Commit Graph

1024 Commits

Author SHA1 Message Date
David S. Miller
1805b2f048 Merge branch 'master' of ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-10-24 18:18:09 -04:00
Paul Moore
6230c9b4f8 bluetooth: Properly clone LSM attributes to newly created child connections
The Bluetooth stack has internal connection handlers for all of the various
Bluetooth protocols, and unfortunately, they are currently lacking the LSM
hooks found in the core network stack's connection handlers.  I say
unfortunately, because this can cause problems for users who have have an
LSM enabled and are using certain Bluetooth devices.  See one problem
report below:

 * http://bugzilla.redhat.com/show_bug.cgi?id=741703

In order to keep things simple at this point in time, this patch fixes the
problem by cloning the parent socket's LSM attributes to the newly created
child socket.  If we decide we need a more elaborate LSM marking mechanism
for Bluetooth (I somewhat doubt this) we can always revisit this decision
in the future.

Reported-by: James M. Cape <jcape@ignore-your.tv>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-18 23:36:43 -04:00
John W. Linville
094daf7db7 Merge branch 'master' of git://git.infradead.org/users/linville/wireless-next into for-davem
Conflicts:
	Documentation/feature-removal-schedule.txt
2011-10-11 15:35:42 -04:00
John W. Linville
8e00f5fbb4 Merge branch 'master' of git://git.infradead.org/users/linville/wireless-next into for-davem
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-pci.c
	drivers/net/wireless/wl12xx/main.c
2011-09-30 14:52:29 -04:00
Andre Guedes
e95beb4141 Bluetooth: hci_le_adv_report_evt code refactoring
There is no reason to treat the first advertising entry differently
from the potential other ones. Besides, the current implementation
can easily leads to typos.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-29 15:25:08 -03:00
Waldemar Rymarkiewicz
b6f98044a6 Bluetooth: Fix possible NULL pointer dereference
Checking conn->pending_sec_level if there is no connection leads to potential
null pointer dereference. Don't process pin_code_request_event at all if no
connection exists.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-29 15:23:58 -03:00
Szymon Janc
67c9e840a0 Bluetooth: Mark not declared l2cap_core functions as static
Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-27 18:20:19 -03:00
Anderson Lizardo
0e8339151f Bluetooth: use recommended LE connection parameters
The new connection parameters now match the recommended values for
Proximity and Health Thermometer profiles. The previous values were
ramdomly chosen, and are either too low or too high for most cases.

New values:

Scan Interval: 60 ms
Scan Window: 30 ms
Minimum Connection Interval: 50 ms
Maximum Connection Interval: 70 ms
Supervision Timeout: 420 ms

See "Table 5.2: Recommended Scan Interval and Scan Window Values" and
"Table 5.3: Recommended Connection Interval Values" for both profiles
for details. Note that the "fast connection" parameters were chosen,
because we do not support yet dynamically changing these parameters from
initiator side.

Additionally, the Proximity profile recommends (section "4.4 Alert on
Link Loss"):

"It is recommended that the Link Supervision Timeout (LSTO) is set to 6x
the connection interval."

Minimum_CE_Length and Maximum_CE_Length were also changed from 0x0001 to
0x0000 because they are informational and optional, and old value was
not reflecting reality.

Signed-off-by: Anderson Lizardo <anderson.lizardo@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-27 18:16:27 -03:00
Mat Martineau
84084a3197 Bluetooth: Perform L2CAP SDU reassembly without copying data
Use sk_buff fragment capabilities to link together incoming skbs
instead of allocating a new skb for reassembly and copying.

The new reassembly code works equally well for ERTM and streaming
mode, so there is now one reassembly function instead of two.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-27 18:16:18 -03:00
Mat Martineau
5b668eb327 Bluetooth: Handle fragmented skbs in bt_sock_stream_recvmsg()
ERTM reassembly will be more efficient when skbs are linked together
rather than copying every incoming data byte. The existing stream recv
function assumes skbs are linear, so it needs to know how to handle
fragments before reassembly is changed.

bt_sock_recvmsg() already handles fragmented skbs.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-27 18:16:07 -03:00
Mat Martineau
449357200c Bluetooth: Linearize skbs for use in BNEP, CMTP, HIDP, and RFCOMM
Fragmented skbs are only encountered when receiving ERTM or streaming
mode L2CAP data.  BNEP, CMTP, HIDP, and RFCOMM generally use basic
mode, but they need to handle fragments without crashing.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-27 18:15:55 -03:00
David S. Miller
8decf86879 Merge branch 'master' of github.com:davem330/net
Conflicts:
	MAINTAINERS
	drivers/net/Kconfig
	drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
	drivers/net/ethernet/broadcom/tg3.c
	drivers/net/wireless/iwlwifi/iwl-pci.c
	drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
	drivers/net/wireless/rt2x00/rt2800usb.c
	drivers/net/wireless/wl12xx/main.c
2011-09-22 03:23:13 -04:00
Luiz Augusto von Dentz
ab0ff76d1b Bluetooth: mark l2cap_create_iframe_pdu as static
l2cap_create_iframe_pdu is only used in l2cap_core.c

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:59:16 -03:00
Andre Guedes
f8523598ee Bluetooth: Check 'dev_class' in mgmt_device_found()
The mgmt_device_found event will be used to report LE devices found
during discovery procedure. Since LE advertising reports events
doesn't have class of device information, we need to check if
'dev_class' is not NULL before copying it.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:59:16 -03:00
Andre Guedes
a8f13c8cd2 Bluetooth: Reduce critical region.
This patch reduces the critial region (protected by hdev->lock) in
hci_cc_le_set_scan_enable(). This way, only really required code is
synchronized.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:59:16 -03:00
Anderson Briglia
51beabdf62 Bluetooth: Fix wrong memcpy size on LE start encryption
This patch fixes wrong memcpy size when copying rand value to
HCI_OP_LE_START_ENC command.
The compiler pretends that the array parameter was declared as a pointer
and sizeof reports the size of the pointer. [1]

[1] http://www.c-faq.com/aryptr/aryparmsize.html

Signed-off-by: Anderson Briglia <anderson.briglia@openbossa.org>
Signed-off-by: Anderson Lizardo <anderson.lizardo@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:59:16 -03:00
Vinicius Costa Gomes
ca10b5ee0c Bluetooth: Remove support for other SMP keys than the LTK
For now, only the LTK is properly supported. We are able to receive
and generate the other types of keys, but we are not able to use
them. So it's better not request them to be distributed.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:59:16 -03:00
Vinicius Costa Gomes
feb45eb596 Bluetooth: Fix not setting a pending security level
For slave initiated security, we should set a default security level,
for now BT_SECURITY_MEDIUM.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:59:15 -03:00
Vinicius Costa Gomes
a492cd52b5 Revert "Bluetooth: Add support for communicating keys with userspace"
This reverts commit 5a0a8b4974.

If we use separate messages and list for SMP specific keys we can
simplify the code.

Conflicts:

	net/bluetooth/mgmt.c

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:59:15 -03:00
Vinicius Costa Gomes
988c5997d3 Bluetooth: Use the LTK after receiving a LE Security Request
When receiving a security request from the remote device we should find
if there is already a LTK associated with the remote device, if found
we should use it to encrypt the link.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:59:15 -03:00
Vinicius Costa Gomes
0fb4eb6f63 Bluetooth: Fix sending wrong authentication requirements
Until we support any pairing method (Passkey Entry, OOB) that gives
MITM protection we shouldn't send that we have MITM protection.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:59:15 -03:00
Antti Julku
5e762444b0 Bluetooth: Add mgmt events for blacklisting
Add management interface events for blocking/unblocking a device.
Sender of the block device command gets cmd complete and other
mgmt sockets get the event. Event is also sent to mgmt sockets when
blocking is done with ioctl, e.g when blocking a device with
hciconfig. This makes it possible for bluetoothd to track status
of blocked devices when a third party block or unblocks a device.

Event sending is handled in mgmt_device_blocked function which gets
called from hci_blacklist_add in hci_core.c. A pending command is
added in mgmt_block_device, so that it can found when sending the
event - the event is not sent to the socket from which the pending
command came. Locks were moved out from hci_core.c to hci_sock.c
and mgmt.c, because locking is needed also for mgmt_pending_add in
mgmt.c.

Signed-off-by: Antti Julku <antti.julku@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:59:15 -03:00
Vinicius Costa Gomes
c908df362c Bluetooth: Use the MEDIUM security level for pairings
This lifts the requirement of 16 digits pin codes when pairing
with devices that do not support SSP when using the mgmt interface.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:13 -03:00
Vinicius Costa Gomes
e9bf2bf03e Bluetooth: Require authentication if MITM protection is requested
The HIGH security level requires a 16 digit pin code for non-SSP
bondings. Sometimes this requirement is not acceptable and we still
want protection againts MITM attacks (which is something that the
MEDIUM security level doesn't provide), for that we should allow
another way to request authentication without using the HIGH security
level.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:12 -03:00
Vinicius Costa Gomes
8aab47574a Bluetooth: Move SMP crypto functions to a workqueue
The function crypto_blkcipher_setkey() called by smp_e()
can sleep, so all the crypto work has to be moved to
hci_dev workqueue.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:12 -03:00
Vinicius Costa Gomes
1c1def09c4 Bluetooth: Move SMP fields to a separate structure
The objective is to make the core to have as little as possible
information about SMP procedures and logic. Now, all the SMP
specific information is hidden from the core.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:12 -03:00
David Herrmann
142c69c6ea Bluetooth: hidp: Add support for NO_INIT_REPORTS quirk
During setup the host initializes all HID reports. Some devices do not
support this. If this quirk is set, we skip the initialization.
See also usbhid_init_reports() for this quirk.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:12 -03:00
Peter Hurley
21061df3a2 Bluetooth: Add LE link type for debugfs output
Add LE link type as known connection type for debugfs stringizing
output.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:12 -03:00
Antti Julku
f6422ec624 Bluetooth: Add mgmt command for fast connectable mode
Add command to management interface for enabling/disabling the
fast connectable mode.

Signed-off-by: Antti Julku <antti.julku@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:12 -03:00
Vinicius Costa Gomes
cfafccf730 Bluetooth: Add link_type information to the mgmt Connected event
One piece of information that was lost when using the mgmt interface,
was the type of the connection. Using HCI events we used to know
the type of the connection based on the type of the event, e.g.
HCI_LE_Connection_Complete for LE links.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:11 -03:00
Vinicius Costa Gomes
160dc6ac12 Bluetooth: Add support for running SMP without a socket
When doing the pairing procedure we won't have an associated
socket, but we still have to do the SMP negotiation. This
adds support for encrypting the link and exchanging keys.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:11 -03:00
Vinicius Costa Gomes
7a512d0172 Bluetooth: Add support for pairing via mgmt over LE
Using the advertising cache we are able to infer the type
of the remote device, and so trigger pairing over the correct
link type.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:11 -03:00
Vinicius Costa Gomes
d26a234548 Bluetooth: Add a flag to indicate that SMP is going on
Add HCI_CONN_LE_SMP_PEND flag to indicate that SMP is pending
for that connection. This allows to have information that an SMP
procedure is going on for that connection.

We use the HCI_CONN_ENCRYPT_PEND to indicate that encryption
(HCI_LE_Start_Encryption) is pending for that connection.

While a SMP procedure is going on we hold an reference to the
connection, to avoid disconnections.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:11 -03:00
Vinicius Costa Gomes
e2dcd113d1 Bluetooth: Reset the security timer when a command is queued
Each time a SMP command is enqueued, we reset the SMP timer,
this way we follow exactly what the spec mandates:

"The Security Manager Timer shall be reset when an L2CAP SMP command is
queued for transmission." Vol. 3, Part H, Section 3.4

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:10 -03:00
Luiz Augusto von Dentz
52087a792c Bluetooth: make use of connection number to optimize the scheduler
This checks if there is any existing connection according to its type
before start iterating in the list and immediately stop iterating when
reaching the number of connections.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-21 12:58:10 -03:00
Oliver Neukum
2d20a26a92 Bluetooth: Fix timeout on scanning for the second time
The checks for HCI_INQUIRY and HCI_MGMT were in the wrong order,
so that second scans always failed.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-09-15 11:54:05 -03:00
Jiri Pirko
afc4b13df1 net: remove use of ndo_set_multicast_list in drivers
replace it by ndo_set_rx_mode

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-17 20:22:03 -07:00
Peter Hurley
687beaa0d1 Bluetooth: cmtp: Fix session cleanup on failed conn add
Once the session thread is running, cleanup must be handled
by the session thread only.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:28 -03:00
Peter Hurley
ff062ea109 Bluetooth: hidp: Don't release device ref if never held
When an hidp connection is added for a boot protocol input
device, don't release a device reference that was never
acquired. The device reference is acquired when the session
is linked to the session list (which hasn't happened yet when
hidp_setup_input is called).

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:28 -03:00
Peter Hurley
615aedd6e5 Bluetooth: hidp: Only free input device if failed register
When an hidp connection is added for a boot protocol input
device, only free the allocated device if device registration fails.
Subsequent failures should only unregister the device (the input
device api documents that unregister will also free the allocated
device).

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:28 -03:00
Peter Hurley
1c97e94c0b Bluetooth: hidp: Fix memory leak of cached report descriptor
Free the cached HID report descriptor on thread terminate.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:28 -03:00
Peter Hurley
e9d5cb541b Bluetooth: hidp: Fix session cleanup on failed conn add
Once the session thread is running, cleanup must be
handled by the session thread only.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:28 -03:00
Peter Hurley
7176522cdc Bluetooth: cmtp: Fix deadlock in session deletion
Commit fada4ac339 introduced the usage of kthread API.
kthread_stop is a blocking function which returns only when
the thread exits. In this case, the thread can't exit because it's
waiting for the write lock, which is being held by cmtp_del_connection()
which is waiting for the thread to exit -- deadlock.

Revert cmtp_reset_ctr to its original behavior: non-blocking signalling
for the session to terminate.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Peter Hurley
751c10a568 Bluetooth: bnep: Fix deadlock in session deletion
Commit f4d7cd4a4c introduced the usage of kthread API.
kthread_stop is a blocking function which returns only when
the thread exits. In this case, the thread can't exit because it's
waiting for the write lock, which is being held by bnep_del_connection()
which is waiting for the thread to exit -- deadlock.

Use atomic_t/wake_up_process instead to signal to the thread to exit.

Signed-off-by: Jaikumar Ganesh <jaikumar@google.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Szymon Janc
7bdb8a5cf1 Bluetooth: Don't use cmd_timer to timeout HCI reset command
No command should be send before Command Complete event for HCI
reset is received. This fix regression introduced by commit
6bd32326cda(Bluetooth: Use proper timer for hci command timout)
for chips whose reset command takes longer to complete (e.g. CSR)
resulting in next command being send before HCI reset completed.

Signed-off-by: Szymon Janc <szymon@janc.net.pl>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Chen Ganir
6be6b11f00 Bluetooth: Fixed wrong L2CAP Sock timer value
L2CAP connection timeout needs to be assigned as miliseconds
and not as jiffies.

Signed-off-by: Chen Ganir <chen.ganir@ti.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Peter Hurley
a71a0cf4e9 Bluetooth: l2cap: Fix lost wakeup waiting for ERTM acks
Fix race condition which can result in missing wakeup during
l2cap socket shutdown.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Peter Hurley
3a3f5c7df5 Bluetooth: cmtp: Fix lost wakeup of session thread
Fix race condition which can result in missing the wakeup intended
to stop the session thread.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Peter Hurley
38d5755561 Bluetooth: bnep: Fix lost wakeup of session thread
Fix race condition which can result in missing the wakeup intended
to stop the session thread.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:26 -03:00
Peter Hurley
552b0d3cb9 Bluetooth: sco: Fix lost wakeups waiting to accept socket
Fix race conditions which can cause lost wakeups (or missed signals)
while waiting to accept a sco socket connection.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:26 -03:00