ufs_disksubr.c revision 1.2.2.3
1 1.2.2.3 yamt /* $NetBSD: ufs_disksubr.c,v 1.2.2.3 2014/05/22 11:39:55 yamt Exp $ */ 2 1.2.2.2 yamt 3 1.2.2.2 yamt /* 4 1.2.2.2 yamt * Copyright (c) 1992 OMRON Corporation. 5 1.2.2.2 yamt * 6 1.2.2.2 yamt * This code is derived from software contributed to Berkeley by 7 1.2.2.2 yamt * OMRON Corporation. 8 1.2.2.2 yamt * 9 1.2.2.2 yamt * Redistribution and use in source and binary forms, with or without 10 1.2.2.2 yamt * modification, are permitted provided that the following conditions 11 1.2.2.2 yamt * are met: 12 1.2.2.2 yamt * 1. Redistributions of source code must retain the above copyright 13 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer. 14 1.2.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 15 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer in the 16 1.2.2.2 yamt * documentation and/or other materials provided with the distribution. 17 1.2.2.2 yamt * 3. All advertising materials mentioning features or use of this software 18 1.2.2.2 yamt * must display the following acknowledgement: 19 1.2.2.2 yamt * This product includes software developed by the University of 20 1.2.2.2 yamt * California, Berkeley and its contributors. 21 1.2.2.2 yamt * 4. Neither the name of the University nor the names of its contributors 22 1.2.2.2 yamt * may be used to endorse or promote products derived from this software 23 1.2.2.2 yamt * without specific prior written permission. 24 1.2.2.2 yamt * 25 1.2.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 1.2.2.2 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 1.2.2.2 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 1.2.2.2 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 1.2.2.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 1.2.2.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 1.2.2.2 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 1.2.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 1.2.2.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 1.2.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 1.2.2.2 yamt * SUCH DAMAGE. 36 1.2.2.2 yamt * 37 1.2.2.2 yamt * @(#)ufs_disksubr.c 8.1 (Berkeley) 6/10/93 38 1.2.2.2 yamt */ 39 1.2.2.2 yamt /* 40 1.2.2.2 yamt * Copyright (c) 1992, 1993 41 1.2.2.2 yamt * The Regents of the University of California. All rights reserved. 42 1.2.2.2 yamt * 43 1.2.2.2 yamt * This code is derived from software contributed to Berkeley by 44 1.2.2.2 yamt * OMRON Corporation. 45 1.2.2.2 yamt * 46 1.2.2.2 yamt * Redistribution and use in source and binary forms, with or without 47 1.2.2.2 yamt * modification, are permitted provided that the following conditions 48 1.2.2.2 yamt * are met: 49 1.2.2.2 yamt * 1. Redistributions of source code must retain the above copyright 50 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer. 51 1.2.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 52 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer in the 53 1.2.2.2 yamt * documentation and/or other materials provided with the distribution. 54 1.2.2.2 yamt * 3. Neither the name of the University nor the names of its contributors 55 1.2.2.2 yamt * may be used to endorse or promote products derived from this software 56 1.2.2.2 yamt * without specific prior written permission. 57 1.2.2.2 yamt * 58 1.2.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 1.2.2.2 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 1.2.2.2 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 1.2.2.2 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 1.2.2.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 1.2.2.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 1.2.2.2 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 1.2.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 1.2.2.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 1.2.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 1.2.2.2 yamt * SUCH DAMAGE. 69 1.2.2.2 yamt * 70 1.2.2.2 yamt * @(#)ufs_disksubr.c 8.1 (Berkeley) 6/10/93 71 1.2.2.2 yamt */ 72 1.2.2.2 yamt 73 1.2.2.2 yamt /* 74 1.2.2.2 yamt * ufs_disksubr.c -- disk utility routines 75 1.2.2.2 yamt * by A.Fujita, FEB-26-1992 76 1.2.2.2 yamt */ 77 1.2.2.2 yamt 78 1.2.2.2 yamt #include <sys/param.h> 79 1.2.2.2 yamt #include <sys/disklabel.h> 80 1.2.2.2 yamt #include <luna68k/stand/boot/samachdep.h> 81 1.2.2.2 yamt #include <luna68k/stand/boot/scsireg.h> 82 1.2.2.2 yamt 83 1.2.2.2 yamt /* 84 1.2.2.2 yamt * Attempt to read a disk label from a device 85 1.2.2.2 yamt * using the indicated stategy routine. 86 1.2.2.2 yamt * The label must be partly set up before this: 87 1.2.2.2 yamt * secpercyl and anything required in the strategy routine 88 1.2.2.2 yamt * (e.g., sector size) must be filled in before calling us. 89 1.2.2.2 yamt * Returns null on success and an error string on failure. 90 1.2.2.2 yamt */ 91 1.2.2.2 yamt char * 92 1.2.2.2 yamt readdisklabel(int ctlr, int id, struct disklabel *lp) 93 1.2.2.2 yamt { 94 1.2.2.2 yamt u_char *bp = lbl_buff; 95 1.2.2.2 yamt struct disklabel *dlp; 96 1.2.2.2 yamt char *msg = NULL; 97 1.2.2.3 yamt static struct scsi_generic_cdb cdb = { 98 1.2.2.2 yamt 6, 99 1.2.2.2 yamt { CMD_READ, 0, 0, 0, 1, 0 } 100 1.2.2.2 yamt }; 101 1.2.2.2 yamt 102 1.2.2.2 yamt if (lp->d_secperunit == 0) 103 1.2.2.2 yamt lp->d_secperunit = 0x1fffffff; 104 1.2.2.2 yamt lp->d_npartitions = 1; 105 1.2.2.2 yamt if (lp->d_partitions[0].p_size == 0) 106 1.2.2.2 yamt lp->d_partitions[0].p_size = 0x1fffffff; 107 1.2.2.2 yamt lp->d_partitions[0].p_offset = 0; 108 1.2.2.2 yamt 109 1.2.2.2 yamt if (scsi_immed_command(ctlr, id, 0, &cdb, bp, DEV_BSIZE) != 0) { 110 1.2.2.2 yamt msg = "I/O error"; 111 1.2.2.2 yamt } else { 112 1.2.2.2 yamt for (dlp = (struct disklabel *)bp; 113 1.2.2.2 yamt dlp <= (struct disklabel *)(bp + DEV_BSIZE - sizeof(*dlp)); 114 1.2.2.2 yamt dlp = (struct disklabel *)((char *)dlp + sizeof(long))) { 115 1.2.2.3 yamt if (dlp->d_magic != DISKMAGIC || 116 1.2.2.3 yamt dlp->d_magic2 != DISKMAGIC) { 117 1.2.2.2 yamt if (msg == NULL) 118 1.2.2.2 yamt msg = "no disk label"; 119 1.2.2.2 yamt } else if (dlp->d_npartitions > MAXPARTITIONS || 120 1.2.2.2 yamt dkcksum(dlp) != 0) 121 1.2.2.2 yamt msg = "disk label corrupted"; 122 1.2.2.2 yamt else { 123 1.2.2.2 yamt *lp = *dlp; 124 1.2.2.2 yamt msg = NULL; 125 1.2.2.2 yamt break; 126 1.2.2.2 yamt } 127 1.2.2.2 yamt } 128 1.2.2.2 yamt } 129 1.2.2.2 yamt 130 1.2.2.3 yamt return msg; 131 1.2.2.2 yamt } 132
Indexes created Wed Oct 15 16:09:53 GMT 2025