This fixes warnings related to the use of nano_work and
nano_delayed_work in L2CAP layer.
Note that k_delayed_work takes a timeout in miliseconds rather than in
ticks thus the timeouts values changes.
Change-Id: I1e3bd7857248865e34a313dd42862af5f4e3805b
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
So far bt_security_t has completely missed out on security level 0,
i.e. its actual values have been one lower than in the core
specification.
To properly introduce for the new level (which is only applicable for
BR/EDR) add proper tracking for each channel and server, and make the
channels inherit their required level from the respective server.
Change-Id: I9a2384d883017125c2c117880aa6e0ade30520e4
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The header was always supposed to be Apache 2 and not 3-Clause BSD.
Change-Id: I82f319edfc7a76323b2b409fadc90e270d7f1cad
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Layers (modules) above HCI like L2CAP need to know status of applied
security procedure when it's triggered on existing connection. It gives
them possibility to make action in layer specific context on
post-security-procedure conditions.
Change-Id: Ia10078469847b29bb7eb3b1fb376ac305dd0b0fc
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
This makes all flags used for BR/EDR L2CAP be stored in single place.
Connection oriented flags and signaling flags are now sharing same
atomic.
Change-Id: If01b29009f9c60ed529338122992b9b5e31f883a
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>
Adds functionality to do connect to remote PSM. Connecting to remote
PSM other than SDP when both support SSP involves raising security
to at least BT_SECURITY_MEDIUM before any CoC traffic on L2CAP layer.
If connection response is send back with status 'pending' it means
remote doing additional job, so restarts RTX timer. If the command
timer is fired detach the apps channel from connection and make it
ready for reuse.
Change-Id: I81f57bc2f5738754f872ce52cb25027db6db5ccf
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
There's a need to add timeout support for control commands on BR/EDR
transport. So far RTX timer feature has application to control protocols
only on LE. Here 'rtx_work' member is moved to common L2CAP context to
safe memory footprint and prepare L2CAP layer to handle RTX timeout
in BR/EDR context.
Change-Id: I9938268a5c4e5dd1f980bb3ec8697d0209c24065
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
Implements CoC channel disconnect API initiated from local and handles
response to the disconnect request from remote.
Change-Id: I25f2495404cd405dc83ad56269e4897e53d602e6
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
Applies on L2CAP channel object security requirement member and
implements on BR/EDR transport basic security cases during incoming
CoC connection request. Since channel security requirements can involve
sending 2 separate connection responses with proper results depending on
context path, there's a need to store L2CAP signaling identifier set in
original connection request to be restored later to help match proper
response context.
Change-Id: Ibac9a5d2443f2975637e1bd15f61afcad53f843b
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
Moves 'ident' member so far included in bt_l2cap_le_chan context only
to common bt_l2cap_chan context. The change is driven by sharing ability
to store/restore 'ident' on both transports and makes use of it only if
CoC is configured. For default configuration there's channel addition
helper to be used internally by dedicated macros managing channel
objects enlisted in connection tracker list.
The common member is used in matching outstanding connection responses
on LE and to prepare a ground for BR/EDR transport context when
there'll be a need to match response to original incoming connection
request after in-between security changes that can happen.
Change-Id: I1a4cad7cd53c74774604a0e9794607081a8b6e80
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
Improves placement of channel states value description in Bluetooth API
documentation by moving to separate line proper comment describing
the value meaning.
Change-Id: Ib111884bd4a52bdb023b872598a852fc441fefe5
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
When each side involved in getting configured L2CAP CoC channel on
BR/EDR transport aggrees on configuration contract regarding in/out MTU,
set proper context flags to start prepare finalize config process.
Change-Id: Ic821ea3b961442be758ad4e2d91b2d812e2a54b5
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
Adds CoC channel's context to hold channel setup state and SM routine
that evaluates validness of transitions.
At the beginning DISCONNECTED, CONNECT and CONFIG states are added and
used by CoC setup on BR/EDR transport.
Change-Id: I1bbd16ec2f59ea961791786b78f22834d6f4b4d8
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
The code for adding and removing channels is very similar for LE and
BR/EDR so it can be unified and just leave the CID allocation up for the
bearer implementation.
Change-Id: Icf4c66262c4e973039381ebd1861fad4d46e1535
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This adds initial timeout handling as described in the spec:
BLUETOOTH SPECIFICATION Version 4.2 [Vol 3, Part A] page 126:
'The value of this timer is implementation-dependent but the minimum
initial value is 1 second and the maximum initial value is 60
seconds. One RTX timer shall exist for each outstanding signaling
request, including each Echo Request. The timer disappears on the
final expiration, when the response is received, or the physical
link is lost.'
Note: As for the actual interval used they are based on the values used
in Linux but in case of disconnect the minimum of 1 seconds was used
to follow the text above.
Change-Id: Ib98899c3ff07334955aee9c8fb53b1b89ba7bf31
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
If ACL is disconnected with channels still active the code should call
l2cap_chan_del to clean it up properly.
Change-Id: Iffa9345a9697ac80c1f2295578c7161ffeb44420
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Replaces all occurences of LE_CHAN() macro with new name
BT_L2CAP_LE_CHAN() and makes it public.
Change-Id: I426b17b0214f7ab4b69e5febbdca1917f22e7487
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
These prevent the documentation from being included in the generated
doxygen output.
Change-Id: Iffe38c15055b8283d4b9f16b1c830c9f269ba6e4
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Refactors L2CAP core data structures and modifies functions that uses them.
Now we can have separate L2CAP feature channel objects for LE and BR/EDR
transport. This's also a ground for make L2CAP CoC API to be common
for both transports.
Change-Id: Ic1197b0e3c4f505764b23fb9c7eb27123a44a675
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
This header defines BT_BUF_USER_DATA_MIN which is needed for declaring
buffers passed to BT stack and already includes <net/buf.h>.
Change-Id: I6b556be9fb3939a55af0b73d49fc59152d6d6a53
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>
Enables API to register PSM server on BREDR transport.
Adds l2cap_br.c file responsible for BREDR specific functionality to
build path based on Kconfig selection.
Change-Id: I92823b0207ab0da96bfb813353de9f95fa5dd0f4
Origin: Original
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
Indenting away the function pointer name from the return type is not
consistent with the rest of the code base.
Change-Id: I8bd69ccfd201fa3c9eedb13caeff920774d1defd
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This documents more in detail the behavior of the API, what callbacks are
involved and when they are called, etc.
Change-Id: I62994ed09a9e8b3f14dc3f8c792469a93aeefabc
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Document callbacks included in structs since they are also public API.
Change-Id: I8eda02b12172c54e8076208d8ea5ae246c650a3c
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
bt_l2cap_chan_send does actually return the number of bytes sent.
Change-Id: I9dd79da992577f2e1e8d30d42eeb0c398e48ff33
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Adds extern "C" { } blocks to header files so that they can be
safely used by C++ source files.
Change-Id: Ia4db0c36a5dac5d3de351184a297d2af0df64532
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
If the SDU length is bigger than the amount data received in the first
packet it means it will be segmented in 2 or more packet until the SDU
is completed.
Since the MTU required by the upper layer could be much bigger than the
ACL buffer the code now request a buffer to reassemble the SDU.
Change-Id: I286d16e185f59a8128c4357dddebdc13145dfe31
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This use struct nano_sem to control the credits so when sending if the
credits hit zero it now waits more credits to continue instead of
failing.
Change-Id: I2da4692eaa16828f74a1df4346583258bb4cf8f0
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This adds bt_l2cap_chan_send which can be used to send data to
dynamic channels resulting in the following trace:
< ACL Data TX: Handle 3585 flags 0x01 dlen 17
Channel: 64 len 24 [PSM 128 mode 0] {chan 5}
a0 02 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
ff ff ff ff ff ff ff ff ........
Change-Id: I753e301b1125ef21a345ab96470f15bc53a4869a
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This adds bt_l2cap_chan_disconnect which can be used to disconnect
dynamic channels resulting in the following trace:
< ACL Data TX: Handle 3585 flags 0x00 dlen 12
LE L2CAP: Disconnection Request (0x06) ident 2 len 4
Destination CID: 64
Source CID: 64
> ACL Data RX: Handle 3585 flags 0x02 dlen 12
LE L2CAP: Disconnection Response (0x07) ident 2 len 4
Destination CID: 64
Source CID: 64
Change-Id: I77ec29c8879a330b7f73e217621436045fa5163e
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This adds bt_l2cap_chan_connect which can be used to connect dynamic
channels resulting in the following trace:
< ACL Data TX: Handle 3585 flags 0x00 dlen 18
LE L2CAP: LE Connection Request (0x14) ident 1 len 10
PSM: 128 (0x0080)
Source CID: 64
MTU: 63
MPS: 65
Credits: 4
> ACL Data RX: Handle 3585 flags 0x02 dlen 18
LE L2CAP: LE Connection Response (0x15) ident 1 len 10
Destination CID: 64
MTU: 672
MPS: 230
Credits: 10
Result: Connection successful (0x0000)
Change-Id: I73b2bd62fdca4a3ffa35577f0b66c2e6bb0083cd
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This doesn't need to be exposed in the public API.
Change-Id: Ib6d4336684620bd1e03d128765f289b5ebd744ef
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>
Fix format of bt_l2cap_server_register documentation.
Change-Id: I22322a235bb1d6b6752bfe13ce8e305481649125
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
There's no need to maintain a separate module for this anymore.
Subsequent patches will have further simplifications thanks to this
being now handled in a single c-file.
Change-Id: I4510c9f72b121e1e5fd19eeb8b5d5ddf2f4bfffe
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Convert the code to use the net_buf API instead of the soon to be
removed bt_buf API.
Change-Id: I5f376caeb861ac8b815a0a2e235bd188b9e8185b
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This adds an option to enable L2CAP dynamic channel support, fixed
channels are not affected by it.
Change-Id: If36bece46b7b94142ea1ac976b878d1b5ae6a578
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>
