Struct IcmpLayer 

pub struct IcmpLayer {
    stats: RwLock<NetworkLayerStats>,
    sockets: RwLock<BTreeMap<u16, Weak<IcmpSocket>>>,
    next_identifier: AtomicU16,
    self_weak: Weak<IcmpLayer>,
}

ICMP layer

Handles ICMP messages for network diagnostics.

Fields

stats: RwLock<NetworkLayerStats>

Statistics

sockets: RwLock<BTreeMap<u16, Weak<IcmpSocket>>>

ICMP sockets by identifier

next_identifier: AtomicU16

Identifier allocator

self_weak: Weak<IcmpLayer>

Implementations

impl IcmpLayer

fn compute_checksum(packet: &[u8]) -> u16

fn verify_checksum(packet: &[u8]) -> bool

pub fn new() -> Arc<Self>

Create a new ICMP layer

pub fn init(network_manager: &NetworkManager)

Initialize and register the ICMP layer with NetworkManager

Registers with NetworkManager and registers itself with Ipv4Layer for protocol number 1 (ICMP).

Panics

Panics if Ipv4Layer is not registered (must be initialized first).

pub fn create_socket(&self) -> Arc<IcmpSocket>

pub fn send_ping_request( &self, dest_ip: Ipv4Address, identifier: u16, sequence: u16, data: &[u8], next_layers: &[Arc<dyn NetworkLayer>], ) -> Result<(), SocketError>

Send an ICMP Echo Request (ping)

pub fn send_ping_reply( &self, dest_ip: Ipv4Address, identifier: u16, sequence: u16, data: &[u8], next_layers: &[Arc<dyn NetworkLayer>], ) -> Result<(), SocketError>

Send an ICMP Echo Reply

pub fn receive_packet( &self, packet: &[u8], src_ip: Ipv4Address, dst_ip: Ipv4Address, ) -> Result<(), SocketError>

Process received ICMP packet

fn deliver_echo_reply( &self, identifier: u16, payload: Vec<u8>, src_ip: Ipv4Address, sequence: u16, )

Trait Implementations

impl NetworkLayer for IcmpLayer

fn register_protocol(&self, _proto_num: u16, _handler: Arc<dyn NetworkLayer>)

Register a protocol handler for this layer

fn send( &self, _packet: &[u8], _context: &LayerContext, _next_layers: &[Arc<dyn NetworkLayer>], ) -> Result<(), SocketError>

Send a packet through this layer

fn receive( &self, _packet: &[u8], _context: Option<&LayerContext>, ) -> Result<(), SocketError>

Receive and process a packet at this layer

fn name(&self) -> &'static str

Get layer name for debugging

fn stats(&self) -> NetworkLayerStats

Get layer statistics

fn as_any(&self) -> &dyn Any

Cast to Any for safe downcasting

fn configure( &self, config: &SocketConfig, next_layers: &[Arc<dyn NetworkLayer>], ) -> Result<(), SocketError>

Configure this layer with socket-specific parameters