| // SPDX-License-Identifier: MIT |
| * Copyright (C) 2016 The Android Open Source Project |
| bool avb_footer_validate_and_byteswap(const AvbFooter* src, AvbFooter* dest) { |
| avb_memcpy(dest, src, sizeof(AvbFooter)); |
| dest->version_major = avb_be32toh(dest->version_major); |
| dest->version_minor = avb_be32toh(dest->version_minor); |
| dest->original_image_size = avb_be64toh(dest->original_image_size); |
| dest->vbmeta_offset = avb_be64toh(dest->vbmeta_offset); |
| dest->vbmeta_size = avb_be64toh(dest->vbmeta_size); |
| /* Check that magic is correct. */ |
| if (avb_safe_memcmp(dest->magic, AVB_FOOTER_MAGIC, AVB_FOOTER_MAGIC_LEN) != |
| avb_error("Footer magic is incorrect.\n"); |
| /* Ensure we don't attempt to access any fields if the footer major |
| * version is not supported. |
| if (dest->version_major > AVB_FOOTER_VERSION_MAJOR) { |
| avb_error("No support for footer version.\n"); |