With LE/SMP the completion of a security level elavation from medium to
high is indicated by a HCI Encryption Key Refresh Complete event. The
necessary behavior upon receiving this event is a mix of what's done for
auth_complete and encryption_change, which is also where most of the
event handling code has been copied from.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NGustavo Padovan <gustavo.padovan@collabora.co.uk>

This patch changes way LE Connection Complete event with error status are
handled. BDADDR returned in such event packet do not need to be valid and
should not be used to search for existing hci_conn. Instead, any hci_conn
with BT_CONNECT state should be matched since there can be only one
pending LE outgoing connection at any time.

If not handled properly, appriopriate hci_conn will not be removed and
subsequent connection to given peer will try to reuse it without making
actual connection attempt.

2012-05-07 11:21:39.133378 < HCI Command: LE Create Connection (0x08|0x000d) plen 25
    bdaddr 00:22:D0:10:13:EE type 1
2012-05-07 11:21:39.138774 > HCI Event: Command Status (0x0f) plen 4
    LE Create Connection (0x08|0x000d) status 0x00 ncmd 1
2012-05-07 11:21:44.752854 < HCI Command: LE Create Connection Cancel (0x08|0x000e) plen 0
2012-05-07 11:21:44.759475 > HCI Event: Command Complete (0x0e) plen 4
    LE Create Connection Cancel (0x08|0x000e) ncmd 1
2012-05-07 11:21:44.764479 > HCI Event: LE Meta Event (0x3e) plen 19
    LE Connection Complete
      status 0x02 handle 0, role master
      bdaddr 00:00:00:00:00:00 (Public)

[14898.739425] [6603] hci_connect: hci0 dst 00:22:D0:10:13:EE
[14898.739429] [6603] hci_conn_add: hci0 dst 00:22:D0:10:13:EE
[14898.739434] [6603] hci_conn_init_sysfs: conn ffff880079f03000
[14898.739440] [6603] hci_send_cmd: hci0 opcode 0x200d plen 25
[14898.739443] [6603] hci_send_cmd: skb len 28
[14898.739487] [6603] hci_chan_create: hci0 conn ffff880079f03000
...
[14938.860231] [55] hci_send_cmd: hci0 opcode 0x200e plen 0
...
[14938.876427] [55] hci_le_conn_complete_evt: hci0 status 2
[14938.876433] [55] hci_conn_add: hci0 dst 00:00:00:00:00:00
[14938.876439] [55] hci_conn_init_sysfs: conn ffff88007aeff800
[14938.876454] [55] hci_send_to_control: len 14
[14938.876470] [55] l2cap_connect_cfm: hcon ffff88007aeff800 bdaddr 00:00:00:00:00:00 status 2
[14938.876474] [55] hci_conn_del: hci0 conn ffff88007aeff800 handle 0
Signed-off-by: NAndrzej Kaczmarek <andrzej.kaczmarek@tieto.com>
Acked-by: NAndre Guedes <andre.guedes@openbossa.org>
Signed-off-by: NGustavo Padovan <gustavo.padovan@collabora.co.uk>

Signed-off-by: NAndrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Make the check more user friendly.
Signed-off-by: NGustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Most of the include were unnecessary or already included by some other
header.
Replace module.h by export.h where possible.
Signed-off-by: NGustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This is some leftover from the last patches that fixed style. It is mostly
line over 80 characters fixes reported by checkpatch.pl.
checkpatch.pl is clean for these files now.
Signed-off-by: NGustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Only obvious cases were left as inline, mostly oneline functions.
Signed-off-by: NGustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Remove magic number with defined link key size.
Signed-off-by: NAndrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Follow the net subsystem rules.
Signed-off-by: NGustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

If encryption change fails we should disconnect with auth failure error
code.
Signed-off-by: NGustavo Padovan <gustavo@padovan.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

The mgmt_device_found function expects to receive only the significant
part of the EIR data so it needs to be removed before calling the
function. This patch adds a new eir_get_length() helper function to
calculate the length of the significant part.
Signed-off-by: NVishal Agarwal <vishal.agarwal@stericsson.com>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

The right bit for "Inquiry with RSSI" is 0x02 and not 0x04 (which means
"Read Remote Extended Features Complete").
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

The mgmt_ev_device_connected signal must be sent before any event
indications happen for sockets associated with the connection. Otherwise
e.g. device authorization for the sockets will fail with ENOTCONN as
user space things that there is no baseband link.

This patch fixes the issue by ensuring that the device_connected event
if sent (if it hasn't been so already) as soon as the first ACL data
packet arrives from the remote device.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NGustavo Padovan <gustavo@padovan.org>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The Bluetooth Low Energy support so far was disabled by default via
a module parameter. With this change the module parameter will be removed
and Low Energy is enabled by default.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NGustavo Padovan <gustavo@padovan.org>

User-space pass the remote device address type to kernel through
struct sockaddr_l2 what makes the advertising useless. This patch
removes all advertising cache code.
Signed-off-by: NAndre Guedes <andre.guedes@openbossa.org>
Acked-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This patch adds management connect failed event when LE Create Connection
Command fails to inform user space that LE Connection failed to get
established.
Signed-off-by: NHemant Gupta <hemant.gupta@stericsson.com>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

This patch changes inquiry result function handlers so they ignore
inquiry result events if periodic inquiry is enabled.
Signed-off-by: NAndre Guedes <aguedespe@gmail.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NGustavo Padovan <gustavo@padovan.org>

This patch adds the HCI_PERIODIC_INQ flag to dev_flags. This flag
tracks if periodic inquiry is enabled or not.
Signed-off-by: NAndre Guedes <aguedespe@gmail.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NGustavo Padovan <gustavo@padovan.org>

This patch adds a handler function to Periodic Inquiry command
complete event.
Signed-off-by: NAndre Guedes <aguedespe@gmail.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NGustavo Padovan <gustavo@padovan.org>

This patch adds LE support to MGMT stop discovery command. So,
now we are able to cancel LE discovery procedures (LE-only and
interleaved).
Signed-off-by: NAndre Guedes <andre.guedes@openbossa.org>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

Use struct hci_cp_write_def_link_policy to overcome sparse
warnigs below:

...
net/bluetooth/hci_event.c:633:21: warning: incorrect type in assignment
(different base types)
net/bluetooth/hci_event.c:633:21:    expected unsigned short [unsigned]
[assigned] [usertype] link_policy
net/bluetooth/hci_event.c:633:21:    got restricted __le16 [usertype] <noident>
...
Signed-off-by: NAndrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

The Inquiry Response TX power tag should be added to the Extended
Inquiry Data (EIR) as well.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

In order to do interleaved discovery we should be in DISCOVERY_
FINDING state. Otherwise, discovery should be stopped.
Signed-off-by: NAndre Guedes <andre.guedes@openbossa.org>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Correct endian conversion reported by sparse
Signed-off-by: NAndrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Command complete event for HCI_OP_USER_PASSKEY_NEG_REPLY would result
in calling handler function also for HCI_OP_LE_SET_SCAN_PARAM. This
could result in undefined behaviour.
Signed-off-by: NSzymon Janc <szymon.janc@tieto.com>
Signed-off-by: NGustavo Padovan <gustavo@padovan.org>

If a key is non persistent then it should not be used in future
connections but it should be kept for current connection. And it
should be removed when connecion is removed.
Signed-off-by: NVishal Agarwal <vishal.agarwal@stericsson.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

Remove all #inclusions of asm/system.h preparatory to splitting and killing
it.  Performed with the following command:

perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *`
Signed-off-by: NDavid Howells <dhowells@redhat.com>

Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

When powering on we need to apply whatever name has been set through
mgmt_set_local_name. The appropriate place for this is mgmt_powered()
and not hci_setup() since this needs to be applied also if the HCI init
sequence was already completed but the adapter was still "powered off"
from a mgmt perspective due the the HCI_AUTO_OFF still being set.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>

When doing reset HCI_PENDING_CLASS is one of the flags that should be
cleared (since it's used for a pending HCI command and a reset clear all
pending commands).
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>

Our limit is 80 and broken lines should as right as possible.
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Last param of mgmt_device_connected is of pointer type, so use NULL
instead of 0 for it. This fix following sparse warning:

CHECK   net/bluetooth/hci_event.c
net/bluetooth/hci_event.c:3262:74: warning: Using plain integer as NULL pointer
Signed-off-by: NSzymon Janc <szymon@janc.net.pl>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

This patch fixes the code to use the proper LMP_HOST_SSP define instead
of magic values and thereby makes the code more readable.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>

Previously the write_le_enable would trigger a read_host_features
command but since we have access to the value LE support was set to we
can simply just clear or set the bit in hdev->host_features. This also
removes a second unnecessary read_host_features command from the device
initialization procedure since LE is only enabled after the first
read_host_features command completes.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>

Mark request status as done for Read Local Version HCI command. In AMP
initialization this HCI command is the last and needs to be completed.
Signed-off-by: NAndrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

With Bluetooth 1.1 controllers the last command in the HCI init sequence
will be a write_local_name, however there was no callback to indicate
init request completion in this case. This patch fixes the issue by
adding the necessary callback to the write_local_name_complete handler.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

This patch updates the Device Connected events to match the latest API
by adding a flags parameter to them.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>

If controller is reset during the discovery procedure, Start Discovery
command stops working. This can be easily reproduced by running
"hciconfig hci0 reset" while discovering devices, for instance.

We should force discovery state to DISCOVERY_STOPPED in case we receive
a reset command complete event. Otherwise we may stuck in one of the
active discovery states (DISCOVERY_INQUIRY, DISCOVERY_LE_SCAN and
DISCOVERY_RESOLVING) and subsequent Start Discovery commands will simply
fail.
Signed-off-by: NAndre Guedes <andre.guedes@openbossa.org>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

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: NJohan Hedberg <johan.hedberg@intel.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>