dumpstate.cpp revision fdf52d3697aa0396bd9d8883892937b99a6772a0
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 <set> 25#include <stdbool.h> 26#include <stdio.h> 27#include <stdlib.h> 28#include <string> 29#include <string.h> 30#include <sys/capability.h> 31#include <sys/prctl.h> 32#include <sys/resource.h> 33#include <sys/stat.h> 34#include <sys/time.h> 35#include <sys/wait.h> 36#include <unistd.h> 37 38#include <android-base/stringprintf.h> 39#include <cutils/properties.h> 40 41#include "private/android_filesystem_config.h" 42 43#define LOG_TAG "dumpstate" 44#include <cutils/log.h> 45 46#include "dumpstate.h" 47#include "ScopedFd.h" 48#include "ziparchive/zip_writer.h" 49 50#include "mincrypt/sha256.h" 51 52using android::base::StringPrintf; 53 54/* read before root is shed */ 55static char cmdline_buf[16384] = "(unknown)"; 56static const char *dump_traces_path = NULL; 57 58// TODO: should be part of dumpstate object 59static char build_type[PROPERTY_VALUE_MAX]; 60static time_t now; 61static std::unique_ptr<ZipWriter> zip_writer; 62static std::set<std::string> mount_points; 63void add_mountinfo(); 64static bool add_zip_entry(const std::string& entry_name, const std::string& entry_path); 65 66#define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops" 67 68#define RAFT_DIR "/data/misc/raft/" 69#define RECOVERY_DIR "/cache/recovery" 70#define TOMBSTONE_DIR "/data/tombstones" 71#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_" 72/* Can accomodate a tombstone number up to 9999. */ 73#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4) 74#define NUM_TOMBSTONES 10 75 76typedef struct { 77 char name[TOMBSTONE_MAX_LEN]; 78 int fd; 79} tombstone_data_t; 80 81static tombstone_data_t tombstone_data[NUM_TOMBSTONES]; 82 83// Root dir for all files copied as-is into the bugreport 84const std::string& ZIP_ROOT_DIR = "FS"; 85 86/* 87 * List of supported zip format versions. 88 * 89 * See bugreport-format.txt for more info. 90 */ 91// TODO: change to "v1" before final N build 92static std::string VERSION_DEFAULT = "v1-dev1"; 93// TODO: remove before final N build 94static std::string VERSION_DUMPSYS_SPLIT = "v1-dev1-dumpsys-split"; 95 96/* gets the tombstone data, according to the bugreport type: if zipped gets all tombstones, 97 * otherwise gets just those modified in the last half an hour. */ 98static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) { 99 time_t thirty_minutes_ago = now - 60*30; 100 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 101 snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i); 102 int fd = TEMP_FAILURE_RETRY(open(data[i].name, 103 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 104 struct stat st; 105 if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) && 106 (zip_writer || (time_t) st.st_mtime >= thirty_minutes_ago)) { 107 data[i].fd = fd; 108 } else { 109 close(fd); 110 data[i].fd = -1; 111 } 112 } 113} 114 115// for_each_pid() callback to get mount info about a process. 116void do_mountinfo(int pid, const char *name) { 117 char path[PATH_MAX]; 118 119 // Gets the the content of the /proc/PID/ns/mnt link, so only unique mount points 120 // are added. 121 sprintf(path, "/proc/%d/ns/mnt", pid); 122 char linkname[PATH_MAX]; 123 ssize_t r = readlink(path, linkname, PATH_MAX); 124 if (r == -1) { 125 MYLOGE("Unable to read link for %s: %s\n", path, strerror(errno)); 126 return; 127 } 128 linkname[r] = '\0'; 129 130 if (mount_points.find(linkname) == mount_points.end()) { 131 // First time this mount point was found: add it 132 sprintf(path, "/proc/%d/mountinfo", pid); 133 if (add_zip_entry(ZIP_ROOT_DIR + path, path)) { 134 mount_points.insert(linkname); 135 } else { 136 MYLOGE("Unable to add mountinfo %s to zip file\n", path); 137 } 138 } 139} 140 141void add_mountinfo() { 142 if (!zip_writer) return; 143 const char *title = "MOUNT INFO"; 144 mount_points.clear(); 145 DurationReporter duration_reporter(title, NULL); 146 for_each_pid(do_mountinfo, NULL); 147 MYLOGD("%s: %d entries added to zip file\n", title, (int) mount_points.size()); 148} 149 150static void dump_dev_files(const char *title, const char *driverpath, const char *filename) 151{ 152 DIR *d; 153 struct dirent *de; 154 char path[PATH_MAX]; 155 156 d = opendir(driverpath); 157 if (d == NULL) { 158 return; 159 } 160 161 while ((de = readdir(d))) { 162 if (de->d_type != DT_LNK) { 163 continue; 164 } 165 snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename); 166 dump_file(title, path); 167 } 168 169 closedir(d); 170} 171 172static bool skip_not_stat(const char *path) { 173 static const char stat[] = "/stat"; 174 size_t len = strlen(path); 175 if (path[len - 1] == '/') { /* Directory? */ 176 return false; 177 } 178 return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */ 179} 180 181static bool skip_none(const char *path) { 182 return false; 183} 184 185static const char mmcblk0[] = "/sys/block/mmcblk0/"; 186unsigned long worst_write_perf = 20000; /* in KB/s */ 187 188// 189// stat offsets 190// Name units description 191// ---- ----- ----------- 192// read I/Os requests number of read I/Os processed 193#define __STAT_READ_IOS 0 194// read merges requests number of read I/Os merged with in-queue I/O 195#define __STAT_READ_MERGES 1 196// read sectors sectors number of sectors read 197#define __STAT_READ_SECTORS 2 198// read ticks milliseconds total wait time for read requests 199#define __STAT_READ_TICKS 3 200// write I/Os requests number of write I/Os processed 201#define __STAT_WRITE_IOS 4 202// write merges requests number of write I/Os merged with in-queue I/O 203#define __STAT_WRITE_MERGES 5 204// write sectors sectors number of sectors written 205#define __STAT_WRITE_SECTORS 6 206// write ticks milliseconds total wait time for write requests 207#define __STAT_WRITE_TICKS 7 208// in_flight requests number of I/Os currently in flight 209#define __STAT_IN_FLIGHT 8 210// io_ticks milliseconds total time this block device has been active 211#define __STAT_IO_TICKS 9 212// time_in_queue milliseconds total wait time for all requests 213#define __STAT_IN_QUEUE 10 214#define __STAT_NUMBER_FIELD 11 215// 216// read I/Os, write I/Os 217// ===================== 218// 219// These values increment when an I/O request completes. 220// 221// read merges, write merges 222// ========================= 223// 224// These values increment when an I/O request is merged with an 225// already-queued I/O request. 226// 227// read sectors, write sectors 228// =========================== 229// 230// These values count the number of sectors read from or written to this 231// block device. The "sectors" in question are the standard UNIX 512-byte 232// sectors, not any device- or filesystem-specific block size. The 233// counters are incremented when the I/O completes. 234#define SECTOR_SIZE 512 235// 236// read ticks, write ticks 237// ======================= 238// 239// These values count the number of milliseconds that I/O requests have 240// waited on this block device. If there are multiple I/O requests waiting, 241// these values will increase at a rate greater than 1000/second; for 242// example, if 60 read requests wait for an average of 30 ms, the read_ticks 243// field will increase by 60*30 = 1800. 244// 245// in_flight 246// ========= 247// 248// This value counts the number of I/O requests that have been issued to 249// the device driver but have not yet completed. It does not include I/O 250// requests that are in the queue but not yet issued to the device driver. 251// 252// io_ticks 253// ======== 254// 255// This value counts the number of milliseconds during which the device has 256// had I/O requests queued. 257// 258// time_in_queue 259// ============= 260// 261// This value counts the number of milliseconds that I/O requests have waited 262// on this block device. If there are multiple I/O requests waiting, this 263// value will increase as the product of the number of milliseconds times the 264// number of requests waiting (see "read ticks" above for an example). 265#define S_TO_MS 1000 266// 267 268static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) { 269 unsigned long long fields[__STAT_NUMBER_FIELD]; 270 bool z; 271 char *cp, *buffer = NULL; 272 size_t i = 0; 273 FILE *fp = fdopen(fd, "rb"); 274 getline(&buffer, &i, fp); 275 fclose(fp); 276 if (!buffer) { 277 return -errno; 278 } 279 i = strlen(buffer); 280 while ((i > 0) && (buffer[i - 1] == '\n')) { 281 buffer[--i] = '\0'; 282 } 283 if (!*buffer) { 284 free(buffer); 285 return 0; 286 } 287 z = true; 288 for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) { 289 fields[i] = strtoull(cp, &cp, 10); 290 if (fields[i] != 0) { 291 z = false; 292 } 293 } 294 if (z) { /* never accessed */ 295 free(buffer); 296 return 0; 297 } 298 299 if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) { 300 path += sizeof(mmcblk0) - 1; 301 } 302 303 printf("%s: %s\n", path, buffer); 304 free(buffer); 305 306 if (fields[__STAT_IO_TICKS]) { 307 unsigned long read_perf = 0; 308 unsigned long read_ios = 0; 309 if (fields[__STAT_READ_TICKS]) { 310 unsigned long long divisor = fields[__STAT_READ_TICKS] 311 * fields[__STAT_IO_TICKS]; 312 read_perf = ((unsigned long long)SECTOR_SIZE 313 * fields[__STAT_READ_SECTORS] 314 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 315 / divisor; 316 read_ios = ((unsigned long long)S_TO_MS * fields[__STAT_READ_IOS] 317 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 318 / divisor; 319 } 320 321 unsigned long write_perf = 0; 322 unsigned long write_ios = 0; 323 if (fields[__STAT_WRITE_TICKS]) { 324 unsigned long long divisor = fields[__STAT_WRITE_TICKS] 325 * fields[__STAT_IO_TICKS]; 326 write_perf = ((unsigned long long)SECTOR_SIZE 327 * fields[__STAT_WRITE_SECTORS] 328 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 329 / divisor; 330 write_ios = ((unsigned long long)S_TO_MS * fields[__STAT_WRITE_IOS] 331 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 332 / divisor; 333 } 334 335 unsigned queue = (fields[__STAT_IN_QUEUE] 336 + (fields[__STAT_IO_TICKS] >> 1)) 337 / fields[__STAT_IO_TICKS]; 338 339 if (!write_perf && !write_ios) { 340 printf("%s: perf(ios) rd: %luKB/s(%lu/s) q: %u\n", 341 path, read_perf, read_ios, queue); 342 } else { 343 printf("%s: perf(ios) rd: %luKB/s(%lu/s) wr: %luKB/s(%lu/s) q: %u\n", 344 path, read_perf, read_ios, write_perf, write_ios, queue); 345 } 346 347 /* bugreport timeout factor adjustment */ 348 if ((write_perf > 1) && (write_perf < worst_write_perf)) { 349 worst_write_perf = write_perf; 350 } 351 } 352 return 0; 353} 354 355/* Copied policy from system/core/logd/LogBuffer.cpp */ 356 357#define LOG_BUFFER_SIZE (256 * 1024) 358#define LOG_BUFFER_MIN_SIZE (64 * 1024UL) 359#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) 360 361static bool valid_size(unsigned long value) { 362 if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) { 363 return false; 364 } 365 366 long pages = sysconf(_SC_PHYS_PAGES); 367 if (pages < 1) { 368 return true; 369 } 370 371 long pagesize = sysconf(_SC_PAGESIZE); 372 if (pagesize <= 1) { 373 pagesize = PAGE_SIZE; 374 } 375 376 // maximum memory impact a somewhat arbitrary ~3% 377 pages = (pages + 31) / 32; 378 unsigned long maximum = pages * pagesize; 379 380 if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) { 381 return true; 382 } 383 384 return value <= maximum; 385} 386 387static unsigned long property_get_size(const char *key) { 388 unsigned long value; 389 char *cp, property[PROPERTY_VALUE_MAX]; 390 391 property_get(key, property, ""); 392 value = strtoul(property, &cp, 10); 393 394 switch(*cp) { 395 case 'm': 396 case 'M': 397 value *= 1024; 398 /* FALLTHRU */ 399 case 'k': 400 case 'K': 401 value *= 1024; 402 /* FALLTHRU */ 403 case '\0': 404 break; 405 406 default: 407 value = 0; 408 } 409 410 if (!valid_size(value)) { 411 value = 0; 412 } 413 414 return value; 415} 416 417/* timeout in ms */ 418static unsigned long logcat_timeout(const char *name) { 419 static const char global_tuneable[] = "persist.logd.size"; // Settings App 420 static const char global_default[] = "ro.logd.size"; // BoardConfig.mk 421 char key[PROP_NAME_MAX]; 422 unsigned long property_size, default_size; 423 424 default_size = property_get_size(global_tuneable); 425 if (!default_size) { 426 default_size = property_get_size(global_default); 427 } 428 429 snprintf(key, sizeof(key), "%s.%s", global_tuneable, name); 430 property_size = property_get_size(key); 431 432 if (!property_size) { 433 snprintf(key, sizeof(key), "%s.%s", global_default, name); 434 property_size = property_get_size(key); 435 } 436 437 if (!property_size) { 438 property_size = default_size; 439 } 440 441 if (!property_size) { 442 property_size = LOG_BUFFER_SIZE; 443 } 444 445 /* Engineering margin is ten-fold our guess */ 446 return 10 * (property_size + worst_write_perf) / worst_write_perf; 447} 448 449/* End copy from system/core/logd/LogBuffer.cpp */ 450 451/* dumps the current system state to stdout */ 452static void print_header(std::string version) { 453 char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; 454 char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; 455 char network[PROPERTY_VALUE_MAX], date[80]; 456 457 property_get("ro.build.display.id", build, "(unknown)"); 458 property_get("ro.build.fingerprint", fingerprint, "(unknown)"); 459 property_get("ro.build.type", build_type, "(unknown)"); 460 property_get("ro.baseband", radio, "(unknown)"); 461 property_get("ro.bootloader", bootloader, "(unknown)"); 462 property_get("gsm.operator.alpha", network, "(unknown)"); 463 strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); 464 465 printf("========================================================\n"); 466 printf("== dumpstate: %s\n", date); 467 printf("========================================================\n"); 468 469 printf("\n"); 470 printf("Build: %s\n", build); 471 printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */ 472 printf("Bootloader: %s\n", bootloader); 473 printf("Radio: %s\n", radio); 474 printf("Network: %s\n", network); 475 476 printf("Kernel: "); 477 dump_file(NULL, "/proc/version"); 478 printf("Command line: %s\n", strtok(cmdline_buf, "\n")); 479 printf("Bugreport format version: %s\n", version.c_str()); 480 printf("\n"); 481} 482 483/* adds a new entry to the existing zip file. */ 484static bool add_zip_entry_from_fd(const std::string& entry_name, int fd) { 485 if (!zip_writer) { 486 MYLOGD("Not adding zip entry %s from fd because zip_writer is not set\n", entry_name.c_str()); 487 return false; 488 } 489 MYLOGD("Adding zip entry %s\n", entry_name.c_str()); 490 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), 491 ZipWriter::kCompress, get_mtime(fd, now)); 492 if (err) { 493 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 494 ZipWriter::ErrorCodeString(err)); 495 return false; 496 } 497 498 std::vector<uint8_t> buffer(65536); 499 while (1) { 500 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer.data(), sizeof(buffer))); 501 if (bytes_read == 0) { 502 break; 503 } else if (bytes_read == -1) { 504 MYLOGE("read(%s): %s\n", entry_name.c_str(), strerror(errno)); 505 return false; 506 } 507 err = zip_writer->WriteBytes(buffer.data(), bytes_read); 508 if (err) { 509 MYLOGE("zip_writer->WriteBytes(): %s\n", ZipWriter::ErrorCodeString(err)); 510 return false; 511 } 512 } 513 514 err = zip_writer->FinishEntry(); 515 if (err) { 516 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 517 return false; 518 } 519 520 return true; 521} 522 523/* adds a new entry to the existing zip file. */ 524static bool add_zip_entry(const std::string& entry_name, const std::string& entry_path) { 525 ScopedFd fd(TEMP_FAILURE_RETRY(open(entry_path.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC))); 526 if (fd.get() == -1) { 527 MYLOGE("open(%s): %s\n", entry_path.c_str(), strerror(errno)); 528 return false; 529 } 530 531 return add_zip_entry_from_fd(entry_name, fd.get()); 532} 533 534/* adds a file to the existing zipped bugreport */ 535static int _add_file_from_fd(const char *title, const char *path, int fd) { 536 return add_zip_entry_from_fd(ZIP_ROOT_DIR + path, fd) ? 0 : 1; 537} 538 539/* adds all files from a directory to the zipped bugreport file */ 540void add_dir(const char *dir, bool recursive) { 541 if (!zip_writer) { 542 MYLOGD("Not adding dir %s because zip_writer is not set\n", dir); 543 return; 544 } 545 DurationReporter duration_reporter(dir, NULL); 546 dump_files(NULL, dir, recursive ? skip_none : is_dir, _add_file_from_fd); 547} 548 549/* adds a text entry entry to the existing zip file. */ 550static bool add_text_zip_entry(const std::string& entry_name, const std::string& content) { 551 if (!zip_writer) { 552 MYLOGD("Not adding text zip entry %s because zip_writer is not set\n", entry_name.c_str()); 553 return false; 554 } 555 MYLOGD("Adding zip text entry %s\n", entry_name.c_str()); 556 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), ZipWriter::kCompress, now); 557 if (err) { 558 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 559 ZipWriter::ErrorCodeString(err)); 560 return false; 561 } 562 563 err = zip_writer->WriteBytes(content.c_str(), content.length()); 564 if (err) { 565 MYLOGE("zip_writer->WriteBytes(%s): %s\n", entry_name.c_str(), 566 ZipWriter::ErrorCodeString(err)); 567 return false; 568 } 569 570 err = zip_writer->FinishEntry(); 571 if (err) { 572 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 573 return false; 574 } 575 576 return true; 577} 578 579static void dumpstate(const std::string& screenshot_path, const std::string& version) { 580 DurationReporter duration_reporter("DUMPSTATE"); 581 unsigned long timeout; 582 583 dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version"); 584 run_command("UPTIME", 10, "uptime", NULL); 585 dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd); 586 dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd"); 587 dump_file("MEMORY INFO", "/proc/meminfo"); 588 run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-H", NULL); 589 run_command("PROCRANK", 20, SU_PATH, "root", "procrank", NULL); 590 dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat"); 591 dump_file("VMALLOC INFO", "/proc/vmallocinfo"); 592 dump_file("SLAB INFO", "/proc/slabinfo"); 593 dump_file("ZONEINFO", "/proc/zoneinfo"); 594 dump_file("PAGETYPEINFO", "/proc/pagetypeinfo"); 595 dump_file("BUDDYINFO", "/proc/buddyinfo"); 596 dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index"); 597 598 dump_file("KERNEL WAKELOCKS", "/proc/wakelocks"); 599 dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources"); 600 dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); 601 dump_file("KERNEL SYNC", "/d/sync"); 602 603 run_command("PROCESSES AND THREADS", 10, "ps", "-Z", "-t", "-p", "-P", NULL); 604 run_command("LIBRANK", 10, SU_PATH, "root", "librank", NULL); 605 606 run_command("ROUTE", 10, "route", NULL); 607 run_command("PRINTENV", 10, "printenv", NULL); 608 run_command("NETSTAT", 10, "netstat", NULL); 609 run_command("LSMOD", 10, "lsmod", NULL); 610 611 do_dmesg(); 612 613 run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL); 614 for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES"); 615 for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); 616 for_each_pid(show_showtime, "PROCESS TIMES (pid cmd user system iowait+percentage)"); 617 618 if (!screenshot_path.empty()) { 619 MYLOGI("taking late screenshot\n"); 620 take_screenshot(screenshot_path); 621 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 622 } 623 624 // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); 625 // calculate timeout 626 timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash"); 627 if (timeout < 20000) { 628 timeout = 20000; 629 } 630 run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime", 631 "-v", "printable", 632 "-d", 633 "*:v", NULL); 634 timeout = logcat_timeout("events"); 635 if (timeout < 20000) { 636 timeout = 20000; 637 } 638 run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events", 639 "-v", "threadtime", 640 "-v", "printable", 641 "-d", 642 "*:v", NULL); 643 timeout = logcat_timeout("radio"); 644 if (timeout < 20000) { 645 timeout = 20000; 646 } 647 run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio", 648 "-v", "threadtime", 649 "-v", "printable", 650 "-d", 651 "*:v", NULL); 652 653 run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL); 654 655 run_command("RAFT LOGS", 600, SU_PATH, "root", "logcompressor", "-r", RAFT_DIR, NULL); 656 657 /* show the traces we collected in main(), if that was done */ 658 if (dump_traces_path != NULL) { 659 dump_file("VM TRACES JUST NOW", dump_traces_path); 660 } 661 662 /* only show ANR traces if they're less than 15 minutes old */ 663 struct stat st; 664 char anr_traces_path[PATH_MAX]; 665 property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); 666 if (!anr_traces_path[0]) { 667 printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); 668 } else { 669 int fd = TEMP_FAILURE_RETRY(open(anr_traces_path, 670 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 671 if (fd < 0) { 672 printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); 673 } else { 674 dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd); 675 } 676 } 677 678 /* slow traces for slow operations */ 679 if (anr_traces_path[0] != 0) { 680 int tail = strlen(anr_traces_path)-1; 681 while (tail > 0 && anr_traces_path[tail] != '/') { 682 tail--; 683 } 684 int i = 0; 685 while (1) { 686 sprintf(anr_traces_path+tail+1, "slow%02d.txt", i); 687 if (stat(anr_traces_path, &st)) { 688 // No traces file at this index, done with the files. 689 break; 690 } 691 dump_file("VM TRACES WHEN SLOW", anr_traces_path); 692 i++; 693 } 694 } 695 696 int dumped = 0; 697 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 698 if (tombstone_data[i].fd != -1) { 699 const char *name = tombstone_data[i].name; 700 int fd = tombstone_data[i].fd; 701 dumped = 1; 702 if (zip_writer) { 703 if (!add_zip_entry_from_fd(ZIP_ROOT_DIR + name, fd)) { 704 MYLOGE("Unable to add tombstone %s to zip file\n", name); 705 } 706 } else { 707 dump_file_from_fd("TOMBSTONE", name, fd); 708 } 709 close(fd); 710 tombstone_data[i].fd = -1; 711 } 712 } 713 if (!dumped) { 714 printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR); 715 } 716 717 dump_file("NETWORK DEV INFO", "/proc/net/dev"); 718 dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all"); 719 dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt"); 720 dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl"); 721 dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats"); 722 723 if (!stat(PSTORE_LAST_KMSG, &st)) { 724 /* Also TODO: Make console-ramoops CAP_SYSLOG protected. */ 725 dump_file("LAST KMSG", PSTORE_LAST_KMSG); 726 } else { 727 /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */ 728 dump_file("LAST KMSG", "/proc/last_kmsg"); 729 } 730 731 /* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */ 732 run_command("LAST LOGCAT", 10, "logcat", "-L", 733 "-b", "all", 734 "-v", "threadtime", 735 "-v", "printable", 736 "-d", 737 "*:v", NULL); 738 739 /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */ 740 741 run_command("NETWORK INTERFACES", 10, "ip", "link", NULL); 742 743 run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL); 744 run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL); 745 746 run_command("IP RULES", 10, "ip", "rule", "show", NULL); 747 run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL); 748 749 dump_route_tables(); 750 751 run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL); 752 run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL); 753 754 run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL); 755 run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL); 756 run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL); 757 /* no ip6 nat */ 758 run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL); 759 run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL); 760 761 run_command("WIFI NETWORKS", 20, 762 SU_PATH, "root", "wpa_cli", "IFNAME=wlan0", "list_networks", NULL); 763 764#ifdef FWDUMP_bcmdhd 765 run_command("ND OFFLOAD TABLE", 5, 766 SU_PATH, "root", "wlutil", "nd_hostip", NULL); 767 768 run_command("DUMP WIFI INTERNAL COUNTERS (1)", 20, 769 SU_PATH, "root", "wlutil", "counters", NULL); 770 771 run_command("ND OFFLOAD STATUS (1)", 5, 772 SU_PATH, "root", "wlutil", "nd_status", NULL); 773 774#endif 775 dump_file("INTERRUPTS (1)", "/proc/interrupts"); 776 777 run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "connectivity", "--diag", NULL); 778 779#ifdef FWDUMP_bcmdhd 780 run_command("DUMP WIFI STATUS", 20, 781 SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL); 782 783 run_command("DUMP WIFI INTERNAL COUNTERS (2)", 20, 784 SU_PATH, "root", "wlutil", "counters", NULL); 785 786 run_command("ND OFFLOAD STATUS (2)", 5, 787 SU_PATH, "root", "wlutil", "nd_status", NULL); 788#endif 789 dump_file("INTERRUPTS (2)", "/proc/interrupts"); 790 791 print_properties(); 792 793 run_command("VOLD DUMP", 10, "vdc", "dump", NULL); 794 run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); 795 796 run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL); 797 798 run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); 799 800 printf("------ BACKLIGHTS ------\n"); 801 printf("LCD brightness="); 802 dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); 803 printf("Button brightness="); 804 dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); 805 printf("Keyboard brightness="); 806 dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); 807 printf("ALS mode="); 808 dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); 809 printf("LCD driver registers:\n"); 810 dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); 811 printf("\n"); 812 813 /* Binder state is expensive to look at as it uses a lot of memory. */ 814 dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log"); 815 dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log"); 816 dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions"); 817 dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats"); 818 dump_file("BINDER STATE", "/sys/kernel/debug/binder/state"); 819 820 printf("========================================================\n"); 821 printf("== Board\n"); 822 printf("========================================================\n"); 823 824 dumpstate_board(); 825 printf("\n"); 826 827 /* Migrate the ril_dumpstate to a dumpstate_board()? */ 828 char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0}; 829 property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30"); 830 if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) { 831 if (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) { 832 // su does not exist on user builds, so try running without it. 833 // This way any implementations of vril-dump that do not require 834 // root can run on user builds. 835 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 836 "vril-dump", NULL); 837 } else { 838 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 839 SU_PATH, "root", "vril-dump", NULL); 840 } 841 } 842 843 printf("========================================================\n"); 844 printf("== Android Framework Services\n"); 845 printf("========================================================\n"); 846 847 /* the full dumpsys is starting to take a long time, so we need 848 to increase its timeout. we really need to do the timeouts in 849 dumpsys itself... */ 850 if (version == VERSION_DUMPSYS_SPLIT) { 851 // Skipping meminfo and cpuinfo services. 852 run_command("DUMPSYS", 60, "dumpsys", "--skip", "meminfo,cpuinfo", NULL); 853 } else { 854 run_command("DUMPSYS", 60, "dumpsys", NULL); 855 } 856 857 printf("========================================================\n"); 858 printf("== Checkins\n"); 859 printf("========================================================\n"); 860 861 run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "batterystats", "-c", NULL); 862 run_command("CHECKIN MEMINFO", 30, "dumpsys", "meminfo", "--checkin", NULL); 863 run_command("CHECKIN NETSTATS", 30, "dumpsys", "netstats", "--checkin", NULL); 864 run_command("CHECKIN PROCSTATS", 30, "dumpsys", "procstats", "-c", NULL); 865 run_command("CHECKIN USAGESTATS", 30, "dumpsys", "usagestats", "-c", NULL); 866 run_command("CHECKIN PACKAGE", 30, "dumpsys", "package", "--checkin", NULL); 867 868 printf("========================================================\n"); 869 printf("== Running Application Activities\n"); 870 printf("========================================================\n"); 871 872 run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL); 873 874 printf("========================================================\n"); 875 printf("== Running Application Services\n"); 876 printf("========================================================\n"); 877 878 run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL); 879 880 printf("========================================================\n"); 881 printf("== Running Application Providers\n"); 882 printf("========================================================\n"); 883 884 run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL); 885 886 887 printf("========================================================\n"); 888 printf("== Final progress (pid %d): %d/%d (originally %d)\n", 889 getpid(), progress, weight_total, WEIGHT_TOTAL); 890 printf("========================================================\n"); 891 printf("== dumpstate: done\n"); 892 printf("========================================================\n"); 893} 894 895static void usage() { 896 fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s] [-q] [-B] [-P] [-R] [-V version]\n" 897 " -b: play sound file instead of vibrate, at beginning of job\n" 898 " -e: play sound file instead of vibrate, at end of job\n" 899 " -o: write to file (instead of stdout)\n" 900 " -d: append date to filename (requires -o)\n" 901 " -p: capture screenshot to filename.png (requires -o)\n" 902 " -z: generates zipped file (requires -o)\n" 903 " -s: write output to control socket (for init)\n" 904 " -q: disable vibrate\n" 905 " -B: send broadcast when finished (requires -o)\n" 906 " -P: send broadcast when started and update system properties on progress (requires -o and -B)\n" 907 " -R: take bugreport in remote mode (requires -o, -z, -d and -B, shouldn't be used with -P)\n" 908 " -V: sets the bugreport format version (%s or %s)\n", 909 VERSION_DEFAULT.c_str(), VERSION_DUMPSYS_SPLIT.c_str()); 910} 911 912static void sigpipe_handler(int n) { 913 // don't complain to stderr or stdout 914 _exit(EXIT_FAILURE); 915} 916 917/* adds the temporary report to the existing .zip file, closes the .zip file, and removes the 918 temporary file. 919 */ 920static bool finish_zip_file(const std::string& bugreport_name, const std::string& bugreport_path, 921 time_t now) { 922 if (!add_zip_entry(bugreport_name, bugreport_path)) { 923 MYLOGE("Failed to add text entry to .zip file\n"); 924 return false; 925 } 926 if (!add_text_zip_entry("main_entry.txt", bugreport_name)) { 927 MYLOGE("Failed to add main_entry.txt to .zip file\n"); 928 return false; 929 } 930 931 int32_t err = zip_writer->Finish(); 932 if (err) { 933 MYLOGE("zip_writer->Finish(): %s\n", ZipWriter::ErrorCodeString(err)); 934 return false; 935 } 936 937 return true; 938} 939 940static std::string SHA256_file_hash(std::string filepath) { 941 ScopedFd fd(TEMP_FAILURE_RETRY(open(filepath.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC 942 | O_NOFOLLOW))); 943 if (fd.get() == -1) { 944 MYLOGE("open(%s): %s\n", filepath.c_str(), strerror(errno)); 945 return NULL; 946 } 947 948 SHA256_CTX ctx; 949 SHA256_init(&ctx); 950 951 std::vector<uint8_t> buffer(65536); 952 while (1) { 953 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd.get(), buffer.data(), buffer.size())); 954 if (bytes_read == 0) { 955 break; 956 } else if (bytes_read == -1) { 957 MYLOGE("read(%s): %s\n", filepath.c_str(), strerror(errno)); 958 return NULL; 959 } 960 961 SHA256_update(&ctx, buffer.data(), bytes_read); 962 } 963 964 uint8_t hash[SHA256_DIGEST_SIZE]; 965 memcpy(hash, SHA256_final(&ctx), SHA256_DIGEST_SIZE); 966 char hash_buffer[SHA256_DIGEST_SIZE * 2 + 1]; 967 for(size_t i = 0; i < SHA256_DIGEST_SIZE; i++) { 968 sprintf(hash_buffer + (i * 2), "%02x", hash[i]); 969 } 970 hash_buffer[sizeof(hash_buffer) - 1] = 0; 971 return std::string(hash_buffer); 972} 973 974/* switch to non-root user and group */ 975bool drop_root() { 976 /* ensure we will keep capabilities when we drop root */ 977 if (prctl(PR_SET_KEEPCAPS, 1) < 0) { 978 MYLOGE("prctl(PR_SET_KEEPCAPS) failed: %s\n", strerror(errno)); 979 return false; 980 } 981 982 gid_t groups[] = { AID_LOG, AID_SDCARD_R, AID_SDCARD_RW, 983 AID_MOUNT, AID_INET, AID_NET_BW_STATS, AID_READPROC }; 984 if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) { 985 MYLOGE("Unable to setgroups, aborting: %s\n", strerror(errno)); 986 return false; 987 } 988 if (setgid(AID_SHELL) != 0) { 989 MYLOGE("Unable to setgid, aborting: %s\n", strerror(errno)); 990 return false; 991 } 992 if (setuid(AID_SHELL) != 0) { 993 MYLOGE("Unable to setuid, aborting: %s\n", strerror(errno)); 994 return false; 995 } 996 997 struct __user_cap_header_struct capheader; 998 struct __user_cap_data_struct capdata[2]; 999 memset(&capheader, 0, sizeof(capheader)); 1000 memset(&capdata, 0, sizeof(capdata)); 1001 capheader.version = _LINUX_CAPABILITY_VERSION_3; 1002 capheader.pid = 0; 1003 1004 capdata[CAP_TO_INDEX(CAP_SYSLOG)].permitted = CAP_TO_MASK(CAP_SYSLOG); 1005 capdata[CAP_TO_INDEX(CAP_SYSLOG)].effective = CAP_TO_MASK(CAP_SYSLOG); 1006 capdata[0].inheritable = 0; 1007 capdata[1].inheritable = 0; 1008 1009 if (capset(&capheader, &capdata[0]) < 0) { 1010 MYLOGE("capset failed: %s\n", strerror(errno)); 1011 return false; 1012 } 1013 1014 return true; 1015} 1016 1017int main(int argc, char *argv[]) { 1018 struct sigaction sigact; 1019 int do_add_date = 0; 1020 int do_zip_file = 0; 1021 int do_vibrate = 1; 1022 char* use_outfile = 0; 1023 int use_socket = 0; 1024 int do_fb = 0; 1025 int do_broadcast = 0; 1026 int do_early_screenshot = 0; 1027 int is_remote_mode = 0; 1028 std::string version = VERSION_DEFAULT; 1029 1030 now = time(NULL); 1031 1032 if (getuid() != 0) { 1033 // Old versions of the adb client would call the 1034 // dumpstate command directly. Newer clients 1035 // call /system/bin/bugreport instead. If we detect 1036 // we're being called incorrectly, then exec the 1037 // correct program. 1038 return execl("/system/bin/bugreport", "/system/bin/bugreport", NULL); 1039 } 1040 1041 MYLOGI("begin\n"); 1042 1043 /* clear SIGPIPE handler */ 1044 memset(&sigact, 0, sizeof(sigact)); 1045 sigact.sa_handler = sigpipe_handler; 1046 sigaction(SIGPIPE, &sigact, NULL); 1047 1048 /* set as high priority, and protect from OOM killer */ 1049 setpriority(PRIO_PROCESS, 0, -20); 1050 FILE *oom_adj = fopen("/proc/self/oom_adj", "we"); 1051 if (oom_adj) { 1052 fputs("-17", oom_adj); 1053 fclose(oom_adj); 1054 } 1055 1056 /* parse arguments */ 1057 int c; 1058 while ((c = getopt(argc, argv, "dho:svqzpPBRV:")) != -1) { 1059 switch (c) { 1060 case 'd': do_add_date = 1; break; 1061 case 'z': do_zip_file = 1; break; 1062 case 'o': use_outfile = optarg; break; 1063 case 's': use_socket = 1; break; 1064 case 'v': break; // compatibility no-op 1065 case 'q': do_vibrate = 0; break; 1066 case 'p': do_fb = 1; break; 1067 case 'P': do_update_progress = 1; break; 1068 case 'R': is_remote_mode = 1; break; 1069 case 'B': do_broadcast = 1; break; 1070 case 'V': version = optarg; break; 1071 case '?': printf("\n"); 1072 case 'h': 1073 usage(); 1074 exit(1); 1075 } 1076 } 1077 1078 if ((do_zip_file || do_add_date || do_update_progress || do_broadcast) && !use_outfile) { 1079 usage(); 1080 exit(1); 1081 } 1082 1083 if (do_update_progress && !do_broadcast) { 1084 usage(); 1085 exit(1); 1086 } 1087 1088 if (is_remote_mode && (do_update_progress || !do_broadcast || !do_zip_file || !do_add_date)) { 1089 usage(); 1090 exit(1); 1091 } 1092 1093 if (version != VERSION_DEFAULT && version != VERSION_DUMPSYS_SPLIT) { 1094 usage(); 1095 exit(1); 1096 } 1097 1098 MYLOGI("bugreport format version: %s\n", version.c_str()); 1099 1100 do_early_screenshot = do_update_progress; 1101 1102 // If we are going to use a socket, do it as early as possible 1103 // to avoid timeouts from bugreport. 1104 if (use_socket) { 1105 redirect_to_socket(stdout, "dumpstate"); 1106 } 1107 1108 /* full path of the directory where the bugreport files will be written */ 1109 std::string bugreport_dir; 1110 1111 /* full path of the temporary file containing the bugreport */ 1112 std::string tmp_path; 1113 1114 /* full path of the file containing the dumpstate logs*/ 1115 std::string log_path; 1116 1117 /* full path of the temporary file containing the screenshot (when requested) */ 1118 std::string screenshot_path; 1119 1120 /* base name (without suffix or extensions) of the bugreport files */ 1121 std::string base_name; 1122 1123 /* suffix of the bugreport files - it's typically the date (when invoked with -d), 1124 * although it could be changed by the user using a system property */ 1125 std::string suffix; 1126 1127 /* pointer to the actual path, be it zip or text */ 1128 std::string path; 1129 1130 /* pointer to the zipped file */ 1131 std::unique_ptr<FILE, int(*)(FILE*)> zip_file(NULL, fclose); 1132 1133 /* redirect output if needed */ 1134 bool is_redirecting = !use_socket && use_outfile; 1135 1136 if (is_redirecting) { 1137 bugreport_dir = dirname(use_outfile); 1138 base_name = basename(use_outfile); 1139 if (do_add_date) { 1140 char date[80]; 1141 strftime(date, sizeof(date), "%Y-%m-%d-%H-%M-%S", localtime(&now)); 1142 suffix = date; 1143 } else { 1144 suffix = "undated"; 1145 } 1146 if (do_fb) { 1147 // TODO: if dumpstate was an object, the paths could be internal variables and then 1148 // we could have a function to calculate the derived values, such as: 1149 // screenshot_path = GetPath(".png"); 1150 screenshot_path = bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1151 } 1152 tmp_path = bugreport_dir + "/" + base_name + "-" + suffix + ".tmp"; 1153 log_path = bugreport_dir + "/dumpstate_log-" + suffix + "-" 1154 + std::to_string(getpid()) + ".txt"; 1155 1156 MYLOGD("Bugreport dir: %s\n" 1157 "Base name: %s\n" 1158 "Suffix: %s\n" 1159 "Log path: %s\n" 1160 "Temporary path: %s\n" 1161 "Screenshot path: %s\n", 1162 bugreport_dir.c_str(), base_name.c_str(), suffix.c_str(), 1163 log_path.c_str(), tmp_path.c_str(), screenshot_path.c_str()); 1164 1165 if (do_zip_file) { 1166 MYLOGD("Creating initial .zip file\n"); 1167 path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1168 create_parent_dirs(path.c_str()); 1169 zip_file.reset(fopen(path.c_str(), "wb")); 1170 if (!zip_file) { 1171 MYLOGE("fopen(%s, 'wb'): %s\n", path.c_str(), strerror(errno)); 1172 do_zip_file = 0; 1173 } else { 1174 zip_writer.reset(new ZipWriter(zip_file.get())); 1175 } 1176 add_text_zip_entry("version.txt", version); 1177 } 1178 1179 if (do_update_progress) { 1180 std::vector<std::string> am_args = { 1181 "--receiver-permission", "android.permission.DUMP", 1182 "--es", "android.intent.extra.NAME", suffix, 1183 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1184 "--ei", "android.intent.extra.MAX", std::to_string(WEIGHT_TOTAL), 1185 }; 1186 send_broadcast("android.intent.action.BUGREPORT_STARTED", am_args); 1187 } 1188 } 1189 1190 /* read /proc/cmdline before dropping root */ 1191 FILE *cmdline = fopen("/proc/cmdline", "re"); 1192 if (cmdline) { 1193 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 1194 fclose(cmdline); 1195 } 1196 1197 /* open the vibrator before dropping root */ 1198 std::unique_ptr<FILE, int(*)(FILE*)> vibrator(NULL, fclose); 1199 if (do_vibrate) { 1200 vibrator.reset(fopen("/sys/class/timed_output/vibrator/enable", "we")); 1201 if (vibrator) { 1202 vibrate(vibrator.get(), 150); 1203 } 1204 } 1205 1206 if (do_fb && do_early_screenshot) { 1207 if (screenshot_path.empty()) { 1208 // should not have happened 1209 MYLOGE("INTERNAL ERROR: skipping early screenshot because path was not set\n"); 1210 } else { 1211 MYLOGI("taking early screenshot\n"); 1212 take_screenshot(screenshot_path); 1213 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 1214 if (chown(screenshot_path.c_str(), AID_SHELL, AID_SHELL)) { 1215 MYLOGE("Unable to change ownership of screenshot file %s: %s\n", 1216 screenshot_path.c_str(), strerror(errno)); 1217 } 1218 } 1219 } 1220 1221 if (do_zip_file) { 1222 if (chown(path.c_str(), AID_SHELL, AID_SHELL)) { 1223 MYLOGE("Unable to change ownership of zip file %s: %s\n", path.c_str(), strerror(errno)); 1224 } 1225 } 1226 1227 if (is_redirecting) { 1228 redirect_to_file(stderr, const_cast<char*>(log_path.c_str())); 1229 /* TODO: rather than generating a text file now and zipping it later, 1230 it would be more efficient to redirect stdout to the zip entry 1231 directly, but the libziparchive doesn't support that option yet. */ 1232 redirect_to_file(stdout, const_cast<char*>(tmp_path.c_str())); 1233 } 1234 // NOTE: there should be no stdout output until now, otherwise it would break the header. 1235 // In particular, DurationReport objects should be created passing 'title, NULL', so their 1236 // duration is logged into MYLOG instead. 1237 print_header(version); 1238 1239 if (version == VERSION_DUMPSYS_SPLIT) { 1240 // Invoking the following dumpsys calls before dump_traces() to try and 1241 // keep the system stats as close to its initial state as possible. 1242 run_command("DUMPSYS MEMINFO", 30, SU_PATH, "2000", "dumpsys", "meminfo", "-a", NULL); 1243 run_command("DUMPSYS CPUINFO", 30, SU_PATH, "2000", "dumpsys", "cpuinfo", "-a", NULL); 1244 } 1245 1246 /* collect stack traces from Dalvik and native processes (needs root) */ 1247 dump_traces_path = dump_traces(); 1248 1249 /* Get the tombstone fds, recovery files, and mount info here while we are running as root. */ 1250 get_tombstone_fds(tombstone_data); 1251 add_dir(RECOVERY_DIR, true); 1252 add_mountinfo(); 1253 1254 if (!drop_root()) { 1255 return -1; 1256 } 1257 1258 dumpstate(do_early_screenshot ? "": screenshot_path, version); 1259 1260 /* done */ 1261 if (vibrator) { 1262 for (int i = 0; i < 3; i++) { 1263 vibrate(vibrator.get(), 75); 1264 usleep((75 + 50) * 1000); 1265 } 1266 } 1267 1268 /* close output if needed */ 1269 if (is_redirecting) { 1270 fclose(stdout); 1271 fclose(stderr); 1272 } 1273 1274 /* rename or zip the (now complete) .tmp file to its final location */ 1275 if (use_outfile) { 1276 1277 /* check if user changed the suffix using system properties */ 1278 char key[PROPERTY_KEY_MAX]; 1279 char value[PROPERTY_VALUE_MAX]; 1280 sprintf(key, "dumpstate.%d.name", getpid()); 1281 property_get(key, value, ""); 1282 bool change_suffix= false; 1283 if (value[0]) { 1284 /* must whitelist which characters are allowed, otherwise it could cross directories */ 1285 std::regex valid_regex("^[-_a-zA-Z0-9]+$"); 1286 if (std::regex_match(value, valid_regex)) { 1287 change_suffix = true; 1288 } else { 1289 MYLOGE("invalid suffix provided by user: %s\n", value); 1290 } 1291 } 1292 if (change_suffix) { 1293 MYLOGI("changing suffix from %s to %s\n", suffix.c_str(), value); 1294 suffix = value; 1295 if (!screenshot_path.empty()) { 1296 std::string new_screenshot_path = 1297 bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1298 if (rename(screenshot_path.c_str(), new_screenshot_path.c_str())) { 1299 MYLOGE("rename(%s, %s): %s\n", screenshot_path.c_str(), 1300 new_screenshot_path.c_str(), strerror(errno)); 1301 } else { 1302 screenshot_path = new_screenshot_path; 1303 } 1304 } 1305 } 1306 1307 bool do_text_file = true; 1308 if (do_zip_file) { 1309 MYLOGD("Adding text entry to .zip bugreport\n"); 1310 if (!finish_zip_file(base_name + "-" + suffix + ".txt", tmp_path, now)) { 1311 MYLOGE("Failed to finish zip file; sending text bugreport instead\n"); 1312 do_text_file = true; 1313 } else { 1314 do_text_file = false; 1315 } 1316 } 1317 if (do_text_file) { 1318 MYLOGD("Generating .txt bugreport\n"); 1319 path = bugreport_dir + "/" + base_name + "-" + suffix + ".txt"; 1320 if (rename(tmp_path.c_str(), path.c_str())) { 1321 MYLOGE("rename(%s, %s): %s\n", tmp_path.c_str(), path.c_str(), strerror(errno)); 1322 path.clear(); 1323 } 1324 } 1325 } 1326 1327 /* tell activity manager we're done */ 1328 if (do_broadcast) { 1329 if (!path.empty()) { 1330 MYLOGI("Final bugreport path: %s\n", path.c_str()); 1331 std::vector<std::string> am_args = { 1332 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1333 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1334 "--es", "android.intent.extra.BUGREPORT", path, 1335 "--es", "android.intent.extra.DUMPSTATE_LOG", log_path 1336 }; 1337 if (do_fb) { 1338 am_args.push_back("--es"); 1339 am_args.push_back("android.intent.extra.SCREENSHOT"); 1340 am_args.push_back(screenshot_path); 1341 } 1342 if (is_remote_mode) { 1343 am_args.push_back("--es"); 1344 am_args.push_back("android.intent.extra.REMOTE_BUGREPORT_HASH"); 1345 am_args.push_back(SHA256_file_hash(path)); 1346 send_broadcast("android.intent.action.REMOTE_BUGREPORT_FINISHED", am_args); 1347 } else { 1348 send_broadcast("android.intent.action.BUGREPORT_FINISHED", am_args); 1349 } 1350 } else { 1351 MYLOGE("Skipping finished broadcast because bugreport could not be generated\n"); 1352 } 1353 } 1354 1355 MYLOGD("Final progress: %d/%d (originally %d)\n", progress, weight_total, WEIGHT_TOTAL); 1356 MYLOGI("done\n"); 1357 1358 return 0; 1359} 1360