WLAN_GCMP(4)           FreeBSD Kernel Interfaces Manual           WLAN_GCMP(4)

NAME

     wlan_gcmp - AES-GCMP crypto support for 802.11 devices

SYNOPSIS

     device wlan_gcmp

DESCRIPTION

     The wlan_gcmp module handles the Galois/Counter Mode Protocol
     cryptographic requirements of the IEEE 802.11ad and WPA2/WPA3 protocols.
     It does encapsulation and decapsulation of GCMP-encoded 802.11 frames and
     optionally calculates the AES-GCMP cipher.  The wlan_gcmp module is an
     802.11 cryptographic plugin module for use by the wlan(4) module.  This
     module is automatically loaded if an AES-GCMP 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-GCMP calculations in hardware, the
     wlan_gcmp module will do the work.

SEE ALSO

     wlan(4), wlan_ccmp(4), wlan_tkip(4), wlan_wep(4)

STANDARDS

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

HISTORY

     The wlan_gcmp driver first appeared in FreeBSD 15.0.

FreeBSD 15.1-STABLE-HBSD         June 13, 2025                    WLAN_GCMP(4)