Commit Graph

547 Commits

Author SHA1 Message Date
Gustavo Padovan 66f3b913e6 Bluetooth: Fix userspace compatibility issue with mgmt interface
To ensure that old user space versions do not accidentally pick up and
try to use the management channel, use a different channel number.

Reported-by: Keith Packard <keithp@keithp.com>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
2012-04-05 15:05:51 -03:00
Andrei Emeltchenko c732a2af12 Bluetooth: mgmt: Fix timeout type
Silence sparse warnings:
net/bluetooth/mgmt.c:865:19: warning: cast to restricted __le16

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
2012-03-28 15:13:18 -03:00
Johan Hedberg 6c0c331e4c Bluetooth: Check for minimum data length in eir_has_data_type()
If passed 0 as data_length the (parsed < data_length - 1) test will be
true and cause a buffer overflow. In practice we need at least two bytes
for the element length and type so add a test for it to the very
beginning of the function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
2012-03-28 12:02:40 -03:00
Johan Hedberg 84d9d0716b Bluetooth: Don't increment twice in eir_has_data_type()
The parsed variable is already incremented inside the for-loop so there
no need to increment it again (not to mention that the code was
incrementing it the wrong amount).

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
2012-03-28 12:02:40 -03:00
Johan Hovold 9432496206 Bluetooth: hci_core: fix NULL-pointer dereference at unregister
Make sure hci_dev_open returns immediately if hci_dev_unregister has
been called.

This fixes a race between hci_dev_open and hci_dev_unregister which can
lead to a NULL-pointer dereference.

Bug is 100% reproducible using hciattach and a disconnected serial port:

0. # hciattach -n /dev/ttyO1 any noflow

1. hci_dev_open called from hci_power_on grabs req lock
2. hci_init_req executes but device fails to initialise (times out
   eventually)
3. hci_dev_open is called from hci_sock_ioctl and sleeps on req lock
4. hci_uart_tty_close calls hci_dev_unregister and sleeps on req lock in
   hci_dev_do_close
5. hci_dev_open (1) releases req lock
6. hci_dev_do_close grabs req lock and returns as device is not up
7. hci_dev_unregister sleeps in destroy_workqueue
8. hci_dev_open (3) grabs req lock, calls hci_init_req and eventually sleeps
9. hci_dev_unregister finishes, while hci_dev_open is still running...

[   79.627136] INFO: trying to register non-static key.
[   79.632354] the code is fine but needs lockdep annotation.
[   79.638122] turning off the locking correctness validator.
[   79.643920] [<c00188bc>] (unwind_backtrace+0x0/0xf8) from [<c00729c4>] (__lock_acquire+0x1590/0x1ab0)
[   79.653594] [<c00729c4>] (__lock_acquire+0x1590/0x1ab0) from [<c00733f8>] (lock_acquire+0x9c/0x128)
[   79.663085] [<c00733f8>] (lock_acquire+0x9c/0x128) from [<c0040a88>] (run_timer_softirq+0x150/0x3ac)
[   79.672668] [<c0040a88>] (run_timer_softirq+0x150/0x3ac) from [<c003a3b8>] (__do_softirq+0xd4/0x22c)
[   79.682281] [<c003a3b8>] (__do_softirq+0xd4/0x22c) from [<c003a924>] (irq_exit+0x8c/0x94)
[   79.690856] [<c003a924>] (irq_exit+0x8c/0x94) from [<c0013a50>] (handle_IRQ+0x34/0x84)
[   79.699157] [<c0013a50>] (handle_IRQ+0x34/0x84) from [<c0008530>] (omap3_intc_handle_irq+0x48/0x4c)
[   79.708648] [<c0008530>] (omap3_intc_handle_irq+0x48/0x4c) from [<c037499c>] (__irq_usr+0x3c/0x60)
[   79.718048] Exception stack(0xcf281fb0 to 0xcf281ff8)
[   79.723358] 1fa0:                                     0001e6a0 be8dab00 0001e698 00036698
[   79.731933] 1fc0: 0002df98 0002df38 0000001f 00000000 b6f234d0 00000000 00000004 00000000
[   79.740509] 1fe0: 0001e6f8 be8d6aa0 be8dac50 0000aab8 80000010 ffffffff
[   79.747497] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[   79.756011] pgd = cf3b4000
[   79.758850] [00000000] *pgd=8f0c7831, *pte=00000000, *ppte=00000000
[   79.765502] Internal error: Oops: 80000007 [#1]
[   79.770294] Modules linked in:
[   79.773529] CPU: 0    Tainted: G        W     (3.3.0-rc6-00002-gb5d5c87 #421)
[   79.781066] PC is at 0x0
[   79.783721] LR is at run_timer_softirq+0x16c/0x3ac
[   79.788787] pc : [<00000000>]    lr : [<c0040aa4>]    psr: 60000113
[   79.788787] sp : cf281ee0  ip : 00000000  fp : cf280000
[   79.800903] r10: 00000004  r9 : 00000100  r8 : b6f234d0
[   79.806427] r7 : c0519c28  r6 : cf093488  r5 : c0561a00  r4 : 00000000
[   79.813323] r3 : 00000000  r2 : c054eee0  r1 : 00000001  r0 : 00000000
[   79.820190] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   79.827728] Control: 10c5387d  Table: 8f3b4019  DAC: 00000015
[   79.833801] Process gpsd (pid: 1265, stack limit = 0xcf2802e8)
[   79.839965] Stack: (0xcf281ee0 to 0xcf282000)
[   79.844573] 1ee0: 00000002 00000000 c0040a24 00000000 00000002 cf281f08 00200200 00000000
[   79.853210] 1f00: 00000000 cf281f18 cf281f08 00000000 00000000 00000000 cf281f18 cf281f18
[   79.861816] 1f20: 00000000 00000001 c056184c 00000000 00000001 b6f234d0 c0561848 00000004
[   79.870452] 1f40: cf280000 c003a3b8 c051e79c 00000001 00000000 00000100 3fa9e7b8 0000000a
[   79.879089] 1f60: 00000025 cf280000 00000025 00000000 00000000 b6f234d0 00000000 00000004
[   79.887756] 1f80: 00000000 c003a924 c053ad38 c0013a50 fa200000 cf281fb0 ffffffff c0008530
[   79.896362] 1fa0: 0001e6a0 0000aab8 80000010 c037499c 0001e6a0 be8dab00 0001e698 00036698
[   79.904998] 1fc0: 0002df98 0002df38 0000001f 00000000 b6f234d0 00000000 00000004 00000000
[   79.913665] 1fe0: 0001e6f8 be8d6aa0 be8dac50 0000aab8 80000010 ffffffff 00fbf700 04ffff00
[   79.922302] [<c0040aa4>] (run_timer_softirq+0x16c/0x3ac) from [<c003a3b8>] (__do_softirq+0xd4/0x22c)
[   79.931945] [<c003a3b8>] (__do_softirq+0xd4/0x22c) from [<c003a924>] (irq_exit+0x8c/0x94)
[   79.940582] [<c003a924>] (irq_exit+0x8c/0x94) from [<c0013a50>] (handle_IRQ+0x34/0x84)
[   79.948913] [<c0013a50>] (handle_IRQ+0x34/0x84) from [<c0008530>] (omap3_intc_handle_irq+0x48/0x4c)
[   79.958404] [<c0008530>] (omap3_intc_handle_irq+0x48/0x4c) from [<c037499c>] (__irq_usr+0x3c/0x60)
[   79.967773] Exception stack(0xcf281fb0 to 0xcf281ff8)
[   79.973083] 1fa0:                                     0001e6a0 be8dab00 0001e698 00036698
[   79.981658] 1fc0: 0002df98 0002df38 0000001f 00000000 b6f234d0 00000000 00000004 00000000
[   79.990234] 1fe0: 0001e6f8 be8d6aa0 be8dac50 0000aab8 80000010 ffffffff
[   79.997161] Code: bad PC value
[   80.000396] ---[ end trace 6f6739840475f9ee ]---
[   80.005279] Kernel panic - not syncing: Fatal exception in interrupt

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-03-28 12:02:35 -03:00
Hemant Gupta 3f17790c2d Bluetooth: Use correct flags for checking HCI_SSP_ENABLED bit
This patch uses the correct flags for checking the HCI_SSP_ENABLED bit.
Without this authentication request was not being initiated.

Signed-off-by: Hemant Gupta <hemant.gupta@stericsson.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-03-28 12:02:19 -03:00
Gustavo F. Padovan 04124681f1 Bluetooth: fix conding style issues all over the tree
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2012-03-08 02:02:26 -03:00
Gustavo F. Padovan f64b993f44 Bluetooth: Fix coding style in all .h files
Proper align the struct definitions.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2012-03-07 00:04:25 -03:00
Gustavo F. Padovan 044e124734 Bluetooth: Use correct type for userspace exported structs
It should be __u8 instead of u8.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2012-03-07 00:04:24 -03:00
Gustavo F. Padovan c476250734 Bluetooth: Fix coding style in mgmt.h
Align struct definition in a proper way.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2012-03-07 00:04:23 -03:00
Johan Hedberg 4f87da80a5 Bluetooth: Remove HCI_PI_MGMT_INIT flag for sockets
This flag is of no use right now and is in fact harmful in that it
prevents the HCI_MGMT flag to be set for any controllers that may need
it after the first one that bluetoothd takes into use (the flag is
cleared for the first controller so any subsequent ones through the same
bluetoothd mgmt socket never get the HCI_MGMT flag set).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-03-03 01:28:47 +02:00
Johan Hedberg 5f15903279 Bluetooth: mgmt: Add new error code for invalid index
The index is part of the command header and not its parameters so it
makes sense to distinguish this from the invalid parameters error.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-03-02 03:19:24 +02:00
Marcel Holtmann ba13ccd9b9 Bluetooth: Update L2CAP timeout constants to use msecs_to_jiffies
The L2CAP timeout constants are always used in form of jiffies. So just
include the conversion from msecs in the define itself. This has the
advantage of making the code where the timeout is used more readable.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-03-02 00:33:14 +02:00
Johan Hedberg 9d1acbfb77 Bluetooth: mgmt: Add defines for command sizes
These defines are shorter than "sizeof(struct mgmt_cp_foo_bar...)" and
will be helpful when extending the command lookup table to contain the
expected command size information.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-03-01 23:55:58 +02:00
Andrei Emeltchenko 978c93b90f Bluetooth: Save remote L2CAP fixed channel mask
Fixed channel mask needs to be stored to decide whether to
use A2MP for example. So far save only one relevant byte which
keeps all information we need.

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>
2012-02-29 16:20:19 +02:00
Johan Hedberg cc2c04ec1e Bluetooth: Add missing host features definitions
This patch adds missing SSP and "Simultaneous LE & BR/EDR" feature bit
definitions to hci.h.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-28 02:06:20 +02:00
Johan Hedberg 816a11d5ce Bluetooth: Use kernel int types instead of ones from stdint.h
u8/__u8/u32/etc should be used in the kernel instead of stdint.h types.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-27 12:34:39 +02:00
Johan Hedberg c95f0ba76f Bluetooth: mgmt: Track pending class changes
This patch adds a flag to track pending changes to the class of device.
This is needed since we cannot cleanly handle multiple simultaneous
commands and need to return a "busy" error status in the mgmt commands
that might trigger a class change.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-24 00:15:26 +02:00
Johan Hedberg 08c79b6133 Bluetooth: mgmt: Add flags parameter to device_connected
This patch updates the Device Connected events to match the latest API
by adding a flags parameter to them.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-23 22:39:17 +02:00
Johan Hedberg 388fc8faf2 Bluetooth: mgmt: Add legacy pairing info to dev_found events
This patch makes sure that legacy pairing vs SSP infomation gets
properly propageted to the device_found events in the form of the legacy
pairing flag.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-23 13:07:01 +02:00
Johan Hedberg 9a395a80dc Bluetooth: mgmt: Fix device_found parameters
According to the latest mgmt API there's a flags field instead of a
separate confirm_name paramter.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-23 13:07:01 +02:00
Johan Hedberg 490c5baba7 Bluetooth: Add hdev->short_name for EIR generation
It's possible to provide a short name through the mgmt interface and
this name can be used for EIR generation when the full name doesn't fit
there. This patch adds the preliminary tracking of the provided short
name.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-23 13:07:00 +02:00
Marcel Holtmann 7f9a903c57 Bluetooth: Send management event for class of device changes
Currently there are no events to other management sockets if the class of
device got changed. So make sure they are sent.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-23 13:07:00 +02:00
Johan Hedberg 06199cf86a Bluetooth: mgmt: Implement Set LE command
This patch implements support for the Set LE mgmt command. Now, in
addition to the enable_le module parameter user space needs to send an
explicit Enable LE command to enable LE support.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-23 13:06:59 +02:00
Johan Hedberg c0ecddc250 Bluetooth: mgmt: Make Set SSP command callable while powered off
This patch makes it possible to enable SSP through mgmt even when
powered off. The setting will then get automatically actiated when
powering on.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-23 13:06:58 +02:00