13  *	Calculates md5/sha1 file hash, template hash, boot-aggreate hash
26 #include <crypto/hash.h>
76 	pr_info("Allocated hash algorithm: %s\n",  in ima_init_crypto()
208 				   struct ima_digest_data *hash,  in ima_calc_file_hash_atfm()  argument
219 	hash->length = crypto_ahash_digestsize(tfm);  in ima_calc_file_hash_atfm()
310 		ahash_request_set_crypt(req, NULL, hash->digest, 0);  in ima_calc_file_hash_atfm()
318 static int ima_calc_file_ahash(struct file *file, struct ima_digest_data *hash)  in ima_calc_file_ahash()  argument
323 	tfm = ima_alloc_atfm(hash->algo);  in ima_calc_file_ahash()
327 	rc = ima_calc_file_hash_atfm(file, hash, tfm);  in ima_calc_file_ahash()
335 				  struct ima_digest_data *hash,  in ima_calc_file_hash_tfm()  argument
346 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_file_hash_tfm()
380 		rc = crypto_shash_final(shash, hash->digest);  in ima_calc_file_hash_tfm()
384 static int ima_calc_file_shash(struct file *file, struct ima_digest_data *hash)  in ima_calc_file_shash()  argument
389 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_file_shash()
393 	rc = ima_calc_file_hash_tfm(file, hash, tfm);  in ima_calc_file_shash()
401  * ima_calc_file_hash - calculate file hash
403  * Asynchronous hash (ahash) allows using HW acceleration for calculating
404  * a hash. ahash performance varies for different data sizes on different
410  * shash for the hash calculation.  If ahash fails, it falls back to using
413 int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash)  in ima_calc_file_hash()  argument
425 		hash->length = hash_digest_size[ima_hash_algo];  in ima_calc_file_hash()
426 		hash->algo = ima_hash_algo;  in ima_calc_file_hash()
453 		rc = ima_calc_file_ahash(f, hash);  in ima_calc_file_hash()
458 	rc = ima_calc_file_shash(f, hash);  in ima_calc_file_hash()
468  * Calculate the hash of template data
473 					 struct ima_digest_data *hash,  in ima_calc_field_array_hash_tfm()  argument
482 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_field_array_hash_tfm()
512 		rc = crypto_shash_final(shash, hash->digest);  in ima_calc_field_array_hash_tfm()
519 			      struct ima_digest_data *hash)  in ima_calc_field_array_hash()  argument
524 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_field_array_hash()
529 					   hash, tfm);  in ima_calc_field_array_hash()
537 				  struct ima_digest_data *hash,  in calc_buffer_ahash_atfm()  argument
545 	hash->length = crypto_ahash_digestsize(tfm);  in calc_buffer_ahash_atfm()
568 		ahash_request_set_crypt(req, NULL, hash->digest, 0);  in calc_buffer_ahash_atfm()
577 			     struct ima_digest_data *hash)  in calc_buffer_ahash()  argument
582 	tfm = ima_alloc_atfm(hash->algo);  in calc_buffer_ahash()
586 	rc = calc_buffer_ahash_atfm(buf, len, hash, tfm);  in calc_buffer_ahash()
594 				struct ima_digest_data *hash,  in calc_buffer_shash_tfm()  argument
604 	hash->length = crypto_shash_digestsize(tfm);  in calc_buffer_shash_tfm()
620 		rc = crypto_shash_final(shash, hash->digest);  in calc_buffer_shash_tfm()
625 			     struct ima_digest_data *hash)  in calc_buffer_shash()  argument
630 	tfm = ima_alloc_tfm(hash->algo);  in calc_buffer_shash()
634 	rc = calc_buffer_shash_tfm(buf, len, hash, tfm);  in calc_buffer_shash()
641 			 struct ima_digest_data *hash)  in ima_calc_buffer_hash()  argument
646 		rc = calc_buffer_ahash(buf, len, hash);  in ima_calc_buffer_hash()
651 	return calc_buffer_shash(buf, len, hash);  in ima_calc_buffer_hash()
664  * Calculate the boot aggregate hash
693 int ima_calc_boot_aggregate(struct ima_digest_data *hash)  in ima_calc_boot_aggregate()  argument
698 	tfm = ima_alloc_tfm(hash->algo);  in ima_calc_boot_aggregate()
702 	hash->length = crypto_shash_digestsize(tfm);  in ima_calc_boot_aggregate()
703 	rc = ima_calc_boot_aggregate_tfm(hash->digest, tfm);  in ima_calc_boot_aggregate()