1. 27 Jul, 2009 1 commit
    • Johannes Berg's avatar
      cfg80211: make aware of net namespaces · 463d0183
      Johannes Berg authored
      In order to make cfg80211/nl80211 aware of network namespaces,
      we have to do the following things:
      
       * del_virtual_intf method takes an interface index rather
         than a netdev pointer - simply change this
      
       * nl80211 uses init_net a lot, it changes to use the sender's
         network namespace
      
       * scan requests use the interface index, hold a netdev pointer
         and reference instead
      
       * we want a wiphy and its associated virtual interfaces to be
         in one netns together, so
          - we need to be able to change ns for a given interface, so
            export dev_change_net_namespace()
          - for each virtual interface set the NETIF_F_NETNS_LOCAL
            flag, and clear that flag only when the wiphy changes ns,
            to disallow breaking this invariant
      
       * when a network namespace goes away, we need to reparent the
         wiphy to init_net
      
       * cfg80211 users that support creating virtual interfaces must
         create them in the wiphy's namespace, currently this affects
         only mac80211
      
      The end result is that you can now switch an entire wiphy into
      a different network namespace with the new command
      	iw phy#<idx> set netns <pid>
      and all virtual interfaces will follow (or the operation fails).
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      463d0183
  2. 24 Jul, 2009 3 commits
    • Johannes Berg's avatar
      nl80211: report BSS status · 48ab905d
      Johannes Berg authored
      When connected to a BSS, or joined to an IBSS, we'll want
      to know in userspace without using wireless extensions, so
      report the BSS status in the BSS list. Userspace can query
      the BSS list, display all the information and retrieve the
      station information as well.
      
      For example (from hwsim):
      
      $ iw dev wlan1 scan dump
      BSS 02:00:00:00:00:00 (on wlan1) -- associated
      	freq: 2462
      	beacon interval: 100
      	capability: ESS ShortSlotTime (0x0401)
      	signal: -50.00 dBm
      	SSID: j
      	Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
      	DS Paramater set: channel 11
      	ERP: <no flags>
      	Extended supported rates: 24.0 36.0 48.0 54.0
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      48ab905d
    • Johannes Berg's avatar
      cfg80211: rework key operation · fffd0934
      Johannes Berg authored
      This reworks the key operation in cfg80211, and now only
      allows, from userspace, configuring keys (via nl80211)
      after the connection has been established (in managed
      mode), the IBSS been joined (in IBSS mode), at any time
      (in AP[_VLAN] modes) or never for all the other modes.
      
      In order to do shared key authentication correctly, it
      is now possible to give a WEP key to the AUTH command.
      To configure static WEP keys, these are given to the
      CONNECT or IBSS_JOIN command directly, for a userspace
      SME it is assumed it will configure it properly after
      the connection has been established.
      
      Since mac80211 used to check the default key in IBSS
      mode to see whether or not the network is protected,
      it needs an update in that area, as well as an update
      to make use of the WEP key passed to auth() for shared
      key authentication.
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      fffd0934
    • Johannes Berg's avatar
      nl80211: introduce new key attributes · b9454e83
      Johannes Berg authored
      We will soon want to nest key attributes into
      some new attribute for configuring static WEP
      keys at connect() and ibss_join() time, so we
      need nested attributes for that. However, key
      attributes right now are 'global'. This patch
      thus introduces new nested attributes for the
      key settings and functions for parsing them.
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      b9454e83
  3. 10 Jul, 2009 3 commits
    • Johannes Berg's avatar
      cfg80211: let SME control reassociation vs. association · 3e5d7649
      Johannes Berg authored
      Since we don't really know that well in the kernel,
      let's let the SME control whether it wants to use
      reassociation or not, by allowing it to give the
      previous BSSID in the associate() parameters.
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      3e5d7649
    • Samuel Ortiz's avatar
      cfg80211: connect/disconnect API · b23aa676
      Samuel Ortiz authored
      This patch introduces the cfg80211 connect/disconnect API.
      The goal here is to run the AUTH and ASSOC steps in one call.
      This is needed for some fullmac cards that run both steps
      directly from the target, after the host driver sends a
      connect command.
      
      Additionally, all the new crypto parameters for connect()
      are now also valid for associate() -- although associate
      requires the IEs to be used, the information can be useful
      for drivers and should be given.
      Signed-off-by: default avatarSamuel Ortiz <samuel.ortiz@intel.com>
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      b23aa676
    • Johannes Berg's avatar
      cfg80211: introduce nl80211 testmode command · aff89a9b
      Johannes Berg authored
      This introduces a new NL80211_CMD_TESTMODE for testing
      and calibration use with nl80211. There's no multiplexing
      like like iwpriv had, and the command is not available by
      default, it needs to be explicitly enabled in Kconfig and
      shouldn't be enabled in most kernels.
      
      The command requires a wiphy index or interface index to
      identify the device to operate on, and the new TESTDATA
      attribute. There also is API for sending replies to the
      command, and testmode multicast messages (on a testmode
      multicast group).
      
      I've also updated mac80211 to be able to pass through the
      command to the driver, since it itself doesn't implement
      the testmode command.
      
      Additionally, to give people an idea of how to use the
      command, I've added a little code to hwsim that makes use
      of the new command to set the powersave mode, this is
      currently done via debugfs and should remain there, and
      the testmode command only serves as an example of how to
      use this best -- with nested netlink attributes in the
      TESTDATA attribute. A hwsim testmode tool can be found at
      http://git.sipsolutions.net/hwsim.git/. This tool is BSD
      licensed so people can easily use it as a basis for their
      own internal fabrication and validation tools.
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      aff89a9b
  4. 13 May, 2009 3 commits
  5. 11 May, 2009 1 commit
    • Jouni Malinen's avatar
      nl80211 : Add support for configuring MFP · dc6382ce
      Jouni Malinen authored
      NL80211_CMD_ASSOCIATE request must be able to indicate whether
      management frame protection (IEEE 802.11w) is being used. mac80211 was
      able to use MFP in client mode only with WEXT, but the new
      NL80211_ATTR_USE_MFP attribute will allow this to be done with
      nl80211, too.
      
      Since we are currently using nl80211 for MFP only with drivers that
      use user space SME, only MFP disabled and required values are
      used. However, the NL80211_ATTR_USE_MFP attribute is an enum that can
      be extended with MFP optional in the future, if that is needed with
      some drivers (e.g., if the RSN IE is generated by the driver).
      Signed-off-by: default avatarJouni Malinen <jouni.malinen@atheros.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      dc6382ce
  6. 22 Apr, 2009 8 commits
  7. 27 Mar, 2009 4 commits
    • Jouni Malinen's avatar
      nl80211: Remove NL80211_CMD_SET_MGMT_EXTRA_IE · 65fc73ac
      Jouni Malinen authored
      The functionality that NL80211_CMD_SET_MGMT_EXTRA_IE provided can now
      be achieved with cleaner design by adding IE(s) into
      NL80211_CMD_TRIGGER_SCAN, NL80211_CMD_AUTHENTICATE,
      NL80211_CMD_ASSOCIATE, NL80211_CMD_DEAUTHENTICATE, and
      NL80211_CMD_DISASSOCIATE.
      
      Since this is a very recently added command and there are no known (or
      known planned) applications using NL80211_CMD_SET_MGMT_EXTRA_IE and
      taken into account how much extra complexity it adds to the IE
      processing we have now (and need to add in the future to fix IE order
      in couple of frames), it looks like the best option is to just remove
      the implementation of this command for now. The enum values themselves
      are left to avoid changing the nl80211 command or attribute numbers.
      Signed-off-by: default avatarJouni Malinen <jouni.malinen@atheros.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      65fc73ac
    • Jouni Malinen's avatar
      nl80211: Add MLME primitives to support external SME · 636a5d36
      Jouni Malinen authored
      This patch adds new nl80211 commands to allow user space to request
      authentication and association (and also deauthentication and
      disassociation). The commands are structured to allow separate
      authentication and association steps, i.e., the interface between
      kernel and user space is similar to the MLME SAP interface in IEEE
      802.11 standard and an user space application takes the role of the
      SME.
      
      The patch introduces MLME-AUTHENTICATE.request,
      MLME-{,RE}ASSOCIATE.request, MLME-DEAUTHENTICATE.request, and
      MLME-DISASSOCIATE.request primitives. The authentication and
      association commands request the actual operations in two steps
      (assuming the driver supports this; if not, separate authentication
      step is skipped; this could end up being a separate "connect"
      command).
      
      The initial implementation for mac80211 uses the current
      net/mac80211/mlme.c for actual sending and processing of management
      frames and the new nl80211 commands will just stop the current state
      machine from moving automatically from authentication to association.
      Future cleanup may move more of the MLME operations into cfg80211.
      
      The goal of this design is to provide more control of authentication and
      association process to user space without having to move the full MLME
      implementation. This should be enough to allow IEEE 802.11r FT protocol
      and 802.11s SAE authentication to be implemented. Obviously, this will
      also bring the extra benefit of not having to use WEXT for association
      requests with mac80211. An example implementation of a user space SME
      using the new nl80211 commands is available for wpa_supplicant.
      
      This patch is enough to get IEEE 802.11r FT protocol working with
      over-the-air mechanism (over-the-DS will need additional MLME
      primitives for handling the FT Action frames).
      Signed-off-by: default avatarJouni Malinen <j@w1.fi>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      636a5d36
    • Jouni Malinen's avatar
      nl80211: Event notifications for MLME events · 6039f6d2
      Jouni Malinen authored
      Add new nl80211 event notifications (and a new multicast group, "mlme")
      for informing user space about received and processed Authentication,
      (Re)Association Response, Deauthentication, and Disassociation frames in
      station and IBSS modes (i.e., MLME SAP interface primitives
      MLME-AUTHENTICATE.confirm, MLME-ASSOCIATE.confirm,
      MLME-REASSOCIATE.confirm, MLME-DEAUTHENTICATE.indicate, and
      MLME-DISASSOCIATE.indication). The event data is encapsulated as the 802.11
      management frame since we already have the frame in that format and it
      includes all the needed information.
      
      This is the initial step in providing MLME SAP interface for
      authentication and association with nl80211. In other words, kernel code
      will act as the MLME and a user space application can control it as the
      SME.
      Signed-off-by: default avatarJouni Malinen <j@w1.fi>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      6039f6d2
    • Johannes Berg's avatar
      nl80211: export supported commands · 8fdc621d
      Johannes Berg authored
      This makes nl80211 export the supported commands (command groups)
      per wiphy so userspace has an idea what it can do -- this will be
      required reading for userspace when we introduce auth/assoc /or/
      connect for older hardware that cannot separate auth and assoc.
      Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      8fdc621d
  8. 16 Mar, 2009 2 commits
  9. 27 Feb, 2009 1 commit
  10. 13 Feb, 2009 1 commit
  11. 09 Feb, 2009 1 commit
  12. 29 Jan, 2009 4 commits
  13. 19 Dec, 2008 2 commits
  14. 05 Dec, 2008 2 commits
  15. 26 Nov, 2008 2 commits
  16. 10 Nov, 2008 2 commits