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)
64 /*! ILBC Free Codec */
65 #define AST_FORMAT_ILBC (1 << 10)
67 /**This class describes the G.723.1 codec capability.
69 class H323_G7231Capability : public H323AudioCapability
71 PCLASSINFO(H323_G7231Capability, H323AudioCapability);
74 BOOL annexA = TRUE /// Enable Annex A silence insertion descriptors
76 Comparison Compare(const PObject & obj) const;
78 PObject * Clone() const;
80 virtual H323Codec * CreateCodec(
81 H323Codec::Direction direction /// Direction in which this instance runs
84 unsigned GetSubType() const;
85 PString GetFormatName() const;
87 H245_AudioCapability & pdu, /// PDU to set information on
88 unsigned packetSize /// Packet size to use in capability
92 const H245_AudioCapability & pdu, /// PDU to get information from
93 unsigned & packetSize /// Packet size to use in capability
100 class MyH323EndPoint : public H323EndPoint {
102 PCLASSINFO(MyH323EndPoint, H323EndPoint);
106 int MakeCall(const PString &, PString &, unsigned int *, unsigned int);
107 BOOL ClearCall(const PString &);
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 OnSendReleaseComplete(H323SignalPDU &);
136 BOOL OnReceivedSignalSetup(const H323SignalPDU &);
137 void OnReceivedReleaseComplete(const H323SignalPDU &);
138 BOOL OnReceivedFacility(const H323SignalPDU &);
139 BOOL OnSendSignalSetup(H323SignalPDU &);
140 BOOL OnStartLogicalChannel(H323Channel &);
141 BOOL OnClosingLogicalChannel(H323Channel &);
142 void SendUserInputTone(char, unsigned);
143 void OnUserInputTone(char, unsigned, unsigned, unsigned);
144 void OnUserInputString(const PString &value);
146 PString sourceAliases;
151 PIPSocket::Address externalIpAddress; // IP address of media server
152 PIPSocket::Address remoteIpAddress; // IP Address of remote endpoint
153 WORD externalPort; // local media server Data port (control is dataPort+1)
154 WORD remotePort; // remote endpoint Data port (control is dataPort+1)
159 class MyGatekeeperServer : public H323GatekeeperServer
161 PCLASSINFO(MyGatekeeperServer, H323GatekeeperServer);
163 MyGatekeeperServer(MyH323EndPoint & ep);
166 virtual H323GatekeeperCall * CreateCall(
167 const OpalGloballyUniqueID & callIdentifier,
168 H323GatekeeperCall::Direction direction
170 virtual BOOL TranslateAliasAddressToSignalAddress(
171 const H225_AliasAddress & alias,
172 H323TransportAddress & address
179 class RouteMap : public PObject {
180 PCLASSINFO(RouteMap, PObject);
183 const PString & alias,
188 ) : alias(map.alias), regex(map.alias), host(map.host) { }
194 BOOL IsValid() const;
197 const PString & alias
200 const H323TransportAddress & GetHost() const { return host; }
204 PRegularExpression regex;
205 H323TransportAddress host;
207 PList<RouteMap> routes;
209 PMutex reconfigurationMutex;
215 * The MyProcess is a necessary descendant PProcess class so that the H323EndPoint
216 * objected to be created from within that class. (Who owns main() problem).
218 class MyProcess : public PProcess {
220 PCLASSINFO(MyProcess, PProcess);
233 * This class handles the termination of a call.
234 * Note that OpenH323 Library requires that the termination
235 * of a call should be done inside a separate thread of execution.
237 class ClearCallThread : public PThread {
239 PCLASSINFO(ClearCallThread, PThread);
242 ClearCallThread(const char *tc);