1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2017 Rick Macklem 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <err.h> 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <unistd.h> 36 #include <netdb.h> 37 #include <arpa/inet.h> 38 #include <netinet/in.h> 39 #include <nfs/nfssvc.h> 40 41 #include <fs/nfs/nfsproto.h> 42 #include <fs/nfs/nfskpiport.h> 43 #include <fs/nfs/nfs.h> 44 45 static void usage(void); 46 47 /* 48 * This program disables use of a DS mirror. The "dspath" command line 49 * argument must be an exact match for the mounted-on path of the DS. 50 * It should be done before any forced dismount is performed on the path 51 * and should work even when the mount point is hung. 52 */ 53 int 54 main(int argc, char *argv[]) 55 { 56 struct nfsd_pnfsd_args pnfsdarg; 57 58 if (argc != 2) 59 usage(); 60 if (geteuid() != 0) 61 errx(1, "Must be run as root/su"); 62 63 pnfsdarg.op = PNFSDOP_DELDSSERVER; 64 pnfsdarg.dspath = argv[1]; 65 if (nfssvc(NFSSVC_PNFSDS, &pnfsdarg) < 0) 66 err(1, "Can't kill %s", argv[1]); 67 } 68 69 static void 70 usage(void) 71 { 72 73 fprintf(stderr, "pnfsdsfile [filepath]\n"); 74 exit(1); 75 } 76 77