1.\" $NetBSD: rpc.lockd.8,v 1.5 2000/06/09 18:51:47 cgd Exp $ 2.\" 3.\" Copyright (c) 1995 A.R.Gordon, andrew.gordon@net-tel.co.uk 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" $FreeBSD: src/usr.sbin/rpc.lockd/rpc.lockd.8,v 1.18 2007/11/02 14:51:53 matteo Exp $ 31.\" $DragonFly: src/usr.sbin/rpc.lockd/rpc.lockd.8,v 1.4 2006/02/17 19:40:23 swildner Exp $ 32.\" 33.Dd November 2, 2007 34.Dt RPC.LOCKD 8 35.Os 36.Sh NAME 37.Nm rpc.lockd 38.Nd NFS file locking daemon 39.Sh SYNOPSIS 40.Nm 41.Op Fl d Ar debug_level 42.Op Fl g Ar grace period 43.Op Fl h Ar bindip 44.Op Fl p Ar port 45.Sh DESCRIPTION 46The 47.Nm 48utility provides monitored and unmonitored file and record locking services 49in an NFS environment. 50To monitor the status of hosts requesting locks, 51the locking daemon typically operates in conjunction 52with 53.Xr rpc.statd 8 . 54.Pp 55Options and operands available for 56.Nm : 57.Bl -tag -width indent 58.It Fl d 59The 60.Fl d 61option causes debugging information to be written to syslog, recording 62all RPC transactions to the daemon. 63These messages are logged with level 64.Dv LOG_DEBUG 65and facility 66.Dv LOG_DAEMON . 67Specifying a 68.Ar debug_level 69of 1 results 70in the generation of one log line per protocol operation. 71Higher 72debug levels can be specified, causing display of operation arguments 73and internal operations of the daemon. 74.It Fl g 75The 76.Fl g 77option allow to specify the 78.Ar grace period , 79in seconds. 80During the grace period 81.Nm 82only accepts requests from hosts which are reinitialising locks which 83existed before the server restart. 84Default is 30 seconds. 85.It Fl h Ar bindip 86Specify specific IP addresses to bind to. 87This option may be specified multiple times. 88If no 89.Fl h 90option is specified, 91.Nm 92will bind to 93.Dv INADDR_ANY . 94Note that when specifying IP addresses with 95.Fl h , 96.Nm 97will automatically add 98.Li 127.0.0.1 99and if IPv6 is enabled, 100.Li ::1 101to the list. 102.It Fl p 103The 104.Fl p 105option allow to force the daemon to bind to the specified 106.Ar port , 107for both AF_INET and AF_INET6 address families. 108.El 109.Pp 110Error conditions are logged to syslog, irrespective of the debug level, 111using log level 112.Dv LOG_ERR 113and facility 114.Dv LOG_DAEMON . 115.Pp 116The 117.Nm 118utility must NOT be invoked by 119.Xr inetd 8 120because the protocol assumes that the daemon will run from system start time. 121Instead, it should be configured in 122.Xr rc.conf 5 123to run at system startup. 124.Sh FILES 125.Bl -tag -width /usr/include/rpcsvc/nlm_prot.x -compact 126.It Pa /usr/include/rpcsvc/nlm_prot.x 127RPC protocol specification for the network lock manager protocol. 128.El 129.Sh SEE ALSO 130.Xr syslog 3 , 131.Xr rc.conf 5 , 132.Xr rpc.statd 8 133.Sh STANDARDS 134The implementation is based on the specification in 135.Rs 136.%B "X/Open CAE Specification C218" 137.%T "Protocols for X/Open PC Interworking: XNFS, Issue 4" 138.%O ISBN 1 872630 66 9 139.Re 140.Sh HISTORY 141A version of 142.Nm 143appeared in 144.Tn SunOS 1454. 146.Sh BUGS 147The current implementation provides only the server side of the protocol 148(i.e., clients running other OS types can establish locks on a 149.Dx 150fileserver, 151but there is currently no means for a 152.Dx 153client to establish locks). 154.Pp 155The current implementation serialises locks requests that could be shared. 156