1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 */ 6 7 #include <android_bootloader.h> 8 #include <android_bootloader_message.h> 9 #include <android_avb/avb_slot_verify.h> 10 #include <android_avb/avb_ops_user.h> 11 #include <android_avb/rk_avb_ops_user.h> 12 #include <android_image.h> 13 #include <asm/arch/hotkey.h> 14 #include <cli.h> 15 #include <common.h> 16 #include <dt_table.h> 17 #include <image-android-dt.h> 18 #include <malloc.h> 19 #include <fdt_support.h> 20 #include <fs.h> 21 #include <boot_rkimg.h> 22 #include <attestation_key.h> 23 #include <keymaster.h> 24 #include <linux/libfdt_env.h> 25 #include <optee_include/OpteeClientInterface.h> 26 #include <bidram.h> 27 #include <console.h> 28 #include <sysmem.h> 29 30 DECLARE_GLOBAL_DATA_PTR; 31 32 #define ANDROID_PARTITION_BOOT "boot" 33 #define ANDROID_PARTITION_MISC "misc" 34 #define ANDROID_PARTITION_OEM "oem" 35 #define ANDROID_PARTITION_RECOVERY "recovery" 36 #define ANDROID_PARTITION_SYSTEM "system" 37 #define ANDROID_PARTITION_VBMETA "vbmeta" 38 #define ANDROID_PARTITION_SUPER "super" 39 40 41 #define ANDROID_ARG_SLOT_SUFFIX "androidboot.slot_suffix=" 42 #define ANDROID_ARG_ROOT "root=" 43 #define ANDROID_ARG_SERIALNO "androidboot.serialno=" 44 #define ANDROID_VERIFY_STATE "androidboot.verifiedbootstate=" 45 #ifdef CONFIG_ROCKCHIP_RESOURCE_IMAGE 46 #define ANDROID_ARG_FDT_FILENAME "rk-kernel.dtb" 47 #else 48 #define ANDROID_ARG_FDT_FILENAME "kernel.dtb" 49 #endif 50 #define OEM_UNLOCK_ARG_SIZE 30 51 #define UUID_SIZE 37 52 53 #ifdef CONFIG_ANDROID_AB 54 static int is_support_dynamic_partition(struct blk_desc *dev_desc) 55 { 56 disk_partition_t super_part_info; 57 disk_partition_t boot_part_info; 58 int part_num; 59 int is_dp = 0; 60 char *super_dp = NULL; 61 char *super_info = "androidboot.super_partition="; 62 63 memset(&super_part_info, 0x0, sizeof(super_part_info)); 64 part_num = part_get_info_by_name(dev_desc, ANDROID_PARTITION_SUPER, 65 &super_part_info); 66 if (part_num < 0) { 67 memset(&boot_part_info, 0x0, sizeof(boot_part_info)); 68 part_num = part_get_info_by_name(dev_desc, ANDROID_PARTITION_BOOT, 69 &boot_part_info); 70 if (part_num < 0) { 71 is_dp = 0; 72 } else { 73 andr_img_hdr hdr; 74 ulong hdr_blocks = sizeof(struct andr_img_hdr) / 75 boot_part_info.blksz; 76 77 memset(&hdr, 0x0, sizeof(hdr)); 78 if (blk_dread(dev_desc, boot_part_info.start, hdr_blocks, &hdr) != 79 hdr_blocks) { 80 is_dp = 0; 81 } else { 82 debug("hdr cmdline=%s\n", hdr.cmdline); 83 super_dp = strstr(hdr.cmdline, super_info); 84 if (super_dp != NULL) { 85 is_dp = 1; 86 } else { 87 is_dp = 0; 88 } 89 } 90 } 91 } else { 92 debug("Find super partition, the firmware support dynamic partition\n"); 93 is_dp = 1; 94 } 95 96 debug("%s is_dp=%d\n", __func__, is_dp); 97 return is_dp; 98 } 99 100 static int get_partition_unique_uuid(char *partition, 101 char *guid_buf, 102 size_t guid_buf_size) 103 { 104 struct blk_desc *dev_desc; 105 disk_partition_t part_info; 106 107 dev_desc = rockchip_get_bootdev(); 108 if (!dev_desc) { 109 printf("%s: Could not find device\n", __func__); 110 return -1; 111 } 112 113 if (part_get_info_by_name(dev_desc, partition, &part_info) < 0) { 114 printf("Could not find \"%s\" partition\n", partition); 115 return -1; 116 } 117 118 if (guid_buf && guid_buf_size > 0) 119 memcpy(guid_buf, part_info.uuid, guid_buf_size); 120 121 return 0; 122 } 123 124 static void reset_cpu_if_android_ab(void) 125 { 126 printf("Reset in AB system.\n"); 127 flushc(); 128 /* 129 * Since we use the retry-count in ab system, then can 130 * try reboot if verify fail until the retry-count is 131 * equal to zero. 132 */ 133 reset_cpu(0); 134 } 135 136 static void update_root_uuid_if_android_ab(void) 137 { 138 /* 139 * In android a/b & avb process, the system.img is mandory and the 140 * "root=" will be added in vbmeta.img. 141 * 142 * In linux a/b & avb process, the system is NOT mandory and the 143 * "root=" will not be added in vbmeta.img but in kernel dts bootargs. 144 * (Parsed and droped late, i.e. "root=" is not available now/always). 145 * 146 * To compatible with the above two processes, test the existence of 147 * "root=" and create it for linux ab & avb. 148 */ 149 char root_partuuid[70] = "root=PARTUUID="; 150 char *boot_args = env_get("bootargs"); 151 char guid_buf[UUID_SIZE] = {0}; 152 struct blk_desc *dev_desc; 153 154 dev_desc = rockchip_get_bootdev(); 155 if (!dev_desc) { 156 printf("%s: Could not find device\n", __func__); 157 return; 158 } 159 160 if (is_support_dynamic_partition(dev_desc)) { 161 return; 162 } 163 164 if (!strstr(boot_args, "root=")) { 165 get_partition_unique_uuid(ANDROID_PARTITION_SYSTEM, 166 guid_buf, UUID_SIZE); 167 strcat(root_partuuid, guid_buf); 168 env_update("bootargs", root_partuuid); 169 } 170 } 171 172 static int decrease_tries_if_android_ab(char *slot_suffix) 173 { 174 AvbABData ab_data_orig; 175 AvbABData ab_data; 176 AvbOps *ops; 177 size_t slot_index = 0; 178 179 /* TODO: get from pre-loader or misc partition */ 180 if (rk_avb_get_current_slot(slot_suffix)) { 181 printf("rk_avb_get_current_slot() failed\n"); 182 return -1; 183 } 184 185 if (!strncmp(slot_suffix, "_a", 2)) 186 slot_index = 0; 187 else if (!strncmp(slot_suffix, "_b", 2)) 188 slot_index = 1; 189 else 190 slot_index = 0; 191 192 ops = avb_ops_user_new(); 193 if (!ops) { 194 printf("avb_ops_user_new() failed!\n"); 195 return -1; 196 } 197 198 if (load_metadata(ops->ab_ops, &ab_data, &ab_data_orig)) { 199 printf("Can not load metadata\n"); 200 return -1; 201 } 202 203 /* ... and decrement tries remaining, if applicable. */ 204 if (!ab_data.slots[slot_index].successful_boot && 205 ab_data.slots[slot_index].tries_remaining > 0) 206 ab_data.slots[slot_index].tries_remaining -= 1; 207 208 if (save_metadata_if_changed(ops->ab_ops, &ab_data, &ab_data_orig)) { 209 printf("Can not save metadata\n"); 210 return -1; 211 } 212 213 if (slot_suffix[0] != '_') { 214 #ifndef CONFIG_ANDROID_AVB 215 printf("###There is no bootable slot, bring up lastboot!###\n"); 216 if (rk_get_lastboot() == 1) 217 memcpy(slot_suffix, "_b", 2); 218 else if (rk_get_lastboot() == 0) 219 memcpy(slot_suffix, "_a", 2); 220 else 221 #endif 222 return -1; 223 } 224 225 return 0; 226 } 227 #else 228 static inline void reset_cpu_if_android_ab(void) {} 229 static inline void update_root_uuid_if_android_ab(void) {} 230 static inline int decrease_tries_if_android_ab(char *slot_suffix) { return 0; } 231 #endif 232 233 int android_bootloader_message_load( 234 struct blk_desc *dev_desc, 235 const disk_partition_t *part_info, 236 struct android_bootloader_message *message) 237 { 238 ulong message_blocks = sizeof(struct android_bootloader_message) / 239 part_info->blksz; 240 if (message_blocks > part_info->size) { 241 printf("misc partition too small.\n"); 242 return -1; 243 } 244 245 if (blk_dread(dev_desc, part_info->start + android_bcb_msg_sector_offset(), 246 message_blocks, message) != 247 message_blocks) { 248 printf("Could not read from misc partition\n"); 249 return -1; 250 } 251 debug("ANDROID: Loaded BCB, %lu blocks.\n", message_blocks); 252 return 0; 253 } 254 255 static int android_bootloader_message_write( 256 struct blk_desc *dev_desc, 257 const disk_partition_t *part_info, 258 struct android_bootloader_message *message) 259 { 260 ulong message_blocks = sizeof(struct android_bootloader_message) / 261 part_info->blksz + android_bcb_msg_sector_offset(); 262 263 if (message_blocks > part_info->size) { 264 printf("misc partition too small.\n"); 265 return -1; 266 } 267 268 if (blk_dwrite(dev_desc, part_info->start, message_blocks, message) != 269 message_blocks) { 270 printf("Could not write to misc partition\n"); 271 return -1; 272 } 273 debug("ANDROID: Wrote new BCB, %lu blocks.\n", message_blocks); 274 return 0; 275 } 276 277 static enum android_boot_mode android_bootloader_load_and_clear_mode( 278 struct blk_desc *dev_desc, 279 const disk_partition_t *misc_part_info) 280 { 281 struct android_bootloader_message bcb; 282 283 #ifdef CONFIG_FASTBOOT 284 char *bootloader_str; 285 286 /* Check for message from bootloader stored in RAM from a previous boot. 287 */ 288 bootloader_str = (char *)CONFIG_FASTBOOT_BUF_ADDR; 289 if (!strcmp("reboot-bootloader", bootloader_str)) { 290 bootloader_str[0] = '\0'; 291 return ANDROID_BOOT_MODE_BOOTLOADER; 292 } 293 #endif 294 295 /* Check and update the BCB message if needed. */ 296 if (android_bootloader_message_load(dev_desc, misc_part_info, &bcb) < 297 0) { 298 printf("WARNING: Unable to load the BCB.\n"); 299 return ANDROID_BOOT_MODE_NORMAL; 300 } 301 302 if (!strcmp("bootonce-bootloader", bcb.command)) { 303 /* Erase the message in the BCB since this value should be used 304 * only once. 305 */ 306 memset(bcb.command, 0, sizeof(bcb.command)); 307 android_bootloader_message_write(dev_desc, misc_part_info, 308 &bcb); 309 return ANDROID_BOOT_MODE_BOOTLOADER; 310 } 311 312 if (!strcmp("boot-recovery", bcb.command)) 313 return ANDROID_BOOT_MODE_RECOVERY; 314 315 if (!strcmp("boot-fastboot", bcb.command)) 316 return ANDROID_BOOT_MODE_RECOVERY; 317 318 return ANDROID_BOOT_MODE_NORMAL; 319 } 320 321 /** 322 * Return the reboot reason string for the passed boot mode. 323 * 324 * @param mode The Android Boot mode. 325 * @return a pointer to the reboot reason string for mode. 326 */ 327 static const char *android_boot_mode_str(enum android_boot_mode mode) 328 { 329 switch (mode) { 330 case ANDROID_BOOT_MODE_NORMAL: 331 return "(none)"; 332 case ANDROID_BOOT_MODE_RECOVERY: 333 return "recovery"; 334 case ANDROID_BOOT_MODE_BOOTLOADER: 335 return "bootloader"; 336 } 337 return NULL; 338 } 339 340 static int android_bootloader_boot_bootloader(void) 341 { 342 const char *fastboot_cmd = env_get("fastbootcmd"); 343 344 if (fastboot_cmd == NULL) { 345 printf("fastboot_cmd is null, run default fastboot_cmd!\n"); 346 fastboot_cmd = "fastboot usb 0"; 347 } 348 349 return run_command(fastboot_cmd, CMD_FLAG_ENV); 350 } 351 352 #ifdef CONFIG_SUPPORT_OEM_DTB 353 static int android_bootloader_get_fdt(const char *part_name, 354 const char *load_file_name) 355 { 356 struct blk_desc *dev_desc; 357 disk_partition_t part_info; 358 char *fdt_addr = NULL; 359 char dev_part[3] = {0}; 360 loff_t bytes = 0; 361 loff_t pos = 0; 362 loff_t len_read; 363 unsigned long addr = 0; 364 int part_num = -1; 365 int ret; 366 367 dev_desc = rockchip_get_bootdev(); 368 if (!dev_desc) { 369 printf("%s: dev_desc is NULL!\n", __func__); 370 return -1; 371 } 372 373 part_num = part_get_info_by_name(dev_desc, part_name, &part_info); 374 if (part_num < 0) { 375 printf("ANDROID: Could not find partition \"%s\"\n", part_name); 376 return -1; 377 } 378 379 snprintf(dev_part, ARRAY_SIZE(dev_part), ":%x", part_num); 380 if (fs_set_blk_dev_with_part(dev_desc, part_num)) 381 return -1; 382 383 fdt_addr = env_get("fdt_addr_r"); 384 if (!fdt_addr) { 385 printf("ANDROID: No Found FDT Load Address.\n"); 386 return -1; 387 } 388 addr = simple_strtoul(fdt_addr, NULL, 16); 389 390 ret = fs_read(load_file_name, addr, pos, bytes, &len_read); 391 if (ret < 0) 392 return -1; 393 394 return 0; 395 } 396 #endif 397 398 /* 399 * Test on RK3308 AARCH64 mode (Cortex A35 816 MHZ) boot with eMMC: 400 * 401 * |-------------------------------------------------------------------| 402 * | Format | Size(Byte) | Ratio | Decomp time(ms) | Boot time(ms) | 403 * |-------------------------------------------------------------------| 404 * | Image | 7720968 | | | 488 | 405 * |-------------------------------------------------------------------| 406 * | Image.lz4 | 4119448 | 53% | 59 | 455 | 407 * |-------------------------------------------------------------------| 408 * | Image.lzo | 3858322 | 49% | 141 | 536 | 409 * |-------------------------------------------------------------------| 410 * | Image.gz | 3529108 | 45% | 222 | 609 | 411 * |-------------------------------------------------------------------| 412 * | Image.bz2 | 3295914 | 42% | 2940 | | 413 * |-------------------------------------------------------------------| 414 * | Image.lzma| 2683750 | 34% | | | 415 * |-------------------------------------------------------------------| 416 */ 417 static int sysmem_alloc_uncomp_kernel(ulong andr_hdr, 418 ulong uncomp_kaddr, u32 comp) 419 { 420 struct andr_img_hdr *hdr = (struct andr_img_hdr *)andr_hdr; 421 ulong ksize, kaddr; 422 423 if (comp != IH_COMP_NONE) { 424 /* Release compressed sysmem */ 425 kaddr = env_get_hex("kernel_addr_c", 0); 426 if (!kaddr) 427 kaddr = env_get_hex("kernel_addr_r", 0); 428 kaddr -= hdr->page_size; 429 if (sysmem_free((phys_addr_t)kaddr)) 430 return -EINVAL; 431 432 /* 433 * Use smaller Ratio to get larger estimated uncompress 434 * kernel size. 435 */ 436 if (comp == IH_COMP_ZIMAGE) 437 ksize = hdr->kernel_size * 100 / 45; 438 else if (comp == IH_COMP_LZ4) 439 ksize = hdr->kernel_size * 100 / 50; 440 else if (comp == IH_COMP_LZO) 441 ksize = hdr->kernel_size * 100 / 45; 442 else if (comp == IH_COMP_GZIP) 443 ksize = hdr->kernel_size * 100 / 40; 444 else if (comp == IH_COMP_BZIP2) 445 ksize = hdr->kernel_size * 100 / 40; 446 else if (comp == IH_COMP_LZMA) 447 ksize = hdr->kernel_size * 100 / 30; 448 else 449 ksize = hdr->kernel_size; 450 451 kaddr = uncomp_kaddr; 452 ksize = ALIGN(ksize, 512); 453 if (!sysmem_alloc_base(MEMBLK_ID_UNCOMP_KERNEL, 454 (phys_addr_t)kaddr, ksize)) 455 return -ENOMEM; 456 457 hotkey_run(HK_SYSMEM); 458 } 459 460 return 0; 461 } 462 463 int android_bootloader_boot_kernel(unsigned long kernel_address) 464 { 465 char *kernel_addr_r = env_get("kernel_addr_r"); 466 char *kernel_addr_c = env_get("kernel_addr_c"); 467 char *fdt_addr = env_get("fdt_addr"); 468 char kernel_addr_str[12]; 469 char comp_str[32] = {0}; 470 ulong comp_type; 471 const char *comp_name[] = { 472 [IH_COMP_NONE] = "IMAGE", 473 [IH_COMP_GZIP] = "GZIP", 474 [IH_COMP_BZIP2] = "BZIP2", 475 [IH_COMP_LZMA] = "LZMA", 476 [IH_COMP_LZO] = "LZO", 477 [IH_COMP_LZ4] = "LZ4", 478 [IH_COMP_ZIMAGE]= "ZIMAGE", 479 }; 480 char *bootm_args[] = { 481 "bootm", kernel_addr_str, kernel_addr_str, fdt_addr, NULL }; 482 483 comp_type = env_get_ulong("os_comp", 10, 0); 484 sprintf(kernel_addr_str, "0x%08lx", kernel_address); 485 486 if (comp_type != IH_COMP_NONE) { 487 if (comp_type == IH_COMP_ZIMAGE && 488 kernel_addr_r && !kernel_addr_c) { 489 kernel_addr_c = kernel_addr_r; 490 kernel_addr_r = __stringify(CONFIG_SYS_SDRAM_BASE); 491 } 492 snprintf(comp_str, 32, "%s%s%s", 493 "(Uncompress to ", kernel_addr_r, ")"); 494 } 495 496 printf("Booting %s kernel at %s%s with fdt at %s...\n\n\n", 497 comp_name[comp_type], 498 comp_type != IH_COMP_NONE ? kernel_addr_c : kernel_addr_r, 499 comp_str, fdt_addr); 500 501 hotkey_run(HK_SYSMEM); 502 503 /* 504 * Check whether there is enough space for uncompress kernel, 505 * Actually, here only gives a sysmem warning message when failed 506 * but never return -1. 507 */ 508 if (sysmem_alloc_uncomp_kernel(kernel_address, 509 simple_strtoul(kernel_addr_r, NULL, 16), 510 comp_type)) 511 return -1; 512 513 /* Check sysmem overflow */ 514 sysmem_overflow_check(); 515 516 do_bootm(NULL, 0, 4, bootm_args); 517 518 return -1; 519 } 520 521 static char *strjoin(const char **chunks, char separator) 522 { 523 int len, joined_len = 0; 524 char *ret, *current; 525 const char **p; 526 527 for (p = chunks; *p; p++) 528 joined_len += strlen(*p) + 1; 529 530 if (!joined_len) { 531 ret = malloc(1); 532 if (ret) 533 ret[0] = '\0'; 534 return ret; 535 } 536 537 ret = malloc(joined_len); 538 current = ret; 539 if (!ret) 540 return ret; 541 542 for (p = chunks; *p; p++) { 543 len = strlen(*p); 544 memcpy(current, *p, len); 545 current += len; 546 *current = separator; 547 current++; 548 } 549 /* Replace the last separator by a \0. */ 550 current[-1] = '\0'; 551 return ret; 552 } 553 554 /** android_assemble_cmdline - Assemble the command line to pass to the kernel 555 * @return a newly allocated string 556 */ 557 char *android_assemble_cmdline(const char *slot_suffix, 558 const char *extra_args) 559 { 560 const char *cmdline_chunks[16]; 561 const char **current_chunk = cmdline_chunks; 562 char *env_cmdline, *cmdline, *rootdev_input, *serialno; 563 char *allocated_suffix = NULL; 564 char *allocated_serialno = NULL; 565 char *allocated_rootdev = NULL; 566 unsigned long rootdev_len; 567 568 env_cmdline = env_get("bootargs"); 569 if (env_cmdline) 570 *(current_chunk++) = env_cmdline; 571 572 /* The |slot_suffix| needs to be passed to the kernel to know what 573 * slot to boot from. 574 */ 575 if (slot_suffix) { 576 allocated_suffix = malloc(strlen(ANDROID_ARG_SLOT_SUFFIX) + 577 strlen(slot_suffix) + 1); 578 memset(allocated_suffix, 0, strlen(ANDROID_ARG_SLOT_SUFFIX) 579 + strlen(slot_suffix) + 1); 580 strcpy(allocated_suffix, ANDROID_ARG_SLOT_SUFFIX); 581 strcat(allocated_suffix, slot_suffix); 582 *(current_chunk++) = allocated_suffix; 583 } 584 585 serialno = env_get("serial#"); 586 if (serialno) { 587 allocated_serialno = malloc(strlen(ANDROID_ARG_SERIALNO) + 588 strlen(serialno) + 1); 589 memset(allocated_serialno, 0, strlen(ANDROID_ARG_SERIALNO) + 590 strlen(serialno) + 1); 591 strcpy(allocated_serialno, ANDROID_ARG_SERIALNO); 592 strcat(allocated_serialno, serialno); 593 *(current_chunk++) = allocated_serialno; 594 } 595 596 rootdev_input = env_get("android_rootdev"); 597 if (rootdev_input) { 598 rootdev_len = strlen(ANDROID_ARG_ROOT) + CONFIG_SYS_CBSIZE + 1; 599 allocated_rootdev = malloc(rootdev_len); 600 strcpy(allocated_rootdev, ANDROID_ARG_ROOT); 601 cli_simple_process_macros(rootdev_input, 602 allocated_rootdev + 603 strlen(ANDROID_ARG_ROOT)); 604 /* Make sure that the string is null-terminated since the 605 * previous could not copy to the end of the input string if it 606 * is too big. 607 */ 608 allocated_rootdev[rootdev_len - 1] = '\0'; 609 *(current_chunk++) = allocated_rootdev; 610 } 611 612 if (extra_args) 613 *(current_chunk++) = extra_args; 614 615 *(current_chunk++) = NULL; 616 cmdline = strjoin(cmdline_chunks, ' '); 617 free(allocated_suffix); 618 free(allocated_rootdev); 619 return cmdline; 620 } 621 622 #ifdef CONFIG_ANDROID_AVB 623 static void slot_set_unbootable(AvbABSlotData* slot) 624 { 625 slot->priority = 0; 626 slot->tries_remaining = 0; 627 slot->successful_boot = 0; 628 } 629 630 static AvbSlotVerifyResult android_slot_verify(char *boot_partname, 631 unsigned long *android_load_address, 632 char *slot_suffix) 633 { 634 const char *requested_partitions[1] = {NULL}; 635 uint8_t unlocked = true; 636 AvbOps *ops; 637 AvbSlotVerifyFlags flags; 638 AvbSlotVerifyData *slot_data[1] = {NULL}; 639 AvbSlotVerifyResult verify_result; 640 AvbABData ab_data, ab_data_orig; 641 size_t slot_index_to_boot = 0; 642 char verify_state[38] = {0}; 643 char can_boot = 1; 644 unsigned long load_address = *android_load_address; 645 struct andr_img_hdr *hdr; 646 647 requested_partitions[0] = boot_partname; 648 ops = avb_ops_user_new(); 649 if (ops == NULL) { 650 printf("avb_ops_user_new() failed!\n"); 651 return AVB_SLOT_VERIFY_RESULT_ERROR_OOM; 652 } 653 654 if (ops->read_is_device_unlocked(ops, (bool *)&unlocked) != AVB_IO_RESULT_OK) 655 printf("Error determining whether device is unlocked.\n"); 656 657 printf("read_is_device_unlocked() ops returned that device is %s\n", 658 (unlocked & LOCK_MASK)? "UNLOCKED" : "LOCKED"); 659 660 flags = AVB_SLOT_VERIFY_FLAGS_NONE; 661 if (unlocked & LOCK_MASK) 662 flags |= AVB_SLOT_VERIFY_FLAGS_ALLOW_VERIFICATION_ERROR; 663 664 if(load_metadata(ops->ab_ops, &ab_data, &ab_data_orig)) { 665 printf("Can not load metadata\n"); 666 return AVB_SLOT_VERIFY_RESULT_ERROR_IO; 667 } 668 669 if (!strncmp(slot_suffix, "_a", 2)) 670 slot_index_to_boot = 0; 671 else if (!strncmp(slot_suffix, "_b", 2)) 672 slot_index_to_boot = 1; 673 else 674 slot_index_to_boot = 0; 675 676 verify_result = 677 avb_slot_verify(ops, 678 requested_partitions, 679 slot_suffix, 680 flags, 681 AVB_HASHTREE_ERROR_MODE_RESTART, 682 &slot_data[0]); 683 684 strcat(verify_state, ANDROID_VERIFY_STATE); 685 switch (verify_result) { 686 case AVB_SLOT_VERIFY_RESULT_OK: 687 if (unlocked & LOCK_MASK) 688 strcat(verify_state, "orange"); 689 else 690 strcat(verify_state, "green"); 691 break; 692 case AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED: 693 if (unlocked & LOCK_MASK) 694 strcat(verify_state, "orange"); 695 else 696 strcat(verify_state, "yellow"); 697 break; 698 case AVB_SLOT_VERIFY_RESULT_ERROR_OOM: 699 case AVB_SLOT_VERIFY_RESULT_ERROR_IO: 700 case AVB_SLOT_VERIFY_RESULT_ERROR_INVALID_METADATA: 701 case AVB_SLOT_VERIFY_RESULT_ERROR_UNSUPPORTED_VERSION: 702 case AVB_SLOT_VERIFY_RESULT_ERROR_VERIFICATION: 703 case AVB_SLOT_VERIFY_RESULT_ERROR_ROLLBACK_INDEX: 704 default: 705 if (unlocked & LOCK_MASK) 706 strcat(verify_state, "orange"); 707 else 708 strcat(verify_state, "red"); 709 break; 710 } 711 712 if (!slot_data[0]) { 713 can_boot = 0; 714 goto out; 715 } 716 717 if (verify_result == AVB_SLOT_VERIFY_RESULT_OK || 718 verify_result == AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED || 719 (unlocked & LOCK_MASK)) { 720 int len = 0; 721 char *bootargs, *newbootargs; 722 723 if (*slot_data[0]->cmdline) { 724 debug("Kernel command line: %s\n", slot_data[0]->cmdline); 725 len += strlen(slot_data[0]->cmdline); 726 } 727 728 bootargs = env_get("bootargs"); 729 if (bootargs) 730 len += strlen(bootargs); 731 732 newbootargs = malloc(len + 2); 733 734 if (!newbootargs) { 735 puts("Error: malloc in android_slot_verify failed!\n"); 736 return AVB_SLOT_VERIFY_RESULT_ERROR_OOM; 737 } 738 *newbootargs = '\0'; 739 740 if (bootargs) { 741 strcpy(newbootargs, bootargs); 742 strcat(newbootargs, " "); 743 } 744 if (*slot_data[0]->cmdline) 745 strcat(newbootargs, slot_data[0]->cmdline); 746 env_set("bootargs", newbootargs); 747 748 /* Reserve page_size */ 749 hdr = (void *)slot_data[0]->loaded_partitions->data; 750 load_address -= hdr->page_size; 751 *android_load_address = load_address; 752 753 #ifdef CONFIG_ANDROID_BOOT_IMAGE_SEPARATE 754 android_image_memcpy_separate(hdr, (void *)load_address); 755 #else 756 memcpy((uint8_t *)load_address, 757 slot_data[0]->loaded_partitions->data, 758 slot_data[0]->loaded_partitions->data_size); 759 #endif 760 } else { 761 slot_set_unbootable(&ab_data.slots[slot_index_to_boot]); 762 } 763 764 out: 765 #if defined(CONFIG_ANDROID_AB) && !defined(CONFIG_ANDROID_AVB) 766 /* 767 * In ab & avb process, the tries_remaining minus one in function 768 * android_slot_verify, shield this function here. 769 */ 770 /* ... and decrement tries remaining, if applicable. */ 771 if (!ab_data.slots[slot_index_to_boot].successful_boot && 772 ab_data.slots[slot_index_to_boot].tries_remaining > 0) { 773 ab_data.slots[slot_index_to_boot].tries_remaining -= 1; 774 } 775 #endif 776 env_update("bootargs", verify_state); 777 if (save_metadata_if_changed(ops->ab_ops, &ab_data, &ab_data_orig)) { 778 printf("Can not save metadata\n"); 779 verify_result = AVB_SLOT_VERIFY_RESULT_ERROR_IO; 780 } 781 782 if (slot_data[0] != NULL) 783 avb_slot_verify_data_free(slot_data[0]); 784 785 if ((unlocked & LOCK_MASK) && can_boot) 786 return 0; 787 else 788 return verify_result; 789 } 790 #endif 791 792 #if defined(CONFIG_CMD_DTIMG) && defined(CONFIG_OF_LIBFDT_OVERLAY) 793 794 /* 795 * Default return index 0. 796 */ 797 __weak int board_select_fdt_index(ulong dt_table_hdr) 798 { 799 /* 800 * User can use "dt_for_each_entry(entry, hdr, idx)" to iterate 801 * over all dt entry of DT image and pick up which they want. 802 * 803 * Example: 804 * struct dt_table_entry *entry; 805 * int index; 806 * 807 * dt_for_each_entry(entry, dt_table_hdr, index) { 808 * 809 * .... (use entry) 810 * } 811 * 812 * return index; 813 */ 814 return 0; 815 } 816 817 static int android_get_dtbo(ulong *fdt_dtbo, 818 const struct andr_img_hdr *hdr, 819 int *index, int boot_mode) 820 { 821 struct dt_table_header *dt_hdr = NULL; 822 struct blk_desc *dev_desc; 823 const char *part_name; 824 disk_partition_t part_info; 825 u32 blk_offset, blk_cnt; 826 void *buf; 827 ulong e_addr; 828 u32 e_size; 829 int e_idx; 830 int ret; 831 832 /* Get partition according to boot mode */ 833 if (boot_mode == BOOT_MODE_RECOVERY) 834 part_name = PART_RECOVERY; 835 else 836 part_name = PART_DTBO; 837 838 /* Get partition info */ 839 dev_desc = rockchip_get_bootdev(); 840 if (!dev_desc) { 841 printf("%s: dev_desc is NULL!\n", __func__); 842 return -ENODEV; 843 } 844 845 ret = part_get_info_by_name(dev_desc, part_name, &part_info); 846 if (ret < 0) { 847 printf("%s: failed to get %s part info, ret=%d\n", 848 __func__, part_name, ret); 849 return ret; 850 } 851 852 /* Check dt table header */ 853 if (!strcmp(part_name, PART_RECOVERY)) 854 blk_offset = part_info.start + 855 (hdr->recovery_dtbo_offset / part_info.blksz); 856 else 857 blk_offset = part_info.start; 858 859 dt_hdr = memalign(ARCH_DMA_MINALIGN, part_info.blksz); 860 if (!dt_hdr) { 861 printf("%s: out of memory for dt header!\n", __func__); 862 return -ENOMEM; 863 } 864 865 ret = blk_dread(dev_desc, blk_offset, 1, dt_hdr); 866 if (ret != 1) { 867 printf("%s: failed to read dt table header\n", 868 __func__); 869 goto out1; 870 } 871 872 if (!android_dt_check_header((ulong)dt_hdr)) { 873 printf("%s: Error: invalid dt table header: 0x%x\n", 874 __func__, dt_hdr->magic); 875 ret = -EINVAL; 876 goto out1; 877 } 878 879 #ifdef DEBUG 880 android_dt_print_contents((ulong)dt_hdr); 881 #endif 882 883 blk_cnt = DIV_ROUND_UP(fdt32_to_cpu(dt_hdr->total_size), 884 part_info.blksz); 885 /* Read all DT Image */ 886 buf = memalign(ARCH_DMA_MINALIGN, part_info.blksz * blk_cnt); 887 if (!buf) { 888 printf("%s: out of memory for %s part!\n", __func__, part_name); 889 ret = -ENOMEM; 890 goto out1; 891 } 892 893 ret = blk_dread(dev_desc, blk_offset, blk_cnt, buf); 894 if (ret != blk_cnt) { 895 printf("%s: failed to read dtbo, blk_cnt=%d, ret=%d\n", 896 __func__, blk_cnt, ret); 897 goto out2; 898 } 899 900 e_idx = board_select_fdt_index((ulong)buf); 901 if (e_idx < 0) { 902 printf("%s: failed to select board fdt index\n", __func__); 903 ret = -EINVAL; 904 goto out2; 905 } 906 907 ret = android_dt_get_fdt_by_index((ulong)buf, e_idx, &e_addr, &e_size); 908 if (!ret) { 909 printf("%s: failed to get fdt, index=%d\n", __func__, e_idx); 910 ret = -EINVAL; 911 goto out2; 912 } 913 914 if (fdt_dtbo) 915 *fdt_dtbo = e_addr; 916 if (index) 917 *index = e_idx; 918 919 free(dt_hdr); 920 debug("ANDROID: Loading dt entry to 0x%lx size 0x%x idx %d from \"%s\" part\n", 921 e_addr, e_size, e_idx, part_name); 922 923 return 0; 924 925 out2: 926 free(buf); 927 out1: 928 free(dt_hdr); 929 930 return ret; 931 } 932 933 int android_fdt_overlay_apply(void *fdt_addr) 934 { 935 struct andr_img_hdr *hdr; 936 struct blk_desc *dev_desc; 937 const char *part_name; 938 disk_partition_t part_info; 939 char buf[32] = {0}; 940 u32 blk_cnt; 941 ulong fdt_dtbo = -1; 942 int boot_mode; 943 int index = -1; 944 int ret; 945 946 boot_mode = rockchip_get_boot_mode(); 947 #ifdef CONFIG_ANDROID_AB 948 if (boot_mode == BOOT_MODE_RECOVERY) 949 boot_mode = BOOT_MODE_NORMAL; 950 #endif 951 if (boot_mode == BOOT_MODE_RECOVERY) 952 part_name = PART_RECOVERY; 953 else 954 part_name = PART_BOOT; 955 956 /* Get partition info */ 957 dev_desc = rockchip_get_bootdev(); 958 if (!dev_desc) { 959 printf("%s: dev_desc is NULL!\n", __func__); 960 return -ENODEV; 961 } 962 963 ret = part_get_info_by_name(dev_desc, part_name, &part_info); 964 if (ret < 0) { 965 printf("%s: failed to get %s part info, ret=%d\n", 966 __func__, part_name, ret); 967 return ret; 968 } 969 970 blk_cnt = DIV_ROUND_UP(sizeof(*hdr), part_info.blksz); 971 hdr = memalign(ARCH_DMA_MINALIGN, part_info.blksz * blk_cnt); 972 if (!hdr) { 973 printf("%s: out of memory!\n", __func__); 974 return -ENOMEM; 975 } 976 977 ret = blk_dread(dev_desc, part_info.start, blk_cnt, hdr); 978 if (ret != blk_cnt) { 979 printf("%s: failed to read %s hdr!\n", __func__, part_name); 980 goto out; 981 } 982 983 #ifdef DEBUG 984 android_print_contents(hdr); 985 #endif 986 987 if (android_image_check_header(hdr)) 988 return -EINVAL; 989 990 /* Check header version */ 991 if (!hdr->header_version) { 992 printf("Android header version 0\n"); 993 ret = -EINVAL; 994 goto out; 995 } 996 997 ret = android_get_dtbo(&fdt_dtbo, (void *)hdr, &index, boot_mode); 998 if (!ret) { 999 phys_size_t fdt_size; 1000 /* Must incease size before overlay */ 1001 fdt_size = fdt_totalsize((void *)fdt_addr) + 1002 fdt_totalsize((void *)fdt_dtbo); 1003 if (sysmem_free((phys_addr_t)fdt_addr)) 1004 goto out; 1005 1006 if (!sysmem_alloc_base(MEMBLK_ID_FDT_DTBO, 1007 (phys_addr_t)fdt_addr, 1008 fdt_size + CONFIG_SYS_FDT_PAD)) 1009 goto out; 1010 fdt_increase_size(fdt_addr, fdt_totalsize((void *)fdt_dtbo)); 1011 ret = fdt_overlay_apply(fdt_addr, (void *)fdt_dtbo); 1012 if (!ret) { 1013 snprintf(buf, 32, "%s%d", "androidboot.dtbo_idx=", index); 1014 env_update("bootargs", buf); 1015 printf("ANDROID: fdt overlay OK\n"); 1016 } else { 1017 printf("ANDROID: fdt overlay failed, ret=%d\n", ret); 1018 } 1019 } 1020 1021 out: 1022 free(hdr); 1023 1024 return 0; 1025 } 1026 #endif 1027 1028 static int load_android_image(struct blk_desc *dev_desc, 1029 char *boot_partname, 1030 unsigned long *load_address) 1031 { 1032 disk_partition_t boot_part; 1033 int ret, part_num; 1034 1035 part_num = part_get_info_by_name(dev_desc, boot_partname, &boot_part); 1036 if (part_num < 0) { 1037 printf("%s: Can't find part: %s\n", __func__, boot_partname); 1038 return -1; 1039 } 1040 debug("ANDROID: Loading kernel from \"%s\", partition %d.\n", 1041 boot_part.name, part_num); 1042 1043 ret = android_image_load(dev_desc, &boot_part, *load_address, -1UL); 1044 if (ret < 0) { 1045 debug("%s: %s part load fail, ret=%d\n", 1046 __func__, boot_part.name, ret); 1047 return ret; 1048 } 1049 *load_address = ret; 1050 1051 return 0; 1052 } 1053 1054 int android_bootloader_boot_flow(struct blk_desc *dev_desc, 1055 unsigned long load_address) 1056 { 1057 enum android_boot_mode mode = ANDROID_BOOT_MODE_NORMAL; 1058 disk_partition_t misc_part_info; 1059 int part_num; 1060 int ret; 1061 char *command_line; 1062 char slot_suffix[3] = {0}; 1063 const char *mode_cmdline = NULL; 1064 char *boot_partname = ANDROID_PARTITION_BOOT; 1065 ulong fdt_addr; 1066 1067 /* 1068 * 1. Load MISC partition and determine the boot mode 1069 * clear its value for the next boot if needed. 1070 */ 1071 part_num = part_get_info_by_name(dev_desc, ANDROID_PARTITION_MISC, 1072 &misc_part_info); 1073 if (part_num < 0) { 1074 printf("Could not find misc partition\n"); 1075 } else { 1076 #ifdef CONFIG_ANDROID_KEYMASTER_CA 1077 /* load attestation key from misc partition. */ 1078 load_attestation_key(dev_desc, &misc_part_info); 1079 #endif 1080 1081 mode = android_bootloader_load_and_clear_mode(dev_desc, 1082 &misc_part_info); 1083 #ifdef CONFIG_RKIMG_BOOTLOADER 1084 if (mode == ANDROID_BOOT_MODE_NORMAL) { 1085 if (rockchip_get_boot_mode() == BOOT_MODE_RECOVERY) 1086 mode = ANDROID_BOOT_MODE_RECOVERY; 1087 } 1088 #endif 1089 } 1090 1091 printf("ANDROID: reboot reason: \"%s\"\n", android_boot_mode_str(mode)); 1092 1093 /* Get current slot_suffix */ 1094 if (decrease_tries_if_android_ab(slot_suffix)) 1095 return -1; 1096 1097 switch (mode) { 1098 case ANDROID_BOOT_MODE_NORMAL: 1099 /* In normal mode, we load the kernel from "boot" but append 1100 * "skip_initramfs" to the cmdline to make it ignore the 1101 * recovery initramfs in the boot partition. 1102 */ 1103 #ifdef CONFIG_ANDROID_AB 1104 /* In A/B, the recovery image is built as boot.img, containing the 1105 * recovery's ramdisk. Previously, bootloader used the skip_initramfs 1106 * kernel command line parameter to decide which mode to boot into. 1107 * For Android >=10 and with dynamic partition support, the bootloader 1108 * MUST NOT pass skip_initramfs to the kernel command-line. 1109 * Instead, bootloader should pass androidboot.force_normal_boot=1 1110 * and then Android's first-stage init in ramdisk 1111 * will skip recovery and boot normal Android. 1112 */ 1113 if (is_support_dynamic_partition(dev_desc)) { 1114 mode_cmdline = "androidboot.force_normal_boot=1"; 1115 } else { 1116 mode_cmdline = "skip_initramfs"; 1117 } 1118 #endif 1119 break; 1120 case ANDROID_BOOT_MODE_RECOVERY: 1121 /* In recovery mode we still boot the kernel from "boot" but 1122 * don't skip the initramfs so it boots to recovery. 1123 */ 1124 #ifndef CONFIG_ANDROID_AB 1125 boot_partname = ANDROID_PARTITION_RECOVERY; 1126 #endif 1127 break; 1128 case ANDROID_BOOT_MODE_BOOTLOADER: 1129 /* Bootloader mode enters fastboot. If this operation fails we 1130 * simply return since we can't recover from this situation by 1131 * switching to another slot. 1132 */ 1133 return android_bootloader_boot_bootloader(); 1134 } 1135 1136 #ifdef CONFIG_ANDROID_AVB 1137 uint8_t vboot_flag = 0; 1138 disk_partition_t vbmeta_part_info; 1139 1140 if (trusty_read_vbootkey_enable_flag(&vboot_flag)) { 1141 printf("Can't read vboot flag\n"); 1142 return -1; 1143 } 1144 1145 if (vboot_flag) { 1146 printf("Vboot=1, SecureBoot enabled, AVB verify\n"); 1147 if (android_slot_verify(boot_partname, &load_address, 1148 slot_suffix)) { 1149 printf("AVB verify failed\n"); 1150 reset_cpu_if_android_ab(); 1151 1152 return -1; 1153 } 1154 } else { 1155 part_num = part_get_info_by_name(dev_desc, 1156 ANDROID_PARTITION_VBMETA, 1157 &vbmeta_part_info); 1158 if (part_num < 0) { 1159 printf("Not AVB images, AVB skip\n"); 1160 env_update("bootargs", 1161 "androidboot.verifiedbootstate=orange"); 1162 if (load_android_image(dev_desc, boot_partname, 1163 &load_address)) { 1164 printf("Android image load failed\n"); 1165 return -1; 1166 } 1167 } else { 1168 printf("Vboot=0, AVB images, AVB verify\n"); 1169 if (android_slot_verify(boot_partname, &load_address, 1170 slot_suffix)) { 1171 printf("AVB verify failed\n"); 1172 reset_cpu_if_android_ab(); 1173 1174 return -1; 1175 } 1176 } 1177 } 1178 #else 1179 /* 1180 * 2. Load the boot/recovery from the desired "boot" partition. 1181 * Determine if this is an AOSP image. 1182 */ 1183 if (load_android_image(dev_desc, boot_partname, &load_address)) { 1184 printf("Android image load failed\n"); 1185 return -1; 1186 } 1187 #endif 1188 update_root_uuid_if_android_ab(); 1189 1190 /* Set Android root variables. */ 1191 env_set_ulong("android_root_devnum", dev_desc->devnum); 1192 env_set("android_slotsufix", slot_suffix); 1193 1194 #ifdef CONFIG_FASTBOOT_OEM_UNLOCK 1195 /* read oem unlock status and attach to bootargs */ 1196 uint8_t unlock = 0; 1197 TEEC_Result result; 1198 char oem_unlock[OEM_UNLOCK_ARG_SIZE] = {0}; 1199 result = trusty_read_oem_unlock(&unlock); 1200 if (result) { 1201 printf("read oem unlock status with error : 0x%x\n", result); 1202 } else { 1203 snprintf(oem_unlock, OEM_UNLOCK_ARG_SIZE, "androidboot.oem_unlocked=%d", unlock); 1204 env_update("bootargs", oem_unlock); 1205 } 1206 #endif 1207 1208 /* Assemble the command line */ 1209 command_line = android_assemble_cmdline(slot_suffix, mode_cmdline); 1210 env_update("bootargs", command_line); 1211 1212 debug("ANDROID: bootargs: \"%s\"\n", command_line); 1213 1214 #ifdef CONFIG_SUPPORT_OEM_DTB 1215 if (android_bootloader_get_fdt(ANDROID_PARTITION_OEM, 1216 ANDROID_ARG_FDT_FILENAME)) { 1217 printf("Can not get the fdt data from oem!\n"); 1218 } 1219 #else 1220 ret = android_image_get_fdt((void *)load_address, &fdt_addr); 1221 if (!ret) 1222 env_set_hex("fdt_addr", fdt_addr); 1223 #endif 1224 #ifdef CONFIG_OPTEE_CLIENT 1225 if (trusty_notify_optee_uboot_end()) 1226 printf("Close optee client failed!\n"); 1227 #endif 1228 android_bootloader_boot_kernel(load_address); 1229 1230 /* TODO: If the kernel doesn't boot mark the selected slot as bad. */ 1231 return -1; 1232 } 1233 1234 int android_avb_boot_flow(unsigned long kernel_address) 1235 { 1236 struct blk_desc *dev_desc; 1237 disk_partition_t boot_part_info; 1238 int ret; 1239 1240 dev_desc = rockchip_get_bootdev(); 1241 if (!dev_desc) { 1242 printf("%s: dev_desc is NULL!\n", __func__); 1243 return -1; 1244 } 1245 1246 /* Load the kernel from the desired "boot" partition. */ 1247 ret = part_get_info_by_name(dev_desc, ANDROID_PARTITION_BOOT, 1248 &boot_part_info); 1249 if (ret < 0) { 1250 printf("%s: failed to get boot part\n", __func__); 1251 return ret; 1252 } 1253 1254 ret = android_image_load(dev_desc, &boot_part_info, 1255 kernel_address, -1UL); 1256 if (ret < 0) { 1257 printf("Android avb boot failed, error %d.\n", ret); 1258 return ret; 1259 } 1260 1261 android_bootloader_boot_kernel(kernel_address); 1262 1263 /* TODO: If the kernel doesn't boot mark the selected slot as bad. */ 1264 return -1; 1265 } 1266 1267 int android_boot_flow(unsigned long kernel_address) 1268 { 1269 struct blk_desc *dev_desc; 1270 disk_partition_t boot_part_info; 1271 int ret; 1272 1273 dev_desc = rockchip_get_bootdev(); 1274 if (!dev_desc) { 1275 printf("%s: dev_desc is NULL!\n", __func__); 1276 return -1; 1277 } 1278 /* Load the kernel from the desired "boot" partition. */ 1279 ret = part_get_info_by_name(dev_desc, ANDROID_PARTITION_BOOT, 1280 &boot_part_info); 1281 if (ret < 0) { 1282 printf("%s: failed to get boot part\n", __func__); 1283 return ret; 1284 } 1285 1286 ret = android_image_load(dev_desc, &boot_part_info, kernel_address, 1287 -1UL); 1288 if (ret < 0) 1289 return ret; 1290 1291 android_bootloader_boot_kernel(kernel_address); 1292 1293 /* TODO: If the kernel doesn't boot mark the selected slot as bad. */ 1294 return -1; 1295 } 1296