diff options
| -rw-r--r-- | crypto/digest.c | 42 | ||||
| -rw-r--r-- | crypto/michael_mic.c | 1 | ||||
| -rw-r--r-- | crypto/sha1.c | 1 | ||||
| -rw-r--r-- | crypto/sha256.c | 1 | ||||
| -rw-r--r-- | crypto/sha512.c | 2 | ||||
| -rw-r--r-- | crypto/tgr192.c | 3 |
6 files changed, 35 insertions, 15 deletions
diff --git a/crypto/digest.c b/crypto/digest.c index d9b6ac9..062d0a5 100644 --- a/crypto/digest.c +++ b/crypto/digest.c @@ -27,6 +27,7 @@ static void update(struct crypto_tfm *tfm, struct scatterlist *sg, unsigned int nsg) { unsigned int i; + unsigned int alignmask = crypto_tfm_alg_alignmask(tfm); for (i = 0; i < nsg; i++) { @@ -38,12 +39,24 @@ static void update(struct crypto_tfm *tfm, unsigned int bytes_from_page = min(l, ((unsigned int) (PAGE_SIZE)) - offset); - char *p = crypto_kmap(pg, 0) + offset; + char *src = crypto_kmap(pg, 0); + char *p = src + offset; + if (unlikely(offset & alignmask)) { + unsigned int bytes = + alignmask + 1 - (offset & alignmask); + bytes = min(bytes, bytes_from_page); + tfm->__crt_alg->cra_digest.dia_update + (crypto_tfm_ctx(tfm), p, + bytes); + p += bytes; + bytes_from_page -= bytes; + l -= bytes; + } tfm->__crt_alg->cra_digest.dia_update (crypto_tfm_ctx(tfm), p, bytes_from_page); - crypto_kunmap(p, 0); + crypto_kunmap(src, 0); crypto_yield(tfm); offset = 0; pg++; @@ -54,7 +67,15 @@ static void update(struct crypto_tfm *tfm, static void final(struct crypto_tfm *tfm, u8 *out) { - tfm->__crt_alg->cra_digest.dia_final(crypto_tfm_ctx(tfm), out); + unsigned long alignmask = crypto_tfm_alg_alignmask(tfm); + if (unlikely((unsigned long)out & alignmask)) { + unsigned int size = crypto_tfm_alg_digestsize(tfm); + u8 buffer[size + alignmask]; + u8 *dst = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1); + tfm->__crt_alg->cra_digest.dia_final(crypto_tfm_ctx(tfm), dst); + memcpy(out, dst, size); + } else + tfm->__crt_alg->cra_digest.dia_final(crypto_tfm_ctx(tfm), out); } static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) @@ -69,18 +90,9 @@ static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) static void digest(struct crypto_tfm *tfm, struct scatterlist *sg, unsigned int nsg, u8 *out) { - unsigned int i; - - tfm->crt_digest.dit_init(tfm); - - for (i = 0; i < nsg; i++) { - char *p = crypto_kmap(sg[i].page, 0) + sg[i].offset; - tfm->__crt_alg->cra_digest.dia_update(crypto_tfm_ctx(tfm), - p, sg[i].length); - crypto_kunmap(p, 0); - crypto_yield(tfm); - } - crypto_digest_final(tfm, out); + init(tfm); + update(tfm, sg, nsg); + final(tfm, out); } int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags) diff --git a/crypto/michael_mic.c b/crypto/michael_mic.c index 4f6ab23..701f859 100644 --- a/crypto/michael_mic.c +++ b/crypto/michael_mic.c @@ -145,6 +145,7 @@ static struct crypto_alg michael_mic_alg = { .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, diff --git a/crypto/sha1.c b/crypto/sha1.c index 21571ed3..b96f57d 100644 --- a/crypto/sha1.c +++ b/crypto/sha1.c @@ -112,6 +112,7 @@ static struct crypto_alg alg = { .cra_blocksize = SHA1_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct sha1_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 3, .cra_list = LIST_HEAD_INIT(alg.cra_list), .cra_u = { .digest = { .dia_digestsize = SHA1_DIGEST_SIZE, diff --git a/crypto/sha256.c b/crypto/sha256.c index 9d5ef67..d62264a 100644 --- a/crypto/sha256.c +++ b/crypto/sha256.c @@ -313,6 +313,7 @@ static struct crypto_alg alg = { .cra_blocksize = SHA256_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct sha256_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 3, .cra_list = LIST_HEAD_INIT(alg.cra_list), .cra_u = { .digest = { .dia_digestsize = SHA256_DIGEST_SIZE, diff --git a/crypto/sha512.c b/crypto/sha512.c index 3e6e939..7dbec4f 100644 --- a/crypto/sha512.c +++ b/crypto/sha512.c @@ -281,6 +281,7 @@ static struct crypto_alg sha512 = { .cra_blocksize = SHA512_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct sha512_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 3, .cra_list = LIST_HEAD_INIT(sha512.cra_list), .cra_u = { .digest = { .dia_digestsize = SHA512_DIGEST_SIZE, @@ -295,6 +296,7 @@ static struct crypto_alg sha384 = { .cra_flags = CRYPTO_ALG_TYPE_DIGEST, .cra_blocksize = SHA384_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct sha512_ctx), + .cra_alignmask = 3, .cra_module = THIS_MODULE, .cra_list = LIST_HEAD_INIT(sha384.cra_list), .cra_u = { .digest = { diff --git a/crypto/tgr192.c b/crypto/tgr192.c index 2d8e44f..1eae1bb 100644 --- a/crypto/tgr192.c +++ b/crypto/tgr192.c @@ -627,6 +627,7 @@ static struct crypto_alg tgr192 = { .cra_blocksize = TGR192_BLOCK_SIZE, .cra_ctxsize = sizeof(struct tgr192_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 7, .cra_list = LIST_HEAD_INIT(tgr192.cra_list), .cra_u = {.digest = { .dia_digestsize = TGR192_DIGEST_SIZE, @@ -641,6 +642,7 @@ static struct crypto_alg tgr160 = { .cra_blocksize = TGR192_BLOCK_SIZE, .cra_ctxsize = sizeof(struct tgr192_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 7, .cra_list = LIST_HEAD_INIT(tgr160.cra_list), .cra_u = {.digest = { .dia_digestsize = TGR160_DIGEST_SIZE, @@ -655,6 +657,7 @@ static struct crypto_alg tgr128 = { .cra_blocksize = TGR192_BLOCK_SIZE, .cra_ctxsize = sizeof(struct tgr192_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 7, .cra_list = LIST_HEAD_INIT(tgr128.cra_list), .cra_u = {.digest = { .dia_digestsize = TGR128_DIGEST_SIZE, |
