Struct bcc::XDP

pub struct XDP { /* fields omitted */ }

An object that can run BPF code as an XDP program that runs on every packet at the driver level.

Implementations

impl XDP

pub fn new() -> Self

Create a new XDP object with the defaults. By default, the XDP program is run in generic mode [XDP_FLAGS_SKB_MODE] and will replace any already running program on the driver. Further initialization is required before attaching.

pub fn handler<T: AsRef<str>>(self, name: T) -> Self

Specify the name of the XDP handler within the BPF code. This is a required configuration.

pub fn device<T: AsRef<str>>(self, name: T) -> Self

Specify the name of the network device on which to run the BPF program. This is a required configuration.

pub fn mode(self, mode: Mode) -> Self

Specify the XDP mode under which to run the BPF program.

pub fn attach(self, bpf: &mut BPF) -> Result<(), BccError>

Load the configured handler as an XDP program onto the configured device and attach it to the BPF struct. The XDP program is unloaded from the device once the BPF struct goes out of scope.

Trait Implementations

impl Default for XDP

fn default() -> Self

Returns the “default value” for a type.