Cobra
fd014b2a38
Implements DevTrack #530: Person Presence Intelligence daemon for BigBrother drop implant. Core components: - presence_daemon.py: 4 sensor threads (probe, ARP, DHCP, BLE) with exponential decay - presence_schema.sql: SQLite schema for persons, devices, signals, occupancy log - install.sh: Deployment script (copies to /opt/sensor/, creates systemd service) - AUDIT_impl.md: Implementation notes, limitations, audit checklist Features: - Exponential decay model (lambda=0.08/min) for signal certainty - Presence anchor (45-min hold time prevents false VACANT) - Person state machine: UNKNOWN → PRESENT ↔ ABSENT - Multi-signal fusion: max + 0.08×min for device aggregate - Thread-safe in-memory state with SQLite persistence - Matrix webhook alerting (if configured) - HTTP status endpoint on 127.0.0.1:9191 - Graceful BLE degrade if bleak unavailable - No tool fingerprints in output or service names
47 lines
1.0 KiB
Bash
47 lines
1.0 KiB
Bash
#!/bin/bash
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# Install script for presence daemon
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# Deploys sensor.py and service configuration to /opt/sensor/
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set -e
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echo "Installing presence daemon..."
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# Create sensor directory
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sudo mkdir -p /opt/sensor
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sudo chown $USER:$USER /opt/sensor
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# Copy daemon and schema
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cp presence_daemon.py /opt/sensor/sensor.py
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cp presence_schema.sql /opt/sensor/
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chmod +x /opt/sensor/sensor.py
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echo "Created /opt/sensor/sensor.py and schema"
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# Create systemd service
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sudo tee /etc/systemd/system/sensor.service > /dev/null << 'EOF'
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[Unit]
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Description=Network Sensor
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After=network.target
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[Service]
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Type=simple
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ExecStart=/usr/bin/python3 /opt/sensor/sensor.py
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Restart=on-failure
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RestartSec=10
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Environment=PRESENCE_DB_PATH=/opt/sensor/sensor.db
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[Install]
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WantedBy=multi-user.target
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EOF
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echo "Created /etc/systemd/system/sensor.service"
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# Reload systemd and enable service
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sudo systemctl daemon-reload
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sudo systemctl enable sensor
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sudo systemctl start sensor
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echo "Enabled and started sensor service"
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echo "Status:"
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sudo systemctl status sensor --no-pager | head -20
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