net: tls: Add ARIA-GCM algorithm

RFC 6209 describes ARIA for TLS 1.2.
ARIA-128-GCM and ARIA-256-GCM are defined in RFC 6209.

This patch would offer performance increment and an opportunity for
hardware offload.

Benchmark results:
iperf-ssl are used.
CPU: intel i3-12100.

  TLS(openssl-3.0-dev)
[  3]  0.0- 1.0 sec   185 MBytes  1.55 Gbits/sec
[  3]  1.0- 2.0 sec   186 MBytes  1.56 Gbits/sec
[  3]  2.0- 3.0 sec   186 MBytes  1.56 Gbits/sec
[  3]  3.0- 4.0 sec   186 MBytes  1.56 Gbits/sec
[  3]  4.0- 5.0 sec   186 MBytes  1.56 Gbits/sec
[  3]  0.0- 5.0 sec   927 MBytes  1.56 Gbits/sec
  kTLS(aria-generic)
[  3]  0.0- 1.0 sec   198 MBytes  1.66 Gbits/sec
[  3]  1.0- 2.0 sec   194 MBytes  1.62 Gbits/sec
[  3]  2.0- 3.0 sec   194 MBytes  1.63 Gbits/sec
[  3]  3.0- 4.0 sec   194 MBytes  1.63 Gbits/sec
[  3]  4.0- 5.0 sec   194 MBytes  1.62 Gbits/sec
[  3]  0.0- 5.0 sec   974 MBytes  1.63 Gbits/sec
  kTLS(aria-avx wirh GFNI)
[  3]  0.0- 1.0 sec   632 MBytes  5.30 Gbits/sec
[  3]  1.0- 2.0 sec   657 MBytes  5.51 Gbits/sec
[  3]  2.0- 3.0 sec   657 MBytes  5.51 Gbits/sec
[  3]  3.0- 4.0 sec   656 MBytes  5.50 Gbits/sec
[  3]  4.0- 5.0 sec   656 MBytes  5.50 Gbits/sec
[  3]  0.0- 5.0 sec  3.18 GBytes  5.47 Gbits/sec

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Reviewed-by: Vadim Fedorenko <vfedorenko@novek.ru>
Link: https://lore.kernel.org/r/20220925150033.24615-1-ap420073@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/include/uapi/linux/tls.h b/include/uapi/linux/tls.h
index f1157d8..b66a800 100644 (file)
--- a/include/uapi/linux/tls.h
+++ b/include/uapi/linux/tls.h
@@ -100,6 +100,20 @@
 #define TLS_CIPHER_SM4_CCM_TAG_SIZE            16
 #define TLS_CIPHER_SM4_CCM_REC_SEQ_SIZE                8
 
+#define TLS_CIPHER_ARIA_GCM_128                                57
+#define TLS_CIPHER_ARIA_GCM_128_IV_SIZE                        8
+#define TLS_CIPHER_ARIA_GCM_128_KEY_SIZE               16
+#define TLS_CIPHER_ARIA_GCM_128_SALT_SIZE              4
+#define TLS_CIPHER_ARIA_GCM_128_TAG_SIZE               16
+#define TLS_CIPHER_ARIA_GCM_128_REC_SEQ_SIZE           8
+
+#define TLS_CIPHER_ARIA_GCM_256                                58
+#define TLS_CIPHER_ARIA_GCM_256_IV_SIZE                        8
+#define TLS_CIPHER_ARIA_GCM_256_KEY_SIZE               32
+#define TLS_CIPHER_ARIA_GCM_256_SALT_SIZE              4
+#define TLS_CIPHER_ARIA_GCM_256_TAG_SIZE               16
+#define TLS_CIPHER_ARIA_GCM_256_REC_SEQ_SIZE           8
+
 #define TLS_SET_RECORD_TYPE    1
 #define TLS_GET_RECORD_TYPE    2
 
@@ -156,6 +170,22 @@ struct tls12_crypto_info_sm4_ccm {
        unsigned char rec_seq[TLS_CIPHER_SM4_CCM_REC_SEQ_SIZE];
 };
 
+struct tls12_crypto_info_aria_gcm_128 {
+       struct tls_crypto_info info;
+       unsigned char iv[TLS_CIPHER_ARIA_GCM_128_IV_SIZE];
+       unsigned char key[TLS_CIPHER_ARIA_GCM_128_KEY_SIZE];
+       unsigned char salt[TLS_CIPHER_ARIA_GCM_128_SALT_SIZE];
+       unsigned char rec_seq[TLS_CIPHER_ARIA_GCM_128_REC_SEQ_SIZE];
+};
+
+struct tls12_crypto_info_aria_gcm_256 {
+       struct tls_crypto_info info;
+       unsigned char iv[TLS_CIPHER_ARIA_GCM_256_IV_SIZE];
+       unsigned char key[TLS_CIPHER_ARIA_GCM_256_KEY_SIZE];
+       unsigned char salt[TLS_CIPHER_ARIA_GCM_256_SALT_SIZE];
+       unsigned char rec_seq[TLS_CIPHER_ARIA_GCM_256_REC_SEQ_SIZE];
+};
+
 enum {
        TLS_INFO_UNSPEC,
        TLS_INFO_VERSION,

diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index 5cc6911..3735cb0 100644 (file)
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -524,6 +524,54 @@ static int do_tls_getsockopt_conf(struct sock *sk, char __user *optval,
                        rc = -EFAULT;
                break;
        }
+       case TLS_CIPHER_ARIA_GCM_128: {
+               struct tls12_crypto_info_aria_gcm_128 *
+                 crypto_info_aria_gcm_128 =
+                 container_of(crypto_info,
+                              struct tls12_crypto_info_aria_gcm_128,
+                              info);
+
+               if (len != sizeof(*crypto_info_aria_gcm_128)) {
+                       rc = -EINVAL;
+                       goto out;
+               }
+               lock_sock(sk);
+               memcpy(crypto_info_aria_gcm_128->iv,
+                      cctx->iv + TLS_CIPHER_ARIA_GCM_128_SALT_SIZE,
+                      TLS_CIPHER_ARIA_GCM_128_IV_SIZE);
+               memcpy(crypto_info_aria_gcm_128->rec_seq, cctx->rec_seq,
+                      TLS_CIPHER_ARIA_GCM_128_REC_SEQ_SIZE);
+               release_sock(sk);
+               if (copy_to_user(optval,
+                                crypto_info_aria_gcm_128,
+                                sizeof(*crypto_info_aria_gcm_128)))
+                       rc = -EFAULT;
+               break;
+       }
+       case TLS_CIPHER_ARIA_GCM_256: {
+               struct tls12_crypto_info_aria_gcm_256 *
+                 crypto_info_aria_gcm_256 =
+                 container_of(crypto_info,
+                              struct tls12_crypto_info_aria_gcm_256,
+                              info);
+
+               if (len != sizeof(*crypto_info_aria_gcm_256)) {
+                       rc = -EINVAL;
+                       goto out;
+               }
+               lock_sock(sk);
+               memcpy(crypto_info_aria_gcm_256->iv,
+                      cctx->iv + TLS_CIPHER_ARIA_GCM_256_SALT_SIZE,
+                      TLS_CIPHER_ARIA_GCM_256_IV_SIZE);
+               memcpy(crypto_info_aria_gcm_256->rec_seq, cctx->rec_seq,
+                      TLS_CIPHER_ARIA_GCM_256_REC_SEQ_SIZE);
+               release_sock(sk);
+               if (copy_to_user(optval,
+                                crypto_info_aria_gcm_256,
+                                sizeof(*crypto_info_aria_gcm_256)))
+                       rc = -EFAULT;
+               break;
+       }
        default:
                rc = -EINVAL;
        }
@@ -685,6 +733,20 @@ static int do_tls_setsockopt_conf(struct sock *sk, sockptr_t optval,
        case TLS_CIPHER_SM4_CCM:
                optsize = sizeof(struct tls12_crypto_info_sm4_ccm);
                break;
+       case TLS_CIPHER_ARIA_GCM_128:
+               if (crypto_info->version != TLS_1_2_VERSION) {
+                       rc = -EINVAL;
+                       goto err_crypto_info;
+               }
+               optsize = sizeof(struct tls12_crypto_info_aria_gcm_128);
+               break;
+       case TLS_CIPHER_ARIA_GCM_256:
+               if (crypto_info->version != TLS_1_2_VERSION) {
+                       rc = -EINVAL;
+                       goto err_crypto_info;
+               }
+               optsize = sizeof(struct tls12_crypto_info_aria_gcm_256);
+               break;
        default:
                rc = -EINVAL;
                goto err_crypto_info;

diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index fe27241..264cf36 100644 (file)
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -2629,6 +2629,40 @@ int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx)
                cipher_name = "ccm(sm4)";
                break;
        }
+       case TLS_CIPHER_ARIA_GCM_128: {
+               struct tls12_crypto_info_aria_gcm_128 *aria_gcm_128_info;
+
+               aria_gcm_128_info = (void *)crypto_info;
+               nonce_size = TLS_CIPHER_ARIA_GCM_128_IV_SIZE;
+               tag_size = TLS_CIPHER_ARIA_GCM_128_TAG_SIZE;
+               iv_size = TLS_CIPHER_ARIA_GCM_128_IV_SIZE;
+               iv = aria_gcm_128_info->iv;
+               rec_seq_size = TLS_CIPHER_ARIA_GCM_128_REC_SEQ_SIZE;
+               rec_seq = aria_gcm_128_info->rec_seq;
+               keysize = TLS_CIPHER_ARIA_GCM_128_KEY_SIZE;
+               key = aria_gcm_128_info->key;
+               salt = aria_gcm_128_info->salt;
+               salt_size = TLS_CIPHER_ARIA_GCM_128_SALT_SIZE;
+               cipher_name = "gcm(aria)";
+               break;
+       }
+       case TLS_CIPHER_ARIA_GCM_256: {
+               struct tls12_crypto_info_aria_gcm_256 *gcm_256_info;
+
+               gcm_256_info = (void *)crypto_info;
+               nonce_size = TLS_CIPHER_ARIA_GCM_256_IV_SIZE;
+               tag_size = TLS_CIPHER_ARIA_GCM_256_TAG_SIZE;
+               iv_size = TLS_CIPHER_ARIA_GCM_256_IV_SIZE;
+               iv = gcm_256_info->iv;
+               rec_seq_size = TLS_CIPHER_ARIA_GCM_256_REC_SEQ_SIZE;
+               rec_seq = gcm_256_info->rec_seq;
+               keysize = TLS_CIPHER_ARIA_GCM_256_KEY_SIZE;
+               key = gcm_256_info->key;
+               salt = gcm_256_info->salt;
+               salt_size = TLS_CIPHER_ARIA_GCM_256_SALT_SIZE;
+               cipher_name = "gcm(aria)";
+               break;
+       }
        default:
                rc = -EINVAL;
                goto free_priv;