diff options
Diffstat (limited to 'plugins/acn/packet-acn.c')
| -rw-r--r-- | plugins/acn/packet-acn.c | 742 |
1 files changed, 742 insertions, 0 deletions
diff --git a/plugins/acn/packet-acn.c b/plugins/acn/packet-acn.c new file mode 100644 index 0000000000..ebaa3570cb --- /dev/null +++ b/plugins/acn/packet-acn.c @@ -0,0 +1,742 @@ +/* packet-acn.c + * Routines for ACN packet disassembly + * + * $Id: packet-acn.c,v 1.1 2003/10/14 01:18:11 guy Exp $ + * + * Copyright (c) 2003 by Erwin Rol <erwin@erwinrol.com> + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * Copyright 1999 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* Include files */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "plugins/plugin_api.h" + +#include "moduleinfo.h" +#include "acn.h" + +#include <stdio.h> +#include <stdlib.h> +#include <gmodule.h> +#include <ctype.h> +#include <time.h> +#include <string.h> +#include <epan/packet.h> +#include <epan/resolv.h> +#include "prefs.h" +#include <epan/strutil.h> + +#include "plugins/plugin_api_defs.h" + +/* Define version if we are not building ethereal statically */ + +#ifndef ENABLE_STATIC +G_MODULE_EXPORT const gchar version[] = VERSION; +#endif + +/* + * See + * + * http://www.esta.org/tsp/E1-17inst.htm + */ + +static const value_string acn_proto_vals[] = { + { ACN_PDU_PROTO_UNKNOWN, "ACN Unknown Protocol"}, + { ACN_PDU_PROTO_SDT, "ACN SDT Protocol" }, + { ACN_PDU_PROTO_DMP, "ACN DMP Protocol" }, + { 0, NULL } +}; + +static const value_string acn_sdt_type_vals[] = { + { ACN_SDT_TYPE_UNKNOWN, "ACN SDT Unknown Type"}, + { ACN_SDT_TYPE_RELSEQDATA, "ACN SDT RELSEQDATA"}, + { ACN_SDT_TYPE_UNRELSEQDATA, "ACN SDT UNRELSEQDATA"}, + { ACN_SDT_TYPE_UNSEQDATA, "ACN SDT UNSEQDATA"}, + { ACN_SDT_TYPE_JOIN, "ACN SDT JOIN"}, + { ACN_SDT_TYPE_TRANSFER, "ACN SDT TRANSFER"}, + { ACN_SDT_TYPE_JOINREF, "ACN SDT JOINREF"}, + { ACN_SDT_TYPE_JOINACC, "ACN SDT JOINACC"}, + { ACN_SDT_TYPE_LEAVEREQ, "ACN SDT LEAVEREQ"}, + { ACN_SDT_TYPE_LEAVE, "ACN SDT LEAVE"}, + { ACN_SDT_TYPE_LEAVING, "ACN SDT LEAVING"}, + { ACN_SDT_TYPE_NAKUPON, "ACN SDT NAKUPON"}, + { ACN_SDT_TYPE_NAKUPOFF, "ACN SDT NAKUPOFF"}, + { ACN_SDT_TYPE_NAKDOWNON, "ACN SDT NAKDOWNON"}, + { ACN_SDT_TYPE_NAKDOWNOFF, "ACN SDT NAKDOWNOFF"}, + { ACN_SDT_TYPE_REPLOSTSEQON, "ACN SDT REPLOSTSEQON"}, + { ACN_SDT_TYPE_REPLOSTSEQOFF, "ACN SDT REPLOSTSEQOFF"}, + { ACN_SDT_TYPE_SESSEXPIRY, "ACN SDT SESEXPIRY"}, + { ACN_SDT_TYPE_MAK, "ACN SDT MAC"}, + { ACN_SDT_TYPE_ACK, "ACN SDT ACK"}, + { ACN_SDT_TYPE_NAK, "ACN SDT NAK"}, + { ACN_SDT_TYPE_SEQLOST, "ACN SDT SEQLOST"}, + { ACN_SDT_TYPE_NAKPARAMS, "ACN SDT NAKPARAMS"}, + { 0, NULL } +}; + +static const value_string acn_dmp_type_vals[] = { + { ACN_DMP_TYPE_UNKNOWN, "ACN DMP Unknown Type"}, + { 0, NULL } +}; + +void proto_reg_handoff_acn(void); + +/* Define the acn proto */ +static int proto_acn = -1; + +/* Define the tree for acn */ +static int ett_acn = -1; + +/* PDU */ +static int hf_acn_pdu = -1; + +static int hf_acn_pdu_flags = -1; + +static int hf_acn_pdu_des = -1; +static int hf_acn_pdu_src = -1; +static int hf_acn_pdu_flag_p = -1; +static int hf_acn_pdu_flag_t = -1; +static int hf_acn_pdu_flag_res = -1; +static int hf_acn_pdu_flag_z = -1; +static int hf_acn_pdu_length = -1; + +/* PDU optional */ +static int hf_acn_pdu_ext_length_16 = -1; +static int hf_acn_pdu_ext_length_32 = -1; +static int hf_acn_pdu_source_ps = -1; +static int hf_acn_pdu_source_cid = -1; +static int hf_acn_pdu_destination_ps = -1; +static int hf_acn_pdu_destination_cid = -1; +static int hf_acn_pdu_protocol = -1; +static int hf_acn_pdu_type = -1; +static int hf_acn_pdu_type_sdt = -1; +static int hf_acn_pdu_type_dmp = -1; +static int hf_acn_pdu_data = -1; + +static int hf_acn_pdu_padding = -1; + +/* SDT */ +static int hf_acn_sdt_session_nr = -1; +static int hf_acn_sdt_tot_seq_nr = -1; +static int hf_acn_sdt_rel_seq_nr = -1; +static int hf_acn_sdt_unavailable_wrappers = -1; +static int hf_acn_sdt_refuse_code = -1; +static int hf_acn_sdt_last_rel_seq = -1; +static int hf_acn_sdt_last_rel_wrapper = -1; +static int hf_acn_sdt_session_exp_time = -1; + + +/* + * Here are the global variables associated with the preferences + * for acn + */ + +static guint global_udp_port_acn = 0; +static guint udp_port_acn = 0; + +/* A static handle for the ip dissector */ +static dissector_handle_t ip_handle; + +static guint dissect_pdu(tvbuff_t *tvb, guint offset, proto_tree *tree, acn_pdu_history_t* parent_hist, guint max_size); +static guint dissect_sdt(tvbuff_t *tvb, guint offset, proto_tree *tree, acn_pdu_history_t* parent_hist, guint max_size); +static guint dissect_dmp(tvbuff_t *tvb, guint offset, proto_tree *tree, acn_pdu_history_t* parent_hist, guint max_size); + +static guint +dissect_sdt(tvbuff_t *tvb, guint offset, proto_tree *tree, acn_pdu_history_t* parent_hist, guint max_size) +{ + proto_tree *flags_tree, *flags_item; + guint start_offset = offset; + acn_pdu_history_t hist; + guint size = 0; + + hist = *parent_hist; + + switch( parent_hist->type ) + { + case ACN_SDT_TYPE_UNKNOWN: + break; + + case ACN_SDT_TYPE_RELSEQDATA: + case ACN_SDT_TYPE_UNRELSEQDATA: + proto_tree_add_item(tree, hf_acn_sdt_session_nr, tvb, + offset, 2, FALSE); + offset += 2; + + proto_tree_add_item(tree, hf_acn_sdt_tot_seq_nr, tvb, + offset, 4, FALSE); + offset += 4; + + proto_tree_add_item(tree, hf_acn_sdt_rel_seq_nr, tvb, + offset, 4, FALSE); + offset += 4; + + proto_tree_add_item(tree, hf_acn_sdt_unavailable_wrappers, tvb, + offset, 4, FALSE); + offset += 4; + + max_size = max_size - (offset - start_offset); + while( max_size >= ACN_PDU_MIN_SIZE) { + size = dissect_pdu( tvb, offset, tree, &hist, max_size); + offset += size; + max_size -= size; + } + + size = offset - start_offset; + + break; + + case ACN_SDT_TYPE_UNSEQDATA: + proto_tree_add_item(tree, hf_acn_sdt_session_nr, tvb, + offset, 2, FALSE); + offset += 2; + + max_size = max_size - (offset - start_offset); + while( max_size >= ACN_PDU_MIN_SIZE) { + size = dissect_pdu( tvb, offset, tree, &hist, max_size); + offset += size; + max_size -= size; + } + + size = offset - start_offset; + + break; + + case ACN_SDT_TYPE_JOIN: + break; + + case ACN_SDT_TYPE_TRANSFER: + break; + + case ACN_SDT_TYPE_JOINREF: + proto_tree_add_item(tree, hf_acn_sdt_session_nr, tvb, + offset, 2, FALSE); + offset += 2; + + proto_tree_add_item(tree, hf_acn_sdt_refuse_code, tvb, + offset, 2, FALSE); + offset += 2; + + size = offset - start_offset; + break; + + case ACN_SDT_TYPE_JOINACC: + case ACN_SDT_TYPE_ACK: + proto_tree_add_item(tree, hf_acn_sdt_last_rel_seq, tvb, + offset, 4, FALSE); + offset += 4; + + size = offset - start_offset; + + break; + + case ACN_SDT_TYPE_LEAVING: + proto_tree_add_item(tree, hf_acn_sdt_last_rel_wrapper, tvb, + offset, 4, FALSE); + offset += 4; + + size = offset - start_offset; + break; + + + case ACN_SDT_TYPE_SESSEXPIRY: + proto_tree_add_item(tree, hf_acn_sdt_session_exp_time, tvb, + offset, 2, FALSE); + offset += 2; + + size = offset - start_offset; + break; + + case ACN_SDT_TYPE_MAK: + break; + + case ACN_SDT_TYPE_NAK: + break; + + case ACN_SDT_TYPE_SEQLOST: + break; + + case ACN_SDT_TYPE_NAKPARAMS: + break; + + case ACN_SDT_TYPE_LEAVEREQ: + case ACN_SDT_TYPE_LEAVE: + case ACN_SDT_TYPE_NAKUPON: + case ACN_SDT_TYPE_NAKUPOFF: + case ACN_SDT_TYPE_NAKDOWNON: + case ACN_SDT_TYPE_NAKDOWNOFF: + case ACN_SDT_TYPE_REPLOSTSEQON: + case ACN_SDT_TYPE_REPLOSTSEQOFF: + /* no data */ + break; + + default: + break; + } + + return size; +} + +static guint +dissect_dmp(tvbuff_t *tvb, guint offset, proto_tree *tree, acn_pdu_history_t* parent_hist, guint max_size) +{ + return 0; +} + +static guint +dissect_pdu(tvbuff_t *tvb, guint offset, proto_tree *tree, acn_pdu_history_t* parent_hist, guint max_size) +{ + guint size,data_size; + guint8 flags; + guint src,des; + proto_tree *ti, *si, *flags_tree, *flags_item; + guint start_offset = offset; + acn_pdu_history_t hist; + + + ti = proto_tree_add_item(tree, + hf_acn_pdu, + tvb, + offset, + 0, + FALSE); + + si = proto_item_add_subtree(ti, ett_acn); + + flags = tvb_get_guint8(tvb, offset); + flags_item = proto_tree_add_uint(si, hf_acn_pdu_flags, tvb, + offset, 1, flags); + + flags_tree=proto_item_add_subtree(flags_item, ett_acn); + + proto_tree_add_item(flags_tree, hf_acn_pdu_des, tvb, offset, 1, FALSE); + proto_tree_add_item(flags_tree, hf_acn_pdu_src, tvb, offset, 1, FALSE); + proto_tree_add_item(flags_tree, hf_acn_pdu_flag_p, tvb, offset, 1, FALSE); + proto_tree_add_item(flags_tree, hf_acn_pdu_flag_t, tvb, offset, 1, FALSE); + proto_tree_add_item(flags_tree, hf_acn_pdu_flag_res, tvb, offset, 1, FALSE); + proto_tree_add_item(flags_tree, hf_acn_pdu_flag_z, tvb, offset, 1, FALSE); + + offset += 1; + + size = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(si, hf_acn_pdu_length, tvb, + offset, 1, size); + offset += 1; + + + if( size == 0 ){ + size = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(si, hf_acn_pdu_ext_length_16, tvb, + offset, 2, size); + offset += 2; + } else if( size == 1 ){ + size = tvb_get_ntohl( tvb, offset); + proto_tree_add_uint(si, hf_acn_pdu_ext_length_32, tvb, + offset, 4, size); + offset += 4; + } + + switch( hist.source_type ) + { + case ACN_PDU_SRC_SAME: + break; + + case ACN_PDU_SRC_PS: + hist.source_type = ACN_PDU_SRC_PS; + src = tvb_get_ntohs(tvb, offset); + hist.source.ps = src; + proto_tree_add_uint(si, hf_acn_pdu_source_ps, tvb, + offset, 2, src); + offset += 2; + break; + + case ACN_PDU_SRC_CID: + hist.source_type = ACN_PDU_SRC_CID; + tvb_memcpy(tvb, hist.source.cid, offset, 16 ); + proto_tree_add_item(si, hf_acn_pdu_source_cid, tvb, + offset, 16, FALSE); + offset += 16; + break; + + case ACN_PDU_SRC_UM: + hist.source_type = ACN_PDU_SRC_UM; + break; + } + + + switch( flags & ACN_PDU_DES ) + { + case ACN_PDU_DES_SAME: + break; + + case ACN_PDU_DES_PS: + hist.destination_type = ACN_PDU_DES_PS; + des = tvb_get_ntohs(tvb, offset); + hist.destination.ps = des; + proto_tree_add_uint(si, hf_acn_pdu_destination_ps, tvb, + offset, 2, des); + offset += 2; + break; + + case ACN_PDU_DES_CID: + hist.destination_type = ACN_PDU_DES_CID; + tvb_memcpy(tvb, hist.destination.cid, offset, 16 ); + proto_tree_add_item(si, hf_acn_pdu_destination_cid, tvb, + offset, 16, FALSE); + offset += 16; + break; + + case ACN_PDU_DES_ALL: + hist.destination_type = ACN_PDU_DES_ALL; + break; + } + + if( flags & ACN_PDU_FLAG_P ) + { + hist.protocol = tvb_get_ntohs( tvb, offset ); + proto_tree_add_item(si, hf_acn_pdu_protocol, tvb, + offset, 2, TRUE ); + offset += 2; + } + + if( flags & ACN_PDU_FLAG_T ) + { + hist.type = tvb_get_ntohs( tvb, offset ); + + switch( hist.protocol ) { + case ACN_PDU_PROTO_SDT: + proto_tree_add_item(si, hf_acn_pdu_type_sdt, tvb, + offset, 2, TRUE ); + break; + + case ACN_PDU_PROTO_DMP: + proto_tree_add_item(si, hf_acn_pdu_type_dmp, tvb, + offset, 2, TRUE ); + break; + + default: + proto_tree_add_item(si, hf_acn_pdu_type, tvb, + offset, 2, TRUE ); + break; + + + + } + + offset += 2; + } + + hist = *parent_hist; + + if( flags & ACN_PDU_FLAG_Z ) + { + data_size = size - (offset - start_offset); + + switch( hist.protocol ) { + case ACN_PDU_PROTO_SDT: + dissect_sdt( tvb, offset, si, &hist, data_size); + break; + + case ACN_PDU_PROTO_DMP: + dissect_dmp( tvb, offset, si, &hist, data_size); + break; + + default: + proto_tree_add_item(si, hf_acn_pdu_data, tvb, + offset, data_size, TRUE ); + break; + } + + offset += data_size; + } + + if( size & 0x00000001 ) + { + + proto_tree_add_item(si, hf_acn_pdu_padding, tvb, + offset, 1, TRUE ); + + size += 1; + offset += 1; + } + + proto_item_set_len(si, size); + + return size; +} + +static void +dissect_acn(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { + gint offset = 0; + guint size,max_size; + acn_pdu_history_t hist; + + /* Set the protocol column */ + if(check_col(pinfo->cinfo,COL_PROTOCOL)){ + col_set_str(pinfo->cinfo,COL_PROTOCOL,"ACN"); + } + + /* Clear out stuff in the info column */ + if(check_col(pinfo->cinfo,COL_INFO)){ + col_clear(pinfo->cinfo,COL_INFO); + } + + if (tree) + { + /* history default values */ + hist.destination_type = ACN_PDU_DES_ALL; + hist.source_type = ACN_PDU_SRC_UM; + hist.protocol = ACN_PDU_PROTO_UNKNOWN; + hist.type = ACN_PDU_TYPE_UNKNOWN; + + max_size = tvb_reported_length_remaining(tvb, offset); + + while( max_size >= ACN_PDU_MIN_SIZE) { + size = dissect_pdu( tvb, offset, tree, &hist, max_size); + offset += size; + max_size -= size; + } + } +} + +void +proto_register_acn(void) { + static hf_register_info hf[] = { + /* PDU */ + { &hf_acn_pdu, + { "ACN PDU", "acn.pdu", + FT_NONE, BASE_NONE, NULL, 0, + "ACN PDU", HFILL }}, + + { &hf_acn_pdu_flags, + { "PDU Flags","acn.pdu.flags", + FT_UINT8, BASE_HEX, NULL, 0x0, + "PDU flags", HFILL }}, + + { &hf_acn_pdu_des, + { "PDU des","acn.pdu.des", + FT_UINT8, BASE_HEX, NULL, 0xC0, + "PDU des", HFILL }}, + + { &hf_acn_pdu_src, + { "PDU src","acn.pdu.src", + FT_UINT8, BASE_HEX, NULL, 0x30, + "PDU src", HFILL }}, + + { &hf_acn_pdu_flag_p, + { "PDU Flag p","acn.pdu.flag_p", + FT_UINT8, BASE_HEX, NULL, 0x08, + "PDU flag p", HFILL }}, + + { &hf_acn_pdu_flag_t, + { "PDU Flag t","acn.pdu.flag_t", + FT_UINT8, BASE_HEX, NULL, 0x04, + "PDU flag t", HFILL }}, + + { &hf_acn_pdu_flag_z, + { "PDU Flag z","acn.pdu.flag_z", + FT_UINT8, BASE_HEX, NULL, 0x01, + "PDU flag z", HFILL }}, + + { &hf_acn_pdu_flag_res, + { "PDU Flag res","acn.pdu.flag_res", + FT_UINT8, BASE_HEX, NULL, 0x02, + "PDU flag res", HFILL }}, + + { &hf_acn_pdu_length, + { "PDU Lenght","acn.pdu.length", + FT_UINT8, BASE_DEC, NULL, 0x0, + "PDU Length", HFILL }}, + + { &hf_acn_pdu_ext_length_16, + { "PDU Ext Length 16bit","acn.pdu.ext_length_16", + FT_UINT16, BASE_DEC, NULL, 0x0, + "PDU Ext Length 16bit", HFILL }}, + + { &hf_acn_pdu_ext_length_32, + { "PDU Ext Length 32bit","acn.pdu.ext_length_32", + FT_UINT32, BASE_DEC, NULL, 0x0, + "PDU Ext Length 32bit", HFILL }}, + + { &hf_acn_pdu_source_ps, + { "PDU Source PS","acn.pdu.source_ps", + FT_UINT16, BASE_HEX, NULL, 0x0, + "PDU Source", HFILL }}, + + { &hf_acn_pdu_source_cid, + { "PDU Source CID","acn.pdu.source_cid", + FT_BYTES, BASE_HEX, NULL, 0x0, + "PDU Source CID", HFILL }}, + + { &hf_acn_pdu_destination_ps, + { "PDU Destination PS","acn.pdu.destination_ps", + FT_UINT16, BASE_HEX, NULL, 0x0, + "PDU Destination PS", HFILL }}, + + { &hf_acn_pdu_destination_cid, + { "PDU Destination CID","acn.pdu.destination_cid", + FT_BYTES, BASE_HEX, NULL, 0x0, + "PDU Destination CID", HFILL }}, + + { &hf_acn_pdu_protocol, + { "PDU Protocol","acn.pdu.protocol", + FT_UINT16, BASE_HEX, VALS(acn_proto_vals), 0x0, + "PDU Protocol", HFILL }}, + + { &hf_acn_pdu_type, + { "PDU Type","acn.pdu.type", + FT_UINT16, BASE_HEX, NULL, 0x0, + "PDU Type", HFILL }}, + + { &hf_acn_pdu_type_sdt, + { "PDU Type SDT","acn.pdu.type_sdt", + FT_UINT16, BASE_HEX, VALS(acn_sdt_type_vals), 0x0, + "PDU Type SDT", HFILL }}, + + { &hf_acn_pdu_type_dmp, + { "PDU Type DMP","acn.pdu.type_dmp", + FT_UINT16, BASE_HEX, VALS(acn_dmp_type_vals), 0x0, + "PDU Type DMP", HFILL }}, + + { &hf_acn_pdu_data, + { "PDU Data","acn.pdu.data", + FT_BYTES, BASE_HEX, NULL, 0x0, + "PDU Data", HFILL }}, + + { &hf_acn_pdu_padding, + { "PDU Padding","acn.pdu.padding", + FT_UINT8, BASE_DEC, NULL, 0x0, + "PDU Padding", HFILL }}, + + { &hf_acn_sdt_session_nr, + { "PDU SDT Session Nr","acn.sdt.session_nr", + FT_UINT16, BASE_DEC, NULL, 0x0, + "PDU SDT Session Nr", HFILL }}, + + { &hf_acn_sdt_tot_seq_nr, + { "PDU SDT Total Sequence Nr","acn.sdt.tot_seq_nr", + FT_UINT32, BASE_DEC, NULL, 0x0, + "PDU SDT Total Sequence Nr", HFILL }}, + + { &hf_acn_sdt_rel_seq_nr, + { "PDU SDT Rel Seq Nr","acn.sdt.rel_seq_nr", + FT_UINT32, BASE_DEC, NULL, 0x0, + "PDU SDT Rel Sequence Nr", HFILL }}, + + { &hf_acn_sdt_unavailable_wrappers, + { "PDU SDT Unavailable Wrappers","acn.sdt.unavailable_wrappers", + FT_UINT32, BASE_DEC, NULL, 0x0, + "PDU SDT Unavailable Wrappers", HFILL }}, + + { &hf_acn_sdt_refuse_code, + { "PDU SDT Refuse code","acn.sdt.refuse_code", + FT_UINT16, BASE_DEC, NULL, 0x0, + "PDU SDT Refuse Code", HFILL }}, + + { &hf_acn_sdt_last_rel_seq, + { "PDU SDT Last reliable seq nr","acn.sdt.last_rel_seq", + FT_UINT32, BASE_DEC, NULL, 0x0, + "PDU SDT Last reliable seq nr", HFILL }}, + + { &hf_acn_sdt_last_rel_wrapper, + { "PDU SDT Last reliable Wrapper","acn.sdt.last_rel_wrapper", + FT_UINT32, BASE_DEC, NULL, 0x0, + "PDU SDT Last reliable Wrapper", HFILL }}, + + { &hf_acn_sdt_session_exp_time, + { "PDU SDT Session expire time","acn.sdt.session_exp_time", + FT_UINT16, BASE_DEC, NULL, 0x0, + "PDU SDT Session expire time", HFILL }} + + }; + + static gint *ett[] = { + &ett_acn, + }; + + module_t *acn_module; + + proto_acn = proto_register_protocol("ACN", + "ACN","acn"); + proto_register_field_array(proto_acn,hf,array_length(hf)); + proto_register_subtree_array(ett,array_length(ett)); + + acn_module = prefs_register_protocol(proto_acn, + proto_reg_handoff_acn); +#if 0 + prefs_register_uint_preference(artnet_module, "udp_port", + "ARTNET UDP Port", + "The UDP port on which " + "Art-Net " + "packets will be sent", + 10,&global_udp_port_artnet); +#endif +} + +/* The registration hand-off routing */ + +void +proto_reg_handoff_acn(void) { + static int acn_initialized = FALSE; + static dissector_handle_t acn_handle; + + ip_handle = find_dissector("ip"); + + if(!acn_initialized) { + acn_handle = create_dissector_handle(dissect_acn,proto_acn); + acn_initialized = TRUE; + } else { + dissector_delete("udp.port",udp_port_acn,acn_handle); + } + + udp_port_acn = global_udp_port_acn; + + dissector_add("udp.port",global_udp_port_acn,acn_handle); +} + +/* Start the functions we need for the plugin stuff */ + +#ifndef ENABLE_STATIC + +G_MODULE_EXPORT void +plugin_reg_handoff(void){ + proto_reg_handoff_acn(); +} + +G_MODULE_EXPORT void +plugin_init(plugin_address_table_t *pat +#ifndef PLUGINS_NEED_ADDRESS_TABLE +_U_ +#endif +){ + /* initialise the table of pointers needed in Win32 DLLs */ + plugin_address_table_init(pat); + /* register the new protocol, protocol fields, and subtrees */ + if (proto_acn == -1) { /* execute protocol initialization only once */ + proto_register_acn(); + } +} + +#endif + +/* End the functions we need for plugin stuff */ + |