1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_BPFILTER_H
3 #define _LINUX_BPFILTER_H
4 
5 #include <uapi/linux/bpfilter.h>
6 #include <linux/usermode_driver.h>
7 #include <linux/sockptr.h>
8 
9 struct sock;
10 int bpfilter_ip_set_sockopt(struct sock *sk, int optname, sockptr_t optval,
11 			    unsigned int optlen);
12 int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char __user *optval,
13 			    int __user *optlen);
14 void bpfilter_umh_cleanup(struct umd_info *info);
15 
16 struct bpfilter_umh_ops {
17 	struct umd_info info;
18 	/* since ip_getsockopt() can run in parallel, serialize access to umh */
19 	struct mutex lock;
20 	int (*sockopt)(struct sock *sk, int optname, sockptr_t optval,
21 		       unsigned int optlen, bool is_set);
22 	int (*start)(void);
23 };
24 extern struct bpfilter_umh_ops bpfilter_ops;
25 #endif
26