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-rw-r--r--net/l2tp/l2tp_core.h1
-rw-r--r--net/l2tp/l2tp_ip.c27
-rw-r--r--net/l2tp/l2tp_ip6.c2
3 files changed, 28 insertions, 2 deletions
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index 8f560f7140a0..aebf281d09ee 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -263,6 +263,7 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb,
int l2tp_nl_register_ops(enum l2tp_pwtype pw_type,
const struct l2tp_nl_cmd_ops *ops);
void l2tp_nl_unregister_ops(enum l2tp_pwtype pw_type);
+int l2tp_ioctl(struct sock *sk, int cmd, unsigned long arg);
/* Session reference counts. Incremented when code obtains a reference
* to a session.
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 3d73278b86ca..28c21546d5b6 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -11,6 +11,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <asm/ioctls.h>
#include <linux/icmp.h>
#include <linux/module.h>
#include <linux/skbuff.h>
@@ -553,6 +554,30 @@ out:
return err ? err : copied;
}
+int l2tp_ioctl(struct sock *sk, int cmd, unsigned long arg)
+{
+ struct sk_buff *skb;
+ int amount;
+
+ switch (cmd) {
+ case SIOCOUTQ:
+ amount = sk_wmem_alloc_get(sk);
+ break;
+ case SIOCINQ:
+ spin_lock_bh(&sk->sk_receive_queue.lock);
+ skb = skb_peek(&sk->sk_receive_queue);
+ amount = skb ? skb->len : 0;
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+ break;
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+
+ return put_user(amount, (int __user *)arg);
+}
+EXPORT_SYMBOL(l2tp_ioctl);
+
static struct proto l2tp_ip_prot = {
.name = "L2TP/IP",
.owner = THIS_MODULE,
@@ -561,7 +586,7 @@ static struct proto l2tp_ip_prot = {
.bind = l2tp_ip_bind,
.connect = l2tp_ip_connect,
.disconnect = l2tp_ip_disconnect,
- .ioctl = udp_ioctl,
+ .ioctl = l2tp_ioctl,
.destroy = l2tp_ip_destroy_sock,
.setsockopt = ip_setsockopt,
.getsockopt = ip_getsockopt,
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index 331ccf5a7bad..f47c45250f86 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -722,7 +722,7 @@ static struct proto l2tp_ip6_prot = {
.bind = l2tp_ip6_bind,
.connect = l2tp_ip6_connect,
.disconnect = l2tp_ip6_disconnect,
- .ioctl = udp_ioctl,
+ .ioctl = l2tp_ioctl,
.destroy = l2tp_ip6_destroy_sock,
.setsockopt = ipv6_setsockopt,
.getsockopt = ipv6_getsockopt,