c01f382974
svn path=/trunk/; revision=21753
194 lines
5.1 KiB
C
194 lines
5.1 KiB
C
/* packet-smrse.c
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* Routines for SMRSE Short Message Relay Service packet dissection
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* Ronnie Sahlberg 2004
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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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 <glib.h>
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#include <epan/packet.h>
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#include <epan/conversation.h>
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#include <epan/asn1.h>
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#include <stdio.h>
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#include <string.h>
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#include "packet-ber.h"
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#include "packet-smrse.h"
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#define PNAME "Short Message Relaying Service"
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#define PSNAME "SMRSE"
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#define PFNAME "smrse"
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#define TCP_PORT_SMRSE 4321
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/* Initialize the protocol and registered fields */
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int proto_smrse = -1;
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static int hf_smrse_reserved = -1;
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static int hf_smrse_tag = -1;
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static int hf_smrse_length = -1;
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static int hf_smrse_Octet_Format = -1;
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#include "packet-smrse-hf.c"
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/* Initialize the subtree pointers */
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static gint ett_smrse = -1;
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#include "packet-smrse-ett.c"
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#include "packet-smrse-fn.c"
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static const value_string tag_vals[] = {
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{ 1, "AliveTest" },
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{ 2, "AliveTestRsp" },
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{ 3, "Bind" },
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{ 4, "BindRsp" },
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{ 5, "BindFail" },
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{ 6, "Unbind" },
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{ 7, "MT" },
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{ 8, "MO" },
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{ 9, "Ack" },
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{ 10, "Error" },
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{ 11, "Alert" },
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{ 0, NULL }
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};
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static int
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dissect_smrse(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 reserved, tag;
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guint16 length;
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int offset=0;
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asn1_ctx_t asn1_ctx;
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asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
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reserved=tvb_get_guint8(tvb, 0);
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length=tvb_get_ntohs(tvb,1);
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tag=tvb_get_guint8(tvb, 3);
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if( reserved!= 126 )
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return 0;
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if( (tag<1)||(tag>11) )
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return 0;
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if(parent_tree){
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item = proto_tree_add_item(parent_tree, proto_smrse, tvb, 0, -1, FALSE);
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tree = proto_item_add_subtree(item, ett_smrse);
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}
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if (check_col(pinfo->cinfo, COL_PROTOCOL))
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "SMRSE");
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, val_to_str(tag, tag_vals,"Unknown Tag:0x%02x"));
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proto_tree_add_item(tree, hf_smrse_reserved, tvb, 0, 1, FALSE);
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proto_tree_add_item(tree, hf_smrse_length, tvb, 1, 2, FALSE);
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proto_tree_add_item(tree, hf_smrse_tag, tvb, 3, 1, FALSE);
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switch(tag){
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case 1:
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case 2:
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offset=4;
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break;
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case 3:
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offset=dissect_smrse_SMR_Bind(FALSE, tvb, 4, &asn1_ctx, tree, -1);
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break;
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case 4:
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offset=dissect_smrse_SMR_Bind_Confirm(FALSE, tvb, 4, &asn1_ctx, tree, -1);
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break;
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case 5:
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offset=dissect_smrse_SMR_Bind_Failure(FALSE, tvb, 4, &asn1_ctx, tree, -1);
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break;
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case 6:
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offset=dissect_smrse_SMR_Unbind(FALSE, tvb, 4, &asn1_ctx, tree, -1);
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break;
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case 7:
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offset=dissect_smrse_RPDataMT(FALSE, tvb, 4, &asn1_ctx, tree, -1);
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break;
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case 8:
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offset=dissect_smrse_RPDataMO(FALSE, tvb, 4, &asn1_ctx, tree, -1);
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break;
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case 9:
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offset=dissect_smrse_RPAck(FALSE, tvb, 4, &asn1_ctx, tree, -1);
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break;
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case 10:
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offset=dissect_smrse_RPError(FALSE, tvb, 4, &asn1_ctx, tree, -1);
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break;
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case 11:
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offset=dissect_smrse_RPAlertSC(FALSE, tvb, 4, &asn1_ctx, tree, -1);
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break;
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}
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return offset;
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}
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/*--- proto_register_smrse ----------------------------------------------*/
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void proto_register_smrse(void) {
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/* List of fields */
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static hf_register_info hf[] = {
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{ &hf_smrse_reserved, {
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"Reserved", "smrse.reserved", FT_UINT8, BASE_DEC,
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NULL, 0, "Reserved byte, must be 126", HFILL }},
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{ &hf_smrse_tag, {
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"Tag", "smrse.tag", FT_UINT8, BASE_DEC,
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VALS(tag_vals), 0, "Tag", HFILL }},
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{ &hf_smrse_length, {
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"Length", "smrse.length", FT_UINT16, BASE_DEC,
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NULL, 0, "Length of SMRSE PDU", HFILL }},
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{ &hf_smrse_Octet_Format,
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{ "octet-Format", "smrse.octet_Format",
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FT_STRING, BASE_HEX, NULL, 0,
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"SMS-Address/address-value/octet-format", HFILL }},
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#include "packet-smrse-hfarr.c"
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};
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/* List of subtrees */
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static gint *ett[] = {
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&ett_smrse,
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#include "packet-smrse-ettarr.c"
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};
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/* Register protocol */
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proto_smrse = proto_register_protocol(PNAME, PSNAME, PFNAME);
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/* Register fields and subtrees */
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proto_register_field_array(proto_smrse, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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/*--- proto_reg_handoff_smrse -------------------------------------------*/
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void proto_reg_handoff_smrse(void) {
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dissector_handle_t smrse_handle;
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smrse_handle = new_create_dissector_handle(dissect_smrse, proto_smrse);
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dissector_add("tcp.port",TCP_PORT_SMRSE, smrse_handle);
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}
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