Quant QUIC Implementation¤
Development Status
This plugin is currently in development phase.
Plugin Type: Service (Implementation Under Test)
Verified Source Location:
plugins/services/iut/quic/quant/
Purpose and Overview¤
The Quant plugin provides integration with the Quant QUIC implementation, a research-oriented C library developed for academic and experimental QUIC protocol evaluation. Quant focuses on protocol correctness, extensibility, and research applications rather than production performance, making it ideal for protocol research and educational purposes.
The Quant implementation plugin enables:
- Academic research and protocol experimentation
- QUIC specification conformance validation
- Educational protocol analysis and learning
- Experimental feature development and testing
- Protocol extension and modification research
Requirements and Dependencies¤
The plugin requires:
- Quant Library: Academic QUIC implementation in C
- OpenSSL: Cryptographic operations and TLS 1.3
- libev: Event loop library for network operations
- Build Tools: GCC/Clang, make, cmake, pkg-config
Docker-based deployment includes all necessary dependencies and build environment.
Configuration Options¤
Version Configuration¤
Parameter | Type | Default | Description |
---|---|---|---|
version |
String | "" | Quant library version/branch |
commit |
String | "" | Specific git commit hash |
dependencies |
List | [] | Additional library dependencies |
Basic Configuration¤
Parameter | Type | Default | Description |
---|---|---|---|
role |
String | "server" | Service role: "server" or "client" |
port |
Integer | 4433 | QUIC port number |
bind_addr |
String | "0.0.0.0" | Address to bind (server mode) |
server_addr |
String | "" | Server address (client mode) |
cert_file |
String | "" | X.509 certificate file path |
key_file |
String | "" | Private key file path |
Protocol Parameters¤
Parameter | Type | Default | Description |
---|---|---|---|
quic_version |
String | "1" | QUIC version to use |
alpn_protocols |
List | ["hq-interop"] | ALPN protocol negotiation list |
initial_max_data |
Integer | 1048576 | Initial connection data limit |
initial_max_stream_data |
Integer | 262144 | Initial stream data limit |
max_streams_bidi |
Integer | 100 | Maximum bidirectional streams |
max_streams_uni |
Integer | 100 | Maximum unidirectional streams |
Research and Debug Options¤
Parameter | Type | Default | Description |
---|---|---|---|
debug_level |
Integer | 0 | Debug verbosity (0-5) |
qlog_enabled |
Boolean | false | Enable qlog tracing |
qlog_file |
String | "" | qlog output file path |
keylog_file |
String | "" | TLS keylog file for analysis |
packet_trace |
Boolean | false | Enable packet-level tracing |
Experimental Features¤
Parameter | Type | Default | Description |
---|---|---|---|
enable_0rtt |
Boolean | false | Enable 0-RTT connection establishment |
connection_migration |
Boolean | false | Enable connection migration |
multipath |
Boolean | false | Enable multipath QUIC (experimental) |
spin_bit |
Boolean | false | Enable spin bit for latency measurement |
loss_detection_algo |
String | "rfc" | Loss detection algorithm variant |
Usage Examples¤
Basic Research Setup¤
services:
iut:
type: "quant"
role: "server"
port: 4433
cert_file: "/certs/test.crt"
key_file: "/certs/test.key"
debug_level: 2
qlog_enabled: true
qlog_file: "/logs/quant-trace.qlog"
Protocol Conformance Testing¤
services:
iut:
type: "quant"
role: "server"
port: 4433
quic_version: "1"
alpn_protocols: ["hq-interop", "h3"]
initial_max_data: 1048576
max_streams_bidi: 10
keylog_file: "/debug/quant-keys.log"
packet_trace: true
Experimental Features Testing¤
services:
iut:
type: "quant"
role: "server"
port: 4433
# Enable experimental features
enable_0rtt: true
connection_migration: true
multipath: true
spin_bit: true
debug_level: 3
Client Testing Configuration¤
services:
iut:
type: "quant"
role: "client"
server_addr: "research.example.com"
port: 4433
alpn_protocols: ["hq-interop"]
qlog_enabled: true
qlog_file: "/logs/client-trace.qlog"
debug_level: 1
Features¤
Research-Oriented Design¤
- Clean Implementation: Readable, well-documented code
- Modular Architecture: Easy modification and extension
- Extensive Logging: Detailed protocol event tracing
- Debugging Support: Rich debugging and analysis tools
QUIC Protocol Support¤
- RFC 9000 Compliance: Full QUIC transport implementation
- Version Negotiation: Multi-version support for compatibility
- Stream Management: Bidirectional and unidirectional streams
- Flow Control: Connection and stream-level flow control
- Loss Recovery: Configurable loss detection algorithms
Experimental Features¤
- 0-RTT Connections: Zero Round Trip Time establishment
- Connection Migration: Transparent endpoint changes
- Multipath QUIC: Multiple network path utilization
- Spin Bit: Latency measurement support
- Custom Extensions: Framework for protocol extensions
Analysis and Debugging¤
- qlog Integration: Detailed protocol event logging
- Packet Tracing: Complete packet-level analysis
- TLS Key Logging: Cryptographic key extraction
- Performance Metrics: Connection and stream statistics
Research Applications¤
Protocol Analysis¤
- QUIC specification conformance verification
- Interoperability testing with other implementations
- Protocol behavior analysis under various conditions
- Security property validation and testing
Performance Research¤
- Congestion control algorithm evaluation
- Flow control mechanism analysis
- Loss recovery strategy comparison
- Network path utilization studies
Educational Use Cases¤
- Protocol implementation learning
- Network programming education
- Cryptographic protocol analysis
- Distributed systems research
Development and Extension¤
Custom Protocol Extensions¤
// Example: Custom frame type implementation
typedef struct custom_frame {
quant_frame_type_t type;
uint64_t custom_data;
uint8_t flags;
} custom_frame_t;
// Register custom frame handler
int register_custom_frame(quant_conn_t *conn,
custom_frame_handler_t handler);
Research Hooks¤
// Connection event callbacks
struct research_callbacks {
void (*on_packet_sent)(quant_conn_t *, quant_pkt_t *);
void (*on_packet_received)(quant_conn_t *, quant_pkt_t *);
void (*on_loss_detected)(quant_conn_t *, quant_pkt_t *);
void (*on_rtt_updated)(quant_conn_t *, uint64_t rtt);
};
Experimental Configuration¤
services:
iut:
type: "quant"
role: "server"
# Research-specific settings
custom_frame_types: [0x40, 0x41] # Experimental frame types
loss_detection_algo: "custom" # Custom algorithm
cc_algorithm: "experimental" # Research congestion control
debug_level: 5 # Maximum verbosity
Testing and Validation¤
Conformance Testing¤
- QUIC specification compliance verification
- Cross-implementation interoperability testing
- Protocol state machine validation
- Error handling correctness verification
Research Validation¤
- Custom extension functionality testing
- Performance characteristic measurement
- Protocol behavior analysis under stress
- Security property verification
Educational Testing¤
# Simple educational setup
services:
iut:
type: "quant"
role: "server"
port: 4433
debug_level: 3
qlog_enabled: true
# Simplified parameters for learning
max_streams_bidi: 1
initial_max_data: 65536
Troubleshooting¤
Common Issues¤
Build Problems
- Ensure all development dependencies are installed
- Check OpenSSL version compatibility
- Verify libev library availability
- Review compiler version requirements
Protocol Issues
- Enable debug logging to trace protocol events
- Use qlog files for detailed protocol analysis
- Check certificate configuration and validity
- Verify network connectivity and firewall rules
Research Setup Issues
- Configure appropriate debug levels for analysis
- Enable packet tracing for detailed examination
- Use keylog files for cryptographic analysis
- Set up proper qlog visualization tools
Debug Configuration¤
services:
iut:
type: "quant"
debug_level: 5 # Maximum debugging
qlog_enabled: true
qlog_file: "/debug/trace.qlog"
keylog_file: "/debug/keys.log"
packet_trace: true
Analysis Tools Integration¤
# qlog analysis with qvis
qvis /debug/trace.qlog
# Wireshark analysis with keylog
wireshark -o tls.keylog_file:/debug/keys.log capture.pcap
# Custom analysis scripts
python analyze_quant_logs.py /debug/trace.qlog
Related Documentation¤
- QUIC Protocol Overview: General QUIC implementation guide
- Research Methodologies: Research best practices
- Protocol Extensions: Extension development guide