132 lines
4.3 KiB
C
132 lines
4.3 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Transport Layer Security
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*
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* Copyright 2011-2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FREERDP_LIB_CRYPTO_TLS_H
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#define FREERDP_LIB_CRYPTO_TLS_H
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#include <winpr/crt.h>
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#include <winpr/sspi.h>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include <freerdp/api.h>
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#include <freerdp/types.h>
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#include <freerdp/crypto/certificate_store.h>
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#include <winpr/stream.h>
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#define TLS_ALERT_LEVEL_WARNING 1
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#define TLS_ALERT_LEVEL_FATAL 2
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#define TLS_ALERT_DESCRIPTION_CLOSE_NOTIFY 0
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#define TLS_ALERT_DESCRIPTION_UNEXPECTED_MESSAGE 10
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#define TLS_ALERT_DESCRIPTION_BAD_RECORD_MAC 20
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#define TLS_ALERT_DESCRIPTION_DECRYPTION_FAILED 21
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#define TLS_ALERT_DESCRIPTION_RECORD_OVERFLOW 22
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#define TLS_ALERT_DESCRIPTION_DECOMPRESSION_FAILURE 30
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#define TLS_ALERT_DESCRIPTION_HANSHAKE_FAILURE 40
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#define TLS_ALERT_DESCRIPTION_NO_CERTIFICATE 41
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#define TLS_ALERT_DESCRIPTION_BAD_CERTIFICATE 42
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#define TLS_ALERT_DESCRIPTION_UNSUPPORTED_CERTIFICATE 43
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#define TLS_ALERT_DESCRIPTION_CERTIFICATE_REVOKED 44
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#define TLS_ALERT_DESCRIPTION_CERTIFICATE_EXPIRED 45
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#define TLS_ALERT_DESCRIPTION_CERTIFICATE_UNKNOWN 46
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#define TLS_ALERT_DESCRIPTION_ILLEGAL_PARAMETER 47
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#define TLS_ALERT_DESCRIPTION_UNKNOWN_CA 48
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#define TLS_ALERT_DESCRIPTION_ACCESS_DENIED 49
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#define TLS_ALERT_DESCRIPTION_DECODE_ERROR 50
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#define TLS_ALERT_DESCRIPTION_DECRYPT_ERROR 51
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#define TLS_ALERT_DESCRIPTION_EXPORT_RESTRICTION 60
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#define TLS_ALERT_DESCRIPTION_PROTOCOL_VERSION 70
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#define TLS_ALERT_DESCRIPTION_INSUFFICIENT_SECURITY 71
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#define TLS_ALERT_DESCRIPTION_INTERNAL_ERROR 80
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#define TLS_ALERT_DESCRIPTION_USER_CANCELED 90
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#define TLS_ALERT_DESCRIPTION_NO_RENEGOTIATION 100
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#define TLS_ALERT_DESCRIPTION_UNSUPPORTED_EXTENSION 110
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typedef struct rdp_tls rdpTls;
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struct rdp_tls
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{
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SSL* ssl;
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BIO* bio;
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void* tsg;
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SSL_CTX* ctx;
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BYTE* PublicKey;
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DWORD PublicKeyLength;
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rdpContext* context;
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SecPkgContext_Bindings* Bindings;
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rdpCertificateStore* certificate_store;
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BIO* underlying;
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const char* hostname;
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const char* serverName;
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int port;
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int alertLevel;
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int alertDescription;
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BOOL isGatewayTransport;
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BOOL isClientMode;
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};
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/** @brief result of a handshake operation */
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typedef enum
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{
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TLS_HANDSHAKE_SUCCESS, /*!< handshake was successful */
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TLS_HANDSHAKE_CONTINUE, /*!< handshake is not completed */
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TLS_HANDSHAKE_ERROR, /*!< an error (probably IO error) happened */
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TLS_HANDSHAKE_VERIFY_ERROR /*!< Certificate verification failed (client mode) */
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} TlsHandshakeResult;
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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FREERDP_LOCAL const SSL_METHOD* freerdp_tls_get_ssl_method(BOOL isDtls, BOOL isClient);
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FREERDP_LOCAL int freerdp_tls_connect(rdpTls* tls, BIO* underlying);
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FREERDP_LOCAL TlsHandshakeResult freerdp_tls_connect_ex(rdpTls* tls, BIO* underlying,
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const SSL_METHOD* methods);
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FREERDP_LOCAL BOOL freerdp_tls_accept(rdpTls* tls, BIO* underlying, rdpSettings* settings);
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FREERDP_LOCAL TlsHandshakeResult freerdp_tls_accept_ex(rdpTls* tls, BIO* underlying,
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rdpSettings* settings,
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const SSL_METHOD* methods);
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FREERDP_LOCAL TlsHandshakeResult freerdp_tls_handshake(rdpTls* tls);
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FREERDP_LOCAL BOOL freerdp_tls_send_alert(rdpTls* tls);
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FREERDP_LOCAL int freerdp_tls_write_all(rdpTls* tls, const BYTE* data, size_t length);
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FREERDP_LOCAL int freerdp_tls_set_alert_code(rdpTls* tls, int level, int description);
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FREERDP_LOCAL void freerdp_tls_free(rdpTls* tls);
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WINPR_ATTR_MALLOC(freerdp_tls_free, 1)
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FREERDP_LOCAL rdpTls* freerdp_tls_new(rdpContext* context);
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#ifdef __cplusplus
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}
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#endif
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#endif /* FREERDP_LIB_CRYPTO_TLS_H */
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