1395 lines
45 KiB
C++
1395 lines
45 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 <poll.h>
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#include <signal.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string>
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#include <string.h>
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#include <sys/capability.h>
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#include <sys/inotify.h>
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#include <sys/stat.h>
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#include <sys/sysconf.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <sys/klog.h>
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#include <time.h>
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#include <unistd.h>
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#include <vector>
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#include <sys/prctl.h>
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#define LOG_TAG "dumpstate"
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#include <android-base/file.h>
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#include <cutils/debugger.h>
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#include <cutils/log.h>
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#include <cutils/properties.h>
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#include <cutils/sockets.h>
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#include <private/android_filesystem_config.h>
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#include <selinux/android.h>
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#include "dumpstate.h"
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static const int64_t NANOS_PER_SEC = 1000000000;
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/* list of native processes to include in the native dumps */
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// This matches the /proc/pid/exe link instead of /proc/pid/cmdline.
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static const char* native_processes_to_dump[] = {
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"/system/bin/audioserver",
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"/system/bin/cameraserver",
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"/system/bin/drmserver",
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"/system/bin/mediacodec", // media.codec
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"/system/bin/mediadrmserver",
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"/system/bin/mediaextractor", // media.extractor
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"/system/bin/mediaserver",
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"/system/bin/sdcard",
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"/system/bin/surfaceflinger",
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"/system/bin/vehicle_network_service",
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NULL,
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};
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DurationReporter::DurationReporter(const char *title) : DurationReporter(title, stdout) {}
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DurationReporter::DurationReporter(const char *title, FILE *out) {
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title_ = title;
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if (title) {
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started_ = DurationReporter::nanotime();
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}
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out_ = out;
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}
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DurationReporter::~DurationReporter() {
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if (title_) {
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uint64_t elapsed = DurationReporter::nanotime() - started_;
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// Use "Yoda grammar" to make it easier to grep|sort sections.
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if (out_) {
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fprintf(out_, "------ %.3fs was the duration of '%s' ------\n",
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(float) elapsed / NANOS_PER_SEC, title_);
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} else {
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MYLOGD("Duration of '%s': %.3fs\n", title_, (float) elapsed / NANOS_PER_SEC);
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}
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}
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}
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uint64_t DurationReporter::DurationReporter::nanotime() {
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return (uint64_t) ts.tv_sec * NANOS_PER_SEC + ts.tv_nsec;
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}
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void for_each_userid(void (*func)(int), const char *header) {
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ON_DRY_RUN_RETURN();
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DIR *d;
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struct dirent *de;
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if (header) printf("\n------ %s ------\n", header);
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func(0);
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if (!(d = opendir("/data/system/users"))) {
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printf("Failed to open /data/system/users (%s)\n", strerror(errno));
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return;
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}
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while ((de = readdir(d))) {
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int userid;
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if (de->d_type != DT_DIR || !(userid = atoi(de->d_name))) {
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continue;
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}
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func(userid);
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}
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closedir(d);
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}
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static void __for_each_pid(void (*helper)(int, const char *, void *), const char *header, void *arg) {
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DIR *d;
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struct dirent *de;
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if (!(d = opendir("/proc"))) {
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printf("Failed to open /proc (%s)\n", strerror(errno));
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return;
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}
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if (header) printf("\n------ %s ------\n", header);
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while ((de = readdir(d))) {
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int pid;
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int fd;
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char cmdpath[255];
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char cmdline[255];
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if (!(pid = atoi(de->d_name))) {
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continue;
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}
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memset(cmdline, 0, sizeof(cmdline));
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snprintf(cmdpath, sizeof(cmdpath), "/proc/%d/cmdline", pid);
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if ((fd = TEMP_FAILURE_RETRY(open(cmdpath, O_RDONLY | O_CLOEXEC))) >= 0) {
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TEMP_FAILURE_RETRY(read(fd, cmdline, sizeof(cmdline) - 2));
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close(fd);
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if (cmdline[0]) {
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helper(pid, cmdline, arg);
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continue;
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}
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}
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// if no cmdline, a kernel thread has comm
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snprintf(cmdpath, sizeof(cmdpath), "/proc/%d/comm", pid);
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if ((fd = TEMP_FAILURE_RETRY(open(cmdpath, O_RDONLY | O_CLOEXEC))) >= 0) {
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TEMP_FAILURE_RETRY(read(fd, cmdline + 1, sizeof(cmdline) - 4));
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close(fd);
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if (cmdline[1]) {
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cmdline[0] = '[';
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size_t len = strcspn(cmdline, "\f\b\r\n");
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cmdline[len] = ']';
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cmdline[len+1] = '\0';
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}
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}
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if (!cmdline[0]) {
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strcpy(cmdline, "N/A");
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}
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helper(pid, cmdline, arg);
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}
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closedir(d);
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}
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static void for_each_pid_helper(int pid, const char *cmdline, void *arg) {
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for_each_pid_func *func = (for_each_pid_func*) arg;
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func(pid, cmdline);
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}
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void for_each_pid(for_each_pid_func func, const char *header) {
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ON_DRY_RUN_RETURN();
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__for_each_pid(for_each_pid_helper, header, (void *)func);
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}
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static void for_each_tid_helper(int pid, const char *cmdline, void *arg) {
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DIR *d;
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struct dirent *de;
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char taskpath[255];
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for_each_tid_func *func = (for_each_tid_func *) arg;
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snprintf(taskpath, sizeof(taskpath), "/proc/%d/task", pid);
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if (!(d = opendir(taskpath))) {
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printf("Failed to open %s (%s)\n", taskpath, strerror(errno));
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return;
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}
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func(pid, pid, cmdline);
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while ((de = readdir(d))) {
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int tid;
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int fd;
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char commpath[255];
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char comm[255];
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if (!(tid = atoi(de->d_name))) {
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continue;
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}
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if (tid == pid)
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continue;
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snprintf(commpath, sizeof(commpath), "/proc/%d/comm", tid);
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memset(comm, 0, sizeof(comm));
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if ((fd = TEMP_FAILURE_RETRY(open(commpath, O_RDONLY | O_CLOEXEC))) < 0) {
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strcpy(comm, "N/A");
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} else {
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char *c;
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TEMP_FAILURE_RETRY(read(fd, comm, sizeof(comm) - 2));
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close(fd);
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c = strrchr(comm, '\n');
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if (c) {
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*c = '\0';
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}
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}
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func(pid, tid, comm);
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}
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closedir(d);
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}
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void for_each_tid(for_each_tid_func func, const char *header) {
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ON_DRY_RUN_RETURN();
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__for_each_pid(for_each_tid_helper, header, (void *) func);
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}
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void show_wchan(int pid, int tid, const char *name) {
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ON_DRY_RUN_RETURN();
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char path[255];
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char buffer[255];
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int fd, ret, save_errno;
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char name_buffer[255];
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memset(buffer, 0, sizeof(buffer));
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snprintf(path, sizeof(path), "/proc/%d/wchan", tid);
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if ((fd = TEMP_FAILURE_RETRY(open(path, O_RDONLY | O_CLOEXEC))) < 0) {
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printf("Failed to open '%s' (%s)\n", path, strerror(errno));
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return;
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}
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ret = TEMP_FAILURE_RETRY(read(fd, buffer, sizeof(buffer)));
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save_errno = errno;
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close(fd);
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if (ret < 0) {
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printf("Failed to read '%s' (%s)\n", path, strerror(save_errno));
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return;
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}
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snprintf(name_buffer, sizeof(name_buffer), "%*s%s",
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pid == tid ? 0 : 3, "", name);
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printf("%-7d %-32s %s\n", tid, name_buffer, buffer);
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return;
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}
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// print time in centiseconds
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static void snprcent(char *buffer, size_t len, size_t spc,
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unsigned long long time) {
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static long hz; // cache discovered hz
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if (hz <= 0) {
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hz = sysconf(_SC_CLK_TCK);
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if (hz <= 0) {
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hz = 1000;
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}
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}
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// convert to centiseconds
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time = (time * 100 + (hz / 2)) / hz;
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char str[16];
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snprintf(str, sizeof(str), " %llu.%02u",
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time / 100, (unsigned)(time % 100));
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size_t offset = strlen(buffer);
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snprintf(buffer + offset, (len > offset) ? len - offset : 0,
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"%*s", (spc > offset) ? (int)(spc - offset) : 0, str);
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}
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// print permille as a percent
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static void snprdec(char *buffer, size_t len, size_t spc, unsigned permille) {
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char str[16];
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snprintf(str, sizeof(str), " %u.%u%%", permille / 10, permille % 10);
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size_t offset = strlen(buffer);
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snprintf(buffer + offset, (len > offset) ? len - offset : 0,
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"%*s", (spc > offset) ? (int)(spc - offset) : 0, str);
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}
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void show_showtime(int pid, const char *name) {
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ON_DRY_RUN_RETURN();
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char path[255];
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char buffer[1023];
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int fd, ret, save_errno;
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memset(buffer, 0, sizeof(buffer));
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snprintf(path, sizeof(path), "/proc/%d/stat", pid);
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if ((fd = TEMP_FAILURE_RETRY(open(path, O_RDONLY | O_CLOEXEC))) < 0) {
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printf("Failed to open '%s' (%s)\n", path, strerror(errno));
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return;
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}
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ret = TEMP_FAILURE_RETRY(read(fd, buffer, sizeof(buffer)));
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save_errno = errno;
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close(fd);
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if (ret < 0) {
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printf("Failed to read '%s' (%s)\n", path, strerror(save_errno));
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return;
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}
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// field 14 is utime
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// field 15 is stime
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// field 42 is iotime
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unsigned long long utime = 0, stime = 0, iotime = 0;
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if (sscanf(buffer,
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"%*u %*s %*s %*d %*d %*d %*d %*d %*d %*d %*d "
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"%*d %*d %llu %llu %*d %*d %*d %*d %*d %*d "
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"%*d %*d %*d %*d %*d %*d %*d %*d %*d %*d "
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"%*d %*d %*d %*d %*d %*d %*d %*d %*d %llu ",
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&utime, &stime, &iotime) != 3) {
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return;
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}
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unsigned long long total = utime + stime;
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if (!total) {
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return;
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}
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unsigned permille = (iotime * 1000 + (total / 2)) / total;
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if (permille > 1000) {
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permille = 1000;
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}
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// try to beautify and stabilize columns at <80 characters
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snprintf(buffer, sizeof(buffer), "%-6d%s", pid, name);
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if ((name[0] != '[') || utime) {
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snprcent(buffer, sizeof(buffer), 57, utime);
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}
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snprcent(buffer, sizeof(buffer), 65, stime);
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if ((name[0] != '[') || iotime) {
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snprcent(buffer, sizeof(buffer), 73, iotime);
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}
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if (iotime) {
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snprdec(buffer, sizeof(buffer), 79, permille);
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}
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puts(buffer); // adds a trailing newline
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return;
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}
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void do_dmesg() {
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const char *title = "KERNEL LOG (dmesg)";
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DurationReporter duration_reporter(title);
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printf("------ %s ------\n", title);
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ON_DRY_RUN_RETURN();
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/* Get size of kernel buffer */
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int size = klogctl(KLOG_SIZE_BUFFER, NULL, 0);
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if (size <= 0) {
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printf("Unexpected klogctl return value: %d\n\n", size);
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return;
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}
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char *buf = (char *) malloc(size + 1);
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if (buf == NULL) {
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printf("memory allocation failed\n\n");
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return;
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}
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int retval = klogctl(KLOG_READ_ALL, buf, size);
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if (retval < 0) {
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printf("klogctl failure\n\n");
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free(buf);
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return;
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}
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buf[retval] = '\0';
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printf("%s\n\n", buf);
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free(buf);
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return;
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}
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void do_showmap(int pid, const char *name) {
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char title[255];
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char arg[255];
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snprintf(title, sizeof(title), "SHOW MAP %d (%s)", pid, name);
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snprintf(arg, sizeof(arg), "%d", pid);
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run_command(title, 10, SU_PATH, "root", "showmap", "-q", arg, NULL);
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}
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static int _dump_file_from_fd(const char *title, const char *path, int fd) {
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if (title) {
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printf("------ %s (%s", title, path);
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struct stat st;
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// Only show the modification time of non-device files.
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size_t path_len = strlen(path);
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if ((path_len < 6 || memcmp(path, "/proc/", 6)) &&
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(path_len < 5 || memcmp(path, "/sys/", 5)) &&
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(path_len < 3 || memcmp(path, "/d/", 3)) &&
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!fstat(fd, &st)) {
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char stamp[80];
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time_t mtime = st.st_mtime;
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strftime(stamp, sizeof(stamp), "%Y-%m-%d %H:%M:%S", localtime(&mtime));
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printf(": %s", stamp);
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}
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printf(") ------\n");
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}
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ON_DRY_RUN({ update_progress(WEIGHT_FILE); close(fd); return 0; });
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bool newline = false;
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fd_set read_set;
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struct timeval tm;
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while (1) {
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FD_ZERO(&read_set);
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FD_SET(fd, &read_set);
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/* Timeout if no data is read for 30 seconds. */
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tm.tv_sec = 30;
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tm.tv_usec = 0;
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uint64_t elapsed = DurationReporter::nanotime();
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int ret = TEMP_FAILURE_RETRY(select(fd + 1, &read_set, NULL, NULL, &tm));
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if (ret == -1) {
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printf("*** %s: select failed: %s\n", path, strerror(errno));
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newline = true;
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break;
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} else if (ret == 0) {
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elapsed = DurationReporter::nanotime() - elapsed;
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printf("*** %s: Timed out after %.3fs\n", path,
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(float) elapsed / NANOS_PER_SEC);
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newline = true;
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break;
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} else {
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char buffer[65536];
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ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer, sizeof(buffer)));
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if (bytes_read > 0) {
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fwrite(buffer, bytes_read, 1, stdout);
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newline = (buffer[bytes_read-1] == '\n');
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} else {
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if (bytes_read == -1) {
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printf("*** %s: Failed to read from fd: %s", path, strerror(errno));
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newline = true;
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}
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break;
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}
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}
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}
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update_progress(WEIGHT_FILE);
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close(fd);
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if (!newline) printf("\n");
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if (title) printf("\n");
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return 0;
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}
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|
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/* prints the contents of a file */
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int dump_file(const char *title, const char *path) {
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DurationReporter duration_reporter(title);
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int fd = TEMP_FAILURE_RETRY(open(path, O_RDONLY | O_NONBLOCK | O_CLOEXEC));
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if (fd < 0) {
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int err = errno;
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printf("*** %s: %s\n", path, strerror(err));
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if (title) printf("\n");
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return -1;
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}
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return _dump_file_from_fd(title, path, fd);
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}
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|
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int read_file_as_long(const char *path, long int *output) {
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int fd = TEMP_FAILURE_RETRY(open(path, O_RDONLY | O_NONBLOCK | O_CLOEXEC));
|
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if (fd < 0) {
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int err = errno;
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MYLOGE("Error opening file descriptor for %s: %s\n", path, strerror(err));
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return -1;
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}
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char buffer[50];
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ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer, sizeof(buffer)));
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if (bytes_read == -1) {
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MYLOGE("Error reading file %s: %s\n", path, strerror(errno));
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return -2;
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}
|
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if (bytes_read == 0) {
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MYLOGE("File %s is empty\n", path);
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return -3;
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}
|
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*output = atoi(buffer);
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return 0;
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}
|
|
|
|
/* calls skip to gate calling dump_from_fd recursively
|
|
* in the specified directory. dump_from_fd defaults to
|
|
* dump_file_from_fd above when set to NULL. skip defaults
|
|
* to false when set to NULL. dump_from_fd will always be
|
|
* called with title NULL.
|
|
*/
|
|
int dump_files(const char *title, const char *dir,
|
|
bool (*skip)(const char *path),
|
|
int (*dump_from_fd)(const char *title, const char *path, int fd)) {
|
|
DurationReporter duration_reporter(title);
|
|
DIR *dirp;
|
|
struct dirent *d;
|
|
char *newpath = NULL;
|
|
const char *slash = "/";
|
|
int fd, retval = 0;
|
|
|
|
if (title) {
|
|
printf("------ %s (%s) ------\n", title, dir);
|
|
}
|
|
ON_DRY_RUN_RETURN(0);
|
|
|
|
if (dir[strlen(dir) - 1] == '/') {
|
|
++slash;
|
|
}
|
|
dirp = opendir(dir);
|
|
if (dirp == NULL) {
|
|
retval = -errno;
|
|
MYLOGE("%s: %s\n", dir, strerror(errno));
|
|
return retval;
|
|
}
|
|
|
|
if (!dump_from_fd) {
|
|
dump_from_fd = dump_file_from_fd;
|
|
}
|
|
for (; ((d = readdir(dirp))); free(newpath), newpath = NULL) {
|
|
if ((d->d_name[0] == '.')
|
|
&& (((d->d_name[1] == '.') && (d->d_name[2] == '\0'))
|
|
|| (d->d_name[1] == '\0'))) {
|
|
continue;
|
|
}
|
|
asprintf(&newpath, "%s%s%s%s", dir, slash, d->d_name,
|
|
(d->d_type == DT_DIR) ? "/" : "");
|
|
if (!newpath) {
|
|
retval = -errno;
|
|
continue;
|
|
}
|
|
if (skip && (*skip)(newpath)) {
|
|
continue;
|
|
}
|
|
if (d->d_type == DT_DIR) {
|
|
int ret = dump_files(NULL, newpath, skip, dump_from_fd);
|
|
if (ret < 0) {
|
|
retval = ret;
|
|
}
|
|
continue;
|
|
}
|
|
fd = TEMP_FAILURE_RETRY(open(newpath, O_RDONLY | O_NONBLOCK | O_CLOEXEC));
|
|
if (fd < 0) {
|
|
retval = fd;
|
|
printf("*** %s: %s\n", newpath, strerror(errno));
|
|
continue;
|
|
}
|
|
(*dump_from_fd)(NULL, newpath, fd);
|
|
}
|
|
closedir(dirp);
|
|
if (title) {
|
|
printf("\n");
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
/* fd must have been opened with the flag O_NONBLOCK. With this flag set,
|
|
* it's possible to avoid issues where opening the file itself can get
|
|
* stuck.
|
|
*/
|
|
int dump_file_from_fd(const char *title, const char *path, int fd) {
|
|
int flags = fcntl(fd, F_GETFL);
|
|
if (flags == -1) {
|
|
printf("*** %s: failed to get flags on fd %d: %s\n", path, fd, strerror(errno));
|
|
close(fd);
|
|
return -1;
|
|
} else if (!(flags & O_NONBLOCK)) {
|
|
printf("*** %s: fd must have O_NONBLOCK set.\n", path);
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
return _dump_file_from_fd(title, path, fd);
|
|
}
|
|
|
|
bool waitpid_with_timeout(pid_t pid, int timeout_seconds, int* status) {
|
|
sigset_t child_mask, old_mask;
|
|
sigemptyset(&child_mask);
|
|
sigaddset(&child_mask, SIGCHLD);
|
|
|
|
if (sigprocmask(SIG_BLOCK, &child_mask, &old_mask) == -1) {
|
|
printf("*** sigprocmask failed: %s\n", strerror(errno));
|
|
return false;
|
|
}
|
|
|
|
struct timespec ts;
|
|
ts.tv_sec = timeout_seconds;
|
|
ts.tv_nsec = 0;
|
|
int ret = TEMP_FAILURE_RETRY(sigtimedwait(&child_mask, NULL, &ts));
|
|
int saved_errno = errno;
|
|
// Set the signals back the way they were.
|
|
if (sigprocmask(SIG_SETMASK, &old_mask, NULL) == -1) {
|
|
printf("*** sigprocmask failed: %s\n", strerror(errno));
|
|
if (ret == 0) {
|
|
return false;
|
|
}
|
|
}
|
|
if (ret == -1) {
|
|
errno = saved_errno;
|
|
if (errno == EAGAIN) {
|
|
errno = ETIMEDOUT;
|
|
} else {
|
|
printf("*** sigtimedwait failed: %s\n", strerror(errno));
|
|
}
|
|
return false;
|
|
}
|
|
|
|
pid_t child_pid = waitpid(pid, status, WNOHANG);
|
|
if (child_pid != pid) {
|
|
if (child_pid != -1) {
|
|
printf("*** Waiting for pid %d, got pid %d instead\n", pid, child_pid);
|
|
} else {
|
|
printf("*** waitpid failed: %s\n", strerror(errno));
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// TODO: refactor all those commands that convert args
|
|
void format_args(const char* command, const char *args[], std::string *string);
|
|
|
|
int run_command(const char *title, int timeout_seconds, const char *command, ...) {
|
|
DurationReporter duration_reporter(title);
|
|
fflush(stdout);
|
|
|
|
const char *args[1024] = {command};
|
|
size_t arg;
|
|
va_list ap;
|
|
va_start(ap, command);
|
|
if (title) printf("------ %s (%s", title, command);
|
|
bool null_terminated = false;
|
|
for (arg = 1; arg < sizeof(args) / sizeof(args[0]); ++arg) {
|
|
args[arg] = va_arg(ap, const char *);
|
|
if (args[arg] == nullptr) {
|
|
null_terminated = true;
|
|
break;
|
|
}
|
|
// TODO: null_terminated check is not really working; line below would crash dumpstate if
|
|
// nullptr is missing
|
|
if (title) printf(" %s", args[arg]);
|
|
}
|
|
if (title) printf(") ------\n");
|
|
fflush(stdout);
|
|
if (!null_terminated) {
|
|
// Fail now, otherwise execvp() call on run_command_always() might hang.
|
|
std::string cmd;
|
|
format_args(command, args, &cmd);
|
|
MYLOGE("skipping command %s because its args were not NULL-terminated", cmd.c_str());
|
|
return -1;
|
|
}
|
|
|
|
ON_DRY_RUN({ update_progress(timeout_seconds); va_end(ap); return 0; });
|
|
|
|
int status = run_command_always(title, DONT_DROP_ROOT, NORMAL_STDOUT, timeout_seconds, args);
|
|
va_end(ap);
|
|
return status;
|
|
}
|
|
|
|
int run_command_as_shell(const char *title, int timeout_seconds, const char *command, ...) {
|
|
DurationReporter duration_reporter(title);
|
|
fflush(stdout);
|
|
|
|
const char *args[1024] = {command};
|
|
size_t arg;
|
|
va_list ap;
|
|
va_start(ap, command);
|
|
if (title) printf("------ %s (%s", title, command);
|
|
bool null_terminated = false;
|
|
for (arg = 1; arg < sizeof(args) / sizeof(args[0]); ++arg) {
|
|
args[arg] = va_arg(ap, const char *);
|
|
if (args[arg] == nullptr) {
|
|
null_terminated = true;
|
|
break;
|
|
}
|
|
// TODO: null_terminated check is not really working; line below would crash dumpstate if
|
|
// nullptr is missing
|
|
if (title) printf(" %s", args[arg]);
|
|
}
|
|
if (title) printf(") ------\n");
|
|
fflush(stdout);
|
|
if (!null_terminated) {
|
|
// Fail now, otherwise execvp() call on run_command_always() might hang.
|
|
std::string cmd;
|
|
format_args(command, args, &cmd);
|
|
MYLOGE("skipping command %s because its args were not NULL-terminated", cmd.c_str());
|
|
return -1;
|
|
}
|
|
|
|
ON_DRY_RUN({ update_progress(timeout_seconds); va_end(ap); return 0; });
|
|
|
|
int status = run_command_always(title, DROP_ROOT, NORMAL_STDOUT, timeout_seconds, args);
|
|
va_end(ap);
|
|
return status;
|
|
}
|
|
|
|
/* forks a command and waits for it to finish */
|
|
int run_command_always(const char *title, RootMode root_mode, StdoutMode stdout_mode,
|
|
int timeout_seconds, const char *args[]) {
|
|
bool silent = (stdout_mode == REDIRECT_TO_STDERR);
|
|
// TODO: need to check if args is null-terminated, otherwise execvp will crash dumpstate
|
|
|
|
/* TODO: for now we're simplifying the progress calculation by using the timeout as the weight.
|
|
* It's a good approximation for most cases, except when calling dumpsys, where its weight
|
|
* should be much higher proportionally to its timeout. */
|
|
int weight = timeout_seconds;
|
|
|
|
const char *command = args[0];
|
|
uint64_t start = DurationReporter::nanotime();
|
|
pid_t pid = fork();
|
|
|
|
/* handle error case */
|
|
if (pid < 0) {
|
|
if (!silent) printf("*** fork: %s\n", strerror(errno));
|
|
MYLOGE("*** fork: %s\n", strerror(errno));
|
|
return pid;
|
|
}
|
|
|
|
/* handle child case */
|
|
if (pid == 0) {
|
|
if (root_mode == DROP_ROOT && !drop_root_user()) {
|
|
if (!silent) printf("*** fail todrop root before running %s: %s\n", command,
|
|
strerror(errno));
|
|
MYLOGE("*** could not drop root before running %s: %s\n", command, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if (silent) {
|
|
// Redirect stderr to stdout
|
|
dup2(STDERR_FILENO, STDOUT_FILENO);
|
|
}
|
|
|
|
/* make sure the child dies when dumpstate dies */
|
|
prctl(PR_SET_PDEATHSIG, SIGKILL);
|
|
|
|
/* just ignore SIGPIPE, will go down with parent's */
|
|
struct sigaction sigact;
|
|
memset(&sigact, 0, sizeof(sigact));
|
|
sigact.sa_handler = SIG_IGN;
|
|
sigaction(SIGPIPE, &sigact, NULL);
|
|
|
|
execvp(command, (char**) args);
|
|
// execvp's result will be handled after waitpid_with_timeout() below, but if it failed,
|
|
// it's safer to exit dumpstate.
|
|
MYLOGD("execvp on command '%s' failed (error: %s)", command, strerror(errno));
|
|
fflush(stdout);
|
|
// Must call _exit (instead of exit), otherwise it will corrupt the zip file.
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/* handle parent case */
|
|
int status;
|
|
bool ret = waitpid_with_timeout(pid, timeout_seconds, &status);
|
|
uint64_t elapsed = DurationReporter::nanotime() - start;
|
|
std::string cmd; // used to log command and its args
|
|
if (!ret) {
|
|
if (errno == ETIMEDOUT) {
|
|
format_args(command, args, &cmd);
|
|
if (!silent) printf("*** command '%s' timed out after %.3fs (killing pid %d)\n",
|
|
cmd.c_str(), (float) elapsed / NANOS_PER_SEC, pid);
|
|
MYLOGE("command '%s' timed out after %.3fs (killing pid %d)\n", cmd.c_str(),
|
|
(float) elapsed / NANOS_PER_SEC, pid);
|
|
} else {
|
|
format_args(command, args, &cmd);
|
|
if (!silent) printf("*** command '%s': Error after %.4fs (killing pid %d)\n",
|
|
cmd.c_str(), (float) elapsed / NANOS_PER_SEC, pid);
|
|
MYLOGE("command '%s': Error after %.4fs (killing pid %d)\n", cmd.c_str(),
|
|
(float) elapsed / NANOS_PER_SEC, pid);
|
|
}
|
|
kill(pid, SIGTERM);
|
|
if (!waitpid_with_timeout(pid, 5, NULL)) {
|
|
kill(pid, SIGKILL);
|
|
if (!waitpid_with_timeout(pid, 5, NULL)) {
|
|
if (!silent) printf("could not kill command '%s' (pid %d) even with SIGKILL.\n",
|
|
command, pid);
|
|
MYLOGE("could not kill command '%s' (pid %d) even with SIGKILL.\n", command, pid);
|
|
}
|
|
}
|
|
return -1;
|
|
} else if (status) {
|
|
format_args(command, args, &cmd);
|
|
if (!silent) printf("*** command '%s' failed: %s\n", cmd.c_str(), strerror(errno));
|
|
MYLOGE("command '%s' failed: %s\n", cmd.c_str(), strerror(errno));
|
|
return -2;
|
|
}
|
|
|
|
if (WIFSIGNALED(status)) {
|
|
if (!silent) printf("*** %s: Killed by signal %d\n", command, WTERMSIG(status));
|
|
MYLOGE("*** %s: Killed by signal %d\n", command, WTERMSIG(status));
|
|
} else if (WIFEXITED(status) && WEXITSTATUS(status) > 0) {
|
|
if (!silent) printf("*** %s: Exit code %d\n", command, WEXITSTATUS(status));
|
|
MYLOGE("*** %s: Exit code %d\n", command, WEXITSTATUS(status));
|
|
}
|
|
|
|
if (weight > 0) {
|
|
update_progress(weight);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
bool drop_root_user() {
|
|
if (getgid() == AID_SHELL && getuid() == AID_SHELL) {
|
|
MYLOGD("drop_root_user(): already running as Shell");
|
|
return true;
|
|
}
|
|
/* ensure we will keep capabilities when we drop root */
|
|
if (prctl(PR_SET_KEEPCAPS, 1) < 0) {
|
|
MYLOGE("prctl(PR_SET_KEEPCAPS) failed: %s\n", strerror(errno));
|
|
return false;
|
|
}
|
|
|
|
gid_t groups[] = { AID_LOG, AID_SDCARD_R, AID_SDCARD_RW,
|
|
AID_MOUNT, AID_INET, AID_NET_BW_STATS, AID_READPROC,
|
|
AID_BLUETOOTH };
|
|
if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
|
|
MYLOGE("Unable to setgroups, aborting: %s\n", strerror(errno));
|
|
return false;
|
|
}
|
|
if (setgid(AID_SHELL) != 0) {
|
|
MYLOGE("Unable to setgid, aborting: %s\n", strerror(errno));
|
|
return false;
|
|
}
|
|
if (setuid(AID_SHELL) != 0) {
|
|
MYLOGE("Unable to setuid, aborting: %s\n", strerror(errno));
|
|
return false;
|
|
}
|
|
|
|
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) {
|
|
MYLOGE("capset failed: %s\n", strerror(errno));
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void send_broadcast(const std::string& action, const std::vector<std::string>& args) {
|
|
if (args.size() > 1000) {
|
|
MYLOGE("send_broadcast: too many arguments (%d)\n", (int) args.size());
|
|
return;
|
|
}
|
|
const char *am_args[1024] = { "/system/bin/am", "broadcast", "--user", "0", "-a",
|
|
action.c_str() };
|
|
size_t am_index = 5; // Starts at the index of last initial value above.
|
|
for (const std::string& arg : args) {
|
|
am_args[++am_index] = arg.c_str();
|
|
}
|
|
// Always terminate with NULL.
|
|
am_args[am_index + 1] = NULL;
|
|
std::string args_string;
|
|
format_args(am_index + 1, am_args, &args_string);
|
|
MYLOGD("send_broadcast command: %s\n", args_string.c_str());
|
|
run_command_always(NULL, DROP_ROOT, REDIRECT_TO_STDERR, 20, am_args);
|
|
}
|
|
|
|
size_t num_props = 0;
|
|
static char* props[2000];
|
|
|
|
static void print_prop(const char *key, const char *name, void *user) {
|
|
(void) user;
|
|
if (num_props < sizeof(props) / sizeof(props[0])) {
|
|
char buf[PROPERTY_KEY_MAX + PROPERTY_VALUE_MAX + 10];
|
|
snprintf(buf, sizeof(buf), "[%s]: [%s]\n", key, name);
|
|
props[num_props++] = strdup(buf);
|
|
}
|
|
}
|
|
|
|
static int compare_prop(const void *a, const void *b) {
|
|
return strcmp(*(char * const *) a, *(char * const *) b);
|
|
}
|
|
|
|
/* prints all the system properties */
|
|
void print_properties() {
|
|
const char* title = "SYSTEM PROPERTIES";
|
|
DurationReporter duration_reporter(title);
|
|
printf("------ %s ------\n", title);
|
|
ON_DRY_RUN_RETURN();
|
|
size_t i;
|
|
num_props = 0;
|
|
property_list(print_prop, NULL);
|
|
qsort(&props, num_props, sizeof(props[0]), compare_prop);
|
|
|
|
for (i = 0; i < num_props; ++i) {
|
|
fputs(props[i], stdout);
|
|
free(props[i]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
int open_socket(const char *service) {
|
|
int s = android_get_control_socket(service);
|
|
if (s < 0) {
|
|
MYLOGE("android_get_control_socket(%s): %s\n", service, strerror(errno));
|
|
exit(1);
|
|
}
|
|
fcntl(s, F_SETFD, FD_CLOEXEC);
|
|
if (listen(s, 4) < 0) {
|
|
MYLOGE("listen(control socket): %s\n", strerror(errno));
|
|
exit(1);
|
|
}
|
|
|
|
struct sockaddr addr;
|
|
socklen_t alen = sizeof(addr);
|
|
int fd = accept(s, &addr, &alen);
|
|
if (fd < 0) {
|
|
MYLOGE("accept(control socket): %s\n", strerror(errno));
|
|
exit(1);
|
|
}
|
|
|
|
return fd;
|
|
}
|
|
|
|
/* redirect output to a service control socket */
|
|
void redirect_to_socket(FILE *redirect, const char *service) {
|
|
int fd = open_socket(service);
|
|
fflush(redirect);
|
|
dup2(fd, fileno(redirect));
|
|
close(fd);
|
|
}
|
|
|
|
// TODO: should call is_valid_output_file and/or be merged into it.
|
|
void create_parent_dirs(const char *path) {
|
|
char *chp = const_cast<char *> (path);
|
|
|
|
/* skip initial slash */
|
|
if (chp[0] == '/')
|
|
chp++;
|
|
|
|
/* create leading directories, if necessary */
|
|
struct stat dir_stat;
|
|
while (chp && chp[0]) {
|
|
chp = strchr(chp, '/');
|
|
if (chp) {
|
|
*chp = 0;
|
|
if (stat(path, &dir_stat) == -1 || !S_ISDIR(dir_stat.st_mode)) {
|
|
MYLOGI("Creating directory %s\n", path);
|
|
if (mkdir(path, 0770)) { /* drwxrwx--- */
|
|
MYLOGE("Unable to create directory %s: %s\n", path, strerror(errno));
|
|
} else if (chown(path, AID_SHELL, AID_SHELL)) {
|
|
MYLOGE("Unable to change ownership of dir %s: %s\n", path, strerror(errno));
|
|
}
|
|
}
|
|
*chp++ = '/';
|
|
}
|
|
}
|
|
}
|
|
|
|
/* redirect output to a file */
|
|
void redirect_to_file(FILE *redirect, char *path) {
|
|
create_parent_dirs(path);
|
|
|
|
int fd = TEMP_FAILURE_RETRY(open(path, O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC | O_NOFOLLOW,
|
|
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH));
|
|
if (fd < 0) {
|
|
MYLOGE("%s: %s\n", path, strerror(errno));
|
|
exit(1);
|
|
}
|
|
|
|
TEMP_FAILURE_RETRY(dup2(fd, fileno(redirect)));
|
|
close(fd);
|
|
}
|
|
|
|
static bool should_dump_native_traces(const char* path) {
|
|
for (const char** p = native_processes_to_dump; *p; p++) {
|
|
if (!strcmp(*p, path)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* dump Dalvik and native stack traces, return the trace file location (NULL if none) */
|
|
const char *dump_traces() {
|
|
DurationReporter duration_reporter("DUMP TRACES", NULL);
|
|
ON_DRY_RUN_RETURN(NULL);
|
|
const char* result = NULL;
|
|
|
|
char traces_path[PROPERTY_VALUE_MAX] = "";
|
|
property_get("dalvik.vm.stack-trace-file", traces_path, "");
|
|
if (!traces_path[0]) return NULL;
|
|
|
|
/* move the old traces.txt (if any) out of the way temporarily */
|
|
char anr_traces_path[PATH_MAX];
|
|
strlcpy(anr_traces_path, traces_path, sizeof(anr_traces_path));
|
|
strlcat(anr_traces_path, ".anr", sizeof(anr_traces_path));
|
|
if (rename(traces_path, anr_traces_path) && errno != ENOENT) {
|
|
MYLOGE("rename(%s, %s): %s\n", traces_path, anr_traces_path, strerror(errno));
|
|
return NULL; // Can't rename old traces.txt -- no permission? -- leave it alone instead
|
|
}
|
|
|
|
/* create a new, empty traces.txt file to receive stack dumps */
|
|
int fd = TEMP_FAILURE_RETRY(open(traces_path, O_CREAT | O_WRONLY | O_TRUNC | O_NOFOLLOW | O_CLOEXEC,
|
|
0666)); /* -rw-rw-rw- */
|
|
if (fd < 0) {
|
|
MYLOGE("%s: %s\n", traces_path, strerror(errno));
|
|
return NULL;
|
|
}
|
|
int chmod_ret = fchmod(fd, 0666);
|
|
if (chmod_ret < 0) {
|
|
MYLOGE("fchmod on %s failed: %s\n", traces_path, strerror(errno));
|
|
close(fd);
|
|
return NULL;
|
|
}
|
|
|
|
/* Variables below must be initialized before 'goto' statements */
|
|
int dalvik_found = 0;
|
|
int ifd, wfd = -1;
|
|
|
|
/* walk /proc and kill -QUIT all Dalvik processes */
|
|
DIR *proc = opendir("/proc");
|
|
if (proc == NULL) {
|
|
MYLOGE("/proc: %s\n", strerror(errno));
|
|
goto error_close_fd;
|
|
}
|
|
|
|
/* use inotify to find when processes are done dumping */
|
|
ifd = inotify_init();
|
|
if (ifd < 0) {
|
|
MYLOGE("inotify_init: %s\n", strerror(errno));
|
|
goto error_close_fd;
|
|
}
|
|
|
|
wfd = inotify_add_watch(ifd, traces_path, IN_CLOSE_WRITE);
|
|
if (wfd < 0) {
|
|
MYLOGE("inotify_add_watch(%s): %s\n", traces_path, strerror(errno));
|
|
goto error_close_ifd;
|
|
}
|
|
|
|
struct dirent *d;
|
|
while ((d = readdir(proc))) {
|
|
int pid = atoi(d->d_name);
|
|
if (pid <= 0) continue;
|
|
|
|
char path[PATH_MAX];
|
|
char data[PATH_MAX];
|
|
snprintf(path, sizeof(path), "/proc/%d/exe", pid);
|
|
ssize_t len = readlink(path, data, sizeof(data) - 1);
|
|
if (len <= 0) {
|
|
continue;
|
|
}
|
|
data[len] = '\0';
|
|
|
|
if (!strncmp(data, "/system/bin/app_process", strlen("/system/bin/app_process"))) {
|
|
/* skip zygote -- it won't dump its stack anyway */
|
|
snprintf(path, sizeof(path), "/proc/%d/cmdline", pid);
|
|
int cfd = TEMP_FAILURE_RETRY(open(path, O_RDONLY | O_CLOEXEC));
|
|
len = read(cfd, data, sizeof(data) - 1);
|
|
close(cfd);
|
|
if (len <= 0) {
|
|
continue;
|
|
}
|
|
data[len] = '\0';
|
|
if (!strncmp(data, "zygote", strlen("zygote"))) {
|
|
continue;
|
|
}
|
|
|
|
++dalvik_found;
|
|
uint64_t start = DurationReporter::nanotime();
|
|
if (kill(pid, SIGQUIT)) {
|
|
MYLOGE("kill(%d, SIGQUIT): %s\n", pid, strerror(errno));
|
|
continue;
|
|
}
|
|
|
|
/* wait for the writable-close notification from inotify */
|
|
struct pollfd pfd = { ifd, POLLIN, 0 };
|
|
int ret = poll(&pfd, 1, 5000); /* 5 sec timeout */
|
|
if (ret < 0) {
|
|
MYLOGE("poll: %s\n", strerror(errno));
|
|
} else if (ret == 0) {
|
|
MYLOGE("warning: timed out dumping pid %d\n", pid);
|
|
} else {
|
|
struct inotify_event ie;
|
|
read(ifd, &ie, sizeof(ie));
|
|
}
|
|
|
|
if (lseek(fd, 0, SEEK_END) < 0) {
|
|
MYLOGE("lseek: %s\n", strerror(errno));
|
|
} else {
|
|
dprintf(fd, "[dump dalvik stack %d: %.3fs elapsed]\n",
|
|
pid, (float)(DurationReporter::nanotime() - start) / NANOS_PER_SEC);
|
|
}
|
|
} else if (should_dump_native_traces(data)) {
|
|
/* dump native process if appropriate */
|
|
if (lseek(fd, 0, SEEK_END) < 0) {
|
|
MYLOGE("lseek: %s\n", strerror(errno));
|
|
} else {
|
|
static uint16_t timeout_failures = 0;
|
|
uint64_t start = DurationReporter::nanotime();
|
|
|
|
/* If 3 backtrace dumps fail in a row, consider debuggerd dead. */
|
|
if (timeout_failures == 3) {
|
|
dprintf(fd, "too many stack dump failures, skipping...\n");
|
|
} else if (dump_backtrace_to_file_timeout(pid, fd, 20) == -1) {
|
|
dprintf(fd, "dumping failed, likely due to a timeout\n");
|
|
timeout_failures++;
|
|
} else {
|
|
timeout_failures = 0;
|
|
}
|
|
dprintf(fd, "[dump native stack %d: %.3fs elapsed]\n",
|
|
pid, (float)(DurationReporter::nanotime() - start) / NANOS_PER_SEC);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (dalvik_found == 0) {
|
|
MYLOGE("Warning: no Dalvik processes found to dump stacks\n");
|
|
}
|
|
|
|
static char dump_traces_path[PATH_MAX];
|
|
strlcpy(dump_traces_path, traces_path, sizeof(dump_traces_path));
|
|
strlcat(dump_traces_path, ".bugreport", sizeof(dump_traces_path));
|
|
if (rename(traces_path, dump_traces_path)) {
|
|
MYLOGE("rename(%s, %s): %s\n", traces_path, dump_traces_path, strerror(errno));
|
|
goto error_close_ifd;
|
|
}
|
|
result = dump_traces_path;
|
|
|
|
/* replace the saved [ANR] traces.txt file */
|
|
rename(anr_traces_path, traces_path);
|
|
|
|
error_close_ifd:
|
|
close(ifd);
|
|
error_close_fd:
|
|
close(fd);
|
|
return result;
|
|
}
|
|
|
|
void dump_route_tables() {
|
|
DurationReporter duration_reporter("DUMP ROUTE TABLES");
|
|
ON_DRY_RUN_RETURN();
|
|
const char* const RT_TABLES_PATH = "/data/misc/net/rt_tables";
|
|
dump_file("RT_TABLES", RT_TABLES_PATH);
|
|
FILE* fp = fopen(RT_TABLES_PATH, "re");
|
|
if (!fp) {
|
|
printf("*** %s: %s\n", RT_TABLES_PATH, strerror(errno));
|
|
return;
|
|
}
|
|
char table[16];
|
|
// Each line has an integer (the table number), a space, and a string (the table name). We only
|
|
// need the table number. It's a 32-bit unsigned number, so max 10 chars. Skip the table name.
|
|
// Add a fixed max limit so this doesn't go awry.
|
|
for (int i = 0; i < 64 && fscanf(fp, " %10s %*s", table) == 1; ++i) {
|
|
run_command("ROUTE TABLE IPv4", 10, "ip", "-4", "route", "show", "table", table, NULL);
|
|
run_command("ROUTE TABLE IPv6", 10, "ip", "-6", "route", "show", "table", table, NULL);
|
|
}
|
|
fclose(fp);
|
|
}
|
|
|
|
/* overall progress */
|
|
int progress = 0;
|
|
int do_update_progress = 0; // Set by dumpstate.cpp
|
|
int weight_total = WEIGHT_TOTAL;
|
|
|
|
// TODO: make this function thread safe if sections are generated in parallel.
|
|
void update_progress(int delta) {
|
|
if (!do_update_progress) return;
|
|
|
|
progress += delta;
|
|
|
|
char key[PROPERTY_KEY_MAX];
|
|
char value[PROPERTY_VALUE_MAX];
|
|
|
|
// adjusts max on the fly
|
|
if (progress > weight_total) {
|
|
int new_total = weight_total * 1.2;
|
|
MYLOGD("Adjusting total weight from %d to %d\n", weight_total, new_total);
|
|
weight_total = new_total;
|
|
snprintf(key, sizeof(key), "dumpstate.%d.max", getpid());
|
|
snprintf(value, sizeof(value), "%d", weight_total);
|
|
int status = property_set(key, value);
|
|
if (status) {
|
|
MYLOGE("Could not update max weight by setting system property %s to %s: %d\n",
|
|
key, value, status);
|
|
}
|
|
}
|
|
|
|
snprintf(key, sizeof(key), "dumpstate.%d.progress", getpid());
|
|
snprintf(value, sizeof(value), "%d", progress);
|
|
|
|
if (progress % 100 == 0) {
|
|
// We don't want to spam logcat, so only log multiples of 100.
|
|
MYLOGD("Setting progress (%s): %s/%d\n", key, value, weight_total);
|
|
} else {
|
|
// stderr is ignored on normal invocations, but useful when calling /system/bin/dumpstate
|
|
// directly for debuggging.
|
|
fprintf(stderr, "Setting progress (%s): %s/%d\n", key, value, weight_total);
|
|
}
|
|
|
|
if (control_socket_fd >= 0) {
|
|
dprintf(control_socket_fd, "PROGRESS:%d/%d\n", progress, weight_total);
|
|
fsync(control_socket_fd);
|
|
}
|
|
|
|
int status = property_set(key, value);
|
|
if (status) {
|
|
MYLOGE("Could not update progress by setting system property %s to %s: %d\n",
|
|
key, value, status);
|
|
}
|
|
}
|
|
|
|
void take_screenshot(const std::string& path) {
|
|
const char *args[] = { "/system/bin/screencap", "-p", path.c_str(), NULL };
|
|
run_command_always(NULL, DONT_DROP_ROOT, REDIRECT_TO_STDERR, 10, args);
|
|
}
|
|
|
|
void vibrate(FILE* vibrator, int ms) {
|
|
fprintf(vibrator, "%d\n", ms);
|
|
fflush(vibrator);
|
|
}
|
|
|
|
bool is_dir(const char* pathname) {
|
|
struct stat info;
|
|
if (stat(pathname, &info) == -1) {
|
|
return false;
|
|
}
|
|
return S_ISDIR(info.st_mode);
|
|
}
|
|
|
|
time_t get_mtime(int fd, time_t default_mtime) {
|
|
struct stat info;
|
|
if (fstat(fd, &info) == -1) {
|
|
return default_mtime;
|
|
}
|
|
return info.st_mtime;
|
|
}
|
|
|
|
void dump_emmc_ecsd(const char *ext_csd_path) {
|
|
// List of interesting offsets
|
|
struct hex {
|
|
char str[2];
|
|
};
|
|
static const size_t EXT_CSD_REV = 192 * sizeof(hex);
|
|
static const size_t EXT_PRE_EOL_INFO = 267 * sizeof(hex);
|
|
static const size_t EXT_DEVICE_LIFE_TIME_EST_TYP_A = 268 * sizeof(hex);
|
|
static const size_t EXT_DEVICE_LIFE_TIME_EST_TYP_B = 269 * sizeof(hex);
|
|
|
|
std::string buffer;
|
|
if (!android::base::ReadFileToString(ext_csd_path, &buffer)) {
|
|
return;
|
|
}
|
|
|
|
printf("------ %s Extended CSD ------\n", ext_csd_path);
|
|
|
|
if (buffer.length() < (EXT_CSD_REV + sizeof(hex))) {
|
|
printf("*** %s: truncated content %zu\n\n", ext_csd_path, buffer.length());
|
|
return;
|
|
}
|
|
|
|
int ext_csd_rev = 0;
|
|
std::string sub = buffer.substr(EXT_CSD_REV, sizeof(hex));
|
|
if (sscanf(sub.c_str(), "%2x", &ext_csd_rev) != 1) {
|
|
printf("*** %s: EXT_CSD_REV parse error \"%s\"\n\n",
|
|
ext_csd_path, sub.c_str());
|
|
return;
|
|
}
|
|
|
|
static const char *ver_str[] = {
|
|
"4.0", "4.1", "4.2", "4.3", "Obsolete", "4.41", "4.5", "5.0"
|
|
};
|
|
printf("rev 1.%d (MMC %s)\n",
|
|
ext_csd_rev,
|
|
(ext_csd_rev < (int)(sizeof(ver_str) / sizeof(ver_str[0]))) ?
|
|
ver_str[ext_csd_rev] :
|
|
"Unknown");
|
|
if (ext_csd_rev < 7) {
|
|
printf("\n");
|
|
return;
|
|
}
|
|
|
|
if (buffer.length() < (EXT_PRE_EOL_INFO + sizeof(hex))) {
|
|
printf("*** %s: truncated content %zu\n\n", ext_csd_path, buffer.length());
|
|
return;
|
|
}
|
|
|
|
int ext_pre_eol_info = 0;
|
|
sub = buffer.substr(EXT_PRE_EOL_INFO, sizeof(hex));
|
|
if (sscanf(sub.c_str(), "%2x", &ext_pre_eol_info) != 1) {
|
|
printf("*** %s: PRE_EOL_INFO parse error \"%s\"\n\n",
|
|
ext_csd_path, sub.c_str());
|
|
return;
|
|
}
|
|
|
|
static const char *eol_str[] = {
|
|
"Undefined",
|
|
"Normal",
|
|
"Warning (consumed 80% of reserve)",
|
|
"Urgent (consumed 90% of reserve)"
|
|
};
|
|
printf("PRE_EOL_INFO %d (MMC %s)\n",
|
|
ext_pre_eol_info,
|
|
eol_str[(ext_pre_eol_info < (int)
|
|
(sizeof(eol_str) / sizeof(eol_str[0]))) ?
|
|
ext_pre_eol_info : 0]);
|
|
|
|
for (size_t lifetime = EXT_DEVICE_LIFE_TIME_EST_TYP_A;
|
|
lifetime <= EXT_DEVICE_LIFE_TIME_EST_TYP_B;
|
|
lifetime += sizeof(hex)) {
|
|
int ext_device_life_time_est;
|
|
static const char *est_str[] = {
|
|
"Undefined",
|
|
"0-10% of device lifetime used",
|
|
"10-20% of device lifetime used",
|
|
"20-30% of device lifetime used",
|
|
"30-40% of device lifetime used",
|
|
"40-50% of device lifetime used",
|
|
"50-60% of device lifetime used",
|
|
"60-70% of device lifetime used",
|
|
"70-80% of device lifetime used",
|
|
"80-90% of device lifetime used",
|
|
"90-100% of device lifetime used",
|
|
"Exceeded the maximum estimated device lifetime",
|
|
};
|
|
|
|
if (buffer.length() < (lifetime + sizeof(hex))) {
|
|
printf("*** %s: truncated content %zu\n", ext_csd_path, buffer.length());
|
|
break;
|
|
}
|
|
|
|
ext_device_life_time_est = 0;
|
|
sub = buffer.substr(lifetime, sizeof(hex));
|
|
if (sscanf(sub.c_str(), "%2x", &ext_device_life_time_est) != 1) {
|
|
printf("*** %s: DEVICE_LIFE_TIME_EST_TYP_%c parse error \"%s\"\n",
|
|
ext_csd_path,
|
|
(unsigned)((lifetime - EXT_DEVICE_LIFE_TIME_EST_TYP_A) /
|
|
sizeof(hex)) + 'A',
|
|
sub.c_str());
|
|
continue;
|
|
}
|
|
printf("DEVICE_LIFE_TIME_EST_TYP_%c %d (MMC %s)\n",
|
|
(unsigned)((lifetime - EXT_DEVICE_LIFE_TIME_EST_TYP_A) /
|
|
sizeof(hex)) + 'A',
|
|
ext_device_life_time_est,
|
|
est_str[(ext_device_life_time_est < (int)
|
|
(sizeof(est_str) / sizeof(est_str[0]))) ?
|
|
ext_device_life_time_est : 0]);
|
|
}
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
// TODO: refactor all those commands that convert args
|
|
void format_args(int argc, const char *argv[], std::string *args) {
|
|
LOG_ALWAYS_FATAL_IF(args == nullptr);
|
|
for (int i = 0; i < argc; i++) {
|
|
args->append(argv[i]);
|
|
if (i < argc -1) {
|
|
args->append(" ");
|
|
}
|
|
}
|
|
}
|
|
void format_args(const char* command, const char *args[], std::string *string) {
|
|
LOG_ALWAYS_FATAL_IF(args == nullptr || command == nullptr);
|
|
string->append(command);
|
|
if (args[0] == nullptr) return;
|
|
string->append(" ");
|
|
|
|
for (int arg = 1; arg <= 1000; ++arg) {
|
|
if (args[arg] == nullptr) return;
|
|
string->append(args[arg]);
|
|
if (args[arg+1] != nullptr) {
|
|
string->append(" ");
|
|
}
|
|
}
|
|
// TODO: not really working: if NULL is missing, it will crash dumpstate.
|
|
MYLOGE("internal error: missing NULL entry on %s", string->c_str());
|
|
}
|