1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #define _LARGEFILE64_SOURCE 30 31 #include <ctype.h> 32 #include <errno.h> 33 #include <fcntl.h> 34 #include <getopt.h> 35 #include <inttypes.h> 36 #include <limits.h> 37 #include <stdint.h> 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <string.h> 41 #include <sys/stat.h> 42 #include <sys/time.h> 43 #include <sys/types.h> 44 #include <unistd.h> 45 46 #include <chrono> 47 #include <functional> 48 #include <thread> 49 #include <utility> 50 #include <vector> 51 52 #include <android-base/file.h> 53 #include <android-base/macros.h> 54 #include <android-base/parseint.h> 55 #include <android-base/parsenetaddress.h> 56 #include <android-base/stringprintf.h> 57 #include <android-base/strings.h> 58 #include <sparse/sparse.h> 59 #include <ziparchive/zip_archive.h> 60 61 #include "bootimg_utils.h" 62 #include "diagnose_usb.h" 63 #include "fastboot.h" 64 #include "fs.h" 65 #include "tcp.h" 66 #include "transport.h" 67 #include "udp.h" 68 #include "usb.h" 69 70 #ifndef O_BINARY 71 #define O_BINARY 0 72 #endif 73 74 char cur_product[FB_RESPONSE_SZ + 1]; 75 76 static const char* serial = nullptr; 77 static const char* product = nullptr; 78 static const char* cmdline = nullptr; 79 static unsigned short vendor_id = 0; 80 static int long_listing = 0; 81 static int64_t sparse_limit = -1; 82 static int64_t target_sparse_limit = -1; 83 84 static unsigned page_size = 2048; 85 static unsigned base_addr = 0x10000000; 86 static unsigned kernel_offset = 0x00008000; 87 static unsigned ramdisk_offset = 0x01000000; 88 static unsigned second_offset = 0x00f00000; 89 static unsigned tags_offset = 0x00000100; 90 91 static const std::string convert_fbe_marker_filename("convert_fbe"); 92 93 enum fb_buffer_type { 94 FB_BUFFER, 95 FB_BUFFER_SPARSE, 96 }; 97 98 struct fastboot_buffer { 99 enum fb_buffer_type type; 100 void* data; 101 int64_t sz; 102 }; 103 104 static struct { 105 char img_name[17]; 106 char sig_name[17]; 107 char part_name[9]; 108 bool is_optional; 109 bool is_secondary; 110 } images[] = { 111 {"boot.img", "boot.sig", "boot", false, false}, 112 {"boot_other.img", "boot.sig", "boot", true, true}, 113 {"recovery.img", "recovery.sig", "recovery", true, false}, 114 {"system.img", "system.sig", "system", false, false}, 115 {"system_other.img", "system.sig", "system", true, true}, 116 {"vendor.img", "vendor.sig", "vendor", true, false}, 117 {"vendor_other.img", "vendor.sig", "vendor", true, true}, 118 }; 119 120 static std::string find_item_given_name(const char* img_name, const char* product) { 121 if(product) { 122 std::string path = android::base::GetExecutablePath(); 123 path.erase(path.find_last_of('/')); 124 return android::base::StringPrintf("%s/../../../target/product/%s/%s", 125 path.c_str(), product, img_name); 126 } 127 128 char *dir = getenv("ANDROID_PRODUCT_OUT"); 129 if (dir == nullptr || dir[0] == '\0') { 130 die("neither -p product specified nor ANDROID_PRODUCT_OUT set"); 131 } 132 133 return android::base::StringPrintf("%s/%s", dir, img_name); 134 } 135 136 std::string find_item(const char* item, const char* product) { 137 const char *fn; 138 139 if (!strcmp(item,"boot")) { 140 fn = "boot.img"; 141 } else if(!strcmp(item,"recovery")) { 142 fn = "recovery.img"; 143 } else if(!strcmp(item,"system")) { 144 fn = "system.img"; 145 } else if(!strcmp(item,"vendor")) { 146 fn = "vendor.img"; 147 } else if(!strcmp(item,"userdata")) { 148 fn = "userdata.img"; 149 } else if(!strcmp(item,"cache")) { 150 fn = "cache.img"; 151 } else if(!strcmp(item,"info")) { 152 fn = "android-info.txt"; 153 } else { 154 fprintf(stderr,"unknown partition '%s'\n", item); 155 return ""; 156 } 157 158 return find_item_given_name(fn, product); 159 } 160 161 static int64_t get_file_size(int fd) { 162 struct stat sb; 163 return fstat(fd, &sb) == -1 ? -1 : sb.st_size; 164 } 165 166 static void* load_fd(int fd, int64_t* sz) { 167 int errno_tmp; 168 char* data = nullptr; 169 170 *sz = get_file_size(fd); 171 if (*sz < 0) { 172 goto oops; 173 } 174 175 data = (char*) malloc(*sz); 176 if (data == nullptr) goto oops; 177 178 if(read(fd, data, *sz) != *sz) goto oops; 179 close(fd); 180 181 return data; 182 183 oops: 184 errno_tmp = errno; 185 close(fd); 186 if(data != 0) free(data); 187 errno = errno_tmp; 188 return 0; 189 } 190 191 static void* load_file(const std::string& path, int64_t* sz) { 192 int fd = open(path.c_str(), O_RDONLY | O_BINARY); 193 if (fd == -1) return nullptr; 194 return load_fd(fd, sz); 195 } 196 197 static int match_fastboot_with_serial(usb_ifc_info* info, const char* local_serial) { 198 // Require a matching vendor id if the user specified one with -i. 199 if (vendor_id != 0 && info->dev_vendor != vendor_id) { 200 return -1; 201 } 202 203 if (info->ifc_class != 0xff || info->ifc_subclass != 0x42 || info->ifc_protocol != 0x03) { 204 return -1; 205 } 206 207 // require matching serial number or device path if requested 208 // at the command line with the -s option. 209 if (local_serial && (strcmp(local_serial, info->serial_number) != 0 && 210 strcmp(local_serial, info->device_path) != 0)) return -1; 211 return 0; 212 } 213 214 static int match_fastboot(usb_ifc_info* info) { 215 return match_fastboot_with_serial(info, serial); 216 } 217 218 static int list_devices_callback(usb_ifc_info* info) { 219 if (match_fastboot_with_serial(info, nullptr) == 0) { 220 std::string serial = info->serial_number; 221 if (!info->writable) { 222 serial = UsbNoPermissionsShortHelpText(); 223 } 224 if (!serial[0]) { 225 serial = "????????????"; 226 } 227 // output compatible with "adb devices" 228 if (!long_listing) { 229 printf("%s\tfastboot", serial.c_str()); 230 } else { 231 printf("%-22s fastboot", serial.c_str()); 232 if (strlen(info->device_path) > 0) printf(" %s", info->device_path); 233 } 234 putchar('\n'); 235 } 236 237 return -1; 238 } 239 240 // Opens a new Transport connected to a device. If |serial| is non-null it will be used to identify 241 // a specific device, otherwise the first USB device found will be used. 242 // 243 // If |serial| is non-null but invalid, this prints an error message to stderr and returns nullptr. 244 // Otherwise it blocks until the target is available. 245 // 246 // The returned Transport is a singleton, so multiple calls to this function will return the same 247 // object, and the caller should not attempt to delete the returned Transport. 248 static Transport* open_device() { 249 static Transport* transport = nullptr; 250 bool announce = true; 251 252 if (transport != nullptr) { 253 return transport; 254 } 255 256 Socket::Protocol protocol = Socket::Protocol::kTcp; 257 std::string host; 258 int port = 0; 259 if (serial != nullptr) { 260 const char* net_address = nullptr; 261 262 if (android::base::StartsWith(serial, "tcp:")) { 263 protocol = Socket::Protocol::kTcp; 264 port = tcp::kDefaultPort; 265 net_address = serial + strlen("tcp:"); 266 } else if (android::base::StartsWith(serial, "udp:")) { 267 protocol = Socket::Protocol::kUdp; 268 port = udp::kDefaultPort; 269 net_address = serial + strlen("udp:"); 270 } 271 272 if (net_address != nullptr) { 273 std::string error; 274 if (!android::base::ParseNetAddress(net_address, &host, &port, nullptr, &error)) { 275 fprintf(stderr, "error: Invalid network address '%s': %s\n", net_address, 276 error.c_str()); 277 return nullptr; 278 } 279 } 280 } 281 282 while (true) { 283 if (!host.empty()) { 284 std::string error; 285 if (protocol == Socket::Protocol::kTcp) { 286 transport = tcp::Connect(host, port, &error).release(); 287 } else if (protocol == Socket::Protocol::kUdp) { 288 transport = udp::Connect(host, port, &error).release(); 289 } 290 291 if (transport == nullptr && announce) { 292 fprintf(stderr, "error: %s\n", error.c_str()); 293 } 294 } else { 295 transport = usb_open(match_fastboot); 296 } 297 298 if (transport != nullptr) { 299 return transport; 300 } 301 302 if (announce) { 303 announce = false; 304 fprintf(stderr, "< waiting for %s >\n", serial ? serial : "any device"); 305 } 306 std::this_thread::sleep_for(std::chrono::milliseconds(1)); 307 } 308 } 309 310 static void list_devices() { 311 // We don't actually open a USB device here, 312 // just getting our callback called so we can 313 // list all the connected devices. 314 usb_open(list_devices_callback); 315 } 316 317 static void usage() { 318 fprintf(stderr, 319 /* 1234567890123456789012345678901234567890123456789012345678901234567890123456 */ 320 "usage: fastboot [ <option> ] <command>\n" 321 "\n" 322 "commands:\n" 323 " update <filename> Reflash device from update.zip.\n" 324 " Sets the flashed slot as active.\n" 325 " flashall Flash boot, system, vendor, and --\n" 326 " if found -- recovery. If the device\n" 327 " supports slots, the slot that has\n" 328 " been flashed to is set as active.\n" 329 " Secondary images may be flashed to\n" 330 " an inactive slot.\n" 331 " flash <partition> [ <filename> ] Write a file to a flash partition.\n" 332 " flashing lock Locks the device. Prevents flashing.\n" 333 " flashing unlock Unlocks the device. Allows flashing\n" 334 " any partition except\n" 335 " bootloader-related partitions.\n" 336 " flashing lock_critical Prevents flashing bootloader-related\n" 337 " partitions.\n" 338 " flashing unlock_critical Enables flashing bootloader-related\n" 339 " partitions.\n" 340 " flashing get_unlock_ability Queries bootloader to see if the\n" 341 " device is unlocked.\n" 342 " flashing get_unlock_bootloader_nonce Queries the bootloader to get the\n" 343 " unlock nonce.\n" 344 " flashing unlock_bootloader <request> Issue unlock bootloader using request.\n" 345 " flashing lock_bootloader Locks the bootloader to prevent\n" 346 " bootloader version rollback.\n" 347 " erase <partition> Erase a flash partition.\n" 348 " format[:[<fs type>][:[<size>]] <partition>\n" 349 " Format a flash partition. Can\n" 350 " override the fs type and/or size\n" 351 " the bootloader reports.\n" 352 " getvar <variable> Display a bootloader variable.\n" 353 " set_active <slot> Sets the active slot. If slots are\n" 354 " not supported, this does nothing.\n" 355 " boot <kernel> [ <ramdisk> [ <second> ] ] Download and boot kernel.\n" 356 " flash:raw boot <kernel> [ <ramdisk> [ <second> ] ]\n" 357 " Create bootimage and flash it.\n" 358 " devices [-l] List all connected devices [with\n" 359 " device paths].\n" 360 " continue Continue with autoboot.\n" 361 " reboot [bootloader|emergency] Reboot device [into bootloader or emergency mode].\n" 362 " reboot-bootloader Reboot device into bootloader.\n" 363 " help Show this help message.\n" 364 "\n" 365 "options:\n" 366 " -w Erase userdata and cache (and format\n" 367 " if supported by partition type).\n" 368 " -u Do not erase partition before\n" 369 " formatting.\n" 370 " -s <specific device> Specify a device. For USB, provide either\n" 371 " a serial number or path to device port.\n" 372 " For ethernet, provide an address in the\n" 373 " form <protocol>:<hostname>[:port] where\n" 374 " <protocol> is either tcp or udp.\n" 375 " -p <product> Specify product name.\n" 376 " -c <cmdline> Override kernel commandline.\n" 377 " -i <vendor id> Specify a custom USB vendor id.\n" 378 " -b, --base <base_addr> Specify a custom kernel base\n" 379 " address (default: 0x10000000).\n" 380 " --kernel-offset Specify a custom kernel offset.\n" 381 " (default: 0x00008000)\n" 382 " --ramdisk-offset Specify a custom ramdisk offset.\n" 383 " (default: 0x01000000)\n" 384 " --tags-offset Specify a custom tags offset.\n" 385 " (default: 0x00000100)\n" 386 " -n, --page-size <page size> Specify the nand page size\n" 387 " (default: 2048).\n" 388 " -S <size>[K|M|G] Automatically sparse files greater\n" 389 " than 'size'. 0 to disable.\n" 390 " --slot <slot> Specify slot name to be used if the\n" 391 " device supports slots. All operations\n" 392 " on partitions that support slots will\n" 393 " be done on the slot specified.\n" 394 " 'all' can be given to refer to all slots.\n" 395 " 'other' can be given to refer to a\n" 396 " non-current slot. If this flag is not\n" 397 " used, slotted partitions will default\n" 398 " to the current active slot.\n" 399 " -a, --set-active[=<slot>] Sets the active slot. If no slot is\n" 400 " provided, this will default to the value\n" 401 " given by --slot. If slots are not\n" 402 " supported, this does nothing. This will\n" 403 " run after all non-reboot commands.\n" 404 " --skip-secondary Will not flash secondary slots when\n" 405 " performing a flashall or update. This\n" 406 " will preserve data on other slots.\n" 407 " --skip-reboot Will not reboot the device when\n" 408 " performing commands that normally\n" 409 " trigger a reboot.\n" 410 #if !defined(_WIN32) 411 " --wipe-and-use-fbe On devices which support it,\n" 412 " erase userdata and cache, and\n" 413 " enable file-based encryption\n" 414 #endif 415 " --unbuffered Do not buffer input or output.\n" 416 " --version Display version.\n" 417 " -h, --help show this message.\n" 418 ); 419 } 420 421 static void* load_bootable_image(const char* kernel, const char* ramdisk, 422 const char* secondstage, int64_t* sz, 423 const char* cmdline) { 424 if (kernel == nullptr) { 425 fprintf(stderr, "no image specified\n"); 426 return 0; 427 } 428 429 int64_t ksize; 430 void* kdata = load_file(kernel, &ksize); 431 if (kdata == nullptr) { 432 fprintf(stderr, "cannot load '%s': %s\n", kernel, strerror(errno)); 433 return 0; 434 } 435 436 // Is this actually a boot image? 437 if(!memcmp(kdata, BOOT_MAGIC, BOOT_MAGIC_SIZE)) { 438 if (cmdline) bootimg_set_cmdline((boot_img_hdr*) kdata, cmdline); 439 440 if (ramdisk) { 441 fprintf(stderr, "cannot boot a boot.img *and* ramdisk\n"); 442 return 0; 443 } 444 445 *sz = ksize; 446 return kdata; 447 } 448 449 void* rdata = nullptr; 450 int64_t rsize = 0; 451 if (ramdisk) { 452 rdata = load_file(ramdisk, &rsize); 453 if (rdata == nullptr) { 454 fprintf(stderr,"cannot load '%s': %s\n", ramdisk, strerror(errno)); 455 return 0; 456 } 457 } 458 459 void* sdata = nullptr; 460 int64_t ssize = 0; 461 if (secondstage) { 462 sdata = load_file(secondstage, &ssize); 463 if (sdata == nullptr) { 464 fprintf(stderr,"cannot load '%s': %s\n", secondstage, strerror(errno)); 465 return 0; 466 } 467 } 468 469 fprintf(stderr,"creating boot image...\n"); 470 int64_t bsize = 0; 471 void* bdata = mkbootimg(kdata, ksize, kernel_offset, 472 rdata, rsize, ramdisk_offset, 473 sdata, ssize, second_offset, 474 page_size, base_addr, tags_offset, &bsize); 475 if (bdata == nullptr) { 476 fprintf(stderr,"failed to create boot.img\n"); 477 return 0; 478 } 479 if (cmdline) bootimg_set_cmdline((boot_img_hdr*) bdata, cmdline); 480 fprintf(stderr, "creating boot image - %" PRId64 " bytes\n", bsize); 481 *sz = bsize; 482 483 return bdata; 484 } 485 486 static void* unzip_file(ZipArchiveHandle zip, const char* entry_name, int64_t* sz) 487 { 488 ZipString zip_entry_name(entry_name); 489 ZipEntry zip_entry; 490 if (FindEntry(zip, zip_entry_name, &zip_entry) != 0) { 491 fprintf(stderr, "archive does not contain '%s'\n", entry_name); 492 return 0; 493 } 494 495 *sz = zip_entry.uncompressed_length; 496 497 uint8_t* data = reinterpret_cast<uint8_t*>(malloc(zip_entry.uncompressed_length)); 498 if (data == nullptr) { 499 fprintf(stderr, "failed to allocate %" PRId64 " bytes for '%s'\n", *sz, entry_name); 500 return 0; 501 } 502 503 int error = ExtractToMemory(zip, &zip_entry, data, zip_entry.uncompressed_length); 504 if (error != 0) { 505 fprintf(stderr, "failed to extract '%s': %s\n", entry_name, ErrorCodeString(error)); 506 free(data); 507 return 0; 508 } 509 510 return data; 511 } 512 513 #if defined(_WIN32) 514 515 // TODO: move this to somewhere it can be shared. 516 517 #include <windows.h> 518 519 // Windows' tmpfile(3) requires administrator rights because 520 // it creates temporary files in the root directory. 521 static FILE* win32_tmpfile() { 522 char temp_path[PATH_MAX]; 523 DWORD nchars = GetTempPath(sizeof(temp_path), temp_path); 524 if (nchars == 0 || nchars >= sizeof(temp_path)) { 525 fprintf(stderr, "GetTempPath failed, error %ld\n", GetLastError()); 526 return nullptr; 527 } 528 529 char filename[PATH_MAX]; 530 if (GetTempFileName(temp_path, "fastboot", 0, filename) == 0) { 531 fprintf(stderr, "GetTempFileName failed, error %ld\n", GetLastError()); 532 return nullptr; 533 } 534 535 return fopen(filename, "w+bTD"); 536 } 537 538 #define tmpfile win32_tmpfile 539 540 static std::string make_temporary_directory() { 541 fprintf(stderr, "make_temporary_directory not supported under Windows, sorry!"); 542 return ""; 543 } 544 545 #else 546 547 static std::string make_temporary_directory() { 548 const char *tmpdir = getenv("TMPDIR"); 549 if (tmpdir == nullptr) { 550 tmpdir = P_tmpdir; 551 } 552 std::string result = std::string(tmpdir) + "/fastboot_userdata_XXXXXX"; 553 if (mkdtemp(&result[0]) == NULL) { 554 fprintf(stderr, "Unable to create temporary directory: %s\n", 555 strerror(errno)); 556 return ""; 557 } 558 return result; 559 } 560 561 #endif 562 563 static std::string create_fbemarker_tmpdir() { 564 std::string dir = make_temporary_directory(); 565 if (dir.empty()) { 566 fprintf(stderr, "Unable to create local temp directory for FBE marker\n"); 567 return ""; 568 } 569 std::string marker_file = dir + "/" + convert_fbe_marker_filename; 570 int fd = open(marker_file.c_str(), O_CREAT | O_WRONLY | O_CLOEXEC, 0666); 571 if (fd == -1) { 572 fprintf(stderr, "Unable to create FBE marker file %s locally: %d, %s\n", 573 marker_file.c_str(), errno, strerror(errno)); 574 return ""; 575 } 576 close(fd); 577 return dir; 578 } 579 580 static void delete_fbemarker_tmpdir(const std::string& dir) { 581 std::string marker_file = dir + "/" + convert_fbe_marker_filename; 582 if (unlink(marker_file.c_str()) == -1) { 583 fprintf(stderr, "Unable to delete FBE marker file %s locally: %d, %s\n", 584 marker_file.c_str(), errno, strerror(errno)); 585 return; 586 } 587 if (rmdir(dir.c_str()) == -1) { 588 fprintf(stderr, "Unable to delete FBE marker directory %s locally: %d, %s\n", 589 dir.c_str(), errno, strerror(errno)); 590 return; 591 } 592 } 593 594 static int unzip_to_file(ZipArchiveHandle zip, char* entry_name) { 595 FILE* fp = tmpfile(); 596 if (fp == nullptr) { 597 fprintf(stderr, "failed to create temporary file for '%s': %s\n", 598 entry_name, strerror(errno)); 599 return -1; 600 } 601 602 ZipString zip_entry_name(entry_name); 603 ZipEntry zip_entry; 604 if (FindEntry(zip, zip_entry_name, &zip_entry) != 0) { 605 fprintf(stderr, "archive does not contain '%s'\n", entry_name); 606 fclose(fp); 607 return -1; 608 } 609 610 int fd = fileno(fp); 611 int error = ExtractEntryToFile(zip, &zip_entry, fd); 612 if (error != 0) { 613 fprintf(stderr, "failed to extract '%s': %s\n", entry_name, ErrorCodeString(error)); 614 fclose(fp); 615 return -1; 616 } 617 618 lseek(fd, 0, SEEK_SET); 619 // TODO: We're leaking 'fp' here. 620 return fd; 621 } 622 623 static char *strip(char *s) 624 { 625 int n; 626 while(*s && isspace(*s)) s++; 627 n = strlen(s); 628 while(n-- > 0) { 629 if(!isspace(s[n])) break; 630 s[n] = 0; 631 } 632 return s; 633 } 634 635 #define MAX_OPTIONS 32 636 static int setup_requirement_line(char *name) 637 { 638 char *val[MAX_OPTIONS]; 639 char *prod = nullptr; 640 unsigned n, count; 641 char *x; 642 int invert = 0; 643 644 if (!strncmp(name, "reject ", 7)) { 645 name += 7; 646 invert = 1; 647 } else if (!strncmp(name, "require ", 8)) { 648 name += 8; 649 invert = 0; 650 } else if (!strncmp(name, "require-for-product:", 20)) { 651 // Get the product and point name past it 652 prod = name + 20; 653 name = strchr(name, ' '); 654 if (!name) return -1; 655 *name = 0; 656 name += 1; 657 invert = 0; 658 } 659 660 x = strchr(name, '='); 661 if (x == 0) return 0; 662 *x = 0; 663 val[0] = x + 1; 664 665 for(count = 1; count < MAX_OPTIONS; count++) { 666 x = strchr(val[count - 1],'|'); 667 if (x == 0) break; 668 *x = 0; 669 val[count] = x + 1; 670 } 671 672 name = strip(name); 673 for(n = 0; n < count; n++) val[n] = strip(val[n]); 674 675 name = strip(name); 676 if (name == 0) return -1; 677 678 const char* var = name; 679 // Work around an unfortunate name mismatch. 680 if (!strcmp(name,"board")) var = "product"; 681 682 const char** out = reinterpret_cast<const char**>(malloc(sizeof(char*) * count)); 683 if (out == 0) return -1; 684 685 for(n = 0; n < count; n++) { 686 out[n] = strdup(strip(val[n])); 687 if (out[n] == 0) { 688 for(size_t i = 0; i < n; ++i) { 689 free((char*) out[i]); 690 } 691 free(out); 692 return -1; 693 } 694 } 695 696 fb_queue_require(prod, var, invert, n, out); 697 return 0; 698 } 699 700 static void setup_requirements(char* data, int64_t sz) { 701 char* s = data; 702 while (sz-- > 0) { 703 if (*s == '\n') { 704 *s++ = 0; 705 if (setup_requirement_line(data)) { 706 die("out of memory"); 707 } 708 data = s; 709 } else { 710 s++; 711 } 712 } 713 } 714 715 static void queue_info_dump() { 716 fb_queue_notice("--------------------------------------------"); 717 fb_queue_display("version-bootloader", "Bootloader Version..."); 718 fb_queue_display("version-baseband", "Baseband Version....."); 719 fb_queue_display("serialno", "Serial Number........"); 720 fb_queue_notice("--------------------------------------------"); 721 } 722 723 static struct sparse_file **load_sparse_files(int fd, int max_size) 724 { 725 struct sparse_file* s = sparse_file_import_auto(fd, false, true); 726 if (!s) { 727 die("cannot sparse read file\n"); 728 } 729 730 int files = sparse_file_resparse(s, max_size, nullptr, 0); 731 if (files < 0) { 732 die("Failed to resparse\n"); 733 } 734 735 sparse_file** out_s = reinterpret_cast<sparse_file**>(calloc(sizeof(struct sparse_file *), files + 1)); 736 if (!out_s) { 737 die("Failed to allocate sparse file array\n"); 738 } 739 740 files = sparse_file_resparse(s, max_size, out_s, files); 741 if (files < 0) { 742 die("Failed to resparse\n"); 743 } 744 745 return out_s; 746 } 747 748 static int64_t get_target_sparse_limit(Transport* transport) { 749 std::string max_download_size; 750 if (!fb_getvar(transport, "max-download-size", &max_download_size) || 751 max_download_size.empty()) { 752 fprintf(stderr, "target didn't report max-download-size\n"); 753 return 0; 754 } 755 756 // Some bootloaders (angler, for example) send spurious whitespace too. 757 max_download_size = android::base::Trim(max_download_size); 758 759 uint64_t limit; 760 if (!android::base::ParseUint(max_download_size, &limit)) { 761 fprintf(stderr, "couldn't parse max-download-size '%s'\n", max_download_size.c_str()); 762 return 0; 763 } 764 if (limit > 0) { 765 fprintf(stderr, "target reported max download size of %" PRId64 " bytes\n", limit); 766 } 767 return limit; 768 } 769 770 static int64_t get_sparse_limit(Transport* transport, int64_t size) { 771 int64_t limit; 772 773 if (sparse_limit == 0) { 774 return 0; 775 } else if (sparse_limit > 0) { 776 limit = sparse_limit; 777 } else { 778 if (target_sparse_limit == -1) { 779 target_sparse_limit = get_target_sparse_limit(transport); 780 } 781 if (target_sparse_limit > 0) { 782 limit = target_sparse_limit; 783 } else { 784 return 0; 785 } 786 } 787 788 if (size > limit) { 789 return limit; 790 } 791 792 return 0; 793 } 794 795 // Until we get lazy inode table init working in make_ext4fs, we need to 796 // erase partitions of type ext4 before flashing a filesystem so no stale 797 // inodes are left lying around. Otherwise, e2fsck gets very upset. 798 static bool needs_erase(Transport* transport, const char* partition) { 799 std::string partition_type; 800 if (!fb_getvar(transport, std::string("partition-type:") + partition, &partition_type)) { 801 return false; 802 } 803 return partition_type == "ext4"; 804 } 805 806 static bool load_buf_fd(Transport* transport, int fd, struct fastboot_buffer* buf) { 807 int64_t sz = get_file_size(fd); 808 if (sz == -1) { 809 return false; 810 } 811 812 lseek64(fd, 0, SEEK_SET); 813 int64_t limit = get_sparse_limit(transport, sz); 814 if (limit) { 815 sparse_file** s = load_sparse_files(fd, limit); 816 if (s == nullptr) { 817 return false; 818 } 819 buf->type = FB_BUFFER_SPARSE; 820 buf->data = s; 821 } else { 822 void* data = load_fd(fd, &sz); 823 if (data == nullptr) return -1; 824 buf->type = FB_BUFFER; 825 buf->data = data; 826 buf->sz = sz; 827 } 828 829 return true; 830 } 831 832 static bool load_buf(Transport* transport, const char* fname, struct fastboot_buffer* buf) { 833 int fd = open(fname, O_RDONLY | O_BINARY); 834 if (fd == -1) { 835 return false; 836 } 837 return load_buf_fd(transport, fd, buf); 838 } 839 840 static void flash_buf(const char *pname, struct fastboot_buffer *buf) 841 { 842 sparse_file** s; 843 844 switch (buf->type) { 845 case FB_BUFFER_SPARSE: { 846 std::vector<std::pair<sparse_file*, int64_t>> sparse_files; 847 s = reinterpret_cast<sparse_file**>(buf->data); 848 while (*s) { 849 int64_t sz = sparse_file_len(*s, true, false); 850 sparse_files.emplace_back(*s, sz); 851 ++s; 852 } 853 854 for (size_t i = 0; i < sparse_files.size(); ++i) { 855 const auto& pair = sparse_files[i]; 856 fb_queue_flash_sparse(pname, pair.first, pair.second, i + 1, sparse_files.size()); 857 } 858 break; 859 } 860 861 case FB_BUFFER: 862 fb_queue_flash(pname, buf->data, buf->sz); 863 break; 864 default: 865 die("unknown buffer type: %d", buf->type); 866 } 867 } 868 869 static std::string get_current_slot(Transport* transport) 870 { 871 std::string current_slot; 872 if (fb_getvar(transport, "current-slot", ¤t_slot)) { 873 if (current_slot == "_a") return "a"; // Legacy support 874 if (current_slot == "_b") return "b"; // Legacy support 875 return current_slot; 876 } 877 return ""; 878 } 879 880 // Legacy support 881 static std::vector<std::string> get_suffixes_obsolete(Transport* transport) { 882 std::vector<std::string> suffixes; 883 std::string suffix_list; 884 if (!fb_getvar(transport, "slot-suffixes", &suffix_list)) { 885 return suffixes; 886 } 887 suffixes = android::base::Split(suffix_list, ","); 888 // Unfortunately some devices will return an error message in the 889 // guise of a valid value. If we only see only one suffix, it's probably 890 // not real. 891 if (suffixes.size() == 1) { 892 suffixes.clear(); 893 } 894 return suffixes; 895 } 896 897 // Legacy support 898 static bool supports_AB_obsolete(Transport* transport) { 899 return !get_suffixes_obsolete(transport).empty(); 900 } 901 902 static int get_slot_count(Transport* transport) { 903 std::string var; 904 int count; 905 if (!fb_getvar(transport, "slot-count", &var)) { 906 if (supports_AB_obsolete(transport)) return 2; // Legacy support 907 } 908 if (!android::base::ParseInt(var, &count)) return 0; 909 return count; 910 } 911 912 static bool supports_AB(Transport* transport) { 913 return get_slot_count(transport) >= 2; 914 } 915 916 // Given a current slot, this returns what the 'other' slot is. 917 static std::string get_other_slot(const std::string& current_slot, int count) { 918 if (count == 0) return ""; 919 920 char next = (current_slot[0] - 'a' + 1)%count + 'a'; 921 return std::string(1, next); 922 } 923 924 static std::string get_other_slot(Transport* transport, const std::string& current_slot) { 925 return get_other_slot(current_slot, get_slot_count(transport)); 926 } 927 928 static std::string get_other_slot(Transport* transport, int count) { 929 return get_other_slot(get_current_slot(transport), count); 930 } 931 932 static std::string get_other_slot(Transport* transport) { 933 return get_other_slot(get_current_slot(transport), get_slot_count(transport)); 934 } 935 936 static std::string verify_slot(Transport* transport, const std::string& slot_name, bool allow_all) { 937 std::string slot = slot_name; 938 if (slot == "_a") slot = "a"; // Legacy support 939 if (slot == "_b") slot = "b"; // Legacy support 940 if (slot == "all") { 941 if (allow_all) { 942 return "all"; 943 } else { 944 int count = get_slot_count(transport); 945 if (count > 0) { 946 return "a"; 947 } else { 948 die("No known slots."); 949 } 950 } 951 } 952 953 int count = get_slot_count(transport); 954 if (count == 0) die("Device does not support slots.\n"); 955 956 if (slot == "other") { 957 std::string other = get_other_slot(transport, count); 958 if (other == "") { 959 die("No known slots."); 960 } 961 return other; 962 } 963 964 if (slot.size() == 1 && (slot[0]-'a' >= 0 && slot[0]-'a' < count)) return slot; 965 966 fprintf(stderr, "Slot %s does not exist. supported slots are:\n", slot.c_str()); 967 for (int i=0; i<count; i++) { 968 fprintf(stderr, "%c\n", (char)(i + 'a')); 969 } 970 971 exit(1); 972 } 973 974 static std::string verify_slot(Transport* transport, const std::string& slot) { 975 return verify_slot(transport, slot, true); 976 } 977 978 static void do_for_partition(Transport* transport, const std::string& part, const std::string& slot, 979 const std::function<void(const std::string&)>& func, bool force_slot) { 980 std::string has_slot; 981 std::string current_slot; 982 983 if (!fb_getvar(transport, "has-slot:" + part, &has_slot)) { 984 /* If has-slot is not supported, the answer is no. */ 985 has_slot = "no"; 986 } 987 if (has_slot == "yes") { 988 if (slot == "") { 989 current_slot = get_current_slot(transport); 990 if (current_slot == "") { 991 die("Failed to identify current slot.\n"); 992 } 993 func(part + "_" + current_slot); 994 } else { 995 func(part + '_' + slot); 996 } 997 } else { 998 if (force_slot && slot != "") { 999 fprintf(stderr, "Warning: %s does not support slots, and slot %s was requested.\n", 1000 part.c_str(), slot.c_str()); 1001 } 1002 func(part); 1003 } 1004 } 1005 1006 /* This function will find the real partition name given a base name, and a slot. If slot is NULL or 1007 * empty, it will use the current slot. If slot is "all", it will return a list of all possible 1008 * partition names. If force_slot is true, it will fail if a slot is specified, and the given 1009 * partition does not support slots. 1010 */ 1011 static void do_for_partitions(Transport* transport, const std::string& part, const std::string& slot, 1012 const std::function<void(const std::string&)>& func, bool force_slot) { 1013 std::string has_slot; 1014 1015 if (slot == "all") { 1016 if (!fb_getvar(transport, "has-slot:" + part, &has_slot)) { 1017 die("Could not check if partition %s has slot.", part.c_str()); 1018 } 1019 if (has_slot == "yes") { 1020 for (int i=0; i < get_slot_count(transport); i++) { 1021 do_for_partition(transport, part, std::string(1, (char)(i + 'a')), func, force_slot); 1022 } 1023 } else { 1024 do_for_partition(transport, part, "", func, force_slot); 1025 } 1026 } else { 1027 do_for_partition(transport, part, slot, func, force_slot); 1028 } 1029 } 1030 1031 static void do_flash(Transport* transport, const char* pname, const char* fname) { 1032 struct fastboot_buffer buf; 1033 1034 if (!load_buf(transport, fname, &buf)) { 1035 die("cannot load '%s': %s", fname, strerror(errno)); 1036 } 1037 flash_buf(pname, &buf); 1038 } 1039 1040 static void do_update_signature(ZipArchiveHandle zip, char* fn) { 1041 int64_t sz; 1042 void* data = unzip_file(zip, fn, &sz); 1043 if (data == nullptr) return; 1044 fb_queue_download("signature", data, sz); 1045 fb_queue_command("signature", "installing signature"); 1046 } 1047 1048 // Sets slot_override as the active slot. If slot_override is blank, 1049 // set current slot as active instead. This clears slot-unbootable. 1050 static void set_active(Transport* transport, const std::string& slot_override) { 1051 std::string separator = ""; 1052 if (!supports_AB(transport)) { 1053 if (supports_AB_obsolete(transport)) { 1054 separator = "_"; // Legacy support 1055 } else { 1056 return; 1057 } 1058 } 1059 if (slot_override != "") { 1060 fb_set_active((separator + slot_override).c_str()); 1061 } else { 1062 std::string current_slot = get_current_slot(transport); 1063 if (current_slot != "") { 1064 fb_set_active((separator + current_slot).c_str()); 1065 } 1066 } 1067 } 1068 1069 static void do_update(Transport* transport, const char* filename, const std::string& slot_override, bool erase_first, bool skip_secondary) { 1070 queue_info_dump(); 1071 1072 fb_queue_query_save("product", cur_product, sizeof(cur_product)); 1073 1074 ZipArchiveHandle zip; 1075 int error = OpenArchive(filename, &zip); 1076 if (error != 0) { 1077 CloseArchive(zip); 1078 die("failed to open zip file '%s': %s", filename, ErrorCodeString(error)); 1079 } 1080 1081 int64_t sz; 1082 void* data = unzip_file(zip, "android-info.txt", &sz); 1083 if (data == nullptr) { 1084 CloseArchive(zip); 1085 die("update package '%s' has no android-info.txt", filename); 1086 } 1087 1088 setup_requirements(reinterpret_cast<char*>(data), sz); 1089 1090 std::string secondary; 1091 if (!skip_secondary) { 1092 if (slot_override != "") { 1093 secondary = get_other_slot(transport, slot_override); 1094 } else { 1095 secondary = get_other_slot(transport); 1096 } 1097 if (secondary == "") { 1098 if (supports_AB(transport)) { 1099 fprintf(stderr, "Warning: Could not determine slot for secondary images. Ignoring.\n"); 1100 } 1101 skip_secondary = true; 1102 } 1103 } 1104 for (size_t i = 0; i < arraysize(images); ++i) { 1105 const char* slot = slot_override.c_str(); 1106 if (images[i].is_secondary) { 1107 if (!skip_secondary) { 1108 slot = secondary.c_str(); 1109 } else { 1110 continue; 1111 } 1112 } 1113 1114 int fd = unzip_to_file(zip, images[i].img_name); 1115 if (fd == -1) { 1116 if (images[i].is_optional) { 1117 continue; 1118 } 1119 CloseArchive(zip); 1120 exit(1); // unzip_to_file already explained why. 1121 } 1122 fastboot_buffer buf; 1123 if (!load_buf_fd(transport, fd, &buf)) { 1124 die("cannot load %s from flash: %s", images[i].img_name, strerror(errno)); 1125 } 1126 1127 auto update = [&](const std::string &partition) { 1128 do_update_signature(zip, images[i].sig_name); 1129 if (erase_first && needs_erase(transport, partition.c_str())) { 1130 fb_queue_erase(partition.c_str()); 1131 } 1132 flash_buf(partition.c_str(), &buf); 1133 /* not closing the fd here since the sparse code keeps the fd around 1134 * but hasn't mmaped data yet. The tmpfile will get cleaned up when the 1135 * program exits. 1136 */ 1137 }; 1138 do_for_partitions(transport, images[i].part_name, slot, update, false); 1139 } 1140 1141 CloseArchive(zip); 1142 if (slot_override == "all") { 1143 set_active(transport, "a"); 1144 } else { 1145 set_active(transport, slot_override); 1146 } 1147 } 1148 1149 static void do_send_signature(const std::string& fn) { 1150 std::size_t extension_loc = fn.find(".img"); 1151 if (extension_loc == std::string::npos) return; 1152 1153 std::string fs_sig = fn.substr(0, extension_loc) + ".sig"; 1154 1155 int64_t sz; 1156 void* data = load_file(fs_sig.c_str(), &sz); 1157 if (data == nullptr) return; 1158 1159 fb_queue_download("signature", data, sz); 1160 fb_queue_command("signature", "installing signature"); 1161 } 1162 1163 static void do_flashall(Transport* transport, const std::string& slot_override, int erase_first, bool skip_secondary) { 1164 std::string fname; 1165 queue_info_dump(); 1166 1167 fb_queue_query_save("product", cur_product, sizeof(cur_product)); 1168 1169 fname = find_item("info", product); 1170 if (fname.empty()) die("cannot find android-info.txt"); 1171 1172 int64_t sz; 1173 void* data = load_file(fname.c_str(), &sz); 1174 if (data == nullptr) die("could not load android-info.txt: %s", strerror(errno)); 1175 1176 setup_requirements(reinterpret_cast<char*>(data), sz); 1177 1178 std::string secondary; 1179 if (!skip_secondary) { 1180 if (slot_override != "") { 1181 secondary = get_other_slot(transport, slot_override); 1182 } else { 1183 secondary = get_other_slot(transport); 1184 } 1185 if (secondary == "") { 1186 if (supports_AB(transport)) { 1187 fprintf(stderr, "Warning: Could not determine slot for secondary images. Ignoring.\n"); 1188 } 1189 skip_secondary = true; 1190 } 1191 } 1192 1193 for (size_t i = 0; i < arraysize(images); i++) { 1194 const char* slot = NULL; 1195 if (images[i].is_secondary) { 1196 if (!skip_secondary) slot = secondary.c_str(); 1197 } else { 1198 slot = slot_override.c_str(); 1199 } 1200 if (!slot) continue; 1201 fname = find_item_given_name(images[i].img_name, product); 1202 fastboot_buffer buf; 1203 if (!load_buf(transport, fname.c_str(), &buf)) { 1204 if (images[i].is_optional) continue; 1205 die("could not load '%s': %s\n", images[i].img_name, strerror(errno)); 1206 } 1207 1208 auto flashall = [&](const std::string &partition) { 1209 do_send_signature(fname.c_str()); 1210 if (erase_first && needs_erase(transport, partition.c_str())) { 1211 fb_queue_erase(partition.c_str()); 1212 } 1213 flash_buf(partition.c_str(), &buf); 1214 }; 1215 do_for_partitions(transport, images[i].part_name, slot, flashall, false); 1216 } 1217 1218 if (slot_override == "all") { 1219 set_active(transport, "a"); 1220 } else { 1221 set_active(transport, slot_override); 1222 } 1223 } 1224 1225 #define skip(n) do { argc -= (n); argv += (n); } while (0) 1226 #define require(n) do { if (argc < (n)) {usage(); exit(1);}} while (0) 1227 1228 static int do_bypass_unlock_command(int argc, char **argv) 1229 { 1230 if (argc <= 2) return 0; 1231 skip(2); 1232 1233 /* 1234 * Process unlock_bootloader, we have to load the message file 1235 * and send that to the remote device. 1236 */ 1237 require(1); 1238 1239 int64_t sz; 1240 void* data = load_file(*argv, &sz); 1241 if (data == nullptr) die("could not load '%s': %s", *argv, strerror(errno)); 1242 fb_queue_download("unlock_message", data, sz); 1243 fb_queue_command("flashing unlock_bootloader", "unlocking bootloader"); 1244 skip(1); 1245 return 0; 1246 } 1247 1248 static int do_oem_command(int argc, char** argv) { 1249 if (argc <= 1) return 0; 1250 1251 std::string command; 1252 while (argc > 0) { 1253 command += *argv; 1254 skip(1); 1255 if (argc != 0) command += " "; 1256 } 1257 1258 fb_queue_command(command.c_str(), ""); 1259 return 0; 1260 } 1261 1262 static int64_t parse_num(const char *arg) 1263 { 1264 char *endptr; 1265 unsigned long long num; 1266 1267 num = strtoull(arg, &endptr, 0); 1268 if (endptr == arg) { 1269 return -1; 1270 } 1271 1272 if (*endptr == 'k' || *endptr == 'K') { 1273 if (num >= (-1ULL) / 1024) { 1274 return -1; 1275 } 1276 num *= 1024LL; 1277 endptr++; 1278 } else if (*endptr == 'm' || *endptr == 'M') { 1279 if (num >= (-1ULL) / (1024 * 1024)) { 1280 return -1; 1281 } 1282 num *= 1024LL * 1024LL; 1283 endptr++; 1284 } else if (*endptr == 'g' || *endptr == 'G') { 1285 if (num >= (-1ULL) / (1024 * 1024 * 1024)) { 1286 return -1; 1287 } 1288 num *= 1024LL * 1024LL * 1024LL; 1289 endptr++; 1290 } 1291 1292 if (*endptr != '\0') { 1293 return -1; 1294 } 1295 1296 if (num > INT64_MAX) { 1297 return -1; 1298 } 1299 1300 return num; 1301 } 1302 1303 static std::string fb_fix_numeric_var(std::string var) { 1304 // Some bootloaders (angler, for example), send spurious leading whitespace. 1305 var = android::base::Trim(var); 1306 // Some bootloaders (hammerhead, for example) use implicit hex. 1307 // This code used to use strtol with base 16. 1308 if (!android::base::StartsWith(var, "0x")) var = "0x" + var; 1309 return var; 1310 } 1311 1312 static unsigned fb_get_flash_block_size(Transport* transport, std::string name) { 1313 std::string sizeString; 1314 if (!fb_getvar(transport, name.c_str(), &sizeString)) { 1315 /* This device does not report flash block sizes, so return 0 */ 1316 return 0; 1317 } 1318 sizeString = fb_fix_numeric_var(sizeString); 1319 1320 unsigned size; 1321 if (!android::base::ParseUint(sizeString, &size)) { 1322 fprintf(stderr, "Couldn't parse %s '%s'.\n", name.c_str(), sizeString.c_str()); 1323 return 0; 1324 } 1325 if (size < 4096 || (size & (size - 1)) != 0) { 1326 fprintf(stderr, "Invalid %s %u: must be a power of 2 and at least 4096.\n", 1327 name.c_str(), size); 1328 return 0; 1329 } 1330 return size; 1331 } 1332 1333 static void fb_perform_format(Transport* transport, 1334 const char* partition, int skip_if_not_supported, 1335 const char* type_override, const char* size_override, 1336 const std::string& initial_dir) { 1337 std::string partition_type, partition_size; 1338 1339 struct fastboot_buffer buf; 1340 const char* errMsg = nullptr; 1341 const struct fs_generator* gen = nullptr; 1342 int fd; 1343 1344 unsigned int limit = INT_MAX; 1345 if (target_sparse_limit > 0 && target_sparse_limit < limit) { 1346 limit = target_sparse_limit; 1347 } 1348 if (sparse_limit > 0 && sparse_limit < limit) { 1349 limit = sparse_limit; 1350 } 1351 1352 if (!fb_getvar(transport, std::string("partition-type:") + partition, &partition_type)) { 1353 errMsg = "Can't determine partition type.\n"; 1354 goto failed; 1355 } 1356 if (type_override) { 1357 if (partition_type != type_override) { 1358 fprintf(stderr, "Warning: %s type is %s, but %s was requested for formatting.\n", 1359 partition, partition_type.c_str(), type_override); 1360 } 1361 partition_type = type_override; 1362 } 1363 1364 if (!fb_getvar(transport, std::string("partition-size:") + partition, &partition_size)) { 1365 errMsg = "Unable to get partition size\n"; 1366 goto failed; 1367 } 1368 if (size_override) { 1369 if (partition_size != size_override) { 1370 fprintf(stderr, "Warning: %s size is %s, but %s was requested for formatting.\n", 1371 partition, partition_size.c_str(), size_override); 1372 } 1373 partition_size = size_override; 1374 } 1375 partition_size = fb_fix_numeric_var(partition_size); 1376 1377 gen = fs_get_generator(partition_type); 1378 if (!gen) { 1379 if (skip_if_not_supported) { 1380 fprintf(stderr, "Erase successful, but not automatically formatting.\n"); 1381 fprintf(stderr, "File system type %s not supported.\n", partition_type.c_str()); 1382 return; 1383 } 1384 fprintf(stderr, "Formatting is not supported for file system with type '%s'.\n", 1385 partition_type.c_str()); 1386 return; 1387 } 1388 1389 int64_t size; 1390 if (!android::base::ParseInt(partition_size, &size)) { 1391 fprintf(stderr, "Couldn't parse partition size '%s'.\n", partition_size.c_str()); 1392 return; 1393 } 1394 1395 fd = fileno(tmpfile()); 1396 1397 unsigned eraseBlkSize, logicalBlkSize; 1398 eraseBlkSize = fb_get_flash_block_size(transport, "erase-block-size"); 1399 logicalBlkSize = fb_get_flash_block_size(transport, "logical-block-size"); 1400 1401 if (fs_generator_generate(gen, fd, size, initial_dir, eraseBlkSize, logicalBlkSize)) { 1402 fprintf(stderr, "Cannot generate image: %s\n", strerror(errno)); 1403 close(fd); 1404 return; 1405 } 1406 1407 if (!load_buf_fd(transport, fd, &buf)) { 1408 fprintf(stderr, "Cannot read image: %s\n", strerror(errno)); 1409 close(fd); 1410 return; 1411 } 1412 flash_buf(partition, &buf); 1413 return; 1414 1415 failed: 1416 if (skip_if_not_supported) { 1417 fprintf(stderr, "Erase successful, but not automatically formatting.\n"); 1418 if (errMsg) fprintf(stderr, "%s", errMsg); 1419 } 1420 fprintf(stderr, "FAILED (%s)\n", fb_get_error().c_str()); 1421 } 1422 1423 int main(int argc, char **argv) 1424 { 1425 bool wants_wipe = false; 1426 bool wants_reboot = false; 1427 bool wants_reboot_bootloader = false; 1428 bool wants_reboot_emergency = false; 1429 bool skip_reboot = false; 1430 bool wants_set_active = false; 1431 bool skip_secondary = false; 1432 bool erase_first = true; 1433 bool set_fbe_marker = false; 1434 void *data; 1435 int64_t sz; 1436 int longindex; 1437 std::string slot_override; 1438 std::string next_active; 1439 1440 const struct option longopts[] = { 1441 {"base", required_argument, 0, 'b'}, 1442 {"kernel_offset", required_argument, 0, 'k'}, 1443 {"kernel-offset", required_argument, 0, 'k'}, 1444 {"page_size", required_argument, 0, 'n'}, 1445 {"page-size", required_argument, 0, 'n'}, 1446 {"ramdisk_offset", required_argument, 0, 'r'}, 1447 {"ramdisk-offset", required_argument, 0, 'r'}, 1448 {"tags_offset", required_argument, 0, 't'}, 1449 {"tags-offset", required_argument, 0, 't'}, 1450 {"help", no_argument, 0, 'h'}, 1451 {"unbuffered", no_argument, 0, 0}, 1452 {"version", no_argument, 0, 0}, 1453 {"slot", required_argument, 0, 0}, 1454 {"set_active", optional_argument, 0, 'a'}, 1455 {"set-active", optional_argument, 0, 'a'}, 1456 {"skip-secondary", no_argument, 0, 0}, 1457 {"skip-reboot", no_argument, 0, 0}, 1458 #if !defined(_WIN32) 1459 {"wipe-and-use-fbe", no_argument, 0, 0}, 1460 #endif 1461 {0, 0, 0, 0} 1462 }; 1463 1464 serial = getenv("ANDROID_SERIAL"); 1465 1466 while (1) { 1467 int c = getopt_long(argc, argv, "wub:k:n:r:t:s:S:lp:c:i:m:ha::", longopts, &longindex); 1468 if (c < 0) { 1469 break; 1470 } 1471 /* Alphabetical cases */ 1472 switch (c) { 1473 case 'a': 1474 wants_set_active = true; 1475 if (optarg) 1476 next_active = optarg; 1477 break; 1478 case 'b': 1479 base_addr = strtoul(optarg, 0, 16); 1480 break; 1481 case 'c': 1482 cmdline = optarg; 1483 break; 1484 case 'h': 1485 usage(); 1486 return 1; 1487 case 'i': { 1488 char *endptr = nullptr; 1489 unsigned long val; 1490 1491 val = strtoul(optarg, &endptr, 0); 1492 if (!endptr || *endptr != '\0' || (val & ~0xffff)) 1493 die("invalid vendor id '%s'", optarg); 1494 vendor_id = (unsigned short)val; 1495 break; 1496 } 1497 case 'k': 1498 kernel_offset = strtoul(optarg, 0, 16); 1499 break; 1500 case 'l': 1501 long_listing = 1; 1502 break; 1503 case 'n': 1504 page_size = (unsigned)strtoul(optarg, nullptr, 0); 1505 if (!page_size) die("invalid page size"); 1506 break; 1507 case 'p': 1508 product = optarg; 1509 break; 1510 case 'r': 1511 ramdisk_offset = strtoul(optarg, 0, 16); 1512 break; 1513 case 't': 1514 tags_offset = strtoul(optarg, 0, 16); 1515 break; 1516 case 's': 1517 serial = optarg; 1518 break; 1519 case 'S': 1520 sparse_limit = parse_num(optarg); 1521 if (sparse_limit < 0) { 1522 die("invalid sparse limit"); 1523 } 1524 break; 1525 case 'u': 1526 erase_first = false; 1527 break; 1528 case 'w': 1529 wants_wipe = true; 1530 break; 1531 case '?': 1532 return 1; 1533 case 0: 1534 if (strcmp("unbuffered", longopts[longindex].name) == 0) { 1535 setvbuf(stdout, nullptr, _IONBF, 0); 1536 setvbuf(stderr, nullptr, _IONBF, 0); 1537 } else if (strcmp("version", longopts[longindex].name) == 0) { 1538 fprintf(stdout, "fastboot version %s\n", FASTBOOT_REVISION); 1539 return 0; 1540 } else if (strcmp("slot", longopts[longindex].name) == 0) { 1541 slot_override = std::string(optarg); 1542 } else if (strcmp("skip-secondary", longopts[longindex].name) == 0 ) { 1543 skip_secondary = true; 1544 } else if (strcmp("skip-reboot", longopts[longindex].name) == 0 ) { 1545 skip_reboot = true; 1546 #if !defined(_WIN32) 1547 } else if (strcmp("wipe-and-use-fbe", longopts[longindex].name) == 0) { 1548 wants_wipe = true; 1549 set_fbe_marker = true; 1550 #endif 1551 } else { 1552 fprintf(stderr, "Internal error in options processing for %s\n", 1553 longopts[longindex].name); 1554 return 1; 1555 } 1556 break; 1557 default: 1558 abort(); 1559 } 1560 } 1561 1562 argc -= optind; 1563 argv += optind; 1564 1565 if (argc == 0 && !wants_wipe && !wants_set_active) { 1566 usage(); 1567 return 1; 1568 } 1569 1570 if (argc > 0 && !strcmp(*argv, "devices")) { 1571 skip(1); 1572 list_devices(); 1573 return 0; 1574 } 1575 1576 if (argc > 0 && !strcmp(*argv, "help")) { 1577 usage(); 1578 return 0; 1579 } 1580 1581 Transport* transport = open_device(); 1582 if (transport == nullptr) { 1583 return 1; 1584 } 1585 1586 if (!supports_AB(transport) && supports_AB_obsolete(transport)) { 1587 fprintf(stderr, "Warning: Device A/B support is outdated. Bootloader update required.\n"); 1588 } 1589 if (slot_override != "") slot_override = verify_slot(transport, slot_override); 1590 if (next_active != "") next_active = verify_slot(transport, next_active, false); 1591 1592 if (wants_set_active) { 1593 if (next_active == "") { 1594 if (slot_override == "") { 1595 std::string current_slot; 1596 if (fb_getvar(transport, "current-slot", ¤t_slot)) { 1597 next_active = verify_slot(transport, current_slot, false); 1598 } else { 1599 wants_set_active = false; 1600 } 1601 } else { 1602 next_active = verify_slot(transport, slot_override, false); 1603 } 1604 } 1605 } 1606 1607 while (argc > 0) { 1608 if (!strcmp(*argv, "getvar")) { 1609 require(2); 1610 fb_queue_display(argv[1], argv[1]); 1611 skip(2); 1612 } else if(!strcmp(*argv, "erase")) { 1613 require(2); 1614 1615 auto erase = [&](const std::string &partition) { 1616 std::string partition_type; 1617 if (fb_getvar(transport, std::string("partition-type:") + argv[1], &partition_type) && 1618 fs_get_generator(partition_type) != nullptr) { 1619 fprintf(stderr, "******** Did you mean to fastboot format this %s partition?\n", 1620 partition_type.c_str()); 1621 } 1622 1623 fb_queue_erase(partition.c_str()); 1624 }; 1625 do_for_partitions(transport, argv[1], slot_override, erase, true); 1626 skip(2); 1627 } else if(!strncmp(*argv, "format", strlen("format"))) { 1628 char *overrides; 1629 char *type_override = nullptr; 1630 char *size_override = nullptr; 1631 require(2); 1632 /* 1633 * Parsing for: "format[:[type][:[size]]]" 1634 * Some valid things: 1635 * - select ontly the size, and leave default fs type: 1636 * format::0x4000000 userdata 1637 * - default fs type and size: 1638 * format userdata 1639 * format:: userdata 1640 */ 1641 overrides = strchr(*argv, ':'); 1642 if (overrides) { 1643 overrides++; 1644 size_override = strchr(overrides, ':'); 1645 if (size_override) { 1646 size_override[0] = '\0'; 1647 size_override++; 1648 } 1649 type_override = overrides; 1650 } 1651 if (type_override && !type_override[0]) type_override = nullptr; 1652 if (size_override && !size_override[0]) size_override = nullptr; 1653 1654 auto format = [&](const std::string &partition) { 1655 if (erase_first && needs_erase(transport, partition.c_str())) { 1656 fb_queue_erase(partition.c_str()); 1657 } 1658 fb_perform_format(transport, partition.c_str(), 0, 1659 type_override, size_override, ""); 1660 }; 1661 do_for_partitions(transport, argv[1], slot_override, format, true); 1662 skip(2); 1663 } else if(!strcmp(*argv, "signature")) { 1664 require(2); 1665 data = load_file(argv[1], &sz); 1666 if (data == nullptr) die("could not load '%s': %s", argv[1], strerror(errno)); 1667 if (sz != 256) die("signature must be 256 bytes"); 1668 fb_queue_download("signature", data, sz); 1669 fb_queue_command("signature", "installing signature"); 1670 skip(2); 1671 } else if(!strcmp(*argv, "reboot")) { 1672 wants_reboot = true; 1673 skip(1); 1674 if (argc > 0) { 1675 if (!strcmp(*argv, "bootloader")) { 1676 wants_reboot = false; 1677 wants_reboot_bootloader = true; 1678 skip(1); 1679 } else if (!strcmp(*argv, "emergency")) { 1680 wants_reboot = false; 1681 wants_reboot_emergency = true; 1682 skip(1); 1683 } 1684 } 1685 require(0); 1686 } else if(!strcmp(*argv, "reboot-bootloader")) { 1687 wants_reboot_bootloader = true; 1688 skip(1); 1689 } else if (!strcmp(*argv, "continue")) { 1690 fb_queue_command("continue", "resuming boot"); 1691 skip(1); 1692 } else if(!strcmp(*argv, "boot")) { 1693 char *kname = 0; 1694 char *rname = 0; 1695 char *sname = 0; 1696 skip(1); 1697 if (argc > 0) { 1698 kname = argv[0]; 1699 skip(1); 1700 } 1701 if (argc > 0) { 1702 rname = argv[0]; 1703 skip(1); 1704 } 1705 if (argc > 0) { 1706 sname = argv[0]; 1707 skip(1); 1708 } 1709 data = load_bootable_image(kname, rname, sname, &sz, cmdline); 1710 if (data == 0) return 1; 1711 fb_queue_download("boot.img", data, sz); 1712 fb_queue_command("boot", "booting"); 1713 } else if(!strcmp(*argv, "flash")) { 1714 char* pname = argv[1]; 1715 std::string fname; 1716 require(2); 1717 if (argc > 2) { 1718 fname = argv[2]; 1719 skip(3); 1720 } else { 1721 fname = find_item(pname, product); 1722 skip(2); 1723 } 1724 if (fname.empty()) die("cannot determine image filename for '%s'", pname); 1725 1726 auto flash = [&](const std::string &partition) { 1727 if (erase_first && needs_erase(transport, partition.c_str())) { 1728 fb_queue_erase(partition.c_str()); 1729 } 1730 do_flash(transport, partition.c_str(), fname.c_str()); 1731 }; 1732 do_for_partitions(transport, pname, slot_override, flash, true); 1733 } else if(!strcmp(*argv, "flash:raw")) { 1734 char *kname = argv[2]; 1735 char *rname = 0; 1736 char *sname = 0; 1737 require(3); 1738 skip(3); 1739 if (argc > 0) { 1740 rname = argv[0]; 1741 skip(1); 1742 } 1743 if (argc > 0) { 1744 sname = argv[0]; 1745 skip(1); 1746 } 1747 data = load_bootable_image(kname, rname, sname, &sz, cmdline); 1748 if (data == 0) die("cannot load bootable image"); 1749 auto flashraw = [&](const std::string &partition) { 1750 fb_queue_flash(partition.c_str(), data, sz); 1751 }; 1752 do_for_partitions(transport, argv[1], slot_override, flashraw, true); 1753 } else if(!strcmp(*argv, "flashall")) { 1754 skip(1); 1755 if (slot_override == "all") { 1756 fprintf(stderr, "Warning: slot set to 'all'. Secondary slots will not be flashed.\n"); 1757 do_flashall(transport, slot_override, erase_first, true); 1758 } else { 1759 do_flashall(transport, slot_override, erase_first, skip_secondary); 1760 } 1761 wants_reboot = true; 1762 } else if(!strcmp(*argv, "update")) { 1763 bool slot_all = (slot_override == "all"); 1764 if (slot_all) { 1765 fprintf(stderr, "Warning: slot set to 'all'. Secondary slots will not be flashed.\n"); 1766 } 1767 if (argc > 1) { 1768 do_update(transport, argv[1], slot_override, erase_first, skip_secondary || slot_all); 1769 skip(2); 1770 } else { 1771 do_update(transport, "update.zip", slot_override, erase_first, skip_secondary || slot_all); 1772 skip(1); 1773 } 1774 wants_reboot = true; 1775 } else if(!strcmp(*argv, "set_active")) { 1776 require(2); 1777 std::string slot = verify_slot(transport, std::string(argv[1]), false); 1778 // Legacy support: verify_slot() removes leading underscores, we need to put them back 1779 // in for old bootloaders. Legacy bootloaders do not have the slot-count variable but 1780 // do have slot-suffixes. 1781 std::string var; 1782 if (!fb_getvar(transport, "slot-count", &var) && 1783 fb_getvar(transport, "slot-suffixes", &var)) { 1784 slot = "_" + slot; 1785 } 1786 fb_set_active(slot.c_str()); 1787 skip(2); 1788 } else if(!strcmp(*argv, "oem")) { 1789 argc = do_oem_command(argc, argv); 1790 } else if(!strcmp(*argv, "flashing")) { 1791 if (argc == 2 && (!strcmp(*(argv+1), "unlock") || 1792 !strcmp(*(argv+1), "lock") || 1793 !strcmp(*(argv+1), "unlock_critical") || 1794 !strcmp(*(argv+1), "lock_critical") || 1795 !strcmp(*(argv+1), "get_unlock_ability") || 1796 !strcmp(*(argv+1), "get_unlock_bootloader_nonce") || 1797 !strcmp(*(argv+1), "lock_bootloader"))) { 1798 argc = do_oem_command(argc, argv); 1799 } else 1800 if (argc == 3 && !strcmp(*(argv+1), "unlock_bootloader")) { 1801 argc = do_bypass_unlock_command(argc, argv); 1802 } else { 1803 usage(); 1804 return 1; 1805 } 1806 } else { 1807 usage(); 1808 return 1; 1809 } 1810 } 1811 1812 if (wants_wipe) { 1813 fprintf(stderr, "wiping userdata...\n"); 1814 fb_queue_erase("userdata"); 1815 if (set_fbe_marker) { 1816 fprintf(stderr, "setting FBE marker...\n"); 1817 std::string initial_userdata_dir = create_fbemarker_tmpdir(); 1818 if (initial_userdata_dir.empty()) { 1819 return 1; 1820 } 1821 fb_perform_format(transport, "userdata", 1, nullptr, nullptr, initial_userdata_dir); 1822 delete_fbemarker_tmpdir(initial_userdata_dir); 1823 } else { 1824 fb_perform_format(transport, "userdata", 1, nullptr, nullptr, ""); 1825 } 1826 1827 std::string cache_type; 1828 if (fb_getvar(transport, "partition-type:cache", &cache_type) && !cache_type.empty()) { 1829 fprintf(stderr, "wiping cache...\n"); 1830 fb_queue_erase("cache"); 1831 fb_perform_format(transport, "cache", 1, nullptr, nullptr, ""); 1832 } 1833 } 1834 if (wants_set_active) { 1835 fb_set_active(next_active.c_str()); 1836 } 1837 if (wants_reboot && !skip_reboot) { 1838 fb_queue_reboot(); 1839 fb_queue_wait_for_disconnect(); 1840 } else if (wants_reboot_bootloader) { 1841 fb_queue_command("reboot-bootloader", "rebooting into bootloader"); 1842 fb_queue_wait_for_disconnect(); 1843 } else if (wants_reboot_emergency) { 1844 fb_queue_command("reboot-emergency", "rebooting into emergency download (EDL) mode"); 1845 fb_queue_wait_for_disconnect(); 1846 } 1847 1848 return fb_execute_queue(transport) ? EXIT_FAILURE : EXIT_SUCCESS; 1849 } 1850
