1# Copyright 2021-2022 Google LLC 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# https://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14 15# ----------------------------------------------------------------------------- 16# Imports 17# ----------------------------------------------------------------------------- 18import asyncio 19import sys 20import os 21import logging 22from bumble.colors import color 23 24from bumble.device import Device 25from bumble.transport import open_transport_or_link 26from bumble.core import BT_BR_EDR_TRANSPORT, BT_L2CAP_PROTOCOL_ID 27from bumble.sdp import ( 28 Client as SDP_Client, 29 SDP_PUBLIC_BROWSE_ROOT, 30 SDP_ALL_ATTRIBUTES_RANGE, 31) 32 33 34# ----------------------------------------------------------------------------- 35async def main(): 36 if len(sys.argv) < 3: 37 print( 38 'Usage: run_classic_connect.py <device-config> <transport-spec> ' 39 '<bluetooth-addresses..>' 40 ) 41 print('example: run_classic_connect.py classic1.json usb:0 E1:CA:72:48:C4:E8') 42 return 43 44 print('<<< connecting to HCI...') 45 async with await open_transport_or_link(sys.argv[2]) as (hci_source, hci_sink): 46 print('<<< connected') 47 48 # Create a device 49 device = Device.from_config_file_with_hci(sys.argv[1], hci_source, hci_sink) 50 device.classic_enabled = True 51 await device.power_on() 52 53 async def connect(target_address): 54 print(f'=== Connecting to {target_address}...') 55 connection = await device.connect(target_address, transport=BT_BR_EDR_TRANSPORT) 56 print(f'=== Connected to {connection.peer_address}!') 57 58 # Connect to the SDP Server 59 sdp_client = SDP_Client(device) 60 await sdp_client.connect(connection) 61 62 # List all services in the root browse group 63 service_record_handles = await sdp_client.search_services( 64 [SDP_PUBLIC_BROWSE_ROOT] 65 ) 66 print(color('\n==================================', 'blue')) 67 print(color('SERVICES:', 'yellow'), service_record_handles) 68 69 # For each service in the root browse group, get all its attributes 70 for service_record_handle in service_record_handles: 71 attributes = await sdp_client.get_attributes( 72 service_record_handle, [SDP_ALL_ATTRIBUTES_RANGE] 73 ) 74 print(color(f'SERVICE {service_record_handle:04X} attributes:', 'yellow')) 75 for attribute in attributes: 76 print(' ', attribute.to_string(with_colors=True)) 77 78 # Search for services with an L2CAP service attribute 79 search_result = await sdp_client.search_attributes( 80 [BT_L2CAP_PROTOCOL_ID], [SDP_ALL_ATTRIBUTES_RANGE] 81 ) 82 print(color('\n==================================', 'blue')) 83 print(color('SEARCH RESULTS:', 'yellow')) 84 for attribute_list in search_result: 85 print(color('SERVICE:', 'green')) 86 print( 87 ' ' 88 + '\n '.join( 89 [ 90 attribute.to_string(with_colors=True) 91 for attribute in attribute_list 92 ] 93 ) 94 ) 95 96 await sdp_client.disconnect() 97 await hci_source.wait_for_termination() 98 99 # Connect to a peer 100 target_addresses = sys.argv[3:] 101 await asyncio.wait( 102 [ 103 asyncio.create_task(connect(target_address)) 104 for target_address in target_addresses 105 ] 106 ) 107 108 109# ----------------------------------------------------------------------------- 110logging.basicConfig(level=os.environ.get('BUMBLE_LOGLEVEL', 'DEBUG').upper()) 111asyncio.run(main()) 112