dumpstate.cpp revision cc37b8ecc463a3e030d673ebdd0b1cb9c5eddab8
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-dev4"; 96 97/* gets the tombstone data, according to the bugreport type: if zipped gets all tombstones, 98 * otherwise gets just those modified in the last half an hour. */ 99static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) { 100 time_t thirty_minutes_ago = now - 60*30; 101 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 102 snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i); 103 int fd = TEMP_FAILURE_RETRY(open(data[i].name, 104 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 105 struct stat st; 106 if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) && 107 (zip_writer || (time_t) st.st_mtime >= thirty_minutes_ago)) { 108 data[i].fd = fd; 109 } else { 110 close(fd); 111 data[i].fd = -1; 112 } 113 } 114} 115 116// for_each_pid() callback to get mount info about a process. 117void do_mountinfo(int pid, const char *name) { 118 char path[PATH_MAX]; 119 120 // Gets the the content of the /proc/PID/ns/mnt link, so only unique mount points 121 // are added. 122 sprintf(path, "/proc/%d/ns/mnt", pid); 123 char linkname[PATH_MAX]; 124 ssize_t r = readlink(path, linkname, PATH_MAX); 125 if (r == -1) { 126 MYLOGE("Unable to read link for %s: %s\n", path, strerror(errno)); 127 return; 128 } 129 linkname[r] = '\0'; 130 131 if (mount_points.find(linkname) == mount_points.end()) { 132 // First time this mount point was found: add it 133 sprintf(path, "/proc/%d/mountinfo", pid); 134 if (add_zip_entry(ZIP_ROOT_DIR + path, path)) { 135 mount_points.insert(linkname); 136 } else { 137 MYLOGE("Unable to add mountinfo %s to zip file\n", path); 138 } 139 } 140} 141 142void add_mountinfo() { 143 if (!zip_writer) return; 144 const char *title = "MOUNT INFO"; 145 mount_points.clear(); 146 DurationReporter duration_reporter(title, NULL); 147 for_each_pid(do_mountinfo, NULL); 148 MYLOGD("%s: %d entries added to zip file\n", title, (int) mount_points.size()); 149} 150 151static void dump_dev_files(const char *title, const char *driverpath, const char *filename) 152{ 153 DIR *d; 154 struct dirent *de; 155 char path[PATH_MAX]; 156 157 d = opendir(driverpath); 158 if (d == NULL) { 159 return; 160 } 161 162 while ((de = readdir(d))) { 163 if (de->d_type != DT_LNK) { 164 continue; 165 } 166 snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename); 167 dump_file(title, path); 168 } 169 170 closedir(d); 171} 172 173static void dump_systrace(const std::string& systrace_path) { 174 if (!zip_writer) { 175 MYLOGD("Not dumping systrace because zip_writer is not set\n"); 176 return; 177 } 178 if (systrace_path.empty()) { 179 MYLOGE("Not dumping systrace because path is empty\n"); 180 return; 181 } 182 const char* path = "/sys/kernel/debug/tracing/tracing_on"; 183 long int is_tracing; 184 if (read_file_as_long(path, &is_tracing)) { 185 return; // error already logged 186 } 187 if (is_tracing <= 0) { 188 MYLOGD("Skipping systrace because '%s' content is '%ld'\n", path, is_tracing); 189 return; 190 } 191 192 MYLOGD("Running '/system/bin/atrace --async_dump -o %s', which can take several minutes", 193 systrace_path.c_str()); 194 if (run_command("SYSTRACE", 120, "/system/bin/atrace", "--async_dump", "-o", 195 systrace_path.c_str(), NULL)) { 196 MYLOGE("systrace timed out, its zip entry will be incomplete\n"); 197 // TODO: run_command tries to kill the process, but atrace doesn't die peacefully; ideally, 198 // we should call strace to stop itself, but there is no such option yet (just a 199 // --async_stop, which stops and dump 200 // if (run_command("SYSTRACE", 10, "/system/bin/atrace", "--kill", NULL)) { 201 // MYLOGE("could not stop systrace "); 202 // } 203 } 204 if (!add_zip_entry("systrace.txt", systrace_path)) { 205 MYLOGE("Unable to add systrace file %s to zip file\n", systrace_path.c_str()); 206 } else { 207 if (remove(systrace_path.c_str())) { 208 MYLOGE("Error removing systrace file %s: %s", systrace_path.c_str(), strerror(errno)); 209 } 210 } 211} 212 213static bool skip_not_stat(const char *path) { 214 static const char stat[] = "/stat"; 215 size_t len = strlen(path); 216 if (path[len - 1] == '/') { /* Directory? */ 217 return false; 218 } 219 return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */ 220} 221 222static bool skip_none(const char *path) { 223 return false; 224} 225 226static const char mmcblk0[] = "/sys/block/mmcblk0/"; 227unsigned long worst_write_perf = 20000; /* in KB/s */ 228 229// 230// stat offsets 231// Name units description 232// ---- ----- ----------- 233// read I/Os requests number of read I/Os processed 234#define __STAT_READ_IOS 0 235// read merges requests number of read I/Os merged with in-queue I/O 236#define __STAT_READ_MERGES 1 237// read sectors sectors number of sectors read 238#define __STAT_READ_SECTORS 2 239// read ticks milliseconds total wait time for read requests 240#define __STAT_READ_TICKS 3 241// write I/Os requests number of write I/Os processed 242#define __STAT_WRITE_IOS 4 243// write merges requests number of write I/Os merged with in-queue I/O 244#define __STAT_WRITE_MERGES 5 245// write sectors sectors number of sectors written 246#define __STAT_WRITE_SECTORS 6 247// write ticks milliseconds total wait time for write requests 248#define __STAT_WRITE_TICKS 7 249// in_flight requests number of I/Os currently in flight 250#define __STAT_IN_FLIGHT 8 251// io_ticks milliseconds total time this block device has been active 252#define __STAT_IO_TICKS 9 253// time_in_queue milliseconds total wait time for all requests 254#define __STAT_IN_QUEUE 10 255#define __STAT_NUMBER_FIELD 11 256// 257// read I/Os, write I/Os 258// ===================== 259// 260// These values increment when an I/O request completes. 261// 262// read merges, write merges 263// ========================= 264// 265// These values increment when an I/O request is merged with an 266// already-queued I/O request. 267// 268// read sectors, write sectors 269// =========================== 270// 271// These values count the number of sectors read from or written to this 272// block device. The "sectors" in question are the standard UNIX 512-byte 273// sectors, not any device- or filesystem-specific block size. The 274// counters are incremented when the I/O completes. 275#define SECTOR_SIZE 512 276// 277// read ticks, write ticks 278// ======================= 279// 280// These values count the number of milliseconds that I/O requests have 281// waited on this block device. If there are multiple I/O requests waiting, 282// these values will increase at a rate greater than 1000/second; for 283// example, if 60 read requests wait for an average of 30 ms, the read_ticks 284// field will increase by 60*30 = 1800. 285// 286// in_flight 287// ========= 288// 289// This value counts the number of I/O requests that have been issued to 290// the device driver but have not yet completed. It does not include I/O 291// requests that are in the queue but not yet issued to the device driver. 292// 293// io_ticks 294// ======== 295// 296// This value counts the number of milliseconds during which the device has 297// had I/O requests queued. 298// 299// time_in_queue 300// ============= 301// 302// This value counts the number of milliseconds that I/O requests have waited 303// on this block device. If there are multiple I/O requests waiting, this 304// value will increase as the product of the number of milliseconds times the 305// number of requests waiting (see "read ticks" above for an example). 306#define S_TO_MS 1000 307// 308 309static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) { 310 unsigned long long fields[__STAT_NUMBER_FIELD]; 311 bool z; 312 char *cp, *buffer = NULL; 313 size_t i = 0; 314 FILE *fp = fdopen(fd, "rb"); 315 getline(&buffer, &i, fp); 316 fclose(fp); 317 if (!buffer) { 318 return -errno; 319 } 320 i = strlen(buffer); 321 while ((i > 0) && (buffer[i - 1] == '\n')) { 322 buffer[--i] = '\0'; 323 } 324 if (!*buffer) { 325 free(buffer); 326 return 0; 327 } 328 z = true; 329 for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) { 330 fields[i] = strtoull(cp, &cp, 10); 331 if (fields[i] != 0) { 332 z = false; 333 } 334 } 335 if (z) { /* never accessed */ 336 free(buffer); 337 return 0; 338 } 339 340 if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) { 341 path += sizeof(mmcblk0) - 1; 342 } 343 344 printf("%s: %s\n", path, buffer); 345 free(buffer); 346 347 if (fields[__STAT_IO_TICKS]) { 348 unsigned long read_perf = 0; 349 unsigned long read_ios = 0; 350 if (fields[__STAT_READ_TICKS]) { 351 unsigned long long divisor = fields[__STAT_READ_TICKS] 352 * fields[__STAT_IO_TICKS]; 353 read_perf = ((unsigned long long)SECTOR_SIZE 354 * fields[__STAT_READ_SECTORS] 355 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 356 / divisor; 357 read_ios = ((unsigned long long)S_TO_MS * fields[__STAT_READ_IOS] 358 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 359 / divisor; 360 } 361 362 unsigned long write_perf = 0; 363 unsigned long write_ios = 0; 364 if (fields[__STAT_WRITE_TICKS]) { 365 unsigned long long divisor = fields[__STAT_WRITE_TICKS] 366 * fields[__STAT_IO_TICKS]; 367 write_perf = ((unsigned long long)SECTOR_SIZE 368 * fields[__STAT_WRITE_SECTORS] 369 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 370 / divisor; 371 write_ios = ((unsigned long long)S_TO_MS * fields[__STAT_WRITE_IOS] 372 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 373 / divisor; 374 } 375 376 unsigned queue = (fields[__STAT_IN_QUEUE] 377 + (fields[__STAT_IO_TICKS] >> 1)) 378 / fields[__STAT_IO_TICKS]; 379 380 if (!write_perf && !write_ios) { 381 printf("%s: perf(ios) rd: %luKB/s(%lu/s) q: %u\n", 382 path, read_perf, read_ios, queue); 383 } else { 384 printf("%s: perf(ios) rd: %luKB/s(%lu/s) wr: %luKB/s(%lu/s) q: %u\n", 385 path, read_perf, read_ios, write_perf, write_ios, queue); 386 } 387 388 /* bugreport timeout factor adjustment */ 389 if ((write_perf > 1) && (write_perf < worst_write_perf)) { 390 worst_write_perf = write_perf; 391 } 392 } 393 return 0; 394} 395 396/* Copied policy from system/core/logd/LogBuffer.cpp */ 397 398#define LOG_BUFFER_SIZE (256 * 1024) 399#define LOG_BUFFER_MIN_SIZE (64 * 1024UL) 400#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) 401 402static bool valid_size(unsigned long value) { 403 if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) { 404 return false; 405 } 406 407 long pages = sysconf(_SC_PHYS_PAGES); 408 if (pages < 1) { 409 return true; 410 } 411 412 long pagesize = sysconf(_SC_PAGESIZE); 413 if (pagesize <= 1) { 414 pagesize = PAGE_SIZE; 415 } 416 417 // maximum memory impact a somewhat arbitrary ~3% 418 pages = (pages + 31) / 32; 419 unsigned long maximum = pages * pagesize; 420 421 if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) { 422 return true; 423 } 424 425 return value <= maximum; 426} 427 428static unsigned long property_get_size(const char *key) { 429 unsigned long value; 430 char *cp, property[PROPERTY_VALUE_MAX]; 431 432 property_get(key, property, ""); 433 value = strtoul(property, &cp, 10); 434 435 switch(*cp) { 436 case 'm': 437 case 'M': 438 value *= 1024; 439 /* FALLTHRU */ 440 case 'k': 441 case 'K': 442 value *= 1024; 443 /* FALLTHRU */ 444 case '\0': 445 break; 446 447 default: 448 value = 0; 449 } 450 451 if (!valid_size(value)) { 452 value = 0; 453 } 454 455 return value; 456} 457 458/* timeout in ms */ 459static unsigned long logcat_timeout(const char *name) { 460 static const char global_tuneable[] = "persist.logd.size"; // Settings App 461 static const char global_default[] = "ro.logd.size"; // BoardConfig.mk 462 char key[PROP_NAME_MAX]; 463 unsigned long property_size, default_size; 464 465 default_size = property_get_size(global_tuneable); 466 if (!default_size) { 467 default_size = property_get_size(global_default); 468 } 469 470 snprintf(key, sizeof(key), "%s.%s", global_tuneable, name); 471 property_size = property_get_size(key); 472 473 if (!property_size) { 474 snprintf(key, sizeof(key), "%s.%s", global_default, name); 475 property_size = property_get_size(key); 476 } 477 478 if (!property_size) { 479 property_size = default_size; 480 } 481 482 if (!property_size) { 483 property_size = LOG_BUFFER_SIZE; 484 } 485 486 /* Engineering margin is ten-fold our guess */ 487 return 10 * (property_size + worst_write_perf) / worst_write_perf; 488} 489 490/* End copy from system/core/logd/LogBuffer.cpp */ 491 492/* dumps the current system state to stdout */ 493static void print_header(std::string version) { 494 char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; 495 char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; 496 char network[PROPERTY_VALUE_MAX], date[80]; 497 498 property_get("ro.build.display.id", build, "(unknown)"); 499 property_get("ro.build.fingerprint", fingerprint, "(unknown)"); 500 property_get("ro.build.type", build_type, "(unknown)"); 501 property_get("ro.baseband", radio, "(unknown)"); 502 property_get("ro.bootloader", bootloader, "(unknown)"); 503 property_get("gsm.operator.alpha", network, "(unknown)"); 504 strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); 505 506 printf("========================================================\n"); 507 printf("== dumpstate: %s\n", date); 508 printf("========================================================\n"); 509 510 printf("\n"); 511 printf("Build: %s\n", build); 512 printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */ 513 printf("Bootloader: %s\n", bootloader); 514 printf("Radio: %s\n", radio); 515 printf("Network: %s\n", network); 516 517 printf("Kernel: "); 518 dump_file(NULL, "/proc/version"); 519 printf("Command line: %s\n", strtok(cmdline_buf, "\n")); 520 printf("Bugreport format version: %s\n", version.c_str()); 521 printf("Dumpstate info: id=%lu pid=%d\n", id, getpid()); 522 printf("\n"); 523} 524 525/* adds a new entry to the existing zip file. */ 526static bool add_zip_entry_from_fd(const std::string& entry_name, int fd) { 527 if (!zip_writer) { 528 MYLOGD("Not adding zip entry %s from fd because zip_writer is not set\n", 529 entry_name.c_str()); 530 return false; 531 } 532 // Logging statement below is useful to time how long each entry takes, but it's too verbose. 533 // MYLOGD("Adding zip entry %s\n", entry_name.c_str()); 534 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), 535 ZipWriter::kCompress, get_mtime(fd, now)); 536 if (err) { 537 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 538 ZipWriter::ErrorCodeString(err)); 539 return false; 540 } 541 542 std::vector<uint8_t> buffer(65536); 543 while (1) { 544 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer.data(), sizeof(buffer))); 545 if (bytes_read == 0) { 546 break; 547 } else if (bytes_read == -1) { 548 MYLOGE("read(%s): %s\n", entry_name.c_str(), strerror(errno)); 549 return false; 550 } 551 err = zip_writer->WriteBytes(buffer.data(), bytes_read); 552 if (err) { 553 MYLOGE("zip_writer->WriteBytes(): %s\n", ZipWriter::ErrorCodeString(err)); 554 return false; 555 } 556 } 557 558 err = zip_writer->FinishEntry(); 559 if (err) { 560 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 561 return false; 562 } 563 564 return true; 565} 566 567/* adds a new entry to the existing zip file. */ 568static bool add_zip_entry(const std::string& entry_name, const std::string& entry_path) { 569 ScopedFd fd(TEMP_FAILURE_RETRY(open(entry_path.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC))); 570 if (fd.get() == -1) { 571 MYLOGE("open(%s): %s\n", entry_path.c_str(), strerror(errno)); 572 return false; 573 } 574 575 return add_zip_entry_from_fd(entry_name, fd.get()); 576} 577 578/* adds a file to the existing zipped bugreport */ 579static int _add_file_from_fd(const char *title, const char *path, int fd) { 580 return add_zip_entry_from_fd(ZIP_ROOT_DIR + path, fd) ? 0 : 1; 581} 582 583/* adds all files from a directory to the zipped bugreport file */ 584void add_dir(const char *dir, bool recursive) { 585 if (!zip_writer) { 586 MYLOGD("Not adding dir %s because zip_writer is not set\n", dir); 587 return; 588 } 589 MYLOGD("Adding dir %s (recursive: %d)\n", dir, recursive); 590 DurationReporter duration_reporter(dir, NULL); 591 dump_files(NULL, dir, recursive ? skip_none : is_dir, _add_file_from_fd); 592} 593 594/* adds a text entry entry to the existing zip file. */ 595static bool add_text_zip_entry(const std::string& entry_name, const std::string& content) { 596 if (!zip_writer) { 597 MYLOGD("Not adding text zip entry %s because zip_writer is not set\n", entry_name.c_str()); 598 return false; 599 } 600 MYLOGD("Adding zip text entry %s\n", entry_name.c_str()); 601 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), ZipWriter::kCompress, now); 602 if (err) { 603 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 604 ZipWriter::ErrorCodeString(err)); 605 return false; 606 } 607 608 err = zip_writer->WriteBytes(content.c_str(), content.length()); 609 if (err) { 610 MYLOGE("zip_writer->WriteBytes(%s): %s\n", entry_name.c_str(), 611 ZipWriter::ErrorCodeString(err)); 612 return false; 613 } 614 615 err = zip_writer->FinishEntry(); 616 if (err) { 617 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 618 return false; 619 } 620 621 return true; 622} 623 624static void dumpstate(const std::string& screenshot_path, const std::string& version) { 625 DurationReporter duration_reporter("DUMPSTATE"); 626 unsigned long timeout; 627 628 dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version"); 629 run_command("UPTIME", 10, "uptime", NULL); 630 dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd); 631 dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd"); 632 dump_file("MEMORY INFO", "/proc/meminfo"); 633 run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-H", NULL); 634 run_command("PROCRANK", 20, SU_PATH, "root", "procrank", NULL); 635 dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat"); 636 dump_file("VMALLOC INFO", "/proc/vmallocinfo"); 637 dump_file("SLAB INFO", "/proc/slabinfo"); 638 dump_file("ZONEINFO", "/proc/zoneinfo"); 639 dump_file("PAGETYPEINFO", "/proc/pagetypeinfo"); 640 dump_file("BUDDYINFO", "/proc/buddyinfo"); 641 dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index"); 642 643 dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources"); 644 dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); 645 dump_file("KERNEL SYNC", "/d/sync"); 646 647 run_command("PROCESSES AND THREADS", 10, "ps", "-Z", "-t", "-p", "-P", NULL); 648 run_command("LIBRANK", 10, SU_PATH, "root", "librank", NULL); 649 650 run_command("PRINTENV", 10, "printenv", NULL); 651 run_command("NETSTAT", 10, "netstat", "-n", NULL); 652 run_command("LSMOD", 10, "lsmod", NULL); 653 654 do_dmesg(); 655 656 run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL); 657 for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES"); 658 for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); 659 for_each_pid(show_showtime, "PROCESS TIMES (pid cmd user system iowait+percentage)"); 660 661 if (!screenshot_path.empty()) { 662 MYLOGI("taking late screenshot\n"); 663 take_screenshot(screenshot_path); 664 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 665 } 666 667 // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); 668 // calculate timeout 669 timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash"); 670 if (timeout < 20000) { 671 timeout = 20000; 672 } 673 run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime", 674 "-v", "printable", 675 "-d", 676 "*:v", NULL); 677 timeout = logcat_timeout("events"); 678 if (timeout < 20000) { 679 timeout = 20000; 680 } 681 run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events", 682 "-v", "threadtime", 683 "-v", "printable", 684 "-d", 685 "*:v", NULL); 686 timeout = logcat_timeout("radio"); 687 if (timeout < 20000) { 688 timeout = 20000; 689 } 690 run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio", 691 "-v", "threadtime", 692 "-v", "printable", 693 "-d", 694 "*:v", NULL); 695 696 run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL); 697 698 run_command("RAFT LOGS", 600, SU_PATH, "root", "logcompressor", "-r", RAFT_DIR, NULL); 699 700 /* show the traces we collected in main(), if that was done */ 701 if (dump_traces_path != NULL) { 702 dump_file("VM TRACES JUST NOW", dump_traces_path); 703 } 704 705 /* only show ANR traces if they're less than 15 minutes old */ 706 struct stat st; 707 char anr_traces_path[PATH_MAX]; 708 property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); 709 if (!anr_traces_path[0]) { 710 printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); 711 } else { 712 int fd = TEMP_FAILURE_RETRY(open(anr_traces_path, 713 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 714 if (fd < 0) { 715 printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); 716 } else { 717 dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd); 718 } 719 } 720 721 /* slow traces for slow operations */ 722 if (anr_traces_path[0] != 0) { 723 int tail = strlen(anr_traces_path)-1; 724 while (tail > 0 && anr_traces_path[tail] != '/') { 725 tail--; 726 } 727 int i = 0; 728 while (1) { 729 sprintf(anr_traces_path+tail+1, "slow%02d.txt", i); 730 if (stat(anr_traces_path, &st)) { 731 // No traces file at this index, done with the files. 732 break; 733 } 734 dump_file("VM TRACES WHEN SLOW", anr_traces_path); 735 i++; 736 } 737 } 738 739 int dumped = 0; 740 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 741 if (tombstone_data[i].fd != -1) { 742 const char *name = tombstone_data[i].name; 743 int fd = tombstone_data[i].fd; 744 dumped = 1; 745 if (zip_writer) { 746 if (!add_zip_entry_from_fd(ZIP_ROOT_DIR + name, fd)) { 747 MYLOGE("Unable to add tombstone %s to zip file\n", name); 748 } 749 } else { 750 dump_file_from_fd("TOMBSTONE", name, fd); 751 } 752 close(fd); 753 tombstone_data[i].fd = -1; 754 } 755 } 756 if (!dumped) { 757 printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR); 758 } 759 760 dump_file("NETWORK DEV INFO", "/proc/net/dev"); 761 dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all"); 762 dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt"); 763 dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl"); 764 dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats"); 765 766 if (!stat(PSTORE_LAST_KMSG, &st)) { 767 /* Also TODO: Make console-ramoops CAP_SYSLOG protected. */ 768 dump_file("LAST KMSG", PSTORE_LAST_KMSG); 769 } else { 770 /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */ 771 dump_file("LAST KMSG", "/proc/last_kmsg"); 772 } 773 774 /* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */ 775 run_command("LAST LOGCAT", 10, "logcat", "-L", 776 "-b", "all", 777 "-v", "threadtime", 778 "-v", "printable", 779 "-d", 780 "*:v", NULL); 781 782 /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */ 783 784 run_command("NETWORK INTERFACES", 10, "ip", "link", NULL); 785 786 run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL); 787 run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL); 788 789 run_command("IP RULES", 10, "ip", "rule", "show", NULL); 790 run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL); 791 792 dump_route_tables(); 793 794 run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL); 795 run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL); 796 797 run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL); 798 run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL); 799 run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL); 800 /* no ip6 nat */ 801 run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL); 802 run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL); 803 804 run_command("WIFI NETWORKS", 20, 805 SU_PATH, "root", "wpa_cli", "IFNAME=wlan0", "list_networks", NULL); 806 807#ifdef FWDUMP_bcmdhd 808 run_command("ND OFFLOAD TABLE", 5, 809 SU_PATH, "root", "wlutil", "nd_hostip", NULL); 810 811 run_command("DUMP WIFI INTERNAL COUNTERS (1)", 20, 812 SU_PATH, "root", "wlutil", "counters", NULL); 813 814 run_command("ND OFFLOAD STATUS (1)", 5, 815 SU_PATH, "root", "wlutil", "nd_status", NULL); 816 817#endif 818 dump_file("INTERRUPTS (1)", "/proc/interrupts"); 819 820 run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "connectivity", "--diag", NULL); 821 822#ifdef FWDUMP_bcmdhd 823 run_command("DUMP WIFI STATUS", 20, 824 SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL); 825 826 run_command("DUMP WIFI INTERNAL COUNTERS (2)", 20, 827 SU_PATH, "root", "wlutil", "counters", NULL); 828 829 run_command("ND OFFLOAD STATUS (2)", 5, 830 SU_PATH, "root", "wlutil", "nd_status", NULL); 831#endif 832 dump_file("INTERRUPTS (2)", "/proc/interrupts"); 833 834 print_properties(); 835 836 run_command("VOLD DUMP", 10, "vdc", "dump", NULL); 837 run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); 838 839 run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL); 840 841 run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); 842 843 printf("------ BACKLIGHTS ------\n"); 844 printf("LCD brightness="); 845 dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); 846 printf("Button brightness="); 847 dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); 848 printf("Keyboard brightness="); 849 dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); 850 printf("ALS mode="); 851 dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); 852 printf("LCD driver registers:\n"); 853 dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); 854 printf("\n"); 855 856 /* Binder state is expensive to look at as it uses a lot of memory. */ 857 dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log"); 858 dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log"); 859 dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions"); 860 dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats"); 861 dump_file("BINDER STATE", "/sys/kernel/debug/binder/state"); 862 863 printf("========================================================\n"); 864 printf("== Board\n"); 865 printf("========================================================\n"); 866 867 dumpstate_board(); 868 printf("\n"); 869 870 /* Migrate the ril_dumpstate to a dumpstate_board()? */ 871 char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0}; 872 property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30"); 873 if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) { 874 if (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) { 875 // su does not exist on user builds, so try running without it. 876 // This way any implementations of vril-dump that do not require 877 // root can run on user builds. 878 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 879 "vril-dump", NULL); 880 } else { 881 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 882 SU_PATH, "root", "vril-dump", NULL); 883 } 884 } 885 886 printf("========================================================\n"); 887 printf("== Android Framework Services\n"); 888 printf("========================================================\n"); 889 890 run_command("DUMPSYS", 60, "dumpsys", "-t", "60", "--skip", "meminfo,cpuinfo", NULL); 891 892 printf("========================================================\n"); 893 printf("== Checkins\n"); 894 printf("========================================================\n"); 895 896 run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "batterystats", "-c", NULL); 897 run_command("CHECKIN MEMINFO", 30, "dumpsys", "meminfo", "--checkin", NULL); 898 run_command("CHECKIN NETSTATS", 30, "dumpsys", "netstats", "--checkin", NULL); 899 run_command("CHECKIN PROCSTATS", 30, "dumpsys", "procstats", "-c", NULL); 900 run_command("CHECKIN USAGESTATS", 30, "dumpsys", "usagestats", "-c", NULL); 901 run_command("CHECKIN PACKAGE", 30, "dumpsys", "package", "--checkin", NULL); 902 903 printf("========================================================\n"); 904 printf("== Running Application Activities\n"); 905 printf("========================================================\n"); 906 907 run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL); 908 909 printf("========================================================\n"); 910 printf("== Running Application Services\n"); 911 printf("========================================================\n"); 912 913 run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL); 914 915 printf("========================================================\n"); 916 printf("== Running Application Providers\n"); 917 printf("========================================================\n"); 918 919 run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL); 920 921 922 printf("========================================================\n"); 923 printf("== Final progress (pid %d): %d/%d (originally %d)\n", 924 getpid(), progress, weight_total, WEIGHT_TOTAL); 925 printf("========================================================\n"); 926 printf("== dumpstate: done\n"); 927 printf("========================================================\n"); 928} 929 930static void usage() { 931 fprintf(stderr, 932 "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] " 933 "[-z]] [-s] [-q] [-B] [-P] [-R] [-V version]\n" 934 " -b: play sound file instead of vibrate, at beginning of job\n" 935 " -e: play sound file instead of vibrate, at end of job\n" 936 " -o: write to file (instead of stdout)\n" 937 " -d: append date to filename (requires -o)\n" 938 " -p: capture screenshot to filename.png (requires -o)\n" 939 " -z: generates zipped file (requires -o)\n" 940 " -s: write output to control socket (for init)\n" 941 " -q: disable vibrate\n" 942 " -B: send broadcast when finished (requires -o)\n" 943 " -P: send broadcast when started and update system properties on " 944 "progress (requires -o and -B)\n" 945 " -R: take bugreport in remote mode (requires -o, -z, -d and -B, " 946 "shouldn't be used with -P)\n" 947 " -V: sets the bugreport format version (valid values: %s)\n", 948 VERSION_DEFAULT.c_str()); 949} 950 951static void sigpipe_handler(int n) { 952 // don't complain to stderr or stdout 953 _exit(EXIT_FAILURE); 954} 955 956/* adds the temporary report to the existing .zip file, closes the .zip file, and removes the 957 temporary file. 958 */ 959static bool finish_zip_file(const std::string& bugreport_name, const std::string& bugreport_path, 960 time_t now) { 961 if (!add_zip_entry(bugreport_name, bugreport_path)) { 962 MYLOGE("Failed to add text entry to .zip file\n"); 963 return false; 964 } 965 if (!add_text_zip_entry("main_entry.txt", bugreport_name)) { 966 MYLOGE("Failed to add main_entry.txt to .zip file\n"); 967 return false; 968 } 969 970 int32_t err = zip_writer->Finish(); 971 if (err) { 972 MYLOGE("zip_writer->Finish(): %s\n", ZipWriter::ErrorCodeString(err)); 973 return false; 974 } 975 976 return true; 977} 978 979static std::string SHA256_file_hash(std::string filepath) { 980 ScopedFd fd(TEMP_FAILURE_RETRY(open(filepath.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC 981 | O_NOFOLLOW))); 982 if (fd.get() == -1) { 983 MYLOGE("open(%s): %s\n", filepath.c_str(), strerror(errno)); 984 return NULL; 985 } 986 987 SHA256_CTX ctx; 988 SHA256_init(&ctx); 989 990 std::vector<uint8_t> buffer(65536); 991 while (1) { 992 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd.get(), buffer.data(), buffer.size())); 993 if (bytes_read == 0) { 994 break; 995 } else if (bytes_read == -1) { 996 MYLOGE("read(%s): %s\n", filepath.c_str(), strerror(errno)); 997 return NULL; 998 } 999 1000 SHA256_update(&ctx, buffer.data(), bytes_read); 1001 } 1002 1003 uint8_t hash[SHA256_DIGEST_SIZE]; 1004 memcpy(hash, SHA256_final(&ctx), SHA256_DIGEST_SIZE); 1005 char hash_buffer[SHA256_DIGEST_SIZE * 2 + 1]; 1006 for(size_t i = 0; i < SHA256_DIGEST_SIZE; i++) { 1007 sprintf(hash_buffer + (i * 2), "%02x", hash[i]); 1008 } 1009 hash_buffer[sizeof(hash_buffer) - 1] = 0; 1010 return std::string(hash_buffer); 1011} 1012 1013int main(int argc, char *argv[]) { 1014 struct sigaction sigact; 1015 int do_add_date = 0; 1016 int do_zip_file = 0; 1017 int do_vibrate = 1; 1018 char* use_outfile = 0; 1019 int use_socket = 0; 1020 int do_fb = 0; 1021 int do_broadcast = 0; 1022 int do_early_screenshot = 0; 1023 int is_remote_mode = 0; 1024 std::string version = VERSION_DEFAULT; 1025 1026 now = time(NULL); 1027 1028 if (getuid() != 0) { 1029 // Old versions of the adb client would call the 1030 // dumpstate command directly. Newer clients 1031 // call /system/bin/bugreport instead. If we detect 1032 // we're being called incorrectly, then exec the 1033 // correct program. 1034 return execl("/system/bin/bugreport", "/system/bin/bugreport", NULL); 1035 } 1036 1037 MYLOGI("begin\n"); 1038 1039 /* gets the sequential id */ 1040 char last_id[PROPERTY_VALUE_MAX]; 1041 property_get("dumpstate.last_id", last_id, "0"); 1042 id = strtoul(last_id, NULL, 10) + 1; 1043 sprintf(last_id, "%lu", id); 1044 property_set("dumpstate.last_id", last_id); 1045 MYLOGI("dumpstate id: %lu\n", id); 1046 1047 /* clear SIGPIPE handler */ 1048 memset(&sigact, 0, sizeof(sigact)); 1049 sigact.sa_handler = sigpipe_handler; 1050 sigaction(SIGPIPE, &sigact, NULL); 1051 1052 /* set as high priority, and protect from OOM killer */ 1053 setpriority(PRIO_PROCESS, 0, -20); 1054 FILE *oom_adj = fopen("/proc/self/oom_adj", "we"); 1055 if (oom_adj) { 1056 fputs("-17", oom_adj); 1057 fclose(oom_adj); 1058 } 1059 1060 /* parse arguments */ 1061 std::string args; 1062 format_args(argc, const_cast<const char **>(argv), &args); 1063 MYLOGD("Dumpstate command line: %s\n", args.c_str()); 1064 int c; 1065 while ((c = getopt(argc, argv, "dho:svqzpPBRV:")) != -1) { 1066 switch (c) { 1067 case 'd': do_add_date = 1; break; 1068 case 'z': do_zip_file = 1; break; 1069 case 'o': use_outfile = optarg; break; 1070 case 's': use_socket = 1; break; 1071 case 'v': break; // compatibility no-op 1072 case 'q': do_vibrate = 0; break; 1073 case 'p': do_fb = 1; break; 1074 case 'P': do_update_progress = 1; break; 1075 case 'R': is_remote_mode = 1; break; 1076 case 'B': do_broadcast = 1; break; 1077 case 'V': version = optarg; break; 1078 case '?': printf("\n"); 1079 case 'h': 1080 usage(); 1081 exit(1); 1082 } 1083 } 1084 1085 if ((do_zip_file || do_add_date || do_update_progress || do_broadcast) && !use_outfile) { 1086 usage(); 1087 exit(1); 1088 } 1089 1090 if (do_update_progress && !do_broadcast) { 1091 usage(); 1092 exit(1); 1093 } 1094 1095 if (is_remote_mode && (do_update_progress || !do_broadcast || !do_zip_file || !do_add_date)) { 1096 usage(); 1097 exit(1); 1098 } 1099 1100 if (version != VERSION_DEFAULT) { 1101 usage(); 1102 exit(1); 1103 } 1104 1105 MYLOGI("bugreport format version: %s\n", version.c_str()); 1106 1107 do_early_screenshot = do_update_progress; 1108 1109 // If we are going to use a socket, do it as early as possible 1110 // to avoid timeouts from bugreport. 1111 if (use_socket) { 1112 redirect_to_socket(stdout, "dumpstate"); 1113 } 1114 1115 /* full path of the directory where the bugreport files will be written */ 1116 std::string bugreport_dir; 1117 1118 /* full path of the temporary file containing the bugreport */ 1119 std::string tmp_path; 1120 1121 /* full path of the file containing the dumpstate logs*/ 1122 std::string log_path; 1123 1124 /* full path of the systrace file, when enabled */ 1125 std::string systrace_path; 1126 1127 /* full path of the temporary file containing the screenshot (when requested) */ 1128 std::string screenshot_path; 1129 1130 /* base name (without suffix or extensions) of the bugreport files */ 1131 std::string base_name; 1132 1133 /* suffix of the bugreport files - it's typically the date (when invoked with -d), 1134 * although it could be changed by the user using a system property */ 1135 std::string suffix; 1136 1137 /* pointer to the actual path, be it zip or text */ 1138 std::string path; 1139 1140 /* pointer to the zipped file */ 1141 std::unique_ptr<FILE, int(*)(FILE*)> zip_file(NULL, fclose); 1142 1143 /* redirect output if needed */ 1144 bool is_redirecting = !use_socket && use_outfile; 1145 1146 if (is_redirecting) { 1147 bugreport_dir = dirname(use_outfile); 1148 base_name = basename(use_outfile); 1149 if (do_add_date) { 1150 char date[80]; 1151 strftime(date, sizeof(date), "%Y-%m-%d-%H-%M-%S", localtime(&now)); 1152 suffix = date; 1153 } else { 1154 suffix = "undated"; 1155 } 1156 char build_id[PROPERTY_VALUE_MAX]; 1157 property_get("ro.build.id", build_id, "UNKNOWN_BUILD"); 1158 base_name = base_name + "-" + build_id; 1159 if (do_fb) { 1160 // TODO: if dumpstate was an object, the paths could be internal variables and then 1161 // we could have a function to calculate the derived values, such as: 1162 // screenshot_path = GetPath(".png"); 1163 screenshot_path = bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1164 } 1165 tmp_path = bugreport_dir + "/" + base_name + "-" + suffix + ".tmp"; 1166 log_path = bugreport_dir + "/dumpstate_log-" + suffix + "-" 1167 + std::to_string(getpid()) + ".txt"; 1168 systrace_path = bugreport_dir + "/systrace-" + suffix + ".txt"; 1169 1170 MYLOGD("Bugreport dir: %s\n" 1171 "Base name: %s\n" 1172 "Suffix: %s\n" 1173 "Log path: %s\n" 1174 "Temporary path: %s\n" 1175 "Screenshot path: %s\n", 1176 bugreport_dir.c_str(), base_name.c_str(), suffix.c_str(), 1177 log_path.c_str(), tmp_path.c_str(), screenshot_path.c_str()); 1178 1179 if (do_zip_file) { 1180 path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1181 MYLOGD("Creating initial .zip file (%s)\n", path.c_str()); 1182 create_parent_dirs(path.c_str()); 1183 zip_file.reset(fopen(path.c_str(), "wb")); 1184 if (!zip_file) { 1185 MYLOGE("fopen(%s, 'wb'): %s\n", path.c_str(), strerror(errno)); 1186 do_zip_file = 0; 1187 } else { 1188 zip_writer.reset(new ZipWriter(zip_file.get())); 1189 } 1190 add_text_zip_entry("version.txt", version); 1191 } 1192 1193 if (do_update_progress) { 1194 std::vector<std::string> am_args = { 1195 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1196 "--es", "android.intent.extra.NAME", suffix, 1197 "--ei", "android.intent.extra.ID", std::to_string(id), 1198 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1199 "--ei", "android.intent.extra.MAX", std::to_string(WEIGHT_TOTAL), 1200 }; 1201 send_broadcast("android.intent.action.BUGREPORT_STARTED", am_args); 1202 } 1203 } 1204 1205 /* read /proc/cmdline before dropping root */ 1206 FILE *cmdline = fopen("/proc/cmdline", "re"); 1207 if (cmdline) { 1208 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 1209 fclose(cmdline); 1210 } 1211 1212 /* open the vibrator before dropping root */ 1213 std::unique_ptr<FILE, int(*)(FILE*)> vibrator(NULL, fclose); 1214 if (do_vibrate) { 1215 vibrator.reset(fopen("/sys/class/timed_output/vibrator/enable", "we")); 1216 if (vibrator) { 1217 vibrate(vibrator.get(), 150); 1218 } 1219 } 1220 1221 if (do_fb && do_early_screenshot) { 1222 if (screenshot_path.empty()) { 1223 // should not have happened 1224 MYLOGE("INTERNAL ERROR: skipping early screenshot because path was not set\n"); 1225 } else { 1226 MYLOGI("taking early screenshot\n"); 1227 take_screenshot(screenshot_path); 1228 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 1229 if (chown(screenshot_path.c_str(), AID_SHELL, AID_SHELL)) { 1230 MYLOGE("Unable to change ownership of screenshot file %s: %s\n", 1231 screenshot_path.c_str(), strerror(errno)); 1232 } 1233 } 1234 } 1235 1236 if (do_zip_file) { 1237 if (chown(path.c_str(), AID_SHELL, AID_SHELL)) { 1238 MYLOGE("Unable to change ownership of zip file %s: %s\n", path.c_str(), strerror(errno)); 1239 } 1240 } 1241 1242 if (is_redirecting) { 1243 redirect_to_file(stderr, const_cast<char*>(log_path.c_str())); 1244 if (chown(log_path.c_str(), AID_SHELL, AID_SHELL)) { 1245 MYLOGE("Unable to change ownership of dumpstate log file %s: %s\n", 1246 log_path.c_str(), strerror(errno)); 1247 } 1248 /* TODO: rather than generating a text file now and zipping it later, 1249 it would be more efficient to redirect stdout to the zip entry 1250 directly, but the libziparchive doesn't support that option yet. */ 1251 redirect_to_file(stdout, const_cast<char*>(tmp_path.c_str())); 1252 if (chown(tmp_path.c_str(), AID_SHELL, AID_SHELL)) { 1253 MYLOGE("Unable to change ownership of temporary bugreport file %s: %s\n", 1254 tmp_path.c_str(), strerror(errno)); 1255 } 1256 } 1257 // NOTE: there should be no stdout output until now, otherwise it would break the header. 1258 // In particular, DurationReport objects should be created passing 'title, NULL', so their 1259 // duration is logged into MYLOG instead. 1260 print_header(version); 1261 1262 // Dumps systrace right away, otherwise it will be filled with unnecessary events. 1263 dump_systrace(systrace_path); 1264 1265 // Invoking the following dumpsys calls before dump_traces() to try and 1266 // keep the system stats as close to its initial state as possible. 1267 run_command_as_shell("DUMPSYS MEMINFO", 30, "dumpsys", "-t", "30", "meminfo", "-a", NULL); 1268 run_command_as_shell("DUMPSYS CPUINFO", 10, "dumpsys", "cpuinfo", "-a", NULL); 1269 1270 /* collect stack traces from Dalvik and native processes (needs root) */ 1271 dump_traces_path = dump_traces(); 1272 1273 /* Get the tombstone fds, recovery files, and mount info here while we are running as root. */ 1274 get_tombstone_fds(tombstone_data); 1275 add_dir(RECOVERY_DIR, true); 1276 add_dir(RECOVERY_DATA_DIR, true); 1277 add_dir(LOGPERSIST_DATA_DIR, false); 1278 add_mountinfo(); 1279 1280 if (!drop_root_user()) { 1281 return -1; 1282 } 1283 1284 dumpstate(do_early_screenshot ? "": screenshot_path, version); 1285 1286 /* close output if needed */ 1287 if (is_redirecting) { 1288 fclose(stdout); 1289 } 1290 1291 /* rename or zip the (now complete) .tmp file to its final location */ 1292 if (use_outfile) { 1293 1294 /* check if user changed the suffix using system properties */ 1295 char key[PROPERTY_KEY_MAX]; 1296 char value[PROPERTY_VALUE_MAX]; 1297 sprintf(key, "dumpstate.%d.name", getpid()); 1298 property_get(key, value, ""); 1299 bool change_suffix= false; 1300 if (value[0]) { 1301 /* must whitelist which characters are allowed, otherwise it could cross directories */ 1302 std::regex valid_regex("^[-_a-zA-Z0-9]+$"); 1303 if (std::regex_match(value, valid_regex)) { 1304 change_suffix = true; 1305 } else { 1306 MYLOGE("invalid suffix provided by user: %s\n", value); 1307 } 1308 } 1309 if (change_suffix) { 1310 MYLOGI("changing suffix from %s to %s\n", suffix.c_str(), value); 1311 suffix = value; 1312 if (!screenshot_path.empty()) { 1313 std::string new_screenshot_path = 1314 bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1315 if (rename(screenshot_path.c_str(), new_screenshot_path.c_str())) { 1316 MYLOGE("rename(%s, %s): %s\n", screenshot_path.c_str(), 1317 new_screenshot_path.c_str(), strerror(errno)); 1318 } else { 1319 screenshot_path = new_screenshot_path; 1320 } 1321 } 1322 } 1323 1324 bool do_text_file = true; 1325 if (do_zip_file) { 1326 std::string entry_name = base_name + "-" + suffix + ".txt"; 1327 MYLOGD("Adding main entry (%s) to .zip bugreport\n", entry_name.c_str()); 1328 if (!finish_zip_file(entry_name, tmp_path, now)) { 1329 MYLOGE("Failed to finish zip file; sending text bugreport instead\n"); 1330 do_text_file = true; 1331 } else { 1332 do_text_file = false; 1333 // Since zip file is already created, it needs to be renamed. 1334 std::string new_path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1335 if (path != new_path) { 1336 MYLOGD("Renaming zip file from %s to %s\n", path.c_str(), new_path.c_str()); 1337 if (rename(path.c_str(), new_path.c_str())) { 1338 MYLOGE("rename(%s, %s): %s\n", path.c_str(), 1339 new_path.c_str(), strerror(errno)); 1340 } else { 1341 path = new_path; 1342 } 1343 } 1344 } 1345 } 1346 if (do_text_file) { 1347 path = bugreport_dir + "/" + base_name + "-" + suffix + ".txt"; 1348 MYLOGD("Generating .txt bugreport at %s from %s\n", path.c_str(), tmp_path.c_str()); 1349 if (rename(tmp_path.c_str(), path.c_str())) { 1350 MYLOGE("rename(%s, %s): %s\n", tmp_path.c_str(), path.c_str(), strerror(errno)); 1351 path.clear(); 1352 } 1353 } 1354 } 1355 1356 /* vibrate a few but shortly times to let user know it's finished */ 1357 if (vibrator) { 1358 for (int i = 0; i < 3; i++) { 1359 vibrate(vibrator.get(), 75); 1360 usleep((75 + 50) * 1000); 1361 } 1362 } 1363 1364 /* tell activity manager we're done */ 1365 if (do_broadcast) { 1366 if (!path.empty()) { 1367 MYLOGI("Final bugreport path: %s\n", path.c_str()); 1368 std::vector<std::string> am_args = { 1369 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1370 "--ei", "android.intent.extra.ID", std::to_string(id), 1371 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1372 "--ei", "android.intent.extra.MAX", std::to_string(weight_total), 1373 "--es", "android.intent.extra.BUGREPORT", path, 1374 "--es", "android.intent.extra.DUMPSTATE_LOG", log_path 1375 }; 1376 if (do_fb) { 1377 am_args.push_back("--es"); 1378 am_args.push_back("android.intent.extra.SCREENSHOT"); 1379 am_args.push_back(screenshot_path); 1380 } 1381 if (is_remote_mode) { 1382 am_args.push_back("--es"); 1383 am_args.push_back("android.intent.extra.REMOTE_BUGREPORT_HASH"); 1384 am_args.push_back(SHA256_file_hash(path)); 1385 send_broadcast("android.intent.action.REMOTE_BUGREPORT_FINISHED", am_args); 1386 } else { 1387 send_broadcast("android.intent.action.BUGREPORT_FINISHED", am_args); 1388 } 1389 } else { 1390 MYLOGE("Skipping finished broadcast because bugreport could not be generated\n"); 1391 } 1392 } 1393 1394 MYLOGD("Final progress: %d/%d (originally %d)\n", progress, weight_total, WEIGHT_TOTAL); 1395 MYLOGI("done\n"); 1396 1397 if (is_redirecting) { 1398 fclose(stderr); 1399 } 1400 1401 return 0; 1402} 1403