sec.h

/**
 * vnc2rdp: proxy for RDP client connect to VNC server
 *
 * Copyright 2014 Yiwei Li <leeyiw@gmail.com>
 *
 * 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 _SEC_H_
#define _SEC_H_

#include "mcs.h"

#define ENCRYPTION_METHOD_NONE				0x00000000
#define ENCRYPTION_METHOD_40BIT				0x00000001
#define ENCRYPTION_METHOD_128BIT			0x00000002
#define ENCRYPTION_METHOD_56BIT				0x00000008
#define ENCRYPTION_METHOD_FIPS				0x00000010

#define ENCRYPTION_LEVEL_NONE				0x00000000
#define ENCRYPTION_LEVEL_LOW				0x00000001
#define ENCRYPTION_LEVEL_CLIENT_COMPATIBLE	0x00000002
#define ENCRYPTION_LEVEL_HIGH				0x00000003
#define ENCRYPTION_LEVEL_FIPS				0x00000004

#define SERVER_RANDOM_LEN					32

#define SEC_EXCHANGE_PKT		0x0001
#define SEC_TRANSPORT_REQ		0x0002
#define RDP_SEC_TRANSPORT_RSP	0x0004
#define SEC_ENCRYPT				0x0008
#define SEC_RESET_SEQNO			0x0010
#define SEC_IGNORE_SEQNO		0x0020
#define SEC_INFO_PKT			0x0040
#define SEC_LICENSE_PKT			0x0080
#define SEC_LICENSE_ENCRYPT_CS	0x0200
#define SEC_LICENSE_ENCRYPT_SC	0x0200
#define SEC_REDIRECTION_PKT		0x0400
#define SEC_SECURE_CHECKSUM		0x0800
#define SEC_AUTODETECT_REQ		0x1000
#define SEC_AUTODETECT_RSP		0x2000
#define SEC_HEARTBEAT			0x4000
#define SEC_FLAGSHI_VALID		0x8000

typedef struct _v2r_sec_t {
	v2r_mcs_t *mcs;
} v2r_sec_t;

extern v2r_sec_t *v2r_sec_init(int client_fd);
extern void v2r_sec_destory(v2r_sec_t *s);
extern int v2r_sec_recv(v2r_sec_t *s, v2r_packet_t *p, uint16_t *sec_flags,
						uint16_t *channel_id);
extern int v2r_sec_send(v2r_sec_t *s, v2r_packet_t *p, uint16_t sec_flags,
						uint16_t channel_id);
extern void v2r_sec_init_packet(v2r_packet_t *p);

#endif  // _SEC_H_