#ifndef SSL_WRAPPER_INCLUDED
#define SSL_WRAPPER_INCLUDED

/* Copyright (c) 2016, 2021, Oracle and/or its affiliates.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.

   This program is also distributed with certain software (including
   but not limited to OpenSSL) that is licensed under separate terms,
   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
   permission to link the program and your derivative works with the
   separately licensed software that they have included with MySQL.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License, version 2.0, for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */

#include "violite.h"

namespace ssl_wrappe_service
{

int MY_ATTRIBUTE((visibility("default")))
dummy_function_to_ensure_we_are_linked_into_the_server();

} // ssl_wrappe_service

/**
  Return version of SSL used in currect connection

  @param vio              VIO connection descriptor
  @param buffer           Character buffer in which the version is going to be placed
  @param buffer_size      Size of the character buffer
*/
extern "C"
void ssl_wrapper_version(Vio *vio, char *version, const size_t version_size);

/**
  Return cipher used in current connection

  @param vio              VIO connection descriptor
  @param buffer           Character buffer in which the cipher name is going to be placed
  @param buffer_size      Size of the character buffer
*/
extern "C"
void ssl_wrapper_cipher(Vio *vio, char *cipher, const size_t cipher_size);

/**
  Return cipher list that can be used for SSL

  @param vio                       VIO connection descriptor
  @param clipher_list              Pointer to an array of c-strings
  @param maximun_num_of_elements   Size of the pointer array
*/
extern "C"
long ssl_wrapper_cipher_list(Vio *vio, const char **clipher_list, const size_t maximun_num_of_elements);

/**
  Return the verification depth limit set in SSL

  @param vio              VIO connection descriptor

  @return
    -1 default values should be used
    >0 verification depth
*/
extern "C"
long ssl_wrapper_verify_depth(Vio *vio);

/**
  Return the verification mode set in SSL

  @param vio              VIO connection descriptor

  @return
    -1 default values should be used
    >0 verification mode
*/
extern "C"
long ssl_wrapper_verify_mode(Vio *vio);

/**
  Return issuer name form peers ssl certificate

  @param vio              VIO connection descriptor
  @param issuer           Character buffer in which the issuer name is going to be placed
  @param issuer_size      Size of character buffer for the issuer name
*/
extern "C"
void ssl_wrapper_get_peer_certificate_issuer(Vio *vio, char *issuer, const size_t issuer_size);

/**
  Return subject field form peers ssl certificate

  @param vio              VIO connection descriptor
  @param subject          Character buffer in which the subject is going to be placed
  @param subject_size     Size of character buffer for the subject
*/
extern "C"
void ssl_wrapper_get_peer_certificate_subject(Vio *vio, char *subject, const size_t subject_size);

/**
  Check is peer certificate is present and try to verify it

  @param vio                 VIO connection descriptor

  @return
    X509_V_OK verification of peer certificate succeeded
    -1        verification failed
*/
extern "C"
long ssl_wrapper_get_verify_result_and_cert(Vio *vio);

/**
  Return the verification depth limit set in SSL context

  @param vio_ssl              VIO SSL contex descriptor

  @return
    -1 default values should be used
    >0 verification depth
*/
extern "C"
long ssl_wrapper_ctx_verify_depth(struct st_VioSSLFd *vio_ssl);

/**
  Return the verification mode set in SSL context

  @param vio_ssl              VIO SSL contex descriptor

  @return
    -1 default values should be used
    >0 verification mode
*/
extern "C"
long ssl_wrapper_ctx_verify_mode(struct st_VioSSLFd *vio_ssl);

/**
  Return the last day the server certificate is valid

  @param vio_ssl              VIO SSL contex descriptor
  @param no_after             Character buffer for to be filed with the date in human readble format
  @param no_after_size        Size of the character buffer
*/
extern "C"
void  ssl_wrapper_ctx_server_not_after(struct st_VioSSLFd *vio_ssl, char *no_after, const size_t no_after_size);

/**
  Return the first day the server certificate is valid

  @param vio_ssl              VIO SSL contex descriptor
  @param no_before            Character buffer for to be filed with the date in human readble format
  @param no_before_size       Size of the character buffer
*/
extern "C"
void ssl_wrapper_ctx_server_not_before(struct st_VioSSLFd *vio_ssl, char *no_before, const size_t no_before_size);

extern "C"
void ssl_wrapper_thread_cleanup();

extern "C"
long ssl_wrapper_sess_accept(struct st_VioSSLFd *vio_ssl);

/**
  Cleanup data allocated by SSL on thread stack

*/
extern "C"
long ssl_wrapper_sess_accept_good(struct st_VioSSLFd *vio_ssl);

#endif /* SSL_WRAPPER_INCLUDED */

