netlink_packet_route/link/proto_info/
bridge.rs

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// SPDX-License-Identifier: MIT

use anyhow::Context;
use netlink_packet_utils::nla::{DefaultNla, Nla, NlaBuffer, NlasIterator};
use netlink_packet_utils::traits::Parseable;
use netlink_packet_utils::DecodeError;

#[derive(Clone, Eq, PartialEq, Debug)]
#[non_exhaustive]
pub enum LinkProtoInfoBridge {
    Other(DefaultNla),
}

pub(crate) struct VecLinkProtoInfoBridge(pub(crate) Vec<LinkProtoInfoBridge>);

impl<'a, T: AsRef<[u8]> + ?Sized> Parseable<NlaBuffer<&'a T>> for VecLinkProtoInfoBridge {
    type Error = DecodeError;
    fn parse(buf: &NlaBuffer<&'a T>) -> Result<Self, DecodeError> {
        let mut nlas = vec![];
        for nla in NlasIterator::new(buf.into_inner()) {
            let nla = nla.context(format!("invalid bridge IFLA_PROTINFO {:?}", buf.value()))?;
            nlas.push(LinkProtoInfoBridge::parse(&nla)?);
        }
        Ok(Self(nlas))
    }
}

impl Nla for LinkProtoInfoBridge {
    fn value_len(&self) -> usize {
        match *self {
            Self::Other(ref nla) => nla.value_len(),
        }
    }

    fn emit_value(&self, buffer: &mut [u8]) {
        match *self {
            Self::Other(ref nla) => nla.emit_value(buffer),
        }
    }

    fn kind(&self) -> u16 {
        match *self {
            Self::Other(ref nla) => nla.kind(),
        }
    }
}

impl<'a, T: AsRef<[u8]> + ?Sized> Parseable<NlaBuffer<&'a T>> for LinkProtoInfoBridge {
    type Error = DecodeError;
    fn parse(buf: &NlaBuffer<&'a T>) -> Result<Self, DecodeError> {
        Ok(Self::Other(
            DefaultNla::parse(buf)
                .context(format!("invalid bridge IFLA_PROTINFO {:?}", buf.value()))?,
        ))
    }
}