dumpstate.cpp revision 6108f5d4004d2a3397c22d22025b8e0eb79b8467
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 int control_socket_fd; 65/* suffix of the bugreport files - it's typically the date (when invoked with -d), 66 * although it could be changed by the user using a system property */ 67static std::string suffix; 68 69#define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops" 70 71#define RAFT_DIR "/data/misc/raft/" 72#define RECOVERY_DIR "/cache/recovery" 73#define RECOVERY_DATA_DIR "/data/misc/recovery" 74#define LOGPERSIST_DATA_DIR "/data/misc/logd" 75#define TOMBSTONE_DIR "/data/tombstones" 76#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_" 77/* Can accomodate a tombstone number up to 9999. */ 78#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4) 79#define NUM_TOMBSTONES 10 80 81typedef struct { 82 char name[TOMBSTONE_MAX_LEN]; 83 int fd; 84} tombstone_data_t; 85 86static tombstone_data_t tombstone_data[NUM_TOMBSTONES]; 87 88const std::string ZIP_ROOT_DIR = "FS"; 89std::string bugreport_dir; 90 91/* 92 * List of supported zip format versions. 93 * 94 * See bugreport-format.txt for more info. 95 */ 96// TODO: change to "v1" before final N build 97static std::string VERSION_DEFAULT = "v1-dev4"; 98 99static bool is_user_build() { 100 return 0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1); 101} 102 103/* gets the tombstone data, according to the bugreport type: if zipped gets all tombstones, 104 * otherwise gets just those modified in the last half an hour. */ 105static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) { 106 time_t thirty_minutes_ago = now - 60*30; 107 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 108 snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i); 109 int fd = TEMP_FAILURE_RETRY(open(data[i].name, 110 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 111 struct stat st; 112 if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) && 113 (zip_writer || (time_t) st.st_mtime >= thirty_minutes_ago)) { 114 data[i].fd = fd; 115 } else { 116 close(fd); 117 data[i].fd = -1; 118 } 119 } 120} 121 122// for_each_pid() callback to get mount info about a process. 123void do_mountinfo(int pid, const char *name) { 124 char path[PATH_MAX]; 125 126 // Gets the the content of the /proc/PID/ns/mnt link, so only unique mount points 127 // are added. 128 snprintf(path, sizeof(path), "/proc/%d/ns/mnt", pid); 129 char linkname[PATH_MAX]; 130 ssize_t r = readlink(path, linkname, PATH_MAX); 131 if (r == -1) { 132 MYLOGE("Unable to read link for %s: %s\n", path, strerror(errno)); 133 return; 134 } 135 linkname[r] = '\0'; 136 137 if (mount_points.find(linkname) == mount_points.end()) { 138 // First time this mount point was found: add it 139 snprintf(path, sizeof(path), "/proc/%d/mountinfo", pid); 140 if (add_zip_entry(ZIP_ROOT_DIR + path, path)) { 141 mount_points.insert(linkname); 142 } else { 143 MYLOGE("Unable to add mountinfo %s to zip file\n", path); 144 } 145 } 146} 147 148void add_mountinfo() { 149 if (!zip_writer) return; 150 const char *title = "MOUNT INFO"; 151 mount_points.clear(); 152 DurationReporter duration_reporter(title, NULL); 153 for_each_pid(do_mountinfo, NULL); 154 MYLOGD("%s: %d entries added to zip file\n", title, (int) mount_points.size()); 155} 156 157static void dump_dev_files(const char *title, const char *driverpath, const char *filename) 158{ 159 DIR *d; 160 struct dirent *de; 161 char path[PATH_MAX]; 162 163 d = opendir(driverpath); 164 if (d == NULL) { 165 return; 166 } 167 168 while ((de = readdir(d))) { 169 if (de->d_type != DT_LNK) { 170 continue; 171 } 172 snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename); 173 dump_file(title, path); 174 } 175 176 closedir(d); 177} 178 179static void dump_systrace() { 180 if (!zip_writer) { 181 MYLOGD("Not dumping systrace because zip_writer is not set\n"); 182 return; 183 } 184 std::string systrace_path = bugreport_dir + "/systrace-" + suffix + ".txt"; 185 if (systrace_path.empty()) { 186 MYLOGE("Not dumping systrace because path is empty\n"); 187 return; 188 } 189 const char* path = "/sys/kernel/debug/tracing/tracing_on"; 190 long int is_tracing; 191 if (read_file_as_long(path, &is_tracing)) { 192 return; // error already logged 193 } 194 if (is_tracing <= 0) { 195 MYLOGD("Skipping systrace because '%s' content is '%ld'\n", path, is_tracing); 196 return; 197 } 198 199 MYLOGD("Running '/system/bin/atrace --async_dump -o %s', which can take several minutes", 200 systrace_path.c_str()); 201 if (run_command("SYSTRACE", 120, "/system/bin/atrace", "--async_dump", "-o", 202 systrace_path.c_str(), NULL)) { 203 MYLOGE("systrace timed out, its zip entry will be incomplete\n"); 204 // TODO: run_command tries to kill the process, but atrace doesn't die peacefully; ideally, 205 // we should call strace to stop itself, but there is no such option yet (just a 206 // --async_stop, which stops and dump 207 // if (run_command("SYSTRACE", 10, "/system/bin/atrace", "--kill", NULL)) { 208 // MYLOGE("could not stop systrace "); 209 // } 210 } 211 if (!add_zip_entry("systrace.txt", systrace_path)) { 212 MYLOGE("Unable to add systrace file %s to zip file\n", systrace_path.c_str()); 213 } else { 214 if (remove(systrace_path.c_str())) { 215 MYLOGE("Error removing systrace file %s: %s", systrace_path.c_str(), strerror(errno)); 216 } 217 } 218} 219 220static bool skip_not_stat(const char *path) { 221 static const char stat[] = "/stat"; 222 size_t len = strlen(path); 223 if (path[len - 1] == '/') { /* Directory? */ 224 return false; 225 } 226 return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */ 227} 228 229static bool skip_none(const char *path) { 230 return false; 231} 232 233static const char mmcblk0[] = "/sys/block/mmcblk0/"; 234unsigned long worst_write_perf = 20000; /* in KB/s */ 235 236// 237// stat offsets 238// Name units description 239// ---- ----- ----------- 240// read I/Os requests number of read I/Os processed 241#define __STAT_READ_IOS 0 242// read merges requests number of read I/Os merged with in-queue I/O 243#define __STAT_READ_MERGES 1 244// read sectors sectors number of sectors read 245#define __STAT_READ_SECTORS 2 246// read ticks milliseconds total wait time for read requests 247#define __STAT_READ_TICKS 3 248// write I/Os requests number of write I/Os processed 249#define __STAT_WRITE_IOS 4 250// write merges requests number of write I/Os merged with in-queue I/O 251#define __STAT_WRITE_MERGES 5 252// write sectors sectors number of sectors written 253#define __STAT_WRITE_SECTORS 6 254// write ticks milliseconds total wait time for write requests 255#define __STAT_WRITE_TICKS 7 256// in_flight requests number of I/Os currently in flight 257#define __STAT_IN_FLIGHT 8 258// io_ticks milliseconds total time this block device has been active 259#define __STAT_IO_TICKS 9 260// time_in_queue milliseconds total wait time for all requests 261#define __STAT_IN_QUEUE 10 262#define __STAT_NUMBER_FIELD 11 263// 264// read I/Os, write I/Os 265// ===================== 266// 267// These values increment when an I/O request completes. 268// 269// read merges, write merges 270// ========================= 271// 272// These values increment when an I/O request is merged with an 273// already-queued I/O request. 274// 275// read sectors, write sectors 276// =========================== 277// 278// These values count the number of sectors read from or written to this 279// block device. The "sectors" in question are the standard UNIX 512-byte 280// sectors, not any device- or filesystem-specific block size. The 281// counters are incremented when the I/O completes. 282#define SECTOR_SIZE 512 283// 284// read ticks, write ticks 285// ======================= 286// 287// These values count the number of milliseconds that I/O requests have 288// waited on this block device. If there are multiple I/O requests waiting, 289// these values will increase at a rate greater than 1000/second; for 290// example, if 60 read requests wait for an average of 30 ms, the read_ticks 291// field will increase by 60*30 = 1800. 292// 293// in_flight 294// ========= 295// 296// This value counts the number of I/O requests that have been issued to 297// the device driver but have not yet completed. It does not include I/O 298// requests that are in the queue but not yet issued to the device driver. 299// 300// io_ticks 301// ======== 302// 303// This value counts the number of milliseconds during which the device has 304// had I/O requests queued. 305// 306// time_in_queue 307// ============= 308// 309// This value counts the number of milliseconds that I/O requests have waited 310// on this block device. If there are multiple I/O requests waiting, this 311// value will increase as the product of the number of milliseconds times the 312// number of requests waiting (see "read ticks" above for an example). 313#define S_TO_MS 1000 314// 315 316static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) { 317 unsigned long long fields[__STAT_NUMBER_FIELD]; 318 bool z; 319 char *cp, *buffer = NULL; 320 size_t i = 0; 321 FILE *fp = fdopen(fd, "rb"); 322 getline(&buffer, &i, fp); 323 fclose(fp); 324 if (!buffer) { 325 return -errno; 326 } 327 i = strlen(buffer); 328 while ((i > 0) && (buffer[i - 1] == '\n')) { 329 buffer[--i] = '\0'; 330 } 331 if (!*buffer) { 332 free(buffer); 333 return 0; 334 } 335 z = true; 336 for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) { 337 fields[i] = strtoull(cp, &cp, 10); 338 if (fields[i] != 0) { 339 z = false; 340 } 341 } 342 if (z) { /* never accessed */ 343 free(buffer); 344 return 0; 345 } 346 347 if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) { 348 path += sizeof(mmcblk0) - 1; 349 } 350 351 printf("%s: %s\n", path, buffer); 352 free(buffer); 353 354 if (fields[__STAT_IO_TICKS]) { 355 unsigned long read_perf = 0; 356 unsigned long read_ios = 0; 357 if (fields[__STAT_READ_TICKS]) { 358 unsigned long long divisor = fields[__STAT_READ_TICKS] 359 * fields[__STAT_IO_TICKS]; 360 read_perf = ((unsigned long long)SECTOR_SIZE 361 * fields[__STAT_READ_SECTORS] 362 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 363 / divisor; 364 read_ios = ((unsigned long long)S_TO_MS * fields[__STAT_READ_IOS] 365 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 366 / divisor; 367 } 368 369 unsigned long write_perf = 0; 370 unsigned long write_ios = 0; 371 if (fields[__STAT_WRITE_TICKS]) { 372 unsigned long long divisor = fields[__STAT_WRITE_TICKS] 373 * fields[__STAT_IO_TICKS]; 374 write_perf = ((unsigned long long)SECTOR_SIZE 375 * fields[__STAT_WRITE_SECTORS] 376 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 377 / divisor; 378 write_ios = ((unsigned long long)S_TO_MS * fields[__STAT_WRITE_IOS] 379 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 380 / divisor; 381 } 382 383 unsigned queue = (fields[__STAT_IN_QUEUE] 384 + (fields[__STAT_IO_TICKS] >> 1)) 385 / fields[__STAT_IO_TICKS]; 386 387 if (!write_perf && !write_ios) { 388 printf("%s: perf(ios) rd: %luKB/s(%lu/s) q: %u\n", 389 path, read_perf, read_ios, queue); 390 } else { 391 printf("%s: perf(ios) rd: %luKB/s(%lu/s) wr: %luKB/s(%lu/s) q: %u\n", 392 path, read_perf, read_ios, write_perf, write_ios, queue); 393 } 394 395 /* bugreport timeout factor adjustment */ 396 if ((write_perf > 1) && (write_perf < worst_write_perf)) { 397 worst_write_perf = write_perf; 398 } 399 } 400 return 0; 401} 402 403/* Copied policy from system/core/logd/LogBuffer.cpp */ 404 405#define LOG_BUFFER_SIZE (256 * 1024) 406#define LOG_BUFFER_MIN_SIZE (64 * 1024UL) 407#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) 408 409static bool valid_size(unsigned long value) { 410 if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) { 411 return false; 412 } 413 414 long pages = sysconf(_SC_PHYS_PAGES); 415 if (pages < 1) { 416 return true; 417 } 418 419 long pagesize = sysconf(_SC_PAGESIZE); 420 if (pagesize <= 1) { 421 pagesize = PAGE_SIZE; 422 } 423 424 // maximum memory impact a somewhat arbitrary ~3% 425 pages = (pages + 31) / 32; 426 unsigned long maximum = pages * pagesize; 427 428 if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) { 429 return true; 430 } 431 432 return value <= maximum; 433} 434 435static unsigned long property_get_size(const char *key) { 436 unsigned long value; 437 char *cp, property[PROPERTY_VALUE_MAX]; 438 439 property_get(key, property, ""); 440 value = strtoul(property, &cp, 10); 441 442 switch(*cp) { 443 case 'm': 444 case 'M': 445 value *= 1024; 446 /* FALLTHRU */ 447 case 'k': 448 case 'K': 449 value *= 1024; 450 /* FALLTHRU */ 451 case '\0': 452 break; 453 454 default: 455 value = 0; 456 } 457 458 if (!valid_size(value)) { 459 value = 0; 460 } 461 462 return value; 463} 464 465/* timeout in ms */ 466static unsigned long logcat_timeout(const char *name) { 467 static const char global_tuneable[] = "persist.logd.size"; // Settings App 468 static const char global_default[] = "ro.logd.size"; // BoardConfig.mk 469 char key[PROP_NAME_MAX]; 470 unsigned long property_size, default_size; 471 472 default_size = property_get_size(global_tuneable); 473 if (!default_size) { 474 default_size = property_get_size(global_default); 475 } 476 477 snprintf(key, sizeof(key), "%s.%s", global_tuneable, name); 478 property_size = property_get_size(key); 479 480 if (!property_size) { 481 snprintf(key, sizeof(key), "%s.%s", global_default, name); 482 property_size = property_get_size(key); 483 } 484 485 if (!property_size) { 486 property_size = default_size; 487 } 488 489 if (!property_size) { 490 property_size = LOG_BUFFER_SIZE; 491 } 492 493 /* Engineering margin is ten-fold our guess */ 494 return 10 * (property_size + worst_write_perf) / worst_write_perf; 495} 496 497/* End copy from system/core/logd/LogBuffer.cpp */ 498 499/* dumps the current system state to stdout */ 500static void print_header(std::string version) { 501 char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; 502 char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; 503 char network[PROPERTY_VALUE_MAX], date[80]; 504 505 property_get("ro.build.display.id", build, "(unknown)"); 506 property_get("ro.build.fingerprint", fingerprint, "(unknown)"); 507 property_get("ro.build.type", build_type, "(unknown)"); 508 property_get("ro.baseband", radio, "(unknown)"); 509 property_get("ro.bootloader", bootloader, "(unknown)"); 510 property_get("gsm.operator.alpha", network, "(unknown)"); 511 strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); 512 513 printf("========================================================\n"); 514 printf("== dumpstate: %s\n", date); 515 printf("========================================================\n"); 516 517 printf("\n"); 518 printf("Build: %s\n", build); 519 printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */ 520 printf("Bootloader: %s\n", bootloader); 521 printf("Radio: %s\n", radio); 522 printf("Network: %s\n", network); 523 524 printf("Kernel: "); 525 dump_file(NULL, "/proc/version"); 526 printf("Command line: %s\n", strtok(cmdline_buf, "\n")); 527 printf("Bugreport format version: %s\n", version.c_str()); 528 printf("Dumpstate info: id=%lu pid=%d\n", id, getpid()); 529 printf("\n"); 530} 531 532bool add_zip_entry_from_fd(const std::string& entry_name, int fd) { 533 if (!zip_writer) { 534 MYLOGD("Not adding zip entry %s from fd because zip_writer is not set\n", 535 entry_name.c_str()); 536 return false; 537 } 538 // Logging statement below is useful to time how long each entry takes, but it's too verbose. 539 // MYLOGD("Adding zip entry %s\n", entry_name.c_str()); 540 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), 541 ZipWriter::kCompress, get_mtime(fd, now)); 542 if (err) { 543 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 544 ZipWriter::ErrorCodeString(err)); 545 return false; 546 } 547 548 std::vector<uint8_t> buffer(65536); 549 while (1) { 550 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer.data(), sizeof(buffer))); 551 if (bytes_read == 0) { 552 break; 553 } else if (bytes_read == -1) { 554 MYLOGE("read(%s): %s\n", entry_name.c_str(), strerror(errno)); 555 return false; 556 } 557 err = zip_writer->WriteBytes(buffer.data(), bytes_read); 558 if (err) { 559 MYLOGE("zip_writer->WriteBytes(): %s\n", ZipWriter::ErrorCodeString(err)); 560 return false; 561 } 562 } 563 564 err = zip_writer->FinishEntry(); 565 if (err) { 566 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 567 return false; 568 } 569 570 return true; 571} 572 573bool 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 temporary file containing the bugreport */ 1135 std::string tmp_path; 1136 1137 /* full path of the file containing the dumpstate logs*/ 1138 std::string log_path; 1139 1140 /* full path of the systrace file, when enabled */ 1141 std::string systrace_path; 1142 1143 /* full path of the temporary file containing the screenshot (when requested) */ 1144 std::string screenshot_path; 1145 1146 /* base name (without suffix or extensions) of the bugreport files */ 1147 std::string base_name; 1148 1149 /* pointer to the actual path, be it zip or text */ 1150 std::string path; 1151 1152 /* pointer to the zipped file */ 1153 std::unique_ptr<FILE, int(*)(FILE*)> zip_file(NULL, fclose); 1154 1155 /* redirect output if needed */ 1156 bool is_redirecting = !use_socket && use_outfile; 1157 1158 if (is_redirecting) { 1159 bugreport_dir = dirname(use_outfile); 1160 base_name = basename(use_outfile); 1161 if (do_add_date) { 1162 char date[80]; 1163 strftime(date, sizeof(date), "%Y-%m-%d-%H-%M-%S", localtime(&now)); 1164 suffix = date; 1165 } else { 1166 suffix = "undated"; 1167 } 1168 char build_id[PROPERTY_VALUE_MAX]; 1169 property_get("ro.build.id", build_id, "UNKNOWN_BUILD"); 1170 base_name = base_name + "-" + build_id; 1171 if (do_fb) { 1172 // TODO: if dumpstate was an object, the paths could be internal variables and then 1173 // we could have a function to calculate the derived values, such as: 1174 // screenshot_path = GetPath(".png"); 1175 screenshot_path = bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1176 } 1177 tmp_path = bugreport_dir + "/" + base_name + "-" + suffix + ".tmp"; 1178 log_path = bugreport_dir + "/dumpstate_log-" + suffix + "-" 1179 + std::to_string(getpid()) + ".txt"; 1180 1181 MYLOGD("Bugreport dir: %s\n" 1182 "Base name: %s\n" 1183 "Suffix: %s\n" 1184 "Log path: %s\n" 1185 "Temporary path: %s\n" 1186 "Screenshot path: %s\n", 1187 bugreport_dir.c_str(), base_name.c_str(), suffix.c_str(), 1188 log_path.c_str(), tmp_path.c_str(), screenshot_path.c_str()); 1189 1190 if (do_zip_file) { 1191 path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1192 MYLOGD("Creating initial .zip file (%s)\n", path.c_str()); 1193 create_parent_dirs(path.c_str()); 1194 zip_file.reset(fopen(path.c_str(), "wb")); 1195 if (!zip_file) { 1196 MYLOGE("fopen(%s, 'wb'): %s\n", path.c_str(), strerror(errno)); 1197 do_zip_file = 0; 1198 } else { 1199 zip_writer.reset(new ZipWriter(zip_file.get())); 1200 } 1201 add_text_zip_entry("version.txt", version); 1202 } 1203 1204 if (do_update_progress) { 1205 std::vector<std::string> am_args = { 1206 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1207 "--es", "android.intent.extra.NAME", suffix, 1208 "--ei", "android.intent.extra.ID", std::to_string(id), 1209 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1210 "--ei", "android.intent.extra.MAX", std::to_string(WEIGHT_TOTAL), 1211 }; 1212 send_broadcast("android.intent.action.BUGREPORT_STARTED", am_args); 1213 } 1214 } 1215 1216 /* read /proc/cmdline before dropping root */ 1217 FILE *cmdline = fopen("/proc/cmdline", "re"); 1218 if (cmdline) { 1219 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 1220 fclose(cmdline); 1221 } 1222 1223 /* open the vibrator before dropping root */ 1224 std::unique_ptr<FILE, int(*)(FILE*)> vibrator(NULL, fclose); 1225 if (do_vibrate) { 1226 vibrator.reset(fopen("/sys/class/timed_output/vibrator/enable", "we")); 1227 if (vibrator) { 1228 vibrate(vibrator.get(), 150); 1229 } 1230 } 1231 1232 if (do_fb && do_early_screenshot) { 1233 if (screenshot_path.empty()) { 1234 // should not have happened 1235 MYLOGE("INTERNAL ERROR: skipping early screenshot because path was not set\n"); 1236 } else { 1237 MYLOGI("taking early screenshot\n"); 1238 take_screenshot(screenshot_path); 1239 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 1240 if (chown(screenshot_path.c_str(), AID_SHELL, AID_SHELL)) { 1241 MYLOGE("Unable to change ownership of screenshot file %s: %s\n", 1242 screenshot_path.c_str(), strerror(errno)); 1243 } 1244 } 1245 } 1246 1247 if (do_zip_file) { 1248 if (chown(path.c_str(), AID_SHELL, AID_SHELL)) { 1249 MYLOGE("Unable to change ownership of zip file %s: %s\n", path.c_str(), strerror(errno)); 1250 } 1251 } 1252 1253 if (is_redirecting) { 1254 redirect_to_file(stderr, const_cast<char*>(log_path.c_str())); 1255 if (chown(log_path.c_str(), AID_SHELL, AID_SHELL)) { 1256 MYLOGE("Unable to change ownership of dumpstate log file %s: %s\n", 1257 log_path.c_str(), strerror(errno)); 1258 } 1259 /* TODO: rather than generating a text file now and zipping it later, 1260 it would be more efficient to redirect stdout to the zip entry 1261 directly, but the libziparchive doesn't support that option yet. */ 1262 redirect_to_file(stdout, const_cast<char*>(tmp_path.c_str())); 1263 if (chown(tmp_path.c_str(), AID_SHELL, AID_SHELL)) { 1264 MYLOGE("Unable to change ownership of temporary bugreport file %s: %s\n", 1265 tmp_path.c_str(), strerror(errno)); 1266 } 1267 } 1268 // NOTE: there should be no stdout output until now, otherwise it would break the header. 1269 // In particular, DurationReport objects should be created passing 'title, NULL', so their 1270 // duration is logged into MYLOG instead. 1271 print_header(version); 1272 1273 // Dumps systrace right away, otherwise it will be filled with unnecessary events. 1274 dump_systrace(); 1275 1276 // Invoking the following dumpsys calls before dump_traces() to try and 1277 // keep the system stats as close to its initial state as possible. 1278 run_command_as_shell("DUMPSYS MEMINFO", 30, "dumpsys", "-t", "30", "meminfo", "-a", NULL); 1279 run_command_as_shell("DUMPSYS CPUINFO", 10, "dumpsys", "cpuinfo", "-a", NULL); 1280 1281 /* collect stack traces from Dalvik and native processes (needs root) */ 1282 dump_traces_path = dump_traces(); 1283 1284 /* Get the tombstone fds, recovery files, and mount info here while we are running as root. */ 1285 get_tombstone_fds(tombstone_data); 1286 add_dir(RECOVERY_DIR, true); 1287 add_dir(RECOVERY_DATA_DIR, true); 1288 add_dir(LOGPERSIST_DATA_DIR, false); 1289 add_mountinfo(); 1290 1291 if (!drop_root_user()) { 1292 return -1; 1293 } 1294 1295 dumpstate(do_early_screenshot ? "": screenshot_path, version); 1296 1297 /* close output if needed */ 1298 if (is_redirecting) { 1299 fclose(stdout); 1300 } 1301 1302 /* rename or zip the (now complete) .tmp file to its final location */ 1303 if (use_outfile) { 1304 1305 /* check if user changed the suffix using system properties */ 1306 char key[PROPERTY_KEY_MAX]; 1307 char value[PROPERTY_VALUE_MAX]; 1308 snprintf(key, sizeof(key), "dumpstate.%d.name", getpid()); 1309 property_get(key, value, ""); 1310 bool change_suffix= false; 1311 if (value[0]) { 1312 /* must whitelist which characters are allowed, otherwise it could cross directories */ 1313 std::regex valid_regex("^[-_a-zA-Z0-9]+$"); 1314 if (std::regex_match(value, valid_regex)) { 1315 change_suffix = true; 1316 } else { 1317 MYLOGE("invalid suffix provided by user: %s\n", value); 1318 } 1319 } 1320 if (change_suffix) { 1321 MYLOGI("changing suffix from %s to %s\n", suffix.c_str(), value); 1322 suffix = value; 1323 if (!screenshot_path.empty()) { 1324 std::string new_screenshot_path = 1325 bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1326 if (rename(screenshot_path.c_str(), new_screenshot_path.c_str())) { 1327 MYLOGE("rename(%s, %s): %s\n", screenshot_path.c_str(), 1328 new_screenshot_path.c_str(), strerror(errno)); 1329 } else { 1330 screenshot_path = new_screenshot_path; 1331 } 1332 } 1333 } 1334 1335 bool do_text_file = true; 1336 if (do_zip_file) { 1337 std::string entry_name = base_name + "-" + suffix + ".txt"; 1338 MYLOGD("Adding main entry (%s) to .zip bugreport\n", entry_name.c_str()); 1339 if (!finish_zip_file(entry_name, tmp_path, now)) { 1340 MYLOGE("Failed to finish zip file; sending text bugreport instead\n"); 1341 do_text_file = true; 1342 } else { 1343 do_text_file = false; 1344 // Since zip file is already created, it needs to be renamed. 1345 std::string new_path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1346 if (path != new_path) { 1347 MYLOGD("Renaming zip file from %s to %s\n", path.c_str(), new_path.c_str()); 1348 if (rename(path.c_str(), new_path.c_str())) { 1349 MYLOGE("rename(%s, %s): %s\n", path.c_str(), 1350 new_path.c_str(), strerror(errno)); 1351 } else { 1352 path = new_path; 1353 } 1354 } 1355 } 1356 } 1357 if (do_text_file) { 1358 path = bugreport_dir + "/" + base_name + "-" + suffix + ".txt"; 1359 MYLOGD("Generating .txt bugreport at %s from %s\n", path.c_str(), tmp_path.c_str()); 1360 if (rename(tmp_path.c_str(), path.c_str())) { 1361 MYLOGE("rename(%s, %s): %s\n", tmp_path.c_str(), path.c_str(), strerror(errno)); 1362 path.clear(); 1363 } 1364 } 1365 if (use_control_socket) { 1366 if (do_text_file) { 1367 dprintf(control_socket_fd, "FAIL:could not create zip file, check %s " 1368 "for more details\n", log_path.c_str()); 1369 } else { 1370 dprintf(control_socket_fd, "OK:%s\n", path.c_str()); 1371 } 1372 } 1373 } 1374 1375 /* vibrate a few but shortly times to let user know it's finished */ 1376 if (vibrator) { 1377 for (int i = 0; i < 3; i++) { 1378 vibrate(vibrator.get(), 75); 1379 usleep((75 + 50) * 1000); 1380 } 1381 } 1382 1383 /* tell activity manager we're done */ 1384 if (do_broadcast) { 1385 if (!path.empty()) { 1386 MYLOGI("Final bugreport path: %s\n", path.c_str()); 1387 std::vector<std::string> am_args = { 1388 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1389 "--ei", "android.intent.extra.ID", std::to_string(id), 1390 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1391 "--ei", "android.intent.extra.MAX", std::to_string(weight_total), 1392 "--es", "android.intent.extra.BUGREPORT", path, 1393 "--es", "android.intent.extra.DUMPSTATE_LOG", log_path 1394 }; 1395 if (do_fb) { 1396 am_args.push_back("--es"); 1397 am_args.push_back("android.intent.extra.SCREENSHOT"); 1398 am_args.push_back(screenshot_path); 1399 } 1400 if (is_remote_mode) { 1401 am_args.push_back("--es"); 1402 am_args.push_back("android.intent.extra.REMOTE_BUGREPORT_HASH"); 1403 am_args.push_back(SHA256_file_hash(path)); 1404 send_broadcast("android.intent.action.REMOTE_BUGREPORT_FINISHED", am_args); 1405 } else { 1406 send_broadcast("android.intent.action.BUGREPORT_FINISHED", am_args); 1407 } 1408 } else { 1409 MYLOGE("Skipping finished broadcast because bugreport could not be generated\n"); 1410 } 1411 } 1412 1413 MYLOGD("Final progress: %d/%d (originally %d)\n", progress, weight_total, WEIGHT_TOTAL); 1414 MYLOGI("done\n"); 1415 1416 if (is_redirecting) { 1417 fclose(stderr); 1418 } 1419 1420 if (use_control_socket && control_socket_fd >= 0) { 1421 MYLOGD("Closing control socket\n"); 1422 close(control_socket_fd); 1423 } 1424 1425 return 0; 1426} 1427