libvirt/tools/virt-host-validate-bhyve.c
Roman Bogorodskiy 321ff4087c virt-host-validate: add bhyve support
Add bhyve support to virt-host-validate(1). It checks for the
essential kernel modules to be available so that user can actually
start VMs, have networking and console access.

It uses the kldnext(2)/kldstat(2) routines to retrieve modules list.
As bhyve is only available on FreeBSD and these routines were available
long before bhyve appeared, not adding any specific configure checks
for that.

Also, update tools/Makefile.am to add
virt-host-validate-$driver.[hc] to the build only if the
appropriate driver is enabled.
2017-03-11 21:22:58 +04:00

79 lines
2.7 KiB
C

/*
* virt-host-validate-bhyve.c: Sanity check a bhyve hypervisor host
*
* Copyright (C) 2017 Roman Bogorodskiy
*
* This library 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; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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 GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include <config.h>
#include <sys/param.h>
#include <sys/linker.h>
#include <stdio.h>
#include "virt-host-validate-bhyve.h"
#include "virt-host-validate-common.h"
#define MODULE_STATUS(mod, err_msg, err_code) \
virHostMsgCheck("BHYVE", _("for %s module"), #mod); \
if (mod ## _loaded) { \
virHostMsgPass(); \
} else { \
virHostMsgFail(err_code, \
_("%s module is not loaded, " err_msg), \
#mod); \
ret = -1; \
} \
#define MODULE_STATUS_FAIL(mod, err_msg) \
MODULE_STATUS(mod, err_msg, VIR_HOST_VALIDATE_FAIL)
#define MODULE_STATUS_WARN(mod, err_msg) \
MODULE_STATUS(mod, err_msg, VIR_HOST_VALIDATE_WARN)
int virHostValidateBhyve(void)
{
int ret = 0;
int fileid = 0;
struct kld_file_stat stat;
bool vmm_loaded = false, if_tap_loaded = false;
bool if_bridge_loaded = false, nmdm_loaded = false;
for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
stat.version = sizeof(struct kld_file_stat);
if (kldstat(fileid, &stat) < 0)
continue;
if (STREQ(stat.name, "vmm.ko"))
vmm_loaded = true;
else if (STREQ(stat.name, "if_tap.ko"))
if_tap_loaded = true;
else if (STREQ(stat.name, "if_bridge.ko"))
if_bridge_loaded = true;
else if (STREQ(stat.name, "nmdm.ko"))
nmdm_loaded = true;
}
MODULE_STATUS_FAIL(vmm, "will not be able to start VMs");
MODULE_STATUS_WARN(if_tap, "networking will not work");
MODULE_STATUS_WARN(if_bridge, "bridged networking will not work");
MODULE_STATUS_WARN(nmdm, "nmdm console will not work");
return ret;
}