157 lines
4.1 KiB
C
157 lines
4.1 KiB
C
/* packet-hci_h1.c
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* Routines for the Bluetooth HCI h1 dissection
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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 <epan/packet.h>
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static int proto_hci_h1 = -1;
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static int hf_hci_h1_type = -1;
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static int hf_hci_h1_direction = -1;
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static gint ett_hci_h1 = -1;
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static dissector_table_t hci_h1_table;
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static dissector_handle_t data_handle;
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static const value_string hci_h1_type_vals[] = {
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{BTHCI_CHANNEL_COMMAND, "HCI Command"},
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{BTHCI_CHANNEL_ACL, "ACL Data"},
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{BTHCI_CHANNEL_SCO, "SCO Data"},
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{BTHCI_CHANNEL_EVENT, "HCI Event"},
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{0, NULL }
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};
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static const value_string hci_h1_direction_vals[] = {
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{-1, "Unknown"},
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{0, "Sent"},
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{1, "Rcvd"},
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{0, NULL}
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};
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static void
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dissect_hci_h1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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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_h1_tree=NULL;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "HCI");
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col_clear(pinfo->cinfo, COL_INFO);
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type = pinfo->pseudo_header->bthci.channel;
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if(tree){
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ti = proto_tree_add_item(tree, proto_hci_h1, tvb, 0, 0, FALSE);
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hci_h1_tree = proto_item_add_subtree(ti, ett_hci_h1);
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if(pinfo->p2p_dir == P2P_DIR_SENT ||
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pinfo->p2p_dir == P2P_DIR_RECV)
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proto_item_append_text(hci_h1_tree, " %s %s",
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match_strval(pinfo->p2p_dir,
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hci_h1_direction_vals),
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val_to_str(type,
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hci_h1_type_vals,
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"Unknown 0x%02x"));
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else
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proto_item_append_text(hci_h1_tree, " %s",
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val_to_str(type,
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hci_h1_type_vals,
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"Unknown 0x%02x"));
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}
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if(check_col(pinfo->cinfo, COL_INFO)){
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if(pinfo->p2p_dir == P2P_DIR_SENT ||
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pinfo->p2p_dir == P2P_DIR_RECV)
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col_add_fstr(pinfo->cinfo, COL_INFO, "%s %s",
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match_strval(pinfo->p2p_dir,
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hci_h1_direction_vals),
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val_to_str(type, hci_h1_type_vals,
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"Unknown 0x%02x"));
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else
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col_add_fstr(pinfo->cinfo, COL_INFO, "%s",
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val_to_str(type, hci_h1_type_vals,
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"Unknown 0x%02x"));
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}
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ti=proto_tree_add_int(hci_h1_tree, hf_hci_h1_direction, tvb, 0, 0, pinfo->p2p_dir);
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PROTO_ITEM_SET_GENERATED(ti);
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next_tvb = tvb_new_subset(tvb, 0, -1, -1);
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if(!dissector_try_port(hci_h1_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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}
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void
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proto_register_hci_h1(void)
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{
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static hf_register_info hf[] = {
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{ &hf_hci_h1_type,
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{ "HCI Packet Type", "hci_h1.type",
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FT_UINT8, BASE_HEX, VALS(hci_h1_type_vals), 0x0,
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NULL, HFILL }},
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{ &hf_hci_h1_direction,
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{ "Direction", "hci_h1.direction",
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FT_INT8, BASE_DEC, VALS(hci_h1_direction_vals), 0x0,
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"HCI Packet Direction Sent/Rcvd/Unknown", HFILL }},
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};
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static gint *ett[] = {
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&ett_hci_h1,
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};
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proto_hci_h1 = proto_register_protocol("Bluetooth HCI",
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"HCI_H1", "hci_h1");
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register_dissector("hci_h1", dissect_hci_h1, proto_hci_h1);
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proto_register_field_array(proto_hci_h1, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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hci_h1_table = register_dissector_table("hci_h1.type",
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"HCI h1 pdu type", FT_UINT8, BASE_HEX);
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}
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void
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proto_reg_handoff_hci_h1(void)
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{
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dissector_handle_t hci_h1_handle;
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data_handle = find_dissector("data");
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hci_h1_handle = find_dissector("hci_h1");
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dissector_add("wtap_encap", WTAP_ENCAP_BLUETOOTH_HCI, hci_h1_handle);
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}
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