basic: rework virtualization detection API

[thirdparty/systemd.git] / src / basic / virt.h

/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

#pragma once

/***
  This file is part of systemd.

  Copyright 2011 Lennart Poettering

  systemd 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.

  systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <stdbool.h>

#include "macro.h"

enum {
        VIRTUALIZATION_NONE = 0,

        VIRTUALIZATION_VM_FIRST,
        VIRTUALIZATION_KVM = VIRTUALIZATION_VM_FIRST,
        VIRTUALIZATION_QEMU,
        VIRTUALIZATION_BOCHS,
        VIRTUALIZATION_XEN,
        VIRTUALIZATION_UML,
        VIRTUALIZATION_VMWARE,
        VIRTUALIZATION_ORACLE,
        VIRTUALIZATION_MICROSOFT,
        VIRTUALIZATION_ZVM,
        VIRTUALIZATION_PARALLELS,
        VIRTUALIZATION_VM_OTHER,
        VIRTUALIZATION_VM_LAST = VIRTUALIZATION_VM_OTHER,

        VIRTUALIZATION_CONTAINER_FIRST,
        VIRTUALIZATION_SYSTEMD_NSPAWN = VIRTUALIZATION_CONTAINER_FIRST,
        VIRTUALIZATION_LXC_LIBVIRT,
        VIRTUALIZATION_LXC,
        VIRTUALIZATION_OPENVZ,
        VIRTUALIZATION_DOCKER,
        VIRTUALIZATION_CONTAINER_OTHER,
        VIRTUALIZATION_CONTAINER_LAST = VIRTUALIZATION_CONTAINER_OTHER,

        _VIRTUALIZATION_MAX,
        _VIRTUALIZATION_INVALID = -1
};

static inline bool VIRTUALIZATION_IS_VM(int x) {
        return x >= VIRTUALIZATION_VM_FIRST && x <= VIRTUALIZATION_VM_LAST;
}

static inline bool VIRTUALIZATION_IS_CONTAINER(int x) {
        return x >= VIRTUALIZATION_CONTAINER_FIRST && x <= VIRTUALIZATION_CONTAINER_LAST;
}

int detect_vm(void);
int detect_container(void);
int detect_virtualization(void);

const char *virtualization_to_string(int v) _const_;
int virtualization_from_string(const char *s) _pure_;