Includes the changes from third party vendor Solarflare to make

ptpd use hardware assistance provided by some of their NICs.

   This patch also include changes developed in-house to support

Solaris in general and Solaris on sparc platform. Solarflare

related changes will not be fed back upstream. Solaris related

changes will be contributed back upstream.

diff -r 3f1e7d35d0ab -r 821e8eadeaff COPYRIGHT

--- a/COPYRIGHT	Tue May 14 17:07:59 2013 -0700

+++ b/COPYRIGHT	Sun Oct 27 22:49:29 2013 -0700

@@ -1,4 +1,6 @@

 /*-

+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

+ * Copyright (c) 2011-2012 Solarflare Communications Inc

  * Copyright (c) 2009-2012 George V. Neville-Neil, 

  *                         Steven Kreuzer, 

  *                         Martin Burnicki, 

diff -r 3f1e7d35d0ab -r 821e8eadeaff Makefile

--- a/Makefile	Tue May 14 17:07:59 2013 -0700

+++ b/Makefile	Sun Oct 27 22:49:29 2013 -0700

@@ -2,16 +2,12 @@

 VERSION = ptpd-2.2.0

-release:

-	(cd src; make clean)

-	mkdir $(VERSION)

-	(cd $(VERSION); \

-	ln -s ../src .; \

-	ln -s ../doc .; \

-	ln -s ../tools .; \

-	ln -s ../COPYRIGHT .; \

-	ln -s ../ChangeLog .; \

-	ln -s ../Makefile .; \

-	ln -s ../README .; \

-	ln -s ../RELEASE_NOTES .)

-	tar cvzf $(VERSION).tar.gz -L --exclude .o --exclude Doxygen --exclude .svn --exclude .dep --exclude core $(VERSION)

+build:

+	(cd src; gmake clean; gmake)

+

+install:

+	mkdir -p $(DESTDIR)/usr/lib/inet

+	ginstall -D -p -m 755 src/ptpd $(DESTDIR)/usr/lib/inet/ptpd

+	mkdir -p $(DESTDIR)/usr/share/man/man1m/

+	ginstall -D -p -m 444 src/ptpd2.8 $(DESTDIR)/usr/share/man/man1m/ptpd.1m

+	

diff -r 3f1e7d35d0ab -r 821e8eadeaff src/Makefile

--- a/src/Makefile	Tue May 14 17:07:59 2013 -0700

+++ b/src/Makefile	Sun Oct 27 22:49:29 2013 -0700

@@ -1,4 +1,4 @@

-# Makefile for ptpd2

+# Makefile for ptpd

 #

 # Compile time defines:

@@ -13,6 +13,7 @@

 #  -DPTPD_DBGV    adds all debug messages

 #

 #   -DPTPD_NO_DAEMON             forces option -c

+#  -DBSD_INTERFACE_FUNCTIONS: for OpenBSD

 #

 #   -PTP_EXPERIMENTAL            Allows non-standard compliant experimental options:

 #                                   -U: Hybrid mode

@@ -27,29 +28,35 @@

 RM = rm -f

 # start with CFLAGS += ..., so additional CFLAGs can be specified e.g. on the make command line

-CFLAGS += -Wall -g

-

+CFLAGS = -Wall -g -D_ISOC99_SOURCE -D_BSD_SOURCE -std=gnu99 -m64

+CPPFLAGS += -D_XOPEN_SOURCE=600 -D__EXTENSIONS__ -D_XPG4_2

 CFLAGS += -DRUNTIME_DEBUG

 #CFLAGS += -DPTPD_DBG

 #CFLAGS += -DPTPD_DBG2

 #CFLAGS += -DPTPD_DBGV

+#CFLAGS += -DPTPD_DUMP

 #CFLAGS += -DPTPD_NO_DAEMON

+#CFLAGS += -DBSD_INTERFACE_FUNCTIONS

 #CFLAGS += -DDBG_SIGUSR2_CHANGE_DOMAIN

-CFLAGS += -DDBG_SIGUSR2_CHANGE_DEBUG

+#CFLAGS += -DDBG_SIGRTMIN_LEAP_SECOND

+#CFLAGS += -DDBG_SIGUSR2_CHANGE_DEBUG

+#CFLAGS += -DPTPD_FULL_OPTIONS

-CFLAGS += -DPTP_EXPERIMENTAL

+#CFLAGS += -DPTP_EXPERIMENTAL

 LDFLAGS+= -lm -lrt

+LDFLAGS += -lnsl -lsocket -m64

-PROG = ptpd2

+PROG = ptpd

 SRCS = ptpd.c arith.c bmc.c protocol.c display.c\

-	dep/msg.c dep/net.c dep/servo.c dep/startup.c dep/sys.c dep/timer.c

+	dep/msg.c dep/net.c dep/servo.c dep/startup.c dep/sys.c dep/timer.c dep/time.c

 OBJS = $(SRCS:.c=.o)

 HDRS = ptpd.h constants.h datatypes.h \

-	dep/ptpd_dep.h dep/constants_dep.h dep/datatypes_dep.h

+	dep/ptpd_dep.h dep/constants_dep.h dep/datatypes_dep.h \

+        dep/sfxge_ioctl.h

 CSCOPE = cscope

 GTAGS = gtags

diff -r 3f1e7d35d0ab -r 821e8eadeaff src/arith.c

--- a/src/arith.c	Tue May 14 17:07:59 2013 -0700

+++ b/src/arith.c	Sun Oct 27 22:49:29 2013 -0700

@@ -1,5 +1,7 @@

 /*-

- * Copyright (c) 2009-2011 George V. Neville-Neil, Steven Kreuzer, 

+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

+ * Copyright (c) 2011-2012 Solarflare Communications Inc

+ * Copyright (c) 2009-2011 George V. Neville-Neil, Steven Kreuzer,

  *                         Martin Burnicki, Gael Mace, Alexandre Van Kempen

  * Copyright (c) 2005-2008 Kendall Correll, Aidan Williams

  *

@@ -36,9 +38,12 @@

  * 

  */

+#include <math.h>

 #include "ptpd.h"

+double round (double __x);

+

 void 

 integer64_to_internalTime(Integer64 bigint, TimeInternal * internal)

 {

@@ -245,7 +250,7 @@

 }

-

+#if 0

 int check_timestamp_is_fresh2(TimeInternal * timeA, TimeInternal * timeB)

 {

 	int ret;

@@ -264,7 +269,7 @@

 	return check_timestamp_is_fresh2(timeA, &timeB);

 }

-

+#endif

 int

 isTimeInternalNegative(const TimeInternal * p)

 {

@@ -272,4 +277,52 @@

 }

+int64_t

+internalTime_to_scalar(TimeInternal *internal)

+{

+	return ((int64_t)internal->seconds * 1000000000LL)

+		+ (int64_t)internal->nanoseconds;

+}

+float

+secondsToMidnight(void) 

+{

+	TimeInternal now;

+ 

+	timerNow(&now);

+ 

+	// TODO should be 86400 - (now.seconds % 86400)

+	Integer32 stmI = (now.seconds - (now.seconds % 86400) + 86400) - 

+		now.seconds;

+ 

+	return (stmI + 0.0 - now.nanoseconds / 1E9);

+}

+ 

+

+float

+getPauseBeforeMidnight(Integer8 announceInterval) 

+{

+	return ((secondsToMidnight() <= getPauseAfterMidnight(announceInterval)) ?

+		secondsToMidnight() : getPauseAfterMidnight(announceInterval));

+}

+

+

+float

+getPauseAfterMidnight(Integer8 announceInterval) 

+{

+	return((LEAP_SECOND_PAUSE_PERIOD > 2 * pow(2,announceInterval)) ?

+	       LEAP_SECOND_PAUSE_PERIOD + 0.0  : 2 * pow(2,announceInterval) + 

+	       0.0);

+}

+

+

+int

+log2IntegerSaturateAtZero(LongDouble number)

+{

+    if (number <= 0) return 0;

+

+    number = log(number)/log(2);

+

+    return round(number);

+}

+

diff -r 3f1e7d35d0ab -r 821e8eadeaff src/bmc.c

--- a/src/bmc.c	Tue May 14 17:07:59 2013 -0700

+++ b/src/bmc.c	Sun Oct 27 22:49:29 2013 -0700

@@ -1,4 +1,5 @@

 /*-

+ * Copyright (c) 2011-2012 Solarflare Communications Inc

  * Copyright (c) 2009-2011 George V. Neville-Neil, Steven Kreuzer, 

  *                         Martin Burnicki, Gael Mace, Alexandre Van Kempen

  * Copyright (c) 2005-2008 Kendall Correll, Aidan Williams

@@ -77,7 +78,7 @@

 	ptpClock->domainNumber = rtOpts->domainNumber;

 	ptpClock->slaveOnly = rtOpts->slaveOnly;

-	if(rtOpts->slaveOnly)

+	if(rtOpts->master_slave_mode == PTP_MODE_SLAVE)

 		rtOpts->clockQuality.clockClass = 255;

 /* Port configuration data set */

@@ -91,16 +92,17 @@

 	ptpClock->portIdentity.portNumber = NUMBER_PORTS;

 	/* select the initial rate of delayreqs until we receive the first announce message */

-	ptpClock->logMinDelayReqInterval = rtOpts->initial_delayreq;

+	ptpClock->minDelayReqInterval = rtOpts->initial_delayreq;

+	ptpClock->logMinDelayReqInterval = log2IntegerSaturateAtZero(rtOpts->initial_delayreq);

 	clearTime(&ptpClock->peerMeanPathDelay);

-	ptpClock->logAnnounceInterval = rtOpts->announceInterval;

+	ptpClock->logAnnounceInterval = log2IntegerSaturateAtZero(rtOpts->announceInterval);

 	ptpClock->announceReceiptTimeout = rtOpts->announceReceiptTimeout;

-	ptpClock->logSyncInterval = rtOpts->syncInterval;

+	ptpClock->logSyncInterval = log2IntegerSaturateAtZero(rtOpts->syncInterval);

 	ptpClock->delayMechanism = rtOpts->delayMechanism;

-	ptpClock->logMinPdelayReqInterval = DEFAULT_PDELAYREQ_INTERVAL;

-	ptpClock->versionNumber = VERSION_PTP;

+	ptpClock->logMinPdelayReqInterval = DEFAULT_LOG_PDELAYREQ_INTERVAL;

+	ptpClock->versionNumber = VERSION_PTP_PROTOCOL;

  	/*

 	 *  Initialize random number generator using same method as ptpv1:

@@ -145,9 +147,10 @@

 	ptpClock->timeSource = INTERNAL_OSCILLATOR;

 	/* UTC vs TAI timescales */

-	ptpClock->currentUtcOffsetValid = DEFAULT_UTC_VALID;

+	ptpClock->currentUtcOffsetValid = rtOpts->currentUtcOffsetValid;

 	ptpClock->currentUtcOffset = rtOpts->currentUtcOffset;

+	/* TODO Should we clear the leap second flags? Unprogram leap second in kernel? */

 }

@@ -156,8 +159,10 @@

 {

 	/* make sure we revert to ARB timescale in Passive mode*/

 	if(ptpClock->portState == PTP_PASSIVE){

-		ptpClock->currentUtcOffsetValid = DEFAULT_UTC_VALID;

+		ptpClock->currentUtcOffsetValid = rtOpts->currentUtcOffsetValid;

 		ptpClock->currentUtcOffset = rtOpts->currentUtcOffset;

+

+		/* TODO Should we clear the leap second flags? Unprogram leap second in kernel? */

 	}

 }

@@ -166,6 +171,16 @@

 /*Local clock is synchronized to Ebest Table 16 (9.3.5) of the spec*/

 void s1(MsgHeader *header,MsgAnnounce *announce,PtpClock *ptpClock, RunTimeOpts *rtOpts)

 {

+

+	Boolean previousLeap59 = FALSE, previousLeap61 = FALSE;

+	Integer16 previousUtcOffset = 0;

+

+	if (ptpClock->portState == PTP_SLAVE) {

+		previousLeap59 = ptpClock->leap59;

+		previousLeap61 = ptpClock->leap61;

+		previousUtcOffset = ptpClock->currentUtcOffset;

+	}

+

 	/* Current DS */

 	ptpClock->stepsRemoved = announce->stepsRemoved + 1;

@@ -193,12 +208,95 @@

 	/* set PTP_PASSIVE-specific state */

 	p1(ptpClock, rtOpts);

-	ptpClock->leap59 = ((header->flagField[1] & PTP_LI_61) == PTP_LI_59);

-	ptpClock->leap61 = ((header->flagField[1] & PTP_LI_61) == PTP_LI_61);

 	ptpClock->timeTraceable = ((header->flagField[1] & TIME_TRACEABLE) == TIME_TRACEABLE);

 	ptpClock->frequencyTraceable = ((header->flagField[1] & FREQUENCY_TRACEABLE) == FREQUENCY_TRACEABLE);

 	ptpClock->ptpTimescale = ((header->flagField[1] & PTP_TIMESCALE) == PTP_TIMESCALE);

 	ptpClock->timeSource = announce->timeSource;

+

+	

+	/* Leap second handling */

+

+        if (ptpClock->portState == PTP_SLAVE) {

+		/* We must not take leap second updates while a leap second

+		 * is in progress. This shouldn't happen but we should not

+		 * rely on the master behaving. We'll take the update when

+		 * the first announce arrives after the leap second has

+		 * completed.

+		 */

+		if (!ptpClock->leapSecondInProgress) {

+			ptpClock->leap59 = ((header->flagField[1] & PTP_LI_59) == PTP_LI_59);

+			ptpClock->leap61 = ((header->flagField[1] & PTP_LI_61) == PTP_LI_61);

+			

+			if(ptpClock->leap59 && ptpClock->leap61) {

+				ERROR("Both Leap59 and Leap61 flags set!\n");

+				toState(PTP_FAULTY, rtOpts, ptpClock);

+				return;

+			}

+

+			if ((previousLeap59 != ptpClock->leap59) || 

+		            (previousLeap61 != ptpClock->leap61)) {

+				/* Either a leap second has been set. Start

+				 * by cancelling any leap seconds already

+				 * programmed. */

+				ptpClock->leapSecondPending = FALSE;

+				timerStop(LEAP_SECOND_PENDING_TIMER, ptpClock->itimer);

+				timerStop(LEAP_SECOND_NOW_TIMER, ptpClock->itimer);

+#if !defined(__APPLE__)

+				unsetTimexFlags(STA_INS | STA_DEL,TRUE);

+#endif /* apple */

+				/* If one of the leap seconds is set, program

+				 * the kernel to make the change. Set a timer

+				 * to expire just before the leap second will

+				 * occur. */

+				if (ptpClock->leap59 || ptpClock->leap61) {

+#if !defined(__APPLE__)

+					if (rtOpts->noResetClock ||

+					    rtOpts->resetClockStartupOnly) {

+						WARNING("=== Leap second pending! "

+							"One second will be %s "

+							"at midnight\n",

+							ptpClock->leap61 ?

+							"added" : "deleted");

+					} else {

+						WARNING("=== Leap second pending! "

+							"Setting kernel to %s "

+							"one second at midnight\n",

+							ptpClock->leap61 ?

+							"add" : "delete");

+					

+						setTimexFlags(ptpClock->leap61 ?

+							      STA_INS : STA_DEL,

+							      FALSE);

+					}

+#else

+					WARNING("=== Leap second pending! "

+						"No kernel leap second "

+						"API support - expect a "

+						"clock jump at midnight!\n");

+#endif /* apple */

+					ptpClock->leapSecondPending = TRUE;

+					timerStart(LEAP_SECOND_PENDING_TIMER,

+						   secondsToMidnight() - 

+						   getPauseBeforeMidnight(ptpClock->logAnnounceInterval),

+						   ptpClock->itimer);

+				} else {

+					WARNING("=== Leap second event "

+						"aborted by GM!\n");

+				}

+			}

+		}

+

+		if((previousUtcOffset != ptpClock->currentUtcOffset) && 

+		   !ptpClock->leapSecondPending && 

+		   !ptpClock->leapSecondInProgress ) {

+			WARNING("=== UTC offset changed from %d to %d with "

+				"no leap second pending!\n",

+				previousUtcOffset, ptpClock->currentUtcOffset);

+		} else if( previousUtcOffset != ptpClock->currentUtcOffset) {

+			WARNING("=== UTC offset changed from %d to %d\n",

+				previousUtcOffset,ptpClock->currentUtcOffset);

+		}

+	}

 }

@@ -342,9 +440,7 @@

 		 RunTimeOpts *rtOpts, PtpClock *ptpClock)

 {

 	Integer8 comp;

-	

-	

-	if (rtOpts->slaveOnly)	{

+	if (rtOpts->master_slave_mode == PTP_MODE_SLAVE) {

 		s1(header,announce,ptpClock, rtOpts);

 		return PTP_SLAVE;

 	}

diff -r 3f1e7d35d0ab -r 821e8eadeaff src/constants.h

--- a/src/constants.h	Tue May 14 17:07:59 2013 -0700

+++ b/src/constants.h	Sun Oct 27 22:49:29 2013 -0700

@@ -1,3 +1,33 @@

+/*-

+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

+ * Copyright (c) 2011-2012 Solarflare Communications Inc

+ * Copyright (c) 2009-2011 George V. Neville-Neil, Steven Kreuzer, 

+ *                         Martin Burnicki, Gael Mace, Alexandre Van Kempen

+ * Copyright (c) 2005-2008 Kendall Correll, Aidan Williams

+ *

+ * All Rights Reserved

+ * 

+ * Redistribution and use in source and binary forms, with or without

+ * modification, are permitted provided that the following conditions are

+ * met:

+ * 1. Redistributions of source code must retain the above copyright notice,

+ *    this list of conditions and the following disclaimer.

+ * 2. Redistributions in binary form must reproduce the above copyright

+ *    notice, this list of conditions and the following disclaimer in the

+ *    documentation and/or other materials provided with the distribution.

+ * 

+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR

+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE

+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR

+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,

+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE

+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN

+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ */

 #ifndef CONSTANTS_H_

 #define CONSTANTS_H_

@@ -9,7 +39,8 @@

 * and enumeration defined in the spec

  */

- #define MANUFACTURER_ID \

+#define PTP_VERSION_STRING "ptpdv2_2_0_0"

+#define MANUFACTURER_ID \

   "MaceG VanKempen;2.0.0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"

@@ -17,21 +48,26 @@

 #define DEFAULT_INBOUND_LATENCY      	0       /* in nsec */

 #define DEFAULT_OUTBOUND_LATENCY     	0       /* in nsec */

 #define DEFAULT_NO_RESET_CLOCK       	FALSE

+#define DEFAULT_RESET_CLOCK_STARTUP_ONLY FALSE

+#define DEFAULT_NO_ADJUST_CLOCK      FALSE

 #define DEFAULT_DOMAIN_NUMBER        	0

-#define DEFAULT_DELAY_MECHANISM      	E2E     // TODO

+#define DEFAULT_DELAY_MECHANISM      	E2E

 #define DEFAULT_AP                   	10

 #define DEFAULT_AI                   	1000

 #define DEFAULT_DELAY_S              	6

-#define DEFAULT_ANNOUNCE_INTERVAL    	1      /* 0 in 802.1AS */

+#define DEFAULT_ANNOUNCE_INTERVAL    	2.0    /* 0 in 802.1AS */

+#define LEAP_SECOND_PAUSE_PERIOD        2      /* how long before/after leap */

+                                               /* second event we pause offset */

+                                               /* calculation */

 /* Master mode operates in ARB (UTC) timescale, without TAI+leap seconds */

 #define DEFAULT_UTC_OFFSET           	0

 #define DEFAULT_UTC_VALID            	FALSE

-#define DEFAULT_PDELAYREQ_INTERVAL   	1      /* -4 in 802.1AS */

+#define DEFAULT_LOG_PDELAYREQ_INTERVAL  1      /* -4 in 802.1AS */

-#define DEFAULT_DELAYREQ_INTERVAL    	0      /* new value from page 237 of the standard */

+#define DEFAULT_DELAYREQ_INTERVAL    	1.0    /* new value from page 237 of the standard */

-#define DEFAULT_SYNC_INTERVAL        	0      /* -7 in 802.1AS */  /* from page 237 of the standard */

+#define DEFAULT_SYNC_INTERVAL        	1.0    /* -7 in 802.1AS */  /* from page 237 of the standard */

 /* number of announces we need to lose until a time out occurs. Thus it is 12 seconds */

 #define DEFAULT_ANNOUNCE_RECEIPT_TIMEOUT 6     /* 3 by default */

@@ -49,7 +85,7 @@

 section 7.6.2.4, page 55:

 248     Default. This clockClass shall be used if none of the other clockClass definitions apply.

 13      Shall designate a clock that is synchronized to an application-specific source of time. The timescale distributed

-        shall be ARB. A clockClass 13 clock shall not be a slave to another clock in the domain. 

+        shall be ARB. A clockClass 13 clock shall not be a slave to another clock in the domain.

 */

 #define DEFAULT_CLOCK_CLASS		248

 #define DEFAULT_CLOCK_CLASS__APPLICATION_SPECIFIC_TIME_SOURCE	13

@@ -63,22 +99,34 @@

 */

 #define DEFAULT_CLOCK_ACCURACY		0xFE

-#define DEFAULT_PRIORITY1		128        

-#define DEFAULT_PRIORITY2		128        /* page 238, default priority is the midpoint, to allow easy control of the BMC algorithm */

+#define DEFAULT_PRIORITY1		248

+#define DEFAULT_PRIORITY2		248

-/* page 238:  τ, see 7.6.3.2: The default initialization value shall be 1.0 s.  */

-#define DEFAULT_CLOCK_VARIANCE 	        28768 /* To be determined in 802.1AS. */

-                                             

+#define DEFAULT_CLOCK_VARIANCE 	       -4000 /* To be determined in 802.1AS. */

+                                             /* We use the same value as in */

+                                             /* ptpdv1. */

+

 #define DEFAULT_MAX_FOREIGN_RECORDS  	5

 #define DEFAULT_PARENTS_STATS			FALSE

+/* Default time mode for master and slave modes */

+#define DEFAULT_MASTER_TIME_MODE        TIME_SYSTEM

+#define DEFAULT_SLAVE_TIME_MODE         TIME_SYSTEM

+

+/* For time both, default system time update interval */

+#define DEFAULT_SYSTEM_TIME_UPDATE_INTERVAL 1.0

+

+/* We don't allow the time to be set to before 1/1/1971 because this almost */

+/* certainly means something has gone very wrong */

+#define UTC_TIME_VALID_MINIMUM          (31536000)

+

 /* features, only change to refelect changes in implementation */

 #define NUMBER_PORTS      	1

-#define VERSION_PTP       	2

-#define TWO_STEP_FLAG    	TRUE

+#define VERSION_PTP_PROTOCOL	2

+#define TWO_STEP_FLAG    	0x02

 #define BOUNDARY_CLOCK    	FALSE

 #define SLAVE_ONLY		FALSE

 #define NO_ADJUST		FALSE

@@ -107,7 +155,7 @@

  * \brief Domain Number (Table 2 in the spec)*/

 enum {

-	DFLT_DOMAIN_NUMBER = 0, ALT1_DOMAIN_NUMBER, ALT2_DOMAIN_NUMBER, ALT3_DOMAIN_NUMBER