Exemplo n.º 1
0
/* ARGSUSED */
void
dk_getdisklabel(struct dk_softc *dksc, dev_t dev)
{
	const struct dkdriver *dkd = dksc->sc_dkdev.dk_driver;
	struct	 disklabel *lp = dksc->sc_dkdev.dk_label;
	struct	 cpu_disklabel *clp = dksc->sc_dkdev.dk_cpulabel;
	struct   disk_geom *dg = &dksc->sc_dkdev.dk_geom;
	struct	 partition *pp;
	int	 i;
	const char	*errstring;

	memset(clp, 0x0, sizeof(*clp));
	dk_getdefaultlabel(dksc, lp);
	errstring = readdisklabel(DKLABELDEV(dev), dkd->d_strategy,
	    dksc->sc_dkdev.dk_label, dksc->sc_dkdev.dk_cpulabel);
	if (errstring) {
		dk_makedisklabel(dksc);
		if (dksc->sc_flags & DKF_WARNLABEL)
			printf("%s: %s\n", dksc->sc_xname, errstring);
		return;
	}

	if ((dksc->sc_flags & DKF_LABELSANITY) == 0)
		return;

	/* Sanity check */
	if (lp->d_secperunit < UINT32_MAX ?
		lp->d_secperunit != dg->dg_secperunit :
		lp->d_secperunit > dg->dg_secperunit)
		printf("WARNING: %s: total sector size in disklabel (%ju) "
		    "!= the size of %s (%ju)\n", dksc->sc_xname,
		    (uintmax_t)lp->d_secperunit, dksc->sc_xname,
		    (uintmax_t)dg->dg_secperunit);

	for (i=0; i < lp->d_npartitions; i++) {
		pp = &lp->d_partitions[i];
		if (pp->p_offset + pp->p_size > dg->dg_secperunit)
			printf("WARNING: %s: end of partition `%c' exceeds "
			    "the size of %s (%ju)\n", dksc->sc_xname,
			    'a' + i, dksc->sc_xname,
			    (uintmax_t)dg->dg_secperunit);
	}
}
Exemplo n.º 2
0
/* ARGSUSED */
void
dk_getdisklabel(struct dk_intf *di, struct dk_softc *dksc, dev_t dev)
{
	struct	 disklabel *lp = dksc->sc_dkdev.dk_label;
	struct	 cpu_disklabel *clp = dksc->sc_dkdev.dk_cpulabel;
	struct	 partition *pp;
	int	 i;
	const char	*errstring;

	memset(clp, 0x0, sizeof(*clp));
	dk_getdefaultlabel(di, dksc, lp);
	errstring = readdisklabel(DKLABELDEV(dev), di->di_strategy,
	    dksc->sc_dkdev.dk_label, dksc->sc_dkdev.dk_cpulabel);
	if (errstring) {
		dk_makedisklabel(di, dksc);
		if (dksc->sc_flags & DKF_WARNLABEL)
			printf("%s: %s\n", dksc->sc_xname, errstring);
		return;
	}

	if ((dksc->sc_flags & DKF_LABELSANITY) == 0)
		return;

	/* Sanity check */
	if (lp->d_secperunit != dksc->sc_size)
		printf("WARNING: %s: total sector size in disklabel (%d) "
		    "!= the size of %s (%lu)\n", dksc->sc_xname,
		    lp->d_secperunit, di->di_dkname, (u_long)dksc->sc_size);

	for (i=0; i < lp->d_npartitions; i++) {
		pp = &lp->d_partitions[i];
		if (pp->p_offset + pp->p_size > dksc->sc_size)
			printf("WARNING: %s: end of partition `%c' exceeds "
			    "the size of %s (%lu)\n", dksc->sc_xname,
			    'a' + i, di->di_dkname, (u_long)dksc->sc_size);
	}
}
Exemplo n.º 3
0
int
dk_ioctl(struct dk_softc *dksc, dev_t dev,
	    u_long cmd, void *data, int flag, struct lwp *l)
{
	const struct dkdriver *dkd = dksc->sc_dkdev.dk_driver;
	struct	disklabel *lp;
	struct	disk *dk = &dksc->sc_dkdev;
#ifdef __HAVE_OLD_DISKLABEL
	struct	disklabel newlabel;
#endif
	int	error;

	DPRINTF_FOLLOW(("%s(%s, %p, 0x%"PRIx64", 0x%lx)\n", __func__,
	    dksc->sc_xname, dksc, dev, cmd));

	/* ensure that the pseudo disk is open for writes for these commands */
	switch (cmd) {
	case DIOCSDINFO:
	case DIOCWDINFO:
#ifdef __HAVE_OLD_DISKLABEL
	case ODIOCSDINFO:
	case ODIOCWDINFO:
#endif
	case DIOCKLABEL:
	case DIOCWLABEL:
	case DIOCAWEDGE:
	case DIOCDWEDGE:
	case DIOCSSTRATEGY:
		if ((flag & FWRITE) == 0)
			return EBADF;
	}

	/* ensure that the pseudo-disk is initialized for these */
	switch (cmd) {
	case DIOCGDINFO:
	case DIOCSDINFO:
	case DIOCWDINFO:
	case DIOCGPARTINFO:
	case DIOCKLABEL:
	case DIOCWLABEL:
	case DIOCGDEFLABEL:
	case DIOCAWEDGE:
	case DIOCDWEDGE:
	case DIOCLWEDGES:
	case DIOCMWEDGES:
	case DIOCCACHESYNC:
#ifdef __HAVE_OLD_DISKLABEL
	case ODIOCGDINFO:
	case ODIOCSDINFO:
	case ODIOCWDINFO:
	case ODIOCGDEFLABEL:
#endif
		if ((dksc->sc_flags & DKF_INITED) == 0)
			return ENXIO;
	}

	error = disk_ioctl(dk, dev, cmd, data, flag, l);
	if (error != EPASSTHROUGH)
		return error;
	else
		error = 0;

	switch (cmd) {
	case DIOCWDINFO:
	case DIOCSDINFO:
#ifdef __HAVE_OLD_DISKLABEL
	case ODIOCWDINFO:
	case ODIOCSDINFO:
#endif
#ifdef __HAVE_OLD_DISKLABEL
		if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) {
			memset(&newlabel, 0, sizeof newlabel);
			memcpy(&newlabel, data, sizeof (struct olddisklabel));
			lp = &newlabel;
		} else
#endif
		lp = (struct disklabel *)data;

		mutex_enter(&dk->dk_openlock);
		dksc->sc_flags |= DKF_LABELLING;

		error = setdisklabel(dksc->sc_dkdev.dk_label,
		    lp, 0, dksc->sc_dkdev.dk_cpulabel);
		if (error == 0) {
			if (cmd == DIOCWDINFO
#ifdef __HAVE_OLD_DISKLABEL
			    || cmd == ODIOCWDINFO
#endif
			   )
				error = writedisklabel(DKLABELDEV(dev),
				    dkd->d_strategy, dksc->sc_dkdev.dk_label,
				    dksc->sc_dkdev.dk_cpulabel);
		}

		dksc->sc_flags &= ~DKF_LABELLING;
		mutex_exit(&dk->dk_openlock);
		break;

	case DIOCKLABEL:
		if (*(int *)data != 0)
			dksc->sc_flags |= DKF_KLABEL;
		else
			dksc->sc_flags &= ~DKF_KLABEL;
		break;

	case DIOCWLABEL:
		if (*(int *)data != 0)
			dksc->sc_flags |= DKF_WLABEL;
		else
			dksc->sc_flags &= ~DKF_WLABEL;
		break;

	case DIOCGDEFLABEL:
		dk_getdefaultlabel(dksc, (struct disklabel *)data);
		break;

#ifdef __HAVE_OLD_DISKLABEL
	case ODIOCGDEFLABEL:
		dk_getdefaultlabel(dksc, &newlabel);
		if (newlabel.d_npartitions > OLDMAXPARTITIONS)
			return ENOTTY;
		memcpy(data, &newlabel, sizeof (struct olddisklabel));
		break;
#endif

	case DIOCGSTRATEGY:
	    {
		struct disk_strategy *dks = (void *)data;

		mutex_enter(&dksc->sc_iolock);
		strlcpy(dks->dks_name, bufq_getstrategyname(dksc->sc_bufq),
		    sizeof(dks->dks_name));
		mutex_exit(&dksc->sc_iolock);
		dks->dks_paramlen = 0;

		return 0;
	    }

	case DIOCSSTRATEGY:
	    {
		struct disk_strategy *dks = (void *)data;
		struct bufq_state *new;
		struct bufq_state *old;

		if (dks->dks_param != NULL) {
			return EINVAL;
		}
		dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */
		error = bufq_alloc(&new, dks->dks_name,
		    BUFQ_EXACT|BUFQ_SORT_RAWBLOCK);
		if (error) {
			return error;
		}
		mutex_enter(&dksc->sc_iolock);
		old = dksc->sc_bufq;
		bufq_move(new, old);
		dksc->sc_bufq = new;
		mutex_exit(&dksc->sc_iolock);
		bufq_free(old);

		return 0;
	    }

	default:
		error = ENOTTY;
	}

	return error;
}
Exemplo n.º 4
0
int
dk_ioctl(struct dk_intf *di, struct dk_softc *dksc, dev_t dev,
	    u_long cmd, void *data, int flag, struct lwp *l)
{
	struct	disklabel *lp;
	struct	disk *dk;
#ifdef __HAVE_OLD_DISKLABEL
	struct	disklabel newlabel;
#endif
	int	error = 0;

	DPRINTF_FOLLOW(("dk_ioctl(%s, %p, 0x%"PRIx64", 0x%lx)\n",
	    di->di_dkname, dksc, dev, cmd));

	/* ensure that the pseudo disk is open for writes for these commands */
	switch (cmd) {
	case DIOCSDINFO:
	case DIOCWDINFO:
#ifdef __HAVE_OLD_DISKLABEL
	case ODIOCSDINFO:
	case ODIOCWDINFO:
#endif
	case DIOCWLABEL:
	case DIOCAWEDGE:
	case DIOCDWEDGE:
		if ((flag & FWRITE) == 0)
			return EBADF;
	}

	/* ensure that the pseudo-disk is initialized for these */
	switch (cmd) {
#ifdef DIOCGSECTORSIZE
	case DIOCGSECTORSIZE:
	case DIOCGMEDIASIZE:
#endif
	case DIOCGDINFO:
	case DIOCSDINFO:
	case DIOCWDINFO:
	case DIOCGPART:
	case DIOCWLABEL:
	case DIOCGDEFLABEL:
	case DIOCAWEDGE:
	case DIOCDWEDGE:
	case DIOCLWEDGES:
	case DIOCCACHESYNC:
#ifdef __HAVE_OLD_DISKLABEL
	case ODIOCGDINFO:
	case ODIOCSDINFO:
	case ODIOCWDINFO:
	case ODIOCGDEFLABEL:
#endif
		if ((dksc->sc_flags & DKF_INITED) == 0)
			return ENXIO;
	}

	switch (cmd) {
#ifdef DIOCGSECTORSIZE
	case DIOCGSECTORSIZE:
		*(u_int *)data = dksc->sc_dkdev.dk_geom.dg_secsize;
		return 0;
	case DIOCGMEDIASIZE:
		*(off_t *)data =
		    (off_t)dksc->sc_dkdev.dk_geom.dg_secsize *
		    dksc->sc_dkdev.dk_geom.dg_nsectors;
		return 0;
#endif

	case DIOCGDINFO:
		*(struct disklabel *)data = *(dksc->sc_dkdev.dk_label);
		break;

#ifdef __HAVE_OLD_DISKLABEL
	case ODIOCGDINFO:
		newlabel = *(dksc->sc_dkdev.dk_label);
		if (newlabel.d_npartitions > OLDMAXPARTITIONS)
			return ENOTTY;
		memcpy(data, &newlabel, sizeof (struct olddisklabel));
		break;
#endif

	case DIOCGPART:
		((struct partinfo *)data)->disklab = dksc->sc_dkdev.dk_label;
		((struct partinfo *)data)->part =
		    &dksc->sc_dkdev.dk_label->d_partitions[DISKPART(dev)];
		break;

	case DIOCWDINFO:
	case DIOCSDINFO:
#ifdef __HAVE_OLD_DISKLABEL
	case ODIOCWDINFO:
	case ODIOCSDINFO:
#endif
#ifdef __HAVE_OLD_DISKLABEL
		if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) {
			memset(&newlabel, 0, sizeof newlabel);
			memcpy(&newlabel, data, sizeof (struct olddisklabel));
			lp = &newlabel;
		} else
#endif
		lp = (struct disklabel *)data;

		dk = &dksc->sc_dkdev;
		mutex_enter(&dk->dk_openlock);
		dksc->sc_flags |= DKF_LABELLING;

		error = setdisklabel(dksc->sc_dkdev.dk_label,
		    lp, 0, dksc->sc_dkdev.dk_cpulabel);
		if (error == 0) {
			if (cmd == DIOCWDINFO
#ifdef __HAVE_OLD_DISKLABEL
			    || cmd == ODIOCWDINFO
#endif
			   )
				error = writedisklabel(DKLABELDEV(dev),
				    di->di_strategy, dksc->sc_dkdev.dk_label,
				    dksc->sc_dkdev.dk_cpulabel);
		}

		dksc->sc_flags &= ~DKF_LABELLING;
		mutex_exit(&dk->dk_openlock);
		break;

	case DIOCWLABEL:
		if (*(int *)data != 0)
			dksc->sc_flags |= DKF_WLABEL;
		else
			dksc->sc_flags &= ~DKF_WLABEL;
		break;

	case DIOCGDEFLABEL:
		dk_getdefaultlabel(di, dksc, (struct disklabel *)data);
		break;

#ifdef __HAVE_OLD_DISKLABEL
	case ODIOCGDEFLABEL:
		dk_getdefaultlabel(di, dksc, &newlabel);
		if (newlabel.d_npartitions > OLDMAXPARTITIONS)
			return ENOTTY;
		memcpy(data, &newlabel, sizeof (struct olddisklabel));
		break;
#endif

	case DIOCAWEDGE:
	    {
	    	struct dkwedge_info *dkw = (void *)data;

		if ((flag & FWRITE) == 0)
			return (EBADF);

		/* If the ioctl happens here, the parent is us. */
		strcpy(dkw->dkw_parent, dksc->sc_dkdev.dk_name);
		return (dkwedge_add(dkw));
	    }

	case DIOCDWEDGE:
	    {
	    	struct dkwedge_info *dkw = (void *)data;

		if ((flag & FWRITE) == 0)
			return (EBADF);

		/* If the ioctl happens here, the parent is us. */
		strcpy(dkw->dkw_parent, dksc->sc_dkdev.dk_name);
		return (dkwedge_del(dkw));
	    }

	case DIOCLWEDGES:
	    {
	    	struct dkwedge_list *dkwl = (void *)data;

		return (dkwedge_list(&dksc->sc_dkdev, dkwl, l));
	    }

	case DIOCGSTRATEGY:
	    {
		struct disk_strategy *dks = (void *)data;
		int s;

		s = splbio();
		strlcpy(dks->dks_name, bufq_getstrategyname(dksc->sc_bufq),
		    sizeof(dks->dks_name));
		splx(s);
		dks->dks_paramlen = 0;

		return 0;
	    }
	
	case DIOCSSTRATEGY:
	    {
		struct disk_strategy *dks = (void *)data;
		struct bufq_state *new;
		struct bufq_state *old;
		int s;

		if ((flag & FWRITE) == 0) {
			return EBADF;
		}
		if (dks->dks_param != NULL) {
			return EINVAL;
		}
		dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */
		error = bufq_alloc(&new, dks->dks_name,
		    BUFQ_EXACT|BUFQ_SORT_RAWBLOCK);
		if (error) {
			return error;
		}
		s = splbio();
		old = dksc->sc_bufq;
		bufq_move(new, old);
		dksc->sc_bufq = new;
		splx(s);
		bufq_free(old);

		return 0;
	    }

	default:
		error = ENOTTY;
	}

	return error;
}