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/* isi-nameservice.c
* Dissector for ISI's Name Service resource
* Copyright 2011, Klaus Kurzmann <mok@fluxnetz.de>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include <epan/prefs.h>
#include <epan/packet.h>
#include <epan/expert.h>
#include "packet-isi.h"
#include "isi-nameservice.h"
static const value_string isi_nameservice_id[] = {
{0x01, "PNS_NAME_QUERY_REQ"},
{0x02, "PNS_NAME_QUERY_RESP"},
{0x03, "PNS_NAME_ADD_IND"},
{0x04, "PNS_NAME_REMOVE_IND"},
{0x05, "PNS_NAME_ADD_REQ"},
{0x06, "PNS_NAME_ADD_RESP"},
{0x07, "PNS_NAME_REMOVE_REQ"},
{0x08, "PNS_NAME_REMOVE_RESP"},
{0x00, NULL}
};
static const value_string isi_nameservice_reason[] = {
{0x00, "PN_NAME_OK"},
{0x01, "PN_NAME_NOT_ALLOWED"},
{0x02, "PN_NAME_NO_ROOM"},
{0x03, "PN_NAME_UNKNOWN"},
};
static dissector_handle_t isi_nameservice_handle;
static void dissect_isi_nameservice(tvbuff_t *tvb, packet_info *pinfo, proto_item *tree);
static gint32 hf_isi_nameservice_cmd = -1;
static gint32 hf_isi_nameservice_name = -1;
static gint32 hf_isi_nameservice_dev = -1;
static gint32 hf_isi_nameservice_obj = -1;
static gint32 hf_isi_nameservice_flags = -1;
static gint32 hf_isi_nameservice_reason = -1;
static gint32 hf_isi_nameservice_bitmask = -1;
static gint32 hf_isi_nameservice_matches_total = -1;
static gint32 hf_isi_nameservice_matches = -1;
void proto_reg_handoff_isi_nameservice(void) {
static gboolean initialized=FALSE;
if(!initialized) {
isi_nameservice_handle = create_dissector_handle(dissect_isi_nameservice, proto_isi);
dissector_add("isi.resource", 0xdb, isi_nameservice_handle);
}
}
void proto_register_isi_nameservice(void) {
static hf_register_info hf[] = {
{ &hf_isi_nameservice_cmd,
{ "Command", "isi.nameservice.cmd", FT_UINT8, BASE_HEX, isi_nameservice_id, 0x0, "Command", HFILL }},
{ &hf_isi_nameservice_name,
{ "Name", "isi.nameservice.name", FT_UINT32, BASE_HEX, NULL, 0x0, "Name", HFILL }},
{ &hf_isi_nameservice_dev,
{ "Dev", "isi.nameservice.dev", FT_UINT8, BASE_HEX, NULL, 0x0, "Dev", HFILL }},
{ &hf_isi_nameservice_obj,
{ "Object", "isi.nameservice.obj", FT_UINT8, BASE_HEX, NULL, 0x0, "Object", HFILL }},
{ &hf_isi_nameservice_flags,
{ "Flags", "isi.nameservice.flags", FT_UINT8, BASE_HEX, NULL, 0x0, "Flags", HFILL }},
{ &hf_isi_nameservice_reason,
{ "Reason", "isi.nameservice.reason", FT_UINT8, BASE_HEX, isi_nameservice_reason, 0x0, "Reason", HFILL }},
{ &hf_isi_nameservice_bitmask,
{ "Bitmask", "isi.nameservice.bitmask", FT_UINT32, BASE_HEX, NULL, 0x0, "Bitmask", HFILL }},
{ &hf_isi_nameservice_matches_total,
{ "Total Matches", "isi.nameservice.total_matches", FT_UINT16, BASE_DEC, NULL, 0x0, "Matches", HFILL }},
{ &hf_isi_nameservice_matches,
{ "Matches in Message", "isi.nameservice.matches_in_message", FT_UINT16, BASE_DEC, NULL, 0x0, "Matches", HFILL }}
};
proto_register_field_array(proto_isi, hf, array_length(hf));
register_dissector("isi.nameservice", dissect_isi_nameservice, proto_isi);
}
static void dissect_isi_nameservice_name(guint32 count, guint32 offset, tvbuff_t *tvb, packet_info *pinfo, proto_item *tree) {
guint32 nr;
for(nr = 0; nr < count; nr++, count--) {
proto_item *subitem = proto_tree_add_text(tree, tvb, offset, 0x08, "Entry %d", nr + 1);
proto_tree *subtree = proto_item_add_subtree(subitem, ett_isi_msg);
proto_tree_add_item(subtree, hf_isi_nameservice_name, tvb, 3, 4, FALSE);
proto_tree_add_item(subtree, hf_isi_nameservice_dev, tvb, 8, 1, FALSE);
proto_tree_add_item(subtree, hf_isi_nameservice_obj, tvb, 9, 1, FALSE);
proto_tree_add_item(subtree, hf_isi_nameservice_flags, tvb, 10, 1, FALSE);
}
}
static void dissect_isi_nameservice(tvbuff_t *tvb, packet_info *pinfo, proto_item *isitree) {
proto_item *item = NULL;
proto_tree *tree = NULL;
guint8 cmd;
if(isitree) {
item = proto_tree_add_text(isitree, tvb, 0, -1, "Payload");
tree = proto_item_add_subtree(item, ett_isi_msg);
proto_tree_add_item(tree, hf_isi_nameservice_cmd, tvb, 0, 1, FALSE);
cmd = tvb_get_guint8(tvb, 0);
switch (cmd) {
case 0x01: /* PNS_NAME_QUERY_REQ */
col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Query Request");
proto_tree_add_item(tree, hf_isi_nameservice_name, tvb, 3, 4, FALSE);
proto_tree_add_item(tree, hf_isi_nameservice_bitmask, tvb, 8, 4, FALSE);
break;
case 0x02: /* PNS_NAME_QUERY_RESP */
col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Query Response");
proto_tree_add_item(tree, hf_isi_nameservice_matches_total, tvb, 1, 2, FALSE);
proto_tree_add_item(tree, hf_isi_nameservice_matches, tvb, 3, 2, FALSE);
dissect_isi_nameservice_name(hf_isi_nameservice_matches, 5, tvb, pinfo, tree);
break;
case 0x03: /* PNS_NAME_ADD_IND */
col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Add Indication");
proto_tree_add_item(tree, hf_isi_nameservice_matches_total, tvb, 1, 2, FALSE);
proto_tree_add_item(tree, hf_isi_nameservice_matches, tvb, 3, 2, FALSE);
dissect_isi_nameservice_name(hf_isi_nameservice_matches, 5, tvb, pinfo, tree);
break;
case 0x04: /* PNS_NAME_REMOVE_IND */
col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Remove Indication");
proto_tree_add_item(tree, hf_isi_nameservice_matches_total, tvb, 1, 2, FALSE);
proto_tree_add_item(tree, hf_isi_nameservice_matches, tvb, 3, 2, FALSE);
dissect_isi_nameservice_name(hf_isi_nameservice_matches, 5, tvb, pinfo, tree);
break;
case 0x05: /* PNS_NAME_ADD_REQ */
col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Add Request");
dissect_isi_nameservice_name(1, 5, tvb, pinfo, tree);
break;
case 0x06: /* PNS_NAME_ADD_RESPONSE */
col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Add Response");
proto_tree_add_item(tree, hf_isi_nameservice_reason, tvb, 1, 1, FALSE);
break;
case 0x07: /* PNS_NAME_REMOVE_REQ */
col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Remove Request");
proto_tree_add_item(tree, hf_isi_nameservice_name, tvb, 3, 4, FALSE);
break;
case 0x08: /* PNS_NAME_REMOVE_RESP */
col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Remove Response");
proto_tree_add_item(tree, hf_isi_nameservice_reason, tvb, 1, 1, FALSE);
break;
case 0xF0: /* COMMON_MESSAGE */
dissect_isi_common("Nameservice", tvb, pinfo, tree);
break;
default:
col_set_str(pinfo->cinfo, COL_INFO, "unknown Nameservice packet");
expert_add_info_format(pinfo, item, PI_PROTOCOL, PI_WARN, "unsupported packet");
break;
}
}
}
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