net/ipv4/gre_offload.c

File Facts

System

Linux kernel

Corpus path

net/ipv4/gre_offload.c

Extension

.c

Size

7256 bytes

Lines

288

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/skbuff.h
• linux/init.h
• net/protocol.h
• net/gre.h
• net/gro.h
• net/gso.h

Detected Declarations

• function list_for_each_entry
• function gre_gro_complete
• function gre_offload_init
• module init gre_offload_init

Annotated Snippet

device_initcall(gre_offload_init);

Annotation

• Immediate include surface: `linux/skbuff.h`, `linux/init.h`, `net/protocol.h`, `net/gre.h`, `net/gro.h`, `net/gso.h`.
• Detected declarations: `function list_for_each_entry`, `function gre_gro_complete`, `function gre_offload_init`, `module init gre_offload_init`.
• 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.