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 */
39static char cmdline_buf[16384] = "(unknown)";
40static const char *dump_traces_path = NULL;
41
42/* dumps the current system state to stdout */
43static void dumpstate() {
44    time_t now = time(NULL);
45    char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX];
46    char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX];
47    char network[PROPERTY_VALUE_MAX], date[80];
48
49    property_get("ro.build.display.id", build, "(unknown)");
50    property_get("ro.build.fingerprint", fingerprint, "(unknown)");
51    property_get("ro.baseband", radio, "(unknown)");
52    property_get("ro.bootloader", bootloader, "(unknown)");
53    property_get("gsm.operator.alpha", network, "(unknown)");
54    strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now));
55
56    printf("========================================================\n");
57    printf("== dumpstate: %s\n", date);
58    printf("========================================================\n");
59
60    printf("\n");
61    printf("Build: %s\n", build);
62    printf("Bootloader: %s\n", bootloader);
63    printf("Radio: %s\n", radio);
64    printf("Network: %s\n", network);
65
66    printf("Kernel: ");
67    dump_file(NULL, "/proc/version");
68    printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
69    printf("\n");
70
71    dump_file("MEMORY INFO", "/proc/meminfo");
72    run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL);
73    run_command("PROCRANK", 20, "procrank", NULL);
74    dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat");
75    dump_file("VMALLOC INFO", "/proc/vmallocinfo");
76    dump_file("SLAB INFO", "/proc/slabinfo");
77    dump_file("ZONEINFO", "/proc/zoneinfo");
78
79    run_command("SYSTEM LOG", 20, "logcat", "-v", "time", "-d", "*:v", NULL);
80
81    /* show the traces we collected in main(), if that was done */
82    if (dump_traces_path != NULL) {
83        dump_file("VM TRACES JUST NOW", dump_traces_path);
84    }
85
86    /* only show ANR traces if they're less than 15 minutes old */
87    struct stat st;
88    char anr_traces_path[PATH_MAX];
89    property_get("dalvik.vm.stack-trace-file", anr_traces_path, "");
90    if (!anr_traces_path[0]) {
91        printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n");
92    } else if (stat(anr_traces_path, &st)) {
93        printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
94    } else {
95        dump_file("VM TRACES AT LAST ANR", anr_traces_path);
96    }
97
98    // dump_file("EVENT LOG TAGS", "/etc/event-log-tags");
99    run_command("EVENT LOG", 20, "logcat", "-b", "events", "-v", "time", "-d", "*:v", NULL);
100    run_command("RADIO LOG", 20, "logcat", "-b", "radio", "-v", "time", "-d", "*:v", NULL);
101
102    run_command("NETWORK INTERFACES", 10, "netcfg", NULL);
103    dump_file("NETWORK ROUTES", "/proc/net/route");
104    dump_file("ARP CACHE", "/proc/net/arp");
105
106#ifdef FWDUMP_bcm4329
107    run_command("DUMP WIFI FIRMWARE LOG", 60,
108            "su", "root", "dhdutil", "-i", "eth0", "upload", "/data/local/tmp/wlan_crash.dump", NULL);
109#endif
110
111    print_properties();
112
113    run_command("KERNEL LOG", 20, "dmesg", NULL);
114
115    dump_file("KERNEL WAKELOCKS", "/proc/wakelocks");
116    dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
117
118    run_command("VOLD DUMP", 10, "vdc", "dump", NULL);
119    run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL);
120
121    run_command("PROCESSES", 10, "ps", "-P", NULL);
122    run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL);
123    run_command("LIBRANK", 10, "librank", NULL);
124
125    dump_file("BINDER FAILED TRANSACTION LOG", "/proc/binder/failed_transaction_log");
126    dump_file("BINDER TRANSACTION LOG", "/proc/binder/transaction_log");
127    dump_file("BINDER TRANSACTIONS", "/proc/binder/transactions");
128    dump_file("BINDER STATS", "/proc/binder/stats");
129    run_command("BINDER PROCESS STATE", 10, "sh", "-c", "cat /proc/binder/proc/*");
130
131    run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL);
132
133    dump_file("PACKAGE SETTINGS", "/data/system/packages.xml");
134    dump_file("PACKAGE UID ERRORS", "/data/system/uiderrors.txt");
135
136    dump_file("LAST KMSG", "/proc/last_kmsg");
137    run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL);
138    dump_file("LAST PANIC CONSOLE", "/data/dontpanic/apanic_console");
139    dump_file("LAST PANIC THREADS", "/data/dontpanic/apanic_threads");
140
141    for_each_pid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS");
142
143    printf("------ BACKLIGHTS ------\n");
144    printf("LCD brightness=");
145    dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness");
146    printf("Button brightness=");
147    dump_file(NULL, "/sys/class/leds/button-backlight/brightness");
148    printf("Keyboard brightness=");
149    dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness");
150    printf("ALS mode=");
151    dump_file(NULL, "/sys/class/leds/lcd-backlight/als");
152    printf("LCD driver registers:\n");
153    dump_file(NULL, "/sys/class/leds/lcd-backlight/registers");
154    printf("\n");
155
156    printf("========================================================\n");
157    printf("== Android Framework Services\n");
158    printf("========================================================\n");
159
160    /* the full dumpsys is starting to take a long time, so we need
161       to increase its timeout.  we really need to do the timeouts in
162       dumpsys itself... */
163    run_command("DUMPSYS", 60, "dumpsys", NULL);
164}
165
166static void usage() {
167    fprintf(stderr, "usage: dumpstate [-d] [-o file] [-s] [-z]\n"
168            "  -d: append date to filename (requires -o)\n"
169            "  -o: write to file (instead of stdout)\n"
170            "  -s: write output to control socket (for init)\n"
171            "  -z: gzip output (requires -o)\n");
172}
173
174int main(int argc, char *argv[]) {
175    int do_add_date = 0;
176    int do_compress = 0;
177    char* use_outfile = 0;
178    int use_socket = 0;
179
180    LOGI("begin\n");
181
182    /* set as high priority, and protect from OOM killer */
183    setpriority(PRIO_PROCESS, 0, -20);
184    FILE *oom_adj = fopen("/proc/self/oom_adj", "w");
185    if (oom_adj) {
186        fputs("-17", oom_adj);
187        fclose(oom_adj);
188    }
189
190    /* very first thing, collect VM traces from Dalvik (needs root) */
191    dump_traces_path = dump_vm_traces();
192
193    int c;
194    while ((c = getopt(argc, argv, "dho:svz")) != -1) {
195        switch (c) {
196            case 'd': do_add_date = 1;       break;
197            case 'o': use_outfile = optarg;  break;
198            case 's': use_socket = 1;        break;
199            case 'v': break;  // compatibility no-op
200            case 'z': do_compress = 6;       break;
201            case '?': printf("\n");
202            case 'h':
203                usage();
204                exit(1);
205        }
206    }
207
208    /* open the vibrator before dropping root */
209    FILE *vibrator = fopen("/sys/class/timed_output/vibrator/enable", "w");
210    if (vibrator) fcntl(fileno(vibrator), F_SETFD, FD_CLOEXEC);
211
212    /* read /proc/cmdline before dropping root */
213    FILE *cmdline = fopen("/proc/cmdline", "r");
214    if (cmdline != NULL) {
215        fgets(cmdline_buf, sizeof(cmdline_buf), cmdline);
216        fclose(cmdline);
217    }
218
219    /* switch to non-root user and group */
220    gid_t groups[] = { AID_LOG, AID_SDCARD_RW, AID_MOUNT };
221    setgroups(sizeof(groups)/sizeof(groups[0]), groups);
222    setuid(AID_SHELL);
223
224    char path[PATH_MAX], tmp_path[PATH_MAX];
225    pid_t gzip_pid = -1;
226
227    if (use_socket) {
228        redirect_to_socket(stdout, "dumpstate");
229    } else if (use_outfile) {
230        strlcpy(path, use_outfile, sizeof(path));
231        if (do_add_date) {
232            char date[80];
233            time_t now = time(NULL);
234            strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now));
235            strlcat(path, date, sizeof(path));
236        }
237        strlcat(path, ".txt", sizeof(path));
238        if (do_compress) strlcat(path, ".gz", sizeof(path));
239        strlcpy(tmp_path, path, sizeof(tmp_path));
240        strlcat(tmp_path, ".tmp", sizeof(tmp_path));
241        gzip_pid = redirect_to_file(stdout, tmp_path, do_compress);
242    }
243
244    /* bzzzzzz */
245    if (vibrator) {
246        fputs("150", vibrator);
247        fflush(vibrator);
248    }
249
250    dumpstate();
251
252    /* bzzz bzzz bzzz */
253    if (vibrator) {
254        int i;
255        for (i = 0; i < 3; i++) {
256            fputs("75\n", vibrator);
257            fflush(vibrator);
258            usleep((75 + 50) * 1000);
259        }
260        fclose(vibrator);
261    }
262
263    /* wait for gzip to finish, otherwise it might get killed when we exit */
264    if (gzip_pid > 0) {
265        fclose(stdout);
266        waitpid(gzip_pid, NULL, 0);
267    }
268
269    /* rename the (now complete) .tmp file to its final location */
270    if (use_outfile && rename(tmp_path, path)) {
271        fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno));
272    }
273
274    LOGI("done\n");
275
276    return 0;
277}
278