I am trying to find a bluetooth packet sniffer to capture bluetooth signals from close by devices. I would like for this application to work on mac osx. I have had difficulty finding anything at all so my requirements are low right now - something that shows signal strength and mac address would be a good start.
Actually, Xcode does not include the bluetooth utilities by default. You need to open Xcode, go to Xcode>Open Developer Tool>More developer tools, then login with your Apple developer account, search for the “Additional Tools” and download the package for your version of Xcode. It includes an app called PacketLogger.
Prior to Xcode 8, this package was named "Hardware IO tools".
If you want the new tools to appear in Xcode's developer tools menu, drag them to the Xcode.app/Contents/Applications folder.
If you have xcode installed, hold the option key while selecting the bluetooth icon in the menu (upper right).
You'll see some new options in the drop down menu.
(At least for 10.5.8)
I assume you are interested in BLE or Bluetooth SMART.
If so than you are looking for the Ubertooth One. You can get it here: http://greatscottgadgets.com/ubertoothone/
This article will get you started on how to do it: http://blog.cozybit.com/how-to-crack-bluetooth-le-security-using-crackle/
Or have a look here for some information: https://www.usenix.org/conference/woot13/workshop-program/presentation/ryan
It is possible to use Wireshark in conjunction with the Ubertooth on OSX to capture both Bluetooth v1-3/Classic and Bluetooth LE/v4/Smart. Unfortunately it seems that the latest version of Wireshark/libpcap cannot currently utilise any built-in MacOSX Bluetooth hardware.
The Xcode utilities for Xcode 3.2.x includes three Bluetooth utilities including a packet logger.
At the WWDC 2019 Apple announced big updates for the PacketLogger. You can get it here
After downloading move PacketLogger to your Application folder and you can start using it.
来源：https://stackoverflow.com/questions/5863088/bluetooth-sniffer-preferably-mac-osx