dumpstate.cpp revision 0faf2b870f934c1cdd883d29642fd84da3b352e2
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 PROFILE_DATA_DIR_CUR "/data/misc/profiles/cur" 76#define PROFILE_DATA_DIR_REF "/data/misc/profiles/ref" 77#define TOMBSTONE_DIR "/data/tombstones" 78#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_" 79/* Can accomodate a tombstone number up to 9999. */ 80#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4) 81#define NUM_TOMBSTONES 10 82#define WLUTIL "/vendor/xbin/wlutil" 83 84typedef struct { 85 char name[TOMBSTONE_MAX_LEN]; 86 int fd; 87} tombstone_data_t; 88 89static tombstone_data_t tombstone_data[NUM_TOMBSTONES]; 90 91const std::string ZIP_ROOT_DIR = "FS"; 92std::string bugreport_dir; 93 94/* 95 * List of supported zip format versions. 96 * 97 * See bugreport-format.txt for more info. 98 */ 99// TODO: change to "v1" before final N build 100static std::string VERSION_DEFAULT = "v1-dev4"; 101 102static bool is_user_build() { 103 return 0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1); 104} 105 106/* gets the tombstone data, according to the bugreport type: if zipped gets all tombstones, 107 * otherwise gets just those modified in the last half an hour. */ 108static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) { 109 time_t thirty_minutes_ago = now - 60*30; 110 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 111 snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i); 112 int fd = TEMP_FAILURE_RETRY(open(data[i].name, 113 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 114 struct stat st; 115 if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) && 116 (zip_writer || (time_t) st.st_mtime >= thirty_minutes_ago)) { 117 data[i].fd = fd; 118 } else { 119 close(fd); 120 data[i].fd = -1; 121 } 122 } 123} 124 125// for_each_pid() callback to get mount info about a process. 126void do_mountinfo(int pid, const char *name) { 127 char path[PATH_MAX]; 128 129 // Gets the the content of the /proc/PID/ns/mnt link, so only unique mount points 130 // are added. 131 snprintf(path, sizeof(path), "/proc/%d/ns/mnt", pid); 132 char linkname[PATH_MAX]; 133 ssize_t r = readlink(path, linkname, PATH_MAX); 134 if (r == -1) { 135 MYLOGE("Unable to read link for %s: %s\n", path, strerror(errno)); 136 return; 137 } 138 linkname[r] = '\0'; 139 140 if (mount_points.find(linkname) == mount_points.end()) { 141 // First time this mount point was found: add it 142 snprintf(path, sizeof(path), "/proc/%d/mountinfo", pid); 143 if (add_zip_entry(ZIP_ROOT_DIR + path, path)) { 144 mount_points.insert(linkname); 145 } else { 146 MYLOGE("Unable to add mountinfo %s to zip file\n", path); 147 } 148 } 149} 150 151void add_mountinfo() { 152 if (!zip_writer) return; 153 const char *title = "MOUNT INFO"; 154 mount_points.clear(); 155 DurationReporter duration_reporter(title, NULL); 156 for_each_pid(do_mountinfo, NULL); 157 MYLOGD("%s: %d entries added to zip file\n", title, (int) mount_points.size()); 158} 159 160static void dump_dev_files(const char *title, const char *driverpath, const char *filename) 161{ 162 DIR *d; 163 struct dirent *de; 164 char path[PATH_MAX]; 165 166 d = opendir(driverpath); 167 if (d == NULL) { 168 return; 169 } 170 171 while ((de = readdir(d))) { 172 if (de->d_type != DT_LNK) { 173 continue; 174 } 175 snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename); 176 dump_file(title, path); 177 } 178 179 closedir(d); 180} 181 182static void dump_systrace() { 183 if (!zip_writer) { 184 MYLOGD("Not dumping systrace because zip_writer is not set\n"); 185 return; 186 } 187 std::string systrace_path = bugreport_dir + "/systrace-" + suffix + ".txt"; 188 if (systrace_path.empty()) { 189 MYLOGE("Not dumping systrace because path is empty\n"); 190 return; 191 } 192 const char* path = "/sys/kernel/debug/tracing/tracing_on"; 193 long int is_tracing; 194 if (read_file_as_long(path, &is_tracing)) { 195 return; // error already logged 196 } 197 if (is_tracing <= 0) { 198 MYLOGD("Skipping systrace because '%s' content is '%ld'\n", path, is_tracing); 199 return; 200 } 201 202 MYLOGD("Running '/system/bin/atrace --async_dump -o %s', which can take several minutes", 203 systrace_path.c_str()); 204 if (run_command("SYSTRACE", 120, "/system/bin/atrace", "--async_dump", "-o", 205 systrace_path.c_str(), NULL)) { 206 MYLOGE("systrace timed out, its zip entry will be incomplete\n"); 207 // TODO: run_command tries to kill the process, but atrace doesn't die peacefully; ideally, 208 // we should call strace to stop itself, but there is no such option yet (just a 209 // --async_stop, which stops and dump 210 // if (run_command("SYSTRACE", 10, "/system/bin/atrace", "--kill", NULL)) { 211 // MYLOGE("could not stop systrace "); 212 // } 213 } 214 if (!add_zip_entry("systrace.txt", systrace_path)) { 215 MYLOGE("Unable to add systrace file %s to zip file\n", systrace_path.c_str()); 216 } else { 217 if (remove(systrace_path.c_str())) { 218 MYLOGE("Error removing systrace file %s: %s", systrace_path.c_str(), strerror(errno)); 219 } 220 } 221} 222 223static bool skip_not_stat(const char *path) { 224 static const char stat[] = "/stat"; 225 size_t len = strlen(path); 226 if (path[len - 1] == '/') { /* Directory? */ 227 return false; 228 } 229 return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */ 230} 231 232static bool skip_none(const char *path) { 233 return false; 234} 235 236static const char mmcblk0[] = "/sys/block/mmcblk0/"; 237unsigned long worst_write_perf = 20000; /* in KB/s */ 238 239// 240// stat offsets 241// Name units description 242// ---- ----- ----------- 243// read I/Os requests number of read I/Os processed 244#define __STAT_READ_IOS 0 245// read merges requests number of read I/Os merged with in-queue I/O 246#define __STAT_READ_MERGES 1 247// read sectors sectors number of sectors read 248#define __STAT_READ_SECTORS 2 249// read ticks milliseconds total wait time for read requests 250#define __STAT_READ_TICKS 3 251// write I/Os requests number of write I/Os processed 252#define __STAT_WRITE_IOS 4 253// write merges requests number of write I/Os merged with in-queue I/O 254#define __STAT_WRITE_MERGES 5 255// write sectors sectors number of sectors written 256#define __STAT_WRITE_SECTORS 6 257// write ticks milliseconds total wait time for write requests 258#define __STAT_WRITE_TICKS 7 259// in_flight requests number of I/Os currently in flight 260#define __STAT_IN_FLIGHT 8 261// io_ticks milliseconds total time this block device has been active 262#define __STAT_IO_TICKS 9 263// time_in_queue milliseconds total wait time for all requests 264#define __STAT_IN_QUEUE 10 265#define __STAT_NUMBER_FIELD 11 266// 267// read I/Os, write I/Os 268// ===================== 269// 270// These values increment when an I/O request completes. 271// 272// read merges, write merges 273// ========================= 274// 275// These values increment when an I/O request is merged with an 276// already-queued I/O request. 277// 278// read sectors, write sectors 279// =========================== 280// 281// These values count the number of sectors read from or written to this 282// block device. The "sectors" in question are the standard UNIX 512-byte 283// sectors, not any device- or filesystem-specific block size. The 284// counters are incremented when the I/O completes. 285#define SECTOR_SIZE 512 286// 287// read ticks, write ticks 288// ======================= 289// 290// These values count the number of milliseconds that I/O requests have 291// waited on this block device. If there are multiple I/O requests waiting, 292// these values will increase at a rate greater than 1000/second; for 293// example, if 60 read requests wait for an average of 30 ms, the read_ticks 294// field will increase by 60*30 = 1800. 295// 296// in_flight 297// ========= 298// 299// This value counts the number of I/O requests that have been issued to 300// the device driver but have not yet completed. It does not include I/O 301// requests that are in the queue but not yet issued to the device driver. 302// 303// io_ticks 304// ======== 305// 306// This value counts the number of milliseconds during which the device has 307// had I/O requests queued. 308// 309// time_in_queue 310// ============= 311// 312// This value counts the number of milliseconds that I/O requests have waited 313// on this block device. If there are multiple I/O requests waiting, this 314// value will increase as the product of the number of milliseconds times the 315// number of requests waiting (see "read ticks" above for an example). 316#define S_TO_MS 1000 317// 318 319static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) { 320 unsigned long long fields[__STAT_NUMBER_FIELD]; 321 bool z; 322 char *cp, *buffer = NULL; 323 size_t i = 0; 324 FILE *fp = fdopen(fd, "rb"); 325 getline(&buffer, &i, fp); 326 fclose(fp); 327 if (!buffer) { 328 return -errno; 329 } 330 i = strlen(buffer); 331 while ((i > 0) && (buffer[i - 1] == '\n')) { 332 buffer[--i] = '\0'; 333 } 334 if (!*buffer) { 335 free(buffer); 336 return 0; 337 } 338 z = true; 339 for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) { 340 fields[i] = strtoull(cp, &cp, 10); 341 if (fields[i] != 0) { 342 z = false; 343 } 344 } 345 if (z) { /* never accessed */ 346 free(buffer); 347 return 0; 348 } 349 350 if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) { 351 path += sizeof(mmcblk0) - 1; 352 } 353 354 printf("%s: %s\n", path, buffer); 355 free(buffer); 356 357 if (fields[__STAT_IO_TICKS]) { 358 unsigned long read_perf = 0; 359 unsigned long read_ios = 0; 360 if (fields[__STAT_READ_TICKS]) { 361 unsigned long long divisor = fields[__STAT_READ_TICKS] 362 * fields[__STAT_IO_TICKS]; 363 read_perf = ((unsigned long long)SECTOR_SIZE 364 * fields[__STAT_READ_SECTORS] 365 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 366 / divisor; 367 read_ios = ((unsigned long long)S_TO_MS * fields[__STAT_READ_IOS] 368 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 369 / divisor; 370 } 371 372 unsigned long write_perf = 0; 373 unsigned long write_ios = 0; 374 if (fields[__STAT_WRITE_TICKS]) { 375 unsigned long long divisor = fields[__STAT_WRITE_TICKS] 376 * fields[__STAT_IO_TICKS]; 377 write_perf = ((unsigned long long)SECTOR_SIZE 378 * fields[__STAT_WRITE_SECTORS] 379 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 380 / divisor; 381 write_ios = ((unsigned long long)S_TO_MS * fields[__STAT_WRITE_IOS] 382 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 383 / divisor; 384 } 385 386 unsigned queue = (fields[__STAT_IN_QUEUE] 387 + (fields[__STAT_IO_TICKS] >> 1)) 388 / fields[__STAT_IO_TICKS]; 389 390 if (!write_perf && !write_ios) { 391 printf("%s: perf(ios) rd: %luKB/s(%lu/s) q: %u\n", 392 path, read_perf, read_ios, queue); 393 } else { 394 printf("%s: perf(ios) rd: %luKB/s(%lu/s) wr: %luKB/s(%lu/s) q: %u\n", 395 path, read_perf, read_ios, write_perf, write_ios, queue); 396 } 397 398 /* bugreport timeout factor adjustment */ 399 if ((write_perf > 1) && (write_perf < worst_write_perf)) { 400 worst_write_perf = write_perf; 401 } 402 } 403 return 0; 404} 405 406/* Copied policy from system/core/logd/LogBuffer.cpp */ 407 408#define LOG_BUFFER_SIZE (256 * 1024) 409#define LOG_BUFFER_MIN_SIZE (64 * 1024UL) 410#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) 411 412static bool valid_size(unsigned long value) { 413 if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) { 414 return false; 415 } 416 417 long pages = sysconf(_SC_PHYS_PAGES); 418 if (pages < 1) { 419 return true; 420 } 421 422 long pagesize = sysconf(_SC_PAGESIZE); 423 if (pagesize <= 1) { 424 pagesize = PAGE_SIZE; 425 } 426 427 // maximum memory impact a somewhat arbitrary ~3% 428 pages = (pages + 31) / 32; 429 unsigned long maximum = pages * pagesize; 430 431 if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) { 432 return true; 433 } 434 435 return value <= maximum; 436} 437 438static unsigned long property_get_size(const char *key) { 439 unsigned long value; 440 char *cp, property[PROPERTY_VALUE_MAX]; 441 442 property_get(key, property, ""); 443 value = strtoul(property, &cp, 10); 444 445 switch(*cp) { 446 case 'm': 447 case 'M': 448 value *= 1024; 449 /* FALLTHRU */ 450 case 'k': 451 case 'K': 452 value *= 1024; 453 /* FALLTHRU */ 454 case '\0': 455 break; 456 457 default: 458 value = 0; 459 } 460 461 if (!valid_size(value)) { 462 value = 0; 463 } 464 465 return value; 466} 467 468/* timeout in ms */ 469static unsigned long logcat_timeout(const char *name) { 470 static const char global_tuneable[] = "persist.logd.size"; // Settings App 471 static const char global_default[] = "ro.logd.size"; // BoardConfig.mk 472 char key[PROP_NAME_MAX]; 473 unsigned long property_size, default_size; 474 475 default_size = property_get_size(global_tuneable); 476 if (!default_size) { 477 default_size = property_get_size(global_default); 478 } 479 480 snprintf(key, sizeof(key), "%s.%s", global_tuneable, name); 481 property_size = property_get_size(key); 482 483 if (!property_size) { 484 snprintf(key, sizeof(key), "%s.%s", global_default, name); 485 property_size = property_get_size(key); 486 } 487 488 if (!property_size) { 489 property_size = default_size; 490 } 491 492 if (!property_size) { 493 property_size = LOG_BUFFER_SIZE; 494 } 495 496 /* Engineering margin is ten-fold our guess */ 497 return 10 * (property_size + worst_write_perf) / worst_write_perf; 498} 499 500/* End copy from system/core/logd/LogBuffer.cpp */ 501 502/* dumps the current system state to stdout */ 503static void print_header(std::string version) { 504 char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; 505 char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; 506 char network[PROPERTY_VALUE_MAX], date[80]; 507 508 property_get("ro.build.display.id", build, "(unknown)"); 509 property_get("ro.build.fingerprint", fingerprint, "(unknown)"); 510 property_get("ro.build.type", build_type, "(unknown)"); 511 property_get("ro.baseband", radio, "(unknown)"); 512 property_get("ro.bootloader", bootloader, "(unknown)"); 513 property_get("gsm.operator.alpha", network, "(unknown)"); 514 strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); 515 516 printf("========================================================\n"); 517 printf("== dumpstate: %s\n", date); 518 printf("========================================================\n"); 519 520 printf("\n"); 521 printf("Build: %s\n", build); 522 printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */ 523 printf("Bootloader: %s\n", bootloader); 524 printf("Radio: %s\n", radio); 525 printf("Network: %s\n", network); 526 527 printf("Kernel: "); 528 dump_file(NULL, "/proc/version"); 529 printf("Command line: %s\n", strtok(cmdline_buf, "\n")); 530 printf("Bugreport format version: %s\n", version.c_str()); 531 printf("Dumpstate info: id=%lu pid=%d\n", id, getpid()); 532 printf("\n"); 533} 534 535bool add_zip_entry_from_fd(const std::string& entry_name, int fd) { 536 if (!zip_writer) { 537 MYLOGD("Not adding zip entry %s from fd because zip_writer is not set\n", 538 entry_name.c_str()); 539 return false; 540 } 541 // Logging statement below is useful to time how long each entry takes, but it's too verbose. 542 // MYLOGD("Adding zip entry %s\n", entry_name.c_str()); 543 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), 544 ZipWriter::kCompress, get_mtime(fd, now)); 545 if (err) { 546 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 547 ZipWriter::ErrorCodeString(err)); 548 return false; 549 } 550 551 std::vector<uint8_t> buffer(65536); 552 while (1) { 553 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer.data(), sizeof(buffer))); 554 if (bytes_read == 0) { 555 break; 556 } else if (bytes_read == -1) { 557 MYLOGE("read(%s): %s\n", entry_name.c_str(), strerror(errno)); 558 return false; 559 } 560 err = zip_writer->WriteBytes(buffer.data(), bytes_read); 561 if (err) { 562 MYLOGE("zip_writer->WriteBytes(): %s\n", ZipWriter::ErrorCodeString(err)); 563 return false; 564 } 565 } 566 567 err = zip_writer->FinishEntry(); 568 if (err) { 569 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 570 return false; 571 } 572 573 return true; 574} 575 576bool add_zip_entry(const std::string& entry_name, const std::string& entry_path) { 577 ScopedFd fd(TEMP_FAILURE_RETRY(open(entry_path.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC))); 578 if (fd.get() == -1) { 579 MYLOGE("open(%s): %s\n", entry_path.c_str(), strerror(errno)); 580 return false; 581 } 582 583 return add_zip_entry_from_fd(entry_name, fd.get()); 584} 585 586/* adds a file to the existing zipped bugreport */ 587static int _add_file_from_fd(const char *title, const char *path, int fd) { 588 return add_zip_entry_from_fd(ZIP_ROOT_DIR + path, fd) ? 0 : 1; 589} 590 591/* adds all files from a directory to the zipped bugreport file */ 592void add_dir(const char *dir, bool recursive) { 593 if (!zip_writer) { 594 MYLOGD("Not adding dir %s because zip_writer is not set\n", dir); 595 return; 596 } 597 MYLOGD("Adding dir %s (recursive: %d)\n", dir, recursive); 598 DurationReporter duration_reporter(dir, NULL); 599 dump_files(NULL, dir, recursive ? skip_none : is_dir, _add_file_from_fd); 600} 601 602/* adds a text entry entry to the existing zip file. */ 603static bool add_text_zip_entry(const std::string& entry_name, const std::string& content) { 604 if (!zip_writer) { 605 MYLOGD("Not adding text zip entry %s because zip_writer is not set\n", entry_name.c_str()); 606 return false; 607 } 608 MYLOGD("Adding zip text entry %s\n", entry_name.c_str()); 609 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), ZipWriter::kCompress, now); 610 if (err) { 611 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 612 ZipWriter::ErrorCodeString(err)); 613 return false; 614 } 615 616 err = zip_writer->WriteBytes(content.c_str(), content.length()); 617 if (err) { 618 MYLOGE("zip_writer->WriteBytes(%s): %s\n", entry_name.c_str(), 619 ZipWriter::ErrorCodeString(err)); 620 return false; 621 } 622 623 err = zip_writer->FinishEntry(); 624 if (err) { 625 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 626 return false; 627 } 628 629 return true; 630} 631 632static void dumpstate(const std::string& screenshot_path, const std::string& version) { 633 DurationReporter duration_reporter("DUMPSTATE"); 634 unsigned long timeout; 635 636 dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version"); 637 run_command("UPTIME", 10, "uptime", NULL); 638 dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd); 639 dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd"); 640 dump_file("MEMORY INFO", "/proc/meminfo"); 641 run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-H", NULL); 642 run_command("PROCRANK", 20, SU_PATH, "root", "procrank", NULL); 643 dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat"); 644 dump_file("VMALLOC INFO", "/proc/vmallocinfo"); 645 dump_file("SLAB INFO", "/proc/slabinfo"); 646 dump_file("ZONEINFO", "/proc/zoneinfo"); 647 dump_file("PAGETYPEINFO", "/proc/pagetypeinfo"); 648 dump_file("BUDDYINFO", "/proc/buddyinfo"); 649 dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index"); 650 651 dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources"); 652 dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); 653 dump_file("KERNEL SYNC", "/d/sync"); 654 655 run_command("PROCESSES AND THREADS", 10, "ps", "-Z", "-t", "-p", "-P", NULL); 656 run_command("LIBRANK", 10, SU_PATH, "root", "librank", NULL); 657 658 run_command("PRINTENV", 10, "printenv", NULL); 659 run_command("NETSTAT", 10, "netstat", "-n", NULL); 660 run_command("LSMOD", 10, "lsmod", NULL); 661 662 do_dmesg(); 663 664 run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL); 665 for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES"); 666 for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); 667 for_each_pid(show_showtime, "PROCESS TIMES (pid cmd user system iowait+percentage)"); 668 669 if (!screenshot_path.empty()) { 670 MYLOGI("taking late screenshot\n"); 671 take_screenshot(screenshot_path); 672 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 673 } 674 675 // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); 676 // calculate timeout 677 timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash"); 678 if (timeout < 20000) { 679 timeout = 20000; 680 } 681 run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime", 682 "-v", "printable", 683 "-d", 684 "*:v", NULL); 685 timeout = logcat_timeout("events"); 686 if (timeout < 20000) { 687 timeout = 20000; 688 } 689 run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events", 690 "-v", "threadtime", 691 "-v", "printable", 692 "-d", 693 "*:v", NULL); 694 timeout = logcat_timeout("radio"); 695 if (timeout < 20000) { 696 timeout = 20000; 697 } 698 run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio", 699 "-v", "threadtime", 700 "-v", "printable", 701 "-d", 702 "*:v", NULL); 703 704 run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL); 705 706 run_command("RAFT LOGS", 600, SU_PATH, "root", "logcompressor", "-r", RAFT_DIR, NULL); 707 708 /* show the traces we collected in main(), if that was done */ 709 if (dump_traces_path != NULL) { 710 dump_file("VM TRACES JUST NOW", dump_traces_path); 711 } 712 713 /* only show ANR traces if they're less than 15 minutes old */ 714 struct stat st; 715 char anr_traces_path[PATH_MAX]; 716 property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); 717 if (!anr_traces_path[0]) { 718 printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); 719 } else { 720 int fd = TEMP_FAILURE_RETRY(open(anr_traces_path, 721 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 722 if (fd < 0) { 723 printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); 724 } else { 725 dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd); 726 } 727 } 728 729 /* slow traces for slow operations */ 730 if (anr_traces_path[0] != 0) { 731 int tail = strlen(anr_traces_path)-1; 732 while (tail > 0 && anr_traces_path[tail] != '/') { 733 tail--; 734 } 735 int i = 0; 736 while (1) { 737 sprintf(anr_traces_path+tail+1, "slow%02d.txt", i); 738 if (stat(anr_traces_path, &st)) { 739 // No traces file at this index, done with the files. 740 break; 741 } 742 dump_file("VM TRACES WHEN SLOW", anr_traces_path); 743 i++; 744 } 745 } 746 747 int dumped = 0; 748 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 749 if (tombstone_data[i].fd != -1) { 750 const char *name = tombstone_data[i].name; 751 int fd = tombstone_data[i].fd; 752 dumped = 1; 753 if (zip_writer) { 754 if (!add_zip_entry_from_fd(ZIP_ROOT_DIR + name, fd)) { 755 MYLOGE("Unable to add tombstone %s to zip file\n", name); 756 } 757 } else { 758 dump_file_from_fd("TOMBSTONE", name, fd); 759 } 760 close(fd); 761 tombstone_data[i].fd = -1; 762 } 763 } 764 if (!dumped) { 765 printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR); 766 } 767 768 dump_file("NETWORK DEV INFO", "/proc/net/dev"); 769 dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all"); 770 dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt"); 771 dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl"); 772 dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats"); 773 774 if (!stat(PSTORE_LAST_KMSG, &st)) { 775 /* Also TODO: Make console-ramoops CAP_SYSLOG protected. */ 776 dump_file("LAST KMSG", PSTORE_LAST_KMSG); 777 } else { 778 /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */ 779 dump_file("LAST KMSG", "/proc/last_kmsg"); 780 } 781 782 /* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */ 783 run_command("LAST LOGCAT", 10, "logcat", "-L", 784 "-b", "all", 785 "-v", "threadtime", 786 "-v", "printable", 787 "-d", 788 "*:v", NULL); 789 790 /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */ 791 792 run_command("NETWORK INTERFACES", 10, "ip", "link", NULL); 793 794 run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL); 795 run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL); 796 797 run_command("IP RULES", 10, "ip", "rule", "show", NULL); 798 run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL); 799 800 dump_route_tables(); 801 802 run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL); 803 run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL); 804 run_command("MULTICAST ADDRESSES", 10, "ip", "maddr", NULL); 805 806 run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL); 807 run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL); 808 run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL); 809 /* no ip6 nat */ 810 run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL); 811 run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL); 812 813 run_command("WIFI NETWORKS", 20, 814 SU_PATH, "root", "wpa_cli", "IFNAME=wlan0", "list_networks", NULL); 815 816#ifdef FWDUMP_bcmdhd 817 run_command("ND OFFLOAD TABLE", 5, 818 SU_PATH, "root", WLUTIL, "nd_hostip", NULL); 819 820 run_command("DUMP WIFI INTERNAL COUNTERS (1)", 20, 821 SU_PATH, "root", WLUTIL, "counters", NULL); 822 823 run_command("ND OFFLOAD STATUS (1)", 5, 824 SU_PATH, "root", WLUTIL, "nd_status", NULL); 825 826#endif 827 dump_file("INTERRUPTS (1)", "/proc/interrupts"); 828 829 run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "connectivity", "--diag", NULL); 830 831#ifdef FWDUMP_bcmdhd 832 run_command("DUMP WIFI STATUS", 20, 833 SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL); 834 835 run_command("DUMP WIFI INTERNAL COUNTERS (2)", 20, 836 SU_PATH, "root", WLUTIL, "counters", NULL); 837 838 run_command("ND OFFLOAD STATUS (2)", 5, 839 SU_PATH, "root", WLUTIL, "nd_status", NULL); 840#endif 841 dump_file("INTERRUPTS (2)", "/proc/interrupts"); 842 843 print_properties(); 844 845 run_command("VOLD DUMP", 10, "vdc", "dump", NULL); 846 run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); 847 848 run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL); 849 850 run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); 851 852 printf("------ BACKLIGHTS ------\n"); 853 printf("LCD brightness="); 854 dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); 855 printf("Button brightness="); 856 dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); 857 printf("Keyboard brightness="); 858 dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); 859 printf("ALS mode="); 860 dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); 861 printf("LCD driver registers:\n"); 862 dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); 863 printf("\n"); 864 865 /* Binder state is expensive to look at as it uses a lot of memory. */ 866 dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log"); 867 dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log"); 868 dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions"); 869 dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats"); 870 dump_file("BINDER STATE", "/sys/kernel/debug/binder/state"); 871 872 printf("========================================================\n"); 873 printf("== Board\n"); 874 printf("========================================================\n"); 875 876 dumpstate_board(); 877 printf("\n"); 878 879 /* Migrate the ril_dumpstate to a dumpstate_board()? */ 880 char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0}; 881 property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30"); 882 if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) { 883 if (is_user_build()) { 884 // su does not exist on user builds, so try running without it. 885 // This way any implementations of vril-dump that do not require 886 // root can run on user builds. 887 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 888 "vril-dump", NULL); 889 } else { 890 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 891 SU_PATH, "root", "vril-dump", NULL); 892 } 893 } 894 895 printf("========================================================\n"); 896 printf("== Android Framework Services\n"); 897 printf("========================================================\n"); 898 899 run_command("DUMPSYS", 60, "dumpsys", "-t", "60", "--skip", "meminfo", "cpuinfo", NULL); 900 901 printf("========================================================\n"); 902 printf("== Checkins\n"); 903 printf("========================================================\n"); 904 905 run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "batterystats", "-c", NULL); 906 run_command("CHECKIN MEMINFO", 30, "dumpsys", "meminfo", "--checkin", NULL); 907 run_command("CHECKIN NETSTATS", 30, "dumpsys", "netstats", "--checkin", NULL); 908 run_command("CHECKIN PROCSTATS", 30, "dumpsys", "procstats", "-c", NULL); 909 run_command("CHECKIN USAGESTATS", 30, "dumpsys", "usagestats", "-c", NULL); 910 run_command("CHECKIN PACKAGE", 30, "dumpsys", "package", "--checkin", NULL); 911 912 printf("========================================================\n"); 913 printf("== Running Application Activities\n"); 914 printf("========================================================\n"); 915 916 run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL); 917 918 printf("========================================================\n"); 919 printf("== Running Application Services\n"); 920 printf("========================================================\n"); 921 922 run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL); 923 924 printf("========================================================\n"); 925 printf("== Running Application Providers\n"); 926 printf("========================================================\n"); 927 928 run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL); 929 930 931 printf("========================================================\n"); 932 printf("== Final progress (pid %d): %d/%d (originally %d)\n", 933 getpid(), progress, weight_total, WEIGHT_TOTAL); 934 printf("========================================================\n"); 935 printf("== dumpstate: done\n"); 936 printf("========================================================\n"); 937} 938 939static void usage() { 940 fprintf(stderr, 941 "usage: dumpstate [-h] [-b soundfile] [-e soundfile] [-o file [-d] [-p] " 942 "[-z]] [-s] [-S] [-q] [-B] [-P] [-R] [-V version]\n" 943 " -h: display this help message\n" 944 " -b: play sound file instead of vibrate, at beginning of job\n" 945 " -e: play sound file instead of vibrate, at end of job\n" 946 " -o: write to file (instead of stdout)\n" 947 " -d: append date to filename (requires -o)\n" 948 " -p: capture screenshot to filename.png (requires -o)\n" 949 " -z: generate zipped file (requires -o)\n" 950 " -s: write output to control socket (for init)\n" 951 " -S: write file location to control socket (for init; requires -o and -z)" 952 " -q: disable vibrate\n" 953 " -B: send broadcast when finished (requires -o)\n" 954 " -P: send broadcast when started and update system properties on " 955 "progress (requires -o and -B)\n" 956 " -R: take bugreport in remote mode (requires -o, -z, -d and -B, " 957 "shouldn't be used with -P)\n" 958 " -V: sets the bugreport format version (valid values: %s)\n", 959 VERSION_DEFAULT.c_str()); 960} 961 962static void sigpipe_handler(int n) { 963 // don't complain to stderr or stdout 964 _exit(EXIT_FAILURE); 965} 966 967/* adds the temporary report to the existing .zip file, closes the .zip file, and removes the 968 temporary file. 969 */ 970static bool finish_zip_file(const std::string& bugreport_name, const std::string& bugreport_path, 971 time_t now) { 972 if (!add_zip_entry(bugreport_name, bugreport_path)) { 973 MYLOGE("Failed to add text entry to .zip file\n"); 974 return false; 975 } 976 if (!add_text_zip_entry("main_entry.txt", bugreport_name)) { 977 MYLOGE("Failed to add main_entry.txt to .zip file\n"); 978 return false; 979 } 980 981 int32_t err = zip_writer->Finish(); 982 if (err) { 983 MYLOGE("zip_writer->Finish(): %s\n", ZipWriter::ErrorCodeString(err)); 984 return false; 985 } 986 987 if (is_user_build()) { 988 MYLOGD("Removing temporary file %s\n", bugreport_path.c_str()) 989 if (remove(bugreport_path.c_str())) { 990 ALOGW("remove(%s): %s\n", bugreport_path.c_str(), strerror(errno)); 991 } 992 } else { 993 MYLOGD("Keeping temporary file %s on non-user build\n", bugreport_path.c_str()) 994 } 995 996 return true; 997} 998 999static std::string SHA256_file_hash(std::string filepath) { 1000 ScopedFd fd(TEMP_FAILURE_RETRY(open(filepath.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC 1001 | O_NOFOLLOW))); 1002 if (fd.get() == -1) { 1003 MYLOGE("open(%s): %s\n", filepath.c_str(), strerror(errno)); 1004 return NULL; 1005 } 1006 1007 SHA256_CTX ctx; 1008 SHA256_init(&ctx); 1009 1010 std::vector<uint8_t> buffer(65536); 1011 while (1) { 1012 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd.get(), buffer.data(), buffer.size())); 1013 if (bytes_read == 0) { 1014 break; 1015 } else if (bytes_read == -1) { 1016 MYLOGE("read(%s): %s\n", filepath.c_str(), strerror(errno)); 1017 return NULL; 1018 } 1019 1020 SHA256_update(&ctx, buffer.data(), bytes_read); 1021 } 1022 1023 uint8_t hash[SHA256_DIGEST_SIZE]; 1024 memcpy(hash, SHA256_final(&ctx), SHA256_DIGEST_SIZE); 1025 char hash_buffer[SHA256_DIGEST_SIZE * 2 + 1]; 1026 for(size_t i = 0; i < SHA256_DIGEST_SIZE; i++) { 1027 sprintf(hash_buffer + (i * 2), "%02x", hash[i]); 1028 } 1029 hash_buffer[sizeof(hash_buffer) - 1] = 0; 1030 return std::string(hash_buffer); 1031} 1032 1033int main(int argc, char *argv[]) { 1034 struct sigaction sigact; 1035 int do_add_date = 0; 1036 int do_zip_file = 0; 1037 int do_vibrate = 1; 1038 char* use_outfile = 0; 1039 int use_socket = 0; 1040 int use_control_socket = 0; 1041 int do_fb = 0; 1042 int do_broadcast = 0; 1043 int do_early_screenshot = 0; 1044 int is_remote_mode = 0; 1045 std::string version = VERSION_DEFAULT; 1046 1047 now = time(NULL); 1048 1049 MYLOGI("begin\n"); 1050 1051 /* gets the sequential id */ 1052 char last_id[PROPERTY_VALUE_MAX]; 1053 property_get("dumpstate.last_id", last_id, "0"); 1054 id = strtoul(last_id, NULL, 10) + 1; 1055 snprintf(last_id, sizeof(last_id), "%lu", id); 1056 property_set("dumpstate.last_id", last_id); 1057 MYLOGI("dumpstate id: %lu\n", id); 1058 1059 /* clear SIGPIPE handler */ 1060 memset(&sigact, 0, sizeof(sigact)); 1061 sigact.sa_handler = sigpipe_handler; 1062 sigaction(SIGPIPE, &sigact, NULL); 1063 1064 /* set as high priority, and protect from OOM killer */ 1065 setpriority(PRIO_PROCESS, 0, -20); 1066 FILE *oom_adj = fopen("/proc/self/oom_adj", "we"); 1067 if (oom_adj) { 1068 fputs("-17", oom_adj); 1069 fclose(oom_adj); 1070 } 1071 1072 /* parse arguments */ 1073 std::string args; 1074 format_args(argc, const_cast<const char **>(argv), &args); 1075 MYLOGD("Dumpstate command line: %s\n", args.c_str()); 1076 int c; 1077 while ((c = getopt(argc, argv, "dho:svqzpPBRSV:")) != -1) { 1078 switch (c) { 1079 case 'd': do_add_date = 1; break; 1080 case 'z': do_zip_file = 1; break; 1081 case 'o': use_outfile = optarg; break; 1082 case 's': use_socket = 1; break; 1083 case 'S': use_control_socket = 1; break; 1084 case 'v': break; // compatibility no-op 1085 case 'q': do_vibrate = 0; break; 1086 case 'p': do_fb = 1; break; 1087 case 'P': do_update_progress = 1; break; 1088 case 'R': is_remote_mode = 1; break; 1089 case 'B': do_broadcast = 1; break; 1090 case 'V': version = optarg; break; 1091 case '?': printf("\n"); 1092 case 'h': 1093 usage(); 1094 exit(1); 1095 } 1096 } 1097 1098 if ((do_zip_file || do_add_date || do_update_progress || do_broadcast) && !use_outfile) { 1099 usage(); 1100 exit(1); 1101 } 1102 1103 if (use_control_socket && !do_zip_file) { 1104 usage(); 1105 exit(1); 1106 } 1107 1108 if (do_update_progress && !do_broadcast) { 1109 usage(); 1110 exit(1); 1111 } 1112 1113 if (is_remote_mode && (do_update_progress || !do_broadcast || !do_zip_file || !do_add_date)) { 1114 usage(); 1115 exit(1); 1116 } 1117 1118 if (version != VERSION_DEFAULT) { 1119 usage(); 1120 exit(1); 1121 } 1122 1123 MYLOGI("bugreport format version: %s\n", version.c_str()); 1124 1125 do_early_screenshot = do_update_progress; 1126 1127 // If we are going to use a socket, do it as early as possible 1128 // to avoid timeouts from bugreport. 1129 if (use_socket) { 1130 redirect_to_socket(stdout, "dumpstate"); 1131 } 1132 1133 if (use_control_socket) { 1134 MYLOGD("Opening control socket\n"); 1135 control_socket_fd = open_socket("dumpstate"); 1136 } 1137 1138 /* full path of the temporary file containing the bugreport */ 1139 std::string tmp_path; 1140 1141 /* full path of the file containing the dumpstate logs*/ 1142 std::string log_path; 1143 1144 /* full path of the systrace file, when enabled */ 1145 std::string systrace_path; 1146 1147 /* full path of the temporary file containing the screenshot (when requested) */ 1148 std::string screenshot_path; 1149 1150 /* base name (without suffix or extensions) of the bugreport files */ 1151 std::string base_name; 1152 1153 /* pointer to the actual path, be it zip or text */ 1154 std::string path; 1155 1156 /* pointer to the zipped file */ 1157 std::unique_ptr<FILE, int(*)(FILE*)> zip_file(NULL, fclose); 1158 1159 /* redirect output if needed */ 1160 bool is_redirecting = !use_socket && use_outfile; 1161 1162 if (is_redirecting) { 1163 bugreport_dir = dirname(use_outfile); 1164 base_name = basename(use_outfile); 1165 if (do_add_date) { 1166 char date[80]; 1167 strftime(date, sizeof(date), "%Y-%m-%d-%H-%M-%S", localtime(&now)); 1168 suffix = date; 1169 } else { 1170 suffix = "undated"; 1171 } 1172 char build_id[PROPERTY_VALUE_MAX]; 1173 property_get("ro.build.id", build_id, "UNKNOWN_BUILD"); 1174 base_name = base_name + "-" + build_id; 1175 if (do_fb) { 1176 // TODO: if dumpstate was an object, the paths could be internal variables and then 1177 // we could have a function to calculate the derived values, such as: 1178 // screenshot_path = GetPath(".png"); 1179 screenshot_path = bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1180 } 1181 tmp_path = bugreport_dir + "/" + base_name + "-" + suffix + ".tmp"; 1182 log_path = bugreport_dir + "/dumpstate_log-" + suffix + "-" 1183 + std::to_string(getpid()) + ".txt"; 1184 1185 MYLOGD("Bugreport dir: %s\n" 1186 "Base name: %s\n" 1187 "Suffix: %s\n" 1188 "Log path: %s\n" 1189 "Temporary path: %s\n" 1190 "Screenshot path: %s\n", 1191 bugreport_dir.c_str(), base_name.c_str(), suffix.c_str(), 1192 log_path.c_str(), tmp_path.c_str(), screenshot_path.c_str()); 1193 1194 if (do_zip_file) { 1195 path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1196 MYLOGD("Creating initial .zip file (%s)\n", path.c_str()); 1197 create_parent_dirs(path.c_str()); 1198 zip_file.reset(fopen(path.c_str(), "wb")); 1199 if (!zip_file) { 1200 MYLOGE("fopen(%s, 'wb'): %s\n", path.c_str(), strerror(errno)); 1201 do_zip_file = 0; 1202 } else { 1203 zip_writer.reset(new ZipWriter(zip_file.get())); 1204 } 1205 add_text_zip_entry("version.txt", version); 1206 } 1207 1208 if (do_update_progress) { 1209 std::vector<std::string> am_args = { 1210 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1211 "--es", "android.intent.extra.NAME", suffix, 1212 "--ei", "android.intent.extra.ID", std::to_string(id), 1213 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1214 "--ei", "android.intent.extra.MAX", std::to_string(WEIGHT_TOTAL), 1215 }; 1216 send_broadcast("android.intent.action.BUGREPORT_STARTED", am_args); 1217 } 1218 } 1219 1220 /* read /proc/cmdline before dropping root */ 1221 FILE *cmdline = fopen("/proc/cmdline", "re"); 1222 if (cmdline) { 1223 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 1224 fclose(cmdline); 1225 } 1226 1227 /* open the vibrator before dropping root */ 1228 std::unique_ptr<FILE, int(*)(FILE*)> vibrator(NULL, fclose); 1229 if (do_vibrate) { 1230 vibrator.reset(fopen("/sys/class/timed_output/vibrator/enable", "we")); 1231 if (vibrator) { 1232 vibrate(vibrator.get(), 150); 1233 } 1234 } 1235 1236 if (do_fb && do_early_screenshot) { 1237 if (screenshot_path.empty()) { 1238 // should not have happened 1239 MYLOGE("INTERNAL ERROR: skipping early screenshot because path was not set\n"); 1240 } else { 1241 MYLOGI("taking early screenshot\n"); 1242 take_screenshot(screenshot_path); 1243 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 1244 if (chown(screenshot_path.c_str(), AID_SHELL, AID_SHELL)) { 1245 MYLOGE("Unable to change ownership of screenshot file %s: %s\n", 1246 screenshot_path.c_str(), strerror(errno)); 1247 } 1248 } 1249 } 1250 1251 if (do_zip_file) { 1252 if (chown(path.c_str(), AID_SHELL, AID_SHELL)) { 1253 MYLOGE("Unable to change ownership of zip file %s: %s\n", path.c_str(), strerror(errno)); 1254 } 1255 } 1256 1257 if (is_redirecting) { 1258 redirect_to_file(stderr, const_cast<char*>(log_path.c_str())); 1259 if (chown(log_path.c_str(), AID_SHELL, AID_SHELL)) { 1260 MYLOGE("Unable to change ownership of dumpstate log file %s: %s\n", 1261 log_path.c_str(), strerror(errno)); 1262 } 1263 /* TODO: rather than generating a text file now and zipping it later, 1264 it would be more efficient to redirect stdout to the zip entry 1265 directly, but the libziparchive doesn't support that option yet. */ 1266 redirect_to_file(stdout, const_cast<char*>(tmp_path.c_str())); 1267 if (chown(tmp_path.c_str(), AID_SHELL, AID_SHELL)) { 1268 MYLOGE("Unable to change ownership of temporary bugreport file %s: %s\n", 1269 tmp_path.c_str(), strerror(errno)); 1270 } 1271 } 1272 // NOTE: there should be no stdout output until now, otherwise it would break the header. 1273 // In particular, DurationReport objects should be created passing 'title, NULL', so their 1274 // duration is logged into MYLOG instead. 1275 print_header(version); 1276 1277 // Dumps systrace right away, otherwise it will be filled with unnecessary events. 1278 dump_systrace(); 1279 1280 // Invoking the following dumpsys calls before dump_traces() to try and 1281 // keep the system stats as close to its initial state as possible. 1282 run_command_as_shell("DUMPSYS MEMINFO", 30, "dumpsys", "-t", "30", "meminfo", "-a", NULL); 1283 run_command_as_shell("DUMPSYS CPUINFO", 10, "dumpsys", "cpuinfo", "-a", NULL); 1284 1285 /* collect stack traces from Dalvik and native processes (needs root) */ 1286 dump_traces_path = dump_traces(); 1287 1288 /* Get the tombstone fds, recovery files, and mount info here while we are running as root. */ 1289 get_tombstone_fds(tombstone_data); 1290 add_dir(RECOVERY_DIR, true); 1291 add_dir(RECOVERY_DATA_DIR, true); 1292 add_dir(LOGPERSIST_DATA_DIR, false); 1293 if (!is_user_build()) { 1294 add_dir(PROFILE_DATA_DIR_CUR, true); 1295 add_dir(PROFILE_DATA_DIR_REF, true); 1296 } 1297 add_mountinfo(); 1298 1299 if (!drop_root_user()) { 1300 return -1; 1301 } 1302 1303 dumpstate(do_early_screenshot ? "": screenshot_path, version); 1304 1305 /* close output if needed */ 1306 if (is_redirecting) { 1307 fclose(stdout); 1308 } 1309 1310 /* rename or zip the (now complete) .tmp file to its final location */ 1311 if (use_outfile) { 1312 1313 /* check if user changed the suffix using system properties */ 1314 char key[PROPERTY_KEY_MAX]; 1315 char value[PROPERTY_VALUE_MAX]; 1316 snprintf(key, sizeof(key), "dumpstate.%d.name", getpid()); 1317 property_get(key, value, ""); 1318 bool change_suffix= false; 1319 if (value[0]) { 1320 /* must whitelist which characters are allowed, otherwise it could cross directories */ 1321 std::regex valid_regex("^[-_a-zA-Z0-9]+$"); 1322 if (std::regex_match(value, valid_regex)) { 1323 change_suffix = true; 1324 } else { 1325 MYLOGE("invalid suffix provided by user: %s\n", value); 1326 } 1327 } 1328 if (change_suffix) { 1329 MYLOGI("changing suffix from %s to %s\n", suffix.c_str(), value); 1330 suffix = value; 1331 if (!screenshot_path.empty()) { 1332 std::string new_screenshot_path = 1333 bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1334 if (rename(screenshot_path.c_str(), new_screenshot_path.c_str())) { 1335 MYLOGE("rename(%s, %s): %s\n", screenshot_path.c_str(), 1336 new_screenshot_path.c_str(), strerror(errno)); 1337 } else { 1338 screenshot_path = new_screenshot_path; 1339 } 1340 } 1341 } 1342 1343 bool do_text_file = true; 1344 if (do_zip_file) { 1345 std::string entry_name = base_name + "-" + suffix + ".txt"; 1346 MYLOGD("Adding main entry (%s) to .zip bugreport\n", entry_name.c_str()); 1347 if (!finish_zip_file(entry_name, tmp_path, now)) { 1348 MYLOGE("Failed to finish zip file; sending text bugreport instead\n"); 1349 do_text_file = true; 1350 } else { 1351 do_text_file = false; 1352 // Since zip file is already created, it needs to be renamed. 1353 std::string new_path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1354 if (path != new_path) { 1355 MYLOGD("Renaming zip file from %s to %s\n", path.c_str(), new_path.c_str()); 1356 if (rename(path.c_str(), new_path.c_str())) { 1357 MYLOGE("rename(%s, %s): %s\n", path.c_str(), 1358 new_path.c_str(), strerror(errno)); 1359 } else { 1360 path = new_path; 1361 } 1362 } 1363 } 1364 } 1365 if (do_text_file) { 1366 path = bugreport_dir + "/" + base_name + "-" + suffix + ".txt"; 1367 MYLOGD("Generating .txt bugreport at %s from %s\n", path.c_str(), tmp_path.c_str()); 1368 if (rename(tmp_path.c_str(), path.c_str())) { 1369 MYLOGE("rename(%s, %s): %s\n", tmp_path.c_str(), path.c_str(), strerror(errno)); 1370 path.clear(); 1371 } 1372 } 1373 if (use_control_socket) { 1374 if (do_text_file) { 1375 dprintf(control_socket_fd, "FAIL:could not create zip file, check %s " 1376 "for more details\n", log_path.c_str()); 1377 } else { 1378 dprintf(control_socket_fd, "OK:%s\n", path.c_str()); 1379 } 1380 } 1381 } 1382 1383 /* vibrate a few but shortly times to let user know it's finished */ 1384 if (vibrator) { 1385 for (int i = 0; i < 3; i++) { 1386 vibrate(vibrator.get(), 75); 1387 usleep((75 + 50) * 1000); 1388 } 1389 } 1390 1391 /* tell activity manager we're done */ 1392 if (do_broadcast) { 1393 if (!path.empty()) { 1394 MYLOGI("Final bugreport path: %s\n", path.c_str()); 1395 std::vector<std::string> am_args = { 1396 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1397 "--ei", "android.intent.extra.ID", std::to_string(id), 1398 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1399 "--ei", "android.intent.extra.MAX", std::to_string(weight_total), 1400 "--es", "android.intent.extra.BUGREPORT", path, 1401 "--es", "android.intent.extra.DUMPSTATE_LOG", log_path 1402 }; 1403 if (do_fb) { 1404 am_args.push_back("--es"); 1405 am_args.push_back("android.intent.extra.SCREENSHOT"); 1406 am_args.push_back(screenshot_path); 1407 } 1408 if (is_remote_mode) { 1409 am_args.push_back("--es"); 1410 am_args.push_back("android.intent.extra.REMOTE_BUGREPORT_HASH"); 1411 am_args.push_back(SHA256_file_hash(path)); 1412 send_broadcast("android.intent.action.REMOTE_BUGREPORT_FINISHED", am_args); 1413 } else { 1414 send_broadcast("android.intent.action.BUGREPORT_FINISHED", am_args); 1415 } 1416 } else { 1417 MYLOGE("Skipping finished broadcast because bugreport could not be generated\n"); 1418 } 1419 } 1420 1421 MYLOGD("Final progress: %d/%d (originally %d)\n", progress, weight_total, WEIGHT_TOTAL); 1422 MYLOGI("done\n"); 1423 1424 if (is_redirecting) { 1425 fclose(stderr); 1426 } 1427 1428 if (use_control_socket && control_socket_fd >= 0) { 1429 MYLOGD("Closing control socket\n"); 1430 close(control_socket_fd); 1431 } 1432 1433 return 0; 1434} 1435