Commit Graph

76 Commits

Author SHA1 Message Date
Johan Hedberg
cde6b86657 Bluetooth: Treat unknown L2CAP PDUs as warnings
There are valid cases where we wont have handlers for unknown L2CAP
PDUS. Therefore, convert these logs from error to warnings.

Change-Id: I309b8074f9ef883ce981a4a2fbc6ab8421fda62a
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:58 -05:00
Johan Hedberg
4cabc6902d Bluetooth: Convert unnecessary errors to debug logs
The unhandled opcodes and events are not really errors since we don't
need general handlers for everything. For events its good to have a
warning but for completed commands the cmd_send_sync() API means we
don't need generic handlers for everything.

Change-Id: Ie580189f3e6d69ef10d10e6c6080d5e983c08e8e
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:58 -05:00
Johan Hedberg
8271a58dd4 Bluetooth: Fix missing newline in debug log
Add missing newline character to debug log.

Change-Id: Ic78ae2587d8f48b1af9754f1484350e94039f6f7
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:58 -05:00
Johan Hedberg
3beca82c90 Bluetooth: Add debug config options for all current sub-modules
We want to be able to do fine-grained enabling of debug logs for the
various Bluetooth sub-modules. They all default to 'n' so an app
writer would need to go and enable the specific ones that they're
interested in.

Change-Id: I17105adf133d441dfc811bdd66a00be015813679
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:58 -05:00
Arkadiusz Lichwa
d46de84c03 Bluetooth: Create basic LE scan interface
Adds needed data structures.
Adds basic HCI interface to start/stop LE scan.

Change-Id: I69790b11d191078952ce05da386961c5c55a7172
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
dd7a73a228 Bluetooth: Rename bt_att_info structs and their defines
This replaces _1 and _2 with the respective UUID size they carry.

Change-Id: I254afe335121aef23ed49a5fe0c49520937cc14f
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
bfcd16be8b Bluetooth: Add ATT server initiated skeletons
This adds the remaining ATT PDU definitions.

Change-Id: Id58116e00ba0d3a0ea4b0f94bd262290342e7e9f
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
ed7b333385 Bluetooth: Add ATT Execute Write Request skeleton
This adds the defines for Execute Write PDUs along with initial code to
parse them.

Change-Id: Ifa8229b9f3bf0a60d9abe553263b32397d1ba881
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
0fe5fa9fcf Bluetooth: Add ATT Prepare Write Request skeleton
This adds the defines for Prepare Write PDUs along with initial code to
parse them.

Change-Id: Ia7210dbe4662afbebe742b5b1a7b8f08999adf2a
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
d3acf5f16a Bluetooth: Add ATT Signed Write Command skeleton
This adds the defines for Signed Write Command along with initial code
to parse it.

Change-Id: I2071163c8468a6580d9a9305095187a140c80a43
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
75f56d9e07 Bluetooth: Add ATT Write Command skeleton
This adds the defines for Write Command along with initial code to parse
it.

Change-Id: Ifabcfa8efb54b5135a540718fb60d9a656cd088c
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
9e8c1d1326 Bluetooth: Add ATT Write Request skeleton
This adds the defines for Write PDUs along with initial code to parse
them.

Change-Id: I69d2002b3e6da80037c058f42f543a0ab4765958
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
75aab47603 Bluetooth: Add ATT Read by Group Type Request skeleton
This adds the defines for Read by Group Type PDUs along with initial
code to parse them:

> 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)
< ACL Data TX: Handle 3585 flags 0x00 dlen 9
      ATT: Error Response (0x01) len 4
        Read By Group Type Request (0x10)
        Handle: 0x0001
        Error: Attribute Not Found (0x0a)

Change-Id: Iebc84e7a9c405fa58b7984602d2d27f79d6033a7
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
f00308f0eb Bluetooth: Add ATT Read Mutiple Request skeleton
This adds the defines for Read Multiple PDUs along with initial code to
parse them.

Change-Id: I34f597881e3bdb9325ffbf2bda42b7ae6710c3ae
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
eedc01d6d5 Bluetooth: Add ATT Read Blob Request skeleton
This adds the defines for Read Blob PDUs along with initial code to
parse them.

Change-Id: I5a2a2e2e32bf44d98ce928b3d57ad7f05059a927
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
dfdd657b37 Bluetooth: Add ATT Read Request skeleton
This adds the defines for Read PDUs along with initial code to parse
them.

Change-Id: I3ec54a0bf2394b54bd8b08957533f0826bf4a23a
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Luiz Augusto von Dentz
0d853d64c2 Bluetooth: Add ATT Read by Type Request skeleton
This adds the defines for Read by Type Value PDUs along with initial
code to parse them:

> ACL Data RX: Handle 3585 flags 0x02 dlen 11
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0001-0xffff
        Attribute type: Characteristic (0x2803)
< ACL Data TX: Handle 3585 flags 0x00 dlen 9
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x0001
        Error: Attribute Not Found (0x0a)

Change-Id: I0b4371b8decebf33710a949552a11c80c544b5f8
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:58 -05:00
Johan Hedberg
f73b3b954e Bluetooth: Remove unnecessary reinit of buffers
Now that we no-longer need to set an upper limit of outgoing ACL
buffers (thanks to reintroducing the ACL semaphore) we don't need to
perform a second initialization of the buffers.

Change-Id: Ie59bf7cb0e6915f1c67ca3dfb03244f9b4af94d5
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:58 -05:00
Johan Hedberg
9b1e7a935b Revert "Bluetooth: Rotate outgoing ACL packets via a pending queue"
This reverts commit ce981a0f51f94a3f23c43b947a2ce62a1ef08623.

Now that we're back to using an ACL buffer semaphore the rotation of
outgoing ACL packets via a pending queue is no-longer necessary.

Change-Id: I0da42992bed2abba1544b1a82c31bc71342ecf70
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:57 -05:00
Johan Hedberg
1f5b1b83e0 Bluetooth: Reintroduce ACL buffers semaphore
Since nano_sema is after all able to handle multiple waiters we can
have a cleaner and more efficient implementation by using a single
semaphore for all of the connection tx fibers.

Change-Id: Iafb595ae556a2dd826502cf282b88548cb34f336
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:57 -05:00
Luiz Augusto von Dentz
d51985e4ce Bluetooth: Add ATT Find Information by Type Value Request skeleton
This adds the defines for Find Information by Type Value PDUs along
with initial code to parse them.

Change-Id: I9eaf2df390ca6f78530df7f1ae606b588d1fcb2e
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:57 -05:00
Luiz Augusto von Dentz
b6d35d8281 Bluetooth: Add ATT Find Information Request skeleton
This adds the defines for Find Information PDUs along with initial code
to parse them.

Change-Id: If34533cca4a1a554ca3f119c7639a1167dae0ff2
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:57 -05:00
Andrei Emeltchenko
7a995c0a60 Bluetooth: Export bt_hci_cmd_send_sync() for SMP use
The function bt_hci_cmd_send_sync() would be used in LE SMP code for
using HCI controller for encryption.

Change-Id: I0f8f7963a0bf0597b59f24e6d21b6d1f49072f43
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:57 -05:00
Andrei Emeltchenko
82c913d53c Bluetooth: Add SMP encryption key check
Fixes PTS test case TC_EKS_BI_02_C sending correct failed reply to
wrong key size.
...
> ACL Data RX: Handle 64 flags 0x02 dlen 11
      SMP: Pairing Request (0x01) len 6
        IO capability: KeyboardDisplay (0x04)
        OOB data: Authentication data not present (0x00)
        Authentication requirement: No bonding, No MITM, Legacy, No
Keypresses (0x00)
        Max encryption key size: 6
        Initiator key distribution: <none> (0x00)
        Responder key distribution: <none> (0x00)
< ACL Data TX: Handle 64 flags 0x00 dlen 6
      SMP: Pairing Failed (0x05) len 1
        Reason: Encryption key size (0x06)
...

Change-Id: I1c02cbc03d1aaf6221d7a6ddfd9bc7ab30ca9586
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:57 -05:00
Andrei Emeltchenko
0aadf6ce69 Bluetooth: Add SMP Pairing Confirm skeleton
Change-Id: I484e24f111212acf3e920b4eed56d69e6b94493d
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:57 -05:00
Andrei Emeltchenko
b7dddcff00 Bluetooth: Add SMP Pairing Request skeleton
Add handling of SMP Pairing Request for Pairing Feature Exchange. In
the beginning support Just Works pairing method.

Change-Id: I8aab10683e9f26db4e0e9cb1bb9a8dc8940f0ab0
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:57 -05:00
Andrei Emeltchenko
d780f70339 Bluetooth: trivial empty space fix
Change-Id: I933dae2543f0f0c722736a3b3be79cf5494e9ff6
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:57 -05:00
Andrei Emeltchenko
d135dcf0e5 Bluetooth: Fix using magic number
Instead of magic number use sizeof().

Change-Id: I6c9db3d7a371312d0aab4fd7dc6a9d0c92449afc
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:57 -05:00
Johan Hedberg
5cff2d0b78 Bluetooth: Add debug support for buffers
For debugging buffer access related issues it's convenient to be able
to enable logs and extra checks specifically for the buffer related
code.

Change-Id: Ibb87d344809d2bcada10a22b16a23e6556f4ae79
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:57 -05:00
Andrei Emeltchenko
3750a7eb36 Bluetooth: Implement SMP error response
Add bt_smp_create_pdu() helper and implement send_err_rsp for an
unknown SMP command.

Change-Id: Iaed0811f3323f62aaa56eb531fb383cf15396ef8
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:57 -05:00
Andrei Emeltchenko
69f94f2484 Bluetooth: Add skeleton for SMP handling
Add support for Security Manager Protocol fixed channel. SMP handling
would be done in smp.c.

Change-Id: I26d3d098c6b1c3d03aad958d83dfee09e03add1d
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:57 -05:00
Andrei Emeltchenko
37d3fae356 Bluetooth: Add standard license header to l2cap.c
Add missing header with license.

Change-Id: I754bc0c3b4fd6b2699930fb9e126e788a438168a
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:57 -05:00
Johan Hedberg
90475d78f2 Bluetooth: Use min() macro where possible
There's no need to have custom minimum value evaluation logic when
there's already a convenience macro available.

Change-Id: I91ad50521deb2575100c3480cad516bbf6f4dc2d
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:57 -05:00
Andrei Emeltchenko
2ea4e83446 Bluetooth: Fix ATT code printing
Fix bug printing ATT code in bt_att_recv()

Change-Id: I21fe9cb1272428e618412e98b09e8d786132eef6
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:57 -05:00
Luiz Augusto von Dentz
028edd59ba Bluetooth: Add code to handle BT_ATT_OP_MTU_REQ
Add code to respond to BT_ATT_OP_MTU_REQ with BT_ATT_OP_MTU_RSP
selecting the MTU based on the amount of room bt_buf has:

< ACL Data RX: Handle 39 flags 0x02 dlen 7
      ATT: Exchange MTU Response (0x03) len 2
        Server RX MTU: 65

Change-Id: I47b8179fcee0d6adff5761abc37cfcb1ed636d65
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:56 -05:00
Luiz Augusto von Dentz
7cbb4e6f4b Bluetooth: Add bt_att_create_pdu
Add bt_att_create_pdu which works similarly to bt_l2cap_create_pdu
eliminating some duplicated when generating ATT PDUs.

Change-Id: I30b89effbae887f4032ba1d1e380a763c3556869
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:56 -05:00
Luiz Augusto von Dentz
7ab174d202 Bluetooth: Add len check to bt_l2cap_create_pdu
Check if buffer created is not too short for the len requested and in
case it is print an error and return NULL.

Change-Id: I2361925dfb83fe5e9746445c54e8f39e82b5504d
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:56 -05:00
Luiz Augusto von Dentz
4202d9a7bf Bluetooth: Fix missing parentesis to sizeof
Change-Id: I31e7b8fb3e463371950b538a51676baa77b671ba
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:56 -05:00
Luiz Augusto von Dentz
496147e88c Bluetooth: Make ATT opcode define names consistent
This drops L2CAP term and add OP in its place to make it clear what they
are for.

Change-Id: I50de8b505f64d9a468b2a0c96feb037c233ceac5
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:56 -05:00
Luiz Augusto von Dentz
facd477484 Bluetooth: Add error code defines
These are the error codes that can be used in bt_att_error_rsp.

Change-Id: I5fd3a65ed0b35fd8b21644e3d23c58c7bd57cfec
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:56 -05:00
Johan Hedberg
4dda330440 Bluetooth: Implement ACL fragmentation for outgoing data
If we have a buffer that's larger than the supported ACL MTU we need
to split it into multiple fragments. The first fragment will have
'start' in the flags that are encoded to the connection handle and
subsequent ones will have 'continue' encoded into them.

To not loose track of the original buffer until we have created all of
the fragments we store each buffers in a temporary FIFO and then later
read them back out from there and put them into the tx_queue.

Change-Id: Ice77a79a89286829d624f76df77e0aa719af1490
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:56 -05:00
Johan Hedberg
d14c9c176f Bluetooth: Refactor ACL PDU creation to prepare for fragmentation
There's no point in encoding the ACL header in bt_conn_create_pdu()
since ultimately we might end up having to split the data into
multiple buffers - each with their own ACL header. Instead, move the
header encoding into bt_conn_send() where we can later add the proper
fragmentation support.

Change-Id: I84ac35161fc31bbd0a92391ec920224da69f43e1
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:56 -05:00
Johan Hedberg
a0bb20f4d1 Bluetooth: coding-style: fix one-line branch braces usage
The coding guidelines make an exception to the Linux kernel style
where all branches, even one-liners, should use braces.

Change-Id: I368930af3033eac15f0152a6671909e401d332e6
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:56 -05:00
Luiz Augusto von Dentz
b3cdfed003 Bluetooth: Extend advertising API
Extend bt_start_advertising to make it possible to add any data type
instead of just the name.

Change-Id: I3f2afe1eb64aec51f321f7fd7439e97b3d67374c
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-02-05 20:13:56 -05:00
Johan Hedberg
23eeac2c8d Bluetooth: Process HCI init return parameters synchronously
We only perform the HCI init from a single place, so having generic
command complete handlers is a bit pointless. Furthermore, doing the
commands asynchronously doesn't let us catch all errors that may
occur. This patch converts most of the HCI init sequence to use the
new capabilities of the bt_hci_cmd_send_sync() API to parse the return
parameters synchronously.

Since the command handling automatically converts non-zero statuses to
failures we no-longer need to check for the rp->status values in the
response handlers.

Change-Id: Ibb43312cac596b60ab87d88e37a9ae7ee2588182
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:50 -05:00
Johan Hedberg
fbe3a4634d Bluetooth: Add return parameter support to bt_hci_cmd_send_sync()
Instead of having global command completion handler we can keep the
code more concise by letting bt_hci_cmd_send_sync() give back the
return parameters straight to the caller. This patch extends the
buf->hci.sync variable to not just contain the initial semaphore, but
to have the return parameter bt_buf once the semaphore is given back.

The bt_hci_cmd_send_sync() function receives an extra parameter which
may be NULL if the caller isn't interested in the return parameters.

Change-Id: I41e3e4b1189c4a19d0159947a03fd7052cc98fa9
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:50 -05:00
Johan Hedberg
89a083f888 Bluetooth: Add reference counting for buffers
In certain scenarios we want to keep the buffers around for longer
and avoid the default bt_buf_put() calls from putting them back to the
available buffers queue. This patch adds reference counting for the
buffers, along with a bt_buf_hold() API to increment the reference
count. Now bt_buf_put() will only put the buffer back to the pool if
the reference count hits 0.

Change-Id: I1590c5574e18600939f55e5339a6da3d061f7682
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:50 -05:00
Andrei Emeltchenko
cc90fafaf0 Bluetooth: Add Bluetooth HCI core specific debug support
Configuration option BLUETOOTH_DEBUG_HCI_CORE enables debug support
for Bluetooth HCI core. This allows us to fine tune debug output.

Change-Id: Ibc9a90192b8f3318f9683cef4781d0c3d6ae9f7b
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-02-05 20:13:50 -05:00
Johan Hedberg
d63d0a832d Bluetooth: Make bt_buf_get() wait if necessary & possible
If we are low on buffers we don't necessarily need to have
bt_buf_get() fail if we are in any other scheduling context besides an
ISR. This patch makes the bt_buf_get() function implicitly wait for
more buffers in case none are immediately available. The call to
get_wait() is done as a second step after a non-waiting call so that
we can give a warning log that the stack is running low on available
buffers.

Change-Id: I37430acc337302df23e516c07d38e08b9d61c57c
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:50 -05:00
Johan Hedberg
041c84c3e6 Bluetooth: Introduce dummy data type
We're already sending 'dummy' buffers to wake up the connection
fibers. The problem is that if we provide a real buffer type it may
have unintended consequences. E.g. with BT_ACL_OUT when bt_buf_put()
is called it may trigger an invalid HCI_Host_Num_Completed_Packets
command.

This patch creates a new BT_DUMMY buffer type to avoid this scenario.
The new type is an alias for BT_CMD since the pool where these buffers
come from is not quota-controlled and synced up with the controller.

Change-Id: I42ac235811dc242345853f7858c10bfc43e4f07d
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:13:50 -05:00