fidl_fuchsia_fvm/

fidl_fuchsia_fvm.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_fvm__common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

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

impl fidl::endpoints::ProtocolMarker for ResetMarker {
    type Proxy = ResetProxy;
    type RequestStream = ResetRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = ResetSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.fvm.Reset";
}
impl fidl::endpoints::DiscoverableProtocolMarker for ResetMarker {}
pub type ResetShredEncryptedVolumesResult = Result<(), i32>;

pub trait ResetProxyInterface: Send + Sync {
    type ShredEncryptedVolumesResponseFut: std::future::Future<Output = Result<ResetShredEncryptedVolumesResult, fidl::Error>>
        + Send;
    fn r#shred_encrypted_volumes(&self) -> Self::ShredEncryptedVolumesResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct ResetSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for ResetSynchronousProxy {
    type Proxy = ResetProxy;
    type Protocol = ResetMarker;

    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 ResetSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name = <ResetMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

    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<ResetEvent, fidl::Error> {
        ResetEvent::decode(self.client.wait_for_event(deadline)?)
    }

    /// Find the all zxcrypt partitions in fvm and replace the superblock and keys with random
    /// data, effectively shredding the contents. Calling this method on a filesystem that is
    /// currently running will not interrupt the current session, but it will not be able to open
    /// the data volume again, causing it to be reformatted on the next boot.
    ///
    /// This is not cryptographically secure; the caller should take care to reset hardware keys.
    pub fn r#shred_encrypted_volumes(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ResetShredEncryptedVolumesResult, fidl::Error> {
        let _response = self.client.send_query::<
            fidl::encoding::EmptyPayload,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>,
        >(
            (),
            0x3b29035e93ea529c,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }
}

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

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

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

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

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

impl fidl::endpoints::Proxy for ResetProxy {
    type Protocol = ResetMarker;

    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 ResetProxy {
    /// Create a new Proxy for fuchsia.fvm/Reset.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <ResetMarker 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) -> ResetEventStream {
        ResetEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Find the all zxcrypt partitions in fvm and replace the superblock and keys with random
    /// data, effectively shredding the contents. Calling this method on a filesystem that is
    /// currently running will not interrupt the current session, but it will not be able to open
    /// the data volume again, causing it to be reformatted on the next boot.
    ///
    /// This is not cryptographically secure; the caller should take care to reset hardware keys.
    pub fn r#shred_encrypted_volumes(
        &self,
    ) -> fidl::client::QueryResponseFut<
        ResetShredEncryptedVolumesResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ResetProxyInterface::r#shred_encrypted_volumes(self)
    }
}

impl ResetProxyInterface for ResetProxy {
    type ShredEncryptedVolumesResponseFut = fidl::client::QueryResponseFut<
        ResetShredEncryptedVolumesResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#shred_encrypted_volumes(&self) -> Self::ShredEncryptedVolumesResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ResetShredEncryptedVolumesResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x3b29035e93ea529c,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            fidl::encoding::EmptyPayload,
            ResetShredEncryptedVolumesResult,
        >(
            (),
            0x3b29035e93ea529c,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

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

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

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

impl futures::Stream for ResetEventStream {
    type Item = Result<ResetEvent, 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(ResetEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

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

impl ResetEvent {
    /// Decodes a message buffer as a [`ResetEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<ResetEvent, 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: <ResetMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.fvm/Reset.
pub struct ResetRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

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

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

impl fidl::endpoints::RequestStream for ResetRequestStream {
    type Protocol = ResetMarker;
    type ControlHandle = ResetControlHandle;

    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 {
        ResetControlHandle { 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 ResetRequestStream {
    type Item = Result<ResetRequest, 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 ResetRequestStream 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 {
                    0x3b29035e93ea529c => {
                        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 = ResetControlHandle { inner: this.inner.clone() };
                        Ok(ResetRequest::ShredEncryptedVolumes {
                            responder: ResetShredEncryptedVolumesResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name: <ResetMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// Methods for resetting volumes, such as shredding user data.
#[derive(Debug)]
pub enum ResetRequest {
    /// Find the all zxcrypt partitions in fvm and replace the superblock and keys with random
    /// data, effectively shredding the contents. Calling this method on a filesystem that is
    /// currently running will not interrupt the current session, but it will not be able to open
    /// the data volume again, causing it to be reformatted on the next boot.
    ///
    /// This is not cryptographically secure; the caller should take care to reset hardware keys.
    ShredEncryptedVolumes { responder: ResetShredEncryptedVolumesResponder },
}

impl ResetRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_shred_encrypted_volumes(self) -> Option<(ResetShredEncryptedVolumesResponder)> {
        if let ResetRequest::ShredEncryptedVolumes { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ResetRequest::ShredEncryptedVolumes { .. } => "shred_encrypted_volumes",
        }
    }
}

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

impl fidl::endpoints::ControlHandle for ResetControlHandle {
    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 ResetControlHandle {}

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

/// Set the the channel to be shutdown (see [`ResetControlHandle::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 ResetShredEncryptedVolumesResponder {
    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 ResetShredEncryptedVolumesResponder {
    type ControlHandle = ResetControlHandle;

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

    fn send_raw(&self, mut result: Result<(), i32>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>>(
                result,
                self.tx_id,
                0x3b29035e93ea529c,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

mod internal {
    use super::*;
}