Documentation/netlink/specs/nftables.yaml

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

File Facts

System: Linux kernel
Corpus path: Documentation/netlink/specs/nftables.yaml
Extension: .yaml
Size: 45050 bytes
Lines: 2124
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: nftables
protocol: netlink-raw
protonum: 12

doc: >-
  Netfilter nftables configuration over netlink.

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: meta-keys
    type: enum
    entries:
      - len
      - protocol
      - priority
      - mark
      - iif
      - oif
      - iifname
      - oifname
      - iftype
      - oiftype
      - skuid
      - skgid
      - nftrace
      - rtclassid
      - secmark
      - nfproto
      - l4-proto
      - bri-iifname
      - bri-oifname
      - pkttype
      - cpu
      - iifgroup
      - oifgroup
      - cgroup
      - prandom
      - secpath
      - iifkind
      - oifkind
      - bri-iifpvid
      - bri-iifvproto
      - time-ns
      - time-day
      - time-hour
      - sdif
      - sdifname
      - bri-broute
  -
    name: bitwise-ops
    type: enum
    entries:
      -
        name: mask-xor  # aka bool (old name)

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.