QUIC-Go Implementation

Development Status

This plugin is currently in development phase.

Go-based QUIC Implementation

QUIC-Go is a high-performance, pure Go implementation of the QUIC protocol, ideal for cloud-native applications and microservices requiring modern transport capabilities.

Plugin Type: Service (Implementation Under Test)

Verified Source Location: plugins/services/iut/quic/quic_go/

Purpose and Overview

The QUIC-Go plugin provides integration with the Go-based QUIC implementation developed by the quic-go project team. QUIC-Go is a pure Go implementation that offers excellent performance, clean APIs, and strong integration with the Go ecosystem, making it ideal for Go-based applications and services requiring QUIC transport.

The QUIC-Go implementation plugin enables:

• Go application QUIC integration testing
• High-performance concurrent connection handling
• Cloud-native and microservice QUIC deployments
• HTTP/3 server and client evaluation
• Cross-platform QUIC implementation validation

Requirements and Dependencies

Go Runtime Requirements

QUIC-Go requires Go 1.19+ and active internet access for module downloads during build. Ensure your build environment has proper Go toolchain setup and module proxy access.

The plugin requires:

• Go Runtime: Go 1.19 or higher
• quic-go Library: Latest stable quic-go implementation
• Go Crypto Libraries: Standard Go cryptographic packages
• Build Tools: Go toolchain and module support

Docker-based deployment includes Go runtime and all dependencies.

Configuration Options

Version Configuration

Parameter	Type	Default	Description
version	String	""	quic-go library version
commit	String	""	Specific commit hash
dependencies	List	[]	Additional Go module dependencies

Server Configuration

Parameter	Type	Default	Description
role	String	"server"	Service role: "server" or "client"
addr	String	"0.0.0.0:4433"	Server bind address and port
cert_file	String	""	TLS certificate file path
key_file	String	""	TLS private key file path
alpn_protocols	List	["h3"]	ALPN protocol list

Client Configuration

Parameter	Type	Default	Description
server_addr	String	""	Target server address
insecure_skip_verify	Boolean	false	Skip certificate verification
ca_file	String	""	Custom CA certificate file
timeout	String	"30s"	Connection timeout duration

Protocol Parameters

Parameter	Type	Default	Description
quic_versions	List	["1"]	Supported QUIC versions
max_incoming_streams	Integer	1000	Maximum incoming streams
max_incoming_uni_streams	Integer	1000	Maximum incoming unidirectional streams
initial_stream_receive_window	Integer	1048576	Initial stream receive window
initial_conn_receive_window	Integer	15728640	Initial connection receive window
keep_alive_period	String	"0s"	Keep-alive period (0 = disabled)

Performance Configuration

Parameter	Type	Default	Description
max_idle_timeout	String	"30s"	Maximum idle timeout
handshake_idle_timeout	String	"5s"	Handshake completion timeout
disable_path_mtu_discovery	Boolean	false	Disable path MTU discovery
enable_datagram	Boolean	false	Enable QUIC datagrams
max_token_age	String	"24h"	Maximum token age for 0-RTT

Logging and Debug

Parameter	Type	Default	Description
log_level	String	"info"	Logging level
qlog_enabled	Boolean	false	Enable qlog tracing
qlog_dir	String	""	qlog output directory
keylog_file	String	""	TLS keylog file path
tracer_enabled	Boolean	false	Enable connection tracing

Usage Examples

Basic HTTP/3 Server

services:
  iut:
    type: "quic_go"
    role: "server"
    addr: "0.0.0.0:8443"
    cert_file: "/certs/server.crt"
    key_file: "/certs/server.key"
    alpn_protocols: ["h3"]
    max_incoming_streams: 1000
    initial_conn_receive_window: 15728640

High-Performance Server

services:
  iut:
    type: "quic_go"
    role: "server"
    addr: "0.0.0.0:443"
    cert_file: "/certs/production.crt"
    key_file: "/certs/production.key"
    # Performance optimization
    max_incoming_streams: 10000
    max_incoming_uni_streams: 10000
    initial_stream_receive_window: 2097152  # 2MB
    initial_conn_receive_window: 31457280   # 30MB
    max_idle_timeout: "60s"
    disable_path_mtu_discovery: false
    alpn_protocols: ["h3", "h3-29"]

Client Configuration

services:
  iut:
    type: "quic_go"
    role: "client"
    server_addr: "server.example.com:4433"
    alpn_protocols: ["h3"]
    timeout: "10s"
    max_idle_timeout: "30s"
    insecure_skip_verify: false
    keylog_file: "/debug/quic-go-keys.log"

Development and Testing

services:
  iut:
    type: "quic_go"
    role: "server"
    addr: "127.0.0.1:4433"
    cert_file: "/test-certs/localhost.crt"
    key_file: "/test-certs/localhost.key"
    # Debug configuration
    log_level: "debug"
    qlog_enabled: true
    qlog_dir: "/debug/qlogs"
    keylog_file: "/debug/keys.log"
    tracer_enabled: true
    # Reduced timeouts for testing
    handshake_idle_timeout: "1s"
    max_idle_timeout: "10s"

Features

Go Language Integration

• Native Go APIs: Idiomatic Go interfaces and patterns
• Goroutine Support: Concurrent connection and stream handling
• Context Support: Standard Go context for cancellation and timeouts
• HTTP/3 Integration: Built-in HTTP/3 server and client

QUIC Protocol Features

• RFC 9000 Compliance: Full QUIC transport implementation
• Multiple Versions: Support for draft and standardized versions
• Stream Multiplexing: Efficient bidirectional and unidirectional streams
• Flow Control: Advanced connection and stream flow control
• 0-RTT: Zero Round Trip Time connection resumption

Performance Characteristics

• High Concurrency: Efficient goroutine-based concurrency
• Memory Efficiency: Optimized buffer management
• CPU Optimization: Efficient packet processing
• Scalability: Support for thousands of concurrent connections

HTTP/3 Support

• Server Implementation: Complete HTTP/3 server with request handling
• Client Implementation: HTTP/3 client with connection pooling
• Header Compression: QPACK header compression support
• Server Push: HTTP/3 server push capabilities

Development Integration

Basic Server Implementation

package main

import (
    "context"
    "crypto/tls"
    "log"
    "net/http"

    "github.com/quic-go/quic-go/http3"
)

func main() {
    mux := http.NewServeMux()
    mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        w.Write([]byte("Hello QUIC-Go!"))
    })

    server := http3.Server{
        Addr:    ":8443",
        Handler: mux,
        TLSConfig: &tls.Config{
            Certificates: []tls.Certificate{cert},
        },
    }

    log.Fatal(server.ListenAndServe())
}

Client Implementation

package main

import (
    "context"
    "crypto/tls"
    "fmt"
    "io"
    "net/http"

    "github.com/quic-go/quic-go/http3"
)

func main() {
    client := &http.Client{
        Transport: &http3.RoundTripper{
            TLSClientConfig: &tls.Config{
                InsecureSkipVerify: true,
            },
        },
    }

    resp, err := client.Get("https://localhost:8443/")
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

Custom Configuration

// Advanced QUIC configuration
config := &quic.Config{
    MaxIncomingStreams:         1000,
    MaxIncomingUniStreams:     1000,
    InitialStreamReceiveWindow: 1048576,
    InitialConnReceiveWindow:   15728640,
    MaxIdleTimeout:            30 * time.Second,
    KeepAlivePeriod:           0, // Disabled
    EnableDatagrams:           false,
}

// Apply configuration to server
server := http3.Server{
    Addr:       ":8443",
    Handler:    mux,
    TLSConfig:  tlsConfig,
    QuicConfig: config,
}

Testing and Validation

Unit Testing

func TestQUICGoServer(t *testing.T) {
    // Test server implementation
    server := setupTestServer()
    defer server.Close()

    client := &http.Client{
        Transport: &http3.RoundTripper{
            TLSClientConfig: &tls.Config{
                InsecureSkipVerify: true,
            },
        },
    }

    resp, err := client.Get(server.URL + "/test")
    assert.NoError(t, err)
    assert.Equal(t, http.StatusOK, resp.StatusCode)
}

Integration Testing

# Integration test configuration
services:
  iut:
    type: "quic_go"
    role: "server"
    addr: "127.0.0.1:0"  # Random port
    cert_file: "/test/certs/localhost.crt"
    key_file: "/test/certs/localhost.key"
    log_level: "debug"
    qlog_enabled: true
    max_idle_timeout: "5s"

Performance Testing

// Benchmark concurrent connections
func BenchmarkConcurrentConnections(b *testing.B) {
    server := setupPerfTestServer()
    defer server.Close()

    b.ResetTimer()
    b.RunParallel(func(pb *testing.PB) {
        client := setupTestClient()
        for pb.Next() {
            resp, err := client.Get(server.URL)
            if err != nil {
                b.Error(err)
            }
            resp.Body.Close()
        }
    })
}

Troubleshooting

Common Issues

Connection Failures

• Verify certificate configuration and trust chains
• Check network connectivity and firewall rules
• Review ALPN protocol negotiation
• Validate server address and port binding

Performance Issues

• Monitor goroutine counts and memory usage
• Profile CPU usage during high load
• Check garbage collection overhead
• Tune buffer sizes and timeouts

TLS/Security Issues

• Verify certificate validity and expiration
• Check certificate chain completeness
• Review ALPN protocol support
• Validate TLS 1.3 configuration

Debug Configuration

services:
  iut:
    type: "quic_go"
    role: "server"
    log_level: "debug"
    qlog_enabled: true
    qlog_dir: "/debug/qlogs"
    keylog_file: "/debug/keys.log"
    tracer_enabled: true
    # Extended timeouts for debugging
    handshake_idle_timeout: "30s"
    max_idle_timeout: "300s"

Performance Profiling

# CPU profiling
go tool pprof http://localhost:6060/debug/pprof/profile

# Memory profiling
go tool pprof http://localhost:6060/debug/pprof/heap

# Goroutine analysis
go tool pprof http://localhost:6060/debug/pprof/goroutine

Cloud-Native Deployment

Kubernetes Configuration

apiVersion: apps/v1
kind: Deployment
metadata:
  name: quic-go-server
spec:
  replicas: 3
  selector:
    matchLabels:
      app: quic-go-server
  template:
    metadata:
      labels:
        app: quic-go-server
    spec:
      containers:
      - name: quic-go
        image: panther/quic-go:latest
        ports:
        - containerPort: 8443
          protocol: UDP
        env:
        - name: QUIC_CERT_FILE
          value: "/certs/tls.crt"
        - name: QUIC_KEY_FILE
          value: "/certs/tls.key"
        volumeMounts:
        - name: tls-certs
          mountPath: /certs
      volumes:
      - name: tls-certs
        secret:
          secretName: quic-tls-secret

Docker Compose

version: '3.8'
services:
  quic-go-server:
    image: panther/quic-go:latest
    ports:
      - "8443:8443/udp"
    environment:
      - QUIC_ROLE=server
      - QUIC_ADDR=0.0.0.0:8443
      - QUIC_CERT_FILE=/certs/server.crt
      - QUIC_KEY_FILE=/certs/server.key
    volumes:
      - ./certs:/certs:ro
      - ./logs:/logs

Related Documentation

• QUIC Protocol Overview: General QUIC implementation guide
• HTTP/3 Integration: HTTP/3 over QUIC guidance
• Performance Optimization: Tuning strategies

References

• quic-go GitHub Repository
• quic-go Documentation
• QUIC RFC 9000
• HTTP/3 RFC 9114
• Go Programming Language