rfc2877.txt
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The IBMPPRSRC1, IBMPPRSRC2 and IBMENVELOPE custom USERVAR's do not map directly to their descriptions in Chapter 8 in the Communications Configuration Reference [5]. To map these, use the index listed here: IBMPPRSRC1 HEX IBMPPRSRC2 HEX IBMENVELOPE HEX ---------- ----- ---------- ----- ----------- ----- *NONE 'FF'X *NONE 'FF'X *NONE 'FF'X *MFRTYPMDL '00'X *MFRTYPMDL '00'X *MFRTYPMDL '00'X *LETTER '01'X *LETTER '01'X *B5 '06'X *LEGAL '02'X *LEGAL '02'X *MONARCH '09'X *EXECUTIVE '03'X *EXECUTIVE '03'X *NUMBER9 '0A'X *A4 '04'X *A4 '04'X *NUMBER10 '0B'X *A5 '05'X *A5 '05'X *C5 '0C'X *B5 '06'X *B5 '06'X *DL '0D'X *CONT80 '07'X *CONT80 '07'X *CONT132 '08'X *CONT132 '08'X *A3 '0E'X *A3 '0E'X *B4 '0F'X *B4 '0F'X *LEDGER '10'X *LEDGER '10'X Note 1: For IBMPPRSRC2, *CONT80 and *CONT132 support starts at V3R7. Note 2: For IBMPPRSRC1 and IBMPPRSRC2, *A3, *B4 and *LEDGER support starts at V3R7.Murphy, et al. Informational [Page 17] RFC 2877 5250 Telnet Enhancements July 20008. Telnet Printer Terminal Types New Telnet options are defined for the printer pass-through mode of operation. To enable printer pass-through mode, both the client and server must agree to at least support the Transmit-Binary, End-Of- Record, and Terminal-Type Telnet options. The following are new terminal types for printers: TERMINAL-TYPE DESCRIPTION ------------- ------------------- IBM-5553-B01 Double-Byte printer IBM-3812-1 Single-Byte printer Specific characteristics of the IBM-5553-B01 or IBM-3812-1 printers are specified through the USERVAR IBMMFRTYPMDL, which specifies the manufacturer type and model. An example of a typical negotiation process to establish printer pass-through mode of operation is shown below. In this example, the server initiates the negotiation by sending the DO TERMINAL-TYPE request. For DBCS environments, if IBMTRANSFORM is set to 1 (use Host Print Transform), then the virtual device created is 3812, not 5553. Therefore, IBM-3812-1 should be negotiated for TERMINAL-TYPE, and not IBM-5553-B01. AS/400 Telnet server Enhanced Telnet client -------------------------- -------------------------- IAC DO NEW-ENVIRON --> <-- IAC WILL NEW-ENVIRON IAC SB NEW-ENVIRON SEND VAR USERVAR IAC SE --> IAC SB NEW-ENVIRON IS USERVAR "DEVNAME" VALUE "PCPRINTER" USERVAR "IBMMSGQNAME" VALUE "QSYSOPR" USERVAR "IBMMSGQLIB" VALUE "*LIBL" USERVAR "IBMTRANSFORM" VALUE "0" USERVAR "IBMFONT" VALUE "12" USERVAR "IBMFORMFEED" VALUE "C" USERVAR "IBMPPRSRC1" VALUE ESC '01'X USERVAR "IBMPPRSRC2" VALUE '04'X USERVAR "IBMENVELOPE" VALUE IAC 'FF'X <-- IAC SE IAC DO TERMINAL-TYPE --> <-- IAC WILL TERMINAL-TYPE IAC SB TERMINAL-TYPE SEND IAC SE -->Murphy, et al. Informational [Page 18] RFC 2877 5250 Telnet Enhancements July 2000 IAC SB TERMINAL-TYPE IS IBM-3812-1 <-- IAC SE IAC DO BINARY --> <-- IAC WILL BINARY IAC DO EOR --> <-- IAC WILL EOR Some points about the above example. The IBMPPRSRC1 value requires escaping the value using ESC according to RFC 1572 [13]. The IBMPPRSRC2 does not require an ESC character since '04'X has no conflict with RFC 1572 options. Finally, to send 'FF'X for the IBMENVELOPE value, escape the 'FF'X value by using another 'FF'X (called "doubling"), so as not to have the value interpreted as a Telnet character per RFC 854 [8]. Actual bytes transmitted in the above example are shown in hex below. AS/400 Telnet server Enhanced Telnet client -------------------------- -------------------------- FF FD 27 --> <-- FF FB 27 FF FA 27 01 00 03 FF F0 --> FF FA 27 00 03 44 45 56 4E 41 4D 45 01 50 43 50 52 49 4E 54 45 52 03 49 42 4D 4D 53 47 51 4E 41 4D 45 01 51 53 59 53 4F 50 52 03 49 42 4D 4D 53 47 51 4C 49 42 01 2A 4C 49 42 4C 03 49 42 4D 54 52 41 4E 53 46 4F 52 4D 01 30 03 49 42 4D 46 4F 4E 54 01 31 32 03 49 42 4D 46 4F 52 4D 46 45 45 44 01 43 03 49 42 4D 50 50 52 53 52 43 31 01 02 01 03 49 42 4D 50 50 52 53 52 43 32 01 04 03 49 42 4D 45 4E 56 45 4C 4F <-- 50 45 01 FF FF FF F0 FF FD 18 --> <-- FF FB 18 FF FA 18 01 FF F0 --> FF FA 18 00 49 42 4D 2D <-- 33 38 31 32 2D 31 FF F0 FF FD 00 --> <-- FF FB 00 FF FD 19 -->Murphy, et al. Informational [Page 19] RFC 2877 5250 Telnet Enhancements July 2000 FF FB 199. Telnet Printer Startup Response Record for Printer Emulators Once Telnet negotiation for a 5250 pass-through mode is completed, the 5250 Telnet server will initiate a virtual printer power-on sequence on behalf of the Telnet client. The Telnet server will supply a Startup Response Record to the Telnet client with the status of the printer power-on sequence, indicating success or failure of the virtual printer power-on sequence. This section shows an example of two Startup Response Records. The source device is a type 3812 model 01 printer with name "PCPRINTER" on the target system "TARGET". Figure 1 shows an example of a successful response; Figure 2 shows an example of an error response.9.1 Example of a Success Response Record The response record in Figure 1 was sent by an AS/400 at Release V4R2. It is an example of the target sending back a successful Startup Response Record. +------------------------------------------------------------------+ | +----- Pass-Through header | | | +--- Response data | | | | +---- Start diagnostic information| | | | | | | +----------++----------++--------------------------------------- | | | || || | | 004912A090000560060020C0003D0000C9F9F0F2E3C1D9C7C5E34040D7C3D7D9 | | | | T A R G E T P C P R | | +------+ | | Response Code (I902) | | | | ---------------------------------------------------------------- | | | | C9D5E3C5D9400000000000000000000000000000000000000000000000000000 | | I N T E R | | | | +------- End of diagnostic information | | | | | -----------------+ | | | | | 000000000000000000 | +------------------------------------------------------------------+ Figure 1. Example of a success response record.Murphy, et al. Informational [Page 20] RFC 2877 5250 Telnet Enhancements July 2000 - '0049'X = Length pass-through data, including this length field - '12A0'X = GDS LU6.2 header - '90000560060020C0003D0000'X = Fixed value fields - 'C9F9F0F2'X = Response Code (I902) - 'E3C1D9C7C5E34040'X = System Name (TARGET) - 'D7C3D7D9C9D5E3C5D940'X = Object Name (PCPRINTER)9.2 Example of an Error Response Record The response record in Figure 2 is one that reports an error. The virtual device named "PCPRINTER", is not available on the target system "TARGET", because the device is not available. You would normally see this error if the printer was already assigned to another Telnet session. +------------------------------------------------------------------+ | +----- Pass-Through header | | | +--- Response data | | | | +---- Start diagnostic information| | | | | | | +----------++----------++--------------------------------------- | | | || || | | 004912A09000056006008200003D0000F8F9F0F2E3C1D9C7C5E34040D7C3D7D9 | | | | T A R G E T P C P R | | +------+ | | Response Code (8902) | | | | ---------------------------------------------------------------- | | | | C9D5E3C5D9400000000000000000000000000000000000000000000000000000 | | I N T E R | | | | +------- End of diagnostic information | | | | | -----------------+ | | | | | 000000000000000000 | +------------------------------------------------------------------+ Figure 2. Example of an error response record. - '0049'X = Length pass-through data, including this length field - '12A0'X = GDS LU6.2 header - '90000560060020C0003D0000'X = Fixed value fields - 'F8F9F0F2'X = Response Code (8902) - 'E3C1D9C7C5E34040'X = System Name (TARGET) - 'D7C3D7D9C9D5E3C5D940'X = Object Name (PCPRINTER)Murphy, et al. Informational [Page 21] RFC 2877 5250 Telnet Enhancements July 20009.3 Response Codes The Start-Up Response Record success response codes: CODE DESCRIPTION ---- ------------------------------------------------------ I901 Virtual device has less function than source device I902 Session successfully started I906 Automatic sign-on requested, but not allowed. Session still allowed; a sign-on screen will be coming. The Start-Up Response Record error response codes: CODE DESCRIPTION ---- ------------------------------------------------------ 2702 Device description not found. 2703 Controller description not found. 2777 Damaged device description. 8901 Device not varied on. 8902 Device not available. 8903 Device not valid for session. 8906 Session initiation failed. 8907 Session failure. 8910 Controller not valid for session. 8916 No matching device found. 8917 Not authorized to object. 8918 Job canceled. 8920 Object partially damaged. 8921 Communications error. 8922 Negative response received. 8923 Start-up record built incorrectly. 8925 Creation of device failed. 8928 Change of device failed. 8929 Vary on or vary off failed. 8930 Message queue does not exist. 8934 Start-up for S/36 WSF received. 8935 Session rejected. 8936 Security failure on session attempt. 8937 Automatic sign-on rejected. 8940 Automatic configuration failed or not allowed. I904 Source system at incompatible release.⌨️ 快捷键说明
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