Family `nlctrl` netlink specification ¶

Contents

Family nlctrl netlink specification

Summary ¶

genetlink meta-family that exposes information about all genetlink families registered in the kernel (including itself).

Operations ¶

getfamily ¶

Get / dump genetlink families

attribute-set

do

request

attributes: [family-name]

reply

attributes: [family-id, family-name, hdrsize, maxattr, mcast-groups, ops, version]

dump

reply

attributes: [family-id, family-name, hdrsize, maxattr, mcast-groups, ops, version]

getpolicy ¶

Get / dump genetlink policies

attribute-set

dump

request

attributes: [family-name, family-id, op]

reply

attributes: [family-id, op-policy, policy]

Definitions ¶

op-flags ¶

type

flags

enum-name

None

entries

admin-perm
cmd-cap-do
cmd-cap-dump
cmd-cap-haspol
uns-admin-perm

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 ¶

ctrl-attrs ¶

family-id (`u16`)¶

family-name (`string`)¶

version (`u32`)¶

hdrsize (`u32`)¶

maxattr (`u32`)¶

ops (`indexed-array`)¶

sub-type: nest
nested-attributes: op-attrs

mcast-groups (`indexed-array`)¶

sub-type: nest
nested-attributes: mcast-group-attrs

policy (`nest-type-value`)¶

type-value: [‘policy-id’, ‘attr-id’]
nested-attributes: policy-attrs

op-policy (`nest-type-value`)¶

type-value: [‘op-id’]
nested-attributes: op-policy-attrs

op (`u32`)¶

mcast-group-attrs ¶

name (`string`)¶

id (`u32`)¶

op-attrs ¶

id (`u32`)¶

flags (`u32`)¶

enum: op-flags
enum-as-flags: True

policy-attrs ¶

type (`u32`)¶

enum: attr-type

min-value-s (`s64`)¶

max-value-s (`s64`)¶

min-value-u (`u64`)¶

max-value-u (`u64`)¶

min-length (`u32`)¶

max-length (`u32`)¶

policy-idx (`u32`)¶

policy-maxtype (`u32`)¶

bitfield32-mask (`u32`)¶

mask (`u64`)¶

pad (`pad`)¶

op-policy-attrs ¶

do (`u32`)¶

dump (`u32`)¶