WiFiLocControl

WiFiLocControl allows you to change your macOS network location automatically based on the Wi-Fi network (SSID) you are connected to. It is particularly useful for users who use Wi-Fi at work and at home, but the network settings (for example, custom DNS configurations) you use at work don't allow your Mac to automatically connect to the same type of network at home.

Features

• Automatically changes network locations based on current Wi-Fi name.
• Supports alias configurations for multiple Wi-Fi names.
• Executes location-specific scripts.

Installation

1. Clone the repository to your local machine.

   git clone https://github.com/vborodulin/wifi-loc-control.git
   cd ./wifi-loc-control

2. Run the bootstrap script to set up the environment.

   ./bootstrap.sh    

   It will ask you for a root password to install WiFiLocControl to the /usr/local/bin directory.

Usage

To set up specific preferences for your Wi-Fi networks, keep it easy: just name your network locations after your Wi-Fi names. For example, if you want special settings for My_Home_Wi-Fi_5GHz, make a location called My_Home_Wi-Fi_5GHz. When you connect to that Wi-Fi, your location will switch automatically. If you connect to a Wi-Fi without a special name, it defaults to Automatic.

Configuration

Aliasing

If you want to share one network location between different wireless networks (for instance, you have a wireless router which broadcasts on 2.4 and 5GHz bands simultaneously), then you can create a configuration file ~/.wifi-loc-control/alias.conf (plain text file with simple key-value pairs, no spaces in between):

My_Home_Wi-Fi_5GHz=Home
My_Home_Wi-Fi_2.4GHz=Home

Where the keys are the wireless network names and the values are the desired location names.

Run Scripts on Wi-Fi Network Connection

Sometimes you want to execute a script every time you connect to a specific Wi-Fi network. For example enable stealth or enable firewall mode. Follow these steps:

• Place your scripts in ~/.wifi-loc-control/.
• Name the scripts after the Wi-Fi network name, ensuring consistency with the corresponding network locations.

Example script (~/.wifi-loc-control/My_Home_Wi-Fi_5GHz):

#!/usr/bin/env bash
# Collect all output from this script to ~/Library/Logs/WiFiLocControl.log
exec 2>&1

# Enable stealth mode which makes your computer less visible to potential attackers
/usr/libexec/ApplicationFirewall/socketfilterfw --setglobalstate on

To reset changes made by specific location scripts, create corresponding reset script. Example reset script (~/.wifi-loc-control/Automatic):

#!/usr/bin/env bash
exec 2>&1

# Disable stealth mode which makes your computer less visible to potential attackers
/usr/libexec/ApplicationFirewall/socketfilterfw --setglobalstate off

Make scripts executable

chmod +x ~/.wifi-loc-control/My_Home_Wi-Fi_5GHz
chmod +x ~/.wifi-loc-control/Automatic

Troubleshooting

Rich logs available at ~/Library/Logs/WiFiLocControl.log.

tail -f ~/Library/Logs/WiFiLocControl.log

Logs examples:

[2023-11-26 13:44:49] current wifi_name 'My_Home_Wi-Fi_5GHz'
[2023-11-26 13:44:49] network locations: Automatic Home
[2023-11-26 13:44:49] current network location 'Automatic'
[2023-11-26 13:44:49] reading alias config '/Users/vborodulin/.wifi-loc-control/alias.conf'
[2023-11-26 13:44:49] for wifi name 'My_Home_Wi-Fi_5GHz' found alias 'Home'
[2023-11-26 13:44:49] location switched to 'Home'
[2023-11-26 13:44:49] finding script for location 'Home'
[2023-11-26 13:44:49] running script '/Users/vborodulin/.wifi-loc-control/Home'

Contributing

Contributions are welcome! If you have suggestions, improvements, or encounter issues, feel free to open an issue or submit a pull request.

License

This project is licensed under the MIT License.