Struct NetfilterOpts

pub struct NetfilterOpts {
    pub protocol_family: i32,
    pub hooknum: i32,
    pub priority: i32,
    pub flags: u32,
    /* private fields */
}

Options to be provided when attaching a program to a netfilter hook.

Fields

protocol_family: i32

Protocol family for netfilter; supported values are NFPROTO_IPV4 (2) for IPv4 and NFPROTO_IPV6 (10) for IPv6.

hooknum: i32

Hook number for netfilter; supported values include:

• NF_INET_PRE_ROUTING (0) - Pre-routing
• NF_INET_LOCAL_IN (1) - Local input
• NF_INET_FORWARD (2) - Forwarding
• NF_INET_LOCAL_OUT (3) - Local output
• NF_INET_POST_ROUTING (4) - Post-routing

priority: i32

Priority of the netfilter hook. Lower values are invoked first. Values NF_IP_PRI_FIRST (-2147483648) and NF_IP_PRI_LAST (2147483647) are not allowed. If BPF_F_NETFILTER_IP_DEFRAG is set in flags, the priority must be higher than NF_IP_PRI_CONNTRACK_DEFRAG (-400).

flags: u32

Bitmask of flags for the netfilter hook.

• NF_IP_PRI_CONNTRACK_DEFRAG - Enables defragmentation of IP fragments. This hook will only see defragmented packets.

Trait Implementations

impl Clone for NetfilterOpts

fn clone(&self) -> NetfilterOpts

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NetfilterOpts

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for NetfilterOpts

fn default() -> NetfilterOpts

Returns the “default value” for a type.

impl From<NetfilterOpts> for bpf_netfilter_opts

fn from(opts: NetfilterOpts) -> Self

Converts to this type from the input type.