- Merge from HEAD

o update dwds mcast handling after hoisting ieee80211_encap: frames need
to be encapsulated before dispatching to the driver
o eliminate M_WDS now that we call ieee80211_encap directly and can supp

o update dwds mcast handling after hoisting ieee80211_encap: frames need
to be encapsulated before dispatching to the driver
o eliminate M_WDS now that we call ieee80211_encap directly and can supply
the wds vap to indicate a 4-address frame should be created

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hide linker set stuff from user space

add linker sets for get/set ioctl handlers so optional net80211
code is isolated

Update the projects tree to a newer FreeBSD current.

Add memmove() to the kernel, making the kernel compile with Clang.

When copying big structures, LLVM generates calls to memmove(), because
it may not be able to figure out whether structures overlap

Add memmove() to the kernel, making the kernel compile with Clang.

When copying big structures, LLVM generates calls to memmove(), because
it may not be able to figure out whether structures overlap. This caused
linker errors to occur. memmove() is now implemented using bcopy().
Ideally it would be the other way around, but that can be solved in the
future. On ARM we don't do add anything, because it already has
memmove().

Discussed on: arch@
Reviewed by: rdivacky

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strip M_FRAG & co mbufs coming down from ip_output, these flags are
re-used within net80211 to mark 802.11 frags so allowing them to
leak through to the driver caused packets to be dropped in ath

New ap-side power save implementation; the main change is to allow drivers
to queue frames previously encapsulated on a separate high priority list
that is dispatched before the unencapsulated frames

New ap-side power save implementation; the main change is to allow drivers
to queue frames previously encapsulated on a separate high priority list
that is dispatched before the unencapsulated frames (to preserve order).

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introduce M_ENCAP flag to mark packets encapsulated w/ an 802.11 header

o change ieee80211_mgmt_output to take a raw xmit parameters block so
the net80211 layer has complete control over the handling of mgt frames
(in particular, the ac, tx rate, and retry count); th

o change ieee80211_mgmt_output to take a raw xmit parameters block so
the net80211 layer has complete control over the handling of mgt frames
(in particular, the ac, tx rate, and retry count); this also allows us
to purge the M_LINK0 flag that was attached to mbufs to mark them as
needing encryption for shared key auth
o change ieee80211_send_setup to take a tid parameter so it can be used
to setup QoS frames

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Cleanup AMPDU handling:

For receive:
o explicitly tag rx frames w/ M_AMPDU instead of passing frames through
the reorder processing according to the node having HT and the frame
being QoS data
o

Cleanup AMPDU handling:

For receive:
o explicitly tag rx frames w/ M_AMPDU instead of passing frames through
the reorder processing according to the node having HT and the frame
being QoS data
o relax ieee80211_ampdu_reorder asserts to allow any frame to be passed
in, unsuitable frames are returned to the caller for normal processing;
this permits drivers that cannot inspect the PLCP to mark all data
frames as potential ampdu candidates with only a small penalty
o add M_AMPDU_MPDU to identify frames resubmitted from the reorder q

For transmit:
o tag aggregation candidates with M_AMPDU_MPDU
o fix the QoS ack policy set in ampdu subframes; we only support immediate
BA streams which should be marked for "normal ack" to get implicit block
ack behaviour; interestingly certain vendor parts BA'd frames with the
11e BA ack policy set
o do not assign a sequence # to aggregation candidates; this must be done
when frames are submitted for transmit (NB: this can/will be handled
better when aggregation is pulled up to net80211)

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moreve the aggregation q; it's not being used and
there's a better way to do this

fix age calculations (yet again); entries in the q have values
relative to the head

MFC after: 3 days

Revise lock name handling:
o construct a name for the com lock as done for other locks
o pass the device name to IEEE80211_LOCK_INIT so the mtx name
is constructed as foo_com_lock
o introduce *_LOC

Revise lock name handling:
o construct a name for the com lock as done for other locks
o pass the device name to IEEE80211_LOCK_INIT so the mtx name
is constructed as foo_com_lock
o introduce *_LOCK_OBJ macro's to hide the lock contents and
minimize redundant code

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Multi-bss (aka vap) support for 802.11 devices.

Note this includes changes to all drivers and moves some device firmware
loading to use firmware(9) and a separate module (e.g. ral). Also there
no l

Multi-bss (aka vap) support for 802.11 devices.

Note this includes changes to all drivers and moves some device firmware
loading to use firmware(9) and a separate module (e.g. ral). Also there
no longer are separate wlan_scan* modules; this functionality is now
bundled into the wlan module.

Supported by: Hobnob and Marvell
Reviewed by: many
Obtained from: Atheros (some bits)

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sync 11n support with vap code base; many changes based on interop
testing with all major vendors

MFC after: 1 week

o add M_WEP mbuf flag so drivers can mark frames that are decrypted by the
device and have had the crypto bits stripped from the 802.11 header
o strip mbuf flags in the rx path before passing up th

o add M_WEP mbuf flag so drivers can mark frames that are decrypted by the
device and have had the crypto bits stripped from the 802.11 header
o strip mbuf flags in the rx path before passing up the stack

Reviewed by: thompsa, sephe, avatar
Approved by: re (blanket wireless)

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Correct msecs_to_ticks macro. This fixes problems when hz is not the
default 1000 setting.

Reviewed by: thompsa, rpaulo
Approved by: re (bmah)

Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible

Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing

Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested

This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.

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copyright updates:
o update to include 2007
o switch back to a 2-clause bsd-only license

Reviewed by: onoe

When dispatching frames saved on the power save queue to a
station exiting power save mode prepend them to the driver's
send q instead of appending them. This insures the packets
are not misordered

When dispatching frames saved on the power save queue to a
station exiting power save mode prepend them to the driver's
send q instead of appending them. This insures the packets
are not misordered wrt any packets already q'd for the station.

This corrects a problem noticed when using a VoIP phone talking
to an ath card in ap mode; the misordered packets caused noise.

Submitted by: "J.R. Oldroyd" <jr@opal.com>
MFC after: 2 weeks

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reduce user-visible namespace to just what is needed

MFC after: 2 weeks

bandaid to unbreak build (user code includes this file)

Fix potential node refcnt leak. If mbufs are q'd on ic_mgtq when
the state machine clocks to INIT, node references are not reclaimed.
Add a new routine ieee80211_drain_ifq that does this and use it

Fix potential node refcnt leak. If mbufs are q'd on ic_mgtq when
the state machine clocks to INIT, node references are not reclaimed.
Add a new routine ieee80211_drain_ifq that does this and use it
instead of IF_DRAIN.

Submitted by: Sepherosa Ziehau
Obtained from: DragonFly
MFC after: 1 month

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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