diff options
Diffstat (limited to 'net/bluetooth/sco.c')
-rw-r--r-- | net/bluetooth/sco.c | 74 |
1 files changed, 38 insertions, 36 deletions
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 2d23b29ce00d..a5cc8942fc3f 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -84,7 +84,6 @@ static void sco_sock_timeout(unsigned long arg) sk->sk_state_change(sk); bh_unlock_sock(sk); - sco_sock_kill(sk); sock_put(sk); } @@ -176,7 +175,6 @@ static void sco_conn_del(struct hci_conn *hcon, int err) sco_sock_clear_timer(sk); sco_chan_del(sk, err); bh_unlock_sock(sk); - sco_sock_kill(sk); sock_put(sk); } @@ -211,44 +209,32 @@ static int sco_chan_add(struct sco_conn *conn, struct sock *sk, return err; } -static int sco_connect(struct sock *sk) +static int sco_connect(struct hci_dev *hdev, struct sock *sk) { struct sco_conn *conn; struct hci_conn *hcon; - struct hci_dev *hdev; int err, type; BT_DBG("%pMR -> %pMR", &sco_pi(sk)->src, &sco_pi(sk)->dst); - hdev = hci_get_route(&sco_pi(sk)->dst, &sco_pi(sk)->src, BDADDR_BREDR); - if (!hdev) - return -EHOSTUNREACH; - - hci_dev_lock(hdev); - if (lmp_esco_capable(hdev) && !disable_esco) type = ESCO_LINK; else type = SCO_LINK; if (sco_pi(sk)->setting == BT_VOICE_TRANSPARENT && - (!lmp_transp_capable(hdev) || !lmp_esco_capable(hdev))) { - err = -EOPNOTSUPP; - goto done; - } + (!lmp_transp_capable(hdev) || !lmp_esco_capable(hdev))) + return -EOPNOTSUPP; hcon = hci_connect_sco(hdev, type, &sco_pi(sk)->dst, sco_pi(sk)->setting); - if (IS_ERR(hcon)) { - err = PTR_ERR(hcon); - goto done; - } + if (IS_ERR(hcon)) + return PTR_ERR(hcon); conn = sco_conn_add(hcon); if (!conn) { hci_conn_drop(hcon); - err = -ENOMEM; - goto done; + return -ENOMEM; } /* Update source addr of the socket */ @@ -256,7 +242,7 @@ static int sco_connect(struct sock *sk) err = sco_chan_add(conn, sk, NULL); if (err) - goto done; + return err; if (hcon->state == BT_CONNECTED) { sco_sock_clear_timer(sk); @@ -266,13 +252,11 @@ static int sco_connect(struct sock *sk) sco_sock_set_timer(sk, sk->sk_sndtimeo); } -done: - hci_dev_unlock(hdev); - hci_dev_put(hdev); return err; } -static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len) +static int sco_send_frame(struct sock *sk, void *buf, int len, + unsigned int msg_flags) { struct sco_conn *conn = sco_pi(sk)->conn; struct sk_buff *skb; @@ -284,15 +268,11 @@ static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len) BT_DBG("sk %p len %d", sk, len); - skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); + skb = bt_skb_send_alloc(sk, len, msg_flags & MSG_DONTWAIT, &err); if (!skb) return err; - if (memcpy_from_msg(skb_put(skb, len), msg, len)) { - kfree_skb(skb); - return -EFAULT; - } - + memcpy(skb_put(skb, len), buf, len); hci_send_sco(conn->hcon, skb); return len; @@ -393,8 +373,7 @@ static void sco_sock_cleanup_listen(struct sock *parent) */ static void sco_sock_kill(struct sock *sk) { - if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket || - sock_flag(sk, SOCK_DEAD)) + if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket) return; BT_DBG("sk %p state %d", sk, sk->sk_state); @@ -446,7 +425,6 @@ static void sco_sock_close(struct sock *sk) lock_sock(sk); __sco_sock_close(sk); release_sock(sk); - sco_sock_kill(sk); } static void sco_sock_init(struct sock *sk, struct sock *parent) @@ -554,6 +532,7 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen { struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; struct sock *sk = sock->sk; + struct hci_dev *hdev; int err; BT_DBG("sk %p", sk); @@ -568,12 +547,19 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen if (sk->sk_type != SOCK_SEQPACKET) return -EINVAL; + hdev = hci_get_route(&sa->sco_bdaddr, &sco_pi(sk)->src, BDADDR_BREDR); + if (!hdev) + return -EHOSTUNREACH; + hci_dev_lock(hdev); + lock_sock(sk); /* Set destination address and psm */ bacpy(&sco_pi(sk)->dst, &sa->sco_bdaddr); - err = sco_connect(sk); + err = sco_connect(hdev, sk); + hci_dev_unlock(hdev); + hci_dev_put(hdev); if (err) goto done; @@ -703,6 +689,7 @@ static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) { struct sock *sk = sock->sk; + void *buf; int err; BT_DBG("sock %p, sk %p", sock, sk); @@ -714,14 +701,24 @@ static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg, if (msg->msg_flags & MSG_OOB) return -EOPNOTSUPP; + buf = kmalloc(len, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + if (memcpy_from_msg(buf, msg, len)) { + kfree(buf); + return -EFAULT; + } + lock_sock(sk); if (sk->sk_state == BT_CONNECTED) - err = sco_send_frame(sk, msg, len); + err = sco_send_frame(sk, buf, len, msg->msg_flags); else err = -ENOTCONN; release_sock(sk); + kfree(buf); return err; } @@ -762,6 +759,11 @@ static void sco_conn_defer_accept(struct hci_conn *conn, u16 setting) cp.max_latency = cpu_to_le16(0xffff); cp.retrans_effort = 0xff; break; + default: + /* use CVSD settings as fallback */ + cp.max_latency = cpu_to_le16(0xffff); + cp.retrans_effort = 0xff; + break; } hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, |