f03f5e7de8
These variable names are changed to retain conformity with astyle 3.0.1. Astyle 3.0.1 recognizes 'final' as a keyword and incorrectly formats the iscsi_spec.h file breaking the build. Names were changed to avoid this case and maintain consistency within the struct. Change-Id: I39c29d768c0ddfd459a9e9212c29cf564dad1963 Signed-off-by: Seth Howell <seth.howell@intel.com> Reviewed-on: https://review.gerrithub.io/369905 Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
570 lines
14 KiB
C
570 lines
14 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>.
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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* iSCSI specification definitions
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*/
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#ifndef SPDK_ISCSI_SPEC_H
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#define SPDK_ISCSI_SPEC_H
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#include "spdk/stdinc.h"
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#include "spdk/assert.h"
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#define ISCSI_BHS_LEN 48
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#define ISCSI_DIGEST_LEN 4
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#define ISCSI_ALIGNMENT 4
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/** support version - RFC3720(10.12.4) */
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#define ISCSI_VERSION 0x00
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#define ISCSI_ALIGN(SIZE) \
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(((SIZE) + (ISCSI_ALIGNMENT - 1)) & ~(ISCSI_ALIGNMENT - 1))
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/** for authentication key (non encoded 1024bytes) RFC3720(5.1/11.1.4) */
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#define ISCSI_TEXT_MAX_VAL_LEN 8192
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/**
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* RFC 3720 5.1
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* If not otherwise specified, the maximum length of a simple-value
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* (not its encoded representation) is 255 bytes, not including the delimiter
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* (comma or zero byte).
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*/
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#define ISCSI_TEXT_MAX_SIMPLE_VAL_LEN 255
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#define ISCSI_TEXT_MAX_KEY_LEN 63
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enum iscsi_op {
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/* Initiator opcodes */
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ISCSI_OP_NOPOUT = 0x00,
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ISCSI_OP_SCSI = 0x01,
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ISCSI_OP_TASK = 0x02,
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ISCSI_OP_LOGIN = 0x03,
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ISCSI_OP_TEXT = 0x04,
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ISCSI_OP_SCSI_DATAOUT = 0x05,
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ISCSI_OP_LOGOUT = 0x06,
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ISCSI_OP_SNACK = 0x10,
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ISCSI_OP_VENDOR_1C = 0x1c,
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ISCSI_OP_VENDOR_1D = 0x1d,
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ISCSI_OP_VENDOR_1E = 0x1e,
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/* Target opcodes */
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ISCSI_OP_NOPIN = 0x20,
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ISCSI_OP_SCSI_RSP = 0x21,
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ISCSI_OP_TASK_RSP = 0x22,
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ISCSI_OP_LOGIN_RSP = 0x23,
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ISCSI_OP_TEXT_RSP = 0x24,
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ISCSI_OP_SCSI_DATAIN = 0x25,
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ISCSI_OP_LOGOUT_RSP = 0x26,
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ISCSI_OP_R2T = 0x31,
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ISCSI_OP_ASYNC = 0x32,
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ISCSI_OP_VENDOR_3C = 0x3c,
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ISCSI_OP_VENDOR_3D = 0x3d,
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ISCSI_OP_VENDOR_3E = 0x3e,
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ISCSI_OP_REJECT = 0x3f,
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};
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enum iscsi_task_func {
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ISCSI_TASK_FUNC_ABORT_TASK = 1,
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ISCSI_TASK_FUNC_ABORT_TASK_SET = 2,
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ISCSI_TASK_FUNC_CLEAR_ACA = 3,
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ISCSI_TASK_FUNC_CLEAR_TASK_SET = 4,
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ISCSI_TASK_FUNC_LOGICAL_UNIT_RESET = 5,
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ISCSI_TASK_FUNC_TARGET_WARM_RESET = 6,
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ISCSI_TASK_FUNC_TARGET_COLD_RESET = 7,
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ISCSI_TASK_FUNC_TASK_REASSIGN = 8,
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};
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enum iscsi_task_func_resp {
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ISCSI_TASK_FUNC_RESP_COMPLETE = 0,
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ISCSI_TASK_FUNC_RESP_TASK_NOT_EXIST = 1,
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ISCSI_TASK_FUNC_RESP_LUN_NOT_EXIST = 2,
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ISCSI_TASK_FUNC_RESP_TASK_STILL_ALLEGIANT = 3,
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ISCSI_TASK_FUNC_RESP_REASSIGNMENT_NOT_SUPPORTED = 4,
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ISCSI_TASK_FUNC_RESP_FUNC_NOT_SUPPORTED = 5,
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ISCSI_TASK_FUNC_RESP_AUTHORIZATION_FAILED = 6,
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ISCSI_TASK_FUNC_REJECTED = 255
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};
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struct iscsi_bhs {
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uint8_t opcode : 6;
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uint8_t immediate : 1;
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uint8_t reserved : 1;
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uint8_t flags;
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uint8_t rsv[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t ttt;
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uint32_t stat_sn;
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uint32_t exp_stat_sn;
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uint32_t max_stat_sn;
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uint8_t res3[12];
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};
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SPDK_STATIC_ASSERT(sizeof(struct iscsi_bhs) == ISCSI_BHS_LEN, "ISCSI_BHS_LEN mismatch");
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struct iscsi_bhs_async {
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uint8_t opcode : 6; /* opcode = 0x32 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t res[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t ffffffff;
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uint32_t res3;
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uint32_t stat_sn;
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uint32_t exp_cmd_sn;
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uint32_t max_cmd_sn;
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uint8_t async_event;
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uint8_t async_vcode;
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uint16_t param1;
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uint16_t param2;
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uint16_t param3;
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uint8_t res4[4];
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};
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struct iscsi_bhs_login_req {
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uint8_t opcode : 6; /* opcode = 0x03 */
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uint8_t immediate : 1;
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uint8_t reserved : 1;
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uint8_t flags;
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uint8_t version_max;
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uint8_t version_min;
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint8_t isid[6];
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uint16_t tsih;
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uint32_t itt;
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uint16_t cid;
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uint16_t res2;
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uint32_t cmd_sn;
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uint32_t exp_stat_sn;
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uint8_t res3[16];
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};
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struct iscsi_bhs_login_rsp {
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uint8_t opcode : 6; /* opcode = 0x23 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t version_max;
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uint8_t version_act;
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint8_t isid[6];
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uint16_t tsih;
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uint32_t itt;
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uint32_t res2;
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uint32_t stat_sn;
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uint32_t exp_cmd_sn;
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uint32_t max_cmd_sn;
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uint8_t status_class;
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uint8_t status_detail;
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uint8_t res3[10];
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};
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struct iscsi_bhs_logout_req {
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uint8_t opcode : 6; /* opcode = 0x06 */
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uint8_t immediate : 1;
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uint8_t reserved : 1;
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uint8_t reason;
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uint8_t res[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint8_t res2[8];
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uint32_t itt;
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uint16_t cid;
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uint16_t res3;
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uint32_t cmd_sn;
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uint32_t exp_stat_sn;
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uint8_t res4[16];
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};
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struct iscsi_bhs_logout_resp {
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uint8_t opcode : 6; /* opcode = 0x26 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t response;
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uint8_t res;
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint8_t res2[8];
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uint32_t itt;
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uint32_t res3;
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uint32_t stat_sn;
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uint32_t exp_cmd_sn;
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uint32_t max_cmd_sn;
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uint32_t res4;
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uint16_t time_2_wait;
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uint16_t time_2_retain;
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uint32_t res5;
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};
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struct iscsi_bhs_nop_in {
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uint8_t opcode : 6; /* opcode = 0x20 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t res[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t ttt;
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uint32_t stat_sn;
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uint32_t exp_cmd_sn;
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uint32_t max_cmd_sn;
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uint8_t res3[12];
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};
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struct iscsi_bhs_nop_out {
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uint8_t opcode : 6; /* opcode = 0x00 */
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uint8_t immediate : 1;
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uint8_t reserved : 1;
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uint8_t flags;
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uint8_t res[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t ttt;
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uint32_t cmd_sn;
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uint32_t exp_stat_sn;
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uint8_t res4[16];
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};
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struct iscsi_bhs_r2t {
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uint8_t opcode : 6; /* opcode = 0x31 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t rsv[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t ttt;
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uint32_t stat_sn;
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uint32_t exp_cmd_sn;
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uint32_t max_cmd_sn;
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uint32_t r2t_sn;
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uint32_t buffer_offset;
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uint32_t desired_xfer_len;
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};
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struct iscsi_bhs_reject {
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uint8_t opcode : 6; /* opcode = 0x3f */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t reason;
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uint8_t res;
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint8_t res2[8];
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uint32_t ffffffff;
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uint32_t res3;
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uint32_t stat_sn;
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uint32_t exp_cmd_sn;
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uint32_t max_cmd_sn;
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uint32_t data_sn;
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uint8_t res4[8];
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};
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struct iscsi_bhs_scsi_req {
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uint8_t opcode : 6; /* opcode = 0x01 */
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uint8_t immediate : 1;
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uint8_t reserved : 1;
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uint8_t attribute : 3;
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uint8_t reserved2 : 2;
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uint8_t write_bit : 1;
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uint8_t read_bit : 1;
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uint8_t final_bit : 1;
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uint8_t res[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t expected_data_xfer_len;
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uint32_t cmd_sn;
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uint32_t exp_stat_sn;
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uint8_t cdb[16];
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};
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struct iscsi_bhs_scsi_resp {
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uint8_t opcode : 6; /* opcode = 0x21 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t response;
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uint8_t status;
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint8_t res4[8];
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uint32_t itt;
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uint32_t snacktag;
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uint32_t stat_sn;
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uint32_t exp_cmd_sn;
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uint32_t max_cmd_sn;
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uint32_t exp_data_sn;
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uint32_t bi_read_res_cnt;
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uint32_t res_cnt;
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};
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struct iscsi_bhs_data_in {
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uint8_t opcode : 6; /* opcode = 0x05 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t res;
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uint8_t status;
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t ttt;
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uint32_t stat_sn;
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uint32_t exp_cmd_sn;
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uint32_t max_cmd_sn;
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uint32_t data_sn;
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uint32_t buffer_offset;
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uint32_t res_cnt;
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};
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struct iscsi_bhs_data_out {
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uint8_t opcode : 6; /* opcode = 0x25 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t res[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t ttt;
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uint32_t res3;
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uint32_t exp_stat_sn;
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uint32_t res4;
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uint32_t data_sn;
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uint32_t buffer_offset;
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uint32_t res5;
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};
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struct iscsi_bhs_snack_req {
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uint8_t opcode : 6; /* opcode = 0x10 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t res[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t ttt;
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uint32_t res5;
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uint32_t exp_stat_sn;
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uint8_t res6[8];
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uint32_t beg_run;
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uint32_t run_len;
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};
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struct iscsi_bhs_task_req {
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uint8_t opcode : 6; /* opcode = 0x02 */
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uint8_t immediate : 1;
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uint8_t reserved : 1;
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uint8_t flags;
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uint8_t res[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t ref_task_tag;
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uint32_t cmd_sn;
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uint32_t exp_stat_sn;
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uint32_t ref_cmd_sn;
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uint32_t exp_data_sn;
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uint8_t res5[8];
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};
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struct iscsi_bhs_task_resp {
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uint8_t opcode : 6; /* opcode = 0x22 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t response;
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uint8_t res;
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint8_t res2[8];
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uint32_t itt;
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uint32_t res3;
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uint32_t stat_sn;
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uint32_t exp_cmd_sn;
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uint32_t max_cmd_sn;
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uint8_t res4[12];
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};
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struct iscsi_bhs_text_req {
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uint8_t opcode : 6; /* opcode = 0x04 */
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uint8_t immediate : 1;
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uint8_t reserved : 1;
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uint8_t flags;
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uint8_t res[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t ttt;
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uint32_t cmd_sn;
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uint32_t exp_stat_sn;
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uint8_t res3[16];
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};
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struct iscsi_bhs_text_resp {
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uint8_t opcode : 6; /* opcode = 0x24 */
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uint8_t reserved : 2;
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uint8_t flags;
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uint8_t res[2];
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uint8_t total_ahs_len;
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uint8_t data_segment_len[3];
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uint64_t lun;
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uint32_t itt;
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uint32_t ttt;
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uint32_t stat_sn;
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uint32_t exp_cmd_sn;
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uint32_t max_cmd_sn;
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uint8_t res4[12];
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};
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/* generic flags */
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#define ISCSI_FLAG_FINAL 0x80
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/* login flags */
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#define ISCSI_LOGIN_TRANSIT 0x80
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#define ISCSI_LOGIN_CONTINUE 0x40
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#define ISCSI_LOGIN_CURRENT_STAGE_MASK 0x0c
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#define ISCSI_LOGIN_CURRENT_STAGE_0 0x04
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#define ISCSI_LOGIN_CURRENT_STAGE_1 0x08
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#define ISCSI_LOGIN_CURRENT_STAGE_3 0x0c
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#define ISCSI_LOGIN_NEXT_STAGE_MASK 0x03
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#define ISCSI_LOGIN_NEXT_STAGE_0 0x01
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#define ISCSI_LOGIN_NEXT_STAGE_1 0x02
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#define ISCSI_LOGIN_NEXT_STAGE_3 0x03
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/* text flags */
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#define ISCSI_TEXT_CONTINUE 0x40
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/* logout flags */
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#define ISCSI_LOGOUT_REASON_MASK 0x7f
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/* datain flags */
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#define ISCSI_DATAIN_ACKNOLWEDGE 0x40
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#define ISCSI_DATAIN_OVERFLOW 0x04
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#define ISCSI_DATAIN_UNDERFLOW 0x02
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#define ISCSI_DATAIN_STATUS 0x01
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/* SCSI resp flags */
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#define ISCSI_SCSI_BIDI_OVERFLOW 0x10
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#define ISCSI_SCSI_BIDI_UNDERFLOW 0x08
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#define ISCSI_SCSI_OVERFLOW 0x04
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#define ISCSI_SCSI_UNDERFLOW 0x02
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/* SCSI task flags */
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#define ISCSI_TASK_FUNCTION_MASK 0x7f
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/* Reason for Reject */
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#define ISCSI_REASON_RESERVED 0x1
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#define ISCSI_REASON_DATA_DIGEST_ERROR 0x2
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#define ISCSI_REASON_DATA_SNACK_REJECT 0x3
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#define ISCSI_REASON_PROTOCOL_ERROR 0x4
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#define ISCSI_REASON_CMD_NOT_SUPPORTED 0x5
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#define ISCSI_REASON_IMM_CMD_REJECT 0x6
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#define ISCSI_REASON_TASK_IN_PROGRESS 0x7
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#define ISCSI_REASON_INVALID_SNACK 0x8
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#define ISCSI_REASON_INVALID_PDU_FIELD 0x9
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#define ISCSI_REASON_LONG_OPERATION_REJECT 0xa
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#define ISCSI_REASON_NEGOTIATION_RESET 0xb
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#define ISCSI_REASON_WAIT_FOR_RESET 0xc
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#define ISCSI_FLAG_SNACK_TYPE_DATA 0
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#define ISCSI_FLAG_SNACK_TYPE_R2T 0
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#define ISCSI_FLAG_SNACK_TYPE_STATUS 1
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#define ISCSI_FLAG_SNACK_TYPE_DATA_ACK 2
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#define ISCSI_FLAG_SNACK_TYPE_RDATA 3
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#define ISCSI_FLAG_SNACK_TYPE_MASK 0x0F /* 4 bits */
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struct iscsi_ahs {
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/* 0-3 */
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uint8_t ahs_len[2];
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uint8_t ahs_type;
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uint8_t ahs_specific1;
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/* 4-x */
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uint8_t ahs_specific2[];
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};
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#define ISCSI_BHS_LOGIN_GET_TBIT(X) (!!(X & ISCSI_LOGIN_TRANSIT))
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#define ISCSI_BHS_LOGIN_GET_CBIT(X) (!!(X & ISCSI_LOGIN_CONTINUE))
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#define ISCSI_BHS_LOGIN_GET_CSG(X) ((X & ISCSI_LOGIN_CURRENT_STAGE_MASK) >> 2)
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#define ISCSI_BHS_LOGIN_GET_NSG(X) (X & ISCSI_LOGIN_NEXT_STAGE_MASK)
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#define ISCSI_CLASS_SUCCESS 0x00
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#define ISCSI_CLASS_REDIRECT 0x01
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#define ISCSI_CLASS_INITIATOR_ERROR 0x02
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#define ISCSI_CLASS_TARGET_ERROR 0x03
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/* Class (Success) detailed info: 0 */
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#define ISCSI_LOGIN_ACCEPT 0x00
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/* Class (Redirection) detailed info: 1 */
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#define ISCSI_LOGIN_TARGET_TEMPORARILY_MOVED 0x01
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#define ISCSI_LOGIN_TARGET_PERMANENTLY_MOVED 0x02
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/* Class (Initiator Error) detailed info: 2 */
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#define ISCSI_LOGIN_INITIATOR_ERROR 0x00
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#define ISCSI_LOGIN_AUTHENT_FAIL 0x01
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#define ISCSI_LOGIN_AUTHORIZATION_FAIL 0x02
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#define ISCSI_LOGIN_TARGET_NOT_FOUND 0x03
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#define ISCSI_LOGIN_TARGET_REMOVED 0x04
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#define ISCSI_LOGIN_UNSUPPORTED_VERSION 0x05
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#define ISCSI_LOGIN_TOO_MANY_CONNECTIONS 0x06
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#define ISCSI_LOGIN_MISSING_PARMS 0x07
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#define ISCSI_LOGIN_CONN_ADD_FAIL 0x08
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#define ISCSI_LOGIN_NOT_SUPPORTED_SESSION_TYPE 0x09
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#define ISCSI_LOGIN_NO_SESSION 0x0a
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#define ISCSI_LOGIN_INVALID_LOGIN_REQUEST 0x0b
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/* Class (Target Error) detailed info: 3 */
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#define ISCSI_LOGIN_STATUS_TARGET_ERROR 0x00
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#define ISCSI_LOGIN_STATUS_SERVICE_UNAVAILABLE 0x01
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#define ISCSI_LOGIN_STATUS_NO_RESOURCES 0x02
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#endif /* SPDK_ISCSI_SPEC_H */
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