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Diffstat (limited to 'include/fsl_validate.h')
| -rw-r--r-- | include/fsl_validate.h | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/include/fsl_validate.h b/include/fsl_validate.h new file mode 100644 index 0000000000..c4605349a6 --- /dev/null +++ b/include/fsl_validate.h @@ -0,0 +1,199 @@ +/* + * Copyright 2015 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _FSL_VALIDATE_H_ +#define _FSL_VALIDATE_H_ + +#include <fsl_sec.h> +#include <fsl_sec_mon.h> +#include <command.h> +#include <linux/types.h> + +#define WORD_SIZE 4 + +/* Minimum and maximum size of RSA signature length in bits */ +#define KEY_SIZE 4096 +#define KEY_SIZE_BYTES (KEY_SIZE/8) +#define KEY_SIZE_WORDS (KEY_SIZE_BYTES/(WORD_SIZE)) + +extern struct jobring jr; + +#ifdef CONFIG_KEY_REVOCATION +/* Srk table and key revocation check */ +#define SRK_FLAG 0x01 +#define UNREVOCABLE_KEY 4 +#define ALIGN_REVOC_KEY 3 +#define MAX_KEY_ENTRIES 4 +#endif + +/* Barker code size in bytes */ +#define ESBC_BARKER_LEN 4 /* barker code length in ESBC uboot client */ + /* header */ + +/* No-error return values */ +#define ESBC_VALID_HDR 0 /* header is valid */ + +/* Maximum number of SG entries allowed */ +#define MAX_SG_ENTRIES 8 + +/* + * ESBC uboot client header structure. + * The struct contain the following fields + * barker code + * public key offset + * pub key length + * signature offset + * length of the signature + * ptr to SG table + * no of entries in SG table + * esbc ptr + * size of esbc + * esbc entry point + * Scatter gather flag + * UID flag + * FSL UID + * OEM UID + * Here, pub key is modulus concatenated with exponent + * of equal length + */ +struct fsl_secboot_img_hdr { + u8 barker[ESBC_BARKER_LEN]; /* barker code */ + union { + u32 pkey; /* public key offset */ +#ifdef CONFIG_KEY_REVOCATION + u32 srk_tbl_off; +#endif + }; + + union { + u32 key_len; /* pub key length in bytes */ +#ifdef CONFIG_KEY_REVOCATION + struct { + u32 srk_table_flag:8; + u32 srk_sel:8; + u32 num_srk:16; + } len_kr; +#endif + }; + + u32 psign; /* signature offset */ + u32 sign_len; /* length of the signature in bytes */ + union { + struct fsl_secboot_sg_table *psgtable; /* ptr to SG table */ + u8 *pimg; /* ptr to ESBC client image */ + }; + union { + u32 sg_entries; /* no of entries in SG table */ + u32 img_size; /* ESBC client image size in bytes */ + }; + ulong img_start; /* ESBC client entry point */ + u32 sg_flag; /* Scatter gather flag */ + u32 uid_flag; + u32 fsl_uid_0; + u32 oem_uid_0; + u32 reserved1[2]; + u32 fsl_uid_1; + u32 oem_uid_1; + u32 reserved2[2]; + u32 ie_flag; + u32 ie_key_sel; +}; + +#if defined(CONFIG_FSL_ISBC_KEY_EXT) +struct ie_key_table { + u32 key_len; + u8 pkey[2 * KEY_SIZE_BYTES]; +}; + +struct ie_key_info { + uint32_t key_revok; + uint32_t num_keys; + struct ie_key_table ie_key_tbl[32]; +}; +#endif + +#ifdef CONFIG_KEY_REVOCATION +struct srk_table { + u32 key_len; + u8 pkey[2 * KEY_SIZE_BYTES]; +}; +#endif + +/* + * SG table. + */ +#if defined(CONFIG_FSL_TRUST_ARCH_v1) && defined(CONFIG_FSL_CORENET) +/* + * This struct contains the following fields + * length of the segment + * source address + */ +struct fsl_secboot_sg_table { + u32 len; /* length of the segment in bytes */ + ulong src_addr; /* ptr to the data segment */ +}; +#else +/* + * This struct contains the following fields + * length of the segment + * Destination Target ID + * source address + * destination address + */ +struct fsl_secboot_sg_table { + u32 len; + u32 trgt_id; + ulong src_addr; + ulong dst_addr; +}; +#endif + +/* + * ESBC private structure. + * Private structure used by ESBC to store following fields + * ESBC client key + * ESBC client key hash + * ESBC client Signature + * Encoded hash recovered from signature + * Encoded hash of ESBC client header plus ESBC client image + */ +struct fsl_secboot_img_priv { + uint32_t hdr_location; + ulong ie_addr; + u32 key_len; + struct fsl_secboot_img_hdr hdr; + + u8 img_key[2 * KEY_SIZE_BYTES]; /* ESBC client key */ + u8 img_key_hash[32]; /* ESBC client key hash */ + +#ifdef CONFIG_KEY_REVOCATION + struct srk_table srk_tbl[MAX_KEY_ENTRIES]; +#endif + u8 img_sign[KEY_SIZE_BYTES]; /* ESBC client signature */ + + u8 img_encoded_hash[KEY_SIZE_BYTES]; /* EM wrt RSA PKCSv1.5 */ + /* Includes hash recovered after + * signature verification + */ + + u8 img_encoded_hash_second[KEY_SIZE_BYTES];/* EM' wrt RSA PKCSv1.5 */ + /* Includes hash of + * ESBC client header plus + * ESBC client image + */ + + struct fsl_secboot_sg_table sgtbl[MAX_SG_ENTRIES]; /* SG table */ + u32 ehdrloc; /* ESBC client location */ +}; + +int fsl_secboot_validate(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]); +int fsl_secboot_blob_encap(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]); +int fsl_secboot_blob_decap(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]); + +#endif |