855 lines
20 KiB
C
855 lines
20 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* T.125 Multipoint Communication Service (MCS) Protocol
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*
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* Copyright 2011 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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#include "gcc.h"
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#include "mcs.h"
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#include "tpdu.h"
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#include "tpkt.h"
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/**
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* T.125 MCS is defined in:
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*
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* http://www.itu.int/rec/T-REC-T.125-199802-I/
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* ITU-T T.125 Multipoint Communication Service Protocol Specification
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*/
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/**
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* Connect-Initial ::= [APPLICATION 101] IMPLICIT SEQUENCE
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* {
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* callingDomainSelector OCTET_STRING,
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* calledDomainSelector OCTET_STRING,
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* upwardFlag BOOLEAN,
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* targetParameters DomainParameters,
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* minimumParameters DomainParameters,
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* maximumParameters DomainParameters,
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* userData OCTET_STRING
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* }
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*
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* DomainParameters ::= SEQUENCE
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* {
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* maxChannelIds INTEGER (0..MAX),
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* maxUserIds INTEGER (0..MAX),
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* maxTokenIds INTEGER (0..MAX),
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* numPriorities INTEGER (0..MAX),
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* minThroughput INTEGER (0..MAX),
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* maxHeight INTEGER (0..MAX),
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* maxMCSPDUsize INTEGER (0..MAX),
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* protocolVersion INTEGER (0..MAX)
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* }
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*
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* Connect-Response ::= [APPLICATION 102] IMPLICIT SEQUENCE
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* {
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* result Result,
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* calledConnectId INTEGER (0..MAX),
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* domainParameters DomainParameters,
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* userData OCTET_STRING
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* }
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*
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* Result ::= ENUMERATED
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* {
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* rt-successful (0),
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* rt-domain-merging (1),
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* rt-domain-not-hierarchical (2),
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* rt-no-such-channel (3),
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* rt-no-such-domain (4),
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* rt-no-such-user (5),
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* rt-not-admitted (6),
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* rt-other-user-id (7),
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* rt-parameters-unacceptable (8),
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* rt-token-not-available (9),
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* rt-token-not-possessed (10),
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* rt-too-many-channels (11),
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* rt-too-many-tokens (12),
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* rt-too-many-users (13),
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* rt-unspecified-failure (14),
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* rt-user-rejected (15)
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* }
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*
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* ErectDomainRequest ::= [APPLICATION 1] IMPLICIT SEQUENCE
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* {
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* subHeight INTEGER (0..MAX),
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* subInterval INTEGER (0..MAX)
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* }
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*
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* AttachUserRequest ::= [APPPLICATION 10] IMPLICIT SEQUENCE
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* {
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* }
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*
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* AttachUserConfirm ::= [APPLICATION 11] IMPLICIT SEQUENCE
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* {
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* result Result,
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* initiator UserId OPTIONAL
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* }
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*
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* ChannelJoinRequest ::= [APPLICATION 14] IMPLICIT SEQUENCE
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* {
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* initiator UserId,
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* channelId ChannelId
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* }
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*
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* ChannelJoinConfirm ::= [APPLICATION 15] IMPLICIT SEQUENCE
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* {
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* result Result,
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* initiator UserId,
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* requested ChannelId,
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* channelId ChannelId OPTIONAL
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* }
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*
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* SendDataRequest ::= [APPLICATION 25] IMPLICIT SEQUENCE
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* {
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* initiator UserId,
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* channelId ChannelId,
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* dataPriority DataPriority,
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* segmentation Segmentation,
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* userData OCTET_STRING
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* }
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*
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* DataPriority ::= CHOICE
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* {
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* top NULL,
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* high NULL,
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* medium NULL,
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* low NULL,
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* ...
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* }
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*
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* Segmentation ::= BIT_STRING
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* {
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* begin (0),
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* end (1)
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* } (SIZE(2))
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*
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* SendDataIndication ::= SEQUENCE
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* {
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* initiator UserId,
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* channelId ChannelId,
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* reliability BOOLEAN,
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* domainReferenceID INTEGER (0..65535) OPTIONAL,
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* dataPriority DataPriority,
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* segmentation Segmentation,
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* userData OCTET_STRING,
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* totalDataSize INTEGER OPTIONAL,
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* nonStandard SEQUENCE OF NonStandardParameter OPTIONAL,
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* ...
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* }
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*
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*/
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static const uint8 callingDomainSelector[1] = "\x01";
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static const uint8 calledDomainSelector[1] = "\x01";
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/*
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static const char* const mcs_result_enumerated[] =
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{
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"rt-successful",
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"rt-domain-merging",
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"rt-domain-not-hierarchical",
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"rt-no-such-channel",
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"rt-no-such-domain",
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"rt-no-such-user",
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"rt-not-admitted",
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"rt-other-user-id",
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"rt-parameters-unacceptable",
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"rt-token-not-available",
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"rt-token-not-possessed",
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"rt-too-many-channels",
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"rt-too-many-tokens",
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"rt-too-many-users",
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"rt-unspecified-failure",
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"rt-user-rejected"
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};
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*/
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/**
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* Read a DomainMCSPDU header.
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* @param s stream
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* @param domainMCSPDU DomainMCSPDU type
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* @param length TPKT length
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* @return
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*/
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boolean mcs_read_domain_mcspdu_header(STREAM* s, enum DomainMCSPDU* domainMCSPDU, uint16* length)
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{
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uint8 choice;
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enum DomainMCSPDU MCSPDU;
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*length = tpkt_read_header(s);
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if (tpdu_read_data(s) == 0)
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return false;
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MCSPDU = *domainMCSPDU;
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per_read_choice(s, &choice);
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*domainMCSPDU = (choice >> 2);
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if (*domainMCSPDU != MCSPDU)
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return false;
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return true;
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}
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/**
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* Write a DomainMCSPDU header.
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* @param s stream
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* @param domainMCSPDU DomainMCSPDU type
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* @param length TPKT length
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*/
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void mcs_write_domain_mcspdu_header(STREAM* s, enum DomainMCSPDU domainMCSPDU, uint16 length, uint8 options)
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{
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tpkt_write_header(s, length);
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tpdu_write_data(s);
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per_write_choice(s, (domainMCSPDU << 2) | options);
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}
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/**
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* Initialize MCS Domain Parameters.
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* @param domainParameters domain parameters
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* @param maxChannelIds max channel ids
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* @param maxUserIds max user ids
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* @param maxTokenIds max token ids
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* @param maxMCSPDUsize max MCS PDU size
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*/
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static void mcs_init_domain_parameters(DomainParameters* domainParameters,
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uint32 maxChannelIds, uint32 maxUserIds, uint32 maxTokenIds, uint32 maxMCSPDUsize)
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{
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domainParameters->maxChannelIds = maxChannelIds;
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domainParameters->maxUserIds = maxUserIds;
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domainParameters->maxTokenIds = maxTokenIds;
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domainParameters->maxMCSPDUsize = maxMCSPDUsize;
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domainParameters->numPriorities = 1;
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domainParameters->minThroughput = 0;
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domainParameters->maxHeight = 1;
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domainParameters->protocolVersion = 2;
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}
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/**
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* Read MCS Domain Parameters.
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* @param s stream
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* @param domainParameters domain parameters
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*/
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boolean mcs_read_domain_parameters(STREAM* s, DomainParameters* domainParameters)
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{
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int length;
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ber_read_sequence_tag(s, &length);
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ber_read_integer(s, &(domainParameters->maxChannelIds));
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ber_read_integer(s, &(domainParameters->maxUserIds));
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ber_read_integer(s, &(domainParameters->maxTokenIds));
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ber_read_integer(s, &(domainParameters->numPriorities));
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ber_read_integer(s, &(domainParameters->minThroughput));
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ber_read_integer(s, &(domainParameters->maxHeight));
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ber_read_integer(s, &(domainParameters->maxMCSPDUsize));
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ber_read_integer(s, &(domainParameters->protocolVersion));
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return true;
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}
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/**
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* Write MCS Domain Parameters.
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* @param s stream
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* @param domainParameters domain parameters
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*/
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void mcs_write_domain_parameters(STREAM* s, DomainParameters* domainParameters)
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{
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int length;
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uint8 *bm, *em;
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stream_get_mark(s, bm);
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stream_seek(s, 2);
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ber_write_integer(s, domainParameters->maxChannelIds);
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ber_write_integer(s, domainParameters->maxUserIds);
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ber_write_integer(s, domainParameters->maxTokenIds);
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ber_write_integer(s, domainParameters->numPriorities);
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ber_write_integer(s, domainParameters->minThroughput);
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ber_write_integer(s, domainParameters->maxHeight);
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ber_write_integer(s, domainParameters->maxMCSPDUsize);
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ber_write_integer(s, domainParameters->protocolVersion);
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stream_get_mark(s, em);
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length = (em - bm) - 2;
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stream_set_mark(s, bm);
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ber_write_sequence_tag(s, length);
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stream_set_mark(s, em);
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}
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/**
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* Print MCS Domain Parameters.
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* @param domainParameters domain parameters
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*/
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void mcs_print_domain_parameters(DomainParameters* domainParameters)
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{
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printf("DomainParameters {\n");
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printf("\tmaxChannelIds:%d\n", domainParameters->maxChannelIds);
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printf("\tmaxUserIds:%d\n", domainParameters->maxUserIds);
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printf("\tmaxTokenIds:%d\n", domainParameters->maxTokenIds);
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printf("\tnumPriorities:%d\n", domainParameters->numPriorities);
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printf("\tminThroughput:%d\n", domainParameters->minThroughput);
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printf("\tmaxHeight:%d\n", domainParameters->maxHeight);
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printf("\tmaxMCSPDUsize:%d\n", domainParameters->maxMCSPDUsize);
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printf("\tprotocolVersion:%d\n", domainParameters->protocolVersion);
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printf("}\n");
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}
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/**
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* Read an MCS Connect Initial PDU.\n
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* @msdn{cc240508}
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* @param mcs MCS module
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* @param s stream
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*/
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boolean mcs_recv_connect_initial(rdpMcs* mcs, STREAM* s)
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{
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int length;
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boolean upwardFlag;
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tpkt_read_header(s);
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if (tpdu_read_data(s) == 0)
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return false;
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if (!ber_read_application_tag(s, MCS_TYPE_CONNECT_INITIAL, &length))
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return false;
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/* callingDomainSelector (OCTET_STRING) */
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if (!ber_read_octet_string(s, &length))
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return false;
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stream_seek(s, length);
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/* calledDomainSelector (OCTET_STRING) */
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if (!ber_read_octet_string(s, &length))
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return false;
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stream_seek(s, length);
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/* upwardFlag (BOOLEAN) */
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if (!ber_read_boolean(s, &upwardFlag))
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return false;
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/* targetParameters (DomainParameters) */
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mcs_read_domain_parameters(s, &mcs->targetParameters);
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/* minimumParameters (DomainParameters) */
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mcs_read_domain_parameters(s, &mcs->minimumParameters);
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/* maximumParameters (DomainParameters) */
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mcs_read_domain_parameters(s, &mcs->maximumParameters);
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if (!ber_read_octet_string(s, &length))
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return false;
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if (!gcc_read_conference_create_request(s, mcs->transport->settings))
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return false;
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return true;
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}
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/**
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* Write an MCS Connect Initial PDU.\n
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* @msdn{cc240508}
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* @param s stream
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* @param mcs MCS module
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* @param user_data GCC Conference Create Request
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*/
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void mcs_write_connect_initial(STREAM* s, rdpMcs* mcs, STREAM* user_data)
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{
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int length;
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uint8 *bm, *em;
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int gcc_CCrq_length = stream_get_length(user_data);
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stream_get_mark(s, bm);
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stream_seek(s, 5);
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/* callingDomainSelector (OCTET_STRING) */
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ber_write_octet_string(s, callingDomainSelector, sizeof(callingDomainSelector));
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/* calledDomainSelector (OCTET_STRING) */
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ber_write_octet_string(s, calledDomainSelector, sizeof(calledDomainSelector));
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/* upwardFlag (BOOLEAN) */
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ber_write_boolean(s, true);
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/* targetParameters (DomainParameters) */
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mcs_write_domain_parameters(s, &mcs->targetParameters);
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/* minimumParameters (DomainParameters) */
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mcs_write_domain_parameters(s, &mcs->minimumParameters);
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/* maximumParameters (DomainParameters) */
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mcs_write_domain_parameters(s, &mcs->maximumParameters);
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/* userData (OCTET_STRING) */
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ber_write_octet_string(s, user_data->data, gcc_CCrq_length);
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stream_get_mark(s, em);
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length = (em - bm) - 5;
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stream_set_mark(s, bm);
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/* Connect-Initial (APPLICATION 101, IMPLICIT SEQUENCE) */
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ber_write_application_tag(s, MCS_TYPE_CONNECT_INITIAL, length);
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stream_set_mark(s, em);
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}
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/**
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* Write an MCS Connect Response PDU.\n
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* @msdn{cc240508}
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* @param s stream
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* @param mcs MCS module
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* @param user_data GCC Conference Create Response
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*/
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void mcs_write_connect_response(STREAM* s, rdpMcs* mcs, STREAM* user_data)
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{
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int length;
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uint8 *bm, *em;
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int gcc_CCrsp_length = stream_get_length(user_data);
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stream_get_mark(s, bm);
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stream_seek(s, 3);
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ber_write_enumerated(s, 0, MCS_Result_enum_length);
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ber_write_integer(s, 0); /* calledConnectId */
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mcs->domainParameters = mcs->targetParameters;
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mcs_write_domain_parameters(s, &(mcs->domainParameters));
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/* userData (OCTET_STRING) */
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ber_write_octet_string(s, user_data->data, gcc_CCrsp_length);
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stream_get_mark(s, em);
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length = (em - bm) - 3;
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stream_set_mark(s, bm);
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ber_write_application_tag(s, MCS_TYPE_CONNECT_RESPONSE, length);
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stream_set_mark(s, em);
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}
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/**
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* Send MCS Connect Initial.\n
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* @msdn{cc240508}
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* @param mcs mcs module
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*/
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boolean mcs_send_connect_initial(rdpMcs* mcs)
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{
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STREAM* s;
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int length;
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uint8 *bm, *em;
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STREAM* gcc_CCrq;
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STREAM* client_data;
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int status;
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client_data = stream_new(512);
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gcc_write_client_data_blocks(client_data, mcs->transport->settings);
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gcc_CCrq = stream_new(512);
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gcc_write_conference_create_request(gcc_CCrq, client_data);
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length = stream_get_length(gcc_CCrq) + 7;
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s = transport_send_stream_init(mcs->transport, 1024);
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stream_get_mark(s, bm);
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stream_seek(s, 7);
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mcs_write_connect_initial(s, mcs, gcc_CCrq);
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stream_get_mark(s, em);
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length = (em - bm);
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stream_set_mark(s, bm);
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tpkt_write_header(s, length);
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tpdu_write_data(s);
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stream_set_mark(s, em);
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status = transport_write(mcs->transport, s);
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stream_free(gcc_CCrq);
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stream_free(client_data);
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return (status < 0 ? false : true);
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}
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/**
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* Read MCS Connect Response.\n
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* @msdn{cc240501}
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* @param mcs mcs module
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*/
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boolean mcs_recv_connect_response(rdpMcs* mcs, STREAM* s)
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{
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int length;
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uint8 result;
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uint32 calledConnectId;
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tpkt_read_header(s);
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if (tpdu_read_data(s) == 0)
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return false;
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ber_read_application_tag(s, MCS_TYPE_CONNECT_RESPONSE, &length);
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ber_read_enumerated(s, &result, MCS_Result_enum_length);
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ber_read_integer(s, &calledConnectId);
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if (!mcs_read_domain_parameters(s, &(mcs->domainParameters)))
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return false;
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ber_read_octet_string(s, &length);
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if (!gcc_read_conference_create_response(s, mcs->transport->settings))
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{
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printf("mcs_recv_connect_response: gcc_read_conference_create_response failed\n");
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return false;
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}
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return true;
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}
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/**
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* Send MCS Connect Response.\n
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* @msdn{cc240501}
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* @param mcs mcs module
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*/
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boolean mcs_send_connect_response(rdpMcs* mcs)
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{
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STREAM* s;
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int length;
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uint8 *bm, *em;
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STREAM* gcc_CCrsp;
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STREAM* server_data;
|
|
|
|
server_data = stream_new(512);
|
|
gcc_write_server_data_blocks(server_data, mcs->transport->settings);
|
|
|
|
gcc_CCrsp = stream_new(512);
|
|
gcc_write_conference_create_response(gcc_CCrsp, server_data);
|
|
length = stream_get_length(gcc_CCrsp) + 7;
|
|
|
|
s = transport_send_stream_init(mcs->transport, 1024);
|
|
stream_get_mark(s, bm);
|
|
stream_seek(s, 7);
|
|
|
|
mcs_write_connect_response(s, mcs, gcc_CCrsp);
|
|
stream_get_mark(s, em);
|
|
length = (em - bm);
|
|
stream_set_mark(s, bm);
|
|
|
|
tpkt_write_header(s, length);
|
|
tpdu_write_data(s);
|
|
stream_set_mark(s, em);
|
|
|
|
transport_write(mcs->transport, s);
|
|
|
|
stream_free(gcc_CCrsp);
|
|
stream_free(server_data);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Read MCS Erect Domain Request.\n
|
|
* @msdn{cc240523}
|
|
* @param mcs
|
|
* @param s stream
|
|
*/
|
|
|
|
boolean mcs_recv_erect_domain_request(rdpMcs* mcs, STREAM* s)
|
|
{
|
|
uint16 length;
|
|
enum DomainMCSPDU MCSPDU;
|
|
|
|
MCSPDU = DomainMCSPDU_ErectDomainRequest;
|
|
if (!mcs_read_domain_mcspdu_header(s, &MCSPDU, &length))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send MCS Erect Domain Request.\n
|
|
* @msdn{cc240523}
|
|
* @param mcs
|
|
*/
|
|
|
|
boolean mcs_send_erect_domain_request(rdpMcs* mcs)
|
|
{
|
|
STREAM* s;
|
|
uint16 length = 12;
|
|
s = transport_send_stream_init(mcs->transport, length);
|
|
|
|
mcs_write_domain_mcspdu_header(s, DomainMCSPDU_ErectDomainRequest, length, 0);
|
|
|
|
per_write_integer(s, 0); /* subHeight (INTEGER) */
|
|
per_write_integer(s, 0); /* subInterval (INTEGER) */
|
|
|
|
if (transport_write(mcs->transport, s) < 0)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Read MCS Attach User Request.\n
|
|
* @msdn{cc240524}
|
|
* @param mcs mcs module
|
|
* @param s stream
|
|
*/
|
|
|
|
boolean mcs_recv_attach_user_request(rdpMcs* mcs, STREAM* s)
|
|
{
|
|
uint16 length;
|
|
enum DomainMCSPDU MCSPDU;
|
|
|
|
MCSPDU = DomainMCSPDU_AttachUserRequest;
|
|
if (!mcs_read_domain_mcspdu_header(s, &MCSPDU, &length))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send MCS Attach User Request.\n
|
|
* @msdn{cc240524}
|
|
* @param mcs mcs module
|
|
*/
|
|
|
|
boolean mcs_send_attach_user_request(rdpMcs* mcs)
|
|
{
|
|
STREAM* s;
|
|
uint16 length = 8;
|
|
s = transport_send_stream_init(mcs->transport, length);
|
|
|
|
mcs_write_domain_mcspdu_header(s, DomainMCSPDU_AttachUserRequest, length, 0);
|
|
|
|
if (transport_write(mcs->transport, s) < 0)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Read MCS Attach User Confirm.\n
|
|
* @msdn{cc240525}
|
|
* @param mcs mcs module
|
|
*/
|
|
|
|
boolean mcs_recv_attach_user_confirm(rdpMcs* mcs, STREAM* s)
|
|
{
|
|
uint16 length;
|
|
uint8 result;
|
|
enum DomainMCSPDU MCSPDU;
|
|
|
|
MCSPDU = DomainMCSPDU_AttachUserConfirm;
|
|
if (!mcs_read_domain_mcspdu_header(s, &MCSPDU, &length))
|
|
return false;
|
|
|
|
per_read_enumerated(s, &result, MCS_Result_enum_length); /* result */
|
|
per_read_integer16(s, &(mcs->user_id), MCS_BASE_CHANNEL_ID); /* initiator (UserId) */
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send MCS Attach User Confirm.\n
|
|
* @msdn{cc240525}
|
|
* @param mcs mcs module
|
|
*/
|
|
|
|
boolean mcs_send_attach_user_confirm(rdpMcs* mcs)
|
|
{
|
|
STREAM* s;
|
|
uint16 length = 11;
|
|
|
|
s = transport_send_stream_init(mcs->transport, length);
|
|
|
|
mcs_write_domain_mcspdu_header(s, DomainMCSPDU_AttachUserConfirm, length, 2);
|
|
|
|
per_write_enumerated(s, 0, MCS_Result_enum_length); /* result */
|
|
mcs->user_id = 1002;
|
|
per_write_integer16(s, mcs->user_id, MCS_BASE_CHANNEL_ID); /* initiator (UserId) */
|
|
|
|
transport_write(mcs->transport, s);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Read MCS Channel Join Request.\n
|
|
* @msdn{cc240526}
|
|
* @param mcs mcs module
|
|
* @param s stream
|
|
*/
|
|
|
|
boolean mcs_recv_channel_join_request(rdpMcs* mcs, STREAM* s, uint16* channel_id)
|
|
{
|
|
uint16 length;
|
|
enum DomainMCSPDU MCSPDU;
|
|
uint16 user_id;
|
|
|
|
MCSPDU = DomainMCSPDU_ChannelJoinRequest;
|
|
if (!mcs_read_domain_mcspdu_header(s, &MCSPDU, &length))
|
|
return false;
|
|
|
|
if (!per_read_integer16(s, &user_id, MCS_BASE_CHANNEL_ID))
|
|
return false;
|
|
if (user_id != mcs->user_id)
|
|
return false;
|
|
if (!per_read_integer16(s, channel_id, 0))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send MCS Channel Join Request.\n
|
|
* @msdn{cc240526}
|
|
* @param mcs mcs module
|
|
* @param channel_id channel id
|
|
*/
|
|
|
|
boolean mcs_send_channel_join_request(rdpMcs* mcs, uint16 channel_id)
|
|
{
|
|
STREAM* s;
|
|
uint16 length = 12;
|
|
s = transport_send_stream_init(mcs->transport, 12);
|
|
|
|
mcs_write_domain_mcspdu_header(s, DomainMCSPDU_ChannelJoinRequest, length, 0);
|
|
|
|
per_write_integer16(s, mcs->user_id, MCS_BASE_CHANNEL_ID);
|
|
per_write_integer16(s, channel_id, 0);
|
|
|
|
if (transport_write(mcs->transport, s) < 0)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Read MCS Channel Join Confirm.\n
|
|
* @msdn{cc240527}
|
|
* @param mcs mcs module
|
|
*/
|
|
|
|
boolean mcs_recv_channel_join_confirm(rdpMcs* mcs, STREAM* s, uint16* channel_id)
|
|
{
|
|
uint16 length;
|
|
uint8 result;
|
|
uint16 initiator;
|
|
uint16 requested;
|
|
enum DomainMCSPDU MCSPDU;
|
|
|
|
MCSPDU = DomainMCSPDU_ChannelJoinConfirm;
|
|
if (!mcs_read_domain_mcspdu_header(s, &MCSPDU, &length))
|
|
return false;
|
|
|
|
per_read_enumerated(s, &result, MCS_Result_enum_length); /* result */
|
|
per_read_integer16(s, &initiator, MCS_BASE_CHANNEL_ID); /* initiator (UserId) */
|
|
per_read_integer16(s, &requested, 0); /* requested (ChannelId) */
|
|
per_read_integer16(s, channel_id, 0); /* channelId */
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send MCS Channel Join Confirm.\n
|
|
* @msdn{cc240527}
|
|
* @param mcs mcs module
|
|
*/
|
|
|
|
boolean mcs_send_channel_join_confirm(rdpMcs* mcs, uint16 channel_id)
|
|
{
|
|
STREAM* s;
|
|
uint16 length = 15;
|
|
s = transport_send_stream_init(mcs->transport, 15);
|
|
|
|
mcs_write_domain_mcspdu_header(s, DomainMCSPDU_ChannelJoinConfirm, length, 2);
|
|
|
|
per_write_enumerated(s, 0, MCS_Result_enum_length); /* result */
|
|
per_write_integer16(s, mcs->user_id, MCS_BASE_CHANNEL_ID); /* initiator (UserId) */
|
|
per_write_integer16(s, channel_id, 0); /* requested (ChannelId) */
|
|
per_write_integer16(s, channel_id, 0); /* channelId */
|
|
|
|
transport_write(mcs->transport, s);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send MCS Disconnect Provider Ultimatum PDU.\n
|
|
* @param mcs mcs module
|
|
*/
|
|
|
|
boolean mcs_send_disconnect_provider_ultimatum(rdpMcs* mcs)
|
|
{
|
|
STREAM* s;
|
|
uint16 length = 9;
|
|
s = transport_send_stream_init(mcs->transport, 9);
|
|
|
|
mcs_write_domain_mcspdu_header(s, DomainMCSPDU_DisconnectProviderUltimatum, length, 1);
|
|
|
|
per_write_enumerated(s, 0, 0); /* reason */
|
|
|
|
transport_write(mcs->transport, s);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Instantiate new MCS module.
|
|
* @param transport transport
|
|
* @return new MCS module
|
|
*/
|
|
|
|
rdpMcs* mcs_new(rdpTransport* transport)
|
|
{
|
|
rdpMcs* mcs;
|
|
|
|
mcs = (rdpMcs*) xzalloc(sizeof(rdpMcs));
|
|
|
|
if (mcs != NULL)
|
|
{
|
|
mcs->transport = transport;
|
|
mcs_init_domain_parameters(&mcs->targetParameters, 34, 2, 0, 0xFFFF);
|
|
mcs_init_domain_parameters(&mcs->minimumParameters, 1, 1, 1, 0x420);
|
|
mcs_init_domain_parameters(&mcs->maximumParameters, 0xFFFF, 0xFC17, 0xFFFF, 0xFFFF);
|
|
}
|
|
|
|
return mcs;
|
|
}
|
|
|
|
/**
|
|
* Free MCS module.
|
|
* @param mcs MCS module to be freed
|
|
*/
|
|
|
|
void mcs_free(rdpMcs* mcs)
|
|
{
|
|
if (mcs != NULL)
|
|
{
|
|
xfree(mcs);
|
|
}
|
|
}
|