Commit Graph

281 Commits

Author SHA1 Message Date
John W. Linville
274bfb8dc5 lib80211: absorb crypto bits from net/ieee80211
These bits are shared already between ipw2x00 and hostap, and could
probably be shared both more cleanly and with other drivers.  This
commit simply relocates the code to lib80211 and adjusts the drivers
appropriately.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-11-21 11:08:17 -05:00
Holger Schurig
2a941ecb51 wireless: fix two bad print_ssid conversions
This patch fixes two current compilation problems. They showed up
with CONFIG_IEEE80211_DEBUG defined.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-11-10 15:17:33 -05:00
David S. Miller
d2ad3ca88d net/: Kill now superfluous ->last_rx stores.
The generic packet receive code takes care of setting
netdev->last_rx when necessary, for the sake of the
bonding ARP monitor.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-03 22:01:07 -08:00
John W. Linville
7211801527 wireless: avoid some net/ieee80211.h vs. linux/ieee80211.h conflicts
There is quite a lot of overlap in definitions between these headers...

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-31 19:00:50 -04:00
John W. Linville
9387b7caf3 wireless: use individual buffers for printing ssid values
Also change escape_ssid to print_ssid to match print_mac semantics.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-31 19:00:50 -04:00
John W. Linville
c5d3dce875 wireless: remove NETWORK_EMPTY_ESSID flag
It is unnecessary and of questionable value.  Also remove
is_empty_ssid, as it is also unnecessary.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-31 19:00:48 -04:00
John W. Linville
7e272fcff6 wireless: consolidate on a single escape_essid implementation
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-31 19:00:46 -04:00
Johannes Berg
4acf074971 make ieee80211 invisible
This makes CONFIG_IEEE80211 invisible. The drivers that require it
(ipw2100, ipw2200, hostap) select it, and everybody else really
shouldn't even think about using it. Also, since there really is
no point in compiling anything without crypto support these days,
remove the crypto options and just enable them, leaving only the
debugging option which only shows up when a driver is select that
requires it. This makes it hard to enable, but most people wouldn't
want to anyway.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-31 19:00:25 -04:00
Johannes Berg
e174961ca1 net: convert print_mac to %pM
This converts pretty much everything to print_mac. There were
a few things that had conflicts which I have just dropped for
now, no harm done.

I've built an allyesconfig with this and looked at the files
that weren't built very carefully, but it's a huge patch.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-27 17:06:18 -07:00
Julia Lawall
d92a8e81e0 net/ieee80211: adjust error handling
Converts a test in error handling code to a sequence of labels.

The semantic match that found the problem is:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression E,E1,E2;
@@

E = alloc_etherdev(...)
... when != E = E1
if (...) { ... free_netdev(E); ... return ...; }
... when != E = E2
(
  if (...)
   {
   ... when != free_netdev(E);
   return dev; }
|
* if (...)
   {
   ... when != free_netdev(E);
   return ...; }
|
register_netdev(E)
)

// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-22 16:29:49 -04:00
David S. Miller
ccc580571c wext: Emit event stream entries correctly when compat.
Three major portions to this change:

1) Add IW_EV_COMPAT_LCP_LEN, IW_EV_COMPAT_POINT_OFF,
   and IW_EV_COMPAT_POINT_LEN helper defines.

2) Delete iw_stream_check_add_*(), they are unused.

3) Add iw_request_info argument to iwe_stream_add_*(), and use it to
   size the event and pointer lengths correctly depending upon whether
   IW_REQUEST_FLAG_COMPAT is set or not.

4) The mechanical transformations to the drivers and wireless stack
   bits to get the iw_request_info passed down into the routines
   modified in #3.  Also, explicit references to IW_EV_LCP_LEN are
   replaced with iwe_stream_lcp_len(info).

With a lot of help and bug fixes from Masakazu Mokuno.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 18:50:49 -07:00
Bruno Randolf
566bfe5a8b mac80211: use hardware flags for signal/noise units
trying to clean up the signal/noise code. the previous code in mac80211 had
confusing names for the related variables, did not have much definition of
what units of signal and noise were provided and used implicit mechanisms from
the wireless extensions.

this patch introduces hardware capability flags to let the hardware specify
clearly if it can provide signal and noise level values and which units it can
provide. this also anticipates possible new units like RCPI in the future.

for signal:

  IEEE80211_HW_SIGNAL_UNSPEC - unspecified, unknown, hw specific
  IEEE80211_HW_SIGNAL_DB     - dB difference to unspecified reference point
  IEEE80211_HW_SIGNAL_DBM    - dBm, difference to 1mW

for noise we currently only have dBm:

  IEEE80211_HW_NOISE_DBM     - dBm, difference to 1mW

if IEEE80211_HW_SIGNAL_UNSPEC or IEEE80211_HW_SIGNAL_DB is used the driver has
to provide the maximum value (max_signal) it reports in order for applications
to make sense of the signal values.

i tried my best to find out for each driver what it can provide and update it
but i'm not sure (?) for some of them and used the more conservative guess in
doubt. this can be fixed easily after this patch has been merged by changing
the hardware flags of the driver.

DRIVER          SIGNAL    MAX	NOISE   QUAL
-----------------------------------------------------------------
adm8211         unspec(?) 100   n/a     missing
at76_usb        unspec(?) (?)   unused  missing
ath5k           dBm             dBm     percent rssi
b43legacy       dBm             dBm     percent jssi(?)
b43             dBm             dBm     percent jssi(?)
iwl-3945        dBm             dBm     percent snr+more
iwl-4965        dBm             dBm     percent snr+more
p54             unspec    127   n/a     missing
rt2x00          dBm	        n/a     percent rssi+tx/rx frame success
  rt2400        dBm             n/a
  rt2500pci     dBm             n/a
  rt2500usb     dBm             n/a
  rt61pci       dBm             n/a
  rt73usb       dBm             n/a
rtl8180         unspec(?) 65    n/a     (?)
rtl8187         unspec(?) 65    (?)     noise(?)
zd1211          dB(?)     100   n/a     percent

drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-14 16:29:49 -04:00
Adrian Bunk
7eafd25d95 remove ieee80211_wx_{get,set}_auth()
After the bcm43xx removal ieee80211_wx_{get,set}_auth() were no longer
used.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07 15:02:14 -04:00
Adrian Bunk
c12cf21097 remove ieee80211_tx_frame()
After the softmac removal ieee80211_tx_frame() was no longer used.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07 15:02:14 -04:00
David S. Miller
df39e8ba56 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/ehea/ehea_main.c
	drivers/net/wireless/iwlwifi/Kconfig
	drivers/net/wireless/rt2x00/rt61pci.c
	net/ipv4/inet_timewait_sock.c
	net/ipv6/raw.c
	net/mac80211/ieee80211_sta.c
2008-04-14 02:30:23 -07:00
David S. Miller
21f644f3ea [NET]: Undo code bloat in hot paths due to print_mac().
If print_mac() is used inside of a pr_debug() the compiler
can't see that the call is redundant so still performs it
even of pr_debug() ends up being a nop.

So don't use print_mac() in such cases in hot code paths,
use MAC_FMT et al. instead.

As noted by Joe Perches, pr_debug() could be modified to
handle this better, but that is a change to an interface
used by the entire kernel and thus needs to be validated
carefully.  This here is thus the less risky fix for
2.6.25

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-08 16:50:44 -07:00
Adrian Bunk
7524d7d6de the scheduled ieee80211 softmac removal
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-13 16:02:31 -04:00
Harvey Harrison
0dc47877a3 net: replace remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 20:47:47 -08:00
Al Viro
8524f59d47 ieee80211: beacon->capability is little-endian
It's only a debugging printk, so it went unnoticed; still, the
fix is trivial, so...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:08:48 -08:00
Al Viro
d9e94d5647 ieee80211: fix misannotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:08:48 -08:00
Al Viro
c414e84b22 ieee80211softmac_auth_resp() fix
The struct ieee8021_auth * passed to it comes straight from skb->data
without any conversions; members of the struct are little-endian, so
we'd better take that into account when doing switch by auth->algorithm,
etc.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:08:47 -08:00
Al Viro
b16f13d00c several missing cpu_to_le16() in ieee80211softmac_capabilities()
on some codepaths we forgot to convert to little-endian as we do on the
rest of them and as the caller expects from us.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:08:46 -08:00
Al Viro
8fffc15dc7 eliminate byteswapping in struct ieee80211_qos_parameters
Make it match the on-the-wire endianness, eliminate byteswapping.
The only driver that used this sucker (ipw2200) updated.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:08:45 -08:00
Roel Kluin
f59d978275 wireless: fix '!x & y' typo's
Fix priority mistakes similar to '!x & y'

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:03:35 -08:00
YOSHIFUJI Hideaki
4e39430ae3 [IEEE80211]: Use htons() where appropriate.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 14:58:02 -08:00
John W. Linville
edae58ead5 softmac: mark as obsolete and schedule for removal
Schedule softmac for for removal in the 2.6.26 development window.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 14:55:36 -08:00
Pavel Emelyanov
b24b8a247f [NET]: Convert init_timer into setup_timer
Many-many code in the kernel initialized the timer->function
and  timer->data together with calling init_timer(timer). There
is already a helper for this. Use it for networking code.

The patch is HUGE, but makes the code 130 lines shorter
(98 insertions(+), 228 deletions(-)).

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 14:53:35 -08:00
Herbert Xu
75e7766680 Merge branch 'fixes-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2007-11-30 23:29:27 +11:00
Daniel Drake
01e1f045e6 ieee80211: fix unaligned access in ieee80211_copy_snap
There is no guarantee that data+SNAP_SIZE will reside on an even numbered
address, so doing a 16 bit read will cause an unaligned access in some
situations. Based on a patch from Jun Sun.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-11-29 18:08:47 -05:00
Guillaume Chazarain
92468c53cf ieee80211: Stop net_ratelimit/IEEE80211_DEBUG_DROP log pollution
if (net_ratelimit())
	IEEE80211_DEBUG_DROP(...)

can pollute the logs with messages like:

printk: 1 messages suppressed.
printk: 2 messages suppressed.
printk: 7 messages suppressed.

if debugging information is disabled. These messages are printed by
net_ratelimit(). Add a wrapper to net_ratelimit() that takes into account
the log level, so that net_ratelimit() is called only when we really want
to print something.

Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-11-20 16:43:17 -05:00
Johannes Berg
94e10bfb8a softmac: fix wext MLME request reason code endianness
The MLME request reason code is host-endian and our passing
it to the low level functions is host-endian as well since
they do the swapping. I noticed that the reason code 768 was
sent (0x300) rather than 3 when wpa_supplicant terminates.
This removes the superfluous cpu_to_le16() call.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-11-10 21:58:41 -08:00
Jiri Olsa
40208d71e0 [NET]: Removing duplicit #includes
Removing duplicit #includes for net/

Signed-off-by: Jiri Olsa <olsajiri@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07 04:11:44 -08:00
Adrian Bunk
87ae9afdca cleanup asm/scatterlist.h includes
Not architecture specific code should not #include <asm/scatterlist.h>.

This patch therefore either replaces them with
#include <linux/scatterlist.h> or simply removes them if they were
unused.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-11-02 08:47:06 +01:00
Jens Axboe
642f149031 SG: Change sg_set_page() to take length and offset argument
Most drivers need to set length and offset as well, so may as well fold
those three lines into one.

Add sg_assign_page() for those two locations that only needed to set
the page, where the offset/length is set outside of the function context.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-24 11:20:47 +02:00
Geert Uytterhoeven
5a1cb47ff4 m68k: sg fallout
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
2007-10-24 08:55:40 +02:00
Ralf Baechle
117636092a [PATCH] Fix breakage after SG cleanups
Commits

  58b053e4ce ("Update arch/ to use sg helpers")
  45711f1af6 ("[SG] Update drivers to use sg helpers")
  fa05f1286b ("Update net/ to use sg helpers")

converted many files to use the scatter gather helpers without ensuring
that the necessary headerfile <linux/scatterlist> is included.  This
happened to work for ia64, powerpc, sparc64 and x86 because they
happened to drag in that file via their <asm/dma-mapping.h>.

On most of the others this probably broke.

Instead of increasing the header file spider web I choose to include
<linux/scatterlist.h> directly into the affectes files.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23 12:02:39 -07:00
Jens Axboe
fa05f1286b Update net/ to use sg helpers
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22 21:19:56 +02:00
Jean Delvare
c03983ac9b Spelling fix: explicitly
From: Jean Delvare <khali@linux-fr.org>

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 23:22:55 +02:00
Johannes Berg
e797aa1b7d [PATCH] ieee80211: fix TKIP QoS bug
The commit 65b6a277 titled "ieee80211: Fix header->qos_ctl endian issue"
*introduced* an endianness bug. Partially revert it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-10-16 20:58:12 -04:00
Johannes Berg
501d857ec9 [IEEE80211]: Fix softmac lockdep reports.
It seems I was actually able to hit this deadlock, on my quad G5 softmac
locks up more often than not. This fixes it by using an own workqueue
that can safely be flushed under RTNL.

Not sure if the patch is correct with the workqueue naming. And don't
think with the patch it doesn't continually lock up. It still does, just
doesn't invoke lockdep warnings all the time.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:52:22 -07:00
Joe Perches
0795af5729 [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()
This is nicer than the MAC_FMT stuff.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:42 -07:00
Eric W. Biederman
457c4cbc5a [NET]: Make /proc/net per network namespace
This patch makes /proc/net per network namespace.  It modifies the global
variables proc_net and proc_net_stat to be per network namespace.
The proc_net file helpers are modified to take a network namespace argument,
and all of their callers are fixed to pass &init_net for that argument.
This ensures that all of the /proc/net files are only visible and
usable in the initial network namespace until the code behind them
has been updated to be handle multiple network namespaces.

Making /proc/net per namespace is necessary as at least some files
in /proc/net depend upon the set of network devices which is per
network namespace, and even more files in /proc/net have contents
that are relevant to a single network namespace.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:06 -07:00
Ilpo Järvinen
172589ccdd [NET]: DIV_ROUND_UP cleanup (part two)
Hopefully captured all single statement cases under net/. I'm
not too sure if there is some policy about #includes that are
"guaranteed" (ie., in the current tree) to be available through
some other #included header, so I just added linux/kernel.h to
each changed file that didn't #include it previously.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:48:37 -07:00
Jeff Garzik
5c55c43491 Merge branch 'fixes-jgarzik' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes 2007-10-03 13:39:16 -04:00
Richard Knutsson
ee0a8169b6 [PATCH] softmac: Fix compiler-warning
CC      net/ieee80211/softmac/ieee80211softmac_wx.o
/home/kernel/src/net/ieee80211/softmac/ieee80211softmac_wx.c: In function ‘ieee80211softmac_wx_set_essid’:
/home/kernel/src/net/ieee80211/softmac/ieee80211softmac_wx.c:117: warning: label ‘out’ defined but not used

due to commit: efe870f9f4. Removing the label.

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-10-02 19:41:33 -04:00
John W. Linville
04045f98e0 [IEEE80211]: avoid integer underflow for runt rx frames
Reported by Chris Evans <scarybeasts@gmail.com>:

> The summary is that an evil 80211 frame can crash out a victim's
> machine. It only applies to drivers using the 80211 wireless code, and
> only then to certain drivers (and even then depends on a card's
> firmware not dropping a dubious packet). I must confess I'm not
> keeping track of Linux wireless support, and the different protocol
> stacks etc.
>
> Details are as follows:
>
> ieee80211_rx() does not explicitly check that "skb->len >= hdrlen".
> There are other skb->len checks, but not enough to prevent a subtle
> off-by-two error if the frame has the IEEE80211_STYPE_QOS_DATA flag
> set.
>
> This leads to integer underflow and crash here:
>
> if (frag != 0)
>    flen -= hdrlen;
>
> (flen is subsequently used as a memcpy length parameter).

How about this?

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-01 21:03:54 -07:00
Larry Finger
efe870f9f4 [PATCH] softmac: Fix inability to associate with WEP networks
Commit 4cf92a3c was submitted as a fix for bug #8686 at bugzilla.kernel.org
(http://bugzilla.kernel.org/show_bug.cgi?id=8686). Unfortunately, the fix led to
a new bug, reported by Yoshifuji Hideaki, that prevented association for WEP
encrypted networks that use ifconfig to control the device. This patch effectively
reverts the earlier commit and does a proper fix for bug #8686.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-09-21 11:26:33 -04:00
Michael Buesch
fdc8f43b5e [PATCH] softmac: Fix deadlock of wx_set_essid with assoc work
The essid wireless extension does deadlock against the assoc mutex,
as we don't unlock the assoc mutex when flushing the workqueue, which
also holds the lock.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-08-06 15:06:03 -04:00
Jean Tourrilhes
90869b249b [PATCH] softmac: Channel is listed twice in scan output
SoftMAC outputs the channel twice in the scan output. It should
display frequency and channel, but only once for each.

Signed-off-by: Jean Tourrilhes <jt@hpl.hp.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-17 21:56:17 -04:00
Jean Tourrilhes
4cf92a3cd9 [PATCH] softmac: Fix ESSID problem
Victor Porton reported that the SoftMAC layer had random problem when setting the ESSID :
http://bugzilla.kernel.org/show_bug.cgi?id=8686 After investigation, it turned out to be
worse, the SoftMAC layer is left in an inconsistent state. The fix is pretty trivial.

Signed-off-by: Jean Tourrilhes <jt@hpl.hp.com>
Acked-by: Michael Buesch <mb@bu3sch.df>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-10 14:27:00 -04:00