forked from osmocom/wireshark
Bluetooth: HCI: Detect Vendor by "Read Local Version Information"
There is information about manufacturer of Bluetooth chip. Also try to detect if that "permament" info is not changed, if so informs user about this rare event (probably there is an issue) Change-Id: I1fa748a67ad7943e61d4445d240f0578b94560fc Reviewed-on: https://code.wireshark.org/review/6408 Petri-Dish: Michal Labedzki <michal.labedzki@tieto.com> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Michal Labedzki <michal.labedzki@tieto.com> Tested-by: Michal Labedzki <michal.labedzki@tieto.com>
This commit is contained in:
Michal Labedzki
parent
55df238efd
commit
f343710ee2
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@ -47,6 +47,7 @@ static dissector_handle_t btle_handle;
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static dissector_handle_t data_handle;
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static dissector_table_t bluetooth_table;
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static dissector_table_t hci_vendor_table;
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static wmem_tree_t *chandle_sessions = NULL;
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static wmem_tree_t *chandle_to_bdaddr = NULL;
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@ -55,6 +56,7 @@ static wmem_tree_t *bdaddr_to_name = NULL;
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static wmem_tree_t *bdaddr_to_role = 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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static wmem_tree_t *hci_vendors = NULL;
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static int bluetooth_tap = -1;
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@ -1215,6 +1217,7 @@ dissect_bluetooth(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *dat
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bluetooth_data->bdaddr_to_role = bdaddr_to_role;
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bluetooth_data->localhost_bdaddr = localhost_bdaddr;
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bluetooth_data->localhost_name = localhost_name;
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bluetooth_data->hci_vendors = hci_vendors;
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bluetooth_data->previous_protocol_data.data = data;
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@ -1327,6 +1330,9 @@ proto_register_bluetooth(void)
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bdaddr_to_role = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
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localhost_bdaddr = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
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localhost_name = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
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hci_vendors = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
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hci_vendor_table = register_dissector_table("bluetooth.vendor", "HCI Vendor", FT_UINT16, BASE_HEX);
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bluetooth_tap = register_tap("bluetooth");
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@ -86,6 +86,7 @@ extern value_string_ext bthci_evt_evt_code_vals_ext;
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extern const value_string bluetooth_address_type_vals[];
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#define STATUS_SUCCESS 0x00
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/* We support Bluetooth over various interfaces, interface_id and adapter_id
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is used to decode further payload. Case: there is a host. Host has X
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@ -124,6 +125,7 @@ typedef struct _bluetooth_data_t {
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wmem_tree_t *bdaddr_to_role;
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wmem_tree_t *localhost_bdaddr;
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wmem_tree_t *localhost_name;
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wmem_tree_t *hci_vendors;
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union {
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void *data;
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@ -182,6 +184,13 @@ typedef struct _bluetooth_tap_data_t {
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guint32 adapter_id;
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} bluetooth_tap_data_t;
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typedef struct _hci_vendor_data_t {
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guint16 manufacturer;
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guint16 hci_revision;
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guint16 lmp_subversion;
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guint32 change_in_frame;
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struct _hci_vendor_data_t *previous;
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} hci_vendor_data_t;
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extern value_string_ext bluetooth_uuid_vals_ext;
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extern value_string_ext bluetooth_company_id_vals_ext;
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@ -330,6 +330,7 @@ static expert_field ei_command_unknown = EI_INIT;
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static expert_field ei_command_parameter_unexpected = EI_INIT;
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static dissector_table_t vendor_dissector_table;
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static dissector_table_t hci_vendor_table;
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/* Initialize the subtree pointers */
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static gint ett_bthci_cmd = -1;
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@ -3117,7 +3118,28 @@ dissect_bthci_cmd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *dat
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if (ogf == HCI_OGF_VENDOR_SPECIFIC) {
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col_append_fstr(pinfo->cinfo, COL_INFO, "Vendor Command 0x%04X (opcode 0x%04X)", ocf, opcode);
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dissector_try_uint_new(vendor_dissector_table, HCI_VENDOR_DEFAULT, tvb, pinfo, tree, TRUE, bluetooth_data);
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if (!dissector_try_uint_new(vendor_dissector_table, HCI_VENDOR_DEFAULT, tvb, pinfo, tree, TRUE, bluetooth_data)) {
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if (bluetooth_data) {
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hci_vendor_data_t *hci_vendor_data;
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wmem_tree_key_t key[3];
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guint32 interface_id;
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guint32 adapter_id;
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interface_id = bluetooth_data->interface_id;
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adapter_id = bluetooth_data->adapter_id;
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key[0].length = 1;
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key[0].key = &interface_id;
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key[1].length = 1;
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key[1].key = &adapter_id;
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key[2].length = 0;
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key[2].key = NULL;
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hci_vendor_data = (hci_vendor_data_t *) wmem_tree_lookup32_array(bluetooth_data->hci_vendors, key);
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if (hci_vendor_data)
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dissector_try_uint_new(hci_vendor_table, hci_vendor_data->manufacturer, tvb, pinfo, tree, TRUE, bluetooth_data);
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}
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}
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proto_tree_add_item(bthci_cmd_tree, hf_bthci_cmd_parameter, tvb, offset, tvb_captured_length_remaining(tvb, offset), ENC_NA);
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@ -4672,6 +4694,8 @@ proto_register_bthci_cmd(void)
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void
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proto_reg_handoff_bthci_cmd(void)
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{
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hci_vendor_table = find_dissector_table("bluetooth.vendor");
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dissector_add_uint("hci_h4.type", HCI_H4_TYPE_CMD, bthci_cmd_handle);
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dissector_add_uint("hci_h1.type", BTHCI_CHANNEL_COMMAND, bthci_cmd_handle);
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}
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@ -345,11 +345,14 @@ static int hf_bthci_evt_le_states_32 = -1;
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static int hf_bthci_evt_le_states_33 = -1;
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static int hf_bthci_evt_le_states_34 = -1;
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static int hf_usable_packet_types = -1;
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static int hf_changed_in_frame = -1;
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static expert_field ei_event_undecoded = EI_INIT;
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static expert_field ei_event_unknown = EI_INIT;
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static expert_field ei_manufacturer_data_changed = EI_INIT;
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static dissector_table_t vendor_dissector_table;
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static dissector_table_t hci_vendor_table;
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/* Initialize the subtree pointers */
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static gint ett_bthci_evt = -1;
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@ -358,6 +361,7 @@ static gint ett_lmp_subtree = -1;
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static gint ett_ptype_subtree = -1;
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static gint ett_le_state_subtree = -1;
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static gint ett_le_channel_map = -1;
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static gint ett_expert = -1;
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extern value_string_ext ext_usb_vendors_vals;
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extern value_string_ext ext_usb_products_vals;
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@ -1519,7 +1523,28 @@ dissect_bthci_evt_command_status(tvbuff_t *tvb, int offset, packet_info *pinfo,
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if (ogf == HCI_OGF_VENDOR_SPECIFIC) {
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col_append_fstr(pinfo->cinfo, COL_INFO, " (Vendor Command 0x%04X [(opcode 0x%04X])", opcode & 0x03ff, opcode);
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dissector_try_uint_new(vendor_dissector_table, HCI_VENDOR_DEFAULT, tvb, pinfo, main_tree, TRUE, bluetooth_data);
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if (!dissector_try_uint_new(vendor_dissector_table, HCI_VENDOR_DEFAULT, tvb, pinfo, main_tree, TRUE, bluetooth_data)) {
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if (bluetooth_data) {
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hci_vendor_data_t *hci_vendor_data;
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wmem_tree_key_t key[3];
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guint32 interface_id;
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guint32 adapter_id;
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interface_id = bluetooth_data->interface_id;
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adapter_id = bluetooth_data->adapter_id;
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key[0].length = 1;
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key[0].key = &interface_id;
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key[1].length = 1;
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key[1].key = &adapter_id;
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key[2].length = 0;
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key[2].key = NULL;
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hci_vendor_data = (hci_vendor_data_t *) wmem_tree_lookup32_array(bluetooth_data->hci_vendors, key);
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if (hci_vendor_data)
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dissector_try_uint_new(hci_vendor_table, hci_vendor_data->manufacturer, tvb, pinfo, main_tree, TRUE, bluetooth_data);
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}
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}
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return tvb_captured_length(tvb);
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} else {
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@ -2002,6 +2027,7 @@ dissect_bthci_evt_command_complete(tvbuff_t *tvb, int offset,
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guint8 bd_addr[6];
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gboolean local_addr = FALSE;
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gint hfx;
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guint16 status;
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proto_tree_add_item(tree, hf_bthci_evt_num_command_packets, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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@ -2037,7 +2063,28 @@ dissect_bthci_evt_command_complete(tvbuff_t *tvb, int offset,
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if (ogf == HCI_OGF_VENDOR_SPECIFIC) {
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col_append_fstr(pinfo->cinfo, COL_INFO, " (Vendor Command 0x%04X [opcode 0x%04X])", opcode & 0x03ff, opcode);
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dissector_try_uint_new(vendor_dissector_table, HCI_VENDOR_DEFAULT, tvb, pinfo, main_tree, TRUE, bluetooth_data);
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if (!dissector_try_uint_new(vendor_dissector_table, HCI_VENDOR_DEFAULT, tvb, pinfo, main_tree, TRUE, bluetooth_data)) {
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if (bluetooth_data) {
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hci_vendor_data_t *hci_vendor_data;
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wmem_tree_key_t key[3];
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guint32 interface_id;
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guint32 adapter_id;
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interface_id = bluetooth_data->interface_id;
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adapter_id = bluetooth_data->adapter_id;
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key[0].length = 1;
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key[0].key = &interface_id;
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key[1].length = 1;
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key[1].key = &adapter_id;
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key[2].length = 0;
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key[2].key = NULL;
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hci_vendor_data = (hci_vendor_data_t *) wmem_tree_lookup32_array(bluetooth_data->hci_vendors, key);
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if (hci_vendor_data)
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dissector_try_uint_new(hci_vendor_table, hci_vendor_data->manufacturer, tvb, pinfo, main_tree, TRUE, bluetooth_data);
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}
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}
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proto_tree_add_item(tree, hf_bthci_evt_ret_params, tvb, offset, tvb_captured_length_remaining(tvb, offset), ENC_NA);
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@ -2631,25 +2678,100 @@ dissect_bthci_evt_command_complete(tvbuff_t *tvb, int offset,
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offset += 1;
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break;
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case 0x1001: /* Read Local Version Information */
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case 0x1001: /* Read Local Version Information */ {
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proto_item *hci_revision_item;
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proto_item *manufacturer_item;
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proto_item *lmp_subversion_item;
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proto_tree_add_item(tree, hf_bthci_evt_status, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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status = tvb_get_guint8(tvb, offset);
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offset += 1;
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proto_tree_add_item(tree, hf_bthci_evt_hci_vers_nr, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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proto_tree_add_item(tree, hf_bthci_evt_hci_revision, tvb, offset, 2, ENC_LITTLE_ENDIAN);
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hci_revision_item = proto_tree_add_item(tree, hf_bthci_evt_hci_revision, tvb, offset, 2, ENC_LITTLE_ENDIAN);
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offset += 2;
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proto_tree_add_item(tree, hf_bthci_evt_vers_nr, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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proto_tree_add_item(tree, hf_bthci_evt_comp_id, tvb, offset, 2, ENC_LITTLE_ENDIAN);
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manufacturer_item = proto_tree_add_item(tree, hf_bthci_evt_comp_id, tvb, offset, 2, ENC_LITTLE_ENDIAN);
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offset += 2;
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proto_tree_add_item(tree, hf_bthci_evt_sub_vers_nr, tvb, offset, 2, ENC_LITTLE_ENDIAN);
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lmp_subversion_item = proto_tree_add_item(tree, hf_bthci_evt_sub_vers_nr, tvb, offset, 2, ENC_LITTLE_ENDIAN);
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offset += 2;
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if (status == STATUS_SUCCESS && bluetooth_data) {
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hci_vendor_data_t *hci_vendor_data;
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wmem_tree_key_t key[3];
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guint32 interface_id;
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guint32 adapter_id;
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guint16 hci_revision;
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guint16 manufacturer;
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guint16 lmp_subversion;
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interface_id = bluetooth_data->interface_id;
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adapter_id = bluetooth_data->adapter_id;
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key[0].length = 1;
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key[0].key = &interface_id;
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key[1].length = 1;
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key[1].key = &adapter_id;
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key[2].length = 0;
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key[2].key = NULL;
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hci_vendor_data = (hci_vendor_data_t *) wmem_tree_lookup32_array(bluetooth_data->hci_vendors, key);
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hci_revision = tvb_get_letohs(tvb, offset - 7);
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manufacturer = tvb_get_letohs(tvb, offset - 4);
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lmp_subversion = tvb_get_letohs(tvb, offset - 2);
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if (hci_vendor_data) {
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proto_item *sub_item;
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proto_tree *sub_tree;
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if (manufacturer != hci_vendor_data->manufacturer) {
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expert_add_info(pinfo, manufacturer_item, &ei_manufacturer_data_changed);
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sub_tree = proto_item_add_subtree(manufacturer_item, ett_expert);
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sub_item = proto_tree_add_uint(sub_tree, hf_changed_in_frame, tvb, 0, 0, hci_vendor_data->change_in_frame);
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PROTO_ITEM_SET_GENERATED(sub_item);
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}
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if (hci_revision != hci_vendor_data->hci_revision) {
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expert_add_info(pinfo, hci_revision_item, &ei_manufacturer_data_changed);
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sub_tree = proto_item_add_subtree(hci_revision_item, ett_expert);
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sub_item = proto_tree_add_uint(sub_tree, hf_changed_in_frame, tvb, 0, 0, hci_vendor_data->change_in_frame);
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PROTO_ITEM_SET_GENERATED(sub_item);
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}
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if (lmp_subversion != hci_vendor_data->lmp_subversion) {
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expert_add_info(pinfo, lmp_subversion_item, &ei_manufacturer_data_changed);
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sub_tree = proto_item_add_subtree(lmp_subversion_item, ett_expert);
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sub_item = proto_tree_add_uint(sub_tree, hf_changed_in_frame, tvb, 0, 0, hci_vendor_data->change_in_frame);
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PROTO_ITEM_SET_GENERATED(sub_item);
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}
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}
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if (!pinfo->fd->flags.visited) {
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hci_vendor_data_t *new_hci_vendor_data;
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new_hci_vendor_data = wmem_new(wmem_file_scope(), hci_vendor_data_t);
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new_hci_vendor_data->hci_revision = hci_revision;
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new_hci_vendor_data->manufacturer = manufacturer;
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new_hci_vendor_data->lmp_subversion = lmp_subversion;
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new_hci_vendor_data->change_in_frame = pinfo->fd->num;
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if (hci_vendor_data && hci_vendor_data->change_in_frame < pinfo->fd->num)
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new_hci_vendor_data->previous = hci_vendor_data;
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else
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new_hci_vendor_data->previous = NULL;
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wmem_tree_insert32_array(bluetooth_data->hci_vendors, key, new_hci_vendor_data);
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}
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}}
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break;
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case 0x1002: /* Read Local Supported Commands */
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@ -3674,7 +3796,28 @@ dissect_bthci_evt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *dat
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break;
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case 0xff: /* Vendor-Specific */
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dissector_try_uint_new(vendor_dissector_table, HCI_VENDOR_DEFAULT, tvb, pinfo, tree, TRUE, bluetooth_data);
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if (!dissector_try_uint_new(vendor_dissector_table, HCI_VENDOR_DEFAULT, tvb, pinfo, tree, TRUE, bluetooth_data)) {
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if (bluetooth_data) {
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hci_vendor_data_t *hci_vendor_data;
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wmem_tree_key_t key[3];
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guint32 interface_id;
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guint32 adapter_id;
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interface_id = bluetooth_data->interface_id;
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adapter_id = bluetooth_data->adapter_id;
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key[0].length = 1;
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key[0].key = &interface_id;
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key[1].length = 1;
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key[1].key = &adapter_id;
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key[2].length = 0;
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key[2].key = NULL;
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hci_vendor_data = (hci_vendor_data_t *) wmem_tree_lookup32_array(bluetooth_data->hci_vendors, key);
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if (hci_vendor_data)
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dissector_try_uint_new(hci_vendor_table, hci_vendor_data->manufacturer, tvb, pinfo, tree, TRUE, bluetooth_data);
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}
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}
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proto_tree_add_expert(bthci_evt_tree, pinfo, &ei_event_undecoded, tvb, offset, tvb_captured_length_remaining(tvb, offset));
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@ -5183,12 +5326,18 @@ proto_register_bthci_evt(void)
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{ "Usable Packet Types", "bthci_evt.usable_packet_types",
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FT_NONE, BASE_NONE, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_changed_in_frame,
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{ "Change in Frame", "bthci_evt.change_in_frame",
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FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
}
|
||||
};
|
||||
|
||||
static ei_register_info ei[] = {
|
||||
{ &ei_event_undecoded, { "bthci_evt.expert.event.undecoded", PI_PROTOCOL, PI_UNDECODED, "Event undecoded", EXPFILL }},
|
||||
{ &ei_event_unknown, { "bthci_evt.expert.event.unknown", PI_PROTOCOL, PI_WARN, "Unknown event", EXPFILL }}
|
||||
{ &ei_event_unknown, { "bthci_evt.expert.event.unknown", PI_PROTOCOL, PI_WARN, "Unknown event", EXPFILL }},
|
||||
{ &ei_manufacturer_data_changed, { "bthci_evt.expert.event.manufacturer_data_changed", PI_PROTOCOL, PI_WARN, "Manufacturer data changed", EXPFILL }}
|
||||
};
|
||||
|
||||
/* Setup protocol subtree array */
|
||||
|
|
@ -5198,7 +5347,8 @@ proto_register_bthci_evt(void)
|
|||
&ett_lmp_subtree,
|
||||
&ett_ptype_subtree,
|
||||
&ett_le_state_subtree,
|
||||
&ett_le_channel_map
|
||||
&ett_le_channel_map,
|
||||
&ett_expert
|
||||
};
|
||||
|
||||
/* Decode As handling */
|
||||
|
|
@ -5233,6 +5383,7 @@ void
|
|||
proto_reg_handoff_bthci_evt(void)
|
||||
{
|
||||
vendor_dissector_table = find_dissector_table("bthci_cmd.vendor");
|
||||
hci_vendor_table = find_dissector_table("bluetooth.vendor");
|
||||
|
||||
dissector_add_uint("hci_h4.type", HCI_H4_TYPE_EVT, bthci_evt_handle);
|
||||
dissector_add_uint("hci_h1.type", BTHCI_CHANNEL_EVENT, bthci_evt_handle);
|
||||
|
|
|
|||
|
|
@ -343,8 +343,6 @@ static const value_string le_filter_policy_vals[] = {
|
|||
{ 0, NULL }
|
||||
};
|
||||
|
||||
#define STATUS_SUCCESS 0x00
|
||||
|
||||
void proto_register_bthci_vendor_broadcom(void);
|
||||
void proto_reg_handoff_bthci_vendor_broadcom(void);
|
||||
|
||||
|
|
@ -1379,7 +1377,7 @@ proto_register_bthci_vendor_broadcom(void)
|
|||
opcode_vals[i_opcode].value = 0;
|
||||
opcode_vals[i_opcode].strptr = NULL;
|
||||
|
||||
proto_bthci_vendor_broadcom = proto_register_protocol("Bluetooth Broadcom HCI Command",
|
||||
proto_bthci_vendor_broadcom = proto_register_protocol("Bluetooth Broadcom HCI",
|
||||
"HCI BROADCOM", "bthci_vendor.broadcom");
|
||||
|
||||
bthci_vendor_broadcom_handle = new_register_dissector("bthci_vendor.broadcom", dissect_bthci_vendor_broadcom, proto_bthci_vendor_broadcom);
|
||||
|
|
@ -1396,6 +1394,7 @@ proto_reg_handoff_bthci_vendor_broadcom(void)
|
|||
{
|
||||
btcommon_ad_handle = find_dissector("btcommon.eir_ad.ad");
|
||||
dissector_add_for_decode_as("bthci_cmd.vendor", bthci_vendor_broadcom_handle);
|
||||
dissector_add_uint("bluetooth.vendor", 0x000F, bthci_vendor_broadcom_handle);
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
|||
Loading…
Reference in New Issue