include/uapi/linux/netfilter/xt_cgroup.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/netfilter/xt_cgroup.h

Extension

.h

Size

755 bytes

Lines

42

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
• linux/limits.h

Detected Declarations

• struct xt_cgroup_info_v0
• struct xt_cgroup_info_v1
• struct xt_cgroup_info_v2

Annotated Snippet

struct xt_cgroup_info_v0 {
	__u32 id;
	__u32 invert;
};

struct xt_cgroup_info_v1 {
	__u8		has_path;
	__u8		has_classid;
	__u8		invert_path;
	__u8		invert_classid;
	char		path[PATH_MAX];
	__u32		classid;

	/* kernel internal data */
	void		*priv __attribute__((aligned(8)));
};

#define XT_CGROUP_PATH_MAX	512

struct xt_cgroup_info_v2 {
	__u8		has_path;
	__u8		has_classid;
	__u8		invert_path;
	__u8		invert_classid;
	union {
		char	path[XT_CGROUP_PATH_MAX];
		__u32	classid;
	};

	/* kernel internal data */
	void		*priv __attribute__((aligned(8)));
};

#endif /* _UAPI_XT_CGROUP_H */

Annotation

• Immediate include surface: `linux/types.h`, `linux/limits.h`.
• Detected declarations: `struct xt_cgroup_info_v0`, `struct xt_cgroup_info_v1`, `struct xt_cgroup_info_v2`.
• 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.