* Re: Massive packet loss with ath9k, AR9280, hostapd in 802.11n mode
From: Bob Copeland @ 2009-09-25 20:52 UTC (permalink / raw)
To: Rene Mayrhofer; +Cc: linux-wireless
In-Reply-To: <200909252054.19762.rene.mayrhofer@gibraltar.at>
On Fri, Sep 25, 2009 at 2:54 PM, Rene Mayrhofer
<rene.mayrhofer@gibraltar.at> wrote:
I'll take a stab at this one, someone else can try the other ath9k-related
questions.
> 4. How do I tell CRDA to load frequency definitions for my location (AT)
> instead of the default (US)? I might be blind, stupid, or both, but using the
> slightly conflicting documentation available on various Wikis, I was unable to
> change this. I have read that some chipsets are hard-wired for one location
> and can't be changed, but couldn't find out if mine is (it was bought in
> Europe, so shouldn't be locked to US in any case). An RTFM (with an up-to-date
> pointer, preferrably for Debian/Ubuntu) in this matter would be highly
> appreciated.
"iw reg set XX", but read this first:
http://wireless.kernel.org/en/users/Drivers/ath
http://wireless.kernel.org/en/developers/Regulatory
In short, it depends on what's in your EEPROM.
--
Bob Copeland %% www.bobcopeland.com
^ permalink raw reply
* Re: Porting AR6K to use cfg80211
From: Matthew Ryan @ 2009-09-25 20:25 UTC (permalink / raw)
To: linux-wireless
In-Reply-To: <200909252005.23746.mb@bu3sch.de>
Michael Buesch <mb@...> writes:
>
> On Friday 25 September 2009 19:40:52 Matthew Ryan wrote:
> > I was curious if I could get a few expert opinions on if its possible to port
> > this driver to use mac80211, and how difficult/ what pitfalls there may be.
>
> The device is fullmac, so it does not require mac80211.
> I guess however, ar6k can be ported to use cfg80211.
>
Do you know of any examples in the source tree which are fullmac, but utilize
cfg80211 that I could use as a base to get started?
Thanks,
Matt
^ permalink raw reply
* Re: ar9170 makes machine hang when shut down
From: Joerg Albert @ 2009-09-25 20:16 UTC (permalink / raw)
To: Malte Gell; +Cc: linux-wireless
In-Reply-To: <200909251132.18546.malte.gell@gmx.de>
On 09/25/2009 11:32 AM, Malte Gell wrote:
> My system loads ar9170:
>
> lsmod | grep ar91*
>
> ar9170 32632 0
> mac80211 237208 1 ar9170
> led_class 4028 1 ar9170
> usbcore 183280 15
> usbserial,ar9170,usbhid,uvcvideo,snd_usb_audio,snd_usb_lib,usblp,ehci_hcd,uhci_hcd,ohci_hcd,usb_storage
You are right. I had a look into the source rpm for the packets your url pointed to. The ar9170 driver inside
compat-wireless dates back to end of February 2009, at that time the driver was called ar9170, it got the "usb" prefix later.
You might try arusb_lnx (the vendor driver) from the other package (no idea how OpenSuSE handles two drivers
for the same hardware), but the best way to get support from this list would be to compile a decent
compat-wireless by your own and report bugs etc. to the list. A lot of stuff changed since February.
Regards,
Jörg.
^ permalink raw reply
* Re: Problems with WPA in mainline 2.6.31-gitX
From: Larry Finger @ 2009-09-25 19:38 UTC (permalink / raw)
To: Christian Lamparter; +Cc: Johannes Berg, John Linville, wireless
In-Reply-To: <200909252042.37881.chunkeey@googlemail.com>
Christian Lamparter wrote:
>
> it made it into 2.6.31-git16:
> "cfg80211: don't overwrite privacy setting"
> 94f85853324e02c3a32bc3101f090dc9a3f512b4
>
> but, "[PATCH] cfg80211: don't set privacy w/o key"
> is still missing.
Thanks, Christian. It turns out I do not need "don't set privacy".
With the latest pull, my system works fine.
Larry
^ permalink raw reply
* Re: [PATCH 2/2] at76c50x-usb: set firmware and hardware version in wiphy
From: Luis R. Rodriguez @ 2009-09-25 19:27 UTC (permalink / raw)
To: Kalle Valo; +Cc: linux-wireless
In-Reply-To: <da94abde0909251211x347bbd30xdfe2bd05bc1e07e5@mail.gmail.com>
On Fri, Sep 25, 2009 at 12:11 PM, Kalle Valo <kalle.valo@iki.fi> wrote:
> On Thu, Sep 24, 2009 at 1:11 PM, Luis R. Rodriguez <mcgrof@gmail.com> wrote:
>> On Thu, Sep 24, 2009 at 12:10 PM, Kalle Valo <kalle.valo@iki.fi> wrote:
>>
>>> BTW, is there an easy way to get the module name for the interface?
>>> That's also helpful information for the user.
>>
>> If you can map the interface to PCI ID then I think its possible,
>> lspci -k seems to do it.
>
> Not all drivers use PCI, we have USB, SDIO, SPI and so on.
Sure, it was just an example of a transport where this does exist, I
am hoping this doesn't use PCI specific stuff and based on a simple
strace of "strace -o foo lspci -k -s 03:00.0" I see it actually ends
up reading a /lib/modules/ file and am hoping this is what it uses to
do the mapping. But you still first need the bus ID for the netdevice,
not sure how to best to do that. I do see the sysfs ieee80211 class
maps the phy%d to the bus:
mcgrof@tux ~ $ ls -ld /sys/class/ieee80211/phy0/device
lrwxrwxrwx 1 root root 0 2009-09-25 12:25
/sys/class/ieee80211/phy0/device -> ../../../0000:03:00.0
If you can extract the bus from here and then the device:vendor id I
think you can read the /lib/modules/ map file for the driver.
Check these files out:
ls /lib/modules/2.6.31-wl/modules.*map
Luis
^ permalink raw reply
* Re: [PATCH 2/2] at76c50x-usb: set firmware and hardware version in wiphy
From: Kalle Valo @ 2009-09-25 19:11 UTC (permalink / raw)
To: Luis R. Rodriguez; +Cc: linux-wireless, Felix Bitterli
In-Reply-To: <43e72e890909241311j552ee33ata80ba24c386a316b@mail.gmail.com>
On Thu, Sep 24, 2009 at 1:11 PM, Luis R. Rodriguez <mcgrof@gmail.com> wrote:
> On Thu, Sep 24, 2009 at 12:10 PM, Kalle Valo <kalle.valo@iki.fi> wrote:
>
>> BTW, is there an easy way to get the module name for the interface?
>> That's also helpful information for the user.
>
> If you can map the interface to PCI ID then I think its possible,
> lspci -k seems to do it.
Not all drivers use PCI, we have USB, SDIO, SPI and so on.
> It would be a nice addition to iw output as well IMHO.
I agree. I'm not going to work on adding the driver name right now,
but maybe in the future.
Kalle
^ permalink raw reply
* Re: [PATCH 2/2] at76c50x-usb: set firmware and hardware version in wiphy
From: Kalle Valo @ 2009-09-25 19:06 UTC (permalink / raw)
To: Joerg Albert; +Cc: linux-wireless
In-Reply-To: <4ABBE0E6.4090408@gmx.de>
On Thu, Sep 24, 2009 at 2:13 PM, Joerg Albert <jal2@gmx.de> wrote:
> On 09/24/2009 08:02 PM, Kalle Valo wrote:
>
>> + len = sizeof(wiphy->fw_version);
>> + snprintf(wiphy->fw_version, len, "%d.%d.%d-%d",
>> + priv->fw_version.major, priv->fw_version.minor,
>> + priv->fw_version.patch, priv->fw_version.build);
>> +
>> + len = sizeof(wiphy->hw_version);
>> + snprintf(wiphy->hw_version, len, "%d", priv->board_type);
>> +
>> + /* null terminate the strings in case they were truncated */
>> + wiphy->fw_version[len - 1] = '\0';
>> + wiphy->hw_version[len - 1] = '\0';
>
> This only works as long as sizeof(wiphy->fw_version) == sizeof(wiphy->hw_version) - which is currently the case.
> For sizeof(wiphy->fw_version) < sizeof(wiphy_hw_version) it overwrites memory behind wiphy->fw_version.
Good point, thanks for catching that.
> IMHO this is more robust against changes in the lengths of the char arrays:
>
> + wiphy->fw_version[sizeof(wiphy->fw_version) - 1] = '\0';
> + wiphy->hw_version[sizeof(wiphy->hw_version) - 1] = '\0';
Actually Christian pointed out that snprintf() always null terminates
the string and all this unnecessary. So I'll just remove this in v2.
Kalle
^ permalink raw reply
* Massive packet loss with ath9k, AR9280, hostapd in 802.11n mode
From: Rene Mayrhofer @ 2009-09-25 18:54 UTC (permalink / raw)
To: linux-wireless
Hi everybody,
[Please CC me in replies, I am currently not subscribed to this list.]
For quite a few weeks, I have now been trying to get an AR9280 mini-PCI card
to run as an access point, both in 802.11g and 802.11n mode.
In 802.11g mode, it seems to work for some time with multiple clients, but
then generally drops most packets (estimated >90%) after a period of a few
hours of usage. Restarting the device makes it work again.
In 802.11n mode, one client (Asus eeePC 1000 with Atheros 802.11agn chipset)
initially gets a fairly stable connection (with massive packet loss after some
period of usage), while another client (Dell Latitude XT with Broadcom
802.11ag chipset) only manages to connect with an absymal transfer rate (<2
MBit/s).
This behaviour seems to be mostly independent from WPA and encryption settings
(with the unencrypted connection being sometimes slower than the WPA2/AES
secured one), and does not change much with driver versions. My default driver
is the one included in the upstream 2.6.30.5/.7 kernel, but I have also tried
compat-wireless-2.6 in multiple versions, including 2009-09-25.
The hardware is detected as:
[ 25.714849] cfg80211: Calling CRDA for country: US
[ 27.233246] geode-aes: GEODE AES engine enabled.
[ 27.510611] AMD Geode RNG detected
[ 29.955007] phy0: Selected rate control algorithm 'ath9k_rate_control'
[ 29.957464] cfg80211: Calling CRDA for country: US
[ 29.965266] Registered led device: ath9k-phy0::radio
[ 29.965407] Registered led device: ath9k-phy0::assoc
[ 29.965540] Registered led device: ath9k-phy0::tx
[ 29.965693] Registered led device: ath9k-phy0::rx
[ 29.965744] phy0: Atheros AR9280 MAC/BB Rev:2 AR5133 RF Rev:d0:
mem=0xd0b60000, irq=9
and sits in a mini-PCI slow on an Alix2d13 boards.
hostapd is version v0.6.9 from Debian testing and configured with these
relevant options:
interface=wlan0
country_code=AT
hw_mode=g
ieee80211n=1
ht_capab=[HT40-][SHORT-GI-40]
channel=6
wpa=3
wpa_passphrase=<long string>
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
rsn_pairwise=CCMP
driver=nl80211
wme_enabled=1
wme_ac_bk_cwmin=4
wme_ac_bk_cwmax=10
wme_ac_bk_aifs=7
wme_ac_bk_txop_limit=0
wme_ac_bk_acm=0
wme_ac_be_aifs=3
wme_ac_be_cwmin=4
wme_ac_be_cwmax=10
wme_ac_be_txop_limit=0
wme_ac_be_acm=0
wme_ac_vi_aifs=2
wme_ac_vi_cwmin=3
wme_ac_vi_cwmax=4
wme_ac_vi_txop_limit=94
wme_ac_vi_acm=0
wme_ac_vo_aifs=2
wme_ac_vo_cwmin=2
wme_ac_vo_cwmax=3
wme_ac_vo_txop_limit=47
wme_ac_vo_acm=0
The WME settings were taken from the OpenWRT forum and indeed improved
stability and throughput, although I can not currently quantify the
improvement.
Unfortunately, I seem to have more questions than answers:
1. Could this be an instance of the issue with massive packet loss that has
been documented previously with ath9k? Is this a known problem with AR9280?
Are there any patches floating around that are not yet in compat-wireless and
that I could try?
2. Is there anything to be done about the Broadcom client, and why is it much
more unstable than the Atheros one?
3. Why does the ath9k driver in AP mode fail to work after a few hours and
needs a restart?
4. How do I tell CRDA to load frequency definitions for my location (AT)
instead of the default (US)? I might be blind, stupid, or both, but using the
slightly conflicting documentation available on various Wikis, I was unable to
change this. I have read that some chipsets are hard-wired for one location
and can't be changed, but couldn't find out if mine is (it was bought in
Europe, so shouldn't be locked to US in any case). An RTFM (with an up-to-date
pointer, preferrably for Debian/Ubuntu) in this matter would be highly
appreciated.
5. After having set the correct location, is hw_mode=a and channel=40 actually
supposed to work? I have not, so far, managed to get this device into 802.11an
mode (which might be down to locked frequencies).
Any hints, pointers, or - even better - patches are very welcome ;-)
best regards,
Rene
^ permalink raw reply
* Re: Problems with WPA in mainline 2.6.31-gitX
From: Christian Lamparter @ 2009-09-25 18:42 UTC (permalink / raw)
To: Larry Finger; +Cc: Johannes Berg, John Linville, wireless
In-Reply-To: <4ABD0B0D.5020002@lwfinger.net>
On Friday 25 September 2009 20:25:17 Larry Finger wrote:
> Johannes and John,
>
> I found that commit bbac31f4 "cfg80211: fix SME connect" breaks WPA2
> connections. I found the problem using bisection. I verified the
> bisection by reverting the patch above. I also found that commit
> 55a00b833 "cfg80211: don't overwrite privacy setting" from
> wireless-testing fixed the issue.
>
> Is the latter patch on its way upstream? If so, I will not bother with
> posting a regression on LKML or a bugzilla report. If not, I will
> initiate the formalities to ensure that the second patch is included
> in mainline.
>
it made it into 2.6.31-git16:
"cfg80211: don't overwrite privacy setting"
94f85853324e02c3a32bc3101f090dc9a3f512b4
but, "[PATCH] cfg80211: don't set privacy w/o key"
is still missing.
Regards,
Chr
^ permalink raw reply
* Problems with WPA in mainline 2.6.31-gitX
From: Larry Finger @ 2009-09-25 18:25 UTC (permalink / raw)
To: Johannes Berg, John Linville; +Cc: wireless
Johannes and John,
I found that commit bbac31f4 "cfg80211: fix SME connect" breaks WPA2
connections. I found the problem using bisection. I verified the
bisection by reverting the patch above. I also found that commit
55a00b833 "cfg80211: don't overwrite privacy setting" from
wireless-testing fixed the issue.
Is the latter patch on its way upstream? If so, I will not bother with
posting a regression on LKML or a bugzilla report. If not, I will
initiate the formalities to ensure that the second patch is included
in mainline.
Larry
^ permalink raw reply
* Re: Porting AR6K to use cfg80211
From: Michael Buesch @ 2009-09-25 18:05 UTC (permalink / raw)
To: Matthew Ryan; +Cc: linux-wireless
In-Reply-To: <loom.20090925T193922-290@post.gmane.org>
On Friday 25 September 2009 19:40:52 Matthew Ryan wrote:
> I was curious if I could get a few expert opinions on if its possible to port
> this driver to use mac80211, and how difficult/ what pitfalls there may be.
The device is fullmac, so it does not require mac80211.
I guess however, ar6k can be ported to use cfg80211.
--
Greetings, Michael.
^ permalink raw reply
* Porting AR6K to use cfg80211
From: Matthew Ryan @ 2009-09-25 17:40 UTC (permalink / raw)
To: linux-wireless
Hi All,
I am using the Neo Freerunner(http://wiki.openmoko.org/wiki/Neo_FreeRunner)
on a project which I am trying to setup to use a wireless mesh network using
open80211s
I was able to build a custom kernel to enable the 80211_MESH capability, but
finally realised the driver that ships with the Freerunner isn't compatible
with the new stack.
The chipset is:
Accton (WLAN 802.11b/g SiP-M WM3236AQ(Flash Ver:2.0 Atheros AR6001GZ) which
uses the AR6K driver, which from what I have read doesn't use mac80211.
Unfortunately I know very little about wireless drivers.
I was curious if I could get a few expert opinions on if its possible to port
this driver to use mac80211, and how difficult/ what pitfalls there may be.
While I don't know much about wireless drivers, I do have extensive
experience porting other drivers and don't usually shy away from a challenge ;)
So, if there's any positive feedback I would give it a shot.
Thanks for your time and comments.
Matt Ryan
^ permalink raw reply
* Re: [PATCH 0/2] cfg80211: firmware and hardware version
From: Luis R. Rodriguez @ 2009-09-25 16:53 UTC (permalink / raw)
To: Kalle Valo; +Cc: John W. Linville, linux-wireless
In-Reply-To: <da94abde0909250947k5084db85vccafe0d3e74e2ecf@mail.gmail.com>
On Fri, Sep 25, 2009 at 9:47 AM, Kalle Valo <kalle.valo@iki.fi> wrote:
> On Thu, Sep 24, 2009 at 9:42 PM, John W. Linville
> <linville@tuxdriver.com> wrote:
>> On Thu, Sep 24, 2009 at 01:20:35PM -0700, Luis R. Rodriguez wrote:
>>> On Thu, Sep 24, 2009 at 11:02 AM, Kalle Valo <kalle.valo@iki.fi> wrote:
>>> > Here's my suggestion how to provide firmware and hardware version to
>>> > user space. First I was thinking adding a new nl80211 command and
>>> > it looked so ugly that I decided include the versions in struct wiphy
>>> > instead.
>>> >
>>> > Please comment.
>>>
>>> What was the conclusion on ethtool stuff again? I forgot.
>>
>> IIRC, I suggested that the cfg80211 driver API (or just the wiphy
>> data structure) could be extended for appropriate bits like this,
>> then cfg80211 could catch ethtool operations in a way similar to how
>> it catches wireless extensions now.
>
> Oh, then I misunderstood our discussion at the summit, my
> understanding was that we will use nl80211 anyway. Sorry about that.
>
> But we want to export two strings to user space (at least for now), is
> it really worth the effort to add ethtool support for such a minor
> feature? Also I have understood that ethtool is implemented only for
> ethernet drivers, I don't feel comfortable that we use ethernet driver
> interfaces with 802.11 device drivers. They are so much different that
> there isn't that much common functionality. That's why I prefer
> nl80211 over ethtool.
>
> What do people think?
So for Wake-on-Wireless I ran into the same, ethtool just did not
offer the same wake up events needed for wireless. I could have
technically used ethtool and expanded it to support wireless but it
just seemed dirty.
I agree that using ethtool seems overkill compared to the patches you posted.
Luis
^ permalink raw reply
* Re: ar9170 makes machine hang when shut down
From: Luis R. Rodriguez @ 2009-09-25 16:51 UTC (permalink / raw)
To: Malte Gell; +Cc: linux-wireless
In-Reply-To: <200909251132.18546.malte.gell@gmx.de>
On Fri, Sep 25, 2009 at 2:32 AM, Malte Gell <malte.gell@gmx.de> wrote:
>
> Joerg Albert <jal2@gmx.de> wrote
>
>> > Does it make sense to use "rmmod --force ar9170" to force removing that
>> > module before shutting down?
>>
>> Why are you sure that the hang is caused by the ar9170 driver?
>
> You are right.... I thought this way, because my machine never hung and after
> installing the USB stick it hang... But, I noticed when i disable ISDN
> subsystem, it did not hang, so maybe it is the ISDN subsystem, I will try
> further.
>
>> The vendor driver is called arusb_lnx, the new one ar9170usb
>
> Vendor driver? Does this mean, Atheros made a driver on its own? Are there
> several drivers for the same chip now?
Atheros wrote a vendor driver called otus for ar9170 devices, this was
prior to the change of focus on working upstream. Atheros then
released code and gave specs, etc to a community developer who wrote a
proper mac80211 driver for ar9170. The main focus for development
today is ar9170. I believe ar9170 does not yet have AMPDU aggregation
enabled by default so otus is still available including the stock
kernel under drivers/staging area until ar9170 matches all features
provided by otus, Read each drivers's wiki page, the section regarding
ar9170 and 11n support is very outdated, I know Chris has worked hard
on this area.
http://wireless.kernel.org/en/users/Drivers/otus
http://wireless.kernel.org/en/users/Drivers/ar9170
I have a feeling not enough people know about the wireless wiki...
Luis
^ permalink raw reply
* Re: [PATCH 0/2] cfg80211: firmware and hardware version
From: Kalle Valo @ 2009-09-25 16:47 UTC (permalink / raw)
To: John W. Linville; +Cc: Luis R. Rodriguez, linux-wireless
In-Reply-To: <20090925044258.GA2722@tuxdriver.com>
On Thu, Sep 24, 2009 at 9:42 PM, John W. Linville
<linville@tuxdriver.com> wrote:
> On Thu, Sep 24, 2009 at 01:20:35PM -0700, Luis R. Rodriguez wrote:
>> On Thu, Sep 24, 2009 at 11:02 AM, Kalle Valo <kalle.valo@iki.fi> wrote:
>> > Here's my suggestion how to provide firmware and hardware version to
>> > user space. First I was thinking adding a new nl80211 command and
>> > it looked so ugly that I decided include the versions in struct wiphy
>> > instead.
>> >
>> > Please comment.
>>
>> What was the conclusion on ethtool stuff again? I forgot.
>
> IIRC, I suggested that the cfg80211 driver API (or just the wiphy
> data structure) could be extended for appropriate bits like this,
> then cfg80211 could catch ethtool operations in a way similar to how
> it catches wireless extensions now.
Oh, then I misunderstood our discussion at the summit, my
understanding was that we will use nl80211 anyway. Sorry about that.
But we want to export two strings to user space (at least for now), is
it really worth the effort to add ethtool support for such a minor
feature? Also I have understood that ethtool is implemented only for
ethernet drivers, I don't feel comfortable that we use ethernet driver
interfaces with 802.11 device drivers. They are so much different that
there isn't that much common functionality. That's why I prefer
nl80211 over ethtool.
What do people think?
Kalle
^ permalink raw reply
* Re: [PATCH] ACPI: New driver for Lenovo SL laptops
From: Alan Jenkins @ 2009-09-25 16:20 UTC (permalink / raw)
To: Ike Panhc
Cc: linux-acpi, linux-kernel, Alexandre Rostovtsev,
linux-wireless@vger.kernel.org
In-Reply-To: <1253805163-12493-1-git-send-email-ike.pan@canonical.com>
On 9/24/09, Ike Panhc <ike.pan@canonical.com> wrote:
> lenovo-sl-laptop is a new driver that provides support for hotkeys,
> bluetooth,
> LenovoCare LEDs and fan speed on the Lenovo ThinkPad SL series laptops. The
> original author is Alexandre Rostovtsev. [1] In February 2009 Alexandre has
> posted the driver on the linux-acpi mailing list and and there was some
> feedback suggesting further modifications. [2] I would like to see Linux
> working properly on these laptops. I was encouraged to push this driver
> again
> with the modifications that where suggested in the responses to the initial
> post in order to allow me and others interested in that driver to improve it
> and hopefully get it included upstream.
>
> [1] homepage : http://github.com/tetromino/lenovo-sl-laptop/tree/master
> [2] http://patchwork.kernel.org/patch/7427/
>
> Following the suggestions when last time the origin author has posted on the
> linux-acpi mailing list. The major modification of this driver is listed
> below.
> - Remove backlight control
> - Remove procfs EC debug
> - Remove fan control function
> - Using generic debugging infrastructure
> - Support for lastest rfkill infrastructure (by Alexandre)
> - Register query function into EC for detecting hotkey event
>
> Patch against current checkout of linux-acpi 2.6.31 is below.
I have some comments on the rfkill code.
> +/*************************************************************************
> + Bluetooth, WWAN, UWB
> + *************************************************************************/
> +
> +enum {
> + /* ACPI GBDC/SBDC, GWAN/SWAN, GUWB/SUWB bits */
> + LENSL_RADIO_HWPRESENT = 0x01, /* hardware is available */
> + LENSL_RADIO_RADIOSSW = 0x02, /* radio is enabled */
> + LENSL_RADIO_RESUMECTRL = 0x04, /* state at resume: off/last state */
> +};
> +
> +typedef enum {
> + LENSL_BLUETOOTH = 0,
> + LENSL_WWAN,
> + LENSL_UWB,
> +} lensl_radio_type;
> +
> +/* pretend_blocked indicates whether we pretend that the device is
> + hardware-blocked (used primarily to prevent the device from coming
> + online when the module is loaded) */
Where do I find pretend_blocked?
> +struct lensl_radio {
> + lensl_radio_type type;
> + enum rfkill_type rfktype;
> + int present;
> + char *name;
> + char *rfkname;
> + struct rfkill *rfk;
> + int (*get_acpi)(int *);
> + int (*set_acpi)(int);
> + int *auto_enable;
> +};
> +
> +static inline int get_wlsw(int *value)
> +{
> + return lensl_acpi_int_func(hkey_handle, "WLSW", value, 0);
> +}
> +
> +static inline int get_gbdc(int *value)
> +{
> + return lensl_acpi_int_func(hkey_handle, "GBDC", value, 0);
> +}
> +
> +static inline int get_gwan(int *value)
> +{
> + return lensl_acpi_int_func(hkey_handle, "GWAN", value, 0);
> +}
> +
> +static inline int get_guwb(int *value)
> +{
> + return lensl_acpi_int_func(hkey_handle, "GUWB", value, 0);
> +}
> +
> +static inline int set_sbdc(int value)
> +{
> + return lensl_acpi_int_func(hkey_handle, "SBDC", NULL, 1, value);
> +}
> +
> +static inline int set_swan(int value)
> +{
> + return lensl_acpi_int_func(hkey_handle, "SWAN", NULL, 1, value);
> +}
> +
> +static inline int set_suwb(int value)
> +{
> + return lensl_acpi_int_func(hkey_handle, "SUWB", NULL, 1, value);
> +}
> +
> +static int lensl_radio_get(struct lensl_radio *radio, int *hw_blocked,
> + int *value)
> +{
> + int wlsw;
> +
> + *hw_blocked = 0;
> + if (!radio)
> + return -EINVAL;
> + if (!radio->present)
> + return -ENODEV;
How does this ever happen? Is this "present" bit really needed?
> + if (!get_wlsw(&wlsw) && !wlsw)
> + *hw_blocked = 1;
> + if (radio->get_acpi(value))
> + return -EIO;
> + return 0;
> +}
> +
> +static int lensl_radio_set_on(struct lensl_radio *radio, int *hw_blocked,
> + bool on)
> +{
> + int value, ret;
> + ret = lensl_radio_get(radio, hw_blocked, &value);
> + if (ret < 0)
> + return ret;
> + /* WLSW overrides radio in firmware/hardware, but there is
> + no reason to risk weird behaviour. */
> + if (*hw_blocked)
> + return ret;
> + if (on)
> + value |= LENSL_RADIO_RADIOSSW;
> + else
> + value &= ~LENSL_RADIO_RADIOSSW;
> + if (radio->set_acpi(value))
> + return -EIO;
> + return 0;
> +}
> +
> +/* Bluetooth/WWAN/UWB rfkill interface */
> +
> +static void lensl_radio_rfkill_query(struct rfkill *rfk, void *data)
> +{
> + int ret, value = 0;
> + ret = get_wlsw(&value);
> + if (ret)
> + return;
> + rfkill_set_hw_state(rfk, !value);
> +}
> +
> +static int lensl_radio_rfkill_set_block(void *data, bool blocked)
> +{
> + int ret, hw_blocked = 0;
> + ret = lensl_radio_set_on((struct lensl_radio *)data,
> + &hw_blocked, !blocked);
> + /* rfkill spec: just return 0 on hard block */
> + return ret;
> +}
> +
> +static struct rfkill_ops rfkops = {
> + NULL,
> + lensl_radio_rfkill_query,
> + lensl_radio_rfkill_set_block,
> +};
Unlike thinkpad_acpi or eeepc-laptop, I don't see any support for rfkill notifications. Can you get a notification when the hardware block changes? (I assume it's associated with a switch the user can change). If there's an ACPI notification you should be able to reverse engineer it in the time honoured way :-).
If there's no obvious notification, you should probably use polling, i.e. set .poll() as well as .query().
The third alternative is that you're like dell-laptop, you're planning to get events via the keyboard controller, and you're waiting until Matthew Garret gets the necessary hooks into the linux input stack. If that's the case you should just add a TODO comment so we know what's going on.
> +static int lensl_radio_new_rfkill(struct lensl_radio *radio,
> + struct rfkill **rfk, bool sw_blocked,
> + bool hw_blocked)
> +{
> + int res;
> +
> + *rfk = rfkill_alloc(radio->rfkname, &lensl_pdev->dev, radio->rfktype,
> + &rfkops, radio);
> + if (!*rfk) {
> + pr_err("Failed to allocate memory for rfkill class\n");
> + return -ENOMEM;
> + }
> +
> + rfkill_set_hw_state(*rfk, hw_blocked);
> + rfkill_set_sw_state(*rfk, sw_blocked);
You could do this in one call
rfkill_set_states(*rfk, sw_blocked, hw_blocked);
> +
> + res = rfkill_register(*rfk);
> + if (res < 0) {
> + pr_err("Failed to register %s rfkill switch: %d\n",
> + radio->rfkname, res);
> + rfkill_destroy(*rfk);
> + *rfk = NULL;
> + return res;
> + }
> +
> + return 0;
> +}
> +
> +/* Bluetooth/WWAN/UWB init and exit */
> +
> +static struct lensl_radio lensl_radios[3] = {
> + {
> + LENSL_BLUETOOTH,
> + RFKILL_TYPE_BLUETOOTH,
> + 0,
> + "bluetooth",
Ugh, I lose track of fields. How about using named initializers, e.g.
.name = "bluetooth",
And this first "name" field doesn't seem to be used for anything useful. Can we get rid of it please?
> + "lensl_bluetooth_sw",
> + NULL,
> + get_gbdc,
> + set_sbdc,
The getter and setter callbacks seem a bit over-engineered. Can't we just use something like
.acpi_method = "SBDC",
> + &bluetooth_auto_enable,
> + },
> + {
> + LENSL_WWAN,
> + RFKILL_TYPE_WWAN,
> + 0,
> + "WWAN",
> + "lensl_wwan_sw",
> + NULL,
> + get_gwan,
> + set_swan,
> + &wwan_auto_enable,
> + },
> + {
> + LENSL_UWB,
> + RFKILL_TYPE_UWB,
> + 0,
> + "UWB",
> + "lensl_uwb_sw",
> + NULL,
> + get_guwb,
> + set_suwb,
> + &uwb_auto_enable,
> + },
> +};
> +
> +static void radio_exit(lensl_radio_type type)
> +{
> + if (lensl_radios[type].rfk)
> + rfkill_unregister(lensl_radios[type].rfk);
> +}
> +
> +static int radio_init(lensl_radio_type type)
> +{
> + int value, res, hw_blocked = 0, sw_blocked;
> +
> + if (!hkey_handle)
> + return -ENODEV;
> + lensl_radios[type].present = 1; /* need for lensl_radio_get */
> + res = lensl_radio_get(&lensl_radios[type], &hw_blocked, &value);
> + lensl_radios[type].present = 0;
> + if (res && !hw_blocked)
> + return -EIO;
> + if (!(value & LENSL_RADIO_HWPRESENT))
> + return -ENODEV;
> + lensl_radios[type].present = 1;
> +
> + if (*lensl_radios[type].auto_enable) {
> + sw_blocked = 0;
> + value |= LENSL_RADIO_RADIOSSW;
> + lensl_radios[type].set_acpi(value);
> + } else {
> + sw_blocked = 1;
> + value &= ~LENSL_RADIO_RADIOSSW;
> + lensl_radios[type].set_acpi(value);
> + }
This is very suspicious. The rfkill core supports two possibilities here:
1) Platform preserves soft-blocked state even when power is removed. Driver calls rfkill_init_sw_state(rfk, sw_blocked) before registration. Rfkill core will respect this value (userspace may have other ideas though :-).
It sounds like your hardware could support this first case, but here's the other one for comparison -
2) Platform does not preserve soft-blocked state, or perhaps there is some problem which means we can't trust the platform. Instead, the *rfkill core* will call set_block() at registration time, with a value taken from the rfkill.default_state module parameter. The driver should not attempt to initialise the soft blocked state itself.
In either case, the driver should report the current hardware-blocked state before registration. That seems to be missing here as well.
> +
> + res = lensl_radio_new_rfkill(&lensl_radios[type],
> + &lensl_radios[type].rfk,
> + sw_blocked, hw_blocked);
> +
> + if (res) {
> + radio_exit(type);
> + return res;
> + }
> + pr_devel("Initialized %s subdriver\n", lensl_radios[type].name);
> +
> + return 0;
> +}
> +
> +/*************************************************************************
> + init/exit
> + *************************************************************************/
> +
> +static int __init lenovo_sl_laptop_init(void)
> +{
> + int ret;
> + acpi_status status;
> +
> + if (acpi_disabled)
> + return -ENODEV;
> +
> + lensl_wq = create_singlethread_workqueue(LENSL_WORKQUEUE_NAME);
> + if (!lensl_wq) {
> + pr_err("Failed to create a workqueue\n");
> + return -ENOMEM;
> + }
> +
> + hkey_handle = ec0_handle = NULL;
> + status = acpi_get_handle(NULL, LENSL_HKEY, &hkey_handle);
> + if (ACPI_FAILURE(status)) {
> + pr_err("Failed to get ACPI handle for %s\n", LENSL_HKEY);
> + return -ENODEV;
> + }
> + status = acpi_get_handle(NULL, LENSL_EC0, &ec0_handle);
> + if (ACPI_FAILURE(status)) {
> + pr_err("Failed to get ACPI handle for %s\n", LENSL_EC0);
> + return -ENODEV;
> + }
> +
> + lensl_pdev = platform_device_register_simple(LENSL_DRVR_NAME, -1,
> + NULL, 0);
> + if (IS_ERR(lensl_pdev)) {
> + ret = PTR_ERR(lensl_pdev);
> + lensl_pdev = NULL;
> + pr_err("Failed to register platform device\n");
> + return ret;
> + }
> +
> + radio_init(LENSL_BLUETOOTH);
> + radio_init(LENSL_WWAN);
> + radio_init(LENSL_UWB);
> +
> + hkey_register_notify();
> + led_init();
> + hwmon_init();
> +
> + pr_info("Loaded Lenovo ThinkPad SL Series driver\n");
> + return 0;
> +}
> +
> +static void __exit lenovo_sl_laptop_exit(void)
> +{
> + hwmon_exit();
> + led_exit();
> + hkey_unregister_notify();
> +
> + radio_exit(LENSL_UWB);
> + radio_exit(LENSL_WWAN);
> + radio_exit(LENSL_BLUETOOTH);
> +
> + if (lensl_pdev)
> + platform_device_unregister(lensl_pdev);
> + destroy_workqueue(lensl_wq);
> +
> + pr_info("Unloaded Lenovo ThinkPad SL Series driver\n");
> +}
> +
> +MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO*:*:pvrThinkPad SL*:rvnLENOVO:*");
> +MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO*:*:pvrThinkPadSL*:rvnLENOVO:*");
> +
> +module_init(lenovo_sl_laptop_init);
> +module_exit(lenovo_sl_laptop_exit);
^ permalink raw reply
* Re: Problems with "cfg80211: fix SME connect" commit
From: Hin-Tak Leung @ 2009-09-25 15:54 UTC (permalink / raw)
To: Johannes Berg; +Cc: Albert Herranz, Holger Schurig, linville, linux-wireless
In-Reply-To: <1253859759.3868.569.camel@johannes.local>
On Fri, Sep 25, 2009 at 7:22 AM, Johannes Berg
<johannes@sipsolutions.net> wrote:
> Thanks for your analysis.
>
>> This seems to look like/relate to a little problem I have for the last
>> few days - lately I have authentication failure on first try and have
>> to click on NM a 2nd time for it to go through; blow away
>> compat-wireless & revert to as-shipped distro modules gives me the
>> older/smooth behavior of NM just associating without me
>> clicking/asking.
>>
>> v2.6.31-38294-ged3ac87 + 'cfg80211: don't set privacy w/o key' doesn't
>> improve my situation.
>>
>> wpa_supplicant log:
>> --------- distro modules:
>> Trying to associate with <id> (SSID='ID' freq=2437 MHz)
>> Associated with <id>
>> CTRL-EVENT-CONNECTED - Connection to <id> completed (auth) [id=0 id_str=]
>> CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
>>
>> -------- compat-wireless
>> Trying to associate with <id> (SSID='ID' freq=2437 MHz)
>> Authentication with 00:00:00:00:00:00 timed out.
>> Trying to associate with <id> (SSID='ID' freq=2437 MHz)
>> Associated with <id>
>> CTRL-EVENT-CONNECTED - Connection to <id> completed (auth) [id=0 id_str=]
>>
>> ------ dmesg distro modules
>> wlan2: direct probe to AP <id> try 1
>> wlan2 direct probe responded
>> wlan2: authenticate with AP <id>
>> wlan2: authenticated
>> wlan2: associate with AP <id>
>> wlan2: RX AssocResp from <id> (capab=0x431 status=0 aid=1)
>> wlan2: associated
>>
>> ------ compat-wireless, note the extra deauth at the beginning, and
>> all those 'try 1''s.
>> wlan2: deauthenticating by local choice (reason=3)
>> wlan2: direct probe to AP <id> (try 1)
>> wlan2 direct probe responded
>> wlan2: authenticate with AP <id> (try 1)
>> wlan2: authenticated
>> wlan2: associate with AP <id> (try 1)
>> wlan2: RX AssocResp from <id> (capab=0x431 status=0 aid=1)
>> wlan2: associated
>
> I've analysed this, and now know the reason for the extra deauth, but it
> shouldn't hurt since we never send a wireless extensions event. The
> reason is that once wpa_supplicant sets the SSID we already start to
> connect with the new changes, but then setting the BSSID might require
> restarting the process. This could be optimised, but I would prefer not
> having to.
>
> I can see a problem with the code and it trying to scan once more again
> etc. Below patch seems to help for me. However, I only once managed to
> reproduce the problem you were seeing with the authentication timeout in
> wpa_supplicant.
>
> Can you try this? The last hunk is most important, but the other stuff
> helps debugging.
Great. The extra timeout in wap_spplicant.log is gone, so it is back
to NM does it all by itself.
Here is the dmesg from this patch on top of everything else so far:
wlan2: starting authentication with _id_
wlan2: deauthenticating from _id_ by local choice (reason=3)
wlan2: starting authentication with _id_
wlan2: direct probe to AP _id_ (try 1)
wlan2: direct probe responded
wlan2: authenticate with AP _id_ (try 1)
wlan2: authenticated
wlan2: starting association with _id_
wlan2: associate with AP _id_ (try 1)
wlan2: RX AssocResp from _id_ (capab=0x431 status=0 aid=1)
wlan2: associated
There is still the extra deauth at the beginning, but I guess I can
live with it, it doesn't require user action to deal with (unlike
without this latest patch) I suppose there might be more tuning before
commit? Otherwise Tested-by:
Hmm, slightly side-tracked - was the original poster using NM on top
on wpa_supplicant, just curious?
Cheers,
Hin-Tak
^ permalink raw reply
* Re: zd1211rw on Debian not working with new kernels
From: Hin-Tak Leung @ 2009-09-25 15:07 UTC (permalink / raw)
To: Michele Alessandrini; +Cc: linux-wireless
In-Reply-To: <200909251047.46826.m.alessandrini@deit.univpm.it>
2009/9/25 Michele Alessandrini <m.alessandrini@deit.univpm.it>:
> Hi everybody,
> I have a Sitecom WL-113 USB wireless adapter, and I use Debian testing with
> zd1211rw. My wireless network uses WPA.
> The adapter is working with kernel up to 2.6.24. It is not working anymore
> with kernels 2.6.26 and 2.6.30 (these are the kernels I could test).
> From what I can see, wpa_supplicant gets a series of errors from the driver
> when it tries to associate to the network.
> Provided that the OS is exactly the same, and the only variable is which
> kernel is booted, I think it's something related to the driver (kernel 2.6.26
> is where the MAC layer has been changed) or to the interface between it and
> wpa_supplicant.
> I'm just writing to ask if this is a know issue or if someone else is getting
> similar problems.
> Thank you very much for your work
> Bye
> Michele Alessandrini, Italy
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
I am quite sure you are mistaken. Debian ships a version of the
vendor/vendor-derived driver up to 2.6.24(?) and I don't know when
they switch over. You should approach the debian people on your
problem.
^ permalink raw reply
* Re: 2.6.31-git wireless broken
From: Christian Lamparter @ 2009-09-25 14:56 UTC (permalink / raw)
To: Holger Schurig; +Cc: Hugh Dickins, linux-wireless
In-Reply-To: <200909251045.38894.hs4233@mail.mn-solutions.de>
On Friday 25 September 2009 10:45:38 Holger Schurig wrote:
> > I wonder, have there been more yet more regdom reworks since 2.6.31?
> > Would this be the stage at which regdom problems manifest? I'm not
> > running whatever-it-is daemon for setting regdom, usually just patch
> > static char *ieee80211_regdom = "EU";
> > into my kernels; but in the past have only needed that when the router
> > decides to use channel 13 or something - currently it's on channel 1.
>
> I've install crda and it works great with 2.6.31, althought I had
> to override the EEPROM, which reports bugus data:
>
> - ath_regd_sanitize(reg);
> -
> - printk(KERN_DEBUG "ath: EEPROM regdomain: 0x%0x\n", reg->current_rd);
> + reg->current_rd = CTRY_GERMANY | COUNTRY_ERD_FLAG;
>
FYI: the athinfo (from the madwifi-project) utility can be used to write a
a sane regdomain code into the EEPROM chip on most ath5k cards.
^ permalink raw reply
* Re: getting "ath5k phy0: noise floor calibration timeout"
From: Bob Copeland @ 2009-09-25 14:39 UTC (permalink / raw)
To: Holger Schurig; +Cc: Dan Williams, linux-wireless, Luis R. Rodriguez
In-Reply-To: <200909241015.06706.hs4233@mail.mn-solutions.de>
On Thu, Sep 24, 2009 at 4:15 AM, Holger Schurig
<hs4233@mail.mn-solutions.de> wrote:
> On ath5k-devel, there was a mail "[ath5k-devel] [RFC/RFT] ath5k:
> use noise calibration from madwifi hal" from Bob Copeland.
>
> Part of the patch is "- we do not complain if NF calibration
> isn't complete, instead we keep the last read value.".
Yeah, NF calibration timeout happens all the time (also in
madwifi/ath9k) so we should just silence it. At best, it indicates
a problem that the user can't do anything about; at worst, it
leads to bug reports accusing the NF calibration of wholly unrelated
things.
I really should finish testing and push that patch, real life has
just been in the way lately.
--
Bob Copeland %% www.bobcopeland.com
^ permalink raw reply
* Re: 2.6.31-git wireless broken
From: Hugh Dickins @ 2009-09-25 14:15 UTC (permalink / raw)
To: Johannes Berg; +Cc: John W. Linville, Rafael J. Wysocki, linux-wireless
In-Reply-To: <1253868214.3868.713.camel@johannes.local>
On Fri, 25 Sep 2009, Johannes Berg wrote:
> On Fri, 2009-09-25 at 09:06 +0100, Hugh Dickins wrote:
>
> > Should be, but you're right, for whatever reason it is not running
> > with these recent kernels.
> >
> > I expect that correlates with iwconfig showing me ESSID:off/any.
>
> Well it showing you that means that nothing is even trying to connect :)
>
> > I'm thinking that (unless you've a better idea) I should do another
> > bisect for when that behaviour starts - hoping that whatever problem
> > led me to your patch, got fixed up later on, but superseded by this
> > different problem.
>
> Not sure, might be very time consuming.
That bisection, focussing on wpa_supplicant running versus ESSID:off/any
(indeed they match up), now completed on the Aspire One (I'll assume for
the moment that the laptop would show the same).
Yes, it does appear that the patch I originally pointed to introduced a
problem which later got fixed, but was enough to throw the bisection off
when I just looked for "wireless not working".
But you can't escape, you've been too busy, the guilty patch is...
a9a11622c5c742c115fad371c0397ae86dd3bb67 is first bad commit
commit a9a11622c5c742c115fad371c0397ae86dd3bb67
Author: Johannes Berg <johannes@sipsolutions.net>
Date: Mon Jul 27 12:01:53 2009 +0200
cfg80211: self-contained wext handling where possible
Finally! This is what you've all been waiting for!
This patch makes cfg80211 take care of wext emulation
_completely_ by itself, drivers that don't need things
cfg80211 doesn't do yet don't even need to be aware of
wireless extensions.
This means we can also clean up mac80211's and iwm's
Kconfig and make it possible to build them w/o wext
now!
RIP wext.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
:040000 040000 ce98d49476cd6547eabab0db90bdff31cc40104e 8ea4d1374da1fb39e1ea431cd07da96ecdccd565 M drivers
:040000 040000 23a9348f55a10a0c8278049f71be02728514fc61 de6267de96e307e41bb5aded9666c5bc1e4fe938 M net
RIP wireless - not quite what I'd been waiting for ;)
Hugh
^ permalink raw reply
* Re: [PATCH] [RFT] sony-laptop: re-read the rfkill state when resuming from suspend
From: Mattia Dongili @ 2009-09-25 11:55 UTC (permalink / raw)
To: Alan Jenkins
Cc: John W. Linville, linux-wireless@vger.kernel.org,
Norbert Preining
In-Reply-To: <4ABC8ADD.3090803@tuffmail.co.uk>
On Fri, Sep 25, 2009 at 10:18:21AM +0100, Alan Jenkins wrote:
> Without this, the hard-blocked state will be reported incorrectly if
> the hardware switch is changed while the laptop is suspended.
>
> Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Thanks Alan.
Acked-by: Mattia Dongili <malattia@linux.it>
> --
>
> Again, this is from code inspection only. Since suspend/resume can
> be tricky, please test that this change works (and is necessary).
>
>
> diff a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
> --- a/drivers/platform/x86/sony-laptop.c
> +++ b/drivers/platform/x86/sony-laptop.c
> @@ -1044,6 +1044,9 @@ static int sony_nc_resume(struct acpi_device *device)
> sony_backlight_update_status(sony_backlight_device) < 0)
> printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
>
> + /* re-read rfkill state */
> + sony_nc_rfkill_update();
> +
> return 0;
> }
>
>
>
--
mattia
:wq!
^ permalink raw reply
* Re: [PATCH] [RFT] sony-laptop: re-read the rfkill state when resuming from suspend
From: Norbert Preining @ 2009-09-25 10:51 UTC (permalink / raw)
To: Alan Jenkins
Cc: John W. Linville, linux-wireless@vger.kernel.org, Mattia Dongili
In-Reply-To: <4ABC8ADD.3090803@tuffmail.co.uk>
On Fr, 25 Sep 2009, Alan Jenkins wrote:
> Without this, the hard-blocked state will be reported incorrectly if
> the hardware switch is changed while the laptop is suspended.
I confirm that with the old module (without that patch) after:
- having rfkill de-activated (so devices working)
- suspend to ram
- while suspended turn on rfkill (disable all devices)
- resume
the rfkill event shows:
RFKILL event: idx 0 type 1 op 0 soft 0 hard 0
RFKILL event: idx 1 type 2 op 0 soft 0 hard 0
RFKILL event: idx 2 type 5 op 0 soft 0 hard 0
RFKILL event: idx 4 type 1 op 0 soft 0 hard 1
so it didn't work.
Adding the patch after resume I have
RFKILL event: idx 0 type 1 op 0 soft 0 hard 1
RFKILL event: idx 1 type 2 op 0 soft 0 hard 1
RFKILL event: idx 2 type 5 op 0 soft 0 hard 1
RFKILL event: idx 5 type 1 op 0 soft 0 hard 1
so that is fixed.
Tested-by: Norbert Preining <preining@logic.at>
>
> Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
> --
>
> Again, this is from code inspection only. Since suspend/resume can
> be tricky, please test that this change works (and is necessary).
>
>
> diff a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
> --- a/drivers/platform/x86/sony-laptop.c
> +++ b/drivers/platform/x86/sony-laptop.c
> @@ -1044,6 +1044,9 @@ static int sony_nc_resume(struct acpi_device *device)
> sony_backlight_update_status(sony_backlight_device) < 0)
> printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
>
> + /* re-read rfkill state */
> + sony_nc_rfkill_update();
> +
> return 0;
> }
>
>
Best wishes
Norbert
-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at> Vienna University of Technology
Debian Developer <preining@debian.org> Debian TeX Group
gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
HUTTOFT (n.)
The fibrous algae which grows in the dark, moist environment of
trouser turn-ups.
--- Douglas Adams, The Meaning of Liff
^ permalink raw reply
* [RFC/RFT] wext: refactor
From: Johannes Berg @ 2009-09-25 10:04 UTC (permalink / raw)
To: linux-wireless
Refactor wext to
* split out iwpriv handling
* split out iwspy handling
* split out procfs support
* allow cfg80211 to have wireless extensions compat code
w/o CONFIG_WIRELESS_EXT
After this, drivers need to
- select WIRELESS_EXT - for wext support
- select WEXT_PRIV - for iwpriv support
- select WEXT_SPY - for iwspy support
except cfg80211 -- which gets new hooks in wext-core.c
and can then get wext handlers without CONFIG_WIRELESS_EXT.
Wireless extensions procfs support is auto-selected
based on PROC_FS and anything that requires the wext core
(i.e. WIRELESS_EXT or CFG80211_WEXT).
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
---
drivers/net/wireless/Kconfig | 29
drivers/net/wireless/hostap/Kconfig | 2
drivers/net/wireless/ipw2x00/Kconfig | 5
drivers/net/wireless/orinoco/Kconfig | 2
include/net/cfg80211.h | 6
include/net/iw_handler.h | 14
include/net/net_namespace.h | 2
include/net/wext.h | 44
net/socket.c | 4
net/wireless/Kconfig | 50
net/wireless/Makefile | 8
net/wireless/core.c | 14
net/wireless/ibss.c | 10
net/wireless/mlme.c | 2
net/wireless/nl80211.c | 4
net/wireless/scan.c | 6
net/wireless/sme.c | 12
net/wireless/wext-core.c | 1060 ++++++++++++++++++++
net/wireless/wext-priv.c | 248 ++++
net/wireless/wext-proc.c | 155 +++
net/wireless/wext-spy.c | 231 ++++
net/wireless/wext.c | 1772 -----------------------------------
22 files changed, 1841 insertions(+), 1839 deletions(-)
--- wireless-testing.orig/net/wireless/Kconfig 2009-09-25 11:12:25.000000000 +0200
+++ wireless-testing/net/wireless/Kconfig 2009-09-25 11:55:11.000000000 +0200
@@ -1,3 +1,21 @@
+config WIRELESS_EXT
+ bool
+
+config WEXT_CORE
+ def_bool y
+ depends on CFG80211_WEXT || WIRELESS_EXT
+
+config WEXT_PROC
+ def_bool y
+ depends on PROC_FS
+ depends on WEXT_CORE
+
+config WEXT_SPY
+ bool
+
+config WEXT_PRIV
+ bool
+
config CFG80211
tristate "cfg80211 - wireless configuration API"
depends on RFKILL || !RFKILL
@@ -56,6 +74,12 @@ config CFG80211_REG_DEBUG
If unsure, say N.
+config CFG80211_DEFAULT_PS_VALUE
+ int
+ default 1 if CFG80211_DEFAULT_PS
+ default 0
+ depends on CFG80211
+
config CFG80211_DEFAULT_PS
bool "enable powersave by default"
depends on CFG80211
@@ -67,14 +91,10 @@ config CFG80211_DEFAULT_PS
applications instead -- they need to register their network
latency requirement, see Documentation/power/pm_qos_interface.txt.
-config CFG80211_DEFAULT_PS_VALUE
- int
- default 1 if CFG80211_DEFAULT_PS
- default 0
-
config CFG80211_DEBUGFS
bool "cfg80211 DebugFS entries"
- depends on CFG80211 && DEBUG_FS
+ depends on CFG80211
+ depends on DEBUG_FS
---help---
You can enable this if you want to debugfs entries for cfg80211.
@@ -83,6 +103,7 @@ config CFG80211_DEBUGFS
config WIRELESS_OLD_REGULATORY
bool "Old wireless static regulatory definitions"
default n
+ depends on CFG80211
---help---
This option enables the old static regulatory information
and uses it within the new framework. This option is available
@@ -94,20 +115,19 @@ config WIRELESS_OLD_REGULATORY
Say N and if you say Y, please tell us why. The default is N.
-config WIRELESS_EXT
- bool "Wireless extensions"
+config CFG80211_WEXT
+ bool "cfg80211 wireless extensions compatibility"
+ depends on CFG80211
+ select WEXT_CORE
default y
- ---help---
- This option enables the legacy wireless extensions
- (wireless network interface configuration via ioctls.)
-
- Say Y unless you've upgraded all your userspace to use
- nl80211 instead of wireless extensions.
+ help
+ Enable this option if you need old userspace for wireless
+ extensions with cfg80211-based drivers.
config WIRELESS_EXT_SYSFS
bool "Wireless extensions sysfs files"
default y
- depends on WIRELESS_EXT && SYSFS
+ depends on WEXT_CORE && SYSFS
help
This option enables the deprecated wireless statistics
files in /sys/class/net/*/wireless/. The same information
--- wireless-testing.orig/include/net/net_namespace.h 2009-09-25 11:12:26.000000000 +0200
+++ wireless-testing/include/net/net_namespace.h 2009-09-25 11:12:26.000000000 +0200
@@ -80,7 +80,7 @@ struct net {
#ifdef CONFIG_XFRM
struct netns_xfrm xfrm;
#endif
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_WEXT_CORE
struct sk_buff_head wext_nlevents;
#endif
struct net_generic *gen;
--- wireless-testing.orig/include/net/cfg80211.h 2009-09-25 11:12:26.000000000 +0200
+++ wireless-testing/include/net/cfg80211.h 2009-09-25 11:48:24.000000000 +0200
@@ -1171,6 +1171,10 @@ struct wiphy {
struct net *_net;
#endif
+#ifdef CONFIG_CFG80211_WEXT
+ const struct iw_handler_def *wext;
+#endif
+
char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
};
@@ -1345,7 +1349,7 @@ struct wireless_dev {
struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
struct cfg80211_internal_bss *current_bss; /* associated / joined */
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
/* wext data */
struct {
struct cfg80211_ibss_params ibss;
--- wireless-testing.orig/net/wireless/Makefile 2009-09-25 11:12:25.000000000 +0200
+++ wireless-testing/net/wireless/Makefile 2009-09-25 11:55:26.000000000 +0200
@@ -1,13 +1,17 @@
-obj-$(CONFIG_WIRELESS_EXT) += wext.o
obj-$(CONFIG_CFG80211) += cfg80211.o
obj-$(CONFIG_LIB80211) += lib80211.o
obj-$(CONFIG_LIB80211_CRYPT_WEP) += lib80211_crypt_wep.o
obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o
obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o
+obj-$(CONFIG_WEXT_CORE) += wext-core.o
+obj-$(CONFIG_WEXT_PROC) += wext-proc.o
+obj-$(CONFIG_WEXT_SPY) += wext-spy.o
+obj-$(CONFIG_WEXT_PRIV) += wext-priv.o
+
cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o
cfg80211-y += mlme.o ibss.o sme.o chan.o
cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o
-cfg80211-$(CONFIG_WIRELESS_EXT) += wext-compat.o wext-sme.o
+cfg80211-$(CONFIG_CFG80211_WEXT) += wext-compat.o wext-sme.o
ccflags-y += -D__CHECK_ENDIAN__
--- wireless-testing.orig/net/wireless/core.c 2009-09-25 11:12:25.000000000 +0200
+++ wireless-testing/net/wireless/core.c 2009-09-25 11:12:26.000000000 +0200
@@ -358,6 +358,10 @@ struct wiphy *wiphy_new(const struct cfg
INIT_LIST_HEAD(&rdev->bss_list);
INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done);
+#ifdef CONFIG_CFG80211_WEXT
+ rdev->wiphy.wext = &cfg80211_wext_handler;
+#endif
+
device_initialize(&rdev->wiphy.dev);
rdev->wiphy.dev.class = &ieee80211_class;
rdev->wiphy.dev.platform_data = rdev;
@@ -665,9 +669,7 @@ static int cfg80211_netdev_notifier_call
wdev->netdev = dev;
wdev->sme_state = CFG80211_SME_IDLE;
mutex_unlock(&rdev->devlist_mtx);
-#ifdef CONFIG_WIRELESS_EXT
- if (!dev->wireless_handlers)
- dev->wireless_handlers = &cfg80211_wext_handler;
+#ifdef CONFIG_CFG80211_WEXT
wdev->wext.default_key = -1;
wdev->wext.default_mgmt_key = -1;
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
@@ -689,7 +691,7 @@ static int cfg80211_netdev_notifier_call
break;
case NL80211_IFTYPE_STATION:
wdev_lock(wdev);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
kfree(wdev->wext.ie);
wdev->wext.ie = NULL;
wdev->wext.ie_len = 0;
@@ -721,7 +723,7 @@ static int cfg80211_netdev_notifier_call
mutex_unlock(&rdev->devlist_mtx);
dev_put(dev);
}
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
cfg80211_lock_rdev(rdev);
mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
@@ -759,7 +761,7 @@ static int cfg80211_netdev_notifier_call
sysfs_remove_link(&dev->dev.kobj, "phy80211");
list_del_init(&wdev->list);
rdev->devlist_generation++;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
kfree(wdev->wext.keys);
#endif
}
--- wireless-testing.orig/net/wireless/ibss.c 2009-09-25 11:12:25.000000000 +0200
+++ wireless-testing/net/wireless/ibss.c 2009-09-25 11:12:26.000000000 +0200
@@ -15,7 +15,7 @@ void __cfg80211_ibss_joined(struct net_d
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_bss *bss;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -44,7 +44,7 @@ void __cfg80211_ibss_joined(struct net_d
nl80211_send_ibss_bssid(wiphy_to_dev(wdev->wiphy), dev, bssid,
GFP_KERNEL);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
memset(&wrqu, 0, sizeof(wrqu));
memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
@@ -96,7 +96,7 @@ int __cfg80211_join_ibss(struct cfg80211
kfree(wdev->connect_keys);
wdev->connect_keys = connkeys;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
wdev->wext.ibss.channel = params->channel;
#endif
err = rdev->ops->join_ibss(&rdev->wiphy, dev, params);
@@ -154,7 +154,7 @@ static void __cfg80211_clear_ibss(struct
wdev->current_bss = NULL;
wdev->ssid_len = 0;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (!nowext)
wdev->wext.ibss.ssid_len = 0;
#endif
@@ -203,7 +203,7 @@ int cfg80211_leave_ibss(struct cfg80211_
return err;
}
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev)
{
--- wireless-testing.orig/net/wireless/mlme.c 2009-09-25 11:12:24.000000000 +0200
+++ wireless-testing/net/wireless/mlme.c 2009-09-25 11:12:26.000000000 +0200
@@ -331,7 +331,7 @@ void cfg80211_michael_mic_failure(struct
{
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
char *buf = kmalloc(128, gfp);
--- wireless-testing.orig/net/wireless/nl80211.c 2009-09-25 11:12:25.000000000 +0200
+++ wireless-testing/net/wireless/nl80211.c 2009-09-25 11:12:26.000000000 +0200
@@ -1264,7 +1264,7 @@ static int nl80211_set_key(struct sk_buf
if (!err)
err = func(&rdev->wiphy, dev, key.idx);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (!err) {
if (func == rdev->ops->set_default_key)
dev->ieee80211_ptr->wext.default_key = key.idx;
@@ -1365,7 +1365,7 @@ static int nl80211_del_key(struct sk_buf
if (!err)
err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (!err) {
if (key.idx == dev->ieee80211_ptr->wext.default_key)
dev->ieee80211_ptr->wext.default_key = -1;
--- wireless-testing.orig/net/wireless/scan.c 2009-09-25 11:12:25.000000000 +0200
+++ wireless-testing/net/wireless/scan.c 2009-09-25 11:12:26.000000000 +0200
@@ -22,7 +22,7 @@ void ___cfg80211_scan_done(struct cfg802
{
struct cfg80211_scan_request *request;
struct net_device *dev;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -47,7 +47,7 @@ void ___cfg80211_scan_done(struct cfg802
else
nl80211_send_scan_done(rdev, dev);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (!request->aborted) {
memset(&wrqu, 0, sizeof(wrqu));
@@ -592,7 +592,7 @@ void cfg80211_unlink_bss(struct wiphy *w
}
EXPORT_SYMBOL(cfg80211_unlink_bss);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
int cfg80211_wext_siwscan(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
--- wireless-testing.orig/net/wireless/sme.c 2009-09-25 11:12:25.000000000 +0200
+++ wireless-testing/net/wireless/sme.c 2009-09-25 11:12:26.000000000 +0200
@@ -345,7 +345,7 @@ void __cfg80211_connect_result(struct ne
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
u8 *country_ie;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -362,7 +362,7 @@ void __cfg80211_connect_result(struct ne
resp_ie, resp_ie_len,
status, GFP_KERNEL);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (wextev) {
if (req_ie && status == WLAN_STATUS_SUCCESS) {
memset(&wrqu, 0, sizeof(wrqu));
@@ -477,7 +477,7 @@ void __cfg80211_roamed(struct wireless_d
const u8 *resp_ie, size_t resp_ie_len)
{
struct cfg80211_bss *bss;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -512,7 +512,7 @@ void __cfg80211_roamed(struct wireless_d
req_ie, req_ie_len, resp_ie, resp_ie_len,
GFP_KERNEL);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (req_ie) {
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = req_ie_len;
@@ -573,7 +573,7 @@ void __cfg80211_disconnected(struct net_
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
int i;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -631,7 +631,7 @@ void __cfg80211_disconnected(struct net_
for (i = 0; i < 6; i++)
rdev->ops->del_key(wdev->wiphy, dev, i, NULL);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
memset(&wrqu, 0, sizeof(wrqu));
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
--- wireless-testing.orig/net/socket.c 2009-09-25 11:12:24.000000000 +0200
+++ wireless-testing/net/socket.c 2009-09-25 11:12:26.000000000 +0200
@@ -905,11 +905,11 @@ static long sock_ioctl(struct file *file
if (cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) {
err = dev_ioctl(net, cmd, argp);
} else
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_WEXT_CORE
if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) {
err = dev_ioctl(net, cmd, argp);
} else
-#endif /* CONFIG_WIRELESS_EXT */
+#endif
switch (cmd) {
case FIOSETOWN:
case SIOCSPGRP:
--- wireless-testing.orig/net/wireless/wext.c 2009-09-25 11:12:25.000000000 +0200
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,1772 +0,0 @@
-/*
- * This file implement the Wireless Extensions APIs.
- *
- * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
- * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
- *
- * (As all part of the Linux kernel, this file is GPL)
- */
-
-/************************** DOCUMENTATION **************************/
-/*
- * API definition :
- * --------------
- * See <linux/wireless.h> for details of the APIs and the rest.
- *
- * History :
- * -------
- *
- * v1 - 5.12.01 - Jean II
- * o Created this file.
- *
- * v2 - 13.12.01 - Jean II
- * o Move /proc/net/wireless stuff from net/core/dev.c to here
- * o Make Wireless Extension IOCTLs go through here
- * o Added iw_handler handling ;-)
- * o Added standard ioctl description
- * o Initial dumb commit strategy based on orinoco.c
- *
- * v3 - 19.12.01 - Jean II
- * o Make sure we don't go out of standard_ioctl[] in ioctl_standard_call
- * o Add event dispatcher function
- * o Add event description
- * o Propagate events as rtnetlink IFLA_WIRELESS option
- * o Generate event on selected SET requests
- *
- * v4 - 18.04.02 - Jean II
- * o Fix stupid off by one in iw_ioctl_description : IW_ESSID_MAX_SIZE + 1
- *
- * v5 - 21.06.02 - Jean II
- * o Add IW_PRIV_TYPE_ADDR in priv_type_size (+cleanup)
- * o Reshuffle IW_HEADER_TYPE_XXX to map IW_PRIV_TYPE_XXX changes
- * o Add IWEVCUSTOM for driver specific event/scanning token
- * o Turn on WE_STRICT_WRITE by default + kernel warning
- * o Fix WE_STRICT_WRITE in ioctl_export_private() (32 => iw_num)
- * o Fix off-by-one in test (extra_size <= IFNAMSIZ)
- *
- * v6 - 9.01.03 - Jean II
- * o Add common spy support : iw_handler_set_spy(), wireless_spy_update()
- * o Add enhanced spy support : iw_handler_set_thrspy() and event.
- * o Add WIRELESS_EXT version display in /proc/net/wireless
- *
- * v6 - 18.06.04 - Jean II
- * o Change get_spydata() method for added safety
- * o Remove spy #ifdef, they are always on -> cleaner code
- * o Allow any size GET request if user specifies length > max
- * and if request has IW_DESCR_FLAG_NOMAX flag or is SIOCGIWPRIV
- * o Start migrating get_wireless_stats to struct iw_handler_def
- * o Add wmb() in iw_handler_set_spy() for non-coherent archs/cpus
- * Based on patch from Pavel Roskin <proski@gnu.org> :
- * o Fix kernel data leak to user space in private handler handling
- *
- * v7 - 18.3.05 - Jean II
- * o Remove (struct iw_point *)->pointer from events and streams
- * o Remove spy_offset from struct iw_handler_def
- * o Start deprecating dev->get_wireless_stats, output a warning
- * o If IW_QUAL_DBM is set, show dBm values in /proc/net/wireless
- * o Don't lose INVALID/DBM flags when clearing UPDATED flags (iwstats)
- *
- * v8 - 17.02.06 - Jean II
- * o RtNetlink requests support (SET/GET)
- *
- * v8b - 03.08.06 - Herbert Xu
- * o Fix Wireless Event locking issues.
- *
- * v9 - 14.3.06 - Jean II
- * o Change length in ESSID and NICK to strlen() instead of strlen()+1
- * o Make standard_ioctl_num and standard_event_num unsigned
- * o Remove (struct net_device *)->get_wireless_stats()
- *
- * v10 - 16.3.07 - Jean II
- * o Prevent leaking of kernel space in stream on 64 bits.
- */
-
-/***************************** INCLUDES *****************************/
-
-#include <linux/module.h>
-#include <linux/types.h> /* off_t */
-#include <linux/netdevice.h> /* struct ifreq, dev_get_by_name() */
-#include <linux/proc_fs.h>
-#include <linux/rtnetlink.h> /* rtnetlink stuff */
-#include <linux/seq_file.h>
-#include <linux/init.h> /* for __init */
-#include <linux/if_arp.h> /* ARPHRD_ETHER */
-#include <linux/etherdevice.h> /* compare_ether_addr */
-#include <linux/interrupt.h>
-#include <net/net_namespace.h>
-
-#include <linux/wireless.h> /* Pretty obvious */
-#include <net/iw_handler.h> /* New driver API */
-#include <net/netlink.h>
-#include <net/wext.h>
-
-#include <asm/uaccess.h> /* copy_to_user() */
-
-/************************* GLOBAL VARIABLES *************************/
-/*
- * You should not use global variables, because of re-entrancy.
- * On our case, it's only const, so it's OK...
- */
-/*
- * Meta-data about all the standard Wireless Extension request we
- * know about.
- */
-static const struct iw_ioctl_description standard_ioctl[] = {
- [SIOCSIWCOMMIT - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWNAME - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_CHAR,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWNWID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWNWID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWFREQ - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_FREQ,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWFREQ - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_FREQ,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWMODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_UINT,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWMODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_UINT,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWSENS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWSENS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWRANGE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWRANGE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_range),
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWPRIV - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWPRIV - SIOCIWFIRST] = { /* (handled directly by us) */
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct iw_priv_args),
- .max_tokens = 16,
- .flags = IW_DESCR_FLAG_NOMAX,
- },
- [SIOCSIWSTATS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWSTATS - SIOCIWFIRST] = { /* (handled directly by us) */
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_statistics),
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct sockaddr),
- .max_tokens = IW_MAX_SPY,
- },
- [SIOCGIWSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct sockaddr) +
- sizeof(struct iw_quality),
- .max_tokens = IW_MAX_SPY,
- },
- [SIOCSIWTHRSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct iw_thrspy),
- .min_tokens = 1,
- .max_tokens = 1,
- },
- [SIOCGIWTHRSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct iw_thrspy),
- .min_tokens = 1,
- .max_tokens = 1,
- },
- [SIOCSIWAP - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [SIOCGIWAP - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWMLME - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_mlme),
- .max_tokens = sizeof(struct iw_mlme),
- },
- [SIOCGIWAPLIST - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct sockaddr) +
- sizeof(struct iw_quality),
- .max_tokens = IW_MAX_AP,
- .flags = IW_DESCR_FLAG_NOMAX,
- },
- [SIOCSIWSCAN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = 0,
- .max_tokens = sizeof(struct iw_scan_req),
- },
- [SIOCGIWSCAN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_SCAN_MAX_DATA,
- .flags = IW_DESCR_FLAG_NOMAX,
- },
- [SIOCSIWESSID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWESSID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWNICKN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- },
- [SIOCGIWNICKN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- },
- [SIOCSIWRATE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWRATE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWRTS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWRTS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWFRAG - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWFRAG - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWTXPOW - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWTXPOW - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWRETRY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWRETRY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWENCODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ENCODING_TOKEN_MAX,
- .flags = IW_DESCR_FLAG_EVENT | IW_DESCR_FLAG_RESTRICT,
- },
- [SIOCGIWENCODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ENCODING_TOKEN_MAX,
- .flags = IW_DESCR_FLAG_DUMP | IW_DESCR_FLAG_RESTRICT,
- },
- [SIOCSIWPOWER - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWPOWER - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWGENIE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [SIOCGIWGENIE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [SIOCSIWAUTH - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWAUTH - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWENCODEEXT - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_encode_ext),
- .max_tokens = sizeof(struct iw_encode_ext) +
- IW_ENCODING_TOKEN_MAX,
- },
- [SIOCGIWENCODEEXT - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_encode_ext),
- .max_tokens = sizeof(struct iw_encode_ext) +
- IW_ENCODING_TOKEN_MAX,
- },
- [SIOCSIWPMKSA - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_pmksa),
- .max_tokens = sizeof(struct iw_pmksa),
- },
-};
-static const unsigned standard_ioctl_num = ARRAY_SIZE(standard_ioctl);
-
-/*
- * Meta-data about all the additional standard Wireless Extension events
- * we know about.
- */
-static const struct iw_ioctl_description standard_event[] = {
- [IWEVTXDROP - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [IWEVQUAL - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_QUAL,
- },
- [IWEVCUSTOM - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_CUSTOM_MAX,
- },
- [IWEVREGISTERED - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [IWEVEXPIRED - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [IWEVGENIE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [IWEVMICHAELMICFAILURE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_michaelmicfailure),
- },
- [IWEVASSOCREQIE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [IWEVASSOCRESPIE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [IWEVPMKIDCAND - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_pmkid_cand),
- },
-};
-static const unsigned standard_event_num = ARRAY_SIZE(standard_event);
-
-/* Size (in bytes) of the various private data types */
-static const char iw_priv_type_size[] = {
- 0, /* IW_PRIV_TYPE_NONE */
- 1, /* IW_PRIV_TYPE_BYTE */
- 1, /* IW_PRIV_TYPE_CHAR */
- 0, /* Not defined */
- sizeof(__u32), /* IW_PRIV_TYPE_INT */
- sizeof(struct iw_freq), /* IW_PRIV_TYPE_FLOAT */
- sizeof(struct sockaddr), /* IW_PRIV_TYPE_ADDR */
- 0, /* Not defined */
-};
-
-/* Size (in bytes) of various events */
-static const int event_type_size[] = {
- IW_EV_LCP_LEN, /* IW_HEADER_TYPE_NULL */
- 0,
- IW_EV_CHAR_LEN, /* IW_HEADER_TYPE_CHAR */
- 0,
- IW_EV_UINT_LEN, /* IW_HEADER_TYPE_UINT */
- IW_EV_FREQ_LEN, /* IW_HEADER_TYPE_FREQ */
- IW_EV_ADDR_LEN, /* IW_HEADER_TYPE_ADDR */
- 0,
- IW_EV_POINT_LEN, /* Without variable payload */
- IW_EV_PARAM_LEN, /* IW_HEADER_TYPE_PARAM */
- IW_EV_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */
-};
-
-#ifdef CONFIG_COMPAT
-static const int compat_event_type_size[] = {
- IW_EV_COMPAT_LCP_LEN, /* IW_HEADER_TYPE_NULL */
- 0,
- IW_EV_COMPAT_CHAR_LEN, /* IW_HEADER_TYPE_CHAR */
- 0,
- IW_EV_COMPAT_UINT_LEN, /* IW_HEADER_TYPE_UINT */
- IW_EV_COMPAT_FREQ_LEN, /* IW_HEADER_TYPE_FREQ */
- IW_EV_COMPAT_ADDR_LEN, /* IW_HEADER_TYPE_ADDR */
- 0,
- IW_EV_COMPAT_POINT_LEN, /* Without variable payload */
- IW_EV_COMPAT_PARAM_LEN, /* IW_HEADER_TYPE_PARAM */
- IW_EV_COMPAT_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */
-};
-#endif
-
-/************************ COMMON SUBROUTINES ************************/
-/*
- * Stuff that may be used in various place or doesn't fit in one
- * of the section below.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Return the driver handler associated with a specific Wireless Extension.
- */
-static iw_handler get_handler(struct net_device *dev, unsigned int cmd)
-{
- /* Don't "optimise" the following variable, it will crash */
- unsigned int index; /* *MUST* be unsigned */
-
- /* Check if we have some wireless handlers defined */
- if (dev->wireless_handlers == NULL)
- return NULL;
-
- /* Try as a standard command */
- index = cmd - SIOCIWFIRST;
- if (index < dev->wireless_handlers->num_standard)
- return dev->wireless_handlers->standard[index];
-
- /* Try as a private command */
- index = cmd - SIOCIWFIRSTPRIV;
- if (index < dev->wireless_handlers->num_private)
- return dev->wireless_handlers->private[index];
-
- /* Not found */
- return NULL;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Get statistics out of the driver
- */
-static struct iw_statistics *get_wireless_stats(struct net_device *dev)
-{
- /* New location */
- if ((dev->wireless_handlers != NULL) &&
- (dev->wireless_handlers->get_wireless_stats != NULL))
- return dev->wireless_handlers->get_wireless_stats(dev);
-
- /* Not found */
- return NULL;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Call the commit handler in the driver
- * (if exist and if conditions are right)
- *
- * Note : our current commit strategy is currently pretty dumb,
- * but we will be able to improve on that...
- * The goal is to try to agreagate as many changes as possible
- * before doing the commit. Drivers that will define a commit handler
- * are usually those that need a reset after changing parameters, so
- * we want to minimise the number of reset.
- * A cool idea is to use a timer : at each "set" command, we re-set the
- * timer, when the timer eventually fires, we call the driver.
- * Hopefully, more on that later.
- *
- * Also, I'm waiting to see how many people will complain about the
- * netif_running(dev) test. I'm open on that one...
- * Hopefully, the driver will remember to do a commit in "open()" ;-)
- */
-static int call_commit_handler(struct net_device *dev)
-{
- if ((netif_running(dev)) &&
- (dev->wireless_handlers->standard[0] != NULL))
- /* Call the commit handler on the driver */
- return dev->wireless_handlers->standard[0](dev, NULL,
- NULL, NULL);
- else
- return 0; /* Command completed successfully */
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Calculate size of private arguments
- */
-static int get_priv_size(__u16 args)
-{
- int num = args & IW_PRIV_SIZE_MASK;
- int type = (args & IW_PRIV_TYPE_MASK) >> 12;
-
- return num * iw_priv_type_size[type];
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Re-calculate the size of private arguments
- */
-static int adjust_priv_size(__u16 args, struct iw_point *iwp)
-{
- int num = iwp->length;
- int max = args & IW_PRIV_SIZE_MASK;
- int type = (args & IW_PRIV_TYPE_MASK) >> 12;
-
- /* Make sure the driver doesn't goof up */
- if (max < num)
- num = max;
-
- return num * iw_priv_type_size[type];
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Standard Wireless Handler : get wireless stats
- * Allow programatic access to /proc/net/wireless even if /proc
- * doesn't exist... Also more efficient...
- */
-static int iw_handler_get_iwstats(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- /* Get stats from the driver */
- struct iw_statistics *stats;
-
- stats = get_wireless_stats(dev);
- if (stats) {
- /* Copy statistics to extra */
- memcpy(extra, stats, sizeof(struct iw_statistics));
- wrqu->data.length = sizeof(struct iw_statistics);
-
- /* Check if we need to clear the updated flag */
- if (wrqu->data.flags != 0)
- stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
- return 0;
- } else
- return -EOPNOTSUPP;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Standard Wireless Handler : get iwpriv definitions
- * Export the driver private handler definition
- * They will be picked up by tools like iwpriv...
- */
-static int iw_handler_get_private(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- /* Check if the driver has something to export */
- if ((dev->wireless_handlers->num_private_args == 0) ||
- (dev->wireless_handlers->private_args == NULL))
- return -EOPNOTSUPP;
-
- /* Check if there is enough buffer up there */
- if (wrqu->data.length < dev->wireless_handlers->num_private_args) {
- /* User space can't know in advance how large the buffer
- * needs to be. Give it a hint, so that we can support
- * any size buffer we want somewhat efficiently... */
- wrqu->data.length = dev->wireless_handlers->num_private_args;
- return -E2BIG;
- }
-
- /* Set the number of available ioctls. */
- wrqu->data.length = dev->wireless_handlers->num_private_args;
-
- /* Copy structure to the user buffer. */
- memcpy(extra, dev->wireless_handlers->private_args,
- sizeof(struct iw_priv_args) * wrqu->data.length);
-
- return 0;
-}
-
-
-/******************** /proc/net/wireless SUPPORT ********************/
-/*
- * The /proc/net/wireless file is a human readable user-space interface
- * exporting various wireless specific statistics from the wireless devices.
- * This is the most popular part of the Wireless Extensions ;-)
- *
- * This interface is a pure clone of /proc/net/dev (in net/core/dev.c).
- * The content of the file is basically the content of "struct iw_statistics".
- */
-
-#ifdef CONFIG_PROC_FS
-
-/* ---------------------------------------------------------------- */
-/*
- * Print one entry (line) of /proc/net/wireless
- */
-static void wireless_seq_printf_stats(struct seq_file *seq,
- struct net_device *dev)
-{
- /* Get stats from the driver */
- struct iw_statistics *stats = get_wireless_stats(dev);
- static struct iw_statistics nullstats = {};
-
- /* show device if it's wireless regardless of current stats */
- if (!stats && dev->wireless_handlers)
- stats = &nullstats;
-
- if (stats) {
- seq_printf(seq, "%6s: %04x %3d%c %3d%c %3d%c %6d %6d %6d "
- "%6d %6d %6d\n",
- dev->name, stats->status, stats->qual.qual,
- stats->qual.updated & IW_QUAL_QUAL_UPDATED
- ? '.' : ' ',
- ((__s32) stats->qual.level) -
- ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
- stats->qual.updated & IW_QUAL_LEVEL_UPDATED
- ? '.' : ' ',
- ((__s32) stats->qual.noise) -
- ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
- stats->qual.updated & IW_QUAL_NOISE_UPDATED
- ? '.' : ' ',
- stats->discard.nwid, stats->discard.code,
- stats->discard.fragment, stats->discard.retries,
- stats->discard.misc, stats->miss.beacon);
-
- if (stats != &nullstats)
- stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
- }
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Print info for /proc/net/wireless (print all entries)
- */
-static int wireless_dev_seq_show(struct seq_file *seq, void *v)
-{
- might_sleep();
-
- if (v == SEQ_START_TOKEN)
- seq_printf(seq, "Inter-| sta-| Quality | Discarded "
- "packets | Missed | WE\n"
- " face | tus | link level noise | nwid "
- "crypt frag retry misc | beacon | %d\n",
- WIRELESS_EXT);
- else
- wireless_seq_printf_stats(seq, v);
- return 0;
-}
-
-static void *wireless_dev_seq_start(struct seq_file *seq, loff_t *pos)
-{
- struct net *net = seq_file_net(seq);
- loff_t off;
- struct net_device *dev;
-
- rtnl_lock();
- if (!*pos)
- return SEQ_START_TOKEN;
-
- off = 1;
- for_each_netdev(net, dev)
- if (off++ == *pos)
- return dev;
- return NULL;
-}
-
-static void *wireless_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- struct net *net = seq_file_net(seq);
-
- ++*pos;
-
- return v == SEQ_START_TOKEN ?
- first_net_device(net) : next_net_device(v);
-}
-
-static void wireless_dev_seq_stop(struct seq_file *seq, void *v)
-{
- rtnl_unlock();
-}
-
-static const struct seq_operations wireless_seq_ops = {
- .start = wireless_dev_seq_start,
- .next = wireless_dev_seq_next,
- .stop = wireless_dev_seq_stop,
- .show = wireless_dev_seq_show,
-};
-
-static int seq_open_wireless(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &wireless_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations wireless_seq_fops = {
- .owner = THIS_MODULE,
- .open = seq_open_wireless,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
-int wext_proc_init(struct net *net)
-{
- /* Create /proc/net/wireless entry */
- if (!proc_net_fops_create(net, "wireless", S_IRUGO, &wireless_seq_fops))
- return -ENOMEM;
-
- return 0;
-}
-
-void wext_proc_exit(struct net *net)
-{
- proc_net_remove(net, "wireless");
-}
-#endif /* CONFIG_PROC_FS */
-
-/************************** IOCTL SUPPORT **************************/
-/*
- * The original user space API to configure all those Wireless Extensions
- * is through IOCTLs.
- * In there, we check if we need to call the new driver API (iw_handler)
- * or just call the driver ioctl handler.
- */
-
-/* ---------------------------------------------------------------- */
-static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
- const struct iw_ioctl_description *descr,
- iw_handler handler, struct net_device *dev,
- struct iw_request_info *info)
-{
- int err, extra_size, user_length = 0, essid_compat = 0;
- char *extra;
-
- /* Calculate space needed by arguments. Always allocate
- * for max space.
- */
- extra_size = descr->max_tokens * descr->token_size;
-
- /* Check need for ESSID compatibility for WE < 21 */
- switch (cmd) {
- case SIOCSIWESSID:
- case SIOCGIWESSID:
- case SIOCSIWNICKN:
- case SIOCGIWNICKN:
- if (iwp->length == descr->max_tokens + 1)
- essid_compat = 1;
- else if (IW_IS_SET(cmd) && (iwp->length != 0)) {
- char essid[IW_ESSID_MAX_SIZE + 1];
-
- err = copy_from_user(essid, iwp->pointer,
- iwp->length *
- descr->token_size);
- if (err)
- return -EFAULT;
-
- if (essid[iwp->length - 1] == '\0')
- essid_compat = 1;
- }
- break;
- default:
- break;
- }
-
- iwp->length -= essid_compat;
-
- /* Check what user space is giving us */
- if (IW_IS_SET(cmd)) {
- /* Check NULL pointer */
- if (!iwp->pointer && iwp->length != 0)
- return -EFAULT;
- /* Check if number of token fits within bounds */
- if (iwp->length > descr->max_tokens)
- return -E2BIG;
- if (iwp->length < descr->min_tokens)
- return -EINVAL;
- } else {
- /* Check NULL pointer */
- if (!iwp->pointer)
- return -EFAULT;
- /* Save user space buffer size for checking */
- user_length = iwp->length;
-
- /* Don't check if user_length > max to allow forward
- * compatibility. The test user_length < min is
- * implied by the test at the end.
- */
-
- /* Support for very large requests */
- if ((descr->flags & IW_DESCR_FLAG_NOMAX) &&
- (user_length > descr->max_tokens)) {
- /* Allow userspace to GET more than max so
- * we can support any size GET requests.
- * There is still a limit : -ENOMEM.
- */
- extra_size = user_length * descr->token_size;
-
- /* Note : user_length is originally a __u16,
- * and token_size is controlled by us,
- * so extra_size won't get negative and
- * won't overflow...
- */
- }
- }
-
- /* kzalloc() ensures NULL-termination for essid_compat. */
- extra = kzalloc(extra_size, GFP_KERNEL);
- if (!extra)
- return -ENOMEM;
-
- /* If it is a SET, get all the extra data in here */
- if (IW_IS_SET(cmd) && (iwp->length != 0)) {
- if (copy_from_user(extra, iwp->pointer,
- iwp->length *
- descr->token_size)) {
- err = -EFAULT;
- goto out;
- }
-
- if (cmd == SIOCSIWENCODEEXT) {
- struct iw_encode_ext *ee = (void *) extra;
-
- if (iwp->length < sizeof(*ee) + ee->key_len)
- return -EFAULT;
- }
- }
-
- err = handler(dev, info, (union iwreq_data *) iwp, extra);
-
- iwp->length += essid_compat;
-
- /* If we have something to return to the user */
- if (!err && IW_IS_GET(cmd)) {
- /* Check if there is enough buffer up there */
- if (user_length < iwp->length) {
- err = -E2BIG;
- goto out;
- }
-
- if (copy_to_user(iwp->pointer, extra,
- iwp->length *
- descr->token_size)) {
- err = -EFAULT;
- goto out;
- }
- }
-
- /* Generate an event to notify listeners of the change */
- if ((descr->flags & IW_DESCR_FLAG_EVENT) && err == -EIWCOMMIT) {
- union iwreq_data *data = (union iwreq_data *) iwp;
-
- if (descr->flags & IW_DESCR_FLAG_RESTRICT)
- /* If the event is restricted, don't
- * export the payload.
- */
- wireless_send_event(dev, cmd, data, NULL);
- else
- wireless_send_event(dev, cmd, data, extra);
- }
-
-out:
- kfree(extra);
- return err;
-}
-
-/*
- * Wrapper to call a standard Wireless Extension handler.
- * We do various checks and also take care of moving data between
- * user space and kernel space.
- */
-static int ioctl_standard_call(struct net_device * dev,
- struct iwreq *iwr,
- unsigned int cmd,
- struct iw_request_info *info,
- iw_handler handler)
-{
- const struct iw_ioctl_description * descr;
- int ret = -EINVAL;
-
- /* Get the description of the IOCTL */
- if ((cmd - SIOCIWFIRST) >= standard_ioctl_num)
- return -EOPNOTSUPP;
- descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
-
- /* Check if we have a pointer to user space data or not */
- if (descr->header_type != IW_HEADER_TYPE_POINT) {
-
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, info, &(iwr->u), NULL);
-
- /* Generate an event to notify listeners of the change */
- if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
- ((ret == 0) || (ret == -EIWCOMMIT)))
- wireless_send_event(dev, cmd, &(iwr->u), NULL);
- } else {
- ret = ioctl_standard_iw_point(&iwr->u.data, cmd, descr,
- handler, dev, info);
- }
-
- /* Call commit handler if needed and defined */
- if (ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- /* Here, we will generate the appropriate event if needed */
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a private Wireless Extension handler.
- * We do various checks and also take care of moving data between
- * user space and kernel space.
- * It's not as nice and slimline as the standard wrapper. The cause
- * is struct iw_priv_args, which was not really designed for the
- * job we are going here.
- *
- * IMPORTANT : This function prevent to set and get data on the same
- * IOCTL and enforce the SET/GET convention. Not doing it would be
- * far too hairy...
- * If you need to set and get data at the same time, please don't use
- * a iw_handler but process it in your ioctl handler (i.e. use the
- * old driver API).
- */
-static int get_priv_descr_and_size(struct net_device *dev, unsigned int cmd,
- const struct iw_priv_args **descrp)
-{
- const struct iw_priv_args *descr;
- int i, extra_size;
-
- descr = NULL;
- for (i = 0; i < dev->wireless_handlers->num_private_args; i++) {
- if (cmd == dev->wireless_handlers->private_args[i].cmd) {
- descr = &dev->wireless_handlers->private_args[i];
- break;
- }
- }
-
- extra_size = 0;
- if (descr) {
- if (IW_IS_SET(cmd)) {
- int offset = 0; /* For sub-ioctls */
- /* Check for sub-ioctl handler */
- if (descr->name[0] == '\0')
- /* Reserve one int for sub-ioctl index */
- offset = sizeof(__u32);
-
- /* Size of set arguments */
- extra_size = get_priv_size(descr->set_args);
-
- /* Does it fits in iwr ? */
- if ((descr->set_args & IW_PRIV_SIZE_FIXED) &&
- ((extra_size + offset) <= IFNAMSIZ))
- extra_size = 0;
- } else {
- /* Size of get arguments */
- extra_size = get_priv_size(descr->get_args);
-
- /* Does it fits in iwr ? */
- if ((descr->get_args & IW_PRIV_SIZE_FIXED) &&
- (extra_size <= IFNAMSIZ))
- extra_size = 0;
- }
- }
- *descrp = descr;
- return extra_size;
-}
-
-static int ioctl_private_iw_point(struct iw_point *iwp, unsigned int cmd,
- const struct iw_priv_args *descr,
- iw_handler handler, struct net_device *dev,
- struct iw_request_info *info, int extra_size)
-{
- char *extra;
- int err;
-
- /* Check what user space is giving us */
- if (IW_IS_SET(cmd)) {
- if (!iwp->pointer && iwp->length != 0)
- return -EFAULT;
-
- if (iwp->length > (descr->set_args & IW_PRIV_SIZE_MASK))
- return -E2BIG;
- } else if (!iwp->pointer)
- return -EFAULT;
-
- extra = kmalloc(extra_size, GFP_KERNEL);
- if (!extra)
- return -ENOMEM;
-
- /* If it is a SET, get all the extra data in here */
- if (IW_IS_SET(cmd) && (iwp->length != 0)) {
- if (copy_from_user(extra, iwp->pointer, extra_size)) {
- err = -EFAULT;
- goto out;
- }
- }
-
- /* Call the handler */
- err = handler(dev, info, (union iwreq_data *) iwp, extra);
-
- /* If we have something to return to the user */
- if (!err && IW_IS_GET(cmd)) {
- /* Adjust for the actual length if it's variable,
- * avoid leaking kernel bits outside.
- */
- if (!(descr->get_args & IW_PRIV_SIZE_FIXED))
- extra_size = adjust_priv_size(descr->get_args, iwp);
-
- if (copy_to_user(iwp->pointer, extra, extra_size))
- err = -EFAULT;
- }
-
-out:
- kfree(extra);
- return err;
-}
-
-static int ioctl_private_call(struct net_device *dev, struct iwreq *iwr,
- unsigned int cmd, struct iw_request_info *info,
- iw_handler handler)
-{
- int extra_size = 0, ret = -EINVAL;
- const struct iw_priv_args *descr;
-
- extra_size = get_priv_descr_and_size(dev, cmd, &descr);
-
- /* Check if we have a pointer to user space data or not. */
- if (extra_size == 0) {
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, info, &(iwr->u), (char *) &(iwr->u));
- } else {
- ret = ioctl_private_iw_point(&iwr->u.data, cmd, descr,
- handler, dev, info, extra_size);
- }
-
- /* Call commit handler if needed and defined */
- if (ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-typedef int (*wext_ioctl_func)(struct net_device *, struct iwreq *,
- unsigned int, struct iw_request_info *,
- iw_handler);
-
-/*
- * Main IOCTl dispatcher.
- * Check the type of IOCTL and call the appropriate wrapper...
- */
-static int wireless_process_ioctl(struct net *net, struct ifreq *ifr,
- unsigned int cmd,
- struct iw_request_info *info,
- wext_ioctl_func standard,
- wext_ioctl_func private)
-{
- struct iwreq *iwr = (struct iwreq *) ifr;
- struct net_device *dev;
- iw_handler handler;
-
- /* Permissions are already checked in dev_ioctl() before calling us.
- * The copy_to/from_user() of ifr is also dealt with in there */
-
- /* Make sure the device exist */
- if ((dev = __dev_get_by_name(net, ifr->ifr_name)) == NULL)
- return -ENODEV;
-
- /* A bunch of special cases, then the generic case...
- * Note that 'cmd' is already filtered in dev_ioctl() with
- * (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) */
- if (cmd == SIOCGIWSTATS)
- return standard(dev, iwr, cmd, info,
- &iw_handler_get_iwstats);
-
- if (cmd == SIOCGIWPRIV && dev->wireless_handlers)
- return standard(dev, iwr, cmd, info,
- &iw_handler_get_private);
-
- /* Basic check */
- if (!netif_device_present(dev))
- return -ENODEV;
-
- /* New driver API : try to find the handler */
- handler = get_handler(dev, cmd);
- if (handler) {
- /* Standard and private are not the same */
- if (cmd < SIOCIWFIRSTPRIV)
- return standard(dev, iwr, cmd, info, handler);
- else
- return private(dev, iwr, cmd, info, handler);
- }
- /* Old driver API : call driver ioctl handler */
- if (dev->netdev_ops->ndo_do_ioctl)
- return dev->netdev_ops->ndo_do_ioctl(dev, ifr, cmd);
- return -EOPNOTSUPP;
-}
-
-/* If command is `set a parameter', or `get the encoding parameters',
- * check if the user has the right to do it.
- */
-static int wext_permission_check(unsigned int cmd)
-{
- if ((IW_IS_SET(cmd) || cmd == SIOCGIWENCODE || cmd == SIOCGIWENCODEEXT)
- && !capable(CAP_NET_ADMIN))
- return -EPERM;
-
- return 0;
-}
-
-/* entry point from dev ioctl */
-static int wext_ioctl_dispatch(struct net *net, struct ifreq *ifr,
- unsigned int cmd, struct iw_request_info *info,
- wext_ioctl_func standard,
- wext_ioctl_func private)
-{
- int ret = wext_permission_check(cmd);
-
- if (ret)
- return ret;
-
- dev_load(net, ifr->ifr_name);
- rtnl_lock();
- ret = wireless_process_ioctl(net, ifr, cmd, info, standard, private);
- rtnl_unlock();
-
- return ret;
-}
-
-int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
- void __user *arg)
-{
- struct iw_request_info info = { .cmd = cmd, .flags = 0 };
- int ret;
-
- ret = wext_ioctl_dispatch(net, ifr, cmd, &info,
- ioctl_standard_call,
- ioctl_private_call);
- if (ret >= 0 &&
- IW_IS_GET(cmd) &&
- copy_to_user(arg, ifr, sizeof(struct iwreq)))
- return -EFAULT;
-
- return ret;
-}
-
-#ifdef CONFIG_COMPAT
-static int compat_standard_call(struct net_device *dev,
- struct iwreq *iwr,
- unsigned int cmd,
- struct iw_request_info *info,
- iw_handler handler)
-{
- const struct iw_ioctl_description *descr;
- struct compat_iw_point *iwp_compat;
- struct iw_point iwp;
- int err;
-
- descr = standard_ioctl + (cmd - SIOCIWFIRST);
-
- if (descr->header_type != IW_HEADER_TYPE_POINT)
- return ioctl_standard_call(dev, iwr, cmd, info, handler);
-
- iwp_compat = (struct compat_iw_point *) &iwr->u.data;
- iwp.pointer = compat_ptr(iwp_compat->pointer);
- iwp.length = iwp_compat->length;
- iwp.flags = iwp_compat->flags;
-
- err = ioctl_standard_iw_point(&iwp, cmd, descr, handler, dev, info);
-
- iwp_compat->pointer = ptr_to_compat(iwp.pointer);
- iwp_compat->length = iwp.length;
- iwp_compat->flags = iwp.flags;
-
- return err;
-}
-
-static int compat_private_call(struct net_device *dev, struct iwreq *iwr,
- unsigned int cmd, struct iw_request_info *info,
- iw_handler handler)
-{
- const struct iw_priv_args *descr;
- int ret, extra_size;
-
- extra_size = get_priv_descr_and_size(dev, cmd, &descr);
-
- /* Check if we have a pointer to user space data or not. */
- if (extra_size == 0) {
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, info, &(iwr->u), (char *) &(iwr->u));
- } else {
- struct compat_iw_point *iwp_compat;
- struct iw_point iwp;
-
- iwp_compat = (struct compat_iw_point *) &iwr->u.data;
- iwp.pointer = compat_ptr(iwp_compat->pointer);
- iwp.length = iwp_compat->length;
- iwp.flags = iwp_compat->flags;
-
- ret = ioctl_private_iw_point(&iwp, cmd, descr,
- handler, dev, info, extra_size);
-
- iwp_compat->pointer = ptr_to_compat(iwp.pointer);
- iwp_compat->length = iwp.length;
- iwp_compat->flags = iwp.flags;
- }
-
- /* Call commit handler if needed and defined */
- if (ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- return ret;
-}
-
-int compat_wext_handle_ioctl(struct net *net, unsigned int cmd,
- unsigned long arg)
-{
- void __user *argp = (void __user *)arg;
- struct iw_request_info info;
- struct iwreq iwr;
- char *colon;
- int ret;
-
- if (copy_from_user(&iwr, argp, sizeof(struct iwreq)))
- return -EFAULT;
-
- iwr.ifr_name[IFNAMSIZ-1] = 0;
- colon = strchr(iwr.ifr_name, ':');
- if (colon)
- *colon = 0;
-
- info.cmd = cmd;
- info.flags = IW_REQUEST_FLAG_COMPAT;
-
- ret = wext_ioctl_dispatch(net, (struct ifreq *) &iwr, cmd, &info,
- compat_standard_call,
- compat_private_call);
-
- if (ret >= 0 &&
- IW_IS_GET(cmd) &&
- copy_to_user(argp, &iwr, sizeof(struct iwreq)))
- return -EFAULT;
-
- return ret;
-}
-#endif
-
-static int __net_init wext_pernet_init(struct net *net)
-{
- skb_queue_head_init(&net->wext_nlevents);
- return 0;
-}
-
-static void __net_exit wext_pernet_exit(struct net *net)
-{
- skb_queue_purge(&net->wext_nlevents);
-}
-
-static struct pernet_operations wext_pernet_ops = {
- .init = wext_pernet_init,
- .exit = wext_pernet_exit,
-};
-
-static int __init wireless_nlevent_init(void)
-{
- return register_pernet_subsys(&wext_pernet_ops);
-}
-
-subsys_initcall(wireless_nlevent_init);
-
-/* Process events generated by the wireless layer or the driver. */
-static void wireless_nlevent_process(struct work_struct *work)
-{
- struct sk_buff *skb;
- struct net *net;
-
- rtnl_lock();
-
- for_each_net(net) {
- while ((skb = skb_dequeue(&net->wext_nlevents)))
- rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL,
- GFP_KERNEL);
- }
-
- rtnl_unlock();
-}
-
-static DECLARE_WORK(wireless_nlevent_work, wireless_nlevent_process);
-
-static struct nlmsghdr *rtnetlink_ifinfo_prep(struct net_device *dev,
- struct sk_buff *skb)
-{
- struct ifinfomsg *r;
- struct nlmsghdr *nlh;
-
- nlh = nlmsg_put(skb, 0, 0, RTM_NEWLINK, sizeof(*r), 0);
- if (!nlh)
- return NULL;
-
- r = nlmsg_data(nlh);
- r->ifi_family = AF_UNSPEC;
- r->__ifi_pad = 0;
- r->ifi_type = dev->type;
- r->ifi_index = dev->ifindex;
- r->ifi_flags = dev_get_flags(dev);
- r->ifi_change = 0; /* Wireless changes don't affect those flags */
-
- NLA_PUT_STRING(skb, IFLA_IFNAME, dev->name);
-
- return nlh;
- nla_put_failure:
- nlmsg_cancel(skb, nlh);
- return NULL;
-}
-
-
-/*
- * Main event dispatcher. Called from other parts and drivers.
- * Send the event on the appropriate channels.
- * May be called from interrupt context.
- */
-void wireless_send_event(struct net_device * dev,
- unsigned int cmd,
- union iwreq_data * wrqu,
- const char * extra)
-{
- const struct iw_ioctl_description * descr = NULL;
- int extra_len = 0;
- struct iw_event *event; /* Mallocated whole event */
- int event_len; /* Its size */
- int hdr_len; /* Size of the event header */
- int wrqu_off = 0; /* Offset in wrqu */
- /* Don't "optimise" the following variable, it will crash */
- unsigned cmd_index; /* *MUST* be unsigned */
- struct sk_buff *skb;
- struct nlmsghdr *nlh;
- struct nlattr *nla;
-#ifdef CONFIG_COMPAT
- struct __compat_iw_event *compat_event;
- struct compat_iw_point compat_wrqu;
- struct sk_buff *compskb;
-#endif
-
- /*
- * Nothing in the kernel sends scan events with data, be safe.
- * This is necessary because we cannot fix up scan event data
- * for compat, due to being contained in 'extra', but normally
- * applications are required to retrieve the scan data anyway
- * and no data is included in the event, this codifies that
- * practice.
- */
- if (WARN_ON(cmd == SIOCGIWSCAN && extra))
- extra = NULL;
-
- /* Get the description of the Event */
- if (cmd <= SIOCIWLAST) {
- cmd_index = cmd - SIOCIWFIRST;
- if (cmd_index < standard_ioctl_num)
- descr = &(standard_ioctl[cmd_index]);
- } else {
- cmd_index = cmd - IWEVFIRST;
- if (cmd_index < standard_event_num)
- descr = &(standard_event[cmd_index]);
- }
- /* Don't accept unknown events */
- if (descr == NULL) {
- /* Note : we don't return an error to the driver, because
- * the driver would not know what to do about it. It can't
- * return an error to the user, because the event is not
- * initiated by a user request.
- * The best the driver could do is to log an error message.
- * We will do it ourselves instead...
- */
- printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n",
- dev->name, cmd);
- return;
- }
-
- /* Check extra parameters and set extra_len */
- if (descr->header_type == IW_HEADER_TYPE_POINT) {
- /* Check if number of token fits within bounds */
- if (wrqu->data.length > descr->max_tokens) {
- printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length);
- return;
- }
- if (wrqu->data.length < descr->min_tokens) {
- printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length);
- return;
- }
- /* Calculate extra_len - extra is NULL for restricted events */
- if (extra != NULL)
- extra_len = wrqu->data.length * descr->token_size;
- /* Always at an offset in wrqu */
- wrqu_off = IW_EV_POINT_OFF;
- }
-
- /* Total length of the event */
- hdr_len = event_type_size[descr->header_type];
- event_len = hdr_len + extra_len;
-
- /*
- * The problem for 64/32 bit.
- *
- * On 64-bit, a regular event is laid out as follows:
- * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
- * | event.len | event.cmd | p a d d i n g |
- * | wrqu data ... (with the correct size) |
- *
- * This padding exists because we manipulate event->u,
- * and 'event' is not packed.
- *
- * An iw_point event is laid out like this instead:
- * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
- * | event.len | event.cmd | p a d d i n g |
- * | iwpnt.len | iwpnt.flg | p a d d i n g |
- * | extra data ...
- *
- * The second padding exists because struct iw_point is extended,
- * but this depends on the platform...
- *
- * On 32-bit, all the padding shouldn't be there.
- */
-
- skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
- if (!skb)
- return;
-
- /* Send via the RtNetlink event channel */
- nlh = rtnetlink_ifinfo_prep(dev, skb);
- if (WARN_ON(!nlh)) {
- kfree_skb(skb);
- return;
- }
-
- /* Add the wireless events in the netlink packet */
- nla = nla_reserve(skb, IFLA_WIRELESS, event_len);
- if (!nla) {
- kfree_skb(skb);
- return;
- }
- event = nla_data(nla);
-
- /* Fill event - first clear to avoid data leaking */
- memset(event, 0, hdr_len);
- event->len = event_len;
- event->cmd = cmd;
- memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN);
- if (extra_len)
- memcpy(((char *) event) + hdr_len, extra, extra_len);
-
- nlmsg_end(skb, nlh);
-#ifdef CONFIG_COMPAT
- hdr_len = compat_event_type_size[descr->header_type];
- event_len = hdr_len + extra_len;
-
- compskb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
- if (!compskb) {
- kfree_skb(skb);
- return;
- }
-
- /* Send via the RtNetlink event channel */
- nlh = rtnetlink_ifinfo_prep(dev, compskb);
- if (WARN_ON(!nlh)) {
- kfree_skb(skb);
- kfree_skb(compskb);
- return;
- }
-
- /* Add the wireless events in the netlink packet */
- nla = nla_reserve(compskb, IFLA_WIRELESS, event_len);
- if (!nla) {
- kfree_skb(skb);
- kfree_skb(compskb);
- return;
- }
- compat_event = nla_data(nla);
-
- compat_event->len = event_len;
- compat_event->cmd = cmd;
- if (descr->header_type == IW_HEADER_TYPE_POINT) {
- compat_wrqu.length = wrqu->data.length;
- compat_wrqu.flags = wrqu->data.flags;
- memcpy(&compat_event->pointer,
- ((char *) &compat_wrqu) + IW_EV_COMPAT_POINT_OFF,
- hdr_len - IW_EV_COMPAT_LCP_LEN);
- if (extra_len)
- memcpy(((char *) compat_event) + hdr_len,
- extra, extra_len);
- } else {
- /* extra_len must be zero, so no if (extra) needed */
- memcpy(&compat_event->pointer, wrqu,
- hdr_len - IW_EV_COMPAT_LCP_LEN);
- }
-
- nlmsg_end(compskb, nlh);
-
- skb_shinfo(skb)->frag_list = compskb;
-#endif
- skb_queue_tail(&dev_net(dev)->wext_nlevents, skb);
- schedule_work(&wireless_nlevent_work);
-}
-EXPORT_SYMBOL(wireless_send_event);
-
-/********************** ENHANCED IWSPY SUPPORT **********************/
-/*
- * In the old days, the driver was handling spy support all by itself.
- * Now, the driver can delegate this task to Wireless Extensions.
- * It needs to use those standard spy iw_handler in struct iw_handler_def,
- * push data to us via wireless_spy_update() and include struct iw_spy_data
- * in its private part (and export it in net_device->wireless_data->spy_data).
- * One of the main advantage of centralising spy support here is that
- * it becomes much easier to improve and extend it without having to touch
- * the drivers. One example is the addition of the Spy-Threshold events.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Return the pointer to the spy data in the driver.
- * Because this is called on the Rx path via wireless_spy_update(),
- * we want it to be efficient...
- */
-static inline struct iw_spy_data *get_spydata(struct net_device *dev)
-{
- /* This is the new way */
- if (dev->wireless_data)
- return dev->wireless_data->spy_data;
- return NULL;
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : set Spy List
- */
-int iw_handler_set_spy(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct sockaddr * address = (struct sockaddr *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Disable spy collection while we copy the addresses.
- * While we copy addresses, any call to wireless_spy_update()
- * will NOP. This is OK, as anyway the addresses are changing. */
- spydata->spy_number = 0;
-
- /* We want to operate without locking, because wireless_spy_update()
- * most likely will happen in the interrupt handler, and therefore
- * have its own locking constraints and needs performance.
- * The rtnl_lock() make sure we don't race with the other iw_handlers.
- * This make sure wireless_spy_update() "see" that the spy list
- * is temporarily disabled. */
- smp_wmb();
-
- /* Are there are addresses to copy? */
- if (wrqu->data.length > 0) {
- int i;
-
- /* Copy addresses */
- for (i = 0; i < wrqu->data.length; i++)
- memcpy(spydata->spy_address[i], address[i].sa_data,
- ETH_ALEN);
- /* Reset stats */
- memset(spydata->spy_stat, 0,
- sizeof(struct iw_quality) * IW_MAX_SPY);
- }
-
- /* Make sure above is updated before re-enabling */
- smp_wmb();
-
- /* Enable addresses */
- spydata->spy_number = wrqu->data.length;
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_set_spy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : get Spy List
- */
-int iw_handler_get_spy(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct sockaddr * address = (struct sockaddr *) extra;
- int i;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- wrqu->data.length = spydata->spy_number;
-
- /* Copy addresses. */
- for (i = 0; i < spydata->spy_number; i++) {
- memcpy(address[i].sa_data, spydata->spy_address[i], ETH_ALEN);
- address[i].sa_family = AF_UNIX;
- }
- /* Copy stats to the user buffer (just after). */
- if (spydata->spy_number > 0)
- memcpy(extra + (sizeof(struct sockaddr) *spydata->spy_number),
- spydata->spy_stat,
- sizeof(struct iw_quality) * spydata->spy_number);
- /* Reset updated flags. */
- for (i = 0; i < spydata->spy_number; i++)
- spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED;
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_get_spy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : set spy threshold
- */
-int iw_handler_set_thrspy(struct net_device * dev,
- struct iw_request_info *info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Just do it */
- memcpy(&(spydata->spy_thr_low), &(threshold->low),
- 2 * sizeof(struct iw_quality));
-
- /* Clear flag */
- memset(spydata->spy_thr_under, '\0', sizeof(spydata->spy_thr_under));
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_set_thrspy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : get spy threshold
- */
-int iw_handler_get_thrspy(struct net_device * dev,
- struct iw_request_info *info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Just do it */
- memcpy(&(threshold->low), &(spydata->spy_thr_low),
- 2 * sizeof(struct iw_quality));
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_get_thrspy);
-
-/*------------------------------------------------------------------*/
-/*
- * Prepare and send a Spy Threshold event
- */
-static void iw_send_thrspy_event(struct net_device * dev,
- struct iw_spy_data * spydata,
- unsigned char * address,
- struct iw_quality * wstats)
-{
- union iwreq_data wrqu;
- struct iw_thrspy threshold;
-
- /* Init */
- wrqu.data.length = 1;
- wrqu.data.flags = 0;
- /* Copy address */
- memcpy(threshold.addr.sa_data, address, ETH_ALEN);
- threshold.addr.sa_family = ARPHRD_ETHER;
- /* Copy stats */
- memcpy(&(threshold.qual), wstats, sizeof(struct iw_quality));
- /* Copy also thresholds */
- memcpy(&(threshold.low), &(spydata->spy_thr_low),
- 2 * sizeof(struct iw_quality));
-
- /* Send event to user space */
- wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold);
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Call for the driver to update the spy data.
- * For now, the spy data is a simple array. As the size of the array is
- * small, this is good enough. If we wanted to support larger number of
- * spy addresses, we should use something more efficient...
- */
-void wireless_spy_update(struct net_device * dev,
- unsigned char * address,
- struct iw_quality * wstats)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- int i;
- int match = -1;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return;
-
- /* Update all records that match */
- for (i = 0; i < spydata->spy_number; i++)
- if (!compare_ether_addr(address, spydata->spy_address[i])) {
- memcpy(&(spydata->spy_stat[i]), wstats,
- sizeof(struct iw_quality));
- match = i;
- }
-
- /* Generate an event if we cross the spy threshold.
- * To avoid event storms, we have a simple hysteresis : we generate
- * event only when we go under the low threshold or above the
- * high threshold. */
- if (match >= 0) {
- if (spydata->spy_thr_under[match]) {
- if (wstats->level > spydata->spy_thr_high.level) {
- spydata->spy_thr_under[match] = 0;
- iw_send_thrspy_event(dev, spydata,
- address, wstats);
- }
- } else {
- if (wstats->level < spydata->spy_thr_low.level) {
- spydata->spy_thr_under[match] = 1;
- iw_send_thrspy_event(dev, spydata,
- address, wstats);
- }
- }
- }
-}
-EXPORT_SYMBOL(wireless_spy_update);
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ wireless-testing/net/wireless/wext-core.c 2009-09-25 11:56:59.000000000 +0200
@@ -0,0 +1,1060 @@
+/*
+ * This file implement the Wireless Extensions core API.
+ *
+ * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
+ * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * (As all part of the Linux kernel, this file is GPL)
+ */
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/wireless.h>
+#include <linux/uaccess.h>
+#include <net/cfg80211.h>
+#include <net/iw_handler.h>
+#include <net/netlink.h>
+#include <net/wext.h>
+#include <net/net_namespace.h>
+
+typedef int (*wext_ioctl_func)(struct net_device *, struct iwreq *,
+ unsigned int, struct iw_request_info *,
+ iw_handler);
+
+
+/*
+ * Meta-data about all the standard Wireless Extension request we
+ * know about.
+ */
+static const struct iw_ioctl_description standard_ioctl[] = {
+ [SIOCSIWCOMMIT - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_NULL,
+ },
+ [SIOCGIWNAME - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_CHAR,
+ .flags = IW_DESCR_FLAG_DUMP,
+ },
+ [SIOCSIWNWID - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ .flags = IW_DESCR_FLAG_EVENT,
+ },
+ [SIOCGIWNWID - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ .flags = IW_DESCR_FLAG_DUMP,
+ },
+ [SIOCSIWFREQ - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_FREQ,
+ .flags = IW_DESCR_FLAG_EVENT,
+ },
+ [SIOCGIWFREQ - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_FREQ,
+ .flags = IW_DESCR_FLAG_DUMP,
+ },
+ [SIOCSIWMODE - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_UINT,
+ .flags = IW_DESCR_FLAG_EVENT,
+ },
+ [SIOCGIWMODE - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_UINT,
+ .flags = IW_DESCR_FLAG_DUMP,
+ },
+ [SIOCSIWSENS - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCGIWSENS - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCSIWRANGE - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_NULL,
+ },
+ [SIOCGIWRANGE - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = sizeof(struct iw_range),
+ .flags = IW_DESCR_FLAG_DUMP,
+ },
+ [SIOCSIWPRIV - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_NULL,
+ },
+ [SIOCGIWPRIV - SIOCIWFIRST] = { /* (handled directly by us) */
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = sizeof(struct iw_priv_args),
+ .max_tokens = 16,
+ .flags = IW_DESCR_FLAG_NOMAX,
+ },
+ [SIOCSIWSTATS - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_NULL,
+ },
+ [SIOCGIWSTATS - SIOCIWFIRST] = { /* (handled directly by us) */
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = sizeof(struct iw_statistics),
+ .flags = IW_DESCR_FLAG_DUMP,
+ },
+ [SIOCSIWSPY - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = sizeof(struct sockaddr),
+ .max_tokens = IW_MAX_SPY,
+ },
+ [SIOCGIWSPY - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = sizeof(struct sockaddr) +
+ sizeof(struct iw_quality),
+ .max_tokens = IW_MAX_SPY,
+ },
+ [SIOCSIWTHRSPY - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = sizeof(struct iw_thrspy),
+ .min_tokens = 1,
+ .max_tokens = 1,
+ },
+ [SIOCGIWTHRSPY - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = sizeof(struct iw_thrspy),
+ .min_tokens = 1,
+ .max_tokens = 1,
+ },
+ [SIOCSIWAP - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_ADDR,
+ },
+ [SIOCGIWAP - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_ADDR,
+ .flags = IW_DESCR_FLAG_DUMP,
+ },
+ [SIOCSIWMLME - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .min_tokens = sizeof(struct iw_mlme),
+ .max_tokens = sizeof(struct iw_mlme),
+ },
+ [SIOCGIWAPLIST - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = sizeof(struct sockaddr) +
+ sizeof(struct iw_quality),
+ .max_tokens = IW_MAX_AP,
+ .flags = IW_DESCR_FLAG_NOMAX,
+ },
+ [SIOCSIWSCAN - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .min_tokens = 0,
+ .max_tokens = sizeof(struct iw_scan_req),
+ },
+ [SIOCGIWSCAN - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_SCAN_MAX_DATA,
+ .flags = IW_DESCR_FLAG_NOMAX,
+ },
+ [SIOCSIWESSID - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_ESSID_MAX_SIZE,
+ .flags = IW_DESCR_FLAG_EVENT,
+ },
+ [SIOCGIWESSID - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_ESSID_MAX_SIZE,
+ .flags = IW_DESCR_FLAG_DUMP,
+ },
+ [SIOCSIWNICKN - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_ESSID_MAX_SIZE,
+ },
+ [SIOCGIWNICKN - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_ESSID_MAX_SIZE,
+ },
+ [SIOCSIWRATE - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCGIWRATE - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCSIWRTS - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCGIWRTS - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCSIWFRAG - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCGIWFRAG - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCSIWTXPOW - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCGIWTXPOW - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCSIWRETRY - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCGIWRETRY - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCSIWENCODE - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_ENCODING_TOKEN_MAX,
+ .flags = IW_DESCR_FLAG_EVENT | IW_DESCR_FLAG_RESTRICT,
+ },
+ [SIOCGIWENCODE - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_ENCODING_TOKEN_MAX,
+ .flags = IW_DESCR_FLAG_DUMP | IW_DESCR_FLAG_RESTRICT,
+ },
+ [SIOCSIWPOWER - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCGIWPOWER - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCSIWGENIE - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_GENERIC_IE_MAX,
+ },
+ [SIOCGIWGENIE - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_GENERIC_IE_MAX,
+ },
+ [SIOCSIWAUTH - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCGIWAUTH - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_PARAM,
+ },
+ [SIOCSIWENCODEEXT - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .min_tokens = sizeof(struct iw_encode_ext),
+ .max_tokens = sizeof(struct iw_encode_ext) +
+ IW_ENCODING_TOKEN_MAX,
+ },
+ [SIOCGIWENCODEEXT - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .min_tokens = sizeof(struct iw_encode_ext),
+ .max_tokens = sizeof(struct iw_encode_ext) +
+ IW_ENCODING_TOKEN_MAX,
+ },
+ [SIOCSIWPMKSA - SIOCIWFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .min_tokens = sizeof(struct iw_pmksa),
+ .max_tokens = sizeof(struct iw_pmksa),
+ },
+};
+static const unsigned standard_ioctl_num = ARRAY_SIZE(standard_ioctl);
+
+/*
+ * Meta-data about all the additional standard Wireless Extension events
+ * we know about.
+ */
+static const struct iw_ioctl_description standard_event[] = {
+ [IWEVTXDROP - IWEVFIRST] = {
+ .header_type = IW_HEADER_TYPE_ADDR,
+ },
+ [IWEVQUAL - IWEVFIRST] = {
+ .header_type = IW_HEADER_TYPE_QUAL,
+ },
+ [IWEVCUSTOM - IWEVFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_CUSTOM_MAX,
+ },
+ [IWEVREGISTERED - IWEVFIRST] = {
+ .header_type = IW_HEADER_TYPE_ADDR,
+ },
+ [IWEVEXPIRED - IWEVFIRST] = {
+ .header_type = IW_HEADER_TYPE_ADDR,
+ },
+ [IWEVGENIE - IWEVFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_GENERIC_IE_MAX,
+ },
+ [IWEVMICHAELMICFAILURE - IWEVFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = sizeof(struct iw_michaelmicfailure),
+ },
+ [IWEVASSOCREQIE - IWEVFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_GENERIC_IE_MAX,
+ },
+ [IWEVASSOCRESPIE - IWEVFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = IW_GENERIC_IE_MAX,
+ },
+ [IWEVPMKIDCAND - IWEVFIRST] = {
+ .header_type = IW_HEADER_TYPE_POINT,
+ .token_size = 1,
+ .max_tokens = sizeof(struct iw_pmkid_cand),
+ },
+};
+static const unsigned standard_event_num = ARRAY_SIZE(standard_event);
+
+/* Size (in bytes) of various events */
+static const int event_type_size[] = {
+ IW_EV_LCP_LEN, /* IW_HEADER_TYPE_NULL */
+ 0,
+ IW_EV_CHAR_LEN, /* IW_HEADER_TYPE_CHAR */
+ 0,
+ IW_EV_UINT_LEN, /* IW_HEADER_TYPE_UINT */
+ IW_EV_FREQ_LEN, /* IW_HEADER_TYPE_FREQ */
+ IW_EV_ADDR_LEN, /* IW_HEADER_TYPE_ADDR */
+ 0,
+ IW_EV_POINT_LEN, /* Without variable payload */
+ IW_EV_PARAM_LEN, /* IW_HEADER_TYPE_PARAM */
+ IW_EV_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */
+};
+
+#ifdef CONFIG_COMPAT
+static const int compat_event_type_size[] = {
+ IW_EV_COMPAT_LCP_LEN, /* IW_HEADER_TYPE_NULL */
+ 0,
+ IW_EV_COMPAT_CHAR_LEN, /* IW_HEADER_TYPE_CHAR */
+ 0,
+ IW_EV_COMPAT_UINT_LEN, /* IW_HEADER_TYPE_UINT */
+ IW_EV_COMPAT_FREQ_LEN, /* IW_HEADER_TYPE_FREQ */
+ IW_EV_COMPAT_ADDR_LEN, /* IW_HEADER_TYPE_ADDR */
+ 0,
+ IW_EV_COMPAT_POINT_LEN, /* Without variable payload */
+ IW_EV_COMPAT_PARAM_LEN, /* IW_HEADER_TYPE_PARAM */
+ IW_EV_COMPAT_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */
+};
+#endif
+
+
+/* IW event code */
+
+static int __net_init wext_pernet_init(struct net *net)
+{
+ skb_queue_head_init(&net->wext_nlevents);
+ return 0;
+}
+
+static void __net_exit wext_pernet_exit(struct net *net)
+{
+ skb_queue_purge(&net->wext_nlevents);
+}
+
+static struct pernet_operations wext_pernet_ops = {
+ .init = wext_pernet_init,
+ .exit = wext_pernet_exit,
+};
+
+static int __init wireless_nlevent_init(void)
+{
+ return register_pernet_subsys(&wext_pernet_ops);
+}
+
+subsys_initcall(wireless_nlevent_init);
+
+/* Process events generated by the wireless layer or the driver. */
+static void wireless_nlevent_process(struct work_struct *work)
+{
+ struct sk_buff *skb;
+ struct net *net;
+
+ rtnl_lock();
+
+ for_each_net(net) {
+ while ((skb = skb_dequeue(&net->wext_nlevents)))
+ rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL,
+ GFP_KERNEL);
+ }
+
+ rtnl_unlock();
+}
+
+static DECLARE_WORK(wireless_nlevent_work, wireless_nlevent_process);
+
+static struct nlmsghdr *rtnetlink_ifinfo_prep(struct net_device *dev,
+ struct sk_buff *skb)
+{
+ struct ifinfomsg *r;
+ struct nlmsghdr *nlh;
+
+ nlh = nlmsg_put(skb, 0, 0, RTM_NEWLINK, sizeof(*r), 0);
+ if (!nlh)
+ return NULL;
+
+ r = nlmsg_data(nlh);
+ r->ifi_family = AF_UNSPEC;
+ r->__ifi_pad = 0;
+ r->ifi_type = dev->type;
+ r->ifi_index = dev->ifindex;
+ r->ifi_flags = dev_get_flags(dev);
+ r->ifi_change = 0; /* Wireless changes don't affect those flags */
+
+ NLA_PUT_STRING(skb, IFLA_IFNAME, dev->name);
+
+ return nlh;
+ nla_put_failure:
+ nlmsg_cancel(skb, nlh);
+ return NULL;
+}
+
+
+/*
+ * Main event dispatcher. Called from other parts and drivers.
+ * Send the event on the appropriate channels.
+ * May be called from interrupt context.
+ */
+void wireless_send_event(struct net_device * dev,
+ unsigned int cmd,
+ union iwreq_data * wrqu,
+ const char * extra)
+{
+ const struct iw_ioctl_description * descr = NULL;
+ int extra_len = 0;
+ struct iw_event *event; /* Mallocated whole event */
+ int event_len; /* Its size */
+ int hdr_len; /* Size of the event header */
+ int wrqu_off = 0; /* Offset in wrqu */
+ /* Don't "optimise" the following variable, it will crash */
+ unsigned cmd_index; /* *MUST* be unsigned */
+ struct sk_buff *skb;
+ struct nlmsghdr *nlh;
+ struct nlattr *nla;
+#ifdef CONFIG_COMPAT
+ struct __compat_iw_event *compat_event;
+ struct compat_iw_point compat_wrqu;
+ struct sk_buff *compskb;
+#endif
+
+ /*
+ * Nothing in the kernel sends scan events with data, be safe.
+ * This is necessary because we cannot fix up scan event data
+ * for compat, due to being contained in 'extra', but normally
+ * applications are required to retrieve the scan data anyway
+ * and no data is included in the event, this codifies that
+ * practice.
+ */
+ if (WARN_ON(cmd == SIOCGIWSCAN && extra))
+ extra = NULL;
+
+ /* Get the description of the Event */
+ if (cmd <= SIOCIWLAST) {
+ cmd_index = cmd - SIOCIWFIRST;
+ if (cmd_index < standard_ioctl_num)
+ descr = &(standard_ioctl[cmd_index]);
+ } else {
+ cmd_index = cmd - IWEVFIRST;
+ if (cmd_index < standard_event_num)
+ descr = &(standard_event[cmd_index]);
+ }
+ /* Don't accept unknown events */
+ if (descr == NULL) {
+ /* Note : we don't return an error to the driver, because
+ * the driver would not know what to do about it. It can't
+ * return an error to the user, because the event is not
+ * initiated by a user request.
+ * The best the driver could do is to log an error message.
+ * We will do it ourselves instead...
+ */
+ printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n",
+ dev->name, cmd);
+ return;
+ }
+
+ /* Check extra parameters and set extra_len */
+ if (descr->header_type == IW_HEADER_TYPE_POINT) {
+ /* Check if number of token fits within bounds */
+ if (wrqu->data.length > descr->max_tokens) {
+ printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length);
+ return;
+ }
+ if (wrqu->data.length < descr->min_tokens) {
+ printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length);
+ return;
+ }
+ /* Calculate extra_len - extra is NULL for restricted events */
+ if (extra != NULL)
+ extra_len = wrqu->data.length * descr->token_size;
+ /* Always at an offset in wrqu */
+ wrqu_off = IW_EV_POINT_OFF;
+ }
+
+ /* Total length of the event */
+ hdr_len = event_type_size[descr->header_type];
+ event_len = hdr_len + extra_len;
+
+ /*
+ * The problem for 64/32 bit.
+ *
+ * On 64-bit, a regular event is laid out as follows:
+ * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+ * | event.len | event.cmd | p a d d i n g |
+ * | wrqu data ... (with the correct size) |
+ *
+ * This padding exists because we manipulate event->u,
+ * and 'event' is not packed.
+ *
+ * An iw_point event is laid out like this instead:
+ * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+ * | event.len | event.cmd | p a d d i n g |
+ * | iwpnt.len | iwpnt.flg | p a d d i n g |
+ * | extra data ...
+ *
+ * The second padding exists because struct iw_point is extended,
+ * but this depends on the platform...
+ *
+ * On 32-bit, all the padding shouldn't be there.
+ */
+
+ skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+ if (!skb)
+ return;
+
+ /* Send via the RtNetlink event channel */
+ nlh = rtnetlink_ifinfo_prep(dev, skb);
+ if (WARN_ON(!nlh)) {
+ kfree_skb(skb);
+ return;
+ }
+
+ /* Add the wireless events in the netlink packet */
+ nla = nla_reserve(skb, IFLA_WIRELESS, event_len);
+ if (!nla) {
+ kfree_skb(skb);
+ return;
+ }
+ event = nla_data(nla);
+
+ /* Fill event - first clear to avoid data leaking */
+ memset(event, 0, hdr_len);
+ event->len = event_len;
+ event->cmd = cmd;
+ memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN);
+ if (extra_len)
+ memcpy(((char *) event) + hdr_len, extra, extra_len);
+
+ nlmsg_end(skb, nlh);
+#ifdef CONFIG_COMPAT
+ hdr_len = compat_event_type_size[descr->header_type];
+ event_len = hdr_len + extra_len;
+
+ compskb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+ if (!compskb) {
+ kfree_skb(skb);
+ return;
+ }
+
+ /* Send via the RtNetlink event channel */
+ nlh = rtnetlink_ifinfo_prep(dev, compskb);
+ if (WARN_ON(!nlh)) {
+ kfree_skb(skb);
+ kfree_skb(compskb);
+ return;
+ }
+
+ /* Add the wireless events in the netlink packet */
+ nla = nla_reserve(compskb, IFLA_WIRELESS, event_len);
+ if (!nla) {
+ kfree_skb(skb);
+ kfree_skb(compskb);
+ return;
+ }
+ compat_event = nla_data(nla);
+
+ compat_event->len = event_len;
+ compat_event->cmd = cmd;
+ if (descr->header_type == IW_HEADER_TYPE_POINT) {
+ compat_wrqu.length = wrqu->data.length;
+ compat_wrqu.flags = wrqu->data.flags;
+ memcpy(&compat_event->pointer,
+ ((char *) &compat_wrqu) + IW_EV_COMPAT_POINT_OFF,
+ hdr_len - IW_EV_COMPAT_LCP_LEN);
+ if (extra_len)
+ memcpy(((char *) compat_event) + hdr_len,
+ extra, extra_len);
+ } else {
+ /* extra_len must be zero, so no if (extra) needed */
+ memcpy(&compat_event->pointer, wrqu,
+ hdr_len - IW_EV_COMPAT_LCP_LEN);
+ }
+
+ nlmsg_end(compskb, nlh);
+
+ skb_shinfo(skb)->frag_list = compskb;
+#endif
+ skb_queue_tail(&dev_net(dev)->wext_nlevents, skb);
+ schedule_work(&wireless_nlevent_work);
+}
+EXPORT_SYMBOL(wireless_send_event);
+
+
+
+/* IW handlers */
+
+struct iw_statistics *get_wireless_stats(struct net_device *dev)
+{
+#ifdef CONFIG_WIRELESS_EXT
+ if ((dev->wireless_handlers != NULL) &&
+ (dev->wireless_handlers->get_wireless_stats != NULL))
+ return dev->wireless_handlers->get_wireless_stats(dev);
+#endif
+
+#ifdef CONFIG_CFG80211_WEXT
+ if (dev->ieee80211_ptr && dev->ieee80211_ptr &&
+ dev->ieee80211_ptr->wiphy &&
+ dev->ieee80211_ptr->wiphy->wext &&
+ dev->ieee80211_ptr->wiphy->wext->get_wireless_stats)
+ return dev->ieee80211_ptr->wiphy->wext->get_wireless_stats(dev);
+#endif
+
+ /* not found */
+ return NULL;
+}
+
+static int iw_handler_get_iwstats(struct net_device * dev,
+ struct iw_request_info * info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ /* Get stats from the driver */
+ struct iw_statistics *stats;
+
+ stats = get_wireless_stats(dev);
+ if (stats) {
+ /* Copy statistics to extra */
+ memcpy(extra, stats, sizeof(struct iw_statistics));
+ wrqu->data.length = sizeof(struct iw_statistics);
+
+ /* Check if we need to clear the updated flag */
+ if (wrqu->data.flags != 0)
+ stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
+ return 0;
+ } else
+ return -EOPNOTSUPP;
+}
+
+static iw_handler get_handler(struct net_device *dev, unsigned int cmd)
+{
+ /* Don't "optimise" the following variable, it will crash */
+ unsigned int index; /* *MUST* be unsigned */
+ const struct iw_handler_def *handlers = NULL;
+
+#ifdef CONFIG_CFG80211_WEXT
+ if (dev->ieee80211_ptr && dev->ieee80211_ptr->wiphy)
+ handlers = dev->ieee80211_ptr->wiphy->wext;
+#endif
+#ifdef CONFIG_WIRELESS_EXT
+ if (dev->wireless_handlers)
+ handlers = dev->wireless_handlers;
+#endif
+
+ if (!handlers)
+ return NULL;
+
+ /* Try as a standard command */
+ index = cmd - SIOCIWFIRST;
+ if (index < handlers->num_standard)
+ return handlers->standard[index];
+
+#ifdef CONFIG_WEXT_PRIV
+ /* Try as a private command */
+ index = cmd - SIOCIWFIRSTPRIV;
+ if (index < handlers->num_private)
+ return handlers->private[index];
+#endif
+
+ /* Not found */
+ return NULL;
+}
+
+static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
+ const struct iw_ioctl_description *descr,
+ iw_handler handler, struct net_device *dev,
+ struct iw_request_info *info)
+{
+ int err, extra_size, user_length = 0, essid_compat = 0;
+ char *extra;
+
+ /* Calculate space needed by arguments. Always allocate
+ * for max space.
+ */
+ extra_size = descr->max_tokens * descr->token_size;
+
+ /* Check need for ESSID compatibility for WE < 21 */
+ switch (cmd) {
+ case SIOCSIWESSID:
+ case SIOCGIWESSID:
+ case SIOCSIWNICKN:
+ case SIOCGIWNICKN:
+ if (iwp->length == descr->max_tokens + 1)
+ essid_compat = 1;
+ else if (IW_IS_SET(cmd) && (iwp->length != 0)) {
+ char essid[IW_ESSID_MAX_SIZE + 1];
+
+ err = copy_from_user(essid, iwp->pointer,
+ iwp->length *
+ descr->token_size);
+ if (err)
+ return -EFAULT;
+
+ if (essid[iwp->length - 1] == '\0')
+ essid_compat = 1;
+ }
+ break;
+ default:
+ break;
+ }
+
+ iwp->length -= essid_compat;
+
+ /* Check what user space is giving us */
+ if (IW_IS_SET(cmd)) {
+ /* Check NULL pointer */
+ if (!iwp->pointer && iwp->length != 0)
+ return -EFAULT;
+ /* Check if number of token fits within bounds */
+ if (iwp->length > descr->max_tokens)
+ return -E2BIG;
+ if (iwp->length < descr->min_tokens)
+ return -EINVAL;
+ } else {
+ /* Check NULL pointer */
+ if (!iwp->pointer)
+ return -EFAULT;
+ /* Save user space buffer size for checking */
+ user_length = iwp->length;
+
+ /* Don't check if user_length > max to allow forward
+ * compatibility. The test user_length < min is
+ * implied by the test at the end.
+ */
+
+ /* Support for very large requests */
+ if ((descr->flags & IW_DESCR_FLAG_NOMAX) &&
+ (user_length > descr->max_tokens)) {
+ /* Allow userspace to GET more than max so
+ * we can support any size GET requests.
+ * There is still a limit : -ENOMEM.
+ */
+ extra_size = user_length * descr->token_size;
+
+ /* Note : user_length is originally a __u16,
+ * and token_size is controlled by us,
+ * so extra_size won't get negative and
+ * won't overflow...
+ */
+ }
+ }
+
+ /* kzalloc() ensures NULL-termination for essid_compat. */
+ extra = kzalloc(extra_size, GFP_KERNEL);
+ if (!extra)
+ return -ENOMEM;
+
+ /* If it is a SET, get all the extra data in here */
+ if (IW_IS_SET(cmd) && (iwp->length != 0)) {
+ if (copy_from_user(extra, iwp->pointer,
+ iwp->length *
+ descr->token_size)) {
+ err = -EFAULT;
+ goto out;
+ }
+
+ if (cmd == SIOCSIWENCODEEXT) {
+ struct iw_encode_ext *ee = (void *) extra;
+
+ if (iwp->length < sizeof(*ee) + ee->key_len)
+ return -EFAULT;
+ }
+ }
+
+ err = handler(dev, info, (union iwreq_data *) iwp, extra);
+
+ iwp->length += essid_compat;
+
+ /* If we have something to return to the user */
+ if (!err && IW_IS_GET(cmd)) {
+ /* Check if there is enough buffer up there */
+ if (user_length < iwp->length) {
+ err = -E2BIG;
+ goto out;
+ }
+
+ if (copy_to_user(iwp->pointer, extra,
+ iwp->length *
+ descr->token_size)) {
+ err = -EFAULT;
+ goto out;
+ }
+ }
+
+ /* Generate an event to notify listeners of the change */
+ if ((descr->flags & IW_DESCR_FLAG_EVENT) && err == -EIWCOMMIT) {
+ union iwreq_data *data = (union iwreq_data *) iwp;
+
+ if (descr->flags & IW_DESCR_FLAG_RESTRICT)
+ /* If the event is restricted, don't
+ * export the payload.
+ */
+ wireless_send_event(dev, cmd, data, NULL);
+ else
+ wireless_send_event(dev, cmd, data, extra);
+ }
+
+out:
+ kfree(extra);
+ return err;
+}
+
+/*
+ * Call the commit handler in the driver
+ * (if exist and if conditions are right)
+ *
+ * Note : our current commit strategy is currently pretty dumb,
+ * but we will be able to improve on that...
+ * The goal is to try to agreagate as many changes as possible
+ * before doing the commit. Drivers that will define a commit handler
+ * are usually those that need a reset after changing parameters, so
+ * we want to minimise the number of reset.
+ * A cool idea is to use a timer : at each "set" command, we re-set the
+ * timer, when the timer eventually fires, we call the driver.
+ * Hopefully, more on that later.
+ *
+ * Also, I'm waiting to see how many people will complain about the
+ * netif_running(dev) test. I'm open on that one...
+ * Hopefully, the driver will remember to do a commit in "open()" ;-)
+ */
+int call_commit_handler(struct net_device *dev)
+{
+#ifdef CONFIG_WIRELESS_EXT
+ if ((netif_running(dev)) &&
+ (dev->wireless_handlers->standard[0] != NULL))
+ /* Call the commit handler on the driver */
+ return dev->wireless_handlers->standard[0](dev, NULL,
+ NULL, NULL);
+ else
+ return 0; /* Command completed successfully */
+#else
+ /* cfg80211 has no commit */
+ return 0;
+#endif
+}
+
+/*
+ * Main IOCTl dispatcher.
+ * Check the type of IOCTL and call the appropriate wrapper...
+ */
+static int wireless_process_ioctl(struct net *net, struct ifreq *ifr,
+ unsigned int cmd,
+ struct iw_request_info *info,
+ wext_ioctl_func standard,
+ wext_ioctl_func private)
+{
+ struct iwreq *iwr = (struct iwreq *) ifr;
+ struct net_device *dev;
+ iw_handler handler;
+
+ /* Permissions are already checked in dev_ioctl() before calling us.
+ * The copy_to/from_user() of ifr is also dealt with in there */
+
+ /* Make sure the device exist */
+ if ((dev = __dev_get_by_name(net, ifr->ifr_name)) == NULL)
+ return -ENODEV;
+
+ /* A bunch of special cases, then the generic case...
+ * Note that 'cmd' is already filtered in dev_ioctl() with
+ * (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) */
+ if (cmd == SIOCGIWSTATS)
+ return standard(dev, iwr, cmd, info,
+ &iw_handler_get_iwstats);
+
+#ifdef CONFIG_WEXT_PRIV
+ if (cmd == SIOCGIWPRIV && dev->wireless_handlers)
+ return standard(dev, iwr, cmd, info,
+ iw_handler_get_private);
+#endif
+
+ /* Basic check */
+ if (!netif_device_present(dev))
+ return -ENODEV;
+
+ /* New driver API : try to find the handler */
+ handler = get_handler(dev, cmd);
+ if (handler) {
+ /* Standard and private are not the same */
+ if (cmd < SIOCIWFIRSTPRIV)
+ return standard(dev, iwr, cmd, info, handler);
+ else if (private)
+ return private(dev, iwr, cmd, info, handler);
+ }
+ /* Old driver API : call driver ioctl handler */
+ if (dev->netdev_ops->ndo_do_ioctl)
+ return dev->netdev_ops->ndo_do_ioctl(dev, ifr, cmd);
+ return -EOPNOTSUPP;
+}
+
+/* If command is `set a parameter', or `get the encoding parameters',
+ * check if the user has the right to do it.
+ */
+static int wext_permission_check(unsigned int cmd)
+{
+ if ((IW_IS_SET(cmd) || cmd == SIOCGIWENCODE || cmd == SIOCGIWENCODEEXT)
+ && !capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ return 0;
+}
+
+/* entry point from dev ioctl */
+static int wext_ioctl_dispatch(struct net *net, struct ifreq *ifr,
+ unsigned int cmd, struct iw_request_info *info,
+ wext_ioctl_func standard,
+ wext_ioctl_func private)
+{
+ int ret = wext_permission_check(cmd);
+
+ if (ret)
+ return ret;
+
+ dev_load(net, ifr->ifr_name);
+ rtnl_lock();
+ ret = wireless_process_ioctl(net, ifr, cmd, info, standard, private);
+ rtnl_unlock();
+
+ return ret;
+}
+
+/*
+ * Wrapper to call a standard Wireless Extension handler.
+ * We do various checks and also take care of moving data between
+ * user space and kernel space.
+ */
+static int ioctl_standard_call(struct net_device * dev,
+ struct iwreq *iwr,
+ unsigned int cmd,
+ struct iw_request_info *info,
+ iw_handler handler)
+{
+ const struct iw_ioctl_description * descr;
+ int ret = -EINVAL;
+
+ /* Get the description of the IOCTL */
+ if ((cmd - SIOCIWFIRST) >= standard_ioctl_num)
+ return -EOPNOTSUPP;
+ descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
+
+ /* Check if we have a pointer to user space data or not */
+ if (descr->header_type != IW_HEADER_TYPE_POINT) {
+
+ /* No extra arguments. Trivial to handle */
+ ret = handler(dev, info, &(iwr->u), NULL);
+
+ /* Generate an event to notify listeners of the change */
+ if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
+ ((ret == 0) || (ret == -EIWCOMMIT)))
+ wireless_send_event(dev, cmd, &(iwr->u), NULL);
+ } else {
+ ret = ioctl_standard_iw_point(&iwr->u.data, cmd, descr,
+ handler, dev, info);
+ }
+
+ /* Call commit handler if needed and defined */
+ if (ret == -EIWCOMMIT)
+ ret = call_commit_handler(dev);
+
+ /* Here, we will generate the appropriate event if needed */
+
+ return ret;
+}
+
+
+int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
+ void __user *arg)
+{
+ struct iw_request_info info = { .cmd = cmd, .flags = 0 };
+ int ret;
+
+ ret = wext_ioctl_dispatch(net, ifr, cmd, &info,
+ ioctl_standard_call,
+ ioctl_private_call);
+ if (ret >= 0 &&
+ IW_IS_GET(cmd) &&
+ copy_to_user(arg, ifr, sizeof(struct iwreq)))
+ return -EFAULT;
+
+ return ret;
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_standard_call(struct net_device *dev,
+ struct iwreq *iwr,
+ unsigned int cmd,
+ struct iw_request_info *info,
+ iw_handler handler)
+{
+ const struct iw_ioctl_description *descr;
+ struct compat_iw_point *iwp_compat;
+ struct iw_point iwp;
+ int err;
+
+ descr = standard_ioctl + (cmd - SIOCIWFIRST);
+
+ if (descr->header_type != IW_HEADER_TYPE_POINT)
+ return ioctl_standard_call(dev, iwr, cmd, info, handler);
+
+ iwp_compat = (struct compat_iw_point *) &iwr->u.data;
+ iwp.pointer = compat_ptr(iwp_compat->pointer);
+ iwp.length = iwp_compat->length;
+ iwp.flags = iwp_compat->flags;
+
+ err = ioctl_standard_iw_point(&iwp, cmd, descr, handler, dev, info);
+
+ iwp_compat->pointer = ptr_to_compat(iwp.pointer);
+ iwp_compat->length = iwp.length;
+ iwp_compat->flags = iwp.flags;
+
+ return err;
+}
+
+int compat_wext_handle_ioctl(struct net *net, unsigned int cmd,
+ unsigned long arg)
+{
+ void __user *argp = (void __user *)arg;
+ struct iw_request_info info;
+ struct iwreq iwr;
+ char *colon;
+ int ret;
+
+ if (copy_from_user(&iwr, argp, sizeof(struct iwreq)))
+ return -EFAULT;
+
+ iwr.ifr_name[IFNAMSIZ-1] = 0;
+ colon = strchr(iwr.ifr_name, ':');
+ if (colon)
+ *colon = 0;
+
+ info.cmd = cmd;
+ info.flags = IW_REQUEST_FLAG_COMPAT;
+
+ ret = wext_ioctl_dispatch(net, (struct ifreq *) &iwr, cmd, &info,
+ compat_standard_call,
+ compat_private_call);
+
+ if (ret >= 0 &&
+ IW_IS_GET(cmd) &&
+ copy_to_user(argp, &iwr, sizeof(struct iwreq)))
+ return -EFAULT;
+
+ return ret;
+}
+#endif
--- wireless-testing.orig/include/net/wext.h 2009-09-25 11:12:26.000000000 +0200
+++ wireless-testing/include/net/wext.h 2009-09-25 11:57:13.000000000 +0200
@@ -8,21 +8,14 @@
struct net;
#ifdef CONFIG_WEXT_CORE
-extern int wext_proc_init(struct net *net);
-extern void wext_proc_exit(struct net *net);
extern int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
void __user *arg);
extern int compat_wext_handle_ioctl(struct net *net, unsigned int cmd,
unsigned long arg);
+
+struct iw_statistics *get_wireless_stats(struct net_device *dev);
+int call_commit_handler(struct net_device *dev);
#else
-static inline int wext_proc_init(struct net *net)
-{
- return 0;
-}
-static inline void wext_proc_exit(struct net *net)
-{
- return;
-}
static inline int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
void __user *arg)
{
@@ -35,4 +28,35 @@ static inline int compat_wext_handle_ioc
}
#endif
+#ifdef CONFIG_WEXT_PROC
+extern int wext_proc_init(struct net *net);
+extern void wext_proc_exit(struct net *net);
+#else
+static inline int wext_proc_init(struct net *net)
+{
+ return 0;
+}
+static inline void wext_proc_exit(struct net *net)
+{
+ return;
+}
+#endif
+
+#ifdef CONFIG_WEXT_PRIV
+int ioctl_private_call(struct net_device *dev, struct iwreq *iwr,
+ unsigned int cmd, struct iw_request_info *info,
+ iw_handler handler);
+int compat_private_call(struct net_device *dev, struct iwreq *iwr,
+ unsigned int cmd, struct iw_request_info *info,
+ iw_handler handler);
+int iw_handler_get_private(struct net_device * dev,
+ struct iw_request_info * info,
+ union iwreq_data * wrqu,
+ char * extra);
+#else
+#define ioctl_private_call NULL
+#define compat_private_call NULL
+#endif
+
+
#endif /* __NET_WEXT_H */
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ wireless-testing/net/wireless/wext-proc.c 2009-09-25 11:12:26.000000000 +0200
@@ -0,0 +1,155 @@
+/*
+ * This file implement the Wireless Extensions proc API.
+ *
+ * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
+ * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
+ *
+ * (As all part of the Linux kernel, this file is GPL)
+ */
+
+/*
+ * The /proc/net/wireless file is a human readable user-space interface
+ * exporting various wireless specific statistics from the wireless devices.
+ * This is the most popular part of the Wireless Extensions ;-)
+ *
+ * This interface is a pure clone of /proc/net/dev (in net/core/dev.c).
+ * The content of the file is basically the content of "struct iw_statistics".
+ */
+
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/wireless.h>
+#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
+#include <net/iw_handler.h>
+#include <net/wext.h>
+
+
+static void wireless_seq_printf_stats(struct seq_file *seq,
+ struct net_device *dev)
+{
+ /* Get stats from the driver */
+ struct iw_statistics *stats = get_wireless_stats(dev);
+ static struct iw_statistics nullstats = {};
+
+ /* show device if it's wireless regardless of current stats */
+ if (!stats) {
+#ifdef CONFIG_WIRELESS_EXT
+ if (dev->wireless_handlers)
+ stats = &nullstats;
+#endif
+#ifdef CONFIG_CFG80211
+ if (dev->ieee80211_ptr)
+ stats = &nullstats;
+#endif
+ }
+
+ if (stats) {
+ seq_printf(seq, "%6s: %04x %3d%c %3d%c %3d%c %6d %6d %6d "
+ "%6d %6d %6d\n",
+ dev->name, stats->status, stats->qual.qual,
+ stats->qual.updated & IW_QUAL_QUAL_UPDATED
+ ? '.' : ' ',
+ ((__s32) stats->qual.level) -
+ ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
+ stats->qual.updated & IW_QUAL_LEVEL_UPDATED
+ ? '.' : ' ',
+ ((__s32) stats->qual.noise) -
+ ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
+ stats->qual.updated & IW_QUAL_NOISE_UPDATED
+ ? '.' : ' ',
+ stats->discard.nwid, stats->discard.code,
+ stats->discard.fragment, stats->discard.retries,
+ stats->discard.misc, stats->miss.beacon);
+
+ if (stats != &nullstats)
+ stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
+ }
+}
+
+/* ---------------------------------------------------------------- */
+/*
+ * Print info for /proc/net/wireless (print all entries)
+ */
+static int wireless_dev_seq_show(struct seq_file *seq, void *v)
+{
+ might_sleep();
+
+ if (v == SEQ_START_TOKEN)
+ seq_printf(seq, "Inter-| sta-| Quality | Discarded "
+ "packets | Missed | WE\n"
+ " face | tus | link level noise | nwid "
+ "crypt frag retry misc | beacon | %d\n",
+ WIRELESS_EXT);
+ else
+ wireless_seq_printf_stats(seq, v);
+ return 0;
+}
+
+static void *wireless_dev_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ struct net *net = seq_file_net(seq);
+ loff_t off;
+ struct net_device *dev;
+
+ rtnl_lock();
+ if (!*pos)
+ return SEQ_START_TOKEN;
+
+ off = 1;
+ for_each_netdev(net, dev)
+ if (off++ == *pos)
+ return dev;
+ return NULL;
+}
+
+static void *wireless_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct net *net = seq_file_net(seq);
+
+ ++*pos;
+
+ return v == SEQ_START_TOKEN ?
+ first_net_device(net) : next_net_device(v);
+}
+
+static void wireless_dev_seq_stop(struct seq_file *seq, void *v)
+{
+ rtnl_unlock();
+}
+
+static const struct seq_operations wireless_seq_ops = {
+ .start = wireless_dev_seq_start,
+ .next = wireless_dev_seq_next,
+ .stop = wireless_dev_seq_stop,
+ .show = wireless_dev_seq_show,
+};
+
+static int seq_open_wireless(struct inode *inode, struct file *file)
+{
+ return seq_open_net(inode, file, &wireless_seq_ops,
+ sizeof(struct seq_net_private));
+}
+
+static const struct file_operations wireless_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = seq_open_wireless,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_net,
+};
+
+int wext_proc_init(struct net *net)
+{
+ /* Create /proc/net/wireless entry */
+ if (!proc_net_fops_create(net, "wireless", S_IRUGO, &wireless_seq_fops))
+ return -ENOMEM;
+
+ return 0;
+}
+
+void wext_proc_exit(struct net *net)
+{
+ proc_net_remove(net, "wireless");
+}
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ wireless-testing/net/wireless/wext-spy.c 2009-09-25 11:53:00.000000000 +0200
@@ -0,0 +1,231 @@
+/*
+ * This file implement the Wireless Extensions spy API.
+ *
+ * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
+ * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
+ *
+ * (As all part of the Linux kernel, this file is GPL)
+ */
+
+#include <linux/wireless.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <net/iw_handler.h>
+#include <net/arp.h>
+#include <net/wext.h>
+
+static inline struct iw_spy_data *get_spydata(struct net_device *dev)
+{
+ /* This is the new way */
+ if (dev->wireless_data)
+ return dev->wireless_data->spy_data;
+ return NULL;
+}
+
+int iw_handler_set_spy(struct net_device * dev,
+ struct iw_request_info * info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ struct iw_spy_data * spydata = get_spydata(dev);
+ struct sockaddr * address = (struct sockaddr *) extra;
+
+ /* Make sure driver is not buggy or using the old API */
+ if (!spydata)
+ return -EOPNOTSUPP;
+
+ /* Disable spy collection while we copy the addresses.
+ * While we copy addresses, any call to wireless_spy_update()
+ * will NOP. This is OK, as anyway the addresses are changing. */
+ spydata->spy_number = 0;
+
+ /* We want to operate without locking, because wireless_spy_update()
+ * most likely will happen in the interrupt handler, and therefore
+ * have its own locking constraints and needs performance.
+ * The rtnl_lock() make sure we don't race with the other iw_handlers.
+ * This make sure wireless_spy_update() "see" that the spy list
+ * is temporarily disabled. */
+ smp_wmb();
+
+ /* Are there are addresses to copy? */
+ if (wrqu->data.length > 0) {
+ int i;
+
+ /* Copy addresses */
+ for (i = 0; i < wrqu->data.length; i++)
+ memcpy(spydata->spy_address[i], address[i].sa_data,
+ ETH_ALEN);
+ /* Reset stats */
+ memset(spydata->spy_stat, 0,
+ sizeof(struct iw_quality) * IW_MAX_SPY);
+ }
+
+ /* Make sure above is updated before re-enabling */
+ smp_wmb();
+
+ /* Enable addresses */
+ spydata->spy_number = wrqu->data.length;
+
+ return 0;
+}
+EXPORT_SYMBOL(iw_handler_set_spy);
+
+int iw_handler_get_spy(struct net_device * dev,
+ struct iw_request_info * info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ struct iw_spy_data * spydata = get_spydata(dev);
+ struct sockaddr * address = (struct sockaddr *) extra;
+ int i;
+
+ /* Make sure driver is not buggy or using the old API */
+ if (!spydata)
+ return -EOPNOTSUPP;
+
+ wrqu->data.length = spydata->spy_number;
+
+ /* Copy addresses. */
+ for (i = 0; i < spydata->spy_number; i++) {
+ memcpy(address[i].sa_data, spydata->spy_address[i], ETH_ALEN);
+ address[i].sa_family = AF_UNIX;
+ }
+ /* Copy stats to the user buffer (just after). */
+ if (spydata->spy_number > 0)
+ memcpy(extra + (sizeof(struct sockaddr) *spydata->spy_number),
+ spydata->spy_stat,
+ sizeof(struct iw_quality) * spydata->spy_number);
+ /* Reset updated flags. */
+ for (i = 0; i < spydata->spy_number; i++)
+ spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED;
+ return 0;
+}
+EXPORT_SYMBOL(iw_handler_get_spy);
+
+/*------------------------------------------------------------------*/
+/*
+ * Standard Wireless Handler : set spy threshold
+ */
+int iw_handler_set_thrspy(struct net_device * dev,
+ struct iw_request_info *info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ struct iw_spy_data * spydata = get_spydata(dev);
+ struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
+
+ /* Make sure driver is not buggy or using the old API */
+ if (!spydata)
+ return -EOPNOTSUPP;
+
+ /* Just do it */
+ memcpy(&(spydata->spy_thr_low), &(threshold->low),
+ 2 * sizeof(struct iw_quality));
+
+ /* Clear flag */
+ memset(spydata->spy_thr_under, '\0', sizeof(spydata->spy_thr_under));
+
+ return 0;
+}
+EXPORT_SYMBOL(iw_handler_set_thrspy);
+
+/*------------------------------------------------------------------*/
+/*
+ * Standard Wireless Handler : get spy threshold
+ */
+int iw_handler_get_thrspy(struct net_device * dev,
+ struct iw_request_info *info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ struct iw_spy_data * spydata = get_spydata(dev);
+ struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
+
+ /* Make sure driver is not buggy or using the old API */
+ if (!spydata)
+ return -EOPNOTSUPP;
+
+ /* Just do it */
+ memcpy(&(threshold->low), &(spydata->spy_thr_low),
+ 2 * sizeof(struct iw_quality));
+
+ return 0;
+}
+EXPORT_SYMBOL(iw_handler_get_thrspy);
+
+/*------------------------------------------------------------------*/
+/*
+ * Prepare and send a Spy Threshold event
+ */
+static void iw_send_thrspy_event(struct net_device * dev,
+ struct iw_spy_data * spydata,
+ unsigned char * address,
+ struct iw_quality * wstats)
+{
+ union iwreq_data wrqu;
+ struct iw_thrspy threshold;
+
+ /* Init */
+ wrqu.data.length = 1;
+ wrqu.data.flags = 0;
+ /* Copy address */
+ memcpy(threshold.addr.sa_data, address, ETH_ALEN);
+ threshold.addr.sa_family = ARPHRD_ETHER;
+ /* Copy stats */
+ memcpy(&(threshold.qual), wstats, sizeof(struct iw_quality));
+ /* Copy also thresholds */
+ memcpy(&(threshold.low), &(spydata->spy_thr_low),
+ 2 * sizeof(struct iw_quality));
+
+ /* Send event to user space */
+ wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold);
+}
+
+/* ---------------------------------------------------------------- */
+/*
+ * Call for the driver to update the spy data.
+ * For now, the spy data is a simple array. As the size of the array is
+ * small, this is good enough. If we wanted to support larger number of
+ * spy addresses, we should use something more efficient...
+ */
+void wireless_spy_update(struct net_device * dev,
+ unsigned char * address,
+ struct iw_quality * wstats)
+{
+ struct iw_spy_data * spydata = get_spydata(dev);
+ int i;
+ int match = -1;
+
+ /* Make sure driver is not buggy or using the old API */
+ if (!spydata)
+ return;
+
+ /* Update all records that match */
+ for (i = 0; i < spydata->spy_number; i++)
+ if (!compare_ether_addr(address, spydata->spy_address[i])) {
+ memcpy(&(spydata->spy_stat[i]), wstats,
+ sizeof(struct iw_quality));
+ match = i;
+ }
+
+ /* Generate an event if we cross the spy threshold.
+ * To avoid event storms, we have a simple hysteresis : we generate
+ * event only when we go under the low threshold or above the
+ * high threshold. */
+ if (match >= 0) {
+ if (spydata->spy_thr_under[match]) {
+ if (wstats->level > spydata->spy_thr_high.level) {
+ spydata->spy_thr_under[match] = 0;
+ iw_send_thrspy_event(dev, spydata,
+ address, wstats);
+ }
+ } else {
+ if (wstats->level < spydata->spy_thr_low.level) {
+ spydata->spy_thr_under[match] = 1;
+ iw_send_thrspy_event(dev, spydata,
+ address, wstats);
+ }
+ }
+ }
+}
+EXPORT_SYMBOL(wireless_spy_update);
--- wireless-testing.orig/drivers/net/wireless/Kconfig 2009-09-25 11:12:25.000000000 +0200
+++ wireless-testing/drivers/net/wireless/Kconfig 2009-09-25 11:31:13.000000000 +0200
@@ -68,6 +68,8 @@ config WAVELAN
tristate "AT&T/Lucent old WaveLAN & DEC RoamAbout DS ISA support"
depends on ISA && WLAN_PRE80211
select WIRELESS_EXT
+ select WEXT_SPY
+ select WEXT_PRIV
---help---
The Lucent WaveLAN (formerly NCR and AT&T; or DEC RoamAbout DS) is
a Radio LAN (wireless Ethernet-like Local Area Network) using the
@@ -91,6 +93,8 @@ config PCMCIA_WAVELAN
tristate "AT&T/Lucent old WaveLAN Pcmcia wireless support"
depends on PCMCIA && WLAN_PRE80211
select WIRELESS_EXT
+ select WEXT_SPY
+ select WEXT_PRIV
help
Say Y here if you intend to attach an AT&T/Lucent Wavelan PCMCIA
(PC-card) wireless Ethernet networking card to your computer. This
@@ -103,6 +107,7 @@ config PCMCIA_NETWAVE
tristate "Xircom Netwave AirSurfer Pcmcia wireless support"
depends on PCMCIA && WLAN_PRE80211
select WIRELESS_EXT
+ select WEXT_PRIV
help
Say Y here if you intend to attach this type of PCMCIA (PC-card)
wireless Ethernet networking card to your computer.
@@ -124,6 +129,8 @@ config PCMCIA_RAYCS
tristate "Aviator/Raytheon 2.4GHz wireless support"
depends on PCMCIA && WLAN_80211
select WIRELESS_EXT
+ select WEXT_SPY
+ select WEXT_PRIV
---help---
Say Y here if you intend to attach an Aviator/Raytheon PCMCIA
(PC-card) wireless Ethernet networking card to your computer.
@@ -137,6 +144,7 @@ config LIBERTAS
tristate "Marvell 8xxx Libertas WLAN driver support"
depends on WLAN_80211
select WIRELESS_EXT
+ select WEXT_SPY
select LIB80211
select FW_LOADER
---help---
@@ -191,6 +199,8 @@ config AIRO
depends on ISA_DMA_API && WLAN_80211 && (PCI || BROKEN)
select WIRELESS_EXT
select CRYPTO
+ select WEXT_SPY
+ select WEXT_PRIV
---help---
This is the standard Linux driver to support Cisco/Aironet ISA and
PCI 802.11 wireless cards.
@@ -208,6 +218,7 @@ config ATMEL
tristate "Atmel at76c50x chipset 802.11b support"
depends on (PCI || PCMCIA) && WLAN_80211
select WIRELESS_EXT
+ select WEXT_PRIV
select FW_LOADER
select CRC32
---help---
@@ -267,18 +278,21 @@ config AIRO_CS
Cisco Linux utilities can be used to configure the card.
config PCMCIA_WL3501
- tristate "Planet WL3501 PCMCIA cards"
- depends on EXPERIMENTAL && PCMCIA && WLAN_80211
- select WIRELESS_EXT
- ---help---
- A driver for WL3501 PCMCIA 802.11 wireless cards made by Planet.
- It has basic support for Linux wireless extensions and initial
- micro support for ethtool.
+ tristate "Planet WL3501 PCMCIA cards"
+ depends on EXPERIMENTAL && PCMCIA && WLAN_80211
+ select WIRELESS_EXT
+ select WEXT_SPY
+ help
+ A driver for WL3501 PCMCIA 802.11 wireless cards made by Planet.
+ It has basic support for Linux wireless extensions and initial
+ micro support for ethtool.
config PRISM54
tristate 'Intersil Prism GT/Duette/Indigo PCI/Cardbus (DEPRECATED)'
depends on PCI && EXPERIMENTAL && WLAN_80211
select WIRELESS_EXT
+ select WEXT_SPY
+ select WEXT_PRIV
select FW_LOADER
---help---
This enables support for FullMAC PCI/Cardbus prism54 devices. This
@@ -301,6 +315,7 @@ config USB_ZD1201
tristate "USB ZD1201 based Wireless device support"
depends on USB && WLAN_80211
select WIRELESS_EXT
+ select WEXT_PRIV
select FW_LOADER
---help---
Say Y if you want to use wireless LAN adapters based on the ZyDAS
--- wireless-testing.orig/drivers/net/wireless/hostap/Kconfig 2009-09-25 11:12:25.000000000 +0200
+++ wireless-testing/drivers/net/wireless/hostap/Kconfig 2009-09-25 11:31:46.000000000 +0200
@@ -2,6 +2,8 @@ config HOSTAP
tristate "IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)"
depends on WLAN_80211
select WIRELESS_EXT
+ select WEXT_SPY
+ select WEXT_PRIV
select CRYPTO
select CRYPTO_ARC4
select CRYPTO_ECB
--- wireless-testing.orig/drivers/net/wireless/ipw2x00/Kconfig 2009-09-25 11:12:25.000000000 +0200
+++ wireless-testing/drivers/net/wireless/ipw2x00/Kconfig 2009-09-25 11:31:35.000000000 +0200
@@ -6,6 +6,8 @@ config IPW2100
tristate "Intel PRO/Wireless 2100 Network Connection"
depends on PCI && WLAN_80211 && CFG80211
select WIRELESS_EXT
+ select WEXT_SPY
+ select WEXT_PRIV
select FW_LOADER
select LIB80211
select LIBIPW
@@ -65,6 +67,8 @@ config IPW2200
tristate "Intel PRO/Wireless 2200BG and 2915ABG Network Connection"
depends on PCI && WLAN_80211 && CFG80211
select WIRELESS_EXT
+ select WEXT_SPY
+ select WEXT_PRIV
select FW_LOADER
select LIB80211
select LIBIPW
@@ -152,6 +156,7 @@ config LIBIPW
tristate
depends on PCI && WLAN_80211 && CFG80211
select WIRELESS_EXT
+ select WEXT_SPY
select CRYPTO
select CRYPTO_ARC4
select CRYPTO_ECB
--- wireless-testing.orig/drivers/net/wireless/orinoco/Kconfig 2009-09-25 11:12:26.000000000 +0200
+++ wireless-testing/drivers/net/wireless/orinoco/Kconfig 2009-09-25 11:32:03.000000000 +0200
@@ -3,6 +3,8 @@ config HERMES
depends on (PPC_PMAC || PCI || PCMCIA) && WLAN_80211
depends on CFG80211
select WIRELESS_EXT
+ select WEXT_SPY
+ select WEXT_PRIV
select FW_LOADER
select CRYPTO
select CRYPTO_MICHAEL_MIC
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ wireless-testing/net/wireless/wext-priv.c 2009-09-25 11:57:27.000000000 +0200
@@ -0,0 +1,248 @@
+/*
+ * This file implement the Wireless Extensions core API.
+ *
+ * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
+ * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * (As all part of the Linux kernel, this file is GPL)
+ */
+#include <linux/wireless.h>
+#include <linux/netdevice.h>
+#include <net/iw_handler.h>
+#include <net/wext.h>
+
+int iw_handler_get_private(struct net_device * dev,
+ struct iw_request_info * info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ /* Check if the driver has something to export */
+ if ((dev->wireless_handlers->num_private_args == 0) ||
+ (dev->wireless_handlers->private_args == NULL))
+ return -EOPNOTSUPP;
+
+ /* Check if there is enough buffer up there */
+ if (wrqu->data.length < dev->wireless_handlers->num_private_args) {
+ /* User space can't know in advance how large the buffer
+ * needs to be. Give it a hint, so that we can support
+ * any size buffer we want somewhat efficiently... */
+ wrqu->data.length = dev->wireless_handlers->num_private_args;
+ return -E2BIG;
+ }
+
+ /* Set the number of available ioctls. */
+ wrqu->data.length = dev->wireless_handlers->num_private_args;
+
+ /* Copy structure to the user buffer. */
+ memcpy(extra, dev->wireless_handlers->private_args,
+ sizeof(struct iw_priv_args) * wrqu->data.length);
+
+ return 0;
+}
+
+/* Size (in bytes) of the various private data types */
+static const char iw_priv_type_size[] = {
+ 0, /* IW_PRIV_TYPE_NONE */
+ 1, /* IW_PRIV_TYPE_BYTE */
+ 1, /* IW_PRIV_TYPE_CHAR */
+ 0, /* Not defined */
+ sizeof(__u32), /* IW_PRIV_TYPE_INT */
+ sizeof(struct iw_freq), /* IW_PRIV_TYPE_FLOAT */
+ sizeof(struct sockaddr), /* IW_PRIV_TYPE_ADDR */
+ 0, /* Not defined */
+};
+
+static int get_priv_size(__u16 args)
+{
+ int num = args & IW_PRIV_SIZE_MASK;
+ int type = (args & IW_PRIV_TYPE_MASK) >> 12;
+
+ return num * iw_priv_type_size[type];
+}
+
+static int adjust_priv_size(__u16 args, struct iw_point *iwp)
+{
+ int num = iwp->length;
+ int max = args & IW_PRIV_SIZE_MASK;
+ int type = (args & IW_PRIV_TYPE_MASK) >> 12;
+
+ /* Make sure the driver doesn't goof up */
+ if (max < num)
+ num = max;
+
+ return num * iw_priv_type_size[type];
+}
+
+/*
+ * Wrapper to call a private Wireless Extension handler.
+ * We do various checks and also take care of moving data between
+ * user space and kernel space.
+ * It's not as nice and slimline as the standard wrapper. The cause
+ * is struct iw_priv_args, which was not really designed for the
+ * job we are going here.
+ *
+ * IMPORTANT : This function prevent to set and get data on the same
+ * IOCTL and enforce the SET/GET convention. Not doing it would be
+ * far too hairy...
+ * If you need to set and get data at the same time, please don't use
+ * a iw_handler but process it in your ioctl handler (i.e. use the
+ * old driver API).
+ */
+static int get_priv_descr_and_size(struct net_device *dev, unsigned int cmd,
+ const struct iw_priv_args **descrp)
+{
+ const struct iw_priv_args *descr;
+ int i, extra_size;
+
+ descr = NULL;
+ for (i = 0; i < dev->wireless_handlers->num_private_args; i++) {
+ if (cmd == dev->wireless_handlers->private_args[i].cmd) {
+ descr = &dev->wireless_handlers->private_args[i];
+ break;
+ }
+ }
+
+ extra_size = 0;
+ if (descr) {
+ if (IW_IS_SET(cmd)) {
+ int offset = 0; /* For sub-ioctls */
+ /* Check for sub-ioctl handler */
+ if (descr->name[0] == '\0')
+ /* Reserve one int for sub-ioctl index */
+ offset = sizeof(__u32);
+
+ /* Size of set arguments */
+ extra_size = get_priv_size(descr->set_args);
+
+ /* Does it fits in iwr ? */
+ if ((descr->set_args & IW_PRIV_SIZE_FIXED) &&
+ ((extra_size + offset) <= IFNAMSIZ))
+ extra_size = 0;
+ } else {
+ /* Size of get arguments */
+ extra_size = get_priv_size(descr->get_args);
+
+ /* Does it fits in iwr ? */
+ if ((descr->get_args & IW_PRIV_SIZE_FIXED) &&
+ (extra_size <= IFNAMSIZ))
+ extra_size = 0;
+ }
+ }
+ *descrp = descr;
+ return extra_size;
+}
+
+static int ioctl_private_iw_point(struct iw_point *iwp, unsigned int cmd,
+ const struct iw_priv_args *descr,
+ iw_handler handler, struct net_device *dev,
+ struct iw_request_info *info, int extra_size)
+{
+ char *extra;
+ int err;
+
+ /* Check what user space is giving us */
+ if (IW_IS_SET(cmd)) {
+ if (!iwp->pointer && iwp->length != 0)
+ return -EFAULT;
+
+ if (iwp->length > (descr->set_args & IW_PRIV_SIZE_MASK))
+ return -E2BIG;
+ } else if (!iwp->pointer)
+ return -EFAULT;
+
+ extra = kmalloc(extra_size, GFP_KERNEL);
+ if (!extra)
+ return -ENOMEM;
+
+ /* If it is a SET, get all the extra data in here */
+ if (IW_IS_SET(cmd) && (iwp->length != 0)) {
+ if (copy_from_user(extra, iwp->pointer, extra_size)) {
+ err = -EFAULT;
+ goto out;
+ }
+ }
+
+ /* Call the handler */
+ err = handler(dev, info, (union iwreq_data *) iwp, extra);
+
+ /* If we have something to return to the user */
+ if (!err && IW_IS_GET(cmd)) {
+ /* Adjust for the actual length if it's variable,
+ * avoid leaking kernel bits outside.
+ */
+ if (!(descr->get_args & IW_PRIV_SIZE_FIXED))
+ extra_size = adjust_priv_size(descr->get_args, iwp);
+
+ if (copy_to_user(iwp->pointer, extra, extra_size))
+ err = -EFAULT;
+ }
+
+out:
+ kfree(extra);
+ return err;
+}
+
+int ioctl_private_call(struct net_device *dev, struct iwreq *iwr,
+ unsigned int cmd, struct iw_request_info *info,
+ iw_handler handler)
+{
+ int extra_size = 0, ret = -EINVAL;
+ const struct iw_priv_args *descr;
+
+ extra_size = get_priv_descr_and_size(dev, cmd, &descr);
+
+ /* Check if we have a pointer to user space data or not. */
+ if (extra_size == 0) {
+ /* No extra arguments. Trivial to handle */
+ ret = handler(dev, info, &(iwr->u), (char *) &(iwr->u));
+ } else {
+ ret = ioctl_private_iw_point(&iwr->u.data, cmd, descr,
+ handler, dev, info, extra_size);
+ }
+
+ /* Call commit handler if needed and defined */
+ if (ret == -EIWCOMMIT)
+ ret = call_commit_handler(dev);
+
+ return ret;
+}
+
+#ifdef CONFIG_COMPAT
+int compat_private_call(struct net_device *dev, struct iwreq *iwr,
+ unsigned int cmd, struct iw_request_info *info,
+ iw_handler handler)
+{
+ const struct iw_priv_args *descr;
+ int ret, extra_size;
+
+ extra_size = get_priv_descr_and_size(dev, cmd, &descr);
+
+ /* Check if we have a pointer to user space data or not. */
+ if (extra_size == 0) {
+ /* No extra arguments. Trivial to handle */
+ ret = handler(dev, info, &(iwr->u), (char *) &(iwr->u));
+ } else {
+ struct compat_iw_point *iwp_compat;
+ struct iw_point iwp;
+
+ iwp_compat = (struct compat_iw_point *) &iwr->u.data;
+ iwp.pointer = compat_ptr(iwp_compat->pointer);
+ iwp.length = iwp_compat->length;
+ iwp.flags = iwp_compat->flags;
+
+ ret = ioctl_private_iw_point(&iwp, cmd, descr,
+ handler, dev, info, extra_size);
+
+ iwp_compat->pointer = ptr_to_compat(iwp.pointer);
+ iwp_compat->length = iwp.length;
+ iwp_compat->flags = iwp.flags;
+ }
+
+ /* Call commit handler if needed and defined */
+ if (ret == -EIWCOMMIT)
+ ret = call_commit_handler(dev);
+
+ return ret;
+}
+#endif
--- wireless-testing.orig/include/net/iw_handler.h 2009-09-25 11:26:28.000000000 +0200
+++ wireless-testing/include/net/iw_handler.h 2009-09-25 11:27:17.000000000 +0200
@@ -323,18 +323,19 @@ typedef int (*iw_handler)(struct net_dev
*/
struct iw_handler_def
{
- /* Number of handlers defined (more precisely, index of the
- * last defined handler + 1) */
- __u16 num_standard;
- __u16 num_private;
- /* Number of private arg description */
- __u16 num_private_args;
/* Array of handlers for standard ioctls
* We will call dev->wireless_handlers->standard[ioctl - SIOCSIWCOMMIT]
*/
const iw_handler * standard;
+ /* Number of handlers defined (more precisely, index of the
+ * last defined handler + 1) */
+ __u16 num_standard;
+#ifdef CONFIG_WEXT_PRIV
+ __u16 num_private;
+ /* Number of private arg description */
+ __u16 num_private_args;
/* Array of handlers for private ioctls
* Will call dev->wireless_handlers->private[ioctl - SIOCIWFIRSTPRIV]
*/
@@ -344,6 +345,7 @@ struct iw_handler_def
* can put it in any order you want and should not leave holes...
* We will automatically export that to user space... */
const struct iw_priv_args * private_args;
+#endif
/* New location of get_wireless_stats, to de-bloat struct net_device.
* The old pointer in struct net_device will be gradually phased
^ permalink raw reply
* Re: ar9170 makes machine hang when shut down
From: Malte Gell @ 2009-09-25 9:32 UTC (permalink / raw)
To: linux-wireless
In-Reply-To: <4ABBE5DB.5070201@gmx.de>
Joerg Albert <jal2@gmx.de> wrote
> > Does it make sense to use "rmmod --force ar9170" to force removing that
> > module before shutting down?
>
> Why are you sure that the hang is caused by the ar9170 driver?
You are right.... I thought this way, because my machine never hung and after
installing the USB stick it hang... But, I noticed when i disable ISDN
subsystem, it did not hang, so maybe it is the ISDN subsystem, I will try
further.
> The vendor driver is called arusb_lnx, the new one ar9170usb
Vendor driver? Does this mean, Atheros made a driver on its own? Are there
several drivers for the same chip now?
My system loads ar9170:
lsmod | grep ar91*
ar9170 32632 0
mac80211 237208 1 ar9170
led_class 4028 1 ar9170
usbcore 183280 15
usbserial,ar9170,usbhid,uvcvideo,snd_usb_audio,snd_usb_lib,usblp,ehci_hcd,uhci_hcd,ohci_hcd,usb_storage
Regards
Malte
^ permalink raw reply
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