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fastboot: fix CRC32 chunk size checking

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genimage create android-sparse file with CRC32 chunk at end. When
U-Boot's fastboot receives this chunk it returns error message:
`Fail Bogus chunk size for chunk type Dont Care`

According to reference implementation of Android's sparse file format:

<https://android.googlesource.com/platform/system/core/+/refs/heads/main/
libsparse/output_file.cpp#513>

the chunk_header.total_sz is CHUNK_HEADER_LEN + 4 (CRC32 size).

Signed-off-by: Wojciech Nizinski <niziak@spox.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> # on vim3
Link: https://lore.kernel.org/r/20230925103714.4153612-1-niziak@spox.org
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
This commit is contained in:
Wojciech Nizinski 2023-09-25 12:37:15 +02:00 committed by Mattijs Korpershoek
parent cbba1b7766
commit 355aab94d1
1 changed files with 2 additions and 2 deletions
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4
lib/image-sparse.c
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@ -289,8 +289,8 @@ int write_sparse_image(struct sparse_storage *info,
case CHUNK_TYPE_CRC32:
if (chunk_header->total_sz !=
sparse_header->chunk_hdr_sz) {
info->mssg("Bogus chunk size for chunk type Dont Care",
sparse_header->chunk_hdr_sz + sizeof(uint32_t)) {
info->mssg("Bogus chunk size for chunk type CRC32",
response);
return -1;
}