1.\" 2.\" SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3.\" 4.\" Copyright (c) 2023 Baptiste Daroussin <bapt@nours.eu> 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.Dd Oct 5, 2024 28.Dt GENL 1 29.Os 30.Sh NAME 31.Nm genl 32.Nd "generic netlink" 33.Sh SYNOPSIS 34.Nm 35.Pp 36.Nm Cm list 37.Pp 38.Nm Cm monitor Ao family Ac 39.Op multicast group 40.Sh DESCRIPTION 41The 42.Nm 43utility is design to provide access to the user to generic netlink 44protocols. 45.Pp 46The following commands are available: 47.Bl -tag -width indent 48.It Cm list Po default Pc 49Lists all available generic netlink protocols, and presents its details: 50.Bl -tag -width "multicast groups" 51.It operations 52Id of the operation if any and associated capabilities 53.It multicast groups 54Id of the available multicast group if any and it associated name 55.El 56.It Cm monitor Ao family Ac Oo multicast group Oc 57Connect to the 58.Ar family 59protocol and subscribe to the 60.Ar mulicast group 61then print the received messages in a readable format if the protocol is known. 62So far only 63.Qq nlctrl 64and 65.Qq nlsysevent 66are known. If no 67.Ar multicast group 68are provided then all the groups are subsribed to. 69.El 70.Sh SEE ALSO 71.Xr genetlink 4 , 72.Xr netlink 4 73