/**
 * xrdp: A Remote Desktop Protocol server.
 *
 * Copyright (C) Jay Sorg 2004-2014
 * Copyright (C) Idan Freiberg 2013-2014
 *
 * 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.
 */

#if !defined(SSL_CALLS_H)
#define SSL_CALLS_H

#include "arch.h"

int
ssl_init(void);
int
ssl_finish(void);
void*
ssl_rc4_info_create(void);
void
ssl_rc4_info_delete(void* rc4_info);
void
ssl_rc4_set_key(void* rc4_info, char* key, int len);
void
ssl_rc4_crypt(void* rc4_info, char* data, int len);
void*
ssl_sha1_info_create(void);
void
ssl_sha1_info_delete(void* sha1_info);
void
ssl_sha1_clear(void* sha1_info);
void
ssl_sha1_transform(void* sha1_info, const char *data, int len);
void
ssl_sha1_complete(void* sha1_info, char* data);
void*
ssl_md5_info_create(void);
void
ssl_md5_info_delete(void* md5_info);
void
ssl_md5_clear(void* md5_info);
void
ssl_md5_transform(void* md5_info, char* data, int len);
void
ssl_md5_complete(void* md5_info, char* data);
void *
ssl_des3_encrypt_info_create(const char *key, const char* ivec);
void *
ssl_des3_decrypt_info_create(const char *key, const char* ivec);
void
ssl_des3_info_delete(void *des3);
int
ssl_des3_encrypt(void *des3, int length, const char *in_data, char *out_data);
int
ssl_des3_decrypt(void *des3, int length, const char *in_data, char *out_data);
void *
ssl_hmac_info_create(void);
void
ssl_hmac_info_delete(void *hmac);
void
ssl_hmac_sha1_init(void *hmac, const char *data, int len);
void
ssl_hmac_transform(void *hmac, const char *data, int len);
void
ssl_hmac_complete(void *hmac, char *data, int len);
int
ssl_mod_exp(char *out, int out_len, const char *in, int in_len,
            const char *mod, int mod_len, const char *exp, int exp_len);
int
ssl_gen_key_xrdp1(int key_size_in_bits, const char* exp, int exp_len,
                  char* mod, int mod_len, char* pri, int pri_len);

/* ssl_tls */
struct ssl_tls
{
    struct ssl_st *ssl; /* SSL * */
    struct ssl_ctx_st *ctx; /* SSL_CTX * */
    char *cert;
    char *key;
    struct trans *trans;
    tintptr rwo; /* wait obj */
};

/* xrdp_tls.c */
struct ssl_tls *
ssl_tls_create(struct trans *trans, const char *key, const char *cert);
int
ssl_tls_accept(struct ssl_tls *self, long ssl_protocols,
               const char *tls_ciphers);
int
ssl_tls_disconnect(struct ssl_tls *self);
void
ssl_tls_delete(struct ssl_tls *self);
int
ssl_tls_read(struct ssl_tls *tls, char *data, int length);
int
ssl_tls_write(struct ssl_tls *tls, const char *data, int length);
int
ssl_tls_can_recv(struct ssl_tls *tls, int sck, int millis);
const char *
ssl_get_version(const struct ssl_st *ssl);
const char *
ssl_get_cipher_name(const struct ssl_st *ssl);
int
ssl_get_protocols_from_string(const char *str, long *ssl_protocols);
const char *
get_openssl_version();

#endif