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use super::{AddressBuffer, AddressNla};
use {Emitable, Parseable, Result, ADDRESS_HEADER_LEN};
#[derive(Debug, PartialEq, Eq, Clone)]
pub struct AddressMessage {
pub header: AddressHeader,
pub nlas: Vec<AddressNla>,
}
#[derive(Debug, PartialEq, Eq, Clone)]
pub struct AddressHeader {
pub family: u8,
pub prefix_len: u8,
pub flags: u8,
pub scope: u8,
pub index: u32,
}
impl Emitable for AddressHeader {
fn buffer_len(&self) -> usize {
ADDRESS_HEADER_LEN
}
fn emit(&self, buffer: &mut [u8]) {
let mut packet = AddressBuffer::new(buffer);
packet.set_family(self.family);
packet.set_prefix_len(self.prefix_len);
packet.set_flags(self.flags);
packet.set_scope(self.scope);
packet.set_index(self.index);
}
}
impl Emitable for AddressMessage {
fn buffer_len(&self) -> usize {
self.header.buffer_len() + self.nlas.as_slice().buffer_len()
}
fn emit(&self, buffer: &mut [u8]) {
self.header.emit(buffer);
self.nlas.as_slice().emit(buffer);
}
}
impl<T: AsRef<[u8]>> Parseable<AddressHeader> for AddressBuffer<T> {
fn parse(&self) -> Result<AddressHeader> {
Ok(AddressHeader {
family: self.family(),
prefix_len: self.prefix_len(),
flags: self.flags(),
scope: self.scope(),
index: self.index(),
})
}
}
impl<'buffer, T: AsRef<[u8]> + 'buffer> Parseable<AddressMessage> for AddressBuffer<&'buffer T> {
fn parse(&self) -> Result<AddressMessage> {
Ok(AddressMessage {
header: self.parse()?,
nlas: self.parse()?,
})
}
}
impl<'buffer, T: AsRef<[u8]> + 'buffer> Parseable<Vec<AddressNla>> for AddressBuffer<&'buffer T> {
fn parse(&self) -> Result<Vec<AddressNla>> {
let mut nlas = vec![];
for nla_buf in self.nlas() {
nlas.push(nla_buf?.parse()?);
}
Ok(nlas)
}
}