1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1993-2002 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * get timestamp from device 31 */ 32 33 #include <meta.h> 34 35 /* 36 * get timestamp 37 */ 38 int 39 getdevstamp( 40 mddrivename_t *dnp, 41 time_t *stamp, /* return timestamp here */ 42 md_error_t *ep 43 ) 44 { 45 int fd; 46 int partno; 47 struct vtoc vtocbuf; 48 mdname_t *np; 49 50 if ((np = metaslicename(dnp, MD_SLICE0, ep)) == NULL) 51 return (-1); 52 53 /* open given device */ 54 if ((fd = open(np->rname, O_RDONLY | O_NDELAY, 0)) < 0) 55 return (mdsyserror(ep, errno, np->cname)); 56 57 /* re-read vtoc */ 58 if (meta_getvtoc(fd, np->cname, &vtocbuf, &partno, ep) == -1) { 59 (void) close(fd); 60 return (-1); 61 } 62 63 /* close device */ 64 (void) close(fd); /* sd/ssd bug */ 65 66 /* return timestamp, success */ 67 *stamp = vtocbuf.timestamp[partno]; 68 return (0); 69 } 70 71 /* 72 * returns 73 * 0 on success, 74 * ENOTSUP if it's not a device with a vtoc 75 * -1 on failure 76 */ 77 int 78 setdevstamp( 79 mddrivename_t *dnp, 80 time_t *stamp, /* returned timestamp */ 81 md_error_t *ep 82 ) 83 { 84 int fd; 85 int partno; 86 struct vtoc vtocbuf; 87 time_t now = time(NULL); 88 mdname_t *np; 89 90 if ((np = metaslicename(dnp, MD_SLICE0, ep)) == NULL) 91 return (-1); 92 93 /* open for vtoc */ 94 if ((fd = open(np->rname, O_RDWR | O_NDELAY, 0)) < 0) 95 return (mdsyserror(ep, errno, np->cname)); 96 97 if (meta_getvtoc(fd, np->cname, &vtocbuf, &partno, ep) == -1) { 98 (void) close(fd); 99 if (partno == VT_ENOTSUP) 100 return (ENOTSUP); 101 else 102 return (-1); 103 } 104 105 *stamp = vtocbuf.timestamp[partno] = now; 106 107 if (meta_setvtoc(fd, np->cname, &vtocbuf, ep) == -1) { 108 (void) close(fd); 109 return (-1); 110 } 111 112 /* Clear the timestamp */ 113 vtocbuf.timestamp[partno] = 0; 114 115 if (meta_getvtoc(fd, np->cname, &vtocbuf, &partno, ep) == -1) { 116 (void) close(fd); 117 return (-1); 118 } 119 120 (void) close(fd); /* sd/ssd bug */ 121 122 if (*stamp != vtocbuf.timestamp[partno]) 123 return (mddeverror(ep, MDE_CANTVERIFY_VTOC, NODEV64, 124 np->cname)); 125 126 return (0); 127 } 128