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/* packet-rmp.c
* Routines for HP remote management protocol
* Gilbert Ramirez <jochen@scram.de>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include "packet-hpext.h"
void proto_register_rmp(void);
void proto_reg_handoff_rmp(void);
static int proto_rmp = -1;
static int hf_rmp_type = -1;
static int hf_rmp_retcode = -1;
static int hf_rmp_seqnum = -1;
static int hf_rmp_sessionid = -1;
static int hf_rmp_version = -1;
static int hf_rmp_machtype = -1;
static int hf_rmp_filename = -1;
static int hf_rmp_offset = -1;
static int hf_rmp_size = -1;
static int hf_rmp_reserved = -1;
static gint ett_rmp = -1;
static dissector_handle_t rmp_handle;
/*
* Possible values for "rmp_type" fields.
*/
#define RMP_BOOT_REQ 1 /* boot request packet */
#define RMP_BOOT_REPL 129 /* boot reply packet */
#define RMP_READ_REQ 2 /* read request packet */
#define RMP_READ_REPL 130 /* read reply packet */
#define RMP_BOOT_DONE 3 /* boot complete packet */
/*
* RMP error codes
*/
#define RMP_E_OKAY 0
#define RMP_E_EOF 2 /* read reply: returned end of file */
#define RMP_E_ABORT 3 /* abort operation */
#define RMP_E_BUSY 4 /* boot reply: server busy */
#define RMP_E_TIMEOUT 5 /* lengthen time out (not implemented) */
#define RMP_E_NOFILE 16 /* boot reply: file does not exist */
#define RMP_E_OPENFILE 17 /* boot reply: file open failed */
#define RMP_E_NODFLT 18 /* boot reply: default file does not exist */
#define RMP_E_OPENDFLT 19 /* boot reply: default file open failed */
#define RMP_E_BADSID 25 /* read reply: bad session ID */
#define RMP_E_BADPACKET 27 /* Bad packet detected */
static const value_string rmp_type_vals[] = {
{ RMP_BOOT_REQ, "Boot Request" },
{ RMP_BOOT_REPL, "Boot Reply" },
{ RMP_READ_REQ, "Read Request" },
{ RMP_READ_REPL, "Read Reply" },
{ RMP_BOOT_DONE, "Boot Done" },
{ 0x00, NULL }
};
static const value_string rmp_error_vals[] = {
{ RMP_E_OKAY, "OK" },
{ RMP_E_EOF, "End Of File" },
{ RMP_E_ABORT, "Abort Operation" },
{ RMP_E_BUSY, "Server Busy" },
{ RMP_E_TIMEOUT, "Lengthen Time Out" },
{ RMP_E_NOFILE, "File Does Not Exist" },
{ RMP_E_OPENFILE, "File Open Failed" },
{ RMP_E_NODFLT, "Default File Does Not Exist" },
{ RMP_E_OPENDFLT, "Default File Open Failed" },
{ RMP_E_BADSID, "Bad Session Id" },
{ RMP_E_BADPACKET, "Bad Packet Detected" },
{ 0x00, NULL }
};
static int
dissect_rmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
proto_tree *rmp_tree = NULL;
proto_item *ti = NULL;
guint8 type, len;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "RMP");
col_clear(pinfo->cinfo, COL_INFO);
type = tvb_get_guint8(tvb, 0);
col_set_str(pinfo->cinfo, COL_INFO,
val_to_str_const(type, rmp_type_vals, "Unknown Type"));
ti = proto_tree_add_item(tree, proto_rmp, tvb, 0, -1, ENC_NA);
rmp_tree = proto_item_add_subtree(ti, ett_rmp);
proto_tree_add_uint(rmp_tree, hf_rmp_type, tvb, 0, 1, type);
switch (type) {
case RMP_BOOT_REQ:
proto_tree_add_item(rmp_tree,
hf_rmp_retcode, tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_seqnum, tvb, 2, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_sessionid, tvb, 6, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_version, tvb, 8, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_machtype, tvb, 10, 20, ENC_ASCII);
/* The remaining fields are optional */
if(!tvb_offset_exists(tvb, 30))
return 30;
len = tvb_get_guint8(tvb, 30);
proto_tree_add_item(rmp_tree,
hf_rmp_filename, tvb, 30, 1, ENC_ASCII|ENC_BIG_ENDIAN);
if(tvb_offset_exists(tvb, len+31))
call_data_dissector(tvb_new_subset_remaining(tvb, len+31),
pinfo, tree);
break;
case RMP_BOOT_REPL:
proto_tree_add_item(rmp_tree,
hf_rmp_retcode, tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_seqnum, tvb, 2, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_sessionid, tvb, 6, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_version, tvb, 8, 2, ENC_BIG_ENDIAN);
len = tvb_get_guint8(tvb, 10);
proto_tree_add_item(rmp_tree,
hf_rmp_filename, tvb, 10, 1, ENC_ASCII|ENC_BIG_ENDIAN);
if(tvb_offset_exists(tvb, len+11))
call_data_dissector(tvb_new_subset_remaining(tvb, len+11),
pinfo, tree);
break;
case RMP_READ_REQ:
proto_tree_add_item(rmp_tree,
hf_rmp_retcode, tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_offset, tvb, 2, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_sessionid, tvb, 6, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_size, tvb, 8, 2, ENC_BIG_ENDIAN);
if(tvb_offset_exists(tvb, 10))
call_data_dissector(tvb_new_subset_remaining(tvb, 10),
pinfo, tree);
break;
case RMP_READ_REPL:
proto_tree_add_item(rmp_tree,
hf_rmp_retcode, tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_offset, tvb, 2, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_sessionid, tvb, 6, 2, ENC_BIG_ENDIAN);
call_data_dissector(tvb_new_subset_remaining(tvb,
8), pinfo, rmp_tree);
break;
case RMP_BOOT_DONE:
proto_tree_add_item(rmp_tree,
hf_rmp_retcode, tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_reserved, tvb, 2, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(rmp_tree,
hf_rmp_sessionid, tvb, 6, 2, ENC_BIG_ENDIAN);
if(tvb_offset_exists(tvb, 8))
call_data_dissector(tvb_new_subset_remaining(tvb, 6),
pinfo, tree);
break;
default:
call_data_dissector(tvb_new_subset_remaining(tvb, 1), pinfo, tree);
}
return tvb_captured_length(tvb);
}
void
proto_register_rmp(void)
{
static hf_register_info hf[] = {
{ &hf_rmp_type,
{ "Type", "rmp.type", FT_UINT8, BASE_HEX,
VALS(rmp_type_vals), 0x0, NULL, HFILL }},
{ &hf_rmp_retcode,
{ "Returncode", "rmp.retcode", FT_UINT8, BASE_HEX,
VALS(rmp_error_vals), 0x0, NULL, HFILL }},
{ &hf_rmp_seqnum,
{ "Sequence Number", "rmp.seqnum", FT_UINT32, BASE_HEX,
NULL, 0x0, NULL, HFILL }},
{ &hf_rmp_sessionid,
{ "Session ID", "rmp.sessionid", FT_UINT16, BASE_HEX,
NULL, 0x0, NULL, HFILL }},
{ &hf_rmp_version,
{ "Version", "rmp.version", FT_UINT16, BASE_DEC,
NULL, 0x0, NULL, HFILL }},
{ &hf_rmp_machtype,
{ "Machine Type", "rmp.machtype", FT_STRING, BASE_NONE,
NULL, 0x0, NULL, HFILL }},
{ &hf_rmp_filename,
{ "Filename", "rmp.filename", FT_UINT_STRING, BASE_NONE,
NULL, 0x0, NULL, HFILL }},
{ &hf_rmp_offset,
{ "Offset", "rmp.offset", FT_UINT32, BASE_HEX,
NULL, 0x0, NULL, HFILL }},
{ &hf_rmp_size,
{ "Size", "rmp.size", FT_UINT16, BASE_DEC,
NULL, 0x0, NULL, HFILL }},
{ &hf_rmp_reserved,
{ "Reserved", "rmp.reserved", FT_UINT32, BASE_HEX,
NULL, 0x0, NULL, HFILL }},
};
static gint *ett[] = {
&ett_rmp,
};
proto_rmp = proto_register_protocol("HP Remote Maintenance Protocol", "RMP", "rmp");
proto_register_field_array(proto_rmp, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
rmp_handle = register_dissector("rmp", dissect_rmp, proto_rmp);
}
void
proto_reg_handoff_rmp(void)
{
dissector_add_uint("hpext.dxsap", HPEXT_DXSAP, rmp_handle);
dissector_add_uint("hpext.dxsap", HPEXT_SXSAP, rmp_handle);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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