Allow H.323 Plus library to be used in addition to the OpenH323 library

Chan_h323 can now be compiled against both the previously supported versions of
OpenH323 as well as the current H.323 Plus (version 1.20.2). The configure
script has been modified to look in the default install location of h323 to
hopefully help avoid using the environment variables OPENH323DIR and PWLIBDIR.
Also, the CLI command "h323 show version" has been added which indicates which
version of h323 is in use.

(closes issue 0011261)
Reported by: vhatz
Patches:
      asterisk-1.6.0.6-h323plus.patch uploaded by jthurman (license 614)



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@182963 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_h323.c

@@ -2618,6 +2618,15 @@ static int h323_tokens_show(int fd, int argc, char *argv[])
 	return RESULT_SUCCESS;
 }
 
+static int h323_version_show(int fd, int argc, char *argv[])
+{
+	if (argc != 3) {
+		return RESULT_SHOWUSAGE;
+	}
+	h323_show_version();
+	return RESULT_SUCCESS;
+}
+
 static char trace_usage[] =
 "Usage: h.323 trace <level num>\n"
 "       Enables H.323 stack tracing for debugging purposes\n";
@@ -2646,6 +2655,10 @@ static char show_tokens_usage[] =
 "Usage: h.323 show tokens\n"
 "       Print out all active call tokens\n";
 
+static char show_version_usage[] =
+"Usage: h.323 show version\n"
+"		Print the version of the H.323 library in use\n";
+
 static char h323_reload_usage[] =
 "Usage: h323 reload\n"
 "       Reloads H.323 configuration from h323.conf\n";
@@ -2703,6 +2716,10 @@ static struct ast_cli_entry cli_h323[] = {
 	{ { "h323", "show", "tokens", NULL },
 	h323_tokens_show, "Show all active call tokens",
 	show_tokens_usage },
+
+	{ { "h323", "show", "version", NULL },
+	h323_version_show, "Show the version of the H.323 library in use",
+	show_version_usage },
 };
 
 static void delete_users(void)

channels/h323/ast_h323.cxx

@@ -1,6 +1,3 @@
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
 /*
  * ast_h323.cpp
  *
@@ -29,6 +26,8 @@
  * Version Info: $Id$
  */
 #include "asterisk.h"
+#define VERSION(a,b,c) ((a)*10000+(b)*100+(c))
+
 
 #include <arpa/inet.h>
 
@@ -41,6 +40,24 @@
 #include <h323pdu.h>
 #include <h323neg.h>
 #include <mediafmt.h>
+
+
+/* H323 Plus */
+#if VERSION(OPENH323_MAJOR, OPENH323_MINOR, OPENH323_BUILD) > VERSION(1,19,4)
+
+#ifdef H323_H450
+#include "h450/h4501.h"
+#include "h450/h4504.h"
+#include "h450/h45011.h"
+#include "h450/h450pdu.h"
+#endif
+
+#ifdef H323_H460
+#include <h460/h4601.h>
+#endif
+
+#else /* !H323 Plus */
+
 #include <lid.h>
 #ifdef H323_H450
 #include "h4501.h"
@@ -49,6 +66,10 @@
 #include "h450pdu.h"
 #endif
 
+#endif /* H323 Plus */
+
+#include "compat_h323.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -64,15 +85,23 @@ extern "C" {
 #include "cisco-h225.h"
 #include "caps_h323.h"
 
-#if PWLIB_MAJOR * 10000 + PWLIB_MINOR * 100 + PWLIB_BUILD >= 1 * 10000 + 12 * 100 + 0
+/* PWLIB_MAJOR renamed to PTLIB_MAJOR in 2.x.x */
+#if (defined(PTLIB_MAJOR) || VERSION(PWLIB_MAJOR, PWLIB_MINOR, PWLIB_BUILD) >= VERSION(1,12,0))
 #define SKIP_PWLIB_PIPE_BUG_WORKAROUND 1
 #endif
 
 /* PWlib Required Components  */
+#if VERSION(OPENH323_MAJOR, OPENH323_MINOR, OPENH323_BUILD) > VERSION(1,19,4)
+#define MAJOR_VERSION 1
+#define MINOR_VERSION 19
+#define BUILD_TYPE    ReleaseCode
+#define BUILD_NUMBER  6
+#else
 #define MAJOR_VERSION 1
 #define MINOR_VERSION 0
 #define BUILD_TYPE    ReleaseCode
 #define BUILD_NUMBER  0
+#endif
 
 /** Counter for the number of connections */
 static int channelsOpen;
@@ -1979,7 +2008,7 @@ PBoolean MyH323Connection::StartControlChannel(const H225_TransportAddress & h24
 			cout << "Using " << addr << " for outbound H.245 transport" << endl;
 		controlChannel = new MyH323TransportTCP(endpoint, addr);
 	} else
-		controlChannel = new H323TransportTCP(endpoint);
+		controlChannel = new MyH323TransportTCP(endpoint);
 	if (!controlChannel->SetRemoteAddress(h245Address)) {
 		PTRACE(1, "H225\tCould not extract H245 address");
 		delete controlChannel;
@@ -2207,6 +2236,35 @@ int h323_start_listener(int listenPort, struct sockaddr_in bindaddr)
 	return 0;
 };
 
+/* Addition of functions just to make the channel driver compile with H323Plus */
+#if VERSION(OPENH323_MAJOR, OPENH323_MINOR, OPENH323_BUILD) > VERSION(1,19,4)
+/* Alternate RTP port information for Same NAT */
+BOOL MyH323_ExternalRTPChannel::OnReceivedAltPDU(const H245_ArrayOf_GenericInformation & alternate )
+{
+	return TRUE;
+}
+
+/* Alternate RTP port information for Same NAT */
+BOOL MyH323_ExternalRTPChannel::OnSendingAltPDU(H245_ArrayOf_GenericInformation & alternate) const
+{
+	return TRUE;
+}
+
+/* Alternate RTP port information for Same NAT */
+void MyH323_ExternalRTPChannel::OnSendOpenAckAlt(H245_ArrayOf_GenericInformation & alternate) const
+{
+}
+
+/* Alternate RTP port information for Same NAT */
+BOOL MyH323_ExternalRTPChannel::OnReceivedAckAltPDU(const H245_ArrayOf_GenericInformation & alternate)
+{
+	return TRUE;
+}
+#endif
+
+
+
+
 int h323_set_alias(struct oh323_alias *alias)
 {
 	char *p;
@@ -2257,6 +2315,11 @@ void h323_show_tokens(void)
 	cout << "Current call tokens: " << setprecision(2) << endPoint->GetAllConnections() << endl;
 }
 
+void h323_show_version(void)
+{
+    cout << "H.323 version: " << OPENH323_MAJOR << "." << OPENH323_MINOR << "." << OPENH323_BUILD << endl;
+}
+
 /** Establish Gatekeeper communiations, if so configured,
   *	register aliases for the H.323 endpoint to respond to.
   */

channels/h323/ast_h323.h

@@ -145,6 +145,13 @@ protected:
 
 	PIPSocket::Address localIpAddr;
 	PIPSocket::Address remoteIpAddr;
+	/* Additional functions in order to have chan_h323 compile with H323Plus */
+#if VERSION(OPENH323_MAJOR, OPENH323_MINOR, OPENH323_BUILD) > VERSION(1,19,4)
+	BOOL OnReceivedAltPDU(const H245_ArrayOf_GenericInformation & alternate );
+	BOOL OnSendingAltPDU(H245_ArrayOf_GenericInformation & alternate) const;
+	void OnSendOpenAckAlt(H245_ArrayOf_GenericInformation & alternate) const;
+	BOOL OnReceivedAckAltPDU(const H245_ArrayOf_GenericInformation & alternate);
+#endif
 	WORD localPort;
 	WORD remotePort;
 };

channels/h323/chan_h323.h

@@ -228,6 +228,7 @@ extern "C" {
 	int h323_set_gk(int, char *, char *);
 	void h323_set_id(char *);
 	void h323_show_tokens(void);
+	void h323_show_version(void);
 
 	/* H323 listener related funcions */
 	int h323_start_listener(int, struct sockaddr_in);

channels/h323/compat_h323.cxx

@@ -33,6 +33,7 @@
 #include <transports.h>
 
 #include "ast_h323.h"
+#include "compat_h323.h"
 
 #if VERSION(OPENH323_MAJOR,OPENH323_MINOR,OPENH323_BUILD) < VERSION(1,17,3)
 MyH323TransportTCP::MyH323TransportTCP(

channels/h323/compat_h323.h

@@ -1,6 +1,8 @@
 #ifndef COMPAT_H323_H
 #define COMPAT_H323_H
 
+#include "ast_ptlib.h"
+
 #if VERSION(OPENH323_MAJOR,OPENH323_MINOR,OPENH323_BUILD) < VERSION(1,17,3)
 /**
  *  Workaround for broken (less than 1.17.3) OpenH323 stack to be able to