The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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sys/net80211/CHANGES

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    1 ***
    2 *** Summary of changes between 2005-05-18 and 2005-11-01.
    3 ***
    4 *** % setenv TZ UTC
    5 *** % cvs -d freebsdanoncvs@anoncvs.freebsd.org:/home/ncvs co src
    6 *** % cd src/sys/net80211/
    7 *** % cvs2cl --follow trunk --hide-filenames --no-indent --no-wrap \
    8 ***      -f CHANGES -l '-d 2005-05-18<=2005-11-01'
    9 ***
   10 
   11 2005-08-30 14:27  avatar
   12 
   13 Properly set ic_curchan before calling back to device driver to do channel
   14 switching(ifconfig devX channel Y).  This fix should make channel changing
   15 works again in monitor mode.
   16 
   17 Submitted by:   sam
   18 X-MFC-With:     other ic_curchan changes
   19 
   20 2005-08-13 17:50  sam
   21 
   22 revert 1.64: we cannot use the channel characteristics to decide when to
   23 do 11g erp sta accounting because b/g channels show up as false positives
   24 when operating in 11b.
   25 
   26 Noticed by:     Michal Mertl
   27 
   28 2005-08-13 17:31  sam
   29 
   30 Extend acl support to pass ioctl requests through and use this to
   31 add support for getting the current policy setting and collecting
   32 the list of mac addresses in the acl table.
   33 
   34 Submitted by:   Michal Mertl (original version)
   35 MFC after:      2 weeks
   36 
   37 2005-08-10 17:42  sam
   38 
   39 Don't use ic_curmode to decide when to do 11g station accounting,
   40 use the station channel properties.  Fixes assert failure/bogus
   41 operation when an ap is operating in 11a and has associated stations
   42 then switches to 11g.
   43 
   44 Noticed by:     Michal Mertl
   45 Reviewed by:    avatar
   46 MFC after:      2 weeks
   47 
   48 2005-08-10 16:22  sam
   49 
   50 Clarify/fix handling of the current channel:
   51 o add ic_curchan and use it uniformly for specifying the current
   52   channel instead of overloading ic->ic_bss->ni_chan (or in some
   53   drivers ic_ibss_chan)
   54 o add ieee80211_scanparams structure to encapsulate scanning-related
   55   state captured for rx frames
   56 o move rx beacon+probe response frame handling into separate routines
   57 o change beacon+probe response handling to treat the scan table
   58   more like a scan cache--look for an existing entry before adding
   59   a new one; this combined with ic_curchan use corrects handling of
   60   stations that were previously found at a different channel
   61 o move adhoc neighbor discovery by beacon+probe response frames to
   62   a new ieee80211_add_neighbor routine
   63 
   64 Reviewed by:    avatar
   65 Tested by:      avatar, Michal Mertl
   66 MFC after:      2 weeks
   67 
   68 2005-08-09 10:19  rwatson
   69 
   70 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
   71 IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
   72 ifnet.if_drv_flags.  Device drivers are now responsible for
   73 synchronizing access to these flags, as they are in if_drv_flags.  This
   74 helps prevent races between the network stack and device driver in
   75 maintaining the interface flags field.
   76 
   77 Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
   78 some less so.
   79 
   80 Reviewed by:    pjd, bz
   81 MFC after:      7 days
   82 
   83 2005-08-08 18:46  sam
   84 
   85 Split crypto tx+rx key indices and add a key index -> node mapping table:
   86 
   87 Crypto changes:
   88 o change driver/net80211 key_alloc api to return tx+rx key indices; a
   89   driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set
   90   it to be the same as the tx key index (the former disables use of
   91   the key index in building the keyix->node mapping table and is the
   92   default setup for naive drivers by null_key_alloc)
   93 o add cs_max_keyid to crypto state to specify the max h/w key index a
   94   driver will return; this is used to allocate the key index mapping
   95   table and to bounds check table loookups
   96 o while here introduce ieee80211_keyix (finally) for the type of a h/w
   97   key index
   98 o change crypto notifiers for rx failures to pass the rx key index up
   99   as appropriate (michael failure, replay, etc.)
  100 
  101 Node table changes:
  102 o optionally allocate a h/w key index to node mapping table for the
  103   station table using the max key index setting supplied by drivers
  104   (note the scan table does not get a map)
  105 o defer node table allocation to lateattach so the driver has a chance
  106   to set the max key id to size the key index map
  107 o while here also defer the aid bitmap allocation
  108 o add new ieee80211_find_rxnode_withkey api to find a sta/node entry
  109   on frame receive with an optional h/w key index to use in checking
  110   mapping table; also updates the map if it does a hash lookup and the
  111   found node has a rx key index set in the unicast key; note this work
  112   is separated from the old ieee80211_find_rxnode call so drivers do
  113   not need to be aware of the new mechanism
  114 o move some node table manipulation under the node table lock to close
  115   a race on node delete
  116 o add ieee80211_node_delucastkey to do the dirty work of deleting
  117   unicast key state for a node (deletes any key and handles key map
  118   references)
  119 
  120 Ath driver:
  121 o nuke private sc_keyixmap mechansim in favor of net80211 support
  122 o update key alloc api
  123 
  124 These changes close several race conditions for the ath driver operating
  125 in ap mode.  Other drivers should see no change.  Station mode operation
  126 for ath no longer uses the key index map but performance tests show no
  127 noticeable change and this will be fixed when the scan table is eliminated
  128 with the new scanning support.
  129 
  130 Tested by:      Michal Mertl, avatar, others
  131 Reviewed by:    avatar, others
  132 MFC after:      2 weeks
  133 
  134 2005-08-08 05:49  sam
  135 
  136 use ieee80211_iterate_nodes to retrieve station data; the previous
  137 code walked the list w/o locking
  138 
  139 MFC after:      1 week
  140 
  141 2005-08-08 03:30  sam
  142 
  143 Cleanup beacon/listen interval handling:
  144 o separate configured beacon interval from listen interval; this
  145   avoids potential use of one value for the other (e.g. setting
  146   powersavesleep to 0 clobbers the beacon interval used in hostap
  147   or ibss mode)
  148 o bounds check the beacon interval received in probe response and
  149   beacon frames and drop frames with bogus settings; not clear
  150   if we should instead clamp the value as any alteration would
  151   result in mismatched sta+ap configuration and probably be more
  152   confusing (don't want to log to the console but perhaps ok with
  153   rate limiting)
  154 o while here up max beacon interval to reflect WiFi standard
  155 
  156 Noticed by:     Martin <nakal@nurfuerspam.de>
  157 MFC after:      1 week
  158 
  159 2005-08-06 04:57  sam
  160 
  161 fix debug msg typo
  162 
  163 MFC after:      3 days
  164 
  165 2005-08-06 04:56  sam
  166 
  167 Fix handling of frames sent prior to a station being authorized
  168 when operating in ap mode.  Previously we allocated a node from the
  169 station table, sent the frame (using the node), then released the
  170 reference that "held the frame in the table".  But while the frame
  171 was in flight the node might be reclaimed which could lead to
  172 problems.  The solution is to add an ieee80211_tmp_node routine
  173 that crafts a node that does exist in a table and so isn't ever
  174 reclaimed; it exists only so long as the associated frame is in flight.
  175 
  176 MFC after:      5 days
  177 
  178 2005-07-31 06:12  sam
  179 
  180 close a race between reclaiming a node when a station is inactive
  181 and sending the null data frame used to probe inactive stations
  182 
  183 MFC after:      5 days
  184 
  185 2005-07-27 04:41  sam
  186 
  187 when bridging internally bypass the bss node as traffic to it
  188 must follow the normal input path
  189 
  190 Submitted by:   Michal Mertl
  191 MFC after:      5 days
  192 
  193 2005-07-27 02:53  sam
  194 
  195 bandaid ni_fails handling so ap's with association failures are
  196 reconsidered after a bit; a proper fix involves more changes to
  197 the scanning infrastructure
  198 
  199 Reviewed by:    avatar, David Young
  200 MFC after:      5 days
  201 
  202 2005-07-23 00:16  sam
  203 
  204 the AREF flag is only meaningful in ap mode; adhoc neighbors now
  205 are timed out of the sta/neighbor table
  206 
  207 2005-07-22 23:25  sam
  208 
  209 o move inactivity-related debug msgs under IEEE80211_MSG_INACT
  210 o probe inactive neighbors in adhoc mode (they don't have an
  211   association id so previously were being timed out)
  212 
  213 MFC after:      3 days
  214 
  215 2005-07-22 21:11  sam
  216 
  217 split xmit of probe request frame out into a separate routine that
  218 takes explicit parameters; this will be needed when scanning is
  219 decoupled from the state machine to do bg scanning
  220 
  221 MFC after:      3 days
  222 
  223 2005-07-22 20:48  sam
  224 
  225 split 802.11 frame xmit setup code into ieee80211_send_setup
  226 
  227 MFC after:      3 days
  228 
  229 2005-07-22 17:57  sam
  230 
  231 simplify ic_newassoc callback
  232 
  233 MFC after:      3 days
  234 
  235 2005-07-22 17:54  sam
  236 
  237 simplify ieee80211_ibss_merge api
  238 
  239 MFC after:      3 days
  240 
  241 2005-07-22 17:50  sam
  242 
  243 add stats we know we'll need soon and some spare fields for future expansion
  244 
  245 MFC after:      3 days
  246 
  247 2005-07-22 17:45  sam
  248 
  249 simplify tim callback api
  250 
  251 MFC after:      3 days
  252 
  253 2005-07-22 17:42  sam
  254 
  255 don't include 802.3 header in min frame length calculation as it may
  256 not be present for a frag; fixes problem with small (fragmented) frames
  257 being dropped
  258 
  259 Obtained from:  Atheros
  260 MFC after:      3 days
  261 
  262 2005-07-22 17:36  sam
  263 
  264 simplify ieee80211_node_authorize and ieee80211_node_unauthorize api's
  265 
  266 MFC after:      3 days
  267 
  268 2005-07-22 17:31  sam
  269 
  270 simplifiy ieee80211_send_nulldata api
  271 
  272 MFC after:      3 days
  273 
  274 2005-07-22 17:29  sam
  275 
  276 simplify rate set api's by removing ic parameter (implicit in node reference)
  277 
  278 MFC after:      3 days
  279 
  280 2005-07-22 17:21  sam
  281 
  282 reject association requests with a wpa/rsn ie when wpa/rsn is not
  283 configured on the ap; previously we either ignored the ie or (possibly)
  284 failed an assertion
  285 
  286 Obtained from:  Atheros
  287 MFC after:      3 days
  288 
  289 2005-07-22 17:16  sam
  290 
  291 missed one in last commit; add device name to discard msgs
  292 
  293 2005-07-22 17:13  sam
  294 
  295 include device name in discard msgs
  296 
  297 2005-07-22 17:12  sam
  298 
  299 add diag msgs for frames discarded because the direction field is wrong
  300 
  301 2005-07-22 17:08  sam
  302 
  303 split data frame delivery out to a new function ieee80211_deliver_data
  304 
  305 2005-07-22 17:00  sam
  306 
  307 o add IEEE80211_IOC_FRAGTHRESHOLD for getting+setting the
  308   tx fragmentation threshold
  309 o fix bounds checking on IEEE80211_IOC_RTSTHRESHOLD
  310 
  311 MFC after:      3 days
  312 
  313 2005-07-22 16:55  sam
  314 
  315 o add IEEE80211_FRAG_DEFAULT
  316 o move default settings for RTS and frag thresholds to ieee80211_var.h
  317 
  318 2005-07-22 16:50  sam
  319 
  320 diff reduction against p4: define IEEE80211_FIXED_RATE_NONE and use
  321 it instead of -1
  322 
  323 2005-07-22 16:37  sam
  324 
  325 add flags missed in last merge
  326 
  327 2005-07-22 16:36  sam
  328 
  329 Diff reduction against p4:
  330 o add ic_flags_ext for eventual extention of ic_flags
  331 o define/reserve flag+capabilities bits for superg,
  332   bg scan, and roaming support
  333 o refactor debug msg macros
  334 
  335 MFC after:      3 days
  336 
  337 2005-07-22 05:17  sam
  338 
  339 send a response when an auth request is denied due to an acl;
  340 might be better to silently ignore the frame but this way we
  341 give stations a chance of figuring out what's wrong
  342 
  343 2005-07-22 05:15  sam
  344 
  345 remove excess whitespace
  346 
  347 2005-07-22 04:55  sam
  348 
  349 use IF_HANDOFF when bridging frames internally so if_start gets
  350 called; fixes communication between associated sta's
  351 
  352 MFC after:      3 days
  353 
  354 2005-07-11 03:06  sam
  355 
  356 Handle encrypt of arbitarily fragmented mbuf chains: previously
  357 we bailed if we couldn't collect the 16-bytes of data required
  358 for an aes block cipher in 2 mbufs; now we deal with it.  While
  359 here make space accounting signed so a sanity check does the
  360 right thing for malformed mbuf chains.
  361 
  362 Approved by:    re (scottl)
  363 
  364 2005-07-11 03:00  sam
  365 
  366 nuke assert that duplicates real check
  367 
  368 Reviewed by:    avatar
  369 Approved by:    re (scottl)
  370 
  371 2005-07-09 23:15  sam
  372 
  373 Change default key allocation method to do the right thing for
  374 legacy parts (i.e. those that have 4 global key slots).  We
  375 blindly assign unicast keys to key slot 0.  Devices that need
  376 alternate allocation logic must override this method.
  377 
  378 Reviewed by:    avatar
  379 Approved by:    re (scottl)
  380 
  381 2005-07-08 22:49  sam
  382 
  383 correct check for high priority wme traffic
  384 
  385 Noticed by:     Ralf Assmann
  386 Reviewed by:    apatti
  387 Approved by:    re (scottl)
  388 
  389 2005-07-08 16:36  sam
  390 
  391 fix another instance of the MORE_DATA bit handling for frames on the
  392 power save queue (missed in previous commit)
  393 
  394 Submitted by:   Bruno Randolf
  395 Approved by:    re (scottl)
  396 
  397 2005-07-06 15:38  sam
  398 
  399 add "pureg" mode for ap operation: reject association requests from
  400 11b-only stations when operating in 11g
  401 
  402 Reviewed by:    avatar
  403 Approved by:    re (scottl)
  404 
  405 2005-07-06 01:55  sam
  406 
  407 Fix handling of data frames queued for a station in power save mode:
  408 don't mark the MORE_DATA bit when taking it off the ps queue, there's
  409 no 802.11 header then; we must wait to do this at encap time so
  410 mark the mbuf instead.
  411 
  412 Reviewed by:    avatar
  413 Approved by:    re (scottl)
  414 Obtained from:  Atheros
  415 
  416 2005-07-06 01:51  sam
  417 
  418 Fix race condition in handling node reference counts for authenticating
  419 stations in ap mode.  Track when a node's first auth frame is
  420 received and use this to decide whether or not to bump the refcnt.
  421 This insures we only ever bump the refcnt once.
  422 
  423 Reviewed by:    avatar
  424 Approved by:    re (scottl)
  425 
  426 2005-07-06 01:31  avatar
  427 
  428 Only update the scan entry state based on newly received frames.
  429 This fixes duplicative BSS entries(memory leaks as well) listed in
  430 "ifconfig dev list scan" when a station fails to associate with an AP.
  431 
  432 Reviewed by:    sam
  433 Approved by:    re (scottl)
  434 
  435 2005-07-05 18:05  sam
  436 
  437 remove auto-add of IEEE80211_KEY_GROUP; all the apps that need to
  438 set it have been fixed
  439 
  440 Reviewed by:    avatar
  441 Approved by:    re (scottl)
  442 
  443 2005-07-05 17:35  sam
  444 
  445 o when setting a wpa key, hold a ref on the bss node;
  446   fixes a ref cnt leak
  447 o make unicast key handling on delete identical to set
  448 o change legacy wep key api to reset the 802.11 state
  449   machine for backwards compatibility
  450 
  451 Reviewed by:    avatar
  452 Approved by:    re (scottl)
  453 
  454 2005-07-04 01:29  sam
  455 
  456 when operating in ap mode, explicitly drop associated/authenticated
  457 stations when transitioning to INIT state (e.g. as a result of
  458 changing state at the 802.11 level)
  459 
  460 Approved by:    re (scottl)
  461 
  462 2005-06-13 21:01  sam
  463 
  464 revert 1.53; it breaks ibss merge
  465 
  466 Noticed by:     Bruno Randolf
  467 Approved by:    re (dwhite)
  468 
  469 2005-06-10 21:30  sam
  470 
  471 don't look at the wme ie in a beacon unless we negotiated use
  472 
  473 2005-06-10 16:49  brooks
  474 
  475 Stop embedding struct ifnet at the top of driver softcs. Instead the
  476 struct ifnet or the layer 2 common structure it was embedded in have
  477 been replaced with a struct ifnet pointer to be filled by a call to the
  478 new function, if_alloc(). The layer 2 common structure is also allocated
  479 via if_alloc() based on the interface type. It is hung off the new
  480 struct ifnet member, if_l2com.
  481 
  482 This change removes the size of these structures from the kernel ABI and
  483 will allow us to better manage them as interfaces come and go.
  484 
  485 Other changes of note:
  486  - Struct arpcom is no longer referenced in normal interface code.
  487    Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
  488    To enforce this ac_enaddr has been renamed to _ac_enaddr.
  489  - The second argument to ether_ifattach is now always the mac address
  490    from driver private storage rather than sometimes being ac_enaddr.
  491 
  492 Reviewed by:    sobomax, sam
  493 
  494 2005-06-10 16:14  sam
  495 
  496 validate the bssid for non-data frames too when operating in
  497 adhoc/ahdemo/hostap modes
  498 
  499 2005-06-10 16:11  sam
  500 
  501 o fix wpa w/ wme: don't strip the QoS header on recv as tkip requires
  502   it; instead pass the space occupied by the header down into the
  503   crypto modules (except in the demic case which needs it only when
  504   doing int in s/w)
  505 o while here fix defrag to strip the header from 2nd and later frames
  506 o teach decap code how to handle 4-address frames
  507 
  508 2005-06-10 05:04  sam
  509 
  510 mark stations authorized during recv processing instead of doing it
  511 as a side effect of sending an auth success frame; sending mgmt
  512 frames should not have side effects
  513 
  514 2005-06-10 04:42  sam
  515 
  516 move AID implementation defines from the protocol definitions to
  517 where they are used
  518 
  519 2005-06-10 04:37  sam
  520 
  521 accept diassoc frame in ASSOC state
  522 
  523 2005-06-10 01:48  sam
  524 
  525 pull some debug msgs up so they're seen more often
  526 
  527 2005-06-10 01:47  sam
  528 
  529 kick the state machine when we receive failure notice from an ap (when
  530 operating in sta mode); this speeds up the state machine, previously
  531 we were acting on a timeout
  532 
  533 2005-06-10 01:43  sam
  534 
  535 discard open auth requests in adhoc mode
  536 
  537 2005-06-10 01:41  sam
  538 
  539 reject open auth requests when shared key auth is configured
  540 
  541 Obtained from:  Atheros
  542 
  543 2005-06-10 01:40  sam
  544 
  545 add ieee80211_send_error to encapsulate an idiom
  546 
  547 2005-06-10 01:38  sam
  548 
  549 o always check if ic_set_tim is !NULL before using it
  550 o add missing call to clear tim after flushing ps q
  551 
  552 2005-06-10 01:35  sam
  553 
  554 mark state for protection only when operating in 11g
  555 
  556 2005-06-10 01:33  sam
  557 
  558 don't reject station based on the PRIVACY bit in the capabilities;
  559 the 802.11 spec says not to
  560 
  561 Obtained from:  Atheros
  562 
  563 2005-06-10 01:31  sam
  564 
  565 correct checks for rate set compatibility
  566 
  567 2005-06-10 01:29  sam
  568 
  569 record tstamp from beacons received in station mode when associated;
  570 this is needed by drivers that want to resync their timers based on
  571 the tsf of the last recv'd beacon frame
  572 
  573 2005-06-09 04:05  sam
  574 
  575 o collect dtim period+count from beacons in station mode so drivers
  576   can better program beacon timers
  577 o leave placeholder in com structure for future ap/adhoc mode tim support
  578 
  579 Reviewed by:    avatar
  580 
  581 2005-06-07 23:37  sam
  582 
  583 Change the MLME ASSOCIATE ioctl to accept either a ssid, a bssid,
  584 or a bssid+ssid. This is needed for later versions of wpa_supplicant
  585 and for forthcoming addons to wpa_supplicant.
  586 
  587 Note this is an api change and applications must be rebuilt.
  588 
  589 2005-06-07 23:31  sam
  590 
  591 Don't clock the state machine in various cases when roaming is set
  592 to manual; this helps keep wpa_supplicant in sync.
  593 
  594 2005-06-07 00:08  sam
  595 
  596 WPA/802.11i interoperability fixes:
  597 o only include capabilities word in the WPA ie when non-zero and
  598   not preauth
  599 o always include the capabilities in the RSN ie
  600 
  601 Obtained from:  Atheros
  602 
  603 2005-06-06 04:04  sam
  604 
  605 add force flag to enmic/demic crypto api for use in xmit fragmentation
  606 and h/w mic verification
  607 
  608 Reviewed by:    avatar
  609 

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