newdisk.c revision 1.6
1 /* $NetBSD: newdisk.c,v 1.6 2011/04/29 05:43:51 isaki Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 Minoura Makoto 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Minoura Makoto. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Create the disk mark for x68k SCSI IPL. 35 * It used to be a shell/awk script, but is rewritten in order to be fit with 36 * the install kernel. 37 * 38 * Usage: /usr/mdec/newdisk [-vnfc] [-m /usr/mdec/mboot] /dev/rsd?c 39 */ 40 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <fcntl.h> 45 #include <unistd.h> 46 #include <util.h> 47 #include <sys/param.h> 48 #include <sys/disklabel.h> 49 #include <sys/dkio.h> 50 51 char *prog; 52 char *mboot = MBOOT; 53 char dev[MAXPATHLEN]; 54 char buf[4096 + 1]; 55 56 const char copyright[] = "NetBSD/x68k SCSI Primary Boot. "; 57 58 int verbose = 0, dry_run = 0, force = 0, check_only = 0, mark_only = 0; 59 60 void usage(void) __attribute__((__noreturn__)); 61 int main(int, char *[]); 62 63 void 64 usage(void) 65 { 66 fprintf(stderr, 67 "Usage: %s [-v] [-n] [-f] [-c] [-m /usr/mdec/mboot] " 68 "/dev/rsdXc\n", prog); 69 exit(1); 70 /* NOTREACHED */ 71 } 72 73 int 74 main(int argc, char *argv[]) 75 { 76 extern int optind; 77 int ch; 78 int fd; 79 struct disklabel label; 80 81 prog = argv[0]; 82 while ((ch = getopt(argc, argv, "vnfcm:p")) != -1) { 83 switch (ch) { 84 case 'v': 85 verbose = 1; 86 break; 87 case 'n': 88 dry_run = 1; 89 break; 90 case 'f': 91 force = 1; 92 break; 93 case 'c': 94 check_only = 1; 95 break; 96 case 'm': 97 mboot = optarg; 98 break; 99 case 'p': 100 mark_only = 1; 101 break; 102 default: 103 usage(); 104 } 105 } 106 argc -= optind; 107 argv += optind; 108 109 if (argc != 1) 110 usage(); 111 112 fd = opendisk(argv[0], O_RDONLY, dev, MAXPATHLEN, 0); 113 if (fd < 0) 114 err(1, "opening %s", dev); 115 if (access(mboot, R_OK) < 0) 116 err(1, "checking %s", mboot); 117 118 if (read(fd, buf, 512) < 0) 119 err(1, "reading %s", dev); 120 if (strncmp(buf, "X68SCSI1", 8) == 0 && !force) 121 errx(1, "%s is already marked. " 122 "Use -f to overwrite the existing mark."); 123 if (check_only) 124 return 0; 125 126 if (verbose) 127 fprintf(stderr, "Inspecting %s... ", dev); 128 129 if (ioctl(fd, DIOCGDINFO, &label) < 0) 130 err(1, "inspecting %s", dev); 131 close(fd); 132 if (label.d_secsize != 512) 133 errx(1, "This type of disk is not supported by NetBSD."); 134 135 if (verbose) 136 fprintf(stderr, "total number of sector is %d.\n", 137 label.d_secperunit); 138 139 if (verbose) 140 fprintf(stderr, "Building disk mark... "); 141 memset(buf, 0, 3072); 142 #define n label.d_secperunit 143 sprintf(buf, "X68SCSI1%c%c%c%c%c%c%c%c%s", 144 2, 0, 145 (n/16777216)%256, (n/65536)%256, (n/256)%256, n%256, 146 1, 0, copyright); 147 #undef n 148 if (verbose) 149 fprintf(stderr, "done.\n"); 150 151 if (verbose) 152 fprintf(stderr, "Merging %s... ", mboot); 153 fd = open(mboot, O_RDONLY); 154 if (fd < 0) 155 err(1, "opening %s", mboot); 156 if (read(fd, buf+1024, 1024) < 0) 157 err(1, "reading %s", mboot); 158 close(fd); 159 if (verbose) 160 fprintf(stderr, "done.\n"); 161 162 if (!mark_only) { 163 if (verbose) 164 fprintf(stderr, 165 "Creating an empty partition table... "); 166 #define n (label.d_secperunit/2) 167 sprintf(buf+2048, 168 "X68K%c%c%c%c%c%c%c%c%c%c%c%c", 169 0, 0, 0, 32, 170 (n/16777215)%256, (n/65536)%256, (n/256)%256, n%256, 171 (n/16777215)%256, (n/65536)%256, (n/256)%256, n%256); 172 #undef n 173 if (verbose) 174 fprintf(stderr, "done.\n"); 175 } 176 177 if (dry_run) { 178 char filename[MAXPATHLEN] = "/tmp/diskmarkXXXXX"; 179 fd = mkstemp(filename); 180 if (fd < 0) 181 err(1, "opening %s", filename); 182 if (write(fd, buf, 4096) < 0) 183 err(1, "writing %s", filename); 184 close(fd); 185 fprintf(stderr, "Disk mark is kept in %s.\n", filename); 186 } else { 187 int mode = 1; 188 189 if (verbose) 190 fprintf(stderr, "Writing... "); 191 fd = open(dev, O_WRONLY); 192 if (fd < 0) 193 err(1, "opening %s", dev); 194 if (ioctl(fd, DIOCWLABEL, (char *)&mode) < 0) 195 err(1, "DIOCWLABEL %s", dev); 196 if (write(fd, buf, 4096) != 4096) { 197 mode = 0; 198 ioctl(fd, DIOCWLABEL, (char *)&mode); 199 err(1, "DIOCWLABEL %s", dev); 200 } 201 ioctl(fd, DIOCWLABEL, (char *)&mode); 202 if (verbose) 203 fprintf(stderr, "done.\n"); 204 close(fd); 205 } 206 207 return 0; 208 } 209
Indexes created Fri Oct 03 17:10:05 GMT 2025