143 lines
4.5 KiB
C
143 lines
4.5 KiB
C
/* isi-ss.c
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* Dissector for ISI's General Stack Server resource
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* Copyright 2010, Sebastian Reichel <sre@ring0.de>
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* Copyright 2010, Tyson Key <tyson.key@gmail.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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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 <glib.h>
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#include <epan/prefs.h>
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#include <epan/packet.h>
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#include "packet-isi.h"
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#include "isi-gss.h"
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static const value_string isi_gss_message_id[] = {
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{0x00, "GSS_CS_SERVICE_REQ"},
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{0x01, "GSS_CS_SERVICE_RESP"},
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{0x02, "GSS_CS_SERVICE_FAIL_RESP"},
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};
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static const value_string isi_gss_subblock[] = {
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{0x0B, "GSS_RAT_INFO"},
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};
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static const value_string isi_gss_operation[] = {
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{0x0E, "GSS_SELECTED_RAT_WRITE"},
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{0x9C, "GSS_SELECTED_RAT_READ"},
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};
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static dissector_handle_t isi_gss_handle;
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static void dissect_isi_gss(tvbuff_t *tvb, packet_info *pinfo, proto_item *tree);
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static guint32 hf_isi_gss_message_id = -1;
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static guint32 hf_isi_gss_subblock = -1;
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static guint32 hf_isi_gss_operation = -1;
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static guint32 hf_isi_gss_subblock_count = -1;
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void proto_reg_handoff_isi_gss(void) {
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static gboolean initialized=FALSE;
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if (!initialized) {
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isi_gss_handle = create_dissector_handle(dissect_isi_gss, proto_isi);
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dissector_add("isi.resource", 0x32, isi_gss_handle);
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}
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}
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void proto_register_isi_gss(void) {
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static hf_register_info hf[] = {
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{ &hf_isi_gss_message_id,
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{ "Message ID", "isi.gss.msg_id", FT_UINT8, BASE_HEX, isi_gss_message_id, 0x0, "Message ID", HFILL }},
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{ &hf_isi_gss_subblock,
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{ "Subblock", "isi.gss.subblock", FT_UINT8, BASE_HEX, isi_gss_subblock, 0x0, "Subblock", HFILL }},
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{ &hf_isi_gss_operation,
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{ "Operation", "isi.gss.operation", FT_UINT8, BASE_HEX, isi_gss_operation, 0x0, "Operation", HFILL }},
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{ &hf_isi_gss_subblock_count,
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{ "Subblock Count", "isi.gss.subblock_count", FT_UINT8, BASE_DEC, NULL, 0x0, "Subblock Count", HFILL }},
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};
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proto_register_field_array(proto_isi, hf, array_length(hf));
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register_dissector("isi.gss", dissect_isi_gss, proto_isi);
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}
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static void dissect_isi_gss(tvbuff_t *tvb, packet_info *pinfo, proto_item *isitree) {
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proto_item *item = NULL;
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proto_tree *tree = NULL;
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guint8 cmd, code;
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if(isitree) {
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item = proto_tree_add_text(isitree, tvb, 0, -1, "Payload");
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tree = proto_item_add_subtree(item, ett_isi_msg);
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proto_tree_add_item(tree, hf_isi_gss_message_id, tvb, 0, 1, FALSE);
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cmd = tvb_get_guint8(tvb, 0);
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switch(cmd) {
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case 0x00: /* GSS_CS_SERVICE_REQ */
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proto_tree_add_item(tree, hf_isi_gss_operation, tvb, 1, 1, FALSE);
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code = tvb_get_guint8(tvb, 1);
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switch(code) {
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case 0x0E:
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col_set_str(pinfo->cinfo, COL_INFO, "Service Request: Radio Access Type Write");
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break;
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case 0x9C:
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proto_tree_add_item(tree, hf_isi_gss_subblock_count, tvb, 2, 1, FALSE);
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col_set_str(pinfo->cinfo, COL_INFO, "Service Request: Radio Access Type Read");
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break;
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default:
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col_set_str(pinfo->cinfo, COL_INFO, "Service Request");
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break;
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}
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break;
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case 0x01: /* GSS_CS_SERVICE_RESP */
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//proto_tree_add_item(tree, hf_isi_gss_service_type, tvb, 1, 1, FALSE);
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code = tvb_get_guint8(tvb, 1);
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switch(code) {
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//case 0x2F:
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// col_set_str(pinfo->cinfo, COL_INFO, "Network Information Request: Read Home PLMN");
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// break;
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default:
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col_set_str(pinfo->cinfo, COL_INFO, "Service Response");
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break;
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}
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break;
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case 0x02: /* GSS_CS_SERVICE_FAIL_RESP */
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//proto_tree_add_item(tree, hf_isi_gss_service_type, tvb, 1, 1, FALSE);
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code = tvb_get_guint8(tvb, 1);
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switch(code) {
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//case 0x2F:
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// col_set_str(pinfo->cinfo, COL_INFO, "Network Information Request: Read Home PLMN");
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// break;
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default:
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col_set_str(pinfo->cinfo, COL_INFO, "Service Failed Response");
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break;
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}
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break;
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default:
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col_set_str(pinfo->cinfo, COL_INFO, "Unknown type");
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break;
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}
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}
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}
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