GSHSEC(8) FreeBSD System Manager's Manual GSHSEC(8)
NAME
gshsec - control utility for shared secret devices
SYNOPSIS
gshsec label [-hv] name prov prov ...
gshsec stop [-fv] name ...
gshsec clear [-v] prov ...
gshsec dump prov ...
gshsec list
gshsec status
gshsec load
gshsec unload
DESCRIPTION
The gshsec 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 gshsec indicates an action to be performed:
label Set up a shared secret device from the given components with the
specified name. Metadata are stored in the last sector of every
component.
stop Turn off an existing shared secret device by its name. This
command does not touch on-disk metadata!
clear Clear metadata on the given providers.
dump Dump metadata stored on the given providers.
list See geom(8).
status See geom(8).
load See geom(8).
unload See geom(8).
Additional options:
-f
Force the removal of the specified shared secret device.
-h
Hardcode providers' names in metadata.
-v
Be more verbose.
EXIT STATUS
Exit status is 0 on success, and 1 if the command fails.
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.
gshsec label -v secret /dev/ada0s1 /dev/da0
newfs /dev/shsec/secret
From now on, when the USB Pen drive is inserted, it will be automatically
detected and connected, making the secret available via the
/dev/shsec/secret device.
SEE ALSO
geom(4), gbde(8), geom(8), newfs(8)
HISTORY
The gshsec utility appeared in FreeBSD 5.4.
AUTHORS
Pawel Jakub Dawidek <
[email protected]>
FreeBSD 14.1-RELEASE-p8 October 1, 2013 FreeBSD 14.1-RELEASE-p8