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net: make ->{get,set}sockopt in proto_ops optional

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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>
This commit is contained in:
Christoph Hellwig 2020-07-17 08:23:31 +02:00 committed by David S. Miller
parent 3021ad5299
commit a44d9e7210
26 changed files with 11 additions and 73 deletions
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1
crypto/af_alg.c
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@ -335,7 +335,6 @@ static const struct proto_ops alg_proto_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
.sendmsg = sock_no_sendmsg,

4
crypto/algif_aead.c
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@ -361,11 +361,9 @@ static struct proto_ops algif_aead_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.accept = sock_no_accept,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = aead_sendmsg,
@ -454,11 +452,9 @@ static struct proto_ops algif_aead_ops_nokey = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.accept = sock_no_accept,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = aead_sendmsg_nokey,

4
crypto/algif_hash.c
View File

@ -279,10 +279,8 @@ static struct proto_ops algif_hash_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = hash_sendmsg,
@ -383,10 +381,8 @@ static struct proto_ops algif_hash_ops_nokey = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = hash_sendmsg_nokey,

2
crypto/algif_rng.c
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@ -101,11 +101,9 @@ static struct proto_ops algif_rng_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.accept = sock_no_accept,
.setsockopt = sock_no_setsockopt,
.sendmsg = sock_no_sendmsg,
.sendpage = sock_no_sendpage,

4
crypto/algif_skcipher.c
View File

@ -188,11 +188,9 @@ static struct proto_ops algif_skcipher_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.accept = sock_no_accept,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = skcipher_sendmsg,
@ -281,11 +279,9 @@ static struct proto_ops algif_skcipher_ops_nokey = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.accept = sock_no_accept,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = skcipher_sendmsg_nokey,

2
drivers/isdn/mISDN/socket.c
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@ -738,8 +738,6 @@ static const struct proto_ops base_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,

2
drivers/net/ppp/pppoe.c
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@ -1110,8 +1110,6 @@ static const struct proto_ops pppoe_ops = {
.poll = datagram_poll,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = pppoe_sendmsg,
.recvmsg = pppoe_recvmsg,
.mmap = sock_no_mmap,

2
drivers/net/ppp/pptp.c
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@ -618,8 +618,6 @@ static const struct proto_ops pptp_ops = {
.getname = pptp_getname,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = sock_no_sendmsg,
.recvmsg = sock_no_recvmsg,
.mmap = sock_no_mmap,

2
include/net/sock.h
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@ -1714,8 +1714,6 @@ int sock_no_getname(struct socket *, struct sockaddr *, int);
int sock_no_ioctl(struct socket *, unsigned int, unsigned long);
int sock_no_listen(struct socket *, int);
int sock_no_shutdown(struct socket *, int);
int sock_no_getsockopt(struct socket *, int , int, char __user *, int __user *);
int sock_no_setsockopt(struct socket *, int, int, char __user *, unsigned int);
int sock_no_sendmsg(struct socket *, struct msghdr *, size_t);
int sock_no_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t len);
int sock_no_recvmsg(struct socket *, struct msghdr *, size_t, int);

2
net/appletalk/ddp.c
View File

@ -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,

2
net/bluetooth/bnep/sock.c
View File

@ -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,

2
net/bluetooth/cmtp/sock.c
View File

@ -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,

2
net/bluetooth/hidp/sock.c
View File

@ -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,

2
net/caif/caif_socket.c
View File

@ -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,

2
net/can/bcm.c
View File

@ -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,

14
net/core/sock.c
View File

@ -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;

2
net/key/af_key.c
View File

@ -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,

2
net/nfc/llcp_sock.c
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@ -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,

4
net/nfc/rawsock.c
View File

@ -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,

2
net/packet/af_packet.c
View File

@ -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,

2
net/phonet/socket.c
View File

@ -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,

2
net/qrtr/qrtr.c
View File

@ -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,

9
net/smc/af_smc.c
View File

@ -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);
}

4
net/socket.c
View File

@ -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);

6
net/unix/af_unix.c
View File

@ -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,

2
net/vmw_vsock/af_vsock.c
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@ -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,