[PATCH 1/1] add SIOBKLGQ command to unix socket ioctl
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From: Roberto De Ioris <hidden>
Date: 2012-03-16 06:58:15
Subsystem:
networking [general], networking [sockets], networking [unix sockets], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Kuniyuki Iwashima, Willem de Bruijn, Linus Torvalds
Signed-off-by: Roberto De Ioris <redacted> --- include/linux/sockios.h | 1 + net/socket.c | 1 + net/unix/af_unix.c | 15 +++++++++++++++ 3 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/include/linux/sockios.h b/include/linux/sockios.h
index 7997a50..b179613 100644
--- a/include/linux/sockios.h
+++ b/include/linux/sockios.h@@ -23,6 +23,7 @@ /* Linux-specific socket ioctls */ #define SIOCINQ FIONREAD #define SIOCOUTQ TIOCOUTQ /* output queue size (not sent + not acked) */ +#define SIOBKLGQ 0x8908 /* Routing table calls. */ #define SIOCADDRT 0x890B /* add routing table entry */
diff --git a/net/socket.c b/net/socket.c
index 28a96af..d188f18 100644
--- a/net/socket.c
+++ b/net/socket.c@@ -3186,6 +3186,7 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, case SIOCSIFVLAN: case SIOCADDDLCI: case SIOCDELDLCI: + case SIOBKLGQ: return sock_ioctl(file, cmd, arg); case SIOCGIFFLAGS:
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 85d3bb7..d2797e9 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c@@ -2095,6 +2095,21 @@ static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) amount = unix_outq_len(sk); err = put_user(amount, (int __user *)arg); break; + case SIOBKLGQ: + if (sk->sk_state != TCP_LISTEN) { + err = -EINVAL; + break; + } + if (sk->sk_type != SOCK_STREAM && + sk->sk_type != SOCK_SEQPACKET) { + err = -EINVAL; + break; + } + spin_lock(&sk->sk_receive_queue.lock); + amount = (long) skb_queue_len(&sock->sk->sk_receive_queue); + spin_unlock(&sk->sk_receive_queue.lock); + err = put_user(amount, (int __user *)arg); + break; case SIOCINQ: amount = unix_inq_len(sk); if (amount < 0)
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1.7.9.1