include/net/datalink.h

File Facts

System

Linux kernel

Corpus path

include/net/datalink.h

Extension

.h

Size

590 bytes

Lines

27

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/list.h

Detected Declarations

• struct llc_sap
• struct net_device
• struct packet_type
• struct sk_buff
• struct datalink_proto

Annotated Snippet

struct datalink_proto {
        unsigned char   type[8];

	struct llc_sap   *sap;

        unsigned short  header_length;

        int     (*rcvfunc)(struct sk_buff *, struct net_device *,
                                struct packet_type *, struct net_device *);
	int     (*request)(struct datalink_proto *, struct sk_buff *,
			   const unsigned char *);
	struct list_head node;
};

#endif

Annotation

• Immediate include surface: `linux/list.h`.
• Detected declarations: `struct llc_sap`, `struct net_device`, `struct packet_type`, `struct sk_buff`, `struct datalink_proto`.
• 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.