/* $NetBSD: newdisk.c,v 1.11 2014/03/26 08:17:59 christos Exp $ */ /*- * Copyright (c) 1999 Minoura Makoto * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Create the disk mark for x68k SCSI IPL. * It used to be a shell/awk script, but is rewritten in order to be fit with * the install kernel. * * Usage: /usr/mdec/newdisk [-vnfc] [-m /usr/mdec/mboot] /dev/rsd?c */ #include #include #include #include #include #include #include #include #include #include #include const char *mboot = MBOOT; char dev[MAXPATHLEN]; char buf[4096 + 1]; const char copyright[] = "NetBSD/x68k SCSI Primary Boot. "; int verbose = 0, dry_run = 0, force = 0, check_only = 0, mark_only = 0; void usage(void) __attribute__((__noreturn__)); int main(int, char *[]); void usage(void) { fprintf(stderr, "Usage: %s [-v] [-n] [-f] [-c] [-m /usr/mdec/mboot] " "/dev/rsdXc\n", getprogname()); exit(1); /* NOTREACHED */ } int main(int argc, char *argv[]) { int ch; int fd; struct disklabel label; while ((ch = getopt(argc, argv, "vnfcm:p")) != -1) { switch (ch) { case 'v': verbose = 1; break; case 'n': dry_run = 1; break; case 'f': force = 1; break; case 'c': check_only = 1; break; case 'm': mboot = optarg; break; case 'p': mark_only = 1; break; default: usage(); } } argc -= optind; argv += optind; if (argc != 1) usage(); fd = opendisk(argv[0], O_RDONLY, dev, MAXPATHLEN, 0); if (fd < 0) err(1, "opening %s", dev); if (access(mboot, R_OK) < 0) err(1, "checking %s", mboot); if (read(fd, buf, 512) < 0) err(1, "reading %s", dev); if (strncmp(buf, "X68SCSI1", 8) == 0 && !force) errx(1, "%s is already marked. " "Use -f to overwrite the existing mark.", dev); if (check_only) return 0; if (verbose) fprintf(stderr, "Inspecting %s... ", dev); if (ioctl(fd, DIOCGDINFO, &label) < 0) err(1, "inspecting %s", dev); close(fd); if (label.d_secsize != 512) errx(1, "This type of disk is not supported by NetBSD."); if (verbose) fprintf(stderr, "total number of sector is %d.\n", label.d_secperunit); if (verbose) fprintf(stderr, "Building disk mark... "); memset(buf, 0, 3072); #define n label.d_secperunit snprintf(buf, sizeof(buf), "X68SCSI1%c%c%c%c%c%c%c%c%s", 2, 0, (n/16777216)%256, (n/65536)%256, (n/256)%256, n%256, 1, 0, copyright); #undef n if (verbose) fprintf(stderr, "done.\n"); if (verbose) fprintf(stderr, "Merging %s... ", mboot); fd = open(mboot, O_RDONLY); if (fd < 0) err(1, "opening %s", mboot); if (read(fd, buf+1024, 1024) < 0) err(1, "reading %s", mboot); close(fd); if (verbose) fprintf(stderr, "done.\n"); if (!mark_only) { if (verbose) fprintf(stderr, "Creating an empty partition table... "); #define n (label.d_secperunit/2) snprintf(buf + 2048, sizeof(buf) - 2048, "X68K%c%c%c%c%c%c%c%c%c%c%c%c", 0, 0, 0, 32, (n/16777215)%256, (n/65536)%256, (n/256)%256, n%256, (n/16777215)%256, (n/65536)%256, (n/256)%256, n%256); #undef n if (verbose) fprintf(stderr, "done.\n"); } if (dry_run) { char filename[MAXPATHLEN] = "/tmp/diskmarkXXXXX"; fd = mkstemp(filename); if (fd < 0) err(1, "opening %s", filename); if (write(fd, buf, 4096) < 0) err(1, "writing %s", filename); close(fd); fprintf(stderr, "Disk mark is kept in %s.\n", filename); } else { int mode = 1; if (verbose) fprintf(stderr, "Writing... "); fd = open(dev, O_WRONLY); if (fd < 0) err(1, "opening %s", dev); if (ioctl(fd, DIOCWLABEL, (char *)&mode) < 0) err(1, "DIOCWLABEL %s", dev); if (write(fd, buf, 4096) != 4096) { mode = 0; ioctl(fd, DIOCWLABEL, (char *)&mode); err(1, "DIOCWLABEL %s", dev); } ioctl(fd, DIOCWLABEL, (char *)&mode); if (verbose) fprintf(stderr, "done.\n"); close(fd); } return 0; }