1 /* 2 * Copyright (c) 2020-2023, Intel Corporation. All rights reserved. 3 * Copyright (c) 2024, Altera Corporation. All rights reserved. 4 * 5 * SPDX-License-Identifier: BSD-3-Clause 6 */ 7 8 #ifndef SOCFPGA_VAB_H 9 #define SOCFPGA_VAB_H 10 11 12 #include <stdlib.h> 13 #include "socfpga_fcs.h" 14 15 16 /* Macros */ 17 #define IS_BYTE_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) 18 #define BYTE_ALIGN(x, a) __ALIGN_MASK((x), (typeof(x))(a)-1) 19 #define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask)) 20 #define VAB_CERT_HEADER_SIZE sizeof(struct fcs_hps_vab_certificate_header) 21 #define VAB_CERT_MAGIC_OFFSET offsetof(struct fcs_hps_vab_certificate_header, d) 22 #define VAB_CERT_FIT_SHA384_OFFSET offsetof(struct fcs_hps_vab_certificate_data, fcs_sha384[0]) 23 #define SDM_CERT_MAGIC_NUM 0x25D04E7F 24 #define CHUNKSZ_PER_WD_RESET (256 * 1024) 25 #define SHA384_SUM_LEN 48 26 #define SHA384_DER_LEN 19 27 #define SHA512_SUM_LEN 64 28 #define SHA512_DER_LEN 19 29 #define SHA512_BLOCK_SIZE 128 30 #define e0(x) (ror64(x, 28) ^ ror64(x, 34) ^ ror64(x, 39)) 31 #define e1(x) (ror64(x, 14) ^ ror64(x, 18) ^ ror64(x, 41)) 32 #define s0(x) (ror64(x, 1) ^ ror64(x, 8) ^ (x >> 7)) 33 #define s1(x) (ror64(x, 19) ^ ror64(x, 61) ^ (x >> 6)) 34 35 #define __cpu_to_le64(x) ((__force __le64)(__u64)(x)) 36 37 #define PUT_UINT64_BE(n, b, i) { \ 38 (b)[(i)] = (unsigned char) ((n) >> 56); \ 39 (b)[(i) + 1] = (unsigned char) ((n) >> 48); \ 40 (b)[(i) + 2] = (unsigned char) ((n) >> 40); \ 41 (b)[(i) + 3] = (unsigned char) ((n) >> 32); \ 42 (b)[(i) + 4] = (unsigned char) ((n) >> 24); \ 43 (b)[(i) + 5] = (unsigned char) ((n) >> 16); \ 44 (b)[(i) + 6] = (unsigned char) ((n) >> 8); \ 45 (b)[(i) + 7] = (unsigned char) ((n)); \ 46 } 47 48 /* SHA related return Macro */ 49 #define ENOVABCERT 1 /* VAB certificate not available */ 50 #define EIMGERR 2 /* Image format/size not valid */ 51 #define ETIMEOUT 3 /* Execution timeout */ 52 #define EPROCESS 4 /* Process error */ 53 #define EKEYREJECTED 5/* Key was rejected by service */ 54 55 /* SHA384 certificate ID */ 56 #define SHA384_H0 0xcbbb9d5dc1059ed8ULL 57 #define SHA384_H1 0x629a292a367cd507ULL 58 #define SHA384_H2 0x9159015a3070dd17ULL 59 #define SHA384_H3 0x152fecd8f70e5939ULL 60 #define SHA384_H4 0x67332667ffc00b31ULL 61 #define SHA384_H5 0x8eb44a8768581511ULL 62 #define SHA384_H6 0xdb0c2e0d64f98fa7ULL 63 #define SHA384_H7 0x47b5481dbefa4fa4ULL 64 65 #define GET_UINT64_BE(n, b, i) { \ 66 (n) = ((unsigned long long) (b)[(i)] << 56) \ 67 | ((unsigned long long) (b)[(i) + 1] << 48) \ 68 | ((unsigned long long) (b)[(i) + 2] << 40) \ 69 | ((unsigned long long) (b)[(i) + 3] << 32) \ 70 | ((unsigned long long) (b)[(i) + 4] << 24) \ 71 | ((unsigned long long) (b)[(i) + 5] << 16) \ 72 | ((unsigned long long) (b)[(i) + 6] << 8) \ 73 | ((unsigned long long) (b)[(i) + 7]); \ 74 } 75 76 static const uint64_t sha512_K[80] = { 77 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL, 78 0xe9b5dba58189dbbcULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL, 79 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 0xd807aa98a3030242ULL, 80 0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL, 81 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL, 82 0xc19bf174cf692694ULL, 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL, 83 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 0x2de92c6f592b0275ULL, 84 0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL, 85 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL, 86 0xbf597fc7beef0ee4ULL, 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL, 87 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 0x27b70a8546d22ffcULL, 88 0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL, 89 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL, 90 0x92722c851482353bULL, 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL, 91 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 0xd192e819d6ef5218ULL, 92 0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL, 93 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL, 94 0x34b0bcb5e19b48a8ULL, 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL, 95 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 0x748f82ee5defb2fcULL, 96 0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL, 97 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL, 98 0xc67178f2e372532bULL, 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL, 99 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 0x06f067aa72176fbaULL, 100 0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL, 101 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL, 102 0x431d67c49c100d4cULL, 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL, 103 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL, 104 }; 105 106 static inline uint64_t ror64(uint64_t word, unsigned int shift) 107 { 108 return (word >> (shift & 63)) | (word << ((-shift) & 63)); 109 } 110 111 struct fcs_hps_vab_certificate_data { 112 uint32_t vab_cert_magic_num; /* offset 0x10 */ 113 uint32_t flags; 114 uint8_t rsvd0_1[8]; 115 uint8_t fcs_sha384[FCS_SHA384_WORD_SIZE]; /* offset 0x20 */ 116 }; 117 118 struct fcs_hps_vab_certificate_header { 119 uint32_t cert_magic_num; /* offset 0 */ 120 uint32_t cert_data_sz; 121 uint32_t cert_ver; 122 uint32_t cert_type; 123 struct fcs_hps_vab_certificate_data d; /* offset 0x10 */ 124 /* keychain starts at offset 0x50 */ 125 }; 126 127 typedef struct { 128 uint64_t state[SHA512_SUM_LEN / 8]; 129 uint64_t count[2]; 130 uint8_t buf[SHA512_BLOCK_SIZE]; 131 } sha512_context; 132 133 static inline uint64_t Ch(uint64_t x, uint64_t y, uint64_t z) 134 { 135 return z ^ (x & (y ^ z)); 136 } 137 138 static inline uint64_t Maj(uint64_t x, uint64_t y, uint64_t z) 139 { 140 return (x & y) | (z & (x | y)); 141 } 142 143 static inline void LOAD_OP(int I, uint64_t *W, const uint8_t *input) 144 { 145 GET_UINT64_BE(W[I], input, I*8); 146 } 147 148 static inline void BLEND_OP(int I, uint64_t *W) 149 { 150 W[I & 15] += s1(W[(I-2) & 15]) + W[(I-7) & 15] + s0(W[(I-15) & 15]); 151 } 152 153 154 /* Function Definitions */ 155 static size_t get_img_size(uint8_t *img_buf, size_t img_buf_sz); 156 int socfpga_vendor_authentication(void **p_image, size_t *p_size); 157 static uint32_t get_unaligned_le32(const void *p); 158 void sha384_csum_wd(const unsigned char *input, unsigned int ilen, 159 unsigned char *output, unsigned int chunk_sz); 160 161 #endif 162