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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 
     29 #include <cutils/properties.h>
     30 
     31 #include "private/android_filesystem_config.h"
     32 
     33 #define LOG_TAG "dumpstate"
     34 #include <utils/Log.h>
     35 
     36 #include "dumpstate.h"
     37 
     38 /* read before root is shed */
     39 static char cmdline_buf[16384] = "(unknown)";
     40 static const char *dump_traces_path = NULL;
     41 
     42 static char screenshot_path[PATH_MAX] = "";
     43 
     44 /* dumps the current system state to stdout */
     45 static void dumpstate() {
     46     time_t now = time(NULL);
     47     char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX];
     48     char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX];
     49     char network[PROPERTY_VALUE_MAX], date[80];
     50     char build_type[PROPERTY_VALUE_MAX];
     51 
     52     property_get("ro.build.display.id", build, "(unknown)");
     53     property_get("ro.build.fingerprint", fingerprint, "(unknown)");
     54     property_get("ro.build.type", build_type, "(unknown)");
     55     property_get("ro.baseband", radio, "(unknown)");
     56     property_get("ro.bootloader", bootloader, "(unknown)");
     57     property_get("gsm.operator.alpha", network, "(unknown)");
     58     strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now));
     59 
     60     printf("========================================================\n");
     61     printf("== dumpstate: %s\n", date);
     62     printf("========================================================\n");
     63 
     64     printf("\n");
     65     printf("Build: %s\n", build);
     66     printf("Bootloader: %s\n", bootloader);
     67     printf("Radio: %s\n", radio);
     68     printf("Network: %s\n", network);
     69 
     70     printf("Kernel: ");
     71     dump_file(NULL, "/proc/version");
     72     printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
     73     printf("\n");
     74 
     75     run_command("UPTIME", 10, "uptime", NULL);
     76     dump_file("MEMORY INFO", "/proc/meminfo");
     77     run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL);
     78     run_command("PROCRANK", 20, "procrank", NULL);
     79     dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat");
     80     dump_file("VMALLOC INFO", "/proc/vmallocinfo");
     81     dump_file("SLAB INFO", "/proc/slabinfo");
     82     dump_file("ZONEINFO", "/proc/zoneinfo");
     83     dump_file("PAGETYPEINFO", "/proc/pagetypeinfo");
     84     dump_file("BUDDYINFO", "/proc/buddyinfo");
     85 
     86     if (screenshot_path[0]) {
     87         LOGI("taking screenshot\n");
     88         run_command(NULL, 5, "su", "root", "screenshot", screenshot_path, NULL);
     89         LOGI("wrote screenshot: %s\n", screenshot_path);
     90     }
     91 
     92     run_command("SYSTEM LOG", 20, "logcat", "-v", "threadtime", "-d", "*:v", NULL);
     93 
     94     /* show the traces we collected in main(), if that was done */
     95     if (dump_traces_path != NULL) {
     96         dump_file("VM TRACES JUST NOW", dump_traces_path);
     97     }
     98 
     99     /* only show ANR traces if they're less than 15 minutes old */
    100     struct stat st;
    101     char anr_traces_path[PATH_MAX];
    102     property_get("dalvik.vm.stack-trace-file", anr_traces_path, "");
    103     if (!anr_traces_path[0]) {
    104         printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n");
    105     } else if (stat(anr_traces_path, &st)) {
    106         printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
    107     } else {
    108         dump_file("VM TRACES AT LAST ANR", anr_traces_path);
    109     }
    110 
    111     /* slow traces for slow operations */
    112     if (anr_traces_path[0] != 0) {
    113         int tail = strlen(anr_traces_path)-1;
    114         while (tail > 0 && anr_traces_path[tail] != '/') {
    115             tail--;
    116         }
    117         int i = 0;
    118         while (1) {
    119             sprintf(anr_traces_path+tail+1, "slow%02d.txt", i);
    120             if (stat(anr_traces_path, &st)) {
    121                 // No traces file at this index, done with the files.
    122                 break;
    123             }
    124             dump_file("VM TRACES WHEN SLOW", anr_traces_path);
    125             i++;
    126         }
    127     }
    128 
    129     // dump_file("EVENT LOG TAGS", "/etc/event-log-tags");
    130     run_command("EVENT LOG", 20, "logcat", "-b", "events", "-v", "threadtime", "-d", "*:v", NULL);
    131     run_command("RADIO LOG", 20, "logcat", "-b", "radio", "-v", "threadtime", "-d", "*:v", NULL);
    132 
    133     run_command("NETWORK INTERFACES", 10, "su", "root", "netcfg", NULL);
    134     dump_file("NETWORK DEV INFO", "/proc/net/dev");
    135     dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all");
    136     dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl");
    137     run_command("QTAGUID STATS INFO", 10, "su", "root", "cat", "/proc/net/xt_qtaguid/stats", NULL);
    138 
    139     dump_file("NETWORK ROUTES", "/proc/net/route");
    140     dump_file("NETWORK ROUTES IPV6", "/proc/net/ipv6_route");
    141     run_command("IP RULES", 10, "ip", "rule", "show", NULL);
    142     run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL);
    143     run_command("ROUTE TABLE 60", 10, "ip", "route", "show", "table", "60", NULL);
    144     run_command("ROUTE TABLE 61 v6", 10, "ip", "-6", "route", "show", "table", "60", NULL);
    145     run_command("ROUTE TABLE 61", 10, "ip", "route", "show", "table", "61", NULL);
    146     run_command("ROUTE TABLE 61 v6", 10, "ip", "-6", "route", "show", "table", "61", NULL);
    147     dump_file("ARP CACHE", "/proc/net/arp");
    148     run_command("IPTABLES", 10, "su", "root", "iptables", "-L", "-nvx", NULL);
    149     run_command("IP6TABLES", 10, "su", "root", "ip6tables", "-L", "-nvx", NULL);
    150     run_command("IPTABLE NAT", 10, "su", "root", "iptables", "-t", "nat", "-L", "-n", NULL);
    151     run_command("IPT6ABLE NAT", 10, "su", "root", "ip6tables", "-t", "nat", "-L", "-n", NULL);
    152 
    153     run_command("WIFI NETWORKS", 20,
    154             "su", "root", "wpa_cli", "list_networks", NULL);
    155 
    156     property_get("dhcp.wlan0.gateway", network, "");
    157     if (network[0])
    158         run_command("PING GATEWAY", 10, "su", "root", "ping", "-c", "3", "-i", ".5", network, NULL);
    159     property_get("dhcp.wlan0.dns1", network, "");
    160     if (network[0])
    161         run_command("PING DNS1", 10, "su", "root", "ping", "-c", "3", "-i", ".5", network, NULL);
    162     property_get("dhcp.wlan0.dns2", network, "");
    163     if (network[0])
    164         run_command("PING DNS2", 10, "su", "root", "ping", "-c", "3", "-i", ".5", network, NULL);
    165 #ifdef FWDUMP_bcm4329
    166     run_command("DUMP WIFI STATUS", 20,
    167             "su", "root", "dhdutil", "-i", "wlan0", "dump", NULL);
    168     run_command("DUMP WIFI INTERNAL COUNTERS", 20,
    169             "su", "root", "wlutil", "counters", NULL);
    170 #endif
    171 
    172     char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0};
    173     property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30");
    174     if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) {
    175         if (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) {
    176             // su does not exist on user builds, so try running without it.
    177             // This way any implementations of vril-dump that do not require
    178             // root can run on user builds.
    179             run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout),
    180                     "vril-dump", NULL);
    181         } else {
    182             run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout),
    183                     "su", "root", "vril-dump", NULL);
    184         }
    185     }
    186 
    187     print_properties();
    188 
    189     run_command("KERNEL LOG", 20, "dmesg", NULL);
    190 
    191     dump_file("KERNEL WAKELOCKS", "/proc/wakelocks");
    192     dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
    193 
    194     run_command("VOLD DUMP", 10, "vdc", "dump", NULL);
    195     run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL);
    196 
    197     run_command("PROCESSES", 10, "ps", "-P", NULL);
    198     run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL);
    199     run_command("LIBRANK", 10, "librank", NULL);
    200 
    201     dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log");
    202     dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log");
    203     dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions");
    204     dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats");
    205     dump_file("BINDER STATE", "/sys/kernel/debug/binder/state");
    206 
    207     run_command("FILESYSTEMS & FREE SPACE", 10, "su", "root", "df", NULL);
    208 
    209     dump_file("PACKAGE SETTINGS", "/data/system/packages.xml");
    210     dump_file("PACKAGE UID ERRORS", "/data/system/uiderrors.txt");
    211 
    212     dump_file("LAST KMSG", "/proc/last_kmsg");
    213     run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL);
    214     dump_file("LAST PANIC CONSOLE", "/data/dontpanic/apanic_console");
    215     dump_file("LAST PANIC THREADS", "/data/dontpanic/apanic_threads");
    216 
    217     for_each_pid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS");
    218 
    219     printf("------ BACKLIGHTS ------\n");
    220     printf("LCD brightness=");
    221     dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness");
    222     printf("Button brightness=");
    223     dump_file(NULL, "/sys/class/leds/button-backlight/brightness");
    224     printf("Keyboard brightness=");
    225     dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness");
    226     printf("ALS mode=");
    227     dump_file(NULL, "/sys/class/leds/lcd-backlight/als");
    228     printf("LCD driver registers:\n");
    229     dump_file(NULL, "/sys/class/leds/lcd-backlight/registers");
    230     printf("\n");
    231 
    232     run_command("LIST OF OPEN FILES", 10, "su", "root", "lsof", NULL);
    233 
    234     for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES");
    235 
    236 #ifdef BOARD_HAS_DUMPSTATE
    237     printf("========================================================\n");
    238     printf("== Board\n");
    239     printf("========================================================\n");
    240 
    241     dumpstate_board();
    242     printf("\n");
    243 #endif
    244 
    245     printf("========================================================\n");
    246     printf("== Android Framework Services\n");
    247     printf("========================================================\n");
    248 
    249     /* the full dumpsys is starting to take a long time, so we need
    250        to increase its timeout.  we really need to do the timeouts in
    251        dumpsys itself... */
    252     run_command("DUMPSYS", 60, "dumpsys", NULL);
    253 
    254     printf("========================================================\n");
    255     printf("== Running Application Activities\n");
    256     printf("========================================================\n");
    257 
    258     run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL);
    259 
    260     printf("========================================================\n");
    261     printf("== Running Application Services\n");
    262     printf("========================================================\n");
    263 
    264     run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL);
    265 
    266     printf("========================================================\n");
    267     printf("== dumpstate: done\n");
    268     printf("========================================================\n");
    269 }
    270 
    271 static void usage() {
    272     fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s]\n"
    273             "  -o: write to file (instead of stdout)\n"
    274             "  -d: append date to filename (requires -o)\n"
    275             "  -z: gzip output (requires -o)\n"
    276             "  -p: capture screenshot to filename.png (requires -o)\n"
    277             "  -s: write output to control socket (for init)\n"
    278             "  -b: play sound file instead of vibrate, at beginning of job\n"
    279             "  -e: play sound file instead of vibrate, at end of job\n"
    280 		);
    281 }
    282 
    283 int main(int argc, char *argv[]) {
    284     int do_add_date = 0;
    285     int do_compress = 0;
    286     char* use_outfile = 0;
    287     char* begin_sound = 0;
    288     char* end_sound = 0;
    289     int use_socket = 0;
    290     int do_fb = 0;
    291 
    292     LOGI("begin\n");
    293 
    294     /* set as high priority, and protect from OOM killer */
    295     setpriority(PRIO_PROCESS, 0, -20);
    296     FILE *oom_adj = fopen("/proc/self/oom_adj", "w");
    297     if (oom_adj) {
    298         fputs("-17", oom_adj);
    299         fclose(oom_adj);
    300     }
    301 
    302     /* very first thing, collect VM traces from Dalvik (needs root) */
    303     dump_traces_path = dump_vm_traces();
    304 
    305     int c;
    306     while ((c = getopt(argc, argv, "b:de:ho:svzp")) != -1) {
    307         switch (c) {
    308             case 'b': begin_sound = optarg;  break;
    309             case 'd': do_add_date = 1;       break;
    310             case 'e': end_sound = optarg;    break;
    311             case 'o': use_outfile = optarg;  break;
    312             case 's': use_socket = 1;        break;
    313             case 'v': break;  // compatibility no-op
    314             case 'z': do_compress = 6;       break;
    315             case 'p': do_fb = 1;             break;
    316             case '?': printf("\n");
    317             case 'h':
    318                 usage();
    319                 exit(1);
    320         }
    321     }
    322 
    323     /* open the vibrator before dropping root */
    324     FILE *vibrator = fopen("/sys/class/timed_output/vibrator/enable", "w");
    325     if (vibrator) fcntl(fileno(vibrator), F_SETFD, FD_CLOEXEC);
    326 
    327     /* read /proc/cmdline before dropping root */
    328     FILE *cmdline = fopen("/proc/cmdline", "r");
    329     if (cmdline != NULL) {
    330         fgets(cmdline_buf, sizeof(cmdline_buf), cmdline);
    331         fclose(cmdline);
    332     }
    333 
    334     if (getuid() == 0) {
    335         /* switch to non-root user and group */
    336         gid_t groups[] = { AID_LOG, AID_SDCARD_RW, AID_MOUNT, AID_INET };
    337         if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
    338             LOGE("Unable to setgroups, aborting: %s\n", strerror(errno));
    339             return -1;
    340         }
    341         if (setgid(AID_SHELL) != 0) {
    342             LOGE("Unable to setgid, aborting: %s\n", strerror(errno));
    343             return -1;
    344         }
    345         if (setuid(AID_SHELL) != 0) {
    346             LOGE("Unable to setuid, aborting: %s\n", strerror(errno));
    347             return -1;
    348         }
    349     }
    350 
    351     char path[PATH_MAX], tmp_path[PATH_MAX];
    352     pid_t gzip_pid = -1;
    353 
    354     if (use_socket) {
    355         redirect_to_socket(stdout, "dumpstate");
    356     } else if (use_outfile) {
    357         strlcpy(path, use_outfile, sizeof(path));
    358         if (do_add_date) {
    359             char date[80];
    360             time_t now = time(NULL);
    361             strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now));
    362             strlcat(path, date, sizeof(path));
    363         }
    364         if (do_fb) {
    365             strlcpy(screenshot_path, path, sizeof(screenshot_path));
    366             strlcat(screenshot_path, ".png", sizeof(screenshot_path));
    367         }
    368         strlcat(path, ".txt", sizeof(path));
    369         if (do_compress) strlcat(path, ".gz", sizeof(path));
    370         strlcpy(tmp_path, path, sizeof(tmp_path));
    371         strlcat(tmp_path, ".tmp", sizeof(tmp_path));
    372         gzip_pid = redirect_to_file(stdout, tmp_path, do_compress);
    373     }
    374 
    375     if (begin_sound) {
    376         play_sound(begin_sound);
    377     } else if (vibrator) {
    378         fputs("150", vibrator);
    379         fflush(vibrator);
    380     }
    381 
    382     dumpstate();
    383 
    384     if (end_sound) {
    385         play_sound(end_sound);
    386     } else if (vibrator) {
    387         int i;
    388         for (i = 0; i < 3; i++) {
    389             fputs("75\n", vibrator);
    390             fflush(vibrator);
    391             usleep((75 + 50) * 1000);
    392         }
    393         fclose(vibrator);
    394     }
    395 
    396     /* wait for gzip to finish, otherwise it might get killed when we exit */
    397     if (gzip_pid > 0) {
    398         fclose(stdout);
    399         waitpid(gzip_pid, NULL, 0);
    400     }
    401 
    402     /* rename the (now complete) .tmp file to its final location */
    403     if (use_outfile && rename(tmp_path, path)) {
    404         fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno));
    405     }
    406 
    407     LOGI("done\n");
    408 
    409     return 0;
    410 }
    411