bpf-netns.h (1448B)
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 <net/netns/bpf.h> 7#include <uapi/linux/bpf.h> 8 9static inline enum netns_bpf_attach_type 10to_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_NET 29int 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#else 37static 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#endif 61 62#endif /* _BPF_NETNS_H */