diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 11:43:22 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 11:43:22 -0800 |
commit | e14e61e967f2b3bdf23f05e4ae5b9aa830151a44 (patch) | |
tree | 9412c94cbe37bf6f0d0bd9ad2d8b907ce23eb1db /crypto/michael_mic.c | |
parent | cb10ea549fdc0ab2dd8988adab5bf40b4fa642f3 (diff) | |
parent | 0ee4a96902dd7858e65f378c86f428a0355bd841 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (57 commits)
crypto: aes - Precompute tables
crypto: talitos - Ack done interrupt in isr instead of tasklet
crypto: testmgr - Correct comment about deflate parameters
crypto: salsa20 - Remove private wrappers around various operations
crypto: des3_ede - permit weak keys unless REQ_WEAK_KEY set
crypto: sha512 - Switch to shash
crypto: sha512 - Move message schedule W[80] to static percpu area
crypto: michael_mic - Switch to shash
crypto: wp512 - Switch to shash
crypto: tgr192 - Switch to shash
crypto: sha256 - Switch to shash
crypto: md5 - Switch to shash
crypto: md4 - Switch to shash
crypto: sha1 - Switch to shash
crypto: rmd320 - Switch to shash
crypto: rmd256 - Switch to shash
crypto: rmd160 - Switch to shash
crypto: rmd128 - Switch to shash
crypto: null - Switch to shash
crypto: hash - Make setkey optional
...
Diffstat (limited to 'crypto/michael_mic.c')
-rw-r--r-- | crypto/michael_mic.c | 72 |
1 files changed, 41 insertions, 31 deletions
diff --git a/crypto/michael_mic.c b/crypto/michael_mic.c index 9e917b8011b..079b761bc70 100644 --- a/crypto/michael_mic.c +++ b/crypto/michael_mic.c @@ -9,23 +9,25 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ - +#include <crypto/internal/hash.h> #include <asm/byteorder.h> #include <linux/init.h> #include <linux/module.h> #include <linux/string.h> -#include <linux/crypto.h> #include <linux/types.h> struct michael_mic_ctx { + u32 l, r; +}; + +struct michael_mic_desc_ctx { u8 pending[4]; size_t pending_len; u32 l, r; }; - static inline u32 xswap(u32 val) { return ((val & 0x00ff00ff) << 8) | ((val & 0xff00ff00) >> 8); @@ -45,17 +47,22 @@ do { \ } while (0) -static void michael_init(struct crypto_tfm *tfm) +static int michael_init(struct shash_desc *desc) { - struct michael_mic_ctx *mctx = crypto_tfm_ctx(tfm); + struct michael_mic_desc_ctx *mctx = shash_desc_ctx(desc); + struct michael_mic_ctx *ctx = crypto_shash_ctx(desc->tfm); mctx->pending_len = 0; + mctx->l = ctx->l; + mctx->r = ctx->r; + + return 0; } -static void michael_update(struct crypto_tfm *tfm, const u8 *data, +static int michael_update(struct shash_desc *desc, const u8 *data, unsigned int len) { - struct michael_mic_ctx *mctx = crypto_tfm_ctx(tfm); + struct michael_mic_desc_ctx *mctx = shash_desc_ctx(desc); const __le32 *src; if (mctx->pending_len) { @@ -68,7 +75,7 @@ static void michael_update(struct crypto_tfm *tfm, const u8 *data, len -= flen; if (mctx->pending_len < 4) - return; + return 0; src = (const __le32 *)mctx->pending; mctx->l ^= le32_to_cpup(src); @@ -88,12 +95,14 @@ static void michael_update(struct crypto_tfm *tfm, const u8 *data, mctx->pending_len = len; memcpy(mctx->pending, src, len); } + + return 0; } -static void michael_final(struct crypto_tfm *tfm, u8 *out) +static int michael_final(struct shash_desc *desc, u8 *out) { - struct michael_mic_ctx *mctx = crypto_tfm_ctx(tfm); + struct michael_mic_desc_ctx *mctx = shash_desc_ctx(desc); u8 *data = mctx->pending; __le32 *dst = (__le32 *)out; @@ -119,17 +128,20 @@ static void michael_final(struct crypto_tfm *tfm, u8 *out) dst[0] = cpu_to_le32(mctx->l); dst[1] = cpu_to_le32(mctx->r); + + return 0; } -static int michael_setkey(struct crypto_tfm *tfm, const u8 *key, +static int michael_setkey(struct crypto_shash *tfm, const u8 *key, unsigned int keylen) { - struct michael_mic_ctx *mctx = crypto_tfm_ctx(tfm); + struct michael_mic_ctx *mctx = crypto_shash_ctx(tfm); + const __le32 *data = (const __le32 *)key; if (keylen != 8) { - tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; + crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); return -EINVAL; } @@ -138,33 +150,31 @@ static int michael_setkey(struct crypto_tfm *tfm, const u8 *key, return 0; } - -static struct crypto_alg michael_mic_alg = { - .cra_name = "michael_mic", - .cra_flags = CRYPTO_ALG_TYPE_DIGEST, - .cra_blocksize = 8, - .cra_ctxsize = sizeof(struct michael_mic_ctx), - .cra_module = THIS_MODULE, - .cra_alignmask = 3, - .cra_list = LIST_HEAD_INIT(michael_mic_alg.cra_list), - .cra_u = { .digest = { - .dia_digestsize = 8, - .dia_init = michael_init, - .dia_update = michael_update, - .dia_final = michael_final, - .dia_setkey = michael_setkey } } +static struct shash_alg alg = { + .digestsize = 8, + .setkey = michael_setkey, + .init = michael_init, + .update = michael_update, + .final = michael_final, + .descsize = sizeof(struct michael_mic_desc_ctx), + .base = { + .cra_name = "michael_mic", + .cra_blocksize = 8, + .cra_alignmask = 3, + .cra_ctxsize = sizeof(struct michael_mic_ctx), + .cra_module = THIS_MODULE, + } }; - static int __init michael_mic_init(void) { - return crypto_register_alg(&michael_mic_alg); + return crypto_register_shash(&alg); } static void __exit michael_mic_exit(void) { - crypto_unregister_alg(&michael_mic_alg); + crypto_unregister_shash(&alg); } |