netlink_packet_route/route/
address.rs

1// SPDX-License-Identifier: MIT
2
3use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
4
5use netlink_packet_core::{DecodeError, Emitable};
6
7use crate::{
8    ip::{
9        emit_ip_to_buffer, parse_ipv4_addr, parse_ipv6_addr, IPV4_ADDR_LEN,
10        IPV6_ADDR_LEN,
11    },
12    route::MplsLabel,
13    AddressFamily,
14};
15
16#[derive(Debug, PartialEq, Eq, Clone)]
17#[non_exhaustive]
18pub enum RouteAddress {
19    Inet(Ipv4Addr),
20    Inet6(Ipv6Addr),
21    Mpls(MplsLabel),
22    Other(Vec<u8>),
23}
24
25impl From<IpAddr> for RouteAddress {
26    fn from(ip: IpAddr) -> Self {
27        match ip {
28            IpAddr::V4(ipv4) => Self::Inet(ipv4),
29            IpAddr::V6(ipv6) => Self::Inet6(ipv6),
30        }
31    }
32}
33
34impl RouteAddress {
35    pub(crate) fn parse(
36        address_family: AddressFamily,
37        payload: &[u8],
38    ) -> Result<Self, DecodeError> {
39        Ok(match address_family {
40            AddressFamily::Inet => Self::Inet(parse_ipv4_addr(payload)?),
41            AddressFamily::Inet6 => Self::Inet6(parse_ipv6_addr(payload)?),
42            #[cfg(any(target_os = "linux", target_os = "fuchsia"))]
43            AddressFamily::Mpls => Self::Mpls(MplsLabel::parse(payload)?),
44            _ => Self::Other(payload.to_vec()),
45        })
46    }
47}
48
49impl Emitable for RouteAddress {
50    fn buffer_len(&self) -> usize {
51        match self {
52            Self::Inet(_) => IPV4_ADDR_LEN,
53            Self::Inet6(_) => IPV6_ADDR_LEN,
54            Self::Mpls(v) => v.buffer_len(),
55            Self::Other(v) => v.len(),
56        }
57    }
58
59    fn emit(&self, buffer: &mut [u8]) {
60        match self {
61            Self::Inet(v) => emit_ip_to_buffer(&((*v).into()), buffer),
62            Self::Inet6(v) => emit_ip_to_buffer(&((*v).into()), buffer),
63            Self::Mpls(v) => v.emit(buffer),
64            Self::Other(v) => buffer.copy_from_slice(v.as_slice()),
65        }
66    }
67}
68
69impl From<Ipv4Addr> for RouteAddress {
70    fn from(v: Ipv4Addr) -> Self {
71        Self::Inet(v)
72    }
73}
74
75impl From<Ipv6Addr> for RouteAddress {
76    fn from(v: Ipv6Addr) -> Self {
77        Self::Inet6(v)
78    }
79}
80
81impl From<MplsLabel> for RouteAddress {
82    fn from(v: MplsLabel) -> Self {
83        Self::Mpls(v)
84    }
85}
netlink_packet_route/route/address.rs

netlink_packet_route/route/
address.rs
