/*
 *
 * Copyright 2018 gRPC authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

#ifndef GRPC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_SSL_SSL_SECURITY_CONNECTOR_H
#define GRPC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_SSL_SSL_SECURITY_CONNECTOR_H

#include <grpc/support/port_platform.h>

#include <grpc/grpc_security.h>

#include "src/core/lib/security/security_connector/security_connector.h"

#include "src/core/lib/gprpp/ref_counted_ptr.h"
#include "src/core/tsi/ssl_transport_security.h"
#include "src/core/tsi/transport_security_interface.h"

struct grpc_ssl_config {
  tsi_ssl_pem_key_cert_pair* pem_key_cert_pair;
  char* pem_root_certs;
  verify_peer_options verify_options;
  grpc_tls_version min_tls_version = grpc_tls_version::TLS1_2;
  grpc_tls_version max_tls_version = grpc_tls_version::TLS1_3;
};

/* Creates an SSL channel_security_connector.
   - request_metadata_creds is the credentials object which metadata
     will be sent with each request. This parameter can be NULL.
   - config is the SSL config to be used for the SSL channel establishment.
   - is_client should be 0 for a server or a non-0 value for a client.
   - secure_peer_name is the secure peer name that should be checked in
     grpc_channel_security_connector_check_peer. This parameter may be NULL in
     which case the peer name will not be checked. Note that if this parameter
     is not NULL, then, pem_root_certs should not be NULL either.
   - sc is a pointer on the connector to be created.
  This function returns GRPC_SECURITY_OK in case of success or a
  specific error code otherwise.
*/
grpc_core::RefCountedPtr<grpc_channel_security_connector>
grpc_ssl_channel_security_connector_create(
    grpc_core::RefCountedPtr<grpc_channel_credentials> channel_creds,
    grpc_core::RefCountedPtr<grpc_call_credentials> request_metadata_creds,
    const grpc_ssl_config* config, const char* target_name,
    const char* overridden_target_name,
    tsi_ssl_session_cache* ssl_session_cache);

/* Config for ssl servers. */
struct grpc_ssl_server_config {
  tsi_ssl_pem_key_cert_pair* pem_key_cert_pairs = nullptr;
  size_t num_key_cert_pairs = 0;
  char* pem_root_certs = nullptr;
  grpc_ssl_client_certificate_request_type client_certificate_request =
      GRPC_SSL_DONT_REQUEST_CLIENT_CERTIFICATE;
  grpc_tls_version min_tls_version = grpc_tls_version::TLS1_2;
  grpc_tls_version max_tls_version = grpc_tls_version::TLS1_3;
};
/* Creates an SSL server_security_connector.
   - config is the SSL config to be used for the SSL channel establishment.
   - sc is a pointer on the connector to be created.
  This function returns GRPC_SECURITY_OK in case of success or a
  specific error code otherwise.
*/
grpc_core::RefCountedPtr<grpc_server_security_connector>
grpc_ssl_server_security_connector_create(
    grpc_core::RefCountedPtr<grpc_server_credentials> server_credentials);

#endif /* GRPC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_SSL_SSL_SECURITY_CONNECTOR_H \
        */
