Struct BufferRef 

pub struct BufferRef(/* private fields */);

Reference to a VNET buffer

A &mut BufferRef is equivalent to a vnet_buffer_opaque_t * in C (a *vnet_buffer_opaque_t in Rust).

Implementations

impl BufferRef

pub unsafe fn from_ptr<'a>(ptr: *const vnet_buffer_opaque_t) -> &'a BufferRef

Create a &BufferRef from a raw pointer

Safety

• The pointer must be a valid and properly initialised vlib_buffer_t.
• The pointer must stay valid and the contents must not be mutated for the duration of the lifetime of the returned object.

pub unsafe fn from_ptr_mut<'a>( ptr: *mut vnet_buffer_opaque_t, ) -> &'a mut BufferRef

Create a &mut BufferRef from a raw pointer

Safety

• The pointer must be a valid and properly initialised vlib_buffer_t.
• The pointer must stay valid and the contents must not be mutated for the duration of the lifetime of the returned object.

pub fn as_ptr(&self) -> *mut vnet_buffer_opaque_t

Returns the raw pointer to the underlying vnet_buffer_opaque_t

pub fn feature_arc_index(&self) -> u8

Returns the index of the feature arc that the buffer is being processed from

pub fn rx_sw_if_index(&self) -> SwIfIndex

Returns the index of the receive software interface

pub fn set_rx_sw_if_index(&mut self, sw_if_index: SwIfIndex)

Set the index of the receive software interface

pub fn tx_sw_if_index(&self) -> Option<SwIfIndex>

Returns the index of the transmit software interface

pub fn set_tx_sw_if_index(&mut self, sw_if_index: Option<SwIfIndex>)

Set the index of the transmit software interface

If sw_if_index is None then it will be set to u32::MAX, which indicates to various nodes to use the interface from forwarding lookups.