bec96c2954
- Introduce `bootstrap_load_balancer` module for handling initial load balancing configuration. - Add `bootstrap_dhcp` module for bootstrapping DHCP settings. - Create `harmony_types` crate to house shared types, including `MacAddress`. - Update `harmony_macros` to use `harmony_types` instead of directly referencing `harmony`.
79 lines
2.2 KiB
Rust
79 lines
2.2 KiB
Rust
extern crate proc_macro;
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use proc_macro::TokenStream;
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use quote::quote;
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use syn::{LitStr, parse_macro_input};
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#[proc_macro]
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pub fn ip(input: TokenStream) -> TokenStream {
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let input = parse_macro_input!(input as LitStr);
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let ip_str = input.value();
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if let Ok(_) = ip_str.parse::<std::net::Ipv4Addr>() {
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let expanded =
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quote! { std::net::IpAddr::V4(#ip_str.parse::<std::net::Ipv4Addr>().unwrap()) };
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return TokenStream::from(expanded);
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}
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if let Ok(_) = ip_str.parse::<std::net::Ipv6Addr>() {
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let expanded =
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quote! { std::net::IpAddr::V6(#ip_str.parse::<std::net::Ipv6Addr>().unwrap()) };
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return TokenStream::from(expanded);
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}
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panic!("Invalid IP address: {}", ip_str);
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}
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#[proc_macro]
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pub fn ipv4(input: TokenStream) -> TokenStream {
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let input = parse_macro_input!(input as LitStr);
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let ip_str = input.value();
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if let Ok(_) = ip_str.parse::<std::net::Ipv4Addr>() {
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let expanded = quote! { #ip_str.parse::<std::net::Ipv4Addr>().unwrap() };
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return TokenStream::from(expanded);
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}
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panic!("Invalid IPv4 address: {}", ip_str);
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}
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#[proc_macro]
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pub fn mac_address(input: TokenStream) -> TokenStream {
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let input = parse_macro_input!(input as LitStr);
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let mac_str = input.value();
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match parse_mac_address(&mac_str) {
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Ok(bytes) => {
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let b0 = bytes[0];
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let b1 = bytes[1];
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let b2 = bytes[2];
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let b3 = bytes[3];
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let b4 = bytes[4];
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let b5 = bytes[5];
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quote! {
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MacAddress( [#b0, #b1, #b2, #b3, #b4, #b5] )
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}
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.into()
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}
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Err(err) => syn::Error::new(input.span(), err).to_compile_error().into(),
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}
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}
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fn parse_mac_address(mac: &str) -> Result<[u8; 6], String> {
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let parts: Vec<&str> = mac.split(':').collect();
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if parts.len() != 6 {
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return Err("MAC address must contain exactly six octets separated by colons".to_string());
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}
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let mut bytes = [0u8; 6];
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for (i, part) in parts.iter().enumerate() {
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match u8::from_str_radix(part, 16) {
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Ok(byte) => bytes[i] = byte,
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Err(_) => return Err(format!("Invalid MAC address octet: {}", part)),
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}
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}
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Ok(bytes)
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}
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