include/uapi/linux/netfilter/xt_physdev.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/netfilter/xt_physdev.h

Extension

.h

Size

568 bytes

Lines

25

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h
• linux/if.h

Detected Declarations

• struct xt_physdev_info

Annotated Snippet

struct xt_physdev_info {
	char physindev[IFNAMSIZ];
	char in_mask[IFNAMSIZ];
	char physoutdev[IFNAMSIZ];
	char out_mask[IFNAMSIZ];
	__u8 invert;
	__u8 bitmask;
};

#endif /* _UAPI_XT_PHYSDEV_H */

Annotation

• Immediate include surface: `linux/types.h`, `linux/if.h`.
• Detected declarations: `struct xt_physdev_info`.
• Atlas domain: Core OS / Core Kernel Interface.
• Implementation status: source implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.