2006-05-27 06:10:52 +00:00
|
|
|
/* TODO mix direction bit into the chandle tree lookup so we can handle when fragments sent in both directions simultaneously on the same chandle */
|
|
|
|
|
2012-09-10 12:12:05 +00:00
|
|
|
/* packet-bthci_acl.c
|
2006-05-14 10:18:29 +00:00
|
|
|
* Routines for the Bluetooth ACL dissection
|
|
|
|
* Copyright 2002, Christoph Scholz <scholz@cs.uni-bonn.de>
|
|
|
|
* From: http://affix.sourceforge.net/archive/ethereal_affix-3.patch
|
|
|
|
*
|
2006-05-21 04:49:01 +00:00
|
|
|
* Refactored for wireshark checkin
|
2006-05-14 10:18:29 +00:00
|
|
|
* Ronnie Sahlberg 2006
|
|
|
|
*
|
|
|
|
* $Id$
|
|
|
|
*
|
2006-05-21 04:49:01 +00:00
|
|
|
* Wireshark - Network traffic analyzer
|
|
|
|
* By Gerald Combs <gerald@wireshark.org>
|
2006-05-14 10:18:29 +00:00
|
|
|
* Copyright 1998 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.
|
2008-04-29 15:20:19 +00:00
|
|
|
*
|
2006-05-14 10:18:29 +00:00
|
|
|
* 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.
|
2008-04-29 15:20:19 +00:00
|
|
|
*
|
2006-05-14 10:18:29 +00:00
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
* along with this program; if not, write to the Free Software
|
2012-06-28 23:18:38 +00:00
|
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
2006-05-14 10:18:29 +00:00
|
|
|
*/
|
|
|
|
|
2012-09-20 02:03:38 +00:00
|
|
|
#include "config.h"
|
2006-05-14 10:18:29 +00:00
|
|
|
|
|
|
|
#include <epan/packet.h>
|
2006-05-27 06:10:52 +00:00
|
|
|
#include <epan/prefs.h>
|
2012-12-02 17:01:04 +00:00
|
|
|
#include <epan/wmem/wmem.h>
|
2012-09-21 10:49:44 +00:00
|
|
|
|
2012-11-29 13:21:10 +00:00
|
|
|
#include "packet-bluetooth-hci.h"
|
2012-09-21 10:49:44 +00:00
|
|
|
#include "packet-bthci_acl.h"
|
2006-05-14 10:18:29 +00:00
|
|
|
|
|
|
|
/* Initialize the protocol and registered fields */
|
2012-09-10 12:12:05 +00:00
|
|
|
static int proto_bthci_acl = -1;
|
|
|
|
static int hf_bthci_acl_chandle = -1;
|
|
|
|
static int hf_bthci_acl_pb_flag = -1;
|
|
|
|
static int hf_bthci_acl_bc_flag = -1;
|
|
|
|
static int hf_bthci_acl_length = -1;
|
|
|
|
static int hf_bthci_acl_data = -1;
|
|
|
|
static int hf_bthci_acl_continuation_to = -1;
|
|
|
|
static int hf_bthci_acl_reassembled_in = -1;
|
2006-05-14 10:18:29 +00:00
|
|
|
|
|
|
|
/* Initialize the subtree pointers */
|
2012-09-10 12:12:05 +00:00
|
|
|
static gint ett_bthci_acl = -1;
|
2006-05-14 10:18:29 +00:00
|
|
|
|
2012-03-12 14:40:09 +00:00
|
|
|
static dissector_handle_t btl2cap_handle = NULL;
|
2006-05-14 10:18:29 +00:00
|
|
|
|
2006-05-27 06:10:52 +00:00
|
|
|
static gboolean acl_reassembly = TRUE;
|
|
|
|
|
|
|
|
typedef struct _multi_fragment_pdu_t {
|
2012-03-12 14:40:09 +00:00
|
|
|
guint32 first_frame;
|
|
|
|
guint32 last_frame;
|
|
|
|
guint16 tot_len;
|
|
|
|
char *reassembled;
|
|
|
|
int cur_off; /* counter used by reassembly */
|
2006-05-27 06:10:52 +00:00
|
|
|
} multi_fragment_pdu_t;
|
|
|
|
|
|
|
|
typedef struct _chandle_data_t {
|
2012-03-12 14:40:09 +00:00
|
|
|
emem_tree_t *start_fragments; /* indexed by pinfo->fd->num */
|
2006-05-27 06:10:52 +00:00
|
|
|
} chandle_data_t;
|
|
|
|
|
2012-03-12 14:40:09 +00:00
|
|
|
static emem_tree_t *chandle_tree = NULL;
|
2006-05-27 06:10:52 +00:00
|
|
|
|
2006-05-14 10:18:29 +00:00
|
|
|
static const value_string pb_flag_vals[] = {
|
2012-11-30 11:31:28 +00:00
|
|
|
{ 0, "First Non-automatically Flushable Packet" },
|
|
|
|
{ 1, "Continuing Fragment" },
|
|
|
|
{ 2, "First Automatically Flushable Packet" },
|
|
|
|
{ 0, NULL }
|
2006-05-14 10:18:29 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
static const value_string bc_flag_vals[] = {
|
2012-11-30 11:31:28 +00:00
|
|
|
{ 0, "Point-To-Point" },
|
|
|
|
{ 1, "Active Broadcast" },
|
|
|
|
{ 2, "Piconet Broadcast" },
|
|
|
|
{ 0, NULL }
|
2006-05-14 10:18:29 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* Code to actually dissect the packets */
|
2008-04-29 15:20:19 +00:00
|
|
|
static void
|
2012-09-10 12:12:05 +00:00
|
|
|
dissect_bthci_acl(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
2006-05-14 10:18:29 +00:00
|
|
|
{
|
2012-11-29 13:21:10 +00:00
|
|
|
proto_item *ti = NULL;
|
|
|
|
proto_tree *bthci_acl_tree = NULL;
|
|
|
|
guint16 flags;
|
|
|
|
guint16 length;
|
|
|
|
gboolean fragmented;
|
|
|
|
int offset = 0;
|
|
|
|
guint16 pb_flag, l2cap_length = 0;
|
|
|
|
tvbuff_t *next_tvb;
|
|
|
|
bthci_acl_data_t *acl_data;
|
|
|
|
chandle_data_t *chandle_data;
|
|
|
|
void *pd_save;
|
|
|
|
hci_data_t *hci_data;
|
|
|
|
emem_tree_key_t key[5];
|
|
|
|
guint32 k_connection_handle;
|
|
|
|
guint32 k_frame_number;
|
|
|
|
guint32 k_interface_id;
|
|
|
|
guint32 k_adapter_id;
|
|
|
|
remote_bdaddr_t *remote_bdaddr;
|
2012-11-30 11:31:28 +00:00
|
|
|
const gchar *localhost_name;
|
2012-11-29 13:21:10 +00:00
|
|
|
guint8 localhost_bdaddr[6];
|
2012-11-30 11:31:28 +00:00
|
|
|
const gchar *localhost_ether_addr;
|
2012-11-29 13:21:10 +00:00
|
|
|
gchar *localhost_addr_name;
|
2012-11-30 11:31:28 +00:00
|
|
|
gint localhost_length;
|
2012-11-29 13:21:10 +00:00
|
|
|
localhost_bdaddr_entry_t *localhost_bdaddr_entry;
|
|
|
|
localhost_name_entry_t *localhost_name_entry;
|
2012-03-12 14:40:09 +00:00
|
|
|
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "HCI_ACL");
|
|
|
|
|
|
|
|
if (tree) {
|
2012-09-10 12:12:05 +00:00
|
|
|
ti = proto_tree_add_item(tree, proto_bthci_acl, tvb, offset, -1, ENC_NA);
|
|
|
|
bthci_acl_tree = proto_item_add_subtree(ti, ett_bthci_acl);
|
2012-03-12 14:40:09 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
flags = tvb_get_letohs(tvb, offset);
|
|
|
|
pb_flag = (flags & 0x3000) >> 12;
|
2012-09-10 12:12:05 +00:00
|
|
|
proto_tree_add_item(bthci_acl_tree, hf_bthci_acl_chandle, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(bthci_acl_tree, hf_bthci_acl_pb_flag, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(bthci_acl_tree, hf_bthci_acl_bc_flag, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
2012-03-12 14:40:09 +00:00
|
|
|
offset += 2;
|
|
|
|
|
2012-11-29 13:21:10 +00:00
|
|
|
hci_data = (hci_data_t *) pinfo->private_data;
|
|
|
|
|
2012-03-12 14:40:09 +00:00
|
|
|
acl_data = ep_alloc(sizeof(bthci_acl_data_t));
|
2012-11-30 11:31:28 +00:00
|
|
|
acl_data->chandle = flags & 0x0fff;
|
2012-03-12 14:40:09 +00:00
|
|
|
pd_save = pinfo->private_data;
|
|
|
|
pinfo->private_data = acl_data;
|
|
|
|
|
2012-11-30 11:31:28 +00:00
|
|
|
k_interface_id = hci_data->interface_id;
|
|
|
|
k_adapter_id = hci_data->adapter_id;
|
2012-11-29 13:21:10 +00:00
|
|
|
k_connection_handle = flags & 0x0fff;
|
2012-11-30 11:31:28 +00:00
|
|
|
k_frame_number = pinfo->fd->num;
|
2012-11-29 13:21:10 +00:00
|
|
|
|
|
|
|
key[0].length = 1;
|
|
|
|
key[0].key = &k_interface_id;
|
|
|
|
key[1].length = 1;
|
|
|
|
key[1].key = &k_adapter_id;
|
|
|
|
key[2].length = 1;
|
|
|
|
key[2].key = &k_connection_handle;
|
|
|
|
key[3].length = 1;
|
|
|
|
key[3].key = &k_frame_number;
|
|
|
|
key[4].length = 0;
|
|
|
|
key[4].key = NULL;
|
|
|
|
|
|
|
|
/* remote bdaddr and name */
|
|
|
|
remote_bdaddr = se_tree_lookup32_array_le(hci_data->chandle_to_bdaddr_table, key);
|
|
|
|
if (remote_bdaddr && remote_bdaddr->interface_id == k_interface_id &&
|
|
|
|
remote_bdaddr->adapter_id == k_adapter_id &&
|
|
|
|
remote_bdaddr->chandle == (flags & 0x0fff)) {
|
|
|
|
guint32 k_bd_addr_oui;
|
|
|
|
guint32 k_bd_addr_id;
|
|
|
|
guint32 bd_addr_oui;
|
|
|
|
guint32 bd_addr_id;
|
2012-11-30 11:31:28 +00:00
|
|
|
device_name_t *device_name;
|
|
|
|
const gchar *remote_name;
|
|
|
|
const gchar *remote_ether_addr;
|
|
|
|
gchar *remote_addr_name;
|
2012-11-29 16:26:12 +00:00
|
|
|
gint remote_length;
|
2012-11-29 13:21:10 +00:00
|
|
|
|
|
|
|
bd_addr_oui = remote_bdaddr->bd_addr[0] << 16 | remote_bdaddr->bd_addr[1] << 8 | remote_bdaddr->bd_addr[2];
|
2012-11-30 11:31:28 +00:00
|
|
|
bd_addr_id = remote_bdaddr->bd_addr[3] << 16 | remote_bdaddr->bd_addr[4] << 8 | remote_bdaddr->bd_addr[5];
|
2012-11-29 13:21:10 +00:00
|
|
|
k_bd_addr_oui = bd_addr_oui;
|
2012-11-30 11:31:28 +00:00
|
|
|
k_bd_addr_id = bd_addr_id;
|
2012-11-29 13:21:10 +00:00
|
|
|
|
|
|
|
key[0].length = 1;
|
|
|
|
key[0].key = &k_bd_addr_id;
|
|
|
|
key[1].length = 1;
|
|
|
|
key[1].key = &k_bd_addr_oui;
|
|
|
|
key[2].length = 1;
|
|
|
|
key[2].key = &k_frame_number;
|
|
|
|
key[3].length = 0;
|
|
|
|
key[3].key = NULL;
|
|
|
|
|
|
|
|
device_name = se_tree_lookup32_array_le(hci_data->bdaddr_to_name_table, key);
|
|
|
|
if (device_name && device_name->bd_addr_oui == bd_addr_oui && device_name->bd_addr_id == bd_addr_id)
|
|
|
|
remote_name = device_name->name;
|
|
|
|
else
|
|
|
|
remote_name = "";
|
|
|
|
|
|
|
|
remote_ether_addr = get_ether_name(remote_bdaddr->bd_addr);
|
2012-11-29 16:26:12 +00:00
|
|
|
remote_length = (gint)(strlen(remote_ether_addr) + 3 + strlen(remote_name) + 1);
|
2012-12-02 17:01:04 +00:00
|
|
|
remote_addr_name = wmem_alloc(pinfo->pool, remote_length);
|
2012-11-29 13:21:10 +00:00
|
|
|
|
|
|
|
g_snprintf(remote_addr_name, remote_length, "%s (%s)", remote_ether_addr, remote_name);
|
|
|
|
|
|
|
|
if (pinfo->p2p_dir == P2P_DIR_RECV) {
|
2012-12-26 15:28:28 +00:00
|
|
|
SET_ADDRESS(&pinfo->net_src, AT_STRINGZ, (int)strlen(remote_name) + 1, remote_name);
|
2012-11-29 13:21:10 +00:00
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, remote_bdaddr->bd_addr);
|
2012-12-26 15:28:28 +00:00
|
|
|
SET_ADDRESS(&pinfo->src, AT_STRINGZ, (int)strlen(remote_addr_name) + 1, remote_addr_name);
|
2012-11-29 13:21:10 +00:00
|
|
|
} else if (pinfo->p2p_dir == P2P_DIR_SENT) {
|
2012-12-26 15:28:28 +00:00
|
|
|
SET_ADDRESS(&pinfo->net_dst, AT_STRINGZ, (int)strlen(remote_name) + 1, remote_name);
|
2012-11-29 13:21:10 +00:00
|
|
|
SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, remote_bdaddr->bd_addr);
|
2012-12-26 15:28:28 +00:00
|
|
|
SET_ADDRESS(&pinfo->dst, AT_STRINGZ, (int)strlen(remote_addr_name) + 1, remote_addr_name);
|
2012-11-29 13:21:10 +00:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (pinfo->p2p_dir == P2P_DIR_RECV) {
|
2012-12-26 15:28:28 +00:00
|
|
|
SET_ADDRESS(&pinfo->net_src, AT_STRINGZ, 1, "");
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_STRINGZ, 1, "");
|
|
|
|
SET_ADDRESS(&pinfo->src, AT_STRINGZ, 10, "remote ()");
|
2012-11-29 13:21:10 +00:00
|
|
|
} else if (pinfo->p2p_dir == P2P_DIR_SENT) {
|
2012-12-26 15:28:28 +00:00
|
|
|
SET_ADDRESS(&pinfo->net_dst, AT_STRINGZ, 1, "");
|
|
|
|
SET_ADDRESS(&pinfo->dl_dst, AT_STRINGZ, 1, "");
|
|
|
|
SET_ADDRESS(&pinfo->dst, AT_STRINGZ, 10, "remote ()");
|
2012-11-29 13:21:10 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* localhost bdaddr and name */
|
|
|
|
key[0].length = 1;
|
|
|
|
key[0].key = &k_interface_id;
|
|
|
|
key[1].length = 1;
|
|
|
|
key[1].key = &k_adapter_id;
|
|
|
|
key[2].length = 1;
|
|
|
|
key[2].key = &k_frame_number;
|
|
|
|
key[3].length = 0;
|
|
|
|
key[3].key = NULL;
|
|
|
|
|
|
|
|
|
|
|
|
localhost_bdaddr_entry = se_tree_lookup32_array_le(hci_data->localhost_bdaddr, key);
|
|
|
|
if (localhost_bdaddr_entry && localhost_bdaddr_entry->interface_id == k_interface_id &&
|
|
|
|
localhost_bdaddr_entry->adapter_id == k_adapter_id)
|
|
|
|
localhost_ether_addr = get_ether_name(localhost_bdaddr_entry->bd_addr);
|
|
|
|
else
|
|
|
|
localhost_ether_addr = "localhost";
|
|
|
|
|
|
|
|
localhost_name_entry = se_tree_lookup32_array_le(hci_data->localhost_name, key);
|
|
|
|
if (localhost_name_entry && localhost_name_entry->interface_id == k_interface_id &&
|
|
|
|
localhost_name_entry->adapter_id == k_adapter_id)
|
|
|
|
localhost_name = localhost_name_entry->name;
|
|
|
|
else
|
2012-11-30 11:31:28 +00:00
|
|
|
localhost_name = "";
|
2012-11-29 13:21:10 +00:00
|
|
|
|
2012-11-29 16:26:12 +00:00
|
|
|
localhost_length = (gint)(strlen(localhost_ether_addr) + 3 + strlen(localhost_name) + 1);
|
2012-12-02 17:01:04 +00:00
|
|
|
localhost_addr_name = wmem_alloc(pinfo->pool, localhost_length);
|
2012-11-29 13:21:10 +00:00
|
|
|
|
|
|
|
g_snprintf(localhost_addr_name, localhost_length, "%s (%s)", localhost_ether_addr, localhost_name);
|
|
|
|
|
|
|
|
if (pinfo->p2p_dir == P2P_DIR_RECV) {
|
2012-12-26 15:28:28 +00:00
|
|
|
SET_ADDRESS(&pinfo->net_dst, AT_STRINGZ, (int)strlen(localhost_name) + 1, localhost_name);
|
2012-11-29 13:21:10 +00:00
|
|
|
SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, localhost_bdaddr);
|
2012-12-26 15:28:28 +00:00
|
|
|
SET_ADDRESS(&pinfo->dst, AT_STRINGZ, (int)strlen(localhost_addr_name) + 1, localhost_addr_name);
|
2012-11-29 13:21:10 +00:00
|
|
|
} else if (pinfo->p2p_dir == P2P_DIR_SENT) {
|
2012-12-26 15:28:28 +00:00
|
|
|
SET_ADDRESS(&pinfo->net_src, AT_STRINGZ, (int)strlen(localhost_name) + 1, localhost_name);
|
2012-11-29 13:21:10 +00:00
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, localhost_bdaddr);
|
2012-12-26 15:28:28 +00:00
|
|
|
SET_ADDRESS(&pinfo->src, AT_STRINGZ, (int)strlen(localhost_addr_name) + 1, localhost_addr_name);
|
2012-11-29 13:21:10 +00:00
|
|
|
}
|
|
|
|
|
2012-03-12 14:40:09 +00:00
|
|
|
/* find the chandle_data structure associated with this chandle */
|
|
|
|
chandle_data = se_tree_lookup32(chandle_tree, acl_data->chandle);
|
|
|
|
if (!chandle_data) {
|
|
|
|
chandle_data = se_alloc(sizeof(chandle_data_t));
|
|
|
|
chandle_data->start_fragments = se_tree_create_non_persistent(EMEM_TREE_TYPE_RED_BLACK, "bthci_acl fragment starts");
|
|
|
|
se_tree_insert32(chandle_tree, acl_data->chandle, chandle_data);
|
|
|
|
}
|
|
|
|
|
|
|
|
length = tvb_get_letohs(tvb, offset);
|
2012-09-10 12:12:05 +00:00
|
|
|
proto_tree_add_item(bthci_acl_tree, hf_bthci_acl_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
2012-11-30 11:31:28 +00:00
|
|
|
offset += 2;
|
2012-03-12 14:40:09 +00:00
|
|
|
|
|
|
|
/* determine if packet is fragmented */
|
|
|
|
switch(pb_flag) {
|
|
|
|
case 0x01: /* Continuation fragment */
|
|
|
|
fragmented = TRUE;
|
|
|
|
break;
|
|
|
|
case 0x00: /* First fragment/packet, non-auto flushable */
|
|
|
|
case 0x02: /* First fragment/packet, auto flushable */
|
|
|
|
l2cap_length = tvb_get_letohs(tvb, offset);
|
2012-11-30 11:31:28 +00:00
|
|
|
fragmented = (l2cap_length + 4 != length);
|
2012-03-12 14:40:09 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
/* unknown pb_flag */
|
|
|
|
fragmented = FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-11-30 11:31:28 +00:00
|
|
|
if (!fragmented || (!acl_reassembly && !(pb_flag & 0x01))) {
|
2012-03-12 14:40:09 +00:00
|
|
|
/* call L2CAP dissector for PDUs that are not fragmented
|
|
|
|
* also for the first fragment if reassembly is disabled
|
|
|
|
*/
|
|
|
|
next_tvb = tvb_new_subset(tvb, offset, tvb_length_remaining(tvb, offset), length);
|
|
|
|
if (btl2cap_handle) {
|
|
|
|
call_dissector(btl2cap_handle, next_tvb, pinfo, tree);
|
|
|
|
}
|
|
|
|
pinfo->private_data = pd_save;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fragmented && acl_reassembly) {
|
|
|
|
multi_fragment_pdu_t *mfp = NULL;
|
|
|
|
gint len;
|
|
|
|
|
2012-11-30 11:31:28 +00:00
|
|
|
if (!(pb_flag & 0x01)) { /* first fragment */
|
2012-03-12 14:40:09 +00:00
|
|
|
if (!pinfo->fd->flags.visited) {
|
|
|
|
mfp = se_alloc(sizeof(multi_fragment_pdu_t));
|
|
|
|
mfp->first_frame = pinfo->fd->num;
|
|
|
|
mfp->last_frame = 0;
|
2012-11-30 11:31:28 +00:00
|
|
|
mfp->tot_len = l2cap_length + 4;
|
2012-03-12 14:40:09 +00:00
|
|
|
mfp->reassembled = se_alloc(mfp->tot_len);
|
|
|
|
len = tvb_length_remaining(tvb, offset);
|
|
|
|
if (len <= mfp->tot_len) {
|
2012-11-30 11:31:28 +00:00
|
|
|
tvb_memcpy(tvb, (guint8 *) mfp->reassembled, offset, len);
|
2012-03-12 14:40:09 +00:00
|
|
|
mfp->cur_off = len;
|
|
|
|
se_tree_insert32(chandle_data->start_fragments, pinfo->fd->num, mfp);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
mfp = se_tree_lookup32(chandle_data->start_fragments, pinfo->fd->num);
|
|
|
|
}
|
|
|
|
if (mfp != NULL && mfp->last_frame) {
|
|
|
|
proto_item *item;
|
2012-11-30 11:31:28 +00:00
|
|
|
|
2012-09-10 12:12:05 +00:00
|
|
|
item = proto_tree_add_uint(bthci_acl_tree, hf_bthci_acl_reassembled_in, tvb, 0, 0, mfp->last_frame);
|
2012-03-12 14:40:09 +00:00
|
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " [Reassembled in #%u]", mfp->last_frame);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (pb_flag == 0x01) { /* continuation fragment */
|
|
|
|
mfp = se_tree_lookup32_le(chandle_data->start_fragments, pinfo->fd->num);
|
|
|
|
if (!pinfo->fd->flags.visited) {
|
|
|
|
len = tvb_length_remaining(tvb, offset);
|
2012-11-30 11:31:28 +00:00
|
|
|
if (mfp != NULL && !mfp->last_frame && (mfp->tot_len >= mfp->cur_off + len)) {
|
|
|
|
tvb_memcpy(tvb, (guint8 *) mfp->reassembled + mfp->cur_off, offset, len);
|
|
|
|
mfp->cur_off += len;
|
2012-03-12 14:40:09 +00:00
|
|
|
if (mfp->cur_off == mfp->tot_len) {
|
|
|
|
mfp->last_frame = pinfo->fd->num;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (mfp) {
|
|
|
|
proto_item *item;
|
2012-11-30 11:31:28 +00:00
|
|
|
|
2012-09-10 12:12:05 +00:00
|
|
|
item = proto_tree_add_uint(bthci_acl_tree, hf_bthci_acl_continuation_to, tvb, 0, 0, mfp->first_frame);
|
2012-03-12 14:40:09 +00:00
|
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " [Continuation to #%u]", mfp->first_frame);
|
|
|
|
}
|
|
|
|
if (mfp != NULL && mfp->last_frame == pinfo->fd->num) {
|
2012-11-30 11:31:28 +00:00
|
|
|
next_tvb = tvb_new_child_real_data(tvb, (guint8 *) mfp->reassembled, mfp->tot_len, mfp->tot_len);
|
2012-03-12 14:40:09 +00:00
|
|
|
add_new_data_source(pinfo, next_tvb, "Reassembled BTHCI ACL");
|
|
|
|
|
|
|
|
/* call L2CAP dissector */
|
|
|
|
if (btl2cap_handle) {
|
|
|
|
call_dissector(btl2cap_handle, next_tvb, pinfo, tree);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
pinfo->private_data = pd_save;
|
2006-05-14 10:18:29 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
2012-09-10 12:12:05 +00:00
|
|
|
proto_register_bthci_acl(void)
|
2008-04-29 15:20:19 +00:00
|
|
|
{
|
2006-05-14 10:18:29 +00:00
|
|
|
|
2012-03-12 14:40:09 +00:00
|
|
|
/* Setup list of header fields See Section 1.6.1 for details*/
|
|
|
|
static hf_register_info hf[] = {
|
2012-09-10 12:12:05 +00:00
|
|
|
{ &hf_bthci_acl_chandle,
|
|
|
|
{ "Connection Handle", "bthci_acl.chandle",
|
2012-03-12 14:40:09 +00:00
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0FFF,
|
|
|
|
NULL, HFILL }
|
|
|
|
},
|
2012-09-10 12:12:05 +00:00
|
|
|
{ &hf_bthci_acl_pb_flag,
|
|
|
|
{ "PB Flag", "bthci_acl.pb_flag",
|
2012-03-12 14:40:09 +00:00
|
|
|
FT_UINT16, BASE_DEC, VALS(pb_flag_vals), 0x3000,
|
|
|
|
"Packet Boundary Flag", HFILL }
|
|
|
|
},
|
2012-09-10 12:12:05 +00:00
|
|
|
{ &hf_bthci_acl_bc_flag,
|
|
|
|
{ "BC Flag", "bthci_acl.bc_flag",
|
2012-03-12 14:40:09 +00:00
|
|
|
FT_UINT16, BASE_DEC, VALS(bc_flag_vals), 0xC000,
|
|
|
|
"Broadcast Flag", HFILL }
|
|
|
|
},
|
2012-09-10 12:12:05 +00:00
|
|
|
{ &hf_bthci_acl_length,
|
|
|
|
{ "Data Total Length", "bthci_acl.length",
|
2012-03-12 14:40:09 +00:00
|
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
|
|
NULL, HFILL }
|
|
|
|
},
|
2012-09-10 12:12:05 +00:00
|
|
|
{ &hf_bthci_acl_data,
|
|
|
|
{ "Data", "bthci_acl.data",
|
2012-03-12 14:40:09 +00:00
|
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
|
|
NULL, HFILL }
|
|
|
|
},
|
2012-09-10 12:12:05 +00:00
|
|
|
{ &hf_bthci_acl_continuation_to,
|
|
|
|
{ "This is a continuation to the PDU in frame", "bthci_acl.continuation_to",
|
2012-03-12 14:40:09 +00:00
|
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
|
|
|
"This is a continuation to the PDU in frame #", HFILL }
|
|
|
|
},
|
2012-09-10 12:12:05 +00:00
|
|
|
{ &hf_bthci_acl_reassembled_in,
|
|
|
|
{ "This PDU is reassembled in frame", "bthci_acl.reassembled_in",
|
2012-03-12 14:40:09 +00:00
|
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
|
|
|
"This PDU is reassembled in frame #", HFILL }
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Setup protocol subtree array */
|
|
|
|
static gint *ett[] = {
|
2012-09-10 12:12:05 +00:00
|
|
|
&ett_bthci_acl,
|
2012-03-12 14:40:09 +00:00
|
|
|
};
|
2012-09-10 12:12:05 +00:00
|
|
|
module_t *bthci_acl_module;
|
2012-03-12 14:40:09 +00:00
|
|
|
|
|
|
|
/* Register the protocol name and description */
|
2012-09-10 12:12:05 +00:00
|
|
|
proto_bthci_acl = proto_register_protocol("Bluetooth HCI ACL Packet", "HCI_ACL", "bthci_acl");
|
|
|
|
register_dissector("bthci_acl", dissect_bthci_acl, proto_bthci_acl);
|
2012-03-12 14:40:09 +00:00
|
|
|
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
2012-09-10 12:12:05 +00:00
|
|
|
proto_register_field_array(proto_bthci_acl, hf, array_length(hf));
|
2012-03-12 14:40:09 +00:00
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
|
|
|
|
/* Register configuration preferences */
|
2012-09-10 12:12:05 +00:00
|
|
|
bthci_acl_module = prefs_register_protocol(proto_bthci_acl, NULL);
|
|
|
|
prefs_register_bool_preference(bthci_acl_module, "hci_acl_reassembly",
|
2012-03-12 14:40:09 +00:00
|
|
|
"Reassemble ACL Fragments",
|
|
|
|
"Whether the ACL dissector should reassemble fragmented PDUs",
|
|
|
|
&acl_reassembly);
|
|
|
|
|
|
|
|
chandle_tree = se_tree_create(EMEM_TREE_TYPE_RED_BLACK, "bthci_acl chandles");
|
2006-05-14 10:18:29 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
2012-09-10 12:12:05 +00:00
|
|
|
proto_reg_handoff_bthci_acl(void)
|
2006-05-14 10:18:29 +00:00
|
|
|
{
|
2012-03-12 14:40:09 +00:00
|
|
|
dissector_handle_t bthci_acl_handle;
|
2006-05-14 10:18:29 +00:00
|
|
|
|
2012-03-12 14:40:09 +00:00
|
|
|
bthci_acl_handle = find_dissector("bthci_acl");
|
|
|
|
dissector_add_uint("hci_h4.type", HCI_H4_TYPE_ACL, bthci_acl_handle);
|
|
|
|
dissector_add_uint("hci_h1.type", BTHCI_CHANNEL_ACL, bthci_acl_handle);
|
2006-05-14 10:18:29 +00:00
|
|
|
|
2012-03-12 14:40:09 +00:00
|
|
|
btl2cap_handle = find_dissector("btl2cap");
|
2006-05-14 10:18:29 +00:00
|
|
|
}
|
|
|
|
|
2012-10-09 10:36:04 +00:00
|
|
|
/*
|
|
|
|
* Editor modelines - http://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:
|
|
|
|
*/
|