Commit graph

42556 commits

Author SHA1 Message Date
Luiz Augusto von Dentz
32c50333b3 Bluetooth: Add implementation of ATT Read and Read Blob Response
Read attribute and generate a proper responses:

< ACL Data TX: Handle 3585 flags 0x00 dlen 6
      ATT: Read Response (0x0b) len 1
        Value: 01

< ACL Data TX: Handle 3585 flags 0x00 dlen 20
      ATT: Read Blob Response (0x0d) len 15
        54 65 73 74 20 50 65 72 69 70 68 65 72 61 6c     Test Peripheral

Change-Id: I5a644fd29ae46fdecdc32c6558591ce7a8d2d42c
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
e6ef8df212 Bluetooth: Add implementation of ATT Find by Type Value Response
Read attributes matching value and handle range generating a proper
response:

< ACL Data TX: Handle 3585 flags 0x00 dlen 9
      ATT: Find By Type Value Response (0x07) len 4
        Handle range: 0x0001-0x0005

Change-Id: I8001afa2b22e804bef3778d0509d17b01a8d597c
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
9a09a5d329 Bluetooth: Add implementation of ATT Read by Type Response
Read attributes matching UUID and handle range generating a proper
response:

< ACL Data TX: Handle 3585 flags 0x00 dlen 20
      ATT: Read By Type Response (0x09) len 15
        Attribute data length: 7
        Attribute data list: 2 entries
        Handle: 0x0002
        Value: 020300002a
        Handle: 0x0004
        Value: 020500012a

Change-Id: Iaf4b0c963765a7769a17144a4d394dce8555c2d3
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
7c14248061 Bluetooth: Add implementation of ATT Read by Group Type Request
Read attributes matching UUID and handle range generating a proper
response:

< ACL Data TX: Handle 3585 flags 0x00 dlen 24
      ATT: Read By Group Type Response (0x11) len 19
        Attribute data length: 6
        Attribute group list: 3 entries
        Handle range: 0x0001-0x0005
        UUID: Generic Access Profile (0x1800)
        Handle range: 0x0006-0x000d
        UUID: Heart Rate (0x180d)
        Handle range: 0x000e-0x0011
        UUID: Battery Service (0x180f)

Change-Id: I1ef2d5b1b0237fc0f89221239686777169cc8883
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
2506aa93b3 Bluetooth: Make use of bt_uuid_cmp to compare UUIDs
This replace the old code that could only compare 16 bits UUID with
bt_uuid_cmp which can expand to 128 bits if types don't match.

Change-Id: I84219d451d8c95baf6f7e42b92629cb106428ccf
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
dd41c3375c Bluetooth: Add bt_gatt_foreach_attr
bt_gatt_foreach_attr iterates over attributes via callback, it will be
used to implement discovery functionality.

Change-Id: Ice66f4b3d0d12b3616986931d5da0fe0f202e533
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
862835d8a6 Bluetooth: Add bt_uuid_cmp
bt_uuid_cmp compares 2 UUIDs returning if they match, if the types are
different it converts both to 128 bit format before performing the
comparison.

Change-Id: Iacf330cc0271a7e5429cbb2f405a7d9ef249a1a3
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
a8f34a1c1e Bluetooth: Add Battery Service to peripheral sample
Add Battery Service along with its characteristics and descriptors
to the database table.

Change-Id: Ifb83ebcb4d6cdafa5df84d643b2e2a69e5a6c1e3
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
1b793139db Bluetooth: Add Heart Rate Service to peripheral sample
Add Heart Rate Service along with its characteristics and descriptors
to the database table.

Change-Id: Ibff52da7352883edccb7c5b903538a81aad2ba55
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
0d505e2045 Bluetooth: Add GAP primary service to peripheral sample
This adds attributes for Generic Access Profile.

Change-Id: I1fe08429f80341e7ba9fc06ef35a6df9b5abbf84
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
de52b09a3f Bluetooth: Add GATT skeleton
This adds initial API and definitions to create a database.

Change-Id: I69d5b3f5fd2f04cc309c2f76a84581673aa54e7b
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Luiz Augusto von Dentz
6d564a9648 Bluetooth: Handle ATT Exchange MTU request
This properly init the MTU to default upon new connection and properly
store the new value in case of Exchange MTU request.

Change-Id: I561f5b1756fd8833244cdd2a986e561c16fc8471
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:04 -05:00
Johan Hedberg
1781490c87 Bluetooth: Improve buffer debug usefulness
The overflow/underflow checks are something that we want to have
whenever debug is enabled in general (and not just for buffers
specifically).

Change-Id: Ib4edd366ae8ce1a80d33155ab1dc8d5a20477909
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:04 -05:00
Johan Hedberg
8d0d247f23 Bluetooth: Add helpers for checking LE address type
For LE Privacy support we'll need to be able to distinguish which
addresses are RPAs and which are Identity Addresses.

Change-Id: Ie244a4d53ffddc435edbd6d69d7ecca205202f18
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:04 -05:00
Johan Hedberg
9b40ec3360 Bluetooth: Introduce dedicated Bluetooth address types
We use addresses in lots of places and with LE we always need to pass
around the type in addition to the address value. Defining dedicated
types for addresses makes the code much simpler.

Change-Id: Ie8b495dce50e3f084685909c19acc5d08e2cca10
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
85fec6dd2c Bluetooth: Increase cmd_rx fiber stack size
When debug is enabled the cmd_rx fiber seems to cause exceptions some
times. Increasing its stack size seems to help.

Change-Id: I8152645f5904758b771ffe73b1112c77c8bfe924
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
da7ea16c6c Bluetooth: coding-style: Fix unnecessary space after typecast
Change-Id: I229df078f205d2fb4e16d02ad7fea3382e4d6287
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
e9c3994b47 Bluetooth: Move LTK/EDiv/Rand generation to key dist stage
Now that bt_hci_send_cmd_sync() is safe to be called from the rx fiber
(used for all HCI events besides Command Complete/Status) we can move
the le_rand() usage to the key distribution stage instead of the
workaround of generating them prematurely.

Change-Id: I8bbc8dc78922a275a0c9982474d60b0693b29af2
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
c825e91e57 Bluetooth: Remove per-connection RX fiber
Now that there's the split of Command Complete/Status events from all
other RX data we don't anymore need dedicated per-connection RX
fibers. Remove these fibers and their associated FIFO and use
bt_l2cap_recv() directly from bt_conn_recv().

Change-Id: Ib9740e76200cfa40d46ee234f9693dcb7e8387fd
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
d8e9e71acd Bluetooth: Add dedicated stack for Command Complete/Status events
These events are special since they release any blocking
bt_hci_cmd_send_sync() calls. In order to be able to use the send_sync
API from HCI Event handlers without deadlocking having the Command
Complete/Status events processed through a dedicated fiber is
essential.

Change-Id: Id5c597d618bf326a8efb7c9ca2500af60a502d77
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
a4ecff8dad Bluetooth: Rename cmd_stack/fiber/queue to cmd_tx_stack/fiber/queue
To prepare for a dedicated Command Complete/Status processing fiber,
add 'tx' to the existing names to differentiate from the 'rx' in the
upcoming names.

Change-Id: I59e0ba34502e4a2341396f81bfb5829c296b35a5
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
b3c29b6f9d Bluetooth: Fix buffer leak in hci_rx_fiber
Unknown buffers are likely a bug, but we should still put them back to
the buffer pool. Also, there's no reason to stop running the fiber.

Change-Id: I413f9ff115689da9b1487bc622a8d26693cfd6d0
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
d1d2810c8d Bluetooth: Fix coding style of switch statement
Change-Id: Ib53a639a48929344609857447c577b9be764fbb0
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Luiz Augusto von Dentz
0b21762db2 Bluetooth: Add enum for UUID types
UUID types don't come from any spec so it is safe to have a enum which
can be changed whenever we want.

Change-Id: I7549f3a487191eeb847a239936f882ff88f4d345
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:03 -05:00
Luiz Augusto von Dentz
06383eae4f Bluetooth: Fix beacon scan data
Length of "Test beacon" is 11 + 1 of type that should be 12 not 16.
In addition to that make the data variable static since they are only
used locally.

Change-Id: I2d7fb16cf7d383dafc9b083da6cd63a4d9be21c0
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
943f0896a8 Bluetooth: Add deadlock protection for bt_hci_cmd_send_sync
The bt_hci_cmd_send_sync function will deadlock if called from within
the rx fiber. Add prevention for this when debug is enabled by
verifying that the calling context is not the rx fiber.

Change-Id: Ib94bd5c10185165d017fe0aeafbce46d503ad705
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
06098aa73e Bluetooth: Remove CONFIG_BLUETOOTH_DEBUG_HCI_CORE from samples
There's no point in enabling BLUETOOTH_DEBUG_HCI_CORE for the samples
as the user/developer is unlikely to be interested in this specific
sub-module of the Bluetooth stack. The samples already have the
BLUETOOTH_DEBUG enabled, so leave it up to the user/developer to
decide if they want to add specific sub-module debug options.

Change-Id: I327086464561667a2462db0aab00d0ffcdd40d4c
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
544cb1433c Bluetooth: SMP: Add Encryption Key distribution support
Add support for distributing our LTK to the remote side. Normally we
would generate the needed random bytes when the connection becomes
encrypted, however using bt_hci_cmd_send_sync() from a HCI event
handler (which the encryption_change is) is not possible and will
deadlock (because it needs to wait for a HCI command of its own to
complete). Instead, pre-generate the LTK as part of the SMP context
when we receive the SMP Random PDU from the remote.

Change-Id: Id9cc34b7ddfd1804626cf8bdc81c25aa8cc7943c
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
4c11bb5fdb Bluetooth: SMP: Fix authentication requirement in response
We shouldn't send any unknown bits or bits that we do not support.

Change-Id: Ia1c1cfd1e70ca879fd070b5fbcceef3b66ba8237
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
20b2d70a56 Bluetooth: SMP: Add more protocol defines
Add more defines needed to do key distribution and using correct
values for the authentication requirement.

Change-Id: I674c143d26ee31e9473c50c181c2947a305025fd
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
6140bd04fe Bluetooth: Store full LTK information
We also need to store the EDiv & Rand values to be able to do correct
look-up of LTKs.

Change-Id: If6dbfc7569d18a4c8597a401deccad3ef8cb51ad
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
2469d04ce2 Bluetooth: SMP: Update le_rand() to support arbitrary sizes
We'll soon need to generate other amounts of random bytes than 16.
Update the le_rand() helper to generate any amount of random bytes.

Change-Id: I9295e6e3d79b0577c7bced31604a0fa45f1a9424
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
764dd444e5 Bluetooth: Fix coding style (missing braces)
Change-Id: If96f4ce601499345e8e29143a03742594cac35af
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Luiz Augusto von Dentz
7f6a66c04e Bluetooth: Move UUID code to its own file
UUID defines, etc, will be needed by multiple files including GATT.

Change-Id: I855d3934242f54a8b5bf31652a4f8b9dfb63ef06
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
5c9421ff32 Bluetooth: Move SMP & ATT contexts to protocol specific files
Now that we have the connected/disconnected callbacks available for
L2CAP channels we can use these to associate the bt_conn with a
respective protocol-specific context.

Change-Id: I7c4d9a54f73ae7029a73372a1b0c93d473b28881
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
7650dabdab Bluetooth: Add L2CAP callbacks for connection state changes
Add callbacks to notify L2CAP channels of connections, disconnections
and changes in the encryption state.

Change-Id: I66f86f20f551f01459abdbec6ccd214992828470
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
0b099acb4c Bluetooth: Add registration mechanism for L2CAP channels
We'll either way need various callbacks as well as get rid of the
channel-specific contexts in conn.h, so add a dynamic way of
registering fixed channels. The LE signaling channel is handled in the
same way as any other channel.

Change-Id: I5f8c1af3c8e3d107212becf507a5a6485838e081
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
62c82f0c97 Bluetooth: Add support for Encrypt Change HCI event
There will be various scenarios where we need to know what the current
encryption mode for a connection is.

Change-Id: I9836ffe51bfb6ebfc09497c7c716bd13a4064305
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
066a0e103c Bluetooth: Fix handling of connect/disconnect_complete events
The handles do not need ACL data-like decoding and the handlers should
be no-op for any non-zero status.

Change-Id: I40006ef7e5d01e8841ae0bebeda87755b2a32938
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
8aec59f010 Bluetooth: Use more appropriate printf format specifiers
Now that the logging macros use printf we can use more appropriate
format specifiers for various values.

Change-Id: I01025133b6a075f3478957a60163a1574cd85df7
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
0821341d3f Bluetooth: Add support for responding to LTK requests
Add an event handler for LTK requests that looks up the LTK using the
new bt_keys API.

Change-Id: Ifc4e5f96e84026d7e8c68eacb64154dc0a9c72b3
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
3075658253 Bluetooth: SMP: Store STK using new bt_keys API
Take advantage of the new bt_keys API to store the generated STK.

Change-Id: I7dc20c8581e55a98f2f4f804d3a01bc636364ad0
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
619bf02559 Bluetooth: Add runtime storage & API for pairing related keys
Add runtime storage of pairing related keys, along with a config
option to control how many pairings are supported.

Change-Id: Ib5177d2b6fbb0d2d458b539a3f1095c1dce135ff
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
7ce57dd762 Bluetooth: SMP: Implement key generation function s1()
The s1() crypto function is used to generate keys for SMP Legacy
Pairing.

Change-Id: I839cb8210d8babe64551f8d958c97d0addd459b4
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
5190c37967 Bluetooth: Make max supported connection count configurable
Add a kernel config option to specify how many simultaneous
connections can be supported.

Change-Id: I963aacb7cece3436ecd5049683a19a350224a156
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
63552b1485 Bluetooth: Add error logs for bt_init() failures
These may help debug early initialization issues.

Change-Id: I18a8043b2da46ec50f03fedfce46e48d9b41b373
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Johan Hedberg
6e20c3b838 Bluetooth: Move all logs behind CONFIG_BLUETOOTH_DEBUG
The BLUETOOTH_DEBUG config option bumps the stack sizes to cope with
printf requirements. Since all the logs use printf now they should
only be available with the bigger stack sizes to avoid surprises.
There are still basically two levels of log enabling where
BLUETOOTH_DEBUG enables the ERR/WARN/INFO everywhere and the
BLUETOOTH_DEBUG_* enables BT_DBG for a specific subset of the stack.

Change-Id: Ie8d64e47f44485efde32b40cd5bb34389c8e39da
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:03 -05:00
Andrei Emeltchenko
fa77083bf4 Bluetooth: Fix printf specifier for debug
printf() '%x' expects type 'unsigned int' for 'x', but parameter has
pointer type.

Change-Id: Id2d365a32b2e3e711359bd56741370d8167db868
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:14:02 -05:00
Andrei Emeltchenko
9b9e9e66c5 Bluetooth: trivial: Fix coding style
Change-Id: Ie0bdad384ea353733bb37acd5422269cc49ea08b
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:14:02 -05:00
Johan Hedberg
44e67698a6 Bluetooth: Move L2CAP header encoding to sending stage
Encoding the L2CAP header when allocating the buffer means that we
must know the final size up-front. This is not always possible, so
move the header encoding to bt_l2cap_send() and only have the
bt_l2cap_create_pdu() function reserve enough headroom without
actually encoding anything.

Change-Id: Ic1c3b6b72c265cd0db4e835790fa915e0acd9388
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:02 -05:00