freebsd-skq/sbin/iscontrol/pdu.h
scottl 08b4d87cfe Introduce Danny Braniss' iSCSI initiator, version 2.0.99. Please read the
included man pages on how to use it.  This code is still somewhat experimental
but has been successfully tested on a number of targets.  Many thanks to
Danny for contributing this.

Approved by: re
2007-07-24 15:35:02 +00:00

135 lines
3.2 KiB
C

/*-
* Copyright (c) 2005 Daniel Braniss <danny@cs.huji.ac.il>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
| $Id: pdu.h,v 2.1 2006/11/12 08:06:51 danny Exp $
*/
/*
| keep in BIG endian order (network byte order).
*/
typedef struct login_req {
char cmd; // 0x03
u_char NSG:2;
u_char CSG:2;
u_char _:2;
u_char C:1;
u_char T:1;
char v_max;
char v_min;
int len; // remapped via standard bhs
char isid[6];
short tsih;
int itt; // Initiator Task Tag;
int CID:16;
int rsv:16;
int cmdSN;
int expStatSN;
int unused[4];
} login_req_t;
typedef struct login_rsp {
char cmd; // 0x23
u_char NSG:2;
u_char CSG:2;
u_char _1:2;
u_char C:1;
u_char T:1;
char v_max;
char v_act;
int len; // remapped via standard bhs
char isid[6];
short tsih;
int itt; // Initiator Task Tag;
int _2;
rsp_sn_t sn;
int status:16;
int _3:16;
int _4[2];
} login_rsp_t;
typedef struct text_req {
char cmd; // 0x04
u_char _1:6;
u_char C:1; // Continuation
u_char F:1; // Final
char _2[2];
int len;
int itt; // Initiator Task Tag
int LUN[2];
int ttt; // Target Transfer Tag
int cmdSN;
int expStatSN;
int unused[4];
} text_req_t;
/*
| Responses
*/
typedef struct logout_req {
char cmd; // 0x06
char reason; // 0 - close session
// 1 - close connection
// 2 - remove the connection for recovery
char _2[2];
int len;
int _r[2];
int itt; // Initiator Task Tag;
u_int CID:16;
u_int rsv:16;
int cmdSN;
int expStatSN;
int unused[4];
} logout_req_t;
typedef struct logout_rsp {
char cmd; // 0x26
char cbits;
char _1[2];
int len;
int _2[2];
int itt;
int _3;
rsp_sn_t sn;
short time2wait;
short time2retain;
int _4;
} logout_rsp_t;