Commit Graph

77 Commits

Author SHA1 Message Date
John W. Linville
c1f3bb6bd3 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2013-11-08 09:03:10 -05:00
John W. Linville
87bc0728d4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
2013-11-04 14:51:28 -05:00
Gustavo Padovan
0e790c64f3 Bluetooth: Add L2CAP channel to skb private data
Adding the channel to the skb private data makes possible to us know which
channel the skb we have came from.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2013-10-21 13:50:55 -07:00
Marcel Holtmann
2edf870d19 Bluetooth: Provide msg_name callback for L2CAP connectionless channels
The L2CAP connectionless channels use SOCK_DGRAM and recvmsg() and need
to receive the remote BD_ADDR and PSM information via msg_name from
the recvmsg() system call.

So in case the L2CAP socket is for connectionless channels, provide
a msg_name callback that can update the data. Also store the remote
BD_ADDR and PSM in the skb so it can be extracted later on.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-10-13 23:13:37 +03:00
Marcel Holtmann
d97636980f Bluetooth: Add support for per socket msg_name callback
This allows to add a per socket msg_name callback that can be used
for updating the msg_name information for recvmsg() system calls.

This feature is used by another patch to support address information
on L2CAP connectionless channels.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-10-13 23:10:33 +03:00
Marcel Holtmann
5f6cd79f47 Bluetooth: Remove src and dst fields from bt_sock structure
Every socket protocol now stores its own address information. So
just remove the generic src and dst fields since they are no longer
needed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-10-13 21:11:25 +03:00
David S. Miller
7009deab19 Merge git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
Conflicts:
	drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
	drivers/net/wireless/rtlwifi/rtl8188ee/phy.h
	drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
	drivers/net/wireless/rtlwifi/rtl8192de/phy.h
	drivers/net/wireless/rtlwifi/rtl8723ae/phy.h

Just some minor conflicts between the wireless-next changes
and Joe Perches's "extern" removal from function prototypes
in header files.

John W. Linville says:

====================
Regarding the Bluetooth bits, Gustavo says:

"The big work here is from Marcel and Johan. They did a lot of work
in the L2CAP, HCI and MGMT layers. The most important ones are the
addition of a new MGMT command to enable/disable LE advertisement
and the introduction of the HCI user channel to allow applications
to get directly and exclusive access to Bluetooth devices."

As to the ath10k bits, Kalle says:

"Bartosz dropped support for qca98xx hw1.0 hardware from ath10k, it's
just too much to support it. Michal added support for the new firmware
interface. Marek fixed WEP in AP and IBSS mode. Rest of the changes are
minor fixes or cleanups."

And also:

"Major changes are:

* throughput improvements including aligning the RX frames correctly and
  optimising HTT layer (Michal)

* remove qca98xx hw1.0 support (Bartosz)

* add support for firmware version 999.999.0.636 (Michal)

* firmware htt statistics support (Kalle)

* fix WEP in AP and IBSS mode (Marek)

* fix a mutex unlock balance in debugfs file (Shafi)

And of course there's a lot of smaller fixes and cleanup."

For the wl12xx bits, Luca says:

"Here are some patches intended for 3.13.  Eliad is upstreaming a bunch
of patches that have been pending in the internal tree.  Mostly bugfixes
and other small improvements."

Along with that...

Arend and friends bring us a batch of brcmfmac updates, Larry Finger
offers some rtlwifi refactoring, and Sujith sends the usual batch of
ath9k updates.  As usual, there are a number of other small updates
from a variety of players as well.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-07 15:40:44 -04:00
Marcel Holtmann
a59ac2f744 Bluetooth: Replace BDADDR_LOCAL with BDADDR_NONE
The BDADDR_LOCAL is a relict from userspace and has never been used
within the kernel. So remove that constant and replace it with a new
BDADDR_NONE that is similar to HCI_DEV_NONE with all bits set.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-10-02 09:09:57 +03:00
Joe Perches
e74e58f8d2 bluetooth: Remove extern from function prototypes
There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-23 16:29:41 -04:00
Johan Hedberg
e793dcf082 Bluetooth: Fix waiting for clearing of BT_SK_SUSPEND flag
In the case of blocking sockets we should not proceed with sendmsg() if
the socket has the BT_SK_SUSPEND flag set. So far the code was only
ensuring that POLLOUT doesn't get set for non-blocking sockets using
poll() but there was no code in place to ensure that blocking sockets do
the right thing when writing to them.

This patch adds a new bt_sock_wait_ready helper function to sleep in the
sendmsg call if the BT_SK_SUSPEND flag is set, and wake up as soon as it
is unset. It also updates the L2CAP and RFCOMM sendmsg callbacks to take
advantage of this new helper function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-18 17:02:59 -05:00
Frédéric Dalleau
ad10b1a487 Bluetooth: Add Bluetooth socket voice option
This patch extends the current Bluetooth socket options with BT_VOICE.
This is intended to choose voice data type at runtime. It only applies
to SCO sockets. Incoming connections shall be setup during deferred
setup. Outgoing connections shall be setup before connect(). The desired
setting is stored in the SCO socket info. This patch declares needed
members, modifies getsockopt() and setsockopt().

Signed-off-by: Frédéric Dalleau <frederic.dalleau@linux.intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-08-21 16:47:09 +02:00
Linus Torvalds
20b4fb4852 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS updates from Al Viro,

Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).

7kloc removed.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
  don't bother with deferred freeing of fdtables
  proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
  proc: Make the PROC_I() and PDE() macros internal to procfs
  proc: Supply a function to remove a proc entry by PDE
  take cgroup_open() and cpuset_open() to fs/proc/base.c
  ppc: Clean up scanlog
  ppc: Clean up rtas_flash driver somewhat
  hostap: proc: Use remove_proc_subtree()
  drm: proc: Use remove_proc_subtree()
  drm: proc: Use minor->index to label things, not PDE->name
  drm: Constify drm_proc_list[]
  zoran: Don't print proc_dir_entry data in debug
  reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
  proc: Supply an accessor for getting the data from a PDE's parent
  airo: Use remove_proc_subtree()
  rtl8192u: Don't need to save device proc dir PDE
  rtl8187se: Use a dir under /proc/net/r8180/
  proc: Add proc_mkdir_data()
  proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
  proc: Move PDE_NET() to fs/proc/proc_net.c
  ...
2013-05-01 17:51:54 -07:00
David Herrmann
f53c20e936 Bluetooth: allow constant arguments for bacmp()/bacpy()
There is no reason to require the source arguments to be writeable so fix
this to allow constant source addresses.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-04-17 02:56:37 -03:00
Al Viro
c10c062cad bluetooth: kill unused fops field in struct bt_sock_list
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09 14:13:37 -04:00
Al Viro
b03166152f bluetooth: kill unused 'module' argument of bt_procfs_init()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09 14:13:36 -04:00
Johan Hedberg
02350a725f Bluetooth: Add support for custom event terminated commands
This patch adds support for having commands within HCI requests that do
not result in a command complete but some other event. This is at least
needed for some vendor specific commands to be issued in the
hdev->setup() procecure, but might also be useful for other commands.

The way that the support is implemented is by extending the skb control
buffer to have a field to indicate that the command is expected to
terminate with a special event. After sending the command each received
event can then be compared against this field through hdev->sent_cmd.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2013-04-04 19:16:08 +03:00
Johan Hedberg
3119ae9599 Bluetooth: Add initial skeleton for asynchronous HCI requests
This patch adds the initial definitions and functions for asynchronous
HCI requests. Asynchronous requests are essentially a group of HCI
commands together with an optional completion callback. The request is
tracked through the already existing command queue by having the
necessary context information as part of the control buffer of each skb.

The only information needed in the skb control buffer is a flag for
indicating that the skb is the start of a request as well as the
optional complete callback that should be used when the request is
complete (this will be found in the last skb of the request).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-03-08 10:40:26 -03:00
David Herrmann
be9f97f045 Bluetooth: change bt_sock_unregister() to return void
There is no reason a caller ever wants to check the return type of this
call. _Iff_ a user successfully called bt_sock_register(), they're allowed
to call bt_sock_unregister().
All other calls in the kernel (device_del, device_unregister, kfree(), ..)
that are logically equivalent return void. Lets not make callers think
they have to check the return type of this call and instead simply return
void.

We guarantee that after bt_sock_unregister() is called, the socket type
_is_ unregistered. If that is not what the caller wants, they're using the
wrong function, anyway.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-03-08 10:38:44 -03:00
Johan Hedberg
679efe2b4f Bluetooth: Add helper functions for testing bdaddr types
This patch adds two helper functions to test for valid bdaddr type
values. These will be particularely useful in the mgmt code to check
that user space has passed valid values to the kernel.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-01-23 01:58:08 -02:00
Andrei Emeltchenko
d945df256a bluetooth: Remove unneeded batostr function
batostr is not needed anymore since for printing Bluetooth
addresses we use %pMR specifier.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-09-27 18:10:43 -03:00
Masatake YAMATO
256a06c8a8 Bluetooth: /proc/net/ entries for bluetooth protocols
lsof command can tell the type of socket processes are using.
Internal lsof uses inode numbers on socket fs to resolve the type of
sockets. Files under /proc/net/, such as tcp, udp, unix, etc provides
such inode information.

Unfortunately bluetooth related protocols don't provide such inode
information. This patch series introduces /proc/net files for the protocols.

This patch against af_bluetooth.c provides facility to the implementation
of protocols. This patch extends bt_sock_list and introduces two exported
function bt_procfs_init, bt_procfs_cleanup.

The type bt_sock_list is already used in some of implementation of
protocols. bt_procfs_init prepare seq_operations which converts
protocol own bt_sock_list data to protocol own proc entry when the
entry is accessed.

What I, lsof user, need is just inode number of bluetooth
socket. However, people may want more information. The bt_procfs_init
takes a function pointer for customizing the show handler of
seq_operations.

In v4 patch, __acquires and __releases attributes are added to suppress
sparse warning. Suggested by Andrei Emeltchenko.

In v5 patch, linux/proc_fs.h is included to use PDE. Build error is
reported by Fengguang Wu.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-08-06 15:02:58 -03:00
Gustavo Padovan
8c520a5992 Bluetooth: Remove unnecessary headers include
Most of the include were unnecessary or already included by some other
header.
Replace module.h by export.h where possible.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:08 +03:00
Gustavo Padovan
c3c7ea6594 Bluetooth: Fix coding style in include/net/bluetooth
Fix all warning and errors reported by checkpatch but license trailing
whitespace and bdaddr_t definition.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:08 +03:00
Gustavo Padovan
38351c66e4 Bluetooth: Fix trailing whitespaces in license text
As reported by checkpatch.pl

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:06 +03:00
Gustavo Padovan
c5daa683f2 Bluetooth: Create flags for bt_sk()
defer_setup and suspended are now flags into bt_sk().

Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-05-16 16:14:17 -03:00
Mat Martineau
a6a5568c03 Bluetooth: Lock the L2CAP channel when sending
The ERTM and streaming mode transmit queue must only be accessed while
the L2CAP channel lock is held.  Locking the channel before calling
l2cap_chan_send ensures that multiple threads cannot simultaneously
manipulate the queue when sending and receiving concurrently.

L2CAP channel locking had previously moved to the l2cap_chan struct
instead of the associated socket, so some of the old socket locking
can also be removed in this patch.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
2012-05-16 16:14:02 -03:00
Gustavo Padovan
08e6d907fe Merge git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth 2012-05-16 16:11:44 -03:00
Gustavo Padovan
a7d7723ae7 Bluetooth: notify userspace of security level change
It fixes L2CAP socket based security level elevation during a
connection. The HID profile needs this (for keyboards) and it is the only
way to achieve the security level elevation when using the management
interface to talk to the kernel (hence the management enabling patch
being the one that exposes this issue).

It enables the userspace a security level change when the socket is
already connected and create a way to notify the socket the result of the
request. At the moment of the request the socket is made non writable, if
the request fails the connections closes, otherwise the socket is made
writable again, POLL_OUT is emmited.

Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-14 13:51:25 -04:00
Mat Martineau
3ce3514f5d Bluetooth: Remove duplicate structure members from bt_skb_cb
These values are now in the nested l2cap_ctrl struct.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
2012-05-09 01:40:47 -03:00
Andre Guedes
591f47f31b Bluetooth: Move address type macros to bluetooth.h
This patch moves address type macros to bluetooth.h since they will be
used by management interface and Bluetooth socket interface. It also
replaces the macro prefix MGMT_ADDR_ by BDADDR_.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-05-09 01:40:42 -03:00
Syam Sidhardhan
e47872209d Bluetooth: Remove strtoba header declared but not defined
No one is using strtoba() in the bluetooth subsystem.

Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
2012-05-09 01:40:34 -03:00
Mat Martineau
00e3112c5a Bluetooth: Add a structure to carry ERTM data in skb control blocks
Every field from ERTM control headers is now carried in the control
block so it only has to be parsed or generated once, and can be
efficiently accessed throughout the ERTM code.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
2012-05-09 00:41:35 -03:00
Marcel Holtmann
a6fb08dfe8 Bluetooth: Remove unneeded bt_cb(skb)->channel variable
The bt_cb(skb)->channel was only needed to make hci_send_to_sock() be
used for HCI raw and control sockets. Since they have now separate sending
functions this is no longer needed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20 15:55:37 +02:00
Andrei Emeltchenko
20d1803a70 Bluetooth: Move scope of state_to_string
Function state_to_string will be used in other files in debug
statements.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-17 13:01:10 +02:00
Joe Perches
3ed7003e72 Bluetooth: Add logging functions bt_info and bt_err
Use specific logging functions instead of a generic
bt_printk function can save some text.

Remove now unused bt_printk function.
Add compatibility BT_INFO and BT_ERR macros.

(compiled x86 and defconfig with bluetooth and all bluetooth drivers)

$ size net/bluetooth/built-in.o*
   text	   data	    bss	    dec	    hex	filename
 381662	  20072	 100416	 502150	  7a986	net/bluetooth/built-in.o.allyesconfig.new
 382463	  20072	 100400	 502935	  7ac97	net/bluetooth/built-in.o.allyesconfig.old
 126635	   1388	    132	 128155	  1f49b	net/bluetooth/built-in.o.defconfig.new
 127175	   1388	    132	 128695	  1f6b7	net/bluetooth/built-in.o.defconfig.old

$ size drivers/bluetooth/built-in.o*
 127575	   8976	  29476	 166027	  2888b	drivers/bluetooth/built-in.o.allyesconfig.new
 129512	   8976	  29516	 168004	  29044	drivers/bluetooth/built-in.o.allyesconfig.old
  52998	   3292	    156	  56446	   dc7e	drivers/bluetooth/built-in.o.defconfig.new
  54358	   3292	    156	  57806	   e1ce	drivers/bluetooth/built-in.o.defconfig.old

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-17 11:33:17 +02:00
Octavian Purdila
d22015aad4 Bluetooth: silence lockdep warning
Since bluetooth uses multiple protocols types, to avoid lockdep
warnings, we need to use different lockdep classes (one for each
protocol type).

This is already done in bt_sock_create but it misses a couple of cases
when new connections are created. This patch corrects that to fix the
following warning:

<4>[ 1864.732366] =======================================================
<4>[ 1864.733030] [ INFO: possible circular locking dependency detected ]
<4>[ 1864.733544] 3.0.16-mid3-00007-gc9a0f62 #3
<4>[ 1864.733883] -------------------------------------------------------
<4>[ 1864.734408] t.android.btclc/4204 is trying to acquire lock:
<4>[ 1864.734869]  (rfcomm_mutex){+.+.+.}, at: [<c14970ea>] rfcomm_dlc_close+0x15/0x30
<4>[ 1864.735541]
<4>[ 1864.735549] but task is already holding lock:
<4>[ 1864.736045]  (sk_lock-AF_BLUETOOTH){+.+.+.}, at: [<c1498bf7>] lock_sock+0xa/0xc
<4>[ 1864.736732]
<4>[ 1864.736740] which lock already depends on the new lock.
<4>[ 1864.736750]
<4>[ 1864.737428]
<4>[ 1864.737437] the existing dependency chain (in reverse order) is:
<4>[ 1864.738016]
<4>[ 1864.738023] -> #1 (sk_lock-AF_BLUETOOTH){+.+.+.}:
<4>[ 1864.738549]        [<c1062273>] lock_acquire+0x104/0x140
<4>[ 1864.738977]        [<c13d35c1>] lock_sock_nested+0x58/0x68
<4>[ 1864.739411]        [<c1493c33>] l2cap_sock_sendmsg+0x3e/0x76
<4>[ 1864.739858]        [<c13d06c3>] __sock_sendmsg+0x50/0x59
<4>[ 1864.740279]        [<c13d0ea2>] sock_sendmsg+0x94/0xa8
<4>[ 1864.740687]        [<c13d0ede>] kernel_sendmsg+0x28/0x37
<4>[ 1864.741106]        [<c14969ca>] rfcomm_send_frame+0x30/0x38
<4>[ 1864.741542]        [<c1496a2a>] rfcomm_send_ua+0x58/0x5a
<4>[ 1864.741959]        [<c1498447>] rfcomm_run+0x441/0xb52
<4>[ 1864.742365]        [<c104f095>] kthread+0x63/0x68
<4>[ 1864.742742]        [<c14d5182>] kernel_thread_helper+0x6/0xd
<4>[ 1864.743187]
<4>[ 1864.743193] -> #0 (rfcomm_mutex){+.+.+.}:
<4>[ 1864.743667]        [<c1061ada>] __lock_acquire+0x988/0xc00
<4>[ 1864.744100]        [<c1062273>] lock_acquire+0x104/0x140
<4>[ 1864.744519]        [<c14d2c70>] __mutex_lock_common+0x3b/0x33f
<4>[ 1864.744975]        [<c14d303e>] mutex_lock_nested+0x2d/0x36
<4>[ 1864.745412]        [<c14970ea>] rfcomm_dlc_close+0x15/0x30
<4>[ 1864.745842]        [<c14990d9>] __rfcomm_sock_close+0x5f/0x6b
<4>[ 1864.746288]        [<c1499114>] rfcomm_sock_shutdown+0x2f/0x62
<4>[ 1864.746737]        [<c13d275d>] sys_socketcall+0x1db/0x422
<4>[ 1864.747165]        [<c14d42f0>] syscall_call+0x7/0xb

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-13 17:01:29 +02:00
Ulisses Furquim
f1e91e1640 Bluetooth: Always compile SCO and L2CAP in Bluetooth Core
The handling of SCO audio links and the L2CAP protocol are essential to
any system with Bluetooth thus are always compiled in from now on.

Signed-off-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-12-21 02:21:08 -02:00
John W. Linville
5f779bbd47 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-next 2011-12-06 16:02:05 -05:00
Andrei Emeltchenko
d095c1ebd4 Bluetooth: Remove magic bluetooth version numbers
Use bluetooth names instead of BT SIG assigned numbers

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-12-03 08:27:58 +09:00
John W. Linville
515db09338 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Conflicts:
	drivers/net/wireless/iwlegacy/iwl-debugfs.c
	drivers/net/wireless/iwlegacy/iwl-rx.c
	drivers/net/wireless/iwlegacy/iwl-scan.c
	drivers/net/wireless/iwlegacy/iwl-tx.c
	include/net/bluetooth/bluetooth.h
2011-11-22 14:05:46 -05:00
Mat Martineau
c14968b0c1 Bluetooth: Add BT_CHANNEL_POLICY socket option
Allow control of AMP functionality on L2CAP sockets. By default,
connections will be restricted to BR/EDR.  Manipulating the
BT_CHANNEL_POLICY option allows for channels to be moved to or created
on AMP controllers.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-11-07 17:24:59 -02:00
Joe Perches
b9075fa968 treewide: use __printf not __attribute__((format(printf,...)))
Standardize the style for compiler based printf format verification.
Standardized the location of __printf too.

Done via script and a little typing.

$ grep -rPl --include=*.[ch] -w "__attribute__" * | \
  grep -vP "^(tools|scripts|include/linux/compiler-gcc.h)" | \
  xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.+)\s*,\s*(.+)\s*\)\s*\)\s*\)/__printf($1, $2)/g ; print; }'

[akpm@linux-foundation.org: revert arch bits]
Signed-off-by: Joe Perches <joe@perches.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-31 17:30:54 -07:00
Andrei Emeltchenko
836be93421 Bluetooth: EWS: support extended seq numbers
Adds support for extended sequence numbers found in
extended control fields.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-10-17 18:04:00 -02:00
Vinicius Costa Gomes
8f36011924 Bluetooth: Add support for returning the encryption key size
This will be useful when userspace wants to restrict some kinds of
operations based on the length of the key size used to encrypt the
link.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-07-08 18:39:31 -03:00
Joe Perches
e1447d8d8d Bluetooth: Add bt_printk
Add a local logging function to emit bluetooth specific
messages.  Using vsprintf extension %pV saves code/text
space.

Convert the current BT_INFO and BT_ERR macros to use bt_printk.
Remove __func__ from BT_ERR macro (and the uses).
Prefix "Bluetooth: " to BT_ERR
Remove __func__ from BT_DBG as function can be prefixed when
using dynamic_debug.

With allyesconfig:

   text    data     bss     dec     hex filename
 129956    8632   36096  174684   2aa5c drivers/bluetooth/built-in.o.new2
 134402    8632   36064  179098   2bb9a drivers/bluetooth/built-in.o.old
  14778    1012    3408   19198    4afe net/bluetooth/bnep/built-in.o.new2
  15067    1012    3408   19487    4c1f net/bluetooth/bnep/built-in.o.old
 346595   19163   86080  451838   6e4fe net/bluetooth/built-in.o.new2
 353751   19163   86064  458978   700e2 net/bluetooth/built-in.o.old
  18483    1172    4264   23919    5d6f net/bluetooth/cmtp/built-in.o.new2
  18927    1172    4264   24363    5f2b net/bluetooth/cmtp/built-in.o.old
  19237    1172    5152   25561    63d9 net/bluetooth/hidp/built-in.o.new2
  19581    1172    5152   25905    6531 net/bluetooth/hidp/built-in.o.old
  59461    3884   14464   77809   12ff1 net/bluetooth/rfcomm/built-in.o.new2
  61206    3884   14464   79554   136c2 net/bluetooth/rfcomm/built-in.o.old

with x86 defconfig (and just bluetooth):

$ size net/bluetooth/built-in.o.defconfig.*
   text    data     bss     dec     hex filename
  66358     933     100   67391   1073f net/bluetooth/built-in.o.defconfig.new
  66643     933     100   67676   1085c net/bluetooth/built-in.o.defconfig.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-06-30 19:17:12 -03:00
Joe Perches
e175072f37 Bluetooth: Rename function bt_err to bt_to_errno
Make it easier to use more normal logging styles later.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-06-30 18:44:08 -03:00
Waldemar Rymarkiewicz
5a9d0a3ffb Bluetooth: Clean up some code style issues
Fix lines longer than 80 chars in length.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-06-09 16:33:28 -03:00
Jaikumar Ganesh
14b12d0b98 Bluetooth: Add BT_POWER L2CAP socket option.
Add BT_POWER socket option used to control the power
characteristics of the underlying ACL link. When the remote end
has put the link in sniff mode and the host stack wants to send
data we need need to explicitly exit sniff mode to work well with
certain devices (For example, A2DP on Plantronics Voyager 855).
However, this causes problems with HID devices.

Hence, moving into active mode when sending data, irrespective
of who set the sniff mode has been made as a socket option. By
default, we will move into active mode. HID devices can set the
L2CAP socket option to prevent this from happening.

Currently, this has been implemented for L2CAP sockets. This has been
tested with incoming and outgoing L2CAP sockets for HID and A2DP.

Based on discussions on linux-bluetooth and patches submitted by
Andrei Emeltchenko.

Signed-off-by: Jaikumar Ganesh <jaikumar@google.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-06-08 16:58:19 -03:00
Gustavo F. Padovan
642745184f Bluetooth: Merge L2CAP and SCO modules into bluetooth.ko
Actually doesn't make sense have these modules built separately.
The L2CAP layer is needed by almost all Bluetooth protocols and profiles.
There isn't any real use case without having L2CAP loaded.
SCO is only essential for Audio transfers, but it is so small that we can
have it loaded always in bluetooth.ko without problems.
If you really doesn't want it you can disable SCO in the kernel config.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-02-14 17:27:36 -03:00
Andrei Emeltchenko
e702112ff6 Bluetooth: Use non-flushable by default L2CAP data packets
Modification of Nick Pelly <npelly@google.com> patch.

With Bluetooth 2.1 ACL packets can be flushable or non-flushable. This commit
makes ACL data packets non-flushable by default on compatible chipsets, and
adds the BT_FLUSHABLE socket option to explicitly request flushable ACL
data packets for a given L2CAP socket. This is useful for A2DP data which can
be safely discarded if it can not be delivered within a short time (while
other ACL data should not be discarded).

Note that making ACL data flushable has no effect unless the automatic flush
timeout for that ACL link is changed from its default of 0 (infinite).

Default packet types (for compatible chipsets):
Frame 34: 13 bytes on wire (104 bits), 13 bytes captured (104 bits)
Bluetooth HCI H4
Bluetooth HCI ACL Packet
    .... 0000 0000 0010 = Connection Handle: 0x0002
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 8
Bluetooth L2CAP Packet

After setting BT_FLUSHABLE
(sock.setsockopt(274 /*SOL_BLUETOOTH*/, 8 /* BT_FLUSHABLE */, 1 /* flush */))
Frame 34: 13 bytes on wire (104 bits), 13 bytes captured (104 bits)
Bluetooth HCI H4
Bluetooth HCI ACL Packet
    .... 0000 0000 0010 = Connection Handle: 0x0002
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 8
Bluetooth L2CAP Packet

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-02-08 01:40:04 -02:00