netlink_packet_route/route/
address.rs

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1// SPDX-License-Identifier: MIT
2
3use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
4
5use netlink_packet_utils::{DecodeError, Emitable};
6
7use crate::ip::{
8    emit_ip_to_buffer, parse_ipv4_addr, parse_ipv6_addr, IPV4_ADDR_LEN, IPV6_ADDR_LEN,
9};
10use crate::route::MplsLabel;
11use crate::AddressFamily;
12
13#[derive(Debug, PartialEq, Eq, Clone)]
14#[non_exhaustive]
15pub enum RouteAddress {
16    Inet(Ipv4Addr),
17    Inet6(Ipv6Addr),
18    Mpls(MplsLabel),
19    Other(Vec<u8>),
20}
21
22impl From<IpAddr> for RouteAddress {
23    fn from(ip: IpAddr) -> Self {
24        match ip {
25            IpAddr::V4(ipv4) => Self::Inet(ipv4),
26            IpAddr::V6(ipv6) => Self::Inet6(ipv6),
27        }
28    }
29}
30
31impl RouteAddress {
32    pub fn parse(address_family: AddressFamily, payload: &[u8]) -> Result<Self, DecodeError> {
33        Ok(match address_family {
34            AddressFamily::Inet => Self::Inet(parse_ipv4_addr(payload)?),
35            AddressFamily::Inet6 => Self::Inet6(parse_ipv6_addr(payload)?),
36            #[cfg(any(target_os = "linux", target_os = "fuchsia"))]
37            AddressFamily::Mpls => Self::Mpls(MplsLabel::parse(payload)?),
38            _ => Self::Other(payload.to_vec()),
39        })
40    }
41}
42
43impl Emitable for RouteAddress {
44    fn buffer_len(&self) -> usize {
45        match self {
46            Self::Inet(_) => IPV4_ADDR_LEN,
47            Self::Inet6(_) => IPV6_ADDR_LEN,
48            Self::Mpls(v) => v.buffer_len(),
49            Self::Other(v) => v.len(),
50        }
51    }
52
53    fn emit(&self, buffer: &mut [u8]) {
54        match self {
55            Self::Inet(v) => emit_ip_to_buffer(&((*v).into()), buffer),
56            Self::Inet6(v) => emit_ip_to_buffer(&((*v).into()), buffer),
57            Self::Mpls(v) => v.emit(buffer),
58            Self::Other(v) => buffer.copy_from_slice(v.as_slice()),
59        }
60    }
61}
62
63impl From<Ipv4Addr> for RouteAddress {
64    fn from(v: Ipv4Addr) -> Self {
65        Self::Inet(v)
66    }
67}
68
69impl From<Ipv6Addr> for RouteAddress {
70    fn from(v: Ipv6Addr) -> Self {
71        Self::Inet6(v)
72    }
73}
74
75impl From<MplsLabel> for RouteAddress {
76    fn from(v: MplsLabel) -> Self {
77        Self::Mpls(v)
78    }
79}
netlink_packet_route/route/address.rs

netlink_packet_route/route/
address.rs
