include/uapi/linux/netfilter/nfnetlink_conntrack.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/netfilter/nfnetlink_conntrack.h

Extension

.h

Size

6208 bytes

Lines

293

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.

Dependency Surface

• linux/netfilter/nfnetlink.h

Detected Declarations

• enum cntl_msg_types
• enum ctnl_exp_msg_types
• enum ctattr_type
• enum ctattr_tuple
• enum ctattr_ip
• enum ctattr_l4proto
• enum ctattr_protoinfo
• enum ctattr_protoinfo_tcp
• enum ctattr_protoinfo_dccp
• enum ctattr_protoinfo_sctp
• enum ctattr_counters
• enum ctattr_tstamp
• enum ctattr_nat
• enum ctattr_protonat
• enum ctattr_seqadj
• enum ctattr_natseq
• enum ctattr_synproxy
• enum ctattr_expect
• enum ctattr_expect_nat
• enum ctattr_help
• enum ctattr_secctx
• enum ctattr_stats_cpu
• enum ctattr_stats_global
• enum ctattr_expect_stats
• enum ctattr_filter

Annotated Snippet

#ifndef _IPCONNTRACK_NETLINK_H
#define _IPCONNTRACK_NETLINK_H
#include <linux/netfilter/nfnetlink.h>

enum cntl_msg_types {
	IPCTNL_MSG_CT_NEW,
	IPCTNL_MSG_CT_GET,
	IPCTNL_MSG_CT_DELETE,
	IPCTNL_MSG_CT_GET_CTRZERO,
	IPCTNL_MSG_CT_GET_STATS_CPU,
	IPCTNL_MSG_CT_GET_STATS,
	IPCTNL_MSG_CT_GET_DYING,
	IPCTNL_MSG_CT_GET_UNCONFIRMED,

	IPCTNL_MSG_MAX
};

enum ctnl_exp_msg_types {
	IPCTNL_MSG_EXP_NEW,
	IPCTNL_MSG_EXP_GET,
	IPCTNL_MSG_EXP_DELETE,
	IPCTNL_MSG_EXP_GET_STATS_CPU,

	IPCTNL_MSG_EXP_MAX
};


enum ctattr_type {
	CTA_UNSPEC,
	CTA_TUPLE_ORIG,
	CTA_TUPLE_REPLY,
	CTA_STATUS,
	CTA_PROTOINFO,
	CTA_HELP,
	CTA_NAT_SRC,
#define CTA_NAT	CTA_NAT_SRC	/* backwards compatibility */
	CTA_TIMEOUT,
	CTA_MARK,
	CTA_COUNTERS_ORIG,
	CTA_COUNTERS_REPLY,
	CTA_USE,
	CTA_ID,
	CTA_NAT_DST,
	CTA_TUPLE_MASTER,
	CTA_SEQ_ADJ_ORIG,
	CTA_NAT_SEQ_ADJ_ORIG	= CTA_SEQ_ADJ_ORIG,
	CTA_SEQ_ADJ_REPLY,
	CTA_NAT_SEQ_ADJ_REPLY	= CTA_SEQ_ADJ_REPLY,
	CTA_SECMARK,		/* obsolete */
	CTA_ZONE,
	CTA_SECCTX,
	CTA_TIMESTAMP,
	CTA_MARK_MASK,
	CTA_LABELS,
	CTA_LABELS_MASK,
	CTA_SYNPROXY,
	CTA_FILTER,
	CTA_STATUS_MASK,
	CTA_TIMESTAMP_EVENT,
	__CTA_MAX
};
#define CTA_MAX (__CTA_MAX - 1)

enum ctattr_tuple {
	CTA_TUPLE_UNSPEC,
	CTA_TUPLE_IP,
	CTA_TUPLE_PROTO,
	CTA_TUPLE_ZONE,
	__CTA_TUPLE_MAX
};
#define CTA_TUPLE_MAX (__CTA_TUPLE_MAX - 1)

enum ctattr_ip {
	CTA_IP_UNSPEC,
	CTA_IP_V4_SRC,
	CTA_IP_V4_DST,
	CTA_IP_V6_SRC,
	CTA_IP_V6_DST,
	__CTA_IP_MAX
};
#define CTA_IP_MAX (__CTA_IP_MAX - 1)

enum ctattr_l4proto {
	CTA_PROTO_UNSPEC,
	CTA_PROTO_NUM,
	CTA_PROTO_SRC_PORT,
	CTA_PROTO_DST_PORT,
	CTA_PROTO_ICMP_ID,
	CTA_PROTO_ICMP_TYPE,
	CTA_PROTO_ICMP_CODE,

Annotation

• Immediate include surface: `linux/netfilter/nfnetlink.h`.
• Detected declarations: `enum cntl_msg_types`, `enum ctnl_exp_msg_types`, `enum ctattr_type`, `enum ctattr_tuple`, `enum ctattr_ip`, `enum ctattr_l4proto`, `enum ctattr_protoinfo`, `enum ctattr_protoinfo_tcp`, `enum ctattr_protoinfo_dccp`, `enum ctattr_protoinfo_sctp`.
• 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.