Struct EthernetWriter

pub struct EthernetWriter<'a> {
    pub bytes: &'a mut [u8],
    /* private fields */
}

Writes Ethernet header fields.

Fields

bytes: &'a mut [u8]

Implementations

impl<'a> EthernetWriter<'a>

pub fn new(bytes: &'a mut [u8]) -> Result<Self, &'static str>

Creates a new EthernetWriter from the given slice.

pub fn header_len(&self) -> usize

Returns the header length in bytes.

pub fn set_dest_mac(&mut self, dest: &[u8; 6])

Sets the destination MAC address field.

pub fn set_src_mac(&mut self, src: &[u8; 6])

Sets the source MAC address field.

pub fn set_ethertype(&mut self, ethertype: u16)

Sets the EtherType field.

EtherType indicates which protocol is encapsulated in the payload.

pub fn set_vlan_tag(&mut self, tpid: u16, tci: u16) -> Result<(), &'static str>

Sets a VLAN tag.

Optionally present in the Ethernet frame header.

Increases the header length by VLAN_TAG_LENGTH.

pub fn set_double_vlan_tag( &mut self, outer_tpid: u16, outer_tci: u16, inner_tpid: u16, inner_tci: u16, ) -> Result<(), &'static str>

Sets a double VLAN tag (Q-in-Q).

Optionally present in the Ethernet frame header.

Increases the header length by 2 * VLAN_TAG_LENGTH.