xref: /freebsd/sbin/ggate/ggatel/ggatel.8 (revision f05cddf9)
1.\" Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
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25.\" $FreeBSD$
26.\"
27.Dd April 2, 2011
28.Dt GGATEL 8
29.Os
30.Sh NAME
31.Nm ggatel
32.Nd "GEOM Gate local control utility"
33.Sh SYNOPSIS
34.Nm
35.Cm create
36.Op Fl v
37.Op Fl o Cm ro | wo | rw
38.Op Fl s Ar sectorsize
39.Op Fl t Ar timeout
40.Op Fl u Ar unit
41.Ar path
42.Nm
43.Cm attach
44.Op Fl v
45.Op Fl o Cm ro | wo | rw
46.Fl u Ar unit
47.Ar path
48.Nm
49.Cm destroy
50.Op Fl f
51.Fl u Ar unit
52.Nm
53.Cm list
54.Op Fl v
55.Op Fl u Ar unit
56.Sh DESCRIPTION
57The
58.Nm
59utility is a local GEOM Gate class consumer.
60It can be used as a replacement for
61.Xr md 4
62devices or as a
63.Dq GEOMificator
64for non GEOM-aware devices, but it was mainly created as an example
65on how to use and how to communicate with the GEOM Gate kernel module.
66.Pp
67Available commands:
68.Bl -tag -width ".Cm destroy"
69.It Cm create
70Create a
71.Nm ggate
72provider related to the given regular file or device.
73.It Cm attach
74Attach a worker process to an existing
75.Nm ggate
76provider.
77.It Cm destroy
78Destroy the given
79.Nm ggate
80provider.
81.It Cm list
82List
83.Nm ggate
84providers.
85.El
86.Pp
87Available options:
88.Bl -tag -width ".Fl s Cm ro | wo | rw"
89.It Fl f
90Forcibly destroy
91.Nm ggate
92provider (cancels all pending requests).
93.It Fl o Cm ro | wo | rw
94Specify permission to use when opening the file or device: read-only
95.Pq Cm ro ,
96write-only
97.Pq Cm wo ,
98or read-write
99.Pq Cm rw .
100Default is
101.Cm rw .
102.It Fl s Ar sectorsize
103Sector size for
104.Nm ggate
105provider.
106If not specified, it is taken from device, or set to 512 bytes for files.
107.It Fl t Ar timeout
108Number of seconds to wait before an I/O request will be canceled.
1090 means no timeout.
110Default is 30.
111.It Fl u Ar unit
112Unit number to use.
113.It Fl v
114Do not fork, run in foreground and print debug informations on standard
115output.
116.It Ar path
117Path to a regular file or device.
118.El
119.Sh EXIT STATUS
120Exit status is 0 on success, or 1 if the command fails.
121To get details about the failure,
122.Nm
123should be called with the
124.Fl v
125option.
126.Sh EXAMPLES
127.Dq GEOMify
128the
129.Dq Li fd0
130device and use
131.Xr gbde 8
132to encrypt data on a floppy.
133.Bd -literal -offset indent
134ggatel create -u 5 /dev/fd0
135gbde init /dev/ggate5
136gbde attach ggate5
137newfs /dev/ggate5.bde
138mount /dev/ggate5.bde /secret
139cp /private/foo /secret/
140umount /secret
141gbde detach ggate5
142ggatel destroy -u 5
143.Ed
144.Sh SEE ALSO
145.Xr geom 4 ,
146.Xr gbde 8 ,
147.Xr ggatec 8 ,
148.Xr ggated 8 ,
149.Xr mount 8 ,
150.Xr newfs 8
151.Sh AUTHORS
152The
153.Nm
154utility as well as this manual page was written by
155.An Pawel Jakub Dawidek Aq pjd@FreeBSD.org .
156