[mirror_ubuntu-bionic-kernel.git] / include / net / sock_reuseport.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SOCK_REUSEPORT_H
#define _SOCK_REUSEPORT_H

#include <linux/filter.h>
#include <linux/skbuff.h>
#include <linux/types.h>
#include <net/sock.h>

struct sock_reuseport {
	struct rcu_head		rcu;

	u16			max_socks;	/* length of socks */
	u16			num_socks;	/* elements in socks */
	struct bpf_prog __rcu	*prog;		/* optional BPF sock selector */
	struct sock		*socks[0];	/* array of sock pointers */
};

extern int reuseport_alloc(struct sock *sk);
extern int reuseport_add_sock(struct sock *sk, struct sock *sk2);
extern void reuseport_detach_sock(struct sock *sk);
extern struct sock *reuseport_select_sock(struct sock *sk,
					  u32 hash,
					  struct sk_buff *skb,
					  int hdr_len);
extern struct bpf_prog *reuseport_attach_prog(struct sock *sk,
					      struct bpf_prog *prog);

#endif  /* _SOCK_REUSEPORT_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
ef456144 CG	2	#ifndef _SOCK_REUSEPORT_H
	3	#define _SOCK_REUSEPORT_H
	4
538950a1 CG	5	#include <linux/filter.h>
538950a1 CG	6	#include <linux/skbuff.h>
ef456144 CG	7	#include <linux/types.h>
	8	#include <net/sock.h>
	9
	10	struct sock_reuseport {
	11	struct rcu_head rcu;
	12
	13	u16 max_socks; /* length of socks */
	14	u16 num_socks; /* elements in socks */
538950a1	15	struct bpf_prog __rcu prog; / optional BPF sock selector */
ef456144 CG	16	struct sock socks[0]; / array of sock pointers */
	17	};
	18
	19	extern int reuseport_alloc(struct sock *sk);
b4ace4f1	20	extern int reuseport_add_sock(struct sock sk, struct sock sk2);
ef456144	21	extern void reuseport_detach_sock(struct sock *sk);
538950a1 CG	22	extern struct sock reuseport_select_sock(struct sock sk,
	23	u32 hash,
	24	struct sk_buff *skb,
	25	int hdr_len);
	26	extern struct bpf_prog reuseport_attach_prog(struct sock sk,
	27	struct bpf_prog *prog);
ef456144 CG	28
ef456144 CG	29	#endif /* _SOCK_REUSEPORT_H */