From: Arnaud Ebalard <arno@xxxxxxxxxxxx>
Add support for SHA256 operations.
Signed-off-by: Arnaud Ebalard <arno@xxxxxxxxxxxx>
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
---
drivers/crypto/marvell/cesa.c | 2 +
drivers/crypto/marvell/cesa.h | 2 +
drivers/crypto/marvell/hash.c | 159 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 163 insertions(+)
diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c
index 047c1c0..9c43cd7e 100644
--- a/drivers/crypto/marvell/cesa.c
+++ b/drivers/crypto/marvell/cesa.c
@@ -180,8 +180,10 @@ static struct crypto_alg *armada_370_cipher_algs[] = {
static struct ahash_alg *armada_370_ahash_algs[] = {
&mv_md5_alg,
&mv_sha1_alg,
+ &mv_sha256_alg,
&mv_ahmac_md5_alg,
&mv_ahmac_sha1_alg,
+ &mv_ahmac_sha256_alg,
};
static const struct mv_cesa_caps armada_370_caps = {
diff --git a/drivers/crypto/marvell/cesa.h b/drivers/crypto/marvell/cesa.h
index 283e322..b60698b 100644
--- a/drivers/crypto/marvell/cesa.h
+++ b/drivers/crypto/marvell/cesa.h
@@ -776,8 +776,10 @@ int mv_cesa_dma_add_op_transfers(struct mv_cesa_tdma_chain *chain,
extern struct ahash_alg mv_md5_alg;
extern struct ahash_alg mv_sha1_alg;
+extern struct ahash_alg mv_sha256_alg;
extern struct ahash_alg mv_ahmac_md5_alg;
extern struct ahash_alg mv_ahmac_sha1_alg;
+extern struct ahash_alg mv_ahmac_sha256_alg;
extern struct crypto_alg mv_cesa_ecb_des_alg;
extern struct crypto_alg mv_cesa_cbc_des_alg;
diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c
index 36bb756..ae9272e 100644
--- a/drivers/crypto/marvell/hash.c
+++ b/drivers/crypto/marvell/hash.c
@@ -975,6 +975,95 @@ struct ahash_alg mv_sha1_alg = {
}
};
+static int mv_cesa_sha256_init(struct ahash_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_SHA256);
+
+ mv_cesa_ahash_init(req, &tmpl);
+
+ return 0;
+}
+
+static int mv_cesa_sha256_digest(struct ahash_request *req)
+{
+ int ret;
+
+ ret = mv_cesa_sha256_init(req);
+ if (ret)
+ return ret;
+
+ return mv_cesa_ahash_finup(req);
+}
+
+static int mv_cesa_sha256_export(struct ahash_request *req, void *out)
+{
+ struct sha256_state *out_state = out;
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ unsigned int ds = crypto_ahash_digestsize(ahash);
+
+ out_state->count = creq->len;
+ memcpy(out_state->state, creq->state, ds);
+ memset(out_state->buf, 0, sizeof(out_state->buf));
+ if (creq->cache)
+ memcpy(out_state->buf, creq->cache, creq->cache_ptr);
+
+ return 0;
+}
+
+static int mv_cesa_sha256_import(struct ahash_request *req, const void *in)
+{
+ const struct sha256_state *in_state = in;
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ unsigned int digsize = crypto_ahash_digestsize(ahash);
+ unsigned int cache_ptr;
+ int ret;
+
+ creq->len = in_state->count;
+ memcpy(creq->state, in_state->state, digsize);
+ creq->cache_ptr = 0;
+
+ cache_ptr = creq->len % SHA256_BLOCK_SIZE;
+ if (!cache_ptr)
+ return 0;
+
+ ret = mv_cesa_ahash_alloc_cache(req);
+ if (ret)
+ return ret;
+
+ memcpy(creq->cache, in_state->buf, cache_ptr);
+ creq->cache_ptr = cache_ptr;
+
+ return 0;
+}
+
+struct ahash_alg mv_sha256_alg = {
+ .init = mv_cesa_sha256_init,
+ .update = mv_cesa_ahash_update,
+ .final = mv_cesa_ahash_final,
+ .finup = mv_cesa_ahash_finup,
+ .digest = mv_cesa_sha256_digest,
+ .export = mv_cesa_sha256_export,
+ .import = mv_cesa_sha256_import,
+ .halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .base = {
+ .cra_name = "sha256",
+ .cra_driver_name = "mv-sha256",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_hash_ctx),
+ .cra_init = mv_cesa_ahash_cra_init,
+ .cra_module = THIS_MODULE,
+ }
+ }
+};
+
struct mv_cesa_ahash_result {
struct completion completion;
int error;
@@ -1280,3 +1369,73 @@ struct ahash_alg mv_ahmac_sha1_alg = {
}
}
};
+
+static int mv_cesa_ahmac_sha256_setkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
+ struct sha256_state istate, ostate;
+ int ret, i;
+
+ ret = mv_cesa_ahmac_setkey("mv-sha256", key, keylen, &istate, &ostate);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < ARRAY_SIZE(istate.state); i++)
+ ctx->iv[i] = be32_to_cpu(istate.state[i]);
+
+ for (i = 0; i < ARRAY_SIZE(ostate.state); i++)
+ ctx->iv[i + 8] = be32_to_cpu(ostate.state[i]);
+
+ return 0;
+}
+
+static int mv_cesa_ahmac_sha256_init(struct ahash_request *req)
+{
+ struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_HMAC_SHA256);
+ memcpy(tmpl.ctx.hash.iv, ctx->iv, sizeof(ctx->iv));
+
+ mv_cesa_ahash_init(req, &tmpl);
+
+ return 0;
+}
+
+static int mv_cesa_ahmac_sha256_digest(struct ahash_request *req)
+{
+ int ret;
+
+ ret = mv_cesa_ahmac_sha256_init(req);
+ if (ret)
+ return ret;
+
+ return mv_cesa_ahash_finup(req);
+}
+
+struct ahash_alg mv_ahmac_sha256_alg = {
+ .init = mv_cesa_ahmac_sha256_init,
+ .update = mv_cesa_ahash_update,
+ .final = mv_cesa_ahash_final,
+ .finup = mv_cesa_ahash_finup,
+ .digest = mv_cesa_ahmac_sha256_digest,
+ .setkey = mv_cesa_ahmac_sha256_setkey,
+ .export = mv_cesa_sha256_export,
+ .import = mv_cesa_sha256_import,
+ .halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .statesize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "hmac(sha256)",
+ .cra_driver_name = "mv-hmac-sha256",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_hmac_ctx),
+ .cra_init = mv_cesa_ahmac_cra_init,
+ .cra_module = THIS_MODULE,
+ }
+ }
+};
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
