include/net/ipcomp.h

File Facts

System

Linux kernel

Corpus path

include/net/ipcomp.h

Extension

.h

Size

561 bytes

Lines

22

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/skbuff.h

Detected Declarations

• struct ip_comp_hdr
• struct netlink_ext_ack
• struct xfrm_state

Annotated Snippet

#ifndef _NET_IPCOMP_H
#define _NET_IPCOMP_H

#include <linux/skbuff.h>

struct ip_comp_hdr;
struct netlink_ext_ack;
struct xfrm_state;

int ipcomp_input(struct xfrm_state *x, struct sk_buff *skb);
int ipcomp_output(struct xfrm_state *x, struct sk_buff *skb);
void ipcomp_destroy(struct xfrm_state *x);
int ipcomp_init_state(struct xfrm_state *x, struct netlink_ext_ack *extack);

static inline struct ip_comp_hdr *ip_comp_hdr(const struct sk_buff *skb)
{
	return (struct ip_comp_hdr *)skb_transport_header(skb);
}

#endif

Annotation

• Immediate include surface: `linux/skbuff.h`.
• Detected declarations: `struct ip_comp_hdr`, `struct netlink_ext_ack`, `struct xfrm_state`.
• 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.