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TOPS-20_V6.1_DECnetSrc_7-23-85
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mcb/xpt/xptlib.req
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! COPYRIGHT (c) 1980, 1981, 1982
! DIGITAL EQUIPMENT CORPORATION
! Maynard, Massachusetts
!
! This software is furnished under a license and may be used
! and copied only in accordance with the terms of such license
! and with the inclusion of the above copyright notice. This
! software or any other copies thereof may not be provided or
! otherwise made available to any other person. No title to
! and ownership of the software is hereby transferred.
!
! The information in this software is subject to change
! without notice and should not be construed as a commitment
! by DIGITAL EQUIPMENT CORPORATION.
!
! DIGITAL assumes no responsibility for the use or reliability
! of its software on equipment which is not supplied by
! DIGITAL.
library 'MCB:XPORTX';
library 'MCB:MCBLIB';
library 'MCB:NMXLIB';
require 'MCB:DLLLIB';
macro
$bias = ! Mapping bias
$integer %,
$fill [] = ! Skip field, no label, display
%bliss16 [%bliss36 [%remaining]] %,
$list_head = ! Two word list head
$sub_block (2) %;
!+
! Linkages and routine synonyms
!-
linkage
XPT$LKG_LINEb = jsr (register = 5),
XPT$LKG_NODEb = jsr (register = 5),
XPT$LKG_NUM = jsr (register = 0);
macro
XPT$GET_LINE_DB = GTLINE %,
XPT$GET_NODE_DB = GTNODE %;
macro
$TLI_GET_LINE_DB (NUMBER) =
begin
external routine XPT$GET_LINE_DB : XPT$LKG_NUM;
XPT$GET_LINE_DB (NUMBER)
end %,
$TLI_GET_NODE_DB (NUMBER) =
begin
external routine XPT$GET_NODE_DB : XPT$LKG_NUM;
XPT$GET_NODE_DB (NUMBER)
end %,
$XPT_GET_LINE_DB (NUMBER) =
begin
external routine XPT$GET_LINE_DB : XPT$LKG_NUM;
XPT$GET_LINE_DB (NUMBER)
end %,
$XPT_GET_NODE_DB (NUMBER) =
begin
external routine XPT$GET_NODE_DB : XPT$LKG_NUM;
XPT$GET_NODE_DB (NUMBER)
end %;
macro
$XPT_for_each_LINEb_do_begin =
begin
local LINEb: ref LINEblock;
LINEb = .XPTDB[XPTlindb];
decru $XPT$LINEb_cnt from NLN to 1 do
begin %,
$XPT_next_LINEb_end =
LINEb = vector [.LINEb,LINEsize]
end
end %;
macro
$XPT_for_each_NODEb_do_begin =
begin
local NODEb: ref NODEblock;
NODEb = .XPTDB[XPTnoddb];
decru $XPT$NODEb_cnt from NN to 1 do
begin %,
$XPT_next_NODEb_end =
NODEb = vector [.NODEb,NODEsize];
end;
end; %;
macro
$TLI_for_each_PWDb_do_begin =
begin
local PWDb: ref PWDblock;
if (PWDb = .PWDdb) neqa 0
then do begin %,
$TLI_next_PWDb_end =
end
while (PWDb = .PWDlink) neqa 0;
end; %;
!+
!
! Macros and structures for the Transport process
!
!-
literal
TRUE = 1 eql 1,
FALSE = 1 eql 0;
macro SETBIT(VALUE,PIT) = (VALUE = .VALUE or (PIT))%;
macro CLEARBIT(VALUE,PIT) = (VALUE = .VALUE and not (PIT))%;
macro BITON(VALUE,PIT) = ((VALUE and (PIT)) neq 0)%;
macro BITOFF(VALUE,PIT) = ((VALUE and (PIT)) eql 0)%;
macro CHECKSUM(SUM,VAL) =
begin
builtin ROT;
if ROT((SUM=.SUM+VAL),1) then SUM = .SUM + 1;
end %;
macro POINTER = register%;
macro GETB(PTR) = ch$rchar_a(PTR)%;
macro PUTB(VALUE,PTR) = ch$wchar_a(VALUE,PTR)%;
macro EX_PUTW(VALUE,PTR) =
if VALUE geq 128 then begin
local X; X;
X = VALUE;
ch$wchar_a(.X<0,7>+128,PTR);
ch$wchar_a(.X<7,7>,PTR);
end
else ch$wchar_a(VALUE,PTR);
%;
macro MAPBUF (ccb,addr_addr,len_addr) =
MAP$(CCB[C_BIAS]);
addr_addr = CCB[C_ADDR]
%IF %LENGTH GTR 2 %THEN
; len_addr = CCB[C_CNT] %FI
%;
structure VECTOR1 [I; N,UNIT=%upval] = !One-based vector
[N * UNIT]
(VECTOR1 + (I-1)*UNIT)<0,%bpunit*UNIT,0>;
structure ENTRY1 [I; N,UNIT=1] = !One-based data base entry
[N * UNIT] ! of length N
(ENTRY1 + ((I-1) * N * UNIT));
macro $CCBRG = 4%; !Standard MCB CCB register
!
! XPT CCB definitions
!
$field
C_XPT_OVERLAY_FIELDS =
set
$overlay (C_LIN)
C_HANDLE = [$integer],
$continue
$overlay (C_PRM1)
C_XPT_SOURCE = [$integer],
$continue
$overlay (C_PRM2)
C_XPT_DESTINATION = [$integer],
$continue
$overlay (C_PRM4)
C_XPT_TYPE = [$tiny_integer],
C_XPT_ADJUST = [$tiny_integer],
$continue
$overlay (C_XPT_TYPE)
C_XPT_SUBTYPE = [$tiny_integer],
$continue
$overlay (C_PRM5)
C_XPT_ALLOCATION = [$integer]
$continue
tes;
macro C_XPT_FIELDS = C_FIELDS, C_XPT_OVERLAY_FIELDS %;
literal !Flags a buffer as belonging to a process:
UPDATEcode = 1, ! Routing or Hello message (also a subcode)
INITcode = 2, ! Transport Initialize
ECLcode = 3, ! ECL interface
FWDcode = 4, ! Forwarded buffer (at DLL)
HELLOcode = 5, ! Subcode for Hello message
NOcode = 6; ! Forwarded buffer which is not to be counted
! against any quotas
!
! XPT AND TLI CCB MODIFIER CODE DEFINITIONS
!
LITERAL
XM_STP = 2^1,
XM_STR = 1^1,
XM_DAT = 0^1;
LITERAL
TM_DAT = 0^1,
TM_INI = 6^1,
TM_STP = 4^1,
TM_STR = 5^1,
TM_TRM = 7^1;
LITERAL
NM_INI = 0^1,
NM_TRM = 4^1;
!+
!
! Field mapping for Transport Central Data Base
!
!-
$show(fields)
$show(literals)
$FIELD XPTDBflds =
set
XPTltim = [$BYTE],
XPTSrm = [$bit],
TLI2TVrequested = [$bit],
TLI3TVrequested = [$bit],
XPTxpe = [$BYTE],
XPTtli = [$BYTE],
XPTxpt = [$BYTE],
XPTnm = [$BYTE],
XPThopcostb = [$bias],
XPThopcosta = [$address],
XPTnoddb = [$ADDRESS],
XPT$nn = [$short_integer],
XPTnn = [$short_integer], ! 920 - MAXIMUM ADDRESS
XPTlindb = [$ADDRESS],
XPT$nln = [$short_integer], ! 921 - MAXIMUM CIRCUITS
XPTnod_nn = [$ADDRESS], !
XPTlnkxl = [$ADDRESS], ! Phase II link table
XPT$lnkxl = [$short_integer], ! Number of Phase II links
XPT$maxp = [$short_integer], ! Number of Phase II links per circuit
XPT$linq = [$BYTE],
XPTdllq = [$TINY_INTEGER],
XPT$maxc = [$short_integer],
XPTmaxc = [$short_integer], ! 922 - MAXIMUM COST
XPT$maxh = [$short_integer],
XPTmaxh = [$short_integer], ! 923 - MAXIMUM HOPS
XPT$maxv = [$short_integer],
XPTmaxv = [$short_integer], ! 924 - MAXIMUM VISITS
XPT$maxl = [$short_integer],
XPTmaxl = [$short_integer], ! Maximum link cost
XPTtid = [$short_integer], ! Transport address
XPT$t1 = [$INTEGER], ! 910 - ROUTING TIMER
XPT$t2 = [$INTEGER], ! Update timer
XPT$t3 = [$INTEGER], ! Default hello timer
XPT$t4 = [$INTEGER], ! Default listen timer
XPT$init = [$INTEGER], ! Initialization timer
XPTt1 = [$INTEGER], ! Routing clock
XPTt2 = [$INTEGER], ! Update clock
XPTnextl = [$tiny_integer],
XPT$updq = [$BYTE],
XPTupdq = [$BYTE],
XPT$eclq = [$BYTE],
XPTeclq = [$BYTE],
XPT$inpq = [$BYTE],
XPTinq = [$TINY_INTEGER],
XPTinfill = [$BYTE],
XPTflg = [$short_integer],
XPTrequ = [$list_head],
XPTnodel = [$INTEGER],
XPTnode = [$byte_string(6)],
XPTdllsz = [$INTEGER], ! 931 - BUFFER SIZE
XPTph2sz = [$INTEGER],
XPTaged_loss = [$counter (8)], ! 900 - Aged Packet Loss
XPTrange_loss = [$counter (8)], ! 902 - Node Out-of-Range Packet Loss
XPTsize_loss = [$counter (8)], ! 903 - Oversize Packet Loss
XPTfmt_loss = [$counter (8)], ! 910 - Packet Format Error
XPTrout_loss = [$counter (8)], ! 920 - Partial Routing Update Loss
XPTver_rej = [$counter (8)], ! 930 - Verification Reject
XPTunreach_loss = [$counter (16)], ! 901 - Node Unreachable Packet Loss
XPTreq_cnt = [$byte],
XPT$hello = [$tiny_integer], ! Default hello data length
$ALIGN(FULLWORD)
XPTmaxn = [$INTEGER],
XPTincn = [$INTEGER],
XPTraddr = [$ADDRESS],
XPTsynblk = [$ADDRESS],
XPTpasswords = [$address],
XPT_TI_ADDR = [$address],
XPT_TI_CNT = [$short_integer],
XPT_NI_ADDR = [$address],
XPT_NI_CNT = [$short_integer],
XPT_HELLO_ADDR = [$address],
XPT_HELLO_CNT = [$short_integer],
XPT_FALSE_NI_LINEb = [$address],
XPT_FALSE_NI_ADDR = [$address],
XPT_FALSE_NI_CNT = [$short_integer]
tes;
literal XPTDB_length = $FIELD_SET_SIZE;
macro XPTDBblock = block [XPTDB_length] field (XPTDBflds)%;
!
! Synonyms for XPTDB
!
macro $ECLQ = .XPTDB[XPT$eclq]%;
macro $INPQ = .XPTDB[XPT$inpq]%;
macro $LINQ = .XPTDB[XPT$linq]%;
macro $MAXC = .XPTDB[XPT$maxc]%;
macro $MAXH = .XPTDB[XPT$maxh]%;
macro $MAXL = .XPTDB[XPT$maxl]%;
macro $MAXlk = .XPTDB[XPT$maxp]%;
macro $MAXV = .XPTDB[XPT$maxv]%;
macro $T1ini = .XPTDB[XPT$t1]%;
macro $T2ini = .XPTDB[XPT$t2]%;
macro $TIini = .XPTDB[XPT$init]%;
macro $UPDQ = .XPTDB[XPT$updq]%;
macro Aged_Loss = XPTDB[XPTaged_loss]%;
macro Default_Hello_data_length = .XPTDB[XPT$hello]%;
macro Default_Hello_timer = .XPTDB[XPT$t3]%;
macro Default_Init_timer = .XPTDB[XPT$init]%;
macro Default_Listen_timer = .XPTDB[XPT$t4]%;
macro Default_Routing_timer = .XPTDB[XPT$t1]%;
macro Default_Update_timer = .XPTDB[XPT$t2]%;
macro DLLquota = XPTDB[XPTdllq]%;
macro DLLsize = XPTDB[XPTdllsz]%;
macro ECLquota = XPTDB[XPTeclq]%;
macro False_NI_LINEb = XPTDB[XPT_FALSE_NI_LINEb]%;
macro False_NI_msg_ADDR = XPTDB[XPT_FALSE_NI_ADDR]%;
macro False_NI_msg_CNT = XPTDB[XPT_FALSE_NI_CNT]%;
macro Format_Errors = XPTDB[XPTfmt_loss]%;
macro Hello_msg_CNT = XPTDB[XPT_HELLO_CNT]%;
macro Hello_msg_ADDR = XPTDB[XPT_HELLO_ADDR]%;
macro Hopcost_address = .XPTDB[XPThopcosta]%;
macro Hopcost_bias = .XPTDB[XPThopcostb]%;
macro IncN = XPTDB[XPTincn]%;
macro Init_timer = XPTDB[XPT$init]%;
macro INPUTfill = XPTDB[XPTinfill]%;
macro INPUTquota = XPTDB[XPTinq]%;
macro Maxc = XPTDB[XPTmaxc]%;
macro Maxh = XPTDB[XPTmaxh]%;
macro Maximum_Address_limit = XPTDB[XPT$nn]%;
macro Maximum_Circuits_limit = XPTDB[XPT$nln]%;
macro Maxl = XPTDB[XPTmaxl]%;
macro MaxN = XPTDB[XPTmaxn]%;
macro Maxv = XPTDB[XPTmaxv]%;
macro NEXTline = XPTDB[XPTnextl]%;
macro NI_msg_CNT = XPTDB[XPT_NI_CNT]%;
macro NI_msg_ADDR = XPTDB[XPT_NI_ADDR]%;
macro NLN = .XPTDB[XPT$nln]%;
macro NN = .XPTDB[XPTnn]%;
macro NODEmaximum_address_vector = XPTDB[XPTnod_nn]%;
macro NODEname = XPTDB[XPTnode]%;
macro NODEname_length = XPTDB[XPTnodel]%;
macro Oversize_Loss = XPTDB[XPTsize_loss]%;
macro PWDDB = XPTDB[XPTpasswords]%;
macro PD_NMX = .XPTDB[XPTnm]%;
macro PD_TLI = .XPTDB[XPTtli]%;
macro PD_XPE = .XPTDB[XPTxpe]%;
macro PD_XPT = .XPTDB[XPTxpt]%;
macro Ph2link_table = XPTDB[XPTlnkxl]%;
macro Ph2link_allocated = XPTDB[XPT$lnkxl]%;
macro PH2size = XPTDB[XPTph2sz]%;
macro Range_Loss = XPTDB[XPTrange_loss]%;
macro Request_OTV = XPTDB[TLI2TVrequested]%;
macro Request_TV = XPTDB[TLI3TVrequested]%;
macro REqueue = XPTDB[XPTrequ]%;
macro REqueue_count = XPTDB[XPTreq_cnt]%;
macro ROUTESaddr = XPTDB[XPTraddr]%;
macro Routing_changed = XPTDB[XPTSrm]%;
macro Routing_clock = XPTDB[XPTt1]%;
macro Routing_Loss = XPTDB[XPTrout_loss]%;
macro Routing_timer = XPTDB[XPT$t1]%;
macro Synchblk = XPTDB[XPTsynblk]%;
macro T1 = XPTDB[XPTt1]%;
macro T2 = XPTDB[XPTt2]%;
macro TI_msg_CNT = XPTDB[XPT_TI_CNT]%;
macro TI_msg_ADDR = XPTDB[XPT_TI_ADDR]%;
macro Tid = XPTDB[XPTtid]%;
macro Timer = XPTDB[XPTltim]%;
macro Unreach_Loss = XPTDB[XPTunreach_loss]%;
macro Update_clock = XPTDB[XPTt2]%;
macro Update_timer = XPTDB[XPT$t2]%;
macro UPDATEquota = XPTDB[XPTupdq]%;
macro Verify_Rejects = XPTDB[XPTver_rej]%;
macro XPTflags = XPTDB[XPTflg]%;
!
! Field mapping for Transport node data base entry
!
$FIELD NODEfields =
set
XPTol = [$tiny_integer], ! OL or User
XPTlocal = [$bit],
XPTp2 = [$BIT],
$fill($bits(5))
XPTreach = [$BIT],
$align(UNIT)
XPTaddress = [$short_integer],
XPTminhop = [$INTEGER], ! 821 - HOPS
XPTmincost= [$INTEGER] ! 820 - COST
tes;
literal
NODEsize = $field_set_size,
NODElength = NODEsize * %UPVAL; ! Length of node data base entry
macro NODEblock = block [NODElength] field (NODEfields)%;
!
! Synonyms for NODEb
!
macro Local_node = NODEb[XPTlocal]%;
macro Maximum_address =
begin
local MXA : ref vector;
if (MXA = .NODEmaximum_address_vector) neqa 0
then begin
if (MXA = .MXA [.NODEaddress - 1]) neq 0
then begin
if .MXA leq .XPTDB[XPTnn]
then MXA
else XPTDB[XPTnn]
end
else XPTDB[XPTnn]
end
else XPTDB[XPTnn]
end%;
macro Minhop = NODEb[XPTminhop]%;
macro Mincost = NODEb[XPTmincost]%;
macro NODEaddress = NODEb[XPTaddress]%;
macro OL = NODEb[XPTol]%;
macro Phase2_node = NODEb[XPTp2]%;
macro Reach = NODEb[XPTreach]%;
macro User = NODEb[XPTol]%;
!
! Field mapping for Transport line data base entry
!
$FIELD LINEfields =
set
XPTlinsta = [$TINY_INTEGER],
TLIowned = [$bit],
TLIsend_TI = [$bit],
TLIsend_TV = [$bit],
TLIFreeing = [$bit],
XPTsend_hello = [$bit],
XPTsend_routes = [$bit],
XPTinit_line = [$bit],
XPTline_up = [$bit],
$align(fullword)
XPTnty = [$tiny_integer], ! Node type, as defined below.
TLIintercept = [$bit], ! If on, node init as ourselves.
! If off, false node init.
XPTphase2_circuit = [$bit],
TLIph2only = [$bit], ! If on, force phase II protocol
$fill($bit)
XPTDTE_circuit = [$bit], ! If on, this line goes
$align(fullword) ! to a TOPS20 node.
XPTnid = [$address], ! 800 - ADJACENT NODE address
$align(fullword)
XPTDLLstate = [$tiny_integer], ! Last received state from DLL.
XPTnnml = [$tiny_integer], ! Adjacent node name length
XPTnnm = [$byte_string (6)], ! Adjacent node name
$align (fullword)
XPTblock_size = [$short_integer], ! 810 - BLOCK SIZE
XPTcost = [$short_integer], ! 900 - COST
XPThello_timer = [$short_integer], ! 906 - HELLO TIMER
XPTlisten_timer = [$short_integer], ! 907 - LISTEN TIMER
XPTXPThandle = [$integer], ! Transport process handle:
$overlay(XPTXPThandle)
XPTlinno = [$byte], ! Number of this line
XPTXPTpix = [$byte], ! Transport's PIX
$continue
XPTTLIhandle = [$integer], ! TLI process handle
XPTDLLhandle = [$integer], ! DLL process handle
XPTnmxid = [$integer], ! NMXID (for event logging)
XPTlinq = [$tiny_integer],
XPTnstate = [$tiny_integer], ! 0 - STATE
TLIlinrcvr = [$tiny_integer],
TLIxstate = [$tiny_integer], ! Last requested XPT state
TLIrcvrsta = [$tiny_integer],
XPTinp_cnt = [$byte],
$align(fullword)
XPThello_clock = [$integer], ! Clock for hello timer
XPTlisten_clock = [$integer], ! Clock for listen timer
XPTlinccb = [$address], ! CCBs waiting for line up/down
TLItime_zeroed = [$time], ! 0 - Time last zeroed
XPTend_rcv = [$counter (32)], ! 800 - Terminating Packets Received
XPTend_xmt = [$counter (32)], ! 801 - Originating Packets Sent
XPTend_cng = [$counter (16)], ! 802 - Terminating Congestion Loss
XPTxit_rcv = [$counter (32)], ! 810 - Transit Packets Received
XPTxit_xmt = [$counter (32)], ! 811 - Transit Packets Sent
XPTxit_cng = [$counter (16)], ! 812 - Transit Congestion Loss
XPTlinedn = [$counter (8)], ! 820 - Circuit Down
XPTini_fail = [$counter (8)] ! 821 - Initialization Failure
tes;
literal
LINEsize = $field_set_size,
LINElength = LINEsize * %UPVAL; ! Length of line data base entry
macro LINEblock = block [LINElength] field (LINEfields)%;
!
! Synonyms for LINEb
!
macro Arriving_Packets = LINEb[XPTend_rcv]%;
macro Block_size = LINEb[XPTblock_size]%;
macro Departing_Packets = LINEb[XPTend_xmt]%;
macro DLLhandle = LINEb[XPTDLLhandle]%;
macro DLLstate = LINEb[XPTDLLstate]%;
macro DTEcircuit = LINEb[XPTDTE_circuit]%;
macro End_Congestion = LINEb[XPTend_cng]%;
macro Freeing = LINEb[TLIFreeing]%;
macro Hello_clock = LINEb[XPThello_clock]%;
macro Hello_timer = LINEb[XPThello_timer]%;
macro Init_Fails = LINEb[XPTini_fail]%;
macro INPUTcount = LINEb[XPTinp_cnt]%;
macro Intercept = LINEb[TLIintercept]%;
macro Lcv = LINEb[XPTcost]%;
macro Line_Downs = LINEb[XPTlinedn]%;
macro Line_up = LINEb[XPTline_up]%;
macro LINEccb = LINEb[XPTlinccb]%;
macro LINEfunction = LINEb[TLIlinrcvr]%;
macro LINEnumber = LINEb[XPTlinno]%;
macro LINEquota = LINEb[XPTlinq]%;
macro LINEstate = LINEb[XPTlinsta]%;
macro LINEstate_desired = LINEb[TLIrcvrsta]%;
macro Listen_clock = LINEb[XPTlisten_clock]%;
macro Listen_timer = LINEb[XPTlisten_timer]%;
macro Nid = LINEb[XPTnid]%;
macro NMstate = LINEb[XPTnstate]%;
macro NMXid = LINEb[XPTnmxid]%;
macro Nnm = LINEb[XPTnnm]%;
macro Nnml = LINEb[XPTnnml]%;
macro Nty = LINEb[XPTnty]%;
macro OWNED = LINEb[TLIowned]%;
macro Ph2circuit = LINEb[XPTphase2_circuit]%;
macro Ph2only = LINEb[TLIph2only]%;
macro Send_hello = LINEb[XPTsend_hello]%;
macro Send_TI = LINEb[TLIsend_TI]%;
macro Send_TV = LINEb[TLIsend_TV]%;
macro Service_line = LINEb[XPTinit_line]%;
macro Srm = LINEb[XPTsend_routes]%;
macro Time_circuit_zeroed = LINEb[TLItime_zeroed]%;
macro TLIhandle = LINEb[XPTTLIhandle]%;
macro Transit_Congestion = LINEb[XPTxit_cng]%;
macro Transit_In = LINEb[XPTxit_rcv]%;
macro Transit_Out = LINEb[XPTxit_xmt]%;
macro XPThandle = LINEb[XPTXPThandle]%;
macro XPTstate = LINEb[TLIxstate]%;
!
! Literal values
!
literal ! Node types (values of the Nty vector)
Full = 2, ! Full routing node type
Small = 3, ! Small routing node type
PhTwo = 4, ! Standard Phase II node type
TOPS20 = 5; ! TOPS-20 Phase II node type
$literal ! DLLstate values:
DLL_FREE = 0, ! Not assigned
DLL_OFF = $distinct, ! Off
DLL_SYNCHRONIZING = $distinct, ! Synch
DLL_MAINTENANCE = $distinct, ! Maint
DLL_RUNNING = $distinct, ! Run
DLL_LO = min (DLL_FREE,DLL_OFF,DLL_SYNCHRONIZING,DLL_MAINTENANCE,DLL_RUNNING),
DLL_HI = max (DLL_FREE,DLL_OFF,DLL_SYNCHRONIZING,DLL_MAINTENANCE,DLL_RUNNING);
literal !Network Management states for a circuit
ON = 0; ! State ON
! OFF = 2; ! State OFF
literal !Transport states for a circuit
HA = 0, ! Halt
DT = 1, ! DLL stop in progress - line not restarting
OFF = 2, ! "Line down" in progress- line not restarting
LR = 3, ! "Line down" in progress - line restarting
DS = 4, ! DLL start in progress
TI = 5, ! Transport init in progress
TV = 6, ! Transport verify expected
TC = 7, ! "Line up" in progress
RU = 8; ! Transport running on line
!
! Line initialization/termination sequence codes
! (for use by Line Support)
!
$literal
FUNCrequest = $distinct, ! DLL request circuit
FUNCrelease = $distinct, ! DLL release circuit
FUNCinitialize = $distinct, ! DLL initialize link
FUNCstop = $distinct, ! DLL stop link
FUNC_TI = $distinct, ! DLL send TI
FUNC_TV = $distinct, ! DLL send TV
FUNCline_down = $distinct, ! XPT line up
FUNCline_up = $distinct, ! XPT line down
FUNClo = min (FUNCrequest, FUNCrelease, FUNCinitialize, FUNCstop,
FUNC_TI, FUNC_TV, FUNCline_down, FUNCline_up),
FUNChi = max (FUNCrequest, FUNCrelease, FUNCinitialize, FUNCstop,
FUNC_TI, FUNC_TV, FUNCline_down, FUNCline_up);
!
! C_XPT_TYPE for $DLL_TRANSMIT CCBs from TLI.
!
$literal
TYPE_TI = $distinct, ! TI message
TYPE_TV = $distinct, ! TV message
TYPElo = min (TYPE_TI, TYPE_TV),
TYPEhi = max (TYPE_TI, TYPE_TV);
!
! Field definitions for a Node Translate Table entry
!
$FIELD NTTfields =
set
NTTname = [$STRING(6)], !Node name
NTTaddr = [$short_integer],!Node address
$ALIGN(FULLWORD)
NTTlen = [$SUB_BLOCK()] !End of entry
tes;
macro NTTblock = block field (NTTfields)%;
!
! Field definitions for a Link Translate Table entry
!
$FIELD LTTfields =
set
LTTnode1 = [$short_integer],!Pair 1, node address
$OVERLAY(LTTnode1)
LTTnode = [$short_integer],! Node address of a half-entry
$CONTINUE
LTTlink1 = [$short_integer],!Pair 1, link address
$OVERLAY(LTTlink1)
LTTlink = [$short_integer],! Link address of a half-entry
$CONTINUE
LTTnode2 = [$short_integer],!Pair 2, node address
LTTlink2 = [$short_integer],!Pair 2, link address
LTTlen = [$SUB_BLOCK()] !End of entry
tes;
macro LTTblock = block field (LTTfields)%;
!
! Field mapping for Transport password data base entry
!
$FIELD PWDfields =
set
TLIplink = [$address], ! Link to next password entry
TLIpnode = [$short_integer], ! Node number or 0 (for default)
TLIP2receive = [$byte_string (8)], ! Phase II receive password
TLIP2transmit = [$byte_string (10)],! Phase II transmit password
TLIp3receive_length = [$tiny_integer],
TLIp3receive = [$byte_string(1)] ! Phase III receive password
! Phase III transmit password
tes;
literal
PWDsize = $field_set_size,
PWDlength = PWDsize * %UPVAL; ! Length of node data base entry
macro PWDblock = block [PWDlength] field (PWDfields)%;
!
! Synonyms for PWDb
!
macro PWDlink = PWDb[TLIplink]%;
macro PWDnode = PWDb[TLIpnode]%;
macro PWD2rcv = PWDb[TLIP2receive]%;
macro PWD2TVmsg_len = 10%;
macro PWD2TVmsg_ptr = byt$ptr(PWDb[TLIP2transmit])%;
macro PWD3rcv = PWDb[TLIp3receive]%;
macro PWD3rcv_length = PWDb[TLIp3receive_length]%;
macro PWD3TVmsg_len = (ch$rchar (ch$plus (PWD3TVmsg_ptr,3))+4)%;
macro PWD3TVmsg_ptr = ch$plus(byt$ptr(PWD3rcv),.PWD3rcv_length)%;
!+
!
! Miscellaneous literals
!
!-
literal !Field definitions for Hop,Cost
Hop_P = 10, Hop_S = 5, ! Hop is at <10,5>
Cost_P = 0, Cost_S = 10; ! Cost is at <0,10>
literal Infh = 31; !Infinite path length
literal Infc = 1023; !Infinite path cost
!
! Phase II flag values for NSP
!
literal !Routing header flag
PH2_RTflgs = %o'106';
literal !NSP MSGflgs values
CI_MSGflgs = %o'30', ! CI
CC_MSGflgs = %o'50', ! CC
DI_MSGflgs = %o'70', ! DI
DC_MSGflgs = %o'110'; ! DC
literal !Node Init/Verify values
OTI_CTLflg = %o'130', ! Node Init message flag byte
INIT_SUBflg = 1, ! Node Init subcode
VER_SUBflg = 2, ! Node Verify subcode
OTIservices = 7; ! "SERVICES" byte supplying intercept
literal !DC error codes
NO_PATH_ERROR = 39,
MISC_ERROR = 7;
!
! Flag bits in the Phase III routing header
!
literal
ALMflg = %o'4', !1 = Alarm message
RQRflg = %o'10', !1 = "return to sender" requested
RTSflg = %o'20', !1 = packet being returned to sender
EVflg = %o'100'; !1 = Phase II header
!0 = Phase III header
!
! Phase III control header flags
!
literal
INIT_CTLflg = 1, !Transport Init
VFY_req = 4, ! Flag in init. to request Node Verify
VERIFY_CTLflg = 3, !Transport Verify
HELLO_CTLflg = 5, !Hello or Test message
ROUTING_CTLflg = 7; !Routing message
literal !Transport flags:
Running = 1, ! Transport is active
Rfail = 2; ! A recoverable resource failure has occurred
!
! Size of the buffer necessary for circuit initialization
! Equal to the largest:
! Transport Init
! Node Init
! Transport Verify
! Node Verify
!
literal
INITbuffer_size = 58;
!
! Error codes (non-event)
!
DECLARE_SEVERITY (XPT, SUCCESS, INFO, ERROR, SEVERE);
$XPT_SUCCESS (XPT$_SUCCESS, ' (just a filler)')
$XPT_SEVERE (XPT$_CHECK, ' XPTDEC - corrupted data base')
$XPT_ERROR (XPT$_IFC, ' XPTFWD - invalid function code in a CCB')
! P1 = function code
$XPT_ERROR (XPT$_DNS, ' XPTSEL - invalid SELF destination')
! P1 = destination
$XPT_ERROR (XPT$_IANT, ' XPTSEL - invalid adjacent node type')
! P1 = node type
$XPT_ERROR (XPT$_ICPT0, ' XPTSEL - duplicate CI received')
! P1 = source node
! P2 = source link
! P3 = destination node
! P4 = destination link
$XPT_INFO (XPT$_ICPT1, ' XPTSEL - unrecognized destination address')
! P1 = MSGflgs
! P2 = source node
! P3 = source link
! P4 = destination node
! P5 = destination link
$XPT_INFO (XPT$_ICPT2, ' XPTSEL - unrecognized source address')
! P1 = MSGflgs
! P2 = source node
! P3 = source link
! P4 = destination node
! P5 = destination link
$XPT_INFO (XPT$_NFI, ' XPTSEL - intercept link table full')
$XPT_SEVERE (XPT$_BUF, ' XPTITF - lost buffer detected')
$XPT_ERROR (XPT$_REQU, ' XPTTIM - retry of local transmit')
$XPT_SEVERE (XPT$_FMT, ' XPTSEL - invalid message format')
$XPT_SEVERE (XPT$_PAU, ' TLILIN - CCB lost while pausing')
$XPT_SEVERE (XPT$_REE, ' XPTINI - insufficient resources to initialize')
!
! Error codes (events)
!
literal
$XPT$E_AGE = 0, ! Aged Packet Loss
$XPT$E_UNR = 1, ! Node Unreachable Packet Loss
$XPT$E_RNG = 2, ! Node Out-of-Range Packet Loss
$XPT$E_SIZ = 3, ! Oversize Packet Loss
$XPT$E_FMT = 4, ! Packet Format Error
$XPT$E_RUL = 5, ! Partial Routing Update Loss
$XPT$E_VER = 6, ! Verification Reject
$XPT$E_LLF = 7, ! Line down, line fault
$XPT$E_LSF = 8, ! Line down, software fault
$XPT$E_LOF = 9, ! Line down, operator cause
$XPT$E_LUP = 10, ! Line up
$XPT$E_ILF = 11, ! Initialization failure, line fault
$XPT$E_ISF = 12, ! Initialization failure, software fault
$XPT$E_IOF = 13, ! Initialization failure, operator cause
$XPT$E_NRC = (14 or (1^15));! Node reachability change (flag means
! entity ID is a node address)