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hellwig |
/*
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* dsklbl.c -- show or write a disklabel onto a NetBSD partition
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include "types.h"
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#include "disklabel.h"
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/**************************************************************/
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#define SSIZE 512 /* disk sector size in bytes */
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#define BSIZE 8192 /* disk block size in bytes */
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/**************************************************************/
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void error(char *fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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printf("Error: ");
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vprintf(fmt, ap);
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printf("\n");
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va_end(ap);
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exit(1);
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}
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/**************************************************************/
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unsigned int read4FromEco(unsigned char *p) {
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return (unsigned int) p[0] << 24 |
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(unsigned int) p[1] << 16 |
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(unsigned int) p[2] << 8 |
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(unsigned int) p[3] << 0;
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}
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void write4ToEco(unsigned char *p, unsigned int data) {
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p[0] = data >> 24;
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p[1] = data >> 16;
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p[2] = data >> 8;
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p[3] = data >> 0;
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}
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unsigned short read2FromEco(unsigned char *p) {
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return (unsigned short) p[0] << 8 |
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(unsigned short) p[1] << 0;
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}
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void write2ToEco(unsigned char *p, unsigned short data) {
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p[0] = data >> 8;
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p[1] = data >> 0;
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}
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void conv4FromEcoToX86(unsigned char *p) {
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unsigned int data;
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data = read4FromEco(p);
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* (unsigned int *) p = data;
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}
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void conv4FromX86ToEco(unsigned char *p) {
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unsigned int data;
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data = * (unsigned int *) p;
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write4ToEco(p, data);
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}
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void conv2FromEcoToX86(unsigned char *p) {
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unsigned short data;
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data = read2FromEco(p);
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* (unsigned short *) p = data;
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}
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void conv2FromX86ToEco(unsigned char *p) {
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unsigned short data;
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data = * (unsigned short *) p;
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write2ToEco(p, data);
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}
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/**************************************************************/
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uint16_t chksum(DiskLabel *lp, int numParts) {
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uint16_t *start;
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uint16_t *end;
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uint16_t sum;
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start = (uint16_t *) lp;
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end = (uint16_t *) &lp->d_parts[numParts];
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sum = 0;
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while (start < end) {
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sum ^= *start++;
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}
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return sum;
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}
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/**************************************************************/
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void dlFromEcoToX86(DiskLabel *lp) {
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int i;
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int numParts;
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conv4FromEcoToX86((unsigned char *) &lp->d_magic);
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conv2FromEcoToX86((unsigned char *) &lp->d_type);
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conv2FromEcoToX86((unsigned char *) &lp->d_subtype);
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conv4FromEcoToX86((unsigned char *) &lp->d_secsize);
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conv4FromEcoToX86((unsigned char *) &lp->d_nsectors);
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conv4FromEcoToX86((unsigned char *) &lp->d_ntracks);
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conv4FromEcoToX86((unsigned char *) &lp->d_ncylinders);
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conv4FromEcoToX86((unsigned char *) &lp->d_secpercyl);
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conv4FromEcoToX86((unsigned char *) &lp->d_secperunit);
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conv2FromEcoToX86((unsigned char *) &lp->d_sparespertrack);
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conv2FromEcoToX86((unsigned char *) &lp->d_sparespercyl);
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conv4FromEcoToX86((unsigned char *) &lp->d_acylinders);
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conv2FromEcoToX86((unsigned char *) &lp->d_rpm);
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conv2FromEcoToX86((unsigned char *) &lp->d_interleave);
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conv2FromEcoToX86((unsigned char *) &lp->d_trackskew);
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conv2FromEcoToX86((unsigned char *) &lp->d_cylskew);
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conv4FromEcoToX86((unsigned char *) &lp->d_headswitch);
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conv4FromEcoToX86((unsigned char *) &lp->d_trkseek);
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conv4FromEcoToX86((unsigned char *) &lp->d_flags);
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for (i = 0; i < NDDATA; i++) {
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conv4FromEcoToX86((unsigned char *) &lp->d_drivedata[i]);
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}
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for (i = 0; i < NSPARE; i++) {
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conv4FromEcoToX86((unsigned char *) &lp->d_spare[i]);
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}
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conv4FromEcoToX86((unsigned char *) &lp->d_magic2);
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conv2FromEcoToX86((unsigned char *) &lp->d_checksum);
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conv2FromEcoToX86((unsigned char *) &lp->d_npartitions);
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numParts = lp->d_npartitions;
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if (numParts < 0 || numParts > MAXPARTS) {
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printf("Warning: number of partitions out of range!\n");
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numParts = MAXPARTS;
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}
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conv4FromEcoToX86((unsigned char *) &lp->d_bbsize);
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conv4FromEcoToX86((unsigned char *) &lp->d_sbsize);
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for (i = 0; i < MAXPARTS; i++) {
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conv4FromEcoToX86((unsigned char *) &lp->d_parts[i].p_size);
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conv4FromEcoToX86((unsigned char *) &lp->d_parts[i].p_offset);
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conv4FromEcoToX86((unsigned char *) &lp->d_parts[i].p_fsize);
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conv2FromEcoToX86((unsigned char *) &lp->d_parts[i].p_cpg);
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}
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/* after byte-swapping, the checksum must be calculated again */
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lp->d_checksum = 0;
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lp->d_checksum = chksum(lp, numParts);
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/* Attention: the new checksum must not be converted! */
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}
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void dlFromX86ToEco(DiskLabel *lp) {
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int i;
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int numParts;
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conv4FromX86ToEco((unsigned char *) &lp->d_magic);
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conv2FromX86ToEco((unsigned char *) &lp->d_type);
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conv2FromX86ToEco((unsigned char *) &lp->d_subtype);
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conv4FromX86ToEco((unsigned char *) &lp->d_secsize);
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conv4FromX86ToEco((unsigned char *) &lp->d_nsectors);
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conv4FromX86ToEco((unsigned char *) &lp->d_ntracks);
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conv4FromX86ToEco((unsigned char *) &lp->d_ncylinders);
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conv4FromX86ToEco((unsigned char *) &lp->d_secpercyl);
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conv4FromX86ToEco((unsigned char *) &lp->d_secperunit);
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conv2FromX86ToEco((unsigned char *) &lp->d_sparespertrack);
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conv2FromX86ToEco((unsigned char *) &lp->d_sparespercyl);
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conv4FromX86ToEco((unsigned char *) &lp->d_acylinders);
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conv2FromX86ToEco((unsigned char *) &lp->d_rpm);
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conv2FromX86ToEco((unsigned char *) &lp->d_interleave);
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conv2FromX86ToEco((unsigned char *) &lp->d_trackskew);
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conv2FromX86ToEco((unsigned char *) &lp->d_cylskew);
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conv4FromX86ToEco((unsigned char *) &lp->d_headswitch);
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conv4FromX86ToEco((unsigned char *) &lp->d_trkseek);
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conv4FromX86ToEco((unsigned char *) &lp->d_flags);
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for (i = 0; i < NDDATA; i++) {
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conv4FromX86ToEco((unsigned char *) &lp->d_drivedata[i]);
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}
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for (i = 0; i < NSPARE; i++) {
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conv4FromX86ToEco((unsigned char *) &lp->d_spare[i]);
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}
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conv4FromX86ToEco((unsigned char *) &lp->d_magic2);
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conv2FromX86ToEco((unsigned char *) &lp->d_checksum);
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numParts = lp->d_npartitions;
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if (numParts < 0 || numParts > MAXPARTS) {
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printf("Warning: number of partitions out of range!\n");
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numParts = MAXPARTS;
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}
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conv2FromX86ToEco((unsigned char *) &lp->d_npartitions);
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conv4FromX86ToEco((unsigned char *) &lp->d_bbsize);
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conv4FromX86ToEco((unsigned char *) &lp->d_sbsize);
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for (i = 0; i < MAXPARTS; i++) {
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conv4FromX86ToEco((unsigned char *) &lp->d_parts[i].p_size);
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conv4FromX86ToEco((unsigned char *) &lp->d_parts[i].p_offset);
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conv4FromX86ToEco((unsigned char *) &lp->d_parts[i].p_fsize);
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conv2FromX86ToEco((unsigned char *) &lp->d_parts[i].p_cpg);
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}
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/* after byte-swapping, the checksum must be calculated again */
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lp->d_checksum = 0;
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lp->d_checksum = chksum(lp, numParts);
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/* Attention: the new checksum must not be converted! */
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}
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/**************************************************************/
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FILE *diskFile;
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unsigned long sliceStart;
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unsigned long sliceSize;
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void readSector(unsigned int sno, unsigned char *buf) {
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int n;
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if (sno >= sliceSize) {
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error("illegal sector number %u in readSector()", sno);
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}
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fseek(diskFile, (sliceStart + sno) * SSIZE, SEEK_SET);
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n = fread(buf, 1, SSIZE, diskFile);
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if (n != SSIZE) {
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error("read error on sector %u", sno);
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}
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}
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| 246 |
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| 247 |
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void writeSector(unsigned int sno, unsigned char *buf) {
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| 248 |
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int n;
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| 249 |
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| 250 |
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if (sno >= sliceSize) {
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error("illegal sector number %u in writeSector()", sno);
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}
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fseek(diskFile, (sliceStart + sno) * SSIZE, SEEK_SET);
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n = fwrite(buf, 1, SSIZE, diskFile);
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if (n != SSIZE) {
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error("write error on sector %u", sno);
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}
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| 258 |
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}
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| 259 |
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| 260 |
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| 261 |
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/**************************************************************/
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| 262 |
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| 263 |
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| 264 |
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void showDiskLabel(DiskLabel *lp) {
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| 265 |
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int i;
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| 266 |
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int c;
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| 267 |
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int numParts;
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| 268 |
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| 269 |
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printf("magic number : 0x%08X\n", lp->d_magic);
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| 270 |
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if (lp->d_magic != DSKMAGIC) {
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printf("Warning: wrong magic number!\n");
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}
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| 273 |
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printf("type : 0x%04X\n", lp->d_type);
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| 274 |
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printf("subtype : 0x%04X\n", lp->d_subtype);
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| 275 |
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printf("typename : '");
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| 276 |
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for (i = 0; i < NTYPENAME; i++) {
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| 277 |
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c = lp->d_typename[i];
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| 278 |
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if (c == 0) {
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| 279 |
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break;
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| 280 |
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}
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| 281 |
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if (c >= 0x20 && c < 0x7F) {
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| 282 |
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printf("%c", c);
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| 283 |
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} else {
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| 284 |
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printf(".");
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| 285 |
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}
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| 286 |
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}
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| 287 |
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printf("'\n");
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| 288 |
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printf("packname : '");
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| 289 |
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for (i = 0; i < NPACKNAME; i++) {
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| 290 |
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c = lp->d_packname[i];
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| 291 |
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if (c == 0) {
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| 292 |
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break;
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| 293 |
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}
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| 294 |
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if (c >= 0x20 && c < 0x7F) {
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| 295 |
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printf("%c", c);
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| 296 |
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} else {
|
| 297 |
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printf(".");
|
| 298 |
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}
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| 299 |
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}
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| 300 |
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printf("'\n");
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| 301 |
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printf("secsize : 0x%08X\n", lp->d_secsize);
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| 302 |
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printf("nsectors : 0x%08X\n", lp->d_nsectors);
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| 303 |
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printf("ntracks : 0x%08X\n", lp->d_ntracks);
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| 304 |
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printf("ncylinders : 0x%08X\n", lp->d_ncylinders);
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| 305 |
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printf("secpercyl : 0x%08X\n", lp->d_secpercyl);
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| 306 |
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printf("secperunit : 0x%08X\n", lp->d_secperunit);
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| 307 |
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printf("sparespertrack : 0x%04X\n", lp->d_sparespertrack);
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| 308 |
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printf("sparespercyl : 0x%04X\n", lp->d_sparespercyl);
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| 309 |
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printf("acylinders : 0x%08X\n", lp->d_acylinders);
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| 310 |
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printf("rpm : 0x%04X\n", lp->d_rpm);
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| 311 |
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printf("interleave : 0x%04X\n", lp->d_interleave);
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| 312 |
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printf("trackskew : 0x%04X\n", lp->d_trackskew);
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| 313 |
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printf("cylskew : 0x%04X\n", lp->d_cylskew);
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| 314 |
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printf("headswitch : 0x%08X\n", lp->d_headswitch);
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| 315 |
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printf("trkseek : 0x%08X\n", lp->d_trkseek);
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| 316 |
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printf("flags : 0x%08X\n", lp->d_flags);
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| 317 |
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printf("magic2 : 0x%08X\n", lp->d_magic2);
|
| 318 |
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if (lp->d_magic2 != DSKMAGIC) {
|
| 319 |
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printf("Warning: wrong magic number!\n");
|
| 320 |
|
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}
|
| 321 |
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printf("checksum : 0x%04X\n", lp->d_checksum);
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| 322 |
160 |
hellwig |
printf("NOTE: The checksum may have been re-computed because of\n");
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| 323 |
|
|
printf("endianness conversion, and thus may differ from the disk!\n");
|
| 324 |
17 |
hellwig |
printf("bbsize : 0x%08X\n", lp->d_bbsize);
|
| 325 |
|
|
printf("sbsize : 0x%08X\n", lp->d_sbsize);
|
| 326 |
|
|
printf("npartitions : 0x%04X\n", lp->d_npartitions);
|
| 327 |
|
|
numParts = lp->d_npartitions;
|
| 328 |
|
|
if (numParts < 0 || numParts > MAXPARTS) {
|
| 329 |
|
|
printf("Warning: number of partitions out of range!\n");
|
| 330 |
|
|
numParts = MAXPARTS;
|
| 331 |
|
|
}
|
| 332 |
|
|
for (i = 0; i < numParts; i++) {
|
| 333 |
|
|
if (lp->d_parts[i].p_size == 0) {
|
| 334 |
|
|
continue;
|
| 335 |
|
|
}
|
| 336 |
|
|
printf(" partition %c:\n", 'a' + i);
|
| 337 |
|
|
printf(" size : 0x%08X\n", lp->d_parts[i].p_size);
|
| 338 |
|
|
printf(" offset : 0x%08X\n", lp->d_parts[i].p_offset);
|
| 339 |
|
|
printf(" fsize : 0x%08X\n", lp->d_parts[i].p_fsize);
|
| 340 |
|
|
printf(" fstype : 0x%02X\n", lp->d_parts[i].p_fstype);
|
| 341 |
|
|
printf(" frag : 0x%02X\n", lp->d_parts[i].p_frag);
|
| 342 |
|
|
printf(" cpg : 0x%04X\n", lp->d_parts[i].p_cpg);
|
| 343 |
|
|
}
|
| 344 |
|
|
}
|
| 345 |
|
|
|
| 346 |
|
|
|
| 347 |
|
|
/**************************************************************/
|
| 348 |
|
|
|
| 349 |
|
|
|
| 350 |
|
|
void initDiskLabel(DiskLabel *lp) {
|
| 351 |
|
|
int i;
|
| 352 |
|
|
|
| 353 |
|
|
lp->d_magic = 0;
|
| 354 |
|
|
lp->d_type = 0;
|
| 355 |
|
|
lp->d_subtype = 0;
|
| 356 |
|
|
for (i = 0; i < NTYPENAME; i++) {
|
| 357 |
|
|
lp->d_typename[i] = 0;
|
| 358 |
|
|
}
|
| 359 |
|
|
for (i = 0; i < NPACKNAME; i++) {
|
| 360 |
|
|
lp->d_packname[i] = 0;
|
| 361 |
|
|
}
|
| 362 |
|
|
lp->d_secsize = 0;
|
| 363 |
|
|
lp->d_nsectors = 0;
|
| 364 |
|
|
lp->d_ntracks = 0;
|
| 365 |
|
|
lp->d_ncylinders = 0;
|
| 366 |
|
|
lp->d_secpercyl = 0;
|
| 367 |
|
|
lp->d_secperunit = 0;
|
| 368 |
|
|
lp->d_sparespertrack = 0;
|
| 369 |
|
|
lp->d_sparespercyl = 0;
|
| 370 |
|
|
lp->d_acylinders = 0;
|
| 371 |
|
|
lp->d_rpm = 0;
|
| 372 |
|
|
lp->d_interleave = 0;
|
| 373 |
|
|
lp->d_trackskew = 0;
|
| 374 |
|
|
lp->d_cylskew = 0;
|
| 375 |
|
|
lp->d_headswitch = 0;
|
| 376 |
|
|
lp->d_trkseek = 0;
|
| 377 |
|
|
lp->d_flags = 0;
|
| 378 |
|
|
for (i = 0; i < NDDATA; i++) {
|
| 379 |
|
|
lp->d_drivedata[i] = 0;
|
| 380 |
|
|
}
|
| 381 |
|
|
for (i = 0; i < NSPARE; i++) {
|
| 382 |
|
|
lp->d_spare[i] = 0;
|
| 383 |
|
|
}
|
| 384 |
|
|
lp->d_magic2 = 0;
|
| 385 |
|
|
lp->d_checksum = 0;
|
| 386 |
|
|
lp->d_npartitions = 0;
|
| 387 |
|
|
lp->d_bbsize = 0;
|
| 388 |
|
|
lp->d_sbsize = 0;
|
| 389 |
|
|
for (i = 0; i < MAXPARTS; i++) {
|
| 390 |
|
|
lp->d_parts[i].p_size = 0;
|
| 391 |
|
|
lp->d_parts[i].p_offset = 0;
|
| 392 |
|
|
lp->d_parts[i].p_fsize = 0;
|
| 393 |
|
|
lp->d_parts[i].p_fstype = 0;
|
| 394 |
|
|
lp->d_parts[i].p_frag = 0;
|
| 395 |
|
|
lp->d_parts[i].p_cpg = 0;
|
| 396 |
|
|
}
|
| 397 |
|
|
for (i = 0; i < PADSIZE; i++) {
|
| 398 |
|
|
lp->d_pad[i] = 0;
|
| 399 |
|
|
}
|
| 400 |
|
|
}
|
| 401 |
|
|
|
| 402 |
|
|
|
| 403 |
|
|
void fillDiskLabelDefault1(DiskLabel *lp) {
|
| 404 |
|
|
/* the default disklabel for a non-partitioned disk */
|
| 405 |
|
|
lp->d_magic = DSKMAGIC;
|
| 406 |
|
|
strcpy(lp->d_typename, "ECO32 SD-100M");
|
| 407 |
|
|
lp->d_secsize = 512;
|
| 408 |
|
|
lp->d_nsectors = 128;
|
| 409 |
|
|
lp->d_ntracks = 16;
|
| 410 |
|
|
lp->d_ncylinders = 100;
|
| 411 |
|
|
lp->d_secpercyl = 2048;
|
| 412 |
|
|
lp->d_secperunit = 204800;
|
| 413 |
|
|
lp->d_sparespertrack = 0;
|
| 414 |
|
|
lp->d_sparespercyl = 0;
|
| 415 |
|
|
lp->d_acylinders = 0;
|
| 416 |
|
|
lp->d_rpm = 3600;
|
| 417 |
|
|
lp->d_interleave = 1;
|
| 418 |
|
|
lp->d_trackskew = 0;
|
| 419 |
|
|
lp->d_cylskew = 0;
|
| 420 |
|
|
lp->d_headswitch = 0;
|
| 421 |
|
|
lp->d_trkseek = 0;
|
| 422 |
|
|
lp->d_flags = 0;
|
| 423 |
|
|
lp->d_magic2 = DSKMAGIC;
|
| 424 |
|
|
lp->d_checksum = 0;
|
| 425 |
|
|
lp->d_npartitions = 16;
|
| 426 |
|
|
lp->d_bbsize = 8192;
|
| 427 |
|
|
lp->d_sbsize = 8192;
|
| 428 |
|
|
/*-------------------------------*/
|
| 429 |
|
|
lp->d_parts[0].p_size = 172032;
|
| 430 |
|
|
lp->d_parts[0].p_offset = 0;
|
| 431 |
|
|
lp->d_parts[0].p_fsize = 1024;
|
| 432 |
|
|
lp->d_parts[0].p_fstype = 7;
|
| 433 |
|
|
lp->d_parts[0].p_frag = 8;
|
| 434 |
|
|
/*-------------------------------*/
|
| 435 |
|
|
lp->d_parts[1].p_size = 32768;
|
| 436 |
|
|
lp->d_parts[1].p_offset = 172032;
|
| 437 |
|
|
lp->d_parts[1].p_fsize = 0;
|
| 438 |
|
|
lp->d_parts[1].p_fstype = 1;
|
| 439 |
|
|
lp->d_parts[1].p_frag = 0;
|
| 440 |
|
|
/*-------------------------------*/
|
| 441 |
|
|
lp->d_parts[2].p_size = 204800;
|
| 442 |
|
|
lp->d_parts[2].p_offset = 0;
|
| 443 |
|
|
lp->d_parts[2].p_fsize = 0;
|
| 444 |
|
|
lp->d_parts[2].p_fstype = 0;
|
| 445 |
|
|
lp->d_parts[2].p_frag = 0;
|
| 446 |
|
|
/*-------------------------------*/
|
| 447 |
|
|
lp->d_checksum = chksum(lp, lp->d_npartitions);
|
| 448 |
|
|
}
|
| 449 |
|
|
|
| 450 |
|
|
|
| 451 |
|
|
void fillDiskLabelDefault2(DiskLabel *lp) {
|
| 452 |
|
|
/* the default disklabel for a partitioned disk */
|
| 453 |
|
|
lp->d_magic = DSKMAGIC;
|
| 454 |
|
|
strcpy(lp->d_typename, "ECO32 SD-100M");
|
| 455 |
|
|
lp->d_secsize = 512;
|
| 456 |
|
|
lp->d_nsectors = 128;
|
| 457 |
|
|
lp->d_ntracks = 16;
|
| 458 |
|
|
lp->d_ncylinders = 100;
|
| 459 |
|
|
lp->d_secpercyl = 2048;
|
| 460 |
|
|
lp->d_secperunit = 204800;
|
| 461 |
|
|
lp->d_sparespertrack = 0;
|
| 462 |
|
|
lp->d_sparespercyl = 0;
|
| 463 |
|
|
lp->d_acylinders = 0;
|
| 464 |
|
|
lp->d_rpm = 3600;
|
| 465 |
|
|
lp->d_interleave = 1;
|
| 466 |
|
|
lp->d_trackskew = 0;
|
| 467 |
|
|
lp->d_cylskew = 0;
|
| 468 |
|
|
lp->d_headswitch = 0;
|
| 469 |
|
|
lp->d_trkseek = 0;
|
| 470 |
|
|
lp->d_flags = 0;
|
| 471 |
|
|
lp->d_magic2 = DSKMAGIC;
|
| 472 |
|
|
lp->d_checksum = 0;
|
| 473 |
|
|
lp->d_npartitions = 16;
|
| 474 |
|
|
lp->d_bbsize = 8192;
|
| 475 |
|
|
lp->d_sbsize = 8192;
|
| 476 |
|
|
/*-------------------------------*/
|
| 477 |
|
|
lp->d_parts[0].p_size = 106496;
|
| 478 |
|
|
lp->d_parts[0].p_offset = 81920;
|
| 479 |
|
|
lp->d_parts[0].p_fsize = 1024;
|
| 480 |
|
|
lp->d_parts[0].p_fstype = 7;
|
| 481 |
|
|
lp->d_parts[0].p_frag = 8;
|
| 482 |
|
|
/*-------------------------------*/
|
| 483 |
|
|
lp->d_parts[1].p_size = 16384;
|
| 484 |
|
|
lp->d_parts[1].p_offset = 188416;
|
| 485 |
|
|
lp->d_parts[1].p_fsize = 0;
|
| 486 |
|
|
lp->d_parts[1].p_fstype = 1;
|
| 487 |
|
|
lp->d_parts[1].p_frag = 0;
|
| 488 |
|
|
/*-------------------------------*/
|
| 489 |
|
|
lp->d_parts[2].p_size = 122880;
|
| 490 |
|
|
lp->d_parts[2].p_offset = 81920;
|
| 491 |
|
|
lp->d_parts[2].p_fsize = 0;
|
| 492 |
|
|
lp->d_parts[2].p_fstype = 0;
|
| 493 |
|
|
lp->d_parts[2].p_frag = 0;
|
| 494 |
|
|
/*-------------------------------*/
|
| 495 |
|
|
lp->d_parts[3].p_size = 204800;
|
| 496 |
|
|
lp->d_parts[3].p_offset = 0;
|
| 497 |
|
|
lp->d_parts[3].p_fsize = 0;
|
| 498 |
|
|
lp->d_parts[3].p_fstype = 0;
|
| 499 |
|
|
lp->d_parts[3].p_frag = 0;
|
| 500 |
|
|
/*-------------------------------*/
|
| 501 |
|
|
lp->d_checksum = chksum(lp, lp->d_npartitions);
|
| 502 |
|
|
}
|
| 503 |
|
|
|
| 504 |
|
|
|
| 505 |
|
|
void fillDiskLabelFromFile(DiskLabel *lp, char *fileName) {
|
| 506 |
|
|
error("configuration file not supported yet");
|
| 507 |
|
|
}
|
| 508 |
|
|
|
| 509 |
|
|
|
| 510 |
|
|
/**************************************************************/
|
| 511 |
|
|
|
| 512 |
|
|
|
| 513 |
|
|
int checkEndian(DiskLabel *lp) {
|
| 514 |
|
|
int endian;
|
| 515 |
|
|
uint32_t magic;
|
| 516 |
|
|
uint16_t numParts;
|
| 517 |
|
|
uint16_t sum;
|
| 518 |
|
|
|
| 519 |
|
|
magic = lp->d_magic;
|
| 520 |
|
|
if (magic != lp->d_magic2) {
|
| 521 |
|
|
printf("Warning: magic numbers differ!\n");
|
| 522 |
|
|
return -1;
|
| 523 |
|
|
}
|
| 524 |
|
|
if (magic == DSKMAGIC) {
|
| 525 |
|
|
/* little endian */
|
| 526 |
|
|
endian = 1;
|
| 527 |
|
|
} else {
|
| 528 |
|
|
/* assume big endian */
|
| 529 |
|
|
endian = 0;
|
| 530 |
|
|
/* and check */
|
| 531 |
|
|
conv4FromEcoToX86((unsigned char *) &magic);
|
| 532 |
|
|
if (magic != DSKMAGIC) {
|
| 533 |
|
|
/* neither little endian nor big endian */
|
| 534 |
|
|
printf("Warning: wrong magic number!\n");
|
| 535 |
|
|
return -2;
|
| 536 |
|
|
}
|
| 537 |
|
|
}
|
| 538 |
|
|
numParts = lp->d_npartitions;
|
| 539 |
|
|
if (endian == 0) {
|
| 540 |
|
|
conv2FromEcoToX86((unsigned char *) &numParts);
|
| 541 |
|
|
}
|
| 542 |
|
|
sum = chksum(lp, (int) numParts);
|
| 543 |
|
|
if (sum != 0) {
|
| 544 |
|
|
printf("Warning: wrong checksum!\n");
|
| 545 |
|
|
return -3;
|
| 546 |
|
|
}
|
| 547 |
|
|
return endian;
|
| 548 |
|
|
}
|
| 549 |
|
|
|
| 550 |
|
|
|
| 551 |
|
|
/**************************************************************/
|
| 552 |
|
|
|
| 553 |
|
|
|
| 554 |
|
|
void usage(char *myself) {
|
| 555 |
|
|
printf("Usage:\n");
|
| 556 |
|
|
printf(" %s -c <disk> <partition or '*'>\n", myself);
|
| 557 |
|
|
printf(" %s -t <disk> <partition or '*'>\n", myself);
|
| 558 |
|
|
printf(" %s -rb <disk> <partition or '*'>\n", myself);
|
| 559 |
|
|
printf(" %s -rl <disk> <partition or '*'>\n", myself);
|
| 560 |
|
|
printf(" %s -wb <disk> <partition or '*'> [<config file>]\n", myself);
|
| 561 |
|
|
printf(" %s -wl <disk> <partition or '*'> [<config file>]\n", myself);
|
| 562 |
|
|
printf("c: check, t: toggle endianness\n");
|
| 563 |
|
|
printf("r: read, w: write disklabel\n");
|
| 564 |
|
|
printf("b: big, l: little endian\n");
|
| 565 |
|
|
}
|
| 566 |
|
|
|
| 567 |
|
|
|
| 568 |
|
|
int main(int argc, char *argv[]) {
|
| 569 |
|
|
int optionCheck;
|
| 570 |
|
|
int optionToggle;
|
| 571 |
|
|
int optionRead;
|
| 572 |
|
|
int optionBig;
|
| 573 |
|
|
char *diskName;
|
| 574 |
|
|
int part;
|
| 575 |
|
|
char *endptr;
|
| 576 |
|
|
unsigned char partTable[SSIZE];
|
| 577 |
|
|
unsigned char *ptptr;
|
| 578 |
|
|
unsigned long partType;
|
| 579 |
|
|
DiskLabel dl;
|
| 580 |
|
|
int endian;
|
| 581 |
|
|
|
| 582 |
|
|
if (argc != 4 && argc != 5) {
|
| 583 |
|
|
usage(argv[0]);
|
| 584 |
|
|
exit(1);
|
| 585 |
|
|
}
|
| 586 |
|
|
if (strcmp(argv[1], "-c") != 0 &&
|
| 587 |
|
|
strcmp(argv[1], "-t") != 0 &&
|
| 588 |
|
|
strcmp(argv[1], "-rb") != 0 &&
|
| 589 |
|
|
strcmp(argv[1], "-rl") != 0 &&
|
| 590 |
|
|
strcmp(argv[1], "-wb") != 0 &&
|
| 591 |
|
|
strcmp(argv[1], "-wl") != 0) {
|
| 592 |
|
|
usage(argv[0]);
|
| 593 |
|
|
exit(1);
|
| 594 |
|
|
}
|
| 595 |
|
|
if (strcmp(argv[1], "-c") == 0) {
|
| 596 |
|
|
optionCheck = 1;
|
| 597 |
|
|
optionToggle = 0;
|
| 598 |
|
|
optionRead = 0;
|
| 599 |
|
|
optionBig = 0;
|
| 600 |
|
|
} else
|
| 601 |
|
|
if (strcmp(argv[1], "-t") == 0) {
|
| 602 |
|
|
optionCheck = 1;
|
| 603 |
|
|
optionToggle = 1;
|
| 604 |
|
|
optionRead = 0;
|
| 605 |
|
|
optionBig = 0;
|
| 606 |
|
|
} else {
|
| 607 |
|
|
optionCheck = 0;
|
| 608 |
|
|
optionToggle = 0;
|
| 609 |
|
|
optionRead = (argv[1][1] == 'r');
|
| 610 |
|
|
optionBig = (argv[1][2] == 'b');
|
| 611 |
|
|
}
|
| 612 |
|
|
diskName = argv[2];
|
| 613 |
|
|
diskFile = fopen(diskName, "r+b");
|
| 614 |
|
|
if (diskFile == NULL) {
|
| 615 |
|
|
error("cannot open disk image '%s'", diskName);
|
| 616 |
|
|
}
|
| 617 |
|
|
if (strcmp(argv[3], "*") == 0) {
|
| 618 |
|
|
/* whole disk contains one single slice */
|
| 619 |
|
|
sliceStart = 0;
|
| 620 |
|
|
fseek(diskFile, 0, SEEK_END);
|
| 621 |
|
|
sliceSize = ftell(diskFile) / SSIZE;
|
| 622 |
|
|
} else {
|
| 623 |
|
|
/* argv[3] is partition number of NetBSD slice */
|
| 624 |
|
|
part = strtoul(argv[3], &endptr, 10);
|
| 625 |
|
|
if (*endptr != '\0' || part < 0 || part > 15) {
|
| 626 |
|
|
error("illegal partition number '%s'", argv[3]);
|
| 627 |
|
|
}
|
| 628 |
|
|
fseek(diskFile, 1 * SSIZE, SEEK_SET);
|
| 629 |
|
|
if (fread(partTable, 1, SSIZE, diskFile) != SSIZE) {
|
| 630 |
|
|
error("cannot read partition table of disk '%s'", diskName);
|
| 631 |
|
|
}
|
| 632 |
|
|
ptptr = partTable + part * 32;
|
| 633 |
|
|
partType = read4FromEco(ptptr + 0);
|
| 634 |
|
|
if ((partType & 0x7FFFFFFF) != 0x000000A9) {
|
| 635 |
|
|
error("partition %d of disk '%s' is not a NetBSD slice",
|
| 636 |
|
|
part, diskName);
|
| 637 |
|
|
}
|
| 638 |
|
|
sliceStart = read4FromEco(ptptr + 4);
|
| 639 |
|
|
sliceSize = read4FromEco(ptptr + 8);
|
| 640 |
|
|
}
|
| 641 |
|
|
printf("Slice size is %lu (0x%lX) sectors of %d bytes each.\n",
|
| 642 |
|
|
sliceSize, sliceSize, SSIZE);
|
| 643 |
|
|
if (optionCheck) {
|
| 644 |
|
|
/* check endianness */
|
| 645 |
|
|
readSector(1, (unsigned char *) &dl);
|
| 646 |
|
|
endian = checkEndian(&dl);
|
| 647 |
|
|
if (endian < 0) {
|
| 648 |
|
|
error("the endiannes of the disklabel could not be determined");
|
| 649 |
|
|
}
|
| 650 |
|
|
printf("The disklabel appears to be %s-endian.\n",
|
| 651 |
|
|
endian == 0 ? "big" : "little");
|
| 652 |
|
|
if (optionToggle) {
|
| 653 |
|
|
/* toggle endianness */
|
| 654 |
|
|
if (endian == 0) {
|
| 655 |
|
|
/* big -> little */
|
| 656 |
|
|
dlFromEcoToX86(&dl);
|
| 657 |
|
|
} else {
|
| 658 |
|
|
/* little -> big */
|
| 659 |
|
|
dlFromX86ToEco(&dl);
|
| 660 |
|
|
}
|
| 661 |
|
|
endian = checkEndian(&dl);
|
| 662 |
|
|
if (endian < 0) {
|
| 663 |
|
|
error("this should never happen");
|
| 664 |
|
|
}
|
| 665 |
|
|
printf("The disklabel has been converted to %s-endian.\n",
|
| 666 |
|
|
endian == 0 ? "big" : "little");
|
| 667 |
|
|
writeSector(1, (unsigned char *) &dl);
|
| 668 |
|
|
}
|
| 669 |
|
|
} else
|
| 670 |
|
|
if (optionRead) {
|
| 671 |
|
|
/* read and show disklabel */
|
| 672 |
|
|
readSector(1, (unsigned char *) &dl);
|
| 673 |
|
|
if (optionBig) {
|
| 674 |
|
|
dlFromEcoToX86(&dl);
|
| 675 |
|
|
}
|
| 676 |
|
|
showDiskLabel(&dl);
|
| 677 |
|
|
} else {
|
| 678 |
|
|
/* write disklabel */
|
| 679 |
|
|
initDiskLabel(&dl);
|
| 680 |
|
|
if (argc == 4) {
|
| 681 |
|
|
fillDiskLabelDefault2(&dl);
|
| 682 |
|
|
} else {
|
| 683 |
|
|
fillDiskLabelFromFile(&dl, argv[4]);
|
| 684 |
|
|
}
|
| 685 |
|
|
if (optionBig) {
|
| 686 |
|
|
dlFromX86ToEco(&dl);
|
| 687 |
|
|
}
|
| 688 |
|
|
writeSector(1, (unsigned char *) &dl);
|
| 689 |
|
|
}
|
| 690 |
|
|
fclose(diskFile);
|
| 691 |
|
|
return 0;
|
| 692 |
|
|
}
|
