/usr/include/opal/t120/h323t120.h is in libopal-dev 3.10.2~dfsg-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 | /*
* h323t120.h
*
* H.323 T.120 logical channel establishment
*
* Open H323 Library
*
* Copyright (c) 2001 Equivalence Pty. Ltd.
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Open H323 Library.
*
* The Initial Developer of the Original Code is Equivalence Pty. Ltd.
*
* Contributor(s): ______________________________________.
*
* $Revision: 21293 $
* $Author: rjongbloed $
* $Date: 2008-10-12 18:24:41 -0500 (Sun, 12 Oct 2008) $
*/
#ifndef OPAL_T120_H323T120_H
#define OPAL_T120_H323T120_H
#ifdef P_USE_PRAGMA
#pragma interface
#endif
#include <opal/buildopts.h>
#include <h323/h323caps.h>
class OpalT120Protocol;
///////////////////////////////////////////////////////////////////////////////
/**This class describes the T.120 logical channel.
*/
class H323_T120Capability : public H323DataCapability
{
PCLASSINFO(H323_T120Capability, H323DataCapability);
public:
/**@name Construction */
//@{
/**Create capability.
*/
H323_T120Capability();
//@}
/**@name Overrides from class PObject */
//@{
/**Create a copy of the object.
*/
virtual PObject * Clone() const;
//@}
/**@name Identification functions */
//@{
/**Get the sub-type of the capability. This is a code dependent on the
main type of the capability.
This returns the e_t120 enum value from the protocol ASN
H245_DataApplicationCapability_application class.
*/
virtual unsigned GetSubType() const;
/**Get the name of the media data format this class represents.
*/
virtual PString GetFormatName() const;
//@}
/**@name Operations */
//@{
/**Create the channel instance, allocating resources as required.
*/
virtual H323Channel * CreateChannel(
H323Connection & connection, ///< Owner connection for channel
H323Channel::Directions dir, ///< Direction of channel
unsigned sessionID, ///< Session ID for RTP channel
const H245_H2250LogicalChannelParameters * param
///< Parameters for channel
) const;
//@}
/**@name Protocol manipulation */
//@{
/**This function is called whenever and outgoing TerminalCapabilitySet
or OpenLogicalChannel PDU is being constructed for the control channel.
It allows the capability to set the PDU fields from information in
members specific to the class.
The default behaviour sets the pdu and calls OnSendingPDU with a
H245_DataProtocolCapability parameter.
*/
virtual PBoolean OnSendingPDU(
H245_DataApplicationCapability & pdu
) const;
/**This function is called whenever and outgoing RequestMode
PDU is being constructed for the control channel. It allows the
capability to set the PDU fields from information in members specific
to the class.
The default behaviour sets the pdu and calls OnSendingPDU with a
H245_DataProtocolCapability parameter.
*/
virtual PBoolean OnSendingPDU(
H245_DataMode & pdu ///< PDU to set information on
) const;
/**This function is called whenever and outgoing PDU is being constructed
for the control channel. It allows the capability to set the PDU fields
from information in members specific to the class.
The default behaviour sets separate LAN stack.
*/
virtual PBoolean OnSendingPDU(
H245_DataProtocolCapability & pdu ///< PDU to set information on
) const;
/**This function is called whenever and incoming TerminalCapabilitySet
or OpenLogicalChannel PDU has been used to construct the control
channel. It allows the capability to set from the PDU fields,
information in members specific to the class.
The default behaviour gets the data rate field from the PDU.
*/
virtual PBoolean OnReceivedPDU(
const H245_DataApplicationCapability & pdu ///< PDU to set information on
);
//@}
/**@name Member access */
//@{
/**Get the dynamic port capability.
Indicates endpoint can use something other than port 1503.
*/
PBoolean GetDynamicPortCapability() const { return dynamicPortCapability; }
/**Set the dynamic port capability.
Indicates endpoint can use something other than port 1503.
*/
void SetDynamicPortCapability(PBoolean dynamic) { dynamicPortCapability = dynamic; }
//@}
protected:
PBoolean dynamicPortCapability;
};
/**This class describes the T.120 logical channel.
*/
class H323_T120Channel : public H323DataChannel
{
PCLASSINFO(H323_T120Channel, H323DataChannel);
public:
/**@name Construction */
//@{
/**Create a new channel.
*/
H323_T120Channel(
H323Connection & connection, ///< Connection to endpoint for channel
const H323Capability & capability, ///< Capability channel is using
Directions direction, ///< Direction of channel
unsigned sessionID ///< Session ID for channel
);
//@}
/**@name Overrides from class H323Channel */
//@{
/**Handle channel data reception.
This is called by the thread started by the Start() function and is
typically a loop reading from the transport and handling PDU's.
The default behaviour here is to call HandleChannel()
*/
virtual void Receive();
/**Handle channel data transmission.
This is called by the thread started by the Start() function and is
typically a loop reading from the codec and writing to the transport
(eg an RTP_session).
The default behaviour here is to call HandleChannel()
*/
virtual void Transmit();
/**Fill out the OpenLogicalChannel PDU for the particular channel type.
*/
virtual PBoolean OnSendingPDU(
H245_OpenLogicalChannel & openPDU ///< Open PDU to send.
) const;
/**This is called when request to create a channel is received from a
remote machine and is about to be acknowledged.
*/
virtual void OnSendOpenAck(
const H245_OpenLogicalChannel & open, ///< Open PDU
H245_OpenLogicalChannelAck & ack ///< Acknowledgement PDU
) const;
/**This is called after a request to create a channel occurs from the
local machine via the H245LogicalChannelDict::Open() function, and
the request has been acknowledged by the remote endpoint.
The default makes sure the parameters are compatible and passes on
the PDU to the rtp session.
*/
virtual PBoolean OnReceivedPDU(
const H245_OpenLogicalChannel & pdu, ///< Open PDU
unsigned & errorCode ///< Error code on failure
);
/**This is called after a request to create a channel occurs from the
local machine via the H245LogicalChannelDict::Open() function, and
the request has been acknowledged by the remote endpoint.
The default makes sure the parameters are compatible and passes on
the PDU to the rtp session.
*/
virtual PBoolean OnReceivedAckPDU(
const H245_OpenLogicalChannelAck & pdu ///< Acknowledgement PDU
);
//@}
virtual void HandleChannel();
protected:
OpalT120Protocol * t120handler;
};
#endif // OPAL_T120_H323T120_H
/////////////////////////////////////////////////////////////////////////////
|