dumpstate.cpp revision f55d402132afa4b9dd38aa69e50ec7b7efb1927c
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 <dirent.h> 18#include <errno.h> 19#include <fcntl.h> 20#include <libgen.h> 21#include <limits.h> 22#include <memory> 23#include <regex> 24#include <stdbool.h> 25#include <stdio.h> 26#include <stdlib.h> 27#include <string> 28#include <string.h> 29#include <sys/capability.h> 30#include <sys/prctl.h> 31#include <sys/resource.h> 32#include <sys/stat.h> 33#include <sys/time.h> 34#include <sys/wait.h> 35#include <unistd.h> 36 37#include <android-base/stringprintf.h> 38#include <cutils/properties.h> 39 40#include "private/android_filesystem_config.h" 41 42#define LOG_TAG "dumpstate" 43#include <cutils/log.h> 44 45#include "dumpstate.h" 46#include "ScopedFd.h" 47#include "ziparchive/zip_writer.h" 48 49using android::base::StringPrintf; 50 51/* read before root is shed */ 52static char cmdline_buf[16384] = "(unknown)"; 53static const char *dump_traces_path = NULL; 54 55#define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops" 56 57#define RAFT_DIR "/data/misc/raft/" 58#define TOMBSTONE_DIR "/data/tombstones" 59#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_" 60/* Can accomodate a tombstone number up to 9999. */ 61#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4) 62#define NUM_TOMBSTONES 10 63 64typedef struct { 65 char name[TOMBSTONE_MAX_LEN]; 66 int fd; 67} tombstone_data_t; 68 69static tombstone_data_t tombstone_data[NUM_TOMBSTONES]; 70 71/* Get the fds of any tombstone that was modified in the last half an hour. */ 72static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) { 73 time_t thirty_minutes_ago = time(NULL) - 60*30; 74 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 75 snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i); 76 int fd = TEMP_FAILURE_RETRY(open(data[i].name, 77 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 78 struct stat st; 79 if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) && 80 (time_t) st.st_mtime >= thirty_minutes_ago) { 81 data[i].fd = fd; 82 } else { 83 close(fd); 84 data[i].fd = -1; 85 } 86 } 87} 88 89static void dump_dev_files(const char *title, const char *driverpath, const char *filename) 90{ 91 DIR *d; 92 struct dirent *de; 93 char path[PATH_MAX]; 94 95 d = opendir(driverpath); 96 if (d == NULL) { 97 return; 98 } 99 100 while ((de = readdir(d))) { 101 if (de->d_type != DT_LNK) { 102 continue; 103 } 104 snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename); 105 dump_file(title, path); 106 } 107 108 closedir(d); 109} 110 111static bool skip_not_stat(const char *path) { 112 static const char stat[] = "/stat"; 113 size_t len = strlen(path); 114 if (path[len - 1] == '/') { /* Directory? */ 115 return false; 116 } 117 return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */ 118} 119 120static const char mmcblk0[] = "/sys/block/mmcblk0/"; 121unsigned long worst_write_perf = 20000; /* in KB/s */ 122 123static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) { 124 unsigned long fields[11], read_perf, write_perf; 125 bool z; 126 char *cp, *buffer = NULL; 127 size_t i = 0; 128 FILE *fp = fdopen(fd, "rb"); 129 getline(&buffer, &i, fp); 130 fclose(fp); 131 if (!buffer) { 132 return -errno; 133 } 134 i = strlen(buffer); 135 while ((i > 0) && (buffer[i - 1] == '\n')) { 136 buffer[--i] = '\0'; 137 } 138 if (!*buffer) { 139 free(buffer); 140 return 0; 141 } 142 z = true; 143 for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) { 144 fields[i] = strtol(cp, &cp, 0); 145 if (fields[i] != 0) { 146 z = false; 147 } 148 } 149 if (z) { /* never accessed */ 150 free(buffer); 151 return 0; 152 } 153 154 if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) { 155 path += sizeof(mmcblk0) - 1; 156 } 157 158 printf("%s: %s\n", path, buffer); 159 free(buffer); 160 161 read_perf = 0; 162 if (fields[3]) { 163 read_perf = 512 * fields[2] / fields[3]; 164 } 165 write_perf = 0; 166 if (fields[7]) { 167 write_perf = 512 * fields[6] / fields[7]; 168 } 169 printf("%s: read: %luKB/s write: %luKB/s\n", path, read_perf, write_perf); 170 if ((write_perf > 1) && (write_perf < worst_write_perf)) { 171 worst_write_perf = write_perf; 172 } 173 return 0; 174} 175 176/* Copied policy from system/core/logd/LogBuffer.cpp */ 177 178#define LOG_BUFFER_SIZE (256 * 1024) 179#define LOG_BUFFER_MIN_SIZE (64 * 1024UL) 180#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) 181 182static bool valid_size(unsigned long value) { 183 if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) { 184 return false; 185 } 186 187 long pages = sysconf(_SC_PHYS_PAGES); 188 if (pages < 1) { 189 return true; 190 } 191 192 long pagesize = sysconf(_SC_PAGESIZE); 193 if (pagesize <= 1) { 194 pagesize = PAGE_SIZE; 195 } 196 197 // maximum memory impact a somewhat arbitrary ~3% 198 pages = (pages + 31) / 32; 199 unsigned long maximum = pages * pagesize; 200 201 if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) { 202 return true; 203 } 204 205 return value <= maximum; 206} 207 208static unsigned long property_get_size(const char *key) { 209 unsigned long value; 210 char *cp, property[PROPERTY_VALUE_MAX]; 211 212 property_get(key, property, ""); 213 value = strtoul(property, &cp, 10); 214 215 switch(*cp) { 216 case 'm': 217 case 'M': 218 value *= 1024; 219 /* FALLTHRU */ 220 case 'k': 221 case 'K': 222 value *= 1024; 223 /* FALLTHRU */ 224 case '\0': 225 break; 226 227 default: 228 value = 0; 229 } 230 231 if (!valid_size(value)) { 232 value = 0; 233 } 234 235 return value; 236} 237 238/* timeout in ms */ 239static unsigned long logcat_timeout(const char *name) { 240 static const char global_tuneable[] = "persist.logd.size"; // Settings App 241 static const char global_default[] = "ro.logd.size"; // BoardConfig.mk 242 char key[PROP_NAME_MAX]; 243 unsigned long property_size, default_size; 244 245 default_size = property_get_size(global_tuneable); 246 if (!default_size) { 247 default_size = property_get_size(global_default); 248 } 249 250 snprintf(key, sizeof(key), "%s.%s", global_tuneable, name); 251 property_size = property_get_size(key); 252 253 if (!property_size) { 254 snprintf(key, sizeof(key), "%s.%s", global_default, name); 255 property_size = property_get_size(key); 256 } 257 258 if (!property_size) { 259 property_size = default_size; 260 } 261 262 if (!property_size) { 263 property_size = LOG_BUFFER_SIZE; 264 } 265 266 /* Engineering margin is ten-fold our guess */ 267 return 10 * (property_size + worst_write_perf) / worst_write_perf; 268} 269 270/* End copy from system/core/logd/LogBuffer.cpp */ 271 272/* dumps the current system state to stdout */ 273static void dumpstate(const std::string& screenshot_path) { 274 unsigned long timeout; 275 time_t now = time(NULL); 276 char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; 277 char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; 278 char network[PROPERTY_VALUE_MAX], date[80]; 279 char build_type[PROPERTY_VALUE_MAX]; 280 281 property_get("ro.build.display.id", build, "(unknown)"); 282 property_get("ro.build.fingerprint", fingerprint, "(unknown)"); 283 property_get("ro.build.type", build_type, "(unknown)"); 284 property_get("ro.baseband", radio, "(unknown)"); 285 property_get("ro.bootloader", bootloader, "(unknown)"); 286 property_get("gsm.operator.alpha", network, "(unknown)"); 287 strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); 288 289 printf("========================================================\n"); 290 printf("== dumpstate: %s\n", date); 291 printf("========================================================\n"); 292 293 printf("\n"); 294 printf("Build: %s\n", build); 295 printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */ 296 printf("Bootloader: %s\n", bootloader); 297 printf("Radio: %s\n", radio); 298 printf("Network: %s\n", network); 299 300 printf("Kernel: "); 301 dump_file(NULL, "/proc/version"); 302 printf("Command line: %s\n", strtok(cmdline_buf, "\n")); 303 printf("\n"); 304 305 dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version"); 306 run_command("UPTIME", 10, "uptime", NULL); 307 dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd); 308 dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd"); 309 dump_file("MEMORY INFO", "/proc/meminfo"); 310 run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-H", NULL); 311 run_command("PROCRANK", 20, SU_PATH, "root", "procrank", NULL); 312 dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat"); 313 dump_file("VMALLOC INFO", "/proc/vmallocinfo"); 314 dump_file("SLAB INFO", "/proc/slabinfo"); 315 dump_file("ZONEINFO", "/proc/zoneinfo"); 316 dump_file("PAGETYPEINFO", "/proc/pagetypeinfo"); 317 dump_file("BUDDYINFO", "/proc/buddyinfo"); 318 dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index"); 319 320 dump_file("KERNEL WAKELOCKS", "/proc/wakelocks"); 321 dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources"); 322 dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); 323 dump_file("KERNEL SYNC", "/d/sync"); 324 325 run_command("PROCESSES AND THREADS", 10, "ps", "-Z", "-t", "-p", "-P", NULL); 326 run_command("LIBRANK", 10, SU_PATH, "root", "librank", NULL); 327 328 do_dmesg(); 329 330 run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL); 331 for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES"); 332 for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); 333 334 if (!screenshot_path.empty()) { 335 ALOGI("taking late screenshot\n"); 336 take_screenshot(screenshot_path); 337 ALOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 338 } 339 340 // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); 341 // calculate timeout 342 timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash"); 343 if (timeout < 20000) { 344 timeout = 20000; 345 } 346 run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime", 347 "-v", "printable", 348 "-d", 349 "*:v", NULL); 350 timeout = logcat_timeout("events"); 351 if (timeout < 20000) { 352 timeout = 20000; 353 } 354 run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events", 355 "-v", "threadtime", 356 "-v", "printable", 357 "-d", 358 "*:v", NULL); 359 timeout = logcat_timeout("radio"); 360 if (timeout < 20000) { 361 timeout = 20000; 362 } 363 run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio", 364 "-v", "threadtime", 365 "-v", "printable", 366 "-d", 367 "*:v", NULL); 368 369 run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL); 370 371 run_command("RAFT LOGS", 600, SU_PATH, "root", "logcompressor", "-r", RAFT_DIR, NULL); 372 373 /* show the traces we collected in main(), if that was done */ 374 if (dump_traces_path != NULL) { 375 dump_file("VM TRACES JUST NOW", dump_traces_path); 376 } 377 378 /* only show ANR traces if they're less than 15 minutes old */ 379 struct stat st; 380 char anr_traces_path[PATH_MAX]; 381 property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); 382 if (!anr_traces_path[0]) { 383 printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); 384 } else { 385 int fd = TEMP_FAILURE_RETRY(open(anr_traces_path, 386 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 387 if (fd < 0) { 388 printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); 389 } else { 390 dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd); 391 } 392 } 393 394 /* slow traces for slow operations */ 395 if (anr_traces_path[0] != 0) { 396 int tail = strlen(anr_traces_path)-1; 397 while (tail > 0 && anr_traces_path[tail] != '/') { 398 tail--; 399 } 400 int i = 0; 401 while (1) { 402 sprintf(anr_traces_path+tail+1, "slow%02d.txt", i); 403 if (stat(anr_traces_path, &st)) { 404 // No traces file at this index, done with the files. 405 break; 406 } 407 dump_file("VM TRACES WHEN SLOW", anr_traces_path); 408 i++; 409 } 410 } 411 412 int dumped = 0; 413 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 414 if (tombstone_data[i].fd != -1) { 415 dumped = 1; 416 dump_file_from_fd("TOMBSTONE", tombstone_data[i].name, tombstone_data[i].fd); 417 tombstone_data[i].fd = -1; 418 } 419 } 420 if (!dumped) { 421 printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR); 422 } 423 424 dump_file("NETWORK DEV INFO", "/proc/net/dev"); 425 dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all"); 426 dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt"); 427 dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl"); 428 dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats"); 429 430 if (!stat(PSTORE_LAST_KMSG, &st)) { 431 /* Also TODO: Make console-ramoops CAP_SYSLOG protected. */ 432 dump_file("LAST KMSG", PSTORE_LAST_KMSG); 433 } else { 434 /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */ 435 dump_file("LAST KMSG", "/proc/last_kmsg"); 436 } 437 438 /* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */ 439 run_command("LAST LOGCAT", 10, "logcat", "-L", 440 "-b", "all", 441 "-v", "threadtime", 442 "-v", "printable", 443 "-d", 444 "*:v", NULL); 445 446 /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */ 447 448 run_command("NETWORK INTERFACES", 10, "ip", "link", NULL); 449 450 run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL); 451 run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL); 452 453 run_command("IP RULES", 10, "ip", "rule", "show", NULL); 454 run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL); 455 456 dump_route_tables(); 457 458 run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL); 459 run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL); 460 461 run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL); 462 run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL); 463 run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL); 464 /* no ip6 nat */ 465 run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL); 466 run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL); 467 468 run_command("WIFI NETWORKS", 20, 469 SU_PATH, "root", "wpa_cli", "IFNAME=wlan0", "list_networks", NULL); 470 471#ifdef FWDUMP_bcmdhd 472 run_command("ND OFFLOAD TABLE", 5, 473 SU_PATH, "root", "wlutil", "nd_hostip", NULL); 474 475 run_command("DUMP WIFI INTERNAL COUNTERS (1)", 20, 476 SU_PATH, "root", "wlutil", "counters", NULL); 477 478 run_command("ND OFFLOAD STATUS (1)", 5, 479 SU_PATH, "root", "wlutil", "nd_status", NULL); 480 481#endif 482 dump_file("INTERRUPTS (1)", "/proc/interrupts"); 483 484 run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "connectivity", "--diag", NULL); 485 486#ifdef FWDUMP_bcmdhd 487 run_command("DUMP WIFI STATUS", 20, 488 SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL); 489 490 run_command("DUMP WIFI INTERNAL COUNTERS (2)", 20, 491 SU_PATH, "root", "wlutil", "counters", NULL); 492 493 run_command("ND OFFLOAD STATUS (2)", 5, 494 SU_PATH, "root", "wlutil", "nd_status", NULL); 495#endif 496 dump_file("INTERRUPTS (2)", "/proc/interrupts"); 497 498 print_properties(); 499 500 run_command("VOLD DUMP", 10, "vdc", "dump", NULL); 501 run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); 502 503 run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL); 504 505 run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); 506 507 printf("------ BACKLIGHTS ------\n"); 508 printf("LCD brightness="); 509 dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); 510 printf("Button brightness="); 511 dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); 512 printf("Keyboard brightness="); 513 dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); 514 printf("ALS mode="); 515 dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); 516 printf("LCD driver registers:\n"); 517 dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); 518 printf("\n"); 519 520 /* Binder state is expensive to look at as it uses a lot of memory. */ 521 dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log"); 522 dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log"); 523 dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions"); 524 dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats"); 525 dump_file("BINDER STATE", "/sys/kernel/debug/binder/state"); 526 527 printf("========================================================\n"); 528 printf("== Board\n"); 529 printf("========================================================\n"); 530 531 dumpstate_board(); 532 printf("\n"); 533 534 /* Migrate the ril_dumpstate to a dumpstate_board()? */ 535 char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0}; 536 property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30"); 537 if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) { 538 if (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) { 539 // su does not exist on user builds, so try running without it. 540 // This way any implementations of vril-dump that do not require 541 // root can run on user builds. 542 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 543 "vril-dump", NULL); 544 } else { 545 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 546 SU_PATH, "root", "vril-dump", NULL); 547 } 548 } 549 550 printf("========================================================\n"); 551 printf("== Android Framework Services\n"); 552 printf("========================================================\n"); 553 554 /* the full dumpsys is starting to take a long time, so we need 555 to increase its timeout. we really need to do the timeouts in 556 dumpsys itself... */ 557 run_command("DUMPSYS", 60, "dumpsys", NULL); 558 559 printf("========================================================\n"); 560 printf("== Checkins\n"); 561 printf("========================================================\n"); 562 563 run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "batterystats", "-c", NULL); 564 run_command("CHECKIN MEMINFO", 30, "dumpsys", "meminfo", "--checkin", NULL); 565 run_command("CHECKIN NETSTATS", 30, "dumpsys", "netstats", "--checkin", NULL); 566 run_command("CHECKIN PROCSTATS", 30, "dumpsys", "procstats", "-c", NULL); 567 run_command("CHECKIN USAGESTATS", 30, "dumpsys", "usagestats", "-c", NULL); 568 run_command("CHECKIN PACKAGE", 30, "dumpsys", "package", "--checkin", NULL); 569 570 printf("========================================================\n"); 571 printf("== Running Application Activities\n"); 572 printf("========================================================\n"); 573 574 run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL); 575 576 printf("========================================================\n"); 577 printf("== Running Application Services\n"); 578 printf("========================================================\n"); 579 580 run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL); 581 582 printf("========================================================\n"); 583 printf("== Running Application Providers\n"); 584 printf("========================================================\n"); 585 586 run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL); 587 588 589 printf("========================================================\n"); 590 printf("== dumpstate: done\n"); 591 printf("========================================================\n"); 592} 593 594static void usage() { 595 fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s] [-q]\n" 596 " -o: write to file (instead of stdout)\n" 597 " -d: append date to filename (requires -o)\n" 598 " -z: generates zipped file (requires -o)\n" 599 " -p: capture screenshot to filename.png (requires -o)\n" 600 " -s: write output to control socket (for init)\n" 601 " -b: play sound file instead of vibrate, at beginning of job\n" 602 " -e: play sound file instead of vibrate, at end of job\n" 603 " -q: disable vibrate\n" 604 " -B: send broadcast when finished (requires -o)\n" 605 " -P: send broadacast when started and update system properties on progress (requires -o and -B)\n" 606 ); 607} 608 609static void sigpipe_handler(int n) { 610 // don't complain to stderr or stdout 611 _exit(EXIT_FAILURE); 612} 613 614static void vibrate(FILE* vibrator, int ms) { 615 fprintf(vibrator, "%d\n", ms); 616 fflush(vibrator); 617} 618 619/* generates a zipfile on 'path' with an entry with the contents of 'tmp_path' 620 and removes the temporary file. 621 */ 622static bool generate_zip_file(std::string tmp_path, std::string path, 623 std::string entry_name, time_t entry_time) { 624 std::unique_ptr<FILE, int(*)(FILE*)> file(fopen(path.c_str(), "wb"), fclose); 625 if (!file) { 626 ALOGE("fopen(%s, 'wb'): %s\n", path.c_str(), strerror(errno)); 627 return false; 628 } 629 630 ZipWriter writer(file.get()); 631 int32_t err = writer.StartEntryWithTime(entry_name.c_str(), ZipWriter::kCompress, entry_time); 632 if (err) { 633 ALOGE("writer.StartEntryWithTime(%s): %s\n", entry_name.c_str(), ZipWriter::ErrorCodeString(err)); 634 return false; 635 } 636 637 ScopedFd fd(TEMP_FAILURE_RETRY(open(tmp_path.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC))); 638 if (fd.get() == -1) { 639 ALOGE("open(%s): %s\n", tmp_path.c_str(), strerror(errno)); 640 return false; 641 } 642 643 while (1) { 644 std::vector<uint8_t> buffer(65536); 645 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd.get(), buffer.data(), sizeof(buffer))); 646 if (bytes_read == 0) { 647 break; 648 } else if (bytes_read == -1) { 649 ALOGE("read(%s): %s\n", tmp_path.c_str(), strerror(errno)); 650 return false; 651 } 652 err = writer.WriteBytes(buffer.data(), bytes_read); 653 if (err) { 654 ALOGE("writer.WriteBytes(): %s\n", ZipWriter::ErrorCodeString(err)); 655 return false; 656 } 657 } 658 659 err = writer.FinishEntry(); 660 if (err) { 661 ALOGE("writer.FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 662 return false; 663 } 664 665 err = writer.Finish(); 666 if (err) { 667 ALOGE("writer.Finish(): %s\n", ZipWriter::ErrorCodeString(err)); 668 return false; 669 } 670 671 if (remove(tmp_path.c_str())) { 672 ALOGE("remove(%s): %s\n", tmp_path.c_str(), strerror(errno)); 673 return false; 674 } 675 676 return true; 677} 678 679 680int main(int argc, char *argv[]) { 681 struct sigaction sigact; 682 int do_add_date = 0; 683 int do_zip_file = 0; 684 int do_vibrate = 1; 685 char* use_outfile = 0; 686 int use_socket = 0; 687 int do_fb = 0; 688 int do_broadcast = 0; 689 int do_early_screenshot = 0; 690 691 if (getuid() != 0) { 692 // Old versions of the adb client would call the 693 // dumpstate command directly. Newer clients 694 // call /system/bin/bugreport instead. If we detect 695 // we're being called incorrectly, then exec the 696 // correct program. 697 return execl("/system/bin/bugreport", "/system/bin/bugreport", NULL); 698 } 699 700 ALOGI("begin\n"); 701 702 /* clear SIGPIPE handler */ 703 memset(&sigact, 0, sizeof(sigact)); 704 sigact.sa_handler = sigpipe_handler; 705 sigaction(SIGPIPE, &sigact, NULL); 706 707 /* set as high priority, and protect from OOM killer */ 708 setpriority(PRIO_PROCESS, 0, -20); 709 FILE *oom_adj = fopen("/proc/self/oom_adj", "we"); 710 if (oom_adj) { 711 fputs("-17", oom_adj); 712 fclose(oom_adj); 713 } 714 715 /* parse arguments */ 716 int c; 717 while ((c = getopt(argc, argv, "dho:svqzpPB")) != -1) { 718 switch (c) { 719 case 'd': do_add_date = 1; break; 720 case 'z': do_zip_file = 1; break; 721 case 'o': use_outfile = optarg; break; 722 case 's': use_socket = 1; break; 723 case 'v': break; // compatibility no-op 724 case 'q': do_vibrate = 0; break; 725 case 'p': do_fb = 1; break; 726 case 'P': do_update_progress = 1; break; 727 case 'B': do_broadcast = 1; break; 728 case '?': printf("\n"); 729 case 'h': 730 usage(); 731 exit(1); 732 } 733 } 734 735 if ((do_zip_file || do_add_date || do_update_progress || do_broadcast) && !use_outfile) { 736 usage(); 737 exit(1); 738 } 739 740 if (do_update_progress && !do_broadcast) { 741 usage(); 742 exit(1); 743 } 744 745 do_early_screenshot = do_update_progress; 746 747 // If we are going to use a socket, do it as early as possible 748 // to avoid timeouts from bugreport. 749 if (use_socket) { 750 redirect_to_socket(stdout, "dumpstate"); 751 } 752 753 /* full path of the directory where the bug report files will be written */ 754 std::string bugreport_dir; 755 756 /* full path of the temporary file containing the bug report */ 757 std::string tmp_path; 758 759 /* full path of the temporary file containing the screenshot (when requested) */ 760 std::string screenshot_path; 761 762 /* base name (without suffix or extensions) of the bug report files */ 763 std::string base_name; 764 765 /* suffix of the bug report files - it's typically the date (when invoked with -d), 766 * although it could be changed by the user using a system property */ 767 std::string suffix; 768 769 /* pointer to the actual path, be it zip or text */ 770 std::string path; 771 772 time_t now = time(NULL); 773 774 /* redirect output if needed */ 775 bool is_redirecting = !use_socket && use_outfile; 776 777 if (is_redirecting) { 778 bugreport_dir = dirname(use_outfile); 779 base_name = basename(use_outfile); 780 if (do_add_date) { 781 char date[80]; 782 strftime(date, sizeof(date), "%Y-%m-%d-%H-%M-%S", localtime(&now)); 783 suffix = date; 784 } else { 785 suffix = "undated"; 786 } 787 if (do_fb) { 788 // TODO: if dumpstate was an object, the paths could be internal variables and then 789 // we could have a function to calculate the derived values, such as: 790 // screenshot_path = GetPath(".png"); 791 screenshot_path = bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 792 } 793 tmp_path = bugreport_dir + "/" + base_name + "-" + suffix + ".tmp"; 794 795 ALOGD("Bugreport dir: %s\nBase name: %s\nSuffix: %s\nTemporary path: %s\n" 796 "Screenshot path: %s\n", bugreport_dir.c_str(), base_name.c_str(), suffix.c_str(), 797 tmp_path.c_str(), screenshot_path.c_str()); 798 799 if (do_update_progress) { 800 std::vector<std::string> am_args = { 801 "--receiver-permission", "android.permission.DUMP", 802 "--es", "android.intent.extra.NAME", suffix, 803 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 804 "--ei", "android.intent.extra.MAX", std::to_string(WEIGHT_TOTAL), 805 }; 806 send_broadcast("android.intent.action.BUGREPORT_STARTED", am_args); 807 } 808 } 809 810 /* open the vibrator before dropping root */ 811 std::unique_ptr<FILE, int(*)(FILE*)> vibrator(NULL, fclose); 812 if (do_vibrate) { 813 vibrator.reset(fopen("/sys/class/timed_output/vibrator/enable", "we")); 814 if (vibrator) { 815 vibrate(vibrator.get(), 150); 816 } 817 } 818 819 if (do_fb && do_early_screenshot) { 820 if (screenshot_path.empty()) { 821 // should not have happened 822 ALOGE("INTERNAL ERROR: skipping early screenshot because path was not set"); 823 } else { 824 ALOGI("taking early screenshot\n"); 825 take_screenshot(screenshot_path); 826 ALOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 827 if (chown(screenshot_path.c_str(), AID_SHELL, AID_SHELL)) { 828 ALOGE("Unable to change ownership of screenshot file %s: %s\n", 829 screenshot_path.c_str(), strerror(errno)); 830 } 831 } 832 } 833 834 /* read /proc/cmdline before dropping root */ 835 FILE *cmdline = fopen("/proc/cmdline", "re"); 836 if (cmdline) { 837 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 838 fclose(cmdline); 839 } 840 841 /* collect stack traces from Dalvik and native processes (needs root) */ 842 dump_traces_path = dump_traces(); 843 844 /* Get the tombstone fds here while we are running as root. */ 845 get_tombstone_fds(tombstone_data); 846 847 /* ensure we will keep capabilities when we drop root */ 848 if (prctl(PR_SET_KEEPCAPS, 1) < 0) { 849 ALOGE("prctl(PR_SET_KEEPCAPS) failed: %s\n", strerror(errno)); 850 return -1; 851 } 852 853 /* switch to non-root user and group */ 854 gid_t groups[] = { AID_LOG, AID_SDCARD_R, AID_SDCARD_RW, 855 AID_MOUNT, AID_INET, AID_NET_BW_STATS, AID_READPROC }; 856 if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) { 857 ALOGE("Unable to setgroups, aborting: %s\n", strerror(errno)); 858 return -1; 859 } 860 if (setgid(AID_SHELL) != 0) { 861 ALOGE("Unable to setgid, aborting: %s\n", strerror(errno)); 862 return -1; 863 } 864 if (setuid(AID_SHELL) != 0) { 865 ALOGE("Unable to setuid, aborting: %s\n", strerror(errno)); 866 return -1; 867 } 868 869 struct __user_cap_header_struct capheader; 870 struct __user_cap_data_struct capdata[2]; 871 memset(&capheader, 0, sizeof(capheader)); 872 memset(&capdata, 0, sizeof(capdata)); 873 capheader.version = _LINUX_CAPABILITY_VERSION_3; 874 capheader.pid = 0; 875 876 capdata[CAP_TO_INDEX(CAP_SYSLOG)].permitted = CAP_TO_MASK(CAP_SYSLOG); 877 capdata[CAP_TO_INDEX(CAP_SYSLOG)].effective = CAP_TO_MASK(CAP_SYSLOG); 878 capdata[0].inheritable = 0; 879 capdata[1].inheritable = 0; 880 881 if (capset(&capheader, &capdata[0]) < 0) { 882 ALOGE("capset failed: %s\n", strerror(errno)); 883 return -1; 884 } 885 886 if (is_redirecting) { 887 /* TODO: rather than generating a text file now and zipping it later, 888 it would be more efficient to redirect stdout to the zip entry 889 directly, but the libziparchive doesn't support that option yet. */ 890 redirect_to_file(stdout, const_cast<char*>(tmp_path.c_str())); 891 } 892 893 dumpstate(do_early_screenshot ? "": screenshot_path); 894 895 /* done */ 896 if (vibrator) { 897 for (int i = 0; i < 3; i++) { 898 vibrate(vibrator.get(), 75); 899 usleep((75 + 50) * 1000); 900 } 901 } 902 903 /* close output if needed */ 904 if (is_redirecting) { 905 fclose(stdout); 906 } 907 908 /* rename or zip the (now complete) .tmp file to its final location */ 909 if (use_outfile) { 910 911 /* check if user changed the suffix using system properties */ 912 char key[PROPERTY_KEY_MAX]; 913 char value[PROPERTY_VALUE_MAX]; 914 sprintf(key, "dumpstate.%d.name", getpid()); 915 property_get(key, value, ""); 916 bool change_suffix= false; 917 if (value[0]) { 918 /* must whitelist which characters are allowed, otherwise it could cross directories */ 919 std::regex valid_regex("^[-_a-zA-Z0-9]+$"); 920 if (std::regex_match(value, valid_regex)) { 921 change_suffix = true; 922 } else { 923 ALOGE("invalid suffix provided by user: %s", value); 924 } 925 } 926 if (change_suffix) { 927 ALOGI("changing suffix from %s to %s", suffix.c_str(), value); 928 suffix = value; 929 if (!screenshot_path.empty()) { 930 std::string new_screenshot_path = 931 bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 932 if (rename(screenshot_path.c_str(), new_screenshot_path.c_str())) { 933 ALOGE("rename(%s, %s): %s\n", screenshot_path.c_str(), 934 new_screenshot_path.c_str(), strerror(errno)); 935 } else { 936 screenshot_path = new_screenshot_path; 937 } 938 } 939 } 940 941 bool do_text_file = true; 942 if (do_zip_file) { 943 ALOGD("Generating .zip bugreport"); 944 path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 945 if (!generate_zip_file(tmp_path, path, base_name + "-" + suffix + ".txt", now)) { 946 ALOGE("Failed to generate zip file; sending text bugreport instead\n"); 947 do_text_file = true; 948 } else { 949 do_text_file = false; 950 } 951 } 952 if (do_text_file) { 953 ALOGD("Generating .txt bugreport"); 954 path = bugreport_dir + "/" + base_name + "-" + suffix + ".txt"; 955 if (rename(tmp_path.c_str(), path.c_str())) { 956 ALOGE("rename(%s, %s): %s\n", tmp_path.c_str(), path.c_str(), strerror(errno)); 957 path.clear(); 958 } 959 } 960 } 961 962 /* tell activity manager we're done */ 963 if (do_broadcast) { 964 if (!path.empty()) { 965 ALOGI("Final bugreport path: %s\n", path.c_str()); 966 std::vector<std::string> am_args = { 967 "--receiver-permission", "android.permission.DUMP", 968 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 969 "--es", "android.intent.extra.BUGREPORT", path 970 }; 971 if (do_fb) { 972 am_args.push_back("--es"); 973 am_args.push_back("android.intent.extra.SCREENSHOT"); 974 am_args.push_back(screenshot_path); 975 } 976 send_broadcast("android.intent.action.BUGREPORT_FINISHED", am_args); 977 } else { 978 ALOGE("Skipping finished broadcast because bugreport could not be generated\n"); 979 } 980 } 981 982 ALOGD("Final progress: %d/%d (originally %d)\n", progress, weight_total, WEIGHT_TOTAL); 983 ALOGI("done\n"); 984 985 return 0; 986} 987