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[PATCH 0/5 v4] {mac|nl}80211: Support for SAE mesh authentication in userspace

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This series adds support for SAE authentication of mesh peers in userspace.  A
fork of wpa_supplicant that can authenticate mesh peers is available here:
https://github.com/cozybit/hostap-sae  .  Our intent is to work with hostap
maintainers to merge that functionality upstream soon.

A simpler daemon is also available here:  https://github.com/cozybit/authsae.

They both require the changes proposed in this series to operate.  Also, both
are based on the SAE reference implementation from Dan Harkins available here:
http://sourceforge.net/projects/authsae/

v2: (all suggested by Johannes)
 - Userspace actually creates the stations instead of setting the AUTH flag.
 - Fix hole that would allow peer links between secured and open peers.
 - Pass multiple IEs through generic IE nl80211 attribute
 - Remove SAE constant

v3: (again Johannes)
 - Fix API backward compatibilty of NL80211_MESH_SETUP_IE
 - Remove check for presence of RSN IE

v4: (also hinted by Johannes)
 - New peer event to avoid having to scan for mesh peer candidates
 - NEW_STATION command can also accept a PLINK_ACTION argument to
   trigger or block peer link establishment immediately after an authenticated
   station is created.

Javier Cardona (5):
  mac80211: Enable mesh security from userspace
  mac80211: Let user space receive and send mesh auth/deauth frames
  mac80211: Accept mesh auth frames before a peer link has been
    established
  mac80211: Let userspace create stations when mesh security is enabled
  mac80211: New notification to discover mesh peer candidates.

 include/linux/nl80211.h    |   27 +++++++++++++++++---
 include/net/cfg80211.h     |   39 +++++++++++++++++++++++++---
 net/mac80211/cfg.c         |   22 ++++++++++------
 net/mac80211/ieee80211_i.h |    5 ++-
 net/mac80211/main.c        |    4 ++-
 net/mac80211/mesh.c        |   14 ++++++----
 net/mac80211/mesh.h        |    3 +-
 net/mac80211/mesh_plink.c  |   35 ++++++++++++++++++++-----
 net/mac80211/rx.c          |    3 +-
 net/mac80211/tx.c          |    2 +-
 net/wireless/core.h        |    6 ++++
 net/wireless/mesh.c        |   46 ++++++++++++++++++++++++++++++++-
 net/wireless/nl80211.c     |   60 +++++++++++++++++++++++++++++++++++++++----
 net/wireless/nl80211.h     |    4 +++
 net/wireless/util.c        |    5 +++
 15 files changed, 232 insertions(+), 43 deletions(-)

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