Better dependancy and version checking method, solve call problems when dealing with a gatekeeper, sanity check call cleanup, in hopes to avoid deadlocks (Bugs #3848 #3643, #3591)

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@5379 f38db490-d61c-443f-a65b-d21fe96a405b

4 files changed, 122 insertions, 16 deletions

diff --git a/channels/h323/Makefile b/channels/h323/Makefile
index f5203907c..f35cfb226 100755
--- a/channels/h323/Makefile
+++ b/channels/h323/Makefile
@@ -16,14 +16,17 @@ ifndef ASTETCDIR
 ASTETCDIR=/etc/asterisk
 endif
 
-PWLIB_MAJOR_VERSION=$(shell cat ${PWLIBDIR}/version.h | grep MAJOR_VERSION | cut -f3 -d' ')
-PWLIB_MINOR_VERSION=$(shell cat ${PWLIBDIR}/version.h | grep MINOR_VERSION | cut -f3 -d' ')
-PWLIB_BUILD_NUMBER=$(shell cat ${PWLIBDIR}/version.h | grep BUILD_NUMBER | cut -f3 -d' ')
+PWLIBVERSIONFILE=$(PWLIBDIR)/version.h
+OPENH323VERSIONFILE=$(OPENH323DIR)/version.h
+
+PWLIB_MAJOR_VERSION=$(shell test -e ${PWLIBVERSIONFILE} && cat ${PWLIBVERSIONFILE} | grep MAJOR_VERSION | cut -f3 -d' ')
+PWLIB_MINOR_VERSION=$(shell test -e ${PWLIBVERSIONFILE} && cat ${PWLIBVERSIONFILE} | grep MINOR_VERSION | cut -f3 -d' ')
+PWLIB_BUILD_NUMBER=$(shell test -e ${PWLIBVERSIONFILE} && cat ${PWLIBVERSIONFILE} | grep BUILD_NUMBER | cut -f3 -d' ')
 PWLIB_VERSION="${PWLIB_MAJOR_VERSION}.${PWLIB_MINOR_VERSION}.${PWLIB_BUILD_NUMBER}"
 
-OPENH323_MAJOR_VERSION=$(shell cat ${OPENH323DIR}/version.h | grep MAJOR_VERSION | cut -f3 -d' ')
-OPENH323_MINOR_VERSION=$(shell cat ${OPENH323DIR}/version.h | grep MINOR_VERSION | cut -f3 -d' ')
-OPENH323_BUILD_NUMBER=$(shell cat ${OPENH323DIR}/version.h | grep BUILD_NUMBER | cut -f3 -d' ')
+OPENH323_MAJOR_VERSION=$(shell test -e ${OPENH323VERSIONFILE} && cat ${OPENH323VERSIONFILE} | grep MAJOR_VERSION | cut -f3 -d' ')
+OPENH323_MINOR_VERSION=$(shell test -e ${OPENH323VERSIONFILE} && cat ${OPENH323VERSIONFILE} | grep MINOR_VERSION | cut -f3 -d' ')
+OPENH323_BUILD_NUMBER=$(shell test -e ${OPENH323VERSIONFILE} && cat ${OPENH323VERSIONFILE} | grep BUILD_NUMBER | cut -f3 -d' ')
 OPENH323_VERSION="${OPENH323_MAJOR_VERSION}.${OPENH323_MINOR_VERSION}.${OPENH323_BUILD_NUMBER}"
 
 #
@@ -66,8 +69,7 @@ samples:
  
 
 libchanh323.a:	ast_h323.o
-	ar cr libchanh323.a ast_h323.o
-	touch ../chan_h323.c
+	ar cr $@ $<
 
 ast_h323.o:	ast_h323.cpp
 	$(CXX) -g -c -o $@ $(CFLAGS) $<
@@ -94,7 +96,7 @@ depend: .depend
 
 checkversion:
 	@echo -n "PWLib version is ${PWLIB_VERSION}... "
-	@if [ ${PWLIB_VERSION} == "1.8.1" ]; then \
+	@if [ ${PWLIB_MAJOR_VERSION} -gt 1 -o ${PWLIB_MAJOR_VERSION} -eq 1 -a ${PWLIB_MINOR_VERSION} -gt 8 -o ${PWLIB_MAJOR_VERSION} -eq 1 -a ${PWLIB_MINOR_VERSION} -eq 8 -a ${PWLIB_BUILD_NUMBER} -ge 1 ]; then \
 		echo "ok" ; \
 	else \
 		echo "BAD" ; \
@@ -104,7 +106,7 @@ checkversion:
 		exit 1 ; \
 	fi
 	@echo -n "OpenH323 version is ${OPENH323_VERSION}... "
-	@if [ ${OPENH323_VERSION} == "1.15.1" ]; then \
+	@if [ ${OPENH323_MAJOR_VERSION} -gt 1 -o ${OPENH323_MAJOR_VERSION} -eq 1 -a ${OPENH323_MINOR_VERSION} -gt 15 -o ${OPENH323_MAJOR_VERSION} -eq 1 -a ${OPENH323_MINOR_VERSION} -eq 15 -a ${OPENH323_BUILD_NUMBER} -ge 1 ]; then \
 		echo "ok" ; \
 	else \
 		echo "BAD" ; \
diff --git a/channels/h323/ast_h323.cpp b/channels/h323/ast_h323.cpp
index 20118837a..a21fc5b54 100755
--- a/channels/h323/ast_h323.cpp
+++ b/channels/h323/ast_h323.cpp
@@ -70,6 +70,77 @@ MyH323EndPoint *endPoint = NULL;
 /** PWLib entry point */
 MyProcess *localProcess = NULL;
 
+class PAsteriskLog : public PObject, public iostream {
+	PCLASSINFO(PAsteriskLog, PObject);
+
+	public:
+	PAsteriskLog() : iostream(cout.rdbuf()) { init(&buffer); }
+	~PAsteriskLog() { flush(); }
+
+	private:
+	PAsteriskLog(const PAsteriskLog &) : iostream(cout.rdbuf()) { }
+	PAsteriskLog & operator=(const PAsteriskLog &) { return *this; }
+
+	class Buffer : public streambuf {
+		public:
+		virtual int overflow(int=EOF);
+		virtual int underflow();
+		virtual int sync();
+		PString string;
+	} buffer;
+	friend class Buffer;
+};
+
+static PAsteriskLog *logstream = NULL;
+
+int PAsteriskLog::Buffer::overflow(int c)
+{
+	if (pptr() >= epptr()) {
+		int ppos = pptr() - pbase();
+		char *newptr = string.GetPointer(string.GetSize() + 10);
+		setp(newptr, newptr + string.GetSize() - 1);
+		pbump(ppos);
+	}
+	if (c != EOF) {
+		*pptr() = (char)c;
+		pbump(1);
+	}
+	return 0;
+}
+
+int PAsteriskLog::Buffer::underflow()
+{
+	return EOF;
+}
+
+int PAsteriskLog::Buffer::sync()
+{
+	char *str = strdup(string);
+	char *s, *s1;
+	char c;
+
+	/* Pass each line with different ast_verbose() call */
+	for (s = str; s && *s; s = s1) {
+		s1 = strchr(s, '\n');
+		if (!s1)
+			s1 = s + strlen(s);
+		else
+			s1++;
+		c = *s1;
+		*s1 = '\0';
+		ast_verbose(s);
+		*s1 = c;
+	}
+	free(str);
+
+	string = PString();
+	char *base = string.GetPointer(10);
+	setp(base, base + string.GetSize() - 1);
+	return 0;
+}
+
+#define cout (*logstream)
+
 MyProcess::MyProcess(): PProcess("The NuFone Network's", "H.323 Channel Driver for Asterisk",
              MAJOR_VERSION, MINOR_VERSION, BUILD_TYPE, BUILD_NUMBER)
 {
@@ -81,6 +152,7 @@ void MyProcess::Main()
 	cout << "  == Creating H.323 Endpoint" << endl;
 	endPoint = new MyH323EndPoint();
 	PTrace::Initialise(0, NULL, PTrace::Timestamp | PTrace::Thread | PTrace::FileAndLine);
+	PTrace::SetStream(logstream);
 }
 
 H323_REGISTER_CAPABILITY(H323_G7231Capability, OPAL_G7231);
@@ -504,6 +576,7 @@ MyH323Connection::MyH323Connection(MyH323EndPoint & ep, unsigned callReference,
 							unsigned options)
 	: H323Connection(ep, callReference, options)
 {
+	cause = -1;
 	if (h323debug) {
 		cout << "	== New H.323 Connection created." << endl;
 	}
@@ -543,7 +616,7 @@ BOOL MyH323Connection::OnReceivedProgress(const H323SignalPDU &pdu)
 	}
 	on_progress(GetCallReference(), (const char *)GetCallToken(), isInband);
 
-	return TRUE;
+	return connectionState != ShuttingDownConnection;
 }
 
 H323Connection::AnswerCallResponse MyH323Connection::OnAnswerCall(const PString & caller,
@@ -556,6 +629,9 @@ H323Connection::AnswerCallResponse MyH323Connection::OnAnswerCall(const PString
                cout << "\t=-= In OnAnswerCall for call " << GetCallReference() << endl;
 	}
 
+	if (connectionState == ShuttingDownConnection)
+		return H323Connection::AnswerCallDenied;
+
 	if (!setupPDU.GetQ931().GetProgressIndicator(pi)) {
 		pi = 0;
 	}
@@ -612,7 +688,7 @@ BOOL MyH323Connection::OnAlerting(const H323SignalPDU & alertingPDU, const PStri
 		on_progress(GetCallReference(), (const char *)GetCallToken(), isInband);
 	}
         on_chan_ringing(GetCallReference(), (const char *)GetCallToken() );
-        return TRUE;
+        return connectionState != ShuttingDownConnection;
 }
 
 BOOL MyH323Connection::OnReceivedSignalSetup(const H323SignalPDU & setupPDU)
@@ -631,6 +707,9 @@ BOOL MyH323Connection::OnReceivedSignalSetup(const H323SignalPDU & setupPDU)
 		cout << ("\t--Received SETUP message\n");
 	}
 
+	if (connectionState == ShuttingDownConnection)
+		return FALSE;
+
 	sourceAliases = setupPDU.GetSourceAliases();
 	destAliases = setupPDU.GetDestinationAlias();
 			
@@ -696,6 +775,9 @@ BOOL MyH323Connection::OnSendSignalSetup(H323SignalPDU & setupPDU)
 		cout << "	-- Sending SETUP message" << endl;
 	}
 
+	if (connectionState == ShuttingDownConnection)
+		return FALSE;
+
 	if (!ast_cid_num.IsEmpty()) {
 		setupPDU.GetQ931().SetCallingPartyNumber(ast_cid_num);
 	}
@@ -755,6 +837,8 @@ BOOL MyH323Connection::OnSendReleaseComplete(H323SignalPDU & releaseCompletePDU)
 	if (h323debug) {
 		cout << "\t-- Sending RELEASE COMPLETE" << endl;
 	}
+	if (cause > 0)
+		releaseCompletePDU.GetQ931().SetCause((Q931::CauseValues)cause);
 	return H323Connection::OnSendReleaseComplete(releaseCompletePDU);
 }
 
@@ -771,6 +855,8 @@ void MyH323Connection::OnReceivedReleaseComplete(const H323SignalPDU & pdu)
 	if (h323debug) {
 		cout <<  "\t-- Received RELEASE COMPLETE message..." << endl;
 	}
+	if (on_hangup)
+		on_hangup(GetCallReference(), (const char *)GetCallToken(), pdu.GetQ931().GetCause());
 	return H323Connection::OnReceivedReleaseComplete(pdu);
 }
 
@@ -882,7 +968,7 @@ BOOL MyH323Connection::OnStartLogicalChannel(H323Channel & channel)
 	if (h323debug) {
 		cout <<  "\t\t-- channelsOpen = " << channelsOpen << endl;
 	}
-	return TRUE;	
+	return connectionState != ShuttingDownConnection;
 }
 
 /* MyH323_ExternalRTPChannel */
@@ -987,6 +1073,7 @@ int h323_end_point_exist(void)
 void h323_end_point_create(void)
 {
 	channelsOpen = 0;
+	logstream = new PAsteriskLog();
 	localProcess = new MyProcess();	
 	localProcess->Main();
 }
@@ -1005,7 +1092,9 @@ void h323_end_process(void)
 	endPoint->ClearAllCalls();
 	endPoint->RemoveListener(NULL);
 	delete endPoint;
+	PTrace::SetLevel(0);
 	delete localProcess;
+	delete logstream;
 }
 
 void h323_debug(int flag, unsigned level)
@@ -1028,7 +1117,8 @@ void h323_callback_register(setup_incoming_cb  	ifunc,
  			    send_digit_cb	dfunc,
  			    answer_call_cb	acfunc,
 			    progress_cb		pgfunc,
-			    rfc2833_cb		dtmffunc)
+			    rfc2833_cb		dtmffunc,
+			    hangup_cb		hangupfunc)
 {
 	on_incoming_call = ifunc;
 	on_outgoing_call = sfunc;
@@ -1041,6 +1131,7 @@ void h323_callback_register(setup_incoming_cb  	ifunc,
 	on_answer_call = acfunc;
 	on_progress = pgfunc;
 	on_set_rfc2833_payload = dtmffunc;
+	on_hangup = hangupfunc;
 }
 
 /**
@@ -1284,6 +1375,8 @@ int h323_clear_call(const char *call_token, int cause)
 {
 	H225_ReleaseCompleteReason dummy;
 	H323Connection::CallEndReason r = H323Connection::EndedByLocalUser;
+	MyH323Connection *connection;
+	const PString currentToken(call_token);
 
 	if (!h323_end_point_exist()) {
 		return 1;
@@ -1293,7 +1386,12 @@ int h323_clear_call(const char *call_token, int cause)
 		r = H323TranslateToCallEndReason((Q931::CauseValues)(cause), dummy);
 	}
 
-        endPoint->ClearCall(PString(call_token), r);
+	connection = (MyH323Connection *)endPoint->FindConnectionWithLock(currentToken);
+	if (connection) {
+		connection->SetCause(cause);
+		connection->Unlock();
+	}
+	endPoint->ClearCall(currentToken, r);
 	return 0;
 };
 
diff --git a/channels/h323/ast_h323.h b/channels/h323/ast_h323.h
index eb8de1874..3b652589e 100755
--- a/channels/h323/ast_h323.h
+++ b/channels/h323/ast_h323.h
@@ -175,6 +175,7 @@ class MyH323Connection : public H323Connection {
 	void OnSendCapabilitySet(H245_TerminalCapabilitySet &);
 	BOOL OnReceivedCapabilitySet(const H323Capabilities &, const H245_MultiplexCapability *,
 				     H245_TerminalCapabilitySetReject &);
+	void SetCause(int _cause) { cause = _cause; };
 
 	PString sourceAliases;
 	PString destAliases;
@@ -186,6 +187,7 @@ class MyH323Connection : public H323Connection {
 
 	unsigned progressSetup;
 	unsigned progressAlert;
+	int cause;
 
 	RTP_DataFrame::PayloadTypes dtmfCodec;
 
diff --git a/channels/h323/chan_h323.h b/channels/h323/chan_h323.h
index a59da67fc..3be251e80 100755
--- a/channels/h323/chan_h323.h
+++ b/channels/h323/chan_h323.h
@@ -165,6 +165,9 @@ extern answer_call_cb on_answer_call;
 typedef void (*rfc2833_cb)(unsigned, const char *, int);
 extern rfc2833_cb on_set_rfc2833_payload;
 
+typedef void (*hangup_cb)(unsigned, const char *, int);
+extern hangup_cb on_hangup;
+
 /* debug flag */
 extern int h323debug;
 
@@ -197,7 +200,8 @@ extern "C" {
  				    send_digit_cb,
  				    answer_call_cb,
 				    progress_cb,
-				    rfc2833_cb);
+				    rfc2833_cb,
+				    hangup_cb);
 	int h323_set_capability(int, int);
 	int h323_set_alias(struct oh323_alias *);
 	int h323_set_gk(int, char *, char *);