mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-19 00:47:22 +07:00
99f3a064bc
There is SO_ATTACH_REUSEPORT_[CE]BPF but there is no DETACH. This patch adds SO_DETACH_REUSEPORT_BPF sockopt. The same sockopt can be used to undo both SO_ATTACH_REUSEPORT_[CE]BPF. reseport_detach_prog() is added and it is mostly a mirror of the existing reuseport_attach_prog(). The differences are, it does not call reuseport_alloc() and returns -ENOENT when there is no old prog. Cc: Craig Gallek <kraig@google.com> Signed-off-by: Martin KaFai Lau <kafai@fb.com> Reviewed-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/* 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 <linux/spinlock.h>
|
|
#include <net/sock.h>
|
|
|
|
extern spinlock_t reuseport_lock;
|
|
|
|
struct sock_reuseport {
|
|
struct rcu_head rcu;
|
|
|
|
u16 max_socks; /* length of socks */
|
|
u16 num_socks; /* elements in socks */
|
|
/* The last synq overflow event timestamp of this
|
|
* reuse->socks[] group.
|
|
*/
|
|
unsigned int synq_overflow_ts;
|
|
/* ID stays the same even after the size of socks[] grows. */
|
|
unsigned int reuseport_id;
|
|
bool bind_inany;
|
|
struct bpf_prog __rcu *prog; /* optional BPF sock selector */
|
|
struct sock *socks[0]; /* array of sock pointers */
|
|
};
|
|
|
|
extern int reuseport_alloc(struct sock *sk, bool bind_inany);
|
|
extern int reuseport_add_sock(struct sock *sk, struct sock *sk2,
|
|
bool bind_inany);
|
|
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 int reuseport_attach_prog(struct sock *sk, struct bpf_prog *prog);
|
|
extern int reuseport_detach_prog(struct sock *sk);
|
|
|
|
int reuseport_get_id(struct sock_reuseport *reuse);
|
|
|
|
#endif /* _SOCK_REUSEPORT_H */
|