.\" Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
.\" are met:
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" $FreeBSD$
.\"
.Dd September 8, 2016
.Dt GGATEC 8
.Os
.Sh NAME
.Nm ggatec
.Nd "GEOM Gate network client and control utility"
.Sh SYNOPSIS
.Nm
.Cm create
.Op Fl n
.Op Fl v
.Op Fl o Cm ro | wo | rw
.Op Fl p Ar port
.Op Fl q Ar queue_size
.Op Fl R Ar rcvbuf
.Op Fl S Ar sndbuf
.Op Fl s Ar sectorsize
.Op Fl t Ar timeout
.Op Fl u Ar unit
.Ar host
.Ar path
.Nm
.Cm rescue
.Op Fl n
.Op Fl v
.Op Fl o Cm ro | wo | rw
.Op Fl p Ar port
.Op Fl R Ar rcvbuf
.Op Fl S Ar sndbuf
.Fl u Ar unit
.Ar host
.Ar path
.Nm
.Cm destroy
.Op Fl f
.Fl u Ar unit
.Nm
.Cm list
.Op Fl v
.Op Fl u Ar unit
.Sh DESCRIPTION
The
.Nm
utility is a network client for the GEOM Gate class.
It is responsible for the creation of
.Nm ggate
devices and forwarding I/O requests between the
.Nm GEOM Gate
kernel subsystem and the
.Xr ggated 8
network daemon.
Available commands:
.Bl -tag -width ".Cm destroy"
.It Cm create
Connect to a
.Xr ggated 8
daemon on the specified host and create a
.Nm ggate
provider for the specified remote file or device.
.It Cm rescue
Create a new connection after the
.Nm
process has died or been killed.
The new connection to the
.Xr ggated 8
daemon handles pending and future requests.
.It Cm destroy
Destroy the given
.Nm ggate
provider.
.It Cm list
List
.Nm ggate
providers.
.El
.Pp
Available options:
.Bl -tag -width ".Fl s Cm ro | wo | rw"
.It Fl f
Forcibly destroy
.Nm ggate
provider (cancels all pending requests).
.It Fl n
Do not use
.Dv TCP_NODELAY
option on TCP sockets.
.It Fl o Cm ro | wo | rw
Specify permissions to use when opening the file or device: read-only
.Pq Cm ro ,
write-only
.Pq Cm wo ,
or read-write
.Pq Cm rw .
Default is
.Cm rw .
.It Fl p Ar port
Port to connect to on the remote host.
Default is 3080.
.It Fl q Ar queue_size
Number of pending I/O requests that can be queued before they will
start to be canceled.
Default is 1024.
.It Fl R Ar rcvbuf
Size of receive buffer to use.
Default is 131072 (128kB).
.It Fl S Ar sndbuf
Size of send buffer to use.
Default is 131072 (128kB).
.It Fl s Ar sectorsize
Sector size for
.Nm ggate
provider.
If not specified, it is taken from the device, or set to 512 bytes for files.
.It Fl t Ar timeout
Number of seconds to wait before an I/O request will be canceled.
Default is 0, which means no timeout.
.It Fl u Ar unit
Unit number to use.
.It Fl v
Do not fork, run in foreground and print debug information on standard
output.
.It Ar host
Remote host to connect to.
.It Ar path
Path to a regular file or device.
.El
.Sh EXIT STATUS
Exit status is 0 on success, or 1 if the command fails.
To get details about the failure,
.Nm
should be called with the
.Fl v
option.
.Sh EXAMPLES
Use a CD-ROM device on a remote host.
.Bd -literal -offset indent
server# cat /etc/gg.exports
client RO /dev/cd0
server# ggated

client# ggatec create -o ro server /dev/cd0
ggate0
client# mount_cd9660 /dev/ggate0 /cdrom
.Ed
.Sh SEE ALSO
.Xr geom 4 ,
.Xr ggated 8 ,
.Xr ggatel 8 ,
.Xr mount_cd9660 8
.Sh HISTORY
The
.Nm
utility appeared in
.Fx 5.3 .
.Sh AUTHORS
The
.Nm
utility as well as this manual page was written by
.An Pawel Jakub Dawidek Aq Mt pjd@FreeBSD.org .