![Michael Mann](/assets/img/avatar_default.png)
https://www.wireshark.org/lists/wireshark-dev/201406/msg00131.html
This reverts commit 246fe2ca4c
.
Change-Id: Ib24bae0198c13a84bd7f731bf4af921212109a8f
Reviewed-on: https://code.wireshark.org/review/2430
Reviewed-by: Michael Mann <mmann78@netscape.net>
289 lines
11 KiB
C
289 lines
11 KiB
C
/* packet-bthci_sco.c
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* Routines for the Bluetooth SCO dissection
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* Copyright 2002, Christoph Scholz <scholz@cs.uni-bonn.de>
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*
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* Refactored for wireshark checkin
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* Ronnie Sahlberg 2006
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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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/addr_resolv.h>
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#include <epan/wmem/wmem.h>
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#include <wiretap/wtap.h>
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#include "packet-bluetooth-hci.h"
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/* Initialize the protocol and registered fields */
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static int proto_bthci_sco = -1;
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static int hf_bthci_sco_chandle = -1;
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static int hf_bthci_sco_length = -1;
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static int hf_bthci_sco_data = -1;
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/* Initialize the subtree pointers */
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static gint ett_bthci_sco = -1;
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static dissector_handle_t bthci_sco_handle;
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void proto_register_bthci_sco(void);
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void proto_reg_handoff_bthci_sco(void);
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/* Code to actually dissect the packets */
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static gint
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dissect_bthci_sco(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data)
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{
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proto_item *ti;
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proto_tree *bthci_sco_tree;
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gint offset = 0;
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guint16 flags;
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hci_data_t *hci_data;
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wmem_tree_key_t key[5];
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guint32 k_connection_handle;
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guint32 k_frame_number;
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guint32 k_interface_id;
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guint32 k_adapter_id;
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remote_bdaddr_t *remote_bdaddr;
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const gchar *localhost_name;
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guint8 localhost_bdaddr[6];
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const gchar *localhost_ether_addr;
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gchar *localhost_addr_name;
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gint localhost_length;
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localhost_bdaddr_entry_t *localhost_bdaddr_entry;
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localhost_name_entry_t *localhost_name_entry;
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ti = proto_tree_add_item(tree, proto_bthci_sco, tvb, offset, -1, ENC_NA);
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bthci_sco_tree = proto_item_add_subtree(ti, ett_bthci_sco);
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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_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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proto_tree_add_item(bthci_sco_tree, hf_bthci_sco_chandle, tvb, offset, 2, ENC_LITTLE_ENDIAN);
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flags = tvb_get_letohs(tvb, offset);
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offset += 2;
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proto_tree_add_item(bthci_sco_tree, hf_bthci_sco_length, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset++;
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hci_data = (hci_data_t *) data;
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DISSECTOR_ASSERT(hci_data);
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k_interface_id = hci_data->interface_id;
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k_adapter_id = hci_data->adapter_id;
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k_connection_handle = flags & 0x0fff;
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k_frame_number = pinfo->fd->num;
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key[0].length = 1;
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key[0].key = &k_interface_id;
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key[1].length = 1;
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key[1].key = &k_adapter_id;
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key[2].length = 1;
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key[2].key = &k_connection_handle;
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key[3].length = 1;
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key[3].key = &k_frame_number;
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key[4].length = 0;
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key[4].key = NULL;
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/* remote bdaddr and name */
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remote_bdaddr = (remote_bdaddr_t *)wmem_tree_lookup32_array_le(hci_data->chandle_to_bdaddr_table, key);
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if (remote_bdaddr && remote_bdaddr->interface_id == hci_data->interface_id &&
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remote_bdaddr->adapter_id == hci_data->adapter_id &&
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remote_bdaddr->chandle == (flags & 0x0fff)) {
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guint32 k_bd_addr_oui;
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guint32 k_bd_addr_id;
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guint32 bd_addr_oui;
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guint32 bd_addr_id;
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device_name_t *device_name;
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const gchar *remote_name;
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const gchar *remote_ether_addr;
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gchar *remote_addr_name;
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gint remote_length;
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bd_addr_oui = remote_bdaddr->bd_addr[0] << 16 | remote_bdaddr->bd_addr[1] << 8 | remote_bdaddr->bd_addr[2];
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bd_addr_id = remote_bdaddr->bd_addr[3] << 16 | remote_bdaddr->bd_addr[4] << 8 | remote_bdaddr->bd_addr[5];
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k_bd_addr_oui = bd_addr_oui;
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k_bd_addr_id = bd_addr_id;
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k_frame_number = pinfo->fd->num;
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key[0].length = 1;
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key[0].key = &k_bd_addr_id;
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key[1].length = 1;
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key[1].key = &k_bd_addr_oui;
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key[2].length = 1;
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key[2].key = &k_frame_number;
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key[3].length = 0;
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key[3].key = NULL;
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device_name = (device_name_t *)wmem_tree_lookup32_array_le(hci_data->bdaddr_to_name_table, key);
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if (device_name && device_name->bd_addr_oui == bd_addr_oui && device_name->bd_addr_id == bd_addr_id)
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remote_name = device_name->name;
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else
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remote_name = "";
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remote_ether_addr = get_ether_name(remote_bdaddr->bd_addr);
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remote_length = (gint)(strlen(remote_ether_addr) + 3 + strlen(remote_name) + 1);
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remote_addr_name = (gchar *)wmem_alloc(pinfo->pool, remote_length);
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g_snprintf(remote_addr_name, remote_length, "%s (%s)", remote_ether_addr, remote_name);
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if (pinfo->p2p_dir == P2P_DIR_RECV) {
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SET_ADDRESS(&pinfo->net_src, AT_STRINGZ, (int)strlen(remote_name) + 1, remote_name);
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SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, remote_bdaddr->bd_addr);
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SET_ADDRESS(&pinfo->src, AT_STRINGZ, (int)strlen(remote_addr_name) + 1, remote_addr_name);
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} else if (pinfo->p2p_dir == P2P_DIR_SENT) {
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SET_ADDRESS(&pinfo->net_dst, AT_STRINGZ, (int)strlen(remote_name) + 1, remote_name);
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SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, remote_bdaddr->bd_addr);
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SET_ADDRESS(&pinfo->dst, AT_STRINGZ, (int)strlen(remote_addr_name) + 1, remote_addr_name);
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}
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} else {
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if (pinfo->p2p_dir == P2P_DIR_RECV) {
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SET_ADDRESS(&pinfo->net_src, AT_STRINGZ, 1, "");
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SET_ADDRESS(&pinfo->dl_src, AT_STRINGZ, 1, "");
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SET_ADDRESS(&pinfo->src, AT_STRINGZ, 10, "remote ()");
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} else if (pinfo->p2p_dir == P2P_DIR_SENT) {
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SET_ADDRESS(&pinfo->net_dst, AT_STRINGZ, 1, "");
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SET_ADDRESS(&pinfo->dl_dst, AT_STRINGZ, 1, "");
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SET_ADDRESS(&pinfo->dst, AT_STRINGZ, 10, "remote ()");
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}
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}
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k_interface_id = hci_data->interface_id;
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k_adapter_id = hci_data->adapter_id;
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k_frame_number = pinfo->fd->num;
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/* localhost bdaddr and name */
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key[0].length = 1;
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key[0].key = &k_interface_id;
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key[1].length = 1;
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key[1].key = &k_adapter_id;
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key[2].length = 1;
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key[2].key = &k_frame_number;
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key[3].length = 0;
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key[3].key = NULL;
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localhost_bdaddr_entry = (localhost_bdaddr_entry_t *)wmem_tree_lookup32_array_le(hci_data->localhost_bdaddr, key);
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if (localhost_bdaddr_entry && localhost_bdaddr_entry->interface_id == hci_data->interface_id &&
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localhost_bdaddr_entry->adapter_id == hci_data->adapter_id) {
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localhost_ether_addr = get_ether_name(localhost_bdaddr_entry->bd_addr);
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memcpy(localhost_bdaddr, localhost_bdaddr_entry->bd_addr, 6);
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} else {
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localhost_ether_addr = "localhost";
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/* XXX - is this the right value to use? */
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memset(localhost_bdaddr, 0, 6);
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}
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localhost_name_entry = (localhost_name_entry_t *)wmem_tree_lookup32_array_le(hci_data->localhost_name, key);
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if (localhost_name_entry && localhost_name_entry->interface_id == hci_data->interface_id &&
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localhost_name_entry->adapter_id == hci_data->adapter_id)
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localhost_name = localhost_name_entry->name;
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else
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localhost_name = "";
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localhost_length = (gint)(strlen(localhost_ether_addr) + 3 + strlen(localhost_name) + 1);
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localhost_addr_name = (gchar *)wmem_alloc(pinfo->pool, localhost_length);
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g_snprintf(localhost_addr_name, localhost_length, "%s (%s)", localhost_ether_addr, localhost_name);
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if (pinfo->p2p_dir == P2P_DIR_RECV) {
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SET_ADDRESS(&pinfo->net_dst, AT_STRINGZ, (int)strlen(localhost_name) + 1, localhost_name);
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SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, localhost_bdaddr);
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SET_ADDRESS(&pinfo->dst, AT_STRINGZ, (int)strlen(localhost_addr_name) + 1, localhost_addr_name);
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} else if (pinfo->p2p_dir == P2P_DIR_SENT) {
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SET_ADDRESS(&pinfo->net_src, AT_STRINGZ, (int)strlen(localhost_name) + 1, localhost_name);
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SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, localhost_bdaddr);
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SET_ADDRESS(&pinfo->src, AT_STRINGZ, (int)strlen(localhost_addr_name) + 1, localhost_addr_name);
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}
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proto_tree_add_item(bthci_sco_tree, hf_bthci_sco_data, tvb, offset, -1, ENC_NA);
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return tvb_length(tvb);
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}
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void
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proto_register_bthci_sco(void)
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{
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static hf_register_info hf[] = {
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{ &hf_bthci_sco_chandle,
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{ "Connection Handle", "bthci_sco.chandle",
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FT_UINT16, BASE_HEX, NULL, 0x0FFF,
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NULL, HFILL }
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},
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{ &hf_bthci_sco_length,
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{ "Data Total Length", "bthci_sco.length",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_bthci_sco_data,
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{ "Data", "bthci_sco.data",
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FT_NONE, BASE_NONE, NULL, 0x0,
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NULL, HFILL }
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},
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};
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/* Setup protocol subtree array */
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static gint *ett[] = {
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&ett_bthci_sco
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};
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/* Register the protocol name and description */
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proto_bthci_sco = proto_register_protocol("Bluetooth HCI SCO Packet", "HCI_SCO", "bthci_sco");
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bthci_sco_handle = new_register_dissector("bthci_sco", dissect_bthci_sco, proto_bthci_sco);
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/* Required function calls to register the header fields and subtrees used */
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proto_register_field_array(proto_bthci_sco, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_bthci_sco(void)
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{
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dissector_add_uint("hci_h4.type", HCI_H4_TYPE_SCO, bthci_sco_handle);
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dissector_add_uint("hci_h1.type", BTHCI_CHANNEL_SCO, bthci_sco_handle);
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}
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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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