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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#if !defined(AVB_INSIDE_LIBAVB_ATX_H) && !defined(AVB_COMPILATION)
#error \
"Never include this file directly, include libavb_atx/libavb_atx.h instead."
#endif
#ifndef AVB_ATX_TYPES_H_
#define AVB_ATX_TYPES_H_
#include <libavb/libavb.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Size in bytes of an Android Things product ID. */
#define AVB_ATX_PRODUCT_ID_SIZE 16
/* Size in bytes of an Android Things unlock challenge. */
#define AVB_ATX_UNLOCK_CHALLENGE_SIZE 16
/* Size in bytes of a serialized public key with a 4096-bit modulus. */
#define AVB_ATX_PUBLIC_KEY_SIZE (sizeof(AvbRSAPublicKeyHeader) + 1024)
/* Data structure of Android Things permanent attributes. */
typedef struct AvbAtxPermanentAttributes {
uint32_t version;
uint8_t product_root_public_key[AVB_ATX_PUBLIC_KEY_SIZE];
uint8_t product_id[AVB_ATX_PRODUCT_ID_SIZE];
} AVB_ATTR_PACKED AvbAtxPermanentAttributes;
/* Data structure of signed fields in an Android Things certificate. */
typedef struct AvbAtxCertificateSignedData {
uint32_t version;
uint8_t public_key[AVB_ATX_PUBLIC_KEY_SIZE];
uint8_t subject[AVB_SHA256_DIGEST_SIZE];
uint8_t usage[AVB_SHA256_DIGEST_SIZE];
uint64_t key_version;
} AVB_ATTR_PACKED AvbAtxCertificateSignedData;
/* Data structure of an Android Things certificate. */
typedef struct AvbAtxCertificate {
AvbAtxCertificateSignedData signed_data;
uint8_t signature[AVB_RSA4096_NUM_BYTES];
} AVB_ATTR_PACKED AvbAtxCertificate;
/* Data structure of Android Things public key metadata in vbmeta. */
typedef struct AvbAtxPublicKeyMetadata {
uint32_t version;
AvbAtxCertificate product_intermediate_key_certificate;
AvbAtxCertificate product_signing_key_certificate;
} AVB_ATTR_PACKED AvbAtxPublicKeyMetadata;
/* Data structure of an Android Things unlock challenge. */
typedef struct AvbAtxUnlockChallenge {
uint32_t version;
uint8_t product_id_hash[AVB_SHA256_DIGEST_SIZE];
uint8_t challenge[AVB_ATX_UNLOCK_CHALLENGE_SIZE];
} AVB_ATTR_PACKED AvbAtxUnlockChallenge;
/* Data structure of an Android Things unlock credential. */
typedef struct AvbAtxUnlockCredential {
uint32_t version;
AvbAtxCertificate product_intermediate_key_certificate;
AvbAtxCertificate product_unlock_key_certificate;
uint8_t challenge_signature[AVB_RSA4096_NUM_BYTES];
} AVB_ATTR_PACKED AvbAtxUnlockCredential;
#ifdef __cplusplus
}
#endif
#endif /* AVB_ATX_TYPES_H_ */