190 lines
6.2 KiB
C
190 lines
6.2 KiB
C
/* packet-fc.h
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* Basic Fibre Channel Header definitions
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* Copyright 2002 Dinesh G Dutt (ddutt@cisco.com)
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __PACKET_FC_H_
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#define __PACKET_FC_H_
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/* R_CTL upper bits creates a classification tree */
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#define FC_RCTL_DEV_DATA 0x00
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#define FC_RCTL_ELS 0x20
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#define FC_RCTL_LINK_DATA 0x30
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#define FC_RCTL_VIDEO 0x40
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#define FC_RCTL_BLS 0x80
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#define FC_RCTL_LINK_CTL 0xC0
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/* XXX - is 0xF0 Extended Routing? It is in the FC-FS draft on the T11
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Web site. */
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#define FC_TYPE_CMNSVC 0x0 /* Used in PRLI Svc Param Page */
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/* TYPE definitions for Basic or Extended Link_Data */
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#define FC_TYPE_ELS 0x1
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/* TYPE definitions for FC-4 */
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#define FC_TYPE_LLCSNAP 0x4
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#define FC_TYPE_IP 0x5
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#define FC_TYPE_SCSI 0x8
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#define FC_TYPE_SB_TO_CU 0x1B
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#define FC_TYPE_SB_FROM_CU 0x1C
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#define FC_TYPE_FCCT 0x20
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#define FC_TYPE_SWILS 0x22
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#define FC_TYPE_AL 0x23
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#define FC_TYPE_SNMP 0x24
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#define FC_TYPE_VENDOR 0xFF
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/*
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* the following allows TAP code access to the messages
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* without having to duplicate it. With MSVC and a
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* libwireshark.dll, we need a special declaration.
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*/
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WS_VAR_IMPORT const value_string fc_fc4_val[];
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/* DF_CTL bits */
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#define FC_DFCTL_DH 0x03 /* Device_Header type bits: */
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#define FC_DFCTL_DH_NONE 0x00 /* No Device_Header */
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#define FC_DFCTL_DH_16_BYTE 0x01 /* 16 Byte Device_Header */
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#define FC_DFCTL_DH_32_BYTE 0x02 /* 32 Byte Device_Header */
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#define FC_DFCTL_DH_64_BYTE 0x03 /* 64 Byte Device_Header */
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#define FC_DFCTL_AH 0x10 /* Association_Header bit */
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#define FC_DFCTL_NH 0x20 /* Association_Header bit */
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#define FC_DFCTL_SH 0x40 /* reserved for security header */
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/* Derived Frame types (used for ULP demux) */
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#define FC_FTYPE_UNDEF 0x0
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#define FC_FTYPE_SWILS 0x1
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#define FC_FTYPE_IP 0x2
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#define FC_FTYPE_SCSI 0x3
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#define FC_FTYPE_BLS 0x4
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#define FC_FTYPE_ELS 0x5
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#define FC_FTYPE_FCCT 0x7
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#define FC_FTYPE_LINKDATA 0x8
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#define FC_FTYPE_VDO 0x9
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#define FC_FTYPE_LINKCTL 0xA
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#define FC_FTYPE_SWILS_RSP 0xB
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#define FC_FTYPE_SBCCS 0xC
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#define FC_FTYPE_OHMS 0xD
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/* Well-known Address Definitions (in Network order) */
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#define FC_WKA_MULTICAST 0xFFFFF5
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#define FC_WKA_CLKSYNC 0xFFFFF6
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#define FC_WKA_KEYDIST 0xFFFFF7
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#define FC_WKA_ALIAS 0xFFFFF8
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#define FC_WKA_QOSF 0xFFFFF9
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#define FC_WKA_MGMT 0xFFFFFA
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#define FC_WKA_TIME 0xFFFFFB
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#define FC_WKA_DNS 0xFFFFFC
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#define FC_WKA_FABRIC_CTRLR 0xFFFFFD
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#define FC_WKA_FPORT 0xFFFFFE
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#define FC_WKA_BCAST 0xFFFFFF
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/* Well-known Address Definitions (in little endian) */
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/* Information Categories for Link Data & Link Control Frames */
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#define FC_IU_UNCATEGORIZED 0x0
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#define FC_IU_SOLICITED_DATA 0x1
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#define FC_IU_UNSOLICITED_CTL 0x2
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#define FC_IU_SOLICITED_CTL 0x3
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#define FC_IU_UNSOLICITED_DATA 0x4
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#define FC_IU_DATA_DESCRIPTOR 0x5
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#define FC_IU_UNSOLICITED_CMD 0x6
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#define FC_IU_CMD_STATUS 0x7
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/* FC_CTL bits */
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#define FC_FCTL_EXCHANGE_RESPONDER 0x800000
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#define FC_FCTL_SEQ_RECIPIENT 0x400000
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#define FC_FCTL_EXCHANGE_FIRST 0x200000
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#define FC_FCTL_EXCHANGE_LAST 0x100000
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#define FC_FCTL_SEQ_LAST 0x080000
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#define FC_FCTL_PRIORITY 0x020000
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#define FC_FCTL_TRANSFER_SEQ_INITIATIVE 0x010000
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#define FC_FCTL_LAST_DATA_FRAME_MASK 0x00c000
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#define FC_FCTL_ACK_0_1_MASK 0x003000
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#define FC_FCTL_REXMITTED_SEQ 0x000200
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#define FC_FCTL_ABTS_MASK 0x000030
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#define FC_FCTL_REL_OFFSET 0x000008
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/* Structure containing itl nexus data :
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* The itlq nexus is a structure containing data specific
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* for a initiator target lun combination.
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*/
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typedef struct _itl_nexus_t {
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#define SCSI_CMDSET_DEFAULT 0x80
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#define SCSI_CMDSET_MASK 0x7f
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guint8 cmdset; /* This is a bitfield.
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* The MSB (0x80) represents whether
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* 0: the commandset is known from a INQ PDU
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* 1: is using the "default" from preferences.
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* The lower 7 bits represent the commandset used
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* for decoding commands on this itl nexus.
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* The field is initialized to 0xff == unknown.
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*/
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} itl_nexus_t;
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/* Structure containing itlq nexus data :
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* The itlq nexus is a structure containing data specific
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* for a initiator target lun queue/commandid combination.
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*/
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typedef struct _itlq_nexus_t {
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guint32 first_exchange_frame;
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guint32 last_exchange_frame;
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guint16 lun; /* initialized to 0xffff == unknown */
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guint16 scsi_opcode; /* initialized to 0xffff == unknown */
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guint16 flags;
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guint32 alloc_len; /* we need to track alloc_len between the CDB and
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* the DATA pdus for some opcodes.
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*/
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nstime_t fc_time;
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} itlq_nexus_t;
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#define SCSI_PDU_TYPE_CDB 1
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#define SCSI_PDU_TYPE_DATA 2
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#define SCSI_PDU_TYPE_RSP 4
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#define SCSI_PDU_TYPE_SNS 5
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typedef struct _scsi_task_data {
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int type;
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itlq_nexus_t *itlq;
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itl_nexus_t *itl;
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} scsi_task_data_t;
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/* FC header structure */
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typedef struct _fc_hdr {
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address s_id;
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address d_id;
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guint32 fctl;
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guint8 type;
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guint16 seqcnt;
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guint16 oxid;
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guint16 rxid;
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guint8 r_ctl;
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guint8 cs_ctl;
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itlq_nexus_t *itlq;
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conversation_t *conversation;
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} fc_hdr;
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#endif /* __PACKET_FC_H_ */
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