Int 68 Fn 01  - Appc/pc - Network Device Control - Attach Logical Unit     [N]

   AH = 01h subfn 2100h
   DS:DX -> control block

Return: control block updated

See Also: AH=01h/SF=2000h,AH=01h/SF=2200h,AH=01h/SF=2B00h

Format of control block:
Offset Size    Description
 00h 12 BYTEs  reserved
 0Ch   WORD    2100h (verb "Attach Logical Unit")
 0Eh  6 BYTEs  00h
 14h   DWORD   (big-endian) return code (see AH=01h/SF=1B00h)
 18h   WORD    70  offset to partner logical unit record
 1Ah  8 BYTEs  (big-endian) logical unit name
 22h  8 BYTEs  (big-endian) logical unit ID
 2Ah   BYTE    logical unit local address
 2Bh   BYTE    logical unit session limit
 2Ch   DWORD   pointer to CREATE_TP_EXIT routine,
       FFFFFFFFh = reject incoming ALLOCATEs
       00000000h = queue ALLOCATEs
 30h   DWORD   00h
 34h   DWORD   pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh=don't log errors
 38h   DWORD   00h
 3Ch   BYTE    maximum TPs
 3Dh   BYTE    queue depth
 3Eh   DWORD   pointer to LU_LU_PASSWORD_EXIT routine, FFFFFFFFh=no pswd exit
 42h   DWORD   00h
 46h   WORD    total length of partner records
 48h   var array of partner logical unit records (see below)

Format of partner logical unit record:
Offset Size    Description
 00h   WORD    length of this partner logical unit record
 02h   WORD    42  offset to mode records
 04h  8 BYTEs  (big-endian) partner logical unit name
 0Ch   BYTE    partner logical unit security capabilities
       bit 7: already verified
       bit 6: conversation level security
       bit 5: session level security
 0Dh   BYTE    partner logical unit session limit
 0Eh   WORD    partner logical unit maximum MC_SEND_LL
 10h  8 BYTEs  (big-endian) partner logical unit DLC name
 18h   BYTE    partner logical unit adapter number
 19h 17 BYTEs  (counted string) partner logical unit adapter address
 2Ah   WORD    total length of mode records
 2Ch 16N BYTEs array of mode records (see below)

Format of mode record:
Offset Size    Description
 00h   WORD    16  length of this mode record
 02h  8 BYTEs  (big-endian) mode name
 0Ah   WORD    RU_SIZE high bound
 0Ch   WORD    RU_SIZE low bound
 0Eh   BYTE    mode maximum negotiable session limit
 0Fh   BYTE    pacing size for receive

Routines defined by LU_LU_PASSWORD_EXIT, CREATE_TP_EXIT, and SYSTEM_LOG_EXIT
pointers are called by pushing the DWORD pointer to the verb on the stack and
then performing a FAR call.

Format of ACCESS_LU_LU_PW verb:
Offset Size    Description
 00h 12 BYTEs  reserved
 0Ch   WORD    1900h (verb "ACCESS_LU_LU_PW")
 0Eh  8 BYTEs  (big-endian) logical unit ID
 16h  8 BYTEs  (big-endian) logical unit name
 1Eh  8 BYTEs  (big-endian) partner logical unit name
 26h 17 BYTEs  (counted string) partner fully qualified logical unit name
 37h   BYTE    password available (0=no, 1=yes)
 38h  8 BYTEs  password

Format of CREATE_TP verb:
Offset Size    Description
 00h 12 BYTEs  reserved
 0Ch   WORD    2300h (verb "CREATE_TP")
 0Eh  6 BYTEs  00h
 14h   DWORD   (big-endian) sense code (see below)
 18h  8 BYTEs  (big-endian) TP ID
 20h  8 BYTEs  (big-endian) logical unit ID
 28h   DWORD   (big-endian) conversation ID
 2Ch   BYTE    0 basic conversation, 1 mapped conversation
 2Dh   BYTE    0 no sync level, 1 confirm
 2Eh   BYTE    reserved
 2Fh 65 BYTEs  (counted string) transaction program name
 70h  6 BYTEs  00h
 76h   WORD    length of ERROR_LOG_DATA to return
 78h   DWORD   pointer to ERROR_LOG_DATA buffer
 7Ch  8 BYTEs  (big-endian) partner logical unit name
 84h 18 BYTEs  (counted string) partner fully qualified logical unit name
 96h  8 BYTEs  (big-endian) mode name
 9Eh 12 BYTEs  00h
 AAh 11 BYTEs  (counted string) password
 B5h 11 BYTEs  (counted string) user ID
 C0h   BYTE    0 verification should be performed
       1 already verified

Values for sense code:
 00000000h Ok
 080F6051h SECURITY_NOT_VALID
 084B6031h TP_NOT_AVAIL_RETRY
 084C0000h TP_NOT_AVAIL_NO_RETRY
 10086021h TP_NAME_NOT_RECOGNIZED
 10086034h CONVERSATION_TYPE_MISMATCH
 10086041h SYNC_LEVEL_NOT_SUPPORTED

Format of SYSLOG verb:
Offset Size    Description
 00h 12 BYTEs  reserved
 0Ch   WORD    2600h (verb "SYSLOG")
 0Eh 10 BYTEs  00h
 18h   WORD    (big-endian) type
 1Ah   DWORD   (big-endian) subtype
 1Eh   DWORD   pointer to ADDITIONAL_INFO
 22h   DWORD   (big-endian) conversation ID
 26h  8 BYTEs  (big-endian) TP ID
 2Eh  8 BYTEs  (big-endian) physical unit or logical unit name
 36h   WORD    length of data
 38h   DWORD   pointer to data
 3Ch   BYTE    00h