# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
name: nlctrl
protocol: genetlink-legacy
uapi-header: linux/genetlink.h
doc: |
genetlink meta-family that exposes information about all genetlink
families registered in the kernel (including itself).
definitions:
-
name: op-flags
type: flags
enum-name:
entries:
- admin-perm
- cmd-cap-do
- cmd-cap-dump
- cmd-cap-haspol
- uns-admin-perm
-
name: attr-type
enum-name: netlink-attribute-type
type: enum
entries:
- invalid
- flag
- u8
- u16
- u32
- u64
- s8
- s16
- s32
- s64
- binary
- string
- nul-string
- nested
- nested-array
- bitfield32
- sint
- uint
attribute-sets:
-
name: ctrl-attrs
name-prefix: ctrl-attr-
attributes:
-
name: family-id
type: u16
-
name: family-name
type: string
-
name: version
type: u32
-
name: hdrsize
type: u32
-
name: maxattr
type: u32
-
name: ops
type: indexed-array
sub-type: nest
nested-attributes: op-attrs
-
name: mcast-groups
type: indexed-array
sub-type: nest
nested-attributes: mcast-group-attrs
-
name: policy
type: nest-type-value
type-value: [ policy-id, attr-id ]
nested-attributes: policy-attrs
-
name: op-policy
type: nest-type-value
type-value: [ op-id ]
nested-attributes: op-policy-attrs
-
name: op
type: u32
-
name: mcast-group-attrs
name-prefix: ctrl-attr-mcast-grp-
enum-name:
attributes:
-
name: name
type: string
-
name: id
type: u32
-
name: op-attrs
name-prefix: ctrl-attr-op-
enum-name:
attributes:
-
name: id
type: u32
-
name: flags
type: u32
enum: op-flags
enum-as-flags: true
-
name: policy-attrs
name-prefix: nl-policy-type-attr-
enum-name:
attributes:
-
name: type
type: u32
enum: attr-type
-
name: min-value-s
type: s64
-
name: max-value-s
type: s64
-
name: min-value-u
type: u64
-
name: max-value-u
type: u64
-
name: min-length
type: u32
-
name: max-length
type: u32
-
name: policy-idx
type: u32
-
name: policy-maxtype
type: u32
-
name: bitfield32-mask
type: u32
-
name: mask
type: u64
-
name: pad
type: pad
-
name: op-policy-attrs
name-prefix: ctrl-attr-policy-
enum-name:
attributes:
-
name: do
type: u32
-
name: dump
type: u32
operations:
enum-model: directional
name-prefix: ctrl-cmd-
list:
-
name: getfamily
doc: Get / dump genetlink families
attribute-set: ctrl-attrs
do:
request:
value: 3
attributes:
- family-name
reply: &all-attrs
value: 1
attributes:
- family-id
- family-name
- hdrsize
- maxattr
- mcast-groups
- ops
- version
dump:
reply: *all-attrs
-
name: getpolicy
doc: Get / dump genetlink policies
attribute-set: ctrl-attrs
dump:
request:
value: 10
attributes:
- family-name
- family-id
- op
reply:
value: 10
attributes:
- family-id
- op-policy
- policy
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