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linux-next/include/linux/bpfilter.h
Christoph Hellwig b03afaa82e bpfilter: switch bpfilter_ip_set_sockopt to sockptr_t
This is mostly to prepare for cleaning up the callers, as bpfilter by
design can't handle kernel pointers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-24 15:41:54 -07:00

26 lines
791 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_BPFILTER_H
#define _LINUX_BPFILTER_H
#include <uapi/linux/bpfilter.h>
#include <linux/usermode_driver.h>
#include <linux/sockptr.h>
struct sock;
int bpfilter_ip_set_sockopt(struct sock *sk, int optname, sockptr_t optval,
unsigned int optlen);
int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char __user *optval,
int __user *optlen);
void bpfilter_umh_cleanup(struct umd_info *info);
struct bpfilter_umh_ops {
struct umd_info info;
/* since ip_getsockopt() can run in parallel, serialize access to umh */
struct mutex lock;
int (*sockopt)(struct sock *sk, int optname, sockptr_t optval,
unsigned int optlen, bool is_set);
int (*start)(void);
};
extern struct bpfilter_umh_ops bpfilter_ops;
#endif