Commit Graph

120 Commits

Author SHA1 Message Date
Pawel Biernacki
7029da5c36 Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)
r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.

This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Mark all obvious cases as MPSAFE.  All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT

Approved by:	kib (mentor, blanket)
Commented by:	kib, gallatin, melifaro
Differential Revision:	https://reviews.freebsd.org/D23718
2020-02-26 14:26:36 +00:00
Hans Petter Selasky
b65f813c1a Widen EPOCH(9) usage in PCI WLAN drivers.
Make sure all occurrences of ieee80211_input_xxx() in sys/dev are
covered by a network epoch section. Do not depend on the interrupt
handler nor any taskqueues being in a network epoch section.

This patch should unbreak the PCI WLAN drivers after r357004.

Pointy hat:	glebius@
Sponsored by:	Mellanox Technologies
2020-01-30 10:28:01 +00:00
Andriy Voskoboinyk
8942762122 urtw(4), otus(4), iwi(4): allow to set non-default MAC address via ifconfig(8)
Tested with Netgear WG111 v3 (RTL8187B, urtw(4)), STA mode.

MFC after:	1 week
2019-04-10 08:17:56 +00:00
Andriy Voskoboinyk
786ac7035f Fix ieee80211_radiotap(9) usage in wireless drivers:
- Alignment issues:
 * Add missing __packed attributes + padding across all drivers; in
most places there was an assumption that padding will be always
minimally suitable; in few places - e.g., in urtw(4) / rtwn(4) -
padding was just missing.
 * Add __aligned(8) attribute for all Rx radiotap headers since they can
contain 64-bit TSF timestamp; it cannot appear in Tx radiotap headers, so
just drop the attribute here. Refresh ieee80211_radiotap(9) man page
accordingly.

- Since net80211 automatically updates channel frequency / flags in
ieee80211_radiotap_chan_change() drop duplicate setup for these fields
in drivers.

Tested with Netgear WG111 v3 (urtw(4)), STA mode.

MFC after:	2 weeks
2019-03-11 01:27:01 +00:00
Andriy Voskoboinyk
b84b36380e Remove 2GHz channel list copies from wireless drivers.
Wrap ieee80211_add_channel_list_2ghz into another function
which supplies default (1-14) channel list to it and drop
its copies from drivers.

Checked with RTL8188EE, country US / JP / KR / UA.

MFC after:	2 weeks
2019-01-26 17:00:55 +00:00
Andriy Voskoboinyk
12df38ad62 iwi(4): do not leak node reference when IWI_FLAG_ASSOCIATED flag is set.
MFC after:	6 days
2018-12-18 05:08:56 +00:00
Brooks Davis
541d96aaaf Use an accessor function to access ifr_data.
This fixes 32-bit compat (no ioctl command defintions are required
as struct ifreq is the same size).  This is believed to be sufficent to
fully support ifconfig on 32-bit systems.

Reviewed by:	kib
Obtained from:	CheriBSD
MFC after:	1 week
Relnotes:	yes
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D14900
2018-03-30 18:50:13 +00:00
Konstantin Belousov
23fda0ad66 Remove unused variable.
Sponsored by:	The FreeBSD Foundation
2018-03-08 22:04:54 +00:00
Andriy Voskoboinyk
222a2f1de9 iwi(4): factor out rateset setup into iwi_set_rateset().
No functional change intended.
2018-03-08 18:42:23 +00:00
Pedro F. Giffuni
ac2fffa4b7 Revert r327828, r327949, r327953, r328016-r328026, r328041:
Uses of mallocarray(9).

The use of mallocarray(9) has rocketed the required swap to build FreeBSD.
This is likely caused by the allocation size attributes which put extra pressure
on the compiler.

Given that most of these checks are superfluous we have to choose better
where to use mallocarray(9). We still have more uses of mallocarray(9) but
hopefully this is enough to bring swap usage to a reasonable level.

Reported by:	wosch
PR:		225197
2018-01-21 15:42:36 +00:00
Pedro F. Giffuni
26c1d774b5 dev: make some use of mallocarray(9).
Focus on code where we are doing multiplications within malloc(9). None of
these is likely to overflow, however the change is still useful as some
static checkers can benefit from the allocation attributes we use for
mallocarray.

This initial sweep only covers malloc(9) calls with M_NOWAIT. No good
reason but I started doing the changes before r327796 and at that time it
was convenient to make sure the sorrounding code could handle NULL values.
2018-01-13 22:30:30 +00:00
Adrian Chadd
9fbe631a1a [net80211] convert all of the WME use over to a temporary copy of WME info.
This removes the direct WME info access in the ieee80211com struct and instead
provides a method of fetching the data.  Right now it's a no-op but eventually
it'll turn into a per-VAP method for drivers that support it (eg iwn, iwm,
upcoming ath10k work) as things like p2p support require this kind of behaviour.

Tested:

* ath(4), STA and AP mode

TODO:

* yes, this is slightly stack size-y, but it is an important first step
  to get drivers migrated over to a sensible WME API.  A lot of per-phy things
  need to be converted to per-VAP before P2P, 11ac firmware, etc stuff shows up.
2018-01-02 00:07:28 +00:00
Pedro F. Giffuni
718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00
Ian Lepore
a14af83085 Fix drivers that assume ticks starts at zero. These drivers all have logic
similar to "if (ticks > localvar+interval) {localvar=ticks; ...}" where
localvar is initialized to zero.  Ticks is initialized to a negative value
since r278230, and that leads to these if statements never being true.
2017-07-06 17:03:22 +00:00
Andriy Voskoboinyk
ce017db11c iwi, ral, zyd: fix possible use-after-free.
MFC after:	5 days
2017-02-17 23:20:22 +00:00
Andriy Voskoboinyk
5dbc2ac93d iwi: add 12-14 2GHz channels into channel list.
Return full channel list via iwi_getradiocaps() method
(ieee80211_init_channels() was replaced with iwi_getradiocaps()
to be consistent with other drivers).

PR:				216923
Submitted and tested by:	ds@ukrhub.net (original patch)
MFC after:			5 days
2017-02-13 02:15:56 +00:00
Pedro F. Giffuni
453130d9bf sys/dev: minor spelling fixes.
Most affect comments, very few have user-visible effects.
2016-05-03 03:41:25 +00:00
Andriy Voskoboinyk
a061fea6ee net80211 + drivers: hide size of 'bands' array behind a macro.
Auto-replace 'howmany(IEEE80211_MODE_MAX, 8)' with 'IEEE80211_MODE_BYTES'.
No functional changes.
2016-04-29 22:14:11 +00:00
Andriy Voskoboinyk
0046e1868f net80211 drivers: fix ieee80211_init_channels() usage
Fix out-of-bounds read (all) / write (11n capable) for drivers
that are using ieee80211_init_channels() to initialize channel list.

Tested with:
 * RTL8188EU, STA mode.
 * RTL8188CUS, STA mode.
 * WUSB54GC, HOSTAP mode.

Approved by:	adrian (mentor)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D4818
2016-01-07 18:41:03 +00:00
Andriy Voskoboinyk
a14954c5d6 net80211: WME callback cleanup in various drivers
Since r288350, ic_wme_task() is called via ieee80211_runtask(),
so, any additional deferring from the driver side is not needed.

Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D4072
2015-11-05 17:58:18 +00:00
Adrian Chadd
d6166def28 net80211 & wireless drivers: remove duplicate defines (noop)
* IEEE80211_DIR_DSTODS(wh) -> IEEE80211_IS_DSTODS(wh).
* N(a) -> nitems(a).
* Remove LE_READ_2(p)/LE_READ_4(p) definitions (and include ieee80211_input.h instead).
* <drvname>_TXOP_TO_US(txop) -> IEEE80211_TXOP_TO_US(txop).
* Put IEEE80211_RV(v) into ieee80211_proto.h and remove local RV(v) definitions.

Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
Differential Revision:	https://reviews.freebsd.org/D3705
2015-09-22 02:44:59 +00:00
Gleb Smirnoff
7a79cebfba Replay r286410. Change KPI of how device drivers that provide wireless
connectivity interact with the net80211 stack.

Historical background: originally wireless devices created an interface,
just like Ethernet devices do. Name of an interface matched the name of
the driver that created. Later, wlan(4) layer was introduced, and the
wlanX interfaces become the actual interface, leaving original ones as
"a parent interface" of wlanX. Kernelwise, the KPI between net80211 layer
and a driver became a mix of methods that pass a pointer to struct ifnet
as identifier and methods that pass pointer to struct ieee80211com. From
user point of view, the parent interface just hangs on in the ifconfig
list, and user can't do anything useful with it.

Now, the struct ifnet goes away. The struct ieee80211com is the only
KPI between a device driver and net80211. Details:

- The struct ieee80211com is embedded into drivers softc.
- Packets are sent via new ic_transmit method, which is very much like
  the previous if_transmit.
- Bringing parent up/down is done via new ic_parent method, which notifies
  driver about any changes: number of wlan(4) interfaces, number of them
  in promisc or allmulti state.
- Device specific ioctls (if any) are received on new ic_ioctl method.
- Packets/errors accounting are done by the stack. In certain cases, when
  driver experiences errors and can not attribute them to any specific
  interface, driver updates ic_oerrors or ic_ierrors counters.

Details on interface configuration with new world order:
- A sequence of commands needed to bring up wireless DOESN"T change.
- /etc/rc.conf parameters DON'T change.
- List of devices that can be used to create wlan(4) interfaces is
  now provided by net.wlan.devices sysctl.

Most drivers in this change were converted by me, except of wpi(4),
that was done by Andriy Voskoboinyk. Big thanks to Kevin Lo for testing
changes to at least 8 drivers. Thanks to pluknet@, Oliver Hartmann,
Olivier Cochard, gjb@, mmoll@, op@ and lev@, who also participated in
testing.

Reviewed by:	adrian
Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2015-08-27 08:56:39 +00:00
Adrian Chadd
ba2c1fbc03 Revert the wifi ifnet changes until things are more baked and tested.
* 286410
* 286413
* 286416

The initial commit broke a variety of debug and features that aren't
in the GENERIC kernels but are enabled in other platforms.
2015-08-08 01:10:17 +00:00
Gleb Smirnoff
79d2c5e857 Change KPI of how device drivers that provide wireless connectivity interact
with the net80211 stack.

Historical background: originally wireless devices created an interface,
just like Ethernet devices do. Name of an interface matched the name of
the driver that created. Later, wlan(4) layer was introduced, and the
wlanX interfaces become the actual interface, leaving original ones as
"a parent interface" of wlanX. Kernelwise, the KPI between net80211 layer
and a driver became a mix of methods that pass a pointer to struct ifnet
as identifier and methods that pass pointer to struct ieee80211com. From
user point of view, the parent interface just hangs on in the ifconfig
list, and user can't do anything useful with it.

Now, the struct ifnet goes away. The struct ieee80211com is the only
KPI between a device driver and net80211. Details:

- The struct ieee80211com is embedded into drivers softc.
- Packets are sent via new ic_transmit method, which is very much like
  the previous if_transmit.
- Bringing parent up/down is done via new ic_parent method, which notifies
  driver about any changes: number of wlan(4) interfaces, number of them
  in promisc or allmulti state.
- Device specific ioctls (if any) are received on new ic_ioctl method.
- Packets/errors accounting are done by the stack. In certain cases, when
  driver experiences errors and can not attribute them to any specific
  interface, driver updates ic_oerrors or ic_ierrors counters.

Details on interface configuration with new world order:
- A sequence of commands needed to bring up wireless DOESN"T change.
- /etc/rc.conf parameters DON'T change.
- List of devices that can be used to create wlan(4) interfaces is
  now provided by net.wlan.devices sysctl.

Most drivers in this change were converted by me, except of wpi(4),
that was done by Andriy Voskoboinyk. Big thanks to Kevin Lo for testing
changes to at least 8 drivers. Thanks to Olivier Cochard, gjb@, mmoll@,
op@ and lev@, who also participated in testing. Details here:

https://wiki.freebsd.org/projects/ifnet/net80211

Still, drivers: ndis, wtap, mwl, ipw, bwn, wi, upgt, uath were not
tested. Changes to mwl, ipw, bwn, wi, upgt are trivial and chances
of problems are low. The wtap wasn't compilable even before this change.
But the ndis driver is complex, and it is likely to be broken with this
commit. Help with testing and debugging it is appreciated.

Differential Revision:	D2655, D2740
Sponsored by:	Nginx, Inc.
Sponsored by:	Netflix
2015-08-07 11:43:14 +00:00
Gleb Smirnoff
6468c41303 Make the last revision compilable.
Remove extra argument from iwi_wme_setparams(), a softc has 1 to 1
accordance with ieee80211com.
2015-06-02 22:45:28 +00:00
Gleb Smirnoff
405c7166ef The argument passed to the iwi_update_wme() is softc, not ieee80211com.
This fatal mismatch appeared to be absolutely harmless, since both structs
have pointer to struct ifnet as their first member, and they both point to
the same ifnet.  And the first member is the only one used from the argument.
2015-06-02 22:39:16 +00:00
Gleb Smirnoff
59686fe935 Set ic_softc in all 802.11 drivers. Not required right now, but will be
used quite soon.

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2015-05-25 18:50:26 +00:00
Gleb Smirnoff
c8550c0278 Make net80211 drivers supply their device name to the net80211 layer, so
that the latter doesn't need to go through struct ifnet to get their name.

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2015-05-25 13:51:13 +00:00
Gleb Smirnoff
c8dfaf382f Mechanically convert to if_inc_counter(). 2014-09-19 03:51:26 +00:00
Eitan Adler
1c90e87fdc Fix sizeof modifier for sizeof() in printf 2014-03-30 00:25:31 +00:00
Adrian Chadd
4982d693ac Add support to export the contents of the notification updates from the firmware.
Right now the NIC isn't actually exporting useful data. I'm not quite sure
why this is. :(
2014-03-29 19:53:04 +00:00
Kevin Lo
5945b5f5ab Rename definition of IEEE80211_FC1_WEP to IEEE80211_FC1_PROTECTED.
The origin of WEP comes from IEEE Std 802.11-1997 where it defines
whether the frame body of MAC frame has been encrypted using WEP
algorithm or not.
IEEE Std. 802.11-2007 changes WEP to Protected Frame, indicates
whether the frame is protected by a cryptographic encapsulation
algorithm.

Reviewed by:	adrian, rpaulo
2014-01-08 08:06:56 +00:00
Marius Strobl
0a9d883977 - Probe with BUS_PROBE_DEFAULT instead of 0.
- Nuke code setting PCI_POWERSTATE_D0; pci(4) already does that for type 0
  devices.
- Use PCIR_BAR instead of a homegrown macro.
- There's no need to keep track of resource IDs.
- Quiesce the interrupt before actually detaching.
- Use DEVMETHOD_END.
- Use NULL instead of 0 for pointers.

MFC after:	1 week
2013-12-29 23:05:01 +00:00
Adrian Chadd
39bb444c76 The bssid can change from underneath us, so take a reference before
we fiddle with it.
2013-11-26 01:30:10 +00:00
Gleb Smirnoff
76039bc84f The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare
to this event, adding if_var.h to files that do need it. Also, include
all includes that now are included due to implicit pollution via if_var.h

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2013-10-26 17:58:36 +00:00
Gleb Smirnoff
c6499eccad Mechanically substitute flags from historic mbuf allocator with
malloc(9) flags in sys/dev.
2012-12-04 09:32:43 +00:00
Bernhard Schmidt
ada977b103 Use suspend/resume methods provided by net80211. This ensures that the
appropriate state handling takes place, not doing so results in the
device doing nothing until manual intervention.

Reviewed by:	iwasaki
Tested by:	iwasaki (iwi)
MFC after:	4 weeks
2012-03-23 19:32:30 +00:00
Mitsuru IWASAKI
7199b6f7ee Fix wrong asresp frame parsing in iwi_checkforqos().
After 8.0-RELEASE, iwi(4) doesn't send any data frames in infrastructure
mode.

Bacause of the condition `while (frm < efrm)', IEEE80211_VERIFY_LENGTH()
was checking item length beyond the ieee80211_frame region, and returned
from iwi_checkforqos() without setting flags, capinfo and associd.

In infrastructure mode associd is required, so this problem causes
discarding mbuf in ieee80211_start().

PR:	kern/165819
Tested/Reviewed/Supported by: bschmidt and adrian
MFC after:	1 week
2012-03-10 17:08:57 +00:00
Bernhard Schmidt
fcd9500f91 Fix some net80211 enum nits:
- ic_vap_create() uses an ieee80211_opmode argument
- ieee80211_rate2media() takes an ieee80211_phymode argument
- ieee80211_plcp2rate() takes an ieee80211_phytype argument
- cast to enum ieee80211_protmode and ieee80211_roamingmode to silence
  compiler warnings

Submitted by:	arundel@
2011-12-17 10:23:17 +00:00
Bernhard Schmidt
129145a426 Add module version to iwi/ipw/wpi and iwn.
The version is used to check if a module is already preset, not setting
it results in:

can't re-use a leaf (ipw)!
module_register: module pci/ipw already exists!
Module pci/ipw failed to register: 17

while trying to load the module due to an entry in loader.conf. With this
commit we get the expected:

module ipw already present!

Reported by:	Dru Lavigne, bz
Tested by:	bz
MFC after:	1 week
2011-05-31 19:08:25 +00:00
Matthew D Fleming
6dc7dc9a3e sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.
Commit the rest of the devices.
2011-01-12 19:53:56 +00:00
Bernhard Schmidt
82510b7eca The firmware does pad notifications to an even number of bytes (at least
the association notification), the included information though always
contains an elem block with an odd number of bytes. We handle the last
byte as if it might contain a whole elem block, this of course is not
true as one byte is not enough to hold a block, we therefore discard the
complete frame. The solution here is to subtract one from the actual
notification length, this is also what the Linux driver does. With this
change the frames ends exactly where the last elem block ends.

This commit also reverts r214160 which is no longer required and now even
wrong.

MFC after:	1 week
2010-10-23 11:26:22 +00:00
Bernhard Schmidt
9f95314538 The firmware always sets bit 14 and 15, to get the real associd we need
to clear those bits.

MFC after:	1 week
2010-10-21 19:30:55 +00:00
Bernhard Schmidt
f3c95fe748 Instead of calling return when reaching the end of the assoc notification
break the loop instead. We want to run the code after the while loop
to set an associd and capinfo. If we don't do this net80211 will drop
frames because it assumes the node has not yet been associated.

MFC after:	1 week
2010-10-21 19:28:52 +00:00
Bernhard Schmidt
40668dc52b Fix monitor mode which is implemented by doing a firmware scan. This
is a port of stable/6, seems like the code got lost during the
background scan changes in r170530.

Pointed out by:	danfe
MFC after:	2 weeks
2010-10-12 16:52:13 +00:00
Maxim Sobolev
e50d35e6c6 Add new tunable 'net.link.ifqmaxlen' to set default send interface
queue length. The default value for this parameter is 50, which is
quite low for many of today's uses and the only way to modify this
parameter right now is to edit if_var.h file. Also add read-only
sysctl with the same name, so that it's possible to retrieve the
current value.

MFC after:	1 month
2010-05-03 07:32:50 +00:00
Rui Paulo
820e6a1f38 For ic_opmode switch cases, provide a default label with a printf saying
this opmode is not supported.

Approved by:	re (kib)
2009-07-10 15:28:33 +00:00
Sam Leffler
07f8bbea05 rssi/nf data are now dbm, tag them accordingly 2009-05-21 15:30:59 +00:00
Sam Leffler
fedda42340 o remove bpf tap call missed in r192468
o correct rssi taken from rx descriptor; need dbm
2009-05-21 15:30:29 +00:00
Sam Leffler
5463c4a485 Overhaul monitor mode handling:
o replace DLT_IEEE802_11 support in net80211 with DLT_IEEE802_11_RADIO
  and remove explicit bpf support from wireless drivers; drivers now
  use ieee80211_radiotap_attach to setup shared data structures that
  hold the radiotap header for each packet tx/rx
o remove rx timestamp from the rx path; it was used only by the tdma support
  for debugging and was mostly useless due to it being 32-bits and mostly
  unavailable
o track DLT_IEEE80211_RADIO bpf attachments and maintain per-vap and
  per-com state when there are active taps
o track the number of monitor mode vaps
o use bpf tap and monitor mode vap state to decide when to collect radiotap
  state and dispatch frames; drivers no longer explicitly directly check
  bpf state or use bpf calls to tap frames
o handle radiotap state updates on channel change in net80211; drivers
  should not do this (unless they bypass net80211 which is almost always
  a mistake)
o update various drivers to be more consistent/correct in handling radiotap
o update ral to include TSF in radiotap'd frames
o add promisc mode callback to wi

Reviewed by:	cbzimmer, rpaulo, thompsa
2009-05-20 20:00:40 +00:00