static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
struct bt_security sec;
int len, err = 0;
u32 opt;
BT_DBG("sk %p", sk);
if (level == SOL_L2CAP)
return l2cap_sock_setsockopt_old(sock, optname, optval, optlen);
if (level != SOL_BLUETOOTH)
return -ENOPROTOOPT;
lock_sock(sk);
switch (optname) {
case BT_SECURITY:
if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM
&& sk->sk_type != SOCK_RAW) {
err = -EINVAL;
break;
}
sec.level = BT_SECURITY_LOW;
len = min_t(unsigned int, sizeof(sec), optlen);
if (copy_from_user((char *) &sec, optval, len)) {
err = -EFAULT;
break;
}
if (sec.level < BT_SECURITY_LOW ||
sec.level > BT_SECURITY_HIGH) {
err = -EINVAL;
break;
}
l2cap_pi(sk)->sec_level = sec.level;
break;
case BT_DEFER_SETUP:
if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
err = -EINVAL;
break;
}
if (get_user(opt, (u32 __user *) optval)) {
err = -EFAULT;
break;
}
bt_sk(sk)->defer_setup = opt;
break;
case BT_FLUSHABLE:
if (get_user(opt, (u32 __user *) optval)) {
err = -EFAULT;
break;
}
if (opt > BT_FLUSHABLE_ON) {
err = -EINVAL;
break;
}
if (opt == BT_FLUSHABLE_OFF) {
struct l2cap_conn *conn = l2cap_pi(sk)->conn;
/* proceed futher only when we have l2cap_conn and
No Flush support in the LM */
if (!conn || !lmp_no_flush_capable(conn->hcon->hdev)) {
err = -EINVAL;
break;
}
}
l2cap_pi(sk)->flushable = opt;
break;
default:
err = -ENOPROTOOPT;
break;
}
release_sock(sk);
return err;
}
static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
struct bt_security sec;
struct bt_power pwr;
struct bt_le_params le_params;
struct l2cap_conn *conn;
int len, err = 0;
u32 opt;
BT_DBG("sk %p", sk);
if (level == SOL_L2CAP)
return l2cap_sock_setsockopt_old(sock, optname, optval, optlen);
if (level != SOL_BLUETOOTH)
return -ENOPROTOOPT;
lock_sock(sk);
switch (optname) {
case BT_SECURITY:
if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM
&& sk->sk_type != SOCK_RAW) {
err = -EINVAL;
break;
}
sec.level = BT_SECURITY_LOW;
len = min_t(unsigned int, sizeof(sec), optlen);
if (copy_from_user((char *) &sec, optval, len)) {
err = -EFAULT;
break;
}
if (sec.level < BT_SECURITY_LOW ||
sec.level > BT_SECURITY_HIGH) {
err = -EINVAL;
break;
}
l2cap_pi(sk)->sec_level = sec.level;
conn = l2cap_pi(sk)->conn;
if (conn && l2cap_pi(sk)->scid == L2CAP_CID_LE_DATA) {
if (!conn->hcon->out) {
err = -EINVAL;
break;
}
if (smp_conn_security(conn, sec.level))
break;
err = 0;
sk->sk_state = BT_CONFIG;
}
break;
case BT_DEFER_SETUP:
if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
err = -EINVAL;
break;
}
if (get_user(opt, (u32 __user *) optval)) {
err = -EFAULT;
break;
}
bt_sk(sk)->defer_setup = opt;
break;
case BT_POWER:
if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM
&& sk->sk_type != SOCK_RAW) {
err = -EINVAL;
break;
}
pwr.force_active = 1;
len = min_t(unsigned int, sizeof(pwr), optlen);
if (copy_from_user((char *) &pwr, optval, len)) {
err = -EFAULT;
break;
}
l2cap_pi(sk)->force_active = pwr.force_active;
break;
case BT_AMP_POLICY:
if (get_user(opt, (u32 __user *) optval)) {
err = -EFAULT;
break;
}
if ((opt > BT_AMP_POLICY_PREFER_AMP) ||
((l2cap_pi(sk)->mode != L2CAP_MODE_ERTM) &&
(l2cap_pi(sk)->mode != L2CAP_MODE_STREAMING))) {
err = -EINVAL;
break;
}
l2cap_pi(sk)->amp_pref = (u8) opt;
BT_DBG("BT_AMP_POLICY now %d", opt);
if ((sk->sk_state == BT_CONNECTED) &&
(l2cap_pi(sk)->amp_move_role == L2CAP_AMP_MOVE_NONE))
l2cap_amp_move_init(sk);
break;
case BT_FLUSHABLE:
if (get_user(opt, (u32 __user *) optval)) {
err = -EFAULT;
break;
}
l2cap_pi(sk)->flushable = opt;
break;
case BT_LE_PARAMS:
if (l2cap_pi(sk)->scid != L2CAP_CID_LE_DATA) {
err = -EINVAL;
break;
}
if (copy_from_user((char *) &le_params, optval,
sizeof(struct bt_le_params))) {
err = -EFAULT;
break;
}
conn = l2cap_pi(sk)->conn;
if (!conn || !conn->hcon ||
l2cap_pi(sk)->scid != L2CAP_CID_LE_DATA) {
memcpy(&bt_sk(sk)->le_params, &le_params,
sizeof(le_params));
break;
}
if (!conn->hcon->out ||
!l2cap_sock_le_params_valid(&le_params)) {
err = -EINVAL;
break;
}
memcpy(&bt_sk(sk)->le_params, &le_params, sizeof(le_params));
hci_le_conn_update(conn->hcon,
le_params.interval_min,
le_params.interval_max,
le_params.latency,
le_params.supervision_timeout);
break;
default:
err = -ENOPROTOOPT;
break;
}
release_sock(sk);
return err;
}
static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
struct l2cap_chan *chan = l2cap_pi(sk)->chan;
struct bt_security sec;
struct bt_power pwr;
struct l2cap_conn *conn;
int len, err = 0;
u32 opt;
BT_DBG("sk %p", sk);
if (level == SOL_L2CAP)
return l2cap_sock_setsockopt_old(sock, optname, optval, optlen);
if (level != SOL_BLUETOOTH)
return -ENOPROTOOPT;
lock_sock(sk);
switch (optname) {
case BT_SECURITY:
if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
chan->chan_type != L2CAP_CHAN_FIXED &&
chan->chan_type != L2CAP_CHAN_RAW) {
err = -EINVAL;
break;
}
sec.level = BT_SECURITY_LOW;
len = min_t(unsigned int, sizeof(sec), optlen);
if (copy_from_user((char *) &sec, optval, len)) {
err = -EFAULT;
break;
}
if (sec.level < BT_SECURITY_LOW ||
sec.level > BT_SECURITY_HIGH) {
err = -EINVAL;
break;
}
chan->sec_level = sec.level;
if (!chan->conn)
break;
conn = chan->conn;
/*change security for LE channels */
if (chan->scid == L2CAP_CID_ATT) {
if (smp_conn_security(conn->hcon, sec.level))
break;
set_bit(FLAG_PENDING_SECURITY, &chan->flags);
sk->sk_state = BT_CONFIG;
chan->state = BT_CONFIG;
/* or for ACL link */
} else if ((sk->sk_state == BT_CONNECT2 &&
test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) ||
sk->sk_state == BT_CONNECTED) {
if (!l2cap_chan_check_security(chan, true))
set_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags);
else
sk->sk_state_change(sk);
} else {
err = -EINVAL;
}
break;
case BT_DEFER_SETUP:
if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
err = -EINVAL;
break;
}
if (get_user(opt, (u32 __user *) optval)) {
err = -EFAULT;
break;
}
if (opt) {
set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
set_bit(FLAG_DEFER_SETUP, &chan->flags);
} else {
clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
clear_bit(FLAG_DEFER_SETUP, &chan->flags);
}
break;
case BT_FLUSHABLE:
if (get_user(opt, (u32 __user *) optval)) {
err = -EFAULT;
break;
}
if (opt > BT_FLUSHABLE_ON) {
err = -EINVAL;
break;
}
if (opt == BT_FLUSHABLE_OFF) {
conn = chan->conn;
/* proceed further only when we have l2cap_conn and
No Flush support in the LM */
if (!conn || !lmp_no_flush_capable(conn->hcon->hdev)) {
err = -EINVAL;
break;
}
}
if (opt)
set_bit(FLAG_FLUSHABLE, &chan->flags);
else
clear_bit(FLAG_FLUSHABLE, &chan->flags);
break;
case BT_POWER:
if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
chan->chan_type != L2CAP_CHAN_RAW) {
err = -EINVAL;
break;
}
pwr.force_active = BT_POWER_FORCE_ACTIVE_ON;
len = min_t(unsigned int, sizeof(pwr), optlen);
if (copy_from_user((char *) &pwr, optval, len)) {
err = -EFAULT;
break;
}
if (pwr.force_active)
set_bit(FLAG_FORCE_ACTIVE, &chan->flags);
else
clear_bit(FLAG_FORCE_ACTIVE, &chan->flags);
break;
case BT_CHANNEL_POLICY:
if (get_user(opt, (u32 __user *) optval)) {
err = -EFAULT;
break;
}
if (opt > BT_CHANNEL_POLICY_AMP_PREFERRED) {
err = -EINVAL;
break;
}
if (chan->mode != L2CAP_MODE_ERTM &&
chan->mode != L2CAP_MODE_STREAMING) {
err = -EOPNOTSUPP;
break;
}
chan->chan_policy = (u8) opt;
if (sk->sk_state == BT_CONNECTED &&
chan->move_role == L2CAP_MOVE_ROLE_NONE)
l2cap_move_start(chan);
break;
case BT_SNDMTU:
if (!bdaddr_type_is_le(chan->src_type)) {
err = -EINVAL;
break;
}
/* Setting is not supported as it's the remote side that
* decides this.
*/
err = -EPERM;
break;
case BT_RCVMTU:
if (!bdaddr_type_is_le(chan->src_type)) {
err = -EINVAL;
break;
}
if (sk->sk_state == BT_CONNECTED) {
err = -EISCONN;
break;
}
if (get_user(opt, (u32 __user *) optval)) {
err = -EFAULT;
break;
}
chan->imtu = opt;
break;
default:
err = -ENOPROTOOPT;
break;
}
release_sock(sk);
return err;
}