Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / frameworks / native / fd4c8c38051f9dad028e4e43e0eb39ba412b2c0a / . / cmds / dumpstate / dumpstate.cpp
blob: 45db71c1f940465e96493d5f3940ed52348e993c [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.
*/
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <libgen.h>
#include <limits.h>
#include <memory>
#include <regex>
#include <set>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <string.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <unistd.h>
#include <android-base/stringprintf.h>
#include <android-base/file.h>
#include <cutils/properties.h>
#include <hardware_legacy/power.h>
#include "private/android_filesystem_config.h"
#define LOG_TAG "dumpstate"
#include <cutils/log.h>
#include "dumpstate.h"
#include "ScopedFd.h"
#include "ziparchive/zip_writer.h"
#include "mincrypt/sha256.h"
using android::base::StringPrintf;
/* read before root is shed */
static char cmdline_buf[16384] = "(unknown)";
static const char *dump_traces_path = NULL;
// TODO: variables below should be part of dumpstate object
static unsigned long id;
static char build_type[PROPERTY_VALUE_MAX];
static time_t now;
static std::unique_ptr<ZipWriter> zip_writer;
static std::set<std::string> mount_points;
void add_mountinfo();
int control_socket_fd = -1;
/* suffix of the bugreport files - it's typically the date (when invoked with -d),
* although it could be changed by the user using a system property */
static std::string suffix;
#define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops"
#define ALT_PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops-0"
#define RAFT_DIR "/data/misc/raft"
#define RECOVERY_DIR "/cache/recovery"
#define RECOVERY_DATA_DIR "/data/misc/recovery"
#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 TOMBSTONE_DIR "/data/tombstones"
#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_"
/* Can accomodate a tombstone number up to 9999. */
#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4)
#define NUM_TOMBSTONES 10
#define WLUTIL "/vendor/xbin/wlutil"
#define WAKE_LOCK_NAME "dumpstate_wakelock"
typedef struct {
char name[TOMBSTONE_MAX_LEN];
int fd;
} tombstone_data_t;
static tombstone_data_t tombstone_data[NUM_TOMBSTONES];
const std::string ZIP_ROOT_DIR = "FS";
std::string bugreport_dir;
/*
* List of supported zip format versions.
*
* See bugreport-format.txt for more info.
*/
static std::string VERSION_DEFAULT = "1.0";
bool is_user_build() {
return 0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1);
}
/* gets the tombstone data, according to the bugreport type: if zipped gets all tombstones,
* otherwise gets just those modified in the last half an hour. */
static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) {
time_t thirty_minutes_ago = now - 60*30;
for (size_t i = 0; i < NUM_TOMBSTONES; i++) {
snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i);
int fd = TEMP_FAILURE_RETRY(open(data[i].name,
O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK));
struct stat st;
if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) &&
(zip_writer || (time_t) st.st_mtime >= thirty_minutes_ago)) {
data[i].fd = fd;
} else {
close(fd);
data[i].fd = -1;
}
}
}
// for_each_pid() callback to get mount info about a process.
void do_mountinfo(int pid, const char *name) {
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 (add_zip_entry(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 (!zip_writer) return;
const char *title = "MOUNT INFO";
mount_points.clear();
DurationReporter duration_reporter(title, NULL);
for_each_pid(do_mountinfo, NULL);
MYLOGD("%s: %d entries added to zip file\n", title, (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 == NULL) {
return;
}
while ((de = readdir(d))) {
if (de->d_type != DT_LNK) {
continue;
}
snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename);
dump_file(title, path);
}
closedir(d);
}
// return pid of a userspace process. If not found or error, return 0.
static unsigned int pid_of_process(const char* ps_name) {
DIR *proc_dir;
struct dirent *ps;
unsigned int pid;
std::string cmdline;
if (!(proc_dir = opendir("/proc"))) {
MYLOGE("Can't open /proc\n");
return 0;
}
while ((ps = readdir(proc_dir))) {
if (!(pid = atoi(ps->d_name))) {
continue;
}
android::base::ReadFileToString("/proc/"
+ std::string(ps->d_name) + "/cmdline", &cmdline);
if (cmdline.find(ps_name) == std::string::npos) {
continue;
} else {
closedir(proc_dir);
return pid;
}
}
closedir(proc_dir);
return 0;
}
// dump anrd's trace and add to the zip file.
// 1. check if anrd is running on this device.
// 2. send a SIGUSR1 to its pid which will dump anrd's trace.
// 3. wait until the trace generation completes and add to the zip file.
static bool dump_anrd_trace() {
unsigned int pid;
char buf[50], path[PATH_MAX];
struct dirent *trace;
struct stat st;
DIR *trace_dir;
int retry = 5;
long max_ctime = 0, old_mtime;
long long cur_size = 0;
const char *trace_path = "/data/misc/anrd/";
if (!zip_writer) {
MYLOGE("Not dumping anrd trace because zip_writer is not set\n");
return false;
}
// find anrd's pid if it is running.
pid = pid_of_process("/system/xbin/anrd");
if (pid > 0) {
if (stat(trace_path, &st) == 0) {
old_mtime = st.st_mtime;
} else {
MYLOGE("Failed to find: %s\n", trace_path);
return false;
}
// send SIGUSR1 to the anrd to generate a trace.
sprintf(buf, "%u", pid);
if (run_command("ANRD_DUMP", 1, "kill", "-SIGUSR1", buf, NULL)) {
MYLOGE("anrd signal timed out. Please manually collect trace\n");
return false;
}
while (retry-- > 0 && old_mtime == st.st_mtime) {
sleep(1);
stat(trace_path, &st);
}
if (retry < 0 && old_mtime == st.st_mtime) {
MYLOGE("Failed to stat %s or trace creation timeout\n", trace_path);
return false;
}
// identify the trace file by its creation time.
if (!(trace_dir = opendir(trace_path))) {
MYLOGE("Can't open trace file under %s\n", trace_path);
}
while ((trace = readdir(trace_dir))) {
if (strcmp(trace->d_name, ".") == 0
|| strcmp(trace->d_name, "..") == 0) {
continue;
}
sprintf(path, "%s%s", trace_path, trace->d_name);
if (stat(path, &st) == 0) {
if (st.st_ctime > max_ctime) {
max_ctime = st.st_ctime;
sprintf(buf, "%s", trace->d_name);
}
}
}
closedir(trace_dir);
// Wait until the dump completes by checking the size of the trace.
if (max_ctime > 0) {
sprintf(path, "%s%s", trace_path, buf);
while(true) {
sleep(1);
if (stat(path, &st) == 0) {
if (st.st_size == cur_size) {
break;
} else if (st.st_size > cur_size) {
cur_size = st.st_size;
} else {
return false;
}
} else {
MYLOGE("Cant stat() %s anymore\n", path);
return false;
}
}
// Add to the zip file.
if (!add_zip_entry("anrd_trace.txt", path)) {
MYLOGE("Unable to add anrd_trace file %s to zip file\n", path);
} else {
if (remove(path)) {
MYLOGE("Error removing anrd_trace file %s: %s", path, strerror(errno));
}
return true;
}
} else {
MYLOGE("Can't stats any trace file under %s\n", trace_path);
}
}
return false;
}
static void dump_systrace() {
if (!zip_writer) {
MYLOGD("Not dumping systrace because zip_writer is not set\n");
return;
}
std::string systrace_path = bugreport_dir + "/systrace-" + suffix + ".txt";
if (systrace_path.empty()) {
MYLOGE("Not dumping systrace because path is empty\n");
return;
}
const char* path = "/sys/kernel/debug/tracing/tracing_on";
long int is_tracing;
if (read_file_as_long(path, &is_tracing)) {
return; // error already logged
}
if (is_tracing <= 0) {
MYLOGD("Skipping systrace because '%s' content is '%ld'\n", path, is_tracing);
return;
}
MYLOGD("Running '/system/bin/atrace --async_dump -o %s', which can take several minutes",
systrace_path.c_str());
if (run_command("SYSTRACE", 120, "/system/bin/atrace", "--async_dump", "-o",
systrace_path.c_str(), NULL)) {
MYLOGE("systrace timed out, its zip entry will be incomplete\n");
// TODO: run_command tries to kill the process, but atrace doesn't die peacefully; ideally,
// we should call strace to stop itself, but there is no such option yet (just a
// --async_stop, which stops and dump
// if (run_command("SYSTRACE", 10, "/system/bin/atrace", "--kill", NULL)) {
// MYLOGE("could not stop systrace ");
// }
}
if (!add_zip_entry("systrace.txt", systrace_path)) {
MYLOGE("Unable to add systrace file %s to zip file\n", systrace_path.c_str());
} else {
if (remove(systrace_path.c_str())) {
MYLOGE("Error removing systrace file %s: %s", systrace_path.c_str(), strerror(errno));
}
}
}
static void dump_raft() {
if (is_user_build()) {
return;
}
std::string raft_log_path = bugreport_dir + "/raft_log.txt";
if (raft_log_path.empty()) {
MYLOGD("raft_log_path is empty\n");
return;
}
struct stat s;
if (stat(RAFT_DIR, &s) != 0 || !S_ISDIR(s.st_mode)) {
MYLOGD("%s does not exist or is not a directory\n", RAFT_DIR);
return;
}
if (!zip_writer) {
// Write compressed and encoded raft logs to stdout if not zip_writer.
run_command("RAFT LOGS", 600, "logcompressor", "-r", RAFT_DIR, NULL);
return;
}
run_command("RAFT LOGS", 600, "logcompressor", "-n", "-r", RAFT_DIR,
"-o", raft_log_path.c_str(), NULL);
if (!add_zip_entry("raft_log.txt", raft_log_path)) {
MYLOGE("Unable to add raft log %s to zip file\n", raft_log_path.c_str());
} else {
if (remove(raft_log_path.c_str())) {
MYLOGE("Error removing raft file %s: %s\n", raft_log_path.c_str(), strerror(errno));
}
}
}
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) {
return false;
}
static const char mmcblk0[] = "/sys/block/mmcblk0/";
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 = NULL;
size_t i = 0;
FILE *fp = fdopen(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, mmcblk0, sizeof(mmcblk0) - 1)) {
path += sizeof(mmcblk0) - 1;
}
printf("%s: %s\n", 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("%s: perf(ios) rd: %luKB/s(%lu/s) q: %u\n",
path, read_perf, read_ios, queue);
} else {
printf("%s: 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;
}
/* Copied policy from system/core/logd/LogBuffer.cpp */
#define LOG_BUFFER_SIZE (256 * 1024)
#define LOG_BUFFER_MIN_SIZE (64 * 1024UL)
#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL)
static bool valid_size(unsigned long value) {
if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) {
return false;
}
long pages = sysconf(_SC_PHYS_PAGES);
if (pages < 1) {
return true;
}
long pagesize = sysconf(_SC_PAGESIZE);
if (pagesize <= 1) {
pagesize = PAGE_SIZE;
}
// maximum memory impact a somewhat arbitrary ~3%
pages = (pages + 31) / 32;
unsigned long maximum = pages * pagesize;
if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) {
return true;
}
return value <= maximum;
}
static unsigned long property_get_size(const char *key) {
unsigned long value;
char *cp, property[PROPERTY_VALUE_MAX];
property_get(key, property, "");
value = strtoul(property, &cp, 10);
switch(*cp) {
case 'm':
case 'M':
value *= 1024;
/* FALLTHRU */
case 'k':
case 'K':
value *= 1024;
/* FALLTHRU */
case '\0':
break;
default:
value = 0;
}
if (!valid_size(value)) {
value = 0;
}
return value;
}
/* timeout in ms */
static unsigned long logcat_timeout(const char *name) {
static const char global_tuneable[] = "persist.logd.size"; // Settings App
static const char global_default[] = "ro.logd.size"; // BoardConfig.mk
char key[PROP_NAME_MAX];
unsigned long property_size, default_size;
default_size = property_get_size(global_tuneable);
if (!default_size) {
default_size = property_get_size(global_default);
}
snprintf(key, sizeof(key), "%s.%s", global_tuneable, name);
property_size = property_get_size(key);
if (!property_size) {
snprintf(key, sizeof(key), "%s.%s", global_default, name);
property_size = property_get_size(key);
}
if (!property_size) {
property_size = default_size;
}
if (!property_size) {
property_size = LOG_BUFFER_SIZE;
}
/* Engineering margin is ten-fold our guess */
return 10 * (property_size + worst_write_perf) / worst_write_perf;
}
/* End copy from system/core/logd/LogBuffer.cpp */
/* dumps the current system state to stdout */
static void print_header(std::string version) {
char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX];
char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX];
char network[PROPERTY_VALUE_MAX], date[80];
property_get("ro.build.display.id", build, "(unknown)");
property_get("ro.build.fingerprint", fingerprint, "(unknown)");
property_get("ro.build.type", build_type, "(unknown)");
property_get("gsm.version.baseband", radio, "(unknown)");
property_get("ro.bootloader", bootloader, "(unknown)");
property_get("gsm.operator.alpha", network, "(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);
printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */
printf("Bootloader: %s\n", bootloader);
printf("Radio: %s\n", radio);
printf("Network: %s\n", network);
printf("Kernel: ");
dump_file(NULL, "/proc/version");
printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
printf("Bugreport format version: %s\n", version.c_str());
printf("Dumpstate info: id=%lu pid=%d\n", id, getpid());
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"
};
bool add_zip_entry_from_fd(const std::string& entry_name, int fd) {
if (!zip_writer) {
MYLOGD("Not adding zip entry %s from fd because zip_writer is not set\n",
entry_name.c_str());
return false;
}
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, now));
if (err) {
MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", valid_name.c_str(),
ZipWriter::ErrorCodeString(err));
return false;
}
std::vector<uint8_t> buffer(65536);
while (1) {
ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer.data(), sizeof(buffer)));
if (bytes_read == 0) {
break;
} else if (bytes_read == -1) {
MYLOGE("read(%s): %s\n", entry_name.c_str(), strerror(errno));
return false;
}
err = zip_writer->WriteBytes(buffer.data(), bytes_read);
if (err) {
MYLOGE("zip_writer->WriteBytes(): %s\n", ZipWriter::ErrorCodeString(err));
return false;
}
}
err = zip_writer->FinishEntry();
if (err) {
MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err));
return false;
}
return true;
}
bool add_zip_entry(const std::string& entry_name, const std::string& entry_path) {
ScopedFd fd(TEMP_FAILURE_RETRY(open(entry_path.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC)));
if (fd.get() == -1) {
MYLOGE("open(%s): %s\n", entry_path.c_str(), strerror(errno));
return false;
}
return add_zip_entry_from_fd(entry_name, fd.get());
}
/* adds a file to the existing zipped bugreport */
static int _add_file_from_fd(const char *title, const char *path, int fd) {
return add_zip_entry_from_fd(ZIP_ROOT_DIR + path, fd) ? 0 : 1;
}
// TODO: move to util.cpp
void add_dir(const char *dir, bool recursive) {
if (!zip_writer) {
MYLOGD("Not adding dir %s because zip_writer is not set\n", dir);
return;
}
MYLOGD("Adding dir %s (recursive: %d)\n", dir, recursive);
DurationReporter duration_reporter(dir, NULL);
dump_files(NULL, dir, recursive ? skip_none : is_dir, _add_file_from_fd);
}
/* adds a text entry entry to the existing zip file. */
static bool add_text_zip_entry(const std::string& entry_name, const std::string& content) {
if (!zip_writer) {
MYLOGD("Not adding text zip entry %s because zip_writer is not set\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, now);
if (err) {
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) {
MYLOGE("zip_writer->WriteBytes(%s): %s\n", entry_name.c_str(),
ZipWriter::ErrorCodeString(err));
return false;
}
err = zip_writer->FinishEntry();
if (err) {
MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err));
return false;
}
return true;
}
static void dump_iptables() {
run_command("IPTABLES", 10, "iptables", "-L", "-nvx", NULL);
run_command("IP6TABLES", 10, "ip6tables", "-L", "-nvx", NULL);
run_command("IPTABLE NAT", 10, "iptables", "-t", "nat", "-L", "-nvx", NULL);
/* no ip6 nat */
run_command("IPTABLE MANGLE", 10, "iptables", "-t", "mangle", "-L", "-nvx", NULL);
run_command("IP6TABLE MANGLE", 10, "ip6tables", "-t", "mangle", "-L", "-nvx", NULL);
run_command("IPTABLE RAW", 10, "iptables", "-t", "raw", "-L", "-nvx", NULL);
run_command("IP6TABLE RAW", 10, "ip6tables", "-t", "raw", "-L", "-nvx", NULL);
}
static void dumpstate(const std::string& screenshot_path, const std::string& version) {
DurationReporter duration_reporter("DUMPSTATE");
unsigned long timeout;
dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version");
run_command("UPTIME", 10, "uptime", NULL);
dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd);
dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd");
dump_file("MEMORY INFO", "/proc/meminfo");
run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-H", NULL);
run_command("PROCRANK", 20, SU_PATH, "root", "procrank", NULL);
dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat");
dump_file("VMALLOC INFO", "/proc/vmallocinfo");
dump_file("SLAB INFO", "/proc/slabinfo");
dump_file("ZONEINFO", "/proc/zoneinfo");
dump_file("PAGETYPEINFO", "/proc/pagetypeinfo");
dump_file("BUDDYINFO", "/proc/buddyinfo");
dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index");
dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources");
dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
dump_file("KERNEL SYNC", "/d/sync");
run_command("PROCESSES AND THREADS", 10, "ps", "-Z", "-t", "-p", "-P", NULL);
run_command("LIBRANK", 10, SU_PATH, "root", "librank", NULL);
run_command("PRINTENV", 10, "printenv", NULL);
run_command("NETSTAT", 10, "netstat", "-n", NULL);
run_command("LSMOD", 10, "lsmod", NULL);
do_dmesg();
run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL);
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)");
if (!screenshot_path.empty()) {
MYLOGI("taking late screenshot\n");
take_screenshot(screenshot_path);
MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str());
}
// dump_file("EVENT LOG TAGS", "/etc/event-log-tags");
// calculate timeout
timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash");
if (timeout < 20000) {
timeout = 20000;
}
run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime",
"-v", "printable",
"-d",
"*:v", NULL);
timeout = logcat_timeout("events");
if (timeout < 20000) {
timeout = 20000;
}
run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events",
"-v", "threadtime",
"-v", "printable",
"-d",
"*:v", NULL);
timeout = logcat_timeout("radio");
if (timeout < 20000) {
timeout = 20000;
}
run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio",
"-v", "threadtime",
"-v", "printable",
"-d",
"*:v", NULL);
run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL);
/* show the traces we collected in main(), if that was done */
if (dump_traces_path != NULL) {
dump_file("VM TRACES JUST NOW", dump_traces_path);
}
/* only show ANR traces if they're less than 15 minutes old */
struct stat st;
char anr_traces_path[PATH_MAX];
property_get("dalvik.vm.stack-trace-file", anr_traces_path, "");
if (!anr_traces_path[0]) {
printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n");
} else {
int fd = TEMP_FAILURE_RETRY(open(anr_traces_path,
O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK));
if (fd < 0) {
printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
} else {
dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd);
}
}
/* slow traces for slow operations */
if (anr_traces_path[0] != 0) {
int tail = strlen(anr_traces_path)-1;
while (tail > 0 && anr_traces_path[tail] != '/') {
tail--;
}
int i = 0;
while (1) {
sprintf(anr_traces_path+tail+1, "slow%02d.txt", i);
if (stat(anr_traces_path, &st)) {
// No traces file at this index, done with the files.
break;
}
dump_file("VM TRACES WHEN SLOW", anr_traces_path);
i++;
}
}
int dumped = 0;
for (size_t i = 0; i < NUM_TOMBSTONES; i++) {
if (tombstone_data[i].fd != -1) {
const char *name = tombstone_data[i].name;
int fd = tombstone_data[i].fd;
dumped = 1;
if (zip_writer) {
if (!add_zip_entry_from_fd(ZIP_ROOT_DIR + name, fd)) {
MYLOGE("Unable to add tombstone %s to zip file\n", name);
}
} else {
dump_file_from_fd("TOMBSTONE", name, fd);
}
close(fd);
tombstone_data[i].fd = -1;
}
}
if (!dumped) {
printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR);
}
dump_file("NETWORK DEV INFO", "/proc/net/dev");
dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all");
dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt");
dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl");
dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats");
if (!stat(PSTORE_LAST_KMSG, &st)) {
/* Also TODO: Make console-ramoops CAP_SYSLOG protected. */
dump_file("LAST KMSG", PSTORE_LAST_KMSG);
} else if (!stat(ALT_PSTORE_LAST_KMSG, &st)) {
dump_file("LAST KMSG", ALT_PSTORE_LAST_KMSG);
} else {
/* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */
dump_file("LAST KMSG", "/proc/last_kmsg");
}
/* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */
run_command("LAST LOGCAT", 10, "logcat", "-L",
"-b", "all",
"-v", "threadtime",
"-v", "printable",
"-d",
"*:v", NULL);
/* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */
run_command("NETWORK INTERFACES", 10, "ip", "link", NULL);
run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL);
run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL);
run_command("IP RULES", 10, "ip", "rule", "show", NULL);
run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL);
dump_route_tables();
run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL);
run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL);
run_command("MULTICAST ADDRESSES", 10, "ip", "maddr", NULL);
run_command("WIFI NETWORKS", 20, "wpa_cli", "IFNAME=wlan0", "list_networks", NULL);
#ifdef FWDUMP_bcmdhd
run_command("ND OFFLOAD TABLE", 5,
SU_PATH, "root", WLUTIL, "nd_hostip", NULL);
run_command("DUMP WIFI INTERNAL COUNTERS (1)", 20,
SU_PATH, "root", WLUTIL, "counters", NULL);
run_command("ND OFFLOAD STATUS (1)", 5,
SU_PATH, "root", WLUTIL, "nd_status", NULL);
#endif
dump_file("INTERRUPTS (1)", "/proc/interrupts");
run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "-t", "10", "connectivity", "--diag", NULL);
#ifdef FWDUMP_bcmdhd
run_command("DUMP WIFI STATUS", 20,
SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL);
run_command("DUMP WIFI INTERNAL COUNTERS (2)", 20,
SU_PATH, "root", WLUTIL, "counters", NULL);
run_command("ND OFFLOAD STATUS (2)", 5,
SU_PATH, "root", WLUTIL, "nd_status", NULL);
#endif
dump_file("INTERRUPTS (2)", "/proc/interrupts");
print_properties();
run_command("VOLD DUMP", 10, "vdc", "dump", NULL);
run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL);
run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL);
run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL);
printf("------ BACKLIGHTS ------\n");
printf("LCD brightness=");
dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness");
printf("Button brightness=");
dump_file(NULL, "/sys/class/leds/button-backlight/brightness");
printf("Keyboard brightness=");
dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness");
printf("ALS mode=");
dump_file(NULL, "/sys/class/leds/lcd-backlight/als");
printf("LCD driver registers:\n");
dump_file(NULL, "/sys/class/leds/lcd-backlight/registers");
printf("\n");
/* Binder state is expensive to look at as it uses a lot of memory. */
dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log");
dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log");
dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions");
dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats");
dump_file("BINDER STATE", "/sys/kernel/debug/binder/state");
printf("========================================================\n");
printf("== Board\n");
printf("========================================================\n");
dumpstate_board();
printf("\n");
/* Migrate the ril_dumpstate to a dumpstate_board()? */
char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0};
property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30");
if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) {
if (is_user_build()) {
// 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.
run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout),
"vril-dump", NULL);
} else {
run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout),
SU_PATH, "root", "vril-dump", NULL);
}
}
printf("========================================================\n");
printf("== Android Framework Services\n");
printf("========================================================\n");
run_command("DUMPSYS", 60, "dumpsys", "-t", "60", "--skip", "meminfo", "cpuinfo", NULL);
printf("========================================================\n");
printf("== Checkins\n");
printf("========================================================\n");
run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "-t", "30", "batterystats", "-c", NULL);
run_command("CHECKIN MEMINFO", 30, "dumpsys", "-t", "30", "meminfo", "--checkin", NULL);
run_command("CHECKIN NETSTATS", 30, "dumpsys", "-t", "30", "netstats", "--checkin", NULL);
run_command("CHECKIN PROCSTATS", 30, "dumpsys", "-t", "30", "procstats", "-c", NULL);
run_command("CHECKIN USAGESTATS", 30, "dumpsys", "-t", "30", "usagestats", "-c", NULL);
run_command("CHECKIN PACKAGE", 30, "dumpsys", "-t", "30", "package", "--checkin", NULL);
printf("========================================================\n");
printf("== Running Application Activities\n");
printf("========================================================\n");
run_command("APP ACTIVITIES", 30, "dumpsys", "-t", "30", "activity", "all", NULL);
printf("========================================================\n");
printf("== Running Application Services\n");
printf("========================================================\n");
run_command("APP SERVICES", 30, "dumpsys", "-t", "30", "activity", "service", "all", NULL);
printf("========================================================\n");
printf("== Running Application Providers\n");
printf("========================================================\n");
run_command("APP PROVIDERS", 30, "dumpsys", "-t", "30", "activity", "provider", "all", NULL);
printf("========================================================\n");
printf("== Final progress (pid %d): %d/%d (originally %d)\n",
getpid(), progress, weight_total, WEIGHT_TOTAL);
printf("========================================================\n");
printf("== dumpstate: done\n");
printf("========================================================\n");
}
static void usage() {
fprintf(stderr,
"usage: dumpstate [-h] [-b soundfile] [-e soundfile] [-o file [-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"
" -o: write to file (instead of stdout)\n"
" -d: append date to filename (requires -o)\n"
" -p: capture screenshot to filename.png (requires -o)\n"
" -z: generate zipped file (requires -o)\n"
" -s: write output to control socket (for init)\n"
" -S: write file location to control socket (for init; requires -o and -z)"
" -q: disable vibrate\n"
" -B: send broadcast when finished (requires -o)\n"
" -P: send broadcast when started and update system properties on "
"progress (requires -o and -B)\n"
" -R: take bugreport in remote mode (requires -o, -z, -d and -B, "
"shouldn't be used with -P)\n"
" -V: sets the bugreport format version (valid values: %s)\n",
VERSION_DEFAULT.c_str());
}
static void wake_lock_releaser() {
if (release_wake_lock(WAKE_LOCK_NAME) < 0) {
MYLOGE("Failed to release wake lock: %s \n", strerror(errno));
} else {
MYLOGD("Wake lock released.\n");
}
}
static void sig_handler(int signo) {
wake_lock_releaser();
_exit(EXIT_FAILURE);
}
static void register_sig_handler() {
struct sigaction sa;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sa.sa_handler = sig_handler;
sigaction(SIGPIPE, &sa, NULL); // broken pipe
sigaction(SIGSEGV, &sa, NULL); // segment fault
sigaction(SIGINT, &sa, NULL); // ctrl-c
sigaction(SIGTERM, &sa, NULL); // killed
sigaction(SIGQUIT, &sa, NULL); // quit
}
/* adds the temporary report to the existing .zip file, closes the .zip file, and removes the
temporary file.
*/
static bool finish_zip_file(const std::string& bugreport_name, const std::string& bugreport_path,
time_t now) {
if (!add_zip_entry(bugreport_name, bugreport_path)) {
MYLOGE("Failed to add text entry to .zip file\n");
return false;
}
if (!add_text_zip_entry("main_entry.txt", bugreport_name)) {
MYLOGE("Failed to add main_entry.txt to .zip file\n");
return false;
}
int32_t err = zip_writer->Finish();
if (err) {
MYLOGE("zip_writer->Finish(): %s\n", ZipWriter::ErrorCodeString(err));
return false;
}
if (is_user_build()) {
MYLOGD("Removing temporary file %s\n", bugreport_path.c_str())
if (remove(bugreport_path.c_str())) {
ALOGW("remove(%s): %s\n", bugreport_path.c_str(), strerror(errno));
}
} else {
MYLOGD("Keeping temporary file %s on non-user build\n", bugreport_path.c_str())
}
return true;
}
static std::string SHA256_file_hash(std::string filepath) {
ScopedFd fd(TEMP_FAILURE_RETRY(open(filepath.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC
| O_NOFOLLOW)));
if (fd.get() == -1) {
MYLOGE("open(%s): %s\n", filepath.c_str(), strerror(errno));
return NULL;
}
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 NULL;
}
SHA256_update(&ctx, buffer.data(), bytes_read);
}
uint8_t hash[SHA256_DIGEST_SIZE];
memcpy(hash, SHA256_final(&ctx), SHA256_DIGEST_SIZE);
char hash_buffer[SHA256_DIGEST_SIZE * 2 + 1];
for(size_t i = 0; i < SHA256_DIGEST_SIZE; i++) {
sprintf(hash_buffer + (i * 2), "%02x", hash[i]);
}
hash_buffer[sizeof(hash_buffer) - 1] = 0;
return std::string(hash_buffer);
}
int main(int argc, char *argv[]) {
int do_add_date = 0;
int do_zip_file = 0;
int do_vibrate = 1;
char* use_outfile = 0;
int use_socket = 0;
int use_control_socket = 0;
int do_fb = 0;
int do_broadcast = 0;
int do_early_screenshot = 0;
int is_remote_mode = 0;
std::string version = VERSION_DEFAULT;
now = time(NULL);
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 {
MYLOGD("Wake lock acquired.\n");
atexit(wake_lock_releaser);
register_sig_handler();
}
/* gets the sequential id */
char last_id[PROPERTY_VALUE_MAX];
property_get("dumpstate.last_id", last_id, "0");
id = strtoul(last_id, NULL, 10) + 1;
snprintf(last_id, sizeof(last_id), "%lu", id);
property_set("dumpstate.last_id", last_id);
MYLOGI("dumpstate id: %lu\n", id);
/* 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);
}
}
/* parse arguments */
std::string args;
format_args(argc, const_cast<const char **>(argv), &args);
MYLOGD("Dumpstate command line: %s\n", args.c_str());
int c;
while ((c = getopt(argc, argv, "dho:svqzpPBRSV:")) != -1) {
switch (c) {
case 'd': do_add_date = 1; break;
case 'z': do_zip_file = 1; break;
case 'o': use_outfile = optarg; break;
case 's': use_socket = 1; break;
case 'S': use_control_socket = 1; break;
case 'v': break; // compatibility no-op
case 'q': do_vibrate = 0; break;
case 'p': do_fb = 1; break;
case 'P': do_update_progress = 1; break;
case 'R': is_remote_mode = 1; break;
case 'B': do_broadcast = 1; break;
case 'V': version = optarg; break;
case '?': printf("\n");
case 'h':
usage();
exit(1);
}
}
if ((do_zip_file || do_add_date || do_update_progress || do_broadcast) && !use_outfile) {
usage();
exit(1);
}
if (use_control_socket && !do_zip_file) {
usage();
exit(1);
}
if (do_update_progress && !do_broadcast) {
usage();
exit(1);
}
if (is_remote_mode && (do_update_progress || !do_broadcast || !do_zip_file || !do_add_date)) {
usage();
exit(1);
}
if (version != VERSION_DEFAULT) {
usage();
exit(1);
}
MYLOGI("bugreport format version: %s\n", version.c_str());
do_early_screenshot = do_update_progress;
// If we are going to use a socket, do it as early as possible
// to avoid timeouts from bugreport.
if (use_socket) {
redirect_to_socket(stdout, "dumpstate");
}
if (use_control_socket) {
MYLOGD("Opening control socket\n");
control_socket_fd = open_socket("dumpstate");
do_update_progress = 1;
}
/* full path of the temporary file containing the bugreport */
std::string tmp_path;
/* full path of the file containing the dumpstate logs*/
std::string log_path;
/* full path of the systrace file, when enabled */
std::string systrace_path;
/* full path of the temporary file containing the screenshot (when requested) */
std::string screenshot_path;
/* base name (without suffix or extensions) of the bugreport files */
std::string base_name;
/* pointer to the actual path, be it zip or text */
std::string path;
/* pointer to the zipped file */
std::unique_ptr<FILE, int(*)(FILE*)> zip_file(NULL, fclose);
/* redirect output if needed */
bool is_redirecting = !use_socket && use_outfile;
if (is_redirecting) {
bugreport_dir = dirname(use_outfile);
base_name = basename(use_outfile);
if (do_add_date) {
char date[80];
strftime(date, sizeof(date), "%Y-%m-%d-%H-%M-%S", localtime(&now));
suffix = date;
} else {
suffix = "undated";
}
char build_id[PROPERTY_VALUE_MAX];
property_get("ro.build.id", build_id, "UNKNOWN_BUILD");
base_name = base_name + "-" + build_id;
if (do_fb) {
// TODO: if dumpstate was an object, the paths could be internal variables and then
// we could have a function to calculate the derived values, such as:
// screenshot_path = GetPath(".png");
screenshot_path = bugreport_dir + "/" + base_name + "-" + suffix + ".png";
}
tmp_path = bugreport_dir + "/" + base_name + "-" + suffix + ".tmp";
log_path = bugreport_dir + "/dumpstate_log-" + suffix + "-"
+ std::to_string(getpid()) + ".txt";
MYLOGD("Bugreport dir: %s\n"
"Base name: %s\n"
"Suffix: %s\n"
"Log path: %s\n"
"Temporary path: %s\n"
"Screenshot path: %s\n",
bugreport_dir.c_str(), base_name.c_str(), suffix.c_str(),
log_path.c_str(), tmp_path.c_str(), screenshot_path.c_str());
if (do_zip_file) {
path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip";
MYLOGD("Creating initial .zip file (%s)\n", path.c_str());
create_parent_dirs(path.c_str());
zip_file.reset(fopen(path.c_str(), "wb"));
if (!zip_file) {
MYLOGE("fopen(%s, 'wb'): %s\n", path.c_str(), strerror(errno));
do_zip_file = 0;
} else {
zip_writer.reset(new ZipWriter(zip_file.get()));
}
add_text_zip_entry("version.txt", version);
}
if (do_update_progress) {
if (do_broadcast) {
// clang-format off
std::vector<std::string> am_args = {
"--receiver-permission", "android.permission.DUMP", "--receiver-foreground",
"--es", "android.intent.extra.NAME", suffix,
"--ei", "android.intent.extra.ID", std::to_string(id),
"--ei", "android.intent.extra.PID", std::to_string(getpid()),
"--ei", "android.intent.extra.MAX", std::to_string(WEIGHT_TOTAL),
};
// clang-format on
send_broadcast("android.intent.action.BUGREPORT_STARTED", am_args);
}
if (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);
}
/* open the vibrator before dropping root */
std::unique_ptr<FILE, int(*)(FILE*)> vibrator(NULL, fclose);
if (do_vibrate) {
vibrator.reset(fopen("/sys/class/timed_output/vibrator/enable", "we"));
if (vibrator) {
vibrate(vibrator.get(), 150);
}
}
if (do_fb && do_early_screenshot) {
if (screenshot_path.empty()) {
// should not have happened
MYLOGE("INTERNAL ERROR: skipping early screenshot because path was not set\n");
} else {
MYLOGI("taking early screenshot\n");
take_screenshot(screenshot_path);
MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str());
if (chown(screenshot_path.c_str(), AID_SHELL, AID_SHELL)) {
MYLOGE("Unable to change ownership of screenshot file %s: %s\n",
screenshot_path.c_str(), strerror(errno));
}
}
}
if (do_zip_file) {
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));
}
}
if (is_redirecting) {
redirect_to_file(stderr, const_cast<char*>(log_path.c_str()));
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));
}
/* 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. */
redirect_to_file(stdout, const_cast<char*>(tmp_path.c_str()));
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));
}
}
// 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.
print_header(version);
// Dumps systrace right away, otherwise it will be filled with unnecessary events.
// First try to dump anrd trace if the daemon is running. Otherwise, dump
// the raw trace.
if (!dump_anrd_trace()) {
dump_systrace();
}
// TODO: Drop root user and move into dumpstate() once b/28633932 is fixed.
dump_raft();
// Invoking the following dumpsys calls before dump_traces() to try and
// keep the system stats as close to its initial state as possible.
run_command_as_shell("DUMPSYS MEMINFO", 30, "dumpsys", "-t", "30", "meminfo", "-a", NULL);
run_command_as_shell("DUMPSYS CPUINFO", 10, "dumpsys", "-t", "10", "cpuinfo", "-a", NULL);
/* collect stack traces from Dalvik and native processes (needs root) */
dump_traces_path = dump_traces();
/* Run some operations that require root. */
get_tombstone_fds(tombstone_data);
add_dir(RECOVERY_DIR, true);
add_dir(RECOVERY_DATA_DIR, true);
add_dir(LOGPERSIST_DATA_DIR, false);
if (!is_user_build()) {
add_dir(PROFILE_DATA_DIR_CUR, true);
add_dir(PROFILE_DATA_DIR_REF, true);
}
add_mountinfo();
dump_iptables();
// Run ss as root so we can see socket marks.
run_command("DETAILED SOCKET STATE", 10, "ss", "-eionptu", NULL);
if (!drop_root_user()) {
return -1;
}
dumpstate(do_early_screenshot ? "": screenshot_path, version);
/* close output if needed */
if (is_redirecting) {
fclose(stdout);
}
/* rename or zip the (now complete) .tmp file to its final location */
if (use_outfile) {
/* check if user changed the suffix using system properties */
char key[PROPERTY_KEY_MAX];
char value[PROPERTY_VALUE_MAX];
snprintf(key, sizeof(key), "dumpstate.%d.name", getpid());
property_get(key, value, "");
bool change_suffix= false;
if (value[0]) {
/* must whitelist which characters are allowed, otherwise it could cross directories */
std::regex valid_regex("^[-_a-zA-Z0-9]+$");
if (std::regex_match(value, valid_regex)) {
change_suffix = true;
} else {
MYLOGE("invalid suffix provided by user: %s\n", value);
}
}
if (change_suffix) {
MYLOGI("changing suffix from %s to %s\n", suffix.c_str(), value);
suffix = value;
if (!screenshot_path.empty()) {
std::string new_screenshot_path =
bugreport_dir + "/" + base_name + "-" + suffix + ".png";
if (rename(screenshot_path.c_str(), new_screenshot_path.c_str())) {
MYLOGE("rename(%s, %s): %s\n", screenshot_path.c_str(),
new_screenshot_path.c_str(), strerror(errno));
} else {
screenshot_path = new_screenshot_path;
}
}
}
bool do_text_file = true;
if (do_zip_file) {
std::string entry_name = base_name + "-" + suffix + ".txt";
MYLOGD("Adding main entry (%s) to .zip bugreport\n", entry_name.c_str());
if (!finish_zip_file(entry_name, tmp_path, now)) {
MYLOGE("Failed to finish zip file; sending text bugreport instead\n");
do_text_file = true;
} else {
do_text_file = false;
// Since zip file is already created, it needs to be renamed.
std::string new_path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip";
if (path != new_path) {
MYLOGD("Renaming zip file from %s to %s\n", path.c_str(), new_path.c_str());
if (rename(path.c_str(), new_path.c_str())) {
MYLOGE("rename(%s, %s): %s\n", path.c_str(),
new_path.c_str(), strerror(errno));
} else {
path = new_path;
}
}
}
}
if (do_text_file) {
path = bugreport_dir + "/" + base_name + "-" + suffix + ".txt";
MYLOGD("Generating .txt bugreport at %s from %s\n", path.c_str(), tmp_path.c_str());
if (rename(tmp_path.c_str(), path.c_str())) {
MYLOGE("rename(%s, %s): %s\n", tmp_path.c_str(), path.c_str(), strerror(errno));
path.clear();
}
}
if (use_control_socket) {
if (do_text_file) {
dprintf(control_socket_fd, "FAIL:could not create zip file, check %s "
"for more details\n", log_path.c_str());
} else {
dprintf(control_socket_fd, "OK:%s\n", path.c_str());
}
}
}
/* vibrate a few but shortly times to let user know it's finished */
if (vibrator) {
for (int i = 0; i < 3; i++) {
vibrate(vibrator.get(), 75);
usleep((75 + 50) * 1000);
}
}
/* tell activity manager we're done */
if (do_broadcast) {
if (!path.empty()) {
MYLOGI("Final bugreport path: %s\n", path.c_str());
// clang-format off
std::vector<std::string> am_args = {
"--receiver-permission", "android.permission.DUMP", "--receiver-foreground",
"--ei", "android.intent.extra.ID", std::to_string(id),
"--ei", "android.intent.extra.PID", std::to_string(getpid()),
"--ei", "android.intent.extra.MAX", std::to_string(weight_total),
"--es", "android.intent.extra.BUGREPORT", path,
"--es", "android.intent.extra.DUMPSTATE_LOG", log_path
};
// clang-format on
if (do_fb) {
am_args.push_back("--es");
am_args.push_back("android.intent.extra.SCREENSHOT");
am_args.push_back(screenshot_path);
}
if (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(path));
send_broadcast("android.intent.action.REMOTE_BUGREPORT_FINISHED", am_args);
} else {
send_broadcast("android.intent.action.BUGREPORT_FINISHED", am_args);
}
} else {
MYLOGE("Skipping finished broadcast because bugreport could not be generated\n");
}
}
MYLOGD("Final progress: %d/%d (originally %d)\n", progress, weight_total, WEIGHT_TOTAL);
MYLOGI("done\n");
if (is_redirecting) {
fclose(stderr);
}
if (use_control_socket && control_socket_fd != -1) {
MYLOGD("Closing control socket\n");
close(control_socket_fd);
}
return 0;
}