116 lines
3.2 KiB
Rust
116 lines
3.2 KiB
Rust
/*
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# Setup
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modprobe mac802154_hwsim
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ip link set wpan0 down
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iwpan dev wpan0 set pan_id 0xbeef
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ip link add link wpan0 name lowpan0 type lowpan
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ip link set wpan0 up
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ip link set lowpan0 up
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iwpan dev wpan1 del
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iwpan phy phy1 interface add monitor%d type monitor
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# Running
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sudo ./target/debug/examples/sixlowpan
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# Teardown
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rmmod mac802154_hwsim
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*/
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mod utils;
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use log::debug;
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use std::collections::BTreeMap;
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use std::os::unix::io::AsRawFd;
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use std::str;
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use smoltcp::iface::{InterfaceBuilder, NeighborCache};
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use smoltcp::phy::{wait as phy_wait, Medium, RawSocket};
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use smoltcp::socket::SocketSet;
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use smoltcp::socket::{UdpPacketMetadata, UdpSocket, UdpSocketBuffer};
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use smoltcp::time::Instant;
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use smoltcp::wire::{IpAddress, IpCidr};
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fn main() {
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utils::setup_logging("");
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let (mut opts, mut free) = utils::create_options();
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utils::add_middleware_options(&mut opts, &mut free);
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let mut matches = utils::parse_options(&opts, free);
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let device = RawSocket::new("monitor0", Medium::Ieee802154).unwrap();
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let fd = device.as_raw_fd();
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let device = utils::parse_middleware_options(&mut matches, device, /*loopback=*/ false);
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let neighbor_cache = NeighborCache::new(BTreeMap::new());
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let udp_rx_buffer = UdpSocketBuffer::new(vec![UdpPacketMetadata::EMPTY], vec![0; 64]);
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let udp_tx_buffer = UdpSocketBuffer::new(vec![UdpPacketMetadata::EMPTY], vec![0; 128]);
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let udp_socket = UdpSocket::new(udp_rx_buffer, udp_tx_buffer);
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let ieee802154_addr = smoltcp::wire::Ieee802154Address::Extended([
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0x1a, 0x0b, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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]);
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let ip_addrs = [IpCidr::new(
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IpAddress::v6(0xfe80, 0, 0, 0, 0x180b, 0x4242, 0x4242, 0x4242),
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64,
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)];
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let mut builder = InterfaceBuilder::new(device).ip_addrs(ip_addrs);
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builder = builder
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.hardware_addr(ieee802154_addr.into())
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.neighbor_cache(neighbor_cache);
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let mut iface = builder.finalize();
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let mut sockets = SocketSet::new(vec![]);
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let udp_handle = sockets.add(udp_socket);
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loop {
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let timestamp = Instant::now();
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match iface.poll(&mut sockets, timestamp) {
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Ok(_) => {}
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Err(e) => {
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debug!("poll error: {}", e);
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}
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}
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// udp:6969: respond "hello"
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{
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let mut socket = sockets.get::<UdpSocket>(udp_handle);
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if !socket.is_open() {
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socket.bind(6969).unwrap()
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}
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let client = match socket.recv() {
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Ok((data, endpoint)) => {
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debug!(
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"udp:6969 recv data: {:?} from {}",
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str::from_utf8(data).unwrap(),
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endpoint
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);
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Some(endpoint)
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}
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Err(_) => None,
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};
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if let Some(endpoint) = client {
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let data = b"hello\n";
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debug!(
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"udp:6969 send data: {:?}",
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str::from_utf8(data.as_ref()).unwrap()
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);
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socket.send_slice(data, endpoint).unwrap();
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}
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}
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phy_wait(fd, iface.poll_delay(&sockets, timestamp)).expect("wait error");
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}
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}
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