Pankaj Gupta | 9247b40 | 2020-12-09 14:02:39 +0530 | [diff] [blame] | 1 | /* |
Pankaj Gupta | 7834b46 | 2021-03-25 15:15:52 +0530 | [diff] [blame] | 2 | * Copyright 2017-2021 NXP |
Pankaj Gupta | 9247b40 | 2020-12-09 14:02:39 +0530 | [diff] [blame] | 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #ifndef CSF_HDR_H |
| 9 | #define CSF_HDR_H |
| 10 | |
| 11 | #include "caam.h" |
| 12 | #include "hash.h" |
| 13 | #include "rsa.h" |
| 14 | |
| 15 | /* Barker code size in bytes */ |
| 16 | #define CSF_BARKER_LEN 4 /* barker code length in ESBC uboot client */ |
| 17 | /* header */ |
| 18 | |
| 19 | #ifdef CSF_HDR_CH3 |
| 20 | struct csf_hdr { |
| 21 | uint8_t barker[CSF_BARKER_LEN]; /* 0x00 Barker code */ |
| 22 | uint32_t srk_tbl_off; /* 0x04 SRK Table Offset */ |
| 23 | |
| 24 | struct { |
| 25 | uint8_t num_srk; /* 0x08 No. of keys */ |
| 26 | uint8_t srk_sel; /* Key no. to be used */ |
| 27 | uint8_t reserve; /* 0x0a rseerved */ |
| 28 | } len_kr; |
| 29 | uint8_t ie_flag; |
| 30 | |
| 31 | uint32_t uid_flag; |
| 32 | |
| 33 | uint32_t psign; /* 0x10 signature offset */ |
| 34 | uint32_t sign_len; /* 0x14 length of signature */ |
| 35 | |
| 36 | union { |
| 37 | struct { |
| 38 | uint32_t sg_table_offset; /* 0x18 SG Table Offset */ |
| 39 | uint32_t sg_entries; /* 0x1c no of entries in SG */ |
| 40 | } sg_isbc; |
| 41 | uint64_t img_addr; /* 64 bit pointer to ESBC Image */ |
| 42 | }; |
| 43 | |
| 44 | union { |
| 45 | struct { |
| 46 | uint32_t img_size; /* ESBC client img size in bytes */ |
| 47 | uint32_t ie_key_sel; |
| 48 | } img; |
| 49 | uint64_t entry_point; /* 0x20-0x24 ESBC entry point */ |
| 50 | }; |
| 51 | |
| 52 | uint32_t fsl_uid_0; /* 0x28 Freescale unique id 0 */ |
| 53 | uint32_t fsl_uid_1; /* 0x2c Freescale unique id 1 */ |
| 54 | uint32_t oem_uid_0; /* 0x30 OEM unique id 0 */ |
| 55 | uint32_t oem_uid_1; /* 0x34 OEM unique id 1 */ |
| 56 | uint32_t oem_uid_2; /* 0x38 OEM unique id 2 */ |
| 57 | uint32_t oem_uid_3; /* 0x3c OEM unique id 3 */ |
| 58 | uint32_t oem_uid_4; /* 0x40 OEM unique id 4 */ |
| 59 | |
| 60 | uint32_t reserved[3]; /* 0x44 - 0x4f */ |
| 61 | }; |
| 62 | |
| 63 | /* Srk table and key revocation check */ |
| 64 | #define UNREVOCABLE_KEY 8 |
| 65 | #define REVOC_KEY_ALIGN 7 |
| 66 | #define MAX_KEY_ENTRIES 8 |
| 67 | |
| 68 | #else |
| 69 | |
| 70 | /* CSF header for Chassis 2 */ |
| 71 | struct csf_hdr { |
| 72 | uint8_t barker[CSF_BARKER_LEN]; /* barker code */ |
| 73 | union { |
| 74 | uint32_t pkey; /* public key offset */ |
| 75 | uint32_t srk_tbl_off; |
| 76 | }; |
| 77 | |
| 78 | union { |
| 79 | uint32_t key_len; /* pub key length in bytes */ |
| 80 | struct { |
| 81 | uint32_t srk_table_flag:8; |
| 82 | uint32_t srk_sel:8; |
| 83 | uint32_t num_srk:16; |
| 84 | } len_kr; |
| 85 | }; |
| 86 | |
| 87 | uint32_t psign; /* signature offset */ |
| 88 | uint32_t sign_len; /* length of the signature in bytes */ |
| 89 | |
| 90 | /* SG Table used by ISBC header */ |
| 91 | union { |
| 92 | struct { |
| 93 | uint32_t sg_table_offset; /* 0x14 SG Table Offset */ |
| 94 | uint32_t sg_entries; /* no of entries in SG table */ |
| 95 | } sg_isbc; |
| 96 | struct { |
| 97 | uint32_t reserved1; /* Reserved field */ |
| 98 | uint32_t img_size; /* ESBC img size in bytes */ |
| 99 | } img; |
| 100 | }; |
| 101 | |
| 102 | uint32_t entry_point; /* ESBC client entry point */ |
| 103 | uint32_t reserved2; /* Scatter gather flag */ |
| 104 | uint32_t uid_flag; |
| 105 | uint32_t fsl_uid_0; |
| 106 | uint32_t oem_uid_0; |
| 107 | uint32_t reserved3[2]; |
| 108 | uint32_t fsl_uid_1; |
| 109 | uint32_t oem_uid_1; |
| 110 | |
| 111 | /* The entries below aren't present in ISBC header */ |
| 112 | uint64_t img_addr; /* 64 bit pointer to ESBC Image */ |
| 113 | uint32_t ie_flag; |
| 114 | uint32_t ie_key_sel; |
| 115 | }; |
| 116 | |
| 117 | /* Srk table and key revocation check */ |
| 118 | #define UNREVOCABLE_KEY 4 |
| 119 | #define REVOC_KEY_ALIGN 3 |
| 120 | #define MAX_KEY_ENTRIES 4 |
| 121 | |
| 122 | #endif |
| 123 | |
| 124 | struct srk_table { |
| 125 | uint32_t key_len; |
| 126 | uint8_t pkey[2 * RSA_4K_KEY_SZ_BYTES]; |
| 127 | }; |
| 128 | |
| 129 | /* |
| 130 | * This struct contains the following fields |
| 131 | * length of the segment |
| 132 | * Destination Target ID |
| 133 | * source address |
| 134 | * destination address |
| 135 | */ |
| 136 | struct sg_table { |
| 137 | uint32_t len; /* Length of Image */ |
| 138 | uint32_t res1; |
| 139 | union { |
| 140 | uint64_t src_addr; /* SRC Address of Image */ |
| 141 | struct { |
| 142 | uint32_t src_addr; |
| 143 | uint32_t dst_addr; |
| 144 | } img; |
| 145 | }; |
| 146 | }; |
| 147 | |
| 148 | int validate_esbc_header(void *img_hdr, void **img_key, uint32_t *key_len, |
| 149 | void **img_sign, uint32_t *sign_len, |
| 150 | enum sig_alg *algo); |
| 151 | |
| 152 | int calc_img_hash(struct csf_hdr *hdr, void *img_addr, uint32_t img_size, |
| 153 | uint8_t *img_hash, uint32_t *hash_len); |
| 154 | |
| 155 | #endif |