1. 暴露ssl_stream.h给业务层；2. 将ssl policy功能放到业务层插件目录。

platform/src/ssl_utils.cpp

@@ -151,45 +151,7 @@ void ssl_openssl_version(void)
 #endif /* !SSL_OP_TLS_ROLLBACK_BUG */
 	fprintf(stderr, "\n");
 }
-int sslver_str2num(const char * version_str)
-{
-	int sslversion = -1;
 
-	assert(OPENSSL_VERSION_NUMBER >= 0x10100000L);
-
-	/*
-	 * Support for SSLv2 and the corresponding SSLv2_method(),
-	 * SSLv2_server_method() and SSLv2_client_method() functions were
-	 * removed in OpenSSL 1.1.0.
-	 */
-	if (!strcmp(version_str, "ssl3"))
-	{
-		sslversion = SSL3_VERSION;
-	}
-	else if (!strcmp(version_str, "tls10") || !strcmp(version_str, "tls1"))
-	{
-		sslversion = TLS1_VERSION;
-	}
-	else if (!strcmp(version_str, "tls11"))
-	{
-		sslversion = TLS1_1_VERSION;
-	}
-	else if (!strcmp(version_str, "tls12"))
-	{
-		sslversion = TLS1_2_VERSION;
-	}
-	else if (!strcmp(version_str, "tls13"))
-	{
-		sslversion = TLS1_3_VERSION;
-	}
-
-	else
-	{
-		sslversion = -1;
-	}
-
-	return sslversion;
-}
 
 /*
  * 1 if OpenSSL has been initialized, 0 if not.  When calling a _load()