619 lines
21 KiB
C
619 lines
21 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Auto-Detect PDUs
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*
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* Copyright 2014 Dell Software <Mike.McDonald@software.dell.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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#include <winpr/bcrypt.h>
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "autodetect.h"
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#define RDP_RTT_REQUEST_TYPE_CONTINUOUS 0x0001
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#define RDP_RTT_REQUEST_TYPE_CONNECTTIME 0x1001
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#define RDP_RTT_RESPONSE_TYPE 0x0000
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#define RDP_BW_START_REQUEST_TYPE_CONTINUOUS 0x0014
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#define RDP_BW_START_REQUEST_TYPE_TUNNEL 0x0114
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#define RDP_BW_START_REQUEST_TYPE_CONNECTTIME 0x1014
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#define RDP_BW_PAYLOAD_REQUEST_TYPE 0x0002
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#define RDP_BW_STOP_REQUEST_TYPE_CONNECTTIME 0x002B
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#define RDP_BW_STOP_REQUEST_TYPE_CONTINUOUS 0x0429
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#define RDP_BW_STOP_REQUEST_TYPE_TUNNEL 0x0629
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#define RDP_BW_RESULTS_RESPONSE_TYPE_CONNECTTIME 0x0003
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#define RDP_BW_RESULTS_RESPONSE_TYPE_CONTINUOUS 0x000B
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#define RDP_NETCHAR_SYNC_RESPONSE_TYPE 0x0018
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typedef struct
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{
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UINT8 headerLength;
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UINT8 headerTypeId;
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UINT16 sequenceNumber;
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UINT16 requestType;
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} AUTODETECT_REQ_PDU;
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typedef struct
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{
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UINT8 headerLength;
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UINT8 headerTypeId;
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UINT16 sequenceNumber;
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UINT16 responseType;
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} AUTODETECT_RSP_PDU;
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static BOOL autodetect_send_rtt_measure_request(rdpContext* context, UINT16 sequenceNumber, UINT16 requestType)
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{
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wStream* s;
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s = rdp_message_channel_pdu_init(context->rdp);
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if (!s)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "sending RTT Measure Request PDU");
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Stream_Write_UINT8(s, 0x06); /* headerLength (1 byte) */
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Stream_Write_UINT8(s, TYPE_ID_AUTODETECT_REQUEST); /* headerTypeId (1 byte) */
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Stream_Write_UINT16(s, sequenceNumber); /* sequenceNumber (2 bytes) */
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Stream_Write_UINT16(s, requestType); /* requestType (2 bytes) */
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context->rdp->autodetect->rttMeasureStartTime = GetTickCount();
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return rdp_send_message_channel_pdu(context->rdp, s, SEC_AUTODETECT_REQ);
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}
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static BOOL autodetect_send_continuous_rtt_measure_request(rdpContext* context, UINT16 sequenceNumber)
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{
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return autodetect_send_rtt_measure_request(context, sequenceNumber, RDP_RTT_REQUEST_TYPE_CONTINUOUS);
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}
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BOOL autodetect_send_connecttime_rtt_measure_request(rdpContext* context, UINT16 sequenceNumber)
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{
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return autodetect_send_rtt_measure_request(context, sequenceNumber, RDP_RTT_REQUEST_TYPE_CONNECTTIME);
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}
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static BOOL autodetect_send_rtt_measure_response(rdpRdp* rdp, UINT16 sequenceNumber)
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{
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wStream* s;
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/* Send the response PDU to the server */
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s = rdp_message_channel_pdu_init(rdp);
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if (!s)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "sending RTT Measure Response PDU");
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Stream_Write_UINT8(s, 0x06); /* headerLength (1 byte) */
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Stream_Write_UINT8(s, TYPE_ID_AUTODETECT_RESPONSE); /* headerTypeId (1 byte) */
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Stream_Write_UINT16(s, sequenceNumber); /* sequenceNumber (2 bytes) */
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Stream_Write_UINT16(s, RDP_RTT_RESPONSE_TYPE); /* responseType (1 byte) */
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return rdp_send_message_channel_pdu(rdp, s, SEC_AUTODETECT_RSP);
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}
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static BOOL autodetect_send_bandwidth_measure_start(rdpContext* context, UINT16 sequenceNumber, UINT16 requestType)
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{
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wStream* s;
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s = rdp_message_channel_pdu_init(context->rdp);
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if (!s)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "sending Bandwidth Measure Start PDU");
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Stream_Write_UINT8(s, 0x06); /* headerLength (1 byte) */
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Stream_Write_UINT8(s, TYPE_ID_AUTODETECT_REQUEST); /* headerTypeId (1 byte) */
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Stream_Write_UINT16(s, sequenceNumber); /* sequenceNumber (2 bytes) */
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Stream_Write_UINT16(s, requestType); /* requestType (2 bytes) */
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return rdp_send_message_channel_pdu(context->rdp, s, SEC_AUTODETECT_REQ);
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}
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static BOOL autodetect_send_continuous_bandwidth_measure_start(rdpContext* context, UINT16 sequenceNumber)
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{
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return autodetect_send_bandwidth_measure_start(context, sequenceNumber, RDP_BW_START_REQUEST_TYPE_CONTINUOUS);
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}
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BOOL autodetect_send_connecttime_bandwidth_measure_start(rdpContext* context, UINT16 sequenceNumber)
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{
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return autodetect_send_bandwidth_measure_start(context, sequenceNumber, RDP_BW_START_REQUEST_TYPE_CONNECTTIME);
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}
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BOOL autodetect_send_bandwidth_measure_payload(rdpContext* context, UINT16 payloadLength, UINT16 sequenceNumber)
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{
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wStream* s;
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UCHAR *buffer = NULL;
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s = rdp_message_channel_pdu_init(context->rdp);
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if (!s)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "sending Bandwidth Measure Payload PDU -> payloadLength=%u", payloadLength);
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/* 4-bytes aligned */
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payloadLength &= ~3;
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if (!Stream_EnsureRemainingCapacity(s, 8 + payloadLength))
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{
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Stream_Release(s);
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return FALSE;
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}
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Stream_Write_UINT8(s, 0x08); /* headerLength (1 byte) */
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Stream_Write_UINT8(s, TYPE_ID_AUTODETECT_REQUEST); /* headerTypeId (1 byte) */
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Stream_Write_UINT16(s, sequenceNumber); /* sequenceNumber (2 bytes) */
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Stream_Write_UINT16(s, RDP_BW_PAYLOAD_REQUEST_TYPE); /* requestType (2 bytes) */
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Stream_Write_UINT16(s, payloadLength); /* payloadLength (2 bytes) */
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/* Random data (better measurement in case the line is compressed) */
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buffer = (UCHAR *)malloc(payloadLength);
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if (NULL == buffer)
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{
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return FALSE;
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}
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BCryptGenRandom(NULL, buffer, payloadLength, 0L);
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Stream_Write(s, buffer, payloadLength);
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return rdp_send_message_channel_pdu(context->rdp, s, SEC_AUTODETECT_REQ);
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}
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static BOOL autodetect_send_bandwidth_measure_stop(rdpContext* context, UINT16 payloadLength, UINT16 sequenceNumber, UINT16 requestType)
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{
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wStream* s;
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UCHAR *buffer = NULL;
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s = rdp_message_channel_pdu_init(context->rdp);
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if (!s)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "sending Bandwidth Measure Stop PDU -> payloadLength=%u", payloadLength);
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/* 4-bytes aligned */
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payloadLength &= ~3;
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Stream_Write_UINT8(s, requestType == RDP_BW_STOP_REQUEST_TYPE_CONNECTTIME ? 0x08 : 0x06); /* headerLength (1 byte) */
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Stream_Write_UINT8(s, TYPE_ID_AUTODETECT_REQUEST); /* headerTypeId (1 byte) */
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Stream_Write_UINT16(s, sequenceNumber); /* sequenceNumber (2 bytes) */
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Stream_Write_UINT16(s, requestType); /* requestType (2 bytes) */
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if (requestType == RDP_BW_STOP_REQUEST_TYPE_CONNECTTIME)
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{
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Stream_Write_UINT16(s, payloadLength); /* payloadLength (2 bytes) */
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if (payloadLength > 0)
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{
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if (!Stream_EnsureRemainingCapacity(s, payloadLength))
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{
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Stream_Release(s);
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return FALSE;
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}
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/* Random data (better measurement in case the line is compressed) */
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buffer = malloc(payloadLength);
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if (NULL == buffer)
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{
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return FALSE;
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}
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BCryptGenRandom(NULL, buffer, payloadLength, 0L);
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Stream_Write(s, buffer, payloadLength);
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}
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}
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return rdp_send_message_channel_pdu(context->rdp, s, SEC_AUTODETECT_REQ);
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}
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static BOOL autodetect_send_continuous_bandwidth_measure_stop(rdpContext* context, UINT16 sequenceNumber)
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{
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return autodetect_send_bandwidth_measure_stop(context, 0, sequenceNumber, RDP_BW_STOP_REQUEST_TYPE_CONTINUOUS);
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}
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BOOL autodetect_send_connecttime_bandwidth_measure_stop(rdpContext* context, UINT16 payloadLength, UINT16 sequenceNumber)
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{
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return autodetect_send_bandwidth_measure_stop(context, payloadLength, sequenceNumber, RDP_BW_STOP_REQUEST_TYPE_CONNECTTIME);
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}
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static BOOL autodetect_send_bandwidth_measure_results(rdpRdp* rdp, UINT16 responseType, UINT16 sequenceNumber)
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{
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wStream* s;
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UINT32 timeDelta;
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/* Compute the total time */
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timeDelta = GetTickCount() - rdp->autodetect->bandwidthMeasureStartTime;
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/* Send the result PDU to the server */
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s = rdp_message_channel_pdu_init(rdp);
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if (!s)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "sending Bandwidth Measure Results PDU -> timeDelta=%u, byteCount=%u", timeDelta, rdp->autodetect->bandwidthMeasureByteCount);
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Stream_Write_UINT8(s, 0x0E); /* headerLength (1 byte) */
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Stream_Write_UINT8(s, TYPE_ID_AUTODETECT_RESPONSE); /* headerTypeId (1 byte) */
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Stream_Write_UINT16(s, sequenceNumber); /* sequenceNumber (2 bytes) */
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Stream_Write_UINT16(s, responseType); /* responseType (1 byte) */
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Stream_Write_UINT32(s, timeDelta); /* timeDelta (4 bytes) */
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Stream_Write_UINT32(s, rdp->autodetect->bandwidthMeasureByteCount); /* byteCount (4 bytes) */
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return rdp_send_message_channel_pdu(rdp, s, SEC_AUTODETECT_RSP);
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}
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static BOOL autodetect_send_netchar_result(rdpContext* context, UINT16 sequenceNumber)
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{
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wStream* s;
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s = rdp_message_channel_pdu_init(context->rdp);
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if (!s)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "sending Bandwidth Network Characteristics Result PDU");
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if (context->rdp->autodetect->netCharBandwidth > 0)
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{
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Stream_Write_UINT8(s, 0x12); /* headerLength (1 byte) */
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Stream_Write_UINT8(s, TYPE_ID_AUTODETECT_REQUEST); /* headerTypeId (1 byte) */
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Stream_Write_UINT16(s, sequenceNumber); /* sequenceNumber (2 bytes) */
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Stream_Write_UINT16(s, 0x08C0); /* requestType (2 bytes) */
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Stream_Write_UINT32(s, context->rdp->autodetect->netCharBaseRTT); /* baseRTT (4 bytes) */
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Stream_Write_UINT32(s, context->rdp->autodetect->netCharBandwidth); /* bandwidth (4 bytes) */
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Stream_Write_UINT32(s, context->rdp->autodetect->netCharAverageRTT); /* averageRTT (4 bytes) */
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}
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else
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{
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Stream_Write_UINT8(s, 0x0E); /* headerLength (1 byte) */
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Stream_Write_UINT8(s, TYPE_ID_AUTODETECT_REQUEST); /* headerTypeId (1 byte) */
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Stream_Write_UINT16(s, sequenceNumber); /* sequenceNumber (2 bytes) */
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Stream_Write_UINT16(s, 0x0840); /* requestType (2 bytes) */
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Stream_Write_UINT32(s, context->rdp->autodetect->netCharBaseRTT); /* baseRTT (4 bytes) */
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Stream_Write_UINT32(s, context->rdp->autodetect->netCharAverageRTT); /* averageRTT (4 bytes) */
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}
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return rdp_send_message_channel_pdu(context->rdp, s, SEC_AUTODETECT_REQ);
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}
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BOOL autodetect_send_netchar_sync(rdpRdp* rdp, UINT16 sequenceNumber)
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{
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wStream* s;
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/* Send the response PDU to the server */
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s = rdp_message_channel_pdu_init(rdp);
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if (!s)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "sending Network Characteristics Sync PDU -> bandwidth=%u, rtt=%u", rdp->autodetect->netCharBandwidth, rdp->autodetect->netCharAverageRTT);
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Stream_Write_UINT8(s, 0x0E); /* headerLength (1 byte) */
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Stream_Write_UINT8(s, TYPE_ID_AUTODETECT_RESPONSE); /* headerTypeId (1 byte) */
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Stream_Write_UINT16(s, sequenceNumber); /* sequenceNumber (2 bytes) */
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Stream_Write_UINT16(s, RDP_NETCHAR_SYNC_RESPONSE_TYPE); /* responseType (1 byte) */
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Stream_Write_UINT32(s, rdp->autodetect->netCharBandwidth); /* bandwidth (4 bytes) */
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Stream_Write_UINT32(s, rdp->autodetect->netCharAverageRTT); /* rtt (4 bytes) */
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return rdp_send_message_channel_pdu(rdp, s, SEC_AUTODETECT_RSP);
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}
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static BOOL autodetect_recv_rtt_measure_request(rdpRdp* rdp, wStream* s, AUTODETECT_REQ_PDU* autodetectReqPdu)
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{
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if (autodetectReqPdu->headerLength != 0x06)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "received RTT Measure Request PDU");
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/* Send a response to the server */
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return autodetect_send_rtt_measure_response(rdp, autodetectReqPdu->sequenceNumber);
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}
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static BOOL autodetect_recv_rtt_measure_response(rdpRdp* rdp, wStream* s, AUTODETECT_RSP_PDU* autodetectRspPdu)
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{
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BOOL success = TRUE;
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if (autodetectRspPdu->headerLength != 0x06)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "received RTT Measure Response PDU");
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rdp->autodetect->netCharAverageRTT = GetTickCount() - rdp->autodetect->rttMeasureStartTime;
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if (rdp->autodetect->netCharBaseRTT == 0 || rdp->autodetect->netCharBaseRTT > rdp->autodetect->netCharAverageRTT)
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rdp->autodetect->netCharBaseRTT = rdp->autodetect->netCharAverageRTT;
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IFCALLRET(rdp->autodetect->RTTMeasureResponse, success, rdp->context, autodetectRspPdu->sequenceNumber);
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return success;
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}
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static BOOL autodetect_recv_bandwidth_measure_start(rdpRdp* rdp, wStream* s, AUTODETECT_REQ_PDU* autodetectReqPdu)
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{
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if (autodetectReqPdu->headerLength != 0x06)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "received Bandwidth Measure Start PDU - time=%lu", GetTickCount());
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/* Initialize bandwidth measurement parameters */
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rdp->autodetect->bandwidthMeasureStartTime = GetTickCount();
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rdp->autodetect->bandwidthMeasureByteCount = 0;
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/* Continuous Auto-Detection: mark the start of the measurement */
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if (autodetectReqPdu->requestType == RDP_BW_START_REQUEST_TYPE_CONTINUOUS)
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{
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rdp->autodetect->bandwidthMeasureStarted = TRUE;
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}
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return TRUE;
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}
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static BOOL autodetect_recv_bandwidth_measure_payload(rdpRdp* rdp, wStream* s, AUTODETECT_REQ_PDU* autodetectReqPdu)
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{
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UINT16 payloadLength;
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if (autodetectReqPdu->headerLength != 0x08)
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return FALSE;
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if (Stream_GetRemainingLength(s) < 2)
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return FALSE;
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Stream_Read_UINT16(s, payloadLength); /* payloadLength (2 bytes) */
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WLog_DBG(AUTODETECT_TAG, "received Bandwidth Measure Payload PDU -> payloadLength=%u", payloadLength);
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/* Add the payload length to the bandwidth measurement parameters */
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rdp->autodetect->bandwidthMeasureByteCount += payloadLength;
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return TRUE;
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}
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static BOOL autodetect_recv_bandwidth_measure_stop(rdpRdp* rdp, wStream* s, AUTODETECT_REQ_PDU* autodetectReqPdu)
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{
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UINT16 payloadLength;
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UINT16 responseType;
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if (autodetectReqPdu->requestType == RDP_BW_STOP_REQUEST_TYPE_CONNECTTIME)
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{
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if (autodetectReqPdu->headerLength != 0x08)
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return FALSE;
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if (Stream_GetRemainingLength(s) < 2)
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return FALSE;
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Stream_Read_UINT16(s, payloadLength); /* payloadLength (2 bytes) */
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}
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else
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{
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if (autodetectReqPdu->headerLength != 0x06)
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return FALSE;
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payloadLength = 0;
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}
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WLog_VRB(AUTODETECT_TAG, "received Bandwidth Measure Stop PDU -> payloadLength=%u", payloadLength);
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/* Add the payload length to the bandwidth measurement parameters */
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rdp->autodetect->bandwidthMeasureByteCount += payloadLength;
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/* Continuous Auto-Detection: mark the stop of the measurement */
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if (autodetectReqPdu->requestType == RDP_BW_STOP_REQUEST_TYPE_CONTINUOUS)
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{
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rdp->autodetect->bandwidthMeasureStarted = FALSE;
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}
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/* Send a response the server */
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responseType = autodetectReqPdu->requestType == RDP_BW_STOP_REQUEST_TYPE_CONNECTTIME ?
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RDP_BW_RESULTS_RESPONSE_TYPE_CONNECTTIME : RDP_BW_RESULTS_RESPONSE_TYPE_CONTINUOUS;
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return autodetect_send_bandwidth_measure_results(rdp, responseType, autodetectReqPdu->sequenceNumber);
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}
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static BOOL autodetect_recv_bandwidth_measure_results(rdpRdp* rdp, wStream* s, AUTODETECT_RSP_PDU* autodetectRspPdu)
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{
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BOOL success = TRUE;
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if (autodetectRspPdu->headerLength != 0x0E)
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return FALSE;
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WLog_VRB(AUTODETECT_TAG, "received Bandwidth Measure Results PDU");
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Stream_Read_UINT32(s, rdp->autodetect->bandwidthMeasureTimeDelta); /* timeDelta (4 bytes) */
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Stream_Read_UINT32(s, rdp->autodetect->bandwidthMeasureByteCount); /* byteCount (4 bytes) */
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if (rdp->autodetect->bandwidthMeasureTimeDelta > 0)
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rdp->autodetect->netCharBandwidth = rdp->autodetect->bandwidthMeasureByteCount * 8 / rdp->autodetect->bandwidthMeasureTimeDelta;
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else
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rdp->autodetect->netCharBandwidth = 0;
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IFCALLRET(rdp->autodetect->BandwidthMeasureResults, success, rdp->context, autodetectRspPdu->sequenceNumber);
|
|
|
|
return success;
|
|
}
|
|
|
|
static BOOL autodetect_recv_netchar_result(rdpRdp* rdp, wStream* s, AUTODETECT_REQ_PDU* autodetectReqPdu)
|
|
{
|
|
BOOL success = TRUE;
|
|
|
|
switch (autodetectReqPdu->requestType)
|
|
{
|
|
case 0x0840:
|
|
/* baseRTT and averageRTT fields are present (bandwidth field is not) */
|
|
if ((autodetectReqPdu->headerLength != 0x0E) || (Stream_GetRemainingLength(s) < 8))
|
|
return FALSE;
|
|
Stream_Read_UINT32(s, rdp->autodetect->netCharBaseRTT); /* baseRTT (4 bytes) */
|
|
Stream_Read_UINT32(s, rdp->autodetect->netCharAverageRTT); /* averageRTT (4 bytes) */
|
|
break;
|
|
|
|
case 0x0880:
|
|
/* bandwidth and averageRTT fields are present (baseRTT field is not) */
|
|
if ((autodetectReqPdu->headerLength != 0x0E) || (Stream_GetRemainingLength(s) < 8))
|
|
return FALSE;
|
|
Stream_Read_UINT32(s, rdp->autodetect->netCharBandwidth); /* bandwidth (4 bytes) */
|
|
Stream_Read_UINT32(s, rdp->autodetect->netCharAverageRTT); /* averageRTT (4 bytes) */
|
|
break;
|
|
|
|
case 0x08C0:
|
|
/* baseRTT, bandwidth, and averageRTT fields are present */
|
|
if ((autodetectReqPdu->headerLength != 0x12) || (Stream_GetRemainingLength(s) < 12))
|
|
return FALSE;
|
|
Stream_Read_UINT32(s, rdp->autodetect->netCharBaseRTT); /* baseRTT (4 bytes) */
|
|
Stream_Read_UINT32(s, rdp->autodetect->netCharBandwidth); /* bandwidth (4 bytes) */
|
|
Stream_Read_UINT32(s, rdp->autodetect->netCharAverageRTT); /* averageRTT (4 bytes) */
|
|
break;
|
|
}
|
|
|
|
WLog_VRB(AUTODETECT_TAG, "received Network Characteristics Result PDU -> baseRTT=%u, bandwidth=%u, averageRTT=%u", rdp->autodetect->netCharBaseRTT, rdp->autodetect->netCharBandwidth, rdp->autodetect->netCharAverageRTT);
|
|
|
|
IFCALLRET(rdp->autodetect->NetworkCharacteristicsResult, success, rdp->context, autodetectReqPdu->sequenceNumber);
|
|
|
|
return success;
|
|
}
|
|
|
|
int rdp_recv_autodetect_request_packet(rdpRdp* rdp, wStream* s)
|
|
{
|
|
AUTODETECT_REQ_PDU autodetectReqPdu;
|
|
BOOL success = FALSE;
|
|
|
|
if (Stream_GetRemainingLength(s) < 6)
|
|
return -1;
|
|
|
|
Stream_Read_UINT8(s, autodetectReqPdu.headerLength); /* headerLength (1 byte) */
|
|
Stream_Read_UINT8(s, autodetectReqPdu.headerTypeId); /* headerTypeId (1 byte) */
|
|
Stream_Read_UINT16(s, autodetectReqPdu.sequenceNumber); /* sequenceNumber (2 bytes) */
|
|
Stream_Read_UINT16(s, autodetectReqPdu.requestType); /* requestType (2 bytes) */
|
|
|
|
WLog_VRB(AUTODETECT_TAG,
|
|
"rdp_recv_autodetect_request_packet: headerLength=%u, headerTypeId=%u, sequenceNumber=%u, requestType=%04x",
|
|
autodetectReqPdu.headerLength, autodetectReqPdu.headerTypeId,
|
|
autodetectReqPdu.sequenceNumber, autodetectReqPdu.requestType);
|
|
|
|
if (autodetectReqPdu.headerTypeId != TYPE_ID_AUTODETECT_REQUEST)
|
|
return -1;
|
|
|
|
switch (autodetectReqPdu.requestType)
|
|
{
|
|
case RDP_RTT_REQUEST_TYPE_CONTINUOUS:
|
|
case RDP_RTT_REQUEST_TYPE_CONNECTTIME:
|
|
/* RTT Measure Request (RDP_RTT_REQUEST) - MS-RDPBCGR 2.2.14.1.1 */
|
|
success = autodetect_recv_rtt_measure_request(rdp, s, &autodetectReqPdu);
|
|
break;
|
|
|
|
case RDP_BW_START_REQUEST_TYPE_CONTINUOUS:
|
|
case RDP_BW_START_REQUEST_TYPE_TUNNEL:
|
|
case RDP_BW_START_REQUEST_TYPE_CONNECTTIME:
|
|
/* Bandwidth Measure Start (RDP_BW_START) - MS-RDPBCGR 2.2.14.1.2 */
|
|
success = autodetect_recv_bandwidth_measure_start(rdp, s, &autodetectReqPdu);
|
|
break;
|
|
|
|
case RDP_BW_PAYLOAD_REQUEST_TYPE:
|
|
/* Bandwidth Measure Payload (RDP_BW_PAYLOAD) - MS-RDPBCGR 2.2.14.1.3 */
|
|
success = autodetect_recv_bandwidth_measure_payload(rdp, s, &autodetectReqPdu);
|
|
break;
|
|
|
|
case RDP_BW_STOP_REQUEST_TYPE_CONNECTTIME:
|
|
case RDP_BW_STOP_REQUEST_TYPE_CONTINUOUS:
|
|
case RDP_BW_STOP_REQUEST_TYPE_TUNNEL:
|
|
/* Bandwidth Measure Stop (RDP_BW_STOP) - MS-RDPBCGR 2.2.14.1.4 */
|
|
success = autodetect_recv_bandwidth_measure_stop(rdp, s, &autodetectReqPdu);
|
|
break;
|
|
|
|
case 0x0840:
|
|
case 0x0880:
|
|
case 0x08C0:
|
|
/* Network Characteristics Result (RDP_NETCHAR_RESULT) - MS-RDPBCGR 2.2.14.1.5 */
|
|
success = autodetect_recv_netchar_result(rdp, s, &autodetectReqPdu);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return success ? 0 : -1;
|
|
}
|
|
|
|
int rdp_recv_autodetect_response_packet(rdpRdp* rdp, wStream* s)
|
|
{
|
|
AUTODETECT_RSP_PDU autodetectRspPdu;
|
|
BOOL success = FALSE;
|
|
|
|
if (Stream_GetRemainingLength(s) < 6)
|
|
return -1;
|
|
|
|
Stream_Read_UINT8(s, autodetectRspPdu.headerLength); /* headerLength (1 byte) */
|
|
Stream_Read_UINT8(s, autodetectRspPdu.headerTypeId); /* headerTypeId (1 byte) */
|
|
Stream_Read_UINT16(s, autodetectRspPdu.sequenceNumber); /* sequenceNumber (2 bytes) */
|
|
Stream_Read_UINT16(s, autodetectRspPdu.responseType); /* responseType (2 bytes) */
|
|
|
|
WLog_VRB(AUTODETECT_TAG,
|
|
"rdp_recv_autodetect_response_packet: headerLength=%u, headerTypeId=%u, sequenceNumber=%u, requestType=%04x",
|
|
autodetectRspPdu.headerLength, autodetectRspPdu.headerTypeId,
|
|
autodetectRspPdu.sequenceNumber, autodetectRspPdu.responseType);
|
|
|
|
if (autodetectRspPdu.headerTypeId != TYPE_ID_AUTODETECT_RESPONSE)
|
|
return -1;
|
|
|
|
switch (autodetectRspPdu.responseType)
|
|
{
|
|
case RDP_RTT_RESPONSE_TYPE:
|
|
/* RTT Measure Response (RDP_RTT_RESPONSE) - MS-RDPBCGR 2.2.14.2.1 */
|
|
success = autodetect_recv_rtt_measure_response(rdp, s, &autodetectRspPdu);
|
|
break;
|
|
|
|
case RDP_BW_RESULTS_RESPONSE_TYPE_CONNECTTIME:
|
|
case RDP_BW_RESULTS_RESPONSE_TYPE_CONTINUOUS:
|
|
/* Bandwidth Measure Results (RDP_BW_RESULTS) - MS-RDPBCGR 2.2.14.2.2 */
|
|
success = autodetect_recv_bandwidth_measure_results(rdp, s, &autodetectRspPdu);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return success ? 0 : -1;
|
|
}
|
|
|
|
rdpAutoDetect* autodetect_new(void)
|
|
{
|
|
rdpAutoDetect* autoDetect = (rdpAutoDetect*) calloc(1, sizeof(rdpAutoDetect));
|
|
|
|
if (autoDetect)
|
|
{
|
|
|
|
}
|
|
|
|
return autoDetect;
|
|
}
|
|
|
|
void autodetect_free(rdpAutoDetect* autoDetect)
|
|
{
|
|
free(autoDetect);
|
|
}
|
|
|
|
void autodetect_register_server_callbacks(rdpAutoDetect* autodetect)
|
|
{
|
|
autodetect->RTTMeasureRequest = autodetect_send_continuous_rtt_measure_request;
|
|
autodetect->BandwidthMeasureStart = autodetect_send_continuous_bandwidth_measure_start;
|
|
autodetect->BandwidthMeasureStop = autodetect_send_continuous_bandwidth_measure_stop;
|
|
autodetect->NetworkCharacteristicsResult = autodetect_send_netchar_result;
|
|
}
|