Ethereal-dev: [Ethereal-dev] iSCSI Dissector Available
Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.
From: Mark Burton <markb@xxxxxxxxxx>
Date: Wed, 30 May 2001 18:43:32 +0100
Hi folks, Sorry for the largish size of this posting. I inclose the source for an iSCSI (SCSI over TCP) protocol dissector. It currently conforms to draft-ietf-ips-iscsi-06.txt and (using a preference option) can conform to draft-ietf-ips-iscsi-03.txt. This protocol is still very much in a state of flux so the dissector will need to change everytime a new draft of the standard comes out. I intend to track the changes and will post updates. It's very new code and I am not an Ethereal vetran so the bug density is sure to be high! The canonical disclaimers apply. Please send me any contributions or bug fixes etc. Regards, Mark
/* packet-iscsi.c
* Routines for iSCSI dissection
* Copyright 2001, Eurologic and Mark Burton <markb@xxxxxxxxxx>
*
* Conforms to the protocol described in: draft-ietf-ips-iscsi-06.txt
* Optionally, supports the protocol described in: draft-ietf-ips-iscsi-03.txt
*
* $Id: $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@xxxxxxxxxxxx>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#include <glib.h>
#ifdef NEED_SNPRINTF_H
# include "snprintf.h"
#endif
#include "packet.h"
#include "prefs.h"
static int enable_03_mode = TRUE;
static int enable_bogosity_filter = TRUE;
static int bogus_pdu_data_length_threshold = 1024 * 1024;
static int bogus_pdu_max_digest_padding = 20;
/* Initialize the protocol and registered fields */
static int proto_iscsi = -1;
static int hf_iscsi_Payload = -1;
static int hf_iscsi_Opcode = -1;
static int hf_iscsi_Opcode_03 = -1;
#if 0
static int hf_iscsi_X = -1;
static int hf_iscsi_I = -1;
#endif
static int hf_iscsi_SCSICommand_X03 = -1;
static int hf_iscsi_SCSICommand_F = -1;
static int hf_iscsi_SCSICommand_R = -1;
static int hf_iscsi_SCSICommand_W = -1;
static int hf_iscsi_SCSICommand_Attr = -1;
static int hf_iscsi_SCSICommand_CRN = -1;
static int hf_iscsi_SCSICommand_AddCDB = -1;
static int hf_iscsi_Length03 = -1;
static int hf_iscsi_DataSegmentLength = -1;
static int hf_iscsi_TotalAHSLength = -1;
static int hf_iscsi_LUN = -1;
static int hf_iscsi_InitiatorTaskTag = -1;
static int hf_iscsi_ExpectedDataTransferLength = -1;
static int hf_iscsi_CmdSN = -1;
static int hf_iscsi_ExpStatSN = -1;
static int hf_iscsi_SCSICommand_CDB = -1;
static int hf_iscsi_SCSICommand_CDB0 = -1;
static int hf_iscsi_StatSN = -1;
static int hf_iscsi_ExpCmdSN = -1;
static int hf_iscsi_MaxCmdSN = -1;
static int hf_iscsi_SCSIResponse_o03 = -1;
static int hf_iscsi_SCSIResponse_u03 = -1;
static int hf_iscsi_SCSIResponse_O03 = -1;
static int hf_iscsi_SCSIResponse_U03 = -1;
static int hf_iscsi_SCSIResponse_o = -1;
static int hf_iscsi_SCSIResponse_u = -1;
static int hf_iscsi_SCSIResponse_O = -1;
static int hf_iscsi_SCSIResponse_U = -1;
static int hf_iscsi_SCSIResponse_S = -1;
static int hf_iscsi_CommandStatus03 = -1;
static int hf_iscsi_StatusResponse_is_status = -1;
static int hf_iscsi_StatusResponse_is_response = -1;
static int hf_iscsi_SCSIResponse_SenseLength = -1;
static int hf_iscsi_SCSIResponse_BidiReadResidualCount = -1;
static int hf_iscsi_SCSIResponse_BasicResidualCount = -1;
static int hf_iscsi_SCSIData_F = -1;
static int hf_iscsi_SCSIData_P03 = -1;
static int hf_iscsi_SCSIData_S03 = -1;
static int hf_iscsi_SCSIData_O03 = -1;
static int hf_iscsi_SCSIData_U03 = -1;
static int hf_iscsi_SCSIData_S = -1;
static int hf_iscsi_SCSIData_O = -1;
static int hf_iscsi_SCSIData_U = -1;
static int hf_iscsi_TargetTransferTag = -1;
static int hf_iscsi_DataSN = -1;
static int hf_iscsi_BufferOffset = -1;
static int hf_iscsi_SCSIData_ResidualCount = -1;
static int hf_iscsi_VersionMin = -1;
static int hf_iscsi_VersionMax = -1;
static int hf_iscsi_CID = -1;
static int hf_iscsi_ISID = -1;
static int hf_iscsi_TSID = -1;
static int hf_iscsi_InitStatSN = -1;
static int hf_iscsi_InitCmdSN = -1;
static int hf_iscsi_Login_F = -1;
static int hf_iscsi_Login_Status03 = -1;
static int hf_iscsi_Login_Status = -1;
static int hf_iscsi_KeyValue = -1;
static int hf_iscsi_Text_F = -1;
static int hf_iscsi_NOP_P = -1;
static int hf_iscsi_ExpDataSN = -1;
static int hf_iscsi_R2TExpDataSN = -1;
static int hf_iscsi_SCSITask_ReferencedTaskTag = -1;
static int hf_iscsi_SCSITask_Function = -1;
static int hf_iscsi_SCSITask_Response = -1;
static int hf_iscsi_Logout_Reason03 = -1;
static int hf_iscsi_Logout_Reason = -1;
static int hf_iscsi_Logout_Response = -1;
static int hf_iscsi_DesiredDataLength = -1;
static int hf_iscsi_SCSIEvent = -1;
static int hf_iscsi_iSCSIEvent = -1;
static int hf_iscsi_SCSIEvent03 = -1;
static int hf_iscsi_iSCSIEvent03 = -1;
static int hf_iscsi_Parameter1 = -1;
static int hf_iscsi_Parameter2 = -1;
static int hf_iscsi_Reject_Reason = -1;
static int hf_iscsi_Reject_FirstBadByte = -1;
static int hf_iscsi_Reject_Reason03 = -1;
static int hf_iscsi_SNACK_S = -1;
static int hf_iscsi_AddRuns = -1;
static int hf_iscsi_BegRun = -1;
static int hf_iscsi_RunLength = -1;
static int hf_iscsi_AdditionalRuns = -1;
/* Initialize the subtree pointers */
static gint ett_iscsi_KeyValues = -1;
static gint ett_iscsi_CDB = -1;
static const value_string iscsi_opcodes[] = {
{0x00, "NOP Out"},
{0x40, "NOP Out (Immediate)"},
{0x80, "NOP Out (Retry)"},
{0x01, "SCSI Command"},
{0x41, "SCSI Command (Immediate)"},
{0x81, "SCSI Command (Retry)"},
{0x02, "SCSI Task Management Command"},
{0x42, "SCSI Task Management Command (Immediate)"},
{0x82, "SCSI Task Management Command (Retry)"},
{0x03, "Login Command"},
{0x83, "Login Command (Retry)"},
{0x04, "Text Command"},
{0x44, "Text Command (Immediate)"},
{0x84, "Text Command (Retry)"},
{0x05, "SCSI Write Data"},
{0x06, "Logout Command"},
{0x46, "Logout Command (Immediate)"},
{0x10, "SNACK Request (Missing Immediate bit)"},
{0x50, "SNACK Request"},
{0xc0, "NOP In"},
{0xc1, "SCSI Command Response"},
{0xc2, "SCSI Task Management Response"},
{0xc3, "Login Response"},
{0xc4, "Text Response"},
{0xc5, "SCSI Read Data"},
{0xc6, "Logout Response"},
{0xd0, "Ready To Transfer"},
{0xd1, "Asynchronous Message"},
{0xef, "Reject"},
{0, NULL},
};
static const value_string iscsi_opcodes_03[] = {
{0x00, "NOP Out"},
{0x01, "SCSI Command"},
{0x02, "SCSI Task Management Command"},
{0x03, "Login Command"},
{0x04, "Text Command"},
{0x05, "SCSI Write Data"},
{0x06, "Logout Command"},
{0x80, "NOP In"},
{0x81, "SCSI Command Response"},
{0x82, "SCSI Task Management Response"},
{0x83, "Login Response"},
{0x84, "Text Response"},
{0x85, "SCSI Read Data"},
{0x86, "Logout Response"},
{0x90, "Ready To Transfer"},
{0x91, "Asynchronous Event"},
{0xef, "Reject"},
{0, NULL},
};
static const true_false_string iscsi_meaning_X = {
"Retry",
"Not retry"
};
static const true_false_string iscsi_meaning_I = {
"Immediate delivery",
"Queued delivery"
};
static const true_false_string iscsi_meaning_F = {
"Final PDU in sequence",
"Not final PDU in sequence"
};
static const true_false_string iscsi_meaning_P = {
"Poll requested",
"No poll requested"
};
static const true_false_string iscsi_meaning_S = {
"Response contains SCSI status",
"Response does not contain SCSI status"
};
static const true_false_string iscsi_meaning_R = {
"Data will be read from target",
"No data will be read from target"
};
static const true_false_string iscsi_meaning_W = {
"Data will be written to target",
"No data will be written to target"
};
static const true_false_string iscsi_meaning_o = {
"Read part of bi-directional command overflowed",
"No overflow of read part of bi-directional command",
};
static const true_false_string iscsi_meaning_u = {
"Read part of bi-directional command underflowed",
"No underflow of read part of bi-directional command",
};
static const true_false_string iscsi_meaning_O = {
"Residual overflow occurred",
"No residual overflow occurred",
};
static const true_false_string iscsi_meaning_U = {
"Residual underflow occurred",
"No residual underflow occurred",
};
static const true_false_string iscsi_meaning_scsiresponse_S = {
"Status/Response field contains SCSI status",
"Status/Response field contains iSCSI response",
};
static const true_false_string iscsi_meaning_SNACK_S = {
"Status SNACK",
"Data SNACK",
};
static const value_string iscsi_scsicommand_taskattrs[] = {
{0, "Untagged"},
{1, "Simple"},
{2, "Ordered"},
{3, "Head of Queue"},
{4, "ACA"},
{0, NULL},
};
static const value_string iscsi_scsi_cdb0[] = {
{0x00, "TEST_UNIT_READY"},
{0x01, "REZERO_UNIT"},
{0x03, "REQUEST_SENSE"},
{0x04, "FORMAT_UNIT"},
{0x05, "READ_BLOCK_LIMITS"},
{0x07, "REASSIGN_BLOCKS"},
{0x08, "READ_6"},
{0x0a, "WRITE_6"},
{0x0b, "SEEK_6"},
{0x0f, "READ_REVERSE"},
{0x10, "WRITE_FILEMARKS"},
{0x11, "SPACE"},
{0x12, "INQUIRY"},
{0x14, "RECOVER_BUFFERED_DATA"},
{0x15, "MODE_SELECT"},
{0x16, "RESERVE"},
{0x17, "RELEASE"},
{0x18, "COPY"},
{0x19, "ERASE"},
{0x1a, "MODE_SENSE"},
{0x1b, "START_STOP"},
{0x1c, "RECEIVE_DIAGNOSTIC"},
{0x1d, "SEND_DIAGNOSTIC"},
{0x1e, "ALLOW_MEDIUM_REMOVAL"},
{0x24, "SET_WINDOW"},
{0x25, "READ_CAPACITY"},
{0x28, "READ_10"},
{0x2a, "WRITE_10"},
{0x2b, "SEEK_10"},
{0x2e, "WRITE_VERIFY"},
{0x2f, "VERIFY"},
{0x30, "SEARCH_HIGH"},
{0x31, "SEARCH_EQUAL"},
{0x32, "SEARCH_LOW"},
{0x33, "SET_LIMITS"},
{0x34, "PRE_FETCH"},
{0x34, "READ_POSITION"},
{0x35, "SYNCHRONIZE_CACHE"},
{0x36, "LOCK_UNLOCK_CACHE"},
{0x37, "READ_DEFECT_DATA"},
{0x38, "MEDIUM_SCAN"},
{0x39, "COMPARE"},
{0x3a, "COPY_VERIFY"},
{0x3b, "WRITE_BUFFER"},
{0x3c, "READ_BUFFER"},
{0x3d, "UPDATE_BLOCK"},
{0x3e, "READ_LONG"},
{0x3f, "WRITE_LONG"},
{0x40, "CHANGE_DEFINITION"},
{0x41, "WRITE_SAME"},
{0x43, "READ_TOC"},
{0x4c, "LOG_SELECT"},
{0x4d, "LOG_SENSE"},
{0x55, "MODE_SELECT_10"},
{0x5a, "MODE_SENSE_10"},
{0xa5, "MOVE_MEDIUM"},
{0xa8, "READ_12"},
{0xaa, "WRITE_12"},
{0xae, "WRITE_VERIFY_12"},
{0xb0, "SEARCH_HIGH_12"},
{0xb1, "SEARCH_EQUAL_12"},
{0xb2, "SEARCH_LOW_12"},
{0xb8, "READ_ELEMENT_STATUS"},
{0xb6, "SEND_VOLUME_TAG"},
{0xea, "WRITE_LONG_2"},
{0, NULL},
};
static const value_string iscsi_scsi_statuses[] = {
{0x00, "Good"},
{0x01, "Check condition"},
{0x02, "Condition good"},
{0x04, "Busy"},
{0x08, "Intermediate good"},
{0x0a, "Intermediate c good"},
{0x0c, "Reservation conflict"},
{0x11, "Command terminated"},
{0x14, "Queue full"},
{0, NULL},
};
static const value_string iscsi_scsi_responses[] = {
{0x01, "Target failure"},
{0x02, "Delivery subsystem failure"},
{0x03, "Unsolicited data rejected"},
{0x04, "SNACK rejected"},
{0, NULL},
};
static const value_string iscsi_task_responses[] = {
{0, "Function complete"},
{1, "Task not in task set"},
{2, "LUN does not exist"},
{255, "Function rejected"},
{0, NULL},
};
static const value_string iscsi_task_functions[] = {
{1, "Abort Task"},
{2, "Abort Task Set"},
{3, "Clear ACA"},
{4, "Clear Task Set"},
{5, "Logical Unit Reset"},
{6, "Target Warm Reset"},
{7, "Target Cold Reset"},
{0, NULL},
};
static const value_string iscsi_login_status03[] = {
{0, "Accept Login"},
{1, "Reject Login - unsupported version"},
{2, "Reject Login - failed authentication"},
{3, "Reject Login - incompatible parameters"},
{0, NULL},
};
static const value_string iscsi_login_status[] = {
{0x0000, "Success - Accept login"},
{0x0001, "Success - Athenticate"},
{0x0002, "Success - iSCSI target name required"},
{0x0101, "Redirection - Target moved temporarily"},
{0x0102, "Redirection - Target moved permanently"},
{0x0103, "Redirection - Proxy required"},
{0x0201, "Initiator error - Athentication failed"},
{0x0202, "Initiator error - Forbidden target"},
{0x0203, "Initiator error - Target not found"},
{0x0204, "Initiator error - Target removed"},
{0x0205, "Initiator error - Target conflict"},
{0x0206, "Initiator error - Initiator SID error"},
{0x0207, "Initiator error - Missing parameter"},
{0x0300, "Target error - Target error"},
{0x0301, "Target error - Service unavailable"},
{0x0302, "Target error - Unsupported version"},
{0, NULL},
};
static const value_string iscsi_logout_reasons03[] = {
{0, "Remove connection - session is closing"},
{1, "Remove connection - for recovery"},
{2, "Remove connection - at target's request"},
{0, NULL},
};
static const value_string iscsi_logout_reasons[] = {
{0, "Session is closing"},
{1, "Close connections"},
{2, "Remove connection for recovery"},
{3, "Remove connection at target's request"},
{0, NULL},
};
static const value_string iscsi_logout_response[] = {
{0, "Connection closed successfully"},
{1, "Cleanup failed"},
{0, NULL},
};
static const value_string iscsi_scsievents03[] = {
{1, "Error condition encountered after command completion"},
{2, "A newly initialised device is available to the initiator"},
{3, "All task sets are being reset by another initiator"},
{5, "Some other type of unit attention condition has occurred"},
{6, "An asynchronous event has occurred"},
{0, NULL},
};
static const value_string iscsi_iscsievents03[] = {
{1, "Target is being reset"},
{2, "Target requests logout"},
{3, "Target will drop connection"},
{0, NULL},
};
static const value_string iscsi_reject_reasons03[] = {
{1, "Format error"},
{2, "Header digest error"},
{3, "Payload digest error"},
{0, NULL},
};
static const value_string iscsi_reject_reasons[] = {
{1, "Format error"},
{2, "Header digest error"},
{3, "Payload digest error"},
{4, "Data SNACK reject"},
{5, "Command retry reject"},
{15, "Full feature phase command before login"},
{0, NULL},
};
static int min(int a, int b) {
return (a < b)? a : b;
}
static gint addTextKeys(proto_tree *tt, tvbuff_t *tvb, gint offset, guint32 text_len) {
const gint limit = offset + text_len;
while(offset < limit) {
const char *p = tvb_get_ptr(tvb, offset, 1);
int len = strlen(p) + 1;
if((offset + len) >= limit)
len = limit - offset;
proto_tree_add_string_format(tt, hf_iscsi_KeyValue, tvb, offset, len, p, "%s", p);
offset += len;
}
return offset;
}
static gint dissectCDB(proto_tree *tt, tvbuff_t *tvb, gint offset, gint cdbLen) {
guint8 cdb0 = tvb_get_guint8(tvb, offset);
switch(cdb0) {
case 0x08: /* READ_6 */
#if 0
proto_tree_add_uint(tt, hf_iscsi_SCSICommand_CDB0, tvb, offset, 1, cdb0);
#endif
default:
proto_tree_add_bytes(tt, hf_iscsi_SCSICommand_CDB, tvb, offset, cdbLen, tvb_get_ptr(tvb, offset, cdbLen));
}
return offset + cdbLen;
}
/* Code to actually dissect the packets */
static gboolean
dissect_iscsi(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
/* Set up structures needed to add the protocol subtree and manage it */
proto_item *ti;
gint offset = 0;
guint32 data_segment_len = 0;
guint8 opcode = tvb_get_guint8(tvb, offset + 0);
const char *opcode_str;
guint32 pdu_len = tvb_length_remaining(tvb, 0);
if(enable_03_mode) {
opcode_str = match_strval(opcode, iscsi_opcodes_03);
data_segment_len = tvb_get_ntohl(tvb, offset + 4);
}
else {
opcode_str = match_strval(opcode, iscsi_opcodes);
data_segment_len = tvb_get_ntohl(tvb, offset + 4) & 0x00ffffff;
}
/* try and distinguish between data and real headers */
if(opcode_str == NULL ||
(enable_bogosity_filter &&
(data_segment_len > bogus_pdu_data_length_threshold ||
pdu_len < 48 ||
pdu_len > (data_segment_len + 48 + bogus_pdu_max_digest_padding)))) {
return FALSE;
}
/* Make entries in Protocol column and Info column on summary display */
if (check_col(pinfo->fd, COL_PROTOCOL))
col_set_str(pinfo->fd, COL_PROTOCOL, "iSCSI");
if (check_col(pinfo->fd, COL_INFO)) {
const char *scsiCommandName = 0;
col_add_str(pinfo->fd, COL_INFO, (char *)opcode_str);
if((opcode & 0xbf) == 0x01 && pdu_len > 32)
scsiCommandName = match_strval(tvb_get_guint8(tvb, offset + 32),
iscsi_scsi_cdb0);
if(scsiCommandName != NULL)
col_append_fstr(pinfo->fd, COL_INFO, " (%s)", scsiCommandName);
}
/* In the interest of speed, if "tree" is NULL, don't do any
work not necessary to generate protocol tree items. */
if (tree) {
/* create display subtree for the protocol */
ti = proto_tree_add_item(tree, proto_iscsi, tvb, offset,
pdu_len, FALSE);
if((enable_03_mode && opcode == 0x00) ||
(!enable_03_mode && (opcode == 0x00 ||
opcode == 0x40 ||
opcode == 0x80))) {
/* NOP Out */
gint b = tvb_get_guint8(tvb, offset + 1);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
}
proto_tree_add_boolean(ti, hf_iscsi_NOP_P, tvb, offset + 1, 1, b);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_bytes(ti, hf_iscsi_LUN, tvb, offset + 8, 8, tvb_get_ptr(tvb, offset + 8, 8));
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_TargetTransferTag, tvb, offset + 20, 4, tvb_get_ntohl(tvb, offset + 20));
proto_tree_add_uint(ti, hf_iscsi_CmdSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpStatSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_ExpDataSN, tvb, offset + 32, 4, tvb_get_ntohl(tvb, offset + 32));
}
proto_tree_add_uint(ti, hf_iscsi_BufferOffset, tvb, offset + 40, 4, tvb_get_ntohl(tvb, offset + 40));
offset += 48;
}
else if((enable_03_mode && opcode == 0x80) ||
(!enable_03_mode && opcode == 0xc0)) {
/* NOP In */
gint b = tvb_get_guint8(tvb, offset + 1);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
}
proto_tree_add_boolean(ti, hf_iscsi_NOP_P, tvb, offset + 1, 1, b);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_TargetTransferTag, tvb, offset + 20, 4, tvb_get_ntohl(tvb, offset + 20));
proto_tree_add_uint(ti, hf_iscsi_StatSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpCmdSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
proto_tree_add_uint(ti, hf_iscsi_MaxCmdSN, tvb, offset + 32, 4, tvb_get_ntohl(tvb, offset + 32));
offset += 48;
}
else if((enable_03_mode && opcode == 0x01) ||
(!enable_03_mode && (opcode == 0x01 ||
opcode == 0x41 ||
opcode == 0x81))) {
/* SCSI Command */
gint b = tvb_get_guint8(tvb, offset + 1);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_boolean(ti, hf_iscsi_SCSICommand_X03, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSICommand_R, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSICommand_W, tvb, offset + 1, 1, b);
proto_tree_add_uint(ti, hf_iscsi_SCSICommand_Attr, tvb, offset + 1, 1, b);
proto_tree_add_uint(ti, hf_iscsi_SCSICommand_AddCDB, tvb, offset + 3, 1, tvb_get_guint8(tvb, offset + 3));
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
proto_tree_add_boolean(ti, hf_iscsi_SCSICommand_F, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSICommand_R, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSICommand_W, tvb, offset + 1, 1, b);
proto_tree_add_uint(ti, hf_iscsi_SCSICommand_Attr, tvb, offset + 1, 1, b);
proto_tree_add_uint(ti, hf_iscsi_SCSICommand_CRN, tvb, offset + 3, 1, tvb_get_guint8(tvb, offset + 3));
proto_tree_add_uint(ti, hf_iscsi_TotalAHSLength, tvb, offset + 4, 1, tvb_get_guint8(tvb, offset + 4));
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_bytes(ti, hf_iscsi_LUN, tvb, offset + 8, 8, tvb_get_ptr(tvb, offset + 8, 8));
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_ExpectedDataTransferLength, tvb, offset + 20, 4, tvb_get_ntohl(tvb, offset + 20));
proto_tree_add_uint(ti, hf_iscsi_CmdSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpStatSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
{
guint8 cdb0 = tvb_get_guint8(tvb, offset + 32);
proto_item *tf = proto_tree_add_uint(ti, hf_iscsi_SCSICommand_CDB0, tvb, offset + 32, 1, cdb0);
proto_tree *tt = proto_item_add_subtree(tf, ett_iscsi_CDB);
dissectCDB(tt, tvb, offset + 32, 16 + tvb_get_guint8(tvb, offset + 3) * 4);
}
offset += 48;
}
else if((enable_03_mode && opcode == 0x81) ||
(!enable_03_mode && opcode == 0xc1)) {
/* SCSI Response */
gint b = tvb_get_guint8(tvb, offset + 1);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_boolean(ti, hf_iscsi_SCSIResponse_o03, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIResponse_u03, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIResponse_O03, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIResponse_U03, tvb, offset + 1, 1, b);
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
proto_tree_add_boolean(ti, hf_iscsi_SCSIResponse_o, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIResponse_u, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIResponse_O, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIResponse_U, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIResponse_S, tvb, offset + 1, 1, b);
if(b & 0x01)
proto_tree_add_uint(ti, hf_iscsi_StatusResponse_is_status, tvb, offset + 3, 1, tvb_get_guint8(tvb, offset + 3));
else
proto_tree_add_uint(ti, hf_iscsi_StatusResponse_is_response, tvb, offset + 3, 1, tvb_get_guint8(tvb, offset + 3));
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_SCSIResponse_BasicResidualCount, tvb, offset + 20, 4, tvb_get_ntohl(tvb, offset + 20));
proto_tree_add_uint(ti, hf_iscsi_StatSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpCmdSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
proto_tree_add_uint(ti, hf_iscsi_MaxCmdSN, tvb, offset + 32, 4, tvb_get_ntohl(tvb, offset + 32));
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_CommandStatus03, tvb, offset + 36, 1, tvb_get_guint8(tvb, offset + 36));
proto_tree_add_uint(ti, hf_iscsi_SCSIResponse_SenseLength, tvb, offset + 40, 2, tvb_get_ntohs(tvb, offset + 40));
}
else {
proto_tree_add_uint(ti, hf_iscsi_ExpDataSN, tvb, offset + 36, 4, tvb_get_ntohl(tvb, offset + 36));
proto_tree_add_uint(ti, hf_iscsi_R2TExpDataSN, tvb, offset + 40, 4, tvb_get_ntohl(tvb, offset + 40));
}
proto_tree_add_uint(ti, hf_iscsi_SCSIResponse_BidiReadResidualCount, tvb, offset + 44, 4, tvb_get_ntohl(tvb, offset + 44));
offset += 48;
}
else if((enable_03_mode && opcode == 0x02) ||
(!enable_03_mode && (opcode == 0x02 ||
opcode == 0x42 ||
opcode == 0x82))) {
/* SCSI Task Command */
gint b = tvb_get_guint8(tvb, offset + 1);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
}
proto_tree_add_uint(ti, hf_iscsi_SCSITask_Function, tvb, offset + 1, 1, b);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
proto_tree_add_bytes(ti, hf_iscsi_LUN, tvb, offset + 8, 8, tvb_get_ptr(tvb, offset + 8, 8));
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_SCSITask_ReferencedTaskTag, tvb, offset + 20, 4, tvb_get_ntohl(tvb, offset + 20));
proto_tree_add_uint(ti, hf_iscsi_CmdSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpStatSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
offset += 48;
}
else if((enable_03_mode && opcode == 0x82) ||
(!enable_03_mode && opcode == 0xc2)) {
/* SCSI Task Response */
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
}
proto_tree_add_bytes(ti, hf_iscsi_LUN, tvb, offset + 8, 8, tvb_get_ptr(tvb, offset + 8, 8));
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_SCSITask_ReferencedTaskTag, tvb, offset + 20, 4, tvb_get_ntohl(tvb, offset + 20));
proto_tree_add_uint(ti, hf_iscsi_StatSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpCmdSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
proto_tree_add_uint(ti, hf_iscsi_MaxCmdSN, tvb, offset + 32, 4, tvb_get_ntohl(tvb, offset + 32));
proto_tree_add_uint(ti, hf_iscsi_SCSITask_Response, tvb, offset + 36, 1, tvb_get_guint8(tvb, offset + 36));
offset += 48;
}
else if((enable_03_mode && opcode == 0x03) ||
(!enable_03_mode && (opcode == 0x03 ||
opcode == 0x83))) {
/* Login Command */
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
proto_tree_add_boolean(ti, hf_iscsi_Login_F, tvb, offset + 1, 1, tvb_get_guint8(tvb, offset + 1));
}
proto_tree_add_uint(ti, hf_iscsi_VersionMax, tvb, offset + 2, 1, tvb_get_guint8(tvb, offset + 2));
proto_tree_add_uint(ti, hf_iscsi_VersionMin, tvb, offset + 3, 1, tvb_get_guint8(tvb, offset + 3));
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_uint(ti, hf_iscsi_CID, tvb, offset + 8, 2, tvb_get_ntohs(tvb, offset + 8));
proto_tree_add_uint(ti, hf_iscsi_ISID, tvb, offset + 12, 2, tvb_get_ntohs(tvb, offset + 12));
proto_tree_add_uint(ti, hf_iscsi_TSID, tvb, offset + 14, 2, tvb_get_ntohs(tvb, offset + 14));
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_InitCmdSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
}
else {
proto_tree_add_uint(ti, hf_iscsi_CmdSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpStatSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
}
offset += 48;
if(pdu_len > 48) {
int text_len = min(data_segment_len, pdu_len - 48);
proto_item *tf = proto_tree_add_text(ti, tvb, 48, text_len, "Key/Value Pairs");
proto_tree *tt = proto_item_add_subtree(tf, ett_iscsi_KeyValues);
offset = addTextKeys(tt, tvb, 48, text_len);
}
}
else if((enable_03_mode && opcode == 0x83) ||
(!enable_03_mode && opcode == 0xc3)) {
/* Login Response */
gint b = tvb_get_guint8(tvb, offset + 1);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
}
proto_tree_add_boolean(ti, hf_iscsi_Login_F, tvb, offset + 1, 1, b);
proto_tree_add_uint(ti, hf_iscsi_VersionMax, tvb, offset + 2, 1, tvb_get_guint8(tvb, offset + 2));
proto_tree_add_uint(ti, hf_iscsi_VersionMin, tvb, offset + 3, 1, tvb_get_guint8(tvb, offset + 3));
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_uint(ti, hf_iscsi_ISID, tvb, offset + 12, 2, tvb_get_ntohs(tvb, offset + 12));
proto_tree_add_uint(ti, hf_iscsi_TSID, tvb, offset + 14, 2, tvb_get_ntohs(tvb, offset + 14));
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_InitStatSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpCmdSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
proto_tree_add_uint(ti, hf_iscsi_MaxCmdSN, tvb, offset + 32, 4, tvb_get_ntohl(tvb, offset + 32));
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Login_Status03, tvb, offset + 36, 1, tvb_get_guint8(tvb, offset + 36));
}
else {
proto_tree_add_uint(ti, hf_iscsi_Login_Status, tvb, offset + 36, 1, tvb_get_ntohs(tvb, offset + 36));
}
offset += 48;
if(pdu_len > 48) {
int text_len = min(data_segment_len, pdu_len - 48);
proto_item *tf = proto_tree_add_text(ti, tvb, 48, text_len, "Key/Value Pairs");
proto_tree *tt = proto_item_add_subtree(tf, ett_iscsi_KeyValues);
offset = addTextKeys(tt, tvb, 48, text_len);
}
}
else if((enable_03_mode && opcode == 0x04) ||
(!enable_03_mode && (opcode == 0x04 ||
opcode == 0x44 ||
opcode == 0x84))) {
/* Text Command */
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
proto_tree_add_boolean(ti, hf_iscsi_Text_F, tvb, offset + 1, 1, tvb_get_guint8(tvb, offset + 1));
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_CmdSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpStatSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
offset += 48;
if(pdu_len > 48) {
int text_len = min(data_segment_len, pdu_len - 48);
proto_item *tf = proto_tree_add_text(ti, tvb, 48, text_len, "Key/Value Pairs");
proto_tree *tt = proto_item_add_subtree(tf, ett_iscsi_KeyValues);
offset = addTextKeys(tt, tvb, 48, text_len);
}
}
else if((enable_03_mode && opcode == 0x84) ||
(!enable_03_mode && (opcode == 0xc4))) {
/* Text Response */
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
proto_tree_add_boolean(ti, hf_iscsi_Text_F, tvb, offset + 1, 1, tvb_get_guint8(tvb, offset + 1));
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_StatSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpCmdSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
proto_tree_add_uint(ti, hf_iscsi_MaxCmdSN, tvb, offset + 32, 4, tvb_get_ntohl(tvb, offset + 32));
offset += 48;
if(pdu_len > 48) {
int text_len = min(data_segment_len, pdu_len - 48);
proto_item *tf = proto_tree_add_text(ti, tvb, 48, text_len, "Key/Value Pairs");
proto_tree *tt = proto_item_add_subtree(tf, ett_iscsi_KeyValues);
offset = addTextKeys(tt, tvb, 48, text_len);
}
}
else if(opcode == 0x05) {
/* SCSI Data (write) */
gint b = tvb_get_guint8(tvb, offset + 1);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
}
proto_tree_add_boolean(ti, hf_iscsi_SCSIData_F, tvb, offset + 1, 1, b);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_bytes(ti, hf_iscsi_LUN, tvb, offset + 8, 8, tvb_get_ptr(tvb, offset + 8, 8));
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_TargetTransferTag, tvb, offset + 20, 4, tvb_get_ntohl(tvb, offset + 20));
proto_tree_add_uint(ti, hf_iscsi_ExpStatSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
if(!enable_03_mode)
proto_tree_add_uint(ti, hf_iscsi_DataSN, tvb, offset + 36, 4, tvb_get_ntohl(tvb, offset + 36));
proto_tree_add_uint(ti, hf_iscsi_BufferOffset, tvb, offset + 40, 4, tvb_get_ntohl(tvb, offset + 40));
offset += 48;
}
else if((enable_03_mode && opcode == 0x85) ||
(!enable_03_mode && opcode == 0xc5)) {
/* SCSI Data (read) */
gint b = tvb_get_guint8(tvb, offset + 1);
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_boolean(ti, hf_iscsi_SCSIData_P03, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIData_S03, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIData_O03, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIData_U03, tvb, offset + 1, 1, b);
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
proto_tree_add_boolean(ti, hf_iscsi_SCSIData_F, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIData_O, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIData_U, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_SCSIData_S, tvb, offset + 1, 1, b);
proto_tree_add_uint(ti, hf_iscsi_StatusResponse_is_status, tvb, offset + 3, 1, tvb_get_guint8(tvb, offset + 3));
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_TargetTransferTag, tvb, offset + 20, 4, tvb_get_ntohl(tvb, offset + 20));
}
proto_tree_add_uint(ti, hf_iscsi_StatSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpCmdSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
proto_tree_add_uint(ti, hf_iscsi_MaxCmdSN, tvb, offset + 32, 4, tvb_get_ntohl(tvb, offset + 32));
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_CommandStatus03, tvb, offset + 36, 1, tvb_get_guint8(tvb, offset + 36));
}
else {
proto_tree_add_uint(ti, hf_iscsi_DataSN, tvb, offset + 36, 4, tvb_get_ntohl(tvb, offset + 36));
}
proto_tree_add_uint(ti, hf_iscsi_BufferOffset, tvb, offset + 40, 4, tvb_get_ntohl(tvb, offset + 40));
proto_tree_add_uint(ti, hf_iscsi_SCSIData_ResidualCount, tvb, offset + 44, 4, tvb_get_ntohl(tvb, offset + 44));
offset += 48;
}
else if((enable_03_mode && opcode == 0x06) ||
(!enable_03_mode && (opcode == 0x06 || opcode == 0x46))) {
/* Logout Command */
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_uint(ti, hf_iscsi_CID, tvb, offset + 8, 2, tvb_get_ntohs(tvb, offset + 8));
if(enable_03_mode)
proto_tree_add_uint(ti, hf_iscsi_Logout_Reason03, tvb, offset + 11, 1, tvb_get_guint8(tvb, offset + 11));
else
proto_tree_add_uint(ti, hf_iscsi_Logout_Reason, tvb, offset + 11, 1, tvb_get_guint8(tvb, offset + 11));
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
if(!enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_ExpStatSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
}
offset += 48;
}
else if((enable_03_mode && opcode == 0x86) ||
(!enable_03_mode && opcode == 0xc6)) {
/* Logout Response */
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
}
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_ExpCmdSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
proto_tree_add_uint(ti, hf_iscsi_MaxCmdSN, tvb, offset + 32, 4, tvb_get_ntohl(tvb, offset + 32));
proto_tree_add_uint(ti, hf_iscsi_Logout_Response, tvb, offset + 36, 1, tvb_get_guint8(tvb, offset + 36));
offset += 48;
}
else if((!enable_03_mode && (opcode == 0x10 || opcode == 0x50))) {
/* SNACK Request */
gint b = tvb_get_guint8(tvb, offset + 1);
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
proto_tree_add_boolean(ti, hf_iscsi_SNACK_S, tvb, offset + 1, 1, b);
proto_tree_add_boolean(ti, hf_iscsi_AddRuns, tvb, offset + 3, 1, tvb_get_guint8(tvb, offset + 3));
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_BegRun, tvb, offset + 20, 4, tvb_get_ntohl(tvb, offset + 20));
proto_tree_add_uint(ti, hf_iscsi_RunLength, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
if(b & 0x01) {
proto_tree_add_uint(ti, hf_iscsi_ExpStatSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
}
else {
proto_tree_add_uint(ti, hf_iscsi_ExpDataSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
}
proto_tree_add_bytes(ti, hf_iscsi_AdditionalRuns, tvb, offset + 32, 16, tvb_get_ptr(tvb, offset + 32, 16));
offset += 48;
}
else if((enable_03_mode && opcode == 0x90) ||
(!enable_03_mode && opcode == 0xd0)) {
/* R2T */
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
}
proto_tree_add_uint(ti, hf_iscsi_InitiatorTaskTag, tvb, offset + 16, 4, tvb_get_ntohl(tvb, offset + 16));
proto_tree_add_uint(ti, hf_iscsi_TargetTransferTag, tvb, offset + 20, 4, tvb_get_ntohl(tvb, offset + 20));
if(!enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_StatSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
}
proto_tree_add_uint(ti, hf_iscsi_ExpCmdSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
proto_tree_add_uint(ti, hf_iscsi_MaxCmdSN, tvb, offset + 32, 4, tvb_get_ntohl(tvb, offset + 32));
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_DesiredDataLength, tvb, offset + 36, 4, tvb_get_ntohl(tvb, offset + 36));
proto_tree_add_uint(ti, hf_iscsi_BufferOffset, tvb, offset + 40, 4, tvb_get_ntohl(tvb, offset + 40));
}
else {
proto_tree_add_uint(ti, hf_iscsi_DataSN, tvb, offset + 36, 4, tvb_get_ntohl(tvb, offset + 36));
proto_tree_add_uint(ti, hf_iscsi_BufferOffset, tvb, offset + 40, 4, tvb_get_ntohl(tvb, offset + 40));
proto_tree_add_uint(ti, hf_iscsi_DesiredDataLength, tvb, offset + 44, 4, tvb_get_ntohl(tvb, offset + 44));
}
offset += 48;
}
else if((enable_03_mode && opcode == 0x91) ||
(!enable_03_mode && opcode == 0xd1)) {
/* Asynchronous Message */
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
}
proto_tree_add_bytes(ti, hf_iscsi_LUN, tvb, offset + 8, 8, tvb_get_ptr(tvb, offset + 8, 8));
proto_tree_add_uint(ti, hf_iscsi_StatSN, tvb, offset + 24, 4, tvb_get_ntohl(tvb, offset + 24));
proto_tree_add_uint(ti, hf_iscsi_ExpCmdSN, tvb, offset + 28, 4, tvb_get_ntohl(tvb, offset + 28));
proto_tree_add_uint(ti, hf_iscsi_MaxCmdSN, tvb, offset + 32, 4, tvb_get_ntohl(tvb, offset + 32));
proto_tree_add_uint(ti, hf_iscsi_SCSIEvent, tvb, offset + 36, 1, tvb_get_guint8(tvb, offset + 36));
proto_tree_add_uint(ti, hf_iscsi_iSCSIEvent, tvb, offset + 37, 1, tvb_get_guint8(tvb, offset + 37));
proto_tree_add_uint(ti, hf_iscsi_Parameter1, tvb, offset + 38, 2, tvb_get_ntohs(tvb, offset + 38));
proto_tree_add_uint(ti, hf_iscsi_Parameter2, tvb, offset + 40, 2, tvb_get_ntohs(tvb, offset + 40));
offset += 48;
}
else if(opcode == 0xef) {
/* Reject */
if(enable_03_mode) {
proto_tree_add_uint(ti, hf_iscsi_Opcode_03, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_Length03, tvb, offset + 4, 4, data_segment_len);
proto_tree_add_uint(ti, hf_iscsi_Reject_Reason03, tvb, offset + 36, 1, tvb_get_guint8(tvb, offset + 36));
}
else {
proto_tree_add_uint(ti, hf_iscsi_Opcode, tvb,
offset + 0, 1, opcode);
proto_tree_add_uint(ti, hf_iscsi_DataSegmentLength, tvb, offset + 5, 3, data_segment_len);
proto_tree_add_uint(ti, hf_iscsi_Reject_Reason, tvb, offset + 40, 1, tvb_get_guint8(tvb, offset + 40));
proto_tree_add_uint(ti, hf_iscsi_Reject_FirstBadByte, tvb, offset + 42, 1, tvb_get_ntohs(tvb, offset + 42));
}
offset += 48;
}
if(pdu_len > offset)
proto_tree_add_bytes(ti, hf_iscsi_Payload, tvb, offset, pdu_len - offset, tvb_get_ptr(tvb, offset, pdu_len - offset));
}
return TRUE;
}
/* Register the protocol with Ethereal */
/* this format is require because a script is used to build the C function
that calls all the protocol registration.
*/
void
proto_register_iscsi(void)
{
/* Setup list of header fields See Section 1.6.1 for details*/
static hf_register_info hf[] = {
{ &hf_iscsi_Payload,
{ "Payload", "iscsi.payload",
FT_BYTES, BASE_HEX, NULL, 0,
"Payload" }
},
{ &hf_iscsi_Opcode,
{ "Opcode", "iscsi.opcode",
FT_UINT8, BASE_HEX, VALS(iscsi_opcodes), 0,
"Opcode" }
},
{ &hf_iscsi_Opcode_03,
{ "Opcode", "iscsi.opcode",
FT_UINT8, BASE_HEX, VALS(iscsi_opcodes_03), 0,
"Opcode" }
},
#if 0
{ &hf_iscsi_X,
{ "X", "iscsi.x",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_X), 0x80,
"Command Retry" }
},
{ &hf_iscsi_I,
{ "I", "iscsi.i",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_I), 0x40,
"Immediate delivery" }
},
#endif
{ &hf_iscsi_SCSICommand_X03,
{ "X", "iscsi.scsicommand.x",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_X), 0x80,
"Command Retry" }
},
{ &hf_iscsi_SCSICommand_F,
{ "F", "iscsi.scsicommand.f",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_F), 0x80,
"PDU completes command" }
},
{ &hf_iscsi_SCSICommand_R,
{ "R", "iscsi.scsicommand.r",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_R), 0x40,
"Command reads from SCSI target" }
},
{ &hf_iscsi_SCSICommand_W,
{ "W", "iscsi.scsicommand.r",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_W), 0x20,
"Command writes to SCSI target" }
},
{ &hf_iscsi_SCSICommand_Attr,
{ "Attr", "iscsi.scsicommand.attr",
FT_UINT8, BASE_HEX, VALS(iscsi_scsicommand_taskattrs), 0x07,
"SCSI task attributes" }
},
{ &hf_iscsi_SCSICommand_CRN,
{ "CRN", "iscsi.scsicommand.crn",
FT_UINT8, BASE_HEX, NULL, 0,
"SCSI command reference number" }
},
{ &hf_iscsi_SCSICommand_AddCDB,
{ "AddCDB", "iscsi.scsicommand.addcdb",
FT_UINT8, BASE_HEX, NULL, 0,
"Additional CDB length (in 4 byte units)" }
},
{ &hf_iscsi_Length03,
{ "Length", "iscsi.length",
FT_UINT32, BASE_HEX, NULL, 0,
"Data length (bytes)" }
},
{ &hf_iscsi_DataSegmentLength,
{ "DataSegmentLength", "iscsi.datasegmentlength",
FT_UINT32, BASE_HEX, NULL, 0,
"Data segment length (bytes)" }
},
{ &hf_iscsi_TotalAHSLength,
{ "TotalAHSLength", "iscsi.totalahslength",
FT_UINT8, BASE_HEX, NULL, 0,
"Total additional header segment length (4 byte words)" }
},
{ &hf_iscsi_LUN,
{ "LUN", "iscsi.lun",
FT_BYTES, BASE_HEX, NULL, 0,
"Logical Unit Number" }
},
{ &hf_iscsi_InitiatorTaskTag,
{ "InitiatorTaskTag", "iscsi.initiatortasktag",
FT_UINT32, BASE_HEX, NULL, 0,
"Initiator's task tag" }
},
{ &hf_iscsi_ExpectedDataTransferLength,
{ "ExpectedDataTransferLength", "iscsi.scsicommand.expecteddatatransferlength",
FT_UINT32, BASE_HEX, NULL, 0,
"Expected length of data transfer" }
},
{ &hf_iscsi_CmdSN,
{ "CmdSN", "iscsi.cmdsn",
FT_UINT32, BASE_HEX, NULL, 0,
"Sequence number for this command (0 == immediate)" }
},
{ &hf_iscsi_ExpStatSN,
{ "ExpStatSN", "iscsi.expstatsn",
FT_UINT32, BASE_HEX, NULL, 0,
"Next expected status sequence number" }
},
{ &hf_iscsi_SCSICommand_CDB,
{ "CDB", "iscsi.scsicommand.cdb",
FT_BYTES, BASE_HEX, NULL, 0,
"SCSI CDB" }
},
{ &hf_iscsi_SCSICommand_CDB0,
{ "CDB", "iscsi.scsicommand.cdb0",
FT_UINT8, BASE_HEX, VALS(iscsi_scsi_cdb0), 0,
"SCSI CDB[0]" }
},
{ &hf_iscsi_SCSIResponse_BasicResidualCount,
{ "BasicResidualCount", "iscsi.scsiresponse.basicresidualcount",
FT_UINT32, BASE_HEX, NULL, 0,
"Residual count" }
},
{ &hf_iscsi_StatSN,
{ "StatSN", "iscsi.statsn",
FT_UINT32, BASE_HEX, NULL, 0,
"Status sequence number" }
},
{ &hf_iscsi_ExpCmdSN,
{ "ExpCmdSN", "iscsi.expcmdsn",
FT_UINT32, BASE_HEX, NULL, 0,
"Next expected command sequence number" }
},
{ &hf_iscsi_MaxCmdSN,
{ "MaxCmdSN", "iscsi.maxcmdsn",
FT_UINT32, BASE_HEX, NULL, 0,
"Maximum acceptable command sequence number" }
},
{ &hf_iscsi_SCSIResponse_o03,
{ "o", "iscsi.scsiresponse.o",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_o), 0x08,
"Bi-directional read residual overflow" }
},
{ &hf_iscsi_SCSIResponse_u03,
{ "u", "iscsi.scsiresponse.u",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_u), 0x04,
"Bi-directional read residual underflow" }
},
{ &hf_iscsi_SCSIResponse_O03,
{ "O", "iscsi.scsiresponse.O",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_O), 0x02,
"Residual overflow" }
},
{ &hf_iscsi_SCSIResponse_U03,
{ "U", "iscsi.scsiresponse.U",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_U), 0x01,
"Residual underflow" }
},
{ &hf_iscsi_SCSIResponse_o,
{ "o", "iscsi.scsiresponse.o",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_o), 0x10,
"Bi-directional read residual overflow" }
},
{ &hf_iscsi_SCSIResponse_u,
{ "u", "iscsi.scsiresponse.u",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_u), 0x08,
"Bi-directional read residual underflow" }
},
{ &hf_iscsi_SCSIResponse_O,
{ "O", "iscsi.scsiresponse.O",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_O), 0x04,
"Residual overflow" }
},
{ &hf_iscsi_SCSIResponse_U,
{ "U", "iscsi.scsiresponse.U",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_U), 0x02,
"Residual underflow" }
},
{ &hf_iscsi_SCSIResponse_S,
{ "S", "iscsi.scsiresponse.S",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_scsiresponse_S), 0x01,
"Status/Response" }
},
{ &hf_iscsi_CommandStatus03,
{ "CommandStatus", "iscsi.commandstatus",
FT_UINT8, BASE_HEX, VALS(iscsi_scsi_statuses), 0,
"SCSI command status value" }
},
{ &hf_iscsi_StatusResponse_is_status,
{ "Status/Response", "iscsi.scsiresponse.statusresponse",
FT_UINT8, BASE_HEX, VALS(iscsi_scsi_statuses), 0,
"SCSI command status value" }
},
{ &hf_iscsi_StatusResponse_is_response,
{ "Status/Response", "iscsi.scsiresponse.statusresponse",
FT_UINT8, BASE_HEX, VALS(iscsi_scsi_responses), 0,
"iSCSI response value" }
},
{ &hf_iscsi_SCSIResponse_SenseLength,
{ "SenseLength", "iscsi.scsiresponse.senselength",
FT_UINT16, BASE_HEX, NULL, 0,
"SCSI sense data length" }
},
{ &hf_iscsi_SCSIResponse_BidiReadResidualCount,
{ "BidiReadResidualCount", "iscsi.scsiresponse.bidireadresidualcount",
FT_UINT32, BASE_HEX, NULL, 0,
"Bi-directional read residual count" }
},
{ &hf_iscsi_SCSIData_F,
{ "F", "iscsi.scsidata.f",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_F), 0x80,
"Final PDU" }
},
{ &hf_iscsi_SCSIData_P03,
{ "P", "iscsi.scsidata.p",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_P), 0x80,
"Poll requested" }
},
{ &hf_iscsi_SCSIData_S03,
{ "S", "iscsi.scsidata.s",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_S), 0x04,
"PDU Contains SCSI command status" }
},
{ &hf_iscsi_SCSIData_O03,
{ "O", "iscsi.scsidata.O",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_O), 0x02,
"Residual overflow" }
},
{ &hf_iscsi_SCSIData_U03,
{ "U", "iscsi.scsidata.U",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_U), 0x01,
"Residual underflow" }
},
{ &hf_iscsi_SCSIData_S,
{ "S", "iscsi.scsidata.s",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_S), 0x01,
"PDU Contains SCSI command status" }
},
{ &hf_iscsi_SCSIData_U,
{ "U", "iscsi.scsidata.U",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_U), 0x02,
"Residual underflow" }
},
{ &hf_iscsi_SCSIData_O,
{ "O", "iscsi.scsidata.O",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_O), 0x04,
"Residual overflow" }
},
{ &hf_iscsi_TargetTransferTag,
{ "TargetTransferTag", "iscsi.targettransfertag",
FT_UINT32, BASE_HEX, NULL, 0,
"Target transfer tag" }
},
{ &hf_iscsi_BufferOffset,
{ "BufferOffset", "iscsi.bufferOffset",
FT_UINT32, BASE_HEX, NULL, 0,
"Buffer offset" }
},
{ &hf_iscsi_SCSIData_ResidualCount,
{ "ResidualCount", "iscsi.scsidata.readresidualcount",
FT_UINT32, BASE_HEX, NULL, 0,
"Residual count" }
},
{ &hf_iscsi_DataSN,
{ "DataSN", "iscsi.datasn",
FT_UINT32, BASE_HEX, NULL, 0,
"Data sequence number" }
},
{ &hf_iscsi_VersionMax,
{ "VersionMax", "iscsi.versionmax",
FT_UINT8, BASE_HEX, NULL, 0,
"Maximum supported protocol version" }
},
{ &hf_iscsi_VersionMin,
{ "VersionMin", "iscsi.versionmin",
FT_UINT8, BASE_HEX, NULL, 0,
"Minimum supported protocol version" }
},
{ &hf_iscsi_CID,
{ "CID", "iscsi.cid",
FT_UINT16, BASE_HEX, NULL, 0,
"Connection identifier" }
},
{ &hf_iscsi_ISID,
{ "ISID", "iscsi.isid",
FT_UINT16, BASE_HEX, NULL, 0,
"Initiator part of session identifier" }
},
{ &hf_iscsi_TSID,
{ "TSID", "iscsi.tsid",
FT_UINT16, BASE_HEX, NULL, 0,
"Target part of session identifier" }
},
{ &hf_iscsi_InitStatSN,
{ "InitStatSN", "iscsi.initstatsn",
FT_UINT32, BASE_HEX, NULL, 0,
"Initial status sequence number" }
},
{ &hf_iscsi_InitCmdSN,
{ "InitCmdSN", "iscsi.initcmdsn",
FT_UINT32, BASE_HEX, NULL, 0,
"Initial command sequence number" }
},
{ &hf_iscsi_Login_F,
{ "F", "iscsi.login.f",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_F), 0x80,
"Final PDU in login sequence" }
},
{ &hf_iscsi_Login_Status03,
{ "Status", "iscsi.login.status",
FT_UINT8, BASE_HEX, VALS(iscsi_login_status03), 0,
"Status" }
},
{ &hf_iscsi_Login_Status,
{ "Status", "iscsi.login.status",
FT_UINT16, BASE_HEX, VALS(iscsi_login_status), 0,
"Status class and detail" }
},
{ &hf_iscsi_KeyValue,
{ "KeyValue", "iscsi.keyvalue",
FT_STRING, 0, NULL, 0,
"Key/value pair" }
},
{ &hf_iscsi_Text_F,
{ "F", "iscsi.text.f",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_F), 0x80,
"Final PDU in text sequence" }
},
{ &hf_iscsi_NOP_P,
{ "P", "iscsi.nop.p",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_P), 0x80,
"Poll requested" }
},
{ &hf_iscsi_ExpDataSN,
{ "ExpCmdSN", "iscsi.expdatasn",
FT_UINT32, BASE_HEX, NULL, 0,
"Next expected data sequence number" }
},
{ &hf_iscsi_R2TExpDataSN,
{ "R2TExpCmdSN", "iscsi.r2texpdatasn",
FT_UINT32, BASE_HEX, NULL, 0,
"Next expected R2T data sequence number" }
},
{ &hf_iscsi_SCSITask_Response,
{ "Response", "iscsi.scsitask.response",
FT_UINT8, BASE_HEX, VALS(iscsi_task_responses), 0,
"Response" }
},
{ &hf_iscsi_SCSITask_ReferencedTaskTag,
{ "InitiatorTaskTag", "iscsi.scsitask.referencedtasktag",
FT_UINT32, BASE_HEX, NULL, 0,
"Task's initiator task tag" }
},
{ &hf_iscsi_SCSITask_Function,
{ "Function", "iscsi.scsitask.function",
FT_UINT8, BASE_HEX, VALS(iscsi_task_functions), 0x7F,
"Requested task function" }
},
{ &hf_iscsi_Logout_Reason03,
{ "Reason", "iscsi.logout.reason",
FT_UINT8, BASE_HEX, VALS(iscsi_logout_reasons03), 0,
"Reason for logout" }
},
{ &hf_iscsi_Logout_Reason,
{ "Reason", "iscsi.logout.reason",
FT_UINT8, BASE_HEX, VALS(iscsi_logout_reasons), 0,
"Reason for logout" }
},
{ &hf_iscsi_Logout_Response,
{ "Response", "iscsi.logout.response",
FT_UINT8, BASE_HEX, VALS(iscsi_logout_response), 0,
"Logout response" }
},
{ &hf_iscsi_DesiredDataLength,
{ "DesiredDataLength", "iscsi.desireddatalength",
FT_UINT32, BASE_HEX, NULL, 0,
"Desired data length (bytes)" }
},
{ &hf_iscsi_SCSIEvent03,
{ "SCSIEvent", "iscsi.scsievent",
FT_UINT8, BASE_HEX, VALS(iscsi_scsievents03), 0,
"SCSI event indicator" }
},
{ &hf_iscsi_iSCSIEvent03,
{ "iSCSIEvent", "iscsi.iscsievent",
FT_UINT8, BASE_HEX, VALS(iscsi_iscsievents03), 0,
"iSCSI event indicator" }
},
{ &hf_iscsi_Parameter1,
{ "Parameter1", "iscsi.parameter1",
FT_UINT16, BASE_HEX, NULL, 0,
"Parameter 1" }
},
{ &hf_iscsi_Parameter2,
{ "Parameter2", "iscsi.parameter2",
FT_UINT16, BASE_HEX, NULL, 0,
"Parameter 2" }
},
{ &hf_iscsi_Reject_Reason,
{ "Reason", "iscsi.reject.reason",
FT_UINT8, BASE_HEX, VALS(iscsi_reject_reasons), 0,
"Reason for command rejection" }
},
{ &hf_iscsi_Reject_FirstBadByte,
{ "FirstBadByte", "iscsi.reject.firstbadbyte",
FT_UINT16, BASE_HEX, NULL, 0,
"Offset of first bad byte in PDU when reason is 'format error'" }
},
{ &hf_iscsi_Reject_Reason03,
{ "Reason", "iscsi.reject.reason",
FT_UINT8, BASE_HEX, VALS(iscsi_reject_reasons03), 0,
"Reason for command rejection" }
},
{ &hf_iscsi_SNACK_S,
{ "S", "iscsi.snack.s",
FT_BOOLEAN, 8, TFS(&iscsi_meaning_SNACK_S), 0x01,
"Status not data SNACK requested" }
},
{ &hf_iscsi_AddRuns,
{ "AddRuns", "iscsi.snack.addruns",
FT_UINT8, BASE_HEX, NULL, 0,
"Number of additional runs" }
},
{ &hf_iscsi_BegRun,
{ "BegRun", "iscsi.snack.begrun",
FT_UINT32, BASE_HEX, NULL, 0,
"First missed DataSN or StatSN" }
},
{ &hf_iscsi_RunLength,
{ "RunLength", "iscsi.snack.runlength",
FT_UINT32, BASE_HEX, NULL, 0,
"Number of additional missing status PDUs in this run" }
},
{ &hf_iscsi_AdditionalRuns,
{ "AdditionalRuns", "iscsi.snack.additionalruns",
FT_BYTES, BASE_HEX, NULL, 0,
"Additional runs of missing status PDUs" }
},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_iscsi_KeyValues,
&ett_iscsi_CDB,
};
/* Register the protocol name and description */
proto_iscsi = proto_register_protocol("iSCSI", "ISCSI", "iscsi");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_iscsi, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
{
module_t *iscsi_module = prefs_register_protocol(proto_iscsi, NULL);
prefs_register_bool_preference(iscsi_module,
"version03compatible",
"Enable 03 compatibility mode",
"When enabled, assume packets conform to the legacy 03 version of the iSCSI specification",
&enable_03_mode);
prefs_register_bool_preference(iscsi_module,
"boguspdufilter",
"Enable bogus pdu filter",
"When enabled, packets that appear bogus are ignored",
&enable_bogosity_filter);
prefs_register_uint_preference(iscsi_module,
"boguspdumaxdatalen",
"Bogus pdu max data length threshold",
"Treat packets whose data segment length is greater than this value as bogus",
10,
&bogus_pdu_data_length_threshold);
prefs_register_uint_preference(iscsi_module,
"boguspdumaxdigestpadding",
"Bogus pdu max digest padding",
"Treat packets whose apparent total digest size is greater than this value as bogus",
10,
&bogus_pdu_max_digest_padding);
}
}
/* If this dissector uses sub-dissector registration add a registration routine.
This format is required because a script is used to find these routines and
create the code that calls these routines.
*/
void
proto_reg_handoff_iscsi(void)
{
heur_dissector_add("tcp", dissect_iscsi, proto_iscsi);
}
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