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/* packet-bootparams.c
* Routines for bootparams dissection
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* Copied from packet-smb.c
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include "packet-rpc.h"
#define BOOTPARAMSPROC_NULL 0
#define BOOTPARAMSPROC_WHOAMI 1
#define BOOTPARAMSPROC_GETFILE 2
#define BOOTPARAMS_PROGRAM 100026
void proto_register_bootparams(void);
void proto_reg_handoff_bootparams(void);
static int proto_bootparams;
static int hf_bootparams_procedure_v1;
static int hf_bootparams_host;
static int hf_bootparams_domain;
static int hf_bootparams_fileid;
static int hf_bootparams_filepath;
static int hf_bootparams_hostaddr;
static int hf_bootparams_routeraddr;
static int hf_bootparams_addresstype;
static int ett_bootparams;
static const value_string addr_type[] =
{
{ 1, "IPv4-ADDR" },
{ 0, NULL }
};
static int
dissect_bp_address(tvbuff_t *tvb, int offset, proto_tree *tree, int hfindex)
{
uint32_t type;
uint32_t ipaddr;
type = tvb_get_ntohl(tvb, offset);
offset = dissect_rpc_uint32(tvb, tree, hf_bootparams_addresstype, offset);
switch(type){
case 1:
ipaddr = ((tvb_get_uint8(tvb, offset+3 )&0xff)<<24)
|((tvb_get_uint8(tvb, offset+7 )&0xff)<<16)
|((tvb_get_uint8(tvb, offset+11)&0xff)<<8 )
|((tvb_get_uint8(tvb, offset+15)&0xff) );
proto_tree_add_ipv4(tree, hfindex, tvb,
offset, 16, g_ntohl(ipaddr));
offset += 16;
break;
default:
break;
}
return offset;
}
static int
dissect_getfile_call(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
int offset = 0;
offset = dissect_rpc_string(tvb, tree, hf_bootparams_host, offset, NULL);
offset = dissect_rpc_string(tvb, tree, hf_bootparams_fileid, offset, NULL);
return offset;
}
static int
dissect_getfile_reply(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
int offset = 0;
offset = dissect_rpc_string(tvb, tree, hf_bootparams_host, offset, NULL);
offset = dissect_bp_address(tvb, offset, tree, hf_bootparams_hostaddr);
offset = dissect_rpc_string(tvb, tree, hf_bootparams_filepath, offset, NULL);
return offset;
}
static int
dissect_whoami_call(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
int offset = dissect_bp_address(tvb, 0, tree, hf_bootparams_hostaddr);
return offset;
}
static int
dissect_whoami_reply(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
int offset = 0;
offset = dissect_rpc_string(tvb, tree, hf_bootparams_host, offset, NULL);
offset = dissect_rpc_string(tvb, tree, hf_bootparams_domain, offset, NULL);
offset = dissect_bp_address(tvb, offset, tree, hf_bootparams_routeraddr);
return offset;
}
/* proc number, "proc name", dissect_request, dissect_reply */
static const vsff bootparams1_proc[] = {
{ BOOTPARAMSPROC_NULL, "NULL",
dissect_rpc_void, dissect_rpc_void },
{ BOOTPARAMSPROC_WHOAMI, "WHOAMI",
dissect_whoami_call, dissect_whoami_reply },
{ BOOTPARAMSPROC_GETFILE, "GETFILE",
dissect_getfile_call, dissect_getfile_reply },
{ 0, NULL, NULL, NULL }
};
static const value_string bootparams1_proc_vals[] = {
{ BOOTPARAMSPROC_NULL, "NULL" },
{ BOOTPARAMSPROC_WHOAMI, "WHOAMI" },
{ BOOTPARAMSPROC_GETFILE, "GETFILE" },
{ 0, NULL }
};
/* end of Bootparams version 1 */
static const rpc_prog_vers_info bootparams_vers_info[] = {
{ 1, bootparams1_proc, &hf_bootparams_procedure_v1 },
};
void
proto_register_bootparams(void)
{
static hf_register_info hf[] = {
{ &hf_bootparams_procedure_v1, {
"V1 Procedure", "bootparams.procedure_v1", FT_UINT32, BASE_DEC,
VALS(bootparams1_proc_vals), 0, NULL, HFILL }},
{ &hf_bootparams_host, {
"Client Host", "bootparams.host", FT_STRING, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_bootparams_domain, {
"Client Domain", "bootparams.domain", FT_STRING, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_bootparams_fileid, {
"File ID", "bootparams.fileid", FT_STRING, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_bootparams_filepath, {
"File Path", "bootparams.filepath", FT_STRING, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_bootparams_hostaddr, {
"Client Address", "bootparams.hostaddr", FT_IPv4, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_bootparams_routeraddr, {
"Router Address", "bootparams.routeraddr", FT_IPv4, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_bootparams_addresstype, {
"Address Type", "bootparams.type", FT_UINT32, BASE_DEC,
VALS(addr_type), 0, NULL, HFILL }},
};
static int *ett[] = {
&ett_bootparams,
};
proto_bootparams = proto_register_protocol("Boot Parameters",
"BOOTPARAMS", "bootparams");
proto_register_field_array(proto_bootparams, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_bootparams(void)
{
/* Register the protocol as RPC */
rpc_init_prog(proto_bootparams, BOOTPARAMS_PROGRAM, ett_bootparams,
G_N_ELEMENTS(bootparams_vers_info), bootparams_vers_info);
}
/*
* 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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