static int
verify_sgi(int verbose)
{
	int Index[16];      /* list of valid partitions */
	int sortcount = 0;  /* number of used partitions, i.e. non-zero lengths */
	int entire = 0, i = 0;
	unsigned int start = 0;
	long long gap = 0;      /* count unused blocks */
	unsigned int lastblock = sgi_get_lastblock();

	clearfreelist();
	for (i = 0; i < 16; i++) {
		if (sgi_get_num_sectors(i) != 0) {
			Index[sortcount++] = i;
			if (sgi_get_sysid(i) == SGI_ENTIRE_DISK) {
				if (entire++ == 1) {
					if (verbose)
						printf("More than one entire disk entry present\n");
				}
			}
		}
	}
	if (sortcount == 0) {
		if (verbose)
			printf("No partitions defined\n");
		return (lastblock > 0) ? 1 : (lastblock == 0) ? 0 : -1;
	}
	qsort(Index, sortcount, sizeof(Index[0]), (void*)compare_start);
	if (sgi_get_sysid(Index[0]) == SGI_ENTIRE_DISK) {
		if ((Index[0] != 10) && verbose)
			printf("IRIX likes when Partition 11 covers the entire disk\n");
		if ((sgi_get_start_sector(Index[0]) != 0) && verbose)
			printf("The entire disk partition should start "
				"at block 0,\n"
				"not at diskblock %d\n",
				sgi_get_start_sector(Index[0]));
		if (debug)      /* I do not understand how some disks fulfil it */
			if ((sgi_get_num_sectors(Index[0]) != lastblock) && verbose)
				printf("The entire disk partition is only %d diskblock large,\n"
					"but the disk is %d diskblocks long\n",
					sgi_get_num_sectors(Index[0]), lastblock);
			lastblock = sgi_get_num_sectors(Index[0]);
	} else {
		if (verbose)
			printf("One Partition (#11) should cover the entire disk\n");
		if (debug > 2)
			printf("sysid=%d\tpartition=%d\n",
				sgi_get_sysid(Index[0]), Index[0]+1);
	}
	for (i = 1, start = 0; i < sortcount; i++) {
		int cylsize = sgi_get_nsect() * sgi_get_ntrks();

		if ((sgi_get_start_sector(Index[i]) % cylsize) != 0) {
			if (debug)      /* I do not understand how some disks fulfil it */
				if (verbose)
					printf("Partition %d does not start on cylinder boundary\n",
						Index[i]+1);
		}
		if (sgi_get_num_sectors(Index[i]) % cylsize != 0) {
			if (debug)      /* I do not understand how some disks fulfil it */
				if (verbose)
					printf("Partition %d does not end on cylinder boundary\n",
						Index[i]+1);
		}
		/* We cannot handle several "entire disk" entries. */
		if (sgi_get_sysid(Index[i]) == SGI_ENTIRE_DISK) continue;
		if (start > sgi_get_start_sector(Index[i])) {
			if (verbose)
				printf("Partitions %d and %d overlap by %d sectors\n",
					Index[i-1]+1, Index[i]+1,
					start - sgi_get_start_sector(Index[i]));
			if (gap > 0) gap = -gap;
			if (gap == 0) gap = -1;
		}
		if (start < sgi_get_start_sector(Index[i])) {
			if (verbose)
				printf("Unused gap of %8u sectors - sectors %8u-%8u\n",
					sgi_get_start_sector(Index[i]) - start,
					start, sgi_get_start_sector(Index[i])-1);
			gap += sgi_get_start_sector(Index[i]) - start;
			add2freelist(start, sgi_get_start_sector(Index[i]));
		}
		start = sgi_get_start_sector(Index[i])
			   + sgi_get_num_sectors(Index[i]);
		if (debug > 1) {
			if (verbose)
				printf("%2d:%12d\t%12d\t%12d\n", Index[i],
					sgi_get_start_sector(Index[i]),
					sgi_get_num_sectors(Index[i]),
					sgi_get_sysid(Index[i]));
		}
	}
	if (start < lastblock) {
		if (verbose)
			printf("Unused gap of %8u sectors - sectors %8u-%8u\n",
				lastblock - start, start, lastblock-1);
		gap += lastblock - start;
		add2freelist(start, lastblock);
	}
	/*
	 * Done with arithmetics
	 * Go for details now
	 */
	if (verbose) {
		if (!sgi_get_num_sectors(sgi_get_bootpartition())) {
			printf("\nThe boot partition does not exist\n");
		}
		if (!sgi_get_num_sectors(sgi_get_swappartition())) {
			printf("\nThe swap partition does not exist\n");
		} else {
			if ((sgi_get_sysid(sgi_get_swappartition()) != SGI_SWAP)
			 && (sgi_get_sysid(sgi_get_swappartition()) != LINUX_SWAP))
				printf("\nThe swap partition has no swap type\n");
		}
		if (sgi_check_bootfile("/unix"))
			printf("\tYou have chosen an unusual boot file name\n");
	}
	return (gap > 0) ? 1 : (gap == 0) ? 0 : -1;
}
Exemple #2
0
static int verify_disklabel(struct fdisk_context *cxt, int verbose)
{
	int Index[SGI_MAXPARTITIONS];	/* list of valid partitions */
	int sortcount = 0;		/* number of used partitions, i.e. non-zero lengths */
	int entire = 0, i = 0;
	unsigned int start = 0;
	long long gap = 0;	/* count unused blocks */
	unsigned int lastblock = sgi_get_lastblock(cxt);

	assert(cxt);
	assert(cxt->label);
	assert(fdisk_is_disklabel(cxt, SGI));

	clear_freelist(cxt);
	memset(Index, 0, sizeof(Index));

	for (i=0; i < SGI_MAXPARTITIONS; i++) {
		if (sgi_get_num_sectors(cxt, i) != 0) {
			Index[sortcount++] = i;
			if (sgi_get_sysid(cxt, i) == SGI_TYPE_ENTIRE_DISK
			    && entire++ == 1) {
				if (verbose)
					fdisk_info(cxt, _("More than one entire "
						"disk entry present."));
			}
		}
	}
	if (sortcount == 0) {
		if (verbose)
			fdisk_info(cxt, _("No partitions defined"));
		return (lastblock > 0) ? 1 : (lastblock == 0) ? 0 : -1;
	}

	sort(Index, sortcount, sizeof(Index[0]), cxt, compare_start);

	if (sgi_get_sysid(cxt, Index[0]) == SGI_TYPE_ENTIRE_DISK) {
		if (verbose && Index[0] != 10)
			fdisk_info(cxt, _("IRIX likes when Partition 11 "
					  "covers the entire disk."));

		if (verbose && sgi_get_start_sector(cxt, Index[0]) != 0)
			fdisk_info(cxt, _("The entire disk partition should "
				"start at block 0, not at diskblock %d."),
			       sgi_get_start_sector(cxt, Index[0]));

		if (verbose && sgi_get_num_sectors(cxt, Index[0]) != lastblock)
			DBG(LABEL, dbgprint(
				"entire disk partition=%ds, but disk=%ds",
				sgi_get_num_sectors(cxt, Index[0]),
				lastblock));
		lastblock = sgi_get_num_sectors(cxt, Index[0]);
	} else if (verbose) {
		fdisk_info(cxt, _("Partition 11 should cover the entire disk."));
		DBG(LABEL, dbgprint("sysid=%d\tpartition=%d",
			       sgi_get_sysid(cxt, Index[0]), Index[0]+1));
	}
	for (i=1, start=0; i<sortcount; i++) {
		int cylsize = sgi_get_nsect(cxt) * sgi_get_ntrks(cxt);

		if (verbose && cylsize
		    && (sgi_get_start_sector(cxt, Index[i]) % cylsize) != 0)
			DBG(LABEL, dbgprint("partition %d does not start on "
					"cylinder boundary.", Index[i]+1));

		if (verbose && cylsize
		    && sgi_get_num_sectors(cxt, Index[i]) % cylsize != 0)
			DBG(LABEL, dbgprint("partition %d does not end on "
					"cylinder boundary.", Index[i]+1));

		/* We cannot handle several "entire disk" entries. */
		if (sgi_get_sysid(cxt, Index[i]) == SGI_TYPE_ENTIRE_DISK)
			continue;
		if (start > sgi_get_start_sector(cxt, Index[i])) {
			if (verbose)
				fdisk_info(cxt, _("The Partition %d and %d overlap "
					  "by %d sectors."),
				       Index[i-1]+1, Index[i]+1,
				       start - sgi_get_start_sector(cxt, Index[i]));
			if (gap >  0) gap = -gap;
			if (gap == 0) gap = -1;
		}
		if (start < sgi_get_start_sector(cxt, Index[i])) {
			if (verbose)
				fdisk_info(cxt, _("Unused gap of %8u sectors "
					    "- sectors %8u-%u"),
				       sgi_get_start_sector(cxt, Index[i]) - start,
				       start, sgi_get_start_sector(cxt, Index[i])-1);
			gap += sgi_get_start_sector(cxt, Index[i]) - start;
			add_to_freelist(cxt, start,
					sgi_get_start_sector(cxt, Index[i]));
		}
		start = sgi_get_start_sector(cxt, Index[i])
			+ sgi_get_num_sectors(cxt, Index[i]);
		/* Align free space on cylinder boundary */
		if (cylsize && start % cylsize)
			start += cylsize - (start % cylsize);

		DBG(LABEL, dbgprint("%2d:%12d\t%12d\t%12d", Index[i],
				       sgi_get_start_sector(cxt, Index[i]),
				       sgi_get_num_sectors(cxt, Index[i]),
				       sgi_get_sysid(cxt, Index[i])));
	}
	if (start < lastblock) {
		if (verbose)
			fdisk_info(cxt, _("Unused gap of %8u sectors - sectors %8u-%u"),
				lastblock - start, start, lastblock-1);
		gap += lastblock - start;
		add_to_freelist(cxt, start, lastblock);
	}
	/*
	 * Done with arithmetics. Go for details now
	 */
	if (verbose) {
		if (sgi_get_bootpartition(cxt) < 0
		    || !sgi_get_num_sectors(cxt, sgi_get_bootpartition(cxt)))
			fdisk_info(cxt, _("The boot partition does not exist."));

		if (sgi_get_swappartition(cxt) < 0
		    || !sgi_get_num_sectors(cxt, sgi_get_swappartition(cxt)))
			fdisk_info(cxt, _("The swap partition does not exist."));

		else if (sgi_get_sysid(cxt, sgi_get_swappartition(cxt)) != SGI_TYPE_SWAP
		    && sgi_get_sysid(cxt, sgi_get_swappartition(cxt)) != MBR_LINUX_SWAP_PARTITION)
			fdisk_info(cxt, _("The swap partition has no swap type."));

		if (sgi_check_bootfile(cxt, "/unix"))
			fdisk_info(cxt, _("You have chosen an unusual boot "
					  "file name."));
	}

	return (gap > 0) ? 1 : (gap == 0) ? 0 : -1;
}