include/uapi/linux/netfilter/xt_esp.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/netfilter/xt_esp.h

Extension

.h

Size

418 bytes

Lines

17

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 xt_esp

Annotated Snippet

struct xt_esp {
	__u32 spis[2];	/* Security Parameter Index */
	__u8  invflags;	/* Inverse flags */
};

/* Values for "invflags" field in struct xt_esp. */
#define XT_ESP_INV_SPI	0x01	/* Invert the sense of spi. */
#define XT_ESP_INV_MASK	0x01	/* All possible flags. */

#endif /*_XT_ESP_H*/

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct xt_esp`.
• 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.