Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _BPF_NETNS_H
3#define _BPF_NETNS_H
4
5#include <linux/mutex.h>
6#include <uapi/linux/bpf.h>
7
8enum netns_bpf_attach_type {
9 NETNS_BPF_INVALID = -1,
10 NETNS_BPF_FLOW_DISSECTOR = 0,
11 NETNS_BPF_SK_LOOKUP,
12 MAX_NETNS_BPF_ATTACH_TYPE
13};
14
15static inline enum netns_bpf_attach_type
16to_netns_bpf_attach_type(enum bpf_attach_type attach_type)
17{
18 switch (attach_type) {
19 case BPF_FLOW_DISSECTOR:
20 return NETNS_BPF_FLOW_DISSECTOR;
21 case BPF_SK_LOOKUP:
22 return NETNS_BPF_SK_LOOKUP;
23 default:
24 return NETNS_BPF_INVALID;
25 }
26}
27
28/* Protects updates to netns_bpf */
29extern struct mutex netns_bpf_mutex;
30
31union bpf_attr;
32struct bpf_prog;
33
34#ifdef CONFIG_NET
35int netns_bpf_prog_query(const union bpf_attr *attr,
36 union bpf_attr __user *uattr);
37int netns_bpf_prog_attach(const union bpf_attr *attr,
38 struct bpf_prog *prog);
39int netns_bpf_prog_detach(const union bpf_attr *attr, enum bpf_prog_type ptype);
40int netns_bpf_link_create(const union bpf_attr *attr,
41 struct bpf_prog *prog);
42#else
43static inline int netns_bpf_prog_query(const union bpf_attr *attr,
44 union bpf_attr __user *uattr)
45{
46 return -EOPNOTSUPP;
47}
48
49static inline int netns_bpf_prog_attach(const union bpf_attr *attr,
50 struct bpf_prog *prog)
51{
52 return -EOPNOTSUPP;
53}
54
55static inline int netns_bpf_prog_detach(const union bpf_attr *attr,
56 enum bpf_prog_type ptype)
57{
58 return -EOPNOTSUPP;
59}
60
61static inline int netns_bpf_link_create(const union bpf_attr *attr,
62 struct bpf_prog *prog)
63{
64 return -EOPNOTSUPP;
65}
66#endif
67
68#endif /* _BPF_NETNS_H */