include/fsl_validate.h

   1 /*
   2  * Copyright 2015 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #ifndef _FSL_VALIDATE_H_
   8 #define _FSL_VALIDATE_H_
   9
  10 #include <fsl_sec.h>
  11 #include <fsl_sec_mon.h>
  12 #include <command.h>
  13 #include <linux/types.h>
  14
  15 #define WORD_SIZE 4
  16
  17 /* Minimum and maximum size of RSA signature length in bits */
  18 #define KEY_SIZE       4096
  19 #define KEY_SIZE_BYTES (KEY_SIZE/8)
  20 #define KEY_SIZE_WORDS (KEY_SIZE_BYTES/(WORD_SIZE))
  21
  22 extern struct jobring jr;
  23
  24 /* Barker code size in bytes */
  25 #define ESBC_BARKER_LEN 4       /* barker code length in ESBC uboot client */
  26                                 /* header */
  27
  28 /* No-error return values */
  29 #define ESBC_VALID_HDR  0       /* header is valid */
  30
  31 /* Maximum number of SG entries allowed */
  32 #define MAX_SG_ENTRIES  8
  33
  34 /* Different Header Struct for LS-CH3 */
  35 #ifdef CONFIG_ESBC_HDR_LS
  36 struct fsl_secboot_img_hdr {
  37         u8 barker[ESBC_BARKER_LEN];     /* barker code */
  38         u32 srk_tbl_off;
  39         struct {
  40                 u8 num_srk;
  41                 u8 srk_sel;
  42                 u8 reserve;
  43                 u8 ie_flag;
  44         } len_kr;
  45
  46         u32 uid_flag;
  47
  48         u32 psign;              /* signature offset */
  49         u32 sign_len;           /* length of the signature in bytes */
  50
  51         u64 pimg64;             /* 64 bit pointer to ESBC Image */
  52         u32 img_size;           /* ESBC client image size in bytes */
  53         u32 ie_key_sel;
  54
  55         u32 fsl_uid_0;
  56         u32 fsl_uid_1;
  57         u32 oem_uid_0;
  58         u32 oem_uid_1;
  59         u32 oem_uid_2;
  60         u32 oem_uid_3;
  61         u32 oem_uid_4;
  62         u32 reserved1[3];
  63 };
  64
  65 #ifdef CONFIG_KEY_REVOCATION
  66 /* Srk table and key revocation check */
  67 #define UNREVOCABLE_KEY 8
  68 #define ALIGN_REVOC_KEY 7
  69 #define MAX_KEY_ENTRIES 8
  70 #endif
  71
  72
  73 #else /* CONFIG_ESBC_HDR_LS */
  74
  75 /*
  76  * ESBC uboot client header structure.
  77  * The struct contain the following fields
  78  * barker code
  79  * public key offset
  80  * pub key length
  81  * signature offset
  82  * length of the signature
  83  * ptr to SG table
  84  * no of entries in SG table
  85  * esbc ptr
  86  * size of esbc
  87  * esbc entry point
  88  * Scatter gather flag
  89  * UID flag
  90  * FSL UID
  91  * OEM UID
  92  * Here, pub key is modulus concatenated with exponent
  93  * of equal length
  94  */
  95 struct fsl_secboot_img_hdr {
  96         u8 barker[ESBC_BARKER_LEN];     /* barker code */
  97         union {
  98                 u32 pkey;               /* public key offset */
  99 #ifdef CONFIG_KEY_REVOCATION
 100                 u32 srk_tbl_off;
 101 #endif
 102         };
 103
 104         union {
 105                 u32 key_len;            /* pub key length in bytes */
 106 #ifdef CONFIG_KEY_REVOCATION
 107                 struct {
 108                         u32 srk_table_flag:8;
 109                         u32 srk_sel:8;
 110                         u32 num_srk:16;
 111                 } len_kr;
 112 #endif
 113         };
 114
 115         u32 psign;              /* signature offset */
 116         u32 sign_len;           /* length of the signature in bytes */
 117         union {
 118                 u32 psgtable;   /* ptr to SG table */
 119 #ifndef CONFIG_ESBC_ADDR_64BIT
 120                 u32 pimg;       /* ptr to ESBC client image */
 121 #endif
 122         };
 123         union {
 124                 u32 sg_entries; /* no of entries in SG table */
 125                 u32 img_size;   /* ESBC client image size in bytes */
 126         };
 127         u32 img_start;          /* ESBC client entry point */
 128         u32 sg_flag;            /* Scatter gather flag */
 129         u32 uid_flag;
 130         u32 fsl_uid_0;
 131         u32 oem_uid_0;
 132         u32 reserved1[2];
 133         u32 fsl_uid_1;
 134         u32 oem_uid_1;
 135         union {
 136                 u32 reserved2[2];
 137 #ifdef CONFIG_ESBC_ADDR_64BIT
 138                 u64 pimg64;     /* 64 bit pointer to ESBC Image */
 139 #endif
 140         };
 141         u32 ie_flag;
 142         u32 ie_key_sel;
 143 };
 144
 145 #ifdef CONFIG_KEY_REVOCATION
 146 /* Srk table and key revocation check */
 147 #define SRK_FLAG        0x01
 148 #define UNREVOCABLE_KEY 4
 149 #define ALIGN_REVOC_KEY 3
 150 #define MAX_KEY_ENTRIES 4
 151 #endif
 152
 153 #endif /* CONFIG_ESBC_HDR_LS */
 154
 155
 156 #if defined(CONFIG_FSL_ISBC_KEY_EXT)
 157 struct ie_key_table {
 158         u32 key_len;
 159         u8 pkey[2 * KEY_SIZE_BYTES];
 160 };
 161
 162 struct ie_key_info {
 163         uint32_t key_revok;
 164         uint32_t num_keys;
 165         struct ie_key_table ie_key_tbl[32];
 166 };
 167 #endif
 168
 169 #ifdef CONFIG_KEY_REVOCATION
 170 struct srk_table {
 171         u32 key_len;
 172         u8 pkey[2 * KEY_SIZE_BYTES];
 173 };
 174 #endif
 175
 176 /*
 177  * SG table.
 178  */
 179 #if defined(CONFIG_FSL_TRUST_ARCH_v1) && defined(CONFIG_FSL_CORENET)
 180 /*
 181  * This struct contains the following fields
 182  * length of the segment
 183  * source address
 184  */
 185 struct fsl_secboot_sg_table {
 186         u32 len;                /* length of the segment in bytes */
 187         u32 src_addr;           /* ptr to the data segment */
 188 };
 189 #else
 190 /*
 191  * This struct contains the following fields
 192  * length of the segment
 193  * Destination Target ID
 194  * source address
 195  * destination address
 196  */
 197 struct fsl_secboot_sg_table {
 198         u32 len;
 199         u32 trgt_id;
 200         u32 src_addr;
 201         u32 dst_addr;
 202 };
 203 #endif
 204
 205 /*
 206  * ESBC private structure.
 207  * Private structure used by ESBC to store following fields
 208  * ESBC client key
 209  * ESBC client key hash
 210  * ESBC client Signature
 211  * Encoded hash recovered from signature
 212  * Encoded hash of ESBC client header plus ESBC client image
 213  */
 214 struct fsl_secboot_img_priv {
 215         uint32_t hdr_location;
 216         u32 ie_addr;
 217         u32 key_len;
 218         struct fsl_secboot_img_hdr hdr;
 219
 220         u8 img_key[2 * KEY_SIZE_BYTES]; /* ESBC client key */
 221         u8 img_key_hash[32];    /* ESBC client key hash */
 222
 223 #ifdef CONFIG_KEY_REVOCATION
 224         struct srk_table srk_tbl[MAX_KEY_ENTRIES];
 225 #endif
 226         u8 img_sign[KEY_SIZE_BYTES];            /* ESBC client signature */
 227
 228         u8 img_encoded_hash[KEY_SIZE_BYTES];    /* EM wrt RSA PKCSv1.5  */
 229                                                 /* Includes hash recovered after
 230                                                  * signature verification
 231                                                  */
 232
 233         u8 img_encoded_hash_second[KEY_SIZE_BYTES];/* EM' wrt RSA PKCSv1.5 */
 234                                                 /* Includes hash of
 235                                                  * ESBC client header plus
 236                                                  * ESBC client image
 237                                                  */
 238
 239         struct fsl_secboot_sg_table sgtbl[MAX_SG_ENTRIES];      /* SG table */
 240         uintptr_t ehdrloc;      /* ESBC Header location */
 241         uintptr_t *img_addr_ptr;        /* ESBC Image Location */
 242         uint32_t img_size;      /* ESBC Image Size */
 243 };
 244
 245 int do_esbc_halt(cmd_tbl_t *cmdtp, int flag, int argc,
 246                                 char * const argv[]);
 247
 248 int fsl_secboot_validate(uintptr_t haddr, char *arg_hash_str,
 249         uintptr_t *img_addr_ptr);
 250 int fsl_secboot_blob_encap(cmd_tbl_t *cmdtp, int flag, int argc,
 251         char * const argv[]);
 252 int fsl_secboot_blob_decap(cmd_tbl_t *cmdtp, int flag, int argc,
 253         char * const argv[]);
 254
 255 int fsl_check_boot_mode_secure(void);
 256 int fsl_setenv_chain_of_trust(void);
 257 #endif