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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BPF_NETNS_H
#define _BPF_NETNS_H
#include <linux/mutex.h>
#include <uapi/linux/bpf.h>
enum netns_bpf_attach_type {
NETNS_BPF_INVALID = -1,
NETNS_BPF_FLOW_DISSECTOR = 0,
NETNS_BPF_SK_LOOKUP,
MAX_NETNS_BPF_ATTACH_TYPE
};
static inline enum netns_bpf_attach_type
to_netns_bpf_attach_type(enum bpf_attach_type attach_type)
{
switch (attach_type) {
case BPF_FLOW_DISSECTOR:
return NETNS_BPF_FLOW_DISSECTOR;
case BPF_SK_LOOKUP:
return NETNS_BPF_SK_LOOKUP;
default:
return NETNS_BPF_INVALID;
}
}
/* Protects updates to netns_bpf */
extern struct mutex netns_bpf_mutex;
union bpf_attr;
struct bpf_prog;
#ifdef CONFIG_NET
int netns_bpf_prog_query(const union bpf_attr *attr,
union bpf_attr __user *uattr);
int netns_bpf_prog_attach(const union bpf_attr *attr,
struct bpf_prog *prog);
int netns_bpf_prog_detach(const union bpf_attr *attr, enum bpf_prog_type ptype);
int netns_bpf_link_create(const union bpf_attr *attr,
struct bpf_prog *prog);
#else
static inline int netns_bpf_prog_query(const union bpf_attr *attr,
union bpf_attr __user *uattr)
{
return -EOPNOTSUPP;
}
static inline int netns_bpf_prog_attach(const union bpf_attr *attr,
struct bpf_prog *prog)
{
return -EOPNOTSUPP;
}
static inline int netns_bpf_prog_detach(const union bpf_attr *attr,
enum bpf_prog_type ptype)
{
return -EOPNOTSUPP;
}
static inline int netns_bpf_link_create(const union bpf_attr *attr,
struct bpf_prog *prog)
{
return -EOPNOTSUPP;
}
#endif
#endif /* _BPF_NETNS_H */