TCP/IP management APIs (3)
**
** Description : Print TCP/IP network routes
**
** Program summary
** ---------------
**
** Object - User space APIs:
** QUSCRTUS Create user space Creates a user space in either
** user domain or system domain.
** Only user domain user spaces are
** accessible by the user space APIs.
**
** QUSDLTUS Delete user space Deletes the user space specified.
**
** QUSPTRUS Retrieve pointer to The address of the first byte
** user space of the storage allocated by the
** user space requested is returned.
**
**
** Communication - TCP/IP management APIs:
** QtocRtvTCPA Retrieve TCP/IP Retrieves TCP/IPv4 and TCP/IPv6
** attributes (V5R2) stack attributes.
**
** QtocLstNetRte List network Returns a detailed list of all
** routes network routes.
**
**
**
** Sequence of events:
** 1. The current operational status of the TCP/IP stack is retrieved
** to ensure that TCP/IP connection information is available.
**
** 2. A user space is created and a list of the TCP/IP network routes
** is loaded to the user space.
**
** 3. For each TCP/IP network route retrieved from user space a report
** line is printed.
**
** 4. Finally the user space is deleted and the program is terminated.
**
**
** Programmer's notes:
** Earliest release program will run: V5R1
**
** According to the API documentation there are 5 route types (0-4)
** and route type 2 maps to HOST. It turns out that ICMP added host
** routes are given route type 5 and therefore an extra HOST entry
** in the mapping table is necessary to ensure a correct result.
**
** The examples here are all retrieving information about TCP/IPv4
** stacks and connections. As of V5R2 new API formats are available
** for retrieval of similar TCP/IPv6 stack and route information.
**
**
** Compile options:
**
** CrtRpgMod Module( CBX1062 ) DbgView( *LIST )
**
** CrtPgm Pgm( CBX1062 )
** Module( CBX1062 )
**
**-- Header specifications: --------------------------------------------**
H Option( *SrcStmt )
**-- Printer file: -----------------------------------------------------**
FQSYSPRT O F 132 Printer InfDs( PrtLinInf ) OflInd( *InOf )
**-- Printer file information: -----------------------------------------**
D PrtLinInf Ds
D PlOvfLin 5i 0 Overlay( PrtLinInf: 188 )
D PlCurLin 5i 0 Overlay( PrtLinInf: 367 )
D PlCurPag 5i 0 Overlay( PrtLinInf: 369 )
**-- System information: -----------------------------------------------**
D SDs
D PsPgmNam *Proc
**-- Global declarations: ----------------------------------------------**
D Lix s 10u 0
D PxUsrSpc c 'LSTNETRTE QTEMP'
**
D Time s 6s 0
D NbrRcds s 10u 0
D TcpRteTyp s 7a
D TcpRteSrc s 6a
D TcpRteSts s 7a
**-- Route type table: -------------------------------------------------**
D RteTbl Ds
D RteTyp 7a Dim( 6 )
D 42a Overlay( RteTbl )
D Inz( 'DFTRTE DIRECT HOST SUBNET +
D NET HOST ' )
**-- Route source table: -----------------------------------------------**
D SrcTbl Ds
D RteSrc 6a Dim( 5 )
D 30a Overlay( SrcTbl )
D Inz( 'OTHER CFG ICMP SNMP RIP' )
**-- Route status table: -----------------------------------------------**
D StsTbl Ds
D RteSts 7a Dim( 5 )
D 35a Overlay( StsTbl )
D Inz( 'YES NO DOD NO GATE' )
**-- Api error data structure: -----------------------------------------**
D ApiError Ds
D AeBytPro 10i 0 Inz( %Size( ApiError ))
D AeBytAvl 10i 0 Inz
D AeMsgId 7a
D 1a
D AeMsgDta 128a
**-- API Header information: -------------------------------------------**
D HdrInf Ds Based( pHdrInf )
D HiUsrSpcNamSp 10a
D HiUsrSpcLibSp 10a
**-- User space generic header: ---------- -----------------------------**
D UsrSpc Ds Based( pUsrSpc )
D UsOfsHdr 10i 0 Overlay( UsrSpc: 117 )
D UsOfsLst 10i 0 Overlay( UsrSpc: 125 )
D UsNumLstEnt 10i 0 Overlay( UsrSpc: 133 )
D UsSizLstEnt 10i 0 Overlay( UsrSpc: 137 )
**-- User space pointers: ----------------------------------------------**
D pUsrSpc s * Inz( *Null )
D pHdrInf s * Inz( *Null )
D pLstEnt s * Inz( *Null )
**-- TCP/IP attributes: ------------------------------------------------**
D TCPA0100 Ds
D T1BytRtn 10u 0
D T1BytAvl 10u 0
D T1StkSts 10u 0
D T1ActTim 10u 0
D T1LstStrD 8a
D T1LstStrT 6a
D T1LstEndD 8a
D T1LstEndT 6a
D T1StrJob 10a
D T1StrUsr 10a
D T1StrNbr 6a
D T1StrJobInt 16a
D T1EndJob 10a
D T1EndUsr 10a
D T1EndNbr 6a
D T1EndJobInt 16a
D T1OfsAddInf 10u 0
D T1LenAddInf 10u 0
**-- Route list entry: -------------------------------------------------**
D NRTE0100 Ds Based( pLstEnt )
D R1RteDst 15a
D 1a
D R1RteDstB 10u 0
D R1SubMsk 15a
D 1a
D R1SubMskB 10u 0
D R1NxtHop 15a
D 1a
D R1NxtHopB 10u 0
D R1RteSts 10u 0
D R1TypSrv 10i 0
D R1RteMtu 10i 0
D R1RteTyp 10u 0
D R1RteSrc 10i 0
D R1RtePcd 10u 0
D R1LocBndIfcSt 10u 0
D R1LocBndTyp 10u 0
D R1LocBndLinTp 10i 0
D R1LocBndIfc 15a
D 1a
D R1LocBndIfcB 10u 0
D R1LocSubMsk 15a
D 1a
D R1LocSubMskB 10u 0
D R1LocNetAdr 15a
D 1a
D R1LocNetAdrB 10u 0
D R1LocBndLinD 10a
D R1ChgDat 8a
D R1ChgTim 6a
**-- Create user space: -------------------------------------------------**
D CrtUsrSpc Pr ExtPgm( 'QUSCRTUS' )
D CsSpcNamQ 20a Const
D C***tAtr 10a Const
D CsInzSiz 10i 0 Const
D CsInzVal 1a Const
D CsPubAut 10a Const
D CsText 50a Const
**-- Optional 1:
D CsReplace 10a Const Options( *NoPass )
D CsError 32767a Options( *NoPass: *VarSize )
**-- Optional 2:
D CsDomain 10a Const Options( *NoPass )
**-- Delete user space: -------------------------------------------------**
D DltUsrSpc Pr ExtPgm( 'QUSDLTUS' )
D DsSpcNamQ 20a Const
D DsError 32767a Options( *VarSize )
**-- Retrieve pointer to user space: ------------------------------------**
D RtvPtrSpc Pr ExtPgm( 'QUSPTRUS' )
D RpSpcNamQ 20a Const
D RpPointer *
D RpError 32767a Options( *NoPass: *VarSize )
**-- Retrieve TCP/IP attributes: ---------------------------------------**
D RtvTcpA Pr ExtProc( 'QtocRtvTCPA' )
D RtRcvVar 32767a Options( *VarSize )
D RtRcvVarLen 10i 0 Const
D RtFmtNam 8a Const
D RtError 32767a Options( *VarSize )
**-- List network routes: ----------------------------------------------**
D LstNetRte Pr ExtProc( 'QtocLstNetRte' )
D LiSpcNamQ 20a Const
D LiFmtNam 8a Const
D LiError 32767a Options( *VarSize )
**
**-- Mainline: ---------------------------------------------------------**
**
C Time Time
C Except Header
**
C CallP RtvTcpA( TCPA0100
C : %Size( TCPA0100 )
C : 'TCPA0100'
C : ApiError
C )
**
C Select
C When AeBytAvl > *Zero
**-- Error occurred...
C Except NoStack
**
C When T1StkSts = 0 Or
C T1StkSts = 2
**-- TCP/IP stack not operational...
C Except NoStack
**
C Other
C CallP CrtUsrSpc( PxUsrSpc
C : *Blanks
C : 65535
C : x'00'
C : '*CHANGE'
C : *Blanks
C : '*YES'
C : ApiError
C )
**
C CallP LstNetRte( PxUsrSpc
C : 'NRTE0100'
C : ApiError
C )
**
C If AeBytAvl = *Zero
C ExSr PrcLstEnt
C EndIf
**
C CallP DltUsrSpc( PxUsrSpc
C : ApiError
C )
**
C If NbrRcds = *Zero
C Except NoRcds
C EndIf
C EndSl
**
C Eval *InLr = *On
C Return
**
**-- Process list entries: ---------------------------------------------**
C PrcLstEnt BegSr
**
C CallP RtvPtrSpc( PxUsrSpc
C : pUsrSpc
C )
**
C Eval pHdrInf = pUsrSpc + UsOfsHdr
C Eval pLstEnt = pUsrSpc + UsOfsLst
**
C For Lix = 1 to UsNumLstEnt
**
C ExSr PrtRteDtl
**
C If Lix < UsNumLstEnt
C Eval pLstEnt = pLstEnt + UsSizLstEnt
C EndIf
C EndFor
**
C EndSr
**-- Print route detail line: ------------------------------------------**
C PrtRteDtl BegSr
**
C If PlCurLin > PlOvfLin - 3
C Except Header
C EndIf
**
C Eval TcpRteTyp = RteTyp(R1RteTyp + 1)
C Eval TcpRteSrc = RteSrc(R1RteSrc + 2)
C Eval TcpRteSts = RteSts(R1RteSts)
**
C Eval NbrRcds = NbrRcds + 1
C Except RteDtl
**
C EndSr
**-- Print file definition: --------------------------------------------**
OQSYSPRT EF Header 2 3
O UDATE Y 8
O Time 18 ' : : '
O 75 'Print TCP/IP network -
O routes'
O 107 'Program:'
O PsPgmNam 118
O 126 'Page:'
O PAGE + 1
OQSYSPRT EF Header 1
O 17 'Route destination'
O 30 'Subnet mask'
O 46 'Next hop'
O 65 'Route type'
O 74 '-source'
O 83 '-status'
O 96 'MTU'
O 111 'Change date'
O 118 '-time'
**
OQSYSPRT EF RteDtl 1
O R1RteDst 15
O R1SubMsk 34
O R1NxtHop 53
O TcpRteTyp 62
O TcpRteSrc 73
O TcpRteSts 83
O R1RteMtu 3 96
O R1ChgDat 110
O R1ChgTim 119
**
OQSYSPRT EF NoStack 1
O 26 '(TCP/IP stack not active)'
OQSYSPRT EF NoRcds 1
O 26 '(No entries found)'
Thanks to Carsten Flensburg
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