Struct L2capManager 

pub struct L2capManager { /* private fields */ }

L2CAP connection and channel manager

Implementations

impl L2capManager

pub fn new() -> Self

Create a new L2CAP manager

pub fn channel_count(&self) -> usize

Get number of active channels

pub fn get_channel(&self, local_cid: u16) -> Option<&L2capChannel>

Get a channel by local CID

pub fn get_channel_mut(&mut self, local_cid: u16) -> Option<&mut L2capChannel>

Get a mutable reference to a channel by local CID

pub fn open_channel( &mut self, psm: u16, hci_handle: u16, ) -> Result<(u16, SignalingCommand), KernelError>

Open a new L2CAP channel for the given PSM on the given HCI connection

Returns (local_cid, SignalingCommand to send to peer)

pub fn close_channel( &mut self, local_cid: u16, ) -> Result<SignalingCommand, KernelError>

Close an existing L2CAP channel

Returns a SignalingCommand (Disconnection Request) to send to peer

pub fn remove_channel(&mut self, local_cid: u16) -> Option<L2capChannel>

Remove a channel entirely (after disconnection completes)

pub fn send_data( &self, local_cid: u16, data: &[u8], ) -> Result<Vec<SarFragment>, KernelError>

Send data on an open channel, segmenting into PDU fragments if needed

Returns a list of SAR fragments ready to be sent over HCI ACL

pub fn receive_data( &mut self, local_cid: u16, fragment: &[u8], is_first: bool, ) -> Result<Option<Vec<u8>>, KernelError>

Receive and reassemble data for a channel

Feeds a raw fragment into the reassembly buffer. Returns completed payload when all fragments have been received.

pub fn process_signaling( &mut self, cmd: &SignalingCommand, ) -> Result<Option<SignalingCommand>, KernelError>

Process an incoming L2CAP signaling command

Returns an optional response command to send back

pub fn configure_channel( &mut self, local_cid: u16, mtu: u16, flush_timeout: u16, ) -> Result<(), KernelError>

Configure a channel’s MTU and flush timeout

Trait Implementations

impl Default for L2capManager

Available on crate feature alloc only.

fn default() -> Self

Returns the “default value” for a type.