mirror of https://github.com/dswd/vpncloud.git
Some benchmarks and low-hanging speed improvements
Dennis Schwerdel
parent
f6b6faf50a
commit
946e384660
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@ -20,3 +20,4 @@ gcc = "0.3"
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[features]
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default = []
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crypto = ["libsodium-sys"] #not default as it requires external library
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bench = []
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@ -0,0 +1,86 @@
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use test::Bencher;
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use time::{SteadyTime, Duration};
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use std::str::FromStr;
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use std::net::ToSocketAddrs;
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use super::udpmessage::{Options, Message, encode, decode};
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use super::crypto::Crypto;
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use super::ethernet::{Frame, SwitchTable};
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use super::types::{Address, Table, Protocol};
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use super::ip::Packet;
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#[bench]
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fn message_encode(b: &mut Bencher) {
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let mut options = Options::default();
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let mut crypto = Crypto::None;
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let payload = [0; 1400];
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let msg = Message::Data(&payload);
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let mut buf = [0; 1500];
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b.iter(|| {
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encode(&mut options, &msg, &mut buf[..], &mut crypto);
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});
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}
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#[bench]
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fn message_decode(b: &mut Bencher) {
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let mut options = Options::default();
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let mut crypto = Crypto::None;
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let payload = [0; 1400];
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let msg = Message::Data(&payload);
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let mut buf = [0; 1500];
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let size = encode(&mut options, &msg, &mut buf[..], &mut crypto);
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b.iter(|| {
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decode(&mut buf[..size], &mut crypto).unwrap();
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});
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}
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#[bench]
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fn switch_learn(b: &mut Bencher) {
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let mut table = SwitchTable::new(Duration::seconds(10));
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let addr = Address::from_str("12:34:56:78:90:ab").unwrap();
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let peer = "1.2.3.4:5678".to_socket_addrs().unwrap().next().unwrap();
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b.iter(|| {
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table.learn(addr.clone(), None, peer);
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})
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}
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#[bench]
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fn switch_lookup(b: &mut Bencher) {
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let mut table = SwitchTable::new(Duration::seconds(10));
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let addr = Address::from_str("12:34:56:78:90:ab").unwrap();
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let peer = "1.2.3.4:5678".to_socket_addrs().unwrap().next().unwrap();
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table.learn(addr.clone(), None, peer);
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b.iter(|| {
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table.lookup(&addr);
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})
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}
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#[bench]
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fn ethernet_parse(b: &mut Bencher) {
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let data = [0; 1500];
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b.iter(|| {
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Frame::parse(&data).unwrap()
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})
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}
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#[bench]
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fn ipv4_parse(b: &mut Bencher) {
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let mut data = [0; 1500];
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data[0] = 4*16;
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b.iter(|| {
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Packet::parse(&data).unwrap()
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})
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}
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#[bench]
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fn ipv6_parse(b: &mut Bencher) {
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let mut data = [0; 1500];
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data[0] = 6*16;
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b.iter(|| {
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Packet::parse(&data).unwrap()
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})
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}
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@ -225,7 +225,7 @@ impl<P: Protocol> GenericCloud<P> {
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return Err(Error::WrongNetwork(options.network_id));
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}
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}
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debug!("Recieved {:?} from {}", msg, peer);
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debug!("Received {:?} from {}", msg, peer);
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match msg {
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Message::Data(payload) => {
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let (src, _dst) = try!(P::parse(payload));
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@ -237,7 +237,7 @@ impl<P: Protocol> GenericCloud<P> {
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return Err(Error::TunTapDevError("Failed to write to device"));
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}
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}
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self.peers.add(&peer);
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// not adding peer to increase performance
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if self.learning {
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//learn single address
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self.table.learn(src, None, peer);
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@ -38,10 +38,12 @@ impl Device {
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&self.ifname
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}
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#[inline]
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pub fn read(&mut self, mut buffer: &mut [u8]) -> Result<usize, Error> {
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self.fd.read(&mut buffer).map_err(|_| Error::TunTapDevError("Read error"))
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}
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#[inline]
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pub fn write(&mut self, data: &[u8]) -> Result<(), Error> {
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match self.fd.write_all(&data) {
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Ok(_) => Ok(()),
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@ -51,6 +53,7 @@ impl Device {
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}
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impl AsRawFd for Device {
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#[inline(always)]
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fn as_raw_fd(&self) -> RawFd {
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self.fd.as_raw_fd()
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}
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@ -25,27 +25,23 @@ impl Protocol for Frame {
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if data.len() < pos + 2 {
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return Err(Error::ParseError("Vlan frame is too short"));
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}
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let mut src = Vec::with_capacity(8);
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let mut dst = Vec::with_capacity(8);
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let mut src = [0; 16];
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let mut dst = [0; 16];
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unsafe {
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src.set_len(8);
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ptr::copy_nonoverlapping(data[pos..].as_ptr(), src.as_mut_ptr(), 2);
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ptr::copy_nonoverlapping(src_data.as_ptr(), src[2..].as_mut_ptr(), 6);
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dst.set_len(8);
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ptr::copy_nonoverlapping(data[pos..].as_ptr(), dst.as_mut_ptr(), 2);
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ptr::copy_nonoverlapping(dst_data.as_ptr(), dst[2..].as_mut_ptr(), 6);
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}
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Ok((Address(src), Address(dst)))
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Ok((Address(src, 8), Address(dst, 8)))
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} else {
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let mut src = Vec::with_capacity(6);
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let mut dst = Vec::with_capacity(6);
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let mut src = [0; 16];
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let mut dst = [0; 16];
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unsafe {
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ptr::copy_nonoverlapping(src_data.as_ptr(), src.as_mut_ptr(), 6);
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src.set_len(6);
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ptr::copy_nonoverlapping(dst_data.as_ptr(), dst.as_mut_ptr(), 6);
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dst.set_len(6);
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}
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Ok((Address(src), Address(dst)))
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Ok((Address(src, 6), Address(dst, 6)))
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}
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}
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}
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@ -84,6 +80,7 @@ impl Table for SwitchTable {
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self.cache = None;
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}
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#[inline]
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fn learn(&mut self, key: Address, _prefix_len: Option<u8>, addr: SocketAddr) {
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let value = SwitchTableValue{address: addr, timeout: SteadyTime::now()+self.timeout};
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if self.table.insert(key.clone(), value).is_none() {
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@ -91,6 +88,7 @@ impl Table for SwitchTable {
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}
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}
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#[inline]
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fn lookup(&mut self, key: &Address) -> Option<SocketAddr> {
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match self.table.get(key) {
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Some(value) => Some(value.address),
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@ -108,14 +106,14 @@ impl Table for SwitchTable {
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fn without_vlan() {
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let data = [6,5,4,3,2,1,1,2,3,4,5,6,1,2,3,4,5,6,7,8];
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let (src, dst) = Frame::parse(&data).unwrap();
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assert_eq!(src, Address(vec![1,2,3,4,5,6]));
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assert_eq!(dst, Address(vec![6,5,4,3,2,1]));
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assert_eq!(src, Address([1,2,3,4,5,6,0,0,0,0,0,0,0,0,0,0], 6));
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assert_eq!(dst, Address([6,5,4,3,2,1,0,0,0,0,0,0,0,0,0,0], 6));
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}
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#[test]
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fn with_vlan() {
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let data = [6,5,4,3,2,1,1,2,3,4,5,6,0x81,0,4,210,1,2,3,4,5,6,7,8];
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let (src, dst) = Frame::parse(&data).unwrap();
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assert_eq!(src, Address(vec![4,210,1,2,3,4,5,6]));
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assert_eq!(dst, Address(vec![4,210,6,5,4,3,2,1]));
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assert_eq!(src, Address([4,210,1,2,3,4,5,6,0,0,0,0,0,0,0,0], 8));
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assert_eq!(dst, Address([4,210,6,5,4,3,2,1,0,0,0,0,0,0,0,0], 8));
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}
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26
src/ip.rs
26
src/ip.rs
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@ -1,9 +1,10 @@
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use std::net::SocketAddr;
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use std::collections::{hash_map, HashMap};
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use std::io::Read;
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use std::ptr;
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use super::types::{Protocol, Error, Table, Address};
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use super::util::to_vec;
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#[allow(dead_code)]
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pub struct Packet;
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@ -14,18 +15,28 @@ impl Protocol for Packet {
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return Err(Error::ParseError("Empty header"));
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}
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let version = data[0] >> 4;
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let mut src = [0; 16];
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let mut dst = [0; 16];
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match version {
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4 => {
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if data.len() < 20 {
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return Err(Error::ParseError("Truncated header"));
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}
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Ok((Address(to_vec(&data[12..16])), Address(to_vec(&data[16..20]))))
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unsafe {
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ptr::copy_nonoverlapping(data[12..].as_ptr(), src.as_mut_ptr(), 4);
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ptr::copy_nonoverlapping(data[16..].as_ptr(), dst.as_mut_ptr(), 4);
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}
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Ok((Address(src, 4), Address(dst, 4)))
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},
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6 => {
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if data.len() < 40 {
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return Err(Error::ParseError("Truncated header"));
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}
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Ok((Address(to_vec(&data[8..24])), Address(to_vec(&data[24..40]))))
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unsafe {
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ptr::copy_nonoverlapping(data[8..].as_ptr(), src.as_mut_ptr(), 16);
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ptr::copy_nonoverlapping(data[24..].as_ptr(), dst.as_mut_ptr(), 16);
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}
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Ok((Address(src, 16), Address(dst, 16)))
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},
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_ => Err(Error::ParseError("Invalid version"))
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}
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@ -35,11 +46,11 @@ impl Protocol for Packet {
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struct RoutingEntry {
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address: SocketAddr,
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bytes: Vec<u8>,
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bytes: [u8; 16],
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prefix_len: u8
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}
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pub struct RoutingTable(HashMap<Vec<u8>, Vec<RoutingEntry>>);
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pub struct RoutingTable(HashMap<[u8; 16], Vec<RoutingEntry>>);
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impl RoutingTable {
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pub fn new() -> Self {
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@ -55,7 +66,10 @@ impl Table for RoutingTable {
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};
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info!("New routing entry: {:?}/{} => {}", addr, prefix_len, address);
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let group_len = (prefix_len as usize / 16) * 2;
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let group_bytes: Vec<u8> = addr.0[..group_len].iter().map(|b| *b).collect();
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assert!(group_len <= 16);
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let mut group_bytes = [0; 16];
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unsafe { ptr::copy_nonoverlapping(addr.0.as_ptr(), group_bytes.as_mut_ptr(), group_len) };
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let routing_entry = RoutingEntry{address: address, bytes: addr.0, prefix_len: prefix_len};
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match self.0.entry(group_bytes) {
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hash_map::Entry::Occupied(mut entry) => entry.get_mut().push(routing_entry),
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@ -1,3 +1,4 @@
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#![cfg_attr(feature = "bench", feature(test))]
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#[macro_use] extern crate log;
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extern crate time;
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extern crate docopt;
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@ -6,6 +7,7 @@ extern crate epoll;
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extern crate signal;
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extern crate nix;
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#[cfg(feature = "crypto")] extern crate libsodium_sys;
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#[cfg(feature = "bench")] extern crate test;
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#[macro_use] mod util;
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mod types;
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@ -15,6 +17,7 @@ mod ethernet;
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mod ip;
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mod cloud;
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mod device;
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#[cfg(feature = "bench")] mod benches;
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use time::Duration;
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use docopt::Docopt;
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@ -35,10 +38,12 @@ use crypto::Crypto;
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struct SimpleLogger;
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impl log::Log for SimpleLogger {
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#[inline(always)]
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fn enabled(&self, _metadata: &log::LogMetadata) -> bool {
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true
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}
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#[inline(always)]
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fn log(&self, record: &log::LogRecord) {
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if self.enabled(record.metadata()) {
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println!("{} - {}", record.level(), record.args());
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45
src/types.rs
45
src/types.rs
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@ -7,12 +7,27 @@ use super::util::{as_bytes, as_obj};
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pub type NetworkId = u64;
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#[derive(PartialEq, PartialOrd, Eq, Ord, Hash, Clone)]
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pub struct Address(pub Vec<u8>);
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#[derive(PartialOrd, Eq, Ord, Clone, Hash)]
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pub struct Address(pub [u8; 16], pub u8);
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impl PartialEq for Address {
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fn eq(&self, rhs: &Self) -> bool {
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if self.1 != rhs.1 {
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return false;
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}
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for i in 0..self.1 as usize {
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if self.0[i] != rhs.0[i] {
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return false;
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}
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}
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true
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}
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}
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impl fmt::Debug for Address {
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fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
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match self.0.len() {
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match self.1 {
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4 => write!(formatter, "{}.{}.{}.{}", self.0[0], self.0[1], self.0[2], self.0[3]),
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6 => write!(formatter, "{:02x}:{:02x}:{:02x}:{:02x}:{:02x}:{:02x}",
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self.0[0], self.0[1], self.0[2], self.0[3], self.0[4], self.0[5]),
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@ -36,12 +51,11 @@ impl FromStr for Address {
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fn from_str(text: &str) -> Result<Self, Self::Err> {
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if let Ok(addr) = Ipv4Addr::from_str(text) {
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let ip = addr.octets();
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let mut res = Vec::with_capacity(4);
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let mut res = [0; 16];
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unsafe {
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res.set_len(4);
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ptr::copy_nonoverlapping(ip.as_ptr(), res.as_mut_ptr(), ip.len());
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}
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return Ok(Address(res));
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return Ok(Address(res, 4));
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}
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if let Ok(addr) = Ipv6Addr::from_str(text) {
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let mut segments = addr.segments();
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@ -49,20 +63,19 @@ impl FromStr for Address {
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segments[i] = segments[i].to_be();
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}
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let bytes = unsafe { as_bytes(&segments) };
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let mut res = Vec::with_capacity(16);
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let mut res = [0; 16];
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unsafe {
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res.set_len(16);
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ptr::copy_nonoverlapping(bytes.as_ptr(), res.as_mut_ptr(), bytes.len());
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}
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return Ok(Address(res));
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return Ok(Address(res, 16));
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}
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let parts: Vec<&str> = text.split(':').collect();
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if parts.len() == 6 {
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let mut bytes = Vec::with_capacity(6);
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let mut bytes = [0; 16];
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for i in 0..6 {
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bytes.push(try!(u8::from_str_radix(&parts[i], 16).map_err(|_| Error::ParseError("Failed to parse mac"))));
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bytes[i] = try!(u8::from_str_radix(&parts[i], 16).map_err(|_| Error::ParseError("Failed to parse mac")));
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}
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return Ok(Address(bytes));
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return Ok(Address(bytes, 6));
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}
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return Err(Error::ParseError("Failed to parse address"))
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}
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@ -154,8 +167,8 @@ impl fmt::Display for Error {
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#[test]
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fn address_fmt() {
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assert_eq!(format!("{:?}", Address(vec![120,45,22,5])), "120.45.22.5");
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assert_eq!(format!("{:?}", Address(vec![120,45,22,5,1,2])), "78:2d:16:05:01:02");
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assert_eq!(format!("{:?}", Address(vec![3,56,120,45,22,5,1,2])), "vlan824/78:2d:16:05:01:02");
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assert_eq!(format!("{:?}", Address(vec![0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15])), "0001:0203:0405:0607:0809:0a0b:0c0d:0e0f");
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assert_eq!(format!("{:?}", Address([120,45,22,5,0,0,0,0,0,0,0,0,0,0,0,0], 4)), "120.45.22.5");
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assert_eq!(format!("{:?}", Address([120,45,22,5,1,2,0,0,0,0,0,0,0,0,0,0], 6)), "78:2d:16:05:01:02");
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assert_eq!(format!("{:?}", Address([3,56,120,45,22,5,1,2,0,0,0,0,0,0,0,0], 8)), "vlan824/78:2d:16:05:01:02");
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assert_eq!(format!("{:?}", Address([0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15], 16)), "0001:0203:0405:0607:0809:0a0b:0c0d:0e0f");
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}
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@ -3,7 +3,7 @@ use std::net::{SocketAddr, SocketAddrV4, Ipv4Addr, SocketAddrV6, Ipv6Addr};
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use std::u16;
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use super::types::{Error, NetworkId, Range, Address};
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use super::util::{as_obj, as_bytes, to_vec};
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use super::util::{as_obj, as_bytes};
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use super::crypto::Crypto;
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|
||||
const MAGIC: [u8; 3] = [0x76, 0x70, 0x6e];
|
||||
|
|
@ -166,7 +166,9 @@ pub fn decode<'a>(data: &'a mut [u8], crypto: &mut Crypto) -> Result<(Options, M
|
|||
if end < pos + len + 1 {
|
||||
return Err(Error::ParseError("Init data too short"));
|
||||
}
|
||||
let base = Address(to_vec(&data[pos..pos+len]));
|
||||
let mut addr = [0; 16];
|
||||
unsafe { ptr::copy_nonoverlapping(data[pos..].as_ptr(), addr.as_mut_ptr(), len) };
|
||||
let base = Address(addr, len as u8);
|
||||
let prefix_len = data[pos+len];
|
||||
pos += len + 1;
|
||||
addrs.push(Range{base: base, prefix_len: prefix_len});
|
||||
|
|
@ -260,8 +262,7 @@ pub fn encode(options: &Options, msg: &Message, buf: &mut [u8], crypto: &mut Cry
|
|||
pos += 1;
|
||||
for range in ranges {
|
||||
let base = &range.base;
|
||||
let len = base.0.len();
|
||||
assert!(len <= 255);
|
||||
let len = base.1 as usize;
|
||||
assert!(buf.len() >= pos + 1 + len + 1);
|
||||
buf[pos] = len as u8;
|
||||
pos += 1;
|
||||
|
|
@ -350,8 +351,8 @@ fn encode_option_network_id() {
|
|||
fn encode_message_init() {
|
||||
let mut options = Options::default();
|
||||
let mut crypto = Crypto::None;
|
||||
let addrs = vec![Range{base: Address(vec![0,1,2,3]), prefix_len: 24},
|
||||
Range{base: Address(vec![0,1,2,3,4,5]), prefix_len: 16}];
|
||||
let addrs = vec![Range{base: Address([0,1,2,3,0,0,0,0,0,0,0,0,0,0,0,0], 4), prefix_len: 24},
|
||||
Range{base: Address([0,1,2,3,4,5,0,0,0,0,0,0,0,0,0,0], 6), prefix_len: 16}];
|
||||
let msg = Message::Init(addrs);
|
||||
let mut buf = [0; 1024];
|
||||
let size = encode(&mut options, &msg, &mut buf[..], &mut crypto);
|
||||
|
|
|
|||
11
src/util.rs
11
src/util.rs
|
|
@ -1,4 +1,4 @@
|
|||
use std::{mem, slice, ptr};
|
||||
use std::{mem, slice};
|
||||
|
||||
#[inline(always)]
|
||||
pub unsafe fn as_bytes<T>(obj: &T) -> &[u8] {
|
||||
|
|
@ -11,15 +11,6 @@ pub unsafe fn as_obj<T>(data: &[u8]) -> &T {
|
|||
mem::transmute(data.as_ptr())
|
||||
}
|
||||
|
||||
pub fn to_vec(data: &[u8]) -> Vec<u8> {
|
||||
let mut v = Vec::with_capacity(data.len());
|
||||
unsafe {
|
||||
ptr::copy_nonoverlapping(data.as_ptr(), v.as_mut_ptr(), data.len());
|
||||
v.set_len(data.len());
|
||||
}
|
||||
v
|
||||
}
|
||||
|
||||
macro_rules! fail {
|
||||
($format:expr) => ( {
|
||||
use std::process;
|
||||
|
|
|
|||
Loading…
Reference in New Issue