771 lines
26 KiB
C
771 lines
26 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/capability.h>
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#include <sys/prctl.h>
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#include <sys/resource.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <cutils/properties.h>
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#include "private/android_filesystem_config.h"
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#define LOG_TAG "dumpstate"
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#include <cutils/log.h>
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#include "dumpstate.h"
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/* read before root is shed */
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static char cmdline_buf[16384] = "(unknown)";
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static const char *dump_traces_path = NULL;
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static char screenshot_path[PATH_MAX] = "";
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#define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops"
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#define RAFT_DIR "/data/misc/raft/"
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#define TOMBSTONE_DIR "/data/tombstones"
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#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_"
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/* Can accomodate a tombstone number up to 9999. */
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#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4)
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#define NUM_TOMBSTONES 10
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typedef struct {
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char name[TOMBSTONE_MAX_LEN];
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int fd;
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} tombstone_data_t;
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static tombstone_data_t tombstone_data[NUM_TOMBSTONES];
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/* Get the fds of any tombstone that was modified in the last half an hour. */
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static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) {
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time_t thirty_minutes_ago = time(NULL) - 60*30;
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for (size_t i = 0; i < NUM_TOMBSTONES; i++) {
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snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i);
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int fd = TEMP_FAILURE_RETRY(open(data[i].name,
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O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK));
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struct stat st;
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if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) &&
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(time_t) st.st_mtime >= thirty_minutes_ago) {
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data[i].fd = fd;
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} else {
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close(fd);
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data[i].fd = -1;
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}
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}
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}
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static void dump_dev_files(const char *title, const char *driverpath, const char *filename)
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{
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DIR *d;
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struct dirent *de;
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char path[PATH_MAX];
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d = opendir(driverpath);
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if (d == NULL) {
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return;
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}
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while ((de = readdir(d))) {
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if (de->d_type != DT_LNK) {
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continue;
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}
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snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename);
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dump_file(title, path);
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}
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closedir(d);
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}
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static bool skip_not_stat(const char *path) {
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static const char stat[] = "/stat";
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size_t len = strlen(path);
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if (path[len - 1] == '/') { /* Directory? */
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return false;
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}
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return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */
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}
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static const char mmcblk0[] = "/sys/block/mmcblk0/";
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unsigned long worst_write_perf = 20000; /* in KB/s */
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static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) {
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unsigned long fields[11], read_perf, write_perf;
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bool z;
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char *cp, *buffer = NULL;
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size_t i = 0;
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FILE *fp = fdopen(fd, "rb");
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getline(&buffer, &i, fp);
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fclose(fp);
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if (!buffer) {
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return -errno;
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}
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i = strlen(buffer);
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while ((i > 0) && (buffer[i - 1] == '\n')) {
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buffer[--i] = '\0';
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}
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if (!*buffer) {
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free(buffer);
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return 0;
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}
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z = true;
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for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) {
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fields[i] = strtol(cp, &cp, 0);
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if (fields[i] != 0) {
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z = false;
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}
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}
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if (z) { /* never accessed */
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free(buffer);
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return 0;
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}
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if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) {
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path += sizeof(mmcblk0) - 1;
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}
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printf("%s: %s\n", path, buffer);
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free(buffer);
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read_perf = 0;
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if (fields[3]) {
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read_perf = 512 * fields[2] / fields[3];
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}
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write_perf = 0;
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if (fields[7]) {
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write_perf = 512 * fields[6] / fields[7];
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}
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printf("%s: read: %luKB/s write: %luKB/s\n", path, read_perf, write_perf);
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if ((write_perf > 1) && (write_perf < worst_write_perf)) {
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worst_write_perf = write_perf;
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}
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return 0;
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}
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/* Copied policy from system/core/logd/LogBuffer.cpp */
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#define LOG_BUFFER_SIZE (256 * 1024)
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#define LOG_BUFFER_MIN_SIZE (64 * 1024UL)
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#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL)
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static bool valid_size(unsigned long value) {
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if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) {
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return false;
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}
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long pages = sysconf(_SC_PHYS_PAGES);
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if (pages < 1) {
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return true;
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}
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long pagesize = sysconf(_SC_PAGESIZE);
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if (pagesize <= 1) {
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pagesize = PAGE_SIZE;
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}
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// maximum memory impact a somewhat arbitrary ~3%
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pages = (pages + 31) / 32;
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unsigned long maximum = pages * pagesize;
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if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) {
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return true;
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}
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return value <= maximum;
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}
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static unsigned long property_get_size(const char *key) {
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unsigned long value;
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char *cp, property[PROPERTY_VALUE_MAX];
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property_get(key, property, "");
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value = strtoul(property, &cp, 10);
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switch(*cp) {
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case 'm':
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case 'M':
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value *= 1024;
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/* FALLTHRU */
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case 'k':
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case 'K':
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value *= 1024;
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/* FALLTHRU */
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case '\0':
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break;
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default:
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value = 0;
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}
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if (!valid_size(value)) {
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value = 0;
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}
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return value;
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}
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/* timeout in ms */
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static unsigned long logcat_timeout(char *name) {
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static const char global_tuneable[] = "persist.logd.size"; // Settings App
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static const char global_default[] = "ro.logd.size"; // BoardConfig.mk
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char key[PROP_NAME_MAX];
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unsigned long property_size, default_size;
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default_size = property_get_size(global_tuneable);
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if (!default_size) {
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default_size = property_get_size(global_default);
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}
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snprintf(key, sizeof(key), "%s.%s", global_tuneable, name);
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property_size = property_get_size(key);
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if (!property_size) {
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snprintf(key, sizeof(key), "%s.%s", global_default, name);
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property_size = property_get_size(key);
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}
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if (!property_size) {
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property_size = default_size;
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}
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if (!property_size) {
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property_size = LOG_BUFFER_SIZE;
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}
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/* Engineering margin is ten-fold our guess */
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return 10 * (property_size + worst_write_perf) / worst_write_perf;
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}
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/* End copy from system/core/logd/LogBuffer.cpp */
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/* dumps the current system state to stdout */
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static void dumpstate() {
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unsigned long timeout;
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time_t now = time(NULL);
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char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX];
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char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX];
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char network[PROPERTY_VALUE_MAX], date[80];
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char build_type[PROPERTY_VALUE_MAX];
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property_get("ro.build.display.id", build, "(unknown)");
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property_get("ro.build.fingerprint", fingerprint, "(unknown)");
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property_get("ro.build.type", build_type, "(unknown)");
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property_get("ro.baseband", radio, "(unknown)");
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property_get("ro.bootloader", bootloader, "(unknown)");
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property_get("gsm.operator.alpha", network, "(unknown)");
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strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now));
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printf("========================================================\n");
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printf("== dumpstate: %s\n", date);
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printf("========================================================\n");
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printf("\n");
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printf("Build: %s\n", build);
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printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */
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printf("Bootloader: %s\n", bootloader);
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printf("Radio: %s\n", radio);
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printf("Network: %s\n", network);
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printf("Kernel: ");
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dump_file(NULL, "/proc/version");
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printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
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printf("\n");
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dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version");
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run_command("UPTIME", 10, "uptime", NULL);
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dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd);
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dump_file("MEMORY INFO", "/proc/meminfo");
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run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL);
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run_command("PROCRANK", 20, "procrank", NULL);
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dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat");
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dump_file("VMALLOC INFO", "/proc/vmallocinfo");
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dump_file("SLAB INFO", "/proc/slabinfo");
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dump_file("ZONEINFO", "/proc/zoneinfo");
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dump_file("PAGETYPEINFO", "/proc/pagetypeinfo");
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dump_file("BUDDYINFO", "/proc/buddyinfo");
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dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index");
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dump_file("KERNEL WAKELOCKS", "/proc/wakelocks");
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dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources");
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dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
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dump_file("KERNEL SYNC", "/d/sync");
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run_command("PROCESSES", 10, "ps", "-P", NULL);
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run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL);
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run_command("PROCESSES (SELINUX LABELS)", 10, "ps", "-Z", NULL);
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run_command("LIBRANK", 10, "librank", NULL);
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do_dmesg();
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run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL);
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for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES");
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for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS");
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if (screenshot_path[0]) {
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ALOGI("taking screenshot\n");
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run_command(NULL, 10, "/system/bin/screencap", "-p", screenshot_path, NULL);
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ALOGI("wrote screenshot: %s\n", screenshot_path);
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}
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// dump_file("EVENT LOG TAGS", "/etc/event-log-tags");
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// calculate timeout
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timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash");
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if (timeout < 20000) {
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timeout = 20000;
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}
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run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime", "-d", "*:v", NULL);
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timeout = logcat_timeout("events");
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if (timeout < 20000) {
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timeout = 20000;
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}
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run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events", "-v", "threadtime", "-d", "*:v", NULL);
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timeout = logcat_timeout("radio");
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if (timeout < 20000) {
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timeout = 20000;
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}
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run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio", "-v", "threadtime", "-d", "*:v", NULL);
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run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL);
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run_command("RAFT LOGS", 300, SU_PATH, "root", "logcompressor", "-r", RAFT_DIR, NULL);
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/* show the traces we collected in main(), if that was done */
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if (dump_traces_path != NULL) {
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dump_file("VM TRACES JUST NOW", dump_traces_path);
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}
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/* only show ANR traces if they're less than 15 minutes old */
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struct stat st;
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char anr_traces_path[PATH_MAX];
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property_get("dalvik.vm.stack-trace-file", anr_traces_path, "");
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if (!anr_traces_path[0]) {
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printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n");
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} else {
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int fd = TEMP_FAILURE_RETRY(open(anr_traces_path,
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O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK));
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if (fd < 0) {
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printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
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} else {
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dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd);
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}
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}
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/* slow traces for slow operations */
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if (anr_traces_path[0] != 0) {
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int tail = strlen(anr_traces_path)-1;
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while (tail > 0 && anr_traces_path[tail] != '/') {
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tail--;
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}
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int i = 0;
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while (1) {
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sprintf(anr_traces_path+tail+1, "slow%02d.txt", i);
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if (stat(anr_traces_path, &st)) {
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// No traces file at this index, done with the files.
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break;
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}
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dump_file("VM TRACES WHEN SLOW", anr_traces_path);
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i++;
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}
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}
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int dumped = 0;
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for (size_t i = 0; i < NUM_TOMBSTONES; i++) {
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if (tombstone_data[i].fd != -1) {
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dumped = 1;
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dump_file_from_fd("TOMBSTONE", tombstone_data[i].name, tombstone_data[i].fd);
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tombstone_data[i].fd = -1;
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}
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}
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if (!dumped) {
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printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR);
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}
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dump_file("NETWORK DEV INFO", "/proc/net/dev");
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dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all");
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dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt");
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dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl");
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dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats");
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if (!stat(PSTORE_LAST_KMSG, &st)) {
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/* Also TODO: Make console-ramoops CAP_SYSLOG protected. */
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dump_file("LAST KMSG", PSTORE_LAST_KMSG);
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} else {
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/* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */
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dump_file("LAST KMSG", "/proc/last_kmsg");
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}
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/* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */
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run_command("LAST LOGCAT", 10, "logcat", "-L", "-v", "threadtime",
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"-b", "all", "-d", "*:v", NULL);
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/* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */
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run_command("NETWORK INTERFACES", 10, "ip", "link", NULL);
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run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL);
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run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL);
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run_command("IP RULES", 10, "ip", "rule", "show", NULL);
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run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL);
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dump_route_tables();
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run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL);
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run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL);
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run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL);
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run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL);
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run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL);
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/* no ip6 nat */
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run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL);
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run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL);
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run_command("WIFI NETWORKS", 20,
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SU_PATH, "root", "wpa_cli", "IFNAME=wlan0", "list_networks", NULL);
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#ifdef FWDUMP_bcmdhd
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run_command("ND OFFLOAD TABLE", 5,
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SU_PATH, "root", "wlutil", "nd_hostip", NULL);
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run_command("DUMP WIFI INTERNAL COUNTERS (1)", 20,
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SU_PATH, "root", "wlutil", "counters", NULL);
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run_command("ND OFFLOAD STATUS (1)", 5,
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SU_PATH, "root", "wlutil", "nd_status", NULL);
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#endif
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dump_file("INTERRUPTS (1)", "/proc/interrupts");
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run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "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 (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) {
|
|
// 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");
|
|
|
|
/* the full dumpsys is starting to take a long time, so we need
|
|
to increase its timeout. we really need to do the timeouts in
|
|
dumpsys itself... */
|
|
run_command("DUMPSYS", 60, "dumpsys", NULL);
|
|
|
|
printf("========================================================\n");
|
|
printf("== Checkins\n");
|
|
printf("========================================================\n");
|
|
|
|
run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "batterystats", "-c", NULL);
|
|
run_command("CHECKIN MEMINFO", 30, "dumpsys", "meminfo", "--checkin", NULL);
|
|
run_command("CHECKIN NETSTATS", 30, "dumpsys", "netstats", "--checkin", NULL);
|
|
run_command("CHECKIN PROCSTATS", 30, "dumpsys", "procstats", "-c", NULL);
|
|
run_command("CHECKIN USAGESTATS", 30, "dumpsys", "usagestats", "-c", NULL);
|
|
run_command("CHECKIN PACKAGE", 30, "dumpsys", "package", "--checkin", NULL);
|
|
|
|
printf("========================================================\n");
|
|
printf("== Running Application Activities\n");
|
|
printf("========================================================\n");
|
|
|
|
run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL);
|
|
|
|
printf("========================================================\n");
|
|
printf("== Running Application Services\n");
|
|
printf("========================================================\n");
|
|
|
|
run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL);
|
|
|
|
printf("========================================================\n");
|
|
printf("== Running Application Providers\n");
|
|
printf("========================================================\n");
|
|
|
|
run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL);
|
|
|
|
|
|
printf("========================================================\n");
|
|
printf("== dumpstate: done\n");
|
|
printf("========================================================\n");
|
|
}
|
|
|
|
static void usage() {
|
|
fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s] [-q]\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"
|
|
" -s: write output to control socket (for init)\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"
|
|
" -q: disable vibrate\n"
|
|
" -B: send broadcast when finished (requires -o and -p)\n"
|
|
);
|
|
}
|
|
|
|
static void sigpipe_handler(int n) {
|
|
// don't complain to stderr or stdout
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
static void vibrate(FILE* vibrator, int ms) {
|
|
fprintf(vibrator, "%d\n", ms);
|
|
fflush(vibrator);
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
struct sigaction sigact;
|
|
int do_add_date = 0;
|
|
int do_vibrate = 1;
|
|
char* use_outfile = 0;
|
|
int use_socket = 0;
|
|
int do_fb = 0;
|
|
int do_broadcast = 0;
|
|
|
|
if (getuid() != 0) {
|
|
// Old versions of the adb client would call the
|
|
// dumpstate command directly. Newer clients
|
|
// call /system/bin/bugreport instead. If we detect
|
|
// we're being called incorrectly, then exec the
|
|
// correct program.
|
|
return execl("/system/bin/bugreport", "/system/bin/bugreport", NULL);
|
|
}
|
|
|
|
ALOGI("begin\n");
|
|
|
|
/* clear SIGPIPE handler */
|
|
memset(&sigact, 0, sizeof(sigact));
|
|
sigact.sa_handler = sigpipe_handler;
|
|
sigaction(SIGPIPE, &sigact, NULL);
|
|
|
|
/* set as high priority, and protect from OOM killer */
|
|
setpriority(PRIO_PROCESS, 0, -20);
|
|
FILE *oom_adj = fopen("/proc/self/oom_adj", "we");
|
|
if (oom_adj) {
|
|
fputs("-17", oom_adj);
|
|
fclose(oom_adj);
|
|
}
|
|
|
|
/* parse arguments */
|
|
int c;
|
|
while ((c = getopt(argc, argv, "dho:svqzpB")) != -1) {
|
|
switch (c) {
|
|
case 'd': do_add_date = 1; break;
|
|
case 'o': use_outfile = optarg; break;
|
|
case 's': use_socket = 1; break;
|
|
case 'v': break; // compatibility no-op
|
|
case 'q': do_vibrate = 0; break;
|
|
case 'p': do_fb = 1; break;
|
|
case 'B': do_broadcast = 1; break;
|
|
case '?': printf("\n");
|
|
case 'h':
|
|
usage();
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
// 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");
|
|
}
|
|
|
|
/* open the vibrator before dropping root */
|
|
FILE *vibrator = 0;
|
|
if (do_vibrate) {
|
|
vibrator = fopen("/sys/class/timed_output/vibrator/enable", "we");
|
|
if (vibrator) {
|
|
vibrate(vibrator, 150);
|
|
}
|
|
}
|
|
|
|
/* read /proc/cmdline before dropping root */
|
|
FILE *cmdline = fopen("/proc/cmdline", "re");
|
|
if (cmdline != NULL) {
|
|
fgets(cmdline_buf, sizeof(cmdline_buf), cmdline);
|
|
fclose(cmdline);
|
|
}
|
|
|
|
/* collect stack traces from Dalvik and native processes (needs root) */
|
|
dump_traces_path = dump_traces();
|
|
|
|
/* Get the tombstone fds here while we are running as root. */
|
|
get_tombstone_fds(tombstone_data);
|
|
|
|
/* ensure we will keep capabilities when we drop root */
|
|
if (prctl(PR_SET_KEEPCAPS, 1) < 0) {
|
|
ALOGE("prctl(PR_SET_KEEPCAPS) failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
/* switch to non-root user and group */
|
|
gid_t groups[] = { AID_LOG, AID_SDCARD_R, AID_SDCARD_RW,
|
|
AID_MOUNT, AID_INET, AID_NET_BW_STATS };
|
|
if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
|
|
ALOGE("Unable to setgroups, aborting: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
if (setgid(AID_SHELL) != 0) {
|
|
ALOGE("Unable to setgid, aborting: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
if (setuid(AID_SHELL) != 0) {
|
|
ALOGE("Unable to setuid, aborting: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
struct __user_cap_header_struct capheader;
|
|
struct __user_cap_data_struct capdata[2];
|
|
memset(&capheader, 0, sizeof(capheader));
|
|
memset(&capdata, 0, sizeof(capdata));
|
|
capheader.version = _LINUX_CAPABILITY_VERSION_3;
|
|
capheader.pid = 0;
|
|
|
|
capdata[CAP_TO_INDEX(CAP_SYSLOG)].permitted = CAP_TO_MASK(CAP_SYSLOG);
|
|
capdata[CAP_TO_INDEX(CAP_SYSLOG)].effective = CAP_TO_MASK(CAP_SYSLOG);
|
|
capdata[0].inheritable = 0;
|
|
capdata[1].inheritable = 0;
|
|
|
|
if (capset(&capheader, &capdata[0]) < 0) {
|
|
ALOGE("capset failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
/* redirect output if needed */
|
|
char path[PATH_MAX], tmp_path[PATH_MAX];
|
|
pid_t gzip_pid = -1;
|
|
|
|
if (!use_socket && use_outfile) {
|
|
strlcpy(path, use_outfile, sizeof(path));
|
|
if (do_add_date) {
|
|
char date[80];
|
|
time_t now = time(NULL);
|
|
strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now));
|
|
strlcat(path, date, sizeof(path));
|
|
}
|
|
if (do_fb) {
|
|
strlcpy(screenshot_path, path, sizeof(screenshot_path));
|
|
strlcat(screenshot_path, ".png", sizeof(screenshot_path));
|
|
}
|
|
strlcat(path, ".txt", sizeof(path));
|
|
strlcpy(tmp_path, path, sizeof(tmp_path));
|
|
strlcat(tmp_path, ".tmp", sizeof(tmp_path));
|
|
redirect_to_file(stdout, tmp_path);
|
|
}
|
|
|
|
dumpstate();
|
|
|
|
/* done */
|
|
if (vibrator) {
|
|
for (int i = 0; i < 3; i++) {
|
|
vibrate(vibrator, 75);
|
|
usleep((75 + 50) * 1000);
|
|
}
|
|
fclose(vibrator);
|
|
}
|
|
|
|
/* wait for gzip to finish, otherwise it might get killed when we exit */
|
|
if (gzip_pid > 0) {
|
|
fclose(stdout);
|
|
waitpid(gzip_pid, NULL, 0);
|
|
}
|
|
|
|
/* rename the (now complete) .tmp file to its final location */
|
|
if (use_outfile && rename(tmp_path, path)) {
|
|
fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno));
|
|
}
|
|
|
|
/* tell activity manager we're done */
|
|
if (do_broadcast && use_outfile && do_fb) {
|
|
run_command(NULL, 5, "/system/bin/am", "broadcast", "--user", "0",
|
|
"-a", "android.intent.action.BUGREPORT_FINISHED",
|
|
"--es", "android.intent.extra.BUGREPORT", path,
|
|
"--es", "android.intent.extra.SCREENSHOT", screenshot_path,
|
|
"--receiver-permission", "android.permission.DUMP", NULL);
|
|
}
|
|
|
|
ALOGI("done\n");
|
|
|
|
return 0;
|
|
}
|