When using BT_LE_ADV_NCONN_NAME then the advertising name will not be
included in the advertising data. This is because the host always puts
the device name in the scan response. But since the scan data was
otherwise empty the advertising type was set to ADV_NONCONN_IND.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fixes#23485
When we create a GATT table dynamically, we also create a hash
identifying this table. This hash can be stored in persistent memory and
we can thus determine after recreating the GATT table whether the
services have changed or not from before the reboot.
When these hashes are identical, it implies that the table has not
changed, wherefore a service changed indication should not be sent to
any bonded clients. The method for achieving this was to remove the
gatt_sc.work entry from the work queue. This work queue entry was to
send an indication to the clients when the table had been allocated.
If the final entry then caused the hashes to match, the indication
would be cancelled.
On unit testing this behaviour in simulation and in practice, we found
that the indication was sent nonetheless, and the issue was located to
be tied to the SERVICE_RANGE_CHANGED flag which is set when the services
are changed and is cleared when the indications are being sent out.
It was the job of the work queue entry to clear this flag, and as the
entry was never serviced, the flag was never cleared, and when
sc_commit() is called at the end of the process, it believes that there
is a new service change pending and therefore starts the job over, thus
creating a redundant indication to the clients.
This commit fixes the issue by clearing the flag when the work entry
is removed due to a hash match. This has been unittested in a live
environment, in a simulation environment, and sanitycheck has been run
on it.
Signed-off-by: Dan Erichsen <daee@demant.com>
The commit e85dd8af5d changed the way the BT_ECC Kconfig option
is enabled, however it got the dependency wrong. The dependency should
only look at BT_SMP_OOB_LEGACY_PAIR_ONLY if BT_SMP was also enable.
This broke e.g. the build of the mesh_demo app for the BBC
micro:bit since the memory consumption jumped up by roughly 2k.
This patch fixes the issue, and in the same go makes the Mesh handling
consistent by also using a conditional default rather than select.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Allow to get local OOB data while advertiser, scanner or whitelist
initiator is active. If direct initiator is active or the advertiser
is using the random address as a random static identity address then
the function will return error.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
When OOB callbacks are present it is possible to achieve authenticated
pairing without having the remote OOB data present. Using OOB with
LE Secure Connection only one side of the pairing procedure is required
to have the OOB data present. If we have given the remote our OOB data
then pairing can proceed.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Added CONFIG_BT_SMP_OOB_LEGACY_PAIR_ONLY option that completely disables
all legacy and SC pairing modes(except for Out of Band) and frees the
memory previously used by these.
Added CONFIG_BT_SMP_DISABLE_LEGACY_JW_PASSKEY option that force rejects
pair requests that lead to legacy Just Works or Passkey pairing.
Signed-off-by: Iván Morales <ivan98ams@gmail.com>
Refactor old state handling in bt_conn_set_state to use switch statement
instead of if statements.
This will give us warning about enum values not covered.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix connection complete event handling when the local RPA is not valid.
This can happen when the controller was not instructed to use an RPA
address, or the local IRK was set to an all zero IRK.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
According to the Zephyr VS HCI specification:
Only Read_Version_Information and Read_Supported_Commands commands are
mandatory.
Check for supported Read Supported Features command before issuing this
command to the controller.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix host resolving the peer identity address in enhanced connection
complete event when the resolving list in the controller is full and
resolution is done in the host.
Move the handling from legacy connection complete into enhanced
connection complete event so that it is done for both connection
complete events.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
If the application has used bt_le_oob_get_local to retrieve the OOB
RPA address and OOB authentication information the central role should
use this RPA address for the next RPA timeout period.
The central role always refreshes the RPA address for the initiator,
this will make the OOB information not usable as the peer cannot
recognize the central role since the RPA address is changed.
Check if the initiator can use the address for the duration of the of
remaining RPA period.
Fix central role using the advertiser identity when setting the private
address. The central role should only use the default identity.
Regressions from:
fbe3285bfa
and
4876a8f39a
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
If the client is change-unware and disconnects the spec requires that
the stack still sends the error out of sync for the next request:
'The ATT_ERROR_RSP PDU is sent only once after the client becomes
change-unaware, unless the client _disconnects_ or the database changes
again before the client becomes change-aware in which case the
ATT_ERROR_RSP PDU shall be sent again'
Fixes#23110
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Fix issue where a new connection with the same peer would use the CCC
from from first connection, despite different local identity.
Since there is no CCC for the new connection yet this caused the
application to think that CCC was enabled but the remote device had not
yet subscribed.
Fix this issue by making the id as an input to the peer address check
function. This will force us to make the check every time. This commit
might also fix similar issues not yes discovered as the ID check was
missing in a few other places as well.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Rename the acl buf context id to index since to avoid confusing it with
the conn object ID parameter. Especially the bt_conn_lookup_id function
was creating confusion.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Avoid the HCI-USB race condition where HCI data and HCI events can be
re-ordered, and pairing information appears to be sent unencrypted.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix issue where an invalid (all zeroes) hash was written to settings
storage on reset. This caused the old value to written to zeroes, before
being written back to it's original value again immediately after.
This causes excessive flash wear.
This happens because the check if (k_delayed_work_remaining) returns the
amount of time until the work will execute. When that time has run out
the time is zero, but the work has not yet been executed.
We then write the invalid hash to flash, and then once the work-item
executes it will write the correct value.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
SC config data is no longer stored within the CCC config itself
therefore it must be cleared separately.
Fixes#22539
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
GATT data shall not be considered conditional to BT_SETTINGS since
the data is stored in RAM it must also be cleared when unpairing.
Fixes#22514
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
smp_pairing_complete does actually clears flags so setting
SMP_FLAG_TIMEOUT must come after that.
Fixes#22786
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Fix bt_gatt_indicate using the wrong attribute pointer when a uuid was
provided as input.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Rename the scan recv callback info struct so that it reflects that it
is part of the scan recv callback. This will make it consistent with
future plans for advertising callbacks.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix the scanner using the advertiser identity instead of the scanners
identity, scanner always use BT_ID_DEFAULT.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Corrected configuration of BT_HCI_RESERVE for the RPMsg HCI driver.
This change fixes the following assert:
[net_buf_simple_headroom(buf) >= len] @ ZEPHYR_BASE/subsys/net/buf.c:881
Signed-off-by: Kamil Piszczek <Kamil.Piszczek@nordicsemi.no>
This can happens if for example the remote peer have the initial credits
set to 0 which would cause bt_l2cap_chan_send to fail instead of just
queue the packets until more credits are given.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
I think people might be reading differences into 'if' and 'depends on'
that aren't there, like maybe 'if' being needed to "hide" a symbol,
while 'depends on' just adds a dependency.
There are no differences between 'if' and 'depends on'. 'if' is just a
shorthand for 'depends on'. They work the same when it comes to creating
implicit menus too.
The way symbols get "hidden" is through their dependencies not being
satisfied ('if'/'depends on' get copied up as a dependency on the
prompt).
Since 'if' and 'depends on' are the same, an 'if' with just a single
symbol in it can be replaced with a 'depends on'. IMO, it's best to
avoid 'if' there as a style choice too, because it confuses people into
thinking there's deep Kconfig magic going on that requires 'if'.
Going for 'depends on' can also remove some nested 'if's, which
generates nicer symbol information and docs, because nested 'if's really
are so simple/dumb that they just add the dependencies from both 'if's
to all symbols within.
Replace a bunch of single-symbol 'if's with 'depends on' to despam the
Kconfig files a bit and make it clearer how things work. Also do some
other minor related dependency refactoring.
The replacement isn't complete. Will fix up the rest later. Splitting it
a bit to make it more manageable.
(Everything above is true for choices, menus, and comments as well.)
Detected by tweaking the Kconfiglib parsing code. It's impossible to
detect after parsing, because 'if' turns into 'depends on'.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
The existing stack_analyze APIs had some problems:
1. Not properly namespaced
2. Accepted the stack object as a parameter, yet the stack object
does not contain the necessary information to get the associated
buffer region, the thread object is needed for this
3. Caused a crash on certain platforms that do not allow inspection
of unused stack space for the currently running thread
4. No user mode access
5. Separately passed in thread name
We deprecate these functions and add a new API
k_thread_stack_space_get() which addresses all of these issues.
A helper API log_stack_usage() also added which resembles
STACK_ANALYZE() in functionality.
Fixes: #17852
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit adds a new option CONFIG_BT_SMP_USB_HCI_CTLR_WORKAROUND
to support USB HCI controllers that sometimes send out-of-order HCI
events and ACL Data due to using different USB endpoints.
Enabling this option will make the master role not require the
encryption-change event to be received before accepting
key-distribution data.
It opens up for a potential vulnerability as the master cannot detect
if the keys are distributed over an encrypted link.
Fixes: #22086
Signed-off-by: François Delawarde <fnde@oticon.com>
Directed advertising timeout was dropped in the host due to
not being able to find a pending connection. Host used the
role parameter from the error event parameters which has
been earlier zero-ed out.
Regression introduced in commit a0349689ff ("Bluetooth:
host: Fix conn object assigned to wrong connection")
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
When starting a non-connectable advertiser and an active scanner is also
using NRPA address then this use-case should be supported. A new
advertiser that is non-connectable should have a fresh NRPA address
every time it is started, so we must refresh the NRPA used by the active
scanner.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
When advertiser is disabled we should update the random address for both
passive and active scanner back to an NRPA. But this command will fail
because the if the scanner is an active scanner, we must disable and
re-enabled the active scanner after setting the random address.
This behavior should not be there when scanner is configured to scan
with identity address.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Document why a privacy-disabled scanner will not notify about directed
advertising reports. This is the default behaviour of the
privacy-disabled scanner. In order to receive the reports the option
BT_SCAN_WITH_IDENTITY must be enabled.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Prevent the advertiser from overwriting the passive scanners identity
address when the scanner has been configured to scan using the identity.
In this case the LE Set Random Address command would not prevent the
address from being overwritten. So instead we explicitly stop it in the
host.
Also fix original code function not working at all since the first
if statement was should had a bad check. Resulting in it always
returning success.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Drop directed advertiser reports when the passive scanner should have
been using the NRPA address. The advertiser has overwritten the NRPA
with it's identity address instead and a peer is sending directed
advertiser packets to it.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
When privacy is disabled by default the scanner still protects it's
identity with the use of NRPA addresses. We should not set the identity
address for the passive scanner unless the Kconfig option to scan with
the identity has been enabled.
This makes passive scanner behave the same way as an active scanner
since none of them will report directed advertising reports towards
the scanners identity.
This also enables the advertiser to switch out the random address which
is needed for the Bluetooth Mesh LPN case.
Fixes#22088.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Similar to pairing_confirm this callback is called each
time a peer requests pairing, but for all types of
pairings, except SSP. The pairing req/rsp information is
passed as a parameter so the application can decide
wheter to accept or reject the pairing.
Fixes: #21036
Signed-off-by: Martin Rieva <mrrv@demant.com>
Fix infinite recursion in host-based bt_rand function. This would call
HCI LE Random Number command, which would in turn call bt_rand, causing
an infinite recursion.
bt_rand -> prng_reseed -> BT_HCI_OP_LE_RAND -> le_rand -> bt_rand
To solve this issue the controller should avoid doing calls into the
host, so all calls to bt_rand in the controller should be replaced with
a call to a controller function.
Fixes#22202
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix LE Create Connection command giving out of range parameters to the
controller, this came back as 0x30 (Out of Range Parameters) status code
on the command from the controller.
This appears to be the min and max CE parameters in the command.
Revert back memset from 137f704064
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix problem where application was notified about a new connection being
established, but no connection has actually been made.
This occurred because the LE Create Connection command failed directly
from the API, in which case the state transition thinks the err is valid
and always notifies the application.
Introduced by:
6c1f52dff7 for bt_conn_create_le
e9eebf0c40 for bt_conn_create_auto_le.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix an issue where a slot in the key pool was considered free when
either the address was cleared or no keys were written in the entry
(enc_size == 0). This caused a problem with simultaneous pairing
attempts that would be assigned the same entry.
This patch makes it so a a slot is considered free even when keys are
not yet present in the entry, and makes sure the address is cleared in
case of pairing failure or timeout so to mark the slot as free.
Signed-off-by: François Delawarde <fnde@oticon.com>
Moves the Mesh AES-CCM module out into a separate module, to make it
accessible from other subsystems. Adds the new CCM API in
include/bluetooth/crypto.h along with the bt_encrypt functions.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Move reset of channel status from after the destroy callback since the
after the destroy callback the memory should be assumed to be released.
Instead clear the channel status when the channel is created in
l2cap_chan_add. This way we don't rely on the memory given being set to
the correct value.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix ATT releasing the att structure back to the memory slab allocator
before the structure is actually ready to be released. The memory slab
allocator will write context data inside the freed slab which is
currently being overwritten by l2cap during channel teardown.
This manifests as an "Unable to allocate ATT context for conn" when
reconnecting with multiple connections.
Since the l2cap channel is embedded inside of the ATT context and l2cap
still has a valid referenc to the l2cap channel we need to release the
ATT context at a later time.
This should be fixed by implementing the channel destroy function and
releasing the channel there.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Add the option to provide the destroy callback to the fixed channels.
This can be used to free the memory for the L2CAP channel context which
is provided by the fixed channel in the accept callback.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
The callback function may modify the att->req and it has to be
called after the att_process. The att_process does not re-check
if att->req is still NULL.
Signed-off-by: Marek Pieta <Marek.Pieta@nordicsemi.no>
The CONFIG_ prefix was missing.
Found with a work-in-progress scripts/kconfig/lint.py check.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Fix assert in net_buf triggered on att encrypt change event.
ASSERTION FAIL [net_buf_simple_headroom(buf) >= len] @
ZEPHYR_BASE/subsys/net/buf.c:881
This happens because when the att request was allocated, it was not
properly initialized and req->retrying was left as true.
This caused the att encrypt change handling to assume an att request
needed to be resent, starting resending with an invalid request and
request buffer.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Refactor use of #ifdef to IS_ENABLED() pattern for handling cancellation
of outgoing connection attempt. Reduce the amount of indentation by
combining outer if-statements.
Move handling of canceled create connection into a helper function.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix advertiser requested to use the identity address while privacy
feature is enabled will change to using RPA address when advertise is
resumed or when RPA timeout occurred.
RPA timeout does not need to run when advertiser is using identity.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Handle initiator role when RPA timeout expires. For direct connect
establishment procedure we make sure the RPA is refreshed when starting
initiator and limit the timeout to the RPA timeout.
For auto establishment procedure we cancel the initiator and restart it
again in the connection complete event that is generated when canceling
an initiator.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Handle starting of advertiser and scanner or initiator when advertiser
is using a different identity than the default identity to generate the
random resolvable address in the controller.
We need to handle this only for the privacy case because the random
address is set in the RPA timeout handler and not from the API.
When privacy is disabled we can return error code from the LE Set Random
Address HCI command instead.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix RPA timeout handling when the scanner is active. An active scanner
must be restarted at RPA timeout otherwise the Set Random Address
command will fail.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Refactor the handling of sending the LE Create Connection command and
for whitelist and direct initiator to use the same host state flag
and common handling of the privacy address.
Also simplify the way we check if the procedure has already been started
when application tries to start it again.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Handle a possible race condition in the host connection state.
Set the conn state of the connection object before command is sent. This
is in case the calling function is not scheduled again before the
connection complete event arrives. In this case find_pending_conn will
not find the connection object.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Starting a background scanner for auto-connection is an API that is only
available when whitelist API is not enabled.
There is currently no way to set this bit when the whitelist API is
enabled so there is not any issues with the current code, but it is
still not correct.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
When receiving a connection complete event but no connection object are
available in the host something strange has happened. In this case
the controller might have a connection that cannot be controlled by the
application. It would then be sensible to disconnect this connection in
the controller.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
The path to include/drivers should not be in the compiler include path
list, only include/. In order to make this possible, always explictly
refer to hci_driver.h via the drivers/bluetooth/ path and not only
bluetooth/.
Fixes#21974.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Guard calls to bt_conn functions in bt_le_adv_start_internal with
IS_ENABLED(CONFIG_BT_PERIPHERAL) to avoid undefined symbols in builds
that do not support that role.
Signed-off-by: Wolfgang Puffitsch <wopu@demant.com>
Fix error in calculation of the minimum discardable buffer size. For
the LE Advertising Report the maximum payload is 31 bytes plus
additional data in the event gives an event size of 41 bytes (given that
num_reports is 1). Since this is a meta event we need to include the
sub-event code, plus the event header of 2 bytes. Total of 44 bytes.
This is a regression from afa9c42d75 where we forgot th 1 byte for the
RSSI that is appended after the data. Easy to miss since it is not part
of the struct.
Fix error in calculation of the num complete buffer size. Here we forgot
to include the 2 byte event header.
This is a regression from 89981b07c8.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Remove re-using connection objects in disconnected state when creating
directed advertiser or establishing a connection as a central using
direct connection procedure.
This makes the API mores consistent it terms of which connection roles
can be started from the disconnected callback.
This also avoids a central connection object being re-used for a
connection as a peripheral instead and vice versa.
When attempting to create a new connection the API would returning
a valid connection object if there is already an existing connection
object.
This existing connection object could be either in the process of
establishing the connection or already connected.
Returning the connection object in this would give the false impression
that the stack has initiated connection procedure, when in fact it just
returned an existing connection object.
The application has the ability to check for existing connection objects
using the bt_conn_lookup_addr_le API.
Add warning plus comment possible scenarios why the a valid connection
object might exists. Most important is to explain why a valid connection
object exists during the disconnected callback.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Reserve conn object for undirected connectable advertiser. This means we
won't have a situation where we start a connectable advertise but will
fail to allocate a connection object for it in the connection complete
event.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Reserve a connection object when starting the auto-initiator using the
controller whitelist.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix bt_conn_create_aute_le returning the wrong error code when bt_init
has not been called yet. This is inconsistent with the rest of the API
functions.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Refactor stopping directed advertiser to disconnect the state object
when calling advertise stop. This follows the same pattern as
bt_conn_disconnect.
Remove returning conn objects in BT_CONN_CONNECT state, this state could
only be an initiator starting a connection in the central role.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Make sure that the auto-conn state is cleared correctly when we might
fail to allocate a new connection object.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix conn object assigned to the wrong controller connection in the
connection complete handler. This could happen when running a
directed advertiser and establishing a connection at the same time to
the same peer.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Add option to set the size of the discardable buffer pool. This saves
memory for the MESH use case where we expect a large number of advertise
reports.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Adds a way to register listeners for incoming scanner packets, in
addition to the callback passed in bt_le_scan_enable.
This allows application modules to add multiple scan packet listeners
without owning the scanner life cycle API, enabling use cases like
beacon scanning alongside Bluetooth Mesh.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Current implementation of application's cfg_write callback only has the
possibility of returning boolean status, which in case of failure only
allows for one error code; BT_ATT_ERR_WRITE_NOT_PERMITTED.
This change makes the application able to add own security check on
characteristic subscription in the cfg_write callback and report a more
relevant error code (e.g. BT_ATT_ERR_AUTHORIZATION).
Signed-off-by: Kim Sekkelund <ksek@oticon.com>
Remove toggling the advertise enable state when the advertiser name has
been updated. Advertise and scan response data should be used by the
controller on subsequent advertising events.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
This further reduce the overhead on each subscription at expense of
having a dedicated array to store subscriptions, the code now maintain
a separate list for each peer which should also scale better with large
number of subscriptions to different peers.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This should reduce the footprint on applications that do a lot of
requests i.e have a lot of subscriptions.
Fixes#21103
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Providing 'tmp', which was never updated, resulted in removeal of
subscriptions from the beginning.
Using the updated 'prev' resolves this.
Signed-off-by: Marco Sterbik <madbadmax00@gmail.com>
Start initiator immediately instead of scanning for device first.
If the host resolving list is used we need to go via scanner to resolve
the address.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Instead of having all (=addr NULL or BT_ADDR_LE_ANY to bt_unpair) as a
special case, iterate over all connected peers and unpair them the
regular way. This means bt_gatt_clear is called too. Doing this way
allows us to remove a lot of (now) unused code as well.
Signed-off-by: Jacob Siverskog <jacob@teenage.engineering>
hdr->length is the length of the payload, it should be
buf->len - sizeof(*hdr) - 1 or buf->len - (sizeof(*hdr) + 1)
Signed-off-by: ZhongYao Luo <LuoZhongYao@gmail.com>
Credits are 2 octects long so an s16_t positive portion can only half to
the theorical maximum number of credits, so instead this uses u16_t and
do a bound check instead of checking for negative values.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
With the changes that introduced a queue k_sem is only used with
K_NO_WAIT which means it is no longer possible to wait/block for credits
so the usage of k_sem is no longer needed and can be safely replaced
with atomic_t just to count the available credits at a given instant.
Fixes#19922
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Make remote features and remote version accesible to the application
through the bt_conn_get_remote_info object. The host will auto initiate
the procedures. If the procedures have not finished with the application
calls bt_conn_get_remote_info then EBUSY will be returned.
The procedures should finish during the first 10 connection intervals.
Signed-off-by: Sverre Storvold <Sverre.Storvold@nordicsemi.no>
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Refactor the handling of the host auto initiated LL procedures.
This makes it easier to add new auto initiated procedures as well as
reduced the maintenance by reducing code duplication.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Always check that the length of the returned command complete
event for a vendor specific command matches the expected length
when the support for Zephyr VS HCI commands are uncertain.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix multiple issues related to the way the host handles
Identity Information related to privacy
1. If the controller provided a public address the IRK
for this identity would be randomly generated but not
stored persistenly.
2. Fix the handling of the above issue which was fixed
for the random address but would initiate settings save
ID on every boot.
3. Fix the host not using the Vendor Specific HCI commands
related to retrieving the Identity Root (IR) from the
controller and using the key diversified function d1
to generate an IRK as specified in the BT Core spec.
Make sure that a Host generated ID is only saved when it is first
generated.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
The test_and_set_bit() should be checking if the flag was *not*
already set, since that's the scenario where we want to call the
status callback.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The ch pointer is the result of a CONTAINER_OF() operation, so
checking it for NULL is pointless. Additionally, there's no place that
calls this function with chan set to NULL.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Make the channel ops struct const since there really isn't anything
there that needs to change at runtime. The only exception is the L2CAP
shell which was playing with the recv callback, however that can be
fixed by introducing a simple bool variable.
With tests/bluetooth/shell this reduces RAM consumption by 112 bytes
while adding only 16 bytes to flash consumption.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This documents the special cases where -EAGAIN is returned which leads
the buffer to be queued.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Now that bt_l2cap_send_cb can fail the buffer state needs to be save
and restored otherwise the data stored on it would be lost.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This introduces BT_L2CAP_STATUS_SHUTDOWN which is used to indicate when
a channel has been shutdown.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This offloads the processing of tx_queue to a work so the callbacks
calling resume don't start sending packets directly which can cause
stack overflow.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Drop packets received while disconnecting since they would most likely
be flushed once peer respond there is no gain in keeping them on a
queue.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This prevents disconnect request packets to not being sent due to lack
of buffers normally caused by flooding or congestion.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
If NET_L2_BT is enabled we need enough acl_in_pool needs to be big
enough to contain a full IP packet since that is no longer processed by
RX thread buffer would be queued to syswq to reassemble the SDU.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
When NET_L2_BT the memory pressure for fragments can be quite high
since that would be transfering IP packets which are considerable big
so this makes our frag_pool to be of the same size as NET_BUF_TX_COUNT.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This enable chaning the function and line number making it easier to
debug where a buffer allocation is blocking.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
When a segment could not be allocated it should be possible to resume
sending it later once previous segments complete, the only exception is
when there is no previous activity and we are unable to alocate even the
very first segment which should indicate to the caller that it would
block since that only happens on syswq the caller might need to defer to
another thread or resubmit the work.
Fixes#20640
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
The whitelist API uses the controller directly through HCI commands.
Bluetooth device must have been initialized before sending HCI commands.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Handle invalid ACL flags in HCI transport.
Only Point to Point is supported over HCI in both directions.
Fix flushable start HCI ACL packets not allowed on LE-U connections
from Host to controller.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
In bt_l2cap_br_chan, rx.cid is the local cid and tx.cid is the
remote cid. According to Core-5.0 Vol3.Part A 4.6-4.7,
l2cap_br_remove_tx_cid should be searched using tx.cid
Signed-off-by: ZhongYao Luo <LuoZhongYao@gmail.com>
If the whitelist already exists in the controller then the controller
should not add the device tot the whitelist and should return success.
In that case the counting of entries in the whitelist in the host will
be wrong.
Remove all whitelist counting in the host, and instead rely on the error
reported by the controller for this.
The controller should return error if the whitelist is full.
The controller should return error if use of whitelist was requested but
the whitelist was empty.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Expose the bt_uuid_to_str function as an API to the application.
This aligns this function with the bt_addr_to_str function call. This
allows the application to use this function without having to enable
the BT_DEBUG option.
Move the in-place bt_uuid_str to internal logging, this is mainly done
due to the limitation in the log_strdup that shouldn't be exposed to the
application.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Bool symbols implicitly default to 'n'.
A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though.
Also replace some
config
prompt "foo"
bool/int
with the more common shorthand
config
bool/int "foo"
See the 'Style recommendations and shorthands' section in
https://docs.zephyrproject.org/latest/guides/kconfig/index.html.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Check that the bluetooth device has in fact been initialized before
continuing with public API calls. This could lead to crashes when using
state that has not yet been initialized.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
When set, the BT_GATT_SUBSCRIBE_FLAG_NO_RESUB flag indicates that the
subscription should not be renewed when reconnecting with the server.
This is useful if the application layer knows that the GATT server
persists subscription information.
Signed-off-by: François Delawarde <fnde@oticon.com>
Added configuration for accepting pairing requests only if both devices
has bonding flag set in order to reject other devices at an early stage,
thus leaving more chance for devices expected to bond.
With the CONFIG_BT_BONDING_REQUIRED flag the device only accept pairing
requests if it has CONFIG_BT_BONMDABLE set and the device requesting
pairing has Bonding_Flags field set to Bonding (0x01) in its AuthReq.
Note: When using bt_set_bondable(false) pairing requests will be
rejected when CONFIG_BT_BONDING_REQUIRED is set.
Signed-off-by: Martin Rieva <mrrv@demant.com>
Fix issues that surfaced when trying out GCC 9.2, official release name
gcc-arm-none-eabi-9-2019-q4-major, both related to invalid pointers in
GATT when declaring UUIDs in if-scope.
1. Fix the discovery callback giving an invalid pointer in the discovery
callback in two instances.
2. Fix gatt_find_type sending invalid data during discovery procedure.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Send connection parameter update request only if it contains the valid
range of values for connection intervals, latency and timeout.
Signed-off-by: Kiran Paramaswaran <kipm@oticon.com>
Fix ATT MTU size of length variables resulting in wrong length values
reported to the user. Communicating with an Android device using an MTU
of 517 resulted in write commands reported as length 2 instead.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Since bt_conn_send_cb can fail to send buffer causing it to unref this
may cause buffer leaks as the caller is not aware of the error assuming
the buffer could be sent.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Processing of data received on dynamic channels is still done via syswq
so the buffer shall not be unrefed when they are queued.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Now that the TX callbacks happen from the system workqueue but fixed
channels get processed from the RX thread there's a risk that the
ordering of these gets messed up. This is particularly bad for ATT
when it's trying to enforce flow control.
To fix the issue store the completed TX packet information in a
per-connection list and process this list before processing any new
packets for the same connection. We still also schedule a workqueue
callback, which will simply do nothing for this list if bt_recv()
already took care of it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This define is not of use anymore since there's a global net_buf user
data Kconfig variable and its definition already guarantees a
sufficient minimum for Bluetooth.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The "sent" tracking doesn't have to be a signed integer. Use a fixed
size so that the consumed size doesn't change between different
architectures. Use a u16_t since bigger sizes are needed and because
this is mapped to an int function return higher up in the stack.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Fixed handling of HCI events in the HCI driver over RPMsg. Now,
the driver makes use of discardable buffer pool when allocating
memory for certain HCI event types (e.g. Advertising Report Event).
Applications that are flooded with Advertising Reports will run
much better after this change (e.g. Mesh applications).
Signed-off-by: Kamil Piszczek <Kamil.Piszczek@nordicsemi.no>
Now that the TX path and TX context (bt_conn_tx) has been redesigned
to free the contexts always in the system workqueue, it means the
system workqueue is the only context where their allocation may also
fail. This is particularly problematic with us having all L2CAP
channels (fixed & CoC alike) deferred to the system workqueue. It is
especially bad for fixed channels where being able to send responses
for SM, L2CAP signaling and ATT is critical to avoid timeouts for the
connection.
This patch moves the processing of all fixed L2CAP channels back to
the RX thread, thereby making it possible (and safe) to block while
waiting for a TX context to become available.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Now that we've removed the TX allocation dependency from the TX thread
we no longer have the need to do special-casing for the system
workqueue when allocating buffers. Instead, we do have to special-case
the system workqueue when allocating TX contexts since the system
workqueue is the only place where they get freed up.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This is a moderate redesign of the pending TX packet handling that
aims to eliminate potential deadlocks between the TX thread and the
system workqueue thread. The main changes are:
- TX context (bt_conn_tx) is allocated during buffer allocation, i.e.
not in the TX thread.
- We don't allocate a TX context unless there's an associated
callback. When there's no callback simple integer counters are used
for tracking.
- The TX thread is no longer responsible for TX callbacks or
scheduling of TX callbacks. Instead, the callbacks get directly
scheduled (k_work_submit) from the RX priority thread.
- CONFIG_BT_CONN_TX_MAX defaults to CONFIG_BT_L2CAP_TX_BUF_COUNT,
and in most cases wont need changing. The value now only indicates
how many pending packets with a callback are possible.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The `node` and `work` members are never used simultaneously.
Additionally k_work already has built-in support for being in a linked
list, however a union makes this change a bit cleaner.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
A recent patch increased struct cmd_data from 8 to 12 bytes, which is
more than the default user data for Bluetooth. We generally don't want
the core stack to require more than 8, so instead of increasing the
requirement, move the data out from the buffer into its own array with
the help of the net_buf_id() API.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Fix race condition in bt_conn_create_le for the state of the scanner in
the Host. This leads to the host issuing a create connection command
without stopping the scanner first. This leads to command disallowed and
failing to establish connection. As well as inconsistent state in the
host which does not allow to stop the running scanner.
The race condition exists because the processing of le_adv_report
handler is done before the thread that called bt_conn_create_le was
woken up to continue after the command_complete event.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix command status for LE Command Param Update HCI command silently
dropped by the host without notifying the application that this command
has failed. This happens because the host does not wait for the command
status event to check the status code returned.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix deadlock in Bluetooth Host. Deadlock could happen from the SMP
callbacks when calling Bluetooth API functions. This is because the
callbacks was given directly from the HCI TX thread. If the calling
API function resulted in trying to send a new HCI command it would post
this HCI command to the HCI TX thread and then wait for command complete
event. This would result in the HCI TX thread blocked waiting for the
itself to process the command.
Example:
Calling bt_conn_le_conn_param_update from pairing_complete callback.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
The HCI transport implemented by an application using the HCI raw
interface may have its own buffer headroom requirements. Currently the
available headroom gets completely determined by the selected HCI
driver. E.g. most of the time this is the native controller driver
which doesn't reserve any headroom at all.
To cover for the needs of HCI raw users, add a new Kconfig variable
for the apps to set to whatever they need. Correspondingly, use the
maximum of the HCI driver and HCI raw headroom requirements for the
buffer pool definitions and the headroom initializations.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Fix GCC9 warning "warning: taking address of packed member of
'struct sc_data' may result in an unaligned pointer value"
Issue is that the on-air structure of sc_data was re-used for the gatt
service changed data.
Added build assert because data is stored in settings, so the structure
should be the same size to be compatible.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
The BT_HCI_TX_STACK_SIZE is carefully calculated from other
options. When those options change, e.g. from a menuconfig update, it
is important that the stack size is re-calculated, but it is not when
there is a prompt.
Therefore, make the prompt conditional such that the previously set
value is only used when it has been explicitly configured to be so.
Now users can still change the value through menuconfig and prj.conf,
by also enabling <option>_WITH_PROMPT, but when the value is
calculated by the defaults, it will continue to be calculated by
defaults instead of inheriting the intial value.
This is AFAIK a novel approach, but testing has shown that it gives
the users the behaviour they want, at the cost of some boilerplate of
course. This pattern can be applied to other options if it proves to
work as intended.
Alternatively one could remove the prompt, but then it would no longer
be possible to override the value through menuconfig.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
The code was not properly taking into account CONFIG_BT_HCI_RESERVE,
which would cause buffer underruns for any HCI driver where this value
defaults to non-zero. Also, all the allocation functions use the same
pool, so we can map them simply to bt_buf_get_rx() instead of
repeating the same code.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
bt_conn_create_pdu_timeout() may return NULL if no buffer
is available, l2cap_chan_create_seg() does not check the
subsequent return value.
Fix possible null pointer dereference in l2cap_chan_create_seg()
and l2cap_chan_le_send().
Signed-off-by: Johann Fischer <j.fischer@phytec.de>
Move functions in order to avoid function prototype and use IS_ENABLED
instead of #if defined where possible.
Signed-off-by: François Delawarde <fnde@oticon.com>
This commits adds a BT_SETTINGS_CCC_LAZY_LOADING option to allow for
CCC settings to be loaded on demand when a peer device connects in
order to reduce memory usage.
Signed-off-by: François Delawarde <fnde@oticon.com>
Maintain Service Changed entry as long as the peer device is subscribed
to SC indications and bonded. This allows to save indication data for
disconnected peers peers when CCC settings are not available (loaded
on-demand).
Signed-off-by: François Delawarde <fnde@oticon.com>
This commit adds a string representation of the
nRF53 variant in bluetooth host.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Disallows all unauthenticated pairing attempts made by the
peer where an unauthenticated bond already exists.
This would enable cases where an attacker could copy the peer device
address to connect and start an unauthenticated pairing procedure
to replace the existing bond. Now in order to create a new bond the old
bond has to be explicitly deleted with bt_unpair.
Added option to disable this rule in order to maintain backwards
compatibility in case this behavior is accepted.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix missing log_strdup when loading bt/name setting. It should be done
on every string which is not in read only memory.
Signed-off-by: François Delawarde <fnde@oticon.com>
Reduces the severity of warnings that happen from normal behavior, or
can't be prevented by the user:
- "No ID address" in hci_core.c: Reduced to an informational warning, as
this will always output with the expected usage. This isn't useful
information for 99.9% of users, and pollutes the output of all samples
using the module.
- "Composition page %u not available" in cfg_srv.c: According to the
Mesh Profile Specification section 4.4.2.2.2, the client is expected
to send page=0xff. Reduced to a debug message.
- "Connectable advertising deferred" in proxy.c: Gets logged every 10
seconds when in a Mesh Proxy connection. This is not useful
information unless the user is debugging the proxy module. Reduced to
a debug message.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Use this short header style in all Kconfig files:
# <description>
# <copyright>
# <license>
...
Also change all <description>s from
# Kconfig[.extension] - Foo-related options
to just
# Foo-related options
It's clear enough that it's about Kconfig.
The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)
git ls-files '*Kconfig*' | \
xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
C++ does not allow chaining of data members when identifying the
designator. Since the generic structure has only one member remove
the designator from its internal initializer.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Clean up space errors and use a consistent style throughout the Kconfig
files. This makes reading the Kconfig files more distraction-free, helps
with grepping, and encourages the same style getting copied around
everywhere (meaning another pass hopefully won't be needed).
Go for the most common style:
- Indent properties with a single tab, including for choices.
Properties on choices work exactly the same syntactically as
properties on symbols, so not sure how the no-indentation thing
happened.
- Indent help texts with a tab followed by two spaces
- Put a space between 'config' and the symbol name, not a tab. This
also helps when grepping for definitions.
- Do '# A comment' instead of '#A comment'
I tweaked Kconfiglib a bit to find most of the stuff.
Some help texts were reflowed to 79 columns with 'gq' in Vim as well,
though not all, because I was afraid I'd accidentally mess up
formatting.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
