FreeBSD/Linux Kernel Cross Reference
sys/net80211/CHANGES

     ***
     *** Summary of changes between 2005-05-18 and 2005-11-01.
     ***
     *** % setenv TZ UTC
     *** % cvs -d freebsdanoncvs@anoncvs.freebsd.org:/home/ncvs co src
     *** % cd src/sys/net80211/
     *** % cvs2cl --follow trunk --hide-filenames --no-indent --no-wrap \
     ***      -f CHANGES -l '-d 2005-05-18<=2005-11-01'
     ***
    
    2005-08-30 14:27  avatar
    
    Properly set ic_curchan before calling back to device driver to do channel
    switching(ifconfig devX channel Y).  This fix should make channel changing
    works again in monitor mode.
    
    Submitted by:   sam
    X-MFC-With:     other ic_curchan changes
    
    2005-08-13 17:50  sam
    
    revert 1.64: we cannot use the channel characteristics to decide when to
    do 11g erp sta accounting because b/g channels show up as false positives
    when operating in 11b.
    
    Noticed by:     Michal Mertl
    
    2005-08-13 17:31  sam
    
    Extend acl support to pass ioctl requests through and use this to
    add support for getting the current policy setting and collecting
    the list of mac addresses in the acl table.
    
    Submitted by:   Michal Mertl (original version)
    MFC after:      2 weeks
    
    2005-08-10 17:42  sam
    
    Don't use ic_curmode to decide when to do 11g station accounting,
    use the station channel properties.  Fixes assert failure/bogus
    operation when an ap is operating in 11a and has associated stations
    then switches to 11g.
    
    Noticed by:     Michal Mertl
    Reviewed by:    avatar
    MFC after:      2 weeks
    
    2005-08-10 16:22  sam
    
    Clarify/fix handling of the current channel:
    o add ic_curchan and use it uniformly for specifying the current
      channel instead of overloading ic->ic_bss->ni_chan (or in some
      drivers ic_ibss_chan)
    o add ieee80211_scanparams structure to encapsulate scanning-related
      state captured for rx frames
    o move rx beacon+probe response frame handling into separate routines
    o change beacon+probe response handling to treat the scan table
      more like a scan cache--look for an existing entry before adding
      a new one; this combined with ic_curchan use corrects handling of
      stations that were previously found at a different channel
    o move adhoc neighbor discovery by beacon+probe response frames to
      a new ieee80211_add_neighbor routine
    
    Reviewed by:    avatar
    Tested by:      avatar, Michal Mertl
    MFC after:      2 weeks
    
    2005-08-09 10:19  rwatson
    
    Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
    IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
    ifnet.if_drv_flags.  Device drivers are now responsible for
    synchronizing access to these flags, as they are in if_drv_flags.  This
    helps prevent races between the network stack and device driver in
    maintaining the interface flags field.
    
    Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
    some less so.
    
    Reviewed by:    pjd, bz
    MFC after:      7 days
    
    2005-08-08 18:46  sam
    
    Split crypto tx+rx key indices and add a key index -> node mapping table:
    
    Crypto changes:
    o change driver/net80211 key_alloc api to return tx+rx key indices; a
      driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set
      it to be the same as the tx key index (the former disables use of
      the key index in building the keyix->node mapping table and is the
      default setup for naive drivers by null_key_alloc)
    o add cs_max_keyid to crypto state to specify the max h/w key index a
      driver will return; this is used to allocate the key index mapping
      table and to bounds check table loookups
    o while here introduce ieee80211_keyix (finally) for the type of a h/w
      key index
    o change crypto notifiers for rx failures to pass the rx key index up
      as appropriate (michael failure, replay, etc.)
   
   Node table changes:
   o optionally allocate a h/w key index to node mapping table for the
     station table using the max key index setting supplied by drivers
     (note the scan table does not get a map)
   o defer node table allocation to lateattach so the driver has a chance
     to set the max key id to size the key index map
   o while here also defer the aid bitmap allocation
   o add new ieee80211_find_rxnode_withkey api to find a sta/node entry
     on frame receive with an optional h/w key index to use in checking
     mapping table; also updates the map if it does a hash lookup and the
     found node has a rx key index set in the unicast key; note this work
     is separated from the old ieee80211_find_rxnode call so drivers do
     not need to be aware of the new mechanism
   o move some node table manipulation under the node table lock to close
     a race on node delete
   o add ieee80211_node_delucastkey to do the dirty work of deleting
     unicast key state for a node (deletes any key and handles key map
     references)
   
   Ath driver:
   o nuke private sc_keyixmap mechansim in favor of net80211 support
   o update key alloc api
   
   These changes close several race conditions for the ath driver operating
   in ap mode.  Other drivers should see no change.  Station mode operation
   for ath no longer uses the key index map but performance tests show no
   noticeable change and this will be fixed when the scan table is eliminated
   with the new scanning support.
   
   Tested by:      Michal Mertl, avatar, others
   Reviewed by:    avatar, others
   MFC after:      2 weeks
   
   2005-08-08 05:49  sam
   
   use ieee80211_iterate_nodes to retrieve station data; the previous
   code walked the list w/o locking
   
   MFC after:      1 week
   
   2005-08-08 03:30  sam
   
   Cleanup beacon/listen interval handling:
   o separate configured beacon interval from listen interval; this
     avoids potential use of one value for the other (e.g. setting
     powersavesleep to 0 clobbers the beacon interval used in hostap
     or ibss mode)
   o bounds check the beacon interval received in probe response and
     beacon frames and drop frames with bogus settings; not clear
     if we should instead clamp the value as any alteration would
     result in mismatched sta+ap configuration and probably be more
     confusing (don't want to log to the console but perhaps ok with
     rate limiting)
   o while here up max beacon interval to reflect WiFi standard
   
   Noticed by:     Martin <nakal@nurfuerspam.de>
   MFC after:      1 week
   
   2005-08-06 04:57  sam
   
   fix debug msg typo
   
   MFC after:      3 days
   
   2005-08-06 04:56  sam
   
   Fix handling of frames sent prior to a station being authorized
   when operating in ap mode.  Previously we allocated a node from the
   station table, sent the frame (using the node), then released the
   reference that "held the frame in the table".  But while the frame
   was in flight the node might be reclaimed which could lead to
   problems.  The solution is to add an ieee80211_tmp_node routine
   that crafts a node that does exist in a table and so isn't ever
   reclaimed; it exists only so long as the associated frame is in flight.
   
   MFC after:      5 days
   
   2005-07-31 06:12  sam
   
   close a race between reclaiming a node when a station is inactive
   and sending the null data frame used to probe inactive stations
   
   MFC after:      5 days
   
   2005-07-27 04:41  sam
   
   when bridging internally bypass the bss node as traffic to it
   must follow the normal input path
   
   Submitted by:   Michal Mertl
   MFC after:      5 days
   
   2005-07-27 02:53  sam
   
   bandaid ni_fails handling so ap's with association failures are
   reconsidered after a bit; a proper fix involves more changes to
   the scanning infrastructure
   
   Reviewed by:    avatar, David Young
   MFC after:      5 days
   
   2005-07-23 00:16  sam
   
   the AREF flag is only meaningful in ap mode; adhoc neighbors now
   are timed out of the sta/neighbor table
   
   2005-07-22 23:25  sam
   
   o move inactivity-related debug msgs under IEEE80211_MSG_INACT
   o probe inactive neighbors in adhoc mode (they don't have an
     association id so previously were being timed out)
   
   MFC after:      3 days
   
   2005-07-22 21:11  sam
   
   split xmit of probe request frame out into a separate routine that
   takes explicit parameters; this will be needed when scanning is
   decoupled from the state machine to do bg scanning
   
   MFC after:      3 days
   
   2005-07-22 20:48  sam
   
   split 802.11 frame xmit setup code into ieee80211_send_setup
   
   MFC after:      3 days
   
   2005-07-22 17:57  sam
   
   simplify ic_newassoc callback
   
   MFC after:      3 days
   
   2005-07-22 17:54  sam
   
   simplify ieee80211_ibss_merge api
   
   MFC after:      3 days
   
   2005-07-22 17:50  sam
   
   add stats we know we'll need soon and some spare fields for future expansion
   
   MFC after:      3 days
   
   2005-07-22 17:45  sam
   
   simplify tim callback api
   
   MFC after:      3 days
   
   2005-07-22 17:42  sam
   
   don't include 802.3 header in min frame length calculation as it may
   not be present for a frag; fixes problem with small (fragmented) frames
   being dropped
   
   Obtained from:  Atheros
   MFC after:      3 days
   
   2005-07-22 17:36  sam
   
   simplify ieee80211_node_authorize and ieee80211_node_unauthorize api's
   
   MFC after:      3 days
   
   2005-07-22 17:31  sam
   
   simplifiy ieee80211_send_nulldata api
   
   MFC after:      3 days
   
   2005-07-22 17:29  sam
   
   simplify rate set api's by removing ic parameter (implicit in node reference)
   
   MFC after:      3 days
   
   2005-07-22 17:21  sam
   
   reject association requests with a wpa/rsn ie when wpa/rsn is not
   configured on the ap; previously we either ignored the ie or (possibly)
   failed an assertion
   
   Obtained from:  Atheros
   MFC after:      3 days
   
   2005-07-22 17:16  sam
   
   missed one in last commit; add device name to discard msgs
   
   2005-07-22 17:13  sam
   
   include device name in discard msgs
   
   2005-07-22 17:12  sam
   
   add diag msgs for frames discarded because the direction field is wrong
   
   2005-07-22 17:08  sam
   
   split data frame delivery out to a new function ieee80211_deliver_data
   
   2005-07-22 17:00  sam
   
   o add IEEE80211_IOC_FRAGTHRESHOLD for getting+setting the
     tx fragmentation threshold
   o fix bounds checking on IEEE80211_IOC_RTSTHRESHOLD
   
   MFC after:      3 days
   
   2005-07-22 16:55  sam
   
   o add IEEE80211_FRAG_DEFAULT
   o move default settings for RTS and frag thresholds to ieee80211_var.h
   
   2005-07-22 16:50  sam
   
   diff reduction against p4: define IEEE80211_FIXED_RATE_NONE and use
   it instead of -1
   
   2005-07-22 16:37  sam
   
   add flags missed in last merge
   
   2005-07-22 16:36  sam
   
   Diff reduction against p4:
   o add ic_flags_ext for eventual extention of ic_flags
   o define/reserve flag+capabilities bits for superg,
     bg scan, and roaming support
   o refactor debug msg macros
   
   MFC after:      3 days
   
   2005-07-22 05:17  sam
   
   send a response when an auth request is denied due to an acl;
   might be better to silently ignore the frame but this way we
   give stations a chance of figuring out what's wrong
   
   2005-07-22 05:15  sam
   
   remove excess whitespace
   
   2005-07-22 04:55  sam
   
   use IF_HANDOFF when bridging frames internally so if_start gets
   called; fixes communication between associated sta's
   
   MFC after:      3 days
   
   2005-07-11 03:06  sam
   
   Handle encrypt of arbitarily fragmented mbuf chains: previously
   we bailed if we couldn't collect the 16-bytes of data required
   for an aes block cipher in 2 mbufs; now we deal with it.  While
   here make space accounting signed so a sanity check does the
   right thing for malformed mbuf chains.
   
   Approved by:    re (scottl)
   
   2005-07-11 03:00  sam
   
   nuke assert that duplicates real check
   
   Reviewed by:    avatar
   Approved by:    re (scottl)
   
   2005-07-09 23:15  sam
   
   Change default key allocation method to do the right thing for
   legacy parts (i.e. those that have 4 global key slots).  We
   blindly assign unicast keys to key slot 0.  Devices that need
   alternate allocation logic must override this method.
   
   Reviewed by:    avatar
   Approved by:    re (scottl)
   
   2005-07-08 22:49  sam
   
   correct check for high priority wme traffic
   
   Noticed by:     Ralf Assmann
   Reviewed by:    apatti
   Approved by:    re (scottl)
   
   2005-07-08 16:36  sam
   
   fix another instance of the MORE_DATA bit handling for frames on the
   power save queue (missed in previous commit)
   
   Submitted by:   Bruno Randolf
   Approved by:    re (scottl)
   
   2005-07-06 15:38  sam
   
   add "pureg" mode for ap operation: reject association requests from
   11b-only stations when operating in 11g
   
   Reviewed by:    avatar
   Approved by:    re (scottl)
   
   2005-07-06 01:55  sam
   
   Fix handling of data frames queued for a station in power save mode:
   don't mark the MORE_DATA bit when taking it off the ps queue, there's
   no 802.11 header then; we must wait to do this at encap time so
   mark the mbuf instead.
   
   Reviewed by:    avatar
   Approved by:    re (scottl)
   Obtained from:  Atheros
   
   2005-07-06 01:51  sam
   
   Fix race condition in handling node reference counts for authenticating
   stations in ap mode.  Track when a node's first auth frame is
   received and use this to decide whether or not to bump the refcnt.
   This insures we only ever bump the refcnt once.
   
   Reviewed by:    avatar
   Approved by:    re (scottl)
   
   2005-07-06 01:31  avatar
   
   Only update the scan entry state based on newly received frames.
   This fixes duplicative BSS entries(memory leaks as well) listed in
   "ifconfig dev list scan" when a station fails to associate with an AP.
   
   Reviewed by:    sam
   Approved by:    re (scottl)
   
   2005-07-05 18:05  sam
   
   remove auto-add of IEEE80211_KEY_GROUP; all the apps that need to
   set it have been fixed
   
   Reviewed by:    avatar
   Approved by:    re (scottl)
   
   2005-07-05 17:35  sam
   
   o when setting a wpa key, hold a ref on the bss node;
     fixes a ref cnt leak
   o make unicast key handling on delete identical to set
   o change legacy wep key api to reset the 802.11 state
     machine for backwards compatibility
   
   Reviewed by:    avatar
   Approved by:    re (scottl)
   
   2005-07-04 01:29  sam
   
   when operating in ap mode, explicitly drop associated/authenticated
   stations when transitioning to INIT state (e.g. as a result of
   changing state at the 802.11 level)
   
   Approved by:    re (scottl)
   
   2005-06-13 21:01  sam
   
   revert 1.53; it breaks ibss merge
   
   Noticed by:     Bruno Randolf
   Approved by:    re (dwhite)
   
   2005-06-10 21:30  sam
   
   don't look at the wme ie in a beacon unless we negotiated use
   
   2005-06-10 16:49  brooks
   
   Stop embedding struct ifnet at the top of driver softcs. Instead the
   struct ifnet or the layer 2 common structure it was embedded in have
   been replaced with a struct ifnet pointer to be filled by a call to the
   new function, if_alloc(). The layer 2 common structure is also allocated
   via if_alloc() based on the interface type. It is hung off the new
   struct ifnet member, if_l2com.
   
   This change removes the size of these structures from the kernel ABI and
   will allow us to better manage them as interfaces come and go.
   
   Other changes of note:
    - Struct arpcom is no longer referenced in normal interface code.
      Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
      To enforce this ac_enaddr has been renamed to _ac_enaddr.
    - The second argument to ether_ifattach is now always the mac address
      from driver private storage rather than sometimes being ac_enaddr.
   
   Reviewed by:    sobomax, sam
   
   2005-06-10 16:14  sam
   
   validate the bssid for non-data frames too when operating in
   adhoc/ahdemo/hostap modes
   
   2005-06-10 16:11  sam
   
   o fix wpa w/ wme: don't strip the QoS header on recv as tkip requires
     it; instead pass the space occupied by the header down into the
     crypto modules (except in the demic case which needs it only when
     doing int in s/w)
   o while here fix defrag to strip the header from 2nd and later frames
   o teach decap code how to handle 4-address frames
   
   2005-06-10 05:04  sam
   
   mark stations authorized during recv processing instead of doing it
   as a side effect of sending an auth success frame; sending mgmt
   frames should not have side effects
   
   2005-06-10 04:42  sam
   
   move AID implementation defines from the protocol definitions to
   where they are used
   
   2005-06-10 04:37  sam
   
   accept diassoc frame in ASSOC state
   
   2005-06-10 01:48  sam
   
   pull some debug msgs up so they're seen more often
   
   2005-06-10 01:47  sam
   
   kick the state machine when we receive failure notice from an ap (when
   operating in sta mode); this speeds up the state machine, previously
   we were acting on a timeout
   
   2005-06-10 01:43  sam
   
   discard open auth requests in adhoc mode
   
   2005-06-10 01:41  sam
   
   reject open auth requests when shared key auth is configured
   
   Obtained from:  Atheros
   
   2005-06-10 01:40  sam
   
   add ieee80211_send_error to encapsulate an idiom
   
   2005-06-10 01:38  sam
   
   o always check if ic_set_tim is !NULL before using it
   o add missing call to clear tim after flushing ps q
   
   2005-06-10 01:35  sam
   
   mark state for protection only when operating in 11g
   
   2005-06-10 01:33  sam
   
   don't reject station based on the PRIVACY bit in the capabilities;
   the 802.11 spec says not to
   
   Obtained from:  Atheros
   
   2005-06-10 01:31  sam
   
   correct checks for rate set compatibility
   
   2005-06-10 01:29  sam
   
   record tstamp from beacons received in station mode when associated;
   this is needed by drivers that want to resync their timers based on
   the tsf of the last recv'd beacon frame
   
   2005-06-09 04:05  sam
   
   o collect dtim period+count from beacons in station mode so drivers
     can better program beacon timers
   o leave placeholder in com structure for future ap/adhoc mode tim support
   
   Reviewed by:    avatar
   
   2005-06-07 23:37  sam
   
   Change the MLME ASSOCIATE ioctl to accept either a ssid, a bssid,
   or a bssid+ssid. This is needed for later versions of wpa_supplicant
   and for forthcoming addons to wpa_supplicant.
   
   Note this is an api change and applications must be rebuilt.
   
   2005-06-07 23:31  sam
   
   Don't clock the state machine in various cases when roaming is set
   to manual; this helps keep wpa_supplicant in sync.
   
   2005-06-07 00:08  sam
   
   WPA/802.11i interoperability fixes:
   o only include capabilities word in the WPA ie when non-zero and
     not preauth
   o always include the capabilities in the RSN ie
   
   Obtained from:  Atheros
   
   2005-06-06 04:04  sam
   
   add force flag to enmic/demic crypto api for use in xmit fragmentation
   and h/w mic verification
   
   Reviewed by:    avatar
   

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