80 	struct crypto_shash *tfm = ima_shash_tfm;  in ima_alloc_tfm()  local
87 		tfm = crypto_alloc_shash(hash_algo_name[algo], 0, 0);  in ima_alloc_tfm()
88 		if (IS_ERR(tfm)) {  in ima_alloc_tfm()
89 			rc = PTR_ERR(tfm);  in ima_alloc_tfm()
94 	return tfm;  in ima_alloc_tfm()
97 static void ima_free_tfm(struct crypto_shash *tfm)  in ima_free_tfm()  argument
99 	if (tfm != ima_shash_tfm)  in ima_free_tfm()
100 		crypto_free_shash(tfm);  in ima_free_tfm()
167 	struct crypto_ahash *tfm = ima_ahash_tfm;  in ima_alloc_atfm()  local
173 	if (algo != ima_hash_algo || !tfm) {  in ima_alloc_atfm()
174 		tfm = crypto_alloc_ahash(hash_algo_name[algo], 0, 0);  in ima_alloc_atfm()
175 		if (!IS_ERR(tfm)) {  in ima_alloc_atfm()
177 				ima_ahash_tfm = tfm;  in ima_alloc_atfm()
179 			rc = PTR_ERR(tfm);  in ima_alloc_atfm()
184 	return tfm;  in ima_alloc_atfm()
187 static void ima_free_atfm(struct crypto_ahash *tfm)  in ima_free_atfm()  argument
189 	if (tfm != ima_ahash_tfm)  in ima_free_atfm()
190 		crypto_free_ahash(tfm);  in ima_free_atfm()
206 				   struct crypto_ahash *tfm)  in ima_calc_file_hash_atfm()  argument
216 	hash->length = crypto_ahash_digestsize(tfm);  in ima_calc_file_hash_atfm()
218 	req = ahash_request_alloc(tfm, GFP_KERNEL);  in ima_calc_file_hash_atfm()
317 	struct crypto_ahash *tfm;  in ima_calc_file_ahash()  local
320 	tfm = ima_alloc_atfm(hash->algo);  in ima_calc_file_ahash()
321 	if (IS_ERR(tfm))  in ima_calc_file_ahash()
322 		return PTR_ERR(tfm);  in ima_calc_file_ahash()
324 	rc = ima_calc_file_hash_atfm(file, hash, tfm);  in ima_calc_file_ahash()
326 	ima_free_atfm(tfm);  in ima_calc_file_ahash()
333 				  struct crypto_shash *tfm)  in ima_calc_file_hash_tfm()  argument
338 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_file_hash_tfm()
340 	shash->tfm = tfm;  in ima_calc_file_hash_tfm()
342 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_file_hash_tfm()
382 	struct crypto_shash *tfm;  in ima_calc_file_shash()  local
385 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_file_shash()
386 	if (IS_ERR(tfm))  in ima_calc_file_shash()
387 		return PTR_ERR(tfm);  in ima_calc_file_shash()
389 	rc = ima_calc_file_hash_tfm(file, hash, tfm);  in ima_calc_file_shash()
391 	ima_free_tfm(tfm);  in ima_calc_file_shash()
470 					 struct crypto_shash *tfm)  in ima_calc_field_array_hash_tfm()  argument
472 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_field_array_hash_tfm()
475 	shash->tfm = tfm;  in ima_calc_field_array_hash_tfm()
477 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_field_array_hash_tfm()
516 	struct crypto_shash *tfm;  in ima_calc_field_array_hash()  local
519 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_field_array_hash()
520 	if (IS_ERR(tfm))  in ima_calc_field_array_hash()
521 		return PTR_ERR(tfm);  in ima_calc_field_array_hash()
524 					   hash, tfm);  in ima_calc_field_array_hash()
526 	ima_free_tfm(tfm);  in ima_calc_field_array_hash()
533 				  struct crypto_ahash *tfm)  in calc_buffer_ahash_atfm()  argument
540 	hash->length = crypto_ahash_digestsize(tfm);  in calc_buffer_ahash_atfm()
542 	req = ahash_request_alloc(tfm, GFP_KERNEL);  in calc_buffer_ahash_atfm()
574 	struct crypto_ahash *tfm;  in calc_buffer_ahash()  local
577 	tfm = ima_alloc_atfm(hash->algo);  in calc_buffer_ahash()
578 	if (IS_ERR(tfm))  in calc_buffer_ahash()
579 		return PTR_ERR(tfm);  in calc_buffer_ahash()
581 	rc = calc_buffer_ahash_atfm(buf, len, hash, tfm);  in calc_buffer_ahash()
583 	ima_free_atfm(tfm);  in calc_buffer_ahash()
590 				struct crypto_shash *tfm)  in calc_buffer_shash_tfm()  argument
592 	SHASH_DESC_ON_STACK(shash, tfm);  in calc_buffer_shash_tfm()
596 	shash->tfm = tfm;  in calc_buffer_shash_tfm()
598 	hash->length = crypto_shash_digestsize(tfm);  in calc_buffer_shash_tfm()
621 	struct crypto_shash *tfm;  in calc_buffer_shash()  local
624 	tfm = ima_alloc_tfm(hash->algo);  in calc_buffer_shash()
625 	if (IS_ERR(tfm))  in calc_buffer_shash()
626 		return PTR_ERR(tfm);  in calc_buffer_shash()
628 	rc = calc_buffer_shash_tfm(buf, len, hash, tfm);  in calc_buffer_shash()
630 	ima_free_tfm(tfm);  in calc_buffer_shash()
661 					      struct crypto_shash *tfm)  in ima_calc_boot_aggregate_tfm()  argument
666 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_boot_aggregate_tfm()
668 	shash->tfm = tfm;  in ima_calc_boot_aggregate_tfm()
687 	struct crypto_shash *tfm;  in ima_calc_boot_aggregate()  local
690 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_boot_aggregate()
691 	if (IS_ERR(tfm))  in ima_calc_boot_aggregate()
692 		return PTR_ERR(tfm);  in ima_calc_boot_aggregate()
694 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_boot_aggregate()
695 	rc = ima_calc_boot_aggregate_tfm(hash->digest, tfm);  in ima_calc_boot_aggregate()
697 	ima_free_tfm(tfm);  in ima_calc_boot_aggregate()