diff options
Diffstat (limited to 'crypto/crypto_null.c')
| -rw-r--r-- | crypto/crypto_null.c | 141 |
1 files changed, 67 insertions, 74 deletions
diff --git a/crypto/crypto_null.c b/crypto/crypto_null.c index ff7b3de1bcf..1dc54bb95a8 100644 --- a/crypto/crypto_null.c +++ b/crypto/crypto_null.c @@ -1,11 +1,11 @@ -/* +/* * Cryptographic API. * * Null algorithms, aka Much Ado About Nothing. * * These are needed for IPsec, and may be useful in general for * testing & debugging. - * + * * The null cipher is compliant with RFC2410. * * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> @@ -17,17 +17,14 @@ * */ +#include <crypto/null.h> +#include <crypto/internal/hash.h> #include <crypto/internal/skcipher.h> #include <linux/init.h> #include <linux/module.h> #include <linux/mm.h> #include <linux/string.h> -#define NULL_KEY_SIZE 0 -#define NULL_BLOCK_SIZE 1 -#define NULL_DIGEST_SIZE 0 -#define NULL_IV_SIZE 0 - static int null_compress(struct crypto_tfm *tfm, const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen) { @@ -38,15 +35,31 @@ static int null_compress(struct crypto_tfm *tfm, const u8 *src, return 0; } -static void null_init(struct crypto_tfm *tfm) -{ } +static int null_init(struct shash_desc *desc) +{ + return 0; +} -static void null_update(struct crypto_tfm *tfm, const u8 *data, - unsigned int len) -{ } +static int null_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return 0; +} -static void null_final(struct crypto_tfm *tfm, u8 *out) -{ } +static int null_final(struct shash_desc *desc, u8 *out) +{ + return 0; +} + +static int null_digest(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return 0; +} + +static int null_hash_setkey(struct crypto_shash *tfm, const u8 *key, + unsigned int keylen) +{ return 0; } static int null_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) @@ -77,49 +90,35 @@ static int skcipher_null_crypt(struct blkcipher_desc *desc, return err; } -static struct crypto_alg compress_null = { - .cra_name = "compress_null", - .cra_flags = CRYPTO_ALG_TYPE_COMPRESS, - .cra_blocksize = NULL_BLOCK_SIZE, - .cra_ctxsize = 0, - .cra_module = THIS_MODULE, - .cra_list = LIST_HEAD_INIT(compress_null.cra_list), - .cra_u = { .compress = { - .coa_compress = null_compress, - .coa_decompress = null_compress } } -}; - -static struct crypto_alg digest_null = { - .cra_name = "digest_null", - .cra_flags = CRYPTO_ALG_TYPE_DIGEST, - .cra_blocksize = NULL_BLOCK_SIZE, - .cra_ctxsize = 0, - .cra_module = THIS_MODULE, - .cra_list = LIST_HEAD_INIT(digest_null.cra_list), - .cra_u = { .digest = { - .dia_digestsize = NULL_DIGEST_SIZE, - .dia_setkey = null_setkey, - .dia_init = null_init, - .dia_update = null_update, - .dia_final = null_final } } +static struct shash_alg digest_null = { + .digestsize = NULL_DIGEST_SIZE, + .setkey = null_hash_setkey, + .init = null_init, + .update = null_update, + .finup = null_digest, + .digest = null_digest, + .final = null_final, + .base = { + .cra_name = "digest_null", + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = NULL_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } }; -static struct crypto_alg cipher_null = { +static struct crypto_alg null_algs[3] = { { .cra_name = "cipher_null", .cra_flags = CRYPTO_ALG_TYPE_CIPHER, .cra_blocksize = NULL_BLOCK_SIZE, .cra_ctxsize = 0, .cra_module = THIS_MODULE, - .cra_list = LIST_HEAD_INIT(cipher_null.cra_list), .cra_u = { .cipher = { .cia_min_keysize = NULL_KEY_SIZE, .cia_max_keysize = NULL_KEY_SIZE, .cia_setkey = null_setkey, .cia_encrypt = null_crypt, .cia_decrypt = null_crypt } } -}; - -static struct crypto_alg skcipher_null = { +}, { .cra_name = "ecb(cipher_null)", .cra_driver_name = "ecb-cipher_null", .cra_priority = 100, @@ -128,7 +127,6 @@ static struct crypto_alg skcipher_null = { .cra_type = &crypto_blkcipher_type, .cra_ctxsize = 0, .cra_module = THIS_MODULE, - .cra_list = LIST_HEAD_INIT(skcipher_null.cra_list), .cra_u = { .blkcipher = { .min_keysize = NULL_KEY_SIZE, .max_keysize = NULL_KEY_SIZE, @@ -136,54 +134,49 @@ static struct crypto_alg skcipher_null = { .setkey = null_setkey, .encrypt = skcipher_null_crypt, .decrypt = skcipher_null_crypt } } -}; +}, { + .cra_name = "compress_null", + .cra_flags = CRYPTO_ALG_TYPE_COMPRESS, + .cra_blocksize = NULL_BLOCK_SIZE, + .cra_ctxsize = 0, + .cra_module = THIS_MODULE, + .cra_u = { .compress = { + .coa_compress = null_compress, + .coa_decompress = null_compress } } +} }; MODULE_ALIAS("compress_null"); MODULE_ALIAS("digest_null"); MODULE_ALIAS("cipher_null"); -static int __init init(void) +static int __init crypto_null_mod_init(void) { int ret = 0; - - ret = crypto_register_alg(&cipher_null); - if (ret < 0) - goto out; - ret = crypto_register_alg(&skcipher_null); + ret = crypto_register_algs(null_algs, ARRAY_SIZE(null_algs)); if (ret < 0) - goto out_unregister_cipher; + goto out; - ret = crypto_register_alg(&digest_null); + ret = crypto_register_shash(&digest_null); if (ret < 0) - goto out_unregister_skcipher; + goto out_unregister_algs; - ret = crypto_register_alg(&compress_null); - if (ret < 0) - goto out_unregister_digest; + return 0; -out: +out_unregister_algs: + crypto_unregister_algs(null_algs, ARRAY_SIZE(null_algs)); +out: return ret; - -out_unregister_digest: - crypto_unregister_alg(&digest_null); -out_unregister_skcipher: - crypto_unregister_alg(&skcipher_null); -out_unregister_cipher: - crypto_unregister_alg(&cipher_null); - goto out; } -static void __exit fini(void) +static void __exit crypto_null_mod_fini(void) { - crypto_unregister_alg(&compress_null); - crypto_unregister_alg(&digest_null); - crypto_unregister_alg(&skcipher_null); - crypto_unregister_alg(&cipher_null); + crypto_unregister_shash(&digest_null); + crypto_unregister_algs(null_algs, ARRAY_SIZE(null_algs)); } -module_init(init); -module_exit(fini); +module_init(crypto_null_mod_init); +module_exit(crypto_null_mod_fini); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Null Cryptographic Algorithms"); |