83 	struct crypto_shash *tfm = ima_shash_tfm;  in ima_alloc_tfm()  local
90 		tfm = crypto_alloc_shash(hash_algo_name[algo], 0, 0);  in ima_alloc_tfm()
91 		if (IS_ERR(tfm)) {  in ima_alloc_tfm()
92 			rc = PTR_ERR(tfm);  in ima_alloc_tfm()
97 	return tfm;  in ima_alloc_tfm()
100 static void ima_free_tfm(struct crypto_shash *tfm)  in ima_free_tfm()  argument
102 	if (tfm != ima_shash_tfm)  in ima_free_tfm()
103 		crypto_free_shash(tfm);  in ima_free_tfm()
170 	struct crypto_ahash *tfm = ima_ahash_tfm;  in ima_alloc_atfm()  local
176 	if (algo != ima_hash_algo || !tfm) {  in ima_alloc_atfm()
177 		tfm = crypto_alloc_ahash(hash_algo_name[algo], 0, 0);  in ima_alloc_atfm()
178 		if (!IS_ERR(tfm)) {  in ima_alloc_atfm()
180 				ima_ahash_tfm = tfm;  in ima_alloc_atfm()
182 			rc = PTR_ERR(tfm);  in ima_alloc_atfm()
187 	return tfm;  in ima_alloc_atfm()
190 static void ima_free_atfm(struct crypto_ahash *tfm)  in ima_free_atfm()  argument
192 	if (tfm != ima_ahash_tfm)  in ima_free_atfm()
193 		crypto_free_ahash(tfm);  in ima_free_atfm()
209 				   struct crypto_ahash *tfm)  in ima_calc_file_hash_atfm()  argument
219 	hash->length = crypto_ahash_digestsize(tfm);  in ima_calc_file_hash_atfm()
221 	req = ahash_request_alloc(tfm, GFP_KERNEL);  in ima_calc_file_hash_atfm()
319 	struct crypto_ahash *tfm;  in ima_calc_file_ahash()  local
322 	tfm = ima_alloc_atfm(hash->algo);  in ima_calc_file_ahash()
323 	if (IS_ERR(tfm))  in ima_calc_file_ahash()
324 		return PTR_ERR(tfm);  in ima_calc_file_ahash()
326 	rc = ima_calc_file_hash_atfm(file, hash, tfm);  in ima_calc_file_ahash()
328 	ima_free_atfm(tfm);  in ima_calc_file_ahash()
335 				  struct crypto_shash *tfm)  in ima_calc_file_hash_tfm()  argument
340 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_file_hash_tfm()
342 	shash->tfm = tfm;  in ima_calc_file_hash_tfm()
345 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_file_hash_tfm()
392 	struct crypto_shash *tfm;  in ima_calc_file_shash()  local
395 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_file_shash()
396 	if (IS_ERR(tfm))  in ima_calc_file_shash()
397 		return PTR_ERR(tfm);  in ima_calc_file_shash()
399 	rc = ima_calc_file_hash_tfm(file, hash, tfm);  in ima_calc_file_shash()
401 	ima_free_tfm(tfm);  in ima_calc_file_shash()
452 					 struct crypto_shash *tfm)  in ima_calc_field_array_hash_tfm()  argument
454 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_field_array_hash_tfm()
457 	shash->tfm = tfm;  in ima_calc_field_array_hash_tfm()
460 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_field_array_hash_tfm()
499 	struct crypto_shash *tfm;  in ima_calc_field_array_hash()  local
502 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_field_array_hash()
503 	if (IS_ERR(tfm))  in ima_calc_field_array_hash()
504 		return PTR_ERR(tfm);  in ima_calc_field_array_hash()
507 					   hash, tfm);  in ima_calc_field_array_hash()
509 	ima_free_tfm(tfm);  in ima_calc_field_array_hash()
516 				  struct crypto_ahash *tfm)  in calc_buffer_ahash_atfm()  argument
523 	hash->length = crypto_ahash_digestsize(tfm);  in calc_buffer_ahash_atfm()
525 	req = ahash_request_alloc(tfm, GFP_KERNEL);  in calc_buffer_ahash_atfm()
557 	struct crypto_ahash *tfm;  in calc_buffer_ahash()  local
560 	tfm = ima_alloc_atfm(hash->algo);  in calc_buffer_ahash()
561 	if (IS_ERR(tfm))  in calc_buffer_ahash()
562 		return PTR_ERR(tfm);  in calc_buffer_ahash()
564 	rc = calc_buffer_ahash_atfm(buf, len, hash, tfm);  in calc_buffer_ahash()
566 	ima_free_atfm(tfm);  in calc_buffer_ahash()
573 				struct crypto_shash *tfm)  in calc_buffer_shash_tfm()  argument
575 	SHASH_DESC_ON_STACK(shash, tfm);  in calc_buffer_shash_tfm()
579 	shash->tfm = tfm;  in calc_buffer_shash_tfm()
582 	hash->length = crypto_shash_digestsize(tfm);  in calc_buffer_shash_tfm()
605 	struct crypto_shash *tfm;  in calc_buffer_shash()  local
608 	tfm = ima_alloc_tfm(hash->algo);  in calc_buffer_shash()
609 	if (IS_ERR(tfm))  in calc_buffer_shash()
610 		return PTR_ERR(tfm);  in calc_buffer_shash()
612 	rc = calc_buffer_shash_tfm(buf, len, hash, tfm);  in calc_buffer_shash()
614 	ima_free_tfm(tfm);  in calc_buffer_shash()
645 					      struct crypto_shash *tfm)  in ima_calc_boot_aggregate_tfm()  argument
649 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_boot_aggregate_tfm()
651 	shash->tfm = tfm;  in ima_calc_boot_aggregate_tfm()
671 	struct crypto_shash *tfm;  in ima_calc_boot_aggregate()  local
674 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_boot_aggregate()
675 	if (IS_ERR(tfm))  in ima_calc_boot_aggregate()
676 		return PTR_ERR(tfm);  in ima_calc_boot_aggregate()
678 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_boot_aggregate()
679 	rc = ima_calc_boot_aggregate_tfm(hash->digest, tfm);  in ima_calc_boot_aggregate()
681 	ima_free_tfm(tfm);  in ima_calc_boot_aggregate()