SUPDrv-freebsd.c revision a93da6c0946d71f517dc6d64a633704cb99068b8
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * VBoxDrv - The VirtualBox Support Driver - FreeBSD specifics.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Copyright (c) 2007 knut st. osmundsen <bird-src-spam@anduin.net>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Permission is hereby granted, free of charge, to any person
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * obtaining a copy of this software and associated documentation
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * files (the "Software"), to deal in the Software without
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * restriction, including without limitation the rights to use,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * copy, modify, merge, publish, distribute, sublicense, and/or sell
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * copies of the Software, and to permit persons to whom the
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Software is furnished to do so, subject to the following
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * conditions:
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * The above copyright notice and this permission notice shall be
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync * included in all copies or substantial portions of the Software.
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * OTHER DEALINGS IN THE SOFTWARE.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/*******************************************************************************
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync* Header Files *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync*******************************************************************************/
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/* Deal with conflicts first. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/*******************************************************************************
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync* Internal Functions *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync*******************************************************************************/
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic int VBoxDrvFreeBSDModuleEvent(struct module *pMod, int enmEventType, void *pvArg);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic int VBoxDrvFreeBSDLoad(void);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic int VBoxDrvFreeBSDUnload(void);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic void VBoxDrvFreeBSDClone(void *pvArg, struct ucred *pCred, char *pachName, int cchName, struct cdev **ppDev);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic int VBoxDrvFreeBSDIOCtlSlow(PSUPDRVSESSION pSession, u_long ulCmd, caddr_t pvData, struct thread *pTd);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/*******************************************************************************
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync* Global Variables *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync*******************************************************************************/
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Module info structure used by the kernel.
* @return 0 on success, errno.h status code on failure.
int rc;
switch (enmEventType)
case MOD_LOAD:
case MOD_UNLOAD:
case MOD_SHUTDOWN:
case MOD_QUIESCE:
return EOPNOTSUPP;
static int VBoxDrvFreeBSDLoad(void)
g_cUsers = 0;
return VINF_SUCCESS;
RTR0Term();
return rc;
static int VBoxDrvFreeBSDUnload(void)
if (g_cUsers > 0)
return EBUSY;
RTR0Term();
return VINF_SUCCESS;
static void VBoxDrvFreeBSDClone(void *pvArg, struct ucred *pCred, char *pszName, int cchName, struct cdev **ppDev)
int iUnit;
int rc;
if (!ppDev)
if (rc)
#ifdef VBOX_WITH_HARDENING
*ppDev = make_dev(&g_VBoxDrvFreeBSDChrDevSW, unit2minor(iUnit), UID_ROOT, GID_WHEEL, 0600, "vboxdrv%d", iUnit);
*ppDev = make_dev(&g_VBoxDrvFreeBSDChrDevSW, unit2minor(iUnit), UID_ROOT, GID_WHEEL, 0666, "vboxdrv%d", iUnit);
if (*ppDev)
int rc;
return EINVAL;
return EBUSY;
dprintf(("VBoxDrvFreeBSDClose: fFile=%#x iUnit=%d pSession=%p\n", fFile, minor2unit(minor(pDev)), pSession));
static int VBoxDrvFreeBSDIOCtl(struct cdev *pDev, u_long ulCmd, caddr_t pvData, int fFile, struct thread *pTd)
return EINVAL;
static int VBoxDrvFreeBSDIOCtlSlow(PSUPDRVSESSION pSession, u_long ulCmd, caddr_t pvData, struct thread *pTd)
OSDBGPRINT(("VBoxDrvFreeBSDIOCtlSlow: cbReq=%#x < %#x; ulCmd=%#lx\n", cbReq, (int)sizeof(*pHdr), ulCmd));
return EINVAL;
return EINVAL;
OSDBGPRINT(("VBoxDrvFreeBSDIOCtlSlow: max(%#x,%#x) != %#x; ulCmd=%#lx\n", pHdr->cbIn, pHdr->cbOut, cbReq, ulCmd));
return EINVAL;
return rc;
return EINVAL;
return EINVAL;
OSDBGPRINT(("VBoxDrvFreeBSDIOCtlSlow: failed to allocate buffer of %d bytes; ulCmd=%#lx\n", cbReq, ulCmd));
return ENOMEM;
return rc;
return EINVAL;
if (pvUser)
OSDBGPRINT(("VBoxDrvFreeBSDIOCtlSlow: too much output! %#x > %#x; uCmd=%#lx!\n", cbOut, cbReq, ulCmd));
OSDBGPRINT(("VBoxDrvFreeBSDIOCtlSlow: copyout(%p,%p,%#x) -> %d; uCmd=%#lx!\n", pHdr, pvUser, cbOut, rc, ulCmd));
if (pvUser)
return rc;
return VERR_INVALID_POINTER;
if (pSession)
return VERR_INVALID_PARAMETER;
return VERR_INVALID_PARAMETER;
return VERR_INVALID_PARAMETER;
bool VBOXCALL supdrvOSObjCanAccess(PSUPDRVOBJ pObj, PSUPDRVSESSION pSession, const char *pszObjName, int *prc)
int cch;
return cch;