/** * FreeRDP: A Remote Desktop Protocol Client * RDP Core * * Copyright 2011 Marc-Andre Moreau * * 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 typedef struct rdp_rdp rdpRdp; #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 "security.h" #include "transport.h" #include "connection.h" #include "redirection.h" #include "capabilities.h" #include "vchan.h" #include "mppc.h" #include #include #include #include /* 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_LENGTH (TPDU_DATA_LENGTH + MCS_SEND_DATA_HEADER_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 /* 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; 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_vchan* vchan; 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; 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]; }; 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); 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); #endif /* __RDP_H */