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path: root/net/bluetooth/l2cap_sock.c
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Diffstat (limited to 'net/bluetooth/l2cap_sock.c')
-rw-r--r--net/bluetooth/l2cap_sock.c84
1 files changed, 52 insertions, 32 deletions
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 29122ed28ea9..3bb1611b9d48 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -124,7 +124,7 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
return -EINVAL;
err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
- &la.l2_bdaddr);
+ &la.l2_bdaddr, la.l2_bdaddr_type);
if (err)
return err;
@@ -148,12 +148,16 @@ static int l2cap_sock_listen(struct socket *sock, int backlog)
lock_sock(sk);
- if ((sock->type != SOCK_SEQPACKET && sock->type != SOCK_STREAM)
- || sk->sk_state != BT_BOUND) {
+ if (sk->sk_state != BT_BOUND) {
err = -EBADFD;
goto done;
}
+ if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM) {
+ err = -EINVAL;
+ goto done;
+ }
+
switch (chan->mode) {
case L2CAP_MODE_BASIC:
break;
@@ -320,8 +324,8 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
case L2CAP_CONNINFO:
if (sk->sk_state != BT_CONNECTED &&
- !(sk->sk_state == BT_CONNECT2 &&
- bt_sk(sk)->defer_setup)) {
+ !(sk->sk_state == BT_CONNECT2 &&
+ test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) {
err = -ENOTCONN;
break;
}
@@ -375,7 +379,10 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
}
memset(&sec, 0, sizeof(sec));
- sec.level = chan->sec_level;
+ if (chan->conn)
+ sec.level = chan->conn->hcon->sec_level;
+ else
+ sec.level = chan->sec_level;
if (sk->sk_state == BT_CONNECTED)
sec.key_size = chan->conn->hcon->enc_key_size;
@@ -392,7 +399,8 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
break;
}
- if (put_user(bt_sk(sk)->defer_setup, (u32 __user *) optval))
+ if (put_user(test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags),
+ (u32 __user *) optval))
err = -EFAULT;
break;
@@ -592,10 +600,14 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
sk->sk_state = BT_CONFIG;
chan->state = BT_CONFIG;
- /* or for ACL link, under defer_setup time */
- } else if (sk->sk_state == BT_CONNECT2 &&
- bt_sk(sk)->defer_setup) {
- err = l2cap_chan_check_security(chan);
+ /* 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))
+ set_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags);
+ else
+ sk->sk_state_change(sk);
} else {
err = -EINVAL;
}
@@ -612,7 +624,10 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
break;
}
- bt_sk(sk)->defer_setup = opt;
+ if (opt)
+ set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
+ else
+ clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
break;
case BT_FLUSHABLE:
@@ -712,16 +727,13 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
if (msg->msg_flags & MSG_OOB)
return -EOPNOTSUPP;
- lock_sock(sk);
-
- if (sk->sk_state != BT_CONNECTED) {
- release_sock(sk);
+ if (sk->sk_state != BT_CONNECTED)
return -ENOTCONN;
- }
+ l2cap_chan_lock(chan);
err = l2cap_chan_send(chan, msg, len, sk->sk_priority);
+ l2cap_chan_unlock(chan);
- release_sock(sk);
return err;
}
@@ -733,7 +745,8 @@ static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct ms
lock_sock(sk);
- if (sk->sk_state == BT_CONNECT2 && bt_sk(sk)->defer_setup) {
+ if (sk->sk_state == BT_CONNECT2 && test_bit(BT_SK_DEFER_SETUP,
+ &bt_sk(sk)->flags)) {
sk->sk_state = BT_CONFIG;
pi->chan->state = BT_CONFIG;
@@ -927,12 +940,19 @@ static void l2cap_sock_state_change_cb(void *data, int state)
}
static struct sk_buff *l2cap_sock_alloc_skb_cb(struct l2cap_chan *chan,
- unsigned long len, int nb,
- int *err)
+ unsigned long len, int nb)
{
- struct sock *sk = chan->sk;
+ struct sk_buff *skb;
+ int err;
+
+ l2cap_chan_unlock(chan);
+ skb = bt_skb_send_alloc(chan->sk, len, nb, &err);
+ l2cap_chan_lock(chan);
+
+ if (!skb)
+ return ERR_PTR(err);
- return bt_skb_send_alloc(sk, len, nb, err);
+ return skb;
}
static struct l2cap_ops l2cap_chan_ops = {
@@ -948,6 +968,7 @@ static void l2cap_sock_destruct(struct sock *sk)
{
BT_DBG("sk %p", sk);
+ l2cap_chan_put(l2cap_pi(sk)->chan);
if (l2cap_pi(sk)->rx_busy_skb) {
kfree_skb(l2cap_pi(sk)->rx_busy_skb);
l2cap_pi(sk)->rx_busy_skb = NULL;
@@ -968,7 +989,7 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
struct l2cap_chan *pchan = l2cap_pi(parent)->chan;
sk->sk_type = parent->sk_type;
- bt_sk(sk)->defer_setup = bt_sk(parent)->defer_setup;
+ bt_sk(sk)->flags = bt_sk(parent)->flags;
chan->chan_type = pchan->chan_type;
chan->imtu = pchan->imtu;
@@ -1006,13 +1027,8 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
} else {
chan->mode = L2CAP_MODE_BASIC;
}
- chan->max_tx = L2CAP_DEFAULT_MAX_TX;
- chan->fcs = L2CAP_FCS_CRC16;
- chan->tx_win = L2CAP_DEFAULT_TX_WINDOW;
- chan->tx_win_max = L2CAP_DEFAULT_TX_WINDOW;
- chan->sec_level = BT_SECURITY_LOW;
- chan->flags = 0;
- set_bit(FLAG_FORCE_ACTIVE, &chan->flags);
+
+ l2cap_chan_set_defaults(chan);
}
/* Default config options */
@@ -1048,12 +1064,16 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int p
sk->sk_protocol = proto;
sk->sk_state = BT_OPEN;
- chan = l2cap_chan_create(sk);
+ chan = l2cap_chan_create();
if (!chan) {
l2cap_sock_kill(sk);
return NULL;
}
+ l2cap_chan_hold(chan);
+
+ chan->sk = sk;
+
l2cap_pi(sk)->chan = chan;
return sk;
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-14 18:33:12 +0000