This patch adds a new field (dst_type) to the struct hci_conn which
holds the type of the destination address (bdaddr_t dst). This
approach is needed in order to use the struct hci_conn as an
abstraction of LE connections in HCI Layer. For non-LE this field
is ignored.

This patch also set properly the 'dst_type' field after initializing
LE hci_conn structures.
Signed-off-by: NAndre Guedes <andre.guedes@openbossa.org>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Legacy devices don't re-authenticate the link properly if a link key
already exists.  Thus, don't update sec_level for this case even if
hci_auth_complete_evt indicates success. Otherwise the sec_level will
not reflect a real security on the link.
Signed-off-by: NWaldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a timer to clear 'adv_entries' after three minutes.

After some amount of time, the advertising entries cached during
the last LE scan should be considered expired and they should be
removed from the advertising cache.

It was chosen a three minutes timeout as an initial attempt. This
value might change in future.
Signed-off-by: NAndre Guedes <andre.guedes@openbossa.org>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch implements the LE advertising cache. It stores sensitive
information (bdaddr and bdaddr_type so far) gathered from LE
advertising report events.

Only advertising entries from connectables devices are added to the
cache.
Signed-off-by: NAndre Guedes <andre.guedes@openbossa.org>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

In case of pre v2.1 devices authentication request will return
success immediately if the link key already exists without any
authentication process.

That means, it's not possible to re-authenticate the link if you
already have combination key and for instance want to re-authenticate
to get the high security (use 16 digit pin).

Therefore, it's necessary to check security requirements on auth
complete event to prevent not enough secure connection.
Signed-off-by: NWaldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Even for keys that shouldn't be stored some use cases require the
knowledge of a new key having been created so that the conclusion of a
successful pairing can be made. Therefore, always send the mgmt_new_key
event but add a store_hint parameter to it to indicate to user space
whether the key should be stored or not.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

User space shouldn't have any need for the old key type so remove it
from the corresponding Management interface event.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Link keys should only be stored if very specific criteria of the
authentication process are fulfilled. This patch essentially copies the
criteria that user space has so far been using to the kernel side so
that the management interface works properly.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

When accepting a pairing request which fulfills the SSP auto-accept
criteria we need to push the request all the way to the user for
confirmation. This patch adds a new hint to the user_confirm_request
management event so user space can know when to show a numeric
comparison dialog and when to show a simple yes/no confirmation dialog.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Some test systems require an arbitrary delay to the auto-accept test
cases for Secure Simple Pairing in order for the tests to pass.
Previously when this was handled in user space it was worked around by
code modifications and recompilation, but now that it's on the kernel
side it's more convenient if there's a debugfs interface for it.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Extend the mgmt_pin_code_request interface to require secure
pin code (16 digit) for authentication.

This is a kernel part of the secure pin code requirement notification
to user space agent.

Code styling fix by Johan Hedberg.
Signed-off-by: NWaldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Keep the link key type together with connection and use it to
map security level to link key requirements. Authenticate and/or
encrypt connection if the link is insufficiently secure.
Signed-off-by: NWaldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a new event to the Management interface to track when
local adapters are discovering remote devices. For now this only tracks
BR/EDR discovery procedures.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NAnderson Briglia <anderson.briglia@openbossa.org>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a new remote_name event to the Management interface
which is sent every time the name of a remote device is resolved (over
BR/EDR).
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a device_found event to the Management interface. For
now the event only maps to BR/EDR inquiry result HCI events, but in the
future the plan is to also use it for the LE device discovery process.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds automated creation of the local EIR data based on what
16-bit UUIDs are registered and what the device name is. This should
cover the majority use cases, however things like 32/128-bit UUIDs, TX
power and Device ID will need to be added later to be on par with what
bluetoothd is capable of doing (without the Management interface).
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds commands to add and remove remote OOB data to the managment
interface. Remote data is stored in kernel and can be used by corresponding
HCI commands and events when needed.
Signed-off-by: NSzymon Janc <szymon.janc@tieto.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a command to read local OOB data to the managment interface.
The command maps directly to the Read Local OOB Data HCI command.
Signed-off-by: NSzymon Janc <szymon.janc@tieto.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a new set_local_name management command as well as a
local_name_changed management event. With these user space can both
change the local name as well as monitor changes to it by others.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a clear define for the maximum device name length in HCI
messages and thereby avoids magic numbers in the code.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

To properly track bonding completion an event to indicate authentication
failure is needed. This event will be sent whenever an authentication
complete HCI event with a non-zero status comes. It will also be sent
when we're acting in acceptor role for SSP authentication in which case
the controller will send a Simple Pairing Complete event.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds support for the user confirmation (numeric comparison)
Secure Simple Pairing authentication method.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a new mgmt_pair_device which can be used to initiate a
dedicated bonding procedure. Some extra callbacks are added to the
hci_conn struct so that the pairing code can get notified of the
completion of the procedure.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Signed-off-by: NSzymon Janc <szymon.janc@tieto.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

If the new connection update parameter are accepted, the LE master
host sends the LE Connection Update Command to its controller informing
the new requested parameters.
Signed-off-by: NClaudio Takahasi <claudio.takahasi@openbossa.org>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Use proper timer instead of hci command flow control to timeout
failed hci commands. Otherwise stack ends up sending commands
when flow control is used to block new commands.

2010-09-01 18:29:41.592132 < HCI Command: Remote Name Request (0x01|0x0019) plen 10
    bdaddr 00:16:CF:E1:C7:D7 mode 2 clkoffset 0x0000
2010-09-01 18:29:41.592681 > HCI Event: Command Status (0x0f) plen 4
    Remote Name Request (0x01|0x0019) status 0x00 ncmd 0
2010-09-01 18:29:51.022033 < HCI Command: Remote Name Request Cancel (0x01|0x001a) plen 6
    bdaddr 00:16:CF:E1:C7:D7
Signed-off-by: NVille Tervo <ville.tervo@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Bluetooth chips may have separate buffers for LE traffic.
This patch add support to use LE buffers provided by the chip.
Signed-off-by: NVille Tervo <ville.tervo@nokia.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Bluetooth V4.0 adds support for Low Energy (LE) connections.
Specification introduces new set of hci commands to control LE
connection. This patch adds logic to create, cancel and disconnect
LE connections.
Signed-off-by: NVille Tervo <ville.tervo@nokia.com>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a new set_io_capability management command which is used
to set the IO capability for Secure Simple Pairing (SSP) as well as the
Security Manager Protocol (SMP). The value is per hci_dev and each
hci_conn object inherits it upon creation.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds the necessary commands and events needed to communicate
PIN code related actions between the kernel and userspace. This includes
a pin_code_request event as well as pin_code_reply and
pin_code_negative_reply commands.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch add a new connect failed management event to track failures
in connecting to remote devices. It is particularly useful for security
mode 3 scenarios when we don't have a connected state while pairing but
still need to detect when the connect attempt failed.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a disconnect command to the managment interface. Using
this command user space is able to force the disconnection of connected
devices. The command maps directly to the Disconnect HCI command.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds connected and disconnected managment events to track the
connection status to remote devices. The events map directly to
successful connection complete and disconnection complete HCI events for
ACL links.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a management commands to feed the kernel with all stored
link keys as well as remove specific ones or all of them. Once the
load_keys command has been called the kernel takes over link key
replies. A new_key event is also added to inform userspace of newly
created link keys that should be stored permanently.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds the possibility for user space to fully control the
Class of Device value of local adapters. To control the service class
bits each UUID that's added comes with a service class "hint" which acts
as a mask of bits that the UUID needs to have enabled. The
set_service_cache management command is used to make sure we queue up
all UUID changes as user space initializes its drivers and then send a
single HCI_Write_Class_of_Device command when initialization is
complete.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

Using the managment interface means that user space doesn't need to do
any HCI command sending at all. This patch moves the remaining
initialization commands from user space to the kernel side. The patch
makes use of the new feature of __hci_request which allows the request
to be dynamically modified while it is ongoing (something that is needed
to react appropriately to the local features and the version of the
adapter).
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

To support a more dynamic HCI initialization sequence the __hci_request
behavior requires some more changes. Particularly, the init sequence
should be able to have conditionals in it (sending some HCI commands
depending on the outcome of a previous command) instead of being a fixed
list as it is right now.

The reasons for these additional requirements are the moving all
previously user space driven initialization commands to the kernel side
as well as the support the Low Energy controllers.

To fulfull these requirements the init sequence is made the only special
case for multi-command requests and req_last_cmd is renamed to
init_last_cmd. The hci_send_cmd function is changed to update
init_last_cmd as long as the HCI_INIT flag is set.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds the necessary logic to act accordingly when the
HCI_PAIRABLE flag is not set. In that case PIN code replies as well as
Secure Simple Pairing requests without a NoBonding requirement need to
be rejected.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds methods to the management interface for userspace to
notify the kernel of which services have been registered for specific
adapters. This information is needed for setting the appropriate Class
of Device value as well as the Extended Inquiry Response value. This
patch doesn't actually implement setting of these values but just
provides the storage of the UUIDs so the needed functionality can be
built on top of it.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

This patch adds a set_connectable command as well as a corresponding
event to the management interface. It's mainly useful for setting an
adapter as connectable from a non-initialized state as well as setting
an already initialized adapter as non-connectable (mostly useful for
qualification purposes).
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>