sbin/iscontrol/pdu.h

   1 /*-
   2  * Copyright (c) 2005 Daniel Braniss <danny@cs.huji.ac.il>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD$
  27  */
  28 /*
  29  | $Id: pdu.h,v 2.1 2006/11/12 08:06:51 danny Exp $
  30  */
  31
  32 /*
  33  | keep in BIG endian order (network byte order).
  34  */
  35
  36 typedef struct login_req {
  37      char       cmd;    // 0x03
  38
  39      u_char     NSG:2;
  40      u_char     CSG:2;
  41      u_char     _:2;
  42      u_char     C:1;
  43      u_char     T:1;
  44
  45      char       v_max;
  46      char       v_min;
  47
  48      int        len;    // remapped via standard bhs
  49      char       isid[6];
  50      short      tsih;
  51      int        itt;    // Initiator Task Tag;
  52
  53      int        CID:16;
  54      int        rsv:16;
  55
  56      int        cmdSN;
  57      int        expStatSN;
  58      int        unused[4];
  59 } login_req_t;
  60
  61 typedef struct login_rsp {
  62      char       cmd;    // 0x23
  63      u_char     NSG:2;
  64      u_char     CSG:2;
  65      u_char     _1:2;
  66      u_char     C:1;
  67      u_char     T:1;
  68
  69      char       v_max;
  70      char       v_act;
  71
  72      int        len;    // remapped via standard bhs
  73      char       isid[6];
  74      short      tsih;
  75      int        itt;    // Initiator Task Tag;
  76      int        _2;
  77      rsp_sn_t   sn;
  78      int        status:16;
  79      int        _3:16;
  80      int        _4[2];
  81 } login_rsp_t;
  82
  83 typedef struct text_req {
  84      char       cmd;    // 0x04
  85
  86      u_char     _1:6;
  87      u_char     C:1;    // Continuation
  88      u_char     F:1;    // Final
  89      char       _2[2];
  90
  91      int        len;
  92      int        itt;            // Initiator Task Tag
  93      int        LUN[2];
  94      int        ttt;            // Target Transfer Tag
  95      int        cmdSN;
  96      int        expStatSN;
  97      int        unused[4];
  98 } text_req_t;
  99
 100 /*
 101  | Responses
 102  */
 103 typedef struct logout_req {
 104      char       cmd;    // 0x06
 105      char       reason; // 0 - close session
 106                         // 1 - close connection
 107                         // 2 - remove the connection for recovery
 108      char       _2[2];
 109
 110      int        len;
 111      int        _r[2];
 112      int        itt;    // Initiator Task Tag;
 113
 114      u_int      CID:16;
 115      u_int      rsv:16;
 116
 117      int        cmdSN;
 118      int        expStatSN;
 119      int        unused[4];
 120 } logout_req_t;
 121
 122 typedef struct logout_rsp {
 123      char       cmd;    // 0x26
 124      char       cbits;
 125      char       _1[2];
 126      int        len;
 127      int        _2[2];
 128      int        itt;
 129      int        _3;
 130      rsp_sn_t   sn;
 131      short      time2wait;
 132      short      time2retain;
 133      int        _4;
 134 } logout_rsp_t;