include/uapi/linux/netfilter_ipv6/ip6t_opts.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/netfilter_ipv6/ip6t_opts.h

Extension

.h

Size

649 bytes

Lines

26

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct ip6t_opts

Annotated Snippet

struct ip6t_opts {
	__u32 hdrlen;			/* Header Length */
	__u8 flags;				/*  */
	__u8 invflags;			/* Inverse flags */
	__u16 opts[IP6T_OPTS_OPTSNR];	/* opts */
	__u8 optsnr;			/* Nr of OPts */
};

#define IP6T_OPTS_LEN 		0x01
#define IP6T_OPTS_OPTS 		0x02
#define IP6T_OPTS_NSTRICT	0x04

/* Values for "invflags" field in struct ip6t_rt. */
#define IP6T_OPTS_INV_LEN	0x01	/* Invert the sense of length. */
#define IP6T_OPTS_INV_MASK	0x01	/* All possible flags. */

#endif /*_IP6T_OPTS_H*/

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct ip6t_opts`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.