conf: Add optional NFS Source Pool <protocol ver='n'/> option

Add an optional way to define which NFS Server version will be
used to content the target NFS server.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
John Ferlan 2019-01-10 19:23:27 -05:00
parent f06e94af07
commit 801f8cfb37
7 changed files with 91 additions and 0 deletions

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@ -122,6 +122,16 @@
&lt;/source&gt;
...</pre>
<pre>
...
&lt;source&gt;
&lt;host name='localhost'/&gt;
&lt;dir path='/var/lib/libvirt/images'/&gt;
&lt;format type='nfs'/&gt;
&lt;protocol ver='3'/&gt;
&lt;/source&gt;
...</pre>
<dl>
<dt><code>device</code></dt>
<dd>Provides the source for pools backed by physical devices
@ -397,6 +407,12 @@
LVM metadata type. All drivers are required to have a default
value for this, so it is optional. <span class="since">Since 0.4.1</span></dd>
<dt><code>protocol</code></dt>
<dd>For a <code>netfs</code> Storage Pool provide a mechanism to
define which NFS protocol version number will be used to contact
the server's NFS service. The attribute <code>ver</code> accepts
an unsigned integer as the version number to use.
<span class="since">Since 5.1.0</span></dd>
<dt><code>vendor</code></dt>
<dd>Provides optional information about the vendor of the
storage device. This contains a single

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@ -531,6 +531,13 @@
<ref name='sourceinfohost'/>
<ref name='sourceinfodir'/>
<ref name='sourcefmtnetfs'/>
<optional>
<element name='protocol'>
<attribute name='ver'>
<ref name='unsignedInt'/>
</attribute>
</element>
</optional>
<optional>
<ref name='sourceinfovendor'/>
</optional>

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@ -420,6 +420,7 @@ virStoragePoolDefParseSource(xmlXPathContextPtr ctxt,
virStorageAuthDefPtr authdef = NULL;
char *name = NULL;
char *port = NULL;
char *ver = NULL;
int n;
relnode = ctxt->node;
@ -546,6 +547,24 @@ virStoragePoolDefParseSource(xmlXPathContextPtr ctxt,
authdef = NULL;
}
/* Option protocol version string (NFSvN) */
if ((ver = virXPathString("string(./protocol/@ver)", ctxt))) {
if ((source->format != VIR_STORAGE_POOL_NETFS_NFS) &&
(source->format != VIR_STORAGE_POOL_NETFS_AUTO)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("storage pool protocol ver unsupported for "
"pool type '%s'"),
virStoragePoolFormatFileSystemNetTypeToString(source->format));
goto cleanup;
}
if (virStrToLong_uip(ver, NULL, 0, &source->protocolVer) < 0) {
virReportError(VIR_ERR_XML_ERROR,
_("storage pool protocol ver '%s' is malformaed"),
ver);
goto cleanup;
}
}
source->vendor = virXPathString("string(./vendor/@name)", ctxt);
source->product = virXPathString("string(./product/@name)", ctxt);
@ -961,6 +980,9 @@ virStoragePoolSourceFormat(virBufferPtr buf,
if (src->auth)
virStorageAuthDefFormat(buf, src->auth);
if (src->protocolVer)
virBufferAsprintf(buf, "<protocol ver='%u'/>\n", src->protocolVer);
virBufferEscapeString(buf, "<vendor name='%s'/>\n", src->vendor);
virBufferEscapeString(buf, "<product name='%s'/>\n", src->product);

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@ -197,6 +197,9 @@ struct _virStoragePoolSource {
* or lvm version, etc.
*/
int format;
/* Protocol version value for netfs */
unsigned int protocolVer;
};
typedef struct _virStoragePoolTarget virStoragePoolTarget;

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@ -0,0 +1,21 @@
<pool type='netfs'>
<name>nfsimages</name>
<uuid>7641d5a8-af11-f730-a34e-0a7dfcede71f</uuid>
<capacity>0</capacity>
<allocation>0</allocation>
<available>0</available>
<source>
<host name='localhost'/>
<dir path='/var/lib/libvirt/images'/>
<format type='nfs'/>
<protocol ver='3'/>
</source>
<target>
<path>/mnt</path>
<permissions>
<mode>0700</mode>
<owner>0</owner>
<group>0</group>
</permissions>
</target>
</pool>

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@ -0,0 +1,21 @@
<pool type='netfs'>
<name>nfsimages</name>
<uuid>7641d5a8-af11-f730-a34e-0a7dfcede71f</uuid>
<capacity unit='bytes'>0</capacity>
<allocation unit='bytes'>0</allocation>
<available unit='bytes'>0</available>
<source>
<host name='localhost'/>
<dir path='/var/lib/libvirt/images'/>
<format type='nfs'/>
<protocol ver='3'/>
</source>
<target>
<path>/mnt</path>
<permissions>
<mode>0700</mode>
<owner>0</owner>
<group>0</group>
</permissions>
</target>
</pool>

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@ -83,6 +83,7 @@ mymain(void)
DO_TEST("pool-iscsi-auth");
DO_TEST("pool-netfs");
DO_TEST("pool-netfs-auto");
DO_TEST("pool-netfs-protocol-ver");
DO_TEST("pool-netfs-gluster");
DO_TEST("pool-netfs-cifs");
DO_TEST("pool-scsi");