1 /* 2 * Copyright (c) 2020 HiSilicon (Shanghai) Technologies CO., LIMITED. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef __LOAD_CRYPTO_H__ 17 #define __LOAD_CRYPTO_H__ 18 #ifdef CONFIG_FLASH_ENCRYPT_SUPPORT 19 #include <hi_boot_rom.h> 20 21 #define crypto_mem_free(sz) \ 22 do { \ 23 if ((sz) != HI_NULL) { \ 24 boot_free(sz); \ 25 } \ 26 (sz) = HI_NULL; \ 27 } while (0) 28 29 #define IV_BYTE_LENGTH 16 30 #define ROOTKEY_IV_BYTE_LENGTH 32 31 32 #define DIE_ID_BYTE_LENGTH 24 33 34 #define KEY_BYTE_LENGTH 32 35 36 #define SHA_256_LENGTH 32 37 38 #define ROOT_SALT_LENGTH 32 39 40 #define CRYPTO_CNT_NUM 6 41 42 #define CRYPTO_KERNEL_LENGTH 4096 43 44 #define KERNEL_RAM_ADDR 0xD8400 45 46 #define KDF_ITERATION_CNT 1024 47 48 #define MIN_CRYPTO_BLOCK_SIZE 16 49 50 #define HI_NV_FTM_STARTUP_CFG_ID 0x3 51 #define HI_NV_FTM_KERNELA_WORK_ID 0x4 52 #define HI_NV_FTM_BACKUP_KERNELA_WORK_ID 0x5 53 54 typedef enum { 55 CRYPTO_WORKKEY_KERNEL_A = 0x1, 56 CRYPTO_WORKKEY_KERNEL_A_BACKUP = 0x2, 57 CRYPTO_WORKKEY_KERNEL_A_BOTH = 0x3, 58 } crypto_workkey_partition; 59 60 typedef struct { 61 uintptr_t addr_start; /* boot start address */ 62 hi_u16 mode; /* upgrade mode */ 63 hi_u8 file_type; /* file type:boot or code+nv */ 64 hi_u8 refresh_nv; /* refresh nv when the flag bit 0x55 is read */ 65 hi_u8 reset_cnt; /* number of restarts in upgrade mode */ 66 hi_u8 cnt_max; /* the maximum number of restarts (default value : 3) */ 67 hi_u16 reserved1; 68 uintptr_t addr_write; /* write kernel upgrade file address */ 69 hi_u32 reserved2; /* 2: reserved bytes */ 70 } hi_nv_ftm_startup_cfg; 71 72 typedef struct { 73 hi_u8 root_salt[ROOT_SALT_LENGTH]; 74 hi_u8 iv_nv[IV_BYTE_LENGTH]; 75 hi_u8 iv_content[IV_BYTE_LENGTH]; 76 hi_u8 work_text[KEY_BYTE_LENGTH]; 77 hi_u8 content_sh256[SHA_256_LENGTH]; 78 } hi_flash_crypto_content; 79 80 hi_u32 crypto_check_encrypt(hi_void); 81 hi_u32 crypto_encrypt_factory_image(uintptr_t file_addr); 82 83 #endif 84 #endif 85