tty-egpf-monitor 0.6.4

Python client library for TTY eBPF Monitor daemon

TTY eBPF Monitor Python Client

A Python client library for TTY eBPF Monitor, providing a clean, Pythonic interface to monitor serial port activity using eBPF technology.

Features

• 🐍 Pure Python - No C dependencies, works with any Python 3.8+
• 🔌 Unix Socket API - Communicates with daemon via Unix domain socket
• 📊 Parsed Log Entries - Automatic parsing of log format with timestamps
• 🔄 Live Streaming - Real-time event streaming with iterator interface
• 🛠️ CLI Wrapper - Drop-in replacement for the C CLI tool
• 📚 Rich Examples - Comprehensive examples for common use cases
• 🔍 Data Analysis - Built-in support for protocol analysis and debugging

Installation

Install from PyPI

pip install tty-egpf-monitor

Install the Daemon

The Python client requires the tty-egpf-monitord daemon to be running:

# Install daemon via APT repository
curl -fsSL https://raw.githubusercontent.com/seelso-net/tty-egpf-monitor/main/install.sh | bash

# Or install manually
CODENAME=$(lsb_release -cs)
REPO_URL=https://seelso-net.github.io/tty-egpf-monitor
curl -fsSL ${REPO_URL}/public-apt-key.asc | sudo gpg --dearmor -o /usr/share/keyrings/tty-egpf-monitor.gpg
echo "deb [signed-by=/usr/share/keyrings/tty-egpf-monitor.gpg] ${REPO_URL} ${CODENAME} main" | sudo tee /etc/apt/sources.list.d/tty-egpf-monitor.list
sudo apt-get update && sudo apt-get install -y tty-egpf-monitord
sudo systemctl enable --now tty-egpf-monitord

Quick Start

Library Usage

from tty_egpf_monitor import TTYMonitorClient

# Create client
client = TTYMonitorClient()

# Add a port to monitor
idx = client.add_port("/dev/ttyUSB0", baudrate=115200)
print(f"Monitoring port {idx}")

# List all ports
ports = client.list_ports()
for port in ports:
    print(f"Port {port.idx}: {port.device}")

# Stream live events
for entry in client.stream_parsed_logs("/dev/ttyUSB0"):
    print(f"[{entry.timestamp}] {entry.event_type}: {entry.process}")
    if entry.data:
        print(f"  Data: {entry.data}")

# Remove port when done
client.remove_port("/dev/ttyUSB0")

CLI Usage

The package includes a CLI tool compatible with the C version:

# Add a port
tty-egpf-monitor-py add /dev/ttyUSB0 115200

# List ports
tty-egpf-monitor-py list

# Stream logs (by index or device path)
tty-egpf-monitor-py stream 0
tty-egpf-monitor-py stream /dev/ttyUSB0

# Download logs
tty-egpf-monitor-py logs /dev/ttyUSB0 > captured.jsonl

# Remove port
tty-egpf-monitor-py remove /dev/ttyUSB0

API Reference

TTYMonitorClient

Methods

• list_ports() → List[Port]

  List all configured ports.

• add_port(device, baudrate=115200, log_path=None) → int

  Add a port to monitor. Returns the port index.

• remove_port(port_identifier) → bool

  Remove a port by index (int) or device path (str).

• get_logs(port_identifier) → str

  Download full log content for a port.

• stream_logs(port_identifier) → Iterator[str]

  Stream raw log lines as they arrive.

• stream_parsed_logs(port_identifier) → Iterator[LogEntry]

  Stream parsed log entries as they arrive.

• wait_for_event(port_identifier, event_type, timeout=30.0) → Optional[LogEntry]

  Wait for a specific event type with timeout.

LogEntry

Represents a parsed log entry:

@dataclass
class LogEntry:
    timestamp: datetime      # When the event occurred
    event_type: str         # OPEN, CLOSE, READ, WRITE, IOCTL, MODE_CHANGE
    process: str            # Process name that triggered the event
    direction: Optional[str] # APP->DEV or DEV->APP (for READ/write)
    data: Optional[bytes]   # Raw data (for read/write events)
    raw_line: str          # Original log line

Port

Represents a monitored port:

@dataclass  
class Port:
    idx: int                    # Port index
    device: str                # Device path
    baudrate: Optional[int]     # Configured baud rate
    log_path: Optional[str]     # Log file path

Examples

See the examples/ directory for comprehensive usage examples:

• basic_usage.py - Core functionality demonstration
• monitor_serial_data.py - Real-time monitoring with processing
• automation_script.py - Automated testing and analysis

Error Handling

from tty_egpf_monitor import TTYMonitorError

try:
    client = TTYMonitorClient()
    client.add_port("/dev/ttyUSB0")
except TTYMonitorError as e:
    print(f"Error: {e}")

Requirements

• Python: 3.8 or later
• Operating System: Linux (Ubuntu 22.04+ recommended)
• Daemon: tty-egpf-monitord must be installed and running
• Permissions: Access to the daemon's Unix socket (usually /run/tty-egpf-monitord.sock)

Related Projects

• TTY eBPF Monitor - Main project with C daemon and CLI
• APT Repository - Binary packages for Ubuntu

License

This project is licensed under the GNU General Public License v3.0 - see the LICENSE file for details.