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name = "windows_x86_64_gnullvm"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "windows_x86_64_msvc"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "zerocopy"
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
dependencies = [
"byteorder",
"zerocopy-derive",
]
[[package]]
name = "zerocopy-derive"
version = "0.7.35"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.72",
]

9
Cargo.toml Normal file
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[package]
name = "dhcpv6stateless"
version = "0.1.0"
edition = "2021"
[dependencies]
dhcproto = "0.12.0"
hex = "0.4.3"
tokio = { version = "1.39.3", features = ["macros", "net", "rt-multi-thread"] }

8
README.md Normal file
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# dhcpv6stateless
This -thing- is doing a DHCPv6 INFORMATION-REQUEST, waits for a response and displays it.
## References
- <https://datatracker.ietf.org/doc/html/rfc8415#section-6.1>
- <https://datatracker.ietf.org/doc/html/rfc8415#section-5.1>

50
src/main.rs Normal file
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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());
}