/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <limits.h>
#include <fcntl.h>
#include <sys/time.h>
#include <sys/resource.h>
#include "private/android_filesystem_config.h"
#include "dumpstate.h"
static char* const gzip_args[] = { "gzip", "-6", 0 };
static int start_pattern[] = { 150, 0 };
static int end_pattern[] = { 75, 50, 75, 50, 75, 0 };
static struct tm now;
/* dumps the current system state to stdout */
static void dumpstate(int full) {
if (full) {
PRINT("========================================================");
PRINT("== dumpstate");
PRINT("========================================================");
PRINT("------ MEMORY INFO ------");
DUMP("/proc/meminfo");
PRINT("------ CPU INFO ------");
EXEC7("top", "-n", "1", "-d", "1", "-m", "30", "-t");
PRINT("------ PROCRANK ------");
EXEC_XBIN("procrank");
PRINT("------ VIRTUAL MEMORY STATS ------");
DUMP("/proc/vmstat");
PRINT("------ SLAB INFO ------");
DUMP("/proc/slabinfo");
PRINT("------ ZONEINFO ------");
DUMP("/proc/zoneinfo");
PRINT("------ SYSTEM LOG ------");
EXEC4("logcat", "-v", "time", "-d", "*:v");
PRINT("------ VM TRACES ------");
DUMP("/data/anr/traces.txt");
PRINT("------ EVENT LOG TAGS ------");
DUMP("/etc/event-log-tags");
PRINT("------ EVENT LOG ------");
EXEC6("logcat", "-b", "events", "-v", "time", "-d", "*:v");
PRINT("------ RADIO LOG ------");
EXEC6("logcat", "-b", "radio", "-v", "time", "-d", "*:v");
PRINT("------ NETWORK STATE ------");
PRINT("Interfaces:");
EXEC("netcfg");
PRINT("");
PRINT("Routes:");
DUMP("/proc/net/route");
PRINT("------ SYSTEM PROPERTIES ------");
print_properties();
PRINT("------ KERNEL LOG ------");
EXEC("dmesg");
PRINT("------ KERNEL WAKELOCKS ------");
DUMP("/proc/wakelocks");
PRINT("");
PRINT("------ PROCESSES ------");
EXEC("ps");
PRINT("------ PROCESSES AND THREADS ------");
EXEC2("ps", "-t", "-p");
PRINT("------ LIBRANK ------");
EXEC_XBIN("librank");
PRINT("------ BINDER FAILED TRANSACTION LOG ------");
DUMP("/proc/binder/failed_transaction_log");
PRINT("");
PRINT("------ BINDER TRANSACTION LOG ------");
DUMP("/proc/binder/transaction_log");
PRINT("");
PRINT("------ BINDER TRANSACTIONS ------");
DUMP("/proc/binder/transactions");
PRINT("");
PRINT("------ BINDER STATS ------");
DUMP("/proc/binder/stats");
PRINT("");
PRINT("------ BINDER PROCESS STATE: $i ------");
DUMP_FILES("/proc/binder/proc");
PRINT("------ FILESYSTEMS ------");
EXEC("df");
PRINT("------ PACKAGE SETTINGS ------");
DUMP("/data/system/packages.xml");
PRINT("------ PACKAGE UID ERRORS ------");
DUMP("/data/system/uiderrors.txt");
PRINT("------ LAST KERNEL LOG ------");
DUMP("/proc/last_kmsg");
}
PRINT("========================================================");
PRINT("== build.prop");
PRINT("========================================================");
/* the crash server parses key-value pairs between the VERSION INFO and
* END lines so we can aggregate crash reports based on this data.
*/
PRINT("------ VERSION INFO ------");
print_date("currenttime=", &now);
DUMP_PROMPT("kernel.version=", "/proc/version");
DUMP_PROMPT("kernel.cmdline=", "/proc/cmdline");
DUMP("/system/build.prop");
PROPERTY("gsm.version.ril-impl");
PROPERTY("gsm.version.baseband");
PROPERTY("gsm.imei");
PROPERTY("gsm.sim.operator.numeric");
PROPERTY("gsm.operator.alpha");
PRINT("------ END ------");
if (full) {
PRINT("========================================================");
PRINT("== dumpsys");
PRINT("========================================================");
/* 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... */
EXEC_TIMEOUT("dumpsys", 60);
}
}
/* used to check the file name passed via argv[0] */
static int check_command_name(const char* name, const char* test) {
int name_length, test_length;
if (!strcmp(name, test))
return 1;
name_length = strlen(name);
test_length = strlen(test);
if (name_length > test_length + 2) {
name += (name_length - test_length);
if (name[-1] != '/')
return 0;
if (!strcmp(name, test))
return 1;
}
return 0;
}
int main(int argc, char *argv[]) {
int dumpcrash = check_command_name(argv[0], "dumpcrash");
int bugreport = check_command_name(argv[0], "bugreport");
int add_date = 0;
char* outfile = 0;
int vibrate = 0;
int compress = 0;
int c, fd, vibrate_fd, fds[2];
char path[PATH_MAX];
pid_t pid;
gid_t groups[] = { AID_LOG, AID_SDCARD_RW };
/* set as high priority, and protect from OOM killer */
setpriority(PRIO_PROCESS, 0, -20);
protect_from_oom_killer();
get_time(&now);
if (bugreport) {
do {
c = getopt(argc, argv, "do:vz");
if (c == EOF)
break;
switch (c) {
case 'd':
add_date = 1;
break;
case 'o':
outfile = optarg;
break;
case 'v':
vibrate = 1;
break;
case 'z':
compress = 1;
break;
case '?':
fprintf(stderr, "%s: invalid option -%c\n",
argv[0], optopt);
exit(1);
}
} while (1);
}
/* open vibrator before switching user */
if (vibrate) {
vibrate_fd = open("/sys/class/timed_output/vibrator/enable", O_WRONLY);
if (vibrate_fd > 0)
fcntl(vibrate_fd, F_SETFD, FD_CLOEXEC);
} else
vibrate_fd = -1;
/* switch to non-root user and group */
setgroups(sizeof(groups)/sizeof(groups[0]), groups);
setuid(AID_SHELL);
/* make it safe to use both printf and STDOUT_FILENO */
setvbuf(stdout, 0, _IONBF, 0);
if (outfile) {
if (strlen(outfile) > sizeof(path) - 100)
exit(1);
strcpy(path, outfile);
if (add_date) {
char date[260];
strftime(date, sizeof(date),
"-%Y-%m-%d-%H-%M-%S",
&now);
strcat(path, date);
}
if (compress)
strcat(path, ".gz");
else
strcat(path, ".txt");
/* ensure that all directories in the path exist */
create_directories(path);
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (fd < 0)
return fd;
if (compress) {
pipe(fds);
/* redirect our stdout to the pipe */
dup2(fds[1], STDOUT_FILENO);
close(fds[1]);
if ((pid = fork()) < 0)
{
fprintf(stderr, "fork error\n");
exit(1);
}
if (pid) {
/* parent case */
/* close our copy of the input to gzip */
close(fds[0]);
/* close our copy of the output file */
close(fd);
} else {
/* child case */
/* redirect our input pipe to stdin */
dup2(fds[0], STDIN_FILENO);
close(fds[0]);
/* redirect stdout to the output file */
dup2(fd, STDOUT_FILENO);
close(fd);
/* run gzip to postprocess our output */
execv("/system/bin/gzip", gzip_args);
fprintf(stderr, "execv returned\n");
}
} else {
/* redirect stdout to the output file */
dup2(fd, STDOUT_FILENO);
close(fd);
}
}
/* else everything will print to stdout */
if (vibrate) {
vibrate_pattern(vibrate_fd, start_pattern);
}
dumpstate(!dumpcrash);
if (vibrate) {
vibrate_pattern(vibrate_fd, end_pattern);
close(vibrate_fd);
}
/* so gzip will terminate */
close(STDOUT_FILENO);
return 0;
}