static void
ptsdrv_free(void *softc)
{
struct pts_softc *psc = softc;
/* Make device number available again. */
if (psc->pts_unit >= 0)
free_unr(pts_pool, psc->pts_unit);
chgptscnt(psc->pts_cred->cr_ruidinfo, -1, 0);
racct_sub_cred(psc->pts_cred, RACCT_NPTS, 1);
crfree(psc->pts_cred);
seldrain(&psc->pts_inpoll);
seldrain(&psc->pts_outpoll);
knlist_destroy(&psc->pts_inpoll.si_note);
knlist_destroy(&psc->pts_outpoll.si_note);
#ifdef PTS_EXTERNAL
/* Destroy master device as well. */
if (psc->pts_cdev != NULL)
destroy_dev_sched(psc->pts_cdev);
#endif /* PTS_EXTERNAL */
free(psc, M_PTS);
}
static int
ptydev_fdopen(struct cdev *dev, int fflags, struct thread *td, struct file *fp)
{
int error;
char name[6]; /* "ttyXX" */
if (!atomic_cmpset_ptr((uintptr_t *)&dev->si_drv1, 0, 1))
return (EBUSY);
/* Generate device name and create PTY. */
strlcpy(name, devtoname(dev), sizeof(name));
name[0] = 't';
error = pts_alloc_external(fflags & (FREAD|FWRITE), td, fp, dev, name);
if (error != 0) {
destroy_dev_sched(dev);
return (error);
}
/* Raise a warning when a legacy PTY has been allocated. */
if (pty_warningcnt > 0) {
pty_warningcnt--;
log(LOG_INFO, "pid %d (%s) is using legacy pty devices%s\n",
td->td_proc->p_pid, td->td_name,
pty_warningcnt ? "" : " - not logging anymore");
}
return (0);
}
/**
* Close a file device previously opened by VBoxDrvFreeBSDOpen
*
* @returns 0 on success.
* @param pDev The device.
* @param fFile The file descriptor flags.
* @param DevType The device type (CHR.
* @param pTd The calling thread.
*/
static int VBoxDrvFreeBSDClose(struct cdev *pDev, int fFile, int DevType, struct thread *pTd)
{
PSUPDRVSESSION pSession = (PSUPDRVSESSION)pDev->si_drv1;
#if __FreeBSD_version < 800062
Log(("VBoxDrvFreeBSDClose: fFile=%#x iUnit=%d pSession=%p\n", fFile, minor2unit(minor(pDev)), pSession));
#else
Log(("VBoxDrvFreeBSDClose: fFile=%#x iUnit=%d pSession=%p\n", fFile, minor(dev2udev(pDev)), pSession));
#endif
/*
* Close the session if it's still hanging on to the device...
*/
if (VALID_PTR(pSession))
{
supdrvCloseSession(&g_VBoxDrvFreeBSDDevExt, pSession);
if (!ASMAtomicCmpXchgPtr(&pDev->si_drv1, NULL, pSession))
OSDBGPRINT(("VBoxDrvFreeBSDClose: si_drv1=%p expected %p!\n", pDev->si_drv1, pSession));
ASMAtomicDecU32(&g_cUsers);
/* Don't use destroy_dev here because it may sleep resulting in a hanging user process. */
destroy_dev_sched(pDev);
}
else
OSDBGPRINT(("VBoxDrvFreeBSDClose: si_drv1=%p!\n", pSession));
return 0;
}
static int
nsmb_dev_close(struct cdev *dev, int flag, int fmt, struct thread *td)
{
struct smb_dev *sdp;
struct smb_vc *vcp;
struct smb_share *ssp;
struct smb_cred *scred;
int s;
scred = malloc(sizeof(struct smb_cred), M_NSMBDEV, M_WAITOK);
SMB_CHECKMINOR(dev);
s = splimp();
if ((sdp->sd_flags & NSMBFL_OPEN) == 0) {
splx(s);
free(scred, M_NSMBDEV);
return EBADF;
}
smb_makescred(scred, td, NULL);
ssp = sdp->sd_share;
if (ssp != NULL)
smb_share_rele(ssp, scred);
vcp = sdp->sd_vc;
if (vcp != NULL)
smb_vc_rele(vcp, scred);
/*
smb_flushq(&sdp->sd_rqlist);
smb_flushq(&sdp->sd_rplist);
*/
dev->si_drv1 = NULL;
free(sdp, M_NSMBDEV);
destroy_dev_sched(dev);
splx(s);
free(scred, M_NSMBDEV);
return 0;
}
/**
* File close handler
*
*/
static int vgdrvFreeBSDClose(struct cdev *pDev, int fFile, int DevType, struct thread *pTd)
{
PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pDev->si_drv1;
Log(("vgdrvFreeBSDClose: fFile=%#x pSession=%p\n", fFile, pSession));
/*
* Close the session if it's still hanging on to the device...
*/
if (VALID_PTR(pSession))
{
VGDrvCommonCloseSession(&g_DevExt, pSession);
if (!ASMAtomicCmpXchgPtr(&pDev->si_drv1, NULL, pSession))
Log(("vgdrvFreeBSDClose: si_drv1=%p expected %p!\n", pDev->si_drv1, pSession));
ASMAtomicDecU32(&cUsers);
/* Don't use destroy_dev here because it may sleep resulting in a hanging user process. */
destroy_dev_sched(pDev);
}
else
Log(("vgdrvFreeBSDClose: si_drv1=%p!\n", pSession));
return 0;
}
static int
apmclose(struct cdev *dev, int flag, int fmt, d_thread_t *td)
{
struct apm_clone_data *clone;
struct acpi_softc *acpi_sc;
clone = dev->si_drv1;
acpi_sc = clone->acpi_sc;
/* We are about to lose a reference so check if suspend should occur */
if (acpi_sc->acpi_next_sstate != 0 &&
clone->notify_status != APM_EV_ACKED)
acpi_AckSleepState(clone, 0);
/* Remove this clone's data from the list and free it. */
ACPI_LOCK(acpi);
STAILQ_REMOVE(&acpi_sc->apm_cdevs, clone, apm_clone_data, entries);
knlist_destroy(&clone->sel_read.si_note);
ACPI_UNLOCK(acpi);
free(clone, M_APMDEV);
destroy_dev_sched(dev);
return (0);
}