OGuard

Work in progress

OGuard is an open source alternative to the NetGuard software used by Dynamix UPSs. This is only intended to support the "Dynamix UPSD2000 Defender" as this is the only model I own so I won't be implementing the protocols for other UPS devices

Stack

• Monitor (Rust) - Software that tracks the state changes, interacts with the UPS, stores the data, exposes an HTTP API
• Webapp (Svelte, Typescript) - Web application for viewing the app information, state, graphs etc, managing actions and configuration

Implemented

• Can detect common events (AC Lost, AC Recovered, Fault, Low Battery Start, Low Battery End, Battery Test Start, Battery Test End)
• Events are stored in a SQLite database
• Events are reported through desktop notifications
• Keeps track of a history of the battery and device state (Tracked every minute and stored in the database)
• History API, can view all events, battery and device states over time, allows filtering and sorting through tables on frontend
• Realtime control APIs, control buzzer and battery tests
• Current state API, get the current device and battery states
• Event Pipeline system for triggering actions based on different events (Configurable from webapp)
• Authentication & Authorization for mutating actions

WebUI

Below is a screenshot of the WIP web UI for the app to monitor the capacity and load:

Home Page	Events Page	History Page
Event Pipelines Page	Configure Page	Realtime Control Page
Login Page	Create Event Pipeline Page	Add action
Add action settings	Create pipeline with actions	Event types
Edit pipeline

Linux

Configuration

The configuration file is loaded from /etc/oguard/config.toml you can find an example Here

The commands below will set the current config to the example config

# Create the config directory (Only required for first time)
sudo mkdir /etc/oguard

# Copy the example config
sudo cp ./example-config.toml /etc/oguard/config.toml

Development is done on Fedora you will need to adapt these commands to your specific distribution

Native Dependencies

libudev - Used for USB device access, required to build the executable

sudo dnf install libudev-devel 

Unprivileged USB access

By default linux will not allow access to HID devices without sudo.

You can allow unprivileged access to the UPS HID device by doing the following

Create a rules file at /etc/udev/rules.d/50-oguard.rules in this file put the following line:

KERNEL=="hidraw*", ATTRS{idVendor}=="0665", ATTRS{idProduct}=="5161", TAG+="uaccess"

Then, replug your device or run:

sudo udevadm control --reload-rules && sudo udevadm trigger

This will allow the program to access the device without requiring sudo

Installation

Below are the instructions for installing:

# Build release binary
cargo build --release

# Copy release binary to /usr/local/bin
sudo cp ./target/release/oguard /usr/local/bin/oguard

# Create the config directory
sudo mkdir /etc/oguard

# Copy the example config
sudo cp ./example-config.toml /etc/oguard/config.toml

# Copy service to systemd
sudo cp ./oguard.service /etc/systemd/system/oguard.service

# Reload systemctl 
sudo systemctl daemon-reload

# Start the service
sudo systemctl start oguard

# Enable automatic start on boot
sudo systemctl enable oguard

# Verify the service has started
sudo systemctl status oguard

Paths

Linux

• Config file: /etc/oguard/config.toml
• Log file: /usr/local/share/oguard/server.log
• Database file: /usr/local/share/oguard/app.db

Windows

(Relative to the executable working directory)

• Config file: ./config.toml
• Log file: ./data/server.log
• Database file: ./data/app.db

Building Windows Setup

You can build the Windows setup.exe installer which handles adding the Windows service and setting everything up. The installer setup uses Inno Setup, download and install Inno Setup then load the .iss into the Inno Setup Compiler and select Build > Compile from the menu.