mirror of
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Basis working udp parsing
This commit is contained in:
commit
e06ab152de
8 changed files with 716 additions and 0 deletions
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
|
||||
|
||||
[[package]]
|
||||
name = "vcpkg"
|
||||
version = "0.2.15"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
|
||||
|
||||
[[package]]
|
||||
name = "wasi"
|
||||
version = "0.11.0+wasi-snapshot-preview1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
|
||||
|
||||
[[package]]
|
||||
name = "windows-sys"
|
||||
version = "0.48.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
|
||||
dependencies = [
|
||||
"windows-targets",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-targets"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm",
|
||||
"windows_aarch64_msvc",
|
||||
"windows_i686_gnu",
|
||||
"windows_i686_msvc",
|
||||
"windows_x86_64_gnu",
|
||||
"windows_x86_64_gnullvm",
|
||||
"windows_x86_64_msvc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
|
||||
|
||||
[[package]]
|
||||
name = "zeusns"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"diesel",
|
||||
"dotenvy",
|
||||
"tokio",
|
||||
]
|
||||
11
Cargo.toml
Normal file
11
Cargo.toml
Normal file
|
|
@ -0,0 +1,11 @@
|
|||
[package]
|
||||
name = "zeusns"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
|
||||
[dependencies]
|
||||
diesel = { version = "2.1.4", features = ["sqlite"] }
|
||||
dotenvy = "0.15"
|
||||
tokio = {version = "1.36.0", features = ["full"]}
|
||||
|
||||
0
src/cache.rs
Normal file
0
src/cache.rs
Normal file
187
src/main.rs
Normal file
187
src/main.rs
Normal file
|
|
@ -0,0 +1,187 @@
|
|||
use std::{error::Error, mem::size_of, net::SocketAddr};
|
||||
|
||||
use tokio::net::UdpSocket;
|
||||
|
||||
mod worker;
|
||||
|
||||
#[repr(u16)]
|
||||
#[derive(Debug)]
|
||||
enum Type {
|
||||
A = 1,
|
||||
}
|
||||
|
||||
#[repr(u16)]
|
||||
#[derive(Debug)]
|
||||
enum Class {
|
||||
IN = 1,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct Question {
|
||||
qname: Vec<String>, // TODO: not padded
|
||||
qtype: Type, // NOTE: should be QTYPE, right now not really needed
|
||||
qclass: Class,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct Header {
|
||||
id: u16,
|
||||
flags: u16, // |QR| Opcode |AA|TC|RD|RA| Z | RCODE | ; 1 | 4 | 1 | 1 | 1 | 1 | 3 | 4
|
||||
qdcount: u16,
|
||||
ancount: u16,
|
||||
nscount: u16,
|
||||
arcount: u16,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct Message {
|
||||
header: Option<Header>,
|
||||
question: Option<Question>,
|
||||
answer: Option<RR>,
|
||||
authority: Option<RR>,
|
||||
additional: Option<RR>,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct RR {
|
||||
name: String,
|
||||
t: u16,
|
||||
class: u16,
|
||||
ttl: u32,
|
||||
rdlength: u16,
|
||||
rdata: String,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct Response {
|
||||
field: Type,
|
||||
}
|
||||
|
||||
const MAX_DATAGRAM_SIZE: usize = 40_96;
|
||||
|
||||
impl TryFrom<u16> for Type {
|
||||
type Error = (); //TODO: user better error
|
||||
|
||||
fn try_from(value: u16) -> Result<Self, Self::Error> {
|
||||
match value {
|
||||
x if x == Type::A as u16 => Ok(Type::A),
|
||||
_ => Err(()),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl TryFrom<u16> for Class {
|
||||
type Error = (); //TODO: user better error
|
||||
|
||||
fn try_from(value: u16) -> Result<Self, Self::Error> {
|
||||
match value {
|
||||
x if x == Class::IN as u16 => Ok(Class::IN),
|
||||
_ => Err(()),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: use Error instead of Option
|
||||
trait FromBytes {
|
||||
fn from_bytes(bytes: &[u8]) -> Option<Self>
|
||||
where
|
||||
Self: Sized;
|
||||
}
|
||||
|
||||
impl FromBytes for Header {
|
||||
fn from_bytes(bytes: &[u8]) -> Option<Self> {
|
||||
if bytes.len() != size_of::<Header>() {
|
||||
return None; // Size of header should match
|
||||
}
|
||||
|
||||
Some(Header {
|
||||
id: u16::from_be_bytes(bytes[0..2].try_into().unwrap()),
|
||||
flags: u16::from_be_bytes(bytes[2..4].try_into().unwrap()),
|
||||
qdcount: u16::from_be_bytes(bytes[4..6].try_into().unwrap()),
|
||||
ancount: u16::from_be_bytes(bytes[6..8].try_into().unwrap()),
|
||||
nscount: u16::from_be_bytes(bytes[8..10].try_into().unwrap()),
|
||||
arcount: u16::from_be_bytes(bytes[10..12].try_into().unwrap()),
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
//HACK: lots of unsafe unwrap
|
||||
impl FromBytes for Question {
|
||||
fn from_bytes(bytes: &[u8]) -> Option<Self> {
|
||||
// 16 for length octet + zero length octet
|
||||
if bytes.len() < 2 + size_of::<Class>() + size_of::<Type>() {
|
||||
None
|
||||
} else {
|
||||
let mut qname = vec![];
|
||||
let mut i = 0;
|
||||
|
||||
// Parse qname labels
|
||||
while bytes[i] != 0 && bytes[i] as usize + i < bytes.len() {
|
||||
qname.push(
|
||||
String::from_utf8(bytes[i + 1..bytes[i] as usize + 1 + i].to_vec()).unwrap(),
|
||||
);
|
||||
i += bytes[i] as usize + 1;
|
||||
}
|
||||
i += 1;
|
||||
|
||||
if bytes.len() - i < size_of::<Class>() + size_of::<Type>() {
|
||||
None
|
||||
} else {
|
||||
//Try Parse qtype
|
||||
let qtype = Type::try_from(u16::from_be_bytes(bytes[i..i + 2].try_into().unwrap()))
|
||||
.unwrap();
|
||||
|
||||
//Try Parse qclass
|
||||
let qclass =
|
||||
Class::try_from(u16::from_be_bytes(bytes[i + 2..i + 4].try_into().unwrap()))
|
||||
.unwrap();
|
||||
|
||||
Some(Question {
|
||||
qname,
|
||||
qtype,
|
||||
qclass,
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl FromBytes for Message {
|
||||
fn from_bytes(bytes: &[u8]) -> Option<Self> {
|
||||
let header = Header::from_bytes(&bytes[0..12]);
|
||||
let question = Question::from_bytes(&bytes[12..]);
|
||||
if header.is_some() {
|
||||
Some(Message {
|
||||
header,
|
||||
question,
|
||||
answer: None,
|
||||
authority: None,
|
||||
additional: None,
|
||||
})
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
async fn create_query(message: Message) {
|
||||
println!("{:?}", message);
|
||||
}
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> Result<(), Box<dyn Error>> {
|
||||
let local_addr: SocketAddr = "127.0.0.1:8080".parse()?;
|
||||
|
||||
let socket = UdpSocket::bind(local_addr).await?;
|
||||
|
||||
let mut data = vec![0u8; MAX_DATAGRAM_SIZE];
|
||||
loop {
|
||||
let len = socket.recv(&mut data).await?;
|
||||
let message = Message::from_bytes(&data[..len]);
|
||||
if message.is_some() {
|
||||
tokio::spawn(async move {
|
||||
create_query(message.unwrap()).await;
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
0
src/queue.rs
Normal file
0
src/queue.rs
Normal file
0
src/resolver.rs
Normal file
0
src/resolver.rs
Normal file
19
src/worker.rs
Normal file
19
src/worker.rs
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
use std::collections::VecDeque;
|
||||
|
||||
use crate::Message;
|
||||
|
||||
struct Worker {
|
||||
queue: VecDeque<Message>
|
||||
}
|
||||
|
||||
impl Worker {
|
||||
pub fn new() -> Worker {
|
||||
Worker { queue: VecDeque::new() }
|
||||
}
|
||||
|
||||
pub fn append() {
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in a new issue