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If you use the VDDK library to access virtual machines remotely, you
really need to know the Managed Object Reference ("moref") of the VM.
This must be passed each time you connect to the API.
For example nbdkit's VDDK plugin requires a moref to be passed to
mount up a VM's disk remotely:
nbdkit vddk user=root password=+/tmp/rootpw \
server=esxi.example.com thumbprint=xx:xx:xx:... \
vm=moref=2 \
file="[datastore1] Fedora/Fedora.vmdk"
Getting the moref is a huge pain. To get some idea of what it is, why
it is needed, and how much trouble it is to get it, see:
https://blogs.vmware.com/vsphere/2012/02/uniquely-identifying-virtual-machines-in-vsphere-and-vcloud-part-1-overview.html
https://blogs.vmware.com/vsphere/2012/02/uniquely-identifying-virtual-machines-in-vsphere-and-vcloud-part-2-technical.html
However the moref is available conveniently in the internals of the
libvirt VMX driver. This patch exposes it as a custom XML element
using the same "vmware:" namespace which was previously used for the
datacenterpath (see libvirt commit 636a990587).
It appears in the XML like this:
<domain type='vmware' xmlns:vmware='http://libvirt.org/schemas/domain/vmware/1.0'>
<name>Fedora</name>
...
<vmware:datacenterpath>ha-datacenter</vmware:datacenterpath>
<vmware:moref>2</vmware:moref>
</domain>
Note that the moref can appear as either a simple ID (for esx://
connections) or as a "vm-<ID>" (for vpx:// connections). It should be
treated by users as an opaque string.
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
144 lines
4.9 KiB
C
144 lines
4.9 KiB
C
/*
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* vmx.h: VMware VMX parsing/formatting functions
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*
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* Copyright (C) 2009-2011, 2015 Matthias Bolte <matthias.bolte@googlemail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef __VIR_VMX_H__
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# define __VIR_VMX_H__
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# include "internal.h"
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# include "virconf.h"
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# include "domain_conf.h"
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typedef struct _virVMXContext virVMXContext;
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virDomainXMLOptionPtr virVMXDomainXMLConfInit(void);
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Context
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*/
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typedef char * (*virVMXParseFileName)(const char *fileName, void *opaque);
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typedef char * (*virVMXFormatFileName)(const char *src, void *opaque);
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typedef int (*virVMXAutodetectSCSIControllerModel)(virDomainDiskDefPtr def,
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int *model, void *opaque);
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/*
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* parseFileName is only used by virVMXParseConfig.
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* formatFileName is only used by virVMXFormatConfig.
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* autodetectSCSIControllerModel is optionally used by virVMXFormatConfig.
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* datacenterPath is only used by virVMXFormatConfig.
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* moref is only used by virVMXFormatConfig.
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*/
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struct _virVMXContext {
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void *opaque;
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virVMXParseFileName parseFileName;
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virVMXFormatFileName formatFileName;
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virVMXAutodetectSCSIControllerModel autodetectSCSIControllerModel;
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const char *datacenterPath; /* including folders */
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const char *moref;
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};
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Helpers
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*/
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char *virVMXEscapeHex(const char *string, char escape, const char *special);
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# define virVMXEscapeHexPipe(_string) virVMXEscapeHex(_string, '|', "\"")
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# define virVMXEscapeHexPercent(_string) virVMXEscapeHex(_string, '%', "/\\")
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int virVMXUnescapeHex(char *string, char escape);
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# define virVMXUnescapeHexPipe(_string) virVMXUnescapeHex(_string, '|')
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# define virVMXUnescapeHexPercent(_string) virVMXUnescapeHex(_string, '%')
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char *virVMXConvertToUTF8(const char *encoding, const char *string);
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* VMX -> Domain XML
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*/
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virDomainDefPtr virVMXParseConfig(virVMXContext *ctx,
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virDomainXMLOptionPtr xmlopt,
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virCapsPtr caps,
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const char *vmx);
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int virVMXParseVNC(virConfPtr conf, virDomainGraphicsDefPtr *def);
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int virVMXParseSCSIController(virConfPtr conf, int controller, bool *present,
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int *virtualDev);
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int virVMXParseDisk(virVMXContext *ctx, virDomainXMLOptionPtr xmlopt,
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virConfPtr conf, int device, int busType,
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int controllerOrBus, int unit, virDomainDiskDefPtr *def,
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virDomainDefPtr vmdef);
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int virVMXParseFileSystem(virConfPtr conf, int number, virDomainFSDefPtr *def);
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int virVMXParseEthernet(virConfPtr conf, int controller, virDomainNetDefPtr *def);
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int virVMXParseSerial(virVMXContext *ctx, virConfPtr conf, int port,
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virDomainChrDefPtr *def);
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int virVMXParseParallel(virVMXContext *ctx, virConfPtr conf, int port,
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virDomainChrDefPtr *def);
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int virVMXParseSVGA(virConfPtr conf, virDomainVideoDefPtr *def);
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Domain XML -> VMX
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*/
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char *virVMXFormatConfig(virVMXContext *ctx, virDomainXMLOptionPtr xmlopt,
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virDomainDefPtr def, int virtualHW_version);
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int virVMXFormatVNC(virDomainGraphicsDefPtr def, virBufferPtr buffer);
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int virVMXFormatDisk(virVMXContext *ctx, virDomainDiskDefPtr def,
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virBufferPtr buffer);
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int virVMXFormatFloppy(virVMXContext *ctx, virDomainDiskDefPtr def,
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virBufferPtr buffer, bool floppy_present[2]);
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int virVMXFormatFileSystem(virDomainFSDefPtr def, int number,
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virBufferPtr buffer);
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int virVMXFormatEthernet(virDomainNetDefPtr def, int controller,
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virBufferPtr buffer);
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int virVMXFormatSerial(virVMXContext *ctx, virDomainChrDefPtr def,
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virBufferPtr buffer);
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int virVMXFormatParallel(virVMXContext *ctx, virDomainChrDefPtr def,
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virBufferPtr buffer);
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int virVMXFormatSVGA(virDomainVideoDefPtr def, virBufferPtr buffer);
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#endif /* __VIR_VMX_H__ */
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