CHANGELOG.md

@@ -5,15 +5,11 @@ This project follows [semantic versioning](http://semver.org).
 ### Unreleased
 
 - [added] Added service restrictions to systemd
-- [changed] Rust version 1.40.0
 - [changed] Also drop privileges in foreground mode
 - [changed] Set builders to Ubuntu 16.04 and CentOS 7
 - [changed] Set keepalive to 120 secs when NAT is detected
-- [changed] Deleting beacon file at shutdown
 - [fixed] Added parameter keepalive to manpage
 - [fixed] Fixed problems on stats file when dropping permissions
-- [fixed] Deleting files before overwriting them
-- [fixed] Fixed duplicate port bindings
 
 ### v1.1.0 (2019-12-04)
 

Cargo.lock

@@ -62,7 +62,7 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.48"
+version = "1.0.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -86,8 +86,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
- "strsim 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strsim 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -224,7 +224,7 @@ version = "0.14.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -236,7 +236,7 @@ version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -395,7 +395,7 @@ name = "ring"
 version = "0.16.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -406,15 +406,15 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.104"
+version = "1.0.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.104"
+version = "1.0.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -429,7 +429,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dtoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "yaml-rust 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -464,7 +464,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "strsim"
-version = "0.9.3"
+version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -563,7 +563,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "vpncloud"
 version = "1.1.0"
 dependencies = [
- "cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)",
  "daemonize 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "docopt 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -575,8 +575,8 @@ dependencies = [
  "privdrop 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.16.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_yaml 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "signal 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "siphasher 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -727,7 +727,7 @@ dependencies = [
 "checksum byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a7c3dd8985a7111efc5c80b44e23ecdd8c007de8ade3b96595387e812b957cf5"
 "checksum bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)" = "206fdffcfa2df7cbe15601ef46c813fce0965eb3286db6b56c583b814b51c81c"
 "checksum c2-chacha 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "214238caa1bf3a496ec3392968969cab8549f96ff30652c9e56885329315f6bb"
-"checksum cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)" = "f52a465a666ca3d838ebbf08b241383421412fe7ebb463527bba275526d89f76"
+"checksum cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)" = "aa87058dce70a3ff5621797f1506cb837edd02ac4c0ae642b4542dce802908b8"
 "checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 "checksum daemonize 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "70c24513e34f53b640819f0ac9f705b673fcf4006d7aab8778bee72ebfc89815"
 "checksum docopt 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7f525a586d310c87df72ebcd98009e57f1cc030c8c268305287a476beb653969"
@@ -771,15 +771,15 @@ dependencies = [
 "checksum regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "11a7e20d1cce64ef2fed88b66d347f88bd9babb82845b2b858f3edbf59a4f716"
 "checksum remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4a83fa3702a688b9359eccba92d153ac33fd2e8462f9e0e3fdf155239ea7792e"
 "checksum ring 0.16.9 (registry+https://github.com/rust-lang/crates.io-index)" = "6747f8da1f2b1fabbee1aaa4eb8a11abf9adef0bf58a41cee45db5d59cecdfac"
-"checksum serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)" = "414115f25f818d7dfccec8ee535d76949ae78584fc4f79a6f45a904bf8ab4449"
+"checksum serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)" = "1217f97ab8e8904b57dd22eb61cde455fa7446a9c1cf43966066da047c1f3702"
-"checksum serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)" = "128f9e303a5a29922045a830221b8f78ec74a5f544944f3d5984f8ec3895ef64"
+"checksum serde_derive 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)" = "a8c6faef9a2e64b0064f48570289b4bf8823b7581f1d6157c1b52152306651d0"
 "checksum serde_yaml 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)" = "691b17f19fc1ec9d94ec0b5864859290dff279dbd7b03f017afda54eb36c3c35"
 "checksum signal 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2f6ce83b159ab6984d2419f495134972b48754d13ff2e3f8c998339942b56ed9"
 "checksum siphasher 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "83da420ee8d1a89e640d0948c646c1c088758d3a3c538f943bfa97bdac17929d"
 "checksum smallvec 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4ecf3b85f68e8abaa7555aa5abdb1153079387e60b718283d732f03897fcfc86"
 "checksum sourcefile 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "4bf77cb82ba8453b42b6ae1d692e4cdc92f9a47beaf89a847c8be83f4e328ad3"
 "checksum spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
-"checksum strsim 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6446ced80d6c486436db5c078dde11a9f73d42b57fb273121e160b84f63d894c"
+"checksum strsim 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "032c03039aae92b350aad2e3779c352e104d919cb192ba2fabbd7b831ce4f0f6"
 "checksum syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)" = "dff0acdb207ae2fe6d5976617f887eb1e35a2ba52c13c7234c790960cdad9238"
 "checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"

builder/Dockerfile-deb

@@ -9,7 +9,7 @@ RUN useradd -ms /bin/bash user
 USER user
 WORKDIR /home/user
 
-ENV RUST=1.40.0
+ENV RUST=1.39.0
 
 RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain ${RUST}
 

builder/Dockerfile-rpm

@@ -6,7 +6,7 @@ RUN useradd -ms /bin/bash user
 USER user
 WORKDIR /home/user
 
-ENV RUST=1.40.0
+ENV RUST=1.39.0
 
 RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain ${RUST}
 

src/beacon.rs

@@ -213,13 +213,9 @@ impl<TS: TimeSource> BeaconSerializer<TS> {
     pub fn write_to_file<P: AsRef<Path>>(&self, peers: &[SocketAddr], path: P) -> Result<(), io::Error> {
         let beacon = self.encode(peers);
         debug!("Beacon: {}", beacon);
-        let path = path.as_ref();
+        let mut f = File::create(&path)?;
-        if path.exists() {
-            fs::remove_file(path)?
-        }
-        let mut f = File::create(path)?;
         writeln!(&mut f, "{}", beacon)?;
-        fs::set_permissions(path, Permissions::from_mode(0o444))?;
+        fs::set_permissions(&path, Permissions::from_mode(0o644))?;
         Ok(())
     }
 

src/cloud.rs

@@ -6,12 +6,11 @@ use std::{
     cmp::min,
     collections::HashMap,
     fmt,
-    fs::{self, File},
+    fs::File,
     hash::BuildHasherDefault,
     io::{self, Write},
     marker::PhantomData,
-    net::{SocketAddr, ToSocketAddrs},
+    net::{SocketAddr, ToSocketAddrs}
-    path::Path
 };
 
 use fnv::FnvHasher;
@@ -827,15 +826,6 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
         }
         info!("Shutting down...");
         self.broadcast_msg(&mut Message::Close).ok();
-        if let Some(ref path) = self.config.beacon_store {
-            let path = Path::new(path);
-            if path.exists() {
-                info!("Removing beacon file");
-                if let Err(e) = fs::remove_file(path) {
-                    error!("Failed to remove beacon file: {}", e)
-                }
-            }
-        }
     }
 }
 

src/crypto.rs

@@ -116,13 +116,10 @@ impl Crypto {
         for _ in 0..algo.nonce_len() {
             nonce.push(0);
         }
-        if SystemRandom::new().fill(&mut nonce).is_err() {
+        // leave the highest byte of the nonce 0 so it will not overflow
+        if SystemRandom::new().fill(&mut nonce[1..]).is_err() {
             fail!("Randomizing nonce failed");
         }
-        // make sure the nonce will not overflow
-        if nonce[0] == 0xff {
-            nonce[0] = 0
-        }
         let data = CryptoData { crypto_key, nonce, key };
         match method {
             CryptoMethod::ChaCha20 => Crypto::ChaCha20Poly1305(data),

src/main.rs

@@ -103,10 +103,6 @@ struct DualLogger {
 impl DualLogger {
     pub fn new<P: AsRef<Path>>(path: Option<P>) -> Result<Self, io::Error> {
         if let Some(path) = path {
-            let path = path.as_ref();
-            if path.exists() {
-                fs::remove_file(path)?
-            }
             let file = File::create(path)?;
             Ok(DualLogger { file: Mutex::new(Some(file)) })
         } else {
@@ -273,10 +269,6 @@ fn run<P: Protocol>(config: Config) {
     let stats_file = match config.stats_file {
         None => None,
         Some(ref name) => {
-            let path = Path::new(name);
-            if path.exists() {
-                try_fail!(fs::remove_file(path), "Failed to remove file {}: {}", name);
-            }
             let file = try_fail!(File::create(name), "Failed to create stats file: {}");
             try_fail!(
                 fs::set_permissions(name, Permissions::from_mode(0o644)),

src/net.rs

@@ -22,13 +22,19 @@ pub trait Socket: AsRawFd + Sized {
 
 impl Socket for UdpSocket {
     fn listen_v4(host: &str, port: u16) -> Result<Self, io::Error> {
-        UdpBuilder::new_v4().expect("Failed to obtain ipv4 socket builder").bind((host, port))
+        UdpBuilder::new_v4()
+            .expect("Failed to obtain ipv4 socket builder")
+            .reuse_address(true)
+            .expect("Failed to set so_reuseaddr")
+            .bind((host, port))
     }
     fn listen_v6(host: &str, port: u16) -> Result<Self, io::Error> {
         UdpBuilder::new_v6()
             .expect("Failed to obtain ipv4 socket builder")
             .only_v6(true)
             .expect("Failed to set only_v6")
+            .reuse_address(true)
+            .expect("Failed to set so_reuseaddr")
             .bind((host, port))
     }
     fn receive(&mut self, buffer: &mut [u8]) -> Result<(usize, SocketAddr), io::Error> {