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use rustables_macros::{nfnetlink_enum, nfnetlink_struct};
use crate::sys::{
NFTA_EXTHDR_DREG, NFTA_EXTHDR_FLAGS, NFTA_EXTHDR_LEN, NFTA_EXTHDR_OFFSET, NFTA_EXTHDR_OP,
NFTA_EXTHDR_SREG, NFTA_EXTHDR_TYPE, NFT_EXTHDR_OP_IPV6, NFT_EXTHDR_OP_TCPOPT,
};
use super::{Expression, Register};
/// Header operation.
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
#[nfnetlink_enum(u32, nested = true)]
pub enum ExtHdrOp {
/// IPv6.
IPv6 = NFT_EXTHDR_OP_IPV6,
/// TCP options.
TCPOpt = NFT_EXTHDR_OP_TCPOPT,
}
/// Interacts with layer 4 header options.
#[derive(Default, Debug, Clone, PartialEq, Eq)]
#[nfnetlink_struct(nested = true)]
pub struct ExtHdr {
#[field(NFTA_EXTHDR_DREG)]
dreg: Register,
#[field(NFTA_EXTHDR_TYPE)]
typ: u8,
#[field(NFTA_EXTHDR_OFFSET)]
offset: u32,
#[field(NFTA_EXTHDR_LEN)]
len: u32,
#[field(NFTA_EXTHDR_FLAGS)]
flags: u32,
#[field(NFTA_EXTHDR_OP)]
op: ExtHdrOp,
#[field(NFTA_EXTHDR_SREG)]
sreg: Register,
}
impl Expression for ExtHdr {
fn get_name() -> &'static str {
"exthdr"
}
}
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