[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/dccp.h b/net/dccp/dccp.h
index 34e70fb..47de172 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -192,6 +192,14 @@
char __user *optval, int __user *optlen);
extern int dccp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen);
+#ifdef CONFIG_COMPAT
+extern int compat_dccp_getsockopt(struct sock *sk,
+ int level, int optname,
+ char __user *optval, int __user *optlen);
+extern int compat_dccp_setsockopt(struct sock *sk,
+ int level, int optname,
+ char __user *optval, int optlen);
+#endif
extern int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg);
extern int dccp_sendmsg(struct kiocb *iocb, struct sock *sk,
struct msghdr *msg, size_t size);
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 80d450b..8a33c84 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -994,6 +994,10 @@
.net_header_len = sizeof(struct iphdr),
.setsockopt = ip_setsockopt,
.getsockopt = ip_getsockopt,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_ip_setsockopt,
+ .compat_getsockopt = compat_ip_getsockopt,
+#endif
.addr2sockaddr = inet_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in),
};
@@ -1040,6 +1044,10 @@
.init = dccp_v4_init_sock,
.setsockopt = dccp_setsockopt,
.getsockopt = dccp_getsockopt,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_dccp_setsockopt,
+ .compat_getsockopt = compat_dccp_getsockopt,
+#endif
.sendmsg = dccp_sendmsg,
.recvmsg = dccp_recvmsg,
.backlog_rcv = dccp_v4_do_rcv,
@@ -1079,6 +1087,10 @@
.shutdown = inet_shutdown,
.setsockopt = sock_common_setsockopt,
.getsockopt = sock_common_getsockopt,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_sock_common_setsockopt,
+ .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
.sendmsg = inet_sendmsg,
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 7c8233f..89106c7 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -1114,6 +1114,10 @@
.net_header_len = sizeof(struct ipv6hdr),
.setsockopt = ipv6_setsockopt,
.getsockopt = ipv6_getsockopt,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_ipv6_setsockopt,
+ .compat_getsockopt = compat_ipv6_getsockopt,
+#endif
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6)
};
@@ -1130,6 +1134,10 @@
.net_header_len = sizeof(struct iphdr),
.setsockopt = ipv6_setsockopt,
.getsockopt = ipv6_getsockopt,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_ipv6_setsockopt,
+ .compat_getsockopt = compat_ipv6_getsockopt,
+#endif
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6)
};
@@ -1167,6 +1175,10 @@
.init = dccp_v6_init_sock,
.setsockopt = dccp_setsockopt,
.getsockopt = dccp_getsockopt,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_dccp_setsockopt,
+ .compat_getsockopt = compat_dccp_getsockopt,
+#endif
.sendmsg = dccp_sendmsg,
.recvmsg = dccp_recvmsg,
.backlog_rcv = dccp_v6_do_rcv,
@@ -1204,6 +1216,10 @@
.shutdown = inet_shutdown,
.setsockopt = sock_common_setsockopt,
.getsockopt = sock_common_getsockopt,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_sock_common_setsockopt,
+ .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
.sendmsg = inet_sendmsg,
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,
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)
{