1 files changed, 60 insertions, 0 deletions

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index df8cba0c9cc4..aaf89c41113a 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -69,6 +69,7 @@ struct sco_pinfo {
 	__u32		flags;
 	__u16		setting;
 	__u8		cmsg_mask;
+	struct bt_codec codec;
 	struct sco_conn	*conn;
 };
 
@@ -441,6 +442,7 @@ static void __sco_sock_close(struct sock *sk)
 		sock_set_flag(sk, SOCK_ZAPPED);
 		break;
 	}
+
 }
 
 /* Must be called on unlocked socket. */
@@ -501,6 +503,10 @@ static struct sock *sco_sock_alloc(struct net *net, struct socket *sock,
 	sk->sk_state    = BT_OPEN;
 
 	sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT;
+	sco_pi(sk)->codec.id = BT_CODEC_CVSD;
+	sco_pi(sk)->codec.cid = 0xffff;
+	sco_pi(sk)->codec.vid = 0xffff;
+	sco_pi(sk)->codec.data_path = 0x00;
 
 	bt_sock_link(&sco_sk_list, sk);
 	return sk;
@@ -833,6 +839,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 	int len, err = 0;
 	struct bt_voice voice;
 	u32 opt;
+	struct bt_codecs *codecs;
+	struct hci_dev *hdev;
+	__u8 buffer[255];
 
 	BT_DBG("sk %p", sk);
 
@@ -894,6 +903,57 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 			sco_pi(sk)->cmsg_mask &= SCO_CMSG_PKT_STATUS;
 		break;
 
+	case BT_CODEC:
+		if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND &&
+		    sk->sk_state != BT_CONNECT2) {
+			err = -EINVAL;
+			break;
+		}
+
+		hdev = hci_get_route(&sco_pi(sk)->dst, &sco_pi(sk)->src,
+				     BDADDR_BREDR);
+		if (!hdev) {
+			err = -EBADFD;
+			break;
+		}
+
+		if (!hci_dev_test_flag(hdev, HCI_OFFLOAD_CODECS_ENABLED)) {
+			hci_dev_put(hdev);
+			err = -EOPNOTSUPP;
+			break;
+		}
+
+		if (!hdev->get_data_path_id) {
+			hci_dev_put(hdev);
+			err = -EOPNOTSUPP;
+			break;
+		}
+
+		if (optlen < sizeof(struct bt_codecs) ||
+		    optlen > sizeof(buffer)) {
+			hci_dev_put(hdev);
+			err = -EINVAL;
+			break;
+		}
+
+		if (copy_from_sockptr(buffer, optval, optlen)) {
+			hci_dev_put(hdev);
+			err = -EFAULT;
+			break;
+		}
+
+		codecs = (void *)buffer;
+
+		if (codecs->num_codecs > 1) {
+			hci_dev_put(hdev);
+			err = -EINVAL;
+			break;
+		}
+
+		sco_pi(sk)->codec = codecs->codecs[0];
+		hci_dev_put(hdev);
+		break;
+
 	default:
 		err = -ENOPROTOOPT;
 		break;