wlan_ccmp(4)

wlan_ccmp4

Aes-ccmp crypto support for 802.11 devices

Usage

device wlan_ccmp

Overview

The wlan_ccmp module handles the AES-CCMP cryptographic requirements of the WPA and 802.11i protocols. It does encapsulation and decapsulation of CCMP-encoded 802.11 frames and optionally calculates the AES-CCMP cipher. The wlan_ccmp module is an 802.11 cryptographic plugin module for use by the wlan(4) module. This module is automatically loaded if an AES-CCMP key is configured; typically by a WPA supplicant program such as wpa_supplicant, or a WPA authenticator program such as hostapd. Should the underlying network device not be capable of doing the AES-CCMP calculations in hardware, the wlan_ccmp module will do the work.

Releases

49 releases since FreeBSD 6.0-RELEASE; the text changed 33 times.

  1. 6.0–6.3
  2. 6.4
  3. 7.0
  4. 7.1
  5. 7.2
  6. 7.3
  7. 7.4
  8. 8.0
  9. 8.1
  10. 8.2
  11. 8.3
  12. 8.4
  13. 9.0
  14. 9.1
  15. 9.2
  16. 9.3
  17. 10.0
  18. 10.1
  19. 10.2
  20. 10.3
  21. 10.4
  22. 11.0
  23. 11.1
  24. 11.2
  25. 11.3
  26. 11.4
  27. 12.0
  28. 12.1
  29. 12.2
  30. 12.3
  31. 12.4
  32. 13.0–13.2
  33. 13.3–14.5
  34. 15.0–16.0

Standards

More information can be found in the IEEE 802.11, WPA, and 802.11i Standards.

History

The wlan_ccmp driver first appeared in FreeBSD 6.0.

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's mdoc source.