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DHCPOFFER works

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Arkitu 2025-04-23 10:18:44 +02:00
parent a6ef2702a3
commit 6f5ebbd752
1 changed files with 20 additions and 20 deletions
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40
src/main.rs
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@ -7,7 +7,7 @@
use core::net::Ipv4Addr; use core::net::Ipv4Addr;
use core::slice; use core::slice;
use cyw43_pio::{DEFAULT_CLOCK_DIVIDER, PioSpi}; use cyw43_pio::{DEFAULT_CLOCK_DIVIDER, PioSpi};
use dhcparse::dhcpv4::{DhcpOption, Encode as _, MessageType, OpCode}; use dhcparse::dhcpv4::{DhcpOption, Encode as _};
use dhcparse::{dhcpv4, v4_options}; use dhcparse::{dhcpv4, v4_options};
use embassy_executor::Spawner; use embassy_executor::Spawner;
use embassy_net::udp::{PacketMetadata, UdpMetadata, UdpSocket}; use embassy_net::udp::{PacketMetadata, UdpMetadata, UdpSocket};
@ -241,36 +241,36 @@ async fn main(spawner: Spawner) {
info!("{}", res_buf.len()); info!("{}", res_buf.len());
Timer::after_secs(0).await; Timer::after_secs(0).await;
let mut res_opts = Vec::<DhcpOption, 255>::new(); // let mut res_opts = Vec::<DhcpOption, 255>::new();
for o in unwrap(v4_options!(msg; ParameterRequestList)) for o in unwrap(v4_options!(msg; ParameterRequestList))
.await .await
.unwrap_or(&[]) .unwrap_or(&[])
{ {
let opt = match o { let (opt_len, opt): (u8, &[u8]) = match o {
1 => DhcpOption::SubnetMask(&dhcpv4::Addr([255, 255, 255, 0])), 1 => (4, &[255, 255, 255, 0]), // DhcpOption::SubnetMask(&dhcpv4::Addr([255, 255, 255, 0])),
2 => DhcpOption::TimeOffset(3600), 2 => (4, &3600_i32.to_be_bytes()), // DhcpOption::TimeOffset(3600),
3 => DhcpOption::Router(&[dhcpv4::Addr([192, 254, 0, 2])]), 3 => (4, &[192, 254, 0, 2]), // DhcpOption::Router(&[dhcpv4::Addr([192, 254, 0, 2])]),
6 => DhcpOption::DomainNameServer(&[dhcpv4::Addr([0, 0, 0, 0])]), 6 => (4, &[0, 0, 0, 0]), // DhcpOption::DomainNameServer(&[dhcpv4::Addr([0, 0, 0, 0])]),
12 => DhcpOption::HostName(b"blue"), 12 => (4, b"blue"), // DhcpOption::HostName(b"blue"),
15 => DhcpOption::DomainName(b"LocalDomain"), 15 => (11, b"LocalDomain"), // DhcpOption::DomainName(b"LocalDomain"),
26 => DhcpOption::Unknown(26, &[0x5, 0xEA]), // mtu 26 => (2, &1514_u16.to_be_bytes()), // DhcpOption::Unknown(26, &[0x5, 0xEA]), // mtu
28 => DhcpOption::Unknown(28, &[192, 254, 0, 255]), // broadcast 28 => (4, &[192, 254, 0, 255]), // DhcpOption::Unknown(28, &[192, 254, 0, 255]), // broadcast
51 => DhcpOption::AddressLeaseTime(700), 51 => (4, &700_u32.to_be_bytes()), // DhcpOption::AddressLeaseTime(700),
54 => DhcpOption::ServerIdentifier(&dhcpv4::Addr([192, 254, 0, 2])), 54 => (4, &[192, 254, 0, 2]), // DhcpOption::ServerIdentifier(&dhcpv4::Addr([192, 254, 0, 2])),
58 => DhcpOption::Unknown(58, &[0, 0, 0x1, 0xF4]), // renewal time = 500s 58 => (4, &500_u32.to_be_bytes()), // DhcpOption::Unknown(58, &[0, 0, 0x1, 0xF4]), // renewal time = 500s
59 => DhcpOption::Unknown(59, &[0, 0, 0x2, 0x58]), // rebinding time = 600s 59 => (4, &600_u32.to_be_bytes()), // DhcpOption::Unknown(59, &[0, 0, 0x2, 0x58]), // rebinding time = 600s
_ => { _ => {
info!("Unhandled requested option : {}", o); info!("Unhandled requested option : {}", o);
Timer::after_secs(0).await; Timer::after_secs(0).await;
continue; continue;
} }
}; };
res_buf.push(o).unwrap(); res_buf.push(*o).unwrap();
match opt { res_buf.push(opt_len).unwrap();
res_buf.extend_from_slice(opt).unwrap();
}
} }
unwrap(res_opts.push(DhcpOption::End)).await; res_buf.push(255).unwrap(); // end option
// unwrap(res_opts.push(DhcpOption::End)).await;
// res_buf.clear(); // res_buf.clear();
// unwrap( // unwrap(