net: make ->{get,set}sockopt in proto_ops optional
Just check for a NULL method instead of wiring up
sock_no_{get,set}sockopt.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 15787e8..1d48708 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1917,8 +1917,6 @@ static const struct proto_ops atalk_dgram_ops = {
#endif
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = atalk_sendmsg,
.recvmsg = atalk_recvmsg,
.mmap = sock_no_mmap,
diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c
index cfd83c5..d515571 100644
--- a/net/bluetooth/bnep/sock.c
+++ b/net/bluetooth/bnep/sock.c
@@ -182,8 +182,6 @@ static const struct proto_ops bnep_sock_ops = {
.recvmsg = sock_no_recvmsg,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.connect = sock_no_connect,
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
diff --git a/net/bluetooth/cmtp/sock.c b/net/bluetooth/cmtp/sock.c
index defdd48..96d49d9 100644
--- a/net/bluetooth/cmtp/sock.c
+++ b/net/bluetooth/cmtp/sock.c
@@ -185,8 +185,6 @@ static const struct proto_ops cmtp_sock_ops = {
.recvmsg = sock_no_recvmsg,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.connect = sock_no_connect,
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c
index 03be6a4..595fb3c 100644
--- a/net/bluetooth/hidp/sock.c
+++ b/net/bluetooth/hidp/sock.c
@@ -233,8 +233,6 @@ static const struct proto_ops hidp_sock_ops = {
.recvmsg = sock_no_recvmsg,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.connect = sock_no_connect,
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index ef14da5..b94ecd9 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -981,7 +981,6 @@ static const struct proto_ops caif_seqpacket_ops = {
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = caif_seqpkt_sendmsg,
.recvmsg = caif_seqpkt_recvmsg,
.mmap = sock_no_mmap,
@@ -1002,7 +1001,6 @@ static const struct proto_ops caif_stream_ops = {
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = caif_stream_sendmsg,
.recvmsg = caif_stream_recvmsg,
.mmap = sock_no_mmap,
diff --git a/net/can/bcm.c b/net/can/bcm.c
index c96fa0f..d14ea12 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -1648,8 +1648,6 @@ static const struct proto_ops bcm_ops = {
.gettstamp = sock_gettstamp,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = bcm_sendmsg,
.recvmsg = bcm_recvmsg,
.mmap = sock_no_mmap,
diff --git a/net/core/sock.c b/net/core/sock.c
index 48655d5..d828bfe 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2783,20 +2783,6 @@ int sock_no_shutdown(struct socket *sock, int how)
}
EXPORT_SYMBOL(sock_no_shutdown);
-int sock_no_setsockopt(struct socket *sock, int level, int optname,
- char __user *optval, unsigned int optlen)
-{
- return -EOPNOTSUPP;
-}
-EXPORT_SYMBOL(sock_no_setsockopt);
-
-int sock_no_getsockopt(struct socket *sock, int level, int optname,
- char __user *optval, int __user *optlen)
-{
- return -EOPNOTSUPP;
-}
-EXPORT_SYMBOL(sock_no_getsockopt);
-
int sock_no_sendmsg(struct socket *sock, struct msghdr *m, size_t len)
{
return -EOPNOTSUPP;
diff --git a/net/key/af_key.c b/net/key/af_key.c
index b67ed3a..f13626c 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -3734,8 +3734,6 @@ static const struct proto_ops pfkey_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 2860441..6da1e23 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -921,8 +921,6 @@ static const struct proto_ops llcp_rawsock_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = sock_no_sendmsg,
.recvmsg = llcp_sock_recvmsg,
.mmap = sock_no_mmap,
diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c
index ba5ffd3..b2061b6 100644
--- a/net/nfc/rawsock.c
+++ b/net/nfc/rawsock.c
@@ -276,8 +276,6 @@ static const struct proto_ops rawsock_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = rawsock_sendmsg,
.recvmsg = rawsock_recvmsg,
.mmap = sock_no_mmap,
@@ -296,8 +294,6 @@ static const struct proto_ops rawsock_raw_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = sock_no_sendmsg,
.recvmsg = rawsock_recvmsg,
.mmap = sock_no_mmap,
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 35aee9e..c240fb5 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4503,8 +4503,6 @@ static const struct proto_ops packet_ops_spkt = {
.gettstamp = sock_gettstamp,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = packet_sendmsg_spkt,
.recvmsg = packet_recvmsg,
.mmap = sock_no_mmap,
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index 87c60f8..2599235 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -439,8 +439,6 @@ const struct proto_ops phonet_dgram_ops = {
.ioctl = pn_socket_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = pn_socket_sendmsg,
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,
diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c
index 24a8c3c..0cb4adf 100644
--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -1208,8 +1208,6 @@ static const struct proto_ops qrtr_proto_ops = {
.gettstamp = sock_gettstamp,
.poll = datagram_poll,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.release = qrtr_release,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 90332154..9711c9e 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -1742,8 +1742,11 @@ static int smc_setsockopt(struct socket *sock, int level, int optname,
/* generic setsockopts reaching us here always apply to the
* CLC socket
*/
- rc = smc->clcsock->ops->setsockopt(smc->clcsock, level, optname,
- optval, optlen);
+ if (unlikely(!smc->clcsock->ops->setsockopt))
+ rc = -EOPNOTSUPP;
+ else
+ rc = smc->clcsock->ops->setsockopt(smc->clcsock, level, optname,
+ optval, optlen);
if (smc->clcsock->sk->sk_err) {
sk->sk_err = smc->clcsock->sk->sk_err;
sk->sk_error_report(sk);
@@ -1808,6 +1811,8 @@ static int smc_getsockopt(struct socket *sock, int level, int optname,
smc = smc_sk(sock->sk);
/* socket options apply to the CLC socket */
+ if (unlikely(!smc->clcsock->ops->getsockopt))
+ return -EOPNOTSUPP;
return smc->clcsock->ops->getsockopt(smc->clcsock, level, optname,
optval, optlen);
}
diff --git a/net/socket.c b/net/socket.c
index dec3459..9384656 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -2131,6 +2131,8 @@ int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
if (level == SOL_SOCKET && !sock_use_custom_sol_socket(sock))
err = sock_setsockopt(sock, level, optname, optval, optlen);
+ else if (unlikely(!sock->ops->setsockopt))
+ err = -EOPNOTSUPP;
else
err = sock->ops->setsockopt(sock, level, optname, optval,
optlen);
@@ -2175,6 +2177,8 @@ int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
if (level == SOL_SOCKET)
err = sock_getsockopt(sock, level, optname, optval, optlen);
+ else if (unlikely(!sock->ops->getsockopt))
+ err = -EOPNOTSUPP;
else
err = sock->ops->getsockopt(sock, level, optname, optval,
optlen);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 3385a7a..181ea6f 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -714,8 +714,6 @@ static const struct proto_ops unix_stream_ops = {
#endif
.listen = unix_listen,
.shutdown = unix_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = unix_stream_sendmsg,
.recvmsg = unix_stream_recvmsg,
.mmap = sock_no_mmap,
@@ -741,8 +739,6 @@ static const struct proto_ops unix_dgram_ops = {
#endif
.listen = sock_no_listen,
.shutdown = unix_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = unix_dgram_sendmsg,
.recvmsg = unix_dgram_recvmsg,
.mmap = sock_no_mmap,
@@ -767,8 +763,6 @@ static const struct proto_ops unix_seqpacket_ops = {
#endif
.listen = unix_listen,
.shutdown = unix_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = unix_seqpacket_sendmsg,
.recvmsg = unix_seqpacket_recvmsg,
.mmap = sock_no_mmap,
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 626bf904..df204c6 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1202,8 +1202,6 @@ static const struct proto_ops vsock_dgram_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = vsock_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = vsock_dgram_sendmsg,
.recvmsg = vsock_dgram_recvmsg,
.mmap = sock_no_mmap,
