first commit
This commit is contained in:
commit
878414bfb7
6 changed files with 720 additions and 0 deletions
1
.gitignore
vendored
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1
.gitignore
vendored
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@ -0,0 +1 @@
|
|||
/target
|
||||
317
Cargo.lock
generated
Normal file
317
Cargo.lock
generated
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|
|
@ -0,0 +1,317 @@
|
|||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 3
|
||||
|
||||
[[package]]
|
||||
name = "aho-corasick"
|
||||
version = "0.7.20"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
|
||||
dependencies = [
|
||||
"memchr",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "anyhow"
|
||||
version = "1.0.69"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "224afbd727c3d6e4b90103ece64b8d1b67fbb1973b1046c2281eed3f3803f800"
|
||||
|
||||
[[package]]
|
||||
name = "atty"
|
||||
version = "0.2.14"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
|
||||
dependencies = [
|
||||
"hermit-abi",
|
||||
"libc",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "autocfg"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
|
||||
|
||||
[[package]]
|
||||
name = "bincode"
|
||||
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|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
|
||||
dependencies = [
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
version = "1.0.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
|
||||
|
||||
[[package]]
|
||||
name = "env_logger"
|
||||
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|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
|
||||
dependencies = [
|
||||
"atty",
|
||||
"humantime",
|
||||
"log",
|
||||
"regex",
|
||||
"termcolor",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "hashbrown"
|
||||
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|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
|
||||
|
||||
[[package]]
|
||||
name = "hermit-abi"
|
||||
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|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
|
||||
dependencies = [
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "humantime"
|
||||
version = "1.3.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"
|
||||
dependencies = [
|
||||
"quick-error",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "indexmap"
|
||||
version = "1.9.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399"
|
||||
dependencies = [
|
||||
"autocfg",
|
||||
"hashbrown",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "libc"
|
||||
version = "0.2.139"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
|
||||
|
||||
[[package]]
|
||||
name = "log"
|
||||
version = "0.4.17"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "memchr"
|
||||
version = "2.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
|
||||
|
||||
[[package]]
|
||||
name = "pretty_env_logger"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "926d36b9553851b8b0005f1275891b392ee4d2d833852c417ed025477350fb9d"
|
||||
dependencies = [
|
||||
"env_logger",
|
||||
"log",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "proc-macro2"
|
||||
version = "1.0.51"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5d727cae5b39d21da60fa540906919ad737832fe0b1c165da3a34d6548c849d6"
|
||||
dependencies = [
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "quick-error"
|
||||
version = "1.2.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
|
||||
|
||||
[[package]]
|
||||
name = "quote"
|
||||
version = "1.0.23"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "regex"
|
||||
version = "1.7.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "48aaa5748ba571fb95cd2c85c09f629215d3a6ece942baa100950af03a34f733"
|
||||
dependencies = [
|
||||
"aho-corasick",
|
||||
"memchr",
|
||||
"regex-syntax",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "regex-syntax"
|
||||
version = "0.6.28"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "456c603be3e8d448b072f410900c09faf164fbce2d480456f50eea6e25f9c848"
|
||||
|
||||
[[package]]
|
||||
name = "serde"
|
||||
version = "1.0.154"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8cdd151213925e7f1ab45a9bbfb129316bd00799784b174b7cc7bcd16961c49e"
|
||||
dependencies = [
|
||||
"serde_derive",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_derive"
|
||||
version = "1.0.154"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4fc80d722935453bcafdc2c9a73cd6fac4dc1938f0346035d84bf99fa9e33217"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_spanned"
|
||||
version = "0.6.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0efd8caf556a6cebd3b285caf480045fcc1ac04f6bd786b09a6f11af30c4fcf4"
|
||||
dependencies = [
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "1.0.109"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "termcolor"
|
||||
version = "1.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "be55cf8942feac5c765c2c993422806843c9a9a45d4d5c407ad6dd2ea95eb9b6"
|
||||
dependencies = [
|
||||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "toml"
|
||||
version = "0.7.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f7afcae9e3f0fe2c370fd4657108972cbb2fa9db1b9f84849cefd80741b01cb6"
|
||||
dependencies = [
|
||||
"serde",
|
||||
"serde_spanned",
|
||||
"toml_datetime",
|
||||
"toml_edit",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "toml_datetime"
|
||||
version = "0.6.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3ab8ed2edee10b50132aed5f331333428b011c99402b5a534154ed15746f9622"
|
||||
dependencies = [
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "toml_edit"
|
||||
version = "0.19.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9a1eb0622d28f4b9c90adc4ea4b2b46b47663fde9ac5fafcb14a1369d5508825"
|
||||
dependencies = [
|
||||
"indexmap",
|
||||
"serde",
|
||||
"serde_spanned",
|
||||
"toml_datetime",
|
||||
"winnow",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
version = "1.0.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
|
||||
|
||||
[[package]]
|
||||
name = "wgautomesh"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"anyhow",
|
||||
"bincode",
|
||||
"log",
|
||||
"pretty_env_logger",
|
||||
"serde",
|
||||
"toml",
|
||||
"xxhash-rust",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.3.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||
dependencies = [
|
||||
"winapi-i686-pc-windows-gnu",
|
||||
"winapi-x86_64-pc-windows-gnu",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-i686-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-util"
|
||||
version = "0.1.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
|
||||
dependencies = [
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
|
||||
[[package]]
|
||||
name = "winnow"
|
||||
version = "0.3.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ee7b2c67f962bf5042bfd8b6a916178df33a26eec343ae064cb8e069f638fa6f"
|
||||
dependencies = [
|
||||
"memchr",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "xxhash-rust"
|
||||
version = "0.8.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "735a71d46c4d68d71d4b24d03fdc2b98e38cea81730595801db779c04fe80d70"
|
||||
16
Cargo.toml
Normal file
16
Cargo.toml
Normal file
|
|
@ -0,0 +1,16 @@
|
|||
[package]
|
||||
name = "wgautomesh"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
xxhash-rust = { version = "0.8", default-features = false, features = ["xxh3"] }
|
||||
anyhow = "1.0"
|
||||
log = "0.4"
|
||||
pretty_env_logger = "0.4.0"
|
||||
|
||||
serde = { version = "1.0", features = ["derive"] }
|
||||
bincode = "1.3"
|
||||
toml = { version = "0.7", default-features = false, features = ["parse"] }
|
||||
2
Makefile
Normal file
2
Makefile
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
all:
|
||||
RUST_LOG=wgautomesh=debug cargo run -- config.toml
|
||||
2
config.toml
Normal file
2
config.toml
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
interface = "route48"
|
||||
gossip_port = 1134
|
||||
382
src/main.rs
Normal file
382
src/main.rs
Normal file
|
|
@ -0,0 +1,382 @@
|
|||
use std::collections::HashMap;
|
||||
use std::net::{IpAddr, SocketAddr, UdpSocket};
|
||||
use std::process::Command;
|
||||
use std::sync::Mutex;
|
||||
use std::thread;
|
||||
use std::time::Duration;
|
||||
|
||||
use anyhow::{bail, Result};
|
||||
use log::*;
|
||||
use serde::{Deserialize, Serialize};
|
||||
|
||||
/// Keep at most this many addresses for each peer
|
||||
const KEEP_MAX_ADDRESSES: usize = 5;
|
||||
/// Number of peers to gossip with
|
||||
const GOSSIP_PEERS: usize = 10;
|
||||
|
||||
/// Interval at which to try new addresses when disconnected (1 minute)
|
||||
const TRY_INTERVAL: Duration = Duration::from_secs(60);
|
||||
/// Time before a peer is considered dead (5 minutes)
|
||||
const TIMEOUT: Duration = Duration::from_secs(300);
|
||||
/// Interval at which to gossip last_seen info
|
||||
const GOSSIP_INTERVAL: Duration = Duration::from_secs(300);
|
||||
|
||||
type Pubkey = String;
|
||||
|
||||
#[derive(Deserialize)]
|
||||
struct Config {
|
||||
/// The Wireguard interface name
|
||||
interface: Pubkey,
|
||||
/// The port to use for gossip inside the Wireguard mesh (must be the same on all nodes)
|
||||
gossip_port: u16,
|
||||
/// The list of peers we try to connect to
|
||||
#[serde(default)]
|
||||
peers: Vec<Peer>,
|
||||
}
|
||||
|
||||
#[derive(Deserialize)]
|
||||
struct Peer {
|
||||
/// The peer's Wireguard public key
|
||||
pubkey: Pubkey,
|
||||
/// The peer's Wireguard address
|
||||
address: IpAddr,
|
||||
/// An optionnal Wireguard endpoint used to initialize a connection to this peer
|
||||
endpoint: Option<SocketAddr>,
|
||||
}
|
||||
|
||||
fn main() -> Result<()> {
|
||||
pretty_env_logger::init();
|
||||
|
||||
let args: Vec<String> = std::env::args().collect();
|
||||
|
||||
let config_path = match args.len() {
|
||||
0 | 1 => "/etc/wgautomesh.toml",
|
||||
2 => &args[1],
|
||||
_ => bail!(
|
||||
"Usage: {} [path_to_config_file]",
|
||||
args.get(0).map(String::as_str).unwrap_or("wgautomesh")
|
||||
),
|
||||
};
|
||||
|
||||
let config: Config = {
|
||||
let config_str = std::fs::read_to_string(config_path)?;
|
||||
toml::from_str(&config_str)?
|
||||
};
|
||||
|
||||
Daemon::new(config)?.run()
|
||||
}
|
||||
|
||||
// ============ UTIL =================
|
||||
|
||||
fn time() -> u64 {
|
||||
std::time::SystemTime::now()
|
||||
.duration_since(std::time::SystemTime::UNIX_EPOCH)
|
||||
.unwrap()
|
||||
.as_secs()
|
||||
}
|
||||
|
||||
fn fasthash(data: &[u8]) -> u64 {
|
||||
use xxhash_rust::xxh3::Xxh3;
|
||||
|
||||
let mut h = Xxh3::new();
|
||||
h.update(data);
|
||||
h.digest()
|
||||
}
|
||||
|
||||
fn wg_dump(config: &Config) -> Result<(Pubkey, Vec<(Pubkey, Option<SocketAddr>, u64)>)> {
|
||||
let output = Command::new("sudo")
|
||||
.args(["wg", "show", &config.interface, "dump"])
|
||||
.output()?;
|
||||
let mut lines = std::str::from_utf8(&output.stdout)?.split('\n');
|
||||
|
||||
let ourself = lines.next().unwrap().split('\t').collect::<Vec<_>>();
|
||||
let our_pubkey = ourself[1].to_string();
|
||||
|
||||
let peers = lines
|
||||
.filter_map(|line| {
|
||||
let fields = line.split('\t').collect::<Vec<_>>();
|
||||
if fields.len() < 5 {
|
||||
None
|
||||
} else {
|
||||
Some((
|
||||
fields[0].to_string(),
|
||||
fields[2].parse::<SocketAddr>().ok(),
|
||||
fields[4].parse::<u64>().unwrap(),
|
||||
))
|
||||
}
|
||||
})
|
||||
.collect::<Vec<_>>();
|
||||
|
||||
Ok((our_pubkey, peers))
|
||||
}
|
||||
|
||||
// ============ DAEMON CODE =================
|
||||
|
||||
struct Daemon {
|
||||
config: Config,
|
||||
ourself: Pubkey,
|
||||
socket: UdpSocket,
|
||||
state: Mutex<State>,
|
||||
}
|
||||
|
||||
struct PeerInfo {
|
||||
endpoint: Option<SocketAddr>,
|
||||
last_seen: u64,
|
||||
gossip_ip: IpAddr,
|
||||
gossip_prio: u64,
|
||||
}
|
||||
|
||||
#[derive(Serialize, Deserialize, Debug)]
|
||||
enum Gossip {
|
||||
Announce {
|
||||
pubkey: Pubkey,
|
||||
endpoints: Vec<(SocketAddr, u64)>,
|
||||
},
|
||||
Request,
|
||||
}
|
||||
|
||||
impl Daemon {
|
||||
fn new(config: Config) -> Result<Self> {
|
||||
let (ourself, _peers) = wg_dump(&config)?;
|
||||
let socket = UdpSocket::bind(SocketAddr::new("0.0.0.0".parse()?, config.gossip_port))?;
|
||||
Ok(Daemon {
|
||||
config,
|
||||
ourself,
|
||||
socket,
|
||||
state: Mutex::new(State {
|
||||
peers: HashMap::new(),
|
||||
gossip: HashMap::new(),
|
||||
}),
|
||||
})
|
||||
}
|
||||
|
||||
fn run(&self) -> Result<()> {
|
||||
let request = bincode::serialize(&Gossip::Request)?;
|
||||
for peer in self.config.peers.iter() {
|
||||
let addr = SocketAddr::new(peer.address, self.config.gossip_port);
|
||||
self.socket.send_to(&request, addr)?;
|
||||
}
|
||||
|
||||
thread::scope(|s| {
|
||||
s.spawn(|| self.wg_loop());
|
||||
s.spawn(|| self.recv_loop());
|
||||
});
|
||||
unreachable!()
|
||||
}
|
||||
|
||||
fn wg_loop(&self) -> ! {
|
||||
let mut i = 0;
|
||||
loop {
|
||||
if let Err(e) = self.wg_loop_iter(i) {
|
||||
error!("Wg loop error: {}", e);
|
||||
}
|
||||
i = i + 1;
|
||||
std::thread::sleep(TRY_INTERVAL);
|
||||
}
|
||||
}
|
||||
|
||||
fn wg_loop_iter(&self, i: usize) -> Result<()> {
|
||||
let (_, wg_peers) = wg_dump(&self.config)?;
|
||||
let mut state = self.state.lock().unwrap();
|
||||
|
||||
// 1. Update local peers info of peers
|
||||
for (pk, endpoint, last_seen) in wg_peers {
|
||||
match state.peers.get_mut(&pk) {
|
||||
Some(i) => {
|
||||
i.endpoint = endpoint;
|
||||
i.last_seen = last_seen;
|
||||
}
|
||||
None => {
|
||||
let gossip_ip = match self.config.peers.iter().find(|x| x.pubkey == pk) {
|
||||
Some(x) => x.address,
|
||||
None => continue,
|
||||
};
|
||||
let gossip_prio = fasthash(format!("{}-{}", self.ourself, pk).as_bytes());
|
||||
state.peers.insert(
|
||||
pk,
|
||||
PeerInfo {
|
||||
endpoint,
|
||||
gossip_prio,
|
||||
gossip_ip,
|
||||
last_seen,
|
||||
},
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// 2. Send gossip for peers where there is a big update
|
||||
let announces = state
|
||||
.peers
|
||||
.iter()
|
||||
.filter_map(|(pk, info)| info.endpoint.map(|ip| (pk, ip, info.last_seen)))
|
||||
.filter(|(pk, ip, last_seen)| {
|
||||
!state
|
||||
.gossip
|
||||
.get(pk.as_str())
|
||||
.unwrap_or(&vec![])
|
||||
.iter()
|
||||
.any(|(a, t)| a == ip && *last_seen > t + GOSSIP_INTERVAL.as_secs())
|
||||
})
|
||||
.map(|(pk, ip, last_seen)| (pk.to_string(), vec![(ip, last_seen)]))
|
||||
.collect::<Vec<_>>();
|
||||
|
||||
for (pubkey, endpoints) in announces {
|
||||
state.handle_announce(self, pubkey, endpoints)?;
|
||||
}
|
||||
|
||||
// 3. Try new address for disconnected peers
|
||||
let now = time();
|
||||
for peer in self.config.peers.iter() {
|
||||
// Skip peer if it is in connected state
|
||||
if state
|
||||
.peers
|
||||
.get(&peer.pubkey)
|
||||
.map(|x| now < x.last_seen + TIMEOUT.as_secs())
|
||||
.unwrap_or(false)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
let mut endpoints = state.gossip.get(&peer.pubkey).cloned().unwrap_or_default();
|
||||
if endpoints.is_empty() {
|
||||
if let Some(endpoint) = peer.endpoint {
|
||||
endpoints.push((endpoint, 0));
|
||||
}
|
||||
}
|
||||
endpoints.sort();
|
||||
if !endpoints.is_empty() {
|
||||
let endpoint = endpoints[i % endpoints.len()];
|
||||
info!("Configure {} with endpoint {}", peer.pubkey, endpoint.0);
|
||||
Command::new("sudo")
|
||||
.args([
|
||||
"wg",
|
||||
"set",
|
||||
&self.config.interface,
|
||||
"peer",
|
||||
&peer.pubkey,
|
||||
"endpoint",
|
||||
&endpoint.0.to_string(),
|
||||
"persistent-keepalive",
|
||||
"20",
|
||||
])
|
||||
.output()?;
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn recv_loop(&self) -> ! {
|
||||
loop {
|
||||
if let Err(e) = self.recv_loop_iter() {
|
||||
error!("Receive loop error: {}", e);
|
||||
std::thread::sleep(Duration::from_secs(10));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn recv_loop_iter(&self) -> Result<()> {
|
||||
let (from, gossip) = self.recv_gossip()?;
|
||||
let mut state = self.state.lock().unwrap();
|
||||
match gossip {
|
||||
Gossip::Announce { pubkey, endpoints } => {
|
||||
state.handle_announce(self, pubkey, endpoints)?;
|
||||
}
|
||||
Gossip::Request => {
|
||||
for (pubkey, endpoints) in state.gossip.iter() {
|
||||
let packet = bincode::serialize(&Gossip::Announce {
|
||||
pubkey: pubkey.clone(),
|
||||
endpoints: endpoints.clone(),
|
||||
})?;
|
||||
self.socket.send_to(&packet, from)?;
|
||||
}
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn recv_gossip(&self) -> Result<(SocketAddr, Gossip)> {
|
||||
let mut buf = vec![0u8; 1500];
|
||||
let (amt, src) = self.socket.recv_from(&mut buf)?;
|
||||
if !self.config.peers.iter().any(|x| x.address == src.ip()) {
|
||||
bail!("Received message from unexpected peer: {}", src);
|
||||
}
|
||||
let gossip = bincode::deserialize(&buf[..amt])?;
|
||||
debug!("RECV {}\t{:?}", src, gossip);
|
||||
Ok((src, gossip))
|
||||
}
|
||||
}
|
||||
|
||||
struct State {
|
||||
peers: HashMap<Pubkey, PeerInfo>,
|
||||
gossip: HashMap<Pubkey, Vec<(SocketAddr, u64)>>,
|
||||
}
|
||||
|
||||
impl State {
|
||||
fn send_gossip(&self, daemon: &Daemon, gossip: Gossip) -> Result<()> {
|
||||
let packet = bincode::serialize(&gossip)?;
|
||||
|
||||
let now = time();
|
||||
|
||||
let mut peer_vec = self
|
||||
.peers
|
||||
.iter()
|
||||
.filter(|(_, info)| now < info.last_seen + TIMEOUT.as_secs() && info.endpoint.is_some())
|
||||
.map(|(_, info)| (info.gossip_ip, info.gossip_prio))
|
||||
.collect::<Vec<_>>();
|
||||
peer_vec.sort_by_key(|(_, prio)| *prio);
|
||||
|
||||
for (gossip_ip, _) in peer_vec.into_iter().take(GOSSIP_PEERS) {
|
||||
let addr = SocketAddr::new(gossip_ip, daemon.config.gossip_port);
|
||||
debug!("SEND {}\t{:?}", addr, gossip);
|
||||
daemon.socket.send_to(&packet, addr)?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn handle_announce(
|
||||
&mut self,
|
||||
daemon: &Daemon,
|
||||
pubkey: Pubkey,
|
||||
mut endpoints: Vec<(SocketAddr, u64)>,
|
||||
) -> Result<()> {
|
||||
let propagate = {
|
||||
match self.gossip.get_mut(&pubkey) {
|
||||
Some(existing) => {
|
||||
let mut has_new = false;
|
||||
for (new_addr, new_t) in endpoints {
|
||||
if !existing
|
||||
.iter()
|
||||
.any(|(addr, t)| *addr == new_addr && *t >= new_t)
|
||||
{
|
||||
existing.retain(|(addr, _)| *addr != new_addr);
|
||||
existing.push((new_addr, new_t));
|
||||
has_new = true;
|
||||
}
|
||||
}
|
||||
if has_new {
|
||||
existing.sort_by_key(|(_, t)| *t);
|
||||
existing.truncate(KEEP_MAX_ADDRESSES);
|
||||
Some(Gossip::Announce {
|
||||
pubkey,
|
||||
endpoints: existing.clone(),
|
||||
})
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
None => {
|
||||
endpoints.truncate(KEEP_MAX_ADDRESSES);
|
||||
self.gossip.insert(pubkey.clone(), endpoints.clone());
|
||||
Some(Gossip::Announce { pubkey, endpoints })
|
||||
}
|
||||
}
|
||||
};
|
||||
if let Some(propagate) = propagate {
|
||||
info!("Propagating announce: {:?}", propagate);
|
||||
self.send_gossip(daemon, propagate)?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue