/**
* Device open. Called on open /dev/vboxguest and (later) /dev/vboxguestu.
*
* @param Dev The device number.
* @param fFlags ???.
* @param fDevType ???.
* @param pProcess The process issuing this request.
*/
static int VbgdDarwinOpen(dev_t Dev, int fFlags, int fDevType, struct proc *pProcess)
{
/*
* Only two minor devices numbers are allowed.
*/
if (minor(Dev) != 0 && minor(Dev) != 1)
return EACCES;
/*
* Find the session created by org_virtualbox_VBoxGuestClient, fail
* if no such session, and mark it as opened. We set the uid & gid
* here too, since that is more straight forward at this point.
*/
//const bool fUnrestricted = minor(Dev) == 0;
int rc = VINF_SUCCESS;
PVBOXGUESTSESSION pSession = NULL;
kauth_cred_t pCred = kauth_cred_proc_ref(pProcess);
if (pCred)
{
RTPROCESS Process = RTProcSelf();
unsigned iHash = SESSION_HASH(Process);
RTSpinlockAcquire(g_Spinlock);
pSession = g_apSessionHashTab[iHash];
while (pSession && pSession->Process != Process)
pSession = pSession->pNextHash;
if (pSession)
{
if (!pSession->fOpened)
{
pSession->fOpened = true;
/*pSession->fUnrestricted = fUnrestricted; - later */
}
else
rc = VERR_ALREADY_LOADED;
}
else
rc = VERR_GENERAL_FAILURE;
RTSpinlockRelease(g_Spinlock);
#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
kauth_cred_unref(&pCred);
#else /* 10.4 */
/* The 10.4u SDK headers and 10.4.11 kernel source have inconsistent definitions
of kauth_cred_unref(), so use the other (now deprecated) API for releasing it. */
kauth_cred_rele(pCred);
#endif /* 10.4 */
}
else
rc = VERR_INVALID_PARAMETER;
Log(("VbgdDarwinOpen: g_DevExt=%p pSession=%p rc=%d pid=%d\n", &g_DevExt, pSession, rc, proc_pid(pProcess)));
return VbgdDarwinErr2DarwinErr(rc);
}
/**
* Device open. Called on open /dev/vboxdrv
*
* @param Dev The device number.
* @param fFlags ???.
* @param fDevType ???.
* @param pProcess The process issuing this request.
*/
static int VBoxDrvDarwinOpen(dev_t Dev, int fFlags, int fDevType, struct proc *pProcess)
{
#ifdef DEBUG_DARWIN_GIP
char szName[128];
szName[0] = '\0';
proc_name(proc_pid(pProcess), szName, sizeof(szName));
Log(("VBoxDrvDarwinOpen: pid=%d '%s'\n", proc_pid(pProcess), szName));
#endif
/*
* Only two minor devices numbers are allowed.
*/
if (minor(Dev) != 0 && minor(Dev) != 1)
return EACCES;
/*
* Find the session created by org_virtualbox_SupDrvClient, fail
* if no such session, and mark it as opened. We set the uid & gid
* here too, since that is more straight forward at this point.
*/
const bool fUnrestricted = minor(Dev) == 0;
int rc = VINF_SUCCESS;
PSUPDRVSESSION pSession = NULL;
kauth_cred_t pCred = kauth_cred_proc_ref(pProcess);
if (pCred)
{
#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
RTUID Uid = kauth_cred_getruid(pCred);
RTGID Gid = kauth_cred_getrgid(pCred);
#else
RTUID Uid = pCred->cr_ruid;
RTGID Gid = pCred->cr_rgid;
#endif
RTPROCESS Process = RTProcSelf();
unsigned iHash = SESSION_HASH(Process);
RTSpinlockAcquire(g_Spinlock);
pSession = g_apSessionHashTab[iHash];
while (pSession && pSession->Process != Process)
pSession = pSession->pNextHash;
if (pSession)
{
if (!pSession->fOpened)
{
pSession->fOpened = true;
pSession->fUnrestricted = fUnrestricted;
pSession->Uid = Uid;
pSession->Gid = Gid;
}
else
rc = VERR_ALREADY_LOADED;
}
else
rc = VERR_GENERAL_FAILURE;
RTSpinlockReleaseNoInts(g_Spinlock);
#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
kauth_cred_unref(&pCred);
#else /* 10.4 */
/* The 10.4u SDK headers and 10.4.11 kernel source have inconsistent definitions
of kauth_cred_unref(), so use the other (now deprecated) API for releasing it. */
kauth_cred_rele(pCred);
#endif /* 10.4 */
}
else
rc = VERR_INVALID_PARAMETER;
#ifdef DEBUG_DARWIN_GIP
OSDBGPRINT(("VBoxDrvDarwinOpen: pid=%d '%s' pSession=%p rc=%d\n", proc_pid(pProcess), szName, pSession, rc));
#else
Log(("VBoxDrvDarwinOpen: g_DevExt=%p pSession=%p rc=%d pid=%d\n", &g_DevExt, pSession, rc, proc_pid(pProcess)));
#endif
return VBoxDrvDarwinErr2DarwinErr(rc);
}
