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-rw-r--r--net/bluetooth/af_bluetooth.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 88afe25003d8..77fe9b868fee 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -335,11 +335,34 @@ EXPORT_SYMBOL(bt_sock_poll);
335int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) 335int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
336{ 336{
337 struct sock *sk = sock->sk; 337 struct sock *sk = sock->sk;
338 struct sk_buff *skb;
339 long amount;
338 int err; 340 int err;
339 341
340 BT_DBG("sk %p cmd %x arg %lx", sk, cmd, arg); 342 BT_DBG("sk %p cmd %x arg %lx", sk, cmd, arg);
341 343
342 switch (cmd) { 344 switch (cmd) {
345 case TIOCOUTQ:
346 if (sk->sk_state == BT_LISTEN)
347 return -EINVAL;
348
349 amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
350 if (amount < 0)
351 amount = 0;
352 err = put_user(amount, (int __user *) arg);
353 break;
354
355 case TIOCINQ:
356 if (sk->sk_state == BT_LISTEN)
357 return -EINVAL;
358
359 lock_sock(sk);
360 skb = skb_peek(&sk->sk_receive_queue);
361 amount = skb ? skb->len : 0;
362 release_sock(sk);
363 err = put_user(amount, (int __user *) arg);
364 break;
365
343 case SIOCGSTAMP: 366 case SIOCGSTAMP:
344 err = sock_get_timestamp(sk, (struct timeval __user *) arg); 367 err = sock_get_timestamp(sk, (struct timeval __user *) arg);
345 break; 368 break;