diff options
Diffstat (limited to 'firmware/lib20/api.c')
| -rw-r--r-- | firmware/lib20/api.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/firmware/lib20/api.c b/firmware/lib20/api.c index bee93285..7c253457 100644 --- a/firmware/lib20/api.c +++ b/firmware/lib20/api.c @@ -129,7 +129,8 @@ int vb2api_init_hash(struct vb2_context *ctx, uint32_t tag, uint32_t *size) return vb2_digest_init(dc, key.hash_alg); } -int vb2api_check_hash(struct vb2_context *ctx) +int vb2api_check_hash_get_digest(struct vb2_context *ctx, void *digest_out, + uint32_t digest_out_size) { struct vb2_shared_data *sd = vb2_get_sd(ctx); struct vb2_digest_context *dc = (struct vb2_digest_context *) @@ -199,5 +200,16 @@ int vb2api_check_hash(struct vb2_context *ctx) if (rv) vb2_fail(ctx, VB2_RECOVERY_FW_BODY, rv); + if (digest_out != NULL) { + if (digest_out_size < digest_size) + return VB2_ERROR_API_CHECK_DIGEST_SIZE; + memcpy(digest_out, digest, digest_size); + } + return rv; } + +int vb2api_check_hash(struct vb2_context *ctx) +{ + return vb2api_check_hash_get_digest(ctx, NULL, 0); +} |