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#define ALT_PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops-0" 71 72#define RAFT_DIR "/data/misc/raft/" 73#define RECOVERY_DIR "/cache/recovery" 74#define RECOVERY_DATA_DIR "/data/misc/recovery" 75#define LOGPERSIST_DATA_DIR "/data/misc/logd" 76#define TOMBSTONE_DIR "/data/tombstones" 77#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_" 78/* Can accomodate a tombstone number up to 9999. */ 79#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4) 80#define NUM_TOMBSTONES 10 81#define WLUTIL "/vendor/xbin/wlutil" 82 83typedef struct { 84 char name[TOMBSTONE_MAX_LEN]; 85 int fd; 86} tombstone_data_t; 87 88static tombstone_data_t tombstone_data[NUM_TOMBSTONES]; 89 90const std::string ZIP_ROOT_DIR = "FS"; 91std::string bugreport_dir; 92 93/* 94 * List of supported zip format versions. 95 * 96 * See bugreport-format.txt for more info. 97 */ 98static std::string VERSION_DEFAULT = "1.0"; 99 100bool is_user_build() { 101 return 0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1); 102} 103 104/* gets the tombstone data, according to the bugreport type: if zipped gets all tombstones, 105 * otherwise gets just those modified in the last half an hour. */ 106static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) { 107 time_t thirty_minutes_ago = now - 60*30; 108 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 109 snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i); 110 int fd = TEMP_FAILURE_RETRY(open(data[i].name, 111 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 112 struct stat st; 113 if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) && 114 (zip_writer || (time_t) st.st_mtime >= thirty_minutes_ago)) { 115 data[i].fd = fd; 116 } else { 117 close(fd); 118 data[i].fd = -1; 119 } 120 } 121} 122 123// for_each_pid() callback to get mount info about a process. 124void do_mountinfo(int pid, const char *name) { 125 char path[PATH_MAX]; 126 127 // Gets the the content of the /proc/PID/ns/mnt link, so only unique mount points 128 // are added. 129 snprintf(path, sizeof(path), "/proc/%d/ns/mnt", pid); 130 char linkname[PATH_MAX]; 131 ssize_t r = readlink(path, linkname, PATH_MAX); 132 if (r == -1) { 133 MYLOGE("Unable to read link for %s: %s\n", path, strerror(errno)); 134 return; 135 } 136 linkname[r] = '\0'; 137 138 if (mount_points.find(linkname) == mount_points.end()) { 139 // First time this mount point was found: add it 140 snprintf(path, sizeof(path), "/proc/%d/mountinfo", pid); 141 if (add_zip_entry(ZIP_ROOT_DIR + path, path)) { 142 mount_points.insert(linkname); 143 } else { 144 MYLOGE("Unable to add mountinfo %s to zip file\n", path); 145 } 146 } 147} 148 149void add_mountinfo() { 150 if (!zip_writer) return; 151 const char *title = "MOUNT INFO"; 152 mount_points.clear(); 153 DurationReporter duration_reporter(title, NULL); 154 for_each_pid(do_mountinfo, NULL); 155 MYLOGD("%s: %d entries added to zip file\n", title, (int) mount_points.size()); 156} 157 158static void dump_dev_files(const char *title, const char *driverpath, const char *filename) 159{ 160 DIR *d; 161 struct dirent *de; 162 char path[PATH_MAX]; 163 164 d = opendir(driverpath); 165 if (d == NULL) { 166 return; 167 } 168 169 while ((de = readdir(d))) { 170 if (de->d_type != DT_LNK) { 171 continue; 172 } 173 snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename); 174 dump_file(title, path); 175 } 176 177 closedir(d); 178} 179 180static void dump_systrace() { 181 if (!zip_writer) { 182 MYLOGD("Not dumping systrace because zip_writer is not set\n"); 183 return; 184 } 185 std::string systrace_path = bugreport_dir + "/systrace-" + suffix + ".txt"; 186 if (systrace_path.empty()) { 187 MYLOGE("Not dumping systrace because path is empty\n"); 188 return; 189 } 190 const char* path = "/sys/kernel/debug/tracing/tracing_on"; 191 long int is_tracing; 192 if (read_file_as_long(path, &is_tracing)) { 193 return; // error already logged 194 } 195 if (is_tracing <= 0) { 196 MYLOGD("Skipping systrace because '%s' content is '%ld'\n", path, is_tracing); 197 return; 198 } 199 200 MYLOGD("Running '/system/bin/atrace --async_dump -o %s', which can take several minutes", 201 systrace_path.c_str()); 202 if (run_command("SYSTRACE", 120, "/system/bin/atrace", "--async_dump", "-o", 203 systrace_path.c_str(), NULL)) { 204 MYLOGE("systrace timed out, its zip entry will be incomplete\n"); 205 // TODO: run_command tries to kill the process, but atrace doesn't die peacefully; ideally, 206 // we should call strace to stop itself, but there is no such option yet (just a 207 // --async_stop, which stops and dump 208 // if (run_command("SYSTRACE", 10, "/system/bin/atrace", "--kill", NULL)) { 209 // MYLOGE("could not stop systrace "); 210 // } 211 } 212 if (!add_zip_entry("systrace.txt", systrace_path)) { 213 MYLOGE("Unable to add systrace file %s to zip file\n", systrace_path.c_str()); 214 } else { 215 if (remove(systrace_path.c_str())) { 216 MYLOGE("Error removing systrace file %s: %s", systrace_path.c_str(), strerror(errno)); 217 } 218 } 219} 220 221static bool skip_not_stat(const char *path) { 222 static const char stat[] = "/stat"; 223 size_t len = strlen(path); 224 if (path[len - 1] == '/') { /* Directory? */ 225 return false; 226 } 227 return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */ 228} 229 230static bool skip_none(const char *path) { 231 return false; 232} 233 234static const char mmcblk0[] = "/sys/block/mmcblk0/"; 235unsigned long worst_write_perf = 20000; /* in KB/s */ 236 237// 238// stat offsets 239// Name units description 240// ---- ----- ----------- 241// read I/Os requests number of read I/Os processed 242#define __STAT_READ_IOS 0 243// read merges requests number of read I/Os merged with in-queue I/O 244#define __STAT_READ_MERGES 1 245// read sectors sectors number of sectors read 246#define __STAT_READ_SECTORS 2 247// read ticks milliseconds total wait time for read requests 248#define __STAT_READ_TICKS 3 249// write I/Os requests number of write I/Os processed 250#define __STAT_WRITE_IOS 4 251// write merges requests number of write I/Os merged with in-queue I/O 252#define __STAT_WRITE_MERGES 5 253// write sectors sectors number of sectors written 254#define __STAT_WRITE_SECTORS 6 255// write ticks milliseconds total wait time for write requests 256#define __STAT_WRITE_TICKS 7 257// in_flight requests number of I/Os currently in flight 258#define __STAT_IN_FLIGHT 8 259// io_ticks milliseconds total time this block device has been active 260#define __STAT_IO_TICKS 9 261// time_in_queue milliseconds total wait time for all requests 262#define __STAT_IN_QUEUE 10 263#define __STAT_NUMBER_FIELD 11 264// 265// read I/Os, write I/Os 266// ===================== 267// 268// These values increment when an I/O request completes. 269// 270// read merges, write merges 271// ========================= 272// 273// These values increment when an I/O request is merged with an 274// already-queued I/O request. 275// 276// read sectors, write sectors 277// =========================== 278// 279// These values count the number of sectors read from or written to this 280// block device. The "sectors" in question are the standard UNIX 512-byte 281// sectors, not any device- or filesystem-specific block size. The 282// counters are incremented when the I/O completes. 283#define SECTOR_SIZE 512 284// 285// read ticks, write ticks 286// ======================= 287// 288// These values count the number of milliseconds that I/O requests have 289// waited on this block device. If there are multiple I/O requests waiting, 290// these values will increase at a rate greater than 1000/second; for 291// example, if 60 read requests wait for an average of 30 ms, the read_ticks 292// field will increase by 60*30 = 1800. 293// 294// in_flight 295// ========= 296// 297// This value counts the number of I/O requests that have been issued to 298// the device driver but have not yet completed. It does not include I/O 299// requests that are in the queue but not yet issued to the device driver. 300// 301// io_ticks 302// ======== 303// 304// This value counts the number of milliseconds during which the device has 305// had I/O requests queued. 306// 307// time_in_queue 308// ============= 309// 310// This value counts the number of milliseconds that I/O requests have waited 311// on this block device. If there are multiple I/O requests waiting, this 312// value will increase as the product of the number of milliseconds times the 313// number of requests waiting (see "read ticks" above for an example). 314#define S_TO_MS 1000 315// 316 317static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) { 318 unsigned long long fields[__STAT_NUMBER_FIELD]; 319 bool z; 320 char *cp, *buffer = NULL; 321 size_t i = 0; 322 FILE *fp = fdopen(fd, "rb"); 323 getline(&buffer, &i, fp); 324 fclose(fp); 325 if (!buffer) { 326 return -errno; 327 } 328 i = strlen(buffer); 329 while ((i > 0) && (buffer[i - 1] == '\n')) { 330 buffer[--i] = '\0'; 331 } 332 if (!*buffer) { 333 free(buffer); 334 return 0; 335 } 336 z = true; 337 for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) { 338 fields[i] = strtoull(cp, &cp, 10); 339 if (fields[i] != 0) { 340 z = false; 341 } 342 } 343 if (z) { /* never accessed */ 344 free(buffer); 345 return 0; 346 } 347 348 if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) { 349 path += sizeof(mmcblk0) - 1; 350 } 351 352 printf("%s: %s\n", path, buffer); 353 free(buffer); 354 355 if (fields[__STAT_IO_TICKS]) { 356 unsigned long read_perf = 0; 357 unsigned long read_ios = 0; 358 if (fields[__STAT_READ_TICKS]) { 359 unsigned long long divisor = fields[__STAT_READ_TICKS] 360 * fields[__STAT_IO_TICKS]; 361 read_perf = ((unsigned long long)SECTOR_SIZE 362 * fields[__STAT_READ_SECTORS] 363 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 364 / divisor; 365 read_ios = ((unsigned long long)S_TO_MS * fields[__STAT_READ_IOS] 366 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 367 / divisor; 368 } 369 370 unsigned long write_perf = 0; 371 unsigned long write_ios = 0; 372 if (fields[__STAT_WRITE_TICKS]) { 373 unsigned long long divisor = fields[__STAT_WRITE_TICKS] 374 * fields[__STAT_IO_TICKS]; 375 write_perf = ((unsigned long long)SECTOR_SIZE 376 * fields[__STAT_WRITE_SECTORS] 377 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 378 / divisor; 379 write_ios = ((unsigned long long)S_TO_MS * fields[__STAT_WRITE_IOS] 380 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 381 / divisor; 382 } 383 384 unsigned queue = (fields[__STAT_IN_QUEUE] 385 + (fields[__STAT_IO_TICKS] >> 1)) 386 / fields[__STAT_IO_TICKS]; 387 388 if (!write_perf && !write_ios) { 389 printf("%s: perf(ios) rd: %luKB/s(%lu/s) q: %u\n", 390 path, read_perf, read_ios, queue); 391 } else { 392 printf("%s: perf(ios) rd: %luKB/s(%lu/s) wr: %luKB/s(%lu/s) q: %u\n", 393 path, read_perf, read_ios, write_perf, write_ios, queue); 394 } 395 396 /* bugreport timeout factor adjustment */ 397 if ((write_perf > 1) && (write_perf < worst_write_perf)) { 398 worst_write_perf = write_perf; 399 } 400 } 401 return 0; 402} 403 404/* Copied policy from system/core/logd/LogBuffer.cpp */ 405 406#define LOG_BUFFER_SIZE (256 * 1024) 407#define LOG_BUFFER_MIN_SIZE (64 * 1024UL) 408#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) 409 410static bool valid_size(unsigned long value) { 411 if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) { 412 return false; 413 } 414 415 long pages = sysconf(_SC_PHYS_PAGES); 416 if (pages < 1) { 417 return true; 418 } 419 420 long pagesize = sysconf(_SC_PAGESIZE); 421 if (pagesize <= 1) { 422 pagesize = PAGE_SIZE; 423 } 424 425 // maximum memory impact a somewhat arbitrary ~3% 426 pages = (pages + 31) / 32; 427 unsigned long maximum = pages * pagesize; 428 429 if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) { 430 return true; 431 } 432 433 return value <= maximum; 434} 435 436static unsigned long property_get_size(const char *key) { 437 unsigned long value; 438 char *cp, property[PROPERTY_VALUE_MAX]; 439 440 property_get(key, property, ""); 441 value = strtoul(property, &cp, 10); 442 443 switch(*cp) { 444 case 'm': 445 case 'M': 446 value *= 1024; 447 /* FALLTHRU */ 448 case 'k': 449 case 'K': 450 value *= 1024; 451 /* FALLTHRU */ 452 case '\0': 453 break; 454 455 default: 456 value = 0; 457 } 458 459 if (!valid_size(value)) { 460 value = 0; 461 } 462 463 return value; 464} 465 466/* timeout in ms */ 467static unsigned long logcat_timeout(const char *name) { 468 static const char global_tuneable[] = "persist.logd.size"; // Settings App 469 static const char global_default[] = "ro.logd.size"; // BoardConfig.mk 470 char key[PROP_NAME_MAX]; 471 unsigned long property_size, default_size; 472 473 default_size = property_get_size(global_tuneable); 474 if (!default_size) { 475 default_size = property_get_size(global_default); 476 } 477 478 snprintf(key, sizeof(key), "%s.%s", global_tuneable, name); 479 property_size = property_get_size(key); 480 481 if (!property_size) { 482 snprintf(key, sizeof(key), "%s.%s", global_default, name); 483 property_size = property_get_size(key); 484 } 485 486 if (!property_size) { 487 property_size = default_size; 488 } 489 490 if (!property_size) { 491 property_size = LOG_BUFFER_SIZE; 492 } 493 494 /* Engineering margin is ten-fold our guess */ 495 return 10 * (property_size + worst_write_perf) / worst_write_perf; 496} 497 498/* End copy from system/core/logd/LogBuffer.cpp */ 499 500/* dumps the current system state to stdout */ 501static void print_header(std::string version) { 502 char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; 503 char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; 504 char network[PROPERTY_VALUE_MAX], date[80]; 505 506 property_get("ro.build.display.id", build, "(unknown)"); 507 property_get("ro.build.fingerprint", fingerprint, "(unknown)"); 508 property_get("ro.build.type", build_type, "(unknown)"); 509 property_get("ro.baseband", radio, "(unknown)"); 510 property_get("ro.bootloader", bootloader, "(unknown)"); 511 property_get("gsm.operator.alpha", network, "(unknown)"); 512 strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); 513 514 printf("========================================================\n"); 515 printf("== dumpstate: %s\n", date); 516 printf("========================================================\n"); 517 518 printf("\n"); 519 printf("Build: %s\n", build); 520 printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */ 521 printf("Bootloader: %s\n", bootloader); 522 printf("Radio: %s\n", radio); 523 printf("Network: %s\n", network); 524 525 printf("Kernel: "); 526 dump_file(NULL, "/proc/version"); 527 printf("Command line: %s\n", strtok(cmdline_buf, "\n")); 528 printf("Bugreport format version: %s\n", version.c_str()); 529 printf("Dumpstate info: id=%lu pid=%d\n", id, getpid()); 530 printf("\n"); 531} 532 533bool add_zip_entry_from_fd(const std::string& entry_name, int fd) { 534 if (!zip_writer) { 535 MYLOGD("Not adding zip entry %s from fd because zip_writer is not set\n", 536 entry_name.c_str()); 537 return false; 538 } 539 // Logging statement below is useful to time how long each entry takes, but it's too verbose. 540 // MYLOGD("Adding zip entry %s\n", entry_name.c_str()); 541 int32_t err = zip_writer->StartEntryWithTime(entry_name.c_str(), 542 ZipWriter::kCompress, get_mtime(fd, now)); 543 if (err) { 544 MYLOGE("zip_writer->StartEntryWithTime(%s): %s\n", entry_name.c_str(), 545 ZipWriter::ErrorCodeString(err)); 546 return false; 547 } 548 549 std::vector<uint8_t> buffer(65536); 550 while (1) { 551 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer.data(), sizeof(buffer))); 552 if (bytes_read == 0) { 553 break; 554 } else if (bytes_read == -1) { 555 MYLOGE("read(%s): %s\n", entry_name.c_str(), strerror(errno)); 556 return false; 557 } 558 err = zip_writer->WriteBytes(buffer.data(), bytes_read); 559 if (err) { 560 MYLOGE("zip_writer->WriteBytes(): %s\n", ZipWriter::ErrorCodeString(err)); 561 return false; 562 } 563 } 564 565 err = zip_writer->FinishEntry(); 566 if (err) { 567 MYLOGE("zip_writer->FinishEntry(): %s\n", ZipWriter::ErrorCodeString(err)); 568 return false; 569 } 570 571 return true; 572} 573 574bool add_zip_entry(const std::string& entry_name, const std::string& entry_path) { 575 ScopedFd fd(TEMP_FAILURE_RETRY(open(entry_path.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC))); 576 if (fd.get() == -1) { 577 MYLOGE("open(%s): %s\n", entry_path.c_str(), strerror(errno)); 578 return false; 579 } 580 581 return add_zip_entry_from_fd(entry_name, fd.get()); 582} 583 584/* adds a file to the existing zipped bugreport */ 585static int _add_file_from_fd(const char *title, const char *path, int fd) { 586 return add_zip_entry_from_fd(ZIP_ROOT_DIR + path, fd) ? 0 : 1; 587} 588 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 dump_iptables() { 630 run_command("IPTABLES", 10, "iptables", "-L", "-nvx", NULL); 631 run_command("IP6TABLES", 10, "ip6tables", "-L", "-nvx", NULL); 632 run_command("IPTABLE NAT", 10, "iptables", "-t", "nat", "-L", "-nvx", NULL); 633 /* no ip6 nat */ 634 run_command("IPTABLE RAW", 10, "iptables", "-t", "raw", "-L", "-nvx", NULL); 635 run_command("IP6TABLE RAW", 10, "ip6tables", "-t", "raw", "-L", "-nvx", NULL); 636} 637 638static void dumpstate(const std::string& screenshot_path, const std::string& version) { 639 DurationReporter duration_reporter("DUMPSTATE"); 640 unsigned long timeout; 641 642 dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version"); 643 run_command("UPTIME", 10, "uptime", NULL); 644 dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd); 645 dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd"); 646 dump_file("MEMORY INFO", "/proc/meminfo"); 647 run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-H", NULL); 648 run_command("PROCRANK", 20, SU_PATH, "root", "procrank", NULL); 649 dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat"); 650 dump_file("VMALLOC INFO", "/proc/vmallocinfo"); 651 dump_file("SLAB INFO", "/proc/slabinfo"); 652 dump_file("ZONEINFO", "/proc/zoneinfo"); 653 dump_file("PAGETYPEINFO", "/proc/pagetypeinfo"); 654 dump_file("BUDDYINFO", "/proc/buddyinfo"); 655 dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index"); 656 657 dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources"); 658 dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); 659 dump_file("KERNEL SYNC", "/d/sync"); 660 661 run_command("PROCESSES AND THREADS", 10, "ps", "-Z", "-t", "-p", "-P", NULL); 662 run_command("LIBRANK", 10, SU_PATH, "root", "librank", NULL); 663 664 run_command("PRINTENV", 10, "printenv", NULL); 665 run_command("NETSTAT", 10, "netstat", "-n", NULL); 666 run_command("LSMOD", 10, "lsmod", NULL); 667 668 do_dmesg(); 669 670 run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL); 671 for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES"); 672 for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); 673 for_each_pid(show_showtime, "PROCESS TIMES (pid cmd user system iowait+percentage)"); 674 675 if (!screenshot_path.empty()) { 676 MYLOGI("taking late screenshot\n"); 677 take_screenshot(screenshot_path); 678 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 679 } 680 681 // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); 682 // calculate timeout 683 timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash"); 684 if (timeout < 20000) { 685 timeout = 20000; 686 } 687 run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime", 688 "-v", "printable", 689 "-d", 690 "*:v", NULL); 691 timeout = logcat_timeout("events"); 692 if (timeout < 20000) { 693 timeout = 20000; 694 } 695 run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events", 696 "-v", "threadtime", 697 "-v", "printable", 698 "-d", 699 "*:v", NULL); 700 timeout = logcat_timeout("radio"); 701 if (timeout < 20000) { 702 timeout = 20000; 703 } 704 run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio", 705 "-v", "threadtime", 706 "-v", "printable", 707 "-d", 708 "*:v", NULL); 709 710 run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL); 711 712 run_command("RAFT LOGS", 600, SU_PATH, "root", "logcompressor", "-r", RAFT_DIR, NULL); 713 714 /* show the traces we collected in main(), if that was done */ 715 if (dump_traces_path != NULL) { 716 dump_file("VM TRACES JUST NOW", dump_traces_path); 717 } 718 719 /* only show ANR traces if they're less than 15 minutes old */ 720 struct stat st; 721 char anr_traces_path[PATH_MAX]; 722 property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); 723 if (!anr_traces_path[0]) { 724 printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); 725 } else { 726 int fd = TEMP_FAILURE_RETRY(open(anr_traces_path, 727 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 728 if (fd < 0) { 729 printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); 730 } else { 731 dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd); 732 } 733 } 734 735 /* slow traces for slow operations */ 736 if (anr_traces_path[0] != 0) { 737 int tail = strlen(anr_traces_path)-1; 738 while (tail > 0 && anr_traces_path[tail] != '/') { 739 tail--; 740 } 741 int i = 0; 742 while (1) { 743 sprintf(anr_traces_path+tail+1, "slow%02d.txt", i); 744 if (stat(anr_traces_path, &st)) { 745 // No traces file at this index, done with the files. 746 break; 747 } 748 dump_file("VM TRACES WHEN SLOW", anr_traces_path); 749 i++; 750 } 751 } 752 753 int dumped = 0; 754 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 755 if (tombstone_data[i].fd != -1) { 756 const char *name = tombstone_data[i].name; 757 int fd = tombstone_data[i].fd; 758 dumped = 1; 759 if (zip_writer) { 760 if (!add_zip_entry_from_fd(ZIP_ROOT_DIR + name, fd)) { 761 MYLOGE("Unable to add tombstone %s to zip file\n", name); 762 } 763 } else { 764 dump_file_from_fd("TOMBSTONE", name, fd); 765 } 766 close(fd); 767 tombstone_data[i].fd = -1; 768 } 769 } 770 if (!dumped) { 771 printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR); 772 } 773 774 dump_file("NETWORK DEV INFO", "/proc/net/dev"); 775 dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all"); 776 dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt"); 777 dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl"); 778 dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats"); 779 780 if (!stat(PSTORE_LAST_KMSG, &st)) { 781 /* Also TODO: Make console-ramoops CAP_SYSLOG protected. */ 782 dump_file("LAST KMSG", PSTORE_LAST_KMSG); 783 } else if (!stat(ALT_PSTORE_LAST_KMSG, &st)) { 784 dump_file("LAST KMSG", ALT_PSTORE_LAST_KMSG); 785 } else { 786 /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */ 787 dump_file("LAST KMSG", "/proc/last_kmsg"); 788 } 789 790 /* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */ 791 run_command("LAST LOGCAT", 10, "logcat", "-L", 792 "-b", "all", 793 "-v", "threadtime", 794 "-v", "printable", 795 "-d", 796 "*:v", NULL); 797 798 /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */ 799 800 run_command("NETWORK INTERFACES", 10, "ip", "link", NULL); 801 802 run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL); 803 run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL); 804 805 run_command("IP RULES", 10, "ip", "rule", "show", NULL); 806 run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL); 807 808 dump_route_tables(); 809 810 run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL); 811 run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL); 812 run_command("MULTICAST ADDRESSES", 10, "ip", "maddr", NULL); 813 run_command("WIFI NETWORKS", 20, "wpa_cli", "IFNAME=wlan0", "list_networks", NULL); 814 815#ifdef FWDUMP_bcmdhd 816 run_command("ND OFFLOAD TABLE", 5, 817 SU_PATH, "root", WLUTIL, "nd_hostip", NULL); 818 819 run_command("DUMP WIFI INTERNAL COUNTERS (1)", 20, 820 SU_PATH, "root", WLUTIL, "counters", NULL); 821 822 run_command("ND OFFLOAD STATUS (1)", 5, 823 SU_PATH, "root", WLUTIL, "nd_status", NULL); 824 825#endif 826 dump_file("INTERRUPTS (1)", "/proc/interrupts"); 827 828 run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "-t", "10", "connectivity", "--diag", NULL); 829 830#ifdef FWDUMP_bcmdhd 831 run_command("DUMP WIFI STATUS", 20, 832 SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL); 833 834 run_command("DUMP WIFI INTERNAL COUNTERS (2)", 20, 835 SU_PATH, "root", WLUTIL, "counters", NULL); 836 837 run_command("ND OFFLOAD STATUS (2)", 5, 838 SU_PATH, "root", WLUTIL, "nd_status", NULL); 839#endif 840 dump_file("INTERRUPTS (2)", "/proc/interrupts"); 841 842 print_properties(); 843 844 run_command("VOLD DUMP", 10, "vdc", "dump", NULL); 845 run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); 846 847 run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL); 848 849 run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); 850 851 printf("------ BACKLIGHTS ------\n"); 852 printf("LCD brightness="); 853 dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); 854 printf("Button brightness="); 855 dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); 856 printf("Keyboard brightness="); 857 dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); 858 printf("ALS mode="); 859 dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); 860 printf("LCD driver registers:\n"); 861 dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); 862 printf("\n"); 863 864 /* Binder state is expensive to look at as it uses a lot of memory. */ 865 dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log"); 866 dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log"); 867 dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions"); 868 dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats"); 869 dump_file("BINDER STATE", "/sys/kernel/debug/binder/state"); 870 871 printf("========================================================\n"); 872 printf("== Board\n"); 873 printf("========================================================\n"); 874 875 dumpstate_board(); 876 printf("\n"); 877 878 /* Migrate the ril_dumpstate to a dumpstate_board()? */ 879 char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0}; 880 property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30"); 881 if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) { 882 if (is_user_build()) { 883 // su does not exist on user builds, so try running without it. 884 // This way any implementations of vril-dump that do not require 885 // root can run on user builds. 886 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 887 "vril-dump", NULL); 888 } else { 889 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 890 SU_PATH, "root", "vril-dump", NULL); 891 } 892 } 893 894 printf("========================================================\n"); 895 printf("== Android Framework Services\n"); 896 printf("========================================================\n"); 897 898 run_command("DUMPSYS", 60, "dumpsys", "-t", "60", "--skip", "meminfo", "cpuinfo", NULL); 899 900 printf("========================================================\n"); 901 printf("== Checkins\n"); 902 printf("========================================================\n"); 903 904 run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "-t", "30", "batterystats", "-c", NULL); 905 run_command("CHECKIN MEMINFO", 30, "dumpsys", "-t", "30", "meminfo", "--checkin", NULL); 906 run_command("CHECKIN NETSTATS", 30, "dumpsys", "-t", "30", "netstats", "--checkin", NULL); 907 run_command("CHECKIN PROCSTATS", 30, "dumpsys", "-t", "30", "procstats", "-c", NULL); 908 run_command("CHECKIN USAGESTATS", 30, "dumpsys", "-t", "30", "usagestats", "-c", NULL); 909 run_command("CHECKIN PACKAGE", 30, "dumpsys", "-t", "30", "package", "--checkin", NULL); 910 911 printf("========================================================\n"); 912 printf("== Running Application Activities\n"); 913 printf("========================================================\n"); 914 915 run_command("APP ACTIVITIES", 30, "dumpsys", "-t", "30", "activity", "all", NULL); 916 917 printf("========================================================\n"); 918 printf("== Running Application Services\n"); 919 printf("========================================================\n"); 920 921 run_command("APP SERVICES", 30, "dumpsys", "-t", "30", "activity", "service", "all", NULL); 922 923 printf("========================================================\n"); 924 printf("== Running Application Providers\n"); 925 printf("========================================================\n"); 926 927 run_command("APP SERVICES", 30, "dumpsys", "-t", "30", "activity", "provider", "all", NULL); 928 929 930 printf("========================================================\n"); 931 printf("== Final progress (pid %d): %d/%d (originally %d)\n", 932 getpid(), progress, weight_total, WEIGHT_TOTAL); 933 printf("========================================================\n"); 934 printf("== dumpstate: done\n"); 935 printf("========================================================\n"); 936} 937 938static void usage() { 939 fprintf(stderr, 940 "usage: dumpstate [-h] [-b soundfile] [-e soundfile] [-o file [-d] [-p] " 941 "[-z]] [-s] [-S] [-q] [-B] [-P] [-R] [-V version]\n" 942 " -h: display this help message\n" 943 " -b: play sound file instead of vibrate, at beginning of job\n" 944 " -e: play sound file instead of vibrate, at end of job\n" 945 " -o: write to file (instead of stdout)\n" 946 " -d: append date to filename (requires -o)\n" 947 " -p: capture screenshot to filename.png (requires -o)\n" 948 " -z: generate zipped file (requires -o)\n" 949 " -s: write output to control socket (for init)\n" 950 " -S: write file location to control socket (for init; requires -o and -z)" 951 " -q: disable vibrate\n" 952 " -B: send broadcast when finished (requires -o)\n" 953 " -P: send broadcast when started and update system properties on " 954 "progress (requires -o and -B)\n" 955 " -R: take bugreport in remote mode (requires -o, -z, -d and -B, " 956 "shouldn't be used with -P)\n" 957 " -V: sets the bugreport format version (valid values: %s)\n", 958 VERSION_DEFAULT.c_str()); 959} 960 961static void sigpipe_handler(int n) { 962 // don't complain to stderr or stdout 963 _exit(EXIT_FAILURE); 964} 965 966/* adds the temporary report to the existing .zip file, closes the .zip file, and removes the 967 temporary file. 968 */ 969static bool finish_zip_file(const std::string& bugreport_name, const std::string& bugreport_path, 970 time_t now) { 971 if (!add_zip_entry(bugreport_name, bugreport_path)) { 972 MYLOGE("Failed to add text entry to .zip file\n"); 973 return false; 974 } 975 if (!add_text_zip_entry("main_entry.txt", bugreport_name)) { 976 MYLOGE("Failed to add main_entry.txt to .zip file\n"); 977 return false; 978 } 979 980 int32_t err = zip_writer->Finish(); 981 if (err) { 982 MYLOGE("zip_writer->Finish(): %s\n", ZipWriter::ErrorCodeString(err)); 983 return false; 984 } 985 986 if (is_user_build()) { 987 MYLOGD("Removing temporary file %s\n", bugreport_path.c_str()) 988 if (remove(bugreport_path.c_str())) { 989 ALOGW("remove(%s): %s\n", bugreport_path.c_str(), strerror(errno)); 990 } 991 } else { 992 MYLOGD("Keeping temporary file %s on non-user build\n", bugreport_path.c_str()) 993 } 994 995 return true; 996} 997 998static std::string SHA256_file_hash(std::string filepath) { 999 ScopedFd fd(TEMP_FAILURE_RETRY(open(filepath.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC 1000 | O_NOFOLLOW))); 1001 if (fd.get() == -1) { 1002 MYLOGE("open(%s): %s\n", filepath.c_str(), strerror(errno)); 1003 return NULL; 1004 } 1005 1006 SHA256_CTX ctx; 1007 SHA256_init(&ctx); 1008 1009 std::vector<uint8_t> buffer(65536); 1010 while (1) { 1011 ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd.get(), buffer.data(), buffer.size())); 1012 if (bytes_read == 0) { 1013 break; 1014 } else if (bytes_read == -1) { 1015 MYLOGE("read(%s): %s\n", filepath.c_str(), strerror(errno)); 1016 return NULL; 1017 } 1018 1019 SHA256_update(&ctx, buffer.data(), bytes_read); 1020 } 1021 1022 uint8_t hash[SHA256_DIGEST_SIZE]; 1023 memcpy(hash, SHA256_final(&ctx), SHA256_DIGEST_SIZE); 1024 char hash_buffer[SHA256_DIGEST_SIZE * 2 + 1]; 1025 for(size_t i = 0; i < SHA256_DIGEST_SIZE; i++) { 1026 sprintf(hash_buffer + (i * 2), "%02x", hash[i]); 1027 } 1028 hash_buffer[sizeof(hash_buffer) - 1] = 0; 1029 return std::string(hash_buffer); 1030} 1031 1032int main(int argc, char *argv[]) { 1033 struct sigaction sigact; 1034 int do_add_date = 0; 1035 int do_zip_file = 0; 1036 int do_vibrate = 1; 1037 char* use_outfile = 0; 1038 int use_socket = 0; 1039 int use_control_socket = 0; 1040 int do_fb = 0; 1041 int do_broadcast = 0; 1042 int do_early_screenshot = 0; 1043 int is_remote_mode = 0; 1044 std::string version = VERSION_DEFAULT; 1045 1046 now = time(NULL); 1047 1048 MYLOGI("begin\n"); 1049 1050 /* gets the sequential id */ 1051 char last_id[PROPERTY_VALUE_MAX]; 1052 property_get("dumpstate.last_id", last_id, "0"); 1053 id = strtoul(last_id, NULL, 10) + 1; 1054 snprintf(last_id, sizeof(last_id), "%lu", id); 1055 property_set("dumpstate.last_id", last_id); 1056 MYLOGI("dumpstate id: %lu\n", id); 1057 1058 /* clear SIGPIPE handler */ 1059 memset(&sigact, 0, sizeof(sigact)); 1060 sigact.sa_handler = sigpipe_handler; 1061 sigaction(SIGPIPE, &sigact, NULL); 1062 1063 /* set as high priority, and protect from OOM killer */ 1064 setpriority(PRIO_PROCESS, 0, -20); 1065 FILE *oom_adj = fopen("/proc/self/oom_adj", "we"); 1066 if (oom_adj) { 1067 fputs("-17", oom_adj); 1068 fclose(oom_adj); 1069 } 1070 1071 /* parse arguments */ 1072 std::string args; 1073 format_args(argc, const_cast<const char **>(argv), &args); 1074 MYLOGD("Dumpstate command line: %s\n", args.c_str()); 1075 int c; 1076 while ((c = getopt(argc, argv, "dho:svqzpPBRSV:")) != -1) { 1077 switch (c) { 1078 case 'd': do_add_date = 1; break; 1079 case 'z': do_zip_file = 1; break; 1080 case 'o': use_outfile = optarg; break; 1081 case 's': use_socket = 1; break; 1082 case 'S': use_control_socket = 1; break; 1083 case 'v': break; // compatibility no-op 1084 case 'q': do_vibrate = 0; break; 1085 case 'p': do_fb = 1; break; 1086 case 'P': do_update_progress = 1; break; 1087 case 'R': is_remote_mode = 1; break; 1088 case 'B': do_broadcast = 1; break; 1089 case 'V': version = optarg; break; 1090 case '?': printf("\n"); 1091 case 'h': 1092 usage(); 1093 exit(1); 1094 } 1095 } 1096 1097 if ((do_zip_file || do_add_date || do_update_progress || do_broadcast) && !use_outfile) { 1098 usage(); 1099 exit(1); 1100 } 1101 1102 if (use_control_socket && !do_zip_file) { 1103 usage(); 1104 exit(1); 1105 } 1106 1107 if (do_update_progress && !do_broadcast) { 1108 usage(); 1109 exit(1); 1110 } 1111 1112 if (is_remote_mode && (do_update_progress || !do_broadcast || !do_zip_file || !do_add_date)) { 1113 usage(); 1114 exit(1); 1115 } 1116 1117 if (version != VERSION_DEFAULT) { 1118 usage(); 1119 exit(1); 1120 } 1121 1122 MYLOGI("bugreport format version: %s\n", version.c_str()); 1123 1124 do_early_screenshot = do_update_progress; 1125 1126 // If we are going to use a socket, do it as early as possible 1127 // to avoid timeouts from bugreport. 1128 if (use_socket) { 1129 redirect_to_socket(stdout, "dumpstate"); 1130 } 1131 1132 if (use_control_socket) { 1133 MYLOGD("Opening control socket\n"); 1134 control_socket_fd = open_socket("dumpstate"); 1135 } 1136 1137 /* full path of the temporary file containing the bugreport */ 1138 std::string tmp_path; 1139 1140 /* full path of the file containing the dumpstate logs*/ 1141 std::string log_path; 1142 1143 /* full path of the systrace file, when enabled */ 1144 std::string systrace_path; 1145 1146 /* full path of the temporary file containing the screenshot (when requested) */ 1147 std::string screenshot_path; 1148 1149 /* base name (without suffix or extensions) of the bugreport files */ 1150 std::string base_name; 1151 1152 /* pointer to the actual path, be it zip or text */ 1153 std::string path; 1154 1155 /* pointer to the zipped file */ 1156 std::unique_ptr<FILE, int(*)(FILE*)> zip_file(NULL, fclose); 1157 1158 /* redirect output if needed */ 1159 bool is_redirecting = !use_socket && use_outfile; 1160 1161 if (is_redirecting) { 1162 bugreport_dir = dirname(use_outfile); 1163 base_name = basename(use_outfile); 1164 if (do_add_date) { 1165 char date[80]; 1166 strftime(date, sizeof(date), "%Y-%m-%d-%H-%M-%S", localtime(&now)); 1167 suffix = date; 1168 } else { 1169 suffix = "undated"; 1170 } 1171 char build_id[PROPERTY_VALUE_MAX]; 1172 property_get("ro.build.id", build_id, "UNKNOWN_BUILD"); 1173 base_name = base_name + "-" + build_id; 1174 if (do_fb) { 1175 // TODO: if dumpstate was an object, the paths could be internal variables and then 1176 // we could have a function to calculate the derived values, such as: 1177 // screenshot_path = GetPath(".png"); 1178 screenshot_path = bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1179 } 1180 tmp_path = bugreport_dir + "/" + base_name + "-" + suffix + ".tmp"; 1181 log_path = bugreport_dir + "/dumpstate_log-" + suffix + "-" 1182 + std::to_string(getpid()) + ".txt"; 1183 1184 MYLOGD("Bugreport dir: %s\n" 1185 "Base name: %s\n" 1186 "Suffix: %s\n" 1187 "Log path: %s\n" 1188 "Temporary path: %s\n" 1189 "Screenshot path: %s\n", 1190 bugreport_dir.c_str(), base_name.c_str(), suffix.c_str(), 1191 log_path.c_str(), tmp_path.c_str(), screenshot_path.c_str()); 1192 1193 if (do_zip_file) { 1194 path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1195 MYLOGD("Creating initial .zip file (%s)\n", path.c_str()); 1196 create_parent_dirs(path.c_str()); 1197 zip_file.reset(fopen(path.c_str(), "wb")); 1198 if (!zip_file) { 1199 MYLOGE("fopen(%s, 'wb'): %s\n", path.c_str(), strerror(errno)); 1200 do_zip_file = 0; 1201 } else { 1202 zip_writer.reset(new ZipWriter(zip_file.get())); 1203 } 1204 add_text_zip_entry("version.txt", version); 1205 } 1206 1207 if (do_update_progress) { 1208 std::vector<std::string> am_args = { 1209 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1210 "--es", "android.intent.extra.NAME", suffix, 1211 "--ei", "android.intent.extra.ID", std::to_string(id), 1212 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1213 "--ei", "android.intent.extra.MAX", std::to_string(WEIGHT_TOTAL), 1214 }; 1215 send_broadcast("android.intent.action.BUGREPORT_STARTED", am_args); 1216 } 1217 } 1218 1219 /* read /proc/cmdline before dropping root */ 1220 FILE *cmdline = fopen("/proc/cmdline", "re"); 1221 if (cmdline) { 1222 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 1223 fclose(cmdline); 1224 } 1225 1226 /* open the vibrator before dropping root */ 1227 std::unique_ptr<FILE, int(*)(FILE*)> vibrator(NULL, fclose); 1228 if (do_vibrate) { 1229 vibrator.reset(fopen("/sys/class/timed_output/vibrator/enable", "we")); 1230 if (vibrator) { 1231 vibrate(vibrator.get(), 150); 1232 } 1233 } 1234 1235 if (do_fb && do_early_screenshot) { 1236 if (screenshot_path.empty()) { 1237 // should not have happened 1238 MYLOGE("INTERNAL ERROR: skipping early screenshot because path was not set\n"); 1239 } else { 1240 MYLOGI("taking early screenshot\n"); 1241 take_screenshot(screenshot_path); 1242 MYLOGI("wrote screenshot: %s\n", screenshot_path.c_str()); 1243 if (chown(screenshot_path.c_str(), AID_SHELL, AID_SHELL)) { 1244 MYLOGE("Unable to change ownership of screenshot file %s: %s\n", 1245 screenshot_path.c_str(), strerror(errno)); 1246 } 1247 } 1248 } 1249 1250 if (do_zip_file) { 1251 if (chown(path.c_str(), AID_SHELL, AID_SHELL)) { 1252 MYLOGE("Unable to change ownership of zip file %s: %s\n", path.c_str(), strerror(errno)); 1253 } 1254 } 1255 1256 if (is_redirecting) { 1257 redirect_to_file(stderr, const_cast<char*>(log_path.c_str())); 1258 if (chown(log_path.c_str(), AID_SHELL, AID_SHELL)) { 1259 MYLOGE("Unable to change ownership of dumpstate log file %s: %s\n", 1260 log_path.c_str(), strerror(errno)); 1261 } 1262 /* TODO: rather than generating a text file now and zipping it later, 1263 it would be more efficient to redirect stdout to the zip entry 1264 directly, but the libziparchive doesn't support that option yet. */ 1265 redirect_to_file(stdout, const_cast<char*>(tmp_path.c_str())); 1266 if (chown(tmp_path.c_str(), AID_SHELL, AID_SHELL)) { 1267 MYLOGE("Unable to change ownership of temporary bugreport file %s: %s\n", 1268 tmp_path.c_str(), strerror(errno)); 1269 } 1270 } 1271 // NOTE: there should be no stdout output until now, otherwise it would break the header. 1272 // In particular, DurationReport objects should be created passing 'title, NULL', so their 1273 // duration is logged into MYLOG instead. 1274 print_header(version); 1275 1276 // Dumps systrace right away, otherwise it will be filled with unnecessary events. 1277 dump_systrace(); 1278 1279 // Invoking the following dumpsys calls before dump_traces() to try and 1280 // keep the system stats as close to its initial state as possible. 1281 run_command_as_shell("DUMPSYS MEMINFO", 30, "dumpsys", "-t", "30", "meminfo", "-a", NULL); 1282 run_command_as_shell("DUMPSYS CPUINFO", 10, "dumpsys", "-t", "10", "cpuinfo", "-a", NULL); 1283 1284 /* collect stack traces from Dalvik and native processes (needs root) */ 1285 dump_traces_path = dump_traces(); 1286 1287 /* Run some operations that require root. */ 1288 get_tombstone_fds(tombstone_data); 1289 add_dir(RECOVERY_DIR, true); 1290 add_dir(RECOVERY_DATA_DIR, true); 1291 add_dir(LOGPERSIST_DATA_DIR, false); 1292 add_mountinfo(); 1293 dump_iptables(); 1294 1295 if (!drop_root_user()) { 1296 return -1; 1297 } 1298 1299 dumpstate(do_early_screenshot ? "": screenshot_path, version); 1300 1301 /* close output if needed */ 1302 if (is_redirecting) { 1303 fclose(stdout); 1304 } 1305 1306 /* rename or zip the (now complete) .tmp file to its final location */ 1307 if (use_outfile) { 1308 1309 /* check if user changed the suffix using system properties */ 1310 char key[PROPERTY_KEY_MAX]; 1311 char value[PROPERTY_VALUE_MAX]; 1312 snprintf(key, sizeof(key), "dumpstate.%d.name", getpid()); 1313 property_get(key, value, ""); 1314 bool change_suffix= false; 1315 if (value[0]) { 1316 /* must whitelist which characters are allowed, otherwise it could cross directories */ 1317 std::regex valid_regex("^[-_a-zA-Z0-9]+$"); 1318 if (std::regex_match(value, valid_regex)) { 1319 change_suffix = true; 1320 } else { 1321 MYLOGE("invalid suffix provided by user: %s\n", value); 1322 } 1323 } 1324 if (change_suffix) { 1325 MYLOGI("changing suffix from %s to %s\n", suffix.c_str(), value); 1326 suffix = value; 1327 if (!screenshot_path.empty()) { 1328 std::string new_screenshot_path = 1329 bugreport_dir + "/" + base_name + "-" + suffix + ".png"; 1330 if (rename(screenshot_path.c_str(), new_screenshot_path.c_str())) { 1331 MYLOGE("rename(%s, %s): %s\n", screenshot_path.c_str(), 1332 new_screenshot_path.c_str(), strerror(errno)); 1333 } else { 1334 screenshot_path = new_screenshot_path; 1335 } 1336 } 1337 } 1338 1339 bool do_text_file = true; 1340 if (do_zip_file) { 1341 std::string entry_name = base_name + "-" + suffix + ".txt"; 1342 MYLOGD("Adding main entry (%s) to .zip bugreport\n", entry_name.c_str()); 1343 if (!finish_zip_file(entry_name, tmp_path, now)) { 1344 MYLOGE("Failed to finish zip file; sending text bugreport instead\n"); 1345 do_text_file = true; 1346 } else { 1347 do_text_file = false; 1348 // Since zip file is already created, it needs to be renamed. 1349 std::string new_path = bugreport_dir + "/" + base_name + "-" + suffix + ".zip"; 1350 if (path != new_path) { 1351 MYLOGD("Renaming zip file from %s to %s\n", path.c_str(), new_path.c_str()); 1352 if (rename(path.c_str(), new_path.c_str())) { 1353 MYLOGE("rename(%s, %s): %s\n", path.c_str(), 1354 new_path.c_str(), strerror(errno)); 1355 } else { 1356 path = new_path; 1357 } 1358 } 1359 } 1360 } 1361 if (do_text_file) { 1362 path = bugreport_dir + "/" + base_name + "-" + suffix + ".txt"; 1363 MYLOGD("Generating .txt bugreport at %s from %s\n", path.c_str(), tmp_path.c_str()); 1364 if (rename(tmp_path.c_str(), path.c_str())) { 1365 MYLOGE("rename(%s, %s): %s\n", tmp_path.c_str(), path.c_str(), strerror(errno)); 1366 path.clear(); 1367 } 1368 } 1369 if (use_control_socket) { 1370 if (do_text_file) { 1371 dprintf(control_socket_fd, "FAIL:could not create zip file, check %s " 1372 "for more details\n", log_path.c_str()); 1373 } else { 1374 dprintf(control_socket_fd, "OK:%s\n", path.c_str()); 1375 } 1376 } 1377 } 1378 1379 /* vibrate a few but shortly times to let user know it's finished */ 1380 if (vibrator) { 1381 for (int i = 0; i < 3; i++) { 1382 vibrate(vibrator.get(), 75); 1383 usleep((75 + 50) * 1000); 1384 } 1385 } 1386 1387 /* tell activity manager we're done */ 1388 if (do_broadcast) { 1389 if (!path.empty()) { 1390 MYLOGI("Final bugreport path: %s\n", path.c_str()); 1391 std::vector<std::string> am_args = { 1392 "--receiver-permission", "android.permission.DUMP", "--receiver-foreground", 1393 "--ei", "android.intent.extra.ID", std::to_string(id), 1394 "--ei", "android.intent.extra.PID", std::to_string(getpid()), 1395 "--ei", "android.intent.extra.MAX", std::to_string(weight_total), 1396 "--es", "android.intent.extra.BUGREPORT", path, 1397 "--es", "android.intent.extra.DUMPSTATE_LOG", log_path 1398 }; 1399 if (do_fb) { 1400 am_args.push_back("--es"); 1401 am_args.push_back("android.intent.extra.SCREENSHOT"); 1402 am_args.push_back(screenshot_path); 1403 } 1404 if (is_remote_mode) { 1405 am_args.push_back("--es"); 1406 am_args.push_back("android.intent.extra.REMOTE_BUGREPORT_HASH"); 1407 am_args.push_back(SHA256_file_hash(path)); 1408 send_broadcast("android.intent.action.REMOTE_BUGREPORT_FINISHED", am_args); 1409 } else { 1410 send_broadcast("android.intent.action.BUGREPORT_FINISHED", am_args); 1411 } 1412 } else { 1413 MYLOGE("Skipping finished broadcast because bugreport could not be generated\n"); 1414 } 1415 } 1416 1417 MYLOGD("Final progress: %d/%d (originally %d)\n", progress, weight_total, WEIGHT_TOTAL); 1418 MYLOGI("done\n"); 1419 1420 if (is_redirecting) { 1421 fclose(stderr); 1422 } 1423 1424 if (use_control_socket && control_socket_fd >= 0) { 1425 MYLOGD("Closing control socket\n"); 1426 close(control_socket_fd); 1427 } 1428 1429 return 0; 1430} 1431