utils.c revision 5ecd4beef8f10f91febf916414c65d3d0e1cf734
1f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* 2f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * Copyright (C) 2008 The Android Open Source Project 3f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * 4f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * Licensed under the Apache License, Version 2.0 (the "License"); 5f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * you may not use this file except in compliance with the License. 6f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * You may obtain a copy of the License at 7f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * 8f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * http://www.apache.org/licenses/LICENSE-2.0 9f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * 10f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * Unless required by applicable law or agreed to in writing, software 11f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * distributed under the License is distributed on an "AS IS" BASIS, 12f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * See the License for the specific language governing permissions and 14f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * limitations under the License. 15f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross */ 16f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 17f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <dirent.h> 18f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <errno.h> 19f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <fcntl.h> 20f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <limits.h> 21f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <poll.h> 22f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <signal.h> 23f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <stdarg.h> 24f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <stdio.h> 25f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <stdlib.h> 26f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <string.h> 27f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <sys/inotify.h> 28f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <sys/stat.h> 29f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <sys/time.h> 30f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <sys/wait.h> 31f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <sys/klog.h> 32f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <time.h> 33f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <unistd.h> 34e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau#include <sys/prctl.h> 35f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 36bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown#include <cutils/debugger.h> 37f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <cutils/properties.h> 38f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <cutils/sockets.h> 39f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <private/android_filesystem_config.h> 40f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 41957983787d7a753d34b582ae0165160f4ebf815cRobert Craig#include <selinux/android.h> 42957983787d7a753d34b582ae0165160f4ebf815cRobert Craig 43f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include "dumpstate.h" 44f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 45bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown/* list of native processes to include in the native dumps */ 46bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownstatic const char* native_processes_to_dump[] = { 471fc4f80fc38f782f128102795481924a97a2d3c5James Dong "/system/bin/drmserver", 48bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown "/system/bin/mediaserver", 49bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown "/system/bin/sdcard", 50bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown "/system/bin/surfaceflinger", 51bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown NULL, 52bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown}; 53bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 545ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlockvoid for_each_userid(void (*func)(int), const char *header) { 555ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock DIR *d; 565ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock struct dirent *de; 575ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock 585ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock if (header) printf("\n------ %s ------\n", header); 595ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock func(0); 605ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock 615ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock if (!(d = opendir("/data/system/users"))) { 625ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock printf("Failed to open /data/system/users (%s)\n", strerror(errno)); 635ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock return; 645ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock } 655ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock 665ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock while ((de = readdir(d))) { 675ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock int userid; 685ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock if (de->d_type != DT_DIR || !(userid = atoi(de->d_name))) { 695ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock continue; 705ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock } 715ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock func(userid); 725ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock } 735ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock 745ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock closedir(d); 755ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock} 765ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock 770c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossstatic void __for_each_pid(void (*helper)(int, const char *, void *), const char *header, void *arg) { 78f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross DIR *d; 79f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct dirent *de; 80f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 81f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!(d = opendir("/proc"))) { 82f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Failed to open /proc (%s)\n", strerror(errno)); 83f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 84f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 85f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 86f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("\n------ %s ------\n", header); 87f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross while ((de = readdir(d))) { 88f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int pid; 89f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd; 90f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char cmdpath[255]; 91f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char cmdline[255]; 92f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 93f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!(pid = atoi(de->d_name))) { 94f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross continue; 95f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 96f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 97f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross sprintf(cmdpath,"/proc/%d/cmdline", pid); 98f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross memset(cmdline, 0, sizeof(cmdline)); 99f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if ((fd = open(cmdpath, O_RDONLY)) < 0) { 100f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strcpy(cmdline, "N/A"); 101f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } else { 1020c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross read(fd, cmdline, sizeof(cmdline) - 1); 103f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 104f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 1050c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross helper(pid, cmdline, arg); 106f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 107f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 108f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross closedir(d); 109f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 110f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 1110c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossstatic void for_each_pid_helper(int pid, const char *cmdline, void *arg) { 1120c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross for_each_pid_func *func = arg; 1130c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross func(pid, cmdline); 1140c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross} 1150c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1160c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossvoid for_each_pid(for_each_pid_func func, const char *header) { 1170c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross __for_each_pid(for_each_pid_helper, header, func); 1180c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross} 1190c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1200c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossstatic void for_each_tid_helper(int pid, const char *cmdline, void *arg) { 1210c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross DIR *d; 1220c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross struct dirent *de; 1230c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross char taskpath[255]; 1240c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross for_each_tid_func *func = arg; 1250c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1260c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross sprintf(taskpath, "/proc/%d/task", pid); 1270c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1280c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross if (!(d = opendir(taskpath))) { 1290c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross printf("Failed to open %s (%s)\n", taskpath, strerror(errno)); 1300c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross return; 1310c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } 1320c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1330c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross func(pid, pid, cmdline); 1340c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1350c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross while ((de = readdir(d))) { 1360c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross int tid; 1370c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross int fd; 1380c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross char commpath[255]; 1390c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross char comm[255]; 1400c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1410c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross if (!(tid = atoi(de->d_name))) { 1420c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross continue; 1430c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } 1440c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1450c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross if (tid == pid) 1460c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross continue; 1470c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1480c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross sprintf(commpath,"/proc/%d/comm", tid); 1491493a3974a725d6873f317b774be333ca035a64cColin Cross memset(comm, 0, sizeof(comm)); 1500c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross if ((fd = open(commpath, O_RDONLY)) < 0) { 1510c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross strcpy(comm, "N/A"); 1520c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } else { 1530c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross char *c; 1540c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross read(fd, comm, sizeof(comm) - 1); 1550c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross close(fd); 1560c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1570c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross c = strrchr(comm, '\n'); 1580c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross if (c) { 1590c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross *c = '\0'; 1600c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } 1610c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } 1620c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross func(pid, tid, comm); 1630c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } 1640c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1650c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross closedir(d); 1660c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross} 1670c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1680c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossvoid for_each_tid(for_each_tid_func func, const char *header) { 1690c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross __for_each_pid(for_each_tid_helper, header, func); 1700c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross} 1710c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1720c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossvoid show_wchan(int pid, int tid, const char *name) { 173f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char path[255]; 174f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char buffer[255]; 175f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd; 1760c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross char name_buffer[255]; 177f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 178f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross memset(buffer, 0, sizeof(buffer)); 179f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 1800c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross sprintf(path, "/proc/%d/wchan", tid); 181f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if ((fd = open(path, O_RDONLY)) < 0) { 182f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Failed to open '%s' (%s)\n", path, strerror(errno)); 183f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 184f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 185f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 186f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (read(fd, buffer, sizeof(buffer)) < 0) { 187f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Failed to read '%s' (%s)\n", path, strerror(errno)); 188f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross goto out_close; 189f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 190f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 1910c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross snprintf(name_buffer, sizeof(name_buffer), "%*s%s", 1920c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross pid == tid ? 0 : 3, "", name); 1930c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1940c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross printf("%-7d %-32s %s\n", tid, name_buffer, buffer); 195f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 196f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossout_close: 197f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 198f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 199f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 200f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 2015ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlockvoid do_dump_settings(int userid) { 2025ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock char title[255]; 2035ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock char dbpath[255]; 2045ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock char sql[255]; 2055ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock sprintf(title, "SYSTEM SETTINGS (user %d)", userid); 2065ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock if (userid == 0) { 2075ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock strcpy(dbpath, "/data/data/com.android.providers.settings/databases/settings.db"); 2085ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock strcpy(sql, "pragma user_version; select * from system; select * from secure; select * from global;"); 2095ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock } else { 2105ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock sprintf(dbpath, "/data/system/users/%d/settings.db", userid); 2115ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock strcpy(sql, "pragma user_version; select * from system; select * from secure;"); 2125ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock } 2135ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock run_command(title, 20, SU_PATH, "root", "sqlite3", dbpath, sql, NULL); 2145ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock return; 2155ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock} 2165ecd4beef8f10f91febf916414c65d3d0e1cf734John Spurlock 217f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid do_dmesg() { 218f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("------ KERNEL LOG (dmesg) ------\n"); 2195f87b31d8076dff08b2363961b07fc052364fe95Elliott Hughes /* Get size of kernel buffer */ 2205f87b31d8076dff08b2363961b07fc052364fe95Elliott Hughes int size = klogctl(KLOG_SIZE_BUFFER, NULL, 0); 221f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (size <= 0) { 222f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Unexpected klogctl return value: %d\n\n", size); 223f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 224f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 225f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char *buf = (char *) malloc(size + 1); 226f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (buf == NULL) { 227f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("memory allocation failed\n\n"); 228f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 229f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 230f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int retval = klogctl(KLOG_READ_ALL, buf, size); 231f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (retval < 0) { 232f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("klogctl failure\n\n"); 233f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross free(buf); 234f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 235f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 236f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross buf[retval] = '\0'; 237f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("%s\n\n", buf); 238f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross free(buf); 239f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 240f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 241f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 242f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid do_showmap(int pid, const char *name) { 243f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char title[255]; 244f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char arg[255]; 245f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 246f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross sprintf(title, "SHOW MAP %d (%s)", pid, name); 247f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross sprintf(arg, "%d", pid); 248f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross run_command(title, 10, SU_PATH, "root", "showmap", arg, NULL); 249f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 250f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 251f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* prints the contents of a file */ 252f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossint dump_file(const char *title, const char* path) { 253f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char buffer[32768]; 254f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd = open(path, O_RDONLY); 255f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 256f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int err = errno; 257f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("------ %s (%s) ------\n", title, path); 258f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: %s\n", path, strerror(err)); 259f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("\n"); 260f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return -1; 261f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 262f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 263f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("------ %s (%s", title, path); 264f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 265f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) { 266f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct stat st; 267f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (memcmp(path, "/proc/", 6) && memcmp(path, "/sys/", 5) && !fstat(fd, &st)) { 268f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char stamp[80]; 269f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross time_t mtime = st.st_mtime; 270f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strftime(stamp, sizeof(stamp), "%Y-%m-%d %H:%M:%S", localtime(&mtime)); 271f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf(": %s", stamp); 272f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 273f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf(") ------\n"); 274f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 275f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 276f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int newline = 0; 277f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (;;) { 278f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int ret = read(fd, buffer, sizeof(buffer)); 279f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (ret > 0) { 280f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross newline = (buffer[ret - 1] == '\n'); 281f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross ret = fwrite(buffer, ret, 1, stdout); 282f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 283f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (ret <= 0) break; 284f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 285f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 286f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 287f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!newline) printf("\n"); 288f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("\n"); 289f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return 0; 290f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 291f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 292f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* forks a command and waits for it to finish */ 293f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossint run_command(const char *title, int timeout_seconds, const char *command, ...) { 294f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 295f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross clock_t start = clock(); 296f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross pid_t pid = fork(); 297f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 298f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* handle error case */ 299f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pid < 0) { 300f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** fork: %s\n", strerror(errno)); 301f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return pid; 302f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 303f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 304f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* handle child case */ 305f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pid == 0) { 306f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross const char *args[1024] = {command}; 307f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross size_t arg; 308f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 309e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau /* make sure the child dies when dumpstate dies */ 310e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau prctl(PR_SET_PDEATHSIG, SIGKILL); 311e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau 312f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross va_list ap; 313f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross va_start(ap, command); 314f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("------ %s (%s", title, command); 315f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (arg = 1; arg < sizeof(args) / sizeof(args[0]); ++arg) { 316f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross args[arg] = va_arg(ap, const char *); 317f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (args[arg] == NULL) break; 318f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf(" %s", args[arg]); 319f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 320f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf(") ------\n"); 321f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 322f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 323f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross execvp(command, (char**) args); 324f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** exec(%s): %s\n", command, strerror(errno)); 325f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 326f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross _exit(-1); 327f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 328f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 329f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* handle parent case */ 330f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (;;) { 331f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int status; 332f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross pid_t p = waitpid(pid, &status, WNOHANG); 333f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross float elapsed = (float) (clock() - start) / CLOCKS_PER_SEC; 334f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (p == pid) { 335f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (WIFSIGNALED(status)) { 336f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: Killed by signal %d\n", command, WTERMSIG(status)); 337f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } else if (WIFEXITED(status) && WEXITSTATUS(status) > 0) { 338f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: Exit code %d\n", command, WEXITSTATUS(status)); 339f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 340f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("[%s: %.1fs elapsed]\n\n", command, elapsed); 341f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return status; 342f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 343f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 344f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (timeout_seconds && elapsed > timeout_seconds) { 345f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: Timed out after %.1fs (killing pid %d)\n", command, elapsed, pid); 346f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross kill(pid, SIGTERM); 347f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return -1; 348f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 349f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 350f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross usleep(100000); // poll every 0.1 sec 351f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 352f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 353f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 354f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crosssize_t num_props = 0; 355f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossstatic char* props[2000]; 356f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 357f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossstatic void print_prop(const char *key, const char *name, void *user) { 358f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross (void) user; 359f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (num_props < sizeof(props) / sizeof(props[0])) { 360f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char buf[PROPERTY_KEY_MAX + PROPERTY_VALUE_MAX + 10]; 361f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross snprintf(buf, sizeof(buf), "[%s]: [%s]\n", key, name); 362f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross props[num_props++] = strdup(buf); 363f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 364f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 365f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 366f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossstatic int compare_prop(const void *a, const void *b) { 367f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return strcmp(*(char * const *) a, *(char * const *) b); 368f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 369f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 370f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* prints all the system properties */ 371f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid print_properties() { 372f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross size_t i; 373f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross num_props = 0; 374f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross property_list(print_prop, NULL); 375f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross qsort(&props, num_props, sizeof(props[0]), compare_prop); 376f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 377f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("------ SYSTEM PROPERTIES ------\n"); 378f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (i = 0; i < num_props; ++i) { 379f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fputs(props[i], stdout); 380f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross free(props[i]); 381f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 382f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("\n"); 383f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 384f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 385f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* redirect output to a service control socket */ 386f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid redirect_to_socket(FILE *redirect, const char *service) { 387f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int s = android_get_control_socket(service); 388f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (s < 0) { 389f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "android_get_control_socket(%s): %s\n", service, strerror(errno)); 390f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 391f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 392f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (listen(s, 4) < 0) { 393f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "listen(control socket): %s\n", strerror(errno)); 394f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 395f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 396f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 397f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct sockaddr addr; 398f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross socklen_t alen = sizeof(addr); 399f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd = accept(s, &addr, &alen); 400f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 401f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "accept(control socket): %s\n", strerror(errno)); 402f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 403f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 404f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 405f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(redirect); 406f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fd, fileno(redirect)); 407f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 408f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 409f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 410f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* redirect output to a file, optionally gzipping; returns gzip pid (or -1) */ 411f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crosspid_t redirect_to_file(FILE *redirect, char *path, int gzip_level) { 412f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char *chp = path; 413f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 414f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* skip initial slash */ 415f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (chp[0] == '/') 416f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross chp++; 417f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 418f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* create leading directories, if necessary */ 419f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross while (chp && chp[0]) { 420f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross chp = strchr(chp, '/'); 421f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (chp) { 422f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross *chp = 0; 42327f9e6d849fce956c9b8f1ad5c3d9a954501a76bJeff Sharkey mkdir(path, 0770); /* drwxrwx--- */ 424f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross *chp++ = '/'; 425f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 426f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 427f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 428f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); 429f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 430f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "%s: %s\n", path, strerror(errno)); 431f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 432f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 433f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 434f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross pid_t gzip_pid = -1; 435f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (gzip_level > 0) { 436f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fds[2]; 437f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pipe(fds)) { 438f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "pipe: %s\n", strerror(errno)); 439f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 440f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 441f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 442f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(redirect); 443f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 444f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 445f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross gzip_pid = fork(); 446f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (gzip_pid < 0) { 447f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "fork: %s\n", strerror(errno)); 448f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 449f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 450f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 451f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (gzip_pid == 0) { 452f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fds[0], STDIN_FILENO); 453f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fd, STDOUT_FILENO); 454f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 455f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 456f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fds[0]); 457f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fds[1]); 458f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 459f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char level[10]; 460f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross snprintf(level, sizeof(level), "-%d", gzip_level); 461f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross execlp("gzip", "gzip", level, NULL); 462f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "exec(gzip): %s\n", strerror(errno)); 463f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross _exit(-1); 464f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 465f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 466f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 467f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fds[0]); 468f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fd = fds[1]; 469f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 470f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 471f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fd, fileno(redirect)); 472f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 473f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return gzip_pid; 474f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 475f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 476bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownstatic bool should_dump_native_traces(const char* path) { 477bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown for (const char** p = native_processes_to_dump; *p; p++) { 478bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (!strcmp(*p, path)) { 479bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown return true; 480bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 481bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 482bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown return false; 483bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown} 484bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 485bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown/* dump Dalvik and native stack traces, return the trace file location (NULL if none) */ 486bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownconst char *dump_traces() { 487bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown const char* result = NULL; 488bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 489f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char traces_path[PROPERTY_VALUE_MAX] = ""; 490f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross property_get("dalvik.vm.stack-trace-file", traces_path, ""); 491f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!traces_path[0]) return NULL; 492f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 493f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* move the old traces.txt (if any) out of the way temporarily */ 494f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char anr_traces_path[PATH_MAX]; 495f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcpy(anr_traces_path, traces_path, sizeof(anr_traces_path)); 496f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcat(anr_traces_path, ".anr", sizeof(anr_traces_path)); 497f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (rename(traces_path, anr_traces_path) && errno != ENOENT) { 498f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "rename(%s, %s): %s\n", traces_path, anr_traces_path, strerror(errno)); 499f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return NULL; // Can't rename old traces.txt -- no permission? -- leave it alone instead 500f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 501f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 502f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* make the directory if necessary */ 503f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char anr_traces_dir[PATH_MAX]; 504f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcpy(anr_traces_dir, traces_path, sizeof(anr_traces_dir)); 505f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char *slash = strrchr(anr_traces_dir, '/'); 506f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (slash != NULL) { 507f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross *slash = '\0'; 508f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!mkdir(anr_traces_dir, 0775)) { 509f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross chown(anr_traces_dir, AID_SYSTEM, AID_SYSTEM); 510c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich chmod(anr_traces_dir, 0775); 511957983787d7a753d34b582ae0165160f4ebf815cRobert Craig if (selinux_android_restorecon(anr_traces_dir) == -1) { 512957983787d7a753d34b582ae0165160f4ebf815cRobert Craig fprintf(stderr, "restorecon failed for %s: %s\n", anr_traces_dir, strerror(errno)); 513957983787d7a753d34b582ae0165160f4ebf815cRobert Craig } 514f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } else if (errno != EEXIST) { 515f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "mkdir(%s): %s\n", anr_traces_dir, strerror(errno)); 516f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return NULL; 517f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 518f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 519f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 520f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* create a new, empty traces.txt file to receive stack dumps */ 521d51820e8dea4f5bd9d06ff22335bead7409864b2Nick Kralevich int fd = open(traces_path, O_CREAT | O_WRONLY | O_TRUNC | O_NOFOLLOW, 0666); /* -rw-rw-rw- */ 522f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 523f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "%s: %s\n", traces_path, strerror(errno)); 524f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return NULL; 525f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 526c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich int chmod_ret = fchmod(fd, 0666); 527c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich if (chmod_ret < 0) { 528c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich fprintf(stderr, "fchmod on %s failed: %s\n", traces_path, strerror(errno)); 529c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich close(fd); 530c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich return NULL; 531c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich } 532f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 533f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* walk /proc and kill -QUIT all Dalvik processes */ 534f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross DIR *proc = opendir("/proc"); 535f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (proc == NULL) { 536f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "/proc: %s\n", strerror(errno)); 537bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_fd; 538f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 539f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 540f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* use inotify to find when processes are done dumping */ 541f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int ifd = inotify_init(); 542f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (ifd < 0) { 543f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "inotify_init: %s\n", strerror(errno)); 544bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_fd; 545f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 546f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 547f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int wfd = inotify_add_watch(ifd, traces_path, IN_CLOSE_WRITE); 548f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (wfd < 0) { 549f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "inotify_add_watch(%s): %s\n", traces_path, strerror(errno)); 550bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_ifd; 551f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 552f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 553f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct dirent *d; 554f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int dalvik_found = 0; 555f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross while ((d = readdir(proc))) { 556f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int pid = atoi(d->d_name); 557f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pid <= 0) continue; 558f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 559bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown char path[PATH_MAX]; 560bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown char data[PATH_MAX]; 561f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross snprintf(path, sizeof(path), "/proc/%d/exe", pid); 562bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown ssize_t len = readlink(path, data, sizeof(data) - 1); 563bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (len <= 0) { 564f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross continue; 565f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 566bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown data[len] = '\0'; 567f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 568bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (!strcmp(data, "/system/bin/app_process")) { 569bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown /* skip zygote -- it won't dump its stack anyway */ 570bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); 571bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown int fd = open(path, O_RDONLY); 572bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown len = read(fd, data, sizeof(data) - 1); 573bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown close(fd); 574bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (len <= 0) { 575bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown continue; 576bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 577bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown data[len] = '\0'; 578bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (!strcmp(data, "zygote")) { 579bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown continue; 580bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 581bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 582bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown ++dalvik_found; 583bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (kill(pid, SIGQUIT)) { 584bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "kill(%d, SIGQUIT): %s\n", pid, strerror(errno)); 585bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown continue; 586bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 587bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 588bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown /* wait for the writable-close notification from inotify */ 589bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown struct pollfd pfd = { ifd, POLLIN, 0 }; 590bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown int ret = poll(&pfd, 1, 200); /* 200 msec timeout */ 591bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (ret < 0) { 592bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "poll: %s\n", strerror(errno)); 593bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else if (ret == 0) { 594bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "warning: timed out dumping pid %d\n", pid); 595bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else { 596bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown struct inotify_event ie; 597bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown read(ifd, &ie, sizeof(ie)); 598bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 599bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else if (should_dump_native_traces(data)) { 600bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown /* dump native process if appropriate */ 601bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (lseek(fd, 0, SEEK_END) < 0) { 602bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "lseek: %s\n", strerror(errno)); 603bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else { 604bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown dump_backtrace_to_file(pid, fd); 605bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 606f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 607f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 608f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 609f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (dalvik_found == 0) { 610f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "Warning: no Dalvik processes found to dump stacks\n"); 611f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 612f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 613f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross static char dump_traces_path[PATH_MAX]; 614f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcpy(dump_traces_path, traces_path, sizeof(dump_traces_path)); 615f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcat(dump_traces_path, ".bugreport", sizeof(dump_traces_path)); 616f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (rename(traces_path, dump_traces_path)) { 617f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "rename(%s, %s): %s\n", traces_path, dump_traces_path, strerror(errno)); 618bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_ifd; 619f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 620bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown result = dump_traces_path; 621f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 622f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* replace the saved [ANR] traces.txt file */ 623f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross rename(anr_traces_path, traces_path); 624bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 625bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownerror_close_ifd: 626bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown close(ifd); 627bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownerror_close_fd: 628bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown close(fd); 629bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown return result; 630f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 631f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 632f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid play_sound(const char* path) { 633f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross run_command(NULL, 5, "/system/bin/stagefright", "-o", "-a", path, NULL); 634f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 635