1 /* $NetBSD: newdisk.c,v 1.11 2014/03/26 08:17:59 christos 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * Create the disk mark for x68k SCSI IPL. 30 * It used to be a shell/awk script, but is rewritten in order to be fit with 31 * the install kernel. 32 * 33 * Usage: /usr/mdec/newdisk [-vnfc] [-m /usr/mdec/mboot] /dev/rsd?c 34 */ 35 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <string.h> 39 #include <err.h> 40 #include <fcntl.h> 41 #include <unistd.h> 42 #include <util.h> 43 #include <sys/param.h> 44 #include <sys/disklabel.h> 45 #include <sys/dkio.h> 46 #include <sys/ioctl.h> 47 48 const char *mboot = MBOOT; 49 char dev[MAXPATHLEN]; 50 char buf[4096 + 1]; 51 52 const char copyright[] = "NetBSD/x68k SCSI Primary Boot. "; 53 54 int verbose = 0, dry_run = 0, force = 0, check_only = 0, mark_only = 0; 55 56 void usage(void) __attribute__((__noreturn__)); 57 int main(int, char *[]); 58 59 void 60 usage(void) 61 { 62 fprintf(stderr, 63 "Usage: %s [-v] [-n] [-f] [-c] [-m /usr/mdec/mboot] " 64 "/dev/rsdXc\n", getprogname()); 65 exit(1); 66 /* NOTREACHED */ 67 } 68 69 int 70 main(int argc, char *argv[]) 71 { 72 int ch; 73 int fd; 74 struct disklabel label; 75 76 while ((ch = getopt(argc, argv, "vnfcm:p")) != -1) { 77 switch (ch) { 78 case 'v': 79 verbose = 1; 80 break; 81 case 'n': 82 dry_run = 1; 83 break; 84 case 'f': 85 force = 1; 86 break; 87 case 'c': 88 check_only = 1; 89 break; 90 case 'm': 91 mboot = optarg; 92 break; 93 case 'p': 94 mark_only = 1; 95 break; 96 default: 97 usage(); 98 } 99 } 100 argc -= optind; 101 argv += optind; 102 103 if (argc != 1) 104 usage(); 105 106 fd = opendisk(argv[0], O_RDONLY, dev, MAXPATHLEN, 0); 107 if (fd < 0) 108 err(1, "opening %s", dev); 109 if (access(mboot, R_OK) < 0) 110 err(1, "checking %s", mboot); 111 112 if (read(fd, buf, 512) < 0) 113 err(1, "reading %s", dev); 114 if (strncmp(buf, "X68SCSI1", 8) == 0 && !force) 115 errx(1, "%s is already marked. " 116 "Use -f to overwrite the existing mark.", dev); 117 if (check_only) 118 return 0; 119 120 if (verbose) 121 fprintf(stderr, "Inspecting %s... ", dev); 122 123 if (ioctl(fd, DIOCGDINFO, &label) < 0) 124 err(1, "inspecting %s", dev); 125 close(fd); 126 if (label.d_secsize != 512) 127 errx(1, "This type of disk is not supported by NetBSD."); 128 129 if (verbose) 130 fprintf(stderr, "total number of sector is %d.\n", 131 label.d_secperunit); 132 133 if (verbose) 134 fprintf(stderr, "Building disk mark... "); 135 memset(buf, 0, 3072); 136 #define n label.d_secperunit 137 snprintf(buf, sizeof(buf), "X68SCSI1%c%c%c%c%c%c%c%c%s", 138 2, 0, 139 (n/16777216)%256, (n/65536)%256, (n/256)%256, n%256, 140 1, 0, copyright); 141 #undef n 142 if (verbose) 143 fprintf(stderr, "done.\n"); 144 145 if (verbose) 146 fprintf(stderr, "Merging %s... ", mboot); 147 fd = open(mboot, O_RDONLY); 148 if (fd < 0) 149 err(1, "opening %s", mboot); 150 if (read(fd, buf+1024, 1024) < 0) 151 err(1, "reading %s", mboot); 152 close(fd); 153 if (verbose) 154 fprintf(stderr, "done.\n"); 155 156 if (!mark_only) { 157 if (verbose) 158 fprintf(stderr, 159 "Creating an empty partition table... "); 160 #define n (label.d_secperunit/2) 161 snprintf(buf + 2048, sizeof(buf) - 2048, 162 "X68K%c%c%c%c%c%c%c%c%c%c%c%c", 163 0, 0, 0, 32, 164 (n/16777215)%256, (n/65536)%256, (n/256)%256, n%256, 165 (n/16777215)%256, (n/65536)%256, (n/256)%256, n%256); 166 #undef n 167 if (verbose) 168 fprintf(stderr, "done.\n"); 169 } 170 171 if (dry_run) { 172 char filename[MAXPATHLEN] = "/tmp/diskmarkXXXXX"; 173 fd = mkstemp(filename); 174 if (fd < 0) 175 err(1, "opening %s", filename); 176 if (write(fd, buf, 4096) < 0) 177 err(1, "writing %s", filename); 178 close(fd); 179 fprintf(stderr, "Disk mark is kept in %s.\n", filename); 180 } else { 181 int mode = 1; 182 183 if (verbose) 184 fprintf(stderr, "Writing... "); 185 fd = open(dev, O_WRONLY); 186 if (fd < 0) 187 err(1, "opening %s", dev); 188 if (ioctl(fd, DIOCWLABEL, (char *)&mode) < 0) 189 err(1, "DIOCWLABEL %s", dev); 190 if (write(fd, buf, 4096) != 4096) { 191 mode = 0; 192 ioctl(fd, DIOCWLABEL, (char *)&mode); 193 err(1, "DIOCWLABEL %s", dev); 194 } 195 ioctl(fd, DIOCWLABEL, (char *)&mode); 196 if (verbose) 197 fprintf(stderr, "done.\n"); 198 close(fd); 199 } 200 201 return 0; 202 } 203
Indexes created Fri Oct 03 02:09:57 GMT 2025