Struct IcmpFlowState 

pub struct IcmpFlowState {
    pub icmp_type: u8,
    pub icmp_code: u8,
    pub identifier: Option<u16>,
    pub request_count: u64,
    pub reply_count: u64,
    pub last_seq: Option<u16>,
    pub status: ConversationStatus,
}

ICMP/ICMPv6 conversation state.

Tracks ICMP-specific metadata for echo request/reply pairs and other ICMP types. Echo requests and replies are correlated using the ICMP identifier field.

Fields

icmp_type: u8

ICMP type (e.g., 8 for Echo Request, 0 for Echo Reply).

icmp_code: u8

ICMP code.

identifier: Option<u16>

ICMP identifier (for echo, timestamp, and other types that use it).

request_count: u64

Number of echo requests (type 8 for ICMP, 128 for ICMPv6).

reply_count: u64

Number of echo replies (type 0 for ICMP, 129 for ICMPv6).

last_seq: Option<u16>

Last sequence number seen in an echo packet.

status: ConversationStatus

Conversation status.

Implementations

impl IcmpFlowState

pub fn new(icmp_type: u8, icmp_code: u8) -> Self

pub fn process_packet( &mut self, packet: &Packet, buf: &[u8], icmp_type: u8, icmp_code: u8, )

Update state when a new ICMP packet is received.

Increments request or reply count based on ICMP type, and updates the identifier and sequence number fields if present.

pub fn check_timeout( &self, last_seen: Duration, now: Duration, config: &FlowConfig, ) -> bool

Check whether this flow has timed out.

Trait Implementations

impl Clone for IcmpFlowState

fn clone(&self) -> IcmpFlowState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IcmpFlowState

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

Formats the value using the given formatter.

impl Default for IcmpFlowState

fn default() -> Self

Returns the “default value” for a type.