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Merge branch 'master' into threading

This commit is contained in:
Dennis Schwerdel 2021-01-26 19:36:50 +01:00
parent 48927b2f48 e150443891
commit 780cdb6bfe
12 changed files with 272 additions and 203 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
.github/workflows/package.yml vendored
View File

@ -11,7 +11,7 @@ jobs:
- name: Run builder - name: Run builder
uses: ./.github/actions/build-deb uses: ./.github/actions/build-deb
with: with:
rust: '1.48.0' rust: '1.49.0'
- name: Archive artifacts - name: Archive artifacts
uses: actions/upload-artifact@v1 uses: actions/upload-artifact@v1
with: with:
@ -31,7 +31,7 @@ jobs:
- name: Run builder - name: Run builder
uses: ./.github/actions/build-rpm uses: ./.github/actions/build-rpm
with: with:
rust: '1.48.0' rust: '1.49.0'
- name: Archive artifacts - name: Archive artifacts
uses: actions/upload-artifact@v1 uses: actions/upload-artifact@v1
with: with:

6
CHANGELOG.md
View File

@ -4,9 +4,11 @@ This project follows [semantic versioning](http://semver.org).
### UNRELEASED ### UNRELEASED
- [added] Support for creating shell completions
- [added] Support for hook scripts to handle certain situations
- [removed] Removed dummy device type - [removed] Removed dummy device type
- [changed] Updated depdendencies - [changed] Updated dependencies
- [changed] Changed Rust version to 1.48.0 - [changed] Changed Rust version to 1.49.0
- [fixed] Added missing peer address propagation - [fixed] Added missing peer address propagation
### v2.0.1 (2020-11-07) ### v2.0.1 (2020-11-07)

225
Cargo.lock generated
View File

@ -11,9 +11,9 @@ dependencies = [
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@ -52,21 +52,21 @@ checksum = "5988cb1d626264ac94100be357308f29ff7cbdd3b36bda27f450a4ee3f713426"
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@ -147,49 +147,38 @@ dependencies = [
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@ -215,7 +204,7 @@ checksum = "4c4e7ee8b51e541486d7040883fe1f00e2a9954bcc24fd155b7e4f03ed4b93dd"
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@ -231,15 +220,15 @@ dependencies = [
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@ -252,15 +241,15 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
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[[package]] [[package]]
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@ -273,9 +262,9 @@ dependencies = [
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@ -405,46 +394,23 @@ dependencies = [
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@ -454,34 +420,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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@ -490,14 +438,17 @@ version = "0.3.0"
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@ -561,15 +512,18 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
[[package]] [[package]]
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@ -578,9 +532,9 @@ dependencies = [
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@ -629,9 +583,9 @@ checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
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@ -717,9 +671,9 @@ dependencies = [
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version = "0.9.0+wasi-snapshot-preview1" version = "0.10.1+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519" checksum = "93c6c3420963c5c64bca373b25e77acb562081b9bb4dd5bb864187742186cea9"
[[package]] [[package]]
name = "wasm-bindgen" name = "wasm-bindgen"
version = "0.2.69" version = "0.2.70"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3cd364751395ca0f68cafb17666eee36b63077fb5ecd972bbcd74c90c4bf736e" checksum = "55c0f7123de74f0dab9b7d00fd614e7b19349cd1e2f5252bbe9b1754b59433be"
dependencies = [ dependencies = [
"cfg-if 1.0.0", "cfg-if 1.0.0",
"wasm-bindgen-macro", "wasm-bindgen-macro",
@ -938,9 +891,9 @@ dependencies = [
[[package]] [[package]]
name = "wasm-bindgen-backend" name = "wasm-bindgen-backend"
version = "0.2.69" version = "0.2.70"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1114f89ab1f4106e5b55e688b828c0ab0ea593a1ea7c094b141b14cbaaec2d62" checksum = "7bc45447f0d4573f3d65720f636bbcc3dd6ce920ed704670118650bcd47764c7"
dependencies = [ dependencies = [
"bumpalo", "bumpalo",
"lazy_static", "lazy_static",
@ -953,9 +906,9 @@ dependencies = [
[[package]] [[package]]
name = "wasm-bindgen-macro" name = "wasm-bindgen-macro"
version = "0.2.69" version = "0.2.70"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7a6ac8995ead1f084a8dea1e65f194d0973800c7f571f6edd70adf06ecf77084" checksum = "3b8853882eef39593ad4174dd26fc9865a64e84026d223f63bb2c42affcbba2c"
dependencies = [ dependencies = [
"quote", "quote",
"wasm-bindgen-macro-support", "wasm-bindgen-macro-support",
@ -963,9 +916,9 @@ dependencies = [
[[package]] [[package]]
name = "wasm-bindgen-macro-support" name = "wasm-bindgen-macro-support"
version = "0.2.69" version = "0.2.70"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b5a48c72f299d80557c7c62e37e7225369ecc0c963964059509fbafe917c7549" checksum = "4133b5e7f2a531fa413b3a1695e925038a05a71cf67e87dafa295cb645a01385"
dependencies = [ dependencies = [
"proc-macro2", "proc-macro2",
"quote", "quote",
@ -976,15 +929,15 @@ dependencies = [
[[package]] [[package]]
name = "wasm-bindgen-shared" name = "wasm-bindgen-shared"
version = "0.2.69" version = "0.2.70"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7e7811dd7f9398f14cc76efd356f98f03aa30419dea46aa810d71e819fc97158" checksum = "dd4945e4943ae02d15c13962b38a5b1e81eadd4b71214eee75af64a4d6a4fd64"
[[package]] [[package]]
name = "web-sys" name = "web-sys"
version = "0.3.46" version = "0.3.47"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "222b1ef9334f92a21d3fb53dc3fd80f30836959a90f9274a626d7e06315ba3c3" checksum = "c40dc691fc48003eba817c38da7113c15698142da971298003cac3ef175680b3"
dependencies = [ dependencies = [
"js-sys", "js-sys",
"wasm-bindgen", "wasm-bindgen",
@ -992,9 +945,9 @@ dependencies = [
[[package]] [[package]]
name = "wildmatch" name = "wildmatch"
version = "1.0.12" version = "1.0.13"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "79346daa5ca66c72db46ee4dac6e605811478ae0807b385d18328be3f5c0eb74" checksum = "d2399814fda0d6999a6bfe9b5c7660d836334deb162a09db8b73d5b38fd8c40a"
[[package]] [[package]]
name = "winapi" name = "winapi"

5
Cargo.toml
View File

@ -14,8 +14,7 @@ edition = "2018"
[dependencies] [dependencies]
time = "=0.2.22" time = "=0.2.22"
structopt = "0.3" structopt = "0.3"
serde = "1.0" serde = { version = "1.0", features = ["derive"] }
serde_derive = "1.0"
serde_yaml = "0.8" serde_yaml = "0.8"
log = { version = "0.4", features = ["std"] } log = { version = "0.4", features = ["std"] }
signal = "0.7" signal = "0.7"
@ -27,7 +26,7 @@ igd = { version = "0.12", optional = true }
daemonize = "0.4" daemonize = "0.4"
ring = "0.16" ring = "0.16"
privdrop = "0.5" privdrop = "0.5"
byteorder = "1.3" byteorder = "1.4"
thiserror = "1.0" thiserror = "1.0"
parking_lot = "*" parking_lot = "*"
smallvec = "1.6" smallvec = "1.6"

2
builder/Dockerfile-deb
View File

@ -19,7 +19,7 @@ RUN useradd -ms /bin/bash user
USER user USER user
WORKDIR /home/user WORKDIR /home/user
ENV RUST=1.48.0 ENV RUST=1.49.0
RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain ${RUST} RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain ${RUST}

2
builder/Dockerfile-rpm
View File

@ -7,7 +7,7 @@ RUN useradd -ms /bin/bash user
USER user USER user
WORKDIR /home/user WORKDIR /home/user
ENV RUST=1.48.0 ENV RUST=1.49.0
RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain ${RUST} RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain ${RUST}

97
src/config.rs
View File

@ -4,18 +4,20 @@
use super::{device::Type, types::Mode, util::Duration}; use super::{device::Type, types::Mode, util::Duration};
pub use crate::crypto::Config as CryptoConfig; pub use crate::crypto::Config as CryptoConfig;
use crate::util::run_cmd;
use std::{ use std::{
cmp::max, cmp::max,
net::{IpAddr, Ipv6Addr, SocketAddr} collections::HashMap,
ffi::OsStr,
net::{IpAddr, Ipv6Addr, SocketAddr},
process::Command,
thread
}; };
use structopt::StructOpt; use structopt::{clap::Shell, StructOpt};
pub const DEFAULT_PEER_TIMEOUT: u16 = 300; pub const DEFAULT_PEER_TIMEOUT: u16 = 300;
pub const DEFAULT_PORT: u16 = 3210; pub const DEFAULT_PORT: u16 = 3210;
fn parse_listen(addr: &str) -> SocketAddr { fn parse_listen(addr: &str) -> SocketAddr {
if let Some(addr) = addr.strip_prefix("*:") { if let Some(addr) = addr.strip_prefix("*:") {
let port = try_fail!(addr.parse::<u16>(), "Invalid port: {}"); let port = try_fail!(addr.parse::<u16>(), "Invalid port: {}");
@ -60,7 +62,9 @@ pub struct Config {
pub statsd_server: Option<String>, pub statsd_server: Option<String>,
pub statsd_prefix: Option<String>, pub statsd_prefix: Option<String>,
pub user: 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 { impl Default for Config {
@ -93,7 +97,9 @@ impl Default for Config {
statsd_server: None, statsd_server: None,
statsd_prefix: None, statsd_prefix: None,
user: None, user: None,
group: None group: None,
hook: None,
hooks: HashMap::new()
} }
} }
} }
@ -198,6 +204,12 @@ impl Config {
if !file.crypto.algorithms.is_empty() { if !file.crypto.algorithms.is_empty() {
self.crypto.algorithms = file.crypto.algorithms.clone(); 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) { pub fn merge_args(&mut self, mut args: Args) {
@ -291,6 +303,16 @@ impl Config {
if !args.algorithms.is_empty() { if !args.algorithms.is_empty() {
self.crypto.algorithms = args.algorithms.clone(); 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 { pub fn get_keepalive(&self) -> Duration {
@ -299,8 +321,31 @@ impl Config {
None => max(self.peer_timeout / 2 - 60, 1) 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)] #[derive(StructOpt, Debug, Default)]
pub struct Args { pub struct Args {
@ -325,7 +370,7 @@ pub struct Args {
pub mode: Option<Mode>, pub mode: Option<Mode>,
/// The shared password to encrypt all traffic /// The shared password to encrypt all traffic
#[structopt(short, long, required_unless_one = &["private-key", "config", "genkey", "version"], env)] #[structopt(short, long, required_unless_one = &["private-key", "config", "genkey", "version", "completion"], env)]
pub password: Option<String>, pub password: Option<String>,
/// The private key to use /// The private key to use
@ -458,7 +503,15 @@ pub struct Args {
/// Migrate an old config file /// Migrate an old config file
#[structopt(long, alias = "migrate", requires = "config")] #[structopt(long, alias = "migrate", requires = "config")]
pub migrate_config: bool pub migrate_config: bool,
/// Generate shell completions
#[structopt(long)]
pub completion: Option<Shell>,
/// Call script on event
#[structopt(long)]
pub hook: Vec<String>
} }
#[derive(Serialize, Deserialize, Debug, PartialEq, Default)] #[derive(Serialize, Deserialize, Debug, PartialEq, Default)]
@ -512,10 +565,11 @@ pub struct ConfigFile {
pub stats_file: Option<String>, pub stats_file: Option<String>,
pub statsd: Option<ConfigFileStatsd>, pub statsd: Option<ConfigFileStatsd>,
pub user: Option<String>, pub user: Option<String>,
pub group: Option<String> pub group: Option<String>,
pub hook: Option<String>,
pub hooks: HashMap<String, String>
} }
#[test] #[test]
fn config_file() { fn config_file() {
let config_file = " let config_file = "
@ -582,7 +636,9 @@ statsd:
statsd: Some(ConfigFileStatsd { statsd: Some(ConfigFileStatsd {
server: Some("example.com:1234".to_string()), server: Some("example.com:1234".to_string()),
prefix: Some("prefix".to_string()) prefix: Some("prefix".to_string())
}) }),
hook: None,
hooks: HashMap::new()
}) })
} }
@ -616,9 +672,12 @@ fn default_config_as_default() {
statsd_server: None, statsd_server: None,
statsd_prefix: None, statsd_prefix: None,
user: None, user: None,
group: None group: None,
hook: None,
hooks: HashMap::new()
}; };
let default_config_file = serde_yaml::from_str::<ConfigFile>(include_str!("../assets/example.net.disabled")).unwrap(); let default_config_file =
serde_yaml::from_str::<ConfigFile>(include_str!("../assets/example.net.disabled")).unwrap();
default_config.merge_file(default_config_file); default_config.merge_file(default_config_file);
assert_eq!(default_config, Config::default()); assert_eq!(default_config, Config::default());
} }
@ -659,7 +718,9 @@ fn config_merge() {
statsd: Some(ConfigFileStatsd { statsd: Some(ConfigFileStatsd {
server: Some("example.com:1234".to_string()), server: Some("example.com:1234".to_string()),
prefix: Some("prefix".to_string()) prefix: Some("prefix".to_string())
}) }),
hook: None,
hooks: HashMap::new()
}); });
assert_eq!(config, Config { assert_eq!(config, Config {
device_type: Type::Tun, device_type: Type::Tun,
@ -748,6 +809,8 @@ fn config_merge() {
stats_file: Some("/var/log/vpncloud-mynet.stats".to_string()), stats_file: Some("/var/log/vpncloud-mynet.stats".to_string()),
statsd_server: Some("example.com:2345".to_string()), statsd_server: Some("example.com:2345".to_string()),
statsd_prefix: Some("prefix2".to_string()), statsd_prefix: Some("prefix2".to_string()),
daemonize: true daemonize: true,
hook: None,
hooks: HashMap::new()
}); });
} }

6
src/device.rs
View File

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

53
src/engine/mod.rs
View File

@ -30,7 +30,8 @@ use crate::{
device::{Device, Type}, device::{Device, Type},
error::Error, error::Error,
messages::{ messages::{
AddrList, NodeInfo, PeerInfo, MESSAGE_TYPE_CLOSE, MESSAGE_TYPE_DATA, MESSAGE_TYPE_KEEPALIVE, MESSAGE_TYPE_NODE_INFO AddrList, NodeInfo, PeerInfo, MESSAGE_TYPE_CLOSE, MESSAGE_TYPE_DATA, MESSAGE_TYPE_KEEPALIVE,
MESSAGE_TYPE_NODE_INFO
}, },
net::{mapped_addr, Socket}, net::{mapped_addr, Socket},
payload::Protocol, payload::Protocol,
@ -39,7 +40,7 @@ use crate::{
table::ClaimTable, table::ClaimTable,
traffic::TrafficStats, traffic::TrafficStats,
types::{Address, Mode, NodeId, Range, RangeList}, types::{Address, Mode, NodeId, Range, RangeList},
util::{addr_nice, resolve, CtrlC, Duration, MsgBuffer, StatsdMsg, Time, TimeSource} util::{addr_nice, bytes_to_hex, resolve, CtrlC, Duration, MsgBuffer, StatsdMsg, Time, TimeSource}
}; };
pub type Hash = BuildHasherDefault<FnvHasher>; pub type Hash = BuildHasherDefault<FnvHasher>;
@ -129,6 +130,9 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
info!("Auto-claiming {} due to interface address", range); info!("Auto-claiming {} due to interface address", range);
claims.push(range); claims.push(range);
} }
Err(Error::DeviceIo(_, e)) if e.kind() == io::ErrorKind::AddrNotAvailable => {
info!("No address set on interface.")
}
Err(e) => error!("{}", e) Err(e) => error!("{}", e)
} }
} }
@ -229,6 +233,7 @@ 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_internal_ip().into());
self.own_addresses.push(pfw.get_external_ip().into()); self.own_addresses.push(pfw.get_external_ip().into());
} }
// TODO: detect address changes and call event
Ok(()) Ok(())
} }
@ -283,6 +288,13 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
return Ok(()) 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 // Send a message to each resolved address
for a in addrs { for a in addrs {
// Ignore error this time // Ignore error this time
@ -458,6 +470,7 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
self.next_stats_out = now + STATS_INTERVAL; self.next_stats_out = now + STATS_INTERVAL;
self.traffic.period(Some(5)); self.traffic.period(Some(5));
} }
// TODO: every 5 minutes: EVENT periodic
if let Some(peers) = self.beacon_serializer.get_cmd_results() { if let Some(peers) = self.beacon_serializer.get_cmd_results() {
debug!("Loaded beacon with peers: {:?}", peers); debug!("Loaded beacon with peers: {:?}", peers);
for peer in peers { for peer in peers {
@ -632,6 +645,16 @@ 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> { fn add_new_peer(&mut self, addr: SocketAddr, info: NodeInfo) -> Result<(), Error> {
info!("Added peer {}", addr_nice(addr)); 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) { if let Some(init) = self.pending_inits.remove(&addr) {
self.peers.insert(addr, PeerData { self.peers.insert(addr, PeerData {
addrs: info.addrs.clone(), addrs: info.addrs.clone(),
@ -649,9 +672,18 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
} }
fn remove_peer(&mut self, addr: SocketAddr) { 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)); info!("Closing connection to {}", addr_nice(addr));
self.table.remove_claims(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
);
} }
} }
@ -765,6 +797,14 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
let msg_result = init.handle_message(data); let msg_result = init.handle_message(data);
match msg_result { match msg_result {
Ok(res) => { 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); self.pending_inits.insert(src, init);
Ok(res) Ok(res)
} }
@ -804,6 +844,11 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
debug!("Fatal crypto init error from {}: {}", src, e); debug!("Fatal crypto init error from {}: {}", src, e);
info!("Closing pending connection to {} due to error in crypto init", addr_nice(src)); info!("Closing pending connection to {} due to error in crypto init", addr_nice(src));
self.pending_inits.remove(&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(_)) => { Err(e @ Error::CryptoInit(_)) => {
debug!("Recoverable init error from {}: {}", src, e); debug!("Recoverable init error from {}: {}", src, e);
@ -835,6 +880,7 @@ 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 waiter = try_fail!(WaitImpl::new(&self.socket, &self.device, 1000), "Failed to setup poll: {}");
let mut buffer = MsgBuffer::new(SPACE_BEFORE); let mut buffer = MsgBuffer::new(SPACE_BEFORE);
let mut poll_error = false; let mut poll_error = false;
self.config.call_hook("vpn_started", vec![("IFNAME", self.device.ifname())], true);
for evt in waiter { for evt in waiter {
match evt { match evt {
WaitResult::Error(err) => { WaitResult::Error(err) => {
@ -860,6 +906,7 @@ impl<D: Device, P: Protocol, S: Socket, TS: TimeSource> GenericCloud<D, P, S, TS
} }
} }
info!("Shutting down..."); info!("Shutting down...");
self.config.call_hook("vpn_shutdown", vec![("IFNAME", self.device.ifname())], true);
buffer.clear(); buffer.clear();
self.broadcast_msg(MESSAGE_TYPE_CLOSE, &mut buffer).ok(); self.broadcast_msg(MESSAGE_TYPE_CLOSE, &mut buffer).ok();
if let Some(ref path) = self.config.beacon_store { if let Some(ref path) = self.config.beacon_store {

8
src/main.rs
View File

@ -5,7 +5,7 @@
#![cfg_attr(feature = "bench", feature(test))] #![cfg_attr(feature = "bench", feature(test))]
#[macro_use] extern crate log; #[macro_use] extern crate log;
#[macro_use] extern crate serde_derive; #[macro_use] extern crate serde;
#[cfg(test)] extern crate tempfile; #[cfg(test)] extern crate tempfile;
#[cfg(feature = "bench")] extern crate test; #[cfg(feature = "bench")] extern crate test;
@ -140,6 +140,7 @@ fn setup_device(config: &Config) -> TunTapDevice {
config.device_name config.device_name
); );
info!("Opened device {}", device.ifname()); info!("Opened device {}", device.ifname());
config.call_hook("device_setup", vec![("IFNAME", device.ifname())], true);
if let Err(err) = device.set_mtu(None) { if let Err(err) = device.set_mtu(None) {
error!("Error setting optimal MTU on {}: {}", device.ifname(), err); error!("Error setting optimal MTU on {}: {}", device.ifname(), err);
} }
@ -159,6 +160,7 @@ 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); 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 device
} }
@ -234,6 +236,10 @@ fn main() {
); );
return return
} }
if let Some(shell) = args.completion {
Args::clap().gen_completions_to(env!("CARGO_PKG_NAME"), shell, &mut io::stdout());
return
}
let logger = try_fail!(DualLogger::new(args.log_file.as_ref()), "Failed to open logfile: {}"); let logger = try_fail!(DualLogger::new(args.log_file.as_ref()), "Failed to open logfile: {}");
log::set_boxed_logger(Box::new(logger)).unwrap(); log::set_boxed_logger(Box::new(logger)).unwrap();
assert!(!args.verbose || !args.quiet); assert!(!args.verbose || !args.quiet);

10
src/oldconfig.rs
View File

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

53
src/util.rs
View File

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