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