Struct net_util::sys::linux::tap::fakes::FakeTap

pub struct FakeTap {
    tap_file: File,
}

Fields

tap_file: File

Trait Implementations

impl AsRawDescriptor for FakeTap

fn as_raw_descriptor(&self) -> RawDescriptor

Returns the underlying raw descriptor.

impl AsRawFd for FakeTap

fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor.

impl Drop for FakeTap

fn drop(&mut self)

Executes the destructor for this type.

impl FileReadWriteVolatile for FakeTap

fn read_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>

Read bytes from this file into the given slice, returning the number of bytes read on success.

fn read_vectored_volatile( &mut self, bufs: &[VolatileSlice<'_>] ) -> Result<usize>

Like read_volatile, except it reads to a slice of buffers. Data is copied to fill each buffer in order, with the final buffer written to possibly being only partially filled. This method must behave as a single call to read_volatile with the buffers concatenated would. The default implementation calls read_volatile with either the first nonempty buffer provided, or returns Ok(0) if none exists.

fn write_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>

Write bytes from the slice to the given file, returning the number of bytes written on success.

fn write_vectored_volatile( &mut self, bufs: &[VolatileSlice<'_>] ) -> Result<usize>

Like write_volatile, except that it writes from a slice of buffers. Data is copied from each buffer in order, with the final buffer read from possibly being only partially consumed. This method must behave as a call to write_volatile with the buffers concatenated would. The default implementation calls write_volatile with either the first nonempty buffer provided, or returns Ok(0) if none exists.

fn read_exact_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<(), Error>

Reads bytes from this into the given slice until all bytes in the slice are written, or an error is returned.

fn write_all_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<(), Error>

Write bytes from the slice to the given file until all the bytes from the slice have been written, or an error is returned.

impl Read for FakeTap

fn read(&mut self, _: &mut [u8]) -> IoResult<usize>

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>

Like read, except that it reads into a slice of buffers.

fn is_read_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Reader has an efficient read_vectored implementation.

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>

Read all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>

Read all bytes until EOF in this source, appending them to buf.

fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>

Read the exact number of bytes required to fill buf.

fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)

Pull some bytes from this source into the specified buffer.

fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)

Read the exact number of bytes required to fill cursor.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adaptor for this instance of Read.

fn bytes(self) -> Bytes<Self>

where Self: Sized,

Transforms this Read instance to an Iterator over its bytes.

fn chain<R>(self, next: R) -> Chain<Self, R>

where R: Read, Self: Sized,

Creates an adapter which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

where Self: Sized,

Creates an adapter which will read at most limit bytes from it.

impl TapTCommon for FakeTap

fn new(_vnet_hdr: bool, _multi_vq: bool) -> Result<Self>

Create a new tap interface. Set the vnet_hdr flag to true to allow offloading on this tap, which will add an extra 12 byte virtio net header to incoming frames. Offloading cannot be used if vnet_hdr is false. Set ‘multi_vq’ to true if tap has multi virt queue pairs.

fn new_with_name(_: &[u8], _: bool, _: bool) -> Result<FakeTap>

Create a new tap interface named name, or open it if it already exists with the same parameters.

fn into_mq_taps(self, _vq_pairs: u16) -> Result<Vec<FakeTap>>

Change the origin tap into multiqueue taps, this means create other taps based on the origin tap.

fn ip_addr(&self) -> Result<Ipv4Addr>

Get the host-side IP address for the tap interface.

fn set_ip_addr(&self, _: Ipv4Addr) -> Result<()>

Set the host-side IP address for the tap interface.

fn netmask(&self) -> Result<Ipv4Addr>

Get the netmask for the tap interface’s subnet.

fn set_netmask(&self, _: Ipv4Addr) -> Result<()>

Set the netmask for the subnet that the tap interface will exist on.

fn mtu(&self) -> Result<u16>

Get the MTU for the tap interface.

fn set_mtu(&self, _: u16) -> Result<()>

Set the MTU for the tap interface.

fn mac_address(&self) -> Result<MacAddress>

Get the mac address for the tap interface.

fn set_mac_address(&self, _: MacAddress) -> Result<()>

Set the mac address for the tap interface.

fn set_offload(&self, _: c_uint) -> Result<()>

Set the offload flags for the tap interface.

fn enable(&self) -> Result<()>

Enable the tap interface.

fn try_clone(&self) -> Result<Self>

Try to clone

unsafe fn from_raw_descriptor(_descriptor: RawDescriptor) -> Result<Self>

Convert raw descriptor to

impl TapTLinux for FakeTap

fn set_vnet_hdr_size(&self, _: usize) -> Result<()>

Set the size of the vnet hdr.

fn if_flags(&self) -> u32

Get the interface flags

impl Write for FakeTap

fn write(&mut self, _: &[u8]) -> IoResult<usize>

Write a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> IoResult<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Writer has an efficient write_vectored implementation.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Write.

impl TapT for FakeTap