crypto/aesni_mb: support DES

[dpdk.git] / drivers / crypto / aesni_mb / rte_aesni_mb_pmd.c

diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
index f91504d..49242fc 100644 (file)
--- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
+++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
@@ -30,6 +30,8 @@
  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <des.h>
+
 #include <rte_common.h>
 #include <rte_hexdump.h>
 #include <rte_cryptodev.h>
@@ -188,6 +190,7 @@ aesni_mb_set_session_cipher_parameters(const struct aesni_mb_op_fns *mb_ops,
                struct aesni_mb_session *sess,
                const struct rte_crypto_sym_xform *xform)
 {
+       uint8_t is_aes = 0;
        aes_keyexp_t aes_keyexp_fn;
 
        if (xform == NULL) {
@@ -217,45 +220,68 @@ aesni_mb_set_session_cipher_parameters(const struct aesni_mb_op_fns *mb_ops,
        switch (xform->cipher.algo) {
        case RTE_CRYPTO_CIPHER_AES_CBC:
                sess->cipher.mode = CBC;
+               is_aes = 1;
                break;
        case RTE_CRYPTO_CIPHER_AES_CTR:
                sess->cipher.mode = CNTR;
+               is_aes = 1;
                break;
        case RTE_CRYPTO_CIPHER_AES_DOCSISBPI:
                sess->cipher.mode = DOCSIS_SEC_BPI;
+               is_aes = 1;
                break;
-       default:
-               MB_LOG_ERR("Unsupported cipher mode parameter");
-               return -ENOTSUP;
-       }
-
-       /* Check key length and choose key expansion function */
-       switch (xform->cipher.key.length) {
-       case AES_128_BYTES:
-               sess->cipher.key_length_in_bytes = AES_128_BYTES;
-               aes_keyexp_fn = mb_ops->aux.keyexp.aes128;
+       case RTE_CRYPTO_CIPHER_DES_CBC:
+               sess->cipher.mode = DES;
                break;
-       case AES_192_BYTES:
-               sess->cipher.key_length_in_bytes = AES_192_BYTES;
-               aes_keyexp_fn = mb_ops->aux.keyexp.aes192;
-               break;
-       case AES_256_BYTES:
-               sess->cipher.key_length_in_bytes = AES_256_BYTES;
-               aes_keyexp_fn = mb_ops->aux.keyexp.aes256;
+       case RTE_CRYPTO_CIPHER_DES_DOCSISBPI:
+               sess->cipher.mode = DOCSIS_DES;
                break;
        default:
-               MB_LOG_ERR("Invalid cipher key length");
-               return -EINVAL;
+               MB_LOG_ERR("Unsupported cipher mode parameter");
+               return -ENOTSUP;
        }
 
        /* Set IV parameters */
        sess->iv.offset = xform->cipher.iv.offset;
        sess->iv.length = xform->cipher.iv.length;
 
-       /* Expanded cipher keys */
-       (*aes_keyexp_fn)(xform->cipher.key.data,
-                       sess->cipher.expanded_aes_keys.encode,
-                       sess->cipher.expanded_aes_keys.decode);
+       /* Check key length and choose key expansion function for AES */
+       if (is_aes) {
+               switch (xform->cipher.key.length) {
+               case AES_128_BYTES:
+                       sess->cipher.key_length_in_bytes = AES_128_BYTES;
+                       aes_keyexp_fn = mb_ops->aux.keyexp.aes128;
+                       break;
+               case AES_192_BYTES:
+                       sess->cipher.key_length_in_bytes = AES_192_BYTES;
+                       aes_keyexp_fn = mb_ops->aux.keyexp.aes192;
+                       break;
+               case AES_256_BYTES:
+                       sess->cipher.key_length_in_bytes = AES_256_BYTES;
+                       aes_keyexp_fn = mb_ops->aux.keyexp.aes256;
+                       break;
+               default:
+                       MB_LOG_ERR("Invalid cipher key length");
+                       return -EINVAL;
+               }
+
+               /* Expanded cipher keys */
+               (*aes_keyexp_fn)(xform->cipher.key.data,
+                               sess->cipher.expanded_aes_keys.encode,
+                               sess->cipher.expanded_aes_keys.decode);
+
+       } else {
+               if (xform->cipher.key.length != 8) {
+                       MB_LOG_ERR("Invalid cipher key length");
+                       return -EINVAL;
+               }
+               sess->cipher.key_length_in_bytes = 8;
+
+               des_key_schedule((uint64_t *)sess->cipher.expanded_aes_keys.encode,
+                               xform->cipher.key.data);
+               des_key_schedule((uint64_t *)sess->cipher.expanded_aes_keys.decode,
+                               xform->cipher.key.data);
+       }
 
        return 0;
 }