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