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/* packet-fc.h
* Basic Fibre Channel Header definitions
* Copyright 2002 Dinesh G Dutt (ddutt@cisco.com)
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __PACKET_FC_H_
#define __PACKET_FC_H_
#include <epan/conversation.h>
#include <epan/etypes.h>
#include "ws_symbol_export.h"
/* R_CTL upper bits creates a classification tree */
#define FC_RCTL_DEV_DATA 0x00
#define FC_RCTL_ELS 0x20
#define FC_RCTL_LINK_DATA 0x30
#define FC_RCTL_VIDEO 0x40
#define FC_RCTL_BLS 0x80
#define FC_RCTL_LINK_CTL 0xC0
/* XXX - is 0xF0 Extended Routing? It is in the FC-FS draft on the T11
Web site. */
#define FC_TYPE_CMNSVC 0x0 /* Used in PRLI Svc Param Page */
/* TYPE definitions for Basic or Extended Link_Data */
#define FC_TYPE_BLS 0x0
#define FC_TYPE_ELS 0x1
/* TYPE definitions for FC-4 */
#define FC_TYPE_LLCSNAP 0x4
#define FC_TYPE_IP 0x5
#define FC_TYPE_SCSI 0x8
#define FC_TYPE_SB_TO_CU 0x1B
#define FC_TYPE_SB_FROM_CU 0x1C
#define FC_TYPE_FCCT 0x20
#define FC_TYPE_SWILS 0x22
#define FC_TYPE_AL 0x23
#define FC_TYPE_SNMP 0x24
#define FC_TYPE_VENDOR 0xFF
/*
* the following allows TAP code access to the messages
* without having to duplicate it. With MSVC and a
* libwireshark.dll, we need a special declaration.
*/
WS_DLL_PUBLIC const value_string fc_fc4_val[];
/* DF_CTL bits */
#define FC_DFCTL_DH 0x03 /* Device_Header type bits: */
#define FC_DFCTL_DH_NONE 0x00 /* No Device_Header */
#define FC_DFCTL_DH_16_BYTE 0x01 /* 16 Byte Device_Header */
#define FC_DFCTL_DH_32_BYTE 0x02 /* 32 Byte Device_Header */
#define FC_DFCTL_DH_64_BYTE 0x03 /* 64 Byte Device_Header */
#define FC_DFCTL_AH 0x10 /* Association_Header bit */
#define FC_DFCTL_NH 0x20 /* Association_Header bit */
#define FC_DFCTL_SH 0x40 /* reserved for security header */
/* Derived Frame types (used for ULP demux) */
#define FC_FTYPE_UNDEF 0x0
#define FC_FTYPE_SWILS 0x1
#define FC_FTYPE_IP 0x2
#define FC_FTYPE_SCSI 0x3
#define FC_FTYPE_BLS 0x4
#define FC_FTYPE_ELS 0x5
#define FC_FTYPE_FCCT 0x7
#define FC_FTYPE_LINKDATA 0x8
#define FC_FTYPE_VDO 0x9
#define FC_FTYPE_LINKCTL 0xA
#define FC_FTYPE_SWILS_RSP 0xB
#define FC_FTYPE_SBCCS 0xC
#define FC_FTYPE_OHMS 0xD
/* Well-known Address Definitions (in Network order) */
#define FC_WKA_MULTICAST 0xFFFFF5
#define FC_WKA_CLKSYNC 0xFFFFF6
#define FC_WKA_KEYDIST 0xFFFFF7
#define FC_WKA_ALIAS 0xFFFFF8
#define FC_WKA_QOSF 0xFFFFF9
#define FC_WKA_MGMT 0xFFFFFA
#define FC_WKA_TIME 0xFFFFFB
#define FC_WKA_DNS 0xFFFFFC
#define FC_WKA_FABRIC_CTRLR 0xFFFFFD
#define FC_WKA_FPORT 0xFFFFFE
#define FC_WKA_BCAST 0xFFFFFF
/* Well-known Address Definitions (in little endian) */
/* Information Categories for Link Data & Link Control Frames */
#define FC_IU_UNCATEGORIZED 0x0
#define FC_IU_SOLICITED_DATA 0x1
#define FC_IU_UNSOLICITED_CTL 0x2
#define FC_IU_SOLICITED_CTL 0x3
#define FC_IU_UNSOLICITED_DATA 0x4
#define FC_IU_DATA_DESCRIPTOR 0x5
#define FC_IU_UNSOLICITED_CMD 0x6
#define FC_IU_CMD_STATUS 0x7
/* FC_CTL bits */
#define FC_FCTL_EXCHANGE_RESPONDER 0x800000
#define FC_FCTL_SEQ_RECIPIENT 0x400000
#define FC_FCTL_EXCHANGE_FIRST 0x200000
#define FC_FCTL_EXCHANGE_LAST 0x100000
#define FC_FCTL_SEQ_LAST 0x080000
#define FC_FCTL_PRIORITY 0x020000
#define FC_FCTL_TRANSFER_SEQ_INITIATIVE 0x010000
#define FC_FCTL_LAST_DATA_FRAME_MASK 0x00c000
#define FC_FCTL_ACK_0_1_MASK 0x003000
#define FC_FCTL_REXMITTED_SEQ 0x000200
#define FC_FCTL_ABTS_MASK 0x000030
#define FC_FCTL_REL_OFFSET 0x000008
typedef struct _fc_exchange_t {
uint32_t first_exchange_frame;
uint32_t last_exchange_frame;
nstime_t fc_time;
} fc_exchange_t;
/* FC header structure */
typedef struct _fc_hdr {
address s_id;
address d_id;
uint32_t fctl;
uint8_t type;
uint16_t seqcnt;
uint16_t oxid;
uint16_t rxid;
uint8_t r_ctl;
uint8_t cs_ctl;
uint16_t lun;
fc_exchange_t* fc_ex;
uint32_t relative_offset;
} fc_hdr;
#define FC_DATA_SOF_FIRST_FRAME 0x1
#define FC_DATA_SOF_SOFF 0x2
#define FC_DATA_EOF_LAST_FRAME 0x80
#define FC_DATA_EOF_INVALID 0x40
/* Data structure to pass into FC dissector */
typedef struct _fc_data {
unsigned ethertype;
uint8_t sof_eof; /**< FC's SOF/EOF encoding passed to FC decoder
* Bit 7 set if Last frame in sequence
* Bit 6 set if invalid frame content
* Bit 2 set if SOFf
* Bit 1 set if first frame in sequence
*/
} fc_data_t;
#endif /* __PACKET_FC_H_ */
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