Init repo

src/main.rs

@@ -0,0 +1,50 @@
+use dhcproto::{
+    Encodable,
+    Encoder,
+    v6::{
+        DhcpOption,
+        Message,
+        MessageType,
+        OptionCode,
+        ORO,
+    },
+};
+use std::net::SocketAddrV6;
+use tokio::net::UdpSocket;
+
+const scope_id: u32 = 15;
+const duid: [u8; 4] = [0x13, 0x37, 0x23, 0x42];
+
+const All_DHCP_Relay_Agents_and_Servers: &str = "ff02::1:2";
+const DHCP_Client_port: u16 = 546;
+const DHCP_Relay_Agent_and_Server_port: u16 = 547;
+
+#[tokio::main]
+async fn main() {
+    let socket_addr = SocketAddrV6::new("::".parse().unwrap(), DHCP_Client_port, 0, scope_id);
+    let sock = UdpSocket::bind(socket_addr).await.unwrap();
+
+    let remote_addr = SocketAddrV6::new(All_DHCP_Relay_Agents_and_Servers.parse().unwrap(), DHCP_Relay_Agent_and_Server_port, 0, scope_id);
+
+    let mut msg = Message::new(MessageType::InformationRequest);
+    let mut msg_opts = msg.opts_mut();
+    //msg_opts.insert(DhcpOption::ClientId(Vec::from(duid)));
+    msg_opts.insert(DhcpOption::ElapsedTime(0));
+    msg_opts.insert(DhcpOption::ORO(ORO { opts: vec![
+        OptionCode::InfMaxRt,
+        OptionCode::InformationRefreshTime,
+        OptionCode::DomainNameServers,
+        OptionCode::DomainSearchList,
+    ],})); // request options
+
+    let mut msg_buf = Vec::new();
+    let mut msg_encoder = Encoder::new(&mut msg_buf);
+    msg.encode(&mut msg_encoder).unwrap(); // Serializes msg to msg_buf
+
+    sock.send_to(&msg_buf, remote_addr).await.unwrap();
+
+    let mut buf = [0; 1024];
+    let (len, recv_addr) = sock.recv_from(&mut buf).await.unwrap();
+    println!("{:?} bytes received from {:?}", len, recv_addr);
+    println!("{}", &buf[..len].escape_ascii().to_string());
+}