Merge pull request #780 from google/dependabot/cargo/rust/cargo-ad4b9ff1ea

Bump the cargo group across 1 directory with 5 updates

.github/workflows/python-build-test.yml

@@ -49,7 +49,7 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
-        rust-version: [ "1.76.0", "stable" ]
+        rust-version: [ "1.80.0", "stable" ]
       fail-fast: false
     steps:
       - name: Check out from Git
@@ -72,7 +72,7 @@ jobs:
       - name: Check License Headers
         run: cd rust && cargo run --features dev-tools --bin file-header check-all
       - name: Rust Build
-        run: cd rust && cargo build --all-targets && cargo build-all-features --all-targets
+        run: cd rust && cargo build --all-targets && cargo build-all-features
       # Lints after build so what clippy needs is already built
       - name: Rust Lints
         run: cd rust && cargo fmt --check && cargo clippy --all-targets -- --deny warnings && cargo clippy --all-features --all-targets -- --deny warnings

bumble/controller.py

@@ -33,7 +33,6 @@ from bumble.hci import (
     HCI_COMMAND_DISALLOWED_ERROR,
     HCI_COMMAND_PACKET,
     HCI_COMMAND_STATUS_PENDING,
-    HCI_CONNECTION_TIMEOUT_ERROR,
     HCI_CONTROLLER_BUSY_ERROR,
     HCI_EVENT_PACKET,
     HCI_INVALID_HCI_COMMAND_PARAMETERS_ERROR,
@@ -88,6 +87,7 @@ class CisLink:
     cis_id: int
     cig_id: int
     acl_connection: Optional[Connection] = None
+    data_paths: set[int] = dataclasses.field(default_factory=set)
 
 
 # -----------------------------------------------------------------------------
@@ -381,6 +381,11 @@ class Controller:
                 return connection
         return None
 
+    def find_iso_link_by_handle(self, handle: int) -> Optional[CisLink]:
+        return self.central_cis_links.get(handle) or self.peripheral_cis_links.get(
+            handle
+        )
+
     def on_link_central_connected(self, central_address):
         '''
         Called when an incoming connection occurs from a central on the link
@@ -1853,16 +1858,51 @@ class Controller:
             )
         )
 
-    def on_hci_le_setup_iso_data_path_command(self, command):
+    def on_hci_le_setup_iso_data_path_command(
+        self, command: hci.HCI_LE_Setup_ISO_Data_Path_Command
+    ) -> bytes:
         '''
         See Bluetooth spec Vol 4, Part E - 7.8.109 LE Setup ISO Data Path Command
         '''
+        if not (iso_link := self.find_iso_link_by_handle(command.connection_handle)):
+            return struct.pack(
+                '<BH',
+                HCI_UNKNOWN_CONNECTION_IDENTIFIER_ERROR,
+                command.connection_handle,
+            )
+        if command.data_path_direction in iso_link.data_paths:
+            return struct.pack(
+                '<BH',
+                HCI_COMMAND_DISALLOWED_ERROR,
+                command.connection_handle,
+            )
+        iso_link.data_paths.add(command.data_path_direction)
         return struct.pack('<BH', HCI_SUCCESS, command.connection_handle)
 
-    def on_hci_le_remove_iso_data_path_command(self, command):
+    def on_hci_le_remove_iso_data_path_command(
+        self, command: hci.HCI_LE_Remove_ISO_Data_Path_Command
+    ) -> bytes:
         '''
         See Bluetooth spec Vol 4, Part E - 7.8.110 LE Remove ISO Data Path Command
         '''
+        if not (iso_link := self.find_iso_link_by_handle(command.connection_handle)):
+            return struct.pack(
+                '<BH',
+                HCI_UNKNOWN_CONNECTION_IDENTIFIER_ERROR,
+                command.connection_handle,
+            )
+        data_paths: set[int] = set(
+            direction
+            for direction in hci.HCI_LE_Setup_ISO_Data_Path_Command.Direction
+            if (1 << direction) & command.data_path_direction
+        )
+        if not data_paths.issubset(iso_link.data_paths):
+            return struct.pack(
+                '<BH',
+                HCI_COMMAND_DISALLOWED_ERROR,
+                command.connection_handle,
+            )
+        iso_link.data_paths.difference_update(data_paths)
         return struct.pack('<BH', HCI_SUCCESS, command.connection_handle)
 
     def on_hci_le_set_host_feature_command(

bumble/core.py

@@ -2110,23 +2110,6 @@ class AdvertisingData:
         return self.to_string()
 
 
-# -----------------------------------------------------------------------------
-# Connection Parameters
-# -----------------------------------------------------------------------------
-class ConnectionParameters:
-    def __init__(self, connection_interval, peripheral_latency, supervision_timeout):
-        self.connection_interval = connection_interval
-        self.peripheral_latency = peripheral_latency
-        self.supervision_timeout = supervision_timeout
-
-    def __str__(self):
-        return (
-            f'ConnectionParameters(connection_interval={self.connection_interval}, '
-            f'peripheral_latency={self.peripheral_latency}, '
-            f'supervision_timeout={self.supervision_timeout}'
-        )
-
-
 # -----------------------------------------------------------------------------
 # Connection PHY
 # -----------------------------------------------------------------------------

bumble/device.py

@@ -1453,6 +1453,8 @@ class _IsoLink:
     handle: int
     device: Device
     sink: Callable[[hci.HCI_IsoDataPacket], Any] | None = None
+    data_paths: set[_IsoLink.Direction]
+    _data_path_lock: asyncio.Lock
 
     class Direction(IntEnum):
         HOST_TO_CONTROLLER = (
@@ -1462,6 +1464,10 @@ class _IsoLink:
             hci.HCI_LE_Setup_ISO_Data_Path_Command.Direction.CONTROLLER_TO_HOST
         )
 
+    def __init__(self) -> None:
+        self._data_path_lock = asyncio.Lock()
+        self.data_paths = set()
+
     async def setup_data_path(
         self,
         direction: _IsoLink.Direction,
@@ -1482,37 +1488,45 @@ class _IsoLink:
         Raises:
             HCI_Error: When command complete status is not HCI_SUCCESS.
         """
-        await self.device.send_command(
-            hci.HCI_LE_Setup_ISO_Data_Path_Command(
-                connection_handle=self.handle,
-                data_path_direction=direction,
-                data_path_id=data_path_id,
-                codec_id=codec_id or hci.CodingFormat(hci.CodecID.TRANSPARENT),
-                controller_delay=controller_delay,
-                codec_configuration=codec_configuration,
-            ),
-            check_result=True,
-        )
+        async with self._data_path_lock:
+            if direction in self.data_paths:
+                return
+            await self.device.send_command(
+                hci.HCI_LE_Setup_ISO_Data_Path_Command(
+                    connection_handle=self.handle,
+                    data_path_direction=direction,
+                    data_path_id=data_path_id,
+                    codec_id=codec_id or hci.CodingFormat(hci.CodecID.TRANSPARENT),
+                    controller_delay=controller_delay,
+                    codec_configuration=codec_configuration,
+                ),
+                check_result=True,
+            )
+            self.data_paths.add(direction)
 
-    async def remove_data_path(self, directions: Iterable[_IsoLink.Direction]) -> int:
+    async def remove_data_path(self, directions: Iterable[_IsoLink.Direction]) -> None:
         """Remove a data path with controller on given direction.
 
         Args:
             direction: Direction of data path.
 
-        Returns:
-            Command status.
+        Raises:
+            HCI_Error: When command complete status is not HCI_SUCCESS.
         """
-        response = await self.device.send_command(
-            hci.HCI_LE_Remove_ISO_Data_Path_Command(
-                connection_handle=self.handle,
-                data_path_direction=sum(
-                    1 << direction for direction in set(directions)
+        async with self._data_path_lock:
+            directions_to_remove = set(directions).intersection(self.data_paths)
+            if not directions_to_remove:
+                return
+            await self.device.send_command(
+                hci.HCI_LE_Remove_ISO_Data_Path_Command(
+                    connection_handle=self.handle,
+                    data_path_direction=sum(
+                        1 << direction for direction in directions_to_remove
+                    ),
                 ),
-            ),
-            check_result=False,
-        )
-        return response.return_parameters.status
+                check_result=True,
+            )
+            self.data_paths.difference_update(directions_to_remove)
 
     def write(self, sdu: bytes) -> None:
         """Write an ISO SDU."""
@@ -1622,7 +1636,8 @@ class CisLink(utils.EventEmitter, _IsoLink):
     EVENT_ESTABLISHMENT_FAILURE: ClassVar[str] = "establishment_failure"
 
     def __post_init__(self) -> None:
-        super().__init__()
+        utils.EventEmitter.__init__(self)
+        _IsoLink.__init__(self)
 
     async def disconnect(
         self, reason: int = hci.HCI_REMOTE_USER_TERMINATED_CONNECTION_ERROR
@@ -1638,6 +1653,7 @@ class BisLink(_IsoLink):
     sink: Callable[[hci.HCI_IsoDataPacket], Any] | None = None
 
     def __post_init__(self) -> None:
+        super().__init__()
         self.device = self.big.device
 
 
@@ -1782,15 +1798,22 @@ class Connection(utils.CompositeEventEmitter):
 
     @dataclass
     class Parameters:
-        connection_interval: float  # Connection interval, in milliseconds. [LE only]
-        peripheral_latency: int  # Peripheral latency, in number of intervals. [LE only]
-        supervision_timeout: float  # Supervision timeout, in milliseconds.
-        subrate_factor: int = (
-            1  # See Bluetooth spec Vol 6, Part B - 4.5.1 Connection events
-        )
-        continuation_number: int = (
-            0  # See Bluetooth spec Vol 6, Part B - 4.5.1 Connection events
-        )
+        """
+        LE connection parameters.
+
+        Attributes:
+          connection_interval: Connection interval, in milliseconds.
+          peripheral_latency: Peripheral latency, in number of intervals.
+          supervision_timeout: Supervision timeout, in milliseconds.
+          subrate_factor: See Bluetooth spec Vol 6, Part B - 4.5.1 Connection events
+          continuation_number: See Bluetooth spec Vol 6, Part B - 4.5.1 Connection events
+        """
+
+        connection_interval: float
+        peripheral_latency: int
+        supervision_timeout: float
+        subrate_factor: int = 1
+        continuation_number: int = 0
 
     def __init__(
         self,
@@ -1831,36 +1854,6 @@ class Connection(utils.CompositeEventEmitter):
         self.cs_configs = {}
         self.cs_procedures = {}
 
-    # [Classic only]
-    @classmethod
-    def incomplete(cls, device, peer_address, role):
-        """
-        Instantiate an incomplete connection (ie. one waiting for a HCI Connection
-        Complete event).
-        Once received it shall be completed using the `.complete` method.
-        """
-        return cls(
-            device,
-            None,
-            PhysicalTransport.BR_EDR,
-            device.public_address,
-            None,
-            peer_address,
-            None,
-            role,
-            None,
-        )
-
-    # [Classic only]
-    def complete(self, handle, parameters):
-        """
-        Finish an incomplete connection upon completion.
-        """
-        assert self.handle is None
-        assert self.transport == PhysicalTransport.BR_EDR
-        self.handle = handle
-        self.parameters = parameters
-
     @property
     def role_name(self):
         if self.role is None:
@@ -1872,7 +1865,7 @@ class Connection(utils.CompositeEventEmitter):
         return f'UNKNOWN[{self.role}]'
 
     @property
-    def is_encrypted(self):
+    def is_encrypted(self) -> bool:
         return self.encryption != 0
 
     @property
@@ -2176,12 +2169,12 @@ def with_connection_from_handle(function):
 # Decorator that converts the first argument from a bluetooth address to a connection
 def with_connection_from_address(function):
     @functools.wraps(function)
-    def wrapper(self, address: hci.Address, *args, **kwargs):
-        if connection := self.pending_connections.get(address, False):
-            return function(self, connection, *args, **kwargs)
-        for connection in self.connections.values():
+    def wrapper(device: Device, address: hci.Address, *args, **kwargs):
+        if connection := device.pending_connections.get(address):
+            return function(device, connection, address, *args, **kwargs)
+        for connection in device.connections.values():
             if connection.peer_address == address:
-                return function(self, connection, *args, **kwargs)
+                return function(device, connection, *args, **kwargs)
         raise ObjectLookupError('no connection for address')
 
     return wrapper
@@ -2191,13 +2184,13 @@ def with_connection_from_address(function):
 # connection
 def try_with_connection_from_address(function):
     @functools.wraps(function)
-    def wrapper(self, address, *args, **kwargs):
-        if connection := self.pending_connections.get(address, False):
-            return function(self, connection, address, *args, **kwargs)
-        for connection in self.connections.values():
+    def wrapper(device: Device, address: hci.Address, *args, **kwargs):
+        if connection := device.pending_connections.get(address):
+            return function(device, connection, address, *args, **kwargs)
+        for connection in device.connections.values():
             if connection.peer_address == address:
-                return function(self, connection, address, *args, **kwargs)
-        return function(self, None, address, *args, **kwargs)
+                return function(device, connection, address, *args, **kwargs)
+        return function(device, None, address, *args, **kwargs)
 
     return wrapper
 
@@ -2367,7 +2360,9 @@ class Device(utils.CompositeEventEmitter):
         self.le_connecting = False
         self.disconnecting = False
         self.connections = {}  # Connections, by connection handle
-        self.pending_connections = {}  # Connections, by BD address (BR/EDR only)
+        self.pending_connections = (
+            {}
+        )  # Pending connections, by BD address (BR/EDR only)
         self.sco_links = {}  # ScoLinks, by connection handle (BR/EDR only)
         self.cis_links = {}  # CisLinks, by connection handle (LE only)
         self._pending_cis = {}  # (CIS_ID, CIG_ID), by CIS_handle
@@ -3836,8 +3831,16 @@ class Device(utils.CompositeEventEmitter):
                     )
             else:
                 # Save pending connection
-                self.pending_connections[peer_address] = Connection.incomplete(
-                    self, peer_address, hci.Role.CENTRAL
+                self.pending_connections[peer_address] = Connection(
+                    device=self,
+                    handle=0,
+                    transport=core.PhysicalTransport.BR_EDR,
+                    self_address=self.public_address,
+                    self_resolvable_address=None,
+                    peer_address=peer_address,
+                    peer_resolvable_address=None,
+                    role=hci.Role.CENTRAL,
+                    parameters=Connection.Parameters(0, 0, 0),
                 )
 
                 # TODO: allow passing other settings
@@ -3985,12 +3988,20 @@ class Device(utils.CompositeEventEmitter):
         self.on(self.EVENT_CONNECTION, on_connection)
         self.on(self.EVENT_CONNECTION_FAILURE, on_connection_failure)
 
-        # Save pending connection, with the Peripheral hci.role.
+        # Save Peripheral hci.role.
         # Even if we requested a role switch in the hci.HCI_Accept_Connection_Request
         # command, this connection is still considered Peripheral until an eventual
         # role change event.
-        self.pending_connections[peer_address] = Connection.incomplete(
-            self, peer_address, hci.Role.PERIPHERAL
+        self.pending_connections[peer_address] = Connection(
+            device=self,
+            handle=0,
+            transport=core.PhysicalTransport.BR_EDR,
+            self_address=self.public_address,
+            self_resolvable_address=None,
+            peer_address=peer_address,
+            peer_resolvable_address=None,
+            role=hci.Role.PERIPHERAL,
+            parameters=Connection.Parameters(0, 0, 0),
         )
 
         try:
@@ -5449,15 +5460,47 @@ class Device(utils.CompositeEventEmitter):
         self.emit(self.EVENT_CONNECTION, connection)
 
     @host_event_handler
-    def on_connection(
+    def on_classic_connection(
+        self,
+        connection_handle: int,
+        peer_address: hci.Address,
+    ) -> None:
+        if connection := self.pending_connections.pop(peer_address, None):
+            connection.handle = connection_handle
+        else:
+            # Create a new connection
+            connection = Connection(
+                device=self,
+                handle=connection_handle,
+                transport=PhysicalTransport.BR_EDR,
+                self_address=self.public_address,
+                self_resolvable_address=None,
+                peer_address=peer_address,
+                peer_resolvable_address=None,
+                role=hci.Role.PERIPHERAL,
+                parameters=Connection.Parameters(0.0, 0, 0.0),
+            )
+
+        logger.debug('*** %s', connection)
+        if connection_handle in self.connections:
+            logger.warning(
+                'new connection reuses the same handle as a previous connection'
+            )
+        self.connections[connection_handle] = connection
+
+        self.emit(self.EVENT_CONNECTION, connection)
+
+    @host_event_handler
+    def on_le_connection(
         self,
         connection_handle: int,
-        transport: core.PhysicalTransport,
         peer_address: hci.Address,
         self_resolvable_address: Optional[hci.Address],
         peer_resolvable_address: Optional[hci.Address],
         role: hci.Role,
-        connection_parameters: Optional[core.ConnectionParameters],
+        connection_interval: int,
+        peripheral_latency: int,
+        supervision_timeout: int,
     ) -> None:
         # Convert all-zeros addresses into None.
         if self_resolvable_address == hci.Address.ANY_RANDOM:
@@ -5477,19 +5520,6 @@ class Device(utils.CompositeEventEmitter):
                 'new connection reuses the same handle as a previous connection'
             )
 
-        if transport == PhysicalTransport.BR_EDR:
-            # Create a new connection
-            connection = self.pending_connections.pop(peer_address)
-            connection.complete(connection_handle, connection_parameters)
-            self.connections[connection_handle] = connection
-
-            # Emit an event to notify listeners of the new connection
-            self.emit(self.EVENT_CONNECTION, connection)
-
-            return
-
-        assert connection_parameters is not None
-
         if peer_resolvable_address is None:
             # Resolve the peer address if we can
             if self.address_resolver:
@@ -5539,16 +5569,16 @@ class Device(utils.CompositeEventEmitter):
         connection = Connection(
             self,
             connection_handle,
-            transport,
+            PhysicalTransport.LE,
             self_address,
             self_resolvable_address,
             peer_address,
             peer_resolvable_address,
             role,
             Connection.Parameters(
-                connection_parameters.connection_interval * 1.25,
-                connection_parameters.peripheral_latency,
-                connection_parameters.supervision_timeout * 10.0,
+                connection_interval * 1.25,
+                peripheral_latency,
+                supervision_timeout * 10.0,
             ),
         )
         self.connections[connection_handle] = connection
@@ -5610,7 +5640,9 @@ class Device(utils.CompositeEventEmitter):
 
     # FIXME: Explore a delegate-model for BR/EDR wait connection #56.
     @host_event_handler
-    def on_connection_request(self, bd_addr, class_of_device, link_type):
+    def on_connection_request(
+        self, bd_addr: hci.Address, class_of_device: int, link_type: int
+    ):
         logger.debug(f'*** Connection request: {bd_addr}')
 
         # Handle SCO request.
@@ -5639,8 +5671,16 @@ class Device(utils.CompositeEventEmitter):
         # device configuration is set to accept any incoming connection
         elif self.classic_accept_any:
             # Save pending connection
-            self.pending_connections[bd_addr] = Connection.incomplete(
-                self, bd_addr, hci.Role.PERIPHERAL
+            self.pending_connections[bd_addr] = Connection(
+                device=self,
+                handle=0,
+                transport=core.PhysicalTransport.BR_EDR,
+                self_address=self.public_address,
+                self_resolvable_address=None,
+                peer_address=bd_addr,
+                peer_resolvable_address=None,
+                role=hci.Role.PERIPHERAL,
+                parameters=Connection.Parameters(0, 0, 0),
             )
 
             self.host.send_command_sync(
@@ -5952,7 +5992,7 @@ class Device(utils.CompositeEventEmitter):
     @host_event_handler
     @try_with_connection_from_address
     def on_remote_name(
-        self, connection: Connection, address: hci.Address, remote_name: bytes
+        self, connection: Optional[Connection], address: hci.Address, remote_name: bytes
     ):
         # Try to decode the name
         try:
@@ -5971,7 +6011,7 @@ class Device(utils.CompositeEventEmitter):
     @host_event_handler
     @try_with_connection_from_address
     def on_remote_name_failure(
-        self, connection: Connection, address: hci.Address, error: int
+        self, connection: Optional[Connection], address: hci.Address, error: int
     ):
         if connection:
             connection.emit(connection.EVENT_REMOTE_NAME_FAILURE, error)
@@ -6183,27 +6223,27 @@ class Device(utils.CompositeEventEmitter):
     @host_event_handler
     @with_connection_from_handle
     def on_connection_parameters_update(
-        self, connection: Connection, connection_parameters: core.ConnectionParameters
+        self,
+        connection: Connection,
+        connection_interval: int,
+        peripheral_latency: int,
+        supervision_timeout: int,
     ):
         logger.debug(
             f'*** Connection Parameters Update: [0x{connection.handle:04X}] '
             f'{connection.peer_address} as {connection.role_name}, '
-            f'{connection_parameters}'
         )
-        if (
-            connection.parameters.connection_interval
-            != connection_parameters.connection_interval * 1.25
-        ):
+        if connection.parameters.connection_interval != connection_interval * 1.25:
             connection.parameters = Connection.Parameters(
-                connection_parameters.connection_interval * 1.25,
-                connection_parameters.peripheral_latency,
-                connection_parameters.supervision_timeout * 10.0,
+                connection_interval * 1.25,
+                peripheral_latency,
+                supervision_timeout * 10.0,
             )
         else:
             connection.parameters = Connection.Parameters(
-                connection_parameters.connection_interval * 1.25,
-                connection_parameters.peripheral_latency,
-                connection_parameters.supervision_timeout * 10.0,
+                connection_interval * 1.25,
+                peripheral_latency,
+                supervision_timeout * 10.0,
                 connection.parameters.subrate_factor,
                 connection.parameters.continuation_number,
             )
@@ -6403,16 +6443,24 @@ class Device(utils.CompositeEventEmitter):
 
     # [Classic only]
     @host_event_handler
-    @with_connection_from_address
-    def on_role_change(self, connection: Connection, new_role: hci.Role):
-        connection.role = new_role
-        connection.emit(connection.EVENT_ROLE_CHANGE, new_role)
+    @try_with_connection_from_address
+    def on_role_change(
+        self,
+        connection: Optional[Connection],
+        peer_address: hci.Address,
+        new_role: hci.Role,
+    ):
+        if connection:
+            connection.role = new_role
+            connection.emit(connection.EVENT_ROLE_CHANGE, new_role)
+        else:
+            logger.warning("Role change to unknown connection %s", peer_address)
 
     # [Classic only]
     @host_event_handler
     @try_with_connection_from_address
     def on_role_change_failure(
-        self, connection: Connection, address: hci.Address, error: int
+        self, connection: Optional[Connection], address: hci.Address, error: int
     ):
         if connection:
             connection.emit(connection.EVENT_ROLE_CHANGE_FAILURE, error)

bumble/host.py

@@ -26,12 +26,7 @@ from typing import TYPE_CHECKING, Any, Awaitable, Callable, Optional, Union, cas
 
 from bumble import drivers, hci, utils
 from bumble.colors import color
-from bumble.core import (
-    ConnectionParameters,
-    ConnectionPHY,
-    InvalidStateError,
-    PhysicalTransport,
-)
+from bumble.core import ConnectionPHY, InvalidStateError, PhysicalTransport
 from bumble.l2cap import L2CAP_PDU
 from bumble.snoop import Snooper
 from bumble.transport.common import TransportLostError
@@ -996,20 +991,16 @@ class Host(utils.EventEmitter):
                 self.connections[event.connection_handle] = connection
 
             # Notify the client
-            connection_parameters = ConnectionParameters(
-                event.connection_interval,
-                event.peripheral_latency,
-                event.supervision_timeout,
-            )
             self.emit(
-                'connection',
+                'le_connection',
                 event.connection_handle,
-                PhysicalTransport.LE,
                 event.peer_address,
                 getattr(event, 'local_resolvable_private_address', None),
                 getattr(event, 'peer_resolvable_private_address', None),
                 hci.Role(event.role),
-                connection_parameters,
+                event.connection_interval,
+                event.peripheral_latency,
+                event.supervision_timeout,
             )
         else:
             logger.debug(f'### CONNECTION FAILED: {event.status}')
@@ -1060,14 +1051,9 @@ class Host(utils.EventEmitter):
 
             # Notify the client
             self.emit(
-                'connection',
+                'classic_connection',
                 event.connection_handle,
-                PhysicalTransport.BR_EDR,
                 event.bd_addr,
-                None,
-                None,
-                None,
-                None,
             )
         else:
             logger.debug(f'### BR/EDR CONNECTION FAILED: {event.status}')
@@ -1130,14 +1116,13 @@ class Host(utils.EventEmitter):
 
         # Notify the client
         if event.status == hci.HCI_SUCCESS:
-            connection_parameters = ConnectionParameters(
+            self.emit(
+                'connection_parameters_update',
+                connection.handle,
                 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

bumble/transport/__init__.py

@@ -12,13 +12,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import logging
-import os
-
 # -----------------------------------------------------------------------------
 # Imports
 # -----------------------------------------------------------------------------
-from contextlib import asynccontextmanager
+import logging
+import os
+import re
 from typing import Optional
 
 from bumble import utils
@@ -85,12 +84,14 @@ async def open_transport(name: str) -> Transport:
     scheme, *tail = name.split(':', 1)
     spec = tail[0] if tail else None
     metadata = None
-    if spec:
-        # Metadata may precede the spec
-        if spec.startswith('['):
-            metadata_str, *tail = spec[1:].split(']')
-            spec = tail[0] if tail else None
-            metadata = dict([entry.split('=') for entry in metadata_str.split(',')])
+    if spec and (m := re.search(r'\[(\w+=\w+(?:,\w+=\w+)*,?)\]', spec)):
+        metadata_str = m.group(1)
+        if m.start() == 0:
+            # <metadata><spec>
+            spec = spec[m.end() :]
+        else:
+            spec = spec[: m.start()]
+        metadata = dict([entry.split('=') for entry in metadata_str.split(',')])
 
     transport = await _open_transport(scheme, spec)
     if metadata:

rust/Cargo.lock

@@ -61,7 +61,7 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5ca11d4be1bab0c8bc8734a9aa7bf4ee8316d462a08c6ac5052f888fef5b494b"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -71,7 +71,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58f54d10c6dfa51283a066ceab3ec1ab78d13fae00aa49243a45e4571fb79dfd"
 dependencies = [
  "anstyle",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -249,7 +249,7 @@ dependencies = [
  "atty",
  "bitflags 1.3.2",
  "clap_lex 0.2.4",
- "indexmap",
+ "indexmap 1.9.3",
  "strsim",
  "termcolor",
  "textwrap",
@@ -451,7 +451,7 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -483,24 +483,19 @@ dependencies = [
 ]
 
 [[package]]
-name = "errno"
-version = "0.3.3"
+name = "equivalent"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "136526188508e25c6fef639d7927dfb3e0e3084488bf202267829cf7fc23dbdd"
-dependencies = [
- "errno-dragonfly",
- "libc",
- "windows-sys",
-]
+checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
 [[package]]
-name = "errno-dragonfly"
-version = "0.1.2"
+name = "errno"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
+checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
- "cc",
  "libc",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -683,9 +678,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.21"
+version = "0.3.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91fc23aa11be92976ef4729127f1a74adf36d8436f7816b185d18df956790833"
+checksum = "0beca50380b1fc32983fc1cb4587bfa4bb9e78fc259aad4a0032d2080309222d"
 dependencies = [
  "bytes",
  "fnv",
@@ -693,7 +688,7 @@ dependencies = [
  "futures-sink",
  "futures-util",
  "http",
- "indexmap",
+ "indexmap 2.11.3",
  "slab",
  "tokio",
  "tokio-util",
@@ -706,6 +701,12 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
+[[package]]
+name = "hashbrown"
+version = "0.15.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
+
 [[package]]
 name = "heck"
 version = "0.4.1"
@@ -827,7 +828,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
 dependencies = [
  "autocfg",
- "hashbrown",
+ "hashbrown 0.12.3",
+]
+
+[[package]]
+name = "indexmap"
+version = "2.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "92119844f513ffa41556430369ab02c295a3578af21cf945caa3e9e0c2481ac3"
+dependencies = [
+ "equivalent",
+ "hashbrown 0.15.5",
 ]
 
 [[package]]
@@ -856,7 +867,7 @@ checksum = "cb0889898416213fab133e1d33a0e5858a48177452750691bde3666d0fdbaf8b"
 dependencies = [
  "hermit-abi 0.3.2",
  "rustix",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -891,9 +902,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.147"
+version = "0.2.175"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3"
+checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543"
 
 [[package]]
 name = "libusb1-sys"
@@ -920,9 +931,9 @@ dependencies = [
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.4.5"
+version = "0.4.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57bcfdad1b858c2db7c38303a6d2ad4dfaf5eb53dfeb0910128b2c26d6158503"
+checksum = "d26c52dbd32dccf2d10cac7725f8eae5296885fb5703b261f7d0a0739ec807ab"
 
 [[package]]
 name = "lock_api"
@@ -996,13 +1007,13 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.8.8"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "927a765cd3fc26206e66b296465fa9d3e5ab003e651c1b3c060e7956d96b19d2"
+checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
 dependencies = [
  "libc",
  "wasi",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1073,9 +1084,9 @@ checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
 [[package]]
 name = "openssl"
-version = "0.10.60"
+version = "0.10.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79a4c6c3a2b158f7f8f2a2fc5a969fa3a068df6fc9dbb4a43845436e3af7c800"
+checksum = "8505734d46c8ab1e19a1dce3aef597ad87dcb4c37e7188231769bd6bd51cebf8"
 dependencies = [
  "bitflags 2.4.0",
  "cfg-if",
@@ -1105,9 +1116,9 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.96"
+version = "0.9.109"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3812c071ba60da8b5677cc12bcb1d42989a65553772897a7e0355545a819838f"
+checksum = "90096e2e47630d78b7d1c20952dc621f957103f8bc2c8359ec81290d75238571"
 dependencies = [
  "cc",
  "libc",
@@ -1153,7 +1164,7 @@ dependencies = [
  "libc",
  "redox_syscall 0.3.5",
  "smallvec",
- "windows-targets",
+ "windows-targets 0.48.5",
 ]
 
 [[package]]
@@ -1542,15 +1553,15 @@ checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
 
 [[package]]
 name = "rustix"
-version = "0.38.10"
+version = "0.38.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed6248e1caa625eb708e266e06159f135e8c26f2bb7ceb72dc4b2766d0340964"
+checksum = "fdb5bc1ae2baa591800df16c9ca78619bf65c0488b41b96ccec5d11220d8c154"
 dependencies = [
  "bitflags 2.4.0",
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -1580,7 +1591,7 @@ version = "0.1.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0c3733bf4cf7ea0880754e19cb5a462007c4a8c1914bff372ccc95b464f1df88"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1702,12 +1713,12 @@ dependencies = [
 
 [[package]]
 name = "socket2"
-version = "0.5.3"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2538b18701741680e0322a2302176d3253a35388e2e62f172f64f4f16605f877"
+checksum = "e22376abed350d73dd1cd119b57ffccad95b4e585a7cda43e286245ce23c0678"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -1773,7 +1784,7 @@ dependencies = [
  "fastrand",
  "redox_syscall 0.3.5",
  "rustix",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1828,9 +1839,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.32.0"
+version = "1.38.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17ed6077ed6cd6c74735e21f37eb16dc3935f96878b1fe961074089cc80893f9"
+checksum = "68722da18b0fc4a05fdc1120b302b82051265792a1e1b399086e9b204b10ad3d"
 dependencies = [
  "backtrace",
  "bytes",
@@ -1840,16 +1851,16 @@ dependencies = [
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
- "socket2 0.5.3",
+ "socket2 0.5.10",
  "tokio-macros",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "tokio-macros"
-version = "2.1.0"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
+checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2130,7 +2141,16 @@ version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.48.5",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
+dependencies = [
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -2139,13 +2159,29 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.48.5",
+ "windows_aarch64_msvc 0.48.5",
+ "windows_i686_gnu 0.48.5",
+ "windows_i686_msvc 0.48.5",
+ "windows_x86_64_gnu 0.48.5",
+ "windows_x86_64_gnullvm 0.48.5",
+ "windows_x86_64_msvc 0.48.5",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
+dependencies = [
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
 ]
 
 [[package]]
@@ -2154,42 +2190,90 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
+
+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
+
 [[package]]
 name = "winreg"
 version = "0.50.0"
@@ -2197,5 +2281,5 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "524e57b2c537c0f9b1e69f1965311ec12182b4122e45035b1508cd24d2adadb1"
 dependencies = [
  "cfg-if",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]

rust/Cargo.toml

@@ -10,7 +10,7 @@ documentation = "https://docs.rs/crate/bumble"
 authors = ["Marshall Pierce <marshallpierce@google.com>"]
 keywords = ["bluetooth", "ble"]
 categories = ["api-bindings", "network-programming"]
-rust-version = "1.76.0"
+rust-version = "1.80.0"
 
 # https://github.com/frewsxcv/cargo-all-features#options
 [package.metadata.cargo-all-features]
@@ -22,7 +22,7 @@ always_include_features = ["anyhow", "pyo3-asyncio-attributes", "dev-tools", "bu
 [dependencies]
 pyo3 = { version = "0.18.3", features = ["macros"] }
 pyo3-asyncio = { version = "0.18.0", features = ["tokio-runtime"] }
-tokio = { version = "1.28.2", features = ["macros", "signal"] }
+tokio = { version = "1.38.2", features = ["macros", "signal"] }
 nom = "7.1.3"
 strum = "0.25.0"
 strum_macros = "0.25.0"
@@ -50,7 +50,7 @@ reqwest = { version = "0.11.20", features = ["blocking"], optional = true }
 rusb = { version = "0.9.2", optional = true }
 
 [dev-dependencies]
-tokio = { version = "1.28.2", features = ["full"] }
+tokio = { version = "1.38.2", features = ["full"] }
 tempfile = "3.6.0"
 nix = "0.26.2"
 anyhow = "1.0.71"

tests/a2dp_test.py

@@ -18,14 +18,12 @@
 import asyncio
 import logging
 import os
+import struct
+from typing import Awaitable
 
 import pytest
 
-from bumble.a2dp import (
-    AacMediaCodecInformation,
-    OpusMediaCodecInformation,
-    SbcMediaCodecInformation,
-)
+from bumble import a2dp
 from bumble.avdtp import (
     A2DP_SBC_CODEC_TYPE,
     AVDTP_AUDIO_MEDIA_TYPE,
@@ -82,6 +80,24 @@ class TwoDevices:
         self.paired[which] = keys
 
 
+# -----------------------------------------------------------------------------
+class Data:
+    pointer: int = 0
+    data: bytes
+
+    def __init__(self, data: bytes):
+        self.data = data
+
+    async def read(self, length: int) -> Awaitable[bytes]:
+        def generate_read():
+            end = min(self.pointer + length, len(self.data))
+            chunk = self.data[self.pointer : end]
+            self.pointer = end
+            return chunk
+
+        return generate_read()
+
+
 # -----------------------------------------------------------------------------
 @pytest.mark.asyncio
 async def test_self_connection():
@@ -122,12 +138,12 @@ def source_codec_capabilities():
     return MediaCodecCapabilities(
         media_type=AVDTP_AUDIO_MEDIA_TYPE,
         media_codec_type=A2DP_SBC_CODEC_TYPE,
-        media_codec_information=SbcMediaCodecInformation(
-            sampling_frequency=SbcMediaCodecInformation.SamplingFrequency.SF_44100,
-            channel_mode=SbcMediaCodecInformation.ChannelMode.JOINT_STEREO,
-            block_length=SbcMediaCodecInformation.BlockLength.BL_16,
-            subbands=SbcMediaCodecInformation.Subbands.S_8,
-            allocation_method=SbcMediaCodecInformation.AllocationMethod.LOUDNESS,
+        media_codec_information=a2dp.SbcMediaCodecInformation(
+            sampling_frequency=a2dp.SbcMediaCodecInformation.SamplingFrequency.SF_44100,
+            channel_mode=a2dp.SbcMediaCodecInformation.ChannelMode.JOINT_STEREO,
+            block_length=a2dp.SbcMediaCodecInformation.BlockLength.BL_16,
+            subbands=a2dp.SbcMediaCodecInformation.Subbands.S_8,
+            allocation_method=a2dp.SbcMediaCodecInformation.AllocationMethod.LOUDNESS,
             minimum_bitpool_value=2,
             maximum_bitpool_value=53,
         ),
@@ -139,23 +155,23 @@ def sink_codec_capabilities():
     return MediaCodecCapabilities(
         media_type=AVDTP_AUDIO_MEDIA_TYPE,
         media_codec_type=A2DP_SBC_CODEC_TYPE,
-        media_codec_information=SbcMediaCodecInformation(
-            sampling_frequency=SbcMediaCodecInformation.SamplingFrequency.SF_48000
-            | SbcMediaCodecInformation.SamplingFrequency.SF_44100
-            | SbcMediaCodecInformation.SamplingFrequency.SF_32000
-            | SbcMediaCodecInformation.SamplingFrequency.SF_16000,
-            channel_mode=SbcMediaCodecInformation.ChannelMode.MONO
-            | SbcMediaCodecInformation.ChannelMode.DUAL_CHANNEL
-            | SbcMediaCodecInformation.ChannelMode.STEREO
-            | SbcMediaCodecInformation.ChannelMode.JOINT_STEREO,
-            block_length=SbcMediaCodecInformation.BlockLength.BL_4
-            | SbcMediaCodecInformation.BlockLength.BL_8
-            | SbcMediaCodecInformation.BlockLength.BL_12
-            | SbcMediaCodecInformation.BlockLength.BL_16,
-            subbands=SbcMediaCodecInformation.Subbands.S_4
-            | SbcMediaCodecInformation.Subbands.S_8,
-            allocation_method=SbcMediaCodecInformation.AllocationMethod.LOUDNESS
-            | SbcMediaCodecInformation.AllocationMethod.SNR,
+        media_codec_information=a2dp.SbcMediaCodecInformation(
+            sampling_frequency=a2dp.SbcMediaCodecInformation.SamplingFrequency.SF_48000
+            | a2dp.SbcMediaCodecInformation.SamplingFrequency.SF_44100
+            | a2dp.SbcMediaCodecInformation.SamplingFrequency.SF_32000
+            | a2dp.SbcMediaCodecInformation.SamplingFrequency.SF_16000,
+            channel_mode=a2dp.SbcMediaCodecInformation.ChannelMode.MONO
+            | a2dp.SbcMediaCodecInformation.ChannelMode.DUAL_CHANNEL
+            | a2dp.SbcMediaCodecInformation.ChannelMode.STEREO
+            | a2dp.SbcMediaCodecInformation.ChannelMode.JOINT_STEREO,
+            block_length=a2dp.SbcMediaCodecInformation.BlockLength.BL_4
+            | a2dp.SbcMediaCodecInformation.BlockLength.BL_8
+            | a2dp.SbcMediaCodecInformation.BlockLength.BL_12
+            | a2dp.SbcMediaCodecInformation.BlockLength.BL_16,
+            subbands=a2dp.SbcMediaCodecInformation.Subbands.S_4
+            | a2dp.SbcMediaCodecInformation.Subbands.S_8,
+            allocation_method=a2dp.SbcMediaCodecInformation.AllocationMethod.LOUDNESS
+            | a2dp.SbcMediaCodecInformation.AllocationMethod.SNR,
             minimum_bitpool_value=2,
             maximum_bitpool_value=53,
         ),
@@ -274,52 +290,54 @@ async def test_source_sink_1():
 
 # -----------------------------------------------------------------------------
 def test_sbc_codec_specific_information():
-    sbc_info = SbcMediaCodecInformation.from_bytes(bytes.fromhex("3fff0235"))
+    sbc_info = a2dp.SbcMediaCodecInformation.from_bytes(bytes.fromhex("3fff0235"))
     assert (
         sbc_info.sampling_frequency
-        == SbcMediaCodecInformation.SamplingFrequency.SF_44100
-        | SbcMediaCodecInformation.SamplingFrequency.SF_48000
+        == a2dp.SbcMediaCodecInformation.SamplingFrequency.SF_44100
+        | a2dp.SbcMediaCodecInformation.SamplingFrequency.SF_48000
     )
     assert (
         sbc_info.channel_mode
-        == SbcMediaCodecInformation.ChannelMode.MONO
-        | SbcMediaCodecInformation.ChannelMode.DUAL_CHANNEL
-        | SbcMediaCodecInformation.ChannelMode.STEREO
-        | SbcMediaCodecInformation.ChannelMode.JOINT_STEREO
+        == a2dp.SbcMediaCodecInformation.ChannelMode.MONO
+        | a2dp.SbcMediaCodecInformation.ChannelMode.DUAL_CHANNEL
+        | a2dp.SbcMediaCodecInformation.ChannelMode.STEREO
+        | a2dp.SbcMediaCodecInformation.ChannelMode.JOINT_STEREO
     )
     assert (
         sbc_info.block_length
-        == SbcMediaCodecInformation.BlockLength.BL_4
-        | SbcMediaCodecInformation.BlockLength.BL_8
-        | SbcMediaCodecInformation.BlockLength.BL_12
-        | SbcMediaCodecInformation.BlockLength.BL_16
+        == a2dp.SbcMediaCodecInformation.BlockLength.BL_4
+        | a2dp.SbcMediaCodecInformation.BlockLength.BL_8
+        | a2dp.SbcMediaCodecInformation.BlockLength.BL_12
+        | a2dp.SbcMediaCodecInformation.BlockLength.BL_16
     )
     assert (
         sbc_info.subbands
-        == SbcMediaCodecInformation.Subbands.S_4 | SbcMediaCodecInformation.Subbands.S_8
+        == a2dp.SbcMediaCodecInformation.Subbands.S_4
+        | a2dp.SbcMediaCodecInformation.Subbands.S_8
     )
     assert (
         sbc_info.allocation_method
-        == SbcMediaCodecInformation.AllocationMethod.SNR
-        | SbcMediaCodecInformation.AllocationMethod.LOUDNESS
+        == a2dp.SbcMediaCodecInformation.AllocationMethod.SNR
+        | a2dp.SbcMediaCodecInformation.AllocationMethod.LOUDNESS
     )
     assert sbc_info.minimum_bitpool_value == 2
     assert sbc_info.maximum_bitpool_value == 53
 
-    sbc_info2 = SbcMediaCodecInformation(
-        SbcMediaCodecInformation.SamplingFrequency.SF_44100
-        | SbcMediaCodecInformation.SamplingFrequency.SF_48000,
-        SbcMediaCodecInformation.ChannelMode.MONO
-        | SbcMediaCodecInformation.ChannelMode.DUAL_CHANNEL
-        | SbcMediaCodecInformation.ChannelMode.STEREO
-        | SbcMediaCodecInformation.ChannelMode.JOINT_STEREO,
-        SbcMediaCodecInformation.BlockLength.BL_4
-        | SbcMediaCodecInformation.BlockLength.BL_8
-        | SbcMediaCodecInformation.BlockLength.BL_12
-        | SbcMediaCodecInformation.BlockLength.BL_16,
-        SbcMediaCodecInformation.Subbands.S_4 | SbcMediaCodecInformation.Subbands.S_8,
-        SbcMediaCodecInformation.AllocationMethod.SNR
-        | SbcMediaCodecInformation.AllocationMethod.LOUDNESS,
+    sbc_info2 = a2dp.SbcMediaCodecInformation(
+        a2dp.SbcMediaCodecInformation.SamplingFrequency.SF_44100
+        | a2dp.SbcMediaCodecInformation.SamplingFrequency.SF_48000,
+        a2dp.SbcMediaCodecInformation.ChannelMode.MONO
+        | a2dp.SbcMediaCodecInformation.ChannelMode.DUAL_CHANNEL
+        | a2dp.SbcMediaCodecInformation.ChannelMode.STEREO
+        | a2dp.SbcMediaCodecInformation.ChannelMode.JOINT_STEREO,
+        a2dp.SbcMediaCodecInformation.BlockLength.BL_4
+        | a2dp.SbcMediaCodecInformation.BlockLength.BL_8
+        | a2dp.SbcMediaCodecInformation.BlockLength.BL_12
+        | a2dp.SbcMediaCodecInformation.BlockLength.BL_16,
+        a2dp.SbcMediaCodecInformation.Subbands.S_4
+        | a2dp.SbcMediaCodecInformation.Subbands.S_8,
+        a2dp.SbcMediaCodecInformation.AllocationMethod.SNR
+        | a2dp.SbcMediaCodecInformation.AllocationMethod.LOUDNESS,
         2,
         53,
     )
@@ -329,36 +347,36 @@ def test_sbc_codec_specific_information():
 
 # -----------------------------------------------------------------------------
 def test_aac_codec_specific_information():
-    aac_info = AacMediaCodecInformation.from_bytes(bytes.fromhex("f0018c83e800"))
+    aac_info = a2dp.AacMediaCodecInformation.from_bytes(bytes.fromhex("f0018c83e800"))
     assert (
         aac_info.object_type
-        == AacMediaCodecInformation.ObjectType.MPEG_2_AAC_LC
-        | AacMediaCodecInformation.ObjectType.MPEG_4_AAC_LC
-        | AacMediaCodecInformation.ObjectType.MPEG_4_AAC_LTP
-        | AacMediaCodecInformation.ObjectType.MPEG_4_AAC_SCALABLE
+        == a2dp.AacMediaCodecInformation.ObjectType.MPEG_2_AAC_LC
+        | a2dp.AacMediaCodecInformation.ObjectType.MPEG_4_AAC_LC
+        | a2dp.AacMediaCodecInformation.ObjectType.MPEG_4_AAC_LTP
+        | a2dp.AacMediaCodecInformation.ObjectType.MPEG_4_AAC_SCALABLE
     )
     assert (
         aac_info.sampling_frequency
-        == AacMediaCodecInformation.SamplingFrequency.SF_44100
-        | AacMediaCodecInformation.SamplingFrequency.SF_48000
+        == a2dp.AacMediaCodecInformation.SamplingFrequency.SF_44100
+        | a2dp.AacMediaCodecInformation.SamplingFrequency.SF_48000
     )
     assert (
         aac_info.channels
-        == AacMediaCodecInformation.Channels.MONO
-        | AacMediaCodecInformation.Channels.STEREO
+        == a2dp.AacMediaCodecInformation.Channels.MONO
+        | a2dp.AacMediaCodecInformation.Channels.STEREO
     )
     assert aac_info.vbr == 1
     assert aac_info.bitrate == 256000
 
-    aac_info2 = AacMediaCodecInformation(
-        AacMediaCodecInformation.ObjectType.MPEG_2_AAC_LC
-        | AacMediaCodecInformation.ObjectType.MPEG_4_AAC_LC
-        | AacMediaCodecInformation.ObjectType.MPEG_4_AAC_LTP
-        | AacMediaCodecInformation.ObjectType.MPEG_4_AAC_SCALABLE,
-        AacMediaCodecInformation.SamplingFrequency.SF_44100
-        | AacMediaCodecInformation.SamplingFrequency.SF_48000,
-        AacMediaCodecInformation.Channels.MONO
-        | AacMediaCodecInformation.Channels.STEREO,
+    aac_info2 = a2dp.AacMediaCodecInformation(
+        a2dp.AacMediaCodecInformation.ObjectType.MPEG_2_AAC_LC
+        | a2dp.AacMediaCodecInformation.ObjectType.MPEG_4_AAC_LC
+        | a2dp.AacMediaCodecInformation.ObjectType.MPEG_4_AAC_LTP
+        | a2dp.AacMediaCodecInformation.ObjectType.MPEG_4_AAC_SCALABLE,
+        a2dp.AacMediaCodecInformation.SamplingFrequency.SF_44100
+        | a2dp.AacMediaCodecInformation.SamplingFrequency.SF_48000,
+        a2dp.AacMediaCodecInformation.Channels.MONO
+        | a2dp.AacMediaCodecInformation.Channels.STEREO,
         1,
         256000,
     )
@@ -368,25 +386,159 @@ def test_aac_codec_specific_information():
 
 # -----------------------------------------------------------------------------
 def test_opus_codec_specific_information():
-    opus_info = OpusMediaCodecInformation.from_bytes(bytes([0x92]))
-    assert opus_info.vendor_id == OpusMediaCodecInformation.VENDOR_ID
-    assert opus_info.codec_id == OpusMediaCodecInformation.CODEC_ID
-    assert opus_info.frame_size == OpusMediaCodecInformation.FrameSize.FS_20MS
-    assert opus_info.channel_mode == OpusMediaCodecInformation.ChannelMode.STEREO
+    opus_info = a2dp.OpusMediaCodecInformation.from_bytes(bytes([0x92]))
+    assert opus_info.vendor_id == a2dp.OpusMediaCodecInformation.VENDOR_ID
+    assert opus_info.codec_id == a2dp.OpusMediaCodecInformation.CODEC_ID
+    assert opus_info.frame_size == a2dp.OpusMediaCodecInformation.FrameSize.FS_20MS
+    assert opus_info.channel_mode == a2dp.OpusMediaCodecInformation.ChannelMode.STEREO
     assert (
         opus_info.sampling_frequency
-        == OpusMediaCodecInformation.SamplingFrequency.SF_48000
+        == a2dp.OpusMediaCodecInformation.SamplingFrequency.SF_48000
     )
 
-    opus_info2 = OpusMediaCodecInformation(
-        OpusMediaCodecInformation.ChannelMode.STEREO,
-        OpusMediaCodecInformation.FrameSize.FS_20MS,
-        OpusMediaCodecInformation.SamplingFrequency.SF_48000,
+    opus_info2 = a2dp.OpusMediaCodecInformation(
+        a2dp.OpusMediaCodecInformation.ChannelMode.STEREO,
+        a2dp.OpusMediaCodecInformation.FrameSize.FS_20MS,
+        a2dp.OpusMediaCodecInformation.SamplingFrequency.SF_48000,
     )
     assert opus_info2 == opus_info
     assert opus_info2.value == bytes([0x92])
 
 
+# -----------------------------------------------------------------------------
+async def test_sbc_parser():
+    header = b'\x9c\x80\x08\x00'
+    payload = b'\x00\x00\x00\x00\x00\x00'
+    data = Data(header + payload)
+
+    parser = a2dp.SbcParser(data.read)
+    async for frame in parser.frames:
+        assert frame.sampling_frequency == 44100
+        assert frame.block_count == 4
+        assert frame.channel_mode == 0
+        assert frame.allocation_method == 0
+        assert frame.subband_count == 4
+        assert frame.bitpool == 8
+        assert frame.payload == header + payload
+
+
+# -----------------------------------------------------------------------------
+async def test_sbc_packet_source():
+    header = b'\x9c\x80\x08\x00'
+    payload = b'\x00\x00\x00\x00\x00\x00'
+    data = Data((header + payload) * 2)
+
+    packet_source = a2dp.SbcPacketSource(data.read, 23)
+    async for packet in packet_source.packets:
+        assert packet.sequence_number == 0
+        assert packet.timestamp == 0
+        assert packet.payload == b'\x01' + header + payload
+
+
+# -----------------------------------------------------------------------------
+async def test_aac_parser():
+    header = b'\xff\xf0\x10\x00\x01\xa0\x00'
+    payload = b'\x00\x00\x00\x00\x00\x00'
+    data = Data(header + payload)
+
+    parser = a2dp.AacParser(data.read)
+    async for frame in parser.frames:
+        assert frame.profile == a2dp.AacFrame.Profile.MAIN
+        assert frame.sampling_frequency == 44100
+        assert frame.channel_configuration == 0
+        assert frame.payload == payload
+
+
+# -----------------------------------------------------------------------------
+async def test_aac_packet_source():
+    header = b'\xff\xf0\x10\x00\x01\xa0\x00'
+    payload = b'\x00\x00\x00\x00\x00\x00'
+    data = Data(header + payload)
+
+    packet_source = a2dp.AacPacketSource(data.read, 0)
+    async for packet in packet_source.packets:
+        assert packet.sequence_number == 0
+        assert packet.timestamp == 0
+        assert packet.payload == b' \x00\x12\x00\x00\x000\x00\x00\x00\x00\x00\x00'
+
+
+# -----------------------------------------------------------------------------
+async def test_opus_parser():
+    packed_header_data_revised = struct.pack(
+        "<QIIIB",
+        0,  # granule_position
+        2,  # bitstream_serial_number
+        2,  # page_sequence_number
+        0,  # crc_checksum
+        3,  # page_segments
+    )
+
+    first_page_header_revised = (
+        b'OggS'  # Capture pattern
+        + b'\x00'  # Version
+        + b'\x02'  # Header type
+        + packed_header_data_revised
+    )
+
+    segment_table_revised = b'\x0a\x08\x0a'
+
+    opus_head_packet_data = b'OpusHead' + b'\x00' + b'\x00'
+    opus_tags_packet_data = b'OpusTags'
+    audio_data_packet = b'0123456789'
+
+    data = Data(
+        first_page_header_revised
+        + segment_table_revised
+        + opus_head_packet_data
+        + opus_tags_packet_data
+        + audio_data_packet
+    )
+
+    parser = a2dp.OpusParser(data.read)
+    async for packet in parser.packets:
+        assert packet.channel_mode == a2dp.OpusPacket.ChannelMode.STEREO
+        assert packet.payload == audio_data_packet
+
+
+# -----------------------------------------------------------------------------
+async def test_opus_packet_source():
+    packed_header_data_revised = struct.pack(
+        "<QIIIB",
+        0,  # granule_position
+        2,  # bitstream_serial_number
+        2,  # page_sequence_number
+        0,  # crc_checksum
+        3,  # page_segments
+    )
+
+    first_page_header_revised = (
+        b'OggS'  # Capture pattern
+        + b'\x00'  # Version
+        + b'\x02'  # Header type
+        + packed_header_data_revised
+    )
+
+    segment_table_revised = b'\x0a\x08\x0a'
+
+    opus_head_packet_data = b'OpusHead' + b'\x00' + b'\x00'
+    opus_tags_packet_data = b'OpusTags'
+    audio_data_packet = b'0123456789'
+
+    data = Data(
+        first_page_header_revised
+        + segment_table_revised
+        + opus_head_packet_data
+        + opus_tags_packet_data
+        + audio_data_packet
+    )
+
+    parser = a2dp.OpusPacketSource(data.read, 0)
+    async for packet in parser.packets:
+        assert packet.sequence_number == 0
+        assert packet.timestamp == 0
+        assert packet.payload == b'\x01' + audio_data_packet
+
+
 # -----------------------------------------------------------------------------
 async def async_main():
     test_sbc_codec_specific_information()
@@ -394,6 +546,12 @@ async def async_main():
     test_opus_codec_specific_information()
     await test_self_connection()
     await test_source_sink_1()
+    test_sbc_parser()
+    test_sbc_packet_source()
+    test_aac_parser()
+    test_aac_packet_source()
+    test_opus_parser()
+    test_opus_packet_source()
 
 
 # -----------------------------------------------------------------------------

tests/bap_test.py

@@ -310,12 +310,12 @@ async def test_pacs():
 @pytest.mark.asyncio
 async def test_ascs():
     devices = TwoDevices()
-    devices[0].add_service(
-        AudioStreamControlService(device=devices[0], sink_ase_id=[1, 2])
+    devices[1].add_service(
+        AudioStreamControlService(device=devices[1], sink_ase_id=[1, 2])
     )
 
     await devices.setup_connection()
-    peer = device.Peer(devices.connections[1])
+    peer = device.Peer(devices.connections[0])
     ascs_client = await peer.discover_service_and_create_proxy(
         AudioStreamControlServiceProxy
     )
@@ -369,7 +369,7 @@ async def test_ascs():
     await ascs_client.ase_control_point.write_value(
         ASE_Config_QOS(
             ase_id=[1, 2],
-            cig_id=[1, 2],
+            cig_id=[1, 1],
             cis_id=[3, 4],
             sdu_interval=[5, 6],
             framing=[0, 1],
@@ -402,25 +402,19 @@ async def test_ascs():
     )
 
     # CIS establishment
-    devices[0].emit(
-        'cis_establishment',
-        device.CisLink(
-            device=devices[0],
-            acl_connection=devices.connections[0],
-            handle=5,
-            cis_id=3,
+    cis_handles = await devices[0].setup_cig(
+        device.CigParameters(
             cig_id=1,
-        ),
+            cis_parameters=[
+                device.CigParameters.CisParameters(cis_id=3),
+                device.CigParameters.CisParameters(cis_id=4),
+            ],
+            sdu_interval_c_to_p=0,
+            sdu_interval_p_to_c=0,
+        )
     )
-    devices[0].emit(
-        'cis_establishment',
-        device.CisLink(
-            device=devices[0],
-            acl_connection=devices.connections[0],
-            handle=6,
-            cis_id=4,
-            cig_id=2,
-        ),
+    await devices[0].create_cis(
+        [(cis_handle, devices.connections[0]) for cis_handle in cis_handles]
     )
     assert (await notifications[1].get())[:2] == bytes(
         [1, AseStateMachine.State.STREAMING]

tests/device_test.py

@@ -24,7 +24,7 @@ from unittest import mock
 import pytest
 
 from bumble import device, gatt, hci, utils
-from bumble.core import ConnectionParameters, PhysicalTransport
+from bumble.core import PhysicalTransport
 from bumble.device import (
     AdvertisingEventProperties,
     AdvertisingParameters,
@@ -289,14 +289,15 @@ async def test_legacy_advertising_disconnection(auto_restart):
     await device.power_on()
     peer_address = Address('F0:F1:F2:F3:F4:F5')
     await device.start_advertising(auto_restart=auto_restart)
-    device.on_connection(
+    device.on_le_connection(
         0x0001,
-        PhysicalTransport.LE,
         peer_address,
         None,
         None,
         Role.PERIPHERAL,
-        ConnectionParameters(0, 0, 0),
+        0,
+        0,
+        0,
     )
 
     device.on_advertising_set_termination(
@@ -347,14 +348,15 @@ async def test_extended_advertising_connection(own_address_type):
     advertising_set = await device.create_advertising_set(
         advertising_parameters=AdvertisingParameters(own_address_type=own_address_type)
     )
-    device.on_connection(
+    device.on_le_connection(
         0x0001,
-        PhysicalTransport.LE,
         peer_address,
         None,
         None,
         Role.PERIPHERAL,
-        ConnectionParameters(0, 0, 0),
+        0,
+        0,
+        0,
     )
     device.on_advertising_set_termination(
         HCI_SUCCESS,
@@ -391,14 +393,15 @@ async def test_extended_advertising_connection_out_of_order(own_address_type):
         0x0001,
         0,
     )
-    device.on_connection(
+    device.on_le_connection(
         0x0001,
-        PhysicalTransport.LE,
         Address('F0:F1:F2:F3:F4:F5'),
         None,
         None,
         Role.PERIPHERAL,
-        ConnectionParameters(0, 0, 0),
+        0,
+        0,
+        0,
     )
 
     if own_address_type == OwnAddressType.PUBLIC:

tests/transport_test.py

@@ -24,7 +24,7 @@ import sys
 import pytest
 
 from bumble import controller, device, hci, link, transport
-from bumble.transport.common import PacketParser
+from bumble.transport import common
 
 
 # -----------------------------------------------------------------------------
@@ -61,9 +61,9 @@ class Sink:
 # -----------------------------------------------------------------------------
 def test_parser():
     sink1 = Sink()
-    parser1 = PacketParser(sink1)
+    parser1 = common.PacketParser(sink1)
     sink2 = Sink()
-    parser2 = PacketParser(sink2)
+    parser2 = common.PacketParser(sink2)
 
     for parser in [parser1, parser2]:
         with open(
@@ -82,7 +82,7 @@ def test_parser():
 # -----------------------------------------------------------------------------
 def test_parser_extensions():
     sink = Sink()
-    parser = PacketParser(sink)
+    parser = common.PacketParser(sink)
 
     # Check that an exception is thrown for an unknown type
     try:
@@ -206,7 +206,7 @@ async def test_unix_connection_abstract():
 # -----------------------------------------------------------------------------
 @pytest.mark.parametrize(
     "address,",
-    ("127.0.0.1",),
+    ("127.0.0.1", "[::1]"),
 )
 async def test_android_netsim_connection(address):
     controller_transport = await transport.open_transport(
@@ -222,6 +222,33 @@ async def test_android_netsim_connection(address):
     await client_device.power_on()
 
     await client_transport.close()
+    await controller_transport.source.grpc_server.stop(None)
+    await controller_transport.close()
+
+
+# -----------------------------------------------------------------------------
+@pytest.mark.parametrize(
+    "spec,",
+    (
+        "android-netsim:[::1]:{port},mode=host[a=b,c=d]",
+        "android-netsim:localhost:{port},mode=host[a=b,c=d]",
+        "android-netsim:[a=b,c=d][::1]:{port},mode=host",
+        "android-netsim:[a=b,c=d]localhost:{port},mode=host",
+    ),
+)
+async def test_open_transport_with_metadata(spec):
+    controller_transport = await transport.open_transport(
+        "android-netsim:_:0,mode=controller"
+    )
+    port = controller_transport.source.port
+    _make_controller_from_transport(controller_transport)
+
+    client_transport = await transport.open_transport(spec.format(port=port))
+    assert client_transport.source.metadata['a'] == 'b'
+    assert client_transport.source.metadata['c'] == 'd'
+
+    await client_transport.close()
+    await controller_transport.source.grpc_server.stop(None)
     await controller_transport.close()