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vmx: Expose datacenter path in domain XML

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Tool such as libguestfs need the datacenter path to get access to disk
images. The ESX driver knows the correct datacenter path, but this
information cannot be accessed using libvirt API yet. Also, it cannot
be deduced from the connection URI in a robust way.

Expose the datacenter path in the domain XML as <vmware:datacenterpath>
node similar to the way the <qemu:commandline> node works. The new node
is ignored while parsing the domain XML. In contrast to <qemu:commandline>
it is output only.
This commit is contained in:
Matthias Bolte 2015-09-11 12:00:47 +02:00 committed by Richard W.M. Jones
parent b421a70811
commit 636a990587
11 changed files with 126 additions and 16 deletions
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4
src/esx/esx_driver.c
View File

@ -2741,6 +2741,7 @@ esxDomainGetXMLDesc(virDomainPtr domain, unsigned int flags)
ctx.parseFileName = esxParseVMXFileName;
ctx.formatFileName = NULL;
ctx.autodetectSCSIControllerModel = NULL;
ctx.datacenterPath = priv->primary->datacenterPath;
def = virVMXParseConfig(&ctx, priv->xmlopt, vmx);
@ -2799,6 +2800,7 @@ esxConnectDomainXMLFromNative(virConnectPtr conn, const char *nativeFormat,
ctx.parseFileName = esxParseVMXFileName;
ctx.formatFileName = NULL;
ctx.autodetectSCSIControllerModel = NULL;
ctx.datacenterPath = NULL;
def = virVMXParseConfig(&ctx, priv->xmlopt, nativeConfig);
@ -2853,6 +2855,7 @@ esxConnectDomainXMLToNative(virConnectPtr conn, const char *nativeFormat,
ctx.parseFileName = NULL;
ctx.formatFileName = esxFormatVMXFileName;
ctx.autodetectSCSIControllerModel = esxAutodetectSCSIControllerModel;
ctx.datacenterPath = NULL;
vmx = virVMXFormatConfig(&ctx, priv->xmlopt, def, virtualHW_version);
@ -3096,6 +3099,7 @@ esxDomainDefineXMLFlags(virConnectPtr conn, const char *xml, unsigned int flags)
ctx.parseFileName = NULL;
ctx.formatFileName = esxFormatVMXFileName;
ctx.autodetectSCSIControllerModel = esxAutodetectSCSIControllerModel;
ctx.datacenterPath = NULL;
vmx = virVMXFormatConfig(&ctx, priv->xmlopt, def, virtualHW_version);

3
src/vmware/vmware_conf.c
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@ -145,6 +145,9 @@ vmwareLoadDomains(struct vmware_driver *driver)
virCommandPtr cmd;
ctx.parseFileName = vmwareCopyVMXFileName;
ctx.formatFileName = NULL;
ctx.autodetectSCSIControllerModel = NULL;
ctx.datacenterPath = NULL;
cmd = virCommandNewArgList(driver->vmrun, "-T",
vmwareDriverTypeToString(driver->type),

9
src/vmware/vmware_driver.c
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@ -381,7 +381,10 @@ vmwareDomainDefineXMLFlags(virConnectPtr conn, const char *xml, unsigned int fla
if (flags & VIR_DOMAIN_DEFINE_VALIDATE)
parse_flags |= VIR_DOMAIN_DEF_PARSE_VALIDATE;
ctx.parseFileName = NULL;
ctx.formatFileName = vmwareCopyVMXFileName;
ctx.autodetectSCSIControllerModel = NULL;
ctx.datacenterPath = NULL;
vmwareDriverLock(driver);
if ((vmdef = virDomainDefParseString(xml, driver->caps, driver->xmlopt,
@ -671,7 +674,10 @@ vmwareDomainCreateXML(virConnectPtr conn, const char *xml,
if (flags & VIR_DOMAIN_START_VALIDATE)
parse_flags |= VIR_DOMAIN_DEF_PARSE_VALIDATE;
ctx.parseFileName = NULL;
ctx.formatFileName = vmwareCopyVMXFileName;
ctx.autodetectSCSIControllerModel = NULL;
ctx.datacenterPath = NULL;
vmwareDriverLock(driver);
@ -1022,6 +1028,9 @@ vmwareConnectDomainXMLFromNative(virConnectPtr conn, const char *nativeFormat,
}
ctx.parseFileName = vmwareCopyVMXFileName;
ctx.formatFileName = NULL;
ctx.autodetectSCSIControllerModel = NULL;
ctx.datacenterPath = NULL;
def = virVMXParseConfig(&ctx, driver->xmlopt, nativeConfig);

68
src/vmx/vmx.c
View File

@ -523,10 +523,11 @@ VIR_ENUM_IMPL(virVMXControllerModelSCSI, VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LAST,
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Helpers
*/
static int
vmxDomainDefPostParse(virDomainDefPtr def,
virCapsPtr caps ATTRIBUTE_UNUSED,
void *opaque ATTRIBUTE_UNUSED)
virVMXDomainDefPostParse(virDomainDefPtr def,
virCapsPtr caps ATTRIBUTE_UNUSED,
void *opaque ATTRIBUTE_UNUSED)
{
/* memory hotplug tunables are not supported by this driver */
if (virDomainDefCheckUnsupportedMemoryHotplug(def) < 0)
@ -536,27 +537,60 @@ vmxDomainDefPostParse(virDomainDefPtr def,
}
static int
vmxDomainDeviceDefPostParse(virDomainDeviceDefPtr dev ATTRIBUTE_UNUSED,
const virDomainDef *def ATTRIBUTE_UNUSED,
virCapsPtr caps ATTRIBUTE_UNUSED,
void *opaque ATTRIBUTE_UNUSED)
virVMXDomainDevicesDefPostParse(virDomainDeviceDefPtr dev ATTRIBUTE_UNUSED,
const virDomainDef *def ATTRIBUTE_UNUSED,
virCapsPtr caps ATTRIBUTE_UNUSED,
void *opaque ATTRIBUTE_UNUSED)
{
return 0;
}
virDomainDefParserConfig virVMXDomainDefParserConfig = {
static virDomainDefParserConfig virVMXDomainDefParserConfig = {
.hasWideSCSIBus = true,
.macPrefix = {0x00, 0x0c, 0x29},
.devicesPostParseCallback = vmxDomainDeviceDefPostParse,
.domainPostParseCallback = vmxDomainDefPostParse,
.devicesPostParseCallback = virVMXDomainDevicesDefPostParse,
.domainPostParseCallback = virVMXDomainDefPostParse,
};
static void
virVMXDomainDefNamespaceFree(void *nsdata)
{
VIR_FREE(nsdata);
}
static int
virVMXDomainDefNamespaceFormatXML(virBufferPtr buf, void *nsdata)
{
const char *datacenterPath = nsdata;
if (!datacenterPath)
return 0;
virBufferAddLit(buf, "<vmware:datacenterpath>");
virBufferEscapeString(buf, "%s", datacenterPath);
virBufferAddLit(buf, "</vmware:datacenterpath>\n");
return 0;
}
static const char *
virVMXDomainDefNamespaceHref(void)
{
return "xmlns:vmware='http://libvirt.org/schemas/domain/vmware/1.0'";
}
static virDomainXMLNamespace virVMXDomainXMLNamespace = {
.parse = NULL,
.free = virVMXDomainDefNamespaceFree,
.format = virVMXDomainDefNamespaceFormatXML,
.href = virVMXDomainDefNamespaceHref,
};
virDomainXMLOptionPtr
virVMXDomainXMLConfInit(void)
{
return virDomainXMLOptionNew(&virVMXDomainDefParserConfig,
NULL, NULL);
return virDomainXMLOptionNew(&virVMXDomainDefParserConfig, NULL,
&virVMXDomainXMLNamespace);
}
char *
@ -1268,6 +1302,7 @@ virVMXParseConfig(virVMXContext *ctx,
bool hgfs_disabled = true;
long long sharedFolder_maxNum = 0;
int cpumasklen;
char *namespaceData;
if (ctx->parseFileName == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
@ -1767,6 +1802,15 @@ virVMXParseConfig(virVMXContext *ctx,
++def->nparallels;
}
/* ctx:datacenterPath -> def:namespaceData */
if (ctx->datacenterPath) {
if (VIR_STRDUP(namespaceData, ctx->datacenterPath) < 0)
goto cleanup;
def->ns = *virDomainXMLOptionGetNamespace(xmlopt);
def->namespaceData = namespaceData;
}
success = true;
cleanup:

10
src/vmx/vmx.h
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@ -1,7 +1,7 @@
/*
* vmx.h: VMware VMX parsing/formatting functions
*
* Copyright (C) 2009-2010 Matthias Bolte <matthias.bolte@googlemail.com>
* Copyright (C) 2009-2011, 2015 Matthias Bolte <matthias.bolte@googlemail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -41,15 +41,17 @@ typedef int (*virVMXAutodetectSCSIControllerModel)(virDomainDiskDefPtr def,
int *model, void *opaque);
/*
* virVMXParseFileName is only used by virVMXParseConfig.
* virVMXFormatFileName is only used by virVMXFormatConfig.
* virVMXAutodetectSCSIControllerModel is optionally used by virVMXFormatConfig.
* parseFileName is only used by virVMXParseConfig.
* formatFileName is only used by virVMXFormatConfig.
* autodetectSCSIControllerModel is optionally used by virVMXFormatConfig.
* datacenterPath is only used by virVMXFormatConfig.
*/
struct _virVMXContext {
void *opaque;
virVMXParseFileName parseFileName;
virVMXFormatFileName formatFileName;
virVMXAutodetectSCSIControllerModel autodetectSCSIControllerModel;
const char *datacenterPath; /* including folders */
};

2
tests/vmx2xmldata/vmx2xml-datacenterpath.vmx Normal file
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@ -0,0 +1,2 @@
config.version = "8"
virtualHW.version = "4"

19
tests/vmx2xmldata/vmx2xml-datacenterpath.xml Normal file
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@ -0,0 +1,19 @@
<domain type='vmware' xmlns:vmware='http://libvirt.org/schemas/domain/vmware/1.0'>
<uuid>00000000-0000-0000-0000-000000000000</uuid>
<memory unit='KiB'>32768</memory>
<currentMemory unit='KiB'>32768</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='i686'>hvm</type>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<video>
<model type='vmvga' vram='4096'/>
</video>
</devices>
<vmware:datacenterpath>folder1/folder2/datacenter1</vmware:datacenterpath>
</domain>

5
tests/vmx2xmltest.c
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@ -201,6 +201,7 @@ mymain(void)
ctx.parseFileName = testParseVMXFileName;
ctx.formatFileName = NULL;
ctx.autodetectSCSIControllerModel = NULL;
ctx.datacenterPath = NULL;
DO_TEST("case-insensitive-1", "case-insensitive-1");
DO_TEST("case-insensitive-2", "case-insensitive-2");
@ -280,6 +281,10 @@ mymain(void)
DO_TEST("svga", "svga");
ctx.datacenterPath = "folder1/folder2/datacenter1";
DO_TEST("datacenterpath", "datacenterpath");
virObjectUnref(caps);
virObjectUnref(xmlopt);

10
tests/xml2vmxdata/xml2vmx-datacenterpath.vmx Normal file
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@ -0,0 +1,10 @@
.encoding = "UTF-8"
config.version = "8"
virtualHW.version = "4"
guestOS = "other"
uuid.bios = "56 4d 9b ef ac d9 b4 e0-c8 f0 ae a8 b9 10 35 15"
displayName = "datacenterpath"
memsize = "4"
numvcpus = "1"
floppy0.present = "false"
floppy1.present = "false"

9
tests/xml2vmxdata/xml2vmx-datacenterpath.xml Normal file
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@ -0,0 +1,9 @@
<domain type='vmware' xmlns:vmware='http://libvirt.org/schemas/domain/vmware/1.0'>
<name>datacenterpath</name>
<uuid>564d9bef-acd9-b4e0-c8f0-aea8b9103515</uuid>
<memory unit='KiB'>4096</memory>
<os>
<type>hvm</type>
</os>
<vmware:datacenterpath>folder1/folder2/datacenter1</vmware:datacenterpath>
</domain>

3
tests/xml2vmxtest.c
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@ -221,6 +221,7 @@ mymain(void)
ctx.parseFileName = NULL;
ctx.formatFileName = testFormatVMXFileName;
ctx.autodetectSCSIControllerModel = testAutodetectSCSIControllerModel;
ctx.datacenterPath = NULL;
DO_TEST("minimal", "minimal", 4);
DO_TEST("minimal-64bit", "minimal-64bit", 4);
@ -293,6 +294,8 @@ mymain(void)
DO_TEST("svga", "svga", 4);
DO_TEST("datacenterpath", "datacenterpath", 4);
virObjectUnref(caps);
virObjectUnref(xmlopt);