[NET]: {get|set}sockopt compatibility layer
This patch extends {get|set}sockopt compatibility layer in order to
move protocol specific parts to their place and avoid huge universal
net/compat.c file in the future.
Signed-off-by: Dmitry Mishin <dim@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index baccaf3..59b2149 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -455,18 +455,13 @@
goto out;
}
-int dccp_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
+static int do_dccp_setsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int optlen)
{
struct dccp_sock *dp;
int err;
int val;
- if (level != SOL_DCCP)
- return inet_csk(sk)->icsk_af_ops->setsockopt(sk, level,
- optname, optval,
- optlen);
-
if (optlen < sizeof(int))
return -EINVAL;
@@ -512,8 +507,34 @@
return err;
}
+int dccp_setsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int optlen)
+{
+ if (level != SOL_DCCP)
+ return inet_csk(sk)->icsk_af_ops->setsockopt(sk, level,
+ optname, optval,
+ optlen);
+ return do_dccp_setsockopt(sk, level, optname, optval, optlen);
+}
EXPORT_SYMBOL_GPL(dccp_setsockopt);
+#ifdef CONFIG_COMPAT
+int compat_dccp_setsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int optlen)
+{
+ if (level != SOL_DCCP) {
+ if (inet_csk(sk)->icsk_af_ops->compat_setsockopt)
+ return inet_csk(sk)->icsk_af_ops->compat_setsockopt(sk,
+ level, optname, optval, optlen);
+ else
+ return inet_csk(sk)->icsk_af_ops->setsockopt(sk,
+ level, optname, optval, optlen);
+ }
+ return do_dccp_setsockopt(sk, level, optname, optval, optlen);
+}
+EXPORT_SYMBOL_GPL(compat_dccp_setsockopt);
+#endif
+
static int dccp_getsockopt_service(struct sock *sk, int len,
__be32 __user *optval,
int __user *optlen)
@@ -545,16 +566,12 @@
return err;
}
-int dccp_getsockopt(struct sock *sk, int level, int optname,
+static int do_dccp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
struct dccp_sock *dp;
int val, len;
- if (level != SOL_DCCP)
- return inet_csk(sk)->icsk_af_ops->getsockopt(sk, level,
- optname, optval,
- optlen);
if (get_user(len, optlen))
return -EFAULT;
@@ -587,8 +604,34 @@
return 0;
}
+int dccp_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ if (level != SOL_DCCP)
+ return inet_csk(sk)->icsk_af_ops->getsockopt(sk, level,
+ optname, optval,
+ optlen);
+ return do_dccp_getsockopt(sk, level, optname, optval, optlen);
+}
EXPORT_SYMBOL_GPL(dccp_getsockopt);
+#ifdef CONFIG_COMPAT
+int compat_dccp_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ if (level != SOL_DCCP) {
+ if (inet_csk(sk)->icsk_af_ops->compat_setsockopt)
+ return inet_csk(sk)->icsk_af_ops->compat_getsockopt(sk,
+ level, optname, optval, optlen);
+ else
+ return inet_csk(sk)->icsk_af_ops->getsockopt(sk,
+ level, optname, optval, optlen);
+ }
+ return do_dccp_getsockopt(sk, level, optname, optval, optlen);
+}
+EXPORT_SYMBOL_GPL(compat_dccp_getsockopt);
+#endif
+
int dccp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
size_t len)
{