diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/image.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/image.h b/include/image.h index fe2361a667e..7b16284257a 100644 --- a/include/image.h +++ b/include/image.h @@ -1427,6 +1427,24 @@ int fit_add_verification_data(const char *keydir, const char *keyfile, const char *cmdname, const char *algo_name, struct image_summary *summary); +#ifdef USE_HOSTCC +/** + * fit_verity_get_expanded() - look up the cached dm-verity expanded buffer + * + * After mkimage has run veritysetup on a FILESYSTEM image, the original + * data concatenated with the Merkle hash tree is cached in memory keyed + * by image name. fit_extract_data() retrieves it to write the external + * data section without having to re-read a temporary file from disk. + * + * @name: image unit name (FDT node name under /images) + * @data: output -- pointer to cached buffer (do NOT free; lifetime + * ends when mkimage exits) + * @size: output -- size of @data in bytes + * Return: 0 if a cache entry exists for @name, -ENOENT otherwise + */ +int fit_verity_get_expanded(const char *name, const void **data, size_t *size); +#endif /* USE_HOSTCC */ + /** * fit_image_verify_with_data() - Verify an image with given data * |