Struct cross_socket::packet::icmp::IcmpPacket

pub struct IcmpPacket {
    pub icmp_type: IcmpType,
    pub icmp_code: u8,
    pub checksum: u16,
    pub payload: Vec<u8>,
}

Represents an ICMP packet.

Fields

icmp_type: IcmpType

icmp_code: u8

checksum: u16

payload: Vec<u8>

Implementations

impl IcmpPacket

pub fn from_bytes(packet: &[u8]) -> IcmpPacket

Examples found in repository

examples/socket/icmp.rs (line 47)

fn main() {
    let dst_ip: IpAddr = IpAddr::V4(Ipv4Addr::new(1, 1, 1, 1));
    let interface: Interface = cross_socket::interface::get_default_interface().unwrap();
    let socket_option = SocketOption {
        ip_version: IpVersion::V4,
        socket_type: SocketType::Raw,
        protocol: Some(IpNextLevelProtocol::Icmp),
        timeout: None,
        ttl: None,
        non_blocking: false,
    };
    let socket: Socket = Socket::new(socket_option).unwrap();
    // Create packet info
    let mut packet_info = PacketInfo::new();
    packet_info.src_ip = IpAddr::V4(interface.ipv4[0].addr);
    packet_info.dst_ip = dst_ip;
    packet_info.ip_protocol = Some(IpNextLevelProtocol::Icmp);
    packet_info.payload = vec![0; 0];

    // Build ICMP Echo Request packet
    let icmp_packet = cross_socket::packet::builder::build_icmp_packet();

    // Send ICMP Echo Request packets to 1.1.1.1
    let socket_addr = SocketAddr::new(dst_ip, 0);
    match socket.send_to(&icmp_packet, socket_addr) {
        Ok(packet_len) => {
            println!("Sent {} bytes", packet_len);
        }
        Err(e) => {
            println!("Error: {}", e);
        }
    }

    // Receive ICMP Echo Reply packets from 1.1.1.1
    println!("Waiting for ICMP Echo Reply... ");
    let mut buf = vec![0; 512];
    let (packet_len, _) = socket.receive_from(&mut buf).unwrap();
    let ip_packet = cross_socket::packet::ipv4::Ipv4Packet::from_bytes(&buf[..packet_len]);
    println!("Received {} bytes from {}", packet_len, ip_packet.source);
    let icmp_packet = cross_socket::packet::icmp::IcmpPacket::from_bytes(&ip_packet.payload);
    println!("Packet: {:?}", icmp_packet);
}

examples/datalink_socket/icmp_ping.rs (line 49)

fn main() {
    let interface: Interface = cross_socket::interface::get_default_interface().unwrap();
    // Create new socket
    let mut socket: DataLinkSocket = DataLinkSocket::new(interface, false).unwrap();
    // Create packet info
    let mut packet_info = PacketInfo::new();
    packet_info.src_mac = socket.interface.mac_addr.clone().unwrap();
    packet_info.dst_mac = socket.interface.gateway.clone().unwrap().mac_addr;
    packet_info.ether_type = EtherType::Ipv4;
    packet_info.src_ip = IpAddr::V4(socket.interface.ipv4[0].addr);
    packet_info.dst_ip = IpAddr::V4(std::net::Ipv4Addr::new(1, 1, 1, 1));
    packet_info.src_port = None;
    packet_info.dst_port = None;
    packet_info.ip_protocol = Some(IpNextLevelProtocol::Icmp);
    packet_info.payload = vec![0; 0];

    // Send ICMP Echo Request packets to 1.1.1.1
    match socket.send(packet_info) {
        Ok(packet_len) => {
            println!("Sent {} bytes", packet_len);
        }
        Err(e) => {
            println!("Error: {}", e);
        }
    }

    // Receive packets
    println!("Waiting for ICMP Echo Reply... ");
    loop {
        match socket.receive() {
            Ok(packet) => {
                let ethernet_packet = cross_socket::packet::ethernet::EthernetPacket::from_bytes(&packet);
                if ethernet_packet.ethertype != EtherType::Ipv4 {
                    continue;
                }
                let ip_packet = cross_socket::packet::ipv4::Ipv4Packet::from_bytes(&ethernet_packet.payload);
                if ip_packet.next_level_protocol != IpNextLevelProtocol::Icmp || ip_packet.source != std::net::Ipv4Addr::new(1, 1, 1, 1) {
                    continue;
                }
                println!("Received {} bytes from {}", packet.len(), ip_packet.source);
                let icmp_packet = cross_socket::packet::icmp::IcmpPacket::from_bytes(&ip_packet.payload);
                println!("Packet: {:?}", icmp_packet);
                break;
            }
            Err(e) => {
                println!("Error: {}", e);
            }
        }
    }
    
}

examples/datalink_socket/udp_ping.rs (line 49)

fn main() {
    let interface: Interface = cross_socket::interface::get_default_interface().unwrap();
    // Create new socket
    let mut socket: DataLinkSocket = DataLinkSocket::new(interface, false).unwrap();
    // Create packet info
    let mut packet_info = PacketInfo::new();
    packet_info.src_mac = socket.interface.mac_addr.clone().unwrap();
    packet_info.dst_mac = socket.interface.gateway.clone().unwrap().mac_addr;
    packet_info.ether_type = EtherType::Ipv4;
    packet_info.src_ip = IpAddr::V4(socket.interface.ipv4[0].addr);
    packet_info.dst_ip = IpAddr::V4(std::net::Ipv4Addr::new(1, 1, 1, 1));
    packet_info.src_port = Some(53443);
    packet_info.dst_port = Some(33435);
    packet_info.ip_protocol = Some(IpNextLevelProtocol::Udp);
    packet_info.payload = vec![0; 0];

    // Send UDP packets to 1.1.1.1:33435
    match socket.send(packet_info) {
        Ok(packet_len) => {
            println!("Sent {} bytes", packet_len);
        }
        Err(e) => {
            println!("Error: {}", e);
        }
    }

    // Receive packets
    println!("Waiting for ICMP Destination (Port) Unreachable...");
    loop {
        match socket.receive() {
            Ok(packet) => {
                let ethernet_packet = cross_socket::packet::ethernet::EthernetPacket::from_bytes(&packet);
                if ethernet_packet.ethertype != EtherType::Ipv4 {
                    continue;
                }
                let ip_packet = cross_socket::packet::ipv4::Ipv4Packet::from_bytes(&ethernet_packet.payload);
                if ip_packet.next_level_protocol != IpNextLevelProtocol::Icmp || ip_packet.source != std::net::Ipv4Addr::new(1, 1, 1, 1) {
                    continue;
                }
                println!("Received {} bytes from {}", packet.len(), ip_packet.source);
                let icmp_packet = cross_socket::packet::icmp::IcmpPacket::from_bytes(&ip_packet.payload);
                println!("Packet: {:?}", icmp_packet);
                break;
            }
            Err(e) => {
                println!("Error: {}", e);
            }
        }
    }
    
}

examples/socket/udp.rs (line 62)

fn main() {
    let interface: Interface = cross_socket::interface::get_default_interface().unwrap();
    let src_ip: IpAddr = IpAddr::V4(interface.ipv4[0].addr);
    let src_socket_addr: SocketAddr = SocketAddr::new(src_ip, 0);
    let dst_ip: IpAddr = IpAddr::V4(Ipv4Addr::new(1, 1, 1, 1));
    let dst_socket_addr: SocketAddr = SocketAddr::new(dst_ip, 33435);
    let socket_option = SocketOption {
        ip_version: IpVersion::V4,
        socket_type: SocketType::Dgram,
        protocol: Some(IpNextLevelProtocol::Udp),
        timeout: None,
        ttl: None,
        non_blocking: false,
    };
    // Sender socket
    let socket: Socket = Socket::new(socket_option).unwrap();

    // Receiver socket
    let listener_socket: ListenerSocket = ListenerSocket::new(src_socket_addr, IpVersion::V4, None, Some(Duration::from_millis(1000))).unwrap();

    // Create packet info
    let mut packet_info = PacketInfo::new();
    packet_info.src_ip = src_ip;
    packet_info.dst_ip = dst_socket_addr.ip();
    packet_info.src_port = Some(53443);
    packet_info.dst_port = Some(dst_socket_addr.port());
    packet_info.ip_protocol = Some(IpNextLevelProtocol::Udp);
    packet_info.payload = vec![0; 0];

    // Build UDP packet
    let udp_packet = cross_socket::packet::builder::build_udp_packet(packet_info);

    // Send UDP packets to 1.1.1.1:33435
    match socket.send_to(&udp_packet, dst_socket_addr) {
        Ok(packet_len) => {
            println!("Sent {} bytes", packet_len);
        }
        Err(e) => {
            println!("Error: {}", e);
        }
    }

    // Receive ICMP Port Unreachable packets
    println!("Waiting for ICMP Destination (Port) Unreachable...");
    let mut buf = vec![0; 512];
    loop {
        match listener_socket.receive_from(&mut buf){
            Ok((packet_len, _)) => {
                let ip_packet = cross_socket::packet::ipv4::Ipv4Packet::from_bytes(&buf[..packet_len]);
                if ip_packet.next_level_protocol != IpNextLevelProtocol::Icmp || ip_packet.source != std::net::Ipv4Addr::new(1, 1, 1, 1) {
                    continue;
                }
                println!("Received {} bytes from {}", packet_len, ip_packet.source);
                let icmp_packet = cross_socket::packet::icmp::IcmpPacket::from_bytes(&ip_packet.payload);
                println!("Packet: {:?}", icmp_packet);
                break;
            }
            Err(e) => {
                println!("Error: {}", e);
            }
        }
    }
}

Trait Implementations

impl Clone for IcmpPacket

fn clone(&self) -> IcmpPacket

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for IcmpPacket

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

Formats the value using the given formatter.

impl PartialEq<IcmpPacket> for IcmpPacket

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for IcmpPacket