feat: Complete Rust port of WiFi-DensePose with modular crates
Major changes: - Organized Python v1 implementation into v1/ subdirectory - Created Rust workspace with 9 modular crates: - wifi-densepose-core: Core types, traits, errors - wifi-densepose-signal: CSI processing, phase sanitization, FFT - wifi-densepose-nn: Neural network inference (ONNX/Candle/tch) - wifi-densepose-api: Axum-based REST/WebSocket API - wifi-densepose-db: SQLx database layer - wifi-densepose-config: Configuration management - wifi-densepose-hardware: Hardware abstraction - wifi-densepose-wasm: WebAssembly bindings - wifi-densepose-cli: Command-line interface Documentation: - ADR-001: Workspace structure - ADR-002: Signal processing library selection - ADR-003: Neural network inference strategy - DDD domain model with bounded contexts Testing: - 69 tests passing across all crates - Signal processing: 45 tests - Neural networks: 21 tests - Core: 3 doc tests Performance targets: - 10x faster CSI processing (~0.5ms vs ~5ms) - 5x lower memory usage (~100MB vs ~500MB) - WASM support for browser deployment
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Claude
238
v1/src/hardware/router_interface.py
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238
v1/src/hardware/router_interface.py
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"""Router interface for WiFi-DensePose system using TDD approach."""
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import asyncio
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import logging
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from typing import Dict, Any, Optional
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import asyncssh
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from datetime import datetime, timezone
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import numpy as np
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try:
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from .csi_extractor import CSIData
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except ImportError:
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# Handle import for testing
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from src.hardware.csi_extractor import CSIData
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class RouterConnectionError(Exception):
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"""Exception raised for router connection errors."""
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pass
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class RouterInterface:
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"""Interface for communicating with WiFi routers via SSH."""
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def __init__(self, config: Dict[str, Any], logger: Optional[logging.Logger] = None):
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"""Initialize router interface.
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Args:
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config: Configuration dictionary with connection parameters
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logger: Optional logger instance
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Raises:
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ValueError: If configuration is invalid
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"""
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self._validate_config(config)
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self.config = config
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self.logger = logger or logging.getLogger(__name__)
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# Connection parameters
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self.host = config['host']
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self.port = config['port']
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self.username = config['username']
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self.password = config['password']
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self.command_timeout = config.get('command_timeout', 30)
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self.connection_timeout = config.get('connection_timeout', 10)
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self.max_retries = config.get('max_retries', 3)
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self.retry_delay = config.get('retry_delay', 1.0)
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# Connection state
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self.is_connected = False
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self.ssh_client = None
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def _validate_config(self, config: Dict[str, Any]) -> None:
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"""Validate configuration parameters.
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Args:
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config: Configuration to validate
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Raises:
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ValueError: If configuration is invalid
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"""
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required_fields = ['host', 'port', 'username', 'password']
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missing_fields = [field for field in required_fields if field not in config]
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if missing_fields:
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raise ValueError(f"Missing required configuration: {missing_fields}")
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if not isinstance(config['port'], int) or config['port'] <= 0:
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raise ValueError("Port must be a positive integer")
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async def connect(self) -> bool:
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"""Establish SSH connection to router.
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Returns:
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True if connection successful, False otherwise
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"""
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try:
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self.ssh_client = await asyncssh.connect(
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self.host,
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port=self.port,
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username=self.username,
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password=self.password,
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connect_timeout=self.connection_timeout
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)
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self.is_connected = True
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self.logger.info(f"Connected to router at {self.host}:{self.port}")
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return True
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except Exception as e:
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self.logger.error(f"Failed to connect to router: {e}")
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self.is_connected = False
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self.ssh_client = None
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return False
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async def disconnect(self) -> None:
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"""Disconnect from router."""
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if self.is_connected and self.ssh_client:
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self.ssh_client.close()
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self.is_connected = False
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self.ssh_client = None
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self.logger.info("Disconnected from router")
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async def execute_command(self, command: str) -> str:
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"""Execute command on router via SSH.
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Args:
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command: Command to execute
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Returns:
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Command output
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Raises:
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RouterConnectionError: If not connected or command fails
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"""
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if not self.is_connected:
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raise RouterConnectionError("Not connected to router")
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# Retry mechanism for temporary failures
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for attempt in range(self.max_retries):
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try:
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result = await self.ssh_client.run(command, timeout=self.command_timeout)
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if result.returncode != 0:
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raise RouterConnectionError(f"Command failed: {result.stderr}")
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return result.stdout
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except ConnectionError as e:
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if attempt < self.max_retries - 1:
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self.logger.warning(f"Command attempt {attempt + 1} failed, retrying: {e}")
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await asyncio.sleep(self.retry_delay)
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else:
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raise RouterConnectionError(f"Command execution failed after {self.max_retries} retries: {e}")
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except Exception as e:
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raise RouterConnectionError(f"Command execution error: {e}")
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async def get_csi_data(self) -> CSIData:
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"""Retrieve CSI data from router.
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Returns:
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CSI data structure
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Raises:
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RouterConnectionError: If data retrieval fails
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"""
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try:
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response = await self.execute_command("iwlist scan | grep CSI")
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return self._parse_csi_response(response)
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except Exception as e:
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raise RouterConnectionError(f"Failed to retrieve CSI data: {e}")
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async def get_router_status(self) -> Dict[str, Any]:
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"""Get router system status.
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Returns:
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Dictionary containing router status information
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Raises:
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RouterConnectionError: If status retrieval fails
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"""
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try:
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response = await self.execute_command("cat /proc/stat && free && iwconfig")
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return self._parse_status_response(response)
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except Exception as e:
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raise RouterConnectionError(f"Failed to retrieve router status: {e}")
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async def configure_csi_monitoring(self, config: Dict[str, Any]) -> bool:
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"""Configure CSI monitoring on router.
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Args:
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config: CSI monitoring configuration
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Returns:
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True if configuration successful, False otherwise
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"""
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try:
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channel = config.get('channel', 6)
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command = f"iwconfig wlan0 channel {channel} && echo 'CSI monitoring configured'"
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await self.execute_command(command)
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return True
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except Exception as e:
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self.logger.error(f"Failed to configure CSI monitoring: {e}")
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return False
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async def health_check(self) -> bool:
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"""Perform health check on router.
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Returns:
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True if router is healthy, False otherwise
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"""
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try:
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response = await self.execute_command("echo 'ping' && echo 'pong'")
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return "pong" in response
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except Exception as e:
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self.logger.error(f"Health check failed: {e}")
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return False
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def _parse_csi_response(self, response: str) -> CSIData:
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"""Parse CSI response data.
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Args:
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response: Raw response from router
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Returns:
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Parsed CSI data
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"""
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# Mock implementation for testing
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# In real implementation, this would parse actual router CSI format
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return CSIData(
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timestamp=datetime.now(timezone.utc),
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amplitude=np.random.rand(3, 56),
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phase=np.random.rand(3, 56),
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frequency=2.4e9,
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bandwidth=20e6,
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num_subcarriers=56,
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num_antennas=3,
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snr=15.0,
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metadata={'source': 'router', 'raw_response': response}
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)
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def _parse_status_response(self, response: str) -> Dict[str, Any]:
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"""Parse router status response.
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Args:
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response: Raw response from router
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Returns:
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Parsed status information
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"""
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# Mock implementation for testing
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# In real implementation, this would parse actual system status
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return {
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'cpu_usage': 25.5,
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'memory_usage': 60.2,
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'wifi_status': 'active',
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'uptime': '5 days, 3 hours',
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'raw_response': response
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}
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