Struct WlanSoftmacBridgeSynchronousProxy

pub struct WlanSoftmacBridgeSynchronousProxy { /* private fields */ }

Implementations

impl WlanSoftmacBridgeSynchronousProxy

pub fn new(channel: Channel) -> Self

pub fn into_channel(self) -> Channel

pub fn wait_for_event( &self, deadline: MonotonicInstant, ) -> Result<WlanSoftmacBridgeEvent, Error>

Waits until an event arrives and returns it. It is safe for other threads to make concurrent requests while waiting for an event.

pub fn query( &self, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseQueryResult, Error>

Gets general information about the device and its supported features. This method is safe to call even when the SoftMAC has not yet started.

Note: The implementation of this method must not depend on a response from an ethernet driver, otherwise there is a risk of deadlock. The wlansoftmac driver calls this method synchronously while serving the fuchsia.hardware.ethernet/EthernetImpl.Query method.

pub fn query_discovery_support( &self, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseQueryDiscoverySupportResult, Error>

Gets information about the station discovery (e.g., scanning and probing) features supported by the device. This method is safe to call even when the SoftMAC has not yet started.

pub fn query_mac_sublayer_support( &self, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseQueryMacSublayerSupportResult, Error>

Gets information about the MAC features supported by the device. This method is safe to call even when the SoftMAC has not yet started.

Note: The implementation of this method must not depend on a response from an ethernet driver, otherwise there is a risk of deadlock. The wlansoftmac driver calls this method synchronously while serving the fuchsia.hardware.ethernet/EthernetImpl.Query method.

pub fn query_security_support( &self, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseQuerySecuritySupportResult, Error>

Gets information about the security features supported by the device. This method is safe to call even when the SoftMAC has not yet started.

pub fn query_spectrum_management_support( &self, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseQuerySpectrumManagementSupportResult, Error>

Gets information about the spectrum usage (e.g., DFS) features supported by the device. This method is safe to call even when the SoftMAC has not yet started.

pub fn set_channel( &self, payload: &WlanSoftmacBaseSetChannelRequest, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseSetChannelResult, Error>

Set the primary radio channel, e.g. in response to a channel switch event. If successful, this will trigger the channel switch immediately. This may impact the transmission of any frames that are in-flight, and might also interfere with an ongoing scan request.

Common errors include:
ZX_ERR_NOT_SUPPORTED: The device cannot switch to the requested channel.

pub fn join_bss( &self, join_request: &JoinBssRequest, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseJoinBssResult, Error>

Join a specific BSS in which we will participate. This applies regardless of if we are hosting the BSS or joining it (indicated by the remote flag in JoinBssRequest). If successful, the device will switch to the correct channel and perform any internal filtering/timing operations required to join the BSS. For client STAs, this is the first step before authenticating.

Common errors include:
ZX_ERR_NOT_SUPPORTED: The device does not support the given bss config.

pub fn enable_beaconing( &self, payload: &WlanSoftmacBaseEnableBeaconingRequest, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseEnableBeaconingResult, Error>

Enables hardware Beaconing.

This method cannot be called while beaconing is enabled and so DisableBeaconing must be called prior to this method if beaconing is enabled.

All request fields are required.

Common errors include:

• ZX_ERR_NOT_SUPPORTED: The device does not support hardware beacons.
• ZX_ERR_INVALID_ARGS: The device cannot transmit the requested beacon.
• ZX_ERR_BAD_STATE: The device is already beaconing.

pub fn disable_beaconing( &self, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseDisableBeaconingResult, Error>

Disables hardware beaconing.

pub fn install_key( &self, payload: &WlanKeyConfiguration, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseInstallKeyResult, Error>

Install a key for encryption when transmitting or receiving protected frames.

Common errors include: ZX_ERR_INVALID_ARGS: The given config does not specify a valid key. ZX_ERR_NOT_SUPPORTED: The device does not support the given cipher.

pub fn notify_association_complete( &self, assoc_cfg: &WlanAssociationConfig, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseNotifyAssociationCompleteResult, Error>

Notifies the device of a successful association and configures additional parameters necessary to participate in that association.

Errors

Common errors include:

• ZX_ERR_BAD_STATE: The device was not previously informed of this BSS via WlanSoftmac.JoinBss.

pub fn clear_association( &self, payload: &WlanSoftmacBaseClearAssociationRequest, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseClearAssociationResult, Error>

Notifies MAC and PHY that the peer has been de-associated.

pub fn start_passive_scan( &self, payload: &WlanSoftmacBaseStartPassiveScanRequest, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseStartPassiveScanResult, Error>

Starts a passive scan. The server will deliver scan results as Beacon frames using WlanSoftmacIfc.Recv(). When complete, the server will call WlanSoftmacIfc.ScanComplete() with the same scan_id returned by StartPassiveScan().

The server indicates support for StartPassiveScan() using fuchsia.wlan.common/ScanOffloadExtension.supported.

Common errors include: ZX_ERR_INVALID_ARGS: The device is not capable of performing the requested scan, e.g. because an incompatible channel was requested. ZX_ERR_UNAVAILABLE: The device cannot currently perform scans. ZX_ERR_SHOULD_WAIT: Another scan is already in-progress.

pub fn start_active_scan( &self, payload: &WlanSoftmacStartActiveScanRequest, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseStartActiveScanResult, Error>

Starts an active scan. The server will deliver scan results as Beacon or Probe Response frames using WlanSoftmacIfc.Recv(). When complete, the server will call WlanSoftmacIfc.ScanComplete() with the same scan_id returned by StartActiveScan().

A device driver indicates support for StartActiveScan() using fuchsia.wlan.common/ProbeRequestOffloadExtension.supported.

Common errors include: ZX_ERR_INVALID_ARGS: The device is not capable of performing the requested scan, e.g. because an incompatible channel was requested. ZX_ERR_UNAVAILABLE: The device cannot currently perform scans. ZX_ERR_SHOULD_WAIT: Another scan is already in-progress.

pub fn cancel_scan( &self, payload: &WlanSoftmacBaseCancelScanRequest, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseCancelScanResult, Error>

Cancels the ongoing scan corresponding to scan_id, where scan_id is an identifier returned by StartPassiveScan() or StartActiveScan(). If cancellation succeeds, the server will soon call WlanSoftmacIfc.ScanComplete() with the same scan_id.

A device driver indicates support for CancelScan() using fuchsia.wlan.common/ScanOffloadExtension.scan_cancel_supported.

Common errors include:

• ZX_ERR_NOT_FOUND: scan_id does not match an ongoing scan.
• ZX_ERR_NOT_SUPPORTED: Server does not support scan cancellation.

pub fn update_wmm_parameters( &self, payload: &WlanSoftmacBaseUpdateWmmParametersRequest, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBaseUpdateWmmParametersResult, Error>

Indicate the device of modified WiFi Multimedia (WMM) parameters for a particular access category (AC).

pub fn start( &self, ifc_bridge: ClientEnd<WlanSoftmacIfcBridgeMarker>, ethernet_tx: u64, wlan_rx: u64, ___deadline: MonotonicInstant, ) -> Result<WlanSoftmacBridgeStartResult, Error>

Signal to the server that the MLME for the iface is ready to send and receive frames.

The client provides the following arguments:

• ifc_bridge: The client end of a WlanSoftmacIfcBridge server which the wlansoftmac driver will use to forward WlanSoftmacIfc events to the bridged driver.
• ethernet_tx: A ethernet_tx_t* casted to a uint64. The ethernet_tx_t is defined in //src/connectivity/wlan/drivers/wlansoftmac/rust_driver/c-binding/bindings.h.
• wlan_rx: A wlan_rx_t* casted to a uint64. The wlan_rx_t is defined in //src/connectivity/wlan/drivers/wlansoftmac/rust_driver/c-binding/bindings.h.

The server must copy the contents of ethernet_tx_t and wlan_rx_t before returning from this method. The lifetimes of ethernet_tx_t* and wlan_rx_t* are only as long as this method call, but the contents of ethernet_tx_t and wlan_rx_t will live until the server stops the MLME.

The server returns a server end of a fuchsia.wlan.mlme/MLME protocol. The SME for the iface owns the client end. Thus, this channel is used for SME <-> MLME communication.

The WlanSoftmacBridge.Start method is different from WlanSoftmac.Start for two reasons. First, Rust bindings do not exist for Driver transported protocols, so WlanSoftmacIfcBridge protocol must be Zircon transported to be usable by the bridged driver. Second, the Zircon transport adds significant latency compared to the Driver transport. As a result, the ethernet_tx and wlan_rx arguments provide an FFI for the wlansoftmac driver to send Ethernet and receive WLAN packets to the bridged driver with latency comparable or better than a Driver transported protocol.

Except where noted, WlanSoftmacBridge methods must only be called after a successful call to WlanSoftmacBridge.Start.

Common errors include:

• ZX_ERR_ALREADY_BOUND: Start was already called on this softmac.

pub fn set_ethernet_status( &self, status: u32, ___deadline: MonotonicInstant, ) -> Result<(), Error>

Forwards a status containing ETHERNET_STATUS_* flags to the fuchsia.hardware.ethernet/EthernetImplIfc proxy owned by the C++ portion of wlansoftmac.

As documented, the value of status is set by bits defined in ETHERNET_STATUS_* flags. However, there is only one flag named ETHERNET_STATUS_ONLINE and no specification of for the meaning of specifying no flags. In practice, 0x1 means the status is up, and 0x0 means the status is down.

While this method should belong in something like an “EthernetImplIfcBridge protocol”, it’s included in the WlanSoftmacBridge protocol as a convenience. The wlansoftmac driver will eventually cease using a fuchsia.hardware.ethernet/EthernetImplIfc proxy and use a fuchsia.hardware.network.driver/NetworkDeviceIfc proxy instead. At that time, an equivalent of this method should be refactored into a separate bridge.

Trait Implementations

impl Debug for WlanSoftmacBridgeSynchronousProxy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl SynchronousProxy for WlanSoftmacBridgeSynchronousProxy

type Proxy = WlanSoftmacBridgeProxy

The async proxy for the same protocol.

type Protocol = WlanSoftmacBridgeMarker

The protocol which this Proxy controls.

fn from_channel(inner: Channel) -> Self

Create a proxy over the given channel.

fn into_channel(self) -> Channel

Convert the proxy back into a channel.

fn as_channel(&self) -> &Channel

Get a reference to the proxy’s underlying channel.

fn is_closed(&self) -> Result<bool, Status>

Returns true if the proxy has received the PEER_CLOSED signal.