netlink_packet_route/tc/stats/
xstats.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
// SPDX-License-Identifier: MIT

use crate::tc::{TcError, TcFqCodelXstats, TcQdiscFqCodel};
use netlink_packet_utils::nla::NlaBuffer;
use netlink_packet_utils::traits::{Emitable, Parseable, ParseableParametrized};

#[derive(Debug, PartialEq, Eq, Clone)]
#[non_exhaustive]
pub enum TcXstats {
    FqCodel(TcFqCodelXstats),
    Other(Vec<u8>),
}

impl Emitable for TcXstats {
    fn buffer_len(&self) -> usize {
        match self {
            Self::FqCodel(v) => v.buffer_len(),
            Self::Other(v) => v.len(),
        }
    }

    fn emit(&self, buffer: &mut [u8]) {
        match self {
            Self::FqCodel(v) => v.emit(buffer),
            Self::Other(v) => buffer.copy_from_slice(v.as_slice()),
        }
    }
}

impl<'a, T> ParseableParametrized<NlaBuffer<&'a T>, &str> for TcXstats
where
    T: AsRef<[u8]> + ?Sized,
{
    type Error = TcError;
    fn parse_with_param(buf: &NlaBuffer<&'a T>, kind: &str) -> Result<TcXstats, Self::Error> {
        Ok(match kind {
            TcQdiscFqCodel::KIND => TcXstats::FqCodel(TcFqCodelXstats::parse(buf.value())?),
            _ => TcXstats::Other(buf.value().to_vec()),
        })
    }
}