mirror of https://github.com/FreeRDP/FreeRDP
131 lines
4.1 KiB
C
131 lines
4.1 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* T.124 Generic Conference Control (GCC)
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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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/**
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* T.124 GCC is defined in:
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*
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* http://www.itu.int/rec/T-REC-T.124-199802-S/en
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* ITU-T T.124 (02/98): Generic Conference Control
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*/
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/**
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* ConnectData ::= SEQUENCE
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* {
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* t124Identifier Key,
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* connectPDU OCTET_STRING
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* }
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*
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* Key ::= CHOICE
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* {
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* object OBJECT_IDENTIFIER,
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* h221NonStandard H221NonStandardIdentifier
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* }
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*
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* ConnectGCCPDU ::= CHOICE
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* {
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* conferenceCreateRequest ConferenceCreateRequest,
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* conferenceCreateResponse ConferenceCreateResponse,
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* conferenceQueryRequest ConferenceQueryRequest,
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* conferenceQueryResponse ConferenceQueryResponse,
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* conferenceJoinRequest ConferenceJoinRequest,
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* conferenceJoinResponse ConferenceJoinResponse,
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* conferenceInviteRequest ConferenceInviteRequest,
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* conferenceInviteResponse ConferenceInviteResponse,
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* ...
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* }
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*
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* ConferenceCreateRequest ::= SEQUENCE
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* {
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* conferenceName ConferenceName,
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* convenerPassword Password OPTIONAL,
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* password Password OPTIONAL,
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* lockedConference BOOLEAN,
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* listedConference BOOLEAN,
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* conductibleConference BOOLEAN,
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* terminationMethod TerminationMethod,
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* conductorPrivileges SET OF Privilege OPTIONAL,
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* conductedPrivileges SET OF Privilege OPTIONAL,
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* nonConductedPrivileges SET OF Privilege OPTIONAL,
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* conferenceDescription TextString OPTIONAL,
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* callerIdentifier TextString OPTIONAL,
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* userData UserData OPTIONAL,
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* ...,
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* conferencePriority ConferencePriority OPTIONAL,
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* conferenceMode ConferenceMode OPTIONAL
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* }
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*
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* ConferenceName ::= SEQUENCE
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* {
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* numeric SimpleNumericString
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* text SimpleTextString OPTIONAL,
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* ...
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* }
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*
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* SimpleNumericString ::= NumericString (SIZE (1..255)) (FROM ("0123456789"))
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*
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* UserData ::= SET OF SEQUENCE
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* {
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* key Key,
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* value OCTET_STRING OPTIONAL
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* }
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*
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* H221NonStandardIdentifier ::= OCTET STRING (SIZE (4..255))
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*
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*/
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/* http://msdn.microsoft.com/en-us/library/cc240836/ */
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/*
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* OID = 0.0.20.124.0.1
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* { itu-t(0) recommendation(0) t(20) t124(124) version(0) 1 }
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* v.1 of ITU-T Recommendation T.124 (Feb 1998): "Generic Conference Control"
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*/
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uint8 t124_02_98_oid[6] = { 0, 0, 20, 124, 0, 1 };
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void
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gcc_write_create_conference_request(STREAM* s, STREAM* user_data)
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{
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/* ConnectData */
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per_write_choice(s, 0); /* From Key select object (0) of type OBJECT_IDENTIFIER */
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per_write_object_identifier(s, t124_02_98_oid); /* ITU-T T.124 (02/98) OBJECT_IDENTIFIER */
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/* ConnectData::connectPDU (OCTET_STRING) */
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per_write_length(s, stream_get_length(user_data) + 14); /* connectPDU length */
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/* ConnectGCCPDU */
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per_write_choice(s, 0); /* From ConnectGCCPDU select conferenceCreateRequest (0) of type ConferenceCreateRequest */
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per_write_selection(s, 0x08); /* select optional userData from ConferenceCreateRequest */
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/* ConferenceCreateRequest::conferenceName */
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per_write_numeric_string(s, "1", 1, 1); /* ConferenceName::numeric */
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per_write_padding(s, 1); /* padding */
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/* UserData (SET OF SEQUENCE) */
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per_write_number_of_sets(s, 1); /* one set of UserData */
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per_write_choice(s, 0xC0); /* UserData::value present + select h221NonStandard (1) */
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/* h221NonStandard */
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per_write_octet_string(s, "Duca", 4, 4); /* h221NonStandard, client-to-server H.221 key, "Duca" */
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/* userData::value (OCTET_STRING) */
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per_write_octet_string(s, user_data->buffer, stream_get_length(user_data), 0); /* array of client data blocks */
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}
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