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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include <errno.h>
     18 #include <fcntl.h>
     19 #include <limits.h>
     20 #include <stdio.h>
     21 #include <stdlib.h>
     22 #include <string.h>
     23 #include <sys/resource.h>
     24 #include <sys/stat.h>
     25 #include <sys/time.h>
     26 #include <sys/wait.h>
     27 #include <unistd.h>
     28 #include <sys/capability.h>
     29 #include <linux/prctl.h>
     30 
     31 #include <cutils/properties.h>
     32 
     33 #include "private/android_filesystem_config.h"
     34 
     35 #define LOG_TAG "dumpstate"
     36 #include <utils/Log.h>
     37 
     38 #include "dumpstate.h"
     39 
     40 /* read before root is shed */
     41 static char cmdline_buf[16384] = "(unknown)";
     42 static const char *dump_traces_path = NULL;
     43 
     44 static char screenshot_path[PATH_MAX] = "";
     45 
     46 /* dumps the current system state to stdout */
     47 static void dumpstate() {
     48     time_t now = time(NULL);
     49     char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX];
     50     char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX];
     51     char network[PROPERTY_VALUE_MAX], date[80];
     52     char build_type[PROPERTY_VALUE_MAX];
     53 
     54     property_get("ro.build.display.id", build, "(unknown)");
     55     property_get("ro.build.fingerprint", fingerprint, "(unknown)");
     56     property_get("ro.build.type", build_type, "(unknown)");
     57     property_get("ro.baseband", radio, "(unknown)");
     58     property_get("ro.bootloader", bootloader, "(unknown)");
     59     property_get("gsm.operator.alpha", network, "(unknown)");
     60     strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now));
     61 
     62     printf("========================================================\n");
     63     printf("== dumpstate: %s\n", date);
     64     printf("========================================================\n");
     65 
     66     printf("\n");
     67     printf("Build: %s\n", build);
     68     printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */
     69     printf("Bootloader: %s\n", bootloader);
     70     printf("Radio: %s\n", radio);
     71     printf("Network: %s\n", network);
     72 
     73     printf("Kernel: ");
     74     dump_file(NULL, "/proc/version");
     75     printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
     76     printf("\n");
     77 
     78     run_command("UPTIME", 10, "uptime", NULL);
     79     dump_file("MEMORY INFO", "/proc/meminfo");
     80     run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL);
     81     run_command("PROCRANK", 20, "procrank", NULL);
     82     dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat");
     83     dump_file("VMALLOC INFO", "/proc/vmallocinfo");
     84     dump_file("SLAB INFO", "/proc/slabinfo");
     85     dump_file("ZONEINFO", "/proc/zoneinfo");
     86     dump_file("PAGETYPEINFO", "/proc/pagetypeinfo");
     87     dump_file("BUDDYINFO", "/proc/buddyinfo");
     88     dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index");
     89 
     90 
     91     dump_file("KERNEL WAKELOCKS", "/proc/wakelocks");
     92     dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources");
     93     dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
     94     dump_file("KERNEL SYNC", "/d/sync");
     95 
     96     run_command("PROCESSES", 10, "ps", "-P", NULL);
     97     run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL);
     98     run_command("LIBRANK", 10, "librank", NULL);
     99 
    100     do_dmesg();
    101 
    102     run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL);
    103 
    104     if (screenshot_path[0]) {
    105         ALOGI("taking screenshot\n");
    106         run_command(NULL, 10, "/system/bin/screencap", "-p", screenshot_path, NULL);
    107         ALOGI("wrote screenshot: %s\n", screenshot_path);
    108     }
    109 
    110     for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES");
    111     for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS");
    112 
    113     // dump_file("EVENT LOG TAGS", "/etc/event-log-tags");
    114     run_command("SYSTEM LOG", 20, "logcat", "-v", "threadtime", "-d", "*:v", NULL);
    115     run_command("EVENT LOG", 20, "logcat", "-b", "events", "-v", "threadtime", "-d", "*:v", NULL);
    116     run_command("RADIO LOG", 20, "logcat", "-b", "radio", "-v", "threadtime", "-d", "*:v", NULL);
    117 
    118 
    119     /* show the traces we collected in main(), if that was done */
    120     if (dump_traces_path != NULL) {
    121         dump_file("VM TRACES JUST NOW", dump_traces_path);
    122     }
    123 
    124     /* only show ANR traces if they're less than 15 minutes old */
    125     struct stat st;
    126     char anr_traces_path[PATH_MAX];
    127     property_get("dalvik.vm.stack-trace-file", anr_traces_path, "");
    128     if (!anr_traces_path[0]) {
    129         printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n");
    130     } else if (stat(anr_traces_path, &st)) {
    131         printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
    132     } else {
    133         dump_file("VM TRACES AT LAST ANR", anr_traces_path);
    134     }
    135 
    136     /* slow traces for slow operations */
    137     if (anr_traces_path[0] != 0) {
    138         int tail = strlen(anr_traces_path)-1;
    139         while (tail > 0 && anr_traces_path[tail] != '/') {
    140             tail--;
    141         }
    142         int i = 0;
    143         while (1) {
    144             sprintf(anr_traces_path+tail+1, "slow%02d.txt", i);
    145             if (stat(anr_traces_path, &st)) {
    146                 // No traces file at this index, done with the files.
    147                 break;
    148             }
    149             dump_file("VM TRACES WHEN SLOW", anr_traces_path);
    150             i++;
    151         }
    152     }
    153 
    154     dump_file("NETWORK DEV INFO", "/proc/net/dev");
    155     dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all");
    156     dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt");
    157     dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl");
    158     dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats");
    159 
    160     dump_file("NETWORK ROUTES", "/proc/net/route");
    161     dump_file("NETWORK ROUTES IPV6", "/proc/net/ipv6_route");
    162 
    163     /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */
    164     dump_file("LAST KMSG", "/proc/last_kmsg");
    165     dump_file("LAST PANIC CONSOLE", "/data/dontpanic/apanic_console");
    166     dump_file("LAST PANIC THREADS", "/data/dontpanic/apanic_threads");
    167 
    168     run_command("SYSTEM SETTINGS", 20, SU_PATH, "root", "sqlite3",
    169             "/data/data/com.android.providers.settings/databases/settings.db",
    170             "pragma user_version; select * from system; select * from secure; select * from global;", NULL);
    171 
    172     /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */
    173     run_command("NETWORK INTERFACES", 10, SU_PATH, "root", "netcfg", NULL);
    174     run_command("IP RULES", 10, "ip", "rule", "show", NULL);
    175     run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL);
    176     run_command("ROUTE TABLE 60", 10, "ip", "route", "show", "table", "60", NULL);
    177     run_command("ROUTE TABLE 61 v6", 10, "ip", "-6", "route", "show", "table", "60", NULL);
    178     run_command("ROUTE TABLE 61", 10, "ip", "route", "show", "table", "61", NULL);
    179     run_command("ROUTE TABLE 61 v6", 10, "ip", "-6", "route", "show", "table", "61", NULL);
    180     dump_file("ARP CACHE", "/proc/net/arp");
    181     run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL);
    182     run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL);
    183     run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL);
    184     /* no ip6 nat */
    185     run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL);
    186     run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL);
    187 
    188     run_command("WIFI NETWORKS", 20,
    189             SU_PATH, "root", "wpa_cli", "list_networks", NULL);
    190 
    191 #ifdef FWDUMP_bcmdhd
    192     run_command("DUMP WIFI INTERNAL COUNTERS", 20,
    193             SU_PATH, "root", "wlutil", "counters", NULL);
    194 #endif
    195     dump_file("INTERRUPTS (1)", "/proc/interrupts");
    196 
    197     property_get("dhcp.wlan0.gateway", network, "");
    198     if (network[0])
    199         run_command("PING GATEWAY", 10, "ping", "-c", "3", "-i", ".5", network, NULL);
    200     property_get("dhcp.wlan0.dns1", network, "");
    201     if (network[0])
    202         run_command("PING DNS1", 10, "ping", "-c", "3", "-i", ".5", network, NULL);
    203     property_get("dhcp.wlan0.dns2", network, "");
    204     if (network[0])
    205         run_command("PING DNS2", 10, "ping", "-c", "3", "-i", ".5", network, NULL);
    206 #ifdef FWDUMP_bcmdhd
    207     run_command("DUMP WIFI STATUS", 20,
    208             SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL);
    209     run_command("DUMP WIFI INTERNAL COUNTERS", 20,
    210             SU_PATH, "root", "wlutil", "counters", NULL);
    211 #endif
    212     dump_file("INTERRUPTS (2)", "/proc/interrupts");
    213 
    214     print_properties();
    215 
    216     run_command("VOLD DUMP", 10, "vdc", "dump", NULL);
    217     run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL);
    218 
    219     run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL);
    220 
    221     run_command("PACKAGE SETTINGS", 20, SU_PATH, "root", "cat", "/data/system/packages.xml", NULL);
    222     dump_file("PACKAGE UID ERRORS", "/data/system/uiderrors.txt");
    223 
    224     run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL);
    225 
    226     printf("------ BACKLIGHTS ------\n");
    227     printf("LCD brightness=");
    228     dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness");
    229     printf("Button brightness=");
    230     dump_file(NULL, "/sys/class/leds/button-backlight/brightness");
    231     printf("Keyboard brightness=");
    232     dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness");
    233     printf("ALS mode=");
    234     dump_file(NULL, "/sys/class/leds/lcd-backlight/als");
    235     printf("LCD driver registers:\n");
    236     dump_file(NULL, "/sys/class/leds/lcd-backlight/registers");
    237     printf("\n");
    238 
    239     /* Binder state is expensive to look at as it uses a lot of memory. */
    240     dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log");
    241     dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log");
    242     dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions");
    243     dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats");
    244     dump_file("BINDER STATE", "/sys/kernel/debug/binder/state");
    245 
    246 #ifdef BOARD_HAS_DUMPSTATE
    247     printf("========================================================\n");
    248     printf("== Board\n");
    249     printf("========================================================\n");
    250 
    251     dumpstate_board();
    252     printf("\n");
    253 #endif
    254 
    255     /* Migrate the ril_dumpstate to a dumpstate_board()? */
    256     char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0};
    257     property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30");
    258     if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) {
    259         if (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) {
    260             // su does not exist on user builds, so try running without it.
    261             // This way any implementations of vril-dump that do not require
    262             // root can run on user builds.
    263             run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout),
    264                     "vril-dump", NULL);
    265         } else {
    266             run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout),
    267                     SU_PATH, "root", "vril-dump", NULL);
    268         }
    269     }
    270 
    271     printf("========================================================\n");
    272     printf("== Android Framework Services\n");
    273     printf("========================================================\n");
    274 
    275     /* the full dumpsys is starting to take a long time, so we need
    276        to increase its timeout.  we really need to do the timeouts in
    277        dumpsys itself... */
    278     run_command("DUMPSYS", 60, "dumpsys", NULL);
    279 
    280     printf("========================================================\n");
    281     printf("== Running Application Activities\n");
    282     printf("========================================================\n");
    283 
    284     run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL);
    285 
    286     printf("========================================================\n");
    287     printf("== Running Application Services\n");
    288     printf("========================================================\n");
    289 
    290     run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL);
    291 
    292     printf("========================================================\n");
    293     printf("== Running Application Providers\n");
    294     printf("========================================================\n");
    295 
    296     run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL);
    297 
    298 
    299     printf("========================================================\n");
    300     printf("== dumpstate: done\n");
    301     printf("========================================================\n");
    302 }
    303 
    304 static void usage() {
    305     fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s] [-q]\n"
    306             "  -o: write to file (instead of stdout)\n"
    307             "  -d: append date to filename (requires -o)\n"
    308             "  -z: gzip output (requires -o)\n"
    309             "  -p: capture screenshot to filename.png (requires -o)\n"
    310             "  -s: write output to control socket (for init)\n"
    311             "  -b: play sound file instead of vibrate, at beginning of job\n"
    312             "  -e: play sound file instead of vibrate, at end of job\n"
    313             "  -q: disable vibrate\n"
    314             "  -B: send broadcast when finished (requires -o and -p)\n"
    315 		);
    316 }
    317 
    318 int main(int argc, char *argv[]) {
    319     int do_add_date = 0;
    320     int do_compress = 0;
    321     int do_vibrate = 1;
    322     char* use_outfile = 0;
    323     char* begin_sound = 0;
    324     char* end_sound = 0;
    325     int use_socket = 0;
    326     int do_fb = 0;
    327     int do_broadcast = 0;
    328 
    329     if (getuid() != 0) {
    330         // Old versions of the adb client would call the
    331         // dumpstate command directly. Newer clients
    332         // call /system/bin/bugreport instead. If we detect
    333         // we're being called incorrectly, then exec the
    334         // correct program.
    335         return execl("/system/bin/bugreport", "/system/bin/bugreport", NULL);
    336     }
    337     ALOGI("begin\n");
    338 
    339     signal(SIGPIPE, SIG_IGN);
    340 
    341     /* set as high priority, and protect from OOM killer */
    342     setpriority(PRIO_PROCESS, 0, -20);
    343     FILE *oom_adj = fopen("/proc/self/oom_adj", "w");
    344     if (oom_adj) {
    345         fputs("-17", oom_adj);
    346         fclose(oom_adj);
    347     }
    348 
    349     /* very first thing, collect stack traces from Dalvik and native processes (needs root) */
    350     dump_traces_path = dump_traces();
    351 
    352     int c;
    353     while ((c = getopt(argc, argv, "b:de:ho:svqzpB")) != -1) {
    354         switch (c) {
    355             case 'b': begin_sound = optarg;  break;
    356             case 'd': do_add_date = 1;       break;
    357             case 'e': end_sound = optarg;    break;
    358             case 'o': use_outfile = optarg;  break;
    359             case 's': use_socket = 1;        break;
    360             case 'v': break;  // compatibility no-op
    361             case 'q': do_vibrate = 0;        break;
    362             case 'z': do_compress = 6;       break;
    363             case 'p': do_fb = 1;             break;
    364             case 'B': do_broadcast = 1;      break;
    365             case '?': printf("\n");
    366             case 'h':
    367                 usage();
    368                 exit(1);
    369         }
    370     }
    371 
    372     FILE *vibrator = 0;
    373     if (do_vibrate) {
    374         /* open the vibrator before dropping root */
    375         vibrator = fopen("/sys/class/timed_output/vibrator/enable", "w");
    376         if (vibrator) fcntl(fileno(vibrator), F_SETFD, FD_CLOEXEC);
    377     }
    378 
    379     /* read /proc/cmdline before dropping root */
    380     FILE *cmdline = fopen("/proc/cmdline", "r");
    381     if (cmdline != NULL) {
    382         fgets(cmdline_buf, sizeof(cmdline_buf), cmdline);
    383         fclose(cmdline);
    384     }
    385 
    386     if (prctl(PR_SET_KEEPCAPS, 1) < 0) {
    387         ALOGE("prctl(PR_SET_KEEPCAPS) failed: %s\n", strerror(errno));
    388         return -1;
    389     }
    390 
    391     /* switch to non-root user and group */
    392     gid_t groups[] = { AID_LOG, AID_SDCARD_R, AID_SDCARD_RW,
    393             AID_MOUNT, AID_INET, AID_NET_BW_STATS };
    394     if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
    395         ALOGE("Unable to setgroups, aborting: %s\n", strerror(errno));
    396         return -1;
    397     }
    398     if (setgid(AID_SHELL) != 0) {
    399         ALOGE("Unable to setgid, aborting: %s\n", strerror(errno));
    400         return -1;
    401     }
    402     if (setuid(AID_SHELL) != 0) {
    403         ALOGE("Unable to setuid, aborting: %s\n", strerror(errno));
    404         return -1;
    405     }
    406 
    407     struct __user_cap_header_struct capheader;
    408     struct __user_cap_data_struct capdata[2];
    409     memset(&capheader, 0, sizeof(capheader));
    410     memset(&capdata, 0, sizeof(capdata));
    411     capheader.version = _LINUX_CAPABILITY_VERSION_3;
    412     capheader.pid = 0;
    413 
    414     capdata[CAP_TO_INDEX(CAP_SYSLOG)].permitted = CAP_TO_MASK(CAP_SYSLOG);
    415     capdata[CAP_TO_INDEX(CAP_SYSLOG)].effective = CAP_TO_MASK(CAP_SYSLOG);
    416     capdata[0].inheritable = 0;
    417     capdata[1].inheritable = 0;
    418 
    419     if (capset(&capheader, &capdata[0]) < 0) {
    420         ALOGE("capset failed: %s\n", strerror(errno));
    421         return -1;
    422     }
    423 
    424     char path[PATH_MAX], tmp_path[PATH_MAX];
    425     pid_t gzip_pid = -1;
    426 
    427     if (use_socket) {
    428         redirect_to_socket(stdout, "dumpstate");
    429     } else if (use_outfile) {
    430         strlcpy(path, use_outfile, sizeof(path));
    431         if (do_add_date) {
    432             char date[80];
    433             time_t now = time(NULL);
    434             strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now));
    435             strlcat(path, date, sizeof(path));
    436         }
    437         if (do_fb) {
    438             strlcpy(screenshot_path, path, sizeof(screenshot_path));
    439             strlcat(screenshot_path, ".png", sizeof(screenshot_path));
    440         }
    441         strlcat(path, ".txt", sizeof(path));
    442         if (do_compress) strlcat(path, ".gz", sizeof(path));
    443         strlcpy(tmp_path, path, sizeof(tmp_path));
    444         strlcat(tmp_path, ".tmp", sizeof(tmp_path));
    445         gzip_pid = redirect_to_file(stdout, tmp_path, do_compress);
    446     }
    447 
    448     if (begin_sound) {
    449         play_sound(begin_sound);
    450     } else if (vibrator) {
    451         fputs("150", vibrator);
    452         fflush(vibrator);
    453     }
    454 
    455     dumpstate();
    456 
    457     if (end_sound) {
    458         play_sound(end_sound);
    459     } else if (vibrator) {
    460         int i;
    461         for (i = 0; i < 3; i++) {
    462             fputs("75\n", vibrator);
    463             fflush(vibrator);
    464             usleep((75 + 50) * 1000);
    465         }
    466         fclose(vibrator);
    467     }
    468 
    469     /* wait for gzip to finish, otherwise it might get killed when we exit */
    470     if (gzip_pid > 0) {
    471         fclose(stdout);
    472         waitpid(gzip_pid, NULL, 0);
    473     }
    474 
    475     /* rename the (now complete) .tmp file to its final location */
    476     if (use_outfile && rename(tmp_path, path)) {
    477         fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno));
    478     }
    479 
    480     if (do_broadcast && use_outfile && do_fb) {
    481         run_command(NULL, 5, "/system/bin/am", "broadcast", "--user", "0",
    482                 "-a", "android.intent.action.BUGREPORT_FINISHED",
    483                 "--es", "android.intent.extra.BUGREPORT", path,
    484                 "--es", "android.intent.extra.SCREENSHOT", screenshot_path,
    485                 "--receiver-permission", "android.permission.DUMP", NULL);
    486     }
    487 
    488     ALOGI("done\n");
    489 
    490     return 0;
    491 }
    492