Function configure

tcp/src/dhcp.rs:17–55

DHCP configuration on given interface Based on

(interface: &mut Interface)

///
/// Based on <https://github.com/vinc/moros/blob/trunk/src/usr/dhcp.rs>
pub fn configure(interface: &mut Interface) {

    let dhcp_socket = Dhcpv4Socket::new();
    let dhcp_handle = interface.add_socket(dhcp_socket);

    if let Err(e) = interface.poll(Instant::from_millis(0)) { // This transmits
        panic!("[tcp] Network Error: {}", e);
    }

    loop {
        let event = interface.get_socket::<Dhcpv4Socket>(dhcp_handle).poll();
        match event {
            None => {}
            Some(Dhcpv4Event::Configured(config)) => {
                interface.remove_socket(dhcp_handle);

                print!("[tcp] DHCP: IP {}", config.address);
                set_ipv4_addr(interface, config.address);

                if let Some(router) = config.router {
                    print!(" Router {}", router);
                    interface.routes_mut().add_default_ipv4_route(router).unwrap();
                }

                for addr in config.dns_servers.iter()
                    .filter(|addr| addr.is_some()).map(|addr| addr.unwrap()) {
                        print!(" DNS {}", addr);
                        dns::add_server(IpAddress::from(addr));
                    }
                println!("");
                break;
            }
            Some(Dhcpv4Event::Deconfigured) => {
            }
        }
        // Wait and retry
        syscalls::thread_yield();
    }
}

/// Set the IPv4 address of an interface
///