save state

2c3f7f20 · Nawasan Wisitsingkhon · 9de005e8 · 2c3f7f20 · 2c3f7f20 · 2c3f7f20
Commit 2c3f7f20 authored Apr 16, 2024 by Nawasan Wisitsingkhon
21 changed files
--- a/.gitignore
+++ b/.gitignore
 /target
--- a/Cargo.toml
+++ b/Cargo.toml
 [package]
 name = "tenjin"
 version = "0.1.0"
 edition = "2021"
 [lib]
 name = "tenjin"
 path = "src/lib.rs"
 [[bin]]
 name = "tenjin"
 path = "src/main.rs"
 [dependencies]
 byteorder = "1.0.0"
\ No newline at end of file
--- a/LICENSE
+++ b/LICENSE
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--- a/README.md
+++ b/README.md
 # Tenjin SDN 
 ## Goals
 To understand  The software-defined networking well, I trying to create a simple SDN with Rust language  to support Openflow 1.0 first and 1.3 later.
 ## TODOs
 - [ ] design structure of code and working.
 - [ ] write more description in README.
\ No newline at end of file
--- a/src/etherparser/ether_type.rs
+++ b/src/etherparser/ether_type.rs
+pub enum EtherType {
+    IP = 0x0800,
+    ARP = 0x0806,
+    TEB = 0x6558,
+    VLAN = 0x8100,
+    IPV6 = 0x86dd,
+    SLOW = 0x8809,
+    MPLS = 0x8847,
+    SVLAN = 0x88a8,
+    LLDP = 0x88cc,
+    PBB = 0x88e7,
+    IEEE802_3 = 0x05dc,
+    CFM = 0x8902,
+    NSH = 0x894f,
+}
--- a/src/etherparser/ethernet.rs
+++ b/src/etherparser/ethernet.rs
+use crate::etherparser::ether_type::EtherType;
+use std::io::{BufRead, Cursor};
+use byteorder::{BigEndian, ReadBytesExt};
+use super::packet::IP;
+struct EthernetFrame {
+    mac_des: u64,
+    mac_src: u64,
+    vlan: Option<u16>,
+    vlan_pcp: u8,
+    valn_dei: bool,
+    vlan_vid: u16,
+}
+impl EthernetFrame {
+    fn parse(payload: &Vec<u8>) {
+        let mut bytes = Cursor::new(*payload);
+        let mut mac_des = vec![0u8; 6];
+        let mut mac_src = vec![0u8; 6];
+        for i in 0..6 {
+            mac_des[i] = bytes.read_u8().unwrap();
+        }
+        for i in 0..6 {
+            mac_src[i] = bytes.read_u8().unwrap();
+        }
+        // check 802.1q tag tpid
+        let typ = bytes.read_u16::<BigEndian>().unwrap();
+        let (pcp, dei, vid, typ) = match typ {
+            tp if tp == EtherType::VLAN as u16 => {
+                let tci = bytes.read_u16::<BigEndian>().unwrap();
+                let pcp = tci >> 13;
+                let dei = (tci & 0x1000) > 0;
+                let vid = tci & 0xfff;
+                (pcp as u8, dei, Some(vid), typ)
+            }
+            _ => (0x0, false, None, typ),
+        };
+        let ip_header = match typ {
+            tp if tp == EtherType::IP as u16 => {
+                let ip = IP::parse(&mut bytes);
+                if ip.is_some() {
+                    Network::IP(ip.unwrap())
+                } else {
+                    Network::Unparsable(typ, bytes.fill_buf().unwrap().to_vec())
+                }
+            }
+            // tp if tp == (EtherType::ARP as u16) => {
+            // }
+            _ => Network::Unparsable(typ, bytes.fill_buf().unwrap().to_vec()),
+        };
+    }
+}
+pub enum Network {
+    IP(IP),
+    Unparsable(u16, Vec<u8>),
+}
--- a/src/etherparser/mod.rs
+++ b/src/etherparser/mod.rs
+pub mod ether_type;
+pub mod ethernet;
+pub mod packet;
+pub mod tools;
\ No newline at end of file
--- a/src/etherparser/packet/arp.rs
+++ b/src/etherparser/packet/arp.rs
--- a/src/etherparser/packet/icmp.rs
+++ b/src/etherparser/packet/icmp.rs
+use std::io::{BufRead, Cursor};
+use byteorder::{BigEndian, ReadBytesExt};
+pub struct ICMP {
+    pub typ: u8,
+    pub code: u8,
+    pub checksum: u16,
+    pub payload: Vec<u8>,
+}
+impl ICMP {
+    pub fn size_of() -> usize {
+        4
+    }
+    pub fn parse(bytes: &mut Cursor<Vec<u8>>) -> Option<ICMP> {
+        if bytes.get_ref().len() < 4 {
+            return None;
+        }
+        let typ = bytes.read_u8().unwrap();
+        let code = bytes.read_u8().unwrap();
+        let checksum = bytes.read_u16::<BigEndian>().unwrap();
+        let payload = bytes.fill_buf().unwrap().to_vec();
+        Some(ICMP {
+            typ,
+            code,
+            checksum,
+            payload,
+        })
+    }
+}
--- a/src/etherparser/packet/ipv4.rs
+++ b/src/etherparser/packet/ipv4.rs
+use super::{tcp::TCP, udp::UDP, ICMP};
+use byteorder::{BigEndian, ReadBytesExt};
+use std::io::{BufRead, Cursor, Read};
+struct Flags {
+    dont_flagment: bool,
+    more_fragments: bool,
+}
+pub struct IP {
+    pub version: u8,
+    pub ihl: u8,
+    pub tos: u8,
+    pub length: u16,
+    pub ident: u16,
+    pub flags: Flags,
+    pub fragment: u16,
+    pub ttl: u8,
+    pub protocol: u8,
+    pub checksum: u16,
+    pub src: u32,
+    pub des: u32,
+    pub options: Vec<u8>,
+}
+pub enum IpProtocol {
+    ICMP = 0x01,
+    TCP = 0x06,
+    UDP = 0x11,
+}
+impl IP {
+    pub fn parse(bytes: &mut Cursor<Vec<u8>>) -> Option<IP> {
+        if bytes.get_ref().len() < 20 {
+            return None;
+        }
+        let version_ihl = bytes.read_u8().unwrap();
+        let version = version_ihl >> 4;
+        if version != 4 {
+            return None;
+        }
+        let ihl = version_ihl & 0x0f;
+        let tos = bytes.read_u8().unwrap();
+        let length = bytes.read_u16::<BigEndian>().unwrap();
+        let ident = bytes.read_u16::<BigEndian>().unwrap();
+        let fragment = bytes.read_u16::<BigEndian>().unwrap();
+        let flags = Flags {
+            dont_flagment: (fragment & 0x8000) > 0,
+            more_fragments: (fragment >> 0x4000) > 0,
+        };
+        let ttl = bytes.read_u8().unwrap();
+        let protocol = bytes.read_u8().unwrap();
+        let checksum = bytes.read_u16::<BigEndian>().unwrap();
+        let src = bytes.read_u32::<BigEndian>().unwrap();
+        let des = bytes.read_u32::<BigEndian>().unwrap();
+        let option_len = (ihl * 4) as usize - 20;
+        let mut options = vec![0u8; option_len];
+        bytes.read_exact(&mut options).unwrap();
+        let ptcol = match protocol {
+            ptc if ptc == (IpProtocol::ICMP as u8) => {
+                let icmp = ICMP::parse(bytes);
+                match icmp {
+                    Some(v) => EtherData::ICMP(v),
+                    None => EtherData::Unparse(protocol, bytes.fill_buf().unwrap().to_vec()),
+                }
+            }
+            ptc if ptc == (IpProtocol::TCP as u8) => {
+                let tcp = TCP::parser(bytes);
+                if tcp.is_some() {
+                    EtherData::TCP(tcp.unwrap())
+                } else {
+                    EtherData::Unparse(protocol, bytes.fill_buf().unwrap().to_vec())
+                }
+            }
+            ptc if ptc == (IpProtocol::UDP as u8) => {
+                let udp = UDP::parser(bytes);
+                if udp.is_some() {
+                    EtherData::UDP(udp.unwrap())
+                } else {
+                    EtherData::Unparse(protocol, bytes.fill_buf().unwrap().to_vec())
+                }
+            }
+            _ => EtherData::Unparse(protocol, bytes.fill_buf().unwrap().to_vec()),
+        };
+        Some(IP {
+            version,
+            ihl,
+            length,
+            protocol,
+            tos,
+            ident,
+            flags,
+            fragment,
+            ttl,
+            checksum,
+            src,
+            des,
+            options,
+        })
+    }
+}
+pub enum EtherData {
+    ICMP(ICMP),
+    TCP(TCP),
+    UDP(UDP),
+    Unparse(u8, Vec<u8>),
+}
--- a/src/etherparser/packet/mod.rs
+++ b/src/etherparser/packet/mod.rs
+pub mod icmp;
+pub use icmp::ICMP;
+pub mod tcp;
+pub use tcp::TCP;
+pub mod udp;
+pub mod ipv4;
+pub use ipv4::{IP, EtherData, IpProtocol};
\ No newline at end of file
--- a/src/etherparser/packet/tcp.rs
+++ b/src/etherparser/packet/tcp.rs
+use crate::etherparser::tools::bits::bit_bool;
+use byteorder::{BigEndian, ReadBytesExt};
+use std::io::{BufRead, Cursor};
+pub struct TCP {
+    pub src_port: u16,
+    pub des_port: u16,
+    pub seq: u32,
+    pub ack: u32,
+    pub offset: u8,
+    pub flags: TcpFlags,
+    pub window: u16,
+    pub checksum: u16,
+    pub urgent: u16,
+    pub payload: Vec<u8>,
+}
+impl TCP {
+    pub fn size_of() -> usize {
+        20
+    }
+    pub fn parser(bytes: &mut Cursor<Vec<u8>>) -> Option<TCP> {
+        if bytes.get_ref().len() < TCP::size_of() {
+            return None;
+        }
+        let src_port = bytes.read_u16::<BigEndian>().unwrap();
+        let des_port = bytes.read_u16::<BigEndian>().unwrap();
+        let seq = bytes.read_u32::<BigEndian>().unwrap();
+        let ack = bytes.read_u32::<BigEndian>().unwrap();
+        let dataoff_reserv_flags = bytes.read_u16::<BigEndian>().unwrap();
+        let flags = TcpFlags::parser(dataoff_reserv_flags);
+        let offset = (dataoff_reserv_flags >> 12) as u8 & 0x0f;
+        let window = bytes.read_u16::<BigEndian>().unwrap();
+        let checksum = bytes.read_u16::<BigEndian>().unwrap();
+        let urgent = bytes.read_u16::<BigEndian>().unwrap();
+        let payload = bytes.fill_buf().unwrap().to_vec();
+        Some(TCP {
+            src_port,
+            des_port,
+            seq,
+            ack,
+            offset,
+            flags,
+            window,
+            checksum,
+            urgent,
+            payload,
+        })
+    }
+}
+pub struct TcpFlags {
+    pub ns: bool,
+    pub cwr: bool,
+    pub ece: bool,
+    pub urg: bool,
+    pub ack: bool,
+    pub psh: bool,
+    pub rst: bool,
+    pub syn: bool,
+    pub fin: bool,
+}
+impl TcpFlags {
+    pub fn parser(bytes: u16) -> TcpFlags {
+        TcpFlags {
+            ns: bit_bool(0, bytes),
+            cwr: bit_bool(1, bytes),
+            ece: bit_bool(2, bytes),
+            urg: bit_bool(3, bytes),
+            ack: bit_bool(4, bytes),
+            psh: bit_bool(5, bytes),
+            rst: bit_bool(6, bytes),
+            syn: bit_bool(7, bytes),
+            fin: bit_bool(8, bytes),
+        }
+    }
+}
--- a/src/etherparser/packet/udp.rs
+++ b/src/etherparser/packet/udp.rs
+use std::io::{BufRead, Cursor};
+use byteorder::{BigEndian, ReadBytesExt};
+pub struct UDP {
+    pub src_port: u16,
+    pub des_port: u16,
+    pub checksum: u16,
+    pub payload: Vec<u8>,
+}
+impl UDP {
+    pub fn sizeof() -> usize {
+        8
+    }
+    pub fn parser(bytes: &mut Cursor<Vec<u8>>) -> Option<UDP> {
+        if bytes.get_ref().len() < UDP::sizeof() {
+            return None;
+        }
+        let src_port = bytes.read_u16::<BigEndian>().unwrap();
+        let des_port = bytes.read_u16::<BigEndian>().unwrap();
+        let checksum = bytes.read_u16::<BigEndian>().unwrap();
+        let payload = bytes.fill_buf().unwrap().to_vec();
+        Some(UDP {
+            src_port,
+            des_port,
+            checksum,
+            payload,
+        })
+    }
+}
--- a/src/etherparser/tools/bits.rs
+++ b/src/etherparser/tools/bits.rs
+pub fn bit_bool(position: u16, byte: u16) -> bool {
+    (byte >> position) & 1 == 1
+}
--- a/src/etherparser/tools/mod.rs
+++ b/src/etherparser/tools/mod.rs
+pub mod bits;
\ No newline at end of file
--- a/src/lib.rs
+++ b/src/lib.rs
 pub mod openflow;
\ No newline at end of file
+pub mod etherparser;
\ No newline at end of file
--- a/src/main.rs
+++ b/src/main.rs
 use tenjin::openflow::{Controller, Msg, OfpHeader};
 use std::io::Read;
 use std::net::TcpListener;
 extern crate byteorder;
 fn main() -> Result<(), std::io::Error> {
    let controller = Controller::new(Controller::OFP_1_0);
    let listener = TcpListener::bind(("127.0.0.1", 6633)).unwrap();
    let mut buf = vec![0u8; 8];
    for stream in listener.incoming() {
        println!("{:?}", stream);
        match stream {
            Ok(mut stream) => {
                // std::thread::spawn(move || {
                println!("=================== connection =======================");
                // after tcp is connected, it will send hello message
                controller.hello(&mut stream);
                // loop for receive data
                loop {
                    // first receive with Openflow header 64 bit to buf
                    match stream.read(&mut buf) {
                        Ok(v) if v > 0 => {
                            let packet = OfpHeader::parse(&buf);
                            // length_payload is var to receive payload if the packet has
                            // and assign size by length
                            let length_payload = packet.size();
                            let mut payload = vec![0u8; length_payload];
                            stream.read(&mut payload)?;
                            let message = Msg::parse(packet.message, &payload);
                            match message {
                                // 0 is Hello message
                                Msg::Hello => {
                                    // after get Hello, send fetureReq
                                    controller.feture_req(packet.xid, &mut stream);
                                    println!("Hello event");
                                }
                                Msg::PacketIn(b) => {
-                                    println!("PacketIn event");
+                                    controller.packetIn(xid, &payload, &mut stream);
-                                }
+                                    println!("PacketIn event");
-                                _ => {
+                                }
-                                    println!("others message");
+                                _ => {
-                                }
+                                    println!("others message");
-                            }
+                                }
-                        }
+                            }
-                        Ok(_) | Err(_) => break,
+                        }
-                    }
+                        Ok(_) | Err(_) => break,
-                }
+                    }
-                println!("======================================================");
+                }
+                println!("======================================================");
-                // });
-            }
+                // });
-            Err(_) => {
+            }
-                // connection failed
+            Err(_) => {
-                panic!("Connection failed")
+                // connection failed
-            }
+                panic!("Connection failed")
-        }
+            }
-    }
+        }
-    Ok(())
+    }
-}
+    Ok(())
+}
--- a/src/openflow/controller.rs
+++ b/src/openflow/controller.rs
 use std::{io::Write, mem::size_of, net::TcpStream};
 use byteorder::{BigEndian, WriteBytesExt};
+use etherparse::SlicedPacket;
-use super::OfpHeader;
+use super::OfpHeader;
-pub struct Controller {
-    version: u8,
+pub struct Controller {
-}
+    version: u8,
+}
-impl Controller {
-    pub const OFP_1_0: u8 = 1;
+impl Controller {
-    pub fn new(version: u8) -> Self {
+    pub const OFP_1_0: u8 = 1;
-        Self { version }
+    pub fn new(version: u8) -> Self {
-    }
+        Self { version }
-    pub fn hello(&self, stream: &mut TcpStream) {
+    }
-        let header = OfpHeader::new(self.version, 0, size_of::<OfpHeader>() as u16, 0);
+    pub fn hello(&self, stream: &mut TcpStream) {
-        let mut bytes: Vec<u8> = Vec::new();
+        let header = OfpHeader::new(self.version, 0, size_of::<OfpHeader>() as u16, 0);
-        header.marshal(&mut bytes);
+        let mut bytes: Vec<u8> = Vec::new();
-        stream.write_all(&bytes).unwrap();
+        header.marshal(&mut bytes);
-    }
+        stream.write_all(&bytes).unwrap();
+    }
-    pub fn feture_req(&self, xid: u32, stream: &mut TcpStream) {
-        let header = OfpHeader::new(self.version, 5, 8, xid);
+    pub fn feture_req(&self, xid: u32, stream: &mut TcpStream) {
-        let mut bytes: Vec<u8> = Vec::new();
+        let header = OfpHeader::new(self.version, 5, 8, xid);
-        header.marshal(&mut bytes);
+        let mut bytes: Vec<u8> = Vec::new();
-        stream.write_all(&bytes).unwrap();
+        header.marshal(&mut bytes);
-    }
+        stream.write_all(&bytes).unwrap();
+    }
-    pub fn send(&self, xid: u32, message: u8, payload: &Vec<u8>, stream: &mut TcpStream) {
-        let length = size_of::<OfpHeader>() + payload.len();
+    pub fn packetIn(&self, xid: u32, payload: &Vec<u8>, stream: &mut TcpStream) {
-        let header = OfpHeader::new(self.version, message, length as u16, xid);
+        match SlicedPacket::from_ethernet(&payload) {
-        let mut bytes: Vec<u8> = Vec::new();
+            Ok(value) => {
+                println!("vlan {:?}", value.vlan);
-        header.marshal(&mut bytes);
+                println!("net {:?}", value.net);
+            }, 
-        stream.write_all(&bytes).unwrap();
+            Err(_) => println!("Error"),
-    }
+        }
-}
+    }
+    pub fn send(&self, xid: u32, message: u8, payload: &Vec<u8>, stream: &mut TcpStream) {
+        let length = size_of::<OfpHeader>() + payload.len();
+        let header = OfpHeader::new(self.version, message, length as u16, xid);
+        let mut bytes: Vec<u8> = Vec::new();
+        header.marshal(&mut bytes);
+        stream.write_all(&bytes).unwrap();
+    }
+}
--- a/src/openflow/header.rs
+++ b/src/openflow/header.rs
 use std::{io::Cursor, mem::size_of};
 use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
 pub struct OfpHeader {
    pub version: u8,
    pub message: u8,
    pub length: u16,
    pub xid: u32,
 }
 impl OfpHeader {
    pub fn size(&self) -> usize {
        return self.length as usize - size_of::<OfpHeader>();
    }
    pub fn new(version: u8, message: u8, length: u16, xid: u32) -> Self {
        Self {
            version,
            message,
            length,
            xid,
        }
    }
    pub fn parse(buf: &Vec<u8>) -> Self {
        let mut buf_cursor = Cursor::new(buf);
        // split data from header
        let version = buf_cursor.read_u8().unwrap();
        let message = buf_cursor.read_u8().unwrap();
        // size is size of packet
        let length = buf_cursor.read_u16::<BigEndian>().unwrap();
        let xid = buf_cursor.read_u32::<BigEndian>().unwrap();
        Self {
            version,
            message,
            length,
            xid,
        }
    }
    pub fn marshal(&self, bytes: &mut Vec<u8>) {
        bytes.write_u8(self.version).unwrap();
        bytes.write_u8(self.message).unwrap();
        bytes.write_u16::<BigEndian>(self.length).unwrap();
        bytes.write_u32::<BigEndian>(self.xid).unwrap();
    }
 }
--- a/src/openflow/message.rs
+++ b/src/openflow/message.rs
 pub enum Msg {
    Hello,
    PacketIn(Vec<u8>),
    NotFound,
 }
 impl Msg {
    pub fn parse(message_code: u8, payload: &Vec<u8>) -> Self {
        match message_code {
            0 => Msg::Hello,
            8 => Msg::PacketIn(payload.clone()),
            _ => Msg::NotFound,
        }
    }
 }
--- a/src/openflow/mod.rs
+++ b/src/openflow/mod.rs
 pub mod header;
 pub use header::OfpHeader;
 pub mod message;
 pub use message::Msg;
 pub mod controller;
 pub use controller::Controller;