Dhcp

Dhcp Server

The DhcpServer trait and DhcpAction is the interface between the cross compiled part and the logic.

pub enum DhcpAction {
    SendPacket {
        payload: [u8; 576],
        len: usize,
        remote: Ipv4Addr
    },
    Ignore,
}

pub trait DhcpServer {
    fn handle_message(
        &mut self,
        buffer: &[u8],
        time: u64,
    ) -> DhcpAction;
}

Simple Dhcp Server

SimpleDhcpServer is a minimal, single-client DHCP server implemented as a finite state machine. It supports the full DORA handshake (Discover → Offer → Request → Ack), lease renewal, release, and lease expiry. The address is dealt in a first come first serve manner.

Single client only. The server tracks one lease at a time. A second device cannot obtain an address until the existing lease expires or is released.