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FreeRDP/libfreerdp-core/rdp.h
Pawel Jakub Dawidek b75b5eb8a1 After DEACTIVATE ALL PDU server can send MCS Disconnect Provider Ultimatum PDU to disconnect. 
Handle such condition and exit from xfreerdp gracefully (almost, exit status is still != 0).
2012-02-06 23:10:45 +01:00

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/**
* FreeRDP: A Remote Desktop Protocol Client
* RDP Core
*
* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@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 __RDP_H
#define __RDP_H
#include "mcs.h"
#include "tpkt.h"
#include "fastpath.h"
#include "tpdu.h"
#include "nego.h"
#include "input.h"
#include "update.h"
#include "license.h"
#include "errinfo.h"
#include "extension.h"
#include "security.h"
#include "transport.h"
#include "connection.h"
#include "redirection.h"
#include "capabilities.h"
#include "channel.h"
#include "mppc.h"
#include <freerdp/freerdp.h>
#include <freerdp/settings.h>
#include <freerdp/utils/debug.h>
#include <freerdp/utils/stream.h>
/* Security Header Flags */
#define SEC_EXCHANGE_PKT 0x0001
#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_FLAGSHI_VALID 0x8000
#define SEC_PKT_CS_MASK (SEC_EXCHANGE_PKT | SEC_INFO_PKT)
#define SEC_PKT_SC_MASK (SEC_LICENSE_PKT | SEC_REDIRECTION_PKT)
#define SEC_PKT_MASK (SEC_PKT_CS_MASK | SEC_PKT_SC_MASK)
#define RDP_SECURITY_HEADER_LENGTH 4
#define RDP_SHARE_CONTROL_HEADER_LENGTH 6
#define RDP_SHARE_DATA_HEADER_LENGTH 12
#define RDP_PACKET_HEADER_MAX_LENGTH (TPDU_DATA_LENGTH + MCS_SEND_DATA_HEADER_MAX_LENGTH)
#define PDU_TYPE_DEMAND_ACTIVE 0x1
#define PDU_TYPE_CONFIRM_ACTIVE 0x3
#define PDU_TYPE_DEACTIVATE_ALL 0x6
#define PDU_TYPE_DATA 0x7
#define PDU_TYPE_SERVER_REDIRECTION 0xA
#define FINALIZE_SC_SYNCHRONIZE_PDU 0x01
#define FINALIZE_SC_CONTROL_COOPERATE_PDU 0x02
#define FINALIZE_SC_CONTROL_GRANTED_PDU 0x04
#define FINALIZE_SC_FONT_MAP_PDU 0x08
#define FINALIZE_SC_COMPLETE 0x0F
/* Data PDU Types */
#define DATA_PDU_TYPE_UPDATE 0x02
#define DATA_PDU_TYPE_CONTROL 0x14
#define DATA_PDU_TYPE_POINTER 0x1B
#define DATA_PDU_TYPE_INPUT 0x1C
#define DATA_PDU_TYPE_SYNCHRONIZE 0x1F
#define DATA_PDU_TYPE_REFRESH_RECT 0x21
#define DATA_PDU_TYPE_PLAY_SOUND 0x22
#define DATA_PDU_TYPE_SUPPRESS_OUTPUT 0x23
#define DATA_PDU_TYPE_SHUTDOWN_REQUEST 0x24
#define DATA_PDU_TYPE_SHUTDOWN_DENIED 0x25
#define DATA_PDU_TYPE_SAVE_SESSION_INFO 0x26
#define DATA_PDU_TYPE_FONT_LIST 0x27
#define DATA_PDU_TYPE_FONT_MAP 0x28
#define DATA_PDU_TYPE_SET_KEYBOARD_INDICATORS 0x29
#define DATA_PDU_TYPE_BITMAP_CACHE_PERSISTENT_LIST 0x2B
#define DATA_PDU_TYPE_BITMAP_CACHE_ERROR 0x2C
#define DATA_PDU_TYPE_SET_KEYBOARD_IME_STATUS 0x2D
#define DATA_PDU_TYPE_OFFSCREEN_CACHE_ERROR 0x2E
#define DATA_PDU_TYPE_SET_ERROR_INFO 0x2F
#define DATA_PDU_TYPE_DRAW_NINEGRID_ERROR 0x30
#define DATA_PDU_TYPE_DRAW_GDIPLUS_ERROR 0x31
#define DATA_PDU_TYPE_ARC_STATUS 0x32
#define DATA_PDU_TYPE_STATUS_INFO 0x36
#define DATA_PDU_TYPE_MONITOR_LAYOUT 0x37
/* Compression Types */
#define PACKET_COMPRESSED 0x20
#define PACKET_AT_FRONT 0x40
#define PACKET_FLUSHED 0x80
#define PACKET_COMPR_TYPE_8K 0x00
#define PACKET_COMPR_TYPE_64K 0x01
#define PACKET_COMPR_TYPE_RDP6 0x02
#define PACKET_COMPR_TYPE_RDP61 0x03
#define CompressionTypeMask 0x0F
/* Stream Identifiers */
#define STREAM_UNDEFINED 0x00
#define STREAM_LOW 0x01
#define STREAM_MED 0x02
#define STREAM_HI 0x04
struct rdp_rdp
{
int state;
freerdp* instance;
struct rdp_mcs* mcs;
struct rdp_nego* nego;
struct rdp_input* input;
struct rdp_update* update;
struct rdp_fastpath* fastpath;
struct rdp_license* license;
struct rdp_redirection* redirection;
struct rdp_settings* settings;
struct rdp_transport* transport;
struct rdp_extension* extension;
struct rdp_mppc* mppc;
struct crypto_rc4_struct* rc4_decrypt_key;
int decrypt_use_count;
struct crypto_rc4_struct* rc4_encrypt_key;
int encrypt_use_count;
struct crypto_des3_struct* fips_encrypt;
struct crypto_des3_struct* fips_decrypt;
struct crypto_hmac_struct* fips_hmac;
uint32 sec_flags;
boolean do_crypt;
boolean do_secure_checksum;
uint8 sign_key[16];
uint8 decrypt_key[16];
uint8 encrypt_key[16];
uint8 decrypt_update_key[16];
uint8 encrypt_update_key[16];
int rc4_key_len;
uint8 fips_sign_key[20];
uint8 fips_encrypt_key[24];
uint8 fips_decrypt_key[24];
uint32 errorInfo;
uint32 finalize_sc_pdus;
boolean disconnect;
};
void rdp_read_security_header(STREAM* s, uint16* flags);
void rdp_write_security_header(STREAM* s, uint16 flags);
boolean rdp_read_share_control_header(STREAM* s, uint16* length, uint16* type, uint16* channel_id);
void rdp_write_share_control_header(STREAM* s, uint16 length, uint16 type, uint16 channel_id);
boolean rdp_read_share_data_header(STREAM* s, uint16* length, uint8* type, uint32* share_id,
uint8 *compressed_type, uint16 *compressed_len);
void rdp_write_share_data_header(STREAM* s, uint16 length, uint8 type, uint32 share_id);
STREAM* rdp_send_stream_init(rdpRdp* rdp);
boolean rdp_read_header(rdpRdp* rdp, STREAM* s, uint16* length, uint16* channel_id);
void rdp_write_header(rdpRdp* rdp, STREAM* s, uint16 length, uint16 channel_id);
STREAM* rdp_pdu_init(rdpRdp* rdp);
boolean rdp_send_pdu(rdpRdp* rdp, STREAM* s, uint16 type, uint16 channel_id);
STREAM* rdp_data_pdu_init(rdpRdp* rdp);
boolean rdp_send_data_pdu(rdpRdp* rdp, STREAM* s, uint8 type, uint16 channel_id);
void rdp_recv_data_pdu(rdpRdp* rdp, STREAM* s);
boolean rdp_send(rdpRdp* rdp, STREAM* s, uint16 channel_id);
void rdp_recv(rdpRdp* rdp);
int rdp_send_channel_data(rdpRdp* rdp, int channel_id, uint8* data, int size);
boolean rdp_recv_out_of_sequence_pdu(rdpRdp* rdp, STREAM* s);
void rdp_set_blocking_mode(rdpRdp* rdp, boolean blocking);
int rdp_check_fds(rdpRdp* rdp);
rdpRdp* rdp_new(freerdp* instance);
void rdp_free(rdpRdp* rdp);
#ifdef WITH_DEBUG_RDP
#define DEBUG_RDP(fmt, ...) DEBUG_CLASS(RDP, fmt, ## __VA_ARGS__)
#else
#define DEBUG_RDP(fmt, ...) DEBUG_NULL(fmt, ## __VA_ARGS__)
#endif
boolean rdp_decrypt(rdpRdp* rdp, STREAM* s, int length, uint16 securityFlags);
#endif /* __RDP_H */
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