86 	struct crypto_shash *tfm = ima_shash_tfm;  in ima_alloc_tfm()  local
93 		tfm = crypto_alloc_shash(hash_algo_name[algo], 0, 0);  in ima_alloc_tfm()
94 		if (IS_ERR(tfm)) {  in ima_alloc_tfm()
95 			rc = PTR_ERR(tfm);  in ima_alloc_tfm()
100 	return tfm;  in ima_alloc_tfm()
103 static void ima_free_tfm(struct crypto_shash *tfm)  in ima_free_tfm()  argument
105 	if (tfm != ima_shash_tfm)  in ima_free_tfm()
106 		crypto_free_shash(tfm);  in ima_free_tfm()
173 	struct crypto_ahash *tfm = ima_ahash_tfm;  in ima_alloc_atfm()  local
179 	if (algo != ima_hash_algo || !tfm) {  in ima_alloc_atfm()
180 		tfm = crypto_alloc_ahash(hash_algo_name[algo], 0, 0);  in ima_alloc_atfm()
181 		if (!IS_ERR(tfm)) {  in ima_alloc_atfm()
183 				ima_ahash_tfm = tfm;  in ima_alloc_atfm()
185 			rc = PTR_ERR(tfm);  in ima_alloc_atfm()
190 	return tfm;  in ima_alloc_atfm()
193 static void ima_free_atfm(struct crypto_ahash *tfm)  in ima_free_atfm()  argument
195 	if (tfm != ima_ahash_tfm)  in ima_free_atfm()
196 		crypto_free_ahash(tfm);  in ima_free_atfm()
229 				   struct crypto_ahash *tfm)  in ima_calc_file_hash_atfm()  argument
239 	hash->length = crypto_ahash_digestsize(tfm);  in ima_calc_file_hash_atfm()
241 	req = ahash_request_alloc(tfm, GFP_KERNEL);  in ima_calc_file_hash_atfm()
339 	struct crypto_ahash *tfm;  in ima_calc_file_ahash()  local
342 	tfm = ima_alloc_atfm(hash->algo);  in ima_calc_file_ahash()
343 	if (IS_ERR(tfm))  in ima_calc_file_ahash()
344 		return PTR_ERR(tfm);  in ima_calc_file_ahash()
346 	rc = ima_calc_file_hash_atfm(file, hash, tfm);  in ima_calc_file_ahash()
348 	ima_free_atfm(tfm);  in ima_calc_file_ahash()
355 				  struct crypto_shash *tfm)  in ima_calc_file_hash_tfm()  argument
360 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_file_hash_tfm()
362 	shash->tfm = tfm;  in ima_calc_file_hash_tfm()
365 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_file_hash_tfm()
412 	struct crypto_shash *tfm;  in ima_calc_file_shash()  local
415 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_file_shash()
416 	if (IS_ERR(tfm))  in ima_calc_file_shash()
417 		return PTR_ERR(tfm);  in ima_calc_file_shash()
419 	rc = ima_calc_file_hash_tfm(file, hash, tfm);  in ima_calc_file_shash()
421 	ima_free_tfm(tfm);  in ima_calc_file_shash()
462 					 struct crypto_shash *tfm)  in ima_calc_field_array_hash_tfm()  argument
464 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_field_array_hash_tfm()
467 	shash->tfm = tfm;  in ima_calc_field_array_hash_tfm()
470 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_field_array_hash_tfm()
507 	struct crypto_shash *tfm;  in ima_calc_field_array_hash()  local
510 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_field_array_hash()
511 	if (IS_ERR(tfm))  in ima_calc_field_array_hash()
512 		return PTR_ERR(tfm);  in ima_calc_field_array_hash()
515 					   hash, tfm);  in ima_calc_field_array_hash()
517 	ima_free_tfm(tfm);  in ima_calc_field_array_hash()
535 					      struct crypto_shash *tfm)  in ima_calc_boot_aggregate_tfm()  argument
539 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_boot_aggregate_tfm()
541 	shash->tfm = tfm;  in ima_calc_boot_aggregate_tfm()
561 	struct crypto_shash *tfm;  in ima_calc_boot_aggregate()  local
564 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_boot_aggregate()
565 	if (IS_ERR(tfm))  in ima_calc_boot_aggregate()
566 		return PTR_ERR(tfm);  in ima_calc_boot_aggregate()
568 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_boot_aggregate()
569 	rc = ima_calc_boot_aggregate_tfm(hash->digest, tfm);  in ima_calc_boot_aggregate()
571 	ima_free_tfm(tfm);  in ima_calc_boot_aggregate()