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