Commit Graph

20 Commits

Author SHA1 Message Date
Sam Leffler
79edaebfe4 Correct several issues with rate set negotiation:
o add IEEE80211_F_JOIN flag to ieee80211_fix_rate to indicate a station
  is joining a BSS; this is used to control whether or not we over-write
  the basic rate bit in the calculated rate set
o fix ieee80211_fix_rate to honor IEEE80211_F_DODEL when IEEE80211_F_DONEGO
  is not specified (e.g. when joining an ibss network)
o on sta join always delete unusable rates from the negotiated rate set,
  this was being done only ibss networks but is also needed for 11g bss
  with mixed stations
o on sta join delete unusable rates from the bss node's rate set, not the
  scan table entry's rate set
o when calculating a rate set for new neighbors in an ibss caculate a
  negotiated rate set so drivers are not presented with rates they should
  not use

Submitted by:	Sepherosa Ziehau (w/ modifications)
Obtained from:	DragonFly
MFC after:	1 month
2007-01-08 17:24:51 +00:00
Sam Leffler
246b546762 add support for 802.11 packet injection via bpf
Together with:	Andrea Bittau <a.bittau@cs.ucl.ac.uk>
Reviewed by:	arch@
MFC after:	1 month
2006-07-26 03:15:16 +00:00
Sam Leffler
0912bac9b3 update erp information element in the beacon frame to reflect
changes in the bss

Reviewed by:	avatar
Obtained from:	atheros
MFC after:	2 weeks
2006-01-02 16:57:20 +00:00
Sam Leffler
e701e041f2 Add ieee80211_beacon_miss for processing sta mode beacon miss events
in the 802.11 layer: we send a directed probe request frame to the
current ap bmiss_max times (w/o answer) before scanning for a new ap.

MFC after:	2 weeks
2005-12-12 18:04:44 +00:00
Sam Leffler
188757f54c 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
2005-08-13 17:31:48 +00:00
Sam Leffler
b5c9941514 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
2005-08-10 16:22:30 +00:00
Sam Leffler
af8418dcb1 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 21:11:26 +00:00
Sam Leffler
f62121ce8e simplifiy ieee80211_send_nulldata api
MFC after:	3 days
2005-07-22 17:31:18 +00:00
Sam Leffler
7d77cd5381 simplify rate set api's by removing ic parameter (implicit in node reference)
MFC after:	3 days
2005-07-22 17:29:03 +00:00
Sam Leffler
0942c81c7a remove extern from function decls 2005-04-04 04:27:20 +00:00
Sam Leffler
1f29887956 change ieee80211_input to return the frame type or -1 2005-04-04 02:32:56 +00:00
Sam Leffler
5a11fbca83 add macros to convert between txop's and usecs 2005-01-24 20:38:26 +00:00
Sam Leffler
1f1d781074 bump copyright for 2005 2004-12-31 22:42:38 +00:00
Sam Leffler
a95fa8d386 s/inline/__inline/ 2004-12-31 21:30:42 +00:00
Sam Leffler
8da7b74f9c expose ieee80211_phymode_name for use in debug msgs 2004-12-31 20:38:48 +00:00
Sam Leffler
8a1b9b6ad4 Update 802.11 support; too much new functionality to fully describe
here but it includes completed 802.11g, WPA, 802.11i, 802.1x, WME/WMM,
AP-side power-save, crypto plugin framework, authenticator plugin framework,
and access control plugin frameowrk.
2004-12-08 17:26:47 +00:00
Sam Leffler
0a915fad5d MFp4 changes to fix locking issues and correct reference
count handling of station entries in hostap mode:

Input path:

o driver is now expected to find the node associated with the
  sender of a received frame; use ic_bss if none is located
o driver passes the (referenced) node into ieee80211_input for
  use within the wlan module and is responsible for cleaning up
  on return
o the antenna state is no longer passed up with each frame; this
  is now considered driver-private state and drivers are responsible
  for keeping it in the driver-private part of a node

Output path:

Revamp output path for management frames to eliminate redundant
locking that causes problems and to correct reference counting
bogosity that occurs when stations are timed out due to inactivity
(in AP mode).  On output the refcnt'd node is stashed in the pkthdr's
recvif field (yech) and retrieved by the driver.  This eliminates
an unref/ref scenario and related node table unlock/lock due to the
driver looking up the node.  This is particularly important when
stations are timed out as this causes a lock order reversal that
can result in a deadlock.  As a byproduct we also reduce the overhead
for sending management frames (minimal).  Additional fallout from
this is a change to ieee80211_encap to return a refcn't node for
tieing to the outbound frame.  Node refcnts are not reclaimed until
after a frame is completely processed (e.g. in the tx interrupt
handler).  This is especially important for timed out stations as
this deref will be the final one causing the node entry to be
reclaimed.

Additional semi-related changes:
o replace m_copym use with m_copypacket (optimization)
o add assert to verify ic_bss is never free'd during normal operation
o add comments explaining calling conventions by drivers for frames
  going in each direction
o remove extraneous code that "cannot be executed" (e.g. because
  pointers may never be null)
2003-08-19 22:17:04 +00:00
Sam Leffler
a11c9a5cc2 o change ieee80211_new_state handling to use a proper method that drivers
override in their sub-class; this eliminates the hack of interpreting the
  EINPROGRESS return value to mean "don't do any of the normal work"
o correct active scanning so the first channel is only scanned once and so
  per-channel passive mode is properly honored
o expose 802.11 FSM state names so every driver doesn't keep a private copy
o eliminate node parameter to ieee80211_begin_scan; it was not being used
2003-07-20 21:36:08 +00:00
Sam Leffler
7535e66acd revise copyright notices per discussion with Atsushi Onoe <onoe@sm.sony.co.jp> 2003-06-27 05:13:52 +00:00
Sam Leffler
1a1e1d2157 new 802.11 layer:
o code reorg (relative to old netbsd-derived code) for future growth
o drivers now specify available channels and rates and 802.11 layer handles
  almost all ifmedia actions
o multi-mode support for 11a/b/g devices
o 11g protocol additions (incomplete)
o new element id additions (for other than 11g)
o node/station table redone for proper locking and to eliminate driver
  incestuousness
o split device flags and capabilities to reduce confusion and provide room
  for expansion
o incomplete power management infrastructure (need to revisit)
o incomplete hooks for software retry
o more...
2003-06-23 16:55:01 +00:00