Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r260444:

Rename definition of IEEE80211_FC1_WEP to IEEE80211_FC1_PROTECTED.

The origin of WEP comes from IEEE Std 802.11-1997 where it defines
whether the frame body of MAC frame has been encrypted using WEP
algorithm or not.
IEEE Std. 802.11-2007 changes WEP to Protected Frame, indicates
whether the frame is protected by a cryptographic encapsulation
algorithm.

Reviewed by: adrian, rpaulo

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Update for vaps:
o do not force monitor mode; the wlanX ifnet must be an ahdemo mode vap
o move channel change work before marking ifnet up to avoid churning
the state machine
o change default ifnet name to "wlan0"

Approved by: re (kensmith)

test programs for 802.11 packet injection

Submitted by: Andrea Bittau <a.bittau@cs.ucl.ac.uk>