CHANGELOG.md

@@ -5,9 +5,8 @@ This project follows [semantic versioning](http://semver.org).
 ### UNRELEASED
 
 - [added] Support for creating shell completions
-- [added] Support for hook scripts to handle certain situations
 - [removed] Removed dummy device type
-- [changed] Updated dependencies
+- [changed] Updated depdendencies
 - [changed] Changed Rust version to 1.49.0
 - [fixed] Added missing peer address propagation
 

Cargo.lock

@@ -52,9 +52,9 @@ checksum = "5988cb1d626264ac94100be357308f29ff7cbdd3b36bda27f450a4ee3f713426"
 
 [[package]]
 name = "bumpalo"
-version = "3.5.0"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f07aa6688c702439a1be0307b6a94dffe1168569e45b9500c1372bc580740d59"
+checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
 
 [[package]]
 name = "byteorder"
@@ -147,9 +147,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.2"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
+checksum = "4060f4657be78b8e766215b02b18a2e862d83745545de804638e2b545e81aee6"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
@@ -167,9 +167,9 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.18"
+version = "0.1.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
+checksum = "5aca5565f760fb5b220e499d72710ed156fdb74e631659e99377d9ebfbd13ae8"
 dependencies = [
  "libc",
 ]
@@ -463,15 +463,15 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
 [[package]]
 name = "serde"
-version = "1.0.121"
+version = "1.0.120"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6159e3c76cab06f6bc466244d43b35e77e9500cd685da87620addadc2a4c40b1"
+checksum = "166b2349061381baf54a58e4b13c89369feb0ef2eaa57198899e2312aac30aab"
 
 [[package]]
 name = "serde_derive"
-version = "1.0.121"
+version = "1.0.120"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3fcab8778dc651bc65cfab2e4eb64996f3c912b74002fb379c94517e1f27c46"
+checksum = "0ca2a8cb5805ce9e3b95435e3765b7b553cecc762d938d409434338386cb5775"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -619,9 +619,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.59"
+version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07cb8b1b4ebf86a89ee88cbd201b022b94138c623644d035185c84d3f41b7e66"
+checksum = "cc60a3d73ea6594cd712d830cc1f0390fd71542d8c8cd24e70cc54cdfd5e05d5"
 dependencies = [
  "proc-macro2",
  "quote",

src/cloud.rs

@@ -26,8 +26,7 @@ use crate::{
     device::{Device, Type},
     error::Error,
     messages::{
-        AddrList, NodeInfo, PeerInfo, MESSAGE_TYPE_CLOSE, MESSAGE_TYPE_DATA, MESSAGE_TYPE_KEEPALIVE,
+        AddrList, NodeInfo, PeerInfo, MESSAGE_TYPE_CLOSE, MESSAGE_TYPE_DATA, MESSAGE_TYPE_KEEPALIVE, MESSAGE_TYPE_NODE_INFO
-        MESSAGE_TYPE_NODE_INFO
     },
     net::{mapped_addr, Socket},
     payload::Protocol,
@@ -36,7 +35,7 @@ use crate::{
     table::ClaimTable,
     traffic::TrafficStats,
     types::{Address, Mode, NodeId, Range, RangeList},
-    util::{addr_nice, bytes_to_hex, resolve, CtrlC, Duration, MsgBuffer, StatsdMsg, Time, TimeSource}
+    util::{addr_nice, resolve, CtrlC, Duration, MsgBuffer, StatsdMsg, Time, TimeSource}
 };
 
 pub type Hash = BuildHasherDefault<FnvHasher>;
@@ -126,9 +125,6 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
                     info!("Auto-claiming {} due to interface address", range);
                     claims.push(range);
                 }
-                Err(Error::DeviceIo(_, e)) if e.kind() == io::ErrorKind::AddrNotAvailable => {
-                    info!("No address set on interface.")
-                }
                 Err(e) => error!("{}", e)
             }
         }
@@ -229,7 +225,6 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
             self.own_addresses.push(pfw.get_internal_ip().into());
             self.own_addresses.push(pfw.get_external_ip().into());
         }
-        // TODO: detect address changes and call event
         Ok(())
     }
 
@@ -284,13 +279,6 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
                 return Ok(())
             }
         }
-        if !addrs.is_empty() {
-            self.config.call_hook(
-                "peer_connecting",
-                vec![("PEER", format!("{:?}", addr_nice(addrs[0]))), ("IFNAME", self.device.ifname().to_owned())],
-                true
-            );
-        }
         // Send a message to each resolved address
         for a in addrs {
             // Ignore error this time
@@ -466,7 +454,6 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
             self.next_stats_out = now + STATS_INTERVAL;
             self.traffic.period(Some(5));
         }
-        // TODO: every 5 minutes: EVENT periodic
         if let Some(peers) = self.beacon_serializer.get_cmd_results() {
             debug!("Loaded beacon with peers: {:?}", peers);
             for peer in peers {
@@ -641,16 +628,6 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
 
     fn add_new_peer(&mut self, addr: SocketAddr, info: NodeInfo) -> Result<(), Error> {
         info!("Added peer {}", addr_nice(addr));
-        self.config.call_hook(
-            "peer_connected",
-            vec![
-                ("PEER", format!("{:?}", addr_nice(addr))),
-                ("IFNAME", self.device.ifname().to_owned()),
-                ("CLAIMS", info.claims.iter().map(|r| format!("{:?}", r)).collect::<Vec<String>>().join(" ")),
-                ("NODE_ID", bytes_to_hex(&info.node_id)),
-            ],
-            true
-        );
         if let Some(init) = self.pending_inits.remove(&addr) {
             self.peers.insert(addr, PeerData {
                 addrs: info.addrs.clone(),
@@ -668,18 +645,9 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
     }
 
     fn remove_peer(&mut self, addr: SocketAddr) {
-        if let Some(peer) = self.peers.remove(&addr) {
+        if let Some(_peer) = self.peers.remove(&addr) {
             info!("Closing connection to {}", addr_nice(addr));
             self.table.remove_claims(addr);
-            self.config.call_hook(
-                "peer_disconnected",
-                vec![
-                    ("PEER", format!("{:?}", addr)),
-                    ("IFNAME", self.device.ifname().to_owned()),
-                    ("NODE_ID", bytes_to_hex(&peer.node_id)),
-                ],
-                true
-            );
         }
     }
 
@@ -793,14 +761,6 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
                 let msg_result = init.handle_message(data);
                 match msg_result {
                     Ok(res) => {
-                        self.config.call_hook(
-                            "peer_connecting",
-                            vec![
-                                ("PEER", format!("{:?}", addr_nice(src))),
-                                ("IFNAME", self.device.ifname().to_owned()),
-                            ],
-                            true
-                        );
                         self.pending_inits.insert(src, init);
                         Ok(res)
                     }
@@ -840,11 +800,6 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
                 debug!("Fatal crypto init error from {}: {}", src, e);
                 info!("Closing pending connection to {} due to error in crypto init", addr_nice(src));
                 self.pending_inits.remove(&src);
-                self.config.call_hook(
-                    "peer_disconnected",
-                    vec![("PEER", format!("{:?}", addr_nice(src))), ("IFNAME", self.device.ifname().to_owned())],
-                    true
-                );
             }
             Err(e @ Error::CryptoInit(_)) => {
                 debug!("Recoverable init error from {}: {}", src, e);
@@ -876,7 +831,6 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
         let waiter = try_fail!(WaitImpl::new(&self.socket, &self.device, 1000), "Failed to setup poll: {}");
         let mut buffer = MsgBuffer::new(SPACE_BEFORE);
         let mut poll_error = false;
-        self.config.call_hook("vpn_started", vec![("IFNAME", self.device.ifname())], true);
         for evt in waiter {
             match evt {
                 WaitResult::Error(err) => {
@@ -902,7 +856,6 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
             }
         }
         info!("Shutting down...");
-        self.config.call_hook("vpn_shutdown", vec![("IFNAME", self.device.ifname())], true);
         buffer.clear();
         self.broadcast_msg(MESSAGE_TYPE_CLOSE, &mut buffer).ok();
         if let Some(ref path) = self.config.beacon_store {

src/config.rs

@@ -4,20 +4,19 @@
 
 use super::{device::Type, types::Mode, util::Duration};
 pub use crate::crypto::Config as CryptoConfig;
-use crate::util::run_cmd;
+
 use std::{
     cmp::max,
-    collections::HashMap,
+    net::{IpAddr, Ipv6Addr, SocketAddr}
-    ffi::OsStr,
-    net::{IpAddr, Ipv6Addr, SocketAddr},
-    process::Command,
-    thread
 };
-use structopt::{clap::Shell, StructOpt};
+use structopt::StructOpt;
+use structopt::clap::Shell;
+
 
 pub const DEFAULT_PEER_TIMEOUT: u16 = 300;
 pub const DEFAULT_PORT: u16 = 3210;
 
+
 fn parse_listen(addr: &str) -> SocketAddr {
     if let Some(addr) = addr.strip_prefix("*:") {
         let port = try_fail!(addr.parse::<u16>(), "Invalid port: {}");
@@ -62,9 +61,7 @@ pub struct Config {
     pub statsd_server: Option<String>,
     pub statsd_prefix: Option<String>,
     pub user: Option<String>,
-    pub group: Option<String>,
+    pub group: Option<String>
-    pub hook: Option<String>,
-    pub hooks: HashMap<String, String>
 }
 
 impl Default for Config {
@@ -97,9 +94,7 @@ impl Default for Config {
             statsd_server: None,
             statsd_prefix: None,
             user: None,
-            group: None,
+            group: None
-            hook: None,
-            hooks: HashMap::new()
         }
     }
 }
@@ -204,12 +199,6 @@ impl Config {
         if !file.crypto.algorithms.is_empty() {
             self.crypto.algorithms = file.crypto.algorithms.clone();
         }
-        if let Some(val) = file.hook {
-            self.hook = Some(val)
-        }
-        for (k, v) in file.hooks {
-            self.hooks.insert(k, v);
-        }
     }
 
     pub fn merge_args(&mut self, mut args: Args) {
@@ -303,16 +292,6 @@ impl Config {
         if !args.algorithms.is_empty() {
             self.crypto.algorithms = args.algorithms.clone();
         }
-        for s in args.hook {
-            if s.contains(':') {
-                let pos = s.find(':').unwrap();
-                let name = &s[..pos];
-                let hook = &s[pos+1..];
-                self.hooks.insert(name.to_string(), hook.to_string());
-            } else {
-                self.hook = Some(s);
-            }
-        }
     }
 
     pub fn get_keepalive(&self) -> Duration {
@@ -321,32 +300,9 @@ impl Config {
             None => max(self.peer_timeout / 2 - 60, 1)
         }
     }
-
-    pub fn call_hook(
-        &self, event: &'static str, envs: impl IntoIterator<Item = (&'static str, impl AsRef<OsStr>)>, detach: bool
-    ) {
-        let mut script = None;
-        if let Some(ref s) = self.hook {
-            script = Some(s);
-        }
-        if let Some(ref s) = self.hooks.get(event) {
-            script = Some(s);
-        }
-        if script.is_none() {
-            return
-        }
-        let script = script.unwrap();
-        let mut cmd = Command::new("sh");
-        cmd.arg("-c").arg(script).envs(envs).env("EVENT", event);
-        debug!("Running event script: {:?}", cmd);
-        if detach {
-            thread::spawn(move || run_cmd(cmd));
-        } else {
-            run_cmd(cmd)
-        }
-    }
 }
 
+
 #[derive(StructOpt, Debug, Default)]
 pub struct Args {
     /// Read configuration options from the specified file.
@@ -507,11 +463,7 @@ pub struct Args {
 
     /// Generate shell completions
     #[structopt(long)]
-    pub completion: Option<Shell>,
+    pub completion: Option<Shell>
-
-    /// Call script on event
-    #[structopt(long)]
-    pub hook: Vec<String>
 }
 
 #[derive(Serialize, Deserialize, Debug, PartialEq, Default)]
@@ -565,11 +517,10 @@ pub struct ConfigFile {
     pub stats_file: Option<String>,
     pub statsd: Option<ConfigFileStatsd>,
     pub user: Option<String>,
-    pub group: Option<String>,
+    pub group: Option<String>
-    pub hook: Option<String>,
-    pub hooks: HashMap<String, String>
 }
 
+
 #[test]
 fn config_file() {
     let config_file = "
@@ -636,9 +587,7 @@ statsd:
         statsd: Some(ConfigFileStatsd {
             server: Some("example.com:1234".to_string()),
             prefix: Some("prefix".to_string())
-        }),
+        })
-        hook: None,
-        hooks: HashMap::new()
     })
 }
 
@@ -672,12 +621,9 @@ fn default_config_as_default() {
         statsd_server: None,
         statsd_prefix: None,
         user: None,
-        group: None,
+        group: None
-        hook: None,
-        hooks: HashMap::new()
     };
-    let default_config_file =
+    let default_config_file = serde_yaml::from_str::<ConfigFile>(include_str!("../assets/example.net.disabled")).unwrap();
-        serde_yaml::from_str::<ConfigFile>(include_str!("../assets/example.net.disabled")).unwrap();
     default_config.merge_file(default_config_file);
     assert_eq!(default_config, Config::default());
 }
@@ -718,9 +664,7 @@ fn config_merge() {
         statsd: Some(ConfigFileStatsd {
             server: Some("example.com:1234".to_string()),
             prefix: Some("prefix".to_string())
-        }),
+        })
-        hook: None,
-        hooks: HashMap::new()
     });
     assert_eq!(config, Config {
         device_type: Type::Tun,
@@ -809,8 +753,6 @@ fn config_merge() {
         stats_file: Some("/var/log/vpncloud-mynet.stats".to_string()),
         statsd_server: Some("example.com:2345".to_string()),
         statsd_prefix: Some("prefix2".to_string()),
-        daemonize: true,
+        daemonize: true
-        hook: None,
-        hooks: HashMap::new()
     });
 }

src/device.rs

@@ -5,12 +5,12 @@
 use std::{
     cmp,
     collections::VecDeque,
-    convert::TryInto,
     fmt,
     fs::{self, File},
     io::{self, BufRead, BufReader, Cursor, Error as IoError, Read, Write},
     net::{Ipv4Addr, UdpSocket},
     os::unix::io::{AsRawFd, RawFd},
+    convert::TryInto,
     str,
     str::FromStr
 };
@@ -36,7 +36,7 @@ struct IfReq {
 impl IfReq {
     fn new(name: &str) -> Self {
         assert!(name.len() < libc::IF_NAMESIZE);
-        let mut ifr_name = [0; libc::IF_NAMESIZE];
+        let mut ifr_name = [0 as u8; libc::IF_NAMESIZE];
         ifr_name[..name.len()].clone_from_slice(name.as_bytes());
         Self { ifr_name, data: IfReqData { _dummy: [0; 24] } }
     }
@@ -329,7 +329,7 @@ impl Device for MockDevice {
     }
 
     fn ifname(&self) -> &str {
-        "mock0"
+        unimplemented!()
     }
 
     fn read(&mut self, buffer: &mut MsgBuffer) -> Result<(), Error> {

src/main.rs

@@ -140,7 +140,6 @@ fn setup_device(config: &Config) -> TunTapDevice {
         config.device_name
     );
     info!("Opened device {}", device.ifname());
-    config.call_hook("device_setup", vec![("IFNAME", device.ifname())], true);
     if let Err(err) = device.set_mtu(None) {
         error!("Error setting optimal MTU on {}: {}", device.ifname(), err);
     }
@@ -160,7 +159,6 @@ fn setup_device(config: &Config) -> TunTapDevice {
             warn!("Your networking configuration might be affected by a vulnerability (https://vpncloud.ddswd.de/docs/security/cve-2019-14899/), please change your rp_filter setting to 1 (currently {}).", val);
         }
     }
-    config.call_hook("device_configured", vec![("IFNAME", device.ifname())], true);
     device
 }
 

src/oldconfig.rs

@@ -1,6 +1,5 @@
 use super::{device::Type, types::Mode, util::Duration};
 use crate::config::{ConfigFile, ConfigFileBeacon, ConfigFileDevice, ConfigFileStatsd, CryptoConfig};
-use std::collections::HashMap;
 
 #[derive(Serialize, Deserialize, Debug, PartialEq, Clone, Copy)]
 pub enum OldCryptoMethod {
@@ -113,11 +112,12 @@ impl OldConfigFile {
             pid_file: self.pid_file,
             port_forwarding: self.port_forwarding,
             stats_file: self.stats_file,
-            statsd: Some(ConfigFileStatsd { prefix: self.statsd_prefix, server: self.statsd_server }),
+            statsd: Some(ConfigFileStatsd {
+                prefix: self.statsd_prefix,
+                server: self.statsd_server
+            }),
             switch_timeout: self.dst_timeout,
-            user: self.user,
+            user: self.user
-            hook: None,
-            hooks: HashMap::new()
         }
     }
-}
+}

src/util.rs

@@ -2,31 +2,31 @@
 // Copyright (C) 2015-2020  Dennis Schwerdel
 // This software is licensed under GPL-3 or newer (see LICENSE.md)
 
-use std::process::Command;
 use std::{
     fmt,
     net::{Ipv4Addr, SocketAddr, ToSocketAddrs, UdpSocket},
-    sync::atomic::{AtomicIsize, Ordering},
+    sync::atomic::{AtomicIsize, Ordering}
 };
 
 use crate::error::Error;
 
-#[cfg(not(target_os = "linux"))]
+#[cfg(not(target_os = "linux"))] use time;
-use time;
 
 use signal::{trap::Trap, Signal};
 use smallvec::SmallVec;
 use std::time::Instant;
 
+
 pub type Duration = u32;
 pub type Time = i64;
 
+
 #[derive(Clone)]
 pub struct MsgBuffer {
     space_before: usize,
     buffer: [u8; 65535],
     start: usize,
-    end: usize,
+    end: usize
 }
 
 impl MsgBuffer {
@@ -98,6 +98,7 @@ impl MsgBuffer {
     }
 }
 
+
 const HEX_CHARS: &[u8] = b"0123456789abcdef";
 
 pub fn bytes_to_hex(bytes: &[u8]) -> String {
@@ -112,12 +113,13 @@ pub fn bytes_to_hex(bytes: &[u8]) -> String {
 pub fn addr_nice(addr: SocketAddr) -> SocketAddr {
     if let SocketAddr::V6(v6addr) = addr {
         if let Some(ip) = v6addr.ip().to_ipv4() {
-            return (ip, addr.port()).into();
+            return (ip, addr.port()).into()
         }
     }
     addr
 }
 
+
 pub struct Encoder;
 
 impl Encoder {
@@ -170,6 +172,7 @@ impl Encoder {
     }
 }
 
+
 macro_rules! fail {
     ($format:expr) => ( {
         use std::process;
@@ -212,14 +215,17 @@ pub fn get_internal_ip() -> Ipv4Addr {
     }
 }
 
+
 #[allow(unknown_lints, clippy::needless_pass_by_value)]
 pub fn resolve<Addr: ToSocketAddrs + fmt::Debug>(addr: Addr) -> Result<SmallVec<[SocketAddr; 4]>, Error> {
     let mut addrs =
         addr.to_socket_addrs().map_err(|_| Error::NameUnresolvable(format!("{:?}", addr)))?.collect::<SmallVec<_>>();
     // Try IPv4 first as it usually is faster
-    addrs.sort_by_key(|addr| match *addr {
+    addrs.sort_by_key(|addr| {
-        SocketAddr::V4(_) => 4,
+        match *addr {
-        SocketAddr::V6(_) => 6,
+            SocketAddr::V4(_) => 4,
+            SocketAddr::V6(_) => 6
+        }
     });
     // Remove duplicates in addrs (why are there duplicates???)
     addrs.dedup();
@@ -233,6 +239,7 @@ macro_rules! addr {
     }};
 }
 
+
 pub struct Bytes(pub u64);
 
 impl fmt::Display for Bytes {
@@ -241,30 +248,31 @@ impl fmt::Display for Bytes {
         if size >= 512.0 {
             size /= 1024.0;
         } else {
-            return write!(formatter, "{:.0} B", size);
+            return write!(formatter, "{:.0} B", size)
         }
         if size >= 512.0 {
             size /= 1024.0;
         } else {
-            return write!(formatter, "{:.1} KiB", size);
+            return write!(formatter, "{:.1} KiB", size)
         }
         if size >= 512.0 {
             size /= 1024.0;
         } else {
-            return write!(formatter, "{:.1} MiB", size);
+            return write!(formatter, "{:.1} MiB", size)
         }
         if size >= 512.0 {
             size /= 1024.0;
         } else {
-            return write!(formatter, "{:.1} GiB", size);
+            return write!(formatter, "{:.1} GiB", size)
         }
         write!(formatter, "{:.1} TiB", size)
     }
 }
 
+
 pub struct CtrlC {
     dummy_time: Instant,
-    trap: Trap,
+    trap: Trap
 }
 
 impl CtrlC {
@@ -285,6 +293,7 @@ impl Default for CtrlC {
     }
 }
 
+
 pub trait TimeSource: Sync + Copy + Send + 'static {
     fn now() -> Time;
 }
@@ -327,6 +336,7 @@ impl TimeSource for MockTimeSource {
     }
 }
 
+
 /// Helper function that multiplies the base62 data in buf[0..buflen] by 16 and adds m to it
 fn base62_add_mult_16(buf: &mut [u8], mut buflen: usize, m: u8) -> usize {
     let mut d: usize = m as usize;
@@ -346,7 +356,7 @@ fn base62_add_mult_16(buf: &mut [u8], mut buflen: usize, m: u8) -> usize {
 const BASE62: [char; 62] = [
     '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
     'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
-    'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+    'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'
 ];
 
 pub fn to_base62(data: &[u8]) -> String {
@@ -372,7 +382,7 @@ pub fn from_base62(data: &str) -> Result<Vec<u8>, char> {
             '0'..='9' => ((c as usize) % ('0' as usize)),
             'A'..='Z' => ((c as usize) % ('A' as usize)) + 10,
             'a'..='z' => ((c as usize) % ('a' as usize)) + 36,
-            _ => return Err(c),
+            _ => return Err(c)
         };
         for item in &mut buf {
             val += *item as usize * 62;
@@ -387,10 +397,11 @@ pub fn from_base62(data: &str) -> Result<Vec<u8>, char> {
     Ok(buf)
 }
 
+
 #[derive(Default)]
 pub struct StatsdMsg {
     entries: Vec<String>,
-    key: Vec<String>,
+    key: Vec<String>
 }
 
 impl StatsdMsg {
@@ -415,16 +426,6 @@ impl StatsdMsg {
     }
 }
 
-pub fn run_cmd(mut cmd: Command) {
-    match cmd.status() {
-        Ok(status) => {
-            if !status.success() {
-                error!("Command returned error: {:?}", status.code())
-            }
-        }
-        Err(e) => error!("Failed to execute command {:?}: {}", cmd, e),
-    }
-}
 
 #[test]
 fn base62() {