1 /* 2 * Copyright 2017-2021 NXP 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 156