net/6lowpan/nhc_ghc_ext_frag.c

File Facts

System

Linux kernel

Corpus path

net/6lowpan/nhc_ghc_ext_frag.c

Extension

.c

Size

513 bytes

Lines

18

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.

Dependency Surface

• nhc.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *	6LoWPAN Extension Header compression according to RFC7400
 */

#include "nhc.h"

#define LOWPAN_GHC_EXT_FRAG_ID_0	0xb4
#define LOWPAN_GHC_EXT_FRAG_MASK_0	0xfe

LOWPAN_NHC(ghc_ext_frag, "RFC7400 Fragmentation Extension Header",
	   NEXTHDR_FRAGMENT, 0, LOWPAN_GHC_EXT_FRAG_ID_0,
	   LOWPAN_GHC_EXT_FRAG_MASK_0, NULL, NULL);

module_lowpan_nhc(ghc_ext_frag);
MODULE_DESCRIPTION("6LoWPAN generic header fragmentation extension compression");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `nhc.h`.
• 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.