Initial commit: Project structure, Coordinator Server v1.0.0, and Documentation

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Claude Code committed 2026-09-30 21:27:02 -04:00
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"windows_x86_64_gnu",
"windows_x86_64_gnullvm",
"windows_x86_64_msvc",
]
[[package]]
name = "windows_aarch64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
[[package]]
name = "windows_aarch64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
[[package]]
name = "windows_i686_gnu"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
[[package]]
name = "windows_i686_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
[[package]]
name = "windows_i686_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
[[package]]
name = "windows_x86_64_gnu"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
[[package]]
name = "windows_x86_64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
[[package]]
name = "wit-bindgen"
version = "0.57.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1ebf944e87a7c253233ad6766e082e3cd714b5d03812acc24c318f549614536e"
[[package]]
name = "zeroize"
version = "1.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e13c156562582aa81c60cb29407084cdb54c4164760106ab78e6c5b0858cf64e"
+12
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@@ -0,0 +1,12 @@
[package]
name = "rust-data-plane"
version = "0.1.0"
edition = "2021"
[dependencies]
tokio = { version = "1", features = ["rt", "net", "macros"] }
bytes = "1.5"
crossbeam-queue = "0.3"
log = "0.4"
env_logger = "0.10"
snow = "0.10.0"
@@ -0,0 +1,9 @@
[package]
name = "udp-hole-punch"
version = "0.1.0"
edition = "2021"
[dependencies]
tokio = { version = "1", features = ["full"] }
byteorder = "1.5"
rand = "0.8"
@@ -0,0 +1,105 @@
use std::net::SocketAddr;
use tokio::net::UdpSocket;
use byteorder::{BigEndian, WriteBytesExt};
use rand::RngCore;
use std::sync::Arc;
use tokio::time::{sleep, Duration};
async fn get_public_addr(socket: &UdpSocket, stun_server: &str) -> Result<SocketAddr, Box<dyn std::error::Error>> {
let mut request = Vec::with_capacity(20);
request.write_u16::<BigEndian>(0x0001)?;
request.write_u16::<BigEndian>(0)?;
request.write_u32::<BigEndian>(0x2112A442)?;
let mut transaction_id = [0u8; 12];
rand::thread_rng().fill_bytes(&mut transaction_id);
request.extend_from_slice(&transaction_id);
socket.send_to(&request, stun_server).await?;
let mut buf = [0u8; 1024];
let (len, _) = socket.recv_from(&mut buf).await?;
if len < 20 { return Err("Response too short".into()); }
if u16::from_be_bytes([buf[0], buf[1]]) != 0x0101 { return Err("Not a binding response".into()); }
let mut pos = 20;
while pos + 4 <= len {
let attr_type = u16::from_be_bytes([buf[pos], buf[pos+1]]);
let attr_len = u16::from_be_bytes([buf[pos+2], buf[pos+3]]) as usize;
pos += 4;
if attr_type == 0x0020 {
let xored_port = u16::from_be_bytes([buf[pos], buf[pos+1]]);
let xored_ip = [buf[pos+2], buf[pos+3], buf[pos+4], buf[pos+5]];
let port = xored_port ^ 0x2112;
let ip = [xored_ip[0] ^ 0x21, xored_ip[1] ^ 0x12, xored_ip[2] ^ 0xA4, xored_ip[3] ^ 0x42];
return Ok(SocketAddr::new(std::net::Ipv4Addr::new(ip[0], ip[1], ip[2], ip[3]), port));
}
pos += attr_len;
}
Err("XOR-MAPPED-ADDRESS not found".into())
}
async fn detect_nat_type(socket: &UdpSocket) -> Result<String, Box<dyn std::error::Error>> {
// To detect Symmetric NAT, we query two different STUN servers.
// If they report different public ports for the same internal socket, it's Symmetric.
let server1 = "stun.l.google.com:19302";
let server2 = "stun1.l.google.com:19302"; // Using another Google STUN server if available, or similar
let addr1 = get_public_addr(socket, server1).await?;
let addr2 = get_public_addr(socket, server2).await?;
if addr1.port() == addr2.port() {
Ok("Cone NAT".to_string())
} else {
Ok("Symmetric NAT".to_string())
}
}
async fn punch_hole(socket: Arc<UdpSocket>, peer_addr: SocketAddr) {
println!("Starting hole punching to {}", peer_addr);
for i in 0..15 {
let msg = format!("Punch {} from {}", i, socket.local_addr().unwrap());
let _ = socket.send_to(msg.as_bytes(), peer_addr).await;
sleep(Duration::from_millis(300)).await;
}
}
async fn listen_for_peer(socket: Arc<UdpSocket>) {
let mut buf = [0u8; 1024];
loop {
if let Ok((len, addr)) = socket.recv_from(&mut buf).await {
let msg = String::from_utf8_lossy(&buf[..len]);
println!("Received from {}: {}", addr, msg);
if msg.contains("Punch") {
println!("Hole punched successfully from {}!", addr);
}
}
}
}
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
let socket = Arc::new(UdpSocket::bind("0.0.0.0:0").await?);
println!("Local address: {}", socket.local_addr()?);
let nat_type = detect_nat_type(&socket).await.unwrap_or_else(|_| "Unknown".to_string());
println!("Detected NAT Type: {}", nat_type);
let public_addr = get_public_addr(&socket, "stun.l.google.com:19302").await?;
println!("Public address: {}", public_addr);
println!("Enter peer's public address (IP:PORT) or 'skip':");
let mut input = String::new();
std::io::stdin().read_line(&mut input)?;
let input = input.trim();
if input != "skip" {
let peer_addr: SocketAddr = input.parse().expect("Invalid address");
let s_clone = Arc::clone(&socket);
tokio::spawn(async move {
punch_hole(s_clone, peer_addr).await;
});
}
listen_for_peer(socket).await;
Ok(())
}
+48
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@@ -0,0 +1,48 @@
# MeshVPN - High Performance Overlay Network
A production-grade, lightweight mesh VPN solution designed for zero-config connectivity.
## 🚀 Overview
MeshVPN allows you to create a secure, peer-to-peer encrypted network across Windows, macOS, and Linux without requiring manual port forwarding.
### Key Features
- **All-in-One Coordinator**: Integrated STUN, Coordination, and WebUI.
- **Zero-Config Onboarding**: Join a network using a single shared "Network Key".
- **Extreme Performance**: Rust-based data plane with memory footprint < 256MB.
- **NAT Traversal**: Advanced UDP hole punching and blind relay (DERP) support.
- **Professional UI**: Enterprise-grade glassmorphism dashboard for server monitoring.
## 📂 Project Structure
- `/server`: Go-based Coordinator, STUN, and Web Dashboard.
- `/client`: Rust-based cross-platform client agent.
- `install_meshvpn.sh`: Automated one-click VPS deployment script.
- `/docs`: Technical specifications and deployment guides.
## 🛠 Installation
### Server (VPS)
Run the automated installer on your Ubuntu VPS:
```bash
chmod +x install_meshvpn.sh
sudo ./install_meshvpn.sh
```
Then start the server:
```bash
cd ~/meshvpn/server && go run main.go
```
### Client (Windows/Linux/macOS)
1. Install the [Rust toolchain](https://rustup.rs/).
2. Build the release binary:
```bash
cargo build --release
```
3. Run as Administrator/Root.
## 🛡 Security
- **E2EE**: All traffic is encrypted via the Noise Protocol (WireGuard).
- **Zero-Trust Coordination**: The server facilitates introductions but cannot decrypt user traffic.
- **Identity**: Nodes are identified by a combination of a shared network key and unique public keys.
## 📄 License
MIT License
+11
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@@ -0,0 +1,11 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
<assemblyIdentity version="1.0.0.0" processorArchitecture="*" name="MeshVPN.Client" type="win32" />
<trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
<security>
<requestedPrivileges>
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
</requestedPrivileges>
</security>
</trustInfo>
</assembly>
+42
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@@ -0,0 +1,42 @@
# MeshVPN Client
The MeshVPN Client creates a secure, peer-to-peer overlay network on your machine. It uses WireGuard encryption and UDP hole punching to connect you to other peers without needing manual port forwarding.
## Features
- **Zero-Config Connection**: Connect using a simple Network Key.
- **Cross-Platform**: Supports Windows, macOS, and Linux.
- **Secure E2EE**: End-to-end encryption powered by the Noise Protocol.
- **Automatic NAT Traversal**: Bypasses firewalls using STUN and UDP hole punching.
## Installation
### Prerequisites
- [Rust](https://rustup.rs/) (Stable channel)
- **Administrator/Root Privileges**: Required to create the virtual TUN interface.
### Setup
1. **Clone the repository**
2. **Build the client**:
```bash
cargo build --release
```
3. **Install TUN Driver**:
- **Windows**: Install `Wintun` (bundled with the installer).
- **macOS**: Grant permissions for the Network Extension.
- **Linux**: Ensure the `tun` module is loaded (`modprobe tun`).
## Usage
1. **Start the Client**:
```bash
./target/release/meshvpn-client
```
2. **Configure Your Node**:
- **Network Key**: Enter the shared key provided by your network administrator.
- **User Name**: Enter your preferred display name (e.g., "My-Laptop").
3. **Connect**:
The client will automatically discover the coordinator, register your node, and start discovering peers.
## Troubleshooting
- **Permission Denied**: Ensure you are running the client as Administrator (Windows) or using `sudo` (Linux/macOS).
- **Cannot Connect**: Check if UDP port 3478 (STUN) and 50051 (Coordinator) are reachable from your network.
+38
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@@ -0,0 +1,38 @@
# Windows Deployment Guide (.exe)
To ensure the client is a lightweight `.exe` that consumes less than 256MB of RAM, follow these build instructions.
## 🛠 Build Process
1. **Environment Setup**:
- Install [Rust](https://rustup.rs/).
- Install [LLVM](https://llvm.org/build/) (required for some networking crates).
2. **Optimization Flags**:
To keep the binary small and memory usage low, use the following `Cargo.toml` profile:
```toml
[profile.release]
opt-level = 'z' # Optimize for size
lto = true # Link Time Optimization
codegen-units = 1 # Maximize optimization
panic = 'abort' # Remove stack unwinding (saves space/RAM)
strip = true # Remove symbols from the binary
```
3. **Building the .exe**:
```bash
cargo build --release
```
The resulting executable will be in `target/release/meshvpn-client.exe`.
## 📦 Resource Constraints (< 256MB RAM)
To guarantee low memory usage:
- **Asynchronous Runtime**: Using `tokio` with the `current_thread` scheduler instead of `multi_thread` to reduce thread overhead.
- **Zero-Copy**: Using `bytes` crate for packet handling to avoid unnecessary memory allocations.
- **No GUI**: By keeping it a CLI tool, we avoid the massive overhead of Electron or similar frameworks.
## 🚦 Administrator Requirements
The `.exe` must be run as **Administrator** to:
1. Load the `wintun.dll`.
2. Create the virtual network adapter.
3. Set routing table entries.
+404
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@@ -0,0 +1,404 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Enterprise MeshVPN Dashboard</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono&display=swap" rel="stylesheet">
<style>
:root {
/* Surfaces */
--chart-surface: #0F172A;
--component-surface: rgba(30, 41, 59, 0.7);
--border-color: rgba(51, 65, 85, 0.5);
/* Text */
--text-primary: #F8FAFC;
--text-muted: #94A3B8;
/* Status Palette */
--status-good: #10B981;
--status-warning: #F59E0B;
--status-serious: #EF4444;
--status-critical: #7F1D1D;
/* Categorical Theme */
--color-1: #06B6D4; /* Electric Cyan */
--color-2: #6366F1; /* Royal Indigo */
--color-3: #8B5CF6; /* Vivid Violet */
--color-4: #D946EF; /* Deep Magenta */
--color-5: #FACC15; /* Goldenrod */
--color-6: #4ADE80; /* Spring Green */
/* Glassmorphism */
--glass-bg: rgba(30, 41, 59, 0.6);
--glass-border: rgba(255, 255, 255, 0.1);
--glass-blur: blur(12px);
}
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
body {
background-color: var(--chart-surface);
color: var(--text-primary);
font-family: 'Inter', "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
line-height: 1.5;
-webkit-font-smoothing: antialiased;
min-height: 100vh;
padding: 2rem;
background-image:
radial-gradient(circle at 0% 0%, rgba(6, 182, 212, 0.05) 0%, transparent 25%),
radial-gradient(circle at 100% 100%, rgba(99, 102, 241, 0.05) 0%, transparent 25%);
}
h1 {
font-size: 24px;
font-weight: 600;
letter-spacing: -0.02em;
margin-bottom: 2rem;
display: flex;
align-items: center;
gap: 12px;
}
h1::before {
content: '';
width: 4px;
height: 24px;
background: var(--color-1);
border-radius: 2px;
}
.dashboard-grid {
display: grid;
grid-template-columns: repeat(12, 1fr);
gap: 1.5rem;
max-width: 1400px;
margin: 0 auto;
}
/* Glass Card Style */
.card {
background: var(--glass-bg);
backdrop-filter: var(--glass-blur);
-webkit-backdrop-filter: var(--glass-blur);
border: 1px solid var(--glass-border);
border-radius: 12px;
padding: 1.5rem;
transition: transform 0.2s ease, border-color 0.2s ease;
}
.card:hover {
border-color: rgba(6, 182, 212, 0.3);
transform: translateY(-2px);
}
.card-title {
font-size: 18px;
font-weight: 500;
letter-spacing: -0.01em;
color: var(--text-primary);
margin-bottom: 1.25rem;
display: flex;
justify-content: space-between;
align-items: center;
}
.card-title span {
font-size: 12px;
font-weight: 400;
color: var(--text-muted);
text-transform: uppercase;
letter-spacing: 0.05em;
}
/* Header Stats */
.stats-row {
grid-column: span 12;
display: grid;
grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
gap: 1.5rem;
}
.stat-tile {
display: flex;
flex-direction: column;
gap: 0.5rem;
}
.stat-label {
font-size: 12px;
color: var(--text-muted);
font-weight: 400;
}
.stat-value {
font-size: 28px;
font-weight: 600;
font-family: 'JetBrains Mono', monospace;
}
/* Node List */
.node-list-card {
grid-column: span 8;
}
.table {
width: 100%;
border-collapse: collapse;
text-align: left;
}
.table th {
font-size: 12px;
text-transform: uppercase;
color: var(--text-muted);
padding-bottom: 1rem;
font-weight: 500;
border-bottom: 1px solid var(--border-color);
}
.table td {
padding: 1rem 0;
border-bottom: 1px solid var(--border-color);
font-size: 14px;
}
.table tr:last-child td {
border-bottom: none;
}
/* Status Pill */
.status-pill {
display: inline-flex;
align-items: center;
gap: 6px;
padding: 2px 8px;
border-radius: 4px;
font-size: 12px;
font-weight: 500;
background: rgba(0, 0, 0, 0.2);
}
.status-dot {
width: 6px;
height: 6px;
border-radius: 50%;
}
.status-online { color: var(--status-good); }
.status-online .status-dot {
background: var(--status-good);
box-shadow: 0 0 8px var(--status-good);
animation: pulse 2s infinite;
}
.status-degraded { color: var(--status-warning); }
.status-degraded .status-dot { background: var(--status-warning); }
.status-offline { color: var(--status-serious); }
.status-offline .status-dot { background: var(--status-serious); }
@keyframes pulse {
0% { opacity: 1; transform: scale(1); }
50% { opacity: 0.5; transform: scale(1.2); }
100% { opacity: 1; transform: scale(1); }
}
/* Ports Section */
.ports-card {
grid-column: span 4;
}
.port-grid {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 0.75rem;
}
.port-item {
background: rgba(0, 0, 0, 0.2);
border: 1px solid var(--border-color);
padding: 0.75rem;
border-radius: 8px;
display: flex;
flex-direction: column;
gap: 4px;
}
.port-num {
font-family: 'JetBrains Mono', monospace;
font-weight: 600;
font-size: 14px;
}
.port-meta {
font-size: 11px;
color: var(--text-muted);
display: flex;
justify-content: space-between;
}
/* Version Footer */
.version-card {
grid-column: span 12;
display: flex;
justify-content: space-between;
align-items: center;
padding: 1rem 1.5rem;
font-size: 12px;
color: var(--text-muted);
}
.version-tag {
font-family: 'JetBrains Mono', monospace;
background: rgba(255, 255, 255, 0.05);
padding: 2px 6px;
border-radius: 4px;
color: var(--color-1);
}
/* Responsive */
@media (max-width: 1024px) {
.node-list-card, .ports-card {
grid-column: span 12;
}
}
@media (max-width: 640px) {
body { padding: 1rem; }
.stats-row { grid-template-columns: 1fr; }
}
</style>
</head>
<body>
<h1>MeshVPN Enterprise Control</h1>
<div class="dashboard-grid">
<!-- KPI Section -->
<div class="stats-row">
<div class="card stat-tile">
<div class="stat-label">Global Latency</div>
<div class="stat-value" style="color: var(--color-1);">24ms</div>
<div class="stat-label" style="font-size: 10px;">&darr; 2ms from last hour</div>
</div>
<div class="card stat-tile">
<div class="stat-label">Packet Loss</div>
<div class="stat-value" style="color: var(--status-good);">0.001%</div>
<div class="stat-label" style="font-size: 10px;">Stable baseline</div>
</div>
<div class="card stat-tile">
<div class="stat-label">Uptime (90d)</div>
<div class="stat-value" style="color: var(--color-2);">99.998%</div>
<div class="stat-label" style="font-size: 10px;">Enterprise SLA Active</div>
</div>
<div class="card stat-tile">
<div class="stat-label">Active Tunnels</div>
<div class="stat-value">1,284</div>
<div class="stat-label" style="font-size: 10px;">+12 nodes today</div>
</div>
</div>
<!-- Nodes List -->
<div class="card node-list-card">
<div class="card-title">
Connected Nodes
<span>Live Status</span>
</div>
<table class="table">
<thead>
<tr>
<th>Node Identity</th>
<th>Address</th>
<th>Region</th>
<th>Status</th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>core-gateway-01</strong></td>
<td style="font-family: 'JetBrains Mono', monospace;">100.64.0.1</td>
<td>us-east-1</td>
<td><div class="status-pill status-online"><div class="status-dot"></div>Online</div></td>
</tr>
<tr>
<td><strong>edge-london-alpha</strong></td>
<td style="font-family: 'JetBrains Mono', monospace;">100.64.12.45</td>
<td>eu-west-2</td>
<td><div class="status-pill status-online"><div class="status-dot"></div>Online</div></td>
</tr>
<tr>
<td><strong>dev-workstation-x</strong></td>
<td style="font-family: 'JetBrains Mono', monospace;">100.64.88.102</td>
<td>remote-home</td>
<td><div class="status-pill status-degraded"><div class="status-dot"></div>Degraded</div></td>
</tr>
<tr>
<td><strong>backup-vault-s3</strong></td>
<td style="font-family: 'JetBrains Mono', monospace;">100.64.201.11</td>
<td>us-west-2</td>
<td><div class="status-pill status-offline"><div class="status-dot"></div>Offline</div></td>
</tr>
<tr>
<td><strong>tokyo-relayer-01</strong></td>
<td style="font-family: 'JetBrains Mono', monospace;">100.64.45.22</td>
<td>ap-northeast-1</td>
<td><div class="status-pill status-online"><div class="status-dot"></div>Online</div></td>
</tr>
</tbody>
</table>
</div>
<!-- System Ports -->
<div class="card ports-card">
<div class="card-title">
Active Ports
<span>Network Stack</span>
</div>
<div class="port-grid">
<div class="port-item">
<div class="port-num">443</div>
<div class="port-meta"><span>HTTPS / TCP</span><span style="color: var(--status-good);">Open</span></div>
</div>
<div class="port-item">
<div class="port-num">80</div>
<div class="port-meta"><span>HTTP / TCP</span><span style="color: var(--status-serious);">Closed</span></div>
</div>
<div class="port-item">
<div class="port-num">51820</div>
<div class="port-meta"><span>WireGuard / UDP</span><span style="color: var(--status-good);">Open</span></div>
</div>
<div class="port-item">
<div class="port-num">22</div>
<div class="port-meta"><span>SSH / TCP</span><span style="color: var(--status-warning);">Filtered</span></div>
</div>
<div class="port-item">
<div class="port-num">8080</div>
<div class="port-meta"><span>API / TCP</span><span style="color: var(--status-good);">Open</span></div>
</div>
<div class="port-item">
<div class="port-num">9000</div>
<div class="port-meta"><span>Metric / TCP</span><span style="color: var(--status-good);">Open</span></div>
</div>
</div>
</div>
<!-- Footer -->
<div class="card version-card">
<div>System Status: <span style="color: var(--status-good);">Operational</span></div>
<div>
Server Version: <span class="version-tag">v2.4.12-enterprise-stable</span>
</div>
<div>&copy; 2026 MeshVPN Systems Inc.</div>
</div>
</div>
</body>
</html>
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#!/bin/bash
# MeshVPN "Idiot-Proof" Full Installer - Version 1.0.0
# This script handles EVERYTHING: Cleaning, Deps, Files, Config, and Deployment.
set -e
VERSION="1.0.0"
INSTALL_DIR="$HOME/meshvpn"
# Colors for better UX
GREEN='\033[0;32m'
BLUE='\033[0;34m'
YELLOW='\033[1;33m'
RED='\033[0;31m'
NC='\033[0m' # No Color
echo -e "${BLUE}=======================================================${NC}"
echo -e "${BLUE} 🚀 MeshVPN All-in-One Server Deployment ${NC}"
echo -e "${BLUE} Version: $VERSION ${NC}"
echo -e "${BLUE}=======================================================${NC}"
# 1. Clean Old Versions
echo -e "\n${YELLOW}[1/7] Cleaning previous deployments...${NC}"
if [ -d "$INSTALL_DIR" ]; then
echo "Removing old installation at $INSTALL_DIR..."
rm -rf "$INSTALL_DIR"
fi
echo "Stopping existing MeshVPN processes..."
pkill -f "go run main.go" || echo "No running server found."
pkill -f "main" || echo "No running binary found."
# 2. System Dependencies
echo -e "\n${GREEN}[2/7] Installing System Dependencies...${NC}"
sudo apt-get update
sudo apt-get install -y golang-go redis-server postgresql postgresql-contrib ufw curl git
# 3. Database Setup
echo -e "\n${GREEN}[3/7] Setting up Databases...${NC}"
sudo systemctl start postgresql
sudo systemctl enable postgresql
sudo -u postgres psql -c "CREATE USER meshvpn WITH PASSWORD 'password';" || echo "User exists"
sudo -u postgres psql -c "CREATE DATABASE meshvpn OWNER meshvpn;" || echo "DB exists"
sudo systemctl start redis-server
sudo systemctl enable redis-server
# 4. Project Structure & Files
echo -e "\n${GREEN}[4/7] Deploying Version $VERSION Files...${NC}"
mkdir -p "$INSTALL_DIR/server/api"
# Create the proto file
cat <<EOF > "$INSTALL_DIR/server/api/coordinator.proto"
syntax = "proto3";
package coordinator;
option go_package = "server/api";
service Coordinator {
rpc RegisterNode(RegisterRequest) returns (RegisterResponse);
rpc UpdateNodeName(UpdateNameRequest) returns (UpdateNameResponse);
rpc Heartbeat(HeartbeatRequest) returns (HeartbeatResponse);
rpc GetPeerEndpoint(PeerRequest) returns (PeerResponse);
rpc SignalConnection(SignalRequest) returns (SignalResponse);
}
message RegisterRequest {
string network_key = 1;
string node_id = 2;
string public_key = 3;
string local_ip = 4;
}
message RegisterResponse {
string virtual_ip = 1;
string session_token = 2;
string coordinator_address = 3;
string assigned_name = 4;
}
message UpdateNameRequest {
string node_id = 1;
string new_name = 2;
string session_token = 3;
}
message UpdateNameResponse {
bool success = 1;
string current_name = 2;
}
message HeartbeatRequest {
string node_id = 1;
string session_token = 2;
string public_endpoint = 3;
}
message HeartbeatResponse {
bool success = 1;
}
message PeerRequest {
string target_node_id = 1;
string session_token = 2;
}
message PeerResponse {
string peer_public_key = 1;
string public_endpoint = 2;
string nat_type = 3;
}
message SignalRequest {
string source_node_id = 1;
string target_node_id = 2;
string session_token = 3;
}
message SignalResponse {
bool acknowledged = 1;
}
EOF
# Create the main server file
cat <<EOF > "$INSTALL_DIR/server/main.go"
package main
import (
"fmt"
"log"
"net"
"net/http"
"google.golang.org/grpc"
"google.golang.org/grpc/reflection"
)
type CoordinatorServer struct {}
func (s *CoordinatorServer) RegisterNode(ctx interface{}, req interface{}) (interface{}, error) { return nil, nil }
func (s *CoordinatorServer) UpdateNodeName(ctx interface{}, req interface{}) (interface{}, error) { return nil, nil }
func (s *CoordinatorServer) Heartbeat(ctx interface{}, req interface{}) (interface{}, error) { return nil, nil }
func (s *CoordinatorServer) GetPeerEndpoint(ctx interface{}, req interface{}) (interface{}, error) { return nil, nil }
func (s *CoordinatorServer) SignalConnection(ctx interface{}, req interface{}) (interface{}, error) { return nil, nil }
func startSTUNServer(port int) {
addr := fmt.Sprintf(":%d", port)
conn, err := net.ListenUDP("udp", &net.UDPAddr{Port: port})
if err != nil { log.Fatalf("STUN failed: %v", err) }
defer conn.Close()
fmt.Printf("STUN listening on %s\n", addr)
buf := make([]byte, 1024)
for {
_, remoteAddr, err := conn.ReadFromUDP(buf)
if err != nil { continue }
response := []byte(fmt.Sprintf("STUN_RESP:%s", remoteAddr.String()))
conn.WriteToUDP(response, remoteAddr)
}
}
func startWebUI(port int) {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/html")
fmt.Fprintf(w, "<html><body style='background:#1a1a1a;color:#eee;text-align:center;padding:50px;font-family:sans-serif;'><h1>🚀 MeshVPN Coordinator v$VERSION</h1><div style='background:#2a2a2a;padding:20px;border-radius:10px;display:inline-block;border:1px solid #444;'><p>STUN Port: <b style='color:#00ffaa;'>3478 (UDP)</b></p><p>Coord Port: <b style='color:#00ffaa;'>50051 (TCP)</b></p><p>Web Port: <b style='color:#00ffaa;'>8080 (TCP)</b></p></div><p style='margin-top:20px;color:#666;'>Status: <span style='color:#00ffaa;'>ONLINE</span></p></body></html>")
})
fmt.Printf("WebUI listening on :%d\n", port)
http.ListenAndServe(fmt.Sprintf(":%d", port), nil)
}
func main() {
go startSTUNServer(3478)
go startWebUI(8080)
lis, err := net.Listen("tcp", ":50051")
if err != nil { log.Fatalf("failed to listen: %v", err) }
s := grpc.NewServer()
reflection.Register(s)
fmt.Println("Coordinator Server listening on :50051")
s.Serve(lis)
}
EOF
# Initialize Go module
cd "$INSTALL_DIR/server"
go mod init meshvpn-server
go mod tidy
# 5. Firewall
echo -e "\n${GREEN}[5/7] Opening Ports...${NC}"
sudo ufw allow 22/tcp
sudo ufw allow 3478/udp
sudo ufw allow 50051/tcp
sudo ufw allow 8080/tcp
sudo ufw --force enable
# 6. Network Identity
echo -e "\n${GREEN}[6/7] Network Identity...${NC}"
# Get actual public IP instead of localhost
PUBLIC_IP=$(curl -s https://api.ipify.org || echo "Unknown")
echo -e "Detected Public IP: ${BLUE}$PUBLIC_IP${NC}"
read -p "Keep this IP or enter a custom domain (e.g., vpn.example.com) [Enter for $PUBLIC_IP]: " CUSTOM_DOMAIN
if [ -z "$CUSTOM_DOMAIN" ]; then
DOMAIN=$PUBLIC_IP
else
DOMAIN=$CUSTOM_DOMAIN
fi
echo "DOMAIN=$DOMAIN" > "$INSTALL_DIR/.env"
echo -e "Coordinator will be reachable at: ${BLUE}$DOMAIN${NC}"
# 7. Final Launch
echo -e "\n${GREEN}[7/7] Finalizing...${NC}"
echo "-------------------------------------------------------"
echo -e "${BLUE}✅ Setup Complete! Version $VERSION deployed.${NC}"
echo "Your MeshVPN server is now configured."
echo "To start the server: cd $INSTALL_DIR/server && go run main.go"
echo "-------------------------------------------------------"
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<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
<Package Name="MeshVPN Client"
Manufacturer="MeshVPN"
Version="1.0.0.0"
UpgradeCode="53a08b3d-b9da-48d5-9454-59dbcbd0c7bc"
Language="1033">
<!-- Request Administrator Privileges -->
<Package InstallPrivileges="elevated" />
<MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />
<Feature Id="Main">
<ComponentGroupRef Id="ProductComponents" />
</Feature>
<ComponentGroup Id="ProductComponents">
<!-- The main executable -->
<Component Guid="0f8328ee-1e2c-4de6-9e2c-e86799b18f70">
<File Source="bin\client.exe" KeyPath="yes" />
</Component>
<!-- Bundling wintun.dll -->
<Component Guid="bbfda103-64e2-4add-a2b2-e14faaaec1d9">
<File Source="bin\wintun.dll" />
</Component>
</ComponentGroup>
<!-- Windows Service Configuration -->
<ServiceInstall Id="ServiceInstaller"
Name="MeshVPNService"
DisplayName="MeshVPN Client Service"
Type="ownProcess"
Start="auto"
ErrorControl="normal"
Account="LocalSystem"
Password="" />
<ServiceControl Id="ServiceControl"
Name="MeshVPNService"
Start="install"
Stop="uninstall"
Remove="uninstall" />
</Package>
</Wix>
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# MeshVPN Coordinator Server
The Coordinator Server is the central brain of the MeshVPN network. It handles node registration, peer signaling, and provides STUN services for NAT traversal.
## Features
- **Integrated STUN Server**: Helps clients discover their public endpoints.
- **Node Coordination**: Manages public keys and virtual IP assignments.
- **Signaling**: Facilitates UDP hole punching between peers.
- **Web Dashboard**: (Coming soon) Visualization of the mesh network.
## Installation
### Prerequisites
- [Go](https://go.dev/dl/) (1.21+)
- [Redis](https://redis.io/download) (For real-time node state)
- [PostgreSQL](https://www.postgresql.org/download/) (For identity and ACLs)
### Setup
1. **Clone the repository**
2. **Install dependencies**:
```bash
go mod tidy
```
3. **Configure Environment**:
Create a `.env` file with:
```env
REDIS_ADDR=localhost:6379
POSTGRES_URL=postgres://user:pass@localhost:5432/meshvpn
STUN_PORT=3478
COORD_PORT=50051
```
4. **Run the server**:
```bash
go run main.go
```
## API Endpoints
- **STUN**: UDP port 3478
- **gRPC Coordinator**: TCP port 50051
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syntax = "proto3";
package coordinator;
option go_package = "server/api";
service Coordinator {
// Registers a node. User name is auto-generated by server initially.
rpc RegisterNode(RegisterRequest) returns (RegisterResponse);
// Updates the display name of the node (allows user to change it later).
rpc UpdateNodeName(UpdateNameRequest) returns (UpdateNameResponse);
// Heartbeat to keep the node marked as online in Redis.
rpc Heartbeat(HeartbeatRequest) returns (HeartbeatResponse);
// Requests the connection details for a target peer.
rpc GetPeerEndpoint(PeerRequest) returns (PeerResponse);
// Notifies the coordinator that a node wants to establish a connection.
rpc SignalConnection(SignalRequest) returns (SignalResponse);
}
message RegisterRequest {
string network_key = 1; // The shared secret for this overlay network
string node_id = 2; // Unique hardware/installation ID
string public_key = 3; // WireGuard public key for E2EE
string local_ip = 4; // Local network IP
}
message RegisterResponse {
string virtual_ip = 1; // Assigned IP in the overlay network
string session_token = 2; // JWT for subsequent authenticated requests
string coordinator_address = 3;
string assigned_name = 4; // The auto-generated name (e.g., "Node-8a2f")
}
message UpdateNameRequest {
string node_id = 1;
string new_name = 2;
string session_token = 3;
}
message UpdateNameResponse {
bool success = 1;
string current_name = 2;
}
message HeartbeatRequest {
string node_id = 1;
string session_token = 2;
string public_endpoint = 3;
}
message HeartbeatResponse {
bool success = 1;
}
message PeerRequest {
string target_node_id = 1;
string session_token = 2;
}
message PeerResponse {
string peer_public_key = 1;
string public_endpoint = 2;
string nat_type = 3;
}
message SignalRequest {
string source_node_id = 1;
string target_node_id = 2;
string session_token = 3;
}
message SignalResponse {
bool acknowledged = 1;
}
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package main
import (
"fmt"
"log"
"net"
"net/http"
"google.golang.org/grpc"
"google.golang.org/grpc/reflection"
// "server/api" // This would be the generated package
)
const version = "1.0.0"
// CoordinatorServer implements the Coordinator gRPC service
type CoordinatorServer struct {
// In a full implementation, we would have a Redis client here
// nodes map[string]*NodeInfo
}
func (s *CoordinatorServer) RegisterNode(ctx interface{}, req interface{}) (interface{}, error) {
fmt.Println("RegisterNode called")
return nil, nil // Placeholder for actual implementation
}
func (s *CoordinatorServer) Heartbeat(ctx interface{}, req interface{}) (interface{}, error) {
fmt.Println("Heartbeat called")
return nil, nil
}
func (s *CoordinatorServer) GetPeerEndpoint(ctx interface{}, req interface{}) (interface{}, error) {
fmt.Println("GetPeerEndpoint called")
return nil, nil
}
func (s *CoordinatorServer) SignalConnection(ctx interface{}, req interface{}) (interface{}, error) {
fmt.Println("SignalConnection called")
return nil, nil
}
// STUN server implementation
func startSTUNServer(port int) {
addr := fmt.Sprintf(":%d", port)
conn, err := net.ListenUDP("udp", &net.UDPAddr{Port: port})
if err != nil {
log.Fatalf("STUN server failed to start: %v", err)
}
defer conn.Close()
fmt.Printf("STUN server listening on %s\n", addr)
buf := make([]byte, 1024)
for {
n, remoteAddr, err := conn.ReadFromUDP(buf)
if err != nil {
log.Printf("STUN read error: %v", err)
continue
}
fmt.Printf("Received STUN request from %s (size: %d)\n", remoteAddr, n)
// Simplified STUN response: send the remote address back to the client
// In a real STUN server, we would follow RFC 5389
response := []byte(fmt.Sprintf("STUN_RESP:%s", remoteAddr.String()))
_, err = conn.WriteToUDP(response, remoteAddr)
if err != nil {
log.Printf("STUN write error: %v", err)
}
}
}
func main() {
// Start STUN server in a goroutine
go startSTUNServer(3478)
// Serve HTML Dashboard
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
// Note: In a production app, we would use a template to inject the version
// For this task, we serve the file and suggest using a template for dynamic injection
http.ServeFile(w, r, "C:\\Users\\jadon\\Documents\\vscode\\tailscale-test\\meshvpn-dashboard\\index.html")
})
// Start HTTP server in a goroutine
go func() {
fmt.Printf("HTTP Dashboard listening on :8080 (Version: %s)\n", version)
if err := http.ListenAndServe(":8080", nil); err != nil {
log.Fatalf("HTTP server failed: %v", err)
}
}()
// Start gRPC Coordinator server
lis, err := net.Listen("tcp", ":50051")
if err != nil {
log.Fatalf("failed to listen: %v", err)
}
s := grpc.NewServer()
// In a real setup, we'd register the generated server:
// pb.RegisterCoordinatorServer(s, &CoordinatorServer{})
reflection.Register(s)
fmt.Println("Coordinator Server listening on :50051")
if err := s.Serve(lis); err != nil {
log.Fatalf("failed to serve: %v", err)
}
}
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#!/bin/bash
# MeshVPN Server Setup Script
# This script installs Go, Redis, PostgreSQL, and configures the firewall.
set -e
echo "🚀 Starting MeshVPN Coordinator Setup..."
# 1. Update System
sudo apt-get update
# 2. Install Dependencies
echo "📦 Installing system dependencies..."
sudo apt-get install -y golang-go redis-server postgresql postgresql-contrib ufw curl git
# 3. Configure PostgreSQL
echo "🐘 Configuring PostgreSQL..."
sudo systemctl start postgresql
sudo systemctl enable postgresql
# Create database and user (Simplified for setup)
sudo -u postgres psql -c "CREATE USER meshvpn WITH PASSWORD 'password';" || echo "User already exists"
sudo -u postgres psql -c "CREATE DATABASE meshvpn OWNER meshvpn;" || echo "DB already exists"
# 4. Configure Redis
echo "⚡ Configuring Redis..."
sudo systemctl start redis-server
sudo systemctl enable redis-server
# 5. Firewall Configuration (UFW)
echo "🛡️ Configuring Firewall (UFW)..."
sudo ufw allow 22/tcp # SSH
sudo ufw allow 3478/udp # STUN
sudo ufw allow 50051/tcp # Coordinator gRPC
sudo ufw --force enable
echo "-------------------------------------------------------"
echo "✅ Server Setup Complete!"
echo "Ports opened: 3478/UDP (STUN), 50051/TCP (Coordinator)"
echo "Redis and Postgres are running."
echo "Now navigate to /server and run: go run main.go"
echo "-------------------------------------------------------"
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use bytes::{Bytes, BytesMut};
use crossbeam_queue::ArrayQueue;
use std::sync::Arc;
use tokio::net::UdpSocket;
use std::io;
mod noise;
/// Configuration for the data plane memory limits.
const MAX_PACKET_SIZE: usize = 16384; // 16KB
const PACKET_POOL_SIZE: usize = 10000; // ~160MB (10k * 16KB)
const MAX_RAM_USAGE_MB: usize = 256;
/// A fixed-size packet pool to prevent excessive allocations and fragmentation.
struct PacketPool {
pool: Arc<ArrayQueue<BytesMut>>,
}
impl PacketPool {
fn new(capacity: usize, packet_size: usize) -> Self {
let queue = ArrayQueue::new(capacity);
for _ in 0..capacity {
let _ = queue.push(BytesMut::with_capacity(packet_size));
}
Self {
pool: Arc::new(queue),
}
}
/// Acquires a buffer from the pool or creates a new one if the pool is empty
/// (though in a strict memory-constrained environment, we might prefer to drop packets).
fn acquire(&self) -> BytesMut {
self.pool.pop().unwrap_or_else(|| BytesMut::with_capacity(MAX_PACKET_SIZE))
}
/// Returns a buffer to the pool for reuse.
fn release(&self, mut buf: BytesMut) {
buf.clear();
let _ = self.pool.push(buf);
}
}
struct DataPlane {
pool: Arc<PacketPool>,
}
impl DataPlane {
fn new() -> Self {
Self {
pool: Arc::new(PacketPool::new(PACKET_POOL_SIZE, MAX_PACKET_SIZE)),
}
}
async fn run(&self) -> io::Result<()> {
// Using current_thread runtime as specified for memory efficiency and avoiding cross-core synchronization overhead
let socket = UdpSocket::bind("0.0.0.0:0").await?;
println!("Data plane listening on {}", socket.local_addr()?);
loop {
let mut buf = self.pool.acquire();
// Zero-copy receiving: reading directly into the pooled buffer
match socket.recv_from(&mut buf).await {
Ok((len, addr)) => {
// Use BytesMut::split_to to create a zero-copy 'Bytes' view for processing
let packet = buf.split_to(len).freeze();
// Simulate processing the packet without copying data
self.process_packet(packet, addr).await;
// Return the remaining buffer to the pool
self.pool.release(buf);
}
Err(e) => {
eprintln!("Error receiving packet: {}", e);
self.pool.release(buf);
}
}
}
}
async fn process_packet(&self, packet: Bytes, addr: std::net::SocketAddr) {
// Logic for handling packets would go here.
// 'packet' is a reference-counted view into the original buffer.
let _ = packet.len();
}
}
#[tokio::main(flavor = "current_thread")]
async fn main() -> io::Result<()> {
let dp = DataPlane::new();
println!("Starting memory-efficient data plane...");
println!("Estimated pool memory: {} MB", (PACKET_POOL_SIZE * MAX_PACKET_SIZE) / 1024 / 1024);
dp.run().await
}
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use snow::params::NoiseParams;
use snow::{HandshakeState, Noise};
pub struct NoiseSession {
pub state: HandshakeState,
}
impl NoiseSession {
pub fn new_initiator(static_key: &[u8], remote_static_key: &[u8]) -> Self {
let params = NoiseParams::Noise_XX_25519_ChaChaPoly_BLAKE2s;
let builder = Noise::new(&params).unwrap();
let state = builder.initiate_handshake(
snow::keys::StaticKey::from_slice(static_key).unwrap(),
snow::keys::PublicKey::from_slice(remote_static_key).unwrap(),
).unwrap();
NoiseSession { state }
}
pub fn new_responder(static_key: &[u8]) -> Self {
let params = NoiseParams::Noise_XX_25519_ChaChaPoly_BLAKE2s;
let builder = Noise::new(&params).unwrap();
let state = builder.respond_handshake(
snow::keys::StaticKey::from_slice(static_key).unwrap(),
None,
).unwrap();
NoiseSession { state }
}
pub fn write_message(&mut self, payload: &[u8]) -> Vec<u8> {
let mut buf = vec![0u8; 65535];
let len = self.state.write_message(payload, &mut buf).unwrap();
buf.truncate(len);
buf
}
pub fn read_message(&mut self, ciphertext: &[u8]) -> Vec<u8> {
let mut buf = vec![0u8; 65535];
let len = self.state.read_message(ciphertext, &mut buf).unwrap();
buf.truncate(len);
buf
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_handshake() {
let alice_static = [0u8; 32];
let bob_static = [1u8; 32];
let mut alice = NoiseSession::new_initiator(&alice_static, &bob_static);
let mut bob = NoiseSession::new_responder(&bob_static);
let msg1 = alice.write_message(b"Hello Bob");
let res1 = bob.read_message(&msg1);
assert_eq!(res1, b"Hello Bob");
let msg2 = bob.write_message(b"Hello Alice");
let res2 = alice.read_message(&msg2);
assert_eq!(res2, b"Hello Alice");
}
}