/**
* Common open code.
*
* @param pInode Pointer to inode info structure.
* @param pFilp Associated file pointer.
* @param fUnrestricted Indicates which device node which was opened.
*/
static int vboxdrvLinuxCreateCommon(struct inode *pInode, struct file *pFilp, bool fUnrestricted)
{
int rc;
PSUPDRVSESSION pSession;
Log(("VBoxDrvLinuxCreate: pFilp=%p pid=%d/%d %s\n", pFilp, RTProcSelf(), current->pid, current->comm));
#ifdef VBOX_WITH_HARDENING
/*
* Only root is allowed to access the unrestricted device, enforce it!
*/
if ( fUnrestricted
&& vboxdrvLinuxEuid() != 0 /* root */ )
{
Log(("VBoxDrvLinuxCreate: euid=%d, expected 0 (root)\n", vboxdrvLinuxEuid()));
return -EPERM;
}
#endif /* VBOX_WITH_HARDENING */
/*
* Call common code for the rest.
*/
rc = supdrvCreateSession(&g_DevExt, true /* fUser */, fUnrestricted, &pSession);
if (!rc)
{
pSession->Uid = vboxdrvLinuxUid();
pSession->Gid = vboxdrvLinuxGid();
}
pFilp->private_data = pSession;
Log(("VBoxDrvLinuxCreate: g_DevExt=%p pSession=%p rc=%d/%d (pid=%d/%d %s)\n",
&g_DevExt, pSession, rc, VBoxDrvLinuxErr2LinuxErr(rc),
RTProcSelf(), current->pid, current->comm));
return VBoxDrvLinuxErr2LinuxErr(rc);
}
DECLASM(int) VBoxDrvClose(uint16_t sfn)
{
Log(("VBoxDrvClose: pid=%d sfn=%d\n", (int)RTProcSelf(), sfn));
/*
* Remove from the hash table.
*/
PSUPDRVSESSION pSession;
const RTPROCESS Process = RTProcSelf();
const unsigned iHash = SESSION_HASH(sfn);
RTSpinlockAcquire(g_Spinlock);
pSession = g_apSessionHashTab[iHash];
if (pSession)
{
if ( pSession->sfn == sfn
&& pSession->Process == Process)
{
g_apSessionHashTab[iHash] = pSession->pNextHash;
pSession->pNextHash = NULL;
}
else
{
PSUPDRVSESSION pPrev = pSession;
pSession = pSession->pNextHash;
while (pSession)
{
if ( pSession->sfn == sfn
&& pSession->Process == Process)
{
pPrev->pNextHash = pSession->pNextHash;
pSession->pNextHash = NULL;
break;
}
/* next */
pPrev = pSession;
pSession = pSession->pNextHash;
}
}
}
RTSpinlockReleaseNoInts(g_Spinlock);
if (!pSession)
{
OSDBGPRINT(("VBoxDrvIoctl: WHUT?!? pSession == NULL! This must be a mistake... pid=%d sfn=%d\n", (int)Process, sfn));
return VERR_INVALID_PARAMETER;
}
/*
* Close the session.
*/
supdrvSessionRelease(pSession);
return 0;
}
/**
* Close device.
*/
static int VbgdDarwinClose(dev_t Dev, int fFlags, int fDevType, struct proc *pProcess)
{
Log(("VbgdDarwinClose: pid=%d\n", (int)RTProcSelf()));
Assert(proc_pid(pProcess) == (int)RTProcSelf());
/*
* Hand the session closing to org_virtualbox_VBoxGuestClient.
*/
org_virtualbox_VBoxGuestClient::sessionClose(RTProcSelf());
return 0;
}
static void tstRTProcQueryUsername(void)
{
RTTestISub("Basics");
size_t cbUser;
char szUser[1024];
memset(szUser, '-', sizeof(szUser));
/* negative stuff that may assert: */
bool fMayPanic = RTAssertSetMayPanic(false);
bool fQuiet = RTAssertSetQuiet(true);
RTTESTI_CHECK_RC(RTProcQueryUsername(RTProcSelf(), NULL, 8, &cbUser), VERR_INVALID_PARAMETER);
RTTESTI_CHECK_RC(RTProcQueryUsername(RTProcSelf(), szUser, 0, &cbUser), VERR_INVALID_PARAMETER);
RTTESTI_CHECK_RC(RTProcQueryUsername(RTProcSelf(), NULL, 0, NULL), VERR_INVALID_PARAMETER);
RTTESTI_CHECK_RC(RTProcQueryUsernameA(RTProcSelf(), NULL), VERR_INVALID_POINTER);
RTAssertSetMayPanic(fMayPanic);
RTAssertSetQuiet(fQuiet);
RTTESTI_CHECK_RC(RTProcQueryUsername(RTProcSelf(), NULL, 0, &cbUser), VERR_BUFFER_OVERFLOW);
memset(szUser, '-', sizeof(szUser));
RTTESTI_CHECK_RC(RTProcQueryUsername(RTProcSelf(), szUser, cbUser - 1, &cbUser), VERR_BUFFER_OVERFLOW);
memset(szUser, '-', sizeof(szUser));
RTTESTI_CHECK_RC(RTProcQueryUsername(RTProcSelf(), szUser, sizeof(szUser), &cbUser), VINF_SUCCESS);
RTTestPrintf(NULL, RTTESTLVL_ALWAYS, "Username: %s\n", szUser); /* */
char *pszUser = NULL;
RTTESTI_CHECK_RC(RTProcQueryUsernameA(RTProcSelf(), &pszUser), VINF_SUCCESS);
RTTestPrintf(NULL, RTTESTLVL_ALWAYS, "Username: %s\n", pszUser);
RTTESTI_CHECK(strcmp(pszUser, szUser) == 0);
RTStrFree(pszUser);
}
DECLASM(int) VBoxDrvIOCtlFast(uint16_t sfn, uint8_t iFunction)
{
/*
* Find the session.
*/
const RTPROCESS Process = RTProcSelf();
const unsigned iHash = SESSION_HASH(sfn);
PSUPDRVSESSION pSession;
RTSpinlockAcquire(g_Spinlock);
pSession = g_apSessionHashTab[iHash];
if (pSession && pSession->Process != Process)
{
do pSession = pSession->pNextHash;
while ( pSession
&& ( pSession->sfn != sfn
|| pSession->Process != Process));
if (RT_LIKELY(pSession))
supdrvSessionRetain(pSession);
}
RTSpinlockReleaseNoInts(g_Spinlock);
if (RT_UNLIKELY(!pSession))
{
OSDBGPRINT(("VBoxDrvIoctl: WHUT?!? pSession == NULL! This must be a mistake... pid=%d\n", (int)Process));
return VERR_INVALID_PARAMETER;
}
/*
* Dispatch the fast IOCtl.
*/
supdrvIOCtlFast(iFunction, 0, &g_DevExt, pSession);
supdrvSessionRelease(pSession);
return 0;
}
/**
* Creates a PID File and returns the open file descriptor.
*
* On DOS based system, file sharing (deny write) is used for locking the PID
* file.
*
* On Unix-y systems, an exclusive advisory lock is used for locking the PID
* file since the file sharing support is usually missing there.
*
* This API will overwrite any existing PID Files without a lock on them, on the
* assumption that they are stale files which an old process did not properly
* clean up.
*
* @returns IPRT status code.
* @param pszPath The path and filename to create the PID File under
* @param phFile Where to store the file descriptor of the open (and locked
* on Unix-y systems) PID File. On failure, or if another
* process owns the PID File, this will be set to NIL_RTFILE.
*/
VBGLR3DECL(int) VbglR3PidFile(const char *pszPath, PRTFILE phFile)
{
AssertPtrReturn(pszPath, VERR_INVALID_PARAMETER);
AssertPtrReturn(phFile, VERR_INVALID_PARAMETER);
*phFile = NIL_RTFILE;
RTFILE hPidFile;
int rc = RTFileOpen(&hPidFile, pszPath,
RTFILE_O_READWRITE | RTFILE_O_OPEN_CREATE | RTFILE_O_DENY_WRITE
| (0644 << RTFILE_O_CREATE_MODE_SHIFT));
if (RT_SUCCESS(rc))
{
#if !defined(RT_OS_WINDOWS) && !defined(RT_OS_OS2)
/** @todo using size 0 for locking means lock all on Posix.
* We should adopt this as our convention too, or something
* similar. */
rc = RTFileLock(hPidFile, RTFILE_LOCK_WRITE, 0, 0);
if (RT_FAILURE(rc))
RTFileClose(hPidFile);
else
#endif
{
char szBuf[256];
size_t cbPid = RTStrPrintf(szBuf, sizeof(szBuf), "%d\n",
RTProcSelf());
RTFileWrite(hPidFile, szBuf, cbPid, NULL);
*phFile = hPidFile;
}
}
return rc;
}
/**
* Close device.
*
* @param pInode Pointer to inode info structure.
* @param pFilp Associated file pointer.
*/
static int VBoxNetAdpLinuxClose(struct inode *pInode, struct file *pFilp)
{
Log(("VBoxNetAdpLinuxClose: pid=%d/%d %s\n",
RTProcSelf(), current->pid, current->comm));
pFilp->private_data = NULL;
return 0;
}
static int VBoxGuestSolarisClose(dev_t Dev, int flag, int fType, cred_t *pCred)
{
LogFlow((DEVICE_NAME "::Close pid=%d\n", (int)RTProcSelf()));
PVBOXGUESTSESSION pSession = NULL;
vboxguest_state_t *pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, getminor(Dev));
if (!pState)
{
Log((DEVICE_NAME "::Close: failed to get pState.\n"));
return EFAULT;
}
proc_unref(pState->pvProcRef);
pSession = pState->pSession;
pState->pSession = NULL;
Log((DEVICE_NAME "::Close: pSession=%p pState=%p\n", pSession, pState));
ddi_soft_state_free(g_pVBoxGuestSolarisState, getminor(Dev));
if (!pSession)
{
Log((DEVICE_NAME "::Close: failed to get pSession.\n"));
return EFAULT;
}
/*
* Close the session.
*/
VBoxGuestCloseSession(&g_DevExt, pSession);
return 0;
}
static int vgdrvSolarisClose(dev_t Dev, int flag, int fType, cred_t *pCred)
{
LogFlow(("vgdrvSolarisClose: pid=%d\n", (int)RTProcSelf()));
PVBOXGUESTSESSION pSession = NULL;
vboxguest_state_t *pState = ddi_get_soft_state(g_pvgdrvSolarisState, getminor(Dev));
if (!pState)
{
Log(("vgdrvSolarisClose: failed to get pState.\n"));
return EFAULT;
}
if (pState->pvProcRef != NULL)
{
proc_unref(pState->pvProcRef);
pState->pvProcRef = NULL;
}
pSession = pState->pSession;
pState->pSession = NULL;
Log(("vgdrvSolarisClose: pSession=%p pState=%p\n", pSession, pState));
ddi_soft_state_free(g_pvgdrvSolarisState, getminor(Dev));
if (!pSession)
{
Log(("vgdrvSolarisClose: failed to get pSession.\n"));
return EFAULT;
}
/*
* Close the session.
*/
if (pSession)
VGDrvCommonCloseSession(&g_DevExt, pSession);
return 0;
}
/**
* Close device.
*
* @param pInode Pointer to inode info structure.
* @param pFilp Associated file pointer.
*/
static int VBoxDrvLinuxClose(struct inode *pInode, struct file *pFilp)
{
Log(("VBoxDrvLinuxClose: pFilp=%p pSession=%p pid=%d/%d %s\n",
pFilp, pFilp->private_data, RTProcSelf(), current->pid, current->comm));
supdrvSessionRelease((PSUPDRVSESSION)pFilp->private_data);
pFilp->private_data = NULL;
return 0;
}
/**
* The client exits abnormally / forgets to do cleanups. (logging)
*/
IOReturn org_virtualbox_SupDrvClient::clientDied(void)
{
LogFlow(("org_virtualbox_SupDrvClient::clientDied([%p]) m_Task=%p R0Process=%p Process=%d\n",
this, m_Task, RTR0ProcHandleSelf(), RTProcSelf()));
/* IOUserClient::clientDied() calls clientClose, so we'll just do the work there. */
return IOUserClient::clientDied();
}
/**
* Driver ioctl, an alternate entry point for this character driver.
*
* @param Dev Device number
* @param Cmd Operation identifier
* @param pArg Arguments from user to driver
* @param Mode Information bitfield (read/write, address space etc.)
* @param pCred User credentials
* @param pVal Return value for calling process.
*
* @return corresponding solaris error code.
*/
static int VBoxDrvSolarisIOCtl(dev_t Dev, int Cmd, intptr_t pArgs, int Mode, cred_t *pCred, int *pVal)
{
#ifndef USE_SESSION_HASH
/*
* Get the session from the soft state item.
*/
vbox_devstate_t *pState = ddi_get_soft_state(g_pVBoxDrvSolarisState, getminor(Dev));
if (!pState)
{
LogRel((DEVICE_NAME ":VBoxDrvSolarisIOCtl: no state data for %#x (%d)\n", Dev, getminor(Dev)));
return EINVAL;
}
PSUPDRVSESSION pSession = pState->pSession;
if (!pSession)
{
LogRel((DEVICE_NAME ":VBoxDrvSolarisIOCtl: no session in state data for %#x (%d)\n", Dev, getminor(Dev)));
return DDI_SUCCESS;
}
#else
const RTPROCESS Process = RTProcSelf();
const unsigned iHash = SESSION_HASH(Process);
PSUPDRVSESSION pSession;
/*
* Find the session.
*/
RTSpinlockAcquire(g_Spinlock);
pSession = g_apSessionHashTab[iHash];
if (pSession && pSession->Process != Process)
{
do pSession = pSession->pNextHash;
while (pSession && pSession->Process != Process);
}
RTSpinlockReleaseNoInts(g_Spinlock);
if (!pSession)
{
LogRel((DEVICE_NAME ":VBoxSupDrvIOCtl: WHAT?!? pSession == NULL! This must be a mistake... pid=%d iCmd=%#x\n",
(int)Process, Cmd));
return EINVAL;
}
#endif
/*
* Deal with the two high-speed IOCtl that takes it's arguments from
* the session and iCmd, and only returns a VBox status code.
*/
if ( Cmd == SUP_IOCTL_FAST_DO_RAW_RUN
|| Cmd == SUP_IOCTL_FAST_DO_HWACC_RUN
|| Cmd == SUP_IOCTL_FAST_DO_NOP)
{
*pVal = supdrvIOCtlFast(Cmd, pArgs, &g_DevExt, pSession);
return 0;
}
return VBoxDrvSolarisIOCtlSlow(pSession, Cmd, Mode, pArgs);
}
/**
* Close device.
*
* @param pInode Pointer to inode info structure.
* @param pFilp Associated file pointer.
*/
static int vboxguestLinuxRelease(struct inode *pInode, struct file *pFilp)
{
Log(("vboxguestLinuxRelease: pFilp=%p pSession=%p pid=%d/%d %s\n",
pFilp, pFilp->private_data, RTProcSelf(), current->pid, current->comm));
VBoxGuestCloseSession(&g_DevExt, (PVBOXGUESTSESSION)pFilp->private_data);
pFilp->private_data = NULL;
return 0;
}
RTR3DECL(int) RTProcQueryParent(RTPROCESS hProcess, PRTPROCESS phParent)
{
if (hProcess == RTProcSelf())
{
*phParent = getppid();
return VINF_SUCCESS;
}
return VERR_NOT_SUPPORTED;
}
/**
* Device open. Called on open /dev/vboxdrv
*
* @param pInode Pointer to inode info structure.
* @param pFilp Associated file pointer.
*/
static int vboxguestLinuxOpen(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 = VBoxGuestCreateUserSession(&g_DevExt, &pSession);
if (RT_SUCCESS(rc))
pFilp->private_data = pSession;
Log(("vboxguestLinuxOpen: g_DevExt=%p pSession=%p rc=%d/%d (pid=%d/%d %s)\n",
&g_DevExt, pSession, rc, vboxguestLinuxConvertToNegErrno(rc),
RTProcSelf(), current->pid, current->comm));
return vboxguestLinuxConvertToNegErrno(rc);
}
/**
* 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 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);
}
STDMETHODIMP Session::GetPID(ULONG *aPid)
{
AssertReturn(aPid, E_POINTER);
AutoCaller autoCaller(this);
AssertComRCReturn(autoCaller.rc(), autoCaller.rc());
AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
*aPid = (ULONG)RTProcSelf();
AssertCompile(sizeof(*aPid) == sizeof(RTPROCESS));
return S_OK;
}
/**
* Close device.
*
* @param pInode Pointer to inode info structure.
* @param pFilp Associated file pointer.
*/
static int vboxguestLinuxRelease(struct inode *pInode, struct file *pFilp)
{
Log(("vboxguestLinuxRelease: pFilp=%p pSession=%p pid=%d/%d %s\n",
pFilp, pFilp->private_data, RTProcSelf(), current->pid, current->comm));
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 28)
/* This housekeeping was needed in older kernel versions to ensure that
* the file pointer didn't get left on the polling queue. */
vboxguestFAsync(-1, pFilp, 0);
#endif
VbgdCommonCloseSession(&g_DevExt, (PVBOXGUESTSESSION)pFilp->private_data);
pFilp->private_data = NULL;
return 0;
}
/**
* Initializer called when the client opens the service.
*/
bool org_virtualbox_SupDrvClient::initWithTask(task_t OwningTask, void *pvSecurityId, UInt32 u32Type)
{
LogFlow(("org_virtualbox_SupDrvClient::initWithTask([%p], %#x, %p, %#x) (cur pid=%d proc=%p)\n",
this, OwningTask, pvSecurityId, u32Type, RTProcSelf(), RTR0ProcHandleSelf()));
AssertMsg((RTR0PROCESS)OwningTask == RTR0ProcHandleSelf(), ("%p %p\n", OwningTask, RTR0ProcHandleSelf()));
if (!OwningTask)
return false;
if (IOUserClient::initWithTask(OwningTask, pvSecurityId , u32Type))
{
m_Task = OwningTask;
m_pSession = NULL;
m_pProvider = NULL;
return true;
}
return false;
}
/**
* Device open. Called on open /dev/vboxnetctl
*
* @param pInode Pointer to inode info structure.
* @param pFilp Associated file pointer.
*/
static int VBoxNetAdpLinuxOpen(struct inode *pInode, struct file *pFilp)
{
Log(("VBoxNetAdpLinuxOpen: pid=%d/%d %s\n", RTProcSelf(), current->pid, current->comm));
#ifdef VBOX_WITH_HARDENING
/*
* Only root is allowed to access the device, enforce it!
*/
if (!capable(CAP_SYS_ADMIN))
{
Log(("VBoxNetAdpLinuxOpen: admin privileges required!\n"));
return -EPERM;
}
#endif
return 0;
}
static int VBoxUSBMonSolarisOpen(dev_t *pDev, int fFlag, int fType, cred_t *pCred)
{
vboxusbmon_state_t *pState = NULL;
unsigned iOpenInstance;
LogFunc((DEVICE_NAME ": VBoxUSBMonSolarisOpen\n"));
/*
* Verify we are being opened as a character device.
*/
if (fType != OTYP_CHR)
return EINVAL;
/*
* Verify that we're called after attach.
*/
if (!g_pDip)
{
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisOpen: Invalid state for opening\n"));
return ENXIO;
}
for (iOpenInstance = 0; iOpenInstance < 4096; iOpenInstance++)
{
if ( !ddi_get_soft_state(g_pVBoxUSBMonSolarisState, iOpenInstance) /* faster */
&& ddi_soft_state_zalloc(g_pVBoxUSBMonSolarisState, iOpenInstance) == DDI_SUCCESS)
{
pState = ddi_get_soft_state(g_pVBoxUSBMonSolarisState, iOpenInstance);
break;
}
}
if (!pState)
{
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisOpen: Too many open instances"));
return ENXIO;
}
pState->Process = RTProcSelf();
*pDev = makedevice(getmajor(*pDev), iOpenInstance);
NOREF(fFlag);
NOREF(pCred);
return 0;
}
RTR3DECL(int) RTProcQueryUsernameA(RTPROCESS hProcess, char **ppszUser)
{
AssertPtrReturn(ppszUser, VERR_INVALID_POINTER);
int rc;
if ( hProcess == NIL_RTPROCESS
|| hProcess == RTProcSelf())
{
/*
* Figure a good buffer estimate.
*/
int32_t cbPwdMax = sysconf(_SC_GETPW_R_SIZE_MAX);
if (cbPwdMax <= _1K)
cbPwdMax = _1K;
else
AssertStmt(cbPwdMax <= 32*_1M, cbPwdMax = 32*_1M);
char *pchBuf = (char *)RTMemTmpAllocZ(cbPwdMax);
if (pchBuf)
{
/*
* Get the password file entry.
*/
struct passwd Pwd;
struct passwd *pPwd = NULL;
rc = getpwuid_r(geteuid(), &Pwd, pchBuf, cbPwdMax, &pPwd);
if (!rc)
{
/*
* Convert the name to UTF-8, assuming that we're getting it in the local codeset.
*/
rc = RTStrCurrentCPToUtf8(ppszUser, pPwd->pw_name);
}
else
rc = RTErrConvertFromErrno(rc);
RTMemFree(pchBuf);
}
else
rc = VERR_NO_TMP_MEMORY;
}
else
rc = VERR_NOT_SUPPORTED;
return rc;
}
RTR3DECL(int) RTProcQueryUsername(RTPROCESS hProcess, char *pszUser, size_t cbUser,
size_t *pcbUser)
{
AssertReturn( (pszUser && cbUser > 0)
|| (!pszUser && !cbUser), VERR_INVALID_PARAMETER);
if (hProcess != RTProcSelf())
return VERR_NOT_SUPPORTED;
int32_t cbPwdMax = sysconf(_SC_GETPW_R_SIZE_MAX);
if (cbPwdMax == -1)
return RTErrConvertFromErrno(errno);
char *pbBuf = (char *)RTMemAllocZ(cbPwdMax);
if (!pbBuf)
return VERR_NO_MEMORY;
struct passwd Pwd, *pPwd;
int rc = getpwuid_r(geteuid(), &Pwd, pbBuf, cbPwdMax, &pPwd);
if (!rc)
{
size_t cbPwdUser = strlen(pPwd->pw_name) + 1;
if (pcbUser)
*pcbUser = cbPwdUser;
if (cbPwdUser > cbUser)
rc = VERR_BUFFER_OVERFLOW;
else
{
memcpy(pszUser, pPwd->pw_name, cbPwdUser);
rc = VINF_SUCCESS;
}
}
else
rc = RTErrConvertFromErrno(rc);
RTMemFree(pbBuf);
return rc;
}
/**
* Client exits normally.
*/
IOReturn org_virtualbox_SupDrvClient::clientClose(void)
{
LogFlow(("org_virtualbox_SupDrvClient::clientClose([%p]) (cur pid=%d proc=%p)\n", this, RTProcSelf(), RTR0ProcHandleSelf()));
AssertMsg((RTR0PROCESS)m_Task == RTR0ProcHandleSelf(), ("%p %p\n", m_Task, RTR0ProcHandleSelf()));
/*
* Clean up the session if it's still around.
*
* We cannot rely 100% on close, and in the case of a dead client
* we'll end up hanging inside vm_map_remove() if we postpone it.
*/
if (m_pSession)
{
sessionClose(RTProcSelf());
Assert(!m_pSession);
}
m_pProvider = NULL;
terminate();
return kIOReturnSuccess;
}
static int VBoxUSBMonSolarisIOCtl(dev_t Dev, int Cmd, intptr_t pArg, int Mode, cred_t *pCred, int *pVal)
{
LogFunc((DEVICE_NAME ":VBoxUSBMonSolarisIOCtl Dev=%d Cmd=%d pArg=%p Mode=%d\n", Dev, Cmd, pArg));
/*
* Get the session from the soft state item.
*/
vboxusbmon_state_t *pState = ddi_get_soft_state(g_pVBoxUSBMonSolarisState, getminor(Dev));
if (!pState)
{
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisIOCtl: no state data for %d\n", getminor(Dev)));
return EINVAL;
}
/*
* Read the request wrapper. Though We don't really need wrapper struct. now
* it's room for the future as Solaris isn't generous regarding the size.
*/
VBOXUSBREQ ReqWrap;
if (IOCPARM_LEN(Cmd) != sizeof(ReqWrap))
{
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisIOCtl: bad request %#x size=%d expected=%d\n", Cmd, IOCPARM_LEN(Cmd), sizeof(ReqWrap)));
return ENOTTY;
}
int rc = ddi_copyin((void *)pArg, &ReqWrap, sizeof(ReqWrap), Mode);
if (RT_UNLIKELY(rc))
{
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisIOCtl: ddi_copyin failed to read header pArg=%p Cmd=%d. rc=%d.\n", pArg, Cmd, rc));
return EINVAL;
}
if (ReqWrap.u32Magic != VBOXUSBMON_MAGIC)
{
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisIOCtl: bad magic %#x; pArg=%p Cmd=%d.\n", ReqWrap.u32Magic, pArg, Cmd));
return EINVAL;
}
if (RT_UNLIKELY( ReqWrap.cbData == 0
|| ReqWrap.cbData > _1M*16))
{
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisIOCtl: bad size %#x; pArg=%p Cmd=%d.\n", ReqWrap.cbData, pArg, Cmd));
return EINVAL;
}
/*
* Read the request.
*/
void *pvBuf = RTMemTmpAlloc(ReqWrap.cbData);
if (RT_UNLIKELY(!pvBuf))
{
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisIOCtl: RTMemTmpAlloc failed to alloc %d bytes.\n", ReqWrap.cbData));
return ENOMEM;
}
rc = ddi_copyin((void *)(uintptr_t)ReqWrap.pvDataR3, pvBuf, ReqWrap.cbData, Mode);
if (RT_UNLIKELY(rc))
{
RTMemTmpFree(pvBuf);
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisIOCtl: ddi_copyin failed; pvBuf=%p pArg=%p Cmd=%d. rc=%d\n", pvBuf, pArg, Cmd, rc));
return EFAULT;
}
if (RT_UNLIKELY( ReqWrap.cbData != 0
&& !VALID_PTR(pvBuf)))
{
RTMemTmpFree(pvBuf);
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisIOCtl: pvBuf invalid pointer %p\n", pvBuf));
return EINVAL;
}
Log((DEVICE_NAME ":VBoxUSBMonSolarisIOCtl: pid=%d.\n", (int)RTProcSelf()));
/*
* Process the IOCtl.
*/
size_t cbDataReturned;
rc = vboxUSBMonSolarisProcessIOCtl(Cmd, pState, pvBuf, ReqWrap.cbData, &cbDataReturned);
ReqWrap.rc = rc;
rc = 0;
if (RT_UNLIKELY(cbDataReturned > ReqWrap.cbData))
{
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisIOCtl: too much output data %d expected %d\n", cbDataReturned, ReqWrap.cbData));
cbDataReturned = ReqWrap.cbData;
}
ReqWrap.cbData = cbDataReturned;
/*
* Copy the request back to user space.
*/
rc = ddi_copyout(&ReqWrap, (void *)pArg, sizeof(ReqWrap), Mode);
if (RT_LIKELY(!rc))
{
/*
* Copy the payload (if any) back to user space.
*/
if (cbDataReturned > 0)
{
rc = ddi_copyout(pvBuf, (void *)(uintptr_t)ReqWrap.pvDataR3, cbDataReturned, Mode);
if (RT_UNLIKELY(rc))
{
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisIOCtl: ddi_copyout failed; pvBuf=%p pArg=%p Cmd=%d. rc=%d\n", pvBuf, pArg, Cmd, rc));
rc = EFAULT;
}
}
}
else
{
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisIOCtl: ddi_copyout(1) failed pArg=%p Cmd=%d\n", pArg, Cmd));
rc = EFAULT;
}
*pVal = rc;
RTMemTmpFree(pvBuf);
return rc;
}
static int VBoxUSBMonSolarisOpen(dev_t *pDev, int fFlag, int fType, cred_t *pCred)
{
vboxusbmon_state_t *pState = NULL;
unsigned iOpenInstance;
LogFunc((DEVICE_NAME ":VBoxUSBMonSolarisOpen\n"));
/*
* Verify we are being opened as a character device.
*/
if (fType != OTYP_CHR)
return EINVAL;
/*
* Verify that we're called after attach.
*/
if (!g_pDip)
{
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisOpen invalid state for opening.\n"));
return ENXIO;
}
mutex_enter(&g_VBoxUSBMonSolarisMtx);
if (!g_cVBoxUSBMonSolarisClient)
{
mutex_exit(&g_VBoxUSBMonSolarisMtx);
int rc = usb_register_dev_driver(g_pDip, VBoxUSBMonSolarisElectDriver);
if (RT_UNLIKELY(rc != DDI_SUCCESS))
{
LogRel((DEVICE_NAME ":Failed to register driver election callback with USBA rc=%d\n", rc));
return EINVAL;
}
Log((DEVICE_NAME ":Successfully registered election callback with USBA\n"));
mutex_enter(&g_VBoxUSBMonSolarisMtx);
}
g_cVBoxUSBMonSolarisClient++;
mutex_exit(&g_VBoxUSBMonSolarisMtx);
for (iOpenInstance = 0; iOpenInstance < 4096; iOpenInstance++)
{
if ( !ddi_get_soft_state(g_pVBoxUSBMonSolarisState, iOpenInstance) /* faster */
&& ddi_soft_state_zalloc(g_pVBoxUSBMonSolarisState, iOpenInstance) == DDI_SUCCESS)
{
pState = ddi_get_soft_state(g_pVBoxUSBMonSolarisState, iOpenInstance);
break;
}
}
if (!pState)
{
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisOpen: too many open instances."));
mutex_enter(&g_VBoxUSBMonSolarisMtx);
g_cVBoxUSBMonSolarisClient--;
mutex_exit(&g_VBoxUSBMonSolarisMtx);
return ENXIO;
}
pState->Process = RTProcSelf();
*pDev = makedevice(getmajor(*pDev), iOpenInstance);
NOREF(fFlag);
NOREF(pCred);
return 0;
}
/**
* Worker that we can wrap with error variable saving and restoring.
*/
static bool rtAssertShouldPanicWorker(void)
{
/*
* Check for the VBOX_ASSERT variable.
*/
const char *psz = RTEnvGet("VBOX_ASSERT");
/* not defined => default behaviour. */
if (!psz)
return true;
/* 'breakpoint' or 'panic' means default behaviour. */
if (!strcmp(psz, "breakpoint") || !strcmp(psz, "panic"))
return true;
#ifdef VBOX_RTASSERT_WITH_GDB
/* 'gdb' - means try launch a gdb session in xterm. */
if (!strcmp(psz, "gdb"))
{
/* Did we already fire up gdb? If so, just hit the breakpoint. */
static bool volatile s_fAlreadyLaunchedGdb = false;
if (ASMAtomicUoReadBool(&s_fAlreadyLaunchedGdb))
return true;
/* Try find a suitable terminal program. */
const char *pszTerm = RTEnvGet("VBOX_ASSERT_TERM");
if ( !pszTerm
|| !RTPathExists(pszTerm))
{
pszTerm = "/usr/bin/gnome-terminal";
if (!RTPathExists(pszTerm))
{
pszTerm = "/usr/X11R6/bin/xterm";
if (!RTPathExists(pszTerm))
{
pszTerm ="/usr/bin/xterm";
if (!RTPathExists(pszTerm))
return true;
}
}
}
/* And find gdb. */
const char *pszGdb = RTEnvGet("VBOX_ASSERT_GDB");
if ( !pszGdb
|| !RTPathExists(pszGdb))
{
pszGdb = "/usr/bin/gdb";
if (!RTPathExists(pszGdb))
pszGdb = "gdb";
}
/* Try spawn the process. */
char szCmd[512];
size_t cch = RTStrPrintf(szCmd, sizeof(szCmd), "%s -p %d ", pszGdb, RTProcSelf());
if (cch < sizeof(szCmd))
{
char *pszExecName = &szCmd[cch];
if (!RTProcGetExecutablePath(pszExecName, sizeof(szCmd) - cch))
*pszExecName = '\0';
}
const char *apszArgs[] =
{
pszTerm,
"-e",
szCmd,
NULL
};
RTPROCESS Process;
int rc = RTProcCreate(apszArgs[0], &apszArgs[0], RTENV_DEFAULT, 0, &Process);
if (RT_FAILURE(rc))
return false;
ASMAtomicWriteBool(&s_fAlreadyLaunchedGdb, true);
/* Wait for gdb to attach. */
RTThreadSleep(15000);
return true;
}
#endif
/* '*' - don't hit the breakpoint. */
return false;
}
static int vboxguestLinuxIOCtl(struct inode *pInode, struct file *pFilp, unsigned int uCmd, unsigned long ulArg)
#endif
{
PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pFilp->private_data;
uint32_t cbData = _IOC_SIZE(uCmd);
void *pvBufFree;
void *pvBuf;
int rc;
uint64_t au64Buf[32/sizeof(uint64_t)];
Log6(("vboxguestLinuxIOCtl: pFilp=%p uCmd=%#x ulArg=%p pid=%d/%d\n", pFilp, uCmd, (void *)ulArg, RTProcSelf(), current->pid));
/*
* Buffer the request.
*/
if (cbData <= sizeof(au64Buf))
{
pvBufFree = NULL;
pvBuf = &au64Buf[0];
}
else
{
pvBufFree = pvBuf = RTMemTmpAlloc(cbData);
if (RT_UNLIKELY(!pvBuf))
{
LogRel((DEVICE_NAME "::IOCtl: RTMemTmpAlloc failed to alloc %u bytes.\n", cbData));
return -ENOMEM;
}
}
if (RT_LIKELY(copy_from_user(pvBuf, (void *)ulArg, cbData) == 0))
{
/*
* Process the IOCtl.
*/
size_t cbDataReturned;
rc = VbgdCommonIoCtl(uCmd, &g_DevExt, pSession, pvBuf, cbData, &cbDataReturned);
/*
* Copy ioctl data and output buffer back to user space.
*/
if (RT_SUCCESS(rc))
{
rc = 0;
if (RT_UNLIKELY(cbDataReturned > cbData))
{
LogRel((DEVICE_NAME "::IOCtl: too much output data %u expected %u\n", cbDataReturned, cbData));
cbDataReturned = cbData;
}
if (cbDataReturned > 0)
{
if (RT_UNLIKELY(copy_to_user((void *)ulArg, pvBuf, cbDataReturned) != 0))
{
LogRel((DEVICE_NAME "::IOCtl: copy_to_user failed; pvBuf=%p ulArg=%p cbDataReturned=%u uCmd=%d\n",
pvBuf, (void *)ulArg, cbDataReturned, uCmd, rc));
rc = -EFAULT;
}
}
}
else
{
Log(("vboxguestLinuxIOCtl: pFilp=%p uCmd=%#x ulArg=%p failed, rc=%d\n", pFilp, uCmd, (void *)ulArg, rc));
rc = -rc; Assert(rc > 0); /* Positive returns == negated VBox error status codes. */
}
}
else
{
Log((DEVICE_NAME "::IOCtl: copy_from_user(,%#lx, %#x) failed; uCmd=%#x.\n", ulArg, cbData, uCmd));
rc = -EFAULT;
}
if (pvBufFree)
RTMemFree(pvBufFree);
Log6(("vboxguestLinuxIOCtl: returns %d (pid=%d/%d)\n", rc, RTProcSelf(), current->pid));
return rc;
}
int main()
{
/*
* Init the runtime and stuff.
*/
RTTEST hTest;
int rc = RTTestInitAndCreate("tstFork", &hTest);
if (rc)
return rc;
RTTestBanner(hTest);
#ifdef RT_OS_WINDOWS
RTTestPrintf(hTest, RTTESTLVL_ALWAYS, "Skipped\n");
#else
/*
* Get values that are supposed to or change across the fork.
*/
RTPROCESS const ProcBefore = RTProcSelf();
/*
* Fork.
*/
pid_t pid = fork();
if (pid == 0)
{
/*
* Check that the values has changed.
*/
rc = 0;
if (ProcBefore == RTProcSelf())
{
RTTestFailed(hTest, "%RTproc == %RTproc [child]", ProcBefore, RTProcSelf());
rc = 1;
}
return rc;
}
if (pid != -1)
{
/*
* Check that the values didn't change.
*/
RTTEST_CHECK(hTest, ProcBefore == RTProcSelf());
/*
* Wait for the child.
*/
rc = 1;
while ( waitpid(pid, &rc, 0)
&& errno == EINTR)
rc = 1;
if (!WIFEXITED(rc) || WEXITSTATUS(rc) != 0)
RTTestFailed(hTest, "rc=%#x", rc);
}
else
RTTestFailed(hTest, "fork() failed: %d - %s", errno, strerror(errno));
#endif
/*
* Summary
*/
return RTTestSummaryAndDestroy(hTest);
}
