crypto/aesni_mb: support 3DES

[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 b1b6bb0..93dc7a4 100644 (file)
--- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
+++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
@@ -182,6 +182,7 @@ aesni_mb_set_session_cipher_parameters(const struct aesni_mb_op_fns *mb_ops,
                const struct rte_crypto_sym_xform *xform)
 {
        uint8_t is_aes = 0;
+       uint8_t is_3DES = 0;
        aes_keyexp_t aes_keyexp_fn;
 
        if (xform == NULL) {
@@ -227,6 +228,10 @@ aesni_mb_set_session_cipher_parameters(const struct aesni_mb_op_fns *mb_ops,
        case RTE_CRYPTO_CIPHER_DES_DOCSISBPI:
                sess->cipher.mode = DOCSIS_DES;
                break;
+       case RTE_CRYPTO_CIPHER_3DES_CBC:
+               sess->cipher.mode = DES3;
+               is_3DES = 1;
+               break;
        default:
                AESNI_MB_LOG(ERR, "Unsupported cipher mode parameter");
                return -ENOTSUP;
@@ -261,6 +266,49 @@ aesni_mb_set_session_cipher_parameters(const struct aesni_mb_op_fns *mb_ops,
                                sess->cipher.expanded_aes_keys.encode,
                                sess->cipher.expanded_aes_keys.decode);
 
+       } else if (is_3DES) {
+               uint64_t *keys[3] = {sess->cipher.exp_3des_keys.key[0],
+                               sess->cipher.exp_3des_keys.key[1],
+                               sess->cipher.exp_3des_keys.key[2]};
+
+               switch (xform->cipher.key.length) {
+               case  24:
+                       des_key_schedule(keys[0], xform->cipher.key.data);
+                       des_key_schedule(keys[1], xform->cipher.key.data+8);
+                       des_key_schedule(keys[2], xform->cipher.key.data+16);
+
+                       /* Initialize keys - 24 bytes: [K1-K2-K3] */
+                       sess->cipher.exp_3des_keys.ks_ptr[0] = keys[0];
+                       sess->cipher.exp_3des_keys.ks_ptr[1] = keys[1];
+                       sess->cipher.exp_3des_keys.ks_ptr[2] = keys[2];
+                       break;
+               case 16:
+                       des_key_schedule(keys[0], xform->cipher.key.data);
+                       des_key_schedule(keys[1], xform->cipher.key.data+8);
+
+                       /* Initialize keys - 16 bytes: [K1=K1,K2=K2,K3=K1] */
+                       sess->cipher.exp_3des_keys.ks_ptr[0] = keys[0];
+                       sess->cipher.exp_3des_keys.ks_ptr[1] = keys[1];
+                       sess->cipher.exp_3des_keys.ks_ptr[2] = keys[0];
+                       break;
+               case 8:
+                       des_key_schedule(keys[0], xform->cipher.key.data);
+
+                       /* Initialize keys - 8 bytes: [K1 = K2 = K3] */
+                       sess->cipher.exp_3des_keys.ks_ptr[0] = keys[0];
+                       sess->cipher.exp_3des_keys.ks_ptr[1] = keys[0];
+                       sess->cipher.exp_3des_keys.ks_ptr[2] = keys[0];
+                       break;
+               default:
+                       AESNI_MB_LOG(ERR, "Invalid cipher key length");
+                       return -EINVAL;
+               }
+
+#if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
+               sess->cipher.key_length_in_bytes = 24;
+#else
+               sess->cipher.key_length_in_bytes = 8;
+#endif
        } else {
                if (xform->cipher.key.length != 8) {
                        AESNI_MB_LOG(ERR, "Invalid cipher key length");
@@ -524,8 +572,20 @@ set_mb_job_params(JOB_AES_HMAC *job, struct aesni_mb_qp *qp,
        job->cipher_mode = session->cipher.mode;
 
        job->aes_key_len_in_bytes = session->cipher.key_length_in_bytes;
-       job->aes_enc_key_expanded = session->cipher.expanded_aes_keys.encode;
-       job->aes_dec_key_expanded = session->cipher.expanded_aes_keys.decode;
+
+       if (job->cipher_mode == DES3) {
+               job->aes_enc_key_expanded =
+                       session->cipher.exp_3des_keys.ks_ptr;
+               job->aes_dec_key_expanded =
+                       session->cipher.exp_3des_keys.ks_ptr;
+       } else {
+               job->aes_enc_key_expanded =
+                       session->cipher.expanded_aes_keys.encode;
+               job->aes_dec_key_expanded =
+                       session->cipher.expanded_aes_keys.decode;
+       }
+
+
 
 
        /* Set authentication parameters */