Struct AuthenticationHeaderWriter

pub struct AuthenticationHeaderWriter<'a> {
    pub bytes: &'a mut [u8],
}

Writes the Authentication Header fields.

Fields

bytes: &'a mut [u8]

Implementations

impl<'a> AuthenticationHeaderWriter<'a>

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

Creates a new AuthenticationHeaderWriter from the given data slice.

pub fn header_len(&self) -> usize

Returns the total header length in bytes.

pub fn set_next_header(&mut self, next_header: u8)

Sets the next header field.

Identifies the type of the next header.

pub fn set_payload_len(&mut self, payload_len: u8)

Sets the payload length field.

Length of this Authentication Header with scaling factor of 4, minus 2.

E.g: Header length = (payload_len + 2) * 4.

pub fn set_reserved(&mut self, reserved: u16)

Sets the reserved field.

Should be all zeros.

pub fn set_spi(&mut self, spi: u32)

Sets the Security Parameters Index field.

Arbitrary value which is used (together with the dest_addr) to identify the security association of the receiving party.

pub fn set_sequence_number(&mut self, sequence_number: u32)

Sets the sequence number field.

Monotonically increasing counter value to prevent replay attacks.

pub fn set_authentication_data( &mut self, data: &[u8], ) -> Result<(), &'static str>

Sets the authentication data field.

Padding:

• 4-octet alignment for IPv4 packets.
• 8-octet alignment for IPv6 packets.