We should clear the flag if the adv instance removed due to receiving
this error status is the last one we have.
Signed-off-by: Archie Pusaka <apusaka@chromium.org>
Reviewed-by: Miao-chen Chou <mcchou@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This event is received when the controller stops advertising,
specifically for these three reasons:
(a) Connection is successfully created (success).
(b) Timeout is reached (error).
(c) Number of advertising events is reached (error).
(*) This event is NOT generated when the host stops the advertisement.
Refer to the BT spec ver 5.3 vol 4 part E sec 7.7.65.18. Note that the
section was revised from BT spec ver 5.0 vol 2 part E sec 7.7.65.18
which was ambiguous about (*).
Some chips (e.g. RTL8822CE) send this event when the host stops the
advertisement with status = HCI_ERROR_CANCELLED_BY_HOST (due to (*)
above). This is treated as an error and the advertisement will be
removed and userspace will be informed via MGMT event.
On suspend, we are supposed to temporarily disable advertisements,
and continue advertising on resume. However, due to the behavior
above, the advertisements are removed instead.
This patch returns early if HCI_ERROR_CANCELLED_BY_HOST is received.
Btmon snippet of the unexpected behavior:
@ MGMT Command: Remove Advertising (0x003f) plen 1
Instance: 1
< HCI Command: LE Set Extended Advertising Enable (0x08|0x0039) plen 6
Extended advertising: Disabled (0x00)
Number of sets: 1 (0x01)
Entry 0
Handle: 0x01
Duration: 0 ms (0x00)
Max ext adv events: 0
> HCI Event: LE Meta Event (0x3e) plen 6
LE Advertising Set Terminated (0x12)
Status: Operation Cancelled by Host (0x44)
Handle: 1
Connection handle: 0
Number of completed extended advertising events: 5
> HCI Event: Command Complete (0x0e) plen 4
LE Set Extended Advertising Enable (0x08|0x0039) ncmd 2
Status: Success (0x00)
Signed-off-by: Archie Pusaka <apusaka@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This work is no longer necessary since all the code using it has been
converted to use hci_passive_scan/hci_passive_scan_sync.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This makes MGMT_OP_SET_CONNEABLE use hci_cmd_sync_queue instead of
use a dedicated connetable_update work.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This makes MGMT_OP_SET_DISCOVERABLE use hci_cmd_sync_queue instead of
use a dedicated discoverable_update work.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Coverity Scan report:
[...]
*** CID 1493985: Uninitialized variables (UNINIT)
/net/bluetooth/hci_event.c: 4535 in hci_sync_conn_complete_evt()
4529
4530 /* Notify only in case of SCO over HCI transport data path which
4531 * is zero and non-zero value shall be non-HCI transport data path
4532 */
4533 if (conn->codec.data_path == 0) {
4534 if (hdev->notify)
>>> CID 1493985: Uninitialized variables (UNINIT)
>>> Using uninitialized value "notify_evt" when calling "*hdev->notify".
4535 hdev->notify(hdev, notify_evt);
4536 }
4537
4538 hci_connect_cfm(conn, ev->status);
4539 if (ev->status)
4540 hci_conn_del(conn);
[...]
Although only btusb uses air_mode, and he only handles HCI_NOTIFY_ENABLE_SCO_CVSD
and HCI_NOTIFY_ENABLE_SCO_TRANSP, there is still a very small chance that
ev->air_mode is not equal to 0x2 and 0x3, but notify_evt is initialized to
HCI_NOTIFY_ENABLE_SCO_CVSD or HCI_NOTIFY_ENABLE_SCO_TRANSP. the context is
maybe not correct.
Let us directly use the required function instead of re-initializing it,
so as to restore the original logic and make the code more correct.
Addresses-Coverity: ("Uninitialized variables")
Fixes: f4f9fa0c07 ("Bluetooth: Allow usb to auto-suspend when SCO use non-HCI transport")
Suggested-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Syzbot reported slab-out-of-bounds read in hci_le_adv_report_evt(). The
problem was in missing validaion check.
We should check if data is not malicious and we can read next data block.
If we won't check ptr validness, code can read a way beyond skb->end and
it can cause problems, of course.
Fixes: e95beb4141 ("Bluetooth: hci_le_adv_report_evt code refactoring")
Reported-and-tested-by: syzbot+e3fcb9c4f3c2a931dc40@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds the support of the AOSP Bluetooth Quality Report
(BQR) events.
Multiple vendors have supported the AOSP Bluetooth Quality Report.
When a Bluetooth controller supports the capability, it can enable
the aosp capability through hci_set_aosp_capable. Then hci_core will
set up the hdev->aosp_set_quality_report callback through aosp_do_open
if the controller responds to support the quality report capability.
Note that Intel also supports a distinct telemetry quality report
specification. Intel sets up the hdev->set_quality_report callback
in the btusb driver module.
Reviewed-by: Miao-chen Chou <mcchou@chromium.org>
Signed-off-by: Joseph Hwang <josephsih@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds the struct of reading AOSP vendor capabilities.
New capabilities are added incrementally. Note that the
version_supported octets will be used to determine whether a
capability has been defined for the version.
Signed-off-by: Joseph Hwang <josephsih@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10bbffa3e8 attempted to fix the use of rotation duration as
advertising duration but it didn't change the if condition which still
uses the duration instead of the timeout.
Fixes: 10bbffa3e8 ("Bluetooth: Fix using advertising instance duration as timeout")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This fixes the following warnings:
>> net/bluetooth/hci_sync.c:1333:5: warning: no previous prototype for
'hci_scan_disable_sync' [-Wmissing-prototypes]
1333 | int hci_scan_disable_sync(struct hci_dev *hdev, bool rpa_le_conn)
| ^~~~~~~~~~~~~~~~~~~~~
>> net/bluetooth/hci_sync.c:1762:5: warning: no previous prototype for
'hci_passive_scan_sync' [-Wmissing-prototypes]
1762 | int hci_passive_scan_sync(struct hci_dev *hdev)
| ^~~~~~~~~~~~~~~~~~~~~
Fixes: e8907f7654 ("Bluetooth: hci_sync: Make use of hci_cmd_sync_queue set 3")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This makes hci_suspend_notifier use the hci_*_sync which can be
executed synchronously which is allowed in the suspend_notifier and
simplifies a lot of the handling since the status of each command can
be checked inline so no other work need to be scheduled thus can be
performed without using of a state machine.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This moves the init stages to use the hci_sync infra and in addition
to that have the stages as function tables so it is easier to change
the command sequence.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
mgmt-tester paths:
Set SSP on - Success 2
Set Device ID - SSP off and Power on
Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
mgmt-test paths:
Set powered on - Privacy and Advertising
Set Advertising on - Success 2
Set Advertising on - Appearance 1
Set Advertising on - Local name 1
Set Advertising on - Name + Appear 1
Add Advertising - Success 4
Add Advertising - Success 5
Add Ext Advertising - Success 4
Add Ext Advertising - Success 5
Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Uses existing *_sync functions
mgmt-test paths:
Read Local OOB Ext Data - Invalid index
Read Local OOB Ext Data - Legacy pairing
Read Local OOB Ext Data - Success SSP
Read Local OOB Ext Data - Success SC
Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
New functions:
hci_read_local_oob_data_sync
This function requires all of the data from the cmd cmplt event
to be passed up to the caller via the skb.
mgmt-tester paths:
Read Local OOB Data - Not powered
Read Local OOB Data - Legacy pairing
Read Local OOB Data - Success SSP
Read Local OOB Data - Success SC
Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Synchronous version of MGMT_OP_GET_CONN_INFO
Implements:
hci_read_rssi_sync
hci_read_tx_power_sync
Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This creates a synchronized Write Fast Connectable call and attaches it
to the MGMT_OP_SET_FAST_CONNECTABLE management opcode.
Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This make use of hci_cmd_sync_queue when MGMT_SET_POWERED is used so all
commands are run within hdev->cmd_sync_work instead of
hdev->power_on_work and hdev->power_off_work.
In addition to that the power on sequence now takes into account if
local IRK needs to be programmed in the resolving list.
Tested with:
tools/mgmt-tester -s "Set powered"
Test Summary
------------
Set powered on - Success Passed
Set powered on - Invalid parameters 1 Passed
Set powered on - Invalid parameters 2 Passed
Set powered on - Invalid parameters 3 Passed
Set powered on - Invalid index Passed
Set powered on - Privacy and Advertising Passed
Set powered off - Success Passed
Set powered off - Class of Device Passed
Set powered off - Invalid parameters 1 Passed
Set powered off - Invalid parameters 2 Passed
Set powered off - Invalid parameters 3 Passed
Total: 11, Passed: 11 (100.0%), Failed: 0, Not Run: 0
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This replaces the use of hci_update_background_scan with
hci_update_passive_scan which runs from cmd_work_sync and deal properly
with resolving list when LL privacy is enabled.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The usage of __hci_cmd_sync() within the hdev->setup() callback allows for
a nice and simple serialized execution of HCI commands. More importantly
it allows for result processing before issueing the next command.
With the current usage of hci_req_run() it is possible to batch up
commands and execute them, but it is impossible to react to their
results or errors.
This is an attempt to generalize the hdev->setup() handling and provide
a simple way of running multiple HCI commands from a single function
context.
There are multiple struct work that are decdicated to certain tasks
already used right now. It is add a lot of bloat to hci_dev struct and
extra handling code. So it might be possible to put all of these behind
a common HCI command infrastructure and just execute the HCI commands
from the same work context in a serialized fashion.
For example updating the white list and resolving list can be done now
without having to know the list size ahead of time. Also preparing for
suspend or resume shouldn't require a state machine anymore. There are
other tasks that should be simplified as well.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
If we remove one instance of adv using Set Extended Adv Enable, there
is a possibility of issue occurs when processing the Command Complete
event. Especially, the adv_info might not be found since we already
remove it in hci_req_clear_adv_instance() -> hci_remove_adv_instance().
If that's the case, we will mistakenly proceed to remove all adv
instances instead of just one single instance.
This patch fixes the issue by checking the content of the HCI command
instead of checking whether the adv_info is found.
Signed-off-by: Archie Pusaka <apusaka@chromium.org>
Reviewed-by: Sonny Sasaka <sonnysasaka@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it go through appropriate helpers.
Reviewed-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it go through appropriate helpers.
Convert bluetooth from memcpy(... ETH_ADDR) to eth_hw_addr_set():
@@
expression dev, np;
@@
- memcpy(dev->dev_addr, np, ETH_ALEN)
+ eth_hw_addr_set(dev, np)
Reviewed-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
I got a kernel BUG report when doing fault injection test:
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:45!
...
RIP: 0010:__list_del_entry_valid.cold+0x12/0x4d
...
Call Trace:
proto_unregister+0x83/0x220
cmtp_cleanup_sockets+0x37/0x40 [cmtp]
cmtp_exit+0xe/0x1f [cmtp]
do_syscall_64+0x35/0xb0
entry_SYSCALL_64_after_hwframe+0x44/0xae
If cmtp_init_sockets() in cmtp_init() fails, cmtp_init() still returns
success. This will cause a kernel bug when accessing uncreated ctmp
related data when the module exits.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Fault injection test reported memory leak of hci device as follows:
unreferenced object 0xffff88800b858000 (size 8192):
comm "kworker/0:2", pid 167, jiffies 4294955747 (age 557.148s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 ad 4e ad de .............N..
backtrace:
[<0000000070eb1059>] kmem_cache_alloc_trace mm/slub.c:3208
[<00000000015eb521>] hci_alloc_dev_priv include/linux/slab.h:591
[<00000000dcfc1e21>] bpa10x_probe include/net/bluetooth/hci_core.h:1240
[<000000005d3028c7>] usb_probe_interface drivers/usb/core/driver.c:397
[<00000000cbac9243>] really_probe drivers/base/dd.c:517
[<0000000024cab3f0>] __driver_probe_device drivers/base/dd.c:751
[<00000000202135cb>] driver_probe_device drivers/base/dd.c:782
[<000000000761f2bc>] __device_attach_driver drivers/base/dd.c:899
[<00000000f7d63134>] bus_for_each_drv drivers/base/bus.c:427
[<00000000c9551f0b>] __device_attach drivers/base/dd.c:971
[<000000007f79bd16>] bus_probe_device drivers/base/bus.c:487
[<000000007bb8b95a>] device_add drivers/base/core.c:3364
[<000000009564d9ea>] usb_set_configuration drivers/usb/core/message.c:2171
[<00000000e4657087>] usb_generic_driver_probe drivers/usb/core/generic.c:239
[<0000000071ede518>] usb_probe_device drivers/usb/core/driver.c:294
[<00000000cbac9243>] really_probe drivers/base/dd.c:517
hci_alloc_dev() do not init the device's flag. And hci_free_dev()
using put_device() to free the memory allocated for this device,
but it calls just put_device(dev) only in case of HCI_UNREGISTER
flag is set, So any error handing before hci_register_dev() success
will cause memory leak.
To avoid this behaviour we can using kfree() to release dev before
hci_register_dev() success.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Fault injection test report debugfs entry leak as follows:
debugfs: Directory 'hci0' with parent 'bluetooth' already present!
When register_pm_notifier() failed in hci_register_dev(), the debugfs
create by debugfs_create_dir() do not removed in the error handing path.
Add the remove debugfs code to fix it.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
In order to group sockets being connected using L2CAP_MODE_EXT_FLOWCTL
the pid is used but sk_peer_pid was not being initialized as it is
currently only done for af_unix.
Fixes: b48596d1dc ("Bluetooth: L2CAP: Add get_peer_pid callback")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The receive path may take the socket right before hci_sock_release(),
but it may enqueue the packets to the socket queues after the call to
skb_queue_purge(), therefore the socket can be destroyed without clear
its queues completely.
Moving these skb_queue_purge() to the hci_sock_destruct() will fix this
issue, because nothing is referencing the socket at this point.
Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com>
Reported-by: syzbot+4c4ffd1e1094dae61035@syzkaller.appspotmail.com
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch fixes the controller index in the Experimental Features
Changed event for the offload_codec and the quality_report features to
use the actual hdev index instead of non-controller index(0xffff) so the
client can receive the event and know which controller the event is for.
Fixes: ad93315183 ("Bluetooth: Add offload feature under experimental flag")
Fixes: ae7d925b5c ("Bluetooth: Support the quality report events")
Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Read codec capabilities only if HCI_READ_LOCAL_CODEC_CAPABILITIES
command is supported. If capablities are not supported, then
cache codec data without caps.
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
When SUSPEND_DISCONNECTING bit is set that means Disconnect is pending
but the code was evaluating if the list is empty before calling
hci_conn_del which does the actual cleanup and remove the connection
from the list thus the bit is never cleared causing the suspend
procedure to always timeout when there are connections to be
disconnected:
Suspend/Resume - Success 5 (Pairing - Legacy) - waiting done
Set the system into Suspend via force_suspend
= mgmt-tester: Suspend/Resume - Success 5 (Pairing -.. 17:03:13.200458
= mgmt-tester: Set the system into Suspend via force_suspend 17:03:13.205812
< HCI Command: Write Scan E.. (0x03|0x001a) plen 1 #122 [hci0] 17:03:13.213561
Scan enable: No Scans (0x00)
> HCI Event: Command Complete (0x0e) plen 4 #123 [hci0] 17:03:13.214710
Write Scan Enable (0x03|0x001a) ncmd 1
Status: Success (0x00)
< HCI Command: Disconnect (0x01|0x0006) plen 3 #124 [hci0] 17:03:13.215830
Handle: 42
Reason: Remote Device Terminated due to Power Off (0x15)
> HCI Event: Command Status (0x0f) plen 4 #125 [hci0] 17:03:13.216602
Disconnect (0x01|0x0006) ncmd 1
Status: Success (0x00)
> HCI Event: Disconnect Complete (0x05) plen 4 #126 [hci0] 17:03:13.217342
Status: Success (0x00)
Handle: 42
Reason: Remote Device Terminated due to Power Off (0x15)
@ MGMT Event: Device Disconn.. (0x000c) plen 8 {0x0002} [hci0] 17:03:13.217688
BR/EDR Address: 00:AA:01:01:00:00 (Intel Corporation)
Reason: Connection terminated by local host for suspend (0x05)
@ MGMT Event: Device Disconn.. (0x000c) plen 8 {0x0001} [hci0] 17:03:13.217688
BR/EDR Address: 00:AA:01:01:00:00 (Intel Corporation)
Reason: Connection terminated by local host for suspend (0x05)
Suspend/Resume - Success 5 (Pairing - Legacy) - test timed out
= mgmt-tester: Suspend/Resume - Success 5 (Pairing -.. 17:03:13.939317
Suspend/Resume - Success 5 (Pairing - Legacy) - teardown
= mgmt-tester: Suspend/Resume - Success 5 (Pairing -.. 17:03:13.947267
[ 13.284291] Bluetooth: hci0: Timed out waiting for suspend events
[ 13.287324] Bluetooth: hci0: Suspend timeout bit: 6
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
- Add support for MediaTek MT7922 and MT7921
- Enable support for AOSP extention in Qualcomm WCN399x and Realtek
8822C/8852A.
- Add initial support for link quality and audio/codec offload.
- Rework of sockets sendmsg to avoid locking issues.
- Add vhci suspend/resume emulation.
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Merge tag 'for-net-next-2021-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Luiz Augusto von Dentz says:
====================
bluetooth-next pull request for net-next:
- Add support for MediaTek MT7922 and MT7921
- Enable support for AOSP extention in Qualcomm WCN399x and Realtek
8822C/8852A.
- Add initial support for link quality and audio/codec offload.
- Rework of sockets sendmsg to avoid locking issues.
- Add vhci suspend/resume emulation.
====================
Link: https://lore.kernel.org/r/20211001230850.3635543-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
prevent_wake logic is backward since what it is really checking is
if the device may wakeup the system or not, not that it will prevent
the to be awaken.
Also looking on how other subsystems have the entry as power/wakeup
this also renames the force_prevent_wake to force_wakeup in vhci driver.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This makes use of bt_skb_sendmsg instead of allocating a different
buffer to be used with memcpy_from_msg which cause one extra copy.
Tested-by: Tedd Ho-Jeong An <tedd.an@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
