| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _BPF_NETNS_H |
| #define _BPF_NETNS_H |
| |
| #include <linux/mutex.h> |
| #include <net/netns/bpf.h> |
| #include <uapi/linux/bpf.h> |
| |
| 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 */ |