genl: add manpage

man/man8/genl.8

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+.TH GENL 8 "29 Oct 2015" "iproute2" "Linux"
+.SH NAME
+genl \- generic netlink utility frontend
+.SH SYNOPSIS
+.in +8
+.ti -8
+.BR genl " [ " -s [ tatistics "] ] [ " -d [ etails "] ] [ " -r [ aw "] ] " OBJECT
+
+.ti -8
+.BR genl " { " -V [ ersion "] | " -h [ elp "] }"
+
+.ti -8
+.IR OBJECT " := { "
+.B ctrl
+.IR CTRL_OPTS " }"
+
+.ti -8
+.IR CTRL_OPTS " := { "
+.BR help " | " list " | " monitor " | " get
+.IR PARMS " }"
+
+.ti -8
+.IR PARMS " := { "
+.B name
+.IR NAME " | "
+.B id
+.IR ID " }"
+.SH DESCRIPTION
+The
+.B genl
+utility provides a simple frontend to the generic netlink library. Although it's
+designed to support multiple
+.IR OBJECT s,
+for now only the
+.B ctrl
+object is available, which is used to query the generic netlink controller.
+.SS ctrl
+The generic netlink controller can be queried in various ways:
+.TP
+.B help
+This command just prints a help text for the
+.B ctrl
+object.
+.TP
+.B list
+Show the registered netlink users.
+.TP
+.B monitor
+Listen for generic netlink notifications.
+.TP
+.B get
+Query the controller for a given user, identified either by
+.BR name " or " id .
+.SH OPTIONS
+genl supports the following options.
+.TP
+.B \-h, \-help
+Show summary of options.
+.TP
+.B \-V, \-Version
+Show version of program.
+.TP
+.B \-s, \-stats, \-statistics
+Show object statistics.
+.TP
+.B \-d, \-details
+Show object details.
+.TP
+.B \-r, \-raw
+Dump raw output only.
+.SH SEE ALSO
+.BR ip (8)
+.br
+.SH AUTHOR
+genl was written by Jamal Hadi Salim <hadi@cyberus.ca>.
+.PP
+This manual page was written by Petr Sabata <contyk@redhat.com>.