#include <uapi/linux/bpfilter.h>
struct sock;
-int bpfilter_ip_set_sockopt(struct sock *sk, int optname, char *optval,
+int bpfilter_ip_set_sockopt(struct sock *sk, int optname, char __user *optval,
unsigned int optlen);
-int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char *optval,
- int *optlen);
+int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char __user *optval,
+ int __user *optlen);
extern int (*bpfilter_process_sockopt)(struct sock *sk, int optname,
char __user *optval,
unsigned int optlen, bool is_set);