include/uapi/linux/netfilter_ipv4/ipt_ECN.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/netfilter_ipv4/ipt_ECN.h

Extension

.h

Size

901 bytes

Lines

35

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/netfilter/xt_DSCP.h

Detected Declarations

• struct ipt_ECN_info

Annotated Snippet

struct ipt_ECN_info {
	__u8 operation;	/* bitset of operations */
	__u8 ip_ect;	/* ECT codepoint of IPv4 header, pre-shifted */
	union {
		struct {
			__u8 ece:1, cwr:1; /* TCP ECT bits */
		} tcp;
	} proto;
};

#endif /* _IPT_ECN_TARGET_H */

Annotation

• Immediate include surface: `linux/types.h`, `linux/netfilter/xt_DSCP.h`.
• Detected declarations: `struct ipt_ECN_info`.
• 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.