Struct FlowKey 

pub struct FlowKey {
    pub src_ip: IpAddr,
    pub dst_ip: IpAddr,
    pub src_port: u16,
    pub dst_port: u16,
    pub protocol: u8,
}

A 5-tuple that uniquely identifies a network flow.

Fields

src_ip: IpAddr

dst_ip: IpAddr

src_port: u16

dst_port: u16

protocol: u8

IP protocol number (6 = TCP, 17 = UDP, 1 = ICMP, …).

Implementations

impl FlowKey

pub fn new( src_ip: IpAddr, dst_ip: IpAddr, src_port: u16, dst_port: u16, protocol: u8, ) -> Self

Create a new flow key, normalising IPv4-mapped IPv6 addresses to IPv4.

pub fn flow_id(&self, unidirectional: bool) -> u64

Compute a deterministic 64-bit flow ID using rapidhash.

Bidirectional (default): A→B and B→A produce the same ID by canonicalising the two endpoints so that min_ep always comes first.

Unidirectional: hash the 5-tuple as-is, direction-sensitive.

IPs are serialised as fixed-width big-endian bytes (4 for IPv4, 16 for IPv6) prefixed with a family tag to prevent collisions between address families.

Trait Implementations

impl Clone for FlowKey

fn clone(&self) -> FlowKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FlowKey

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

Formats the value using the given formatter.

impl Hash for FlowKey

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FlowKey

fn eq(&self, other: &FlowKey) -> 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 Eq for FlowKey

impl StructuralPartialEq for FlowKey