Documentation/netlink/specs/conntrack.yaml

Source file repositories/reference/linux-study-clean/Documentation/netlink/specs/conntrack.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/netlink/specs/conntrack.yaml
Extension: .yaml
Size: 13324 bytes
Lines: 643
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: configuration, schema, or hardware description
Status: atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
---
name: conntrack
protocol: netlink-raw
protonum: 12

doc: >-
  Netfilter connection tracking subsystem over nfnetlink

definitions:
  -
    name: nfgenmsg
    type: struct
    members:
      -
        name: nfgen-family
        type: u8
      -
        name: version
        type: u8
      -
        name: res-id
        byte-order: big-endian
        type: u16
  -
    name: nf-ct-tcp-flags-mask
    type: struct
    members:
      -
        name: flags
        type: u8
        enum: nf-ct-tcp-flags
        enum-as-flags: true
      -
        name: mask
        type: u8
        enum: nf-ct-tcp-flags
        enum-as-flags: true
  -
    name: nf-ct-tcp-flags
    type: flags
    entries:
      - window-scale
      - sack-perm
      - close-init
      - be-liberal
      - unacked
      - maxack
      - challenge-ack
      - simultaneous-open
  -
    name: nf-ct-tcp-state
    type: enum
    entries:
      - none
      - syn-sent
      - syn-recv
      - established
      - fin-wait
      - close-wait
      - last-ack
      - time-wait
      - close
      - syn-sent2
      - max
      - ignore
      - retrans
      - unack
      - timeout-max
  -

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

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.