225 lines
7.5 KiB
C
225 lines
7.5 KiB
C
/* $NetBSD: edlabel.c,v 1.2 1996/08/02 11:22:11 ragge Exp $ */
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/*
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* Copyright (c) 1995 Ludd, University of Lule}, Sweden.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed at Ludd, University of
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* Lule}, Sweden and its contributors.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define DKTYPENAMES
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#include "sys/param.h"
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#include "sys/disklabel.h"
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#include "lib/libsa/stand.h"
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#include "ufs/ffs/fs.h"
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struct disklabel dlabel;
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char bootblock[8192];
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void
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showlabel()
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{
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struct disklabel *lp;
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struct partition *pp;
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int i, j;
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lp = &dlabel;
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printf("\n\ndisk type %d (%s), %s: %s%s%s\n", lp->d_type, lp->d_type
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<DKMAXTYPES?dktypenames[lp->d_type]:dktypenames[0], lp->d_typename,
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lp->d_flags & D_REMOVABLE?" removable":"", lp->d_flags & D_ECC?
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" ecc":"", lp->d_flags & D_BADSECT?" badsect":"");
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printf("interleave %d, rpm %d, trackskew %d, cylinderskew %d\n",
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lp->d_interleave, lp->d_rpm, lp->d_trackskew, lp->d_cylskew);
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printf("headswitch %d, track-to-track %d, drivedata: %d %d %d %d %d\n",
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lp->d_headswitch, lp->d_trkseek, lp->d_drivedata[0],
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lp->d_drivedata[1], lp->d_drivedata[2], lp->d_drivedata[3],
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lp->d_drivedata[4]);
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printf("\nbytes/sector: %d\n", lp->d_secsize);
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printf("sectors/track: %d\n", lp->d_nsectors);
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printf("tracks/cylinder: %d\n", lp->d_ntracks);
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printf("sectors/cylinder: %d\n", lp->d_secpercyl);
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printf("cylinders: %d\n", lp->d_ncylinders);
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printf("\n%d partitions:\n", lp->d_npartitions);
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printf(" size offset\n");
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pp = lp->d_partitions;
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for (i = 0; i < lp->d_npartitions; i++) {
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printf("%c: %d, %d\n", 97 + i, lp->d_partitions[i].p_size,
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lp->d_partitions[i].p_offset);
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}
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printf("\n");
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}
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setdefaultlabel()
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{
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printf("Sorry, not implemented yet. Later...\n\n");
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}
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#define GETNUM(out, num) printf(out, num);gets(store); \
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if (*store) num = atoi(store);
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#define GETNUM2(out, num1, num) printf(out, num1, num);gets(store); \
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if (*store) num = atoi(store);
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#define GETSTR(out, str) printf(out, str);gets(store); \
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if (*store) bcopy(store, str, strlen(store));
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#define FLAGS(out, flag) printf(out, lp->d_flags & flag?'y':'n');gets(store); \
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if (*store == 'y' || *store == 'Y') lp->d_flags |= flag; \
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else lp->d_flags &= ~flag;
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editlabel()
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{
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struct disklabel *lp;
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char store[256];
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int i;
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lp = &dlabel;
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printf("\nFirst set disk type. Valid types are:\n");
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for (i = 0; i < DKMAXTYPES; i++)
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printf("%d %s\n", i, dktypenames[i]);
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GETNUM("\nNumeric disk type? [%d] ", lp->d_type);
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GETSTR("Disk name? [%s] ", lp->d_typename);
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FLAGS("badsectoring? [%c] ", D_BADSECT);
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FLAGS("ecc? [%c] ", D_ECC);
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FLAGS("removable? [%c] ", D_REMOVABLE);
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GETNUM("Interleave? [%d] ", lp->d_interleave);
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GETNUM("rpm? [%d] ", lp->d_rpm);
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GETNUM("trackskew? [%d] ", lp->d_trackskew);
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GETNUM("cylinderskew? [%d] ", lp->d_cylskew);
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GETNUM("headswitch? [%d] ", lp->d_headswitch);
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GETNUM("track-to-track? [%d] ", lp->d_trkseek);
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GETNUM("drivedata 0? [%d] ", lp->d_drivedata[0]);
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GETNUM("drivedata 1? [%d] ", lp->d_drivedata[1]);
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GETNUM("drivedata 2? [%d] ", lp->d_drivedata[2]);
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GETNUM("drivedata 3? [%d] ", lp->d_drivedata[3]);
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GETNUM("drivedata 4? [%d] ", lp->d_drivedata[4]);
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lp->d_secsize = 512;
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GETNUM("\nbytes/sector? [%d] ", lp->d_secsize);
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GETNUM("sectors/track? [%d] ", lp->d_nsectors);
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GETNUM("tracks/cylinder? [%d] ", lp->d_ntracks);
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lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks;
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GETNUM("sectors/cylinder? [%d] ", lp->d_secpercyl);
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GETNUM("cylinders? [%d] ", lp->d_ncylinders);
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lp->d_npartitions = MAXPARTITIONS;
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for (i = 0; i < 8; i++) {
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GETNUM2("%c partition: offset? [%d] ", 97 + i,
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lp->d_partitions[i].p_offset);
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GETNUM(" size? [%d] ", lp->d_partitions[i].p_size);
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}
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}
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int bootdev;
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void
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Xmain()
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{
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register bdev asm("r10");
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struct open_file file;
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char diskname[64], *msg, *filename, indata[64];
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int i, rsize;
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bootdev = bdev;
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printf("With this program you can modify everything in the on-disk\n");
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printf("disklabel. To do something useful you must know the exact\n");
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printf("geometry of your disk, and have ideas about how you want\n");
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printf("your partitions to be placed on disk. Some hints:\n");
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printf("The a partition should be at least ~20000 blocks, the\n");
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printf("b (swap) is depending on your use of the machine but it\n");
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printf("should almost never be less than ~32000 blocks.\n\n");
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printf("Disk geometry for most DEC disks can be found in the disktab");
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printf("\nfile, and disknames is listed in the installation notes.\n");
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printf("\nRemember that disk names is given as disk(adapt, ctrl, ");
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printf("disk, part)\nwhen using the installation tools.\n\n");
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autoconf();
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igen:
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printf("Label which disk? ");
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gets(diskname);
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if (*diskname == 0) goto igen;
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if (devopen(&file, diskname, &filename)) {
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printf("cannot open %s\n", diskname);
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goto igen;
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}
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if ((*file.f_dev->dv_strategy)(file.f_devdata, F_READ,
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(daddr_t)0, 8192, bootblock, &rsize)) {
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printf("cannot read label block\n");
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goto igen;
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}
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if (msg = (char *) getdisklabel(LABELOFFSET + bootblock, &dlabel))
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printf("%s: %s\n", diskname, msg);
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do {
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printf("(E)dit, (S)how, (D)efaults, (W)rite, (Q)uit) : ");
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gets(indata);
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switch (*indata) {
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case ('e'):
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case ('E'):
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editlabel();
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break;
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case ('s'):
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case ('S'):
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showlabel();
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break;
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case ('d'):
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case ('D'):
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setdefaultlabel();
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break;
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case ('w'):
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case ('W'):
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dlabel.d_magic = DISKMAGIC;
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dlabel.d_magic2 = DISKMAGIC;
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dlabel.d_bbsize = BBSIZE;
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dlabel.d_sbsize = SBSIZE;
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dlabel.d_checksum = 0;
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dlabel.d_checksum = dkcksum(&dlabel);
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bcopy(&dlabel, LABELOFFSET + bootblock,
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sizeof(struct disklabel));
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if ((*file.f_dev->dv_strategy)(file.f_devdata, F_WRITE,
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(daddr_t)0, 8192, bootblock, &rsize)) {
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printf("cannot write label sectors.\n");
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break;
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}
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printf("\nThis program does not (yet) write");
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printf(" bootblocks, only disklabel.\n");
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printf("Remember to write the bootblocks from the ");
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printf("miniroot later with the\ncommand ");
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printf("\"disklabel -B <diskname>\".\n\n");
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break;
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case ('q'):
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case ('Q'):
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default:
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break;
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}
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} while (*indata != 'q' && *indata != 'Q');
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goto igen;
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}
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