new protocol: ATAoverETHERNET (AoE)
svn path=/trunk/; revision=12673
This commit is contained in:
Ronnie Sahlberg
parent
ced793054b
commit
ab3d6214d5
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@ -69,6 +69,7 @@ DISSECTOR_SRC = \
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packet-ansi_a.c \
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packet-ansi_map.c \
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packet-aodv.c \
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packet-aoe.c \
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packet-ap1394.c \
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packet-app-pkix-cert.c \
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packet-arcnet.c \
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@ -0,0 +1,356 @@
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/* packet-aoe.c
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* Routines for dissecting the ATA over Ethernet protocol.
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* Ronnie Sahlberg 2004
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*
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* $Id: packet-aoe.c 11410 2004-07-18 18:06:47Z gram $
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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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <glib.h>
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#ifdef NEED_SNPRINTF_H
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# include "snprintf.h"
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#endif
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#include <epan/packet.h>
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#define ETHERTYPE_AOE 0x88A2
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static int proto_aoe;
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static int hf_aoe_version=-1;
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static int hf_aoe_flags_response=-1;
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static int hf_aoe_flags_error=-1;
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static int hf_aoe_error=-1;
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static int hf_aoe_major=-1;
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static int hf_aoe_minor=-1;
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static int hf_aoe_cmd=-1;
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static int hf_aoe_tag=-1;
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static int hf_aoe_aflags_e=-1;
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static int hf_aoe_aflags_d=-1;
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static int hf_aoe_aflags_a=-1;
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static int hf_aoe_aflags_w=-1;
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static int hf_aoe_err_feature=-1;
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static int hf_aoe_sector_count=-1;
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static int hf_aoe_acmd=-1;
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static int hf_aoe_astatus=-1;
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static int hf_aoe_lba=-1;
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static gint ett_aoe = -1;
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#define AOE_FLAGS_RESPONSE 0x08
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#define AOE_FLAGS_ERROR 0x04
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#define AOE_AFLAGS_E 0x40
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#define AOE_AFLAGS_D 0x10
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#define AOE_AFLAGS_A 0x02
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#define AOE_AFLAGS_W 0x01
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static const true_false_string tfs_aflags_e = {
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"LBA48 extended command",
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"Normal command"
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};
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static const true_false_string tfs_aflags_d = {
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"?",
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"?"
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};
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static const true_false_string tfs_aflags_a = {
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"ASYNCHRONOUS Write",
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"synchronous write"
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};
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static const true_false_string tfs_aflags_w = {
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"WRITE to the device",
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"No write to device"
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};
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static const true_false_string tfs_response = {
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"Response",
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"Request"
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};
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static const true_false_string tfs_error = {
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"Error",
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"No error"
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};
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static const value_string error_vals[] = {
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{ 1, "Unrecognized command code" },
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{ 2, "Bad argument parameter" },
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{ 3, "Device unavailable" },
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{ 4, "Config string present" },
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{ 5, "Unsupported version" },
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{ 0, NULL}
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};
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#define AOE_CMD_ISSUE_ATA_COMMAND 0
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#define AOE_CMD_QUERY_CONFIG_INFO 1
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static const value_string cmd_vals[] = {
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{ AOE_CMD_ISSUE_ATA_COMMAND, "Issue ATA Command" },
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{ AOE_CMD_QUERY_CONFIG_INFO, "Query Config Information" },
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{ 0, NULL}
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};
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static const value_string ata_cmd_vals[] = {
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{ 0x00, "NOP" },
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{ 0x08, "Atapi soft reset" },
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{ 0x10, "Recalibrate" },
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{ 0x20, "Read sectors (with retry)" },
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{ 0x21, "Read sectors (no retry)" },
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{ 0x22, "Read long (with retry)" },
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{ 0x23, "Read long (no retry)" },
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{ 0x24, "Wdcc read ext" },
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{ 0x30, "Write sectors (with retry)" },
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{ 0x31, "Write sectors (no retry)" },
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{ 0x32, "Write long (with retry)" },
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{ 0x33, "Write long (no retry)" },
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{ 0x34, "Wdcc write ext" },
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{ 0x3c, "Write verify" },
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{ 0x40, "Read verify sectors (with retry)" },
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{ 0x41, "Read verify sectors (no retry)" },
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{ 0x50, "Format track" },
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{ 0x70, "Seek" },
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{ 0x90, "Execute device diagnostics" },
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{ 0x91, "Initialize device parameters" },
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{ 0x92, "Download microcode" },
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{ 0x94, "Standy immediate" },
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{ 0x95, "Idle immediate" },
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{ 0x96, "Standby" },
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{ 0x97, "Idle" },
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{ 0x98, "Check power mode" },
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{ 0x99, "Sleep" },
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{ 0xa0, "Atapi packet" },
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{ 0xa1, "Atapi identify device" },
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{ 0xa2, "Atapi service" },
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{ 0xb0, "Smart" },
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{ 0xc4, "Read multiple" },
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{ 0xc5, "Write multiple" },
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{ 0xc6, "Set multiple mode" },
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{ 0xc8, "Read dma (with retry)" },
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{ 0xc9, "Read dma (no retry)" },
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{ 0xca, "Write dma (with retry)" },
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{ 0xcb, "Write dma (no retru)" },
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{ 0xde, "Door lock" },
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{ 0xdf, "Door unlock" },
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{ 0xe0, "Standy immediate" },
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{ 0xe1, "Idle immediate" },
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{ 0xe2, "Standby" },
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{ 0xe3, "Idle" },
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{ 0xe4, "Read buffer" },
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{ 0xe5, "Check power mode" },
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{ 0xe6, "Sleep" },
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{ 0xe8, "Write buffer" },
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{ 0xec, "Identify Device" },
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{ 0xed, "Media eject" },
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{ 0xee, "Identify device dma" },
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{ 0xef, "Set features" },
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{ 0xf1, "Security set password" },
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{ 0xf2, "Security unlock" },
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{ 0xf3, "Security erase prepare" },
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{ 0xf4, "Security erase unit" },
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{ 0xf5, "Security freeze" },
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{ 0xf6, "Security disable password" },
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{ 0, NULL}
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};
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static void
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dissect_ata_pdu(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset, gboolean response)
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{
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guint8 aflags;
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guint64 lba;
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/* aflags */
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aflags=tvb_get_guint8(tvb, offset);
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proto_tree_add_item(tree, hf_aoe_aflags_e, tvb, offset, 1, FALSE);
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if(aflags&AOE_AFLAGS_E){
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proto_tree_add_item(tree, hf_aoe_aflags_d, tvb, offset, 1, FALSE);
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}
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if(aflags&AOE_AFLAGS_W){
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proto_tree_add_item(tree, hf_aoe_aflags_a, tvb, offset, 1, FALSE);
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}
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proto_tree_add_item(tree, hf_aoe_aflags_w, tvb, offset, 1, FALSE);
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offset++;
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/* err/feature */
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proto_tree_add_item(tree, hf_aoe_err_feature, tvb, offset, 1, FALSE);
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offset++;
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/* sector count */
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proto_tree_add_item(tree, hf_aoe_sector_count, tvb, offset, 1, FALSE);
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offset++;
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/* ata command/status */
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if(!response){
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proto_tree_add_item(tree, hf_aoe_acmd, tvb, offset, 1, FALSE);
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if (check_col(pinfo->cinfo, COL_INFO)) {
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col_append_fstr(pinfo->cinfo, COL_INFO, " ATA:%s", val_to_str(tvb_get_guint8(tvb, offset), ata_cmd_vals, " Unknown ATA<0x%02x>"));
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}
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} else {
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proto_tree_add_item(tree, hf_aoe_astatus, tvb, offset, 1, FALSE);
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}
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offset++;
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/*lba probably complete wrong */
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lba=tvb_get_letohs(tvb, offset+4);
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lba=(lba<<32)|tvb_get_letohl(tvb, offset);
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offset+=8;
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proto_tree_add_uint64(tree, hf_aoe_lba, tvb, offset-8, 6, lba);
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}
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static void
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dissect_aoe_v1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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guint8 flags, cmd;
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/* read and dissect the flags */
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flags=tvb_get_guint8(tvb, 0)&0x0f;
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proto_tree_add_item(tree, hf_aoe_flags_response, tvb, 0, 1, FALSE);
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proto_tree_add_item(tree, hf_aoe_flags_error, tvb, 0, 1, FALSE);
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/* error */
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if(flags&AOE_FLAGS_ERROR){
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proto_tree_add_item(tree, hf_aoe_error, tvb, 1, 1, FALSE);
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if (check_col(pinfo->cinfo, COL_INFO)) {
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col_append_fstr(pinfo->cinfo, COL_INFO, "Error:%s ", val_to_str(tvb_get_guint8(tvb, 1), error_vals, "Unknown error<%d>"));
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}
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}
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/* major/minor address */
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proto_tree_add_item(tree, hf_aoe_major, tvb, 2, 2, FALSE);
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proto_tree_add_item(tree, hf_aoe_minor, tvb, 4, 1, FALSE);
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/* command */
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cmd=tvb_get_guint8(tvb, 5);
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proto_tree_add_item(tree, hf_aoe_cmd, tvb, 5, 1, FALSE);
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if (check_col(pinfo->cinfo, COL_INFO)) {
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col_append_fstr(pinfo->cinfo, COL_INFO, "%s %s", val_to_str(cmd, cmd_vals, "Unknown command<%d>"), (flags&AOE_FLAGS_RESPONSE)?"Response":"Request");
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}
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/* tag */
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proto_tree_add_item(tree, hf_aoe_tag, tvb, 6, 4, FALSE);
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switch(cmd){
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case AOE_CMD_ISSUE_ATA_COMMAND:
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dissect_ata_pdu(pinfo, tree, tvb, 10, flags&AOE_FLAGS_RESPONSE);
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break;
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case AOE_CMD_QUERY_CONFIG_INFO:
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break;
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}
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}
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static void
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dissect_aoe(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree)
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{
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proto_item *item=NULL;
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proto_tree *tree=NULL;
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guint8 version;
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if (check_col(pinfo->cinfo, COL_PROTOCOL))
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "AoE");
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if (check_col(pinfo->cinfo, COL_INFO))
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col_clear(pinfo->cinfo, COL_INFO);
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if (parent_tree) {
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item = proto_tree_add_item(parent_tree, proto_aoe, tvb, 0, -1, FALSE);
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tree = proto_item_add_subtree(item, ett_aoe);
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}
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version=tvb_get_guint8(tvb, 0)>>4;
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proto_tree_add_uint(tree, hf_aoe_version, tvb, 0, 1, version);
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switch(version){
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case 1:
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dissect_aoe_v1(tvb, pinfo, tree);
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break;
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}
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}
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void
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proto_register_aoe(void)
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{
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static hf_register_info hf[] = {
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{ &hf_aoe_cmd,
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{ "Command", "aoe.cmd", FT_UINT8, BASE_DEC, VALS(cmd_vals), 0x0,
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"AOE Command", HFILL}},
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{ &hf_aoe_version,
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{ "Version", "aoe.version", FT_UINT8, BASE_DEC, NULL, 0x0,
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"Version of the AOE protocol", HFILL}},
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{ &hf_aoe_error,
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{ "Error", "aoe.error", FT_UINT8, BASE_DEC, VALS(error_vals), 0x0,
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"Error code", HFILL}},
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{ &hf_aoe_err_feature,
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{ "Err/Feature", "aoe.err_feature", FT_UINT8, BASE_HEX, NULL, 0x0,
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"Err/Feature", HFILL}},
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{ &hf_aoe_sector_count,
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{ "Sector Count", "aoe.sector_count", FT_UINT8, BASE_DEC, NULL, 0x0,
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"Sector Count", HFILL}},
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{ &hf_aoe_flags_response,
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{ "Response flag", "aoe.response", FT_BOOLEAN, 8, TFS(&tfs_response), AOE_FLAGS_RESPONSE, "Whether this is a response PDU or not", HFILL}},
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{ &hf_aoe_flags_error,
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{ "Error flag", "aoe.error", FT_BOOLEAN, 8, TFS(&tfs_error), AOE_FLAGS_ERROR, "Whether this is an error PDU or not", HFILL}},
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{ &hf_aoe_major,
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{ "Major", "aoe.major", FT_UINT16, BASE_HEX, NULL, 0x0,
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"Major address", HFILL}},
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{ &hf_aoe_minor,
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{ "Minor", "aoe.minor", FT_UINT8, BASE_HEX, NULL, 0x0,
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"Minor address", HFILL}},
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{ &hf_aoe_acmd,
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{ "ATA Cmd", "aoe.ata.cmd", FT_UINT8, BASE_HEX, VALS(ata_cmd_vals), 0x0,
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"ATA command opcode", HFILL}},
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{ &hf_aoe_astatus,
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{ "ATA Status", "aoe.ata.status", FT_UINT8, BASE_HEX, NULL, 0x0,
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"ATA status bits", HFILL}},
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{ &hf_aoe_tag,
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{ "Tag", "aoe.tag", FT_UINT32, BASE_HEX, NULL, 0x0,
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"Command Tag", HFILL}},
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{ &hf_aoe_aflags_e,
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{ "E", "aoe.aflags.e", FT_BOOLEAN, 8, TFS(&tfs_aflags_e), AOE_AFLAGS_E, "Whether this is a normal or LBA48 command", HFILL}},
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{ &hf_aoe_aflags_d,
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{ "D", "aoe.aflags.d", FT_BOOLEAN, 8, TFS(&tfs_aflags_d), AOE_AFLAGS_D, "", HFILL}},
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{ &hf_aoe_aflags_a,
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{ "A", "aoe.aflags.a", FT_BOOLEAN, 8, TFS(&tfs_aflags_a), AOE_AFLAGS_A, "Whether this is an asynchronous write or not", HFILL}},
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{ &hf_aoe_aflags_w,
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{ "W", "aoe.aflags.w", FT_BOOLEAN, 8, TFS(&tfs_aflags_w), AOE_AFLAGS_W, "Is this a command writing data to the device or not", HFILL}},
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{ &hf_aoe_lba,
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{ "Lba", "aoe.lba", FT_UINT64, BASE_HEX, NULL, 0x00, "Lba address", HFILL}},
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};
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static gint *ett[] = {
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&ett_aoe,
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};
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proto_aoe = proto_register_protocol("ATAoverEthernet", "AOE", "aoe");
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proto_register_field_array(proto_aoe, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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register_dissector("aoe", dissect_aoe, proto_aoe);
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}
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void
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proto_reg_handoff_aoe(void)
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{
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dissector_handle_t aoe_handle;
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aoe_handle = find_dissector("aoe");
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dissector_add("ethertype", ETHERTYPE_AOE, aoe_handle);
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}
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