88 	struct crypto_shash *tfm = ima_shash_tfm;  in ima_alloc_tfm()  local
95 		return tfm;  in ima_alloc_tfm()
98 		if (ima_algo_array[i].tfm && ima_algo_array[i].algo == algo)  in ima_alloc_tfm()
99 			return ima_algo_array[i].tfm;  in ima_alloc_tfm()
101 	tfm = crypto_alloc_shash(hash_algo_name[algo], 0, 0);  in ima_alloc_tfm()
102 	if (IS_ERR(tfm)) {  in ima_alloc_tfm()
103 		rc = PTR_ERR(tfm);  in ima_alloc_tfm()
107 	return tfm;  in ima_alloc_tfm()
157 			ima_algo_array[i].tfm = ima_shash_tfm;  in ima_init_crypto()
161 		ima_algo_array[i].tfm = ima_alloc_tfm(algo);  in ima_init_crypto()
162 		if (IS_ERR(ima_algo_array[i].tfm)) {  in ima_init_crypto()
164 				rc = PTR_ERR(ima_algo_array[i].tfm);  in ima_init_crypto()
165 				ima_algo_array[i].tfm = NULL;  in ima_init_crypto()
169 			ima_algo_array[i].tfm = NULL;  in ima_init_crypto()
175 			ima_algo_array[ima_sha1_idx].tfm = ima_shash_tfm;  in ima_init_crypto()
177 			ima_algo_array[ima_sha1_idx].tfm =  in ima_init_crypto()
179 			if (IS_ERR(ima_algo_array[ima_sha1_idx].tfm)) {  in ima_init_crypto()
180 				rc = PTR_ERR(ima_algo_array[ima_sha1_idx].tfm);  in ima_init_crypto()
190 		ima_algo_array[ima_hash_algo_idx].tfm = ima_shash_tfm;  in ima_init_crypto()
197 		if (!ima_algo_array[i].tfm ||  in ima_init_crypto()
198 		    ima_algo_array[i].tfm == ima_shash_tfm)  in ima_init_crypto()
201 		crypto_free_shash(ima_algo_array[i].tfm);  in ima_init_crypto()
209 static void ima_free_tfm(struct crypto_shash *tfm)  in ima_free_tfm()  argument
213 	if (tfm == ima_shash_tfm)  in ima_free_tfm()
217 		if (ima_algo_array[i].tfm == tfm)  in ima_free_tfm()
220 	crypto_free_shash(tfm);  in ima_free_tfm()
287 	struct crypto_ahash *tfm = ima_ahash_tfm;  in ima_alloc_atfm()  local
293 	if (algo != ima_hash_algo || !tfm) {  in ima_alloc_atfm()
294 		tfm = crypto_alloc_ahash(hash_algo_name[algo], 0, 0);  in ima_alloc_atfm()
295 		if (!IS_ERR(tfm)) {  in ima_alloc_atfm()
297 				ima_ahash_tfm = tfm;  in ima_alloc_atfm()
299 			rc = PTR_ERR(tfm);  in ima_alloc_atfm()
304 	return tfm;  in ima_alloc_atfm()
307 static void ima_free_atfm(struct crypto_ahash *tfm)  in ima_free_atfm()  argument
309 	if (tfm != ima_ahash_tfm)  in ima_free_atfm()
310 		crypto_free_ahash(tfm);  in ima_free_atfm()
326 				   struct crypto_ahash *tfm)  in ima_calc_file_hash_atfm()  argument
336 	hash->length = crypto_ahash_digestsize(tfm);  in ima_calc_file_hash_atfm()
338 	req = ahash_request_alloc(tfm, GFP_KERNEL);  in ima_calc_file_hash_atfm()
437 	struct crypto_ahash *tfm;  in ima_calc_file_ahash()  local
440 	tfm = ima_alloc_atfm(hash->algo);  in ima_calc_file_ahash()
441 	if (IS_ERR(tfm))  in ima_calc_file_ahash()
442 		return PTR_ERR(tfm);  in ima_calc_file_ahash()
444 	rc = ima_calc_file_hash_atfm(file, hash, tfm);  in ima_calc_file_ahash()
446 	ima_free_atfm(tfm);  in ima_calc_file_ahash()
453 				  struct crypto_shash *tfm)  in ima_calc_file_hash_tfm()  argument
458 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_file_hash_tfm()
460 	shash->tfm = tfm;  in ima_calc_file_hash_tfm()
462 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_file_hash_tfm()
504 	struct crypto_shash *tfm;  in ima_calc_file_shash()  local
507 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_file_shash()
508 	if (IS_ERR(tfm))  in ima_calc_file_shash()
509 		return PTR_ERR(tfm);  in ima_calc_file_shash()
511 	rc = ima_calc_file_hash_tfm(file, hash, tfm);  in ima_calc_file_shash()
513 	ima_free_tfm(tfm);  in ima_calc_file_shash()
582 	SHASH_DESC_ON_STACK(shash, ima_algo_array[tfm_idx].tfm);  in ima_calc_field_array_hash_tfm()
587 	shash->tfm = ima_algo_array[tfm_idx].tfm;  in ima_calc_field_array_hash_tfm()
644 		if (!ima_algo_array[i].tfm) {  in ima_calc_field_array_hash()
660 				  struct crypto_ahash *tfm)  in calc_buffer_ahash_atfm()  argument
667 	hash->length = crypto_ahash_digestsize(tfm);  in calc_buffer_ahash_atfm()
669 	req = ahash_request_alloc(tfm, GFP_KERNEL);  in calc_buffer_ahash_atfm()
701 	struct crypto_ahash *tfm;  in calc_buffer_ahash()  local
704 	tfm = ima_alloc_atfm(hash->algo);  in calc_buffer_ahash()
705 	if (IS_ERR(tfm))  in calc_buffer_ahash()
706 		return PTR_ERR(tfm);  in calc_buffer_ahash()
708 	rc = calc_buffer_ahash_atfm(buf, len, hash, tfm);  in calc_buffer_ahash()
710 	ima_free_atfm(tfm);  in calc_buffer_ahash()
717 				struct crypto_shash *tfm)  in calc_buffer_shash_tfm()  argument
719 	SHASH_DESC_ON_STACK(shash, tfm);  in calc_buffer_shash_tfm()
723 	shash->tfm = tfm;  in calc_buffer_shash_tfm()
725 	hash->length = crypto_shash_digestsize(tfm);  in calc_buffer_shash_tfm()
748 	struct crypto_shash *tfm;  in calc_buffer_shash()  local
751 	tfm = ima_alloc_tfm(hash->algo);  in calc_buffer_shash()
752 	if (IS_ERR(tfm))  in calc_buffer_shash()
753 		return PTR_ERR(tfm);  in calc_buffer_shash()
755 	rc = calc_buffer_shash_tfm(buf, len, hash, tfm);  in calc_buffer_shash()
757 	ima_free_tfm(tfm);  in calc_buffer_shash()
796 				       struct crypto_shash *tfm)  in ima_calc_boot_aggregate_tfm()  argument
801 	SHASH_DESC_ON_STACK(shash, tfm);  in ima_calc_boot_aggregate_tfm()
803 	shash->tfm = tfm;  in ima_calc_boot_aggregate_tfm()
817 					 crypto_shash_digestsize(tfm));  in ima_calc_boot_aggregate_tfm()
831 						crypto_shash_digestsize(tfm));  in ima_calc_boot_aggregate_tfm()
841 	struct crypto_shash *tfm;  in ima_calc_boot_aggregate()  local
866 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_boot_aggregate()
867 	if (IS_ERR(tfm))  in ima_calc_boot_aggregate()
868 		return PTR_ERR(tfm);  in ima_calc_boot_aggregate()
870 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_boot_aggregate()
872 	rc = ima_calc_boot_aggregate_tfm(hash->digest, alg_id, tfm);  in ima_calc_boot_aggregate()
874 	ima_free_tfm(tfm);  in ima_calc_boot_aggregate()