659 lines
27 KiB
C
659 lines
27 KiB
C
/* packet-btbnep.c
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* Routines for Bluetooth BNEP dissection
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*
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* Copyright 2012, Michal Labedzki for Tieto Corporation
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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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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/prefs.h>
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#include <epan/etypes.h>
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#include <epan/expert.h>
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#include "packet-bluetooth.h"
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#include "packet-btl2cap.h"
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#include "packet-btsdp.h"
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#define BNEP_TYPE_GENERAL_ETHERNET 0x00
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#define BNEP_TYPE_CONTROL 0x01
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#define BNEP_TYPE_COMPRESSED_ETHERNET 0x02
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#define BNEP_TYPE_COMPRESSED_ETHERNET_SOURCE_ONLY 0x03
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#define BNEP_TYPE_COMPRESSED_ETHERNET_DESTINATION_ONLY 0x04
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#define RESERVED_802 0x7F
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static int proto_btbnep = -1;
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static int hf_btbnep_bnep_type = -1;
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static int hf_btbnep_extension_flag = -1;
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static int hf_btbnep_extension_type = -1;
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static int hf_btbnep_extension_length = -1;
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static int hf_btbnep_dst = -1;
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static int hf_btbnep_src = -1;
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static int hf_btbnep_len = -1;
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static int hf_btbnep_invalid_lentype = -1;
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static int hf_btbnep_type = -1;
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static int hf_btbnep_addr = -1;
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static int hf_btbnep_lg = -1;
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static int hf_btbnep_ig = -1;
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static int hf_btbnep_control_type = -1;
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static int hf_btbnep_unknown_control_type = -1;
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static int hf_btbnep_uuid_size = -1;
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static int hf_btbnep_destination_service_uuid = -1;
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static int hf_btbnep_source_service_uuid = -1;
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static int hf_btbnep_setup_connection_response_message = -1;
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static int hf_btbnep_filter_net_type_response_message = -1;
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static int hf_btbnep_filter_multi_addr_response_message = -1;
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static int hf_btbnep_list_length = -1;
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static int hf_btbnep_network_type_start = -1;
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static int hf_btbnep_network_type_end = -1;
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static int hf_btbnep_multicast_address_start = -1;
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static int hf_btbnep_multicast_address_end = -1;
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static gint ett_btbnep = -1;
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static gint ett_addr = -1;
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static expert_field ei_btbnep_src_not_group_address = EI_INIT;
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static expert_field ei_btbnep_invalid_lentype = EI_INIT;
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static expert_field ei_btbnep_len_past_end = EI_INIT;
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static dissector_handle_t btbnep_handle;
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static gboolean top_dissect = TRUE;
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static dissector_handle_t llc_handle;
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static dissector_handle_t ipx_handle;
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static dissector_handle_t ethertype_handle;
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static const true_false_string ig_tfs = {
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"Group address (multicast/broadcast)",
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"Individual address (unicast)"
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};
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static const true_false_string lg_tfs = {
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"Locally administered address (this is NOT the factory default)",
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"Globally unique address (factory default)"
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};
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static const value_string bnep_type_vals[] = {
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{ 0x00, "General Ethernet" },
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{ 0x01, "Control" },
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{ 0x02, "Compressed Ethernet" },
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{ 0x03, "Compressed Ethernet Source Only" },
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{ 0x04, "Compressed Ethernet Destination Only" },
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{ 0x7F, "Reserved for 802.2 LLC Packets for IEEE 802.15.1 WG" },
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{ 0, NULL }
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};
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static const value_string control_type_vals[] = {
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{ 0x00, "Command Not Understood" },
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{ 0x01, "Setup Connection Request" },
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{ 0x02, "Setup Connection Response" },
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{ 0x03, "Filter Net Type Set" },
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{ 0x04, "Filter Net Type Response" },
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{ 0x05, "Filter Multi Addr Set" },
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{ 0x06, "Filter Multi Addr Response" },
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{ 0, NULL }
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};
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static const value_string extension_type_vals[] = {
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{ 0x00, "Extension Control" },
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{ 0, NULL }
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};
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static const value_string setup_connection_response_message_vals[] = {
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{ 0x0000, "Operation Successful" },
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{ 0x0001, "Operation FAIL: Invalid Destination Service UUID" },
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{ 0x0002, "Operation FAIL: Invalid Source Service UUID" },
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{ 0x0003, "Operation FAIL: Invalid Service UUID Size" },
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{ 0x0004, "Operation FAIL: Connection Not Allowed" },
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{ 0, NULL }
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};
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static const value_string filter_net_type_response_message_vals[] = {
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{ 0x0000, "Operation Successful" },
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{ 0x0001, "Unsupported Request" },
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{ 0x0002, "Operation FAIL: Invalid Networking Protocol Type Range" },
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{ 0x0003, "Operation FAIL: Too many filters" },
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{ 0x0004, "Operation FAIL: Unable to fulfill request due to security reasons" },
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{ 0, NULL }
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};
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static const value_string filter_multi_addr_response_message_vals[] = {
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{ 0x0000, "Operation Successful" },
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{ 0x0001, "Unsupported Request" },
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{ 0x0002, "Operation FAIL: Invalid Multicast Address" },
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{ 0x0003, "Operation FAIL: Too many filters" },
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{ 0x0004, "Operation FAIL: Unable to fulfill request due to security reasons" },
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{ 0, NULL }
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};
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void proto_register_btbnep(void);
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void proto_reg_handoff_btbnep(void);
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static int
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dissect_control(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
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{
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proto_item *pitem = NULL;
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guint control_type;
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guint8 unknown_control_type;
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guint8 uuid_size;
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guint16 uuid_dst;
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guint16 uuid_src;
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guint16 response_message;
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guint16 list_length;
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guint i_item;
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proto_tree_add_item(tree, hf_btbnep_control_type, tvb, offset, 1, ENC_BIG_ENDIAN);
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control_type = tvb_get_guint8(tvb, offset);
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offset += 1;
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col_append_fstr(pinfo->cinfo, COL_INFO, " - %s", val_to_str_const(control_type, control_type_vals, "Unknown type"));
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switch(control_type) {
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case 0x00: /* Command Not Understood */
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proto_tree_add_item(tree, hf_btbnep_unknown_control_type, tvb, offset, 1, ENC_BIG_ENDIAN);
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unknown_control_type = tvb_get_guint8(tvb, offset);
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offset += 1;
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col_append_fstr(pinfo->cinfo, COL_INFO, " - Unknown(%s)", val_to_str_const(unknown_control_type, control_type_vals, "Unknown type"));
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break;
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case 0x01: /* Setup Connection Request */
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proto_tree_add_item(tree, hf_btbnep_uuid_size, tvb, offset, 1, ENC_BIG_ENDIAN);
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uuid_size = tvb_get_guint8(tvb, offset);
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offset += 1;
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pitem = proto_tree_add_item(tree, hf_btbnep_destination_service_uuid, tvb, offset, uuid_size, ENC_NA);
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uuid_dst = tvb_get_ntohs(tvb, offset);
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proto_item_append_text(pitem, " (%s)", val_to_str_ext(uuid_dst, &bluetooth_uuid_vals_ext, "Unknown uuid"));
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offset += uuid_size;
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pitem = proto_tree_add_item(tree, hf_btbnep_source_service_uuid, tvb, offset, uuid_size, ENC_NA);
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uuid_src = tvb_get_ntohs(tvb, offset);
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proto_item_append_text(pitem, " (%s)", val_to_str_ext(uuid_src, &bluetooth_uuid_vals_ext, "Unknown uuid"));
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offset += uuid_size;
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col_append_fstr(pinfo->cinfo, COL_INFO, " - dst: <%s>, src: <%s>",
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val_to_str_ext(uuid_dst, &bluetooth_uuid_vals_ext, "Unknown uuid"),
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val_to_str_ext(uuid_src, &bluetooth_uuid_vals_ext, "Unknown uuid"));
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break;
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case 0x02: /* Setup Connection Response */
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proto_tree_add_item(tree, hf_btbnep_setup_connection_response_message, tvb, offset, 2, ENC_BIG_ENDIAN);
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response_message = tvb_get_ntohs(tvb, offset);
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offset += 2;
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col_append_fstr(pinfo->cinfo, COL_INFO, " - %s",
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val_to_str_const(response_message, setup_connection_response_message_vals, "Unknown response message"));
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break;
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case 0x03: /* Filter Net Type Set */
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proto_tree_add_item(tree, hf_btbnep_list_length, tvb, offset, 2, ENC_BIG_ENDIAN);
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list_length = tvb_get_ntohs(tvb, offset);
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offset += 2;
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for (i_item = 0; i_item + 4 > i_item && i_item < list_length; i_item += 4) {
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proto_tree_add_item(tree, hf_btbnep_network_type_start, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(tree, hf_btbnep_network_type_end, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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}
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break;
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case 0x04: /* Filter Net Type Response */
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proto_tree_add_item(tree, hf_btbnep_filter_net_type_response_message, tvb, offset, 2, ENC_BIG_ENDIAN);
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response_message = tvb_get_ntohs(tvb, offset);
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offset += 2;
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col_append_fstr(pinfo->cinfo, COL_INFO, " - %s",
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val_to_str_const(response_message, filter_net_type_response_message_vals, "Unknown response message"));
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break;
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case 0x05: /*Filter Multi Addr Set*/
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proto_tree_add_item(tree, hf_btbnep_list_length, tvb, offset, 2, ENC_BIG_ENDIAN);
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list_length = tvb_get_ntohs(tvb, offset);
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offset += 2;
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for (i_item = 0; i_item + 12 > i_item && i_item < list_length; i_item += 12) {
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proto_tree_add_item(tree, hf_btbnep_multicast_address_start, tvb, offset, FT_ETHER_LEN, ENC_NA);
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offset += FT_ETHER_LEN;
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proto_tree_add_item(tree, hf_btbnep_multicast_address_end, tvb, offset, FT_ETHER_LEN, ENC_NA);
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offset += FT_ETHER_LEN;
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}
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break;
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case 0x06: /* Filter Multi Addr Response */
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proto_tree_add_item(tree, hf_btbnep_filter_multi_addr_response_message, tvb, offset, 2, ENC_BIG_ENDIAN);
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response_message = tvb_get_ntohs(tvb, offset);
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offset += 2;
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col_append_fstr(pinfo->cinfo, COL_INFO, " - %s",
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val_to_str_const(response_message, filter_multi_addr_response_message_vals, "Unknown response message"));
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break;
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};
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return offset;
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}
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static int
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dissect_extension(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
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{
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guint8 extension_flag;
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guint8 extension_type;
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guint16 extension_length;
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guint8 type;
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proto_tree_add_item(tree, hf_btbnep_extension_type, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(tree, hf_btbnep_extension_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
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type = tvb_get_guint8(tvb, offset);
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extension_flag = type & 0x01;
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extension_type = type >> 1;
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offset += 1;
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proto_tree_add_item(tree, hf_btbnep_extension_length, tvb, offset, 1, ENC_BIG_ENDIAN);
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extension_length = tvb_get_ntohs(tvb, offset);
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offset += 2;
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if (extension_type == 0x00) {
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/* Extension Control */
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offset = dissect_control(tvb, pinfo, tree, offset);
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} else {
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offset += extension_length;
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}
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if (extension_flag) offset = dissect_extension(tvb, pinfo, tree, offset);
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return offset;
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}
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static gint
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dissect_btbnep(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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proto_item *pi;
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proto_tree *btbnep_tree;
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gint offset = 0;
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guint bnep_type;
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guint extension_flag;
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guint len_type = 0;
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proto_item *addr_item;
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proto_tree *addr_tree = NULL;
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proto_item *length_ti = NULL;
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pi = proto_tree_add_item(tree, proto_btbnep, tvb, offset, -1, ENC_NA);
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btbnep_tree = proto_item_add_subtree(pi, ett_btbnep);
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "BNEP");
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col_clear(pinfo->cinfo, COL_INFO);
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switch (pinfo->p2p_dir) {
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case P2P_DIR_SENT:
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col_set_str(pinfo->cinfo, COL_INFO, "Sent ");
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break;
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case P2P_DIR_RECV:
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col_set_str(pinfo->cinfo, COL_INFO, "Rcvd ");
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break;
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default:
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col_set_str(pinfo->cinfo, COL_INFO, "UnknownDirection ");
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break;
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}
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proto_tree_add_item(btbnep_tree, hf_btbnep_extension_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(btbnep_tree, hf_btbnep_bnep_type, tvb, offset, 1, ENC_BIG_ENDIAN);
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bnep_type = tvb_get_guint8(tvb, offset);
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extension_flag = bnep_type & 0x80;
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bnep_type = bnep_type & 0x7F;
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offset += 1;
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col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(bnep_type, bnep_type_vals, "Unknown type"));
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if (extension_flag) col_append_str(pinfo->cinfo, COL_INFO, "+E");
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if (bnep_type == BNEP_TYPE_GENERAL_ETHERNET || bnep_type == BNEP_TYPE_COMPRESSED_ETHERNET_DESTINATION_ONLY) {
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set_address_tvb(&pinfo->dl_dst, AT_ETHER, 6, tvb, offset);
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copy_address_shallow(&pinfo->dst, &pinfo->dl_dst);
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addr_item = proto_tree_add_item(btbnep_tree, hf_btbnep_dst, tvb, offset, FT_ETHER_LEN, ENC_NA);
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addr_tree = proto_item_add_subtree(addr_item, ett_addr);
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proto_tree_add_item(addr_tree, hf_btbnep_addr, tvb, offset, FT_ETHER_LEN, ENC_NA);
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proto_tree_add_item(addr_tree, hf_btbnep_lg, tvb, offset, 3, ENC_BIG_ENDIAN);
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proto_tree_add_item(addr_tree, hf_btbnep_ig, tvb, offset, 3, ENC_BIG_ENDIAN);
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offset += FT_ETHER_LEN;
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}
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if (bnep_type == BNEP_TYPE_GENERAL_ETHERNET || bnep_type == BNEP_TYPE_COMPRESSED_ETHERNET_SOURCE_ONLY) {
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set_address_tvb(&pinfo->dl_src, AT_ETHER, 6, tvb, offset);
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copy_address_shallow(&pinfo->src, &pinfo->dl_src);
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addr_item = proto_tree_add_item(btbnep_tree, hf_btbnep_src, tvb, offset, FT_ETHER_LEN, ENC_NA);
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addr_tree = proto_item_add_subtree(addr_item, ett_addr);
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if (tvb_get_guint8(tvb, offset) & 0x01) {
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expert_add_info(pinfo, addr_item, &ei_btbnep_src_not_group_address);
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}
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proto_tree_add_item(addr_tree, hf_btbnep_addr, tvb, offset, FT_ETHER_LEN, ENC_NA);
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proto_tree_add_item(addr_tree, hf_btbnep_lg, tvb, offset, 3, ENC_BIG_ENDIAN);
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proto_tree_add_item(addr_tree, hf_btbnep_ig, tvb, offset, 3, ENC_BIG_ENDIAN);
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offset += FT_ETHER_LEN;
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}
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if (bnep_type != BNEP_TYPE_CONTROL) {
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len_type = tvb_get_ntohs(tvb, offset);
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if (len_type <= IEEE_802_3_MAX_LEN) {
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/*
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* The BNEP Version 1.0 spec says, for BNEP_GENERAL_ETHERNET
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* packets, "Note: Networking Protocol Types as used in this
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* specification SHALL be taken to include values in the range
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* 0x0000-0x05dc, used to represent the IEEE802.3 length
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* interpretation of the IEEE802.3 length/type field.",
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* although it says that it's not mandatory to process
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* those packets.
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*/
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length_ti = proto_tree_add_item(btbnep_tree, hf_btbnep_len, tvb, offset, 2, ENC_BIG_ENDIAN);
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} else if (len_type < ETHERNET_II_MIN_LEN) {
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/*
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* Not a valid Ethernet length, not a valid Ethernet type.
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*/
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proto_item *ti;
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ti = proto_tree_add_item(btbnep_tree, hf_btbnep_invalid_lentype, tvb, offset, 2, ENC_BIG_ENDIAN);
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expert_add_info_format(pinfo, ti, &ei_btbnep_invalid_lentype,
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"Invalid length/type: 0x%04x (%u)",
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len_type, len_type);
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} else {
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/*
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* Ethernet type.
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*/
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if (!top_dissect)
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proto_tree_add_item(btbnep_tree, hf_btbnep_type, tvb, offset, 2, ENC_BIG_ENDIAN);
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col_append_fstr(pinfo->cinfo, COL_INFO, " - Type: %s", val_to_str_const(len_type, etype_vals, "unknown"));
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}
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offset += 2;
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} else {
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offset = dissect_control(tvb, pinfo, btbnep_tree, offset);
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}
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if (extension_flag) {
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offset = dissect_extension(tvb, pinfo, btbnep_tree, offset);
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}
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if (bnep_type != BNEP_TYPE_CONTROL) {
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/* dissect normal network */
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if (top_dissect) {
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if (len_type <= IEEE_802_3_MAX_LEN) {
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gboolean is_802_2;
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gint reported_length;
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tvbuff_t *next_tvb;
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/*
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* The BNEP Version 1.0 spec says, for BNEP_GENERAL_ETHERNET
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* packets, "Note: Networking Protocol Types as used in this
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* specification SHALL be taken to include values in the range
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* 0x0000-0x05dc, used to represent the IEEE802.3 length
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* interpretation of the IEEE802.3 length/type field.",
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* although it says that it's not mandatory to process
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* those packets.
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*/
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/*
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* Is there an 802.2 layer? I can tell by looking at the
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* first 2 bytes of the payload. If they are 0xffff, then
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* the payload is IPX.
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*
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|
* (Probably won't happen, but we might as well do this
|
|
* anyway.)
|
|
*/
|
|
is_802_2 = TRUE;
|
|
|
|
/* Don't throw an exception for this check (even a BoundsError) */
|
|
if (tvb_bytes_exist(tvb, offset, 2)) {
|
|
if (tvb_get_ntohs(tvb, offset) == 0xffff) {
|
|
is_802_2 = FALSE;
|
|
}
|
|
}
|
|
|
|
reported_length = tvb_reported_length_remaining(tvb, offset);
|
|
|
|
/*
|
|
* Make sure the length doesn't go past the end of the
|
|
* payload.
|
|
*/
|
|
if (reported_length >= 0 && len_type > (guint)reported_length) {
|
|
len_type = reported_length;
|
|
expert_add_info(pinfo, length_ti, &ei_btbnep_len_past_end);
|
|
}
|
|
|
|
/* Give the next dissector only 'len_type' number of bytes. */
|
|
next_tvb = tvb_new_subset_length(tvb, offset, len_type);
|
|
if (is_802_2) {
|
|
call_dissector(llc_handle, next_tvb, pinfo, tree);
|
|
} else {
|
|
call_dissector(ipx_handle, next_tvb, pinfo, tree);
|
|
}
|
|
} else if (len_type < ETHERNET_II_MIN_LEN) {
|
|
/*
|
|
* Not a valid packet.
|
|
*/
|
|
tvbuff_t *next_tvb;
|
|
|
|
next_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
call_data_dissector(next_tvb, pinfo, tree);
|
|
} else {
|
|
/*
|
|
* Valid Ethertype.
|
|
*/
|
|
ethertype_data_t ethertype_data;
|
|
|
|
proto_tree_add_uint(btbnep_tree, hf_btbnep_type, tvb,
|
|
offset - 2, 2, len_type);
|
|
|
|
ethertype_data.etype = len_type;
|
|
ethertype_data.payload_offset = offset;
|
|
ethertype_data.fh_tree = btbnep_tree;
|
|
ethertype_data.trailer_id = 0;
|
|
ethertype_data.fcs_len = 0;
|
|
|
|
call_dissector_with_data(ethertype_handle, tvb, pinfo, tree, ðertype_data);
|
|
}
|
|
} else {
|
|
tvbuff_t *next_tvb;
|
|
|
|
next_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
call_data_dissector(next_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
void
|
|
proto_register_btbnep(void)
|
|
{
|
|
module_t *module;
|
|
expert_module_t* expert_btbnep;
|
|
|
|
static hf_register_info hf[] = {
|
|
{ &hf_btbnep_bnep_type,
|
|
{ "BNEP Type", "btbnep.bnep_type",
|
|
FT_UINT8, BASE_HEX, VALS(bnep_type_vals), 0x7F,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_extension_flag,
|
|
{ "Extension Flag", "btbnep.extension_flag",
|
|
FT_BOOLEAN, 8, NULL, 0x80,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_control_type,
|
|
{ "Control Type", "btbnep.control_type",
|
|
FT_UINT8, BASE_HEX, VALS(control_type_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_extension_type,
|
|
{ "Extension Type", "btbnep.extension_type",
|
|
FT_UINT8, BASE_HEX, VALS(extension_type_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_extension_length,
|
|
{ "Extension Length", "btbnep.extension_length",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_unknown_control_type,
|
|
{ "Unknown Control Type", "btbnep.unknown_control_type",
|
|
FT_UINT8, BASE_HEX, VALS(control_type_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_uuid_size,
|
|
{ "UIDD Size", "btbnep.uuid_size",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_destination_service_uuid,
|
|
{ "Destination Service UUID", "btbnep.destination_service_uuid",
|
|
FT_NONE, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_source_service_uuid,
|
|
{ "Source Service UUID", "btbnep.source_service_uuid",
|
|
FT_NONE, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_setup_connection_response_message,
|
|
{ "Response Message", "btbnep.setup_connection_response_message",
|
|
FT_UINT16, BASE_HEX, VALS(setup_connection_response_message_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_filter_net_type_response_message,
|
|
{ "Response Message", "btbnep.filter_net_type_response_message",
|
|
FT_UINT16, BASE_HEX, VALS(filter_net_type_response_message_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_filter_multi_addr_response_message,
|
|
{ "Response Message", "btbnep.filter_multi_addr_response_message",
|
|
FT_UINT16, BASE_HEX, VALS(filter_multi_addr_response_message_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_list_length,
|
|
{ "List Length", "btbnep.list_length",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
/* http://www.iana.org/assignments/ethernet-numbers */
|
|
{ &hf_btbnep_network_type_start,
|
|
{ "Network Protocol Type Range Start", "btbnep.network_type_start",
|
|
FT_UINT16, BASE_HEX, VALS(etype_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_network_type_end,
|
|
{ "Network Protocol Type Range End", "btbnep.network_type_end",
|
|
FT_UINT16, BASE_HEX, VALS(etype_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_multicast_address_start,
|
|
{ "Multicast Address Start", "btbnep.multicast_address_start",
|
|
FT_ETHER, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_multicast_address_end,
|
|
{ "Multicast Address End", "btbnep.multicast_address_end",
|
|
FT_ETHER, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_dst,
|
|
{ "Destination", "btbnep.dst",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
"Destination Hardware Address", HFILL }
|
|
},
|
|
{ &hf_btbnep_src,
|
|
{ "Source", "btbnep.src",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
"Source Hardware Address", HFILL }
|
|
},
|
|
{ &hf_btbnep_len,
|
|
{ "Length", "btbnep.len",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_invalid_lentype,
|
|
{ "Invalid length/type", "btbnep.invalid_lentype",
|
|
FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_type,
|
|
{ "Type", "btbnep.type",
|
|
FT_UINT16, BASE_HEX, VALS(etype_vals), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_btbnep_addr,
|
|
{ "Address", "btbnep.addr",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
"Source or Destination Hardware Address", HFILL }
|
|
},
|
|
{ &hf_btbnep_lg,
|
|
{ "LG bit", "btbnep.lg",
|
|
FT_BOOLEAN, 24, TFS(&lg_tfs), 0x020000,
|
|
"Specifies if this is a locally administered or globally unique (IEEE assigned) address", HFILL }
|
|
},
|
|
{ &hf_btbnep_ig,
|
|
{ "IG bit", "btbnep.ig",
|
|
FT_BOOLEAN, 24, TFS(&ig_tfs), 0x010000,
|
|
"Specifies if this is an individual (unicast) or group (broadcast/multicast) address", HFILL }
|
|
}
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_btbnep,
|
|
&ett_addr
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_btbnep_src_not_group_address, { "btbnep.src.not_group_address", PI_PROTOCOL, PI_WARN, "Source MAC must not be a group address: IEEE 802.3-2002, Section 3.2.3(b)", EXPFILL }},
|
|
{ &ei_btbnep_invalid_lentype, { "btbnep.invalid_lentype.expert", PI_PROTOCOL, PI_WARN, "Invalid length/type", EXPFILL }},
|
|
{ &ei_btbnep_len_past_end, { "btbnep.len.past_end", PI_MALFORMED, PI_ERROR, "Length field value goes past the end of the payload", EXPFILL }},
|
|
};
|
|
|
|
proto_btbnep = proto_register_protocol("Bluetooth BNEP Protocol", "BT BNEP", "btbnep");
|
|
btbnep_handle = register_dissector("btbnep", dissect_btbnep, proto_btbnep);
|
|
|
|
proto_register_field_array(proto_btbnep, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_btbnep = expert_register_protocol(proto_btbnep);
|
|
expert_register_field_array(expert_btbnep, ei, array_length(ei));
|
|
|
|
module = prefs_register_protocol_subtree("Bluetooth", proto_btbnep, NULL);
|
|
prefs_register_static_text_preference(module, "bnep.version",
|
|
"Bluetooth Protocol BNEP version: 1.0",
|
|
"Version of protocol supported by this dissector.");
|
|
|
|
prefs_register_bool_preference(module, "bnep.top_dissect",
|
|
"Dissecting the top protocols", "Dissecting the top protocols",
|
|
&top_dissect);
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_btbnep(void)
|
|
{
|
|
ipx_handle = find_dissector_add_dependency("ipx", proto_btbnep);
|
|
llc_handle = find_dissector_add_dependency("llc", proto_btbnep);
|
|
ethertype_handle = find_dissector_add_dependency("ethertype", proto_btbnep);
|
|
|
|
dissector_add_string("bluetooth.uuid", "1115", btbnep_handle);
|
|
dissector_add_string("bluetooth.uuid", "1116", btbnep_handle);
|
|
dissector_add_string("bluetooth.uuid", "1117", btbnep_handle);
|
|
|
|
dissector_add_uint("btl2cap.psm", BTL2CAP_PSM_BNEP, btbnep_handle);
|
|
dissector_add_for_decode_as("btl2cap.cid", btbnep_handle);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - https://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|