1. 19 Nov, 2009 5 commits
    • Johannes Berg's avatar
      mac80211: avoid spurious deauth frames/messages · a58ce43f
      Johannes Berg authored
      With WEXT, it happens frequently that the SME
      requests an authentication but then deauthenticates
      right away because some new parameters came along.
      Every time this happens we print a deauth message
      and send a deauth frame, but both of that is rather
      confusing. Avoid it by aborting the authentication
      process silently, and telling cfg80211 about that.
      
      The patch looks larger than it really is:
      __cfg80211_auth_remove() is split out from
      cfg80211_send_auth_timeout(), there's no new code
      except __cfg80211_auth_canceled() (a one-liner) and
      the mac80211 bits (7 new lines of code).
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      a58ce43f
    • Johannes Berg's avatar
      mac80211: request TX status where needed · 7351c6bd
      Johannes Berg authored
      Right now all frames mac80211 hands to the driver
      have the IEEE80211_TX_CTL_REQ_TX_STATUS flag set to
      request TX status. This isn't really necessary, only
      the injected frames need TX status (the latter for
      hostapd) so move setting this flag.
      
      The rate control algorithms also need TX status, but
      they don't require it.
      
      Also, rt2x00 uses that bit for its own purposes and
      seems to require it being set for all frames, but
      that can be fixed in rt2x00.
      
      This doesn't really change anything for any drivers
      but in the future drivers using hw-rate control may
      opt to not report TX status for frames that don't
      have the IEEE80211_TX_CTL_REQ_TX_STATUS flag set.
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Acked-by: Ivo van Doorn <IvDoorn@gmail.com> [rt2x00 bits]
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      7351c6bd
    • Johannes Berg's avatar
      cfg80211: disallow bridging managed/adhoc interfaces · ad4bb6f8
      Johannes Berg authored
      A number of people have tried to add a wireless interface
      (in managed mode) to a bridge and then complained that it
      doesn't work. It cannot work, however, because in 802.11
      networks all packets need to be acknowledged and as such
      need to be sent to the right address. Promiscuous doesn't
      help here. The wireless address format used for these
      links has only space for three addresses, the
       * transmitter, which must be equal to the sender (origin)
       * receiver (on the wireless medium), which is the AP in
         the case of managed mode
       * the recipient (destination), which is on the APs local
         network segment
      
      In an IBSS, it is similar, but the receiver and recipient
      must match and the third address is used as the BSSID.
      
      To avoid such mistakes in the future, disallow adding a
      wireless interface to a bridge.
      
      Felix has recently added a four-address mode to the AP
      and client side that can be used (after negotiating that
      it is possible, which must happen out-of-band by setting
      up both sides) for bridging, so allow that case.
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Acked-by: default avatarStephen Hemminger <shemminger@vyatta.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      ad4bb6f8
    • Johannes Berg's avatar
      cfg80211: introduce capability for 4addr mode · 9bc383de
      Johannes Berg authored
      It's very likely that not many devices will support
      four-address mode in station or AP mode so introduce
      capability bits for both modes, set them in mac80211
      and check them when userspace tries to use the mode.
      Also, keep track of 4addr in cfg80211 (wireless_dev)
      and not in mac80211 any more. mac80211 can also be
      improved for the VLAN case by not looking at the
      4addr flag but maintaining the station pointer for
      it correctly. However, keep track of use_4addr for
      station mode in mac80211 to avoid all the derefs.
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      9bc383de
    • Johannes Berg's avatar
      cfg80211: convert bools into flags · 5be83de5
      Johannes Berg authored
      We've accumulated a number of options for wiphys
      which make more sense as flags as we keep adding
      more. Convert the existing ones.
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      5be83de5
  2. 18 Nov, 2009 35 commits