int
cddetach(struct device *self, int flags)
{
struct cd_softc *cd = (struct cd_softc *)self;
int bmaj, cmaj, mn;
cd_kill_buffers(cd);
/* Locate the lowest minor number to be detached. */
mn = DISKMINOR(self->dv_unit, 0);
for (bmaj = 0; bmaj < nblkdev; bmaj++)
if (bdevsw[bmaj].d_open == cdopen)
vdevgone(bmaj, mn, mn + MAXPARTITIONS - 1, VBLK);
for (cmaj = 0; cmaj < nchrdev; cmaj++)
if (cdevsw[cmaj].d_open == cdopen)
vdevgone(cmaj, mn, mn + MAXPARTITIONS - 1, VCHR);
/* Get rid of the power hook. */
if (cd->sc_cdpwrhook != NULL)
powerhook_disestablish(cd->sc_cdpwrhook);
/* Detach disk. */
disk_detach(&cd->sc_dk);
return (0);
}
/* ARGSUSED */
static int
cgd_ioctl_clr(struct cgd_softc *cs, struct lwp *l)
{
struct dk_softc *dksc = &cs->sc_dksc;
if (!DK_ATTACHED(dksc))
return ENXIO;
/* Delete all of our wedges. */
dkwedge_delall(&dksc->sc_dkdev);
/* Kill off any queued buffers. */
dk_drain(dksc);
bufq_free(dksc->sc_bufq);
(void)vn_close(cs->sc_tvn, FREAD|FWRITE, l->l_cred);
cs->sc_cfuncs->cf_destroy(cs->sc_cdata.cf_priv);
free(cs->sc_tpath, M_DEVBUF);
free(cs->sc_data, M_DEVBUF);
cs->sc_data_used = 0;
dk_detach(dksc);
disk_detach(&dksc->sc_dkdev);
return 0;
}
static void
maru_shutdown_sc(struct maru_softc *sc)
{
int n;
int s;
DB("maru_shutdown_sc(%p)\n", sc);
s = splbio();
if (sc->sc_flags&MUF_INITED)
{
disk_detach(&sc->sc_dkdev);
sc->sc_flags &= ~MUF_INITED;
if (sc->sc_kapi)
sc->sc_kapi->ka_shutdown(sc->sc_kapi);
if (maru_tokens)
{
for (n=0; n<NUM_TOKENS; n++)
{
struct maru_token *tok = &maru_tokens[n];
if (tok->qt_sc == sc)
{
if (tok->qt_bp)
maru_berror(tok->qt_bp, ENXIO);
maru_release_token(tok);
}
}
if (maru_tokens_active == 0)
{
free(maru_tokens, M_DEVBUF);
maru_tokens = NULL;
}
}
}
splx(s);
}
static int
xbd_detach(struct device *dv, int flags)
{
struct xbd_softc *xs = (struct xbd_softc *)dv;
/*
* Mark disk about to be removed (between now and when the xs
* will be freed).
*/
xs->sc_shutdown = 1;
/* And give it some time to settle if it's busy. */
if (xs->sc_dksc.sc_dkdev.dk_busy > 0)
tsleep(&xs, PWAIT, "xbdetach", hz);
/* Detach the disk. */
disk_detach(&xs->sc_dksc.sc_dkdev);
/* XXX decrement bufq_users and free? */
/* XXX no need to remove sysctl nodes since they only exist
* in domain0 and domain0's devices are never removed.
*/
return 0;
}
/*
* dm_detach:
*
* Autoconfiguration detach function for pseudo-device glue.
* This routine is called by dm_ioctl::dm_dev_remove_ioctl and by autoconf to
* remove devices created in device-mapper.
*/
static int
dm_detach(device_t self, int flags)
{
dm_dev_t *dmv;
/* Detach device from global device list */
if ((dmv = dm_dev_detach(self)) == NULL)
return ENOENT;
/* Destroy active table first. */
dm_table_destroy(&dmv->table_head, DM_TABLE_ACTIVE);
/* Destroy inactive table if exits, too. */
dm_table_destroy(&dmv->table_head, DM_TABLE_INACTIVE);
dm_table_head_destroy(&dmv->table_head);
/* Destroy disk device structure */
disk_detach(dmv->diskp);
disk_destroy(dmv->diskp);
/* Destroy device */
(void)dm_dev_free(dmv);
/* Decrement device counter After removing device */
atomic_dec_32(&dm_dev_counter);
return 0;
}
int
rd_detach(struct device *self, int flags)
{
struct rd_softc *sc = (struct rd_softc *)self;
disk_gone(rdopen, self->dv_unit);
/* Detach disk. */
disk_detach(&sc->sc_dk);
return (0);
}
void
ldenddetach(struct ld_softc *sc)
{
struct buf *bp;
int s, bmaj, cmaj, mn;
if ((sc->sc_flags & LDF_ENABLED) == 0)
return;
/* Wait for commands queued with the hardware to complete. */
if (sc->sc_queuecnt != 0)
if (tsleep(&sc->sc_queuecnt, PRIBIO, "lddtch", 30 * hz))
printf("%s: not drained\n", sc->sc_dv.dv_xname);
/* Locate the major numbers. */
for (bmaj = 0; bmaj <= nblkdev; bmaj++)
if (bdevsw[bmaj].d_open == ldopen)
break;
for (cmaj = 0; cmaj <= nchrdev; cmaj++)
if (cdevsw[cmaj].d_open == ldopen)
break;
/* Kill off any queued buffers. */
s = splbio();
while ((bp = BUFQ_FIRST(&sc->sc_bufq)) != NULL) {
BUFQ_REMOVE(&sc->sc_bufq, bp);
bp->b_error = EIO;
bp->b_flags |= B_ERROR;
bp->b_resid = bp->b_bcount;
biodone(bp);
}
splx(s);
/* Nuke the vnodes for any open instances. */
mn = DISKUNIT(sc->sc_dv.dv_unit);
vdevgone(bmaj, mn, mn + (MAXPARTITIONS - 1), VBLK);
vdevgone(cmaj, mn, mn + (MAXPARTITIONS - 1), VCHR);
/* Detach from the disk list. */
disk_detach(&sc->sc_dk);
#if NRND > 0
/* Unhook the entropy source. */
rnd_detach_source(&sc->sc_rnd_source);
#endif
/* Flush the device's cache. */
if (sc->sc_flush != NULL)
if ((*sc->sc_flush)(sc) != 0)
printf("%s: unable to flush cache\n",
sc->sc_dv.dv_xname);
}
int
wddetach(struct device *self, int flags)
{
struct wd_softc *sc = (struct wd_softc *)self;
timeout_del(&sc->sc_restart_timeout);
bufq_drain(&sc->sc_bufq);
disk_gone(wdopen, self->dv_unit);
/* Detach disk. */
bufq_destroy(&sc->sc_bufq);
disk_detach(&sc->sc_dk);
return (0);
}
static int
vnddoclear(struct vnd_softc *vnd, int pmask, int minor, bool force)
{
int error;
if ((error = vndlock(vnd)) != 0)
return error;
/*
* Don't unconfigure if any other partitions are open
* or if both the character and block flavors of this
* partition are open.
*/
if (DK_BUSY(vnd, pmask) && !force) {
vndunlock(vnd);
return EBUSY;
}
/* Delete all of our wedges */
dkwedge_delall(&vnd->sc_dkdev);
/*
* XXX vndclear() might call vndclose() implicitly;
* release lock to avoid recursion
*
* Set VNF_CLEARING to prevent vndopen() from
* sneaking in after we vndunlock().
*/
vnd->sc_flags |= VNF_CLEARING;
vndunlock(vnd);
vndclear(vnd, minor);
#ifdef DEBUG
if (vnddebug & VDB_INIT)
printf("vndioctl: CLRed\n");
#endif
/* Destroy the xfer and buffer pools. */
pool_destroy(&vnd->sc_vxpool);
/* Detach the disk. */
disk_detach(&vnd->sc_dkdev);
return 0;
}
int
sddetach(struct device *self, int flags)
{
struct sd_softc *sc = (struct sd_softc *)self;
bufq_drain(&sc->sc_bufq);
disk_gone(sdopen, self->dv_unit);
/* Get rid of the shutdown hook. */
if (sc->sc_sdhook != NULL)
shutdownhook_disestablish(sc->sc_sdhook);
/* Detach disk. */
bufq_destroy(&sc->sc_bufq);
disk_detach(&sc->sc_dk);
return (0);
}
static int
fddetach(device_t self, int flags)
{
struct fd_softc *fd = device_private(self);
int bmaj, cmaj, i, mn;
fd_motor_off(fd);
/* locate the major number */
bmaj = bdevsw_lookup_major(&fd_bdevsw);
cmaj = cdevsw_lookup_major(&fd_cdevsw);
/* Nuke the vnodes for any open instances. */
for (i = 0; i < MAXPARTITIONS; i++) {
mn = DISKMINOR(device_unit(self), i);
vdevgone(bmaj, mn, mn, VBLK);
vdevgone(cmaj, mn, mn, VCHR);
}
pmf_device_deregister(self);
#if 0 /* XXX need to undo at detach? */
fd_set_properties(fd);
#endif
#if NRND > 0
rnd_detach_source(&fd->rnd_source);
#endif
disk_detach(&fd->sc_dk);
disk_destroy(&fd->sc_dk);
/* Kill off any queued buffers. */
bufq_drain(fd->sc_q);
bufq_free(fd->sc_q);
callout_destroy(&fd->sc_motoroff_ch);
callout_destroy(&fd->sc_motoron_ch);
return 0;
}
/*
* Free the variable sized parts of the softc.
*/
static void
fss_softc_free(struct fss_softc *sc)
{
int i;
if ((sc->sc_flags & FSS_BS_THREAD) != 0) {
mutex_enter(&sc->sc_slock);
sc->sc_flags &= ~FSS_BS_THREAD;
cv_signal(&sc->sc_work_cv);
mutex_exit(&sc->sc_slock);
kthread_join(sc->sc_bs_lwp);
disk_detach(sc->sc_dkdev);
}
if (sc->sc_copied != NULL)
kmem_free(sc->sc_copied, howmany(sc->sc_clcount, NBBY));
sc->sc_copied = NULL;
if (sc->sc_cache != NULL) {
for (i = 0; i < sc->sc_cache_size; i++)
if (sc->sc_cache[i].fc_data != NULL) {
cv_destroy(&sc->sc_cache[i].fc_state_cv);
kmem_free(sc->sc_cache[i].fc_data,
FSS_CLSIZE(sc));
}
kmem_free(sc->sc_cache,
sc->sc_cache_size*sizeof(struct fss_cache));
}
sc->sc_cache = NULL;
if (sc->sc_indir_valid != NULL)
kmem_free(sc->sc_indir_valid, howmany(sc->sc_indir_size, NBBY));
sc->sc_indir_valid = NULL;
if (sc->sc_indir_data != NULL)
kmem_free(sc->sc_indir_data, FSS_CLSIZE(sc));
sc->sc_indir_data = NULL;
}
int
ccdioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
{
int unit = ccdunit(dev);
int i, j, lookedup = 0, error = 0;
int part, pmask, s;
struct ccd_softc *cs;
struct ccd_ioctl *ccio = (struct ccd_ioctl *)data;
struct ccddevice ccd;
char **cpp;
struct vnode **vpp;
vaddr_t min, max;
if (unit >= numccd)
return (ENXIO);
cs = &ccd_softc[unit];
if (cmd != CCDIOCSET && !(cs->sc_flags & CCDF_INITED))
return (ENXIO);
/* access control */
switch (cmd) {
case CCDIOCSET:
case CCDIOCCLR:
case DIOCWDINFO:
case DIOCSDINFO:
case DIOCWLABEL:
if ((flag & FWRITE) == 0)
return (EBADF);
}
bzero(&ccd, sizeof(ccd));
switch (cmd) {
case CCDIOCSET:
if (cs->sc_flags & CCDF_INITED)
return (EBUSY);
if (ccio->ccio_ndisks == 0 || ccio->ccio_ndisks > INT_MAX ||
ccio->ccio_ileave < 0)
return (EINVAL);
if ((error = ccdlock(cs)) != 0)
return (error);
/* Fill in some important bits. */
ccd.ccd_unit = unit;
ccd.ccd_interleave = ccio->ccio_ileave;
ccd.ccd_flags = ccio->ccio_flags & CCDF_USERMASK;
/* XXX the new code is unstable still */
ccd.ccd_flags |= CCDF_OLD;
/*
* Interleaving which is not a multiple of the click size
* must use the old I/O code (by design)
*/
if (ccio->ccio_ileave % (PAGE_SIZE / DEV_BSIZE) != 0)
ccd.ccd_flags |= CCDF_OLD;
/*
* Allocate space for and copy in the array of
* componet pathnames and device numbers.
*/
cpp = malloc(ccio->ccio_ndisks * sizeof(char *),
M_DEVBUF, M_WAITOK);
vpp = malloc(ccio->ccio_ndisks * sizeof(struct vnode *),
M_DEVBUF, M_WAITOK);
error = copyin((caddr_t)ccio->ccio_disks, (caddr_t)cpp,
ccio->ccio_ndisks * sizeof(char **));
if (error) {
free(vpp, M_DEVBUF);
free(cpp, M_DEVBUF);
ccdunlock(cs);
return (error);
}
for (i = 0; i < ccio->ccio_ndisks; ++i) {
CCD_DPRINTF(CCDB_INIT,
("ccdioctl: component %d: %p, lookedup = %d\n",
i, cpp[i], lookedup));
if ((error = ccdlookup(cpp[i], p, &vpp[i])) != 0) {
for (j = 0; j < lookedup; ++j)
(void)vn_close(vpp[j], FREAD|FWRITE,
p->p_ucred, p);
free(vpp, M_DEVBUF);
free(cpp, M_DEVBUF);
ccdunlock(cs);
return (error);
}
++lookedup;
}
ccd.ccd_cpp = cpp;
ccd.ccd_vpp = vpp;
ccd.ccd_ndev = ccio->ccio_ndisks;
/*
* Initialize the ccd. Fills in the softc for us.
*/
if ((error = ccdinit(&ccd, cpp, p)) != 0) {
for (j = 0; j < lookedup; ++j)
(void)vn_close(vpp[j], FREAD|FWRITE,
p->p_ucred, p);
bzero(&ccd_softc[unit], sizeof(struct ccd_softc));
free(vpp, M_DEVBUF);
free(cpp, M_DEVBUF);
ccdunlock(cs);
return (error);
}
/*
* The ccd has been successfully initialized, so
* we can place it into the array. Don't try to
* read the disklabel until the disk has been attached,
* because space for the disklabel is allocated
* in disk_attach();
*/
bcopy(&ccd, &ccddevs[unit], sizeof(ccd));
ccio->ccio_unit = unit;
ccio->ccio_size = cs->sc_size;
/*
* If we use the optimized protocol we need some kvm space
* for the component buffers. Allocate it here.
*
* XXX I'd like to have a more dynamic way of acquiring kvm
* XXX space, but that is problematic as we are not allowed
* XXX to lock the kernel_map in interrupt context. It is
* XXX doable via a freelist implementation though.
*/
if (!ccdmap && !(ccd.ccd_flags & CCDF_OLD)) {
min = vm_map_min(kernel_map);
ccdmap = uvm_km_suballoc(kernel_map, &min, &max,
CCD_CLUSTERS * MAXBSIZE, VM_MAP_INTRSAFE,
FALSE, NULL);
}
/* Attach the disk. */
cs->sc_dkdev.dk_name = cs->sc_xname;
disk_attach(&cs->sc_dkdev);
/* Try and read the disklabel. */
ccdgetdisklabel(dev, cs, cs->sc_dkdev.dk_label,
cs->sc_dkdev.dk_cpulabel, 0);
ccdunlock(cs);
break;
case CCDIOCCLR:
if ((error = ccdlock(cs)) != 0)
return (error);
/*
* Don't unconfigure if any other partitions are open
* or if both the character and block flavors of this
* partition are open.
*/
part = DISKPART(dev);
pmask = (1 << part);
if ((cs->sc_dkdev.dk_openmask & ~pmask) ||
((cs->sc_dkdev.dk_bopenmask & pmask) &&
(cs->sc_dkdev.dk_copenmask & pmask))) {
ccdunlock(cs);
return (EBUSY);
}
/*
* Free ccd_softc information and clear entry.
*/
/* Close the components and free their pathnames. */
for (i = 0; i < cs->sc_nccdisks; ++i) {
/*
* XXX: this close could potentially fail and
* cause Bad Things. Maybe we need to force
* the close to happen?
*/
#ifdef DIAGNOSTIC
CCD_DCALL(CCDB_VNODE, vprint("CCDIOCCLR: vnode info",
cs->sc_cinfo[i].ci_vp));
#endif
(void)vn_close(cs->sc_cinfo[i].ci_vp, FREAD|FWRITE,
p->p_ucred, p);
free(cs->sc_cinfo[i].ci_path, M_DEVBUF);
}
/* Free interleave index. */
for (i = 0; cs->sc_itable[i].ii_ndisk; ++i)
free(cs->sc_itable[i].ii_index, M_DEVBUF);
/* Free component info and interleave table. */
free(cs->sc_cinfo, M_DEVBUF);
free(cs->sc_itable, M_DEVBUF);
cs->sc_flags &= ~CCDF_INITED;
/*
* Free ccddevice information and clear entry.
*/
free(ccddevs[unit].ccd_cpp, M_DEVBUF);
free(ccddevs[unit].ccd_vpp, M_DEVBUF);
bcopy(&ccd, &ccddevs[unit], sizeof(ccd));
/* Detatch the disk. */
disk_detach(&cs->sc_dkdev);
/* This must be atomic. */
s = splhigh();
ccdunlock(cs);
bzero(cs, sizeof(struct ccd_softc));
splx(s);
break;
case DIOCGPDINFO: {
struct cpu_disklabel osdep;
if ((error = ccdlock(cs)) != 0)
return (error);
ccdgetdisklabel(dev, cs, (struct disklabel *)data,
&osdep, 1);
ccdunlock(cs);
break;
}
case DIOCGDINFO:
*(struct disklabel *)data = *(cs->sc_dkdev.dk_label);
break;
case DIOCGPART:
((struct partinfo *)data)->disklab = cs->sc_dkdev.dk_label;
((struct partinfo *)data)->part =
&cs->sc_dkdev.dk_label->d_partitions[DISKPART(dev)];
break;
case DIOCWDINFO:
case DIOCSDINFO:
if ((error = ccdlock(cs)) != 0)
return (error);
cs->sc_flags |= CCDF_LABELLING;
error = setdisklabel(cs->sc_dkdev.dk_label,
(struct disklabel *)data, 0, cs->sc_dkdev.dk_cpulabel);
if (error == 0) {
if (cmd == DIOCWDINFO)
error = writedisklabel(CCDLABELDEV(dev),
ccdstrategy, cs->sc_dkdev.dk_label,
cs->sc_dkdev.dk_cpulabel);
}
cs->sc_flags &= ~CCDF_LABELLING;
ccdunlock(cs);
if (error)
return (error);
break;
case DIOCWLABEL:
if (*(int *)data != 0)
cs->sc_flags |= CCDF_WLABEL;
else
cs->sc_flags &= ~CCDF_WLABEL;
break;
default:
return (ENOTTY);
}
return (0);
}
/* ARGSUSED */
int
vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
{
int unit = DISKUNIT(dev);
struct disklabel *lp;
struct vnd_softc *sc;
struct vnd_ioctl *vio;
struct vnd_user *vnu;
struct vattr vattr;
struct nameidata nd;
int error, part, pmask;
DNPRINTF(VDB_FOLLOW, "vndioctl(%x, %lx, %p, %x, %p): unit %d\n",
dev, cmd, addr, flag, p, unit);
error = suser(p, 0);
if (error)
return (error);
if (unit >= numvnd)
return (ENXIO);
sc = &vnd_softc[unit];
vio = (struct vnd_ioctl *)addr;
switch (cmd) {
case VNDIOCSET:
if (sc->sc_flags & VNF_INITED)
return (EBUSY);
/* Geometry eventually has to fit into label fields */
if (vio->vnd_secsize > UINT_MAX ||
vio->vnd_ntracks > UINT_MAX ||
vio->vnd_nsectors > UINT_MAX)
return (EINVAL);
if ((error = disk_lock(&sc->sc_dk)) != 0)
return (error);
if ((error = copyinstr(vio->vnd_file, sc->sc_file,
sizeof(sc->sc_file), NULL))) {
disk_unlock(&sc->sc_dk);
return (error);
}
/* Set geometry for device. */
sc->sc_secsize = vio->vnd_secsize;
sc->sc_ntracks = vio->vnd_ntracks;
sc->sc_nsectors = vio->vnd_nsectors;
/*
* Open for read and write first. This lets vn_open() weed out
* directories, sockets, etc. so we don't have to worry about
* them.
*/
NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, vio->vnd_file, p);
sc->sc_flags &= ~VNF_READONLY;
error = vn_open(&nd, FREAD|FWRITE, 0);
if (error == EROFS) {
sc->sc_flags |= VNF_READONLY;
error = vn_open(&nd, FREAD, 0);
}
if (error) {
disk_unlock(&sc->sc_dk);
return (error);
}
if (nd.ni_vp->v_type == VBLK)
sc->sc_size = vndbdevsize(nd.ni_vp, p);
else {
error = VOP_GETATTR(nd.ni_vp, &vattr, p->p_ucred, p);
if (error) {
VOP_UNLOCK(nd.ni_vp, 0, p);
vn_close(nd.ni_vp, VNDRW(sc), p->p_ucred, p);
disk_unlock(&sc->sc_dk);
return (error);
}
sc->sc_size = vattr.va_size / sc->sc_secsize;
}
VOP_UNLOCK(nd.ni_vp, 0, p);
sc->sc_vp = nd.ni_vp;
if ((error = vndsetcred(sc, p->p_ucred)) != 0) {
(void) vn_close(nd.ni_vp, VNDRW(sc), p->p_ucred, p);
disk_unlock(&sc->sc_dk);
return (error);
}
if (vio->vnd_keylen > 0) {
char key[BLF_MAXUTILIZED];
if (vio->vnd_keylen > sizeof(key))
vio->vnd_keylen = sizeof(key);
if ((error = copyin(vio->vnd_key, key,
vio->vnd_keylen)) != 0) {
(void) vn_close(nd.ni_vp, VNDRW(sc),
p->p_ucred, p);
disk_unlock(&sc->sc_dk);
return (error);
}
sc->sc_keyctx = malloc(sizeof(*sc->sc_keyctx), M_DEVBUF,
M_WAITOK);
blf_key(sc->sc_keyctx, key, vio->vnd_keylen);
explicit_bzero(key, vio->vnd_keylen);
} else
sc->sc_keyctx = NULL;
vio->vnd_size = sc->sc_size * sc->sc_secsize;
sc->sc_flags |= VNF_INITED;
DNPRINTF(VDB_INIT, "vndioctl: SET vp %p size %llx\n",
sc->sc_vp, (unsigned long long)sc->sc_size);
/* Attach the disk. */
sc->sc_dk.dk_name = sc->sc_dev.dv_xname;
disk_attach(&sc->sc_dev, &sc->sc_dk);
disk_unlock(&sc->sc_dk);
break;
case VNDIOCCLR:
if ((sc->sc_flags & VNF_INITED) == 0)
return (ENXIO);
if ((error = disk_lock(&sc->sc_dk)) != 0)
return (error);
/*
* Don't unconfigure if any other partitions are open
* or if both the character and block flavors of this
* partition are open.
*/
part = DISKPART(dev);
pmask = (1 << part);
if ((sc->sc_dk.dk_openmask & ~pmask) ||
((sc->sc_dk.dk_bopenmask & pmask) &&
(sc->sc_dk.dk_copenmask & pmask))) {
disk_unlock(&sc->sc_dk);
return (EBUSY);
}
vndclear(sc);
DNPRINTF(VDB_INIT, "vndioctl: CLRed\n");
/* Free crypto key */
if (sc->sc_keyctx) {
explicit_bzero(sc->sc_keyctx, sizeof(*sc->sc_keyctx));
free(sc->sc_keyctx, M_DEVBUF, sizeof(*sc->sc_keyctx));
}
/* Detach the disk. */
disk_detach(&sc->sc_dk);
disk_unlock(&sc->sc_dk);
break;
case VNDIOCGET:
vnu = (struct vnd_user *)addr;
if (vnu->vnu_unit == -1)
vnu->vnu_unit = unit;
if (vnu->vnu_unit >= numvnd)
return (ENXIO);
if (vnu->vnu_unit < 0)
return (EINVAL);
sc = &vnd_softc[vnu->vnu_unit];
if (sc->sc_flags & VNF_INITED) {
error = VOP_GETATTR(sc->sc_vp, &vattr, p->p_ucred, p);
if (error)
return (error);
strlcpy(vnu->vnu_file, sc->sc_file,
sizeof(vnu->vnu_file));
vnu->vnu_dev = vattr.va_fsid;
vnu->vnu_ino = vattr.va_fileid;
} else {
vnu->vnu_dev = 0;
vnu->vnu_ino = 0;
}
break;
case DIOCRLDINFO:
if ((sc->sc_flags & VNF_HAVELABEL) == 0)
return (ENOTTY);
lp = malloc(sizeof(*lp), M_TEMP, M_WAITOK);
vndgetdisklabel(dev, sc, lp, 0);
*(sc->sc_dk.dk_label) = *lp;
free(lp, M_TEMP, sizeof(*lp));
return (0);
case DIOCGPDINFO:
if ((sc->sc_flags & VNF_HAVELABEL) == 0)
return (ENOTTY);
vndgetdisklabel(dev, sc, (struct disklabel *)addr, 1);
return (0);
case DIOCGDINFO:
if ((sc->sc_flags & VNF_HAVELABEL) == 0)
return (ENOTTY);
*(struct disklabel *)addr = *(sc->sc_dk.dk_label);
return (0);
case DIOCGPART:
if ((sc->sc_flags & VNF_HAVELABEL) == 0)
return (ENOTTY);
((struct partinfo *)addr)->disklab = sc->sc_dk.dk_label;
((struct partinfo *)addr)->part =
&sc->sc_dk.dk_label->d_partitions[DISKPART(dev)];
return (0);
case DIOCWDINFO:
case DIOCSDINFO:
if ((sc->sc_flags & VNF_HAVELABEL) == 0)
return (ENOTTY);
if ((flag & FWRITE) == 0)
return (EBADF);
if ((error = disk_lock(&sc->sc_dk)) != 0)
return (error);
error = setdisklabel(sc->sc_dk.dk_label,
(struct disklabel *)addr, /* sc->sc_dk.dk_openmask */ 0);
if (error == 0) {
if (cmd == DIOCWDINFO)
error = writedisklabel(DISKLABELDEV(dev),
vndstrategy, sc->sc_dk.dk_label);
}
disk_unlock(&sc->sc_dk);
return (error);
default:
return (ENOTTY);
}
return (0);
}