diff options
Diffstat (limited to 'usr.sbin/clear_locks')
-rw-r--r-- | usr.sbin/clear_locks/Makefile | 8 | ||||
-rw-r--r-- | usr.sbin/clear_locks/clear_locks.8 | 51 | ||||
-rw-r--r-- | usr.sbin/clear_locks/clear_locks.c | 70 |
3 files changed, 129 insertions, 0 deletions
diff --git a/usr.sbin/clear_locks/Makefile b/usr.sbin/clear_locks/Makefile new file mode 100644 index 0000000..8f28915 --- /dev/null +++ b/usr.sbin/clear_locks/Makefile @@ -0,0 +1,8 @@ +# $FreeBSD$ + +PROG= clear_locks +MAN= clear_locks.8 +LDADD= -lrpcsvc +WARNS= 6 + +.include <bsd.prog.mk> diff --git a/usr.sbin/clear_locks/clear_locks.8 b/usr.sbin/clear_locks/clear_locks.8 new file mode 100644 index 0000000..9f6cafe --- /dev/null +++ b/usr.sbin/clear_locks/clear_locks.8 @@ -0,0 +1,51 @@ +.\" Copyright (c) 2008 Isilon Inc http://www.isilon.com/ +.\" Authors: Doug Rabson <dfr@rabson.org> +.\" Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org> +.\" +.\" 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 AUTHOR 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 AUTHOR 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. +.\" +.\" $FreeBSD$ +.\" +.Dd March 19, 2008 +.Dt CLEAR_LOCKS 8 +.Os +.Sh NAME +.Nm clear_locks +.Nd clear locks held on behalf of an NFS client +.Sh SYNOPSIS +.Nm +.Ar hostname +.Sh DESCRIPTION +The +.Nm +command can be used to clear file locks held by an NFS client. +This should only be used to handle problems caused by an NFS client +crashing while holding locks and failing to clear them itself when it +reboots. +.Sh SEE ALSO +.Xr rpc.lockd 8 +.Sh HISTORY +A version of +.Nm +appeared in +.Tn SunOS +4. diff --git a/usr.sbin/clear_locks/clear_locks.c b/usr.sbin/clear_locks/clear_locks.c new file mode 100644 index 0000000..1249c12 --- /dev/null +++ b/usr.sbin/clear_locks/clear_locks.c @@ -0,0 +1,70 @@ +/*- + * Copyright (c) 2008 Isilon Inc http://www.isilon.com/ + * Authors: Doug Rabson <dfr@rabson.org> + * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org> + * + * 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 AUTHOR 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 AUTHOR 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include <rpc/rpc.h> +#include <rpcsvc/nlm_prot.h> + +int +main(int argc, char **argv) +{ + enum clnt_stat stat; + char *hostname; + nlm4_notify notify; + + if (argc != 2) { + fprintf(stderr, "Usage: clear_locks <hostname>\n"); + exit(1); + } + hostname = argv[1]; + + if (geteuid() != 0) { + fprintf(stderr, "clear_locks: must be root\n"); + exit(1); + } + + notify.name = hostname; + notify.state = 0; + stat = rpc_call("localhost", NLM_PROG, NLM_VERS4, NLM4_FREE_ALL, + (xdrproc_t) xdr_nlm4_notify, (void *) ¬ify, + (xdrproc_t) xdr_void, NULL, NULL); + + if (stat != RPC_SUCCESS) { + clnt_perrno(stat); + exit(1); + } + fprintf(stderr, "clear_locks: cleared locks for hostname %s\n", + hostname); + + return (0); +} |