fidl_fuchsia_hardware_block_encrypted/

fidl_fuchsia_hardware_block_encrypted.rs

// WARNING: This file is machine generated by fidlgen.

#![warn(clippy::all)]
#![allow(unused_parens, unused_mut, unused_imports, nonstandard_style)]

use bitflags::bitflags;
use fidl::client::QueryResponseFut;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use fidl::endpoints::{ControlHandle as _, Responder as _};
pub use fidl_fuchsia_hardware_block_encrypted__common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct DeviceManagerMarker;

impl fidl::endpoints::ProtocolMarker for DeviceManagerMarker {
    type Proxy = DeviceManagerProxy;
    type RequestStream = DeviceManagerRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = DeviceManagerSynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) DeviceManager";
}

pub trait DeviceManagerProxyInterface: Send + Sync {
    type FormatResponseFut: std::future::Future<Output = Result<i32, fidl::Error>> + Send;
    fn r#format(&self, key: &[u8], slot: u8) -> Self::FormatResponseFut;
    type UnsealResponseFut: std::future::Future<Output = Result<i32, fidl::Error>> + Send;
    fn r#unseal(&self, key: &[u8], slot: u8) -> Self::UnsealResponseFut;
    type SealResponseFut: std::future::Future<Output = Result<i32, fidl::Error>> + Send;
    fn r#seal(&self) -> Self::SealResponseFut;
    type ShredResponseFut: std::future::Future<Output = Result<i32, fidl::Error>> + Send;
    fn r#shred(&self) -> Self::ShredResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct DeviceManagerSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for DeviceManagerSynchronousProxy {
    type Proxy = DeviceManagerProxy;
    type Protocol = DeviceManagerMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl DeviceManagerSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// 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 wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<DeviceManagerEvent, fidl::Error> {
        DeviceManagerEvent::decode(self.client.wait_for_event::<DeviceManagerMarker>(deadline)?)
    }

    /// Formats the device, destroying any previously-secured data.  A new data
    /// key is generated and wrapped with the provided `key` into key slot `slot`,
    /// Returns `ZX_ERR_BAD_STATE` if the device is not currently sealed.
    /// Returns `ZX_OK` on success.
    pub fn r#format(
        &self,
        mut key: &[u8],
        mut slot: u8,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<i32, fidl::Error> {
        let _response = self.client.send_query::<
            DeviceManagerFormatRequest,
            DeviceManagerFormatResponse,
            DeviceManagerMarker,
        >(
            (key, slot,),
            0x5d10415465425f82,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.status)
    }

    /// Attempts to unseal the device by using the provided master key to unwrap
    /// the data key wrapped in the specified key slot.  If the key provided was
    /// the correct key for this slot, then the device node responding to this
    /// protocol will create an unsealed zxcrypt device as a child of itself in
    /// the device tree before returning success.
    /// Returns `ZX_ERR_INVALID_ARGS` if `slot` is invalid.
    /// Returns `ZX_ERR_BAD_STATE` and keeps the device open if the device is already unsealed.
    /// Returns other errors if operations on the underlying block device return errors.
    /// Returns `ZX_OK` on success.
    pub fn r#unseal(
        &self,
        mut key: &[u8],
        mut slot: u8,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<i32, fidl::Error> {
        let _response = self.client.send_query::<
            DeviceManagerUnsealRequest,
            DeviceManagerUnsealResponse,
            DeviceManagerMarker,
        >(
            (key, slot,),
            0x170f834d39ed94fb,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.status)
    }

    /// Seals the device, causing any previously-created child zxcrypt Device to
    /// be removed some time later.  (Someday we'd like this to only return once
    /// the unsealed child device is removed, but that's not straightforward today.)
    /// Returns `ZX_ERR_BAD_STATE` if the device is already sealed.
    /// Returns `ZX_OK` on success.
    pub fn r#seal(&self, ___deadline: zx::MonotonicInstant) -> Result<i32, fidl::Error> {
        let _response = self.client.send_query::<
            fidl::encoding::EmptyPayload,
            DeviceManagerSealResponse,
            DeviceManagerMarker,
        >(
            (),
            0xe63c7aa7840fbf4,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.status)
    }

    /// Shreds the device, permanently overwriting the keys that would allow
    /// `Unseal()`ing the device again in the future.  This call does *not*
    /// impact the current sealed/unsealed state of the device -- if currently
    /// unsealed, the device will remain in that state until `Seal()` is called
    /// or the device is unbound.
    /// Returns `ZX_OK` on success.
    /// Returns other errors if operations on the underlying block device return errors.
    pub fn r#shred(&self, ___deadline: zx::MonotonicInstant) -> Result<i32, fidl::Error> {
        let _response = self.client.send_query::<
            fidl::encoding::EmptyPayload,
            DeviceManagerShredResponse,
            DeviceManagerMarker,
        >(
            (),
            0x1fbff042770086c,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.status)
    }
}

#[cfg(target_os = "fuchsia")]
impl From<DeviceManagerSynchronousProxy> for zx::NullableHandle {
    fn from(value: DeviceManagerSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for DeviceManagerSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for DeviceManagerSynchronousProxy {
    type Protocol = DeviceManagerMarker;

    fn from_client(value: fidl::endpoints::ClientEnd<DeviceManagerMarker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[derive(Debug, Clone)]
pub struct DeviceManagerProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for DeviceManagerProxy {
    type Protocol = DeviceManagerMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl DeviceManagerProxy {
    /// Create a new Proxy for fuchsia.hardware.block.encrypted/DeviceManager.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <DeviceManagerMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> DeviceManagerEventStream {
        DeviceManagerEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Formats the device, destroying any previously-secured data.  A new data
    /// key is generated and wrapped with the provided `key` into key slot `slot`,
    /// Returns `ZX_ERR_BAD_STATE` if the device is not currently sealed.
    /// Returns `ZX_OK` on success.
    pub fn r#format(
        &self,
        mut key: &[u8],
        mut slot: u8,
    ) -> fidl::client::QueryResponseFut<i32, fidl::encoding::DefaultFuchsiaResourceDialect> {
        DeviceManagerProxyInterface::r#format(self, key, slot)
    }

    /// Attempts to unseal the device by using the provided master key to unwrap
    /// the data key wrapped in the specified key slot.  If the key provided was
    /// the correct key for this slot, then the device node responding to this
    /// protocol will create an unsealed zxcrypt device as a child of itself in
    /// the device tree before returning success.
    /// Returns `ZX_ERR_INVALID_ARGS` if `slot` is invalid.
    /// Returns `ZX_ERR_BAD_STATE` and keeps the device open if the device is already unsealed.
    /// Returns other errors if operations on the underlying block device return errors.
    /// Returns `ZX_OK` on success.
    pub fn r#unseal(
        &self,
        mut key: &[u8],
        mut slot: u8,
    ) -> fidl::client::QueryResponseFut<i32, fidl::encoding::DefaultFuchsiaResourceDialect> {
        DeviceManagerProxyInterface::r#unseal(self, key, slot)
    }

    /// Seals the device, causing any previously-created child zxcrypt Device to
    /// be removed some time later.  (Someday we'd like this to only return once
    /// the unsealed child device is removed, but that's not straightforward today.)
    /// Returns `ZX_ERR_BAD_STATE` if the device is already sealed.
    /// Returns `ZX_OK` on success.
    pub fn r#seal(
        &self,
    ) -> fidl::client::QueryResponseFut<i32, fidl::encoding::DefaultFuchsiaResourceDialect> {
        DeviceManagerProxyInterface::r#seal(self)
    }

    /// Shreds the device, permanently overwriting the keys that would allow
    /// `Unseal()`ing the device again in the future.  This call does *not*
    /// impact the current sealed/unsealed state of the device -- if currently
    /// unsealed, the device will remain in that state until `Seal()` is called
    /// or the device is unbound.
    /// Returns `ZX_OK` on success.
    /// Returns other errors if operations on the underlying block device return errors.
    pub fn r#shred(
        &self,
    ) -> fidl::client::QueryResponseFut<i32, fidl::encoding::DefaultFuchsiaResourceDialect> {
        DeviceManagerProxyInterface::r#shred(self)
    }
}

impl DeviceManagerProxyInterface for DeviceManagerProxy {
    type FormatResponseFut =
        fidl::client::QueryResponseFut<i32, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#format(&self, mut key: &[u8], mut slot: u8) -> Self::FormatResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<i32, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                DeviceManagerFormatResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x5d10415465425f82,
            >(_buf?)?;
            Ok(_response.status)
        }
        self.client.send_query_and_decode::<DeviceManagerFormatRequest, i32>(
            (key, slot),
            0x5d10415465425f82,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type UnsealResponseFut =
        fidl::client::QueryResponseFut<i32, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#unseal(&self, mut key: &[u8], mut slot: u8) -> Self::UnsealResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<i32, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                DeviceManagerUnsealResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x170f834d39ed94fb,
            >(_buf?)?;
            Ok(_response.status)
        }
        self.client.send_query_and_decode::<DeviceManagerUnsealRequest, i32>(
            (key, slot),
            0x170f834d39ed94fb,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type SealResponseFut =
        fidl::client::QueryResponseFut<i32, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#seal(&self) -> Self::SealResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<i32, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                DeviceManagerSealResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0xe63c7aa7840fbf4,
            >(_buf?)?;
            Ok(_response.status)
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, i32>(
            (),
            0xe63c7aa7840fbf4,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type ShredResponseFut =
        fidl::client::QueryResponseFut<i32, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#shred(&self) -> Self::ShredResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<i32, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                DeviceManagerShredResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x1fbff042770086c,
            >(_buf?)?;
            Ok(_response.status)
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, i32>(
            (),
            0x1fbff042770086c,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

pub struct DeviceManagerEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for DeviceManagerEventStream {}

impl futures::stream::FusedStream for DeviceManagerEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for DeviceManagerEventStream {
    type Item = Result<DeviceManagerEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(DeviceManagerEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum DeviceManagerEvent {}

impl DeviceManagerEvent {
    /// Decodes a message buffer as a [`DeviceManagerEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<DeviceManagerEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <DeviceManagerMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.hardware.block.encrypted/DeviceManager.
pub struct DeviceManagerRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for DeviceManagerRequestStream {}

impl futures::stream::FusedStream for DeviceManagerRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for DeviceManagerRequestStream {
    type Protocol = DeviceManagerMarker;
    type ControlHandle = DeviceManagerControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        DeviceManagerControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for DeviceManagerRequestStream {
    type Item = Result<DeviceManagerRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled DeviceManagerRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))));
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x5d10415465425f82 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            DeviceManagerFormatRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<DeviceManagerFormatRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            DeviceManagerControlHandle { inner: this.inner.clone() };
                        Ok(DeviceManagerRequest::Format {
                            key: req.key,
                            slot: req.slot,

                            responder: DeviceManagerFormatResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x170f834d39ed94fb => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            DeviceManagerUnsealRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<DeviceManagerUnsealRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            DeviceManagerControlHandle { inner: this.inner.clone() };
                        Ok(DeviceManagerRequest::Unseal {
                            key: req.key,
                            slot: req.slot,

                            responder: DeviceManagerUnsealResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0xe63c7aa7840fbf4 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            DeviceManagerControlHandle { inner: this.inner.clone() };
                        Ok(DeviceManagerRequest::Seal {
                            responder: DeviceManagerSealResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x1fbff042770086c => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            DeviceManagerControlHandle { inner: this.inner.clone() };
                        Ok(DeviceManagerRequest::Shred {
                            responder: DeviceManagerShredResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <DeviceManagerMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// An interface to the zxcrypt driver, as bound to a single block device with
/// a zxcrypt superblock.  zxcrypt devices are encrypted, and before their
/// plaintext contents can be accessed, they must be unsealed with a key.
/// This protocol allows the caller to make requests to unseal the device (by
/// providing the appropriate key) and to seal the device (rendering its
/// contents inaccessible).
#[derive(Debug)]
pub enum DeviceManagerRequest {
    /// Formats the device, destroying any previously-secured data.  A new data
    /// key is generated and wrapped with the provided `key` into key slot `slot`,
    /// Returns `ZX_ERR_BAD_STATE` if the device is not currently sealed.
    /// Returns `ZX_OK` on success.
    Format { key: Vec<u8>, slot: u8, responder: DeviceManagerFormatResponder },
    /// Attempts to unseal the device by using the provided master key to unwrap
    /// the data key wrapped in the specified key slot.  If the key provided was
    /// the correct key for this slot, then the device node responding to this
    /// protocol will create an unsealed zxcrypt device as a child of itself in
    /// the device tree before returning success.
    /// Returns `ZX_ERR_INVALID_ARGS` if `slot` is invalid.
    /// Returns `ZX_ERR_BAD_STATE` and keeps the device open if the device is already unsealed.
    /// Returns other errors if operations on the underlying block device return errors.
    /// Returns `ZX_OK` on success.
    Unseal { key: Vec<u8>, slot: u8, responder: DeviceManagerUnsealResponder },
    /// Seals the device, causing any previously-created child zxcrypt Device to
    /// be removed some time later.  (Someday we'd like this to only return once
    /// the unsealed child device is removed, but that's not straightforward today.)
    /// Returns `ZX_ERR_BAD_STATE` if the device is already sealed.
    /// Returns `ZX_OK` on success.
    Seal { responder: DeviceManagerSealResponder },
    /// Shreds the device, permanently overwriting the keys that would allow
    /// `Unseal()`ing the device again in the future.  This call does *not*
    /// impact the current sealed/unsealed state of the device -- if currently
    /// unsealed, the device will remain in that state until `Seal()` is called
    /// or the device is unbound.
    /// Returns `ZX_OK` on success.
    /// Returns other errors if operations on the underlying block device return errors.
    Shred { responder: DeviceManagerShredResponder },
}

impl DeviceManagerRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_format(self) -> Option<(Vec<u8>, u8, DeviceManagerFormatResponder)> {
        if let DeviceManagerRequest::Format { key, slot, responder } = self {
            Some((key, slot, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_unseal(self) -> Option<(Vec<u8>, u8, DeviceManagerUnsealResponder)> {
        if let DeviceManagerRequest::Unseal { key, slot, responder } = self {
            Some((key, slot, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_seal(self) -> Option<(DeviceManagerSealResponder)> {
        if let DeviceManagerRequest::Seal { responder } = self { Some((responder)) } else { None }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_shred(self) -> Option<(DeviceManagerShredResponder)> {
        if let DeviceManagerRequest::Shred { responder } = self { Some((responder)) } else { None }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            DeviceManagerRequest::Format { .. } => "format",
            DeviceManagerRequest::Unseal { .. } => "unseal",
            DeviceManagerRequest::Seal { .. } => "seal",
            DeviceManagerRequest::Shred { .. } => "shred",
        }
    }
}

#[derive(Debug, Clone)]
pub struct DeviceManagerControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl fidl::endpoints::ControlHandle for DeviceManagerControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: zx_status::Status) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl DeviceManagerControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct DeviceManagerFormatResponder {
    control_handle: std::mem::ManuallyDrop<DeviceManagerControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`DeviceManagerControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for DeviceManagerFormatResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for DeviceManagerFormatResponder {
    type ControlHandle = DeviceManagerControlHandle;

    fn control_handle(&self) -> &DeviceManagerControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl DeviceManagerFormatResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut status: i32) -> Result<(), fidl::Error> {
        let _result = self.send_raw(status);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut status: i32) -> Result<(), fidl::Error> {
        let _result = self.send_raw(status);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut status: i32) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<DeviceManagerFormatResponse>(
            (status,),
            self.tx_id,
            0x5d10415465425f82,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct DeviceManagerUnsealResponder {
    control_handle: std::mem::ManuallyDrop<DeviceManagerControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`DeviceManagerControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for DeviceManagerUnsealResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for DeviceManagerUnsealResponder {
    type ControlHandle = DeviceManagerControlHandle;

    fn control_handle(&self) -> &DeviceManagerControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl DeviceManagerUnsealResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut status: i32) -> Result<(), fidl::Error> {
        let _result = self.send_raw(status);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut status: i32) -> Result<(), fidl::Error> {
        let _result = self.send_raw(status);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut status: i32) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<DeviceManagerUnsealResponse>(
            (status,),
            self.tx_id,
            0x170f834d39ed94fb,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct DeviceManagerSealResponder {
    control_handle: std::mem::ManuallyDrop<DeviceManagerControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`DeviceManagerControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for DeviceManagerSealResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for DeviceManagerSealResponder {
    type ControlHandle = DeviceManagerControlHandle;

    fn control_handle(&self) -> &DeviceManagerControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl DeviceManagerSealResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut status: i32) -> Result<(), fidl::Error> {
        let _result = self.send_raw(status);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut status: i32) -> Result<(), fidl::Error> {
        let _result = self.send_raw(status);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut status: i32) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<DeviceManagerSealResponse>(
            (status,),
            self.tx_id,
            0xe63c7aa7840fbf4,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct DeviceManagerShredResponder {
    control_handle: std::mem::ManuallyDrop<DeviceManagerControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`DeviceManagerControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for DeviceManagerShredResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for DeviceManagerShredResponder {
    type ControlHandle = DeviceManagerControlHandle;

    fn control_handle(&self) -> &DeviceManagerControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl DeviceManagerShredResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut status: i32) -> Result<(), fidl::Error> {
        let _result = self.send_raw(status);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut status: i32) -> Result<(), fidl::Error> {
        let _result = self.send_raw(status);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut status: i32) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<DeviceManagerShredResponse>(
            (status,),
            self.tx_id,
            0x1fbff042770086c,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

mod internal {
    use super::*;
}