net/llc/llc_input.c

File Facts

System

Linux kernel

Corpus path

net/llc/llc_input.c

Extension

.c

Size

5772 bytes

Lines

225

Domain

Networking Core

Bucket

Sockets, Protocols, Packet Path, And Network Policy

Inferred role

Networking Core: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/netdevice.h
• linux/slab.h
• linux/export.h
• net/net_namespace.h
• net/llc.h
• net/llc_pdu.h
• net/llc_sap.h

Detected Declarations

• function llc_add_pack
• function llc_remove_pack
• function llc_set_station_handler
• function llc_pdu_type
• function llc_fixup_skb
• function connection
• export llc_add_pack
• export llc_remove_pack
• export llc_set_station_handler

Annotated Snippet

if (rcv) {
			struct sk_buff *cskb = skb_clone(skb, GFP_ATOMIC);
			if (cskb)
				rcv(cskb, dev, pt, orig_dev);
		}
		sap_handler(sap, skb);
	}
	llc_sap_put(sap);
out:
	return 0;
drop:
	kfree_skb(skb);
	goto out;
handle_station:
	sta_handler = READ_ONCE(llc_station_handler);
	if (!sta_handler)
		goto drop;
	sta_handler(skb);
	goto out;
}

EXPORT_SYMBOL(llc_add_pack);
EXPORT_SYMBOL(llc_remove_pack);
EXPORT_SYMBOL(llc_set_station_handler);

Annotation

• Immediate include surface: `linux/netdevice.h`, `linux/slab.h`, `linux/export.h`, `net/net_namespace.h`, `net/llc.h`, `net/llc_pdu.h`, `net/llc_sap.h`.
• Detected declarations: `function llc_add_pack`, `function llc_remove_pack`, `function llc_set_station_handler`, `function llc_pdu_type`, `function llc_fixup_skb`, `function connection`, `export llc_add_pack`, `export llc_remove_pack`, `export llc_set_station_handler`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• Implementation status: integration 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.