Struct redbpf_probes::xdp::XdpContext

pub struct XdpContext {
    pub ctx: *mut xdp_md,
}

Context object provided to XDP programs.

XDP programs are passed a XdpContext instance as their argument. Through the context, programs can inspect, modify and redirect the underlying networking data.

Fields

ctx: *mut xdp_md

Implementations

impl XdpContext

pub fn inner(&self) -> *mut xdp_md

Returns the raw xdp_md context passed by the kernel.

Trait Implementations

impl Clone for XdpContext

fn clone(&self) -> XdpContext

Returns a copy of the value.

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

Performs copy-assignment from source.

impl NetworkBuffer for XdpContext

fn data_start(&self) -> usize

fn data_end(&self) -> usize

fn len(&self) -> usize

Returns the packet length.

unsafe fn ptr_at<U>(&self, addr: usize) -> NetworkResult<*const U>

Returns a raw pointer to a given address inside the buffer.

unsafe fn ptr_after<T, U>(&self, prev: *const T) -> NetworkResult<*const U>

Returns a raw pointer to the address following prev plus the size of a T

fn check_bounds(&self, start: usize, end: usize) -> NetworkResult<()>

fn eth(&self) -> NetworkResult<*const ethhdr>

Returns the packet’s Ethernet header if present.

fn ip(&self) -> NetworkResult<*const iphdr>

Returns the packet’s IP header if present.

fn transport(&self) -> NetworkResult<Transport>

Returns the packet’s transport header if present.

fn data(&self) -> NetworkResult<Data<Self>>

Returns the packet’s data starting after the transport headers.