dumpstate.cpp revision 4d42dea08915ccbb61ca05903af5330d02d66755
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/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 49#include "mincrypt/sha256.h" 50 51using android::base::StringPrintf; 52 53/* read before root is shed */ 54static char cmdline_buf[16384] = "(unknown)"; 55static const char *dump_traces_path = NULL; 56 57// TODO: should be part of dumpstate object 58static unsigned long id; 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); 65static bool add_zip_entry_from_fd(const std::string& entry_name, int fd); 66 67#define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops" 68 69#define RAFT_DIR "/data/misc/raft/" 70#define RECOVERY_DIR "/cache/recovery" 71#define RECOVERY_DATA_DIR "/data/misc/recovery" 72#define LOGPERSIST_DATA_DIR "/data/misc/logd" 73#define TOMBSTONE_DIR "/data/tombstones" 74#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_" 75/* Can accomodate a tombstone number up to 9999. */ 76#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4) 77#define NUM_TOMBSTONES 10 78 79typedef struct { 80 char name[TOMBSTONE_MAX_LEN]; 81 int fd; 82} tombstone_data_t; 83 84static tombstone_data_t tombstone_data[NUM_TOMBSTONES]; 85 86// Root dir for all files copied as-is into the bugreport 87const std::string& ZIP_ROOT_DIR = "FS"; 88 89/* 90 * List of supported zip format versions. 91 * 92 * See bugreport-format.txt for more info. 93 */ 94// TODO: change to "v1" before final N build 95static std::string VERSION_DEFAULT = "v1-dev3"; 96static std::string VERSION_BUILD_ON_NAME = "v1-dev4"; 97 98/* gets the tombstone data, according to the bugreport type: if zipped gets all tombstones, 99 * otherwise gets just those modified in the last half an hour. */ 100static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) { 101 time_t thirty_minutes_ago = now - 60*30; 102 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 103 snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i); 104 int fd = TEMP_FAILURE_RETRY(open(data[i].name, 105 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 106 struct stat st; 107 if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) && 108 (zip_writer || (time_t) st.st_mtime >= thirty_minutes_ago)) { 109 data[i].fd = fd; 110 } else { 111 close(fd); 112 data[i].fd = -1; 113 } 114 } 115} 116 117// for_each_pid() callback to get mount info about a process. 118void do_mountinfo(int pid, const char *name) { 119 char path[PATH_MAX]; 120 121 // Gets the the content of the /proc/PID/ns/mnt link, so only unique mount points 122 // are added. 123 sprintf(path, "/proc/%d/ns/mnt", pid); 124 char linkname[PATH_MAX]; 125 ssize_t r = readlink(path, linkname, PATH_MAX); 126 if (r == -1) { 127 MYLOGE("Unable to read link for %s: %s\n", path, strerror(errno)); 128 return; 129 } 130 linkname[r] = '\0'; 131 132 if (mount_points.find(linkname) == mount_points.end()) { 133 // First time this mount point was found: add it 134 sprintf(path, "/proc/%d/mountinfo", pid); 135 if (add_zip_entry(ZIP_ROOT_DIR + path, path)) { 136 mount_points.insert(linkname); 137 } else { 138 MYLOGE("Unable to add mountinfo %s to zip file\n", path); 139 } 140 } 141} 142 143void add_mountinfo() { 144 if (!zip_writer) return; 145 const char *title = "MOUNT INFO"; 146 mount_points.clear(); 147 DurationReporter duration_reporter(title, NULL); 148 for_each_pid(do_mountinfo, NULL); 149 MYLOGD("%s: %d entries added to zip file\n", title, (int) mount_points.size()); 150} 151 152static void dump_dev_files(const char *title, const char *driverpath, const char *filename) 153{ 154 DIR *d; 155 struct dirent *de; 156 char path[PATH_MAX]; 157 158 d = opendir(driverpath); 159 if (d == NULL) { 160 return; 161 } 162 163 while ((de = readdir(d))) { 164 if (de->d_type != DT_LNK) { 165 continue; 166 } 167 snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename); 168 dump_file(title, path); 169 } 170 171 closedir(d); 172} 173 174static void dump_systrace(const std::string& systrace_path) { 175 if (!zip_writer) { 176 MYLOGD("Not dumping systrace because zip_writer is not set\n"); 177 return; 178 } 179 if (systrace_path.empty()) { 180 MYLOGE("Not dumping systrace because path is empty\n"); 181 return; 182 } 183 const char* path = "/sys/kernel/debug/tracing/tracing_on"; 184 long int is_tracing; 185 if (read_file_as_long(path, &is_tracing)) { 186 return; // error already logged 187 } 188 if (is_tracing <= 0) { 189 MYLOGD("Skipping systrace because '%s' content is '%ld'\n", path, is_tracing); 190 return; 191 } 192 193 MYLOGD("Running '/system/bin/atrace --async_dump -o %s', which can take several minutes", 194 systrace_path.c_str()); 195 if (run_command("SYSTRACE", 120, "/system/bin/atrace", "--async_dump", "-o", 196 systrace_path.c_str(), NULL)) { 197 MYLOGE("systrace timed out, its zip entry will be incomplete\n"); 198 // TODO: run_command tries to kill the process, but atrace doesn't die peacefully; ideally, 199 // we should call strace to stop itself, but there is no such option yet (just a 200 // --async_stop, which stops and dump 201 // if (run_command("SYSTRACE", 10, "/system/bin/atrace", "--kill", NULL)) { 202 // MYLOGE("could not stop systrace "); 203 // } 204 } 205 if (!add_zip_entry("systrace.txt", systrace_path)) { 206 MYLOGE("Unable to add systrace file %s to zip file\n", systrace_path.c_str()); 207 } else { 208 if (remove(systrace_path.c_str())) { 209 MYLOGE("Error removing systrace file %s: %s", systrace_path.c_str(), strerror(errno)); 210 } 211 } 212} 213 214static bool skip_not_stat(const char *path) { 215 static const char stat[] = "/stat"; 216 size_t len = strlen(path); 217 if (path[len - 1] == '/') { /* Directory? */ 218 return false; 219 } 220 return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */ 221} 222 223static bool skip_none(const char *path) { 224 return false; 225} 226 227static const char mmcblk0[] = "/sys/block/mmcblk0/"; 228unsigned long worst_write_perf = 20000; /* in KB/s */ 229 230// 231// stat offsets 232// Name units description 233// ---- ----- ----------- 234// read I/Os requests number of read I/Os processed 235#define __STAT_READ_IOS 0 236// read merges requests number of read I/Os merged with in-queue I/O 237#define __STAT_READ_MERGES 1 238// read sectors sectors number of sectors read 239#define __STAT_READ_SECTORS 2 240// read ticks milliseconds total wait time for read requests 241#define __STAT_READ_TICKS 3 242// write I/Os requests number of write I/Os processed 243#define __STAT_WRITE_IOS 4 244// write merges requests number of write I/Os merged with in-queue I/O 245#define __STAT_WRITE_MERGES 5 246// write sectors sectors number of sectors written 247#define __STAT_WRITE_SECTORS 6 248// write ticks milliseconds total wait time for write requests 249#define __STAT_WRITE_TICKS 7 250// in_flight requests number of I/Os currently in flight 251#define __STAT_IN_FLIGHT 8 252// io_ticks milliseconds total time this block device has been active 253#define __STAT_IO_TICKS 9 254// time_in_queue milliseconds total wait time for all requests 255#define __STAT_IN_QUEUE 10 256#define __STAT_NUMBER_FIELD 11 257// 258// read I/Os, write I/Os 259// ===================== 260// 261// These values increment when an I/O request completes. 262// 263// read merges, write merges 264// ========================= 265// 266// These values increment when an I/O request is merged with an 267// already-queued I/O request. 268// 269// read sectors, write sectors 270// =========================== 271// 272// These values count the number of sectors read from or written to this 273// block device. The "sectors" in question are the standard UNIX 512-byte 274// sectors, not any device- or filesystem-specific block size. The 275// counters are incremented when the I/O completes. 276#define SECTOR_SIZE 512 277// 278// read ticks, write ticks 279// ======================= 280// 281// These values count the number of milliseconds that I/O requests have 282// waited on this block device. If there are multiple I/O requests waiting, 283// these values will increase at a rate greater than 1000/second; for 284// example, if 60 read requests wait for an average of 30 ms, the read_ticks 285// field will increase by 60*30 = 1800. 286// 287// in_flight 288// ========= 289// 290// This value counts the number of I/O requests that have been issued to 291// the device driver but have not yet completed. It does not include I/O 292// requests that are in the queue but not yet issued to the device driver. 293// 294// io_ticks 295// ======== 296// 297// This value counts the number of milliseconds during which the device has 298// had I/O requests queued. 299// 300// time_in_queue 301// ============= 302// 303// This value counts the number of milliseconds that I/O requests have waited 304// on this block device. If there are multiple I/O requests waiting, this 305// value will increase as the product of the number of milliseconds times the 306// number of requests waiting (see "read ticks" above for an example). 307#define S_TO_MS 1000 308// 309 310static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) { 311 unsigned long long fields[__STAT_NUMBER_FIELD]; 312 bool z; 313 char *cp, *buffer = NULL; 314 size_t i = 0; 315 FILE *fp = fdopen(fd, "rb"); 316 getline(&buffer, &i, fp); 317 fclose(fp); 318 if (!buffer) { 319 return -errno; 320 } 321 i = strlen(buffer); 322 while ((i > 0) && (buffer[i - 1] == '\n')) { 323 buffer[--i] = '\0'; 324 } 325 if (!*buffer) { 326 free(buffer); 327 return 0; 328 } 329 z = true; 330 for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) { 331 fields[i] = strtoull(cp, &cp, 10); 332 if (fields[i] != 0) { 333 z = false; 334 } 335 } 336 if (z) { /* never accessed */ 337 free(buffer); 338 return 0; 339 } 340 341 if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) { 342 path += sizeof(mmcblk0) - 1; 343 } 344 345 printf("%s: %s\n", path, buffer); 346 free(buffer); 347 348 if (fields[__STAT_IO_TICKS]) { 349 unsigned long read_perf = 0; 350 unsigned long read_ios = 0; 351 if (fields[__STAT_READ_TICKS]) { 352 unsigned long long divisor = fields[__STAT_READ_TICKS] 353 * fields[__STAT_IO_TICKS]; 354 read_perf = ((unsigned long long)SECTOR_SIZE 355 * fields[__STAT_READ_SECTORS] 356 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 357 / divisor; 358 read_ios = ((unsigned long long)S_TO_MS * fields[__STAT_READ_IOS] 359 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 360 / divisor; 361 } 362 363 unsigned long write_perf = 0; 364 unsigned long write_ios = 0; 365 if (fields[__STAT_WRITE_TICKS]) { 366 unsigned long long divisor = fields[__STAT_WRITE_TICKS] 367 * fields[__STAT_IO_TICKS]; 368 write_perf = ((unsigned long long)SECTOR_SIZE 369 * fields[__STAT_WRITE_SECTORS] 370 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 371 / divisor; 372 write_ios = ((unsigned long long)S_TO_MS * fields[__STAT_WRITE_IOS] 373 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 374 / divisor; 375 } 376 377 unsigned queue = (fields[__STAT_IN_QUEUE] 378 + (fields[__STAT_IO_TICKS] >> 1)) 379 / fields[__STAT_IO_TICKS]; 380 381 if (!write_perf && !write_ios) { 382 printf("%s: perf(ios) rd: %luKB/s(%lu/s) q: %u\n", 383 path, read_perf, read_ios, queue); 384 } else { 385 printf("%s: perf(ios) rd: %luKB/s(%lu/s) wr: %luKB/s(%lu/s) q: %u\n", 386 path, read_perf, read_ios, write_perf, write_ios, queue); 387 } 388 389 /* bugreport timeout factor adjustment */ 390 if ((write_perf > 1) && (write_perf < worst_write_perf)) { 391 worst_write_perf = write_perf; 392 } 393 } 394 return 0; 395} 396 397/* Copied policy from system/core/logd/LogBuffer.cpp */ 398 399#define LOG_BUFFER_SIZE (256 * 1024) 400#define LOG_BUFFER_MIN_SIZE (64 * 1024UL) 401#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) 402 403static bool valid_size(unsigned long value) { 404 if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) { 405 return false; 406 } 407 408 long pages = sysconf(_SC_PHYS_PAGES); 409 if (pages < 1) { 410 return true; 411 } 412 413 long pagesize = sysconf(_SC_PAGESIZE); 414 if (pagesize <= 1) { 415 pagesize = PAGE_SIZE; 416 } 417 418 // maximum memory impact a somewhat arbitrary ~3% 419 pages = (pages + 31) / 32; 420 unsigned long maximum = pages * pagesize; 421 422 if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) { 423 return true; 424 } 425 426 return value <= maximum; 427} 428 429static unsigned long property_get_size(const char *key) { 430 unsigned long value; 431 char *cp, property[PROPERTY_VALUE_MAX]; 432 433 property_get(key, property, ""); 434 value = strtoul(property, &cp, 10); 435 436 switch(*cp) { 437 case 'm': 438 case 'M': 439 value *= 1024; 440 /* FALLTHRU */ 441 case 'k': 442 case 'K': 443 value *= 1024; 444 /* FALLTHRU */ 445 case '\0': 446 break; 447 448 default: 449 value = 0; 450 } 451 452 if (!valid_size(value)) { 453 value = 0; 454 } 455 456 return value; 457} 458 459/* timeout in ms */ 460static unsigned long logcat_timeout(const char *name) { 461 static const char global_tuneable[] = "persist.logd.size"; // Settings App 462 static const char global_default[] = "ro.logd.size"; // BoardConfig.mk 463 char key[PROP_NAME_MAX]; 464 unsigned long property_size, default_size; 465 466 default_size = property_get_size(global_tuneable); 467 if (!default_size) { 468 default_size = property_get_size(global_default); 469 } 470 471 snprintf(key, sizeof(key), "%s.%s", global_tuneable, name); 472 property_size = property_get_size(key); 473 474 if (!property_size) { 475 snprintf(key, sizeof(key), "%s.%s", global_default, name); 476 property_size = property_get_size(key); 477 } 478 479 if (!property_size) { 480 property_size = default_size; 481 } 482 483 if (!property_size) { 484 property_size = LOG_BUFFER_SIZE; 485 } 486 487 /* Engineering margin is ten-fold our guess */ 488 return 10 * (property_size + worst_write_perf) / worst_write_perf; 489} 490 491/* End copy from system/core/logd/LogBuffer.cpp */ 492 493/* dumps the current system state to stdout */ 494static void print_header(std::string version) { 495 char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; 496 char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; 497 char network[PROPERTY_VALUE_MAX], date[80]; 498 499 property_get("ro.build.display.id", build, "(unknown)"); 500 property_get("ro.build.fingerprint", fingerprint, "(unknown)"); 501 property_get("ro.build.type", build_type, "(unknown)"); 502 property_get("ro.baseband", radio, "(unknown)"); 503 property_get("ro.bootloader", bootloader, "(unknown)"); 504 property_get("gsm.operator.alpha", network, "(unknown)"); 505 strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); 506 507 printf("========================================================\n"); 508 printf("== dumpstate: %s\n", date); 509 printf("========================================================\n"); 510 511 printf("\n"); 512 printf("Build: %s\n", build); 513 printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */ 514 printf("Bootloader: %s\n", bootloader); 515 printf("Radio: %s\n", radio); 516 printf("Network: %s\n", network); 517 518 printf("Kernel: "); 519 dump_file(NULL, "/proc/version"); 520 printf("Command line: %s\n", strtok(cmdline_buf, "\n")); 521 printf("Bugreport format version: %s\n", version.c_str()); 522 printf("Dumpstate info: id=%lu pid=%d\n", id, getpid()); 523 printf("\n"); 524} 525 526/* adds a new entry to the existing zip file. */ 527static bool add_zip_entry_from_fd(const std::string& entry_name, int fd) { 528 if (!zip_writer) { 529 MYLOGD("Not adding zip entry %s from fd because zip_writer is not set\n", 530 entry_name.c_str()); 531 return false; 532 } 533 // Logging statement below is useful to time how long each entry takes, but it's too verbose. 534 // MYLOGD("Adding zip entry %s\n", entry_name.c_str()); 535 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), 536 ZipWriter::kCompress, get_mtime(fd, now)); 537 if (err) { 538 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 539 ZipWriter::ErrorCodeString(err)); 540 return false; 541 } 542 543 std::vector<uint8_t> buffer(65536); 544 while (1) { 545 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer.data(), sizeof(buffer))); 546 if (bytes_read == 0) { 547 break; 548 } else if (bytes_read == -1) { 549 MYLOGE("read(%s): %s\n", entry_name.c_str(), strerror(errno)); 550 return false; 551 } 552 err = zip_writer->WriteBytes(buffer.data(), bytes_read); 553 if (err) { 554 MYLOGE("zip_writer->WriteBytes(): %s\n", ZipWriter::ErrorCodeString(err)); 555 return false; 556 } 557 } 558 559 err = zip_writer->FinishEntry(); 560 if (err) { 561 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 562 return false; 563 } 564 565 return true; 566} 567 568/* adds a new entry to the existing zip file. */ 569static bool add_zip_entry(const std::string& entry_name, const std::string& entry_path) { 570 ScopedFd fd(TEMP_FAILURE_RETRY(open(entry_path.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC))); 571 if (fd.get() == -1) { 572 MYLOGE("open(%s): %s\n", entry_path.c_str(), strerror(errno)); 573 return false; 574 } 575 576 return add_zip_entry_from_fd(entry_name, fd.get()); 577} 578 579/* adds a file to the existing zipped bugreport */ 580static int _add_file_from_fd(const char *title, const char *path, int fd) { 581 return add_zip_entry_from_fd(ZIP_ROOT_DIR + path, fd) ? 0 : 1; 582} 583 584/* adds all files from a directory to the zipped bugreport file */ 585void add_dir(const char *dir, bool recursive) { 586 if (!zip_writer) { 587 MYLOGD("Not adding dir %s because zip_writer is not set\n", dir); 588 return; 589 } 590 MYLOGD("Adding dir %s (recursive: %d)\n", dir, recursive); 591 DurationReporter duration_reporter(dir, NULL); 592 dump_files(NULL, dir, recursive ? skip_none : is_dir, _add_file_from_fd); 593} 594 595/* adds a text entry entry to the existing zip file. */ 596static bool add_text_zip_entry(const std::string& entry_name, const std::string& content) { 597 if (!zip_writer) { 598 MYLOGD("Not adding text zip entry %s because zip_writer is not set\n", entry_name.c_str()); 599 return false; 600 } 601 MYLOGD("Adding zip text entry %s\n", entry_name.c_str()); 602 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), ZipWriter::kCompress, now); 603 if (err) { 604 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 605 ZipWriter::ErrorCodeString(err)); 606 return false; 607 } 608 609 err = zip_writer->WriteBytes(content.c_str(), content.length()); 610 if (err) { 611 MYLOGE("zip_writer->WriteBytes(%s): %s\n", entry_name.c_str(), 612 ZipWriter::ErrorCodeString(err)); 613 return false; 614 } 615 616 err = zip_writer->FinishEntry(); 617 if (err) { 618 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 619 return false; 620 } 621 622 return true; 623} 624 625static void dumpstate(const std::string& screenshot_path, const std::string& version) { 626 DurationReporter duration_reporter("DUMPSTATE"); 627 unsigned long timeout; 628 629 dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version"); 630 run_command("UPTIME", 10, "uptime", NULL); 631 dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd); 632 dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd"); 633 dump_file("MEMORY INFO", "/proc/meminfo"); 634 run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-H", NULL); 635 run_command("PROCRANK", 20, SU_PATH, "root", "procrank", NULL); 636 dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat"); 637 dump_file("VMALLOC INFO", "/proc/vmallocinfo"); 638 dump_file("SLAB INFO", "/proc/slabinfo"); 639 dump_file("ZONEINFO", "/proc/zoneinfo"); 640 dump_file("PAGETYPEINFO", "/proc/pagetypeinfo"); 641 dump_file("BUDDYINFO", "/proc/buddyinfo"); 642 dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index"); 643 644 dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources"); 645 dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); 646 dump_file("KERNEL SYNC", "/d/sync"); 647 648 run_command("PROCESSES AND THREADS", 10, "ps", "-Z", "-t", "-p", "-P", NULL); 649 run_command("LIBRANK", 10, SU_PATH, "root", "librank", NULL); 650 651 run_command("PRINTENV", 10, "printenv", NULL); 652 run_command("NETSTAT", 10, "netstat", "-n", NULL); 653 run_command("LSMOD", 10, "lsmod", NULL); 654 655 do_dmesg(); 656 657 run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL); 658 for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES"); 659 for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); 660 for_each_pid(show_showtime, "PROCESS TIMES (pid cmd user system iowait+percentage)"); 661 662 if (!screenshot_path.empty()) { 663 MYLOGI("taking late screenshot\n"); 664 take_screenshot(screenshot_path); 665 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 666 } 667 668 // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); 669 // calculate timeout 670 timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash"); 671 if (timeout < 20000) { 672 timeout = 20000; 673 } 674 run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime", 675 "-v", "printable", 676 "-d", 677 "*:v", NULL); 678 timeout = logcat_timeout("events"); 679 if (timeout < 20000) { 680 timeout = 20000; 681 } 682 run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events", 683 "-v", "threadtime", 684 "-v", "printable", 685 "-d", 686 "*:v", NULL); 687 timeout = logcat_timeout("radio"); 688 if (timeout < 20000) { 689 timeout = 20000; 690 } 691 run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio", 692 "-v", "threadtime", 693 "-v", "printable", 694 "-d", 695 "*:v", NULL); 696 697 run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL); 698 699 run_command("RAFT LOGS", 600, SU_PATH, "root", "logcompressor", "-r", RAFT_DIR, NULL); 700 701 /* show the traces we collected in main(), if that was done */ 702 if (dump_traces_path != NULL) { 703 dump_file("VM TRACES JUST NOW", dump_traces_path); 704 } 705 706 /* only show ANR traces if they're less than 15 minutes old */ 707 struct stat st; 708 char anr_traces_path[PATH_MAX]; 709 property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); 710 if (!anr_traces_path[0]) { 711 printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); 712 } else { 713 int fd = TEMP_FAILURE_RETRY(open(anr_traces_path, 714 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 715 if (fd < 0) { 716 printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); 717 } else { 718 dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd); 719 } 720 } 721 722 /* slow traces for slow operations */ 723 if (anr_traces_path[0] != 0) { 724 int tail = strlen(anr_traces_path)-1; 725 while (tail > 0 && anr_traces_path[tail] != '/') { 726 tail--; 727 } 728 int i = 0; 729 while (1) { 730 sprintf(anr_traces_path+tail+1, "slow%02d.txt", i); 731 if (stat(anr_traces_path, &st)) { 732 // No traces file at this index, done with the files. 733 break; 734 } 735 dump_file("VM TRACES WHEN SLOW", anr_traces_path); 736 i++; 737 } 738 } 739 740 int dumped = 0; 741 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 742 if (tombstone_data[i].fd != -1) { 743 const char *name = tombstone_data[i].name; 744 int fd = tombstone_data[i].fd; 745 dumped = 1; 746 if (zip_writer) { 747 if (!add_zip_entry_from_fd(ZIP_ROOT_DIR + name, fd)) { 748 MYLOGE("Unable to add tombstone %s to zip file\n", name); 749 } 750 } else { 751 dump_file_from_fd("TOMBSTONE", name, fd); 752 } 753 close(fd); 754 tombstone_data[i].fd = -1; 755 } 756 } 757 if (!dumped) { 758 printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR); 759 } 760 761 dump_file("NETWORK DEV INFO", "/proc/net/dev"); 762 dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all"); 763 dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt"); 764 dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl"); 765 dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats"); 766 767 if (!stat(PSTORE_LAST_KMSG, &st)) { 768 /* Also TODO: Make console-ramoops CAP_SYSLOG protected. */ 769 dump_file("LAST KMSG", PSTORE_LAST_KMSG); 770 } else { 771 /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */ 772 dump_file("LAST KMSG", "/proc/last_kmsg"); 773 } 774 775 /* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */ 776 run_command("LAST LOGCAT", 10, "logcat", "-L", 777 "-b", "all", 778 "-v", "threadtime", 779 "-v", "printable", 780 "-d", 781 "*:v", NULL); 782 783 /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */ 784 785 run_command("NETWORK INTERFACES", 10, "ip", "link", NULL); 786 787 run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL); 788 run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL); 789 790 run_command("IP RULES", 10, "ip", "rule", "show", NULL); 791 run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL); 792 793 dump_route_tables(); 794 795 run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL); 796 run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL); 797 798 run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL); 799 run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL); 800 run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL); 801 /* no ip6 nat */ 802 run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL); 803 run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL); 804 805 run_command("WIFI NETWORKS", 20, 806 SU_PATH, "root", "wpa_cli", "IFNAME=wlan0", "list_networks", NULL); 807 808#ifdef FWDUMP_bcmdhd 809 run_command("ND OFFLOAD TABLE", 5, 810 SU_PATH, "root", "wlutil", "nd_hostip", NULL); 811 812 run_command("DUMP WIFI INTERNAL COUNTERS (1)", 20, 813 SU_PATH, "root", "wlutil", "counters", NULL); 814 815 run_command("ND OFFLOAD STATUS (1)", 5, 816 SU_PATH, "root", "wlutil", "nd_status", NULL); 817 818#endif 819 dump_file("INTERRUPTS (1)", "/proc/interrupts"); 820 821 run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "connectivity", "--diag", NULL); 822 823#ifdef FWDUMP_bcmdhd 824 run_command("DUMP WIFI STATUS", 20, 825 SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL); 826 827 run_command("DUMP WIFI INTERNAL COUNTERS (2)", 20, 828 SU_PATH, "root", "wlutil", "counters", NULL); 829 830 run_command("ND OFFLOAD STATUS (2)", 5, 831 SU_PATH, "root", "wlutil", "nd_status", NULL); 832#endif 833 dump_file("INTERRUPTS (2)", "/proc/interrupts"); 834 835 print_properties(); 836 837 run_command("VOLD DUMP", 10, "vdc", "dump", NULL); 838 run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); 839 840 run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL); 841 842 run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); 843 844 printf("------ BACKLIGHTS ------\n"); 845 printf("LCD brightness="); 846 dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); 847 printf("Button brightness="); 848 dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); 849 printf("Keyboard brightness="); 850 dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); 851 printf("ALS mode="); 852 dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); 853 printf("LCD driver registers:\n"); 854 dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); 855 printf("\n"); 856 857 /* Binder state is expensive to look at as it uses a lot of memory. */ 858 dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log"); 859 dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log"); 860 dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions"); 861 dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats"); 862 dump_file("BINDER STATE", "/sys/kernel/debug/binder/state"); 863 864 printf("========================================================\n"); 865 printf("== Board\n"); 866 printf("========================================================\n"); 867 868 dumpstate_board(); 869 printf("\n"); 870 871 /* Migrate the ril_dumpstate to a dumpstate_board()? */ 872 char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0}; 873 property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30"); 874 if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) { 875 if (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) { 876 // su does not exist on user builds, so try running without it. 877 // This way any implementations of vril-dump that do not require 878 // root can run on user builds. 879 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 880 "vril-dump", NULL); 881 } else { 882 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 883 SU_PATH, "root", "vril-dump", NULL); 884 } 885 } 886 887 printf("========================================================\n"); 888 printf("== Android Framework Services\n"); 889 printf("========================================================\n"); 890 891 run_command("DUMPSYS", 60, "dumpsys", "-t", "60", "--skip", "meminfo,cpuinfo", NULL); 892 893 printf("========================================================\n"); 894 printf("== Checkins\n"); 895 printf("========================================================\n"); 896 897 run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "batterystats", "-c", NULL); 898 run_command("CHECKIN MEMINFO", 30, "dumpsys", "meminfo", "--checkin", NULL); 899 run_command("CHECKIN NETSTATS", 30, "dumpsys", "netstats", "--checkin", NULL); 900 run_command("CHECKIN PROCSTATS", 30, "dumpsys", "procstats", "-c", NULL); 901 run_command("CHECKIN USAGESTATS", 30, "dumpsys", "usagestats", "-c", NULL); 902 run_command("CHECKIN PACKAGE", 30, "dumpsys", "package", "--checkin", NULL); 903 904 printf("========================================================\n"); 905 printf("== Running Application Activities\n"); 906 printf("========================================================\n"); 907 908 run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL); 909 910 printf("========================================================\n"); 911 printf("== Running Application Services\n"); 912 printf("========================================================\n"); 913 914 run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL); 915 916 printf("========================================================\n"); 917 printf("== Running Application Providers\n"); 918 printf("========================================================\n"); 919 920 run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL); 921 922 923 printf("========================================================\n"); 924 printf("== Final progress (pid %d): %d/%d (originally %d)\n", 925 getpid(), progress, weight_total, WEIGHT_TOTAL); 926 printf("========================================================\n"); 927 printf("== dumpstate: done\n"); 928 printf("========================================================\n"); 929} 930 931static void usage() { 932 fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s] [-q] [-B] [-P] [-R] [-V version]\n" 933 " -b: play sound file instead of vibrate, at beginning of job\n" 934 " -e: play sound file instead of vibrate, at end of job\n" 935 " -o: write to file (instead of stdout)\n" 936 " -d: append date to filename (requires -o)\n" 937 " -p: capture screenshot to filename.png (requires -o)\n" 938 " -z: generates zipped file (requires -o)\n" 939 " -s: write output to control socket (for init)\n" 940 " -q: disable vibrate\n" 941 " -B: send broadcast when finished (requires -o)\n" 942 " -P: send broadcast when started and update system properties on progress (requires -o and -B)\n" 943 " -R: take bugreport in remote mode (requires -o, -z, -d and -B, shouldn't be used with -P)\n" 944 " -V: sets the bugreport format version (valid values: %s, %s)\n", 945 VERSION_DEFAULT.c_str(), VERSION_BUILD_ON_NAME.c_str()); 946} 947 948static void sigpipe_handler(int n) { 949 // don't complain to stderr or stdout 950 _exit(EXIT_FAILURE); 951} 952 953/* adds the temporary report to the existing .zip file, closes the .zip file, and removes the 954 temporary file. 955 */ 956static bool finish_zip_file(const std::string& bugreport_name, const std::string& bugreport_path, 957 time_t now) { 958 if (!add_zip_entry(bugreport_name, bugreport_path)) { 959 MYLOGE("Failed to add text entry to .zip file\n"); 960 return false; 961 } 962 if (!add_text_zip_entry("main_entry.txt", bugreport_name)) { 963 MYLOGE("Failed to add main_entry.txt to .zip file\n"); 964 return false; 965 } 966 967 int32_t err = zip_writer->Finish(); 968 if (err) { 969 MYLOGE("zip_writer->Finish(): %s\n", ZipWriter::ErrorCodeString(err)); 970 return false; 971 } 972 973 return true; 974} 975 976static std::string SHA256_file_hash(std::string filepath) { 977 ScopedFd fd(TEMP_FAILURE_RETRY(open(filepath.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC 978 | O_NOFOLLOW))); 979 if (fd.get() == -1) { 980 MYLOGE("open(%s): %s\n", filepath.c_str(), strerror(errno)); 981 return NULL; 982 } 983 984 SHA256_CTX ctx; 985 SHA256_init(&ctx); 986 987 std::vector<uint8_t> buffer(65536); 988 while (1) { 989 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd.get(), buffer.data(), buffer.size())); 990 if (bytes_read == 0) { 991 break; 992 } else if (bytes_read == -1) { 993 MYLOGE("read(%s): %s\n", filepath.c_str(), strerror(errno)); 994 return NULL; 995 } 996 997 SHA256_update(&ctx, buffer.data(), bytes_read); 998 } 999 1000 uint8_t hash[SHA256_DIGEST_SIZE]; 1001 memcpy(hash, SHA256_final(&ctx), SHA256_DIGEST_SIZE); 1002 char hash_buffer[SHA256_DIGEST_SIZE * 2 + 1]; 1003 for(size_t i = 0; i < SHA256_DIGEST_SIZE; i++) { 1004 sprintf(hash_buffer + (i * 2), "%02x", hash[i]); 1005 } 1006 hash_buffer[sizeof(hash_buffer) - 1] = 0; 1007 return std::string(hash_buffer); 1008} 1009 1010int main(int argc, char *argv[]) { 1011 struct sigaction sigact; 1012 int do_add_date = 0; 1013 int do_zip_file = 0; 1014 int do_vibrate = 1; 1015 char* use_outfile = 0; 1016 int use_socket = 0; 1017 int do_fb = 0; 1018 int do_broadcast = 0; 1019 int do_early_screenshot = 0; 1020 int is_remote_mode = 0; 1021 std::string version = VERSION_DEFAULT; 1022 1023 now = time(NULL); 1024 1025 if (getuid() != 0) { 1026 // Old versions of the adb client would call the 1027 // dumpstate command directly. Newer clients 1028 // call /system/bin/bugreport instead. If we detect 1029 // we're being called incorrectly, then exec the 1030 // correct program. 1031 return execl("/system/bin/bugreport", "/system/bin/bugreport", NULL); 1032 } 1033 1034 MYLOGI("begin\n"); 1035 1036 /* gets the sequential id */ 1037 char last_id[PROPERTY_VALUE_MAX]; 1038 property_get("dumpstate.last_id", last_id, "0"); 1039 id = strtoul(last_id, NULL, 10) + 1; 1040 sprintf(last_id, "%lu", id); 1041 property_set("dumpstate.last_id", last_id); 1042 MYLOGI("dumpstate id: %lu\n", id); 1043 1044 /* clear SIGPIPE handler */ 1045 memset(&sigact, 0, sizeof(sigact)); 1046 sigact.sa_handler = sigpipe_handler; 1047 sigaction(SIGPIPE, &sigact, NULL); 1048 1049 /* set as high priority, and protect from OOM killer */ 1050 setpriority(PRIO_PROCESS, 0, -20); 1051 FILE *oom_adj = fopen("/proc/self/oom_adj", "we"); 1052 if (oom_adj) { 1053 fputs("-17", oom_adj); 1054 fclose(oom_adj); 1055 } 1056 1057 /* parse arguments */ 1058 std::string args; 1059 format_args(argc, const_cast<const char **>(argv), &args); 1060 MYLOGD("Dumpstate command line: %s\n", args.c_str()); 1061 int c; 1062 while ((c = getopt(argc, argv, "dho:svqzpPBRV:")) != -1) { 1063 switch (c) { 1064 case 'd': do_add_date = 1; break; 1065 case 'z': do_zip_file = 1; break; 1066 case 'o': use_outfile = optarg; break; 1067 case 's': use_socket = 1; break; 1068 case 'v': break; // compatibility no-op 1069 case 'q': do_vibrate = 0; break; 1070 case 'p': do_fb = 1; break; 1071 case 'P': do_update_progress = 1; break; 1072 case 'R': is_remote_mode = 1; break; 1073 case 'B': do_broadcast = 1; break; 1074 case 'V': version = optarg; break; 1075 case '?': printf("\n"); 1076 case 'h': 1077 usage(); 1078 exit(1); 1079 } 1080 } 1081 1082 if ((do_zip_file || do_add_date || do_update_progress || do_broadcast) && !use_outfile) { 1083 usage(); 1084 exit(1); 1085 } 1086 1087 if (do_update_progress && !do_broadcast) { 1088 usage(); 1089 exit(1); 1090 } 1091 1092 if (is_remote_mode && (do_update_progress || !do_broadcast || !do_zip_file || !do_add_date)) { 1093 usage(); 1094 exit(1); 1095 } 1096 1097 if (version != VERSION_DEFAULT && version != VERSION_BUILD_ON_NAME) { 1098 usage(); 1099 exit(1); 1100 } 1101 1102 MYLOGI("bugreport format version: %s\n", version.c_str()); 1103 1104 do_early_screenshot = do_update_progress; 1105 1106 // If we are going to use a socket, do it as early as possible 1107 // to avoid timeouts from bugreport. 1108 if (use_socket) { 1109 redirect_to_socket(stdout, "dumpstate"); 1110 } 1111 1112 /* full path of the directory where the bugreport files will be written */ 1113 std::string bugreport_dir; 1114 1115 /* full path of the temporary file containing the bugreport */ 1116 std::string tmp_path; 1117 1118 /* full path of the file containing the dumpstate logs*/ 1119 std::string log_path; 1120 1121 /* full path of the systrace file, when enabled */ 1122 std::string systrace_path; 1123 1124 /* full path of the temporary file containing the screenshot (when requested) */ 1125 std::string screenshot_path; 1126 1127 /* base name (without suffix or extensions) of the bugreport files */ 1128 std::string base_name; 1129 1130 /* suffix of the bugreport files - it's typically the date (when invoked with -d), 1131 * although it could be changed by the user using a system property */ 1132 std::string suffix; 1133 1134 /* pointer to the actual path, be it zip or text */ 1135 std::string path; 1136 1137 /* pointer to the zipped file */ 1138 std::unique_ptr<FILE, int(*)(FILE*)> zip_file(NULL, fclose); 1139 1140 /* redirect output if needed */ 1141 bool is_redirecting = !use_socket && use_outfile; 1142 1143 if (is_redirecting) { 1144 bugreport_dir = dirname(use_outfile); 1145 base_name = basename(use_outfile); 1146 if (do_add_date) { 1147 char date[80]; 1148 strftime(date, sizeof(date), "%Y-%m-%d-%H-%M-%S", localtime(&now)); 1149 suffix = date; 1150 } else { 1151 suffix = "undated"; 1152 } 1153 if (version == VERSION_BUILD_ON_NAME) { 1154 char build_id[PROPERTY_VALUE_MAX]; 1155 property_get("ro.build.id", build_id, "UNKNOWN_BUILD"); 1156 base_name = base_name + "-" + build_id; 1157 } 1158 if (do_fb) { 1159 // TODO: if dumpstate was an object, the paths could be internal variables and then 1160 // we could have a function to calculate the derived values, such as: 1161 // screenshot_path = GetPath(".png"); 1162 screenshot_path = bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1163 } 1164 tmp_path = bugreport_dir + "/" + base_name + "-" + suffix + ".tmp"; 1165 log_path = bugreport_dir + "/dumpstate_log-" + suffix + "-" 1166 + std::to_string(getpid()) + ".txt"; 1167 systrace_path = bugreport_dir + "/systrace-" + suffix + ".txt"; 1168 1169 MYLOGD("Bugreport dir: %s\n" 1170 "Base name: %s\n" 1171 "Suffix: %s\n" 1172 "Log path: %s\n" 1173 "Temporary path: %s\n" 1174 "Screenshot path: %s\n", 1175 bugreport_dir.c_str(), base_name.c_str(), suffix.c_str(), 1176 log_path.c_str(), tmp_path.c_str(), screenshot_path.c_str()); 1177 1178 if (do_zip_file) { 1179 path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1180 MYLOGD("Creating initial .zip file (%s)\n", path.c_str()); 1181 create_parent_dirs(path.c_str()); 1182 zip_file.reset(fopen(path.c_str(), "wb")); 1183 if (!zip_file) { 1184 MYLOGE("fopen(%s, 'wb'): %s\n", path.c_str(), strerror(errno)); 1185 do_zip_file = 0; 1186 } else { 1187 zip_writer.reset(new ZipWriter(zip_file.get())); 1188 } 1189 add_text_zip_entry("version.txt", version); 1190 } 1191 1192 if (do_update_progress) { 1193 std::vector<std::string> am_args = { 1194 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1195 "--es", "android.intent.extra.NAME", suffix, 1196 "--ei", "android.intent.extra.ID", std::to_string(id), 1197 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1198 "--ei", "android.intent.extra.MAX", std::to_string(WEIGHT_TOTAL), 1199 }; 1200 send_broadcast("android.intent.action.BUGREPORT_STARTED", am_args); 1201 } 1202 } 1203 1204 /* read /proc/cmdline before dropping root */ 1205 FILE *cmdline = fopen("/proc/cmdline", "re"); 1206 if (cmdline) { 1207 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 1208 fclose(cmdline); 1209 } 1210 1211 /* open the vibrator before dropping root */ 1212 std::unique_ptr<FILE, int(*)(FILE*)> vibrator(NULL, fclose); 1213 if (do_vibrate) { 1214 vibrator.reset(fopen("/sys/class/timed_output/vibrator/enable", "we")); 1215 if (vibrator) { 1216 vibrate(vibrator.get(), 150); 1217 } 1218 } 1219 1220 if (do_fb && do_early_screenshot) { 1221 if (screenshot_path.empty()) { 1222 // should not have happened 1223 MYLOGE("INTERNAL ERROR: skipping early screenshot because path was not set\n"); 1224 } else { 1225 MYLOGI("taking early screenshot\n"); 1226 take_screenshot(screenshot_path); 1227 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 1228 if (chown(screenshot_path.c_str(), AID_SHELL, AID_SHELL)) { 1229 MYLOGE("Unable to change ownership of screenshot file %s: %s\n", 1230 screenshot_path.c_str(), strerror(errno)); 1231 } 1232 } 1233 } 1234 1235 if (do_zip_file) { 1236 if (chown(path.c_str(), AID_SHELL, AID_SHELL)) { 1237 MYLOGE("Unable to change ownership of zip file %s: %s\n", path.c_str(), strerror(errno)); 1238 } 1239 } 1240 1241 if (is_redirecting) { 1242 redirect_to_file(stderr, const_cast<char*>(log_path.c_str())); 1243 if (chown(log_path.c_str(), AID_SHELL, AID_SHELL)) { 1244 MYLOGE("Unable to change ownership of dumpstate log file %s: %s\n", 1245 log_path.c_str(), strerror(errno)); 1246 } 1247 /* TODO: rather than generating a text file now and zipping it later, 1248 it would be more efficient to redirect stdout to the zip entry 1249 directly, but the libziparchive doesn't support that option yet. */ 1250 redirect_to_file(stdout, const_cast<char*>(tmp_path.c_str())); 1251 if (chown(tmp_path.c_str(), AID_SHELL, AID_SHELL)) { 1252 MYLOGE("Unable to change ownership of temporary bugreport file %s: %s\n", 1253 tmp_path.c_str(), strerror(errno)); 1254 } 1255 } 1256 // NOTE: there should be no stdout output until now, otherwise it would break the header. 1257 // In particular, DurationReport objects should be created passing 'title, NULL', so their 1258 // duration is logged into MYLOG instead. 1259 print_header(version); 1260 1261 // Dumps systrace right away, otherwise it will be filled with unnecessary events. 1262 dump_systrace(systrace_path); 1263 1264 // Invoking the following dumpsys calls before dump_traces() to try and 1265 // keep the system stats as close to its initial state as possible. 1266 run_command_as_shell("DUMPSYS MEMINFO", 30, "dumpsys", "-t", "30", "meminfo", "-a", NULL); 1267 run_command_as_shell("DUMPSYS CPUINFO", 10, "dumpsys", "cpuinfo", "-a", NULL); 1268 1269 /* collect stack traces from Dalvik and native processes (needs root) */ 1270 dump_traces_path = dump_traces(); 1271 1272 /* Get the tombstone fds, recovery files, and mount info here while we are running as root. */ 1273 get_tombstone_fds(tombstone_data); 1274 add_dir(RECOVERY_DIR, true); 1275 add_dir(RECOVERY_DATA_DIR, true); 1276 add_dir(LOGPERSIST_DATA_DIR, false); 1277 add_mountinfo(); 1278 1279 if (!drop_root_user()) { 1280 return -1; 1281 } 1282 1283 dumpstate(do_early_screenshot ? "": screenshot_path, version); 1284 1285 /* close output if needed */ 1286 if (is_redirecting) { 1287 fclose(stdout); 1288 } 1289 1290 /* rename or zip the (now complete) .tmp file to its final location */ 1291 if (use_outfile) { 1292 1293 /* check if user changed the suffix using system properties */ 1294 char key[PROPERTY_KEY_MAX]; 1295 char value[PROPERTY_VALUE_MAX]; 1296 sprintf(key, "dumpstate.%d.name", getpid()); 1297 property_get(key, value, ""); 1298 bool change_suffix= false; 1299 if (value[0]) { 1300 /* must whitelist which characters are allowed, otherwise it could cross directories */ 1301 std::regex valid_regex("^[-_a-zA-Z0-9]+$"); 1302 if (std::regex_match(value, valid_regex)) { 1303 change_suffix = true; 1304 } else { 1305 MYLOGE("invalid suffix provided by user: %s\n", value); 1306 } 1307 } 1308 if (change_suffix) { 1309 MYLOGI("changing suffix from %s to %s\n", suffix.c_str(), value); 1310 suffix = value; 1311 if (!screenshot_path.empty()) { 1312 std::string new_screenshot_path = 1313 bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1314 if (rename(screenshot_path.c_str(), new_screenshot_path.c_str())) { 1315 MYLOGE("rename(%s, %s): %s\n", screenshot_path.c_str(), 1316 new_screenshot_path.c_str(), strerror(errno)); 1317 } else { 1318 screenshot_path = new_screenshot_path; 1319 } 1320 } 1321 } 1322 1323 bool do_text_file = true; 1324 if (do_zip_file) { 1325 std::string entry_name = base_name + "-" + suffix + ".txt"; 1326 MYLOGD("Adding main entry (%s) to .zip bugreport\n", entry_name.c_str()); 1327 if (!finish_zip_file(entry_name, tmp_path, now)) { 1328 MYLOGE("Failed to finish zip file; sending text bugreport instead\n"); 1329 do_text_file = true; 1330 } else { 1331 do_text_file = false; 1332 // Since zip file is already created, it needs to be renamed. 1333 std::string new_path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1334 if (path != new_path) { 1335 MYLOGD("Renaming zip file from %s to %s\n", path.c_str(), new_path.c_str()); 1336 if (rename(path.c_str(), new_path.c_str())) { 1337 MYLOGE("rename(%s, %s): %s\n", path.c_str(), 1338 new_path.c_str(), strerror(errno)); 1339 } else { 1340 path = new_path; 1341 } 1342 } 1343 } 1344 } 1345 if (do_text_file) { 1346 path = bugreport_dir + "/" + base_name + "-" + suffix + ".txt"; 1347 MYLOGD("Generating .txt bugreport at %s from %s\n", path.c_str(), tmp_path.c_str()); 1348 if (rename(tmp_path.c_str(), path.c_str())) { 1349 MYLOGE("rename(%s, %s): %s\n", tmp_path.c_str(), path.c_str(), strerror(errno)); 1350 path.clear(); 1351 } 1352 } 1353 } 1354 1355 /* vibrate a few but shortly times to let user know it's finished */ 1356 if (vibrator) { 1357 for (int i = 0; i < 3; i++) { 1358 vibrate(vibrator.get(), 75); 1359 usleep((75 + 50) * 1000); 1360 } 1361 } 1362 1363 /* tell activity manager we're done */ 1364 if (do_broadcast) { 1365 if (!path.empty()) { 1366 MYLOGI("Final bugreport path: %s\n", path.c_str()); 1367 std::vector<std::string> am_args = { 1368 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1369 "--ei", "android.intent.extra.ID", std::to_string(id), 1370 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1371 "--ei", "android.intent.extra.MAX", std::to_string(weight_total), 1372 "--es", "android.intent.extra.BUGREPORT", path, 1373 "--es", "android.intent.extra.DUMPSTATE_LOG", log_path 1374 }; 1375 if (do_fb) { 1376 am_args.push_back("--es"); 1377 am_args.push_back("android.intent.extra.SCREENSHOT"); 1378 am_args.push_back(screenshot_path); 1379 } 1380 if (is_remote_mode) { 1381 am_args.push_back("--es"); 1382 am_args.push_back("android.intent.extra.REMOTE_BUGREPORT_HASH"); 1383 am_args.push_back(SHA256_file_hash(path)); 1384 send_broadcast("android.intent.action.REMOTE_BUGREPORT_FINISHED", am_args); 1385 } else { 1386 send_broadcast("android.intent.action.BUGREPORT_FINISHED", am_args); 1387 } 1388 } else { 1389 MYLOGE("Skipping finished broadcast because bugreport could not be generated\n"); 1390 } 1391 } 1392 1393 MYLOGD("Final progress: %d/%d (originally %d)\n", progress, weight_total, WEIGHT_TOTAL); 1394 MYLOGI("done\n"); 1395 1396 if (is_redirecting) { 1397 fclose(stderr); 1398 } 1399 1400 return 0; 1401} 1402