Add sm4 ciphers to default provider

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9935)

1 files changed, 51 insertions, 0 deletions

diff --git a/providers/default/ciphers/cipher_sm4.c b/providers/default/ciphers/cipher_sm4.c
new file mode 100644
index 0000000000..8b7c3761ca
--- /dev/null
+++ b/providers/default/ciphers/cipher_sm4.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/* Dispatch functions for cast cipher modes ecb, cbc, ofb, cfb */
+
+#include "cipher_sm4.h"
+#include "internal/provider_algs.h"
+
+/* TODO (3.0) Figure out what flags to pass */
+#define SM4_FLAGS EVP_CIPH_FLAG_DEFAULT_ASN1
+
+static OSSL_OP_cipher_freectx_fn sm4_freectx;
+static OSSL_OP_cipher_dupctx_fn sm4_dupctx;
+
+static void sm4_freectx(void *vctx)
+{
+    PROV_SM4_CTX *ctx = (PROV_SM4_CTX *)vctx;
+
+    OPENSSL_clear_free(ctx,  sizeof(*ctx));
+}
+
+static void *sm4_dupctx(void *ctx)
+{
+    PROV_SM4_CTX *in = (PROV_SM4_CTX *)ctx;
+    PROV_SM4_CTX *ret = OPENSSL_malloc(sizeof(*ret));
+
+    if (ret == NULL) {
+        ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+    *ret = *in;
+
+    return ret;
+}
+
+/* sm4128ecb_functions */
+IMPLEMENT_generic_cipher(sm4, SM4, ecb, ECB, SM4_FLAGS, 128, 128, 0, block)
+/* sm4128cbc_functions */
+IMPLEMENT_generic_cipher(sm4, SM4, cbc, CBC, SM4_FLAGS, 128, 128, 128, block)
+/* sm4128ctr_functions */
+IMPLEMENT_generic_cipher(sm4, SM4, ctr, CTR, SM4_FLAGS, 128, 8, 128, stream)
+/* sm4128ofb128_functions */
+IMPLEMENT_generic_cipher(sm4, SM4, ofb128, OFB, SM4_FLAGS, 128, 8, 128, stream)
+/* sm4128cfb128_functions */
+IMPLEMENT_generic_cipher(sm4, SM4, cfb128,  CFB, SM4_FLAGS, 128, 8, 128, stream)