dumpstate.cpp revision f0922cc1786c0c2fbf44c10b0005243ecbb4227d
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); 66static int control_socket_fd; 67 68#define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops" 69 70#define RAFT_DIR "/data/misc/raft/" 71#define RECOVERY_DIR "/cache/recovery" 72#define RECOVERY_DATA_DIR "/data/misc/recovery" 73#define LOGPERSIST_DATA_DIR "/data/misc/logd" 74#define TOMBSTONE_DIR "/data/tombstones" 75#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_" 76/* Can accomodate a tombstone number up to 9999. */ 77#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4) 78#define NUM_TOMBSTONES 10 79 80typedef struct { 81 char name[TOMBSTONE_MAX_LEN]; 82 int fd; 83} tombstone_data_t; 84 85static tombstone_data_t tombstone_data[NUM_TOMBSTONES]; 86 87// Root dir for all files copied as-is into the bugreport 88const std::string& ZIP_ROOT_DIR = "FS"; 89 90/* 91 * List of supported zip format versions. 92 * 93 * See bugreport-format.txt for more info. 94 */ 95// TODO: change to "v1" before final N build 96static std::string VERSION_DEFAULT = "v1-dev4"; 97 98static bool is_user_build() { 99 return 0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1); 100} 101 102/* gets the tombstone data, according to the bugreport type: if zipped gets all tombstones, 103 * otherwise gets just those modified in the last half an hour. */ 104static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) { 105 time_t thirty_minutes_ago = now - 60*30; 106 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 107 snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i); 108 int fd = TEMP_FAILURE_RETRY(open(data[i].name, 109 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 110 struct stat st; 111 if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) && 112 (zip_writer || (time_t) st.st_mtime >= thirty_minutes_ago)) { 113 data[i].fd = fd; 114 } else { 115 close(fd); 116 data[i].fd = -1; 117 } 118 } 119} 120 121// for_each_pid() callback to get mount info about a process. 122void do_mountinfo(int pid, const char *name) { 123 char path[PATH_MAX]; 124 125 // Gets the the content of the /proc/PID/ns/mnt link, so only unique mount points 126 // are added. 127 snprintf(path, sizeof(path), "/proc/%d/ns/mnt", pid); 128 char linkname[PATH_MAX]; 129 ssize_t r = readlink(path, linkname, PATH_MAX); 130 if (r == -1) { 131 MYLOGE("Unable to read link for %s: %s\n", path, strerror(errno)); 132 return; 133 } 134 linkname[r] = '\0'; 135 136 if (mount_points.find(linkname) == mount_points.end()) { 137 // First time this mount point was found: add it 138 snprintf(path, sizeof(path), "/proc/%d/mountinfo", pid); 139 if (add_zip_entry(ZIP_ROOT_DIR + path, path)) { 140 mount_points.insert(linkname); 141 } else { 142 MYLOGE("Unable to add mountinfo %s to zip file\n", path); 143 } 144 } 145} 146 147void add_mountinfo() { 148 if (!zip_writer) return; 149 const char *title = "MOUNT INFO"; 150 mount_points.clear(); 151 DurationReporter duration_reporter(title, NULL); 152 for_each_pid(do_mountinfo, NULL); 153 MYLOGD("%s: %d entries added to zip file\n", title, (int) mount_points.size()); 154} 155 156static void dump_dev_files(const char *title, const char *driverpath, const char *filename) 157{ 158 DIR *d; 159 struct dirent *de; 160 char path[PATH_MAX]; 161 162 d = opendir(driverpath); 163 if (d == NULL) { 164 return; 165 } 166 167 while ((de = readdir(d))) { 168 if (de->d_type != DT_LNK) { 169 continue; 170 } 171 snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename); 172 dump_file(title, path); 173 } 174 175 closedir(d); 176} 177 178static void dump_systrace(const std::string& systrace_path) { 179 if (!zip_writer) { 180 MYLOGD("Not dumping systrace because zip_writer is not set\n"); 181 return; 182 } 183 if (systrace_path.empty()) { 184 MYLOGE("Not dumping systrace because path is empty\n"); 185 return; 186 } 187 const char* path = "/sys/kernel/debug/tracing/tracing_on"; 188 long int is_tracing; 189 if (read_file_as_long(path, &is_tracing)) { 190 return; // error already logged 191 } 192 if (is_tracing <= 0) { 193 MYLOGD("Skipping systrace because '%s' content is '%ld'\n", path, is_tracing); 194 return; 195 } 196 197 MYLOGD("Running '/system/bin/atrace --async_dump -o %s', which can take several minutes", 198 systrace_path.c_str()); 199 if (run_command("SYSTRACE", 120, "/system/bin/atrace", "--async_dump", "-o", 200 systrace_path.c_str(), NULL)) { 201 MYLOGE("systrace timed out, its zip entry will be incomplete\n"); 202 // TODO: run_command tries to kill the process, but atrace doesn't die peacefully; ideally, 203 // we should call strace to stop itself, but there is no such option yet (just a 204 // --async_stop, which stops and dump 205 // if (run_command("SYSTRACE", 10, "/system/bin/atrace", "--kill", NULL)) { 206 // MYLOGE("could not stop systrace "); 207 // } 208 } 209 if (!add_zip_entry("systrace.txt", systrace_path)) { 210 MYLOGE("Unable to add systrace file %s to zip file\n", systrace_path.c_str()); 211 } else { 212 if (remove(systrace_path.c_str())) { 213 MYLOGE("Error removing systrace file %s: %s", systrace_path.c_str(), strerror(errno)); 214 } 215 } 216} 217 218static bool skip_not_stat(const char *path) { 219 static const char stat[] = "/stat"; 220 size_t len = strlen(path); 221 if (path[len - 1] == '/') { /* Directory? */ 222 return false; 223 } 224 return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */ 225} 226 227static bool skip_none(const char *path) { 228 return false; 229} 230 231static const char mmcblk0[] = "/sys/block/mmcblk0/"; 232unsigned long worst_write_perf = 20000; /* in KB/s */ 233 234// 235// stat offsets 236// Name units description 237// ---- ----- ----------- 238// read I/Os requests number of read I/Os processed 239#define __STAT_READ_IOS 0 240// read merges requests number of read I/Os merged with in-queue I/O 241#define __STAT_READ_MERGES 1 242// read sectors sectors number of sectors read 243#define __STAT_READ_SECTORS 2 244// read ticks milliseconds total wait time for read requests 245#define __STAT_READ_TICKS 3 246// write I/Os requests number of write I/Os processed 247#define __STAT_WRITE_IOS 4 248// write merges requests number of write I/Os merged with in-queue I/O 249#define __STAT_WRITE_MERGES 5 250// write sectors sectors number of sectors written 251#define __STAT_WRITE_SECTORS 6 252// write ticks milliseconds total wait time for write requests 253#define __STAT_WRITE_TICKS 7 254// in_flight requests number of I/Os currently in flight 255#define __STAT_IN_FLIGHT 8 256// io_ticks milliseconds total time this block device has been active 257#define __STAT_IO_TICKS 9 258// time_in_queue milliseconds total wait time for all requests 259#define __STAT_IN_QUEUE 10 260#define __STAT_NUMBER_FIELD 11 261// 262// read I/Os, write I/Os 263// ===================== 264// 265// These values increment when an I/O request completes. 266// 267// read merges, write merges 268// ========================= 269// 270// These values increment when an I/O request is merged with an 271// already-queued I/O request. 272// 273// read sectors, write sectors 274// =========================== 275// 276// These values count the number of sectors read from or written to this 277// block device. The "sectors" in question are the standard UNIX 512-byte 278// sectors, not any device- or filesystem-specific block size. The 279// counters are incremented when the I/O completes. 280#define SECTOR_SIZE 512 281// 282// read ticks, write ticks 283// ======================= 284// 285// These values count the number of milliseconds that I/O requests have 286// waited on this block device. If there are multiple I/O requests waiting, 287// these values will increase at a rate greater than 1000/second; for 288// example, if 60 read requests wait for an average of 30 ms, the read_ticks 289// field will increase by 60*30 = 1800. 290// 291// in_flight 292// ========= 293// 294// This value counts the number of I/O requests that have been issued to 295// the device driver but have not yet completed. It does not include I/O 296// requests that are in the queue but not yet issued to the device driver. 297// 298// io_ticks 299// ======== 300// 301// This value counts the number of milliseconds during which the device has 302// had I/O requests queued. 303// 304// time_in_queue 305// ============= 306// 307// This value counts the number of milliseconds that I/O requests have waited 308// on this block device. If there are multiple I/O requests waiting, this 309// value will increase as the product of the number of milliseconds times the 310// number of requests waiting (see "read ticks" above for an example). 311#define S_TO_MS 1000 312// 313 314static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) { 315 unsigned long long fields[__STAT_NUMBER_FIELD]; 316 bool z; 317 char *cp, *buffer = NULL; 318 size_t i = 0; 319 FILE *fp = fdopen(fd, "rb"); 320 getline(&buffer, &i, fp); 321 fclose(fp); 322 if (!buffer) { 323 return -errno; 324 } 325 i = strlen(buffer); 326 while ((i > 0) && (buffer[i - 1] == '\n')) { 327 buffer[--i] = '\0'; 328 } 329 if (!*buffer) { 330 free(buffer); 331 return 0; 332 } 333 z = true; 334 for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) { 335 fields[i] = strtoull(cp, &cp, 10); 336 if (fields[i] != 0) { 337 z = false; 338 } 339 } 340 if (z) { /* never accessed */ 341 free(buffer); 342 return 0; 343 } 344 345 if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) { 346 path += sizeof(mmcblk0) - 1; 347 } 348 349 printf("%s: %s\n", path, buffer); 350 free(buffer); 351 352 if (fields[__STAT_IO_TICKS]) { 353 unsigned long read_perf = 0; 354 unsigned long read_ios = 0; 355 if (fields[__STAT_READ_TICKS]) { 356 unsigned long long divisor = fields[__STAT_READ_TICKS] 357 * fields[__STAT_IO_TICKS]; 358 read_perf = ((unsigned long long)SECTOR_SIZE 359 * fields[__STAT_READ_SECTORS] 360 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 361 / divisor; 362 read_ios = ((unsigned long long)S_TO_MS * fields[__STAT_READ_IOS] 363 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 364 / divisor; 365 } 366 367 unsigned long write_perf = 0; 368 unsigned long write_ios = 0; 369 if (fields[__STAT_WRITE_TICKS]) { 370 unsigned long long divisor = fields[__STAT_WRITE_TICKS] 371 * fields[__STAT_IO_TICKS]; 372 write_perf = ((unsigned long long)SECTOR_SIZE 373 * fields[__STAT_WRITE_SECTORS] 374 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 375 / divisor; 376 write_ios = ((unsigned long long)S_TO_MS * fields[__STAT_WRITE_IOS] 377 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 378 / divisor; 379 } 380 381 unsigned queue = (fields[__STAT_IN_QUEUE] 382 + (fields[__STAT_IO_TICKS] >> 1)) 383 / fields[__STAT_IO_TICKS]; 384 385 if (!write_perf && !write_ios) { 386 printf("%s: perf(ios) rd: %luKB/s(%lu/s) q: %u\n", 387 path, read_perf, read_ios, queue); 388 } else { 389 printf("%s: perf(ios) rd: %luKB/s(%lu/s) wr: %luKB/s(%lu/s) q: %u\n", 390 path, read_perf, read_ios, write_perf, write_ios, queue); 391 } 392 393 /* bugreport timeout factor adjustment */ 394 if ((write_perf > 1) && (write_perf < worst_write_perf)) { 395 worst_write_perf = write_perf; 396 } 397 } 398 return 0; 399} 400 401/* Copied policy from system/core/logd/LogBuffer.cpp */ 402 403#define LOG_BUFFER_SIZE (256 * 1024) 404#define LOG_BUFFER_MIN_SIZE (64 * 1024UL) 405#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) 406 407static bool valid_size(unsigned long value) { 408 if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) { 409 return false; 410 } 411 412 long pages = sysconf(_SC_PHYS_PAGES); 413 if (pages < 1) { 414 return true; 415 } 416 417 long pagesize = sysconf(_SC_PAGESIZE); 418 if (pagesize <= 1) { 419 pagesize = PAGE_SIZE; 420 } 421 422 // maximum memory impact a somewhat arbitrary ~3% 423 pages = (pages + 31) / 32; 424 unsigned long maximum = pages * pagesize; 425 426 if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) { 427 return true; 428 } 429 430 return value <= maximum; 431} 432 433static unsigned long property_get_size(const char *key) { 434 unsigned long value; 435 char *cp, property[PROPERTY_VALUE_MAX]; 436 437 property_get(key, property, ""); 438 value = strtoul(property, &cp, 10); 439 440 switch(*cp) { 441 case 'm': 442 case 'M': 443 value *= 1024; 444 /* FALLTHRU */ 445 case 'k': 446 case 'K': 447 value *= 1024; 448 /* FALLTHRU */ 449 case '\0': 450 break; 451 452 default: 453 value = 0; 454 } 455 456 if (!valid_size(value)) { 457 value = 0; 458 } 459 460 return value; 461} 462 463/* timeout in ms */ 464static unsigned long logcat_timeout(const char *name) { 465 static const char global_tuneable[] = "persist.logd.size"; // Settings App 466 static const char global_default[] = "ro.logd.size"; // BoardConfig.mk 467 char key[PROP_NAME_MAX]; 468 unsigned long property_size, default_size; 469 470 default_size = property_get_size(global_tuneable); 471 if (!default_size) { 472 default_size = property_get_size(global_default); 473 } 474 475 snprintf(key, sizeof(key), "%s.%s", global_tuneable, name); 476 property_size = property_get_size(key); 477 478 if (!property_size) { 479 snprintf(key, sizeof(key), "%s.%s", global_default, name); 480 property_size = property_get_size(key); 481 } 482 483 if (!property_size) { 484 property_size = default_size; 485 } 486 487 if (!property_size) { 488 property_size = LOG_BUFFER_SIZE; 489 } 490 491 /* Engineering margin is ten-fold our guess */ 492 return 10 * (property_size + worst_write_perf) / worst_write_perf; 493} 494 495/* End copy from system/core/logd/LogBuffer.cpp */ 496 497/* dumps the current system state to stdout */ 498static void print_header(std::string version) { 499 char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; 500 char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; 501 char network[PROPERTY_VALUE_MAX], date[80]; 502 503 property_get("ro.build.display.id", build, "(unknown)"); 504 property_get("ro.build.fingerprint", fingerprint, "(unknown)"); 505 property_get("ro.build.type", build_type, "(unknown)"); 506 property_get("ro.baseband", radio, "(unknown)"); 507 property_get("ro.bootloader", bootloader, "(unknown)"); 508 property_get("gsm.operator.alpha", network, "(unknown)"); 509 strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); 510 511 printf("========================================================\n"); 512 printf("== dumpstate: %s\n", date); 513 printf("========================================================\n"); 514 515 printf("\n"); 516 printf("Build: %s\n", build); 517 printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */ 518 printf("Bootloader: %s\n", bootloader); 519 printf("Radio: %s\n", radio); 520 printf("Network: %s\n", network); 521 522 printf("Kernel: "); 523 dump_file(NULL, "/proc/version"); 524 printf("Command line: %s\n", strtok(cmdline_buf, "\n")); 525 printf("Bugreport format version: %s\n", version.c_str()); 526 printf("Dumpstate info: id=%lu pid=%d\n", id, getpid()); 527 printf("\n"); 528} 529 530/* adds a new entry to the existing zip file. */ 531static bool add_zip_entry_from_fd(const std::string& entry_name, int fd) { 532 if (!zip_writer) { 533 MYLOGD("Not adding zip entry %s from fd because zip_writer is not set\n", 534 entry_name.c_str()); 535 return false; 536 } 537 // Logging statement below is useful to time how long each entry takes, but it's too verbose. 538 // MYLOGD("Adding zip entry %s\n", entry_name.c_str()); 539 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), 540 ZipWriter::kCompress, get_mtime(fd, now)); 541 if (err) { 542 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 543 ZipWriter::ErrorCodeString(err)); 544 return false; 545 } 546 547 std::vector<uint8_t> buffer(65536); 548 while (1) { 549 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer.data(), sizeof(buffer))); 550 if (bytes_read == 0) { 551 break; 552 } else if (bytes_read == -1) { 553 MYLOGE("read(%s): %s\n", entry_name.c_str(), strerror(errno)); 554 return false; 555 } 556 err = zip_writer->WriteBytes(buffer.data(), bytes_read); 557 if (err) { 558 MYLOGE("zip_writer->WriteBytes(): %s\n", ZipWriter::ErrorCodeString(err)); 559 return false; 560 } 561 } 562 563 err = zip_writer->FinishEntry(); 564 if (err) { 565 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 566 return false; 567 } 568 569 return true; 570} 571 572/* adds a new entry to the existing zip file. */ 573static bool add_zip_entry(const std::string& entry_name, const std::string& entry_path) { 574 ScopedFd fd(TEMP_FAILURE_RETRY(open(entry_path.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC))); 575 if (fd.get() == -1) { 576 MYLOGE("open(%s): %s\n", entry_path.c_str(), strerror(errno)); 577 return false; 578 } 579 580 return add_zip_entry_from_fd(entry_name, fd.get()); 581} 582 583/* adds a file to the existing zipped bugreport */ 584static int _add_file_from_fd(const char *title, const char *path, int fd) { 585 return add_zip_entry_from_fd(ZIP_ROOT_DIR + path, fd) ? 0 : 1; 586} 587 588/* adds all files from a directory to the zipped bugreport file */ 589void add_dir(const char *dir, bool recursive) { 590 if (!zip_writer) { 591 MYLOGD("Not adding dir %s because zip_writer is not set\n", dir); 592 return; 593 } 594 MYLOGD("Adding dir %s (recursive: %d)\n", dir, recursive); 595 DurationReporter duration_reporter(dir, NULL); 596 dump_files(NULL, dir, recursive ? skip_none : is_dir, _add_file_from_fd); 597} 598 599/* adds a text entry entry to the existing zip file. */ 600static bool add_text_zip_entry(const std::string& entry_name, const std::string& content) { 601 if (!zip_writer) { 602 MYLOGD("Not adding text zip entry %s because zip_writer is not set\n", entry_name.c_str()); 603 return false; 604 } 605 MYLOGD("Adding zip text entry %s\n", entry_name.c_str()); 606 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), ZipWriter::kCompress, now); 607 if (err) { 608 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 609 ZipWriter::ErrorCodeString(err)); 610 return false; 611 } 612 613 err = zip_writer->WriteBytes(content.c_str(), content.length()); 614 if (err) { 615 MYLOGE("zip_writer->WriteBytes(%s): %s\n", entry_name.c_str(), 616 ZipWriter::ErrorCodeString(err)); 617 return false; 618 } 619 620 err = zip_writer->FinishEntry(); 621 if (err) { 622 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 623 return false; 624 } 625 626 return true; 627} 628 629static void dumpstate(const std::string& screenshot_path, const std::string& version) { 630 DurationReporter duration_reporter("DUMPSTATE"); 631 unsigned long timeout; 632 633 dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version"); 634 run_command("UPTIME", 10, "uptime", NULL); 635 dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd); 636 dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd"); 637 dump_file("MEMORY INFO", "/proc/meminfo"); 638 run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-H", NULL); 639 run_command("PROCRANK", 20, SU_PATH, "root", "procrank", NULL); 640 dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat"); 641 dump_file("VMALLOC INFO", "/proc/vmallocinfo"); 642 dump_file("SLAB INFO", "/proc/slabinfo"); 643 dump_file("ZONEINFO", "/proc/zoneinfo"); 644 dump_file("PAGETYPEINFO", "/proc/pagetypeinfo"); 645 dump_file("BUDDYINFO", "/proc/buddyinfo"); 646 dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index"); 647 648 dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources"); 649 dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); 650 dump_file("KERNEL SYNC", "/d/sync"); 651 652 run_command("PROCESSES AND THREADS", 10, "ps", "-Z", "-t", "-p", "-P", NULL); 653 run_command("LIBRANK", 10, SU_PATH, "root", "librank", NULL); 654 655 run_command("PRINTENV", 10, "printenv", NULL); 656 run_command("NETSTAT", 10, "netstat", "-n", NULL); 657 run_command("LSMOD", 10, "lsmod", NULL); 658 659 do_dmesg(); 660 661 run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL); 662 for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES"); 663 for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); 664 for_each_pid(show_showtime, "PROCESS TIMES (pid cmd user system iowait+percentage)"); 665 666 if (!screenshot_path.empty()) { 667 MYLOGI("taking late screenshot\n"); 668 take_screenshot(screenshot_path); 669 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 670 } 671 672 // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); 673 // calculate timeout 674 timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash"); 675 if (timeout < 20000) { 676 timeout = 20000; 677 } 678 run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime", 679 "-v", "printable", 680 "-d", 681 "*:v", NULL); 682 timeout = logcat_timeout("events"); 683 if (timeout < 20000) { 684 timeout = 20000; 685 } 686 run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events", 687 "-v", "threadtime", 688 "-v", "printable", 689 "-d", 690 "*:v", NULL); 691 timeout = logcat_timeout("radio"); 692 if (timeout < 20000) { 693 timeout = 20000; 694 } 695 run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio", 696 "-v", "threadtime", 697 "-v", "printable", 698 "-d", 699 "*:v", NULL); 700 701 run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL); 702 703 run_command("RAFT LOGS", 600, SU_PATH, "root", "logcompressor", "-r", RAFT_DIR, NULL); 704 705 /* show the traces we collected in main(), if that was done */ 706 if (dump_traces_path != NULL) { 707 dump_file("VM TRACES JUST NOW", dump_traces_path); 708 } 709 710 /* only show ANR traces if they're less than 15 minutes old */ 711 struct stat st; 712 char anr_traces_path[PATH_MAX]; 713 property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); 714 if (!anr_traces_path[0]) { 715 printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); 716 } else { 717 int fd = TEMP_FAILURE_RETRY(open(anr_traces_path, 718 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 719 if (fd < 0) { 720 printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); 721 } else { 722 dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd); 723 } 724 } 725 726 /* slow traces for slow operations */ 727 if (anr_traces_path[0] != 0) { 728 int tail = strlen(anr_traces_path)-1; 729 while (tail > 0 && anr_traces_path[tail] != '/') { 730 tail--; 731 } 732 int i = 0; 733 while (1) { 734 sprintf(anr_traces_path+tail+1, "slow%02d.txt", i); 735 if (stat(anr_traces_path, &st)) { 736 // No traces file at this index, done with the files. 737 break; 738 } 739 dump_file("VM TRACES WHEN SLOW", anr_traces_path); 740 i++; 741 } 742 } 743 744 int dumped = 0; 745 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 746 if (tombstone_data[i].fd != -1) { 747 const char *name = tombstone_data[i].name; 748 int fd = tombstone_data[i].fd; 749 dumped = 1; 750 if (zip_writer) { 751 if (!add_zip_entry_from_fd(ZIP_ROOT_DIR + name, fd)) { 752 MYLOGE("Unable to add tombstone %s to zip file\n", name); 753 } 754 } else { 755 dump_file_from_fd("TOMBSTONE", name, fd); 756 } 757 close(fd); 758 tombstone_data[i].fd = -1; 759 } 760 } 761 if (!dumped) { 762 printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR); 763 } 764 765 dump_file("NETWORK DEV INFO", "/proc/net/dev"); 766 dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all"); 767 dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt"); 768 dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl"); 769 dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats"); 770 771 if (!stat(PSTORE_LAST_KMSG, &st)) { 772 /* Also TODO: Make console-ramoops CAP_SYSLOG protected. */ 773 dump_file("LAST KMSG", PSTORE_LAST_KMSG); 774 } else { 775 /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */ 776 dump_file("LAST KMSG", "/proc/last_kmsg"); 777 } 778 779 /* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */ 780 run_command("LAST LOGCAT", 10, "logcat", "-L", 781 "-b", "all", 782 "-v", "threadtime", 783 "-v", "printable", 784 "-d", 785 "*:v", NULL); 786 787 /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */ 788 789 run_command("NETWORK INTERFACES", 10, "ip", "link", NULL); 790 791 run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL); 792 run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL); 793 794 run_command("IP RULES", 10, "ip", "rule", "show", NULL); 795 run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL); 796 797 dump_route_tables(); 798 799 run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL); 800 run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL); 801 802 run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL); 803 run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL); 804 run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL); 805 /* no ip6 nat */ 806 run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL); 807 run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL); 808 809 run_command("WIFI NETWORKS", 20, 810 SU_PATH, "root", "wpa_cli", "IFNAME=wlan0", "list_networks", NULL); 811 812#ifdef FWDUMP_bcmdhd 813 run_command("ND OFFLOAD TABLE", 5, 814 SU_PATH, "root", "wlutil", "nd_hostip", NULL); 815 816 run_command("DUMP WIFI INTERNAL COUNTERS (1)", 20, 817 SU_PATH, "root", "wlutil", "counters", NULL); 818 819 run_command("ND OFFLOAD STATUS (1)", 5, 820 SU_PATH, "root", "wlutil", "nd_status", NULL); 821 822#endif 823 dump_file("INTERRUPTS (1)", "/proc/interrupts"); 824 825 run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "connectivity", "--diag", NULL); 826 827#ifdef FWDUMP_bcmdhd 828 run_command("DUMP WIFI STATUS", 20, 829 SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL); 830 831 run_command("DUMP WIFI INTERNAL COUNTERS (2)", 20, 832 SU_PATH, "root", "wlutil", "counters", NULL); 833 834 run_command("ND OFFLOAD STATUS (2)", 5, 835 SU_PATH, "root", "wlutil", "nd_status", NULL); 836#endif 837 dump_file("INTERRUPTS (2)", "/proc/interrupts"); 838 839 print_properties(); 840 841 run_command("VOLD DUMP", 10, "vdc", "dump", NULL); 842 run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); 843 844 run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL); 845 846 run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); 847 848 printf("------ BACKLIGHTS ------\n"); 849 printf("LCD brightness="); 850 dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); 851 printf("Button brightness="); 852 dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); 853 printf("Keyboard brightness="); 854 dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); 855 printf("ALS mode="); 856 dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); 857 printf("LCD driver registers:\n"); 858 dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); 859 printf("\n"); 860 861 /* Binder state is expensive to look at as it uses a lot of memory. */ 862 dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log"); 863 dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log"); 864 dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions"); 865 dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats"); 866 dump_file("BINDER STATE", "/sys/kernel/debug/binder/state"); 867 868 printf("========================================================\n"); 869 printf("== Board\n"); 870 printf("========================================================\n"); 871 872 dumpstate_board(); 873 printf("\n"); 874 875 /* Migrate the ril_dumpstate to a dumpstate_board()? */ 876 char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0}; 877 property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30"); 878 if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) { 879 if (is_user_build()) { 880 // su does not exist on user builds, so try running without it. 881 // This way any implementations of vril-dump that do not require 882 // root can run on user builds. 883 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 884 "vril-dump", NULL); 885 } else { 886 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 887 SU_PATH, "root", "vril-dump", NULL); 888 } 889 } 890 891 printf("========================================================\n"); 892 printf("== Android Framework Services\n"); 893 printf("========================================================\n"); 894 895 run_command("DUMPSYS", 60, "dumpsys", "-t", "60", "--skip", "meminfo,cpuinfo", NULL); 896 897 printf("========================================================\n"); 898 printf("== Checkins\n"); 899 printf("========================================================\n"); 900 901 run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "batterystats", "-c", NULL); 902 run_command("CHECKIN MEMINFO", 30, "dumpsys", "meminfo", "--checkin", NULL); 903 run_command("CHECKIN NETSTATS", 30, "dumpsys", "netstats", "--checkin", NULL); 904 run_command("CHECKIN PROCSTATS", 30, "dumpsys", "procstats", "-c", NULL); 905 run_command("CHECKIN USAGESTATS", 30, "dumpsys", "usagestats", "-c", NULL); 906 run_command("CHECKIN PACKAGE", 30, "dumpsys", "package", "--checkin", NULL); 907 908 printf("========================================================\n"); 909 printf("== Running Application Activities\n"); 910 printf("========================================================\n"); 911 912 run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL); 913 914 printf("========================================================\n"); 915 printf("== Running Application Services\n"); 916 printf("========================================================\n"); 917 918 run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL); 919 920 printf("========================================================\n"); 921 printf("== Running Application Providers\n"); 922 printf("========================================================\n"); 923 924 run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL); 925 926 927 printf("========================================================\n"); 928 printf("== Final progress (pid %d): %d/%d (originally %d)\n", 929 getpid(), progress, weight_total, WEIGHT_TOTAL); 930 printf("========================================================\n"); 931 printf("== dumpstate: done\n"); 932 printf("========================================================\n"); 933} 934 935static void usage() { 936 fprintf(stderr, 937 "usage: dumpstate [-h] [-b soundfile] [-e soundfile] [-o file [-d] [-p] " 938 "[-z]] [-s] [-S] [-q] [-B] [-P] [-R] [-V version]\n" 939 " -h: display this help message\n" 940 " -b: play sound file instead of vibrate, at beginning of job\n" 941 " -e: play sound file instead of vibrate, at end of job\n" 942 " -o: write to file (instead of stdout)\n" 943 " -d: append date to filename (requires -o)\n" 944 " -p: capture screenshot to filename.png (requires -o)\n" 945 " -z: generate zipped file (requires -o)\n" 946 " -s: write output to control socket (for init)\n" 947 " -S: write file location to control socket (for init; requires -o and -z)" 948 " -q: disable vibrate\n" 949 " -B: send broadcast when finished (requires -o)\n" 950 " -P: send broadcast when started and update system properties on " 951 "progress (requires -o and -B)\n" 952 " -R: take bugreport in remote mode (requires -o, -z, -d and -B, " 953 "shouldn't be used with -P)\n" 954 " -V: sets the bugreport format version (valid values: %s)\n", 955 VERSION_DEFAULT.c_str()); 956} 957 958static void sigpipe_handler(int n) { 959 // don't complain to stderr or stdout 960 _exit(EXIT_FAILURE); 961} 962 963/* adds the temporary report to the existing .zip file, closes the .zip file, and removes the 964 temporary file. 965 */ 966static bool finish_zip_file(const std::string& bugreport_name, const std::string& bugreport_path, 967 time_t now) { 968 if (!add_zip_entry(bugreport_name, bugreport_path)) { 969 MYLOGE("Failed to add text entry to .zip file\n"); 970 return false; 971 } 972 if (!add_text_zip_entry("main_entry.txt", bugreport_name)) { 973 MYLOGE("Failed to add main_entry.txt to .zip file\n"); 974 return false; 975 } 976 977 int32_t err = zip_writer->Finish(); 978 if (err) { 979 MYLOGE("zip_writer->Finish(): %s\n", ZipWriter::ErrorCodeString(err)); 980 return false; 981 } 982 983 if (is_user_build()) { 984 MYLOGD("Removing temporary file %s\n", bugreport_path.c_str()) 985 if (remove(bugreport_path.c_str())) { 986 ALOGW("remove(%s): %s\n", bugreport_path.c_str(), strerror(errno)); 987 } 988 } else { 989 MYLOGD("Keeping temporary file %s on non-user build\n", bugreport_path.c_str()) 990 } 991 992 return true; 993} 994 995static std::string SHA256_file_hash(std::string filepath) { 996 ScopedFd fd(TEMP_FAILURE_RETRY(open(filepath.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC 997 | O_NOFOLLOW))); 998 if (fd.get() == -1) { 999 MYLOGE("open(%s): %s\n", filepath.c_str(), strerror(errno)); 1000 return NULL; 1001 } 1002 1003 SHA256_CTX ctx; 1004 SHA256_init(&ctx); 1005 1006 std::vector<uint8_t> buffer(65536); 1007 while (1) { 1008 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd.get(), buffer.data(), buffer.size())); 1009 if (bytes_read == 0) { 1010 break; 1011 } else if (bytes_read == -1) { 1012 MYLOGE("read(%s): %s\n", filepath.c_str(), strerror(errno)); 1013 return NULL; 1014 } 1015 1016 SHA256_update(&ctx, buffer.data(), bytes_read); 1017 } 1018 1019 uint8_t hash[SHA256_DIGEST_SIZE]; 1020 memcpy(hash, SHA256_final(&ctx), SHA256_DIGEST_SIZE); 1021 char hash_buffer[SHA256_DIGEST_SIZE * 2 + 1]; 1022 for(size_t i = 0; i < SHA256_DIGEST_SIZE; i++) { 1023 sprintf(hash_buffer + (i * 2), "%02x", hash[i]); 1024 } 1025 hash_buffer[sizeof(hash_buffer) - 1] = 0; 1026 return std::string(hash_buffer); 1027} 1028 1029int main(int argc, char *argv[]) { 1030 struct sigaction sigact; 1031 int do_add_date = 0; 1032 int do_zip_file = 0; 1033 int do_vibrate = 1; 1034 char* use_outfile = 0; 1035 int use_socket = 0; 1036 int use_control_socket = 0; 1037 int do_fb = 0; 1038 int do_broadcast = 0; 1039 int do_early_screenshot = 0; 1040 int is_remote_mode = 0; 1041 std::string version = VERSION_DEFAULT; 1042 1043 now = time(NULL); 1044 1045 MYLOGI("begin\n"); 1046 1047 /* gets the sequential id */ 1048 char last_id[PROPERTY_VALUE_MAX]; 1049 property_get("dumpstate.last_id", last_id, "0"); 1050 id = strtoul(last_id, NULL, 10) + 1; 1051 snprintf(last_id, sizeof(last_id), "%lu", id); 1052 property_set("dumpstate.last_id", last_id); 1053 MYLOGI("dumpstate id: %lu\n", id); 1054 1055 /* clear SIGPIPE handler */ 1056 memset(&sigact, 0, sizeof(sigact)); 1057 sigact.sa_handler = sigpipe_handler; 1058 sigaction(SIGPIPE, &sigact, NULL); 1059 1060 /* set as high priority, and protect from OOM killer */ 1061 setpriority(PRIO_PROCESS, 0, -20); 1062 FILE *oom_adj = fopen("/proc/self/oom_adj", "we"); 1063 if (oom_adj) { 1064 fputs("-17", oom_adj); 1065 fclose(oom_adj); 1066 } 1067 1068 /* parse arguments */ 1069 std::string args; 1070 format_args(argc, const_cast<const char **>(argv), &args); 1071 MYLOGD("Dumpstate command line: %s\n", args.c_str()); 1072 int c; 1073 while ((c = getopt(argc, argv, "dho:svqzpPBRSV:")) != -1) { 1074 switch (c) { 1075 case 'd': do_add_date = 1; break; 1076 case 'z': do_zip_file = 1; break; 1077 case 'o': use_outfile = optarg; break; 1078 case 's': use_socket = 1; break; 1079 case 'S': use_control_socket = 1; break; 1080 case 'v': break; // compatibility no-op 1081 case 'q': do_vibrate = 0; break; 1082 case 'p': do_fb = 1; break; 1083 case 'P': do_update_progress = 1; break; 1084 case 'R': is_remote_mode = 1; break; 1085 case 'B': do_broadcast = 1; break; 1086 case 'V': version = optarg; break; 1087 case '?': printf("\n"); 1088 case 'h': 1089 usage(); 1090 exit(1); 1091 } 1092 } 1093 1094 if ((do_zip_file || do_add_date || do_update_progress || do_broadcast) && !use_outfile) { 1095 usage(); 1096 exit(1); 1097 } 1098 1099 if (use_control_socket && !do_zip_file) { 1100 usage(); 1101 exit(1); 1102 } 1103 1104 if (do_update_progress && !do_broadcast) { 1105 usage(); 1106 exit(1); 1107 } 1108 1109 if (is_remote_mode && (do_update_progress || !do_broadcast || !do_zip_file || !do_add_date)) { 1110 usage(); 1111 exit(1); 1112 } 1113 1114 if (version != VERSION_DEFAULT) { 1115 usage(); 1116 exit(1); 1117 } 1118 1119 MYLOGI("bugreport format version: %s\n", version.c_str()); 1120 1121 do_early_screenshot = do_update_progress; 1122 1123 // If we are going to use a socket, do it as early as possible 1124 // to avoid timeouts from bugreport. 1125 if (use_socket) { 1126 redirect_to_socket(stdout, "dumpstate"); 1127 } 1128 1129 if (use_control_socket) { 1130 MYLOGD("Opening control socket\n"); 1131 control_socket_fd = open_socket("dumpstate"); 1132 } 1133 1134 /* full path of the directory where the bugreport files will be written */ 1135 std::string bugreport_dir; 1136 1137 /* full path of the temporary file containing the bugreport */ 1138 std::string tmp_path; 1139 1140 /* full path of the file containing the dumpstate logs*/ 1141 std::string log_path; 1142 1143 /* full path of the systrace file, when enabled */ 1144 std::string systrace_path; 1145 1146 /* full path of the temporary file containing the screenshot (when requested) */ 1147 std::string screenshot_path; 1148 1149 /* base name (without suffix or extensions) of the bugreport files */ 1150 std::string base_name; 1151 1152 /* suffix of the bugreport files - it's typically the date (when invoked with -d), 1153 * although it could be changed by the user using a system property */ 1154 std::string suffix; 1155 1156 /* pointer to the actual path, be it zip or text */ 1157 std::string path; 1158 1159 /* pointer to the zipped file */ 1160 std::unique_ptr<FILE, int(*)(FILE*)> zip_file(NULL, fclose); 1161 1162 /* redirect output if needed */ 1163 bool is_redirecting = !use_socket && use_outfile; 1164 1165 if (is_redirecting) { 1166 bugreport_dir = dirname(use_outfile); 1167 base_name = basename(use_outfile); 1168 if (do_add_date) { 1169 char date[80]; 1170 strftime(date, sizeof(date), "%Y-%m-%d-%H-%M-%S", localtime(&now)); 1171 suffix = date; 1172 } else { 1173 suffix = "undated"; 1174 } 1175 char build_id[PROPERTY_VALUE_MAX]; 1176 property_get("ro.build.id", build_id, "UNKNOWN_BUILD"); 1177 base_name = base_name + "-" + build_id; 1178 if (do_fb) { 1179 // TODO: if dumpstate was an object, the paths could be internal variables and then 1180 // we could have a function to calculate the derived values, such as: 1181 // screenshot_path = GetPath(".png"); 1182 screenshot_path = bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1183 } 1184 tmp_path = bugreport_dir + "/" + base_name + "-" + suffix + ".tmp"; 1185 log_path = bugreport_dir + "/dumpstate_log-" + suffix + "-" 1186 + std::to_string(getpid()) + ".txt"; 1187 systrace_path = bugreport_dir + "/systrace-" + suffix + ".txt"; 1188 1189 MYLOGD("Bugreport dir: %s\n" 1190 "Base name: %s\n" 1191 "Suffix: %s\n" 1192 "Log path: %s\n" 1193 "Temporary path: %s\n" 1194 "Screenshot path: %s\n", 1195 bugreport_dir.c_str(), base_name.c_str(), suffix.c_str(), 1196 log_path.c_str(), tmp_path.c_str(), screenshot_path.c_str()); 1197 1198 if (do_zip_file) { 1199 path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1200 MYLOGD("Creating initial .zip file (%s)\n", path.c_str()); 1201 create_parent_dirs(path.c_str()); 1202 zip_file.reset(fopen(path.c_str(), "wb")); 1203 if (!zip_file) { 1204 MYLOGE("fopen(%s, 'wb'): %s\n", path.c_str(), strerror(errno)); 1205 do_zip_file = 0; 1206 } else { 1207 zip_writer.reset(new ZipWriter(zip_file.get())); 1208 } 1209 add_text_zip_entry("version.txt", version); 1210 } 1211 1212 if (do_update_progress) { 1213 std::vector<std::string> am_args = { 1214 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1215 "--es", "android.intent.extra.NAME", suffix, 1216 "--ei", "android.intent.extra.ID", std::to_string(id), 1217 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1218 "--ei", "android.intent.extra.MAX", std::to_string(WEIGHT_TOTAL), 1219 }; 1220 send_broadcast("android.intent.action.BUGREPORT_STARTED", am_args); 1221 } 1222 } 1223 1224 /* read /proc/cmdline before dropping root */ 1225 FILE *cmdline = fopen("/proc/cmdline", "re"); 1226 if (cmdline) { 1227 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 1228 fclose(cmdline); 1229 } 1230 1231 /* open the vibrator before dropping root */ 1232 std::unique_ptr<FILE, int(*)(FILE*)> vibrator(NULL, fclose); 1233 if (do_vibrate) { 1234 vibrator.reset(fopen("/sys/class/timed_output/vibrator/enable", "we")); 1235 if (vibrator) { 1236 vibrate(vibrator.get(), 150); 1237 } 1238 } 1239 1240 if (do_fb && do_early_screenshot) { 1241 if (screenshot_path.empty()) { 1242 // should not have happened 1243 MYLOGE("INTERNAL ERROR: skipping early screenshot because path was not set\n"); 1244 } else { 1245 MYLOGI("taking early screenshot\n"); 1246 take_screenshot(screenshot_path); 1247 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 1248 if (chown(screenshot_path.c_str(), AID_SHELL, AID_SHELL)) { 1249 MYLOGE("Unable to change ownership of screenshot file %s: %s\n", 1250 screenshot_path.c_str(), strerror(errno)); 1251 } 1252 } 1253 } 1254 1255 if (do_zip_file) { 1256 if (chown(path.c_str(), AID_SHELL, AID_SHELL)) { 1257 MYLOGE("Unable to change ownership of zip file %s: %s\n", path.c_str(), strerror(errno)); 1258 } 1259 } 1260 1261 if (is_redirecting) { 1262 redirect_to_file(stderr, const_cast<char*>(log_path.c_str())); 1263 if (chown(log_path.c_str(), AID_SHELL, AID_SHELL)) { 1264 MYLOGE("Unable to change ownership of dumpstate log file %s: %s\n", 1265 log_path.c_str(), strerror(errno)); 1266 } 1267 /* TODO: rather than generating a text file now and zipping it later, 1268 it would be more efficient to redirect stdout to the zip entry 1269 directly, but the libziparchive doesn't support that option yet. */ 1270 redirect_to_file(stdout, const_cast<char*>(tmp_path.c_str())); 1271 if (chown(tmp_path.c_str(), AID_SHELL, AID_SHELL)) { 1272 MYLOGE("Unable to change ownership of temporary bugreport file %s: %s\n", 1273 tmp_path.c_str(), strerror(errno)); 1274 } 1275 } 1276 // NOTE: there should be no stdout output until now, otherwise it would break the header. 1277 // In particular, DurationReport objects should be created passing 'title, NULL', so their 1278 // duration is logged into MYLOG instead. 1279 print_header(version); 1280 1281 // Dumps systrace right away, otherwise it will be filled with unnecessary events. 1282 dump_systrace(systrace_path); 1283 1284 // Invoking the following dumpsys calls before dump_traces() to try and 1285 // keep the system stats as close to its initial state as possible. 1286 run_command_as_shell("DUMPSYS MEMINFO", 30, "dumpsys", "-t", "30", "meminfo", "-a", NULL); 1287 run_command_as_shell("DUMPSYS CPUINFO", 10, "dumpsys", "cpuinfo", "-a", NULL); 1288 1289 /* collect stack traces from Dalvik and native processes (needs root) */ 1290 dump_traces_path = dump_traces(); 1291 1292 /* Get the tombstone fds, recovery files, and mount info here while we are running as root. */ 1293 get_tombstone_fds(tombstone_data); 1294 add_dir(RECOVERY_DIR, true); 1295 add_dir(RECOVERY_DATA_DIR, true); 1296 add_dir(LOGPERSIST_DATA_DIR, false); 1297 add_mountinfo(); 1298 1299 if (!drop_root_user()) { 1300 return -1; 1301 } 1302 1303 dumpstate(do_early_screenshot ? "": screenshot_path, version); 1304 1305 /* close output if needed */ 1306 if (is_redirecting) { 1307 fclose(stdout); 1308 } 1309 1310 /* rename or zip the (now complete) .tmp file to its final location */ 1311 if (use_outfile) { 1312 1313 /* check if user changed the suffix using system properties */ 1314 char key[PROPERTY_KEY_MAX]; 1315 char value[PROPERTY_VALUE_MAX]; 1316 snprintf(key, sizeof(key), "dumpstate.%d.name", getpid()); 1317 property_get(key, value, ""); 1318 bool change_suffix= false; 1319 if (value[0]) { 1320 /* must whitelist which characters are allowed, otherwise it could cross directories */ 1321 std::regex valid_regex("^[-_a-zA-Z0-9]+$"); 1322 if (std::regex_match(value, valid_regex)) { 1323 change_suffix = true; 1324 } else { 1325 MYLOGE("invalid suffix provided by user: %s\n", value); 1326 } 1327 } 1328 if (change_suffix) { 1329 MYLOGI("changing suffix from %s to %s\n", suffix.c_str(), value); 1330 suffix = value; 1331 if (!screenshot_path.empty()) { 1332 std::string new_screenshot_path = 1333 bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1334 if (rename(screenshot_path.c_str(), new_screenshot_path.c_str())) { 1335 MYLOGE("rename(%s, %s): %s\n", screenshot_path.c_str(), 1336 new_screenshot_path.c_str(), strerror(errno)); 1337 } else { 1338 screenshot_path = new_screenshot_path; 1339 } 1340 } 1341 } 1342 1343 bool do_text_file = true; 1344 if (do_zip_file) { 1345 std::string entry_name = base_name + "-" + suffix + ".txt"; 1346 MYLOGD("Adding main entry (%s) to .zip bugreport\n", entry_name.c_str()); 1347 if (!finish_zip_file(entry_name, tmp_path, now)) { 1348 MYLOGE("Failed to finish zip file; sending text bugreport instead\n"); 1349 do_text_file = true; 1350 } else { 1351 do_text_file = false; 1352 // Since zip file is already created, it needs to be renamed. 1353 std::string new_path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1354 if (path != new_path) { 1355 MYLOGD("Renaming zip file from %s to %s\n", path.c_str(), new_path.c_str()); 1356 if (rename(path.c_str(), new_path.c_str())) { 1357 MYLOGE("rename(%s, %s): %s\n", path.c_str(), 1358 new_path.c_str(), strerror(errno)); 1359 } else { 1360 path = new_path; 1361 } 1362 } 1363 } 1364 } 1365 if (do_text_file) { 1366 path = bugreport_dir + "/" + base_name + "-" + suffix + ".txt"; 1367 MYLOGD("Generating .txt bugreport at %s from %s\n", path.c_str(), tmp_path.c_str()); 1368 if (rename(tmp_path.c_str(), path.c_str())) { 1369 MYLOGE("rename(%s, %s): %s\n", tmp_path.c_str(), path.c_str(), strerror(errno)); 1370 path.clear(); 1371 } 1372 } 1373 if (use_control_socket) { 1374 if (do_text_file) { 1375 dprintf(control_socket_fd, "FAIL:could not create zip file, check %s " 1376 "for more details\n", log_path.c_str()); 1377 } else { 1378 dprintf(control_socket_fd, "OK:%s\n", path.c_str()); 1379 } 1380 } 1381 } 1382 1383 /* vibrate a few but shortly times to let user know it's finished */ 1384 if (vibrator) { 1385 for (int i = 0; i < 3; i++) { 1386 vibrate(vibrator.get(), 75); 1387 usleep((75 + 50) * 1000); 1388 } 1389 } 1390 1391 /* tell activity manager we're done */ 1392 if (do_broadcast) { 1393 if (!path.empty()) { 1394 MYLOGI("Final bugreport path: %s\n", path.c_str()); 1395 std::vector<std::string> am_args = { 1396 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1397 "--ei", "android.intent.extra.ID", std::to_string(id), 1398 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1399 "--ei", "android.intent.extra.MAX", std::to_string(weight_total), 1400 "--es", "android.intent.extra.BUGREPORT", path, 1401 "--es", "android.intent.extra.DUMPSTATE_LOG", log_path 1402 }; 1403 if (do_fb) { 1404 am_args.push_back("--es"); 1405 am_args.push_back("android.intent.extra.SCREENSHOT"); 1406 am_args.push_back(screenshot_path); 1407 } 1408 if (is_remote_mode) { 1409 am_args.push_back("--es"); 1410 am_args.push_back("android.intent.extra.REMOTE_BUGREPORT_HASH"); 1411 am_args.push_back(SHA256_file_hash(path)); 1412 send_broadcast("android.intent.action.REMOTE_BUGREPORT_FINISHED", am_args); 1413 } else { 1414 send_broadcast("android.intent.action.BUGREPORT_FINISHED", am_args); 1415 } 1416 } else { 1417 MYLOGE("Skipping finished broadcast because bugreport could not be generated\n"); 1418 } 1419 } 1420 1421 MYLOGD("Final progress: %d/%d (originally %d)\n", progress, weight_total, WEIGHT_TOTAL); 1422 MYLOGI("done\n"); 1423 1424 if (is_redirecting) { 1425 fclose(stderr); 1426 } 1427 1428 if (use_control_socket && control_socket_fd >= 0) { 1429 MYLOGD("Closing control socket\n"); 1430 close(control_socket_fd); 1431 } 1432 1433 return 0; 1434} 1435