mirror of
https://github.com/google/bumble.git
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1325 lines
51 KiB
Python
1325 lines
51 KiB
Python
# Copyright 2021-2022 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# -----------------------------------------------------------------------------
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# Imports
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# -----------------------------------------------------------------------------
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from __future__ import annotations
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import asyncio
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import collections
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import dataclasses
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import logging
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import struct
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import itertools
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from typing import (
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Any,
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Awaitable,
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Callable,
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Deque,
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Dict,
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Optional,
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Set,
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cast,
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TYPE_CHECKING,
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)
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from bumble.colors import color
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from bumble.l2cap import L2CAP_PDU
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from bumble.snoop import Snooper
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from bumble import drivers
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from bumble import hci
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from bumble.core import (
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BT_BR_EDR_TRANSPORT,
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BT_LE_TRANSPORT,
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ConnectionPHY,
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ConnectionParameters,
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)
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from bumble.utils import AbortableEventEmitter
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from bumble.transport.common import TransportLostError
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if TYPE_CHECKING:
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from .transport.common import TransportSink, TransportSource
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# -----------------------------------------------------------------------------
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# Logging
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# -----------------------------------------------------------------------------
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logger = logging.getLogger(__name__)
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# -----------------------------------------------------------------------------
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class AclPacketQueue:
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max_packet_size: int
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def __init__(
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self,
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max_packet_size: int,
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max_in_flight: int,
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send: Callable[[hci.HCI_Packet], None],
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) -> None:
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self.max_packet_size = max_packet_size
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self.max_in_flight = max_in_flight
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self.in_flight = 0
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self.send = send
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self.packets: Deque[hci.HCI_AclDataPacket] = collections.deque()
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def enqueue(self, packet: hci.HCI_AclDataPacket) -> None:
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self.packets.appendleft(packet)
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self.check_queue()
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if self.packets:
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logger.debug(
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f'{self.in_flight} ACL packets in flight, '
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f'{len(self.packets)} in queue'
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)
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def check_queue(self) -> None:
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while self.packets and self.in_flight < self.max_in_flight:
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packet = self.packets.pop()
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self.send(packet)
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self.in_flight += 1
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def on_packets_completed(self, packet_count: int) -> None:
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if packet_count > self.in_flight:
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logger.warning(
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color(
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'!!! {packet_count} completed but only '
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f'{self.in_flight} in flight'
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)
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)
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packet_count = self.in_flight
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self.in_flight -= packet_count
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self.check_queue()
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# -----------------------------------------------------------------------------
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class Connection:
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def __init__(
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self, host: Host, handle: int, peer_address: hci.Address, transport: int
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):
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self.host = host
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self.handle = handle
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self.peer_address = peer_address
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self.assembler = hci.HCI_AclDataPacketAssembler(self.on_acl_pdu)
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self.transport = transport
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acl_packet_queue: Optional[AclPacketQueue] = (
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host.le_acl_packet_queue
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if transport == BT_LE_TRANSPORT
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else host.acl_packet_queue
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)
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assert acl_packet_queue
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self.acl_packet_queue = acl_packet_queue
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def on_hci_acl_data_packet(self, packet: hci.HCI_AclDataPacket) -> None:
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self.assembler.feed_packet(packet)
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def on_acl_pdu(self, pdu: bytes) -> None:
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l2cap_pdu = L2CAP_PDU.from_bytes(pdu)
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self.host.on_l2cap_pdu(self, l2cap_pdu.cid, l2cap_pdu.payload)
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# -----------------------------------------------------------------------------
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@dataclasses.dataclass
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class ScoLink:
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peer_address: hci.Address
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handle: int
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# -----------------------------------------------------------------------------
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@dataclasses.dataclass
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class CisLink:
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peer_address: hci.Address
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handle: int
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# -----------------------------------------------------------------------------
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class Host(AbortableEventEmitter):
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connections: Dict[int, Connection]
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cis_links: Dict[int, CisLink]
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sco_links: Dict[int, ScoLink]
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bigs: dict[int, set[int]] = {} # BIG Handle to BIS Handles
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acl_packet_queue: Optional[AclPacketQueue] = None
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le_acl_packet_queue: Optional[AclPacketQueue] = None
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hci_sink: Optional[TransportSink] = None
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hci_metadata: Dict[str, Any]
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long_term_key_provider: Optional[
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Callable[[int, bytes, int], Awaitable[Optional[bytes]]]
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]
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link_key_provider: Optional[Callable[[hci.Address], Awaitable[Optional[bytes]]]]
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def __init__(
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self,
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controller_source: Optional[TransportSource] = None,
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controller_sink: Optional[TransportSink] = None,
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) -> None:
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super().__init__()
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self.hci_metadata = {}
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self.ready = False # True when we can accept incoming packets
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self.connections = {} # Connections, by connection handle
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self.cis_links = {} # CIS links, by connection handle
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self.sco_links = {} # SCO links, by connection handle
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self.pending_command = None
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self.pending_response: Optional[asyncio.Future[Any]] = None
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self.number_of_supported_advertising_sets = 0
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self.maximum_advertising_data_length = 31
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self.local_version = None
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self.local_supported_commands = 0
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self.local_le_features = 0
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self.local_lmp_features = hci.LmpFeatureMask(0) # Classic LMP features
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self.suggested_max_tx_octets = 251 # Max allowed
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self.suggested_max_tx_time = 2120 # Max allowed
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self.command_semaphore = asyncio.Semaphore(1)
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self.long_term_key_provider = None
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self.link_key_provider = None
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self.pairing_io_capability_provider = None # Classic only
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self.snooper: Optional[Snooper] = None
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# Connect to the source and sink if specified
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if controller_source:
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self.set_packet_source(controller_source)
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if controller_sink:
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self.set_packet_sink(controller_sink)
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def find_connection_by_bd_addr(
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self,
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bd_addr: hci.Address,
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transport: Optional[int] = None,
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check_address_type: bool = False,
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) -> Optional[Connection]:
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for connection in self.connections.values():
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if bytes(connection.peer_address) == bytes(bd_addr):
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if (
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check_address_type
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and connection.peer_address.address_type != bd_addr.address_type
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):
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continue
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if transport is None or connection.transport == transport:
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return connection
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return None
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async def flush(self) -> None:
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# Make sure no command is pending
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await self.command_semaphore.acquire()
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# Flush current host state, then release command semaphore
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self.emit('flush')
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self.command_semaphore.release()
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async def reset(self, driver_factory=drivers.get_driver_for_host):
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if self.ready:
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self.ready = False
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await self.flush()
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# Instantiate and init a driver for the host if needed.
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# NOTE: we don't keep a reference to the driver here, because we don't
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# currently have a need for the driver later on. But if the driver interface
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# evolves, it may be required, then, to store a reference to the driver in
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# an object property.
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reset_needed = True
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if driver_factory is not None:
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if driver := await driver_factory(self):
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await driver.init_controller()
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reset_needed = False
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# Send a reset command unless a driver has already done so.
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if reset_needed:
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await self.send_command(hci.HCI_Reset_Command(), check_result=True)
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self.ready = True
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response = await self.send_command(
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hci.HCI_Read_Local_Supported_Commands_Command(), check_result=True
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)
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self.local_supported_commands = int.from_bytes(
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response.return_parameters.supported_commands, 'little'
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)
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if self.supports_command(hci.HCI_LE_READ_LOCAL_SUPPORTED_FEATURES_COMMAND):
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response = await self.send_command(
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hci.HCI_LE_Read_Local_Supported_Features_Command(), check_result=True
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)
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self.local_le_features = struct.unpack(
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'<Q', response.return_parameters.le_features
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)[0]
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if self.supports_command(hci.HCI_READ_LOCAL_VERSION_INFORMATION_COMMAND):
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response = await self.send_command(
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hci.HCI_Read_Local_Version_Information_Command(), check_result=True
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)
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self.local_version = response.return_parameters
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if self.supports_command(hci.HCI_READ_LOCAL_EXTENDED_FEATURES_COMMAND):
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max_page_number = 0
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page_number = 0
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lmp_features = 0
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while page_number <= max_page_number:
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response = await self.send_command(
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hci.HCI_Read_Local_Extended_Features_Command(
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page_number=page_number
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),
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check_result=True,
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)
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lmp_features |= int.from_bytes(
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response.return_parameters.extended_lmp_features, 'little'
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) << (64 * page_number)
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max_page_number = response.return_parameters.maximum_page_number
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page_number += 1
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self.local_lmp_features = hci.LmpFeatureMask(lmp_features)
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elif self.supports_command(hci.HCI_READ_LOCAL_SUPPORTED_FEATURES_COMMAND):
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response = await self.send_command(
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hci.HCI_Read_Local_Supported_Features_Command(), check_result=True
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)
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self.local_lmp_features = hci.LmpFeatureMask(
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int.from_bytes(response.return_parameters.lmp_features, 'little')
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)
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await self.send_command(
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hci.HCI_Set_Event_Mask_Command(
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event_mask=hci.HCI_Set_Event_Mask_Command.mask(
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[
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hci.HCI_INQUIRY_COMPLETE_EVENT,
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hci.HCI_INQUIRY_RESULT_EVENT,
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hci.HCI_CONNECTION_COMPLETE_EVENT,
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hci.HCI_CONNECTION_REQUEST_EVENT,
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hci.HCI_DISCONNECTION_COMPLETE_EVENT,
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hci.HCI_AUTHENTICATION_COMPLETE_EVENT,
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hci.HCI_REMOTE_NAME_REQUEST_COMPLETE_EVENT,
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hci.HCI_ENCRYPTION_CHANGE_EVENT,
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hci.HCI_CHANGE_CONNECTION_LINK_KEY_COMPLETE_EVENT,
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hci.HCI_LINK_KEY_TYPE_CHANGED_EVENT,
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hci.HCI_READ_REMOTE_SUPPORTED_FEATURES_COMPLETE_EVENT,
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hci.HCI_READ_REMOTE_VERSION_INFORMATION_COMPLETE_EVENT,
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hci.HCI_QOS_SETUP_COMPLETE_EVENT,
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hci.HCI_HARDWARE_ERROR_EVENT,
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hci.HCI_FLUSH_OCCURRED_EVENT,
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hci.HCI_ROLE_CHANGE_EVENT,
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hci.HCI_MODE_CHANGE_EVENT,
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hci.HCI_RETURN_LINK_KEYS_EVENT,
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hci.HCI_PIN_CODE_REQUEST_EVENT,
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hci.HCI_LINK_KEY_REQUEST_EVENT,
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hci.HCI_LINK_KEY_NOTIFICATION_EVENT,
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hci.HCI_LOOPBACK_COMMAND_EVENT,
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hci.HCI_DATA_BUFFER_OVERFLOW_EVENT,
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hci.HCI_MAX_SLOTS_CHANGE_EVENT,
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hci.HCI_READ_CLOCK_OFFSET_COMPLETE_EVENT,
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hci.HCI_CONNECTION_PACKET_TYPE_CHANGED_EVENT,
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hci.HCI_QOS_VIOLATION_EVENT,
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hci.HCI_PAGE_SCAN_REPETITION_MODE_CHANGE_EVENT,
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hci.HCI_FLOW_SPECIFICATION_COMPLETE_EVENT,
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hci.HCI_INQUIRY_RESULT_WITH_RSSI_EVENT,
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hci.HCI_READ_REMOTE_EXTENDED_FEATURES_COMPLETE_EVENT,
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hci.HCI_SYNCHRONOUS_CONNECTION_COMPLETE_EVENT,
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hci.HCI_SYNCHRONOUS_CONNECTION_CHANGED_EVENT,
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hci.HCI_SNIFF_SUBRATING_EVENT,
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hci.HCI_EXTENDED_INQUIRY_RESULT_EVENT,
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hci.HCI_ENCRYPTION_KEY_REFRESH_COMPLETE_EVENT,
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hci.HCI_IO_CAPABILITY_REQUEST_EVENT,
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hci.HCI_IO_CAPABILITY_RESPONSE_EVENT,
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hci.HCI_USER_CONFIRMATION_REQUEST_EVENT,
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hci.HCI_USER_PASSKEY_REQUEST_EVENT,
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hci.HCI_REMOTE_OOB_DATA_REQUEST_EVENT,
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hci.HCI_SIMPLE_PAIRING_COMPLETE_EVENT,
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hci.HCI_LINK_SUPERVISION_TIMEOUT_CHANGED_EVENT,
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hci.HCI_ENHANCED_FLUSH_COMPLETE_EVENT,
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hci.HCI_USER_PASSKEY_NOTIFICATION_EVENT,
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hci.HCI_KEYPRESS_NOTIFICATION_EVENT,
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hci.HCI_REMOTE_HOST_SUPPORTED_FEATURES_NOTIFICATION_EVENT,
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hci.HCI_LE_META_EVENT,
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]
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)
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)
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)
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if (
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self.local_version is not None
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and self.local_version.hci_version <= hci.HCI_VERSION_BLUETOOTH_CORE_4_0
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):
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# Some older controllers don't like event masks with bits they don't
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# understand
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le_event_mask = bytes.fromhex('1F00000000000000')
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else:
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le_event_mask = hci.HCI_LE_Set_Event_Mask_Command.mask(
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[
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hci.HCI_LE_CONNECTION_COMPLETE_EVENT,
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hci.HCI_LE_ADVERTISING_REPORT_EVENT,
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hci.HCI_LE_CONNECTION_UPDATE_COMPLETE_EVENT,
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hci.HCI_LE_READ_REMOTE_FEATURES_COMPLETE_EVENT,
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hci.HCI_LE_LONG_TERM_KEY_REQUEST_EVENT,
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hci.HCI_LE_REMOTE_CONNECTION_PARAMETER_REQUEST_EVENT,
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hci.HCI_LE_DATA_LENGTH_CHANGE_EVENT,
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hci.HCI_LE_READ_LOCAL_P_256_PUBLIC_KEY_COMPLETE_EVENT,
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hci.HCI_LE_GENERATE_DHKEY_COMPLETE_EVENT,
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hci.HCI_LE_ENHANCED_CONNECTION_COMPLETE_EVENT,
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hci.HCI_LE_DIRECTED_ADVERTISING_REPORT_EVENT,
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hci.HCI_LE_PHY_UPDATE_COMPLETE_EVENT,
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hci.HCI_LE_EXTENDED_ADVERTISING_REPORT_EVENT,
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hci.HCI_LE_PERIODIC_ADVERTISING_SYNC_ESTABLISHED_EVENT,
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hci.HCI_LE_PERIODIC_ADVERTISING_REPORT_EVENT,
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hci.HCI_LE_PERIODIC_ADVERTISING_SYNC_LOST_EVENT,
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hci.HCI_LE_SCAN_TIMEOUT_EVENT,
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hci.HCI_LE_ADVERTISING_SET_TERMINATED_EVENT,
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hci.HCI_LE_SCAN_REQUEST_RECEIVED_EVENT,
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hci.HCI_LE_CONNECTIONLESS_IQ_REPORT_EVENT,
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hci.HCI_LE_CONNECTION_IQ_REPORT_EVENT,
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hci.HCI_LE_CTE_REQUEST_FAILED_EVENT,
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hci.HCI_LE_PERIODIC_ADVERTISING_SYNC_TRANSFER_RECEIVED_EVENT,
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hci.HCI_LE_CIS_ESTABLISHED_EVENT,
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hci.HCI_LE_CIS_REQUEST_EVENT,
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hci.HCI_LE_CREATE_BIG_COMPLETE_EVENT,
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hci.HCI_LE_TERMINATE_BIG_COMPLETE_EVENT,
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hci.HCI_LE_BIG_SYNC_ESTABLISHED_EVENT,
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hci.HCI_LE_BIG_SYNC_LOST_EVENT,
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hci.HCI_LE_REQUEST_PEER_SCA_COMPLETE_EVENT,
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hci.HCI_LE_PATH_LOSS_THRESHOLD_EVENT,
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hci.HCI_LE_TRANSMIT_POWER_REPORTING_EVENT,
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hci.HCI_LE_BIGINFO_ADVERTISING_REPORT_EVENT,
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hci.HCI_LE_SUBRATE_CHANGE_EVENT,
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hci.HCI_LE_CS_READ_REMOTE_SUPPORTED_CAPABILITIES_COMPLETE_EVENT,
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hci.HCI_LE_CS_PROCEDURE_ENABLE_COMPLETE_EVENT,
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hci.HCI_LE_CS_SECURITY_ENABLE_COMPLETE_EVENT,
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hci.HCI_LE_CS_CONFIG_COMPLETE_EVENT,
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hci.HCI_LE_CS_SUBEVENT_RESULT_EVENT,
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hci.HCI_LE_CS_SUBEVENT_RESULT_CONTINUE_EVENT,
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]
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)
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await self.send_command(
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hci.HCI_LE_Set_Event_Mask_Command(le_event_mask=le_event_mask)
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)
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|
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if self.supports_command(hci.HCI_READ_BUFFER_SIZE_COMMAND):
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response = await self.send_command(
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hci.HCI_Read_Buffer_Size_Command(), check_result=True
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)
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hc_acl_data_packet_length = (
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response.return_parameters.hc_acl_data_packet_length
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)
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hc_total_num_acl_data_packets = (
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response.return_parameters.hc_total_num_acl_data_packets
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)
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logger.debug(
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'HCI ACL flow control: '
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f'hc_acl_data_packet_length={hc_acl_data_packet_length},'
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f'hc_total_num_acl_data_packets={hc_total_num_acl_data_packets}'
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)
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self.acl_packet_queue = AclPacketQueue(
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max_packet_size=hc_acl_data_packet_length,
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max_in_flight=hc_total_num_acl_data_packets,
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send=self.send_hci_packet,
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)
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hc_le_acl_data_packet_length = 0
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hc_total_num_le_acl_data_packets = 0
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if self.supports_command(hci.HCI_LE_READ_BUFFER_SIZE_COMMAND):
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response = await self.send_command(
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hci.HCI_LE_Read_Buffer_Size_Command(), check_result=True
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)
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hc_le_acl_data_packet_length = (
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response.return_parameters.hc_le_acl_data_packet_length
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)
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hc_total_num_le_acl_data_packets = (
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response.return_parameters.hc_total_num_le_acl_data_packets
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)
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logger.debug(
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'HCI LE ACL flow control: '
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f'hc_le_acl_data_packet_length={hc_le_acl_data_packet_length},'
|
|
f'hc_total_num_le_acl_data_packets={hc_total_num_le_acl_data_packets}'
|
|
)
|
|
|
|
if hc_le_acl_data_packet_length == 0 or hc_total_num_le_acl_data_packets == 0:
|
|
# LE and Classic share the same queue
|
|
self.le_acl_packet_queue = self.acl_packet_queue
|
|
else:
|
|
# Create a separate queue for LE
|
|
self.le_acl_packet_queue = AclPacketQueue(
|
|
max_packet_size=hc_le_acl_data_packet_length,
|
|
max_in_flight=hc_total_num_le_acl_data_packets,
|
|
send=self.send_hci_packet,
|
|
)
|
|
|
|
if self.supports_command(
|
|
hci.HCI_LE_READ_SUGGESTED_DEFAULT_DATA_LENGTH_COMMAND
|
|
) and self.supports_command(
|
|
hci.HCI_LE_WRITE_SUGGESTED_DEFAULT_DATA_LENGTH_COMMAND
|
|
):
|
|
response = await self.send_command(
|
|
hci.HCI_LE_Read_Suggested_Default_Data_Length_Command()
|
|
)
|
|
suggested_max_tx_octets = response.return_parameters.suggested_max_tx_octets
|
|
suggested_max_tx_time = response.return_parameters.suggested_max_tx_time
|
|
if (
|
|
suggested_max_tx_octets != self.suggested_max_tx_octets
|
|
or suggested_max_tx_time != self.suggested_max_tx_time
|
|
):
|
|
await self.send_command(
|
|
hci.HCI_LE_Write_Suggested_Default_Data_Length_Command(
|
|
suggested_max_tx_octets=self.suggested_max_tx_octets,
|
|
suggested_max_tx_time=self.suggested_max_tx_time,
|
|
)
|
|
)
|
|
|
|
if self.supports_command(
|
|
hci.HCI_LE_READ_NUMBER_OF_SUPPORTED_ADVERTISING_SETS_COMMAND
|
|
):
|
|
response = await self.send_command(
|
|
hci.HCI_LE_Read_Number_Of_Supported_Advertising_Sets_Command(),
|
|
check_result=True,
|
|
)
|
|
self.number_of_supported_advertising_sets = (
|
|
response.return_parameters.num_supported_advertising_sets
|
|
)
|
|
|
|
if self.supports_command(
|
|
hci.HCI_LE_READ_MAXIMUM_ADVERTISING_DATA_LENGTH_COMMAND
|
|
):
|
|
response = await self.send_command(
|
|
hci.HCI_LE_Read_Maximum_Advertising_Data_Length_Command(),
|
|
check_result=True,
|
|
)
|
|
self.maximum_advertising_data_length = (
|
|
response.return_parameters.max_advertising_data_length
|
|
)
|
|
|
|
@property
|
|
def controller(self) -> Optional[TransportSink]:
|
|
return self.hci_sink
|
|
|
|
@controller.setter
|
|
def controller(self, controller) -> None:
|
|
self.set_packet_sink(controller)
|
|
if controller:
|
|
self.set_packet_source(controller)
|
|
|
|
def set_packet_sink(self, sink: Optional[TransportSink]) -> None:
|
|
self.hci_sink = sink
|
|
|
|
def set_packet_source(self, source: TransportSource) -> None:
|
|
source.set_packet_sink(self)
|
|
self.hci_metadata = getattr(source, 'metadata', self.hci_metadata)
|
|
|
|
def send_hci_packet(self, packet: hci.HCI_Packet) -> None:
|
|
logger.debug(f'{color("### HOST -> CONTROLLER", "blue")}: {packet}')
|
|
if self.snooper:
|
|
self.snooper.snoop(bytes(packet), Snooper.Direction.HOST_TO_CONTROLLER)
|
|
if self.hci_sink:
|
|
self.hci_sink.on_packet(bytes(packet))
|
|
|
|
async def send_command(
|
|
self, command, check_result=False, response_timeout: Optional[int] = None
|
|
):
|
|
# Wait until we can send (only one pending command at a time)
|
|
async with self.command_semaphore:
|
|
assert self.pending_command is None
|
|
assert self.pending_response is None
|
|
|
|
# Create a future value to hold the eventual response
|
|
self.pending_response = asyncio.get_running_loop().create_future()
|
|
self.pending_command = command
|
|
|
|
try:
|
|
self.send_hci_packet(command)
|
|
await asyncio.wait_for(self.pending_response, timeout=response_timeout)
|
|
response = self.pending_response.result()
|
|
|
|
# Check the return parameters if required
|
|
if check_result:
|
|
if isinstance(response, hci.HCI_Command_Status_Event):
|
|
status = response.status # type: ignore[attr-defined]
|
|
elif isinstance(response.return_parameters, int):
|
|
status = response.return_parameters
|
|
elif isinstance(response.return_parameters, bytes):
|
|
# return parameters first field is a one byte status code
|
|
status = response.return_parameters[0]
|
|
else:
|
|
status = response.return_parameters.status
|
|
|
|
if status != hci.HCI_SUCCESS:
|
|
logger.warning(
|
|
f'{command.name} failed '
|
|
f'({hci.HCI_Constant.error_name(status)})'
|
|
)
|
|
raise hci.HCI_Error(status)
|
|
|
|
return response
|
|
except Exception as error:
|
|
logger.exception(
|
|
f'{color("!!! Exception while sending command:", "red")} {error}'
|
|
)
|
|
raise error
|
|
finally:
|
|
self.pending_command = None
|
|
self.pending_response = None
|
|
|
|
# Use this method to send a command from a task
|
|
def send_command_sync(self, command: hci.HCI_Command) -> None:
|
|
async def send_command(command: hci.HCI_Command) -> None:
|
|
await self.send_command(command)
|
|
|
|
asyncio.create_task(send_command(command))
|
|
|
|
def send_l2cap_pdu(self, connection_handle: int, cid: int, pdu: bytes) -> None:
|
|
if not (connection := self.connections.get(connection_handle)):
|
|
logger.warning(f'connection 0x{connection_handle:04X} not found')
|
|
return
|
|
packet_queue = connection.acl_packet_queue
|
|
if packet_queue is None:
|
|
logger.warning(
|
|
f'no ACL packet queue for connection 0x{connection_handle:04X}'
|
|
)
|
|
return
|
|
|
|
# Create a PDU
|
|
l2cap_pdu = bytes(L2CAP_PDU(cid, pdu))
|
|
|
|
# Send the data to the controller via ACL packets
|
|
bytes_remaining = len(l2cap_pdu)
|
|
offset = 0
|
|
pb_flag = 0
|
|
while bytes_remaining:
|
|
data_total_length = min(bytes_remaining, packet_queue.max_packet_size)
|
|
acl_packet = hci.HCI_AclDataPacket(
|
|
connection_handle=connection_handle,
|
|
pb_flag=pb_flag,
|
|
bc_flag=0,
|
|
data_total_length=data_total_length,
|
|
data=l2cap_pdu[offset : offset + data_total_length],
|
|
)
|
|
logger.debug(f'>>> ACL packet enqueue: (CID={cid}) {acl_packet}')
|
|
packet_queue.enqueue(acl_packet)
|
|
pb_flag = 1
|
|
offset += data_total_length
|
|
bytes_remaining -= data_total_length
|
|
|
|
def supports_command(self, op_code: int) -> bool:
|
|
return (
|
|
self.local_supported_commands
|
|
& hci.HCI_SUPPORTED_COMMANDS_MASKS.get(op_code, 0)
|
|
) != 0
|
|
|
|
@property
|
|
def supported_commands(self) -> Set[int]:
|
|
return set(
|
|
op_code
|
|
for op_code, mask in hci.HCI_SUPPORTED_COMMANDS_MASKS.items()
|
|
if self.local_supported_commands & mask
|
|
)
|
|
|
|
def supports_le_features(self, feature: hci.LeFeatureMask) -> bool:
|
|
return (self.local_le_features & feature) == feature
|
|
|
|
def supports_lmp_features(self, feature: hci.LmpFeatureMask) -> bool:
|
|
return self.local_lmp_features & (feature) == feature
|
|
|
|
@property
|
|
def supported_le_features(self):
|
|
return [
|
|
feature for feature in range(64) if self.local_le_features & (1 << feature)
|
|
]
|
|
|
|
# Packet Sink protocol (packets coming from the controller via HCI)
|
|
def on_packet(self, packet: bytes) -> None:
|
|
try:
|
|
hci_packet = hci.HCI_Packet.from_bytes(packet)
|
|
except Exception as error:
|
|
logger.warning(f'!!! error parsing packet from bytes: {error}')
|
|
return
|
|
|
|
if self.ready or (
|
|
isinstance(hci_packet, hci.HCI_Command_Complete_Event)
|
|
and hci_packet.command_opcode == hci.HCI_RESET_COMMAND
|
|
):
|
|
self.on_hci_packet(hci_packet)
|
|
else:
|
|
logger.debug(
|
|
f'reset not done, ignoring packet from controller: {hci_packet}'
|
|
)
|
|
|
|
def on_transport_lost(self):
|
|
# Called by the source when the transport has been lost.
|
|
if self.pending_response:
|
|
self.pending_response.set_exception(TransportLostError('transport lost'))
|
|
|
|
self.emit('flush')
|
|
|
|
def on_hci_packet(self, packet: hci.HCI_Packet) -> None:
|
|
logger.debug(f'{color("### CONTROLLER -> HOST", "green")}: {packet}')
|
|
|
|
if self.snooper:
|
|
self.snooper.snoop(bytes(packet), Snooper.Direction.CONTROLLER_TO_HOST)
|
|
|
|
# If the packet is a command, invoke the handler for this packet
|
|
if packet.hci_packet_type == hci.HCI_COMMAND_PACKET:
|
|
self.on_hci_command_packet(cast(hci.HCI_Command, packet))
|
|
elif packet.hci_packet_type == hci.HCI_EVENT_PACKET:
|
|
self.on_hci_event_packet(cast(hci.HCI_Event, packet))
|
|
elif packet.hci_packet_type == hci.HCI_ACL_DATA_PACKET:
|
|
self.on_hci_acl_data_packet(cast(hci.HCI_AclDataPacket, packet))
|
|
elif packet.hci_packet_type == hci.HCI_SYNCHRONOUS_DATA_PACKET:
|
|
self.on_hci_sco_data_packet(cast(hci.HCI_SynchronousDataPacket, packet))
|
|
elif packet.hci_packet_type == hci.HCI_ISO_DATA_PACKET:
|
|
self.on_hci_iso_data_packet(cast(hci.HCI_IsoDataPacket, packet))
|
|
else:
|
|
logger.warning(f'!!! unknown packet type {packet.hci_packet_type}')
|
|
|
|
def on_hci_command_packet(self, command: hci.HCI_Command) -> None:
|
|
logger.warning(f'!!! unexpected command packet: {command}')
|
|
|
|
def on_hci_event_packet(self, event: hci.HCI_Event) -> None:
|
|
handler_name = f'on_{event.name.lower()}'
|
|
handler = getattr(self, handler_name, self.on_hci_event)
|
|
handler(event)
|
|
|
|
def on_hci_acl_data_packet(self, packet: hci.HCI_AclDataPacket) -> None:
|
|
# Look for the connection to which this data belongs
|
|
if connection := self.connections.get(packet.connection_handle):
|
|
connection.on_hci_acl_data_packet(packet)
|
|
|
|
def on_hci_sco_data_packet(self, packet: hci.HCI_SynchronousDataPacket) -> None:
|
|
# Experimental
|
|
self.emit('sco_packet', packet.connection_handle, packet)
|
|
|
|
def on_hci_iso_data_packet(self, packet: hci.HCI_IsoDataPacket) -> None:
|
|
# Experimental
|
|
self.emit('iso_packet', packet.connection_handle, packet)
|
|
|
|
def on_l2cap_pdu(self, connection: Connection, cid: int, pdu: bytes) -> None:
|
|
self.emit('l2cap_pdu', connection.handle, cid, pdu)
|
|
|
|
def on_command_processed(self, event):
|
|
if self.pending_response:
|
|
# Check that it is what we were expecting
|
|
if self.pending_command.op_code != event.command_opcode:
|
|
logger.warning(
|
|
'!!! command result mismatch, expected '
|
|
f'0x{self.pending_command.op_code:X} but got '
|
|
f'0x{event.command_opcode:X}'
|
|
)
|
|
|
|
self.pending_response.set_result(event)
|
|
else:
|
|
logger.warning('!!! no pending response future to set')
|
|
|
|
############################################################
|
|
# HCI handlers
|
|
############################################################
|
|
def on_hci_event(self, event):
|
|
logger.warning(f'{color(f"--- Ignoring event {event}", "red")}')
|
|
|
|
def on_hci_command_complete_event(self, event):
|
|
if event.command_opcode == 0:
|
|
# This is used just for the Num_HCI_Command_Packets field, not related to
|
|
# an actual command
|
|
logger.debug('no-command event')
|
|
return
|
|
|
|
return self.on_command_processed(event)
|
|
|
|
def on_hci_command_status_event(self, event):
|
|
return self.on_command_processed(event)
|
|
|
|
def on_hci_number_of_completed_packets_event(self, event):
|
|
for connection_handle, num_completed_packets in zip(
|
|
event.connection_handles, event.num_completed_packets
|
|
):
|
|
if connection := self.connections.get(connection_handle):
|
|
connection.acl_packet_queue.on_packets_completed(num_completed_packets)
|
|
elif connection_handle not in itertools.chain(
|
|
self.cis_links.keys(),
|
|
self.sco_links.keys(),
|
|
itertools.chain.from_iterable(self.bigs.values()),
|
|
):
|
|
logger.warning(
|
|
'received packet completion event for unknown handle '
|
|
f'0x{connection_handle:04X}'
|
|
)
|
|
|
|
# Classic only
|
|
def on_hci_connection_request_event(self, event):
|
|
# Notify the listeners
|
|
self.emit(
|
|
'connection_request',
|
|
event.bd_addr,
|
|
event.class_of_device,
|
|
event.link_type,
|
|
)
|
|
|
|
def on_hci_le_connection_complete_event(self, event):
|
|
# Check if this is a cancellation
|
|
if event.status == hci.HCI_SUCCESS:
|
|
# Create/update the connection
|
|
logger.debug(
|
|
f'### LE CONNECTION: [0x{event.connection_handle:04X}] '
|
|
f'{event.peer_address} as {hci.HCI_Constant.role_name(event.role)}'
|
|
)
|
|
|
|
connection = self.connections.get(event.connection_handle)
|
|
if connection is None:
|
|
connection = Connection(
|
|
self,
|
|
event.connection_handle,
|
|
event.peer_address,
|
|
BT_LE_TRANSPORT,
|
|
)
|
|
self.connections[event.connection_handle] = connection
|
|
|
|
# Notify the client
|
|
connection_parameters = ConnectionParameters(
|
|
event.connection_interval,
|
|
event.peripheral_latency,
|
|
event.supervision_timeout,
|
|
)
|
|
self.emit(
|
|
'connection',
|
|
event.connection_handle,
|
|
BT_LE_TRANSPORT,
|
|
event.peer_address,
|
|
getattr(event, 'local_resolvable_private_address', None),
|
|
getattr(event, 'peer_resolvable_private_address', None),
|
|
event.role,
|
|
connection_parameters,
|
|
)
|
|
else:
|
|
logger.debug(f'### CONNECTION FAILED: {event.status}')
|
|
|
|
# Notify the listeners
|
|
self.emit(
|
|
'connection_failure', BT_LE_TRANSPORT, event.peer_address, event.status
|
|
)
|
|
|
|
def on_hci_le_enhanced_connection_complete_event(self, event):
|
|
# Just use the same implementation as for the non-enhanced event for now
|
|
self.on_hci_le_connection_complete_event(event)
|
|
|
|
def on_hci_le_enhanced_connection_complete_v2_event(self, event):
|
|
# Just use the same implementation as for the v1 event for now
|
|
self.on_hci_le_enhanced_connection_complete_event(event)
|
|
|
|
def on_hci_connection_complete_event(self, event):
|
|
if event.status == hci.HCI_SUCCESS:
|
|
# Create/update the connection
|
|
logger.debug(
|
|
f'### BR/EDR CONNECTION: [0x{event.connection_handle:04X}] '
|
|
f'{event.bd_addr}'
|
|
)
|
|
|
|
connection = self.connections.get(event.connection_handle)
|
|
if connection is None:
|
|
connection = Connection(
|
|
self,
|
|
event.connection_handle,
|
|
event.bd_addr,
|
|
BT_BR_EDR_TRANSPORT,
|
|
)
|
|
self.connections[event.connection_handle] = connection
|
|
|
|
# Notify the client
|
|
self.emit(
|
|
'connection',
|
|
event.connection_handle,
|
|
BT_BR_EDR_TRANSPORT,
|
|
event.bd_addr,
|
|
None,
|
|
None,
|
|
None,
|
|
None,
|
|
)
|
|
else:
|
|
logger.debug(f'### BR/EDR CONNECTION FAILED: {event.status}')
|
|
|
|
# Notify the client
|
|
self.emit(
|
|
'connection_failure', BT_BR_EDR_TRANSPORT, event.bd_addr, event.status
|
|
)
|
|
|
|
def on_hci_disconnection_complete_event(self, event):
|
|
# Find the connection
|
|
handle = event.connection_handle
|
|
if (
|
|
connection := (
|
|
self.connections.get(handle)
|
|
or self.cis_links.get(handle)
|
|
or self.sco_links.get(handle)
|
|
)
|
|
) is None:
|
|
logger.warning('!!! DISCONNECTION COMPLETE: unknown handle')
|
|
return
|
|
|
|
if event.status == hci.HCI_SUCCESS:
|
|
logger.debug(
|
|
f'### DISCONNECTION: [0x{handle:04X}] '
|
|
f'{connection.peer_address} '
|
|
f'reason={event.reason}'
|
|
)
|
|
|
|
# Notify the listeners
|
|
self.emit('disconnection', handle, event.reason)
|
|
|
|
# Remove the handle reference
|
|
_ = (
|
|
self.connections.pop(handle, 0)
|
|
or self.cis_links.pop(handle, 0)
|
|
or self.sco_links.pop(handle, 0)
|
|
)
|
|
else:
|
|
logger.debug(f'### DISCONNECTION FAILED: {event.status}')
|
|
|
|
# Notify the listeners
|
|
self.emit('disconnection_failure', handle, event.status)
|
|
|
|
def on_hci_le_connection_update_complete_event(self, event):
|
|
if (connection := self.connections.get(event.connection_handle)) is None:
|
|
logger.warning('!!! CONNECTION PARAMETERS UPDATE COMPLETE: unknown handle')
|
|
return
|
|
|
|
# Notify the client
|
|
if event.status == hci.HCI_SUCCESS:
|
|
connection_parameters = ConnectionParameters(
|
|
event.connection_interval,
|
|
event.peripheral_latency,
|
|
event.supervision_timeout,
|
|
)
|
|
self.emit(
|
|
'connection_parameters_update', connection.handle, connection_parameters
|
|
)
|
|
else:
|
|
self.emit(
|
|
'connection_parameters_update_failure', connection.handle, event.status
|
|
)
|
|
|
|
def on_hci_le_phy_update_complete_event(self, event):
|
|
if (connection := self.connections.get(event.connection_handle)) is None:
|
|
logger.warning('!!! CONNECTION PHY UPDATE COMPLETE: unknown handle')
|
|
return
|
|
|
|
# Notify the client
|
|
if event.status == hci.HCI_SUCCESS:
|
|
connection_phy = ConnectionPHY(event.tx_phy, event.rx_phy)
|
|
self.emit('connection_phy_update', connection.handle, connection_phy)
|
|
else:
|
|
self.emit('connection_phy_update_failure', connection.handle, event.status)
|
|
|
|
def on_hci_le_advertising_report_event(self, event):
|
|
for report in event.reports:
|
|
self.emit('advertising_report', report)
|
|
|
|
def on_hci_le_extended_advertising_report_event(self, event):
|
|
self.on_hci_le_advertising_report_event(event)
|
|
|
|
def on_hci_le_advertising_set_terminated_event(self, event):
|
|
self.emit(
|
|
'advertising_set_termination',
|
|
event.status,
|
|
event.advertising_handle,
|
|
event.connection_handle,
|
|
event.num_completed_extended_advertising_events,
|
|
)
|
|
|
|
def on_hci_le_periodic_advertising_sync_established_event(self, event):
|
|
self.emit(
|
|
'periodic_advertising_sync_establishment',
|
|
event.status,
|
|
event.sync_handle,
|
|
event.advertising_sid,
|
|
event.advertiser_address,
|
|
event.advertiser_phy,
|
|
event.periodic_advertising_interval,
|
|
event.advertiser_clock_accuracy,
|
|
)
|
|
|
|
def on_hci_le_periodic_advertising_sync_lost_event(self, event):
|
|
self.emit('periodic_advertising_sync_loss', event.sync_handle)
|
|
|
|
def on_hci_le_periodic_advertising_report_event(self, event):
|
|
self.emit('periodic_advertising_report', event.sync_handle, event)
|
|
|
|
def on_hci_le_biginfo_advertising_report_event(self, event):
|
|
self.emit('biginfo_advertising_report', event.sync_handle, event)
|
|
|
|
def on_hci_le_cis_request_event(self, event):
|
|
self.emit(
|
|
'cis_request',
|
|
event.acl_connection_handle,
|
|
event.cis_connection_handle,
|
|
event.cig_id,
|
|
event.cis_id,
|
|
)
|
|
|
|
def on_hci_le_create_big_complete_event(self, event):
|
|
self.bigs[event.big_handle] = set(event.connection_handle)
|
|
self.emit(
|
|
'big_establishment',
|
|
event.status,
|
|
event.big_handle,
|
|
event.connection_handle,
|
|
event.big_sync_delay,
|
|
event.transport_latency_big,
|
|
event.phy,
|
|
event.nse,
|
|
event.bn,
|
|
event.pto,
|
|
event.irc,
|
|
event.max_pdu,
|
|
event.iso_interval,
|
|
)
|
|
|
|
def on_hci_le_big_sync_established_event(self, event):
|
|
self.emit(
|
|
'big_sync_establishment',
|
|
event.status,
|
|
event.big_handle,
|
|
event.transport_latency_big,
|
|
event.nse,
|
|
event.bn,
|
|
event.pto,
|
|
event.irc,
|
|
event.max_pdu,
|
|
event.iso_interval,
|
|
event.connection_handle,
|
|
)
|
|
|
|
def on_hci_le_big_sync_lost_event(self, event):
|
|
self.emit(
|
|
'big_sync_lost',
|
|
event.big_handle,
|
|
event.reason,
|
|
)
|
|
|
|
def on_hci_le_terminate_big_complete_event(self, event):
|
|
self.bigs.pop(event.big_handle)
|
|
self.emit('big_termination', event.reason, event.big_handle)
|
|
|
|
def on_hci_le_cis_established_event(self, event):
|
|
# The remaining parameters are unused for now.
|
|
if event.status == hci.HCI_SUCCESS:
|
|
self.cis_links[event.connection_handle] = CisLink(
|
|
handle=event.connection_handle,
|
|
peer_address=hci.Address.ANY,
|
|
)
|
|
self.emit('cis_establishment', event.connection_handle)
|
|
else:
|
|
self.emit(
|
|
'cis_establishment_failure', event.connection_handle, event.status
|
|
)
|
|
|
|
def on_hci_le_remote_connection_parameter_request_event(self, event):
|
|
if event.connection_handle not in self.connections:
|
|
logger.warning('!!! REMOTE CONNECTION PARAMETER REQUEST: unknown handle')
|
|
return
|
|
|
|
# For now, just accept everything
|
|
# TODO: delegate the decision
|
|
self.send_command_sync(
|
|
hci.HCI_LE_Remote_Connection_Parameter_Request_Reply_Command(
|
|
connection_handle=event.connection_handle,
|
|
interval_min=event.interval_min,
|
|
interval_max=event.interval_max,
|
|
max_latency=event.max_latency,
|
|
timeout=event.timeout,
|
|
min_ce_length=0,
|
|
max_ce_length=0,
|
|
)
|
|
)
|
|
|
|
def on_hci_le_long_term_key_request_event(self, event):
|
|
if (connection := self.connections.get(event.connection_handle)) is None:
|
|
logger.warning('!!! LE LONG TERM KEY REQUEST: unknown handle')
|
|
return
|
|
|
|
async def send_long_term_key():
|
|
if self.long_term_key_provider is None:
|
|
logger.debug('no long term key provider')
|
|
long_term_key = None
|
|
else:
|
|
long_term_key = await self.abort_on(
|
|
'flush',
|
|
# pylint: disable-next=not-callable
|
|
self.long_term_key_provider(
|
|
connection.handle,
|
|
event.random_number,
|
|
event.encryption_diversifier,
|
|
),
|
|
)
|
|
if long_term_key:
|
|
response = hci.HCI_LE_Long_Term_Key_Request_Reply_Command(
|
|
connection_handle=event.connection_handle,
|
|
long_term_key=long_term_key,
|
|
)
|
|
else:
|
|
response = hci.HCI_LE_Long_Term_Key_Request_Negative_Reply_Command(
|
|
connection_handle=event.connection_handle
|
|
)
|
|
|
|
await self.send_command(response)
|
|
|
|
asyncio.create_task(send_long_term_key())
|
|
|
|
def on_hci_synchronous_connection_complete_event(self, event):
|
|
if event.status == hci.HCI_SUCCESS:
|
|
# Create/update the connection
|
|
logger.debug(
|
|
f'### SCO CONNECTION: [0x{event.connection_handle:04X}] '
|
|
f'{event.bd_addr}'
|
|
)
|
|
|
|
self.sco_links[event.connection_handle] = ScoLink(
|
|
peer_address=event.bd_addr,
|
|
handle=event.connection_handle,
|
|
)
|
|
|
|
# Notify the client
|
|
self.emit(
|
|
'sco_connection',
|
|
event.bd_addr,
|
|
event.connection_handle,
|
|
event.link_type,
|
|
)
|
|
else:
|
|
logger.debug(f'### SCO CONNECTION FAILED: {event.status}')
|
|
|
|
# Notify the client
|
|
self.emit('sco_connection_failure', event.bd_addr, event.status)
|
|
|
|
def on_hci_synchronous_connection_changed_event(self, event):
|
|
pass
|
|
|
|
def on_hci_role_change_event(self, event):
|
|
if event.status == hci.HCI_SUCCESS:
|
|
logger.debug(
|
|
f'role change for {event.bd_addr}: '
|
|
f'{hci.HCI_Constant.role_name(event.new_role)}'
|
|
)
|
|
self.emit('role_change', event.bd_addr, event.new_role)
|
|
else:
|
|
logger.debug(
|
|
f'role change for {event.bd_addr} failed: '
|
|
f'{hci.HCI_Constant.error_name(event.status)}'
|
|
)
|
|
self.emit('role_change_failure', event.bd_addr, event.status)
|
|
|
|
def on_hci_le_data_length_change_event(self, event):
|
|
self.emit(
|
|
'connection_data_length_change',
|
|
event.connection_handle,
|
|
event.max_tx_octets,
|
|
event.max_tx_time,
|
|
event.max_rx_octets,
|
|
event.max_rx_time,
|
|
)
|
|
|
|
def on_hci_authentication_complete_event(self, event):
|
|
# Notify the client
|
|
if event.status == hci.HCI_SUCCESS:
|
|
self.emit('connection_authentication', event.connection_handle)
|
|
else:
|
|
self.emit(
|
|
'connection_authentication_failure',
|
|
event.connection_handle,
|
|
event.status,
|
|
)
|
|
|
|
def on_hci_encryption_change_event(self, event):
|
|
# Notify the client
|
|
if event.status == hci.HCI_SUCCESS:
|
|
self.emit(
|
|
'connection_encryption_change',
|
|
event.connection_handle,
|
|
event.encryption_enabled,
|
|
)
|
|
else:
|
|
self.emit(
|
|
'connection_encryption_failure', event.connection_handle, event.status
|
|
)
|
|
|
|
def on_hci_encryption_key_refresh_complete_event(self, event):
|
|
# Notify the client
|
|
if event.status == hci.HCI_SUCCESS:
|
|
self.emit('connection_encryption_key_refresh', event.connection_handle)
|
|
else:
|
|
self.emit(
|
|
'connection_encryption_key_refresh_failure',
|
|
event.connection_handle,
|
|
event.status,
|
|
)
|
|
|
|
def on_hci_qos_setup_complete_event(self, event):
|
|
if event.status == hci.HCI_SUCCESS:
|
|
self.emit(
|
|
'connection_qos_setup', event.connection_handle, event.service_type
|
|
)
|
|
else:
|
|
self.emit(
|
|
'connection_qos_setup_failure',
|
|
event.connection_handle,
|
|
event.status,
|
|
)
|
|
|
|
def on_hci_link_supervision_timeout_changed_event(self, event):
|
|
pass
|
|
|
|
def on_hci_max_slots_change_event(self, event):
|
|
pass
|
|
|
|
def on_hci_page_scan_repetition_mode_change_event(self, event):
|
|
pass
|
|
|
|
def on_hci_link_key_notification_event(self, event):
|
|
logger.debug(
|
|
f'link key for {event.bd_addr}: {event.link_key.hex()}, '
|
|
f'type={hci.HCI_Constant.link_key_type_name(event.key_type)}'
|
|
)
|
|
self.emit('link_key', event.bd_addr, event.link_key, event.key_type)
|
|
|
|
def on_hci_simple_pairing_complete_event(self, event):
|
|
logger.debug(
|
|
f'simple pairing complete for {event.bd_addr}: '
|
|
f'status={hci.HCI_Constant.status_name(event.status)}'
|
|
)
|
|
if event.status == hci.HCI_SUCCESS:
|
|
self.emit('classic_pairing', event.bd_addr)
|
|
else:
|
|
self.emit('classic_pairing_failure', event.bd_addr, event.status)
|
|
|
|
def on_hci_pin_code_request_event(self, event):
|
|
self.emit('pin_code_request', event.bd_addr)
|
|
|
|
def on_hci_link_key_request_event(self, event):
|
|
async def send_link_key():
|
|
if self.link_key_provider is None:
|
|
logger.debug('no link key provider')
|
|
link_key = None
|
|
else:
|
|
link_key = await self.abort_on(
|
|
'flush',
|
|
# pylint: disable-next=not-callable
|
|
self.link_key_provider(event.bd_addr),
|
|
)
|
|
if link_key:
|
|
response = hci.HCI_Link_Key_Request_Reply_Command(
|
|
bd_addr=event.bd_addr, link_key=link_key
|
|
)
|
|
else:
|
|
response = hci.HCI_Link_Key_Request_Negative_Reply_Command(
|
|
bd_addr=event.bd_addr
|
|
)
|
|
|
|
await self.send_command(response)
|
|
|
|
asyncio.create_task(send_link_key())
|
|
|
|
def on_hci_io_capability_request_event(self, event):
|
|
self.emit('authentication_io_capability_request', event.bd_addr)
|
|
|
|
def on_hci_io_capability_response_event(self, event):
|
|
self.emit(
|
|
'authentication_io_capability_response',
|
|
event.bd_addr,
|
|
event.io_capability,
|
|
event.authentication_requirements,
|
|
)
|
|
|
|
def on_hci_user_confirmation_request_event(self, event):
|
|
self.emit(
|
|
'authentication_user_confirmation_request',
|
|
event.bd_addr,
|
|
event.numeric_value,
|
|
)
|
|
|
|
def on_hci_user_passkey_request_event(self, event):
|
|
self.emit('authentication_user_passkey_request', event.bd_addr)
|
|
|
|
def on_hci_user_passkey_notification_event(self, event):
|
|
self.emit(
|
|
'authentication_user_passkey_notification', event.bd_addr, event.passkey
|
|
)
|
|
|
|
def on_hci_inquiry_complete_event(self, _event):
|
|
self.emit('inquiry_complete')
|
|
|
|
def on_hci_inquiry_result_with_rssi_event(self, event):
|
|
for response in event.responses:
|
|
self.emit(
|
|
'inquiry_result',
|
|
response.bd_addr,
|
|
response.class_of_device,
|
|
b'',
|
|
response.rssi,
|
|
)
|
|
|
|
def on_hci_extended_inquiry_result_event(self, event):
|
|
self.emit(
|
|
'inquiry_result',
|
|
event.bd_addr,
|
|
event.class_of_device,
|
|
event.extended_inquiry_response,
|
|
event.rssi,
|
|
)
|
|
|
|
def on_hci_remote_name_request_complete_event(self, event):
|
|
if event.status != hci.HCI_SUCCESS:
|
|
self.emit('remote_name_failure', event.bd_addr, event.status)
|
|
else:
|
|
utf8_name = event.remote_name
|
|
terminator = utf8_name.find(0)
|
|
if terminator >= 0:
|
|
utf8_name = utf8_name[0:terminator]
|
|
|
|
self.emit('remote_name', event.bd_addr, utf8_name)
|
|
|
|
def on_hci_remote_host_supported_features_notification_event(self, event):
|
|
self.emit(
|
|
'remote_host_supported_features',
|
|
event.bd_addr,
|
|
event.host_supported_features,
|
|
)
|
|
|
|
def on_hci_le_read_remote_features_complete_event(self, event):
|
|
if event.status != hci.HCI_SUCCESS:
|
|
self.emit(
|
|
'le_remote_features_failure', event.connection_handle, event.status
|
|
)
|
|
else:
|
|
self.emit(
|
|
'le_remote_features',
|
|
event.connection_handle,
|
|
int.from_bytes(event.le_features, 'little'),
|
|
)
|
|
|
|
def on_hci_le_cs_read_remote_supported_capabilities_complete_event(self, event):
|
|
self.emit('cs_remote_supported_capabilities', event)
|
|
|
|
def on_hci_le_cs_security_enable_complete_event(self, event):
|
|
self.emit('cs_security', event)
|
|
|
|
def on_hci_le_cs_config_complete_event(self, event):
|
|
self.emit('cs_config', event)
|
|
|
|
def on_hci_le_cs_procedure_enable_complete_event(self, event):
|
|
self.emit('cs_procedure', event)
|
|
|
|
def on_hci_le_cs_subevent_result_event(self, event):
|
|
self.emit('cs_subevent_result', event)
|
|
|
|
def on_hci_le_cs_subevent_result_continue_event(self, event):
|
|
self.emit('cs_subevent_result_continue', event)
|
|
|
|
def on_hci_vendor_event(self, event):
|
|
self.emit('vendor_event', event)
|