[NET]: socket timestamp 32 bit handler for 64 bit kernel

Get socket timestamp handler function that does not use the
ioctl32_hash_table.

Signed-off-by: Shaun Pereira <spereira@tusc.com.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/compat.h b/include/net/compat.h
index 290bab46d457c36dba511f49c69eda6d1998b998..8662b8f43df5d6dc009f068b4b127f6a86589b69 100644 (file)
--- a/include/net/compat.h
+++ b/include/net/compat.h
@@ -23,6 +23,9 @@ struct compat_cmsghdr {
        compat_int_t    cmsg_type;
 };
 
+struct sock;
+extern int compat_sock_get_timestamp(struct sock *, struct timeval __user *);
+
 #else /* defined(CONFIG_COMPAT) */
 #define compat_msghdr  msghdr          /* to avoid compiler warnings */
 #endif /* defined(CONFIG_COMPAT) */
@@ -34,7 +37,6 @@ extern asmlinkage long compat_sys_recvmsg(int,struct compat_msghdr __user *,unsi
 extern asmlinkage long compat_sys_getsockopt(int, int, int, char __user *, int __user *);
 extern int put_cmsg_compat(struct msghdr*, int, int, int, void *);
 
-struct sock;
 extern int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *, unsigned char *, int);
 
 #endif /* NET_COMPAT_H */

diff --git a/net/compat.c b/net/compat.c
index 13177a1a4b394359646d1211fe4be9cdefd40810..8fd37cd7b501364800f6219034f9774b41b20bd5 100644 (file)
--- a/net/compat.c
+++ b/net/compat.c
@@ -543,6 +543,25 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
        return sock_getsockopt(sock, level, optname, optval, optlen);
 }
 
+int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
+{
+       struct compat_timeval __user *ctv =
+                       (struct compat_timeval __user*) userstamp;
+       int err = -ENOENT;
+
+       if (!sock_flag(sk, SOCK_TIMESTAMP))
+               sock_enable_timestamp(sk);
+       if (sk->sk_stamp.tv_sec == -1)
+               return err;
+       if (sk->sk_stamp.tv_sec == 0)
+               do_gettimeofday(&sk->sk_stamp);
+       if (put_user(sk->sk_stamp.tv_sec, &ctv->tv_sec) ||
+                       put_user(sk->sk_stamp.tv_usec, &ctv->tv_usec))
+               err = -EFAULT;
+       return err;
+}
+EXPORT_SYMBOL(compat_sock_get_timestamp);
+
 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
                                char __user *optval, int __user *optlen)
 {