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/*********************************************************
* Copyright (C) 2006-2015 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* hostType.c --
*
* Platform-independent code that calls into hostType<OS>-specific
* code to determine the host OS type.
*/
#include <stdlib.h>
#include <string.h>
#include "vmware.h"
#include "hostType.h"
#include "str.h"
/*
* XXX see bug 651592 for how to make this not warn on newer linux hosts
* that have deprecated sysctl.
*/
#if defined(VMX86_SERVER) || ((defined(VMX86_VPX) || defined(VMX86_VMACORE)) && defined(linux))
#include <errno.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <unistd.h>
#include "uwvmkAPI.h"
#define DO_REAL_HOST_CHECK
#endif
#define LGPFX "HOSTTYPE:"
/*
*----------------------------------------------------------------------
*
* HostTypeOSVMKernelType --
*
* Are we running on a flavor of VMKernel? Only if the KERN_OSTYPE
* sysctl returns one of USERWORLD_SYSCTL_KERN_OSTYPE,
* USERWORLD_SYSCTL_VISOR_OSTYPE or USERWORLD_SYSCTL_VISOR64_OSTYPE
*
* Results:
* 4 if running in a VMvisor UserWorld on the 64-bit vmkernel in ESX.
* 3 if running directly in a UserWorld on the 64-bit vmkernel** in ESX.
* 2 if running in a VMvisor UserWorld on the vmkernel in ESX.
* 1 if running directly in a UserWorld on the vmkernel in ESX.
* 0 if running on the COS or in a non-server product.
*
* **Note that 64-bit vmkernel in ESX does not currently exist.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static int
HostTypeOSVMKernelType(void)
{
#ifdef DO_REAL_HOST_CHECK
static int vmkernelType = -1;
if (vmkernelType == -1) {
char osname[128];
size_t osnameLength;
int kernOsTypeCtl[] = { CTL_KERN, KERN_OSTYPE };
int rc;
osnameLength = sizeof(osname);
rc = sysctl(kernOsTypeCtl, ARRAYSIZE(kernOsTypeCtl),
osname, &osnameLength,
0, 0);
if (rc == 0) {
osnameLength = MAX(sizeof (osname), osnameLength);
/*
* XXX Yes, this is backwards in order of probability now, but we
* call it only once and anyway someday it won't be backwards ...
*/
if (! strncmp(osname, USERWORLD_SYSCTL_VISOR64_OSTYPE,
osnameLength)) {
vmkernelType = 4;
} else if (! strncmp(osname, USERWORLD_SYSCTL_KERN64_OSTYPE,
osnameLength)) {
vmkernelType = 3;
} else if (! strncmp(osname, USERWORLD_SYSCTL_VISOR_OSTYPE,
osnameLength)) {
vmkernelType = 2;
} else if (! strncmp(osname, USERWORLD_SYSCTL_KERN_OSTYPE,
osnameLength)) {
vmkernelType = 1;
} else {
vmkernelType = 0;
}
} else {
/*
* XXX too many of the callers don't define Warning. See bug 125455
*/
vmkernelType = 0;
}
}
return (vmkernelType);
#else
/* Non-linux builds are never running in a userworld */
return 0;
#endif
}
/*
*----------------------------------------------------------------------
*
* HostType_OSIsVMK --
*
* Are we running on the VMKernel (_any_ varient)? True if KERN_OSTYPE
* sysctl returns _any_ of
*
* "UserWorld/VMKernel"
* "VMKernel"
* "UserWorld/VMKernel64"
* "VMKernel64"
*
* Results:
* TRUE if running in a UserWorld on the vmkernel in ESX.
* FALSE if running on the COS or in a non-server product.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Bool
HostType_OSIsVMK(void)
{
return (HostTypeOSVMKernelType() > 0);
}
/*
*----------------------------------------------------------------------
*
* HostType_OSIsPureVMK --
*
* Are we running on the VMvisor VMKernel (_any_ bitness)? True if
* KERN_OSTYPE sysctl returns "VMKernel" or "VMKernel64".
*
* Results:
* TRUE if running in a VMvisor UserWorld on the vmkernel in ESX.
* FALSE if running on any other type of ESX or in a non-server product.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Bool
HostType_OSIsPureVMK(void)
{
return (HostTypeOSVMKernelType() == 2 || HostTypeOSVMKernelType() == 4);
}
/*
*----------------------------------------------------------------------
*
* HostType_OSIsVMK64 --
*
* Are we running on a 64-bit VMKernel? Only if the KERN_OSTYPE
* sysctl returns "UserWorld/VMKernel64" or "VMKernel64".
*
* Results:
* TRUE if running in a UserWorld on a 64-bit vmkernel in ESX or VMvisor.
* FALSE if running on a 32-bit VMkernel in ESX or in a non-server product.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Bool
HostType_OSIsVMK64(void)
{
return (HostTypeOSVMKernelType() == 3 || HostTypeOSVMKernelType() == 4);
}
/*
*----------------------------------------------------------------------
*
* HostType_OSIsSimulator --
*
* Are we running on an ESX host simulator? Check presence of the
* mockup file.
*
* Results:
* TRUE if mockup file exists
* FALSE if the file doesn't exist
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Bool
HostType_OSIsSimulator(void)
{
#ifdef DO_REAL_HOST_CHECK
static int simulatorType = -1;
if (simulatorType == -1) {
if (access("/etc/vmware/hostd/mockupEsxHost.txt", 0) != -1) {
simulatorType = 1;
} else {
simulatorType = 0;
}
}
return (simulatorType == 1);
#else
/* We are only interested in the case where VMX86_SERVER or friends are defined */
return FALSE;
#endif
}
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