2006-05-09 09:13:20 +00:00
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/* packet-hci_h4.c
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2006-05-10 07:55:52 +00:00
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* Routines for the Bluetooth HCI H4 dissection
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2006-05-09 09:13:20 +00:00
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*
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* Copyright 2002, Christoph Scholz <scholz@cs.uni-bonn.de>
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* From: http://affix.sourceforge.net/archive/ethereal_affix-3.patch
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*
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2006-05-21 04:49:01 +00:00
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* Refactored for wireshark checkin
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2006-05-09 09:13:20 +00:00
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* Ronnie Sahlberg 2006
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*
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2006-05-09 14:32:38 +00:00
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* $Id$
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2006-05-09 09:13:20 +00:00
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*
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2006-05-21 04:49:01 +00:00
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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2006-05-09 09:13:20 +00:00
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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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2007-10-16 17:19:16 +00:00
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*
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2006-05-09 09:13:20 +00:00
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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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2007-10-16 17:19:16 +00:00
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*
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2006-05-09 09:13:20 +00:00
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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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2012-06-28 23:18:38 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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2006-05-09 09:13:20 +00:00
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*/
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#include "config.h"
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#include <epan/packet.h>
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2013-03-19 13:51:52 +00:00
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#include <epan/wmem/wmem.h>
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2006-05-09 09:13:20 +00:00
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2012-11-29 13:21:10 +00:00
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#include "packet-bluetooth-hci.h"
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2006-05-09 09:13:20 +00:00
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static int proto_hci_h4 = -1;
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static int hf_hci_h4_type = -1;
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static int hf_hci_h4_direction = -1;
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static gint ett_hci_h4 = -1;
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static dissector_table_t hci_h4_table;
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static dissector_handle_t data_handle;
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2013-06-20 16:31:53 +00:00
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static wmem_tree_t *chandle_to_bdaddr_table = NULL;
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static wmem_tree_t *bdaddr_to_name_table = NULL;
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static wmem_tree_t *localhost_name = NULL;
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static wmem_tree_t *localhost_bdaddr = NULL;
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2006-05-09 09:13:20 +00:00
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static const value_string hci_h4_type_vals[] = {
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2013-06-20 16:31:53 +00:00
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{HCI_H4_TYPE_CMD, "HCI Command"},
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{HCI_H4_TYPE_ACL, "ACL Data"},
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{HCI_H4_TYPE_SCO, "SCO Data"},
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{HCI_H4_TYPE_EVT, "HCI Event"},
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{0, NULL }
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2006-05-09 09:13:20 +00:00
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};
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static const value_string hci_h4_direction_vals[] = {
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2013-06-20 16:31:53 +00:00
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{P2P_DIR_SENT, "Sent"},
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{P2P_DIR_RECV, "Rcvd"},
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{P2P_DIR_UNKNOWN, "Unspecified"},
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{0, NULL}
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2006-05-09 09:13:20 +00:00
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};
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2013-03-19 13:51:52 +00:00
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void proto_register_hci_h4(void);
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void proto_reg_handoff_hci_h4(void);
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2006-05-09 09:13:20 +00:00
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static void
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dissect_hci_h4(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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2013-06-20 16:31:53 +00:00
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guint8 type;
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tvbuff_t *next_tvb;
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proto_item *ti = NULL;
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proto_tree *hci_h4_tree = NULL;
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void *pd_save;
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hci_data_t *hci_data;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "HCI H4");
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switch (pinfo->p2p_dir) {
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case P2P_DIR_SENT:
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col_add_fstr(pinfo->cinfo, COL_INFO, "Sent ");
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break;
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case P2P_DIR_RECV:
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col_add_fstr(pinfo->cinfo, COL_INFO, "Rcvd ");
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break;
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case P2P_DIR_UNKNOWN:
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break;
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default:
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col_add_fstr(pinfo->cinfo, COL_INFO, "Unknown direction %d ",
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pinfo->p2p_dir);
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break;
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}
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type = tvb_get_guint8(tvb, 0);
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if (tree) {
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ti = proto_tree_add_item(tree, proto_hci_h4, tvb, 0, 1, ENC_NA);
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hci_h4_tree = proto_item_add_subtree(ti, ett_hci_h4);
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}
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pd_save = pinfo->private_data;
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hci_data = (hci_data_t *) wmem_new(wmem_packet_scope(), hci_data_t);
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hci_data->interface_id = HCI_INTERFACE_H4;
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hci_data->adapter_id = HCI_ADAPTER_DEFAULT;
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hci_data->chandle_to_bdaddr_table = chandle_to_bdaddr_table;
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hci_data->bdaddr_to_name_table = bdaddr_to_name_table;
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hci_data->localhost_bdaddr = localhost_bdaddr;
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hci_data->localhost_name = localhost_name;
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pinfo->private_data = hci_data;
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ti = proto_tree_add_uint(hci_h4_tree, hf_hci_h4_direction, tvb, 0, 0, pinfo->p2p_dir);
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PROTO_ITEM_SET_GENERATED(ti);
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proto_tree_add_item(hci_h4_tree, hf_hci_h4_type,
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tvb, 0, 1, ENC_LITTLE_ENDIAN);
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col_append_fstr(pinfo->cinfo, COL_INFO, "%s",
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val_to_str(type, hci_h4_type_vals, "Unknown HCI packet type 0x%02x"));
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next_tvb = tvb_new_subset_remaining(tvb, 1);
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if (!dissector_try_uint(hci_h4_table, type, next_tvb, pinfo, tree)) {
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call_dissector(data_handle, next_tvb, pinfo, tree);
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}
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pinfo->private_data = pd_save;
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2006-05-09 09:13:20 +00:00
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}
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void
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proto_register_hci_h4(void)
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2007-10-16 17:19:16 +00:00
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{
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2013-06-20 16:31:53 +00:00
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static hf_register_info hf[] = {
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{ &hf_hci_h4_type,
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{ "HCI Packet Type", "hci_h4.type",
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FT_UINT8, BASE_HEX, VALS(hci_h4_type_vals), 0x0,
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NULL, HFILL }
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},
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{ &hf_hci_h4_direction,
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{ "Direction", "hci_h4.direction",
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FT_UINT8, BASE_HEX, VALS(hci_h4_direction_vals), 0x0,
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"HCI Packet Direction Sent/Rcvd", HFILL }
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}
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};
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static gint *ett[] = {
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&ett_hci_h4,
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};
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proto_hci_h4 = proto_register_protocol("Bluetooth HCI H4",
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"HCI_H4", "hci_h4");
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register_dissector("hci_h4", dissect_hci_h4, proto_hci_h4);
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proto_register_field_array(proto_hci_h4, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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hci_h4_table = register_dissector_table("hci_h4.type",
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"HCI H4 pdu type", FT_UINT8, BASE_HEX);
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chandle_to_bdaddr_table = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope()); /* adapter, chandle: bdaddr */
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bdaddr_to_name_table = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope()); /* bdaddr: name */
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localhost_bdaddr = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope()); /* adaper, frame: bdaddr */
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localhost_name = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope()); /* adaper, frame: name */
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2006-05-09 09:13:20 +00:00
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}
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void
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proto_reg_handoff_hci_h4(void)
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{
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2013-06-20 16:31:53 +00:00
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dissector_handle_t hci_h4_handle;
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2006-05-09 09:13:20 +00:00
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2013-06-20 16:31:53 +00:00
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data_handle = find_dissector("data");
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hci_h4_handle = find_dissector("hci_h4");
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dissector_add_uint("wtap_encap", WTAP_ENCAP_BLUETOOTH_H4, hci_h4_handle);
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dissector_add_uint("wtap_encap", WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR, hci_h4_handle);
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2006-05-09 09:13:20 +00:00
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}
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2013-06-20 16:31:53 +00:00
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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