dumpstate.c revision 29e27a84c144fe3b941648094cad2a3f1e61e8b3
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 <linux/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 */ 41static char cmdline_buf[16384] = "(unknown)"; 42static const char *dump_traces_path = NULL; 43 44static char screenshot_path[PATH_MAX] = ""; 45 46/* dumps the current system state to stdout */ 47static 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 89 90 dump_file("KERNEL WAKELOCKS", "/proc/wakelocks"); 91 dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources"); 92 dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); 93 94 run_command("PROCESSES", 10, "ps", "-P", NULL); 95 run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL); 96 run_command("LIBRANK", 10, "librank", NULL); 97 98 do_dmesg(); 99 100 run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL); 101 102 for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES"); 103 for_each_pid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); 104 105 // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); 106 run_command("SYSTEM LOG", 20, "logcat", "-v", "threadtime", "-d", "*:v", NULL); 107 run_command("EVENT LOG", 20, "logcat", "-b", "events", "-v", "threadtime", "-d", "*:v", NULL); 108 run_command("RADIO LOG", 20, "logcat", "-b", "radio", "-v", "threadtime", "-d", "*:v", NULL); 109 110 111 /* show the traces we collected in main(), if that was done */ 112 if (dump_traces_path != NULL) { 113 dump_file("VM TRACES JUST NOW", dump_traces_path); 114 } 115 116 /* only show ANR traces if they're less than 15 minutes old */ 117 struct stat st; 118 char anr_traces_path[PATH_MAX]; 119 property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); 120 if (!anr_traces_path[0]) { 121 printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); 122 } else if (stat(anr_traces_path, &st)) { 123 printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); 124 } else { 125 dump_file("VM TRACES AT LAST ANR", anr_traces_path); 126 } 127 128 /* slow traces for slow operations */ 129 if (anr_traces_path[0] != 0) { 130 int tail = strlen(anr_traces_path)-1; 131 while (tail > 0 && anr_traces_path[tail] != '/') { 132 tail--; 133 } 134 int i = 0; 135 while (1) { 136 sprintf(anr_traces_path+tail+1, "slow%02d.txt", i); 137 if (stat(anr_traces_path, &st)) { 138 // No traces file at this index, done with the files. 139 break; 140 } 141 dump_file("VM TRACES WHEN SLOW", anr_traces_path); 142 i++; 143 } 144 } 145 146 dump_file("NETWORK DEV INFO", "/proc/net/dev"); 147 dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all"); 148 dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt"); 149 dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl"); 150 dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats"); 151 152 dump_file("NETWORK ROUTES", "/proc/net/route"); 153 dump_file("NETWORK ROUTES IPV6", "/proc/net/ipv6_route"); 154 155 /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */ 156 dump_file("LAST KMSG", "/proc/last_kmsg"); 157 dump_file("LAST PANIC CONSOLE", "/data/dontpanic/apanic_console"); 158 dump_file("LAST PANIC THREADS", "/data/dontpanic/apanic_threads"); 159 160 if (screenshot_path[0]) { 161 ALOGI("taking screenshot\n"); 162 run_command(NULL, 5, SU_PATH, "root", "screenshot", screenshot_path, NULL); 163 ALOGI("wrote screenshot: %s\n", screenshot_path); 164 } 165 166 run_command("SYSTEM SETTINGS", 20, SU_PATH, "root", "sqlite3", 167 "/data/data/com.android.providers.settings/databases/settings.db", 168 "pragma user_version; select * from system; select * from secure;", NULL); 169 170 /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */ 171 run_command("NETWORK INTERFACES", 10, SU_PATH, "root", "netcfg", NULL); 172 run_command("IP RULES", 10, "ip", "rule", "show", NULL); 173 run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL); 174 run_command("ROUTE TABLE 60", 10, "ip", "route", "show", "table", "60", NULL); 175 run_command("ROUTE TABLE 61 v6", 10, "ip", "-6", "route", "show", "table", "60", NULL); 176 run_command("ROUTE TABLE 61", 10, "ip", "route", "show", "table", "61", NULL); 177 run_command("ROUTE TABLE 61 v6", 10, "ip", "-6", "route", "show", "table", "61", NULL); 178 dump_file("ARP CACHE", "/proc/net/arp"); 179 run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL); 180 run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL); 181 run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL); 182 /* no ip6 nat */ 183 run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL); 184 run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL); 185 186 run_command("WIFI NETWORKS", 20, 187 SU_PATH, "root", "wpa_cli", "list_networks", NULL); 188 189 property_get("dhcp.wlan0.gateway", network, ""); 190 if (network[0]) 191 run_command("PING GATEWAY", 10, SU_PATH, "root", "ping", "-c", "3", "-i", ".5", network, NULL); 192 property_get("dhcp.wlan0.dns1", network, ""); 193 if (network[0]) 194 run_command("PING DNS1", 10, SU_PATH, "root", "ping", "-c", "3", "-i", ".5", network, NULL); 195 property_get("dhcp.wlan0.dns2", network, ""); 196 if (network[0]) 197 run_command("PING DNS2", 10, SU_PATH, "root", "ping", "-c", "3", "-i", ".5", network, NULL); 198#ifdef FWDUMP_bcm4329 199 run_command("DUMP WIFI STATUS", 20, 200 SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL); 201 run_command("DUMP WIFI INTERNAL COUNTERS", 20, 202 SU_PATH, "root", "wlutil", "counters", NULL); 203#endif 204 205 print_properties(); 206 207 run_command("VOLD DUMP", 10, "vdc", "dump", NULL); 208 run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); 209 210 run_command("FILESYSTEMS & FREE SPACE", 10, SU_PATH, "root", "df", NULL); 211 212 run_command("PACKAGE SETTINGS", 20, SU_PATH, "root", "cat", "/data/system/packages.xml", NULL); 213 dump_file("PACKAGE UID ERRORS", "/data/system/uiderrors.txt"); 214 215 run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); 216 217 printf("------ BACKLIGHTS ------\n"); 218 printf("LCD brightness="); 219 dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); 220 printf("Button brightness="); 221 dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); 222 printf("Keyboard brightness="); 223 dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); 224 printf("ALS mode="); 225 dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); 226 printf("LCD driver registers:\n"); 227 dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); 228 printf("\n"); 229 230 /* Binder state is expensive to look at as it uses a lot of memory. */ 231 dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log"); 232 dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log"); 233 dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions"); 234 dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats"); 235 dump_file("BINDER STATE", "/sys/kernel/debug/binder/state"); 236 237#ifdef BOARD_HAS_DUMPSTATE 238 printf("========================================================\n"); 239 printf("== Board\n"); 240 printf("========================================================\n"); 241 242 dumpstate_board(); 243 printf("\n"); 244#endif 245 246 /* Migrate the ril_dumpstate to a dumpstate_board()? */ 247 char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0}; 248 property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30"); 249 if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) { 250 if (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) { 251 // su does not exist on user builds, so try running without it. 252 // This way any implementations of vril-dump that do not require 253 // root can run on user builds. 254 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 255 "vril-dump", NULL); 256 } else { 257 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 258 SU_PATH, "root", "vril-dump", NULL); 259 } 260 } 261 262 printf("========================================================\n"); 263 printf("== Android Framework Services\n"); 264 printf("========================================================\n"); 265 266 /* the full dumpsys is starting to take a long time, so we need 267 to increase its timeout. we really need to do the timeouts in 268 dumpsys itself... */ 269 run_command("DUMPSYS", 60, "dumpsys", NULL); 270 271 printf("========================================================\n"); 272 printf("== Running Application Activities\n"); 273 printf("========================================================\n"); 274 275 run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL); 276 277 printf("========================================================\n"); 278 printf("== Running Application Services\n"); 279 printf("========================================================\n"); 280 281 run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL); 282 283 printf("========================================================\n"); 284 printf("== Running Application Providers\n"); 285 printf("========================================================\n"); 286 287 run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL); 288 289 290 printf("========================================================\n"); 291 printf("== dumpstate: done\n"); 292 printf("========================================================\n"); 293} 294 295static void usage() { 296 fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s]\n" 297 " -o: write to file (instead of stdout)\n" 298 " -d: append date to filename (requires -o)\n" 299 " -z: gzip output (requires -o)\n" 300 " -p: capture screenshot to filename.png (requires -o)\n" 301 " -s: write output to control socket (for init)\n" 302 " -b: play sound file instead of vibrate, at beginning of job\n" 303 " -e: play sound file instead of vibrate, at end of job\n" 304 ); 305} 306 307int main(int argc, char *argv[]) { 308 int do_add_date = 0; 309 int do_compress = 0; 310 char* use_outfile = 0; 311 char* begin_sound = 0; 312 char* end_sound = 0; 313 int use_socket = 0; 314 int do_fb = 0; 315 316 ALOGI("begin\n"); 317 318 signal(SIGPIPE, SIG_IGN); 319 320 /* set as high priority, and protect from OOM killer */ 321 setpriority(PRIO_PROCESS, 0, -20); 322 FILE *oom_adj = fopen("/proc/self/oom_adj", "w"); 323 if (oom_adj) { 324 fputs("-17", oom_adj); 325 fclose(oom_adj); 326 } 327 328 /* very first thing, collect VM traces from Dalvik (needs root) */ 329 dump_traces_path = dump_vm_traces(); 330 331 int c; 332 while ((c = getopt(argc, argv, "b:de:ho:svzp")) != -1) { 333 switch (c) { 334 case 'b': begin_sound = optarg; break; 335 case 'd': do_add_date = 1; break; 336 case 'e': end_sound = optarg; break; 337 case 'o': use_outfile = optarg; break; 338 case 's': use_socket = 1; break; 339 case 'v': break; // compatibility no-op 340 case 'z': do_compress = 6; break; 341 case 'p': do_fb = 1; break; 342 case '?': printf("\n"); 343 case 'h': 344 usage(); 345 exit(1); 346 } 347 } 348 349 /* open the vibrator before dropping root */ 350 FILE *vibrator = fopen("/sys/class/timed_output/vibrator/enable", "w"); 351 if (vibrator) fcntl(fileno(vibrator), F_SETFD, FD_CLOEXEC); 352 353 /* read /proc/cmdline before dropping root */ 354 FILE *cmdline = fopen("/proc/cmdline", "r"); 355 if (cmdline != NULL) { 356 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 357 fclose(cmdline); 358 } 359 360 if (getuid() == 0) { 361 if (prctl(PR_SET_KEEPCAPS, 1) < 0) { 362 ALOGE("prctl(PR_SET_KEEPCAPS) failed: %s\n", strerror(errno)); 363 return -1; 364 } 365 366 /* switch to non-root user and group */ 367 gid_t groups[] = { AID_LOG, AID_SDCARD_R, AID_SDCARD_RW, 368 AID_MOUNT, AID_INET, AID_NET_BW_STATS }; 369 if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) { 370 ALOGE("Unable to setgroups, aborting: %s\n", strerror(errno)); 371 return -1; 372 } 373 if (setgid(AID_SHELL) != 0) { 374 ALOGE("Unable to setgid, aborting: %s\n", strerror(errno)); 375 return -1; 376 } 377 if (setuid(AID_SHELL) != 0) { 378 ALOGE("Unable to setuid, aborting: %s\n", strerror(errno)); 379 return -1; 380 } 381 382 struct __user_cap_header_struct capheader; 383 struct __user_cap_data_struct capdata[2]; 384 memset(&capheader, 0, sizeof(capheader)); 385 memset(&capdata, 0, sizeof(capdata)); 386 capheader.version = _LINUX_CAPABILITY_VERSION_3; 387 capheader.pid = 0; 388 389 capdata[CAP_TO_INDEX(CAP_SYSLOG)].permitted = CAP_TO_MASK(CAP_SYSLOG); 390 capdata[CAP_TO_INDEX(CAP_SYSLOG)].effective = CAP_TO_MASK(CAP_SYSLOG); 391 capdata[0].inheritable = 0; 392 capdata[1].inheritable = 0; 393 394 if (capset(&capheader, &capdata[0]) < 0) { 395 ALOGE("capset failed: %s\n", strerror(errno)); 396 return -1; 397 } 398 } 399 400 char path[PATH_MAX], tmp_path[PATH_MAX]; 401 pid_t gzip_pid = -1; 402 403 if (use_socket) { 404 redirect_to_socket(stdout, "dumpstate"); 405 } else if (use_outfile) { 406 strlcpy(path, use_outfile, sizeof(path)); 407 if (do_add_date) { 408 char date[80]; 409 time_t now = time(NULL); 410 strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now)); 411 strlcat(path, date, sizeof(path)); 412 } 413 if (do_fb) { 414 strlcpy(screenshot_path, path, sizeof(screenshot_path)); 415 strlcat(screenshot_path, ".png", sizeof(screenshot_path)); 416 } 417 strlcat(path, ".txt", sizeof(path)); 418 if (do_compress) strlcat(path, ".gz", sizeof(path)); 419 strlcpy(tmp_path, path, sizeof(tmp_path)); 420 strlcat(tmp_path, ".tmp", sizeof(tmp_path)); 421 gzip_pid = redirect_to_file(stdout, tmp_path, do_compress); 422 } 423 424 if (begin_sound) { 425 play_sound(begin_sound); 426 } else if (vibrator) { 427 fputs("150", vibrator); 428 fflush(vibrator); 429 } 430 431 dumpstate(); 432 433 if (end_sound) { 434 play_sound(end_sound); 435 } else if (vibrator) { 436 int i; 437 for (i = 0; i < 3; i++) { 438 fputs("75\n", vibrator); 439 fflush(vibrator); 440 usleep((75 + 50) * 1000); 441 } 442 fclose(vibrator); 443 } 444 445 /* wait for gzip to finish, otherwise it might get killed when we exit */ 446 if (gzip_pid > 0) { 447 fclose(stdout); 448 waitpid(gzip_pid, NULL, 0); 449 } 450 451 /* rename the (now complete) .tmp file to its final location */ 452 if (use_outfile && rename(tmp_path, path)) { 453 fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno)); 454 } 455 456 ALOGI("done\n"); 457 458 return 0; 459} 460