged into MYLOG instead.
PrintHeader();
if (options_->telephony_only) {
DumpstateTelephonyOnly();
DumpstateBoard();
} else if (options_->wifi_only) {
DumpstateWifiOnly();
} else {
// Dump state for the default case. This also drops root.
RunStatus s = DumpstateDefault();
if (s != RunStatus::OK) {
if (s == RunStatus::USER_CONSENT_DENIED) {
HandleUserConsentDenied();
}
return s;
}
}
/* close output if needed */
if (is_redirecting) {
TEMP_FAILURE_RETRY(dup2(dup_stdout_fd, fileno(stdout)));
}
// Rename, and/or zip the (now complete) .tmp file within the internal directory.
if (options_->OutputToFile()) {
FinalizeFile();
}
// Share the final file with the caller if the user has consented.
Dumpstate::RunStatus status = Dumpstate::RunStatus::OK;
if (options_->bugreport_fd.get() != -1) {
status = CopyBugreportIfUserConsented();
if (status != Dumpstate::RunStatus::OK &&
status != Dumpstate::RunStatus::USER_CONSENT_TIMED_OUT) {
// Do an early return if there were errors. We make an exception for consent
// timing out because it's possible the user got distracted. In this case the
// bugreport is not shared but made available for manual retrieval.
MYLOGI("User denied consent. Returning\n");
return status;
}
if (options_->do_fb && options_->screenshot_fd.get() != -1) {
bool copy_succeeded = android::os::CopyFileToFd(screenshot_path_,
options_->screenshot_fd.get());
if (copy_succeeded) {
android::os::UnlinkAndLogOnError(screenshot_path_);
}
}
if (status == Dumpstate::RunStatus::USER_CONSENT_TIMED_OUT) {
MYLOGI(
"Did not receive user consent yet."
" Will not copy the bugreport artifacts to caller.\n");
const String16 incidentcompanion("incidentcompanion");
sp<android::IBinder> ics(defaultServiceManager()->getService(incidentcompanion));
if (ics != nullptr) {
MYLOGD("Canceling user consent request via incidentcompanion service\n");
android::interface_cast<android::os::IIncidentCompanion>(ics)->cancelAuthorization(
consent_callback_.get());
} else {
MYLOGD("Unable to cancel user consent; incidentcompanion service unavailable\n");
}
}
}
/* vibrate a few but shortly times to let user know it's finished */
if (options_->do_vibrate) {
for (int i = 0; i < 3; i++) {
Vibrate(75);
usleep((75 + 50) * 1000);
}
}
/* tell activity manager we're done */
if (options_->do_broadcast) {
SendBugreportFinishedBroadcast();
// Note that listener_ is notified in Run();
}
MYLOGD("Final progress: %d/%d (estimated %d)\n", progress_->Get(), progress_->GetMax(),
progress_->GetInitialMax());
progress_->Save();
MYLOGI("done (id %d)\n", id_);
if (is_redirecting) {
TEMP_FAILURE_RETRY(dup2(dup_stderr_fd, fileno(stderr)));
}
if (options_->use_control_socket && control_socket_fd_ != -1) {
MYLOGD("Closing control socket\n");
close(control_socket_fd_);
}
tombstone_data_.clear();
anr_data_.clear();
return (consent_callback_ != nullptr &&
consent_callback_->getResult() == UserConsentResult::UNAVAILABLE)
? USER_CONSENT_TIMED_OUT
: RunStatus::OK;
}
void Dumpstate::CheckUserConsent(int32_t calling_uid, const android::String16& calling_package) {
consent_callback_ = new ConsentCallback();
const String16 incidentcompanion("incidentcompanion");
sp<android::IBinder> ics(defaultServiceManager()->getService(incidentcompanion));
if (ics != nullptr) {
MYLOGD("Checking user consent via incidentcompanion service\n");
android::interface_cast<android::os::IIncidentCompanion>(ics)->authorizeReport(
calling_uid, calling_package, String16(), String16(),
0x1 /* FLAG_CONFIRMATION_DIALOG */, consent_callback_.get());
} else {
MYLOGD("Unable to check user consent; incidentcompanion service unavailable\n");
}
}
bool Dumpstate::IsUserConsentDenied() const {
return ds.consent_callback_ != nullptr &&
ds.consent_callback_->getResult() == UserConsentResult::DENIED;
}
bool Dumpstate::CalledByApi() const {
return ds.options_->bugreport_fd.get() != -1 ? true : false;
}
void Dumpstate::CleanupFiles() {
android::os::UnlinkAndLogOnError(tmp_path_);
android::os::UnlinkAndLogOnError(screenshot_path_);
android::os::UnlinkAndLogOnError(path_);
}
Dumpstate::RunStatus Dumpstate::HandleUserConsentDenied() {
MYLOGD("User denied consent; deleting files and returning\n");
CleanupFiles();
return USER_CONSENT_DENIED;
}
Dumpstate::RunStatus Dumpstate::CopyBugreportIfUserConsented() {
// If the caller has asked to copy the bugreport over to their directory, we need explicit
// user consent.
UserConsentResult consent_result = consent_callback_->getResult();
if (consent_result == UserConsentResult::UNAVAILABLE) {
// User has not responded yet.
uint64_t elapsed_ms = consent_callback_->getElapsedTimeMs();
if (elapsed_ms < USER_CONSENT_TIMEOUT_MS) {
uint delay_seconds = (USER_CONSENT_TIMEOUT_MS - elapsed_ms) / 1000;
MYLOGD("Did not receive user consent yet; going to wait for %d seconds", delay_seconds);
sleep(delay_seconds);
}
consent_result = consent_callback_->getResult();
}
if (consent_result == UserConsentResult::DENIED) {
// User has explicitly denied sharing with the app. To be safe delete the
// internal bugreport & tmp files.
return HandleUserConsentDenied();
}
if (consent_result == UserConsentResult::APPROVED) {
bool copy_succeeded = android::os::CopyFileToFd(path_, options_->bugreport_fd.get());
if (copy_succeeded) {
android::os::UnlinkAndLogOnError(path_);
}
return copy_succeeded ? Dumpstate::RunStatus::OK : Dumpstate::RunStatus::ERROR;
} else if (consent_result == UserConsentResult::UNAVAILABLE) {
// consent_result is still UNAVAILABLE. The user has likely not responded yet.
// Since we do not have user consent to share the bugreport it does not get
// copied over to the calling app but remains in the internal directory from
// where the user can manually pull it.
return Dumpstate::RunStatus::USER_CONSENT_TIMED_OUT;
}
// Unknown result; must be a programming error.
MYLOGE("Unknown user consent result:%d\n", consent_result);
return Dumpstate::RunStatus::ERROR;
}
Dumpstate::RunStatus Dumpstate::ParseCommandlineAndRun(int argc, char* argv[]) {
std::unique_ptr<Dumpstate::DumpOptions> options = std::make_unique<Dumpstate::DumpOptions>();
Dumpstate::RunStatus status = options->Initialize(argc, argv);
if (status == Dumpstate::RunStatus::OK) {
SetOptions(std::move(options));
// When directly running dumpstate binary, the output is not expected to be written
// to any external file descriptor.
assert(options_->bugreport_fd.get() == -1);
// calling_uid and calling_package are for user consent to share the bugreport with
// an app; they are irrelvant here because bugreport is only written to a local
// directory, and not shared.
status = Run(-1 /* calling_uid */, "" /* calling_package */);
}
return status;
}
/* Main entry point for dumpstate binary. */
int run_main(int argc, char* argv[]) {
Dumpstate::RunStatus status = ds.ParseCommandlineAndRun(argc, argv);
switch (status) {
case Dumpstate::RunStatus::OK:
exit(0);
case Dumpstate::RunStatus::HELP:
ShowUsage();
exit(0);
case Dumpstate::RunStatus::INVALID_INPUT:
fprintf(stderr, "Invalid combination of args\n");
ShowUsage();
exit(1);
case Dumpstate::RunStatus::ERROR:
FALLTHROUGH_INTENDED;
case Dumpstate::RunStatus::USER_CONSENT_DENIED:
FALLTHROUGH_INTENDED;
case Dumpstate::RunStatus::USER_CONSENT_TIMED_OUT:
exit(2);
}
}
// TODO(111441001): Default DumpOptions to sensible values.
Dumpstate::Dumpstate(const std::string& version)
: pid_(getpid()),
options_(new Dumpstate::DumpOptions()),
last_reported_percent_progress_(0),
version_(version),
now_(time(nullptr)) {
}
Dumpstate& Dumpstate::GetInstance() {
static Dumpstate singleton_(android::base::GetProperty("dumpstate.version", VERSION_CURRENT));
return singleton_;
}
DurationReporter::DurationReporter(const std::string& title, bool logcat_only)
: title_(title), logcat_only_(logcat_only) {
if (!title_.empty()) {
started_ = Nanotime();
}
}
DurationReporter::~DurationReporter() {
if (!title_.empty()) {
float elapsed = (float)(Nanotime() - started_) / NANOS_PER_SEC;
if (elapsed < .5f) {
return;
}
MYLOGD("Duration of '%s': %.2fs\n", title_.c_str(), elapsed);
if (logcat_only_) {
return;
}
// Use "Yoda grammar" to make it easier to grep|sort sections.
printf("------ %.3fs was the duration of '%s' ------\n", elapsed, title_.c_str());
}
}
const int32_t Progress::kDefaultMax = 5000;
Progress::Progress(const std::string& path) : Progress(Progress::kDefaultMax, 1.1, path) {
}
Progress::Progress(int32_t initial_max, int32_t progress, float growth_factor)
: Progress(initial_max, growth_factor, "") {
progress_ = progress;
}
Progress::Progress(int32_t initial_max, float growth_factor, const std::string& path)
: initial_max_(initial_max),
progress_(0),
max_(initial_max),
growth_factor_(growth_factor),
n_runs_(0),
average_max_(0),
path_(path) {
if (!path_.empty()) {
Load();
}
}
void Progress::Load() {
MYLOGD("Loading stats from %s\n", path_.c_str());
std::string content;
if (!android::base::ReadFileToString(path_, &content)) {
MYLOGI("Could not read stats from %s; using max of %d\n", path_.c_str(), max_);
return;
}
if (content.empty()) {
MYLOGE("No stats (empty file) on %s; using max of %d\n", path_.c_str(), max_);
return;
}
std::vector<std::string> lines = android::base::Split(content, "\n");
if (lines.size() < 1) {
MYLOGE("Invalid stats on file %s: not enough lines (%d). Using max of %d\n", path_.c_str(),
(int)lines.size(), max_);
return;
}
char* ptr;
n_runs_ = strtol(lines[0].c_str(), &ptr, 10);
average_max_ = strtol(ptr, nullptr, 10);
if (n_runs_ <= 0 || average_max_ <= 0 || n_runs_ > STATS_MAX_N_RUNS ||
average_max_ > STATS_MAX_AVERAGE) {
MYLOGE("Invalid stats line on file %s: %s\n", path_.c_str(), lines[0].c_str());
initial_max_ = Progress::kDefaultMax;
} else {
initial_max_ = average_max_;
}
max_ = initial_max_;
MYLOGI("Average max progress: %d in %d runs; estimated max: %d\n", average_max_, n_runs_, max_);
}
void Progress::Save() {
int32_t total = n_runs_ * average_max_ + progress_;
int32_t runs = n_runs_ + 1;
int32_t average = floor(((float)total) / runs);
MYLOGI("Saving stats (total=%d, runs=%d, average=%d) on %s\n", total, runs, average,
path_.c_str());
if (path_.empty()) {
return;
}
std::string content = android::base::StringPrintf("%d %d\n", runs, average);
if (!android::base::WriteStringToFile(content, path_)) {
MYLOGE("Could not save stats on %s\n", path_.c_str());
}
}
int32_t Progress::Get() const {
return progress_;
}
bool Progress::Inc(int32_t delta_sec) {
bool changed = false;
if (delta_sec >= 0) {
progress_ += delta_sec;
if (progress_ > max_) {
int32_t old_max = max_;
max_ = floor((float)progress_ * growth_factor_);
MYLOGD("Adjusting max progress from %d to %d\n", old_max, max_);
changed = true;
}
}
return changed;
}
int32_t Progress::GetMax() const {
return max_;
}
int32_t Progress::GetInitialMax() const {
return initial_max_;
}
void Progress::Dump(int fd, const std::string& prefix) const {
const char* pr = prefix.c_str();
dprintf(fd, "%sprogress: %d\n", pr, progress_);
dprintf(fd, "%smax: %d\n", pr, max_);
dprintf(fd, "%sinitial_max: %d\n", pr, initial_max_);
dprintf(fd, "%sgrowth_factor: %0.2f\n", pr, growth_factor_);
dprintf(fd, "%spath: %s\n", pr, path_.c_str());
dprintf(fd, "%sn_runs: %d\n", pr, n_runs_);
dprintf(fd, "%saverage_max: %d\n", pr, average_max_);
}
bool Dumpstate::IsZipping() const {
return zip_writer_ != nullptr;
}
std::string Dumpstate::GetPath(const std::string& suffix) const {
return GetPath(bugreport_internal_dir_, suffix);
}
std::string Dumpstate::GetPath(const std::string& directory, const std::string& suffix) const {
return android::base::StringPrintf("%s/%s-%s%s", directory.c_str(), base_name_.c_str(),
name_.c_str(), suffix.c_str());
}
void Dumpstate::SetProgress(std::unique_ptr<Progress> progress) {
progress_ = std::move(progress);
}
void for_each_userid(void (*func)(int), const char *header) {
std::string title = header == nullptr ? "for_each_userid" : android::base::StringPrintf(
"for_each_userid(%s)", header);
DurationReporter duration_reporter(title);
if (PropertiesHelper::IsDryRun()) return;
DIR *d;
struct dirent *de;
if (header) printf("\n------ %s ------\n", header);
func(0);
if (!(d = opendir("/data/system/users"))) {
printf("Failed to open /data/system/users (%s)\n", strerror(errno));
return;
}
while ((de = readdir(d))) {
int userid;
if (de->d_type != DT_DIR || !(userid = atoi(de->d_name))) {
continue;
}
func(userid);
}
closedir(d);
}
static void __for_each_pid(void (*helper)(int, const char *, void *), const char *header, void *arg) {
DIR *d;
struct dirent *de;
if (!(d = opendir("/proc"))) {
printf("Failed to open /proc (%s)\n", strerror(errno));
return;
}
if (header) printf("\n------ %s ------\n", header);
while ((de = readdir(d))) {
if (ds.IsUserConsentDenied()) {
MYLOGE(
"Returning early because user denied consent to share bugreport with calling app.");
closedir(d);
return;
}
int pid;
int fd;
char cmdpath[255];
char cmdline[255];
if (!(pid = atoi(de->d_name))) {
continue;
}
memset(cmdline, 0, sizeof(cmdline));
snprintf(cmdpath, sizeof(cmdpath), "/proc/%d/cmdline", pid);
if ((fd = TEMP_FAILURE_RETRY(open(cmdpath, O_RDONLY | O_CLOEXEC))) >= 0) {
TEMP_FAILURE_RETRY(read(fd, cmdline, sizeof(cmdline) - 2));
close(fd);
if (cmdline[0]) {
helper(pid, cmdline, arg);
continue;
}
}
// if no cmdline, a kernel thread has comm
snprintf(cmdpath, sizeof(cmdpath), "/proc/%d/comm", pid);
if ((fd = TEMP_FAILURE_RETRY(open(cmdpath, O_RDONLY | O_CLOEXEC))) >= 0) {
TEMP_FAILURE_RETRY(read(fd, cmdline + 1, sizeof(cmdline) - 4));
close(fd);
if (cmdline[1]) {
cmdline[0] = '[';
size_t len = strcspn(cmdline, "\f\b\r\n");
cmdline[len] = ']';
cmdline[len+1] = '\0';
}
}
if (!cmdline[0]) {
strcpy(cmdline, "N/A");
}
helper(pid, cmdline, arg);
}
closedir(d);
}
static void for_each_pid_helper(int pid, const char *cmdline, void *arg) {
for_each_pid_func *func = (for_each_pid_func*) arg;
func(pid, cmdline);
}
void for_each_pid(for_each_pid_func func, const char *header) {
std::string title = header == nullptr ? "for_each_pid"
: android::base::StringPrintf("for_each_pid(%s)", header);
DurationReporter duration_reporter(title);
if (PropertiesHelper::IsDryRun()) return;
__for_each_pid(for_each_pid_helper, header, (void *) func);
}
static void for_each_tid_helper(int pid, const char *cmdline, void *arg) {
DIR *d;
struct dirent *de;
char taskpath[255];
for_each_tid_func *func = (for_each_tid_func *) arg;
snprintf(taskpath, sizeof(taskpath), "/proc/%d/task", pid);
if (!(d = opendir(taskpath))) {
printf("Failed to open %s (%s)\n", taskpath, strerror(errno));
return;
}
func(pid, pid, cmdline);
while ((de = readdir(d))) {
if (ds.IsUserConsentDenied()) {
MYLOGE(
"Returning early because user denied consent to share bugreport with calling app.");
closedir(d);
return;
}
int tid;
int fd;
char commpath[255];
char comm[255];
if (!(tid = atoi(de->d_name))) {
continue;
}
if (tid == pid)
continue;
snprintf(commpath, sizeof(commpath), "/proc/%d/comm", tid);
memset(comm, 0, sizeof(comm));
if ((fd = TEMP_FAILURE_RETRY(open(commpath, O_RDONLY | O_CLOEXEC))) < 0) {
strcpy(comm, "N/A");
} else {
char *c;
TEMP_FAILURE_RETRY(read(fd, comm, sizeof(comm) - 2));
close(fd);
c = strrchr(comm, '\n');
if (c) {
*c = '\0';
}
}
func(pid, tid, comm);
}
closedir(d);
}
void for_each_tid(for_each_tid_func func, const char *header) {
std::string title = header == nullptr ? "for_each_tid"
: android::base::StringPrintf("for_each_tid(%s)", header);
DurationReporter duration_reporter(title);
if (PropertiesHelper::IsDryRun()) return;
__for_each_pid(for_each_tid_helper, header, (void *) func);
}
void show_wchan(int pid, int tid, const char *name) {
if (PropertiesHelper::IsDryRun()) return;
char path[255];
char buffer[255];
int fd, ret, save_errno;
char name_buffer[255];
memset(buffer, 0, sizeof(buffer));
snprintf(path, sizeof(path), "/proc/%d/wchan", tid);
if ((fd = TEMP_FAILURE_RETRY(open(path, O_RDONLY | O_CLOEXEC))) < 0) {
printf("Failed to open '%s' (%s)\n", path, strerror(errno));
return;
}
ret = TEMP_FAILURE_RETRY(read(fd, buffer, sizeof(buffer)));
save_errno = errno;
close(fd);
if (ret < 0) {
printf("Failed to read '%s' (%s)\n", path, strerror(save_errno));
return;
}
snprintf(name_buffer, sizeof(name_buffer), "%*s%s",
pid == tid ? 0 : 3, "", name);
printf("%-7d %-32s %s\n", tid, name_buffer, buffer);
return;
}
// print time in centiseconds
static void snprcent(char *buffer, size_t len, size_t spc,
unsigned long long time) {
static long hz; // cache discovered hz
if (hz <= 0) {
hz = sysconf(_SC_CLK_TCK);
if (hz <= 0) {
hz = 1000;
}
}
// convert to centiseconds
time = (time * 100 + (hz / 2)) / hz;
char str[16];
snprintf(str, sizeof(str), " %llu.%02u",
time / 100, (unsigned)(time % 100));
size_t offset = strlen(buffer);
snprintf(buffer + offset, (len > offset) ? len - offset : 0,
"%*s", (spc > offset) ? (int)(spc - offset) : 0, str);
}
// print permille as a percent
static void snprdec(char *buffer, size_t len, size_t spc, unsigned permille) {
char str[16];
snprintf(str, sizeof(str), " %u.%u%%", permille / 10, permille % 10);
size_t offset = strlen(buffer);
snprintf(buffer + offset, (len > offset) ? len - offset : 0,
"%*s", (spc > offset) ? (int)(spc - offset) : 0, str);
}
void show_showtime(int pid, const char *name) {
if (PropertiesHelper::IsDryRun()) return;
char path[255];
char buffer[1023];
int fd, ret, save_errno;
memset(buffer, 0, sizeof(buffer));
snprintf(path, sizeof(path), "/proc/%d/stat", pid);
if ((fd = TEMP_FAILURE_RETRY(open(path, O_RDONLY | O_CLOEXEC))) < 0) {
printf("Failed to open '%s' (%s)\n", path, strerror(errno));
return;
}
ret = TEMP_FAILURE_RETRY(read(fd, buffer, sizeof(buffer)));
save_errno = errno;
close(fd);
if (ret < 0) {
printf("Failed to read '%s' (%s)\n", path, strerror(save_errno));
return;
}
// field 14 is utime
// field 15 is stime
// field 42 is iotime
unsigned long long utime = 0, stime = 0, iotime = 0;
if (sscanf(buffer,
"%*u %*s %*s %*d %*d %*d %*d %*d %*d %*d %*d "
"%*d %*d %llu %llu %*d %*d %*d %*d %*d %*d "
"%*d %*d %*d %*d %*d %*d %*d %*d %*d %*d "
"%*d %*d %*d %*d %*d %*d %*d %*d %*d %llu ",
&utime, &stime, &iotime) != 3) {
return;
}
unsigned long long total = utime + stime;
if (!total) {
return;
}
unsigned permille = (iotime * 1000 + (total / 2)) / total;
if (permille > 1000) {
permille = 1000;
}
// try to beautify and stabilize columns at <80 characters
snprintf(buffer, sizeof(buffer), "%-6d%s", pid, name);
if ((name[0] != '[') || utime) {
snprcent(buffer, sizeof(buffer), 57, utime);
}
snprcent(buffer, sizeof(buffer), 65, stime);
if ((name[0] != '[') || iotime) {
snprcent(buffer, sizeof(buffer), 73, iotime);
}
if (iotime) {
snprdec(buffer, sizeof(buffer), 79, permille);
}
puts(buffer); // adds a trailing newline
return;
}
void do_dmesg() {
const char *title = "KERNEL LOG (dmesg)";
DurationReporter duration_reporter(title);
printf("------ %s ------\n", title);
if (PropertiesHelper::IsDryRun()) return;
/* Get size of kernel buffer */
int size = klogctl(KLOG_SIZE_BUFFER, nullptr, 0);
if (size <= 0) {
printf("Unexpected klogctl return value: %d\n\n", size);
return;
}
char *buf = (char *) malloc(size + 1);
if (buf == nullptr) {
printf("memory allocation failed\n\n");
return;
}
int retval = klogctl(KLOG_READ_ALL, buf, size);
if (retval < 0) {
printf("klogctl failure\n\n");
free(buf);
return;
}
buf[retval] = '\0';
printf("%s\n\n", buf);
free(buf);
return;
}
void do_showmap(int pid, const char *name) {
char title[255];
char arg[255];
snprintf(title, sizeof(title), "SHOW MAP %d (%s)", pid, name);
snprintf(arg, sizeof(arg), "%d", pid);
RunCommand(title, {"showmap", "-q", arg}, CommandOptions::AS_ROOT);
}
int Dumpstate::DumpFile(const std::string& title, const std::string& path) {
DurationReporter duration_reporter(title);
int status = DumpFileToFd(STDOUT_FILENO, title, path);
UpdateProgress(WEIGHT_FILE);
return status;
}
int read_file_as_long(const char *path, long int *output) {
int fd = TEMP_FAILURE_RETRY(open(path, O_RDONLY | O_NONBLOCK | O_CLOEXEC));
if (fd < 0) {
int err = errno;
MYLOGE("Error opening file descriptor for %s: %s\n", path, strerror(err));
return -1;
}
char buffer[50];
ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer, sizeof(buffer)));
if (bytes_read == -1) {
MYLOGE("Error reading file %s: %s\n", path, strerror(errno));
return -2;
}
if (bytes_read == 0) {
MYLOGE("File %s is empty\n", path);
return -3;
}
*output = atoi(buffer);
return 0;
}
/* calls skip to gate calling dump_from_fd recursively
* in the specified directory. dump_from_fd defaults to
* dump_file_from_fd above when set to NULL. skip defaults
* to false when set to NULL. dump_from_fd will always be
* called with title NULL.
*/
int dump_files(const std::string& title, const char* dir, bool (*skip)(const char* path),
int (*dump_from_fd)(const char* title, const char* path, int fd)) {
DurationReporter duration_reporter(title);
DIR *dirp;
struct dirent *d;
char *newpath = nullptr;
const char *slash = "/";
int retval = 0;
if (!title.empty()) {
printf("------ %s (%s) ------\n", title.c_str(), dir);
}
if (PropertiesHelper::IsDryRun()) return 0;
if (dir[strlen(dir) - 1] == '/') {
++slash;
}
dirp = opendir(dir);
if (dirp == nullptr) {
retval = -errno;
MYLOGE("%s: %s\n", dir, strerror(errno));
return retval;
}
if (!dump_from_fd) {
dump_from_fd = dump_file_from_fd;
}
for (; ((d = readdir(dirp))); free(newpath), newpath = nullptr) {
if ((d->d_name[0] == '.')
&& (((d->d_name[1] == '.') && (d->d_name[2] == '\0'))
|| (d->d_name[1] == '\0'))) {
continue;
}
asprintf(&newpath, "%s%s%s%s", dir, slash, d->d_name,
(d->d_type == DT_DIR) ? "/" : "");
if (!newpath) {
retval = -errno;
continue;
}
if (skip && (*skip)(newpath)) {
continue;
}
if (d->d_type == DT_DIR) {
int ret = dump_files("", newpath, skip, dump_from_fd);
if (ret < 0) {
retval = ret;
}
continue;
}
android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(newpath, O_RDONLY | O_NONBLOCK | O_CLOEXEC)));
if (fd.get() < 0) {
retval = -1;
printf("*** %s: %s\n", newpath, strerror(errno));
continue;
}
(*dump_from_fd)(nullptr, newpath, fd.get());
}
closedir(dirp);
if (!title.empty()) {
printf("\n");
}
return retval;
}
/* fd must have been opened with the flag O_NONBLOCK. With this flag set,
* it's possible to avoid issues where opening the file itself can get
* stuck.
*/
int dump_file_from_fd(const char *title, const char *path, int fd) {
if (PropertiesHelper::IsDryRun()) return 0;
int flags = fcntl(fd, F_GETFL);
if (flags == -1) {
printf("*** %s: failed to get flags on fd %d: %s\n", path, fd, strerror(errno));
return -1;
} else if (!(flags & O_NONBLOCK)) {
printf("*** %s: fd must have O_NONBLOCK set.\n", path);
return -1;
}
return DumpFileFromFdToFd(title, path, fd, STDOUT_FILENO, PropertiesHelper::IsDryRun());
}
int Dumpstate::RunCommand(const std::string& title, const std::vector<std::string>& full_command,
const CommandOptions& options) {
DurationReporter duration_reporter(title);
int status = RunCommandToFd(STDOUT_FILENO, title, full_command, options);
/* TODO: for now we're simplifying the progress calculation by using the
* timeout as the weight. It's a good approximation for most cases, except when calling dumpsys,
* where its weight should be much higher proportionally to its timeout.
* Ideally, it should use a options.EstimatedDuration() instead...*/
UpdateProgress(options.Timeout());
return status;
}
void Dumpstate::RunDumpsys(const std::string& title, const std::vector<std::string>& dumpsys_args,
const CommandOptions& options, long dumpsysTimeoutMs) {
long timeout_ms = dumpsysTimeoutMs > 0 ? dumpsysTimeoutMs : options.TimeoutInMs();
std::vector<std::string> dumpsys = {"/system/bin/dumpsys", "-T", std::to_string(timeout_ms)};
dumpsys.insert(dumpsys.end(), dumpsys_args.begin(), dumpsys_args.end());
RunCommand(title, dumpsys, options);
}
int open_socket(const char *service) {
int s = android_get_control_socket(service);
if (s < 0) {
MYLOGE("android_get_control_socket(%s): %s\n", service, strerror(errno));
return -1;
}
fcntl(s, F_SETFD, FD_CLOEXEC);
// Set backlog to 0 to make sure that queue size will be minimum.
// In Linux, because the minimum queue will be 1, connect() will be blocked
// if the other clients already called connect() and the connection request was not accepted.
if (listen(s, 0) < 0) {
MYLOGE("listen(control socket): %s\n", strerror(errno));
return -1;
}
struct sockaddr addr;
socklen_t alen = sizeof(addr);
int fd = accept(s, &addr, &alen);
// Close socket just after accept(), to make sure that connect() by client will get error
// when the socket is used by the other services.
// There is still a race condition possibility between accept and close, but there is no way
// to close-on-accept atomically.
// See detail; b/123306389#comment25
close(s);
if (fd < 0) {
MYLOGE("accept(control socket): %s\n", strerror(errno));
return -1;
}
return fd;
}
/* redirect output to a service control socket */
bool redirect_to_socket(FILE* redirect, const char* service) {
int fd = open_socket(service);
if (fd == -1) {
return false;
}
fflush(redirect);
// TODO: handle dup2 failure
TEMP_FAILURE_RETRY(dup2(fd, fileno(redirect)));
close(fd);
return true;
}
// TODO: should call is_valid_output_file and/or be merged into it.
void create_parent_dirs(const char *path) {
char *chp = const_cast<char *> (path);
/* skip initial slash */
if (chp[0] == '/')
chp++;
/* create leading directories, if necessary */
struct stat dir_stat;
while (chp && chp[0]) {
chp = strchr(chp, '/');
if (chp) {
*chp = 0;
if (stat(path, &dir_stat) == -1 || !S_ISDIR(dir_stat.st_mode)) {
MYLOGI("Creating directory %s\n", path);
if (mkdir(path, 0770)) { /* drwxrwx--- */
MYLOGE("Unable to create directory %s: %s\n", path, strerror(errno));
} else if (chown(path, AID_SHELL, AID_SHELL)) {
MYLOGE("Unable to change ownership of dir %s: %s\n", path, strerror(errno));
}
}
*chp++ = '/';
}
}
}
bool _redirect_to_file(FILE* redirect, char* path, int truncate_flag) {
create_parent_dirs(path);
int fd = TEMP_FAILURE_RETRY(open(path,
O_WRONLY | O_CREAT | truncate_flag | O_CLOEXEC | O_NOFOLLOW,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH));
if (fd < 0) {
MYLOGE("%s: %s\n", path, strerror(errno));
return false;
}
TEMP_FAILURE_RETRY(dup2(fd, fileno(redirect)));
close(fd);
return true;
}
bool redirect_to_file(FILE* redirect, char* path) {
return _redirect_to_file(redirect, path, O_TRUNC);
}
bool redirect_to_existing_file(FILE* redirect, char* path) {
return _redirect_to_file(redirect, path, O_APPEND);
}
void dump_route_tables() {
DurationReporter duration_reporter("DUMP ROUTE TABLES");
if (PropertiesHelper::IsDryRun()) return;
const char* const RT_TABLES_PATH = "/data/misc/net/rt_tables";
ds.DumpFile("RT_TABLES", RT_TABLES_PATH);
FILE* fp = fopen(RT_TABLES_PATH, "re");
if (!fp) {
printf("*** %s: %s\n", RT_TABLES_PATH, strerror(errno));
return;
}
char table[16];
// Each line has an integer (the table number), a space, and a string (the table name). We only
// need the table number. It's a 32-bit unsigned number, so max 10 chars. Skip the table name.
// Add a fixed max limit so this doesn't go awry.
for (int i = 0; i < 64 && fscanf(fp, " %10s %*s", table) == 1; ++i) {
RunCommand("ROUTE TABLE IPv4", {"ip", "-4", "route", "show", "table", table});
RunCommand("ROUTE TABLE IPv6", {"ip", "-6", "route", "show", "table", table});
}
fclose(fp);
}
// TODO: make this function thread safe if sections are generated in parallel.
void Dumpstate::UpdateProgress(int32_t delta_sec) {
if (progress_ == nullptr) {
MYLOGE("UpdateProgress: progress_ not set\n");
return;
}
// Always update progess so stats can be tuned...
progress_->Inc(delta_sec);
// ...but only notifiy listeners when necessary.
if (!options_->do_progress_updates) return;
int progress = progress_->Get();
int max = progress_->GetMax();
int percent = 100 * progress / max;
if (last_reported_percent_progress_ > 0 && percent <= last_reported_percent_progress_) {
return;
}
last_reported_percent_progress_ = percent;
if (control_socket_fd_ >= 0) {
dprintf(control_socket_fd_, "PROGRESS:%d/%d\n", progress, max);
fsync(control_socket_fd_);
}
if (listener_ != nullptr) {
if (percent % 5 == 0) {
// We don't want to spam logcat, so only log multiples of 5.
MYLOGD("Setting progress (%s): %d/%d (%d%%)\n", listener_name_.c_str(), progress, max,
percent);
} else {
// stderr is ignored on normal invocations, but useful when calling
// /system/bin/dumpstate directly for debuggging.
fprintf(stderr, "Setting progress (%s): %d/%d (%d%%)\n", listener_name_.c_str(),
progress, max, percent);
}
listener_->onProgress(percent);
}
}
void Dumpstate::TakeScreenshot(const std::string& path) {
const std::string& real_path = path.empty() ? screenshot_path_ : path;
int status =
RunCommand("", {"/system/bin/screencap", "-p", real_path},
CommandOptions::WithTimeout(10).Always().DropRoot().RedirectStderr().Build());
if (status == 0) {
MYLOGD("Screenshot saved on %s\n", real_path.c_str());
} else {
MYLOGE("Failed to take screenshot on %s\n", real_path.c_str());
}
}
bool is_dir(const char* pathname) {
struct stat info;
if (stat(pathname, &info) == -1) {
return false;
}
return S_ISDIR(info.st_mode);
}
time_t get_mtime(int fd, time_t default_mtime) {
struct stat info;
if (fstat(fd, &info) == -1) {
return default_mtime;
}
return info.st_mtime;
}
void dump_emmc_ecsd(const char *ext_csd_path) {
// List of interesting offsets
struct hex {
char str[2];
};
static const size_t EXT_CSD_REV = 192 * sizeof(hex);
static const size_t EXT_PRE_EOL_INFO = 267 * sizeof(hex);
static const size_t EXT_DEVICE_LIFE_TIME_EST_TYP_A = 268 * sizeof(hex);
static const size_t EXT_DEVICE_LIFE_TIME_EST_TYP_B = 269 * sizeof(hex);
std::string buffer;
if (!android::base::ReadFileToString(ext_csd_path, &buffer)) {
return;
}
printf("------ %s Extended CSD ------\n", ext_csd_path);
if (buffer.length() < (EXT_CSD_REV + sizeof(hex))) {
printf("*** %s: truncated content %zu\n\n", ext_csd_path, buffer.length());
return;
}
int ext_csd_rev = 0;
std::string sub = buffer.substr(EXT_CSD_REV, sizeof(hex));
if (sscanf(sub.c_str(), "%2x", &ext_csd_rev) != 1) {
printf("*** %s: EXT_CSD_REV parse error \"%s\"\n\n", ext_csd_path, sub.c_str());
return;
}
static const char *ver_str[] = {
"4.0", "4.1", "4.2", "4.3", "Obsolete", "4.41", "4.5", "5.0"
};
printf("rev 1.%d (MMC %s)\n", ext_csd_rev,
(ext_csd_rev < (int)(sizeof(ver_str) / sizeof(ver_str[0]))) ? ver_str[ext_csd_rev]
: "Unknown");
if (ext_csd_rev < 7) {
printf("\n");
return;
}
if (buffer.length() < (EXT_PRE_EOL_INFO + sizeof(hex))) {
printf("*** %s: truncated content %zu\n\n", ext_csd_path, buffer.length());
return;
}
int ext_pre_eol_info = 0;
sub = buffer.substr(EXT_PRE_EOL_INFO, sizeof(hex));
if (sscanf(sub.c_str(), "%2x", &ext_pre_eol_info) != 1) {
printf("*** %s: PRE_EOL_INFO parse error \"%s\"\n\n", ext_csd_path, sub.c_str());
return;
}
static const char *eol_str[] = {
"Undefined",
"Normal",
"Warning (consumed 80% of reserve)",
"Urgent (consumed 90% of reserve)"
};
printf(
"PRE_EOL_INFO %d (MMC %s)\n", ext_pre_eol_info,
eol_str[(ext_pre_eol_info < (int)(sizeof(eol_str) / sizeof(eol_str[0]))) ? ext_pre_eol_info
: 0]);
for (size_t lifetime = EXT_DEVICE_LIFE_TIME_EST_TYP_A;
lifetime <= EXT_DEVICE_LIFE_TIME_EST_TYP_B;
lifetime += sizeof(hex)) {
int ext_device_life_time_est;
static const char *est_str[] = {
"Undefined",
"0-10% of device lifetime used",
"10-20% of device lifetime used",
"20-30% of device lifetime used",
"30-40% of device lifetime used",
"40-50% of device lifetime used",
"50-60% of device lifetime used",
"60-70% of device lifetime used",
"70-80% of device lifetime used",
"80-90% of device lifetime used",
"90-100% of device lifetime used",
"Exceeded the maximum estimated device lifetime",
};
if (buffer.length() < (lifetime + sizeof(hex))) {
printf("*** %s: truncated content %zu\n", ext_csd_path, buffer.length());
break;
}
ext_device_life_time_est = 0;
sub = buffer.substr(lifetime, sizeof(hex));
if (sscanf(sub.c_str(), "%2x", &ext_device_life_time_est) != 1) {
printf("*** %s: DEVICE_LIFE_TIME_EST_TYP_%c parse error \"%s\"\n", ext_csd_path,
(unsigned)((lifetime - EXT_DEVICE_LIFE_TIME_EST_TYP_A) / sizeof(hex)) + 'A',
sub.c_str());
continue;
}
printf("DEVICE_LIFE_TIME_EST_TYP_%c %d (MMC %s)\n",
(unsigned)((lifetime - EXT_DEVICE_LIFE_TIME_EST_TYP_A) / sizeof(hex)) + 'A',
ext_device_life_time_est,
est_str[(ext_device_life_time_est < (int)(sizeof(est_str) / sizeof(est_str[0])))
? ext_device_life_time_est
: 0]);
}
printf("\n");
}