The kernel has no need to track the hci_read_ssp_mode command since it
has the hci_sent_cmd_data function to check what value was set when
hci_write_ssp_mode completes.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
This patch makes it possible to change the Link Security setting while
powered off and have it automatically enabled when powering on a device.
To track the desired state once powered on a new HCI_LINK_SECURITY flag
is added.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Use locked and unlocked versions to help removing socket
locks from l2cap core functions.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Reviewed-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Split to locked and unlocked versions of l2cap_state_change helping
to remove socket locks from l2cap code.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Channel lock will be used to lock L2CAP channels which are locked
currently by socket locks.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Usage of RCU list looks not reasonalbe for a number of reasons:
our code sleep and we had to use socket spinlocks. Most parts
of code are updaters thus there is little sense to use RCU.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Reviewed-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The connectable/discoverable flags need to be changed before sending the
response since otherwise the settings value will be incorrect.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Now that most flags are persistent, only the LE_SCAN flag should be
cleared after a reset.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
When powered off and doing changes to the Connectable or Discoverable
setting we should also send an appropriate New Settings event in
addition to the command response.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
The New Settings event needs to be sent from quite many places so it
makes sense to have a convenience function for it to simplify the code.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
We should not stop iterating through the various settings if powered off
since most may still be set even then.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
When switching connectable mode off any pending discoverable timeout
must also be disabled to avoid duplicate write_scan_enable commands.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
This patch makes it possible to toggle the connectable & discoverable
settings when powered off. Two new hdev->dev_flags flags are added to
track what the scan mode should be when the device is finally powered
on.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
When mgmt is not in use the HCI_PAIRABLE flag will get implicitly set so
that pairing still works with old user space versions. However, as soon
as mgmt comes into play we should clear this flag so that it can be
properly set through the set_pairable command by user space.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
This patch ensures that Set Fast Connectable fails apropriately if we
are not already in a connectable state (which is a pre-requisite for
fast connectable).
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Both the Set Local Name and the Set Device Class commands should fail if
the adapter is not powered on.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Having the HCI_AUTO_OFF flag set means that from a mgmt interface
perspective we're still not powered, so all tests for HCI_UP should also
include a test for HCI_AUTO_OFF. This patch adds a convenience macro for
it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
When the controller gets brought up for initial setup, it will be brought
back down after a timeout. In that case, don't send a New Settings event.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
When a new controller gets added to the system, it needs to be brought
up briefly to read basic information like features, BD_ADDR etc. and
after a timeout it will be brought back down.
The only command that should overwrite this timeout is the set power
command from the management interface. Just reading the controller
list or information is not a good reason to keep the controller up.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The parameter list for setting the local name via management interface
was missing the short name parameter.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
EIR shouldn't be enabled if SSP isn't enabled. This patch adds the
clearing of EIR data when disabling SSP and restores the data when SSP
is re-enabled.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
If the local controller doesn't support SSP we should always return an
error for the Set SSP command.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds rudimentary support for the Set High Speed command in
the form of a new HCI dev flag (HCI_HS_ENABLED).
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds an address type parameter to the Discovering event. The
value matches that given to Start/Stop Discovery.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds an address type parameter to the Stop Discovery command
which should match the value given to Start Discovery.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
The management interface API has reached stable version 1.0 and thus
it can now be always enabled. All future changes will be made backwards
compatible.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Since neither High Speed (HS) nor Low Energy (LE) are fully implemented
yet, only expose them in supported settings when enabled.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The management interface on the HCI control channel should be restricted
to applications with CAP_NET_ADMIN permission.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The HCI monitor channel can be used to monitor all packets and events
from the Bluetooth subsystem. The monitor is not bound to any specific
HCI device and allows even capturing multiple devices at the same time.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The HCI notifier handling was never used outside of Bluetooth core layer
and thus remove it and replace it with direct function calls. Also move
the stack internal event generation into the HCI socket layer.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Any HCI raw socket gets a copy of each SKB that is either received or
send via the Bluetooth subsystem. The raw socket uses SKB clones to
send out data, but the problem is that it needs to add an extra packet
type byte in front of it. And some drivers need to also add an extra
header before submitting the packet.
So far this all worked magically fine since all of the drivers and the
raw sockets are adding the same byte at the same location. But that is
by pure coincidence. Since the data of cloned SKBs is shared, this means
that the raw socket and driver kept writing into the shared data area.
To fix this the only safe way is if the HCI raw socket creates a copy of
the SKB before sending it out. To not always copy all SKBs around, the
copy is only created once and only after any of the HCI filter checks
succeeded.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The HCI socket bind handling checks a few too many times the channel
we are binding. So centralize this and make the function easier to read.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The HCI CMSG specific data is for raw sockets only. So only add them to
actual raw sockets.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
When reading the HCI raw socket option, the socket was never locked. So
lock the socket and in addition return EINVAL on non raw sockets.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Currently the socket options of HCI sockets can be set on raw and control
sockets, but on control sockets they make no sense. So just return EINVAL
in that case.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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>
The sending functions for HCI raw and control sockets have nothing in
common except that they iterate over the socket list. Split them into
two so they can do their job more efficient. In addition the code becomes
more readable.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The hci_connect function should either return a valid hci_conn pointer
or a ERR_PTR() but never NULL. This patch fixes the two places where
hci_conn_add failures would have caused a NULL return. The only reason
for failure with hci_conn_add is memory allocation so ENOMEM seems to be
a good choice here.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
This patch bumps the mgmt version to 1 and resets the revision to 0.
This is in order to indicate API stability to user space. The mgmt API
has reached a point where no major backwards incompatible changes are
expected so it makes sense to do this version bump now.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
The response to the Add/Remove Out Of Band Data commands should include
the same address as was given in the command itself.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
The same address as was passed to the (Un)Block Device command should
also be returned in the command response message.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
The same address type that was passed to the Start Discovery command
should also be returned in the response message.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
This patch fixes the status in Pair Device responses to follow proper
mgmt status values.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Instead of having status paramters part of each individual command
response it's simpler to just have the status as part of the command
complete header. This patch updates the code to follow this convention
and thereby also ensures compliance with the latest mgmt API
specification.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
In accordance to the latest mgmt API specification the opcode comes
first and then the status.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds interleaved discovery support to MGMT Start
Discovery command.
In case interleaved discovery is not supported (not a dual mode
device), we perform BR/EDR or LE-only discovery according to the
device capabilities.
Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This patch merges DISCOVERY_INQUIRY and DISCOVERY_LE_SCAN states
into a new state called DISCOVERY_FINDING.
From the discovery perspective, we are pretty much worried about
to know just if we are finding devices than what exactly phase of
"finding devices" (inquiry or LE scan) we are currently running.
Besides, to know if the controller is performing inquiry or LE scan
we should check HCI_INQUIRY or HCI_LE_SCAN bits in hdev flags.
Moreover, merging this two states will simplify the discovery state
machine and will keep interleaved discovery implementation simpler.
Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This patch adds to struct discovery_state the field 'type' so that
we can track the discovery type the device is performing.
Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
