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d278c6cb15
This adds support for the i.MX9 ROMAPI, allowing boot in a more device agnostic and portable manner. The ROMAPI "natively" allows to: - Query the boot device for information. - Copy data from the boot device to RAM. An extra functionality was added to ROMAPI to calculate offsets of sequential AHAB containers. The AHAB functionality is built on top of raw ELE primitives and allows to: - Authenticate a container image. - Release the authenticated container. Signed-off-by: Theodore Karatapanis <tkaratapanis@census-labs.com>
130 lines
3.7 KiB
C
130 lines
3.7 KiB
C
/****************************************************************************
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* include/imx_container.h
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_IMX_CONTAINER_H
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#define __INCLUDE_IMX_CONTAINER_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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#include <stdbool.h>
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#include <nuttx/compiler.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define IV_MAX_LEN 32
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#define HASH_MAX_LEN 64
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#define CONTAINER_HDR_ALIGNMENT 0x400
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#define CONTAINER_HDR_EMMC_OFFSET 0
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#define CONTAINER_HDR_MMCSD_OFFSET SZ_32K
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#define CONTAINER_HDR_QSPI_OFFSET SZ_4K
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#define CONTAINER_HDR_NAND_OFFSET SZ_128M
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#define CONTAINER_HDR_TAG 0x87
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#define CONTAINER_HDR_VERSION 0
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* i.MX AHAB container header. */
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begin_packed_struct struct container_hdr
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{
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uint8_t version;
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uint8_t length_lsb;
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uint8_t length_msb;
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uint8_t tag;
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uint32_t flags;
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uint16_t sw_version;
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uint8_t fuse_version;
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uint8_t num_images;
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uint16_t sig_blk_offset;
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uint16_t reserved;
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} end_packed_struct;
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/* i.MX AHAB container, image header. */
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begin_packed_struct struct boot_img_hdr
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{
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uint32_t offset;
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uint32_t size;
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uint64_t dst;
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uint64_t entry;
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uint32_t hab_flags;
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uint32_t meta;
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uint8_t hash[HASH_MAX_LEN];
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uint8_t iv[IV_MAX_LEN];
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} end_packed_struct;
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/* i.MX AHAB container, signature block header. */
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begin_packed_struct struct signature_block_hdr
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{
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uint8_t version;
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uint8_t length_lsb;
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uint8_t length_msb;
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uint8_t tag;
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uint16_t srk_table_offset;
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uint16_t cert_offset;
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uint16_t blob_offset;
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uint16_t signature_offset;
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uint32_t reserved;
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} end_packed_struct;
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/* Header used for the generation of an encrypted key blob from ELE. */
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begin_packed_struct struct generate_key_blob_hdr
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{
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uint8_t version;
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uint8_t length_lsb;
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uint8_t length_msb;
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uint8_t tag;
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uint8_t flags;
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uint8_t size;
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uint8_t algorithm;
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uint8_t mode;
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} end_packed_struct;
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/****************************************************************************
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* Name: imx_valid_container_hdr
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*
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* Description:
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* Simple validation of the container header.
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*
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* Returned Value:
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* true for Success, otherwise false
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*
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****************************************************************************/
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static inline bool imx_valid_container_hdr(struct container_hdr *container)
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{
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return container->tag == CONTAINER_HDR_TAG &&
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container->version == CONTAINER_HDR_VERSION;
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}
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#endif /* __INCLUDE_IMX_CONTAINER_H */
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