kernel/linux.git/include/net/bluetooth/bluetooth.h, branch v6.19.11

Bluetooth: Add function and line information to bt_dbg

2025-09-27T15:37:01+00:00

When enabling debug via CONFIG_BT_FEATURE_DEBUG include function and line information by default otherwise it is hard to make any sense of which function the logs comes from. Signed-off-by: Luiz Augusto von Dentz

Bluetooth: hci_core: Fix using {cis,bis}_capable for current settings

2025-08-15T13:44:49+00:00

{cis,bis}_capable only indicates the controller supports the feature since it doesn't check that LE is enabled so it shall not be used for current setting, instead this introduces {cis,bis}_enabled macros that can be used to indicate that these features are currently enabled. Fixes: 26afbd826ee3 ("Bluetooth: Add initial implementation of CIS connections") Fixes: eca0ae4aea66 ("Bluetooth: Add initial implementation of BIS connections") Fixes: ae7533613133 ("Bluetooth: Check for ISO support in controller") Signed-off-by: Luiz Augusto von Dentz

Bluetooth: ISO: add socket option to report packet seqnum via CMSG

2025-07-23T14:31:19+00:00

User applications need a way to track which ISO interval a given SDU belongs to, to properly detect packet loss. All controllers do not set timestamps, and it's not guaranteed user application receives all packet reports (small socket buffer, or controller doesn't send all reports like Intel AX210 is doing). Add socket option BT_PKT_SEQNUM that enables reporting of received packet ISO sequence number in BT_SCM_PKT_SEQNUM CMSG. Use BT_PKT_SEQNUM == 22 for the socket option, as 21 was used earlier for a removed experimental feature that never got into mainline. Signed-off-by: Pauli Virtanen Signed-off-by: Luiz Augusto von Dentz

Bluetooth: add support for SIOCETHTOOL ETHTOOL_GET_TS_INFO

2025-05-21T14:28:51+00:00

Bluetooth needs some way for user to get supported so_timestamping flags for the different socket types. Use SIOCETHTOOL API for this purpose. As hci_dev is not associated with struct net_device, the existing implementation can't be reused, so we add a small one here. Add support (only) for ETHTOOL_GET_TS_INFO command. The API differs slightly from netdev in that the result depends also on socket type. Signed-off-by: Pauli Virtanen Acked-by: Willem de Bruijn Signed-off-by: Luiz Augusto von Dentz

Bluetooth: ISO: add TX timestamping

2025-03-25T16:50:07+00:00

Add BT_SCM_ERROR socket CMSG type. Support TX timestamping in ISO sockets. Support MSG_ERRQUEUE in ISO recvmsg. If a packet from sendmsg() is fragmented, only the first ACL fragment is timestamped. Signed-off-by: Pauli Virtanen Reviewed-by: Willem de Bruijn Signed-off-by: Luiz Augusto von Dentz

Bluetooth: SCO: Add support for 16 bits transparent voice setting

2024-12-12T14:24:35+00:00

The voice setting is used by sco_connect() or sco_conn_defer_accept() after being set by sco_sock_setsockopt(). The PCM part of the voice setting is used for offload mode through PCM chipset port. This commits add support for mSBC 16 bits offloading, i.e. audio data not transported over HCI. The BCM4349B1 supports 16 bits transparent data on its I2S port. If BT_VOICE_TRANSPARENT is used when accepting a SCO connection, this gives only garbage audio while using BT_VOICE_TRANSPARENT_16BIT gives correct audio. This has been tested with connection to iPhone 14 and Samsung S24. Fixes: ad10b1a48754 ("Bluetooth: Add Bluetooth socket voice option") Signed-off-by: Frédéric Danis Signed-off-by: Luiz Augusto von Dentz

Bluetooth: Improve setsockopt() handling of malformed user input

2024-12-11T16:54:57+00:00

The bt_copy_from_sockptr() return value is being misinterpreted by most users: a non-zero result is mistakenly assumed to represent an error code, but actually indicates the number of bytes that could not be copied. Remove bt_copy_from_sockptr() and adapt callers to use copy_safe_from_sockptr(). For sco_sock_setsockopt() (case BT_CODEC) use copy_struct_from_sockptr() to scrub parts of uninitialized buffer. Opportunistically, rename `len` to `optlen` in hci_sock_setsockopt_old() and hci_sock_setsockopt(). Fixes: 51eda36d33e4 ("Bluetooth: SCO: Fix not validating setsockopt user input") Fixes: a97de7bff13b ("Bluetooth: RFCOMM: Fix not validating setsockopt user input") Fixes: 4f3951242ace ("Bluetooth: L2CAP: Fix not validating setsockopt user input") Fixes: 9e8742cdfc4b ("Bluetooth: ISO: Fix not validating setsockopt user input") Fixes: b2186061d604 ("Bluetooth: hci_sock: Fix not validating setsockopt user input") Reviewed-by: Luiz Augusto von Dentz Reviewed-by: David Wei Signed-off-by: Michal Luczaj Signed-off-by: Luiz Augusto von Dentz

Bluetooth: SCO: Fix UAF on sco_sock_timeout

2024-10-23T14:20:29+00:00

conn->sk maybe have been unlinked/freed while waiting for sco_conn_lock so this checks if the conn->sk is still valid by checking if it part of sco_sk_list. Reported-by: syzbot+4c0d0c4cde787116d465@syzkaller.appspotmail.com Tested-by: syzbot+4c0d0c4cde787116d465@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=4c0d0c4cde787116d465 Fixes: ba316be1b6a0 ("Bluetooth: schedule SCO timeouts with delayed_work") Signed-off-by: Luiz Augusto von Dentz

Bluetooth: Remove hci_request.{c,h}

2024-07-15T14:11:35+00:00

This removes hci_request.{c,h} since it shall no longer be used. Signed-off-by: Luiz Augusto von Dentz

Bluetooth: ISO: Make iso_get_sock_listen generic

2024-05-14T14:51:04+00:00

This makes iso_get_sock_listen more generic, to return matching socket in the state provided as argument. Signed-off-by: Iulia Tanasescu Signed-off-by: Luiz Augusto von Dentz