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Diffstat (limited to 'net/bluetooth/af_bluetooth.c')
-rw-r--r--net/bluetooth/af_bluetooth.c70
1 files changed, 59 insertions, 11 deletions
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 9096137c889c..56ca494621c6 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -25,12 +25,13 @@
/* Bluetooth address family and sockets. */
#include <linux/module.h>
+#include <linux/debugfs.h>
#include <asm/ioctls.h>
#include <net/bluetooth/bluetooth.h>
#include <linux/proc_fs.h>
-#define VERSION "2.16"
+#define VERSION "2.17"
/* Bluetooth sockets */
#define BT_MAX_PROTO 8
@@ -221,12 +222,11 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
if (flags & (MSG_OOB))
return -EOPNOTSUPP;
- msg->msg_namelen = 0;
-
skb = skb_recv_datagram(sk, flags, noblock, &err);
if (!skb) {
if (sk->sk_shutdown & RCV_SHUTDOWN)
return 0;
+
return err;
}
@@ -238,9 +238,14 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
skb_reset_transport_header(skb);
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
- if (err == 0)
+ if (err == 0) {
sock_recv_ts_and_drops(msg, sk, skb);
+ if (bt_sk(sk)->skb_msg_name)
+ bt_sk(sk)->skb_msg_name(skb, msg->msg_name,
+ &msg->msg_namelen);
+ }
+
skb_free_datagram(sk, skb);
return err ? : copied;
@@ -287,8 +292,6 @@ int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
if (flags & MSG_OOB)
return -EOPNOTSUPP;
- msg->msg_namelen = 0;
-
BT_DBG("sk %p size %zu", sk, size);
lock_sock(sk);
@@ -490,6 +493,7 @@ int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
}
EXPORT_SYMBOL(bt_sock_ioctl);
+/* This function expects the sk lock to be held when called */
int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
{
DECLARE_WAITQUEUE(wait, current);
@@ -525,6 +529,46 @@ int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
}
EXPORT_SYMBOL(bt_sock_wait_state);
+/* This function expects the sk lock to be held when called */
+int bt_sock_wait_ready(struct sock *sk, unsigned long flags)
+{
+ DECLARE_WAITQUEUE(wait, current);
+ unsigned long timeo;
+ int err = 0;
+
+ BT_DBG("sk %p", sk);
+
+ timeo = sock_sndtimeo(sk, flags & O_NONBLOCK);
+
+ add_wait_queue(sk_sleep(sk), &wait);
+ set_current_state(TASK_INTERRUPTIBLE);
+ while (test_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags)) {
+ if (!timeo) {
+ err = -EAGAIN;
+ break;
+ }
+
+ if (signal_pending(current)) {
+ err = sock_intr_errno(timeo);
+ break;
+ }
+
+ release_sock(sk);
+ timeo = schedule_timeout(timeo);
+ lock_sock(sk);
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ err = sock_error(sk);
+ if (err)
+ break;
+ }
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(sk_sleep(sk), &wait);
+
+ return err;
+}
+EXPORT_SYMBOL(bt_sock_wait_ready);
+
#ifdef CONFIG_PROC_FS
struct bt_seq_state {
struct bt_sock_list *l;
@@ -563,7 +607,7 @@ static int bt_seq_show(struct seq_file *seq, void *v)
struct bt_sock_list *l = s->l;
if (v == SEQ_START_TOKEN) {
- seq_puts(seq ,"sk RefCnt Rmem Wmem User Inode Src Dst Parent");
+ seq_puts(seq ,"sk RefCnt Rmem Wmem User Inode Parent");
if (l->custom_seq_show) {
seq_putc(seq, ' ');
@@ -576,15 +620,13 @@ static int bt_seq_show(struct seq_file *seq, void *v)
struct bt_sock *bt = bt_sk(sk);
seq_printf(seq,
- "%pK %-6d %-6u %-6u %-6u %-6lu %pMR %pMR %-6lu",
+ "%pK %-6d %-6u %-6u %-6u %-6lu %-6lu",
sk,
atomic_read(&sk->sk_refcnt),
sk_rmem_alloc_get(sk),
sk_wmem_alloc_get(sk),
from_kuid(seq_user_ns(seq), sock_i_uid(sk)),
sock_i_ino(sk),
- &bt->src,
- &bt->dst,
bt->parent? sock_i_ino(bt->parent): 0LU);
if (l->custom_seq_show) {
@@ -662,12 +704,17 @@ static struct net_proto_family bt_sock_family_ops = {
.create = bt_sock_create,
};
+struct dentry *bt_debugfs;
+EXPORT_SYMBOL_GPL(bt_debugfs);
+
static int __init bt_init(void)
{
int err;
BT_INFO("Core ver %s", VERSION);
+ bt_debugfs = debugfs_create_dir("bluetooth", NULL);
+
err = bt_sysfs_init();
if (err < 0)
return err;
@@ -708,7 +755,6 @@ error:
static void __exit bt_exit(void)
{
-
sco_exit();
l2cap_exit();
@@ -718,6 +764,8 @@ static void __exit bt_exit(void)
sock_unregister(PF_BLUETOOTH);
bt_sysfs_cleanup();
+
+ debugfs_remove_recursive(bt_debugfs);
}
subsys_initcall(bt_init);