63 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _BPF_NETNS_H3#define _BPF_NETNS_H4 5#include <linux/mutex.h>6#include <net/netns/bpf.h>7#include <uapi/linux/bpf.h>8 9static inline enum netns_bpf_attach_type10to_netns_bpf_attach_type(enum bpf_attach_type attach_type)11{12 switch (attach_type) {13 case BPF_FLOW_DISSECTOR:14 return NETNS_BPF_FLOW_DISSECTOR;15 case BPF_SK_LOOKUP:16 return NETNS_BPF_SK_LOOKUP;17 default:18 return NETNS_BPF_INVALID;19 }20}21 22/* Protects updates to netns_bpf */23extern struct mutex netns_bpf_mutex;24 25union bpf_attr;26struct bpf_prog;27 28#ifdef CONFIG_NET29int netns_bpf_prog_query(const union bpf_attr *attr,30 union bpf_attr __user *uattr);31int netns_bpf_prog_attach(const union bpf_attr *attr,32 struct bpf_prog *prog);33int netns_bpf_prog_detach(const union bpf_attr *attr, enum bpf_prog_type ptype);34int netns_bpf_link_create(const union bpf_attr *attr,35 struct bpf_prog *prog);36#else37static inline int netns_bpf_prog_query(const union bpf_attr *attr,38 union bpf_attr __user *uattr)39{40 return -EOPNOTSUPP;41}42 43static inline int netns_bpf_prog_attach(const union bpf_attr *attr,44 struct bpf_prog *prog)45{46 return -EOPNOTSUPP;47}48 49static inline int netns_bpf_prog_detach(const union bpf_attr *attr,50 enum bpf_prog_type ptype)51{52 return -EOPNOTSUPP;53}54 55static inline int netns_bpf_link_create(const union bpf_attr *attr,56 struct bpf_prog *prog)57{58 return -EOPNOTSUPP;59}60#endif61 62#endif /* _BPF_NETNS_H */63