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authorPhilippe Langlais <philippe.langlais@stericsson.com>2011-12-06 12:00:36 +0100
committerPhilippe Langlais <philippe.langlais@stericsson.com>2011-12-06 12:00:36 +0100
commitee91337bc3e1773b52040c99fa657d0580242521 (patch)
tree53cfcff3a652fa8c155b0f9b000cd142972f5c21
parent5d5e7b5d11dfe6f29e9ed0369f96cd0363468dc6 (diff)
parent287c91dfbd55defbb2080d34cc6b386f7968be2d (diff)
Merge branch 'other' into linux-stable-ux500-3.1
-rw-r--r--include/net/bluetooth/bluetooth.h12
-rw-r--r--include/net/bluetooth/hci.h17
-rw-r--r--include/net/bluetooth/hci_core.h9
-rw-r--r--include/net/bluetooth/sco.h4
-rw-r--r--net/bluetooth/bnep/bnep.h2
-rw-r--r--net/bluetooth/bnep/core.c53
-rw-r--r--net/bluetooth/hci_conn.c47
-rw-r--r--net/bluetooth/hci_event.c6
-rw-r--r--net/bluetooth/l2cap_core.c4
-rw-r--r--net/bluetooth/lib.c2
-rw-r--r--net/bluetooth/mgmt.c2
-rw-r--r--net/bluetooth/sco.c70
12 files changed, 197 insertions, 31 deletions
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index e727555d4ee..496ba079e05 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -84,6 +84,18 @@ int bt_printk(const char *level, const char *fmt, ...);
#define BT_ERR(fmt, arg...) bt_printk(KERN_ERR, pr_fmt(fmt), ##arg)
#define BT_DBG(fmt, arg...) pr_debug(fmt "\n", ##arg)
+#define BT_SCO_PARAMETERS 8
+struct bt_sco_parameters {
+ __u32 tx_bandwidth;
+ __u32 rx_bandwidth;
+ __u16 max_latency;
+ __u16 voice_setting;
+ __u8 retrans_effort;
+ __u16 pkt_type;
+} __packed;
+
+#define BT_NO_AUTORETRY 9
+
/* Connection and socket states */
enum {
BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index be30aabe7b8..a1b00e10019 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -159,6 +159,8 @@ enum {
#define SCO_ESCO_MASK (ESCO_HV1 | ESCO_HV2 | ESCO_HV3)
#define EDR_ESCO_MASK (ESCO_2EV3 | ESCO_3EV3 | ESCO_2EV5 | ESCO_3EV5)
+#define ALL_ESCO_MASK (SCO_ESCO_MASK | ESCO_EV3 | ESCO_EV4 | ESCO_EV5 | \
+ EDR_ESCO_MASK)
/* ACL flags */
#define ACL_START_NO_FLUSH 0x00
@@ -410,6 +412,21 @@ struct hci_cp_setup_sync_conn {
__le16 pkt_type;
} __packed;
+/* Air coding format types */
+#define HCI_SYNC_AIR_CODING_CVSD 0x00
+#define HCI_SYNC_AIR_CODING_ULAW 0x01
+#define HCI_SYNC_AIR_CODING_ALAW 0x02
+#define HCI_SYNC_AIR_CODING_TRANSPARENT 0x03
+
+/* Max latency constants */
+#define HCI_SYNC_MAX_LATENCY_DONTCARE 0xffff
+
+/* Retransmission effort constants */
+#define HCI_SYNC_RETRANS_EFFORT_NO 0x00
+#define HCI_SYNC_RETRANS_EFFORT_POWER 0x01
+#define HCI_SYNC_RETRANS_EFFORT_QUALITY 0x02
+#define HCI_SYNC_RETRANS_EFFORT_DONTCARE 0xff
+
#define HCI_OP_ACCEPT_SYNC_CONN_REQ 0x0429
struct hci_cp_accept_sync_conn_req {
bdaddr_t bdaddr;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 8f441b8b296..4f6a6cea32e 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -250,6 +250,7 @@ struct hci_conn {
__u8 type;
__u8 out;
__u8 attempt;
+ __u8 no_autoretry;
__u8 dev_class[3];
__u8 features[8];
__u8 ssp_mode;
@@ -290,6 +291,8 @@ struct hci_conn {
void *l2cap_data;
void *sco_data;
+ struct bt_sco_parameters *sco_parameters;
+
struct hci_conn *link;
void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
@@ -446,13 +449,15 @@ void hci_add_sco(struct hci_conn *conn, __u16 handle);
void hci_setup_sync(struct hci_conn *conn, __u16 handle);
void hci_sco_setup(struct hci_conn *conn, __u8 status);
-struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
+struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type,
+ bdaddr_t *dst);
int hci_conn_del(struct hci_conn *conn);
void hci_conn_hash_flush(struct hci_dev *hdev);
void hci_conn_check_pending(struct hci_dev *hdev);
struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
- __u8 sec_level, __u8 auth_type);
+ __u8 sec_level, __u8 auth_type,
+ struct bt_sco_parameters *sco_parameters);
int hci_conn_check_link_mode(struct hci_conn *conn);
int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
diff --git a/include/net/bluetooth/sco.h b/include/net/bluetooth/sco.h
index 1e35c43657c..e6b5a94f7e8 100644
--- a/include/net/bluetooth/sco.h
+++ b/include/net/bluetooth/sco.h
@@ -72,7 +72,9 @@ struct sco_conn {
struct sco_pinfo {
struct bt_sock bt;
- __u32 flags;
+ struct bt_sco_parameters param;
+ __u8 no_autoretry;
+
struct sco_conn *conn;
};
diff --git a/net/bluetooth/bnep/bnep.h b/net/bluetooth/bnep/bnep.h
index e7ee5314f39..0545fe0493f 100644
--- a/net/bluetooth/bnep/bnep.h
+++ b/net/bluetooth/bnep/bnep.h
@@ -166,6 +166,8 @@ struct bnep_session {
struct socket *sock;
struct net_device *dev;
+
+ unsigned int setup_done;
};
void bnep_net_setup(struct net_device *dev);
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index d9edfe8bf9d..b7026f35a9b 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -124,7 +124,8 @@ static inline void bnep_set_default_proto_filter(struct bnep_session *s)
}
#endif
-static int bnep_ctrl_set_netfilter(struct bnep_session *s, __be16 *data, int len)
+static int bnep_ctrl_set_netfilter(struct bnep_session *s, __be16 *data,
+ int len, int *pkt_size)
{
int n;
@@ -140,6 +141,8 @@ static int bnep_ctrl_set_netfilter(struct bnep_session *s, __be16 *data, int len
BT_DBG("filter len %d", n);
+ *pkt_size = 2 + n;
+
#ifdef CONFIG_BT_BNEP_PROTO_FILTER
n /= 4;
if (n <= BNEP_MAX_PROTO_FILTERS) {
@@ -170,7 +173,8 @@ static int bnep_ctrl_set_netfilter(struct bnep_session *s, __be16 *data, int len
return 0;
}
-static int bnep_ctrl_set_mcfilter(struct bnep_session *s, u8 *data, int len)
+static int bnep_ctrl_set_mcfilter(struct bnep_session *s, u8 *data, int len,
+ int *pkt_size)
{
int n;
@@ -186,6 +190,8 @@ static int bnep_ctrl_set_mcfilter(struct bnep_session *s, u8 *data, int len)
BT_DBG("filter len %d", n);
+ *pkt_size = 2 + n;
+
#ifdef CONFIG_BT_BNEP_MC_FILTER
n /= (ETH_ALEN * 2);
@@ -231,7 +237,8 @@ static int bnep_ctrl_set_mcfilter(struct bnep_session *s, u8 *data, int len)
return 0;
}
-static int bnep_rx_control(struct bnep_session *s, void *data, int len)
+static int bnep_rx_control(struct bnep_session *s, void *data, int len,
+ int *pkt_size)
{
u8 cmd = *(u8 *)data;
int err = 0;
@@ -239,6 +246,8 @@ static int bnep_rx_control(struct bnep_session *s, void *data, int len)
data++;
len--;
+ *pkt_size = 0;
+
switch (cmd) {
case BNEP_CMD_NOT_UNDERSTOOD:
case BNEP_SETUP_CONN_RSP:
@@ -248,15 +257,27 @@ static int bnep_rx_control(struct bnep_session *s, void *data, int len)
break;
case BNEP_FILTER_NET_TYPE_SET:
- err = bnep_ctrl_set_netfilter(s, data, len);
+ err = bnep_ctrl_set_netfilter(s, data, len, pkt_size);
break;
case BNEP_FILTER_MULTI_ADDR_SET:
- err = bnep_ctrl_set_mcfilter(s, data, len);
+ err = bnep_ctrl_set_mcfilter(s, data, len, pkt_size);
break;
- case BNEP_SETUP_CONN_REQ:
- err = bnep_send_rsp(s, BNEP_SETUP_CONN_RSP, BNEP_CONN_NOT_ALLOWED);
+ case BNEP_SETUP_CONN_REQ: {
+ u8 uuid_size = *(u8 *)data;
+
+ /* First setup connection should be silently discarded,
+ * it was already handled when accepting connection.
+ */
+ if (s->setup_done)
+ err = bnep_send_rsp(s, BNEP_SETUP_CONN_RSP,
+ BNEP_CONN_NOT_ALLOWED);
+ else
+ s->setup_done = 1;
+
+ *pkt_size = 1 + 2 * uuid_size;
+ }
break;
default: {
@@ -269,6 +290,10 @@ static int bnep_rx_control(struct bnep_session *s, void *data, int len)
break;
}
+ if (*pkt_size > 0)
+ /* Add 1 byte for type field */
+ (*pkt_size)++;
+
return err;
}
@@ -276,6 +301,7 @@ static int bnep_rx_extension(struct bnep_session *s, struct sk_buff *skb)
{
struct bnep_ext_hdr *h;
int err = 0;
+ int pkt_size;
do {
h = (void *) skb->data;
@@ -288,7 +314,7 @@ static int bnep_rx_extension(struct bnep_session *s, struct sk_buff *skb)
switch (h->type & BNEP_TYPE_MASK) {
case BNEP_EXT_CONTROL:
- bnep_rx_control(s, skb->data, skb->len);
+ bnep_rx_control(s, skb->data, skb->len, &pkt_size);
break;
default:
@@ -328,7 +354,16 @@ static inline int bnep_rx_frame(struct bnep_session *s, struct sk_buff *skb)
goto badframe;
if ((type & BNEP_TYPE_MASK) == BNEP_CONTROL) {
- bnep_rx_control(s, skb->data, skb->len);
+ int pkt_size = 0;
+
+ bnep_rx_control(s, skb->data, skb->len, &pkt_size);
+
+ if (pkt_size > 0 && (type & BNEP_EXT_HEADER)) {
+ skb_pull(skb, pkt_size);
+ if (bnep_rx_extension(s, skb) < 0)
+ goto badframe;
+ }
+
kfree_skb(skb);
return 0;
}
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index ea7f031f3b0..f170bbbdcf0 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -44,6 +44,7 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/sco.h>
static void hci_le_connect(struct hci_conn *conn)
{
@@ -147,16 +148,21 @@ void hci_add_sco(struct hci_conn *conn, __u16 handle)
{
struct hci_dev *hdev = conn->hdev;
struct hci_cp_add_sco cp;
+ struct bt_sco_parameters *p = conn->sco_parameters;
+ __u16 pkt_type;
BT_DBG("%p", conn);
+ /* HCI_Add_SCO_Connection uses shifted bitmask for packet type */
+ pkt_type = (p->pkt_type << 5) & conn->pkt_type;
+
conn->state = BT_CONNECT;
conn->out = 1;
conn->attempt++;
cp.handle = cpu_to_le16(handle);
- cp.pkt_type = cpu_to_le16(conn->pkt_type);
+ cp.pkt_type = cpu_to_le16(pkt_type);
hci_send_cmd(hdev, HCI_OP_ADD_SCO, sizeof(cp), &cp);
}
@@ -165,22 +171,35 @@ void hci_setup_sync(struct hci_conn *conn, __u16 handle)
{
struct hci_dev *hdev = conn->hdev;
struct hci_cp_setup_sync_conn cp;
+ struct bt_sco_parameters *p = conn->sco_parameters;
+ __u16 voice_setting;
+ __u16 pkt_type;
BT_DBG("%p", conn);
+ /*
+ * Combine voice setting using device parameters and air coding
+ * format set by user.
+ */
+ voice_setting = (hdev->voice_setting & 0xfffc) |
+ (p->voice_setting & 0x0003);
+
+ /* Bits for EDR packets have inverted logic in BT spec. */
+ pkt_type = (p->pkt_type & conn->pkt_type) ^ EDR_ESCO_MASK;
+
conn->state = BT_CONNECT;
conn->out = 1;
conn->attempt++;
cp.handle = cpu_to_le16(handle);
- cp.pkt_type = cpu_to_le16(conn->pkt_type);
- cp.tx_bandwidth = cpu_to_le32(0x00001f40);
- cp.rx_bandwidth = cpu_to_le32(0x00001f40);
- cp.max_latency = cpu_to_le16(0xffff);
- cp.voice_setting = cpu_to_le16(hdev->voice_setting);
- cp.retrans_effort = 0xff;
+ cp.tx_bandwidth = cpu_to_le32(p->tx_bandwidth);
+ cp.rx_bandwidth = cpu_to_le32(p->rx_bandwidth);
+ cp.max_latency = cpu_to_le16(p->max_latency);
+ cp.voice_setting = cpu_to_le16(voice_setting);
+ cp.retrans_effort = p->retrans_effort;
+ cp.pkt_type = cpu_to_le16(pkt_type);
hci_send_cmd(hdev, HCI_OP_SETUP_SYNC_CONN, sizeof(cp), &cp);
}
@@ -333,7 +352,8 @@ static void hci_conn_auto_accept(unsigned long arg)
hci_dev_unlock(hdev);
}
-struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
+struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type,
+ bdaddr_t *dst)
{
struct hci_conn *conn;
@@ -362,13 +382,12 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
break;
case SCO_LINK:
if (lmp_esco_capable(hdev))
- conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
- (hdev->esco_type & EDR_ESCO_MASK);
+ conn->pkt_type = hdev->esco_type & SCO_ESCO_MASK;
else
conn->pkt_type = hdev->pkt_type & SCO_PTYPE_MASK;
break;
case ESCO_LINK:
- conn->pkt_type = hdev->esco_type & ~EDR_ESCO_MASK;
+ conn->pkt_type = hdev->esco_type;
break;
}
@@ -492,7 +511,9 @@ EXPORT_SYMBOL(hci_get_route);
/* Create SCO, ACL or LE connection.
* Device _must_ be locked */
-struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type)
+struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
+ __u8 sec_level, __u8 auth_type,
+ struct bt_sco_parameters *sco_parameters)
{
struct hci_conn *acl;
struct hci_conn *sco;
@@ -557,6 +578,8 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
hci_conn_hold(sco);
+ sco->sco_parameters = sco_parameters;
+
if (acl->state == BT_CONNECTED &&
(sco->state == BT_OPEN || sco->state == BT_CLOSED)) {
acl->power_save = 1;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 7ef4eb4435f..d7e7ffecc46 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1486,6 +1486,7 @@ static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *sk
conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
if (!conn) {
+ /* pkt_type not yet used for incoming connections */
conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr);
if (!conn) {
BT_ERR("No memory for new connection");
@@ -2483,9 +2484,8 @@ static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_bu
case 0x1c: /* SCO interval rejected */
case 0x1a: /* Unsupported Remote Feature */
case 0x1f: /* Unspecified error */
- if (conn->out && conn->attempt < 2) {
- conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
- (hdev->esco_type & EDR_ESCO_MASK);
+ if (conn->out && !conn->no_autoretry && conn->attempt < 2) {
+ conn->pkt_type = hdev->esco_type & SCO_ESCO_MASK;
hci_setup_sync(conn, conn->link->handle);
goto unlock;
}
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index b3bdb482bbe..bd39d4af608 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1109,10 +1109,10 @@ int l2cap_chan_connect(struct l2cap_chan *chan)
if (chan->dcid == L2CAP_CID_LE_DATA)
hcon = hci_connect(hdev, LE_LINK, dst,
- chan->sec_level, auth_type);
+ chan->sec_level, auth_type, NULL);
else
hcon = hci_connect(hdev, ACL_LINK, dst,
- chan->sec_level, auth_type);
+ chan->sec_level, auth_type, NULL);
if (IS_ERR(hcon)) {
err = PTR_ERR(hcon);
diff --git a/net/bluetooth/lib.c b/net/bluetooth/lib.c
index 86a6bed229d..f9b2dde4c0a 100644
--- a/net/bluetooth/lib.c
+++ b/net/bluetooth/lib.c
@@ -136,6 +136,8 @@ int bt_to_errno(__u16 code)
return EPROTONOSUPPORT;
case 0x1b:
+ case 0x1c:
+ case 0x1d:
return ECONNREFUSED;
case 0x19:
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 53e109eb043..9d8a5bd20a6 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1372,7 +1372,7 @@ static int pair_device(struct sock *sk, u16 index, unsigned char *data, u16 len)
auth_type = HCI_AT_DEDICATED_BONDING_MITM;
}
- conn = hci_connect(hdev, ACL_LINK, &cp->bdaddr, sec_level, auth_type);
+ conn = hci_connect(hdev, ACL_LINK, &cp->bdaddr, sec_level, auth_type, NULL);
if (IS_ERR(conn)) {
err = PTR_ERR(conn);
goto unlock;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index a324b009e34..d65ec5f7327 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -178,6 +178,7 @@ static int sco_connect(struct sock *sk)
{
bdaddr_t *src = &bt_sk(sk)->src;
bdaddr_t *dst = &bt_sk(sk)->dst;
+ struct bt_sco_parameters *param = &sco_pi(sk)->param;
struct sco_conn *conn;
struct hci_conn *hcon;
struct hci_dev *hdev;
@@ -196,12 +197,15 @@ static int sco_connect(struct sock *sk)
else
type = SCO_LINK;
- hcon = hci_connect(hdev, type, dst, BT_SECURITY_LOW, HCI_AT_NO_BONDING);
+ hcon = hci_connect(hdev, type, dst,
+ BT_SECURITY_LOW, HCI_AT_NO_BONDING, param);
if (IS_ERR(hcon)) {
err = PTR_ERR(hcon);
goto done;
}
+ hcon->no_autoretry = sco_pi(sk)->no_autoretry;
+
conn = sco_conn_add(hcon, 0);
if (!conn) {
hci_conn_put(hcon);
@@ -402,12 +406,26 @@ static void sco_sock_close(struct sock *sk)
static void sco_sock_init(struct sock *sk, struct sock *parent)
{
+ struct sco_pinfo *pi = sco_pi(sk);
+
BT_DBG("sk %p", sk);
if (parent) {
sk->sk_type = parent->sk_type;
security_sk_clone(parent, sk);
}
+
+ pi->param.tx_bandwidth = 8000;
+ pi->param.rx_bandwidth = 8000;
+ pi->param.max_latency = HCI_SYNC_MAX_LATENCY_DONTCARE;
+
+ /* Only Air Coding Format matters here, other data will be
+ * overriden by device settings during connection setup.
+ */
+ pi->param.voice_setting = HCI_SYNC_AIR_CODING_CVSD;
+
+ pi->param.retrans_effort = HCI_SYNC_RETRANS_EFFORT_DONTCARE;
+ pi->param.pkt_type = ALL_ESCO_MASK;
}
static struct proto sco_proto = {
@@ -661,13 +679,45 @@ static int sco_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
+ int len;
int err = 0;
+ struct bt_sco_parameters *param;
+ u32 opt;
BT_DBG("sk %p", sk);
+ if (level != SOL_BLUETOOTH)
+ return -ENOPROTOOPT;
+
lock_sock(sk);
switch (optname) {
+ case BT_SCO_PARAMETERS:
+ /* We do not support changing SCO parameters during
+ * connection.
+ */
+ if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) {
+ err = -EBUSY;
+ break;
+ }
+
+ param = &sco_pi(sk)->param;
+
+ len = min_t(unsigned int, sizeof(*param), optlen);
+ if (copy_from_user((char *) param, optval, len))
+ err = -EFAULT;
+
+ break;
+
+ case BT_NO_AUTORETRY:
+ if (get_user(opt, (u32 __user *) optval)) {
+ err = -EFAULT;
+ break;
+ }
+
+ sco_pi(sk)->no_autoretry = opt;
+ break;
+
default:
err = -ENOPROTOOPT;
break;
@@ -737,18 +787,36 @@ static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char
{
struct sock *sk = sock->sk;
int len, err = 0;
+ struct bt_sco_parameters *params;
BT_DBG("sk %p", sk);
if (level == SOL_SCO)
return sco_sock_getsockopt_old(sock, optname, optval, optlen);
+ if (level != SOL_BLUETOOTH)
+ return -ENOPROTOOPT;
+
if (get_user(len, optlen))
return -EFAULT;
lock_sock(sk);
switch (optname) {
+ case BT_SCO_PARAMETERS:
+ params = &sco_pi(sk)->param;
+
+ len = min_t(unsigned int, len, sizeof(*params));
+ if (copy_to_user(optval, (char *) params, len))
+ err = -EFAULT;
+
+ break;
+
+ case BT_NO_AUTORETRY:
+ if (put_user(sco_pi(sk)->no_autoretry, (u32 __user *) optval))
+ err = -EFAULT;
+ break;
+
default:
err = -ENOPROTOOPT;
break;