static int vgdrvFreeBSDOpen(struct cdev *pDev, int fOpen, struct thread *pTd)
#endif
{
int rc;
PVBOXGUESTSESSION pSession;
LogFlow(("vgdrvFreeBSDOpen:\n"));
/*
* Try grab it (we don't grab the giant, remember).
*/
if (!ASMAtomicCmpXchgPtr(&pDev->si_drv1, (void *)0x42, NULL))
return EBUSY;
/*
* Create a new session.
*/
rc = VGDrvCommonCreateUserSession(&g_DevExt, &pSession);
if (RT_SUCCESS(rc))
{
if (ASMAtomicCmpXchgPtr(&pDev->si_drv1, pSession, (void *)0x42))
{
Log(("vgdrvFreeBSDOpen: success - g_DevExt=%p pSession=%p rc=%d pid=%d\n", &g_DevExt, pSession, rc, (int)RTProcSelf()));
ASMAtomicIncU32(&cUsers);
return 0;
}
VGDrvCommonCloseSession(&g_DevExt, pSession);
}
LogRel(("vgdrvFreeBSDOpen: failed. rc=%d\n", rc));
return RTErrConvertToErrno(rc);
}
/**
* User context entry points
*
* @remarks fFlags are the flags passed to open() or to ldi_open_by_name. In
* the latter case the FKLYR flag is added to indicate that the caller
* is a kernel component rather than user land.
*/
static int vgdrvSolarisOpen(dev_t *pDev, int fFlags, int fType, cred_t *pCred)
{
int rc;
PVBOXGUESTSESSION pSession = NULL;
LogFlow(("vgdrvSolarisOpen:\n"));
/*
* Verify we are being opened as a character device.
*/
if (fType != OTYP_CHR)
return EINVAL;
vboxguest_state_t *pState = NULL;
unsigned iOpenInstance;
for (iOpenInstance = 0; iOpenInstance < 4096; iOpenInstance++)
{
if ( !ddi_get_soft_state(g_pvgdrvSolarisState, iOpenInstance) /* faster */
&& ddi_soft_state_zalloc(g_pvgdrvSolarisState, iOpenInstance) == DDI_SUCCESS)
{
pState = ddi_get_soft_state(g_pvgdrvSolarisState, iOpenInstance);
break;
}
}
if (!pState)
{
Log(("vgdrvSolarisOpen: too many open instances."));
return ENXIO;
}
/*
* Create a new session.
*/
if (!(fFlags & FKLYR))
rc = VGDrvCommonCreateUserSession(&g_DevExt, &pSession);
else
rc = VGDrvCommonCreateKernelSession(&g_DevExt, &pSession);
if (RT_SUCCESS(rc))
{
if (!(fFlags & FKLYR))
pState->pvProcRef = proc_ref();
else
pState->pvProcRef = NULL;
pState->pSession = pSession;
*pDev = makedevice(getmajor(*pDev), iOpenInstance);
Log(("vgdrvSolarisOpen: pSession=%p pState=%p pid=%d\n", pSession, pState, (int)RTProcSelf()));
return 0;
}
/* Failed, clean up. */
ddi_soft_state_free(g_pvgdrvSolarisState, iOpenInstance);
LogRel((DEVICE_NAME "::Open: VGDrvCommonCreateUserSession failed. rc=%d\n", rc));
return EFAULT;
}
/**
* Driver open hook.
*
* @param name The name of the device as returned by publish_devices.
* @param flags Open flags.
* @param cookie Where to store the session pointer.
*
* @return Haiku status code.
*/
static status_t vgdrvHaikuOpen(const char *name, uint32 flags, void **cookie)
{
int rc;
PVBOXGUESTSESSION pSession;
LogFlow((DRIVER_NAME ":vgdrvHaikuOpen\n"));
/*
* Create a new session.
*/
rc = VGDrvCommonCreateUserSession(&g_DevExt, &pSession);
if (RT_SUCCESS(rc))
{
Log((DRIVER_NAME ":vgdrvHaikuOpen success: g_DevExt=%p pSession=%p rc=%d pid=%d\n",&g_DevExt, pSession, rc,(int)RTProcSelf()));
ASMAtomicIncU32(&cUsers);
*cookie = pSession;
return B_OK;
}
LogRel((DRIVER_NAME ":vgdrvHaikuOpen: failed. rc=%d\n", rc));
return RTErrConvertToErrno(rc);
}
/**
* Device open. Called on open /dev/vboxdrv
*
* @param pInode Pointer to inode info structure.
* @param pFilp Associated file pointer.
*/
static int vgdrvLinuxOpen(struct inode *pInode, struct file *pFilp)
{
int rc;
PVBOXGUESTSESSION pSession;
Log((DEVICE_NAME ": pFilp=%p pid=%d/%d %s\n", pFilp, RTProcSelf(), current->pid, current->comm));
/*
* Call common code to create the user session. Associate it with
* the file so we can access it in the other methods.
*/
rc = VGDrvCommonCreateUserSession(&g_DevExt, &pSession);
if (RT_SUCCESS(rc))
{
pFilp->private_data = pSession;
if (MINOR(pInode->i_rdev) == g_MiscDeviceUser.minor)
pSession->fUserSession = true;
}
Log(("vgdrvLinuxOpen: g_DevExt=%p pSession=%p rc=%d/%d (pid=%d/%d %s)\n",
&g_DevExt, pSession, rc, vgdrvLinuxConvertToNegErrno(rc), RTProcSelf(), current->pid, current->comm));
return vgdrvLinuxConvertToNegErrno(rc);
}
/**
* User context entry points
*
* @remarks fFlags are the flags passed to open() or to ldi_open_by_name. In
* the latter case the FKLYR flag is added to indicate that the caller
* is a kernel component rather than user land.
*/
static int vgdrvSolarisOpen(dev_t *pDev, int fFlags, int fType, cred_t *pCred)
{
int rc;
PVBOXGUESTSESSION pSession = NULL;
LogFlow(("vgdrvSolarisOpen:\n"));
/*
* Verify we are being opened as a character device.
*/
if (fType != OTYP_CHR)
return EINVAL;
vboxguest_state_t *pState = NULL;
unsigned iOpenInstance;
for (iOpenInstance = 0; iOpenInstance < 4096; iOpenInstance++)
{
if ( !ddi_get_soft_state(g_pvgdrvSolarisState, iOpenInstance) /* faster */
&& ddi_soft_state_zalloc(g_pvgdrvSolarisState, iOpenInstance) == DDI_SUCCESS)
{
pState = ddi_get_soft_state(g_pvgdrvSolarisState, iOpenInstance);
break;
}
}
if (!pState)
{
Log(("vgdrvSolarisOpen: too many open instances."));
return ENXIO;
}
/*
* Create a new session.
*
* Note! The devfs inode with the gid isn't readily available here, so we cannot easily
* to the vbox group detection like on linux. Read config instead?
*/
if (!(fFlags & FKLYR))
{
uint32_t fRequestor = VMMDEV_REQUESTOR_USERMODE | VMMDEV_REQUESTOR_TRUST_NOT_GIVEN;
if (crgetruid(pCred) == 0)
fRequestor |= VMMDEV_REQUESTOR_USR_ROOT;
else
fRequestor |= VMMDEV_REQUESTOR_USR_USER;
if (secpolicy_coreadm(pCred) == 0)
fRequestor |= VMMDEV_REQUESTOR_GRP_WHEEL;
/** @todo is there any way of detecting that the process belongs to someone on the physical console?
* secpolicy_console() [== PRIV_SYS_DEVICES] doesn't look quite right, or does it? */
fRequestor |= VMMDEV_REQUESTOR_CON_DONT_KNOW;
fRequestor |= VMMDEV_REQUESTOR_NO_USER_DEVICE; /** @todo implement vboxuser device node. */
rc = VGDrvCommonCreateUserSession(&g_DevExt, fRequestor, &pSession);
}
else
rc = VGDrvCommonCreateKernelSession(&g_DevExt, &pSession);
if (RT_SUCCESS(rc))
{
if (!(fFlags & FKLYR))
pState->pvProcRef = proc_ref();
else
pState->pvProcRef = NULL;
pState->pSession = pSession;
*pDev = makedevice(getmajor(*pDev), iOpenInstance);
Log(("vgdrvSolarisOpen: pSession=%p pState=%p pid=%d\n", pSession, pState, (int)RTProcSelf()));
return 0;
}
/* Failed, clean up. */
ddi_soft_state_free(g_pvgdrvSolarisState, iOpenInstance);
LogRel((DEVICE_NAME "::Open: VGDrvCommonCreateUserSession failed. rc=%d\n", rc));
return EFAULT;
}