It's more intuitive to specify needed MTU sizes instead of raw buffer
sizes. The exact buffer size calculations can instead be made
internally in the code (using the BT_L2CAP_BUF_SIZE helper macro).
Change-Id: I0637340a7d99e04020f57f49ecd8e6dcfcc4bcf4
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
With this split we get better control of the buffer sizes and counts.
We also anyway will need a fragments pool so a simple generic ACL_OUT
pool doesn't make sense anymore. The related Kconfig options for that
have been removed.
Change-Id: I616cf49915a1cc0dc0ddc724e2e182bcbe0c80f6
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This patch adds bt_conn_enc_key_size function which will be used
by application to check encryption keys size of a encrypted connection.
This will be used especialy by GATT applications, because some
attributes to be accessed require encryption with specified
minimum encryption key length.
> ACL Data RX: Handle 64 flags 0x02 dlen 7 [hci0] 708547.536685
ATT: Read Request (0x0a) len 2
Handle: 0x0003
< ACL Data TX: Handle 64 flags 0x00 dlen 9 [hci0] 708547.544302
ATT: Error Response (0x01) len 4
Read Request (0x0a)
Handle: 0x0003
Error: Insufficient Encryption Key Size (0x0c)
Change-Id: Idbc9afde7ec80504898bd8d1e193f3e71a93f3f9
Signed-off-by: Mariusz Skamra <mariusz.skamra@tieto.com>
This simplify the handling quite a bit while the application can still
prevent the buffer to be freed by referencing it if necessary.
Change-Id: I5ed0e96e8d9e349b79ba31ba9568af61181e1065
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Convert the code to use the net_buf API instead of the soon to be
removed bt_buf API.
Change-Id: I89e5ac5a178cf57c0a3f7fee38d1170c25e07c5b
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This make use of bt_uuid_to_str to when printing UUID values, to make it
simpler when it is just going to print so the patch introduces a new
function that does the conversion in place using a static variable.
Change-Id: Idfedf05a5ad201653fff2e01387f046cd5647c83
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This patch cleans up the code a bit. BT_ATT_MAX_LE_MTU defines
MTU that can be used over LE ATT.
Change-Id: Ie433f33f3bcba3275f51e1bea826bb0fd061c45f
Signed-off-by: Mariusz Skamra <mariusz.skamra@tieto.com>
If attribute requires authentication to be read or written,
we check if current security level (should be BT_SECURITY_HIGH
or higher) allows to perform such operations on this attribute.
Change-Id: Ibba542ac96af00722370eba77d6c929cda520fd8
Signed-off-by: Mariusz Skamra <mariusz.skamra@tieto.com>
This refactorer fixed channel data so that the channel itself carries
any extra context necessary.
Change-Id: Iea0f29fb7913a29dccdcbef72d92ec4cf4711bf3
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This split L2CAP API so that server API is available to applications
while the rest of the API is keep internal to the stack.
Change-Id: I031926ff906ce100684fba0947b2e9eb2c8fcaeb
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
To have same logs in att_mtu_req and att_mtu_rsp.
Change-Id: Ic820f989d0928089d5b0a6bce21e5e1c369eb026
Signed-off-by: Mariusz Skamra <mariusz.skamra@tieto.com>
According to the Core Spec 4.2 Vol 3 Part G
The server shall respond with the Server Rx MTU parameter set to the
maximum MTU that this server can receive.
Once the messages have been exchanged, the ATT_MTU shall be set
to the minimum of the Client Rx MTU and Server Rx MTU values.
bt: att_mtu_req (0x0010fd04): Client MTU 672
bt: att_mtu_req (0x0010fd04): Server MTU 65
bt: att_mtu_req (0x0010fd04): Negotiated MTU 65
bt: att_mtu_req (0x0010fd04): Client MTU 42
bt: att_mtu_req (0x0010fd04): Server MTU 65
bt: att_mtu_req (0x0010fd04): Negotiated MTU 42
Change-Id: I13f2f0fc99e99d8188ed15bf7972a9b892612e11
Signed-off-by: Mariusz Skamra <mariusz.skamra@tieto.com>
According to the Core Spec we shall respond to Exchange MTU Request
with MTU parameter set to the maximum MTU that we can receive.
As a Client, we shouldn't send an error if Server's Rx MTU exceeds
517 bytes. Whe should respond with our maximum MTU, because
after negotiation is done, ATT_MTU shall be set to the
minimum of the Client Rx MTU and Server Rx MTU values.
Error will be sent only in case of Rx MTU lower than LE default
ATT_MTU (23).
Change-Id: I9fa4f3fdb9b8129d52fc7b2557129c0894e5d201
Signed-off-by: Mariusz Skamra <mariusz.skamra@tieto.com>
According to Core 4.2 Vol 3 Part F 3.3, Commands have 6th bit
(startting from 0) set in ATT PDU. If the bit is set, no response shall be sent.
Change-Id: I63f7303e1cf2f9479dae129cdf5d31d7aadc739d
Signed-off-by: Mariusz Skamra <mariusz.skamra@tieto.com>
According to Core Specification "An Error Response shall be sent by
the server in response to the Read Multiple Request if insufficient
authentication, insufficient authorization, insufficient encryption
key size is used by the client, or if a read operation is not permitted
on any of the Characteristic Values. The Error Code parameter is set as
specified in the Attribute Protocol."
If any handle used by client is invalid we should return and error.
Change-Id: I5489ce6284531822676a63edf13db23289866102
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>
Change all the Intel and Wind River code license from BSD-3 to Apache 2.
Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b
Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
This allows to not compile SMP support for devices that don't
require pairing. It is required to support SMP channel and reply
with error for any command received even if pairing is not supported.
To handle this cleanly a null smp implementation is used that case.
Change-Id: I656a52dac882839db904eee65f25a4e29ea2d8c2
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>
All required includes should be placed in source file that includes
internal header.
Change-Id: I161e7ebe2e62377ea4cf03f759d48f5900103076
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>
Writes to GATT attribute that has no write permission set, should
return write not permitted (BT_ATT_ERR_WRITE_NOT_PERMITTED)
in check permission routine.
Change-Id: I95f0988e171294cd98b79d3e7b518383ac47567d
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
Move parts of the API that are not usable for applications to
an internal header.
Change-Id: Idbcd3db8acda74375ea9deec2bf3d7eddc8a4ddb
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>
If no attribute with given handle is found in database then invalid
handle error should be set and returned. If attribute is found then
pre-set invalid handle error will be cleared.
Change-Id: I4119877bb72693e18003399f9b6764666f801fe4
Signed-off-by: Grzegorz Kolodziejczyk <grzegorz.kolodziejczyk@tieto.com>
If the remote response with encryption/authentication error attempt to
elevate the security and retry sending the request:
bt: bt_att_recv (0x00112e0c): Received ATT code 0x01 len 5
bt: att_error_rsp (0x00112e0c): request 0x0a handle 0x0018 error 0x0f
bt: security_changed (0x00112e0c): conn 0x0010f5ac level 1
bt: security_changed (0x00112e0c): Retrying
bt: bt_att_recv (0x00112e0c): Received ATT code 0x0b len 1
bt: att_handle_read_rsp (0x00112e0c):
bt: att_read_rsp (0x00112e0c): err 0x00
Change-Id: I9d74fb50385c39b2092357f4fd6912a3eb041442
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Clone request buffer so it can later be used to validate the response.
Change-Id: I306f7b01a9a72a6c4b8e97c30789247b28428365
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
The minimal/start valid handle value is 1.
Change-Id: Ief3be01d0bf76193350b7632aedebc559d368810
Signed-off-by: Grzegorz Kolodziejczyk <grzegorz.kolodziejczyk@tieto.com>
Att data structure passed to read_type callback wasn't set properly
with connection data. This cause parsing att struct set to 0 (casted
in cb, set in att_read_type_rsp). Wrong att data caused parsing wrong
mtu size and whole conn structure.
Change-Id: Ib0aa4b8edca4965afd746e7186a08cfa34e62cf3
Signed-off-by: Grzegorz Kolodziejczyk <grzegorz.kolodziejczyk@tieto.com>
UUID format in 4-byte hex is more readable format than unsigned int.
Change-Id: I5e7fa3771d628705b9991c0064c102313573b8e4
Signed-off-by: Grzegorz Kolodziejczyk <grzegorz.kolodziejczyk@tieto.com>
This makes the code more consistent by always trying to name bt_buf
variables as buf.
Change-Id: I10d54260c5cf2f6aea5300668d5eb68f3da2a8ba
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Include all headers to signature verification process.
Change-Id: I14e152e8529bca380faeb8e9a1be00e4e8d84f9a
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Verify that message is signed correctly using early distributed CSRK
key.
Change-Id: I30b24e90f3503907449c310dd4f59f32e6acca6f
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Add support for signed write with sign parameter for write without
response.
Change-Id: I79008532d88b10d34db1f68898ad4258dd3e761b
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
This can be used to check what is the configured MTU for the given
connection.
Change-Id: I292b06dbe079fbd567cd8d39615cfbc3dad6b2a5
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This leads to unexpected responses where the data can be bigger than
the MTU negotiated.
Change-Id: I395f85ce8b132b3c1727978eed8491ae4745b078
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This adds bt_gatt_subscribe which can used to subscribe to attribute
value notification using CCC handle.
Change-Id: I0983843836b0c2253f750b34b7765dd880cb10a0
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This adds function handler for Handle Value Notification PDU:
> ACL Data RX: Handle 3585 flags 0x02 dlen 8
ATT: Handle Value Notification (0x1b) len 3
Handle: 0x0014
Data: 00
Change-Id: I6faf9c8a3a3f892f889389c08380551268c7202a
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Rename the hci_core.c (previously internal) variable 'dev' to 'bt_dev'
and export it through hci_core.h. This way e.g. bt_conn doesn't need
to store an internal reference to it.
Change-Id: Ic1368c8f20d307c6a13a412f80d8183b56d7a76b
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Modifies ATT transport bt_att_read_mult_req type used in read multiple
request.
Internally now it's been declared as array of handles.
For ensuring validness of minimum PDU length being 4 octets wide for
multiple read request, new define is introduced and used instead of
type sizeof evaluation.
Change-Id: I8b0096497d456c0e6fa6b5b1eb88bb1b8079ae04
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
During allocation ATT pdu buffer there's possibility to precheck
whether length of such buffer doesn't exceeds ATT MTU.
Change-Id: I7f729e4d7f7474d7f33e417ea61a00ceeb7426c5
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
This adds function handler for Find Info Response PDU which call the
request callback:
< ACL Data TX: Handle 3585 flags 0x00 dlen 9
ATT: Find Information Request (0x04) len 4
Handle range: 0x0010-0x0011
> ACL Data RX: Handle 3585 flags 0x02 dlen 14
ATT: Find Information Response (0x05) len 9
Format: UUID-16 (0x01)
Handle: 0x0010
UUID: Characteristic (0x2803)
Handle: 0x0011
UUID: Heart Rate Control Point (0x2a39)
Change-Id: I981e9efe75f6eb032d9468549272c82720cb133d
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This process handle by handle instead of first parsing the full PDU
storing the result in another variable to only then process the handles.
Change-Id: I5b6d5d7db4a78a03b34bc1c7e5217bbcd7f4c96b
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
