.\" Copyright (c) 2004 Pawel Jakub Dawidek <[email protected]> .\" 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. .\" .Dd September 8, 2016 .Dt GGATED 8 .Os .Sh NAME .Nm ggated .Nd "GEOM Gate network daemon" .Sh SYNOPSIS .Nm .Op Fl h .Op Fl n .Op Fl v .Op Fl a Ar address .Op Fl p Ar port .Op Fl F Ar pidfile .Op Fl R Ar rcvbuf .Op Fl S Ar sndbuf .Op Ar "exports file" .Sh DESCRIPTION The .Nm utility is a network server for the GEOM Gate class. It runs on a server machine to service GEOM Gate requests from workers placed on a client machine. Keep in mind, that connections between .Xr ggatec 8 and .Nm are not encrypted. .Pp Available options: .Bl -tag -width ".Ar exports\ file" .It Fl a Ar address Specifies an IP address to bind to. .It Fl h Print available options. .It Fl n Do not use .Dv TCP_NODELAY option on TCP sockets. .It Fl p Ar port Port on which .Nm listens for connections. Default is 3080. .It Fl F Ar pidfile PID file that .Nm uses. .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 v Do not fork, run in foreground and print debug information on standard output. .It Ar "exports file" An alternate location for the exports file. .El .Pp The format of an exports file is as follows: .Bd -literal -offset indent 1.2.3.4 RO /dev/cd0 1.2.3.0/24 RW /tmp/test.img hostname WO /tmp/image hostname RW,DIRECT /tmp/direct-image hostname RW,NODIRECT /tmp/nodirect-image .Ed .Pp The first colunm specifies the ip, network with netmask, or the hostname that the export applies to. .Pp The next column is the access flags that apply to the export .Bl -tag -width ".Cm NODIRECT" .It Cm RO Read-Only the path specified will be exported to the client read only. .It Cm WO Write-Only the path specified will be exported to the client write only. .It Cm RW Read-Write the path specified will be exported to the client read-write. .It Cm DIRECT The path specified will always be opened with O_DIRECT for clients. .It Cm NODIRECT The path specified will never be opened with O_DIRECT for clients. .El .Pp The final column specifies the path to export. .Pp Files are opened with the least common flags between the client and the server. A client may request read or write only to a read-write export and the server will honor the client request and open the file in the requested mode. A client requesting greater access than permissions listed in the file will be rejected. .Pp DIRECT and NODIRECT are used to coerce the use of the O_DIRECT flag to .Xr open 2 when the specified path is opened. If DIRECT is specified the path is always opened with O_DIRECT. If NODIRECT is specified the path is never opened with O_DIRECT. DIRECT access limits the cache effects of IO operaions on the file. This has the effect of having clients accessing exports to not impact the cache of the local machine, however it will cause greater IO utilization to the devices on which the files reside. .Pp If neither is specified the server will use the preference specified by the client, with the default to not use O_DIRECT. If the client specifies a preference against the server's configuration the client preference will be silently ignored. .Pp .Sh FILES .Bl -tag -width ".Pa /var/run/ggated.pid" -compact .It Pa /var/run/ggated.pid The default location of the .Nm PID file. .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 Export CD-ROM device, a file, and a file with .Dv O_DIRECT option: .Bd -literal -offset indent # echo "1.2.3.0/24 RO /dev/cd0" > /etc/gg.exports # echo "client RW /image" >> /etc/gg.exports # echo "client RW,DIRECT /image2" >> /etc/gg.exports # echo "client RW,NODIRECT /image3" >> /etc/gg.exports # ggated .Ed .Sh SEE ALSO .Xr open 2 , .Xr geom 4 , .Xr ggatec 8 , .Xr ggatel 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 [email protected] .
