162 			       struct fsverity_descriptor *desc,  in compute_file_digest()  argument
165 	__le32 sig_size = desc->sig_size;  in compute_file_digest()
168 	desc->sig_size = 0;  in compute_file_digest()
169 	err = fsverity_hash_buffer(hash_alg, desc, sizeof(*desc), file_digest);  in compute_file_digest()
170 	desc->sig_size = sig_size;  in compute_file_digest()
181 					   struct fsverity_descriptor *desc)  in fsverity_create_info()  argument
192 					       desc->hash_algorithm,  in fsverity_create_info()
193 					       desc->log_blocksize,  in fsverity_create_info()
194 					       desc->salt, desc->salt_size);  in fsverity_create_info()
202 	memcpy(vi->root_hash, desc->root_hash, vi->tree_params.digest_size);  in fsverity_create_info()
204 	err = compute_file_digest(vi->tree_params.hash_alg, desc,  in fsverity_create_info()
211 	err = fsverity_verify_signature(vi, desc->signature,  in fsverity_create_info()
212 					le32_to_cpu(desc->sig_size));  in fsverity_create_info()
281 					 const struct fsverity_descriptor *desc,  in validate_fsverity_descriptor()  argument
284 	if (desc_size < sizeof(*desc)) {  in validate_fsverity_descriptor()
290 	if (desc->version != 1) {  in validate_fsverity_descriptor()
292 			     desc->version);  in validate_fsverity_descriptor()
296 	if (memchr_inv(desc->__reserved, 0, sizeof(desc->__reserved))) {  in validate_fsverity_descriptor()
301 	if (desc->salt_size > sizeof(desc->salt)) {  in validate_fsverity_descriptor()
302 		fsverity_err(inode, "Invalid salt_size: %u", desc->salt_size);  in validate_fsverity_descriptor()
306 	if (le64_to_cpu(desc->data_size) != inode->i_size) {  in validate_fsverity_descriptor()
309 			     le64_to_cpu(desc->data_size), inode->i_size);  in validate_fsverity_descriptor()
313 	if (le32_to_cpu(desc->sig_size) > desc_size - sizeof(*desc)) {  in validate_fsverity_descriptor()
329 	struct fsverity_descriptor *desc;  in fsverity_get_descriptor()  local
342 	desc = kmalloc(res, GFP_KERNEL);  in fsverity_get_descriptor()
343 	if (!desc)  in fsverity_get_descriptor()
345 	res = inode->i_sb->s_vop->get_verity_descriptor(inode, desc, res);  in fsverity_get_descriptor()
348 		kfree(desc);  in fsverity_get_descriptor()
352 	if (!validate_fsverity_descriptor(inode, desc, res)) {  in fsverity_get_descriptor()
353 		kfree(desc);  in fsverity_get_descriptor()
357 	*desc_ret = desc;  in fsverity_get_descriptor()
365 	struct fsverity_descriptor *desc;  in ensure_verity_info()  local
371 	err = fsverity_get_descriptor(inode, &desc);  in ensure_verity_info()
375 	vi = fsverity_create_info(inode, desc);  in ensure_verity_info()
384 	kfree(desc);  in ensure_verity_info()