Commit graph

111090 commits

Author SHA1 Message Date
Harald Welte
fb4cb772c0 ALSA: HDA patch_via.c: Fix inversion of surround and side channels
In the current driver, there is a consistent mistake between the SURROUND and
the SIDE channels.  This patch fixes it.

Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 18:52:00 +02:00
Harald Welte
76d9b0dd78 ALSA: HDA patch_via.c: HP and CD pin connect config
Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 18:51:59 +02:00
Harald Welte
eb14a46cf9 ALSA: HDA patch_via.c: cleanup
* add extra parenthesis to make code more readable
* use kzalloc() for alloc+zero rather than kcalloc()
* ensure that AUTO_SEQ_* starts at 0

Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 18:51:58 +02:00
Uwe Kleine-König
e8f18ae558 ALSA: fix section for sa11xx-uda1341 platform driver
Don't use __init but __devinit to define probe function.  A pointer to
sa11xx_uda1341_probe is passed to the core via platform_driver_register
and so the function must not disappear after the module is loaded.  Using
__init and having HOTPLUG=y and SND_SA11XX_UDA1341=m the following
probably oopses:

	echo -n sa11xx_uda1341.1 > /sys/bus/platform/driver/sa11xx_uda1341/unbind
	echo -n sa11xx_uda1341.1 > /sys/bus/platform/driver/sa11xx_uda1341/bind

Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Brian Avery <b.avery@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 18:51:56 +02:00
Matthew Ranostay
e99d32b325 ALSA: hda - add missing slave_dig_outs for 92HD73bxx
Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 18:51:51 +02:00
Herbert Xu
225f40055f ipsec: Restore larval states and socket policies in dump
The commit commit 4c563f7669 ("[XFRM]:
Speed up xfrm_policy and xfrm_state walking") inadvertently removed
larval states and socket policies from netlink dumps.  This patch
restores them.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-09 05:23:37 -07:00
Peter Oberparleiter
b301ea8c81 [S390] cio: allow offline processing for disconnected devices
When disconnected ccw devices are removed, the device has to be set
offline, otherwise there will be side effects including a reference
count imbalance. This patch modifies ccw_device_offline to work for
devices in disconnecte/not operational state. ccw_device_offline is
called by cio for devices which are online during device removal.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-09-09 12:39:07 +02:00
Cornelia Huck
c91ebe4961 [S390] cio: handle ssch() return codes correctly.
ssch() has two classes of return codes:
- condition codes (0-3) which need to be translated to Linux
  error codes
- Linux error codes (-EIO on exceptions) which should be passed
  to the caller (instead of erronously being handled like
  condition code 3)

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-09-09 12:39:07 +02:00
Cornelia Huck
a2164b8174 [S390] cio: Correct cleanup on error.
Fix cleanup on error in chp_new() and init_channel_subsystem()
(must not call kfree() on structures that had been registered).

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-09-09 12:39:07 +02:00
Jarod Wilson
3d6e48f433 [S390] CVE-2008-1514: prevent ptrace padding area read/write in 31-bit mode
When running a 31-bit ptrace, on either an s390 or s390x kernel,
reads and writes into a padding area in struct user_regs_struct32
will result in a kernel panic.

This is also known as CVE-2008-1514.

Test case available here:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/~checkout~/tests/ptrace-tests/tests/user-area-padding.c?cvsroot=systemtap

Steps to reproduce:
1) wget the above
2) gcc -o user-area-padding-31bit user-area-padding.c -Wall -ggdb2 -D_GNU_SOURCE -m31
3) ./user-area-padding-31bit
<panic>

Test status
-----------
Without patch, both s390 and s390x kernels panic. With patch, the test case,
as well as the gdb testsuite, pass without incident, padding area reads
returning zero, writes ignored.

Nb: original version returned -EINVAL on write attempts, which broke the
gdb test and made the test case slightly unhappy, Jan Kratochvil suggested
the change to return 0 on write attempts.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Tested-by: Jan Kratochvil <jan.kratochvil@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-09-09 12:39:06 +02:00
David S. Miller
fd9ec7d31f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6 2008-09-09 02:11:11 -07:00
Matthew Ranostay
e348797018 ALSA: hda: SPDIF mux name change
Changed the mux naming scheme from "IEC9258 Mux" to "IEC958 Playback Source" to match
the coding style.

Signed-by-off: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:12:01 +02:00
Matthew Ranostay
0ffa980759 ALSA: hda: digital slave support for IDT codecs
Added slave_dig_outs entries for several IDT codecs that have multiple
SPDIF outs, and enabled these SPDIF outs in several pin configs.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:12:00 +02:00
Mark Brown
6010b2da1f ALSA: ASoC: Use codec digital mute when stopping playback
Muting the DAC masks artefacts introduced as the digital stream shuts
down, for example when the input stops being clocked.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:59 +02:00
Mark Brown
3e860846d7 ALSA: ASoC: Sort Kconfig and Makefile entries for codecs
Hopefully this will make merges a little bit easier.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:58 +02:00
Mark Brown
d540de4c2d ALSA: ASoC: Fix indentation in WM9713
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:57 +02:00
Matthew Ranostay
de51ca1267 ALSA: hda: slave digital out support
Added support for playing a stream on multiple digital outs. This is done
by defining codec->slave_dig_outs as array of hda_nid_t with a null-terminated entry to set the
slave SPDIF outs, in which the slave outs have cloned settings of the master out (e.g. dig_out_nid).

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:55 +02:00
Krzysztof Helt
de30d36be1 ALSA: fix section mismatch in the sound_core
The __exit cleanup_oss_soundcore() is called from
the __init init_soundcore(). This causes section mismatch
and breaks kernel's linking on sparc64.

Remove the __exit attribute from the cleanup_oss_soundcore().

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:53 +02:00
Takashi Iwai
d8009882e9 ALSA: use correct lock in snd_ctl_dev_disconnect()
The lock used in snd_ctl_dev_disconnect() should be card->ctl_files_rwlock
for protection of card->ctl_files entries, instead of card->controls_rwsem.

Reported-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:48 +02:00
Alexander Beregalov
3d8cb466a8 ALSA: ice1712.c: fix coding style
before:
total: 113 errors, 169 warnings, 2786 lines checked
total: 26 errors, 24 warnings, 504 lines checked

after:
total: 14 errors, 163 warnings, 2799 lines checked
total: 0 errors, 24 warnings, 504 lines checked

Compile tested only.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:46 +02:00
Alexander Beregalov
1de9fdc24b ALSA: ice1724.c: fix coding style
before:
total: 96 errors, 66 warnings, 2612 lines checked

after:
total: 11 errors, 64 warnings, 2624 lines checked

Compile tested only.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:45 +02:00
Vedran Miletic
cc67b7f737 ALSA: ice1712/ice1724: Coding style fixes part 1 (more coming up)
Inspired by Alexander Beregalov's patches for wtm and aureon.c,
I decided to run checkpatch on some more files. After some work
checkpatch.pl-0.23 --no-tree --file --strict <file> reports
0 errors, 0 warnings, 0 checks, n lines checked for:
phase.c
phase.h
juli.c (1 check about unused code, maybe we should comment it)
juli.h (no changes necessary)
In other files I have just fixed // comments and long lines along the
way (but not all of them), more coming up.

Signed-off-by: Vedran Miletic <rivanvx@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:44 +02:00
Matthew Ranostay
07f455f779 ALSA: hda: removed unneeded hp_nid references
Removed unneeded hp_nid references for 92hd73xx codec family.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:42 +02:00
Matthew Ranostay
d9737751eb ALSA: hda: SPDIF mux controls
Dynamically create mux controls for SPDIF outs on certain IDT/Sigmatel codecs.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:41 +02:00
Alexander Beregalov
f14d8e9750 ALSA: ice1712/wtm: fix coding style
before:
total: 2 errors, 0 warnings, 20 lines checked
total: 49 errors, 2 warnings, 518 lines checked

after:
total: 0 errors, 0 warnings, 20 lines checked
total: 0 errors, 0 warnings, 518 lines checked

Compile tested, size and code are equal.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:39 +02:00
Alexander Beregalov
1ce211a9db ALSA: ice1712/aureon.c: fix coding style
before:
total: 304 errors, 137 warnings, 2259 lines checked

after:
total: 0 errors, 121 warnings, 2284 lines checked

Compile tested, size is different because of include was changed,
but without that change md5sum is different because of cmp cx,dx/cmp
dx,cx swap and __LINE__ was changed in printk function.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:37 +02:00
Cliff Cai
59fcbb6312 sound: ASoC: Blackfin: Include Blackfin architecture support in build
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:28 +02:00
Cliff Cai
579e8eac46 sound: ASoC: Blackfin: add Blackfin arch ASoC Kconfig and Makefile
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:25 +02:00
Cliff Cai
a7e7f54f98 sound: ASoC: Blackfin: board driver for SSM2602 sound chip
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:23 +02:00
Cliff Cai
c4cf8c79c1 sound: ASoC: Blackfin: board driver for AD1980/1 audio codec
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:23 +02:00
Cliff Cai
912c2ac94e sound: ASoC: Blackfin: I2S CPU DAI driver
[Additional coding standards fixes by Mark Brown.]

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:21 +02:00
Cliff Cai
88740da15c sound: ASoC: Blackfin: DMA Driver for I2S sound chip
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:20 +02:00
Cliff Cai
f2028623f2 sound: ASoC: Blackfin: AC97 Blackfin CPU DAI driver
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:19 +02:00
Cliff Cai
aff0510c00 sound: ASoC: Blackfin: DMA Driver for AC97 sound chip
[Additional coding standards fixes by Mark Brown.]

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:18 +02:00
Cliff Cai
8c9c198347 sound: ASoC: Blackfin: SPORT peripheral interface driver
SPORT is a serial port which can support serveral serial communication
protocols.  It can be used as I2C/PCM/AC97. For further information,
please look up the HRM.

[Additional coding standards fixes by Mark Brown.]

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:17 +02:00
Cliff Cai
b7138212a8 sound: ASoC codec: SSM2602 audio codec driver
[Some checkpatch fixups done by Mark Brown.]

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:15 +02:00
Jean Delvare
41759c2eab sound: ASoC: Convert wm8510 to a new-style i2c driver
Convert the wm8510 codec driver to the new (standard) device
driver binding model.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Geoffrey Wossum <gwossum@acm.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:13 +02:00
Jean Delvare
b6471305bb sound: ASoC: Convert neo1973/lm4857 to a new-style i2c driver
Convert the lm4857 driver in neo1973_wm8753 to the new (standard)
i2c device driver binding model. I assumed that the LM4857 was always
on the same I2C bus as the WM8753 codec.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Tim Niemeyer <reddog@mastersword.de>
Cc: Graeme Gregory <graeme@openmoko.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:11 +02:00
Jean Delvare
ad4503d8a0 sound: ASoC: Convert wm8753 to a new-style i2c driver
Convert the wm8753 codec driver to the new (standard) i2c device
driver binding model.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Ville Syrjala <syrjala@sci.fi>
Cc: Frank Mandarino <fmandarino@endrelia.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:10 +02:00
Jean Delvare
d280289e79 sound: ASoC: Fix an error path in neo1973_wm8753
The error handling in neo1973_init is incorrect:

* If platform_device_add fails, we go on with the rest of the
  initialization instead of bailing out. Things will break when the
  module is removed (platform_device_unregister called on a device
  that wasn't registered.)

* If i2c_add_driver fails, we return an error so the module will not
  load, but we don't unregister neo1973_snd_device, so we are leaking
  resources.

Add the missing error handling.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Tim Niemeyer <reddog@mastersword.de>
Cc: Graeme Gregory <graeme@openmoko.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:07 +02:00
Robert P. J. Day
dfdf34bbcb sound: remove reference to dead sound OSS vars AEDSP16_MSS and SBPRO
Remove the Kconfig definitions of unused variables AEDSP16_MSS and
AEDSP16_SBPRO since they're:

1) unused, and
2) referenced incorrectly anyway.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:11:01 +02:00
Randy Dunlap
dc0abf9005 ALSA: us122l - Add missing dependency on CONFIG_SND_HWDEP
CONFIG_SND_USB_US122L uses snd_hwdep_new(), so SND_HWDEP needs
to be enabled (selected).

ERROR: "snd_hwdep_new" [sound/usb/usx2y/snd-usb-us122l.ko] undefined!

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:10:57 +02:00
Cliff Cai
b1cd9b24e8 ALSA: ASoC codec: fix compiling error in ad1980 driver after ASoC API changed
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:10:54 +02:00
Takashi Iwai
ea88663cdc ALSA: remove stale files
Empty files remained likely due to wrong patching.
Remove them now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:10:52 +02:00
Takashi Iwai
2f5983f2aa ALSA: hda - allow probing of 4 codecs
Allow probing of 4 codecs on known good situations.
On some known bad situations, it should be avoided.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-09 09:10:49 +02:00
Alexey Dobriyan
9c0bbee8a6 seccomp: drop now bogus dependency on PROC_FS
seccomp is prctl(2)-driven now.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-09 09:09:51 +02:00
Marcel Holtmann
e7c29cb16c [Bluetooth] Reject L2CAP connections on an insecure ACL link
The Security Mode 4 of the Bluetooth 2.1 specification has strict
authentication and encryption requirements. It is the initiators job
to create a secure ACL link. However in case of malicious devices, the
acceptor has to make sure that the ACL is encrypted before allowing
any kind of L2CAP connection. The only exception here is the PSM 1 for
the service discovery protocol, because that is allowed to run on an
insecure ACL link.

Previously it was enough to reject a L2CAP connection during the
connection setup phase, but with Bluetooth 2.1 it is forbidden to
do any L2CAP protocol exchange on an insecure link (except SDP).

The new hci_conn_check_link_mode() function can be used to check the
integrity of an ACL link. This functions also takes care of the cases
where Security Mode 4 is disabled or one of the devices is based on
an older specification.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2008-09-09 07:19:20 +02:00
Marcel Holtmann
09ab6f4c23 [Bluetooth] Enforce correct authentication requirements
With the introduction of Security Mode 4 and Simple Pairing from the
Bluetooth 2.1 specification it became mandatory that the initiator
requires authentication and encryption before any L2CAP channel can
be established. The only exception here is PSM 1 for the service
discovery protocol (SDP). It is meant to be used without any encryption
since it contains only public information. This is how Bluetooth 2.0
and before handle connections on PSM 1.

For Bluetooth 2.1 devices the pairing procedure differentiates between
no bonding, general bonding and dedicated bonding. The L2CAP layer
wrongly uses always general bonding when creating new connections, but it
should not do this for SDP connections. In this case the authentication
requirement should be no bonding and the just-works model should be used,
but in case of non-SDP connection it is required to use general bonding.

If the new connection requires man-in-the-middle (MITM) protection, it
also first wrongly creates an unauthenticated link key and then later on
requests an upgrade to an authenticated link key to provide full MITM
protection. With Simple Pairing the link key generation is an expensive
operation (compared to Bluetooth 2.0 and before) and doing this twice
during a connection setup causes a noticeable delay when establishing
a new connection. This should be avoided to not regress from the expected
Bluetooth 2.0 connection times. The authentication requirements are known
up-front and so enforce them.

To fulfill these requirements the hci_connect() function has been extended
with an authentication requirement parameter that will be stored inside
the connection information and can be retrieved by userspace at any
time. This allows the correct IO capabilities exchange and results in
the expected behavior.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2008-09-09 07:19:20 +02:00
Marcel Holtmann
f1c08ca559 [Bluetooth] Fix reference counting during ACL config stage
The ACL config stage keeps holding a reference count on incoming
connections when requesting the extended features. This results in
keeping an ACL link up without any users. The problem here is that
the Bluetooth specification doesn't define an ownership of the ACL
link and thus it can happen that the implementation on the initiator
side doesn't care about disconnecting unused links. In this case the
acceptor needs to take care of this.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2008-09-09 07:19:19 +02:00
David S. Miller
2eb2f77900 sparc64: Disable timer interrupts in fixup_irqs().
When a CPU is offlined, we leave the timer interrupts disabled
because fixup_irqs() does not explicitly take care of that case.

Fix this by invoking tick_ops->disable_irq().

Based upon analysis done by Paul E. McKenney.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-08 17:21:07 -07:00