include/net/netns/nexthop.h

File Facts

System

Linux kernel

Corpus path

include/net/netns/nexthop.h

Extension

.h

Size

456 bytes

Lines

21

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/notifier.h
• linux/rbtree.h

Detected Declarations

• struct netns_nexthop

Annotated Snippet

struct netns_nexthop {
	struct rb_root		rb_root;	/* tree of nexthops by id */
	struct hlist_head	*devhash;	/* nexthops by device */

	unsigned int		seq;		/* protected by rtnl_mutex */
	u32			last_id_allocated;
	struct blocking_notifier_head notifier_chain;
};
#endif

Annotation

• Immediate include surface: `linux/notifier.h`, `linux/rbtree.h`.
• Detected declarations: `struct netns_nexthop`.
• 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.