4 * OpenH323 Channel Driver for ASTERISK PBX.
6 * For The NuFone Network
8 * This code has been derived from code created by
9 * Michael Manousos and Mark Spencer
11 * This file is part of the chan_h323 driver for Asterisk
13 * chan_h323 is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * chan_h323 is distributed WITHOUT ANY WARRANTY; without even
19 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
20 * PURPOSE. See the GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
39 #include "chan_h323.h"
41 /** These need to be redefined here because the C++
42 side of this driver is blind to the asterisk headers */
44 /*! G.723.1 compression */
45 #define AST_FORMAT_G723_1 (1 << 0)
46 /*! GSM compression */
47 #define AST_FORMAT_GSM (1 << 1)
48 /*! Raw mu-law data (G.711) */
49 #define AST_FORMAT_ULAW (1 << 2)
50 /*! Raw A-law data (G.711) */
51 #define AST_FORMAT_ALAW (1 << 3)
53 #define AST_FORMAT_MP3 (1 << 4)
55 #define AST_FORMAT_ADPCM (1 << 5)
56 /*! Raw 16-bit Signed Linear (8000 Hz) PCM */
57 #define AST_FORMAT_SLINEAR (1 << 6)
58 /*! LPC10, 180 samples/frame */
59 #define AST_FORMAT_LPC10 (1 << 7)
61 #define AST_FORMAT_G729A (1 << 8)
62 /*! SpeeX Free Compression */
63 #define AST_FORMAT_SPEEX (1 << 9)
66 /**This class describes the G.723.1 codec capability.
68 class H323_G7231Capability : public H323AudioCapability
70 PCLASSINFO(H323_G7231Capability, H323AudioCapability);
73 BOOL annexA = TRUE /// Enable Annex A silence insertion descriptors
75 Comparison Compare(const PObject & obj) const;
77 PObject * Clone() const;
79 virtual H323Codec * CreateCodec(
80 H323Codec::Direction direction /// Direction in which this instance runs
83 unsigned GetSubType() const;
84 PString GetFormatName() const;
86 H245_AudioCapability & pdu, /// PDU to set information on
87 unsigned packetSize /// Packet size to use in capability
91 const H245_AudioCapability & pdu, /// PDU to get information from
92 unsigned & packetSize /// Packet size to use in capability
99 class MyH323EndPoint : public H323EndPoint {
101 PCLASSINFO(MyH323EndPoint, H323EndPoint);
105 int MakeCall(const PString &, PString &, unsigned int *, unsigned int);
106 BOOL ClearCall(const PString &);
107 // BOOL OnIncomingCall( H323Connection & connection, const H323SignalPDU &, H323SignalPDU &);
109 void OnClosedLogicalChannel(H323Connection &, const H323Channel &);
110 void OnConnectionEstablished(H323Connection &, const PString &);
111 void OnConnectionCleared(H323Connection &, const PString &);
112 H323Connection * CreateConnection(unsigned, void *);
113 void SendUserTone(const PString &, char);
114 H323Capabilities GetCapabilities(void);
116 PStringArray SupportedPrefixes;
118 void SetEndpointTypeInfo( H225_EndpointType & info ) const;
119 void SetGateway(void);
123 class MyH323Connection : public H323Connection {
125 PCLASSINFO(MyH323Connection, H323Connection);
128 MyH323Connection(MyH323EndPoint &, unsigned, unsigned, WORD);
131 H323Channel * CreateRealTimeLogicalChannel(const H323Capability &, H323Channel::Directions, unsigned,
132 const H245_H2250LogicalChannelParameters *);
133 H323Connection::AnswerCallResponse OnAnswerCall(const PString &, const H323SignalPDU &, H323SignalPDU &);
134 BOOL OnAlerting(const H323SignalPDU &, const PString &);
135 BOOL OnReceivedSignalSetup(const H323SignalPDU &);
136 void OnReceivedReleaseComplete(const H323SignalPDU &);
137 BOOL OnSendSignalSetup(H323SignalPDU &);
138 BOOL OnStartLogicalChannel(H323Channel &);
139 BOOL OnClosingLogicalChannel(H323Channel &);
140 void SendUserInputTone(char, unsigned);
141 void OnUserInputTone(char, unsigned, unsigned, unsigned);
142 void OnUserInputString(const PString &value);
144 PString sourceAliases;
149 PIPSocket::Address externalIpAddress; // IP address of media server
150 PIPSocket::Address remoteIpAddress; // IP Address of remote endpoint
151 WORD externalPort; // local media server Data port (control is dataPort+1)
152 WORD remotePort; // remote endpoint Data port (control is dataPort+1)
157 class MyGatekeeperServer : public H323GatekeeperServer
159 PCLASSINFO(MyGatekeeperServer, H323GatekeeperServer);
161 MyGatekeeperServer(MyH323EndPoint & ep);
164 virtual H323GatekeeperCall * CreateCall(
165 const OpalGloballyUniqueID & callIdentifier,
166 H323GatekeeperCall::Direction direction
168 virtual BOOL TranslateAliasAddressToSignalAddress(
169 const H225_AliasAddress & alias,
170 H323TransportAddress & address
177 class RouteMap : public PObject {
178 PCLASSINFO(RouteMap, PObject);
181 const PString & alias,
186 ) : alias(map.alias), regex(map.alias), host(map.host) { }
192 BOOL IsValid() const;
195 const PString & alias
198 const H323TransportAddress & GetHost() const { return host; }
202 PRegularExpression regex;
203 H323TransportAddress host;
205 PList<RouteMap> routes;
207 PMutex reconfigurationMutex;
213 * The MyProcess is a necessary descendant PProcess class so that the H323EndPoint
214 * objected to be created from within that class. (Who owns main() problem).
216 class MyProcess : public PProcess {
218 PCLASSINFO(MyProcess, PProcess);
231 * This class handles the termination of a call.
232 * Note that OpenH323 Library requires that the termination
233 * of a call should be done inside a separate thread of execution.
235 class ClearCallThread : public PThread {
237 PCLASSINFO(ClearCallThread, PThread);
240 ClearCallThread(const char *tc);