Struct BpfInstruction 

pub struct BpfInstruction {
    pub code: u16,
    pub jt: u8,
    pub jf: u8,
    pub k: u32,
}

A single BPF instruction.

Fields

code: u16

Opcode.

jt: u8

Jump target if condition is true.

jf: u8

Jump target if condition is false.

k: u32

Immediate value.

Implementations

impl BpfInstruction

pub fn load_word(offset: u32) -> Self

Create a load-word instruction at the given offset.

pub fn jump_eq(value: u32, jt: u8, jf: u8) -> Self

Create a jump-if-equal instruction.

pub fn jump_ge(value: u32, jt: u8, jf: u8) -> Self

Create a jump-if-greater-or-equal instruction.

pub fn jump_set(mask: u32, jt: u8, jf: u8) -> Self

Create a bitwise AND test (jump if set) instruction.

pub fn jump(offset: u32) -> Self

Create an unconditional jump.

pub fn ret(action: u32) -> Self

Create a return instruction.

pub fn alu_and(mask: u32) -> Self

Create an ALU AND instruction.

Trait Implementations

impl Clone for BpfInstruction

fn clone(&self) -> BpfInstruction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BpfInstruction

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

Formats the value using the given formatter.

impl PartialEq for BpfInstruction

fn eq(&self, other: &BpfInstruction) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for BpfInstruction

impl Eq for BpfInstruction

impl StructuralPartialEq for BpfInstruction