Squashed commit of the following:
commit 1e26a0bef44e65023a97a16ecf3b123e688d19f7 Author: Mathias Hall-Andersen <mathias@hall-andersen.dk> Date: Sat Feb 1 14:36:50 2020 +0100 Initial version of sticky sockets for Linux commit 605cc656ad235d09ba6cd12d03dee2c5e0a9a80a Author: Mathias Hall-Andersen <mathias@hall-andersen.dk> Date: Thu Jan 30 14:57:00 2020 +0100 Clear src when sendmsg fails with EINVAL commit dffd2b228af70f681e2a161642bbdaa348419bf3 Author: Mathias Hall-Andersen <mathias@hall-andersen.dk> Date: Sun Jan 26 14:01:28 2020 +0100 Fix typoes commit 2015663706fbe15ed1ac443a31de86b3e6c643c7 Author: Mathias Hall-Andersen <mathias@hall-andersen.dk> Date: Sun Jan 26 13:51:59 2020 +0100 Restructure of public key -> peer state Restructured the mapping of public keys to peer state in the project. The handshake device is now generic over an opaque type, which enables it to be the sole place where public keys are mapped to the peer states. This gets rid of the "peer" map in the WireGuard devices and avoids having to include the public key in the handshake peer state. commit bbcfaad4bcc5cf16bacdef0cefe7d29ba1519a23 Author: Mathias Hall-Andersen <mathias@hall-andersen.dk> Date: Fri Jan 10 21:10:27 2020 +0100 Fixed bind6 also binding on IPv4 commit acbca236b70598c20c24de474690bcad883241d4 Author: Mathias Hall-Andersen <mathias@hall-andersen.dk> Date: Thu Jan 9 11:24:13 2020 +0100 Work on sticky sockets
This commit is contained in:
Mathias Hall-Andersen
139
Cargo.lock
generated
139
Cargo.lock
generated
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|
||||
"checksum cpuprofiler 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "43f8479dbcfd2bbaa0c0c26779b913052b375981cdf533091f2127ea3d42e52b"
|
||||
"checksum crossbeam-channel 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "acec9a3b0b3559f15aee4f90746c4e5e293b701c0f7d3925d24e01645267b68c"
|
||||
"checksum crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ce446db02cdc3165b94ae73111e570793400d0794e46125cc4056c81cbb039f4"
|
||||
"checksum crypto-mac 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4434400df11d95d556bac068ddfedd482915eb18fe8bea89bc80b6e4b1c179e5"
|
||||
"checksum curve25519-dalek 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8b7dcd30ba50cdf88b55b033456138b7c0ac4afdc436d82e1b79f370f24cc66d"
|
||||
"checksum curve25519-dalek 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "26778518a7f6cffa1d25a44b602b62b979bd88adb9e99ffec546998cf3404839"
|
||||
"checksum daemonize 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "70c24513e34f53b640819f0ac9f705b673fcf4006d7aab8778bee72ebfc89815"
|
||||
"checksum digest 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f3d0c8c8752312f9713efd397ff63acb9f85585afbf179282e720e7704954dd5"
|
||||
"checksum env_logger 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "aafcde04e90a5226a6443b7aabdb016ba2f8307c847d524724bd9b346dd1a2d3"
|
||||
@@ -1371,7 +1394,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
"checksum pnet_packet 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)" = "08a6cdcdaddc5174f18286298842a4e31cd3cc018933d42af51434b1fa07dcbe"
|
||||
"checksum pnet_sys 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)" = "682b2eca84cc440bce8336813f78eb6d3cb0fed89fe0e87ae22acfca8363f176"
|
||||
"checksum pnet_transport 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5faa55dcf725487a699adcff88dfea8f17ea34fa2640528866d9acbb4e3a104f"
|
||||
"checksum poly1305 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fb59dfc6d8dd49677e39bf8fdf4c62235a8d84dbe2ef2913e139d3f62bb65f70"
|
||||
"checksum poly1305 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b5829f50f48e9ddb79f3f7c3097029d0caee30f8286accb241416df603b080b8"
|
||||
"checksum ppv-lite86 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e3cbf9f658cdb5000fcf6f362b8ea2ba154b9f146a61c7a20d647034c6b6561b"
|
||||
"checksum proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)" = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
|
||||
"checksum proc-macro2 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4c5c2380ae88876faae57698be9e9775e3544decad214599c3a6266cca6ac802"
|
||||
@@ -1385,7 +1408,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
"checksum rand_chacha 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "03a2a90da8c7523f554344f921aa97283eadf6ac484a6d2a7d0212fa7f8d6853"
|
||||
"checksum rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6fdeb83b075e8266dcc8762c22776f6877a63111121f5f8c7411e5be7eed4b"
|
||||
"checksum rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9c33a3c44ca05fa6f1807d8e6743f3824e8509beca625669633be0acbdf509dc"
|
||||
"checksum rand_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "615e683324e75af5d43d8f7a39ffe3ee4a9dc42c5c701167a71dc59c3a493aca"
|
||||
"checksum rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
|
||||
"checksum rand_hc 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7b40677c7be09ae76218dc623efbf7b18e34bced3f38883af07bb75630a21bc4"
|
||||
"checksum rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
|
||||
"checksum rand_isaac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ded997c9d5f13925be2a6fd7e66bf1872597f759fd9dd93513dd7e92e5a5ee08"
|
||||
@@ -1402,17 +1425,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
"checksum rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
|
||||
"checksum rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)" = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
|
||||
"checksum rusty-fork 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3dd93264e10c577503e926bd1430193eeb5d21b059148910082245309b424fae"
|
||||
"checksum salsa20-core 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c7fd325cb25b420aab2c035b5b76966d9f91b88fb54084ce6c0cd072a1ae5cda"
|
||||
"checksum serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)" = "fec2851eb56d010dc9a21b89ca53ee75e6528bab60c11e89d38390904982da9f"
|
||||
"checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
|
||||
"checksum sourcefile 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "4bf77cb82ba8453b42b6ae1d692e4cdc92f9a47beaf89a847c8be83f4e328ad3"
|
||||
"checksum spin 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cbdb51a221842709c2dd65b62ad4b78289fc3e706a02c17a26104528b6aa7837"
|
||||
"checksum spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
|
||||
"checksum stream-cipher 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8131256a5896cabcf5eb04f4d6dacbe1aefda854b0d9896e09cb58829ec5638c"
|
||||
"checksum subtle 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2d67a5a62ba6e01cb2192ff309324cb4875d0c451d55fe2319433abe7a05a8ee"
|
||||
"checksum subtle 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "01f40907d9ffc762709e4ff3eb4a6f6b41b650375a3f09ac92b641942b7fb082"
|
||||
"checksum subtle 2.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7c65d530b10ccaeac294f349038a597e435b18fb456aadd0840a623f83b9e941"
|
||||
"checksum syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)" = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
|
||||
"checksum syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "66850e97125af79138385e9b88339cbcd037e3f28ceab8c5ad98e64f0f1f80bf"
|
||||
"checksum synstructure 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "02353edf96d6e4dc81aea2d8490a7e9db177bf8acb0e951c24940bf866cb313f"
|
||||
"checksum synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)" = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
|
||||
"checksum syntex 0.42.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0a30b08a6b383a22e5f6edc127d169670d48f905bb00ca79a00ea3e442ebe317"
|
||||
"checksum syntex_errors 0.42.0 (registry+https://github.com/rust-lang/crates.io-index)" = "04c48f32867b6114449155b2a82114b86d4b09e1bddb21c47ff104ab9172b646"
|
||||
"checksum syntex_pos 0.42.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3fd49988e52451813c61fecbe9abb5cfd4e1b7bb6cdbb980a6fbcbab859171a6"
|
||||
@@ -1427,6 +1450,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
"checksum unicode-xid 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "36dff09cafb4ec7c8cf0023eb0b686cb6ce65499116a12201c9e11840ca01beb"
|
||||
"checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
|
||||
"checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
|
||||
"checksum universal-hash 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df0c900f2f9b4116803415878ff48b63da9edb268668e08cf9292d7503114a01"
|
||||
"checksum untrusted 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "60369ef7a31de49bcb3f6ca728d4ba7300d9a1658f94c727d4cab8c8d9f4aece"
|
||||
"checksum utf8-ranges 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b4ae116fef2b7fea257ed6440d3cfcff7f190865f170cdad00bb6465bf18ecba"
|
||||
"checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
|
||||
@@ -1448,7 +1472,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
"checksum wincolor 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "96f5016b18804d24db43cebf3c77269e7569b8954a8464501c216cc5e070eaa9"
|
||||
"checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
|
||||
"checksum x25519-dalek 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7ee1585dc1484373cbc1cee7aafda26634665cf449436fd6e24bfd1fad230538"
|
||||
"checksum x25519-dalek 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "637ff90c9540fa3073bb577e65033069e4bae7c79d49d74aa3ffdf5342a53217"
|
||||
"checksum zerocopy 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "992b9b31f80fd4a167f903f879b8ca43d6716cc368ea01df90538baa2dd34056"
|
||||
"checksum zerocopy-derive 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b090467ecd0624026e8a6405d343ac7382592530d54881330b3fc8e400280fa5"
|
||||
"checksum zeroize 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "45af6a010d13e4cf5b54c94ba5a2b2eba5596b9e46bf5875612d332a1f2b3f86"
|
||||
"checksum zeroize 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3cbac2ed2ba24cc90f5e06485ac8c7c1e5449fe8911aef4d8877218af021a5b8"
|
||||
"checksum zeroize_derive 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "de251eec69fc7c1bc3923403d18ececb929380e016afe103da75f396704f8ca2"
|
||||
|
||||
16
Cargo.toml
16
Cargo.toml
@@ -1,14 +1,12 @@
|
||||
[package]
|
||||
name = "wireguard-rs"
|
||||
version = "0.1.0"
|
||||
version = "0.1.1"
|
||||
authors = ["Mathias Hall-Andersen <mathias@hall-andersen.dk>"]
|
||||
edition = "2018"
|
||||
license = "MIT"
|
||||
|
||||
[dependencies]
|
||||
hex = "0.3"
|
||||
spin = "0.5.0"
|
||||
rand = "0.6.5"
|
||||
spin = "0.5.2"
|
||||
blake2 = "0.8"
|
||||
log = { version = "0.4", features = ["max_level_trace", "release_max_level_info"] }
|
||||
hmac = "0.7.1"
|
||||
@@ -20,8 +18,10 @@ arraydeque = "0.4.5"
|
||||
treebitmap = "^0.4"
|
||||
hjul = "0.2.1"
|
||||
ring = "0.16.7"
|
||||
chacha20poly1305 = "^0.1"
|
||||
aead = "^0.1.1"
|
||||
rand = "^0.7"
|
||||
rand_core = "^0.5"
|
||||
chacha20poly1305 = "^0.3"
|
||||
aead = "^0.2"
|
||||
clear_on_drop = "0.2.3"
|
||||
env_logger = "0.6"
|
||||
num_cpus = "^1.10"
|
||||
@@ -33,7 +33,7 @@ cpuprofiler = { version = "*", optional = true }
|
||||
libc = "0.2"
|
||||
|
||||
[dependencies.x25519-dalek]
|
||||
version = "^0.5"
|
||||
version = "^0.6"
|
||||
|
||||
[dependencies.subtle]
|
||||
version = "2.1"
|
||||
@@ -47,4 +47,4 @@ start_up = []
|
||||
pnet = "^0.22"
|
||||
proptest = "0.9.4"
|
||||
rand_chacha = "0.2.1"
|
||||
rand_core = "0.5"
|
||||
|
||||
|
||||
@@ -1,3 +1,4 @@
|
||||
use std::mem;
|
||||
use std::net::{IpAddr, SocketAddr};
|
||||
use std::sync::atomic::Ordering;
|
||||
use std::sync::{Arc, Mutex, MutexGuard};
|
||||
@@ -205,7 +206,7 @@ impl<T: tun::Tun, B: udp::PlatformUDP> Configuration for WireGuardConfig<T, B> {
|
||||
}
|
||||
|
||||
fn get_fwmark(&self) -> Option<u32> {
|
||||
self.lock().bind.as_ref().and_then(|own| own.get_fwmark())
|
||||
self.lock().fwmark
|
||||
}
|
||||
|
||||
fn set_private_key(&self, sk: Option<StaticSecret>) {
|
||||
@@ -266,24 +267,22 @@ impl<T: tun::Tun, B: udp::PlatformUDP> Configuration for WireGuardConfig<T, B> {
|
||||
fn set_listen_port(&self, port: u16) -> Result<(), ConfigError> {
|
||||
log::trace!("Config, Set listen port: {:?}", port);
|
||||
|
||||
// update port
|
||||
let listen: bool = {
|
||||
// update port and take old bind
|
||||
let old: Option<B::Owner> = {
|
||||
let mut cfg = self.lock();
|
||||
let old = mem::replace(&mut cfg.bind, None);
|
||||
cfg.port = port;
|
||||
if cfg.bind.is_some() {
|
||||
cfg.bind = None;
|
||||
true
|
||||
} else {
|
||||
false
|
||||
}
|
||||
old
|
||||
};
|
||||
|
||||
// restart listener if bound
|
||||
if listen {
|
||||
if old.is_some() {
|
||||
self.start_listener()
|
||||
} else {
|
||||
Ok(())
|
||||
}
|
||||
|
||||
// old bind is dropped, causing the file-descriptors to be released
|
||||
}
|
||||
|
||||
fn set_fwmark(&self, mark: Option<u32>) -> Result<(), ConfigError> {
|
||||
|
||||
@@ -2,7 +2,6 @@ use log;
|
||||
use std::io;
|
||||
|
||||
use super::Configuration;
|
||||
use super::Endpoint;
|
||||
|
||||
pub fn serialize<C: Configuration, W: io::Write>(writer: &mut W, config: &C) -> io::Result<()> {
|
||||
let mut write = |key: &'static str, value: String| {
|
||||
@@ -46,7 +45,7 @@ pub fn serialize<C: Configuration, W: io::Write>(writer: &mut W, config: &C) ->
|
||||
}
|
||||
|
||||
if let Some(endpoint) = p.endpoint {
|
||||
write("endpoint", endpoint.into_address().to_string())?;
|
||||
write("endpoint", endpoint.to_string())?;
|
||||
}
|
||||
|
||||
for (ip, cidr) in p.allowed_ips {
|
||||
|
||||
@@ -4,7 +4,6 @@ mod set;
|
||||
use log;
|
||||
use std::io::{Read, Write};
|
||||
|
||||
use super::Endpoint;
|
||||
use super::{ConfigError, Configuration};
|
||||
|
||||
use get::serialize;
|
||||
|
||||
@@ -112,6 +112,8 @@ fn main() {
|
||||
.try_init()
|
||||
.expect("Failed to initialize event logger");
|
||||
|
||||
log::info!("starting {} wireguard device", name);
|
||||
|
||||
// drop privileges
|
||||
if drop_privileges {}
|
||||
|
||||
|
||||
@@ -165,8 +165,7 @@ impl TunTest {
|
||||
sync_channel(1)
|
||||
};
|
||||
|
||||
let mut rng = OsRng::new().unwrap();
|
||||
let id: u32 = rng.gen();
|
||||
let id: u32 = OsRng.gen();
|
||||
|
||||
let fake = TunFakeIO {
|
||||
id,
|
||||
|
||||
@@ -54,7 +54,7 @@ impl Reader<UnitEndpoint> for VoidBind {
|
||||
impl Writer<UnitEndpoint> for VoidBind {
|
||||
type Error = BindError;
|
||||
|
||||
fn write(&self, _buf: &[u8], _dst: &UnitEndpoint) -> Result<(), Self::Error> {
|
||||
fn write(&self, _buf: &[u8], _dst: &mut UnitEndpoint) -> Result<(), Self::Error> {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
@@ -105,7 +105,7 @@ impl Reader<UnitEndpoint> for PairReader<UnitEndpoint> {
|
||||
|
||||
impl Writer<UnitEndpoint> for PairWriter<UnitEndpoint> {
|
||||
type Error = BindError;
|
||||
fn write(&self, buf: &[u8], _dst: &UnitEndpoint) -> Result<(), Self::Error> {
|
||||
fn write(&self, buf: &[u8], _dst: &mut UnitEndpoint) -> Result<(), Self::Error> {
|
||||
debug!(
|
||||
"dummy({}): write ({}, {})",
|
||||
self.id,
|
||||
@@ -135,9 +135,8 @@ impl PairBind {
|
||||
(PairReader<E>, PairWriter<E>),
|
||||
(PairReader<E>, PairWriter<E>),
|
||||
) {
|
||||
let mut rng = OsRng::new().unwrap();
|
||||
let id1: u32 = rng.gen();
|
||||
let id2: u32 = rng.gen();
|
||||
let id1: u32 = OsRng.gen();
|
||||
let id2: u32 = OsRng.gen();
|
||||
|
||||
let (tx1, rx1) = sync_channel(128);
|
||||
let (tx2, rx2) = sync_channel(128);
|
||||
@@ -187,10 +186,6 @@ impl Owner for VoidOwner {
|
||||
fn get_port(&self) -> u16 {
|
||||
0
|
||||
}
|
||||
|
||||
fn get_fwmark(&self) -> Option<u32> {
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
impl PlatformUDP for PairBind {
|
||||
|
||||
@@ -199,7 +199,7 @@ impl Status for LinuxTunStatus {
|
||||
// cut buffer to size
|
||||
let size: usize = size as usize;
|
||||
let mut remain = &buf[..size];
|
||||
log::debug!("netlink, recieved message ({} bytes)", size);
|
||||
log::debug!("netlink, received message ({} bytes)", size);
|
||||
|
||||
// handle messages
|
||||
while remain.len() >= HDR_SIZE {
|
||||
|
||||
@@ -1,41 +1,434 @@
|
||||
use super::super::udp::*;
|
||||
use super::super::Endpoint;
|
||||
|
||||
use log;
|
||||
|
||||
use std::convert::TryInto;
|
||||
use std::io;
|
||||
use std::net::{SocketAddr, UdpSocket};
|
||||
use std::sync::Arc;
|
||||
use std::mem;
|
||||
use std::net::{SocketAddr, SocketAddrV4, SocketAddrV6};
|
||||
use std::os::unix::io::RawFd;
|
||||
use std::ptr;
|
||||
|
||||
fn errno() -> libc::c_int {
|
||||
unsafe {
|
||||
let ptr = libc::__errno_location();
|
||||
if ptr.is_null() {
|
||||
0
|
||||
} else {
|
||||
*ptr
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[repr(C, align(1))]
|
||||
struct ControlHeaderV4 {
|
||||
hdr: libc::cmsghdr,
|
||||
info: libc::in_pktinfo,
|
||||
}
|
||||
|
||||
#[repr(C, align(1))]
|
||||
struct ControlHeaderV6 {
|
||||
hdr: libc::cmsghdr,
|
||||
info: libc::in6_pktinfo,
|
||||
}
|
||||
|
||||
pub struct EndpointV4 {
|
||||
dst: libc::sockaddr_in, // destination IP
|
||||
info: libc::in_pktinfo, // src & ifindex
|
||||
}
|
||||
|
||||
pub struct EndpointV6 {
|
||||
dst: libc::sockaddr_in6, // destination IP
|
||||
info: libc::in6_pktinfo, // src & zone id
|
||||
}
|
||||
|
||||
pub struct LinuxUDP();
|
||||
|
||||
pub struct LinuxOwner {
|
||||
port: u16,
|
||||
sock4: Option<RawFd>,
|
||||
sock6: Option<RawFd>,
|
||||
}
|
||||
|
||||
pub enum LinuxUDPReader {
|
||||
V4(RawFd),
|
||||
V6(RawFd),
|
||||
}
|
||||
|
||||
#[derive(Clone)]
|
||||
pub struct LinuxUDP(Arc<UdpSocket>);
|
||||
pub struct LinuxUDPWriter {
|
||||
sock4: RawFd,
|
||||
sock6: RawFd,
|
||||
}
|
||||
|
||||
pub struct LinuxOwner(Arc<UdpSocket>);
|
||||
pub enum LinuxEndpoint {
|
||||
V4(EndpointV4),
|
||||
V6(EndpointV6),
|
||||
}
|
||||
|
||||
impl Endpoint for SocketAddr {
|
||||
fn clear_src(&mut self) {}
|
||||
impl Endpoint for LinuxEndpoint {
|
||||
fn clear_src(&mut self) {
|
||||
match self {
|
||||
LinuxEndpoint::V4(EndpointV4 { ref mut info, .. }) => {
|
||||
info.ipi_ifindex = 0;
|
||||
info.ipi_spec_dst = libc::in_addr { s_addr: 0 };
|
||||
}
|
||||
LinuxEndpoint::V6(EndpointV6 { ref mut info, .. }) => {
|
||||
info.ipi6_addr = libc::in6_addr { s6_addr: [0; 16] };
|
||||
info.ipi6_ifindex = 0;
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
fn from_address(addr: SocketAddr) -> Self {
|
||||
addr
|
||||
match addr {
|
||||
SocketAddr::V4(addr) => LinuxEndpoint::V4(EndpointV4 {
|
||||
dst: libc::sockaddr_in {
|
||||
sin_family: libc::AF_INET as libc::sa_family_t,
|
||||
sin_port: addr.port().to_be(),
|
||||
sin_addr: libc::in_addr {
|
||||
s_addr: u32::from(*addr.ip()).to_be(),
|
||||
},
|
||||
sin_zero: [0; 8],
|
||||
},
|
||||
info: libc::in_pktinfo {
|
||||
ipi_ifindex: 0, // interface (0 is via routing table)
|
||||
ipi_spec_dst: libc::in_addr { s_addr: 0 }, // src IP (dst of incoming packet)
|
||||
ipi_addr: libc::in_addr { s_addr: 0 },
|
||||
},
|
||||
}),
|
||||
SocketAddr::V6(addr) => LinuxEndpoint::V6(EndpointV6 {
|
||||
dst: libc::sockaddr_in6 {
|
||||
sin6_family: libc::AF_INET6 as libc::sa_family_t,
|
||||
sin6_port: addr.port().to_be(),
|
||||
sin6_flowinfo: addr.flowinfo(),
|
||||
sin6_addr: libc::in6_addr {
|
||||
s6_addr: addr.ip().octets(),
|
||||
},
|
||||
sin6_scope_id: addr.scope_id(),
|
||||
},
|
||||
info: libc::in6_pktinfo {
|
||||
ipi6_addr: libc::in6_addr { s6_addr: [0; 16] }, // src IP
|
||||
ipi6_ifindex: 0, // zone id
|
||||
},
|
||||
}),
|
||||
}
|
||||
}
|
||||
|
||||
fn into_address(&self) -> SocketAddr {
|
||||
*self
|
||||
match self {
|
||||
LinuxEndpoint::V4(EndpointV4 { ref dst, .. }) => {
|
||||
SocketAddr::V4(SocketAddrV4::new(
|
||||
u32::from_be(dst.sin_addr.s_addr).into(), // IPv4 addr
|
||||
u16::from_be(dst.sin_port), // convert back to native byte-order
|
||||
))
|
||||
}
|
||||
LinuxEndpoint::V6(EndpointV6 { ref dst, .. }) => SocketAddr::V6(SocketAddrV6::new(
|
||||
u128::from_ne_bytes(dst.sin6_addr.s6_addr).into(), // IPv6 addr
|
||||
u16::from_be(dst.sin6_port), // convert back to native byte-order
|
||||
dst.sin6_flowinfo,
|
||||
dst.sin6_scope_id,
|
||||
)),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Reader<SocketAddr> for LinuxUDP {
|
||||
type Error = io::Error;
|
||||
|
||||
fn read(&self, buf: &mut [u8]) -> Result<(usize, SocketAddr), Self::Error> {
|
||||
self.0.recv_from(buf)
|
||||
}
|
||||
}
|
||||
|
||||
impl Writer<SocketAddr> for LinuxUDP {
|
||||
type Error = io::Error;
|
||||
|
||||
fn write(&self, buf: &[u8], dst: &SocketAddr) -> Result<(), Self::Error> {
|
||||
self.0.send_to(buf, dst)?;
|
||||
fn setsockopt<V: Sized>(
|
||||
fd: RawFd,
|
||||
level: libc::c_int,
|
||||
name: libc::c_int,
|
||||
value: &V,
|
||||
) -> Result<(), io::Error> {
|
||||
let res = unsafe {
|
||||
libc::setsockopt(
|
||||
fd,
|
||||
level,
|
||||
name,
|
||||
mem::transmute(value),
|
||||
mem::size_of_val(value).try_into().unwrap(),
|
||||
)
|
||||
};
|
||||
if res == 0 {
|
||||
Ok(())
|
||||
} else {
|
||||
Err(io::Error::new(
|
||||
io::ErrorKind::Other,
|
||||
format!("Failed to set sockopt (res = {}, errno = {})", res, errno()),
|
||||
))
|
||||
}
|
||||
}
|
||||
|
||||
#[inline(always)]
|
||||
fn setsockopt_int(
|
||||
fd: RawFd,
|
||||
level: libc::c_int,
|
||||
name: libc::c_int,
|
||||
value: libc::c_int,
|
||||
) -> Result<(), io::Error> {
|
||||
setsockopt(fd, level, name, &value)
|
||||
}
|
||||
|
||||
#[allow(non_snake_case)]
|
||||
const fn CMSG_ALIGN(len: usize) -> usize {
|
||||
(((len) + mem::size_of::<u32>() - 1) & !(mem::size_of::<u32>() - 1))
|
||||
}
|
||||
|
||||
#[allow(non_snake_case)]
|
||||
const fn CMSG_LEN(len: usize) -> usize {
|
||||
CMSG_ALIGN(len + mem::size_of::<libc::cmsghdr>())
|
||||
}
|
||||
|
||||
#[inline(always)]
|
||||
fn safe_cast<T, D>(v: &mut T) -> *mut D {
|
||||
(v as *mut T) as *mut D
|
||||
}
|
||||
|
||||
impl LinuxUDPReader {
|
||||
fn read6(fd: RawFd, buf: &mut [u8]) -> Result<(usize, LinuxEndpoint), io::Error> {
|
||||
log::trace!(
|
||||
"receive IPv6 packet (block), (fd {}, max-len {})",
|
||||
fd,
|
||||
buf.len()
|
||||
);
|
||||
|
||||
let mut iovs: [libc::iovec; 1] = [libc::iovec {
|
||||
iov_base: buf.as_mut_ptr() as *mut core::ffi::c_void,
|
||||
iov_len: buf.len(),
|
||||
}];
|
||||
let mut src: libc::sockaddr_in6 = unsafe { mem::MaybeUninit::uninit().assume_init() };
|
||||
let mut control: ControlHeaderV6 = unsafe { mem::MaybeUninit::uninit().assume_init() };
|
||||
let mut hdr = libc::msghdr {
|
||||
msg_name: safe_cast(&mut src),
|
||||
msg_namelen: mem::size_of::<libc::sockaddr_in6> as u32,
|
||||
msg_iov: iovs.as_mut_ptr(),
|
||||
msg_iovlen: iovs.len(),
|
||||
msg_control: safe_cast(&mut control),
|
||||
msg_controllen: mem::size_of::<ControlHeaderV6>(),
|
||||
msg_flags: 0,
|
||||
};
|
||||
|
||||
debug_assert!(
|
||||
hdr.msg_controllen
|
||||
>= mem::size_of::<libc::cmsghdr>() + mem::size_of::<libc::in6_pktinfo>(),
|
||||
);
|
||||
|
||||
let len = unsafe { libc::recvmsg(fd, &mut hdr as *mut libc::msghdr, 0) };
|
||||
|
||||
if len < 0 {
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::NotConnected,
|
||||
"failed to receive",
|
||||
));
|
||||
}
|
||||
|
||||
Ok((
|
||||
len.try_into().unwrap(),
|
||||
LinuxEndpoint::V6(EndpointV6 {
|
||||
info: control.info, // save pktinfo (sticky source)
|
||||
dst: src, // our future destination is the source address
|
||||
}),
|
||||
))
|
||||
}
|
||||
|
||||
fn read4(fd: RawFd, buf: &mut [u8]) -> Result<(usize, LinuxEndpoint), io::Error> {
|
||||
log::trace!(
|
||||
"receive IPv4 packet (block), (fd {}, max-len {})",
|
||||
fd,
|
||||
buf.len()
|
||||
);
|
||||
|
||||
let mut iovs: [libc::iovec; 1] = [libc::iovec {
|
||||
iov_base: buf.as_mut_ptr() as *mut core::ffi::c_void,
|
||||
iov_len: buf.len(),
|
||||
}];
|
||||
let mut src: libc::sockaddr_in = unsafe { mem::MaybeUninit::uninit().assume_init() };
|
||||
let mut control: ControlHeaderV4 = unsafe { mem::MaybeUninit::uninit().assume_init() };
|
||||
let mut hdr = libc::msghdr {
|
||||
msg_name: safe_cast(&mut src),
|
||||
msg_namelen: mem::size_of::<libc::sockaddr_in> as u32,
|
||||
msg_iov: iovs.as_mut_ptr(),
|
||||
msg_iovlen: iovs.len(),
|
||||
msg_control: safe_cast(&mut control),
|
||||
msg_controllen: mem::size_of::<ControlHeaderV4>(),
|
||||
msg_flags: 0,
|
||||
};
|
||||
|
||||
debug_assert!(
|
||||
hdr.msg_controllen
|
||||
>= mem::size_of::<libc::cmsghdr>() + mem::size_of::<libc::in_pktinfo>(),
|
||||
);
|
||||
|
||||
let len = unsafe { libc::recvmsg(fd, &mut hdr as *mut libc::msghdr, 0) };
|
||||
|
||||
if len < 0 {
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::NotConnected,
|
||||
"failed to receive",
|
||||
));
|
||||
}
|
||||
|
||||
Ok((
|
||||
len.try_into().unwrap(),
|
||||
LinuxEndpoint::V4(EndpointV4 {
|
||||
info: control.info, // save pktinfo (sticky source)
|
||||
dst: src, // our future destination is the source address
|
||||
}),
|
||||
))
|
||||
}
|
||||
}
|
||||
|
||||
impl Reader<LinuxEndpoint> for LinuxUDPReader {
|
||||
type Error = io::Error;
|
||||
|
||||
fn read(&self, buf: &mut [u8]) -> Result<(usize, LinuxEndpoint), Self::Error> {
|
||||
match self {
|
||||
Self::V4(fd) => Self::read4(*fd, buf),
|
||||
Self::V6(fd) => Self::read6(*fd, buf),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl LinuxUDPWriter {
|
||||
fn write6(fd: RawFd, buf: &[u8], dst: &mut EndpointV6) -> Result<(), io::Error> {
|
||||
log::debug!("sending IPv6 packet ({} fd, {} bytes)", fd, buf.len());
|
||||
|
||||
let mut iovs: [libc::iovec; 1] = [libc::iovec {
|
||||
iov_base: buf.as_ptr() as *mut core::ffi::c_void,
|
||||
iov_len: buf.len(),
|
||||
}];
|
||||
|
||||
let mut control = ControlHeaderV6 {
|
||||
hdr: libc::cmsghdr {
|
||||
cmsg_len: CMSG_LEN(mem::size_of::<libc::in6_pktinfo>()),
|
||||
cmsg_level: libc::IPPROTO_IPV6,
|
||||
cmsg_type: libc::IPV6_PKTINFO,
|
||||
},
|
||||
info: dst.info,
|
||||
};
|
||||
|
||||
debug_assert_eq!(
|
||||
control.hdr.cmsg_len % mem::size_of::<u32>(),
|
||||
0,
|
||||
"cmsg_len must be aligned to a long"
|
||||
);
|
||||
|
||||
debug_assert_eq!(
|
||||
dst.dst.sin6_family,
|
||||
libc::AF_INET6 as libc::sa_family_t,
|
||||
"this method only handles IPv6 destinations"
|
||||
);
|
||||
|
||||
let mut hdr = libc::msghdr {
|
||||
msg_name: safe_cast(&mut dst.dst),
|
||||
msg_namelen: mem::size_of_val(&dst.dst).try_into().unwrap(),
|
||||
msg_iov: iovs.as_mut_ptr(),
|
||||
msg_iovlen: iovs.len(),
|
||||
msg_control: safe_cast(&mut control),
|
||||
msg_controllen: mem::size_of_val(&control),
|
||||
msg_flags: 0,
|
||||
};
|
||||
|
||||
let ret = unsafe { libc::sendmsg(fd, &hdr, 0) };
|
||||
|
||||
if ret < 0 {
|
||||
if errno() == libc::EINVAL {
|
||||
log::trace!("clear source and retry");
|
||||
hdr.msg_control = ptr::null_mut();
|
||||
hdr.msg_controllen = 0;
|
||||
dst.info = unsafe { mem::zeroed() };
|
||||
if unsafe { libc::sendmsg(fd, &hdr, 0) } < 0 {
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::NotConnected,
|
||||
"failed to send IPv6 packet",
|
||||
));
|
||||
} else {
|
||||
return Ok(());
|
||||
}
|
||||
}
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::NotConnected,
|
||||
"failed to send IPv6 packet",
|
||||
));
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn write4(fd: RawFd, buf: &[u8], dst: &mut EndpointV4) -> Result<(), io::Error> {
|
||||
log::debug!("sending IPv4 packet ({} fd, {} bytes)", fd, buf.len());
|
||||
|
||||
let mut iovs: [libc::iovec; 1] = [libc::iovec {
|
||||
iov_base: buf.as_ptr() as *mut core::ffi::c_void,
|
||||
iov_len: buf.len(),
|
||||
}];
|
||||
|
||||
let mut control = ControlHeaderV4 {
|
||||
hdr: libc::cmsghdr {
|
||||
cmsg_len: CMSG_LEN(mem::size_of::<libc::in_pktinfo>()),
|
||||
cmsg_level: libc::IPPROTO_IP,
|
||||
cmsg_type: libc::IP_PKTINFO,
|
||||
},
|
||||
info: dst.info,
|
||||
};
|
||||
|
||||
debug_assert_eq!(
|
||||
control.hdr.cmsg_len % mem::size_of::<u32>(),
|
||||
0,
|
||||
"cmsg_len must be aligned to a long"
|
||||
);
|
||||
|
||||
debug_assert_eq!(
|
||||
dst.dst.sin_family,
|
||||
libc::AF_INET as libc::sa_family_t,
|
||||
"this method only handles IPv4 destinations"
|
||||
);
|
||||
|
||||
let mut hdr = libc::msghdr {
|
||||
msg_name: safe_cast(&mut dst.dst),
|
||||
msg_namelen: mem::size_of_val(&dst.dst).try_into().unwrap(),
|
||||
msg_iov: iovs.as_mut_ptr(),
|
||||
msg_iovlen: iovs.len(),
|
||||
msg_control: safe_cast(&mut control),
|
||||
msg_controllen: mem::size_of_val(&control),
|
||||
msg_flags: 0,
|
||||
};
|
||||
|
||||
let ret = unsafe { libc::sendmsg(fd, &hdr, 0) };
|
||||
|
||||
if ret < 0 {
|
||||
if errno() == libc::EINVAL {
|
||||
log::trace!("clear source and retry");
|
||||
hdr.msg_control = ptr::null_mut();
|
||||
hdr.msg_controllen = 0;
|
||||
dst.info = unsafe { mem::zeroed() };
|
||||
if unsafe { libc::sendmsg(fd, &hdr, 0) } < 0 {
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::NotConnected,
|
||||
"failed to send IPv4 packet",
|
||||
));
|
||||
} else {
|
||||
return Ok(());
|
||||
}
|
||||
}
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::NotConnected,
|
||||
"failed to send IPv4 packet",
|
||||
));
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
impl Writer<LinuxEndpoint> for LinuxUDPWriter {
|
||||
type Error = io::Error;
|
||||
|
||||
fn write(&self, buf: &[u8], dst: &mut LinuxEndpoint) -> Result<(), Self::Error> {
|
||||
match dst {
|
||||
LinuxEndpoint::V4(ref mut end) => Self::write4(self.sock4, buf, end),
|
||||
LinuxEndpoint::V6(ref mut end) => Self::write6(self.sock6, buf, end),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -43,42 +436,248 @@ impl Owner for LinuxOwner {
|
||||
type Error = io::Error;
|
||||
|
||||
fn get_port(&self) -> u16 {
|
||||
self.0.local_addr().unwrap().port() // todo handle
|
||||
self.port
|
||||
}
|
||||
|
||||
fn get_fwmark(&self) -> Option<u32> {
|
||||
None
|
||||
}
|
||||
|
||||
fn set_fwmark(&mut self, _value: Option<u32>) -> Result<(), Self::Error> {
|
||||
fn set_fwmark(&mut self, value: Option<u32>) -> Result<(), Self::Error> {
|
||||
fn set_mark(fd: Option<RawFd>, value: u32) -> Result<(), io::Error> {
|
||||
if let Some(fd) = fd {
|
||||
setsockopt(fd, libc::SOL_SOCKET, libc::SO_MARK, &value)
|
||||
} else {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
let value = value.unwrap_or(0);
|
||||
set_mark(self.sock6, value)?;
|
||||
set_mark(self.sock4, value)
|
||||
}
|
||||
}
|
||||
|
||||
impl Drop for LinuxOwner {
|
||||
fn drop(&mut self) {
|
||||
// TODO: close udp bind
|
||||
log::trace!("closing the bind (port {})", self.port);
|
||||
self.sock4.map(|fd| unsafe {
|
||||
libc::shutdown(fd, libc::SHUT_RDWR);
|
||||
libc::close(fd)
|
||||
});
|
||||
self.sock6.map(|fd| unsafe {
|
||||
libc::shutdown(fd, libc::SHUT_RDWR);
|
||||
libc::close(fd)
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
impl UDP for LinuxUDP {
|
||||
type Error = io::Error;
|
||||
type Endpoint = SocketAddr;
|
||||
type Reader = Self;
|
||||
type Writer = Self;
|
||||
type Endpoint = LinuxEndpoint;
|
||||
type Reader = LinuxUDPReader;
|
||||
type Writer = LinuxUDPWriter;
|
||||
}
|
||||
|
||||
impl LinuxUDP {
|
||||
/* Bind on all IPv6 interfaces
|
||||
*
|
||||
* Arguments:
|
||||
*
|
||||
* - 'port', port to bind to (0 = any)
|
||||
*
|
||||
* Returns:
|
||||
*
|
||||
* Returns a tuple of the resulting port and socket.
|
||||
*/
|
||||
fn bind6(port: u16) -> Result<(u16, RawFd), io::Error> {
|
||||
log::trace!("attempting to bind on IPv6 (port {})", port);
|
||||
|
||||
// create socket fd
|
||||
let fd: RawFd = unsafe { libc::socket(libc::AF_INET6, libc::SOCK_DGRAM, 0) };
|
||||
if fd < 0 {
|
||||
log::debug!("failed to create IPv6 socket");
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::Other,
|
||||
"failed to create socket",
|
||||
));
|
||||
}
|
||||
|
||||
setsockopt_int(fd, libc::SOL_SOCKET, libc::SO_REUSEADDR, 1)?;
|
||||
setsockopt_int(fd, libc::IPPROTO_IPV6, libc::IPV6_RECVPKTINFO, 1)?;
|
||||
setsockopt_int(fd, libc::IPPROTO_IPV6, libc::IPV6_V6ONLY, 1)?;
|
||||
|
||||
// bind
|
||||
let mut sockaddr = libc::sockaddr_in6 {
|
||||
sin6_addr: libc::in6_addr { s6_addr: [0; 16] },
|
||||
sin6_family: libc::AF_INET6 as libc::sa_family_t,
|
||||
sin6_port: port.to_be(), // convert to network (big-endian) byteorder
|
||||
sin6_scope_id: 0,
|
||||
sin6_flowinfo: 0,
|
||||
};
|
||||
|
||||
let err = unsafe {
|
||||
libc::bind(
|
||||
fd,
|
||||
mem::transmute(&sockaddr as *const libc::sockaddr_in6),
|
||||
mem::size_of_val(&sockaddr).try_into().unwrap(),
|
||||
)
|
||||
};
|
||||
|
||||
if err != 0 {
|
||||
log::debug!("failed to bind IPv6 socket");
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::Other,
|
||||
"failed to create socket",
|
||||
));
|
||||
}
|
||||
|
||||
// get the assigned port
|
||||
let mut socklen: libc::socklen_t = mem::size_of_val(&sockaddr).try_into().unwrap();
|
||||
let err = unsafe {
|
||||
libc::getsockname(
|
||||
fd,
|
||||
mem::transmute(&mut sockaddr as *mut libc::sockaddr_in6),
|
||||
&mut socklen as *mut libc::socklen_t,
|
||||
)
|
||||
};
|
||||
if err != 0 {
|
||||
log::debug!("failed to get port of IPv6 socket");
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::Other,
|
||||
"failed to create socket",
|
||||
));
|
||||
}
|
||||
|
||||
// basic sanity checks
|
||||
let new_port = u16::from_be(sockaddr.sin6_port);
|
||||
debug_assert_eq!(socklen, mem::size_of::<libc::sockaddr_in6>() as u32);
|
||||
debug_assert_eq!(sockaddr.sin6_family, libc::AF_INET6 as libc::sa_family_t);
|
||||
debug_assert_eq!(new_port, if port != 0 { port } else { new_port });
|
||||
log::trace!("bound IPv6 socket (port {}, fd {})", new_port, fd);
|
||||
return Ok((new_port, fd));
|
||||
}
|
||||
|
||||
/* Bind on all IPv4 interfaces.
|
||||
*
|
||||
* Arguments:
|
||||
*
|
||||
* - 'port', port to bind to (0 = any)
|
||||
*
|
||||
* Returns:
|
||||
*
|
||||
* Returns a tuple of the resulting port and socket.
|
||||
*/
|
||||
fn bind4(port: u16) -> Result<(u16, RawFd), io::Error> {
|
||||
log::trace!("attempting to bind on IPv4 (port {})", port);
|
||||
|
||||
// create socket fd
|
||||
let fd: RawFd = unsafe { libc::socket(libc::AF_INET, libc::SOCK_DGRAM, 0) };
|
||||
if fd < 0 {
|
||||
log::trace!("failed to create IPv4 socket (errno = {})", errno());
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::Other,
|
||||
"failed to create socket",
|
||||
));
|
||||
}
|
||||
|
||||
setsockopt_int(fd, libc::SOL_SOCKET, libc::SO_REUSEADDR, 1)?;
|
||||
setsockopt_int(fd, libc::IPPROTO_IP, libc::IP_PKTINFO, 1)?;
|
||||
|
||||
const INADDR_ANY: libc::in_addr = libc::in_addr { s_addr: 0 };
|
||||
|
||||
// bind
|
||||
let mut sockaddr = libc::sockaddr_in {
|
||||
sin_addr: INADDR_ANY,
|
||||
sin_family: libc::AF_INET as libc::sa_family_t,
|
||||
sin_port: port.to_be(),
|
||||
sin_zero: [0; 8],
|
||||
};
|
||||
|
||||
let err = unsafe {
|
||||
libc::bind(
|
||||
fd,
|
||||
mem::transmute(&sockaddr as *const libc::sockaddr_in),
|
||||
mem::size_of_val(&sockaddr).try_into().unwrap(),
|
||||
)
|
||||
};
|
||||
|
||||
if err != 0 {
|
||||
log::trace!("failed to bind IPv4 socket (errno = {})", errno());
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::Other,
|
||||
"failed to create socket",
|
||||
));
|
||||
}
|
||||
|
||||
// get the assigned port
|
||||
let mut socklen: libc::socklen_t = mem::size_of_val(&sockaddr).try_into().unwrap();
|
||||
let err = unsafe {
|
||||
libc::getsockname(
|
||||
fd,
|
||||
mem::transmute(&mut sockaddr as *mut libc::sockaddr_in),
|
||||
&mut socklen as *mut libc::socklen_t,
|
||||
)
|
||||
};
|
||||
if err != 0 {
|
||||
log::trace!("failed to get port of IPv4 socket (errno = {})", errno());
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::Other,
|
||||
"failed to create socket",
|
||||
));
|
||||
}
|
||||
|
||||
// basic sanity checks
|
||||
let new_port = u16::from_be(sockaddr.sin_port);
|
||||
debug_assert_eq!(socklen, mem::size_of::<libc::sockaddr_in>() as u32);
|
||||
debug_assert_eq!(sockaddr.sin_family, libc::AF_INET as libc::sa_family_t);
|
||||
debug_assert_eq!(new_port, if port != 0 { port } else { new_port });
|
||||
log::trace!("bound IPv4 socket (port {}, fd {})", new_port, fd);
|
||||
return Ok((new_port, fd));
|
||||
}
|
||||
}
|
||||
|
||||
impl PlatformUDP for LinuxUDP {
|
||||
type Owner = LinuxOwner;
|
||||
|
||||
fn bind(port: u16) -> Result<(Vec<Self::Reader>, Self::Writer, Self::Owner), Self::Error> {
|
||||
let socket = UdpSocket::bind(format!("0.0.0.0:{}", port))?;
|
||||
let socket = Arc::new(socket);
|
||||
fn bind(mut port: u16) -> Result<(Vec<Self::Reader>, Self::Writer, Self::Owner), Self::Error> {
|
||||
log::debug!("bind to port {}", port);
|
||||
|
||||
Ok((
|
||||
vec![LinuxUDP(socket.clone())],
|
||||
LinuxUDP(socket.clone()),
|
||||
LinuxOwner(socket),
|
||||
))
|
||||
// attempt to bind on ipv6
|
||||
let bind6 = Self::bind6(port);
|
||||
if let Ok((new_port, _)) = bind6 {
|
||||
port = new_port;
|
||||
}
|
||||
|
||||
// attempt to bind on ipv4 on the same port
|
||||
let bind4 = Self::bind4(port);
|
||||
if let Ok((new_port, _)) = bind4 {
|
||||
port = new_port;
|
||||
}
|
||||
|
||||
// check if failed to bind on both
|
||||
if bind4.is_err() && bind6.is_err() {
|
||||
log::trace!("failed to bind for either IP version");
|
||||
return Err(bind6.unwrap_err());
|
||||
}
|
||||
|
||||
let sock6 = bind6.ok().map(|(_, fd)| fd);
|
||||
let sock4 = bind4.ok().map(|(_, fd)| fd);
|
||||
|
||||
// create owner
|
||||
let owner = LinuxOwner {
|
||||
port,
|
||||
sock6: sock6,
|
||||
sock4: sock4,
|
||||
};
|
||||
|
||||
// create readers
|
||||
let mut readers: Vec<Self::Reader> = Vec::with_capacity(2);
|
||||
sock6.map(|sock| readers.push(LinuxUDPReader::V6(sock)));
|
||||
sock4.map(|sock| readers.push(LinuxUDPReader::V4(sock)));
|
||||
debug_assert!(readers.len() > 0);
|
||||
|
||||
// create writer
|
||||
let writer = LinuxUDPWriter {
|
||||
sock4: sock4.unwrap_or(-1),
|
||||
sock6: sock6.unwrap_or(-1),
|
||||
};
|
||||
|
||||
Ok((readers, writer, owner))
|
||||
}
|
||||
}
|
||||
|
||||
@@ -10,7 +10,7 @@ pub trait Reader<E: Endpoint>: Send + Sync {
|
||||
pub trait Writer<E: Endpoint>: Send + Sync + Clone + 'static {
|
||||
type Error: Error;
|
||||
|
||||
fn write(&self, buf: &[u8], dst: &E) -> Result<(), Self::Error>;
|
||||
fn write(&self, buf: &[u8], dst: &mut E) -> Result<(), Self::Error>;
|
||||
}
|
||||
|
||||
pub trait UDP: Send + Sync + 'static {
|
||||
@@ -30,8 +30,6 @@ pub trait Owner: Send {
|
||||
|
||||
fn get_port(&self) -> u16;
|
||||
|
||||
fn get_fwmark(&self) -> Option<u32>;
|
||||
|
||||
fn set_fwmark(&mut self, value: Option<u32>) -> Result<(), Self::Error>;
|
||||
}
|
||||
|
||||
|
||||
@@ -1,4 +1,5 @@
|
||||
use spin::RwLock;
|
||||
use std::collections::hash_map;
|
||||
use std::collections::HashMap;
|
||||
use std::net::SocketAddr;
|
||||
use std::sync::Mutex;
|
||||
@@ -6,7 +7,10 @@ use zerocopy::AsBytes;
|
||||
|
||||
use byteorder::{ByteOrder, LittleEndian};
|
||||
|
||||
use rand::prelude::*;
|
||||
use rand::Rng;
|
||||
use rand_core::{CryptoRng, RngCore};
|
||||
|
||||
use clear_on_drop::clear::Clear;
|
||||
|
||||
use x25519_dalek::PublicKey;
|
||||
use x25519_dalek::StaticSecret;
|
||||
@@ -22,42 +26,101 @@ use super::types::*;
|
||||
const MAX_PEER_PER_DEVICE: usize = 1 << 20;
|
||||
|
||||
pub struct KeyState {
|
||||
pub sk: StaticSecret, // static secret key
|
||||
pub pk: PublicKey, // static public key
|
||||
pub(super) sk: StaticSecret, // static secret key
|
||||
pub(super) pk: PublicKey, // static public key
|
||||
macs: macs::Validator, // validator for the mac fields
|
||||
}
|
||||
|
||||
pub struct Device {
|
||||
keyst: Option<KeyState>, // secret/public key
|
||||
pk_map: HashMap<[u8; 32], Peer>, // public key -> peer state
|
||||
id_map: RwLock<HashMap<u32, [u8; 32]>>, // receiver ids -> public key
|
||||
/// The device is generic over an "opaque" type
|
||||
/// which can be used to associate the public key with this value.
|
||||
/// (the instance is a Peer object in the parent module)
|
||||
pub struct Device<O> {
|
||||
keyst: Option<KeyState>,
|
||||
id_map: RwLock<HashMap<u32, [u8; 32]>>,
|
||||
pk_map: HashMap<[u8; 32], Peer<O>>,
|
||||
limiter: Mutex<RateLimiter>,
|
||||
}
|
||||
|
||||
pub struct Iter<'a, O> {
|
||||
iter: hash_map::Iter<'a, [u8; 32], Peer<O>>,
|
||||
}
|
||||
|
||||
impl<'a, O> Iterator for Iter<'a, O> {
|
||||
type Item = (PublicKey, &'a O);
|
||||
|
||||
fn next(&mut self) -> Option<Self::Item> {
|
||||
self.iter
|
||||
.next()
|
||||
.map(|(pk, peer)| (PublicKey::from(*pk), &peer.opaque))
|
||||
}
|
||||
}
|
||||
|
||||
/* These methods enable the Device to act as a map
|
||||
* from public keys to the set of contained opaque values.
|
||||
*
|
||||
* It also abstracts away the problem of PublicKey not being hashable.
|
||||
*/
|
||||
impl<O> Device<O> {
|
||||
pub fn clear(&mut self) {
|
||||
self.id_map.write().clear();
|
||||
self.pk_map.clear();
|
||||
}
|
||||
|
||||
pub fn len(&self) -> usize {
|
||||
self.pk_map.len()
|
||||
}
|
||||
|
||||
/// Enables enumeration of (public key, opaque) pairs
|
||||
/// without exposing internal peer type.
|
||||
pub fn iter(&self) -> Iter<O> {
|
||||
Iter {
|
||||
iter: self.pk_map.iter(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Enables lookup by public key without exposing internal peer type.
|
||||
pub fn get(&self, pk: &PublicKey) -> Option<&O> {
|
||||
self.pk_map.get(pk.as_bytes()).map(|peer| &peer.opaque)
|
||||
}
|
||||
|
||||
pub fn contains_key(&self, pk: &PublicKey) -> bool {
|
||||
self.pk_map.contains_key(pk.as_bytes())
|
||||
}
|
||||
}
|
||||
|
||||
/* A mutable reference to the device needs to be held during configuration.
|
||||
* Wrapping the device in a RwLock enables peer config after "configuration time"
|
||||
*/
|
||||
impl Device {
|
||||
impl<O> Device<O> {
|
||||
/// Initialize a new handshake state machine
|
||||
pub fn new() -> Device {
|
||||
pub fn new() -> Device<O> {
|
||||
Device {
|
||||
keyst: None,
|
||||
pk_map: HashMap::new(),
|
||||
id_map: RwLock::new(HashMap::new()),
|
||||
pk_map: HashMap::new(),
|
||||
limiter: Mutex::new(RateLimiter::new()),
|
||||
}
|
||||
}
|
||||
|
||||
fn update_ss(&self, peer: &mut Peer) -> Option<PublicKey> {
|
||||
fn update_ss(&mut self) -> (Vec<u32>, Option<PublicKey>) {
|
||||
let mut same = None;
|
||||
let mut ids = Vec::with_capacity(self.pk_map.len());
|
||||
for (pk, peer) in self.pk_map.iter_mut() {
|
||||
if let Some(key) = self.keyst.as_ref() {
|
||||
if *peer.pk.as_bytes() == *key.pk.as_bytes() {
|
||||
return Some(peer.pk);
|
||||
}
|
||||
peer.ss = *key.sk.diffie_hellman(&peer.pk).as_bytes();
|
||||
if key.pk.as_bytes() == pk {
|
||||
same = Some(PublicKey::from(*pk));
|
||||
peer.ss.clear()
|
||||
} else {
|
||||
peer.ss = [0u8; 32];
|
||||
};
|
||||
None
|
||||
let pk = PublicKey::from(*pk);
|
||||
peer.ss = *key.sk.diffie_hellman(&pk).as_bytes();
|
||||
}
|
||||
} else {
|
||||
peer.ss.clear();
|
||||
}
|
||||
peer.reset_state().map(|id| ids.push(id));
|
||||
}
|
||||
|
||||
(ids, same)
|
||||
}
|
||||
|
||||
/// Update the secret key of the device
|
||||
@@ -74,29 +137,15 @@ impl Device {
|
||||
});
|
||||
|
||||
// recalculate / erase the shared secrets for every peer
|
||||
let mut ids = vec![];
|
||||
let mut same = None;
|
||||
for mut peer in self.pk_map.values_mut() {
|
||||
// clear any existing handshake state
|
||||
peer.reset_state().map(|id| ids.push(id));
|
||||
|
||||
// update precomputed shared secret
|
||||
if let Some(key) = self.keyst.as_ref() {
|
||||
peer.ss = *key.sk.diffie_hellman(&peer.pk).as_bytes();
|
||||
if *peer.pk.as_bytes() == *key.pk.as_bytes() {
|
||||
same = Some(peer.pk)
|
||||
}
|
||||
} else {
|
||||
peer.ss = [0u8; 32];
|
||||
};
|
||||
}
|
||||
let (ids, same) = self.update_ss();
|
||||
|
||||
// release ids from aborted handshakes
|
||||
for id in ids {
|
||||
self.release(id)
|
||||
}
|
||||
|
||||
// if we found a peer matching the device public key, remove it.
|
||||
// if we found a peer matching the device public key
|
||||
// remove it and return its value to the caller
|
||||
same.map(|pk| {
|
||||
self.pk_map.remove(pk.as_bytes());
|
||||
pk
|
||||
@@ -119,30 +168,33 @@ impl Device {
|
||||
///
|
||||
/// * `pk` - The public key to add
|
||||
/// * `identifier` - Associated identifier which can be used to distinguish the peers
|
||||
pub fn add(&mut self, pk: PublicKey) -> Result<(), ConfigError> {
|
||||
pub fn add(&mut self, pk: PublicKey, opaque: O) -> Result<(), ConfigError> {
|
||||
// ensure less than 2^20 peers
|
||||
if self.pk_map.len() > MAX_PEER_PER_DEVICE {
|
||||
return Err(ConfigError::new("Too many peers for device"));
|
||||
}
|
||||
|
||||
// create peer and precompute static secret
|
||||
let mut peer = Peer::new(
|
||||
// error if public key matches device
|
||||
if let Some(key) = self.keyst.as_ref() {
|
||||
if pk.as_bytes() == key.pk.as_bytes() {
|
||||
return Err(ConfigError::new("Public key of peer matches the device"));
|
||||
}
|
||||
}
|
||||
|
||||
// pre-compute shared secret and add to pk_map
|
||||
self.pk_map.insert(
|
||||
*pk.as_bytes(),
|
||||
Peer::new(
|
||||
pk,
|
||||
self.keyst
|
||||
.as_ref()
|
||||
.map(|key| *key.sk.diffie_hellman(&pk).as_bytes())
|
||||
.unwrap_or([0u8; 32]),
|
||||
opaque,
|
||||
),
|
||||
);
|
||||
|
||||
// add peer to device
|
||||
match self.update_ss(&mut peer) {
|
||||
Some(_) => Err(ConfigError::new("Public key of peer matches the device")),
|
||||
None => {
|
||||
self.pk_map.insert(*pk.as_bytes(), peer);
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Remove a peer by public key
|
||||
/// To remove public keys, you must create a new machine instance
|
||||
@@ -163,7 +215,7 @@ impl Device {
|
||||
.remove(pk.as_bytes())
|
||||
.ok_or(ConfigError::new("Public key not in device"))?;
|
||||
|
||||
// pruge the id map (linear scan)
|
||||
// purge the id map (linear scan)
|
||||
id_map.retain(|_, v| v != pk.as_bytes());
|
||||
Ok(())
|
||||
}
|
||||
@@ -231,11 +283,11 @@ impl Device {
|
||||
(_, None) => Err(HandshakeError::UnknownPublicKey),
|
||||
(None, _) => Err(HandshakeError::UnknownPublicKey),
|
||||
(Some(keyst), Some(peer)) => {
|
||||
let local = self.allocate(rng, peer);
|
||||
let local = self.allocate(rng, pk);
|
||||
let mut msg = Initiation::default();
|
||||
|
||||
// create noise part of initation
|
||||
noise::create_initiation(rng, keyst, peer, local, &mut msg.noise)?;
|
||||
noise::create_initiation(rng, keyst, peer, pk, local, &mut msg.noise)?;
|
||||
|
||||
// add macs to initation
|
||||
peer.macs
|
||||
@@ -253,11 +305,11 @@ impl Device {
|
||||
///
|
||||
/// * `msg` - Byte slice containing the message (untrusted input)
|
||||
pub fn process<'a, R: RngCore + CryptoRng>(
|
||||
&self,
|
||||
&'a self,
|
||||
rng: &mut R, // rng instance to sample randomness from
|
||||
msg: &[u8], // message buffer
|
||||
src: Option<SocketAddr>, // optional source endpoint, set when "under load"
|
||||
) -> Result<Output, HandshakeError> {
|
||||
) -> Result<Output<'a, O>, HandshakeError> {
|
||||
// ensure type read in-range
|
||||
if msg.len() < 4 {
|
||||
return Err(HandshakeError::InvalidMessageFormat);
|
||||
@@ -303,17 +355,17 @@ impl Device {
|
||||
}
|
||||
|
||||
// consume the initiation
|
||||
let (peer, st) = noise::consume_initiation(self, keyst, &msg.noise)?;
|
||||
let (peer, pk, st) = noise::consume_initiation(self, keyst, &msg.noise)?;
|
||||
|
||||
// allocate new index for response
|
||||
let local = self.allocate(rng, peer);
|
||||
let local = self.allocate(rng, &pk);
|
||||
|
||||
// prepare memory for response, TODO: take slice for zero allocation
|
||||
let mut resp = Response::default();
|
||||
|
||||
// create response (release id on error)
|
||||
let keys =
|
||||
noise::create_response(rng, peer, local, st, &mut resp.noise).map_err(|e| {
|
||||
let keys = noise::create_response(rng, peer, &pk, local, st, &mut resp.noise)
|
||||
.map_err(|e| {
|
||||
self.release(local);
|
||||
e
|
||||
})?;
|
||||
@@ -324,7 +376,11 @@ impl Device {
|
||||
.generate(resp.noise.as_bytes(), &mut resp.macs);
|
||||
|
||||
// return unconfirmed keypair and the response as vector
|
||||
Ok((Some(peer.pk), Some(resp.as_bytes().to_owned()), Some(keys)))
|
||||
Ok((
|
||||
Some(&peer.opaque),
|
||||
Some(resp.as_bytes().to_owned()),
|
||||
Some(keys),
|
||||
))
|
||||
}
|
||||
TYPE_RESPONSE => {
|
||||
let msg = Response::parse(msg)?;
|
||||
@@ -363,7 +419,7 @@ impl Device {
|
||||
let msg = CookieReply::parse(msg)?;
|
||||
|
||||
// lookup peer
|
||||
let peer = self.lookup_id(msg.f_receiver.get())?;
|
||||
let (peer, _) = self.lookup_id(msg.f_receiver.get())?;
|
||||
|
||||
// validate cookie reply
|
||||
peer.macs.lock().process(&msg)?;
|
||||
@@ -379,7 +435,7 @@ impl Device {
|
||||
// Internal function
|
||||
//
|
||||
// Return the peer associated with the public key
|
||||
pub(crate) fn lookup_pk(&self, pk: &PublicKey) -> Result<&Peer, HandshakeError> {
|
||||
pub(super) fn lookup_pk(&self, pk: &PublicKey) -> Result<&Peer<O>, HandshakeError> {
|
||||
self.pk_map
|
||||
.get(pk.as_bytes())
|
||||
.ok_or(HandshakeError::UnknownPublicKey)
|
||||
@@ -388,11 +444,11 @@ impl Device {
|
||||
// Internal function
|
||||
//
|
||||
// Return the peer currently associated with the receiver identifier
|
||||
pub(crate) fn lookup_id(&self, id: u32) -> Result<&Peer, HandshakeError> {
|
||||
pub(super) fn lookup_id(&self, id: u32) -> Result<(&Peer<O>, PublicKey), HandshakeError> {
|
||||
let im = self.id_map.read();
|
||||
let pk = im.get(&id).ok_or(HandshakeError::UnknownReceiverId)?;
|
||||
match self.pk_map.get(pk) {
|
||||
Some(peer) => Ok(peer),
|
||||
Some(peer) => Ok((peer, PublicKey::from(*pk))),
|
||||
_ => unreachable!(), // if the id-lookup succeeded, the peer should exist
|
||||
}
|
||||
}
|
||||
@@ -400,7 +456,7 @@ impl Device {
|
||||
// Internal function
|
||||
//
|
||||
// Allocated a new receiver identifier for the peer
|
||||
fn allocate<R: RngCore + CryptoRng>(&self, rng: &mut R, peer: &Peer) -> u32 {
|
||||
fn allocate<R: RngCore + CryptoRng>(&self, rng: &mut R, pk: &PublicKey) -> u32 {
|
||||
loop {
|
||||
let id = rng.gen();
|
||||
|
||||
@@ -412,7 +468,7 @@ impl Device {
|
||||
// take write lock and add index
|
||||
let mut m = self.id_map.write();
|
||||
if !m.contains_key(&id) {
|
||||
m.insert(id, *peer.pk.as_bytes());
|
||||
m.insert(id, *pk.as_bytes());
|
||||
return id;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -286,8 +286,7 @@ mod tests {
|
||||
use x25519_dalek::StaticSecret;
|
||||
|
||||
fn new_validator_generator() -> (Validator, Generator) {
|
||||
let mut rng = OsRng::new().unwrap();
|
||||
let sk = StaticSecret::new(&mut rng);
|
||||
let sk = StaticSecret::new(&mut OsRng);
|
||||
let pk = PublicKey::from(&sk);
|
||||
(Validator::new(pk), Generator::new(pk))
|
||||
}
|
||||
@@ -296,7 +295,6 @@ mod tests {
|
||||
#[test]
|
||||
fn test_cookie_reply(inner1 : Vec<u8>, inner2 : Vec<u8>, receiver : u32) {
|
||||
let mut msg = CookieReply::default();
|
||||
let mut rng = OsRng::new().expect("failed to create rng");
|
||||
let mut macs = MacsFooter::default();
|
||||
let src = "192.0.2.16:8080".parse().unwrap();
|
||||
let (validator, mut generator) = new_validator_generator();
|
||||
@@ -309,7 +307,7 @@ mod tests {
|
||||
// check validity of mac1
|
||||
validator.check_mac1(&inner1[..], &macs).expect("mac1 of inner1 did not validate");
|
||||
assert_eq!(validator.check_mac2(&inner1[..], &src, &macs), false, "mac2 of inner2 did not validate");
|
||||
validator.create_cookie_reply(&mut rng, receiver, &src, &macs, &mut msg);
|
||||
validator.create_cookie_reply(&mut OsRng, receiver, &src, &macs, &mut msg);
|
||||
|
||||
// consume cookie reply
|
||||
generator.process(&msg).expect("failed to process CookieReply");
|
||||
|
||||
@@ -10,7 +10,7 @@ use hmac::Hmac;
|
||||
use aead::{Aead, NewAead, Payload};
|
||||
use chacha20poly1305::ChaCha20Poly1305;
|
||||
|
||||
use rand::{CryptoRng, RngCore};
|
||||
use rand_core::{CryptoRng, RngCore};
|
||||
|
||||
use log::debug;
|
||||
|
||||
@@ -215,20 +215,21 @@ mod tests {
|
||||
}
|
||||
}
|
||||
|
||||
pub fn create_initiation<R: RngCore + CryptoRng>(
|
||||
pub(super) fn create_initiation<R: RngCore + CryptoRng, O>(
|
||||
rng: &mut R,
|
||||
keyst: &KeyState,
|
||||
peer: &Peer,
|
||||
peer: &Peer<O>,
|
||||
pk: &PublicKey,
|
||||
local: u32,
|
||||
msg: &mut NoiseInitiation,
|
||||
) -> Result<(), HandshakeError> {
|
||||
debug!("create initation");
|
||||
debug!("create initiation");
|
||||
clear_stack_on_return(CLEAR_PAGES, || {
|
||||
// initialize state
|
||||
|
||||
let ck = INITIAL_CK;
|
||||
let hs = INITIAL_HS;
|
||||
let hs = HASH!(&hs, peer.pk.as_bytes());
|
||||
let hs = HASH!(&hs, pk.as_bytes());
|
||||
|
||||
msg.f_type.set(TYPE_INITIATION as u32);
|
||||
msg.f_sender.set(local); // from us
|
||||
@@ -252,7 +253,7 @@ pub fn create_initiation<R: RngCore + CryptoRng>(
|
||||
|
||||
// (C, k) := Kdf2(C, DH(E_priv, S_pub))
|
||||
|
||||
let (ck, key) = KDF2!(&ck, eph_sk.diffie_hellman(&peer.pk).as_bytes());
|
||||
let (ck, key) = KDF2!(&ck, eph_sk.diffie_hellman(&pk).as_bytes());
|
||||
|
||||
// msg.static := Aead(k, 0, S_pub, H)
|
||||
|
||||
@@ -297,12 +298,12 @@ pub fn create_initiation<R: RngCore + CryptoRng>(
|
||||
})
|
||||
}
|
||||
|
||||
pub fn consume_initiation<'a>(
|
||||
device: &'a Device,
|
||||
pub(super) fn consume_initiation<'a, O>(
|
||||
device: &'a Device<O>,
|
||||
keyst: &KeyState,
|
||||
msg: &NoiseInitiation,
|
||||
) -> Result<(&'a Peer, TemporaryState), HandshakeError> {
|
||||
debug!("consume initation");
|
||||
) -> Result<(&'a Peer<O>, PublicKey, TemporaryState), HandshakeError> {
|
||||
debug!("consume initiation");
|
||||
clear_stack_on_return(CLEAR_PAGES, || {
|
||||
// initialize new state
|
||||
|
||||
@@ -369,13 +370,18 @@ pub fn consume_initiation<'a>(
|
||||
|
||||
// return state (to create response)
|
||||
|
||||
Ok((peer, (msg.f_sender.get(), eph_r_pk, hs, ck)))
|
||||
Ok((
|
||||
peer,
|
||||
PublicKey::from(pk),
|
||||
(msg.f_sender.get(), eph_r_pk, hs, ck),
|
||||
))
|
||||
})
|
||||
}
|
||||
|
||||
pub fn create_response<R: RngCore + CryptoRng>(
|
||||
pub(super) fn create_response<R: RngCore + CryptoRng, O>(
|
||||
rng: &mut R,
|
||||
peer: &Peer,
|
||||
peer: &Peer<O>,
|
||||
pk: &PublicKey,
|
||||
local: u32, // sending identifier
|
||||
state: TemporaryState, // state from "consume_initiation"
|
||||
msg: &mut NoiseResponse, // resulting response
|
||||
@@ -388,7 +394,7 @@ pub fn create_response<R: RngCore + CryptoRng>(
|
||||
|
||||
msg.f_type.set(TYPE_RESPONSE as u32);
|
||||
msg.f_sender.set(local); // from us
|
||||
msg.f_receiver.set(receiver); // to the sender of the initation
|
||||
msg.f_receiver.set(receiver); // to the sender of the initiation
|
||||
|
||||
// (E_priv, E_pub) := DH-Generate()
|
||||
|
||||
@@ -413,7 +419,7 @@ pub fn create_response<R: RngCore + CryptoRng>(
|
||||
|
||||
// C := Kdf1(C, DH(E_priv, S_pub))
|
||||
|
||||
let ck = KDF1!(&ck, eph_sk.diffie_hellman(&peer.pk).as_bytes());
|
||||
let ck = KDF1!(&ck, eph_sk.diffie_hellman(&pk).as_bytes());
|
||||
|
||||
// (C, tau, k) := Kdf3(C, Q)
|
||||
|
||||
@@ -460,15 +466,15 @@ pub fn create_response<R: RngCore + CryptoRng>(
|
||||
* allow concurrent processing of potential responses to the initiation,
|
||||
* in order to better mitigate DoS from malformed response messages.
|
||||
*/
|
||||
pub fn consume_response(
|
||||
device: &Device,
|
||||
pub(super) fn consume_response<'a, O>(
|
||||
device: &'a Device<O>,
|
||||
keyst: &KeyState,
|
||||
msg: &NoiseResponse,
|
||||
) -> Result<Output, HandshakeError> {
|
||||
) -> Result<Output<'a, O>, HandshakeError> {
|
||||
debug!("consume response");
|
||||
clear_stack_on_return(CLEAR_PAGES, || {
|
||||
// retrieve peer and copy initiation state
|
||||
let peer = device.lookup_id(msg.f_receiver.get())?;
|
||||
let (peer, _) = device.lookup_id(msg.f_receiver.get())?;
|
||||
|
||||
let (hs, ck, local, eph_sk) = match *peer.state.lock() {
|
||||
State::InitiationSent {
|
||||
@@ -537,7 +543,7 @@ pub fn consume_response(
|
||||
|
||||
// return confirmed key-pair
|
||||
Ok((
|
||||
Some(peer.pk),
|
||||
Some(&peer.opaque),
|
||||
None,
|
||||
Some(KeyPair {
|
||||
birth,
|
||||
|
||||
@@ -22,19 +22,21 @@ const TIME_BETWEEN_INITIATIONS: Duration = Duration::from_millis(20);
|
||||
*
|
||||
* This type is only for internal use and not exposed.
|
||||
*/
|
||||
pub struct Peer {
|
||||
pub(super) struct Peer<O> {
|
||||
// opaque type which identifies a peer
|
||||
pub opaque: O,
|
||||
|
||||
// mutable state
|
||||
pub(crate) state: Mutex<State>,
|
||||
pub(crate) timestamp: Mutex<Option<timestamp::TAI64N>>,
|
||||
pub(crate) last_initiation_consumption: Mutex<Option<Instant>>,
|
||||
pub state: Mutex<State>,
|
||||
pub timestamp: Mutex<Option<timestamp::TAI64N>>,
|
||||
pub last_initiation_consumption: Mutex<Option<Instant>>,
|
||||
|
||||
// state related to DoS mitigation fields
|
||||
pub(crate) macs: Mutex<macs::Generator>,
|
||||
pub macs: Mutex<macs::Generator>,
|
||||
|
||||
// constant state
|
||||
pub(crate) pk: PublicKey, // public key of peer
|
||||
pub(crate) ss: [u8; 32], // precomputed DH(static, static)
|
||||
pub(crate) psk: Psk, // psk of peer
|
||||
pub ss: [u8; 32], // precomputed DH(static, static)
|
||||
pub psk: Psk, // psk of peer
|
||||
}
|
||||
|
||||
pub enum State {
|
||||
@@ -60,14 +62,14 @@ impl Drop for State {
|
||||
}
|
||||
}
|
||||
|
||||
impl Peer {
|
||||
pub fn new(pk: PublicKey, ss: [u8; 32]) -> Self {
|
||||
impl<O> Peer<O> {
|
||||
pub fn new(pk: PublicKey, ss: [u8; 32], opaque: O) -> Self {
|
||||
Self {
|
||||
opaque,
|
||||
macs: Mutex::new(macs::Generator::new(pk)),
|
||||
state: Mutex::new(State::Reset),
|
||||
timestamp: Mutex::new(None),
|
||||
last_initiation_consumption: Mutex::new(None),
|
||||
pk,
|
||||
ss,
|
||||
psk: [0u8; 32],
|
||||
}
|
||||
@@ -88,7 +90,7 @@ impl Peer {
|
||||
/// * ts_new - The associated timestamp
|
||||
pub fn check_replay_flood(
|
||||
&self,
|
||||
device: &Device,
|
||||
device: &Device<O>,
|
||||
timestamp_new: ×tamp::TAI64N,
|
||||
) -> Result<(), HandshakeError> {
|
||||
let mut state = self.state.lock();
|
||||
|
||||
@@ -12,8 +12,10 @@ use x25519_dalek::StaticSecret;
|
||||
|
||||
use super::messages::{Initiation, Response};
|
||||
|
||||
fn setup_devices<R: RngCore + CryptoRng>(rng: &mut R) -> (PublicKey, Device, PublicKey, Device) {
|
||||
// generate new keypairs
|
||||
fn setup_devices<R: RngCore + CryptoRng, O: Default>(
|
||||
rng: &mut R,
|
||||
) -> (PublicKey, Device<O>, PublicKey, Device<O>) {
|
||||
// generate new key pairs
|
||||
|
||||
let sk1 = StaticSecret::new(rng);
|
||||
let pk1 = PublicKey::from(&sk1);
|
||||
@@ -26,7 +28,7 @@ fn setup_devices<R: RngCore + CryptoRng>(rng: &mut R) -> (PublicKey, Device, Pub
|
||||
let mut psk = [0u8; 32];
|
||||
rng.fill_bytes(&mut psk[..]);
|
||||
|
||||
// intialize devices on both ends
|
||||
// initialize devices on both ends
|
||||
|
||||
let mut dev1 = Device::new();
|
||||
let mut dev2 = Device::new();
|
||||
@@ -34,8 +36,8 @@ fn setup_devices<R: RngCore + CryptoRng>(rng: &mut R) -> (PublicKey, Device, Pub
|
||||
dev1.set_sk(Some(sk1));
|
||||
dev2.set_sk(Some(sk2));
|
||||
|
||||
dev1.add(pk2).unwrap();
|
||||
dev2.add(pk1).unwrap();
|
||||
dev1.add(pk2, O::default()).unwrap();
|
||||
dev2.add(pk1, O::default()).unwrap();
|
||||
|
||||
dev1.set_psk(pk2, psk).unwrap();
|
||||
dev2.set_psk(pk1, psk).unwrap();
|
||||
@@ -49,45 +51,44 @@ fn wait() {
|
||||
|
||||
/* Test longest possible handshake interaction (7 messages):
|
||||
*
|
||||
* 1. I -> R (initation)
|
||||
* 1. I -> R (initiation)
|
||||
* 2. I <- R (cookie reply)
|
||||
* 3. I -> R (initation)
|
||||
* 3. I -> R (initiation)
|
||||
* 4. I <- R (response)
|
||||
* 5. I -> R (cookie reply)
|
||||
* 6. I -> R (initation)
|
||||
* 6. I -> R (initiation)
|
||||
* 7. I <- R (response)
|
||||
*/
|
||||
#[test]
|
||||
fn handshake_under_load() {
|
||||
let mut rng = OsRng::new().unwrap();
|
||||
let (_pk1, dev1, pk2, dev2) = setup_devices(&mut rng);
|
||||
let (_pk1, dev1, pk2, dev2): (_, Device<usize>, _, _) = setup_devices(&mut OsRng);
|
||||
|
||||
let src1: SocketAddr = "172.16.0.1:8080".parse().unwrap();
|
||||
let src2: SocketAddr = "172.16.0.2:7070".parse().unwrap();
|
||||
|
||||
// 1. device-1 : create first initation
|
||||
let msg_init = dev1.begin(&mut rng, &pk2).unwrap();
|
||||
// 1. device-1 : create first initiation
|
||||
let msg_init = dev1.begin(&mut OsRng, &pk2).unwrap();
|
||||
|
||||
// 2. device-2 : responds with CookieReply
|
||||
let msg_cookie = match dev2.process(&mut rng, &msg_init, Some(src1)).unwrap() {
|
||||
let msg_cookie = match dev2.process(&mut OsRng, &msg_init, Some(src1)).unwrap() {
|
||||
(None, Some(msg), None) => msg,
|
||||
_ => panic!("unexpected response"),
|
||||
};
|
||||
|
||||
// device-1 : processes CookieReply (no response)
|
||||
match dev1.process(&mut rng, &msg_cookie, Some(src2)).unwrap() {
|
||||
match dev1.process(&mut OsRng, &msg_cookie, Some(src2)).unwrap() {
|
||||
(None, None, None) => (),
|
||||
_ => panic!("unexpected response"),
|
||||
}
|
||||
|
||||
// avoid initation flood detection
|
||||
// avoid initiation flood detection
|
||||
wait();
|
||||
|
||||
// 3. device-1 : create second initation
|
||||
let msg_init = dev1.begin(&mut rng, &pk2).unwrap();
|
||||
// 3. device-1 : create second initiation
|
||||
let msg_init = dev1.begin(&mut OsRng, &pk2).unwrap();
|
||||
|
||||
// 4. device-2 : responds with noise response
|
||||
let msg_response = match dev2.process(&mut rng, &msg_init, Some(src1)).unwrap() {
|
||||
let msg_response = match dev2.process(&mut OsRng, &msg_init, Some(src1)).unwrap() {
|
||||
(Some(_), Some(msg), Some(kp)) => {
|
||||
assert_eq!(kp.initiator, false);
|
||||
msg
|
||||
@@ -96,25 +97,25 @@ fn handshake_under_load() {
|
||||
};
|
||||
|
||||
// 5. device-1 : responds with CookieReply
|
||||
let msg_cookie = match dev1.process(&mut rng, &msg_response, Some(src2)).unwrap() {
|
||||
let msg_cookie = match dev1.process(&mut OsRng, &msg_response, Some(src2)).unwrap() {
|
||||
(None, Some(msg), None) => msg,
|
||||
_ => panic!("unexpected response"),
|
||||
};
|
||||
|
||||
// device-2 : processes CookieReply (no response)
|
||||
match dev2.process(&mut rng, &msg_cookie, Some(src1)).unwrap() {
|
||||
match dev2.process(&mut OsRng, &msg_cookie, Some(src1)).unwrap() {
|
||||
(None, None, None) => (),
|
||||
_ => panic!("unexpected response"),
|
||||
}
|
||||
|
||||
// avoid initation flood detection
|
||||
// avoid initiation flood detection
|
||||
wait();
|
||||
|
||||
// 6. device-1 : create third initation
|
||||
let msg_init = dev1.begin(&mut rng, &pk2).unwrap();
|
||||
// 6. device-1 : create third initiation
|
||||
let msg_init = dev1.begin(&mut OsRng, &pk2).unwrap();
|
||||
|
||||
// 7. device-2 : responds with noise response
|
||||
let (msg_response, kp1) = match dev2.process(&mut rng, &msg_init, Some(src1)).unwrap() {
|
||||
let (msg_response, kp1) = match dev2.process(&mut OsRng, &msg_init, Some(src1)).unwrap() {
|
||||
(Some(_), Some(msg), Some(kp)) => {
|
||||
assert_eq!(kp.initiator, false);
|
||||
(msg, kp)
|
||||
@@ -123,7 +124,7 @@ fn handshake_under_load() {
|
||||
};
|
||||
|
||||
// device-1 : process noise response
|
||||
let kp2 = match dev1.process(&mut rng, &msg_response, Some(src2)).unwrap() {
|
||||
let kp2 = match dev1.process(&mut OsRng, &msg_response, Some(src2)).unwrap() {
|
||||
(Some(_), None, Some(kp)) => {
|
||||
assert_eq!(kp.initiator, true);
|
||||
kp
|
||||
@@ -137,8 +138,7 @@ fn handshake_under_load() {
|
||||
|
||||
#[test]
|
||||
fn handshake_no_load() {
|
||||
let mut rng = OsRng::new().unwrap();
|
||||
let (pk1, mut dev1, pk2, mut dev2) = setup_devices(&mut rng);
|
||||
let (pk1, mut dev1, pk2, mut dev2): (_, Device<usize>, _, _) = setup_devices(&mut OsRng);
|
||||
|
||||
// do a few handshakes (every handshake should succeed)
|
||||
|
||||
@@ -147,7 +147,7 @@ fn handshake_no_load() {
|
||||
|
||||
// create initiation
|
||||
|
||||
let msg1 = dev1.begin(&mut rng, &pk2).unwrap();
|
||||
let msg1 = dev1.begin(&mut OsRng, &pk2).unwrap();
|
||||
|
||||
println!("msg1 = {} : {} bytes", hex::encode(&msg1[..]), msg1.len());
|
||||
println!(
|
||||
@@ -158,7 +158,7 @@ fn handshake_no_load() {
|
||||
// process initiation and create response
|
||||
|
||||
let (_, msg2, ks_r) = dev2
|
||||
.process(&mut rng, &msg1, None)
|
||||
.process(&mut OsRng, &msg1, None)
|
||||
.expect("failed to process initiation");
|
||||
|
||||
let ks_r = ks_r.unwrap();
|
||||
@@ -175,7 +175,7 @@ fn handshake_no_load() {
|
||||
// process response and obtain confirmed key-pair
|
||||
|
||||
let (_, msg3, ks_i) = dev1
|
||||
.process(&mut rng, &msg2, None)
|
||||
.process(&mut OsRng, &msg2, None)
|
||||
.expect("failed to process response");
|
||||
let ks_i = ks_i.unwrap();
|
||||
|
||||
@@ -188,7 +188,7 @@ fn handshake_no_load() {
|
||||
dev1.release(ks_i.local_id());
|
||||
dev2.release(ks_r.local_id());
|
||||
|
||||
// avoid initation flood detection
|
||||
// avoid initiation flood detection
|
||||
wait();
|
||||
}
|
||||
|
||||
|
||||
@@ -1,10 +1,8 @@
|
||||
use super::super::types::KeyPair;
|
||||
|
||||
use std::error::Error;
|
||||
use std::fmt;
|
||||
|
||||
use x25519_dalek::PublicKey;
|
||||
|
||||
use super::super::types::KeyPair;
|
||||
|
||||
/* Internal types for the noise IKpsk2 implementation */
|
||||
|
||||
// config error
|
||||
@@ -79,8 +77,8 @@ impl Error for HandshakeError {
|
||||
}
|
||||
}
|
||||
|
||||
pub type Output = (
|
||||
Option<PublicKey>, // external identifier associated with peer
|
||||
pub type Output<'a, O> = (
|
||||
Option<&'a O>, // external identifier associated with peer
|
||||
Option<Vec<u8>>, // message to send
|
||||
Option<KeyPair>, // resulting key-pair of successful handshake
|
||||
);
|
||||
|
||||
@@ -31,7 +31,7 @@ pub struct PeerInner<T: Tun, B: UDP> {
|
||||
pub handshake_queued: AtomicBool, // is a handshake job currently queued for the peer?
|
||||
|
||||
// stats and configuration
|
||||
pub pk: PublicKey, // public key, DISCUSS: avoid this. TODO: remove
|
||||
pub pk: PublicKey, // public key
|
||||
pub rx_bytes: AtomicU64, // received bytes
|
||||
pub tx_bytes: AtomicU64, // transmitted bytes
|
||||
|
||||
|
||||
@@ -142,7 +142,7 @@ impl<E: Endpoint, C: Callbacks, T: tun::Writer, B: udp::Writer<E>> DeviceHandle<
|
||||
};
|
||||
|
||||
// start worker threads
|
||||
let mut threads = Vec::with_capacity(num_workers);
|
||||
let mut threads = Vec::with_capacity(4 * num_workers);
|
||||
|
||||
// inbound/decryption workers
|
||||
for _ in 0..num_workers {
|
||||
|
||||
@@ -204,7 +204,7 @@ impl<E: Endpoint, C: Callbacks, T: tun::Writer, B: udp::Writer<E>> PeerInner<E,
|
||||
debug!("peer.send");
|
||||
|
||||
// send to endpoint (if known)
|
||||
match self.endpoint.lock().as_ref() {
|
||||
match self.endpoint.lock().as_mut() {
|
||||
Some(endpoint) => {
|
||||
let outbound = self.device.outbound.read();
|
||||
if outbound.0 {
|
||||
|
||||
@@ -21,9 +21,6 @@ use std::sync::Mutex as StdMutex;
|
||||
use std::thread;
|
||||
use std::time::Instant;
|
||||
|
||||
use std::collections::hash_map::Entry;
|
||||
use std::collections::HashMap;
|
||||
|
||||
use hjul::Runner;
|
||||
use rand::rngs::OsRng;
|
||||
use rand::Rng;
|
||||
@@ -50,14 +47,13 @@ pub struct WireguardInner<T: Tun, B: UDP> {
|
||||
// outbound writer
|
||||
pub send: RwLock<Option<B::Writer>>,
|
||||
|
||||
// identity and configuration map
|
||||
pub peers: RwLock<HashMap<[u8; 32], Peer<T, B>>>,
|
||||
// peer map
|
||||
pub peers: RwLock<handshake::Device<Peer<T, B>>>,
|
||||
|
||||
// cryptokey router
|
||||
pub router: router::Device<B::Endpoint, Events<T, B>, T::Writer, B::Writer>,
|
||||
|
||||
// handshake related state
|
||||
pub handshake: RwLock<handshake::Device>,
|
||||
pub last_under_load: Mutex<Instant>,
|
||||
pub pending: AtomicUsize, // number of pending handshake packets in queue
|
||||
pub queue: ParallelQueue<HandshakeJob<B::Endpoint>>,
|
||||
@@ -142,7 +138,7 @@ impl<T: Tun, B: UDP> WireGuard<T, B> {
|
||||
self.router.down();
|
||||
|
||||
// set all peers down (stops timers)
|
||||
for peer in self.peers.write().values() {
|
||||
for (_, peer) in self.peers.write().iter() {
|
||||
peer.down();
|
||||
}
|
||||
|
||||
@@ -163,11 +159,11 @@ impl<T: Tun, B: UDP> WireGuard<T, B> {
|
||||
return;
|
||||
}
|
||||
|
||||
// enable tranmission from router
|
||||
// enable transmission from router
|
||||
self.router.up();
|
||||
|
||||
// set all peers up (restarts timers)
|
||||
for peer in self.peers.write().values() {
|
||||
for (_, peer) in self.peers.write().iter() {
|
||||
peer.up();
|
||||
}
|
||||
|
||||
@@ -179,54 +175,51 @@ impl<T: Tun, B: UDP> WireGuard<T, B> {
|
||||
}
|
||||
|
||||
pub fn remove_peer(&self, pk: &PublicKey) {
|
||||
if self.handshake.write().remove(pk).is_ok() {
|
||||
self.peers.write().remove(pk.as_bytes());
|
||||
}
|
||||
let _ = self.peers.write().remove(pk);
|
||||
}
|
||||
|
||||
pub fn lookup_peer(&self, pk: &PublicKey) -> Option<Peer<T, B>> {
|
||||
self.peers.read().get(pk.as_bytes()).map(|p| p.clone())
|
||||
self.peers.read().get(pk).map(|p| p.clone())
|
||||
}
|
||||
|
||||
pub fn list_peers(&self) -> Vec<Peer<T, B>> {
|
||||
let peers = self.peers.read();
|
||||
let mut list = Vec::with_capacity(peers.len());
|
||||
for (k, v) in peers.iter() {
|
||||
debug_assert!(k == v.pk.as_bytes());
|
||||
debug_assert!(k.as_bytes() == v.pk.as_bytes());
|
||||
list.push(v.clone());
|
||||
}
|
||||
list
|
||||
}
|
||||
|
||||
pub fn set_key(&self, sk: Option<StaticSecret>) {
|
||||
let mut handshake = self.handshake.write();
|
||||
handshake.set_sk(sk);
|
||||
let mut peers = self.peers.write();
|
||||
peers.set_sk(sk);
|
||||
self.router.clear_sending_keys();
|
||||
// handshake lock is released and new handshakes can be initated
|
||||
}
|
||||
|
||||
pub fn get_sk(&self) -> Option<StaticSecret> {
|
||||
self.handshake
|
||||
self.peers
|
||||
.read()
|
||||
.get_sk()
|
||||
.map(|sk| StaticSecret::from(sk.to_bytes()))
|
||||
}
|
||||
|
||||
pub fn set_psk(&self, pk: PublicKey, psk: [u8; 32]) -> bool {
|
||||
self.handshake.write().set_psk(pk, psk).is_ok()
|
||||
self.peers.write().set_psk(pk, psk).is_ok()
|
||||
}
|
||||
pub fn get_psk(&self, pk: &PublicKey) -> Option<[u8; 32]> {
|
||||
self.handshake.read().get_psk(pk).ok()
|
||||
self.peers.read().get_psk(pk).ok()
|
||||
}
|
||||
|
||||
pub fn add_peer(&self, pk: PublicKey) -> bool {
|
||||
if self.peers.read().contains_key(pk.as_bytes()) {
|
||||
let mut peers = self.peers.write();
|
||||
if peers.contains_key(&pk) {
|
||||
return false;
|
||||
}
|
||||
|
||||
let mut rng = OsRng::new().unwrap();
|
||||
let state = Arc::new(PeerInner {
|
||||
id: rng.gen(),
|
||||
id: OsRng.gen(),
|
||||
pk,
|
||||
wg: self.clone(),
|
||||
walltime_last_handshake: Mutex::new(None),
|
||||
@@ -243,17 +236,6 @@ impl<T: Tun, B: UDP> WireGuard<T, B> {
|
||||
// form WireGuard peer
|
||||
let peer = Peer { router, state };
|
||||
|
||||
// finally, add the peer to the wireguard device
|
||||
let mut peers = self.peers.write();
|
||||
match peers.entry(*pk.as_bytes()) {
|
||||
Entry::Occupied(_) => false,
|
||||
Entry::Vacant(vacancy) => {
|
||||
// check that the public key does not cause conflict with the private key of the device
|
||||
let ok_pk = self.handshake.write().add(pk).is_ok();
|
||||
if !ok_pk {
|
||||
return false;
|
||||
}
|
||||
|
||||
// prevent up/down while inserting
|
||||
let enabled = self.enabled.read();
|
||||
|
||||
@@ -265,11 +247,8 @@ impl<T: Tun, B: UDP> WireGuard<T, B> {
|
||||
*/
|
||||
*peer.timers.write() = Timers::new(&*self.runner.lock(), *enabled, peer.clone());
|
||||
|
||||
// insert into peer map (takes ownership and ensures that the peer is not dropped)
|
||||
vacancy.insert(peer);
|
||||
true
|
||||
}
|
||||
}
|
||||
// finally, add the peer to the wireguard device
|
||||
peers.add(pk, peer).is_ok()
|
||||
}
|
||||
|
||||
/// Begin consuming messages from the reader.
|
||||
@@ -311,9 +290,6 @@ impl<T: Tun, B: UDP> WireGuard<T, B> {
|
||||
// workers equal to number of physical cores
|
||||
let cpus = num_cpus::get();
|
||||
|
||||
// create device state
|
||||
let mut rng = OsRng::new().unwrap();
|
||||
|
||||
// create handshake queue
|
||||
let (tx, mut rxs) = ParallelQueue::new(cpus, 128);
|
||||
|
||||
@@ -322,14 +298,13 @@ impl<T: Tun, B: UDP> WireGuard<T, B> {
|
||||
inner: Arc::new(WireguardInner {
|
||||
enabled: RwLock::new(false),
|
||||
tun_readers: WaitCounter::new(),
|
||||
id: rng.gen(),
|
||||
id: OsRng.gen(),
|
||||
mtu: AtomicUsize::new(0),
|
||||
peers: RwLock::new(HashMap::new()),
|
||||
last_under_load: Mutex::new(Instant::now() - TIME_HORIZON),
|
||||
send: RwLock::new(None),
|
||||
router: router::Device::new(num_cpus::get(), writer), // router owns the writing half
|
||||
pending: AtomicUsize::new(0),
|
||||
handshake: RwLock::new(handshake::Device::new()),
|
||||
peers: RwLock::new(handshake::Device::new()),
|
||||
runner: Mutex::new(Runner::new(TIMERS_TICK, TIMERS_SLOTS, TIMERS_CAPACITY)),
|
||||
queue: tx,
|
||||
}),
|
||||
|
||||
@@ -152,9 +152,6 @@ pub fn handshake_worker<T: Tun, B: UDP>(
|
||||
) {
|
||||
debug!("{} : handshake worker, started", wg);
|
||||
|
||||
// prepare OsRng instance for this thread
|
||||
let mut rng = OsRng::new().expect("Unable to obtain a CSPRNG");
|
||||
|
||||
// process elements from the handshake queue
|
||||
for job in rx {
|
||||
// check if under load
|
||||
@@ -181,11 +178,11 @@ pub fn handshake_worker<T: Tun, B: UDP>(
|
||||
|
||||
// de-multiplex staged handshake jobs and handshake messages
|
||||
match job {
|
||||
HandshakeJob::Message(msg, src) => {
|
||||
HandshakeJob::Message(msg, mut src) => {
|
||||
// process message
|
||||
let device = wg.handshake.read();
|
||||
let device = wg.peers.read();
|
||||
match device.process(
|
||||
&mut rng,
|
||||
&mut OsRng,
|
||||
&msg[..],
|
||||
if under_load {
|
||||
Some(src.into_address())
|
||||
@@ -193,7 +190,7 @@ pub fn handshake_worker<T: Tun, B: UDP>(
|
||||
None
|
||||
},
|
||||
) {
|
||||
Ok((pk, resp, keypair)) => {
|
||||
Ok((peer, resp, keypair)) => {
|
||||
// send response (might be cookie reply or handshake response)
|
||||
let mut resp_len: u64 = 0;
|
||||
if let Some(msg) = resp {
|
||||
@@ -204,7 +201,7 @@ pub fn handshake_worker<T: Tun, B: UDP>(
|
||||
"{} : handshake worker, send response ({} bytes)",
|
||||
wg, resp_len
|
||||
);
|
||||
let _ = writer.write(&msg[..], &src).map_err(|e| {
|
||||
let _ = writer.write(&msg[..], &mut src).map_err(|e| {
|
||||
debug!(
|
||||
"{} : handshake worker, failed to send response, error = {}",
|
||||
wg,
|
||||
@@ -215,9 +212,9 @@ pub fn handshake_worker<T: Tun, B: UDP>(
|
||||
}
|
||||
|
||||
// update peer state
|
||||
if let Some(pk) = pk {
|
||||
if let Some(peer) = peer {
|
||||
// authenticated handshake packet received
|
||||
if let Some(peer) = wg.peers.read().get(pk.as_bytes()) {
|
||||
|
||||
// add to rx_bytes and tx_bytes
|
||||
let req_len = msg.len() as u64;
|
||||
peer.rx_bytes.fetch_add(req_len, Ordering::Relaxed);
|
||||
@@ -253,18 +250,17 @@ pub fn handshake_worker<T: Tun, B: UDP>(
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
Err(e) => debug!("{} : handshake worker, error = {:?}", wg, e),
|
||||
}
|
||||
}
|
||||
HandshakeJob::New(pk) => {
|
||||
if let Some(peer) = wg.peers.read().get(pk.as_bytes()) {
|
||||
if let Some(peer) = wg.peers.read().get(&pk) {
|
||||
debug!(
|
||||
"{} : handshake worker, new handshake requested for {}",
|
||||
wg, peer
|
||||
);
|
||||
let device = wg.handshake.read();
|
||||
let _ = device.begin(&mut rng, &peer.pk).map(|msg| {
|
||||
let device = wg.peers.read();
|
||||
let _ = device.begin(&mut OsRng, &peer.pk).map(|msg| {
|
||||
let _ = peer.router.send(&msg[..]).map_err(|e| {
|
||||
debug!("{} : handshake worker, failed to send handshake initiation, error = {}", wg, e)
|
||||
});
|
||||
|
||||
Reference in New Issue
Block a user