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gshsec.8
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Editing: gshsec.8
.\" Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org> .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" $FreeBSD$ .\" .Dd October 1, 2013 .Dt GSHSEC 8 .Os .Sh NAME .Nm gshsec .Nd "control utility for shared secret devices" .Sh SYNOPSIS .Nm .Cm label .Op Fl hv .Ar name .Ar prov prov ... .Nm .Cm stop .Op Fl fv .Ar name ... .Nm .Cm clear .Op Fl v .Ar prov ... .Nm .Cm dump .Ar prov ... .Nm .Cm list .Nm .Cm status .Nm .Cm load .Nm .Cm unload .Sh DESCRIPTION The .Nm utility is used for setting up a device which contains a shared secret. The secret is shared between the given providers. To collect the secret, all providers are needed. If one of the components is missing, there is no way to get any useful data from the rest of them. The first argument to .Nm indicates an action to be performed: .Bl -tag -width ".Cm destroy" .It Cm label Set up a shared secret device from the given components with the specified .Ar name . Metadata are stored in the last sector of every component. .It Cm stop Turn off an existing shared secret device by its .Ar name . This command does not touch on-disk metadata! .It Cm clear Clear metadata on the given providers. .It Cm dump Dump metadata stored on the given providers. .It Cm list See .Xr geom 8 . .It Cm status See .Xr geom 8 . .It Cm load See .Xr geom 8 . .It Cm unload See .Xr geom 8 . .El .Pp Additional options: .Bl -tag -width ".Fl f" .It Fl f Force the removal of the specified shared secret device. .It Fl h Hardcode providers' names in metadata. .It Fl v Be more verbose. .El .Sh EXIT STATUS Exit status is 0 on success, and 1 if the command fails. .Sh EXAMPLES The following example shows how to create a shared secret device. The secret will be split between a slice on a local disk and a USB Pen drive. .Bd -literal -offset indent gshsec label -v secret /dev/ada0s1 /dev/da0 newfs /dev/shsec/secret .Ed .Pp From now on, when the USB Pen drive is inserted, it will be automatically detected and connected, making the secret available via the .Pa /dev/shsec/secret device. .Sh SEE ALSO .Xr geom 4 , .Xr gbde 8 , .Xr geom 8 , .Xr newfs 8 .Sh HISTORY The .Nm utility appeared in .Fx 5.4 . .Sh AUTHORS .An Pawel Jakub Dawidek Aq Mt pjd@FreeBSD.org
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