• Javier Cardona's avatar
    mac80211: Use 3-address format for mesh broadcast frames. · 3c5772a5
    Javier Cardona authored
    The 11s task group recently changed the frame mesh multicast/broadcast frame
    format to use 3-address.  This was done to avoid interactions with widely
    deployed lazy-WDS access points.
    
    This patch changes the format of group addressed frames, both mesh-originated
    and proxied, to use the data format defined in draft D2.08 and forward.  The
    address fields used for group addressed frames is:
    
    In 802.11 header
     ToDS:0  FromDS:1
     addr1: DA  (broadcast/multicast address)
     addr2: TA
     addr3: Mesh SA
    
    In address extension header:
     addr4: SA  (only present if frame was proxied)
    
    Note that this change breaks backward compatibility with earlier mesh stack
    versions.
    Signed-off-by: default avatarAndrey Yurovsky <andrey@cozybit.com>
    Signed-off-by: default avatarJavier Cardona <javier@cozybit.com>
    Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
    3c5772a5
util.c 14.3 KB