forked from osmocom/wireshark
152 lines
4.3 KiB
C
152 lines
4.3 KiB
C
/* packet-hci_h1.c
|
|
* Routines for the Bluetooth HCI H1 dissection
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <epan/packet.h>
|
|
#include <wiretap/wtap.h>
|
|
|
|
#include "packet-bluetooth.h"
|
|
|
|
static int proto_hci_h1 = -1;
|
|
|
|
static int hf_hci_h1_direction = -1;
|
|
|
|
static gint ett_hci_h1 = -1;
|
|
|
|
static dissector_table_t hci_h1_table;
|
|
|
|
static dissector_handle_t hci_h1_handle;
|
|
|
|
static const value_string hci_h1_type_vals[] = {
|
|
{BTHCI_CHANNEL_COMMAND, "HCI Command"},
|
|
{BTHCI_CHANNEL_ACL, "ACL Data"},
|
|
{BTHCI_CHANNEL_SCO, "SCO Data"},
|
|
{BTHCI_CHANNEL_EVENT, "HCI Event"},
|
|
{BTHCI_CHANNEL_ISO, "ISO Data"},
|
|
{0, NULL }
|
|
};
|
|
static const value_string hci_h1_direction_vals[] = {
|
|
{-1, "Unknown"},
|
|
{0, "Sent"},
|
|
{1, "Rcvd"},
|
|
{0, NULL}
|
|
};
|
|
|
|
void proto_register_hci_h1(void);
|
|
void proto_reg_handoff_hci_h1(void);
|
|
|
|
static gint
|
|
dissect_hci_h1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
|
|
{
|
|
guint8 type;
|
|
tvbuff_t *next_tvb;
|
|
proto_item *ti = NULL;
|
|
proto_tree *hci_h1_tree = NULL;
|
|
bluetooth_data_t *bluetooth_data;
|
|
|
|
bluetooth_data = (bluetooth_data_t *) data;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "HCI");
|
|
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
DISSECTOR_ASSERT(bluetooth_data->previous_protocol_data_type == BT_PD_BTHCI);
|
|
type = bluetooth_data->previous_protocol_data.bthci->channel;
|
|
|
|
if (tree) {
|
|
ti = proto_tree_add_item(tree, proto_hci_h1, tvb, 0, 0, ENC_NA);
|
|
hci_h1_tree = proto_item_add_subtree(ti, ett_hci_h1);
|
|
|
|
if(pinfo->p2p_dir == P2P_DIR_SENT ||
|
|
pinfo->p2p_dir == P2P_DIR_RECV)
|
|
proto_item_append_text(hci_h1_tree, " %s %s",
|
|
val_to_str(pinfo->p2p_dir,
|
|
hci_h1_direction_vals, "Unknown: %d"),
|
|
val_to_str(type,
|
|
hci_h1_type_vals,
|
|
"Unknown 0x%02x"));
|
|
else
|
|
proto_item_append_text(hci_h1_tree, " %s",
|
|
val_to_str(type,
|
|
hci_h1_type_vals,
|
|
"Unknown 0x%02x"));
|
|
}
|
|
|
|
if(pinfo->p2p_dir == P2P_DIR_SENT ||
|
|
pinfo->p2p_dir == P2P_DIR_RECV)
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "%s %s",
|
|
val_to_str(pinfo->p2p_dir,
|
|
hci_h1_direction_vals, "Unknown: %d"),
|
|
val_to_str(type, hci_h1_type_vals,
|
|
"Unknown 0x%02x"));
|
|
else
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "%s",
|
|
val_to_str(type, hci_h1_type_vals,
|
|
"Unknown 0x%02x"));
|
|
|
|
ti = proto_tree_add_int(hci_h1_tree, hf_hci_h1_direction, tvb, 0, 0, pinfo->p2p_dir);
|
|
proto_item_set_generated(ti);
|
|
|
|
next_tvb = tvb_new_subset_remaining(tvb, 0);
|
|
if (!dissector_try_uint_new(hci_h1_table, type, next_tvb, pinfo, tree, TRUE, bluetooth_data)) {
|
|
call_data_dissector(next_tvb, pinfo, tree);
|
|
}
|
|
|
|
return tvb_reported_length(tvb);
|
|
}
|
|
|
|
|
|
void
|
|
proto_register_hci_h1(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_hci_h1_direction,
|
|
{ "Direction", "hci_h1.direction",
|
|
FT_INT8, BASE_DEC, VALS(hci_h1_direction_vals), 0x0,
|
|
"HCI Packet Direction Sent/Rcvd/Unknown", HFILL }
|
|
}
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_hci_h1,
|
|
};
|
|
|
|
proto_hci_h1 = proto_register_protocol("Bluetooth HCI H1",
|
|
"HCI_H1", "hci_h1");
|
|
|
|
hci_h1_handle = register_dissector("hci_h1", dissect_hci_h1, proto_hci_h1);
|
|
|
|
proto_register_field_array(proto_hci_h1, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
hci_h1_table = register_dissector_table("hci_h1.type",
|
|
"HCI h1 pdu type", proto_hci_h1, FT_UINT8, BASE_HEX);
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_hci_h1(void)
|
|
{
|
|
dissector_add_uint("bluetooth.encap", WTAP_ENCAP_BLUETOOTH_HCI, hci_h1_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:
|
|
*/
|