Enum smoltcp::wire::IpRepr

pub enum IpRepr {
    Unspecified {
        src_addr: Address,
        dst_addr: Address,
        protocol: Protocol,
        payload_len: usize,
    },
    Ipv4(Ipv4Repr),
    // some variants omitted
}

An IP packet representation.

This enum abstracts the various versions of IP packets. It either contains a concrete high-level representation for some IP protocol version, or an unspecified representation, which permits the IpAddress::Unspecified addresses.

Variants

Unspecified

Fields of Unspecified

src_addr: Address
dst_addr: Address
protocol: Protocol
payload_len: usize

Ipv4(Ipv4Repr)

Methods

impl IpRepr

fn version(&self) -> Version

Return the protocol version.

fn src_addr(&self) -> Address

Return the source address.

fn dst_addr(&self) -> Address

Return the destination address.

fn protocol(&self) -> Protocol

Return the protocol.

fn payload_len(&self) -> usize

Return the payload length.

fn set_payload_len(&mut self, length: usize)

Set the payload length.

fn lower(&self, fallback_src_addrs: &[Address]) -> Result<IpRepr>

Convert an unspecified representation into a concrete one, or return Err(Error::Unaddressable) if not possible.

Panics

This function panics if source and destination addresses belong to different families, or the destination address is unspecified, since this indicates a logic error.

fn buffer_len(&self) -> usize

Return the length of a header that will be emitted from this high-level representation.

Panics

This function panics if invoked on an unspecified representation.

fn emit<T: AsRef<[u8]> + AsMut<[u8]>>(&self, buffer: T)

Emit this high-level representation into a buffer.

Panics

This function panics if invoked on an unspecified representation.

fn total_len(&self) -> usize

Return the total length of a packet that will be emitted from this high-level representation.

This is the same as repr.buffer_len() + repr.payload_len().

Panics

This function panics if invoked on an unspecified representation.

Trait Implementations

impl Debug for IpRepr

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for IpRepr

fn clone(&self) -> IpRepr

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialEq for IpRepr

fn eq(&self, __arg_0: &IpRepr) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &IpRepr) -> bool

This method tests for !=.

impl Eq for IpRepr

impl From<Ipv4Repr> for IpRepr

fn from(repr: Ipv4Repr) -> IpRepr

Performs the conversion.