/*
 * Copyright (C) 2008-2012 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

/* Typedefs for more compatibility with older GnuTLS. */

#ifndef _GNUTLS_COMPAT_H
#define _GNUTLS_COMPAT_H

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

#ifdef __GNUC__

#define _GNUTLS_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)

#if !defined GNUTLS_INTERNAL_BUILD
#if _GNUTLS_GCC_VERSION >= 30100
#define _GNUTLS_GCC_ATTR_DEPRECATED __attribute__ ((__deprecated__))
#endif
#endif

#endif				/* __GNUC__ */

#ifndef _GNUTLS_GCC_ATTR_DEPRECATED
#define _GNUTLS_GCC_ATTR_DEPRECATED
#endif

/* gnutls_connection_end_t was made redundant in 2.99.0 */
typedef unsigned int gnutls_connection_end_t _GNUTLS_GCC_ATTR_DEPRECATED;

/* Stuff deprected in 2.x */
typedef gnutls_cipher_algorithm_t gnutls_cipher_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_kx_algorithm_t gnutls_kx_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_mac_algorithm_t gnutls_mac_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_digest_algorithm_t gnutls_digest_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_compression_method_t gnutls_compression_method
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_connection_end_t gnutls_connection_end
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_crt_fmt_t gnutls_x509_crt_fmt
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_pk_algorithm_t gnutls_pk_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_sign_algorithm_t gnutls_sign_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_close_request_t gnutls_close_request
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_certificate_request_t gnutls_certificate_request
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_certificate_status_t gnutls_certificate_status
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_session_t gnutls_session _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_alert_level_t gnutls_alert_level
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_alert_description_t gnutls_alert_description
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_subject_alt_name_t gnutls_x509_subject_alt_name
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_openpgp_privkey_t gnutls_openpgp_privkey
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_openpgp_keyring_t gnutls_openpgp_keyring
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_crt_t gnutls_x509_crt _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_privkey_t gnutls_x509_privkey
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_crl_t gnutls_x509_crl _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_crq_t gnutls_x509_crq _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_certificate_credentials_t
    gnutls_certificate_credentials _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_anon_server_credentials_t
    gnutls_anon_server_credentials _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_anon_client_credentials_t
    gnutls_anon_client_credentials _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_srp_client_credentials_t
    gnutls_srp_client_credentials _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_srp_server_credentials_t
    gnutls_srp_server_credentials _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_dh_params_t gnutls_dh_params _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_rsa_params_t gnutls_rsa_params _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_params_type_t gnutls_params_type
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_credentials_type_t gnutls_credentials_type
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_certificate_type_t gnutls_certificate_type
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_datum_t gnutls_datum _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_transport_ptr_t gnutls_transport_ptr
    _GNUTLS_GCC_ATTR_DEPRECATED;

/* Old verification flags */
#define GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT  (0)

/* Old SRP alerts removed in 2.1.x because the TLS-SRP RFC was
   modified to use the PSK alert. */
#define GNUTLS_A_MISSING_SRP_USERNAME GNUTLS_A_UNKNOWN_PSK_IDENTITY
#define GNUTLS_A_UNKNOWN_SRP_USERNAME GNUTLS_A_UNKNOWN_PSK_IDENTITY

/* OpenPGP stuff renamed in 2.1.x. */
#define GNUTLS_OPENPGP_KEY GNUTLS_OPENPGP_CERT
#define GNUTLS_OPENPGP_KEY_FINGERPRINT GNUTLS_OPENPGP_CERT_FINGERPRINT
#define gnutls_openpgp_send_key gnutls_openpgp_send_cert
typedef gnutls_openpgp_crt_status_t gnutls_openpgp_key_status_t
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_openpgp_crt_t gnutls_openpgp_key_t
    _GNUTLS_GCC_ATTR_DEPRECATED;
#define gnutls_openpgp_key_init gnutls_openpgp_crt_init
#define gnutls_openpgp_key_deinit gnutls_openpgp_crt_deinit
#define gnutls_openpgp_key_import gnutls_openpgp_crt_import
#define gnutls_openpgp_key_export gnutls_openpgp_crt_export
#define gnutls_openpgp_key_get_key_usage gnutls_openpgp_crt_get_key_usage
#define gnutls_openpgp_key_get_fingerprint gnutls_openpgp_crt_get_fingerprint
#define gnutls_openpgp_key_get_pk_algorithm gnutls_openpgp_crt_get_pk_algorithm
#define gnutls_openpgp_key_get_name gnutls_openpgp_crt_get_name
#define gnutls_openpgp_key_get_version gnutls_openpgp_crt_get_version
#define gnutls_openpgp_key_get_creation_time gnutls_openpgp_crt_get_creation_time
#define gnutls_openpgp_key_get_expiration_time gnutls_openpgp_crt_get_expiration_time
#define gnutls_openpgp_key_get_id gnutls_openpgp_crt_get_id
#define gnutls_openpgp_key_check_hostname gnutls_openpgp_crt_check_hostname

/* OpenPGP stuff renamed in 2.3.x. */
#define gnutls_openpgp_crt_get_id gnutls_openpgp_crt_get_key_id

/* New better names renamed in 2.3.x, add these for backwards
   compatibility with old poor names.*/
#define GNUTLS_X509_CRT_FULL GNUTLS_CRT_PRINT_FULL
#define GNUTLS_X509_CRT_ONELINE GNUTLS_CRT_PRINT_ONELINE
#define GNUTLS_X509_CRT_UNSIGNED_FULL GNUTLS_CRT_PRINT_UNSIGNED_FULL

/* Namespace problems. */
#define LIBGNUTLS_VERSION GNUTLS_VERSION
#define LIBGNUTLS_VERSION_MAJOR GNUTLS_VERSION_MAJOR
#define LIBGNUTLS_VERSION_MINOR GNUTLS_VERSION_MINOR
#define LIBGNUTLS_VERSION_PATCH GNUTLS_VERSION_PATCH
#define LIBGNUTLS_VERSION_NUMBER GNUTLS_VERSION_NUMBER
#define LIBGNUTLS_EXTRA_VERSION GNUTLS_VERSION

/* The gnutls_retr_st was deprecated by gnutls_certificate_retrieve_function()
 * and gnutls_retr2_st.
 */
typedef struct gnutls_retr_st {
	gnutls_certificate_type_t type;
	union {
		gnutls_x509_crt_t *x509;
		gnutls_openpgp_crt_t pgp;
	} cert;
	unsigned int ncerts;	/* one for pgp keys */

	union {
		gnutls_x509_privkey_t x509;
		gnutls_openpgp_privkey_t pgp;
	} key;

	unsigned int deinit_all;	/* if non zero all keys will be deinited */
} gnutls_retr_st;

typedef int
gnutls_certificate_client_retrieve_function(gnutls_session_t,
					    const
					    gnutls_datum_t *
					    req_ca_rdn,
					    int nreqs, const
					    gnutls_pk_algorithm_t
					    * pk_algos, int
					    pk_algos_length,
					    gnutls_retr_st *);
typedef int
gnutls_certificate_server_retrieve_function(gnutls_session_t,
					    gnutls_retr_st *);

void gnutls_certificate_client_set_retrieve_function
    (gnutls_certificate_credentials_t cred,
     gnutls_certificate_client_retrieve_function *
     func) _GNUTLS_GCC_ATTR_DEPRECATED;
void
 gnutls_certificate_server_set_retrieve_function
    (gnutls_certificate_credentials_t cred,
     gnutls_certificate_server_retrieve_function *
     func) _GNUTLS_GCC_ATTR_DEPRECATED;

	/* External signing callback.  No longer supported because it
	 * was deprecated by the PKCS #11 API or gnutls_privkey_import_ext. */
typedef int (*gnutls_sign_func) (gnutls_session_t session,
				 void *userdata,
				 gnutls_certificate_type_t
				 cert_type,
				 const gnutls_datum_t * cert,
				 const gnutls_datum_t * hash,
				 gnutls_datum_t * signature);

void
gnutls_sign_callback_set(gnutls_session_t session,
			 gnutls_sign_func sign_func,
			 void *userdata) _GNUTLS_GCC_ATTR_DEPRECATED;
gnutls_sign_func
gnutls_sign_callback_get(gnutls_session_t session,
			 void **userdata) _GNUTLS_GCC_ATTR_DEPRECATED;

/* This is a very dangerous and error-prone function.
 * Use gnutls_privkey_sign_hash() instead.
 */
int gnutls_x509_privkey_sign_hash(gnutls_x509_privkey_t key,
				  const gnutls_datum_t * hash,
				  gnutls_datum_t * signature)
    _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_privkey_sign_hash(gnutls_openpgp_privkey_t key,
				     const gnutls_datum_t * hash,
				     gnutls_datum_t * signature)
    _GNUTLS_GCC_ATTR_DEPRECATED;

/* we support the gnutls_privkey_sign_data() instead.
 */
int gnutls_x509_privkey_sign_data(gnutls_x509_privkey_t key,
				  gnutls_digest_algorithm_t digest,
				  unsigned int flags,
				  const gnutls_datum_t * data,
				  void *signature,
				  size_t * signature_size)
    _GNUTLS_GCC_ATTR_DEPRECATED;

	/* gnutls_pubkey_verify_data() */
int gnutls_x509_crt_verify_data(gnutls_x509_crt_t crt,
				unsigned int flags,
				const gnutls_datum_t * data,
				const gnutls_datum_t * signature)
    _GNUTLS_GCC_ATTR_DEPRECATED;


	/* gnutls_pubkey_verify_hash() */
int gnutls_x509_crt_verify_hash(gnutls_x509_crt_t crt,
				unsigned int flags,
				const gnutls_datum_t * hash,
				const gnutls_datum_t * signature)
    _GNUTLS_GCC_ATTR_DEPRECATED;

	/* gnutls_pubkey_get_verify_algorithm() */
int gnutls_x509_crt_get_verify_algorithm(gnutls_x509_crt_t crt,
					 const gnutls_datum_t *
					 signature,
					 gnutls_digest_algorithm_t
					 * hash)
    _GNUTLS_GCC_ATTR_DEPRECATED;

	/* gnutls_pubkey_get_preferred_hash_algorithm() */
int gnutls_x509_crt_get_preferred_hash_algorithm(gnutls_x509_crt_t
						 crt,
						 gnutls_digest_algorithm_t
						 * hash, unsigned int
						 *mand)
    _GNUTLS_GCC_ATTR_DEPRECATED;

	/* gnutls_x509_crq_privkey_sign() */
int gnutls_x509_crq_sign(gnutls_x509_crq_t crq,
			 gnutls_x509_privkey_t key)
    _GNUTLS_GCC_ATTR_DEPRECATED;



	/* gnutls_x509_crl_privkey_sign */
int gnutls_x509_crl_sign(gnutls_x509_crl_t crl,
			 gnutls_x509_crt_t issuer,
			 gnutls_x509_privkey_t issuer_key)
    _GNUTLS_GCC_ATTR_DEPRECATED;

	/* functions to set priority of cipher suites
	 */
int gnutls_cipher_set_priority(gnutls_session_t session,
			       const int *list)
    _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_mac_set_priority(gnutls_session_t session,
			    const int *list) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_compression_set_priority(gnutls_session_t session,
				    const int *list)
    _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_kx_set_priority(gnutls_session_t session,
			   const int *list) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_protocol_set_priority(gnutls_session_t session,
				 const int *list)
    _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_certificate_type_set_priority(gnutls_session_t session,
					 const int *list)
    _GNUTLS_GCC_ATTR_DEPRECATED;

/* RSA params 
 */
int gnutls_rsa_params_init(gnutls_rsa_params_t *
			   rsa_params) _GNUTLS_GCC_ATTR_DEPRECATED;
void gnutls_rsa_params_deinit(gnutls_rsa_params_t rsa_params)
    _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_rsa_params_cpy(gnutls_rsa_params_t dst,
			  gnutls_rsa_params_t src)
    _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_rsa_params_import_raw(gnutls_rsa_params_t rsa_params,
				 const gnutls_datum_t * m,
				 const gnutls_datum_t * e,
				 const gnutls_datum_t * d,
				 const gnutls_datum_t * p,
				 const gnutls_datum_t * q,
				 const gnutls_datum_t * u);
int gnutls_rsa_params_generate2(gnutls_rsa_params_t params,
				unsigned int bits)
    _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_rsa_params_export_raw(gnutls_rsa_params_t rsa,
				 gnutls_datum_t * m,
				 gnutls_datum_t * e,
				 gnutls_datum_t * d,
				 gnutls_datum_t * p,
				 gnutls_datum_t * q,
				 gnutls_datum_t * u,
				 unsigned int *bits)
    _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_rsa_params_export_pkcs1(gnutls_rsa_params_t params,
				   gnutls_x509_crt_fmt_t format,
				   unsigned char *params_data,
				   size_t *
				   params_data_size)
    _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_rsa_params_import_pkcs1(gnutls_rsa_params_t params,
				   const gnutls_datum_t *
				   pkcs1_params,
				   gnutls_x509_crt_fmt_t format)
    _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_rsa_export_get_pubkey(gnutls_session_t session,
				 gnutls_datum_t * exponent,
				 gnutls_datum_t *
				 modulus) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_rsa_export_get_modulus_bits(gnutls_session_t session)
    _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_set_default_export_priority(gnutls_session_t session)
    _GNUTLS_GCC_ATTR_DEPRECATED;

void gnutls_certificate_set_rsa_export_params
    (gnutls_certificate_credentials_t res,
     gnutls_rsa_params_t rsa_params) _GNUTLS_GCC_ATTR_DEPRECATED;

	/* use gnutls_privkey_sign_hash() with the GNUTLS_PRIVKEY_SIGN_FLAG_TLS1_RSA flag */
int gnutls_privkey_sign_raw_data(gnutls_privkey_t key,
				 unsigned flags,
				 const gnutls_datum_t * data,
				 gnutls_datum_t *
				 signature) _GNUTLS_GCC_ATTR_DEPRECATED;

#ifdef _ISOC99_SOURCE
/* we provide older functions for compatibility as inline functions that
 * depend on gnutls_session_get_random. */

static inline const void
*gnutls_session_get_server_random(gnutls_session_t session)
    _GNUTLS_GCC_ATTR_DEPRECATED;
static inline const void
*gnutls_session_get_server_random(gnutls_session_t session)
{
	gnutls_datum_t rnd;
	gnutls_session_get_random(session, NULL, &rnd);	/*doc-skip */
	return rnd.data;
}

static inline const void
*gnutls_session_get_client_random(gnutls_session_t session)
    _GNUTLS_GCC_ATTR_DEPRECATED;
static inline const void
*gnutls_session_get_client_random(gnutls_session_t session)
{
	gnutls_datum_t rnd;
	gnutls_session_get_random(session, &rnd, NULL);	/*doc-skip */
	return rnd.data;
}
#endif

void
gnutls_global_set_mem_functions(gnutls_alloc_function alloc_func,
				gnutls_alloc_function secure_alloc_func,
				gnutls_is_secure_function is_secure_func,
				gnutls_realloc_function realloc_func,
				gnutls_free_function free_func) _GNUTLS_GCC_ATTR_DEPRECATED;

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */

#endif				/* _GNUTLS_COMPAT_H */
