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Bluetooth: SCO: add TX timestamping

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Support TX timestamping in SCO sockets.
Not available for hdevs without SCO_FLOWCTL.

Support MSG_ERRQUEUE in SCO recvmsg.

Signed-off-by: Pauli Virtanen <pav@iki.fi>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Pauli Virtanen
2025-03-18 21:06:46 +02:00
committed by Luiz Augusto von Dentz
parent 11770f41b8
commit bdbcd52871
1 changed files with 17 additions and 2 deletions
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19
net/bluetooth/sco.c
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@@ -378,7 +378,8 @@ unlock:
return err;
}
static int sco_send_frame(struct sock *sk, struct sk_buff *skb)
static int sco_send_frame(struct sock *sk, struct sk_buff *skb,
const struct sockcm_cookie *sockc)
{
struct sco_conn *conn = sco_pi(sk)->conn;
int len = skb->len;
@@ -389,6 +390,7 @@ static int sco_send_frame(struct sock *sk, struct sk_buff *skb)
BT_DBG("sk %p len %d", sk, len);
hci_setup_tx_timestamp(skb, 1, sockc);
hci_send_sco(conn->hcon, skb);
return len;
@@ -784,6 +786,7 @@ static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg,
{
struct sock *sk = sock->sk;
struct sk_buff *skb;
struct sockcm_cookie sockc;
int err;
BT_DBG("sock %p, sk %p", sock, sk);
@@ -795,6 +798,14 @@ static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg,
if (msg->msg_flags & MSG_OOB)
return -EOPNOTSUPP;
hci_sockcm_init(&sockc, sk);
if (msg->msg_controllen) {
err = sock_cmsg_send(sk, msg, &sockc);
if (err)
return err;
}
skb = bt_skb_sendmsg(sk, msg, len, len, 0, 0);
if (IS_ERR(skb))
return PTR_ERR(skb);
@@ -802,7 +813,7 @@ static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg,
lock_sock(sk);
if (sk->sk_state == BT_CONNECTED)
err = sco_send_frame(sk, skb);
err = sco_send_frame(sk, skb, &sockc);
else
err = -ENOTCONN;
@@ -868,6 +879,10 @@ static int sco_sock_recvmsg(struct socket *sock, struct msghdr *msg,
struct sock *sk = sock->sk;
struct sco_pinfo *pi = sco_pi(sk);
if (unlikely(flags & MSG_ERRQUEUE))
return sock_recv_errqueue(sk, msg, len, SOL_BLUETOOTH,
BT_SCM_ERROR);
lock_sock(sk);
if (sk->sk_state == BT_CONNECT2 &&