kernel/include/net/bluetooth/hci_mon.h, branch linux-6.6.y

Bluetooth: hci_sock: Correctly bounds check and pad HCI_MON_NEW_INDEX name

2023-10-14T03:06:33Z

The code pattern of memcpy(dst, src, strlen(src)) is almost always wrong. In this case it is wrong because it leaves memory uninitialized if it is less than sizeof(ni->name), and overflows ni->name when longer. Normally strtomem_pad() could be used here, but since ni->name is a trailing array in struct hci_mon_new_index, compilers that don't support -fstrict-flex-arrays=3 can't tell how large this array is via __builtin_object_size(). Instead, open-code the helper and use sizeof() since it will work correctly. Additionally mark ni->name as __nonstring since it appears to not be a %NUL terminated C string. Cc: Luiz Augusto von Dentz Cc: Edward AD Cc: Marcel Holtmann Cc: Johan Hedberg Cc: "David S. Miller" Cc: Eric Dumazet Cc: Jakub Kicinski Cc: Paolo Abeni Cc: linux-bluetooth@vger.kernel.org Cc: netdev@vger.kernel.org Fixes: 18f547f3fc07 ("Bluetooth: hci_sock: fix slab oob read in create_monitor_event") Link: https://lore.kernel.org/lkml/202310110908.F2639D3276@keescook/ Signed-off-by: Kees Cook Signed-off-by: Luiz Augusto von Dentz

Bluetooth: monitor: Add support for ISO packets

2020-01-15T21:28:51Z

This enables passing ISO packets to the monitor socket. Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Marcel Holtmann

Bluetooth: Add support for sending MGMT commands and events to monitor

2016-09-19T18:19:34Z

This adds support for tracing all management commands and events via the monitor interface. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg

Bluetooth: Add support for sending MGMT open and close to monitor

2016-09-19T18:19:34Z

This sends new notifications to the monitor support whenever a management channel has been opened or closed. This allows tracing of control channels really easily. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg

Bluetooth: Add support for controller specific logging

2015-11-19T16:50:28Z

To enable controller specific logging, the userspace daemon has to have the ability to log per controller. To facilitate this support, provide a dedicated logging channel. Messages in this channel will be included in the monitor queue and with that also forwarded to monitoring tools along with the actual hardware traces. All messages from the logging channel are timestamped and with that allow an easy correlation between userspace messages and hardware events. This will increase the ability to debug problems faster. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg

Bluetooth: Add support for sending system notes to monitor channel

2015-11-19T16:50:28Z

The monitor channel can be used to send generic system notes as text strings for debugging purposes. This adds the system note monitor code and uses it for including kernel and subsystem version into traces. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg

Bluetooth: Add support for vendor specific diagnostic channel

2015-10-08T06:51:13Z

Introduce hci_recv_diag function for HCI drivers to allow sending vendor specific diagnostic messages into the Bluetooth core stack. The messages are not processed, but they are forwarded to the monitor channel and can be retrieved by user space diagnostic tools. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg

Bluetooth: Send index information updates to monitor channel

2015-10-08T06:48:34Z

The Bluetooth public device address might change during controller setup and it makes it a lot simpler for monitoring tools if they just get told what the new address is. In addition include the manufacturer / company information of the controller. That allows for easy vendor specific HCI command and event handling. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg

Bluetooth: Send transport open and close monitor events

2015-10-05T07:30:49Z

When the core starts or shuts down the actual HCI transport, send a new monitor event that indicates that this is happening. These new events correspond to HCI_DEV_OPEN and HCI_DEV_CLOSE events. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg

Bluetooth: Fix coding style in all .h files

2012-03-07T03:04:25Z

Proper align the struct definitions. Signed-off-by: Gustavo F. Padovan