This patch basically replaces legacy adv with extended adv
based on the controller support. Currently there is no
design change. ie only one adv set will be enabled at a time.

This also adds tx_power in instance and store whatever returns
from Set_ext_parameter, use the same in adv data as well.
For instance 0 tx_power is stored in hdev only.

< HCI Command: LE Set Extended Advertising Parameters (0x08|0x0036) plen 25
        Handle: 0x00
        Properties: 0x0010
          Use legacy advertising PDUs: ADV_NONCONN_IND
        Min advertising interval: 1280.000 msec (0x0800)
        Max advertising interval: 1280.000 msec (0x0800)
        Channel map: 37, 38, 39 (0x07)
        Own address type: Random (0x01)
        Peer address type: Public (0x00)
        Peer address: 00:00:00:00:00:00 (OUI 00-00-00)
        Filter policy: Allow Scan Request from Any, Allow Connect Request from Any (0x00)
        TX power: 127 dbm (0x7f)
        Primary PHY: LE 1M (0x01)
        Secondary max skip: 0x00
        Secondary PHY: LE 1M (0x01)
        SID: 0x00
        Scan request notifications: Disabled (0x00)
> HCI Event: Command Complete (0x0e) plen 5
      LE Set Extended Advertising Parameters (0x08|0x0036) ncmd 1
        Status: Success (0x00)
        TX power (selected): 7 dbm (0x07)
< HCI Command: LE Set Extended Advertising Enable (0x08|0x0039) plen 6
        Extended advertising: Enabled (0x01)
        Number of sets: 1 (0x01)
        Entry 0
          Handle: 0x00
          Duration: 0 ms (0x00)
          Max ext adv events: 0
> HCI Event: Command Complete (0x0e) plen 4
      LE Set Extended Advertising Enable (0x08|0x0039) ncmd 2
        Status: Success (0x00)
Signed-off-by: NJaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This patch reads the number of advertising sets in the controller
during init and save it in hdev.
Signed-off-by: NJaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This patch defines the extended ADV types and handle it in ADV report.
Signed-off-by: NJaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Use the PHYs selected in Set Phy Configuration management command
while scanning.

< HCI Command: LE Set Extended Scan Parameters (0x08|0x0041) plen 13
        Own address type: Random (0x01)
        Filter policy: Accept all advertisement (0x00)
        PHYs: 0x05
        Entry 0: LE 1M
          Type: Active (0x01)
          Interval: 11.250 msec (0x0012)
          Window: 11.250 msec (0x0012)
        Entry 1: LE Coded
          Type: Active (0x01)
          Interval: 11.250 msec (0x0012)
          Window: 11.250 msec (0x0012)
> HCI Event: Command Complete (0x0e) plen 4
      LE Set Extended Scan Parameters (0x08|0x0041) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Extended Scan Enable (0x08|0x0042) plen 6
        Extended scan: Enabled (0x01)
        Filter duplicates: Enabled (0x01)
        Duration: 0 msec (0x0000)
        Period: 0.00 sec (0x0000)
> HCI Event: Command Complete (0x0e) plen 4
      LE Set Extended Scan Enable (0x08|0x0042) ncmd 2
        Status: Success (0x00)
Signed-off-by: NJaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This also add macros for checking LMP support for different
pkt_types
Signed-off-by: NJaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

1M is mandatory to be supported by LE controllers and the same
would be set in power on. This patch defines hdev flags for
LE PHYs and set 1M to default.
Signed-off-by: NJaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This implements extended LE craete connection and enhanced
LE conn complete event if the controller supports.

For now it is as good as legacy LE connection and event as
no new features in the extended connection is handled.

< HCI Command: LE Extended Create Connection (0x08|0x0043) plen 26
        Filter policy: White list is not used (0x00)
        Own address type: Public (0x00)
        Peer address type: Random (0x01)
        Peer address: DB:7E:2E:1D:85:E8 (Static)
        Initiating PHYs: 0x01
        Entry 0: LE 1M
          Scan interval: 60.000 msec (0x0060)
          Scan window: 60.000 msec (0x0060)
          Min connection interval: 50.00 msec (0x0028)
          Max connection interval: 70.00 msec (0x0038)
          Connection latency: 0 (0x0000)
          Supervision timeout: 420 msec (0x002a)
          Min connection length: 0.000 msec (0x0000)
          Max connection length: 0.000 msec (0x0000)
> HCI Event: Command Status (0x0f) plen 4
      LE Extended Create Connection (0x08|0x0043) ncmd 2
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 31
      LE Enhanced Connection Complete (0x0a)
        Status: Success (0x00)
        Handle: 3585
        Role: Master (0x00)
        Peer address type: Random (0x01)
        Peer address: DB:7E:2E:1D:85:E8 (Static)
        Local resolvable private address: 00:00:00:00:00:00 (Non-Resolvable)
        Peer resolvable private address: 00:00:00:00:00:00 (Non-Resolvable)
        Connection interval: 67.50 msec (0x0036)
        Connection latency: 0 (0x0000)
        Supervision timeout: 420 msec (0x002a)
        Master clock accuracy: 0x00
@ MGMT Event: Device Connected (0x000b) plen 40
        LE Address: DB:7E:2E:1D:85:E8 (Static)
        Flags: 0x00000000
        Data length: 27
        Name (complete): Designer Mouse
        Appearance: Mouse (0x03c2)
        Flags: 0x05
          LE Limited Discoverable Mode
          BR/EDR Not Supported
        16-bit Service UUIDs (complete): 1 entry
          Human Interface Device (0x1812)
Signed-off-by: NJaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This patch enables Extended ADV report event if extended scanning
is supported in the controller and process the same.

The new features are not handled and for now its as good as
legacy ADV report.

> HCI Event: LE Meta Event (0x3e) plen 53
      LE Extended Advertising Report (0x0d)
        Num reports: 1
        Entry 0
          Event type: 0x0013
            Props: 0x0013
              Connectable
              Scannable
              Use legacy advertising PDUs
            Data status: Complete
          Legacy PDU Type: ADV_IND (0x0013)
          Address type: Random (0x01)
          Address: DB:7E:2E:1A:85:E8 (Static)
          Primary PHY: LE 1M
          Secondary PHY: LE 1M
          SID: 0x00
          TX power: 0 dBm
          RSSI: -90 dBm (0xa6)
          Periodic advertising invteral: 0.00 msec (0x0000)
          Direct address type: Public (0x00)
          Direct address: 00:00:00:00:00:00 (OUI 00-00-00)
          Data length: 0x1b
        0f 09 44 65 73 69 67 6e 65 72 20 4d 6f 75 73 65  ..Designer Mouse
        03 19 c2 03 02 01 05 03 03 12 18                 ...........
Signed-off-by: NJaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This implements Set extended scan param and set extended scan enable
commands and use it for start LE scan based on controller support.

The new features added in these commands are setting of new PHY for
scanning and setting of scan duration. Both features are disabled
for now, meaning only 1M PHY is set and scan duration is set to 0
which means that scanning will be done untill scan disable is called.

< HCI Command: LE Set Extended Scan Parameters (0x08|0x0041) plen 8
        Own address type: Random (0x01)
        Filter policy: Accept all advertisement (0x00)
        PHYs: 0x01
        Entry 0: LE 1M
          Type: Active (0x01)
          Interval: 11.250 msec (0x0012)
          Window: 11.250 msec (0x0012)
> HCI Event: Command Complete (0x0e) plen 4
      LE Set Extended Scan Parameters (0x08|0x0041) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Extended Scan Enable (0x08|0x0042) plen 6
        Extended scan: Enabled (0x01)
        Filter duplicates: Enabled (0x01)
        Duration: 0 msec (0x0000)
        Period: 0.00 sec (0x0000)
> HCI Event: Command Complete (0x0e) plen 4
      LE Set Extended Scan Enable (0x08|0x0042) ncmd 2
        Status: Success (0x00)
Signed-off-by: NJaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Check for Resolv list supported by controller. So check the supported
commmand first before issuing this command i.e.,HCI_OP_LE_CLEAR_RESOLV_LIST

Before patch:
< HCI Command: LE Read White List... (0x08|0x000f) plen 0  #55 [hci0] 13.338168
> HCI Event: Command Complete (0x0e) plen 5                #56 [hci0] 13.338842
      LE Read White List Size (0x08|0x000f) ncmd 1
        Status: Success (0x00)
        Size: 25
< HCI Command: LE Clear White List (0x08|0x0010) plen 0    #57 [hci0] 13.339029
> HCI Event: Command Complete (0x0e) plen 4                #58 [hci0] 13.339939
      LE Clear White List (0x08|0x0010) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Read Resolving L.. (0x08|0x002a) plen 0  #59 [hci0] 13.340152
> HCI Event: Command Complete (0x0e) plen 5                #60 [hci0] 13.340952
      LE Read Resolving List Size (0x08|0x002a) ncmd 1
        Status: Success (0x00)
        Size: 25
< HCI Command: LE Read Maximum Dat.. (0x08|0x002f) plen 0  #61 [hci0] 13.341180
> HCI Event: Command Complete (0x0e) plen 12               #62 [hci0] 13.341898
      LE Read Maximum Data Length (0x08|0x002f) ncmd 1
        Status: Success (0x00)
        Max TX octets: 251
        Max TX time: 17040
        Max RX octets: 251
        Max RX time: 17040

After patch:
< HCI Command: LE Read White List... (0x08|0x000f) plen 0  #55 [hci0] 28.919131
> HCI Event: Command Complete (0x0e) plen 5                #56 [hci0] 28.920016
      LE Read White List Size (0x08|0x000f) ncmd 1
        Status: Success (0x00)
        Size: 25
< HCI Command: LE Clear White List (0x08|0x0010) plen 0    #57 [hci0] 28.920164
> HCI Event: Command Complete (0x0e) plen 4                #58 [hci0] 28.920873
      LE Clear White List (0x08|0x0010) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Read Resolving L.. (0x08|0x002a) plen 0  #59 [hci0] 28.921109
> HCI Event: Command Complete (0x0e) plen 5                #60 [hci0] 28.922016
      LE Read Resolving List Size (0x08|0x002a) ncmd 1
        Status: Success (0x00)
        Size: 25
< HCI Command: LE Clear Resolving... (0x08|0x0029) plen 0  #61 [hci0] 28.922166
> HCI Event: Command Complete (0x0e) plen 4                #62 [hci0] 28.922872
      LE Clear Resolving List (0x08|0x0029) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Read Maximum Dat.. (0x08|0x002f) plen 0  #63 [hci0] 28.923117
> HCI Event: Command Complete (0x0e) plen 12               #64 [hci0] 28.924030
      LE Read Maximum Data Length (0x08|0x002f) ncmd 1
        Status: Success (0x00)
        Max TX octets: 251
        Max TX time: 17040
        Max RX octets: 251
        Max RX time: 17040
Signed-off-by: NAnkit Navik <ankit.p.navik@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

When the controller supports the Read LE Resolv List size feature, the
maximum list size are read and now stored.

Before patch:
< HCI Command: LE Read White List... (0x08|0x000f) plen 0  #55 [hci0] 17.979791
> HCI Event: Command Complete (0x0e) plen 5                #56 [hci0] 17.980629
      LE Read White List Size (0x08|0x000f) ncmd 1
        Status: Success (0x00)
        Size: 25
< HCI Command: LE Clear White List (0x08|0x0010) plen 0    #57 [hci0] 17.980786
> HCI Event: Command Complete (0x0e) plen 4                #58 [hci0] 17.981627
      LE Clear White List (0x08|0x0010) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Read Maximum Dat.. (0x08|0x002f) plen 0  #59 [hci0] 17.981786
> HCI Event: Command Complete (0x0e) plen 12               #60 [hci0] 17.982636
      LE Read Maximum Data Length (0x08|0x002f) ncmd 1
        Status: Success (0x00)
        Max TX octets: 251
        Max TX time: 17040
        Max RX octets: 251
        Max RX time: 17040

After patch:
< HCI Command: LE Read White List... (0x08|0x000f) plen 0  #55 [hci0] 13.338168
> HCI Event: Command Complete (0x0e) plen 5                #56 [hci0] 13.338842
      LE Read White List Size (0x08|0x000f) ncmd 1
        Status: Success (0x00)
        Size: 25
< HCI Command: LE Clear White List (0x08|0x0010) plen 0    #57 [hci0] 13.339029
> HCI Event: Command Complete (0x0e) plen 4                #58 [hci0] 13.339939
      LE Clear White List (0x08|0x0010) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Read Resolving L.. (0x08|0x002a) plen 0  #59 [hci0] 13.340152
> HCI Event: Command Complete (0x0e) plen 5                #60 [hci0] 13.340952
      LE Read Resolving List Size (0x08|0x002a) ncmd 1
        Status: Success (0x00)
        Size: 25
< HCI Command: LE Read Maximum Dat.. (0x08|0x002f) plen 0  #61 [hci0] 13.341180
> HCI Event: Command Complete (0x0e) plen 12               #62 [hci0] 13.341898
      LE Read Maximum Data Length (0x08|0x002f) ncmd 1
        Status: Success (0x00)
        Max TX octets: 251
        Max TX time: 17040
        Max RX octets: 251
        Max RX time: 17040
Signed-off-by: NAnkit Navik <ankit.p.navik@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This patch increases the connection timeout for LE connections that are
triggered by the advertising report to 4 seconds.

It has been observed that devices equipped with wifi+bt combo SoC fail
to create a connection with BLE devices due to their coexistence issues.
Increasing this timeout gives them enough time to complete the
connection with success.
Signed-off-by: NKonrad Zapałowicz <konrad.zapalowicz@canonical.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

If the LE Set Default PHY command is supported, the indicate to the
controller that the host has no preferences for transmitter PHY or
receiver PHY selection.

Issuing this command gives the controller a clear indication that other
PHY can be selected if available.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

If the Channel Selection Algorithm #2 feature is supported, then enable
the new LE Channel Selection Algorithm event.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

This command is used to retrieve the current state and basic
information of a controller. It is typically used right after
getting the response to the Read Controller Index List command
or an Index Added event (or its extended counterparts).

When any of the values in the EIR_Data field changes, the event
Extended Controller Information Changed will be used to inform
clients about the updated information.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NMichał Narajowski <michal.narajowski@codecoup.pl>

Instead of hiding everything behind a general managment events flag,
introduce indivdual flags that allow fine control over which events are
send to a given management channel.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

This patch assigns the next free HCI device identifier to Bluetooth
devices based on the Qualcomm Shared Memory channels.
Signed-off-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

If link is disconnected due to Authentication Failure (PIN or Key
Missing status) userspace will be notified about this with proper error
code. Many LE profiles define "PIN or Key Missing" status as indication
of remote lost bond so this allows userspace to take action on this.

@ Device Connected: 88:63:DF:88:0E:83 (1) flags 0x0000
        02 01 1a 05 03 0a 18 0d 18 0b 09 48 65 61 72 74  ...........Heart
        20 52 61 74 65                                    Rate
> HCI Event: Command Status (0x0f) plen 4
      LE Read Remote Used Features (0x08|0x0016) ncmd 1
        Status: Success (0x00)
> ACL Data RX: Handle 3585 flags 0x02 dlen 11
      ATT: Read By Group Type Request (0x10) len 6
        Handle range: 0x0001-0xffff
        Attribute group type: Primary Service (0x2800)
> HCI Event: LE Meta Event (0x3e) plen 12
      LE Read Remote Used Features (0x04)
        Status: Success (0x00)
        Handle: 3585
        Features: 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x00
          LE Encryption
< HCI Command: LE Start Encryption (0x08|0x0019) plen 28
        Handle: 3585
        Random number: 0x0000000000000000
        Encrypted diversifier: 0x0000
        Long term key: 26201cd479a0921b6f949f0b1fa8dc82
> HCI Event: Command Status (0x0f) plen 4
      LE Start Encryption (0x08|0x0019) ncmd 1
        Status: Success (0x00)
> HCI Event: Encryption Change (0x08) plen 4
        Status: PIN or Key Missing (0x06)
        Handle: 3585
        Encryption: Disabled (0x00)
< HCI Command: Disconnect (0x01|0x0006) plen 3
        Handle: 3585
        Reason: Authentication Failure (0x05)
> HCI Event: Command Status (0x0f) plen 4
      Disconnect (0x01|0x0006) ncmd 1
        Status: Success (0x00)
> HCI Event: Disconnect Complete (0x05) plen 4
        Status: Success (0x00)
        Handle: 3585
        Reason: Connection Terminated By Local Host (0x16)
@ Device Disconnected: 88:63:DF:88:0E:83 (1) reason 4

@ Device Connected: C4:43:8F:A3:4D:83 (0) flags 0x0000
        08 09 4e 65 78 75 73 20 35                       ..Nexus 5
> HCI Event: Command Status (0x0f) plen 4
      Authentication Requested (0x01|0x0011) ncmd 1
        Status: Success (0x00)
> HCI Event: Link Key Request (0x17) plen 6
        Address: C4:43:8F:A3:4D:83 (LG Electronics)
< HCI Command: Link Key Request Reply (0x01|0x000b) plen 22
        Address: C4:43:8F:A3:4D:83 (LG Electronics)
        Link key: 080812e4aa97a863d11826f71f65a933
> HCI Event: Command Complete (0x0e) plen 10
      Link Key Request Reply (0x01|0x000b) ncmd 1
        Status: Success (0x00)
        Address: C4:43:8F:A3:4D:83 (LG Electronics)
> HCI Event: Auth Complete (0x06) plen 3
        Status: PIN or Key Missing (0x06)
        Handle: 75
@ Authentication Failed: C4:43:8F:A3:4D:83 (0) status 0x05
< HCI Command: Disconnect (0x01|0x0006) plen 3
        Handle: 75
        Reason: Remote User Terminated Connection (0x13)
> HCI Event: Command Status (0x0f) plen 4
      Disconnect (0x01|0x0006) ncmd 1
        Status: Success (0x00)
> HCI Event: Disconnect Complete (0x05) plen 4
        Status: Success (0x00)
        Handle: 75
        Reason: Connection Terminated By Local Host (0x16)
@ Device Disconnected: C4:43:8F:A3:4D:83 (0) reason 4
Signed-off-by: NSzymon Janc <szymon.janc@codecoup.pl>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

The HCI_BREDR naming is confusing since it actually stands for Primary
Bluetooth Controller. Which is a term that has been used in the latest
standard. However from a legacy point of view there only really have
been Basic Rate (BR) and Enhanced Data Rate (EDR). Recent versions of
Bluetooth introduced Low Energy (LE) and made this terminology a little
bit confused since Dual Mode Controllers include BR/EDR and LE. To
simplify this the name HCI_PRIMARY stands for the Primary Controller
which can be a single mode or dual mode controller.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

Extend the set of possible HCI bus types with SPI and I2C.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Introduce a limited privacy mode indicated by value 0x02 to the mgmt
Set Privacy command.

With value 0x02 the kernel will use privacy mode with a resolvable
private address. In case the controller is bondable and discoverable
the identity address will be used.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This flag just tells us whether hdev->adv_instances is empty or not.
We can equally well use the list_empty() function to get this
information.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

In some cases it may be important to get the exact HCI status rather
than the converted HCI-to-errno value. Add an optional return
parameter to the hci_req_sync() API to allow for this. Since there are
no good HCI translation candidates for cancelation and timeout, use
the "unknown" status code for those cases.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Before the vendor specific setup stage is triggered call back into the
core to trigger an internal notification event. That event is used to
send an index update to the monitor interface. With that specific event
it is possible to update userspace with manufacturer information before
any HCI command has been executed. This is useful for early stage
debugging of vendor specific initialization sequences.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

If the diagnostic settings are not persistent over HCI Reset, then this
quirk can be used to tell the Bluetoth core about it. This will ensure
that the settings are programmed correctly when the controller is
powered up.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

This adds a new debugfs entry for enabling and disabling the vendor
diagnostic mode. It is only exposed for drivers that provide the
set_diag driver callback and actually have an option for vendor
specific diagnostic information.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

Introduce hci_recv_diag function for HCI drivers to allow sending vendor
specific diagnostic messages into the Bluetooth core stack. The messages
are not processed, but they are forwarded to the monitor channel and can
be retrieved by user space diagnostic tools.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

When opening the HCI transport via hdev->open send HCI_DEV_OPEN event
and when closing the HCI transport via hdev->close send HCI_DEV_CLOSE.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

Since Bluetooth 3.0 there's a HCI command available for reading the
encryption key size of an BR/EDR connection. This information is
essential e.g. for generating an LTK using SMP over BR/EDR, so store
it as part of struct hci_conn.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

When establishing a Bluetooth LE connection, read the remote used
features mask to determine which features are supported. This was
not really needed with Bluetooth 4.0, but since Bluetooth 4.1 and
also 4.2 have introduced new optional features, this becomes more
important.

This works the same as with BR/EDR where the connection enters the
BT_CONFIG stage and hci_connect_cfm call is delayed until the remote
features have been retrieved. Only after successfully receiving the
remote features, the connection enters the BT_CONNECTED state.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

Since Bluetooth 4.1 there are two additional values for SSP OOB data,
namely C-256 and R-256. This patch updates the EIR definitions to take
into account both the 192 and 256 bit variants of C and R.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

This patch introduces the HCI_ADVERTISING_INSTANCE setting, which is set
when an at least one advertising instance has been added using the
"Add Advertising" mgmt command. This patch also adds a macro definition
for the EIR_APPEARANCE field type.
Signed-off-by: NArman Uguray <armansito@chromium.org>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Some controllers allow both LE scan and BR/EDR inquiry to run at
the same time, while others allow only one, LE SCAN or BR/EDR
inquiry at given time.

Since this is specific to each controller, add a new quirk setting
that allows drivers to tell the core wether given controller can
do both LE scan and BR/EDR inquiry at same time.
Signed-off-by: NJakub Pawlowski <jpawlowski@google.com>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

When a different user requests a new set of local out-of-band data, then
inform all previous users that the data has been updated. To limit the
scope of users, the updates are limited to previous users. If a user has
never requested out-of-band data, it will also not see the update.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

The LE Secure Connections Confirmation Value and LE Secure Connections
Random Value contants are required for the out-of-band data and so
just define them.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

The OOB data requires to include LE Bluetooth Device Address and LE Role
and so add the type constants for these fields.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

Changes to the global configuration updates like settings, class of
device, name etc. can be received by every user. They are allowed to
read them in the first place so provide the updates via events as
well. Otherwise untrusted users start polling for updates and that
is not a desired behavior.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

Providing a global trusted flag for management control sockets provides
an easy way for identifying sockets and imposing restriction on it. For
now all management sockets are trusted since they require CAP_NET_ADMIN.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

This introduces support for using Extended Index Added and Extended
Index Removed events. These events contain the controller type and
also the hardware bus information from the driver.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>

For sending Index Added, Index Removed, Unconfigured Index Added and
Unconfigured Index Removed managment events the new helper functions
allows taking into account if these events are enabled for a certain
management socket or not.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>