include/net/bpf_sk_storage.h

File Facts

System

Linux kernel

Corpus path

include/net/bpf_sk_storage.h

Extension

.h

Size

1780 bytes

Lines

64

Domain

Networking Core

Bucket

Sockets, Protocols, Packet Path, And Network Policy

Inferred role

Networking Core: implementation source

Status

source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

• Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/rculist.h
• linux/list.h
• linux/hash.h
• linux/types.h
• linux/spinlock.h
• linux/bpf.h
• net/sock.h
• uapi/linux/sock_diag.h
• uapi/linux/btf.h
• linux/bpf_local_storage.h

Detected Declarations

• struct sock
• struct bpf_local_storage_elem
• struct bpf_sk_storage_diag
• struct sk_buff
• struct nlattr
• function bpf_sk_storage_clone
• function bpf_sk_storage_diag_alloc
• function bpf_sk_storage_diag_free

Annotated Snippet

#ifndef _BPF_SK_STORAGE_H
#define _BPF_SK_STORAGE_H

#include <linux/rculist.h>
#include <linux/list.h>
#include <linux/hash.h>
#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/bpf.h>
#include <net/sock.h>
#include <uapi/linux/sock_diag.h>
#include <uapi/linux/btf.h>
#include <linux/bpf_local_storage.h>

struct sock;

void bpf_sk_storage_free(struct sock *sk);

extern const struct bpf_func_proto bpf_sk_storage_get_proto;
extern const struct bpf_func_proto bpf_sk_storage_delete_proto;
extern const struct bpf_func_proto bpf_sk_storage_get_tracing_proto;
extern const struct bpf_func_proto bpf_sk_storage_delete_tracing_proto;

struct bpf_local_storage_elem;
struct bpf_sk_storage_diag;
struct sk_buff;
struct nlattr;

#ifdef CONFIG_BPF_SYSCALL
int bpf_sk_storage_clone(const struct sock *sk, struct sock *newsk);
struct bpf_sk_storage_diag *
bpf_sk_storage_diag_alloc(const struct nlattr *nla_stgs);
void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag);
int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag,
			    struct sock *sk, struct sk_buff *skb,
			    int stg_array_type,
			    unsigned int *res_diag_size);
#else
static inline int bpf_sk_storage_clone(const struct sock *sk,
				       struct sock *newsk)
{
	return 0;
}
static inline struct bpf_sk_storage_diag *
bpf_sk_storage_diag_alloc(const struct nlattr *nla)
{
	return NULL;
}
static inline void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag)
{
}
static inline int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag,
					  struct sock *sk, struct sk_buff *skb,
					  int stg_array_type,
					  unsigned int *res_diag_size)
{
	return 0;
}
#endif

#endif /* _BPF_SK_STORAGE_H */

Annotation

• Immediate include surface: `linux/rculist.h`, `linux/list.h`, `linux/hash.h`, `linux/types.h`, `linux/spinlock.h`, `linux/bpf.h`, `net/sock.h`, `uapi/linux/sock_diag.h`.
• Detected declarations: `struct sock`, `struct bpf_local_storage_elem`, `struct bpf_sk_storage_diag`, `struct sk_buff`, `struct nlattr`, `function bpf_sk_storage_clone`, `function bpf_sk_storage_diag_alloc`, `function bpf_sk_storage_diag_free`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.